CN201885588U

CN201885588U - Residual heat steam boiler of tunnel kiln of gangue bricks

Info

Publication number: CN201885588U
Application number: CN2010206344058U
Authority: CN
Inventors: 唐军; 尹文章; 杨德强
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-11-18
Filing date: 2010-11-18
Publication date: 2011-06-29
Anticipated expiration: 2020-11-18

Abstract

The utility model provides a residual heat steam boiler of a tunnel kiln of gangue bricks, which comprises a tunnel kiln and two paths of closed-loop circulating systems of water vapor; in one path, the top of the inside of the kiln is transversely provided with water wall tubes, the top of the outside of the tunnel kiln is longitudinally provided with a steam manifold, and both sides of the outer wall of the tunnel kiln are respectively provided with a downtake tube and a lower header tube; the top ends of all the water wall tubes and all the downtake tubes are communicated with the steam manifold at the top of the kiln, and the bottom ends of all the water wall tubes and all the downtake tubes are communicated with the lower header tubes so as to form the closed-loop circulating system of the water vapor; in the other path, the top of the outside of the kiln is longitudinally provided with convection tubes; and the upper ends of all the convection tubes are communicated with the steam manifold at the top of the kiln, and the lower ends of all the convection tubes are communicated with the lower header tubes so as to form the other closed-loop circulating system of the water vapor. By the technology, the aims that the residual heat of the tunnel kiln of the gangue bricks can be converted and utilized with high efficiency for producing steam and the steam yield of a residual heat boiler can also be regulated at any moment are realized, and an ideal steam source is provided to an unbalanced place using the steam.

Description

Colliery wastes brick residual heat of tunnel kiln steam boiler

Technical field

The utility model relates to the colliery wastes brick tunnel kiln waste heat boiler.

Background technology

Gangue is the association solid waste in coal enterprise's production process, and pile up like a mountain in the many places of China, and polluted-water, air take the farmland, becomes " public hazards " in colliery.Utilize gangue to make fired brick, not only can save a large amount of soils, turn harm into good, and well behaved building material, energy-saving and emission-reduction can also be provided.Gangue mainly adopts the brick tunnel cave to carry out sintering at present.Have in a large amount of waste heat bed clothes atmosphere when behind sintering, cooling off, utilize problem in order to solve the colliery wastes brick residual heat of tunnel kiln, the applicant has carried out the research of colliery wastes brick tunnel cave low temperature exhaust heat evaluation and exploration technology, mainly be to have developed two kinds of low temperature exhaust heat boilers, the colliery wastes brick residual heat of tunnel kiln is produced steam, be used for colliery worker's bathing, equipment dynamic steam supply, office in winter and living area central heating etc.But present low temperature exhaust heat boiler has following deficiency:

1, first kind of making coal gangue brick tunnel cave low temperature exhaust heat boiler owing to adopt kiln external flue waste heat reforming unit to produce steam, exists the thermal efficiency on the low side, generally only up to 56.89%.2, second kind of colliery wastes brick tunnel cave low temperature exhaust heat boiler owing to adopt waste heat reforming unit production steam in the kiln, though the thermal efficiency is high by 76.66%, solved the low problem of the thermal efficiency, has the technical disadvantages that can not regulate steam production at any time.

Summary of the invention

In order to overcome the technical disadvantages that existing colliery wastes brick tunnel cave low temperature exhaust heat boiler exists, the utility model provides a kind of waste heat that can efficiently transform to produce steam, can regulate the colliery wastes brick residual heat of tunnel kiln steam boiler of steam production again at any time.

For achieving the above object, the technical scheme that the utility model is taked is: it comprises colliery wastes brick tunnel cave body, it is characterized in that:

1, is horizontally installed with the water screen tube of=100 diameter of phi 50mm of 50/row * 2 rows at the kiln inner top of colliery wastes brick tunnel cave body temperature descending section, the drum of diameter 800mm, a length 12m is vertically installed at the top outside tunnel cave, and the lower box collecting pipe of diameter 100mm, a length 12m and down-comer and the lower box collecting pipe of four diameter 80mm respectively are installed in tunnel cave outer wall both sides; The top of all water screen tubes and down-comer is communicated with kiln top drum, and the bottom is communicated with lower box collecting pipe, forms the steam closed circuit circulatory system; The outer down-comer of kiln, lower box collecting pipe and drum are equipped with rock wool aluminum hull pipe heat-insulation layer.Utilize the interior high-temperature residual heat of tunnel cave directly to heat the interior demineralized water of water screen tube, produce steam;

2, the convection tube chamber that a long 6m, wide 1.5m, high 1.5m are vertically installed in the top outside the kiln of colliery wastes brick tunnel cave body temperature descending section, in adorn the convection tube of=400 diameter 50mm of 40/row * 10 rows; All convection tube upper ends are communicated with kiln top drum, and the lower end is communicated with lower box collecting pipe, forms another steam closed circuit circulatory system; The convection tube chamber is communicated with kiln high-temperature flue outward again.Utilize the demineralized water in the high-temperature residual heat heated convection pipe in the flue, produce steam.Bypass pipe also is set on the flue, all installs baffle door in import and export of convection tube chamber and the bypass pipe,, regulate the steam production of waste heat boiler at any time by the aperture of controllable register door; Convection tube outdoor face and convection tube outdoor section are equipped with rock wool aluminum hull pipe heat-insulation layer.

The beneficial effects of the utility model are, have realized that by above technology efficiently trans-utilization colliery wastes brick residual heat of tunnel kiln is produced steam, and the purpose that can regulate the waste heat boiler steam production again at any time is for lack of balance provides desirable vapour source with the vapour place.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is that master of the present utility model looks sectional structural map;

Fig. 2 is the vertical view of the utility model structure.

Among the figure: 1-water screen tube, 2-down-comer, 3-lower box collecting pipe, 4-drum, 5-tunnel cave body, 6-water inlet, 7-steam main steam outlet tube mouth, 8-tunnel cave outer wall, 9-convection tube chamber, 10-convection tube, 11-high-temperature flue, 12-bypass pipe, 13-baffle door.

The specific embodiment

As shown in Figure 1, the utility model comprises two-way steam closed circuit circulatory system on the whole, wherein:

One the tunnel is the water screen tube 1 that=100 diameter of phi 50mm of 50/row * 2 rows laterally are installed at the kiln inner top of colliery wastes brick tunnel cave body 5 temperature descending sections, the drum 4 of diameter 800mm, a length 12m vertically is installed at the outer top of tunnel cave body 5, on drum 4, be provided with water inlet 6 and steam main steam outlet tube mouth 7, the lower box collecting pipe 3 of diameter 100mm, a length 12m and down-comer 2 and the lower box collecting pipe 3 of four diameter 80mm respectively are installed in tunnel cave outer wall 8 both sides; The top of all water screen tubes 1 and down-comer 2 is communicated with kiln top drum 4, the bottom is communicated with lower box collecting pipe 3, forms the steam closed circuit circulatory system; The outer down-comer 2 of kiln, lower box collecting pipe 3 and drum 4 are equipped with rock wool aluminum hull pipe heat-insulation layer.Utilize high-temperature residual heat in the tunnel cave directly to heat demineralized water in the water screen tube 1, produce steam;

Another road is the convection tube chamber 9 that a long 6m, wide 1.5m, high 1.5m are vertically installed in the top outside the kiln of colliery wastes brick tunnel cave body 5 temperature descending sections, in adorn the convection tube 10 of=400 diameter 50mm of 40/row * 10 rows; All convection tube 10 upper ends are communicated with kiln top drum 4, and the lower end is communicated with lower box collecting pipe 3, forms another steam closed circuit circulatory system; Convection tube chamber 9 is communicated with kiln high-temperature flue 11 outward again.Utilize the demineralized water in the high-temperature residual heat heated convection pipe 10 in the flue 11 to produce steam.Bypass pipe 12 also is set on the flue 11, all installs baffle door 13 in 9 import and export of convection tube chamber and the bypass pipe 12,, regulate the steam production of waste heat boiler at any time by the aperture of controllable register door 13; Convection tube chamber 9 outer surfaces and convection tube 10 outdoor sections are equipped with rock wool aluminum hull pipe heat-insulation layer.

Claims

1. a colliery wastes brick residual heat of tunnel kiln steam boiler is characterized in that, it comprises colliery wastes brick tunnel cave body, it is characterized in that:

Be horizontally installed with the water screen tube of 50/row * 2 rows' diameter of phi 50mm at the kiln inner top of colliery wastes brick tunnel cave body temperature descending section, the drum of diameter 800mm, a length 12m is vertically installed at the top outside tunnel cave, and the lower box collecting pipe of diameter 100mm, a length 12m and down-comer and the lower box collecting pipe of four diameter 80mm respectively are installed in tunnel cave outer wall both sides; The top of all water screen tubes and down-comer is communicated with kiln top drum, and the bottom is communicated with lower box collecting pipe, forms the steam closed circuit circulatory system; The outer down-comer of kiln, lower box collecting pipe and drum are equipped with rock wool aluminum hull pipe heat-insulation layer;

The convection tube chamber of a long 6m, wide 1.5m, high 1.5m is vertically installed at the top outside the kiln of colliery wastes brick tunnel cave body temperature descending section, in adorn the convection tube of 40/row * 10 rows' diameter 50mm; All convection tube upper ends are communicated with kiln top drum, and the lower end is communicated with lower box collecting pipe, forms another steam closed circuit circulatory system; The convection tube chamber is communicated with kiln high-temperature flue outward again, and bypass pipe also is set on the flue; All install baffle door in import and export of convection tube chamber and the bypass pipe; Convection tube outdoor face and convection tube outdoor section are equipped with rock wool aluminum hull pipe heat-insulation layer.