CN102815539B - System for preventing powder bin puking - Google Patents

Abstract

The embodiment of the invention provides a system for preventing powder bin puking which can prevent the occurrence of powder bin puking accidents. The system comprises a material level device, a control cabinet and a valve, wherein the material level device is installed inside a powder bin and sends a detection signal to the control cabinet when detecting that materials rise to the predetermined material level, the control cabinet controls the opening and closing of the valve according to the detection signal sent by the material level device, the valve is installed between a butt-joint bayonet and a pipeline, and the starting and stopping of material conveying are controlled by controlling the opening and closing of the valve.

Description

A kind of anti-powder storehouse roof fall system

Technical field

The present invention relates to the safety control field of cement powder bin, particularly a kind of anti-powder storehouse roof fall system.

Technical background

The material transferring of cement and the powder material such as fly ash, ground slag powder powder storehouse (pulvis feed bin) take high pressure air as propulsion source conveying.Fig. 1 is the structural representation of prior art powder storehouse delivery system.As shown in Figure 1, extraneous powder material transfer passage is connected with powder storekeeper road by docking bayonet socket, and wherein, the other end of transfer passage is connected with powder material transport trolley usually.In the middle of gas is driven into by Air compressor, material flows out through pipeline under the effect of gas, powder material can be pressed into powder storehouse by powder storekeeper road like this by high pressure air.In course of conveying, silo internal pressure is greater than barometric pressure, and pressurized air is outwards discharged by the filter layer of roof scrubber.Once after the filter core of dust exhaustor blocks by floating dust, along with the continuous rising of storehouse inner air pressure, be easy to cause roof fall accident.

Once emit top event to occur, a large amount of cement or powdered coal ash will pass through powder storehouse tip-leakage, not only cause the waste of raw material, also seriously can pollute the environment of mixing plant periphery.Dust exhaustor top cover is from the high-altitude pendant of about 20 meters simultaneously, also brings serious safety hazards; In addition, dust exhaustor roof fall accident also causes manufacturer to need frequency to change dust exhaustor, is also all that unnecessary cost raises.

For this reason, be badly in need of providing a kind of anti-powder storehouse roof fall system.

Summary of the invention

In view of this, the embodiment of the present invention provides a kind of anti-powder storehouse roof fall system, prevents the generation of powder storehouse roof fall accident.

In order to achieve the above object, the one that the embodiment of the present invention provides anti-powder storehouse roof fall system, comprising:

Level detector, control housing and valve are formed; Wherein, it is inner that level detector is arranged on powder storehouse, when detection material rises to predetermined material level, detection signal sent to control housing; The switch of the detection signal by-pass valve control that control housing sends according to level detector; Valve installation, in the middle of docking bayonet socket and pipeline, by controlling described valve switch, controls the start and stop of mass transport.

The embodiment of the present invention additionally provides a kind of anti-powder storehouse roof fall system, comprising: level detector, control housing; Wherein, it is inner that level detector is arranged on powder storehouse, when detection material rises to predetermined material level, detection signal sent to control housing; Control housing controls the opening and closing of external pneumatic transport equipment power supply according to the detection signal that level detector sends.

The anti-powder storehouse roof fall system utilizing the embodiment of the present invention to provide, powder material can enter feed bin as much as possible, and does not exceed capacity; The more important thing is, once level detector is reported to the police, can force automatically to stop material putting in storage operation without the need to manual intervention.

Accompanying drawing explanation

Fig. 1 is the structural representation of prior art powder storehouse delivery system.

Fig. 2 is the structural representation of a kind of anti-powder storehouse roof fall system in the embodiment of the present invention.

Fig. 3 is the structural representation of a kind of anti-powder storehouse roof fall system in another embodiment of the present invention.

Detailed description of the invention

For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, the present invention is described in further detail.

Figure 2 shows that the structural representation of a kind of anti-powder storehouse roof fall system in the embodiment of the present invention.As shown in Figure 2, this system comprises level detector, a control housing, and annunciator and valve are formed.It is inner that level detector is installed to powder storehouse, whether rises to predetermined material level for detecting material.Detection signal is sent to control housing by wired or wireless mode by this level detector.The detection signal that control housing sends according to level detector controls annunciator and valve.Valve, according in the middle of docking bayonet socket and pipeline, by controlling this valve switch, can control the start and stop of mass transport.

Before beginning convey materials, first the delivery duct in material source is fixed to docking bayonet socket by operating personal, opens valve, and material enters in feed bin through pipeline under the effect of suppressing of Air compressor.After level detector senses that material rises to predetermined material level, by circuit transmission of signal to control housing.After control housing receives signal, send alarm message to annunciator by circuit, annunciator is implemented to report to the police; And after predetermined time delay, control housing sends the instruction of Locking valve by circuit, unnecessary material is stopped outside valve, realize controlling to put in storage the object of inventory.

Utilize the system that the embodiment of the present invention provides, powder material can enter feed bin as much as possible, and does not exceed capacity; Once level detector is reported to the police, can force to stop material putting in storage operation without the need to manual intervention.

Fig. 3 is the structural representation of a kind of anti-powder storehouse roof fall system in another embodiment of the present invention.As shown in Figure 3, same Fig. 2 of System's composition of its cardinal principle, difference is only, the output information of control housing is not the opening and closing of by-pass valve control, but for controlling the power supply of external pneumatic transport equipment (such as, Air compressor); Like this after warning implemented by annunciator, after predetermined time delay, control housing controls by circuit the power supply disconnecting external pneumatic transport equipment, pressure stops operation, do not having the effect of high pressure air, namely material also stops entering powder storehouse, the object of inventory thus realization control is put in storage.

It will be understood by those skilled in the art that the anti-powder storehouse roof fall system disclosed in the embodiment of the present invention both can be used in as on the chemical powder such as cement, fly ash material, also can be used on the food powder materials such as flour, or on other any powder materials.

The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement etc., all should be included within protection scope of the present invention.

Claims (2)

1. an anti-powder storehouse roof fall system, comprising: level detector, control housing; Wherein, it is inner that level detector is arranged on powder storehouse, when detection material rises to predetermined material level, detection signal sent to control housing; Control housing controls the opening and closing of external pneumatic transport equipment power supply according to the detection signal that level detector sends, and it is characterized in that, comprises annunciator further, is connected with described control housing; The detection signal that described control housing sends according to level detector further controls annunciator and implements to report to the police; Wherein, described control housing is used for after alarm equipment alarm, after predetermined time delay, then controls external pneumatic transport equipment power-off; Wherein, described level detector and described control housing pass through wireless connections.

2. the system as claimed in claim 1, is characterized in that, described external pneumatic transport equipment is Air compressor.