CN210457507U - System for adopt spray roasting method production cobaltosic oxide - Google Patents
System for adopt spray roasting method production cobaltosic oxide Download PDFInfo
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- CN210457507U CN210457507U CN201921313792.2U CN201921313792U CN210457507U CN 210457507 U CN210457507 U CN 210457507U CN 201921313792 U CN201921313792 U CN 201921313792U CN 210457507 U CN210457507 U CN 210457507U
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The utility model discloses an adopt system of spraying roasting method production cobaltosic oxide, it is low mainly to solve cobaltosic oxide production preparation efficiency, the unable effective processing's of waste gas dust and waste liquid problem of preparation production. The system comprises a raw material tank for storing the cobalt chloride solution, a preconcentrator communicated with the raw material tank, an acid storage tank communicated with the preconcentrator, a roasting furnace communicated with the preconcentrator, a cyclone dust collector with one end communicated with the roasting furnace and the other end communicated with the preconcentrator, a collecting device communicated with the roasting furnace, and a waste gas recovery processing device communicated with the preconcentrator. The utility model discloses a production system is applicable to the spray roasting method and prepares cobaltosic oxide, and preparation is effectual, the result degree is higher, production efficiency is high, and the process temperature of production is low, and the power consumption is few, and the energy saving carries out recovery processing through the waste gas waste dust of waste gas recovery processing device in to the production process simultaneously, makes the polluted gas in the preparation process reach emission standard, energy saving.
Description
Technical Field
The utility model relates to a cobaltosic oxide production preparation technical field, specifically speaking relates to a system for adopt spraying roasting method production cobaltosic oxide.
Background
Cobaltosic oxide (Co)3O4) The lithium cobalt oxide is an important functional material, is a main raw material for preparing the lithium cobalt oxide serving as the anode material of the lithium ion battery, and is widely applied to the fields of supercapacitors, ceramics, catalysts and the like. The cobaltosic oxide is mainly prepared by spraying metal oxideIs prepared by a fog roasting method.
The spray roasting method is a material preparation method with development prospect, and compared with the traditional preparation technology, the spray roasting method has many advantages: such as controllable product particle size, higher product purity, good particle dispersibility, high production efficiency, low temperature in the process, and the like.
In the preparation process of cobaltosic oxide, a large amount of waste gas dust and waste water are generated, and if the waste gas dust and the waste water are not treated, the environment is greatly polluted. Meanwhile, a large amount of hydrogen chloride gas is generated in the preparation process, and the hydrogen chloride gas is dissolved in water to form acid which can be recycled.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an adopt system of spraying roasting method production cobaltosic oxide, carry out recovery processing, environmental protection to waste gas dust and the waste water that produces in the preparation process when improving cobaltosic oxide production preparation efficiency.
In order to achieve the above object, the utility model adopts the following technical scheme:
a system for producing cobaltosic oxide by adopting a spray roasting method comprises a raw material tank for storing a cobalt chloride solution, a preconcentrator communicated with the raw material tank and used for concentrating the cobalt chloride solution, an acid storage tank communicated with the preconcentrator and used for adding an acid solution into the preconcentrator, a roasting furnace communicated with the preconcentrator and used for spray roasting the concentrated cobalt chloride solution, a cyclone dust collector, a collecting device and a waste gas recovery and treatment device, wherein one end of the cyclone dust collector is communicated with the roasting furnace, the other end of the cyclone dust collector is communicated with the preconcentrator and used for removing dust in roasting furnace gas, the collecting device is communicated with the roasting furnace and used for collecting cobaltosic oxide powder, and the waste gas recovery and treatment device is communicated with the preconcentrator.
Further, the collecting device comprises a powder bin communicated with the bottom of the roasting furnace, a conveying fan and a finished product packaging machine, wherein the conveying fan and the finished product packaging machine are both communicated with the powder bin.
Further, a sintering plate dust remover is arranged at the top of the powder bin.
Furthermore, the waste gas recovery processing device comprises an absorption tower which is communicated with the pre-concentrator and is used for absorbing HCl in the roasting furnace gas to form regenerated acid, a heat exchanger which is communicated with the absorption tower and is used for cooling the roasting furnace gas, a rear Venturi dust collector which is communicated with the heat exchanger and is used for dedusting the cooled roasting furnace gas, a waste gas fan which is communicated with the rear Venturi dust collector and is used for providing negative pressure for the system, a primary washing tower which is communicated with the waste gas fan and is used for washing the roasting furnace gas, an alkali liquor washing tower which is communicated with the primary washing tower, a water station which is used for adding desalted water to the rear Venturi dust collector, the primary washing tower and the alkali liquor washing tower, and an alkali liquor adding system and a waste gas emptying chimney which are communicated with the alkali liquor washing tower; wherein, the rear Venturi dust collector and the primary washing tower are communicated with the heat exchanger, and the absorption tower is communicated with the acid storage tank.
Furthermore, the alkali liquor adding system comprises an alkali liquor storage tank communicated with the alkali liquor washing tower, a stirrer and a liquid level meter which are arranged in the alkali liquor storage tank, and an alkali liquor metering pump for pumping alkali liquor into the alkali liquor washing tower.
Furthermore, the gas and combustion-supporting air inlet of the roasting furnace, the cobalt chloride solution liquid inlet of the preconcentrator and the cobaltosic oxide conveying air inlet of the powder bin are respectively provided with a filter.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) the utility model discloses a production system is applicable to the spray roasting method and prepares cobaltosic oxide, and preparation is effectual, the result degree is higher, production efficiency is high, and the process temperature of production is low, and the power consumption is few, and the energy saving carries out recovery processing through the waste gas waste dust of waste gas recovery processing device in to the production process simultaneously, makes the polluted gas in the preparation process reach emission standard, energy saving.
(2) The utility model discloses a set up the recovery tower and store up the acid tank, retrieve the hydrogen chloride gas that produces in the cobaltosic oxide preparation process and form regeneration acid, avoid the direct polluted air that discharges of hydrogen chloride gas on the one hand, reach the problem of environmental protection, on the other hand the regeneration acid of retrieving is utilized in letting in the precondensator once more, practices thrift the cost.
(3) The utility model discloses cyclone and back venturi scrubber's setting realizes that exhaust emission's two-stage removes dust, and dust removal effect is also better when reducing single dust remover work load.
(4) The utility model discloses gas of burning a burning furnace and combustion air inlet, the cobaltous chloride solution inlet of preconcentrator and the cobaltosic oxide of powder storehouse are carried air inlet department and all are provided with the filter over a slow fire, prevent that external impurity from getting into, cause the pollution to the preparation material.
Drawings
Fig. 1 is a system block diagram of the present invention.
FIG. 2 is a schematic sectional view of the alkali liquor feeding system of the present invention.
Wherein, the names corresponding to the reference numbers are:
1-a raw material tank, 2-a pre-concentrator, 3-an acid storage tank, 4-a roasting furnace, 5-a cyclone dust collector, 6-a collecting device, 7-a waste gas recovery processing device, 8-a powder bin, 9-a conveying fan, 10-a finished product packaging machine, 11-an absorption tower, 12-a heat exchanger, 13-a rear Venturi dust collector, 14-a waste gas fan, 15-a primary washing tower, 16-an alkali liquor washing tower, 17-a water station, 18-an alkali liquor adding system, 19-a waste gas emptying chimney, 20-an alkali liquor storage tank, 21-a stirrer, 22-a liquid level meter and 23-an alkali liquor metering pump.
Detailed Description
The present invention will be further described with reference to the following description and examples, which include but are not limited to the following examples.
Examples
As shown in fig. 1 and 2, the utility model discloses an adopt system of spray roasting method production cobaltosic oxide, including the head tank 1 of storage cobaltous chloride solution, still include the preconcentrator 2 that is used for carrying out the concentration to cobaltous chloride solution with head tank 1 intercommunication, be used for adding acid solution's acid storage tank 3 to preconcentrator 2 with preconcentrator 2 intercommunication, the roast stove 4 that is used for carrying out the spray roasting to the concentrated cobaltous chloride solution with preconcentrator 2 intercommunication, one end and the cyclone 5 that roast 4 intercommunication and the other end and preconcentrator 2 intercommunication are used for cleaing away the dust in the roasting furnace gas, the collection device 6 that is used for cobaltosic oxide powder to collect with roasting stove 4 intercommunication to and the exhaust gas recovery processing apparatus 7 that communicates with preconcentrator 2.
When the device is used, the cobalt chloride solution is filtered from a raw material tank through a filter to remove impurities, then the cobalt chloride solution is input into a preconcentrator 2, meanwhile, fuel gas and combustion air filtered by the filter are introduced into a roasting furnace to heat roasting gas, the cobalt chloride solution concentrated by the preconcentrator 2 is pressurized and sprayed into the roasting furnace 4 through a feeding pump of the roasting furnace 4 to be sprayed and roasted, the spraying is atomized by high pressure and filtered compressed air, the reaction temperature in the roasting furnace is 600-900 ℃, and the cobalt chloride is decomposed into cobaltosic oxide, HCl gas and water vapor. The preconcentrator 2 reduces the temperature of the roasting furnace gas from 300-500 ℃ to 95 ℃ at one time, concentrates the cobalt chloride solution by 20-35% and removes dust in the roasting furnace gas. Utilize collection device 6 to collect the encapsulation to cobaltosic oxide powder finished product, waste gas recovery processing device 7 carries out recovery processing to waste gas, avoids the polluted environment.
The collecting device 6 comprises a powder bin 8 communicated with the bottom of the roasting furnace, a conveying fan 9 and a finished product packaging machine 10, wherein the conveying fan and the finished product packaging machine are both communicated with the powder bin 8, and the finished product packaging machine 10 adopts a ton bag packaging machine to package cobaltosic oxide. And a sintered plate dust remover is arranged at the top of the powder bin 8. The cobaltosic oxide falls from the bottom of the roasting furnace 4, and the cobaltosic oxide powder is conveyed into the powder bin 8 by negative pressure provided by a conveying fan 9. The conveying air is filtered by a filter, the cobaltosic oxide is cooled to below 50 ℃ by the conveying air at the same time, a sintering plate dust remover is arranged at the top of the powder bin, and a finished product packaging machine 10 at the bottom of the powder bin adopts a ton bag packaging machine to package the cobaltosic oxide.
In order to enable the prepared exhaust gas to reach the emission standard, the exhaust gas recovery processing device 7 comprises an absorption tower 11 which is communicated with the pre-concentrator 2 and is used for absorbing HCl in roasting furnace gas to form regenerated acid, a heat exchanger 12 which is communicated with the absorption tower 11 and is used for cooling the roasting furnace gas, a rear Venturi dust collector 13 which is communicated with the heat exchanger 12 and is used for removing dust from the cooled roasting furnace gas, an exhaust gas fan 14 which is communicated with the rear Venturi dust collector 13 and is used for providing negative pressure for the system, a primary washing tower 15 which is communicated with the exhaust gas fan 14 and is used for washing the roasting furnace gas, an alkali liquor washing tower 16 which is communicated with the primary washing tower 15, a water station 17 which is used for adding desalted water to the rear Venturi dust collector 13, the primary washing tower 15 and the alkali liquor washing tower 16, and an alkali liquor adding system 18 and an exhaust gas evacuation chimney 19 which are communicated with the alkali liquor washing tower; wherein, the rear Venturi dust collector 13 and the primary washing tower 15 are both communicated with the heat exchanger 12, and the absorption tower 11 is communicated with the acid storage tank 3. The roasting furnace gas (HCl, H2O, combustion waste gas and dust) is discharged from the top of the roasting furnace 4, enters a cyclone dust collector 5 for dust removal, and then enters a preconcentrator 2 for temperature reduction and further dust removal. The roasting furnace gas from the preconcentrator 2 enters an absorption tower 11 to absorb HCl gas therein to form regenerated acid, and the regenerated acid can be recycled. The roasting furnace gas absorbed by the absorption tower 11 enters a heat exchanger 12, the temperature of the roasting furnace gas is reduced to be below 40 ℃, then the roasting furnace gas enters a rear Venturi dust collector 13, and desalinized water is used for assisting dust removal in the rear Venturi dust collector 13, so that dust and water liquid particles in the roasting furnace gas are further removed. The used desalted water also enters the absorption tower 11 for HCl gas reabsorption, and the waste gas fan 14 provides negative pressure for the whole system.
In order to reach the emission index, a washing tower 15 and an alkali liquor washing tower 16 are designed behind the waste gas fan 14, and the tail gas of the roasting furnace is washed again to ensure that the emission reaches the standard. The alkali liquor adding system 18 comprises an alkali liquor storage tank 20 communicated with the alkali liquor washing tower 16, a stirrer 21 and a liquid level meter 22 which are arranged in the alkali liquor storage tank 20, and an alkali liquor metering pump 23 used for pumping alkali liquor into the alkali liquor washing tower 16, and desalted water is added into the primary washing tower 15 and the alkali liquor washing tower 16 to assist washing, and the desalted water after utilization also enters the absorption tower 11 to be subjected to HCl gas reabsorption.
The tail gas passing through the washing tower is discharged out of the room through a waste gas exhaust chimney 19, the temperature of the discharged flue gas is lower than 40 ℃, the water vapor content is lower than 10%, and other indexes meet the national emission standard.
In order to ensure the purity of products, elements such as iron, zinc, copper and the like need to be prevented from entering the devices of the whole system, for the communication pipelines among all the devices, SIC, ceramics, Al2O3 and the like are lined in a high-temperature conveying pipeline, PPH is adopted as a low-temperature pipeline, and stainless steel materials are required to be adopted at minimum.
Through the design, the utility model discloses a production system is applicable to the spraying roasting method and prepares cobaltosic oxide, and preparation effect is good, the result degree is higher, production efficiency is high, and the process temperature of production is low, and the power consumption is few, and the energy saving carries out recovery processing through the waste gas waste dust of exhaust gas recovery processing device in to the production process simultaneously, makes the polluted gas in the preparation process reach emission standard, the energy saving. Therefore, the method has high use value and popularization value.
The above embodiment is only one of the preferred embodiments of the present invention, and should not be used to limit the protection scope of the present invention, but all the insubstantial changes or modifications made in the spirit and the idea of the main design of the present invention, the technical problems solved by the embodiment are still consistent with the present invention, and all should be included in the protection scope of the present invention.
Claims (6)
1. The system for producing the cobaltosic oxide by adopting the spray roasting method comprises a raw material tank (1) for storing a cobalt chloride solution, and is characterized by further comprising a preconcentrator (2) communicated with the raw material tank (1) and used for concentrating the cobalt chloride solution, an acid storage tank (3) communicated with the preconcentrator (2) and used for adding an acid solution into the preconcentrator (2), a roasting furnace (4) communicated with the preconcentrator (2) and used for spray roasting the concentrated cobalt chloride solution, a cyclone dust collector (5) with one end communicated with the roasting furnace (4) and the other end communicated with the preconcentrator (2) and used for removing dust in roasting furnace gas, a collecting device (6) communicated with the roasting furnace (4) and used for collecting cobaltosic oxide powder, and a waste gas recovery processing device (7) communicated with the preconcentrator (2).
2. The system for producing cobaltosic oxide by the spray roasting method according to claim 1, wherein the collecting device (6) comprises a powder bin (8) communicated with the bottom of the roasting furnace, and a conveying fan (9) and a finished product packaging machine (10) both communicated with the powder bin (8).
3. The system for producing cobaltosic oxide by the spray roasting method according to claim 2, wherein a sintered plate dust remover is arranged at the top of the powder bin (8).
4. The system for producing cobaltosic oxide by adopting the spray roasting method according to claim 3, wherein the waste gas recovery processing device (7) comprises an absorption tower (11) communicated with the preconcentrator (2) and used for absorbing HCl in roasting furnace gas to form regenerated acid, a heat exchanger (12) communicated with the absorption tower (11) and used for cooling the roasting furnace gas, a rear Venturi dust collector (13) communicated with the heat exchanger (12) and used for dedusting the cooled roasting furnace gas, a waste gas fan (14) communicated with the rear Venturi dust collector (13) and used for providing negative pressure for the system, a primary washing tower (15) communicated with the waste gas fan (14) and used for washing the roasting furnace gas, an alkali washing tower (16) communicated with the primary washing tower (15), and a water station (17) used for adding desalted water to the rear Venturi dust collector (13), the primary washing tower (15) and the alkali washing tower (16), an alkali liquor adding system (18) and a waste gas emptying chimney (19) which are both communicated with the alkali liquor washing tower (16); wherein, the rear Venturi dust collector (13) and the primary washing tower (15) are both communicated with the heat exchanger (12), and the absorption tower (11) is communicated with the acid storage tank (3).
5. The system for producing cobaltosic oxide by the spray roasting method according to claim 4, wherein the lye addition system (18) comprises a lye storage tank (20) communicated with the lye washing tower (16), a stirrer (21) and a liquid level meter (22) both arranged in the lye storage tank (20), and a lye metering pump (23) for pumping lye into the lye washing tower (16).
6. The system for producing cobaltosic oxide by the spray roasting method according to claim 5, wherein the gas and combustion air inlet of the roasting furnace (4), the cobalt chloride solution inlet of the preconcentrator (2) and the cobaltosic oxide conveying air inlet of the powder bin (8) are respectively provided with a filter.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921313792.2U CN210457507U (en) | 2019-08-14 | 2019-08-14 | System for adopt spray roasting method production cobaltosic oxide |
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| CN201921313792.2U CN210457507U (en) | 2019-08-14 | 2019-08-14 | System for adopt spray roasting method production cobaltosic oxide |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110526303A (en) * | 2019-08-14 | 2019-12-03 | 成都益志科技有限责任公司 | A kind of system and its production technology using spray roasting production cobaltosic oxide |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110526303A (en) * | 2019-08-14 | 2019-12-03 | 成都益志科技有限责任公司 | A kind of system and its production technology using spray roasting production cobaltosic oxide |
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