Sodium hypochlorite preparation system for cement industry

Abstract

The utility model provides a sodium hypochlorite preparation system for cement industry, which belongs to the technical field of water disinfection for cement plants, and comprises a raw material part, the raw material part comprises a brine tank and a softened water tank, and the output ends of the brine tank and the softened water tank are connected with a mixer; the electrolysis device is arranged at the output end of the raw material part and used for electrolyzing saline water to prepare a sodium hypochlorite solution, a sodium hypochlorite outlet is formed in the electrolysis device, and the sodium hypochlorite outlet is connected with a reaction tank and a clean water tank; the control part comprises a power supply and a controller; the sodium hypochlorite preparation system disclosed by the utility model is high in automation degree, dissolution of salt, blending and conveying of saline water, and production and addition of sodium hypochlorite are all automatically controlled, normal operation can be realized with less manual intervention, production medicament addition can be realized only by periodically adding refined salt, and the sodium hypochlorite preparation system is provided with multi-path equipment protection and water shortage protection, so that the production cost is reduced. And normal operation of equipment is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to cement plant water disinfection technical field, concretely relates to a sodium hypochlorite preparation system for cement industry. BACKGROUND

[0002] In the cement production industry, drinking water is mostly disinfected by using chlorine dioxide generator, but the disinfectant adding process of chlorine dioxide generator is easily affected by water pressure, which easily leads to water quality fluctuation, and the raw materials used by the equipment are hydrochloric acid and sodium chlorate, both of which are corrosive, and there are safety risks in use and storage; in addition, the traditional disinfectant preparation system is easily affected by manual intervention, that is, the deployment, transportation and addition of raw materials are greatly affected by human operation, thus defects exist in preparation efficiency and production safety. Therefore, a drinking water disinfection device for cement industry is needed, which is efficient, does not use dangerous chemicals, has stable addition process, is low in cost and high in safety factor. SUMMARY

[0003] The utility model provides a sodium hypochlorite preparation system for cement industry, does not use dangerous chemicals, only uses edible salt as raw material, and the raw material adding process is stable, has the advantages of low cost and high safety factor.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme:

[0005] A sodium hypochlorite preparation system for cement industry, comprising:

[0006] A raw material part, comprising a brine tank and a soft water tank, and the output ends of the brine tank and the soft water tank are connected with a mixer;

[0007] An electrolytic device, arranged at the output end of the raw material part, for electrolyzing brine to prepare sodium hypochlorite solution, provided with a sodium hypochlorite outlet, and connected with a reaction tank and a clean water tank; and

[0008] A control part, comprising a power supply and a controller.

[0009] Preferably, the electrolytic device is further provided with an acid inlet, and the acid inlet is provided with an acid washing valve.

[0010] Preferably, the sodium hypochlorite outlet is connected with a disinfection tank, and the disinfection tank adds sodium hypochlorite solution into the reaction tank and the clean water tank through a dosing pump.

[0011] Preferably, the electrolytic device is further provided with a blower for discharging hydrogen generated by electrolysis.

[0012] Preferably, the cement industry sodium hypochlorite preparation system further comprises a brine dilution system, the brine dilution system comprising a mixer arranged at the output of the brine tank and the soft water tank.

[0013] Preferably, the control unit further comprises a display screen.

[0014] From the above technical solutions, the present application has the following advantages:

[0015] 1. In the present application, the brine and soft water in the brine tank and the soft water tank are pumped into the mixer for mixing and treatment, and then transported to the electrolytic device for electrolysis to produce sodium hypochlorite disinfectant and hydrogen gas. The hydrogen gas is discharged outside by the air blower, and the disinfectant is transported to the disinfectant tank for storage and can be pumped into the reaction pool for daily use and the clean water pool. The addition of disinfectant in the reaction pool can greatly reduce the growth of algae, which is of great significance for the daily maintenance and operation of the water preparation system. The addition of disinfectant in the clean water pool can effectively kill bacteria and microorganisms in the water, ensuring water safety. Therefore, the sodium hypochlorite preparation system in the present application has high automation degree. The dissolution of salt, the adjustment and transportation of brine, the production and addition of sodium hypochlorite are all automatically controlled, and the system can operate normally with less manual intervention. Only periodic addition of refined salt is required to realize the addition of disinfectant. The system is equipped with multiple equipment protection, water shortage protection, electrolyte temperature detection, etc., to ensure normal operation of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 Figure 1 is a cement industry sodium hypochlorite preparation system provided by the present application;

[0017] Figure 2 Figure 2 is a cement industry sodium hypochlorite preparation system provided by the present application;

[0018] Figure 3 Figure 3 is a brine dilution system of the present application.

[0019] In the figure: 110, brine tank; 120, soft water tank; 130, mixer; 20, electrolytic device; 210, sodium hypochlorite outlet; 220, acid inlet; 230, acid washing valve; 240, disinfectant tank; 30, reaction pool; 40, clean water pool; 510, power supply; 520, display screen. DETAILED DESCRIPTION

[0020] The preferred embodiment of the present application will be described in detail below with reference to the accompanying drawings.

[0021] To achieve the above object, the embodiments of the present application adopt the following technical solutions: refer to Figure 1The utility model provides a cement industry sodium hypochlorite preparation system, including raw material part, electrolytic device 20 and control part, specifically, raw material part includes brine tank 110 and soft water tank 120, and the output of brine tank 110 and soft water tank 120 is connected with mixer 130, this mixer 130 is used to mix the brine that is transported through brine tank and soft water tank, to make the solution uniform, electrolytic device sets up at the output of raw material part, is used to electrolysis brine preparation sodium hypochlorite solution, just, be equipped with sodium hypochlorite export 210 on electrolytic device, sodium hypochlorite export is connected with reaction pool 30 and clean water pool 40, control part includes power supply 510 and controller, power supply is used to provide power for whole preparation system, and the controller is used to control preparation process, when using, the brine in brine tank and the soft water in soft water tank are mixed and then transported to electrolytic device to electrolysis to produce sodium hypochlorite disinfectant and hydrogen, hydrogen is discharged to the outside through the air blower, and the disinfectant is transported to the disinfectant tank for storage and can be pumped into the reaction pool and the clean water pool for domestic use, the reaction pool can greatly reduce the growth of algae due to the addition of disinfectant, which is of great significance to the daily maintenance and operation of the domestic water preparation system, and the clean water pool can effectively kill bacteria and microorganisms in the water after adding disinfectant, ensuring water safety. Therefore, the sodium hypochlorite preparation system in the utility model has high automation degree, salt dissolution, brine deployment and transportation, sodium hypochlorite production and addition, all of which are automatically controlled, and normal operation can be realized with less manual intervention, and only refined salt needs to be added regularly to realize medicament addition, and multiple equipment protection, water shortage protection, electrolyte temperature detection, etc. are provided to ensure normal operation of the equipment.

[0022] Reference Figure 2 As a preferred technical solution of the embodiment, the electrolytic device 20 is further provided with an acid inlet 220, and an acid washing valve 230 is arranged on the acid inlet. It should be noted that the system water hardness index is less than 10 mg / L (calculated by calcium carbonate), and acid washing is required after the equipment runs for 720 hours. The acid washing requires a food-grade citric acid solution with a concentration of 10% or a 5% hydrochloric acid solution. At the same time, this acid washing period is the reference time. If the electrolytic cell temperature is too high and the electrolytic current is too low during the operation of the equipment, acid washing is required even if the time is less than 720 hours. If the acid washing period is less than 480 hours, it is necessary to check whether the treatment effect of the water softener meets the standard or consider whether the raw materials meet the standard, and the softening resin needs to be replaced if necessary. Under normal circumstances, the service life of the softening resin is about 1 year. After being treated by the water softener, the soft water hardness is less than 10 mg / L (calculated by calcium carbonate), and the softening resin needs to be replaced if the soft water hardness is too high. If the dilute brine hardness exceeds 50 mg / L (calculated by calcium carbonate), the acid washing frequency will increase.

[0023] The acid washing steps are as follows:

[0024] 1. When cleaning the electrolytic cell, the control screen needs to be automatically stopped, and after stopping, the electrolytic cell drain valve is opened to empty;

[0025] 2. After emptying the electrolytic cell, close the drain valve;

[0026] 3. Open the pickling valve, pour the acid into the acid inlet at the top of the preparation host until the electrode in the electrolytic cell is soaked for 30 minutes (the specific time is accurate when the electrode is clean);

[0027] 4. After cleaning, open the drain valve and the flushing valve to clean the residual acid and impurities in the electrolytic cell. When opening the flushing valve, pay attention to the water inflow not to be too large to prevent the flushing water from filling the electrolytic cell and flowing to the sodium hypochlorite storage tank;

[0028] 5. After cleaning, close the flushing valve and the drain valve. After pickling, the machine can be started.

[0029] Further, the sodium hypochlorite outlet 210 is connected with a disinfection tank 240, and the disinfection tank adds sodium hypochlorite solution to the reaction tank 30 and the clean water tank 40 through the adding pump. In this way, the sodium hypochlorite disinfectant prepared by the electrolytic device is stored in the disinfection tank, and the disinfectant in the disinfection tank can be delivered to the reaction tank and the clean water tank through the adding pump. In the field of cement production, the reaction tank can greatly reduce the growth of algae due to the addition of disinfectant, which is of great significance to the daily maintenance and operation of the water preparation system. The disinfectant added to the clean water tank can effectively kill bacteria and microorganisms, ensuring water safety.

[0030] Referring to Figure 3 In some embodiments, the electrolytic device 20 is also provided with a blower for discharging hydrogen generated by electrolysis. The presence of the blower can facilitate the discharge of hydrogen generated by electrolysis from the electrolytic device.

[0031] Further, the sodium hypochlorite preparation system for cement industry also includes a salt water dilution system, which includes a mixer 130 arranged at the output end of the salt water tank and the soft water tank. In use, the salt water in the salt water tank and the soft water in the soft water tank are pumped into the mixer 130 for mixing treatment, and the amount of salt water and soft water entering the mixer 130 can be controlled during this process, thereby controlling the salt water concentration.

[0032] Further, the control part further includes a display screen 520, which can display related parameters in the preparation process and can control the preparation process by operating the display screen.

[0033] In use, the brine and soft water in the brine tank 110 and the soft water tank 120 are pumped into the mixer 130 for mixing treatment, and the brine concentration is diluted and reduced after mixing. Then, the brine is pumped into the electrolytic device 20 to generate sodium hypochlorite disinfectant and hydrogen gas. The hydrogen gas is discharged outside by the air blower, and the disinfectant is pumped into the disinfectant tank 240 for storage and can be pumped into the domestic reaction tank 30 and the clean water tank 40. The reaction tank 30 can greatly reduce the growth of algae due to the addition of disinfectant, which is of great significance to the daily maintenance and operation of the domestic water preparation system. The addition of disinfectant to the clean water tank 40 can effectively kill bacteria and microorganisms in the tank, ensuring water safety.

[0034] The above-described embodiments are merely preferred embodiments of the present application and are not intended to limit the scope of the present application. Various modifications and improvements to the technical solutions of the present application made by those of ordinary skill in the art without departing from the design spirit of the present application shall fall within the protection scope of the claims of the present application.

Claims

1. A system for producing sodium hypochlorite for the cement industry, characterized in that it comprises: The preparation system comprises: a raw material part comprising a brine tank (110) and a soft water tank (120); an electrolysis device (20) arranged at an output end of the raw material part for electrolyzing the brine to prepare a sodium hypochlorite solution, the electrolysis device being provided with a sodium hypochlorite outlet (210) connected with a reaction tank (30) and a clean water tank (40); and a control part comprising a power supply (510) and a controller.

2. The system for producing sodium hypochlorite for the cement industry according to claim 1, characterized in that, The electrolysis device (20) is further provided with an acid adding port (220) provided with an acid washing valve (230).

3. The system for producing sodium hypochlorite for the cement industry according to claim 1, characterized in that, The sodium hypochlorite outlet (210) is connected with a disinfection tank (240) for adding the sodium hypochlorite solution into the reaction tank (30) and the clean water tank (40) through a dosing pump.

4. The system for producing sodium hypochlorite for the cement industry according to claim 1, characterized in that, The electrolysis device (20) is further provided with a blower for discharging hydrogen gas generated by electrolysis.

5. The system for producing sodium hypochlorite for the cement industry according to claim 1, characterized in that, The sodium hypochlorite preparation system for cement industry further comprises a brine dilution system comprising a mixer (130) arranged at the output ends of the brine tank (110) and the soft water tank (120).

6. The system for producing sodium hypochlorite for the cement industry according to claim 1, characterized in that, The control part further comprises a display screen (520).

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