CN217041941U

CN217041941U - Waste gas treatment device

Info

Publication number: CN217041941U
Application number: CN202122099214.7U
Authority: CN
Inventors: 张乐; 严迎燕
Original assignee: Guangdong Vocational College of Environmental Protection Engineering
Current assignee: Guangdong Vocational College of Environmental Protection Engineering
Priority date: 2021-09-01
Filing date: 2021-09-01
Publication date: 2022-07-26
Anticipated expiration: 2031-09-01

Abstract

The utility model discloses a waste gas treatment device, which comprises a shell, wherein the side wall of the shell is provided with a first air inlet, a second air inlet, a purified gas outlet and a waste gas outlet; the division board, it connect in the inside wall of casing, the division board will the casing internal part separates to be filtering area and clean area, be provided with adsorption structure on the division board, adsorption structure is including seting up in absorption mouth on the division board, connect in absorb intraoral adsorbed layer, first air inlet the second air inlet respectively with the filtering area is linked together, the net gas export waste gas export respectively with the clean area is linked together, the utility model discloses can adsorb the concentration to the gas that contains waste gas, also can play the effect of desorption, recycle need not to change the adsorbent, and is with low costs to waste gas is along with hot-blast exhaust gas outlet, and the desorption is thorough.

Description

Waste gas treatment device

Technical Field

The utility model relates to a processing apparatus field of waste gas, in particular to waste gas treatment device.

Background

At present, the treatment technology of the waste gas containing VOCs comprises a destruction technology and a recovery technology, wherein the destruction technology comprises a thermal destruction method, a photocatalysis method, a plasma decomposition method and a biodegradation method, and the recovery technology comprises an absorption method, an adsorption method and a condensation method. The adsorption technology of VOCs mainly comprises a fixed bed adsorber and a rotating wheel adsorber. Although the fixed bed adsorber has strong applicability, the adsorption efficiency of the adsorbent is low. In addition, the runner adsorber has the purifier of absorption and desorption, has higher efficiency to VOCs's absorption and desorption, but the runner often adsorbs and desorbs by subregion, has the shortcoming such as technology is comparatively complicated, area is big.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an exhaust treatment device to solve one or more technical problem that exist among the prior art, provide a profitable selection or create the condition at least.

The utility model provides a solution of its technical problem is: an exhaust gas treatment device comprising: the side wall of the shell is provided with a first air inlet, a second air inlet, a purified gas outlet and a waste gas outlet; the separation plate, it connect in the inside wall of casing, the separation plate will the casing internal part separates to be filtering area and purification area, be provided with adsorption structure on the separation plate, adsorption structure including set up in adsorption port on the separation plate, connect in the intraoral adsorbed layer of adsorption, first air inlet the second air inlet respectively with the filtering area is linked together, the net gas export the exhaust outlet respectively with the purification area is linked together.

The technical scheme at least has the following beneficial effects: the separation plate vertically separates the interior of the shell into a filtering area and a purifying area, the adsorption layer is arranged on the adsorption port through the separation plate, a waste gas adsorbent is filled in the adsorption layer, air with waste gas enters the filtering area through the first air inlet, when the air passes through the adsorption layer, part of the waste gas is adsorbed and concentrated by the adsorbent, clean gas enters the purifying area and is discharged from the clean gas outlet, when the adsorbent is saturated, the first air inlet and the clean gas outlet are closed, the waste gas outlet is opened, hot air is discharged into the second air inlet, when the hot air passes through the adsorption layer, the waste gas in the adsorbent is heated and decomposed, enters the purifying area along with the flow of the hot air and is finally discharged from the waste gas outlet, the utility model can adsorb and concentrate the gas containing the waste gas, can play the role of desorption, can be recycled, does not need to replace the adsorbent, has low cost, and the waste gas is discharged from the waste gas outlet along with the hot air, the desorption is complete.

As a further improvement of the above technical solution, the adsorption structure further comprises an outer support cylinder and an inner support cylinder, the outer support cylinder has a first space with an upward opening, the outer support cylinder is provided with a plurality of first through holes, the inner support cylinder has a second space with an upward opening, the inner support cylinder is provided with a plurality of second through holes, the inner support cylinder is located in the first space, a filling gap is formed between the outer support cylinder and the inner support cylinder, the first through hole and the second through hole are both communicated with the filling gap, and the adsorption layer is located in the filling gap. In the filling clearance between an outer support cylinder and the inner support cylinder, the adsorbent and the specific surface area of the first contact of air promote mass transfer efficiency, reduce the alternating frequency of adsorption and desorption, and then improve adsorption efficiency, simple structure, reliable.

As a further improvement of the technical scheme, the adsorption structure further comprises a filter bag, and the filter bag is wrapped on the outer side of the outer support cylinder. The air that contains waste gas is through filter bag and adsorbed layer in proper order for can carry out the dust to the air current earlier and filter, carry out the absorption of waste gas again, prevent that the adsorbed layer from being plugged up by the dust, improve adsorption effect, the filter bag parcel improves filter area in the outside of outer support section of thick bamboo simultaneously, and filtration efficiency is high.

As a further improvement of the above technical solution, the adsorption structure further includes a frame tube, the frame tube is disposed on the partition plate, the frame tube has a reaction chamber with an upward opening, a circumferential wall of the frame tube has a ventilation through hole, the outer support tube and the inner support tube are located in the reaction chamber, and the frame tube is located between the filter bag and the outer support tube. The framework cylinder provides a supporting function for the filter bag, the filter bag is prevented from being folded and contracted, the framework cylinder is enclosed into a reaction cavity, air flow passes through the framework cylinder through the ventilation through holes after being filtered by the filter bag and enters the reaction cavity, then the air sequentially passes through the outer supporting cylinder, the adsorption layer and the inner supporting cylinder to realize purification, the filter bag is sleeved outside the framework cylinder, so that the dust removal area can be increased, the framework cylinder also provides forward and reverse supports for the filter bag and the adsorption layer respectively, and the stability of the device in the operation process is improved.

As the further improvement of the technical scheme, the utility model discloses still include the apron, with the open-top in packing the clearance is the feed inlet, the apron can cover fit on the feed inlet. The user can add the adsorbent in toward filling the clearance through the feed inlet to the apron seals in feed inlet department, makes at absorption, desorption in-process, prevents that the adsorbent from being taken out by strong wind, improves working process stability.

As another improvement of the technical scheme, the exhaust gas outlet is arranged on the top surface of the shell. After hot-blast absorption layer and entering the purification area, continue the upflow, the waste gas outlet sets up the top surface at the casing, makes things convenient for hot-blast wrapping up in and is holding waste gas exhaust gas outlet, improves desorption effect.

As another kind of improvement of above-mentioned technical scheme, the utility model discloses still include dust collector, dust collector sets up in the purification area, dust collector includes the nozzle, the nozzle towards the filter bag. When the dust on the surface of the filter bag is accumulated to a certain degree, the dust removal device is started and air is blown out from the nozzle to reversely blow the filter bag, so that the dust falls off, the filter bag is prevented from being blocked, the service life of the filter bag is prolonged, the replacement frequency of the filter bag is reduced, and the filtering efficiency is improved.

As a further improvement of the technical scheme, the number of the filter bags and the number of the nozzles are both multiple, and one nozzle is matched with one filter bag. The quantity of filter bag is a plurality of, improves the area that the dust filtered and adsorbed waste gas, and then improves and filters and adsorption efficiency, and a nozzle corresponds the filter bag that matches on a skeleton section of thick bamboo simultaneously, improves dust removal effect.

As another improvement of the technical scheme, the side wall of the bottom of the shell is gradually closed downwards to form an ash hopper. The dust can directly drop to the ash bucket in, conveniently collects the dust, improves staff's cleaning efficiency.

As another improvement of the above technical solution, a heating device is connected to the second air inlet. When the desorption of adsorbent needs to be carried out, heating device is started, and the air is introduced to the second air inlet, so that hot air can be blown out, the device is convenient and quick, and the adsorbent does not need to be replaced.

Drawings

In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures represent only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from these figures without inventive effort.

Fig. 1 is a half sectional view of an exhaust gas treatment device according to an embodiment of the present invention;

fig. 2 is a partially enlarged view of region a in fig. 1.

In the drawings: 100-shell, 101-first air inlet, 102-second air inlet, 103-clean air outlet, 104-waste air outlet, 110-separation plate, 112-skeleton cylinder, 130-adsorption layer, 140-filtering area, 150-purifying area, 180-nozzle, 182-electric pulse component, 190-ash bucket, 210-filter bag, 220-cover plate, 230-inner support cylinder and 240-outer support cylinder.

Detailed Description

The conception, specific structure, and technical effects of the present invention will be clearly and completely described in conjunction with the embodiments and the accompanying drawings, so that the objects, features, and effects of the present invention can be fully understood. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention. In addition, all the connection relations mentioned herein do not mean that the components are directly connected, but mean that a better connection structure can be formed by adding or reducing connection accessories according to the specific implementation situation. The utility model provides an each technical feature can the interactive combination under the prerequisite of conflict each other.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If there is a description of first and second for the purpose of distinguishing technical features only, this is not to be understood as indicating or implying a relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the terms such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the terms in the present invention by combining the specific contents of the technical solution.

Referring to fig. 1, the exhaust gas treatment device includes a housing 100 having a first inlet 101, a second inlet 102, a clean gas outlet 103, and an exhaust gas outlet 104 on a sidewall thereof; the separation plate 110 is connected to the inner side wall of the casing 100, the separation plate 110 separates the inside of the casing 100 into a filtering area 140 and a purifying area 150, an adsorption structure is arranged on the separation plate 110, the adsorption structure comprises an adsorption port arranged on the separation plate 110 and an adsorption layer 130 connected to the adsorption port, the first air inlet 101 and the second air inlet 102 are respectively communicated with the filtering area 140, and the purified gas outlet 103 and the waste gas outlet 104 are respectively communicated with the purifying area 150. Specifically, the partition plate 110 vertically partitions the interior of the casing 100 into the filtering area 140 and the purifying area 150, the adsorbing layer 130 is installed on the adsorbing port through the partition plate 110, the adsorbing layer 130 is filled with a waste gas adsorbent, the air with waste gas enters the filtering area 140 through the first air inlet 101, when the air passes through the adsorbing layer 130, part of the waste gas is adsorbed and concentrated by the adsorbent, the purified gas enters the purifying area 150 and is discharged from the purified gas outlet 103, when the adsorbent is adsorbed and saturated, the first air inlet 101 and the purified gas outlet 103 are closed, the waste gas outlet 104 is opened, and hot air is discharged into the second air inlet 102, when the hot air passes through the adsorbing layer 130, the waste gas in the adsorbent is heated and decomposed, enters the purifying area 150 along with the flow of the hot air, and is finally discharged from the waste gas outlet 104, the utility model can adsorb and concentrate the gas containing the waste gas, and can also play a role of desorption, the adsorbent is recycled, the adsorbent does not need to be replaced, the cost is low, the waste gas is discharged out of the waste gas outlet 104 along with hot air, and the desorption is thorough. In fact, the second air inlet 102 can be provided with a heating device, when desorption of the adsorbent is required, the heating device is started, and air is introduced into the second air inlet 102, so that hot air can be blown out, and the adsorbent is convenient and quick and does not need to be replaced.

Moreover, in some embodiments, the adsorption structure further includes an outer support cylinder 240 and an inner support cylinder 230, the outer support cylinder 240 has a first space with an upward opening, a plurality of first through holes are provided on the outer support cylinder 240, the inner support cylinder 230 has a second space with an upward opening, a plurality of second through holes are provided on the inner support cylinder 230, the inner support cylinder 230 is located in the first space, a filling gap is formed between the outer support cylinder 240 and the inner support cylinder 230, the first through hole and the second through hole are both communicated with the filling gap, and the adsorption layer 130 is located in the filling gap. The adsorption layer 130 is arranged in the filling gap between the outer support cylinder 240 and the inner support cylinder 230, the specific surface area of the adsorbent which is in initial contact with air improves the mass transfer efficiency, reduces the alternating frequency of adsorption and desorption, and further improves the adsorption efficiency, and the structure is simple and reliable. In addition, it is understood that the first and second through holes have apertures to ensure that the adsorbent does not fall off and to ensure that the gas flow can pass through the first and second through holes, so that the gas enters or exits the adsorption layer 130. The utility model provides an exhaust gas can be VOCs.

In addition, referring to fig. 2, in some embodiments, the adsorption structure further includes a filter bag 210, and the filter bag 210 is wrapped outside the outer support cylinder 240. The air that contains waste gas passes through filter bag 210 and adsorbed layer 130 in proper order for can carry out the dust to the air current earlier and filter, carry out the absorption of waste gas again, prevent that adsorbed layer 130 from being plugged up by the dust, improve adsorption effect, filter bag 210 parcel improves filter area in the outside of outer support tube 240 simultaneously, and filtration efficiency is high. In practical applications, the filter bag 210 is a high temperature resistant dust removal cloth bag. In addition, the filter bag 210 may be glued or welded or screwed to the partition plate 110.

In fact, in order to prevent the filter bag 210 from wrinkling and contracting, which affects dust filtration, in some embodiments, the adsorption structure further includes a frame tube 112, the frame tube 112 is disposed on the partition plate 110, the frame tube 112 has a reaction chamber with an upward opening, a peripheral wall of the frame tube 112 has a ventilation through hole, the outer support tube 240 and the inner support tube 230 are located in the reaction chamber, and the frame tube 112 is located between the filter bag 210 and the outer support tube 240. The framework cylinder 112 provides a supporting function for the filter bag 210, so that the filter bag 210 is prevented from being wrinkled and shrunk, in addition, a reaction cavity is enclosed by the framework cylinder 112, after the air flow is filtered by the filter bag 210, the air flow passes through the framework cylinder 112 through the ventilation through holes and enters the reaction cavity, then the air sequentially passes through the outer support cylinder 240, the adsorption layer 130 and the inner support cylinder 230 to realize purification, in addition, the filter bag 210 is sleeved outside the framework cylinder 112, so that the dust removal area can be increased, the framework cylinder 112 also provides forward and reverse supports for the filter bag 210 and the adsorption layer 130 respectively, and the stability of the device in the operation process is improved. It should be noted that the filter bag 210 is located in the filter area 140 and wraps the outer side wall of the frame drum 112, i.e. the filter bag 210 is located below the frame drum 112 and wraps the side and bottom of the frame drum 112.

Further, in this embodiment, the utility model discloses still include apron 220, with the open-top in packing clearance is the feed inlet, apron 220 can cover fit on the feed inlet. The user can add the adsorbent through the feed inlet in toward filling the clearance to apron 220 seals in feed inlet department, makes at absorption, desorption in-process, prevents that the adsorbent from being brought out by strong wind, improves working process stability. In practical applications, the cover plate 220, the inner support cylinder 230, the outer support cylinder 240 and the frame cylinder 112 are detachably connected to the partition plate 110, and may be mounted by a screw connection. In addition, the framework cylinder 112 and the cover plate 220 are connected in a sealing manner, so that unadsorbed air is prevented from being directly discharged into the purification cavity from the filter cavity, and the adsorption effect is improved.

In addition, in some embodiments, the utility model discloses still include dust collector, dust collector sets up in purification area 150, and dust collector includes nozzle 180, and nozzle 180 is towards filter bag 210. When the dust on the surface of the filter bag 210 is accumulated to a certain degree, the dust removing device is started and air is blown out from the nozzle 180 to blow back the filter bag 210, so that the dust falls off, the filter bag 210 is prevented from being blocked, the service life of the filter bag 210 is prolonged, the replacement frequency of the filter bag 210 is reduced, and the filtering efficiency is improved. In this embodiment, the nozzle 180 faces the opening of the filter bag 210, so as to improve the dust removal effect.

Also, in order to facilitate the collection of dust, the bottom side wall of the housing 100 is gradually formed to be downwardly close to the dust hopper 190. When the nozzle 180 is blowback to remove dust, the dust can directly drop to the dust hopper 190, the dust is conveniently collected, and the cleaning efficiency of workers is improved. The dust extraction device may also include an electrical pulse assembly 182, the electrical pulse assembly 182 being in communication with the nozzle 180.

In fact, in the present embodiment, the number of the filter bags 210 and the number of the nozzles 180 are both plural, and one nozzle 180 is matched with one filter bag 210. The quantity of filter bag 210 is a plurality of, improves the area that the dust filtered and adsorbed waste gas, and then improves and filters and adsorption efficiency, and a nozzle 180 corresponds a filter bag 210 of matching simultaneously, improves the dust removal effect. Moreover, the plurality of nozzles 180 can be communicated with the electric pulse assembly 182, so that the dust removal of the plurality of filter bags 210 can be performed simultaneously.

While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the same is by way of example only and that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. An exhaust gas treatment device, characterized in that: the method comprises the following steps:

the device comprises a shell (100), a first air inlet (101), a second air inlet (102), a clean air outlet (103) and a waste air outlet (104) are formed in the side wall of the shell;

division board (110), its connect in the inside wall of casing (100), division board (110) will casing (100) internal separation is filtering area (140) and clean area (150), be provided with adsorption structure on division board (110), adsorption structure including set up in adsorption port on division board (110), connect in intraoral adsorbed layer (130) of adsorption, first air inlet (101) second air inlet (102) respectively with filtering area (140) are linked together, net gas export (103) waste gas export (104) respectively with clean area (150) are linked together.

2. An exhaust gas treatment device according to claim 1, wherein: the adsorption structure further comprises an outer supporting cylinder (240) and an inner supporting cylinder (230), wherein the outer supporting cylinder (240) is provided with a first space with an upward opening, a plurality of first through holes are formed in the outer supporting cylinder (240), the inner supporting cylinder (230) is provided with a second space with an upward opening, a plurality of second through holes are formed in the inner supporting cylinder (230), the inner supporting cylinder (230) is located in the first space, a filling gap is formed between the outer supporting cylinder (240) and the inner supporting cylinder (230), the first through holes and the second through holes are communicated with the filling gap, and the adsorption layer (130) is located in the filling gap.

3. An exhaust gas treatment device according to claim 2, wherein: the adsorption structure further comprises a filter bag (210), and the filter bag (210) is wrapped on the outer side of the outer support cylinder (240).

4. An exhaust gas treatment device according to claim 3, wherein: the adsorption structure further comprises a framework cylinder (112), the framework cylinder (112) is arranged on the partition plate (110), the framework cylinder (112) is provided with a reaction cavity with an upward opening, the peripheral wall of the framework cylinder (112) is provided with a ventilation through hole, the outer support cylinder (240) and the inner support cylinder (230) are positioned in the reaction cavity, and the framework cylinder (112) is positioned between the filter bag (210) and the outer support cylinder (240).

5. An exhaust gas treatment device according to claim 2, wherein: the packaging box is characterized by further comprising a cover plate (220), wherein the top opening of the filling gap is used as a feeding hole, and the cover plate (220) can cover the feeding hole.

6. An exhaust gas treatment device according to claim 1, wherein: the exhaust gas outlet (104) is disposed at a top surface of the housing (100).

7. An exhaust gas treatment device according to claim 3, wherein: the dust removal device is arranged in the purification area (150) and comprises a nozzle (180), and the nozzle (180) faces the filter bag (210).

8. An exhaust gas treatment device according to claim 7, wherein: the number of the filter bags (210) and the number of the nozzles (180) are multiple, and one nozzle (180) is matched with one filter bag (210).

9. An exhaust gas treatment device according to claim 1 or 7, wherein: the bottom side wall of the shell (100) gradually approaches downwards to form an ash hopper (190).

10. An exhaust gas treatment device according to claim 1, wherein: the second air inlet (102) is connected with a heating device.