CN102320763B - Phosphogypsum purification and neutralization apparatus - Google Patents

Phosphogypsum purification and neutralization apparatus Download PDF

Info

Publication number
CN102320763B
CN102320763B CN 201110239363 CN201110239363A CN102320763B CN 102320763 B CN102320763 B CN 102320763B CN 201110239363 CN201110239363 CN 201110239363 CN 201110239363 A CN201110239363 A CN 201110239363A CN 102320763 B CN102320763 B CN 102320763B
Authority
CN
China
Prior art keywords
phosphogypsum
filter
purification
neutralization
lime
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.)
Active
Application number
CN 201110239363
Other languages
Chinese (zh)
Other versions
CN102320763A (en
Inventor
潘志云
赵邦杰
黄进
杨毅
张涛
饶轶昇
张瑞
王宗伦
李永书
罗国宽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wengfu Group Co Ltd
Original Assignee
Wengfu Group Co Ltd
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 Wengfu Group Co Ltd filed Critical Wengfu Group Co Ltd
Priority to CN 201110239363 priority Critical patent/CN102320763B/en
Publication of CN102320763A publication Critical patent/CN102320763A/en
Application granted granted Critical
Publication of CN102320763B publication Critical patent/CN102320763B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The present invention discloses a phosphogypsum purification and neutralization apparatus. The phosphogypsum purification and neutralization apparatus comprises a purification device and a neutralization device. The purification device comprises a phosphogypsum feeding pipeline (15), a turntable filter (1), a washing and cycling water tank (2), a vacuum pump (3), a wastewater conveying pump (9), a filter cloth regenerating and washing pump (4) and a material placing chute (14). The neutralization device comprises a material feeding chute (16), a drive device (17), a neutralizing and mixing stirrer (5) and a cylinder (18). The neutralizing and mixing stirrer (5) is connected with a lime bin (12) through a lime conveying belt, and is connected with the material placing chute (14) through a phosphogypsum material conveying belt (6). An outlet of the neutralizing and mixing stirrer (5) is connected with a phosphogypsum product conveying belt (11). With the present invention, the phosphogypsum produced through a wet-process phosphoric acid apparatus can be recovered and utilized so as to provide great economic benefits.

Description

A kind of phosphogypsum purification neutralising arrangement
Technical field
The present invention relates to purify neutralising arrangement, specifically, relate to a kind of phosphogypsum purification neutralising arrangement.
Background technology
Phosphogypsum mainly results from the solid waste of discharging in the Wet Phosphoric Acid Plant production process, because the phosphogypsum that Wet Phosphoric Acid Plant produces contains the not plurality of impurities such as phosphoric acid, silicofluoric acid and organic matter of washes clean, outside at present phosphogypsum brickmaking, cement setting retarder use as raw material, the phosphogypsum that Wet Phosphoric Acid Plant produces is difficult to recycle in the Thistle board building trade, and phosphogypsum regeneration rate is lower.Present treatment process is to starch with the slag stock pump to get to the stacking of phosphogypsum slag field again, constantly increases the slag field and stores up pressure, also can cause environmental pollution.
In the Chinese patent database, relating to phosphogypsum purification device application part has " a kind of phosphogypsum treatment installation " No. 200820174900.8, is the technical scheme of the purification neutralising arrangement of raw material production Thistle board but also do not have so far a kind of technique and device to the phosphogypsum that Wet Phosphoric Acid Plant produces.
Summary of the invention
The object of the invention is to provide a kind of phosphogypsum purification neutralising arrangement, and the phosphogypsum purification neutralization of using this device phosphoric acid by wet process can be produced reaches the technical parameter requirement take phosphogypsum as raw material Thistle board processed.
To achieve these goals, technical scheme of the present invention is as follows:
A kind of phosphogypsum purification neutralising arrangement comprises refining plant and neutralising arrangement;
Described refining plant by phosphogypsum feeding line, filter, cycles of washing tank, vacuum pump form, waste water transferpump, filter cloth regeneration water pump and feeding chute form, filter and vacuum pump are supporting, filter is communicated with filter cloth wash water pump and waste water transferpump respectively by the cycles of washing tank, filter is provided with feeding chute, and this feeding chute is communicated with phosphogypsum raw material belt conveyor;
Described neutralising arrangement by charging chute, drive unit, in and mixing agitator and cylindrical shell form, in link to each other with lime bin by the lime measuring belt with mixing agitator, link to each other with feeding chute by phosphogypsum raw material belt conveyor, in link to each other with phosphogypsum product belt conveyor with the outlet of mixing agitator.
Above-mentioned vacuum pump vacuumizes and makes the phosphogypsum filter cake moisture reach 20~25%.
Adding lime in above-mentioned and in the mixing agitator is to add 0.5~1.0% of phosphogypsum quality.
Phosphogypsum pH value after the above-mentioned neutralization is 4~6.
Principle of the present invention and using method are: wash the purification filter with water and remove phosphogypsum black thing and the plurality of impurities such as part phosphoric acid, silicofluoric acid, acid non-soluble substance and organic matter, phosphogypsum after the filtration neutralizes with lime again, and the phosphogypsum product of output can reach the phosphogypsum index request that Thistle board uses after the neutralization.During use, the phosphogypsum slag slurry of phosphoric acid plant being sent here by the metering of phosphogypsum slag slurry measures the rear filter that adds, after regulating the size washing of the washing water yield, waste water is sent to phosphoric acid plant and is processed, vacuumize and make the phosphogypsum filter cake moisture reach 20~25%, filter cake enters phosphogypsum raw material belt by the spiral blanking, analyze the phosphogypsum pH value of phosphogypsum raw material belt conveyor, again after filtration after the phosphogypsum metering in 0.5~1.0% ratio add lime in and in agitator and the phosphogypsum impurity neutralize, the phosphogypsum pH value after the neutralization is 4~6; Obtaining Thistle board uses phosphogypsum to be the index request of raw material.
The invention has the beneficial effects as follows: can consume phosphogypsum, the solid waste phosphogypsum of discharging in the Wet Phosphoric Acid Plant production process is digested in enterprises, not only prolonged the time limit of storing up of slag field, environmental contamination reduction, also realize the comprehensive utilization of phosphogypsum " resource utilization, minimizing, innoxious ", brought very large economic interests to enterprise.
Description of drawings
Fig. 1 is structural representation of the present invention;
Mark among the figure: 1, filter; 2, cycles of washing water pump; 3, vacuum pump; 4, filter cloth regeneration washing pump; 5, in and mixing agitator; 6, phosphogypsum raw material belt conveyor; 7, phosphogypsum slag slurry metering; 8, filter the phosphogypsum metering; 9, waste water transferpump; 10, lime belt conveyor; 11, phosphogypsum product belt conveyor; 12, lime bin; 13, lime metering; 14, feeding chute; 15, phosphogypsum feeding line; 16, charging chute; 17, drive unit; 18, cylindrical shell.
Embodiment
Below in conjunction with accompanying drawing, by embodiment, further specify beneficial effect of the present invention.
Embodiment
Certain factory adopts the present invention, installs such as accompanying drawing,
Refining plant is comprised of phosphogypsum feeding line 15, filter 1, cycles of washing tank 2, vacuum pump 3, waste water transferpump 9, filter cloth regeneration washing pump 4 and feeding chute 14, filter 1 is supporting with vacuum pump 3, filter 1 is connected with filter cloth regeneration washing pump and waste water transferpump 9 respectively by cycles of washing tank 2, filter 1 is provided with feeding chute 14, and this feeding chute 14 is connected with phosphogypsum raw material belt conveyor 6;
Neutralising arrangement by charging chute 16, drive unit 17, in and mixing agitator 5 and cylindrical shell 18 form, in link to each other with lime bin 12 by lime belt conveyor 10 with mixing agitator 5, link to each other with feeding chute 14 by phosphogypsum raw material belt conveyor 6, in link to each other with phosphogypsum product belt conveyor 11 with the outlet of mixing agitator 5.
Described vacuum pump 3 vacuumizes and makes the phosphogypsum filter cake moisture reach 20~25%.
Adding lime in described and in the mixing agitator 5 is to add 0.5~1.0% of phosphogypsum quality.
Phosphogypsum pH value after the described neutralization is 4~6.
The filtration area of described filter 1 is 50m 2The turntable filter.
Reach the duplex stirring mixer of 60t/h in described for throughput with mixing agitator 5.
This factory uses said apparatus to produce continuously, and throughput reaches 60t/h.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, any technical solution of the present invention content that do not break away from,, all still belong in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment does according to technical spirit originally.

Claims (4)

1. a phosphogypsum purification neutralising arrangement is characterized in that it comprises refining plant and neutralising arrangement;
Described refining plant is by phosphogypsum feeding line (15), filter (1), cycles of washing tank (2), vacuum pump (3), waste water transferpump (9), filter cloth regeneration washing pump (4) and feeding chute (14) form, filter (1) is supporting with vacuum pump (3), filter (1) is connected with filter cloth regeneration washing pump and waste water transferpump (9) respectively by cycles of washing tank (2), filter (1) is provided with feeding chute (14), and this feeding chute (14) is connected with phosphogypsum raw material belt conveyor (6);
Described neutralising arrangement by charging chute (16), drive unit (17), in and mixing agitator (5) and cylindrical shell (18) form, in link to each other with lime bin (12) by lime belt conveyor (10) with mixing agitator (5), link to each other with feeding chute (14) by phosphogypsum raw material belt conveyor (6), in link to each other with phosphogypsum product belt conveyor (11) with the outlet of mixing agitator (5).
2. According to claim 1The phosphogypsum purification neutralising arrangement is characterized in that described vacuum pump (3) vacuumizes to make the phosphogypsum filter cake moisture reach 20~25%.
3. According to claim 1The phosphogypsum purification neutralising arrangement, it is characterized in that described in and to add lime in the mixing agitator (5) be to add 0.5~1.0% of phosphogypsum quality.
4. According to claim 1A kind of phosphogypsum purification neutralising arrangement is characterized in that the phosphogypsum pH value after the described neutralization is 4~6.
CN 201110239363 2011-08-19 2011-08-19 Phosphogypsum purification and neutralization apparatus Active CN102320763B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201110239363 CN102320763B (en) 2011-08-19 2011-08-19 Phosphogypsum purification and neutralization apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201110239363 CN102320763B (en) 2011-08-19 2011-08-19 Phosphogypsum purification and neutralization apparatus

Publications (2)

Publication Number Publication Date
CN102320763A CN102320763A (en) 2012-01-18
CN102320763B true CN102320763B (en) 2013-01-09

Family

ID=45448637

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201110239363 Active CN102320763B (en) 2011-08-19 2011-08-19 Phosphogypsum purification and neutralization apparatus

Country Status (1)

Country Link
CN (1) CN102320763B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103482667B (en) * 2013-09-23 2014-10-15 瓮福(集团)有限责任公司 Quick and efficient purifying method for phosphogypsum
CN103754842A (en) * 2014-02-18 2014-04-30 瓮福紫金化工股份有限公司 Method for increasing yield of phosphorus from phosphogypsum washing
CN104230193A (en) * 2014-08-18 2014-12-24 中国海洋石油总公司 Method for recycling phosphogypsum solid waste
CN105439484A (en) * 2014-12-05 2016-03-30 贵州路发实业有限公司 Method for using dry process to add CaO into by-product alkalescence phosphogypsum
CN104591252A (en) * 2015-01-05 2015-05-06 安徽新中远化工科技有限公司 Purification treatment method of phosphogypsum
CN105000585B (en) * 2015-06-12 2016-11-09 泰山石膏股份有限公司 In ardealite and purification process technique
CN105645796B (en) * 2016-02-24 2018-07-27 郑州三迪建筑科技有限公司 A kind of pretreatment system of industrial gypsum
CN105601139B (en) * 2016-03-23 2018-06-19 郑州三迪建筑科技有限公司 A kind of neutralization device of the pretreatment system of industrial gypsum
CN106517292B (en) * 2016-10-28 2019-02-05 湖北宜化集团有限责任公司 A kind of method and device of ardealite purification

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1876204A (en) * 2006-07-06 2006-12-13 上海南化水处理技术工程有限公司 Ardealite innocent treatment method
CN201351144Y (en) * 2008-11-04 2009-11-25 潍坊学院 Phosphogypsum treatment installation

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2836913B1 (en) * 2002-03-08 2006-11-24 Lafarge Platres DEVICE FOR DRYING AND / OR COOKING GYPSUM

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1876204A (en) * 2006-07-06 2006-12-13 上海南化水处理技术工程有限公司 Ardealite innocent treatment method
CN201351144Y (en) * 2008-11-04 2009-11-25 潍坊学院 Phosphogypsum treatment installation

Also Published As

Publication number Publication date
CN102320763A (en) 2012-01-18

Similar Documents

Publication Publication Date Title
CN102320763B (en) Phosphogypsum purification and neutralization apparatus
CN103693670B (en) Production method of calcium sulphate dehydrate and production device thereof
CN204779369U (en) In ardealite and purification treatment system
CN103172244A (en) Recycling treatment method of water-submerged manure in breeding industry
CN203754507U (en) Mixed starch recycling system of concrete mixing station
CN101585044A (en) Food waste acidifying hydrolysis treatment method
CN102381785B (en) Method for recovering waste water containing phosphorus
CN105000585B (en) In ardealite and purification process technique
KR101212334B1 (en) A method and apparatus for remove organic substance, nitrogen and phosphorus in highly concentrated organic waste water
CN104591252A (en) Purification treatment method of phosphogypsum
CN203436980U (en) Device for treating waste gas in diammonium phosphate production
CN102872645A (en) Long-distance pipeline coal conveying terminal dehydration system device and dehydration method
CN205115079U (en) Concrete mixing plant effluent treatment plant
CN202131116U (en) Device using waste water for producing calcium chloride containing miscellaneous liquid
CN103553051A (en) Method for separating solids from liquid of dregs in production process of organic silicon
CN103496831B (en) Recycling method of silicon wafer cutting edge material waste water treatment sludge
CN106746004B (en) Method for treating breeding excrement
CN108569812B (en) Treatment system and treatment method for wastewater containing low-concentration sulfuric acid
CN109570186A (en) A kind of reuse method of soda-manufacturing waste residue liquid and system using this method
CN102173611B (en) Process and device for pretreating incineration fly ash
CN108996865A (en) A kind of sludge produces biogas preprocess method and device
CN203095747U (en) Device for treating waste water of bleaching powder concentrate secondary mother liquid
CN202543072U (en) Equipment for treating lime waste sand by secondary waste fresh water
CN104743588B (en) The solid polyaluminium chloride process units of environment-protecting clean
CN206991309U (en) A kind of sludge phosphorus recovery system for sewage treatment plants

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
GR01 Patent grant
C14 Grant of patent or utility model
CP02 Change in the address of a patent holder

Address after: 550500 Guizhou Province, Qiannan Buyei and Miao Autonomous Prefecture Fuquan Racecourse town Yingbin Road No. 1 Wengfu group

Patentee after: WENGFU GROUP Co.,Ltd.

Address before: 23, 550002 floor, urn Fuk international, No. 57, South City Road, Guizhou, Guiyang

Patentee before: WENGFU GROUP Co.,Ltd.

CP02 Change in the address of a patent holder