CN2595809Y

CN2595809Y - Coal burning gasifying furnace

Info

Publication number: CN2595809Y
Application number: CN 02291928
Authority: CN
Inventors: 陈兴其; 吴国呈
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-12-23
Filing date: 2002-12-23
Publication date: 2003-12-31
Anticipated expiration: 2012-12-23

Abstract

The utility model relates to a coal burning gasifying furnace, which relates to the technical field of coal burning furnaces. The middle part of a grate is convex and the top surface of the grate is provided with an ash scraping rib. One end of the bottom surface of the grate is connected with a dialing rod which is arranged outside a furnace shell. A water tank is respectively communicated with a gas sleeve and a water sleeve through a water valve, and the gas sleeve is communicated with an ash bin in the furnace through a steam pipe. An annular water channel which is communicated with the water tank is arranged in a furnace lining and the upper part of the annular water channel is communicated with a plurality of gasifying pipes which are distributed in the furnace lining, and the top parts of the gasifying pipes are communicated with the gas sleeve. The utility model can be used for producing burning gas, and compared with the prior art, the problems of off-normal gas production and easy coking of coal slag in the furnace and the furnace lining can be solved by the coal burning gasifying furnace. In addition, the utility model has the advantage of easy and convenient slag discharge.

Description

Coal-fired gasification furnace

Technical field

The utility model relates to the coal furnace technical field, especially a kind of stove and accessory with coal and aquatic producing coal gas.

Background technology

Coal-fired gasification furnace need react to generate combustible coal gas incendiary coal and water vapor in the burner hearth of sealing when work.Existing coal-fired gasification furnace, grind " heat converter " of the design of new and high technology development centre as northern science, this transmodulator is in use found following deficiency: the one, and its fire grate is the circular flat fence structure, in its stove the discharge of cinder be by an end stretch out that furnace shell is outer, the rotating shaft of band rocking handle drives fire grate and swings up and down and realize, therefore, burner hearth deslagging difficulty often need be come deslagging with weight hammering rocking handle; The 2nd, fire box temperature is difficult to control, in the long period after igniting gas making undesired, need repeatedly the compartment of terrain to open flue gas; The 3rd, fire when prosperous at stove fire, temperature height in the stove, coal-fired easily the generation burnt partially and caused cinder coking and furnace lining to bond together, the damage furnace lining.

Summary of the invention

The purpose of this utility model provides a kind of coal-fired gasification furnace, and it mainly solves the problem of cinder and the easy coking of furnace lining in the undesired and stove of prior art gas making.

In order to address the above problem, the scheme that the utility model adopts is: it includes water tank, furnace shell, be located at water jacket, escape pipe, fire grate, grey storehouse on the furnace shell and the burner hearth that surrounds by furnace lining, the middle part projection of described fire grate, its end face is provided with scraping rib, and the middle part of its bottom surface driving lever outer with being contained in described furnace shell is connected; Described water tank is communicated with by water valve and the air-casing with described furnace shell formation sandwich structure; Be provided with the water annulus that is communicated with by water valve with described water tank in the described furnace lining, this water annulus top is communicated with the many vapor lamps that are distributed in the described furnace lining, the top of described vapor lamp is communicated with described air-casing, and described air-casing is communicated with described grey storehouse by vapour pipe.

Above-mentioned water annulus can directly be communicated with the bottom of described air-casing.Above-mentioned escape pipe can be provided with by in the described water tank, and the part of this escape pipe in described water tank reduces gradually along outgassing direction.Also can be provided with a blast pipe and enter in the described grey storehouse from the furnace shell outside, described vapour pipe is communicated with described blast pipe.Above-mentioned water tank can be provided with the steam output tube, and this steam output tube and steams the thing case and is communicated with.The inlet of above-mentioned escape pipe preferably is provided with ash retaining cover, and the outlet of this escape pipe can be communicated with a coal gas output tube and a chimney which is provided with valve respectively.

Owing to adopted such scheme the utility model compared with prior art to have following beneficial effect:

1, owing on furnace shell, is provided with the air-casing and the water jacket of sandwich structure, in furnace lining, be provided with the water annulus that is communicated with by water valve with water tank and be communicated with the many vapor lamps that are distributed in the furnace lining on water annulus top, this structure is provided with on the one hand and can makes the temperature of furnace lining to regulate by water valve, make its temperature that both had been fit to the burner hearth coal-fired gasification, be unlikely the cinder bonding that causes furnace lining burning and fusing again; On the other hand, no matter coal-fired middle part, bottom or middle and upper part burning in burner hearth all can make water obtain the ideal gasification result to this structure, guarantees that gas production is normal in the stove.

2, the middle part projection of fire grate makes air intake be blown into the burner hearth center, allows fire coal concentrate on burner hearth centre burning, in case coal-fired the burning partially and cause the furnace lining burning and melt coking.

3, the end face at fire grate is provided with scraping rib, the structure that is connected with driving lever outside being contained in described furnace shell at the middle part of its bottom surface, with teeter make lime-ash drop the prior art in grey storehouse compare make scrape ash become very light easily.

4, the escape pipe setting is passed through in the water tank, and the setting that its part in water tank is reduced gradually along outgassing direction, can make major part be mixed in the condensation in escape pipe of water vapour in the coal gas and discharge, prevent that these water vapour from splashing in the stove and influence the normal gas making of stove in the roof of the furnace condensation.

Description of drawings

Fig. 1 is the front view of the utility model embodiment.

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

Embodiment

Below in conjunction with the accompanying drawing example structure of the present utility model is described in further detail:

Fig. 1, shown in Figure 2, the upper end of this coal-fired gasification furnace is provided with steams thing case 3 and water tank 19, the side of water tank 19 is provided with water inlet pipe 18 and water shoot 17, be provided with the steam output tube 1 of band valve above the water tank 19, steam output tube 1 is communicated with steaming thing case 3 by a threeway, makes the steam that produces in the water tank 19 supply with steaming thing case 3 boiling article and uses.In water tank 19, an escape pipe 20 of drawing from the furnace shell top is arranged, the part of escape pipe 20 in water tank 19 reduces gradually along outgassing direction, makes the water vapour condensation on tube wall when entering escape pipe 20 that is mixed in the coal gas, flows out along Way out.The outlet of escape pipe 20 is provided with one fen gas drip chamber 22, and this chamber is communicated with the chimney 2 and the coal gas output tube 24 of a band valve respectively, can discharge from water valve 23 from escape pipe 20 effusive water of condensation with at the water of condensation that minute gas drip chamber 22 generates.Valve on the chimney 2 was opened at the burner hearth igniting initial stage, was beneficial to the burner hearth internal combustion and heated up, and allowed too much water vapour discharge from chimney 2 simultaneously; When ordinary production coal gas, close the valve on the chimney 2, make coal gas from 24 outputs of coal gas output tube.

The furnace shell side of water tank 19 bottoms is provided with the coal filling hole 4 of band hermatic door.Also be provided with the air-casing 12 and the water jacket 7 of the sandwich structure that forms with furnace shell on the furnace shell, the top loop of air-casing 12 is outside the furnace shell except that coal filling hole 4, the bottom of air-casing 12 and water jacket 7 join and are looped around outside the furnace shell, wherein the bottom of air-casing 12 accounts for 1/3rd circles of furnace shell, water jacket 7 accounts for 2/3rds circles of furnace shell, the top of water jacket 7 is connected to tracheae 16 and is communicated with the top of water tank 19, makes the steam that produces in the water jacket 7 feed the top of water tank 19.The bottom of water tank 19 is communicated with the bottom of water jacket 7 by water valve 5, water pipe 6, and water drain valve 8 is equipped with in the lower end of water pipe 6.When this stove need stop gas making for a long time, when keeping kindling material, can cut out water valve 5, open water drain valve 8, allow the water in the water jacket discharge, allow burner hearth keep suitable temperature, in case flame-out.The bottom of water tank 19 is communicated with the bottom of air-casing 12 by water valve 15, water pipe 14, and water drain valve 11 is equipped with in the lower end of water pipe 14.When this stove need stop gas making for a long time, when keeping kindling material, can cut out water valve 15 equally, open water drain valve 11, allow the ponding in the water jacket discharge.The middle part of air-casing 12 also is provided with water drain valve 13, to discharge too much ponding in the air-casing 12.

In furnace shell, the top of dividing plate 30 and fire grate 27 is burner hearths 33, and the side of burner hearth 33 is surrounded by the furnace lining 25 that is made of refractory mortar.In the furnace shell, the below of dividing plate 30 and fire grate 27 is grey storehouses 29.The ingress of escape pipe 20 in burner hearth 33 is provided with ash retaining cover 21; Be provided with the water annulus 31 that is communicated with air-casing 12 in the furnace lining 25, the top of water annulus 31 is communicated with four vapor lamps 32 that stand upright in the furnace lining 25, and the upper end of vapor lamp 32 is communicated with the top of air-casing 12.The middle part projection of fire grate 27 is beneficial to be blown into from the gas mixture of the air under it, water vapour the middle part of burner hearth 33 bottom surfaces, makes fire coal concentrate on the centre burning, in case coal-firedly burn partially in the side and cause furnace lining 25 temperature to cross high fever and melt coking.The middle part of fire grate 27 bottom surfaces has been provided with the driving lever 10 of support and driving effect, and an end of driving lever 10 passes the furnace shell bottom surface and stretches out to the side of body of heater, is provided with the scraping rib of outside radiation arrangement at the end face of fire grate 27.Stir driving lever 29 and drive fire grate 27 rotations, the scraping rib that is located at fire grate 27 end faces can scrape the cinder on it like a cork to be fallen in the grey storehouse 29.The side in ash storehouse 29 is provided with the ash discharging hole 9 of blast pipe 28 and band hermatic door, and the top of air-casing 12 is connected vapour pipe 26, and the lower end of vapour pipe 26 blast pipe 28 interior with entering grey storehouse 29 is communicated with.

Claims

1, a kind of coal-fired gasification furnace, it includes water tank, furnace shell, is located at water jacket on the furnace shell, escape pipe, fire grate, grey storehouse and by the burner hearth that furnace lining surrounds, it is characterized in that:

The middle part projection of A, described fire grate, its end face is provided with scraping rib, and the middle part of its bottom surface is contained in the outer driving lever of described furnace shell with an end and is connected;

B, described water tank are communicated with by water valve and the air-casing with described furnace shell formation sandwich structure;

Be provided with the water annulus that is communicated with by water valve with described water tank in C, the described furnace lining, this water annulus top is communicated with the many vapor lamps that are distributed in the described furnace lining, the top of described vapor lamp is communicated with described air-casing, and described air-casing is communicated with described grey storehouse by vapour pipe.

2, coal-fired gasification furnace according to claim 1 is characterized in that; Described water annulus is communicated with the bottom of described air-casing.

3, coal-fired gasification furnace according to claim 1 and 2 is characterized in that: described escape pipe is by in the described water tank, and the part of this escape pipe in described water tank reduces gradually along outgassing direction.

4, coal-fired gasification furnace according to claim 3 is characterized in that: have a blast pipe to enter in the described grey storehouse from the furnace shell outside, described vapour pipe is communicated with described blast pipe.

5, coal-fired gasification furnace according to claim 4 is characterized in that: described water tank is provided with the steam output tube, and this steam output tube is communicated with steaming thing case.

6, coal-fired gasification furnace according to claim 5 is characterized in that: the inlet of described escape pipe is provided with ash retaining cover, and the outlet of this escape pipe is communicated with a coal gas output tube and a chimney which is provided with valve respectively.

7, coal-fired gasification furnace according to claim 5 is characterized in that: water drain valve is equipped with in the bottom of described air-casing and described water jacket.