CN210126796U

CN210126796U - Powder storehouse ejection of compact anti-clogging device

Info

Publication number: CN210126796U
Application number: CN201920750217.2U
Authority: CN
Inventors: 鹿桂坡; 魏文; 王滔
Original assignee: Zhong Ring Letter Environmental Protection Co Ltd
Current assignee: Zhong Ring Letter Environmental Protection Co Ltd
Priority date: 2019-05-23
Filing date: 2019-05-23
Publication date: 2020-03-06
Anticipated expiration: 2029-05-23

Abstract

The utility model provides a powder bin discharging anti-blocking device, which comprises a gasification plate, a back-blowing air pipe and a fan, and also comprises at least two blowing ports, wherein the blowing ports are arranged at the bottom of the powder bin and distributed oppositely; the blower is connected with the blowing port through a blowback gas pipe; the purging port is provided with a gasification plate; the purging ports are communicated by an annular shunt pipeline. Can realize that gas sweeps, application scope is wide, can select pressure as required, effectively solves the powder storehouse and blocks up the problem, does not have the influence to equipment such as powder storehouse, and the operation is stable, and the mouth that sweeps that the subtend set up forms no dead angle and sweeps the powder.

Description

Powder storehouse ejection of compact anti-clogging device

Technical Field

The utility model belongs to the powder field of carrying, in particular to powder delivery anti-clogging device.

Background

At present, in power plants, chemical plants, metallurgical industry and other related fields, processes such as storage, transportation and the like of powdery materials are often involved. Generally, the powder material is stored in a discharging hopper or a storage bin, and then the powder material is taken out from the discharging hopper or the storage bin according to actual needs to enter the next process link. For powdery materials, in the process of storage, due to the extrusion of the self gravity and the fact that the powdery materials easily absorb moisture in the air, the materials become moist and agglomerate, so that the blanking is easily unsmooth or even completely blocked, dead corners are easily generated in a bin, and ideal blanking is difficult to achieve. Electric or pneumatic bin wall vibrators are usually adopted to assist in vibrating and beating to assist in conveying, but the using effect is not ideal in some cases, and the blockage situation is still frequent. The vibrator is mainly suitable for assisting blanking and initial bridging in continuous operation, plays a role of compaction when the material bridging is serious, increases the strength of the bridging, and easily causes deformation and cracking of the outer wall of the powder bin, loosening of a fixing bolt and the like due to mechanical vibration to cause secondary failure of equipment; the vibrating device has short service life and increases the operation and maintenance cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a powder storehouse ejection of compact anti-clogging device is proposed to above-mentioned prior art, overcome above prior art not enough.

The utility model provides a technical scheme that above-mentioned technical problem adopted is:

the powder bin discharge anti-blocking device comprises a gasification plate, a back-blowing air pipe, a fan and at least two blowing ports, wherein the blowing ports are arranged at the bottom of a powder bin and distributed oppositely; the blower is connected with the blowing port through a blowback gas pipe; the purging port is provided with a gasification plate; the purging ports are communicated by an annular shunt pipeline.

Still include PLC controller and human-computer interface, be equipped with the solenoid valve on the blowback trachea, PLC controller output respectively with solenoid valve and fan electric connection, PLC controller and human-computer interface connection.

The ejection of compact anti-clogging device of a plurality of powder storehouse adopts same fan, PLC controller and human-computer interface, and the solenoid valve on every ejection of compact anti-clogging device is normally closed solenoid valve, and every solenoid valve is respectively through PLC controller and fan chain control, and the fan starts when at least one solenoid valve is opened.

The PLC is in the model of CPM1A-20 CDR-D-V1.

The utility model has the advantages of, mainly sweep for gas, application scope is wide can select pressure as required, effectively solves powder storehouse jam problem, does not have the influence to equipment such as powder storehouse, and the operation is stable, and the powder is swept at the no dead angle of mouthful formation that sweeps that the subtend set up.

Drawings

Fig. 1 is a front view of the powder bin discharging anti-blocking device of the present invention.

FIG. 2 is a top view of the powder bin discharging anti-blocking device of the present invention

Wherein, 1 is the gasification board, 2 is the blowback pipeline, 3 is the solenoid valve, 4 is the fan, 5 is the annular reposition of redundant personnel pipeline, 6 is screw conveyer, A, B, C is the powder storehouse.

Detailed Description

As shown in the figure, the powder bin discharging anti-blocking device is characterized in that gas generated by a fan 4 flows from a back blowing pipeline 2 to an annular flow dividing pipeline 5, powder is blown in the direction perpendicular to the powder descending direction through a gasification plate 1 located at a blowing port at the bottom of a powder bin, the blowing ports arranged in opposite directions form convection gas, no blowing dead angle exists, and the powder is in a fluffy or suspended state.

The back flushing pipeline 2 is internally provided with an electromagnetic valve 3, and the other end of the back flushing pipeline 2 is connected with a fan 4; the PLC controller is respectively and electrically connected with the electromagnetic valve 3 and the fan 4, and the PLC controller is also electrically connected with the human-computer interface.

During operation, the purging time of each powder bin is set at a human-computer interface, the PLC control system starts the normally closed electromagnetic valve 3 of the powder bin I, then the fan 4 is started, generated gas passes through the back-purging pipeline 2 and then flows to the annular shunt pipeline 5, powder is purged in the direction perpendicular to the powder descending direction through the gasification plate 1, the purging openings arranged in opposite directions form convection gas, no purging dead angle exists, the powder is in a fluffy or suspended state, and the powder is conveyed to a required position through the screw conveyor 6.

The blowing opening is provided with a loose joint type gasification plate 1, so that the situation that blowing is stopped to enable powder to flow back to block a back blowing pipeline is prevented, and the gasification plate is convenient to overhaul and replace.

The top of the powder bin is provided with a dust remover for collecting powder coming out from the top.

A plurality of powder bins can share one fan 4, so that the investment cost is reduced; the automatic one-key operation can be realized, and the unattended operation can be realized.

A normally closed electromagnetic valve 3 is arranged in a back-blowing pipeline 2 below each bin, so that intermittent blowing control of each bin is realized, and moisture brought into excessive air by continuous blowing is prevented; when a plurality of bins are switched, the valve of the powder bin to be purged is opened first, and then the valve of the previous powder bin is closed; the normally closed electromagnetic valves are selected, the working time of the electromagnetic valves is shortened, the service life is prolonged, the electromagnetic valves 3 and the fan 4 are controlled in a linkage mode, when at least one electromagnetic valve 3 is opened, a signal is fed back to the PLC, the PLC sends a signal to start the fan 4, and therefore the fan 4 is prevented from being suppressed in pressure and the load is increased; the electromagnetic valve 3 can feed back a signal to the PLC control system when the fault cannot be opened, and the PLC control system gives an alarm prompt, stops in a linkage mode, and starts and stops the fan 4.

The PLC and the human-computer interface control system are adopted, and the manual and automatic operation functions are achieved. Time can be set through a human-computer interface before automatic operation, and each storage bin is subjected to intermittent back blowing to realize one-key starting and unattended operation; the switch of the electromagnetic valve 3 and the fan 4 can be operated on a human-computer interface during manual operation, so that the debugging and the maintenance are convenient. The PLC controller system is provided with leakage, open-phase and overload protection, so that the safe operation of the system is ensured.

Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and other modifications or equivalent replacements made by those skilled in the art to the technical solutions of the present invention, such as the replacement of the solenoid valve with the electric valve, the pneumatic valve, etc., should be covered by the scope of the claims of the present invention as long as the spirit and scope of the technical solutions of the present invention are not deviated.

Claims

1. The utility model provides a powder storehouse ejection of compact anti-clogging device, includes gasification board (1), blowback trachea (2) and fan (4), its characterized in that: the powder bin is characterized by also comprising at least two purging ports, wherein the purging ports are arranged at the bottom of the powder bin and distributed oppositely; the fan (4) is connected with the blowing port through the back blowing pipe (2); the purging port is provided with a gasification plate (1); the purging ports are communicated by an annular shunt pipeline (5).

2. The powder bin discharge anti-blocking device according to claim 1, characterized in that: the anti-explosion air-blowing pipe is characterized by further comprising a PLC and a human-computer interface, wherein the electromagnetic valve (3) is arranged on the air-blowing pipe (2), the output end of the PLC is electrically connected with the electromagnetic valve (3) and the fan (4) respectively, and the PLC is connected with the human-computer interface.

3. Powder bin discharge anti-clogging device according to claim 2, characterized in that: the discharging anti-blocking device of the powder bins adopts the same fan (4), a PLC (programmable logic controller) and a human-computer interface, the electromagnetic valve (3) on each discharging anti-blocking device is a normally closed electromagnetic valve, each electromagnetic valve (3) is respectively controlled by the PLC and the fan in a linkage mode, and the fan (4) is started when at least one electromagnetic valve (3) is opened.

4. Powder bin discharge anti-clogging device according to claim 3, characterized in that: the PLC is in the model of CPM1A-20 CDR-D-V1.