CN210764371U - Environment-friendly energy-saving barium titanate production system - Google Patents
Environment-friendly energy-saving barium titanate production system Download PDFInfo
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- CN210764371U CN210764371U CN201921683051.3U CN201921683051U CN210764371U CN 210764371 U CN210764371 U CN 210764371U CN 201921683051 U CN201921683051 U CN 201921683051U CN 210764371 U CN210764371 U CN 210764371U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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Abstract
The utility model discloses an environmental protection and energy saving type barium titanate production system, its characterized in that: the device comprises a first reaction kettle for preparing barium chloride solution and a second reaction kettle for preparing barium titanate solution, wherein a top exhaust port of the first reaction kettle is connected with a gas washing tower, a bottom outlet is connected with a centrifugal slag remover, and the centrifugal slag remover is connected to the second reaction kettle; the exit linkage of second reation kettle bottom has first settling kettle, first settling kettle is connected with first separator, first separator includes material export and hydrochloric acid discharge port, wherein the hydrochloric acid discharge port is connected to the hydrochloric acid pond, the hydrochloric acid pond is connected to first reation kettle's charge door, to waste water cyclic utilization, reaches the waste water zero release. The beneficial effects of the utility model include: the whole system has no wastewater discharge, meets the requirement of environmental protection, recycles wastewater and waste heat, saves raw materials and energy, has compact structure, accelerates the production beat and improves the production efficiency.
Description
Technical Field
The utility model relates to a barium titanate preparation field, concretely relates to environmental protection and energy saving type barium titanate production system.
Background
Barium titanate is a strong dielectric compound material, has a high dielectric constant and low dielectric loss, and is one of the most widely used materials in electronic ceramics.
In the barium titanate preparation process in the prior art, a large amount of waste water and waste heat are generated, so that the environment pollution and energy loss are easily caused, the production of barium titanate cannot meet the environmental protection requirement, and the energy consumption is high.
Disclosure of Invention
To the weak point among the above-mentioned prior art, the utility model provides an environmental protection and energy saving type barium titanate production system and technology, its waste water recycle, no waste water discharge satisfies the environmental protection requirement, and the recycle used heat reduces the energy consumption.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an environmental protection and energy saving type barium titanate production system which characterized in that: the device comprises a first reaction kettle for preparing barium chloride solution and a second reaction kettle for preparing barium titanate solution, wherein a top exhaust port of the first reaction kettle is connected with a gas washing tower, a bottom outlet is connected with a centrifugal slag remover, and the centrifugal slag remover is connected to the second reaction kettle; the outlet at the bottom of the second reaction kettle is connected with a first settling kettle, the first settling kettle is connected with a first separator, the first separator comprises a material outlet and a hydrochloric acid discharge port, wherein the hydrochloric acid discharge port is connected to a hydrochloric acid pool, the hydrochloric acid pool is connected to a feed inlet of the first reaction kettle, the material outlet of the first separator is connected to a primary bin, the primary bin is connected to the fine cleaning kettle through a lifting device, a water filling port is arranged at the upper part of the fine cleaning kettle, a second settling kettle is connected with an outlet at the bottom of the fine cleaning kettle, the second settling kettle is connected with a second separator, the second separator comprises a discharge hole and a hydrochloric acid outlet, and a hydrochloric acid outlet of the hydrochloric acid tank is connected to the hydrochloric acid tank, a material outlet of the hydrochloric acid tank is connected to a fine washing bin, and the fine washing material of the fine washing bin sequentially passes through the electric heating calciner, the hot bin and the cooling tower and enters a barium titanate finished product screening and packaging room from an outlet at the lower part of the cooling tower.
Further, an electric heating crystallization kettle is arranged between the centrifugal slag remover and the second reaction kettle; the centrifugal slag remover is provided with a slag outlet and a liquid outlet, wherein the slag outlet is connected with a barium slag brick machine; a liquid outlet of the centrifugal slag remover is connected with a raw material liquid tank, raw material liquid in the raw material liquid tank is conveyed into the electric heating crystallization kettle through a raw material liquid pump, a heat exchanger is further arranged between the raw material liquid pump and the electric heating crystallization kettle, a steam outlet is formed in the top of the electric heating crystallization kettle, the steam outlet is connected to a gas channel in the upper portion of the heat exchanger and used for heating the raw material liquid, a condensate outlet is formed in the lower portion of the heat exchanger, and the condensate outlet is connected to a feeding port of the first reaction kettle; the bottom outlet of the electric heating crystallization kettle is sequentially connected with a thickening machine and a finished product machine, wherein the finished product machine comprises a liquid outlet and a dry material outlet, the liquid outlet is connected to a mother liquid tank, and liquid in the mother liquid tank is conveyed to a feed inlet of the first reaction kettle through a mother liquid pump; and a dry material outlet of the finished product machine is connected with a feed inlet of the second reaction kettle through a conveyor.
Furthermore, the electric heating calciner is provided with a tail gas outlet which is connected with a tail gas treatment device.
Further, the cooling tower is provided with a cold air inlet at the bottom and a gas outlet at the upper part.
An environment-friendly energy-saving barium titanate production process is characterized in that: comprises the following steps of (a) carrying out,
s1, adding barium carbonate mineral powder, process water and hydrochloric acid in a first reaction kettle according to a preset proportion, and fully reacting;
s2, removing barium residues generated in the step S1 through a centrifugal slag remover, and sending the separated raw material liquid into an electric heating crystallization kettle for evaporation and crystallization, wherein steam generated in the electric heating crystallization kettle is used for preheating the raw material liquid;
s3, separating the raw material liquid in the electric heating crystallization kettle into mother liquid and high-precision barium chloride sequentially through a thickening machine and a finished product machine, wherein the mother liquid is returned to the first reaction kettle in the step S1 for reuse, and the obtained high-precision barium chloride is sent to a second reaction kettle;
s4, adding titanium tetrachloride, oxalic acid and water in a second reaction kettle according to the addition of barium chloride according to a preset proportion, and fully reacting;
s5, separating hydrochloric acid and a primary material from the reaction liquid in the second reaction kettle sequentially through the first settling kettle and the first separator, sending the separated hydrochloric acid into a hydrochloric acid pool, adjusting the hydrochloric acid concentration of the hydrochloric acid pool, and sending the hydrochloric acid into the first reaction kettle in the step S1 to be used as a raw material; feeding the separated primary material into a primary material bin;
s6, feeding the primary material in the primary material bin into a fine tower, adding purified water into the fine tower for fine treatment, sequentially passing the mixed solution after the fine treatment through a second settler and a second separator, and feeding the separated hydrochloric acid into the hydrochloric acid pool in the step S5 for secondary utilization; sending the separated fine washing material into a fine washing bin;
s7, feeding the fine washing material in the fine washing bin into an electric heating calcining furnace for calcining, and feeding the calcined hot material into a hot bin;
and S8, feeding the hot material in the hot material bin into a cooling tower to be cooled to obtain a barium titanate product, and packaging the cooled product into a finished product in a screening and packaging room.
Further, the process water in the step S1 is scrubber water discharged from the scrubber tower.
The beneficial effects of the utility model include: the whole system has no wastewater discharge, meets the requirement of environmental protection, recycles wastewater and waste heat, saves raw materials and energy, has compact structure, accelerates the production beat and improves the production efficiency.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of embodiment 2 of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments and accompanying drawings.
Example 1
An environment-friendly and energy-saving barium titanate production system as shown in figure 1 is characterized in that: the method comprises a first reaction kettle 1 for preparing barium chloride solution and a second reaction kettle 2 for preparing barium titanate solution, wherein an exhaust port at the top of the first reaction kettle 1 is connected with a gas scrubbing tower 24 for absorbing HCl gas generated in the first reaction kettle 1, and the top of the gas scrubbing tower 24 is connected with tap water; the bottom outlet of the first reaction kettle 1 is connected with a centrifugal slag remover 3 for removing solid barium slag generated in the first reaction kettle 1. And a liquid outlet of the centrifugal slag remover 3 is connected to the second reaction kettle 2 and used for directly feeding the barium chloride stock solution into the second reaction kettle 2. And a feed inlet at the upper part of the second reaction kettle 2 is also used for adding raw materials such as oxalic acid, titanium tetrachloride and water. The exit linkage of 2 bottoms in second reation kettle has first settling cask 4, first settling cask 4 is connected with first separator 5, and its effect lies in the hydrochloric acid product after the preliminary separation second reation kettle 2 reaction. The first separator 5 comprises a feed outlet and a hydrochloric acid discharge, wherein the hydrochloric acid discharge is connected to a hydrochloric acid tank 6. The hydrochloric acid pool 6 is connected to the feed inlet of the first reaction kettle 1 for returning the waste hydrochloric acid for secondary utilization, so that the raw materials are fully saved.
The material outlet of first separator 5 is connected to a feed bin 7, a feed bin 7 is connected to a fine cleaning kettle 8 through a lifting device, fine cleaning kettle 8 upper portion is provided with the filler, and this filler is used for filling the pure water to come the fine cleaning a material. And an outlet at the bottom of the fine cleaning kettle 8 is connected with a second settling kettle 9, and the second settling kettle 9 is connected with a second separator 10 for separating residual hydrochloric acid attached to the primary material. The second separator comprises a discharge hole and a hydrochloric acid outlet, and the hydrochloric acid outlet is also connected to the hydrochloric acid pool 6 and is used for returning to the first reaction kettle 1 for recycling.
A material outlet of the second separator 10 is connected to a fine washing bin 11, the fine washing material of the fine washing bin 11 sequentially passes through an electric heating calciner 12, a hot bin 13 and a cooling tower 14, wherein a tail gas treatment device is arranged at a gas outlet of the electric heating calciner 12 and is used for absorbing gases such as water vapor, CO2 and the like generated in the calciner; the cooling tower 14 is cooled by air, cold air is introduced into the lower part of the cooling tower 14 and is discharged from the top of the cooling tower to be discharged, and pollution is avoided. The barium titanate product which is the final product of the system enters a barium titanate finished product screening and packaging room from the lower outlet of the cooling tower 14. The system is continuous operation, the production rhythm is fast, no waste water is generated, the environmental protection requirement is met, the raw materials are saved, and the purity of the obtained barium titanate product can reach 90%.
Example 2
An environment-friendly and energy-saving barium titanate production system as shown in fig. 2 has the same other characteristics as those of example 1, and is characterized in that: an electric heating crystallization kettle 15 is arranged between the centrifugal slag remover 3 and the second reaction kettle 2 and used for purifying the purity of the barium chloride. The centrifugal slag remover 3 is provided with a slag outlet and a liquid outlet, wherein the slag outlet is connected with a barium slag brick machine 16, and the centrifugal slag remover can be used for directly making the produced barium slag into barium slag bricks, thereby solving the problem of solid waste discharge. The liquid outlet of the centrifugal slag remover 3 is connected with a raw material liquid tank 17, the raw material liquid in the raw material liquid tank 17 is conveyed to the electric heating crystallization kettle 15 through a raw material liquid pump 18, and a heat exchanger 19 is further arranged between the raw material liquid pump 18 and the electric heating crystallization kettle 15 and used for preheating the raw material liquid. The top of the electric heating crystallization kettle 15 is provided with a steam outlet, the steam outlet is connected to a gas channel at the upper part of the heat exchanger 19 and used for heating a raw material liquid, the lower part of the heat exchanger 19 is provided with a condensate outlet, and the condensate outlet is connected to a feed inlet of the first reaction kettle 1; adopt the used heat of retrieving electrical heating crystallization kettle 15 to be used for preheating the feed liquid, make the crystallization reduce the energy resource consumption in the heating crystallization process more fast on the one hand, on the other hand is with the vapor recycle after the condensation, has reduced the waste of water resource.
The outlet at the bottom of the electric heating crystallization kettle 15 is sequentially connected with a thickening machine 20 and a finished product machine 21, wherein the finished product machine 21 comprises a liquid outlet and a dry material outlet, the liquid outlet is connected to a mother liquid tank 22 and used for collecting raw material liquid which is not completely evaporated in the crystallization kettle, the liquid in the mother liquid tank 22 is conveyed to a feed inlet of the first reaction kettle through a mother liquid pump 23, the mother liquid which is not evaporated enters the circulation again, on one hand, the raw material waste is reduced, on the other hand, the addition of process water in the first reaction kettle 1 is reduced, and the water resource is saved. And a dry material outlet of the finished product machine 21 is connected with a feed inlet of the second reaction kettle 2 through a conveyor, and then enters a barium titanate production system. In the barium titanate production system in the embodiment, production raw materials are fully utilized, resource waste is reduced, waste heat energy is recovered, energy consumption is reduced, no waste water is discharged to meet the environmental protection requirement, and the purity of the finally obtained barium titanate product is over 95%.
The utility model comprises the following steps:
s1, adding barium carbonate, process water and hydrochloric acid into the first reaction kettle according to a preset proportion, and fully reacting;
s2, removing barium residues generated in the step S1 through a centrifugal slag remover, and sending the separated raw material liquid into an electric heating crystallization kettle for evaporation and crystallization, wherein steam generated in the electric heating crystallization kettle is used for preheating the raw material liquid;
s3, separating the raw material liquid in the electric heating crystallization kettle into mother liquid and high-precision barium chloride sequentially through a thickening machine and a finished product machine, wherein the mother liquid is returned to the first reaction kettle in the step S1 for reuse, and the obtained high-precision barium chloride is sent to a second reaction kettle;
s4, adding titanium tetrachloride, oxalic acid and water in a second reaction kettle according to the addition of barium chloride according to a preset proportion, and fully reacting;
s5, separating hydrochloric acid and a primary material from the reaction liquid in the second reaction kettle sequentially through the first settling kettle and the first separator, sending the separated hydrochloric acid into a hydrochloric acid pool, adjusting the hydrochloric acid concentration of the hydrochloric acid pool, and sending the hydrochloric acid into the first reaction kettle in the step S1 to be used as a raw material; feeding the separated primary material into a primary material bin;
s6, feeding the primary material in the primary material bin into a fine tower, adding purified water into the fine tower for fine treatment, sequentially passing the mixed solution after the fine treatment through a second settler and a second separator, and feeding the separated hydrochloric acid into the hydrochloric acid pool in the step S5 for secondary utilization; sending the separated fine washing material into a fine washing bin;
s7, feeding the fine washing material in the fine washing bin into an electric heating calcining furnace for calcining, and feeding the calcined hot material into a hot bin;
and S8, feeding the hot material in the hot material bin into a cooling tower to be cooled to obtain a barium titanate product, and packaging the cooled product into a finished product in a screening and packaging room.
The process water in the step S1 is the scrubbing water of the scrubbing tower.
The technical solutions provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by using specific examples, and the descriptions of the above embodiments are only applicable to help understand the principles of the embodiments of the present invention; meanwhile, for a person skilled in the art, according to the embodiments of the present invention, there may be variations in the specific implementation manners and application ranges, and in summary, the content of the description should not be construed as a limitation to the present invention.
Claims (4)
1. The utility model provides an environmental protection and energy saving type barium titanate production system which characterized in that: the device comprises a first reaction kettle (1) for preparing barium chloride solution and a second reaction kettle (2) for preparing barium titanate solution, wherein a top exhaust port of the first reaction kettle (1) is connected with a scrubbing tower (24), and a bottom outlet is connected with a centrifugal slag remover (3); the centrifugal slag remover (3) is connected to the second reaction kettle (2); the outlet of the bottom of the second reaction kettle (2) is connected with a first settling kettle (4), the first settling kettle (4) is connected with a first separator (5), the first separator (5) comprises a material outlet and a hydrochloric acid outlet, the hydrochloric acid outlet is connected to a hydrochloric acid pool (6), the hydrochloric acid pool (6) is connected to a feeding port of the first reaction kettle (1), the material outlet of the first separator (5) is connected to a primary material bin (7), the primary material bin (7) is connected to a fine washing kettle (8) through a lifting device, a water filling port is arranged on the upper portion of the fine washing kettle (8), the outlet of the bottom of the fine washing kettle (8) is connected with a second settling kettle (9), the second settling kettle (9) is connected with a second separator (10), the second separator comprises a discharge port and a hydrochloric acid outlet, the hydrochloric acid outlet is connected to the hydrochloric acid pool (6), the material outlet of the fine washing bin is connected to a fine washing bin (11), and the fine washing material of the fine washing bin (11) sequentially passes through an electric heating calciner (12), a hot bin (13) and a cooling tower (14) and enters a barium titanate finished product screening and packaging room from the outlet at the lower part of the cooling tower (14).
2. The environment-friendly energy-saving barium titanate production system according to claim 1, characterized in that: an electric heating crystallization kettle (15) is arranged between the centrifugal slag remover (3) and the second reaction kettle (2); the centrifugal slag remover (3) is provided with a slag outlet and a liquid outlet, wherein the slag outlet is connected with a barium slag brick machine (16); a liquid outlet of the centrifugal slag remover (3) is connected with a raw material liquid tank (17), a raw material liquid in the raw material liquid tank (17) is conveyed into the electric heating crystallization kettle (15) through a raw material liquid pump (18), a heat exchanger (19) is further arranged between the raw material liquid pump (18) and the electric heating crystallization kettle (15), a steam outlet is formed in the top of the electric heating crystallization kettle (15), the steam outlet is connected to a gas channel in the upper part of the heat exchanger (19) and used for heating the raw material liquid, a condensate outlet is formed in the lower part of the heat exchanger (19), and the condensate outlet is connected to a feed inlet of the first reaction kettle (1); an outlet at the bottom of the electric heating crystallization kettle (15) is sequentially connected with a thickening machine (20) and a finished product machine (21), wherein the finished product machine (21) comprises a liquid outlet and a dry material outlet, the liquid outlet is connected to a mother liquid tank (22), and liquid in the mother liquid tank (22) is conveyed to a feed inlet of the first reaction kettle through a mother liquid pump (23); and a dry material outlet of the finished product machine (21) is connected with a feed inlet of the second reaction kettle (2) through a conveyor.
3. The environment-friendly energy-saving barium titanate production system according to claim 1, characterized in that: the electric heating calciner (12) is provided with a tail gas outlet which is connected with a tail gas treatment device.
4. The environment-friendly energy-saving barium titanate production system according to claim 1, characterized in that: the bottom of the cooling tower (14) is provided with a cold air inlet, and the upper part of the cooling tower is provided with a gas outlet.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110526286A (en) * | 2019-10-10 | 2019-12-03 | 重庆中坛洋铭化工科技有限公司 | A kind of environment-friendly and energy-efficient barium titanate production system and technique |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110526286A (en) * | 2019-10-10 | 2019-12-03 | 重庆中坛洋铭化工科技有限公司 | A kind of environment-friendly and energy-efficient barium titanate production system and technique |
| CN110526286B (en) * | 2019-10-10 | 2024-04-26 | 重庆中坛洋铭化工科技有限公司 | Environment-friendly energy-saving barium titanate production system and process |
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