Treatment system for converting basic copper chloride into copper oxide

Abstract

The utility model relates to the technical field of waste liquid treatment, and particularly discloses a treatment system for converting basic copper chloride into copper oxide. Comprising a first cleaning liquid supply tank, an ammonia conversion reaction tank, an ammonia water supply tank, a first intermediate tank, a reclaimed water quantifying tank, a copper ammonia temporary storage tank, a first filter press, a second intermediate tank, a second cleaning liquid supply tank, a liquid caustic soda quantifying tank, an alkali conversion reaction tank, a hot water tank, an alkaline copper mother liquor tank and a second filter press. The first cleaning liquid supply tank is connected with the ammonia conversion reaction tank, and basic copper chloride is input into the ammonia conversion reaction tank; the ammonia conversion reaction tank, the ammonia water supply tank and the reclaimed water quantification tank are all connected with a first intermediate tank, the first intermediate tank is connected with a copper ammonia temporary storage tank, the first intermediate tank is connected with a first filter press, the first filter press is connected with a second intermediate tank, and a second cleaning liquid supply tank is connected with the second intermediate tank; and the second intermediate tank, the liquid caustic soda quantifying tank and the hot water tank are all connected with the alkali transfer reaction tank. The production efficiency can be improved, and the yield of copper oxide is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial waste liquid treatment, in particular to a treatment system for converting basic copper chloride into copper oxide. Background Art

[0002] Basic copper chloride, also known as copper oxychloride or copper oxychloride, has the molecular formula Cu2(OH)3Cl. When industrial copper-containing wastewater is treated, basic copper chloride is produced as an intermediate. This intermediate is then processed to produce copper oxide. In the prior art, the conversion of basic copper chloride to copper oxide is handled by different processing equipment or even different processing plants, without a unified processing system. This results in cumbersome material flow and reduces production efficiency. Utility Model Content

[0003] The utility model provides a processing system for converting basic copper chloride into copper oxide, which can improve production efficiency and increase the output of copper oxide.

[0004] In order to solve the above problems, the present invention adopts the following technical solutions:

[0005] The embodiment of the present invention provides a processing system for converting basic copper chloride into copper oxide, comprising a first cleaning liquid supply tank, an ammonia conversion reaction tank, an ammonia water supply tank, a first intermediate tank, a reclaimed water quantitative tank, a copper ammonia temporary storage tank, a first filter press, a second intermediate tank, a second cleaning liquid supply tank, a liquid alkali quantitative tank, an alkali conversion reaction tank, a hot water tank, an alkali copper mother liquor tank and a second filter press; the first cleaning liquid supply tank is connected to the ammonia conversion reaction tank, and the basic copper chloride to be converted is used to be input into the ammonia conversion reaction tank; the ammonia conversion reaction tank, the ammonia water supply tank and the reclaimed water quantitative tank are all connected to the first intermediate tank, and the first intermediate tank is connected to the copper ammonia temporary storage tank to convert the copper in the first intermediate tank into copper oxide. Ammonia is transported to the copper ammonia temporary storage tank for temporary storage. The first intermediate tank is also connected to the first filter press to transport the reactants in the first intermediate tank to the first filter press. The first filter press is used to filter out the solution in the first intermediate tank and transport the solution in the first intermediate tank to the second intermediate tank. The second cleaning liquid supply tank is connected to the second intermediate tank; the second intermediate tank, the liquid alkali quantitative tank and the hot water tank are all connected to the alkali conversion reaction tank, and the alkali conversion reaction tank is connected to the alkali-copper mother liquor tank to neutralize the waste liquid in the alkali conversion reaction tank with the alkali-copper mother liquor; the alkali conversion reaction tank is also connected to the second filter press, and the second filter press is used to produce copper oxide after filtration.

[0006] In some embodiments, a filter screen is provided in the first intermediate tank, a control valve and a pump body are provided in the pipeline connecting the first intermediate tank and the copper ammonia temporary storage tank, and the connection position of the pipeline connecting the first intermediate tank and the copper ammonia temporary storage tank and the first intermediate tank is located above the filter screen, and the connection position of the pipeline connecting the first intermediate tank and the first filter press and the first intermediate tank is located below the filter screen.

[0007] In some embodiments, the ammonia conversion reaction tank, the first intermediate tank, the second intermediate tank and the alkali conversion reaction tank are all provided with a stirring device.

[0008] In some embodiments, control valves and pump bodies are provided in the pipeline connecting the ammonia conversion reaction tank and the first intermediate tank, the pipeline connecting the first intermediate tank and the first filter press, the pipeline connecting the second intermediate tank and the alkali conversion reaction tank, the pipeline connecting the alkali conversion reaction tank and the alkali copper mother liquor tank, and the pipeline connecting the alkali conversion reaction tank and the second filter press.

[0009] In some embodiments, the output ends of the first cleaning liquid supply tank, the ammonia water supply tank, the reclaimed water quantitative tank, the second cleaning liquid supply tank, the liquid alkali quantitative tank and the hot water tank are all connected to control valves.

[0010] In some embodiments, it also includes a first recovery pipeline, a second recovery pipeline and a first recovery and processing system, one end of the first recovery pipeline is connected to the first filter press to collect the waste liquid generated by the first filter press, the other end of the first recovery pipeline is connected to the first recovery and processing system, the first recovery and processing system is used to filter and recover the waste liquid, and the two ends of the second recovery pipeline are respectively connected to the first recovery and processing system and the first cleaning liquid supply tank to transport the cleaning liquid after filtering and recovery back to the first cleaning liquid supply tank.

[0011] In some embodiments, a third recovery pipeline, a fourth recovery pipeline and a second recovery and processing system are also included. One end of the third recovery pipeline is connected to the second filter press to collect the waste liquid generated by the second filter press, and the other end of the third recovery pipeline is connected to the second recovery and processing system. The second recovery and processing system is used to filter and recover the waste liquid. Both ends of the fourth recovery pipeline are respectively connected to the second recovery and processing system and the second cleaning liquid supply tank to transport the cleaning liquid after filtering and recovery back to the second cleaning liquid supply tank.

[0012] The utility model has at least the following beneficial effects: the first cleaning liquid supply tank of the utility model supplies cleaning liquid to the ammonia conversion reaction tank, the basic copper chloride to be converted is input into the ammonia conversion reaction tank, the ammonia conversion reaction tank, the ammonia water supply tank and the reclaimed water quantitative tank are all connected to the first intermediate tank, so that the solution, ammonia water and reclaimed water in the ammonia conversion reaction tank are input into the first intermediate tank together for reaction, the first intermediate tank is connected to the copper ammonia temporary storage tank, so that the copper ammonia in the first intermediate tank is transported to the copper ammonia temporary storage tank for temporary storage; the first intermediate tank is also connected to the first filter press, so that the reactants in the first intermediate tank are transported to the first filter press, and the first intermediate tank is connected to the first filter press. A filter press is used to filter out the solution in the first intermediate tank and transfer the solution from the first intermediate tank to a second intermediate tank. A second cleaning liquid supply tank supplies cleaning liquid to the second intermediate tank. The second intermediate tank, a liquid alkali metering tank, and a hot water tank are all connected to the alkali conversion reaction tank to input the solution, liquid alkali, and hot water from the second intermediate tank into the alkali conversion reaction tank for reaction. The alkali conversion reaction tank is connected to the alkali copper mother liquor tank to neutralize the waste liquid in the alkali conversion reaction tank with the alkali copper mother liquor. After the reaction in the alkali conversion reaction tank is completed, the reacted solution is transferred to the second filter press, which is used to filter and produce copper oxide. Therefore, the utility model forms a dedicated processing system for converting basic copper chloride to copper oxide. It integrates multiple processing equipment for converting basic copper chloride to copper oxide, reduces material flow time, improves production efficiency, and increases the output of copper oxide. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural schematic diagram of a processing system for converting basic copper chloride to copper oxide according to an embodiment of the present invention.

[0014] Wherein, the accompanying drawings are marked as follows:

[0015] A first cleaning liquid supply tank 11, a second cleaning liquid supply tank 12, an ammonia conversion reaction tank 20, an ammonia water supply tank 30, a first intermediate tank 41, a second intermediate tank 42, a filter screen 43, a reclaimed water metering tank 50, a copper ammonia temporary storage tank 60, a first filter press 71, a second filter press 72, a liquid alkali metering tank 80, an alkali conversion reaction tank 90, a hot water tank 110, an alkali copper mother liquor tank 120, a control valve 131, a pump body 132, a stirring device 140, a first recovery pipeline 151, a second recovery pipeline 152, a third recovery pipeline 153, a fourth recovery pipeline 154, a first recovery and treatment system 161, and a second recovery and treatment system 162. DETAILED DESCRIPTION

[0016] The following description of the present invention, with reference to the accompanying drawings, is provided to facilitate a more comprehensive understanding of the various embodiments of the present invention as defined in the claims and their equivalents. The description includes various specific details to assist understanding, but these details should be construed as merely exemplary. Therefore, those skilled in the art will recognize that various changes and modifications may be made to the various embodiments described herein without departing from the scope and spirit of the present invention.

[0017] In the description of the present invention, descriptions of directions, such as up, down, front, back, left, right, etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as a limitation on the present invention.

[0018] It will be understood that when one element (e.g., a first element) is “connected” to another element (e.g., a second element), the element may be directly connected to the other element or an intervening element (e.g., a third element) may be present between the element and the other element.

[0019] The embodiment of the present invention provides a processing system for converting basic copper chloride into copper oxide, such as Figure 1 As shown, the system includes a first cleaning liquid supply tank 11, an ammonia conversion reaction tank 20, an ammonia water supply tank 30, a first intermediate tank 41, a reclaimed water metering tank 50, a copper ammonia temporary storage tank 60, a first filter press 71, a second intermediate tank 42, a second cleaning liquid supply tank 12, a liquid caustic soda metering tank 80, an alkali conversion reaction tank 90, a hot water tank 110, an alkali copper mother liquor tank 120, and a second filter press 72. The first and second cleaning liquid supply tanks 11 and 121 store cleaning liquid and reclaimed water for supplying cleaning liquid required for the reaction. The ammonia water supply tank 30 stores ammonia water, specifically 25% ammonia water. The reclaimed water metering tank 50 is used to meteredly supply reclaimed water. The copper ammonia temporary storage tank 60 is used to temporarily store the copper ammonia produced by the reaction. The liquid caustic soda metering tank 80 is used to meteredly supply liquid caustic soda, such as NaOH solution. The hot water tank 110 supplies hot water and water vapor, and the alkali copper mother liquor tank 120 stores alkali copper mother liquor.

[0020] The first cleaning liquid supply tank 11 is connected to the ammonia conversion reaction tank 20 to deliver the cleaning liquid to the ammonia conversion reaction tank 20. The basic copper chloride to be converted is then fed into the ammonia conversion reaction tank 20 and mixed with the cleaning liquid. The ammonia conversion reaction tank 20, the ammonia water supply tank 30, and the reclaimed water metering tank 50 are all connected to the first intermediate tank 41. The mixture in the ammonia conversion reaction tank 20, the ammonia water, and the reclaimed water react in the first intermediate tank 41, producing copper hydroxide and cuprammonium. The first intermediate tank 41 is connected to the cuprammonium temporary storage tank 60 to deliver the cuprammonium in the first intermediate tank 41 to the cuprammonium temporary storage tank 60 for temporary storage. The first intermediate tank 41 is also connected to the first filter press 71 to transport the reactants in the first intermediate tank 41 to the first filter press 71. The first filter press 71 is used to filter the material, thereby filtering out the solution in the first intermediate tank and transporting the solution in the first intermediate tank to the second intermediate tank 42. The second cleaning liquid supply tank 12 is connected to the second intermediate tank 42 to add the cleaning liquid to the second intermediate tank 42 and mix it with the solution in the second intermediate tank 42; the second intermediate tank 42, the liquid alkali quantitative tank 80 and the hot water tank 110 are all connected to the alkali conversion reaction tank 90. ​​The solution, liquid alkali and hot water in the second intermediate tank 42 undergo alkali conversion reaction in the alkali conversion reaction tank 90. ​​During the alkali conversion reaction, since there is still ammonium salt that has not been washed away, a complex reaction occurs under alkaline conditions, which will produce ammonia gas. This part of the ammonia gas can be collected through a pipeline to the alkali solution spray tower for treatment and then discharged. The reaction formula is as follows:

[0021] NH4Cl+NaOH→NaCl+NH3+H2O;

[0022] The alkali conversion reaction tank 90 is connected to the alkali copper mother liquor tank 120 to neutralize the waste liquid in the alkali conversion reaction tank 90 with the alkali copper mother liquor. The alkali copper mother liquor is an acidic copper-containing waste liquid, and the waste liquid in the alkali conversion reaction tank 90 is alkaline. After the neutralization of the two, a basic copper chloride precipitate can be obtained, which can be used to prepare copper oxide. The reaction formula is as follows:

[0023] Cu(NH3)4Cl2+CuCl2+HCl+3H2O→Cu2(OH)3Cl↓+4NH4Cl;

[0024] The alkali conversion reaction tank 90 is also connected to the second filter press 72, which is used to produce copper oxide after filtration.

[0025] Therefore, this embodiment forms a dedicated processing system for converting basic copper chloride to copper oxide, integrating multiple processing equipment for converting basic copper chloride to copper oxide, reducing the time of material flow, improving production efficiency, and increasing the output of copper oxide in the same time.

[0026] In some embodiments, a filter screen 43 is installed in the first intermediate tank 41. A control valve 131 and a pump 132 are installed in the pipeline connecting the first intermediate tank 41 to the copper-ammonia temporary storage tank 60. The connection point between the pipeline connecting the first intermediate tank 41 to the copper-ammonia temporary storage tank 60 and the first intermediate tank 41 is located above the filter screen 43, while the connection point between the pipeline connecting the first intermediate tank 41 to the first filter press 71 and the first intermediate tank 41 is located below the filter screen 43. After the ammonia conversion reaction occurs, the copper-ammonia remains as a precipitate on the filter screen 43, while the remaining solution passes through the filter screen 43 and enters the first filter press 71. After the solution flows away, the reclaimed water metering tank 50 adds reclaimed water to the first intermediate tank 41, the control valve 131 opens, and the pump 132 begins to operate, pumping the copper-ammonia into the copper-ammonia temporary storage tank 60.

[0027] In some embodiments, the ammonia conversion reaction tank 20, the first intermediate tank 41, the second intermediate tank 42 and the alkali conversion reaction tank 90 are all provided with a stirring device 140 to accelerate the fluidity of the solution in the tank body so that the solution can react fully and evenly, shorten the reaction time and improve production efficiency.

[0028] In some embodiments, a control valve 131 and a pump 132 are provided in the pipelines connecting the ammonia conversion reaction tank 20 and the first intermediate tank 41, the pipeline connecting the first intermediate tank 41 and the first filter press 71, the pipeline connecting the second intermediate tank 42 and the alkali conversion reaction tank 90, the pipeline connecting the alkali conversion reaction tank 90 and the alkali-copper mother liquor tank 120, and the pipeline connecting the alkali conversion reaction tank 90 and the second filter press 72. The control valve 131 can control the connection or disconnection of the corresponding pipeline to control the flow of the solution. The pump 132 provides power for the flow of the solution, accelerating the flow of the solution.

[0029] In some embodiments, the output ends of the first cleaning liquid supply tank 11, the ammonia water supply tank 30, the reclaimed water metering tank 50, the second cleaning liquid supply tank 12, the liquid alkali metering tank 80 and the hot water tank 110 are all connected to a control valve 131 to control the supply of corresponding materials. The control valve 131 can not only control the conduction and disconnection of the output end, but also adjust the opening to control the flow rate of the material supply.

[0030] In some embodiments, the processing system for converting basic copper chloride to copper oxide in this embodiment further includes a first recovery pipeline 151, a second recovery pipeline 152, and a first recovery and processing system 161. One end of the first recovery pipeline 151 is connected to the first filter press 71 to collect the waste liquid generated by the first filter press 71. The other end of the first recovery pipeline 151 is connected to the first recovery and processing system 161. The first recovery and processing system 161 is used to filter and recycle the waste liquid. The two ends of the second recovery pipeline 152 are respectively connected to the first recovery and processing system 161 and the first cleaning liquid supply tank 11 to transport the filtered and recycled cleaning liquid back to the first cleaning liquid supply tank 11. The first recovery and processing system 161 is a system for processing the waste liquid of the filter press. It may include a filtering device, a neutralizing device, and other necessary devices to recycle the cleaning liquid, improve the utilization rate of the cleaning liquid, and avoid environmental pollution caused by direct disposal.

[0031] In some embodiments, the processing system for converting basic copper chloride to copper oxide in this embodiment further includes a third recovery pipeline 153, a fourth recovery pipeline 154, and a second recovery and processing system 162. One end of the third recovery pipeline 153 is connected to the second filter press 72 to collect the waste liquid generated by the second filter press 72. The other end of the third recovery pipeline 153 is connected to the second recovery and processing system 162. The second recovery and processing system 162 is used to filter and recycle the waste liquid. The two ends of the fourth recovery pipeline 154 are respectively connected to the second recovery and processing system 162 and the second cleaning liquid supply tank 12 to transport the filtered and recovered cleaning liquid back to the second cleaning liquid supply tank 12. The second recovery and processing system 162 is a system for processing the waste liquid of the filter press, which may include a filtering device, a neutralizing device, and other necessary devices to recycle the cleaning liquid, improve the utilization rate of the cleaning liquid, and avoid environmental pollution caused by direct disposal.

[0032] The terms and words used in the above description and claims are not limited to their literal meanings, but are merely used by the applicant to enable a clear and consistent understanding of the present invention. Therefore, it should be clear to those skilled in the art that the above description of various embodiments of the present invention is provided for illustration only and is not intended to limit the present invention as defined in the appended claims and their equivalents.

Claims

1. A treatment system for converting basic copper chloride to copper oxide, characterized in that: It includes a first cleaning liquid supply tank, an ammonia conversion reaction tank, an ammonia water supply tank, a first intermediate tank, a reclaimed water metering tank, a copper ammonia temporary storage tank, a first filter press, a second intermediate tank, a second cleaning liquid supply tank, a liquid alkali metering tank, an alkali conversion reaction tank, a hot water tank, an alkali copper mother liquor tank and a second filter press; the first cleaning liquid supply tank is connected to the ammonia conversion reaction tank, and the basic copper chloride to be converted is used to be input into the ammonia conversion reaction tank; the ammonia conversion reaction tank, the ammonia water supply tank and the reclaimed water metering tank are all connected to the first intermediate tank, and the first intermediate tank is connected to the copper ammonia temporary storage tank to transport the copper ammonia in the first intermediate tank to the copper ammonia temporary storage tank for temporary storage. The first intermediate tank is also connected to the first filter press to transport the reactants in the first intermediate tank to the first filter press. The first filter press is used to filter out the solution in the first intermediate tank and transport the solution in the first intermediate tank to the second intermediate tank. The second cleaning liquid supply tank is connected to the second intermediate tank; the second intermediate tank, the liquid alkali quantitative tank and the hot water tank are all connected to the alkali conversion reaction tank, and the alkali conversion reaction tank is connected to the alkali copper mother liquor tank to neutralize the waste liquid in the alkali conversion reaction tank with the alkali copper mother liquor; the alkali conversion reaction tank is also connected to the second filter press, and the second filter press is used to produce copper oxide after filtration.

2. The process for converting basic copper chloride to copper oxide according to claim 1, wherein: A filter screen is provided in the first intermediate tank, and a control valve and a pump body are provided in the pipeline connecting the first intermediate tank and the copper ammonia temporary storage tank. The connection position of the pipeline connecting the first intermediate tank and the copper ammonia temporary storage tank and the first intermediate tank is located above the filter screen, and the connection position of the pipeline connecting the first intermediate tank and the first filter press and the first intermediate tank is located below the filter screen.

3. The processing system for converting basic copper chloride to copper oxide according to claim 1, wherein: The ammonia conversion reaction tank, the first intermediate tank, the second intermediate tank and the alkali conversion reaction tank are all provided with stirring devices.

4. The processing system for converting basic copper chloride to copper oxide according to claim 1, wherein: Control valves and pump bodies are provided in the pipeline connecting the ammonia conversion reaction tank and the first intermediate tank, the pipeline connecting the first intermediate tank and the first filter press, the pipeline connecting the second intermediate tank and the alkali conversion reaction tank, the pipeline connecting the alkali conversion reaction tank and the alkali copper mother liquor tank, and the pipeline connecting the alkali conversion reaction tank and the second filter press.

5. The processing system for converting basic copper chloride to copper oxide according to claim 1, wherein: The output ends of the first cleaning liquid supply tank, the ammonia water supply tank, the reclaimed water quantitative tank, the second cleaning liquid supply tank, the liquid alkali quantitative tank and the hot water tank are all connected to control valves.

6. The processing system for converting basic copper chloride to copper oxide according to claim 1, wherein: It also includes a first recovery pipeline, a second recovery pipeline and a first recovery and processing system. One end of the first recovery pipeline is connected to the first filter press to collect waste liquid generated by the first filter press. The other end of the first recovery pipeline is connected to the first recovery and processing system. The first recovery and processing system is used to filter and recover the waste liquid. The two ends of the second recovery pipeline are respectively connected to the first recovery and processing system and the first cleaning liquid supply tank to transport the cleaning liquid after filtering and recovery back to the first cleaning liquid supply tank.

7. The processing system for converting basic copper chloride to copper oxide according to claim 1, wherein: It also includes a third recovery pipeline, a fourth recovery pipeline and a second recovery and processing system. One end of the third recovery pipeline is connected to the second filter press to collect the waste liquid generated by the second filter press. The other end of the third recovery pipeline is connected to the second recovery and processing system. The second recovery and processing system is used to filter and recover the waste liquid. Both ends of the fourth recovery pipeline are respectively connected to the second recovery and processing system and the second cleaning liquid supply tank to transport the cleaning liquid after filtering and recovery back to the second cleaning liquid supply tank.

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