Automatic dosing device for coking desulfurization catalyst

Abstract

The present application relates to desulfurization equipment technical field, especially to a kind of coking desulfurization catalyst automatic dosing device, including vertically arranged dissolving tank, located in the middle of the inner wall of the dissolving tank filling ring and located in the inside of the filling ring power shaft, piston disc one and piston disc two are set on the power shaft. Through the present application, effectively solve the problem of uneven mixing of materials in traditional dosing device, the mutual cooperation of agitating structure and purging structure can make the particulate matter in material long time suspended in solution, so as to improve the uniformity of particulate matter distribution, improve stirring effect, facilitate the complete activation of catalyst, and by separating the inside of dissolving tank into multiple regions, continuous processing of materials can be realized, and it is ensured that there is always mixed material stored in the collection area, so as to continuously provide catalyst for desulfurization work, improve work efficiency and improve desulfurization work mode.

Description

Technical Field

[0001] This invention relates to the field of desulfurization equipment technology, and in particular to an automatic dosing device for coking desulfurization catalyst. Background Technology

[0002] In coking gas purification processes, HPF desulfurization is widely used due to its high efficiency and maturity. One of the core steps in this process is to add a catalyst to the desulfurization liquid to promote the oxidative removal of hydrogen sulfide. PDS (cobalt phthalocyanine sulfonate) catalyst, as a highly efficient desulfurization catalyst, has advantages such as high activity, large sulfur capacity, and fast reaction rate. It can significantly improve desulfurization efficiency and reduce operating costs. Currently, commercially available PDS catalysts are mainly divided into two forms: solid powder and liquid. Solid powder is widely used due to its better economic efficiency and stable desulfurization effect. However, during the addition process, it has problems such as easy agglomeration, insufficient dissolution, and easy sedimentation and caking. This often leads to blockage of the dosing pipeline, intermittent and uneven dosing, which in turn causes fluctuations in the composition of the desulfurization liquid and even causes production abnormalities such as roof collapse of the regeneration tank, seriously affecting the continuous and stable operation of the desulfurization system.

[0003] Traditional catalyst dosing devices involve adding a measured amount of solid powdered catalyst into a dissolving tank, mechanically stirring it to form a suspension, and then pumping it into the desulfurization system. This method has significant drawbacks: simple mechanical stirring is often insufficient, and the catalyst is not fully activated; each dosing requires stopping the machine to replenish the material, making it impossible to achieve a continuous supply of catalyst and affecting the continuity of desulfurization operations. Summary of the Invention

[0004] This invention provides an automatic dosing device for coking desulfurization catalysts, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] An automatic dosing device for coking desulfurization catalyst includes a vertically arranged dissolving tank, a filling ring located in the middle of the inner wall of the dissolving tank, and a power shaft located inside the filling ring. A piston disk one and a piston disk two are arranged on the power shaft. The piston disk one and the piston disk two divide the internal space of the dissolving tank into an upper storage area, a middle mixing area, and a lower collection area. The storage area is used to store unmixed materials, and the collection area is used to store mixed materials.

[0007] An agitation structure and a purging structure are provided between the first piston disk and the second piston disk.

[0008] Furthermore, the agitation structure includes a partition sleeved on the outside of the power shaft and a plurality of centrifugal plates located on the upper or lower side of the partition sleeve and fixed relative to the power shaft. The partition sleeve and the power shaft are connected by a plurality of spiral plates, and the spiral plates are used in conjunction with the centrifugal plates.

[0009] Furthermore, the centrifugal plate includes a main plate mounted on the power shaft and a secondary plate rotatably connected to the main plate via a connecting shaft, wherein the secondary plate is eccentrically disposed on the connecting shaft and the secondary plate is connected to the connecting shaft via an elastic body.

[0010] Furthermore, a ring mesh for receiving the materials to be mixed is provided between the first piston disc and the second piston disc.

[0011] Furthermore, the purging structure includes a gas guiding chamber formed by the filling ring and the dissolving tank. An air inlet pipe is provided on the dissolving tank, and a plurality of air dispersing pipes are provided on the filling ring. Both the air inlet pipe and the air dispersing pipes are connected to the gas guiding chamber. A plurality of air holes are provided on the air dispersing pipes to cooperate with the ring network.

[0012] Furthermore, the ring network is fixedly arranged opposite to the piston disk.

[0013] Furthermore, the piston disc two is hollow inside, and several air guide pipes communicating with the interior of the piston disc two are provided at the bottom of the piston disc two. The input end of the air guide pipe slides upward and is inserted into the air guide chamber. Several assembly bodies are provided at the top of the piston disc two, and several exhaust ports communicating with the interior of the piston disc two are opened on the assembly bodies.

[0014] Furthermore, the assembly body is movably mounted on the piston disc two, and an air guide groove communicating with the interior of the piston disc two is provided at the bottom of the assembly body, and the exhaust port communicates with the interior of the piston disc two through the air guide groove;

[0015] The adjacent assembled units are used in conjunction with each other through exhaust ports.

[0016] Furthermore, a partition ring is provided in the air guide chamber to divide the air guide chamber into an upper exhaust chamber and a lower air supply chamber. The air inlet pipe, the air diffuser pipe and the air guide pipe are all connected to the air supply chamber. A secondary pipe connected to the exhaust chamber is provided on the air inlet pipe.

[0017] A three-way pipe is provided on the dissolving tank. One input end of the three-way pipe is connected to the exhaust chamber, and the other input end of the three-way pipe is connected to the collection area.

[0018] Furthermore, the dosing device also includes a power unit for driving the power shaft to move. The power unit includes a motor and a cylinder mounted on the dissolving tank. The output end of the motor is provided with a transmission shaft. The transmission shaft slides relative to the power shaft and rotates synchronously. The movable end of the cylinder is rotatably connected to the power shaft through a connecting ring.

[0019] The technical solution of this invention can achieve the following technical effects:

[0020] It effectively solves the problem of uneven material mixing in traditional dosing devices. By combining the stirring and purging structures, the particulate matter in the material can be suspended in the solution for a long time, thereby improving the uniformity of particulate matter distribution and the stirring effect, which facilitates the complete activation of the catalyst. Moreover, by dividing the inside of the dissolving tank into multiple zones, continuous processing of materials can be achieved, and the collection zone can always store fully mixed materials, thus providing a continuous supply of catalyst for desulfurization, improving work efficiency, and improving the desulfurization working mode.

[0021] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of an automatic dosing device for coking desulfurization catalysts;

[0024] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure of the dissolving tank;

[0025] Figure 3 for Figure 1 A schematic diagram of the internal structure of the dissolving tank;

[0026] Figure 4 for Figure 3 Explosion structure diagram;

[0027] Figure 5 for Figure 4 A cross-sectional view of the filling ring.

[0028] Figure 6 for Figure 4 A schematic diagram of the piston disc and its upper structure;

[0029] Figure 7 for Figure 6 A schematic diagram of the cross-sectional structure;

[0030] Figure 8 for Figure 4 Schematic diagram of the structure of the second piston disc;

[0031] Figure 9 for Figure 8 A schematic diagram of the structure of the assembled unit;

[0032] Attached label: 100, dissolving vessel;

[0033] 200. Filler ring; 201. Air chamber; 202. Inlet pipe; 203. Discharge pipe;

[0034] 300. Drive shaft; 301. Piston disc one; 302. Piston disc two; 303. Air guide pipe; 304. Assembly body; 305. Air guide groove; 306. Exhaust port; 307. Spacer ring; 308. T-pipe; 309. Secondary pipe;

[0035] 400. Agitation structure; 401. Partition cylinder; 402. Centrifugal plate; 403. Spiral plate; 404. Main plate; 405. Secondary plate; 406. Connecting shaft; 407. Elastomer;

[0036] 500, ring network;

[0037] 600. Motor; 601. Cylinder; 602. Drive shaft; 603. Connecting ring. Detailed Implementation

[0038] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0040] like Figures 1 to 2As shown, this application provides an automatic dosing device for coking desulfurization catalyst, including a vertically arranged dissolving tank 100, a filling ring 200 located in the middle of the inner wall of the dissolving tank 100, and a power shaft 300 located inside the filling ring 200. A piston disk 301 and a piston disk 302 are arranged on the power shaft 300. The piston disk 301 and the piston disk 302 divide the internal space of the dissolving tank 100 into an upper storage area, a middle mixing area, and a lower collection area. The storage area is used to store unmixed materials, and the collection area is used to store mixed materials.

[0041] An agitation structure 400 and a purging structure are provided between piston disc 301 and piston disc 302.

[0042] Specifically, the storage zone, mixing zone, and collection zone inside the dissolving tank 100 are arranged vertically in sequence, allowing the material to fall naturally using gravity. When the dissolving tank 100 is horizontally positioned, and its three zones are arranged horizontally or in other directions, a conveying structure needs to be installed on the dissolving tank 100 to achieve the sequential conveying function between different zones. The filling ring 200 is located in the middle of the inner wall of the dissolving tank 100, and in its natural state, both piston disc 301 and piston disc 302 are located within the filling ring 200. This allows the internal space of the dissolving tank 100 to be divided. At the same time, due to the setting of the filling ring 200, neither piston disc 301 nor piston disc 302 can directly contact the inner wall of the dissolving tank 100. Therefore, when piston disc 301 and piston disc 302 are moved out of the filling ring 200, the gaps between piston disc 301 and the inner wall of the dissolving tank 100, and the gaps between piston disc 302 and the inner wall of the dissolving tank 100, allow materials to pass through. This achieves both the function of spatial division and the function of interconnection between adjacent areas.

[0043] The dissolving tank 100 is equipped with an inlet and a discharge pipe at the top and bottom, respectively. A valve structure can be installed on the discharge pipe to facilitate the control of the discharge speed and flow rate. Considering that the material itself has a certain degree of corrosiveness, the overall structure can be made of 316L stainless steel. To reduce the deposition of material on the piston disc 301, piston disc 302 and the end face of the filling ring 200, both the upper and lower end faces of the filling ring 200 can be set as slopes, and the upper surfaces of piston disc 301 and piston disc 302 can be set as cones to improve the smoothness of material flow. In addition, a scraper structure that works with piston disc 301 and piston disc 302 can be installed in the dissolving tank 100 to facilitate the removal of material on piston disc 301 and piston disc 302.

[0044] In use, the material to be mixed is added into the storage area above piston disc 301 through the feed inlet at the top of the dissolving tank 100. Then, the power shaft 300 is moved, causing piston disc 301 and piston disc 302 to move upwards synchronously. Piston disc 301 separates from the filling ring 200, and the material in the storage area is introduced through the gap between piston disc 301 and the dissolving tank 100 into the mixing area between piston disc 302 and piston disc 301. The power shaft 300 is then moved back to its initial position. At this point, piston disc 301 and piston disc 302 move back into the filling ring 200, and the mixing area forms a sealed space. The agitation structure 400 can agitate and mix the material in the mixing area, while the purging structure can introduce air bubbles into the material to improve its activity and vulcanizability, thereby accelerating the mixing process. Furthermore, it improves the uniformity of material distribution. The rising of air bubbles can also slow down the sinking speed of materials, preventing material settling and thus improving the uniformity of material mixing. After the materials are mixed, the power shaft 300 and its piston discs 301 and 302 move downwards. Piston disc 302 moves to the lower side of the filling ring 200. At this time, the materials in the mixing zone can flow downwards into the collection zone through the gap between piston disc 302 and the dissolving tank 100. Then, the power shaft 300 moves upwards and allows the materials to be mixed in the storage zone to re-enter the mixing zone, thereby realizing a continuous mixing mode. At the same time, the collection zone always stores the mixed materials, and the mixed materials in the mixing zone are continuously replenished into the collection zone, thus enabling a continuous supply mode of materials in the collection zone, which facilitates the continuous supply of catalysts for desulfurization.

[0045] In practical work, to reduce the risk of material clogging pipelines and delivery pumps, plunger pumps can be used to replace the original screw pumps. This can improve the continuity and stability of chemical dosing. At the same time, H2S online monitoring equipment can be installed at the end of the gas purification pipeline network, and the data can be uploaded in real time. The components of the desulfurization liquid, including concentration and by-product salt content, can be tested daily. The dosage of the chemical can be adjusted in time according to the production situation to form a closed-loop control.

[0046] The technical solution of this invention effectively solves the problem of uneven material mixing in traditional dosing devices. By utilizing the cooperation between the stirring structure 400 and the purging structure, the particulate matter in the material can be suspended in the solution for a long time, thereby improving both the uniformity of particulate matter distribution and the stirring effect, which facilitates the complete activation of the catalyst. Moreover, by dividing the interior of the dissolving tank 100 into multiple areas, continuous processing of materials can be achieved, and the collection area can always store the fully mixed material, thereby continuously providing catalyst for desulfurization, improving working efficiency, and improving the desulfurization working mode.

[0047] Furthermore, such as Figure 6 and Figure 7As shown, the agitation structure 400 includes a partition cylinder 401 sleeved on the outside of the power shaft 300 and a plurality of centrifugal plates 402 located on the upper or lower side of the partition cylinder 401 and fixed relative to the power shaft 300. The partition cylinder 401 and the power shaft 300 are connected by a plurality of spiral plates 403, and the spiral plates 403 are used in conjunction with the centrifugal plates 402.

[0048] The partition cylinder 401 is located in the middle of the mixing zone, and has a certain space on its upper and lower sides. This space can be used to install several centrifugal plates 402. Of course, the centrifugal plates 402 are only installed on the upper or lower side of the partition cylinder 401. The partition cylinder 401 and the power shaft 300 can be connected and fixed by several spiral plates 403. When the power shaft 300 rotates, it will drive the partition cylinder 401, centrifugal plates 402 and spiral plates 403 to rotate. The partition cylinder 401 can separate the materials on its inner and outer sides. At this time, the spiral plates 403 on the inner side of the partition cylinder 401 will push the materials in the partition cylinder 401 upward or downward, so that the materials flow vertically. The materials will flow to the vicinity of the centrifugal plates 402, and the rotating centrifugal plates 402 will push the materials to perform centrifugal motion, thereby making the materials flow laterally.

[0049] Specifically, with Figure 7 For example, several centrifugal plates 402 are located on the lower side of the partition cylinder 401. The material inside the partition cylinder 401 flows vertically downwards, and the centrifugal plates 402 push the material to spread in all directions. Meanwhile, the material on the upper side of the partition cylinder 401 is sucked into the partition cylinder 401, and the material on the outer side of the partition cylinder 401 flows upwards based on the flow direction of the material on the upper and lower sides of the partition cylinder 401. Thus, in the vertical plane, the material forms a circulating flow state between the inner wall of the filling ring 200 and the outer wall of the power shaft 300. At the same time, since the power shaft 300 and the stirring structure 400 rotate, the material is also in a rotating state in the horizontal plane. Based on these two flow modes of the material, the uniformity of material mixing and the diversity of mixing methods can be improved. Furthermore, the vertical circulating flow of the material can easily flush out particulate matter in the material, thereby avoiding particulate matter deposition.

[0050] When the centrifugal plate 402 is installed on the upper side of the partition cylinder 401, by setting the rotation direction of the power shaft 300 and the installation direction of the spiral plate 403, the spiral plate 403 can push the material upward to the vicinity of the centrifugal plate 402.

[0051] Furthermore, such as Figure 7 As shown, the centrifugal plate 402 includes a main plate 404 mounted on the power shaft 300 and a secondary plate 405 rotatably connected to the main plate 404 via a connecting shaft 406. The secondary plate 405 is eccentrically disposed on the connecting shaft 406, and the secondary plate 405 and the connecting shaft 406 are connected by an elastic body 407.

[0052] Since the secondary plate 405 is eccentrically set on the main plate 404 via the connecting shaft 406, when the power shaft 300 drives the centrifugal plate 402 to rotate, the pushing force of the material on the secondary plates 405 on both sides of the axis where the connecting shaft 406 is located is different. That is, the secondary plate 405 on the side of the connecting shaft 406 with a larger contact area with the material receives a greater reaction force from the material. At this time, this part of the secondary plate 405 will tilt towards the rear side in the direction of rotation of the centrifugal plate 402. That is, the secondary plate 405 rotates on the main plate 404 via the connecting shaft 406, and the elastic body 407 undergoes elastic deformation. By utilizing the tilting setting of the secondary plate 405, the material centrifugally pushed outward by the main plate 404 can be easily pushed upward or downward, thereby improving the smoothness of material flow.

[0053] When the centrifuge plate 402 is located below the partition cylinder 401, the connecting shaft 406 is located in the lower middle part of the sub-plate 405. When the centrifuge plate 402 is located above the partition cylinder 401, the connecting shaft 406 is located in the upper middle part of the sub-plate 405.

[0054] Since the auxiliary plate 405 is connected to the connecting shaft 406 by an elastic body 407, the tilt angle of the auxiliary plate 405 changes when the rotational speed of the power shaft 300 changes, thereby achieving the purpose of automatic adjustment.

[0055] Furthermore, such as Figures 2 to 4 As shown, a ring network 500 for receiving the materials to be mixed is provided between piston disc 301 and piston disc 302.

[0056] When the piston disc 301 moves upward and disengages from the filling ring 200, the material in the storage area can fall into the mixing area through the gap between the piston disc 301 and the dissolving tank 100. At this time, the flow trajectory of the material is close to the inner wall of the filling ring 200. By setting the piston disc 301 close to the inner wall of the filling ring 200, when the material flows from the storage area into the mixing area, the material can fall naturally into the ring mesh 500, and the particulate matter in the material is intercepted in the ring mesh 500, while the fluid in the material can pass through the ring mesh 500. When the stirring structure 400 drives the material to mix and rotate, the fluid in the material will continuously pass through the ring mesh 500 and flush the particulate matter in the ring mesh 500 in the vertical direction, thus facilitating the mixing of particulate matter into the liquid. At the same time, the way the ring mesh 500 suspends and intercepts the particulate matter can improve the flushing effect of the fluid on the material, thereby improving the mixing uniformity.

[0057] by Figure 4For example, the cross-section of the ring mesh 500 can be set to a right angle. Using this shape, the ring mesh 500, the filling ring 200, and the piston disc 301 can cooperate to form an annular chamber, which can intercept particles in the material. Of course, the cross-sectional shape of the ring mesh 500 can also be set to an arc shape, a stepped shape, or any other shape that can intercept particles. As long as it can achieve the effect of facilitating the flushing of particles by fluid, it is within the scope of protection of this case.

[0058] Furthermore, such as Figures 2 to 5 As shown, the purging structure includes a gas guiding chamber 201 formed by a filling ring 200 and a dissolving tank 100. An air inlet pipe 202 is provided on the dissolving tank 100, and a plurality of air dispersing pipes 203 are provided on the filling ring 200. Both the air inlet pipe 202 and the air dispersing pipes 203 are connected to the gas guiding chamber 201. A plurality of air holes are provided on the air dispersing pipes 203 for use with the ring network 500.

[0059] External gas can be pumped into the air guide chamber 201 through the air inlet pipe 202. The gas in the air guide chamber 201 can be discharged into the mixing zone through several air diffusers 203 and air holes on each air diffuser 203. The gas forms bubbles in the material. By utilizing the floating effect of the bubbles, the fluidity and activation effect of the material can be improved, and the settling speed of the particles can be reduced.

[0060] In the natural state, to prevent material from entering the diffuser pipe 203 and the air guide chamber 201 in the reverse direction through the vent, a switch structure or a blocking structure can be set on the diffuser pipe 203. Alternatively, the diameter of the vent can be reduced so that the fluid cannot enter the diffuser pipe 203 normally.

[0061] In some embodiments, the air diffuser 203 can be disposed on the lower side of the ring network 500, and the air bubbles discharged from the air holes on the air diffuser 203 can directly enter the ring network 500, thereby using the air bubbles to agitate and float the particles, which facilitates the full dispersion of the particles; or the air holes can be disposed at the bottom of the air diffuser 203, so that the air bubbles discharged from the air holes can be directly blown onto the upper surface of the piston disc 302, thereby facilitating the sweeping of the trace sediments on the upper surface of the piston disc 302 and improving the material mixing effect.

[0062] Furthermore, the ring network 500 and the piston disc 301 are relatively fixed.

[0063] The ring mesh 500 and the bottom of the piston disc 301 can be connected together by welding or other means. When the piston disc 301 rotates, it will drive the ring mesh 500 to rotate synchronously, thereby improving the flowability of particles in the ring mesh 500. Furthermore, the air bubbles discharged from the air holes on the several air diffusers 203 can act on any position in the ring mesh 500, avoiding the situation where the air bubbles on the air diffusers 203 can only act on a specific area of ​​the ring mesh 500 when the ring mesh 500 and the air diffusers 203 are relatively fixed. Since the piston disc 301 will be displaced in the vertical direction, the ring mesh 500 and the filling ring 200 will come into contact with each other and slide relative to each other.

[0064] Furthermore, such as Figure 2 , Figure 8 and Figure 9 As shown, the piston disc 2 302 is hollow inside. Several air guide pipes 303 communicating with the inside of the piston disc 2 302 are provided at the bottom of the piston disc 2 302. The input end of the air guide pipe 303 slides upward and is inserted into the air guide chamber 201. Several assembly bodies 304 are provided at the top of the piston disc 2 302. Several exhaust ports 306 communicating with the inside of the piston disc 2 302 are provided on the assembly bodies 304.

[0065] The gas in the gas guide chamber 201 can be introduced into the piston disc 302 through the gas guide pipe 303. The gas in the piston disc 302 can be discharged outward through several exhaust ports 306 on the assembly body 304, thereby forming upward floating and densely distributed bubbles at the bottom of the mixing zone. The bubbles can be used to facilitate the activation of the material.

[0066] Since the piston disc 302 moves vertically, it can drive the air guide pipe 303 to move relative to the filling ring 200. The air guide pipe 303 and the air guide chamber 201 are in a state of mutual communication. However, this connection between the air guide pipe 303 and the air guide chamber 201 restricts the movement of the piston disc 302. Therefore, the piston disc 302 and the power shaft 300 need to be rotatably connected. That is, the piston disc 302 can only move up and down, but cannot rotate.

[0067] Furthermore, the assembly body 304 is movably mounted on the piston disc 302, and an air guide groove 305 communicating with the interior of the piston disc 302 is provided at the bottom of the assembly body 304. The exhaust port 306 is connected to the interior of the piston disc 302 through the air guide groove 305.

[0068] Adjacent assembly units 304 are used in conjunction with each other through exhaust ports 306.

[0069] like Figure 9As shown, the air guide groove 305 is located at the bottom of the assembly body 304, and the exhaust port 306 is located on the side of the assembly body 304. The air guide groove 305 and the exhaust port 306 are connected, so that the gas in the piston disc 2 302 can be supplied into the exhaust port 306 through the air guide groove 305. In the natural state, the downward pressure of the material on the top of the assembly body 304 will cause the exhaust port 306 to be hidden in the piston disc 2 302. When the air pressure in the piston disc 2 302 increases, the assembly body 304 slides upward, and the exhaust port 306 gradually appears in the mixing zone. At this time, the gas in the piston disc 2 302 can be discharged through the exhaust port 306. When the air pressure in the piston disc 2 302 decreases, the assembly body 304 can be reset. At this time, the exhaust port 306 is separated from the mixing zone, thereby realizing the automatic sealing of the exhaust port 306 and preventing the material from entering the piston disc 2 302.

[0070] The exhaust port 306 is located on the side of the assembly body 304, and the exhaust port 306 can be set horizontally or at an angle. In this way, the air bubbles discharged from the exhaust port 306 can act on the adjacent assembly body 304, thereby purging the trace sediments on the adjacent assembly body 304. At the same time, when several assembly bodies 304 are distributed along the circumference of the piston disc 302, several assembly bodies 304 can achieve a sequential purging effect. Here, the several exhaust ports 306 can be arranged in a clockwise or counterclockwise purging mode.

[0071] Furthermore, such as Figure 2 , Figure 3 and Figure 5 As shown, a partition ring 307 is provided in the air guide chamber 201 to divide the air guide chamber 201 into an exhaust chamber on the upper side and an air supply chamber on the lower side. The air inlet pipe 202, the air diffuser pipe 203 and the air guide pipe 303 are all connected to the air supply chamber. A secondary pipe 309 connected to the exhaust chamber is provided on the air inlet pipe 202.

[0072] A three-way pipe 308 is provided on the dissolving tank 100. One input end of the three-way pipe 308 is connected to the exhaust chamber, and the other input end of the three-way pipe 308 is connected to the collection area.

[0073] The opening of the secondary pipe 309 is located within the ring network 500 and faces downwards. This prevents materials entering the mixing zone from entering the secondary pipe 309 and the exhaust chamber. A certain storage space is left on the upper side of the mixing zone to facilitate air storage. The air discharged into the mixing zone by the purging structure can be collected on the upper side of the mixing zone, and the air can enter the exhaust chamber through the secondary pipe 309. The air in the exhaust chamber is then discharged through the three-way pipe 308, thereby achieving smooth gas flow. At the same time, when the amount of material in the collection zone increases or decreases, in order to ensure the stability of the gas pressure in the collection zone, the secondary pipe 309 can be used to connect it to the outside of the dissolving tank 100.

[0074] Furthermore, the dosing device also includes a power unit for driving the power shaft 300. The power unit includes a motor 600 and a cylinder 601 mounted on the dissolving tank 100. The output end of the motor 600 is provided with a transmission shaft 602. The transmission shaft 602 slides relative to the power shaft 300 and rotates synchronously. The movable end of the cylinder 601 is rotatably connected to the power shaft 300 through a connecting ring 603.

[0075] like Figure 2 and Figure 7 As shown, the end of the power shaft 300 passes through the piston disc 301, and the end of the transmission shaft 602 slides into the power shaft 300. When the motor 600 is running, it will directly drive the power shaft 300 to rotate through the transmission shaft 602. At this time, the power shaft 300 and the connecting ring 603 rotate relative to each other. When the cylinder 601 extends or retracts, the cylinder 601 will drive the power shaft 300 and the transmission shaft 602 to slide relative to each other through the connecting ring 603, thereby adjusting the height position of the piston disc 301 and the piston disc 302.

[0076] Although this application has been described in conjunction with specific features and embodiments, it is obvious that various modifications and combinations can be made thereto without departing from the spirit and scope of this application. Accordingly, this specification and drawings are merely exemplary illustrations of the application as defined herein, and are to be considered as covering any and all modifications, variations, combinations, or equivalents within the scope of this application. Clearly, those skilled in the art can make various alterations and modifications to this application without departing from its scope. Thus, if such modifications and modifications fall within the scope of this application and its equivalents, this application intends to include such modifications and modifications.

Claims

1. An automatic dosing device for coking desulfurization catalyst, characterized in that, The device includes a vertically arranged dissolving tank, a filling ring located in the middle of the inner wall of the dissolving tank, and a power shaft located inside the filling ring. A piston disk 1 and a piston disk 2 are arranged on the power shaft. The piston disk 1 and the piston disk 2 divide the internal space of the dissolving tank into an upper storage area, a middle mixing area, and a lower collection area. The storage area is used to store unmixed materials, and the collection area is used to store mixed materials. An agitation structure and a purging structure are provided between the first piston disk and the second piston disk; A ring mesh for receiving the materials to be mixed is provided between piston disk one and piston disk two; The purging structure includes a gas guiding chamber formed by the filling ring and the dissolving tank. An air inlet pipe is provided on the dissolving tank, and a plurality of air dispersing pipes are provided on the filling ring. Both the air inlet pipe and the air dispersing pipes are connected to the gas guiding chamber. A plurality of air holes are provided on the air dispersing pipes to cooperate with the ring network. The ring network is fixedly arranged opposite to the piston disk; The piston disc 2 is hollow inside. Several air guide pipes communicating with the interior of the piston disc 2 are provided at the bottom of the piston disc 2. The input end of the air guide pipe is slid upward and inserted into the air guide chamber. Several assembly bodies are provided at the top of the piston disc 2. Several exhaust ports communicating with the interior of the piston disc 2 are provided on the assembly bodies. The assembly is movably mounted on the piston disc 2. An air guide groove communicating with the interior of the piston disc 2 is provided at the bottom of the assembly, and the exhaust port communicates with the interior of the piston disc 2 through the air guide groove. The adjacent assembled units are used in conjunction with each other through exhaust ports; A partition ring is provided in the air guide chamber to divide the air guide chamber into an upper exhaust chamber and a lower air supply chamber. The air inlet pipe, the air diffuser pipe and the air guide pipe are all connected to the air supply chamber. A secondary pipe connected to the exhaust chamber is provided on the air inlet pipe. A three-way pipe is provided on the dissolving tank. One input end of the three-way pipe is connected to the exhaust chamber, and the other input end of the three-way pipe is connected to the collection area.

2. The automatic dosing device for coking desulfurization catalyst according to claim 1, characterized in that, The agitation structure includes a partition sleeved on the outside of the power shaft and a plurality of centrifugal plates located on the upper or lower side of the partition sleeve and fixed relative to the power shaft. The partition sleeve and the power shaft are connected by a plurality of spiral plates, which are used in conjunction with the centrifugal plates.

3. The automatic dosing device for coking desulfurization catalyst according to claim 2, characterized in that, The centrifugal plate includes a main plate mounted on the power shaft and a secondary plate rotatably connected to the main plate via a connecting shaft. The secondary plate is eccentrically disposed on the connecting shaft, and the secondary plate is connected to the connecting shaft via an elastic body.

4. The automatic dosing device for coking desulfurization catalyst according to claim 1, characterized in that, The dosing device also includes a power unit for driving the power shaft. The power unit includes a motor and a cylinder mounted on the dissolving tank. The output end of the motor is provided with a transmission shaft. The transmission shaft slides relative to the power shaft and rotates synchronously. The movable end of the cylinder is rotatably connected to the power shaft through a connecting ring.

Images