A granulating apparatus for ceramic powder

Abstract

This utility model discloses a granulation device for ceramic powder processing, including a mounting frame. A granulation mechanism and a drive assembly are mounted on the top of the mounting frame, with the granulation mechanism located to one side of the drive assembly. The granulation mechanism has an upper shell and a lower shell. A granulation mold is installed between the bottom of the upper shell and the top of the lower shell, and an annular guide plate is installed on the upper surface of the granulation mold. A first guide plate and a second guide plate are installed on the circumferential inner wall of the upper shell, and a discharge plate is installed below the circumferential inner wall of the lower shell. The granulation mechanism is equipped with a rolling assembly for rolling the material on the top of the granulation mold. This utility model allows the ceramic powder granulation material to fall evenly into the effective working area of ​​the granulation mold, avoiding the situation where material concentrates in a certain area of ​​the granulation mold and accumulates, resulting in uneven pressure distribution during rolling and large particle size differences in the produced particles.

Description

Technical Field

[0001] This utility model relates to the technical field of ceramic powder processing and granulation equipment, specifically a granulation equipment for ceramic powder processing. Background Technology

[0002] Ceramic powder granulation is a key process in the preparation of ceramic materials. Its purpose is to process fine powdered ceramic raw materials into particles with a certain particle size distribution, flowability and strength to meet the requirements of subsequent molding processes (such as pressing, injection molding, etc.). Roller granulation equipment is widely used in the field of ceramic powder processing due to its advantages such as high efficiency, low energy consumption and stable particle quality. Its core principle is to apply pressure to the material through roller dies (such as rollers) rotating in opposite directions, so that the material is pressed and agglomerated into particles in the roller pressing area.

[0003] A search revealed that patent publication number CN208512497U discloses a roller pressing granulation device, which includes a tank (111) and a granulation assembly. The tank (111) has a feed inlet at the top, a dry hot air inlet and a humid hot air outlet on the side wall of the tank (111), and an inverted truncated cone shape at the bottom of the tank (111). The granulation assembly includes a motor (116), a rotating shaft (117), a roller pressing table (118), and a set of pressure rollers (119). The motor (116) is fixedly installed at the bottom of the tank (111), and the power output shaft of the motor (116) is connected to the rotating shaft (117) through a reducer. The rotating shaft (117) is located inside the tank (111). The advantages are: high granulation efficiency, good particle integrity, no environmental pollution, no dust entering the transmission shaft of the granulation device, and long service life.

[0004] Existing ceramic powder granulation equipment typically uses gravity feeding or simple hopper direct discharge in actual use. This makes it difficult for the ceramic powder granules to fall evenly into the rolling area of ​​the granulation mold. The ceramic powder granules tend to accumulate above the mold, resulting in uneven pressure distribution during rolling and causing large differences in particle size. This affects the density and mechanical properties of subsequent ceramic products. Therefore, a ceramic powder granulation equipment is designed. Utility Model Content

[0005] In view of the defects or deficiencies of the granulation equipment for ceramic powder processing, the purpose of this utility model is to provide a granulation equipment for ceramic powder processing that can make the ceramic powder granulation material fall evenly into the effective working area of ​​the granulation mold, thus avoiding the occurrence of large differences in the produced particles.

[0006] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0007] This utility model provides a granulation device for ceramic powder processing, including a mounting frame, a granulation mechanism and a drive assembly mounted on the top of the mounting frame, and the granulation mechanism is located on one side of the drive assembly.

[0008] The granulation mechanism is provided with an upper shell and a lower shell, with the upper shell located above the lower shell. A granulation mold is installed between the bottom end of the upper shell and the top end of the lower shell, and an annular guide plate is installed on the upper surface of the granulation mold. A first guide plate and a second guide plate are installed on the circumferential inner wall of the upper shell. A discharge plate is installed below the circumferential inner wall of the lower shell. The granulation mechanism is provided with a rolling assembly for rolling the material on the top of the granulation mold, and a pelletizing assembly for cutting off the material extruded from the bottom of the granulation mold and scraping the material on the top of the discharge plate to the outside.

[0009] Preferably, the upper shell, the lower shell, and the granulation mold are fixedly connected by fastening bolts, the outer circumferential wall of the annular guide plate is in contact with the inner circumferential wall of the upper shell, and the lower shell is installed on one side of the top of the mounting frame.

[0010] Preferably, the outer circumferential walls of the first and second guide plates are threadedly connected to the inner circumferential wall of the upper shell. A discharge port is provided on one side of the outer circumferential wall of the lower shell, and a guide plate is provided on one side of the discharge port. The guide plate is installed on one side of the outer circumferential wall of the lower shell.

[0011] Preferably, the roller pressing assembly is located at the top of the granulation mold. The roller pressing assembly is composed of a connecting sleeve, a connecting shaft, and a pressure roller. The connecting sleeve has a connecting shaft arranged in a ring array on its circumferential outer wall, and the pressure roller is arranged on the connecting shaft.

[0012] Preferably, the pelletizing assembly is provided with a rotating shaft, the bottom end of which is equipped with a driven pulley, which is located inside the mounting frame. The top end of the rotating shaft passes through a sealed bearing at the center of the discharge plate surface and a sealed bearing at the center of the pelletizing mold surface in sequence, and is fixedly connected to the connecting sleeve by fastening bolts.

[0013] Preferably, a threaded sleeve and a scraper are provided on the circumferential outer wall of the rotating shaft. Both the threaded sleeve and the scraper are located between the discharge plate and the granulation mold. The threaded sleeve is located above the scraper, and the bottom end of the scraper contacts the top end of the discharge plate. A cutting plate and an adjusting bolt are installed on both sides of the circumferential outer wall of the threaded sleeve. The cutting plate is located above the adjusting bolt. The threaded sleeve and the rotating shaft are connected by a threaded fit, and an external thread is provided on the upper part of the circumferential outer wall of the rotating shaft.

[0014] Preferably, the drive assembly consists of a geared motor and a drive pulley. The geared motor is mounted on the other side of the top of the mounting frame. The output shaft of the geared motor passes through the top of the mounting frame and is connected to the drive pulley. The drive pulley is located inside the mounting frame and is connected to the driven pulley via a transmission belt.

[0015] Compared with existing technologies, one or more of the above technical solutions have the following beneficial effects:

[0016] In this invention, through a series of coordinated structural arrangements, when the equipment performs granulation on ceramic powder, the operator pours the ceramic powder into the first housing. The first guide plate and the second guide plate inside the first housing sequentially guide the ceramic powder, ensuring that the ceramic powder falls evenly into the effective working area of ​​the granulation mold. This avoids the material from concentrating in a certain area of ​​the granulation mold and accumulating, which would cause uneven pressure distribution during the rolling process, resulting in large particle differences and affecting the density and mechanical properties of subsequent ceramic products.

[0017] In this invention, through a series of coordinated structural arrangements, the geared motor on the drive assembly drives the rotating shaft to rotate when it starts. The rotating shaft, in turn, drives the cutting plate and scraper to rotate. The rotating cutting plate cuts the material extruded from the bottom of the granulation mold, forming granules. These granules fall onto the discharge plate. An inclined section is provided on one side of the top of the discharge plate. When the scraper rotates, it scrapes the granules on the top of the discharge plate onto the inclined section. The granules roll onto the discharge port, where they roll onto the guide plate. The guide plate then guides and discharges the granules, preventing accumulation on the discharge plate and eliminating the need for manual material removal, thus reducing the workload of the workers. Attached Figure Description

[0018] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model. Figure 1 .

[0020] Figure 2 This is a schematic diagram of the overall three-dimensional structure of this utility model. Figure 2 .

[0021] Figure 3 This is a cross-sectional view of the granulation mechanism of this utility model.

[0022] Figure 4 This is a schematic diagram of the structure of the roller pressing assembly of this utility model.

[0023] Figure 5 This is a schematic diagram of the structure of the pelletizing assembly of this utility model.

[0024] Figure 6 This is a schematic diagram of the granulation mold of this utility model.

[0025] In the picture:

[0026] 100. Mounting bracket;

[0027] 200. Driver components;

[0028] 300. Granulation mechanism; 310. Upper shell; 311. First guide plate; 312. Second guide plate; 320. Lower shell; 321. Discharge port; 322. Guide plate; 323. Discharge plate; 330. Granulation mold; 331. Annular guide plate; 340. Roller assembly; 341. Connecting sleeve; 342. Pressure roller; 343. Connecting shaft; 350. Pelletizing assembly; 351. Rotating shaft; 352. Threaded sleeve; 353. Cutting plate; 354. Scraper; 355. Driven pulley. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0030] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0031] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0032] like Figure 1-6 As shown, a granulation device for ceramic powder processing includes a mounting frame 100, a granulation mechanism 300 and a drive assembly 200 are mounted on the top of the mounting frame 100, and the granulation mechanism 300 is located on one side of the drive assembly 200.

[0033] The granulation mechanism 300 is provided with an upper shell 310 and a lower shell 320, with the upper shell 310 located above the lower shell 320. A granulation mold 330 is installed between the bottom end of the upper shell 310 and the top end of the lower shell 320. An annular guide plate 331 is installed on the upper surface of the granulation mold 330. A first guide plate 311 and a second guide plate 312 are installed on the circumferential inner wall of the upper shell 310. A discharge plate 323 is installed below the circumferential inner wall of the lower shell 320. The granulation mechanism 300 is provided with a rolling assembly 340 for rolling the material on the top of the granulation mold 330. The granulation mechanism 300 is provided with a pelletizing assembly 350 for cutting off the material extruded from the bottom of the granulation mold 330 and scraping the material on the top of the discharge plate 323 to the outside.

[0034] The upper shell 310, the lower shell 320 and the granulation mold 330 are fixedly connected by fastening bolts. Because the upper shell 310, the lower shell 320 and the granulation mold 330 are fixedly connected by fastening bolts, the workers can disassemble, replace or clean the granulation mold 330. The circumferential outer wall of the annular guide plate 331 is in contact with the circumferential inner wall of the upper shell 310. The lower shell 320 is installed on one side of the top of the mounting frame 100.

[0035] The outer circumferential walls of the first guide plate 311 and the second guide plate 312 are threadedly connected to the inner circumferential wall of the upper housing 310. Because the outer circumferential walls of the first guide plate 311 and the second guide plate 312 are threadedly connected to the inner circumferential wall of the upper housing 310, the workers can disassemble and assemble the first guide plate 311 and the second guide plate 312. A discharge port 321 is provided on one side of the outer circumferential wall of the lower housing 320, and a guide plate 322 is provided on one side of the discharge port 321. The guide plate 322 is installed on one side of the outer circumferential wall of the lower housing 320.

[0036] The roller pressing assembly 340 is located on top of the granulation mold 330. The roller pressing assembly is composed of a connecting sleeve 341, a connecting shaft 343 and a pressure roller 342. The connecting shaft 343 is arranged in a ring array on the circumferential outer wall of the connecting sleeve 341, and the pressure roller 342 is arranged on the connecting shaft 343.

[0037] The pelletizing assembly 350 is provided with a rotating shaft 351. A driven pulley 355 is installed at the bottom end of the rotating shaft 351, and the driven pulley 355 is located inside the mounting frame 100. The top end of the rotating shaft 351 passes through the sealed bearing at the center of the surface of the discharge plate 323 and the sealed bearing at the center of the surface of the pelletizing mold 330 in sequence, and is fixedly connected to the connecting sleeve 341 by fastening bolts.

[0038] A threaded sleeve 352 and a scraper plate 354 are provided on the circumferential outer wall of the rotating shaft 351. Both the threaded sleeve 352 and the scraper plate 354 are located between the discharge plate 323 and the granulation mold 330. The threaded sleeve 352 is positioned above the scraper plate 354, and the bottom end of the scraper plate 354 contacts the top end of the discharge plate 323. A cutting plate 353 and an adjusting bolt are installed on both sides of the circumferential outer wall of the threaded sleeve 352. The cutting plate 353 is positioned above the adjusting bolt. The threaded sleeve 352 and the rotating shaft 351 are connected by a threaded fit. An external thread is provided on the upper part of the circumferential outer wall of the rotating shaft 351. With the coordinated arrangement of the threaded sleeve 352, adjusting bolt, and other structures, when the operator rotates the adjusting bolt to release the fixed connection between the threaded sleeve 352 and the rotating shaft 351, the operator can adjust the distance between the cutting plate 353 and the granulation mold 330 by rotating the threaded sleeve 352. The adjustable distance between the cutting plate 353 and the granulation mold 330 allows for adjustment of the size of the granules cut by the cutting plate 353. After the distance between the cutting plate 353 and the granulation mold 330 is adjusted, the operator can fix the threaded sleeve 352 on the rotating shaft 351 by rotating the adjusting bolt.

[0039] The drive assembly 200 is composed of a geared motor and a drive pulley. The geared motor is installed on the other side of the top of the mounting frame 100. The output shaft of the geared motor passes through the top of the mounting frame 100 and is connected to the drive pulley. The drive pulley is located inside the mounting frame 100. The drive pulley is connected to the driven pulley 355 through a transmission belt. When the geared motor starts, it drives the drive pulley to rotate. When the drive pulley rotates, it drives the driven pulley 355 to rotate through the transmission belt. When the driven pulley 355 rotates, it drives the rotating shaft 351 to rotate. When the rotating shaft 351 rotates, it drives the roller pressing assembly 340, the cutting plate 353, and the scraper plate 354 to rotate.

[0040] Working Principle: When in use, with the external power supply connected, the operator pours the ceramic powder into the first housing. The first guide plate 311 and the second guide plate 312 within the first housing sequentially guide the ceramic powder, ensuring it falls evenly into the effective working area of ​​the granulation mold 330. This prevents material from concentrating in a specific area of ​​the mold and accumulating, which could lead to uneven pressure distribution during rolling, resulting in large particle size variations and affecting the density and mechanical properties of subsequent ceramic products. When the reduction motor on the drive assembly 200 starts, it drives the rotating shaft 351 to rotate. When rotating, the cutting plate 353 and the scraper plate 354 will also rotate. When the cutting plate 353 rotates, it can cut the material extruded from the bottom of the granulation mold 330 to form granules. The granules fall onto the discharge plate 323. The top side of the discharge plate 323 is provided with an inclined part. When the scraper plate 354 rotates, it will scrape the granules on the top of the discharge plate 323 onto the inclined part. The granules will roll to the discharge port 321 while on the inclined part. The granules at the discharge port 321 will roll onto the guide plate. The guide plate guides the granules out, thereby avoiding the accumulation of granules on the discharge plate 323. There is no need for manual material removal on the discharge plate 323, which reduces the workload of the staff.

[0041] The above description is merely a preferred embodiment of this utility model and is not intended to limit the invention. For those skilled in the art, various modifications and variations can be made to this invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the protection scope of this invention.

Claims

1. A granulation device for ceramic powder processing, comprising a mounting frame (100), characterized in that: The top of the mounting bracket (100) is equipped with a granulation mechanism (300) and a drive assembly (200), and the granulation mechanism (300) is located on one side of the drive assembly (200); The granulation mechanism (300) is provided with an upper shell (310) and a lower shell (320), with the upper shell (310) located above the lower shell (320). A granulation mold (330) is installed between the bottom end of the upper shell (310) and the top end of the lower shell (320), and an annular guide plate (331) is installed on the upper surface of the granulation mold (330). A first guide plate (311) and a second guide plate are installed on the circumferential inner wall of the upper shell (310). (312) A discharge plate (323) is installed below the circumferential inner wall of the lower housing (320). A roller pressing assembly (340) is provided on the granulation mechanism (300) for pressing the material on the top of the granulation mold (330). A pelletizing assembly (350) is provided on the granulation mechanism (300) for cutting off the material squeezed out from the bottom of the granulation mold (330) and scraping the material on the top of the discharge plate (323) to the outside.

2. The granulation equipment for ceramic powder processing according to claim 1, characterized in that: The upper shell (310), lower shell (320) and granulation mold (330) are fixedly connected by fastening bolts. The outer circumferential wall of the annular guide plate (331) is in contact with the inner circumferential wall of the upper shell (310). The lower shell (320) is installed on one side of the top of the mounting frame (100).

3. The granulation equipment for ceramic powder processing according to claim 1, characterized in that: The outer circumferential walls of the first guide plate (311) and the second guide plate (312) are threadedly connected to the inner circumferential wall of the upper shell (310). A discharge port (321) is provided on one side of the outer circumferential wall of the lower shell (320), and a guide plate (322) is provided on one side of the discharge port (321), and the guide plate (322) is installed on one side of the outer circumferential wall of the lower shell (320).

4. The granulation equipment for ceramic powder processing according to claim 1, characterized in that: The roller pressing assembly (340) is located on top of the granulation mold (330). The roller pressing assembly is composed of a connecting sleeve (341), a connecting shaft (343) and a pressure roller (342). The connecting sleeve (341) has a connecting shaft (343) arranged in a ring array on its circumferential outer wall, and the pressure roller (342) is arranged on the connecting shaft (343).

5. The granulation equipment for ceramic powder processing according to claim 1, characterized in that: The pelletizing assembly (350) is provided with a rotating shaft (351), and a driven pulley (355) is installed at the bottom end of the rotating shaft (351). The driven pulley (355) is located inside the mounting frame (100). The top end of the rotating shaft (351) passes through the sealed bearing at the center of the surface of the discharge plate (323) and the sealed bearing at the center of the surface of the pelletizing mold (330) in sequence, and is fixedly connected to the connecting sleeve (341) by fastening bolts.

6. The granulation equipment for ceramic powder processing according to claim 5, characterized in that: The rotating shaft (351) is provided with a threaded sleeve (352) and a scraper (354) on its circumferential outer wall. The threaded sleeve (352) and the scraper (354) are both located between the discharge plate (323) and the granulation mold (330). The threaded sleeve (352) is located above the scraper (354), and the bottom end of the scraper (354) is in contact with the top end of the discharge plate (323). The threaded sleeve (352) is provided with a cutting plate (353) and an adjusting bolt on both sides of its circumferential outer wall. The cutting plate (353) is located above the adjusting bolt. The threaded sleeve (352) and the rotating shaft (351) are connected by a threaded fit, and the rotating shaft (351) is provided with an external thread on its circumferential outer wall.

7. The granulation equipment for ceramic powder processing according to claim 1, characterized in that: The drive assembly (200) is composed of a geared motor and a drive pulley. The geared motor is mounted on the other side of the top of the mounting frame (100). The output shaft of the geared motor passes through the top of the mounting frame (100) and is connected to the drive pulley. The drive pulley is located inside the mounting frame (100). The drive pulley is connected to the driven pulley (355) via a transmission belt.

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