CN217392991U

CN217392991U - Collection device of inorganic powder of lamellar structure

Info

Publication number: CN217392991U
Application number: CN202221319214.1U
Authority: CN
Inventors: 吴平飞; 邹检生; 杨珍郁; 阙和文
Original assignee: Haicheng Xinguangyuan Powder Material Co ltd; Jiangxi Guangyuan Chemical Co Ltd
Current assignee: Haicheng Xinguangyuan Powder Material Co ltd; Jiangxi Guangyuan Chemical Co Ltd
Priority date: 2022-05-30
Filing date: 2022-05-30
Publication date: 2022-09-09
Anticipated expiration: 2032-05-30

Abstract

A collecting device for inorganic powder with a flaky structure comprises a hopper (1), a spiral feeding pipe (2), an air pipe (3), a pulse cloth bag (5), an induced draft fan (4), an outer conical hopper (6), an outer conical hopper (7), a pulse barrel (8), a first discharge port (9) and a second discharge port (10). The device of the utility model reduces the content of coarse powder and fine powder and simultaneously greatly improves the proportion of the powder with the sheet structure through twice screening processes, and the particle size distribution of the pulse collected ultrafine powder is narrow, so that the device can be applied to downstream enterprises with high requirements on the ultrafine powder; the coarse grain powder with a sheet structure can be continuously recycled and secondarily ground, and raw materials are fully utilized.

Description

Collection device of inorganic powder of lamellar structure

Technical Field

The utility model relates to a collection device of inorganic powder of lamellar structure belongs to inorganic non-metallic material technical field.

Background

The powder with a sheet structure in inorganic nonmetallic minerals has various varieties, one is a powder with a complete sheet structure, the common powder is mica, talcum powder, magnesium hydroxide and the like, the powder with the sheet structure can be obtained by a grinding process of a direct physical method, the other is chemical synthesis, the regulation and control of the sheet structure of the powder are realized by controlling the process of the synthesis process, but the cost of the chemical synthesis is too high, the yield of the physical method is high, but the mechanical grinding is adopted, the sheet structure of the natural mineral powder with the sheet structure is usually destroyed because of the influence of a processing process, the powder is in different forms after the mechanical force is applied, particularly after the powder is ultrafined, the original sheet structure cannot exert the corresponding performance, the theoretical difference of the sheet structure to the powder product produced in actual production is too large, and the sheet structure in the actual finished product is kept complete, however, downstream powder application enterprises hope to provide powder with high proportion of sheet structure, so that the performance of products of the downstream enterprises can be continuously optimized, for example, the sheet structure powder in the powder with low content of sheet structure can be separated, the additional value of the product can be greatly improved, and the requirements of the downstream application enterprises can be met.

Disclosure of Invention

The utility model aims at solving the difficult problem of flake structure powder separation in inorganic nonmetallic minerals and developing a collection device of flake structure inorganic powder.

The technical scheme of the utility model is that the collecting device of the lamellar inorganic powder comprises a hopper, a spiral feeding pipe, an air pipe, a pulse cloth bag, a draught fan and a pulse barrel; the hopper is connected with the feeding end of the spiral feeding pipe; the discharge end of the spiral feeding pipe is connected with the feed inlet at the lower part of the air pipe; the top end of the air pipe is connected with a top feed inlet of the pulse barrel through an induced draft fan; a pulse cloth bag is arranged in the pulse barrel, and an inner conical hopper and an outer conical hopper are arranged at the bottom of the pulse barrel; the wide opening of the inner conical hopper is connected with the lower end of the pulse cloth bag, and the conical opening of the inner conical hopper is a second discharge hole; the wide mouth of outer toper hopper links as an organic whole with pulse barrel bottom excircle, and the taper mouth of outer toper hopper is first discharge gate.

The air pipe is of a vertical cylindrical structure, the bottom of the air pipe is open, the upper part of the air pipe is conical, and the conical part is an air outlet pipe and is connected with an induced draft fan; and a feed inlet is formed in the side edge of the lower part of the air pipe and is directly connected with the spiral feeding pipe.

The pulse barrel is of a vertical cylindrical structure, the upper part of the pulse barrel is conical, and a feeding pipe connected with a draught fan is arranged in a conical shape; the bottom is an external conical hopper; a plurality of pulse cloth bags are distributed in the pulse barrel.

The working principle of the utility model is as follows, the fine powder after mechanical grinding is conveyed into a wide air pipe 3 through a spiral feeding pipe 2 in a hopper 1, the powder forms raise dust in the air pipe under the action of a draught fan 4, and the coarse non-flaky particles fall to a collector at the bottom of the air pipe under the action of gravity to be recycled and ground again through controlling the wind speed; the superfine powder and the powder with the sheet structure are output from the upper part of the air pipe into the pulse barrel 8 under the action of the wind force which is larger than the gravity; a plurality of pulse cloth bags 5 are distributed in the pulse barrel, and ultrafine powder and powder with a sheet structure can enter the cloth bags through the pulse cloth bags after meeting the pulse cloth bags; the powder with the sheet structure can not be adsorbed on the outer surface of the cloth bag through the cloth bag and can be scattered in the outer conical hopper 6 under the action of the pulse; the ultra-fine powder is scattered in the inner conical hopper 7; the discharge ports of the two conical hoppers are connected with a pulse collector, wherein the product at the discharge port 9 of the outer conical hopper is a finished product with high sheet structure content, and the product at the discharge port 10 of the inner conical hopper is a finished product of superfine powder with narrow particle size distribution.

The utility model has the advantages that the device of the utility model greatly improves the proportion of the flaky structure powder while reducing the content of coarse powder and fine powder through twice screening process, the particle size distribution of the pulse collected ultrafine powder is narrow, and the device can be applied to downstream enterprises with high requirements on the ultrafine powder; the coarse grain powder with a sheet structure can be continuously recycled and secondarily ground, and raw materials are fully utilized.

Drawings

FIG. 1 is a schematic view of a collecting apparatus for inorganic powder having a flake structure;

in the figure, 1 is a hopper; 2 is a spiral feeding pipe; 3 is an air duct; 4 is a draught fan; 5 is a pulse cloth bag; 6 is an external conical hopper; 7 is an inner tapered hopper; 8 is a pulse barrel; 9 is a first discharge port; and 10 is a second discharge hole.

Detailed Description

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

The embodiment provides a collection device of inorganic powder of lamellar structure, includes hopper 1, spiral conveying pipe 2, tuber pipe 3, pulse sack 5, draught fan 4 and pulse bucket 8.

The hopper 1 of the embodiment is connected with the feeding end of the spiral feeding pipe 2; the discharge end of the spiral feeding pipe 2 is connected with the feed inlet at the lower part of the air pipe 3; the top end of the air pipe 3 is connected with a top feed inlet of the pulse barrel 8 through an induced draft fan 4; a pulse cloth bag 5 is arranged in the pulse barrel 8, and an inner conical hopper 6 and an outer conical hopper 6 are arranged at the bottom of the pulse barrel 8; the wide opening of the inner conical hopper 7 is connected with the lower end of the pulse cloth bag 5, and the conical opening of the inner conical hopper 7 is a second discharge hole 10; the wide mouth of outer conical hopper 6 links as an organic whole with 8 bottom excircles of pulse bucket, and the taper mouth of outer conical hopper 6 is first discharge gate 9.

The working process of the device of the embodiment is as follows: fine powder which is mechanically ground is put into a hopper 1 and is conveyed into a wide air pipe 3 through a spiral feeding pipe; the powder forms dust in the air pipe 3 under the negative pressure of the draught fan 4; the coarse non-flaky particles fall to a collector at the bottom of the air pipe 3 by gravity to be recycled and ground again by controlling the air speed; the superfine powder and the powder with the sheet structure are output from the upper part of the air pipe into the pulse barrel 8 under the action of wind force which is larger than gravity, a plurality of pulse cloth bags 5 are distributed in the pulse barrel 8, and the superfine powder and the powder with the sheet structure can enter the pulse cloth bags 5 after meeting the pulse cloth bags 5; the powder with the sheet structure cannot be adsorbed on the outer surface of the cloth bag through the cloth bag; can be scattered in the outer conical hopper 6 under the action of pulse, and the ultrafine powder is scattered in the inner conical hopper 7; the two discharge ports 9 of the conical hoppers are connected with a pulse collector, wherein the product of the first discharge port 9 of the outer conical hopper is a finished product with high sheet structure content, and the product of the second discharge port 10 of the inner conical hopper is a finished product of superfine powder with narrow particle size distribution.

Claims

1. The device for collecting the inorganic powder with the flaky structure is characterized by comprising a hopper, a spiral feeding pipe, an air pipe, a pulse cloth bag, an induced draft fan and a pulse barrel; the hopper is connected with the feeding end of the spiral feeding pipe; the discharge end of the spiral feeding pipe is connected with the feed inlet at the lower part of the air pipe; the top end of the air pipe is connected with a top feed inlet of the pulse barrel through an induced draft fan; the pulse bucket is internally provided with a pulse cloth bag, and the bottom of the pulse bucket is provided with an inner conical hopper and an outer conical hopper; the wide opening of the inner conical hopper is connected with the lower end of the pulse cloth bag, and the conical opening of the inner conical hopper is a second discharge opening; the wide-mouth of outer toper hopper links as an organic wholely with pulse barrel bottom excircle, and the taper mouth of outer toper hopper is first discharge gate.

2. The device for collecting inorganic powder with sheet structure according to claim 1, wherein the air duct has a vertical cylindrical structure, an opening at the bottom, a conical shape at the top, and an air outlet pipe at the conical part, and is connected with an induced draft fan; and a feed inlet is formed in the side edge of the lower part of the air pipe and is directly connected with the spiral feeding pipe.

3. The device for collecting inorganic powder with a flake structure according to claim 1, wherein the pulse barrel is of a vertical cylindrical structure, the upper part of the pulse barrel is provided with a conical top, and a feeding pipe connected with an induced draft fan is arranged in a conical shape; the bottom is an external conical hopper; a plurality of pulse cloth bags are distributed in the pulse barrel.