CN2618107Y - Atmospheric boiler with gravity coal feed and horizontal water container - Google Patents

Abstract

The utility model relates to a new type of gravitational coal dropping water chamber horizontal atmospheric pressure boiler, comprising a shell, an inner tank, a feed coal funnel, a coal dividing shaft, a coal dividing device, a coal dividing pipe, a plurality of heating pipes in furnace, a water-cooling pipe grate and a convective heating water chamber. The feed coal funnel is positioned on the top of the boiler furnace. Coal pushed down by the coal dividing shaft in the feed coal funnel is dispersed by the coal dividing device and the coal dividing pipe, and then falls into the furnace for burning. Labor intensity of the stoker is reduced greatly, for automatic burning. A plurality of water chambers are staggeringly arranged in the back-inner tank. With the shield of a plurality of layers of water chambers, curve-rotation high temperature flue gas rises in the furnace so as to lengthen flow of the high temperature flue gas and improve the absorption of heat energy emitted by the high temperature flue gas for boiler medium. In addition, the vertical scouring intensity of the high temperature flue gas to the water wall is strengthened so as to improve the heating efficiency greatly. For the large cross section of the water chamber, the utility model has the advantages of good natural water circulation, less generation of water scale in the furnace and a high utilization ratio of the fuel.

Description

The horizontal normal-pressure boiler of novel deadweight coal drop water container

Technical field

The utility model relates to the horizontal normal-pressure boiler of a kind of deadweight coal drop water container

Background technology

General boiler all is the vertical normal-pressure boiler of water pipe at present, and the vertical normal-pressure boiler of water pipe has very high requirement to water quality, in the bad area of water quality, the vertical normal-pressure boiler of water pipe is easy to scaling, the coal consumption height, and service life is short, easy booster, maintenance difficult, maintenance cost height.Individual layer grate-type water-tube boiler, the smoke dust discharge concentration height, environment protecting is poor; Double-layer grate counter-burning type water-tube boiler, environment protecting is good, but burning velocity is slow, and ature of coal is had relatively high expectations.Boiler combustion equipment commonly used divides chain-type, reciprocating type and fixed.Its main operation principles is: coal is taken away the subregion burning by the bottom of coal breakage bucket forward by traveling-grate stoker or reciprocating fire grate, and its burning zone is divided into preheating zone, combustion zone, burning-out zone, so grate area is wanted greatly, want zoned air, this type of furnace consumable quantity is big, cost expense height, and maintenance cost is also high.Fixed handwarmer claims grate furnace usually, and combustion efficiency is good, and coal adaptability is strong, but fireman's labour intensity height.And the designed horizontal normal-pressure boiler of deadweight coal drop water container of the utility model, its burning has formed the automatic combustion process of chain furnace or reciprocating type boiler, and also compatible simultaneously fixed fire grate burns, the advantage that coal adaptability is strong.Simultaneously, because the cross section of water box is big, the water Natural Circulation is good, so the booster phenomenon can not take place, by the barrier of multilayer water box in unsuitable scaling, make high-temperature flue gas in stove, form the curvilinear style circulation, the extended flow process of high-temperature flue gas has strengthened the vertical scouring intensity of high-temperature flue gas to water-cooling wall, thereby the thermal efficiency is greatly improved.

Summary of the invention

The utility model purpose is that the horizontal normal-pressure boiler of novel deadweight coal drop water container of design is formed by the hot water box by shell, inner bag, coal breakage bucket, coal-separating shaft, branch coal device, coal-separating pipe, burner hearth heat pipe, water cooling tube fire grate and convection current; The coal breakage bucket is located at the roof of the furnace of boiler, coal is dialled down by coal-separating shaft in the coal breakage bucket, drop in the burner hearth under after a minute coal device, coal-separating pipe disperse and burn, large coal particles drops on the water cooling tube fire grate and burns away, all fire grates are the combustion zone, have both saved preheating zone and burning-out zone in the existing boiler, thereby have saved the making material, owing to formed automatic combustion, greatly reduced fireman's labour intensity.Owing to be arranged with some staggered water boxes in the inner bag of back, by the barrier of multilayer water box, make high-temperature flue gas form the curvilinear style circulation in stove simultaneously, the flow process of the high-temperature flue gas that extended makes the boiler medium can better absorb the heat energy that flue gas discharges.Strengthened the vertical scouring intensity of high-temperature flue gas to water-cooling wall simultaneously, thereby the thermal efficiency is greatly improved, because the cross section of water box is big, water Natural Circulation good so be difficult for scaling in the stove, improved the utilization rate of fuel.

The novel deadweight coal drop water container described in the utility model normal-pressure boiler that crouches, this boiler is formed by the hot water box by shell, inner bag, coal breakage bucket, coal-separating shaft, branch coal device, coal-separating pipe, burner hearth heat pipe, water cooling tube fire grate and convection current, inner bag before the burner hearth of boiler (3) top is fixed with the coal breakage bucket (17) that connects up and down by coal-separating shaft (1) and divides coal device (16), coal-separating pipe (13) one ends are fixed on the top of preceding inner bag (3), its other end is fixed on the antetheca of preceding inner bag (3), and preceding inner bag (3) offers burner hearth (4); Be fixed with staggered burner hearth heat pipe (15) at the middle part of preceding inner bag (3), the bottom of preceding inner bag (3) is fixed with water cooling tube fire grate (14); Fix staggered water box (7) in the back inner bag (6) of boiler opposite side, be provided with shoot door (11) between the bottom water box (7) of back inner bag (6), the rear side of back inner bag (6) offers exhanst gas outlet (9); Be respectively equipped with atmospheric communicating pipe seat (18), expansion tank base (19) and water outlet base (20) on the top of boiler jacket (5).

Description of drawings

Referring to accompanying drawing

Fig. 1 is the utility model structural representation

Fig. 2 is the utility model side cutaway view

The specific embodiment

Further describe below in conjunction with accompanying drawing, and provide embodiment

The novel deadweight coal drop water container described in the utility model normal-pressure boiler that crouches, this boiler is formed by the hot water box by shell, inner bag, coal breakage bucket, coal-separating shaft, branch coal device, coal-separating pipe, burner hearth heat pipe, water cooling tube fire grate and convection current, inner bag before the burner hearth of boiler (3) top is fixed with the coal breakage bucket (17) that connects up and down by coal-separating shaft (1) and divides coal device (16), coal-separating pipe (13) one ends are fixed on the top of preceding inner bag (3), its other end is fixed on the antetheca of preceding inner bag (3), and preceding inner bag (3) offers burner hearth (4); Be fixed with staggered burner hearth heat pipe (15) at the middle part of preceding inner bag (3), the bottom of preceding inner bag (3) is fixed with water cooling tube fire grate (14); Fix staggered water box (7) in the back inner bag (6) of boiler opposite side, be provided with shoot door (11) between the bottom water box (7) of back inner bag (6), the rear side of back inner bag (6) offers exhanst gas outlet (9); Be respectively equipped with atmospheric communicating pipe seat (18), expansion tank base (19) and water outlet base (20) on the top of boiler jacket (5).During use, the coal breakage bucket is located at the roof of the furnace of boiler, coal is dialled down by coal-separating shaft in the coal breakage bucket, drop in the burner hearth under after a minute coal device, coal-separating pipe disperse and burn, large coal particles drops on the water cooling tube fire grate and burns away, and all fire grates are the combustion zone, preheating zone and burning-out zone in the existing boiler had both been saved, thereby saved the making material,, greatly reduced fireman's labour intensity owing to formed automatic combustion.Owing to be arranged with some staggered water boxes in the inner bag of back, by the barrier of multilayer water box, make high-temperature flue gas form the curvilinear style circulation in stove simultaneously, the flow process of the high-temperature flue gas that extended makes the boiler medium can better absorb the heat energy that flue gas discharges.Strengthened the vertical scouring intensity of high-temperature flue gas to water-cooling wall simultaneously, thereby the thermal efficiency is greatly improved, because the cross section of water box is big, water Natural Circulation good so be difficult for scaling in the stove, improved the utilization rate of fuel.Especially in the relatively poor area of water quality, all are higher than watertube boiler in result of use and service life, are not having under the situation of water treatment facilities, a boiler is cleaned in an intact back of heating phase, can guarantee normal operation, is that watertube boiler institute is incomparable.

Claims (1)

1, a kind of novel deadweight coal drop water container normal-pressure boiler for sleeping in, it is characterized in that this boiler is formed by the hot water box by shell, inner bag, coal breakage bucket, coal-separating shaft, branch coal device, coal-separating pipe, burner hearth heat pipe, water cooling tube fire grate and convection current, inner bag before the burner hearth of boiler (3) top is fixed with the coal breakage bucket (17) that connects up and down by coal-separating shaft (1) and divides coal device (16), coal-separating pipe (13) one ends are fixed on the top of preceding inner bag (3), its other end is fixed on the antetheca of preceding inner bag (3), and preceding inner bag (3) offers burner hearth (4); Be fixed with staggered burner hearth heat pipe (15) at the middle part of preceding inner bag (3), the bottom of preceding inner bag (3) is fixed with water cooling tube fire grate (14); Fix staggered water box (7) in the back inner bag (6) of boiler opposite side, be provided with shoot door (11) between the bottom water box (7) of back inner bag (6), the rear side of back inner bag (6) offers exhanst gas outlet (9); Be respectively equipped with atmospheric communicating pipe seat (18), expansion tank base (19) and water outlet base (20) on the top of boiler jacket (5).

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