Filling device for blood purification adsorbent

Abstract

The present invention relates to the technical field of blood purification treatment equipment, and specifically discloses a filling device for blood purification adsorbent, including a raw material mixing tank and a transfer mechanism. The raw material mixing tank is provided with a capture supply pipe connected to the raw material mixing tank. The transfer mechanism includes a suction filling cylinder and a movable assembly for controlling the movement of the suction filling cylinder. A suction piston is slidably provided in the suction filling cylinder. The capture supply pipe is provided with multiple capture supply pipes and arranged radially along the raw material mixing tank. A feed hole is provided on the capture supply pipe. The length direction of the feed hole is parallel to the axial direction of the raw material mixing tank. The capture supply pipe is connected to the inner cavity of the raw material mixing tank through the feed hole. An opening and closing part is movably provided on the capture supply pipe. The opening and closing part controls the opening or closing of the feed hole. The present invention enables the adsorbent particles of the adsorbent mixture captured by the capture supply pipe to have high uniformity through the arrangement of the capture supply pipe and the setting of the feed hole.

Description

Technical Field

[0001] The present invention relates to the technical field of blood purification treatment equipment, and in particular to a filling device for a blood purification adsorbent. Background Art

[0002] Blood purification therapy refers to the use of certain instruments and equipment to draw the patient's blood out of the body, separate the plasma from the blood through a plasma separator, introduce the plasma into an immunoadsorbent device to contact the immunoadsorbent, remove pathogenic substances by selective adsorption, and then return the purified plasma to the patient's body to achieve the treatment purpose.

[0003] Blood purification adsorbent is a mixture of various adsorbent particles and water. Before use, the adsorbent needs to be filled into the perfusion device. The Chinese patent document with the announcement number CN215514264U discloses a blood purification adsorbent filling system, which includes a sealed sub-filling tank for holding the adsorbent mixture, a liquid pipeline with a bottom end connected to the bottom of the sub-filling tank and a top end extending out of the sub-filling tank, a moving mechanism, a filling cylinder arranged on the moving mechanism and capable of translational movement driven by the moving mechanism, and a piston arranged in the filling cylinder. The lower end of the filling cylinder is provided with an opening that can be sealed with the top of the liquid pipeline. The piston translates along the axis in the filling cylinder to allow the filling cylinder to absorb or release the adsorbent mixture through the opening. The moving mechanism can drive the filling cylinder to move back and forth between the sub-filling tank and the adsorption column housing. Compressed air is introduced into the bottom of the sub-filling tank, and the compressed air can stir the adsorbent mixture to circulate and maintain the uniformity of the adsorbent mixture.

[0004] The specification of this solution does not disclose the working state of the stirring paddle when the filling cylinder extracts the mixture from the liquid pipeline, or the movement state of the mixture in the sub-tank. Since the position of the liquid pipeline relative to the sub-tank is fixed, assuming that the mixture in the sub-tank is rotating, then under the action of centrifugal force, the granules in the sub-tank continue to move in a circular motion. At the location of the liquid pipeline, the density of the granules is uniform, that is, the liquid pipeline's ability to capture particles of different densities is poor, which to some extent affects the uniformity of filling. Assuming that the mixture in the sub-tank tends to be stationary, then because the bottom of the sub-tank is bucket-shaped and the liquid pipeline cannot directly reach under the stirring paddle, a large amount of granules will converge in the middle of the sub-tank, reducing the liquid pipeline's ability to capture large-mass granules, also affecting the uniformity of filling. Summary of the Invention

[0005] The present invention provides a filling device for a blood purification adsorbent, aiming to solve the problem of low uniformity of an adsorbent mixture extracted by a liquid pipeline in the related art.

[0006] A filling device for a blood purification adsorbent of the present invention comprises a raw material mixing tank and a transfer mechanism, wherein the raw material mixing tank is provided with an agitator and a capture supply pipe, the capture supply pipe is connected to the raw material mixing tank, the transfer mechanism comprises a moving component and a suction filling cylinder, a suction piston is slidably provided in the suction filling cylinder, the moving component is used to control the movement of the suction filling cylinder, and the suction filling cylinder and the capture supply pipe are selectively connected; the capture supply pipe is provided with multiple capture supply pipes, and the multiple capture supply pipes are arranged along the radial direction of the raw material mixing tank, the length direction of the capture supply pipe is parallel to the axial direction of the raw material mixing tank, a feed hole is provided on the tube wall of the capture supply pipe, the length direction of the feed hole is consistent with the length direction of the capture supply pipe, the inner cavity of the capture supply pipe is connected to the inner cavity of the raw material mixing tank through the feed hole, and an opening and closing component is movably provided on the capture supply pipe, and the opening and closing component is used to control the opening or closing of the feed hole.

[0007] The effect is that the agitator is used to stir the adsorbent mixture in the raw material mixing tank, and the feed pores remain open during this process. The adsorbent mixture in the raw material mixing tank can enter the capture supply pipe through the feed pores during the rotation. Since the multiple capture supply pipes have multiple distribution points in the radial direction of the raw material mixing tank, and the feed pores provide channels for adsorbent particles at different positions to enter the capture supply pipe along the axial direction of the raw material mixing tank, the diversity and uniformity of the types of adsorbent particles entering the capture supply pipe as a whole are high; when extracting adsorbent particles, the opening and closing parts close the feed pores, and the adsorbent particles that have entered the capture supply pipe cannot flow out. At this time, the suction filling cylinder and the capture supply pipe are connected to extract and sample them, thereby obtaining adsorbent particles with higher uniformity.

[0008] Preferably, the agitator includes a central axis fixed pipe and a dispersion air pipe, the central axis fixed pipe and the raw material mixing tank are coaxially fixedly connected, the dispersion air pipe is fixedly connected to the side wall of the raw material mixing tank, the inner cavity of the dispersion air pipe is connected to the inner cavity of the central axis fixed pipe, the central axis fixed pipe is connected to a nitrogen gas source, and a plurality of air injection holes are opened on the side wall of the dispersion air pipe.

[0009] Preferably, a plurality of the dispersed air pipes are provided, and the plurality of the dispersed air pipes are arranged in a circumferential array along the central axis fixed pipe, and all the jet holes are arranged in a circumferential array along the raw material mixing tank. A pulse jet pipe is fixedly connected to the dispersed air pipe and at the jet hole, and the pipe mouth of the pulse jet pipe is inclined toward the bottom and tangential direction of the raw material mixing tank.

[0010] The effect is that after the nitrogen gas source is turned on, each pulse jet tube sprays air into the mixture, and due to the arrangement of each pulse jet tube and the direction of the tube mouth, the air flow makes the mixture in the raw material mixing tank have a tendency to rotate around the raw material mixing tank, thereby achieving stirring of the mixture in the raw material mixing tank.

[0011] Preferably, there are two feeding holes on a single capturing and supplying pipe, and the opening positions of the two feeding holes are symmetrically arranged relative to the axis of the capturing and supplying pipe. The opening and closing part is an opening and closing cylinder shell, and the opening and closing cylinder shell is coaxially sleeved outside the capturing and supplying pipe. The inner wall of the opening and closing cylinder shell is in contact with the outer wall of the capturing and supplying pipe, and the circumferential width of the opening and closing cylinder shell is greater than the width of the feeding hole. The raw material mixing tank is provided with a control component for controlling the rotation of the opening and closing cylinder shell.

[0012] The effect is that when the mixture in the raw material mixing tank is stirred and rotated, various adsorbent particles can easily enter and exit the capture supply pipe. When the opening and closing cylinder shell rotates, it changes its relative position with the feed pore to realize the opening and closing control of the feed pore, thereby controlling the connectivity between the capture supply pipe and the inner cavity of the mixing cylinder, and thus enabling the capture supply pipe to capture various adsorbent particles in the capture supply pipe.

[0013] Preferably, the control component includes a control cylinder, a control gear and a control rack, the control gear and the opening and closing cylinder shell are coaxially fixedly connected, the control rack and the raw material mixing tank are slidingly connected, the control gear and the control rack are meshed, the control cylinder and the raw material mixing tank are fixedly connected, and the piston rod of the control cylinder is fixedly connected to the control rack.

[0014] The effect is that the control rack moves to drive the control gear to rotate, thereby driving the opening and closing cylinder shell to rotate, and then controlling the rotation of each opening and closing cylinder shell to achieve the opening and closing control of the material passing hole.

[0015] Preferably, a relay mixing bin is fixedly connected to the raw material mixing tank, and the relay mixing bin is simultaneously connected to one end of all the capture supply pipes. A docking hole is provided on the relay mixing bin, and the docking hole is used to dock with the barrel mouth of the suction filling barrel. A closed valve is fixedly connected to the hole wall of the docking hole. In a natural state, the closed valve blocks the docking hole. An air pressure balance pipe is fixedly connected and connected to the relay mixing bin, and a one-way valve is provided on the air pressure balance pipe. The one-way valve allows the gas in the relay mixing bin to flow to the outside of the relay mixing bin.

[0016] The effect is that during the operation of the agitator, the airflow ejected from the pulse jet tube enters the relay mixing bin through the capture supply pipe, and is finally discharged out of the raw material mixing tank through the air pressure balance pipe, maintaining the air pressure balance in the raw material mixing tank and the relay mixing bin.

[0017] Preferably, a propulsion piston is slidably provided in the capture supply pipe. When the feed hole is open, the propulsion piston is located at the end of the capture supply pipe away from the relay mixing bin. The raw material mixing tank is provided with a drive assembly for driving the propulsion piston to move.

[0018] The effect is that when a certain amount of adsorbent raw materials are collected in the capture supply pipe, the opening and closing cylinder shell closes the material passing pore, and then the piston is pushed to move, pushing the mixture in the capture supply pipe into the relay mixing bin as a whole, and remaining at the connection point between the relay mixing bin and the capture supply pipe. The materials in different capture supply pipes contact and mix with each other in the relay mixing bin, so that the uniformity of the adsorbent mixture in the relay mixing bin is relatively high.

[0019] Preferably, the driving assembly includes a storage cylinder, an air supply and exhaust pipe and a plurality of pressure sleeves. The storage cylinder and the raw material mixing tank are fixedly connected and coaxially connected to the end of the capture supply pipe away from the relay mixing bin. The multiple pressure sleeves are sequentially sleeved on each other, and the adjacent pressure sleeves slide axially with each other. The pressure sleeves located at the two ends are respectively fixedly connected to the inner end wall of the storage cylinder and the thrust piston. The air supply and exhaust pipe is connected to the inner cavity of the pressure sleeve, and the end of the air supply and exhaust pipe away from the pressure sleeve is connected to a pressure gas source.

[0020] The effect is that after the air supply pipe injects gas into the pressure sleeve, the air pressure in the pressure sleeve increases, and the pressure sleeves that are nested with each other have a tendency to stretch as a whole, thereby pushing the propulsion piston to move closer to the relay mixing chamber. When negative pressure is generated in the air supply pipe, the air pressure in the pressure sleeve decreases, and the pressure sleeves that are nested with each other have a tendency to contract as a whole, thereby pulling the propulsion piston away from the relay mixing chamber. Since the pressure sleeves are nested with each other, they occupy a smaller volume in the overall contracted state.

[0021] Preferably, the axes of the suction filling cylinder and the docking hole are both vertical, a discharge piston is provided in the relay mixing bin for sliding in the horizontal direction, a discharge cylinder for driving the discharge piston to move is fixedly provided on the raw material mixing tank, and the docking hole is located at the top of the end of the relay mixing bin away from the discharge cylinder.

[0022] Preferably, the lower end of the suction filling cylinder is coaxially fixedly connected and communicated with a matching cannula, and the end of the suction piston is coaxially fixedly connected with a matching core rod that can be inserted into the matching cannula. When the suction filling cylinder and the docking hole are docked, the matching cannula passes through the docking hole and is inserted into the relay mixing bin, and the opposite side walls of the matching cannula can be simultaneously abutted against the inner end wall of the relay mixing bin and the discharge piston.

[0023] The effect is that after the suction filling cylinder is docked with the relay mixing chamber through the matching cannula, the movement of the discharge piston can push the mixture in the relay mixing chamber toward the matching cannula, so that most of the adsorbent mixture in the relay mixing chamber is sucked up by the suction filling cylinder.

[0024] By adopting the above technical solution, the beneficial effects of the present invention are:

[0025] The present invention uses an agitator to stir the mixture in the raw material mixing tank by means of air flow. Since the central axis fixed pipe and the dispersion air pipe are both fixed, the capture supply pipe can be located closer to the center of the raw material mixing tank to collect the adsorbent mixture there. The adsorbent mixture collected by the capture supply pipe as a whole has a high uniformity. Moreover, due to the advancement piston, the discharge piston and the matching cannula, the adsorbent mixture collected by the capture supply pipe can be extracted by the suction filling cylinder more thoroughly with less residue. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Schematic diagram of the overall structure of a filling device for a blood purification adsorbent according to an embodiment of the present invention.

[0027] Figure 2 Schematic diagram of the structure of the agitator in an embodiment of the present invention.

[0028] Figure 3 Schematic diagram of the structure of the supply pipe and the propulsion piston in an embodiment of the present invention.

[0029] Figure 4 It is a structural diagram illustrating the working principle of the control component in an embodiment of the present invention.

[0030] Figure 5 It is a structural diagram illustrating the working principle of the drive assembly in an embodiment of the present invention.

[0031] Figure 6 It is a cross-sectional schematic diagram of the internal structure of the relay mixing bin in an embodiment of the present invention.

[0032] Figure 7 It is a structural schematic diagram showing the suction cylinder and the relay mixing chamber about to be matched in an embodiment of the present invention.

[0033] Reference numerals:

[0034] 1. Raw material mixing tank; 11. Relay mixing chamber; 111. Docking hole; 112. Closing valve; 12. Air pressure balance pipe; 121. One-way valve; 13. Discharge piston; 14. Discharge cylinder; 2. Agitator; 21. Central axis fixed pipe; 22. Dispersion air pipe; 23. Jet hole; 24. Pulse jet pipe; 3. Capture supply pipe; 31. Feeding hole; 32. Opening and closing shell; 33. Control assembly; 331. Control cylinder; 332. Control gear ; 333. Control rack; 34. Push piston; 35. Drive assembly; 351. Storage cylinder; 352. Air supply pipe; 353. Pressure sleeve; 4. Transfer mechanism; 41. Suction filling cylinder; 411. Matching cannula; 42. Suction piston; 421. Matching core rod; 43. Moving assembly; 431. Transverse slide; 432. Vertical slide; 433. Transverse slider; 434. Vertical slider; 435. Suction cylinder; 5. Adsorption column shell. DETAILED DESCRIPTION

[0035] The following combination Figures 1 to 7 The invention describes a blood purification adsorbent filling device.

[0036] This embodiment discloses a blood purification adsorbent filling device, such as Figure 1 As shown, the apparatus comprises a raw material mixing tank 1 and a transfer mechanism 4. The raw material mixing tank 1 is provided with an agitator 2 and a collection and supply pipe 3. The raw material mixing tank 1 contains a mixture of various adsorbent particles and water, and the agitator 2 is used to agitate the mixture. The collection and supply pipe 3 is located within the raw material mixing tank 1, and its inner cavity can communicate with the inner cavity of the raw material mixing tank 1. The transfer mechanism 4 includes a moving assembly 43 and a suction and filling cylinder 41. The moving assembly 43 is used to control the movement of the suction and filling cylinder 41. The suction and filling cylinder 41 can communicate with the collection and supply pipe 3 to extract the mixture within the raw material mixing tank 1 through the cylinder.

[0037] like Figure 1 and Figure 2As shown, the raw material mixing tank 1 is cylindrical with a vertical axis. The agitator 2 includes a central fixed pipe 21 and a dispersion air pipe 22. The central fixed pipe 21 is coaxially fixedly connected to the raw material mixing tank 1. The dispersion air pipe 22 is fixedly connected to the side wall of the raw material mixing tank 1. The inner cavity of the dispersion air pipe 22 communicates with the inner cavity of the central fixed pipe 21. The central fixed pipe 21 is externally connected to a nitrogen gas source (not shown in the figure). There are three dispersion air pipes 22 arranged in a circumferential array along the central fixed pipe 21. Each dispersion air pipe 22 has a plurality of air jet holes 23 formed in the side wall. All air jet holes 23 are arranged in a circumferential array along the raw material mixing tank 1. A pulse jet pipe 24 is fixedly connected to the dispersion air pipe 22 and at the air jet hole 23. The nozzle of the pulse jet pipe 24 is inclined downward and tangentially to the raw material mixing tank 1. After the nitrogen gas source is turned on, each pulse jet tube 24 sprays air into the mixture, and the air flow enables the mixture therein to rotate circumferentially around the raw material mixing tank 1, thereby achieving stirring of the mixture in the raw material mixing tank 1. At the same time, the air flow sprayed by the pulse jet tube 24 has a tendency to move vertically, so that the adsorbent particles in the raw material mixing tank 1 are more evenly distributed in the horizontal and vertical directions.

[0038] like Figure 1 、 Figure 3 and Figure 4 As shown, the capture and supply pipe 3 is fixedly connected to the inner wall of the raw material mixing tank 1. In this embodiment, there are two capture and supply pipes 3. The arrangement direction of the two capture and supply pipes 3 is radial to the raw material mixing tank 1. The length direction of the capture and supply pipes 3 is parallel to the axial direction of the raw material mixing tank 1. One capture and supply pipe 3 is located between the pulse jet pipe 24 and the central fixed pipe 21, and the other capture and supply pipe 3 is located between the pulse jet pipe 24 and the inner wall of the raw material mixing tank 1. A feed hole 31 is provided on the wall of the capture and supply pipe 3. The length direction of the feed hole 31 is consistent with the length direction of the capture and supply pipe 3. The inner cavity of the capture and supply pipe 3 is connected to the internal space of the raw material mixing tank 1 through the feed hole 31. There are two feed holes 31 on a single capture and supply pipe 3. The two feed holes 31 are located on opposite sides of the radius of the raw material mixing tank 1 where the axis of the capture and supply pipe 3 is located. That is, the adsorbent mixture rotating in the raw material mixing tank 1 can easily enter and exit the capture and supply pipe 3.

[0039] like Figure 3 and Figure 4As shown, the capture and supply pipe 3 is movably provided with an opening and closing member, which is used to control the opening or closing of the material passage aperture 31. The opening and closing member is an opening and closing cylinder shell 32, which is coaxially sleeved on the outside of the capture and supply pipe 3, and the inner wall of the opening and closing cylinder shell 32 contacts the outer wall of the capture and supply pipe 3. The circumferential width of the opening and closing cylinder shell 32 is greater than the width of the feed hole 31. The opening and closing cylinder shell 32 is two concentric and oppositely arranged arc plates, and the axis of the arc plate is the axis of the capture and supply pipe 3; in the axial projection of the capture and supply pipe 3, the angular span of a single feed hole 31 is 55°, and the angular span of a single arc plate of the opening and closing cylinder shell 32 is 90°, so that the opening and closing cylinder shell 32 can achieve complete opening or closing of the feed hole 31 during rotation. When the opening and closing cylinder shell 32 closes the feed hole 31, the inner cavity of the capture and supply pipe 3 and the internal space of the raw material mixing tank 1 are relatively isolated, and no material exchange can occur between the two.

[0040] like Figure 1 、 Figure 3 and Figure 4 As shown, the raw material mixing tank 1 is provided with a control assembly 33 for controlling the rotation of the opening and closing cylinder housing 32. The control assembly 33 includes a control cylinder 331, a control gear 332, and a control rack 333. The number of control gears 332 matches the number of opening and closing cylinder housings 32, and the two correspond one to one. A single control gear 332 is coaxially fixedly connected to the upper end of an opening and closing cylinder housing 32. The control rack 333 is slidably connected to the raw material mixing tank 1, and the sliding direction is parallel to the arrangement direction of the two capture and supply pipes 3. The cylinder body of the control cylinder 331 is located outside the raw material mixing tank 1 and is fixedly connected to the raw material mixing tank 1. The piston rod of the control cylinder 331 extends into the raw material mixing tank 1 and is fixedly connected to the control rack 333. The control rack 333 simultaneously meshes with the two control gears 332, that is, the control cylinder 331 can control the synchronous rotation of the two opening and closing cylinder housings 32, thereby simultaneously controlling the opening or closing of the feed apertures 31 of the two capture and supply pipes 3.

[0041] like Figure 1As shown, the moving assembly 43 includes a transverse slide 431 and a vertical slide 432. The raw material mixing tank 1 and the adsorption column shell 5 for receiving adsorbent particles are respectively located below the two ends of the transverse slide 431. A transverse slider 433 is provided on the transverse slide 431 for transverse sliding. The vertical slide 432 is fixedly mounted on the transverse slider 433. A vertical slider 434 is provided on the vertical slide 432 for vertical sliding. The suction filling cylinder 41 is fixedly mounted on the vertical slider 434. The axis of the suction filling cylinder 41 is in the vertical direction. At the same time, a suction cylinder 435 is also installed on the vertical slider 434. The piston rod of the suction cylinder 435 is in the vertical direction of extension and contraction. A suction piston 42 is provided inside the suction filling cylinder 41 for sliding. The piston rod end of the suction cylinder 435 is fixedly connected to the suction piston 42. The transverse slider 433 and the vertical slider 434 are both electrically driven to slide, and together they control the movement of the suction filling cylinder 41 in a two-dimensional plane; when the suction cylinder 435 controls the movement of the suction piston 42, the lower end of the suction filling cylinder 41 can extract or squeeze out the fluid.

[0042] like Figure 1 、 Figure 6 and Figure 7 As shown, a relay mixing chamber 11 is fixedly connected to the top of the raw material mixing tank 1. The relay mixing chamber 11 is connected to the upper ends of the two capture supply pipes 3. A pressure balance pipe 12 is fixedly connected to and connected to the top of the relay mixing chamber 11. The pressure balance pipe 12 is provided with a one-way valve 121. The one-way valve 121 allows the gas in the relay mixing chamber 11 to flow out of the relay mixing chamber 11. During the operation of the agitator 2, the air flow ejected from the pulse jet pipe 24 enters the relay mixing chamber 11 through the capture supply pipe 3 and is finally discharged out of the raw material mixing tank 1 through the pressure balance pipe 12. A docking hole 111 is provided at the top of the relay mixing chamber 11. The axis of the docking hole 111 is in the vertical direction. The docking hole 111 is used to dock with the barrel mouth of the suction filling cylinder 41. After the barrel mouth of the suction filling cylinder 41 is connected to the inner cavity of the relay mixing chamber 11 through the docking hole 111, the adsorbent mixture in the capture supply pipe 3 can be extracted. A closed valve 112 made of rubber is fixedly connected to the wall of the docking hole 111. In a natural state, the closed valve 112 blocks the docking hole 111, and the gas ejected from the pulse jet tube 24 cannot change the closed state of the closed valve 112 on the docking hole 111.

[0043] like Figure 1 、 Figure 3 and Figure 5As shown, a propulsion piston 34 is slidably provided in the capture and supply pipe 3 , and the sliding direction is the length direction of the capture and supply pipe 3 . A driving assembly 35 for driving the propulsion piston 34 to move is provided on the raw material mixing tank 1 . The driving assembly 35 includes a storage cylinder 351, an air supply and exhaust pipe 352 and a plurality of pressure sleeves 353. The storage cylinder 351 is fixedly connected to the raw material mixing tank 1 and is coaxially connected to the end of the capture supply pipe 3 away from the relay mixing bin 11. Multiple pressure sleeves 353 are coaxially sleeved on each other in sequence, and adjacent pressure sleeves 353 slide axially with each other. One of the pressure sleeves 353 located at both ends is fixedly connected to the inner bottom wall of the storage cylinder 351, and the other is fixedly connected to the propulsion piston 34. In this embodiment, the number of pressure sleeves 353 is three. When the three pressure sleeves 353 are retracted to a stacked state, the propulsion piston 34 is located at the end of the capture supply pipe 3 away from the relay mixing bin 11. When the three pressure sleeves 353 are stretched to a fully expanded state, the propulsion piston 34 moves to the bottom wall of the relay mixing bin 11. The air supply pipe 352 is fixedly connected to the storage tube 351, and the air supply pipe 352 is communicated with the inner cavity of the pressure sleeve 353 fixedly connected to the storage tube 351. The air supply pipe 352 is externally connected to an air pump (not shown in the figure). The air pump serves as a pressure air source to supply and exhaust air into the pressure sleeve 353 to control the expansion and contraction of the pressure sleeve 353, thereby controlling the movement of the propulsion piston 34.

[0044] like Figure 1 、 Figure 6 and Figure 7 As shown, a discharge piston 13 is provided in the relay mixing bin 11 for sliding in the horizontal direction, and a discharge cylinder 14 for driving the discharge piston 13 to move is fixedly provided on the raw material mixing tank 1, and the docking hole 111 is located at the top of the end of the relay mixing bin 11 away from the discharge cylinder 14. The radial dimension of the suction filling cylinder 41 is larger than the diameter of the docking hole 111. The lower end of the suction filling cylinder 41 is coaxially fixedly connected to and communicates with a mating cannula 411, the diameter of which is smaller than the diameter of the docking hole 111. A mating core rod 421 is coaxially integrally formed at the end of the suction piston 42, which is insertable into the mating cannula 411. When the suction filling cylinder 41 and the docking hole 111 are aligned, the mating cannula 411 also faces the docking hole 111. The suction filling cylinder 41 then moves downward, allowing the mating cannula 411 to pass through the sealing valve 112 and be inserted into the relay mixing chamber 11. At this point, the suction filling cylinder 41 and the docking hole 111 are docked, and the suction filling cylinder 41 and the relay mixing chamber 11 are in communication. The suction piston 42 moves upward, and the discharge piston 13 moves toward the mating cannula 411, allowing the adsorbent mixture in the relay mixing chamber 11 to be drawn into the suction filling cylinder 41. The discharge piston 13 moves to the end of its stroke. At this time, the opposite side walls of the mating tube 411 can be simultaneously abutted by the inner end wall of the relay mixing chamber 11 and the discharge piston 13, and most of the adsorbent mixture in the relay mixing chamber 11 is sucked up by the suction filling cylinder 41.

[0045] The working process of this embodiment:

[0046] During filling, the raw material mixing tank 1 stirs the adsorbent mixture inside it with gas through the agitator 2. During this process, the feed pore 31 remains open, and the adsorbent mixture can enter and exit the capture supply pipe 3 at will; then the nitrogen introduction is stopped, and at the same time, the control component 33 controls the opening and closing cylinder shell 32 to close the feed pore 31, and the internal space of the capture supply pipe 3 and the raw material mixing tank 1 are relatively isolated. At this time, the propulsion piston 34 moves to push the mixture in the capture supply pipe 3 into the relay mixing bin 11, and the propulsion piston 34 stays at the connecting position between the relay mixing bin 11 and the capture supply pipe 3, so that the relay mixing bin 11 and the capture supply pipe 3 are also isolated from each other. Then the suction filling cylinder 41 moves and docks with the relay mixing bin 11, and the suction piston 42 moves to extract most of the adsorbent mixture in the relay mixing bin 11. Then the moving assembly 43 moves the suction filling cylinder 41 to the top of the adsorption column shell 5 and leaves it stationary. The adsorbent particles in the suction filling cylinder 41 gradually sink under the action of gravity, and the mixture inside it gradually separates into layers, forming an upper water layer and a lower particle layer. Most of the adsorbent particles are located in the particle layer. The suction piston 42 moves downward to discharge the particle layer from the suction filling cylinder 41 into the adsorption column shell 5. After squeezing out the particle layer, the suction filling cylinder 41 docks with the relay mixing bin 11 again. At the same time, the discharge piston 13 resets, the propulsion piston 34 resets, and the feed pore 31 opens again. The suction filling cylinder 41 discharges the water layer into the relay mixing bin 11, and finally flows into the raw material mixing tank 1. The single filling process is completed.

[0047] Although the embodiments of the present invention have been shown and described above, it can be understood that the textual descriptions and drawings of the above embodiments are exemplary and are intended to be used to explain the inventive concept of the present invention. They cannot be understood as limitations on the present invention. Those skilled in the art can change, modify, replace and modify the above embodiments within the scope of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making any creative work shall fall within the scope of protection of the present invention.

Claims

1. A filling device for a blood purification adsorbent, comprising a raw material mixing tank and a transfer mechanism, wherein the raw material mixing tank is provided with an agitator and a capture supply pipe, wherein the capture supply pipe is connected to the raw material mixing tank; the transfer mechanism comprises a moving assembly and a suction filling cylinder, wherein a suction piston is slidably provided within the suction filling cylinder; the moving assembly is used to control the movement of the suction filling cylinder, and the suction filling cylinder and the capture supply pipe are selectively connected; It is characterized by: The capture supply pipes are provided in plurality, and the plurality of capture supply pipes are arranged along the radial direction of the raw material mixing tank. The length direction of the capture supply pipes is parallel to the axial direction of the raw material mixing tank. A feeding hole is provided on the wall of the capture supply pipe, and the length direction of the feeding hole is consistent with the length direction of the capture supply pipe. The inner cavity of the capture supply pipe is connected with the inner cavity of the raw material mixing tank through the feeding hole. The capture supply pipe is movably provided with an opening and closing member, and the opening and closing member is used to control the opening or closing of the feeding hole. The agitator includes a central fixed pipe and a dispersion air pipe. The central fixed pipe is coaxially fixedly connected to the raw material mixing tank. The dispersion air pipe is fixedly connected to the side wall of the raw material mixing tank. The inner cavity of the dispersion air pipe is connected to the inner cavity of the central fixed pipe. The central fixed pipe is connected to a nitrogen gas source. A plurality of air injection holes are opened on the side wall of the dispersion air pipe. A relay mixing bin is fixedly connected to the raw material mixing tank, and the relay mixing bin is simultaneously connected to one end of all the capture and supply pipes. A docking hole is provided on the relay mixing bin, and the docking hole is used to dock with the barrel mouth of the suction filling barrel. A closed valve is fixedly connected to the hole wall of the docking hole. In a natural state, the closed valve blocks the docking hole. An air pressure balance pipe is fixedly connected and connected to the relay mixing bin. A one-way valve is provided on the air pressure balance pipe. The one-way valve allows the gas in the relay mixing bin to flow out of the relay mixing bin. A propulsion piston is slidably provided in the capture supply pipe. When the propulsion piston moves, the mixture in the capture supply pipe is pushed into the relay mixing chamber. At the same time, the propulsion piston stays at the connecting position between the relay mixing chamber and the capture supply pipe, so that the relay mixing chamber and the capture supply pipe are also isolated from each other. A pulse jet pipe is fixedly connected to the jet hole on the dispersion air pipe, and the pipe mouth of the pulse jet pipe is inclined toward the bottom of the raw material mixing tank and in a tangential direction.

2. A blood purification adsorbent filling device according to claim 1, characterized in that: There are multiple dispersed air pipes, and the multiple dispersed air pipes are arranged in a circumferential array along the central axis fixed pipe, and all the air injection holes are arranged in a circumferential array along the raw material mixing tank.

3. A blood purification adsorbent filling device according to claim 2, characterized in that: There are two feeding holes on a single capture and supply pipe, and the opening positions of the two feeding holes are symmetrically arranged relative to the axis of the capture and supply pipe. The opening and closing part is an opening and closing cylinder shell, and the opening and closing cylinder shell is coaxially sleeved outside the capture and supply pipe. The inner wall of the opening and closing cylinder shell is in contact with the outer wall of the capture and supply pipe. The circumferential width of the opening and closing cylinder shell is greater than the width of the feeding hole. The raw material mixing tank is provided with a control component for controlling the rotation of the opening and closing cylinder shell.

4. A blood purification adsorbent filling device according to claim 3, characterized in that: The control assembly includes a control cylinder, a control gear and a control rack. The control gear and the opening and closing cylinder shell are coaxially fixedly connected, the control rack and the raw material mixing tank are slidingly connected, the control gear and the control rack are meshed, the control cylinder and the raw material mixing tank are fixedly connected, and the piston rod of the control cylinder is fixedly connected to the control rack.

5. The blood purification adsorbent filling device according to claim 1, characterized in that: When the material passing aperture is open, the propulsion piston is located at one end of the capture supply pipe away from the relay mixing bin, and the raw material mixing tank is provided with a driving assembly for driving the propulsion piston to move.

6. The blood purification adsorbent filling device according to claim 5, characterized in that: The driving assembly includes a storage cylinder, an air supply and exhaust pipe and several pressure sleeves. The storage cylinder is fixedly connected to the raw material mixing tank and is coaxially connected to the end of the capture supply pipe away from the relay mixing bin. The multiple pressure sleeves are sequentially sleeved on each other, and the adjacent pressure sleeves slide axially with each other. The pressure sleeves located at the two ends are respectively fixedly connected to the inner end wall of the storage cylinder and the propulsion piston. The air supply and exhaust pipe is connected to the inner cavity of the pressure sleeve, and the end of the air supply and exhaust pipe away from the pressure sleeve is connected to a pressure gas source.

7. The blood purification adsorbent filling device according to claim 1, characterized in that: The axes of the suction filling cylinder and the docking hole are both vertical, a discharge piston is slidingly arranged in the horizontal direction in the relay mixing bin, a discharge cylinder for driving the discharge piston to move is fixedly arranged on the raw material mixing tank, and the docking hole is located at the top of the end of the relay mixing bin away from the discharge cylinder.

8. The blood purification adsorbent filling device according to claim 7, characterized in that: The lower end of the suction and filling cylinder is coaxially fixedly connected and communicated with a matching cannula, and the end of the suction piston is coaxially fixedly connected with a matching core rod that can be inserted into the matching cannula. When the suction and filling cylinder and the docking hole are docked, the matching cannula passes through the docking hole and is inserted into the relay mixing bin, and the opposite side walls of the matching cannula can be simultaneously abutted against the inner end wall of the relay mixing bin and the discharge piston.

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