1. Pollution factors of various pollution sources
The main pollution factors of exhaust gas provided by the owner are summarized as follows:
| Exhaust emission point | Main governance factor |
| Extruder 1 vulcanized exhaust gas | Non-methane total hydrocarbon, carbon dioxide, SO2, NOX, soot, odor concentration |
| Extruder 2 vulcanized exhaust gas | Non-methane total hydrocarbon, carbon dioxide, SO2, NOX, soot, odor concentration |
| Extrusion line 1 cured and dried | Non-methane total hydrocarbon, xylene, SO2, NOX, soot, total VOCS |
| Curing and drying of extrusion line 2 | Total non-methane hydrocarbon, SO2, NOX, soot, total VOCS |
| No. 1 extrusion line spray exhaust gas, glue exhaust gas | Non-methane total hydrocarbon, xylene, total VOCS, particulate matter |
| Spray exhaust gas on extrusion line 2 | Non-methane total hydrocarbon, xylene total, VOCS, particulate matter |
| Sawing dust | Particulate matter |
| After the process spray curing exhaust gas | Total non-methane hydrocarbon, total VOCS, particulate matter |
Second, the pollution source of exhaust gas description
There are 2 extruding lines, and the facilities and exhaust gas volume of 1 line are described in this paper. This scheme sets 1 device for each of 2 extruding lines.The sawing dust of the post-process and the spraying and curing exhaust gas of the post-process are two sets of public devices, which are one set of public devices。
1. EPDM1/2# extruded line vulcanized exhaust gas(referred to as exhaust gas treatment point A 2 sets of devices)
The sulfurized exhaust gas of the 1# extrusion line was discharged from 4 points, and a total of 8 DN200 bronchi were discharged.Two branch pipes at each point will pass through DN300's main pipe through the clean pressure box and then collect to the main pipe DN400 and pass through the induced draft fan (air volume 10000m3/h wind pressure 2000pa power 18).5KW 1) pumped to the outdoor through the device treatment of high-altitude exhaust (discharge pipe about 15 meters);
The vulcanized exhaust gas of the 2# extrusion line is discharged from 4 points，A total of 8 bronchi of DN200 were discharged.After two branch pipes at each point are turned, they pass through the DN300 master through the clean pressure box and are collected into the main pipe DN400. (This plan considers the exhaust gas pipe range from the outlet of the clean pressure box to the outlet of the equipment device，约40米，Others are provided by the owner during the installation of the equipment)，Through the induced draft fan (air volume 10000m3/h wind pressure 2000pa power 18.5KW 1) pumped to the outdoor through the device treatment of high-altitude exhaust (discharge height of about 15 meters);
2、 EPDM1/2# extrusion line solidifies drying exhaust gas(referred to as exhaust gas treatment point B 2 sets of devices)
2、 EPDM1/2# extrusion line solidifies drying exhaust gas(referred to as exhaust gas treatment point B 2 sets of devices)
There are 2 exhaust gas points generated by spraying curing drying equipment in 1# extrusion production line. A total of 2 bronchial tubes of DN200 are discharged directly to the main pipe DN400, which is passed through the induced draft fan (air volume 2000m3/h air pressure 2000pa power 4).1 set of 0KW) suction to the outdoor after the device treatment after high altitude discharge (discharge height of about 15 meters);
The exhaust gas points generated by the spray curing drying equipment in the 2# extrusion production line have 2 points，The bronchial discharge of 2 DN200 tubes is directly summarized to the main pipe DN400 (This scheme takes into account the volume of pipes discharged from the main pipe to the device，Others are provided by the owner during the installation of the equipment)，Through the induced draft fan (air volume 2000m3/h wind pressure 2000pa power 4.1 set of 0KW) suction to the outdoor after the device treatment after high altitude discharge (discharge height of about 15 meters);
6、Emergency pool
3, EPDM1/2# extrusion line spraying exhaust gas, glue exhaust gas(referred to as exhaust gas treatment point C 2 sets of devices)
The exhaust gas points produced by the 1# extrusion line are discharged from 3 points, a total of 3 DN200 bronchi;Each point 1 branch pipe DN200 is directly summarized to the main pipe DN400, through the induced draft fan (air volume 5000m3/h wind pressure 2000pa power 5.5KW 1) pumped to the outdoor after the device treatment after high altitude discharge (discharge height of about 15 meters);
The exhaust gas point produced by the 2# extrusion line consists of 3 points，A total of 3 bronchi of DN200 were discharged.One branch pipe DN200 at each point is directly summarized to the main pipe DN400 (This scheme considers the amount of pipe discharged from the main pipe to the device，Others are provided by the owner during the installation of the equipment)，Through the induced draft fan (air volume 5000m3/h wind pressure 2000pa power 5.5KW 1) pumped to the outdoor after the device treatment after high altitude discharge (discharge height of about 15 meters);
4. Sawing dust(referred to as exhaust gas treatment point D public system 1 set of devices)
This part of the dust is mainly more dust, mainly by three points need to be treated:
Exhaust point 1: There are 2 sets of cutting equipment，Each set is discharged from 2 DN100 branches，Summarize to the sub-management DN200,The exhaust gas of the two sets of equipment is respectively transferred from the two DN200 branch manifold to the main DN400 and then from the outdoor fan (about 3000m3/h air pressure 2500pa power 7).5KW 1) directly pumped to the bag dust collector after the dust removal directly discharged (consider DN700 30 meters exhaust pipe);
Exhaust point 2: C346 guide groove rear door punching equipment has 2 sets，Each set is discharged from 2 DN100 branches，Summarize to the sub-management DN200;The exhaust gas of the two sets of equipment is respectively discharged from 2 DN200 exhaust pipes after being treated by outdoor dust collector (considering DN200 40m exhaust pipe);
Exhaust point 3: C346 guide channel rear door E strip cutting and discharging platform equipment has two sets，Each set is discharged from 2 DN100 branches，Summarize to the sub-management DN200;The exhaust gas of the two sets of equipment is respectively discharged from 2 DN200 exhaust pipes after being treated by outdoor dust collector (considering DN200 50 meters exhaust pipe);
After the relevant information provided by the owner and on-site verification, the main pollution factors of this part of the exhaust gas are: particles
5, spraying curing exhaust gas after the process(referred to as exhaust gas treatment point E public system 1 set of devices)
This part of the exhaust gas is mainly due to the high content of organic matter, which needs to be treated by two main points:
Exhaust point 1: B515 front door guide groove Angle spraying equipment 1 set, collected by a DN300 exhaust pipe directly sent to the workshop after treatment equipment to discharge at high altitude;
Exhaust point 2:2 sets of C520 front door guide slot Angle spraying equipment, collected from 2 400X300 exhaust pipes, collected into 1 800X300 main pipe, directly sent to the workshop, after treatment equipment, and then discharged at high altitude (consider the collection main and external exhaust main DN600 meters;
After the relevant information provided by the owner and on-site verification, the main pollution factors of this part of the exhaust gas are: total non-methane hydrocarbon, total VOCS, particulate matter;
At the request of the owner，Construction of an underground pool of 36 cubic meters，Used to collect accident wastewater，It can switch between rain water and emergency water.The pool is built underground，And it's all concrete，The construction location is located next to the guard room of the factory，After completion，Ground vegetation should be restored，Laying bricks and planting grass;The water pool should be treated with anti-seepage and anti-leakage.Set up lift pump quick drainage and level control device，The water level observation hole is also provided，Observation hole for bearing cover plate, fence。
At the same time, the owner requires that excavation and opening should be carried out according to the demand, and the ground soil should be restored and transported to the designated area of the plant。
