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CN102616812A - Device for producing ammonium sulfate with ammonium bicarbonate as main raw material - Google Patents

Device for producing ammonium sulfate with ammonium bicarbonate as main raw material Download PDF

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Publication number
CN102616812A
CN102616812A CN2012100999878A CN201210099987A CN102616812A CN 102616812 A CN102616812 A CN 102616812A CN 2012100999878 A CN2012100999878 A CN 2012100999878A CN 201210099987 A CN201210099987 A CN 201210099987A CN 102616812 A CN102616812 A CN 102616812A
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CN
China
Prior art keywords
mold
pressure filter
rotary conveyor
filter
outlet
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Pending
Application number
CN2012100999878A
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Chinese (zh)
Inventor
潘志云
杨毅
赵建勇
饶轶晟
赵邦杰
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
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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 CN2012100999878A priority Critical patent/CN102616812A/en
Publication of CN102616812A publication Critical patent/CN102616812A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a device for producing ammonium sulfate with ammonium bicarbonate as a main raw material. The device consists of a hoister, a mixed reaction tank, a slurry delivery pump, a pressure filter, a filter cake belt conveyor, a filtrate delivery pump, a heat exchanger, an axial-flow pump, a crystallizer and a product belt conveyor, wherein the mixed reaction tank, the slurry delivery pump, the pressure filter, the filtrate delivery pump, the heat exchanger, the axial-flow pump and the crystallizer are sequentially connected with one another by pipelines; a material outlet of the hoister is adjacent to the mixed reaction tank; the filter cake belt conveyor is arranged below the pressure filter and is connected with a filter cake outlet of the pressure filter; and the product belt conveyor is arranged below the crystallizer and is connected with a material outlet of the crystallizer. By using the device, an ammonium sulfate product can be produced from ammonium bicarbonate ammonia and phosphogypsum, the energy consumption is low, and the investment is small; and the device realizes product structure adjustment, thus finding a development path for ammonium bicarbonate production industries, finding a utilization way for phosphogypsum generated by phosphorous chemical industries, and meeting the requirements of recycling economy.

Description

With bicarbonate of ammonia is the device that main raw material is produced ammonium sulfate
Technical field
The present invention relates to contain the fertilizer of ammonium salt, relate in particular to bicarbonate of ammonia and ammonium sulfate, specifically, relating to bicarbonate of ammonia is the ammonium sulfate device that main raw material is produced.
Background technology
Ammonium sulfate is a kind of nitrogenous fertilizer of producing the earliest and use both at home and abroad, and nitrogen content is between 20%~21%.Ammonium sulfate is widely used in industries such as agricultural, metallurgy, medicine, leather, wood preservation, weaving, plating.Use as acidic fertilizier in agricultural, can be used as topdress, base manure, seed manure.
Bicarbonate of ammonia once was widely used as nitrogenous fertilizer, but it has distinct disadvantage, mainly was that low, volatile, the easy caking of fertilizer efficiency, difficult keeping store, long-distance transport does not suit.Under the impact of high-effective chemical fertilizers such as urea, phosphorus ammonium and composite fertilizer, the prospect in bicarbonate of ammonia market allowed of no optimist in recent years.
Phosphogypsum is to discharge solid waste in the phosphoric acid by wet process device production process, and present treatment process is to deliver to phosphogypsum slag field to stack.Its purposes is except that the raw material use of part as phosphogypsum sheet material and cement setting retarder, ardealite brick etc.; The present less than 20% of regeneration rate; It is very big to store up pressure, seriously restricts the development of phosphorous chemical industry industry, so the product restructuring that phosphogypsum utilizes is imperative.
The application part that relates to the ammonium sulfate production equipment in the Chinese patent DB has No. 200820155474.3 " a kind of sulphur ammonium production equipment ", No. 200820133016 " a kind of FGD unit of producing ammonium sulfate fertilizer ", No. 200820155472 " a kind of sulphur ammonium production equipment of evaporation crystallization equipment, No. 201020640589 " a kind of production equipments of novel ammonium persulphate " of having.These devices differ from one another, and are the technology of preparing ammonium sulfate and the patent of device yet also do not have a kind of so far with bicarbonate of ammonia, ammonia and phosphogypsum.
Summary of the invention
The object of the present invention is to provide a kind of is the device that main raw material is produced ammonium sulfate with bicarbonate of ammonia, is the blank of preparing ammonium sulfate technology to fill up with bicarbonate of ammonia, ammonia and phosphogypsum, and alleviates the pollution of phosphogypsum to environment.
To achieve these goals; Technical scheme of the present invention is: add mixing reactor to water through the metering back; Gas ammonia is through being metered into reactor drum, and the amount according to gas ammonia adds good bicarbonate of ammonia of proportional mixing and phosphogypsum more then, makes it carry out replacement(metathesis)reaction; After reaction slurry is qualified, to send compressor to and filter, filter cake is through automobile outward transport carrying out deep processing, and filtrating is carried out evaporative crystallization through being pumped into mold, obtains ammonium sulfate product.
Therefore, the device that provides of contriver is made up of lift, hybrid reaction groove, slip transferpump, pressure filter, filter cake rotary conveyor, filtrating transferpump, interchanger, propeller pump, mold and product rotary conveyor; Wherein, hybrid reaction groove, slip transferpump, pressure filter, filtrating transferpump, interchanger, propeller pump, mold all connect through pipeline successively; The material outlet of lift is right after the hybrid reaction groove; The filter cake rotary conveyor is installed in the pressure filter below, and the pressure filter filtered solid outlet connects the filter cake rotary conveyor; The product rotary conveyor is installed in mold below, the discharge port of the mold article rotary conveyor of practicing midwifery.
Above-mentioned lift is a chapelet, and above-mentioned pressure filter is a plate and frame(type)filter press.
Above-mentioned hybrid reaction troughed belt has whisking appliance, and material inlet and gas ammonia pipeline are arranged on the hybrid reaction groove.Raw material bicarbonate of ammonia and phosphogypsum are promoted and are sent in the hybrid reaction groove by lift, and ammonia gets into the hybrid reaction groove by the gas ammonia pipeline, and reaction slurry is from exporting through going to filter with the slip transferpump.
Above-mentioned mold adopts DTB type mold, and it is an evaporative crystallizer, and vapor pipe is arranged at its top, and the feed slurry inlet pipe is arranged at top, and there is circulating line at the middle part, and there is guide shell at inner center, and the crystallized stock outlet is arranged at the bottom; The circulating line at middle part is communicated with the circulation propeller pump; The propeller pump outlet is communicated with the interchanger import, and heat exchanger exit is communicated with mold top through pipeline again; The top vapor pipe is communicated with the barometric condenser of circulating water system.
The concrete grammar that uses this device to produce ammonium sulfate is that raw material bicarbonate of ammonia, phosphogypsum, ammonia G&W are added the hybrid reaction groove as reactor drum, and the raw material mass mixture ratio of adding is: CaSO 42H 2O: NH 4HCO 3: H 2O: NH 3=1303: 623: 1020: 130; Temperature of reaction is controlled at 50 ℃~66 ℃; Reaction times was controlled at 2~4 hours.After reaction finished, the slip staple of generation was an ammonium sulfate, and the suspended particles of many lime carbonate are wherein arranged.Slip leaches calcium carbonate granule in pressure filter become the filter cake discharge, sends to handle and reclaim; Ammonium sulfate concentrations is 38%~42% in the filtrating, carries out evaporative crystallization with being pumped into mold again, and the crystalline processing condition are: pulp density is 50%~55%; Density 1.26~1.30; PH value 4~6, working pressure 40~60kPa (absolute pressure) obtains ammonium sulfate product after the crystallization.
Use device of the present invention can bicarbonate of ammonia, ammonia and phosphogypsum be the bigger ammonium sulphate grain products of the feedstock production market requirement, the energy consumption of device is low, invests little; Realize product restructuring, for the enterprise that produces bicarbonate of ammonia finds an outlet, the phosphogypsum that also produces for the phosphorous chemical industry industry finds one to utilize approach, meets the requirement of recycling economy and Sustainable development.
Description of drawings
Fig. 1 is a structural representation of the present invention.Among the figure: 1 is lift; 2 is the hybrid reaction groove; 3 is whisking appliance; 4 is the gas ammonia pipeline; 5 is the slip transferpump; 6 is pressure filter; 7 is the filter cake rotary conveyor; 8 are the filtrating transferpump; 9 is interchanger; 10 are the circulation propeller pump; 11 is mold; 12 is guide shell; 13 is the product rotary conveyor; 14 is vapor pipe.
Embodiment
Below in conjunction with accompanying drawing,, further specify beneficial effect of the present invention through embodiment.
Embodiment
Certain factory adopts the present invention to produce ammonium sulfate, and device is like accompanying drawing 1.
Device is made up of lift 1, hybrid reaction groove 2, slip transferpump 5, pressure filter 6, filter cake rotary conveyor 7, filtrating transferpump 8, interchanger 9, circulation propeller pump 10, mold 11 and product rotary conveyor 13; Wherein, hybrid reaction groove 2, slip transferpump 5, pressure filter 6, filtrating transferpump 8, interchanger 9, circulation propeller pump 10, mold 11 all connect through pipeline successively; Lift 1 is a chapelet, and model is HL300, and its material outlet is right after hybrid reaction groove 2; Filter cake rotary conveyor 7 is installed in pressure filter 6 belows, and pressure filter 6 is a plate and frame(type)filter press, and model is BAM50/1000-35U, and its filtered solid outlet connects filter cake rotary conveyor 7; Product rotary conveyor 13 is installed in mold 11 belows, and mold 11 adopts DTB type molds, its discharge port article rotary conveyor 13 of practicing midwifery.Hybrid reaction groove 2 has whisking appliance 3, and material inlet and gas ammonia pipeline 4 are arranged on the hybrid reaction groove 2, and gas ammonia pipeline 4 inserts hybrid reaction groove 2 from end 30cm.。
Mold 11 is evaporative crystallizers, and vapor pipe 14 is arranged at its top, and the feed slurry inlet pipe is arranged at top, and there is circulating line at the middle part, and there is guide shell 12 at inner center, and the crystallized stock outlet is arranged at the bottom; The circulating line at middle part is communicated with circulation propeller pump 10; 10 outlets of circulation propeller pump are communicated with interchanger 9 imports, and interchanger 9 outlets are communicated with mold 11 tops through pipeline again; Top vapor pipe 14 is communicated with the barometric condenser of circulating water system.
This factory uses said apparatus to produce continuously, and throughput reaches 15t/h.
The above; It only is preferred embodiment of the present invention; Be not that the present invention is done any pro forma restriction; Anyly do not break away from technical scheme content of the present invention, to any simple modification, equivalent variations and modification that above embodiment did, all still belong in the scope of technical scheme of the present invention according to technical spirit of the present invention.

Claims (4)

1. one kind is the device that main raw material is produced ammonium sulfate with bicarbonate of ammonia, it is characterized in that this device is made up of lift (1), hybrid reaction groove (2), slip transferpump (5), pressure filter (6), filter cake rotary conveyor (7), filtrate transferpump (8), interchanger (9), propeller pump (10), mold (11) and product rotary conveyor (13); Wherein, hybrid reaction groove (2), slip transferpump (5), pressure filter (6), filtrating transferpump (8), interchanger (9), propeller pump (10), mold (11) all connect through pipeline successively; The material outlet of lift (1) is right after hybrid reaction groove (2); Filter cake rotary conveyor (7) is installed in pressure filter (6) below, and pressure filter (6) filtered solid outlet connects filter cake rotary conveyor (7); Product rotary conveyor (13) is installed in mold (11) below, the discharge port of mold (11) the article rotary conveyor (13) of practicing midwifery.
2. like the described device of claim 1, it is characterized in that said lift (1) is a chapelet, said pressure filter (6) is a plate and frame(type)filter press.
3. like the described device of claim 1, it is characterized in that said hybrid reaction groove (2) has whisking appliance (3), material inlet and gas ammonia pipeline (4) are arranged on the hybrid reaction groove (2).
4. like the described device of claim 1, it is characterized in that said mold (11) is an evaporative crystallizer, vapor pipe (14) is arranged at its top; The feed slurry inlet pipe is arranged at top; There is circulating line at the middle part, and there is guide shell (12) at inner center, and the crystallized stock outlet is arranged at the bottom; The circulating line at middle part is communicated with circulation propeller pump (10); Circulation propeller pump (10) outlet is communicated with interchanger (9) import, and interchanger (9) outlet is communicated with mold (11) top through pipeline again; Top vapor pipe (14) is communicated with the barometric condenser of circulating water system.
CN2012100999878A 2012-04-09 2012-04-09 Device for producing ammonium sulfate with ammonium bicarbonate as main raw material Pending CN102616812A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012100999878A CN102616812A (en) 2012-04-09 2012-04-09 Device for producing ammonium sulfate with ammonium bicarbonate as main raw material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012100999878A CN102616812A (en) 2012-04-09 2012-04-09 Device for producing ammonium sulfate with ammonium bicarbonate as main raw material

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CN102616812A true CN102616812A (en) 2012-08-01

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1095055A (en) * 1993-05-08 1994-11-16 曾繁威 Produce the novel process of vitriolate of tartar and ammonium chloride with the phosphogypsum conversion method
US5830422A (en) * 1995-06-23 1998-11-03 Ormiston Mining And Smelting Co. Ltd. Method for production of sodium bicarbonate, sodium carbonate and ammonium sulfate from sodium sulfate

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1095055A (en) * 1993-05-08 1994-11-16 曾繁威 Produce the novel process of vitriolate of tartar and ammonium chloride with the phosphogypsum conversion method
US5830422A (en) * 1995-06-23 1998-11-03 Ormiston Mining And Smelting Co. Ltd. Method for production of sodium bicarbonate, sodium carbonate and ammonium sulfate from sodium sulfate

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Application publication date: 20120801