Tail gas purification system
By using a physical filtration system to perform primary filtration on the exhaust gas from livestock and poultry harmless treatment equipment, the problems of complex equipment structure and high energy consumption in existing technologies are solved, achieving high-efficiency filtration and cost reduction.
Patent Information
- Application Number
- CN202422565952.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-23
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2034-10-23
AI Technical Summary
Existing livestock and poultry harmless treatment equipment has complex exhaust gas purification systems, large footprints, and high energy consumption. Existing filtration methods are difficult to effectively reduce the filter load, which limits the use of the equipment.
The exhaust gas purification system, which uses physical filtration, includes a condenser chamber, a filter box, a ventilation pipe, a negative pressure fan, and a semiconductor cooling chip. It reduces the burden on the post-catalytic filter by primary filtration, extends the equipment maintenance cycle, and reduces costs.
It achieves primary filtration of exhaust gas, reduces the burden on post-catalytic filter equipment, extends the service life of the equipment, and reduces equipment size and investment costs, while also reducing noise and energy consumption.
Smart Images
Figure CN223810919U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to gas filter technical field, concretely relates to a tail gas purification system. BACKGROUND
[0002] With the continuous development and technical progress of livestock harmless treatment equipment, the technical requirements of tail gas purification treatment system in livestock harmless treatment equipment are also higher and higher. After the livestock, especially the dead livestock, the diseased livestock, and the diseased animal product waste materials are treated by the harmless treatment equipment, the odor concentration in the tail gas discharged by the treatment equipment is very high, and the tail gas must be purified. In the known technology, the tail gas purification system of the existing livestock harmless treatment equipment mainly adopts photocatalytic device or low-temperature plasma purification device. However, in order to prolong the maintenance period, the filter area needs to be increased to reduce the load of the filter, so that the overall structure is complicated, the land occupation is large, the energy consumption is high, and the actual use is limited. SUMMARY
[0003] The utility model provides a tail gas purification system, through the way of physical filtration to the discharged tail gas carries out the preliminary filtration, thereby reduces the load of the post filter equipment, prolongs the filter body use period, reduces the total investment cost of the equipment.
[0004] In order to achieve the above purpose, the utility model provides the following technical scheme: a tail gas purification system, comprising: a condensation cavity, the condensation cavity is horizontally arranged cavity structure, and one end is provided with a smoke inlet; a filter box, the filter box is arranged at the bottom of the condensation cavity, and the filter box top is provided with an exhaust port, the middle part is provided with a liquid inlet, and the bottom is provided with a liquid outlet, the liquid outlet is provided with a liquid valve; a vent pipe, the vent pipe is a plurality of matrix arrangement vertical pipes, and is connected with the condensation cavity and the filter box; each vent pipe top end extends to the inside of the condensation cavity and is provided with an extension head; each vent pipe bottom end extends to the inside of the filter box and is provided with a submergence head, and the submergence head bottom end is located below the liquid inlet.
[0005] Preferably, it further includes a negative pressure fan, and the air inlet of the negative pressure fan is communicated with the exhaust port.
[0006] Preferably, it further includes a plurality of semiconductor refrigerating sheets, each semiconductor refrigerating sheet is attached to the top outer wall of the condensation cavity, and each semiconductor refrigerating sheet is electrically connected with a switching power supply.
[0007] Preferably, it further includes a flow guide pipe, one end of the flow guide pipe is communicated with the liquid inlet through a tee joint, the other end is communicated with the bottom of the condensation cavity, and the flow guide pipe is provided with a flow guide valve.
[0008] Preferably, a support net is horizontally arranged above the liquid adding opening in the filter box, and filter cotton is arranged on the top of the support net.
[0009] Preferably, an overflow pipe is further arranged, and the overflow pipe is flush with the liquid adding opening.
[0010] The beneficial effects of the utility model lie in that: the tail gas purification system is used as preposition tail gas filtering, communicates with the harmless drying equipment through the smoke inlet, and the filtered exhaust port communicates with the postposition catalytic device, so that the tail gas generated in the harmless treatment is preliminarily filtered, the burden of the postposition catalytic filtering equipment is reduced, the equipment maintenance period is prolonged, and the equipment volume and investment cost are reduced.
[0011] In addition, the negative pressure fan generates a low pressure area in the filter box, so that the flue gas in the condensation cavity is forcibly sucked into the filter box through the breather pipe and discharged from the filter box by the negative pressure fan after the filter liquid, and the pressure difference between the condensation cavity and the filter box is increased, so that the attachments on the inside of the breather pipe are also discharged. The flow guide pipe is used for discharging the condensate in the condensation cavity into the filter box to participate in the late filtration of the flue gas, and the flow guide valve is used for closing the flow guide pipe to avoid air path bypassing in the non-discharge state, and the movement of the flue gas is limited. The support net and the filter cotton not only prevent the filter liquid from splashing, but also help to reduce noise. BRIEF DESCRIPTION OF DRAWINGS
[0012] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.
[0013] Figure 1 It is a whole structure schematic view of the utility model;
[0014] Figure 2 It is an external structure schematic view of the utility model.
[0015] In the drawing: 1, condensation cavity;2, smoke inlet;3, filter box;4, liquid adding opening;5, liquid discharge port;6, liquid discharge valve;7, exhaust port;8, breather pipe;9, extension head;10, submergence head;11, negative pressure fan;12, semiconductor refrigerating sheet;13, flow guide pipe;14, flow guide valve;15, support net;16, filter cotton;17, overflow pipe. DETAILED DESCRIPTION
[0016] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0017] according to Figure 1 , Figure 2 As shown, an exhaust gas purification system includes: a condensing chamber 1, which is a horizontally arranged cavity structure with a smoke inlet 2 at one end; a filter box 3, which is located at the bottom of the condensing chamber 1, and has an exhaust port 7 at the top, a liquid inlet 4 in the middle, and a liquid outlet 5 at the bottom, with a liquid outlet valve 6 at the outlet 5; and vent pipes 8, which are several vertical pipes arranged in a matrix and connecting the condensing chamber 1 and the filter box 3; the top end of each vent pipe 8 extends into the condensing chamber 1 and is provided with an extension head 9; the bottom end of each vent pipe 8 extends into the filter box 3 and is provided with a submerged head 10, the bottom end of which is located below the liquid inlet 4.
[0018] This exhaust gas purification system, acting as a pre-filter, connects to the harmless drying equipment via the smoke inlet 2, while the filtered exhaust outlet 7 connects to the post-catalytic converter. This achieves primary filtration of the exhaust gas generated from the harmless treatment process, reducing the burden on the post-catalytic filter, extending its maintenance cycle, and lowering its size and investment cost. During operation, the filter box 3 is filled with a filtrate, which can be replaced by water. The flue gas to be filtered enters the condensation chamber 1 through the smoke inlet 2. The internal space of the condensation chamber 1 reduces the flow rate and temperature, causing grease and moisture in the flue gas to initially condense on the inner wall. With the exhaust pressure, the flue gas descends through the ventilation pipe 8 into the filter box 3 and is discharged from the filtrate. During this process, particulate matter in the flue gas is captured and filtered by the filtrate, which then escapes as bubbles and is finally discharged through the exhaust outlet 7.
[0019] It also includes a negative pressure fan 11, the air inlet of which is connected to the exhaust port 7.
[0020] With this setup, the negative pressure fan 11 generates a low-pressure zone inside the filter box 3, which facilitates the forced intake of flue gas in the condensation chamber 1 into the filter box through the ventilation pipe 8, and after passing through the filtrate, it is discharged from the filter box 3 by the negative pressure fan 11. At the same time, due to the increased pressure difference between the condensation chamber 1 and the filter box 3, it also facilitates the discharge of deposits inside the ventilation pipe 8.
[0021] A plurality of semiconductor refrigerating sheets 12 are also included, each of which is attached to the outer wall of the top of the condensing cavity 1, and each of which is electrically connected to the switching power supply.
[0022] When the semiconductor refrigerating sheets 12 are in operation, the temperature of the inner wall of the condensing cavity 1 is reduced, so that the moisture in the flue gas is condensed and collected at the bottom of the condensing cavity 1.
[0023] A flow guide pipe 13 is also included, one end of which is connected to the liquid inlet 4 through a tee joint, the other end of which is connected to the bottom of the condensing cavity 1, and the flow guide pipe 13 is provided with a flow guide valve 14.
[0024] In this arrangement, the flow guide pipe 13 is used to discharge the condensed liquid in the condensing cavity 1 to the filter box 3 to participate in the late-stage filtration of the flue gas, and the flow guide valve 14 is used to close the flow guide pipe 13 to avoid air bypassing in the non-liquid discharge state, thereby limiting the flow direction of the flue gas.
[0025] A support net 15 is horizontally arranged above the liquid inlet 4 inside the filter box 3, and the top of the support net 15 is provided with filter cotton 16.
[0026] The support net 15 and the filter cotton 16 in this arrangement not only avoid splashing of the filter liquid, but also help to reduce noise.
[0027] An overflow pipe 17 is also included, which is flush with the liquid inlet 4.
[0028] The overflow pipe in this arrangement can limit the liquid level of the filter liquid in the filter box 3, so as to avoid the filter liquid overflowing outwards through the exhaust port 7.
[0029] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed by 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. An exhaust gas purification system characterized by comprising: It comprises: A condensing cavity (1) which is a horizontally arranged cavity structure and is provided with an air inlet (2) at one end; A filter box (3) which is arranged at the bottom of the condensing cavity (1) and is provided with an air outlet (7) at the top, a liquid inlet (4) at the middle and a liquid outlet (5) at the bottom, wherein the liquid outlet (5) is provided with a liquid outlet valve (6); A ventilation pipe (8) which is a plurality of vertically arranged pipes arranged in a matrix and connects the condensing cavity (1) and the filter box (3) in parallel; The top end of each ventilation pipe (8) extends into the condensing cavity (1) and is provided with an extension head (9); The bottom end of each ventilation pipe (8) extends into the filter box (3) and is provided with a submergence head (10), and the bottom end of the submergence head is located below the liquid inlet (4).
2. The exhaust gas purification system according to claim 1, characterized by: It also comprises a negative pressure fan (11) whose air inlet is connected with the air outlet (7).
3. The exhaust gas purification system according to claim 1, characterized by: It also comprises a plurality of semiconductor refrigeration sheets (12) which are attached to the top outer wall of the condensing cavity (1), and each semiconductor refrigeration sheet is electrically connected with a switching power supply.
4. The exhaust gas purification system according to claim 1, characterized by: It also comprises a flow guide pipe (13) which is connected with the liquid inlet (4) at one end through a tee joint and is connected with the bottom of the condensing cavity (1) at the other end, and the flow guide pipe (13) is provided with a flow guide valve (14).
5. The exhaust gas purification system according to claim 1, characterized by: A support net (15) is horizontally arranged above the liquid inlet (4) in the filter box (3), and the top of the support net (15) is provided with filter cotton (16).
6. The exhaust gas purification system according to claim 1, characterized by: It also comprises an overflow pipe (17) which is flush with the liquid inlet (4).