Feeding device for sharp CA ceramic corundum abrasive

Abstract

The utility model belongs to the technical field of abrasive material production, and particularly relates to a sharp CA ceramic corundum abrasive material feeding device which is characterized by comprising a feeding auger, a first discharging hopper is arranged at a feeding port of the feeding auger, a second discharging hopper is arranged below a discharging port of the feeding auger, a tee joint is connected to a discharging port of the second discharging hopper, and the tee joint is connected with a discharging port of the feeding auger. The tee joint is provided with a front horizontal connector, a rear horizontal connector and an upper connector, the front horizontal connector is connected with a horizontal feeding pipe, the rear horizontal connector is connected with a compressed air pipe, the upper connector is connected with a discharging port of the second discharging hopper, the front end of the feeding pipe is closed, and feeding ports are symmetrically formed in the upper side and the lower side of the pipe wall at the front end. The utility model has the advantages of reasonable structure and stable and reliable work. According to the utility model, the advantage of stable speed control of the feeding auger and the advantage of rapid conveying of compressed air are combined, so that materials rapidly enter a high-temperature area to generate an instant explosion type crushing effect.

Description

Technical Field

[0001] This utility model belongs to the field of abrasive production technology, specifically relating to a feeding device for sharp-shaped CA ceramic corundum abrasive. Background Technology

[0002] Ceramic abrasives are a type of sintered abrasive. Grinding tools made from ceramic abrasives are characterized by long service life, good self-sharpening properties, high cutting efficiency, and less likelihood of burning the workpiece. With the increasing use of ceramic abrasives in recent years, the domestic market has seen various demands for new varieties, including the research and development and production of ultra-sharp ceramic abrasives. Currently, the feeding / feeding device for producing this type of abrasive must meet the following requirements:

[0003] 1) Allowing materials to rapidly enter a high-temperature environment to produce an "instantaneous explosive" crushing effect, also known as explosive crushing;

[0004] 2) Ensure that the material feeding speed is stable and sustainable, and does not affect the set high temperature environment.

[0005] Traditional abrasive feeding devices generally adopt a chute structure. For example, the utility model patent technology of a feeding device for abrasive production, authorized by the Chinese Patent Office on December 27, 2022, with announcement number CN218143712U, includes a feeding trough, an inlet at the top of the feeding trough, a worktable at the bottom of the feeding trough, support rods at the front and rear sides of one end of the feeding trough, and a support column between the bottom of the support rods and the worktable. The feeding trough is rotatably connected to the support rods via a fixed shaft. An angle adjustment mechanism is provided at the other end of the feeding trough. The angle adjustment mechanism includes a slide rail, a slider, a threaded rod, and a threaded sleeve. An installation block is provided on the worktable at the end away from the support column. The bottom of the threaded sleeve is rotatably mounted on the installation block. A driven bevel gear is fixedly sleeved on the lower end of the threaded sleeve. A drive motor is provided on the installation block. The output shaft of the drive motor is connected to a main bevel gear that meshes with the driven bevel gear. While the above solution allows for easy adjustment of the feeding speed and uniform feeding, it cannot meet the production requirements of ultra-sharp ceramic corundum abrasives. Utility Model Content

[0006] The purpose of this invention is to provide a feeding device for sharp-shaped CA ceramic corundum abrasive, which combines the advantages of stable speed control of a screw feeder and the advantages of rapid transmission of compressed air, so that the material enters the high-temperature environment at high speed, stably and continuously to produce an "instantaneous explosive" crushing effect, thus meeting the production requirements of sharp-shaped CA ceramic corundum abrasive.

[0007] This utility model is achieved through the following technical solution:

[0008] A feeding device for a sharp CA ceramic corundum abrasive is characterized by comprising a feeding auger, a first discharge funnel at the inlet of the feeding auger, a second discharge funnel below the outlet of the feeding auger, a tee connected to the discharge outlet of the second discharge funnel, the tee having a front horizontal interface, a rear horizontal interface and an upper interface, the front horizontal interface being connected to a horizontal feeding pipe, the rear horizontal interface being connected to a compressed air pipe, and the upper interface being connected to the outlet of the second discharge funnel, the front end of the feeding pipe being closed, and the front end having symmetrical feeding ports on the upper and lower sides of the pipe wall.

[0009] The feed pipe of this invention is made of stainless steel, and its inner diameter ensures that large particles of the maximum size can pass through in a single line as much as possible without being easily blocked.

[0010] The feed pipe of this invention is connected to a compressed air pipe with adjustable air pressure via a tee, and the other end is directly connected to the high-temperature zone of the low-temperature calcining furnace. In order to ensure that the material is not directly blown out of the high-temperature zone, the front end of the feed pipe is sealed and two feed ports are designed on the side. In this way, when the material is blown out of the feed pipe, it changes its original straight direction and falls into the high-temperature zone in a parabolic manner, thereby achieving an "instantaneous explosive" crushing effect.

[0011] Furthermore, the upper interface of the tee of this utility model is inclined in the direction of the rear horizontal interface, and the upper interface is connected to the discharge port of the second feeding funnel through an elbow.

[0012] Furthermore, the upper interface of the tee of this utility model has an inclination angle of 45°.

[0013] The second feeding funnel of this utility model is connected to the inclined upper interface through an elbow, so that the upper interface has an anti-backflush function, which can ensure that the material can enter the pipeline smoothly, and prevent the material from being backflushed and sprayed out from the top of the second feeding funnel.

[0014] This invention features a reasonable structure and stable, reliable operation. It combines the stable speed control of a screw feeder with the rapid transport of compressed air, allowing materials to quickly enter a high-temperature zone and produce an "instantaneous explosive" crushing effect. It is suitable for the production of sharp (ultra-sharp) CA ceramic corundum abrasives. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 for Figure 1 A magnified structural diagram of part A in the diagram.

[0017] As shown in the figure: 1. Motor; 2. Coupling; 3. Feeding auger; 4. First feeding hopper; 5. Feeding pipe; 6. Second feeding hopper; 7. Feeding pipe; 8. Feeding port; 9. Low-temperature calcining furnace; 10. Tee; 11. Elbow; 12. Pressure gauge; 13. Compressed air pipe. Detailed Implementation

[0018] The embodiments of the present utility model will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present utility model and are not intended to limit its scope of protection. It should be noted that, unless otherwise stated, the technical or scientific terms used in this application should have the ordinary meaning understood by those skilled in the art to which this utility model pertains.

[0019] like Figure 1 , Figure 2 As shown: Motor 1 is connected to feeding auger 3 via coupling 2. The feeding auger 3 has a first discharge hopper 4 at its inlet. The discharge outlet of the feeding auger 3 is connected to the discharge pipe 5. Below the discharge outlet of the discharge pipe 5, there is a second discharge hopper 6. A tee 10 is connected to the discharge outlet of the second discharge hopper 6. The tee 10 has a front horizontal interface, a rear horizontal interface, and an upper interface. The upper interface of the tee 10 is inclined towards the rear horizontal interface at an angle of 45°. The upper interface is connected to the discharge outlet of the second discharge hopper 6 via elbow 11. The front horizontal interface of the tee 10 is connected to the horizontal feed pipe 7. The front end of the feed pipe 7 is closed. Feed ports 8 are symmetrically arranged on the upper and lower sides of the pipe wall at the front end. The rear horizontal interface is connected to the compressed air pipe 13. A pressure gauge 12 is installed on the compressed air pipe 13.

[0020] In use, the material enters the feeding auger 3 through the first feeding hopper. The feeding auger 3 then transports the material through the feeding pipe 5 to the second feeding hopper 6. The material enters the tee through the second feeding hopper 6 and, under the action of compressed air from the compressed air pipe 13, the material flows through the feeding pipe 7 and the feeding port 8, falling in a parabolic manner into the high-temperature zone of the low-temperature calcining furnace 9. Due to the instantaneous high temperature, the moisture inside the material is rapidly released, thus forming an "instantaneous explosive" crushing effect. Due to the uncertainty of the moisture release path, the crushed material forms an uncertain particle shape, and the particle shape is very sharp.

[0021] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A feeding device for sharp-shaped CA ceramic corundum abrasive, characterized in that... The device includes a feeding auger, with a first discharge funnel at the inlet of the feeding auger and a second discharge funnel below the outlet of the feeding auger. A tee is connected to the discharge port of the second discharge funnel. The tee has a front horizontal interface, a rear horizontal interface, and an upper interface. The front horizontal interface is connected to a horizontal feed pipe, the rear horizontal interface is connected to a compressed air pipe, and the upper interface is connected to the outlet of the second discharge funnel. The front end of the feed pipe is closed, and feed ports are symmetrically arranged on the upper and lower sides of the pipe wall at the front end.

2. The feeding device for a sharp-shaped CA ceramic corundum abrasive according to claim 1, characterized in that... The upper interface of the tee is inclined towards the rear horizontal interface, and the upper interface is connected to the discharge port of the second discharge funnel through an elbow.

3. The feeding device for a sharp-shaped CA ceramic corundum abrasive according to claim 2, characterized in that... The upper interface of the tee is tilted at an angle of 45°.

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