CN213913508U - Green's tombarthite chlorination production line - Google Patents
Green's tombarthite chlorination production line Download PDFInfo
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- CN213913508U CN213913508U CN202021952608.1U CN202021952608U CN213913508U CN 213913508 U CN213913508 U CN 213913508U CN 202021952608 U CN202021952608 U CN 202021952608U CN 213913508 U CN213913508 U CN 213913508U
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Abstract
The utility model discloses a can fully absorb the ammonia, avoid exhaust emission, the difficult green's that produces waste gas and waste liquid and leak tombarthite chlorination production line simultaneously in each technology step. The green and environment-friendly rare earth chlorination production line comprises a stirring cylinder, a heating reaction device, an ammonia gas absorption device and a solid-liquid separation device; mixing materials in the mixing drum; the fluorination reaction is realized in the heating reaction device, the waste gas is absorbed by the ammonia gas absorption device, and the separation of the waste liquid and the rare earth fluoride is realized by the solid-liquid separation device. By adopting the green and environment-friendly rare earth chlorination production line, waste gas leakage caused by the transfer of intermediate materials can be avoided, so that the full centralized treatment of the waste gas can be ensured; the purpose of environmental protection is achieved.
Description
Technical Field
The utility model belongs to the technical field of tombarthite production and specifically relates to a tombarthite chlorination production line of green.
Background
It is known that: rare earth is a general name of seventeen metal elements including lanthanide elements, scandium and yttrium in a chemical periodic table. There are 250 kinds of rare-earth ores in nature.
Rare earth metal or fluoride and silicide are added into the steel, which can play the roles of refining, desulfurizing, neutralizing low-melting-point harmful impurities and can improve the processing performance of the steel; the rare earth silicon-iron alloy and the rare earth silicon-magnesium alloy are used as nodulizers to produce the rare earth nodular cast iron, and the nodular cast iron is particularly suitable for producing complex nodular iron pieces with special requirements and is widely used in the machinery manufacturing industries of automobiles, tractors, diesel engines and the like; the rare earth metal is added into the nonferrous alloy of magnesium, aluminum, copper, zinc, nickel and the like, so that the physical and chemical properties of the alloy can be improved, and the room temperature and high temperature mechanical properties of the alloy can be improved.
Preparing rare earth fluoride in the production process of rare earth; the existing preparation methods of rare earth fluoride can be divided into a wet process and a dry process. In the process of realizing rare earth chlorination by using a wet process, a large amount of waste water and waste gas are easily generated, so that the environment is polluted and the influence on the environment is large.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a can fully absorb the ammonia, avoid exhaust emission, the difficult green's that produces waste gas and waste liquid and leak tombarthite chlorination production line simultaneously in each technology step is provided.
The utility model provides a technical scheme that its technical problem adopted is: a green and environment-friendly rare earth chlorination production line comprises a stirring cylinder, a heating reaction device, an ammonia gas absorption device and a solid-liquid separation device;
a rare earth carbonate feeding device and a fluorine-ammonia composite fluorinating agent feeding pipe are arranged above the stirring drum; a base is arranged below the stirring cylinder; the fluorine-ammonia composite fluorinating agent feeding pipe penetrates through the top of the stirring drum and is provided with a two-position three-way valve; a stirring device is arranged in the stirring cylinder; the stirring device is provided with a driving device;
the lower end of the mixing drum is provided with a discharge pipe and a waste liquid discharge pipe; a first electromagnetic valve is arranged on the discharge pipe;
the heating reaction device comprises a reaction barrel; the bottom of the reaction cylinder is provided with a heating device; a gas collecting device is arranged at the top of the reaction cylinder; a blowing device is arranged on one side of the reaction cylinder; the air outlet end of the blowing device is positioned at the bottom of the inner cavity of the reaction cylinder;
a liquid outlet pipe is arranged at the lower end of the reaction cylinder; a second electromagnetic valve is arranged on the liquid outlet pipe; the liquid outlet pipe is communicated with the solid-liquid separation device; the ammonia gas absorption device comprises a spray cylinder; the upper end of the spray cylinder is provided with a water inlet pipe; a spray head is arranged at the upper part of the inner cavity of the spray cylinder; a gas distribution layer is arranged in the middle of the inner cavity of the spray cylinder; the lower end of the spray cylinder is provided with an air inlet pipe and a liquid discharge pipe; the gas collecting device is communicated with the gas inlet pipe through a guide pipe.
Further, the rare earth carbonate feeding device adopts a screw conveyor.
Furthermore, the gas collecting device comprises a gas collecting hood, and a fan is arranged on the gas collecting hood; and the air outlet of the fan is communicated with the air inlet pipe through a pipeline.
Preferably, the heating device is a resistance heating device.
The utility model has the advantages that: the utility model relates to an environment-friendly rare earth chlorination production line, which is provided with a mixing drum, a heating reaction device, an ammonia gas absorption device and a solid-liquid separation device; mixing materials in the mixing drum; the fluorination reaction is realized in the heating reaction device, the waste gas is absorbed by the ammonia gas absorption device, and the separation of the waste liquid and the rare earth fluoride is realized by the solid-liquid separation device; therefore, each process step is realized in different equipment, and mutual interference and influence among different process steps are avoided;
secondly, continuous closed pipeline connection is formed among the devices, so that waste gas leakage caused by transfer of intermediate materials can be avoided, and therefore, the full centralized treatment of the waste gas can be ensured; the purpose of environmental protection is achieved.
Drawings
Fig. 1 is a schematic structural diagram of a green's tombarthite chlorination production line in the embodiment of the utility model.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
As shown in fig. 1, the green and environment-friendly rare earth chlorination production line of the present invention comprises a mixing drum 1, a heating reaction device, an ammonia gas absorption device 3 and a solid-liquid separation device 4;
a rare earth carbonate feeding device 11 and a fluorine-ammonia composite fluorinating agent feeding pipe 12 are arranged above the stirring cylinder 1; a base 19 is arranged below the mixing drum 1; the fluorine-ammonia composite fluorinating agent feeding pipe 12 penetrates through the top of the stirring cylinder 1 and is provided with a two-position three-way valve 13; a stirring device 14 is arranged in the stirring cylinder 1; the stirring device 14 has a drive device 15;
the lower end of the mixing drum 1 is provided with a discharge pipe 17 and a waste liquid discharge pipe 16; a first electromagnetic valve 18 is arranged on the discharge pipe 17;
the heating reaction device comprises a reaction cylinder 2; the bottom of the reaction cylinder 2 is provided with a heating device 22; the top of the reaction cylinder 2 is provided with a gas collecting device 21; a blowing device 23 is arranged on one side of the reaction cylinder 2; the air outlet end of the blowing device 23 is positioned at the bottom of the inner cavity of the reaction cylinder 2;
the lower end of the reaction cylinder 2 is provided with a liquid outlet pipe 24; a second electromagnetic valve 25 is arranged on the liquid outlet pipe 24; the liquid outlet pipe 24 is communicated with the solid-liquid separation device 4; the ammonia gas absorption device 3 comprises a spray cylinder; the upper end of the spray cylinder is provided with a water inlet pipe 31; the upper part of the inner cavity of the spray cylinder is provided with a spray head 33; a gas distribution layer 34 is arranged in the middle of the inner cavity of the spray cylinder; the lower end of the spray cylinder is provided with an air inlet pipe 32 and a liquid outlet pipe 35; the gas collecting device 21 is communicated with the gas inlet pipe 32 through a conduit.
In the application process, firstly, the rare earth carbonate is fed into the stirring cylinder 1 through the rare earth carbonate feeding device 11, and simultaneously, the corresponding metered fluorine-ammonia composite fluorinating agent is added through the fluorine-ammonia composite fluorinating agent feeding pipe 12;
after the corresponding materials are added, starting the stirring device 14, so that the materials are uniformly mixed by the stirring device; then, the first electromagnetic valve 18 is opened to enable the mixed solution to flow into the reaction cylinder 2, and then the reaction cylinder 2 is heated through the heating device 22; so that the reaction cylinder 2 has corresponding temperature;
then starting the blowing device 23 to blow air from the bottom of the reaction cylinder 2; the ammonia gas formed by the reaction is absorbed by the gas collecting device 21, then is guided into the spray cylinder through the guide pipe, and purified water is introduced through the water inlet pipe 31; the waste gas is distributed through the gas distribution layer 34, and meanwhile, the purified water is sprayed through the spray head 33, so that the ammonia gas in the waste gas can be absorbed by the purified water; obtaining ammonia water; the resulting aqueous ammonia solution is discharged through a drain pipe 35.
The liquid and the precipitate obtained after the reaction in the reaction cylinder 2 are sent to a solid-liquid separation device 4 for solid-liquid separation, and the obtained solid is dried, so that the rare earth chloride is obtained.
When needing to wash churn 1, through the intercommunication condition that changes two-position three-way valve 13 for the washing liquid communicates with churn 1, then realizes wasing through letting in the washing liquid, discharges through waste liquid calandria 16 at last.
In summary, the green and environment-friendly rare earth chlorination production line of the utility model is provided with the mixing drum, the heating reaction device, the ammonia gas absorption device and the solid-liquid separation device; mixing materials in the mixing drum; the fluorination reaction is realized in the heating reaction device, the waste gas is absorbed by the ammonia gas absorption device, and the separation of the waste liquid and the rare earth fluoride is realized by the solid-liquid separation device; therefore, each process step is realized in different equipment, and mutual interference and influence among different process steps are avoided;
secondly, continuous closed pipeline connection is formed among the devices, so that waste gas leakage caused by transfer of intermediate materials can be avoided, and therefore, the full centralized treatment of the waste gas can be ensured; the purpose of environmental protection is achieved.
In order to facilitate the addition of the materials and the control, it is preferable that the rare earth carbonate feeding device 11 employs a screw conveyor.
In order to facilitate the collection of ammonia gas, further, the gas collecting device 21 includes a gas collecting hood, and a fan is disposed on the gas collecting hood; the air outlet of the blower is communicated with an air inlet pipe 32 through a pipeline.
For the convenience of control, it is preferable that the heating device 22 is a resistance heating device.
Claims (4)
1. The utility model provides a rare earth chlorination production line of green which characterized in that: comprises a mixing drum (1), a heating reaction device, an ammonia gas absorption device (3) and a solid-liquid separation device (4);
a rare earth carbonate feeding device (11) and a fluorine-ammonia composite fluorinating agent feeding pipe (12) are arranged above the mixing drum (1); a base (19) is arranged below the mixing drum (1); the fluorine-ammonia composite fluorinating agent feeding pipe (12) penetrates through the top of the stirring drum (1) and is provided with a two-position three-way valve (13); a stirring device (14) is arranged in the stirring cylinder (1); the stirring device (14) has a drive device (15);
the lower end of the mixing drum (1) is provided with a discharge pipe (17) and a waste liquid discharge pipe (16); a first electromagnetic valve (18) is arranged on the discharge pipe (17);
the heating reaction device comprises a reaction barrel (2); the bottom of the reaction cylinder (2) is provided with a heating device (22); a gas collecting device (21) is arranged at the top of the reaction cylinder (2); a blowing device (23) is arranged on one side of the reaction cylinder (2); the air outlet end of the blowing device (23) is positioned at the bottom of the inner cavity of the reaction cylinder (2);
a liquid outlet pipe (24) is arranged at the lower end of the reaction cylinder (2); a second electromagnetic valve (25) is arranged on the liquid outlet pipe (24); the liquid outlet pipe (24) is communicated with the solid-liquid separation device (4); the ammonia gas absorption device (3) comprises a spraying cylinder; the upper end of the spray cylinder is provided with a water inlet pipe (31); a spray header (33) is arranged at the upper part of the inner cavity of the spray cylinder; a gas distribution layer (34) is arranged in the middle of the inner cavity of the spray cylinder; the lower end of the spray cylinder is provided with an air inlet pipe (32) and a liquid outlet pipe (35); the gas collecting device (21) is communicated with the gas inlet pipe (32) through a conduit.
2. The green and environment-friendly rare earth chlorination production line according to claim 1, characterized in that: the rare earth carbonate feeding device (11) adopts a screw conveyor.
3. The green and environment-friendly rare earth chlorination production line according to claim 2, characterized in that: the gas collecting device (21) comprises a gas collecting hood, and a fan is arranged on the gas collecting hood; the air outlet of the fan is communicated with an air inlet pipe (32) through a pipeline.
4. The green and environment-friendly rare earth chlorination production line according to claim 3, characterized in that: the heating device (22) adopts a resistance heating device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021952608.1U CN213913508U (en) | 2020-09-09 | 2020-09-09 | Green's tombarthite chlorination production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021952608.1U CN213913508U (en) | 2020-09-09 | 2020-09-09 | Green's tombarthite chlorination production line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213913508U true CN213913508U (en) | 2021-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021952608.1U Active CN213913508U (en) | 2020-09-09 | 2020-09-09 | Green's tombarthite chlorination production line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213913508U (en) |
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2020
- 2020-09-09 CN CN202021952608.1U patent/CN213913508U/en active Active
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