Mixing device for blood purification adsorbent production

Abstract

The invention relates to the technical field of mixing, and particularly discloses a mixing device for blood purification adsorbent production, the mixing device comprises a kettle body and a stirring member rotatably arranged in the kettle body, the stirring member comprises a middle cylinder and a plurality of blade assemblies, the top of the middle cylinder is provided with a plurality of nozzles, the outer side of the middle cylinder is coaxially and slidably provided with an annular plate, and the upper end of the annular plate is provided with a material pressing member; the pressing part comprises a support and a plurality of pressing plates rotationally arranged on the support, and a conveying part is rotationally arranged in the middle cylinder; when the conveying piece rotates reversely, the annular plate moves upwards to block the through hole, the support is opened by the pressing plate, and the conveying piece conveys the solution in the kettle body upwards to the spray head through the channel and sprays the solution to the support; when the conveying part rotates in the forward direction, the annular plate moves downwards to open the through hole, the pressing plate presses the adsorbent downwards to the position below the liquid level, the conveying part sucks a solution in the kettle body into the channel through the through hole and conveys the solution downwards so as to impact the adsorbent at the bottom of the kettle body, and the adsorbent can be well wrapped in the stirring process of the adsorbent and the solution.

Description

Technical Field

[0001] The invention relates to the field of mixing technology, and in particular to a mixing device for producing a blood purification adsorbent. Background Art

[0002] Blood purification adsorbents are the core materials in blood purification technology. They remove pathogenic substances from the blood through physical or chemical effects and play a key role in clinical treatment. During the coating process of blood purification adsorbents, the following situations may occur: 1. During coating, the activated carbon floats on the liquid surface, and it is difficult for existing mixing equipment to mix the coating liquid and activated carbon from the liquid surface. This affects its coating efficiency. 2. During the coating process, part of the activated carbon enters the coating liquid through its pores and will gradually sink to the bottom of the liquid. At this time, the density of the activated carbon at the bottom is higher, and they are more likely to contact each other, resulting in poor coating effect.

[0003] A Chinese patent with announcement number CN119701759B discloses a quantitative mixing device for raw materials for refractory brick processing, including a mixing tank and a mixing mechanism arranged in the mixing tank for stirring the refractory brick raw materials, a discharge frame fixedly connected to the top of the mixing tank, a quantitative cylinder fixedly connected to the top of the discharge frame, a discharge mechanism for quantitatively discharging the raw materials in the quantitative cylinder provided in the discharge frame, an upper cylinder fixedly connected to the center position inside the quantitative cylinder, four partitions fixedly connected equidistantly between the inner side of the quantitative cylinder and the upper cylinder, an arc-shaped discharge port is opened at the bottom end of the quantitative cylinder and between the four partitions, the side walls of the four partitions are provided with adjustment plates, and four lower cylinders are rotatably connected to the inner side of the upper cylinder.

[0004] When mixing the refractory brick raw materials, the above technical scheme first places the refractory brick raw materials between the partitions in the metering cylinder respectively, and then during mixing, controls the discharge mechanism to start and release the blockage at the arc-shaped discharge port, and discharges the raw materials in the metering cylinder into the mixing tank in a quantitative manner, and then after the quantitative discharge, closes the discharge mechanism and controls the mixing mechanism to start, mixes the raw materials in the mixing tank, and then opens the discharge port at the bottom of the mixing tank to discharge the mixed raw materials after the mixing is completed; however, since the adsorbent will float on the liquid surface after being placed in the mixing tank, it is difficult to submerge the adsorbent below the liquid surface through the mixing treatment of the mixing mechanism, so that the adsorbent will accumulate near the liquid surface in large quantities, which will lead to poor coating effect. Summary of the invention

[0005] The present invention provides a mixing device for producing a blood purification adsorbent, aiming to solve the problem in the related art that it is difficult to obtain good coating of the adsorbent during the stirring process of the adsorbent and the solution.

[0006] A mixing device for producing a blood purification adsorbent, comprising a kettle body and a stirring member rotatably arranged in the kettle body. The top of the kettle body has a feed inlet, and the bottom has a discharge outlet. The stirring member includes a middle cylinder coaxially arranged with the kettle body and a plurality of blade assemblies arranged outside the middle cylinder. There is a channel in the middle cylinder, and a plurality of spray heads communicating with the channel are arranged at the top of the middle cylinder. Through holes communicating with the channel are formed on the outer periphery of the middle cylinder. A ring plate is coaxially and slidably arranged outside the middle cylinder, and an opening matching the through hole is formed on the ring plate. A pressure-feeding member is arranged at the upper end of the ring plate. The pressure-feeding member includes a bracket and a plurality of pressing plates rotatably arranged on the bracket. A conveying member is rotatably arranged in the middle cylinder, and the conveying member drives the stirring member to rotate coaxially and reversely through a driving assembly; when the conveying member rotates reversely, the ring plate moves upward to block the through hole, the pressing plate opens the bracket, and the conveying member conveys the solution in the kettle body upward through the channel to the spray heads and sprays it onto the bracket; when the conveying member rotates forward, the ring plate moves downward to open the through hole, the pressing plate presses the adsorbent down below the liquid level, and the conveying member sucks the solution in the kettle body into the channel through the through hole and conveys it downward to impact the adsorbent at the bottom of the kettle body.

[0007] In the present invention, when controlling the reverse rotation of the conveying member, the middle cylinder can rotate clockwise. Under the auxiliary pushing action of the solution in the kettle body on the pressing plate, the ring plate moves upward relative to the middle cylinder. The conveying member conveys the solution in the kettle body upward from the bottom of the channel to the spray heads and makes the solution spray downward onto the bracket, so as to prevent adsorbent particles from adhering above the bracket and on the front side of the pressing plate along the rotation direction of the middle cylinder; when the conveying member rotates forward rapidly, the bracket can move downward, and the pressing plate deflects from the vertical state to an inclined state under the action of water flow impact, so that the adsorbent particles to be mixed are pressed down below the liquid level by the pressing plate, so that the adsorbent particles to be mixed can be better mixed with the solution. The blade assemblies can increase the disturbance of the solution in the kettle body to improve the mixing effect. The water flow in the channel can impact downward so that the adsorbent particles in the kettle body can always have good mixing contact with the solution, thereby improving the mixing effect.

[0008] Preferably, spiral guide grooves are formed on the outer wall of the middle cylinder, and guide rods matching the spiral guide grooves are arranged on the inner ring side of the ring plate. The cooperation between the spiral guide grooves and the guide rods enables the ring plate to move up and down.

[0009] Preferably, there are two spiral guide grooves and two guide rods respectively. The two spiral guide grooves are symmetrically arranged with respect to the vertical plane where the axis of the middle cylinder is located, and the two guide rods are symmetrically arranged with respect to the vertical plane where the axis of the ring plate is located; thus, the stability of the up and down movement of the ring plate is improved.

[0010] Preferably, a plurality of material dropping ports are uniformly arranged on the bracket along its circumferential direction, a shaft rod is fixed in the material dropping port, and the pressing plate is rotatably connected to the shaft rod.

[0011] Preferably, one side of the blanking port close to the axis of the ring plate is a vertical surface one, one side of the pressing plate close to the axis of the ring plate is a vertical surface two that cooperates with the vertical surface one, one side of the blanking port far from the axis of the ring plate is an arc surface one, and one side of the pressing plate far from the axis of the ring plate is an arc surface two that cooperates with the arc surface one.

[0012] Preferably, the pressing plate is larger than the blanking port, so that when the conveying member rotates forward rapidly, the adsorbent particles to be mixed can be continuously pressed by the pressing plate below the liquid level.

[0013] Preferably, a support ring is coaxially and fixedly arranged at the bottom of the kettle body. A sealing member is coaxially and slidably arranged in the support ring through an elastic member one. The middle cylinder is located above the support ring and is rotatably connected to it.

[0014] Preferably, the sealing member includes a base frame and a net plate fixedly arranged at the lower end of the base frame. The outer peripheral side of the base frame has a plurality of liquid discharge ports surrounded by the net plate.

[0015] Preferably, the blade assembly includes a bearing ring fixedly arranged on the outer side of the middle cylinder. A plurality of blade plates are arranged along the circumference of the bearing ring. The blade plates are rotatably connected to the bearing ring. When the conveying member rotates reversely, the middle cylinder can rotate clockwise, so that the blade plates can swing upward from the vertical state. At this time, the blade assembly can reduce the disturbance to the solution in the kettle body. When the conveying member rotates forward, the middle cylinder can rotate counterclockwise. At this time, the water flow can impact the blade plates to deflect the blade plates to the vertical state. At this time, the blade assembly can increase the disturbance to the solution in the kettle body to improve the mixing effect.

[0016] Preferably, the driving assembly includes a gear one coaxially and fixedly arranged with the conveying member, a gear ring coaxially and fixedly arranged on the inner ring side of the middle cylinder, and a gear two rotatably arranged on the top of the kettle body. The gear two meshes with the gear one and the gear ring. A motor for driving the conveying member to rotate is installed on the top of the kettle body.

[0017] Adopting the above technical solutions, the beneficial effects of the present invention are as follows: when controlling the conveying member to rotate reversely, the middle cylinder can rotate clockwise. At this time, the adsorbent particles can be smoothly added into the kettle body. At this time, the blade assembly can reduce the disturbance to the solution in the kettle body to avoid the adsorbent particles to be mixed quickly moving into the discharge port at the bottom of the kettle body. When controlling the conveying member to rotate forward, the middle cylinder can rotate counterclockwise, so that the adsorbent particles to be mixed are pressed by the pressing plate below the liquid level, so that the adsorbent particles to be mixed can be better mixed with the solution, thereby improving the mixing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 is a cross-sectional view of the kettle body of the present invention.

[0020] Figure 3 For Figure 2 the enlarged view of part A in

[0021] Figure 4 is the schematic diagram of the cooperation between the cylinder, support ring, ring plate and bearing ring in the present invention.

[0022] Figure 5 is the schematic diagram of the cooperation between the first gear, gear ring and second gear in the present invention.

[0023] Figure 6 is the schematic diagram of the cooperation between the ring plate and the cylinder in the present invention.

[0024] Figure 7 is the schematic diagram of the structure of the cylinder in the present invention.

[0025] Figure 8 is the state of the pressing plate when the conveying member rotates forward in the present invention.

[0026] Figure 9 is the exploded view of the support ring and the mesh plate along the axial direction of the support ring in the present invention.

[0027] Figure 10 is the schematic diagram of the cooperation between the bearing ring, limiting ring, blade and guide plate when the conveying member rotates reversely in the present invention.

[0028] Reference numerals: 10, kettle body; 11, motor; 12, discharge port; 20, cylinder; 201, through hole; 202, spiral guide groove; 21, nozzle; 22, bearing ring; 221, limiting ring; 23, blade; 24, guide plate; 241, V-shaped guiding portion; 30, support ring; 31, first elastic member; 32, base frame; 321, liquid discharge port; 33, mesh plate; 40, ring plate; 401, opening; 402, guide rod; 41, support; 411, blanking port; 412, first vertical surface; 413, first arc surface; 42, pressing plate; 421, second vertical surface; 422, second arc surface; 50, conveying member; 51, first gear; 52, gear ring; 53, second gear; 531, mounting shaft. Detailed implementation manners

[0029] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the drawings. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0030] Refer to Figure 1 and Figure 2, A mixing device for producing a blood purification adsorbent, comprising a kettle body 10 and a stirring member rotatably disposed within the kettle body 10. The top of the kettle body 10 has a plurality of feed ports, and the bottom has a discharge port 12. Before mixing, the solution is first added into the kettle body 10 through the feed port, and then the adsorbent particles to be mixed are added into the kettle body 10 through the feed port. Subsequently, the stirring member is started to stir and mix the materials in the kettle body 10.

[0031] Reference Figure 2 And Figures 3 - 8 , The stirring member includes a middle cylinder 20 coaxially arranged with the kettle body 10 and a plurality of blade assemblies disposed outside the middle cylinder 20. The middle cylinder 20 has a channel inside, and the top of the middle cylinder 20 has a plurality of nozzles 21 communicating with the channel. The plurality of nozzles 21 are evenly arranged along the circumferential direction of the middle cylinder 20. A plurality of through holes 201 communicating with the channel are opened on the outer circumference of the middle cylinder 20. A ring plate 40 is coaxially and slidably arranged outside the middle cylinder 20. In this embodiment, a spiral guide groove 202 is opened on the outer wall of the middle cylinder 20, and the inner ring side of the ring plate 40 has a guide rod 402 slidably engaged with the spiral guide groove 202. There are two spiral guide grooves 202 and two guide rods 402 respectively. The two spiral guide grooves 202 are symmetrically arranged with respect to the vertical plane where the axis of the middle cylinder 20 is located, and the two guide rods 402 are symmetrically arranged with respect to the vertical plane where the axis of the ring plate 40 is located. A plurality of openings 401 cooperating with the through holes 201 are opened on the ring plate 40, and a pressing member is arranged at the upper end of the ring plate 40. The pressing member includes a bracket 41 fixedly connected to the ring plate 40 and a plurality of pressing plates 42 rotatably arranged on the bracket 41.

[0032] The bracket 41 is annular, the outer ring side of the bracket 41 is attached to the inner wall of the kettle body 10. A plurality of material dropping ports 411 are evenly arranged along the circumferential direction of the bracket 41. A shaft rod is fixedly arranged in the material dropping port 411, and the pressing plate 42 is rotatably connected to the shaft rod. One side of the material dropping port 411 close to the axis of the ring plate 40 is a vertical plane one 412, and one side of the pressing plate 42 close to the axis of the ring plate 40 is a vertical plane two 421 cooperating with the vertical plane one 412. One side of the material dropping port 411 far from the axis of the ring plate 40 is an arc surface one 413, and one side of the pressing plate 42 far from the axis of the ring plate 40 is an arc surface two 422 cooperating with the arc surface one 413. The pressing plate 42 is larger than the size of the material dropping port 411. In the initial state, the pressing plate 42 is in a vertical state under the action of gravity, and the guide rod 402 is located at the lowest end of the spiral guide groove 202.

[0033] A conveying member 50 is rotatably provided inside the middle cylinder 20. The conveying member 50 adopts a conveying auger. The conveying member 50 drives the middle cylinder 20 to rotate coaxially and reversely through a driving assembly. The driving assembly includes a first gear 51 fixedly arranged coaxially with the conveying member 50, a gear ring 52 fixedly arranged coaxially on the inner ring side of the middle cylinder 20, and two second gears 53 rotatably arranged on the top of the kettle body 10. The second gears 53 are meshed with the first gear 51 and the gear ring 52. A motor 11 for driving the conveying member 50 to rotate is installed on the top of the kettle body 10. It should be noted that the first gear 51, the gear ring 52, and the second gears 53 are all located on the top of the kettle body 10. The top of the kettle body 10 is fixedly provided with a mounting shaft 531 for mounting the second gears 53.

[0034] When the motor 11 controls the conveying member 50 to rotate reversely (when looking at the conveying member 50 from top to bottom along the axial direction of the middle cylinder 20, the conveying member 50 rotates counterclockwise), the middle cylinder 20 can rotate clockwise (when looking at the middle cylinder 20 from top to bottom along the axial direction) under the action of the driving assembly. At this time, the ring plate 40 can slide upward along the spiral guide groove 202 and move upward relative to the middle cylinder 20 until the guide rod 402 moves to the uppermost end of the spiral guide groove 202. At this time, the ring plate 40 completely blocks the through hole 201. The pressing plate 42 abuts against one side of the material dropping port 411 and maintains a vertical state. The material dropping port 411 is opened. The conveying member 50 conveys the solution in the kettle body 10 upward from the bottom of the channel to the nozzle 21 and makes the solution spray downward onto the support 41. When the conveying member 50 rotates forward, the middle cylinder 20 can rotate counterclockwise under the action of the driving assembly. At this time, the ring plate 40 can slide downward along the spiral guide groove 202 under its own weight and move downward relative to the middle cylinder 20 until the guide rod 402 moves to the lowermost end of the spiral guide groove 202. At this time, the ring plate 40 completely opens the through hole 201. The pressing plate 42 deflects from the vertical state to an inclined state. The conveying member 50 sucks the solution in the kettle body 10 into the channel through the through hole 201 and conveys it downward to impact the adsorbent at the bottom of the kettle body 10.

[0035] Reference Figures 2 - 4 and Figure 9, a support ring 30 is coaxially and fixedly provided at the bottom of the kettle body 10. A sealing member is coaxially and slidably provided in the support ring 30 through an elastic member 31. The elastic member 31 is a spring. The middle cylinder 20 is located above the support ring 30 and is rotatably connected thereto. The sealing member includes a base frame 32 and a net plate 33 fixedly provided at the lower end of the base frame 32. The net plate 33 is circular and is adapted to the opening at the bottom of the support ring 30. The outer peripheral side of the base frame 32 has a plurality of liquid discharge ports 321 surrounded by the net plate 33; the elastic member 31 has a tendency to pull the sealing member upward relative to the support ring 30. In the initial state, the lower end surface of the net plate 33 is flush with the lower end surface of the support ring 30, and the liquid discharge ports 321 are blocked by the inner side surface of the support ring 30; when the conveying member 50 rotates reversely, the lower end surface of the net plate 33 remains flush with the lower end surface of the support ring 30. When the conveying member 50 rotates forward to suck the solution in the kettle body 10 into the channel through the through hole 201 and convey it downward, it can impact the net plate 33 downward, so that the net plate 33 moves downward relative to the support ring 30 and abuts against the discharge port 12, the elastic member 31 is stretched, and the liquid discharge ports 321 are opened; it should be noted that the mesh holes on the net plate 33 are smaller than the particle size of the adsorbent particles.

[0036] Reference Figure 2 , Figure 4 and Figure 10 , in this embodiment, there are three groups of blade assemblies. The blade assembly includes a bearing ring 22 fixedly provided on the outer side of the middle cylinder 20. A plurality of blade plates 23 are provided along the circumference of the bearing ring 22. The blade plates 23 are rotatably connected to the bearing ring 22. A guide plate 24 corresponding to each blade plate 23 is fixedly provided on the outer periphery of the bearing ring 22. One end of the blade plate 23 rotatably connected to the bearing ring 22 abuts against the guide plate 24. The side of the guide plate 24 away from the blade plate 23 has a V-shaped guiding portion 241. A limiting ring 221 is provided on the bearing ring 22 above the guide plate 24. In the initial state, the blade plates 23 are in a vertical state under the action of gravity. When the blade plates 23 swing upward from the vertical state and abut against the lower end surface of the limiting ring 221, the end of the blade plate 23 away from the end rotatably connected to the bearing ring 22 is in a slightly downward inclined state; when the conveying member 50 rotates reversely, the middle cylinder 20 can rotate clockwise, so that the blade plates 23 can swing upward from the vertical state to a state where they abut against the lower end surface of the limiting ring 221. At this time, with the assistance of the V-shaped guiding portion 241, the blade assembly can reduce the disturbance to the solution in the kettle body 10; when the conveying member 50 rotates forward, the middle cylinder 20 can rotate counterclockwise. At this time, the water flow can impact the blade plates 23 to deflect the blade plates 23 from the state where they abut against the lower end surface of the limiting ring 221 to the vertical state. At this time, the blade assembly can increase the disturbance to the solution in the kettle body 10 to improve the mixing effect.

[0037] Specific working principle: Reference Figures 1 - 10, add a solution into the kettle body 10 so that the liquid level just covers the support 41. Subsequently, the motor 11 controls the conveying member 50 to rotate in the reverse direction at a slower speed. The middle cylinder 20 can rotate clockwise. Under the auxiliary pushing action of the solution in the kettle body 10 on the pressing plate 42, the ring plate 40 can slide upward along the spiral guide groove 202 and move upward relative to the middle cylinder 20 until the guide rod 402 moves to the uppermost end of the spiral guide groove 202. Subsequently, add the adsorbent particles to be mixed into the kettle body 10 through the feed port until the total height of the materials in the kettle body 10 is below the support 41. During this process, the conveying member 50 conveys the solution in the kettle body 10 upward through the mesh plate 33 at the bottom of the channel to the nozzle 21 and makes the solution spray downward onto the support 41 to prevent the adsorbent particles from adhering above the support 41 and on the front side of the pressing plate 42 along the rotation direction of the middle cylinder 20. The blade assembly can reduce the disturbance of the solution in the kettle body 10 to prevent the adsorbent particles to be mixed from quickly moving into the discharge port 12 at the bottom of the kettle body 10.

[0038] After adding the adsorbent particles to be mixed, control the conveying member 50 to rotate forward quickly. At this time, the middle cylinder 20 can rotate counterclockwise quickly, and the support 41 can move downward. Under the action of the water flow impact, the pressing plate 42 deflects from the vertical state to the inclined state, so that the adsorbent particles to be mixed are pressed down by the pressing plate 42 below the liquid level, so that the adsorbent particles to be mixed can be better mixed with the solution, and prevent some adsorbent particles from not being evenly mixed because they float on the liquid surface; during this process, the blade assembly can increase the disturbance of the solution in the kettle body 10 to improve the mixing effect; in addition, since the conveying member 50 can suck the solution in the kettle body 10 into the channel through the through hole 201 and convey it downward when rotating forward, the water flow in the channel can impact the mesh plate 33 downward, so that the mesh plate 33 moves downward relative to the support ring 30 and abuts against the discharge port 12, the first elastic member 31 is stretched, and the drain port 321 is opened. Thus, the water flow flowing out from the drain port 321 can flush the materials deposited at the bottom of the kettle body 10 upward, so that the adsorbent particles in the kettle body 10 can always have good mixing contact with the solution, thereby improving the mixing effect.

[0039] After mixing, control the equipment to stop and discharge all the materials through the discharge port 12. Subsequently, purified water can be added into the kettle body 10 through the feed port to clean the kettle body 10.

[0040] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A mixing device for producing a blood purification adsorbent, comprising a kettle body and a stirring member rotatably disposed in the kettle body. The top of the kettle body has a feed inlet, and the bottom has a discharge outlet. It is characterized in that: The stirring member includes a middle cylinder coaxially arranged with the kettle body and a plurality of blade assemblies disposed outside the middle cylinder. A channel is provided in the middle cylinder. The top of the middle cylinder has a plurality of nozzles communicating with the channel. Through holes communicating with the channel are formed on the outer periphery of the middle cylinder. A ring plate is coaxially and slidably disposed outside the middle cylinder. An opening cooperating with the through hole is formed on the ring plate. A pressing member is provided at the upper end of the ring plate. The pressing member includes a bracket and a plurality of pressing plates rotatably disposed on the bracket. A conveying member is rotatably disposed in the middle cylinder. The conveying member drives the stirring member to rotate coaxially in the reverse direction through a driving assembly; When the conveying member rotates in the reverse direction, the ring plate moves upward to block the through hole, the pressing plates open the bracket, and the conveying member conveys the solution in the kettle body upward through the channel to the nozzles and sprays it onto the bracket; when the conveying member rotates in the forward direction, the ring plate moves downward to open the through hole, the pressing plates press the adsorbent below the liquid level, and the conveying member sucks the solution in the kettle body into the channel through the through hole and conveys it downward to impact the adsorbent at the bottom of the kettle body.

2. The mixing device for producing a blood purification adsorbent according to claim 1, characterized in that, Spiral guide grooves are formed on the outer wall of the middle cylinder, and guide rods cooperating with the spiral guide grooves are provided on the inner ring side of the ring plate.

3. A mixing device for producing a blood purification adsorbent according to claim 2, wherein, There are two spiral guide grooves and two guide rods respectively. The two spiral guide grooves are symmetrically arranged with respect to the vertical plane where the axis of the middle cylinder is located, and the two guide rods are symmetrically arranged with respect to the vertical plane where the axis of the ring plate is located.

4. A mixing device for producing a blood purification adsorbent according to claim 1, characterized in that, A plurality of material dropping ports are uniformly arranged on the bracket along its circumferential direction. Shaft rods are fixedly arranged in the material dropping ports, and the pressing plates are rotatably connected to the shaft rods.

5. A mixing device for producing a blood purification adsorbent according to claim 4, characterized in that, One side of the material dropping port close to the axis of the ring plate is a vertical plane one, one side of the pressing plate close to the axis of the ring plate is a vertical plane two cooperating with the vertical plane one, one side of the material dropping port far from the axis of the ring plate is an arc surface one, and one side of the pressing plate far from the axis of the ring plate is an arc surface two cooperating with the arc surface one.

6. A mixing device for producing a blood purification adsorbent according to claim 4, characterized in that, The pressing plate is larger than the size of the material dropping port.

7. A mixing device for producing a blood purification adsorbent according to claim 1, characterized in that, A support ring is coaxially and fixedly arranged at the bottom of the kettle body. A blocking member is coaxially and slidably arranged in the support ring through an elastic member. The middle cylinder is located above the support ring and is rotatably connected to it.

8. A mixing device for producing a blood purification adsorbent according to claim 7, wherein, The blocking member includes a base frame and a net plate fixedly arranged at the lower end of the base frame. A plurality of liquid discharge ports surrounded by the outer peripheral side of the base frame and the net plate are provided.

9. A mixing device for producing a blood purification adsorbent according to claim 1, characterized in that, The blade assembly includes a bearing ring fixedly arranged outside the middle cylinder. A plurality of blade plates are arranged along the circumferential direction of the bearing ring. The blade plates are rotatably connected to the bearing ring.

10. A mixing device for producing a blood purification adsorbent according to any one of claims 1-9, characterized in that, The driving assembly includes a gear one coaxially and fixedly arranged with the conveying member, a gear ring coaxially and fixedly arranged on the inner ring side of the middle cylinder, and a gear two rotatably arranged at the top of the kettle body. The gear two meshes with the gear one and the gear ring. A motor for driving the conveying member to rotate is installed at the top of the kettle body.

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