CN107033965A - Gasification furnace with heat recovery system - Google Patents
Gasification furnace with heat recovery system Download PDFInfo
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- CN107033965A CN107033965A CN201610080042.XA CN201610080042A CN107033965A CN 107033965 A CN107033965 A CN 107033965A CN 201610080042 A CN201610080042 A CN 201610080042A CN 107033965 A CN107033965 A CN 107033965A
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- inner casing
- shell
- gasification furnace
- heat recovery
- recovery system
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/48—Apparatus; Plants
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/16—Integration of gasification processes with another plant or parts within the plant
- C10J2300/1603—Integration of gasification processes with another plant or parts within the plant with gas treatment
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
The invention discloses a kind of gasification furnace with heat recovery system, gasification furnace includes：The gentle slag passage of shell, inner casing, nozzle, inner casing is located in shell and inner casing is spaced apart with shell, inner casing is divided into inner casing and lower inner casing, vaporizer is limited in upper inner casing, heat recovery chamber and shock chamber are limited in lower inner casing, upper inner casing has the first cooling water inlet and the first coolant outlet, and lower inner casing has single second cooling water inlet and the second coolant outlet；Nozzle is located at the top of shell and upper inner casing and stretched into through housing entrance and upper inner casing import in vaporizer；Gas slag passage is located between the outlet at bottom of inner casing and lower inner casing top inlet.According to the gasification furnace with heat recovery system of the present invention, it is possible to achieve the recycling of heat, the energy is saved, and the comprehensive utilization ratio of the energy can be improved.
Description
Technical field
The present invention relates to a kind of gasification furnace, more particularly to a kind of gasification furnace with heat recovery system, particularly with regard to one kind
Can be using high-ash-fusion coal as raw material production raw gas, and the heat energy of high-temperature gas is reclaimed simultaneously, produce the gas of high steam
Change stove.
Background technology
Chilling process generally is used in the gasification furnace of correlation technique, however, 1200 DEG C~1700 DEG C high temperature come out from vaporizer
Synthesis gas cools to 200 DEG C~300 DEG C by chilled water and send follow-up workshop section, thus wastes a large amount of heat energy.Furthermore, the energy
High-efficiency comprehensive utilization is the important technical problem in world today energy and environment protection field, is also that Chinese national economy continues
One of key technology of development.
The content of the invention
It is contemplated that at least solving one of technical problem in correlation technique to a certain extent.Therefore, the invention reside in carry
Go out a kind of gasification furnace with heat recovery system, the gasification furnace can realize the recycling of heat, improve the comprehensive profit of the energy
With rate, the energy is saved.
Gasification furnace with heat recovery system according to embodiments of the present invention, including：Shell, inner casing, nozzle, gas slag passage,
Soot blower system and guide-localization component, the top of the shell is provided with housing entrance and bottom is provided with housing outlet；The inner casing
It is arranged in the shell and the inner casing is spaced apart with shell, the inner casing is divided into inner casing and lower inner casing, the upper inner casing
Inside limit in vaporizer, the top connection corresponding with the housing entrance of the upper inner casing, the lower inner casing and limit heat time
Receive room and shock chamber, lower inner casing import of the top provided with connection corresponding with the outlet of the upper inner shell bottom of the lower inner casing and
Bottom is provided with the lower inner shell outlet of connection corresponding with the housing outlet, and the upper inner casing has the first cooling water inlet and the
One coolant outlet, the lower inner casing has single second cooling water inlet and the second coolant outlet；The nozzle is set
The shell and it is described on inner casing top and stretched into through the housing entrance and upper inner casing import in the vaporizer；Institute
Gas slag passage is stated to be arranged between the outlet at bottom of the upper inner casing and the lower inner casing top inlet.
Gasification furnace with heat recovery system according to embodiments of the present invention, it is possible to achieve the recycling of heat, saves the energy,
And the comprehensive utilization ratio of the energy can be improved.Can also solve using coal as raw material gasification furnace raw material coal selection be limited to ash fusion point and
Coal-water fluid concentration, it is impossible to the problem of widely using cheap coal and the demand that high efficiency of energy is utilized can be met.
In addition, the gasification furnace according to the above embodiment of the present invention with heat recovery system can also have technology additional as follows special
Levy：
According to one embodiment of present invention, the shell includes upper cover, upper direct tube section, the cone connected successively from top to bottom
Section, lower direct tube section and low head, the radial dimension of the lower direct tube section are more than the radial dimension of the upper direct tube section.
Further, the low head of the shell is size is gradually reduced from top to bottom conical head, and conical head
Middle part is provided with the gentle mixed export of water, and conical head bottom is provided with slag-drip opening.
Alternatively, the first cooling water inlet and the first coolant outlet of the upper inner casing are respectively positioned on the upper cover of the shell,
The second cooling water inlet and the second coolant outlet of the lower inner casing are respectively positioned on the top of direct tube section under the shell.
According to some embodiments of the present invention, the upper inner casing is made up of membrane wall, and the lower inner casing is by the film with recuperation of heat screen
Formula wall is constituted.
Further, the upper inner casing includes：First upper collecting chamber, the first lower header and the cooling tubes of Duo Gen first；It is described lower interior
Shell includes：Second upper collecting chamber, the second lower header, many second cooling tubes and recuperation of heat screen.
Further, first upper collecting chamber, first lower header, second upper collecting chamber and second lower header
It is ring pipe, fin is carried between many first cooling tubes and between many second cooling tubes.
Alternatively, the recuperation of heat screen further comprises：Multiple rows of tubulation, polygon tubulation, circular tubulation, combined tubulation.
Alternatively, the lower end of the lower inner casing is extend into below the cooling water level in the shell.
Further, the lower end of the recuperation of heat screen is extend into below the cooling water level in the shell, the recuperation of heat screen
For shell and tube, extend axially downward and be connected with the second lower header of the lower inner casing, extend axially upward and the lower inner casing
Second upper collecting chamber is connected.
According to some embodiments of the present invention, the gas slag passage is that coil pipe is constituted, and the gas slag passage has single the
Three cooling water inlets and the 3rd coolant outlet.
Further, the gas slag passage is taper coil pipe.
According to some embodiments of the present invention, the gasification furnace also includes soot blower system, and the soot blower system is arranged on the gas
Between slag passage and the lower inner casing top inlet, the soot blower system includes porous annular pipe and multigroup air inlet pipe, described many
Hole ring pipe is located at the top of the lower inner casing, and multigroup air inlet pipe is located at the top of the lower direct tube section of the shell, it is described enter
Tracheae is connected along gas slag passage is descending with porous annular pipe.
According to some embodiments of the present invention, the gasification furnace also includes guide-localization component, and the guide-localization component is set
Between the shell and the inner casing, the guide-localization component is included in set between the upper inner casing and lower inner casing many
Group, for controlling upper inner casing and lower inner casing can only be in axially opposing movement.
Further, the guide-localization component includes locating rod and positioning guiding plate, and the locating rod is vertically slideably
It is connected with the positioning guiding plate, one in the locating rod and the positioning guiding plate installs on the housing and another
It is individual to be arranged on the inner casing.
According to some embodiments of the present invention, further comprise the gentle collector of water, the collector is arranged at the shell
In the cooling water of lower end.
Further, the collector includes：Collecting tank, down-comer and collect house steward.
Further, the collecting tank of the collector in top be above open annular, the collecting tank it is open with it is described
Cooling water in shell is flushed, and the upper end of the down-comer in the axial direction is connected with collecting tank and lower end is connected with collecting house steward,
And the down-comer is many.
Alternatively, the collecting tank is connected with the mixed export of the shell lower end.
Brief description of the drawings
Fig. 1 is the schematic diagram of the gasification furnace with heat recovery system of the embodiment of the present invention.
Fig. 2 be the embodiment of the present invention the gasification furnace with heat recovery system in recuperation of heat screen one embodiment schematic diagram.
Fig. 3 be the embodiment of the present invention the gasification furnace with heat recovery system in recuperation of heat screen another embodiment schematic diagram.
Fig. 4 be the embodiment of the present invention the gasification furnace with heat recovery system in recuperation of heat screen further embodiment schematic diagram.
Reference：
Gasification furnace 100, shell 1, mixed export 13, slag-drip opening 14, inner casing 2, upper inner casing 21, vaporizer 211, first
Cooling water inlet 212, the first coolant outlet 213, lower inner casing 22, heat recovery chamber 221, shock chamber 222, the second cooling
Water inlet 223, the second coolant outlet 224, recuperation of heat screen 225, nozzle 3, gas slag passage 4, soot blower system 5 is oriented to
Positioning component 6, collector 7.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein identical from beginning to end
Or similar label represents same or similar element or the element with same or like function.Retouched below with reference to accompanying drawing
The embodiment stated is exemplary, it is intended to for explaining the present invention, and be not considered as limiting the invention.
Present invention seek to address that the high temperature rough gas produced from gasification furnace is in cooling procedure the problem of energy recovery.
The gasification furnace 100 with heat recovery system according to embodiments of the present invention is described in detail with reference to Fig. 1 to Fig. 4.
Referring to figs. 1 to Fig. 4, the gasification furnace 100 with heat recovery system according to embodiments of the present invention, including：It is shell 1, interior
Shell 2, nozzle 3, gas slag passage 4, soot blower system 5 and guide-localization component 6.
Specifically, as shown in figure 1, the top of shell 1 is provided with housing entrance and bottom is provided with housing outlet.Inner casing 2 is set
Put in shell 1 and inner casing 2 is spaced apart with shell 1,2 points of inner casing is in upper inner casing 21 and lower inner casing 22, upper inner casing 21
Limit in vaporizer 211, the top connection corresponding with housing entrance of upper inner casing 21, lower inner casing 22 and limit heat recovery chamber
221 and shock chamber 222, lower inner casing import of the top provided with connection corresponding with the outlet of the upper bottom of inner casing 21 of lower inner casing 22 and
Bottom is provided with the lower inner shell outlet of connection corresponding with housing outlet, and upper inner casing 21 has the first cooling water inlet 212 and first
Coolant outlet 213, lower inner casing 22 has the single coolant outlet 224 of second cooling water inlet 223 and second.Nozzle
3 are arranged on the top of shell 1 and upper inner casing 21 and are stretched into through housing entrance and upper inner casing import in vaporizer 211.Gas slag
Passage 4 is arranged between the outlet at bottom of inner casing 21 and lower inner casing top inlet.Soot blower system 5 is arranged on gas slag passage 4
Between lower inner casing top inlet, soot blower system 5 includes porous annular pipe and multigroup air inlet pipe.Guide-localization component 6 is set
Between shell 1 and inner casing 2.
Gasification furnace 100 with heat recovery system according to embodiments of the present invention, including：Shell 1, the top and bottom of shell 1
It is respectively equipped with housing entrance and housing outlet；Inner casing 2, inner casing 2 is double inner casings, is arranged in shell 1 and between shell 1
Separate, double inner casings are divided into inner casing 21 and lower inner casing 22, upper inner casing 21 limits vaporizer 211, the top of upper inner casing 21
Import with shell 1 is corresponding, and the bottom of upper inner casing 21 is corresponding with the entrance of gas slag passage 4, the top of lower inner casing 22 and gas
Slag channel outlet correspondence, the bottom lower end of lower inner casing 22 is stretched into below the cooling water level in shell 1；Gas slag passage 4, gas
Slag passage 4 is arranged between inner casing 21 and lower inner casing 22, and the top of gas slag passage 4 is corresponding with the bottom of upper inner casing 21,
The bottom of gas slag passage 4 is corresponding with the top of lower inner casing 22；Guide-localization component 6, guide-localization component 6 is arranged on shell
Multigroup guide-localization component 6 is in axial direction set from the top down between 1 and inner casing 2；The gentle collector 7 of water, water is gentle to be received
Storage 7 is arranged in outer casing bottom cooling water, and the collection port of collecting tank is flushed with cooling water level, outlet and shell low head
The gentle mixed export 13 of water is connected.
Gasification furnace 100 with heat recovery system according to embodiments of the present invention, it is possible to achieve the recycling of heat, saves the energy,
And the comprehensive utilization ratio of the energy can be improved.Can also solve using coal as raw material gasification furnace raw material coal selection be limited to ash fusion point and
Coal-water fluid concentration, it is impossible to the problem of widely using cheap coal and the demand that high efficiency of energy is utilized can be met.
According to some specific embodiments of the present invention, reference picture 1, shell 1 is included from top to bottom (for example, shown in Fig. 1
Above-below direction) upper cover, upper direct tube section, cone section, lower direct tube section and the low head, the radial ruler of lower direct tube section that connect successively
The very little radial dimension more than upper direct tube section.
Further, with reference to Fig. 1, the low head of shell 1 is the conical head that size is gradually reduced from top to bottom, and taper is sealed
Centriciput is provided with the gentle mixed export 13 of water, and conical head bottom is provided with slag-drip opening 14.
Alternatively, reference picture 1, the first cooling water inlet 212 and the first coolant outlet 213 of upper inner casing 21 are respectively positioned on outside
At the upper cover of shell 1, the second cooling water inlet 223 and the second coolant outlet 224 of lower inner casing 22 are respectively positioned under shell directly
The top of cylinder section.
Specifically, as shown in figure 1, shell 1 includes：Upper cover, upper direct tube section, cone section, lower direct tube section, low head,
Wherein, above-mentioned about each section is connected to form shell 1.Thus, cover top portion import be provided with nozzle connector, shell 1 it is upper
End socket is provided with the first cooling water inlet 212 and the first coolant outlet 213 of inner casing 21, and the lower direct tube section of shell 1 is set
The second cooling water inlet 223 and the second coolant outlet 224 of lower inner casing 22 are equipped with, it is gentle that shell low head is provided with water
Mixed export 13, the bottom of shell 1 is provided with slag-drip opening 14.
According to some embodiments of the present invention, upper inner casing 21 is made up of membrane wall, and lower inner casing 22 is by with recuperation of heat screen 225
Membrane wall is constituted.
Gasification furnace 100 with heat recovery system according to embodiments of the present invention, recuperation of heat shock chamber is by individually band recuperation of heat screen
The lower inner casing 22 of 225 membrane wall structure is constituted, due to there is the protection of the membrane wall with cooling system, with lower 22 pairs of inner casing
The material for the shell 1 answered is not only restricted to import material, and the heat energy production high pressure that recuperation of heat screen 225 then reclaims high-temperature gas is steamed
Vapour, realizes comprehensive utilization of energy.
In addition, the gasification furnace 100 with heat recovery system according to embodiments of the present invention, vaporizer 211 is by single membrane wall structure
Into upper inner casing 21 constitute, due to have the membrane wall of cooling system protection, shell 1 operating temperature reduction, the material of shell 1
Matter is no longer limited by import material, it is possible to decrease cost, shortens manufacturing schedule, while the gasification temperature of vaporizer 211 can be improved,
Coal gas is produced using the coal of high ash melting point as raw material to be possibly realized.
Further, upper inner casing 21 includes：First upper collecting chamber, the first lower header and the cooling tubes of Duo Gen first；Lower inner casing 22
Including：Second upper collecting chamber, the second lower header, many second cooling tubes and recuperation of heat screen 225.
Further, the first upper collecting chamber, the first lower header, the second upper collecting chamber and the second lower header are ring pipe, many
Fin is carried between first cooling tube and between many second cooling tubes.
Wherein, the first cooling tube and the second cooling tube can increase heating surface (or radiating) from extended surface tube, improve heat transfer efficiency.
Upper inner casing 21 includes：First upper collecting chamber, the first lower header and finned first cooling tubes of Duo Gen, the first upper collecting chamber is
Annular is to limit the import of upper inner casing 21, and the first lower header is annular to limit the outlet of upper inner casing 21, every first
Cooling tube is abreast vertically extending, and two ends are connected with the first upper collecting chamber and the first lower header respectively.
Wherein, upper inner casing 21 is by the first upper collecting chamber of annular and the first lower header of annular and under the first upper collecting chamber and first
Many first cooling tubes with fin are constituted side by side between header, therefore upper inner casing 21 is simple in construction, easily manufactured.
Lower inner casing 22 includes：Second upper collecting chamber, the second lower header, many finned second heat exchanger tube and multi-screen recuperation of heat screens
225 are constituted, and the second upper collecting chamber is annular, limits the import of lower inner casing 22；Second lower header is lower interior to limit for annular
The outlet of shell 22.Every finned second heat exchanger tube extends and the second upper collecting chamber and the second lower header phase up and down in the axial direction
Even.Recuperation of heat screen 225, including：Upper collecting chamber, upper collecting chamber is straight pipe type；Lower header, lower header is straight pipe type；With many
Finned heat exchanger tube, every heat exchanger tube extends the upper lower header phase of two ends respectively with recuperation of heat screen 225 up and down in the axial direction
Even.Upper lower header of the upper lower header of recuperation of heat screen 225 respectively with lower inner casing 22 is connected, and constitutes lower inner casing 22 overall.Under
The compact conformation of inner casing 22, is easily installed.
Alternatively, reference picture 2 is to Fig. 4, and recuperation of heat screen 225 further comprises：Multiple rows of tubulation, polygon tubulation, circle row
Pipe, combined tubulation.
As shown in Figures 2 to 4, recuperation of heat screen 225 can be that straight panel is fan-shaped, and polygon is circular, combined.
Certainly, reclaim screen 225 and be not limited to above-mentioned structure type, specific constructive form can be set according to actual needs
Put.
Specifically, the structure type of recuperation of heat screen 225, can be selected according to the physical dimension of gasification furnace 100, pattern, but
Certain unimodality is not limited to, the combination of several patterns is also can select.
As shown in figure 1, the lower end of lower inner casing 22 is extend into below the cooling water level in shell 1.
Further, with reference to Fig. 1, the lower end of recuperation of heat screen 225 is extend into below the cooling water level in shell 1, recuperation of heat
Screen 225 is shell and tube, extends axially downward and is connected with the second lower header of lower inner casing 22, extends axially upward and lower inner casing
22 the second upper collecting chamber is connected.
According to some embodiments of the present invention, gas slag passage 4 is constituted for coil pipe, and gas slag passage 4 is cold with the single 3rd
But water inlet and the 3rd coolant outlet.Further, gas slag passage 4 is taper coil pipe.
Specifically, gas slag passage 4 is taper coil pipe, and gas slag passage 4 is the pass for connecting vaporizer 211 and recuperation of heat shock chamber
Key member.High-temperature gas and slag from vaporizer 211 are denuded by that can be caused during gas slag passage 4 to gas slag passage 4,
Because gas slag passage 4 is tapered, and there is multichannel cooling system, it is ensured that the normal operation of gasification furnace 100.Gas slag leads to
Road 4 it is simple in construction, manufacture and it is easy for installation.The cooling water system of gas slag passage 4 is not limited to several passages.It is specific cold
But water system number of channels can carry out accommodation according to actual conditions.
According to some embodiments of the present invention, as shown in figure 1, gasification furnace 100 also includes soot blower system 5, soot blower system 5
It is arranged between gas slag passage 4 and lower inner casing top inlet, soot blower system 5 includes porous annular pipe and multigroup air inlet pipe, many
Hole ring pipe is located at the top of lower inner casing, and multigroup air inlet pipe is located at the top of the lower direct tube section of shell 1, and air inlet pipe is along gas slag passage
4 descending are connected with porous annular pipe.
Specifically, the hole on the porous annular pipe of soot blower system 5 is set with lower inner casing 22 by certain angle, regularly to clear up heat
Reclaim the dust stratification on screen 225.
According to some specific embodiments of the present invention, reference picture 1, gasification furnace 100 also includes guide-localization component 6, and it is fixed to be oriented to
Hyte part 6 is arranged between shell 1 and inner casing 2, and guide-localization component 6 is included between inner casing 21 and lower inner casing 22
What is set is multigroup, for controlling upper inner casing 21 and lower inner casing 22 can only be in axially opposing movement.
According to some embodiments of the present invention, guide-localization component 6 includes locating rod and positioning guiding plate, and locating rod is vertically
Slideably it is connected with positioning guiding plate, one in locating rod and positioning guiding plate is arranged on shell 1 and locating rod and fixed
Another in the guide plate of position is arranged on inner casing 2.
Further, three groups of guide-localization components 6 are a set of, and every suit is circumferentially equal on the same section of gasification furnace 100
Cloth, in the axis direction of gasification furnace 100, sets cover more between shell 1 and inner casing 2.
Reference picture 1, according to some embodiments of the present invention, gasification furnace 100 further comprises the gentle collector 7 of water, collects
Device 7 is arranged in the cooling water of shell lower end.Further, collector 7 includes：Collecting tank, down-comer and collect house steward.
Further, as shown in figure 1, the collecting tank of collector 7 is in the opening that top is above open annular, collecting tank
Flushed with the cooling water in shell 1, the upper end of down-comer in the axial direction is connected with collecting tank and lower end is connected with collecting house steward,
And down-comer is many.
Alternatively, collecting tank is connected with the mixed export 13 of shell lower end.
The collecting tank of the gentle collector 7 of water is the open high-temperature synthesis gas produced from vaporizer 211 of annular, heat of being passed through under
After reclaiming, together enter with chilled water after collecting tank, blended Quench, blended by shell low head side water is gentle
Mouth 13 discharges gasification furnaces 100.The chilled water liquid level of shell lower end is controlled by collecting tank, facilitates the operational control of gasification furnace 100.
Gasification furnace 100 with heat recovery system according to embodiments of the present invention, integrates gasification, recuperation of heat, Quench.Structure
Simply, compact, reduced investment, the thermal efficiency are high.It can be widely used for all kinds of chemical plant installations by raw material of coal.
The invention discloses a kind of gasification furnace 100 with heat recovery system, including：Top and bottom be respectively equipped with housing entrance and
The shell 1 of housing outlet；The inner casings double up and down for being arranged in shell 1 and being separated with shell, upper inner casing 21 is made up of membrane wall,
Lower inner casing 22 is made up of the membrane wall with recuperation of heat screen 225；The furnace bottom that gasifies is provided with slag-drip opening 14, and bottom sidewall is provided with
Gas outlet (i.e. mixed export 13)；Gasification furnace 100 with heat recovery system according to embodiments of the present invention, can not only be used
High ash melting point coal as raw material produces synthesis gas, and can reclaim the heat production high steam of high-temperature gas.
The gasification furnace 100 with heat recovery system according to embodiments of the present invention is described in detail below with reference to Fig. 1 to Fig. 4.
With reference to Fig. 1 to Fig. 4, gasification furnace 100 according to embodiments of the present invention, including：Shell 1, lower inner casing 22, upper inner casing
21, gas slag passage 4, soot blower system 5, recuperation of heat screen 225, the gentle collector 7 of water, nozzle 3, guide-localization component 6.
Shell 1 is bearing shell, and the top and bottom of shell 1 are respectively equipped with housing entrance and housing outlet, inner casing 2 (including
Upper inner casing 21 and lower inner casing 22) it is arranged in shell 1 and is spaced apart with shell 1, so that in (including the upper inner casing of inner casing 2
21 and lower inner casing 22) space is limited between shell 1, inner casing 2 (including upper inner casing 21 and lower inner casing 22) is set
The mode put in shell 1 has no particular limits.It is exemplary and without limitation, inner casing 2 (including upper inner casing 21 and lower interior
Shell 22) it can hang on the support of shell 1.
Pressure generally generally 0.1~0.9MPa, upper inner casing in vaporizer 211, vaporizer 211 is defined in upper inner casing 21
21 top is provided with the import of upper inner casing 21 corresponding with the import of shell 1, the outlet of upper inner casing 21 and entering for gas slag passage 4
Mouth is connected.Upper inner casing 21 is made up of membrane wall, and membrane wall has the first cooling water inlet 212 and the first coolant outlet 213,
Thus, it is possible to be cooled down using cooling water to upper inner casing 21, so as to protect shell 1, and vaporizer 211 is improved
Gasification temperature, the temperature of such as vaporizer 211 can reach more than 1500 DEG C.Therefore, to use the coal conduct of high ash melting point
Gasified raw material production raw gas provides effective guarantee.
Nozzle 3 is arranged on the top of shell 1 and upper inner casing 21, is stretched into by the import of shell 1 and the import of upper inner casing 21
In vaporizer 211.In other words, what nozzle 3 was arranged on shell 1 and upper inner casing 21 enters intraoral, and shell 1 is stretched out in upper end, under
End is stretched into vaporizer 211.For example, nozzle 3 can spray into water coal to vaporizer 211 respectively by the inlet and outlet of itself
Slurry and oxidant.
The import of gas slag passage 4 is connected with the outlet of upper inner casing 21, the outlet of gas slag passage 4 and the import phase of lower inner casing 22
Even.Gas slag passage 4 is provided with single cooling system, to ensure that the high temperature rough gas and slag that are produced in vaporizer 211 are pacified
Enter lower inner casing 22 full by gas slag passage 4.
Heat recovery chamber 221 is defined in lower inner casing 22, the top inlet of lower inner casing 22 is relative with the outlet at bottom of gas slag passage 4
Should, lower inner casing 22 is made up of the membrane wall with recuperation of heat screen 225, and membrane wall has the second cooling water inlet 223 and second
Coolant outlet 224.In the chilled water of the lower end of lower inner casing 22 and lower end insertion shell 1 bottom of recuperation of heat screen 225, with
The gentle collector 7 of water is corresponding, thus tackles high-temperature gas and slag using lower inner casing 22, utilizes recuperation of heat screen 225
To reclaim high-temperature residual heat production high steam.
As shown in figure 1, can by single pipeline to shell 1 and inner casing 2 (including upper inner casing 21 and lower inner casing 22) it
Between supply inert gas in the space that limits, to prevent the high-temperature gas of the reaction generation of vaporizer 211 from entering space, thus,
, need to be (including upper interior in inner casing 2 to keep the pressure balance between space and inner casing 2 (including upper inner casing 21 and lower inner casing 22)
Shell 21 and lower inner casing 22) on open pressure compensation opening.
With reference to Fig. 1, soot blower system 5 is arranged on the outside exported under gas slag passage, is connected with the lower top of inner casing 22.Soot blowing system
Unite 5 inert gases supplied by independent pipeline to remove the floating ash on recuperation of heat screen 225, improve heat recovery efficiency.
Reference picture 1, the gentle collector 7 of water is arranged on the bottom of shell 1, and the gentle collected overhead groove of collector 7 of water is with
The bottom of inner casing 22 is connected, and the gentle collector 7 of water exports the mixed export 13 gentle with the lower side water of shell 1 and is connected,
The gentle bottom of collector 7 of water is that slag-drip opening 14 is corresponding with the outlet at bottom of shell 1, and the slag after Quench water cooling passes through
The slag-drip opening 14 of bottom of the gentle collector 7 of water from shell 1 is discharged.
As shown in figure 1, the high temperature rough gas and slag that are produced in vaporizer 211, enter heat recovery chamber 221 through gas slag passage 4,
High temperature rough gas carries out heat exchange action with lower inner casing 22 and recuperation of heat screen 225 during descending and produces high steam submitting,
Raw gas enters after the collecting tank at the top of the gentle collector of water is mixed with chilled water is discharged by slag-drip opening 14, and slag enters chilled water
Solid slag is formed afterwards to be discharged by mixed export 13.
Guide-localization component 6 is arranged between shell 1 and inner casing 2 (including upper inner casing 21 and lower inner casing 22), such as Fig. 1 institutes
Show, three guide-localization components 6 are a set of, and every suit guide-localization component 6 is on the same section of gasification furnace 100 along circle
Zhou Junbu, do not limit it is single be fixed on shell 1 or inner casing 2 (upper inner casing 21 or lower inner casing 22), in gasification furnace 100
Axis direction does not limit several sets of setting or many set guide-localization components 6, and specific physical dimension and thrust regarding gasification furnace 100 is big
Depending on small.Thus, guide-localization component 6 has structure type simple, manufactures easy for installation, is easy to site operation, installs
Debugging is flexible, the advantages of positioning and directing is accurate.
As shown in Figures 2 to 4, recuperation of heat screen 225 can be that straight panel is fan-shaped, and polygon is circular, combined.Certainly,
Reclaim screen 225 and be not limited to above-mentioned structure type, specific constructive form can be configured according to actual needs.
Specifically, the structure type of recuperation of heat screen 225 can be selected according to the physical dimension of gasification furnace 100, pattern, but not
Certain unimodality is defined in, the combination of several patterns is also can select.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment be it is exemplary,
It is not considered as limiting the invention, one of ordinary skill in the art within the scope of the invention can be to above-described embodiment
It is changed, changes, replacing and modification.
Claims (19)
1. a kind of gasification furnace with heat recovery system, it is characterised in that including：
Shell, the top of the shell is provided with housing entrance and bottom is provided with housing outlet；
Inner casing, the inner casing is arranged in the shell and the inner casing is spaced apart with shell, the inner casing be divided into inner casing with
Vaporizer is limited in lower inner casing, the upper inner casing, the top connection corresponding with the housing entrance of the upper inner casing is described
Heat recovery chamber and shock chamber are limited in lower inner casing, the top of the lower inner casing is provided with corresponding with the outlet of the upper inner shell bottom
The lower inner shell outlet of lower inner casing import and bottom provided with connection corresponding with the housing outlet of connection, the upper inner casing has
First cooling water inlet and the first coolant outlet, the lower inner casing have single second cooling water inlet and the second cooling water
Outlet；
Nozzle, the nozzle is arranged on the top of the shell and the upper inner casing and entered through the housing entrance and upper inner casing
Mouth is stretched into the vaporizer；
Gas slag passage, the gas slag passage is arranged between the outlet at bottom of the upper inner casing and the lower inner casing top inlet.
2. the gasification furnace according to claim 1 with heat recovery system, it is characterised in that the shell include on to
Under the upper cover, upper direct tube section, cone section, lower direct tube section and the low head that connect successively, the radial dimension of the lower direct tube section is big
In the radial dimension of the upper direct tube section.
3. the gasification furnace according to claim 2 with heat recovery system, it is characterised in that the lower envelope of the shell
Head is to be provided with the gentle mixed export of water, taper in the middle part of the conical head that size is gradually reduced from top to bottom, and conical head
End socket bottom is provided with slag-drip opening.
4. the gasification furnace according to claim 2 with heat recovery system, it is characterised in that the first of the upper inner casing is cold
But water inlet and the first coolant outlet are respectively positioned on the upper cover of the shell, the second cooling water inlet of the lower inner casing and
Two coolant outlets are respectively positioned on the top of direct tube section under the shell.
5. the gasification furnace with heat recovery system according to any one of claim 1-4, it is characterised in that described interior
Shell is made up of membrane wall, and the lower inner casing is made up of the membrane wall with recuperation of heat screen.
6. the gasification furnace according to claim 5 with heat recovery system, it is characterised in that the upper inner casing includes：The
One upper collecting chamber, the first lower header and the cooling tubes of Duo Gen first；
The lower inner casing includes：Second upper collecting chamber, the second lower header, many second cooling tubes and recuperation of heat screen.
7. the gasification furnace according to claim 6 with heat recovery system, it is characterised in that first upper collecting chamber, institute
It is ring pipe to state the first lower header, second upper collecting chamber and second lower header, many first cooling tubes it
Between and many second cooling tubes between carry fin.
8. the gasification furnace according to claim 6 with heat recovery system, it is characterised in that the recuperation of heat screen is further
Including：Multiple rows of tubulation, polygon tubulation, circular tubulation, combined tubulation.
9. the gasification furnace according to claim 6 with heat recovery system, it is characterised in that stretch the lower end of the lower inner casing
Enter to below the cooling water level in the shell.
10. the gasification furnace according to claim 9 with heat recovery system, it is characterised in that under the recuperation of heat screen
End is extend into below cooling water level in the shell, and the recuperation of heat screen is shell and tube, extend axially downward with it is described under
Second lower header of inner casing is connected, and extends axially upward and is connected with the second upper collecting chamber of the lower inner casing.
11. the gasification furnace with heat recovery system according to any one of claim 1-10, it is characterised in that the gas
Slag passage is constituted for coil pipe, and the gas slag passage has single 3rd cooling water inlet and the 3rd coolant outlet.
12. the gasification furnace according to claim 11 with heat recovery system, it is characterised in that the gas slag passage is cone
Shape coil pipe.
13. the gasification furnace with heat recovery system according to any one of claim 1-12, it is characterised in that the gas
Changing stove also includes soot blower system, and the soot blower system is arranged between the gas slag passage and the lower inner casing top inlet, institute
Stating soot blower system includes porous annular pipe and multigroup air inlet pipe, and the porous annular pipe is located at the top of the lower inner casing, described many
Group air inlet pipe is located at the top of the lower direct tube section of the shell, and the air inlet pipe is connected along gas slag passage is descending with porous annular pipe.
14. the gasification furnace with heat recovery system according to any one of claim 1-13, it is characterised in that the gas
Changing stove also includes guide-localization component, and the guide-localization component is arranged between the shell and the inner casing, described to be oriented to
Positioning component is included in set between the upper inner casing and lower inner casing multigroup, for controlling upper inner casing and lower inner casing can only be in axle
To relative movement.
15. the gasification furnace according to claim 14 with heat recovery system, it is characterised in that the guide-localization component
Including locating rod and positioning guiding plate, the locating rod is vertically slideably connected with the positioning guiding plate, the positioning
An installation in bar and the positioning guiding plate is on the housing and another is arranged on the inner casing.
16. the gasification furnace with heat recovery system according to any one of claim 1-15, it is characterised in that further
Including the collector that water is gentle, the collector is arranged in the cooling water of the shell lower end.
17. the gasification furnace according to claim 16 with heat recovery system, it is characterised in that the collector includes：
Collecting tank, down-comer and collect house steward.
18. the gasification furnace according to claim 17 with heat recovery system, it is characterised in that the collection of the collector
Groove is in that the open cooling water with the shell above the annular that top is opening, the collecting tank is flushed, the down-comer
Upper end in the axial direction is connected with collecting tank and lower end is connected with collecting house steward, and the down-comer is many.
19. the gasification furnace according to claim 17 with heat recovery system, it is characterised in that the collecting tank with it is described
The mixed export of shell lower end is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610080042.XA CN107033965A (en) | 2016-02-04 | 2016-02-04 | Gasification furnace with heat recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610080042.XA CN107033965A (en) | 2016-02-04 | 2016-02-04 | Gasification furnace with heat recovery system |
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Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610080042.XA Pending CN107033965A (en) | 2016-02-04 | 2016-02-04 | Gasification furnace with heat recovery system |
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| CN109696928A (en) * | 2018-12-24 | 2019-04-30 | 西北化工研究院有限公司 | A kind of reacting furnace heat recovery chamber tank level control system and method |
| CN109946108A (en) * | 2019-03-19 | 2019-06-28 | 首钢集团有限公司 | A kind of molten drop slag specimen collection device |
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Effective date of registration: 20200420 Address after: 100084 Beijing City, Haidian District Tsinghua Yuan Applicant after: TSINGHUA University Address before: 9 Haidian District District, Tsinghua University, Beijing 100084 (Mechanical Engineering Museum) Applicant before: RESEARCH CENTER OF CLEAN COAL TECH |
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Application publication date: 20170811 |