Extrusion type carbon molecular sieve granulating device and granulating process thereof

Abstract

This invention discloses an extrusion-type carbon molecular sieve granulation device and its granulation process, relating to the field of carbon molecular sieve granulation technology. The device includes: an extrusion granulator and a first component mounted thereon. A discharge port is provided above the extrusion granulator, and the discharge port is connected to an extrusion chamber. A forming perforated plate is provided at the end of the extrusion chamber away from the discharge port, and the forming perforated plate is connected to the extrusion chamber. The insertion post of adapter B precisely engages with the insertion hole of adapter A, allowing the two sets of adapters to be integrated into one unit, ensuring symmetrical contact between the grinding surfaces on both sides and the blade, avoiding blade deformation caused by unilateral grinding. The combination of the oblique triangular structure of adapter A and the U-shaped insertion body enables simultaneous grinding of the blade's arc surface and both sides, and removes residual material near the blade, preventing particle agglomeration due to material adhesion during cutting, preventing particle skewing and breakage caused by blade deviation due to unilateral grinding, and improving grinding efficiency and finished product integrity.

Description

Technical Field

[0001] This invention relates to the field of carbon molecular sieve granulation technology, specifically to an extrusion-type carbon molecular sieve granulation device and its granulation process. Background Technology

[0002] Carbon molecular sieves, as porous materials with excellent adsorption properties, are widely used in gas separation, catalytic reactions, and other fields. The size uniformity, physical strength, and adsorption performance of the finished particles directly determine the application effect. Extrusion granulation has become the core technology for the large-scale production of carbon molecular sieves due to its advantages such as high forming efficiency and stable particle density. The performance of the core equipment, the extrusion carbon molecular sieve granulation device, has a decisive impact on the quality of the finished product and the production efficiency.

[0003] Existing extrusion-type carbon molecular sieve granulation equipment typically consists of basic units such as raw material conveying, extrusion molding, cutting and granulation, and material collection. Its working principle is as follows: the pretreated carbon molecular sieve mixture is pressurized in the extrusion chamber and formed into a continuous preform through a forming plate. Then, a high-speed rotating cutting blade cuts the preform into particles of a set length. However, in actual industrial production, existing equipment, limited by its structural design, has gradually revealed many technical shortcomings, making it difficult to meet the production requirements of high-quality carbon molecular sieves. Specific shortcomings are as follows:

[0004] Firstly, worn cutting blades lead to low precision and low yield of finished products.

[0005] Carbon molecular sieve mixtures contain rigid particles, which easily cause blade wear during high-speed rotation. Existing equipment lacks an effective online grinding mechanism, typically requiring manual grinding or replacement of the blades after shutdown. On the one hand, downtime for grinding shortens the continuous operating time of the equipment and reduces the production efficiency per batch; on the other hand, worn blades that are not ground in time result in insufficient cutting force, causing problems such as compression deformation, end face burrs, and cracking of the blank during cutting. The length error of finished particles generally exceeds ±1.5mm, the particle size uniformity is insufficient, and the particle breakage rate is high. Although some equipment has attempted to set up a fixed grinding structure, the grinding surface does not fit tightly with the blade, and there is no coarse and fine grinding stage design, resulting in poor recovery of blade sharpness after grinding. Moreover, blade deformation is easily caused by grinding on one side, further aggravating the dimensional deviation of the finished product.

[0006] Secondly, the lack of real-time monitoring of blade misalignment leads to poor batch stability of finished products.

[0007] During high-speed rotation, cutting blades are prone to misalignment due to factors such as equipment vibration, assembly gaps, and material impact. Existing devices generally rely on manual periodic inspections to determine the blade's position, lacking real-time monitoring and early warning mechanisms. Manual inspections suffer from response lag; by the time blade misalignment is detected, a large number of defective products with uneven lengths have already been generated, resulting in a low batch pass rate. Furthermore, manual judgment makes it difficult to quantify the degree of misalignment, relying solely on experience to adjust equipment parameters, leading to significant dimensional fluctuations and large deviations in adsorption performance between different batches. Some devices employing mechanical contact monitoring suffer from high error rates due to the susceptibility of contacts to jamming caused by material residue, and mechanical wear shortens the lifespan of monitoring components, resulting in high maintenance costs.

[0008] Therefore, this invention proposes an extrusion-type carbon molecular sieve granulation device to solve the above problems. Summary of the Invention

[0009] To address the shortcomings of existing technologies, this invention provides an extrusion-type carbon molecular sieve granulation device to solve the problems mentioned in the background section.

[0010] To achieve the above objectives, the present invention provides the following technical solution: an extrusion carbon molecular sieve granulation device, comprising: an extrusion granulator and a first component mounted thereon, wherein a feeding port is provided above the extrusion granulator, the feeding port is connected to an extrusion chamber, a forming perforated plate is provided at one end of the extrusion chamber away from the feeding port, the forming perforated plate is connected to the extrusion chamber, a cutting device is provided on the side of the forming perforated plate away from the extrusion chamber, the cutting device is composed of a rotating blade assembly and a fixed bracket, a receiving device is provided below the cutting device, and the first component includes a positioning screw threaded to one side of the cutting device;

[0011] The first component also includes a functional plate A and a functional plate B that are threadedly connected to the positioning screw. Both functional plates A and B have arc-shaped guide grooves on their symmetrical surfaces. The cross-section of the arc-shaped guide grooves is T-shaped. Slider blocks are slidably connected in both sets of arc-shaped guide grooves. Positioning holes A and B are provided on the adjacent surfaces of both sets of sliders.

[0012] Preferably, functional plates A and B are both arc-shaped plates of the same shape. Functional plates A and B are located on both sides of the blade in the cutting device. Functional plates A and B are fixedly connected to the cutting device by positioning screws. The slider is a T-shaped counterweight. An electromagnet is built into the positioning hole A. The electromagnet is connected to an external controller. Positioning holes A and B are holes of the same diameter. Positioning holes A and B are symmetrically arranged with the central axis of the slider as the center.

[0013] Preferably, the second component is used to intermittently sharpen the blade in the cutting device. The second component includes: a spring assembly fixedly connected to the positioning hole A, an adapter A fixedly connected to the side of the spring assembly away from the positioning hole A, a insertion groove opened on one side of the adapter A, a U-shaped plug body inserted and fixed in the insertion groove, and an insertion hole opened on the side of the adapter A away from the spring assembly.

[0014] Preferably, the spring assembly consists of a magnet and a spring body, the adapter A consists of a rectangular block and an oblique triangular body, the U-shaped connector is fixedly connected to the adapter A by bolts, the connector groove and the spring assembly are located on the adjacent surface of the adapter A, the side of the U-shaped connector away from the adapter A is made of fine whetstone material, the side of the oblique triangular body near the cutting device is made of coarse whetstone material, and the connector hole consists of two holes.

[0015] Preferably, the third component includes an adapter B disposed within the functional board A, wherein two plug pins are fixedly connected to the side of the adapter B near the adapter A.

[0016] Preferably, the adapter B has the same shape as the adapter A and is symmetrically disposed on the functional board A and the functional board B, respectively, and the plug-in post and the plug-in hole are plugged in and adapted.

[0017] Preferably, the fourth component includes a fixing screw threaded into the positioning hole B, an auxiliary body fixedly connected to the side of the fixing screw away from the positioning hole B, an air chamber vertically formed inside the auxiliary body, a pressure sensor disposed on the inner wall of the air chamber, a return spring fixedly connected to the bottom of the air chamber, a piston rod fixedly connected to the upper end of the return spring, an adapter plate rotatably connected to the end of the piston rod away from the return spring, and a deflection feedback body rotatably connected to the end of the adapter plate away from the piston rod.

[0018] Preferably, the auxiliary body has a U-shaped cross-section, the air pressure sensor is connected to an external controller, the deflection feedback body has a through groove in the middle of the side near the adapter plate, the adapter plate is rotatably connected to the through groove in the middle of the deflection feedback body, and the two sides of the end of the deflection feedback body away from the adapter plate are fixedly connected to columns, the deflection feedback body is rotatably connected to the auxiliary body through the columns, and the deflection feedback body is composed of a rectangular block and an inclined triangular body.

[0019] The extrusion carbon molecular sieve granulation process includes the following steps:

[0020] Step 1: Raw material pretreatment

[0021] Select carbon molecular sieve powder with uniform particle size and remove impurities and agglomerated particles;

[0022] Prepare the adhesive, lubricant, and appropriate amount of deionized water according to the specified proportions to ensure that the purity of the raw materials meets the standards.

[0023] Pre-crushing or homogenizing the mixed raw materials ensures that each component is evenly dispersed;

[0024] Step 2: Mix and knead

[0025] Add carbon molecular sieve powder, binder, and lubricant to a kneader and dry mix for 5 to 10 minutes until the mixture is uniform.

[0026] Gradually add deionized water and continue wet mixing for 20 to 30 minutes to form a uniform material mass;

[0027] Control the moisture and viscosity of the material during the kneading process to avoid cracking due to excessive dryness or sticking due to excessive moisture;

[0028] Step 3: Extrusion Molding

[0029] The kneaded material is fed into the extrusion chamber through the feeding port. The extrusion pressure and screw speed inside the extrusion chamber are adjusted to ensure that the strip has a smooth surface and uniform diameter.

[0030] A continuous cylindrical blank is extruded through a forming plate, and then cut into particles of a set length by a cutting device, which then fall into a receiving device to prevent collision and damage.

[0031] Step 4: Drying and curing

[0032] Place the wet granules in a drying oven and dry them using a gradient temperature method: first dry them at 60 to 80 degrees Celsius for 2 to 4 hours to remove surface free water;

[0033] Heat to 120 to 150 degrees Celsius and dry for 4 to 8 hours to remove internal bound water and residual solvents in the binder.

[0034] Step 5: Activation and Modification

[0035] The dried granules are fed into an activation furnace and heated to 500 to 800°C under inert gas protection.

[0036] Keep warm for 2 to 6 hours to complete the decomposition of the binder and the activation of the molecular sieve channels, thereby improving the adsorption performance;

[0037] Step Six: Processing and Testing

[0038] The finished granules are screened and graded, packaged according to the indicators, and unqualified products are returned for regranulation.

[0039] Compared with the prior art, the present invention provides an extrusion-type carbon molecular sieve granulation device, which has the following beneficial effects:

[0040] By coordinating the intermittent grinding and cutting device with the fourth component feedback cutting device, problems such as insufficient cutting force, particle length deviation, and blank extrusion deformation caused by blade wear are effectively avoided. This reduces burrs and cracks on the particle end face and provides timely warnings of blade deviation, thereby reducing the error in the uniformity of finished particle length and improving particle size uniformity. The grinding method, which combines coarse grinding of the adapter A surface with fine grinding of the U-shaped connector, avoids excessive blade wear and extends blade life. Key vulnerable components such as the U-shaped connector adopt a modular and detachable design, which facilitates quick replacement and maintenance, reducing equipment operation and maintenance costs.

[0041] Functional plates A and B are fixed to both sides of the cutting device via threaded connections, facilitating adjustment of the spacing between them according to blade specifications. This also allows for easy disassembly, providing operational space for blade replacement and equipment maintenance, thus improving maintenance efficiency. The arc-shaped guide groove has a T-shaped cross-section, which, in conjunction with the T-shaped slider counterweight structure, ensures that the slider drives the first component to move stably along the arc-shaped trajectory of the blade in the cutting device, preventing jamming or deviation during grinding and improving grinding accuracy. The slider's self-weight design provides power for the reset of components such as the U-shaped connector, simplifying the reset structure.

[0042] Using functional plates A and B of the same shape, symmetrically fitting the installation reference surface of the cutting device, the components on both sides are subjected to balanced force, avoiding uneven grinding or detection errors caused by installation eccentricity, as well as uneven cutting force caused by blade deformation, thereby improving particle density and ensuring the stability of device operation, laying the foundation for stable strength and adsorption performance after subsequent drying and activation.

[0043] The spring assembly consists of a magnet and a spring body. In the initial state, it is held in a contracted state by the magnetic attraction of the electromagnet through the positioning hole A, so that the U-shaped connector and other parts are separated from the blade. When grinding, the power is cut off and the elastic force is released to push the U-shaped connector and other parts to fit against the blade, realizing the precise switching between magnetic positioning and elastic drive. No additional power source is required, simplifying the drive structure.

[0044] The plug of adapter B is precisely inserted into the plug hole of adapter A, so that the two sets of adapters are combined into one, ensuring that the grinding surfaces on both sides are symmetrically fitted with the blade, avoiding blade deformation caused by grinding on one side; the combination of the oblique triangular structure of adapter A and the U-shaped plug enables simultaneous grinding of the blade arc surface and both sides, and removes residual material near the blade, avoiding particle agglomeration caused by material adhesion during cutting, preventing particle skewing and damage caused by blade deviation due to grinding on one side, improving grinding efficiency and finished product integrity rate;

[0045] Furthermore, the U-shaped connector is fixed to the connector slot of the adapter A by bolts. When the surface of the fine grinding stone wears down and the precision decreases, the U-shaped connector can be replaced separately without replacing the entire grinding assembly, thus reducing the cost of consumables. The arc splicing design of the U-shaped connector can also achieve a wrap-around fit to the blade, avoiding grinding dead angles.

[0046] The deflection feedback unit adopts a combination structure of rectangular blocks and inclined triangular bodies. When the blade deflects, the inclined triangular body is pushed by force to deflect, and the piston rod is pulled by the adapter plate to compress the return spring, causing the air pressure in the air chamber to change. This achieves precise conversion between mechanical deflection and air pressure signal, with short monitoring response time and improved timeliness of deflection warning. In addition, the air pressure sensor is directly connected to the external controller to collect air pressure data in the air chamber in real time. The degree of deflection is quantified by the change in air pressure, providing a basis for parameter adjustment.

[0047] The fourth component is fixed to the positioning hole B by a fixed screw threaded connection. The position of the auxiliary body can be adjusted according to the blade size to keep the deflection feedback body and the blade at the optimal detection distance and improve detection sensitivity. Attached Figure Description

[0048] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0049] Figure 2 This is a partial structural diagram of the present invention;

[0050] Figure 3 This is a partial disassembly diagram of the present invention;

[0051] Figure 4 This is a partial cross-sectional view of the present invention;

[0052] Figure 5 This is a structural diagram of the first and second components of the present invention;

[0053] Figure 6 This is a disassembled structural diagram of the first and second components of the present invention;

[0054] Figure 7 This is a structural diagram of the fourth component of the present invention;

[0055] Figure 8 This is a disassembled structural diagram of the third and fourth components of the present invention;

[0056] Figure 9 This is a partial front view of the structure of the present invention.

[0057] In the picture:

[0058] 11. Extrusion granulator; 12. Feed port; 13. Extrusion chamber; 14. Forming plate; 15. Cutting device;

[0059] 21. Positioning screw; 22. Functional plate A; 23. Functional plate B; 24. Arc-shaped guide groove; 25. Slider; 26. Positioning hole A; 27. Positioning hole B;

[0060] 31. Spring assembly; 32. Adapter A; 33. Plug slot; 34. Plug hole; 35. U-shaped plug body;

[0061] 41. Adapter B; 42. Connector pin;

[0062] 51. Fixing screw; 52. Auxiliary body; 53. Air chamber; 54. Air pressure sensor; 55. Piston rod; 56. Return spring; 57. Deflection feedback body; 58. Adapter plate. Detailed Implementation

[0063] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0064] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0065] Example

[0066] Please refer to Figures 1 to 6 As shown:

[0067] To address the problems mentioned in the technical solutions, this application provides an extrusion carbon molecular sieve granulation device, comprising: an extrusion granulator 11 and a first component mounted thereon. The extrusion granulator 11 is provided with a discharge port 12 above it, and the discharge port 12 is connected to an extrusion chamber 13. A forming perforated plate 14 is provided at one end of the extrusion chamber 13 away from the discharge port 12, and the forming perforated plate 14 is connected to the extrusion chamber 13. A cutting device 15 is provided on the side of the forming perforated plate 14 away from the extrusion chamber 13. The cutting device 15 consists of a rotating blade assembly and a fixed bracket. A receiving device is provided below the cutting device 15. The first component includes a positioning screw 21 threadedly connected to one side of the cutting device 15.

[0068] The first component also includes a functional plate A22 and a functional plate B23 threadedly connected to the positioning screw 21. Both functional plates A22 and B23 have arc-shaped guide grooves 24 on their symmetrical surfaces. The cross-section of the arc-shaped guide grooves 24 is T-shaped. Sliding blocks 25 are slidably connected in both sets of arc-shaped guide grooves 24. Positioning holes A26 and B27 are provided on the adjacent surfaces of both sets of sliding blocks 25.

[0069] Functional plates A22 and B23 are both arc-shaped plates of the same shape. Functional plates A22 and B23 are located on both sides of the blade in the cutting device 15. Functional plates A22 and B23 are fixedly connected to the cutting device 15 by positioning screws 21. The slider 25 is a T-shaped counterweight. An electromagnet is built into the positioning hole A26. The electromagnet is connected to an external controller. Positioning holes A26 and B27 are holes of the same diameter. Positioning holes A26 and B27 are symmetrically arranged with the central axis of slider 25 as the center.

[0070] The second component is used to intermittently sharpen the blade in the cutting device 15. The second component includes: a spring assembly 31 fixedly connected in the positioning hole A26, an adapter A32 fixedly connected to the side of the spring assembly 31 away from the positioning hole A26, a insertion groove 33 is provided on one side of the adapter A32, a U-shaped plug 35 is inserted and fixed in the insertion groove 33, and an insertion hole 34 is provided on the side of the adapter A32 away from the spring assembly 31.

[0071] The spring assembly 31 consists of a magnet and a spring body. The adapter A32 consists of a rectangular block and an oblique triangular body. The U-shaped connector 35 is fixedly connected to the adapter A32 by bolts. The connector groove 33 and the spring assembly 31 are located on the adjacent surface of the adapter A32. The side of the U-shaped connector 35 away from the adapter A32 is made of fine whetstone material, and the side of the oblique triangular body near the cutting device 15 is made of coarse whetstone material. The connector hole 34 consists of two holes.

[0072] The third component includes an adapter B41 disposed within the function board A22. Two plug posts 42 are fixedly connected to the side of the adapter B41 near the adapter A32. The second component is synchronously and symmetrically disposed on the function board A22, wherein the adapter A32 in the second component is replaced by the adapter B41, and the plug hole 34 is replaced by the plug post 42. The second component and the third component are used together.

[0073] Adapter B41 and adapter A32 have the same shape and are symmetrically arranged on function board A22 and function board B23 respectively. The plug-in post 42 and the plug-in hole 34 are plugged into each other.

[0074] A further embodiment: Please refer to Figures 7 to 9 As shown:

[0075] The fourth component includes a fixing screw 51 threaded into the positioning hole B27. An auxiliary body 52 is fixedly connected to the side of the fixing screw 51 away from the positioning hole B27. An air chamber 53 is vertically opened inside the auxiliary body 52. ​​A pressure sensor 54 is installed on the inner wall of the air chamber 53. A return spring 56 is fixedly connected to the bottom of the air chamber 53. A piston rod 55 is fixedly connected to the upper end of the return spring 56. An adapter plate 58 is rotatably connected to the end of the piston rod 55 away from the return spring 56. A deflection feedback body 57 is rotatably connected to the end of the adapter plate 58 away from the piston rod 55. Two sets of the fourth component are provided, located on the function board A22 and the function board B23 respectively.

[0076] The auxiliary body 52 has a U-shaped cross-section. The air pressure sensor 54 is connected to an external controller. The deflection feedback body 57 has a through groove in the middle of the side near the adapter plate 58. The adapter plate 58 is rotatably connected to the through groove in the middle of the deflection feedback body 57. The two sides of the end of the deflection feedback body 57 away from the adapter plate 58 are fixedly connected to the column rods. The deflection feedback body 57 is rotatably connected to the auxiliary body 52 through the column rods. The deflection feedback body 57 is composed of a rectangular block and an inclined triangular body.

[0077] The specific steps of the extrusion carbon molecular sieve granulation process are as follows:

[0078] Step 1: Raw material pretreatment

[0079] Select carbon molecular sieve powder with uniform particle size and remove impurities and agglomerated particles;

[0080] Prepare the adhesive, lubricant, and appropriate amount of deionized water according to the specified proportions to ensure that the purity of the raw materials meets the standards.

[0081] Pre-crushing or homogenizing the mixed raw materials ensures that each component is evenly dispersed;

[0082] Step 2: Mix and knead

[0083] Add carbon molecular sieve powder, binder, and lubricant to a kneader and dry mix for 5 to 10 minutes until the mixture is uniform.

[0084] Gradually add deionized water and continue wet mixing for 20 to 30 minutes to form a uniform material mass;

[0085] Control the moisture and viscosity of the material during the kneading process to avoid cracking due to excessive dryness or sticking due to excessive moisture;

[0086] Step 3: Extrusion Molding

[0087] The kneaded material is fed into the extrusion chamber 13 through the feed port 12. The extrusion pressure and screw speed inside the extrusion chamber 13 are adjusted to ensure that the surface of the strip is smooth and the diameter is uniform.

[0088] A continuous cylindrical blank is extruded through the forming plate 14, and then cut into particles of a set length by the cutting device 15, which fall into the receiving device to avoid collision and damage.

[0089] Step 4: Drying and curing

[0090] Place the wet granules in a drying oven and dry them using a gradient temperature method: first dry them at 60 to 80 degrees Celsius for 2 to 4 hours to remove surface free water;

[0091] Heat to 120 to 150 degrees Celsius and dry for 4 to 8 hours to remove internal bound water and residual solvents in the binder.

[0092] Step 5: Activation and Modification

[0093] The dried granules are fed into an activation furnace and heated to 500 to 800°C under inert gas protection.

[0094] Keep warm for 2 to 6 hours to complete the decomposition of the binder and the activation of the molecular sieve channels, thereby improving the adsorption performance;

[0095] Step Six: Processing and Testing

[0096] The finished granules are screened and graded, packaged according to the indicators, and unqualified products are returned for regranulation.

[0097] The second component consists of two sets located on function plate A22 and function plate B23 respectively. Function plate A22 and function plate B23 are located on both sides of the cutting blade in the cutting device 15.

[0098] When the magnet inside the positioning hole A26 is energized, it becomes magnetic and attracts the spring assembly 31, controlling the two sets of adapters A32 to separate. After the magnetism disappears, under the restoring force of the spring in the spring assembly 31, both sets of adapters A32 are pushed out, and the insertion post 42 is inserted into the insertion hole 34. The two sets of adapters A32 are then assembled into one unit. The cutting blade in the cutting device 15 is in contact with the surface of the U-shaped insertion body 35. At the same time, the coarse grinding surfaces of the two sets of adapters A32 are in contact with the sides of the cutting blade. During the rotation of the cutting blade, the arc surface of the cutting blade pushes the U-shaped insertion body 35, thereby pushing the second component to slide along the arc-shaped guide groove 24. Under the relative displacement between the second component and the cutting device 15, the blade grinding is completed. The coarse grinding of the U-shaped insertion body 35 and the fine grinding of the adapter A32 are used in combination.

[0099] When the second component is pushed to the highest point of the arc-shaped guide groove 24 by the cutting device 15, it slides down and resets along the slider 25 under its own weight. During the downward movement, the magnet in the cavity of the positioning hole A26 is energized and generates magnetism, attracting the adapter A32, causing the two sets of adapters A32 to separate. The U-shaped connector 35 and the adapter A32 are no longer in contact with the cutting tool surface in the cutting device 15, thus preparing for the next set of intermittent grinding work.

[0100] The U-shaped connector 35 is fixedly connected to the adapter A32 by bolts, which facilitates replacement when the U-shaped connector 35 is not accurate enough.

[0101] When the blade deviates during the cutting process, while the cutting device 15 is intermittently polished, the cutting device 15 is simultaneously located in the middle of the deflection feedback body 57 in the two sets of fourth components. If the cutting device 15 deviates, pressure is applied to one side of the deflection feedback body 57, causing the deflection feedback body 57 to deflect away from the cutting device 15 with the auxiliary body 52 connection as the fulcrum. The deflection of the deflection feedback body 57 pulls the adapter plate 58, which in turn pulls the piston rod 55 upward, stretching the return spring 56. The air pressure in the air chamber 53 changes, and the air pressure sensor 54 transmits the data to the external controller when the air pressure changes, providing timely feedback on the deviance of the cutting device 15 and avoiding different volumes of the carbon molecular sieve finished product.

[0102] The working principle of all the content in the above embodiments is as follows:

[0103] In the initial state, the electromagnet inside the positioning hole A26 is energized, and the two sets of adapters A32 are kept separated by magnetic attraction.

[0104] Functional plate A22 and functional plate B23 are symmetrically fixed to both sides of the rotating blade assembly in the cutting device 15 by positioning screw 21, ensuring that the arc of the two functional plates fits the mounting reference surface of the cutting device 15, and at the same time, the slider 25 slides smoothly in the arc guide groove 24.

[0105] The pretreated carbon molecular sieve mixture is fed into the extrusion chamber 13 through the feed port 12. The screw structure inside the extrusion chamber 13 rotates under power drive, applying extrusion pressure to the material. Under the extrusion pressure, the material is conveyed forward along the extrusion chamber 13 and finally extruded through the holes of the forming plate 14 to form a smooth, uniform cylindrical blank. The blank is continuously conveyed towards the cutting device 15.

[0106] The rotating blade assembly of the cutting device 15 rotates at high speed under the support of a fixed bracket to cut the continuously conveyed billet into carbon molecular sieve wet particles of uniform length. The cut particles fall directly into the receiving device below to avoid collision and damage.

[0107] After the cutting work accumulates to the set cycle, when the grinding condition is triggered, the forming plate 14 stops discharging material, the rotation speed of the cutting device 15 decreases, the external controller controls the electromagnet in the positioning hole A26 to de-energize, the magnetic attraction disappears, and the magnetic attraction state between it and the adapter A32 is released. Under the action of the restoring force of the spring group 31, the adapter A32 is pushed to move away from the spring group 31. The two sets of adapters A32 move in the center, and the plug 42 is inserted into the plug hole 34 to complete the splicing of the adapter A32. In this state, the adapter A32 is located below the end of the rotating blade in the cutting device 15 that is close to the center. At the same time as the adapter A32 is spliced, the U-shaped plug 35 inserted inside it is spliced ​​into one piece and fits against the blade in the cutting device 15, clamping the blade in the middle.

[0108] Furthermore, during the rotation of the cutting device 15, since the blade is arc-shaped, the rotation of the blade provides an outward resistance force to the U-shaped connector 35, pushing the U-shaped connector 35 and the slider 25 to move along the arc-shaped track of the arc-shaped guide groove 24. While the U-shaped connector 35 moves within the arc-shaped guide groove 24, it generates a relative displacement with the cutting device 15. This relative displacement between the cutting device 15 and the U-shaped connector 35 grinds the rotating blade in the cutting device 15. Simultaneously, the coarse friction surface of the adapter A32 grinds the surfaces on both sides of the blade, maintaining the sharpness of the blade while removing the material adhering to both sides of the blade.

[0109] While the cutting device 15 is rotating and grinding, the U-shaped connector 35 is pushed to the top of the arc-shaped guide groove 24. At this time, the cutting device 15 continues to rotate, releasing the resistance force on the U-shaped connector 35. Under the counterweight of the slider 25, the adapter A32 slides down the slider 25 to reset by its own gravity. During the reset process, the electromagnet inside the positioning hole A26 is re-energized, and the adapter A32 is separated by magnetic attraction, releasing the contact state with the blade in the cutting device 15, and preparing for the next grinding cycle.

[0110] When the grinding accuracy of the U-shaped connector 35 decreases due to long-term use, a new U-shaped connector 35 can be replaced by removing the fixing bolts to ensure grinding accuracy.

[0111] During the grinding process, since the fourth component and the second component are on the same line, if the rotating blade group in the cutting device 15 is deflected due to processing vibration or assembly error, its blade deflection will move closer to the deflection feedback body 57 on one side, giving pressure to the deflection feedback body 57 on one side, causing the deflection feedback body 57 to deflect away from the blade with the connection point with the auxiliary body 52 as the fulcrum.

[0112] The deflection of the deflection feedback body 57 pulls the piston rod 55 upward through the adapter plate 58, which increases the volume of the air chamber 53 and reduces the air pressure. The air pressure sensor 54 detects the air pressure change in real time and transmits the data to the external controller. The controller issues an offset warning in time, which makes it easier for the operator to adjust the parameters and avoid uneven length of finished particles due to blade offset.

[0113] By coordinating the intermittent grinding and cutting device 15 with the offset feedback cutting device 15 of the fourth component, problems such as insufficient cutting force, particle length deviation, and blank extrusion deformation caused by blade wear are effectively avoided, reducing burrs and cracks on the particle end face. At the same time, timely warning of blade offset reduces the error in the uniformity of finished particle length and improves particle size uniformity. The grinding method combining coarse grinding of the adapter A32 surface and fine grinding of the U-shaped plug 35 avoids excessive blade wear and extends blade life. Key vulnerable components such as the U-shaped plug 35 adopt a modular and detachable design, which facilitates quick replacement and maintenance and reduces equipment operation and maintenance costs.

[0114] Functional plates A22 and B23 are fixed to both sides of the cutting device 15 via threaded connections, facilitating the adjustment of the spacing between them according to the blade specifications. This also allows for easy disassembly, providing operational space for blade replacement and equipment maintenance, thus improving maintenance efficiency. The arc-shaped guide groove 24 has a T-shaped cross-section, which, in conjunction with the counterweight structure of the T-shaped slider 25, ensures that the slider 25 drives the first component to move stably along the arc-shaped trajectory of the blade in the cutting device 15, preventing jamming or deviation during grinding and improving grinding accuracy. The self-weight design of the slider 25 provides power for the reset of components such as the U-shaped connector 35, simplifying the reset structure.

[0115] The same shape of functional plates A22 and B23 are used to symmetrically fit the installation reference surface of the cutting device 15, so that the components on both sides are subjected to equal force. This avoids uneven grinding or detection errors caused by installation eccentricity, as well as uneven cutting force caused by blade deformation. It improves particle density and ensures the stability of device operation, laying the foundation for the stability of strength and adsorption performance after subsequent drying and activation.

[0116] The spring assembly 31 consists of a magnet and a spring body. In the initial state, it is held in a contracted state by the magnetic attraction of the electromagnet through the positioning hole A26, so that the U-shaped connector 35 and the like are separated from the blade. When grinding, the power is cut off and the elastic force is released to push the U-shaped connector 35 and the like to fit against the blade, realizing the precise switching between magnetic positioning and elastic drive. No additional power source is required, simplifying the drive structure.

[0117] The insertion post 42 of adapter B41 is precisely inserted into the insertion hole 34 of adapter A32, so that the two sets of adapters are combined into one, ensuring that the grinding surfaces on both sides are symmetrically fitted with the blade, avoiding blade deformation caused by grinding on one side; the combination of the oblique triangular structure of adapter A32 and the U-shaped insertion body 35 enables simultaneous grinding of the blade arc surface and both sides, and removes residual material near the blade, avoiding particle agglomeration caused by material adhesion during cutting, preventing particle skewing and damage caused by blade deviation due to grinding on one side, improving grinding efficiency and finished product integrity rate;

[0118] Furthermore, the U-shaped connector 35 is fixed in the connector slot 33 of the adapter A32 by bolts. When the surface of the fine grinding stone wears down and the precision decreases, the U-shaped connector 35 can be replaced separately without replacing the entire grinding assembly, thus reducing the cost of consumables. The arc splicing design of the U-shaped connector 35 can also achieve a wrap-around fit to the blade, avoiding grinding dead angles.

[0119] The deflection feedback body 57 adopts a combination structure of rectangular block and inclined triangular body. When the blade deflects, it is pushed by the inclined triangular body to deflect. The piston rod 55 is pulled by the adapter plate 58 to compress the return spring 56, so as to change the air pressure in the air chamber 53. This realizes the accurate conversion between mechanical deflection and air pressure signal, and the monitoring response time is short, which improves the timeliness of deflection warning. In addition, the air pressure sensor 54 is directly connected to the external controller to collect the air pressure data of the air chamber 53 in real time. The degree of deflection is quantified by the change in air pressure, which provides a basis for parameter adjustment.

[0120] The fourth component is fixed to the positioning hole B27 by a fixed screw 51. The position of the auxiliary body 52 can be adjusted according to the blade size to keep the deflection feedback body 57 and the blade at the optimal monitoring distance and improve the monitoring sensitivity.

[0121] Please refer to the above work process. Figures 1 to 9 .

[0122] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0123] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An extrusion-type carbon molecular sieve granulation device, comprising: An extrusion granulator (11) and a first component mounted thereon, wherein a discharge port (12) is provided above the extrusion granulator (11), the discharge port (12) is connected to an extrusion chamber (13), a forming orifice plate (14) is provided at one end of the extrusion chamber (13) away from the discharge port (12), the forming orifice plate (14) is connected to the extrusion chamber (13), a cutting device (15) is provided on the side of the forming orifice plate (14) away from the extrusion chamber (13), the cutting device (15) is composed of a rotating blade assembly and a fixed bracket, and a receiving device is provided below the cutting device (15), characterized in that: the first component includes a positioning screw (21) threadedly connected to one side of the cutting device (15). The first component also includes a functional plate A (22) and a functional plate B (23) threadedly connected to the positioning screw (21). Both the functional plate A (22) and the functional plate B (23) have arc-shaped guide grooves (24) on their symmetrical surfaces. The cross-section of the arc-shaped guide grooves (24) is T-shaped. Both sets of arc-shaped guide grooves (24) are slidably connected to sliders (25). The adjacent surfaces of both sets of sliders (25) are provided with positioning holes A (26) and B (27). Functional plate A (22) and functional plate B (23) are both arc-shaped plates of the same shape. Functional plate A (22) and functional plate B (23) are located on both sides of the blade in the cutting device (15). Functional plate A (22) and functional plate B (23) are fixedly connected to the cutting device (15) by positioning screw (21). The slider (25) is a T-shaped counterweight. An electromagnet is built into the positioning hole A (26). The electromagnet is connected to an external controller. The positioning hole A (26) and positioning hole B (27) are holes of the same diameter. The positioning hole A (26) and positioning hole B (27) are symmetrically arranged with the central axis of the slider (25) as the center. The second component is used to intermittently sharpen the blade in the cutting device (15). The second component includes: a spring assembly (31) fixedly connected in the positioning hole A (26), an adapter A (32) fixedly connected to the side of the spring assembly (31) away from the positioning hole A (26), a plug groove (33) is provided on one side of the adapter A (32), a U-shaped plug body (35) is inserted and fixed in the plug groove (33), and a plug hole (34) is provided on the side of the adapter A (32) away from the spring assembly (31). The spring assembly (31) is composed of a magnet and a spring body. The adapter A (32) is composed of a rectangular block and an oblique triangle. The U-shaped connector (35) is fixedly connected to the adapter A (32) by bolts. The connector groove (33) and the spring assembly (31) are located on the adjacent surface of the adapter A (32). The side of the U-shaped connector (35) away from the adapter A (32) is made of fine whetstone material, and the side of the oblique triangle close to the cutting device (15) is made of coarse whetstone material. The connector hole (34) is composed of two holes. The third component includes an adapter B (41) disposed in the functional board A (22), wherein two plug posts (42) are fixedly connected to the side of the adapter B (41) near the adapter A (32). The adapter B (41) and adapter A (32) have the same shape and are symmetrically arranged on function plate A (22) and function plate B (23) respectively. The plug-in post (42) is plugged into the plug-in hole (34).

2. The extrusion-type carbon molecular sieve granulation device according to claim 1, characterized in that: The fourth component includes a fixing screw (51) threaded into the positioning hole B (27). An auxiliary body (52) is fixedly connected to the side of the fixing screw (51) away from the positioning hole B (27). An air chamber (53) is vertically opened inside the auxiliary body (52). A pressure sensor (54) is provided on the inner wall of the air chamber (53). A reset spring (56) is fixedly connected to the bottom of the air chamber (53). A piston rod (55) is fixedly connected to the upper end of the reset spring (56). An adapter plate (58) is rotatably connected to the end of the piston rod (55) away from the reset spring (56). A deflection feedback body (57) is rotatably connected to the end of the adapter plate (58) away from the piston rod (55).

3. The extrusion-type carbon molecular sieve granulation device according to claim 2, characterized in that: The auxiliary body (52) has a U-shaped cross section. The air pressure sensor (54) is connected to an external controller. The deflection feedback body (57) has a through groove in the middle of the side near the adapter plate (58). The adapter plate (58) is rotatably connected to the through groove in the middle of the deflection feedback body (57). The two sides of the deflection feedback body (57) away from the adapter plate (58) are fixedly connected to the column rods. The deflection feedback body (57) is rotatably connected to the auxiliary body (52) through the column rods. The deflection feedback body (57) is composed of a rectangular block and an inclined triangular body.

4. An extrusion carbon molecular sieve granulation process, applied to an extrusion carbon molecular sieve granulation device according to any one of claims 1-3, characterized in that: Includes the following steps: Step 1: Raw material pretreatment Select carbon molecular sieve powder with uniform particle size and remove impurities and agglomerated particles; Prepare the adhesive, lubricant, and appropriate amount of deionized water according to the specified proportions to ensure that the purity of the raw materials meets the standards. Pre-crushing or homogenizing the mixed raw materials ensures that each component is evenly dispersed; Step 2: Mix and knead Add carbon molecular sieve powder, binder, and lubricant to a kneader and dry mix for 5 to 10 minutes until the mixture is uniform. Gradually add deionized water and continue wet mixing for 20 to 30 minutes to form a uniform material mass; Control the moisture and viscosity of the material during the kneading process to avoid cracking due to excessive dryness or sticking due to excessive moisture; Step 3: Extrusion Molding The kneaded material is fed into the extrusion chamber (13) through the feed port (12). The extrusion pressure and screw speed inside the extrusion chamber (13) are adjusted to ensure that the surface of the strip is smooth and the diameter is uniform. A continuous cylindrical blank is extruded through the forming plate (14), and then cut into particles of a set length by the cutting device (15) and dropped into the receiving device to avoid collision and damage. Step 4: Drying and curing Place the wet granules in a drying oven and dry them using a gradient temperature method: first dry them at 60 to 80 degrees Celsius for 2 to 4 hours to remove surface free water; Heat to 120 to 150 degrees Celsius and dry for 4 to 8 hours to remove internal bound water and residual solvents in the binder. Step 5: Activation and Modification The dried granules are fed into an activation furnace and heated to 500 to 800°C under inert gas protection. Keep warm for 2 to 6 hours to complete the decomposition of the binder and the activation of the molecular sieve channels, thereby improving the adsorption performance; Step Six: Processing and Testing The finished granules are screened and graded, packaged according to the indicators, and unqualified products are returned for regranulation.

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