CN1079525C - Gasification method for city garbage and garbage gasification furnace - Google Patents
Gasification method for city garbage and garbage gasification furnace Download PDFInfo
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- CN1079525C CN1079525C CN 98111279 CN98111279A CN1079525C CN 1079525 C CN1079525 C CN 1079525C CN 98111279 CN98111279 CN 98111279 CN 98111279 A CN98111279 A CN 98111279A CN 1079525 C CN1079525 C CN 1079525C
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Abstract
The present invention relates to a method and a gasification furnace thereof for gasifying municipal refuse. Processing steps comprise that municipal refuse is sieved, incombustible inorganic matter is removed, coal powder is added after combustible organic matter is cut up, fuel is formed by mechanical extrusion, the fuel enters the gasification furnace for a gasification reaction at a high temperature, and pentane is added to the gasification furnace to generate gas having high heat value through cracking. The gasification furnace is provided with an air suction pipe opening, a total air suction pipe joint, a furnace body, a water seal ring, a deslagging cutter, a liquid heating oil conveying pipe, a slag blocking ring, a slag mixer and a water seal ring of a rotary gear on the basis of the existing backfire type coal gas producer. The gasification furnace has the characteristics of low cost, no pollution, convenient use and easy generalization, and the refuse can be changed into renewable energy resources.
Description
The present invention relates to be a kind of with domestic waste through being processed into the rubbish shaped fuel, and directly enter the gasification process and the municipal refuse gain of heat gasification furnace of the municipal refuse of producing clean gas in the gasification furnace.
At present do not find to produce the method for city domestic gas as yet, but the gasification furnace similar with prior art arranged, as the reflecting gas producer (patent No.: 86206045.1) with rubbish.During this stove operation, required gasifying agent is to enter in the stove from last fire door in the stove, with the suitable gasification reaction that is directed downwards of coal charge, technology is easy, operate simple and easy, safety and sanitation are carried out simultaneously because the interior coal charge of stove is reduced into earlier the furnace purge and the gasification of coal gas again after high temperature oxidation process, and its environmental benefit is comparatively desirable.But the shortcoming that exists: the slag-drip opening of the dreg removing system of reflecting gas producer all is arranged under the stove around the ash-pan, owing to be subjected to the restriction of the gear diameter size and intensity of transmitting gear water seal circle, and can't be to the development of big specification type of furnace aspect (now be only limited to diameter 2.4 meters in).
The purpose of this invention is to provide and a kind ofly establish the municipal refuse gain of heat gasification furnace that slag-drip opening is not subjected to transmitting gear water seal circle gear diameter size and intensity restriction, come domestic waste is gasified, produce the town gas of cleaning with this stove by stove lower central position.
Technical solution of the present invention:
The gasification process of municipal refuse, its processing step branch:
(1) earlier with domestic waste through selection by winnowing or screening, (2) remove wherein incombustible inorganic matter, (3) various flammable organic matters are built broken, grating or pulverizing, add the solid fuel coal dust that accounts for its gross weight 30%, (4) become the rubbish shaped fuel with mechanical presses, (5) under the high temperature about 1300 ℃, carry out gasification reaction in the adding municipal refuse gain of heat gasification furnace, and in the furnace reduction layer, add the pentane or the oil plant of Different Weight, through being cracked into the fuel gas of different calorific values.
Municipal refuse gain of heat gasification furnace, comprise by last fire door 1, furnace roof 2, upper furnace 3, destructive distillation layer 4, oxide layer 5, reducing zone 6, ash bed 7, deslagging auger 12, stove seat 13, body of heater chuck 15, refractory lining 16, body of heater 17, body of heater support column 21, be provided with the mouth of pipe 8 of bleeding around in the stove bottom, be provided with total exhaust tube joint 9 in the bottom of the mouth of pipe 8 of bleeding, be provided with body of heater water seal circle 10 in the lower end of furnace bottom, be provided with dreg discharging knife 11 in the bottom of water seal circle 10, in oxide layer 5, be provided with liquid gain of heat oil plant (pentane) input pipe 14, be provided with pushing off the slag circle 18 in the bottom of body of heater 7, be provided with stirrer 19 at furnace bottom slag-drip opening center, around the top of stove seat 13, be provided with transmitting gear water seal circle 20.
Dreg removing system is arranged on stove lower central position, and furnace bottom stirrer 19 and dreg discharging knife 11 and transmitting gear water seal circle 20 central shafts connection pipe join, and stirrer places transmitting gear water seal circle central shaft connection pipe top, and dreg discharging knife places transmitting gear water seal circle bottom.
Stove lower central slag-drip opening is arranged on centre, stove lower end, by a circular holder slag plate, establishes slag-drip opening at the plate center.
Advantage of the present invention:
1, not limited by transmitting gear water seal circle gear diameter size and intensity by stove lower central position slag-drip opening.
2, can be with the resource of rubbish as the renewable sources of energy.For the city dweller provides clean town gas.
3, low, pollution-free, energy-conservation, easy to use, the easy popularization of cost.
Accompanying drawing is the structural representation of municipal refuse gain of heat gasification furnace of the present invention.
Among the figure 1 is that last fire door, 2 is the body of heater support column for transmitting gear water seal circle, 21 for stirrer, 20 for pushing off the slag circle, 19 for body of heater, 18 for refractory lining, 17 for body of heater clamp, 16 for liquid gain of heat oil plant input pipe, 15 for stove seat, 14 for deslagging auger, 13 for dreg discharging knife, 12 for body of heater water seal circle, 11 for total exhaust tube joint, 10 for the stove following peripheral mouth of pipe, 9 of bleeding for ash bed, 8 for reducing zone, 7 for oxide layer, 6 for destructive distillation layer, 5 for upper furnace, 4 for furnace roof, 3.
Further describe know-why of the present invention and technical solution below:
Municipal refuse gain of heat gasification furnace is to grow up on the basis of reflecting gas producer gasification principle, so-called reflecting gas producer is meant that the interior top air pressure of gas generator thorax is greater than the bottom air pressure in the burner hearth, make formation micro-vacuum state from top to down in the stove, gasifying agent from top to bottom, coal charge generation redox reaction in destructive distillation layer, oxide layer, reducing zone, ash bed and stove, the fuel gas of generation is by the outer back-fire type gasification of coal gasification method of producer bottom output furnace.Yet, the present invention earlier with domestic waste through with selection by winnowing or screening, remove incombustible inorganic matter wherein, various flammable organic matters built broken, grating or pulverized the back add an amount of solid fuel coal dust, become the rubbish shaped fuel with mechanical presses, add in the stove and carry out gasification reaction.Municipal refuse gain of heat gasification furnace is when operation, required gasifying agent (air, oxygen, oxygen enrichment, steam) enters various harmful fuel gas that furnace chamber and rubbish shaped fuel discharged when the destructive distillation from last fire door and mixes in the stove, and be sucked into jointly into following oxide layer, after high temperature oxidation process, generating high temperature carbon dioxide, continuing to be inhaled into being reduced into clean fuel gas in the following reducing zone again.Owing to the calorific value of the fuel gas of producing with domestic waste is lower, be the calorific value that improves municipal refuse gain of heat gasification furnace output fuel gas, when the gasification operation, can be with pentane (C
5H
12) wait various liquid oil plants to add cracking in the reducing zone of furnace high-temperature anoxics, increase stove and go out calorific value in the coal gas, but its coal gas caloric value gain of heat is to 6-15 million Jiao/m
3(1500-3500 kilocalorie/m
3), also available various high heating value fuel gas and stove go out coal gas blending use simultaneously.
The concrete structure of municipal refuse gain of heat gasification furnace is: municipal refuse gain of heat gasification furnace mainly comprises the adding system of rubbish shaped fuel, body of heater, coal gas system (or blower system) gasifying agent input channel in dreg removing system and the suction stove, liquid gain of heat fuel feed nozzle in the gain of heat fuel feed tube of liquid oil plant and the stove in rubbish gain of heat coal gas output channel and the input stove, inboard wall of furnace body has refractory lining, the gasifying agent input channel is opened on gasification furnace top or furnace roof portion, extract system is connected in after the rubbish gain of heat coal gas output channel, make by extract system and to produce negative pressure in the stove, gasifying agent from top to bottom gasification operation reaction in gasification furnace, and with the rubbish gain of heat coal gas that produces in the stove from the output of gasification furnace bottom, extract system and blower system also can be used simultaneously, input liquid gain of heat fuel feed tube leads to one or more liquid fuel nozzles, nozzle is arranged in the furnace reduction layer, dreg removing system and transmitting gear water seal circle centre link with axle connection pipe, and form dreg removing system by top stirrer and bottom dreg discharging knife, slag-drip opening is opened on stove lower central position, by the moving axle connection pipe that is arranged on the centre of transmitting gear water seal astragal, go up and stirrer, following and dreg discharging knife links, stove bottom lime-ash is entered auger under the stove, discharge out of the furnace by auger.
Embodiment 1,
Select municipal refuse gain of heat gasification furnace, 3 meters of its diameters, high 8.6 meters, with domestic waste through selection by winnowing, remove wherein old metal (copper, iron etc.) and foreign material such as glass, rubble, again the house refuse after selection by winnowing is pulverized, add the coal dust that accounts for its gross weight 30%, be squeezed into the rubbish shaped fuel with shaping extruder, add in the above-mentioned municipal refuse gain of heat gasification furnace, carry out gasification reaction under the high temperature in stove about 1300 ℃, and adding and coal dust etc. weigh pentane in the furnace reduction layer, and cracking generates the high heating value fuel gas.Burn the town gas of usefulness for the resident.
Per hour consume rubbish shaped fuel 1000kg, consumption pentane 300kg, gas production 1500-2000m
3, the fuel gas calorific value of generation is 10-12.5 million Jiao/m
3(2500-3000 kilocalorie/m
3) about.
Embodiment 2,
Select municipal refuse gain of heat gasification furnace, 2.4 meters of its diameters, high 6.5 meters, with domestic waste through the screening, remove old metal (copper wherein, iron etc.) and glass, foreign material such as rubble, to pulverize through the house refuse after the screening again, add the coal dust that accounts for its gross weight 30%, be squeezed into the rubbish shaped fuel with shaping extruder, enter in the above-mentioned municipal refuse gain of heat gasification furnace, carry out gasification reaction under the high temperature in stove about 1300 ℃, and in the furnace reduction layer, add again and heavy diesel fuel such as coal dust, the fuel gas of high heating value is made in cracking, burns the town gas of usefulness for the city dweller.
Per hour consume rubbish shaped fuel 500kg, consumption diesel oil 150kg, gas production 750-1000m
3, the fuel gas calorific value of generation is 10-12.5 million Jiao/m
3(2500-3000 kilocalorie/m
3) about.
Claims (4)
1, the gasification process of municipal refuse, it is characterized in that processing step branch (1) with domestic waste through selection by winnowing or screening, (2) remove wherein incombustible inorganic matter, (3) various flammable organic matters are built broken, grating or pulverizing, add the solid fuel coal dust that accounts for its gross weight 30%, (4) become the rubbish shaped fuel with mechanical presses, (5) under 1300 ℃ of left and right sides high temperature, carry out gasification reaction in the adding municipal refuse gain of heat gasification furnace, and in the furnace reduction layer, add the pentane or the oil plant of Different Weight, through being cracked into the fuel gas of different calorific values.
2, municipal refuse gain of heat gasification furnace, comprise by last fire door (1), furnace roof (2), upper furnace (3), destructive distillation layer (4), oxide layer (5), reducing zone (6), ash bed (7), deslagging hinge dragon (12), stove seat (13), body of heater chuck (15), refractory lining (16), body of heater (17), body of heater support column (21), be provided with the mouth of pipe of bleeding (8) around it is characterized in that in the body of heater bottom, be provided with total exhaust tube joint (9) in the bottom of the mouth of pipe of bleeding (8), be provided with body of heater water seal circle (10) in the lower end of furnace bottom, establish dreg discharging knife (11) in the bottom of water seal circle (10), in oxide layer (5), be provided with liquid gain of heat oil plant pentane input pipe (14), be provided with pushing off the slag circle (18) in the bottom of body of heater (17), be provided with stirrer (19) at furnace bottom slag-drip opening center, around the top of stove seat (13), be provided with transmitting gear water seal circle (20).
3, municipal refuse gain of heat gasification furnace according to claim 2, it is characterized in that dreg removing system is arranged on stove lower central position, furnace bottom stirrer (19) and dreg discharging knife (11) and transmitting gear water seal circle (20) central shaft connection pipe join, stirrer places transmitting gear water seal circle central shaft connection pipe top, and dreg discharging knife places transmitting gear water seal circle bottom.
4, municipal refuse gain of heat gasification furnace according to claim 2 is characterized in that stove lower central slag-drip opening is arranged on centre, stove lower end, by a circular holder slag plate, establishes slag-drip opening at the plate center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98111279 CN1079525C (en) | 1998-05-05 | 1998-05-05 | Gasification method for city garbage and garbage gasification furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98111279 CN1079525C (en) | 1998-05-05 | 1998-05-05 | Gasification method for city garbage and garbage gasification furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1196463A CN1196463A (en) | 1998-10-21 |
| CN1079525C true CN1079525C (en) | 2002-02-20 |
Family
ID=5221271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98111279 Expired - Fee Related CN1079525C (en) | 1998-05-05 | 1998-05-05 | Gasification method for city garbage and garbage gasification furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1079525C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1300504C (en) * | 2005-03-10 | 2007-02-14 | 中南大学 | High-temperature flash gasification apparatus and technology |
| CN101817012B (en) * | 2009-02-27 | 2012-02-29 | 上海神工环保股份有限公司 | Gasification treatment device for household refuse |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003093726A1 (en) * | 2002-04-30 | 2003-11-13 | Maosen Lin | High efficiency and high temperature cracking system with heat storage for sewage and organic garbage |
| CN1844744B (en) * | 2006-02-16 | 2010-05-12 | 深圳市埃玛特实业有限公司 | Urban domestic refuse incineration and power generation process |
| CN104595905A (en) * | 2013-10-30 | 2015-05-06 | 徐小芹 | Three-in-one garbage incineration method |
| CN104764019A (en) * | 2015-03-29 | 2015-07-08 | 安徽盛运环保（集团）股份有限公司 | MSW (Municipal Solid Waste) incineration method |
| CN105670698B (en) * | 2016-01-27 | 2018-09-07 | 神雾科技集团股份有限公司 | The system and method for handling low-order coal |
| CN105567338B (en) * | 2016-01-27 | 2018-07-13 | 神雾科技集团股份有限公司 | The system and method for handling low-order coal |
| CN105713631B (en) * | 2016-02-25 | 2018-04-20 | 神雾科技集团股份有限公司 | Pyrolysis reactor |
| CN110274238B (en) * | 2019-05-29 | 2020-11-06 | 广东人峰实业有限公司 | Household garbage smokeless pyrolysis gasification furnace with plate-bonding elimination function |
-
1998
- 1998-05-05 CN CN 98111279 patent/CN1079525C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1300504C (en) * | 2005-03-10 | 2007-02-14 | 中南大学 | High-temperature flash gasification apparatus and technology |
| CN101817012B (en) * | 2009-02-27 | 2012-02-29 | 上海神工环保股份有限公司 | Gasification treatment device for household refuse |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1196463A (en) | 1998-10-21 |
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