Purification equipment and method for preparing fire coal catalyst

Abstract

The invention belongs to separation equipment, and more particularly relates to the field of purification, and discloses purification equipment and method for preparing a fire coal catalyst.The purification equipment comprises a first supporting cylinder, an exhaust pipeline is fixed to the bottom of a supporting box, a rotating column is rotationally connected to the inner bottom of the first supporting cylinder, and spiral blades are fixed to the outer side of the rotating column; and an opening and closing control mechanism is fixed to one side of the second supporting cylinder and extends into the second supporting cylinder, and a linkage opening and closing mechanism is fixed to the other side of the second supporting cylinder, penetrates through the bottom of the second supporting cylinder and is connected into the through hole in a clamped mode. According to the purification equipment for preparing the fire coal catalyst, waste gas is introduced into the first supporting barrel, calcium carbonate in the first supporting barrel can conduct desulfurization treatment on the waste gas, calcium oxide on a cushion net can absorb water and conduct secondary desulfurization treatment on the waste gas, and after the waste gas enters the supporting box, activated carbon blocks can adsorb other harmful substances in the waste gas; and efficient purification is facilitated.

Description

Technical Field

[0001] This invention pertains to separation equipment, and more specifically to the field of purification, specifically a purification device and method for preparing coal-fired catalysts. Background Technology

[0002] Coal is my country's primary energy source, accounting for about 70% of total energy consumption. Although my country's coal resources are quite abundant, with proven reserves exceeding 400 billion tons, ranking first in the world, in terms of coal quality, my country has a large proportion of difficult-to-process coal, with high-ash and high-sulfur coal. Medium- and high-sulfur coal with a sulfur content of more than 2% and high-sulfur coal account for about one-third of the total reserves. The harmful gases such as SOx and NOx emitted from coal combustion, as well as soot, cause typical coal-smoke pollution in my country's urban air. The preparation of coal-fired catalysts also produces toxic gases such as sulfur dioxide. In order to purify the waste gas, purification equipment is required.

[0003] Existing purification equipment is not efficient or thorough enough in desulfurizing waste gas, and it is difficult to dehydrate the waste gas at the same time as desulfurization. This will affect the use of activated carbon. Activated carbon will become damp and its ability to adsorb harmful substances will be affected. To address the above problems, the existing equipment needs to be improved. Summary of the Invention

[0004] The purpose of this invention is to provide a purification device and method for preparing coal-fired catalysts, in order to solve the problems mentioned in the background art that the existing purification devices are not efficient and thorough enough in desulfurizing waste gas, and that it is difficult to dehydrate the waste gas at the same time as desulfurization, which will affect the subsequent use of activated carbon. Activated carbon will also be affected by moisture, which will affect its ability to adsorb harmful substances.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a purification device for preparing coal-fired catalysts, comprising a first support cylinder, a drain pipe fixed to one side of the first support cylinder, an air inlet pipe fixed to the top of the drain pipe, a second support cylinder fixed to the top of the first support cylinder, the second support cylinder being connected to the first support cylinder via a first connecting pipe, a mesh pad fixed to the inner side of the second support cylinder, the mesh pad having through holes, a feed inlet at the top of the second support cylinder, an air outlet pipe fixed to the top of the second support cylinder, a support box fixed to one side of the second support cylinder, the support box being connected to the end of the air outlet pipe, an end cap fixed to one side of the support box by bolts, an activated carbon block fixed to one side of the end cap, the activated carbon block being snapped into the support box, and an exhaust pipe fixed to the bottom of the support box.

[0006] A rotating column is rotatably connected to the inner bottom of the first support cylinder, and a spiral blade is fixed to the outer side of the rotating column. An opening and closing control mechanism is fixed to one side of the second support cylinder, and the opening and closing control mechanism extends into the second support cylinder. A linkage opening and closing mechanism is fixed to the other side of the second support cylinder, and the linkage opening and closing mechanism passes through the bottom of the second support cylinder and is engaged in the through hole.

[0007] Preferably, a motor is fixed inside the bottom of the first support cylinder, and the top of the motor is connected to the rotating column. A support plate is fixed inside the second support cylinder, the rotating column is rotatably connected to the bottom of the support plate, and the spiral blade is located inside the first support cylinder.

[0008] Preferably, a brush is fixed to the outside of the rotating column, and the brush is placed on the pad net. There are four brushes, and the four brushes are evenly distributed on the rotating column in the circumferential direction.

[0009] Preferably, the opening and closing control mechanism includes an electric telescopic rod, which is fixed to one side of the second support cylinder. Slide rails are symmetrically fixed on the two inner walls of the second support cylinder, and a first sealing plate is slidably connected between the slide rails on the two inner walls of the second support cylinder. The electric telescopic rod passes through one side of the second support cylinder and one side of the first sealing plate and is connected to a first piston. A second oil groove is opened in the first sealing plate, and the first piston is slidably connected in the first oil groove. The first piston is connected to one inner wall of the first oil groove through a first spring.

[0010] Preferably, a second oil groove is provided in the first sealing plate, and the second oil groove is connected to the first oil groove through a second connecting pipe. A second piston is slidably connected in the second oil groove, and a pipe plug is fixed on the top of the second piston. A groove is provided on the upper end face of the first sealing plate, and the pipe plug is engaged in the groove.

[0011] Preferably, the linkage opening and closing mechanism includes a first hydraulic cylinder, which is fixed to the other side of the second support cylinder. A third piston is slidably connected inside the first hydraulic cylinder, and the third piston is connected to an inner wall of the first hydraulic cylinder through a second spring. A movable rod is fixed to one side of the third piston, and the movable rod passes through one side of the first hydraulic cylinder and extends into the second support cylinder.

[0012] Preferably, a third oil groove is provided on one side of the top of the second support cylinder, and a fourth piston is slidably connected in the third oil groove. A locking block is fixed at the bottom of the fourth piston, and a locking groove is provided at the top of the movable rod. The locking block is engaged in the locking groove.

[0013] Preferably, a fourth oil groove is provided on the other side of the top of the second support cylinder, and the fourth oil groove is connected to the third oil groove through a third connecting pipe. A fifth piston is slidably connected in the fourth oil groove, and a movable block is fixed at the bottom of the fifth piston. The movable block penetrates the inner top of the second support cylinder.

[0014] Preferably, an arc-shaped pipe is fixed between the first support cylinder and the second support cylinder, and the arc-shaped pipe is connected to the first oil cylinder through a fourth connecting pipe. Second oil cylinders are symmetrically fixed on both sides of the bottom of the second support cylinder, and the second oil cylinders are connected to the arc-shaped pipe through branch pipes. A sixth piston is slidably connected inside the second oil cylinder, and the sixth piston passes through the top of the second oil cylinder and is connected to the second sealing plate. A sealing ring is fixed on the upper end face of the second sealing plate, and the sealing ring is engaged in the through hole.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. This purification equipment for preparing coal-fired catalysts can achieve a full reaction. When the first sealing plate moves to the right to the bottom, the second sealing plate moves down and opens the through hole. Then the first piston continues to move to the right, and the second piston and the tube plug move up and seal the gas outlet pipe. After calcium oxide, water and carbon dioxide are introduced into the second support cylinder, calcium oxide, water and carbon dioxide enter the first support cylinder and react to generate calcium carbonate and water. Calcium carbonate can be used for desulfurization of waste gas. The rotation of the rotating column can drive the spiral blade to rotate, making the reaction more complete.

[0016] 2. This purification equipment for preparing coal-fired catalysts can achieve secondary desulfurization, dehydration, and adsorption purification. After calcium oxide, water, and carbon dioxide are introduced into the first support cylinder, the first sealing plate moves to the left to the bottom, and the second sealing plate moves up to seal the through hole. Then, the first sealing plate moves to the right a short distance to introduce calcium oxide into the second support cylinder. The calcium oxide falls onto the pad mesh, and the brush rotates with the rotating column to facilitate spreading the calcium oxide. After the first sealing plate moves to the left to seal the feed inlet, the exhaust gas is introduced into the first support cylinder. The calcium carbonate in the first support cylinder can desulfurize the exhaust gas, and the calcium oxide on the pad mesh can absorb water and perform secondary desulfurization on the exhaust gas. After the exhaust gas enters the support box, the activated carbon blocks can adsorb other harmful substances in the exhaust gas, facilitating efficient purification.

[0017] 3. This purification equipment for preparing coal-fired catalysts allows for easy replacement. Before replacing the material in the first support cylinder, the flow of exhaust gas needs to be stopped. Then, the valve on the drain pipe is opened to drain the material in the first support cylinder. After closing the valve on the drain pipe, the first sealing plate moves to the right and to the bottom, and the second sealing plate moves down to open the through hole. The brush sweeps the calcium oxide on the pad into the first support cylinder. Then, water and carbon dioxide are introduced into the first support cylinder to react. After sealing the through hole, calcium oxide is continued to be introduced into the pad to facilitate continued desulfurization and purification of the exhaust gas. Attached Figure Description

[0018] Figure 1 This is a 3D physical image of the present invention; Figure 2 This is a frontal three-dimensional structural diagram of the present invention; Figure 3 This is a rear-view stereoscopic structural diagram of the present invention; Figure 4 This is a frontal cross-sectional view of the present invention; Figure 5 This is a schematic diagram of the connection structure of the rotating column, spiral blades and brush of the present invention; Figure 6 This is a schematic diagram of the connection structure between the opening and closing control mechanism and the slide rail of the present invention; Figure 7 This is a schematic diagram of the opening and closing control mechanism of the present invention; Figure 8 This is a schematic diagram of the linkage opening and closing mechanism of the present invention; Figure 9 This is a schematic diagram of the connection structure of the second support cylinder, the feed inlet, the air outlet pipe and the third connecting pipe of the present invention. Figure 10 For the present invention Figure 4 Enlarged structural diagram at point A in the middle; Figure 11 For the present invention Figure 4 Enlarged structural diagram at point B; Figure 12 For the present invention Figure 4 Enlarged structural diagram at point C.

[0019] In the diagram: 1. First support cylinder; 2. Drainage pipe; 3. Air inlet pipe; 4. Second support cylinder; 5. First connecting pipe; 6. Gasket; 7. Through hole; 8. Feed inlet; 9. Air outlet pipe; 10. Support box; 11. End cap; 12. Activated carbon block; 13. Exhaust pipe; 14. Motor; 15. Rotary column; 16. Spiral blade; 17. Sweeping brush; 18. Support plate; 19. Opening and closing control mechanism; 1901. Electric telescopic rod; 1902. First sealing plate; 1903. First oil tank; 1904. First piston; 1905. First spring; 1906. Second connecting pipe; 1907. Second oil tank; 1908. Second piston; 1909. Pipe plug; 1910. Groove; 20. Slide rail; 21. Linked opening and closing mechanism; 2101. First hydraulic cylinder; 2102. Third piston; 2103. Second spring; 2104. Movable rod; 2105. Third oil groove; 2106. Fourth piston; 2107. Locking block; 2108. Locking groove; 2109. Third connecting pipe; 2110. Fourth oil groove; 2111. Fifth piston; 2112. Movable block; 2113. Fourth connecting pipe; 2114. Arc-shaped pipe; 2115. Branch pipe; 2116. Second hydraulic cylinder; 2117. Sixth piston; 2118. Second sealing plate; 2119. Sealing ring. Detailed Implementation

[0020] 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 skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figures 1-12 This invention provides a technical solution: a purification device for preparing coal-fired catalysts, comprising a first support cylinder 1, a drain pipe 2 fixed to one side of the first support cylinder 1, an air inlet pipe 3 fixed to the top of the drain pipe 2, a second support cylinder 4 fixed to the top of the first support cylinder 1, the second support cylinder 4 being connected to the first support cylinder 1 via a first connecting pipe 5, a pad 6 fixed to the inner side of the second support cylinder 4, the pad 6 having through holes 7, a feed inlet 8 at the top of the second support cylinder 4, an air outlet pipe 9 fixed to the top of the second support cylinder 4, a support box 10 fixed to one side of the second support cylinder 4, the support box 10 being connected to the end of the air outlet pipe 9, an end cap 11 fixed to one side of the support box 10 by bolts, an activated carbon block 12 fixed to one side of the end cap 11, the activated carbon block 12 being snapped into the support box 10, and an exhaust pipe 13 fixed to the bottom of the support box 10.

[0022] The bottom of the first support cylinder 1 is rotatably connected to a rotating column 15, and a spiral blade 16 is fixed to the outside of the rotating column 15. A control mechanism 19 is fixed to one side of the second support cylinder 4 and extends into the second support cylinder 4. A linkage opening and closing mechanism 21 is fixed to the other side of the second support cylinder 4 and passes through the bottom of the second support cylinder 4 and is engaged in the through hole 7.

[0023] In this embodiment, as Figure 4 and Figure 5 As shown, a motor 14 is fixed inside the bottom of the first support cylinder 1, and the top of the motor 14 is connected to the rotating column 15. A support plate 18 is fixed inside the second support cylinder 4, and the rotating column 15 is rotatably connected to the bottom of the support plate 18. The spiral blade 16 is located inside the first support cylinder 1. After calcium oxide, water and carbon dioxide are introduced into the first support cylinder 1, the rotating column 15 can rotate under the action of the motor 14, thereby driving the spiral blade 16 to rotate, so that calcium oxide, water and carbon dioxide can fully react to generate calcium carbonate and water. After the exhaust gas is introduced into the first support cylinder 1, the calcium carbonate can desulfurize the exhaust gas. At the same time, the spiral blade 16 rotates together with the rotating column 15, and the spiral blade 16 plays a stirring role for the calcium carbonate, which facilitates full desulfurization.

[0024] In this embodiment, as Figure 4 , Figure 5 and Figure 10 As shown, a brush 17 is fixed on the outside of the rotating column 15, and the brush 17 is placed on the pad 6. There are four brushes 17, and the four brushes 17 are evenly distributed on the rotating column 15. After calcium oxide is passed onto the pad 6, the rotating column 15 rotates, which drives the four brushes 17 to rotate, so that the calcium oxide can be evenly spread on the pad 6. The calcium oxide can absorb the moisture in the exhaust gas and can perform secondary desulfurization.

[0025] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 , Figure 7As shown, the opening and closing control mechanism 19 includes an electric telescopic rod 1901, which is fixed to one side of the second support cylinder 4. Slide rails 20 are symmetrically fixed on the two inner walls of the second support cylinder 4, and a first sealing plate 1902 is slidably connected between the slide rails 20 on the two inner walls of the second support cylinder 4. The electric telescopic rod 1901 passes through one side of the second support cylinder 4 and one side of the first sealing plate 1902 and is connected to the first piston 1904. A second oil groove 1907 is opened inside the first sealing plate 1902, and the first piston 1904 is slidably connected inside the first oil groove 1903. The first piston 1904 is connected to the inner wall of the first oil groove 1903 via the first spring 1905. The first piston 1904, the first spring 1905, and the first sealing plate 1902 can move left and right as a whole under the extension and retraction of the electric telescopic rod 1901, which facilitates the control of the opening and closing of the feed port 8. After the first sealing plate 1902 moves to the right to the bottom, when the electric telescopic rod 1901 continues to retract, the first piston 1904 continues to move to the right, which facilitates the expulsion of hydraulic oil in the first oil groove 1903. The slide rail 20 plays a supporting and limiting role during the movement of the first sealing plate 1902.

[0026] In this embodiment, as Figure 4 , Figure 6 , Figure 7 As shown, a second oil groove 1907 is provided in the first sealing plate 1902, and the second oil groove 1907 is connected to the first oil groove 1903 through the second connecting pipe 1906. A second piston 1908 is slidably connected in the second oil groove 1907, and a pipe plug 1909 is fixed on the top of the second piston 1908. A groove 1910 is provided on the upper end face of the first sealing plate 1902, and the pipe plug 1909 is engaged in the groove 1910. The second connecting pipe 1906 serves to connect the first oil groove 1903 and the second oil groove 1907. When the first piston 1904 moves to the right in the first oil groove 1903, the second piston 1908 can move upward under the action of oil pressure, and the pipe plug 1909 moves upward and is engaged in the vent pipe 9, which facilitates sealing the vent pipe 9 and prevents the hot gas generated by the reaction of the substances in the first support cylinder 1 from entering the vent pipe 9 and the support box 10.

[0027] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 11As shown, the linkage opening and closing mechanism 21 includes a first oil cylinder 2101, which is fixed to the other side of the second support cylinder 4. A third piston 2102 is slidably connected inside the first oil cylinder 2101, and the third piston 2102 is connected to an inner wall of the first oil cylinder 2101 through a second spring 2103. A movable rod 2104 is fixed to one side of the third piston 2102, and the movable rod 2104 passes through one side of the first oil cylinder 2101 and extends into the second support cylinder 4. After the movable rod 2104 is unlocked, the movable rod 2104 and the third piston 2102 can automatically spring apart under the action of the second spring 2103, which facilitates the extraction of oil into the first oil cylinder 2101.

[0028] In this embodiment, as Figure 4 and Figure 11 As shown, a third oil groove 2105 is provided on one side of the top of the second support cylinder 4, and a fourth piston 2106 is slidably connected in the third oil groove 2105. A locking block 2107 is fixed at the bottom of the fourth piston 2106, and a locking groove 2108 is provided at the top of the movable rod 2104. The locking block 2107 is engaged in the locking groove 2108. When the fourth piston 2106 moves upward, it can drive the locking block 2107 to move upward. After the locking block 2107 leaves the locking groove 2108, the movable rod 2104 can be unlocked, and the movable rod 2104 and the third piston 2102 will automatically pop apart.

[0029] In this embodiment, as Figure 4 , Figure 9 , Figure 11 and Figure 12 As shown, a fourth oil groove 2110 is provided on the other side of the top of the second support cylinder 4, and the fourth oil groove 2110 is connected to the third oil groove 2105 through the third connecting pipe 2109. A fifth piston 2111 is slidably connected in the fourth oil groove 2110, and a movable block 2112 is fixed at the bottom of the fifth piston 2111. The movable block 2112 passes through the inner top of the second support cylinder 4. The third connecting pipe 2109 serves to connect the third oil groove 2105 and the fourth oil groove 2110. When the first sealing plate 1902 moves to the right to the bottom, it will squeeze the movable block 2112 and the fifth piston 2111 to move upward. The fourth piston 2106 and the locking block 2107 move upward, which facilitates the unlocking of the movable rod 2104.

[0030] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 8 , Figure 10 , Figure 11 and Figure 12As shown, an arc-shaped pipe 2114 is fixed between the first support cylinder 1 and the second support cylinder 4, and the arc-shaped pipe 2114 is connected to the first oil cylinder 2101 through the fourth connecting pipe 2113. Second oil cylinders 2116 are symmetrically fixed on both sides of the bottom of the second support cylinder 4, and the second oil cylinders 2116 are connected to the arc-shaped pipe 2114 through the branch pipe 2115. A sixth piston 2117 is slidably connected inside the second oil cylinder 2116, and the sixth piston 2117 penetrates the top of the second oil cylinder 2116 and is connected to the second sealing plate 2118. A sealing ring 2119 is fixed to the upper end face of the second sealing plate 2118, and the sealing ring 2119... 19 is engaged within the through hole 7. The fourth connecting pipe 2113, the arc-shaped pipe 2114, and the branch pipe 2115 connect the first oil cylinder 2101 and the two second oil cylinders 2116. When the third piston 2102 moves to the right, the two sixth pistons 2117 move downward, thereby driving the second sealing plate 2118 and the sealing ring 2119 downward to facilitate opening the through hole 7. When the third piston 2102 moves to the left, the two sixth pistons 2117 move upward, thereby driving the second sealing plate 2118 and the sealing ring 2119 upward to facilitate sealing the through hole 7. The sealing ring 2119 can enhance the sealing effect.

[0031] According to another aspect of the present invention, a purification method for preparing coal-fired catalysts is provided, comprising the following steps: The working principle of this device is as follows: The inlet pipe 3 is connected to the exhaust pipe of the coal-fired catalyst preparation equipment, and then connected to an external power source. When the electric telescopic rod 1901 retracts, the first piston 1904 and the first sealing plate 1902 move to the right as a whole, thereby opening the feed inlet 8. When the first sealing plate 1902 moves to the right to its lowest point, the movable block 2112 and the fifth piston 2111 are compressed and move upwards. The fourth piston 2106 and the locking block 2107 move upwards, thereby unlocking the movable rod 2104. The movable rod 2104 and the third piston 2102 automatically spring open to the right, and the two sixth pistons 2117, the second sealing plate 2118, and the sealing ring 2119 move downwards, thus… When the through hole 7 is opened and the electric telescopic rod 1901 continues to retract, the first piston 1904 continues to move to the right, and the second piston 1908 and the pipe plug 1909 move upward. The pipe plug 1909 seals the gas outlet pipe 9, allowing calcium oxide, water, and carbon dioxide to pass into the second support cylinder 4. Calcium oxide, water, and carbon dioxide pass through the through hole 7 into the first support cylinder 1 and react to produce calcium carbonate and water. The rotating column 15 rotates, driving the spiral blade 16 to rotate, making the reaction more complete. Then, the first sealing plate 1902 moves to the left to the bottom, and the movable rod 2104 and the third piston 2102 are squeezed and move to the left. The two sixth pistons 2117, the second sealing plate 2118, and the sealing ring 211... 9 moves upward and seals the through hole 7. The locking block 2107 finally locks the movable rod 2104. Then, the first sealing plate 1902 moves to the right but does not squeeze the movable block 2112. Then, calcium oxide is introduced into the second support cylinder 4. The calcium oxide falls onto the pad 6. After the first sealing plate 1902 moves to the left to seal the feed port 8, the rotating column 15 rotates again. The sweeping brush 17 spreads the calcium oxide on the pad 6. After the exhaust gas is introduced into the first support cylinder 1 through the air inlet pipe 3, the calcium carbonate desulfurizes the exhaust gas. After the exhaust gas enters the second support cylinder 4, it flows upward through the pad 6. The calcium oxide on the pad 6 absorbs the moisture in the exhaust gas and performs secondary desulfurization on the exhaust gas. The exhaust gas exits through the outlet. After the pipe 9 enters the support box 10, the activated carbon block 12 adsorbs other harmful substances in the waste gas. The purified waste gas is discharged through the exhaust pipe 13. The waste gas flow is stopped and the valve on the drain pipe 2 is opened to discharge the substances in the second support cylinder 4. After the valve on the drain pipe 2 is closed and the first sealing plate 1902 is moved to the right to the bottom, the first piston 1904 continues to move to the right. The first piston 1904 moves down to open the through hole 7. The brush 17 rotates and sweeps the calcium oxide on the pad 6 into the through hole 7. The calcium carbonate falls into the first support cylinder 1. Then, water and carbon dioxide are introduced into the first support cylinder 1. The above operation can be repeated to continue the desulfurization and adsorption purification treatment of the waste gas.

[0032] In summary, the purification equipment and method for preparing coal-fired catalysts achieve the goals of full reaction, secondary desulfurization, dehydration, adsorption purification, and convenient replacement, thus meeting people's usage needs.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A purification apparatus for the preparation of a coal combustion catalyst comprising a first support cylinder (1), characterized in that: The side of the first supporting cylinder (1) is fixed with a liquid discharge pipeline (2), the top of the liquid discharge pipeline (2) is fixed with an air inlet pipeline (3), the top of the first supporting cylinder (1) is fixed with a second supporting cylinder (4), the second supporting cylinder (4) is connected with the first supporting cylinder (1) through a first connecting pipeline (5), the inner side of the second supporting cylinder (4) is fixed with a mat net (6), the mat net (6) is provided with through holes (7), the top of the second supporting cylinder (4) is provided with a feeding port (8), the top of the second supporting cylinder (4) is fixed with an air outlet pipeline (9), the side of the second supporting cylinder (4) is fixed with a supporting box (10), the supporting box (10) is connected with the end of the air outlet pipeline (9), the side of the supporting box (10) is fixed with an end cover (11) through bolts, the side of the end cover (11) is fixed with an activated carbon block (12), the activated carbon block (12) is clamped and connected in the supporting box (10), the bottom of the supporting box (10) is fixed with an exhaust pipeline (13). The inner bottom of the first supporting cylinder (1) is rotatably connected with a rotating column (15), the outer side of the rotating column (15) is fixed with a spiral blade (16), the side of the second supporting cylinder (4) is fixed with an opening and closing control mechanism (19), the opening and closing control mechanism (19) extends into the second supporting cylinder (4), the other side of the second supporting cylinder (4) is fixed with a linkage opening and closing mechanism (21), the linkage opening and closing mechanism (21) penetrates through the bottom of the second supporting cylinder (4) and is clamped and connected in the through hole (7).

2. A purification apparatus for the preparation of a coal combustion catalyst according to claim 1, characterized in that: The bottom of the first supporting cylinder (1) is fixed with a motor (14), and the top of the motor (14) is connected with the rotating column (15), the inner side of the second supporting cylinder (4) is fixed with a supporting plate (18), the rotating column (15) is rotatably connected with the bottom of the supporting plate (18), and the spiral blade (16) is located on the inner side of the first supporting cylinder (1).

3. A purification apparatus for the preparation of a coal combustion catalyst according to claim 1, characterized in that: The outer side of the rotating column (15) is fixed with a brush (17), and the brush (17) is placed on the mat net (6), the brush (17) is provided with four, and the four brushes (17) are evenly distributed on the rotating column (15) in the circumferential direction.

4. A purification apparatus for the preparation of a coal combustion catalyst according to claim 1, characterized in that: The opening and closing control mechanism (19) comprises an electric telescopic rod (1901), and the electric telescopic rod (1901) is fixed on the side of the second supporting cylinder (4), the two inner walls of the second supporting cylinder (4) are fixed with sliding rails (20) symmetrically, the first sealing plate (1902) is slidably connected between the sliding rails (20) on the two inner walls of the second supporting cylinder (4), the electric telescopic rod (1901) penetrates through the side of the second supporting cylinder (4) and the side of the first sealing plate (1902) and is connected with the first piston (1904), the first sealing plate (1902) is provided with a second oil groove (1907), the first piston (1904) is slidably connected in the first oil groove (1903), and the first piston (1904) is connected with an inner wall of the first oil groove (1903) through a first spring (1905).

5. A purification apparatus for the preparation of a coal combustion catalyst according to claim 4, characterized in that: The first sealing plate (1902) is internally provided with a second oil groove (1907), and the second oil groove (1907) is communicated with the first oil groove (1903) through a second connecting pipeline (1906), a second piston (1908) is slidably connected in the second oil groove (1907), and a pipe plug (1909) is fixed to the top of the second piston (1908).

6. A purification apparatus for the preparation of a coal combustion catalyst according to claim 1, characterized in that: The linkage opening and closing mechanism (21) comprises a first oil cylinder (2101) fixed to the other side of the second supporting cylinder (4), a third piston (2102) is slidably connected in the first oil cylinder (2101), and the third piston (2102) is connected with an inner wall of the first oil cylinder (2101) through a second spring (2103), one side of the third piston (2102) is fixedly connected with a movable rod (2104), and the movable rod (2104) penetrates through one side of the first oil cylinder (2101) and extends into the second supporting cylinder (4).

7. A purification apparatus for the preparation of a coal combustion catalyst according to claim 6, characterized in that: A third oil groove (2105) is formed in one side of the top of the second supporting cylinder (4), and a fourth piston (2106) is slidably connected in the third oil groove (2105), and a clamping block (2107) is fixed to the bottom of the fourth piston (2106), a clamping groove (2108) is formed in the top of the movable rod (2104), and the clamping block (2107) is clamped and connected in the clamping groove (2108).

8. A purification apparatus for the preparation of a coal combustion catalyst according to claim 7, characterized in that: A fourth oil groove (2110) is formed in the other side of the top of the second supporting cylinder (4), and the fourth oil groove (2110) is communicated with the third oil groove (2105) through a third connecting pipeline (2109), a fifth piston (2111) is slidably connected in the fourth oil groove (2110), and a movable block (2112) is fixed to the bottom of the fifth piston (2111), and the movable block (2112) penetrates through the inner top of the second supporting cylinder (4).

9. A purification apparatus for the preparation of a coal combustion catalyst according to claim 6, characterized in that: An arc-shaped pipeline (2114) is fixed between the first supporting cylinder (1) and the second supporting cylinder (4), and the arc-shaped pipeline (2114) is connected with the first oil cylinder (2101) through a fourth connecting pipeline (2113), two second oil cylinders (2116) are symmetrically fixed to the bottom of the second supporting cylinder (4), and the second oil cylinders (2116) are connected with the arc-shaped pipeline (2114) through branch pipelines (2115), a sixth piston (2117) is slidably connected in the second oil cylinder (2116), and the sixth piston (2117) penetrates through the top of the second oil cylinder (2116) and is connected with a second sealing plate (2118), a sealing ring (2119) is fixed to the upper end surface of the second sealing plate (2118) and is clamped and connected in the through hole (7).

10. A purification method for preparing a coal combustion catalyst, applied to the purification apparatus for preparing a coal combustion catalyst according to any one of claims 1 to 9, characterized by, The method comprises the following steps: S1, when the first sealing plate (1902) moves right to the bottom to open the feed inlet (8), the movable rod (2104) is unlocked, the movable rod (2104) and the third piston (2102) are automatically popped open, the second sealing plate (2118) moves down to open the through hole (7), the first piston (1904) continues to move right, the second piston (1908) and the pipe plug (1909) move up and seal the gas outlet pipeline (9), calcium oxide, water and carbon dioxide are introduced into the second support cylinder (4), calcium oxide, water and carbon dioxide enter the first support cylinder (1) and react to generate calcium carbonate and water, at the same time, the rotating column (15) and the spiral blade (16) rotate, so that the reaction is more sufficient; S2, after the first sealing plate (1902) seals the feed inlet (8), the second sealing plate (2118) automatically seals the through hole (7), and the second sealing plate (2118) is locked, then the first sealing plate (1902) moves right but not to the bottom, calcium oxide is introduced into the second support cylinder (4), and the calcium oxide falls on the pad net (6), after the first sealing plate (1902) seals the feed inlet (8), the rotating column (15) rotates again, and the brush (17) spreads the calcium oxide on the pad net (6); S3, the exhaust gas is introduced into the first support cylinder (1) through the gas inlet pipeline (3), the calcium carbonate performs desulfurization treatment on the exhaust gas, after the exhaust gas enters the second support cylinder (4), the calcium oxide on the pad net (6) absorbs the moisture in the exhaust gas and performs secondary desulfurization treatment on the exhaust gas, after the exhaust gas enters the support box (10), the activated carbon block (12) adsorbs other harmful substances in the exhaust gas, and the purified exhaust gas is discharged through the exhaust pipeline (13); S4, when it is necessary to replace the substances in the first support cylinder (1), first, the introduction of the exhaust gas is paused, then the valve on the liquid discharge pipeline (2) is opened to discharge the substances in the second support cylinder (4), after the valve on the liquid discharge pipeline (2) is closed, the feed inlet (8) and the through hole (7) are opened, the brush (17) sweeps the calcium oxide on the pad net (6) into the through hole (7), the calcium carbonate falls into the first support cylinder (1), and then water and carbon dioxide are added; S5, then, S1-S4 are repeated, and the desulfurization and adsorption purification treatment of the exhaust gas is continued.

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