CN208599727U - The Multifunction cross varying load reaction kettle of white carbon black is prepared for double salt double decompositions - Google Patents
The Multifunction cross varying load reaction kettle of white carbon black is prepared for double salt double decompositions Download PDFInfo
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- CN208599727U CN208599727U CN201820896089.8U CN201820896089U CN208599727U CN 208599727 U CN208599727 U CN 208599727U CN 201820896089 U CN201820896089 U CN 201820896089U CN 208599727 U CN208599727 U CN 208599727U
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Abstract
The utility model relates to the Multifunction cross varying load reaction kettle of white carbon black is prepared for double salt double decompositions, include the efficient even distribution device of reaction mass, self- poking arrangement, heating device, cooling device, automatic flushing device, alternating load negative pressure evaporation device, quickly discharging material device, the efficient uniformly distributed contact of double salt and water glass solution is realized using special construction spray head, self- poking arrangement ensure that the uniformity of reaction, the stability of reaction system is realized by the heater and cooler device of reaction kettle, guarantee the stability of reaction process pH value according to the variation adjustment alternating load negative pressure evaporation device of reacting system PH value, the automatic quickly discharging material of feed liquid enters press filteration system after reaction, the automatic flushing device cleaning reaction kettle inner wall and agitating device inside reaction kettle are utilized simultaneously, cleaning solution enters press filteration system together with feed liquid, solution It has determined and has frequently added and subtracted the problem of acid solution regulation system pH value in carbon white production process, while the stability of double salt double decomposition white carbon black production techniques and the automatization level of device greatly improved, helped to improve the product quality of precipitated silica.
Description
Technical field
The invention belongs to preparing white carbon black by precipitation method technical fields, and in particular to a kind of double salt double decompositions prepare white carbon black
Multifunction cross varying load reaction kettle, which, which solves, frequently adds and subtracts acid solution regulation system pH value in carbon white production process
Problem, while the stability of double salt double decomposition white carbon black production techniques and the automatization level of device greatly improved, has
Help improve the product quality of precipitated silica.
Background technique
White carbon black is broadly divided into fume colloidal silica and precipitated silica by production method.Under fume colloidal silica normality
For the cotton-shaped translucent solid colloidal nanoparticle of white-amorphous, but preparation process is complicated, and equipment investment is higher.White carbon black at present
Industrialized production route be mostly the precipitation method, it is substantially former that precipitated silica, which refers to sulfuric acid, hydrochloric acid, double salt and waterglass,
Expect the silica of production.
The preparation system of precipitated silica is more demanding to temperature, pH value, uses double salt and waterglass for raw material preparation
The technical process of white carbon black is exothermic reaction, while generating volatility gas ammonia, and it is automatic that conventional production methods are limited to Equipment
Change degree is lower, and it is poor that reaction solution is evenly distributed with degree, and heating, cooling, cleaning are not carried out automation, while for guarantee system pH value
Stability, acid solution need to be frequently added and subtracted into reaction system, thus causes hydroxyl impurity in white carbon black product higher, white carbon black produce
Product quality is lower, while also increasing the processing difficulty of white carbon black filtrate.
Summary of the invention
Double salt double decomposition White Carbon black reaction kettles with multi-functional automation are developed, realize the stability of reaction system,
The addition of reaction system acid solution is reduced, and then improving quality of white carbon black product, reducing white carbon black production cost is white carbon black production
Producer's urgent problem to be solved.
The present invention is intended to provide a kind of multi-functional, it can be achieved that prepared by double salt double decomposition white carbon blacks of automatic operation
Multifunction cross varying load reaction kettle.
To achieve the above object, the technical solution adopted by the present invention is that, the more of white carbon black are prepared for double salt double decompositions
Function alternating load reaction kettle, is made of reaction kettle ontology and reaction kettle auxiliary equipment, and reaction kettle ontology includes that reaction mass is high
Imitate even distribution device, self- poking arrangement, heating device, cooling device, automatic flushing device, online PH value detector.Reaction kettle
Auxiliary equipment includes alternating load negative pressure evaporation device, quickly discharging material device.
Double salt are ammonium sulfate, ammonium nitrate, ammonium phosphate etc..
The alternating load negative pressure evaporation device is made of the gentle recovery ammonia cooler of vacuum pump.
The quickly discharging material device by discharge valve and centrifugal pump group at.
The efficient even distribution device of reaction mass using special construction spray head realize double salt and water glass solution it is efficient
Cloth contact, self- poking arrangement are used to guarantee the uniformity of reaction, guarantee reaction system by the heating of reaction kettle, cooling device
Temperature stablize.Alternating load negative pressure evaporation device and online PH value detector, which are realized, to link, according to the change of reacting system PH value
Change, reacting kettle inner pressure is controlled by alternating load negative pressure evaporation device, guarantees the stability of pH value in reaction system.Reaction knot
Feed liquid quickly discharging material enters press filteration system after beam, at the same using inside reaction kettle automatic flushing device cleaning reaction kettle inner wall and
Agitating device, cleaning solution enter press filteration system together with feed liquid.
The technique for preparing white carbon black using above-mentioned Multifunction cross varying load reaction kettle comprising the steps of: reaction mass warp
Efficient even distribution device enters reaction kettle, guarantees the stability of temperature of reaction system by the heater and cooler device of reaction kettle, stirs
The uniformity that device guarantees material reaction is mixed, alternating load negative pressure evaporation device is adjusted, controls reacting kettle inner pressure, reaction terminates
Cooled down afterwards by cooling device sequencing, final mean annual increment solution is directly entered press filteration system by the quickly discharging material device of reaction kettle lower part
White carbon black filter cake is obtained, automation cleaning is carried out to reaction kettle inside using automatic flushing device, cleaning solution enters filters pressing together
Machine recovery section white carbon black.
The raw material even distribution device is made of two pipelines, and the spray head of special construction is arranged on pipeline, so that material is atomized
Contact.Jet diameters 0.2-1.2mm, each feed line spray head quantity are 1-10.
The stirring blade of the self- poking arrangement is double-layer structure, every layer 45 ° -90 ° of leaf angle, is respectively placed in reaction
The lower part and middle and upper part of kettle.
The heating device is that steam jacket heats, 60-150 DEG C of operation temperature.
The cooling device is coil arrangement, and cooling medium is industrial circulating water, 30-60 DEG C of operation temperature.
The automatic flushing device is the coil arrangement of aperture, bore dia 0.5-2mm.
The alternating load negative pressure evaporation device, operating pressure 0 to -100kpa.
The quickly discharging material device by discharge valve and centrifugal pump group at.
Beneficial effects of the present invention: realize that the reaction process of double salt and waterglass in reaction kettle is simplified, automation is controlled
System solves the technical problem that acid solution adjustment system pH value is frequently added and subtracted in traditional reactor reaction process, only by adusting friendship
The stability of system pH value can be realized in varying load negative pressure evaporation device, simultaneously because reaction process is not added with excess acid, hard charcoal
Hydroxyl impurity is extremely low in black product, and product quality is preferable, can reach the quality of fume colloidal silica.Apparatus of the present invention collection is uniformly distributed,
The functions such as stirring, temperature control, negative pressure evaporation, quickly discharging material, automatic cleaning greatly improve the steady of carbon white production process in one
Qualitative and automatization level has preferable economic and social benefit.
Detailed description of the invention
The bis- salt double decompositions of Fig. 1 prepare the Multifunction cross varying load reaction kettle structural schematic diagram of white carbon black.
Appended drawing reference in figure, 1 self- poking arrangement, the efficient even distribution device of 2 reaction masses, 3 automatic flushing devices, 4 heating
Device, 5 cooling devices, 6 alternating load negative pressure evaporation devices, 6-1 vacuum pump, 6-2 gas ammonia recycling cooler, 7 quickly discharging materials dress
It sets, 7-1 centrifugal pump, 8 online PH value detectors
Specific embodiment
The present invention is further explained in the light of specific embodiments, and but the scope of the present invention is not limited thereto.
Embodiment 1
A kind of double salt double decompositions prepare the Multifunction cross varying load reaction kettle of white carbon black, comprising self- poking arrangement 1, instead
Answer material high-efficiency even distribution device 2, heating device 4, cooling device 5, automatic flushing device 3, alternating load negative pressure evaporation device 6,
Quickly discharging material device 7, online PH value detector 8.
White carbon black is prepared using the Multifunction cross varying load reaction kettle, comprising the following steps: by concentration is 10%
The double salt of reaction mass and water glass solution squeezed into respectively by certain mol ratio through metering pump reaction kettle top it is efficient
Cloth apparatus 2 realizes that the atomization of double salt and water glass solution contacts by the special nozzle on efficient even distribution device 2, in automatic stirring
It mixes and is reacted under the uniform stirring of device 1, keep anti-by the quantity of circulating water of the quantity of steam and cooling device 5 that control heating device 4
Answer temperature control at 60-100 DEG C, pH value and 6 automatic interlock of alternating load negative pressure evaporation device of reaction system guarantee reactant
The stability of pH value in being.According to the variation of reacting system PH value, extracted out by the vacuum pump of alternating load negative pressure evaporation device
Ammonia reaches control reacting kettle inner pressure, to guarantee that reacting system PH value is stablized in 6.5-9.5.After reaction, stop stirring
It mixes device 1, the steam for cutting off heating device 4, stop alternating load negative pressure evaporation device 6, by cooling device 5 to reaction system
It carries out sequencing and is cooled to 40 DEG C hereinafter, opening the quickly discharging material device 7 of reaction kettle lower part, unlatching is automatic after discharging cleans
Device 3 cleans reaction kettle inner wall and agitating shaft, stirring blade, and cleaning solution enters press filteration system.
The concentration of reaction mass can be 10%-20% mass percent.
Double salt can be ammonium sulfate, ammonium nitrate, ammonium phosphate etc..
Claims (8)
1. a kind of double salt double decompositions prepare the Multifunction cross varying load reaction kettle of white carbon black, attached by reaction kettle ontology and reaction kettle
Belong to device composition, the reaction kettle ontology includes the efficient even distribution device of reaction mass, self- poking arrangement, heating device, cooling
Device, automatic flushing device, online PH value detector, reaction kettle auxiliary equipment include alternating load negative pressure evaporation device, quickly
Device for discharging；
The alternating load negative pressure evaporation device is made of the gentle recovery ammonia cooler of vacuum pump；
The quickly discharging material device by discharge valve and centrifugal pump group at.
2. a kind of double salt double decompositions according to claim 1 prepare the Multifunction cross varying load reaction kettle of white carbon black,
It is characterized in that, the efficient even distribution device of reaction mass is made of two feedstock transportation pipelines, spray head is arranged on pipeline, spray head is straight
Diameter 0.2-1.2mm, it is 1-10 that spray head quantity, which is arranged, in single feedstock transportation pipeline.
3. a kind of double salt double decompositions according to claim 1 prepare the Multifunction cross varying load reaction kettle of white carbon black,
It is characterized in that, the stirring blade of the self- poking arrangement is double-layer structure, is respectively placed in the lower part and middle and upper part of reaction kettle, often
45 ° -90 ° of leaf angle of layer.
4. a kind of double salt double decompositions according to claim 1 prepare the Multifunction cross varying load reaction kettle of white carbon black,
It being characterized in that, the heating device is that steam jacket heats, 60-150 DEG C of operation temperature.
5. a kind of double salt double decompositions according to claim 1 prepare the Multifunction cross varying load reaction kettle of white carbon black,
It being characterized in that, the cooling device is coil arrangement, and cooling medium is industrial circulating water, 30-60 DEG C of operation temperature.
6. a kind of double salt double decompositions according to claim 1 prepare the Multifunction cross varying load reaction kettle of white carbon black,
It is characterized in that, the automatic flushing device is the coil arrangement of aperture, bore dia 0.5-2mm.
7. a kind of double salt double decompositions according to claim 1 prepare the Multifunction cross varying load reaction kettle of white carbon black,
It being characterized in that, the alternating load negative pressure evaporation device and online PH value detector link, according to the variation of reacting system PH value,
Reacting kettle inner pressure, operating pressure 0 to -100kpa are controlled by alternating load negative pressure evaporation device.
8. a kind of double salt double decompositions according to claim 1 prepare the Multifunction cross varying load reaction kettle of white carbon black,
Be characterized in that, the quickly discharging material device by discharge valve and centrifugal pump group at, the discharge valve and reaction kettle body lower part are direct-connected,
Discharge valve is connect with centrifugal pump by pipeline, and outlet of centrifugal pump is directly entered press filteration system by pipeline.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110575801A (en) * | 2018-06-11 | 2019-12-17 | 河南骏化发展股份有限公司 | Multifunctional alternating load reaction kettle for preparing white carbon black by double-salt double decomposition method |
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2018
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110575801A (en) * | 2018-06-11 | 2019-12-17 | 河南骏化发展股份有限公司 | Multifunctional alternating load reaction kettle for preparing white carbon black by double-salt double decomposition method |
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