CN201620146U

CN201620146U - Tar back-flash gasification furnace

Info

Publication number: CN201620146U
Application number: CN2009200656867U
Authority: CN
Inventors: 伍昌於; 伍丽金
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-08-21
Filing date: 2009-08-21
Publication date: 2010-11-03
Anticipated expiration: 2019-08-21

Abstract

The utility model discloses a tar back-flash gasification furnace, which comprises a furnace body and a furnace cover. The furnace body is provided with an open upper portion and a sealed bottom; the furnace cover is covered on the furnace body; an air inlet, a slag outlet and an igniting hole are arranged on the lower portion of the furnace body; an air outlet is arranged on the upper portion of the furnace body; an inverted conical inner furnace body is placed inside the furnace body; through holes are arranged on the upper portion of the inner furnace body; and a gap is formed between the inner furnace body and the furnace body. The tar back-flash gasification furnace burns sufficiently without blockage and burnout of a grating and a hearth. Tar in gas sinking into the furnace body can be back-flashed and helps combustion. The tar back-flash gasification furnace is suitable for modified climate in northern part of China, can combust wood combustibles, and accordingly has larger popularization potential in the northern part of China.

Description

The tar backflash vapourizing furnace

Technical field

The utility model relates to combustion unit, specifically is a kind of tar backflash vapourizing furnace.

Background technology

At present, China is building the new rural area of environmental and ecological type, with depleted crop stalk, husk, straw, leaf etc. as biomass fuel, it is required for daily life to be used for vapourizing furnace generation combustion gas, but many biomass gasifying furnaces are in use because tar produces obstruction, cause result of use poor, though some addresses this problem by threeway, gas and oil separating plant, but it is all undesirable, existing in addition vapourizing furnace is not suitable for southern humid climate, and not good to wooden combustionmaterial burning, so south uses the vapourizing furnace scope wideless.

The utility model content

The purpose of this utility model just provides a kind of tar backflash vapourizing furnace, solves tar obstruction, the not good problem of southern humid climate vapourizing furnace behaviour in service.

The utility model technical scheme of taking of dealing with problems is: a kind of tar backflash vapourizing furnace, comprise that opened upper end has underseal to close shaft and bell, bell covers shaft, have blast inlet, slag notch, fire hole in the bottom of shaft, shaft top has the air outlet, have a back taper inner furnace body to be positioned in the shaft, inner furnace body top has through hole, forms the space between inner furnace body and shaft.

At described restoration of lower stack tubaeform grate is arranged, be formed centrally the hollow pipe that leads to the shaft bottom in the tubaeform grate, on the hollow pipe wall, have through hole.

The upper top of described inner furnace body and shaft has water sealing structure sealing, between interior shaft and bell water sealing structure sealing is arranged.

Water tank around shaft is arranged outside described shaft.

There is an above angle piece to contact in described inner furnace body bottom outside with shaft.

Be welded with corner block in the corresponding angle piece of described inner furnace body bottom inside position.

At the external tripping device in described shaft air outlet.

According to the tar backflash vapourizing furnace that the utility model is made, at first owing to hollow grate, sufficient combustion is difficult for stopping up, and does not burn out grate, burner hearth; Secondly the setting of inner furnace body and shaft form the space, the combustion gas that produces is stayed in this space, tar ingredients major part in the combustion gas settles down, be deposited in the tar in the shaft, then, strike off by the horn shape piece and fall on the grate, can strile-back by rotating inner furnace body, both reduce the tar content in the combustion gas, helped continuous burning again; Through the tripping device secondary separation outside the shaft, make the basic Ex-all of tar in the combustion gas, avoided the tar obstruction, reach the better effects that vapourizing furnace uses; The utility model southern humid climate that suits, wooden combustionmaterial can burn.Therefore has very big promotion potential in south.

Description of drawings

Describe the utility model in detail below in conjunction with accompanying drawing.

Fig. 1 is a structure sectional view of the present utility model.

Embodiment

With reference to Fig. 1, the tar backflash vapourizing furnace comprises that one has round-ended cylinder shape shaft 9, the shaft opened upper end, and shaft is surrounded with water tank 7 outside 9 middle parts, has water-in 10 and water outlet 3 on the water tank 7, and hot water can be provided; In position, shaft middle and lower part tubaeform grate 22 is arranged, biomass are stacked on it, be formed centrally the hollow pipe 2 that leads to the shaft bottom in this tubaeform grate, distance is left with shaft 9 bottoms in hollow pipe bottom 2, has small through hole 4 on the hollow pipe wall, and this design can form pressure, make things convenient for air intake, sufficient combustion is difficult for stopping up, and does not burn out grate, burner hearth; Grate 22 lower positions have blast inlet 23 and slag notch 1 on shaft 9, blast inlet 23 and small through hole 4 at grade, the position has fire hole 21 on the grate of shaft, shaft 9 tops have air outlet 15; Air outlet 15 external tripping devices 17, this device 17 is the square fully sheathed case, the casing middle upper portion has a length to be the dividing plate 18 of box height 2/3, have and air outlet 15 anastomosing inlet mouths on dividing plate 18 casing on one side, the other side casing has air outlet 16, bottom half has the water outlet 19 of band plug 20, following dress water in the case, and 15 combustion gas of coming out can be at this separating oil, gas, water from the air outlet; One back taper inner furnace body 8 is positioned in the shaft 9, tank 11 is arranged at shaft 9 body wall tops, the top of these inner furnace body 8 body walls is a H type structure 12, be placed in the tank 11 of shaft 9 body walls, add water in the groove, inner furnace body 8 is placed the back and is formed water sealing structure sealing, and bell 13 is positioned in the H type structure of inner furnace body 8, add water in the H type structure, bell 13 is placed the back and is formed water sealing structure sealing; 9 of inner furnace body 8 and shafts form the space, and inner furnace body 8 body wall tops have through hole 14, and combustion gas can enter into the space from through hole 14; Be welded with three blocks of horn shape iron 6 in that inner furnace body 8 exterior bottom are uniform, contact with shaft 9, rotation inner furnace body 8, horn shape iron 6 scraping shafts 9 can scrape tar, fall on the grate, strile-back; Be welded with a corner block 5 in corresponding one of them horn shape iron 6 position of inner furnace body 8 bottom inside, the biomass that help like this to stack fall; At inner furnace body 8 and shaft 9 top contact positions scroll wheel 24 is arranged, convenient rotation inner furnace body 8.The combustion gas that biomass burning produces enters inner furnace body 8 from the through hole 14 of inner furnace body 8 and stays with the space of shaft 9, and the most of tar of sedimentation separates through gas and oil separating plant 17 again, basically Ex-all the tar in the combustion gas, make combustion gas pure, be difficult for producing and stop up, improve the result of use of vapourizing furnace.

Claims

1. tar backflash vapourizing furnace, comprise that opened upper end has underseal to close shaft and bell, bell covers shaft, it is characterized in that: have blast inlet, slag notch, fire hole in the bottom of shaft, shaft top has the air outlet, have a back taper inner furnace body to be positioned in the shaft, inner furnace body top has through hole, forms the space between inner furnace body and shaft.

2. tar backflash vapourizing furnace according to claim 1 is characterized in that: at described restoration of lower stack tubaeform grate is arranged, be formed centrally the hollow pipe that leads to the shaft bottom in the tubaeform grate, have through hole on the hollow pipe wall.

3. tar backflash vapourizing furnace according to claim 1 and 2 is characterized in that: have an above angle piece to contact with shaft in described inner furnace body bottom outside.

4. tar backflash vapourizing furnace according to claim 1 and 2 is characterized in that: be welded with corner block in the corresponding angle piece of described inner furnace body bottom inside position.

5. tar backflash vapourizing furnace according to claim 1 and 2 is characterized in that: at the external tripping device in described shaft air outlet.

6. tar backflash vapourizing furnace according to claim 1 and 2 is characterized in that: the upper top of described inner furnace body and shaft has water sealing structure sealing, between interior shaft and bell water sealing structure sealing is arranged.

7. tar backflash vapourizing furnace according to claim 1 and 2 is characterized in that: the water tank around shaft is arranged outside described shaft.