Desulfurization equipment for biogas pretreatment device and desulfurization method

Abstract

The invention relates to the technical field of desulfurization equipment, and discloses desulfurization equipment for a biogas pretreatment device and a desulfurization method.The desulfurization equipment comprises a desulfurization mechanism, the desulfurization mechanism further comprises a base, the top of the base is fixedly connected with two supporting plates, the sides, close to each other, of the two supporting plates are rotationally connected with a main body, and the side wall of the main body is fixedly connected with a gas inlet cover; a driving motor is started, the driving motor drives a bidirectional threaded rod to rotate, the bidirectional threaded rod rotates to drive two moving plates to get close to each other, and when the two moving plates get close to each other, the upper moving plate pulls the right side of a main body to move downwards through a first connecting strip, and the lower moving plate jacks up the left side of the main body through a second connecting strip; in this way, the main body can rotate with the supporting plate as the midpoint, the angle of the main body is inclined, after the main body is inclined, zinc oxide poured into the desulfurization cavity is pushed and squeezed between the baffle net located on the right side and the filter plate, and therefore the zinc oxide can form a compact filter layer in the desulfurization cavity.

Description

Technical Field

[0001] The invention relates to the technical field of desulfurization equipment, in particular to a desulfurization equipment and a desulfurization method for a biogas pretreatment device. Background Art

[0002] Biogas usually contains sulfides such as hydrogen sulfide, which not only have a pungent smell, but are also corrosive to equipment and pipelines. Biogas that has not been desulfurized will produce harmful gases such as sulfur dioxide when burned, causing environmental pollution. Biogas that has been desulfurized burns more cleanly and reduces pollution to the atmospheric environment. Zinc oxide reacts with hydrogen sulfide in biogas to generate zinc sulfide and water, thereby effectively removing hydrogen sulfide from biogas. This reaction is a typical chemical adsorption and chemical reaction process, which can fix hydrogen sulfide in zinc sulfide to achieve the purpose of desulfurization.

[0003] As the desulfurization reaction proceeds, zinc oxide is gradually converted into zinc sulfide. If the formed zinc sulfide particles are not discharged in time, they may accumulate in the desulfurization equipment, causing blockage of the internal channels of the equipment and increasing the resistance to the flow of biogas, thereby reducing the desulfurization efficiency of the desulfurization equipment. In response to the above problems, the following solutions are proposed. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a desulfurization device for a biogas pretreatment device, comprising a desulfurization mechanism, the desulfurization mechanism also comprising a base, the top of the base is fixedly connected with two support plates, the two support plates are rotatably connected with a main body on one side close to each other, and an air intake hood is fixedly connected to the side wall of the main body; The cleaning mechanism has a desulfurization chamber in the main body, two baffles are fixedly connected to the top of the desulfurization chamber, and two filter plates are fixedly connected to the top of the desulfurization chamber; The discharging mechanism comprises arc tubes fixedly connected to the sides of the two support plates close to each other, and push plates slidably connected to the inner walls of the two arc tubes.

[0005] Preferably, the desulfurization mechanism also includes a driving motor fixedly connected to the top of the base, the top of the base is fixedly connected to a fixing frame, the top of the fixing frame is rotatably connected to a two-way threaded rod, the two-way threaded rod penetrates the fixing frame and is fixedly connected to the output shaft of the driving motor, two moving plates are threadedly connected on the outer wall of the two-way threaded rod, the top and bottom of the fixing frame are respectively fixedly connected to a stabilizing rod, a plurality of stabilizing rods penetrate the two moving plates respectively and are slidably connected to the two moving plates respectively, the driving motor is started, the driving motor drives the two-way threaded rod to rotate, and the two-way threaded rod drives the two moving plates to approach each other after rotation, when the two moving plates approach each other, the moving plate located above pulls the right side of the main body downward through the connecting strip 1, and the moving plate located below pushes the left side of the main body upward through the connecting strip 2, so that the main body can rotate with the support plate as the midpoint, so that the angle of the main body is tilted, and after the main body is tilted, the zinc oxide poured into the desulfurization chamber is pushed between the baffle and the filter plate on the right side, so that the zinc oxide can form a relatively tight filter layer in the desulfurization chamber.

[0006] Preferably, the desulfurization mechanism also includes two fixed plates fixedly connected to the bottom of the main body, the side walls of the two fixed plates are respectively provided with slide grooves, and movable rods are slidably connected in the two slide grooves respectively, and a connecting strip 1 is rotatably connected to the side wall of the movable plate located at the upper side, and the side of the connecting strip 1 away from the movable plate is fixedly connected to the corresponding movable rod, and a connecting strip 2 is rotatably connected to the side wall of the movable plate located at the lower side, and the side of the connecting strip 2 away from the movable plate is fixedly connected to the corresponding movable rod. After zinc oxide accumulates between the baffle and the filter plate, the valve of the biogas inlet pipe is opened, and the biogas enters the desulfurization chamber through the discharge chute. The biogas entering the desulfurization chamber contacts with zinc oxide, and the zinc oxide reacts with hydrogen sulfide in the biogas to form zinc sulfide, thereby effectively The hydrogen sulfide in the biogas is removed efficiently. When too much zinc sulfide is formed between the baffle and the filter plate, the drive motor is started again. The drive motor drives the two-way threaded rod to rotate. After the two-way threaded rod rotates, it drives the two moving plates to move away from each other. After the two moving plates move away from each other, it drives the main body to rotate counterclockwise, forcing the zinc oxide in the desulfurization chamber to pass through the filter plate on the right and enter between the filter plate and the baffle on the left. If the formed zinc sulfide particles are larger than the filter holes of the filter plate, they will remain between the baffle and the filter plate on the right, so that the formed zinc sulfide can be separated from the zinc oxide, and the reacted zinc sulfide can be separated from the fresh zinc oxide, ensuring that the biogas newly entering the desulfurization chamber can contact with the fresh zinc oxide, and continuously maintain a high-efficiency desulfurization effect.

[0007] Preferably, the cleaning mechanism also includes two discharge troughs provided on the side wall of the desulfurization chamber, a plurality of support blocks are fixedly connected to the right side of the main body, a baffle is rotatably connected to the side wall of the support block, a limit rod is slidably connected to the side wall of the support block, a pulling block is fixedly connected to the end of the limit rod away from the support block, a reset spring is fixedly connected to the side of the pull block and the support block that are close to each other, when the zinc sulfide on the top of the rotating plate is collected at the discharge trough, the staff pulls the pulling block, and the pulling block drives the limit rod to move outward, so that the limit rod no longer blocks the baffle, and when the pulling block is pulled, the reset spring is subjected to a tensile force, and at the same time, the baffle is no longer blocked and is also subjected to a tensile force. The inclination of the rotating plate causes the zinc sulfide collected at the discharge trough to exert an extrusion force on the baffle, forcing the baffle to rotate with the support block as the midpoint. At this time, a gap appears between the baffle and the discharge trough, and the formed zinc sulfide is discharged from the gap. Under normal circumstances, the limit rod blocks the baffle to prevent accidental discharge of zinc sulfide. Only when the staff intends to perform the discharge operation will they pull the pull block to release the blockage. By releasing the blockage of the baffle and discharging the zinc sulfide, more reaction space can be provided for fresh zinc oxide, ensuring that the zinc oxide always maintains a high activity, thereby continuously and effectively removing hydrogen sulfide from biogas and maintaining a stable desulfurization efficiency.

[0008] Preferably, the cleaning mechanism also includes two movable grooves opened at the bottom of the main body, the inner walls of the two movable grooves are respectively rotatably connected with rotating plates, the inner walls of the two movable grooves are respectively fixedly connected with limiting strips, the bottom of the main body is fixedly connected with two piston cylinders, the inner walls of the piston cylinders are slidably connected with piston rods, the top of the piston rod is slidably connected to the bottom of the rotating plate, the gas entering the piston cylinder will squeeze the piston rod to move upward, and the piston rod will force the rotating plate to rotate after moving upward. The zinc sulfide separated by the filter plate is at the top of the rotating plate. After the rotating plate rotates, the rotating plate is tilted, so that the zinc sulfide on the top of the rotating plate slides toward the discharge trough, which makes it easy to collect and process the separated zinc sulfide in a unified manner. Collecting zinc sulfide can reduce the accumulation of zinc sulfide in the equipment and reduce its interference with the desulfurization process. The presence of zinc sulfide may affect the flow of biogas and the reaction of zinc oxide and hydrogen sulfide. By removing zinc sulfide in time, the stable operation of the desulfurization system can be maintained, and the stability and reliability of the desulfurization effect can be improved.

[0009] Preferably, the cleaning mechanism also includes a rotating shaft fixedly connected to the side wall of the main body, the rotating shaft passes through the support plate and is rotatably connected to the support plate, a mounting block is fixedly connected to the side wall of the support plate, two air storage bags are fixedly connected to the bottom of the mounting block, two pressure plates are fixedly connected to the outer wall of the rotating shaft, an air supply pipe is fixedly connected to the bottom of the piston cylinder, and the end of the air supply pipe away from the piston cylinder is fixedly connected to the air storage bag, when the driving motor drives the main body to rotate, the main body can drive the rotating shaft to rotate when it rotates, and the rotating shaft can drive the pressure plate to squeeze the air storage bag when it rotates, and after the air storage bag is squeezed, the gas in the air storage bag enters the piston cylinder through the air supply pipe.

[0010] Preferably, the discharging mechanism also includes an arc-shaped rod fixedly connected to the side wall of the push plate, the end of the arc-shaped rod away from the push plate is fixedly connected to a rectangular block, the side wall of the rectangular block is fixedly connected to the main body, the top of the arc-shaped tube is fixedly connected to a blowing pipe, the end of the blowing pipe away from the arc-shaped tube extends into the desulfurization chamber, and when the rotating plate rotates to make the zinc sulfide formed on the top of the rotating plate tilt, part of the zinc sulfide cannot remain on the top of the rotating plate and cannot be discharged, and when the main body rotates, it will drive the arc-shaped rod to move synchronously, and the arc-shaped rod will drive the push plate in the arc shape when moving. The tube slides inside, which will squeeze the gas inside the arc tube, so that the gas in the arc tube is blown into the desulfurization chamber through the blowing pipe. The gas blown into the desulfurization chamber will blow some of the zinc sulfide remaining on the top of the rotating plate to the discharge chute. In this way, when cleaning the formed zinc sulfide, the formed zinc sulfide can be discharged more thoroughly, ensuring that the zinc sulfide on the top of the rotating plate is discharged as thoroughly as possible, which improves the discharge efficiency of zinc sulfide, reduces the influence of residual zinc sulfide on the subsequent desulfurization process, optimizes the desulfurization process, and improves the quality of biogas.

[0011] A desulfurization method for a desulfurization device for a biogas pretreatment device comprises the following steps: S1: Start the driving motor to drive the bidirectional threaded rod to rotate. After the bidirectional threaded rod rotates, it drives the two moving plates to approach each other. When the two moving plates approach each other, the moving plate located on the upper side pulls the right side of the main body to move downward through the connecting bar. S2: When the driving motor drives the main body to rotate, the main body can drive the rotating shaft to rotate, and the rotating shaft can drive the pressing plate to squeeze the air storage bag. After the air storage bag is squeezed, the gas in the air storage bag enters the piston cylinder through the air delivery pipe; S3: When the zinc sulfide on the top of the rotating plate is collected at the discharge trough, the staff pulls the pull block, which drives the limit rod to move outward so that the limit rod no longer blocks the baffle. When the pull block is pulled, the reset spring is subjected to a tensile force; S4: When the rotating plate rotates and the zinc sulfide formed on the top of the rotating plate is tilted, some zinc sulfide cannot remain on the top of the rotating plate and cannot be discharged. When the main body rotates, the arc rod will move synchronously. When the arc rod moves, it drives the push plate to slide inside the arc tube, which will squeeze the gas inside the arc tube.

[0012] The present invention has the following beneficial effects: When the biogas needs to be desulfurized, the biogas intake pipe is firstly flange-connected with the intake hood, and then zinc oxide is poured into the desulfurization chamber, and then the driving motor is started, and the driving motor drives the two-way threaded rod to rotate, and the two-way threaded rod drives the two movable plates to approach each other after rotation, and when the two movable plates approach each other, the movable plate located on the upper side pulls the right side of the main body downward through the connecting strip 1, and the movable plate located on the lower side pushes the left side of the main body upward through the connecting strip 2, so that the main body can rotate with the support plate as the midpoint, so that the angle of the main body is tilted, and after the main body is tilted, the zinc oxide poured into the desulfurization chamber is pushed between the baffle screen and the filter plate on the right side, so that the zinc oxide can form a relatively tight filter layer in the desulfurization chamber, and after the zinc oxide is accumulated between the baffle screen and the filter plate, the valve of the biogas intake pipe is opened, and now the biogas enters the desulfurization chamber through the discharge chute. In the sulfur chamber, the biogas entering the desulfurization chamber contacts with zinc oxide, and the zinc oxide reacts with the hydrogen sulfide in the biogas to form zinc sulfide, thereby effectively removing the hydrogen sulfide in the biogas. When too much zinc sulfide is formed between the baffle and the filter plate, the drive motor is started again, and the drive motor drives the bidirectional threaded rod to rotate. After the bidirectional threaded rod rotates, it drives the two moving plates to move away from each other. After the two moving plates move away from each other, it drives the main body to rotate counterclockwise, forcing the zinc oxide in the desulfurization chamber to pass through the filter plate on the right and enter between the filter plate and the baffle on the left. If the formed zinc sulfide particles are larger than the filter holes of the filter plate, they will remain between the baffle and the filter plate on the right, so that the formed zinc sulfide can be separated from the zinc oxide, and the reacted zinc sulfide can be separated from the fresh zinc oxide, ensuring that the biogas newly entering the desulfurization chamber can contact with the fresh zinc oxide and continuously maintain an efficient desulfurization effect.

[0013] When the driving motor of the present invention drives the main body to rotate, the main body can drive the rotating shaft to rotate during the rotation, and the rotating shaft can drive the pressure plate to squeeze the air storage bag. After the air storage bag is squeezed, the gas in the air storage bag enters the piston cylinder through the air pipe, and the gas entering the piston cylinder will squeeze the piston rod to move upward. After the piston rod moves upward, it will force the rotating plate to rotate. The zinc sulfide separated by the filter plate is on the top of the rotating plate. After the rotating plate rotates, the rotating plate is tilted, so that the zinc sulfide on the top of the rotating plate slides toward the discharge trough, which makes it easy to collect and process the separated zinc sulfide in a unified manner. Collecting zinc sulfide can reduce the accumulation of zinc sulfide in the equipment and reduce its interference with the desulfurization process. The presence of zinc sulfide may affect the flow of biogas and the reaction of zinc oxide and hydrogen sulfide. By removing zinc sulfide in time, the stable operation of the desulfurization system can be maintained, and the stability and reliability of the desulfurization effect can be improved.

[0014] When the zinc sulfide on the top of the rotating plate of the present invention is collected at the discharge chute, the staff pulls the pull block, and the pull block drives the limit rod to move outward, so that the limit rod no longer blocks the baffle. When the pull block is pulled, the reset spring is subjected to a tensile force. At the same time, the baffle is no longer blocked and is tilted by the rotating plate, so that the zinc sulfide collected at the discharge chute exerts an extrusion force on the baffle, forcing the baffle to rotate with the support block as the midpoint. At this time, a gap appears between the baffle and the discharge chute, and the formed zinc sulfide is discharged from the gap. Under normal circumstances, the limit rod blocks the baffle to prevent zinc sulfide from being accidentally discharged. Only when the staff intentionally performs the discharge operation will the pull block be pulled to release the block. By releasing the blockage of the baffle and discharging the zinc sulfide, more reaction space can be provided for fresh zinc oxide, ensuring that the zinc oxide always maintains a high activity, thereby continuously and effectively removing hydrogen sulfide in biogas and maintaining a stable desulfurization efficiency.

[0015] When the rotating plate of the present invention rotates and the zinc sulfide formed on the top of the rotating plate is tilted, part of the zinc sulfide cannot remain on the top of the rotating plate and cannot be discharged. When the main body rotates, the arc rod is driven to move synchronously. When the arc rod moves, it drives the push plate to slide inside the arc tube, which squeezes the gas inside the arc tube, so that the gas in the arc tube is blown into the desulfurization chamber through the blowing pipe. The gas blown into the desulfurization chamber will blow part of the zinc sulfide remaining on the top of the rotating plate toward the discharge chute. In this way, when cleaning the formed zinc sulfide, the formed zinc sulfide can be discharged more thoroughly, ensuring that the zinc sulfide on the top of the rotating plate is discharged as thoroughly as possible. This improves the discharge efficiency of the zinc sulfide, reduces the influence of the residual zinc sulfide on the subsequent desulfurization process, optimizes the desulfurization process, and improves the quality of biogas. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0017] Figure 1 It is a cross-sectional schematic diagram of the internal components in the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall structure of the present invention; Figure 3 For the present invention Figure 2 A is an enlarged schematic diagram; Figure 4 This is a schematic diagram of the desulfurization mechanism of the present invention; Figure 5 It is a partial structural cross-sectional schematic diagram of the cleaning mechanism of the present invention; Figure 6 It is a cross-sectional schematic diagram of the cleaning mechanism of the present invention; Figure 7 For the present invention Figure 6 A magnified schematic diagram of B; Figure 8 It is a schematic diagram of some components of the discharging mechanism of the present invention; Fig. 9 It is a side schematic diagram of the discharging mechanism of the present invention; Fig.10 It is a schematic diagram of the working process of the present invention.

[0018] In the accompanying drawings, the components represented by the reference numerals are listed as follows: In the figure: 1. desulfurization mechanism; 101. base; 102. support plate; 103. main body; 104. air intake cover; 105. drive motor; 106. fixed frame; 107. two-way threaded rod; 108. moving plate; 18. stabilizing rod; 109. fixed plate; 110. slideway; 111. movable rod; 112. connecting strip 1; 113. connecting strip 2; 2. cleaning mechanism; 201. desulfurization chamber; 202. baffle; 203. filter plate; 204. discharge trough; 20 5. Support block; 206. Baffle; 207. Limit rod; 208. Pull block; 209. Return spring; 210. Movable groove; 211. Rotating plate; 212. Limit strip; 213. Piston cylinder; 214. Piston rod; 215. Rotating shaft; 216. Mounting block; 217. Air storage bag; 218. Press plate; 219. Air pipe; 3. Discharging mechanism; 301. Arc tube; 302. Push plate; 303. Arc rod; 304. Rectangular block; 305. Air blowing pipe. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] For example, see Figure 1 - Figure 3 The present invention is a desulfurization device for a biogas pretreatment device, comprising a desulfurization mechanism 1, the desulfurization mechanism 1 also comprising a base 101, the top of the base 101 is fixedly connected with two support plates 102, the two support plates 102 are rotatably connected with a main body 103 on one side close to each other, and an air intake hood 104 is fixedly connected to the side wall of the main body 103; The cleaning mechanism 2 has a desulfurization chamber 201 in the main body 103, two baffles 202 are fixedly connected to the top of the desulfurization chamber 201, and two filter plates 203 are fixedly connected to the top of the desulfurization chamber 201; The discharging mechanism 3 has two support plates 102 that are close to each other and are fixedly connected to arc tubes 301 , and push plates 302 are slidably connected to the inner walls of the two arc tubes 301 .

[0021] The desulfurization mechanism 1 also includes a driving motor 105 fixedly connected to the top of the base 101, a fixing frame 106 is fixedly connected to the top of the base 101, a bidirectional threaded rod 107 is rotatably connected to the top of the fixing frame 106, the bidirectional threaded rod 107 penetrates the fixing frame 106 and is fixedly connected to the output shaft of the driving motor 105, two moving plates 108 are threadedly connected to the outer wall of the bidirectional threaded rod 107, the top and bottom of the fixing frame 106 are respectively fixedly connected to the stabilizing rod 18, a plurality of stabilizing rods 18 penetrate the two moving plates 108 and are respectively slidably connected to the two moving plates 108, the driving motor 105 is started, and the driving motor 105 drives the bidirectional threaded rod 107 to rotate After the two-way threaded rod 107 rotates, it drives the two movable plates 108 to approach each other. When the two movable plates 108 approach each other, the movable plate 108 located on the top pulls the right side of the main body 103 downward through the connecting strip 112, and the movable plate 108 located on the bottom pushes the left side of the main body 103 upward through the connecting strip 2 113, so that the main body 103 can rotate with the support plate 102 as the midpoint, so that the angle of the main body 103 is tilted. After the main body 103 is tilted, the zinc oxide poured into the desulfurization chamber 201 is pushed between the baffle 202 and the filter plate 203 located on the right side, so that the zinc oxide can form a relatively tight filtration layer in the desulfurization chamber 201.

[0022] The desulfurization mechanism 1 also includes two fixed plates 109 fixedly connected to the bottom of the main body 103, and the side walls of the two fixed plates 109 are respectively provided with slide grooves 110, and the two slide grooves 110 are respectively slidably connected with movable rods 111, and the side wall of the movable plate 108 located at the top is rotatably connected with a connecting strip 112, and the side of the connecting strip 112 away from the movable plate 108 is fixedly connected to the corresponding movable rod 111, and the side wall of the movable plate 108 located at the bottom is rotatably connected with a connecting strip 2 113, and the side of the connecting strip 2 113 away from the movable plate 108 is fixedly connected to the corresponding movable rod 111. After zinc oxide accumulates between the baffle 202 and the filter plate 203, the valve of the biogas inlet pipe is opened, and the biogas enters the desulfurization chamber 201 through the discharge trough 204. The biogas entering the desulfurization chamber 201 contacts with zinc oxide, and the zinc oxide reacts with hydrogen sulfide in the biogas to form sulfide. Zinc, thereby effectively removing hydrogen sulfide in the biogas. When too much zinc sulfide is formed between the baffle 202 and the filter plate 203, the drive motor 105 is started again. The drive motor 105 drives the bidirectional threaded rod 107 to rotate. After the bidirectional threaded rod 107 rotates, it drives the two movable plates 108 to move away from each other. After the two movable plates 108 move away from each other, they drive the main body 103 to rotate counterclockwise, forcing the zinc oxide in the desulfurization chamber 201 to pass through the filter plate 203 on the right and enter between the filter plate 203 and the baffle 202 on the left. If the formed zinc sulfide particles are larger than the filter holes of the filter plate 203, they will remain between the baffle 202 and the filter plate 203 on the right, so that the formed zinc sulfide can be separated from the zinc oxide, and the reacted zinc sulfide can be separated from the fresh zinc oxide, ensuring that the biogas newly entering the desulfurization chamber can contact with the fresh zinc oxide, and continuously maintaining an efficient desulfurization effect.

[0023] For example 2, please refer to Figure 4 - Figure 8The present invention is a desulfurization device for a biogas pretreatment device. On the basis of Example 1, the cleaning mechanism 2 also includes two discharge troughs 204 opened on the side wall of the desulfurization chamber 201. A plurality of support blocks 205 are fixedly connected to the right side of the main body 103. A baffle 206 is rotatably connected to the side wall of the support block 205. A limiting rod 207 is slidably connected to the side wall of the support block 205. A pull block 208 is fixedly connected to the end of the limiting rod 207 away from the support block 205. A reset spring 209 is fixedly connected to the side of the pull block 208 and the support block 205 that are close to each other. When the zinc sulfide on the top of the rotating plate 211 is collected at the discharge trough 204, the staff pulls the pull block 208, and the pull block 208 drives the limiting rod 207 to move outward, so that the limiting rod 207 no longer blocks the baffle 206, and pulls the pull block At 208, the return spring 209 is subjected to a tensile force. At the same time, the baffle 206 is no longer blocked and is tilted by the rotating plate 211, so that the zinc sulfide collected at the discharge trough 204 exerts an extrusion force on the baffle 206, forcing the baffle 206 to rotate with the support block 205 as the midpoint. At this time, a gap appears between the baffle 206 and the discharge trough 204, and the formed zinc sulfide is discharged from the gap. Under normal circumstances, the limit rod blocks the baffle to prevent accidental discharge of zinc sulfide. Only when the staff intends to perform the discharge operation will the pull block be pulled to release the blockage. By releasing the blockage of the baffle 206 and discharging the zinc sulfide, more reaction space can be provided for fresh zinc oxide, ensuring that the zinc oxide always maintains a high activity, thereby continuously and effectively removing hydrogen sulfide in the biogas and maintaining a stable desulfurization efficiency.

[0024] The cleaning mechanism 2 also includes two movable grooves 210 opened at the bottom of the main body 103, and the inner walls of the two movable grooves 210 are respectively rotatably connected with a rotating plate 211, and the inner walls of the two movable grooves 210 are respectively fixedly connected with a limit strip 212. The bottom of the main body 103 is fixedly connected with two piston cylinders 213, and the inner wall of the piston cylinder 213 is slidably connected with a piston rod 214. The top of the piston rod 214 is slidably connected with the bottom of the rotating plate 211. The gas entering the piston cylinder 213 will squeeze the piston rod 214 to move upward, and the piston rod 214 will force the rotating plate 211 to rotate after moving upward. The zinc sulfide separated by the filter plate 203 is on the top of the rotating plate 211. After the rotating plate 211 rotates, the rotating plate 211 is tilted, so that the zinc sulfide on the top of the rotating plate 211 slides toward the discharge trough 204, which makes it easy to collect and process the separated zinc sulfide. Collecting zinc sulfide can reduce the accumulation of zinc sulfide in the equipment and reduce its interference with the desulfurization process. The presence of zinc sulfide may affect the flow of biogas and the reaction between zinc oxide and hydrogen sulfide. By removing zinc sulfide in time, the stable operation of the desulfurization system can be maintained, and the stability and reliability of the desulfurization effect can be improved.

[0025] The cleaning mechanism 2 also includes a rotating shaft 215 fixedly connected to the side wall of the main body 103, the rotating shaft 215 passes through the support plate 102 and is rotatably connected to the support plate 102, a mounting block 216 is fixedly connected to the side wall of the support plate 102, two air storage bags 217 are fixedly connected to the bottom of the mounting block 216, two pressing plates 218 are fixedly connected to the outer wall of the rotating shaft 215, an air supply pipe 219 is fixedly connected to the bottom of the piston cylinder 213, and one end of the air supply pipe 219 away from the piston cylinder 213 is fixedly connected to the air storage bag 217. When the driving motor 105 drives the main body 103 to rotate, the main body 103 can drive the rotating shaft 215 to rotate when rotating, and the rotating shaft 215 can drive the pressing plate 218 to squeeze the air storage bag 217 when rotating. After the air storage bag 217 is squeezed, the gas in the air storage bag 217 enters the piston cylinder 213 through the air supply pipe 219.

[0026] The discharging mechanism 3 also includes an arc rod 303 fixedly connected to the side wall of the push plate 302, and the end of the arc rod 303 away from the push plate 302 is fixedly connected to a rectangular block 304, and the side wall of the rectangular block 304 is fixedly connected to the main body 103. The top of the arc tube 301 is fixedly connected to a blowing pipe 305, and the end of the blowing pipe 305 away from the arc tube 301 extends into the desulfurization chamber 201. When the rotating plate 211 rotates to make the zinc sulfide formed on the top of the rotating plate 211 tilt, some zinc sulfide will not remain on the top of the rotating plate 211 and cannot be discharged. When the main body 103 rotates, it will drive the arc rod 303 to move synchronously, and the arc rod 303 When moving, the push plate 302 is driven to slide inside the arc tube 301, which will squeeze the gas inside the arc tube 301, so that the gas in the arc tube 301 is blown into the desulfurization chamber 201 through the blowing pipe 305. The gas blown into the desulfurization chamber 201 will blow part of the zinc sulfide remaining on the top of the rotating plate 211 to the discharge trough 204, so that when cleaning the formed zinc sulfide, the formed zinc sulfide can be discharged more thoroughly, ensuring that the zinc sulfide on the top of the rotating plate 211 is discharged as thoroughly as possible, which improves the discharge efficiency of zinc sulfide, reduces the influence of residual zinc sulfide on the subsequent desulfurization process, optimizes the desulfurization process, and improves the quality of biogas.

[0027] The desulfurization method of the desulfurization equipment includes the following steps: S1: Start the driving motor 105 to drive the bidirectional threaded rod 107 to rotate. After the bidirectional threaded rod 107 rotates, it drives the two moving plates 108 to move closer to each other. When the two moving plates 108 move closer to each other, the moving plate 108 located on the upper side pulls the right side of the main body 103 to move downward through the connecting strip 112; S2: When the driving motor 105 drives the main body 103 to rotate, the main body 103 can drive the rotating shaft 215 to rotate, and the rotating shaft 215 can drive the pressing plate 218 to squeeze the air storage bag 217. After the air storage bag 217 is squeezed, the gas in the air storage bag 217 enters the piston cylinder 213 through the air delivery pipe 219; S3: When the zinc sulfide on the top of the rotating plate 211 is collected at the discharge trough 204, the staff pulls the pull block 208, and the pull block 208 drives the limit rod 207 to move outward, so that the limit rod 207 no longer blocks the baffle 206. When the pull block 208 is pulled, the return spring 209 is subjected to a tensile force; S4: When the rotating plate 211 rotates and the zinc sulfide formed on the top of the rotating plate 211 is tilted, some zinc sulfide cannot remain on the top of the rotating plate 211 and cannot be completely discharged. When the main body 103 rotates, it will drive the arc rod 303 to move synchronously. When the arc rod 303 moves, it drives the push plate 302 to slide inside the arc tube 301, which will squeeze the gas inside the arc tube 301.

[0028] A specific application of this embodiment is: When the biogas needs to be desulfurized, the biogas intake pipe is firstly connected with the intake cover 104 by flange connection, and then zinc oxide is poured into the desulfurization chamber 201, and then the driving motor 105 is started, and the driving motor 105 drives the bidirectional threaded rod 107 to rotate, and the bidirectional threaded rod 107 rotates and drives the two moving plates 108 to approach each other. When the two moving plates 108 approach each other, the moving plate 108 located on the upper side pulls the right side of the main body 103 to move downward through the connecting strip 112, and the moving plate 108 located on the lower side moves downward. 8 The left side of the main body 103 is lifted upward by connecting strip 113, so that the main body 103 can rotate with the support plate 102 as the midpoint, so that the angle of the main body 103 is tilted. After the main body 103 is tilted, the zinc oxide poured into the desulfurization chamber 201 is pushed between the baffle 202 and the filter plate 203 on the right side, so that the zinc oxide can form a relatively tight filter layer in the desulfurization chamber 201. After the zinc oxide is accumulated between the baffle 202 and the filter plate 203, the valve of the biogas inlet pipe is opened, and the biogas passes through The discharge chute 204 enters the desulfurization chamber 201, and the biogas entering the desulfurization chamber 201 contacts with zinc oxide, and the zinc oxide reacts with the hydrogen sulfide in the biogas to form zinc sulfide, thereby effectively removing the hydrogen sulfide in the biogas. When too much zinc sulfide is formed between the baffle 202 and the filter plate 203, the drive motor 105 is started again, and the drive motor 105 drives the bidirectional threaded rod 107 to rotate. After the bidirectional threaded rod 107 rotates, it drives the two moving plates 108 to move away from each other. After the two moving plates 108 move away from each other, the main body is driven. 103 rotates counterclockwise, forcing the zinc oxide in the desulfurization chamber 201 to pass through the filter plate 203 on the right and enter between the filter plate 203 on the left and the baffle 202. The formed zinc sulfide particles are larger than the filter holes of the filter plate 203 and will remain between the baffle 202 and the filter plate 203 on the right, so that the formed zinc sulfide can be separated from the zinc oxide, and the reacted zinc sulfide can be separated from the fresh zinc oxide, ensuring that the biogas newly entering the desulfurization chamber can contact with the fresh zinc oxide, thereby continuously maintaining an efficient desulfurization effect.

[0029] When the driving motor 105 drives the main body 103 to rotate, the main body 103 can drive the rotating shaft 215 to rotate when rotating, and the rotating shaft 215 can drive the pressing plate 218 to squeeze the air storage bag 217 when rotating. After the air storage bag 217 is squeezed, the gas in the air storage bag 217 enters the piston cylinder 213 through the gas pipe 219, and the gas entering the piston cylinder 213 squeezes the piston rod 214 to move upward. After the piston rod 214 moves upward, it forces the rotating plate 211 to rotate, and the zinc sulfide separated by the filter plate 203 rotates. The top of the plate 211, after the rotating plate 211 rotates, the rotating plate 211 is tilted, so that the zinc sulfide on the top of the rotating plate 211 slides toward the discharge trough 204, which makes it easy to collect and process the separated zinc sulfide. Collecting zinc sulfide can reduce the accumulation of zinc sulfide in the equipment and reduce its interference with the desulfurization process. The presence of zinc sulfide may affect the flow of biogas and the reaction of zinc oxide and hydrogen sulfide. By removing zinc sulfide in time, the stable operation of the desulfurization system can be maintained, and the stability and reliability of the desulfurization effect can be improved.

[0030] When the zinc sulfide on the top of the rotating plate 211 is collected at the discharge trough 204, the staff pulls the pull block 208, and the pull block 208 drives the limit rod 207 to move outward, so that the limit rod 207 no longer blocks the baffle 206. When the pull block 208 is pulled, the return spring 209 is subjected to a tensile force. At the same time, the baffle 206 is no longer blocked and is tilted by the rotating plate 211, so that the zinc sulfide collected at the discharge trough 204 exerts an extrusion force on the baffle 206, forcing the baffle 206 to rotate with the support block 205 as the midpoint. When the baffle 206 moves, a gap appears between the baffle 206 and the discharge chute 204, and the formed zinc sulfide is discharged from the gap. Under normal circumstances, the limit rod blocks the baffle to prevent the zinc sulfide from being accidentally discharged. Only when the staff intends to perform the discharge operation will the pull block be pulled to release the blockage. By releasing the blockage of the baffle 206 and discharging the zinc sulfide, more reaction space can be provided for fresh zinc oxide, ensuring that the zinc oxide always maintains a high activity, thereby continuously and effectively removing hydrogen sulfide in the biogas and maintaining a stable desulfurization efficiency.

[0031] When the rotating plate 211 rotates and the zinc sulfide formed on the top of the rotating plate 211 is tilted, some of the zinc sulfide cannot remain on the top of the rotating plate 211 and cannot be discharged. When the main body 103 rotates, the arc rod 303 is driven to move synchronously. When the arc rod 303 moves, it drives the push plate 302 to slide inside the arc tube 301, which squeezes the gas inside the arc tube 301, so that the gas in the arc tube 301 is blown into the desulfurization chamber 201 through the blowing pipe 305. The gas blown into the desulfurization chamber 201 will blow some of the zinc sulfide remaining on the top of the rotating plate 211 to the discharge trough 204. In this way, when cleaning the formed zinc sulfide, the formed zinc sulfide can be discharged more thoroughly, ensuring that the zinc sulfide on the top of the rotating plate 211 is discharged as thoroughly as possible. This improves the discharge efficiency of zinc sulfide, reduces the influence of residual zinc sulfide on the subsequent desulfurization process, optimizes the desulfurization process, and improves the quality of biogas.

[0032] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A desulfurization device for a biogas pretreatment device, comprising a desulfurization mechanism (1), the desulfurization mechanism (1) further comprising a base (101), the top of the base (101) being fixedly connected to two support plates (102), a main body (103) being rotatably connected to the side of the two support plates (102) close to each other, an air intake hood (104) being fixedly connected to the side wall of the main body (103), characterized in that: Also includes: A cleaning mechanism (2), wherein a desulfurization chamber (201) is provided in the main body (103), two retaining nets (202) are fixedly connected to the top of the desulfurization chamber (201), and two filter plates (203) are fixedly connected to the top of the desulfurization chamber (201); The material discharging mechanism (3) comprises arc-shaped tubes (301) fixedly connected to the sides of the two support plates (102) close to each other, and push plates (302) slidably connected to the inner walls of the two arc-shaped tubes (301).

2. The desulfurization equipment for a biogas pretreatment device according to claim 1, characterized in that: The desulfurization mechanism (1) also includes a driving motor (105) fixedly connected to the top of the base (101); a fixing frame (106) is fixedly connected to the top of the base (101); a bidirectional threaded rod (107) is rotatably connected to the top of the fixing frame (106); the bidirectional threaded rod (107) passes through the fixing frame (106) and is fixedly connected to the output shaft of the driving motor (105); two moving plates (108) are threadedly connected to the outer wall of the bidirectional threaded rod (107); the top and bottom of the fixing frame (106) are respectively fixedly connected to stabilizing rods (18); a plurality of stabilizing rods (18) respectively pass through the two moving plates (108) and are respectively slidably connected to the two moving plates (108).

3. The desulfurization equipment for a biogas pretreatment device according to claim 2, characterized in that: The desulfurization mechanism (1) also includes two fixed plates (109) fixedly connected to the bottom of the main body (103), and the side walls of the two fixed plates (109) are respectively provided with sliding grooves (110), and movable rods (111) are respectively slidably connected in the two sliding grooves (110). A connecting strip 1 (112) is rotatably connected to the side wall of the movable plate (108) located above, and the side of the connecting strip 1 (112) away from the movable plate (108) is fixedly connected to the corresponding movable rod (111), and a connecting strip 2 (113) is rotatably connected to the side wall of the movable plate (108) located below, and the side of the connecting strip 2 (113) away from the movable plate (108) is fixedly connected to the corresponding movable rod (111).

4. The desulfurization equipment for a biogas pretreatment device according to claim 3, characterized in that: The cleaning mechanism (2) further comprises two discharge troughs (204) provided on the side wall of the desulfurization chamber (201); a plurality of support blocks (205) are fixedly connected to the right side of the main body (103); a baffle (206) is rotatably connected to the side where the plurality of support blocks (205) are close to each other; a limiting rod (207) is slidably connected to the side wall of the support block (205); a pulling block (208) is fixedly connected to one end of the limiting rod (207) away from the support block (205); and a return spring (209) is fixedly connected to the side where the pulling block (208) and the support block (205) are close to each other.

5. The desulfurization equipment for a biogas pretreatment device according to claim 4, characterized in that: The cleaning mechanism (2) further comprises two movable grooves (210) provided at the bottom of the main body (103), the inner walls of the two movable grooves (210) being rotatably connected to a rotating plate (211), the inner walls of the two movable grooves (210) being fixedly connected to a limiting strip (212), the bottom of the main body (103) being fixedly connected to two piston cylinders (213), the inner walls of the piston cylinders (213) being slidably connected to a piston rod (214), the top end of the piston rod (214) being slidably connected to the bottom of the rotating plate (211).

6. The desulfurization equipment for a biogas pretreatment device according to claim 5, characterized in that: The cleaning mechanism (2) further comprises a rotating shaft (215) fixedly connected to the side wall of the main body (103), the rotating shaft (215) passing through the support plate (102) and being rotatably connected to the support plate (102), a mounting block (216) fixedly connected to the side wall of the support plate (102), two air storage bags (217) fixedly connected to the bottom of the mounting block (216), two pressing plates (218) fixedly connected to the outer wall of the rotating shaft (215), an air supply pipe (219) fixedly connected to the bottom of the piston cylinder (213), and an end of the air supply pipe (219) away from the piston cylinder (213) fixedly connected to the air storage bag (217).

7. The desulfurization equipment for a biogas pretreatment device according to claim 6, characterized in that: The discharging mechanism (3) further comprises an arc-shaped rod (303) fixedly connected to the side wall of the push plate (302); one end of the arc-shaped rod (303) away from the push plate (302) is fixedly connected to a rectangular block (304); the side wall of the rectangular block (304) is fixedly connected to the main body (103); the top of the arc-shaped tube (301) is fixedly connected to an air blowing pipe (305); one end of the air blowing pipe (305) away from the arc-shaped tube (301) extends into the desulfurization chamber (201).

8. A desulfurization method for a desulfurization device for a biogas pretreatment device, using the biogas pretreatment desulfurization device as claimed in claim 7, characterized in that: The steps include: S1: starting the driving motor (105) to drive the bidirectional threaded rod (107) to rotate. After the bidirectional threaded rod (107) rotates, it drives the two movable plates (108) to approach each other. When the two movable plates (108) approach each other, the movable plate (108) located on the upper side pulls the right side of the main body (103) to move downward through the connecting strip 1 (112); S2: When the driving motor (105) drives the main body (103) to rotate, the main body (103) can drive the rotating shaft (215) to rotate, and the rotating shaft (215) can drive the pressing plate (218) to squeeze the air storage bag (217). After the air storage bag (217) is squeezed, the gas in the air storage bag (217) enters the piston cylinder (213) through the gas delivery pipe (219); S3: When the zinc sulfide on the top of the rotating plate (211) is collected at the discharge trough (204), the staff pulls the pull block (208), and the pull block (208) drives the limit rod (207) to move outward, so that the limit rod (207) no longer blocks the baffle (206). When the pull block (208) is pulled, the return spring (209) is subjected to a tensile force; S4: When the rotating plate (211) rotates and the zinc sulfide formed on the top of the rotating plate (211) is tilted, some of the zinc sulfide cannot remain on the top of the rotating plate (211) and cannot be completely discharged. When the main body (103) rotates, the arc rod (303) is driven to move synchronously. When the arc rod (303) moves, it drives the push plate (302) to slide inside the arc tube (301), which squeezes the gas inside the arc tube (301).

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