CN219252122U

CN219252122U - High-temperature volatile particulate matter waste gas treatment equipment

Info

Publication number: CN219252122U
Application number: CN202320228659.7U
Authority: CN
Inventors: 罗松; 胥可乐; 帅波; 张波; 杨小梅; 蒋玺涛; 王妍
Original assignee: Chengdu Huayu Environmental Protection Co ltd
Current assignee: Chengdu Huayu Environmental Protection Co ltd
Priority date: 2023-02-15
Filing date: 2023-02-15
Publication date: 2023-06-27
Anticipated expiration: 2033-02-15

Abstract

The utility model relates to the technical field of waste gas treatment, and provides high-temperature volatile particulate matter waste gas treatment equipment which comprises a bag-type dust collector, an alkali powder injection system and a water gas atomization system, wherein an air inlet and an air outlet are formed in the bag-type dust collector, a filter bag is arranged in the bag-type dust collector, the water gas atomization system is aligned with the air inlet, and the alkali powder injection system is arranged between the air inlet and the filter bag. According to the utility model, the alkali powder injection system and the water atomization system are additionally arranged on the basis of the bag-type dust collector, so that the temperature of the waste gas is reduced by utilizing atomized water, the speed of condensing partial substances in the waste gas into particles is increased, and meanwhile, the alkali powder injection system injects the alkali powder into the bag-type dust collector, so that the particles formed by condensation in the waste gas are coated by utilizing the alkali powder, the risk of pasting a filter bag when the filter bag filters the particles can be effectively reduced, the treatment effect on the waste gas is improved, and the service life of the filter bag is prolonged.

Description

High-temperature volatile particulate matter waste gas treatment equipment

Technical Field

The utility model relates to the technical field of waste gas treatment, in particular to high-temperature volatile particulate matter waste gas treatment equipment.

Background

In the granulating and molding stage of the plastic industry, resin particles need to be extruded through high-temperature melting and screw mixing, and under the high-temperature condition, small molecules in the resin particles volatilize to form high-temperature volatile gas, and the high-temperature volatile gas can be coagulated again after the temperature is reduced to form particles with certain viscosity, so that the blockage of subsequent waste gas treatment equipment, discharge pipelines and other equipment is easily caused. In addition, such problems also exist in the industries of lithium batteries, asphalt, and the like.

At present, most enterprises still adopt modes such as leaching and cloth bag dust collectors or direct combustion to treat the waste gas, however, due to limited treatment effect of leaching on the waste gas, in the water washing and cooling process, the pipeline and the leaching tower can be blocked by condensed particles in the waste gas, in addition, when the partially condensed particles in the waste gas pass through the cloth bag dust collectors, the condition that the filter bag of the cloth bag dust collectors is stuck with paste is extremely easy to cause, the waste gas treatment effect is poor and the service life of the filter bag is influenced. Meanwhile, most of the waste gas is high-boiling point organic matters, has higher heat value and certain utilization value, so that the waste of resources is caused by adopting direct combustion and other modes for treatment, and the discharge amount of carbon dioxide and nitrogen oxides in the atmosphere can be increased by combustion.

Disclosure of Invention

The utility model aims to provide high-temperature volatile particulate waste gas treatment equipment, which at least solves the technical problems that the filter bag is easy to paste when a leaching mode is combined with a bag-type dust remover to treat high-temperature volatile gas generated in the plastic production process, the waste gas treatment effect is poor and the service life of the filter bag is influenced.

The aim of the utility model is achieved by the following technical scheme:

the utility model provides a high temperature volatilized particulate matter exhaust-gas treatment equipment, includes sack cleaner, alkali powder injection system and aqueous vapor atomizing system, be provided with air intake and air outlet on the sack cleaner, the inside of sack cleaner is provided with the filter bag, aqueous vapor atomizing system is counterpointed with the air intake, aqueous vapor atomizing system is used for spouting atomized water to the inside of sack cleaner, alkali powder injection system sets up between air intake and filter bag, alkali powder injection system is used for spouting alkaline powder to the sack cleaner inside.

In some possible embodiments, the bag-type dust collector sequentially comprises an upper box body, a middle box body and a hopper from top to bottom, the filter bag is arranged inside the upper box body, the air inlet is arranged on the middle box body, the air outlet is arranged on the upper box body, the alkali powder injection system is arranged at the middle box body, and a discharge opening is formed in the bottom of the hopper.

In some possible embodiments, the alkali powder injection system comprises a storage tank, a feeding pipe and an injector, wherein a feeding device is arranged in the storage tank, one end of the feeding pipe is communicated with the output end of the feeding device, and the other end of the feeding pipe horizontally extends to the inside of the bag-type dust collector;

the sprayer sets up in the inside of sack cleaner, sprayer and conveying pipe intercommunication, the output of sprayer deviates from the filter bag setting.

In some possible embodiments, the number of the ejectors is plural, and the ejectors are uniformly arranged along the width direction of the bag-type dust collector.

In some possible embodiments, the alkaline powder is one of a calcium oxide powder, a sodium hydroxide powder, or a sodium carbonate powder.

In some possible embodiments, the water vapor atomizing system comprises an atomizer, an atomizing pipeline and an atomizing nozzle, wherein the atomizer is arranged outside the dust remover, the atomizing nozzle is arranged inside the bag-type dust remover and is aligned with the air inlet, and the atomizing nozzle is communicated with the output end of the atomizer through the atomizing pipeline.

The technical scheme of the embodiment of the utility model has at least the following advantages and beneficial effects:

according to the high-temperature volatile particulate matter waste gas treatment equipment provided by the utility model, the alkali powder injection system and the water atomization system are additionally arranged on the basis of the bag-type dust collector, so that the temperature of waste gas is reduced by utilizing atomized water, the speed of condensing partial substances in the waste gas into particulate matters is increased, and meanwhile, the alkali powder injection system injects the alkali powder into the bag-type dust collector, so that the particulate matters formed by condensation in the waste gas are coated by utilizing the alkali powder, the risk of filter bag pasting when the filter bags filter the particulate matters can be effectively reduced, the treatment effect on the waste gas is improved, and the service life of the filter bags is prolonged.

Drawings

Fig. 1 is a schematic structural diagram of a high-temperature volatile particulate exhaust treatment device according to an embodiment of the present utility model.

Icon: 10-bag dust collector, 10 a-air inlet, 10 b-air outlet, 10 c-discharge opening, 11-filter bag, 12-upper box, 13-middle box, 14-hopper, 20-alkali powder injection system, 21-storage tank, 22-feeding pipe, 23-injector, 30-aqueous vapor atomizing system, 31-atomizer, 32-atomizing pipeline, 33-atomizer.

Detailed Description

Examples

Referring to fig. 1, the present embodiment provides a high-temperature volatile particulate waste gas treatment device, so as to at least overcome the technical problems that the filter bag 11 is prone to pasting bags, the treatment effect on waste gas is poor and the service life of the filter bag 11 is affected when the conventional leaching method is combined with the bag-type dust collector 10 to treat high-temperature volatile gas (hereinafter referred to as "waste gas") generated in the plastic production process. Specifically, the high-temperature volatilized particulate matter exhaust gas treatment device comprises a bag-type dust collector 10, an alkali powder injection system 20 and a water vapor atomization system 30.

In this embodiment, the bag-type dust collector 10 is used for filtering out particulate matters formed by condensation in the exhaust gas, so as to achieve the purpose of filtering the exhaust gas. Wherein, in combination with what the fig. 1 shows, be provided with air intake 10a and air outlet 10b on the sack cleaner 10, this air intake 10a is as the import of waste gas to make waste gas can get into the inside of sack cleaner 10 via air intake 10a, at this moment, the inside of sack cleaner 10 is provided with a plurality of filter bags 11, with the particulate matter that condenses in filtering waste gas through filter bag 11, and filter bag 11 and air outlet 10b are counterpoint, so that the waste gas after the filtration can be discharged through air outlet 10b, be favorable to follow-up further processing to waste gas.

It should be noted that, in this embodiment, the filter bag 11 disposed in the bag-type dust collector 10 is preferably a filter bag 11 having an oil-proof and water-proof function, so as to further improve the filtering effect when the filter bag 11 is used to filter out particles formed by condensation in the exhaust gas.

Specifically, with continued reference to fig. 1, the bag-type dust collector 10 sequentially includes, from top to bottom, an upper box 12, a middle box 13 and a hopper 14, the filter bags 11 are disposed inside the upper box 12, and a plurality of filter bags 11 disposed in the upper box 12 are periodically and uniformly distributed, an air inlet 10a is disposed on the middle box 13, that is, the air inlet 10a is disposed on one side of the middle box 13 and is communicated with the middle box 13, an air outlet 10b is disposed on the upper box 12, that is, the air outlet 10b is disposed on one side of the upper box 12 and is communicated with the upper box 12, at this time, the air outlet 10b is aligned with the filter bags 11, and the air outlet 10b is disposed opposite to the air inlet 10a, and a discharge opening 10c is disposed at the bottom of the hopper 14, so that when the particulate matters collected in the hopper 14 reach a certain amount, the discharge opening 10c is opened to perform centralized treatment on the particulate matters.

In this embodiment, the alkali powder spraying system 20 is used for spraying alkali powder into the bag-type dust collector 10, so that the alkali powder can cover the particulate matters formed by condensation in the exhaust gas, thereby reducing the risk of the particulate matters causing the filter bag 11 to stick with the bag as much as possible, and further improving the treatment effect on the exhaust gas and the service life of the filter bag 11 to a certain extent. It will be appreciated that the alkaline powder may be, but is not limited to, one of calcium oxide powder, sodium hydroxide powder or sodium carbonate powder to enhance the coating effect of the alkaline powder on the particulate matter formed by condensation in the exhaust gas.

Wherein, in combination with what is shown in fig. 1, the alkali powder injection system 20 is disposed between the air inlet 10a and the filter bag 11, specifically, the alkali powder injection system 20 is disposed at the middle box 13 to inject the alkali powder into the region of the inside of the bag-type dust collector 10 below the filter bag 11 through the alkali powder injection system 20.

Specifically, with continued reference to fig. 1, the alkali powder injection system 20 includes a storage tank 21, a feed pipe 22, and an injector 23, where the storage tank 21 is used for temporarily storing alkali powder, and a feed device (not shown in the drawing) is disposed inside the storage tank 21, and the feed device may be, but is not limited to, a feed pump, one end of the feed pipe 22 is communicated with an output end of the feed device, and the other end of the feed pipe 22 horizontally extends into the bag-type dust collector 10. Meanwhile, the ejector 23 is disposed inside the bag-type dust collector 10, specifically, the ejector 23 is disposed in the middle box 13, and the ejector 23 is communicated with the feed pipe 22, and the output end of the ejector 23 is disposed away from the filter bag 11, i.e., the output end of the ejector 23 is directed toward the hopper 14.

So set up, before the treatment waste gas or the in-process of treating waste gas, utilize the conveying device to carry the alkaline powder that stores in the storage tank 21 to sprayer 23 through conveying pipe 22, the alkaline powder sprays in the middle part box 13 of sack cleaner 10 through sprayer 23 afterwards, this moment partly alkaline powder adhesion is on the inner wall of the middle part box 13 of sack cleaner 10 and hopper 14, can avoid the particulate matter that the condensation formed in the waste gas to directly contact with the inner wall of sack cleaner 10, thereby avoid appearing the particulate matter adhesion and lead to the problem that later stage is difficult to clear up in the inside of sack cleaner 10 to appear. Meanwhile, when the waste gas enters the bag-type dust collector 10, particles formed by condensation in the waste gas are contacted with the alkaline powder, so that the particles are coated by the alkaline powder, the filtering effect of filtering the particles by the filter bag 11 is improved, the risk that the filter bag 11 is stuck with the sticky particles is reduced, and the service life of the filter bag 11 is effectively prolonged.

In order to make the distribution of the alkaline powder sprayed by the sprayers 23 inside the bag-type dust collector 10 more uniform, as shown in fig. 1, the number of sprayers 23 disposed inside the middle box 13 of the bag-type dust collector 10 in this embodiment is plural, and the sprayers 23 are uniformly arranged along the width direction of the bag-type dust collector 10, in actual use, the alkaline powder sprayed by the sprayers 23 can cover all the areas of the middle box 13 of the bag-type dust collector 10, so that the particulate matters formed by condensation in the exhaust gas can be more fully contacted with the alkaline powder.

In this embodiment, in combination with the content shown in fig. 1, the water vapor atomization system 30 is disposed at the middle box 13 of the bag-type dust collector 10 and aligned to the air inlet 10a, so that atomized water is sprayed into the bag-type dust collector 10 through the water vapor atomization system 30, and thus the exhaust gas introduced into the bag-type dust collector 10 from the air inlet 10a can be cooled down rapidly, and small molecules in the exhaust gas can be coagulated again rapidly to form particles with a certain viscosity, which is beneficial to filtering out the particles formed by condensation in the exhaust gas through the cooperation of the alkaline injection system 20 and the filter bag 11.

Specifically, with continued reference to fig. 1, the water vapor atomizing system 30 includes an atomizer 31, an atomizing pipeline 32 and an atomizing nozzle 33, the atomizer 31 is disposed outside the dust collector 10 to continuously generate atomized water through the atomizer 31, the atomizing nozzle 33 is disposed inside the dust collector 10 and aligned with the air inlet 10a, specifically, the atomizing nozzle 33 is disposed in the center of the middle box 13 of the dust collector 10, the exhaust gas introduced into the dust collector 10 through the air inlet 10a can directly contact with the atomized water sprayed by the atomizing nozzle 33, the atomizing nozzle 33 is communicated with the output end of the atomizer 31 through the atomizing pipeline 32, so that the atomized water generated by the atomizer 31 is sprayed into the dust collector 10 through the atomizing nozzle 33, after the exhaust gas contacts with the atomized water, the temperature of the exhaust gas is rapidly reduced, and small molecules in the exhaust gas are rapidly condensed and form particles with a certain viscosity.

It can be understood that the atomizing nozzle 33 in this embodiment is a rotary nozzle, and the atomizing nozzle 33 is located at the center of the bag-type dust collector 10, so as to increase the coverage area of atomized water sprayed by the atomizing nozzle 33 as much as possible, so that waste gas introduced into the bag-type dust collector 10 from the air inlet 10a can be more fully contacted with the atomized water, and an atomization dead angle is avoided. Meanwhile, an atomization adjusting valve (not shown) is provided on the atomization line 32 so as to adjust the amount of atomized water sprayed into the bag-type dust collector 10 by the atomization adjusting valve.

It should be noted that, in practical implementation, the amount of atomized water sprayed into the bag-type dust collector 10 through the atomized spray nozzles 33 should be reasonably controlled, so that the amount of atomized water sprayed by the atomized spray nozzles 33 is adapted to the amount of exhaust gas flowing into the bag-type dust collector 10, for example, when more exhaust gas flows into the bag-type dust collector 10, the amount of atomized water sprayed by the atomized spray nozzles 33 can be properly increased, whereas when less exhaust gas flows into the bag-type dust collector 10, the amount of atomized water sprayed by the atomized spray nozzles 33 should be properly reduced, so that the problem that the subsequent filtering effect on the particles is affected due to the fact that the temperature of the exhaust gas can be rapidly reduced, and small molecules in the exhaust gas can be rapidly condensed and form particles with certain viscosity is avoided as much as possible on the basis that the atomized water in the bag-type dust collector 10 is too much, and the environment inside the bag-type dust collector 10 becomes water drop.

In order to more clearly and intuitively understand the high-temperature volatile particulate matter exhaust gas treatment device provided in this embodiment, the working principle of the high-temperature volatile particulate matter exhaust gas treatment device will be further described below.

Firstly, before the exhaust gas is introduced into the inside of the bag-type dust collector 10, the alkaline powder may be sprayed onto the inner wall of the bag-type dust collector 10 by the alkaline powder spraying system 20 in advance, specifically, the alkaline powder in the storage tank 21 is conveyed to the sprayer 23 through the conveying pipe 22 by the conveying device, and the alkaline powder is sprayed into the inside of the bag-type dust collector 10 through the sprayer 23, so that the alkaline powder adheres to the inner wall of the bag-type dust collector 10.

In the waste gas treatment stage, waste gas to be treated enters the inside of the bag-type dust collector 10 through the air inlet 10a, in the process, the atomizer 31 in the water-gas atomization system 30 generates atomized water, the atomized water reaches the atomization nozzle 33 through the atomization pipeline 32 and is sprayed out through the atomization nozzle 33, at the moment, the waste gas is fully contacted with the atomized water, the temperature of the waste gas is rapidly reduced, small molecules in the waste gas are re-condensed and form particles with certain viscosity, alkaline powder is sprayed in advance on the basis of the inner wall of the bag-type dust collector 10, and therefore the particles formed by condensation in the waste gas are not directly contacted with the inner wall of the bag-type dust collector 10, and the problem that the particles are adhered to the inner wall of the bag-type dust collector 10 and are difficult to clean in the later stage is avoided as much as possible.

Meanwhile, the alkaline powder spraying system 20 continuously sprays alkaline powder into the bag-type dust collector 10, and the alkaline powder adheres to the surface of the particles due to the fact that the particles formed by condensation in the exhaust gas have certain viscosity, so that the particles are coated by the alkaline powder, when the exhaust gas carries the particles upwards to the position of the filter bag 11, the particles coated by the alkaline powder remain on the filter bag 11 under the filtering effect of the filter bag 11, the filtered exhaust gas is discharged from the air outlet 10b, and the phenomenon of pasting bags of the filter bag 11 can be effectively avoided due to the fact that the surface of the particles is coated with the dry alkaline powder, and the service life of the filter bag 11 is prolonged on the basis of improving the treatment effect on the exhaust gas.

In summary, the high-temperature volatile particulate matter waste gas treatment device provided in this embodiment adds the alkali powder injection system 20 and the water vapor atomization system 30 on the basis of the bag-type dust collector 10 to reduce the temperature of the waste gas by utilizing atomized water and accelerate the condensation of partial substances in the waste gas into particulate matters, and meanwhile, the alkali powder injection system 20 injects the alkali powder into the bag-type dust collector 10, so that the particulate matters formed by condensation in the waste gas are covered by the alkali powder, the risk of pasting bags of the filter bags 11 when the filter bags 11 filter the particulate matters can be effectively reduced, and the treatment effect on the waste gas and the service life of the filter bags 11 can be improved.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a high temperature volatilized particulate matter exhaust-gas treatment equipment, its characterized in that includes sack cleaner, alkali powder injection system and aqueous vapor atomizing system, be provided with air intake and air outlet on the sack cleaner, the inside of sack cleaner is provided with the filter bag, aqueous vapor atomizing system is counterpointed with the air intake, aqueous vapor atomizing system is used for spouting atomized water to the inside of sack cleaner, alkali powder injection system sets up between air intake and filter bag, alkali powder injection system is used for spouting alkaline powder to the inside of sack cleaner.

2. The high-temperature volatile particulate waste gas treatment device according to claim 1, wherein the bag-type dust collector sequentially comprises an upper box body, a middle box body and a hopper from top to bottom, the filter bag is arranged in the upper box body, the air inlet is formed in the middle box body, the air outlet is formed in the upper box body, the alkali powder injection system is arranged at the middle box body, and a discharge opening is formed in the bottom of the hopper.

3. The high-temperature volatile particulate waste gas treatment equipment according to claim 1, wherein the alkali powder injection system comprises a storage tank, a feed pipe and an injector, wherein a feed device is arranged in the storage tank, one end of the feed pipe is communicated with the output end of the feed device, and the other end of the feed pipe horizontally extends into the bag-type dust collector;

4. The high-temperature volatile particulate matter exhaust gas treatment apparatus according to claim 3, wherein the number of the injectors is plural, and the plurality of the injectors are uniformly arranged in the width direction of the bag-type dust collector.

5. The high temperature volatile particulate exhaust treatment device of claim 1, wherein the alkaline powder is one of calcium oxide powder, sodium hydroxide powder, or sodium carbonate powder.

6. The high-temperature volatile particulate waste gas treatment device according to claim 1, wherein the water-air atomization system comprises an atomizer, an atomization pipeline and an atomization nozzle, the atomizer is arranged outside the dust remover, the atomization nozzle is arranged inside the bag-type dust remover and is aligned with the air inlet, and the atomization nozzle is communicated with the output end of the atomizer through the atomization pipeline.