CN108479646A - A kind of pneumatic mixing arrangement of spent acid reduction - Google Patents

A kind of pneumatic mixing arrangement of spent acid reduction Download PDF

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Publication number
CN108479646A
CN108479646A CN201810297213.3A CN201810297213A CN108479646A CN 108479646 A CN108479646 A CN 108479646A CN 201810297213 A CN201810297213 A CN 201810297213A CN 108479646 A CN108479646 A CN 108479646A
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CN
China
Prior art keywords
spent acid
iron powder
air
reaction tank
mixing tube
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201810297213.3A
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Chinese (zh)
Inventor
谢经良
毛晨鹏
周芯
陈肸
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Qingdao University of Technology
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Qingdao University of Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qingdao University of Technology filed Critical Qingdao University of Technology
Priority to CN201810297213.3A priority Critical patent/CN108479646A/en
Publication of CN108479646A publication Critical patent/CN108479646A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/18Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
    • B01J8/1818Feeding of the fluidising gas
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/005Separating solid material from the gas/liquid stream
    • B01J8/007Separating solid material from the gas/liquid stream by sedimentation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/18Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
    • B01J8/20Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles with liquid as a fluidising medium
    • B01J8/22Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles with liquid as a fluidising medium gas being introduced into the liquid

Abstract

The invention belongs to dangerous waste processing technology fields, and in particular to a kind of pneumatic mixing arrangement of spent acid reduction, agent structure include:Air compressor, air pipeline, mixing tube, baffle, inclined plate, iron powder, feed inlet, outlet valve and reaction tank;It is provided with inclined plate at the bottom surrounding of reaction tank, the bottom of pond of reaction tank is loaded with to restore the iron powder of spent acid, iron powder concentrates the middle for being deposited in reaction tank under the guiding of inclined plate inclined surface, the centre of reaction tank is arranged above the mixing tube placed vertically, the air that air compressor generates is delivered to the bottom of reaction tank by air pipeline, spent acid is blown afloat, spent acid drives iron powder to enter mixing tube, iron powder and spent acid are in mixing tube in uphill process, it is acute and be sufficiently mixed reaction under airflow stirring effect, its agent structure is simple, design concept is ingenious, it is safe and convenient to use, application environment is friendly, wide market.

Description

A kind of pneumatic mixing arrangement of spent acid reduction
Technical field:
The invention belongs to dangerous waste processing technology fields, and in particular to a kind of pneumatic mixing arrangement of spent acid reduction passes through air Compressor come to reduction pond in conveying air come drive bottom of pond iron powder flow fully to be contacted with spent acid and carry out reduction reaction.
Background technology:
With the continuous propulsion of process of industrialization, the spent acid generated in chemical industry is more and more, these spent acid or generation In processes such as the nitrification of organic matter, esterification, sulfonation, alkylation, catalysis and gas dries, or result from titanium white production, steel During pickling and gas dry etc., these spent acid contain certain density heavy metal contaminants, and work is purified in spent acid heavy metal In skill, iron powder reducing method is the heavy metal purification process technique of generally use, and the mechanism of heavy metal purification is iron powder and spent acid In heavy metal ion occur redox reaction, by heavy metal precipitation or filtering remove.In Practical Project, iron powder and spent acid Be sufficiently mixed contact, determine the efficiency of redox reaction and the utilization rate of iron powder, but iron powder proportion is larger, is easy the bottom of at Portion corner deposits, it is difficult to be stirred fully, for these reasons, by iron powder reducing spent acid, there are still anti-in the prior art The defect that efficiency is low, the reaction time is long, iron powder consumption is big is answered, the processing cost of spent acid is caused also to remain high.Therefore, this hair Bright design prepares a kind of pneumatic mixing arrangement of spent acid reduction, and that improves iron powder and spent acid by making iron powder constantly float reacts effect Rate, using effect are good.
Invention content:
It is an object of the invention to overcome disadvantage of the existing technology, seek to design it is a kind of can be abundant with spent acid by iron powder Mixed process unit is solved corner deposition problems, is realized well-mixed effect using the method pneumatically mixed.
To achieve the goals above, the agent structure that spent acid of the present invention restores pneumatic mixing arrangement includes:This hair The agent structure that the bright spent acid being related to restores pneumatic mixing arrangement includes:Air compressor, air pipeline, mixing tube, baffle, tiltedly Plate, iron powder, feed inlet, outlet valve and reaction tank;It is provided with inclined plate at the bottom surrounding of reaction tank, to make the pond of reaction tank Bottom forms inverted cone-shaped structure, and the bottom of pond of reaction tank is loaded with to restore the iron powder of spent acid, guiding of the iron powder in inclined plate inclined surface Lower to concentrate the middle for being deposited in reaction tank, the centre of reaction tank is arranged above the mixing tube placed vertically, to convey One end of the air pipeline of air extends to the bottom end of mixing tube, and the other end is connect with air compressor, and air compressor generates Air the bottom of reaction tank is delivered to by air pipeline, spent acid is blown afloat, spent acid drives iron powder to enter mixing tube, iron powder with Spent acid is acute under airflow stirring effect and be sufficiently mixed reaction in mixing tube in uphill process;Mixing tube is arranged above The baffle for having upper and lower bottomless cylindrical, after mixed liquor enters baffle, while baffle can make air smoothly escape liquid level, also Spent acid can be made to be folded to downlink, iron powder free sedimentation, without making spent acid stream that iron powder be driven to be discharged by outlet valve, precipitation Iron powder is collected to mixing bottom of the tube through inclined plate again;The top place in left side of reaction tank is provided with to convey the feed inlet of spent acid, instead The top place in right side of Ying Chi is provided with that the outlet valve for having restored spent acid is discharged.
Further, the internal diameter of baffle of the present invention is more than the internal diameter of mixing tube, in order to the spent acid after restoring It outflow and flows downward along the inner cavity of baffle is smooth out of mixing tube.
Further, within feed inlet of the present invention is higher 5cm than outlet valve vertical height, in order to which liquid level can be automatic Form balance.
Further, air pipeline caliber of the present invention is less than mixing tube, and air pipeline caliber is at most no more than mixing The 1/2 of pipe caliber can be convenient for air that can fully enter mixing tube in the size range, and can realize that air water is fully mixed It closes.
Further, air pipeline of the present invention extends to one end of mixing infratubal port and the lower port of mixing tube is held It is flat, or higher than mixing within infratubal port 5cm, when ensuring that the air of air pipeline is all blown into mixing tube, can be formed Enough jet streams make iron powder, abrasive grit fully suck mixing tube, while upward because of air pipeline nozzle, can also prevent equipment from stopping When only running, the iron powder on inclined plate piles up air pipeline nozzle, causes to block.
In the use of the present invention, first pouring into iron powder in reaction tank, it is then turned on feed inlet and spent acid is delivered to reaction tank It is interior, it opens air compressor and air is conveyed to mixing bottom of the tube by air pipeline, to drive iron powder to rise, while driving spent acid It seethes so that reduction reaction fully occurs with iron powder, reacts the spent acid finished and is reached under the drive of air and mix nozzle upper end and go forward side by side Enter baffle, air escapes liquid level, and spent acid is folded to downlink, and the iron powder of iron powder free sedimentation, precipitation is collected to mixing tube again through inclined plate Bottom, iron powder and spent acid are formed inside and outside mixing tube and are circulated, and purified spent acid is discharged through outlet valve.
Compared with prior art, the present invention what is obtained has the beneficial effect that:It can make to own by the inclined plate being obliquely installed Iron powder concentrates on the bottom middle of reaction tank, and can be filled by coordinating with the air pipeline being arranged right over reaction tank Point all iron powders are blown afloat, iron powder is made fully to rise floating in reaction tank, improved iron powder and the time of contact of spent acid and contact Area greatly improves the reduction efficiency of spent acid, saves reduction cost;Iron powder after simultaneous reactions can pass through after falling The guiding of inclined plate is gathered in reaction tank bottom middle automatically, then proceedes to cycle and floats and carry out reduction reaction, improves anti- Efficiency is answered, ensure that the abundant progress of redox reaction;Baffle can effectively change the iron powder being discharged by mixing tube and give up The flow direction of acid, makes iron powder deposit downwards, to prevent it from being taken out of from outlet valve by spent acid, agent structure is simple, design concept Ingenious, safe and convenient to use, application environment is friendly, wide market.
Description of the drawings:
Fig. 1 is the agent structure principle schematic of the present invention.
Specific implementation mode:
The invention will be further described by way of example and in conjunction with the accompanying drawings.
Embodiment 1:
The agent structure that the spent acid that the present embodiment is related to restores pneumatic mixing arrangement includes:Air compressor 1, air pipeline 2, mixing tube 3, baffle 4, inclined plate 5, iron powder 6, feed inlet 7, outlet valve 8 and reaction tank 9;It is set at the bottom surrounding of reaction tank 9 It is equipped with inclined plate 5, to make the bottom of pond of reaction tank 9 form inverted cone-shaped structure, the bottom of pond of reaction tank 9 is loaded with to restore spent acid Iron powder 6, iron powder 6 concentrate the middle for being deposited in reaction tank 9 under the guiding of 5 inclined surface of inclined plate, the centre of reaction tank 9 just on Side is provided with the mixing tube 3 placed vertically, to convey the bottom end that one end of air pipeline 2 of air extends to mixing tube 3, separately One end is connect with air compressor 1, and the air that air compressor 1 generates is delivered to the bottom of reaction tank 9 by air pipeline 2, Spent acid is blown afloat, spent acid drives iron powder 6 to enter mixing tube 3, and iron powder 6 in uphill process, is stirred with spent acid in mixing tube 3 in air-flow The effect of mixing is lower acute and is sufficiently mixed reaction;The baffle 4 for being arranged above upper and lower bottomless cylindrical of mixing tube 3, mixed liquor Into after baffle 4, while baffle 4 can make air smoothly escape liquid level, additionally it is possible to spent acid be made to be folded to downlink, iron powder 6 freely Precipitation, without making spent acid stream that iron powder 6 be driven to be discharged by outlet valve 8, the iron powder 6 of precipitation is collected to mixing again through inclined plate 5 3 bottom of pipe;The top place in left side of reaction tank 9 is provided with to convey the feed inlet 7 of spent acid, and the top place in right side of reaction tank 9 is set It is equipped with that the outlet valve 8 for having restored spent acid is discharged.
Further, the internal diameter of the baffle 4 described in the present embodiment is more than the internal diameter of mixing tube 3, after in order to restore Spent acid outflow and flows downward along the inner cavity of baffle 4 is smooth out of mixing tube 3.
Further, within feed inlet 7 described in the present embodiment is higher 5cm than 8 vertical height of outlet valve, in order to liquid level Balance can be automatically formed.
Further, 2 caliber of air pipeline described in the present embodiment is less than mixing tube 3, and 2 caliber of air pipeline is at most no more than The 1/2 of 3 caliber of mixing tube can be convenient for air that can fully enter mixing tube 3, and can realize that air water fills in the size range Divide mixing.
Further, air pipeline 2 described in the present embodiment extends under one end and the mixing tube 3 of 3 lower port of mixing tube Port maintains an equal level, or is higher than within 3 lower port 5cm of mixing tube, when ensuring that the air of air pipeline 2 is all blown into mixing tube 3, Enough jet streams can be formed, so that iron powder, abrasive grit is fully sucked mixing tube, while upward because of 2 nozzle of air pipeline, can also prevent When only equipment is out of service, the iron powder on inclined plate piles up 2 nozzle of air pipeline, causes to block.
When the present embodiment is in use, first iron powder 6 is poured into reaction tank 9, is then turned on feed inlet 7 and is delivered to spent acid instead It answers in pond 9, opens air compressor 1 and air is conveyed to 3 bottom of mixing tube by air pipeline 2, to drive iron powder 6 to rise, together When drive spent acid seethe with fully with iron powder 6 occur reduction reaction, react the spent acid finished and reach mixing under the drive of air 3 mouthfuls of upper ends of pipe simultaneously enter baffle 4, and air escapes liquid level, and spent acid is folded to downlink, and 6 free sedimentation of iron powder, the iron powder 6 of precipitation is through oblique Plate 5 is collected to 3 bottom of mixing tube, iron powder 6 and spent acid and is circulated in inside and outside formed of mixing tube 3 again, and purified spent acid is through going out Mouth valve 8 is discharged.

Claims (6)

1. a kind of spent acid restores pneumatic mixing arrangement, it is characterised in that its agent structure includes:Spent acid reduction of the present invention Pneumatically the agent structure of mixing arrangement includes:Air compressor, air pipeline, mixing tube, baffle, inclined plate, iron powder, feed inlet, Outlet valve and reaction tank;It is provided with inclined plate at the bottom surrounding of reaction tank, to make the bottom of pond of reaction tank form back taper knot Structure, the bottom of pond of reaction tank are loaded with to restore the iron powder of spent acid, and iron powder is concentrated under the guiding of inclined plate inclined surface to be deposited in instead The middle of Ying Chi, the centre of reaction tank are arranged above the mixing tube placed vertically, to convey the air pipeline of air One end extend to the bottom end of mixing tube, the other end is connect with air compressor, and the air that air compressor generates passes through air Pipeline blows afloat spent acid to the bottom of reaction tank, and spent acid drives iron powder to enter mixing tube, and iron powder is with spent acid in mixing tube It is acute under airflow stirring effect and be sufficiently mixed reaction in uphill process;Mixing tube is arranged above circle bottomless up and down The baffle of tubular, after mixed liquor enters baffle, while baffle can make air smoothly escape liquid level, additionally it is possible to spent acid be made to be folded to Downlink, iron powder free sedimentation, without making spent acid stream that iron powder be driven to be discharged by outlet valve, the iron powder of precipitation converges again through inclined plate Collection extremely mixing bottom of the tube;The top place in left side of reaction tank is provided with to convey the feed inlet of spent acid, and the right side of reaction tank is top Place is provided with that the outlet valve for having restored spent acid is discharged.
2. a kind of spent acid according to claim 1 restores pneumatic mixing arrangement, it is characterised in that the internal diameter of baffle is more than mixed The internal diameter for closing pipe, with flowing out out of mixing tube in order to the spent acid after restoring and flow downward along the inner cavity of baffle is smooth.
3. a kind of spent acid according to claim 1 restores pneumatic mixing arrangement, it is characterised in that feed inlet compares outlet valve Within the high 5cm of vertical height, in order to which liquid level can automatically form balance.
4. a kind of spent acid according to claim 1 restores pneumatic mixing arrangement, it is characterised in that air pipeline caliber is less than Mixing tube, air pipeline caliber are at most no more than the 1/2 of mixing tube caliber, can be complete convenient for air in the size range Portion enters mixing tube, and can realize that air water is sufficiently mixed.
5. a kind of spent acid according to claim 4 restores pneumatic mixing arrangement, it is characterised in that air pipeline extends to mixed The lower port of one end and mixing tube for closing infratubal port maintains an equal level, or higher than mixing within infratubal port 5cm, to ensure air pipeline Air when all blowing into mixing tube, enough jet streams can be formed, iron powder, abrasive grit is made fully to suck mixing tube, at the same because Upward, when can also prevent equipment out of service, the iron powder on inclined plate piles up air pipeline nozzle to air pipeline nozzle, causes to block up Plug.
6. a kind of spent acid according to any claim in claim 1-5 restores pneumatic mixing arrangement, it is characterised in that In the use of the present invention, first pouring into iron powder in reaction tank, it is then turned on feed inlet and spent acid is delivered in reaction tank, opens empty Air compressor conveys air by air pipeline to mixing bottom of the tube, to drive iron powder to rise, while driving spent acid to seethe to fill Divide and reduction reaction occur with iron powder, reacts the spent acid finished and reach mixing nozzle upper end under the drive of air and enter baffle, Air escapes liquid level, and spent acid is folded to downlink, and the iron powder of iron powder free sedimentation, precipitation is collected to mixing bottom of the tube, iron through inclined plate again Powder and spent acid are formed inside and outside mixing tube to be circulated, and purified spent acid is discharged through outlet valve.
CN201810297213.3A 2018-03-30 2018-03-30 A kind of pneumatic mixing arrangement of spent acid reduction Pending CN108479646A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810297213.3A CN108479646A (en) 2018-03-30 2018-03-30 A kind of pneumatic mixing arrangement of spent acid reduction

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Application Number Priority Date Filing Date Title
CN201810297213.3A CN108479646A (en) 2018-03-30 2018-03-30 A kind of pneumatic mixing arrangement of spent acid reduction

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113800680A (en) * 2021-09-30 2021-12-17 维尔利环保科技集团股份有限公司 Reactor and method for treating landfill leachate membrane concentrated solution based on reactor

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CN1435275A (en) * 2002-02-01 2003-08-13 中国石油天然气股份有限公司 Multi-stage circular flow reactor
CN201201913Y (en) * 2008-03-19 2009-03-04 胡志刚 Flocculation reaction pot
CN201567259U (en) * 2009-11-19 2010-09-01 陈丰 Device for treating sulfonated waste water
CN102120674A (en) * 2011-01-25 2011-07-13 大连理工大学 Zero-valent iron fortified anaerobic hydrolysis-acidification sewage treatment method
CN102795690A (en) * 2012-08-24 2012-11-28 四川大学 Wastewater treatment method by ultrasonic reinforcement micron-scale iron-copper bimetallic particle
CN103043847A (en) * 2011-10-17 2013-04-17 中国石油天然气股份有限公司 Floatation-biochemical treatment method and apparatus of ultra-thick oil sewage
CN206069472U (en) * 2016-09-21 2017-04-05 武汉兴天宇环境股份有限公司 A kind of hybrid micro-electrolysis reactor of air

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1435275A (en) * 2002-02-01 2003-08-13 中国石油天然气股份有限公司 Multi-stage circular flow reactor
CN201201913Y (en) * 2008-03-19 2009-03-04 胡志刚 Flocculation reaction pot
CN201567259U (en) * 2009-11-19 2010-09-01 陈丰 Device for treating sulfonated waste water
CN102120674A (en) * 2011-01-25 2011-07-13 大连理工大学 Zero-valent iron fortified anaerobic hydrolysis-acidification sewage treatment method
CN103043847A (en) * 2011-10-17 2013-04-17 中国石油天然气股份有限公司 Floatation-biochemical treatment method and apparatus of ultra-thick oil sewage
CN102795690A (en) * 2012-08-24 2012-11-28 四川大学 Wastewater treatment method by ultrasonic reinforcement micron-scale iron-copper bimetallic particle
CN206069472U (en) * 2016-09-21 2017-04-05 武汉兴天宇环境股份有限公司 A kind of hybrid micro-electrolysis reactor of air

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113800680A (en) * 2021-09-30 2021-12-17 维尔利环保科技集团股份有限公司 Reactor and method for treating landfill leachate membrane concentrated solution based on reactor
CN113800680B (en) * 2021-09-30 2023-08-25 维尔利环保科技集团股份有限公司 Reactor and method for treating landfill leachate membrane concentrate based on same

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Application publication date: 20180904