CN2763908Y - Blowing out alarm for cement vertical kiln - Google Patents

Abstract

The utility model provides a kiln spraying alarm device for a cement vertical kiln, which belongs to the technical field of a vertical kiln alarm of a cement plant. The utility model is mainly characterized in that a current relay is connected in series with a circuit of a current transformator of a main circuit of the original blower, and an auxiliary contact of the current relay is controlled to and connected with a sound-light alarm; besides, the original amperometer is used for a kilnman to observe. When the kiln performance occurs abnormality, the sound-light alarm can send out sound-light alarm signals so as to remind the kilnman to take a relatively-treating measure in time and prevent a kiln spraying accident form taking place, and great hidden danger of the kiln performance monitoring method which exists in the existing cement vertical kiln is solved. The utility model has the advantages that the utility model ensures the safe production and prevents the kiln spraying accident from taking place, and is equally suitable for warning or controlling on occasions for having limitative requirement of motors and current in other production devices.

Description

The cement in vertical kiln kiln blowing out alarm

Technical field:

The utility model belongs to shaft kiln alarm technique field, cement mill, relates to a kind of cement in vertical kiln kiln blowing out alarm.

Background technology:

In cement in vertical kiln was produced, because multiple factor affecting tends to occur multiple undesired kiln condition, as bigger than normal, fire was bared on the refining limit, and frame kiln etc. as untimely discovery and processing kiln spray accident take place easily.In case kiln spray accident takes place, cause heavy losses can for the lives and properties of enterprise.At present, most of cement mill monitor that the method for kiln conditions prevention kilns spray is that current signal with fan blower under the kiln causes a reometer is installed on the kiln face, for firer's visual inspection.In case careless and inadvertent, kiln spray accident can take place in a flash.

Summary of the invention:

The purpose of this utility model is to design a kind of when the kiln condition is undesired, can remind the firer in time to find and takes the warning device that prevents kiln spray of corresponding measure.

Technical solution adopted in the utility model is a kind of cement in vertical kiln kiln blowing out alarm of design, its circuit structure comprises: meet reometer PA in the current transformer TA loop of original blower motor main circuit after, be connected in series a current relay KA again, utilize the auxiliary contact guide sound light crossing-signal DD work of current relay, constitute a kind of cement in vertical kiln kiln blowing out alarm.

Shaft kiln calcination must blast enough air-breathings from the kiln bottom with fan blower in kiln, normal in calcining, the fire in a stove before fuel is added is stable, and ventilation of kiln surface is evenly good, under the not thick situation of wet feed layer, bed of material ventilation resistance is little, the fan blower blast is stable, is reflected on the electric device of fan blower, then shows as the blower motor current stabilization, at this moment current value is normal controlling value, the current relay KA of this device is failure to actuate, and when the kiln condition was undesired, local ventilation was bad in the kiln, draught area reduces, resistance increases, and blast raises, and the blower motor electric current increases, be higher than normal controlling value, the current relay action of this device, its auxiliary contact is connected, audible-visual annunciator work, sound and the flashing light alarm signal, in time remind the firer to take the respective handling measure, avoid kiln spray accident to take place, the utility model has solved the existing major hidden danger of existing shaft kiln kiln condition observational technique preferably, has the guarantee production safety, the remarkable advantage that prevention kiln spray accident takes place.

Description of drawings:

Fig. 1, expression the utility model cement in vertical kiln kiln blowing out alarm electrical block diagram.

Embodiment:

The embodiment of the utility model cement in vertical kiln kiln blowing out alarm, referring to Fig. 1, its structure comprises: current relay KA, audible-visual annunciator DD, wherein current relay KA is serially connected in the loop of electric current mutual inductance along TA and reometer PA of blower motor main circuit, the auxiliary contact KA ' of current relay KA and audible-visual annunciator DD control linkage.U, N are the 220V power supply, and the action current of current relay KA is set more bigger than the normal controlling value of blower motor electric current; Reometer, current relay, audible-visual annunciator are placed on the kiln face, not only be beneficial to the firer current of electric is observed, and be beneficial to the timely transmission of alerting signal.

This cement in vertical kiln kiln blowing out alarm of the present utility model except that being used for cement in vertical kiln spray kiln reports to the police, also can be used in other production facility the occasion to the restricted requirement of current of electric, to report to the police or to control.

Claims (1)

1, a kind of cement in vertical kiln kiln blowing out alarm, it is characterized in that this device is by current relay KA, audible-visual annunciator DD forms, and current relay KA is serially connected in the loop of current transformer TA of blower motor main circuit, the auxiliary contact of current relay KA and audible-visual annunciator DD control linkage.

Images