CN200992535Y - Biomass gasifying and tar cracking apparatus - Google Patents

Abstract

A tar cracking device of gasification of biomass is because of the oven tar cracking of gasification of biomass, resolving the problems that the available tar cracking device of gasification of biomass is inadequate combustion and the deficiency of tar cracking. The oven body is formed by an inside oven and a outer cylinder, where a feeding door, top cover of the oven, bottom cover of the oven, a decontamination door, support legs, a manipulative mouth, a feeding mouth are equipped. A support board, a downside oven grid, a feeding box, inner feeding door, a cone top, a support of the oven grid, and an oven grid are equipped from the bottom to top in turn. Gas outlet tube is equipped in the feeding box and top oven cover, where the decontamination cover is equipped. The advantages are: tar is fully cracked to make the gasification of biomass safer.

Description

The biomass gasification tar cracking device

Technical field: this device is to be used for biomass gasification tar cracking, the biomass gasification boiler coke tar cracking, and the invention is the improvement to the biomass gasification tar cracking device.

Background technology: at present, existing biomass gasification tar cracking device, the biomass route that gasifies in stove is: biological material drops into from top, under the effect of vacuum pump or Spiral fan, biomass after lighting reflect by thermochemistry, pass drying, destructive distillation, oxidation, reducing zone from the body of heater lower side to extraction, because the combustible gas stream footpath is short out, the combustible gas flow velocity is fast, can not be utilized by 900 ℃ of cracking temperatures of tar, carry high-temperature combustible gas and hightail vapourizing furnace, cause gasifying biomass not thorough, combustible gas after coming out of the stove still carries a small amount of tar, and carrying high-temperature combustible gas is that follow-up combustible gas cooling has brought burden.

Summary of the invention: the purpose of the invention provides a kind of biomass gasification tar cracking device that tar fully is cracked into permanent combustible gas; The purpose of the invention is achieved through the following technical solutions:

The biomass gasification tar cracking device, comprise the stove urceolus, the stove inner core is installed in its stove urceolus, stove urceolus and stove inner core constitute cavity, back up pad is installed in the bottom in the stove inner core, lower fire grate is installed on back up pad, stuffing box is installed on lower fire grate, filler door in installing on the filler tank wall is installed the taper top on stuffing box, hatch frame is made in the stuffing box lower end, fire grate is installed on the stuffing box upper end wall to be supported, fire grate is installed in fire grate and supports, and gas outlet pipe lower end is installed on the stuffing box, and the mouth of pipe communicates with the stuffing box inner chamber, tube inner chamber in the gas outlet Guan Jinglu, furnace top cover links to each other with outer net, on gas outlet pipe top the flap of removing contamination is installed, at the stove urceolus, furnace top cover is installed on the last top of stove inner core, and the furnace bottom lid is installed in its lower end, charging opening is installed on furnace top cover, gathering hole, under the furnace bottom lid, leg is installed, at the stove urceolus, on the stove inner tube installation lower fire grate, soil-shifting door is installed at the place, below, filler door outside installing above lower fire grate.

The advantage of the invention: because the taper top has been installed in the manufacturing of the upper end of stuffing box, force the hot fixed carbon that is mixed in the thick combustion gas rolling of on the taper roof, bouncing, deceleration is gone slowly, and velocity of flow is reduced than straight terminal-velocity degree, and fixed carbon is fully burned; Because stuffing box has been installed in stove, the height of stuffing box has prolonged the route of flowing through of combustible gas again, and making does not have incendiary fixed carbon to burn away on a small quantity, and fixed carbon is fully burned, tar obtains sufficient cracking, reduces the tar side effect of combustible gas to pipe network and kitchen range; In biomass gasification process, install filler additional at stuffing box, combustible gas flows downward from the stuffing box outer wall, enter stuffing box from the stuffing box bottom opening and promptly claim downdraft, combustible gas is through stuffing box particle curve dust-separating, and when combustible gas remained in a standstill at the filler particles curve, a spot of carbon monoxide and hydrogen were effectively made up, reduced the content of the carbon monoxide in the combustible gas, made straw fuel gas safer; Tube inner chamber is drawn from furnace top cover in the gas outlet Guan Jinglu, the biological material that newly advances stove is carried out preheating during tube inner chamber in stove, has also reduced the combustible gas temperature, and the cooling of postorder has been brought convenience; Utilize this biomass gasification tar cracking device promptly to increase gasifying stalk thermochemical processes oxygen consumption, reduced the oxygen level of combustion gas again.

Description of drawings:

Fig. 1 is a biomass gasification tar cracking apparatus structure synoptic diagram;

Fig. 2 is an A-A sectional view among Fig. 1.

Embodiment: biomass gasification tar cracking device: by stove urceolus 1, stove inner core 2, outer filler door 6, soil-shifting door 8,9,17, leg 20, furnace bottom lid 21, back up pad 19, lower fire grate 18, stuffing box 15, interior filler door 7, taper top 14, fire grate supports 5, fire grate 3, gas outlet pipe 11, gathering hole 13, charging opening 12, the flap 10 of removing contamination, furnace top cover 22 constitutes, the stove inner core is installed in the stove urceolus, constitute a cavity between stove urceolus and the stove inner core, adorn water in the cavity, in the biomass gasification tar cracking process, water layer can play insulation effect, simultaneously also can provide hot water, at the stove urceolus, furnace top cover is installed on the last top of stove inner core, at the stove urceolus, the furnace bottom lid is installed in the lower end of stove inner core, at the stove urceolus, outer filler door is installed on the sidewall of stove inner core, on the installation lower fire grate, soil-shifting door is installed at the place, below, for removing contamination conveniently, at a plurality of soil-shifting doors of installation that do not exist together, below the furnace bottom lid, leg is installed, back up pad is installed in the bottom in stove, lower fire grate is installed on back up pad, stuffing box is installed on lower fire grate, hatch frame is made in the stuffing box lower end, the taper top is installed in the stuffing box upper end, filler door on the stuffing box sidewall, installing, interior filler door is corresponding with outer filler door, be convenient to install additional filler, filler adopts rhombspar, also can adopt this charcoal, biological charcoal processing, filter the dust in the combustible gas, the taper top can fall by damping fixed carbon, make the fixed carbon particle whereabouts of on the taper roof, bouncing, reduce the falling velocity of fixed carbon, fixed carbon is fully burned, the abundant cracking of tar, in the stuffing box upper end fire grate being installed supports, support the upper end at fire grate fire grate is installed, gas outlet pipe lower end is fixedly mounted on the filler tank wall, the gas outlet pipe end communicates with the inner chamber of stuffing box, the inner chamber of gas outlet Guan Jinglu inner core, be fixedly mounted on the furnace top cover, in gas outlet pipe upper end the flap of removing contamination is installed, be convenient to remove the dust in the gas outlet pipe, fitting operation mouth on furnace top cover, charging opening, gathering hole are convenient to observe, operation.Light after in the inner chamber of stove inner core, installing biological material additional when using this device, the thermal chemical reaction of the drying of incendiary biomass by forming naturally, destructive distillation, oxidation, reducing zone, the combustible gas that is produced flows downward from the stuffing box outer space, enter stuffing box from lower fire grate and filter dust, enter outside ductwork from the gas outlet pipe.

Claims (1)

1, the biomass gasification tar cracking device, comprise the stove urceolus, it is characterized in that: the stove inner core is installed in the stove urceolus, stove urceolus and stove inner core constitute cavity, back up pad is installed in the bottom in the stove inner core, lower fire grate is installed on back up pad, stuffing box is installed on lower fire grate, filler door in installing on the filler tank wall is installed the taper top on stuffing box, hatch frame is made in the stuffing box lower end, fire grate is installed on the stuffing box upper end wall to be supported, fire grate is installed in fire grate and supports, and gas outlet pipe lower end is installed on the stuffing box, and the mouth of pipe communicates with the stuffing box inner chamber, tube inner chamber in the gas outlet Guan Jinglu, furnace top cover links to each other with outer net, on gas outlet pipe top the flap of removing contamination is installed, at the stove urceolus, furnace top cover is installed on the last top of stove inner core, and the furnace bottom lid is installed in its lower end, charging opening is installed on furnace top cover, gathering hole, under the furnace bottom lid, leg is installed, at the stove urceolus, on the stove inner tube installation lower fire grate, soil-shifting door is installed at the place, below, filler door outside installing above lower fire grate.

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