CN221107406U - Multistage purification device of waste gas of moulding plastics - Google Patents
Multistage purification device of waste gas of moulding plastics Download PDFInfo
- Publication number
- CN221107406U CN221107406U CN202322479489.2U CN202322479489U CN221107406U CN 221107406 U CN221107406 U CN 221107406U CN 202322479489 U CN202322479489 U CN 202322479489U CN 221107406 U CN221107406 U CN 221107406U
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- China
- Prior art keywords
- activated carbon
- waste gas
- honeycomb activated
- chamber
- carbon adsorption
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- 239000002912 waste gas Substances 0.000 title claims abstract description 45
- 238000000465 moulding Methods 0.000 title claims abstract description 11
- 239000004033 plastic Substances 0.000 title claims abstract description 11
- 229920003023 plastic Polymers 0.000 title claims abstract description 11
- 238000000746 purification Methods 0.000 title claims abstract description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 149
- 238000001179 sorption measurement Methods 0.000 claims abstract description 67
- 238000001746 injection moulding Methods 0.000 claims abstract description 31
- 238000012856 packing Methods 0.000 claims description 7
- 229920001971 elastomer Polymers 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 claims 1
- 238000001914 filtration Methods 0.000 abstract description 12
- 239000000945 filler Substances 0.000 abstract description 11
- 239000012855 volatile organic compound Substances 0.000 abstract description 9
- 229910052799 carbon Inorganic materials 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 239000002991 molded plastic Substances 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 20
- 239000000428 dust Substances 0.000 description 9
- 239000000779 smoke Substances 0.000 description 9
- 239000002245 particle Substances 0.000 description 5
- 239000010419 fine particle Substances 0.000 description 4
- 208000005374 Poisoning Diseases 0.000 description 3
- 231100000572 poisoning Toxicity 0.000 description 3
- 230000000607 poisoning effect Effects 0.000 description 3
- 239000002344 surface layer Substances 0.000 description 3
- 208000024891 symptom Diseases 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The utility model provides a device for purifying injection molding waste gas in multiple stages, which comprises a device shell, and an air inlet and an air outlet at two ends of the shell, wherein a bag filter chamber, a first-stage honeycomb activated carbon adsorption chamber and a second-stage honeycomb activated carbon adsorption chamber are sequentially arranged in the device along the direction from the air inlet to the air outlet, a plurality of bag filters are arranged in the bag filter chamber for filtering, grooves suitable for installing the bag filters are formed in the filter chamber, multiple layers of honeycomb activated carbon adsorption layers are arranged in the first-stage honeycomb activated carbon adsorption chamber and the second-stage honeycomb activated carbon adsorption chamber for adsorbing, each layer of adsorption layer is filled with honeycomb activated carbon by a square filler frame, grooves suitable for placing the square filler frame are formed in the adsorption chamber, and openings corresponding to the positions of the bag filter chamber, the first-stage honeycomb activated carbon adsorption chamber and the second-stage honeycomb activated carbon adsorption chamber are formed in the front surface of the device for purifying injection molding waste gas in multiple stages. This multistage purification waste gas device of moulding plastics uses bag filter as preliminary treatment can effectively prolong the life of honeycomb active carbon to the double absorption of second grade honeycomb active carbon is moulded plastics VOCs composition in the waste gas, and filter and active carbon filler dismantle change convenience, filtration efficiency is good, purifying effect is good, can carry out effective treatment to the waste gas of moulding plastics of most enterprises, realizes that waste gas emission to reach standard.
Description
Technical Field
The utility model relates to the technical field of environmental protection equipment, in particular to a device for purifying injection molding waste gas in multiple stages.
Background
In recent years, the economy of China is developed at a high speed, and China becomes a large country of manufacturing industry in the world, and the injection molding industry is correspondingly developed at a high speed. With the increasing importance of environmental protection departments on pollution control, injection molding waste gas control is also an indispensable work in the treatment of air pollution in China.
In the injection molding industry, the injection molding machine can produce smoke dust fine particles and VOCs when heating and injecting glue, at present, most injection molding waste gas treatment can select activated carbon to adsorb, but the pretreatment of smoke dust particles is usually lacked to waste gas, the fine holes of activated carbon are blocked along with the increase of the smoke dust particles on the surface layer of the activated carbon, the specific surface area is reduced, the adsorption capacity of the activated carbon to the VOCs is reduced, the 'poisoning symptoms' of the activated carbon are deactivated, the adsorption service life of the follow-up activated carbon to the VOCs is greatly shortened, the replacement period is also shortened, the cost of enterprises in waste gas treatment is higher, therefore, the front filtration of smoke dust fine particles is carried out on the injection molding waste gas, the saturated replacement period of the activated carbon is prolonged while the waste gas emission achieves standard emission, and the running cost of an enterprise waste gas treatment system is reduced.
Disclosure of Invention
The utility model aims to provide a multistage injection molding waste gas purifying device which can effectively filter smoke dust particles, prolong the VOCs adsorption saturation period of active carbon, is convenient to detach filler and has good purifying effect.
In order to achieve the above purpose, the utility model provides a device for purifying injection molding waste gas in multiple stages, which comprises a shell of the device for purifying injection molding waste gas in multiple stages, and an air inlet and an air outlet at two ends of the shell, wherein a bag-type filtering chamber, a first-stage honeycomb activated carbon adsorption chamber and a second-stage honeycomb activated carbon adsorption chamber are sequentially arranged in the device for purifying injection molding waste gas in multiple stages along the direction from the air inlet to the air outlet. The utility model discloses a filter bag, including the filter bag, the filter bag is connected with the filter bag, a plurality of bag filters are arranged in the filter bag and filter, set up the recess that adapts to the installation bag filter in the filter bag, first level honeycomb activated carbon adsorption chamber and second level honeycomb activated carbon adsorption chamber set up the multilayer honeycomb activated carbon adsorption layer and adsorb, and every layer adsorption layer all fills honeycomb activated carbon with square filler frame, sets up the recess that adapts to and places square filler frame in the adsorption chamber. Openings corresponding to the positions of the bag-type filtering chamber, the first-stage honeycomb activated carbon adsorption chamber and the second-stage honeycomb activated carbon adsorption chamber are formed in the front face of the device for purifying injection molding waste gas.
Further preferably, the bag filters arranged in the bag filter chamber are primary bag filters, and the filters measure the front-rear pressure difference in real time through a pressure difference meter.
Further preferably, the groove in the bag filter chamber, which is adapted to the arrangement of the bag filter, is provided with a rapid compactor which can compact the four sides of the filter.
Further preferably, the bottom of the square filler frame used for each adsorption layer in the honeycomb activated carbon adsorption chamber is a grid frame.
Further preferably, the height of the square packing frame used by each adsorption layer in the device is more than 20cm, and 2 layers of honeycomb activated carbon are filled.
Further preferably, the multi-layer honeycomb activated carbon adsorption layer arranged in the device is provided with wind shields in a rotating way from top to bottom and left to right.
Further preferably, the opening at the corresponding position of the front surface of the device is provided with a cover plate, the left side of the cover plate is connected with the device by a rotating piece, the right side of the cover plate is fastened with the device by a plum blossom handle screw, and the periphery of the cover plate is tightly attached to the periphery of the opening by a rubber cushion layer.
The beneficial effects of the utility model are as follows: this multistage purification device of waste gas of moulding plastics carries out prefiltering treatment through combination just imitates bag filter to the smoke and dust fine particles in the waste gas of moulding plastics, and the rethread is combined the honeycomb active carbon of second grade and is adsorbed. The bag-type filtering pretreatment avoids the gradual increase of smoke dust particles on the surface layer of the activated carbon, avoids the blocking of pores of the activated carbon and the reduction of specific surface area, reduces the adsorption capacity of the activated carbon to VOCs, and leads to the deactivation of the activated carbon 'poisoning symptoms'. After the injection molding waste gas is pretreated and filtered, the injection molding waste gas enters a first-stage and second-stage honeycomb activated carbon adsorption chamber for adsorption and purification, and VOCs in the injection molding waste gas are further purified through second-stage adsorption, so that the injection molding waste gas of most enterprises can reach the emission standard.
Drawings
Fig. 1 is a schematic view of an activated carbon adsorber with filtering pretreatment according to a first embodiment.
Detailed Description
The embodiments described below are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Examples
Referring to fig. 1, the embodiment provides a device for purifying injection molding waste gas in multiple stages, which comprises an air inlet 1 and an air outlet 2 at two ends of the device, wherein the air inlet 1 is sequentially provided with a bag-type filtering chamber 3, a first-stage honeycomb activated carbon adsorption chamber 4 and a second-stage honeycomb activated carbon adsorption chamber 5 along the direction of the air outlet 2.
The device bag type filtering chamber 3, the first-stage honeycomb activated carbon adsorption chamber 4 and the second-stage honeycomb activated carbon adsorption chamber 5 are provided with openings 6, 7 and 8 at corresponding positions, the left sides of the openings 6, 7 and 8 at corresponding positions are connected with a cover plate through a rotating piece 9, rubber cushion layers are arranged around the cover plate and can be tightly attached to the periphery of the openings, and the right side of the cover plate can be fastened with the device through plum blossom handle screws 10. The bag filter chamber 3 is provided with a groove 11 which is suitable for installing the bag filter in a crisscross manner, a sealing cotton sliver is stuck on the groove 11 and is tightly attached to the periphery of the frame of the primary bag filter 12 to prevent air leakage, a plurality of primary bag filters 12 are arranged on the groove 11, and a rapid compactor 13 is arranged on the groove to compact the four sides of the frame of the bag filter 12. The multi-layer honeycomb activated carbon adsorption layers are arranged in the first-stage honeycomb activated carbon adsorption chamber 4 and the second-stage activated carbon adsorption chamber 5 for adsorption, grooves 14 for accommodating square filler frames are formed in the multi-layer honeycomb activated carbon adsorption chambers, the square filler frames 15 are used for filling honeycomb activated carbon into each layer of adsorption layer, the bottoms of the square filler frames 15 are grid frames, the grid frames are favorable for dispelling wind, and the height of each square filler frame 15 is greater than 20cm and is used for filling two layers of honeycomb activated carbon. The multi-layer honeycomb activated carbon adsorption layers in the first-stage honeycomb activated carbon adsorption chamber 4 and the second-stage honeycomb activated carbon adsorption chamber 5 are alternately provided with the wind shields 16 from top to bottom, the wind shields 16 can shunt waste gas to each layer of honeycomb activated carbon adsorption layer for adsorption, and the adsorption area of the honeycomb activated carbon is greatly increased due to the existence of the wind shields 16.
The primary bag filter in the bag filter chamber 3 is blocked by measuring the excessive pressure difference between the front and the rear of the filter through the pressure difference meter, when the bag filter 12 needs to be replaced, the quincuncial handle screw 10 of the corresponding cover plate of the opening 6 needs to be unscrewed, the cover plate is opened through the rotary piece 9 on the left side of the cover plate, the quick compactor 13 on the groove 11 is loosened after the opening is carried out, the old bag filter 12 is taken out, a new filter is replaced, and the quick compactor 13 on the groove 11 is compacted. The cover plate is closed by a rotating piece 9 at the left side of the cover plate after the pressing, and then the corresponding plum blossom handle screw 10 is screwed.
When the honeycomb activated carbon in the first-stage honeycomb activated carbon adsorption chamber 4 and the second-stage honeycomb activated carbon adsorption chamber 5 is saturated and needs to be replaced, the plum handle screws 10 of the cover plates corresponding to the openings 7 and 8 are unscrewed, the cover plates are opened through the rotary piece 9 on the left side of the cover plates, the square packing frame 15 filled with old honeycomb activated carbon is pulled out from the groove 14 after the cover plates are opened, and the square packing frame 15 filled with new honeycomb activated carbon is placed on the groove 14 after the new honeycomb activated carbon is replaced. After replacement, the cover plate is closed by a rotating piece 9 on the left side of the cover plate, and then the corresponding plum blossom handle screw 10 is screwed.
The device for purifying injection molding waste gas in multiple stages utilizes the bag type filtering chamber 3 to perform pre-filtering treatment on smoke dust fine particles on the injection molding waste gas, can avoid gradual increase of smoke dust particles on the surface layer of the activated carbon, and avoid blocking of pores and reduction of specific surface area of the activated carbon, so that the adsorption capacity of the activated carbon on VOCs is reduced, and the activated carbon loses activity of poisoning symptoms. After the injection molding waste gas is pretreated and filtered, the injection molding waste gas enters the first-stage honeycomb activated carbon adsorption chamber 4 and the second-stage honeycomb activated carbon adsorption chamber 5 for secondary activated carbon adsorption, VOCs in the injection molding waste gas are further purified through secondary adsorption, the adsorption area of the honeycomb activated carbon is greatly increased by utilizing the wind shield 16, and the adsorption and filtration wind speed is reduced. The device can enable most enterprises to realize standard emission of injection molding waste gas.
The above disclosure is only a preferred embodiment of the present utility model, and it is not intended to limit the scope of the claims, so that the utility model is not limited to the specific embodiments described herein.
Claims (7)
1. The utility model provides a multistage purification device of waste gas of moulding plastics, includes the shell of the device of multistage purification waste gas of moulding plastics to and an air intake and an air outlet at shell both ends, its characterized in that, multistage purification waste gas of moulding plastics sets gradually a bag filter chamber, a first level honeycomb activated carbon adsorption chamber, a second level honeycomb activated carbon adsorption chamber along air intake to air outlet direction in the device of the waste gas of moulding plastics, a plurality of bag filters of arranging in the bag filter chamber filter, set up the recess that adapts to the installation bag filter in the filter chamber, first level honeycomb activated carbon adsorption chamber and second level honeycomb activated carbon adsorption chamber set up the multilayer honeycomb activated carbon adsorption layer and adsorb, every layer adsorption layer all loads the honeycomb activated carbon with square packing frame, set up the recess that adapts to and place square packing frame in the adsorption chamber, the trompil with filter chamber, first level honeycomb activated carbon adsorption chamber, second level honeycomb activated carbon adsorption chamber correspond the position is all offered to the device front of the multistage purification waste gas of moulding plastics.
2. The apparatus for multistage purification of injection molding exhaust gas according to claim 1, wherein the bag filters disposed in the bag filter chamber are primary bag filters, and the filters measure the front-rear pressure difference thereof in real time by a differential pressure gauge.
3. The device for purifying injection molding waste gas in multiple stages according to claim 1, wherein the grooves of the bag filter in the bag filter chamber, which are adapted to the arrangement of the bag filter, are provided with quick compactors for compacting four sides of the filter.
4. The device for purifying injection molding waste gas in multiple stages according to claim 1, wherein the bottom of a square packing frame used for each adsorption layer in the honeycomb activated carbon adsorption chamber is a grid frame.
5. The device for purifying injection molding waste gas in multiple stages according to claim 1, wherein the height of the square packing frame used for each adsorption layer in the device is more than 20cm, and 2 layers of honeycomb activated carbon are filled.
6. The device for purifying injection molding waste gas in multiple stages according to claim 1, wherein the multi-layer honeycomb activated carbon adsorption layer is arranged in the device, and wind shields are arranged alternately from top to bottom and left to right.
7. The device for purifying injection molding waste gas in multiple stages according to claim 1, wherein the openings at the corresponding positions on the front of the device are provided with cover plates, the left sides of the cover plates are connected with the device by rotating pieces, the right sides of the cover plates are fastened with the device by plum blossom handle screws, and the peripheries of the cover plates are tightly attached to the peripheries of the openings by rubber cushion layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322479489.2U CN221107406U (en) | 2023-09-13 | 2023-09-13 | Multistage purification device of waste gas of moulding plastics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322479489.2U CN221107406U (en) | 2023-09-13 | 2023-09-13 | Multistage purification device of waste gas of moulding plastics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221107406U true CN221107406U (en) | 2024-06-11 |
Family
ID=91340406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322479489.2U Active CN221107406U (en) | 2023-09-13 | 2023-09-13 | Multistage purification device of waste gas of moulding plastics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221107406U (en) |
-
2023
- 2023-09-13 CN CN202322479489.2U patent/CN221107406U/en active Active
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