Waste gas combustion device for landfill

Abstract

The utility model relates to the technical field of combustion devices, and discloses a waste gas combustion device for landfill, which comprises a combustion furnace and a box body, the box body is communicated with a gas inlet pipe and an exhaust pipeline, two side walls of the box body are inserted and connected with a plurality of filter plates and water condensation plates, the bottom of the box body is provided with a water collection cavity, and the water collection cavity is communicated with the box body. A sewer pipe is communicated outside the water collecting cavity; the water collecting box is arranged on the outer side of the combustion furnace, the water condensing plate and the filter plate are arranged in the water collecting box, the water collecting cavity is formed in the box bottom, and the water condensing plate can collect and separate water generated in the methane combustion process, so that the problem that the inner wall of the combustion furnace is corroded due to the water is solved, and the combustion efficiency is improved by removing the water in time. Proper temperature and combustion conditions in the furnace can be maintained, so that the combustion efficiency of methane is improved, and the emission of gas which is not completely combusted is reduced; and the water collecting cavity at the bottom of the box can collect water separated by the water condensing plate in a centralized manner, so that subsequent treatment and discharge are facilitated, and the water is prevented from being dispersed in the furnace.

Description

Technical Field

[0001] The utility model relates to the technical field of combustion devices, in particular to a waste gas combustion device for landfill. Background Art

[0002] During the decomposition of garbage, landfills produce a large amount of biogas, of which methane is the main component. If methane is directly discharged into the atmosphere, it will not only lead to an intensified greenhouse effect, but may also cause safety hazards such as fires. Therefore, landfills usually use waste gas combustion devices to treat these biogases, burning the methane into water and carbon dioxide. The working principle of the waste gas combustion device is to introduce biogas into the combustion furnace and burn it under high temperature conditions. During the combustion process, methane reacts chemically with oxygen in the air to generate carbon dioxide and water vapor. When methane is completely burned, a large amount of heat energy will be released, and harmless carbon dioxide and water vapor will be generated at the same time.

[0003] At present, the patent with announcement number CN214664449U discloses a landfill waste gas combustion device, including a sealing cover, a gas collecting well, a pressure alarm A, a gas transmission pipe A, a gas transmission valve A, a gas transmission valve B, a gas storage tank, a pressure alarm B, a gas transmission pipe B, a gas transmission valve C, and a combustion furnace. The gas collecting well is installed on the top of the sealing cover, the pressure alarm A is installed in the middle of the side end of the gas collecting well, the rear end of the gas transmission pipe A is installed in the middle of the side end of the gas collecting well, the gas transmission valve A is installed in the rear of the gas transmission pipe A, the gas transmission valve B is installed in the front of the gas transmission pipe A, the pressure alarm B is installed in the middle of the side end of the gas storage tank, the rear end of the gas transmission pipe B is installed in the middle of the side end of the gas storage tank, the gas transmission valve C is installed in the middle of the gas transmission pipe B, and the combustion furnace is installed at the front of the gas transmission pipe B; although the above device solves the problem of effectively utilizing landfill gas, the above scheme still has the following problems:

[0004] After methane burns in the combustion furnace, it produces water and carbon dioxide. Water deposited at the bottom of the combustion furnace will occupy the furnace space, affecting the full mixing of methane and oxygen, thereby reducing the combustion efficiency. In addition, the deposited water may also absorb the heat of the furnace and cause heat energy loss; the deposited water may cause the combustion process to be unstable, resulting in flame fluctuations, uneven combustion and other problems, affecting the normal operation of the landfill; after water is mixed with other components in the exhaust gas, it may form complex compounds, increasing the difficulty of exhaust gas treatment. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a waste gas combustion device for landfill to at least solve one of the problems raised by the background technology, such as: maintaining the normal operation of the combustion furnace, improving the combustion efficiency and waste gas treatment effect, and reducing equipment damage and environmental pollution.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a waste gas combustion device for landfill, comprising a combustion furnace and a box body connected to one end of the combustion furnace, an air intake pipe is connected to one side of the box body, the other end of the air intake pipe is connected to the combustion furnace, an exhaust duct is connected to the top of the box body, a plurality of filter plates and condensation plates are inserted and connected to the two side walls of the box body, a water collecting chamber is opened at the bottom of the box body, and a sewer pipe is connected to the outside of the water collecting chamber.

[0007] Furthermore, the side wall of the furnace body is provided with a slot into which one end of the filter plate and the condensation plate are inserted and connected. The filter plate and the condensation plate are fixedly connected to the side wall of the furnace body by external bolts. A sealing ring is provided at the connection between the filter plate, the condensation plate and the slot.

[0008] Furthermore, the filter plates and the condensation plates are arranged alternately up and down, and the surfaces of the filter plates and the condensation plates cover the interior of the furnace body.

[0009] Furthermore, an air passage is provided on the surface of the condensation plate.

[0010] Furthermore, the bottom of the water collecting chamber is inclined.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The utility model installs a water collecting box on the outer side of the combustion furnace, and arranges a condensation plate and a filter plate in the water collecting box, and a water collecting cavity is arranged at the bottom of the box. The condensation plate can collect and separate moisture generated in the process of methane combustion, thereby reducing the problem of corrosion of the inner wall of the combustion furnace caused by moisture. By removing moisture in time, it is helpful to maintain the appropriate temperature and combustion conditions in the furnace, thereby improving the combustion efficiency of methane and reducing the emission of incompletely burned gases; the water collecting cavity at the bottom of the box can centrally collect the moisture separated by the condensation plate, which is convenient for subsequent processing and discharge, and avoids the dispersion of moisture in the furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the three-dimensional structure of the box body of the utility model;

[0015] Figure 3 This is a schematic diagram of the internal three-dimensional structure of the box body of the utility model;

[0016] Figure 4 This is a schematic diagram of the three-dimensional structure of the filter plate of the utility model;

[0017] Figure 5 It is a schematic diagram of the three-dimensional structure of the water condensation plate of the utility model.

[0018] In the figure: 1, box body; 101, slot; 2, filter plate; 3, condensation plate; 301, air outlet; 4, water collecting chamber; 5, exhaust pipe; 6, downpipe; 7, sealing ring; 8, air inlet pipe. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] like Figures 1 to 5 As shown, a waste gas combustion device for landfill includes a combustion furnace and a box body 1 connected to one end of the combustion furnace, an air intake pipe 8 is connected to one side of the box body 1, and the other end of the air intake pipe 8 is connected to the combustion furnace, an exhaust pipe 5 is connected to the top of the box body 1, and a plurality of filter plates 2 and condensation plates 3 are inserted and connected to the two side walls of the box body 1, a water collecting chamber 4 is opened at the bottom of the box body 1, and a downpipe 6 is connected to the outside of the water collecting chamber 4.

[0021] like Figure 1 As shown, a waste gas combustion device for landfill in the utility model is similar in structure to the existing waste gas combustion device for landfill, such as the waste gas combustion device for landfill disclosed in the patent with announcement number CN214664449U. The main improvement of the utility model is to prevent moisture from flowing back into the combustion furnace, thereby ensuring the stability and safety of the combustion process. Figures 1 to 5 As shown, when a waste gas combustion device for landfill in the utility model is in use, the box body 1 is used as a core component to contain and process the water vapor generated by the combustion of methane. The water vapor generated by the combustion furnace is driven by the fan into the air inlet pipe 8. The air inlet pipe 8 ensures that the water vapor can smoothly enter the box body 1 for treatment. At the same time, the connection of the exhaust pipe 5 ensures that the treated gas can be discharged safely. The filter plate 2 can filter out part of the water and the complex compounds formed by the waste gas to ensure that the gas discharged from the box body 1 is relatively pure, and at the same time assists in condensing water. The condensation plate 3 is responsible for condensing and collecting the moisture in the water vapor to improve the treatment effect. The water collecting chamber 4 can collect the water condensed by the condensation plate 3 to ensure that the water will not disperse everywhere, which is convenient for subsequent treatment and discharge. The connection of the sewer pipe 6 allows the water in the water collecting chamber 4 to be discharged smoothly, keeping the box body 1 dry and clean.

[0022] like Figures 1 to 5 As shown, a slot 101 is provided on the side wall of the box body 1 to be inserted and connected with one end of the filter plate 2 and the condensation plate 3. The filter plate 2 and the condensation plate 3 are fixedly connected to the side wall of the box body 1 by external bolts. A sealing ring 7 is provided at the connection between the filter plate 2, the condensation plate 3 and the slot 101.

[0023] Specifically, the slot 101 opened on the side wall of the box body 1 provides a convenient way to install the filter plate 2 and the condensation plate 3. By inserting one end of the filter plate 2 and the condensation plate 3 into the slot 101 and then fixing them with external bolts, the stability and firmness of these plates on the side wall of the box body 1 are ensured. The sealing ring 7 can effectively prevent water vapor from leaking out from the gap between the plate and the slot 101 during the filtering and condensation process, thereby ensuring the water vapor treatment effect.

[0024] like Figure 3 As shown, the filter plates 2 and the condensation plates 3 are arranged alternately up and down, and the surfaces of the filter plates 2 and the condensation plates 3 cover the interior of the box body 1 .

[0025] Specifically, by arranging the filter plates 2 and the condensation plates 3 alternately up and down in this arrangement, it can be ensured that the water vapor can be filtered and condensed in sequence when passing through the box body 1, thereby achieving comprehensive purification of the water vapor. The covering method ensures that the flow path of the water vapor in the box body 1 can fully contact the filter plates 2 and the condensation plates 3, thereby improving the efficiency and effect of the water vapor treatment.

[0026] like Figure 5 As shown, an air passage 301 is provided on the surface of the condensation plate 3 .

[0027] Specifically, the setting of the air outlet 301 ensures that the exhaust gas can pass through the condensation plate 3 smoothly. Since the main function of the condensation plate 3 is to condense the moisture in the water vapor, by opening the air outlet 301, the water vapor can pass through the condensation plate 3 smoothly and fully contact with the surface of the condensation plate 3 to achieve an effective condensation effect, ensure the smooth flow of water vapor, improve the condensation efficiency, and prevent the condensation plate 3 from being blocked.

[0028] like Figures 1 to 3 As shown, the bottom of the water collecting chamber 4 is inclined.

[0029] Specifically, through this slope design, the water in the water collection chamber 4 can automatically flow to the sewer pipe 6. Due to the effect of gravity, the water will flow along the direction of the slope, making it easier to enter the sewer pipe 6 and be discharged. This automatic drainage method not only reduces the need for manual operation, but also improves the drainage efficiency and ensures the timely emptying of the water collection chamber 4.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A waste gas combustion device for landfill, comprising a combustion furnace and a box body (1) connected to one end of the combustion furnace, characterized in that: One side of the box body (1) is connected to an air intake pipe (8), the other end of the air intake pipe (8) is connected to the combustion furnace, the top of the box body (1) is connected to an exhaust pipe (5), two side walls of the box body (1) are inserted and connected with a plurality of filter plates (2) and condensation plates (3), the bottom of the box body (1) is provided with a water collection chamber (4), and the outside of the water collection chamber (4) is connected to a downpipe (6).

2. A landfill waste gas combustion device according to claim 1, characterized in that: The side wall of the box body (1) is provided with a slot (101) into which one end of the filter plate (2) and the condensation plate (3) is inserted and connected; the filter plate (2) and the condensation plate (3) are fixedly connected to the side wall of the box body (1) by external bolts; and a sealing ring (7) is sleeved at the connection between the filter plate (2), the condensation plate (3) and the slot (101).

3. A landfill waste gas combustion device according to claim 1 or 2, characterized in that: The filter plates (2) and the water condensation plates (3) are arranged in a staggered manner up and down, and the surfaces of the filter plates (2) and the water condensation plates (3) cover the interior of the box body (1).

4. A landfill waste gas combustion device according to claim 1 or 2, characterized in that: The surface of the water condensation plate (3) is provided with an air passage (301).

5. The waste gas combustion device for landfill according to claim 3, characterized in that: The surface of the water condensation plate (3) is provided with an air passage (301).

6. A landfill waste gas combustion device according to claim 1, 2 or 5, characterized in that: The bottom of the water collecting chamber (4) is arranged to be inclined.

7. The waste gas combustion device for landfill according to claim 3, characterized in that: The bottom of the water collecting chamber (4) is arranged to be inclined.

8. The waste gas combustion device for landfill according to claim 4, characterized in that: The bottom of the water collecting chamber (4) is arranged to be inclined.

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