亚洲美女香蕉视频在线

National order hotline: 0577-86819338

Current position/ home page  /  publicity

publicity

Zhejiang Zhangda Light Industry Machinery Factory



explain


1. This acceptance report is the acceptance conducted by Zhejiang Zhangda light industry machinery factory according to the requirements of the approved welding evaluation report and the opinions of professionals from Wenzhou Environmental Protection Bureau on March 2, 2018.

2. This acceptance report is made in duplicate, one for filing and the other for filing with the Environmental Protection Bureau of economic and Technological Development Zone.


1. Basic information table

Acceptance basis:

1) Interim Measures for environmental protection acceptance of completed construction projects, No.4 [2017] of state environmental planning, since November 20, 2017.

2) Environmental protection law of the people's Republic of China, order No. 9 of the president of the people's Republic of China, since January 1, 2015.

3) Law of the people's Republic of China on prevention and control of radioactive pollution, since October 2003.

4) Regulations on environmental protection of construction projects, Decree No. 253 of the State Council, since November 29, 1998.

5) Regulations on safety and protection of radioisotope and radiation devices, order No. 449 of the State Council, since December 2005.

6) "Radiation environmental management measures" No.3 order of the State Environmental Protection Administration, since 1990.

7) Technical specification for radiation environmental monitoring, HJ / T 61-2001

8) "Technical requirements for completion acceptance test of environmental protection facilities of construction projects", State Environmental Protection Administration, 2000.

9) Administrative measures for safety licensing of radioisotope and radiation devices, Decree No. 31 of State Environmental Protection Administration (revised in 2008).

10) Administrative measures for safety and protection of radioisotope and radiation devices (Order No. 18 of the Ministry of environmental protection).

11) Radiation environment management measures of Zhejiang Province, Zhejiang provincial government order No. 289, 2012.

12) "Environmental impact report of industrial flaw detection device application project of Zhejiang Zhangda Light Industry Machinery Factory", Zhongfu Environmental Technology Co., Ltd., No. zfhk-fb17220068, September 2017.

13) Letter on approval opinions on environmental impact report form of application project of industrial flaw detection device in Zhejiang Zhangda Light Industry Machinery Plant wenhuanfu [2017] No. 13.


Standard and execution level:

The acceptance standards are consistent with the EIA standards, namely:

(1) National standard of the people's Republic of China basic standard for protection against ionizing radiation and safety of radiation sources (GB 18871-2002)

This standard applies to the safety of personnel exposed to ionizing sources and practices.

B1 dose limits (Appendix B of the standard)

B1.1 occupational exposure

B1.1.1 dose limits

B1.1.1.1 the occupational exposure level of any worker should be controlled to not exceed the following values:

a) The average dose of 20 years (SV) is not determined by any department;

This project takes 20msv as the management limit of professional staff.

B1.2 public exposure

B1.2.1 in practice, the estimated average dose to members of key population groups in the public should not exceed the following limits: a) annual limited dose, 1 mSv; b) under special circumstances, if the annual average dose of five consecutive years does not exceed 1 mSv, the effective dose in a single year can be increased to 5 mSv;

In this project, 1 / 4 of 1 mSv, i.e. 0.25 mSv, is taken as the management limit for public members.

(2) Radiological protection standard for industrial radiographic testing (GBZ 117-2015)

This standard specifies the radiation protection requirements for industrial X-ray flaw detection room flaw detection, industrial X-ray CT flaw detection and X-ray field detection.

This standard is applicable to the flaw detection work carried out by industrial radiographic testing device (hereinafter referred to as X-ray device or flaw detector) below 500kV.

4.1 protection safety requirements

4.1.1 the radiation safety around the detection room shall be fully considered, and the operation room shall be separated from the flaw detection room and avoided as far as possible

The direction of the useful wire harness.

2.2.1 the work place should be managed in different areas. Generally, the internal area enclosed by the wall of flaw detection room is classified as control

The area adjacent to the outside of the wall is designated as the supervision area.

3.4 the X-ray radiation door and the shielding door at the same time shall meet the following requirements:

a) The reference control level of the weekly dose of personnel at the point of concern is not greater than 100 μ SV / week for occupational workers and 5 μ SV / week for the public;

b) The reference control level of the highest ambient dose equivalent rate of the focus is not greater than 2.5 μ SV / h.

4.1.4 radiation shielding on the top of flaw detection chamber shall meet the following requirements:

a) The radiation shielding requirements on the top of the flaw detection room are the same as those in 4.1.3 when the buildings above the flaw detection room or the buildings adjacent to the flaw detection room are in the solid angle area from the radiation source point to the inner surface edge of the flaw detection room top;

b) The reference control level of dose rate at 30cm of the outer surface of the flaw detection chamber can be taken as 100 μ SV / h for the roof without personnel.

4.1.5 door machine interlocking device shall be set in the flaw detection room, and the x-ray device can carry out flaw detection only after the door (including personnel door and cargo door) is closed. When the door is opened, X-ray irradiation shall be stopped immediately. When the door is closed, X-ray irradiation cannot be started automatically. The interlock device shall be set inside the flaw detection room in case of emergency.

4.1.6 the door and interior of flaw detection room shall be equipped with indicator light and sound prompt device to display "ready" and "irradiation" status. The "ready" signal should last long enough to ensure the safety of personnel in the flaw detection room. "Preparation" signal and "exposure" signal should be significantly different from other alarm signals used in the workplace.

4.1.7 the irradiation status indication device shall be interlocked with the X-ray flaw detection device.

4.1.8 there shall be clear instructions on the significance of "preparation" and "irradiation" signals at eye-catching positions inside and outside the flaw detection room.

4.1.9 ionizing radiation warning signs and Chinese warning instructions shall be provided on the protective door of flaw detection room.

4.1.10 emergency stop button or pull rope shall be installed in the flaw detection room to ensure that the irradiation can be stopped immediately in case of emergency.

The button or pull rope shall be installed so that the personnel can use it without passing through the main radiation harness when they are at any position in the flaw detection room. Pull cord or label shall be used.

4.1.11 the flaw detection room shall be equipped with mechanical ventilation device, and the outer opening of the exhaust pipe shall not face the densely populated area. The effective ventilation rate per hour should not be less than 3 times.

4.2 safety operation requirements

4.2.1 in addition to wearing conventional personal dosimeters, flaw detection personnel should also be equipped with personal dose alarm when entering the flaw detection room. When the radiation level reaches the set alarm level, the dosimeter will give an alarm, and the flaw detection personnel shall immediately leave the flaw detection room, prevent others from entering the flaw detection room, and report to the radiation protection director immediately.

4.2.2 the radiation level or ambient dose equivalent rate of the surrounding area outside the flaw detection room should be measured regularly, including the working position of the operator and the residence area of the adjacent area. The measured values should be compared with the reference control level. When the measured value is higher than the reference control level, the flaw detection shall be terminated and reported to the radiation protection director.

4.2.3 check whether the dosimeter works normally before the shift or the use of the dosimeter. If it is found that the dosimeter cannot work normally during the inspection, the flaw detection shall not be started.

4.4. The radiation detector should be equipped with proper radiation protection device.

4.2.5 before each exposure, the operator should confirm that there is no personnel inside the flaw detection room and close the protective door. Only when the protective door is closed and all protection and safety device systems are started and running normally, can the flaw detection work be started.

4.2.6 carry out the work not expected in the design of flaw detection room. If the workpiece is too large, the door must be opened for flaw detection, and 5.1 and 5.1 shall be followed

3. 5.4 and 5.5.

Results evaluation: 1

Under the rated working conditions, the radiation level around the detection room meets the requirements of 4.1.3 and 4.1.4.

The safety measures such as the interlock device of protective door machine in the flaw detection room, as well as the output signal indicator light, all meet the requirements of 4.1.5 to 4.1.10; the enterprise undertakes to use only one equipment for each flaw detection, and each equipment is provided with protective door machine interlock when multiple equipment are used.

(3) Specification for radiation shielding of industrial X-ray inspection room (GBZ / t250-2014)

This standard specifies the shielding requirements of industrial X-ray inspection room.

This standard is applicable to the detection room of industrial X-ray flaw detection device below 500kV.

3.2 radiation to be shielded

3.2.1 the shielding of useful wiring harness shall be considered for the whole wall of corresponding useful wiring harness, and it is not necessary to consider those entering into the useful wiring harness area

Scattering radiation.

3.2.2 scattering radiation 90 ° scattering radiation from 0 ° incident flaw detection workpiece is considered.

3.2.3 when the combined effect of leakage and scattering radiation may exist, the leakage radiation and scattering radiation are usually estimated separately

When the difference of shielding thickness between them is one value layer thickness (TVL) or more, the thicker one is adopted. When the difference is less than one TVL, a half value layer thickness (HVL) is added to the thicker shielding.

3.3 other requirements

3.3.1 generally, the flaw detection room shall be equipped with personnel door and separate workpiece door. For small workpieces that can be handled manually, only personnel door can be set in the flaw detection room. The personnel door of flaw detection room should be labyrinth.

3.3.2 the control room of the flaw detection device shall be placed outside the flaw detection room, and the control room and personnel door shall be away from the direction exposed by the useful wiring harness.

3.3.3 in the shielding design, the shielding of gaps, pipe holes and weak links should be considered.

3.3. When the X-ray tube is designed according to the maximum voltage and voltage, the X-ray tube should be used.

3.3.5 the structure, construction cost and space occupied by the flaw detection room should be considered. The commonly used materials are concrete, lead and steel plate.

Typical conditions

The typical conditions of flaw detection in the flaw detection room are as follows:

a) The control value of dose rate is 2.5 μ Gy / h at 30cm away from the outdoor surface of flaw detection.

b) The current (I) of the X-ray tube is 5mA, and the angle between the central axis of the cone beam and the cone boundary of the X-ray flaw detection device is 20..

c) The dose rate of leakage radiation of X-ray flaw detector at 1m away from the target is shown in Table 1.

Typical thickness of shielding chamber

In 5.1 typical conditions, different kV X-ray useful harness, leakage radiation and 90. Required for scattering radiation shielding

The required lead and concrete thicknesses are listed in Table 1-1, table 1-2 and table 1-3.

The thickness of concrete is 2.5 mm for the outer wall of concrete, and the thickness of concrete is 2.5 mm, which is consistent with the standard of concrete outside the door.

(4) Personal detection range of occupational external exposure GBZ 128-2002


Table 2 project overview and operation of environmental protection facilities

2.1 basic information of the project

Zhejiang Zhangda Light Industry Machinery Factory was established in 1994, and was originally located at 22 dalangqiao West Road, Shacheng street, Wenzhou Economic Development Zone It is a professional manufacturer of stainless steel thin-walled containers for food industry in China. In order to expand the production capacity, the company built a new plant at No. 678, Wudao, Binhai Park, Wenzhou Economic and Technological Development Zone, for the production of starch derivative equipment and sanitary fluid accessories. In January 2018, a new industrial X-ray detection room was built in the plant area, covering an area of 67.2m2. Two X-ray flaw detectors (one xxq-2505 directional and one xxh-2505) in the original plant area were relocated A new xxq-1605 directional flaw detector (the maximum tube voltage of the three devices is 250kV, According to the national regulations on radiation environment management, the enterprise commissioned Zhongfu Environmental Technology Co., Ltd. to conduct radiation environmental impact assessment on the project in July 2017, which was completed in early September 2017, and was approved by Wenzhou Environmental Protection Bureau on September 14, 2017. The project obtained radiation license and put into trial operation in early March 2018, with an annual production date of 10 0 days, the production time of flaw detector is about 4 hours, and the acceptance scale is 3 X-ray flaw detection machines. The technical parameters of the equipment are shown in table 2-1

2.1.1 geographical location of enterprise and flaw detection room

The company's new plant is located in No. 678, 5th Road, Binhai Park, Wenzhou Economic and Technological Development Zone The northeast of the plant area is adjacent to Nippon Light Industry Co., Ltd. and Ningbo gangbo Machinery Co., Ltd., about 50m away from the flaw detection room; xiahenghe River in the southeast of the plant area is about 84m away from the flaw detection room, and Haitong road is opposite the river; the southwest of the plant area is open space; the northwest is Binhai No.5 Road, which is about 150m away from the detection room, and there is an open space across the road. The proposed flaw detection room is located at the south end of the plant. The east side of the flaw detection room is close to the proposed welding workshop, the south side is adjacent to the proposed forging workshop, the west side is adjacent to the power distribution room and fire fighting access of the plant area, and the North side is the road in the workshop. There is no school, hospital, residential and other environmental sensitive targets within 50m of the project. The geographical location and surrounding environment are shown in Figure 1.

2.2 working principle

2.2.1 flaw detection principle

X-ray flaw detector is a kind of testing device which uses X-ray to make transmission film on the object. The X-ray produced by the X-ray tube irradiates the X-ray film pasted on the weld of the workpiece to be inspected. When the X-ray passes through the crack, its attenuation is obviously reduced, and the radiation accepted by the film increases. A black image is generated on the developed film to show the position of the crack. The X-ray flaw detector can detect the position of the crack


According to this, the purpose of flaw detection is realized.

X-ray machine is mainly composed of X-ray tube and high-voltage power supply. The X-ray tube consists of a cathode and an anode sealed in a vacuum glass shell, as shown in figure 9.1-1. The cathode is a tungsten filament, which is placed in a focusing cup. When the filament is electrified and heated, the electrons "evaporate", and the focusing cup makes these electrons gather into a beam and shoot directly at the target embedded in the tungsten anode. The higher the filament current and the higher the temperature, the more electrons are emitted. A high-voltage power supply is applied between the two poles of an X-ray tube to form an electric field between the two poles. The electrons are accelerated to a high speed before they shoot at the target. The target is usually made of refractory metals with high atomic number, such as tungsten, platinum and gold. High speed electrons bombard the target to produce X-rays and a lot of heat.

2.2.2 flaw detection process

The X-ray inspection of the company is all in the fixed exposure room, and the workpiece to be inspected is placed in the exposure room, and X is arranged at the position to be inspected When the exposure time and material of the exposure tube are not wrong, the inspection personnel shall close the exposure tube according to the nature of the exposure tube and the exposure time, and then close the inspection tube according to the nature of the exposure tube and the exposure time. After all exposure photography is completed, the staff enter the exposure room, open the workpiece door, send the flaw detection workpiece out of the exposure room, remove the exposed X-ray film from the flaw detection workpiece, and evaluate the film after the darkroom is washed, and complete the flaw detection.

2.2

2.2.3.1 X-ray

The flaw detector of this project is a II ray device. According to the working principle of the x-ray device, X-ray is generated and disappeared by opening and closing the random device. The X-ray flaw detector used in this project will emit X-ray only when it is turned on and in the outgoing line state (exposure state). Therefore, X-ray becomes the main factor of environmental pollution during the start-up exposure.

(1) Normal condition

When the X-ray machine is shut down, there is no generation. Only in the process of work, due to the direct x-ray, reflector scattering, may have radiation impact on the staff of its accessories and the surrounding public, the way is external X-ray irradiation. During the exposure process of the X-ray flaw detector, after the X-ray passes through the relevant radiation protection shield of the flaw detection room, the X-ray is basically shielded in the detection room, which has little radiation impact on the workplace and the surrounding environment.

(2) Accident conditions

The x-ray device used belongs to class II radiation device, and the possible accident conditions are as follows:

A. When the X-ray machine takes photos of the workpiece, the interlock device of the gantry crane fails, and the staff enters the flaw detection room by mistake, which causes additional radiation; or the lead door is not completely closed, which causes X-ray leakage outside the flaw detection room, causing unnecessary radiation to the surrounding personnel.

B. The X-ray machine began to detect the workpiece, which caused additional exposure to the workers.

C. Artificial exposure.

2.2.3.2 waste gas

Under the condition of no X-ray detection, a small amount of harmful gas will be emitted in the ventilation chamber without X-ray detection.

2.2.3.3 wastewater and solid waste

The waste developer (fixator) solution and film produced in the process of X-ray flaw detection belong to HW16, which is listed in the national list of hazardous wastes. It is estimated that the annual output is 30kg, and the waste developer (fixator) and film produced in the process of X-ray flaw detection belong to HW16, which is listed in the national hazardous waste list. It is estimated that the annual output is 30kg, and the company with hazardous waste treatment qualification is entrusted to.

The X-ray flaw detector does not produce other wastes during operation.

2.2.4 operation of environmental protection facilities

During the trial operation, the door machine interlocking device of the flaw detection room can effectively realize that when the door is not closed properly or is opened while working, or the personnel in the flaw detection room press the emergency stop button, the power supply of the X-ray machine can be cut off to protect the safety of the personnel; there is a fixed exhaust fan connected with the elbow in the flaw detection room, which starts to work after the door is closed and continues to work after the radiation, so as to meet the environmental impact assessment The requirements of the document for waste gas treatment; the enterprise has equipped the storage barrel for collecting waste liquid (made of plastic, stored separately for developing and fixing) in the darkroom, and has anti leakage measures. It has signed an agreement with Wenzhou Xinpeng renewable resources Co., Ltd. on the treatment of hazardous waste liquid and waste film, and has not dealt with it illegally.

3.1 comparison between EIA content and actual situation (table)

Table 4 (instruments and reports omitted)

Dose estimation formula:

According to the calculation formula in the EIA report (Appendix A of unscear-2000 report), the per capita annual effective dose of external radiation generated by X-ray is calculated

HEr = H×t×10-3 (mSv/a)

Among them: her: annual effective dose equivalent per capita of X-ray external irradiation, mSv / A;

H: The dose rate of the focus, μ SV / h;

T: X-ray exposure time, H / A.

Additional dose for staff:

X-ray detection room staff received radiation mainly from the X-ray leakage to the environment when starting up.

It can be seen from Table 4-2 that the X-radiation dose rate of the working position does not increase after startup, which is within the fluctuation range of background value. Therefore, the additional annual effective dose received by the staff under normal working conditions can be ignored.

Dose analysis of other staff and members of the public:

When the X-ray flaw detector starts to work, the work warning light is turned on and there is a voice broadcast to warn other workers in the workshop not to stay around the flaw detection room. The enterprise has formulated a strict management system, the public members are generally not allowed to enter the plant area, so other workshop personnel and public personnel will not receive additional radiation exposure, so it meets the requirements of "dose limit" in "basic standard for protection against ionizing radiation and safety of radiation sources" (GB18871-2002).


Table 5 radiation dose

Dose estimation formula:

According to the calculation formula in the EIA report (Appendix A of unscear-2000 report), the per capita annual effective dose of external radiation generated by X-ray is calculated

HEr = H×t×10-3 (mSv/a)

Among them: her: annual effective dose equivalent per capita of X-ray external irradiation, mSv / A;

H: The dose rate of the focus, μ SV / h;

T: X-ray exposure time, H / A.

Additional dose for staff:

X-ray detection room staff received radiation mainly from the X-ray leakage to the environment when starting up.

It can be seen from Table 4-2 that the X-radiation dose rate of the working position does not increase after startup, which is within the fluctuation range of background value. Therefore, the additional annual effective dose received by the staff under normal working conditions can be ignored.

Dose analysis of other staff and members of the public:

When the X-ray flaw detector starts to work, the work warning light is turned on and there is a voice broadcast to warn other workers in the workshop not to stay around the flaw detection room. The enterprise has formulated a strict management system, the public members are generally not allowed to enter the plant area, so other workshop personnel and public personnel will not receive additional radiation exposure, so it meets the requirements of "dose limit" in "basic standard for protection against ionizing radiation and safety of radiation sources" (GB18871-2002).


Table 6 inspection results of environmental management and safety protection

According to the Interim Measures for environmental protection acceptance of completed construction projects (No.4 document of the State Environmental Planning and environmental assessment [2017], the environmental protection law of the people's Republic of China (No.9), the regulations on safety and protection of radioisotope and radiation devices (order No.449) of the State Council, and the


1、 Organization


Zhang kuiping, an enterprise legal person (unit head) of Zhejiang Zhangda Light Industry Machinery Factory, is the person in charge of radiation safety of the enterprise. At the same time, a full-time radiation safety and protection management leading group is set up, and Zhang Qing is designated to be responsible for the full-time radiation safety and protection work.

2、 Safety management system


The enterprise has formulated a radiation protection management system, including:

one Working system: the radiation safety and protection management system specifies the work requirements such as the establishment of standing book, formulation of relevant systems, employment with certificate, health management, etc.; the maintenance and repair system of radiation equipment specifies the work requirements of regular inspection and maintenance of equipment; the health examination and training plan for radiation workers defines the body of radiation operators Inspection, safety training and assessment requirements.


2. Operating procedures: X-ray machine operation procedures, which specify the precautions for safe operation of flaw detection machine; operating procedures for darkroom and precautions in operation process; safety technical operation procedures for film evaluation room, which specifies the film evaluation area and precautions in the operation process.


3. Formulated "radiation job responsibilities": defined the responsibilities of radiation workers and matters needing attention in work.


4. The rules and regulations formulated by the enterprise include safe operation system, safety measures to prevent accidental exposure in radiation workplace, radiation environment and personal dose detection plan, radiation accident management regulations, emergency plan for radiation accident, storage and use system of X-ray machine, etc.


The above system has been in line with the relevant requirements of the state environmental protection administration order No. 31: Administrative Measures for safety licensing of radioisotope and radiation devices.


3、 Implementation of management system and environmental protection measures


1. Zhang kuiping, the person in charge of the unit, has signed the letter of responsibility for radiation work safety, and the enterprise undertakes to do a good job in the safety protection management of radiation devices in accordance with the requirements of national laws and regulations in the form of the letter of responsibility for radiation work safety.


2. Education and training of radiation workers. According to the production demand of the enterprise and the number of qualified operators, there are 3 X-ray machines available, but only one of them is selected for radiography each time according to the different products. One shift per day, 4 hours per shift, and 100 days of production a year. According to the production needs, the enterprise is equipped with 2 operators. At present, three radiation workers of the enterprise have passed the radiation safety and protection training organized by Zhejiang radiation environmental monitoring station or Zhejiang Guofu Environmental Protection Technology Co., Ltd., and have obtained the qualification certificate to work with certificate. Zhang kuiping has obtained the qualification certificate of legal person radiation safety training


4. Safety inspection of X-ray inspection room. Operators shall inspect the X-ray flaw detection room before and after each use, and establish inspection and use records. Through field inspection, the interlock devices of X-ray machine and gantry crane are in normal operation.


5. X-ray machine account. The standing book is basically complete, including the name, model, type, type, use, source and destination of the radiation device.


6. Waste liquid of developing film. The company has signed a hazardous waste treatment agreement with Wenzhou Xinpeng renewable resources Co., Ltd., and has filed the annual treatment capacity and treatment agreement at No. 22, dalangqiao West Road in the Environmental Protection Bureau, and strictly implement the requirements of the Ministry of environmental protection in the treatment of waste liquid

Waste treatment and transportation 5-sheet system.

4、 Safety protection

1. The protective walls around the flaw detection room are 500mm thick cast-in-place concrete walls, and the ceiling and labyrinth walls are made of 300mm thick cast-in-place concrete. The work-piece door and the staff access door are made of frame structure, and the sliding door is laid with 12mm thick lead plate, and the lap joint is more than 10 times of the gap between the doors, meeting the radiation protection ability.

2. The door operator interlock device is set between the protective door of the flaw detection room and the X-ray machine. Before all the protective doors are closed, the X-ray machine cannot be started without power supply. When the X-ray machine is working, the protective door is opened and the X-ray machine stops working immediately. The radiation safety interlock device meets the requirements of normal operation.

3. The air outlet is set in the flaw detection room to strengthen the ventilation of the detection room and reduce the concentration of ozone and nitrogen oxides in the room.

4. Ionizing radiation signs, warning lights and warning lines with "in preparation", "under exposure" and language prompts. The enterprise has obvious signs of ionizing radiation on the protective door and X-ray device, warning lights with "preparation", "irradiation" and language prompt are set at the entrance and exit of workers in the flaw detection room, the entry and exit of workpieces, and the warning line is set at 1 m outside the entrance gate of the workpiece in the flaw detection room.

5. Video monitoring system. In the flaw detection room, cameras are installed above and on the opposite corner of the personnel access door, and monitors are installed on the X-ray machine console, which can monitor any corner of the flaw detection room in real time, and stop the machine immediately if any abnormality is found.

6. The emergency stop device is equipped with an emergency stop button on the wall of the flaw detection room. The control cabinet has a short-circuit switch. Press the switch, the X-ray machine can stop working immediately. The personnel access door can be opened manually from the inside or outside. The motor button of the workpiece door is in the flaw detection room, which can meet the requirements of opening the door when the personnel are closed.

7. The exposure room covers an area of 67.2 m2, with a length * width of 9.6 * 7m and a height of 5.5m. It has no window design. It is equipped with door motor interlocking, door lamp interlocking and X-ray machine. The cable is connected to the external control cabinet through the U-shaped tube at the bottom of the flaw detection room, which meets the requirements of EIA.

5、 Implementation of safety assessment system

According to the requirements of the administrative measures for safety licensing of radioisotopes and radiation devices, the radiation work unit shall prepare an annual assessment report on the safety and protection status of radiation devices every year, and submit it to the local environmental protection department before January 31 of the following year. According to the requirements of the radiation protection equipment, the annual radiation protection report and operation report should be established and implemented in the future Case execution.

6、 Radiation safety permit

The enterprise has applied for radiation safety license from Wenzhou Environmental Protection Bureau. According to Article 24 of the administrative measures for safety licensing of radioisotope and radiation devices (Decree No. 31 of the State Environmental Protection Administration), the radiation safety license is valid for five years. If the term of validity expires and needs to be extended, an application for renewal shall be submitted to the original license issuing authority 30 days before the expiration of the validity period of the license. We will apply for the license in time.



Table 7 conclusion

1. From design, construction to trial operation, Zhejiang Zhangda light industry machinery factory has basically implemented the national "three Simultaneities" system for environmental protection of construction projects. In the process of project construction, the radiation protection environmental protection and the main project are designed, constructed and put into operation at the same time.

2. The radiation detection rate of each item under normal operation conditions (gb117-2015) is in line with the requirements of gb117 radiation detection room. The radiation exposure received by radiation workers and the public was lower than their dose management limits, which met the requirements of basic standard for protection against ionizing radiation and safety of radiation sources (GB 18871-2002).

3. The field inspection results show that the enterprise has formulated various radiation protection safety management systems.

4. The field inspection results show that the radiation protection management system and environmental protection measures are basically implemented. At present, the on-the-job staff (Kong Weiwei, Tian wancang, Zhang Qing) of the enterprise have participated in the radiation safety and protection training and study, and have obtained the qualification certificate to work with the certificate. The number of qualified personnel can meet the needs of radiation work.


To sum up, the construction project of X-ray flaw detection room of Zhejiang Zhangda light industrial machinery factory basically meets the acceptance conditions of environmental protection.


Acceptance group: April 10, 2018


enclosure:

1. Document of Wenzhou Environmental Protection Bureau, Wen Huan Fu [2017] No.13 letter on approval opinions of environmental impact report of industrial flaw detection device application project of Zhejiang Zhangda Light Industry Machinery Plant

2. Radiation protection test report of Zhejiang Dingqing Environmental Testing Technology Co., Ltd

3. Signature form of acceptance team members



0577-86819338

Monday to Friday 8:0-18:00 contact information
Zhejiang Zhangda Light Industry Machinery Factory

Address: NO.678, Binhai 5th Road, Wenzhou Economic and Technological Development Zone, Zhejiang Province

Company order hotline: 0577-86819338 / 86991989

Fax: 133828538

Email: chinazhangda@vip.163.com

Scan QR code + add wechat

Mobile phone station