CN2198276Y

CN2198276Y - Gas generating stove with central tube

Info

Publication number: CN2198276Y
Application number: CN 94217470
Authority: CN
Inventors: 杨赉教
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-07-30
Filing date: 1994-07-30
Publication date: 1995-05-24
Anticipated expiration: 2004-07-30

Abstract

The utility model relates to a single section type gas generating stove, which utilizes a center pipe way to control layer height in the stove and increase gas quality. The single section type gas generating stove suspends a central pipe 4 whose upper side is small and lower side is big in an original single section stove. Coal blocks are filled in the upper part of the central pipe 4, and are linked with a coal feeder 1 by a mechanical material exploring mechanism 3 to enable material levels to maintain an A height and control the position and the shape of material surface at a B in the stove; meanwhile, a novel single section type gas generating stove having the advantages of high gas heating value, good energy saving effect, convenient operation, low price is designed by the measures of a high stove body, a deep bed, an enlarged pressure-stabilizing chamber, etc.

Description

Gas generating stove with central tube

The utility model belongs to a kind of unistage type producer gas generator.

China's Energy policy is clearly attached most importance to coal.Will changing of past oil firing burns gas, and newly-built enterprise also will burn gas, and the demand of producer gas generator is increased year by year.Domestic present widely used producer gas generator mainly is the producer gas generator of 3M-13,3M-21, three kinds of different sizes of W-G, accounts for 80% of sum.These three kinds of type of furnaces all belong to the unistage type producer gas generator, all are the old products that the fifties is introduced from the Soviet Union, and it is low to exist caloric power of gas, outlet of still gas pressure, temperature instability, gas leakage is serious, and workman's manipulation strength is big, the carbon content of cinder height, problem such as thermo-efficiency is low.

In order to address these problems, Taiyuan Heavy Machinery Plant was released the TG-3M moulded coal gas producer of development newly in 1989.This stove is to dispose whipping appts on W-G type stove, enlarges the gasification coal, and the part operation system has realized automatic control.But this stove is to change with gas outlet temperature to control the coal time, fails scientifically to control bed thickness.

The purpose of this utility model provides a kind ofly can control bed thickness, caloric power of gas height, the novel unistage type producer gas generator of good energy-conserving effect automatically.

The utility model producer gas generator core is at the inner pipe core that increases a up-small and down-big band awl of stove, make stove coal cinder in normal gasification be filled up to pipe core top always, and mix a kind of mechanical type and visit material mechanism and stoker interlock, control controlling level automatically.Adopt good, the tangible unistage type producer gas generator of energy-saving effect of a kind of performance of measure designs such as furnace body, the thick bed of material and expansion pressure stabilizing chamber simultaneously.

Producer gas generator and other unistage type producer gas generator of band pipe core relatively have the calorific value height, and outlet of still gas temperature, pressure-stabilisation are easy to operate, and gas leakage is few, and gasification is thorough, the thermo-efficiency advantages of higher.And have performance, parameter much at one with the present domestic continous way double zone gas producer that is developing, and investment only is about half of two sections stoves.

Fig. 1 is that the vertical profile of the producer gas generator of the utility model band pipe core is looked synoptic diagram.

Fig. 2 is that mechanical type is visited the material mechanism principle figure.

In conjunction with the accompanying drawings, the utility model is described in detail as follows:

Replace conventional dropped coal cone with tapered tube 2 below the stoker shown in Fig. 11.Up-small and down-big pipe core 4 of middle insertion utilizes the flange of pipe core and bell 5 to connect, and pipe core 4 is suspended in the stove.Stove is when normal gasification, and coal is added to pipe core 4 tops, visits material mechanism 3 and stoker 1 interlock by mechanical type, makes material level remain on the height of A automatically.Owing to fill coal cinder in the pipe core 4, make the interior charge level of stove remain at B position and shape shown.

After pipe core 4 was set in the stove, material level improved, and had dwindled the free drop of coal, had reduced the percentage of damage of lump coal.The interior charge level of stove can remain at the position of B simultaneously, has controlled bed thickness effectively, inclined to one side stove phenomenon no longer occurs, has reduced operation labour intensity, has improved Gas Quality.Because pipe core 4 is filled up by coal cinder, when the belljar valve of stoker 1 is opened coal, reduced influence to the pressure and temperature of stove exit coal gas, reduced gas leak, protected environment, saved the energy.Simultaneously, charge level remains at the position of B by pipe core 4 in the stove, also with regard to worrying that no longer stove stops up gas exit 6 too much because of coal, has controlled the content of carry-over (dust) in the coal gas.

In effective control stove the position of charge level and shape take simultaneously to increase body of heater 7 height (400～500mm), make bed of material thickening, keeping fire bed (furnace reduction layer thickening (300～400mm) CO under 100～200mm) situations like this ₂+ C → 2CO-Q; H ₂O+C → H ₂The reaction of+CO-Q is accelerated, and carbonic oxide and hydrogen content increase.Thicken because of the bed of material simultaneously, the also corresponding increase of destructive distillation layer (100mm), the methane that cracking produces, the olefines material increases.Because pipe core 4 is set, coal can be finished drying process in pipe core 4, will discharge by stoker 1 by the moisture content of thermal evaporation, no longer enters among the coal gas, and caloric power of gas improves.The caloric power of gas of the producer gas generator output of the utility model band pipe core can reach 4.18 * 1600KJ/M ³, improve about 18% than other unistage type producer gas generator caloric power of gas.This index has surpassed upper and lower section coal gas mixed number of two sections stoves of present domestic continous way (4.18 * 1500KJ/M ³).

The utility model also take fire grate base circumference wall increase little air port 8 and enlarge fire grate base pressure stabilizing chamber 9 measures such as grade raising fire grate tuyere diameter than Di/D and stove in actual dynamic strength Ii(=Fi/F), it is more even that vaporized chemical is distributed, and it is more complete to gasify.So not only enlarged gasification coal scope (coke removal, outer weak viscosity bituminous coal, the brown coal etc. of can also gasifying of hard coal).And make that carbon content is controlled at below 8% in the lime-ash, reach purpose of energy saving (carbon content is about 10%-20% in the general producer gas generator lime-ash).

Mechanical type is visited material mechanism 3, and principle as shown in Figure 2.This mechanism drives material detecting rod by stoker 1 rotating shaft overhead cam 10 and connecting rod 11 to lift and put down, and realizes that by travel switch 13 stoker 1 is according to material level height automatic stoking in the stove.

Claims

1, a kind of unistage type producer gas generator, form by stoker, body of heater, pressure stabilizing chamber etc., it is characterized in that: a pipe core of center suspension (4) in the stove, and by mechanical type spy material mechanism (3) and stoker (1) interlock, make controlling level remain on position A, and make the shape of charge level maintenance B in the stove; Increase the height of body of heater (7) and the volume of pressure stabilizing chamber (9) simultaneously.

2, producer gas generator according to claim 1 is characterized in that: pipe core (4) utilizes flange to be suspended in the middle of the bell (5) for up-small and down-big, and its height dimension just in time is general single hop stove dead level height, can adopt heat resisting iron to cast.

3, producer gas generator according to claim 1, it is characterized in that: machinery is visited material mechanism (3) and is made by cam (10), linkage assembly (11) and travel switch (13) to play mechanical stoker (1) when the coal seam descends in the stove, stops coal when the A of material level in-position.

4, producer gas generator according to claim 1 is characterized in that: the general single hop producer gas generator body of the height of body of heater (7) increases 400～500mm.

5, producer gas generator according to claim 1 is characterized in that: the general single hop producer gas generator of the volume of pressure stabilizing chamber (9) increases about 1/3, and increases by 16 little air ports (8) in fire grate base peripheral wall surface.