Fixed-point exhaust gas removal device for mesh-belt kiln

Abstract

The utility model relates to the field of mesh-belt kilns, and discloses a mesh-belt kiln waste gas fixed-point removal device which comprises a mesh-belt kiln body, the top of the mesh-belt kiln body is fixedly connected with an exhaust pipe, the top of the exhaust pipe is fixedly connected with a bent pipe, one end of the bent pipe is fixedly connected with a guide pipe, one end of the guide pipe is fixedly connected with a negative pressure ring, and the other end of the guide pipe is fixedly connected with an exhaust pipe. And one side surface of the negative pressure ring is fixedly connected with a connecting pipe. The utility model has the following advantages and effects: the suction nozzle supplements negative pressure airflow to the bottom of the bent pipe, the inclined suction pipe inclines downwards to compensate the airflow, under the action of suction, waste gas is guided to flow upwards, part of the waste gas is sucked away by the suction nozzle and the inclined suction pipe, and the gas pressure in the bent pipe is actively controlled by the fan; a certain negative pressure environment is formed in the bent pipe, local air pressure distribution is changed, backflow caused by resistance to waste gas flowing is avoided, and therefore directional flowing exhaust of waste gas is enhanced, and exhaust of the waste gas is smoother.

Description

Technical Field

[0001] This utility model relates to the field of mesh belt kiln technology, and in particular to a device for targeted exhaust gas removal from mesh belt kilns. Background Technology

[0002] A mesh belt kiln is a heating furnace that uses a mesh belt to continuously transport components within the furnace. The waste gas emitted during the operation of a mesh belt kiln contains a large amount of heat energy. In order to save resources, mesh belt kilns with waste heat recovery functions have now emerged.

[0003] In the prior art, Chinese Patent Publication No. CN116857953A discloses a mesh belt kiln, relating to the technical field of mesh belt kiln structures. Specifically, it includes a mesh belt kiln liner and a kiln mesh that circulates through the liner. The mesh belt kiln liner is constructed of heat-resistant metal material and is divided into at least two liner units along its length. At least one temperature section is provided between each two liner units. This temperature section is constructed of a weakly thermally conductive material and has an adjustable liner channel through which the kiln mesh passes. The temperature within the adjustable liner channel is lower than the temperature of adjacent liner units. Due to the weak thermal conductivity of the temperature section, the temperature of the adjustable liner channel is lower than the temperature of adjacent liner units, thus allowing the kiln mesh to achieve a brief period of constant or cooling when carrying products into the area corresponding to the temperature section, thereby conforming to the temperature curve required for production.

[0004] However, in actual use, when the exhaust gas from the mesh belt kiln is discharged, the internal pressure of the exhaust pipe becomes unbalanced, causing the exhaust gas to encounter certain resistance. When it flows through the bend, backflow is likely to occur, resulting in the exhaust gas not being able to be discharged in a directional manner. Therefore, improvements are needed. Utility Model Content

[0005] The purpose of this invention is to provide a fixed-point exhaust gas removal device for mesh belt kilns, which avoids backflow caused by resistance to the flow of exhaust gas, thereby enhancing the directional flow and removal of exhaust gas and making the exhaust gas discharge smoother.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a mesh belt kiln exhaust gas fixed-point removal device, comprising a mesh belt kiln body, an exhaust pipe fixedly connected to the top of the mesh belt kiln body, a bent pipe fixedly connected to the top of the exhaust pipe, a guide pipe fixedly connected to one end of the bent pipe, a negative pressure ring fixedly connected to one end of the guide pipe, a connecting pipe fixedly connected to one side of the negative pressure ring, an arc-shaped pipe fixedly connected to the inner wall of the bent pipe, the connecting pipe extending into the interior of the arc-shaped pipe, a suction nozzle fixedly connected to the bottom of the arc-shaped pipe, an inclined suction pipe fixedly connected to the outer surface of the arc-shaped pipe, and a fan fixedly connected to the bottom of the negative pressure ring.

[0007] By adopting the above technical solution, when the mesh belt kiln generates internal waste gas, the waste gas enters the exhaust pipe and flows towards the bend. At this time, the blower starts and empties the air inside the negative pressure ring, creating a negative pressure inside the ring. This causes the connecting pipe to suck the gas, which in turn drives the arc-shaped pipe to suck the gas. The suction nozzle replenishes the negative pressure airflow to the bottom of the bend, and the inclined suction pipe tilts downward to compensate for the airflow. Under the action of suction, the waste gas is guided to flow upward, and some of the waste gas is sucked away by the suction nozzle and the inclined suction pipe. The gas pressure inside the bend is actively controlled by the blower, creating a certain negative pressure environment inside the bend, changing the local air pressure distribution, and preventing the waste gas from being obstructed and causing backflow. This enhances the directional flow and discharge of waste gas, making the waste gas discharge smoother.

[0008] A further feature of this invention is that a support frame is fixedly connected to the outer surface of the fan, and a second suction nozzle is fixedly connected to the inner wall of the negative pressure ring.

[0009] By adopting the above technical solution, the support frame supports the fan, and the second suction nozzle supplements the negative pressure airflow.

[0010] A further feature of this invention is that an air intake pipe is fixedly connected to the top of the fan, and an exhaust pipe is fixedly connected to the bottom of the fan.

[0011] By adopting the above technical solution, the exhaust duct is used for suction, and some of the waste gas enters the exhaust duct.

[0012] A further feature of this invention is that a connecting pipe is fixedly connected to the other side of the negative pressure ring, and an air supply pipe is fixedly connected to one end of the exhaust pipe.

[0013] By adopting the above technical solution, the exhaust gas enters the gas supply pipe and continues to flow, and all the exhaust gas is collected in the connecting pipe.

[0014] A further feature of this invention is that the air supply pipe penetrates the outer surface of the connecting pipe, and a filter pipe is movably installed at one end of the connecting pipe.

[0015] By adopting the above technical solution, the exhaust gas enters the filter pipe in a concentrated manner and is filtered by the filter pipe in a directional manner.

[0016] A further feature of this invention is that a threaded ring is fixedly connected to one end of the filter tube, and a threaded groove is provided at one end of the connecting tube.

[0017] By adopting the above technical solution, the threaded ring and the threaded groove are connected by a thread, and the filter tube can be disassembled.

[0018] A further feature of this invention is that a guide tube is movably installed at the other end of the filter tube, and a second threaded groove is provided at one end of the guide tube.

[0019] By adopting the above technical solution, the filtered gas enters the guide pipe and is discharged to the required location.

[0020] A further feature of this invention is that a second threaded ring is fixedly connected to the other end of the filter tube, and the outer surface of the second threaded ring is threadedly connected to the second threaded groove.

[0021] By adopting the above technical solution, the outer surface of the second threaded ring and the second threaded groove can be disassembled and separated, making it easy to replace.

[0022] A further feature of this invention is that the inner wall of the filter tube is fixedly connected with three filter screens.

[0023] By adopting the above technical solution, the exhaust gas is filtered by three filters, resulting in a stronger multi-filtration effect.

[0024] A further feature of this invention is that an adsorption cotton layer is fixedly connected to the inner wall of the filter screen, and activated carbon particles are disposed inside the adsorption cotton layer.

[0025] By adopting the above technical solution, the adsorption cotton layer and activated carbon particles adsorb impurities, thereby treating the waste gas.

[0026] The beneficial effects of this utility model are as follows: When the operator uses the equipment, when the mesh belt kiln generates internal waste gas, the waste gas enters the exhaust pipe, causing the waste gas to flow towards the bend. At this time, the blower starts, venting the air inside the negative pressure ring, creating a negative pressure inside the ring. This allows the connecting pipe to draw in the gas, driving the arc-shaped pipe to draw in the gas. The suction nozzle replenishes the negative pressure airflow to the bottom of the bend, and the inclined suction pipe tilts downward to compensate for the airflow. Under the action of suction, the waste gas is guided to flow upward, and some of the waste gas is drawn away by the suction nozzle and the inclined suction pipe. The gas pressure inside the bend is actively controlled by the blower, creating a certain negative pressure environment inside the bend, changing the local pressure distribution, and preventing the waste gas flow from being obstructed. Force generates backflow, thereby enhancing the directional flow and removal of exhaust gas, making the exhaust gas discharge smoother. The support frame supports the fan, the second suction nozzle supplements the negative pressure airflow, the exhaust pipe draws in some exhaust gas, some of which enters the exhaust pipe and continues to flow into the air supply pipe. All exhaust gas is collected in the connecting pipe and enters the filter pipe, where it is directionally filtered. The threaded ring and threaded groove are threadedly connected, and the filter pipe can be disassembled. The filtered gas enters the guide pipe and is discharged to the required position. The outer surface of the second threaded ring and the second threaded groove can be disassembled and separated for easy replacement. The exhaust gas is filtered by three filter screens, resulting in a stronger multi-filtration effect. The adsorption cotton layer and activated carbon particles adsorb impurities, treating the exhaust gas. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of this utility model;

[0029] Figure 2 This is a schematic diagram of the bent pipe structure of this utility model;

[0030] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A;

[0031] Figure 4 This is a schematic diagram of the filter structure of this utility model.

[0032] In the diagram, 1. Mesh belt kiln body; 2. Exhaust pipe; 3. Bend; 4. Guide pipe; 5. Negative pressure ring; 6. Connecting pipe; 7. Arc-shaped pipe; 8. Suction nozzle; 9. Inclined suction pipe; 10. Fan; 11. Support frame; 12. Second suction nozzle; 13. Air intake pipe; 14. Exhaust pipe; 15. Connecting pipe; 16. Air supply pipe; 17. Filter pipe; 18. Threaded ring; 19. Threaded groove; 20. Guide pipe; 21. Second threaded groove; 22. Second threaded ring; 23. Filter screen; 24. Adsorption cotton layer; 25. Activated carbon particles. Detailed Implementation

[0033] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0034] Reference Figure 1-4A device for targeted exhaust gas removal from a mesh belt kiln includes a mesh belt kiln body 1. An exhaust pipe 2 is fixedly connected to the top of the kiln body 1. A bent pipe 3 is fixedly connected to the top of the exhaust pipe 2. A guide pipe 4 is fixedly connected to one end of the bent pipe 3. A negative pressure ring 5 is fixedly connected to one end of the guide pipe 4. A connecting pipe 6 is fixedly connected to one side of the negative pressure ring 5. An arc-shaped pipe 7 is fixedly connected to the inner wall of the bent pipe 3. The connecting pipe 6 extends into the interior of the arc-shaped pipe 7. A suction nozzle 8 is fixedly connected to the bottom of the arc-shaped pipe 7. An inclined suction pipe 9 is fixedly connected to the outer surface of the arc-shaped pipe 7. A fan 10 is fixedly connected to the bottom of the negative pressure ring 5. When the kiln body 1 generates exhaust gas, the exhaust gas enters the exhaust pipe 2, and then flows towards the bent pipe 3. At this time, the fan 10 starts, and the exhaust gas is discharged... The air inside the negative pressure ring 5 creates a negative pressure inside the ring, which allows the connecting pipe 6 to draw in air, driving the arc-shaped pipe 7 to draw in air. The suction nozzle 8 supplements the bottom of the bent pipe 3 with negative pressure airflow. The inclined suction pipe 9 tilts downward to compensate for the airflow. Under the action of suction, the exhaust gas is guided to flow upward. Some of the exhaust gas is sucked away by the suction nozzle 8 and the inclined suction pipe 9. The gas pressure inside the bent pipe 3 is actively controlled by the fan 10, creating a certain negative pressure environment inside the bent pipe 3, changing the local air pressure distribution, and preventing the exhaust gas from being resisted and causing backflow. This enhances the directional flow and discharge of exhaust gas, making the exhaust gas discharge smoother. A support frame 11 is fixedly connected to the outer surface of the fan 10, and a second suction nozzle 12 is fixedly connected to the inner wall of the negative pressure ring 5. The support frame 11 supports the fan 10, and the second suction nozzle... 12. Supplementing negative pressure airflow, the top of the fan 10 is fixedly connected to the exhaust pipe 13, and the bottom of the fan 10 is fixedly connected to the exhaust pipe 14. The exhaust pipe 13 draws in some of the exhaust gas, which then enters the exhaust pipe 14. The other side of the negative pressure ring 5 is fixedly connected to the connecting pipe 15. One end of the exhaust pipe 14 is fixedly connected to the air supply pipe 16, which allows the exhaust gas to continue flowing. All the exhaust gas is collected in the connecting pipe 15, which is penetrated by the air supply pipe 16. A filter pipe 17 is movably installed at one end of the connecting pipe 15, allowing the exhaust gas to enter the filter pipe 17 and be filtered in a specific direction. One end of the filter pipe 17 is fixedly connected to a threaded ring 18, and one end of the connecting pipe 15 has a threaded groove 19. The threaded ring 18 is threadedly connected to the threaded groove 19, and the filter pipe 17 can... The filter tube 17 is detachable. A guide tube 20 is movably installed at the other end of the filter tube 17. One end of the guide tube 20 has a second threaded groove 21. Filtered gas enters the guide tube 20 and is discharged to the desired location. A second threaded ring 22 is fixedly connected to the other end of the filter tube 17. The outer surface of the second threaded ring 22 is threadedly connected to the second threaded groove 21. The outer surface of the second threaded ring 22 and the second threaded groove 21 can be detached for easy replacement. Three filter screens 23 are fixedly connected to the inner wall of the filter tube 17. The exhaust gas is filtered by the three filter screens 23, resulting in a stronger multi-layer filtration effect. An adsorption cotton layer 24 is fixedly connected to the inner wall of the filter screen 23. Activated carbon particles 25 are arranged inside the adsorption cotton layer 24. The adsorption cotton layer 24 and the activated carbon particles 25 adsorb impurities.The exhaust gas is treated.

[0035] In this invention, when the operator uses the kiln, waste gas is generated inside the mesh belt kiln body 1. This waste gas enters the exhaust pipe 2 and flows towards the bend pipe 3. At this time, the blower 10 starts, venting the air inside the negative pressure ring 5, creating a negative pressure inside the ring 5. This causes the connecting pipe 6 to draw in the gas, which in turn drives the arc-shaped pipe 7 to draw in the gas. The suction nozzle 8 supplements the bottom of the bend pipe 3 with negative pressure airflow, and the inclined suction pipe 9 tilts downwards to compensate for the airflow. Under the action of suction, the waste gas is guided upwards, and some of the waste gas is drawn away by the suction nozzle 8 and the inclined suction pipe 9. The gas pressure inside the bend pipe 3 is actively controlled by the blower 10, creating a certain negative pressure environment inside the bend pipe 3. This changes the local pressure distribution, preventing the waste gas from being resisted and causing backflow, thereby enhancing the efficiency of waste gas treatment. The directional flow of air ensures smoother exhaust. The support frame 11 supports the fan 10, the second suction nozzle 12 supplements the negative pressure airflow, the exhaust pipe 13 draws in the exhaust gas, some of which enters the exhaust pipe 14 and continues to flow into the air supply pipe 16. All the exhaust gas is collected in the connecting pipe 15 and enters the filter pipe 17, where it is filtered in a directional manner. The threaded ring 18 is threadedly connected to the threaded groove 19, and the filter pipe 17 can be disassembled. The filtered gas enters the guide pipe 20 and is discharged to the required position. The outer surface of the second threaded ring 22 and the second threaded groove 21 can be disassembled and separated for easy replacement. The exhaust gas is filtered by three filter screens 23, resulting in a stronger multi-layer filtration effect. The adsorption cotton layer 24 and activated carbon particles 25 adsorb impurities, thus treating the exhaust gas.

Claims

1. A device for targeted exhaust gas removal from a mesh belt kiln, comprising a mesh belt kiln body (1), characterized in that: An exhaust pipe (2) is fixedly connected to the top of the mesh belt kiln body (1). A bend pipe (3) is fixedly connected to the top of the exhaust pipe (2). A guide pipe (4) is fixedly connected to one end of the bend pipe (3). A negative pressure ring (5) is fixedly connected to one end of the guide pipe (4). A connecting pipe (6) is fixedly connected to one side of the negative pressure ring (5). An arc-shaped pipe (7) is fixedly connected to the inner wall of the bend pipe (3). The connecting pipe (6) extends into the interior of the arc-shaped pipe (7). A suction nozzle (8) is fixedly connected to the bottom of the arc-shaped pipe (7). An inclined suction pipe (9) is fixedly connected to the outer surface of the arc-shaped pipe (7). A fan (10) is fixedly connected to the bottom of the negative pressure ring (5).

2. The mesh belt kiln exhaust gas fixed-point removal device according to claim 1, characterized in that: A support frame (11) is fixedly connected to the outer surface of the fan (10), and a second suction nozzle (12) is fixedly connected to the inner wall of the negative pressure ring (5).

3. The mesh belt kiln exhaust gas fixed-point removal device according to claim 1, characterized in that: The top of the fan (10) is fixedly connected to an air intake pipe (13), and the bottom of the fan (10) is fixedly connected to an exhaust pipe (14).

4. The mesh belt kiln exhaust gas fixed-point removal device according to claim 3, characterized in that: The other side of the negative pressure ring (5) is fixedly connected to a connecting pipe (15), and one end of the exhaust pipe (14) is fixedly connected to an air supply pipe (16).

5. The mesh belt kiln exhaust gas fixed-point removal device according to claim 4, characterized in that: The air supply pipe (16) penetrates the outer surface of the connecting pipe (15), and a filter pipe (17) is movably installed at one end of the connecting pipe (15).

6. The mesh belt kiln exhaust gas fixed-point removal device according to claim 5, characterized in that: One end of the filter tube (17) is fixedly connected to a threaded ring (18), and one end of the connecting tube (15) is provided with a threaded groove (19).

7. The mesh belt kiln exhaust gas fixed-point removal device according to claim 6, characterized in that: The other end of the filter tube (17) is movably fitted with a guide tube (20), and one end of the guide tube (20) is provided with a second threaded groove (21).

8. The mesh belt kiln exhaust gas fixed-point removal device according to claim 7, characterized in that: The other end of the filter tube (17) is fixedly connected to a second threaded ring (22), and the outer surface of the second threaded ring (22) is threadedly connected to the second threaded groove (21).

9. A mesh belt kiln exhaust gas fixed-point removal device according to claim 5, characterized in that: The inner wall of the filter tube (17) is fixedly connected with a filter screen (23), and the number of filter screens (23) is three.

10. A mesh belt kiln exhaust gas fixed-point removal device according to claim 9, characterized in that: An adsorption cotton layer (24) is fixedly connected to the inner wall of the filter (23), and activated carbon particles (25) are disposed inside the adsorption cotton layer (24).

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