CN206152365U - Process systems of neutralization production cooling crystallization type product - Google Patents

Process systems of neutralization production cooling crystallization type product Download PDF

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Publication number
CN206152365U
CN206152365U CN201621140419.8U CN201621140419U CN206152365U CN 206152365 U CN206152365 U CN 206152365U CN 201621140419 U CN201621140419 U CN 201621140419U CN 206152365 U CN206152365 U CN 206152365U
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China
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water
unit
liquid
sequentially
evaporation
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CN201621140419.8U
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Chinese (zh)
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刘军
侯超
张钰
张俊浩
蔺雪军
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常州博睿杰能环境技术有限公司
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Abstract

The utility model discloses a process systems of neutralization production cooling crystallization type product is with synthesis unit, evaporative concentration unit, crystal unit and dry unit during process systems includes, the evaporative concentration unit includes separating section, compression condensation cyclic part and water spray cyclic part, and separating section is arranged in isolating vapor from former feed liquid, and compression condensation part divides the vapor compression that is used for producing separating section for the highly compressed saturated steam of high temperature, and the back of preheating to former feed liquid is accomplished through water spray cyclic part to the comdenstion water that produces simultaneously, the comdenstion water water spray of lowering the temperature. The utility model relates to a waste heat cascade utilization of process systems and compressor, full recovery the waste heat of flash steam, comdenstion water and circulating water, showing the comprehensive heat utilization efficiency who has improved the system, simultaneously through regulating and control the water spray, improved positive -displacement compressor's adiabatic efficiency and volume efficiency, reduced the process systems unit energy consumption, and then more energy -conserving.

Description

A kind of neutralisation produces the process system of crystallisation by cooling type product

Technical field

This utility model is related to a kind of energy-efficient process system in industrial evaporation field, more particularly to a kind of neutralisation The process system of production crystallisation by cooling type product.

Background technology

The consumption of China's energy at present is concentrated mainly on industrial evaporation operating unit, in medicine, chemical industry, food, environmental protection Energy resource consumption Deng field is very big;Multiple-effect evaporation technology being adopted traditional evaporation technology, its floor space is big, high energy consumption more, And adopting steam heating, predominantly coal burning boiler burning is obtained vapor, and its efficiency of combustion is low, sulfide or emitting nitride amount High, CO2 emissions are big, seriously polluted.

CN94111803.7 and CN200810122701.7 are individually disclosed using steam heating evaporation and concentration, Jin Erleng But crystallization obtains ammonium phosphate, ammonium chloride;CN201110029274.X discloses a kind of low-temperature multiple-effect evaporation crystallization filtering technique side Method, is evaporated, is concentrated, the method for crystallisation by cooling using four-effect evaporator device;CN201210329385.7 discloses one kind With the method for Wet-process Phosphoric Acid Production MAP coproduction N-P binary compound fertilizers, it is evaporated using two-effect evaporation device device, dense Contracting, crystallisation by cooling;CN201320214944.X and CN201310103497.5 disclose a kind of positive displacement compressor MVR heat pumps and steam The system of sending out.

Currently existing evaporation, concentration, crystallisation by cooling system exist inefficiency, high energy consumption, system complex, non-science, Still there are the shortcomings such as certain dependence to steam, fail the exhaust heat stepped utilization for considering system well, cause system comprehensive Close that efficiency of utilization is not high, the problems such as positive displacement compressor is inefficient.

The content of the invention

Technical problem to be solved in the utility model is:Overcome the shortcomings of that prior art is present, propose that one kind is more increased The neutralisation of effect energy-conservation produces the process system of crystallisation by cooling type product, and the system lowers the temperature water spray to regulate and control volume after preheating The injection flow rate and injection water temperature of formula compressor, improves the adiabatic efficiency and volumetric efficiency of positive displacement compressor, reduces system Unit energy consumption, thus reduce the consumption and waste heat waste of vapor and carry out energy-conservation.

In order to solve above-mentioned technical problem, the technical solution of the utility model is:A kind of neutralisation produces crystallisation by cooling type The process system of product, the process system includes neutralization synthesis unit, evaporation and concentration unit, crystalline element and drying unit, It is described neutralization synthesis unit be connected with evaporation and concentration unit, evaporation and concentration unit is connected with crystalline element, crystalline element and Drying unit is connected;

The neutralization synthesis unit is used for input, reaction and the precipitation of raw material;

The evaporation and concentration unit includes separate section, compression condensation cyclic part and water spray cyclic part, the separation Part is used to separate vapor from material liquid, and the compression condensation part is used for the vapor for producing separate section The saturated vapor of boil down to High Temperature High Pressure, while the condensed water for producing completes the preheating to material liquid by cyclic part of spraying water Afterwards, condensed water carries out cooling water spray;

The crystalline element is used for the material liquid crystallisation by cooling from evaporation and concentration unit out;

The drying unit is used to be dried the semi-finished product for crystallizing out becomes qualified products.

Further, the neutralization synthesis unit includes that the raw material being sequentially connected throws in part, neutralization reaction part, precipitation portion Point, it is liquid acid or alkali storage tank that wherein raw material throws in part, and neutralization reaction part is neutralization stirred tank (NT01), precipitation portion It is divided into sedimentation tank (ST01).

Further, the evaporation and concentration unit includes:

Regenerator section, including the feed pump (P01), one-level preheater (E01) being sequentially connected, two grades of preheaters (E02), three The path that level preheater (E03) is constituted;

Concentration cycles part, including heater (E04), gas-liquid separator (F01), circulating pump (P02) be sequentially connected composition Peripheral passage, wherein gas-liquid separator (F01) constitutes separate section, the liquid of the three-level preheater (E03) of regenerator section Outlet is connected with the liquid-inlet of heater (E04) bottom of concentration cycles part;

Compression condensation cyclic part, including it is positive displacement compressor (C01), second separator (F02), heater (E04), cold Solidifying water pot (V01) is sequentially connected the peripheral passage of composition, the wherein gas outlet of gas-liquid separator (F01) and positive displacement compressor (C01) gas feed connection, the steam of High Temperature High Pressure, heated device (E04) are formed Jing after positive displacement compressor (C01) compression Heat to circulating feed liquid, the condensed water of generation enters condensate water pot (V01), and heater (E04) constitutes vapor heating Part;

Water spray cyclic part, including condensate water pot (V01), water jet pump (P05), two grades of preheaters (E02), positive displacement compressions Machine (C01), second separator (F02) are sequentially connected the peripheral passage of composition, improve and hold by adjusting injection flow rate and injection water temperature The adiabatic efficiency and volumetric efficiency of product formula compressor (C01), second separator (F02) and condensate water pot (V01) are filled by fluid-tight Put and be connected, unnecessary water spray is back to condensate water pot (V01).

Further, the evaporation and concentration unit also includes:

Concentrated solution discharge part, including the circulating line and discharging pump (P03) that are sequentially connected, discharging pump (P03) and concentration The outlet connection of the circulating pump (P02) of cyclic part;

Condensation water residual heat utilizes part, anti-including the condensate pump (P04), three-level preheater (E03), neutralization being sequentially connected The path for answering part (NT01) to constitute, condensate pump (P04) is connected with the outlet of condensate water pot (V01), using condensation water residual heat Heating three-level charging, and condensed water is ultimately discharged into into neutralization reaction part (NT01);

Circulating water afterheat recycles part, including circulation water pot (V02), water circulating pump (P06), positive displacement compressor (C01), one-level preheater (E01) is sequentially connected the peripheral passage of composition.

Further, the crystalline element includes crystallizing pond (CP01), and crystallizing pond (CP01) is provided with for by partial mother liquid The outlet being back in system, the outlet is connected with feed pump (P01).

Further, the drying unit includes centrifuge (CE01) and/or exsiccator (D01), the centrifuge (CE01) Import be connected with the outlet of crystallizing pond (CP01).

After employing above-mentioned technical proposal, this utility model has the advantages that:

1) this utility model is additionally arranged separate section, compression condensation cyclic part and water spray circulation in evaporation and concentration unit Part, is sprayed water by controllable, effectively adjusts injection flow rate and injection water temperature, so as to improve the adiabatic effect of positive displacement compressor Rate and volumetric efficiency, reduce system unit power consumption, thus reduce the consumption and waste heat waste of vapor, and then more supernumerary segment Energy;

2) this utility model out will be originally needed with the thin indirect steam Jing bodies of cooling water condensation from gas-liquid separator Overstocking increase its temperature after contracting, so as to realize that the saturated vapor of low temperature, low pressure is become the saturated vapor of High Temperature High Pressure, And then the material liquid for needing to be evaporated can be again heated as thermal source, further up to the purpose of recycling steam;

3) this utility model can be full recycled to receive the waste heat using condensed water and recirculated water, significantly improve system Comprehensive efficiency of utilization;

4) for relatively conventional multiple-effect evaporation and existing MVR thermo-compression evaporations system, using system of the present utility model more Plus economy, energy-conservation, investment cost is moderate, and completely without any type of concurrent heating, it is only necessary to electricity can run well completely, Huge economic benefit can be produced, it is more energy-efficient than other systems more science, with operating cost is low, work is steady The advantages of determining.

Description of the drawings

In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment Or the accompanying drawing to be used needed for description of the prior art is briefly described, it should be apparent that, drawings in the following description are only It is some embodiments of the present utility model, for those of ordinary skill in the art, in the premise for not paying creative work Under, can be with according to these other accompanying drawings of accompanying drawings acquisition.

Fig. 1 is the process system that a kind of neutralisation of the present utility model produces crystallisation by cooling type product;

Code name is expressed as follows respectively in figure:

Neutralization reaction part (NT01), sediment fraction (ST01), feed pump (P01), one-level preheater (E01), two grades it is pre- Hot device (E02), three-level preheater (E03), heater (E04), gas-liquid separator (F01), forced circulation pump (P02), positive displacement Compressor (C01), second separator (F02), vapour source or steam generator (SG01), condensate water pot (V01), water jet pump (P05), discharging pump (P03), condensate pump (P04), circulation water pot (V02), water circulating pump (P06), crystallizing pond (CP01), centrifugation Machine (CE01), exsiccator (D01).

Specific embodiment

In order that content of the present utility model is easier to be clearly understood, below according to specific embodiment and with reference to attached Figure, is described in further detail to this utility model.

As shown in figure 1, a kind of neutralisation produces the process system of crystallisation by cooling type product, the process system includes neutralization Synthesis unit, evaporation and concentration unit, crystalline element and drying unit, the neutralization synthesis unit is connected with evaporation and concentration unit Connect, evaporation and concentration unit is connected with crystalline element, and crystalline element is connected with drying unit;

The neutralization synthesis unit is used for input, reaction and the precipitation of raw material;

The evaporation and concentration unit includes separate section, compression condensation cyclic part and water spray cyclic part, the separation Part is used to separate vapor from material liquid, and the compression condensation part is used for the vapor for producing separate section The saturated vapor of boil down to High Temperature High Pressure, while the condensed water for producing completes the preheating to material liquid by cyclic part of spraying water Afterwards, condensed water carries out cooling water spray;

The crystalline element is used for the material liquid crystallisation by cooling from evaporation and concentration unit out;

The drying unit is used to be dried the semi-finished product for crystallizing out becomes qualified products.

As shown in figure 1, the neutralization synthesis unit includes that the raw material being sequentially connected is thrown in part, neutralization reaction part, sunk It is liquid acid or alkali storage tank that part is thrown in shallow lake part, wherein raw material, and neutralization reaction part is neutralization stirred tank NT01, precipitation Part is sedimentation tank ST01.

Preferably, as shown in figure 1, the evaporation and concentration unit includes:

Regenerator section, including the feed pump P01, one-level preheater E01 being sequentially connected, two grades of preheater E02, three-level preheatings The path that device E03 is constituted;

Concentration cycles part, including heater E04, gas-liquid separator F01, circulating pump P02 be sequentially connected the circulation of composition Path, wherein gas-liquid separator F01 constitutes separate section, and it is internal with flow separation and the wire packing separation of spinning, preheating The liquid outlet of partial three-level preheater E03 is connected with the liquid-inlet of the heater E04 bottoms of concentration cycles part;

Compression condensation cyclic part, including positive displacement compressor C01, second separator F02, heater E04, condensate water pot V01 is sequentially connected the peripheral passage of composition, and second separator F02 inside separates with wire packing, wherein gas-liquid separator F01 Gas outlet be connected with the gas feed of positive displacement compressor C01, Jing positive displacement compressor C01 compression after form High Temperature High Pressure Steam, heated device E04 heats to circulating feed liquid, and the condensed water of generation enters condensate water pot V01, heater E04 structures Into vapor heating part, vapour source or steam generator SG01 are right before heater E04 after second separator F02 Process system carries out startup preheating;

Water spray cyclic part, including condensate water pot V01, water jet pump P05, two grades of preheater E02, positive displacement compressor C01, Second separator F02 is sequentially connected the peripheral passage of composition, and by adjusting injection flow rate and injection water temperature positive displacement compressor is improved The adiabatic efficiency and volumetric efficiency of C01, second separator F02 is connected with condensate water pot V01 by liquid seal device, unnecessary water spray It is back to condensate water pot V01.

Preferably, as shown in figure 1, the evaporation and concentration unit also includes:

Concentrated solution discharge part, including the circulating line and discharging pump P03 that are sequentially connected, discharging pump P03 and concentration cycles The outlet connection of partial circulating pump P02;

Condensation water residual heat utilizes part, including the condensate pump P04, three-level preheater E03, the neutralization reaction portion that are sequentially connected The path for dividing NT01 to constitute, condensate pump P04 is connected with the outlet of condensate water pot V01, grading using condensation water residual heat heating three Material, and condensed water is ultimately discharged into into neutralization reaction part NT01;

Circulating water afterheat recycles part, including circulation water pot V02, water circulating pump P06, positive displacement compressor C01, one Level preheater E01 is sequentially connected the peripheral passage of composition.

Alternatively, as shown in figure 1, the crystalline element includes that crystallizing pond CP01, crystallizing pond CP01 are provided with for by portion Decomposition mother solution is back to the outlet in system, and the outlet is connected with feed pump P01, and crystallizing pond can be arranged as required to several, By taking a crystallizing pond as an example, crystallizing pond can be that natural cooling crystallization or water cooling are crystallized to the present embodiment.

Alternatively, it is described as shown in figure 1, the drying unit includes centrifuge CE01 and the exsiccator D01 being sequentially connected The import of centrifuge CE01 is connected with the outlet of crystallizing pond CP01;It is dry only centrifugation to be carried out also dependent on needs from centrifuge CE01 It is dry, product is finally given, packed.

In the present embodiment, it is further described with raw material liq nitric acid and solid sodium carbonate:

2 are pressed with nitric acid and sodium carbonate:1 ratio is thrown to neutralization stirred tank NT01 and is reacted, using smoke absorption Big calorimetric and fog that reaction is produced are processed, sediment fraction is sedimentation tank ST01, need to carry out because sodium carbonate is contained within impurity Precipitation, by reacted sodium nitrate solution sedimentation tank is passed through, and is precipitated, and is understood some ferrous carbonate and is precipitated, and Part nitric acid sodium crystal.

Sodium nitrate light green mother solution (supernatant) after precipitation passes sequentially through one-level preheater through feed pump P01 After E01, two grades of preheater E02, three-level preheater E03 are preheated, into forced circulation pump P02 imports, with circulation fluid Into heater E04, heating evaporation is carried out, forced circulation pump P02 passes through frequency conversion control circulating load size;From heater E04 pipes Journey gas-liquid mixture out carries out cyclonic separation into gas-liquid separator F01, subsequently secondary after wire packing is separated Steam is compressed into positive displacement compressor C01, while regulating and controlling optimal injection flow rate and injection water temperature is sprayed water, unnecessary water spray Condensate water pot V01 is back to by the liquid seal device being connected between second separator F02 and condensate water pot V01;Steam after compression Vapour is segregated into heater E04 shell sides by the wire packing that carries of second separator F02 inside, and that heating is carried out to circulation fluid is cold Solidifying, condensed water is constantly collected in condensate water pot V01;Most of condensed water is completed by condensate pump P04, three-level preheater E03 Condensation water residual heat is utilized, and is re-used into neutralization reaction part NT01, and condensation water residual heat is mainly used in heating three-level charging;It is few Partial condensation water carries out water spray regulation and control by water jet pump P05, two grades of preheater E02 to positive displacement compressor C01;Recirculated water is main Recirculated water is completed by the circulation water pot V02 that is sequentially connected, water circulating pump P06, positive displacement compressor C01, one-level preheater E01 UTILIZATION OF VESIDUAL HEAT IN, circulating water afterheat is mainly used in heating one-level charging.

The continuous circulating and evaporating concentration of concentrated solution, after boiling point temperature rise reaches 15~18 degree, Jing circulating lines, discharging pump P03 enter Row continues discharge, is herein natural wind crystallisation by cooling into crystallizing pond CP01, subsequently carries out centrifugal drying, finally gives nitric acid Sodium product, is packed, and part sodium nitrate mother liquor reflux evaporates, concentrates again to internal system.If arranging two crystallizing ponds, two Individual crystallizing pond switches over crystallization.

This utility model is additionally arranged separate section, compression condensation cyclic part and water spray circulation portions in evaporation and concentration unit Point, sprayed water by controllable, injection flow rate and injection water temperature are effectively adjusted, so as to improve the thermal insulation of positive displacement compressor C01 Efficiency and volumetric efficiency, reduce system unit power consumption, thus reduce the consumption and waste heat waste of vapor, and then more supernumerary segment Energy.

This utility model out will be originally needed with the thin indirect steam Jing bodies of cooling water condensation from gas-liquid separator F01 Overstocking increase its temperature after contracting, so as to realize that the saturated vapor of low temperature, low pressure is become the saturated vapor of High Temperature High Pressure, And then the material liquid for needing to be evaporated can be again heated as thermal source, further up to the purpose of recycling steam.

This utility model can be full recycled to receive the waste heat using condensed water and recirculated water, significantly improve the comprehensive of system Close efficiency of utilization.

For relatively conventional multiple-effect evaporation and existing MVR thermo-compression evaporations system, using system of the present utility model more Economy, energy-conservation, investment cost is moderate, and completely without any type of concurrent heating, it is only necessary to electricity can run well completely, energy Huge economic benefit is enough produced, it is more energy-efficient than other systems more science, with operating cost is low, working stability The advantages of.

This utility model is applied to acid-base neutralization method and reacts the salt product for generating, and it belongs to the thing of crystallisation by cooling process Material, such as nitrate, sulfate, fluosilicate.This utility model is related to the exhaust heat stepped utilization of process system and compressor, entirely Portion has reclaimed the waste heat of indirect steam, condensed water and recirculated water, the comprehensive efficiency of utilization of system is significantly improved, while passing through Controllable is sprayed water, and improves the adiabatic efficiency and volumetric efficiency of positive displacement compressor, reduces process system unit energy consumption.

Particular embodiments described above, the technical problem solved to this utility model, technical scheme and beneficial effect are entered Go further description, should be understood that and the foregoing is only specific embodiment of the utility model, and without It is all within spirit of the present utility model and principle in this utility model is limited, any modification, equivalent substitution and improvements done Deng should be included within protection domain of the present utility model.

Claims (6)

1. a kind of neutralisation produces the process system of crystallisation by cooling type product, it is characterised in that:The process system includes neutralization Synthesis unit, evaporation and concentration unit, crystalline element and drying unit, the neutralization synthesis unit is connected with evaporation and concentration unit Connect, evaporation and concentration unit is connected with crystalline element, and crystalline element is connected with drying unit;
The neutralization synthesis unit is used for input, reaction and the precipitation of raw material;
The evaporation and concentration unit includes separate section, compression condensation cyclic part and water spray cyclic part, the separate section For vapor to be separated from material liquid, the compression condensation part is used for the vapor compression for producing separate section For the saturated vapor of High Temperature High Pressure, while the condensed water for producing is completed after the preheating to material liquid by water spray cyclic part, it is cold Solidifying water carries out cooling water spray;
The crystalline element is used for the material liquid crystallisation by cooling from evaporation and concentration unit out;
The drying unit is used to be dried the semi-finished product for crystallizing out becomes qualified products.
2. a kind of neutralisation according to claim 1 produces the process system of crystallisation by cooling type product, it is characterised in that:Institute Stating neutralization synthesis unit includes that the raw material being sequentially connected throws in part, neutralization reaction part, wherein sediment fraction, raw material input portion It is divided into liquid acid or alkali storage tank, neutralization reaction part is neutralization stirred tank (NT01), and sediment fraction is sedimentation tank (ST01).
3. a kind of neutralisation according to claim 2 produces the process system of crystallisation by cooling type product, it is characterised in that institute Stating evaporation and concentration unit includes:
Regenerator section, it is pre- including the feed pump (P01), one-level preheater (E01), two grades of preheaters (E02), three-levels being sequentially connected The path that hot device (E03) is constituted;
Concentration cycles part, including heater (E04), gas-liquid separator (F01), circulating pump (P02) be sequentially connected following for composition Ring path, wherein gas-liquid separator (F01) constitute separate section, the liquid outlet of the three-level preheater (E03) of regenerator section It is connected with the liquid-inlet of heater (E04) bottom of concentration cycles part;
Compression condensation cyclic part, including positive displacement compressor (C01), second separator (F02), heater (E04), condensed water Tank (V01) is sequentially connected the peripheral passage of composition, the wherein gas outlet of gas-liquid separator (F01) and positive displacement compressor (C01) gas feed connection, the steam of High Temperature High Pressure, heated device (E04) are formed Jing after positive displacement compressor (C01) compression Heat to circulating feed liquid, the condensed water of generation enters condensate water pot (V01), and heater (E04) constitutes vapor heating Part;
Water spray cyclic part, including condensate water pot (V01), water jet pump (P05), two grades of preheaters (E02), positive displacement compressors (C01), second separator (F02) is sequentially connected the peripheral passage of composition, and by adjusting injection flow rate and injection water temperature volume is improved The adiabatic efficiency and volumetric efficiency of formula compressor (C01), second separator (F02) and condensate water pot (V01) pass through liquid seal device It is connected, unnecessary water spray is back to condensate water pot (V01).
4. a kind of neutralisation according to claim 3 produces the process system of crystallisation by cooling type product, it is characterised in that institute Stating evaporation and concentration unit also includes:
Concentrated solution discharge part, including the circulating line and discharging pump (P03) that are sequentially connected, discharging pump (P03) and concentration cycles The outlet connection of partial circulating pump (P02);
Condensation water residual heat utilizes part, including the condensate pump (P04), three-level preheater (E03), the neutralization reaction portion that are sequentially connected The path for dividing (NT01) to constitute, condensate pump (P04) is connected with the outlet of condensate water pot (V01), is heated using condensation water residual heat Three-level feeds, and condensed water is ultimately discharged into into neutralization reaction part (NT01);
Circulating water afterheat recycles part, including circulation water pot (V02), water circulating pump (P06), positive displacement compressor (C01), One-level preheater (E01) is sequentially connected the peripheral passage of composition.
5. a kind of neutralisation according to claim 4 produces the process system of crystallisation by cooling type product, it is characterised in that:Institute Crystalline element is stated including crystallizing pond (CP01), crystallizing pond (CP01) is provided with for partial mother liquid to be back to into going out in system Mouthful, the outlet is connected with feed pump (P01).
6. a kind of neutralisation according to claim 5 produces the process system of crystallisation by cooling type product, it is characterised in that institute Drying unit is stated including centrifuge (CE01) and/or exsiccator (D01), the import of the centrifuge (CE01) and crystallizing pond (CP01) outlet connection.
CN201621140419.8U 2016-10-20 2016-10-20 Process systems of neutralization production cooling crystallization type product CN206152365U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106390491A (en) * 2016-10-20 2017-02-15 常州博睿杰能环境技术有限公司 Process system for producing cooling crystallization product with neutralization method
CN108046864A (en) * 2017-11-13 2018-05-18 兰小春 Hydrochloric acid decomposes the method and device of low-grade phosphate ore production water soluble composite fertilizer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106390491A (en) * 2016-10-20 2017-02-15 常州博睿杰能环境技术有限公司 Process system for producing cooling crystallization product with neutralization method
CN108046864A (en) * 2017-11-13 2018-05-18 兰小春 Hydrochloric acid decomposes the method and device of low-grade phosphate ore production water soluble composite fertilizer

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