A waste gas treatment system and treatment process using porous medium burner

Abstract

The present invention discloses an exhaust gas treatment system and treatment process using a porous medium burner, specifically relates to the technical field of exhaust gas treatment, including a base, a support frame installed on one side of the upper surface of the base, a combustion chamber installed on the support frame, a combustion mechanism for providing combustion installed in the combustion chamber, and the combustion mechanism is used to complete the combustion purification of the exhaust gas. The present invention completes the active mixing and turbulence of the mixed gas through a mixing mechanism, and will not cause obstruction to the circulation of the mixed gas. The mixing mechanism can complete the primary mixing and secondary mixing switching of the mixed gas. At the same time, the sensing mechanism can complete the active sensing of the exhaust gas pressure in the conveying pipeline, and synchronously transmit the sensed movement amount to the introduction mechanism, and complete the active control of the feeding amount of the introduction mechanism, so as to achieve a stable state, avoid the problem of incomplete combustion caused by excessive exhaust gas in the conveying pipeline, and improve the overall processing efficiency and processing accuracy.

Description

Technical Field

[0001] The invention relates to the technical field of waste gas treatment, and in particular to a waste gas treatment system and treatment process using a porous medium burner. Background Art

[0002] In the mining, production, storage and transportation of oil, coal and natural gas, petrochemical, chemical industry, coal chemical industry, fuel coating manufacturing, solvent manufacturing and use, etc., volatile organic compounds will evaporate into the atmosphere in various links such as loading and unloading. The commonly used methods for treating organic waste gas are adsorption, combustion and biological purification.

[0003] For a long time, the existing traditional thermal oxidizers have adopted burner configurations, and most of them use diffusion burners to heat the furnace. Under stable operating conditions, stable calorific value, and low load operating conditions, temperature increase combustion can be achieved. However, under high concentration, calorific value, air volume and other parameters frequently change conditions, the use of traditional thermal oxidizers can easily lead to uneven burner combustion areas, causing burner flashback, thereby reducing the service life of the burner.

[0004] A non-uniform porous medium burner for treating organic waste gas is disclosed in a patent application with reference publication number CN107023842A. The premixing chamber of the waste gas burner is circumferentially provided with a rotationally symmetrical air inlet duct, and the mixing chamber is filled with alumina balls to fully mix the organic waste gas with air and oxygen, thereby improving the combustion efficiency, and improving the combustion efficiency and combustion stability of the organic waste gas.

[0005] The above-mentioned waste gas burner adopts the cooperation of a porous medium burner and a premixing chamber to improve the combustion efficiency and combustion stability of organic waste gas. However, the premixing chamber adopts small balls to mix the gas. The small balls are easy to cause obstruction when the waste gas flows, making the waste gas flow unsmooth, affecting the combustion accuracy and combustion efficiency. At the same time, the premixing chamber cannot complete the secondary mixing of the gas, and cannot actively adjust the gas mixing effect according to the combustion requirements;

[0006] At the same time, the above-mentioned exhaust gas burner cannot actively sense and control the gas pressure in the pipeline. Changes in the amount of exhaust gas in the pipeline can easily interfere with the combustion conditions, affecting the combustion accuracy, and easily causing incomplete combustion problems, increasing the subsequent purification workload, which is not conducive to the stable progress of exhaust gas treatment work. Summary of the invention

[0007] The object of the present invention is to provide a waste gas treatment system and treatment process using a porous medium burner to solve the above technical problems.

[0008] To solve the above technical problems, the present invention is implemented through the following technical solutions.

[0009] The present invention is an exhaust gas treatment system using a porous medium burner, comprising a base, a support frame installed on one side of the upper surface of the base, a combustion chamber installed on the support frame, a combustion mechanism for providing combustion installed in the combustion chamber, combustion purification of the exhaust gas is completed through the combustion mechanism, a mixing mechanism is connected to the bottom of the combustion chamber, the mixing mechanism and the combustion mechanism are arranged in coordination, the mixing mechanism is used to switch and mix the exhaust gas, an introduction mechanism is connected to one side of the bottom of the mixing mechanism, the introduction mechanism is used to introduce different types of gases into the mixing mechanism, the exhaust gas is uniformly guided to the combustion mechanism through the mixing mechanism for combustion purification treatment, a sensing mechanism is added in the mixing mechanism, and the sensing mechanism can actively fine-tune the sensing intensity, and the sensing mechanism and the introduction mechanism are linked to complete active control of the gas.

[0010] Furthermore, the combustion mechanism includes a porous medium burner arranged at the bottom of the combustion chamber, and an igniter is installed above the porous medium burner on one side of the combustion chamber.

[0011] Furthermore, the mixing mechanism includes a delivery pipe connected and installed at the bottom of the combustion chamber, a mixing chamber is detachably installed at the bottom of the delivery pipe, a main pipe is connected and installed on one side of the bottom of the mixing chamber, and sleeve members are concentrically arranged at intervals through a bracket in the mixing chamber close to the delivery pipe, an air supply channel is formed between the side wall of the sleeve member and the mixing chamber, a No. 1 mixer is installed at the bottom of the mixing chamber, a No. 2 mixer is installed at the top of the sleeve member, and a switching member is arranged between the No. 1 mixer and the No. 2 mixer in the mixing chamber, and the active switching and drainage of the exhaust gas is completed by the switching member.

[0012] Furthermore, the structure of the No. 1 mixer is consistent with that of the No. 2 mixer, and both the No. 1 mixer and the No. 2 mixer include an outer ring, a center block and a plurality of spoiler blades. The outer rings of the No. 1 mixer and the No. 2 mixer are correspondingly arranged at the bottom of the mixing chamber and the top of the sleeve, the center block is arranged at the center of the outer ring, and the plurality of spoiler blades are evenly distributed between the outer ring and the center block.

[0013] Furthermore, the switching member includes a hollow circular plate installed at the bottom of the sleeve member, a blocking plate is installed on the top of the hollow circular plate in a sliding and sealing manner, two trigger rods are symmetrically installed on the lower surface of the blocking plate, and an electric cylinder is installed on one side of the bottom of the mixing chamber. The output end of the electric cylinder is connected to the two trigger rods through a bracket, and a sealing ring is installed in the mixing chamber in a sliding and engaging manner, and the sealing ring is detachably fixedly connected to the two trigger rods through the bracket.

[0014] Furthermore, a conveying orifice plate is detachably installed on one side of the conveying pipeline near the porous medium burner, and a driving shaft is rotatably installed at the bottom center of the conveying orifice plate. A reduction motor is installed on the base, which is transmission-connected to the driving shaft, and a scraper is detachably installed on the top of the driving shaft.

[0015] Furthermore, the introduction mechanism includes an exhaust gas tank, a combustion air tank and a fuel gas tank installed side by side on the upper surface of the base, a distributor is installed at the tail end of the main pipeline, a partition is installed on the main pipeline, the partition is connected to the main pipeline, a sliding area is opened on the top of the partition, a sealing piece is slidably installed in the sliding area, a ventilation area cooperating with the main pipeline is opened through the sealing piece, and two reset springs are symmetrically installed between the bottom of the sealing piece and the sliding area.

[0016] Furthermore, the sensing mechanism includes a sensing plate that is slidably engaged in the conveying pipe, a flow area is opened through the middle position of the sensing plate, a pull rope is installed at the bottom of the sensing plate, the bottom of the pull rope slides through one side of the conveying pipe and is detachably fixedly connected to the top of the blocking member, an annular member is rotatably installed in the conveying pipe above the sensing plate, and an annular area is concave inwardly provided at the top of the annular member, a gear ring is concentrically installed in the annular area, and a worm is rotatably passed through the conveying pipe, the worm is meshed with the gear ring, a plurality of triggering areas are opened in a circular array at the bottom of the annular member, inclined guide surfaces are provided on both sides of the inner wall of each triggering area, a horizontal platform is truncated at the middle position of each inclined guide surface, the inclined guide surface is separated into a first inclined surface and a second inclined surface by the horizontal platform, a plurality of flexible members are provided in a circular array on the top of the sensing plate, and the tops of the plurality of flexible members are in contact with the bottom of the triggering area.

[0017] Furthermore, each flexible part includes a sensing rod installed on the top of the sensing plate, a No. 1 plate is fixedly installed on the top of the sensing rod, a No. 2 plate is slidably sleeved on the outside of the sensing rod, a plurality of pressure rods are installed on the top of the No. 2 plate, rollers are rotatably installed on the top of the plurality of pressure rods through brackets, the rollers are in contact with the No. 1 inclined surface, the horizontal platform and the No. 2 inclined surface, and a plurality of pressure rods are correspondingly slidably arranged through the No. 1 plate, and a flexible spring is sleeved on the outside of the sensing rod.

[0018] The present invention also provides a waste gas treatment process using a porous medium burner, the treatment process specifically comprising the following steps:

[0019] Step 1: First, the exhaust gas, combustion-supporting air and fuel gas are connected to the introduction mechanism respectively, and then the mixed gas of the exhaust gas, combustion-supporting air and fuel gas is sent into the mixing mechanism through the main pipeline;

[0020] Step 2: Actively mix and turbulently mix the mixed gas through the mixing mechanism, so that the exhaust gas, combustion air and fuel gas are fully mixed;

[0021] Step 3: The mixed gas is introduced into the combustion mechanism for purification;

[0022] Step 4: Actively sense the exhaust gas pressure in the delivery pipeline through the sensing mechanism, and synchronously transmit the sensed movement amount to the introduction mechanism to complete active control of the delivery amount of the introduction mechanism.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The present invention is provided with a mixing mechanism, which completes the active mixing turbulence of the mixed gas through the mixing mechanism, so that the exhaust gas, the combustion-supporting air and the fuel gas are fully mixed, and the circulation of the mixed gas is not blocked. At the same time, the mixing mechanism can complete active switching, thereby completing the primary mixing and the secondary mixing switching of the mixed gas, and can actively control the mixing accuracy of the mixed gas to avoid interference with subsequent combustion;

[0025] 2. The present invention is provided with a sensing mechanism, which can actively sense the exhaust gas pressure in the conveying pipeline, and synchronously transmit the sensed movement amount to the introduction mechanism, so as to actively control the feeding amount of the introduction mechanism, thereby achieving a stable state, avoiding the problem of incomplete combustion caused by excessive exhaust gas in the conveying pipeline, improving the overall processing efficiency and processing accuracy, and at the same time, actively adjusting the sensing strength of the sensing plate, so as to meet the adjustment and use of different working environments;

[0026] 3. The present invention is provided with an introduction mechanism to connect the exhaust gas, combustion-supporting air and fuel gas with the exhaust gas tank, combustion-supporting air tank and fuel gas tank respectively. The exhaust gas is subsequently sent into the delivery pipeline, and the exhaust gas is evenly distributed through the delivery orifice plate, and then sent into the porous medium burner to complete combustion, thereby ensuring uniform distribution of the exhaust gas. At the same time, the reduction motor is started to drive the drive shaft and the scraper to rotate, and the delivery orifice plate is scraped and cleaned by the rotation of the scraper, thereby reducing the difficulty of manual cleaning.

[0027] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is the overall front view of the present invention;

[0029] Figure 2 It is a schematic diagram of the distribution of the introduction mechanism and the combustion chamber of the present invention;

[0030] Figure 3 It is a schematic diagram of the connection between the combustion chamber and the delivery pipeline of the present invention;

[0031] Figure 4 It is a schematic diagram of the distribution of the introduction mechanism and the mixing mechanism of the present invention;

[0032] Figure 5 It is a schematic diagram of the interior of the delivery pipeline of the present invention;

[0033] Figure 6 It is a schematic diagram of the interior of the mixing chamber of the present invention;

[0034] Figure 7 It is a schematic diagram of the mixing mechanism of the present invention;

[0035] Figure 8 This is a schematic diagram of installing the sensing mechanism of the present invention in a conveying pipeline;

[0036] Fig. 9 It is a schematic diagram of the connection between the combustion mechanism and the delivery pipeline of the present invention;

[0037] Fig.10 This is a schematic diagram of the distribution of the sensing mechanism and the combustion mechanism of the present invention;

[0038] Fig.11 It is a schematic diagram of the sensing mechanism of the present invention;

[0039] Fig.12 It is a schematic diagram of the distribution of the sensing plate and the annular member of the present invention;

[0040] Fig.13 It is a schematic diagram of the structure of the flexible member of the present invention;

[0041] Fig.14 It is a schematic diagram of the distribution of the triggering area on the ring member of the present invention.

[0042] In the figure: 1, base; 2, support frame; 3, combustion chamber; 4, chimney; 5, porous medium burner; 6, igniter; 7, conveying pipeline; 8, mixing chamber; 9, main pipeline; 10, sleeve member; 11, air supply channel; 12, No. 1 mixer; 121, outer ring; 122, center block; 123, spoiler blade; 13, No. 2 mixer; 14, switching member; 141, hollow circular plate; 142, blocking plate; 143, retaining frame; 144, trigger rod; 145, electric cylinder; 146, sealing ring; 15, conveying orifice plate; 16, driving shaft; 17, reduction motor; 18, scraper; 19, waste Gas tank; 20. Combustion air tank; 21. Fuel gas tank; 22. Distributor; 23. Partition; 24. Sliding area; 25. Sealing part; 26. Ventilation area; 27. Reset spring; 28. Sensing plate; 29. ​​Flow area; 30. Pull rope; 31. Ring; 32. Ring area; 33. Gear ring; 34. Worm; 35. Trigger area; 36. Inclined guide surface; 361. Horizontal platform; 362. Inclined surface No. 1; 363. Inclined surface No. 2; 37. Flexible part; 371. Sensing rod; 372. Plate No. 1; 373. Plate No. 2; 374. Pressure rod; 375. Roller; 376. Flexible spring. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0044] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0045] Embodiment 1: The present invention provides a technical solution: Figures 1 to 14 As shown, a waste gas treatment system using a porous medium burner includes a base 1, a support frame 2 is installed on one side of the upper surface of the base 1, and a control box is installed on the other side of the upper surface of the base 1. The control box establishes connections with the combustion mechanism, the mixing mechanism, the introduction mechanism and the sensing mechanism to complete the control. A combustion chamber 3 is installed on the support frame 2. The top and bottom of the combustion chamber 3 are open, and a chimney 4 is installed on the top of the combustion chamber 3. A high-temperature resistant layer is installed in the combustion chamber 3 and the chimney 4. A combustion mechanism for providing combustion is installed in the combustion chamber 3, and the combustion mechanism is used to complete the combustion purification of the waste gas. A mixing mechanism is connected to the bottom of the combustion chamber 3, and the mixing mechanism is coordinated with the combustion mechanism. The mixing mechanism is used to switch and mix the waste gas. An introduction mechanism is connected to one side of the bottom of the mixing mechanism. The introduction mechanism is used to introduce different types of gases into the mixing mechanism, and the waste gas is uniformly guided to the combustion mechanism through the mixing mechanism for combustion purification. At the same time, a sensing mechanism is added in the mixing mechanism, and the sensing mechanism can actively fine-tune the sensing intensity. The sensing mechanism and the introduction mechanism are linked to complete the active control of the gas;

[0046] The combustion mechanism includes a porous medium burner 5 disposed at the bottom of the combustion chamber 3, an ignition pipe is connected to one side of the porous medium burner 5, and an igniter 6 is installed above the porous medium burner 5 on one side of the combustion chamber 3, and the porous medium burner 5 is ignited by the igniter 6;

[0047] It should be noted that: when the exhaust gas is burned, the exhaust gas enters the porous medium burner 5 for combustion through a combustion mechanism, and at the same time, the porous medium burner 5 is turned on through the ignition pipe and the igniter 6, and then the porous medium burner 5 can perform combustion purification work, and the gas purified by the porous medium burner 5 is discharged through the chimney 4.

[0048] Embodiment 2: Based on the mixing mechanism provided in Embodiment 1, this embodiment provides a further technical solution of the mixing mechanism.

[0049] like Figures 5 to 7 As shown, the mixing mechanism includes a delivery pipe 7 connected and installed at the bottom of the combustion chamber 3, a mixing chamber 8 is detachably installed at the bottom of the delivery pipe 7, the mixing chamber 8 is closed at the bottom and open at the top, a main pipe 9 is connected and installed at one side of the bottom of the mixing chamber 8, and a sleeve member 10 is concentrically arranged at intervals through a bracket in the mixing chamber 8 near the delivery pipe 7, the top and bottom of the sleeve member 10 are both open, the top of the sleeve member 10 is interconnected with the delivery pipe 7, an air supply channel 11 is formed between the side wall of the sleeve member 10 and the mixing chamber 8, the air supply channel 11 is connected with the delivery pipe 7, a No. 1 mixer 12 is installed at the bottom of the mixing chamber 8, a No. 2 mixer 13 is installed at the top of the sleeve member 10, and a switching member 14 is arranged between the No. 1 mixer 12 and the No. 2 mixer 13 in the mixing chamber 8, and the active switching and drainage of the exhaust gas is completed by the switching member 14;

[0050] It is worth noting that: when the exhaust gas is mixed, a mixing mechanism is provided. When the exhaust gas is mixed once, the exhaust gas is sent into the mixing chamber 8 through the main pipe 9 and contacts the first mixer 12. The exhaust gas is disturbed by the spoiler blades 123 on the first mixer 12, so that the exhaust gas is mixed in the mixing chamber 8. After that, the mixed exhaust gas enters the delivery pipe 7 through the air supply channel 11 to complete the delivery of the exhaust gas. When the secondary mixing is performed, the electric cylinder 145 is started at this time to push the two trigger rods 144 upward, and the sealing ring 146 and the blocking plate 142 are pushed upward by the two trigger rods 144 to follow and move upward, so that The sealing ring 146 blocks the air supply channel 11, while the blocking plate 142 releases the hollow area of ​​the hollow circular plate 141. The exhaust gas mixed by the No. 1 mixer 12 is introduced into the sleeve member 10 and contacts the No. 2 mixer 13. The exhaust gas is subjected to secondary turbulent mixing by the No. 2 mixer 13, thereby completing the double mixing of the exhaust gas, making the mixing of the exhaust gas more uniform. At the same time, the switching member 14 is convenient for the technician to operate, and can actively switch and adjust the primary mixing and the No. 2 mixing of the exhaust gas, which is conducive to the efficient combustion purification work, and can be freely switched according to the actual environment.

[0051] In the embodiment of the present invention, the structure of the No. 1 mixer 12 is consistent with that of the No. 2 mixer 13, and both the No. 1 mixer 12 and the No. 2 mixer 13 include an outer ring 121, a center block 122 and a plurality of spoiler blades 123. The outer rings 121 of the No. 1 mixer 12 and the No. 2 mixer 13 are correspondingly arranged at the bottom of the mixing chamber 8 and the top of the sleeve member 10, the center block 122 is arranged at the center of the outer ring 121, and the plurality of spoiler blades 123 are evenly distributed between the outer ring 121 and the center block 122. At the same time, the spoiler directions of the spoiler blades 123 on the No. 1 mixer 12 and the No. 2 mixer 13 can be set to be opposite, so that the exhaust gas completes two opposite spoiler mixings under the action of the No. 1 mixer 12 and the No. 2 mixer 13, and the active spoiler mixing of the exhaust gas is completed through the plurality of spoiler blades 123;

[0052] In the embodiment of the present invention, the switching member 14 includes a hollow circular plate 141 installed at the bottom of the sleeve member 10, and a blocking plate 142 is installed at the top of the hollow area of ​​the hollow circular plate 141 in a sliding and sealing manner. The blocking plate 142 is used to complete the blocking of the hollow area of ​​the hollow circular plate 141, and a retaining frame 143 is installed at the bottom of the hollow area of ​​the hollow circular plate 141. The retaining frame 143 is used to support the blocking plate 142. Two trigger rods 144 are symmetrically installed on the lower surface of the blocking plate 142. The bottoms of the two trigger rods 144 slide correspondingly through the bottom of the mixing chamber 8. An electric cylinder 145 is installed on the base 1 at one side of the bottom of the mixing chamber 8. The output end of the electric cylinder 145 is connected to the two trigger rods 144 through a bracket. A sealing ring 146 is installed in the mixing chamber 8 for sliding engagement. A slideway that cooperates with the sealing ring 146 is provided in the mixing chamber 8. The sealing ring 146 is detachably fixedly connected to the two trigger rods 144 through a bracket. The sealing ring 146 can slide to the air supply channel 11 for blocking. When the sealing ring 146 moves out of the air supply channel 11, the blocking plate 142 completes the blocking of the hollow circular plate 141.

[0053] Among them, a conveying orifice plate 15 is detachably installed on one side of the conveying pipe 7 near the porous medium burner 5, and a plurality of guide holes are evenly opened on the conveying orifice plate 15. The exhaust gas is evenly guided to the porous medium burner 5 through the conveying orifice plate 15, and a driving shaft 16 is rotatably installed at the bottom center of the conveying orifice plate 15. The driving shaft 16 slides through the No. 1 mixer 12 and the No. 2 mixer 13 accordingly, and a support frame 2 for limiting the driving shaft 16 is arranged in the conveying pipe 7. The bottom of the driving shaft 16 slides out of the bottom of the mixing chamber 8, and a reduction motor 17 is installed on the base 1. The reduction motor 17 is transmission-connected to the driving shaft 16, and a scraper 18 is detachably installed on the top of the driving shaft 16, and the scraper 18 is in contact with the lower surface of the conveying orifice plate 15 for scraping and cleaning.

[0054] Embodiment 3: Based on the sensing mechanism provided in Embodiment 1, this embodiment provides a further technical solution of the sensing mechanism.

[0055] like Figure 8 and Figures 11 to 14As shown, the introduction mechanism includes an exhaust gas tank 19, a combustion air tank 20 and a fuel gas tank 21 installed side by side on the upper surface of the base 1, and a distributor 22 is installed at the tail end of the main pipeline 9. The distributor 22 is connected to the exhaust gas tank 19, the combustion air tank 20 and the fuel gas tank 21 through pipelines, and an electric control valve is installed on the connecting pipelines of the exhaust gas tank 19, the combustion air tank 20 and the fuel gas tank 21 and the distributor 22, and a flame arrester is installed on the side of the main pipeline 9 close to the mixing chamber 8, and a partition 23 is installed on the main pipeline 9, and the partition 23 is connected to the main pipeline 9. A sliding area 24 is provided at the top of the partition 23, a blocking piece 25 is installed in the sliding area 24 in a sliding and sealing manner, and a ventilation area 26 that cooperates with the main pipeline 9 is provided through the blocking piece 25, and two return springs 27 are symmetrically installed between the bottom of the blocking piece 25 and the sliding area 24, and a block that limits the initial position of the blocking piece 25 is installed at the bottom of the sliding area 24, so that the blocking piece 25 is stable under normal conditions, and the blocking piece 25 is pulled back to the sliding area 24 by the return spring 27, and a through hole communicating with the sliding area 24 is provided at the bottom of the partition 23;

[0056] It is worth noting that when the exhaust gas is introduced into the combustion chamber 3, the exhaust gas, combustion-supporting air and fuel gas are connected to the exhaust gas tank 19, the combustion-supporting air tank 20 and the fuel gas tank 21 respectively through the introduction mechanism, and then the exhaust gas, combustion-supporting air and fuel gas are continuously sent into the main pipeline 9 according to the predetermined amount, and then the mixed gas is transferred to the mixing chamber 8 through the main pipeline 9, and the subsequent exhaust gas is sent into the delivery pipeline 7, and the exhaust gas is evenly distributed through the delivery orifice plate 15, and then sent to the porous medium burner 5 to complete the combustion, thereby ensuring the uniform distribution of the exhaust gas and facilitating the stable progress of the combustion purification work. In order to ensure the cleanliness of the delivery orifice plate 15, the reduction motor 17 is started to drive the drive shaft 16 and the scraper 18 to rotate, and the delivery orifice plate 15 is scraped and cleaned by the rotation of the scraper 18, thereby reducing the difficulty of manual cleaning;

[0057] In the embodiment of the present invention, the sensing mechanism includes a sensing plate 28 that is slidably engaged in the conveying pipe 7, a flow area 29 is opened through the middle position of the sensing plate 28, and a lifting area that cooperates with the sensing plate 28 is opened on the inner wall of the conveying pipe 7, a pull rope 30 is installed at the bottom of the sensing plate 28, the bottom of the pull rope 30 slides through one side of the conveying pipe 7 and is detachably fixedly connected to the top of the blocking member 25, a hole that cooperates with the pull rope 30 is opened through the conveying pipe 7, and pulleys are correspondingly installed on the side walls of the conveying pipe 7 and the mixing chamber 8, and the pull rope 30 is guided by the pulley, an annular member 31 is rotatably installed above the sensing plate 28 in the conveying pipe 7, an annular track that cooperates with the annular member 31 is opened on the inner wall of the conveying pipe 7, and an annular area 32 is recessed inwardly at the top of the annular member 31, a gear ring 33 is concentrically installed in the annular area 32, and A worm 34 is rotatably provided on the conveying pipe 7, and the worm 34 is engaged with the gear ring 33, and the worm 34 is correspondingly hidden in the annular area 32, and the rotation of the worm 34 is avoided by the annular area 32, and a hand wheel is installed at the tail of the worm 34, and a brake mechanism can be installed between the worm 34 and the conveying pipe 7, and the positioning of the worm 34 is completed by the brake mechanism. A plurality of triggering areas 35 are provided in a circular array at the bottom of the annular member 31, and inclined guide surfaces 36 are provided on both sides of the inner wall of each triggering area 35, and a horizontal platform 361 is cut off at the middle position of each inclined guide surface 36, and the inclined guide surface 36 is divided into a first inclined surface 362 and a second inclined surface 363 by the horizontal platform 361, and a plurality of flexible members 37 are provided in a circular array on the top of the sensing plate 28, and the tops of the plurality of flexible members 37 are in contact with the bottom of the triggering area 35;

[0058] It is worth noting that: when the exhaust gas volume is actively sensed, a sensing mechanism is provided, and the exhaust gas mixed through the mixing chamber 8 enters the conveying pipe 7, and then the exhaust gas is circulated through the circulation area 29. At the same time, the exhaust gas will provide an upward thrust after contacting the sensing plate 28, and the counter-balancing of the upward thrust of the sensing plate 28 is completed through multiple flexible parts 37. When the exhaust gas volume in the conveying pipe 7 is too large, the sensing plate 28 is pushed upward and the multiple flexible parts 37 are compressed. When the sensing plate 28 moves upward, the blocking member 25 is pulled through the pull rope 30, so that the ventilation area 26 on the blocking member 25 is aligned with the total The pipe 9 is misaligned, so that the air intake of the main pipe 9 changes, thereby completing the flexible adjustment of the exhaust gas volume in the conveying pipe 7. The air intake can be flexibly changed according to the size of the exhaust gas volume, so that the exhaust gas in the conveying pipe 7 reaches a balance. Subsequently, the sensing plate 28 is driven to reset by the flexible member 37, and the blocking member 25 is subsequently pulled to reset by the reset spring 27, so that the ventilation area 26 is always aligned with the main pipe 9, ensuring the transportation of the exhaust gas. At the same time, the ventilation area 26 can release the pressure of the movement of the blocking member 25 in the sliding area 24, ensuring the stability of the air pressure in the sliding area 24;

[0059] Specifically, when the sensing plate 28 moves upward, the sensing rod 371 is pushed upward. Since the top of the roller 375 contacts the trigger area 35, the distance between the sensing plate 28 and the second plate 373 changes, and the flexible spring 376 is compressed, thereby completing the flexible control of the displacement of the sensing plate 28. After the subsequent exhaust gas volume changes, the sensing plate 28 is pushed to reset by the flexible spring 376.

[0060] Each flexible member 37 includes a sensing rod 371 mounted on the top of the sensing plate 28, a No. 1 plate 372 is fixedly mounted on the top of the sensing rod 371, a No. 2 plate 373 is slidably sleeved on the outside of the sensing rod 371, a plurality of pressure rods 374 are mounted on the top of the No. 2 plate 373, a roller 375 is rotatably mounted on the top of the plurality of pressure rods 374 through a bracket, the roller 375 is in contact with the No. 1 inclined surface 362, the horizontal platform 361 and the No. 2 inclined surface 363, and the plurality of pressure rods 374 are correspondingly slidably passed through the No. 1 plate 372, a flexible spring 376 is sleeved on the outside of the sensing rod 371, and the flexible spring 376 is located between the No. 2 plate 373 and the sensing plate 28;

[0061] It is worth noting that when adjusting the strength of the flexible member 37, it is only necessary to turn the hand wheel to drive the worm 34 to rotate, and the power transmission between the worm 34 and the ring gear 33 allows the ring gear 33 and the ring member 31 to rotate in the conveying pipe 7. When the ring member 31 rotates, the relative position of the trigger area 35 and the roller 375 changes, driving the roller 375 to contact the inclined guide surface 36, and under the guidance of the inclined guide surface 36, the position of the roller 375 is fine-tuned, so that the initial distance between the roller 375 and the sensing plate 28 becomes closer, and at the same time, the flexible spring 376 is compressed, thereby completing the synchronous adjustment of the flexible strength of multiple flexible members 37, and at the same time, the flexible strength of the flexible member 37 can be freely adjusted under the guidance of the trajectory formed by the inclined guide surface 36 The adjustment is beneficial for the technical personnel to accurately control the exhaust gas volume, and can actively control the sensing strength of the sensing plate 28, ensuring the accuracy of the introduced exhaust gas volume, and is convenient for the technical personnel to adjust. At the same time, the inclined guide surface 36 is set to the first inclined surface 362, the horizontal platform 361 and the second inclined surface 363, so that the roller 375 can be adjusted under the guidance of the first inclined surface 362, the horizontal platform 361 and the second inclined surface 363. At the same time, when the horizontal platform 361 contacts the roller 375, the contact between the roller 375 and the annular member 31 is more stable, which reduces the self-locking load of the worm 34 and the ring gear 33. At the same time, it can ensure that the flexible member 37 is relatively stable, which is beneficial to control the state of the sensing plate 28 and provides operating space for the technical personnel to adjust.

[0062] Embodiment 4: A waste gas treatment process using a porous medium burner, the treatment process specifically comprises the following steps:

[0063] Step 1: First, the exhaust gas, combustion air and fuel gas are connected to the introduction mechanism respectively, and then the mixed gas of the exhaust gas, combustion air and fuel gas is sent into the mixing mechanism through the main pipeline 9;

[0064] Step 2: Actively mix and turbulently mix the mixed gas through the mixing mechanism, so that the exhaust gas, combustion air and fuel gas are fully mixed;

[0065] Step 3: The mixed gas is introduced into the combustion mechanism for purification;

[0066] Step 4: Actively sense the exhaust gas pressure in the delivery pipe 7 through the sensing mechanism, and synchronously transmit the sensed movement amount to the introduction mechanism to complete active control of the delivery amount of the introduction mechanism.

[0067] The present invention provides an exhaust gas treatment system and treatment process using a porous medium burner, and the specific working principle is as follows: first, the exhaust gas, combustion-supporting air and fuel gas are connected to the exhaust gas tank 19, the combustion-supporting air tank 20 and the fuel gas tank 21 respectively to ensure the stability of subsequent transportation, and then the mixed gas of the exhaust gas, combustion-supporting air and fuel gas is sent into the mixing mechanism through the main pipeline 9, and the active mixing turbulence of the mixed gas is completed by the mixing mechanism, so that the exhaust gas, combustion-supporting air and fuel gas are fully mixed and processed, and the circulation of the mixed gas is not blocked. At the same time, the mixing mechanism can complete active switching, thereby completing the primary mixing and secondary mixing switching of the mixed gas, and can complete the active control of the mixing accuracy of the mixed gas to avoid interference with subsequent combustion, so that technical personnel can switch freely according to work needs;

[0068] The subsequently mixed gas is introduced into the combustion mechanism through the conveying pipe 7 for purification, and the exhaust gas after combustion and purification is discharged through the chimney 4 to complete the cycle. At the same time, a sensing mechanism is installed in the conveying pipe 7. The sensing mechanism can actively sense the exhaust gas pressure in the conveying pipe 7, and synchronously transmit the sensed movement amount to the introduction mechanism to complete the active control of the feeding amount of the introduction mechanism, so as to achieve a stable state and avoid the problem of incomplete combustion caused by excessive exhaust gas volume in the conveying pipe 7, so that the purification accuracy of the exhaust gas is guaranteed to be stable, and the overall processing efficiency and processing accuracy are improved.

[0069] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0070] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An exhaust gas treatment system using a porous medium burner, comprising a base (1), a support frame (2) mounted on one side of the upper surface of the base (1), a combustion chamber (3) mounted on the support frame (2), characterized in that: A combustion mechanism for providing combustion is installed in the combustion chamber (3), and the combustion mechanism is used to complete combustion purification of the exhaust gas. A mixing mechanism is connected to the bottom of the combustion chamber (3), and the mixing mechanism is arranged in coordination with the combustion mechanism. The mixing mechanism is used to switch and mix the exhaust gas. An introduction mechanism is connected to one side of the bottom of the mixing mechanism. The introduction mechanism is used to introduce different types of gases into the mixing mechanism, and the exhaust gas is evenly guided to the combustion mechanism through the mixing mechanism for combustion and purification. At the same time, a sensing mechanism is added to the mixing mechanism. At the same time, the sensing mechanism can actively fine-tune the sensing intensity. The sensing mechanism and the introduction mechanism are linked to complete active control of the gas. The mixing mechanism comprises a delivery pipe (7) installed in communication with the bottom of the combustion chamber (3), a mixing chamber (8) installed detachably at the bottom of the delivery pipe (7), and a main pipe (9) installed in communication with one side of the bottom of the mixing chamber (8); The introduction mechanism comprises an exhaust gas tank (19), a combustion air tank (20) and a fuel gas tank (21) which are installed side by side on the upper surface of a base (1); a distributor (22) is installed at the tail end of a main pipeline (9) in communication; a partition (23) is installed on the main pipeline (9) in a cut-off manner; the partition (23) is connected to the main pipeline (9); a sliding area (24) is provided on the top of the partition (23); a blocking member (25) is slidably installed in the sliding area (24); a ventilation area (26) which cooperates with the main pipeline (9) is provided through the blocking member (25); and two return springs (27) are symmetrically installed between the bottom of the blocking member (25) and the sliding area (24); The sensing mechanism comprises a sensing plate (28) which is slidably engaged in the conveying pipe (7), a flow area (29) is provided through the middle of the sensing plate (28), a pull rope (30) is installed at the bottom of the sensing plate (28), the bottom of the pull rope (30) slides through one side of the conveying pipe (7) and is detachably fixedly connected to the top of the blocking member (25), an annular member (31) is rotatably installed above the sensing plate (28) in the conveying pipe (7), an annular area (32) is provided inwardly concavely at the top of the annular member (31), a gear ring (33) is concentrically installed in the annular area (32), and a worm (34) is rotatably penetrated on the conveying pipe (7), the worm (34) is engaged with the gear ring (33); A plurality of triggering areas (35) are provided in a circular array at the bottom of the annular member (31), and inclined guide surfaces (36) are provided on both sides of the inner wall of each triggering area (35). A horizontal platform (361) is provided in the middle of each inclined guide surface (36), and the inclined guide surface (36) is divided into a first inclined surface (362) and a second inclined surface (363) by the horizontal platform (361). A plurality of flexible members (37) are provided in a circular array at the top of the sensing plate (28), and the tops of the plurality of flexible members (37) are in contact with the bottom of the triggering area (35); Each flexible member (37) comprises a sensing rod (371) mounted on the top of the sensing plate (28); a first plate (372) is fixedly mounted on the top of the sensing rod (371); a second plate (373) is slidably sleeved on the outside of the sensing rod (371); a plurality of pressure rods (374) are mounted on the top of the second plate (373); a roller (375) is rotatably mounted on the top of the plurality of pressure rods (374) through a bracket; the roller (375) is in contact with the first inclined surface (362), the horizontal platform (361) and the second inclined surface (363); and a plurality of pressure rods (374) are correspondingly slidably arranged through the first plate (372); and a flexible spring (376) is sleeved on the outside of the sensing rod (371).

2. The exhaust gas treatment system using a porous medium burner according to claim 1, characterized in that: The combustion mechanism comprises a porous medium burner (5) arranged at the bottom of a combustion chamber (3), and an igniter (6) is installed above the porous medium burner (5) on one side of the combustion chamber (3).

3. The exhaust gas treatment system using a porous media burner according to claim 2, characterized in that: A sleeve member (10) is arranged concentrically and spaced apart in the mixing chamber (8) near the conveying pipe (7) through a bracket, and an air supply channel (11) is formed between the side wall of the sleeve member (10) and the mixing chamber (8). A first mixer (12) is installed at the bottom of the mixing chamber (8), and a second mixer (13) is installed at the top of the sleeve member (10). A switching member (14) is arranged between the first mixer (12) and the second mixer (13) in the mixing chamber (8), and active switching and drainage of the exhaust gas is completed through the switching member (14).

4. The exhaust gas treatment system using a porous medium burner according to claim 3, characterized in that: The first flow mixer (12) and the second flow mixer (13) have the same structure, and both the first flow mixer (12) and the second flow mixer (13) include an outer ring (121), a center block (122) and a plurality of spoiler blades (123). The outer rings (121) of the first flow mixer (12) and the second flow mixer (13) are correspondingly arranged at the bottom of the mixing chamber (8) and the top of the sleeve member (10), the center block (122) is arranged at the center of the outer ring (121), and the plurality of spoiler blades (123) are evenly distributed between the outer ring (121) and the center block (122).

5. The exhaust gas treatment system using a porous medium burner according to claim 4, characterized in that: The switching member (14) comprises a hollow circular plate (141) mounted on the bottom of the sleeve member (10); a blocking plate (142) is slidably and sealably mounted on the top of the hollow circular plate (141); two trigger rods (144) are symmetrically mounted on the lower surface of the blocking plate (142); an electric cylinder (145) is mounted on one side of the bottom of the mixing chamber (8); an output end of the electric cylinder (145) is connected to the two trigger rods (144) via a bracket; a sealing ring (146) is slidably and sealably mounted in the mixing chamber (8); and the sealing ring (146) is detachably and fixedly connected to the two trigger rods (144) via a bracket.

6. The exhaust gas treatment system using a porous medium burner according to claim 5, characterized in that: A conveying orifice plate (15) is detachably mounted on one side of the conveying pipe (7) near the porous medium burner (5), and a driving shaft (16) is rotatably mounted at the bottom center of the conveying orifice plate (15). A reduction motor (17) is mounted on the base (1), the reduction motor (17) is transmission-connected to the driving shaft (16), and a scraper (18) is detachably mounted on the top of the driving shaft (16).

7. A waste gas treatment process using a porous medium burner, using a waste gas treatment system using a porous medium burner according to any one of claims 1 to 6, characterized in that: The processing technology specifically includes the following steps: Step 1: First, the exhaust gas, combustion-supporting air and fuel gas are connected to the introduction mechanism respectively, and then the mixed gas of the exhaust gas, combustion-supporting air and fuel gas is sent into the mixing mechanism through the main pipeline (9); Step 2: Actively mix and turbulently mix the mixed gas through the mixing mechanism, so that the exhaust gas, combustion air and fuel gas are fully mixed; Step 3: The mixed gas is introduced into the combustion mechanism for purification; Step 4: Actively sense the exhaust gas pressure in the delivery pipe (7) through the sensing mechanism, and synchronously transmit the sensed movement amount to the introduction mechanism to complete active control of the delivery amount of the introduction mechanism.

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