CN210846210U

CN210846210U - Powder modifying device

Info

Publication number: CN210846210U
Application number: CN201921527642.1U
Authority: CN
Inventors: 周峰; 徐永华; 温声平; 肖毓秀; 宋波; 袁斌
Original assignee: Jiangxi Guangyuan Chemical Co Ltd
Current assignee: Jiangxi Guangyuan Chemical Co Ltd
Priority date: 2019-09-16
Filing date: 2019-09-16
Publication date: 2020-06-26
Anticipated expiration: 2029-09-16

Abstract

A powder modifying device comprises a high-speed stirrer (2), a spiral reamer shearing machine (3), an electronic control heating module (4), a double-roller grinding machine (5), a vibrating screen (6), an automatic packaging machine (7) and a spiral conveyor (8). The materials are put into a high-speed stirrer from a feeding port (1); the discharge hole of the high-speed stirrer is opposite to the feeding side of the spiral reamer shearing machine; a discharge port of the spiral reamer shearing machine is connected with a double-roller grinding machine; an electronic control heating module is arranged along the advancing direction of the spiral reamer shearing machine; the materials ground by the double rollers enter a vibrating screen for screening; and conveying the screened powder to an automatic packaging machine by a screw conveyor for packaging. The device has high automation degree, is closed production in the whole process, and has no dust pollution; the device can be used for continuous production, has high batch stability, and can effectively ensure the moisture index of the powder.

Description

Powder modifying device

Technical Field

The utility model relates to a modification device of powder, which belongs to the technical field of inorganic powder modification.

Background

In the field of inorganic powder application, the surface treatment modification of powder is a very critical step and is a very critical index influencing the powder processing application and the compatibility with a base material. The powder has good surface treatment, high carrier molten fat, good compatibility between the powder and the carrier, and tight combination with resin, so that the mechanical strength, flexibility and the like of the final product are better. The powder modifying method mainly comprises physical coating, chemical coating, precipitation reaction, mechanochemistry, powder particle intercalation modification, high-energy surface modification and the like. The traditional modification equipment mainly adopts mechanical stirring to uniformly mix the powder and the modifier in a high-speed stirring barrel and naturally wrap the powder and the modifier, a physical coating method is adopted, and the surface modifier and the surfaces of powder particles basically have physical adsorption or simple adhesion.

Disclosure of Invention

The utility model aims at providing a powder modification device for solving the problem of the traditional inorganic powder physical modification.

The technical scheme of the utility model as follows, a modified device of powder, grind machine, shale shaker, automatic packaging machine and screw conveyer including high-speed mixer, spiral reamer cutter, electronic control heating module, two rollers. Feeding the materials into a high-speed stirrer from a feeding port; the discharge hole of the high-speed stirrer is opposite to the feeding side of the spiral reamer shearing machine; a discharge port of the spiral reamer shearing machine is connected with a double-roller grinding machine; an electronic control heating module is arranged along the advancing direction of the spiral reamer shearing machine; the materials ground by the double rollers enter a vibrating screen for screening; and conveying the screened powder to an automatic packaging machine by a screw conveyor for packaging.

The materials are powder and modifier to be modified.

The electronic control heating module is formed by connecting five small modules in series, resistance heating sheets are arranged on two sides of each small module, the power of each heating sheet is 1000w, and the heating sheets can be heated to 280 ℃.

The rotating speed of the high-speed stirrer is 3000 revolutions per minute, and the high-speed stirrer is used for fully premixing materials.

The spiral reamer shearing machine is composed of two groups of spiral reamers, the shearing directions of the two groups of spiral reamers are different, and the shearing force is stronger.

The filter screen of the vibrating screen is 300 meshes and used for removing large particles.

The double-roll grinder can adjust the gap between the double rolls according to requirements.

The utility model discloses an theory of operation as follows, the utility model discloses throw the material that powder and modifier mix to form and get into high speed mixer by the dog-house, through high-speed dispersion misce bene back by the powerful shearing of helical reamer cutter when carrying under the heating environment of heating module, product after the modification grinds through two roller grinders, gets rid of the big granule of reunion, further detach the big granule through the shale shaker after grinding, send to the automatic packaging machine packing again by screw conveyer.

The utility model discloses a mechanical force chemistry is modified, and is not simple physical coating, and the modifier is connected closely, is difficult to drop, and modification effect is good. The device of the utility model has high automation degree, and can save a large amount of manpower; the device is produced in a full-process closed manner, has no dust pollution and is environment-friendly; the device can be used for continuous production, has high batch stability, and can effectively ensure the moisture index of the powder.

Drawings

FIG. 1 is a schematic structural view of a modification apparatus of the present invention;

in the figure, 1 is a feeding port; 2 is a high-speed stirrer; 3 is a helical reamer; 4 is an electronically controlled heating module; 5, double-roller grinding; 6 is a vibrating screen; 7 is an automatic packaging machine; and 8 is a screw conveyor.

Detailed Description

The specific embodiment of the present invention is shown in fig. 1.

The device for modifying powder comprises a high-speed stirrer 2, a spiral reamer shearing machine 3, an electronic control heating module 4, a double-roller grinder 5, a vibrating screen 6, an automatic packaging machine 7 and a spiral conveyor 8. The materials are put into a high-speed stirrer 2 from a feeding port 1; the discharge hole of the high-speed stirrer 2 is over against the feeding side of the spiral reamer shearing machine 3; the discharge port of the spiral reamer shearing machine 3 is connected with a double-roller grinder 5; an electronic control heating module 4 is arranged along the advancing direction of the screw reamer shearing machine; the materials ground by the double rollers enter a vibrating screen 6 for screening; the screened powder is sent to an automatic packaging machine 6 by a screw conveyer 8 for packaging.

The electronic control heating module in the embodiment is formed by connecting five small modules in series, resistance heating sheets are arranged on two sides of each small module, the power of each heating sheet is 1000w, and the heating sheet can be heated to 280 ℃.

The high-speed stirrer in the embodiment has the rotating speed of 3000 revolutions per minute and is used for fully premixing materials.

The spiral reamer shearing machine in the embodiment comprises two groups of spiral reamers, the shearing directions of the two groups of spiral reamers are different, and the shearing force is stronger.

The sieve of the vibrating screen in this embodiment is 300 mesh for removing large particles.

The twin roll grinder of this embodiment can adjust the gap between the twin rolls as required.

The modification method adopted by the device of the embodiment is mechanochemical modification. The powder and the modifier are stirred at high speed and premixed uniformly, and then are sheared and extruded under the condition of temperature rise by using a spiral reamer, the surface of the powder is activated by using strong mechanical shearing force, and the crystal structure, the physical and chemical properties, the chemical adsorption and the reaction activity of the particle surface are changed to a certain extent so as to be tightly combined with the modifier. And heating at a proper temperature during shearing to further improve the reaction activity so that the modifier is better combined with the powder.

The device of the embodiment is suitable for modifying powder with various types and particle sizes. The particle size of the powder is related to the powder selected before modification, the particle size of the powder after modification is slightly larger than that before modification (the mesh number is reduced by 50-100 meshes), and the oil absorption value is reduced, but compared with the traditional equipment, the particle size retention degree, the coarse particle condition and the oil absorption value reduction degree of the equipment are all better than those of the traditional equipment.

Compared with the prior art, the modified powder prepared by the device has higher coating rate, tighter combination of the modifier and the powder particles, better maintenance of the original particle size of the powder and low oil absorption value.

Claims

1. The device for modifying the powder is characterized by comprising a high-speed stirrer, a spiral reamer shearing machine, an electronic control heating module, a double-roller grinder, a vibrating screen, an automatic packaging machine and a spiral conveyer; feeding the materials into a high-speed stirrer from a feeding port; the discharge hole of the high-speed stirrer is opposite to the feeding side of the spiral reamer shearing machine; a discharge port of the spiral reamer shearing machine is connected with a double-roller grinding machine; an electronic control heating module is arranged along the advancing direction of the spiral reamer shearing machine; the materials ground by the double rollers enter a vibrating screen for screening; and conveying the screened powder to an automatic packaging machine by a screw conveyor for packaging.

2. The powder modifying apparatus according to claim 1, wherein the material is a powder to be modified and a modifier.

3. The powder modifying device of claim 1, wherein the electronically controlled heating module comprises five small modules connected in series, each small module has resistive heating plates on both sides, each heating plate has a power of 1000w and can heat to 280 ℃.

4. The powder modifying apparatus as claimed in claim 1, wherein the high speed agitator has a speed of 3000 rpm for thorough premixing of the materials.

5. The powder modifying device of claim 1, wherein the helical reamer shearing machine comprises two helical reamers, and the shearing directions of the two helical reamers are opposite.

6. The powder modifying apparatus according to claim 1, wherein the sieve of the vibrating screen is 300 mesh for removing large particles.

7. The powder modifying apparatus of claim 1, wherein the twin roll mill is capable of adjusting the gap between the twin rolls according to the requirement.