Exhaust gas filtering mechanism and RTO regenerative combustion device

Abstract

The utility model discloses a waste gas filter mechanism and RTO heat accumulation type combustion device, including combustion chamber, the bottom of combustion chamber is provided with chamber subassembly, the bottom of combustion chamber is provided with the gas delivery subassembly for to the input waste gas of combustion chamber inside, the back of combustion chamber is provided with combustor, the bottom of combustion chamber is provided with the exhaust component for discharging gas, the gas delivery subassembly includes air inlet pipe, the middle part of air inlet pipe is provided with dust removal tank, the inside of dust removal tank is provided with the filter screen for filtering gas. The utility model discloses through setting up dust removal tank in the middle part of air inlet pipe, and setting up filter screen and quick detach assembly in the inside of dust removal tank, when waste gas passes through dust removal tank, the dust in waste gas is blocked through the filter screen in its inside, avoids the dust to enter the inside of combustion chamber, when needing to clean the dust, only needs to clean the cleaning box, reduces the work load of staff.

Description

Technical Field

[0001] This utility model relates to the technical field of waste gas treatment equipment, and in particular to a waste gas filtration mechanism and an RTO regenerative combustion device. Background Technology

[0002] Current regenerative thermal oxidizers (RTOs) heat the organic waste gas discharged from production through regenerative ceramics, rapidly raising its temperature. Under the heating effect of gas combustion in the furnace, the VOCs in the organic waste gas are directly decomposed into carbon dioxide and water vapor at this high temperature. However, during the treatment of waste gas, dust or other foreign objects in the waste gas will be carried into the interior of the device by the fan. This results in a large amount of dust entering the device during waste gas treatment. As the dust moves inside the equipment, it is necessary to clean the device, thus increasing the workload of the staff. Utility Model Content

[0003] The purpose of this invention is to provide an exhaust gas filtration mechanism and an RTO regenerative combustion device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a waste gas filtration mechanism and an RTO regenerative combustion device, comprising a combustion chamber, a chamber assembly at the bottom of the combustion chamber, a gas supply assembly at the bottom of the combustion chamber for inputting waste gas into the combustion chamber, a burner at the back of the combustion chamber, and an exhaust assembly at the bottom of the combustion chamber for discharging gas. The gas supply assembly includes an inlet pipe, a dust collection box at the middle of the inlet pipe, a filter screen for filtering gas inside the dust collection box, and a quick-release assembly inside the dust collection box.

[0005] Preferably, the chamber assembly includes a first chamber, a second chamber, and a preheating chamber arranged sequentially at the bottom of the combustion chamber, wherein honeycomb ceramic heat storage elements are interspersed on the inner walls of the first chamber, the second chamber, and the preheating chamber.

[0006] Preferably, the air intake pipe is inserted into the inner wall at the bottom of the first chamber, and a fan is provided in the middle of the air intake pipe.

[0007] Preferably, the exhaust assembly includes an exhaust chimney disposed on one side of the combustion chamber, an exhaust pipe being inserted and connected to one side of the exhaust chimney, and the end of the exhaust pipe being inserted and connected to the bottom of the second chamber and the first chamber.

[0008] Preferably, the quick-release assembly includes a positioning component and a pushing component disposed inside the dust collection box. The positioning component includes a fixing block symmetrically disposed on the inner wall of the top and bottom of the dust collection box. A limiting block is fixedly connected to one side of the fixing block. A positioning hole is symmetrically opened in the center of one side of the filter screen. The limiting block is inserted into the interior of the positioning hole.

[0009] Preferably, the pushing member includes a pushing block disposed on one side of the filter screen, a connecting block fixedly connected to one side of the pushing block, and a spring disposed on one side of the connecting block.

[0010] Preferably, a fixing frame is symmetrically fixedly connected to the inner wall of one side of the dust collection box, the spring is inserted into the inside of the fixing frame, and the connecting block is inserted into the inner wall of one side of the fixing frame.

[0011] Preferably, the chamber assembly further includes a reversing valve disposed at the connection between the intake pipe and the exhaust pipe.

[0012] Preferably, by using a timed switching mechanism with a reversing valve, the exhaust gas sequentially enters the first chamber, the second chamber, and the preheating chamber, with the honeycomb ceramic heat storage element in each chamber taking turns preheating the exhaust gas and absorbing the waste heat from combustion.

[0013] The technical effects and advantages of this utility model are as follows: This invention features a dust collection box located in the middle of the intake pipe, with a filter screen and quick-release assembly inside. As exhaust gas passes through the dust collection box, the filter screen blocks dust from entering the combustion chamber. When dust needs to be cleaned, only the cleaning box needs to be cleaned, reducing the workload of the staff. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a front sectional view of the present invention. Figure 3 This is a partial front sectional view of the structure of this utility model; Figure 4 This is a front cross-sectional view of the pusher component of this utility model.

[0015] In the diagram: 1. Combustion chamber; 2. Gas delivery assembly; 201. Inlet pipe; 202. Fan; 3. Chamber assembly; 301. First chamber; 302. Second chamber; 303. Preheating chamber; 4. Exhaust assembly; 401. Exhaust pipe; 402. Exhaust chimney; 5. Burner; 6. Honeycomb ceramic regenerator; 7. Dust collector; 8. Positioning component; 801. Fixing block; 802. Limiting block; 803. Positioning hole; 9. Pushing component; 901. Fixing frame; 902. Pushing block; 903. Connecting block; 904. Spring; 10. Filter screen. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] This utility model provides, for example Figure 1-4 The exhaust gas filtration mechanism and RTO regenerative combustion device shown include a combustion chamber 1, a chamber assembly 3 at the bottom of the combustion chamber 1, a gas supply assembly 2 for inputting exhaust gas into the combustion chamber 1 at the bottom of the combustion chamber 1, and a burner 5 at the back of the combustion chamber 1. The bottom of the combustion chamber 1 is provided with an exhaust assembly 4 for discharging gas. The gas supply assembly 2 includes an intake pipe 201. A dust collector 7 is provided in the middle of the intake pipe 201. A filter screen 10 for filtering gas is provided inside the dust collector 7. A quick-release assembly is provided inside the dust collector 7. The chamber assembly 3 includes a first chamber 301, a second chamber 302 and a preheating chamber 303 arranged sequentially at the bottom of the combustion chamber 1. The inner walls of the middle of the first chamber 301, the second chamber 302 and the preheating chamber 303 are all connected with honeycomb ceramic heat storage bodies 6. The intake pipe 201 is connected to the inner wall at the bottom of the first chamber 301. A fan 202 is provided in the middle of the intake pipe 201. The exhaust assembly 4 includes an exhaust chimney 402 arranged on one side of the combustion chamber 1. An exhaust pipe 401 is connected to one side of the exhaust chimney 402. The end of the exhaust pipe 401 is connected to the bottom of the second chamber 302 and the first chamber 301.

[0018] It should be noted that the inner wall of combustion chamber 1 is insulated with heat-insulating material, which can be refractory bricks. During use, this insulation prevents heat transfer to the outside of combustion chamber 1, thereby reducing heat consumption. A gas supply pipe for introducing oxygen into combustion chamber 1 can be installed on the back of combustion chamber 1. The burner 5 is a natural gas burner of model XGF-002, used to heat the interior of combustion chamber 1. Honeycomb ceramic heat storage elements 6 are installed inside the first chamber 301, the second chamber 302, and the preheating chamber 303. The ceramic heat storage body 6 is honeycomb shaped. As the gas passes through the ceramic heat storage body, its main function is to absorb and store the heat released by the burner 5 and release the heat when needed, thereby improving the thermal energy utilization efficiency. When the exhaust gas is introduced into the preheating chamber 303 through the intake pipe 201, it is preheated by the ceramic heat storage body that absorbs heat, thereby heating the exhaust gas in advance and reducing the energy consumed by the exhaust gas in the combustion chamber 1. The fan 202 is an existing centrifugal fan, which is used to transport the exhaust gas into the preheating chamber 303 during use.

[0019] The chamber assembly 3 also includes a reversing valve (not shown in the figure), which is located at the connection between the intake pipe 201 and the exhaust pipe 401. By switching the reversing valve at time, the exhaust gas enters the first chamber 301, the second chamber 302 and the preheating chamber 303 in sequence. The honeycomb ceramic heat storage body 6 in each chamber takes turns preheating the exhaust gas and absorbing the waste heat from combustion. Furthermore, during the exhaust gas treatment process, the exhaust gas first enters the preheating chamber 303, where it is preheated by the honeycomb ceramic heat storage body 6, and then enters the combustion chamber 1. At a high temperature of over 760 degrees Celsius, VOCs react with oxygen to produce harmless carbon dioxide and water vapor. Most of the heat generated during the oxidation process is absorbed and stored by the honeycomb ceramic heat storage body 6, and then used to preheat the subsequently entering low-temperature exhaust gas, thereby reducing fuel consumption.

[0020] Specifically, the quick-release assembly includes a positioning component 8 and a pushing component 9 disposed inside the dust collection box 7. The positioning component 8 includes a fixing block 801 symmetrically disposed on the inner wall of the top and bottom of the dust collection box 7. A limiting block 802 is fixedly connected to one side of the fixing block 801. A positioning hole 803 is symmetrically opened on one side of the filter screen 10. The limiting block 802 is inserted into the positioning hole 803. The pushing component 9 includes a pushing block 902 disposed on one side of the filter screen 10. A connecting block 903 is fixedly connected to one side of the pushing block 902. A spring 904 is disposed on one side of the connecting block 903. A fixing frame 901 is symmetrically fixedly connected to the inner wall of one side of the dust collection box 7. The spring 904 is inserted into the inside of the fixing frame 901. The connecting block 903 is inserted into the inner wall of one side of the fixing frame 901.

[0021] It should be noted that the filter screen 10 has holes for blocking dust, the diameter of which is between one and two micrometers. The dust collection box 7 consists of a box body and a door, which are connected by bolts. A sealing ring is provided at the connection point to prevent exhaust gas from escaping from the connection point. The positioning hole 803 on the filter screen 10 is adapted to the limiting block 802. The limiting block 802 is fixed inside the dust collection box 7 by the fixing block 801. When it is necessary to fix the position of the filter screen 10. The filter screen 10 is directly fitted onto the middle of the limiting block 802 through the positioning hole 803. By moving the position of the pushing block 902, the filter screen 10 is clamped between the pushing block 902 and the fixing block 801. The limiting block 802 restricts the filter screen 10 from moving out of the pushing block 902 and the fixing block 801, thereby fixing the position of the filter screen 10. When the dust collector 7 is filled with exhaust gas, the exhaust gas pushes the filter screen 10 toward one side of the fixed block 801. The horizontal longitudinal section of the connecting block 903 is T-shaped, with one end inserted into the inside of the fixed frame 901. One end of the spring 904 is fixedly connected to the inner wall of one side of the fixed frame 901, and the other end is fixedly connected to one side of the connecting block 903. When in use, the connecting block 903 is used to push the filter screen 10 to one side; when the filter screen 10 needs to be removed, the filter screen 10 is directly pushed to one side of the pushing block 902, and the limiting block 802 on one side of the fixing block 801 is moved out of the positioning hole opened on the filter screen 10, and then the filter screen 10, which is no longer restricted, can be removed.

[0022] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A waste gas filtration mechanism and an RTO regenerative combustion device, comprising a combustion chamber (1), characterized in that, The bottom of the combustion chamber (1) is provided with a chamber assembly (3), the bottom of the combustion chamber (1) is provided with a gas supply assembly (2) for inputting exhaust gas into the combustion chamber (1), the back of the combustion chamber (1) is provided with a burner (5), the bottom of the combustion chamber (1) is provided with an exhaust assembly (4) for discharging gas, the gas supply assembly (2) includes an air inlet pipe (201), the middle of the air inlet pipe (201) is provided with a dust collection box (7), the inside of the dust collection box (7) is provided with a filter screen (10) for filtering gas, and the inside of the dust collection box (7) is provided with a quick-release assembly.

2. The exhaust gas filtration mechanism and RTO regenerative combustion device according to claim 1, characterized in that, The chamber assembly (3) includes a first chamber (301), a second chamber (302) and a preheating chamber (303) arranged sequentially at the bottom of the combustion chamber (1). The inner walls of the first chamber (301), the second chamber (302) and the preheating chamber (303) are all connected with honeycomb ceramic heat storage bodies (6).

3. The exhaust gas filtration mechanism and RTO regenerative combustion device according to claim 2, characterized in that, The air intake pipe (201) is inserted into the inner wall at the bottom of the first chamber (301), and a fan (202) is provided in the middle of the air intake pipe (201).

4. The exhaust gas filtration mechanism and RTO regenerative combustion device according to claim 1, characterized in that, The exhaust assembly (4) includes an exhaust chimney (402) disposed on one side of the combustion chamber (1), an exhaust pipe (401) is inserted and connected to one side of the exhaust chimney (402), and the end of the exhaust pipe (401) is inserted and connected to the bottom of the second chamber (302) and the first chamber (301).

5. The exhaust gas filtration mechanism and RTO regenerative combustion device according to claim 1, characterized in that, The quick-release assembly includes a positioning component (8) and a pushing component (9) disposed inside the dust collection box (7). The positioning component (8) includes a fixing block (801) symmetrically disposed on the inner wall of the top and bottom of the dust collection box (7). A limiting block (802) is fixedly connected to one side of the fixing block (801). A positioning hole (803) is symmetrically opened in the center of one side of the filter screen (10). The limiting block (802) is inserted into the interior of the positioning hole (803).

6. The exhaust gas filtration mechanism and RTO regenerative combustion device according to claim 5, characterized in that, The pusher (9) includes a push block (902) disposed on one side of the filter screen (10), a connecting block (903) is fixedly connected to one side of the push block (902), and a spring (904) is disposed on one side of the connecting block (903).

7. The exhaust gas filtration mechanism and RTO regenerative combustion device according to claim 6, characterized in that, A fixed frame (901) is symmetrically fixed to the inner wall of one side of the dust collector (7). The spring (904) is inserted into the inside of the fixed frame (901), and the connecting block (903) is inserted into the inner wall of one side of the fixed frame (901).

8. The exhaust gas filtration mechanism and RTO regenerative combustion device according to claim 7, characterized in that, The chamber assembly (3) also includes a reversing valve located at the connection between the intake pipe (201) and the exhaust pipe (401).

9. The exhaust gas filtration mechanism and RTO regenerative combustion device according to claim 7, characterized in that, By switching the reversing valve at time, the exhaust gas enters the first chamber (301), the second chamber (302) and the preheating chamber (303) in sequence. The honeycomb ceramic heat storage body (6) in each chamber takes turns preheating the exhaust gas and absorbing the residual heat of combustion.

Images