CN108325367A - A kind of methane purification two-stage filter - Google Patents

A kind of methane purification two-stage filter Download PDF

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Publication number
CN108325367A
CN108325367A CN201810227321.3A CN201810227321A CN108325367A CN 108325367 A CN108325367 A CN 108325367A CN 201810227321 A CN201810227321 A CN 201810227321A CN 108325367 A CN108325367 A CN 108325367A
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China
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partition board
hothouse
velocity
tank body
secondary filtration
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CN201810227321.3A
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不公告发明人
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Yantai Minwang Electromechanical Technology Co Ltd
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Yantai Minwang Electromechanical Technology Co Ltd
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Priority to CN201810227321.3A priority Critical patent/CN108325367A/en
Publication of CN108325367A publication Critical patent/CN108325367A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/75—Multi-step processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/26—Drying gases or vapours
    • B01D53/265—Drying gases or vapours by refrigeration (condensation)
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/48—Sulfur compounds
    • B01D53/52—Hydrogen sulfide
    • B01D53/526—Mixtures of hydrogen sulfide and carbon dioxide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/77—Liquid phase processes
    • B01D53/78—Liquid phase processes with gas-liquid contact
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
    • C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
    • C10L3/10—Working-up natural gas or synthetic natural gas
    • C10L3/101—Removal of contaminants
    • C10L3/102—Removal of contaminants of acid contaminants
    • C10L3/103—Sulfur containing contaminants
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
    • C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
    • C10L3/10—Working-up natural gas or synthetic natural gas
    • C10L3/101—Removal of contaminants
    • C10L3/102—Removal of contaminants of acid contaminants
    • C10L3/104—Carbon dioxide
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
    • C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
    • C10L3/10—Working-up natural gas or synthetic natural gas
    • C10L3/101—Removal of contaminants
    • C10L3/106—Removal of contaminants of water
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/30—Alkali metal compounds
    • B01D2251/304—Alkali metal compounds of sodium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/40—Alkaline earth metal or magnesium compounds
    • B01D2251/404—Alkaline earth metal or magnesium compounds of calcium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2256/00—Main component in the product gas stream after treatment
    • B01D2256/24—Hydrocarbons
    • B01D2256/245—Methane
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/30—Sulfur compounds
    • B01D2257/304—Hydrogen sulfide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/50—Carbon oxides
    • B01D2257/504—Carbon dioxide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/80—Water
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/05—Biogas
    • 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
    • Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
    • Y02C20/00—Capture or disposal of greenhouse gases
    • Y02C20/40—Capture or disposal of greenhouse gases of CO2

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • Biomedical Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Gas Separation By Absorption (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Treating Waste Gases (AREA)

Abstract

The invention discloses a kind of methane purification two-stage filters, including filtering tank, filtering tank is connected with biogas air collector, biogas is collected from biogas air collector, usually the biogas in biogas air collector is extracted out with wind turbine, is squeezed into filtering tank, filtering tank includes tank body, it is provided with the partition board that will separate above and below tank body in tank body, there are openings among partition board；Inlet chamber, inlet chamber upside setting by-pass filtration room is arranged in tank base, and partition board top is arranged secondary filtration room, condensation hothouse is arranged above secondary filtration room, is inside additionally provided with vibrations frame.The beneficial effects of the invention are as follows：Reasonable design, it is simple in structure, by the way that individual inlet chamber is arranged, the gas of entrance is set to be divided into two strands, wherein one gas is set to be discharged and become irregular flow direction by the gas vent being arranged on spiral air inlet, interference is mutually collided with another strand of gas and achievees the effect that deceleration, and natural clinoptilolite is set in baffle as adsorbent, plays the effect filtered to biogas preliminary purification.

Description

A kind of methane purification two-stage filter
This case is divisional application, original application it is entitled：A kind of methane pretreatment apparatus, the applying date of original application For：2016-01-28, original application application No. is：201610058081.X.
Technical field
The present invention relates to biomass energies to develop and use field, more particularly to a kind of methane purification two-stage filter.
Background technology
Biogas is a kind of fuel gas with higher thermal value, and main component is methane (CH4) and carbon dioxide (CO2) With a small amount of nitrogen (N2), hydrogen (H2), oxygen (O2), hydrogen sulfide (H2The gases such as S), wherein methane content is 45%~60%. Compared with other combustion gas, the biogas capability of antidetonance is preferable, is a kind of good clean fuel, is traditionally taken mostly using biogas Warm, cooking and illumination.With being continuously increased for biogas output, the middle and high end utilization ways of biogas constantly extend, and marsh gas purifying carries Can be used for cogeneration of heat and power after pure, be incorporated to gas distributing system, vehicle fuel, industrial chemicals and fuel cell etc..Sweden in 1992 The Laholm biogas plants of foundation are the factories that biological methane is incorporated to gas distributing system by Sweden's the first.China is in the 1930s Rural area begins to build underground methane-generating pit, and to the end of the year 2008, national domestic methane tank has reached more than 3,000 ten thousand mouthfuls, livestock and poultry farm, food The large and medium-sized biogas engineerings such as product processing, brewery, municipal sewage plant produce biogas per year and total over 14,000,000,000 up to 1600 many places m3, compare China 70,000,000,000 m of natural gas dosage in 20083, this part energy is considerable.Currently, a large amount of biogas utilization is also It is based on low-grade heat utilization, as centralized biogas engineering continues to develop, single methane engineering methane yield constantly increases Greatly, power generation and the capacity usage ratios higher such as purification vehicle fuel, energy export more technologies there is an urgent need for be promoted.
Biogas as a kind of natural energy source, inhale after the pretreatments such as desulfurization, dehydration, dedusting, pressurization into transformation by biogas Adsorption device, by boosting, absorption, along put, inverse put and after the processes such as vacuumizing, methane is gone out by pressure-swing absorber top row, and conduct Product gas is collected, and pipeline enters gas ductwork or the outward transport of high pressure tank car, and carbon dioxide and nitrogen etc. are by absorbed component, desorption It is discharged afterwards by bottom of tower.But there are greenhouse effects since the various reasons of social development cause carbon dioxide largely to discharge, closely Nian Laiqi is such as：Tellurian pest and disease damage increases；Sea level rise；Adverse weather, Marine Storm Genesis increase；Dry land, desert Change being more and more obvious for the harm embodiments such as area increases or even winter turns cold.In addition traditional marsh gas pretreatment unit because The relationship of its operation principle needs to cause total volume very big the repeated multiple times processing of gas progress.
Invention content
To solve the above-mentioned problems, the present invention provides a kind of methane purification two-stage filters, as methane purification Primary filter in preprocessing process, including filtering tank, the filtering tank are connected with biogas air collector, from the biogas Biogas is collected in air collector, and usually the biogas in biogas air collector is extracted out with wind turbine, is squeezed into the filtering tank, the filtering Tank includes tank body, the partition board for separating the tank body up and down is provided in the tank body, there are openings at the partition board middle part；It is described Partition board is tilted along described be open to both sides, and at inverted " v " shape, the partition board upper surface is the cambered surface that middle part raises up, described Partition board both sides are provided with diversion trench, are arranged velocity-reducing chamber on the partition board, velocity-reducing chamber be one for biogas by and reach wherein The chamber of deceleration purpose, the opening are connected to the inlet channel of the velocity-reducing chamber.Inlet chamber is arranged in the tank base, described Setting by-pass filtration room on the upside of inlet chamber, the partition board top setting secondary filtration room；It is provided with labyrinth type in the inlet chamber The air inlet pipe of baffle and disc type.It is provided with above the secondary filtration room and gets rid of drop device and holder, the holder both ends and the tank Internal wall is fixedly connected, and the drop device that gets rid of is connect with the holder, is arranged on the central axis of the tank body.In the tank body Including horizontally disposed hothouse partition board, the hothouse partition board is arranged above the secondary filtration room, in the tank body Wall is fixedly connected, setting condensation hothouse on the upside of the hothouse partition board.
The velocity-reducing chamber includes velocity-reducing chamber air inlet pipe, and the velocity-reducing chamber air inlet pipe is spiral shape, passes through velocity-reducing chamber baffle, institute It states velocity-reducing chamber baffle to be staggered in the velocity-reducing chamber, and only one end is fixedly connected with the inner wall of the velocity-reducing chamber, it is described Velocity-reducing chamber bottom is connect with the partition board, and air-dispersing layer is arranged in top, and the inlet end of the opening and the velocity-reducing chamber air inlet pipe connects Logical, the other end of the velocity-reducing chamber air inlet pipe is closed, and gas vent is distributed on the tube body of the velocity-reducing chamber air inlet pipe；In order to gather The gas of by-pass filtration room so the partition board is arranged into inverted " v " shape, and makes gas by the opening that its middle part is arranged Outflow, but therefore structure gas flow rate can be caused to be accelerated, so velocity-reducing chamber is arranged by the gas of acceleration in the open upper side in partition board Body slows down again, to ensure the filter effect of gas.
The air inlet pipe is spiral shape and passes through the baffle, and the baffle only has one end and the cavity wall of the inlet chamber connects It connects, what the baffle interlocked up and down is set in the inlet chamber, and the baffle is grid framework, is arranged in the frame and is modified Clinoptilolite adsorbent, modified clinoptilolite adsorbent mainly play the role of absorption to nitrogen.The air inlet pipe passes through described Air inlet is arranged in baffle, the inlet chamber outside, and described air inlet one end is connected to the biogas air collector, other end connection three Logical, the other both ends of threeway, one end is connect with the air inlet pipe, and the other end is passed directly into the inlet chamber；The air inlet Gas vent is distributed on pipe, several ventholes are set at the top of the inlet chamber；Because biogas is slowly generated by chemically reacting , so it is very small usually to collect itself pressure in the air collector of biogas, it is therefore desirable to by wind turbine by the biogas in air collector Extraction, it is contemplated that in order to improve biogas by-pass filtration effect, the biogas of entrance is carried out by the inlet chamber of special construction Slow down, biogas is entered after the threeway by the air inlet and is divided into two parts, and a part enters the air inlet pipe, another portion Divide and be then directly entered in the inlet chamber, slowing effect will be also functioned into gas distribution herein, into the air inlet pipe Biogas, during advance, from the gas vent discharge on tube body, and because air inlet pipe is spiral shape, the biogas side of discharge To being irregular；On the other hand, the biogas for the inlet chamber being directly entered, under the action of baffle, speed reduces, while with The abnormal flow being discharged in air inlet pipe to biogas collision, speed further decreases, and is carried out by the adsorbent in baffle preliminary Absorption, the wherein foreign gases such as nitrogen first by a preliminary absorption part, enter via the venthole at the top of the inlet chamber later Into by-pass filtration room.
The by-pass filtration room is provided with by-pass filtration liquid pool, and the by-pass filtration liquid pool is set on the inlet chamber Gas blow head is arranged in side, by-pass filtration liquid pool bottom, and the gas blow head passes through with the venthole at the top of the inlet chamber Tracheae connects；The gas blow head is cylinder, and fine and closely woven aperture is distributed with thereon, selects the alkali resistant materials such as plastics, resin, glass It is made.Play the role of the biogas of entrance being dispersed into tiny bubble, improves gas filtration effect.
The secondary filtration room is provided with the secondary filtration liquid pool being connect with the tank body madial wall, the secondary filtration liquid Ultrasonic transducer is arranged in bottom of pond portion；Secondary filtration liquid pool edge is slightly above the air-dispersing layer.The air-dispersing layer with it is described Gas blow head is made of same material, and gather aperture thereon, plays the effect of dispersion and mitigation of gases flow velocity.
Preferably, secondary filtration liquid pool edge is higher than the air-dispersing layer surface.
The filtered fluid used in the by-pass filtration liquid pool is sodium hydroxide solution, is used in the secondary filtration liquid pool Filtered fluid is calcium hydroxide solution.When biogas enters in the by-pass filtration liquid pool, hydrogen sulfide therein and titanium dioxide Carbon is reacted with filtered fluid and is absorbed.
The secondary filtration liquid pool is annular, and the ultrasonic transducer is arranged four, is evenly distributed in the two level mistake Reservoir bottom.Via the upward gas of by-pass filtration liquid pool when reaching the partition board, then gather along the direction of the partition board Opening in the middle part of to it.Enter the upper space of the partition board from opening.The ultrasonic transducer is by the two level mistake Calcium hydroxide solution atomization in reservoir, the calcium hydroxide solution of atomization will overflow the secondary filtration liquid pool, and from institute The biogas in bulkhead apertures out is stated to be reacted, because be the calcium hydroxide of atomization, and loop configuration can ensure to be atomized Calcium hydroxide solution from annular center opening concentration fall, biogas is gathered using velocity-reducing chamber deceleration heel row by opening again Go out, therefore can play well to carbon dioxide absorption effect.
The tank wall above the secondary filtration liquid pool, which is provided with, is observed that the secondary filtration liquid pool Observation window.By observation window it is observed that the liquid situation of secondary filtration liquid pool, because calcium carbonate is white precipitate, bicarbonate Calcium is colourless with calcium hydroxide solution, thus in calcium hydroxide solution using the liquid in initial stage secondary filtration liquid pool be it is colourless, When using a period of time after have white precipitate, when white precipitate is gradually reduced to it is no when, illustrate inside filtering liquid-based Originally calcium bicarbonate solution is had been changed to, byproduct can be regarded and taken out, new calcium hydroxide is then added and used as filtered fluid.
The drop device that gets rid of includes the driving mechanism being made of motor and gear, and drop device is got rid of described in the driving mechanism connection The central axis of mobile jib, the mobile jib is provided with connecting rod, and rest part is hollow, and the connecting rod passes through the holder and the driving The driving axis connection of mechanism；The mobile jib both sides are symmetrical arranged several cross bars, and the cross bar is hollow pipe, and with the mobile jib Inside connection；The outboard end setting centrifugal drying of the cross bar drips plug；
Block is got rid of in side setting to the centrifugal drying drop beyond the Great Wall, and the cone bottom got rid of on the inside of block with conical plug and the one end for centrifuging connecting rod are fixed Connection, centrifugation connecting rod setting are plugged in the conical plug both sides, the other end for centrifuging connecting rod in rod set, it is described from It is connected by spring between heart connecting rod and the rod set, the rod set is fixedly connected with the outboard end of the cross bar；
The promising mobile jib for getting rid of drop device of setting provides the liquid supply pipe of liquid in the holder, and drop is got rid of in the liquid supply pipe connection Device water pump, water outlet are arranged on the upside of the mobile jib, and water inlet end is arranged in secondary filtration liquid pool bottom.By getting rid of drop device Filtered fluid in secondary filtration liquid pool is drawn into mobile jib by water pump, then under the action of driving mechanism, gets rid of drop device rotation, when After rotating speed improves, the block that gets rid of of centrifugal drying drop plug is moved to the outside for getting rid of drop device under the influence of centrifugal force, is driven on the inside of it Conical plug is detached from cross bar, and the filtered fluid inside the process mobile jib of rotation is thrown out of via cross bar, and the filtered fluid thrown away is hit In the vertex of a cone of conical plug, because of the relationship of vertex of a cone shape, shock makes filtered fluid be dispersed into droplet, is thrown away to expand liquid Area；Liquid is dispersed into drop, compares the atomizing effect of atomizer, the volume of this drop is larger, with atomization filtered fluid It is used in combination, carbon dioxide absorption effect is more preferable.The drop thrown away is either got rid of into secondary filtration liquid pool, is still got rid of to lower section Partition board on, can be re-used.
The by-pass filtration liquid pool and the level-one liquid-adding cell bottom being set on the outside of the tank body are interconnected, the two level Filtering liquid pool is connected to the two level liquid-adding cell bottom being set on the outside of the tank body, and the two level liquid-adding cell is provided with head cover. By the two level liquid-adding cell on the outside of the tank body, it is observed that the amount of solution in a secondary filtration liquid pool is how many, and It can facilitate from here towards the solution that needs are added or extracted out in a secondary filtration liquid pool.Head cover prevents dust debris etc. from falling into In one secondary filtration liquid pool.
The partition board connects liquid box with setting below the junction of the tank body.Enter secondary filtration room via the partition board Become calcium carbonate after biogas, with the calcium hydroxide reaction of atomization, because calcium carbonate is heavier, the upper of the partition board can be dropped down onto Surface, and calcium carbonate will continue to become calcium bicarbonate with carbon dioxide reaction.In addition the partition board to be centered on being open, to described The side wall of tank body is tilted at inverted " v " shape, and the partition board upper surface is cambered surface, when calcium carbonate or calcium bicarbonate are run up to centainly It can flow down along the diversion trench of the partition board after amount, be connect in liquid box into described.
Water pump is provided on the upside of the secondary filtration liquid pool, the water pump connects drainage tube, and the drainage tube water inlet end is set Liquid cassette bottom portion is met described in being placed in, water outlet is placed in above the secondary filtration liquid pool.Described connect in liquid box has from the partition board The calcium carbonate and calcium bicarbonate of upper collection, for tosca in bottom, the inlet segment of the drainage tube is arranged connects liquid box described Calcium carbonate soln can be withdrawn by the water pump in the secondary filtration liquid pool, because calcium carbonate can be with dioxy by bottom Changing carbon, the reaction was continued becomes calcium bicarbonate, so may continue as the filtering of carbon dioxide via ultrasonic transducer atomization Liquid uses.It is used as the filtered fluid of carbon dioxide via ultrasonic transducer atomization.So calcium hydroxide can be made molten Liquid makes full use of.Finally recycling calcium bicarbonate solution is as byproduct.
Hothouse tracheae is provided in the condensation hothouse, the hothouse tracheae is coil pipe, and both ends both pass through institute It states hothouse partition board to extend in the secondary filtration room, both ends extend to the indoor part of the secondary filtration and are set as loudspeaker Mouthful, stomata is distributed on the hothouse tracheae tube body, semiconductor cooling condenser is arranged in both sides.In the indoor natural pond of the secondary filtration Gas can only be extended to the indoor horn mouth of the secondary filtration by hothouse tracheae and entered because of the blocking of hothouse partition board, And the hothouse tracheae is coil pipe, stomata is distributed with thereon, and be simultaneously from both ends air inlet, so in hothouse tracheae Two strands of gases will uniformly be discharged from stomata after meeting, and form one uniform air-flow.In the semiconductor cooling condenser Under refrigeration effect, can be reached with this because the effect of the semiconductor condenser is to condense by the wet gas in biogas Dry purpose facilitates the progress of follow-up biogas treatment.Hothouse diversion trench, the liquid of condensation are provided on the hothouse partition board Body enters hothouse diversion pipe along hothouse diversion trench and flows into the secondary filtration liquid pool of lower section.Hothouse tracheae disk is at circle Water conservancy diversion gas-guide tube is arranged in shape, circle centre position, and the water conservancy diversion gas-guide tube extends to the secondary filtration liquid across the hothouse partition board Chi Zhong.Even if because the relationship that temperature reduces, leads to have the liquid of partial condensation to appear in the hothouse tracheae, is entering Under the action of biogas, directly enter secondary filtration liquid pool via water conservancy diversion gas-guide tube.When Deng recycling the liquid in secondary filtration liquid pool Putting away together can.
The semiconductor cooling condenser is provided with ultrasonic wave shake plate on one side towards the hothouse tracheae；Ultrasonic wave shake plate is produced Raw ultrasonic vibration can condense frosting, to influence refrigeration effect, institute to avoid semiconductor cooling condenser surface because of wet gas It states and is provided with vibrations frame on the upside of hothouse tracheae, the vibrations frame includes horizontally disposed cross bar and is arranged in the cross bar both sides Upright bar form door type frame, the upright bar is fixedly connected on the hothouse partition board, the cross bar following table of the vibrations frame EDS maps have protrusion, and vibration motor is provided at the center of the cross bar upper surface, and the cross bar is made of elastic material.The shake Vibrations pass to the cross bar of vibrations frame after dynamic motor is opened, because cross bar is made of elastic material, cross bar is by vibrating effect Amplification, vibrations pass to the protrusion of cross bar lower surface, by the lasting vibrations hothouse tracheae of protrusion, to avoid liquid It is attached to hothouse inner surface of trachea for a long time, leads to frosting, influences gas and pass through.
Vibrations frame also can form jolting plate by parallel connect of multiple door type frames, to increase vibrations area, reinforce shake Dynamic effect.
The tank body upper surface connects solar charging panel, and the solar charging panel connects accumulator, with the water pump Electrical connection.
Improved primary filter has good filter effect, can simplify and to be used needed for later stage adsorption process Equipment is that whole installation simplifies, and volume reduces, convenient transportation, with Container Transport to each biogas collection point between realization town and country Remove to collect simultaneously purifying biogas.
The advantageous effect that technical solution provided in an embodiment of the present invention is brought is：Reasonable design of the present invention, it is simple in structure, lead to It crosses and individual inlet chamber is set, the gas of entrance is made to be divided into two strands, make wherein one by the gas vent being arranged on spiral air inlet Stock gas is discharged and becomes irregular flow direction, mutually collide to interfere with another strand of gas and achievees the effect that deceleration, in baffle Natural clinoptilolite is set as adsorbent, plays the effect filtered to biogas preliminary purification.Biogas is disperseed by gas blow head, Improve the effect absorbed and filtered.Inverted " v " shape structure can gather biogas to the middle part of secondary filtration room, and through over-subtraction with opening Fast chamber reduces gas flow rate, and the filtered fluid after atomization is fallen and can be come into full contact with biogas by annular center opening, is tied simultaneously Conjunction is got rid of drop device and is thrown away filtered fluid in the form of droplet, with atomization filtering also in relation with using, achievees the effect that best, this is external Sink, water pump, drainage tube, which combine, to be made because the calcium carbonate that reaction becomes again acts as absorbing carbon dioxide, and eventually becomes carbonic acid Hydrogen calcium byproduct avoids the problem of traditional methane purification method needs carbon dioxide being discharged.In addition improved primary Filter device has good filter effect, condensation hothouse to carry out cooling and drying to gas, and vibration motor is kept away with ultrasonic wave shake plate Exempt to condense dry indoor part frosting influence using effect, the equipment used needed for subsequent adsorbtion process can be simplified above, from And single unit system is made to simplify, volume reduces, convenient transportation, and realization goes to receive between town and country with Container Transport to each biogas collection point Collect simultaneously purifying biogas.
Description of the drawings
Fig. 1 is schematic structural view of the invention.
Fig. 2 is that the present invention gets rid of drop device structural schematic diagram.
Fig. 3 is centrifugal drying of the present invention drop plug enlarged drawing.
Fig. 4 gets rid of drop device internal liquid for the present invention and moves towards schematic diagram.
Fig. 5 is hothouse tracheae coil arrangement schematic diagram of the present invention.
Fig. 6 is that hothouse tracheae of the present invention combines vibrations frame schematic diagram.
Wherein, reference numeral is：1, tank body；2, partition board；3, it is open；4, inlet chamber；5, air inlet pipe；6, baffle；7, it ventilates Hole；8, by-pass filtration liquid pool；9, it dissipates and starts；10, secondary filtration liquid pool；11, ultrasonic transducer；12, level-one liquid-adding cell；13、 Two level liquid-adding cell；14, liquid box is connect；15, water pump；16, drainage tube；17, solar charging panel；18, observation window；21, velocity-reducing chamber； 22, velocity-reducing chamber air inlet pipe；23, velocity-reducing chamber baffle；24, air-dispersing layer；30, drop device is got rid of；31, holder；32, centrifugal drying drop plug；33, hair Brush；34, drop device water pump is got rid of；35, driving mechanism；36, mobile jib；37, cross bar；41, block is got rid of；42, conical plug；43, connecting rod is centrifuged； 44, rod set；51, hothouse partition board；52, hothouse tracheae；53, stomata；54, semiconductor cooling condenser, 55, water conservancy diversion catheter；60、 Ultrasonic wave shake plate；61, frame is shaken；62, vibration motor.
Specific implementation mode
For traditional methane purification be all by CO2 emission to air and problem that single unit system is larger, this Invention provides a kind of marsh gas pretreatment unit.
Embodiment one：
It is pretreated as methane purification the present invention provides a kind of methane purification two-stage filter referring to Fig. 1 to Fig. 6 Primary filter in journey, including filtering tank, filtering tank are connected with biogas air collector, and natural pond is collected from biogas air collector Biogas in biogas air collector is usually extracted out with wind turbine, is squeezed into filtering tank, filtering tank includes tank body 1, is set in tank body 1 by gas It is equipped with the partition board 2 for separating about 1 tank body, there are openings 3 at partition board 2 middle part；Partition board 2 is tilted along opening 3 to both sides, at inverted " V " Font, 2 upper surface of partition board are the cambered surface that middle part raises up, and 2 both sides of partition board are provided with diversion trench, velocity-reducing chamber is arranged on partition board 2 21, velocity-reducing chamber 21 be one for biogas by and reach the chamber of deceleration purpose wherein, opening 3 and the air inlet of velocity-reducing chamber 21 are logical Road is connected to.Inlet chamber 4 is arranged in 1 bottom of tank body, and 4 upside setting by-pass filtration room of inlet chamber, secondary filtration is arranged in 2 top of partition board Room；It is provided with baffle maze 6 and disc type air inlet pipe 5 in inlet chamber 4, is provided with above secondary filtration room and gets rid of drop device 30 and holder 31,31 both ends of holder are fixedly connected with 1 inner wall of tank body, are got rid of drop device 30 and are connect with holder 31, the central axis in tank body 1 is arranged On.Include horizontally disposed hothouse partition board 51 in tank body 1, hothouse partition board 51 is arranged above secondary filtration room, with tank body 1 Inner wall is fixedly connected, 51 upside setting condensation hothouse of hothouse partition board.
Velocity-reducing chamber 21 includes velocity-reducing chamber air inlet pipe 22, and velocity-reducing chamber air inlet pipe 22 is spiral shape, passes through velocity-reducing chamber baffle 23, subtracts Fast chamber baffle 23 is staggered in velocity-reducing chamber 21, and only one end is fixedly connected with the inner wall of velocity-reducing chamber 21,21 bottom of velocity-reducing chamber Portion is connect with partition board 2, and air-dispersing layer 24 is arranged in top, and opening 3 is connected to the inlet end of velocity-reducing chamber air inlet pipe 22, velocity-reducing chamber air inlet pipe 22 other end is closed, and gas vent is distributed on the tube body of velocity-reducing chamber air inlet pipe 22；In order to gather the gas of by-pass filtration room, institute Partition board 2 is arranged into inverted " v " shape, and so that gas is flowed out by the opening 3 that its middle part is arranged, but can therefore structure lead Gas flow rate is caused to accelerate, so the 3 upside setting velocity-reducing chamber 21 of opening in partition board 2 slows down the gas of acceleration again, to ensure The filter effect of gas.
The air inlet pipe 5 being arranged in inlet chamber 4 is spiral disc type air inlet pipe and baffle 6, baffle 6 is passed through to only have one end and air inlet The cavity wall of chamber 4 connects, and what about 6 baffle interlocked is set in inlet chamber 4, and baffle 6 is by grid framework and is set in frame Modified clinoptilolite forms, and modified clinoptilolite plays the role of adsorbent.Air inlet pipe 5 passes through baffle 6,4 outside of inlet chamber to set Air inlet is set, air inlet one end is connected to biogas air collector, and the other end connects threeway, the other both ends of threeway, one end and air inlet pipe 5 Connection, the other end are passed directly into inlet chamber 4；Gas vent is distributed in air inlet pipe 5, several ventholes are arranged in 4 top of inlet chamber 7；Because biogas is slowly generated by chemical reaction, itself the interior pressure of air collector for usually collecting biogas is very small, Therefore need by wind turbine by air collector biogas extract out, it is contemplated that in order to improve biogas by-pass filtration effect, pass through The inlet chamber of special construction slows down the biogas of entrance, and biogas is entered after threeway by air inlet and is divided into two parts, and one Part enters air inlet pipe 5, and another part is then directly entered in inlet chamber 4, will also function to slowing effect into gas distribution herein, Biogas into air inlet pipe 5, during advance, from the gas vent discharge on tube body, and because air inlet pipe 5 is spiral shape, So the biogas direction of discharge is irregular；On the other hand, the biogas for the inlet chamber 4 being directly entered, in the effect of baffle 6 Under, speed reduces, while with the abnormal flow that is discharged in air inlet pipe 5 to biogas collide, speed further decreases, by baffle Adsorbent in 6 carries out preliminary absorption, and wherein the foreign gases such as nitrogen are first by a preliminary absorption part, later via inlet chamber The venthole 7 at 4 tops enters in by-pass filtration room.
By-pass filtration room is provided with by-pass filtration liquid pool 8, and by-pass filtration liquid pool 8 is set to 4 upside of inlet chamber, by-pass filtration Gas blow head 9 is arranged in 8 bottom of liquid pool, and gas blow head 9 is connect with the venthole 7 at 4 top of inlet chamber by tracheae；Gas blow head 9 is cylinder Fine and closely woven aperture is distributed in shape thereon, and the alkali resistant materials such as plastics, resin, glass is selected to be made.It plays and disperses the biogas of entrance At the effect of tiny bubble, the effect of gas filtration effect is improved.
Secondary filtration room is provided with the secondary filtration liquid pool 10 being connect with 1 madial wall of tank body, 10 bottom of secondary filtration liquid pool Ultrasonic transducer 11 is set；10 edge of secondary filtration liquid pool is slightly above air-dispersing layer 24.Air-dispersing layer 24 is with gas blow head 9 using same Material make, thereon gather aperture, play the effect of dispersion and mitigation of gases flow velocity.
10 edge of secondary filtration liquid pool is higher than 40 centimeters of 24 surface of air-dispersing layer.
The filtered fluid used in by-pass filtration liquid pool 8 is sodium hydroxide solution, the filtering used in secondary filtration liquid pool 10 Liquid is calcium hydroxide solution.When biogas enters in by-pass filtration liquid pool 8, hydrogen sulfide therein and carbon dioxide and filtering Liquid reaction is absorbed.
Secondary filtration liquid pool 10 is annular, and ultrasonic transducer 11 is arranged four, is evenly distributed in secondary filtration liquid pool 10 Bottom.Via the upward gas of by-pass filtration liquid pool when reaching partition board 2, then gather to opening in the middle part of it along the direction of partition board 2 At mouth 3.Enter the upper space of partition board 2 from opening.Ultrasonic transducer 11 is by the calcium hydroxide in secondary filtration liquid pool 10 The calcium hydroxide solution of solution atomization, atomization will overflow secondary filtration liquid pool 10, with from partition board 2 opening in out biogas into Row reaction, because it is the calcium hydroxide of atomization, and also loop configuration can ensure the calcium hydroxide solution being atomized from annular center Opening concentration is fallen, and biogas is to be gathered to be discharged using after the deceleration of velocity-reducing chamber 21 by opening 3, therefore can play well again To carbon dioxide absorption effect.
1 side wall of tank body of 10 top of secondary filtration liquid pool is provided with the observation window it is observed that secondary filtration liquid pool 10 18.The liquid situation of secondary filtration liquid pool 10 is observed that by observation window 18, because calcium carbonate is white precipitate, bicarbonate Calcium is colourless with calcium hydroxide solution, so the use of the liquid in initial stage secondary filtration liquid pool 10 being colourless in calcium hydroxide solution , when using a period of time after have white precipitate, when white precipitate is gradually reduced to it is no when, illustrate inside filtered fluid Substantially calcium bicarbonate solution is had been changed to, byproduct can be regarded and taken out, then add new calcium hydroxide makes as filtered fluid With.
It includes the driving mechanism 35 being made of motor and gear to get rid of drop device 30, and driving mechanism 35 connects the mobile jib for getting rid of drop device 30 36, the central axis of mobile jib 36 is provided with connecting rod, and rest part is hollow, and connecting rod passes through the drive shaft of holder 31 and driving mechanism 35 Connection；36 both sides of mobile jib are symmetrical arranged 24 cross bars 37, and per side 12, cross bar 37 is hollow pipe, and with the inside of mobile jib 36 Connection；The outboard end setting centrifugal drying of cross bar 37 drips plug 32；
32 outside of centrifugal drying drop plug, which is arranged, gets rid of block 41, and the cone bottom for getting rid of 41 inside of block and conical plug 42 and the one end for centrifuging connecting rod 43 are consolidated Fixed connection, the setting of centrifugation connecting rod 43 are plugged in 42 both sides of conical plug, the other end of centrifugation connecting rod 43 in rod set 44, centrifuge connecting rod It is connected by spring between 43 and rod set 44, rod set 44 is fixedly connected with the outboard end of cross bar 37；
The promising mobile jib 36 for getting rid of drop device 30 of setting provides the liquid supply pipe of liquid in holder 31, and drop device water pump 34 is got rid of in liquid supply pipe connection, The setting of its water outlet is arranged in 36 upside of mobile jib, water inlet end in 10 bottom of secondary filtration liquid pool.By getting rid of drop device water pump 34 by two Filtered fluid in grade filtering liquid pool 10 is drawn into mobile jib 36, then under the action of driving mechanism 35, is got rid of drop device 30 and is rotated, when After rotating speed improves, the block 41 that gets rid of of centrifugal drying drop plug 32 is moved to the outside for getting rid of drop device 30 under the influence of centrifugal force, drives it The conical plug 42 of inside is detached from cross bar 37, and the filtered fluid inside the process mobile jib 36 of rotation is thrown out of via cross bar 37, gets rid of The filtered fluid gone out impinges upon the vertex of a cone of conical plug 42, because of the relationship of vertex of a cone shape, shock makes filtered fluid be dispersed into droplet, from And expand the area that liquid is thrown away；Liquid is dispersed into drop, compares the atomizing effect of atomizer, the volume of this drop compared with Greatly, it is used in combination with atomization filtered fluid, carbon dioxide absorption effect is more preferable.The drop thrown away is either got rid of to secondary filtration liquid pool In 10, still gets rid of to the partition board 2 of lower section, can be re-used.
By-pass filtration liquid pool 8 and 12 bottom of level-one liquid-adding cell for being set to 1 outside of tank body are interconnected, secondary filtration liquid pool 10 are connected to 13 bottom of two level liquid-adding cell for being set to 1 outside of tank body, and a two level liquid-adding cell is provided with head cover.Outside by tank body 1 One two level liquid-adding cell of side, it is observed that the amount of solution in a secondary filtration liquid pool is how many, and can conveniently from here The solution needed is added or extracted out into a secondary filtration liquid pool.Head cover prevents dust debris etc. from falling into a secondary filtration liquid pool In.
Partition board 2 connects liquid box 14 with setting below the junction of tank body 1.The biogas for entering secondary filtration room via partition board 2, with Become calcium carbonate after the calcium hydroxide reaction of atomization, because calcium carbonate is heavier, the upper surface of partition board 2 can be dropped down onto, and carbon Sour calcium will continue to become calcium bicarbonate with carbon dioxide reaction.This external partition 2 centered on opening, to tank body 1 side wall at fall " V " font tilts, and 2 upper surface of partition board is cambered surface, can be along partition board 2 after calcium carbonate or calcium bicarbonate run up to a certain amount of Diversion trench flows down, into connecing in liquid box 14.
10 upside of secondary filtration liquid pool is provided with water pump 15, and water pump 15 connects drainage tube 16, the setting of 16 water inlet end of drainage tube In connecing 14 bottom of liquid box, water outlet is placed in 10 top of secondary filtration liquid pool.Connect the carbonic acid for having in liquid box 14 and being collected from partition board 2 Calcium and calcium bicarbonate, tosca are connecing 14 bottom of liquid box in bottom, the inlet segment setting of drainage tube 16, can be by calcium carbonate Solution is withdrawn by water pump 15 in secondary filtration liquid pool 10, because calcium carbonate can the reaction was continued becomes bicarbonate with carbon dioxide Calcium, so being atomized the filtered fluid use that may continue as carbon dioxide via ultrasonic transducer 11.Via ultrasonic transducer 11 atomizations are used as the filtered fluid of carbon dioxide.Can so calcium hydroxide solution be made to make full use of.Finally recycle bicarbonate Calcium solution is as byproduct.
Condensation hothouse in be provided with 52 hothouse tracheae 52 of hothouse tracheae be coil pipe, both ends both pass through hothouse every Plate 51 extends in secondary filtration room, and both ends extend to the indoor part of secondary filtration and are set as horn mouth, hothouse tracheae 52 Stomata 53 is distributed on tube body, semiconductor cooling condenser 54 is arranged in both sides.In the indoor biogas of secondary filtration because of hothouse partition board 51 blocking can only be extended to the indoor horn mouth of secondary filtration by hothouse tracheae 52 and be entered, and hothouse tracheae 52 is Stomata 53 is distributed in coil pipe thereon, and is simultaneously from both ends air inlet, so two strands of gases in hothouse tracheae 52 meet it After will uniformly from stomata 53 be discharged, form one uniform air-flow.Under the refrigeration effect of semiconductor cooling condenser 54, lead to Cross wet gas in biogas can because the effect of semiconductor condenser 54 is to condense, achieved the purpose that with this it is dry, after convenient The progress of continuous biogas treatment.Hothouse diversion trench is provided on hothouse partition board 51, the liquid of condensation is along hothouse diversion trench It is flowed into hothouse diversion pipe in the secondary filtration liquid pool 10 of lower section.52 disk of hothouse tracheae is led at circle, circle centre position setting Conductance tracheae 55, water conservancy diversion gas-guide tube 55 are extended to across hothouse partition board 51 in secondary filtration liquid pool 10.Even if because temperature drops Low relationship leads to have the liquid of partial condensation to appear in hothouse tracheae 52, enter biogas under the action of, directly via Water conservancy diversion gas-guide tube 55 enters secondary filtration liquid pool 10.It is put away together Deng when recycling the liquid in secondary filtration liquid pool 10 .
Semiconductor cooling condenser 54 is provided with ultrasonic wave shake plate 60 on one side towards hothouse tracheae 52；Ultrasonic wave shake plate 60 is produced Raw ultrasonic vibration can condense frosting to avoid 54 surface of semi-conductor condensation device because of wet gas, dry to influence refrigeration effect Tracheae 52 upside in room is provided with vibrations frame 61, and vibrations frame 60 includes horizontally disposed cross bar and the upright bar group in cross bar both sides is arranged At door type frame, upright bar is fixedly connected on hothouse partition board 51, and protrusion, cross bar upper table is distributed in the cross bar lower surface of vibrations frame 61 Vibration motor 62 is provided at the center of face, cross bar is made of elastic material.Vibrations pass to vibrations frame after vibration motor 62 is opened 60 cross bar, because cross bar is made of elastic material, cross bar amplifies vibrating effect, and vibrations pass to cross bar lower surface Protrusion, by the lasting vibrations hothouse tracheae 52 of protrusion, to avoid liquid from being attached to 52 inner wall of hothouse tracheae for a long time, Lead to frosting, influences gas and pass through.
Vibrations frame 60 also can form jolting plate by the parallel connection of multiple door type frames, to increase vibrations area, reinforce vibrations Effect.
1 upper surface of tank body connects solar charging panel 17, and solar charging panel 17 connects accumulator, is electrically connected with water pump.
The preparation method for the modified clinoptilolite adsorbent applied in the utility model methane pretreatment apparatus：
Natural clinoptilolite produces for Changbai Mountain, and the main chemical compositions of natural clinoptilolite are：
Component SiO2 MgO Fe2O3 Na2O TiO2 K2O Al2O3 MnO CaO
Content % 66.6 1.94 2.52 0.91 0.55 1.11 12.34 0.12 4.25
Natural clinoptilolite is cleaned with 40-60 DEG C of distilled water first, dries diel at 80 DEG C.Then with a concentration of 6-8h is impregnated in the hydrochloric acid solution of 0.1mol/l, is washed with distilled water 6-8 times,
Dynamic ion-exchange is carried out to zeolite in ion exchange column, is exchanged with the CaCl2 solution of 1mol/l first at 70 DEG C 2h is exchanged 2 times, is then washed with deionized 2-3 times, and zeolite continues the KCl solution at 70 DEG C with 1mol/l and exchanges 2h, hands over It changes 1 time, is then washed with deionized 2-3 times, then zeolite continues the NH4Cl solution exchange 4h with 1mol/l at 70 DEG C, It exchanges 2 times, is then washed with deionized 2-3 times, finally by zeolite under vacuum with the heating rate liter of 10 DEG C/min Then temperature is cooled to 140-150 DEG C of calcining 20- to 8-15min is calcined at 200-220 DEG C with the rate of temperature fall of 5 DEG C/min 25min is finally warming up to 260-270 DEG C of calcining 90-120min with the heating rate of 10 DEG C/min, obtains modified oblique hair boiling Stone.
Contrast and application test
Adsorbent N2 adsorbances under 1 atmospheric pressure（mmol/g） CH4 adsorbances under 1 atmospheric pressure（mmol/g） The ratio between N2 and CH4 adsorbances
Control group natural clinoptilolite adsorbent 0.1823 0.1204 1.51
Modified clinoptilolite adsorbent 0.8929 0.1782 5.01
As can be known from the results, modified clinoptilolite increases the adsorbance of nitrogen and methane, but nitrogen before modified It is 1.51 with the ratio between the adsorbance of methane, the ratio between the adsorbance of modified nitrogen and methane is 5.01, far more than nitrogen before modified The ratio between the adsorbance of gas and methane be it is unmodified before 3.32 times.Therefore modified clinoptilolite is adsorbed as nitrogen selective Agent is used for pressure-variable adsorption separation of nitrogen/methane improvement with obvious effects, can be as the high selection of pressure-variable adsorption separation of nitrogen, methane Property adsorbent.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.

Claims (10)

1. a kind of methane purification two-stage filter, including filtering tank, the filtering tank are connected with biogas air collector, special Sign is that the filtering tank includes tank body（1）, the tank body（1）It is inside provided with the tank body（1）The partition board separated up and down （2）, the partition board（2）Middle part is provided with opening（3）, periphery and the tank body（1）Inner wall be fixedly connected, the partition board（2） Upper setting velocity-reducing chamber（21）, the opening（3）With the velocity-reducing chamber（21）Inlet channel connection；The tank body（1）Bottom is set Set inlet chamber（4）, the inlet chamber（4）By-pass filtration room, the partition board is arranged in upside（2）Secondary filtration room is arranged in top；Institute State inlet chamber（4）Inside it is provided with baffle maze（6）And the air inlet pipe of disc type（5）；It is provided with and gets rid of above the secondary filtration room Drip device（30）With holder（31）, the holder（31）Both ends and the tank body（1）Inner wall is fixedly connected, described to get rid of drop device（30）With The holder（31）Connection is arranged in the tank body（1）Central shaft on；The tank body（1）Interior includes horizontally disposed drying Room partition board（51）, the hothouse partition board（51）It is arranged above the secondary filtration room, with the tank body（1）Inner wall, which is fixed, to be connected It connects, the hothouse partition board（51）Upside setting condensation hothouse；The velocity-reducing chamber（21）Bottom and the partition board（2）Connection, Air-dispersing layer is arranged in top（24）；
The inlet chamber（4）The interior baffle maze（6）Only one end and the inlet chamber（4）Cavity wall connection, it is described Air inlet pipe（5）For spiral shape and pass through the baffle maze（6）, the inlet chamber（4）Air inlet, the air inlet is arranged in outside Mouth one end is connected to the biogas air collector, and the other end connects threeway, the other both ends of threeway, one end and the air inlet pipe （5）Connection, the other end are passed directly into the inlet chamber（4）It is interior；The air inlet pipe（5）On gas vent, the inlet chamber is distributed with （4）Several ventholes are arranged in top（7）；
The by-pass filtration room is provided with by-pass filtration liquid pool（8）；
The secondary filtration room is provided with and the tank body（1）The secondary filtration liquid pool of madial wall connection（10）, the two level mistake Reservoir（10）Ultrasonic transducer is arranged in bottom（11）；The secondary filtration liquid pool（10）Edge is higher than the air-dispersing layer （24）；
It is provided with hothouse tracheae in the condensation hothouse（52）, the hothouse tracheae（52）For coil pipe, both ends are worn Cross the hothouse partition board（51）It extends in the secondary filtration room, both ends extend to the indoor part of the secondary filtration and set It is set to horn mouth, the hothouse tracheae（52）Stomata is distributed on tube body（53）, semiconductor cooling condenser is arranged in both sides（54）；Institute State semiconductor cooling condenser（54）Towards the hothouse tracheae（52）Be provided with ultrasonic wave shake plate on one side（60）；The hothouse Tracheae（52）Upside is provided with vibrations frame（61）, the vibrations frame（61）Including horizontally disposed cross bar with setting in the cross bar The upright bar of both sides forms door type frame, and the upright bar is fixedly connected on the hothouse partition board（51）On, the vibrations frame（61）'s Protrusion is distributed in the cross bar lower surface, and the cross bar upper surface is provided with vibration motor at center（62）, the cross bar bullet Property material is made.
2. methane purification two-stage filter according to claim 1, which is characterized in that the velocity-reducing chamber（21）Including Velocity-reducing chamber air inlet pipe（22）, the velocity-reducing chamber air inlet pipe（22）For spiral shape, velocity-reducing chamber baffle is passed through（23）, the velocity-reducing chamber gear Plate（23）It is staggered in the velocity-reducing chamber（21）It is interior, and only one end and the velocity-reducing chamber（21）Inner wall be fixedly connected, institute State velocity-reducing chamber（21）Bottom and the partition board（2）Air-dispersing layer is arranged in connection, top（24）, the opening（3）With the velocity-reducing chamber Air inlet pipe（22）Inlet end connection, the velocity-reducing chamber air inlet pipe（22）The other end closing, the velocity-reducing chamber air inlet pipe（22） Tube body on gas vent is distributed with.
3. methane purification two-stage filter according to claim 1, which is characterized in that the by-pass filtration Room is provided with by-pass filtration liquid pool（8）, the by-pass filtration liquid pool（8）It is set to the inlet chamber（4）Upside, the level-one mistake Reservoir（8）Gas blow head is arranged in bottom（9）, the gas blow head（9）With the inlet chamber（4）The venthole at top（7）It is logical Cross tracheae connection.
4. methane purification two-stage filter according to claim 1, which is characterized in that described to get rid of drop device（30）Including The driving mechanism being made of motor and gear（35）, the driving mechanism（35）Drop device is got rid of described in connection（30）Mobile jib（36）, The mobile jib（36）Central axis be provided with connecting rod, rest part is hollow, the connecting rod pass through the holder（31）With it is described Driving mechanism（35）Driving axis connection；The mobile jib（36）Both sides are symmetrical arranged several cross bars（37）, the cross bar（37） For hollow pipe, and with the mobile jib（36）Inside connection；The cross bar（37）Outboard end setting centrifugal drying drip plug（32）.
5. methane purification two-stage filter according to claim 4, which is characterized in that the centrifugal drying drop plug（32） Block is got rid of in outside setting（41）, described to get rid of block（41）Inside and conical plug（42）Cone bottom and centrifugation connecting rod（43）One end fix connect It connects, the centrifugation connecting rod（43）It is arranged in the conical plug（42）Both sides, the centrifugation connecting rod（43）The other end be plugged on bar Set（44）In, the centrifugation connecting rod（43）With the rod set（44）Between connected by spring, the rod set（44）With the cross Bar（37）Outboard end be fixedly connected；The holder（31）Drop device is got rid of described in interior setting is promising（30）The mobile jib（36）It provides Drop device water pump is got rid of in the liquid supply pipe of liquid, the liquid supply pipe connection（34）, water outlet is arranged in the mobile jib（36）Upside, water inlet End is arranged in the secondary filtration liquid pool（10）Bottom.
6. methane purification two-stage filter according to claim 1, which is characterized in that the baffle maze（6） What is interlocked up and down is set to the inlet chamber（4）It is interior, the baffle maze（6）For grid framework, the interior setting of the frame changes Property clinoptilolite adsorbent.
7. methane purification two-stage filter according to claim 1, which is characterized in that the by-pass filtration liquid pool （8）Be set to the tank body（1）The level-one liquid-adding cell in outside（12）Bottom is interconnected, the secondary filtration liquid pool（10）With It is set to the tank body（1）The two level liquid-adding cell in outside（13）Bottom is connected to, and the two level liquid-adding cell is provided with head cover.
8. methane purification two-stage filter according to claim 1, which is characterized in that the partition board（2）With it is described Tank body（1）Junction below setting connect liquid box（14）；The partition board（2）Along the opening（3）It is tilted to both sides, at inverted " V " Font, the partition board（2）Upper surface is central raised cambered surface, the partition board（2）Both sides are provided with diversion trench.
9. methane purification two-stage filter according to claim 5, which is characterized in that the secondary filtration liquid pool （10）Upside is provided with water pump（15）, the water pump（15）Connect drainage tube（16）, the drainage tube（16）Water inlet end is set to It is described to connect liquid box（14）Bottom, water outlet are placed in the secondary filtration liquid pool（10）Top.
10. according to claim 1-9 any one of them methane purification two-stage filters, which is characterized in that the modification The preparation method of clinoptilolite adsorbent：
Natural clinoptilolite zeolite is cleaned with 40-60 DEG C of distilled water first, dries diel at 80 DEG C;
Then 6-8h is impregnated in the hydrochloric acid solution of a concentration of 0.1mol/l, is washed with distilled water 6-8 times,
Dynamic ion-exchange is carried out to zeolite in ion exchange column, is exchanged with the CaCl2 solution of 1mol/l first at 70 DEG C 2h is exchanged 2 times, is then washed with deionized 2-3 times, and zeolite continues the KCl solution at 70 DEG C with 1mol/l and exchanges 2h, hands over It changes 1 time, is then washed with deionized 2-3 times, then zeolite continues the NH4Cl solution exchange 4h with 1mol/l at 70 DEG C, It exchanges 2 times, is then washed with deionized 2-3 times, finally by zeolite under vacuum with the heating rate liter of 10 DEG C/min Then temperature is cooled to 140-150 DEG C of calcining 20- to 8-15min is calcined at 200-220 DEG C with the rate of temperature fall of 5 DEG C/min 25min is finally warming up to 260-270 DEG C of calcining 90-120min with the heating rate of 10 DEG C/min, obtains modified oblique hair boiling Stone.
CN201810227321.3A 2016-01-28 2016-01-28 A kind of methane purification two-stage filter Pending CN108325367A (en)

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Application publication date: 20180727