CN214269368U - Feeding device for solid powder - Google Patents

Abstract

The utility model relates to a solid powder throws material device, the use that mainly solves existence among the prior art has the filter throw the material device and carry out the solid powder when throwing the material powder easy caking of powder, block up the filter screen, lead to the filter screen to change frequent problem. The utility model adopts a solid powder feeding device, which comprises a vacuum hopper 1, a filter 2, a vacuum generator 3, a vacuum pump 4 and a blowing cylinder 7; wherein the top of the vacuum hopper 1 is connected with the filter 2, and a material outlet at the bottom is provided with a pneumatic butterfly valve 9; a filter screen 24, a fixed bracket 23 and a rotating shaft 21 which are vertically arranged are arranged in the filter 2, and the rotating shaft 21 is connected with a motor 22; the upper part of the filter 2 is sequentially connected with a vacuum generator 3 and a vacuum pump 4; the suction port 5 is positioned at the lower part of the outer side surface of the filter 2; the technical scheme that the purging cylinder 7 is positioned at the upper part of the outer side surface of the filter 2 better solves the problem and can be used for feeding solid powder.

Description

Feeding device for solid powder

Technical Field

The utility model relates to a chemical industry field especially relates to a solid powder throws material device.

Background

In the chemical industry, the throwing material process of solid powder has the raise dust phenomenon usually, both endangers operating personnel's healthy, causes dust pollution easily again, so the negative pressure is taken out the material and is become more and more important powder and throw the material mode, and the negative pressure is taken out the material and need be with the help of the vacuum pumping action of vacuum pump, so the negative pressure is taken out the material in-process and still can appear the powder and block up the problem of vacuum pipe, influences normal production efficiency, consequently, needs to improve the device that the material was thrown to the powder.

Chinese patent CN201921090239.7 discloses a powder feeding device, which comprises: draught fan, dust bag, pressure release mouth and deep bead can adsorb more powder on throwing material in-process dust bag, easily produces the raise dust phenomenon through the pressure release mouth, need artifical the light clap dust bag and let the dust drop down, complex operation, production efficiency is not high.

Chinese patent CN206307734U discloses a full-automatic capsule filling adds powder device, including vacuum generator, feed bin, container bucket and vacuum suction pump, vacuum generator sets up on the feed bin, and vacuum generator connects compressed air blowback pipeline, and the feed bin is connected and is inhaled the material pipe, and vacuum suction pump is connected to container bucket bottom discharge gate. The automatic continuous supply of the powder is realized through the double vacuum material suction devices, the process of adding the powder by hands without stopping is omitted, the labor intensity of workers is reduced, the production efficiency is improved, the volatilization of dust is effectively prevented, and the harm to a human body caused by the suction of the dust is avoided; however, the filter arranged between the bin and the vacuum generator is fixedly connected, when the solid powder contains moisture or the powder is easy to absorb moisture, the powder is easy to accumulate and agglomerate on the filter, so that the filter screen of the filter is easy to be frequently blocked, and the filter needs to be frequently cleaned or replaced, thereby occupying a large amount of working hours.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the use that exists among the prior art has the filter throws the material device and carries out the solid powder when throwing the material powder easy caking, block up the filter screen, leads to the filter screen to change frequent problem, provides a solid powder throws the material device, and the device has the powder when carrying out the solid powder and throwing the material difficult caking, the filter screen is difficult for blockking up, the filter screen advantage that the frequency is low is changed to the filter screen.

In order to solve the technical problem, the utility model discloses a technical scheme as follows: a feeding device for solid powder comprises a vacuum hopper 1, a filter 2, a vacuum generator 3, a vacuum pump 4, a suction port 5, a suction pipeline 6, a material barrel 10, a purging cylinder 7, a gas pipeline 8 and a gas source 11, and is characterized in that a rotatable filtering device is arranged in the filter 2 and consists of a rotating shaft 21, a motor 22, a fixed support 23 and a filter screen 24; wherein the content of the first and second substances,

the top of the vacuum hopper 1 is connected with the filter 2, the bottom of the vacuum hopper is provided with a material outlet, and a pneumatic butterfly valve 9 is arranged at the material outlet;

a filter screen 24, a fixed support 23 and a rotating shaft 21 which are vertically arranged are arranged in the filter 2, the rotating shaft 21 is connected with the motor 22, the rotating shaft 21 is fixedly connected with the fixed support 23 through a top connection point 25 and a bottom connection point 26, the filter screen 24 is connected with the rotating shaft 21 and the fixed support 23, and the upper part of the filter 2 is sequentially connected with the vacuum generator 3 and the vacuum pump 4;

the material suction port 5 is positioned at the lower part of the outer side surface of the filter 2, and the material suction port 5 is connected with the material barrel 10 through a material suction pipeline 6;

the purging cylinder 7 is positioned at the upper part of the outer side surface of the filter 2, and the purging cylinder 7 is connected with a gas source 11 through a gas pipeline 8.

Further, the filter net 24 inside the filter 2 is a sheet-shaped filter net.

Further, the fixing bracket 23 is composed of a top ring bracket 271, a bottom ring bracket 272, a top cross beam 281, a bottom cross beam 282 and a side support bar 29.

Furthermore, there are at least two top cross beams 281 and bottom cross beams 282; at least three side support rods 29 are provided; the inner sides of the top annular support 271 and the bottom annular support 272 are provided with a clamping groove.

Furthermore, a vertical clamping groove is formed in the outer wall of the rotating shaft 21, and the filter screen 24 is connected with the rotating shaft 21 and the fixed support 23 through the clamping groove in an inserting manner.

Further, the air source 11 is compressed air, and the pressure range of the air source is 0.3-1.0 Mpa.

Furthermore, the opening of the pneumatic butterfly valve 9 is adjustable, and the discharging speed of the vacuum hopper 1 can be controlled.

Further, the volume range of the vacuum hopper 1 is 0.5-3 m³。

Further, the vacuum pump 4 is a roots pump, the power range is 10-40 Kw, and the conveying capacity is 1000-5000 kg/h.

The utility model provides a feeding device of solid powder, which is characterized in that a filter is additionally arranged between a vacuum hopper and a vacuum generator, a vertically arranged flaky filter screen is arranged in the filter, a rotating shaft in the filter is connected with a motor, the rotating speed of the filter can be adjusted by the motor, and in the process of vacuum material suction, on one hand, the powder can not be accumulated and agglomerated on the filter screen because the filter screen is always in a rotating state, even if part of the powder is adsorbed on the filter screen, the powder can be thrown into the vacuum hopper under the action of centrifugal force; on the other hand, the upper part of the outer side surface of the filter is connected with a blowing cylinder, and powder adsorbed on the filter screen can be blown into the vacuum hopper by using the blowing effect of compressed air, so that the device has the double effects of desorbing the adsorbed powder, the filter screen is not easy to block, the cleaning or replacing frequency of the filter screen is reduced, and the service life is prolonged; and the flaky filter screen can be packed into the filter in the mode of inserting and embedding in the filter of this device, and it is more convenient and fast to change, practices thrift man-hour, has improved production efficiency, has better technological effect.

Drawings

Fig. 1 is a schematic structural diagram of a feeding device for solid powder provided by the present invention.

In the attached figure 1, 1 is a vacuum hopper, 2 is a filter, 3 is a vacuum generator, 4 is a vacuum pump, 5 is a suction port, 6 is a suction pipeline, 7 is a purging cylinder, 8 is a gas pipeline, 9 is a pneumatic butterfly valve, 10 is a material barrel, and 11 is a gas source.

Fig. 2 is a schematic view of the rotatable filter unit inside the filter 2.

In fig. 2, 21 is a rotating shaft, 22 is a motor, 23 is a fixed support, and 24 is a filter screen.

Fig. 3 is a schematic view of the structure of the fixing bracket 23 in the filter 2.

In FIG. 3, 25 is the top connection point, 26 is the bottom connection point, 271 is the top ring support, 272 is the bottom ring support, 281 is the top cross member, 282 is the bottom cross member, and 29 is the side support bar.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

[ example 1 ]

A feeding device for solid powder comprises a vacuum hopper 1, a filter 2, a vacuum generator 3, a vacuum pump 4, a suction port 5, a suction pipeline 6, a blowing cylinder 7, a gas pipeline 8, a pneumatic butterfly valve 9, a material barrel 10 and a compressed air source 11; wherein the top of the vacuum hopper 1 is connected with the filter 2, and a pneumatic butterfly valve 9 is arranged at a material outlet at the bottom; a filter screen 24, a fixed support 23 and a rotating shaft 21 which are vertically arranged are arranged in the filter 2, the rotating shaft 21 is connected with the motor 22, and the filter screen 24 is connected with the rotating shaft 21 and the fixed support 23 through clamping grooves; the upper part of the filter 2 is sequentially connected with a vacuum generator 3 and a vacuum pump 4; the material suction port 5 is positioned at the lower part of the outer side surface of the filter 2, and the material suction port 5 is connected with the material barrel 10 through a material suction pipeline 6; the purging cylinder 7 is positioned at the upper part of the outer side surface of the filter 2, and the purging cylinder 7 is connected with a compressed air source 11 through a gas pipeline 8.

The specific implementation process is as follows:

(1) starting the motor 22 and the vacuum pump 4, sucking solid powder in the material barrel 10 into the filter 2 through the material sucking pipeline 6 and the material sucking port 5, and dropping into the vacuum hopper 1 under the action of gravity, wherein the filter screen 24 is always in a rotating state in the material sucking process, so that the powder is difficult to adsorb onto the filter screen 24, and part of the powder adsorbed onto the filter screen 24 drops into the vacuum hopper under the action of centrifugal force; meanwhile, compressed air is adopted to blow the filter screen 24 through the blowing cylinder 7, so that the adsorbed materials are blown into the vacuum hopper;

(2) the bottom discharging speed of the vacuum hopper is controlled by reasonably adjusting the opening of the pneumatic butterfly valve 9 in the whole material suction process;

(3) when a lot of powder is adsorbed on a certain filter screen 24, the filter screen is extracted, and the clean filter screen is replaced.

In the production feeding process, the filter screen is not easy to block, the whole feeding device for solid powder continuously operates for 2 months without blocking, and the common feeding device for solid powder is adopted, so that the filter screen needs to be cleaned or replaced in 7 days on average due to the fact that powder is accumulated and caked on the filter screen.

It is visible, adopt the utility model provides a throw material device of solid powder, the vacuum is inhaled material in-process filter screen and is in the rotation state always, solid powder hardly piles up the caking on the filter screen, the filter screen is difficult for blockking up, blow and sweep the cylinder continuously of filter screen simultaneously in addition, even there is some powder to adsorb on the filter screen, also can be blown into in the vacuum hopper, thereby solve the powder and pile up on the filter screen, block up the problem of filter screen, the washing or the change frequency of filter screen has been reduced, and the filter screen is packed into with the mode of inserting and inlaying, it is convenient to change, better technological effect has, can be used to throw of solid powder and expect in the application.

Claims (9)

1. A feeding device for solid powder comprises a vacuum hopper (1), a filter (2), a vacuum generator (3), a vacuum pump (4), a suction port (5), a suction pipeline (6), a material barrel (10), a purging cylinder (7), a gas pipeline (8) and a gas source (11), and is characterized in that a rotatable filtering device is arranged in the filter (2), and the rotatable filtering device consists of a rotating shaft (21), a motor (22), a fixed support (23) and a filter screen (24); wherein the content of the first and second substances,

the top of the vacuum hopper (1) is connected with the filter (2), the bottom of the vacuum hopper is provided with a material outlet, and a pneumatic butterfly valve (9) is arranged at the material outlet;

a filter screen (24), a fixed support (23) and a rotating shaft (21) which are vertically arranged are arranged in the filter (2), the rotating shaft (21) is connected with a motor (22), the rotating shaft (21) is fixedly connected with the fixed support (23) through a top connecting point (25) and a bottom connecting point (26), the filter screen (24) is connected with the rotating shaft (21) and the fixed support (23), and the upper part of the filter (2) is sequentially connected with a vacuum generator (3) and a vacuum pump (4);

the material suction port (5) is positioned at the lower part of the outer side surface of the filter (2), and the material suction port (5) is connected with the material barrel (10) through a material suction pipeline (6);

the purging cylinder (7) is located on the upper portion of the outer side face of the filter (2), and the purging cylinder (7) is connected with the gas source (11) through the gas pipeline (8).

2. The solid powder feeding device of claim 1, wherein: the filter screen (24) in the filter (2) is a sheet filter screen.

3. The solid powder feeding device of claim 1, wherein: the fixed support (23) consists of a top annular support (271), a bottom annular support (272), a top cross beam (281), a bottom cross beam (282) and a side support rod (29).

4. The solid powder feeding device of claim 3, wherein: the number of the top surface cross beams (281) and the number of the bottom surface cross beams (282) are at least two; at least three side supporting rods (29); the inner sides of the top annular support (271) and the bottom annular support (272) are provided with clamping grooves.

5. The solid powder feeding device of claim 1, wherein: the filter screen is characterized in that a vertical clamping groove is formed in the outer wall of the rotating shaft (21), and the filter screen (24) is connected with the rotating shaft (21) and the fixed support (23) through the clamping groove in an inserting and embedding mode.

6. The solid powder feeding device of claim 1, wherein: the air source (11) is compressed air, and the pressure range of the air source is 0.3-1.0 Mpa.

7. The solid powder feeding device of claim 1, wherein: the opening of the pneumatic butterfly valve (9) is adjustable, and the discharging speed of the vacuum hopper (1) can be controlled.

8. The solid powder feeding device of claim 1, wherein: the volume range of the vacuum hopper (1) is 0.5-3 m³。

9. The solid powder feeding device of claim 1, wherein: the vacuum pump (4) is a roots pump, the power range is 10-40 Kw, and the conveying capacity is 1000-5000 kg/h.

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