CN206814395U - A kind of process units of thermal phosphoric acid coproduction liquid sodium metaaluminate - Google Patents
A kind of process units of thermal phosphoric acid coproduction liquid sodium metaaluminate Download PDFInfo
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- CN206814395U CN206814395U CN201720404353.7U CN201720404353U CN206814395U CN 206814395 U CN206814395 U CN 206814395U CN 201720404353 U CN201720404353 U CN 201720404353U CN 206814395 U CN206814395 U CN 206814395U
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- phosphoric acid
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- sodium metaaluminate
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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Abstract
The utility model discloses a kind of process units of thermal phosphoric acid coproduction liquid sodium metaaluminate, belong to phosphorous chemical industry production technical field.Phosphorous acid production by BEP system includes the drum above combustion tower and combustion tower, the combustion tower include tower body, tower body lower end low head and tower body outside heat exchange jacket, the heat exchange jacket is connected by pipeline with drum, the low head is externally provided with insulation jacket, and the insulation jacket is connected with hot-water boiler；The process units includes liquid caustic soda storage tank, head tank, measurement of hot water groove, heat exchanger, reactor, filter press and finished pot, liquid caustic soda storage tank, head tank and the reactor are sequentially connected by pipeline, the insulation jacket, measurement of hot water groove, reactor, plate type heat exchanger, filter press and finished pot are sequentially connected by pipeline, and the heating jacket of the reactor is connected by pipeline with drum.The device can produce liquid sodium metaaluminate using the waste heat of thermal phosphoric acid.
Description
Technical field
The utility model belongs to phosphorous chemical industry production technical field, more particularly to a kind of thermal phosphoric acid coproduction liquid sodium metaaluminate
Process units.
Background technology
It is well known that the method for phosphoric acid production mainly has two kinds of wet method and Re Fa.Wherein use sulfuric acid and other mineral acids
It is phosphoric acid by wet process to manage the phosphoric acid that rock phosphate in powder makes；It is elemental phosphorous with electric furnace or blast fumance and after the phosphoric acid that is obtained through metabolic water then
Referred to as thermal phosphoric acid.Compared with phosphoric acid by wet process, the purity and concentration of thermal phosphoric acid are higher.Therefore in many fields, application is wide
It is general, and as the raising of industrial expansion and living standards of the people, the demand of thermal phosphoric acid are increasing.
The production of domestic thermal phosphoric acid at present, there is no and carry out effective UTILIZATION OF VESIDUAL HEAT IN.Due to P in phosphoric furnace2O5Cigarette
Gas has extremely strong corrosivity, and corrodes aggravation with the rise of temperature.Therefore by reducing the temperature of high-temperature flue gas in phosphoric furnace
Spend and mitigate the purpose corroded to reach, the perisporium of domestic existing phosphoric furnace arranges heat exchange jacket and up arranges drum, enters
Saliva temperature is about 35-40 DEG C, and exit water temperature is about 50-55 DEG C.So the waste heat of low temperature industrially cannot not only utilize, on the contrary
A huge heat exchanger is needed to reclaim the heat of recirculated water.At the same time, to be fusing into the solid state of phosphorous of phosphorus spray gun, then need
One insulation jacket is set on tower body low head, extra steam boiler must be configured in technique.As can be seen that China is current
Phosphoric furnace device do not utilize waste heat reasonably, and thermal pollution is produced to environment, causes the waste of the energy to be produced into high
This.
The content of the invention
In order to solve the above problems, the utility model embodiment provides a kind of thermal phosphoric acid coproduction liquid sodium metaaluminate
Process units, liquid sodium metaaluminate can be produced using the waste heat of thermal phosphoric acid.The technical scheme is as follows：
The utility model embodiment provides a kind of process units of thermal phosphoric acid coproduction liquid sodium metaaluminate, thermal phosphoric acid
Production system includes the drum above combustion tower and combustion tower, and the combustion tower includes tower body, the low head and tower of tower body lower end
External heat exchange jacket, the heat exchange jacket are connected by pipeline with drum, and the low head is externally provided with insulation jacket, the guarantor
Warm chuck is connected with hot-water boiler.The process units for the thermal phosphoric acid coproduction liquid sodium metaaluminate that the present embodiment provides includes liquid caustic soda
Storage tank, head tank, measurement of hot water groove, heat exchanger, reactor, filter press and finished pot, liquid caustic soda storage tank, head tank and the reaction
Kettle is sequentially connected by pipeline, and the insulation jacket, measurement of hot water groove, reactor, plate type heat exchanger, filter press and finished pot lead to
Cross pipeline to be sequentially connected, the heating jacket of the reactor is connected by pipeline with drum.
Wherein, the drum in the utility model embodiment is provided with water supplement port and steam (vapor) outlet, the steam (vapor) outlet and benefit
By pipeline, the hot air intake with heat exchanger and cold air outlet are connected respectively at the mouth of a river.
Wherein, it is provided with condensing reflux structure at the top of the reactor in the utility model embodiment.
Further, hot water surge tank is provided between the insulation jacket in the utility model embodiment and measurement of hot water groove.
Preferably, filtration is provided between the insulation jacket in the utility model embodiment and measurement of hot water groove.
The beneficial effect brought of technical scheme that the utility model embodiment provides is：The utility model embodiment provides
A kind of process units of thermal phosphoric acid coproduction liquid sodium metaaluminate, the device can utilize waste gas and the waste water next life of thermal phosphoric acid
Liquid sodium metaaluminate is produced, reduces the processing load of waste water and waste gas, reduces production cost.
Brief description of the drawings
Fig. 1 is the principle frame of the process units for the thermal phosphoric acid coproduction liquid sodium metaaluminate that the utility model embodiment provides
Figure.
Embodiment
It is new to this practicality below in conjunction with accompanying drawing to make the purpose of this utility model, technical scheme and advantage clearer
Type is described in further detail.
Referring to Fig. 1, the utility model embodiment provides a kind of process units of thermal phosphoric acid coproduction liquid sodium metaaluminate,
Phosphorous acid production by BEP system include phosphorus-melting groove, combustion tower, the drum above combustion tower, one-level Hydrated structure, two level Hydrated structure,
Filter and finished product storage tank etc..Wherein, combustion tower includes tower body, the low head of tower body lower end, the upper cover of tower body upper end, tower body
Heat exchange jacket outside the phosphorus spray gun of bottom, the heat exchanger tube and tower body in tower body etc., heat exchanger tube and heat exchange jacket pass through pipeline and vapour
Bag connection, low head are externally provided with insulation jacket and are used to be phosphorus spray gun heating, and the insulation jacket is connected with hot-water boiler.
Foregoing phosphorous acid production by BEP system and existing phosphorous acid production by BEP system are basically identical, and the inventive point of this patent exists
In：The process units for the thermal phosphoric acid coproduction liquid sodium metaaluminate that the present embodiment provides includes liquid caustic soda storage tank, head tank, hot water meter
Measuring tank, heat exchanger, reactor, filter press and finished pot etc., wherein, liquid caustic soda storage tank, head tank and reactor by pipeline successively
Connection, for providing 25-30wt% sodium hydroxide solution to reactor；Insulation jacket, measurement of hot water groove, reactor, board-like change
Hot device, filter press and finished pot are sequentially connected by pipeline.Wherein, insulation jacket and measurement of hot water groove are used to provide to reactor
65-75 DEG C of soft water of scheduled volume, sodium hydroxide solution, aluminium-hydroxide powder and 65-75 DEG C of soft water are by proportioning in a kettle
Reaction generation liquid sodium metaaluminate, then obtain product after cooling, filter press processing.The heating jacket of reactor by pipeline with
Drum connects（Circulation loop can be formed）, ensure reaction temperature at 100-110 DEG C.Basis on pipeline between above-mentioned each structure
Need to set pump, flowmeter or valve etc..
Wherein, the drum in the utility model embodiment is provided with water supplement port and steam (vapor) outlet, the steam (vapor) outlet and moisturizing
By pipeline, the hot air intake with heat exchanger and cold air outlet are connected mouth respectively.
Wherein, referring to Fig. 1, condensing reflux structure is provided with the top of the reactor in the utility model embodiment.
Further, referring to Fig. 1, hot water is provided between the insulation jacket and measurement of hot water groove in the utility model embodiment
Surge tank is used to store hot water.
Preferably, between the insulation jacket in the utility model embodiment and measurement of hot water groove be provided with filtration be used for pair
The hot water of insulation jacket output is filtered, and such as removes scrap iron removing impurity.
Further, it is soft for producing to be provided with multipole ion switching fabric for the hot-water boiler in the utility model embodiment
Water.
The utility model embodiment provides a kind of process units of thermal phosphoric acid coproduction liquid sodium metaaluminate, and the device can
To produce liquid sodium metaaluminate using the waste gas and waste water of thermal phosphoric acid, reduce the processing load of waste water and waste gas, reduce
Production cost.
Preferred embodiment of the present utility model is the foregoing is only, it is all in this practicality not to limit the utility model
Within new spirit and principle, any modification, equivalent substitution and improvements made etc., guarantor of the present utility model should be included in
Within the scope of shield.
Claims (5)
1. a kind of process units of thermal phosphoric acid coproduction liquid sodium metaaluminate, phosphorous acid production by BEP system include combustion tower and burning
Drum above tower, the combustion tower include tower body, tower body lower end low head and tower body outside heat exchange jacket, it is described heat exchange folder
Set is connected by pipeline with drum, and the low head is externally provided with insulation jacket, and the insulation jacket is connected with hot-water boiler；It is special
Sign is that the process units includes liquid caustic soda storage tank, head tank, measurement of hot water groove, heat exchanger, reactor, filter press and finished product
Tank, liquid caustic soda storage tank, head tank and the reactor are sequentially connected by pipeline, the insulation jacket, measurement of hot water groove, reaction
Kettle, plate type heat exchanger, filter press and finished pot are sequentially connected by pipeline, and the heating jacket of the reactor passes through pipeline and vapour
Bag connection.
2. the process units of thermal phosphoric acid coproduction liquid sodium metaaluminate according to claim 1, it is characterised in that the vapour
Wrap and be provided with water supplement port and steam (vapor) outlet, the steam (vapor) outlet and water supplement port by pipeline respectively with the hot air intake of heat exchanger and
Cold air outlet connects.
3. the process units of thermal phosphoric acid coproduction liquid sodium metaaluminate according to claim 1, it is characterised in that described anti-
Answer and be provided with condensing reflux structure at the top of kettle.
4. the process units of thermal phosphoric acid coproduction liquid sodium metaaluminate according to claim 1, it is characterised in that the guarantor
Hot water surge tank is provided between warm chuck and measurement of hot water groove.
5. the process units of thermal phosphoric acid coproduction liquid sodium metaaluminate according to claim 1, it is characterised in that the guarantor
Filtration is provided between warm chuck and measurement of hot water groove.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720404353.7U CN206814395U (en) | 2017-04-18 | 2017-04-18 | A kind of process units of thermal phosphoric acid coproduction liquid sodium metaaluminate |
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| CN201720404353.7U CN206814395U (en) | 2017-04-18 | 2017-04-18 | A kind of process units of thermal phosphoric acid coproduction liquid sodium metaaluminate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108827751A (en) * | 2018-09-04 | 2018-11-16 | 北京烨晶科技有限公司 | It is a kind of for suspension preparation, conveying and the system of reaction and its application method |
-
2017
- 2017-04-18 CN CN201720404353.7U patent/CN206814395U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108827751A (en) * | 2018-09-04 | 2018-11-16 | 北京烨晶科技有限公司 | It is a kind of for suspension preparation, conveying and the system of reaction and its application method |
| CN108827751B (en) * | 2018-09-04 | 2024-06-07 | 北京烨晶科技有限公司 | System for suspension preparation, delivery and reaction and method of use thereof |
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