CN106336903B - The generating device of coal gas - Google Patents

The generating device of coal gas Download PDF

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Publication number
CN106336903B
CN106336903B CN201610920139.7A CN201610920139A CN106336903B CN 106336903 B CN106336903 B CN 106336903B CN 201610920139 A CN201610920139 A CN 201610920139A CN 106336903 B CN106336903 B CN 106336903B
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furnace body
tube section
direct tube
parts
block board
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CN201610920139.7A
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CN106336903A (en
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桂军文
韩立志
程浩
姚运捷
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China National Chemical Engineering Sixth Construction Co Ltd
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China National Chemical Engineering Sixth Construction Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/16Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
    • Y02E20/18Integrated gasification combined cycle [IGCC], e.g. combined with carbon capture and storage [CCS]

Abstract

The invention discloses a kind of generating device of coal gas, gasification installation includes: upper furnace body, is vertically arranged, and upper combustion chamber is equipped in upper furnace body, and the side of upper furnace body is equipped with feed inlet;Lower furnace body is equipped with lower combustion chamber in lower furnace body, lower combustion chamber is connected to upper combustion chamber perpendicular to upper furnace body;Upper furnace body successively includes the first direct tube section, the changeover portion of hollow round table shape and the second direct tube section from top to bottom, and the diameter of the second direct tube section is greater than the diameter of the first direct tube section;It is enclosed upwards from one end from the first direct tube section equipped with multi-turn dust block board in changeover portion, towards center, each dust block board does not contact between 30~60 ° of angles obliquely and every two dust block board with participating in enclosing the circle set by dust block board the dust block board of each circle.The present invention keeps flue gas circulation more smooth by the direct tube section of the setting different-diameter in furnace, and setting dust block board solves the problems, such as easily to carry lime-ash in flue gas secretly, improves fuel utilization efficiency.

Description

The generating device of coal gas
Technical field
The present invention relates to coal gasification apparatus fields.It is more particularly related to a kind of generating device of coal gas.
Background technique
Coal Gasification Technology is to develop the process industrials such as coal-based chemicals, coal base liquid fuel, combined cycle generation, hydrogen manufacturing Basis is the key technology and leading technology of these industries.It is existing the carbonaceous fuel gasifyings such as coal, coke to be used air-flow In the technology that bed gasifies, representational dry coal powder gasification technology mainly has: the exploitation of the units such as East China University of Science, China More burner opposed type dry coal dust gasification furnaces, Shell gasification furnace, E-Gas gasification furnace and GSP gasification furnace and State Power Corporation The double-section dry coal powder gasifying furnace of hot working research institute.
In terms of airflow bed gasification furnace body design angle, two-part gasification is due to using fuel-staged combustion or oxygen classification Combustion technology compares unistage type gasification furnace, and in-furnace temperature distribution is more reasonable, and efficiency of carbon con version is high, and gasification heater outlet temperature is opposite It is slightly lower;It is flowed in terms of angle from entrained flow gasification product, synthesis gas upstriker is more suited to the production such as IGCC power generation, natural gas from coal Industry, and synthesis gas downlink is more suited to Chemical Manufacture, such as synthesis ammonia, synthesizing methanol industry.Existing synthesis gas upstriker gas Changing furnace major defect is that fluid field in furnace is unreasonable, easily carries the problems such as lime-ash is to influence fuel utilization efficiency secretly.
Summary of the invention
It is an object of the invention to solve the above problems, and provide the advantages of will be described later.
It is a still further object of the present invention to provide a kind of generating devices of coal gas, different straight by being arranged in upper furnace body The direct tube section of diameter keeps the flue gas generated circulation more smooth, and setting dust block board solves the problems, such as easily to carry lime-ash in flue gas secretly, improves The stability of gasification installation operation, improves fuel utilization efficiency.
In order to realize these purposes and other advantages according to the present invention, a kind of generating device of coal gas is provided, is wrapped It includes:
Gasification installation comprising:
Upper furnace body is vertically arranged, and the inside of the upper furnace body is equipped with upper combustion chamber, the side of the upper furnace body be equipped with into Material mouth, the feed inlet are communicated to the upper combustion chamber;
Lower furnace body, be set to the upper furnace body lower section and perpendicular to the upper furnace body, the inside of the lower furnace body is equipped with Lower combustion chamber, the lower combustion chamber are connected to the upper combustion chamber;
The upper furnace body from top to bottom successively include the first direct tube section, the changeover portion of hollow round table shape and the second direct tube section, Wherein the diameter of second direct tube section is greater than the diameter of first direct tube section, and first direct tube section and the lower furnace body connect It is logical;
One end in the changeover portion at first direct tube section is enclosed equipped with a circle dust block board, and multi-turn dust block board is in institute It states in changeover portion and successively sets up, the dust block board of each circle is the plate structure towards center, each described gear Hawk and as the dust block board participate in enclosing the circle that sets between dust block board described in 30~60 ° of angles obliquely and every two not Contact.
Preferably, the gasification installation further include:
Collect apparatus for ash, be set to the lower section of the bottom of the lower furnace body and be connected to the inside of the lower furnace body.
It preferably, further include remaining tank, one end is connected with the upper end of the upper furnace body by the connecting tube of inverted U, The lower part of the remaining tank is equipped with gas outlet, and internal coat has heat-absorbing material, and the terrain clearance of the remaining tank is higher than described The terrain clearance of lower furnace body;
The remaining tank includes reducer and vertical tank, wherein the reducer is connected with the connecting tube, and the change The diameter of one end close to the connecting tube of diameter section is less than one end far from the connecting tube of the reducer.
Preferably, the heat-absorbing material includes the raw material of following parts by weight:
20~30 parts of carbon fiber, 10~20 parts of polyvinyl alcohol, 10~20 parts of ethylene glycol terephthalate, 2- acrylamide 5~10 parts of base -2- methyl propane sulfonic acid, 5~10 parts of glycerin monostearate, 5~8 parts of polyether-ether-ketone, 5~8 parts of high hydroscopic resin, 1~3 part of chlorinated paraffin, 3~5 parts of sodium sulfate crystal, 3~5 parts of nano carbon microsphere, 3~5 parts of nano aluminium oxide, is received 3~5 parts of borax 1~3 part of silicon carbide of rice, 1~3 part of ammonium sulfate, 1~3 part of urea, 1~2 part of magnesium chloride and 1~2 part of gelatin.
Preferably, the collection apparatus for ash includes:
Lime-ash pipe is connected to the inside of the lower furnace body, and the lime-ash pipe is equipped with valve;
Cooling bath, is upper layer and lower layer structure, and the lime-ash pipe passes through lower layer from the centre on upper layer and connects with lower layer It is logical, be fixedly connected between the upper layer and lower layer of the cooling bath, the upper layer of the cooling bath is hollow sealing structure, upper layer it is upper Bottom surface is equipped with window to be opened/closed and the inside on upper layer is equipped with cooling liquid, and the lower layer of the cooling bath is equipped with drawer type can be to one The cabinet of side opening and closing.
Preferably, the upper furnace body is equipped at least a pair of first burner, and a pair of first burner is symmetricly set on described The two sides of upper furnace body, the two sides of the lower furnace body are symmetrically arranged with a pair of second burner, each first burner and the upper furnace The angle of body radial direction is 30~60 °;Each second burner and the angle of the lower furnace body axial direction are 45~60 °.
Preferably, the height of the upper furnace body is 4~8 times of the interior diameter of the second direct tube section of the upper furnace body, institute The interior diameter for stating lower furnace body is 1.2~1.8 times of interior diameter of second direct tube section, under the length of the lower furnace body is described 2~5 times of the interior diameter of furnace body.
The present invention is include at least the following beneficial effects:
In the generating device of coal gas of the invention, gasification installation is two-stage gasifier.By setting upper furnace body to Structure including the first direct tube section, changeover portion and the second direct tube section, and the diameter of the second direct tube section is greater than the straight of the first direct tube section Diameter, the upper diameter of upper furnace body are greater than lower part, so that it is more smooth into being flowed during flowing up in the flue gas of upper furnace body, The bigger surface area of the second direct tube section also enables the flue gas generated preferably absorb the sensible heat that gasification and burning generate simultaneously, makes furnace Flow field and temperature field are more reasonable, improve efficiency of carbon con version.Meanwhile the normal of flue gas is neither influenced in changeover portion setting dust block board Flowing, it is often more important that solve the problems, such as into entrainment of fine ash solid impurity particle, making grey solid impurity particle in the high-temperature flue gas of upper furnace body It can be sunk under the barrier effect of dust block board in collection apparatus for ash, even if cannot reach collection apparatus for ash is also to be adsorbed on dust block board Surface, the inner wall without being deposited in gasification furnace influences the service life of gasification furnace, to improve entire generating device The stability of operation, further improves fuel utilization efficiency and production efficiency.
Further advantage, target and feature of the invention will be partially reflected by the following instructions, and part will also be by this The research and practice of invention and be understood by the person skilled in the art.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the generating device of coal gas of the invention.
Specific embodiment
Present invention will be described in further detail below with reference to the accompanying drawings, to enable those skilled in the art referring to specification text Word can be implemented accordingly.
It should be noted that in the description of the present invention, term " transverse direction ", " longitudinal direction ", "upper", "lower", "front", "rear", The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on attached drawing institute The orientation or positional relationship shown, is merely for convenience of description of the present invention and simplification of the description, and is not the dress of indication or suggestion meaning It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to limit of the invention System.
As shown in Figure 1, the present invention provides a kind of generating device of coal gas, comprising:
Gasification installation 1 comprising:
Upper furnace body 110, is vertically arranged, and the inside of the upper furnace body 110 is equipped with upper combustion chamber, the upper furnace body 110 Side is equipped with feed inlet, and the feed inlet is communicated to the upper combustion chamber;
Lower furnace body 120 is set to the lower section of the upper furnace body 110 and perpendicular to the upper furnace body 110, the lower furnace body 120 inside is equipped with lower combustion chamber, and the lower combustion chamber is connected to the upper combustion chamber;
The upper furnace body 110 successively includes the first direct tube section 111, the changeover portion 112 of hollow round table shape and the from top to bottom Two direct tube sections 113, wherein the diameter of second direct tube section 113 is greater than the diameter of first direct tube section 111, described first is straight The cylinder lower furnace body 120 of section 111 connection;
It encloses equipped with a circle dust block board 114, multi-turn one end in the changeover portion 112 at first direct tube section 111 Dust block board 114 is successively set up in the changeover portion 112, and the dust block board 114 of each circle is the plate towards center Shape structure, each described dust block board 114 participate in enclosing the circle set in 30~60 ° of angles obliquely with by the dust block board 114 And it is not contacted between dust block board 114 described in every two.
In the generating device of coal gas of the invention, gasification and combustion reaction, the high temperature of generation occur in lower furnace body 120 Molten state lime-ash is downwardly into the collection apparatus for ash or other slag-draining devices of 120 bottom of lower furnace body, the height that gasification and burning generate Warm flue gas flows up into upper furnace body 110, meets with the fuel sprayed into from 110 side of upper furnace body, the combustion that upper furnace body 110 sprays into Material by absorb the high-temperature flue gas from lower furnace body 120, sensible heat occurs rapidly be pyrolyzed and devolatilization, and with the dioxy in flue gas Change carbon, residual oxygen and water vapour and second gasification reaction occurs, when flue gas reaches changeover portion 112, dust block board 114 is blocked Into in the high-temperature flue gas of upper furnace body 110 entrainment of fine ash solid impurity particle, high-temperature flue gas continues uplink, and fine ash solid impurity particle is through hindering Gear sinks in collection apparatus for ash or is adsorbed on the surface of dust block board 140, thus improve entire generating device service life and The stability of operation, while improving fuel utilization efficiency.When flue gas reaches the second direct tube section 113, the second direct tube section 113 Diameter is greater than the diameter of the first direct tube section 111, so that more suitable into being flowed in the flue gas of upper furnace body 110 during flowing up Freely, the sensible heat that gasification and burning generate preferably is absorbed, keeps fluid field in furnace more reasonable, improves efficiency of carbon con version.
In another technical solution, the gasification installation further include:
Collect apparatus for ash 130, be set to the lower section of the bottom of the lower furnace body 120 and connect with the inside of the lower furnace body 120 It is logical.
It further include remaining tank 2 in another technical solution, the upper end of one end and the upper furnace body 110 passes through inverted U Connecting tube 3 be connected, the lower part of the remaining tank 2 is equipped with gas outlet, and internal coat has heat-absorbing material, the remaining tank 2 Terrain clearance is higher than the terrain clearance of the lower furnace body 120;
The remaining tank 2 includes reducer and vertical tank, wherein the reducer is connected with the connecting tube, and the change The diameter of one end close to the connecting tube of diameter section is less than one end far from the connecting tube of the reducer.
Be provided with the connecting tube 3 of remaining tank 2 and inverted U in such technical solution, realize to the further cooling of flue gas and Buffering, the internal coat of remaining tank have heat-absorbing material, reach the effect that preferably cools, while passing through the connecting tube 3 of inverted U The exhaust gases passes formed with remaining tank 2 can preferably optimize gasification fluid field in furnace, keep the temperature of gasification inner flue gas of the stove uniform, and Further purification to flue gas can be arranged the devices such as inlet valve in gas outlet and be convenient in next step process to the benefit of flue gas out With.
In another technical solution, the heat-absorbing material includes the raw material of following parts by weight:
20~30 parts of carbon fiber, 10~20 parts of polyvinyl alcohol, 10~20 parts of ethylene glycol terephthalate, 2- acrylamide 5~10 parts of base -2- methyl propane sulfonic acid, 5~10 parts of glycerin monostearate, 5~8 parts of polyether-ether-ketone, 5~8 parts of high hydroscopic resin, 1~3 part of chlorinated paraffin, 3~5 parts of sodium sulfate crystal, 3~5 parts of nano carbon microsphere, 3~5 parts of nano aluminium oxide, is received 3~5 parts of borax 1~3 part of silicon carbide of rice, 1~3 part of ammonium sulfate, 1~3 part of urea, 1~2 part of magnesium chloride and 1~2 part of gelatin.
Phase-change material heat absorption and different microcrystalline texture nano particles are combined in such technical solution in heat-absorbing material Capillary phenomenon dissipates thermal property, enhances heat dissipation effect, while carbon fiber, polyether-ether-ketone and a variety of nano materials added also increase The wearability for stopping top tank structure is added, has extended its service life, reduce the thin ash and clinker zone of minute quantity that may be carried secretly as far as possible The adverse effect come.
In another technical solution, the collection apparatus for ash 130 includes:
Lime-ash pipe is connected to the inside of the lower furnace body, and the lime-ash pipe is equipped with valve;
Cooling bath, is upper layer and lower layer structure, and the lime-ash pipe passes through lower layer from the centre on upper layer and connects with lower layer It is logical, be fixedly connected between the upper layer and lower layer of the cooling bath, the upper layer of the cooling bath is hollow sealing structure, upper layer it is upper Bottom surface is equipped with window to be opened/closed and the inside on upper layer is equipped with cooling liquid, and the lower layer of the cooling bath is equipped with drawer type can be to one The cabinet of side opening and closing.
The flow that lime-ash falls is adjusted in valve in such technical solution on lime-ash pipe, and cooling bath is double-layer structure, is adopted Cooled down with water-cooling pattern to lime-ash, avoids caused by lime-ash overheat surprisingly, personnel being facilitated to operate, cooling bath upper layer can be opened and closed, side Just cooling liquid is replaced, lower layer is pullable drawer structure, convenient for clearing up and being replaced in closed drawer structure at any time Lime-ash.
In another technical solution, the upper furnace body 110 is equipped at least a pair of first burner, a pair of first burner pair Claim the two sides that the upper furnace body 110 is set, the two sides of the lower furnace body 120 are symmetrically arranged with a pair of second burner, each described The angle of 110 radial direction of first burner and the upper furnace body is 30~60 °;Each second burner and 120 axis of lower furnace body To angle be 45~60 °.
In another technical solution, the height of the upper furnace body 110 is the second direct tube section 112 of the upper furnace body 110 4~8 times of interior diameter, the interior diameter of the lower furnace body 120 is the 1.2~1.8 of the interior diameter of second direct tube section 112 Times, the length of the lower furnace body 120 is 2~5 times of the interior diameter of the lower furnace body 120.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited In specific details and legend shown and described herein.

Claims (7)

1. a kind of generating device of coal gas, comprising: gasification installation, the gasification installation include: upper furnace body, are vertically arranged, The inside of the upper furnace body is equipped with upper combustion chamber, and the side of the upper furnace body is equipped with feed inlet, and the feed inlet is communicated to described Upper combustion chamber;Lower furnace body, be set to the upper furnace body lower section and perpendicular to the upper furnace body, the inside of the lower furnace body is equipped with Lower combustion chamber, the lower combustion chamber are connected to the upper combustion chamber;The upper furnace body from top to bottom successively include the first direct tube section, The changeover portion of hollow round table shape and the second direct tube section, wherein the diameter of second direct tube section is greater than the straight of first direct tube section Diameter, first direct tube section are connected to the lower furnace body;It is characterized in that, in the changeover portion at first direct tube section One end enclose equipped with a circle dust block board, multi-turn dust block board successively sets up in the changeover portion, the gear ash of each circle Plate is the plate structure towards center, each described dust block board participates in enclosing the circle set in obliquely with by the dust block board 30~60 ° of angles and every two described in do not contact between dust block board.
2. the generating device of coal gas as described in claim 1, which is characterized in that the gasification installation further include:
Collect apparatus for ash, be set to the lower section of the bottom of the lower furnace body and be connected to the inside of the lower furnace body.
3. the generating device of coal gas as described in claim 1, which is characterized in that it further include remaining tank, one end and described The upper end of upper furnace body is connected by the connecting tube of inverted U, and the lower part of the remaining tank is equipped with gas outlet, and internal coat has heat absorption Material, the terrain clearance of the remaining tank are higher than the terrain clearance of the lower furnace body;
The remaining tank includes reducer and vertical tank, wherein the reducer is connected with the connecting tube, and the reducer Close to the connecting tube one end diameter be less than the reducer far from the connecting tube one end.
4. the generating device of coal gas as claimed in claim 3, which is characterized in that the heat-absorbing material includes following parts by weight Raw material:
20~30 parts of carbon fiber, 10~20 parts of polyvinyl alcohol, 10~20 parts of ethylene glycol terephthalate, 2- acrylamido- 5~10 parts of 2- methyl propane sulfonic acid, 5~10 parts of glycerin monostearate, 5~8 parts of polyether-ether-ketone, 5~8 parts of high hydroscopic resin, chlorine 1~3 part of fossil waxes, 3~5 parts of borax, 3~5 parts of sodium sulfate crystal, 3~5 parts of nano carbon microsphere, nano aluminium oxide 3~5 part, nanometer 1~3 part of silicon carbide, 1~3 part of ammonium sulfate, 1~3 part of urea, 1~2 part of magnesium chloride and 1~2 part of gelatin.
5. the generating device of coal gas as claimed in claim 2, which is characterized in that the collection apparatus for ash includes:
Lime-ash pipe is connected to the inside of the lower furnace body, and the lime-ash pipe is equipped with valve;
Cooling bath is upper layer and lower layer structure, and the lime-ash pipe passes through lower layer from the centre on upper layer and is connected to lower layer, institute It states and is fixedly connected between the upper layer of cooling bath and lower layer, the upper layer of the cooling bath is hollow sealing structure, the upper bottom surface on upper layer Inside equipped with window to be opened/closed and upper layer is equipped with cooling liquid, and the lower layer of the cooling bath is equipped with drawer type and can open to side The cabinet closed.
6. the generating device of coal gas as described in claim 1, which is characterized in that the upper furnace body is equipped at least a pair of the One burner, a pair of first burner are symmetricly set on the two sides of the upper furnace body, and the two sides of the lower furnace body are symmetrically arranged with a pair of the The angle of two burners, each first burner and the upper furnace body radial direction is 30~60 °;Each second burner with it is described The angle of lower furnace body axial direction is 45~60 °.
7. the generating device of coal gas as described in claim 1, which is characterized in that the height of the upper furnace body is the upper furnace 4~8 times of the interior diameter of second direct tube section of body, the interior diameter of the lower furnace body are the interior diameter of second direct tube section 1.2~1.8 times, the length of the lower furnace body is 2~5 times of the interior diameter of the lower furnace body.
CN201610920139.7A 2016-10-21 2016-10-21 The generating device of coal gas Active CN106336903B (en)

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Application Number Priority Date Filing Date Title
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CN106336903B true CN106336903B (en) 2019-04-16

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Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101261010B (en) * 2008-04-22 2011-06-08 青岛科技大学 Double distribution plate coal-base serial fluidized-bed chemical chain combustion apparatus
JP5827511B2 (en) * 2011-07-25 2015-12-02 新日鉄住金エンジニアリング株式会社 Coal gas production method and methane production method
AU2013359595B2 (en) * 2012-12-10 2016-02-18 Southern Company Second stage gasifier in staged gasification

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