CN105419870A - Circular rotary-hearth vapourizing furnace - Google Patents
Circular rotary-hearth vapourizing furnace Download PDFInfo
- Publication number
- CN105419870A CN105419870A CN201511001222.6A CN201511001222A CN105419870A CN 105419870 A CN105419870 A CN 105419870A CN 201511001222 A CN201511001222 A CN 201511001222A CN 105419870 A CN105419870 A CN 105419870A
- Authority
- CN
- China
- Prior art keywords
- vapourizing furnace
- stove
- standing
- metal plate
- gas distribution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- C10J3/02—Fixed-bed gasification of lump fuel
- C10J3/20—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
- C10J3/02—Fixed-bed gasification of lump fuel
- C10J3/20—Apparatus; Plants
- C10J3/30—Fuel charging devices
-
- 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
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0903—Feed preparation
- C10J2300/0909—Drying
-
- 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
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0953—Gasifying agents
- C10J2300/0959—Oxygen
-
- 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
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0953—Gasifying agents
- C10J2300/0973—Water
- C10J2300/0976—Water as steam
-
- 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
- C10J2300/12—Heating the gasifier
- C10J2300/1269—Heating the gasifier by radiating device, e.g. radiant tubes
-
- 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
Landscapes
- 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 provides a circular rotary-hearth vapourizing furnace, which comprises a circular furnace chamber. The circular furnace chamber is formed by an inner wall, an outer wall, a top wall and a bottom wall, and is divided into a charging zone, a pre-vaporization zone, a quality-divided vaporization zone, a vaporization zone and a discharging zone which are adjacent in order; a material distribution furnace plate, which is positioned at the bottom of the circular furnace chamber in a rotatable mode; a transmission apparatus, which is arranged at the lower part of the material distribution furnace plate and is connected with the material distribution furnace plate for driving the material distribution furnace plate to rotate; several radiant tube heating devices, which are positioned in the pre-vaporization zone and the quality-divided vaporization zone as well as are distributed over the material distribution furnace plate; and several gasifying agent adding devices, which are arranged in the vaporization zone and are distributed over the material distribution furnace plate. The circular rotary-hearth vapourizing furnace has the advantages of high vaporization efficiency, low energy consumption, wide application scope and large processing amount of raw materials of a single furnace.
Description
Technical field
The invention belongs to synthetic gas production equipment, particularly, relate to annular and turn end vapourizing furnace.
Background technology
Gasification refers to that carbonaceous organic material is under certain temperature and pressure condition, utilize vaporized chemical (air or oxygen and water vapour) and carbon generation chemical reaction, producing the technology of crude synthesis gas, is an important way of the carbonaceous organic materials such as coal being carried out to chemical process.Existing coal gasification reaction stove mainly contains the three class type of furnaces, is respectively the air flow bed type of furnace, the fluidized-bed type of furnace, the moving-bed type of furnace.Wherein moving-bed gasification is with mild condition, gasification intensity and gasification efficiency is high is widely used.But, moving-bed gasification stove all adopts vertical structure, still there is the high energy consumption that causes of such as combustion zone temperature large, require that material has good physical strength and thermostability, gasified raw material is originated limited, the little separate unit vapourizing furnace treatment capacity that causes of vapourizing furnace internal diameter is little, and the defect such as the reaction times is wayward.Therefore, further improvement is need for the preparation of the vapourizing furnace of synthetic gas at present.
Summary of the invention
The present invention is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, one object of the present invention is to propose a kind ofly have that gasification efficiency is high, energy consumption is low, applied range and the large annular of separate unit stove feed throughput turn end vapourizing furnace.
According to an aspect of the present invention, the present invention proposes a kind of annular and turn end vapourizing furnace.Turn end vapourizing furnace according to the annular of the specific embodiment of the invention to comprise:
Ring-type furnace chamber, the space that described ring-type furnace chamber is made up of internal perisporium, periphery wall, roof, diapire, described ring-type furnace chamber is divided into intake zone adjacent successively, pre-vaporized district, sub-prime gasification zone, gasification zone and discharge zone, wherein, described intake zone has opening for feed, and described gasification zone or pre-vaporized district have syngas outlet, and described discharge zone has slag-drip opening;
Cloth stone or metal plate for standing a stove on as a precaution against fire, described cloth stone or metal plate for standing a stove on as a precaution against fire can be positioned at the bottom of described ring-type furnace chamber with horizontally rotating,
Transmission mechanism, described transmission mechanism to be arranged on below described cloth stone or metal plate for standing a stove on as a precaution against fire and to be connected with described cloth stone or metal plate for standing a stove on as a precaution against fire, to drive described cloth stone or metal plate for standing a stove on as a precaution against fire to horizontally rotate;
Multiple radiation tube heater, multiple described radiation tube heater is positioned at described pre-vaporized district and sub-prime gasification zone, and is distributed in the top of described cloth stone or metal plate for standing a stove on as a precaution against fire and spaced apart with described cloth stone or metal plate for standing a stove on as a precaution against fire; And
Multiple vaporized chemical adding apparatus, multiple described vaporized chemical adding apparatus is arranged in described gasification zone, and is distributed in the top of described cloth stone or metal plate for standing a stove on as a precaution against fire and spaced apart with described cloth stone or metal plate for standing a stove on as a precaution against fire.
The annular of the above embodiment of the present invention turns end vapourizing furnace, gasified raw material is laid in the top of cloth stone or metal plate for standing a stove on as a precaution against fire, by being blown into vaporized chemical in gasified raw material layer, makes the two generating gasification reaction produce synthetic gas.Therefore, turn end vapourizing furnace by adopting the annular of the above embodiment of the present invention and significantly improve vaporized chemical and gasified raw material contact area, speed of response is fast and abundant; Secondly, the gasification reaction in gasification zone can complete at 950-1200 DEG C of relatively mild temperature, and uniform temperature fields provides gasification temperature without the need for too high high temperature combustion zone, there is not high-temperature zone, reduces insulating equipment material grade, reduces energy consumption simultaneously; 3rd, material enters vapourizing furnace by opening for feed, the material entering vapourizing furnace is laid on the flitch that horizontally rotates by distribution device, gasified raw material along with cloth stone or metal plate for standing a stove on as a precaution against fire rotation successively through pre-vaporized district, sub-prime gasification zone and gasification zone, the remaining slag charge of gasification reaction gets rid of vapourizing furnace through drawing mechanism.Therefore, material does not have disturbance in gasification, not extruding, to physical strength and the thermostability not requirement of material, gasifiable material range of choice is extensive, as long as solid carbon organism, such as coal, biomass, rubbish, mud, greasy filth etc.In addition, material is laid on the cloth stone or metal plate for standing a stove on as a precaution against fire that horizontally rotates, adopts cloth plane branch, dispersed placement porous distribution device, increases the sectional area that effectively gasifies, namely increase the production of synthetic gas tolerance in the unit time.
In addition, annular according to the above embodiment of the present invention turns end vapourizing furnace and can also have following additional technical characteristic:
In some embodiments of the invention, described cloth stone or metal plate for standing a stove on as a precaution against fire is connected with described periphery wall with described internal perisporium respectively by seal assembly.
In some embodiments of the invention, described multiple vaporized chemical adding apparatus turns the even circumferential distribution of end vapourizing furnace along described annular, and each described vaporized chemical adding apparatus is connected with described periphery wall with described internal perisporium.
In some embodiments of the invention, described vaporized chemical adding apparatus comprises:
Gas main, the extension line of described gas main passes perpendicularly through the central shaft that described annular turns end vapourizing furnace, described gas main has steam entry and oxygen intake, described steam entry is communicated with the water vapour pipeline arranged through described roof, and described oxygen intake is communicated with the oxygen pipeline arranged through described periphery wall;
Heater, described heater is arranged on the periphery of described gas main;
Multiple gas distribution tube, described gas distribution tube is arranged on the below of described gas main vertically and is communicated with described gas main, and bottom and the described cloth stone or metal plate for standing a stove on as a precaution against fire of described gas distribution tube are spaced apart.
In some embodiments of the invention, the bottom end closure of described gas distribution tube, the tube wall bottom of described gas distribution tube is formed with the cloth bore region with multiple qi-emitting hole;
In some embodiments of the invention, the diameter of described qi-emitting hole is 0.5-5mm.
In some embodiments of the invention, the pitch of holes 1.5-15mm between two adjacent described qi-emitting holes.
In some embodiments of the invention, the height of described cloth bore region is 50-400mm.
In some embodiments of the invention, the bottom of described gas distribution tube and described cloth stone or metal plate for standing a stove on as a precaution against fire distance are not more than 20mm.
In some embodiments of the invention, along the periphery wall of described ring-type furnace chamber, the perisporium arc length between every two adjacent gasification agent adding apparatus is 3-15m.
In some embodiments of the invention, the internal diameter of described gas distribution tube is 10-50mm,
Optionally, the distance between the body central axle of two the adjacent gas distribution tubes on each described injection pipe is 60-200mm.
In some embodiments of the invention, the distance between the body central axle of two the adjacent gas distribution tubes on described gas main is identical,
For two adjacent described gas mains, vertical range between the central shaft that the body central axle of first gas distribution tube on one of them gas main and described annular turn end vapourizing furnace is different from the vertical range between central shaft that the body central axle of first gas distribution tube on another gas main and described annular turn end vapourizing furnace
Wherein, described first gas distribution tube is that the described annular of vicinity on gas main turns the gas distribution tube of the central shaft of end vapourizing furnace or the gas distribution tube for the central shaft that turns end vapourizing furnace away from described annular.
In some embodiments of the invention, described vaporized chemical adding apparatus comprises anchor further, and described anchor is set on multiple described gas distribution tube, and the two ends of described anchor are separately fixed on described internal perisporium and periphery wall.
Accompanying drawing explanation
Fig. 1 is that annular turns the front view of end vapourizing furnace according to an embodiment of the invention.
Fig. 2 is that annular turns the pre-vaporized district of end vapourizing furnace and the sectional view of sub-prime gasification zone according to an embodiment of the invention.
Fig. 3 is that annular turns the sectional view of the gasification zone of end vapourizing furnace according to an embodiment of the invention.
Fig. 4 is that annular turns the side-view of the gas distribution tube of end vapourizing furnace according to an embodiment of the invention.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
According to an aspect of the present invention, the present invention proposes a kind of annular and turn end vapourizing furnace.Below with reference to the accompanying drawings the annular describing the embodiment of the present invention in detail turns end vapourizing furnace.
First, the annular that Fig. 1 illustrates the embodiment of the present invention turns the front view of end vapourizing furnace, as shown in the figure, the annular of the embodiment of the present invention turns end vapourizing furnace and comprises: ring-type furnace chamber 10, cloth stone or metal plate for standing a stove on as a precaution against fire 20, transmission mechanism (not shown), multiple radiation tube heater 30 and multiple vaporized chemical adding apparatus 40.
Wherein, the space that is made up of internal perisporium 11, periphery wall 12, roof 13 and diapire (not shown) of ring-type furnace chamber 10; Ring-type furnace chamber 10 is divided into intake zone 110 adjacent successively, pre-vaporized district 120, sub-prime gasification zone 130, gasification zone 140 and discharge zone 150, wherein, intake zone 110 has opening for feed, gasification zone 140 or pre-vaporized district 120 have syngas outlet, and discharge zone 150 has slag-drip opening; Cloth stone or metal plate for standing a stove on as a precaution against fire 20 can be positioned at the bottom of ring-type furnace chamber 10 with horizontally rotating, and transmission mechanism to be arranged on below cloth stone or metal plate for standing a stove on as a precaution against fire 20 and to be connected with cloth stone or metal plate for standing a stove on as a precaution against fire 20, to drive cloth stone or metal plate for standing a stove on as a precaution against fire 20 to rotate; Multiple radiation tube heater 30 is positioned at pre-vaporized district 120 and sub-prime gasification zone 130, and be distributed in the top of cloth stone or metal plate for standing a stove on as a precaution against fire 20 and cloth stone or metal plate for standing a stove on as a precaution against fire 20 spaced apart; And multiple vaporized chemical adding apparatus 40 is arranged in gasification zone 140, and be distributed in the top of cloth stone or metal plate for standing a stove on as a precaution against fire 20 and cloth stone or metal plate for standing a stove on as a precaution against fire 20 spaced apart.
According to a particular embodiment of the invention, cloth stone or metal plate for standing a stove on as a precaution against fire 20 is connected with periphery wall 12 with internal perisporium 11 respectively by seal assembly.
According to concrete example of the present invention, seal assembly comprises inner circumferential closed component 50 and periphery closed component 60.Wherein, inner circumferential closed component 50 comprises Nei Feng road 51, inner circumferential flange 52 and ring closure groove 53, wherein, interior Feng Daoyu internal perisporium is connected, inner circumferential flange is connected with cloth stone or metal plate for standing a stove on as a precaution against fire, ring closure groove is arranged on the below of cloth stone or metal plate for standing a stove on as a precaution against fire 20 and is connected with internal perisporium 11, and Nei Feng road, inner circumferential flange extend in ring closure groove respectively.Periphery closed component 60 comprises covering road 61, periphery flange 62 and outer shroud enclosed slot 63, wherein, covering road is connected with periphery wall, periphery flange is connected with cloth stone or metal plate for standing a stove on as a precaution against fire, outer shroud enclosed slot is arranged on the below of cloth stone or metal plate for standing a stove on as a precaution against fire 20 and is connected with periphery wall 12, and covering road, periphery flange extend in outer shroud enclosed slot respectively.
Thus, drive inner circumferential flange 52 and periphery flange 62 to slide in ring closure groove 53 and outer shroud enclosed slot 63 respectively when cloth stone or metal plate for standing a stove on as a precaution against fire rotates, Nei Feng road 51 and covering road 61 maintain static at ring closure groove 53 and outer shroud enclosed slot 63 respectively.And then make cloth stone or metal plate for standing a stove on as a precaution against fire and internal perisporium 11, periphery wall 12 and roof 13 form enclosed space, contribute to holding temperature.
According to a particular embodiment of the invention, in ring closure groove 53 and outer shroud enclosed slot 63, bottom has closed packing area respectively, and inner circumferential flange 52 and periphery flange 62 are respectively in the corresponding closed packing area extended in ring closure groove 53 and outer shroud enclosed slot 63.According to a particular embodiment of the invention, closed packing area is liquid filler district or sand filler district.Thus, along with the rotation of cloth stone or metal plate for standing a stove on as a precaution against fire 20, connect the inner circumferential flange 52 on cloth stone or metal plate for standing a stove on as a precaution against fire 20 and periphery flange 62 slip in ring closure groove 53 and outer shroud enclosed slot 63 respectively, as shown in Figure 2.And, be further advanced by and add water or sandy soil in closed packing area, make in operation process, the ring-type furnace chamber above cloth stone or metal plate for standing a stove on as a precaution against fire 20 can be kept equally airtight, and then effectively can maintain the temperature in the ring-type furnace chamber on cloth stone or metal plate for standing a stove on as a precaution against fire, improve gasification efficiency, reduce energy consumption.
According to concrete example of the present invention, supporting roll 23 is arranged at cloth stone or metal plate for standing a stove on as a precaution against fire 20 bottom rotated, supporting roll 23 drives cloth stone or metal plate for standing a stove on as a precaution against fire 20 to carry out circumferential motion by drive mechanism, the cloth stone or metal plate for standing a stove on as a precaution against fire 20 of motion is connected with outer ring seal groove 63 by inner ring seal groove 53 with periphery wall 12 with static internal perisporium 11, and inner ring seal groove 53 and outer ring seal groove 63 are built with being less than the sand of 2mm as sealing medium.
According to a particular embodiment of the invention, gasification zone 140 can also be further divided into the first gasification zone and the second gasification zone.Point rank can carry out gasification reaction thus, the first gasification zone is used for elementary gasification, and the second gasification zone is used for supplementing gasification, and then gasification degree can be improved further, ensure that gasification reaction carries out completely, improve the utilization ratio of gasified raw material, to save energy consumption further.In addition, also can control the temperature in two gasification zones and gasification condition respectively, according to the degree that the gasification reaction of material carries out, control the coupling of the vaporized chemical in different gasification zone or the add-on etc. of vaporized chemical respectively, to increase unit surface and the synthesis gas yield in the unit time to greatest extent.
According to a particular embodiment of the invention, as shown in Figure 2, in pre-vaporized district 120 and sub-prime gasification zone 130, there is multiple radiation tube heater 30 respectively, radiation tube heater 30 and hang on the top of cloth stone or metal plate for standing a stove on as a precaution against fire 20 and spaced apart with cloth stone or metal plate for standing a stove on as a precaution against fire 20, multiple radiation tube heater 30 annularly turns the even circumferential distribution of end vapourizing furnace, and each radiation tube heater 30 is connected with periphery wall 12 with internal perisporium 11 respectively.Radiation tube heater 30 combustion gas provides heat for pre-vaporized district 120 and sub-prime gasification zone 130.According to a particular embodiment of the invention, radiation tube heater can be radiant tube burner.
According to a particular embodiment of the invention, as shown in Figure 3, be distributed in gasification zone 140 and have multiple vaporized chemical adding apparatus 40, multiple vaporized chemical adding apparatus 40 annularly turns the even circumferential distribution of end vapourizing furnace, and each vaporized chemical adding apparatus is connected with periphery wall 12 with internal perisporium 11 respectively.
According to a particular embodiment of the invention, by vaporized chemical adding apparatus 40 for providing vaporized chemical in gasification zone 140, particularly, as shown in Figure 3, vaporized chemical adding apparatus 40 specifically comprises: gas main 41, heater 42, multiple gas distribution tube 43.
Wherein, gas main 41 has steam entry and oxygen intake, steam entry is communicated with the water vapour pipeline 44 arranged through roof 13, and oxygen intake is communicated with the oxygen pipeline 45 arranged through periphery wall 12, and the extension line of gas main 41 passes perpendicularly through the central shaft that annular turns end vapourizing furnace; Heater 42 is arranged on the periphery of gas main 40; Gas distribution tube 43 is arranged on the below of gas main 41 vertically and is communicated with gas main 41, and bottom and the cloth stone or metal plate for standing a stove on as a precaution against fire 20 of gas distribution tube 43 are spaced apart.
According to a particular embodiment of the invention, first water vapour enters gas main 41 by water vapour pipeline 44, air or oxygen enter gas main 41 by oxygen pipeline 45, and mix in gas main 41 further, and heated by the heater 42 of gas main 41 periphery, entered in gasification zone 140 by multiple gas distribution tube 43 after heating.
According to a particular embodiment of the invention, as shown in Figure 4, the bottom of gas distribution tube 43 is closed, and the tube wall bottom of gas distribution tube is formed with the cloth bore region with multiple qi-emitting hole 431.By these qi-emitting holes, pass into vaporized chemical to the material on the cloth stone or metal plate for standing a stove on as a precaution against fire being positioned at gasification zone 140.According to concrete example of the present invention, the diameter of qi-emitting hole 431 can be 0.5-5mm.According to concrete example of the present invention, the pitch of holes between two adjacent qi-emitting holes 431 can 1.5-15mm.According to concrete example of the present invention, " H " in the height in gas distribution region and Fig. 4 can be 50-400mm.Above-mentioned gas distribution pipe can be adopted thus can to add appropriate vaporized chemical in gasification zone, make fully contacting and mixing of vaporized chemical and the material on cloth stone or metal plate for standing a stove on as a precaution against fire simultaneously, and then effectively improve gasification efficiency and synthetic gas productive rate.
According to a particular embodiment of the invention, by arranging multiple qi-emitting hole 431 in the tube wall bottom of gas distribution tube, in the lower end of gas distribution tube can be inserted on cloth stone or metal plate for standing a stove on as a precaution against fire thus material bed, thus the vaporized chemical of discharging in qi-emitting hole is fully contacted with gasified raw material, and then effectively provide gasification reaction speed.Contriver is by being optimized the specification of qi-emitting hole and size further, achieve control vaporized chemical being entered to amount, gas flow rate further, fully contacting and mixing of vaporized chemical and the material on cloth stone or metal plate for standing a stove on as a precaution against fire can be made thus further, and then effectively improve gasification efficiency and synthetic gas productive rate.
According to a particular embodiment of the invention, above-mentioned gasification reaction can complete gasification reaction, uniform temperature fields at 950-1200 DEG C of relatively mild temperature, gasification temperature is provided without the need for too high high temperature combustion zone, there is not high-temperature zone, and reduced insulating equipment material grade, reduce energy consumption simultaneously.
According to a particular embodiment of the invention, the bottom of gas distribution tube 43 and the distance of cloth stone or metal plate for standing a stove on as a precaution against fire 20 are not more than 20mm.The qi-emitting hole of the lower end of gas distribution tube can be made thus all to insert on cloth stone or metal plate for standing a stove on as a precaution against fire material bed in, and then effectively improve vaporized chemical utilization ratio, save energy consumption.
According to a particular embodiment of the invention, along the periphery wall of ring-type furnace chamber, the perisporium arc length between every two adjacent gasification agent adding apparatus is 3-15m.The suitable vaporized chemical adding apparatus of magnitude setting can be passed through thus, make to pass into appropriate vaporized chemical to the material in gasification zone, and then improve gasification efficiency, reduce the residual carbon content of residue after gasifying.
According to a particular embodiment of the invention, the internal diameter of gas distribution tube is 10-50mm.Thus, can control the intake of vaporized chemical and wind speed, contact with the effective of material to improve vaporized chemical further, improve gasification reaction efficiency.
According to a particular embodiment of the invention, the distance between the body central axle of two the adjacent gas distribution tubes on each described injection pipe is 60-200mm.Thus, can control the intake of vaporized chemical and wind speed, contact with the effective of material to improve vaporized chemical further, improve gasification reaction efficiency.
According to a particular embodiment of the invention, distance between the body central axle of two the adjacent gas distribution tubes on described gas main is identical, and for two adjacent described gas mains, vertical range between the central shaft that the body central axle of first gas distribution tube on one of them gas main and described annular turn end vapourizing furnace is different from the vertical range between central shaft that the body central axle of first gas distribution tube on another gas main and described annular turn end vapourizing furnace, wherein, described first gas distribution tube is that the described annular of vicinity on gas main turns the gas distribution tube of the central shaft of end vapourizing furnace or the gas distribution tube for the central shaft that turns end vapourizing furnace away from described annular.The clearance position along the gas distribution tube of gas distribution tube on a upper vaporized chemical adding apparatus on the next vaporized chemical adding apparatus of material sense of rotation can be ensured thus, vaporized chemical can be made thus to contact with material fully, improve gasification efficiency.
According to a particular embodiment of the invention, vaporized chemical adding apparatus comprises anchor 46 further, and anchor 46 is set on multiple gas distribution tube, and the two ends of anchor 46 are separately fixed on internal perisporium 11 and periphery wall 12.
According to a particular embodiment of the invention, the gasified raw material layer on cloth stone or metal plate for standing a stove on as a precaution against fire is inserted in gas distribution tube bottom, gas distribution tube is motionless, gasified raw material is with the rotary motion of cloth stone or metal plate for standing a stove on as a precaution against fire, vaporized chemical completes mixing and the preheating of vaporized chemical air or oxygen and water vapour in vaporized chemical adding apparatus, vaporized chemical after mixing preheating is discharged by gas distribution tube end qi-emitting hole, fully contacts with the gasified raw material of motion, completes gasification reaction and produces synthetic gas.
According to a particular embodiment of the invention, current moving-bed gasification stove all adopts vertical structure, and contriver finds that it exists following shortcoming:
1, combustion zone is in the bottom of vapourizing furnace, gasification zone is on the top of combustion zone, the hot gas that combustion zone burning produces is to rising, through gasification zone for gasification zone provides gasification chargeable heat, for ensureing the efficiency of carbon conversion of vapourizing furnace gasification zone raw material, must improve combustion zone temperature, combustion zone high temperature requires higher to the heat insulation material of body of heater, adds the energy consumption of gasification simultaneously.
2, vertical vapourizing furnace, gasified raw material needs to add from furnace roof portion, along with the eliminating of bottom gasification slag, gasification materiel moves down gradually through drying zone to gasification zone, completes gasification reaction, and the synthetic gas that gasification produces is from gasification zone drying district extraction vapourizing furnace, for ensureing that synthetic gas can get rid of vapourizing furnace smoothly, require that the material entering vapourizing furnace has good physical strength and thermostability, prevent from pulverizing at drying zone gasified raw material, hinder gasification synthesis gas by the extraction on vapourizing furnace bottom to top.Therefore gasified raw material source is limited.
3, effective gasification sectional area of vertical vapourizing furnace little (the vapourizing furnace internal diameter of gasification zone), namely the synthetic gas of unit time unit pneumatization generation is few, causes the treatment capacity of separate unit vapourizing furnace little.
4, vertical vapourizing furnace material is along with bottom gasification reaction and burning slag deslagging, and gasified raw material moves from top to bottom, controls the reaction times very difficult.
5, moving-bed gasification stove gasified raw material is limited, and major part can only gasify coal, and indivedual gasified bio-matter, gasified raw material kind is limited.
For this reason, the present inventor transforms vapourizing furnace in conjunction with the defect of vertical vapourizing furnace, the annular that research and development obtain the embodiment of the present invention turns end vapourizing furnace, this annular turns end vapourizing furnace not only can solve some problems existed in traditional vertical vapourizing furnace, simultaneously also for the development of vapourizing furnace provides new developing thought.
Turn end gasification stove according to the annular of the embodiment of the present invention and have following advantages, and following technical problem can be solved:
1, the annular of the embodiment of the present invention is adopted to turn end vapourizing furnace, vaporized chemical and gasified raw material contact area large, speed of response is fast and abundant, gasification reaction can be completed at 950-1200 DEG C of relatively mild temperature, uniform temperature fields, provides gasification temperature without the need for too high high temperature combustion zone, there is not high-temperature zone, reduce insulating equipment material grade, reduce energy consumption simultaneously.
2, the annular of the embodiment of the present invention is adopted to turn end vapourizing furnace, material enters vapourizing furnace by opening for feed, the material entering vapourizing furnace is laid on the cloth stone or metal plate for standing a stove on as a precaution against fire that horizontally rotates by distribution device, gasified raw material along with cloth stone or metal plate for standing a stove on as a precaution against fire rotation successively through pre-vaporized district, sub-prime gasification zone and gasification zone, the remaining slag charge of gasification reaction gets rid of vapourizing furnace through drawing mechanism.Material does not have disturbance in gasification, not extruding, and to physical strength and the thermostability not requirement of material, gasifiable material range of choice is extensive, such as, as long as solid carbon organism, coal, and biomass, rubbish, mud, greasy filth etc.
3, the annular of the embodiment of the present invention is adopted to turn end vapourizing furnace, material is laid on the cloth stone or metal plate for standing a stove on as a precaution against fire that horizontally rotates, adopt cloth plane branch, dispersed placement porous distribution device, increase the sectional area that effectively gasifies, namely increase the production of synthetic gas tolerance in the unit time.
Embodiment
Turn end vapourizing furnace for the annular of linear diameter 45m in rotating bed annular effectively cloth, annular turns end vapourizing furnace and is along the circumferential direction followed successively by intake zone, pre-vaporized district, sub-prime gasification zone, a district of gasifying, gasify 2nd district and dreg discharging area.Vapourizing furnace spatial accommodation by furnace roof, furnace sidewall and cloth stone or metal plate for standing a stove on as a precaution against fire around forming, in pre-vaporized district and interval, sub-prime gasification zone, 40 groups of radiant tube burners are evenly arranged along stove radial direction annular between cloth stone or metal plate for standing a stove on as a precaution against fire and furnace roof, wherein pre-vaporized district comprises 15 groups, sub-prime gasification zone comprises 25 groups, and radiant tube burner combustion heat value is about 1000kcal/Nm
3combustion gas provide heat for pre-vaporized district and sub-prime gasification zone.Supporting roll is arranged at the cloth stone or metal plate for standing a stove on as a precaution against fire bottom rotated, supporting roll is driven by transmission rig, and then drive cloth stone or metal plate for standing a stove on as a precaution against fire to carry out circumferential motion, the cloth stone or metal plate for standing a stove on as a precaution against fire of motion is connected with outer ring seal groove by inner ring seal groove with static furnace sidewall, and inner ring seal groove and outer ring seal groove are built with being less than the sand of 2mm as sealing medium.Gasification zone is divided into gasification one district and gasification 2nd district, 30 vaporized chemical adding apparatus are arranged along vapourizing furnace radial direction even circumferential in gasification zone, vaporized chemical adding apparatus is connected with oxygen or air line through vapourizing furnace outer wall, top is connected with the water vapour pipeline through furnace roof, each vaporized chemical adding apparatus bottom is evenly arranged gas distribution tube, gas distribution tube is along vaporized chemical adding apparatus axially arranged in parallel at vaporized chemical adding apparatus lower vertical cloth stone or metal plate for standing a stove on as a precaution against fire, each two gas distribution tube spacing are 100mm, gas distribution tube diameter is 50mm, each gas distribution tube lower part wall is evenly beaten the qi-emitting hole of 1.5mm, qi-emitting hole is along tube wall width between centers 10mm, the height " H " of the cloth bore region that gas distribution holes is formed is 150mm.Between vaporized chemical adding apparatus and the bed of material, have gas distribution tube fixing device, the distribution of gas distribution tube fixing device is connected and fixed with vapourizing furnace sidewall.Gas distribution tube end inserts gasified raw material layer near cloth cloth stone or metal plate for standing a stove on as a precaution against fire, gas distribution tube is motionless, gasification materiel is with the rotary motion of cloth stone or metal plate for standing a stove on as a precaution against fire, vaporized chemical completes mixing and the preheating of vaporized chemical air or oxygen and water vapour in vaporized chemical adding apparatus, vaporized chemical after mixing preheating is discharged by gas distribution tube end qi-emitting hole, fully contact with the gasified raw material of motion, carry out gasification reaction.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In describing the invention, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary indirect contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.
In the description of this specification sheets, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term need not for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this specification sheets or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (10)
1. annular turns an end vapourizing furnace, it is characterized in that, comprising:
Ring-type furnace chamber, the space that described ring-type furnace chamber is made up of internal perisporium, periphery wall, roof, diapire, described ring-type furnace chamber is divided into intake zone adjacent successively, pre-vaporized district, sub-prime gasification zone, gasification zone and discharge zone, wherein, described intake zone has opening for feed, and described gasification zone or pre-vaporized district have syngas outlet, and described discharge zone has slag-drip opening;
Cloth stone or metal plate for standing a stove on as a precaution against fire, described cloth stone or metal plate for standing a stove on as a precaution against fire can be positioned at the bottom of described ring-type furnace chamber with horizontally rotating,
Transmission mechanism, described transmission mechanism to be arranged on below described cloth stone or metal plate for standing a stove on as a precaution against fire and to be connected with described cloth stone or metal plate for standing a stove on as a precaution against fire, to drive described cloth stone or metal plate for standing a stove on as a precaution against fire to horizontally rotate;
Multiple radiation tube heater, multiple described radiation tube heater is arranged in described pre-vaporized district and sub-prime gasification zone, and is distributed in the top of described cloth stone or metal plate for standing a stove on as a precaution against fire and spaced apart with described cloth stone or metal plate for standing a stove on as a precaution against fire; And
Multiple vaporized chemical adding apparatus, multiple described vaporized chemical adding apparatus is arranged in described gasification zone, and is distributed in the top of described cloth stone or metal plate for standing a stove on as a precaution against fire and spaced apart with described cloth stone or metal plate for standing a stove on as a precaution against fire.
2. annular according to claim 1 turns end vapourizing furnace, it is characterized in that, described cloth stone or metal plate for standing a stove on as a precaution against fire is connected with described periphery wall with described internal perisporium respectively by seal assembly.
3. annular according to claim 1 turns end vapourizing furnace, it is characterized in that, described multiple vaporized chemical adding apparatus turns the even circumferential distribution of end vapourizing furnace along described annular, and each described vaporized chemical adding apparatus is connected with described periphery wall with described internal perisporium respectively.
4. annular according to claim 3 turns end vapourizing furnace, it is characterized in that, described vaporized chemical adding apparatus comprises:
Gas main, the extension line of described gas main passes perpendicularly through the central shaft that described annular turns end vapourizing furnace, described gas main has steam entry and oxygen intake, and described steam entry is communicated with described oxygen intake with the water vapour pipeline arranged through described roof and is communicated with the oxygen pipeline arranged through described periphery wall;
Heater, described heater is arranged on the periphery of described gas main;
Multiple gas distribution tube, described gas distribution tube is arranged on the below of described gas main vertically and is communicated with described gas main, and bottom and the described cloth stone or metal plate for standing a stove on as a precaution against fire of described gas distribution tube are spaced apart.
5. annular according to claim 4 turns end vapourizing furnace, it is characterized in that, the bottom end closure of described gas distribution tube, and the tube wall bottom of described gas distribution tube is formed with the cloth bore region with multiple qi-emitting hole;
Optionally, the diameter of described qi-emitting hole is 0.5-5mm,
Optionally, the pitch of holes 1.5-15mm between two adjacent described qi-emitting holes,
Optionally, the height of described cloth bore region is 50-400mm.
6. the annular according to claim 4 or 5 turns end vapourizing furnace, it is characterized in that, bottom and the described cloth stone or metal plate for standing a stove on as a precaution against fire distance of described gas distribution tube are not more than 20mm.
7. the annular according to any one of claim 4-6 turns end vapourizing furnace, it is characterized in that, along the periphery wall of described ring-type furnace chamber, the perisporium arc length between every two adjacent gasification agent adding apparatus is 3-15m.
8. annular according to claim 6 turns end vapourizing furnace, it is characterized in that, the internal diameter of described gas distribution tube is 10-50mm,
Optionally, the distance between the body central axle of two the adjacent gas distribution tubes on each described injection pipe is 60-200mm.
9. annular according to claim 4 turns end vapourizing furnace, it is characterized in that, the distance between the body central axle of two the adjacent gas distribution tubes on described gas main is identical,
For two adjacent described gas mains, vertical range between the central shaft that the body central axle of first gas distribution tube on one of them gas main and described annular turn end vapourizing furnace is different from the vertical range between central shaft that the body central axle of first gas distribution tube on another gas main and described annular turn end vapourizing furnace
Wherein, described first gas distribution tube is that the described annular of vicinity on gas main turns the gas distribution tube of the central shaft of end vapourizing furnace or the gas distribution tube for the central shaft that turns end vapourizing furnace away from described annular.
10. annular according to claim 4 turns end vapourizing furnace, it is characterized in that, described vaporized chemical adding apparatus comprises anchor further, and described anchor is set on described multiple gas distribution tube, and the two ends of described anchor are separately fixed on described internal perisporium and periphery wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511001222.6A CN105419870A (en) | 2015-12-28 | 2015-12-28 | Circular rotary-hearth vapourizing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511001222.6A CN105419870A (en) | 2015-12-28 | 2015-12-28 | Circular rotary-hearth vapourizing furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105419870A true CN105419870A (en) | 2016-03-23 |
Family
ID=55498420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511001222.6A Pending CN105419870A (en) | 2015-12-28 | 2015-12-28 | Circular rotary-hearth vapourizing furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105419870A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201078713Y (en) * | 2007-09-03 | 2008-06-25 | 曲宗国 | Stalk gasification furnace |
| CN104789234A (en) * | 2015-04-09 | 2015-07-22 | 唐山市三兴清洁能源开发有限公司 | Lignite dry distillation and gasification furnace provided with annular fire grate |
| CN205328955U (en) * | 2015-12-28 | 2016-06-22 | 北京神雾环境能源科技集团股份有限公司 | End gasifier is changeed to annular |
-
2015
- 2015-12-28 CN CN201511001222.6A patent/CN105419870A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201078713Y (en) * | 2007-09-03 | 2008-06-25 | 曲宗国 | Stalk gasification furnace |
| CN104789234A (en) * | 2015-04-09 | 2015-07-22 | 唐山市三兴清洁能源开发有限公司 | Lignite dry distillation and gasification furnace provided with annular fire grate |
| CN205328955U (en) * | 2015-12-28 | 2016-06-22 | 北京神雾环境能源科技集团股份有限公司 | End gasifier is changeed to annular |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6837124B2 (en) | Material heating device | |
| CN205774326U (en) | A kind of new type of continuous rotary carbonization retort | |
| CN105368497B (en) | Biological material microwave radiation technology pyrolysis gasifying device and its application method | |
| CN201530810U (en) | Rotary furnace used in method for continuously preparing biomass pyrolysis gasification gas in internal heat mode | |
| KR101528411B1 (en) | External Heating Type Coal Material Decomposition Apparatus With Multiple Tubes | |
| CN105036127B (en) | Coal pyrolysis and activated carbon production integrated device | |
| CN205328955U (en) | End gasifier is changeed to annular | |
| CN102796568B (en) | Device and technology for producing blau-gas and carbon monoxide | |
| CN103756729B (en) | Pulse downdraft type high-temperature fixed bed gasification furnace | |
| CN106190206A (en) | Solid heat carrier pyrolysis device | |
| CN205328957U (en) | Gasification system | |
| CN102249225A (en) | System using biomass for heat supply for producing activated carbon by fly ash | |
| CN103194273B (en) | Two-stage coal gas generating device | |
| CN102192638B (en) | Method for realizing low-temperature drying of brown coal | |
| CN103657529B (en) | Rotary heater | |
| CN105441137A (en) | Gasification reactor | |
| CN104745212A (en) | Radiation pyrolytic tube and pulverized coal pyrolytic rotary furnace | |
| CN105419870A (en) | Circular rotary-hearth vapourizing furnace | |
| CN204097405U (en) | A kind of rotating bed pyrolysis oven for improving material destructive distillation ability | |
| CN105733686A (en) | Ring-type impact gasifier | |
| CN201053004Y (en) | Internal heat type rolling bed carbocoal activation multipurpose furnace | |
| CN105567326B (en) | Gasification system and gasification process | |
| CN203429135U (en) | Low-temperature retort of oil shale | |
| CN202415493U (en) | Double zone gas producer | |
| CN206494906U (en) | It is a kind of to prevent the atmospheric fixed bed slag tap gasification reacting furnace of dross |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 102200 Beijing city Changping District Machi Town cow Road No. 18 Applicant after: Shenwu science and technology group Limited by Share Ltd Address before: 102200 Beijing city Changping District Machi Town cow Road No. 18 Applicant before: Beijing Shenwu Environment Energy Technology Group Co., Ltd. |
|
| CB02 | Change of applicant information | ||
| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20190507 |
|
| AD01 | Patent right deemed abandoned |