CN2259403Y

CN2259403Y - Biomass negative-oxygen high-temp pyrolyzing gasification furnace

Info

Publication number: CN2259403Y
Application number: CN 96214990
Authority: CN
Inventors: 朱显敏; 张凤阳
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-06-26
Filing date: 1996-06-26
Publication date: 1997-08-13
Anticipated expiration: 2006-06-26

Abstract

The utility model relates to a biomass negative-oxygen high-temperature pyrolyzing gasification furnace. The upper part of a shell body is provided with a feeding port which is provided with a closing cover, the middle part is provided with a circular airflow slot, and the lower part of the shell body is provided with an air-intaking port. An ash-removing door is arranged at the lower part of the left side, and an ash-removing chamber is arranged at the lower part of a furnace grate. The back face of the circular airflow slot is provided with a fuel-gas outlet, the interface of the fuel-gas outlet is connected with an evaporator, and a double-layer clamping sleeve is filled with working medium. A guiding pipe arranged at the upper part of the outer layer of the evaporator is connected with a condenser, the lower part of the condenser is provided with an air-exhausting valve, and the upper part of the condenser is provided with an emptying valve. The inner cavities of the condenser and the evaporator are provided with assembling heat pipes provided with fins. The gasification furnace can make full use of waste materials, such as straws, etc., the energy is saved, and the environment is not be polluted.

Description

Biomass are born the oxygen high temperature pyrolysis gasification furnace

The utility model relates to the negative oxygen high temperature pyrolysis gasification furnace of a kind of biomass, belongs to the technical field of vapourizing furnace.

Usually timber, grain all need to handle and could properly preserve through oven dry, unlikely rotten, need use hotblast stove during oven dry, be main thermal source with coal, oil, electricity always, makes cost up, and be subjected to the restriction of thermal source, can not adapt with the needs of production development, wood chip, sawdust, tangerine bar etc. all go out of use on the other hand, and underuse, both contaminate environment did not play the effect of making the best use of everything yet.

The purpose of this utility model is to provide a kind of biology to bear the oxygen high temperature pyrolysis gasification furnace; it can overcome above-mentioned shortcoming; mainly utilize wood chip, sawdust, tangerine bar the like waste as the energy; make inflammable gas through vapourizing furnace; convert hot blast to by the separate heat pipe heat-exchange equipment again, available oven dry grain, timber, but both save energy; also can protect environment, also can reduce the cost of timber grain simultaneously.

The purpose of this utility model is achieved in that

A kind of biomass are born the oxygen high temperature pyrolysis gasification furnace, it is characterized in that housing (1) left upper end has opening for feed (2), sealing cover (3) is housed, the bottom is provided with a blast inlet (4), soot door (6) is arranged at the bottom, left side, housing (1) middle part is tapered, its top is a gasification reactor chamber (7), the bottom extends to form an annular air chute (11) downwards, the below cone-shaped body of groove forms a combustion chamber (10), be grey chamber (9) below the grate (8), annular air chute (11) back side communicates with combustion gas delivery port (12), and its interface (13) joins with vaporizer (14);

The housing of vaporizer (14) is double-jacket (16), filling operation medium (36) in the chuck, there is ellipsoidal head (17) (18) at vaporizer (14) two ends, end socket (18) connects chimney flange-interface (19), the combination heat pipe (20) that has fin (21) is arranged in the vaporizer inner chamber, the outer top of vaporizer (14) is equipped with vapour conduit (22) and is joined with condenser (15) vapour catheter interface (31), the housing (25) of condenser (15), there is ellipsoidal head (26) (27) at two ends, join with blower fan (28) and hot air duct (29) respectively, the combination heat pipe (35) of band fin (34) also is housed in condenser (15) inner chamber, and this heat pipe communicates with chuck (16).

Vent valve (33) is arranged at condenser (15) bottom, and an exhaust-valve (30) is equipped with at the top, and fluid catheter interface (23) is arranged at vaporizer (14) bottom, joins with condenser (15) and fluid catheter interface (24).

Working medium is a Dowtherm.

The synoptic diagram of the negative oxygen high temperature pyrolysis gasification furnace of Fig. 1 biomass;

Fig. 2 biomass are born oxygen high temperature pyrolysis gasification furnace side-view.

By Fig. 1, housing (1) left upper end has an opening for feed (2), and sealing cover (3) is housed, lower housing portion is provided with a blast inlet (4), and join with gas blower (5), the bottom, left side have one can opening and closing soot door (6), can remove ashes thus, the wall thickness overstriking of housing (1) middle part becomes a taper, and extend downwards the bottom, form an annular airslide (11), the below of groove is again a cone-shaped body, forms a combustion chamber (10), and its top is gasification reactor chamber (7), form combustion chamber with refractory material casting in the housing (1), being grate (8) below combustion chamber (1), cylinder iron making, is grey chamber (9) below the grate (8), corresponding with ash door (6), annular air chute (11) back side communicates with combustion gas delivery port (12), interface (13) is set outside housing (1) joins with separate type heat pipe exchanger, and this interchanger comprises vaporizer (14) and condenser (15) two portions composition.

Vaporizer (14) has a cylindrical shell, make with the steel material, and be double-jacket (16), the interior filling operation medium-Dowtherm of chuck (16) (36), the vaporizer two ends are ellipsoidal heads (17) (18), end socket (18) center drilling, chimney flange-interface (19) is housed, the a considerable amount of combination heat pipes (20) that have fin (21) are housed in the vaporizer inner chamber, vaporizer outer field top perforate, one vapour conduit (22) is housed, this pipe (22) extends upward with the vapour catheter interface (31) of condenser (15) and is connected, base of evaporator is equipped with fluid catheter interface (23), this interface extends and the fluid catheter interface (24) of condenser (15) joins, end socket (17) center is also porose, the combustible gas pipe joint is housed and combustion gas delivery port (12) joins, condenser (15) also has a round shape steel material to make housing (25), respectively there is an ellipsoidal head (25) (27) at two ends, the equal opening in its center, join with blower fan (28) respectively and join with the hot air duct (29) of drying room, an exhaust-valve (30) is equipped with at condenser (15) top, is used for getting rid of the air in this heat-exchange system, makes it become vacuum state.

Vapour catheter interface (31) is equipped with in condenser (15) top, the other end has fluid catheter interface (23) and vaporizer fluid catheter interface (24) to join, a vent valve (33) is equipped with in condenser (15) bottom, be used for getting rid of noncondensable gas in the heat-exchange system, same condenser inner chamber also is equipped with the combination heat pipe (35) of many band radiating fins (34), and the heat pipe two ends communicate with chuck (16).

Principle of work:

At first biological material, wood chip for example, tangerine bar etc., send into the vapourizing furnace inner chamber from the opening for feed (2) of vapourizing furnace, cover sealing cover (3) again, go up igniting at vapourizing furnace grate (8), in the time under negative oxygen hot conditions, biological material is an inflammable gas by pyrolysis, send into vaporizer (14) inner chamber by annular gas tank (11) by combustion gas output channel (12), the heat that is discharged by ignition igniting afterfire is absorbed by vaporizer (14) inner chamber wall and combination heat pipe, make working medium (Dowtherm) (36) gasification in the heating system, its latent heat is again in vapour conduit (22) is delivered to condenser (15), and the dryer of being transported to drying room for heat release the air of condenser, the air of heating is used for desiccated wood or grain, become liquid state after the hot steam condensation in the heating system, come together in fluid catheter, under the effect of high bit gravity and thermal siphon, flow back to vaporizer (19) and continue to be heated condensation again, reflux again, thus circulation repeatedly.

The working medium Dowtherm is a liquid material, and the ignition (not shown) is equipped with in just vaporization after the heating in the combustion gas admission port, and igniter is convenient.

Compared with prior art, biomass negative-oxygen high-temp pyrolyzing gasification furnace has following advantages:

1, can take full advantage of wood chip, sawdust, tangerine bar the like waste, fuel saving.

2, can reduce the harmfulness of tangerine bar the like waste environmental pollution;

3, ashes are stored up in grey chamber, dispose from the ash disposal mouth again;

4, phase-change heat transfer, the efficient height.

Claims

1, the negative oxygen high temperature pyrolysis gasification furnace of a kind of biomass, it is characterized in that housing (1) left upper end has opening for feed (2), sealing cover (3) is housed, the bottom is provided with a blast inlet (4), soot door (6) is arranged at the bottom, left side, housing (1) middle part is tapered, its top is a gasification reactor chamber (7), the bottom extends to form an annular air chute (11) downwards, the below cone-shaped body of groove forms a combustion chamber (10), be grey chamber (9) below the grate (8), annular air chute (11) back side communicates with combustion gas delivery port (12), and its interface (13) joins with vaporizer (14);

The housing of vaporizer (14) is double-jacket (16), filling operation medium (36) in the chuck, there is ellipsoidal head (17) (18) at vaporizer (14) two ends, end socket (18) connects chimney flange-interface (19), the combination heat pipe (20) that has fin (21) is arranged in the vaporizer inner chamber, the outer top of vaporizer (4) is equipped with vapour conduit (22) and is joined with condenser (15) vapour catheter interface (31), the housing (25) of condenser (15), there is ellipsoidal head (26) (27) at two ends, join with blower fan (28) and hot air duct (29) respectively, the combination heat pipe (35) of band fin (34) also is housed in condenser (15) inner chamber, and this heat pipe communicates with chuck (16).

2, vapourizing furnace according to claim 1 is characterized in that vent valve (33) is arranged at condenser (15) bottom, and an exhaust-valve (30) is equipped with at the top, and fluid catheter interface (23) is arranged at vaporizer (14) bottom, joins with condenser (15) and fluid catheter interface (24).