CN110760348B - Biomass gas purification system - Google Patents
Biomass gas purification system Download PDFInfo
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- CN110760348B CN110760348B CN201911068903.2A CN201911068903A CN110760348B CN 110760348 B CN110760348 B CN 110760348B CN 201911068903 A CN201911068903 A CN 201911068903A CN 110760348 B CN110760348 B CN 110760348B
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/04—Purifying combustible gases containing carbon monoxide by cooling to condense non-gaseous materials
- C10K1/046—Reducing the tar content
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/002—Removal of contaminants
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/02—Dust removal
- C10K1/026—Dust removal by centrifugal forces
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/20—Purifying combustible gases containing carbon monoxide by treating with solids; Regenerating spent purifying masses
Abstract
The invention discloses a biomass gas purification system which comprises an adsorption tower, a liquid cooling separation tank, a primary cyclone separator, a high-grade liquid cooling tank, a secondary cyclone separator, a recovery storage tank, a gas pipeline assembly and a cooling liquid pipeline assembly, wherein the adsorption tower, the liquid cooling separation tank, the primary cyclone separator, the high-grade liquid cooling tank and the secondary cyclone separator are sequentially connected in series through the gas pipeline assembly, the secondary cyclone separator, the high-grade liquid cooling tank, the primary cyclone separator and the liquid cooling separation tank are sequentially connected in series through the cooling liquid pipeline assembly, the adsorption tower, the liquid cooling separation tank, the primary cyclone separator and the secondary cyclone separator are all connected to the recovery storage tank through discharge pipelines, and a material conveying component is arranged on the adsorption tower. The invention has the advantages of ingenious design, compact structure, simple process, higher purification efficiency of impurities such as tar dust and the like, stable quality, extremely low environmental pollution and capability of effectively improving the combustion quality of gas.
Description
Technical Field
The invention relates to the technical field of fuel gas purification, in particular to a biomass fuel gas purification system.
Background
At present, the use of gasifying biomass raw materials to generate combustible gas in China is roughly divided into: the small-sized gasification furnace is used for household use and supplies gas in a large-sized centralized gasification range. The small-sized gasification furnace developed in China has been used for more than ten years at home, the small-sized gasification furnace adopts a gasification chamber which is directly connected with a stove through a pipeline and adopts a forced ventilation mode, and the gasification chamber generates combustible gas under the anaerobic condition, so that the small-sized gasification furnace can be used by one-time feeding and continuous combustion.
Traditional biomass such as crop straws and the like is usually treated by burning, and the air environment and fire safety of rural areas and surrounding cities are seriously affected. Biomass gasification is a process of burning biomass fuels such as straws, rice straws, firewood and the like in an oxygen-deficient environment to generate gases such as carbon monoxide, methane and the like to replace the traditional natural gas. The combustible gas can be used for cooking, water heating, heating and the like of rural residents. At present, the energy is in shortage, the prices of coal and liquefied gas rise all the way, the straw gasification furnace can generate combustible gas only by a small amount of plant straws, the firepower is equivalent to that of the liquefied gas, even the combustion temperature exceeds that of the liquefied gas, the biomass utilization rate is high, the problems of difficult biomass treatment in rural areas, difficult natural gas popularization and the like can be solved in a targeted manner, and the straw gasification furnace has the advantages of natural gas energy conservation, high byproduct income, no atmospheric pollution and the like. However, the biomass gasification purification technology has many disadvantages, such as high tar content in the gasified fuel gas, too high temperature of the generated fuel gas, and the tar contained in the gasified fuel gas is condensed in the pipeline after the temperature of the fuel gas is reduced in the transmission pipeline, so that the pipeline can be corroded and blocked, and the pipeline is damaged. The water content in the combustible gas is too high, so that the fuel gas is not easy to ignite, and the combustion effect of the fuel gas is influenced. Dust in the combustible gas not only blocks the gas stove head but also floats into the air after combustion, and finally harms the health of human beings.
Disclosure of Invention
The invention aims to: provides a biomass gas purification system to solve the defects.
In order to achieve the above purpose, the invention provides the following technical scheme:
the utility model provides a living beings gas clean system, includes adsorption tower, liquid cooling knockout drum, one-level cyclone, senior liquid cold pot, second grade cyclone, retrieves storage tank, gas pipeline assembly, coolant liquid pipeline assembly, adsorption tower, liquid cooling knockout drum, one-level cyclone, senior liquid cold pot, second grade cyclone establish ties in proper order through the gas pipeline assembly, second grade cyclone, senior liquid cold pot, one-level cyclone, liquid cooling knockout drum establish ties in proper order through coolant liquid pipeline assembly, adsorption tower, liquid cooling knockout drum, one-level cyclone, second grade cyclone all connect on retrieving the storage tank through ejection of compact pipeline, be provided with defeated material subassembly on the adsorption tower.
Preferably, the gas pipeline assembly comprises a pyrolysis gas outlet main pipe, a preliminary adsorption gas outlet pipe, a liquid cooling separation gas outlet pipe, a preliminary cyclone separation gas outlet pipe, a liquid cooling gas outlet pipe and a terminal gas outlet pipe, wherein one end of the pyrolysis gas outlet main pipe is connected to the gas outlet pipe of the biomass gas pyrolysis furnace, and the other end of the pyrolysis gas outlet main pipe is connected to the bottom end of the adsorption tower; one end of the preliminary adsorption air outlet pipe is connected to the top end of the adsorption tower, and the other end of the preliminary adsorption air outlet pipe is connected to the liquid-cooled separation tank; one end of the liquid-cooling separation air outlet pipe is connected to the liquid-cooling separation tank, and the other end of the liquid-cooling separation air outlet pipe is connected to an air inlet at the top end of the primary cyclone separator; one end of the primary cyclone separation air outlet pipe is connected with an air outlet at the top end of the primary cyclone separator, and the other end of the primary cyclone separation air outlet pipe is connected with the bottom end of the high-grade liquid cooling tank; one end of the liquid cooling air outlet pipe is connected to the top end of the high-grade liquid cooling tank, and the other end of the liquid cooling air outlet pipe is connected to an air inlet at the top end of the secondary cyclone separator; one end of the terminal air outlet pipe is connected to an air outlet at the top end of the secondary cyclone separator; the cooling liquid pipeline assembly comprises a cooling liquid input header pipe, a secondary cyclone separation cooling liquid discharge pipe, a liquid cooling tank cooling liquid discharge pipe, a primary cyclone separation cooling liquid discharge pipe and a cooling liquid terminal discharge pipe, wherein the outer wall shells of the primary cyclone separator and the secondary cyclone separator are respectively provided with a double-layer shell, one end of the cooling liquid input header pipe is connected to the cooling liquid input pump, and the other end of the cooling liquid input header pipe is connected to the bottom in the interlayer of the secondary cyclone separator shell; one end of the secondary cyclone separation cooling liquid discharge pipe is connected to the top end in the interlayer of the secondary cyclone separator shell, and the other end of the secondary cyclone separation cooling liquid discharge pipe is connected into the high-grade liquid cooling tank; one end of the liquid cooling tank cooling liquid discharge pipe is connected into the high-grade liquid cooling tank, and the other end of the liquid cooling tank cooling liquid discharge pipe is connected to the bottom in the interlayer of the shell of the primary cyclone separator; one end of the primary cyclone separation cooling liquid discharge pipe is connected to the top end in the interlayer of the primary cyclone separator shell, and the other end of the primary cyclone separation cooling liquid discharge pipe is connected into the liquid cooling separation tank; and one end of the cooling liquid terminal discharge pipe is connected into the liquid cooling separation tank, and the other end of the cooling liquid terminal discharge pipe is connected to the cooling liquid recovery storage tank.
Preferably, the interior of the adsorption tower is divided into a biomass material storage area and an adsorption tower gas storage area by a breathable partition plate, the breathable partition plate is provided with an adsorption tower material output auger, the adsorption tower body at the front end of the adsorption tower material output auger is provided with an adsorption tower material output pipe, and the other end of the adsorption tower material output pipe is connected to the recovery storage tank; the other end of the pyrolysis gas outlet main pipe is connected to the bottom end of the adsorption tower and communicated with a gas storage area of the adsorption tower; preliminary adsorption outlet duct one end is connected at adsorption column top end and is communicate biomass material and deposit the district, be provided with the fan on the preliminary adsorption outlet duct.
Preferably, defeated material subassembly is including defeated material casing body, defeated material auger, feeding hopper, the defeated material discharge pipe of auger, defeated material auger motor, defeated material auger is installed in defeated material casing body and is defeated the material through defeated material auger motor control, the feeding hopper sets up in defeated material casing body upper end, the defeated material discharge pipe setting of auger is on the defeated material casing body of defeated material auger bottom front end, the defeated material discharge pipe one end of auger communicates to in defeated material casing body, and the other end is connected at adsorption tower top end and is communicate living beings material storage area.
Preferably, two first vertical pipes, two second vertical pipes and two horizontal settling pipes which are parallel to each other are arranged in the liquid cooling separation tank, the bottom ends of the first vertical pipes and the second vertical pipes are communicated with the horizontal settling pipes, the upper ends of the first vertical pipes and the second vertical pipes and one ends of the horizontal settling pipes penetrate through the outer wall of the liquid cooling separation tank and are provided with precipitation removing devices, the other end of the horizontal settling pipes is provided with vertical liquid cooling separation and precipitation discharge pipes, the upper ends of the liquid cooling separation and precipitation discharge pipes are connected to the other ends of the horizontal settling pipes, and the lower ends of the liquid cooling separation and precipitation discharge pipes are connected to the recovery storage tank; the other end of the preliminary adsorption air outlet pipe is connected to the liquid-cooling separation tank and communicated with the upper end of the outer wall of the second vertical pipe, and one end of the liquid-cooling separation air outlet pipe is connected to the liquid-cooling separation tank and communicated with the upper end of the outer wall of the first vertical pipe; the one-level cyclone separation coolant liquid discharge pipe other end is connected to liquid cooling separator outer wall downside and runs through to inside the liquid cooling separator, coolant liquid terminal discharge pipe lower extreme is connected to liquid cooling separator top and runs through to inside the liquid cooling separator, coolant liquid terminal discharge pipe upper end is connected at coolant liquid recovery storage tank.
Preferably, the sediment removal device comprises a horn-shaped conical pipe, a tail end straight pipe, a sediment removal piston push plate, a conical platform-shaped sealing element, a hydraulic push rod and a hydraulic motor, wherein a large-opening end of the horn-shaped conical pipe is fixed at the tail end of the first vertical pipe, the second vertical pipe or the horizontal sedimentation pipe, one end of the tail end straight pipe is connected to a small-opening end of the horn-shaped conical pipe, the sediment removal piston push plate is installed in the first vertical pipe, the second vertical pipe or the horizontal sedimentation pipe fixed to the horn-shaped conical pipe, and a large-head end of the conical platform-shaped sealing element is fixed on the sediment removal piston push plate; the hydraulic push rod is arranged in the horn-shaped conical pipe and the tail end straight pipe, one end of the hydraulic push rod is fixed at the small end of the conical table-shaped sealing element, the other end of the hydraulic push rod is fixed at the other end of the tail end straight pipe, and the hydraulic push rod is controlled to stretch and retract through a hydraulic motor; and an annular sealing ring is arranged on the outer side of the precipitation removing piston push plate.
Preferably, the lower end of the primary cyclone separator is provided with a primary cyclone impurity discharge pipe, the upper end of the primary cyclone impurity discharge pipe is connected to a sewage outlet at the lower end of the primary cyclone separator, and the lower end of the primary cyclone impurity discharge pipe is connected to the recovery storage tank.
Preferably, the interior of the high-grade liquid cooling tank is divided into an upper end gas storage area, a middle liquid cooling area and a lower end gas storage area by two closed partition plates, a plurality of gas liquid cooling coils are arranged in the middle liquid cooling area, and two ends of each gas liquid cooling coil penetrate through the two closed partition plates and are respectively communicated with the upper end gas storage area and the lower end gas storage area; the other end of the primary cyclone separation gas outlet pipe is connected to the bottom end of the high-grade liquid cooling tank and penetrates through a gas storage area at the lower end; one end of the liquid cooling air outlet pipe is connected to the top end of the high-grade liquid cooling tank and penetrates through the upper end gas storage area; the other end of the secondary cyclone separation cooling liquid discharge pipe is arranged on the lower side of the outer wall of the high-grade liquid cooling tank corresponding to the intermediate liquid cooling area and communicated with the intermediate liquid cooling area; one end of the liquid cooling tank cooling liquid discharge pipe is arranged on the upper side of the outer wall of the high-grade liquid cooling tank corresponding to the middle liquid cooling area and communicated with the middle liquid cooling area.
Preferably, the lower end of the secondary cyclone separator is provided with a secondary cyclone impurity discharge pipe, the upper end of the secondary cyclone impurity discharge pipe is connected to a lower end sewage outlet of the secondary cyclone separator, and the lower end of the secondary cyclone impurity discharge pipe is connected to the recovery storage tank.
Preferably, a pyrolysis material input pipe is arranged below the recovery storage tank, the upper end of the pyrolysis material input pipe is connected to the lower end face of the recovery storage tank, and the lower end of the pyrolysis material input pipe is communicated to the biomass gas pyrolysis furnace.
The invention has the beneficial effects that:
according to the device, through the adsorption tower, impurities such as tar dust and the like in the biomass fuel gas discharged from the pyrolysis furnace are preliminarily adsorbed by the crushed biomass raw material, and meanwhile, the biomass raw material can be preheated, so that the energy consumption is reduced; the liquid cooling separation tank is used for carrying out primary cooling, so that partial separation of impurities in the biomass gas is realized, and the separation efficiency of the primary cyclone separator in the next step is improved; through the high-grade liquid cooling tank, the high-efficiency cooling of the biomass gas is realized, the temperature is greatly reduced, and the separation efficiency of the secondary cyclone separator is further improved; the secondary cyclone separator, the high-grade liquid cooling tank, the primary cyclone separator and the liquid cooling separation tank are sequentially connected in series through a cooling liquid pipeline assembly, the flow route of cooling liquid is just opposite to the biomass gas purification route in the device, efficient cooling in the substance gas purification process is realized, and the purification efficiency is improved; the biomass raw materials preliminarily adsorbed and preheated in the adsorption tower are stored by utilizing the recovery storage tank, and impurities such as tar dust and the like separated in the liquid cooling separation tank, the primary cyclone separator and the secondary cyclone separator are recovered, stored and reused. The invention has the advantages of ingenious design, compact structure, simple process, higher purification efficiency of impurities such as tar dust and the like, stable quality, extremely low environmental pollution and capability of effectively improving the combustion quality of gas.
Drawings
FIG. 1: the invention has a schematic structure;
FIG. 2: the liquid cooling separation tank has a schematic structure;
FIG. 3: the structure of the sediment removal device is shown schematically.
Detailed Description
The following description of the embodiments of the present invention is made with reference to the accompanying drawings 1 to 3:
as shown in fig. 1-3, a living beings gas clean system, including adsorption tower 1, liquid cooling knockout drum 2, one-level cyclone 3, senior liquid cooling jar 4, second grade cyclone 5, recovery storage tank 6, gas pipeline assembly 7, coolant pipe assembly 8, adsorption tower 1, liquid cooling knockout drum 2, one-level cyclone 3, senior liquid cooling jar 4, second grade cyclone 5 establishes ties in proper order through gas pipeline assembly 7, second grade cyclone 5, senior liquid cooling jar 4, one-level cyclone 3, liquid cooling knockout drum 2 establishes ties in proper order through coolant pipe assembly 8, adsorption tower 1, liquid cooling knockout drum 2, one-level cyclone 3, second grade cyclone 5 all connects on recovery storage tank 6 through the ejection of compact pipeline.
The gas pipeline assembly 7 comprises a pyrolysis gas outlet header pipe 71, a preliminary adsorption gas outlet pipe 72, a liquid cooling separation gas outlet pipe 73, a preliminary cyclone separation gas outlet pipe 74, a liquid cooling gas outlet pipe 75 and a terminal gas outlet pipe 76, wherein one end of the pyrolysis gas outlet header pipe 71 is connected to the gas outlet pipe of the biomass gas pyrolysis furnace, and the other end of the pyrolysis gas outlet header pipe is connected to the bottom end of the adsorption tower 1; one end of the preliminary adsorption air outlet pipe 72 is connected to the top end of the adsorption tower 1, and the other end is connected to the liquid-cooled separation tank 2; one end of the liquid-cooling separation air outlet pipe 73 is connected to the liquid-cooling separation tank 2, and the other end is connected to an air inlet at the top end of the primary cyclone separator 3; one end of the primary cyclone separation air outlet pipe 74 is connected with an air outlet at the top end of the primary cyclone separator 3, and the other end is connected with the bottom end of the high-grade liquid cooling tank 4; one end of the liquid cooling air outlet pipe 75 is connected to the top end of the high-grade liquid cooling tank 4, and the other end is connected to an air inlet at the top end of the secondary cyclone separator 5; one end of the terminal air outlet pipe 76 is connected to the top air outlet of the secondary cyclone separator 5.
The cooling liquid pipeline assembly 8 comprises a cooling liquid input header pipe 81, a secondary cyclone separation cooling liquid discharge pipe 82, a liquid cooling tank cooling liquid discharge pipe 83, a primary cyclone separation cooling liquid discharge pipe 84 and a cooling liquid terminal discharge pipe 85, the outer wall shells of the primary cyclone separator 3 and the secondary cyclone separator 5 are all arranged by adopting double-layer shells, one end of the cooling liquid input header pipe 81 is connected to the cooling liquid input pump, and the other end of the cooling liquid input header pipe is connected to the bottom in the interlayer of the shell of the secondary cyclone separator 5; one end of a secondary cyclone separation cooling liquid discharge pipe 82 is connected to the top end in the interlayer of the shell of the secondary cyclone separator 5, and the other end is connected into the high-grade liquid cooling tank 4; one end of a liquid cooling tank cooling liquid discharge pipe 83 is connected into the high-grade liquid cooling tank 4, and the other end is connected to the bottom in the interlayer of the shell of the primary cyclone separator 3; one end of a primary cyclone separation cooling liquid discharge pipe 84 is connected to the top end in the interlayer of the shell of the primary cyclone separator 3, and the other end is connected into the liquid cooling separation tank 2; one end of the cooling liquid terminal discharge pipe 85 is connected to the inside of the liquid cooling separation tank 2, and the other end is connected to the cooling liquid recovery storage tank.
The interior of the adsorption tower 1 is divided into a biomass material storage area 12 and an adsorption tower gas storage area 13 by a ventilating partition plate 11, an adsorption tower material output auger 14 is arranged on the ventilating partition plate 11, an adsorption tower material output pipe 15 is arranged on the tower body of the adsorption tower 1 at the front end of the adsorption tower material output auger 14, and the other end of the adsorption tower material output pipe 15 is connected to the recovery storage tank 6; the other end of the pyrolysis gas outlet header pipe 71 is connected to the bottom end of the adsorption tower 1 and communicated with the adsorption tower gas storage area 13; one end of the preliminary adsorption air outlet pipe 72 is connected to the top end of the adsorption tower 1 and communicated with the biomass material storage area 12, and a fan is arranged on the preliminary adsorption air outlet pipe 72.
Be provided with defeated material subassembly 9 on adsorption tower 1, defeated material subassembly 9 is including defeated material casing 91, defeated material auger 92, feeding hopper 93, defeated material discharge pipe 94 of auger, defeated material auger motor 95, defeated material auger 92 is installed in defeated material casing 91 and is defeated the material through defeated material auger motor 95 control, feeding hopper 93 sets up in defeated material casing 91 upper end, the defeated material discharge pipe 94 setting of auger is on defeated material casing 91 of defeated material auger 92 bottom front end, defeated material discharge pipe 94 one end of auger communicates to defeated material casing 91 in, the other end is connected on adsorption tower 1 top and is communicate living beings material and deposit district 12.
Two first vertical pipes 21, second vertical pipes 22 and horizontal settling pipes 23 which are parallel to each other are arranged in the liquid cooling separation tank 2, the bottom ends of the first vertical pipes 21 and the second vertical pipes 22 are communicated with the horizontal settling pipes 23, the upper ends of the first vertical pipes 21 and the second vertical pipes 22 and one ends of the horizontal settling pipes 23 penetrate through the outer wall of the liquid cooling separation tank 2 and are provided with settling removal devices 25, the other end of the horizontal settling pipes 23 is provided with a vertical liquid cooling separation settling discharge pipe 24, the upper end of the liquid cooling separation settling discharge pipe 24 is connected to the other end of the horizontal settling pipes 23, and the lower end of the liquid cooling separation settling discharge pipe 24 is connected to the recovery storage tank 6; the other end of the preliminary adsorption air outlet pipe 72 is connected to the liquid-cooling separation tank 2 and communicated with the upper end of the outer wall of the second vertical pipe 22, and one end of the liquid-cooling separation air outlet pipe 73 is connected to the liquid-cooling separation tank 2 and communicated with the upper end of the outer wall of the first vertical pipe 21; the other end of the primary cyclone separation cooling liquid discharge pipe 84 is connected to the lower side of the outer wall of the liquid cooling separation tank 2 and penetrates into the liquid cooling separation tank 2, the lower end of the cooling liquid terminal discharge pipe 85 is connected to the top end of the liquid cooling separation tank 2 and penetrates into the liquid cooling separation tank 2, and the upper end of the cooling liquid terminal discharge pipe 85 is connected to the cooling liquid recovery storage tank.
The precipitation removal device 25 comprises a horn-shaped conical pipe 251, a tail end straight pipe 252, a precipitation removal piston push plate 253, a conical platform-shaped sealing member 254, a hydraulic push rod 255 and a hydraulic motor 256, wherein the large opening end of the horn-shaped conical pipe 251 is fixed at the tail end of the first vertical pipe 21 or the second vertical pipe 22 or the horizontal precipitation pipe 23, namely the large opening ends of the horn-shaped conical pipes 251 of the three precipitation removal devices 25 arranged at the tail ends of the first vertical pipe 21, the second vertical pipe 22 and the horizontal precipitation pipe 23 are respectively fixed with the tail ends of the corresponding first vertical pipe 21, the second vertical pipe 22 and the horizontal precipitation pipe 23; one end of the tail end straight pipe 252 is connected to the small end of the horn-shaped conical pipe 251, and the precipitation removing piston push plate 253 is installed in the first vertical pipe 21 or the second vertical pipe 22 or the horizontal precipitation pipe 23 fixed to the horn-shaped conical pipe 251, namely the precipitation removing piston push plate 253 is installed in the first vertical pipe 21, the second vertical pipe 22 and the horizontal precipitation pipe 23 corresponding to the precipitation removing device 25; the big end of the conical frustum-shaped sealing member 254 is fixed on the precipitation removing piston push plate 253; the hydraulic push rod 255 is arranged in the horn-shaped conical pipe 251 and the tail end straight pipe 252, one end of the hydraulic push rod is fixed at the small end of the conical table-shaped sealing member 254, the other end of the hydraulic push rod is fixed at the other end of the tail end straight pipe 252, and the hydraulic push rod is controlled to stretch and retract through the hydraulic motor 256; an annular sealing ring 257 is arranged on the outer side of the precipitation removing piston push plate 253. The impurity sediment that can deposit the liquid cooling in first vertical pipe 21, the vertical pipe 22 of second, horizontal sedimentation pipe 23 is got rid of through sediment remove device 25, need not to unpack the equipment apart and washs, improves work efficiency, reduces load of labour.
The lower extreme of one-level cyclone 3 is provided with one-level cyclone impurity discharge pipe 31, and one-level cyclone impurity discharge pipe 31 upper end is connected to the lower extreme drain of one-level cyclone 3, and one-level cyclone impurity discharge pipe 31 lower extreme is connected on retrieving storage tank 6.
The interior of the high-grade liquid cooling tank 4 is divided into an upper end gas storage area 42, a middle liquid cooling area 43 and a lower end gas storage area 43 through two closed partition plates 41, a plurality of gas liquid cooling coils 45 are arranged in the middle liquid cooling area 43, and two ends of each gas liquid cooling coil 45 respectively penetrate through the two closed partition plates 41 and are respectively communicated with the upper end gas storage area 42 and the lower end gas storage area 43; the other end of the primary cyclone separation air outlet pipe 74 is connected with the bottom end of the high-grade liquid cooling tank 4 and penetrates through the lower end gas storage area 43; one end of the liquid cooling air outlet pipe 75 is connected to the top end of the high-grade liquid cooling tank 4 and penetrates through the upper end gas storage area 42; the other end of the secondary cyclone separation cooling liquid discharge pipe 82 is arranged at the lower side of the outer wall of the high-grade liquid cooling tank 4 corresponding to the intermediate liquid cooling area 43 and communicated with the intermediate liquid cooling area 43; one end of the liquid cooling tank cooling liquid discharge pipe 83 is arranged on the upper side of the outer wall of the high-grade liquid cooling tank 4 corresponding to the intermediate liquid cooling zone 43 and communicated with the intermediate liquid cooling zone 43.
The lower extreme of second grade cyclone 5 is provided with second grade cyclone impurity discharge pipe 51, and second grade cyclone impurity discharge pipe 51 upper end is connected to the lower extreme drain of second grade cyclone 5, and the lower extreme of second grade cyclone impurity discharge pipe 51 is connected on retrieving storage tank 6.
Retrieve 6 below of storage tank and be provided with pyrolysis material input tube 61, pyrolysis material input tube 61 upper end is connected on retrieving storage tank 6 lower extreme terminal surface, and its lower extreme communicates to on the biomass gas pyrolysis furnace.
In the working process of the biomass gas purification system of the device, the crushed biomass raw materials including crop straws, waste wood and the like are conveyed into the adsorption tower 1 by using the material conveying assembly 9 arranged on the adsorption tower 1, and the crushed biomass raw materials are used for preliminarily adsorbing impurities such as tar dust and the like in the biomass gas discharged from the pyrolysis furnace through the adsorption tower 1, so that the biomass raw materials can be preheated, and the energy consumption is reduced; the biomass gas preliminarily adsorbed by the adsorption tower 1 is input into the liquid cooling separation tank 2, and is preliminarily cooled by the liquid cooling separation tank 2, so that partial separation of impurities in the biomass gas is realized, and the separation efficiency of the primary cyclone separator 3 in the next step is improved; the high-grade liquid cooling tank 4 is used for realizing the high-efficiency cooling of the biomass gas, greatly reducing the temperature and further improving the separation efficiency of the secondary cyclone separator 5; the secondary cyclone separator 5, the high-grade liquid cooling tank 4, the primary cyclone separator 3 and the liquid cooling separation tank 2 are sequentially connected in series through a cooling liquid pipeline 8 assembly, the flow path of the cooling liquid is just opposite to the biomass gas purification path in the device, efficient cooling in the material gas purification process is realized, and the purification efficiency is improved; the biomass raw materials preliminarily adsorbed and preheated in the adsorption tower are stored by utilizing the recovery storage tank 7, and impurities such as tar dust and the like separated in the liquid cooling separation tank 2, the primary cyclone separator 3 and the secondary cyclone separator 5 are recovered, stored and reused. The invention has the advantages of ingenious design, compact structure, simple process, higher purification efficiency of impurities such as tar dust and the like, stable quality, extremely low environmental pollution and capability of effectively improving the combustion quality of gas.
The invention has been described above with reference to the accompanying drawings, it is obvious that the invention is not limited to the specific implementation in the above-described manner, and it is within the scope of the invention to adopt such insubstantial modifications of the inventive concept and solution, or to apply the inventive concept and solution directly to other applications without such modifications.
Claims (9)
1. A biomass gas purification system is characterized by comprising an adsorption tower (1), a liquid cooling separation tank (2), a primary cyclone separator (3), a high-grade liquid cooling tank (4), a secondary cyclone separator (5), a recovery storage tank (6), a gas pipeline assembly (7) and a cooling liquid pipeline assembly (8), wherein the adsorption tower (1), the liquid cooling separation tank (2), the primary cyclone separator (3), the high-grade liquid cooling tank (4) and the secondary cyclone separator (5) are sequentially connected in series through the gas pipeline assembly (7), the secondary cyclone separator (5), the high-grade liquid cooling tank (4), the primary cyclone separator (3) and the liquid cooling separation tank (2) are sequentially connected in series through the cooling liquid pipeline assembly (8), and the adsorption tower (1), the liquid cooling separation tank (2), the primary cyclone separator (3) and the secondary cyclone separator (5) are all connected on the recovery storage tank (6) through discharge pipelines, a material conveying assembly (9) is arranged on the adsorption tower (1);
the gas pipeline assembly (7) comprises a pyrolysis gas outlet header pipe (71), a preliminary adsorption gas outlet pipe (72), a liquid cooling separation gas outlet pipe (73), a preliminary cyclone separation gas outlet pipe (74), a liquid cooling gas outlet pipe (75) and a terminal gas outlet pipe (76), wherein one end of the pyrolysis gas outlet header pipe (71) is connected to the gas outlet pipe of the biomass gas pyrolysis furnace, and the other end of the pyrolysis gas outlet header pipe is connected to the bottom end of the adsorption tower (1); one end of the primary adsorption air outlet pipe (72) is connected to the top end of the adsorption tower (1), and the other end of the primary adsorption air outlet pipe is connected to the liquid cooling separation tank (2); one end of the liquid cooling separation air outlet pipe (73) is connected to the liquid cooling separation tank (2), and the other end of the liquid cooling separation air outlet pipe is connected to an air inlet at the top end of the primary cyclone separator (3); one end of the primary cyclone separation air outlet pipe (74) is connected with an air outlet at the top end of the primary cyclone separator (3), and the other end of the primary cyclone separation air outlet pipe is connected with the bottom end of the high-grade liquid cooling tank (4); one end of the liquid cooling air outlet pipe (75) is connected to the top end of the high-grade liquid cooling tank (4), and the other end of the liquid cooling air outlet pipe is connected to an air inlet at the top end of the secondary cyclone separator (5); one end of the terminal air outlet pipe (76) is connected to an air outlet at the top end of the secondary cyclone separator (5);
the cooling liquid pipeline assembly (8) comprises a cooling liquid input header pipe (81), a secondary cyclone separation cooling liquid discharge pipe (82), a liquid cooling tank cooling liquid discharge pipe (83), a primary cyclone separation cooling liquid discharge pipe (84) and a cooling liquid terminal discharge pipe (85), outer wall shells of the primary cyclone separator (3) and the secondary cyclone separator (5) are all arranged by adopting double-layer shells, one end of the cooling liquid input header pipe (81) is connected to a cooling liquid input pump, and the other end of the cooling liquid input header pipe is connected to the bottom in a shell interlayer of the secondary cyclone separator (5); one end of the secondary cyclone separation cooling liquid discharge pipe (82) is connected to the top end in the interlayer of the shell of the secondary cyclone separator (5), and the other end of the secondary cyclone separation cooling liquid discharge pipe is connected into the high-grade liquid cooling tank (4); one end of the liquid cooling tank cooling liquid discharge pipe (83) is connected into the high-grade liquid cooling tank (4), and the other end of the liquid cooling tank cooling liquid discharge pipe is connected to the bottom in the shell interlayer of the first-grade cyclone separator (3); one end of the primary cyclone separation cooling liquid discharge pipe (84) is connected to the top end in the interlayer of the shell of the primary cyclone separator (3), and the other end of the primary cyclone separation cooling liquid discharge pipe is connected into the liquid cooling separation tank (2); and one end of the cooling liquid terminal discharge pipe (85) is connected into the liquid cooling separation tank (2), and the other end of the cooling liquid terminal discharge pipe is connected into the cooling liquid recovery storage tank.
2. The biomass gas purification system according to claim 1, wherein the inside of the adsorption tower (1) is divided into a biomass material storage area (12) and an adsorption tower gas storage area (13) by a gas permeable partition (11), an adsorption tower material output auger (14) is arranged on the gas permeable partition (11), an adsorption tower material output pipe (15) is arranged on the tower body of the adsorption tower (1) at the front end of the adsorption tower material output auger (14), and the other end of the adsorption tower material output pipe (15) is connected to the recovery storage tank (6); the other end of the pyrolysis gas outlet header pipe (71) is connected to the bottom end of the adsorption tower (1) and communicated with a gas storage area (13) of the adsorption tower; one end of the preliminary adsorption air outlet pipe (72) is connected to the top end of the adsorption tower (1) and communicated with the biomass material storage area (12), and a fan is arranged on the preliminary adsorption air outlet pipe (72).
3. The biomass gas purification system according to claim 2, wherein the material conveying assembly (9) comprises a material conveying housing (91), a material conveying auger (92), a material feeding hopper (93), an auger material conveying discharge pipe (94) and a material conveying auger motor (95), the material conveying auger (92) is installed in the material conveying housing (91) and controls material conveying through the material conveying auger motor (95), the material feeding hopper (93) is arranged at the upper end of the material conveying housing (91), the auger material conveying discharge pipe (94) is arranged on the material conveying housing (91) at the front end of the bottom of the material conveying auger (92), one end of the auger material conveying discharge pipe (94) is communicated into the material conveying housing (91), and the other end of the auger material conveying discharge pipe is connected to the top of the adsorption tower (1) and communicated with the biomass material storage area (12).
4. The biomass gas purification system according to claim 1, wherein two first vertical pipes (21), second vertical pipes (22) and horizontal settling pipes (23) are arranged in the liquid-cooled separation tank (2) and are parallel to each other, the bottom ends of the first vertical pipe (21) and the second vertical pipe (22) are communicated with the horizontal sedimentation pipe (23), the upper ends of the first vertical pipe (21) and the second vertical pipe (22) and one end of the horizontal settling pipe (23) are all communicated with the outer wall of the liquid cooling separation tank (2) and are provided with a sediment removing device (25), the other end of the horizontal settling pipe (23) is provided with a vertical liquid cooling separation settling discharge pipe (24), the upper end of the liquid cooling separation and precipitation discharge pipe (24) is connected with the other end of the horizontal precipitation pipe (23), the lower end of the liquid cooling separation and precipitation discharge pipe (24) is connected to the recovery storage tank (6); the other end of the preliminary adsorption air outlet pipe (72) is connected to the liquid cooling separation tank (2) and communicated with the upper end of the outer wall of the second vertical pipe (22), and one end of the liquid cooling separation air outlet pipe (73) is connected to the liquid cooling separation tank (2) and communicated with the upper end of the outer wall of the first vertical pipe (21); the one-level cyclone separation cooling liquid discharge pipe (84) other end is connected to inside liquid cooling knockout drum (2) outer wall downside and runs through to liquid cooling knockout drum (2), cooling liquid terminal discharge pipe (85) lower extreme is connected to inside liquid cooling knockout drum (2) top and runs through to liquid cooling knockout drum (2), cooling liquid terminal discharge pipe (85) upper end is connected at the cooling liquid and is retrieved the storage tank.
5. The biomass gas purification system according to claim 4, wherein the precipitation removal device (25) comprises a trumpet-shaped conical pipe (251), a tail end straight pipe (252), a precipitation removal piston push plate (253), a conical platform-shaped sealing member (254), a hydraulic push rod (255) and a hydraulic motor (256), the big opening end of the trumpet-shaped conical pipe (251) is fixed at the tail end of the first vertical pipe (21) or the second vertical pipe (22) or the horizontal settling pipe (23), one end of the tail end straight pipe (252) is connected to the small-mouth end of the horn-shaped conical pipe (251), the precipitation removing piston push plate (253) is arranged in a first vertical pipe (21) or a second vertical pipe (22) or a horizontal precipitation pipe (23) which is fixed by a trumpet-shaped conical pipe (251), the big end of the conical frustum-shaped sealing member (254) is fixed on the precipitation removing piston push plate (253); the hydraulic push rod (255) is arranged in the horn-shaped conical pipe (251) and the tail end straight pipe (252), one end of the hydraulic push rod is fixed at the small head end of the conical table-shaped sealing element (254), the other end of the hydraulic push rod is fixed at the other end of the tail end straight pipe (252), and the hydraulic push rod is controlled to stretch and retract through the hydraulic motor (256); and an annular sealing ring (257) is arranged on the outer side of the precipitation removing piston push plate (253).
6. The biomass gas purification system as recited in claim 1, wherein the lower end of the primary cyclone separator (3) is provided with a primary cyclone impurity discharge pipe (31), the upper end of the primary cyclone impurity discharge pipe (31) is connected to a lower sewage discharge outlet of the primary cyclone separator (3), and the lower end of the primary cyclone impurity discharge pipe (31) is connected to the recovery storage tank (6).
7. The biomass gas purification system according to claim 1, wherein the inside of the high-grade liquid-cooling tank (4) is divided into an upper-end gas storage area (42), a middle liquid-cooling area (43) and a lower-end gas storage area (43) by two airtight partition plates (41), a plurality of gas-liquid cooling coils (45) are arranged in the middle liquid-cooling area (43), and two ends of each gas-liquid cooling coil (45) respectively penetrate through the two airtight partition plates (41) and are respectively communicated with the upper-end gas storage area (42) and the lower-end gas storage area (43); the other end of the primary cyclone separation air outlet pipe (74) is connected to the bottom end of the high-grade liquid cooling tank (4) and penetrates through a gas storage area (43) at the lower end; one end of the liquid cooling air outlet pipe (75) is connected to the top end of the high-grade liquid cooling tank (4) and penetrates through the upper end gas storage area (42); the other end of the secondary cyclone separation cooling liquid discharge pipe (82) is arranged on the lower side of the outer wall of the high-grade liquid cooling tank (4) corresponding to the intermediate liquid cooling area (43) and communicated with the intermediate liquid cooling area (43); one end of the liquid cooling tank cooling liquid discharge pipe (83) is arranged on the upper side of the outer wall of the high-grade liquid cooling tank (4) corresponding to the middle liquid cooling area (43) and communicated with the middle liquid cooling area (43).
8. The biomass gas purification system as recited in claim 1, wherein a secondary cyclone impurity discharge pipe (51) is arranged at the lower end of the secondary cyclone separator (5), the upper end of the secondary cyclone impurity discharge pipe (51) is connected to a sewage outlet at the lower end of the secondary cyclone separator (5), and the lower end of the secondary cyclone impurity discharge pipe (51) is connected to the recovery storage tank (6).
9. The biomass gas purification system according to claim 1, wherein a pyrolysis material input pipe (61) is arranged below the recovery storage tank (6), the upper end of the pyrolysis material input pipe (61) is connected to the lower end face of the recovery storage tank (6), and the lower end of the pyrolysis material input pipe is communicated to the biomass gas pyrolysis furnace.
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| JPS5579093A (en) * | 1978-12-12 | 1980-06-14 | Sumikin Coke Co Ltd | Treating method for coke oven gas liquid |
| US20080016910A1 (en) * | 2006-07-21 | 2008-01-24 | Adam Adrian Brostow | Integrated NGL recovery in the production of liquefied natural gas |
| CN102154021B (en) * | 2011-02-24 | 2013-03-27 | 唐山汇力科技有限公司 | Purification recovery system for producing charcoal, gas and oil by biomass raw material, and processing technique thereof |
| CN204644311U (en) * | 2015-03-30 | 2015-09-16 | 中国石油化工股份有限公司华东分公司采油厂 | Moisture gas dewatering device |
| CN204745986U (en) * | 2015-06-10 | 2015-11-11 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Negative pressure formula gas -liquid separation |
| CN205710585U (en) * | 2016-05-05 | 2016-11-23 | 河北天善生物技术有限公司 | A kind of co-generation system of biomass carbon, combustion gas, wood tar and wood vinegar |
| CN205628890U (en) * | 2016-05-16 | 2016-10-12 | 西安华大骄阳绿色科技有限公司 | Domestic waste is innoxious, resourceful treatment equipment |
| CN105861020B (en) * | 2016-06-07 | 2017-10-27 | 山东理工大学 | Biomass pyrolytic gas liquefaction processing system |
| CN106867585B (en) * | 2017-04-19 | 2019-06-21 | 大连理工大学 | From detar formula organic solid apparatus for gasifying fuel and method in furnace |
| CN110229707A (en) * | 2019-07-25 | 2019-09-13 | 祖柏实 | A kind of agriculture and forestry organic waste material low temperature pyrogenation high heating value granular fuel production equipment and process |
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