CN101975406B

CN101975406B - Nickel-based catalyst biomass gasification furnace

Info

Publication number: CN101975406B
Application number: CN201010533825.1A
Authority: CN
Inventors: 张新才
Original assignee: 王崟
Current assignee: Yiyang science and Technology Achievement Transformation Service Center
Priority date: 2010-11-08
Filing date: 2010-11-08
Publication date: 2014-04-02
Anticipated expiration: 2030-11-08
Also published as: CN101975406A

Abstract

The invention relates to a biomass gasification furnace, in particular to a nickel-based catalyst biomass gasification furnace. The nickel-based catalyst biomass gasification furnace comprises a furnace body, wherein the top of the furnace body is provided with a water sealed tank and a furnace cover; the furnace cover is provided with a corresponding water sealed ring; the outer side of the lower part of the furnace body is provided with an air blower and a blast pipe connected with the air blower; the end heads of the air supply pipe at the lower part in the furnace body are provided with wind-homogenizing caps; one side of the bottom of the furnace body is provided with an ash hole; and the blast pipe is provided with an oxygen replenishment tube which is connected with an oven chamber. The invention is characterized in that the oven chamber is arranged at the center of the furnace cover; the lower part of the oven chamber is suspended in the furnace body and provided with a cracking converter; and the outer end of the cracking converter is provided with a filtering cap in which nickel-based catalyst tablets and an activated aluminium oxide molecular sieve are subsequently arranged. The nickel-based catalyst biomass gasification furnace can crack incombustible waste gas to convert the incombustible waste gas into inflammable gas by the crack, thereby improving burning efficiency, reducing loss and avoiding the generation of tar. The nickel-based catalyst biomass gasification furnace has the advantages of compact structure, little occupied area, simple operation, long service time and low production cost.

Description

Nickel-based catalyst biomass gasification furnace

Technical field

The present invention relates to a kind of biomass gasifying furnace.

Background technology

Biomass gasifying furnace is that being intended to of developing of people utilized biomass resource to make a kind of kitchen range of the renewable sources of energy in recent years, although there is good development prospect, real technology maturation, can generally be promoted few.Mainly there is following problem in miscellaneous various biomass gasifying furnaces at present: the one, and huge structure, floor space is many.Now nearly all its aerogenesis stove of gasification furnace, gas-cooker, clarifier is all separated, connects, if the structure of the patent No. biomass gasifying furnace that is 200810020019.7 is exactly like this with pipeline; The 2nd, clarifier is simple filtering exhaust and water vapour.As the patent No. a kind of biomass gasifying furnace that is 200720063401.7, use be activated carbon filtration waste gas, with the condensed water steam that anhydrates; The 3rd, complex structure.As just quite complicated in the water conservancy diversion plenum chamber structure of the patent No. gasification furnace for combustible matter that is 200920092896.5, be difficult to safeguard; The 4th, efficiency is low.Existing biomass gasifying furnace is because kitchen range divide and are arranged, and it is far that the mist that burning produces leaves body of heater, and gas cooling obviously, makes it efficiency of combustion grand low; The 5th, the tar producing is many, blocking pipe, and contaminated environment, affects household attractive in appearance; The 6th, too short with the fire time.Fuel pressure is too tightly just difficult to automatic blanking, and the interior burning of furnace easily forms cavity, just there is no gas after burning, and mostly can only after feeding in raw material, be difficult to again aerogenesis with more than one hour, pleasnt to the eye but of no use; The 7th, inconvenience is used in operation; The 8th, production cost is high.

Summary of the invention

The object of the invention is to disclose a kind of problem that existing biomass gasifying furnace exists that overcomes, adopt nickel-base material to make catalyst, with activated alumina, make molecular sieve, waste gas can be converted into fuel gas, simple and compact for structure, easy to operate, efficiency of combustion is high, long with the fire time, the biomass gasifying furnace that production cost is low.

Technical solution of the present invention is: nickel-based catalyst biomass gasification furnace, comprise body of heater, at body of heater top, be provided with water sealed tank and bell, bell is provided with corresponding water seal circle, in lower portion of furnace body outside, be provided with air blast and the blast pipe that is connected air blast, the termination of the ajutage of the bottom in body of heater is provided with equal blast cap, in bottom of furnace body one side, be provided with ash hole, blast pipe is connected to joins oxygen pipe and is connected with kitchen range chamber, its special character is that kitchen range chamber is located at the central authorities of bell, the bottom of kitchen range chamber is suspended in body of heater, in the bottom of kitchen range chamber, be provided with cracking converter, the outer end of cracking converter is provided with filter cap, the inside is provided with nickel-base catalyst sheet and active oxidation aluminum molecular screen successively.

The present invention, owing to having adopted above technical scheme, has the following advantages: the one, the waste gas cracking of not directly burning can be converted into fuel gas, and greatly improve the efficiency of combustion of gasification furnace; The 2nd, cooking stove is directly arranged on body of heater, and kitchen range chamber is located in body of heater, and high-temperature gas is carried without pipeline, directly supplies kitchen range chamber, has improved efficiency of combustion, has reduced loss, has avoided the generation of tar simultaneously; The 3rd, compact conformation, floor space is few, simple to operate, and long with the fire time, production cost is low.

Accompanying drawing explanation

Accompanying drawing 1 is looked schematic diagram for master of the present invention.

The specific embodiment

Below in conjunction with embodiment, the present invention is further illustrated, nickel-based catalyst biomass gasification furnace, comprise body of heater [7], at the top of body of heater [7], be provided with water sealed tank [16] and bell [3], bell [3] is provided with corresponding water seal circle [17], at body of heater [7] lower outside, be provided with air blast [8], the ajutage [6] that connects air blast [8], ajutage [6] termination of the bottom in body of heater [7] is provided with equal blast cap [11], all the side of blast cap [11] has blast orifice [10], in the bottom of body of heater [7], a side is provided with ash hole [9], the inner end of ash hole [9] is designed to half of tubular, the inboard of body of heater [7] is provided with one deck fireprotection layer [12], a upper lateral part at body of heater [7] is provided with exhaust opening [1], central authorities at bell [3] are provided with kitchen range chamber [4], the bottom of kitchen range chamber [4] is suspended in body of heater [7], in the upper end of kitchen range chamber [4], can be provided with infra-red furnace [20], infra-red furnace [20] is comprised of ceramic burner plate [19] and black alloy combustion wire cover [20], overcoat has a snail frame [21], what on top, kitchen range chamber [4], be provided with belt switch [2] joins oxygen pipe [5], the lower end of joining oxygen pipe [5] is connected with ajutage [6].In the bottom of kitchen range chamber [4], be provided with cracking converter [22], the outer end of cracking converter [22] is provided with filter cap [15], filter cap [15] is comprised of steel wire network folder one deck asbestos, and the inside of cracking converter [22] is provided with nickel-base catalyst sheet [14] and active oxidation aluminum molecular screen [13] successively.The design form of cracking converter [22] can be various, can be square, oval, and quantity is the amount doesn't matter, as long as guarantee that air inflow can meet burning needs.The present embodiment is cylindrical shape cracking converter, is symmetrical arranged 8.The edge of the upper end-face edge of body of heater [7] and bell [3] can arrange pivoting support, and implementation is articulated and connected, and is convenient to bell [3] upset, joins oxygen pipe [5] and is designed to flexible pipe, and at this moment the height of water seal circle [17] can not be too high, guarantee that bell can normally overturn.The gas that body of heater of the present invention produces is without can directly entering kitchen range chamber by external pipe, greatly improve burning of gas efficiency, avoided tar to produce and the pollution to environment simultaneously, particularly the cracking by cracking converter transforms, part non-combustible gas catalytic pyrolysis can be changed into fuel gas, improved thermal energy conversion rate, the equal blast cap of bottom can be avoided fuel and the obstruction of ash to blast orifice, and half of cylindrical shape ash hole can prevent the obstruction of fuel to ash hole.The present embodiment compact conformation, easy to operate, once reinforcedly can reach 3-4 hour with the fire time, than prior art, improve nearly one times, while cost of manufacture is low.Owing to thering is above advantage, overcome some problems of existing gasification furnace, can obtain liking of peasant, by become a kind of see in not only but also in the new kitchen range of the energy-saving and emission-reduction that have promotion prospect used.

Claims

1. nickel-based catalyst biomass gasification furnace, comprise body of heater [7], at body of heater [7] top, be provided with water sealed tank [16] and bell [3], bell [3] is provided with corresponding water seal circle [17], at body of heater [7] lower outside, be provided with air blast [8] and the ajutage [6] that is connected air blast [8], the termination of the ajutage [6] of the bottom in body of heater [7] is provided with equal blast cap [11], all the side of blast cap [11] has blast orifice [10], in body of heater [7] bottom, one side is provided with ash hole [9], ajutage [6] is connected to joins oxygen pipe [5] and is connected with kitchen range chamber [4], it is characterized in that kitchen range chamber [4] is located at the central authorities of bell [3], what on top, kitchen range chamber [4], be provided with belt switch [2] joins oxygen pipe [5], the bottom of kitchen range chamber [4] is suspended in body of heater [7], in the bottom of kitchen range chamber [4], be provided with cracking converter [22], the outer end of cracking converter [22] is provided with filter cap [15], the inside is provided with nickel-base catalyst sheet [14] and active oxidation aluminum molecular screen [13] successively.

2. nickel-based catalyst biomass gasification furnace according to claim 1, is characterized in that filter cap [15] is comprised of steel wire network folder one deck asbestos.

3. nickel-based catalyst biomass gasification furnace according to claim 1, is characterized in that the inner end of ash hole [9] is designed to half of tubular.