CN2512989Y

CN2512989Y - Improved biological matter gasifier

Info

Publication number: CN2512989Y
Application number: CN 01263202
Authority: CN
Inventors: 朱德田
Original assignee: DETIAN ENERGY SOURCE SCIENCE AND TECHNOLOGY DEVELOPMENT Co Ltd ANHUI PROV
Current assignee: DETIAN ENERGY SOURCE SCIENCE AND TECHNOLOGY DEVELOPMENT Co Ltd ANHUI PROV
Priority date: 2001-10-12
Filing date: 2001-10-12
Publication date: 2002-09-25
Anticipated expiration: 2011-10-12

Abstract

The utility model relates to an improved biological matter gasifier, which comprises a feeding mechanism, a gasifying furnace, a wet dust collector, a circular water purifying pool, a monitor, a vacuum pump, a gas storing tank, a connection pipeline and a valve. A tar purifier(5) is arranged between the output end of the wet dust collector and the input end of the vacuum pump(6). At the same time, the former reverse burning gasifying furnace is changed into orderly burning gasifying furnace(3), effectively improving the conversion rate and purifying rate of the gas, with the gas conversion rate up to 90 percent to 95 percent, and the gas purifying rate up to over 98.5 percent, thereby possessing perfect social economic benefits and extensive popularization prospect.

Description

Improved biological matter gasifier

Title: a kind of improved biomass gasification device

Technical field: the utility model relates to a kind of biomass gasification device.

Background technology: gasifying biomass is a kind of novel energy that has DEVELOPMENT PROSPECT and potentiality.So-called gasifying biomass is meant satisfactory combustiblematerials, as exsiccant rice husk, wheat straw, bavin firewood, leaf, beanstalk, corn stalk, kaoliang stalk etc., and a kind of inflammable gas of hot cracked generation in corresponding equipment for gasification device.But, the device that is used for gasifying biomass at present, because its vapourizing furnace that is used for gasifying biomass adopts the structure of reverse combustion type, and the layout structure of the gas-cleaning installation after it is used to gasify is also not too reasonable, therefore, the gas reforming rate of this device generally only is 70-75%, and the tar content in its gas is generally also at 20mg/m, and gas reforming rate and gas purification degree are all lower.

Summary of the invention:

Technical problem to be solved in the utility model is: a kind of improved, gas reforming rate and all higher biomass gasification device of gas purification degree are provided.

Its technical scheme is: a kind of improved biomass gasification device, comprise feeding machanism, vapourizing furnace, wet scrubber, recirculating water purification pond, watch-dog, vacuum pump, gas-holder and connecting tube and valve, it is characterized in that: have additional the tar purifying device between the output terminal of described wet scrubber and the input terminus of vacuum pump.

The feed bin bottom on described vapourizing furnace top is horn-like feed opening of touching the pillow, and the furnace wall of the vaporizer at its middle part is provided with the infrared reflection plate that is connected with temperature sensor, and the bottom of vaporizer is provided with the rotary furnace bar by the motor transmission.

Described tar purifying device is made of housing and the filtering layer that is located at the inlet, outlet on the housing and be located in the housing central authorities, is provided with the division plate that tilts to both sides respectively more than two on the filtering layer at least.

Technique effect: the utility model is owing to improve existing reverse combustion type vapourizing furnace, and to have set up one-level be the tar purifying device of filtering layer by nano material, so improved the transformation efficiency and the degree of purification of gas effectively, its gas reforming rate is up to 90-95%, gas purification degree is up to more than 98.5%, and promptly tar content only is 5mg/m; Simultaneously, the gas combustion value that this device is produced can reach 5200kg/m, also the combustion value height of the similar gas of producing than original device.In addition; the gasification materials of this device are extensive; the straw of any plant all can be used as raw material; be convenient to peasant the gather materials on the spot processing and the utilization of science that straw is carried out; both can thoroughly change the cooking custom that the traditional smoke fire in rural area burns; greatly improve peasant's quality of life and standard of living; can realize that again low-quality energy high quality transforms; the protection environment; help promoting the construction of rural area material civilization and cultural and ideological progress and the Sustainable development of the ecological agriculture, have favorable social and economic benefits and wide promotion prospect.

The drawing explanation:

Fig. 1 is the utility model one-piece construction connection diagram;

Fig. 2 is the structural representation of vapourizing furnace;

Fig. 3 is the structural representation of tar purifying device.

Embodiment:

As shown in Figure 1, this gasification installation is made up of feeding machanism, vapourizing furnace, wet scrubber, tar purifying device, recirculating water purification pond (not showing among the figure), watch-dog, vacuum pump, gas-holder and connecting tube, valve.Feeding machanism 1 is high-lift pulverizer.Realize automatic feed, raw material enters pulverizer from spout and is admitted to vapourizing furnace 3 through pipeline 2 after crushed.The vapourizing furnace (see figure 2) adopts along combustion formula structure, and its top is feed bin 3-1, and the bottom of feed bin is horn-like feed opening of touching the pillow, so that raw material can be scattered equably.Its middle part is vaporizer 3-2, the furnace wall of vaporizer is provided with the infrared reflection plate 3-2-2 that is connected with temperature sensor, temperature sensor flows to temperature regulator with the temperature variation signal of vaporizer, be laid in the on/off of the electric heating device in the vaporizer by temperature controller control, automatically remain within the thermo-cracking temperature range of biomass material the best with the temperature in the assurance vaporizer, promptly between 760 ℃-1100 ℃.One side of vaporizer offers lighting-up tuyere 3-2-3, adopts electronic pulse ignition.The vaporizer bottom is provided with the rotary furnace bar 3-2-4 by the motor transmission, can realize removing automatically cindery purpose.The bottom of vapourizing furnace 3 is deashing storehouse 3-3.The opening for feed of raw material through vapourizing furnace 3 tops enters feed bin 3-1 and is scattered in equably in the vaporizer 3-2 again, and at high temperature thermo-cracking generates combustible mixture, and mixed gas is transported to wet scrubber 4 coolings, dedusting by the air outlet that is located at top of gasification furnace.Mixed gas because the raw material that falls with feed bin is staggered, thereby both can carry out preliminary filtration and cooling to mixed gas by the raw material that falls before coming out of the stove, mixed gas also can give heat to the raw material that falls and heats simultaneously.Gas after wet scrubber 4 coolings, dedusting is transported to tar purifying device 5 through pipeline and further purifies.Tar purifying device (see figure 3) is made of housing 5-1 and the filtering layer 5-4 that is located at inlet, outlet 5-2, the 5-3 on the housing and be located in the housing central authorities.Filtering layer is provided with three respectively to the both sides division plate 5-5 of obliquity slightly, makes gas form planet rotation type in the intravital motion of shell, to realize the multiple times of filtration to mixed gas, reaches the purpose of purification.Filtering layer 5-4 adopts novel nano-material to make.Purge gas after the tar purifying device is handled, be transported to gas-holder 7 on the one hand by vacuum pump 6 and store for future use, be transported to watch-dog 8 on the other hand, the variation of flame during by the observation gaseous combustion, quality that can analysis and judgement gas is so that in time take appropriate measures.

Claims

1, a kind of improved biomass gasification device, comprise feeding machanism, vapourizing furnace, wet scrubber, recirculating water purification pond, watch-dog, vacuum pump, gas-holder and connecting tube and valve, it is characterized in that: have additional tar purifying device (5) between the input terminus of the output terminal of described wet scrubber (4) and vacuum pump (6).

2, a kind of gasification installation as claimed in claim 1, it is characterized in that: feed bin (3-1) bottom on described vapourizing furnace (3) top is horn-like feed opening of touching the pillow, the furnace wall of the vaporizer (3-2) at its middle part is provided with the infrared reflection plate (3-2-2) that is connected with temperature sensor, and the bottom of vaporizer is provided with by the rotary furnace bar of motor transmission (3-2-4).

3, a kind of gasification installation as claimed in claim 1, it is characterized in that: described tar purifying device (5) is by housing (5-1) and be located at the inlet, outlet (5-2,5-3) on the housing and the filtering layer (5-4) that is located in the housing central authorities constitutes, and is provided with the division plate (5-5) that tilts to both sides respectively more than two on the filtering layer (5-4) at least.

4, a kind of gasification installation as claimed in claim 3 is characterized in that: described filtering layer (5-4) is a nano material.