CN203323360U

CN203323360U - Chain type fire coal gasification hot-wind environment-friendly boiler

Info

Publication number: CN203323360U
Application number: CN2013202915063U
Authority: CN
Inventors: 刘伟义; 刘兴
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-05-27
Filing date: 2013-05-27
Publication date: 2013-12-04
Anticipated expiration: 2023-05-27

Abstract

A chain type fire coal gasification hot-wind environment-friendly boiler comprises a boiler steel frame, an automatic chain type fire grate and a heating boiler barrel. The heating boiler barrel is fixedly connected to the upper end of the boiler steel frame, the automatic chain type fire grate is fixedly connected to the lower end of the boiler steel frame, fireproof bricks are constructed on the periphery of the boiler steel frame, and heat preservation bricks are added to maintain temperature to form a hearth without heating pipe bundles on the periphery. A sealing arc arch wall, an arc smoke passing arch wall, an arc arch wall and an arc inclined long arch bridge formed by high-temperature high-aluminum cement in a pouring mode are arranged in sequence in the hearth. The hearth is divided into a preheating combustion area, a high-temperature radiation combustion area and a convection slag burning-out area. an upper heating pipe bundle and a lower heating pipe bundle for returning smoke are arranged in the heating boiler barrel, and the heating pipe bundles exchange heat with entered cold air. The chain type fire coal gasification hot-wind environment-friendly boiler is reasonable in design, compact in structure, attractive, elegant, convenient to operate, safe, reliable, small in boiler house occupied space, small in user investment, and efficient, saves raw materials, and saves energy, the environment-friendly effect without smoke in operation is achieved, and thermal efficiency of the boiler is greatly improved.

Description

Chain type fire coal gasfication hot blast environment-protection boiler

Technical field

The utility model relates to a kind of hot air boiler, particularly be chain type fire coal gasfication hot blast environment-protection boiler.

Background technology

Domestic general hot air boiler be all with chimney directly row draw inner flue gas of the stove, flue gas to move towards distance short, high fume temperature, the thermal efficiency of boiler is low, and the chain-type hot air boiler is that boiler and hot air heat exchanger are divided into two bodies substantially, and the thermal efficiency can only reach 50%～60%, consume energy high, not environmental protection, over-emitting black exhaust.Domestic a lot of chain-type hot air boiler can not be combined boiler body and heat pipe binding at present.The high temperature that can cause burner hearth of combining burns the boiler heat-exchanging tube bundle that is heated, and can not guarantee that boiler normally moves.Structure is reasonable not in addition, and processing and fabricating consumption steel material is large, while taking a lot of work, and unfavorable saving material cost, and increase user boiler room construction cost.

The utility model content

The technical problems to be solved in the utility model is, provide a kind of scientific and reasonable for structure, be convenient to processing and fabricating, save material cost, fuel burns at the lower hearth hyperthermia radiation, intrafascicular being heated of the smoke exhaust pipe of hot flue gas in upper drum, the exchange hot blast forms integral structure, improve boiler thermal output, reduce heat loss, under any circumstance can not burn the boiler tube bank smoke pipe that is heated through air blast cold wind exchange heat exchange, change the difficult problem that the traditional boiler body of domestic chain-type hot air boiler and heat exchanger separate.Greatly saved the steel material, more the user saves the great amount of investment that boiler room is built.

The technical scheme adopted is:

Chain type fire coal gasfication hot blast environment-protection boiler, comprise boiler steelframe, automatic chain formula fire grate, the drum that is heated, front smoke box, upper fuel bucket, chimney.The described drum that is heated is fixedly connected with boiler steelframe upper end, and automatic chain formula fire grate is fixedly connected with boiler steelframe lower end, and automatic chain formula fire grate and the drum that is heated are linked together.Boiler steelframe surrounding laying fireproof bricks, additional insulating brick insulation forms the burner hearth of a surrounding without the tube bank of being heated, and is laid with successively closed arc arch wall, arc logical cigarette arch wall, arc arch wall and arc plagioclase arch bridge that thermostable high-alumina cement is built in described burner hearth.Described closed arc arch wall to the burner hearth between the logical cigarette arch wall of arc is the preheated burning district; Logical cigarette arch wall to the burner hearth between the arc arch wall of arc is the hyperthermia radiation combustion zone; The burner hearth at arc arch wall rear is that the slag burning-out zone is leaned in convection current.Be laid with upper and lower twice in the described drum that is heated and return the tube bank of being heated of cigarette, being heated to restrain into the mouth place and being provided with into the cigarette rear pass together below, its front end is provided with front smoke box, make flue gas connect together the tube bank of being heated of logical chimney above entering, the cold wind that make to be heated tube bank and air inlet enter is subject to heat exchange.

Intrafascicular position of heat pipe that above-mentioned twice are up and down returned cigarette is provided with the heat insulation aerofoil of one hot blast trend.

Above-mentioned closed arc arch wall lower end offers the fuel input port that connects upper fuel bucket.

The logical cigarette arch wall of above-mentioned arc is provided with the netted exhaust hole with laying fireproof bricks.

The smoke-refeed mouth place of above-mentioned arc plagioclase arch bridge top is laid with the netted firebreak with laying fireproof bricks, in netted firebreak rear, is provided with the firebreak of building with thermostable high-alumina cement.

Above-mentioned preheated burning district is provided with preheated burning district stoker and sees vent.

Above-mentioned convection current is provided with by slag burning-out zone stoker and sees vent by the slag burning-out zone.

Above-mentioned convection current is provided with shoot door by slag burning-out zone rear end.

The above-mentioned drum rear end that is heated is provided with the smoke pipe shoot door.

The utility model is reasonable in design, compact conformation, attractive in appearance, generous, easy and simple to handle, safe and reliable, boiler room take up an area less, customer investment is few, save raw material, energy-efficient, being in operation reaches environment protecting that can't see cigarette, has improved widely the thermal efficiency of boiler.

The utility model energy-conserving and environment-protective of the technology, save raw material, and boiler design is scientific and reasonable, compact conformation, and the thermal efficiency is up to 78%; And creative energy-conserving and environment-protective safe and reliable to operation, the concentration of emission of flue dust and sulfur dioxide is better than the requirement of GB13271-2001 " boiler atmosphere pollution row standard ".Large this technology hot air boiler that utilizes of the power model of boiler can be manufactured 20 tons of boilers of 14M,W(1,200 ten thousand kilocalorie) and safe and reliable.The air heating that extensively applicable Safety of Coal Mine Production air exchange workshop, large-scale agricultural industry base produce winter, grain, medicinal material, agricultural avocation dry, be domestically leading technical products at present.

The accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

Fig. 2 is the A-A cutaway view of Fig. 1.

The specific embodiment

Chain type fire coal gasfication hot blast environment-protection boiler, comprise boiler steelframe 17, automatic chain formula fire grate 14, the drum 22 that is heated, front smoke box 26, upper fuel bucket 27, chimney 20.The described drum 22 that is heated is fixedly connected with boiler steelframe 17 upper ends, and automatic chain formula fire grate 14 is fixedly connected with boiler steelframe 17 lower ends, and automatic chain formula fire grate 14 and the drum 22 that is heated are linked together.Boiler steelframe 17 surroundings are built by laying bricks or stones with refractory brick 15, additional insulating brick 16 insulations form the burner hearth of a surrounding without the tube bank of being heated, and are laid with successively closed arc arch wall 3, arc logical cigarette arch wall 5, arc arch wall 8 and arc plagioclase arch bridge 11 that thermostable high-alumina cement is built in described burner hearth.Described closed arc arch wall 3 lower ends offer the fuel input port 1 that connects upper fuel bucket 27; The logical cigarette arch wall 5 of arc is provided with the netted exhaust hole 6 with laying fireproof bricks; The smoke-refeed mouth place of arc plagioclase arch bridge 11 tops is laid with the netted firebreak 10 with laying fireproof bricks, in netted firebreak 10 rears, is provided with the firebreak 12 of building with thermostable high-alumina cement.Described closed arc arch wall 3 to the burner hearth between the logical cigarette arch wall 5 of arc is preheated burning district 4; Logical cigarette arch wall 5 to the burner hearth between arc arch wall 8 of arc is hyperthermia radiation combustion zone 7; The burner hearth at arc arch wall 8 rears is that slag burning-out zone 23 is leaned in convection current.Be laid with upper and lower twice in the described drum 22 that is heated and return the tube bank 25 of being heated of cigarette, upper and lower twice are returned being heated of cigarette and are restrained the heat insulation aerofoil 24 that 25 middle parts are provided with one hot blast trend, being heated to restrain into the mouth place and being provided with into the cigarette rear pass together below, its front end is provided with front smoke box 26, make flue gas connect together the tube bank of being heated of logical chimney 20 above entering, the cold wind that make to be heated tube bank 25 and air inlet 21 enter is subject to heat exchange.Discharge hot blast from hot wind outlet 19.Described preheated burning district 4 is provided with preheated burning district stoker and sees vent 2; Convection current is provided with by slag burning-out zone stoker and sees vent 9 by slag burning-out zone 23; Convection current is provided with shoot door 13 by slag burning-out zone 23 rear ends; The drum rear end that is heated is provided with smoke pipe shoot door 18.

Operation principle

Fuel enters flue gas 7 hyperthermia radiations burnings to the hyperthermia radiation combustion zone that preheated burning district 4 burner hearths produce from fuel input port 1, force to make flue gas from arc arch wall 8 below by, and make flue gas at the abundant after-flame in hyperthermia radiation district.Convection current is by the netted firebreak 10 of the arc plagioclase arch top smoke-refeed mouth of slag burning-out zone 23, reducing the length of flame makes flue gas enter from netted firebreak the smoke pipe that the boiler top is subject to heat exchange zone, there is firebreak 12 at the position that is about to enter smoke pipe at flue gas, make forcibly flame directly not enter to be heated tube bank 25, the hyperthermia radiation temperature that will produce in burner hearth enters the smoke pipe tube bank of boiler, effectively control flame and entered the smoke pipe tube bank, avoided the problem phenomenon of burning smoke pipe to occur.Arranged that two return the tube bank flue 25 that is heated of cigarette the drum 22 that is heated is interior, designed the heat insulation aerofoil 14 of one hot blast trend in middle part, make the cold wind of air blast enter the body of boiler from air inlet 21, discharge hot blast from hot wind outlet 19, integral body is heated to restrain and has all been entered the hot blast exchange process, improve the exchange rate of hot blast, improved widely the thermal efficiency of boiler.

Claims

1. chain type fire coal gasfication hot blast environment-protection boiler, comprise boiler steelframe (17), automatic chain formula fire grate (14), drum (22) is heated, front smoke box (26), upper fuel bucket (27), chimney (20), it is characterized in that the described drum that is heated (22) is fixedly connected with boiler steelframe (17) upper end, automatic chain formula fire grate (14) is fixedly connected with boiler steelframe (17) lower end, automatic chain formula fire grate (14) and the drum (22) that is heated are linked together, boiler steelframe (17) refractory brick for surrounding (15) is built by laying bricks or stones, the surrounding that additional insulating brick (16) insulation forms is without the burner hearth of the tube bank of being heated, be laid with successively the closed arc arch wall (3) that thermostable high-alumina cement is built in described burner hearth, arc leads to cigarette arch wall (5), arc arch wall (8) and arc plagioclase arch bridge (11), closed arc arch wall (3) to the burner hearth between the logical cigarette arch wall (5) of arc is preheated burning district (4), logical cigarette arch wall (5) to the burner hearth between arc arch wall (8) of arc is hyperthermia radiation combustion zone (7), the burner hearth at arc arch wall (8) rear is that slag burning-out zone (23) is leaned in convection current, be heated in drum (22) and be laid with the tube bank (25) of being heated that upper and lower twice are returned cigarette, being heated to restrain into the mouth place and being provided with into the cigarette rear pass together below, its front end is provided with front smoke box (26), make flue gas enter the top tube bank of being heated that connects together logical chimney (20), the tube bank (25) that makes to be heated is subject to heat exchange with the cold wind that air inlet (21) enters.

2. chain type fire coal gasfication hot blast environment-protection boiler according to claim 1, is characterized in that described upper and lower twice return the heat insulation aerofoil (24) that tube bank (25) middle part that is heated of cigarette is provided with one hot blast trend.

3. chain type fire coal gasfication hot blast environment-protection boiler according to claim 1, is characterized in that described closed arc arch wall (3) lower end offers the fuel input port (1) that connects upper fuel bucket (27).

4. chain type fire coal gasfication hot blast environment-protection boiler according to claim 1, is characterized in that the logical cigarette arch wall (5) of described arc is provided with the netted exhaust hole (6) with laying fireproof bricks.

5. chain type fire coal gasfication hot blast environment-protection boiler according to claim 1, the smoke-refeed mouth place that it is characterized in that described arc plagioclase arch bridge (11) top is laid with the netted firebreak (10) with laying fireproof bricks, is provided with the firebreak (12) of building with thermostable high-alumina cement in netted firebreak (10) rear.

6. chain type fire coal gasfication hot blast environment-protection boiler according to claim 1, is characterized in that described preheated burning district (4) is provided with preheated burning district stoker and sees vent (2).

7. chain type fire coal gasfication hot blast environment-protection boiler according to claim 1, is characterized in that described convection current is provided with by slag burning-out zone stoker and sees vent (9) by slag burning-out zone (23).

8. according to the described chain type fire coal gasfication hot blast of claim 1 or 7 environment-protection boiler, it is characterized in that described convection current is provided with shoot door (13) by slag burning-out zone (23) rear end.

9. chain type fire coal gasfication hot blast environment-protection boiler according to claim 1, is characterized in that the described drum that is heated (22) rear end is provided with smoke pipe shoot door (18).