Waste gas treatment equipment for biomass combustion furnace

Abstract

The utility model discloses biomass combustion furnace waste gas treatment equipment, relates to waste gas treatment technical field, the device includes treatment box, filter box, intake pipe and exhaust pipe, filter box is provided on one side of treatment box, intake pipe is provided on one side of filter box, exhaust pipe is provided on one side of treatment box far away from filter box, exhaust pipe is provided on the other side of treatment box far away from filter box, exhaust pipe is provided on the other side of treatment box far away from filter box. Two filter screens are arranged in the filter box, through grooves corresponding to the filter screens in position are formed in the top of the filter box, a fixing assembly used for fixing the filter screens is arranged on the filter box, and a filter assembly used for secondary filtration is arranged in the treatment box. According to the utility model, the detachable filter screen is arranged, so that the filter screen is convenient to replace, when the filter screen loses an interception effect due to excessive dust accumulation or long-time use, an operator only needs to simply dismount and mount the filter screen to replace a new filter screen, and gas is secondarily filtered through the arranged filter bag.

Description

TECHNICAL FIELD

[0001] The utility model relates to waste gas treatment technical field, concretely is a kind of biomass combustion furnace waste gas treatment equipment. BACKGROUND

[0002] Agricultural and forestry wastes refer to surplus materials generated in the process of agricultural production, rural life and forestry production. They are usually natural waste but useful organic matter. Such wastes have good combustibility and are common sources of biomass fuel. Biomass combustion furnaces convert agricultural and forestry wastes into heat energy through high-temperature combustion for heating, power generation, industrial production or other purposes. It is an important device for realizing biomass energy utilization and can significantly reduce the use of traditional fossil energy.

[0003] For example, the patent CN213790526 U discloses a biomass combustion furnace waste gas treatment equipment. The filter screen is arranged to filter the particulate matter in the waste gas first, then wash the filtered waste gas in the purification tank, and finally dry the waste gas after passing through the drying cotton board. The multiple treatments avoid environmental pollution, improve the usability of the equipment, and improve the heat dissipation performance of the equipment by the wind power generated by the fan. The supporting rotating legs for supporting the device can be used to support the entire device and improve the stability of the device. When not needed, the supporting rotating legs can be stored and stacked, improving the use convenience of the equipment.

[0004] The fixed filter screen in the above-mentioned technology can capture larger particulate matter. For example, there may be some wood chips or ash remaining in the waste gas generated after the agricultural and forestry wastes are conveyed to the boiler. These impurities can be filtered by the filter screen, but the waste gas usually contains other small particles. It is difficult to filter these small particles in the above-mentioned technology, resulting in that the gas discharged into the air still contains fine particles. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a biomass combustion furnace waste gas treatment equipment to solve the problems in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A biomass combustion furnace waste gas treatment equipment comprises:

[0008] a treatment tank;

[0009] a filter tank arranged on one side of the treatment tank;

[0010] It also includes the air inlet pipe and exhaust pipe, the air inlet pipe is arranged in the filter box one side, the exhaust pipe is arranged in the treatment box far from the filter box one side, the filter box inside is provided with two filter screen, the filter box top is equipped with with filter screen position corresponding through slot;

[0011] The filter box is provided with a fixing assembly for fixing the filter screen;

[0012] The inside of the treatment box is provided with a filter assembly for secondary filtration.

[0013] On the basis of the above technical scheme, the utility model further provides the following optional technical scheme:

[0014] In an optional scheme, the fixing assembly includes a fixing plate, the fixing plate is installed on the top of the two filter screens, the fixing plate is installed with a fixing lug around, the inside of the fixing lug is equipped with screw, the threaded end of the screw is screwed to the inside of the filter box.

[0015] In an optional scheme, the filter assembly includes a support plate, the support plate is installed in the inside of the treatment box, the support plate is provided with a plurality of filter bags, the inside of the filter bag is equipped with a support framework, the bottom of the filter bag is communicated with an air outlet pipe, the bottom end of the air outlet pipe is communicated with a flow guide pipe, and the flow guide pipe is communicated with the exhaust pipe.

[0016] In an optional scheme, the treatment box is provided with a cleaning assembly for cleaning the filter bag.

[0017] In an optional scheme, the cleaning assembly includes a gas storage tank, the gas storage tank is arranged on one side of the top of the treatment box, the bottom of the gas storage tank is communicated with a plurality of pulse valves, the exhaust end of the pulse valve is communicated with a blowing pipe, the bottom of the blowing pipe is communicated with a plurality of nozzles, and the nozzle is arranged on the top of the filter bag.

[0018] In an optional scheme, the bottom of the treatment box is provided with a discharge port, the bottom of the discharge port is installed with a collecting hopper, and the bottom of the collecting hopper is installed with a first electromagnetic valve.

[0019] In an optional scheme, the second electromagnetic valve is installed on the exhaust pipe.

[0020] In an optional scheme, the side of the treatment box is installed with a differential pressure detection mechanism.

[0021] Compared with the prior art, the utility model has the beneficial effects as follows:

[0022] The detachable filter screen is convenient to replace, when the filter screen loses the interception effect due to too much dust or too long use time, the operating personnel can replace the new filter screen only by simply disassembling and installing, and the filter bag is arranged to perform secondary filtration on the gas, so that the small particles can be effectively captured and attached to the surface of the filter bag, and the purification efficiency of the waste gas treatment is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a structural schematic view of the utility model.

[0024] Figure 2 It is a partial sectional structure schematic view of the utility model.

[0025] Figure 3 It is a partial structure schematic view of the utility model.

[0026] Among them: 100, treatment box, 200, filter box, 301, air inlet pipe, 302, exhaust pipe, 303, filter screen, 401, fixed plate, 402, fixed lug, 403, screw, 501, support plate, 502, filter bag, 503, air outlet pipe, 504, flow guide pipe, 601, gas storage tank, 602, pulse valve, 603, blowing pipe, 604, nozzle, 701, collecting hopper, 702, first electromagnetic valve, 703, second electromagnetic valve, 704, differential pressure detection mechanism. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail by combining with the drawings and examples.

[0028] In one embodiment, as shown in Figures 1-3 A biomass combustion furnace waste gas treatment equipment, comprising: treatment box 100, filter box 200, air inlet pipe 301 and exhaust pipe 302, the filter box 200 is arranged on one side of the treatment box 100, the air inlet pipe 301 is arranged on one side of the filter box 200, the exhaust pipe 302 is arranged on the side of the treatment box 100 away from the filter box 200, the inside of the filter box 200 is provided with two filter screens 303, and a through slot corresponding to the position of the filter screen 303 is formed in the top of the filter box 200;The waste gas is introduced into the filter box 200 inside through the air inlet pipe 301 and is preliminarily filtered, and then is introduced into the treatment box 100 inside for secondary filtration, and finally is discharged by the exhaust pipe 302;

[0029] The filter box 200 is provided with a fixing assembly for fixing the filter screen 303;

[0030] The inside of the treatment box 100 is provided with a filter assembly for secondary filtration.

[0031] In one embodiment, as shown in Figure 1 and Figure 2 , the fixing assembly comprises a fixing plate 401 mounted on the top of the two filter screens 303, the fixing plate 401 is provided with a fixing lug 402 around, the inside of the fixing lug 402 is provided with a screw 403, the threaded end of the screw 403 is screwed to the inside of the filter box 200; by fixing the screw 403 between the fixing lug 402 and the filter box 200, the fixing plate 401 can be fixed on the filter box 200.

[0032] In one embodiment, as shown in Figure 2 and Figure 3 , the filter assembly comprises a support plate 501 mounted on the inside of the treatment box 100, the support plate 501 is provided with a plurality of filter bags 502, the inside of each filter bag 502 is provided with a support framework, the bottom of the filter bag 502 is communicated with an air outlet pipe 503, the bottom end of the air outlet pipe 503 is communicated with a flow guide pipe 504, the flow guide pipe 504 is communicated with the exhaust pipe 302; the gas after the preliminary filtration flows into the inside of the treatment box 100, and then is filtered by the filter bag 502, so that the small particles are attached to the surface of the filter bag 502, the gas enters the inner cavity of the filter bag 502, and then is discharged through the air outlet pipe 503 and the flow guide pipe 504, at this time the flow guide pipe 504 is communicated with the exhaust pipe 302, so that the gas is discharged through the exhaust pipe 302.

[0033] In one embodiment, as shown in Figure 2 and Figure 3 , the cleaning assembly comprises an air storage tank 601, the air storage tank 601 is arranged on one side of the top of the treatment box 100, the bottom of the air storage tank 601 is communicated with a plurality of pulse valves 602, the exhaust end of the pulse valve 602 is communicated with a blowing pipe 603, the bottom of the blowing pipe 603 is communicated with a plurality of nozzles 604, the nozzles 604 are arranged on the top of the filter bag 502; by starting the pulse valve 602, the pulse valve 602 releases the gas through the blowing pipe 603, and then through the nozzles 604, forming a powerful reverse airflow into the inner cavity of the filter bag 502, so that the filter bag expands and vibrates violently, thereby shaking off the impurities attached to the surface of the filter bag.

[0034] In one embodiment, as shown in Figure 1 , the bottom of the treatment box 100 is provided with a discharge port, the bottom of the discharge port is mounted with a collecting hopper 701, the bottom of the collecting hopper 701 is mounted with a first electromagnetic valve 702; by the collecting hopper 701 arranged, the small particles adsorbed on the filter bag 502 are collected, and then discharged by opening the first electromagnetic valve 702.

[0035] In one embodiment, as shown in Figure 1 and Figure 2 A second electromagnetic valve 703 is installed on the exhaust pipe 302; by opening or closing the second electromagnetic valve 703, the gas is discharged.

[0036] In one embodiment, as shown in Figure 1 A differential pressure detection mechanism 704 is installed on one side of the treatment box 100; by detecting the pressure difference on both sides of the filter bag 502 through the differential pressure detection mechanism 704, it is determined whether the filter bag 502 needs to be cleaned.

[0037] The above embodiment discloses a biomass combustion furnace exhaust treatment equipment, wherein the exhaust gas is introduced into the filter box 200 through the air inlet pipe 301 for preliminary filtration, the exhaust gas is filtered by the filter screen 303, the larger impurities are filtered and then enter the inside of the treatment box 100, and then the filter bag 502 is filtered, so that the small particles are attached to the surface of the filter bag 502, the gas enters the inner cavity of the filter bag 502, and then is discharged through the gas outlet pipe 503 and the flow guide pipe 504, at this time the flow guide pipe 504 is communicated with the exhaust pipe 302, so that the gas is discharged through the exhaust pipe 302, when the filter screen 303 needs to be replaced, the fixed lug 402 can be separated from the filter box 200 by rotating the screw 403, so that the fixed plate 401 can be taken out, the fixed plate 401 drives the filter screen 303 to move, so that the new filter screen 303 can be quickly replaced, the pulse valve 602 is started, so that the pulse valve 602 releases the gas through the blowing pipe 603 and then through the nozzle 604, forming a powerful reverse airflow into the inner cavity of the filter bag 502, so that the filter bag 502 expands and vibrates violently, so that the impurities attached to the surface of the filter bag 502 are shaken off, and these impurities fall into the inside of the collecting hopper 701, and the impurities are discharged by opening the first electromagnetic valve 702.

[0038] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A biomass combustion furnace exhaust treatment equipment, comprising: a treatment box (100); a filter box (200) arranged on one side of the treatment box (100); characterized in that it further comprises an air inlet pipe (301) arranged on one side of the filter box (200) and an air outlet pipe (302) arranged on the side of the treatment box (100) away from the filter box (200), the inside of the filter box (200) is provided with two filter screens (303), and a through slot corresponding to the position of the filter screen (303) is formed in the top of the filter box (200); the filter box (200) is provided with a fixing assembly for fixing the filter screen (303); the inside of the treatment box (100) is provided with a filter assembly for secondary filtration.

2. A biomass boiler exhaust treatment apparatus according to claim 1, wherein the fixing assembly comprises a fixing plate (401) mounted on the top of the two filter screens (303), the fixing plate (401) is provided with a fixing lug (402) around, the inside of the fixing lug (402) is provided with a screw (403), and the threaded end of the screw (403) is threadedly connected to the inside of the filter box (200).

3. The biomass boiler exhaust treatment apparatus of claim 1, wherein, the filter assembly comprises a support plate (501) mounted in the inside of the treatment box (100), the support plate (501) is provided with a plurality of filter bags (502), the inside of each filter bag (502) is provided with a support framework, the bottom of the filter bag (502) is communicated with an air outlet pipe (503), the bottom end of the air outlet pipe (503) is communicated with a flow guide pipe (504), and the flow guide pipe (504) is communicated with the air outlet pipe (302).

4. A biomass boiler exhaust treatment apparatus according to claim 3, wherein the treatment box (100) is provided with a cleaning assembly for cleaning the filter bag (502).

5. A biomass boiler exhaust treatment apparatus according to claim 4, wherein the cleaning assembly comprises an air storage tank (601) arranged on one side of the top of the treatment box (100), the bottom of the air storage tank (601) is communicated with a plurality of pulse valves (602), the air outlet end of the pulse valve (602) is communicated with a blowing pipe (603), the bottom of the blowing pipe (603) is communicated with a plurality of nozzles (604), and the nozzles (604) are arranged on the top of the filter bag (502).

6. A biomass boiler exhaust treatment apparatus according to claim 1, wherein the bottom of the treatment box (100) is provided with a discharge port, the bottom of the discharge port is mounted with a collecting hopper (701), and the bottom of the collecting hopper (701) is mounted with a first electromagnetic valve (702).

7. A biomass boiler exhaust treatment apparatus according to claim 1, wherein a second electromagnetic valve (703) is mounted on the air outlet pipe (302).

8. A biomass boiler exhaust treatment apparatus according to claim 1, wherein a differential pressure detection mechanism (704) is mounted on one side of the treatment box (100).

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