CN214191770U

CN214191770U - Powder feeding device

Info

Publication number: CN214191770U
Application number: CN202023082140.8U
Authority: CN
Inventors: 王统; 许树强; 郑传伟; 陈彦彬
Original assignee: Dangsheng Science And Technology Changzhou New Materials Co ltd; Beijing Easpring Material Technology Co Ltd
Current assignee: Dangsheng Science And Technology Changzhou New Materials Co ltd; Beijing Easpring Material Technology Co Ltd
Priority date: 2020-12-18
Filing date: 2020-12-18
Publication date: 2021-09-14
Anticipated expiration: 2030-12-18

Abstract

The utility model relates to a battery manufacturing field discloses a powder feeding device, wherein, the powder feeding device includes hopper (10), fan (20) and dust removal unit, hopper (10) have dog-house (11) and overflow mouth (12), overflow mouth (12) connect in fan (20), fan (20) connect in dust removal unit, in order to pass through the air current that fan (20) produced is followed dust is collected and is carried to hopper (10) to dust removal unit. When powder materials are put in through the feeding port and dust is raised in the hopper, the air flow generated by the fan guides the dust to be guided out from the overflow port and collected and conveyed to the dust removal unit for dust removal, so that the dust is prevented from overflowing to the surrounding environment.

Description

Powder feeding device

Technical Field

The utility model relates to a battery production field specifically relates to powder throws material device.

Background

In the field of battery production, the raw materials used are mostly powder materials and are put into a storage bin in a ton bag form. Because the powder particles of the raw materials are small, dust is very easy to be raised and scattered and overflows in the feeding process, the irritation is strong, and discomfort can be caused after the human body inhales. In the prior art, the powder overflow can be reduced only by sealing and fixing the ton bag and the inlet of the feeding device, but the mode needs skilled manual operation and has higher requirement on operators. Moreover, even if the ton bag is sealed and fixed with the inlet of the feeding device, powder overflow is still caused for the powder feeding with very large feeding amount and very small particles at once.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the problem that powder materials existing in the prior art generate overflow when being put in, and providing a powder feeding device to reduce overflow.

In order to achieve the above object, an aspect of the present invention provides a powder feeding device, wherein, the powder feeding device includes a hopper, a fan and a dust removal unit, the hopper has a feeding port and an overflow port, the overflow port is connected to the fan, the fan is connected to the dust removal unit, so as to pass through the air flow generated by the fan is followed the dust is collected by the hopper and is transported to the dust removal unit.

Optionally, the dust removal unit includes a filter disposed between the overflow port and the fan.

Optionally, the dust removing unit includes a blowback unit for blowback the high-pressure airflow to the filter.

Optionally, the dust removal unit includes a pulse dust collector, the pulse dust collector includes the filter and the blowback unit, the pulse dust collector has a first outlet, and the first outlet is connected to the fan through an overflow pipe.

Optionally, a first valve is arranged in the overflow pipeline, the pulse dust collector is provided with a second outlet connected to the atmosphere, and a second valve is arranged at the second outlet.

Optionally, the pulse dust collector includes the entry and follows the airflow direction of fan is located the third export of filter upper reaches, the third exit linkage has the conveying pipeline, the third export with the entry is provided with third valve and fourth valve respectively, it is provided with the fifth valve to throw material mouthful department.

Optionally, the powder feeding device comprises a charging bucket, and the tail end of the conveying pipe extends into the charging bucket.

Optionally, the powder feeding device includes a ton bag entrainment mechanism and/or a sixth valve disposed at the feeding port.

Optionally: the feeding port and the overflow port are positioned at the top of the hopper at intervals; and/or a discharge hole is formed in the bottom of the hopper, and a seventh valve is arranged at the discharge hole.

Optionally, the dust removing unit includes a water dust removing portion connected downstream of the fan in the direction of the air flow.

Through above-mentioned technical scheme, put in the powder material through the dog-house and when raising the dust in the hopper, the air current that the fan produced will guide the dust to derive and collect and carry to the dust removal unit from the overflow mouth and remove dust to avoid the dust to overflow to the surrounding environment.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the powder feeding device of the present application.

Description of the reference numerals

10-hopper, 11-feeding port, 12-overflow port, 13-fifth valve, 14-discharge port, 15-sixth valve, 20-blower, 30-pulse dust remover, 31-filter, 32-back blowing unit, 33-first outlet, 34-second outlet, 35-second valve, 36-inlet, 37-third outlet, 38-third valve, 39-fourth valve, 40-overflow pipeline, 41-first valve, 50-dust removal pipeline, 70-conveying pipeline, 80-barrel, 90-ton bag clamping mechanism, 100-water dust removal part, B-ton bag, B1-outer bag and B2-inner bag.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.

In the present invention, unless otherwise specified, the use of directional terms such as "upper, lower, left, and right" generally means upper, lower, left, and right as illustrated with reference to the accompanying drawings; "inner and outer" refer to the inner and outer relative to the profile of the components themselves. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

The application provides a material device is thrown to powder, wherein, material device is thrown to powder includes hopper 10, fan 20 and dust removal unit, hopper 10 has dog-house 11 and excessive mouth 12, excessive mouth 12 connect in fan 20, fan 20 connect in dust removal unit is in order to pass through the air current that fan 20 produced is followed hopper 10 is collected the dust and is carried extremely dust removal unit.

When powder material is fed through the feeding port 11 to raise dust in the hopper 10, the air flow generated by the fan 20 guides the dust to be discharged from the overflow port 12 and collected and conveyed to the dust removal unit for dust removal, so that the dust is prevented from overflowing to the surrounding environment.

The powder feeding device is suitable for the production field of various powder materials, and is particularly suitable for the battery production field.

Specifically, as shown in fig. 1, the airflow generated by the fan 20 guides the dust in the hopper 10 in the direction indicated by the arrow to be guided out of the hopper 10 from the overflow port 12 and collected in the dust removing unit for dust removal processing.

Wherein the dust removing unit may take various suitable forms, for example, the dust removing unit may include a filter 31 disposed between the overflow 12 and the fan 20. In use, dust guided out of the overflow aperture 12 passes through the filter 31 to be filtered by the filter 31.

In order to prevent the filter 31 from being clogged with dust after a long period of use, the dust removing unit may preferably include a blowback unit 32 for blowing back a high-pressure air flow toward the filter 31. By providing the blowback unit 32, an air flow in a direction opposite to the air flow direction generated by the fan 20 can be supplied to the filter 31 as needed to blow off the dust adsorbed on the filter 31. Most of the blown-off dust may be returned to the hopper 10 to be settled and collected in the hopper 10, and a small amount of dust may be scattered and filtered again through the filter 31.

It can be understood that the back-blowing operation of the back-blowing unit 32 is only performed periodically and in a short time, so that the back-blowing operation can be performed while the blower 20 is turned on, and since the back-blowing airflow is a high-pressure airflow (the fluid pressure is greater than the airflow of the blower 20), no dust overflow is caused. Of course, the blowback may also be performed in the case where the blower 20 is stopped.

To simplify the structure, the filter 31 and the blowback unit 32 may be integrally provided. Specifically, the dust removing unit includes a pulse dust remover 30, the pulse dust remover 30 includes the filter 31 and the blowback unit 32, the pulse dust remover 30 has a first outlet 33, and the first outlet 33 is connected to the fan 20 through an overflow pipe 40. By providing the pulse dust collector 30, on the one hand, the filter 31 and the blowback unit 32 are integrated, and on the other hand, the start time, the operation time, etc. (i.e., the frequency of the pulses) of the blowback unit 32 can be set as required.

In addition, as shown in fig. 1, preferably, a first valve 41 may be disposed in the overflow duct 40, and the pulse dust collector 30 may have a second outlet 34 connected to the atmosphere, and a second valve 35 may be disposed at the second outlet 34. When the dust is collected by the blower 20, the first valve 41 is opened, and when the back blowing is required, the second valve 35 is opened, and selectively only the blower 20 is turned off or both the blower 20 and the first valve 41 are turned off.

By providing the second outlet 34, after the feeding is finished (no dust is raised in the hopper 10), the second outlet 34 is communicated with the atmosphere by opening the second valve 35, so that the atmosphere is balanced in the hopper 10 to maintain the pressure in the hopper 10. Also, as described above, at the time of the back blowing, the second valve 35 may be opened with the blower 20 turned off to release the air flow generated by the back blowing.

Furthermore, a suction operation can be performed using the third outlet 37. Specifically, the pulse dust collector 30 includes an inlet 36 and a third outlet 37 located upstream of the filter 31 along the airflow direction of the fan 20, the third outlet 37 is connected to a material conveying pipe 70, a third valve 38 and a fourth valve 39 are respectively disposed at the third outlet 37 and the inlet 36, and a fifth valve 13 is disposed at the material feeding port 11. When a material sucking operation is required, the fan 20 and the third valve 38 are opened, the fourth valve 39 is closed, and the material is sucked into the filter 31 by the air flow generated by the fan 20 through the material conveying pipe 70 and is intercepted by the filter 31. After a predetermined time, the blower 20 and the third valve 38 may be closed, the fourth valve 39 may be opened, and the blowback unit 32 may be activated to blow the material intercepted at the filter 31 into the hopper 10.

To facilitate the suction of the material through the third outlet 37, the powder feeding device may include a hopper 80, and the end of the feed pipe 70 extends into the hopper 80. In use, material may be placed in the bucket 80 for suction through the delivery conduit 70. The material put into the charging basket 80 may be a powder material with small dust emission, but the charging basket 80 may also be used as a spare material pool.

The material to be fed using the feed opening 11 is typically a powder with smaller particles, which is typically transported in a ton bag B. The ton bag B comprises an outer bag B1 and an inner bag B2, the mouth of the outer bag B1 and the mouth of the inner bag B2 being connected by a tether operated from the outside, the material being contained in the inner bag B2.

In use, in order to fix the ton bag at the feeding port 11, the powder feeding device comprises a ton bag clamping mechanism 90 arranged at the feeding port 11. The ton bag entrainment mechanism 90 may include a clamp for securing the mouth edge of the outer bag B1 of the ton bag B. During installation, the mouth of the inner bag B2 is first opened, and no material can be discharged from the inner bag because the inner bag B2 and the outer bag B1 are still connected by a tether. Then, the outer bag B1 is fixed by the ton bag clamp mechanism 90. Finally, the tether is opened, and the materials in the inner bag B2 can be fed through the feeding port 11. In addition, a fifth valve 13 may be disposed at the feeding port 11.

In order to avoid the influence of the air flow of the fan 20 on the normal material throwing operation from the feeding port 11, the feeding port 11 and the overflow port 12 should be arranged at intervals. Preferably, the feeding opening 11 and the overflow opening 12 should have the same orientation. In order to facilitate the material to settle in the hopper 10 by gravity after being placed, the feeding opening 11 and the overflow opening 12 are preferably spaced apart at the top of the hopper 10. In particular, the hopper 10 has a top cover on which the inlet 11 and the overflow 12 are arranged at intervals.

In addition, in order to facilitate discharging from the hopper 10, a discharge hole 14 is provided at the bottom of the hopper 10, and a sixth valve 15 is provided at the discharge hole 14. During the charging process, the sixth valve 15 is closed, and the sixth valve 15 is opened only during the discharging process.

In addition, to prevent dust from overflowing through the filter 31, the dust removing unit includes a water dust removing part 100 connected downstream of the fan 20 in the direction of the air flow. Specifically, the water dust removing part 100 may be connected to the fan 20 through the dust removing duct 50 to guide the dust-laden air flow passing through the filter 31 and the fan 20 into the water dust removing part 100 for water dust removal treatment. The dust is collected by being precipitated in the water dust removing part 100.

Various modes of operation of embodiments of the present application are described below with reference to the accompanying drawings.

1. Feeding mode

The first valve 41, the fourth valve 39 and the fifth valve 13 are opened, the second valve 35, the third valve 38 and the sixth valve 15 are closed, the ton bag B is fixed on the ton bag clamping mechanism 90 to feed from the feeding port 11, the fan 20 is simultaneously opened to guide the dust during feeding out from the overflow port 12 to be filtered by the filter 31, and a small amount of dust passing through the filter 31 can be collected by the water dust removing part 100.

During the feeding process, the back-blowing unit 32 can perform back-blowing with a predetermined frequency and a predetermined duration to avoid the filter 31 from being blocked.

2. Suction mode

The fifth valve 13, the sixth valve 15, the fourth valve 39 and the second valve 35 are closed, the first valve 41 and the third valve 38 are opened, and the blower 20 is opened to suck the materials from the charging basket 80 through the material conveying pipe 70, so that the materials are intercepted by the filter 31. After a predetermined time, the first valve 41 and the third valve 38 are closed, the fourth valve 39 and the second valve 35 are opened, and the blowback unit 32 is opened to blow the materials intercepted by the filter 31 into the hopper 10.

3. Maintenance mode

The first valve 41, the third valve 38, the fifth valve 13 and the sixth valve 15 are closed and the second valve 35 and the fourth valve 39 are opened to equalize the pressure in the hopper 10 with the atmosphere.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto. The technical scheme of the utility model in the technical conception scope, can be right carry out multiple simple variant. The present application includes the combination of individual features in any suitable manner. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations. These simple variations and combinations should also be considered as disclosed in the present invention, all falling within the scope of protection of the present invention.

Claims

1. The powder feeding device is characterized by comprising a hopper (10), a fan (20) and a dust removal unit, wherein the hopper (10) is provided with a feeding port (11) and an overflow port (12), the overflow port (12) is connected to the fan (20), and the fan (20) is connected to the dust removal unit so as to collect dust from the hopper (10) through an air flow generated by the fan (20) and convey the dust to the dust removal unit.

2. Powder dosing device according to claim 1, wherein the dust removal unit comprises a filter (31) arranged between the overflow (12) and the fan (20).

3. Powder dosing device according to claim 2, wherein the dust removal unit comprises a blowback unit (32) for blowback of high pressure gas flow to the filter (31).

4. Powder dosing device according to claim 3, wherein the dust removing unit comprises a pulse dust collector (30), wherein the pulse dust collector (30) comprises the filter (31) and the blowback unit (32), wherein the pulse dust collector (30) has a first outlet (33), and wherein the first outlet (33) is connected to the fan (20) by an overflow duct (40).

5. Powder feeding device according to claim 4, wherein a first valve (41) is arranged in the overflow pipe (40), the pulse dust collector (30) has a second outlet (34) connected to the atmosphere, and a second valve (35) is arranged at the second outlet (34).

6. The powder feeding device of claim 5, wherein the pulse dust collector (30) comprises an inlet (36) and a third outlet (37) located at the upstream of the filter (31) along the airflow direction of the fan (20), the third outlet (37) is connected with a material conveying pipe (70), a third valve (38) and a fourth valve (39) are respectively arranged at the third outlet (37) and the inlet (36), and a fifth valve (13) is arranged at the feeding port (11).

7. A powder dosing device as claimed in claim 6, characterised in that the powder dosing device comprises a barrel (80), and the end of the feed conveyor pipe (70) extends into the barrel (80).

8. A powder dosing device according to any of claims 1-7, comprising a ton bag entrainment mechanism (90) and/or a sixth valve (15) arranged at the dosing port (11).

9. A powder charging device according to any one of claims 1-7, wherein:

the feeding port (11) and the overflow port (12) are positioned at the top of the hopper (10) at intervals; and/or the presence of a gas in the gas,

a discharge hole (14) is formed in the bottom of the hopper (10), and a seventh valve (16) is arranged at the discharge hole (14).

10. A powder dosing device according to any one of claims 1-7, wherein the dust removal unit comprises a water dust removal section (100) connected downstream of the fan (20) in the direction of the air flow.