CN213713082U - Domestic waste pyrolysis gas cleaning device - Google Patents

Abstract

The utility model discloses a household garbage pyrolysis flue gas purification device, which comprises a box body, a first air inlet pipe at the bottom of the side surface of the box body, an exhaust pipe at the top of the box body, a first clapboard, a second clapboard and a third clapboard which are sequentially arranged from the bottom to the top on the inner side surface of the box body, wherein the box body is divided into a first treatment layer, a second treatment layer, a third treatment layer and a fourth treatment layer; a cleaning assembly is arranged in the first treatment layer, the cleaning assembly comprises a U-shaped upward bottom plate tightly attached to the inner bottom surface of the box body, a top plate tightly attached to the first partition plate and a plurality of partition layers connected with the top plate and the bottom plate, and a U-shaped groove is formed in one end of each partition layer; the second treatment layer is filled with adsorption particles; the third treatment layer is provided with a liquid outlet on the side surface of the box body, and the top of the third treatment layer is provided with a spray head which is connected with a liquid inlet pipe. The utility model avoids the pipeline blockage by additionally arranging the filter sleeve in the first air inlet pipe; the arranged cleaning component can clean tar in the smoke; in addition, the acidic substance components in the smoke can be fully adsorbed.

Description

Domestic waste pyrolysis gas cleaning device

Technical Field

The utility model belongs to the technical field of flue gas purification, concretely relates to domestic waste pyrolysis gas cleaning device.

Background

The domestic waste pyrolysis flue gas is a multi-component pollutant that collection dust tar and harmful gas are complicated in an organic whole composition that has foul smell, and the flue gas temperature that burns the production is higher, if only spray with the water of normal atmospheric temperature and remove dust, can lead to the dust collection efficiency low, and the flue gas of high temperature can cause the damage of pipeline and equipment, and contains corrosive substance in the flue gas, causes the corruption to equipment easily.

The components of the flue gas are complex and can be generally divided into gaseous pollutants, particulate pollutants, heavy metal pollutants and semi-solid tar components. The gaseous pollutants mainly comprise SO2, NOX, HCl, HF, H2S, NH3 and the like, and all the gaseous pollutants are derived from the combustion of all the components of the garbage; the particle pollutants mainly refer to fly ash and combustion products and the like generated by non-combustible substances in the combustion process; the heavy metal compound generally consists of metal oxides and salts contained in the garbage, and mainly comprises trace harmful elements such as mercury, cadmium, lead and the like; the semi-solid tar is mainly aromatic hydrocarbon compounds, chain hydrocarbons, oxygen-containing functional group organic matters and the like. Most of conventional garbage pyrolysis flue gas treatment devices are used for directly treating gas and particle pollutants, and the treatment of tar is less and less related. However, the tar has a high viscosity and is easily adhered to the pipeline or the pipe wall of the treatment device, so that the pipeline is blocked, and the service life of the device is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a domestic waste pyrolysis gas cleaning device to solve the above-mentioned problem.

In order to solve the technical problem, the utility model discloses a following technical scheme:

a household garbage pyrolysis flue gas purification device comprises a box body, a first air inlet pipe arranged at the bottom of the side face of the box body, an exhaust pipe arranged at the top of the box body, and a first partition plate, a second partition plate and a third partition plate which are arranged on the inner side face of the box body in sequence from bottom to top; the first partition plate, the second partition plate and the third partition plate divide the box body into a first treatment layer, a second treatment layer, a third treatment layer and a fourth treatment layer from the bottom to the top in sequence; the first treatment layer is internally provided with a cleaning assembly and a second air inlet pipe arranged on the first partition plate, the cleaning assembly comprises a U-shaped bottom plate tightly attached to the inner bottom surface of the box body, a top plate tightly attached to the first partition plate and a plurality of partition layers connected with the top plate and the bottom plate, and one end of each partition layer is provided with a U-shaped groove; the side surface of the first treatment layer is provided with an installation door for dismounting the cleaning assembly; the second treatment layer is internally provided with adsorption particles, a material port is arranged on the side surface of the second treatment layer, so that the adsorption particles can be conveniently loaded and unloaded, and the second partition plate is provided with a third air inlet pipe; a liquid outlet provided with a valve is formed in the side face of the box body of the third treatment layer, a spray head is arranged at the top of the third treatment layer, the spray head is connected with a liquid inlet pipe provided with the valve, and a fourth air inlet pipe is arranged on the third partition plate; the exhaust pipe can be connected with the bag type dust collector to further purify the flue gas. The first treatment layer is mainly used for cleaning tar components in the smoke, and the cleaning assembly is arranged in a detachable mode, so that the device can be detached to clean tar and other components adhered to the device after being used for a period of time; the second treatment layer is provided with adsorption particles which can absorb organic matter components in the flue gas and prevent the organic matter from entering the third treatment layer to pollute the solution and influence the treatment effect; the third treatment layer is mainly used for treating acidic substance components in the flue gas, and the alkaline solution sprayed from the spray head can be subjected to neutralization reaction with the acidic substance in the flue gas, so that the flue gas is further purified; the fourth treatment layer can further adsorb the residual components in the flue gas, thereby ensuring the purification effect.

Furthermore, a hollow filter sleeve with two open ends is arranged in the first air inlet pipe, a hanging lug is arranged on the filter sleeve, and the hanging lug can be inserted into a pore channel on the pipe wall of the first air inlet pipe and fixed by screwing a screw arranged on the pipe wall of the first air inlet pipe. The filter sleeve arranged in the first air inlet pipe can enable adhesive components such as tar in the smoke to be adhered to the filter screen, the filter sleeve is disassembled and replaced according to the using condition, and the adhesive substances on the filter sleeve are removed, so that the first air inlet pipe is prevented from being blocked.

Furthermore, the interlayer is arranged in a staggered manner, namely one U-shaped groove of each two adjacent interlayers is connected with the top plate, and the other U-shaped groove of each two adjacent interlayers is connected with the bottom plate; the interlayer is provided with a bulge, and the bulge is provided with concave grains or convex grains. The interlayer is arranged in a staggered manner, so that a longer channel is formed in the first treatment layer, and the flue gas enters and exits through the U-shaped groove, so that the passing distance and time of the flue gas are prolonged. The interlayer is provided with the bulges with the concave lines or the convex lines, so that the surface area of the interlayer can be increased, and substances such as tar in smoke can be favorably adhered to the interlayer.

Furthermore, the inner part of each interlayer is hollow, the adjacent interlayers are connected through a pipeline, and the two interlayers positioned on the outer sides are respectively connected with a water inlet pipe and a water outlet pipe; the water inlet pipe is connected with the water outlet pipe through the water inlet pipe, the water outlet pipe is connected with the water inlet pipe through the water outlet pipe, and the water inlet pipe and the water outlet pipe are provided with valves. The interlayer is hollow, water can circulate in the interlayer, water entering and exiting can flow circularly through the water inlet pipe and the water outlet pipe, so that the temperature of the flue gas is reduced, and substances such as tar can be adhered to the interlayer as much as possible in the process of entering and exiting the flue gas.

Furthermore, a fourth clapboard is arranged in the third treatment layer, the fourth clapboard is respectively connected with the second clapboard and the third clapboard, the third treatment layer is divided into an outer layer area and an inner layer area by the fourth clapboard, and the inner layer area comprises a spray head and a third air inlet pipe. The spray head and the third air inlet pipe are arranged on the inner layer, so that the solution sprayed by the spray head is in contact with the smoke flowing out of the third air inlet pipe.

Further, the third air inlet pipe comprises a cover plate covering the top of the third air inlet pipe, the cover plate is conical, the diameter of the bottom surface of the cone is larger than that of the third air inlet pipe, a plurality of round holes are formed in the upper end of the side face of the third air inlet pipe, and the round holes are distributed in positions above 1/3 of the height of the third air inlet pipe. The cover plate arranged on the third air inlet pipe can prevent the alkali solution sprayed on the spray head from entering the pipe, and the side surface of the third air inlet pipe is provided with a plurality of round holes which are convenient for the flue gas to flow out and can be fully contacted with the alkali solution sprayed by the spray head, so that the acid gas in the flue gas can be completely treated as much as possible; the round hole is arranged above 1/3 of the third air inlet pipe to prevent the solution accumulated in the third treatment layer from entering the third air inlet pipe when the solution has a certain height.

Further, an air supply pipe is arranged at the upper end of the fourth partition plate, is communicated with the inner layer and extends into the bottom of the outer layer, but does not contact with the second partition plate; and the bottom of the fourth clapboard is provided with a hole which is communicated with the outer layer and the inner layer. The holes connect the inner layer and the outer layer, so that the alkali solution in the inner layer can enter the outer layer, the gas pipe extends outwards from the inner layer to the bottom of the outer layer, so that the smoke can be immersed in the solution in the outer layer, the acid substances in the smoke can be completely treated, and the gas pipe can prevent the solution from entering the pipe from top to bottom.

Furthermore, the side of the fourth treatment layer is provided with a material port, so that the adsorption particles can be conveniently loaded and unloaded, the adsorption particles arranged in the fourth treatment layer are activated carbon layers, and the bottom of each activated carbon layer is also provided with an adsorption fiber layer. The adsorption fiber that the bottom set up can adsorb the moisture in the flue gas better, prevents that activated carbon adsorption from saturating, can further purify the flue gas through activated carbon adsorption again, improves purifying effect.

The utility model has the advantages that: 1. the filter sleeve arranged in the first air inlet pipe is detachable, and the particle components in the flue gas can be prevented from being adhered to the pipe wall to cause pipeline blockage by periodic dismounting and updating; 2. the cleaning assembly of the first treatment layer has the function of cooling the flue gas, and substances such as tar in the flue gas can be adhered to the cleaning assembly by using the plurality of raised interlayers, and then the adhered tar can be cleaned by dismounting the cleaning assembly, so that the tar is prevented from being adhered to the inner wall of the pipeline of the box body, the treatment effect is prevented from being influenced, and the service life of the device is prolonged; 3. the second treatment layer is internally provided with adsorption particles which can adsorb organic matters and other components in the flue gas, so that the organic components in the flue gas are prevented from influencing the next treatment; 4. the third treatment layer is sprayed with alkaline solution to treat acidic components in the flue gas, the third treatment layer is designed into a structure of an inner layer and an outer layer, the flue gas is treated in the inner layer and then enters the outer layer for further treatment, so that the flue gas treatment effect is ensured, and other flue gas treatment solutions can be added into the third treatment layer as required; 5. the flue gas after the third treatment layer is treated can have partial moisture, therefore, the adsorption fiber that sets up in fourth treatment layer bottom can adsorb the moisture in the flue gas better, then through active carbon adsorption, further purifies the flue gas.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic diagram of the novel structure.

Fig. 2 is a schematic structural view of the first air inlet pipe and the filter sleeve.

FIG. 3 is a schematic view of a purging assembly.

FIG. 4 is a schematic view of a spacer structure.

Fig. 5 is a schematic structural view of a third air inlet pipe.

Reference numerals: 1-box body, 2-first air inlet pipe, 21-filter sleeve, 22-hanging lug, 23-pore channel, 24-screw, 3-first baffle plate, 4-second baffle plate, 5-third baffle plate, 6-first treatment layer, 7-cleaning component, 70-projection, 71-water inlet pipe, 72-baffle layer, 73-pipeline, 74-water outlet pipe, 75-second air inlet pipe, 76-installation door, 77-U-shaped groove, 78-top plate, 79-bottom plate, 8-second treatment layer, 81-third air inlet pipe, 811-round hole, 812-cover plate, 9-third treatment layer, 91-hole, 92-fourth baffle plate, 93-air inlet pipe, 94-liquid outlet, 95-liquid inlet pipe and 96-spray head, 97-a fourth air inlet pipe, 98-an outer layer, 99-an inner layer, 10-a fourth treatment layer, 101-an adsorption fiber layer, 102-an activated carbon layer and 11-an exhaust pipe.

Detailed Description

In order to facilitate a better understanding of the invention, the following examples are given with reference to the accompanying drawings, which belong to the scope of protection of the invention, but do not limit the scope of protection of the invention.

Examples

As can be seen from figure 1, the device comprises a box body 1, a first air inlet pipe 2 arranged at the bottom of the side surface of the box body 1, an exhaust pipe 11 arranged at the top of the box body 1, and a first partition plate 3, a second partition plate 4 and a third partition plate 5 which are arranged on the inner side surface of the box body 1 in sequence from bottom to top; the box body 1 is divided into a first treatment layer 6, a second treatment layer 8, a third treatment layer 9 and a fourth treatment layer 10 from the bottom to the top in sequence by a first partition plate 3, a second partition plate 4 and a third partition plate 5; a removing assembly 7 and a second air inlet pipe 75 arranged on the first partition plate 3 are arranged in the first treatment layer 6, the removing assembly 7 comprises a U-shaped bottom plate 79 tightly attached to the inner bottom surface of the box body 1, a top plate 78 tightly attached to the first partition plate 3 and a plurality of partition layers 72 connected with the top plate 78 and the bottom plate 79, and one end of each partition layer 72 is provided with a U-shaped groove 77; the side surface of the first treatment layer 6 is provided with an installation door 76 for assembling and disassembling the cleaning assembly 7; the second treatment layer 8 is filled with adsorption particles, and a third air inlet pipe 81 is arranged on the second partition plate 4; the third treatment layer 9 is provided with a liquid outlet 94 on the side surface of the box body 1, the top of the third treatment layer 9 is provided with a spray head 96, the spray head 96 is connected with a liquid inlet pipe 95, and the third partition plate 5 is provided with a fourth air inlet pipe 97.

As can be seen from fig. 2, a hollow filter sleeve 21 with two open ends is disposed in the first air inlet pipe 2, a hanging lug 22 is disposed on the filter sleeve 21, and the hanging lug 22 can be inserted into a pore canal 23 on the pipe wall of the first air inlet pipe 2 and fixed by screwing a screw 24 disposed on the pipe wall of the first air inlet pipe 2.

As can be seen from fig. 3 and 4, the spacers 72 are arranged in a staggered manner, i.e. the U-shaped grooves 77 of two adjacent spacers 72 are connected to a top plate 78 and to a bottom plate 79.

The inner part of each interlayer 72 is hollow, the adjacent interlayers 72 are connected through a pipeline 73, and the two interlayers 72 positioned at the outer sides are respectively connected with a water inlet pipe 71 and a water outlet pipe 74; the end of the U-shaped groove 77 which is connected with the water inlet pipe 71 and is used as the partition 72 is connected with the water outlet pipe 74, and the end of the U-shaped groove which is connected with the water outlet pipe 74 and is used as the non-U-shaped groove end of the partition 72.

As shown in fig. 1, a fourth partition plate 92 is disposed in the third treatment layer 9, the fourth partition plate 92 is connected to the second partition plate 4 and the third partition plate 5, the fourth partition plate 92 divides the third treatment layer 9 into two regions, namely, an outer layer 98 and an inner layer 99, and the inner layer 99 includes the shower head 96 and the third air inlet pipe 81.

An air supply pipe 93 is arranged at the upper end of the fourth partition plate 92, and the air supply pipe 93 is communicated with the inner layer 99 and extends into the bottom of the outer layer 98; the bottom of the fourth partition 92 is provided with a hole 91, and the hole 91 is communicated with the outer layer 98 and the inner layer 99.

As shown in fig. 5, the third air inlet pipe 81 includes a cover 812 covering the top of the third air inlet pipe 81, the cover 812 is tapered, and a circular hole 811 is formed at the upper end of the side surface of the third air inlet pipe 81.

As shown in fig. 1, an activated carbon layer 102 is provided in the fourth treated layer 10, and an adsorption fiber layer 101 is provided at the bottom of the activated carbon layer 102.

The use principle is as follows: the filter sleeve which can be replaced and disassembled is arranged in the first air inlet pipe, so that tar and dust particles in the flue gas can be prevented from adhering to the pipe wall to cause pipeline blockage; the cleaning assembly arranged in the first treatment layer prolongs the passing distance and time of the flue gas through the interlayer, then cools the flue gas through circulating water, and the bulges on the interlayer can enable tar or dust particles in the flue gas to be adhered to the interlayer; the second treatment layer mainly adsorbs organic matters in the flue gas, so that the organic matters are prevented from influencing the next treatment; the third treatment layer treats acidic substances in the flue gas through alkali liquor; the fourth treatment layer can adsorb moisture and unprocessed substances in the flue gas, and pollutants in the flue gas can be effectively processed through the treatment steps.

The using method comprises the following steps: opening a mounting door on the side surface of the first treatment layer, loading a cleaning assembly, and then closing the mounting door; the hanging lug of the filter sleeve is arranged in the pore channel of the wall of the first air inlet pipe, and the screw is screwed down to ensure that the filter sleeve is stably installed; closing a valve on the drain pipe; after the flue gas enters the first air inlet pipe, the valves on the water inlet pipe and the water outlet pipe are opened to enable water to circulate in the cleaning assembly, and then the valve on the liquid inlet pipe is opened to enable the alkali liquor to enter the inner layer of the third treatment layer.

The smoke firstly enters a channel defined by the cleaning component, tar and dust particles in the smoke can be adhered to the interlayer or the bottom plate due to the temperature reduction of the smoke caused by the flow of water in the interlayer, and more tar or dust particles can be adhered due to the fact that the surface area of the interlayer is increased by the protrusions arranged on the interlayer; then the dust enters the second treatment layer from the second air inlet pipe, the adsorption particles in the dust can be made of active carbon, organic matter components in the smoke can be adsorbed, if the organic matter in the smoke is not removed, more organic matter in the smoke enters the third treatment layer, and most of the organic matter does not react with the alkali liquor and has lower density, so that the dust can float on the surface of the alkali liquor, and the treatment effect of the alkali liquor is influenced; the flue gas enters a third treatment layer from a third gas inlet pipe, the top of the third gas inlet pipe is provided with a cover plate, so the flue gas can only flow out from a round hole on the side surface, alkali liquor sprayed from a spray head reacts with acidic substances in the flue gas, the third treatment layer is divided into an inner layer and an outer layer by a fourth partition plate, the bottom of the inner layer and the bottom of the outer layer are connected by holes, the alkali liquor on the inner layer enters the outer layer through the holes, the flue gas treated on the inner layer enters the outer layer through a gas supply pipe, the flue gas can contact and react with the alkali liquor on the outer layer again, the complete treatment of the acidic substances is ensured, and the gas supply pipe is inverted L-shaped, so the alkali liquor; then the flue gas enters a fourth treatment layer through a fourth air inlet pipe, firstly contacts with adsorption fibers at the bottom of the fourth treatment layer, substances such as moisture in the flue gas are adsorbed, then upwards contacts with activated carbon again, and untreated organic matters and other components in the flue gas are adsorbed again; then the flue gas flows out through an exhaust pipe, and the exhaust pipe can be connected with a bag type dust collector for further dust removal. After the treatment is finished, the valves on the water inlet pipe and the water outlet pipe are closed, and the valve on the liquid inlet pipe is closed; opening the installation door, pulling the cleaning assembly out of the first treatment layer, cleaning substances such as tar and the like adhered to the cleaning assembly, and loading the cleaned substances into the first treatment layer from the installation door; when the third treatment layer contains more alkali liquor, the liquid outlet can be opened to discharge the alkali liquor.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (8)

1. The household garbage pyrolysis flue gas purification device is characterized by comprising a box body (1), a first air inlet pipe (2) arranged at the bottom of the side surface of the box body (1), an exhaust pipe (11) arranged at the top of the box body (1), and a first partition plate (3), a second partition plate (4) and a third partition plate (5) which are arranged on the inner side surface of the box body (1) from bottom to top in sequence; the box body (1) is sequentially divided into a first treatment layer (6), a second treatment layer (8), a third treatment layer (9) and a fourth treatment layer (10) from bottom to top by the first partition plate (3), the second partition plate (4) and the third partition plate (5); a clearing component (7) and a second air inlet pipe (75) arranged on the first partition plate (3) are arranged in the first treatment layer (6), the clearing component (7) comprises a U-shaped upward bottom plate (79) tightly attached to the inner bottom surface of the box body (1), a top plate (78) tightly attached to the first partition plate (3) and a plurality of partition layers (72) connected with the top plate (78) and the bottom plate (79), and a U-shaped groove (77) is formed in one end of each partition layer (72); the side surface of the first treatment layer (6) is provided with an installation door (76) for dismounting the cleaning assembly (7); adsorption particles are filled in the second treatment layer (8), and a third air inlet pipe (81) is arranged on the second partition plate (4); the third treatment layer (9) is provided with a liquid outlet (94) on the side surface of the box body (1), the top of the third treatment layer (9) is provided with a spray head (96), the spray head (96) is connected with a liquid inlet pipe (95), and a fourth air inlet pipe (97) is arranged on the third partition plate (5).

2. The household garbage pyrolysis flue gas purification device as claimed in claim 1, wherein a hollow filter sleeve (21) with two open ends is arranged in the first air inlet pipe (2), a hanging lug (22) is arranged on the filter sleeve (21), and the hanging lug (22) can be inserted into a pore channel (23) on the pipe wall of the first air inlet pipe (2) and fixed by screwing a screw (24) arranged on the pipe wall of the first air inlet pipe (2).

3. The flue gas purification device for pyrolysis of household garbage according to claim 1, wherein the partitions (72) are arranged in a staggered manner, that is, the U-shaped grooves (77) of two adjacent partitions (72) are connected with the top plate (78) and the bottom plate (79).

4. The household garbage pyrolysis flue gas purification device as claimed in claim 3, wherein the partition layers (72) are hollow, adjacent partition layers (72) are connected through a pipeline (73), and two partition layers (72) at the outer side are respectively connected with the water inlet pipe (71) and the water outlet pipe (74); the water inlet pipe is connected with the water outlet pipe (74) through a U-shaped groove (77) end of the interlayer (72), and the water outlet pipe is connected with the water outlet pipe (71) through a non-U-shaped groove end of the interlayer (72).

5. The household garbage pyrolysis flue gas purification device according to claim 1, wherein a fourth partition plate (92) is arranged in the third treatment layer (9), the fourth partition plate (92) is respectively connected with the second partition plate (4) and the third partition plate (5), the third treatment layer (9) is divided into an outer layer (98) and an inner layer (99) by the fourth partition plate (92), and the inner layer (99) comprises a spray head (96) and a third air inlet pipe (81) within the range.

6. The household garbage pyrolysis flue gas purification device as claimed in claim 5, wherein an air feed pipe (93) is arranged at the upper end of the fourth partition plate (92), and the air feed pipe (93) is communicated with the inner layer (99) and extends into the bottom of the outer layer (98); the bottom of the fourth partition plate (92) is provided with a hole (91), and the hole (91) is communicated with the outer layer (98) and the inner layer (99).

7. The household garbage pyrolysis flue gas purification device as claimed in claim 5, wherein the third air inlet pipe (81) comprises a cover plate (812) covering the top of the third air inlet pipe (81), the cover plate (812) is conical, and a round hole (811) is formed in the upper end of the side surface of the third air inlet pipe (81).

8. The household garbage pyrolysis flue gas purification device according to any one of claims 1 to 7, wherein an activated carbon layer (102) is arranged in the fourth treatment layer (10), and an adsorption fiber layer (101) is arranged at the bottom of the activated carbon layer (102).

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