CN105779022B - Cyclone separator and gas-liquid solid separation system - Google Patents

Cyclone separator and gas-liquid solid separation system Download PDF

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Publication number
CN105779022B
CN105779022B CN201610136938.5A CN201610136938A CN105779022B CN 105779022 B CN105779022 B CN 105779022B CN 201610136938 A CN201610136938 A CN 201610136938A CN 105779022 B CN105779022 B CN 105779022B
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Prior art keywords
gas
shell
riser
cyclone separator
cyclone
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CN105779022A (en
Inventor
李志祥
周鹏
薛振欣
冯长志
陈峻贤
刘强
李雪冰
刘柱元
刘泽
赵旭清
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Guoneng Baotou Coal Chemical Co ltd
China Shenhua Coal to Liquid Chemical Co Ltd
China Shenhua Energy Co Ltd
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China Shenhua Coal to Liquid Chemical Co Ltd
China Shenhua Energy Co Ltd
Shenhua Baotou Coal Chemical Industry Co Ltd
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Priority to CN201610136938.5A priority Critical patent/CN105779022B/en
Publication of CN105779022A publication Critical patent/CN105779022A/en
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    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10KPURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
    • C10K1/00Purifying combustible gases containing carbon monoxide
    • C10K1/02Dust removal
    • C10K1/026Dust removal by centrifugal forces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D45/00Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/02Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising gravity
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D45/00Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/12Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D50/00Combinations of methods or devices for separating particles from gases or vapours
    • B01D50/40Combinations of devices covered by groups B01D45/00 and B01D47/00
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10KPURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
    • C10K1/00Purifying combustible gases containing carbon monoxide
    • C10K1/002Removal of contaminants
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10KPURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
    • C10K1/00Purifying combustible gases containing carbon monoxide
    • C10K1/08Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors
    • C10K1/10Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Cyclones (AREA)

Abstract

The present invention provides a kind of cyclone separator and gas-liquid solid separation systems, wherein cyclone separator includes:There is gas vent (102), the lower part of first shell (101) there is solidliquid mixture to export (103) on the top of first shell (101), first shell (101);Feeding inlet structure (104) is arranged on the top of first shell (101);Riser (106), setting is in first shell (101), the inside of riser (106) is connected to gas vent (102), disengagement chamber is formed between riser (106) and first shell (101), and there is flow structure (107) in the circumferential side wall of riser (106).Technical scheme of the present invention can efficiently solve the bad problem of raw gas purifying effect in the prior art.

Description

Cyclone separator and gas-liquid solid separation system
Technical field
The present invention relates to gas-liquid-solid separation technology fields, are detached in particular to a kind of cyclone separator and gas-liquid-solid System.
Background technology
Currently, coal water slurry gasification is the important link of coal producing light olefins industry, Nitrogenous Fertilizer Industry and coal liquifaction industry etc..Water The raw gas that coal slurry gasification generates is typically passed through chilling process primary wash, cooling and gas-liquid-solid separation.It is light after separation Component raw gas is sent to follow-up workshop section.Since coal water slurry gasification usually carries out in gasification furnace combustion chamber, raw gas can carry winged Ash, slag are directly entered shock chamber, this results in the indoor water quality of Quench poor, and the impurity such as a large amount of flying dusts are carried secretly with raw gas Moisture enter in scrubbing tower through venturi, and then affect the water quality in scrubbing tower and scrubbing tower top exit purified gas Cleannes.Meanwhile inevitably can also there are some impurity, the liquid phase part in the relatively clean liquid phase part of wash tower bottoms It is sent to chilling ring of gasifying furnace after Quench water pump pressure-raising, filter filtering, the raw gas that gasification furnace combustion chamber is come is carried out preliminary Washing, cooling.Therefore, in the water cycle process of gasification, since raw gas purifying is not thorough, it often will appear chilled water filtering The phenomenon that device blocks, chilling ring fouling is serious, system resistance drop rapid increase, is unable to stability contorting, even so as to cause production Destroy the balance of grey water treatment system.
In addition, raw gas made from coal water slurry gasification generally goes through shock chamber, syngas outlet spray, Venturi scrubbing Fed downstream process after device, scrubbing tower water-bath and demister Pyatyi cleaning dust.Coal Gasification water consumption is larger, and gasify water system It is usually maintained in higher internal circulating load.However, although raw gas have passed through multistage washing, purifying, coal gas band water band ash can not be kept away Exempt from, this results in needing to be continuously replenished outside battery limit (BL) fresh water to maintain the balance of water system, therefore, improves system water quality to closing weight It wants.
There is a kind of gas washing purification technique in the prior art.The main implementation steps of the technique are as follows:Washings follow Ring pump send a part of Heisui River pressurization come from scrubbing tower Heisui River storage tank to Venturi scrubber, is mixed with from out-of-bounds raw gas It closes, enters after the solid particles such as the lime-ash carried secretly in raw gas are moistened, bonded and increased by Heisui River in venturi and detach Device carries out level-one washing.Raw gas down-comer in separator flows downward, and most of lime-ash enters in separator bottom liquid phase, The Heisui River of generation is discharged into black water treatment system.Raw gas is ascended into along down-comer and gas-guide tube annular space in scrubbing tower water-bath.Slightly Coal gas is flowed up by water-bath, with from washing water-circulating pump another part Heisui River and external technique moisturizing in scrubbing tower It is inversely contacted on the tower tray of top.Coal gas after two level washing is sent into subsequent conversion by the baffle plate demister on tower tray top Process, the Heisui River that scrubbing tower generates are discharged into black water treatment system.However, the technique, in implementation process, initial stage of coming into operation is because of water quality Good, solid content is few, and Venturi scrubber has preferable spray atomizing and washing effect to raw gas.With the long-time of production It runs, the solid content in wash tower bottoms Heisui River certainly will will increase, and pass it through pump pressurization and send to venturi and will result in blockage Venturi spray apertures cause the pressure drop increase of gasification system and energy consumption to increase.In addition, the increase of wash tower bottoms Heisui River solid content is also It can cause inversely to contact the decline of cleaning dust significant effect at the top of scrubbing tower with coal gas, be unfavorable for the purification of coal gas, longtime running Raw gas is extremely difficult to expected clean-up effect.
In addition, there is also one kind in the prior art passes through main washing, water-bath, secondary washing, rotation in dust-laden raw gas occasion The vertical separator of flow separation combination unit.The above-mentioned vertical separator course of work is:Raw gas enters from gas feed, passes through Entrance inside extending tube in gas feed is mixed with the washings entered from main wash mill, by being washed in central tube Enter gas cylinder after dedusting, comes into full contact with carry out water-bath washing after then eliminating big bubble by bulb-breaking device with washings.Water Raw gas after bath carries out secondary washing, carries out gas-liquid separation by cyclone separator, the raw gas after dedusting is by gas vent Rough coal gas separating device is excluded, dust-laden washings are exported by device bottom through collection cone balling-up and are discharged.But the technique is in reality During applying, because setting washings are more, the higher flow velocity of coal gas, can cause raw gas to carry part dust particale and produce coal in addition Gas outlet, and the pressure drop of separator can be caused to increase, energy consumption increases, and is unfavorable for maintaining the even running of production.
Invention content
The main purpose of the present invention is to provide a kind of cyclone separator and gas-liquid solid separation systems, to solve the prior art In the bad problem of raw gas purifying effect.
To achieve the goals above, according to an aspect of the invention, there is provided a kind of cyclone separator, including:First There is gas vent, the lower part of first shell to be exported with solidliquid mixture on the top of shell, first shell;Feeding inlet structure, It is arranged on the top of first shell;Riser is arranged in first shell, and the inside of riser is connected to gas vent, rises gas Disengagement chamber is formed between pipe and first shell, there is flow structure in the circumferential side wall of riser.
Further, it includes the gap that multiple axial directions along riser extend to cross flow structure.
Further, cyclone separator further includes cooling water tube bank, and the peripheral side in first shell is arranged in cooling water tube bank On wall.
Further, multiple gaps are arranged along the circumferential direction interval of riser.
Further, it is shifted to install between every two adjacent gaps.
Further, it is multiple to cross flow structure, and multiple flow structures of crossing are arranged along the axial direction interval of riser.
Further, it is crossed in flow structure multiple, the density for crossing multiple gaps in flow structure close to riser end Less than the density for crossing multiple gaps in flow structure in the middle part of riser.
Further, feeding inlet structure is two be symmetricly set in first shell circumferential side wall, each feed inlet knot Structure includes arc feeding-passage.
Further, each feeding inlet structure further includes the first charging aperture being arranged in arc feeding-passage end, two The place plane of first charging aperture is arranged in parallel.
Further, feeding inlet structure is that charging is covered, and the circumferential side wall of the inner wall of end and first shell that feed cover is tangent.
Further, cyclone separator further includes the steady whirlpool device being arranged in first shell, steady whirlpool device be located at riser and Between solidliquid mixture outlet, steady whirlpool device includes plate body and is arranged in plate body towards the conical structure on riser side, round Wimble structure includes first conical structure and multiple second conical structures for being arranged around the first conical structure.
Further, cyclone separator further includes the Gas-Rotation-Plate Dust Separator being arranged in first shell, Gas-Rotation-Plate Dust Separator Positioned at the close solidliquid mixture exit end of riser.
Further, cyclone separator further includes the level-one atomizing sprayer being located above Gas-Rotation-Plate Dust Separator.
According to another aspect of the present invention, a kind of gas-liquid solid separation system, including Venturi scrubber, scrubbing tower are provided And primary cyclone, Venturi scrubber are connected to scrubbing tower, primary cyclone is above-mentioned cyclone separator, The gas vent of primary cyclone is connected to by the first pipeline with Venturi scrubber.
Further, gas-liquid solid separation system further includes secondary cyclone, and secondary cyclone includes second shell There is second charging aperture and liquid outlet, the lower part of second shell to have solid outlet, the second charging on the top of body, second shell By the second pipeline and solidliquid mixture outlet, liquid outlet is connected to by third pipeline with the tower tray of scrubbing tower mouth.
Further, gas-liquid solid separation system further includes the static mixer being arranged on the second pipeline.
Further, gas-liquid solid separation system further includes lock hopper collection slag system, lock hopper collection slag system by the 4th pipeline with Solid outlet is connected to.
It applies the technical scheme of the present invention, flow structure was added in the circumferential side wall of riser.It is mixed when to gas-liquid-solid When object (such as raw gas) is purified, above-mentioned gas-liquid-solid mixture first passes through feeding inlet structure and enters in first shell, and It is moved downward along riser outside.During the motion, the part light-component gas in gas-liquid-solid mixture can be by upper It stated flow structure to enter directly into riser, and gas vent is risen to along riser, after being flowed to by gas vent Continuous equipment.Remaining gas-liquid-solid mixture continues on riser and moves downward, and gas and solid-liquid are carried out in disengagement chamber The separation of mixture.The light-component gas separated enters from the lower port of riser and rises to gas vent, heavy constituent Solidliquid mixture sinks down into solidliquid mixture outlet, and by solidliquid mixture outlet stream to follow-up equipment.It is above-mentioned to cross flow structure The part light-component gas in gas-liquid-solid mixture can be made to enter directly into riser, reduce pressure inside cyclone separator Drop, to improve gas-liquid-solid separative efficiency, clean-up effect is more preferable.
Description of the drawings
The accompanying drawings which form a part of this application are used to provide further understanding of the present invention, and of the invention shows Meaning property embodiment and its explanation are not constituted improper limitations of the present invention for explaining the present invention.In the accompanying drawings:
Fig. 1 shows the structural schematic diagram of the embodiment of cyclone separator according to the present invention;
Fig. 2 shows the schematic top plan views of the feeding inlet structure of the cyclone separator of Fig. 1;
Fig. 3 shows the A-A of Fig. 1 to schematic cross-sectional view;
Fig. 4 shows the interior flow field schematic diagram of the cyclone separator of Fig. 1 in the operating condition;
Fig. 5 shows the schematic top plan view of the Gas-Rotation-Plate Dust Separator of the cyclone separator of Fig. 1;
Fig. 6 shows the schematic top plan view of the two level atomizing sprayer of the cyclone separator of Fig. 1;
Fig. 7 shows the interior flow field schematic diagram of the two level atomizing sprayer of Fig. 6 in the operating condition;
Fig. 8 shows the structural schematic diagram of the cone nozzle of the two level atomizing sprayer of Fig. 6;
Fig. 9 shows the structural schematic diagram of the embodiment of gas-liquid solid separation system according to the present invention;
Figure 10 shows the structural schematic diagram of the static mixer of the gas-liquid solid separation system of Fig. 9;
Figure 11 shows the schematic side view of the static mixer of Figure 10;
Figure 12 shows the interior flow field schematic diagram of the static mixer of Figure 10 in the operating condition.
Wherein, above-mentioned attached drawing includes the following drawings label:
101, first shell;102, gas vent;103, solidliquid mixture exports;104, feeding inlet structure;1041, arc Feeding-passage;1042, first charging aperture;105, cooling water is restrained;106, riser;107, flow structure is crossed;1071, gap; 108, steady whirlpool device;1081, plate body;1082, the first conical structure;1083, the second conical structure;109, Gas-Rotation-Plate Dust Separator; 1091, partition board;1092, circular solids plate;110, level-one atomizing sprayer;120, two level atomizing sprayer;1201, annular Spray tube;1201a, condensate inlet;1202, cone nozzle;130, solidliquid mixture sampling analysis point;200, venturi is washed Wash device;300, scrubbing tower;301, tower tray;100, primary cyclone;400, secondary cyclone;401, second shell; 402, second charging aperture;403, liquid outlet;404, solid outlet;405, drain pipe;406, solid-liquor separation baffle;407, it assists Receive slag pipeline;408, scavenging solution sampling analysis point;500, static mixer;501, static mixing entrance;502, static mixing goes out Mouthful;503, water treatment agent entrance;600, lock hopper collection slag system;601, lock hopper collection slag ladle;602, lock hopper collection slag ladle entrance;603, it locks Bucket collection slag ladle slag-drip opening;604, lock hopper collection slag rinses water pot;605, low pressure buck series manifold;606, auxiliary receives pulp pump;607、 High pressure grey water inlet series manifold;700, flash system.
Specific implementation mode
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figure 1, the cyclone separator of the present embodiment is used to purify the raw gas of coal water slurry gasification generation.The whirlwind point Include first shell 101, feeding inlet structure 104 and riser 106 from device.Wherein, the top of first shell 101 has gas There is solidliquid mixture to export 103 for the bottom of outlet 102, first shell 101.Feeding inlet structure 104 is arranged in first shell 101 Top.The setting of riser 106 is in first shell 101 and coaxial with first shell 101.The inside of riser 106 and gas 102 connection of outlet, disengagement chamber is formed between riser 106 and first shell 101.Had in the circumferential side wall of riser 106 Flow structure 107.
Using the cyclone separator of the present embodiment, flow structure 107 was added in the circumferential side wall of riser 106.When right When raw gas is purified, above-mentioned raw gas first passes through feeding inlet structure 104 and enters in first shell 101, and along a liter gas Pipe 106 moves downward.During the motion, the part light-component gas in raw gas can cross flow structure 107 directly by above-mentioned It connects and enters in riser 106, and gas vent 102 is risen to along riser 106, after being flowed to by gas vent 102 Continuous equipment.Remaining raw gas continues on riser 106 and moves downward, and gas and solid-liquid mixing are carried out in disengagement chamber The separation of object.The light-component gas separated enters from the lower port of riser 106 and rises to gas vent 102, recombination Divide solidliquid mixture to sink down into solidliquid mixture outlet 103, and follow-up equipment is flowed to by solidliquid mixture outlet 103.It is above-mentioned Crossing flow structure 107 can be such that the part light-component gas in raw gas enters directly into riser 106, reduce cyclonic separation Device internal pressure drops, to improve gas-liquid-solid separative efficiency, clean-up effect is more preferable.
As depicted in figs. 1 and 2, in the cyclone separator of the present embodiment, feeding inlet structure 104 is to be symmetricly set on first Two of the middle and upper part of 101 circumferential side wall of shell, each feeding inlet structure 104 include arc feeding-passage 1041.In this implementation In example, feeding inlet structure 104 is that charging is covered, and inner wall of end and the circumferential side wall of first shell 101 for feeding cover are tangent.Each into Material mouth structure 104 further includes the first charging aperture 1042 being arranged in 1041 end of arc feeding-passage, and first charging aperture 1042 is rectangular.The place plane of two first charging apertures 1042 is arranged in parallel, i.e., the first charging aperture 1042 of two rectangles It is symmetrically disposed in 101 circumferential side wall of first shell in 180 degree angle.Above structure can improve the rough coal of cyclone separator The treating capacity of gas, and the symmetry of feed inlet air-flow can be improved, to improve the gas-liquid-solid separative efficiency of cyclone separator.
As depicted in figs. 1 and 2, in the cyclone separator of the present embodiment, riser 106 is cylinder.Cross flow structure 107 To be multiple, multiple flow structures 107 of crossing are arranged along the axial direction interval of riser 106.Each flow structure 107 of crossing includes multiple edges The gap 1071 that the axial direction of riser 106 extends.Multiple gaps 1071 are arranged along the circumferential direction interval of riser 106. The narrow and long rectangular fine crack that above-mentioned multiple gaps 1071 are vertically arranged.It is shifted to install between per two adjacent gaps 1071. Multiple to cross in flow structure 107, the density close to the multiple gaps 1071 of 106 end of riser crossed in flow structure 107 is less than position The density for crossing multiple gaps 1071 in flow structure 107 in 106 middle part of riser.I.e. on riser 106, multiple overcurrent knots The distribution trend of " close lower thin in above dredging " is presented in the distribution density in gap 1071 in structure 107, and crosses flow structure 107 and go out with gas Certain distance is all had between mouth 102, solidliquid mixture outlet 103.Above structure can ensure that it is suitable that flow structure 107 has While suitable air inflow, the material stress of riser 106 is not interfered with, keeps 106 intensity of riser reliable.As shown in figure 4, thick Coal gas forms axisymmetric flow field action plane by crossing flow structure 107 in riser 106, and conplane raw gas enters Air-flow in axial direction is formed after riser 106.It should be noted that gap 1071 is not limited to narrow and long rectangular fine crack, scheming In in unshowned other embodiment, gap 1071 can be set to other seam shapes, such as ellipse as needed.
As shown in Figure 1 and Figure 5, in the cyclone separator of the present embodiment, cyclone separator further includes being arranged in first shell Gas-Rotation-Plate Dust Separator 109 in body 101 and level-one atomizing sprayer 110.Wherein, Gas-Rotation-Plate Dust Separator 109 is located at riser 106 close solidliquid mixture exports 103 one end.Level-one atomizing sprayer 110 is located at 109 top of Gas-Rotation-Plate Dust Separator, and And retain between level-one atomizing sprayer 110 and Gas-Rotation-Plate Dust Separator 109 with certain distance.Above-mentioned Gas-Rotation-Plate Dust Separator Several partition boards 1091 are disposed on 109, each partition board 1091 is intersected in the shape of a spiral on central circular solid slab 1092, each partition board Angle between 1091 is in 15 to 30 degree.Partition board 1091 can be arranged as required into 6,8,12,16 etc., and every 1091 place plane of a partition board is horizontal by 5 to 15 degree angles.Level-one atomizing sprayer 110 is located at Gas-Rotation-Plate Dust Separator Right over 109 at 0.5 to 1.5 meter, the top of level-one atomizing sprayer 110 can be nozzle structure, can set as needed Single nozzle, double nozzles or the more nozzles of annular are set to, can also be low-resistance descending liquid body structure of distributor.Above structure is in disengagement chamber The light-component gas of middle separation carries out further dedusting.
As shown in figures 1 and 3, in the cyclone separator of the present embodiment, cyclone separator further includes being arranged in first shell Steady whirlpool device 108 in body 101.Steady whirlpool device 108 is located between riser 106 and solidliquid mixture outlet 103.Steady whirlpool device 108 with There is certain distance between solidliquid mixture outlet 103.Steady whirlpool device 108 includes plate body 1081 and is arranged in 1081 direction of plate body Conical structure on 106 side of riser.Conical structure is including first conical structure 1082 and surrounds the first circular cone knot Multiple second conical structures 1083 that structure 1082 is arranged.Above structure can be further reduced whirlpool, and steady whirlpool effect is more preferable.Work as place When science and engineering skill tolerance is larger, air velocity is very fast, it is miscellaneous that above structure can carry solidliquid mixture etc. to avoid purified gas Matter enters follow-up system.
As shown in figures 1 and 3, in the cyclone separator of the present embodiment, cyclone separator further includes cooling water tube bank 105.First shell 101 includes straight tube degree and conical section.Cooling water tube bank 105 is uniformly arranged on the circumferential side wall of straight tube degree On.Flow of cooling water direction in cooling water tube bank 105 is in the axial direction with raw gas flow direction in adverse current, above-mentioned cooling Water enters from the bottom of straight tube degree, is flowed out from the top of straight tube degree heteropleural.Above-mentioned cooling water is inversely changed with raw gas flow direction Heat, be convenient for solidliquid mixture refrigerated separation from gas, the solidliquid mixture for being conducive to isolate in follow-up system at water Reason agent preferably acts on, while avoiding solidliquid mixture slagging, dross on 101 side wall of first shell.Above-mentioned taper section Solidliquid mixture collecting bin is formed in the part of 108 lower section of steady whirlpool device.Solidliquid mixture outlet 103 is located at the solidliquid mixture and receives The bottom of Ji Cang.The side wall of the solidliquid mixture collecting bin is equipped with remote liquid level transmitter LT, is exported with solidliquid mixture 103 control valve LV hangs with interlocking.Preferably, high pressure nitrogen branch pipe, the height are set between the bivalve of solidliquid mixture outlet 103 Press nitrogen branch pipe as accident treatment active redundancy pipeline.When solidliquid mixture outlet 103 blocks, the is manually or automatically opened Two pass valve on two pipelines, and anti-top blocks substance, wherein high pressure nitrogen repeatedly upwards under the action of high pressure nitrogen branch pipe Pressure ratio cyclone system pressure is 20 to 30 kilograms high.
Present invention also provides a kind of gas-liquid solid separation systems.The gas-liquid solid separation system of the present embodiment can be used for ash It is gasified raw material, the rough coal with entrained flow gasification chilling process to divide the higher coal of content, petroleum coke or solid hydrocarbon Gas purification separation.Above-mentioned gas-liquid solid separation system includes Venturi scrubber 200, scrubbing tower 300 and primary cyclone 100.Venturi scrubber 200 is connected to scrubbing tower 300.Primary cyclone 100 is above-mentioned cyclone separator.Primary rotation The gas vent 102 of wind separator 100 is connected to by the first pipeline with Venturi scrubber 200.
As shown in Fig. 1, Fig. 6 to Fig. 9, in the gas-liquid solid separation system of the present embodiment, gas-liquid solid separation system further includes Two level atomizing sprayer 120.Above-mentioned two level atomizing sprayer 120 is arranged on the first pipeline, and is located at gas vent 102 Top.The two level atomizing sprayer 120 is annular spray equipment, is sprayed with circular spray tube 1201 and with annular Four cone nozzles 1202 in 90 degree of angles that pipe 1201 is connected to, arbitrary two of the vertex of a cone part of cone nozzle 1202 are right Busbar between angle be referred to as 90 degree, naturally it is also possible to for 45 degree, 60 degree of angles differ.Cone nozzle 1202 is inserted into the first pipe A distance in road, is not close to tube wall.Condensate liquid enters circular spray tube 1201 from condensate inlet 1201a, wherein condensing Liquid entrance 1201a can be single, two or four etc..Condensate liquid forms flow field from four ejections of cone nozzle 1202.On Moistening gas can be fully atomized by stating structure, purified and removed when entering follow-up system (such as Venturi scrubber) convenient for purified gas Dirt.
As shown in figure 9, in the gas-liquid solid separation system of the present embodiment, gas-liquid solid separation system further includes secondary cyclone point From device 400.Secondary cyclone 400 includes second shell 401.The top of second shell 401 has 402 He of second charging aperture Liquid outlet 403.Drain pipe 405 is provided in second shell 401, the top of drain pipe 405 is connected to liquid outlet 403.The The lower part of two shells 401 has solid outlet 404.Second charging aperture 402 is connected by the second pipeline and solidliquid mixture outlet 103 It is logical.Liquid outlet 403 is connected to by third pipeline with the tower tray 301 of scrubbing tower 300.Gas-liquid solid separation system further includes static mixed Clutch 500 and lock hopper collection slag system 600.Wherein, static mixer 500 is arranged on the second pipeline.Lock hopper collection slag system 600 is logical The 4th pipeline is crossed to be connected to solid outlet 404.
Raw gas is detached by the primary purifying of primary cyclone 100, and light-component gas is from 102 scripture of gas vent Washer 200 enters scrubbing tower 300 in mound.The heavy constituent solidliquid mixture that primary is isolated through solidliquid mixture outlet 103 into The static mixer 500 for entering and being arranged on the second pipeline.Solidliquid mixture pass through in static mixer 500 with water treatment agent Chemical action and physical separation in secondary cyclone 400 after, most of solid phase components fall into second shell 401 Bottom ash bucket, and be discharged into lock hopper collection slag system 600 through solid outlet 404;Purified liquid phase component is through drain pipe 405 Liquid outlet 403 is risen to, if sending to making tower tray moisturizing on the dried layer tower tray 301 positioned at 300 middle and upper part of scrubbing tower.
As shown in Fig. 9 to Figure 12, in the gas-liquid solid separation system of the present embodiment, static mixer 500 is solid-liquid mixing Object and water treatment agent are sufficiently mixed place, are forward-reverse spiral structure, with static mixing entrance 501, static mixing goes out Mouth 502 and water treatment agent entrance 503, water treatment agent entrance 503 are located at the top of static mixing entrance 501, contribute in this way The comprehensive immixture of flow at high speed liquid and water treatment agent.Static mixing outlet 502 and the of secondary cyclone 400 Two feed inlets 402 are connected.Water treatment agent enters in static mixer 500 from water treatment agent entrance 503 and is filled with solidliquid mixture Mixing is divided to chemically react.
As shown in figure 9, in the gas-liquid solid separation system of the present embodiment, the second charging aperture of secondary cyclone 400 402 are arranged on the middle and upper part side wall of second shell 401.Preferably, second charging aperture 402 is arranged in second shell 401 In upper portion side wall and inlet tube slopes slightly downward 3 to 10 degree.Drain pipe 405 is cylinder, the drain pipe 405 and second shell 401 coaxial arrangements.Solid-liquor separation baffle 406 is provided at a distance of the underface of the lower port of drain pipe 405.Bottom Ash bucket is located at the underface of above-mentioned solid-liquor separation baffle 406.The bottommost in second shell 401 is arranged in solid outlet 404.Liquid Outlet 403 is located at the surface of drain pipe 405.Cooling water tube bank, the cooling water are again provided on secondary cyclone 400 Tube bank is arranged on the surrounding side wall of second shell 401, and such purpose is to keep the temperature of liquid phase component after purification more suitable It is suitable for the tower tray moisturizing of tower tray 301, while avoids increasing pressure drop and energy consumption because of slagging inside secondary cyclone 400. In addition, secondary cyclone 400, which further includes the auxiliary being arranged on the ash bucket side wall of bottom, receives slag pipeline 407.In secondary cyclone For separator 400 under 601 connected state of lock hopper collection slag ladle, receiving slag pipeline 407 by auxiliary receipts pulp pump 606 and auxiliary can be from lock Bucket is sent after collecting 601 top sucking buck pressurization of slag ladle to the ash bucket of bottom, loosens hopper bottom solid matter, promotion to play Circular fluidic flow, auxiliary receive the effect of slag.
As shown in figure 9, in the gas-liquid solid separation system of the present embodiment, gas-liquid solid separation system further includes being arranged second On pipeline and close to the solidliquid mixture sampling analysis point 130 of solidliquid mixture outlet 103, adjusted according to its Analysis Results of Water Quality Rectification control valve FV1 process operation parameters, wherein being provided with flowmeter before flow control valve FV1.It is taken in solidliquid mixture 130 top of sample analysis site is provided with backwash pipeline, is used for the emergent management of outlet line stopping state.Gas-liquid solid separation system Further include being arranged on third pipeline and close to the scavenging solution sampling analysis point 408 of liquid outlet 403.It is sampled according in scavenging solution The scavenging solution analysis result of analysis site 408 adjusts the technological parameter of flow control valve FV2 and FV3, wherein in flow control valve Flowmeter is both provided with before FV2, FV3.
As shown in figure 9, in the gas-liquid solid separation system of the present embodiment, lock hopper collection slag system 600 includes lock hopper collection slag ladle 601, it is arranged in the underface of secondary cyclone 400.Lock hopper collection slag ladle entrance 602 be arranged solid outlet 404 just under Square, lock hopper collection slag ladle 601 surface.Lock hopper collection slag ladle slag-drip opening 603 be arranged the underface of lock hopper collection slag ladle 601 and with lock Bucket collection slag ladle entrance 602 is coaxial.Lock hopper collection slag rinses the level that water pot 604 is positioned above 601 certain distance of lock hopper collection slag ladle On position, which rinses on water pot 604 and is mainly provided with lock hopper collection slag ladle blowdown line and clean-up line, these pipelines It can be shared with the respective lines of gasification furnace bottom lock hopper slag collection system.Low pressure buck series manifold 605 is arranged in lock hopper Ji Zhachong In the upper portion side wall of wash water tank 604.Auxiliary is received pulp pump 606 and is arranged on level ground, and high pressure grey water inlet series manifold 607 is set It sets at lock hopper collection slag ladle inlet valve KV1, KV2, high pressure buck branch pipe is coupled between KV1, KV2 and assists to receive pulp pump 606 At suction line.Slag collecting pit and pulp water storehouse are arranged in parallel in 601 lower section of lock hopper collection slag ladle, and wherein slag collecting pit is located at lock hopper collection The underface of slag ladle slag-drip opening 603.Preferably, be provided on lock hopper collection slag ladle 601 with the second of secondary cyclone 400 into The pressure difference transmitter PDT of comparing calculation between material mouth 402, value range are 100 to 200kPa.
As shown in figure 9, the operation principle of the gas-liquid solid separation system of the present embodiment is as follows:
Carry the raw gas of certain water content and amount of dust by the centrifugation of primary cyclone 100 and again Power settlement action realizes the initial gross separation of drop, dust and coal gas in raw gas.Light component purified gas after separation is from a liter gas 106 top of pipe enters follow-up dust pelletizing system after 120 spray atomizing of two level atomizing sprayer.The solidliquid mixture isolated from (can partly send to flash system 700 as needed) is discharged in 100 bottom of primary cyclone, and through being added at doses water It is acted on into secondary cyclone 400 with water treatment agent after managing the static mixer 500 of agent, by two-stage centrifugal separation and again After power sedimentation, from the tower tray 301 of the feeding scrubbing tower 300 of drain pipe 405, (part can be sent to sudden strain of a muscle the liquid separated as needed Steaming system 700), the higher ingredient of solid content is discharged into slag collecting pit through lock hopper collection slag system 600.
Specifically, raw gas enters first shell 101 from two first charging apertures 1042, through primary cyclone 100 Purification separation, most of light component purified gas through multiple gaps 1071 on 106 surrounding side wall of riser enter riser 106, light-component gas in remaining raw gas is from the bottom inlet of riser 106 through steady whirlpool device 108, Gas-Rotation-Plate Dust Separator 109 and the level-one atomizing sprayer 110 above it after enter riser 106 in, the purified gas after converging is together from gas Outlet 102 enters scrubbing tower 300 through Venturi scrubber 200.The heavy constituent solidliquid mixture that primary is isolated is mixed from solid-liquid Object outlet 103 enters the static mixer 500 being arranged on the second pipeline through Liquid level adjusting valve LV, wherein according to solidliquid mixture The analysis result and technological requirement of sampling analysis point 130 can partly be sent to flash system 700 through flow control valve FV1 and be dodged Processing static mixing outlet 502 is steamed through pipeline to be connected with the second charging aperture 402 of secondary cyclone 400.Solidliquid mixture Most of solid phase components fall into bottom ash bucket after water treatment agent chemical action and the physical separation of secondary cyclone 400, It is discharged into lock hopper collection slag system 600 through solid outlet 404.Purified liquid phase component rises to liquid outlet 403 through drain pipe 405 If being sent through flow control valve FV3 and making tower tray moisturizing on the dried layer tower tray 301 of scrubbing tower 300, according to scavenging solution sampling analysis point 408 Analysis result and technological requirement, Partial Liquid Phase component can be sent through flow control valve FV2 to 700 flash distillation process of flash system.
It can be seen from the above description that the above embodiments of the present invention realize following technique effect:
The gas-liquid solid separation system of the present embodiment focus on solve raw gas band water band ash is serious, system pressure drop is big, high energy consumption, The problem of water quality inferiority.In above-mentioned gas-liquid solid separation system, primary cyclone makes the droop loss for handling identical tolerance 25% to 50% is reduced, grain size of the arresting efficiency at 99% reduces nearly 3 times.After the setting of double atomization spray equipment combines The collective effect of continuous water treatment agent and secondary cyclone, make in the liquid separated dust-laden size tunable system 5um with Interior, dustiness can be down to 0.5mg/m in purified gas3Below.
The gas-liquid solid separation system of the present embodiment dust separation gas, reduction system pressure drop from source, after making Continuous process no longer in by coal gas dustiness limited, high dust collection efficiency.In addition, above-mentioned gas-liquid solid separation system can also avoid swashing The quantity that comes into operation of the filtering separation devices such as cold water filter, follow-up water-gas separator, water-gas filter, reduce equipment at This, meanwhile, the water internal circulating load in gasification system is drastically reduced, energy conservation and consumption reduction effects are notable.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.

Claims (16)

1. a kind of cyclone separator, which is characterized in that including:
The top of first shell (101), the first shell (101) has gas vent (102), the first shell (101) Lower part have solidliquid mixture export (103);
Feeding inlet structure (104) is arranged on the top of the first shell (101);
Riser (106), setting is in the first shell (101), inside and the gas vent of the riser (106) (102) it is connected to, disengagement chamber is formed between the riser (106) and the first shell (101),
Wherein, there is flow structure (107) in the circumferential side wall of the riser (106);The cyclone separator further includes setting Set the steady whirlpool device (108) in the first shell (101), the steady whirlpool device (108) is located at the riser (106) and described Between solidliquid mixture exports (103), the steady whirlpool device (108) includes plate body (1081) and is arranged in the plate body (1081) Conical structure towards on the riser (106) side, the conical structure include first conical structure (1082) with And multiple second conical structures (1083) around first conical structure (1082) setting.
2. cyclone separator according to claim 1, which is characterized in that the flow structure (107) excessively includes multiple along institute State the gap (1071) that the axial direction of riser (106) extends.
3. cyclone separator according to claim 1, which is characterized in that the cyclone separator further includes cooling water tube bank (105), the cooling water tube bank (105) is arranged in the circumferential side wall of the first shell (101).
4. cyclone separator according to claim 2, which is characterized in that multiple gaps (1071) are along the riser (106) circumferential direction interval setting.
5. cyclone separator according to claim 4, which is characterized in that between per two adjacent gaps (1071) It shifts to install.
6. cyclone separator according to claim 4 or 5, which is characterized in that it is described cross flow structure (107) be it is multiple, it is more A flow structure (107) of crossing is arranged along the axial direction interval of the riser (106).
7. cyclone separator according to claim 6, which is characterized in that it is crossed in flow structure (107) the multiple, it is close The density for crossing multiple gaps (1071) in flow structure (107) of riser (106) end, which is less than, is located at institute State the density for crossing multiple gaps (1071) in flow structure (107) in the middle part of riser (106).
8. cyclone separator according to claim 1, which is characterized in that the feeding inlet structure (104) is arranged symmetrically Two in the first shell (101) circumferential side wall, each feeding inlet structure (104) includes arc feeding-passage (1041)。
9. cyclone separator according to claim 8, which is characterized in that each the feeding inlet structure (104) further includes First charging aperture (1042) in arc feeding-passage (1041) end is set, two first charging apertures (1042) Place plane is arranged in parallel.
10. cyclone separator according to claim 8, which is characterized in that the feeding inlet structure (104) is that charging is covered, The inner wall of end and the circumferential side wall of the first shell (101) of the charging cover are tangent.
11. cyclone separator according to claim 1, which is characterized in that the cyclone separator further includes being arranged in institute The Gas-Rotation-Plate Dust Separator (109) in first shell (101) is stated, the Gas-Rotation-Plate Dust Separator (109) is located at the riser (106) Close to the solidliquid mixture export (103) one end.
12. cyclone separator according to claim 11, which is characterized in that the cyclone separator further includes positioned at described Level-one atomizing sprayer (110) above Gas-Rotation-Plate Dust Separator (109).
13. a kind of gas-liquid solid separation system, which is characterized in that including Venturi scrubber (200), scrubbing tower (300) and just Grade cyclone separator (100), the Venturi scrubber (200) are connected to the scrubbing tower (300), the primary cyclone separation Device (100) is the cyclone separator described in any one of claim 1 to 12, the primary cyclone (100) it is described Gas vent (102) is connected to by the first pipeline with the Venturi scrubber (200).
14. gas-liquid solid separation system according to claim 13, which is characterized in that the gas-liquid solid separation system further includes Secondary cyclone (400), the secondary cyclone (400) include second shell (401), the second shell (401) there is second charging aperture (402) and liquid outlet (403), the lower part of the second shell (401) to have solid on top It exports (404), the second charging aperture (402) exports (103) with the solidliquid mixture by the second pipeline and is connected to, the liquid Body outlet (403) is connected to by third pipeline with the tower tray (301) of the scrubbing tower (300).
15. gas-liquid solid separation system according to claim 14, which is characterized in that the gas-liquid solid separation system further includes The static mixer (500) being arranged on second pipeline.
16. gas-liquid solid separation system according to claim 14, which is characterized in that the gas-liquid solid separation system further includes Lock hopper collection slag system (600), the lock hopper collection slag system (600) are connected to by the 4th pipeline with the solid outlet (404).
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BE1025405B1 (en) * 2017-07-18 2019-02-18 Atlas Copco Airpower Naamloze Vennootschap FILTER ELEMENT AND LIQUID SEPARATOR WITH SUCH FILTER ELEMENT
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Patentee after: Guoneng Baotou Coal Chemical Co.,Ltd.

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