A high-temperature exhaust gas treatment assembly for a high-ash rotary kiln

Abstract

The application discloses a high-temperature waste gas treatment assembly for a high-ash rotary kiln, and belongs to the technical field of rotary kiln waste gas pollution treatment. The assembly comprises a feeding pipe installed on the rotary kiln and a treatment assembly matched with the feeding pipe and connected with the tail end of the rotary kiln. The application is a preliminary treatment of the high-temperature waste gas discharged from the rotary kiln, and removes most of the dust particles in the waste gas. The waste gas carrying small particles is introduced into a filtering structure. In the secondary filtering treatment, a rotatable blocking piece is used for selectively opening and closing two groups of filtering cavities. The waste gas is introduced into the filtering cavities in an open state by a gas supply piece, filtered by filtering fillers, and then dispersed to the feeding pipe by the open gas holes to preheat the materials. After the filtering fillers reach the service life, the working state of the filtering fillers in the two groups of filtering cavities can be changed by rotating the blocking piece, and the used filtering fillers can be treated without stopping the machine.

Description

Technical Field

[0001] The present invention relates to the technical field of rotary kiln waste gas pollution treatment, and more particularly to a high-temperature waste gas treatment component for a high-ash rotary kiln. Background Art

[0002] A rotary kiln is a thermal equipment for calcining, roasting or drying granular and powdered materials. The furnace body of the rotary kiln is a steel cylinder with a refractory lining. The furnace body is supported on several pairs of rollers and has an inclination of 3% to 6%. The furnace body is driven by an electric motor through gears to rotate slowly. The material is added from the higher tail end and discharged from the lower head end. During the operation of the roasting rotary kiln, a large amount of high-temperature exhaust gas is generated. If the exhaust gas is discharged without treatment, it is easy to have a negative impact on the environment.

[0003] After searching, the patent number CN113117426B discloses "A Rotary Kiln Waste Gas Treatment Equipment", which is equipped with an air inlet pipe to effectively collect waste gas during use. When the waste gas enters the air inlet pipe, it enters the first air pipe. Through the coordinated use of the air holes, the waste gas is evenly filled in the second air pipe. After the fan is set, the waste gas is filtered through activated carbon and extracted by the fan installed on the top.

[0004] Although this patent can achieve uniform flow of exhaust gas through the activated carbon, the pores for diverting the exhaust gas and the activated carbon for filtering the exhaust gas are fixedly installed in the second air pipe. The exhaust gas is first dispersed through the pores and then filtered by the activated carbon. The pores are prone to adhere to a large amount of solid impurities when used for a long time, resulting in a reduction in the pore diameter. Especially for rotary kilns with high ash content, a large amount of dust particles are more likely to clog the pores and affect the gas circulation effect. When the activated carbon is saturated with adsorption, it needs to be replaced during the interval time of the rotary kiln shutdown or when the rotary kiln is shut down, which is inconvenient for regular cleaning. In addition, the treated gas goes directly to the outside, and the waste heat of the gas is not effectively utilized.

[0005] To this end, we propose a high-temperature exhaust gas treatment component for a high-ash rotary kiln to address the above problems. Summary of the Invention

[0006] The application aims at solving the existing problems, and provides a high-temperature waste gas treatment assembly for a high-ash rotary kiln, which improves the waste gas treatment structure of the rotary kiln in the prior art.

[0007] The application can be realized by the following technical scheme: a high-temperature waste gas treatment assembly for a high-ash rotary kiln, which comprises a feed pipe installed on the rotary kiln and a treatment assembly matched with the feed pipe and connected with the tail end of the rotary kiln, wherein the treatment assembly comprises a cyclone separator connected with the tail end of the rotary kiln and a filter structure sleeved and installed outside the feed pipe and connected with the feed pipe, and the filter structure and the gas outlet of the cyclone separator are connected through a hose;

[0008] The filter structure comprises a fixed frame fixedly installed on the feed end of the rotary kiln, and an outer ring sleeve sleeved outside the feed pipe and open at the upper end is fixedly installed on the fixed frame, a plurality of upward extending partitions are annularly fixed on the inner bottom wall of the outer ring sleeve, and the annular cavity formed between the outer ring sleeve and the feed pipe is divided into a plurality of filter cavities by the partitions, and filter fillings are embedded and installed in each filter cavity, and a gas hole connected with the filter cavity is formed in the end wall of the feed pipe;

[0009] A plurality of air inlet cavities corresponding to the adjacent two filter cavities are formed in the outer end wall of the outer ring sleeve, and a sealing member for selectively opening and closing the adjacent two filter cavities is slidingly installed at each air inlet cavity, a rotating sleeve connected with the bottom ends of the plurality of sealing members is rotatably sleeved on the bottom end wall of the outer ring sleeve, and a gas supply member movably sleeved outside the outer ring sleeve and connected with the air inlet cavities and the hose is rotatably installed on the top end wall of the fixed frame.

[0010] Further, a vertical rod is fixedly inserted into the interior of the feed pipe, and a spiral material guiding sheet is fixedly sleeved on the vertical rod, and a spiral material guiding sheet is additionally arranged in the feed pipe, which is beneficial to conveying the introduced material downward along the spiral direction of the spiral material guiding sheet, prolongs the conveying path of the material in the feed pipe, and thus the material can be well preheated when the gas with residual heat treated by the filter structure enters the feed pipe.

[0011] Furthermore, the sealing member includes an outer sealing plate that is slidably installed between the upper and lower inner walls of the air inlet chamber and initially located at the outer end of one of the filter chambers, an upper sealing plate located near the top opening of the filter chamber is fixed to the inner top of one side of the outer sealing plate, and an inner sealing plate extending to the inside of the other filter chamber and movably connected to the outer wall of the feed pipe is fixed to the inner end of the upper sealing plate away from the outer sealing plate, and the inner sealing plate is movably connected to the inner wall of the bottom end of the outer ring sleeve.

[0012] Furthermore, convex strips are provided on both left and right ends of the outer sealing plate, and fitting grooves that match the convex strips are provided on both left and right opposite inner walls of the air inlet cavity.

[0013] Furthermore, the outer sealing plates on the blocking member and the inner sealing plates on the adjacent blocking member are distributed inside and outside, and the multiple inner sealing plates are fixedly connected end to end with the adjacent upper sealing plates, and the adjacent outer sealing plates are connected to the inner end wall of the upper sealing plate.

[0014] Furthermore, a movable gap is reserved between the inner ends of the plurality of partitions and the outer wall of the feed pipe for the inner sealing plate to pass through.

[0015] Furthermore, the rotating sleeve is rotatably sleeved on the outer wall of the bottom of the outer ring sleeve and fixedly connected to the outer end walls of multiple outer sealing plates. The outer end of the rotating sleeve is also externally connected to a shift rod.

[0016] Furthermore, a supporting ring is fixedly mounted on the bottom end wall of the fixing frame and is sleeved on the outside of the rotating sleeve. The supporting ring is provided with a slot for the shifting rod to reciprocate along its axis.

[0017] Furthermore, the air supply member includes a sealing rotary sleeve rotatably mounted between the supporting ring and the top wall of the fixing frame, the inner wall of the sealing rotary sleeve is movably connected to the outer end walls of multiple outer sealing plates, a plurality of ventilation pipes evenly distributed and corresponding to the positions of the filter chambers are embedded and installed on the sealing rotary sleeve, a ventilation sleeve connected to the top ends of the multiple ventilation pipes is fixed to the top of the sealing rotary sleeve, and a ventilation slot connected to the filter chamber is opened at the inner end of the ventilation pipe;

[0018] Furthermore, the number of the ventilation pipes is consistent with the number of the air intake cavities, the ventilation sleeve is fixed with an air intake pipe connected to the hose, and the ventilation sleeve is externally connected to a second shift rod.

[0019] Compared with the prior art, the advantages of the present invention are:

[0020] (1) This solution is to improve the exhaust gas treatment structure of the rotary kiln in the prior art. A cyclone separator and a filter structure are added between the tail end of the rotary kiln and the feed pipe. The cyclone separator is used to preliminarily treat the high-temperature exhaust gas discharged from the rotary kiln and remove most of the dust particles in the exhaust gas. The exhaust gas carrying small particles is introduced into the filter structure for secondary filtration treatment. The two groups of filter chambers are opened and closed by the rotatable sealing member. The exhaust gas is introduced into the filter chamber in the open state by the air supply member and filtered by the filter filler. It is then dispersed into the feed pipe through the conductive air holes and mixed with the material conveyed downward. The exhaust gas is recycled to preheat the material. After the filter filler reaches the set service life, the sealing member is rotated to replace the working state of the filter filler in the two groups of filter chambers. The used filter filler can be treated separately without stopping the machine.

[0021] (2) This solution also sets the filter cavity and the filter filler into a fan-shaped structure with a certain height. A plurality of air holes are opened on the end wall of the feed pipe along its vertical direction. The exhaust gas after the initial treatment passes through the vent pipe on the air supply component from the vertical direction to the filter cavity, thereby expanding the exhaust gas filtering surface. The exhaust gas is introduced into the feed pipe through the air holes after the two filtration processes. The air holes are not easy to be clogged by dust while playing the role of air flow dispersion. In addition, a spiral guide piece is added inside the feed pipe, which is conducive to conveying the introduced material downward along the spiral direction of the spiral guide piece, thereby extending the material conveying path in the feed pipe. When the gas treated by the filter filler and with residual heat is dispersed into the feed pipe through the plurality of air holes, the gas is fully mixed with the material in the conveying process, which has a good preheating effect on the material and realizes the utilization of residual heat. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Schematic diagram of the external structure of the present invention;

[0023] Figure 2 It is a structural schematic diagram of the filtering structure of the present invention;

[0024] Figure 3 This is a schematic structural diagram of the present invention when the air supply component is detached from the outer ring sleeve;

[0025] Figure 4 This is a schematic structural diagram of the junction between the outer ring sleeve and the partition plate of the present invention;

[0026] Figure 5 This is a schematic structural diagram of the present invention when one group of filter fillers is pulled upward from the filter cavity;

[0027] Figure 6 It is a structural schematic diagram of the joint of the air intake pipe, the outer ring sleeve and the blocking member of the present invention;

[0028] Figure 7Figure 1 is a partial cross-sectional view of the inner part of the air inlet pipe of the present application;

[0029] Figure 8 Figure 2 is a schematic view of the structure of the present application when the outer ring sleeve is detached from the blocking member;

[0030] Figure 9 Figure 3 is a schematic view of the structure of the present application when the blocking member is rotated to one side to expose two adjacent filter cavities;

[0031] Figure 10 Figure 4 is a partial cross-sectional view of the filter structure of the present application in the initial state;

[0032] Figure 11 Figure 5 is a partial cross-sectional view of the filter structure of the present application after the blocking member and the gas supply member are rotated in the opposite direction.

[0033] Figure 6 is a legend of the drawing;

[0034] 1, rotary kiln; 2, feed pipe; 201, air hole; 202, spiral guide vane; 3, cyclone separator; 4, fixed frame; 5, outer ring sleeve; 501, fitting groove; 502, mounting cavity; 6, partition plate; 7, rotating sleeve; 701, lever one; 8, outer sealing plate; 9, inner sealing plate; 10, upper sealing plate; 11, supporting ring; 12, filter filler; 13, sealing rotating sleeve; 14, air pipe; 141, air slot; 15, air sleeve; 151, lever two; 16, air inlet pipe. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings of the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, but not all the embodiments; based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0036] Embodiment 1: the present application discloses a high-temperature waste gas treatment assembly for a high-ash rotary kiln, please refer to Figure 1-Figure 2 , which comprises a feed pipe 2 mounted on a rotary kiln 1 and a treatment assembly matched with the feed pipe 2 and connected with the tail end of the rotary kiln 1;

[0037] The treatment assembly comprises a cyclone separator 3 connected between the exhaust pipe and the tail end of the rotary kiln 1, and a filter structure sleeved and mounted outside the feed pipe 2 and connected with the inside of the feed pipe 2; the filter structure is connected with the exhaust port of the cyclone separator 3 through a hose; the cyclone separator 3 is used for preliminarily treating the high-temperature waste gas discharged from the rotary kiln 1, and removing most of the dust particles in the waste gas; the waste gas carrying small particles is discharged into the filter structure through the hose for filtering treatment, and the treated gas is introduced into the feed pipe 2 again;

[0038] Among them, see Figure 3-Figure 6 The filtering structure includes a fixing frame 4 fixedly mounted on the feed end of the rotary kiln 1, an outer ring sleeve 5 with an upper end opening fixedly mounted on the fixing frame 4, a plurality of partitions 6 extending upward are fixed in an annular manner on the inner bottom wall of the outer ring sleeve 5, and the plurality of partitions 6 divide the annular cavity formed between the outer ring sleeve 5 and the feed pipe 2 into a plurality of filter cavities, and the filter cavity has a fan-shaped structure, and a filter filler 12 matching its structure is embedded in each filter cavity, and a mounting cavity 502 for embedding and installing the bottom of the filter filler 12 is opened on the bottom end wall of the outer ring sleeve 5;

[0039] The filter filler 12 is embedded in the filter cavity from top to bottom, and a sealing cover is provided on the top of the filter filler 12. When in use, it is sealed at the opening at the top of the filter cavity. The end wall of the feed pipe 2 is provided with air holes 201 connected to the filter cavity, and the outer end wall of the outer ring sleeve 5 is provided with multiple air inlet cavities corresponding to two adjacent filter cavities. The exhaust gas is introduced into the filter cavity through the air inlet cavity and filtered by the filter filler 12. The treated gas is evenly diffused into the feed pipe 2 through multiple air holes 201, mixed with the material transmitted downward, and preheated The material, the exhaust gas is filtered twice by the filter filler 12 and then passed into the inside of the feed pipe 2 through the air holes 201. The air holes 201 are not easy to be clogged by dust.

[0040] See also Figure 7 A vertical rod is fixedly inserted into the inside of the feed pipe 2, and a spiral guide piece 202 is fixedly sleeved on the vertical rod. Adding a section of spiral guide piece 202 in the feed pipe 2 is conducive to conveying the introduced material downward along the spiral direction of the spiral guide piece 202, extending the conveying path of the material in the feed pipe 2, so that when the gas with waste heat treated by the filtering structure enters the feed pipe 2, it can preheat the material well.

[0041] See also Figure 6 、 Figures 8-11 , each air inlet cavity is slidably mounted with a blocking piece for selectively opening and closing two adjacent filter cavities, the bottom end wall of the outer ring sleeve 5 is rotatably sleeved with a rotating sleeve 7 connected to the bottom ends of multiple blocking pieces, and multiple groups of blocking pieces are provided, and the number of the blocking pieces is generally the same as the number of filter cavities. The blocking piece is used to selectively close one of the two adjacent filter cavities, that is, one of the filter cavities is in an open state and the other is in a closed state;

[0042] The top wall of the fixed frame 4 is rotatably installed with an air supply part that is movably connected to the outside of the outer ring sleeve 5 and is connected to the air inlet cavity and the hose. The exhaust gas after the initial filtration by the cyclone separator 3 is introduced into the air supply part through the hose, and then it is diverted by multiple air inlet cavities to the internal filter cavity in the open state, and is filtered by the filter filler 12 there. When the filter filler 12 in the filter cavity that is initially in the open state reaches the saturation index after being used for a period of time, the rotating sleeve 7 is rotated to drive multiple groups of sealing parts to rotate, and the filter cavity that reaches the saturation index is blocked, and another group of filter fillers 12 is opened. The air supply part is then connected to the filter cavity with the opened filter filler 12, so that the two groups of filter fillers 12 can be used alternately, and the saturated filter filler 12 is then replaced.

[0043] Example 2: Based on Example 1, this example describes in detail the specific structures of the blocking member and the air supply member, as follows:

[0044] See also Figure 6 、 Figures 8-11 , the sealing member includes an outer sealing plate 8 which is slidably mounted between the upper and lower inner walls of the air inlet cavity and initially located at the outer end of one of the filter cavities, an upper sealing plate 10 located near the top opening of the filter cavity is fixed to the inner top of one side of the outer sealing plate 8, and an inner sealing plate 9 which extends to the inside of the other filter cavity and is movably connected with the outer wall of the feed pipe 2 is fixed to the inner end of the upper sealing plate 10 away from the outer sealing plate 8, the inner sealing plate 9 is movably connected with the inner wall of the bottom end of the outer ring sleeve 5, and convex strips are provided on both ends of the outer sealing plate 8, and fitting grooves 501 which are adapted to the convex strips are provided on the left and right opposite inner walls of the air inlet cavity;

[0045] The outer sealing plate 8 on the blocking piece and the inner sealing plate 9 on the adjacent blocking piece are distributed inside and outside, and the multiple inner sealing plates 9 are fixedly connected to the adjacent upper sealing plate 10 end to end, and the adjacent outer sealing plates 8 are connected to the inner end wall of the upper sealing plate 10. A movable gap for the inner sealing plate 9 to pass through is reserved between the inner ends of the multiple partitions 6 and the outer wall of the feed pipe 2;

[0046] In the initial state, one end of a plurality of staggered outer sealing plates 8 is embedded one by one in the fitting groove 501 of the air inlet cavity, and the outer sealing plate 8 blocks the outside of one of the filter cavities corresponding to the same air inlet cavity. The left and right sides of the outer sealing plate 8 are located outside the partition plates 6 on both sides of the filter cavity, and the inner sealing plate 9 on a sealing member connected thereto is movably docked at the outer end wall of the feed pipe 2 on its inner side, blocking both the inside and outside of the filter cavity at this location. The filter filler 12 in the filter cavity at this location is in a blocked state, and the top end of another adjacent filter cavity is closed by the upper sealing plate 10, and the outer side is connected to the air inlet cavity, and the inner side is connected to the air hole 201. The exhaust gas introduced by the air supply member is introduced into the conductive filter cavity through the air inlet cavity for filtration treatment;

[0047] The rotating sleeve 7 is rotatably sleeved on the outer wall of the bottom of the outer ring sleeve 5 and is fixedly connected to the outer end walls of multiple outer sealing plates 8. The outer end of the rotating sleeve 7 is also externally connected to a shift rod 701. The bottom end wall of the fixed frame 4 is fixedly mounted with a supporting ring 11 sleeved on the outside of the rotating sleeve 7. The supporting ring 11 is provided with a slot for the shift rod 701 to reciprocate along its axis. The multiple outer sealing plates 8 are connected together by the rotating sleeve 7, so that multiple sealing members can be rotated to a certain angle toward the same side.

[0048] The outer sealing plate 8 and the inner sealing plate 9 of the filter cavity which were originally in an idle state rotate to the filter cavity which is in a predetermined period of use to seal it. The upper sealing plate 10 which was originally located at the top of the filter cavity in use rotates to the top of the adjacent idle filter cavity to seal the filter cavity. The filter cavity corresponding to the unused filter filler 12 next to it is opened to complete the alternating use of the filter filler 12. At this time, the technician can extract the adsorption saturated filter filler 12 upward from the filter cavity opening for replacement. In this process, the rotary kiln 1 does not need to be shut down and the normal operation of the rotary kiln 1 is not affected.

[0049] See also Figure 2 、 Figure 3 The air supply part includes a sealing rotary sleeve 13 rotatably installed between the supporting ring 11 and the top wall of the fixing frame 4. The inner wall of the sealing rotary sleeve 13 is movably connected with the outer end walls of multiple outer sealing plates 8. A plurality of evenly distributed ventilation pipes 14 corresponding to the positions of the filter chambers are embedded and installed on the sealing rotary sleeve 13. A ventilation sleeve 15 connected to the top of the multiple ventilation pipes 14 is fixed on the top of the sealing rotary sleeve 13. A ventilation slot 141 connected to the filter chamber is provided at the inner end of the ventilation pipe 14. The number of the ventilation pipes 14 is consistent with the number of the air inlet chambers. An air inlet pipe 16 connected to the hose is fixed on the ventilation sleeve 15, and the ventilation sleeve 15 is externally connected to a second lever 151.

[0050] See also Figure 10 、 Figure 11 , a plurality of vent pipes 14 with the same number as the blocking pieces are added to the outer end wall of the sealing rotary sleeve 13. During operation, the plurality of vent pipes 14 on the sealing rotary sleeve 13 are rotated to the plurality of opened filter chambers, and the two are connected. The exhaust gas preliminarily filtered by the cyclone separator 3 is diverted to the plurality of filter chambers for filtration treatment through the vent slots 141 on the plurality of vent pipes 14. When the used filter filler 12 is replaced within the set use time, the blocking piece rotates a certain angle with the rotating sleeve 7, and the plurality of vent pipes 14 rotate synchronously with the sealing rotary sleeve 13 in the opposite direction by a certain angle, so that the plurality of vent pipes 14 are connected one by one with the newly opened plurality of filter chambers.

[0051] When the filter packing 12 is replaced for the second time, the rotating sleeve 7 only needs to be retracted by a certain angle, and the outer sealing plate 8 is retracted from one filter cavity at the air inlet cavity to the outside of the other filter cavity, so that two groups of filter packings 12 can be used alternately.

[0052] The present invention improves the prior art rotary kiln exhaust gas treatment equipment by adding a cyclone separator 3 and a filtering structure between the outer end wall of the rotary kiln 1 and the feed pipe 2. The cyclone separator 3 is used to perform preliminary treatment on the high-temperature exhaust gas discharged from the rotary kiln 1, removing most of the dust particles in the exhaust gas. The exhaust gas carrying small particles is then introduced into the filtering structure for secondary filtration treatment.

[0053] The filtering structure consists of an outer ring sleeve 5 with multiple groups of filter cavities, a sealing member for selectively opening and closing one of the filter cavities in each group, and an air supply member for passing the exhaust gas to the filter cavity in the conductive state. A filter filler 12 is embedded in each filter cavity, and the two groups of filter cavities are opened and closed by the rotatable sealing member. The exhaust gas is passed from the air supply member into the filter cavity in the open state and filtered by the filter filler 12. It is then dispersed into the feed pipe 2 through the conductive air holes 201 and mixed with the material conveyed downward. The exhaust gas is recovered and preheated to the material. After the filter filler 12 reaches the set service life, the sealing member is rotated to replace the working state of the filter fillers 12 in the two groups of filter cavities, and the used filter fillers 12 are replaced separately without shutting down the machine.

[0054] The above are only preferred specific implementation methods of the present invention; however, the protection scope of the present invention is not limited thereto; any technician familiar with the technical field within the technical scope disclosed by the present invention; any equivalent replacement or change based on the technical solution and improved conception of the present invention shall be covered within the protection scope of the present invention.

Claims

1. A high-temperature exhaust gas treatment component for a high-ash rotary kiln, comprising a feed pipe (2) mounted on the rotary kiln (1) and a treatment component matched with the feed pipe (2) and connected to the rear end of the rotary kiln (1), characterized in that: The processing assembly comprises a cyclone separator (3) connected to each other and a filtering structure sleeved and mounted on the outside of the feed pipe (2) and in communication with the feed pipe; The filtering structure comprises a fixing frame (4) fixedly mounted on the feed end of the rotary kiln (1), an outer ring sleeve (5) which is sleeved on the outside of the feed pipe (2) and has an open upper end is fixedly mounted on the fixing frame (4), a plurality of partitions (6) extending upward are annularly fixed on the inner bottom wall of the outer ring sleeve (5), the plurality of partitions (6) divide the annular cavity formed between the outer ring sleeve (5) and the feed pipe (2) into a plurality of filter cavities, each filter cavity is embedded with a filter filler (12), and an air hole (201) communicating with the filter cavity is opened on the end wall of the feed pipe (2); The outer end wall of the outer ring sleeve (5) is provided with a plurality of air inlet cavities corresponding to two adjacent filter cavities, and a blocking piece for selectively opening and closing the two adjacent filter cavities is slidably installed at each air inlet cavity. The bottom end wall of the outer ring sleeve (5) is rotatably connected to a rotating sleeve (7) connected to the bottom ends of the plurality of blocking pieces, and the top end wall of the fixed frame (4) is rotatably installed with an air supply piece movably connected to the outside of the outer ring sleeve (5) and connected to the air inlet cavity and the hose; The blocking member comprises an outer sealing plate (8) which is slidably mounted between the upper and lower inner walls of the air inlet cavity and initially located at the outer end of one of the filter cavities; an upper sealing plate (10) located near the top opening of the filter cavity is fixed to the inner top of one side of the outer sealing plate (8); an inner sealing plate (9) which extends to the inside of the other filter cavity and is movably connected to the outer wall of the feed pipe (2) is fixed to the inner end of the upper sealing plate (10) away from the outer sealing plate (8); the inner sealing plate (9) is movably connected to the inner wall of the bottom end of the outer ring sleeve (5); The air supply component comprises a sealing rotary sleeve (13) rotatably mounted between a supporting ring (11) and a top wall of a fixing frame (4); a plurality of ventilation pipes (14) evenly distributed and corresponding to positions of the filter chambers are embedded on the sealing rotary sleeve (13); and a ventilation sleeve (15) fixed to the top ends of the plurality of ventilation pipes (14); and a ventilation slot (141) communicating with the filter chamber is provided at the inner end of the ventilation pipe (14).

2. The high-temperature exhaust gas treatment assembly for a high-ash rotary kiln according to claim 1, characterized in that: A vertical rod is fixedly inserted into the interior of the feed pipe (2), and a spiral guide piece (202) is fixedly sleeved on the vertical rod.

3. The high-temperature exhaust gas treatment assembly for a high-ash rotary kiln according to claim 1, characterized in that: The outer sealing plate (8) is provided with convex strips at both left and right ends, and the left and right opposite inner walls of the air inlet cavity are provided with engaging grooves (501) adapted to the convex strips.

4. The high-temperature exhaust gas treatment assembly for a high-ash rotary kiln according to claim 3, characterized in that: The outer sealing plates (8) on the blocking member and the inner sealing plates (9) on the adjacent blocking member are distributed inside and outside, and the plurality of inner sealing plates (9) and the adjacent upper sealing plates (10) are fixedly connected end to end, and the adjacent outer sealing plates (8) are connected to the inner end wall of the upper sealing plate (10).

5. The high-temperature exhaust gas treatment assembly for a high-ash rotary kiln according to claim 4, characterized in that: A movable gap is reserved between the inner ends of the plurality of partitions (6) and the outer wall of the feed pipe (2) for the inner sealing plate (9) to pass through.

6. The high-temperature exhaust gas treatment assembly for a high-ash rotary kiln according to claim 5, characterized in that: The rotating sleeve (7) is rotatably sleeved on the outer wall of the bottom of the outer ring sleeve (5) and fixedly connected to the outer end walls of multiple outer sealing plates (8). The outer end of the rotating sleeve (7) is also externally connected to a shift rod (701).

7. The high-temperature exhaust gas treatment assembly for a high-ash rotary kiln according to claim 6, characterized in that: The bottom end wall of the fixed frame (4) is provided with a supporting ring (11) sleeved on the outside of the rotating sleeve (7), and a slot is provided on the supporting ring (11) for the shifting rod (701) to rotate back and forth left and right.

8. The high-temperature exhaust gas treatment assembly for a high-ash rotary kiln according to claim 1, characterized in that: The number of the ventilation pipes (14) is consistent with the number of the air inlet cavities. An air inlet pipe (16) connected to the hose is fixed on the ventilation sleeve (15), and the ventilation sleeve (15) is externally connected to a second shifting rod (151).

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