CN106219587B - The device of calcium chloride is prepared in the waste water of self-contained calcium chloride - Google Patents
The device of calcium chloride is prepared in the waste water of self-contained calcium chloride Download PDFInfo
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- CN106219587B CN106219587B CN201610854887.XA CN201610854887A CN106219587B CN 106219587 B CN106219587 B CN 106219587B CN 201610854887 A CN201610854887 A CN 201610854887A CN 106219587 B CN106219587 B CN 106219587B
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- calcium chloride
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- atomizer
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/20—Halides
- C01F11/24—Chlorides
- C01F11/32—Purification
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- Inorganic Chemistry (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention provides the device that calcium chloride is prepared in a kind of sewage of self-contained calcium chloride, including atomizer, hydrofilter, spray drying tower, cyclone separator, drying equipment, heat-exchange apparatus and exhaust gas processing device；Drying equipment connects burner, heat-exchange apparatus and returning charge machine by pipeline respectively, and returning charge machine connects with spray drying tower；Heat-exchange apparatus connects atomizer and drying equipment respectively；The cold air being passed through from outside is delivered to calcium chloride solid in heat-exchange apparatus to self-desiccation equipment in heat-exchange apparatus and carries out heat exchange and generate hot-air by hot-air to being in that heat is added dropwise in the liquid calcium chloride of spray pattern in atomizer；Hot-air is also delivered to the bottom of spray drying tower by burner by pipeline.In the present invention, the step of simplifying to extracting calcium chloride in waste water caused by production expoxy propane, and production efficiency is improved, while the utilization rate of heat energy is improved to greatest extent, reduce the cost of extraction calcium chloride.
Description
Technical field
The present invention relates to prepare chlorination in technical field for the treatment of of organic waste, more particularly to a kind of sewage of self-contained calcium chloride
The device of calcium.
Background technology
Expoxy propane is important Organic Chemicals, mainly for the production of epoxy resin, fiberglass, electrically insulating material,
Surfactant, medicine, agricultural chemicals, coating, ion exchange resin, plasticizer, chlorohydrin rubber.The industry of expoxy propane main flow at present
Production method is chlorohydrination method, and its process route is as follows：
Calcium hydroxide (Ca (OH) must be used during preparing expoxy propane using chlorohydrination method2) enter as saponification agent
Row saponification.In saponification inevitable side reaction be expoxy propane hydrolyzed in alkaline environment ultimately generate it is sweet
Oil, therefore saponification can produce the high salinity waste water largely containing glycerine, oh group and a small amount of organic chlorine-containing compound.Should
Salt content in waste water：2.5~24wt%, COD content：900~5000mg/L.As can be seen here, during expoxy propane is produced
Caused waste water has the characteristics of temperature is high, salt content is high, pH value is high, organic chlorine-containing compound content is high.
Free chlorion in waste water can form calcium chloride with free calcium binding.Anhydrous calcium chloride or two water
Calcium chloride is the important raw material of industry, and mainly for the preparation of industrial products such as Snow Agent, refrigerant, dehumidizer, dust-proofing agents.
It is therefore desirable to the calcium chloride in the caused waste water containing calcium chloride during producing expoxy propane is extracted.
Chinese patent CN1673104A discloses following technical scheme：Epoxy propane saponified wastewater is reclaimed using multiple-effect evaporation
In calcium chloride and reuse condensed water, the method invest larger, high energy consumption simultaneously, processing cost is very big.Chinese patent
CN101337745A provide it is a kind of can handle and the method using the calcium chloride in saponification waste-water, it mainly utilizes sodium acid carbonate
Reacted with calcium chloride, generate calcium bicarbonate and sodium chloride；Calcium bicarbonate thermally decomposes to generate precipitation of calcium carbonate, water, carbon dioxide；It is useless
Calcium hydroxide in water and CO caused by calcium bicarbonate thermal decomposition2Reaction, generate precipitation of calcium carbonate and water, therefore this method cost
It is too high.Meanwhile Chinese invention patent CN101481190A also discloses following technical scheme：Using air supporting, crystallization-preventive, ceramic membrane
The techniques such as filtering, heat exchange, electrodialysis concentration, evaporation recovery, its core be novel membrane treatment technology by saponification waste-water salt with
Water separates.Obviously, the method technological process and equipment are again excessively complicated.
The content of the invention
It is an object of the invention to disclose to prepare the device of calcium chloride in a kind of sewage of self-contained calcium chloride, to simplify pair
The step of calcium chloride being extracted in waste water caused by production expoxy propane, and the cost of extraction calcium chloride is reduced, and improve life
Produce efficiency.
For achieving the above object, the invention provides the dress that calcium chloride is prepared in a kind of sewage of self-contained calcium chloride
Put, including：Atomizer, the hydrofilter being connected with atomizer, the hydrofilter connect spray drying tower by pipeline,
The spray drying tower connects cyclone separator, drying equipment and heat-exchange apparatus, the cyclone separator by pipeline and passed through
Pipeline connects returning charge machine and atomizer；The drying equipment connects burner, heat-exchange apparatus and returning charge by pipeline respectively
Machine, the returning charge machine are connected by pipeline with spray drying tower, and the exhaust gas processing device with being connected at the top of atomizer；It is described
Heat-exchange apparatus connects atomizer and drying equipment by pipeline respectively；The cold air being passed through from outside is right in heat-exchange apparatus
Self-desiccation equipment is delivered to calcium chloride solid in heat-exchange apparatus and carries out heat exchange and generate hot-air, and by pipeline by described in
Hot-air is delivered in atomizer, to be heated to what is formed in atomizer in the calcium chloride drop of spray pattern；The combustion
Burn the bottom that hot-air is also delivered to spray drying tower by device by pipeline.
As a further improvement on the present invention, the burner includes a combustion room and dual firing chamber, the dual firing chamber pass through
The formed hot gas of burning is by pipeline to heat-exchange apparatus and atomizer, and by tail gas air-introduced machine by institute of dual firing chamber
Caused tail gas passes through pipeline to drying equipment；The heat-exchange apparatus passes through two pipelines mutually converged with dual firing chamber
Hot-air is delivered in atomizer, to be heated to what is formed in atomizer in the calcium chloride drop of spray pattern.
As a further improvement on the present invention, the exhaust gas processing device include be sequentially connected absorption tower, washing pump, draw
Blower fan and chimney；The top on the absorption tower sets the shower nozzle of some connection washing pumps.
As a further improvement on the present invention, in addition to spray drying tower the compressed air system being connected, the air
Compressibility includes air compressor and air accumulator, and the cylinder accesses spray drying tower by pipeline.
As a further improvement on the present invention, the drying equipment includes horizontally disposed feeding shaft, motor and part
Coat the drying of feeding shaft, the both ends of the feeding shaft respectively it is axially extending go out drying, one end of feeding shaft passes through pipeline
It is connected with returning charge machine, the other end of feeding shaft connects heat-exchange apparatus by pipeline.
As a further improvement on the present invention, the temperature that the burner is passed through the hot-air in drying equipment is 280
DEG C to 320 DEG C.
As a further improvement on the present invention, in addition to shedding mechanism, the shedding mechanism include conveyer belt, receiving hopper,
Feeding tube, discharge bucket and the mechanism for opening/closing for being opened and closed discharge bucket, the mechanism for opening/closing are movably connected in including cylinder, two
The claw of discharge bucket outer wall, described two claws connect the both ends of cylinder respectively, to be driven by the extension of cylinder or shortening
The opening or closure of two claws.
As a further improvement on the present invention, screen pack built in the atomizer, filling modifying agent in the screen pack.
As a further improvement on the present invention, the modifying agent includes activated carbon, super fine magnesium hydroxide or dry powder depickling
Agent.
Compared with prior art, the beneficial effects of the invention are as follows：In the present invention, simplify in production expoxy propane institute
The step of calcium chloride is extracted in caused waste water, and production efficiency is improved, while the utilization of heat energy is improved to greatest extent
Rate, reduce the cost of extraction calcium chloride.
Brief description of the drawings
Fig. 1 is the structure chart for the device that calcium chloride is prepared in the sewage of the self-contained calcium chloride of the present invention；
Fig. 2 is the structure chart of shedding mechanism in Fig. 1.
Embodiment
The present invention is described in detail for shown each embodiment below in conjunction with the accompanying drawings, but it should explanation, these
Embodiment is not limitation of the present invention, those of ordinary skill in the art according to these embodiment institute work energy, method,
Or equivalent transformation or replacement in structure, belong within protection scope of the present invention.
The one kind that please join devices of the Fig. 1 with preparing calcium chloride in the sewage of the self-contained calcium chloride of the present invention illustrated in fig. 2 is real
Apply mode.
In the present embodiment, the device of calcium chloride is prepared in the sewage of the self-contained calcium chloride, including：Atomizer T06, with
The hydrofilter T02, the hydrofilter T02 of atomizer T06 connections are described by pipeline connection spray drying tower F05
Spray drying tower F05 connects cyclone separator SE01, drying equipment F03 and heat-exchange apparatus F04, the whirlwind point by pipeline
Returning charge machine X02 and atomizer T06 is connected by pipeline from device SE01.Drying equipment F03 connected respectively by pipeline burner,
Heat-exchange apparatus F04 and returning charge machine X02, the returning charge machine X02 is connected by pipeline with spray drying tower F05, and and atomizer
The exhaust gas processing device of connection at the top of T06.Returning charge machine X02 is driven by motor X12, and passes through spiral shell built-in in returning charge machine X02
Bar will be returned from the gas in the separated gas-solid mixtures out of cyclone separator SE01 and is delivered in spray drying tower F05,
And by the feeding shaft F23 in Solid Conveying and Melting to drying equipment F03.
Heat-exchange apparatus F04 connects atomizer T06 and drying equipment F03 by pipeline respectively.The cold sky being passed through from outside
Gas is delivered to calcium chloride solid in heat-exchange apparatus F04 to self-desiccation equipment F03 in heat-exchange apparatus F04 and carries out heat exchange simultaneously
Hot-air is generated, and the hot-air is delivered in atomizer T06 by pipeline, to be in mist to what is formed in atomizer T06
The calcium chloride drop of change state is heated.Filling modifying agent in screen pack T16 built in atomizer T06, screen pack T16.Tool
Body, the modifying agent includes activated carbon, super fine magnesium hydroxide or dry powder deacidification agent, and most preferably dry powder deacidification agent.Dry powder
Deacidification agent can play efficient-decomposition effect to the various organic matters in waste water caused by production expoxy propane.Most preferably,
The modifying agent including activated carbon with dry powder deacidification agent simultaneously can be filled in screen pack T16, so as to being produced in production expoxy propane
Various organic matters in raw waste water play absorption and decomposition.
Mass concentration is that 5wt%~12wt% calcium chloride solution is first conveyed in original fluid container T01, original fluid container T01
It is transported to by feed pump P01 in hydrofilter T02, and by circulating pump P02 by the calcium chloride in hydrofilter T02
Solution is pumped into spray drying tower F05 top, and first time the pre-heat treatment is carried out in spray drying tower F05.
In the present embodiment, hot-air is also delivered to spray drying tower F05 bottom by the burner by pipeline.
Specifically, the burner includes a combustion room F01 and dual firing chamber F02, the dual firing chamber F02 passes through the formed hot gas that burns
By pipeline to heat-exchange apparatus F04 and atomizer T06, and by tail gas air-introduced machine C02 by caused by dual firing chamber F02
Tail gas passes through pipeline to drying equipment F03；What the heat-exchange apparatus F04 and dual firing chamber F02 was mutually converged by two
Hot-air is delivered in atomizer T06 by pipeline, to be carried out to the calcium chloride drop in spray pattern formed in atomizer T06
Heating.Further, the exhaust gas processing device includes absorption tower T03, washing pump P04, air-introduced machine C03 and the chimney being sequentially connected
T05.Absorption tower T03 top sets the shower nozzle of some connection washing pumps.
It is empty that the compression that the device of calcium chloride also includes being connected with spray drying tower F05 is prepared in the sewage of the self-contained calcium chloride
Gas system, the air compression system include air compressor X01 and air accumulator T04, and the cylinder T04 is accessed by pipeline
Spray drying tower F05, the compressed air of outside is pumped into spray drying tower F05 with self-circulating pump P03 and contains calcium chloride
Sewage be sufficiently mixed, so as in spray drying tower F05 by hot-air carry out mist projection granulating processing, to form chlorination
Calcium solid.Gas-solid mixture is drawn and separated by cyclone separator SE01, and solid is transported to dry by returning charge machine X02
In feeding shaft F23 in dry equipment F03, and further heating, drying processing is completed in heat-exchange apparatus F04.
The calcium chloride solid for completing drying and processing is transported in heat-exchange apparatus F04.Now, led to by air-introduced machine C01
Enter temperature is relatively low in heat-exchange apparatus F04 cold air and carry out heat exchange with the higher calcium chloride solid of temperature, so as to play pair
The cooling effect of calcium chloride solid, thus caused hot-air be passed through by pipeline in spray drying tower F05 and atomizer T06,
It is achieved thereby that the efficient utilization of the energy, reduces the energy resource consumption of whole device, so as to improve the sewage of self-contained calcium chloride
The middle production cost for preparing calcium chloride.
In the present embodiment, drying equipment F03 includes horizontally disposed feeding shaft F23, motor F13 and part is wrapped
Cover the drying of feeding shaft, the both ends of the feeding shaft F23 respectively it is axially extending go out drying, one end of feeding shaft passes through pipeline
It is connected with returning charge X02, the other end of feeding shaft connects heat-exchange apparatus F04 by pipeline.Heat-exchange apparatus F04 is by motor F14
Drive and realize axial rotation.The temperature that burner is passed through the hot-air in drying equipment F03 is 280 DEG C to 320 DEG C.If
The temperature for the hot-air that burner is passed through in drying equipment F03 is set as 280 DEG C, then it is two water chlorinations finally to obtain product
Calcium, it is final to obtain if the temperature for the hot-air that burner is passed through in drying equipment F03 is set as 300 DEG C~320 DEG C
Product is anhydrous calcium chloride.Therefore, the calcium chloride solid of two kinds of different sizes can be prepared by this set of equipment.
Join shown in Fig. 2, in the present embodiment, the device of calcium chloride is prepared in the sewage of the self-contained calcium chloride also to be included unloading
Expect mechanism X03.Shedding mechanism X03 includes conveyer belt 301, receiving hopper 303, feeding tube 305, discharge bucket 306 and for opening
Close the mechanism for opening/closing of discharge bucket 306.Calcium chloride solid is launched and arrives the conveyer belt by heat-exchange apparatus F04 by flexible duct 302
On 301.
The mechanism for opening/closing includes 308, two claws 307 for being movably connected in discharge bucket outer wall of cylinder, described two claws
307 connect the both ends of cylinder 308 respectively, with is either shortened by the extension of cylinder 308 drive two claws 307 opening or
Closure.In addition, the bottom of receiving hopper 303 is provided with worm screw 304, one end of worm screw 304 is provided with gear 309, and can be by external
Actuating unit, such as motor, drive worm screw 304 to rotate by chain or belt, worm screw 304 can be connect receiving hopper 303
The calcium chloride Solid Conveying and Melting received is to feeding tube 305, so as to the chlorine that will be finally prepared of the interval under the driving of cylinder 308
Change calcium solid to draw off from discharge bucket 306, so as to complete discharging operations.
Those listed above is a series of to be described in detail only for feasibility embodiment of the invention specifically
Bright, they simultaneously are not used to limit the scope of the invention, all equivalent implementations made without departing from skill spirit of the present invention
Or change should be included in the scope of the protection.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as to the involved claim of limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (7)
1. the device of calcium chloride is prepared in the sewage of self-contained calcium chloride, it is characterised in that including：Atomizer, it is connected with atomizer
Hydrofilter, and pass through pipeline connection spray with the exhaust gas processing device that be connected at the top of atomizer, the hydrofilter
Mist drying tower, the spray drying tower connect cyclone separator, drying equipment and heat-exchange apparatus, the whirlwind point by pipeline
Returning charge machine and atomizer are connected by pipeline from device；The drying equipment connects burner respectively by pipeline, heat exchange is set
Standby and returning charge machine, the returning charge machine are connected by pipeline with spray drying tower；The heat-exchange apparatus is connected respectively by pipeline
Atomizer and drying equipment；The cold air being passed through from outside is delivered to heat-exchange apparatus in heat-exchange apparatus to self-desiccation equipment
Middle calcium chloride solid carries out heat exchange and generates hot-air, and the hot-air is delivered in atomizer by pipeline, with right
What is formed in atomizer is heated in the calcium chloride drop of spray pattern；The burner is also defeated by hot-air by pipeline
Deliver to the bottom of spray drying tower；The sewage is sewage caused by expoxy propane chlorohydrination method；
Screen pack built in the atomizer, filling modifying agent in the screen pack, the modifying agent include activated carbon, ultra-fine hydrogen-oxygen
Change magnesium or dry powder deacidification agent.
2. the device of calcium chloride is prepared in the sewage of self-contained calcium chloride according to claim 1, it is characterised in that the combustion
Burning device includes a combustion room and dual firing chamber, and the dual firing chamber passes through pipeline to heat exchange by the formed hot gas that burns
Equipment and atomizer, and tail gas caused by dual firing chamber is passed through by pipeline to drying equipment by tail gas air-introduced machine；It is described
Hot-air is delivered in atomizer by heat-exchange apparatus with dual firing chamber by two pipelines mutually converged, with to shape in atomizer
Into heated in the calcium chloride drop of spray pattern.
3. the device of calcium chloride is prepared in the sewage of self-contained calcium chloride according to claim 1, it is characterised in that the tail
Flash Gas Compression Skid System includes absorption tower, washing pump, air-introduced machine and the chimney being sequentially connected；If the top on the absorption tower sets involvement
Water receiving washes the shower nozzle of pump.
4. the device of calcium chloride is prepared in the sewage of self-contained calcium chloride according to claim 1, it is characterised in that also include
The compressed air system being connected with spray drying tower, the air compression system include air compressor and air accumulator, the storage
Tracheae accesses spray drying tower by pipeline.
5. the device of calcium chloride is prepared in the sewage of self-contained calcium chloride according to claim 1, it is characterised in that described dry
Dry equipment includes the drying that horizontally disposed feeding shaft, motor and part coat feeding shaft, the both ends point of the feeding shaft
Not it is axially extending go out drying, one end of feeding shaft is connected by pipeline with returning charge machine, and the other end of feeding shaft is connected by pipeline
Connect heat-exchange apparatus.
6. the device of calcium chloride is prepared in the sewage of self-contained calcium chloride according to claim 1, it is characterised in that the combustion
The temperature for burning the hot-air that device is passed through in drying equipment is 280 DEG C to 320 DEG C.
7. the device of calcium chloride is prepared in the sewage of self-contained calcium chloride according to claim 1, it is characterised in that also include
Shedding mechanism, the shedding mechanism include conveyer belt, receiving hopper, feeding tube, discharge bucket and the keying for being opened and closed discharge bucket
Mechanism, the mechanism for opening/closing include cylinder, two claws for being movably connected in discharge bucket outer wall, and described two claws connect respectively
The both ends of cylinder, either to shorten the opening or closure of two claws of driving by the extension of cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610854887.XA CN106219587B (en) | 2016-09-27 | 2016-09-27 | The device of calcium chloride is prepared in the waste water of self-contained calcium chloride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610854887.XA CN106219587B (en) | 2016-09-27 | 2016-09-27 | The device of calcium chloride is prepared in the waste water of self-contained calcium chloride |
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| CN106219587A CN106219587A (en) | 2016-12-14 |
| CN106219587B true CN106219587B (en) | 2017-12-12 |
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| CN109987621A (en) * | 2019-03-12 | 2019-07-09 | 江苏瑞升华能源科技有限公司 | A kind of drying process system of chlorination concentrated calcium solution |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000288336A (en) * | 1999-04-06 | 2000-10-17 | Ishikawajima Harima Heavy Ind Co Ltd | Method and apparatus for treating calcium chloride in desulfurization wastewater |
| CN101798154B (en) * | 2009-12-30 | 2011-04-20 | 宁波环洋化工有限公司 | Method for processing wastewater produced in saponification cyclization step in epoxy chloropropane production method |
| CN102285676B (en) * | 2011-05-25 | 2013-09-11 | 吉林大学 | Method for preparing nano calcium carbonate from epoxypropane saponification waste water by chlorhydrin method |
| CN102320641B (en) * | 2011-05-25 | 2014-03-05 | 吉林大学 | Resource utilization method for saponification waste water producing epoxypropane by chlorohydrination process |
| CN102964019B (en) * | 2012-11-30 | 2013-11-13 | 山东大明消毒科技有限公司 | Energy-saving evaporation treatment process of high-salinity wastewater |
| CN206069401U (en) * | 2016-09-27 | 2017-04-05 | 深圳市瑞升华科技股份有限公司 | The device of calcium chloride is prepared in the waste water of self-contained calcium chloride |
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