CN204973893U - Nanometer brium carbonate carbonization reaction unit - Google Patents
Nanometer brium carbonate carbonization reaction unit Download PDFInfo
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- CN204973893U CN204973893U CN201520668901.8U CN201520668901U CN204973893U CN 204973893 U CN204973893 U CN 204973893U CN 201520668901 U CN201520668901 U CN 201520668901U CN 204973893 U CN204973893 U CN 204973893U
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Abstract
The utility model relates to a nanometer brium carbonate carbonization reaction unit belongs to the chemical engineering technology field, including carbonization reation kettle, (mixing) shaft, agitator motor, an air distributor and gas absorption device, carbonization reation kettle top is equipped with liquid inlet, gas feed and gas outlet, and the bottom is equipped with the liquid discharge gate, and interior side wall department is equipped with the baffle, outer wall with dissection, and intermediate layer and the external wall vacuole formation of reation kettle cauldron, let in heat transfer medium in the cavity, the upper end of (mixing) shaft links to each other with the agitator motor transmission shaft, and upper portion, middle part and the lower part of (mixing) shaft are equipped with stirring paddle leaf respectively, an air distributor lies in the reation kettle lower part, and the connecting pipe is continuous with gas feed through admitting air, and gas absorption device links to each other through exhaust connection and gas outlet. The utility model discloses messenger gas distribution is even, the bubble is fine, can synthesize the nanometer brium carbonate that the particle diameter is little and the distribution range is narrow to carbonization tail gas assimilation effect is good, avoids the toxic gas to cause the injury to the health of human body.
Description
Technical field
The utility model relates to a kind of nano barium carbonate carburizing reagent device, belongs to chemical technology field.
Background technology
Brium carbonate is widely used in the fields such as optical glass, pottery, electronics, chemical industry, Water warfare and three-protection design as important industrial chemicals.Along with the development of science and technology, for the crystal shape of brium carbonate material, different use fields requires that difference is comparatively large, as column brium carbonate good dispersion, seldom occur excess agglomeration phenomenon, be used for general industry industry; Spherical brium carbonate is used for the production of PTC thermistor element, and capacitor can be made to have high dielectric constant and temperature characterisitic; Needle-like superfine brium carbonate is used for the filler etc. such as microelectronics industry and plastics, rubber, coating.The Particles of Barium Carbonate now synthesized has wire, sheet, spherical, dumbbell shaped, cotton-shaped etc., but particle diameter is very large, at several micron even tens microns, wherein column, spherical Particles of Barium Carbonate are comparatively rare, therefore, pattern and size controlled, the superfine powder be evenly distributed becomes study hotspot prepared by brium carbonate.
Due to carbonizatin method produce barium carbonate product steady quality, production cost is low, thus adopted by brium carbonate manufacturer of China.Barite and coal are prepared mixing by weight, after pulverizing, sieving, adds rotary furnace continuously, under 900 ~ 1200 DEG C of high temperature, carry out reduction reaction, generate thick barium sulphide melt.After thick barium sulphide leaching, put into settling tank clarification, clarified solution is squeezed in carbonators, carbon dioxide obtained for limekiln is imported in carbonators through washing, separation, compression simultaneously, carry out carburizing reagent, obtained barium carbonate slurry, filtration, oven dry are barium carbonate finished product.
Barium sulfide solution and carbon dioxide occur to react as follows in carbonators:
Ba(OH)
2+CO
2=BaCO
3+H
2O
Ba(SH)
2+CO
2+H
2O=BaCO
3+2H
2S
BaS+CO
2+H
2O=BaCO
3+2H
2S
Carbonization technique is the link of most critical in nano barium carbonate production process, is also the master operation producing toxic gas in whole brium carbonate production process, containing the H of 36% in waste gas
2s gas.
According to the difference of carbonization reactor prepared by nano barium carbonate, interval bubbling style reactor, stirring reactor, continuously spray type reactor and hypergravity formula reactor etc. can be divided into.It is adopt barium sulfide solution to pass into carbonators that tradition brium carbonate is produced, carbonators plural serial stage, carries out carburizing reagent by passing into kiln gas bubbling at the bottom of tower, because under this technique, brium carbonate crystal development is comparatively complete, domain size distribution is wide, there is larger particles and brium carbonate aggregate.
Utility model content
The technical problems to be solved in the utility model is: overcome the brium carbonate crystal particle diameter distribution that existing brium carbonate production technology exists wide, and granularity is comparatively large and there is the defect of brium carbonate aggregate, provides a kind of nano barium carbonate carburizing reagent device.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of nano barium carbonate carburizing reagent device, comprises carburizing reagent still, shaft, stirring motor, the first gas distributor and gas absorbing device; Described carburizing reagent still top is provided with liquid inlet opening, gas feed and gas vent, bottom is provided with liquid outlet opening, inner side edge wall place is provided with baffle plate, outer wall is provided with interlayer, described interlayer and reactor kettle outer wall form cavity, pass into heat transfer medium in described cavity, the upper end of described shaft is connected with stirring motor power transmission shaft, and the upper, middle and lower of shaft is respectively equipped with stirrer paddle; Described first gas distributor is positioned at reactor bottom, is connected with gas feed by inlet pipe connection, and described gas absorbing device is connected with gas vent by exhaust connection.
As preferably, the inwall of described carburizing reagent kettle is provided with at least four baffle plates, described baffle plate is rectangle, and four limits are all welded on inner wall of kettle.
As preferably, the upper strata stirrer paddle being located at shaft top is froth breaking blade, for rotating snakelike grid type blade; The middle level stirrer paddle be located in the middle part of shaft is pusher hinged joint blade; The lower floor's stirrer paddle being located at shaft bottom is straight leaf disc turbine type blade; Three layers of stirrer paddle layering are arranged in a crossed manner.
As preferably, the first gas distributor in described carburizing reagent still is Bubbled stone.
As preferably, described Bubbled stone is in the form of annular discs, and surface and sidewall have minute aperture.
As preferably, described gas absorbing device comprises the aspirator bottle of an aspirator bottle or two or more series connection.
As preferably, described aspirator bottle lower inside is provided with the second gas distributor, and described second gas distributor is connected with the air inlet pipe of aspirator bottle.
As preferably, described second gas distributor is discoid Bubbled stone, and its surface and sidewall have minute aperture.
Reaction unit of the present utility model is rational in infrastructure, stirrer paddle is established respectively in the upper, middle and lower of shaft, its at the middle and upper levels stirrer paddle the foam produced in carburizing reagent and bubble can be smashed, middle level stirrer paddle is Radial Flow, the formation at dead angle can be prevented, promote the heat transfer of reaction, lower floor's stirrer paddle dispersibles gas, effectively prevent gas short circuit.Gas distributor is arranged on carburizing reagent still bottom, in course of reaction, carries out bubbling to the mixture of bottom, ensures that material fully mixes in paddle stirring dead angle place can allow carburizing reagent still, can effectively improve the quality of products.Compared with prior art, stirrer paddle of the present utility model, baffle plate and gas distributor be combined with each other, and greatly strengthen gas-liquid mass transfer efficiency, improve the utilization rate of gas, facilitate the brilliant caryogenic homogenization of nano barium carbonate and granuloplastic miniaturization.And by gas absorbing device, tail gas is absorbed, when brium carbonate is prepared in laboratory, avoid the toxic gases such as human contact's hydrogen sulfide.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In figure: 1 stirring motor, 2 liquid inlet openings, 3 upper strata stirrer paddles, 4 shafts, 5 interlayers, 6 middle level stirrer paddles, 7 baffle plates, 8 lower floor's stirrer paddles, 9 first gas distributors, 10 liquid outlet openings, 11 carburizing reagent stills, 12 inlet pipe connections, 13 gas feeds, 14 gas vents, 15 exhaust connections, 16 ground glass stoppers, 17 air inlet pipe, 18 escape pipes, 19 aspirator bottles (GAS ABSORPTION bottle), 20 second gas distributors.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
As shown in Figure 1, a kind of nano barium carbonate carburizing reagent device disclosed in the utility model embodiment, comprises carburizing reagent still 11, shaft 4 and stirring motor 1, first gas distributor 9 and gas absorbing device.Carburizing reagent still 11 top is provided with liquid inlet opening 2, gas feed 13 and gas vent 14, and reactor 11 inner side edge wall place is provided with baffle plate 7, and liquid outlet opening 10 is arranged on bottom reactor 11 body.The power transmission shaft of stirring motor 1 is connected with the upper end of shaft 4, and the upper, middle and lower of shaft 4 is respectively equipped with stirrer paddle, and stirrer paddle level is arranged on shaft 4.First gas distributor 9 is arranged on the bottom in reactor 11, is connected, has good gas dispersion effect with gas feed 13 by inlet pipe connection 12.Carburizing reagent still 11 kettle outer wall is provided with interlayer 5, and interlayer 5 and reactor 11 kettle outer wall form cavity, pass into heat transfer medium, can lead to hot water, steam or conduction oil, provide carbonization reactor institute calorific requirement in cavity.Carburizing reagent still gas vent 14 is connected with gas absorbing device 19 by exhaust connection 15, absorbs the hydrogen sulfide gas in carbonization tail gas.
The inwall of carburizing reagent still 11 body is provided with at least four baffle plates 7, and baffle plate 7 is rectangle, and four limits are all welded on inner wall of kettle.Upper strata stirrer paddle 3 is froth breaking blade, for rotating snakelike grid type blade, the foam produced is smashed in carburizing reagent.Middle level stirrer paddle 6 is pusher hinged joint blade, is Radial Flow, can prevents the formation at dead angle, promotes the heat transfer of reaction.Lower floor's stirrer paddle 8 is straight leaf disc turbine type blade, and the disk occuping center by forms with six vertical blades equidistantly distributed in disk perimeter, and have Strong shear feature, dispersible gas under high rotating speed, disk can prevent gas short circuit.Because straight leaf disc turbine type blade effectively prevent gas short circuit, thus increase the gas time of staying in the solution, reach the object strengthening gas-liquid mass transferring.The layering of upper, middle and lower-ranking stirrer paddle is arranged in a crossed manner.
Carburizing reagent relates to airwater mist cooling, and the size in gas-liquid contact face directly affects carbonation rate.Gas bubbles size and gas distributor form and air bubbles dispersion agent kind closely related, reduce gas bubble diameters and can increase solution-air contact surface, promote the carrying out of carburizing reagent and the formation of nano barium carbonate.First gas distributor 9 of the present embodiment adopts commercially available Bubbled stone, in the form of annular discs, surface and sidewall have minute aperture, aperture 0.1 ~ 0.5mm, its structure is simple, is conducive to gas dispersion and becomes micro air bubble, can increase the gas-liquid mass transferring in solution-air contact area, strengthening carbonisation, make that distribution of gas is even, bubble is fine, the little and nano barium carbonate of narrow distribution range of particle diameter can be synthesized.
Gas absorbing device is in series (as 2 ~ 3) by one or more aspirator bottle 19, and aspirator bottle 19, built with sodium hydroxide solution, is used for absorbing the hydrogen sulfide gas in carbonization tail gas.GAS ABSORPTION bottle 19 establishes air inlet pipe 17 and escape pipe 18, bottleneck is by ground glass stopper 16 jam-pack, in bottle, bottom is provided with the second gas distributor 20, be connected with the second gas distributor 20 bottom air inlet pipe 17, equally, second gas distributor 20 can be commercially available Bubbled stone, in the form of annular discs, and surface and sidewall have minute aperture.
The method example that the nano barium carbonate carburizing reagent device adopting the present embodiment to provide prepares nano barium carbonate product is as follows:
Example one
Barite and coal are mixed with the proportioning of weight ratio 100:25, adds continuously in high temperature furnace after pulverizing, sieving, carry out calcining reduction at 1000 DEG C, obtained thick barium sulphide melt.Thick barium sulphide melt is put into 85 DEG C of hot water leachings 2 hours, filter, obtain the barium sulphide saltwater brine that concentration is 135g/L, its temperature is maintained 85 DEG C.By described barium sulfide solution, join carburizing reagent still 11 from the liquid inlet opening 2 of carburizing reagent device.Start stirring motor 1, rotating speed is 500 revs/min.Carbon dioxide enters the first gas distributor 9, first gas distributor 9 by the gas feed 13 of reactor 11 makes gas bubbles be uniformly dispersed.Under the effect of stirrer paddle and baffle plate 7, carbon dioxide and barium sulfide solution generation carburizing reagent.In interlayer 5, logical hot water, provides carburizing reagent institute calorific requirement, makes solution in carburizing reagent still 11 maintain 90 DEG C.Carburizing reagent terminates rear carbon dioxide and discharges from the gas vent 14 of reactor head.Carbonization tail gas absorbs a small amount of H in tail gas through GAS ABSORPTION bottle 19
2s gas enters in air.Ripe slurry after carburizing reagent, is discharged by liquid outlet opening 10, more after filtration, the postprocessing working procedures such as dry, obtain nano barium carbonate product.Product average grain diameter is little, is about 100nm, and product is column.
Example two
Barite and coal are mixed with the proportioning of weight ratio 100:25, adds continuously in high temperature furnace after pulverizing, sieving, carry out calcining reduction at 1000 DEG C, obtained thick barium sulphide melt.Thick barium sulphide melt is put into 85 DEG C of hot water leachings 2 hours, filter, obtain the barium sulphide saltwater brine that concentration is 135g/L, its temperature is maintained 85 DEG C.By described barium sulfide solution, to join carburizing reagent still 11 from the liquid inlet opening 2 of carburizing reagent device.Add oleic acid chemical additives in carburizing reagent still, start stirring motor 1, rotating speed is 500 revs/min.Carbon dioxide enters the first gas distributor 9, first gas distributor 9 by the gas feed 13 of reactor 11 makes gas bubbles be uniformly dispersed.Under the effect of stirrer paddle and baffle plate 7, carbon dioxide and barium sulfide solution generation carburizing reagent.In interlayer 5, logical hot water, provides carburizing reagent institute calorific requirement, makes solution in carburizing reagent still 11 maintain 95 DEG C.Carburizing reagent terminates rear carbon dioxide and discharges from the gas vent 14 of reactor head.Carbonization tail gas absorbs a small amount of H in tail gas through GAS ABSORPTION bottle 19
2s gas enters in air.Ripe slurry after carburizing reagent, is discharged by liquid outlet opening 10, more after filtration, the postprocessing working procedures such as dry, obtain nano barium carbonate product.Product average grain diameter is little, is about 50nm, for spherical.
Example three
Barite and coal are mixed with the proportioning of weight ratio 100:25, adds continuously in high temperature furnace after pulverizing, sieving, carry out calcining reduction at 1000 DEG C, obtained thick barium sulphide melt.Thick barium sulphide melt is put into 90 DEG C of hot water leachings 2 hours, filter, obtain the barium sulphide saltwater brine that concentration is 135g/L, its temperature is maintained 90 DEG C.By described barium sulfide solution, join carburizing reagent still 11 from the liquid inlet opening 2 of carburizing reagent device.Add oleic acid chemical additives in carburizing reagent still, start stirring motor 1, rotating speed is 500 revs/min.Carbon dioxide enters the first gas distributor 9, first gas distributor 9 by the gas feed 13 of reactor 11 makes gas bubbles be uniformly dispersed.Under the effect of stirrer paddle and baffle plate 7, carbon dioxide and barium sulfide solution generation carburizing reagent.In interlayer 5, logical hot water, provides carburizing reagent institute calorific requirement, makes solution in carburizing reagent still 11 maintain 95 DEG C.Carburizing reagent terminates rear carbon dioxide and discharges from the gas vent 14 of reactor head.Carbonization tail gas absorbs a small amount of H in tail gas through GAS ABSORPTION bottle 19
2s gas enters in air.Ripe slurry after carburizing reagent, is discharged by liquid outlet opening 10, more after filtration, the postprocessing working procedures such as dry, obtain nano barium carbonate product.Product average grain diameter is little, is about 30nm, for spherical.
To sum up, it is wide that the utility model effectively overcomes the brium carbonate crystal particle diameter distribution that existing brium carbonate production technology exists, and granularity is comparatively large and there is the defect of brium carbonate aggregate, can synthesize the little and nano barium carbonate of narrow distribution range of particle diameter, and H in carbonization tail gas
2the good absorbing effect of S gas, avoids the health of toxic gas to human body to damage.The above is only preferred embodiment of the present utility model; should be understood that; for those skilled in the art, under the prerequisite not departing from the utility model principle, the amendment done, replacement or improvement also should be considered as protection domain of the present utility model.
Claims (8)
1. a nano barium carbonate carburizing reagent device, is characterized in that: comprise carburizing reagent still (11), shaft (4), stirring motor (1), the first gas distributor (9) and gas absorbing device; Described carburizing reagent still (11) top is provided with liquid inlet opening (2), gas feed (13) and gas vent (14), bottom is provided with liquid outlet opening (10), inner side edge wall place is provided with baffle plate (7), outer wall is provided with interlayer (5), described interlayer (5) and reactor (11) kettle outer wall form cavity, heat transfer medium is passed in described cavity, the upper end of described shaft (4) is connected with stirring motor (1) power transmission shaft, and the upper, middle and lower of shaft (4) is respectively equipped with stirrer paddle; Described first gas distributor (9) is positioned at reactor (11) bottom, is connected with gas feed (13) by inlet pipe connection (12), and described gas absorbing device (19) is connected with gas vent (14) by exhaust connection (15).
2. a kind of nano barium carbonate carburizing reagent device according to claim 1, is characterized in that: the inwall of described carburizing reagent still (11) body is provided with at least four baffle plates (7), and described baffle plate (7) is rectangle, and four limits are all welded on inner wall of kettle.
3. a kind of nano barium carbonate carburizing reagent device according to claim 1, is characterized in that: the upper strata stirrer paddle (3) being located at shaft (4) top is froth breaking blade, for rotating snakelike grid type blade; The middle level stirrer paddle (6) being located at shaft (4) middle part is pusher hinged joint blade; Be located at lower floor's stirrer paddle (8) of shaft (4) bottom for straight leaf disc turbine type blade; Three layers of stirrer paddle layering are arranged in a crossed manner.
4. a kind of nano barium carbonate carburizing reagent device according to claim 1, is characterized in that: the first gas distributor (9) in described carburizing reagent still (11) is Bubbled stone.
5. a kind of nano barium carbonate carburizing reagent device according to claim 4, is characterized in that: described Bubbled stone is in the form of annular discs, and surface and sidewall have minute aperture.
6. a kind of nano barium carbonate carburizing reagent device according to claim 1, is characterized in that: described gas absorbing device comprises the aspirator bottle of an aspirator bottle or two or more series connection.
7. a kind of nano barium carbonate carburizing reagent device according to claim 6, it is characterized in that: described aspirator bottle (19) lower inside is provided with the second gas distributor (20), described second gas distributor (20) is connected with the air inlet pipe (17) of aspirator bottle (19).
8. a kind of nano barium carbonate carburizing reagent device according to claim 7, is characterized in that: described second gas distributor (20) is discoid Bubbled stone, and its surface and sidewall have minute aperture.
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| CN106497141A (en) * | 2016-11-30 | 2017-03-15 | 华南理工大学 | A kind of apparatus and method for fine coal gray surface micro/nano level carbonization modification |
| CN107551978A (en) * | 2017-10-18 | 2018-01-09 | 广州植华生物科技有限公司 | A kind of high shear reactor |
| CN109160530A (en) * | 2018-09-21 | 2019-01-08 | 岳阳林纸股份有限公司 | A kind of white clay continuous carbonization slot |
| CN110386611A (en) * | 2019-08-27 | 2019-10-29 | 东华工程科技股份有限公司 | The system and method for continuous production battery-level lithium carbonate |
| CN111365716A (en) * | 2020-03-19 | 2020-07-03 | 上海亮慧环保机械有限公司 | Carbonization furnace and carbonization incineration system |
| CN111992175A (en) * | 2020-08-28 | 2020-11-27 | 衡阳集建聚鑫化工有限公司 | Nano barium carbonate carbonization reaction device |
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| CN113479923A (en) * | 2021-08-12 | 2021-10-08 | 安徽中创电子信息材料有限公司 | Preparation device and preparation method of high-purity barium carbonate |
| CN116217171A (en) * | 2023-02-28 | 2023-06-06 | 武汉理工大学 | Rust-resistant fiber cement board carbonization reaction kettle and manufacturing method |
| CN116425178A (en) * | 2022-08-02 | 2023-07-14 | 兰州交通大学 | Method for preparing high-purity lithium solution from salt lake lithium ore |
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- 2015-08-31 CN CN201520668901.8U patent/CN204973893U/en active Active
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| CN106497141A (en) * | 2016-11-30 | 2017-03-15 | 华南理工大学 | A kind of apparatus and method for fine coal gray surface micro/nano level carbonization modification |
| CN107551978A (en) * | 2017-10-18 | 2018-01-09 | 广州植华生物科技有限公司 | A kind of high shear reactor |
| CN109160530A (en) * | 2018-09-21 | 2019-01-08 | 岳阳林纸股份有限公司 | A kind of white clay continuous carbonization slot |
| CN110386611B (en) * | 2019-08-27 | 2023-09-19 | 东华工程科技股份有限公司 | System and method for continuously producing battery-grade lithium carbonate |
| CN110386611A (en) * | 2019-08-27 | 2019-10-29 | 东华工程科技股份有限公司 | The system and method for continuous production battery-level lithium carbonate |
| CN111365716A (en) * | 2020-03-19 | 2020-07-03 | 上海亮慧环保机械有限公司 | Carbonization furnace and carbonization incineration system |
| CN111992175A (en) * | 2020-08-28 | 2020-11-27 | 衡阳集建聚鑫化工有限公司 | Nano barium carbonate carbonization reaction device |
| CN112717866A (en) * | 2020-12-10 | 2021-04-30 | 安徽广信农化股份有限公司 | Synthesis process of dimethylamine hydrochloride |
| CN113479923A (en) * | 2021-08-12 | 2021-10-08 | 安徽中创电子信息材料有限公司 | Preparation device and preparation method of high-purity barium carbonate |
| CN116425178A (en) * | 2022-08-02 | 2023-07-14 | 兰州交通大学 | Method for preparing high-purity lithium solution from salt lake lithium ore |
| CN116217171A (en) * | 2023-02-28 | 2023-06-06 | 武汉理工大学 | Rust-resistant fiber cement board carbonization reaction kettle and manufacturing method |
| CN116654967A (en) * | 2023-06-01 | 2023-08-29 | 湖北展鹏电子材料有限公司 | Preparation method of spherical nano barium carbonate easy for solid-liquid separation |
| CN116654967B (en) * | 2023-06-01 | 2024-01-30 | 湖北展鹏电子材料有限公司 | Preparation method of spherical nano barium carbonate easy for solid-liquid separation |
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