Automatic factory production device for calcium hypochlorite

Abstract

The utility model relates to a calcium hypochlorite factory automatic production device which comprises a sodium reaction kettle, a calcium reaction kettle and a comprehensive reaction kettle, and the sodium reaction kettle is provided with a sodium hydroxide pipeline, a mother liquor pipeline and a chlorine pipeline; the calcium reaction kettle is provided with a calcium hydroxide pipeline, a mother liquor pipeline and a chlorine pipeline; the comprehensive reaction kettle is provided with a chlorine pipeline, a process water pipeline and a burdening liquid pipeline; the chlorine pipeline is provided with a flow meter, a regulating valve and a switch valve; the sodium hydroxide pipeline is provided with a flow meter and a switch valve; the calcium hydroxide pipeline is provided with a flow meter and a switch valve; the mother liquor pipeline is provided with a flow meter and a switch valve; a discharge pipe of the sodium reaction kettle and a discharge pipe of the calcium reaction kettle are respectively communicated with an inlet of the batching tank; an outlet of the batching tank is communicated with the batching liquid pipeline; a discharge pipe of the comprehensive reaction kettle is connected with a next working section; the flow meter, the adjusting valve and the switch valve are all electrically connected with the control system, and automatic production can be achieved.

Description

Technical Field

[0001] The utility model relates to a chemical plant, in particular to a calcium hypochlorite factory production device, specifically to an automated calcium hypochlorite factory production device. Background Art

[0002] Existing calcium hypochlorite factories mainly use the sodium process for production, including sodium reactors, calcium reactors, and integrated reactors. During the production process, each reactor mostly relies on a weighing instrument to measure and control the feeding of various raw materials. Due to the characteristics of the weighing instrument, different raw materials cannot be added to the reactor at the same time, thereby increasing the feeding time of the raw materials. Moreover, when feeding different raw materials separately, the operator needs to manually switch the weighing instrument through the interlocking logic twice, and after reaching the designed cumulative value, close the medium pipeline switch valve. After the reactor has reacted for a certain period of time, the operator is required to manually take samples on site for colorimetric analysis at regular intervals to check whether the reaction is complete. As a result, not only is the operation cumbersome, the workload is increased, and production efficiency is affected, but also, the reaction raw materials contain chlorine, and long-term on-site operation will increase the risk of exposure to poisoning.

[0003] Therefore, it is in urgent need of improvement to better meet production needs. Utility Model Content

[0004] The purpose of the utility model is to address the deficiencies of the existing technology and provide an automated production device for a calcium hypochlorite factory, which can realize remote automatic control of the working process of each reactor and real-time monitoring of the reaction process, thereby effectively improving production efficiency, reducing personnel input, lowering labor costs, and avoiding damage to personnel caused by chlorine gas.

[0005] The technical solution of the utility model is:

[0006] A calcium hypochlorite factory automation production device, including a sodium reactor, a calcium reactor and a comprehensive reactor,

[0007] The sodium reactor is provided with a sodium hydroxide pipeline, a mother liquor pipeline and a chlorine pipeline so as to input sodium hydroxide solution, mother liquor and chlorine into the sodium reactor;

[0008] The calcium reaction kettle is provided with a calcium hydroxide pipeline, a mother liquor pipeline and a chlorine pipeline, so as to input calcium hydroxide solution, mother liquor and chlorine into the calcium reaction kettle;

[0009] The integrated reactor is provided with a chlorine pipeline, a process water pipeline and a feed liquid pipeline so as to input chlorine, process water and feed liquid into the integrated reactor;

[0010] The chlorine pipeline is provided with a flow meter, a regulating valve and an on-off valve; the sodium hydroxide pipeline is provided with a flow meter and an on-off valve; the calcium hydroxide pipeline is provided with a flow meter and an on-off valve; the mother liquor pipeline is provided with a flow meter and an on-off valve;

[0011] The discharge pipe of the sodium reactor and the discharge pipe of the calcium reactor are respectively connected to the inlet of the batching tank; the outlet of the batching tank is connected to the batching liquid pipeline; the discharge pipe of the integrated reactor is connected to the next work section; the discharge pipe is provided with an on-off valve;

[0012] The flow meter, regulating valve and switch valve are all electrically connected to the control system.

[0013] Furthermore, the sodium reactor, calcium reactor and integrated reactor are all equipped with a thermometer, a liquid level gauge, a molecular spectrometer and an ORP analyzer; the thermometer, liquid level gauge, molecular spectrometer and ORP analyzer are electrically connected to the control system respectively.

[0014] Furthermore, a stirrer is provided inside the sodium reactor, the calcium reactor and the integrated reactor respectively.

[0015] Furthermore, the sodium reactor is provided with a heat exchanger; the heat exchanger is connected to an external cooling water system through a cooling water pipe.

[0016] Furthermore, a heat exchanger is provided inside the integrated reactor; the heat exchanger is connected to an external chilled water system through a chilled water pipeline.

[0017] Furthermore, a jacket is provided on the outside of the calcium reactor; the jacket is connected to an external cooling water system and a hot water system through a cooling water pipe and a hot water pipe respectively.

[0018] Furthermore, the discharge pipe of the sodium reactor is provided with a centrifuge; the discharge pipe of the calcium reactor is provided with a delivery pump, a centrifuge and a screw conveyor; and the discharge pipe of the integrated reactor is provided with a delivery pump.

[0019] Beneficial effects of the utility model:

[0020] This utility model has a reasonable design, a simple structure, and is easy to operate. It can realize remote automatic control of the reactions in each reactor and can add different raw materials simultaneously, greatly improving the production efficiency of calcium hypochlorite, reducing the number of on-site operators and reducing the risk of personnel exposure. Moreover, it can monitor and adjust the progress of the redox reaction in real time to prevent overreaction, creating favorable conditions for improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the system structure of the present utility model. DETAILED DESCRIPTION

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] like Figure 1 shown.

[0024] A calcium hypochlorite factory automation production device, including a sodium reactor, a calcium reactor and a comprehensive reactor,

[0025] The sodium reactor is equipped with a sodium hydroxide pipeline, a mother liquor pipeline, and a chlorine pipeline to supply sodium hydroxide solution, mother liquor, and chlorine gas to the sodium reactor. A heat exchanger is provided within the sodium reactor. The heat exchanger is connected to an external cooling water system via a cooling water pipeline, allowing the cooling water to exchange heat within the reactor. A regulating valve is provided on the cooling water pipeline to adjust the cooling water flow rate as needed.

[0026] The calcium reactor is provided with a calcium hydroxide pipeline, a mother liquor pipeline, and a chlorine pipeline to allow calcium hydroxide solution, mother liquor, and chlorine to be input into the calcium reactor. A jacket is provided on the outside of the calcium reactor. The jacket is connected to an external cooling water system and a hot water system via a cooling water pipeline and a hot water pipeline, respectively, so that external cooling water or hot water can flow through the jacket as needed to cool or heat the calcium reactor. The cooling water pipeline and the hot water pipeline are respectively provided with an on-off valve.

[0027] The integrated reactor is equipped with a chlorine gas pipeline, a process water pipeline, and a feed liquid pipeline to supply chlorine gas, process water, and feed liquid to the integrated reactor. A heat exchanger is installed within the integrated reactor. This heat exchanger is connected to an external chilled water system via a chilled water pipeline, allowing external chilled water to flow through the heat exchanger and exchange heat with the integrated reactor. The chilled water pipeline is equipped with an on / off valve.

[0028] The chlorine pipeline is provided with a flow meter, a regulating valve and an on-off valve, so that the flow of chlorine can be measured by the flow meter and the flow of chlorine can be adjusted by the regulating valve. The on-off valve can control the opening and closing of the chlorine pipeline.

[0029] The sodium hydroxide pipeline is provided with a flow meter and a switch valve, so that the flow of the sodium hydroxide solution is measured by the flow meter, and the opening and closing of the sodium hydroxide pipeline is controlled by the switch valve.

[0030] The calcium hydroxide pipeline is provided with a flow meter and a switch valve so that the flow of the calcium hydroxide solution is measured by the flow meter and the opening and closing of the calcium hydroxide pipeline is controlled by the switch valve.

[0031] The mother liquid pipeline is provided with a flow meter and a switch valve, so that the flow rate of the mother liquid can be measured by the flow meter, and the opening and closing of the mother liquid pipeline can be controlled by the switch valve.

[0032] The discharge pipe of the sodium reactor is connected to the inlet of the batching tank after passing through the switch valve and the centrifuge in sequence.

[0033] The discharge pipe of the calcium reactor is connected with the inlet of the batching tank after passing through the switch valve, the delivery pump, the centrifuge and the screw conveyor in sequence.

[0034] The outlet of the batching tank is connected to the batching liquid pipeline after passing through a delivery pump, so as to deliver the mixed ingredients to the integrated reactor.

[0035] The discharge pipe of the integrated reactor is connected to the next working section after passing through the switch valve and the delivery pump in sequence.

[0036] Agitators are respectively provided inside the sodium reactor, the calcium reactor and the integrated reactor to improve the reaction efficiency through stirring.

[0037] Furthermore, the sodium reactor, calcium reactor, and integrated reactor are each equipped with a thermometer, a liquid level gauge, a molecular spectrometer, and an ORP analyzer. The thermometer and liquid level gauge can be used to monitor the temperature and liquid level in each reactor in real time. The molecular spectrometer can also be used to monitor the available chlorine value of the solution in the reactor in real time. The ORP analyzer can also be used to detect the ORP value in the reactor. Furthermore, the thermometer, liquid level gauge, molecular spectrometer, and ORP analyzer are each electrically connected to the control system so that the detected information can be promptly transmitted to the control system.

[0038] The working process of this utility model is:

[0039] After the sodium reactor is automatically operational and put into operation, the control system first monitors the addition of sodium hydroxide solution and mother liquor using flowmeters in the sodium hydroxide and mother liquor pipelines. Once the cumulative amount reaches the set value, the on-off valves in the sodium hydroxide and mother liquor pipelines automatically close. The control system then automatically opens the on-off valve in the chlorine pipeline and the reactor agitator, monitoring the chlorine flow rate and the ORP value within the reactor using the chlorine pipeline flowmeter and ORP analyzer, respectively. Cascade control then adjusts the regulating valve in the chlorine pipeline to maintain these two parameters within the normal range. Once the chlorine flowmeter reaches the cumulative value, the on-off valve in the chlorine pipeline automatically closes. Simultaneously, the regulating valve in the cooling water pipeline is adjusted in real time based on the reactor temperature to ensure that the temperature meets the reaction requirements. After the reactor is completely chlorinated, the agitator continues stirring, and the available chlorine value of the solution in the reactor is monitored in real time using a molecular spectrometer. Finally, the reaction is complete when the available chlorine value in the reactor reaches the set value. The control system then automatically opens the on-off valve in the reactor discharge pipe and the centrifuge to discharge the material into the batching tank. When the liquid level in the reactor is lower than the set value, the switch valves of the agitator and the discharge pipe are automatically closed, and the reaction process of the sodium reactor is completed after the centrifuge is automatically closed after a delay.

[0040] After the calcium reactor is put into automatic operation, the control system first monitors the amount of calcium hydroxide solution and mother liquor added using the flowmeters in the calcium hydroxide pipeline and the mother liquor pipeline. When the cumulative amount reaches the set value, the on-off valves in the calcium hydroxide pipeline and the mother liquor pipeline automatically close. The control system then automatically opens the on-off valve of the hot water system to input hot water into the jacket, and closes the on-off valve of the hot water system after the reactor temperature reaches a stable value. At the same time, the reactor agitator is turned on. After 30 minutes of reaction, the control system automatically opens the on-off valve of the chlorine pipeline and the cooling water pipeline. Simultaneously, the chlorine flow rate and the ORP value in the reactor are monitored using the flowmeter in the chlorine pipeline and the ORP analyzer. The chlorine pipeline regulating valve is then adjusted through cascade control to maintain these two parameters within the normal range. The chlorine flowmeter automatically closes the on-off valve of the chlorine pipeline after reaching the cumulative value. After the reactor is completely chlorinated, the agitator continues stirring, and the available chlorine value of the solution in the reactor is monitored in real time using a molecular spectrometer. Finally, the reaction is completed when the available chlorine in the reactor reaches the set value. At this point, the control system automatically opens the on-off valve, delivery pump, centrifuge, and screw conveyor on the reactor discharge pipe to discharge the reacted material into the batching tank. When the liquid level in the reactor falls below the set value, the agitator, on-off valve, and delivery pump on the discharge pipe are automatically closed. After the centrifuge and screw conveyor automatically shut down after a delay, the reaction process in the calcium reactor is completed.

[0041] After the integrated reactor is put into automatic operation, the control system first monitors the amount of process water added via the process water flowmeter and automatically closes the process water pipeline's on-off valve when the cumulative amount reaches the set value. Simultaneously, the flowmeter in the dosing liquid pipeline monitors the amount of dosing liquid added and automatically closes the on-off valve and dosing liquid delivery pump when the cumulative amount reaches the set value. The control system then automatically opens the on-off valve in the chlorine gas pipeline, opens the on-off valve in the chilled water pipeline, and starts the reactor agitator. The control system also monitors the chlorine flow rate and the ORP value in the reactor using the chlorine pipeline flowmeter and an ORP analyzer. Cascade control then adjusts the regulating valve in the chlorine pipeline to maintain these two parameters within the normal range. When the chlorine flowmeter reaches the cumulative value, the on-off valve in the chlorine pipeline automatically closes. After the reactor is completely chlorinated, the agitator continues stirring, and a molecular spectrometer monitors the available chlorine value in the reactor solution in real time. Finally, the reaction is complete when the available chlorine value in the reactor solution reaches the set value. At this point, the control system automatically opens the on-off valve of the reactor discharge pipe to discharge the reacted material, and when the liquid level in the reactor falls below the set value, it automatically closes the on-off valve of the agitator and the discharge pipe. The reaction process of the integrated reactor is completed.

[0042] The reactions in each reactor in this utility model can be fully remotely and automatically controlled, and different raw materials can be added simultaneously, greatly improving the production efficiency of calcium hypochlorite, reducing the number of on-site operators and lowering the risk of human exposure. Furthermore, the redox reaction process can be monitored and regulated in real time to prevent overreaction, creating favorable conditions for improving product quality.

[0043] The parts not involved in the present invention are the same as the existing technology or can be implemented by using the existing technology.

Claims

1. A calcium hypochlorite factory automation production device, including a sodium reactor, a calcium reactor and a comprehensive reactor, characterized in that: The sodium reactor is provided with a sodium hydroxide pipeline, a mother liquor pipeline and a chlorine pipeline so as to input sodium hydroxide solution, mother liquor and chlorine into the sodium reactor; The calcium reaction kettle is provided with a calcium hydroxide pipeline, a mother liquor pipeline and a chlorine pipeline, so as to input calcium hydroxide solution, mother liquor and chlorine into the calcium reaction kettle; The integrated reactor is provided with a chlorine pipeline, a process water pipeline and a feed liquid pipeline so as to input chlorine, process water and feed liquid into the integrated reactor; The chlorine pipeline is provided with a flow meter, a regulating valve and an on-off valve; the sodium hydroxide pipeline is provided with a flow meter and an on-off valve; the calcium hydroxide pipeline is provided with a flow meter and an on-off valve; the mother liquor pipeline is provided with a flow meter and an on-off valve; The discharge pipe of the sodium reactor and the discharge pipe of the calcium reactor are respectively connected to the inlet of the batching tank; the outlet of the batching tank is connected to the batching liquid pipeline; the discharge pipe of the integrated reactor is connected to the next work section; the discharge pipe is provided with an on-off valve; The flow meter, regulating valve and switch valve are all electrically connected to the control system.

2. The calcium hypochlorite factory automation production device according to claim 1, characterized in that: The sodium reactor, calcium reactor and integrated reactor are all equipped with a thermometer, a liquid level gauge, a molecular spectrometer and an ORP analyzer; the thermometer, liquid level gauge, molecular spectrometer and ORP analyzer are electrically connected to the control system respectively.

3. The calcium hypochlorite factory automation production device according to claim 1, characterized in that: Agitators are respectively provided inside the sodium reactor, the calcium reactor and the integrated reactor.

4. The calcium hypochlorite factory automation production device according to claim 1, characterized in that: The sodium reactor is provided with a heat exchanger, which is connected to an external cooling water system through a cooling water pipeline.

5. The calcium hypochlorite factory automation production device according to claim 1, characterized in that: A heat exchanger is provided inside the integrated reactor; the heat exchanger is connected to an external chilled water system through a chilled water pipeline.

6. The calcium hypochlorite factory automation production device according to claim 1, characterized in that: The outside of the calcium reactor is provided with a jacket; the jacket is connected to an external cooling water system and a hot water system through a cooling water pipe and a hot water pipe respectively.

7. The calcium hypochlorite factory automation production device according to claim 1, characterized in that: The discharge pipe of the sodium reactor is provided with a centrifuge; the discharge pipe of the calcium reactor is provided with a delivery pump, a centrifuge and a screw conveyor; the discharge pipe of the integrated reactor is provided with a delivery pump.

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