CN201093516Y - New type boiler coal bunker loosening apparatus - Google Patents

Abstract

The utility model discloses a novel boiler coal bunker loose device, comprising a plurality of roller wheels and a loose belt, wherein, the roller wheels are in turn arranged among a plurality of supporting rods fixed at the coal bunker inner wall by a bracket; the loose belt is covered on the roller wheels; a coal baffle plate is arranged at the upper side of the top roller wheel of the coal bunker inner wall; a coal-prevention plate is arranged at the upper side of the roller wheels and two sides of the loose belt; a scraping plate is arranged at the lower side of the bottom roller wheel. The utility model makes use of the bracket, the roller wheels and the loose belt to form a moveable supporting surface; the supporting surface can be moved under the action of the coal-burning gravity or the caterpillar track tension, thereby preventing or destroying the bracket coal and shed coal phenomenon in the coal bunker. The novel boiler coal bunker loose device has the advantages of simple structure, safe and reliable operation, and convenient maintenance.

Description

The New-type boiler coal bunker device that loosens

Technical field

The utility model relates to the loose device of New-type boiler coal bunker.

Background technology

Boiler is in running, and more or less all there is plug coal problem in its coal bunker.When coal bunker occur to stop up can not automatic coal feeding the time, disconnected coal just appears in feeder, and short meeting of time causes boiler load and operational factor fluctuation, the time long if handle and with great difficulty do not cause boiler extinguishment, influence ordinary production.As Fig. 1, shown in Figure 2, the taper of the structure side of mainly containing and the taper shape of coal bunker 9, hyperbola is also arranged, its charging suitable for reading, the end opening discharge, material falls by deadweight from top to bottom, the material that falls is in the coal bunker internal flow, so flow downward more, circulation area is more little, and material itself is just formed extruding, simultaneously because the increase of raw coal density, the main cause that the thin raw coal that itself and coal bunker inwall coefficient of friction increase and water content is bigger and the bonding of coal bunker inwall result in blockage often, the water content of material in addition, the fineness degree ratio, the length of the variation of amount of thermal conduction and material resting period in coal bunker etc. all is the reason of stopping up.At present, the method that solves coal bunker frame coal, canopy coal mainly contains: after 1) operations staff finds to stop up, manually beat with sledgehammer or disclose with long pricker, shortcoming is that efficient is very low, not only serious waste manpower, simultaneously, the availability of equipment is reduced greatly because the time that needs is longer; 2) replace manually beaing with vibrator, shortcoming is that efficient is not high, shakes more real and more real when forming chute blockage simultaneously, anti-chute blockage liner plate is got loose cause more serious consequence; 3) air bubble rapping, shortcoming also are that efficient is high and shake more real and more real when forming chute blockage.

The utility model content

At the deficiency that prior art exists, the purpose of this utility model is to provide a kind of loose device that can effectively solve coal bunker frame coal, canopy coal problem.

For achieving the above object, the technical solution adopted in the utility model is:

A kind of New-type boiler coal bunker device that loosens comprises roller and rarefied zone, and described roller is installed in successively by support and is fixed between the pole on the coal bunker inwall, and rarefied zone covers on the roller.

Described coal bunker inwall is provided with the coal baffle plate above the roller of top, be provided with anti-coal plate above roller and rarefied zone both sides, is provided with scraper plate below the roller of bottom.

Described rarefied zone is belt or crawler belt.

In the coal bunker outside power set are installed, power set can drive whole rarefied zone operation by power transmission shaft.

The utility model is under the prerequisite of not destroying the original operation conditions of coal bunker, utilize support, roller and rarefied zone to constitute the bearing-surface of an activity, this bearing-surface can be movable under the pulling force effect of the gravity of fire coal or crawler belt, thereby can prevent or destroy frame coal, canopy coal phenomenon in the coal bunker.Have beneficial effects such as mounting structure is simple, safe and reliable to operation, easy maintenance.

Description of drawings

Fig. 1 is the schematic diagram that frame coal situation appears in coal bunker;

Fig. 2 is the schematic diagram that canopy coal situation appears in coal bunker;

Fig. 3 is a structural representation of the present utility model;

Fig. 4 is the A-A view of Fig. 3.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is described in further detail.

Description of reference numerals is as follows:

1---roller

2---rarefied zone

3---support

4---the coal bunker inwall

5---pole

6---the coal baffle plate

7---anti-coal plate

8---scraper plate

9---coal bunker

10---chain

11---power transmission shaft

12---power set

13---gear

As shown in Figure 3, Figure 4, the loose device of this coal bunker mainly is made up of roller 1 and rarefied zone 2, wherein roller 1 is installed in successively by support 3 and is fixed between the pole 5 on the coal bunker inwall 4, rarefied zone 2 covers on the roller 1, coal bunker inwall 4 is provided with coal baffle plate 6 above the roller of top, be provided with anti-coal plate 7 above roller 1 and rarefied zone 2 both sides, be provided with scraper plate 8 below the roller of bottom, rarefied zone 2 can adopt belt or crawler belt.

During use, under the gravity effect, the material that flows along the coal bunker inwall can drive roller and rarefied zone cycle operation, thereby constitutes the bearing-surface of an activity, and material is carried downwards continuously, is difficult for blockage phenomenon, guarantees that boiler can run well.

If in use, the whole coal bunker bridging because material is too moist has taken place, i.e. phenomenon as shown in Figure 2, can open moving power set 12 so this moment, by 13 rotations of power transmission shaft 11 driven gears, the rotation of gear 13 has driven the rotation of each roller again by chain 10 and gear 13, therefore, whole rarefied zone 2 can slowly move downward, thereby has destroyed the bridging phenomenon.

The utility model is not limited to above-mentioned preferred forms, and anyone can draw other various forms of products under enlightenment of the present invention.Though but on its shape or structure, do any variation, every identical with the utility model or akin technical scheme is all within its protection domain.

Claims (4)

1. the loose device of a New-type boiler coal bunker is characterized in that, comprises roller and rarefied zone, and described roller is installed in successively by support and is fixed between the pole on the coal bunker inwall, and rarefied zone covers on the roller.

2. the New-type boiler coal bunker according to claim 1 device that loosens is characterized in that described coal bunker inwall is provided with the coal baffle plate above the roller of top, is provided with anti-coal plate above roller and rarefied zone both sides, is provided with scraper plate below the roller of bottom.

3. the New-type boiler coal bunker according to claim 1 device that loosens is characterized in that described rarefied zone is belt or crawler belt.

4. the New-type boiler coal bunker according to claim 1 device that loosens is characterized in that described loose device has transmission and power set.

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