Mixing device for sodium hypochlorite production

Abstract

The utility model discloses a mixing device for sodium hypochlorite production, which comprises a box body, a chlorine conveying pipe is communicated with the side surface of the box body, a spiral stirring mechanism is fixedly arranged in the box body, a circulating liquid pump is fixedly arranged on the side surface of the box body, and the liquid outlet end of the circulating liquid pump extends into the top surface in the box body through a pipeline and is communicated with an atomizing nozzle. According to the utility model, chlorine is effectively dispersed into a sodium hydroxide solution through the chlorine dispersion pipe at the extension end of the chlorine delivery pipe at the bottom of the box body, so that the uniform distribution of gas in the solution is ensured, and the gas-liquid contact area and the reaction rate are increased; the multiple groups of atomizing nozzles effectively intercept chlorine which is not completely reacted and prevent the chlorine from directly overflowing out of the device and the chlorine recovery pipeline communicated with the top of the device, and the escaped chlorine is conveyed into the chlorine conveying pipeline again through the sucking pump, so that the loss of the chlorine is reduced, and the risk of environmental pollution can be effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sodium hypochlorite production devices, in particular to a mixing device for sodium hypochlorite production. Background Art

[0002] Sodium hypochlorite, chemical formula NaClO, is a commonly used disinfectant and bleaching agent, which is widely used in water treatment, food processing and health care. Its production method usually involves gradually passing chlorine gas into sodium hydroxide solution to generate sodium hypochlorite through chemical reaction. In traditional sodium hypochlorite production equipment, the mixing of chlorine gas and sodium hydroxide solution usually has several significant problems, which directly leads to low reaction efficiency and waste of raw materials, and may even cause environmental pollution.

[0003] Uneven mixing: Chlorine gas and sodium hydroxide solution often cannot be fully mixed. This is because in traditional devices, chlorine gas is usually directly introduced into the solution from the bottom, and the stirring and mixing effect of the solution is limited. This results in some chlorine gas failing to quickly contact and react with the sodium hydroxide in the solution, thus affecting the rate and integrity of the reaction.

[0004] Untimely reaction: Due to uneven mixing, part of the chlorine may be directly discharged from the solution without sufficient reaction. This not only wastes the chlorine raw material, but also reduces the output of sodium hypochlorite and increases production costs.

[0005] Waste and pollution: Direct discharge of unreacted chlorine may pollute the environment, and because chlorine is a toxic gas, its release also poses a safety risk. In addition, the waste of raw materials also directly affects the economic and sustainability of production. Utility Model Content

[0006] 1. Technical issues

[0007] The utility model provides a mixing device for sodium hypochlorite production, aiming to solve the problem of waste and pollution caused by uneven gas-liquid mixing in traditional sodium hypochlorite production devices.

[0008] (II) Technical content

[0009] In order to solve the above technical problems, the technical solution of the utility model is: a mixing device for sodium hypochlorite production, comprising a box body, a feed port is arranged on the side of the box body and a discharge port is arranged at the bottom, the bottom of the box body is filled with sodium hydroxide solution, a chlorine gas delivery pipe is connected to the side of the box body, the chlorine gas delivery pipe extends to the bottom of the box body and is immersed in the sodium hydroxide solution, a spiral stirring mechanism is fixedly arranged inside the box body, a circulating liquid pump is fixedly arranged on the side of the box body, the liquid inlet end of the circulating liquid pump extends into the inside of the box body and the liquid outlet end extends into the top surface of the inside of the box body through a pipeline, one end of the pipeline extending into the top surface of the inside of the box body is connected to an atomizing nozzle, and the top of the box body is connected to a gas recovery mechanism.

[0010] Furthermore, the gas recovery mechanism comprises a chlorine recovery pipeline connected to the top of the box body, the other end of the chlorine recovery pipeline is connected to an air pump, and the other end of the air pump is connected to the chlorine delivery pipe.

[0011] Furthermore, a first solenoid valve is fixedly provided on the chlorine gas delivery pipe, and a second solenoid valve is fixedly provided at the gas outlet of the vacuum pump.

[0012] Furthermore, the spiral stirring mechanism includes a horizontal plate fixedly arranged inside the box body, a spiral stirrer is rotatably arranged on the horizontal plate, a bevel gear 1 is fixedly arranged on the upper end of the rotating shaft of the spiral stirrer, a motor is fixedly arranged outside the box body, a bevel gear 2 is fixedly arranged on one end of the driving shaft of the motor extending into the inside of the box body, and bevel gear 1 is meshed with bevel gear 2.

[0013] Furthermore, the atomizing nozzles are arranged in two groups and the two groups of atomizing nozzles are distributed vertically.

[0014] Furthermore, one end of the chlorine gas delivery pipe extending to the bottom of the box body is connected to a chlorine gas dispersion pipe.

[0015] (III) Technical Effect

[0016] Compared with the prior art, the utility model has the following advantages: the extended end of the chlorine delivery pipe designed at the bottom of the box effectively disperses the chlorine into the sodium hydroxide solution through the chlorine dispersion pipe. This design ensures the uniform distribution of the gas in the solution, increases the gas-liquid contact area and the reaction rate. A spiral agitator is provided inside the device, which is driven by a motor and can continuously mix the solution and the gas to ensure uniformity and efficiency during the reaction. Multiple groups of atomizing nozzles arranged at the top of the device increase the gas-liquid contact area and further improve the efficiency of the reaction. These nozzles effectively intercept the unreacted chlorine to prevent it from directly overflowing the device, reducing the waste of raw materials. The chlorine recovery pipeline connected to the top of the device re-delivers the escaped chlorine to the chlorine delivery pipeline through a vacuum pump. This process not only reduces the loss of chlorine, but also effectively reduces the risk of environmental pollution and improves the sustainability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional schematic diagram of a mixing device for sodium hypochlorite production in the utility model. Figure 1 .

[0018] Figure 2 This is a three-dimensional schematic diagram of a mixing device for sodium hypochlorite production in the utility model. Figure 2 .

[0019] Figure 3 This is a three-dimensional schematic diagram of a mixing device for sodium hypochlorite production in the utility model. Figure 3 .

[0020] Figure 4 The utility model is a main structural schematic diagram of a mixing device for sodium hypochlorite production.

[0021] Figure 5 The utility model is a schematic diagram of the cross-sectional structure of a mixing device for producing sodium hypochlorite.

[0022] As shown in the figure: 1. Box body; 2. Feed inlet; 3. Discharge outlet; 4. Chlorine gas delivery pipe; 5. Circulating liquid pump; 6. Pipeline; 7. Atomizing nozzle; 8. Chlorine gas recovery pipeline; 9. Vacuum pump; 10. Solenoid valve 1; 11. Solenoid valve 2; 12. Horizontal plate; 13. Spiral agitator; 14. Bevel gear 1; 15. Motor; 16. Bevel gear 2; 17. Chlorine gas dispersion pipe. DETAILED DESCRIPTION

[0023] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "inside", "outside", "center", etc. indicate directions or positional relationships 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 structure and operation. Therefore, they should not be understood as limitations on the present invention.

[0024] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "provided with", "installed", "connected", "connected" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0026] Combined with Figure 1 To Attachment Figure 5 A mixing device for producing sodium hypochlorite comprises a box body 1, a feed port 2 is arranged on the side of the box body and a discharge port 3 is arranged on the bottom, a sodium hydroxide solution is contained in the bottom of the box body 1, a chlorine gas delivery pipe 4 is connected to the side of the box body 1, the chlorine gas delivery pipe 4 extends to the bottom of the box body 1 and is immersed in the sodium hydroxide solution, one end of the chlorine gas delivery pipe 4 extending to the bottom of the box body 1 is connected to a chlorine gas dispersion pipe 17, a spiral stirring mechanism is fixedly arranged inside the box body 1, a circulating liquid pump 5 is fixedly arranged on the side of the box body 1, a liquid inlet end of the circulating liquid pump 5 extends into the inside of the box body 1 and a liquid outlet end extends into the top surface of the inside of the box body 1 through a pipe 6, one end of the pipe 6 extending into the top surface of the inside of the box body 1 is connected to an atomizing nozzle 7, two groups of the atomizing nozzle 7 are arranged and the two groups of atomizing nozzles 7 are distributed up and down, and a gas recovery mechanism is connected to the top of the box body 1.

[0027] Reference Figure 1 The gas recovery mechanism includes a chlorine recovery pipeline 8 connected to the top of the box body 1, and the other end of the chlorine recovery pipeline 8 is connected to a vacuum pump 9, and the other end of the vacuum pump 9 is connected to the chlorine delivery pipe 4. A solenoid valve 10 is fixed on the chlorine delivery pipe 4, and a solenoid valve 2 11 is fixed at the gas outlet of the vacuum pump 9.

[0028] The device can effectively recover the escaped chlorine through the chlorine recovery pipeline 8 connected to the top of the box. The other end of the chlorine recovery pipeline is connected to an air pump 9, which is connected to the chlorine delivery pipe (4) to form a closed loop system. Solenoid valve 10 and solenoid valve 2 11 control the opening and closing of the chlorine delivery pipeline 4 and the chlorine recovery pipeline. When chlorine is normally delivered, solenoid valve 2 11 is closed and solenoid valve 10 is opened. When the chlorine inside the box is recovered, solenoid valve 2 11 and air pump 9 are opened and solenoid valve 10 is closed. Prevent chlorine from flowing back or reversely entering the box from the chlorine recovery pipeline.

[0029] Reference Figure 5 The spiral stirring mechanism includes a horizontal plate 12 fixedly arranged inside the box body 1, a spiral stirrer 13 is rotatably arranged on the horizontal plate 12, a bevel gear 14 is fixedly arranged on the upper end of the rotating shaft of the spiral stirrer 13, a motor 15 is fixedly arranged outside the box body 1, and a bevel gear 2 16 is fixedly arranged on one end of the driving shaft of the motor 15 extending into the inside of the box body 1, and the bevel gear 14 is meshed with the bevel gear 2 16.

[0030] Specific implementation mode of the utility model: Before use, the utility model is first connected to an external power supply, and the sodium hydroxide solution is poured into the interior of the box body 1 from the feed port 2, the feed port 2 and the discharge port 3 are closed, and then chlorine is introduced. When the chlorine is introduced, the solenoid valve 10 is opened, the solenoid valve 2 11 is closed, and the chlorine enters the chlorine dispersion pipe 17 and is evenly introduced into the solution, reacting with the solution to produce sodium hypochlorite. The motor 15 is started at the same time of the reaction to drive the bolt stirrer 13 to work and stir the solution to promote uniform mixing. For the chlorine that escapes due to timely reaction, the circulating liquid pump 5 is started to spray the solution into the box body through the atomizing nozzle 7, and the atomized solution reacts with the chlorine to reduce the escape amount of chlorine. Finally, the remaining chlorine accumulates on the top of the box body. After a period of time, the solenoid valve 10 is closed, and the vacuum pump 9 and the solenoid valve 2 11 are opened to pump the chlorine accumulated inside the box body into the chlorine delivery pipe 4, and enter the solution again through the chlorine delivery pipe 4 for a cyclic reaction.

[0031] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A mixing device for producing sodium hypochlorite, comprising a box (1), a feed inlet (2) on the side of the box and a discharge outlet (3) at the bottom, a sodium hydroxide solution being contained at the bottom of the box (1), characterized in that: A chlorine gas delivery pipe (4) is connected to the side of the box (1), and the chlorine gas delivery pipe (4) extends to the bottom of the box (1) and is immersed in the sodium hydroxide solution. A spiral stirring mechanism is fixedly provided inside the box (1). A circulating liquid pump (5) is fixedly provided on the side of the box (1). The liquid inlet end of the circulating liquid pump (5) extends into the inside of the box (1) and the liquid outlet end extends into the top surface of the inside of the box (1) through a pipe (6). One end of the pipe (6) extending into the top surface of the inside of the box (1) is connected to an atomizing nozzle (7), and the top of the box (1) is connected to a gas recovery mechanism.

2. A mixing device for sodium hypochlorite production according to claim 1, characterized in that: The gas recovery mechanism comprises a chlorine recovery pipeline (8) connected to the top of the box (1); the other end of the chlorine recovery pipeline (8) is connected to an air pump (9); the other end of the air pump (9) is connected to the chlorine delivery pipe (4).

3. A mixing device for sodium hypochlorite production according to claim 2, characterized in that: A solenoid valve 1 (10) is fixedly provided on the chlorine gas delivery pipe (4), and a solenoid valve 2 (11) is fixedly provided at the gas outlet of the vacuum pump (9).

4. A mixing device for sodium hypochlorite production according to claim 1, characterized in that: The spiral stirring mechanism comprises a horizontal plate (12) fixedly arranged inside the box body (1), a spiral stirrer (13) being rotatably arranged on the horizontal plate (12), a bevel gear 1 (14) being fixedly arranged on the upper end of the rotating shaft of the spiral stirrer (13), a motor (15) being fixedly arranged outside the box body (1), a bevel gear 2 (16) being fixedly arranged on one end of the driving shaft of the motor (15) extending into the inside of the box body (1), and the bevel gear 1 (14) being meshed with the bevel gear 2 (16).

5. A mixing device for sodium hypochlorite production according to claim 1, characterized in that: The atomizing nozzles (7) are arranged in two groups, and the two groups of atomizing nozzles (7) are arranged in an upper and lower distributed manner.

6. A mixing device for sodium hypochlorite production according to claim 1, characterized in that: One end of the chlorine gas delivery pipe (4) extending to the bottom of the box body (1) is connected to a chlorine gas dispersion pipe (17).

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