Modification and homogenization device suitable for high-hardness powder

Abstract

The utility model discloses a modifying and homogenizing device suitable for high-hardness powder. The modifying and homogenizing device comprises a cylinder main body (1), a front end cover (2), a rear end cover, a stirrer (3), a feeding hole (4) and a dust removal bag (5), the cylinder main body is horizontally arranged, and a horizontally arranged stirrer is arranged in the cylinder main body; aluminum oxide ceramic chips are attached to the inner walls of the cylinder body, the front end cover and the rear end cover. When the equipment runs, powder is fed from a feed port, an auxiliary agent enters from an auxiliary agent liquid inlet pipe (7), and a gas inlet pipe (6) can be used for filling high-temperature compressed gas into a cylinder main body to accelerate mixing and homogenization; a second one-way valve (8) is installed on the auxiliary liquid inlet pipe, and a first one-way valve (9) is installed on the gas inlet pipe. The aluminum oxide ceramic chips are attached to the inner walls of the cylinder main body, the front end cover and the rear end cover, so that the problem that high-hardness powder abrades the inner wall of the cylinder main body is solved; and an auxiliary liquid inlet pipe and a gas inlet pipe are arranged on the front end cover and the rear end cover, so that powder modification and homogenization are accelerated.

Description

Technical Field

[0001] This utility model relates to a device for modifying and homogenizing high-hardness powders, belonging to the technical field of powder modification and homogenization equipment. Background Technology

[0002] Due to their functional designability, surface-treated inorganic mineral fillers have become an increasingly important component in polymer-based composite material systems such as rubber and resin.

[0003] However, when using traditional modification equipment to process some high-hardness powders such as silica fume and alumina, the steel consumption of the equipment is very high, which leads to a significant decrease in the whiteness of the finished product and a high content of magnetic impurities, making it very unfriendly to downstream applications. Therefore, designing a modification and homogenization device suitable for high-hardness powders is essential for improving upon traditional modification equipment. Summary of the Invention

[0004] The purpose of this invention is to solve many problems existing in traditional modification equipment when processing some high-hardness powders such as silicon micro powder and alumina, and to propose a modification and homogenization device suitable for high-hardness powders.

[0005] The technical solution of this utility model is as follows: a device for modifying and homogenizing high-hardness powder, comprising a cylindrical body, a stirrer, and a dust collection bag.

[0006] The main body of the cylinder is a horizontal cylindrical structure, with a front end cover and a rear end cover installed at both ends along its length. A stirrer is installed on the horizontal central axis inside the main body of the cylinder. The stirrer consists of a stirrer shaft and stirrer blades. The two ends of the stirrer shaft are respectively mounted on the center positions of the front end cover and the rear end cover via bearings. The stirrer blades are rectangular, and multiple stirrer blades of the same shape are fixedly installed on the stirrer shaft. Every two adjacent blades are at a 90° angle from front to back, and the stirrer blades are distributed in a spiral state on the stirrer shaft. An additive inlet pipe is connected to the top of the front end cover, and a compressed gas inlet pipe is connected to the bottom of the front end cover. A compressed gas inlet pipe is also connected to the top of the rear end cover, and a switchable outlet is provided at the bottom of the rear end cover. A first one-way valve is installed on the compressed gas inlet pipe near the front end cover and a second one-way valve is installed on the additive inlet pipe near the front end cover.

[0007] The main body of the cylinder is made of steel, and the inner wall of the cylinder is lined with alumina ceramic sheets.

[0008] The front and rear covers are partially embedded in the front and rear ends of the cylindrical body and connected by bolts. The inner walls of the front and rear covers are lined with alumina ceramic sheets.

[0009] The agitator blades are located 0.5 mm away from the inner wall of the cylindrical body with alumina ceramic sheets attached at one end away from the agitator shaft.

[0010] The top of the front end of the cylindrical body is provided with a feed inlet, which is equipped with a detachable funnel; a dust collection bag is provided at the top of the rear end of the cylindrical body.

[0011] The stirrer shaft extending from one end of the front cover is driven to rotate by an external motor via gears or belts.

[0012] The beneficial effects of this invention are as follows: The device solves the problem of wear on the inner wall of the cylindrical body caused by high-hardness powder by attaching alumina ceramic sheets to the inner walls of the cylindrical body and the front and rear end caps; the addition of an additive inlet pipe and a gas inlet pipe on the front and rear end caps allows the additive to enter through the additive inlet pipe and the gas inlet pipe to fill the cylindrical body with high-temperature compressed gas, accelerating powder modification and homogenization; the agitator blades are arranged in a spiral pattern with each adjacent pair at a 90° angle on the agitator shaft, which not only uniformly mixes the powder and modifier, achieving modification and homogenization, but also automatically pushes the modified and homogenized powder towards the discharge port. This invention features a simple layout, high efficiency, and produces high-quality output products. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a device for modifying and homogenizing high-hardness powders according to the present invention.

[0014] Figure 2 This is a structural layout diagram of the rear end cover;

[0015] Figure 3 This is a schematic diagram of the stirrer structure;

[0016] In the diagram, 1 is the main body of the cylinder; 2 is the front end cover; 3 is the agitator; 4 is the feed inlet; 5 is the dust collector bag; 6 is the gas inlet pipe; 7 is the additive liquid inlet pipe; 8 is the second check valve; 9 is the first check valve; 10 is the rear end cover; 11 is the discharge port; 12 is the agitator shaft; and 13 is the agitator blades. Detailed Implementation

[0017] like Figure 1 and Figure 2 As shown in the figure, this embodiment is a device for modifying and homogenizing high-hardness powder, including a cylindrical body 1, a front end cover 2, a rear end cover 10, a stirrer 3, a feed inlet 4, and a dust collection bag 5.

[0018] The cylindrical body of this embodiment has a diameter (diameter × length) of Φ0.8m × 1.8m and is placed horizontally. The cylindrical body 1 is made of steel and the inner wall of the cylindrical body is lined with a 5mm thick alumina ceramic sheet.

[0019] In this embodiment, the front cover 2 and the rear cover 10 are made of steel. The front cover 2 and the rear cover 10 are respectively embedded in the front and rear ends of the cylindrical body 1 and connected by bolts. The inner walls of the front cover 2 and the rear cover 10 are covered with alumina ceramic sheets.

[0020] In this embodiment, the front end cover 2 is connected to an additive inlet pipe 7 above and a compressed gas inlet pipe 6 below; the rear end cover 10 is also connected to a compressed gas inlet pipe 6 above and a switchable outlet 11 below; the additive inlet pipe 7 is equipped with a second one-way valve 8, which can prevent the additive from flowing back; both compressed gas inlet pipes 6 are equipped with a first one-way valve 9, which can prevent the compressed gas from flowing back.

[0021] like Figure 1 and Figure 3 As shown, the stirrer 3 in this embodiment includes a stirrer shaft 12 and stirrer blades 13. The stirrer shaft 12 is located on the central axis of the cylindrical body 1 and is mounted on the front end cover 2 and the rear end cover 10 respectively by bearings. The front end of the stirrer shaft 12 is connected to an external motor for rotation via gears or belts. The stirrer blades 13 are rectangular and are covered with alumina ceramic sheets. The blades are located in different directions with the stirring shaft as the central axis and are spirally oriented at an angle of 90°.

[0022] In this embodiment, the feed inlet 4 is located at the top front end of the cylindrical body 1, the dust bag 5 is located at the top rear end, and the feed inlet 4 is equipped with a detachable funnel.

[0023] In this embodiment, when the modification and homogenization device is running, the powder is fed into the feed inlet 4. After the feeding is completed, the feed funnel is disassembled and replaced with a dust collection bag. Then, while rotating the stirring shaft, the modification agent is fed into the auxiliary agent liquid inlet pipe 7. After the modification agent is fed into the device, the gas inlet pipe 6 is opened. The gas inlet pipe 6 can fill the cylindrical body with high-temperature compressed gas to accelerate the mixing and homogenization.

[0024] After the mixing and homogenization are completed, the modification and homogenization device in this embodiment opens the discharge port 11. The discharge port 11 is connected to the packaging equipment, and the finished powder is blown out of the cylindrical body of the device by compressed gas.

Claims

1. A device for modifying and homogenizing high-hardness powders, comprising a cylindrical body and a stirrer, characterized in that, The main body of the cylinder is a horizontal cylindrical structure, with a front end cover and a rear end cover installed at both ends along its length. An agitator is installed on the horizontal central axis inside the main body of the cylinder. The agitator consists of an agitator shaft and agitator blades, with the two ends of the agitator shaft mounted at the center positions of the front end cover and the rear end cover respectively via bearings. The agitator blades are rectangular, and multiple blades of the same shape are fixedly mounted on the agitator shaft. From front to back, each pair of adjacent blades forms a 90° angle, and the blades are distributed in a spiral pattern on the agitator shaft. An additive inlet pipe is connected above the front end cover, and a compressed gas inlet pipe is connected below it. A compressed gas inlet pipe is also connected above the rear end cover, and a switchable outlet is provided below it. A first check valve is installed near the front and rear end covers of the compressed gas inlet pipe, and a second check valve is installed near the front end cover of the additive inlet pipe.

2. The device for modifying and homogenizing high-hardness powders according to claim 1, characterized in that, The main body of the cylinder is made of steel, and the inner wall of the cylinder is lined with alumina ceramic sheets.

3. The device for modifying and homogenizing high-hardness powders according to claim 1, characterized in that, The front and rear covers are partially embedded in the front and rear ends of the cylindrical body and connected by bolts. The inner walls of the front and rear covers are lined with alumina ceramic sheets.

4. The device for modifying and homogenizing high-hardness powders according to claim 1, characterized in that, The top of the front end of the cylindrical body is provided with a feed inlet, which is equipped with a detachable funnel; a dust collection bag is provided at the top of the rear end of the cylindrical body.

5. The device for modifying and homogenizing high-hardness powders according to claim 1, characterized in that, The stirrer shaft extending from one end of the front cover is driven to rotate by an external motor via gears or belts.

6. The device for modifying and homogenizing high-hardness powders according to claim 1, characterized in that, The agitator blades are located 0.5 mm away from the inner wall of the cylindrical body with alumina ceramic sheets attached at one end away from the agitator shaft.

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