Chlor-alkali chemical salt water impurity removal device

Abstract

The utility model relates to an impurity removal device, in particular to an impurity removal device for chlor-alkali chemical salt water. Comprising a pretreatment box, an acid liquor storage tank, an alkali liquor storage tank, a pH sensor, a feeding pipe, a stirring mechanism, a conveying pipe, an impurity removal box, a first water pump, a filter screen, a discharging pipe and the like. An acid liquor storage tank and an alkali liquor storage tank are arranged on the upper side of the pretreatment box, electric valves are arranged at joints of the acid liquor storage tank and the alkali liquor storage tank with the pretreatment box, a pH sensor and a stirring mechanism are arranged in the pretreatment box, a feeding pipe is arranged on the upper portion of the left side of the pretreatment box, an impurity removal box is arranged on the right side of the pretreatment box, and the pretreatment box is communicated with the impurity removal box through a conveying pipe. According to the utility model, the electric valve of the acid liquor storage tank or the alkali liquor storage tank is controlled through the pH sensor and the controller, so that the pH value of the saline water can be quickly and accurately adjusted, and meanwhile, the arrangement of the stirring mechanism ensures that a regulator can be quickly and uniformly dispersed in the saline water, so that the pH value adjusting efficiency is improved.

Description

Technical Field

[0001] The utility model relates to an impurity removal device, in particular to a chlor-alkali chemical brine impurity removal device. Background Art

[0002] In the chlor-alkali chemical production process, brine is a key raw material, and its quality directly affects the efficiency of subsequent processes and the quality of the final product. The original brine often contains various impurities, such as suspended matter, organic matter, inorganic salts, etc. These impurities will not only affect the chemical reaction, but also may cause equipment blockage and corrosion. Therefore, removing impurities from brine is an indispensable part of chlor-alkali chemical production.

[0003] In the chlor-alkali industry, carbonate ions and hydroxide ions are usually used to react with impurities to form precipitates, which are then filtered. In order to improve filtration efficiency and ensure filtration quality, the pH value of the brine needs to be adjusted before filtration. Existing methods for adjusting the pH value of brine mostly rely on the manual addition of acid or alkali regulators. This method is difficult to ensure the accuracy of the amount added and can easily cause the local pH to not meet the requirements, thereby affecting product quality. Utility Model Content

[0004] In order to overcome the disadvantages that the pH value of brine is adjusted manually and it is difficult to ensure the accuracy of the added amount, the utility model provides a chlor-alkali chemical brine impurity removal device.

[0005] The technical implementation scheme of the utility model is: a chlor-alkali chemical brine impurity removal device, including a pretreatment box, an acid storage tank, an alkali storage tank, a pH sensor, a feed pipe, a stirring mechanism, a transmission pipe, an impurity removal box, a first water pump, a filter, a discharge pipe, a controller and an electric valve, an acid storage tank and an alkali storage tank are arranged on the upper side of the pretreatment box, and electric valves are arranged at the connections between the acid storage tank and the alkali storage tank and the pretreatment box, a pH sensor and a stirring mechanism are arranged inside the pretreatment box, a feed pipe is arranged on the upper left side of the pretreatment box, and an impurity removal box is arranged on the right side of the pretreatment box, the pretreatment box and the impurity removal box are connected through a transmission pipe, a first water pump is arranged in the middle of the transmission pipe, one end of the transmission pipe is located at the lower side of the pretreatment box, and the other end is located at the upper side of the impurity removal box, a filter is arranged in the impurity removal box, a discharge pipe is arranged at the lower side of the impurity removal box, a controller is arranged on the front side of the pretreatment box, and the pH sensor, the stirring mechanism, the first water pump and the electric valve are all electrically connected to the controller.

[0006] In a preferred embodiment of the utility model, the stirring mechanism includes a pulley, a transmission belt, a motor and a stirring rod. Two pulleys are rotatably provided on the left side of the pretreatment box, and a transmission belt is wound around the outside of the two pulleys. A motor is installed on the left side of the pretreatment box, and the output shaft of the motor is connected to one of the pulleys. The two pulleys are respectively connected to the two stirring rods.

[0007] In a preferred embodiment of the utility model, a connecting pipe and a branch pipe are also included. One end of the transmission pipe located in the impurity removal box is connected to the connecting pipe, and a plurality of branch pipes are evenly arranged on the connecting pipe from front to back.

[0008] In a preferred embodiment of the present invention, the diameter of the branch pipe farther from the transmission pipe is larger than the diameter of the branch pipe closer to the transmission pipe.

[0009] In a preferred embodiment of the utility model, a second water pump and a reflux pipe are also included. The discharge pipe is provided with a second water pump. One end of the reflux pipe is connected to the second water pump, and the other end is connected to the connecting pipe.

[0010] In a preferred embodiment of the present invention, the front sides of the acid storage tank and the alkali storage tank are both transparent and marked with scales.

[0011] Beneficial effects: 1. The utility model controls the electric valve of the acid storage tank or the alkali storage tank through the pH sensor and the controller, thereby realizing rapid and accurate adjustment of the pH value of the brine. At the same time, the setting of the stirring mechanism ensures that the regulator can be quickly and evenly dispersed in the brine, thereby improving the efficiency of pH adjustment and ensuring that the pH value of the brine is more uniform, thus avoiding the situation where the local pH value does not meet the requirements.

[0012] 2. Through the setting of connecting pipes and branch pipes, the utility model can spray brine on the filter more evenly, fully covering the filter, thereby improving the efficiency of the filtering process. At the same time, the design of different pipe diameters helps to maintain the consistency of the brine flow rate, ensuring that the brine can be evenly distributed and pass through the filter, further improving the filtering effect.

[0013] 3. The utility model uses the design of the second water pump and the reflux pipe to enable the brine to be re-transported to the connecting pipe for multiple filtrations, thereby ensuring that as many impurities as possible are removed and improving the purity of the final product. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0015] Figure 2 It is a cross-sectional view of the pretreatment box of the utility model.

[0016] Figure 3 It is a cross-sectional view of the debris removal box of the utility model.

[0017] Figure 4 It is a three-dimensional structural schematic diagram of the transmission pipe, connecting pipe and branch pipe of the utility model.

[0018] Among them: 1-pretreatment box, 2-acid storage tank, 3-alkali storage tank, 4-pH sensor, 5-feeding pipe, 6-pulley, 7-transmission belt, 8-motor, 9-stirring rod, 10-transmission pipe, 11-impurity removal box, 12-first water pump, 13-connecting pipe, 14-branch pipe, 15-filter screen, 16-discharging pipe, 17-second water pump, 18-reflux pipe, 19-controller, 20-electric valve. DETAILED DESCRIPTION

[0019] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments, but is not intended to limit the present invention.

[0020] A chlor-alkali chemical brine impurity removal device, such as Figure 1-Figure 4 As shown, it includes a pretreatment box 1, an acid storage tank 2, an alkali storage tank 3, a pH sensor 4, a feed pipe 5, a stirring mechanism, a transmission pipe 10, a de-impurity box 11, a first water pump 12, a filter 15, a discharge pipe 16, a controller 19 and an electric valve 20. The acid storage tank 2 and the alkali storage tank 3 are arranged on the upper side of the pretreatment box 1, and the electric valve 20 is arranged at the connection between the acid storage tank 2 and the alkali storage tank 3 and the pretreatment box 1. The pretreatment box 1 is provided with a pH sensor 4 and a stirring mechanism. The feed pipe 5 is arranged on the upper left side of the pretreatment box 1, and the de-impurity box is arranged on the right side of the pretreatment box 1. 11, the pretreatment box 1 and the impurity removal box 11 are connected through a transmission pipe 10, a first water pump 12 is provided in the middle of the transmission pipe 10, the first water pump 12 is installed on the upper side of the impurity removal box 11, one end of the transmission pipe 10 is located at the lower side of the pretreatment box 1, and the other end is located at the upper side of the impurity removal box 11, a filter screen 15 is provided in the impurity removal box 11, the transmission pipe 10 is located above the filter screen 15, a discharge pipe 16 is provided on the lower side of the impurity removal box 11, a controller 19 is provided on the front side of the pretreatment box 1, and the pH sensor 4, the stirring mechanism, the first water pump 12 and the electric valve 20 are all electrically connected to the controller 19.

[0021] When in use, the brine enters the pretreatment box 1 from the feed pipe 5, the pH sensor 4 detects the acidity and alkalinity of the brine, and then the controller 19 controls the electric valve 20 on the lower side of the acid storage tank 2 or the alkali storage tank 3 to open, and the acid regulator or the alkali regulator is input to adjust the pH value of the brine. At the same time, the stirring mechanism stirs the brine to make it fully mixed with the regulator. When the pH sensor 4 detects that the pH value is at a suitable value after stirring, the electric valve 20 is closed, and the first water pump 12 transports the brine to the impurity removal box 11, and the brine is filtered and impurities are removed through the filter screen 15.

[0022] like Figure 2As shown, the stirring mechanism includes a pulley 6, a transmission belt 7, a motor 8 and a stirring rod 9. Two pulleys 6 are rotatably provided on the left side of the pretreatment box 1. The transmission belt 7 is wound around the outer sides of the two pulleys 6. A motor 8 is installed on the left side of the pretreatment box 1. The output shaft of the motor 8 is connected to one of the pulleys 6. The two pulleys 6 are respectively connected to two stirring rods 9. The two stirring rods 9 are respectively located on the upper and lower sides of the pretreatment box 1, and the two stirring rods 9 do not interfere with each other. When adjusting the pH value, the motor 8 drives the pulley 6 connected thereto to rotate, and the pulley 6 drives the other pulley 6 to rotate synchronously through the transmission belt 7. The pulley 6 drives the stirring rod 9 to rotate, so that the added acid regulator or alkali regulator can be quickly and evenly dispersed, thereby improving the efficiency of pH value adjustment and making the pH value of the brine more uniform everywhere, thereby avoiding the situation where the local pH value does not meet the requirements.

[0023] like Figure 3 and Figure 4 As shown, a connecting pipe 13 and a branch pipe 14 are also included. One end of the transmission pipe 10 located in the impurity removal box 11 is connected to the connecting pipe 13, and the connection is located on the upper side of the middle of the connecting pipe 13. The connecting pipe 13 is evenly provided with multiple branch pipes 14 from front to back and left to right. The branch pipes 14 allow the brine to be sprayed more evenly on the filter screen 15. The brine can fully cover the filter screen 15 instead of being concentrated in one area, thereby improving the efficiency of the brine filtering process and preventing the filter screen 15 from quickly accumulating impurities due to the brine being filtered only through a local area, thereby preventing the problem of local blockage.

[0024] The diameter of the branch pipe 14 farther from the transmission pipe 10 is larger than that of the branch pipe 14 closer to the transmission pipe 10. The different diameters help to keep the flow rate of the brine flowing out of different branch pipes 14 more consistent, ensuring that the brine can be evenly distributed through the filter screen 15, further improving the filtering effect.

[0025] like Figure 1-Figure 4 As shown, a second water pump 17 and a reflux pipe 18 are also included. The discharge pipe 16 is provided with the second water pump 17. One end of the reflux pipe 18 is connected to the second water pump 17, and the other end is connected to the upper side of the connecting pipe 13. The second water pump 17 and the reflux pipe 18 can transport the brine back to the connecting pipe 13 for multiple filtrations to ensure that as many impurities as possible are removed, thereby improving the purity of the final product.

[0026] The front sides of the acid storage tank 2 and the alkali storage tank 3 are both transparent and marked with scales. The transparent and scaled design facilitates the operator to intuitively monitor the remaining amount of the acid regulator and the alkali regulator, and facilitates timely replenishment.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit the protection scope of the utility model. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A chlor-alkali chemical brine impurity removal device, comprising a pretreatment box (1), an impurity removal box (11) and a filter (15), wherein the impurity removal box (11) is arranged on the right side of the pretreatment box (1), and the filter (15) is arranged inside the impurity removal box (11), wherein: The pretreatment box (1) also includes an acid storage tank (2), an alkali storage tank (3), a pH sensor (4), a feed pipe (5), a stirring mechanism, a transmission pipe (10), a first water pump (12), a discharge pipe (16), a controller (19) and an electric valve (20). The acid storage tank (2) and the alkali storage tank (3) are arranged on the upper side of the pretreatment box (1). The connection between the acid storage tank (2) and the alkali storage tank (3) and the pretreatment box (1) is provided with an electric valve (20). The pH sensor (4) is arranged inside the pretreatment box (1). A pH sensor (4) and a stirring mechanism are provided, a feed pipe (5) is provided at the upper left side of the pretreatment box (1), the pretreatment box (1) and the impurity removal box (11) are connected via a transmission pipe (10), a first water pump (12) is provided in the middle of the transmission pipe (10), a discharge pipe (16) is provided at the lower side of the impurity removal box (11), a controller (19) is provided at the front side of the pretreatment box (1), and the pH sensor (4), the stirring mechanism, the first water pump (12) and the electric valve (20) are all electrically connected to the controller (19).

2. A chlor-alkali chemical brine impurity removal device according to claim 1, characterized in that: The stirring mechanism comprises a pulley (6), a transmission belt (7), a motor (8) and a stirring rod (9). The left side of the pretreatment box (1) is rotatably provided with two pulleys (6), the outer sides of the two pulleys (6) are wound with a transmission belt (7), and the left side of the pretreatment box (1) is equipped with a motor (8), the output shaft of the motor (8) is connected to one of the pulleys (6), and the two pulleys (6) are respectively connected to the two stirring rods (9).

3. A chlor-alkali chemical brine impurity removal device according to claim 2, characterized in that: It also includes a connecting pipe (13) and a branch pipe (14); one end of the transmission pipe (10) located in the impurity removal box (11) is connected to the connecting pipe (13); and the connecting pipe (13) is evenly provided with a plurality of branch pipes (14) from front to back.

4. A chlor-alkali chemical brine impurity removal device according to claim 3, characterized in that: The diameter of the branch pipe (14) farther from the transmission pipe (10) is larger than the diameter of the branch pipe (14) closer to the transmission pipe (10).

5. A chlor-alkali chemical brine impurity removal device according to claim 4, characterized in that: It also includes a second water pump (17) and a reflux pipe (18). The discharge pipe (16) is provided with the second water pump (17). One end of the reflux pipe (18) is connected to the second water pump (17), and the other end is connected to the connecting pipe (13).

6. A chlor-alkali chemical brine impurity removal device according to claim 5, characterized in that: The front sides of the acid storage tank (2) and the alkali storage tank (3) are both transparent and have scale marks thereon.

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