CN2519119Y

CN2519119Y - Coal-water fluid-fired boiler

Info

Publication number: CN2519119Y
Application number: CN 01249721
Authority: CN
Inventors: 王成治; 戴现初; 陈南; 刘定宇; 许甫舟
Original assignee: JINFENG BOILER CO Ltd XIANGTAN
Current assignee: JINFENG BOILER CO Ltd XIANGTAN
Priority date: 2001-09-16
Filing date: 2001-09-16
Publication date: 2002-10-30
Anticipated expiration: 2011-09-16

Abstract

The utility model relates to a coal-water fluid-fired boiler, which mainly solves the problems of the prior coal boiler such as big operation labor intensity, serious pollution and the problem of the oil boiler such as high operation cost. The utility model comprises a boiler under-frame, a boiler wall, thermal insulation material and a smoke wind system, a water supply control system and an electric appliance control system which are all arranged on the boiler. A main burning chamber [13] is arranged at the downward side of the boiler body [17]; the lower part of the boiler grate [10] is provided with a wind chamber [13]; one side of the main burning chamber [13] is provided with an assistant burning chamber [15] which is communicated with the main burning chamber [13]; the end part of the main burning chamber[13] is provided with a main burning chamber [13] coal-water fluid spray gun [9]; the end part of the assistant burning chamber [15] is provided with an assistant burning chamber [15] coal-water fluid spray gun [9] and an oil spray gun [9]. The utility model is a boiler used for burning coal-water fluid with good environment protecting benefit and comparatively low operation cost, which has marked economic and environment protection benefits.

Description

The combusting coal water slurry boiler

Technical field: the utility model relates to a kind of boiler, particularly a kind of boiler that is used for the metabolic water coal slurry.

Background technology: general boiler is to adopt coal or oil plant to act as a fuel basically, the coal inconvenience transportation that coal-burning boiler is used, and need very big coal yard, boiler premises floor space is big, efficiency of combustion is low during boiler operatiopn, the labour intensity of manual work is big, and dust is many and have the toxic gas discharging, surrounding environment is polluted big; Though oil burning boiler efficiency of combustion height, though have advantages such as environmental benefit is good, the operating cost height, particularly along with the gradually reducing of global petroleum reserves, international oil price rises suddenly and sharply, deficiency in economic performance.

Summary of the invention: the purpose of this utility model is to provide the boiler of the metabolic water coal slurry that a kind of environmental benefit is good, operating cost is lower.The purpose of this utility model is achieved through the following technical solutions: it comprises boiler underframe, furnace wall, insulation material and is installed on air and gas system, feed water control system, electrical apparatus control system on the boiler, main chamber 13 places boiler body 17 belows, air compartment 12 is established in fire grate 10 bottoms, establish the subsidiary combustion chamber 15 that communicates with main chamber 13 in a side of main chamber 13, establish main chamber 13 water-coal-slurry spray guns 9 in the end of main chamber 13, establish subsidiary combustion chamber 15 water-coal-slurry spray guns 9 and oily spray gun 9 in the end of subsidiary combustion chamber 15.Establish the insulation side wall around the main chamber 13, chimney arch 8 is established at its top, and fire grate 10 is established in the bottom, and air compartment 12 is established in the bottom of fire grate 10.Boiler body 17 is pressed A shape and is arranged, drum 6 places the top of boiler body 17, the left and right sides is respectively equipped with left side collection case 16 and right collection case 14, about the collection case 14, the chimney arch 8 top flues 4 that are provided with between boiler body 17 and the chimney arch 8 communicate with the burner hearth of main chamber 13 and the convection section flue 18 of both sides respectively, and the convection bank 5 that is provided with in the convection section cigarette communicates with drum 6.The utility model aims at the metabolic water coal slurry and the boiler that designs, and it is rational in infrastructure, and fuel combustion is abundant, thermal efficiency height, operating cost economical rationality.

Description of drawings:

Fig. 1 is a vertical profile structural representation of the present utility model;

Fig. 2 is that the A-A of Fig. 1 is to cutaway view;

Fig. 3 is that the B-B of Fig. 1 is to cutaway view.

The specific embodiment:

By Fig. 1 to Fig. 3 as can be known, the utility model is made up of boiler body, burner, air and gas system, feed water control system, electrical apparatus control system etc., divides fast-assembling and two kinds of forms of assembling.Boiler body mainly is made up of boiler body 17, main chamber 13, subsidiary combustion chamber 15, underframe, furnace wall and insulation etc., and boiler body 17 is pressed A shape and arranged, is made up of drum 6, left and right sides collection case, convection bank 5.Main chamber 13 places boiler body 17 belows, forms by chimney arch 8, side wall, fire grate 10, and be air compartment 12 below the fire grate 10.The structure of subsidiary combustion chamber 15 and main chamber 13 are similar, but combustion space is less, are arranged in the boiler side, are communicated with main chamber 13.

Water-coal-slurry enters spray gun 9 by pump for mortar transmission through pipeline, and compressed again air pressurized sprays from nozzle atomization, enters combustion chambers burn.Simultaneously air distribution device is sent into wind in right amount from spray gun 9, and fire grate 10 bottoms are also adjusted at any time and sent into an amount of wind, make to reach optimal combustion state in the combustion chamber, and main chamber 13 and subsidiary combustion chamber 15 are equipped with spray gun 9 respectively.Burning with the oil gun oil spout and the ignition that are installed on subsidiary combustion chamber 15, is opened subsidiary combustion chamber 15 water-coal-slurry spray guns 9 injection water coal slurries earlier again from subsidiary combustion chamber 15 when treating to bring up to uniform temperature in the subsidiary combustion chamber 15, make water-coal-slurry fire burns.Because of main chamber 13 communicates with subsidiary combustion chamber 15, so when subsidiary combustion chamber 15 temperature raise, main chamber 13 temperature are increased, after treating that main chamber 13 temperature are brought up to a certain degree, open main chamber 13 water-coal-slurry spray guns 9 again and make it in main chamber 13 fire burns to main chamber 13 injection water coal slurries, high-temperature flue gas 7 is through furnace outlet, be folded to chimney arch 8 top flues 4, side direction changes convection section flue 18 over to then, discharges through back-end ductwork, economizer, air preheater, deduster, draws that buckle on the ridge and the chimney discharge from convection section flue 18 outlet again.

Water-coal-slurry is a kind of novel clean fluid fuel of cheapness, have mobile and stable as oil plant, it is exploited natural resources extensively, along with gradually reducing of global petroleum reserves, international oil price rises suddenly and sharply, the operating cost of oil burning boiler is more and more higher, and development and Design and use combusting coal water slurry boiler have remarkable economical and environmental benefit.

Claims

1, a kind of combusting coal water slurry boiler, it comprises boiler underframe, furnace wall, insulation material and is installed on air and gas system, feed water control system, electrical apparatus control system on the boiler, it is characterized in that: main chamber [13] places boiler body [17] below, air compartment [12] is established in fire grate [10] bottom, establish the subsidiary combustion chamber [15] that communicates with main chamber [13] in a side of main chamber [13], establish main chamber [13] water-coal-slurry spray gun [9] in the end of main chamber [13], establish subsidiary combustion chamber [15] water-coal-slurry spray gun [9] and oily spray gun [9] in the end of subsidiary combustion chamber [15].

2, according to the described combusting coal water slurry boiler of claim 1, it is characterized in that: establish the insulation side wall around the main chamber [13], chimney arch [8] is established at its top, and fire grate [10] is established in the bottom, and air compartment [12] is established in the bottom of fire grate [10].

3, according to claim 1 or 2 described combusting coal water slurry boilers, it is characterized in that: boiler body [17] is pressed A shape and is arranged, [6 place the top of boiler body [17] to drum, the left and right sides is respectively equipped with left side collection case [16] and right collection case [14], about collect case [14], chimney arch [8] the top flue [4] that is provided with between boiler body [17] and the chimney arch [8] communicates with the burner hearth of main chamber [13] and the convection section flue [4] of both sides respectively, and the convection bank [5] that is provided with in the convection section cigarette communicates with drum [6].