A flameless oxidation furnace regenerator chamber module for low concentration gas treatment in coal mines

Abstract

The application discloses a flameless oxidation furnace regenerator module for treating low-concentration gas in a coal mine, and relates to the technical field of regenerators.The regenerator module comprises a regenerator for preheating low-concentration gas, and the regenerator comprises a regenerator wall for supporting a plurality of groups of regenerative ceramic preheating layers.The regenerative ceramic layers are composed of a plurality of groups of regenerative ceramic beds arranged in a superposed manner.A shaft temperature mechanism for measuring the temperature distribution of each regenerative ceramic preheating layer is arranged on the regenerative ceramic preheating layer.The shaft temperature mechanism comprises a hollow radial frame body embedded and fixed on the regenerative ceramic bed.A displacement assembly for adjusting the relative position between a surface-mounted temperature sensor probe and the regenerative ceramic bed is arranged on the hollow radial frame body.The shaft temperature mechanism is arranged to gradually measure the temperature values of the regenerative ceramic bed from the center to the edge, thereby effectively monitoring the temperature difference of the regenerative ceramic bed, and optimizing the temperature distribution of the regenerative ceramic bed to ensure that the gas is uniformly preheated when passing through the regenerative ceramic bed, thereby improving the combustion efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of regenerative chamber, in particular to a flameless oxidation furnace regenerative chamber module for low-concentration gas treatment in coal mines. BACKGROUND

[0002] In the process of low-concentration gas treatment, the oxidation furnace is a commonly used device. The oxidation furnace mixes low-concentration gas with air and then burns to make the methane in the gas fully oxidize at high temperature, converting into carbon dioxide and water, thereby realizing the harmless treatment of the gas.

[0003] Chinese patent (announcement number: CN118442844A), the scheme specifically includes a furnace body, a filter screen assembly, and a cleaning device. The filter screen assembly includes a filter screen and a driving device. The filter screen includes an in-furnace filter screen and an out-furnace filter screen. The driving device is used to drive the filter screen to move. The in-furnace filter screen divides the inner cavity of the furnace body into a pre-filtering area and a post-filtering area. The cleaning device includes a first pressure measuring device, a second pressure measuring device, a cleaning mechanism, and a controller. The first pressure measuring device is used to measure the gas pressure value of the pre-filtering area. The second pressure measuring device is used to measure the gas pressure value of the post-filtering area. The controller is electrically connected with the first pressure measuring device, the second pressure measuring device, the driving device, and the cleaning mechanism. When the difference between the gas pressure value of the pre-filtering area and the gas pressure value of the post-filtering area is greater than a preset threshold value, the controller controls the driving device and the cleaning mechanism to start. The in-furnace filter screen is driven by the driving device to move out of the furnace body to become the out-furnace filter screen. The surface of the out-furnace filter screen is cleaned by the cleaning mechanism, which can reduce the labor intensity.

[0004] The existing oxidation furnace usually recycles the temperature after the low-concentration gas oxidation reaction by using a regenerative chamber to achieve the purpose of preheating the subsequent gas. When the heat is stored by using regenerative ceramics, the accumulation of excessively high temperature may cause the performance of the regenerative ceramics to decrease, thereby affecting the service life. At the same time, the difference in the heat accumulation of the regenerative ceramics at the same height may cause the preheating effect of the subsequent gas to be different, thereby possibly causing problems such as a decrease in combustion efficiency and a decrease in combustion stability. Therefore, the flameless oxidation furnace regenerative chamber module for low-concentration gas treatment in coal mines is proposed. SUMMARY

[0005] The present application aims to provide a flameless oxidation furnace regenerative chamber module for low-concentration gas treatment in coal mines, which has the advantages of effectively monitoring the temperature difference of the regenerative ceramic bed and optimizing the temperature distribution of the regenerative ceramic bed, thereby solving the problems of the excessively high temperature of the regenerative ceramics affecting the service life and the temperature difference affecting the uniformity of the subsequent preheating.

[0006] In order to achieve the above object, the present application provides the following technical scheme: A flameless oxidation furnace regenerator module for coal mine low-concentration gas treatment, comprising a regenerator for preheating low-concentration gas, the regenerator comprises a regenerator wall for supporting a plurality of groups of regenerative ceramic preheating layers, the regenerative ceramic layers are composed of a plurality of groups of regenerative ceramic beds arranged in overlapping manner, a surface-mounted temperature sensor probe for measuring the temperature of each of the plurality of groups of regenerative ceramic preheating layers is arranged, each of the plurality of groups of surface-mounted temperature sensor probes is electrically connected with a control system, and an axial temperature mechanism for measuring the self-regenerative temperature distribution of each of the plurality of groups of regenerative ceramic preheating layers is arranged.

[0007] The axial temperature mechanism comprises a hollow radial frame fixedly embedded on the regenerative ceramic bed, one end of the hollow radial frame is located at the center of the regenerative ceramic bed and arranged horizontally, a horizontal seat for supporting the surface-mounted temperature sensor probe is arranged on the hollow radial frame, and a displacement assembly for adjusting the relative position of the surface-mounted temperature sensor probe and the regenerative ceramic bed is arranged on the hollow radial frame.

[0008] The hollow radial frame is further provided with an inner attachment assembly for intermittently attaching the surface-mounted temperature sensor probe to the regenerative ceramic bed, and a flow resistance assembly for changing the flow distribution of high-temperature gas is arranged above each of the plurality of groups of regenerative ceramic preheating layers.

[0009] Preferably, the displacement assembly comprises a directional screw arranged inside the hollow radial frame, both ends of the directional screw are fixedly connected to the inner wall of the hollow radial frame, the directional screw is meshingly connected with a helical gear, the helical gear is pivotally rotated on the horizontal seat, and a motor for driving the helical gear to freely rotate in the vertical direction is fixedly connected to the horizontal seat.

[0010] Preferably, two groups of guide columns are arranged below the directional screw, the two groups of guide columns are arranged in parallel between the directional screw, and both ends of the two groups of guide columns are fixedly connected to the inner wall of the hollow radial frame.

[0011] A circular hole is formed in the horizontal seat for the guide columns to slide through.

[0012] Preferably, the inner attachment assembly comprises a horizontal cylinder pivotally rotated on the horizontal seat, a side extension rod is arranged on the horizontal side of the horizontal cylinder, a groove one for the side extension rod to slide horizontally is formed in the horizontal seat, and the surface-mounted temperature sensor probe is fixedly connected to the side of the side extension rod away from the horizontal seat.

[0013] A blocking pin is fixedly connected to the side of the side extension rod facing the horizontal cylinder, a ring spiral groove is formed in the horizontal cylinder for the blocking pin to slide and connect, and the ring spiral groove comprises an arc groove part and a V-shaped spiral groove part which are integrally formed and connected to each other.

[0014] Preferably, a rectangular accommodation slot is formed in the hollow radial frame for the side extension rod and the surface-mounted temperature sensor probe to penetrate.

[0015] Preferably, the horizontal seat has a side plate that rotates freely in the vertical direction and is fixed on a fixed axis. The side plate is coaxially fixed with the helical gear. A flower-shaped plate is provided below the side plate. The flower-shaped plate rotates on the horizontal seat and is coaxially fixed with the horizontal cylinder.

[0016] The side of the edge plate facing the flower-shaped plate is fixedly connected with a coordinating pin, and the edge plate has multiple sets of axial coordinating grooves for the coordinating pin to slide and connect.

[0017] The edge plate is also fixedly connected with a notch positioning ring. The flower-shaped plate has multiple sets of edge arc grooves that slide in contact with the notch positioning ring. The multiple sets of edge arc grooves and multiple sets of axial co-position grooves are staggered and arranged in a ring array on the flower-shaped plate.

[0018] Preferably, the flow-blocking component is located on the central column at the center of the thermal storage ceramic bed, and an arc-shaped support is fixedly connected to the bottom of the central column, which is fixedly connected to the hollow radial frame.

[0019] The top of the central column rotates on a fixed axis with multiple sets of frame columns. A set of central support columns is provided between each pair of adjacent sets of frame columns. A set of wind baffles is provided between each pair of adjacent central support columns and frame columns. The two sides of the wind baffles rotate on the central support columns and frame columns respectively.

[0020] Multiple sets of wind deflectors deflect synchronously in the vertical direction, and the deflection directions of adjacent sets of wind deflectors are opposite.

[0021] Preferably, a workstation seat that is freely raised and lowered by an electric actuator is slidably sleeved on the spindle column. The workstation seat is provided with longitudinal connecting rods that correspond one-to-one with multiple sets of intermediate support columns. The two ends of the longitudinal connecting rods are respectively fixed-axis rotatable on the workstation seat and the intermediate support column.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] This invention, by setting up a shaft temperature mechanism, can drive the surface-mounted temperature sensor probe to move horizontally and intermittently come into close contact with the heat storage ceramic bed, gradually measuring the temperature value from the center to the edge, thereby effectively monitoring the temperature difference of the heat storage ceramic bed, and by optimizing the temperature distribution of the heat storage ceramic bed, ensuring that the gas obtains a uniform preheating effect when passing through the heat storage ceramic bed, thereby improving combustion efficiency.

[0024] This invention, by setting up flow-blocking components, can change the flow direction of high-temperature gas, driving more high-temperature gas to the edge position. This design can reduce the temperature difference of the heat storage ceramic bed, ensure the uniformity of subsequent gas preheating, thereby improving combustion efficiency and ensuring combustion stability. Attached Figure Description

[0025] Figure 1This is a schematic diagram showing the positions of the multiple sets of heat storage ceramic preheating layers in this invention;

[0026] Figure 2 This is a schematic diagram of the overall structure of the present invention;

[0027] Figure 3 This is a schematic diagram showing the positional relationship between the thermal storage ceramic bed and the hollow radial frame of the present invention;

[0028] Figure 4 This is a schematic diagram of the component containing the horizontal support of the present invention;

[0029] Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle;

[0030] Figure 6 This is a schematic diagram of the component containing the flower-shaped disc of the present invention;

[0031] Figure 7 This is a schematic diagram of the component containing the windbreak plate of the present invention;

[0032] Figure 8 For the present invention Figure 7 Enlarged view of section B in the middle.

[0033] In the diagram: 1. Heat storage chamber wall; 2. Heat storage ceramic bed; 3. Hollow radial frame; 4. Directional screw; 5. Helical gear; 6. Horizontal seat; 7. Guide column; 8. Side plate; 9. Co-positioning pin; 10. Notched positioning ring; 11. Flower-shaped plate; 12. Axial co-positioning groove; 13. Side arc groove; 14. Horizontal cylinder; 15. Circular spiral groove; 151. Arc groove section; 152. V-shaped spiral groove section; 16. Stop pin; 17. Side extension rod; 18. Surface-mounted temperature sensor probe; 19. Rectangular clearance through groove; 20. Bow-shaped support leg; 21. Shaft column; 22. Workstation seat; 23. Longitudinal connecting rod; 24. Center support column; 25. Air baffle plate; 26. Frame column. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0035] Please see Figures 1 to 8The present invention provides a technical solution: a regenerator module for a flameless oxidizer for treating low-concentration methane in coal mines, comprising a regenerator for preheating low-concentration methane gas, the regenerator comprising a regenerator wall 1 for supporting multiple sets of regenerator ceramic preheating layers, the regenerator ceramic layers being composed of multiple sets of regenerator ceramic beds 2 stacked together, each set of regenerator ceramic preheating layers being provided with a surface-mounted temperature sensor probe 18 for measuring its temperature, each set of surface-mounted temperature sensor probes 18 being electrically connected to a control system, and each set of the regenerator ceramic preheating layers being provided with a shaft temperature mechanism for measuring its own heat storage temperature distribution;

[0036] The shaft temperature mechanism includes a hollow radial frame 3 embedded and fixed on the heat storage ceramic bed 2. One end of the hollow radial frame 3 is located at the center of the heat storage ceramic bed 2 and is set horizontally. The hollow radial frame 3 is provided with a horizontal seat 6 for supporting the surface-mount temperature sensor probe 18. The hollow radial frame 3 is provided with a displacement component for adjusting the relative position of the surface-mount temperature sensor probe 18 and the heat storage ceramic bed 2.

[0037] The hollow radial frame 3 is also provided with an inner bonding component that drives the surface-mount temperature sensor probe 18 to intermittently bond with the heat storage ceramic bed 2. Above the multiple sets of heat storage ceramic preheating layers, there are flow-blocking components for changing the distribution of high-temperature gas flow.

[0038] like Figure 1 - Figure 4 As shown, when the heat released from the oxidation reaction of low-concentration gas is stored through multiple sets of thermal storage ceramic preheating layers, the high-temperature gas after the oxidation reaction passes through these layers. The temperature of the thermal storage ceramic bed 2 is monitored by a surface-mounted temperature sensor probe 18 installed on the thermal storage ceramic preheating layer to determine the heat storage status of the bed 2. Specifically, when the high-temperature gas flows from top to bottom, corresponding temperature parameters are set according to the height differences of the multiple sets of thermal storage ceramic preheating layers. When the temperature measured by the surface-mounted temperature sensor probe 18 exceeds the set temperature threshold, the valve switching time is adjusted to ensure that the temperature of the multiple sets of thermal storage ceramic preheating layers remains within a safe range.

[0039] In actual use, the flow of high-temperature gas within the heat storage chamber wall 1 may not be completely uniform, which may lead to different gas flow rates in different areas of a single heat storage ceramic preheating layer, thus causing temperature differences in the heat storage ceramic preheating layer. Therefore, the surface-mount temperature sensor probe 18 is driven to move horizontally by the shaft temperature component, thereby changing the relative position of the surface-mount temperature sensor probe 18 and the corresponding heat storage ceramic bed 2. In conjunction with the inner attachment component, the surface-mount temperature sensor probe 18 is driven to intermittently adhere to the corresponding heat storage ceramic bed 2 during horizontal movement, thereby gradually measuring the temperature value from the center to the edge of the heat storage ceramic bed 2.

[0040] During the heat absorption process of the heat storage ceramic bed 2, the high-temperature gas usually enters from the top and flows downward. Due to the initial kinetic energy and flow inertia of the gas when it enters the heat storage chamber, the gas tends to concentrate in the central area of ​​the heat storage ceramic bed 2. This concentrated flow will cause the central position of the heat storage ceramic bed 2 to absorb more heat, thereby driving the central temperature of the heat storage ceramic bed 2 to be higher than its own edge temperature.

[0041] Therefore, when the temperature difference between the center and the edge of the thermal storage ceramic bed 2 reaches a set value, the flow direction of the high-temperature gas is changed by the flow-blocking component. When the center temperature of the thermal storage ceramic bed 2 is too high as the edge temperature, more high-temperature gas can be driven to pass through the thermal storage ceramic bed 2 from the edge position. This drives the subsequent heat storage speed of the thermal storage ceramic bed 2 at the edge position to be faster, thereby reducing the temperature difference on a single set of thermal storage ceramic beds 2. This ensures the uniformity of subsequent preheating of low-concentration gas, so that the uniformly preheated gas can be more effectively mixed with oxygen and fully combusted after entering the combustion chamber, thereby improving combustion efficiency, reducing fuel consumption, and lowering operating costs.

[0042] In one preferred embodiment, the displacement assembly includes a directional screw 4 disposed inside the hollow radial frame 3. Both ends of the directional screw 4 are fixedly connected to the inner wall of the hollow radial frame 3. The directional screw 4 is meshed with a helical gear 5. The helical gear 5 rotates on a horizontal seat 6 with its axis fixed. A motor for driving the helical gear 5 to rotate freely in the vertical direction is fixedly connected to the horizontal seat 6.

[0043] Two sets of guide posts 7 are provided below the directional screw 4. Both sets of guide posts 7 are arranged parallel to the directional screw 4. Both ends of the two sets of guide posts 7 are fixedly connected to the inner wall of the hollow radial frame 3. The horizontal seat 6 is provided with a circular hole for the guide posts 7 to slide through.

[0044] like Figure 4 and Figure 6 As shown, the directional screw 4 is fixedly installed inside the hollow radial frame 3. When the helical gear 5 is driven by the motor to rotate vertically on the horizontal seat 6, the helical gear 5 and the directional screw 4 are meshed together. The rotation of the helical gear 5 drives itself and the horizontal seat 6 to move along the laying direction of the directional screw 4, thereby changing the relative position of the surface-mounted temperature sensor probe 18 and the heat storage ceramic bed 2. This allows for temperature detection of the corresponding ceramic body positions at different distances from the center of the heat storage ceramic bed 2. The direction of rotation of the helical gear 5 can be changed by the motor, thereby changing the movement direction of the horizontal seat 6 on the directional screw 4.

[0045] Meanwhile, the horizontal seat 6 is slidably sleeved on two sets of guide posts 7. Both sets of guide posts 7 are arranged parallel to the directional screw 4 and fixedly connected to the hollow radial frame 3. Therefore, the horizontal seat 6 can be limited by the two sets of guide posts 7 to ensure the stability of the horizontal seat 6 during horizontal movement.

[0046] Based on the displacement assembly embodiment, the inner attachment assembly includes a horizontal cylinder 14 that rotates on a horizontal seat 6 with a fixed axis. A side extension rod 17 is provided on the horizontal side of the horizontal cylinder 14. A groove is provided on the horizontal seat 6 for the side extension rod 17 to slide horizontally. A surface-mount temperature sensor probe 18 is fixedly connected to the side surface of the side extension rod 17 away from the horizontal seat 6.

[0047] The side extension rod 17 is fixedly connected to the side facing the horizontal cylinder 14 with a stop pin 16. The horizontal cylinder 14 is provided with an annular groove 15 for the stop pin 16 to slide. The annular groove 15 includes an arc groove 151 and a V-shaped spiral groove 152 that are integrally formed and connected to each other. The hollow radial frame 3 is provided with a rectangular clearance groove 19 for the side extension rod 17 and the surface-mount temperature sensor probe 18 to pass through.

[0048] The horizontal seat 6 has a fixed axis rotating side plate 8 that can rotate freely in the vertical direction. The side plate 8 is coaxially fixed with the helical gear 5. Below the side plate 8 is a flower-shaped plate 11, which rotates on the horizontal seat 6 and is coaxially fixed with the horizontal cylinder 14.

[0049] The side plate 8 facing the flower-shaped plate 11 is fixedly connected to a corresponding pin 9. The side plate 8 has multiple sets of axial corresponding grooves 12 for sliding connection of the corresponding pin 9. The side plate 8 is also fixedly connected to a notched positioning ring 10. The flower-shaped plate 11 has multiple sets of side arc grooves 13 that slide in contact with the notched positioning ring 10. The multiple sets of side arc grooves 13 and the multiple sets of axial corresponding grooves 12 are staggered and arranged in a ring array on the flower-shaped plate 11.

[0050] like Figure 4 - Figure 6 As shown, when the helical gear 5 rotates vertically under the drive of the motor to change the horizontal position of the horizontal seat 6 and the surface-mounted temperature sensor probe 18, it can synchronously drive the side plate 8, which is coaxially fixed on it, to rotate synchronously. The side plate 8 is provided with a positioning pin 9, which in turn drives the positioning pin 9 to rotate synchronously with the side plate 8.

[0051] Meanwhile, the flower-shaped disk 11 has multiple sets of axially aligned grooves 12 for sliding connection of the aligning pins 9. When the aligning pin 9 corresponds to one of the axially aligned grooves 12, the flower-shaped disk 11 can be driven to rotate a certain angle in the vertical direction through the sliding process of the aligning pin 9 in the axially aligned groove 12. Then, through the continuous rotation of the side plate 8, the flower-shaped disk 11 and the horizontal cylinder 14 fixed coaxially with the flower-shaped disk 11 are driven to rotate intermittently in the vertical direction.

[0052] When the locating pin 9 disengages from the axial locating groove 12, a notched positioning ring 10 is fixedly provided on the side plate 8, corresponding to a set of side arc grooves 13 opened on the flower-shaped plate 11. The notched positioning ring 10 restricts the position of the flower-shaped plate 11, thereby preventing the flower-shaped plate 11 from rotating arbitrarily under inertia. At the same time, when the flower-shaped plate 11 rotates, it can drive the horizontal position cylinder 14, which is coaxially fixed with it, to rotate synchronously. A blocking pin 16 is fixedly connected to the side extension rod 17. The blocking pin 16 is slidably connected to the horizontal position cylinder 14 through the annular groove 15. The annular groove 15 includes an integrally formed arc groove part 151 and a V-shaped spiral groove part 152. When the blocking pin 16 corresponds to the arc groove part 151, the horizontal position cylinder 14 will not drive the side extension rod 17 to slide on the horizontal position seat 6 when it rotates.

[0053] Meanwhile, as the horizontal cylinder 14 continues to rotate, the stop pin 16 corresponds to the V-shaped spiral groove 152. When the stop pin 16 slides on the V-shaped spiral groove 152, it can drive the side extension rod 17 to move the surface-mounted temperature sensor probe 18 toward the heat storage ceramic bed 2. Then, the temperature value at the corresponding position of the heat storage ceramic bed 2 is measured by the contact between the surface-mounted temperature sensor probe 18 and the workstation 22.

[0054] Based on the embodiment of the inner-attached component, the flow-blocking component is set in the central column 21 at the center of the heat storage ceramic bed 2. The bottom of the central column 21 is fixedly connected to the bow-shaped support leg 20, which is fixedly connected to the hollow radial frame 3.

[0055] The top of the central column 21 is fixedly rotated by multiple sets of skeleton columns 26. A set of central support column 24 is provided between each two adjacent sets of skeleton columns 26. A set of wind baffles 25 is provided between each of the multiple sets of adjacent central support columns 24 and skeleton columns 26. The two sides of the wind baffles 25 are fixedly rotated on the central support column 24 and the skeleton column 26 respectively.

[0056] Multiple sets of wind deflectors 25 deflect synchronously in the vertical direction, and the deflection directions of adjacent sets of wind deflectors 25 are opposite.

[0057] The workstation seat 22, which is driven by an electric actuator and can be freely raised and lowered, is slidably sleeved on the spindle 21. The workstation seat 22 is provided with longitudinal connecting rods 23 that correspond one-to-one with multiple sets of intermediate support columns 24. The two ends of the longitudinal connecting rods 23 are respectively fixed and rotated on the workstation seat 22 and the intermediate support column 24.

[0058] like Figure 1 , Figure 3 , Figure 7 and Figure 8 As shown, when the temperature difference between the center and the edge of the thermal storage ceramic bed 2 exceeds the set value, when the station seat 22 is driven by the electric actuator to move vertically along the laying direction of the axis column 21, multiple sets of longitudinal connecting rods 23 installed on it can be raised and lowered synchronously. One end of the longitudinal connecting rod 23 is fixedly rotated on the middle support column 24, and the middle support column 24 is located between two adjacent sets of wind baffles 25. Thus, when the height of the station seat 22 changes, the deflection process of the longitudinal connecting rod 23 can drive multiple sets of wind baffles 25 to swing synchronously in the vertical direction.

[0059] At the same time, the two adjacent sets of wind baffles 25 are arranged opposite each other, and the wind baffles 25 are all fixedly rotated on the frame column 26. The end of the frame column 26 is fixedly rotated on the central column 21. Thus, when the workstation seat 22 is raised and lowered to drive the longitudinal connecting rod 23 to deflect, it can push multiple sets of middle support columns 24 to retract or unfold towards the side where the central column 21 is located, so as to achieve the purpose of causing the two sets of wind baffles 25 located between the two sets of frame columns 26 to fold or extend.

[0060] When multiple sets of central support columns 24 extend synchronously, their vertical cross-sections present an umbrella-like structural shape, which in turn causes the high-temperature air above the center of the heat storage ceramic bed 2 to flow along the slope of multiple sets of wind baffles 25 to the edge of the heat storage ceramic bed 2, thereby increasing the flow rate of high-temperature air at the edge of the heat storage ceramic bed 2.

[0061] It should be noted that in actual use, there is still a certain gap between adjacent baffles 25 due to the presence of the central support column 24 and the frame column 26. High-temperature air can flow through this gap to the center of the heat storage ceramic bed 2. At the same time, air holes can be opened on multiple sets of baffles 25 to allow high-temperature gas to circulate, so as to ensure that the high-temperature gas does not concentrate at the edge of the heat storage ceramic bed 2. Instead, when multiple sets of central support columns 24 are deployed, the flow rate of high-temperature gas at the edge of the heat storage ceramic bed 2 can be increased, thereby reducing the excessive temperature difference on the same hollow radial frame 3. This allows the low-concentration gas to be preheated evenly when passing through the hollow radial frame 3, thus ensuring its combustion stability.

[0062] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A regenerator module for a flameless oxidizer used for treating low-concentration methane gas in coal mines, comprising a regenerator chamber for preheating low-concentration methane gas, the regenerator chamber comprising a regenerator wall (1) for supporting multiple sets of regenerator ceramic preheating layers, the regenerator ceramic layers being composed of multiple sets of regenerator ceramic beds (2) stacked together, each set of regenerator ceramic preheating layers being provided with a surface-mounted temperature sensor probe (18) for measuring its temperature, and each set of surface-mounted temperature sensor probes (18) being electrically connected to a control system, characterized in that: Each of the aforementioned heat storage ceramic preheating layers is equipped with a shaft temperature mechanism for measuring its own heat storage temperature distribution; The shaft temperature mechanism includes a hollow radial frame (3) embedded and fixed on the heat storage ceramic bed (2). One end of the hollow radial frame (3) is located at the center of the heat storage ceramic bed (2) and is set horizontally. The hollow radial frame (3) is provided with a horizontal seat (6) for supporting the surface-mount temperature sensor probe (18). The hollow radial frame (3) is provided with a displacement component for adjusting the relative position of the surface-mount temperature sensor probe (18) and the heat storage ceramic bed (2). The hollow radial frame (3) is also provided with an inner bonding component that drives the surface-mount temperature sensor probe (18) to intermittently bond with the heat storage ceramic bed (2). Multiple heat storage ceramic preheating layers are provided with flow-blocking components to change the distribution of high-temperature gas flow direction. When the high-temperature gas flows from top to bottom, the corresponding temperature parameters are set according to the height difference of multiple sets of heat storage ceramic preheating layers. When the temperature measured by the surface-mount temperature sensor probe (18) exceeds the set temperature threshold, the valve switching time is adjusted to ensure that the temperature of multiple sets of heat storage ceramic preheating layers is within a safe range.

2. The regenerator module for a flameless oxidizer for treating low-concentration methane in coal mines according to claim 1, characterized in that: The displacement assembly includes an directional screw (4) disposed inside the hollow radial frame (3). Both ends of the directional screw (4) are fixedly connected to the inner wall of the hollow radial frame (3). The directional screw (4) is meshed with a helical gear (5). The helical gear (5) rotates on a horizontal seat (6) with its axis fixed. A motor for driving the helical gear (5) to rotate freely in the vertical direction is fixedly connected to the horizontal seat (6).

3. The regenerator module for a flameless oxidizer for treating low-concentration methane in coal mines according to claim 2, characterized in that: Two sets of guide posts (7) are provided below the directional screw (4). Both sets of guide posts (7) are arranged parallel to the directional screw (4). Both ends of the two sets of guide posts (7) are fixedly connected to the inner wall of the hollow radial frame (3). The horizontal seat (6) has a circular hole through which the guide post (7) slides.

4. The regenerator module for a flameless oxidizer for treating low-concentration methane in coal mines according to claim 2, characterized in that: The inner-mounted assembly includes a horizontal cylinder (14) that rotates on a horizontal seat (6) with a fixed axis. A side extension rod (17) is provided on the horizontal side of the horizontal cylinder (14). A groove is provided on the horizontal seat (6) for the side extension rod (17) to slide horizontally. A surface-mounted temperature sensor probe (18) is fixedly connected to the side surface of the side extension rod (17) away from the horizontal seat (6). The side extension rod (17) is fixedly connected to the side facing the horizontal cylinder (14) with a stop pin (16). The horizontal cylinder (14) is provided with an annular groove (15) for sliding connection of the stop pin (16). The annular groove (15) includes an integrally formed arc groove (151) and a V-shaped spiral groove (152) that are connected end to end.

5. The regenerator module for a flameless oxidizer for treating low-concentration methane in coal mines according to claim 4, characterized in that: The hollow radial frame (3) has a rectangular clearance slot (19) through which the side extension rod (17) and the surface-mount temperature sensor probe (18) pass.

6. The regenerator module for a flameless oxidizer for treating low-concentration methane in coal mines according to claim 4, characterized in that: The horizontal seat (6) has a fixed axis rotating side plate (8) that can rotate freely in the vertical direction. The side plate (8) is coaxially fixed with the helical gear (5). Below the side plate (8) is a flower-shaped plate (11). The flower-shaped plate (11) rotates on the horizontal seat (6) and is coaxially fixed with the horizontal cylinder (14). The side plate (8) facing the flower-shaped plate (11) is fixedly connected with a co-position pin (9), and the flower-shaped plate (11) has multiple sets of axial co-position grooves (12) for the co-position pin (9) to slide and connect. The edge plate (8) is also fixedly connected with a notch positioning ring (10), and the flower-shaped plate (11) has multiple sets of edge arc grooves (13) that slide in contact with the notch positioning ring (10). The multiple sets of edge arc grooves (13) and multiple sets of axial co-position grooves (12) are staggered and arranged in a ring array on the flower-shaped plate (11).

7. The regenerator module for a flameless oxidizer for treating low-concentration methane in coal mines according to claim 1, characterized in that: The flow-blocking component is set at the center of the heat storage ceramic bed (2) on the central column (21), and the bottom of the central column (21) is fixedly connected to the bow-shaped support (20), which is fixedly connected to the hollow radial frame (3). The top of the central column (21) is fixedly rotated by multiple sets of skeleton columns (26), and a set of central support column (24) is provided between each two adjacent sets of skeleton columns (26). A set of wind baffles (25) is provided between each of the multiple sets of adjacent central support column (24) and skeleton column (26). The two sides of the wind baffles (25) are fixedly rotated on the central support column (24) and skeleton column (26) respectively. Multiple sets of the wind deflector plates (25) deflect synchronously in the vertical direction, and the deflection directions of two adjacent sets of wind deflector plates (25) are opposite.

8. The regenerator module for a flameless oxidizer for treating low-concentration methane in coal mines according to claim 7, characterized in that: The spindle (21) is slidably fitted with a workstation seat (22) that is freely raised and lowered by an electric push rod. The workstation seat (22) is provided with longitudinal connecting rods (23) that correspond one-to-one with multiple sets of intermediate support columns (24). The two ends of the longitudinal connecting rods (23) are respectively fixed and rotated on the workstation seat (22) and the intermediate support column (24).

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