Granulation equipment for hydrophilic resin rubber blocks

Abstract

The utility model provides granulation equipment for hydrophilic resin rubber blocks, and belongs to the technical field of hydrophilic resin granulation. Aiming at the problem that the improvement cost of spiral granulation equipment for hydrophilic resin rubber blocks is relatively high, the utility model provides the granulation equipment for the hydrophilic resin rubber blocks, which comprises a spiral granulator and a discharging device, the spiral granulator comprises an equal-diameter conveying cavity and a conveying screw rod; the discharging device comprises a discharging barrel, a cutter and a pore plate, the size of the section of an inner cavity of the discharging barrel is reduced in the discharging direction, the feeding end of the discharging barrel is communicated with the discharging end of the equal-diameter conveying cavity, the cutter and the pore plate sequentially cover the discharging end of the discharging barrel in the discharging direction, an avoiding hole is formed in the pore plate, and the cutter is connected with the driving mechanism through the avoiding hole. According to the spiral granulator, an existing spiral granulator can be conveniently transformed, the cost is low, the hydrophilic resin rubber blocks are gradually pressurized in the discharging direction through the discharging barrel of the discharging device, and therefore the hydrophilic resin granulation quality is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hydrophilic resin granulation, in particular to a granulation equipment for hydrophilic resin lumps. BACKGROUND

[0002] Hydrophilic resin is a new type of functional polymer material, which can absorb several hundred times or even several thousand times of its own mass of water, and has good water retention capacity. Under pressure, it does not dehydrate or dehydrates very little. After drying, the material after water absorption can still recover its water absorption capacity and can be used multiple times. In addition, hydrophilic resin also has a three-dimensional space network structure, which is insoluble in water and organic solvents, has ammonia absorption, urine absorption, blood absorption and organic drug absorption, and has good fertilizer and drug release performance. Therefore, hydrophilic resin has been widely used in agriculture, forestry, horticulture, physiology, health, food, civil construction, daily chemical industry, health care, desert reclamation, and coal mine fire prevention.

[0003] The preparation of hydrophilic resin usually goes through the process steps of reaction liquid preparation, gel molding, cutting and final granulation. Among them, the granulation usually adopts a spiral granulator to extrude and cut the batch of hydrophilic resin lumps into granules. However, the hydrophilic resin particles formed by the conventional spiral granulator extrusion molding are prone to breakage and crushing, and have poor quality.

[0004] Similar problems also occur in other technical fields, and corresponding improvements have been made. For example, a granular feed extrusion type granulation device is disclosed in Chinese Patent Application No. CN211436120U, published on September 8, 2020, which belongs to feed processing equipment and includes a base assembly, an extrusion assembly and a cutting assembly. The extrusion assembly includes an extrusion cylinder, an extrusion screw arranged inside the extrusion cylinder, and a sudden change thread groove arranged on the outer surface of the extrusion screw. The extrusion screw has a sudden change thread groove arranged on the outer surface. During the conveying, extruding and molding process of the feed material to be processed along the thread ridge on the extrusion screw, the pressure of the sudden change thread groove on the feed material to be processed gradually increases as the thread narrows and becomes shallower, ensuring that the binding force of the granulated feed is relatively firm, and preventing the feed particles from breaking and crushing during storage and transportation. The disadvantage of this scheme is that the spiral granulator is modified by replacing the screw, which is costly. TECHNICAL FIELD

[0005] The application aims to solve the problem of high modification cost of the existing spiral granulating equipment for hydrophilic resin lumps in the prior art. Therefore, the application provides a granulating equipment for hydrophilic resin lumps, which is externally connected to the discharge port of the spiral granulator through the discharge device, is convenient for modification of the existing spiral granulator, has low cost, and realizes gradual pressurization of the hydrophilic resin lumps along the discharge direction through the discharge barrel of the discharge device, thereby improving the granulating quality of the hydrophilic resin.

[0006] The application provides a granulating equipment for hydrophilic resin lumps, which comprises a spiral granulator and a discharge device arranged at the discharge port of the spiral granulator.

[0007] The spiral granulator comprises an equal-diameter conveying cavity and a conveying screw rod arranged in the equal-diameter conveying cavity.

[0008] The discharge device comprises a discharge barrel, a cutter, and a perforated plate. The inner cavity of the discharge barrel is reduced in size along the discharge direction, and the feeding end of the discharge barrel is in communication with the discharge end of the equal-diameter conveying cavity. The cutter and the perforated plate cover the discharge end of the discharge barrel in sequence along the discharge direction, and the perforated plate is provided with a clearance hole. The cutter is connected to the driving mechanism through the clearance hole.

[0009] The above technical solution is adopted, the discharge device is externally connected to the discharge port of the spiral granulator, which is convenient for modification of the existing spiral granulator, and the internal modification of the spiral granulator is replaced by external modification, which has low cost. The discharge barrel of the discharge device realizes gradual pressurization of the hydrophilic resin lumps along the discharge direction, thereby improving the granulating quality of the hydrophilic resin. Meanwhile, the cutter is connected to the driving mechanism through the clearance hole of the perforated plate, which has simple structure, reliable driving, and enables the driving mechanism to be arranged outside the discharge device, thereby controlling the volume and weight of the discharge device, facilitating the connection of the discharge device with the spiral granulator, and facilitating the maintenance of the discharge device and the driving mechanism.

[0010] In some embodiments, the inner wall of the discharge barrel is provided with a plurality of through grooves along the discharge direction, and the plurality of through grooves are uniformly distributed along the circumference of the discharge barrel.

[0011] The above technical solution is adopted, and the through grooves can improve the flow efficiency and stability of the hydrophilic resin in the discharge barrel along the discharge direction, thereby ensuring the granulating quality.

[0012] In some embodiments, the perforated plate and the cutter are detachably connected to the discharge barrel.

[0013] The above technical solution is adopted, which facilitates the replacement and maintenance of the perforated plate and the cutter, meets the granulating requirements, and ensures the granulating quality.

[0014] In some embodiments, the hole plate and the cutter are rotationally connected, the hole plate edge is connected with the discharge cylinder through a pressing ring seat, and the pressing ring seat and the discharge cylinder are connected through bolts;

[0015] The cutter is a rotary cutter, and an output shaft of the driving mechanism is connected with the cutter through the avoiding hole of the hole plate and used to drive the cutter to rotate to realize cutting.

[0016] In some embodiments, the hole plate edge is provided with a limiting groove, the pressing ring seat or the end face of the discharge cylinder is provided with a limiting piece matched with the limiting groove, and the limiting groove and the limiting piece are matched to prevent the hole plate from rotating.

[0017] In some embodiments, the output shaft of the driving mechanism is connected with a support seat, and the support seat and the discharge end of the discharge cylinder have a first distance.

[0018] In some embodiments, the feeding end of the discharge cylinder is detachably connected with the discharge end of the constant-diameter conveying cavity.

[0019] In some embodiments, the conveying screw is arranged with a first thread groove and a second thread groove in the discharging direction, and the pitch of the first thread groove is greater than the pitch of the second thread groove.

[0020] In some embodiments, the constant-diameter conveying cavity has a rubber block feeding port and a dispersant feeding port, the rubber block feeding port is arranged corresponding to the first thread groove, and the dispersant feeding port is arranged corresponding to the second thread groove.

[0021] Other features and corresponding advantages of the present application are described in the latter part of the specification, and it should be understood that at least part of the advantages become apparent from the description in the specification. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a spiral granulator of the prior art;

[0023] Figure 2 It is a structural schematic diagram of the present application;

[0024] Figure 3 It is a partially enlarged structural schematic diagram of the present application;

[0025] Figure 4 It is a sectional view schematic diagram of the hole plate position of the present application;

[0026] Figure 5 It is a sectional view schematic diagram of the cutter position of the present application;

[0027] Figure 6 It is a sectional view schematic diagram of the discharge cylinder position of the present application.

[0028] BRIEF DESCRIPTION OF DRAWINGS

[0029] 1. Spiral granulator; 110, constant diameter conveying chamber; 111, rubber block feeding port; 112, dispersant feeding port; 120, conveying screw; 130, motor; 140, speed reducer unit;

[0030] 2. Discharging device; 210, discharging cylinder; 211, through slot; 220, cutter; 230, aperture plate; 231, avoidance hole; 232, limiting slot; 240, pressing ring seat;

[0031] 3. Driving mechanism; 31, output shaft; 32, support seat. DETAILED DESCRIPTION

[0032] The advantages and effects of the present application can be easily understood by those skilled in the art from the content disclosed in the present specification. Although the present application will be described in conjunction with the preferred embodiments, the features of the present application are not limited to the embodiments. On the contrary, the purpose of describing the present application in conjunction with the embodiments is to cover other alternatives or modifications which can be extended based on the claims of the present application. In order to provide a thorough understanding of the present application, many specific details will be included in the following description. The present application can also be implemented without using these details. In addition, in order to avoid confusion or ambiguity of the present application, some specific details will be omitted in the description. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.

[0033] It should be noted that in the present specification, similar reference numbers and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0034] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated, therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more features. In the description of the present application, unless otherwise specified, the meaning of "multiple" is two or more. Unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0035] Please refer to Figure 1 , Figure 1 is a structural schematic diagram of a conventional spiral granulator 1.

[0036] The conventional spiral granulator 1 mainly includes a conveying cavity and a conveying screw 120 arranged in the conveying cavity, and most of the conveying cavities are equal-diameter cylindrical, that is, equal-diameter conveying cavity 110, and the conveying screw 120 is usually designed according to the material properties and requirements to realize different degrees of compression of the material according to the pitch and screw groove depth, at the same time, the discharge port of the conveying cavity is provided with a cutter 220 and a perforated plate 230 to realize granulation, and the cutter 220 and the perforated plate 230 are usually detachably connected with the conveying cavity to realize replacement and maintenance.

[0037] However, the current spiral granulator 1 is not suitable for hydrophilic resin block granulation, and the applicant finds that the hydrophilic resin particles prepared by using the conventional spiral granulator 1 as shown in Figure 1 are easy to break and have poor quality, and solving this problem requires further compression of the material, that is, the hydrophilic resin block during granulation, and if the screw is modified by using conventional design, the cost is high.

[0038] Please refer to Figures 2-6 , Figure 2 is a structural schematic diagram of the present application; Figure 3 is a partially enlarged structural schematic diagram of the present application; Figure 4 is a cross-sectional view of the position of the perforated plate 230 of the present application; Figure 5A sectional view of the cutter 220 position of the present application; Figure 6 A sectional view of the discharge cylinder 210 position of the present application.

[0039] The embodiment of the present application provides a granulating device for hydrophilic resin rubber mass, which comprises a spiral granulator 1 and a discharge device 2 arranged at the discharge port of the spiral granulator 1. The discharge device 2 is externally connected to the discharge port of the spiral granulator 1, so that the conventional spiral granulator 1 is modified, and the assembly is convenient and the cost is low.

[0040] In one embodiment, the spiral granulator 1 comprises an equal-diameter conveying cavity 110 and a conveying screw 120 arranged in the equal-diameter conveying cavity 110.

[0041] It can be understood that the spiral granulator 1 further comprises a motor 130 and a speed reducer set 140, so as to provide power for the conveying screw 120.

[0042] In one embodiment, the discharge device 2 comprises a discharge cylinder 210, a cutter 220 and a perforated plate 230. The inner cavity of the discharge cylinder 210 is reduced in size along the discharge direction, i.e. the direction indicated by the arrow a, that is, the discharge cylinder 210 forms a pressure working cavity through the size head, and the feeding end of the discharge cylinder 210 is in communication with the discharge end of the equal-diameter conveying cavity 110, so that the hydrophilic resin rubber mass is gradually pressurized along the discharge direction through the discharge cylinder 210 of the discharge device 2, and the material entering the discharge cylinder 210 can be uniformly compressed on the larger section of the discharge cylinder 210 relative to the conveying screw 120, thereby improving the granulation quality of the hydrophilic resin.

[0043] In one embodiment, the cutter 220 and the perforated plate 230 cover the discharge end of the discharge cylinder 210 in sequence along the discharge direction, and the perforated plate 230 is provided with a relief hole 231, and the cutter 220 is connected with the driving mechanism 3 through the relief hole 231, that is, the cutter 220 is connected with the driving mechanism 3 through the relief hole 231 of the perforated plate 230, which has a simple structure, reliable driving, and enables the driving mechanism 3 to be arranged outside the discharge device 2, facilitating manufacturing and assembly, further reducing cost, and also enabling the volume and weight of the discharge device 2 to be controlled, facilitating connection of the discharge device 2 with the spiral granulator 1, and facilitating maintenance of the discharge device 2 and the driving mechanism 3.

[0044] It can be understood that the driving mechanism 3 also comprises a motor 130 and a speed reducer set 140, so as to provide power for the cutter 220.

[0045] In one embodiment, the inner wall of the discharge cylinder 210 is provided with a plurality of through grooves 211 along the discharge direction, and the plurality of through grooves 211 are uniformly distributed along the circumference of the discharge cylinder 210, for example, 6-12, so that the flow efficiency and stability of the hydrophilic resin in the discharge cylinder 210 along the discharge direction can be improved through the through grooves 211, thereby ensuring the granulation quality.

[0046] In one embodiment, the hole plate 230 and the cutter 220 are detachably connected with the discharge cylinder 210, so as to facilitate replacement and maintenance of the hole plate 230 and the cutter 220, meet the granulation requirements, and ensure the granulation quality.

[0047] In one embodiment, the hole plate 230 and the cutter 220 are rotationally connected, that is, the two are connected as a whole, so as to facilitate assembly with the discharge cylinder 210. Preferably, the edge of the hole plate 230 is connected with the discharge cylinder 210 through the abutting ring seat 240, and the abutting ring seat 240 is connected with the discharge cylinder 210 through bolts, so as to facilitate disassembly and assembly.

[0048] Further preferably, the cutter 220 is a rotary cutter 220, preferably a four-blade rotary cutter 220. The output shaft 31 of the driving mechanism 3 is connected with the cutter 220 through the avoiding hole 231 of the hole plate 230, and is used to drive the cutter 220 to rotate to achieve cutting.

[0049] In one embodiment, the edge of the hole plate 230 is provided with a limiting groove 232, and the end face of the abutting ring seat 240 or the discharge cylinder 210 is provided with a limiting piece matched with the limiting groove 232. The limiting groove 232 and the limiting piece cooperate to prevent the hole plate 230 from rotating, so as to avoid rotation of the hole plate 230 and improve the granulation quality of the hydrophilic resin.

[0050] In one embodiment, the output shaft 31 of the driving mechanism 3 is connected with a support seat 32, and the support seat 32 has a first distance from the discharge end of the discharge cylinder 210, so as to provide a certain position for discharging.

[0051] In one embodiment, the feeding end of the discharge cylinder 210 is detachably connected with the discharge end of the constant-diameter conveying cavity 110, so as to facilitate maintenance of the discharging device 2, and also make the screw granulator 1 be able to realize normal operation by disassembling the discharging device 2.

[0052] In one embodiment, the conveying screw 120 is arranged with a first thread groove and a second thread groove in the discharging direction, and the pitch of the first thread groove is greater than the pitch of the second thread groove, so as to facilitate feeding and ensure feeding efficiency.

[0053] It should be noted that when the hydrophilic resin rubber block is granulated, a dispersing agent is usually added during the granulation process to improve the quality of the hydrophilic resin particles. Therefore, in one embodiment, the constant-diameter conveying cavity 110 has a rubber block feeding port 111 and a dispersing agent feeding port 112, the rubber block feeding port 111 is arranged corresponding to the first thread groove, and the dispersing agent feeding port 112 is arranged corresponding to the second thread groove.

[0054] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A granulation device for hydrophilic resin blocks, characterized in that, The screw granulator comprises an equal-diameter conveying cavity and a conveying screw rod arranged in the equal-diameter conveying cavity. The discharging device comprises a discharging barrel, a cutter and a hole plate. The inner cavity of the discharging barrel is reduced in size along the discharging direction, and the feeding end of the discharging barrel is communicated with the discharging end of the equal-diameter conveying cavity.

2. The granulating apparatus for hydrophilic resin pellets according to claim 1, wherein The inner wall of the discharging barrel is provided with a plurality of through grooves along the discharging direction, and the plurality of through grooves are uniformly distributed along the circumference of the discharging barrel.

3. The granulating apparatus for hydrophilic resin pellets according to claim 1, wherein The hole plate and the cutter are detachably connected with the discharging barrel.

4. The granulating apparatus for hydrophilic resin pellets according to claim 3, wherein The hole plate and the cutter are rotationally connected, the edge of the hole plate is connected with the discharging barrel through a pressing ring seat, and the pressing ring seat and the discharging barrel are connected through bolts. The cutter is a rotary cutter, the output shaft of the driving mechanism is connected with the cutter through the avoiding hole of the hole plate, and is used to drive the cutter to rotate to realize cutting.

5. The granulating apparatus for hydrophilic resin pellets according to claim 4, wherein The edge of the hole plate is provided with a limiting groove, the pressing ring seat or the end face of the discharging barrel is provided with a limiting piece matched with the limiting groove, and the limiting groove and the limiting piece are matched to prevent the hole plate from rotating.

6. The granulating apparatus for hydrophilic resin pellets according to claim 4, wherein The output shaft of the driving mechanism is connected with a supporting seat, and the supporting seat and the discharging end of the discharging barrel have a first distance.

7. The granulating apparatus for hydrophilic resin pellets according to claim 1, wherein The feeding end of the discharging barrel is detachably connected with the discharging end of the equal-diameter conveying cavity.

8. The granulating apparatus for hydrophilic resin pellets according to claim 1, wherein The conveying screw rod is arranged with a first thread groove and a second thread groove along the discharging direction, and the pitch of the first thread groove is greater than the pitch of the second thread groove.

9. The granulating apparatus for hydrophilic resin pellets according to claim 8, wherein The equal-diameter conveying cavity has a rubber block feeding port and a dispersant feeding port, the rubber block feeding port is arranged corresponding to the first thread groove, and the dispersant feeding port is arranged corresponding to the second thread groove.

Images