CN217448964U

CN217448964U - Pneumatic fine powder recovery device

Info

Publication number: CN217448964U
Application number: CN202220943596.9U
Authority: CN
Inventors: 毛国华
Original assignee: Foshan Nuoxinko Technology Co ltd
Current assignee: Foshan Nuoxinko Technology Co ltd
Priority date: 2022-04-22
Filing date: 2022-04-22
Publication date: 2022-09-20
Anticipated expiration: 2032-04-22

Abstract

The utility model relates to the technical field of ceramic building material production equipment, in particular to a pneumatic fine powder recovery device, which comprises a dust remover and a spray tower, wherein the dust remover is respectively connected with a qualified dust exhaust pipe and a circulating intake pipe, the lower end of the dust remover is communicated with a dust hopper, and the lower end of the dust hopper is communicated with a pneumatic recovery assembly; the lower end of the spraying tower is provided with a hopper, and the air suction end of the circulating air inlet pipe is communicated with the upper end of the hopper, so that unqualified dust is sucked into the dust remover from the circulating air inlet pipe; the pneumatic recovery assembly comprises a pneumatic conveying pipeline and a pneumatic driving part, one end of the pneumatic conveying pipeline is respectively communicated with the pneumatic driving part and the dust collecting hopper, and the other end of the pneumatic conveying pipeline is communicated with the spraying tower; this pneumatic fine powder recovery unit uses pneumatic drive portion to spray the spray tower in with the dust hopper dust is quick and recycle, and conveying efficiency is high to improve production efficiency, the powder can prevent excessive polluted environment in the recovery process moreover.

Description

Pneumatic fine powder recovery device

Technical Field

The utility model belongs to the technical field of ceramic building material production facility technique and specifically relates to a pneumatic fine powder recovery unit that says so.

Background

In the production process of ceramic building materials, spray drying towers are generally adopted to produce powdery products. The working principle of the spray drying tower is that air enters an air distributor at the top of the drying tower through a filter and a heater and then uniformly enters a drying chamber in a spiral shape; the feed liquid forms mist-like liquid drops through the atomizer, the mist-like liquid drops are in parallel flow contact with hot air, water is rapidly evaporated, and the powder product is dried in a very short time.

In the actual production process of the spray drying tower, the produced powder products have fine powder with different sizes, qualified products are discharged through a hopper, but some unqualified products are discharged together through waste gas, and the waste gas and the unqualified fine powder are recycled in order to improve the utilization rate.

For example, chinese patent document No. cn202110841955.x discloses a circulating slurry tank fine powder recovery device and a powder recovery pulping process, which includes a spray tower, a dust removal device, a slurry tank and a slurry blending structure; the spraying tower is provided with an airflow inlet, a waste gas outlet and a finished product discharge port, and the airflow inlet, the waste gas outlet and the finished product discharge port are distributed from top to bottom along the gravity direction in a working state; an atomization spraying device communicated with a slurry source is also arranged in the spraying tower; the dust removal device is arranged to be used for purifying the powder gas discharged from the waste gas outlet, the dust removal device is arranged to be used for discharging the collected powder into the slurry tank, and the water tank is connected with the slurry tank. The dust removing device filters and collects the fine powder in the waste gas, the collected fine powder passes through the fine powder recovery device, is stirred uniformly again according to a certain proportion to form slurry, and the slurry is supplied to the spray drying tower for continuous use.

In the structure, although the dust remover can be directly used for screening the fine powder in the waste gas, the screened fine powder is recycled to the slurry tank through the conveyor belt and then is conveyed to the spray drying tower for use, the recycling process is long, the efficiency is low, and the powder is easy to overflow to pollute the environment.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects existing in the prior art, the utility model provides a pneumatic fine powder recovery device, which aims to solve the problems.

The utility model provides a technical scheme that its technical problem adopted is: a pneumatic fine powder recovery device comprises a dust remover and a spray tower, wherein the dust remover is respectively connected with a qualified dust exhaust pipe and a circulating air inlet pipe, the lower end of the dust remover is communicated with a dust hopper, and the lower end of the dust hopper is communicated with a pneumatic recovery assembly;

the lower end of the spraying tower is provided with a hopper, and the air suction end of the circulating air inlet pipe is communicated with the upper end of the hopper, so that unqualified dust is sucked into the dust remover from the circulating air inlet pipe;

the pneumatic recovery assembly comprises a pneumatic conveying pipeline and a pneumatic driving part, one end of the pneumatic conveying pipeline is respectively communicated with the pneumatic driving part and the dust collecting hopper, and the other end of the pneumatic conveying pipeline is communicated with the spraying tower.

Furthermore, the lower end of the dust collecting hopper is provided with a flashboard, the lower end of the flashboard is provided with a star-shaped feeder, the lower end of the star-shaped feeder is communicated with a spiral pneumatic conveying pump, one side of the spiral pneumatic conveying pump is communicated with a pneumatic conveying pipeline, and the other side of the spiral pneumatic conveying pump is communicated with a fan.

Specifically, a vibrator is mounted to a lower portion of the dust hopper.

Specifically, the shutter is a manual shutter.

Specifically, the blower is a roots blower.

Furthermore, the dust remover is at least three, the at least three dust removers are communicated with the qualified dust exhaust pipe and the circulating air inlet pipe, and the dust remover is a cyclone dust remover or a bag-type dust remover.

Furthermore, the dust collecting hopper is arranged in the dust recovery frame, and the spraying tower is arranged on the spraying tower frame.

Furthermore, a slurry conveying pipe and a slurry atomizing head are arranged in the spraying tower, and the pneumatic conveying pipeline is communicated with the slurry conveying pipe.

The utility model has the advantages that:

1. pneumatic pipeline through the pneumatic subassembly of retrieving communicates dust hopper and spray tower, uses the pneumatic drive portion to recycle in spouting the spray tower with the dust hopper dust is quick, and conveying efficiency is high to improve production efficiency, the powder can prevent excessive polluted environment in the recovery process moreover.

2. The star-shaped feeder can better separate and recycle powder into a pneumatic conveying pipeline by matching with a spiral pneumatic conveying pump, and the recycling efficiency is better.

Drawings

Fig. 1 is a schematic structural view of the dynamic fine powder recovery device of the present invention.

Fig. 2 is an enlarged schematic view of a portion a in fig. 1.

In the figure: the device comprises a qualified dust exhaust pipe 1, a dust remover 2, a dust recovery frame 3, a dust hopper 4, a pneumatic conveying pipeline 5, a circulating air inlet pipe 6, a spraying tower frame 7, a spraying tower 8, a hopper 9, a fan 10, a vibrator 11, a flashboard 12, a star-shaped feeder 13 and a spiral pneumatic conveying pump 14.

Detailed Description

The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

The pneumatic fine powder recovery device shown by combining fig. 1 and fig. 2 comprises a dust remover 2 and a spray tower 8, wherein the spray tower 8 is installed on a spray tower frame 7, a slurry conveying pipe and a slurry atomizing head are arranged in the spray tower 8, and the pneumatic conveying pipe 5 is communicated with the slurry conveying pipe.

As shown in fig. 1, be connected with qualified dust blast pipe 1 and circulation intake pipe 6 on the dust remover 2 respectively, the lower extreme intercommunication of dust remover 2 has dust hopper 4, and dust hopper 4 installs in dust recovery frame 3, and pneumatic recovery subassembly is installed in the lower extreme intercommunication of dust hopper 4, and wherein, dust remover 2 is provided with threely, and three dust remover 2 all is linked together with qualified dust blast pipe 1 and circulation intake pipe 6, and for better separation dust, dust remover 2 adopts cyclone or sack cleaner.

The lower end of the spraying tower 8 is provided with a hopper 9, and the air suction end of the circulating air inlet pipe 6 is communicated with the upper end of the hopper 9, wherein the air suction end faces downwards, so that unqualified dust is sucked into the dust remover 2 from the circulating air inlet pipe 6.

The pneumatic recovery assembly comprises a pneumatic conveying pipeline 5 and a pneumatic driving part, one end of the pneumatic conveying pipeline 5 is respectively communicated with the pneumatic driving part and the dust hopper 4, and the other end of the pneumatic conveying pipeline is communicated with the spraying tower 8.

In this embodiment, the lower end of the dust collecting hopper 4 is provided with a gate plate 12, the lower end of the gate plate 12 is provided with a star-shaped feeder 13, wherein the gate plate 12 is a manual gate plate, the lower end of the star-shaped feeder 13 is communicated with a screw pneumatic conveying pump 14, one side of the screw pneumatic conveying pump 14 is communicated with the pneumatic conveying pipeline 5, and the other side is communicated with a fan 10, wherein the fan 10 is a roots blower, and the star-shaped feeder 13 can better separate and recycle powder into the pneumatic conveying pipeline 5 by matching with the screw pneumatic conveying pump 14, so that the recycling efficiency is better.

In order to smoothly drop the dust in the dust hopper 4 into the shutter 12, a vibrator 11 is attached to a lower portion of the dust hopper 4 to drop the dust by vibration.

The utility model discloses a pneumatic conveying pipeline 5 of pneumatic recovery subassembly is with dust hopper and 8 intercommunications of spray tower, uses the pneumatic drive portion to recycle in spraying 8 of dust hopper 4 dust is quick, and conveying efficiency is high to improve production efficiency, the powder all goes on under the sealed environment of pipeline in the recovery process moreover, can prevent excessive polluted environment, qualified dust can further be collected to qualified dust blast pipe 1.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.

Claims

1. A pneumatic fine powder recovery device comprises a dust remover (2) and a spray tower (8), and is characterized in that:

the dust remover (2) is respectively connected with a qualified dust exhaust pipe (1) and a circulating air inlet pipe (6), the lower end of the dust remover (2) is communicated with a dust hopper (4), and the lower end of the dust hopper (4) is communicated with a pneumatic recovery assembly;

the lower end of the spray tower (8) is provided with a hopper (9), and the air suction end of the circulating air inlet pipe (6) is communicated with the upper end of the hopper (9) so as to suck unqualified dust into the dust remover (2) from the circulating air inlet pipe (6);

the pneumatic recovery assembly comprises a pneumatic conveying pipeline (5) and a pneumatic driving part, one end of the pneumatic conveying pipeline (5) is respectively communicated with the pneumatic driving part and the dust hopper (4), and the other end of the pneumatic conveying pipeline is communicated with the spraying tower (8).

2. The pneumatic fine powder recovery device as claimed in claim 1, wherein the lower end of the dust hopper (4) is provided with a shutter plate (12), the lower end of the shutter plate (12) is provided with a star-shaped feeder (13), the lower end of the star-shaped feeder (13) is communicated with a screw pneumatic conveying pump (14), one side of the screw pneumatic conveying pump (14) is communicated with the pneumatic conveying pipeline (5), and the other side is communicated with the fan (10).

3. The pneumatic fine powder recovery device according to claim 2, wherein a vibrator (11) is installed at a lower portion of the dust hopper (4).

4. The pneumatic fines recovery apparatus of claim 2, characterized in that the shutter (12) is a manual shutter.

5. The pneumatic fines recovery apparatus in accordance with claim 2, characterized by the blower (10) being a roots blower.

6. The pneumatic fine powder recovery device according to claim 1, wherein the number of the dust collectors (2) is at least three, the at least three dust collectors (2) are communicated with the qualified dust exhaust pipe (1) and the circulating air inlet pipe (6), and the dust collectors (2) are cyclone dust collectors or bag-type dust collectors.

7. The pneumatic fines recovery device of claim 1, characterized in that the dust hopper (4) is mounted in a dust recovery frame (3) and the spray tower (8) is mounted on a spray tower frame (7).

8. The pneumatic fine powder recovery device according to any one of claims 1 to 7, wherein the spray tower (8) is provided with a slurry delivery pipe and a slurry atomizing head, and the pneumatic delivery pipe (5) is communicated with the slurry delivery pipe.