Sodium hypochlorite solution production waste liquid circulating device

Abstract

The utility model relates to the technical field of sodium hypochlorite production waste liquid treatment, and discloses a sodium hypochlorite solution production waste liquid circulating device which comprises a shell, a treatment box is installed in the shell, a mixing cavity is formed in the treatment box, the two sides of the treatment box are connected with a liquid inlet pipe and a liquid outlet pipe respectively, the liquid inlet pipe and the liquid outlet pipe are communicated with the mixing cavity, and the liquid inlet pipe and the liquid outlet pipe penetrate through the two sides of the shell respectively; a feeding part extending into the mixing chamber is mounted on the shell; an axial flow rotating piece located below the feeding piece is rotationally mounted in the middle of the mixing cavity, and a stirring piece extending into the feeding piece is mounted on the axial flow rotating piece. The utility model provides a waste liquid circulating device for sodium hypochlorite solution production, and solves the problem that in the chemical treatment process of a sodium hypochlorite solution, a reagent cannot be fully contacted and reacted with sodium hypochlorite and other harmful substances in the solution due to the fact that the reagent is usually added in a quantitative feeding manner.

Description

Technical Field

[0001] The utility model relates to the technical field of treatment of waste liquid in sodium hypochlorite production, and particularly relates to a waste liquid recycling device for sodium hypochlorite solution production. Background Technique

[0002] In the production of sodium hypochlorite solution, a large amount of waste liquid is generated. If directly discharged, it will pollute the environment and the resources cannot be effectively utilized. Therefore, a recycling device is needed to effectively utilize the waste liquid. First, the wastewater generated in the production process is collected, and then the large particle impurities and suspended substances in the waste liquid are removed by a grille or a screen in the recycling device. Then, chemical reagents are added to neutralize, precipitate or flocculate the harmful substances in the wastewater to remove harmful components such as chlorine and sodium hydroxide. After chemical treatment, the solid and liquid are separated by a filter to further remove the suspended substances and dissolved solids in the wastewater. Finally, the treated wastewater is used in the electrolytic cell as one of the raw materials for electrolysis to realize the recycling of wastewater.

[0003] In the chemical treatment process of sodium hypochlorite solution, since the reagent is usually added in a quantitative manner, it is easy to cause the reagent to not fully contact and react with sodium hypochlorite and other harmful substances in the solution, affecting the effect of removing harmful substances in the sodium hypochlorite solution.

[0004] To solve the above problems, a waste liquid recycling device for sodium hypochlorite solution production is proposed in this application. Content of the Utility Model

[0005] Based on the technical problems existing in the background technique, the utility model proposes a waste liquid recycling device for sodium hypochlorite solution production.

[0006] A waste liquid recycling device for sodium hypochlorite solution production proposed by the utility model includes a housing.

[0007] A treatment tank is installed in the housing. A mixing chamber is opened in the treatment tank. Liquid inlet pipes and liquid discharge pipes communicated with the mixing chamber are respectively connected to two sides of the treatment tank, and the liquid inlet pipe and the liquid discharge pipe respectively penetrate through two sides of the housing.

[0008] A feeding member extending into the mixing chamber is installed on the housing.

[0009] An axial flow rotating member is rotatably installed in the middle of the mixing chamber at a position below the feeding member. A stirring member extending into the feeding member is installed on the axial flow rotating member.

[0010] Preferably, the feeding member includes a feeding box which is installed above the housing. A feeding chamber is defined in the feeding box. A feeding pipe communicating with the feeding chamber is connected to the bottom of the feeding box, and the bottom end of the feeding pipe passes through the top of the treatment box and extends into the mixing chamber.

[0011] Preferably, the axial flow rotating member includes a rotating rod which is vertically arranged in the middle of the mixing chamber and below the feeding pipe. The bottom end of the rotating rod is rotatably connected to the inner bottom of the treatment box, and axial flow blades are mounted on the rotating rod between the liquid inlet pipe and the liquid outlet pipe.

[0012] Preferably, the stirring member includes a stirring rod which is mounted on the top end of the rotating rod and extends into the feeding pipe. A spiral blade located in the feeding pipe is fixedly sleeved on the stirring rod, and a stirring blade is mounted on the stirring rod below the feeding pipe.

[0013] Preferably, one end of the liquid outlet pipe away from the treatment box is connected to a filter.

[0014] The above technical solution of the present utility model has the following beneficial technical effects:

[0015] By providing the feeding member, the axial flow rotating member and the stirring member, the waste liquid filtered by the grille can be guided into the treatment box along the liquid inlet pipe and then discharged through the liquid outlet pipe. When the waste liquid flows through the surface of the axial flow rotating member in the treatment box, it can drive the axial flow rotating member and the stirring member extending into the feeding member to rotate simultaneously. When the stirring member rotates, it can guide the reagent in the feeding member into the treatment box to be mixed with the waste liquid, making the mixing of the reagent and the waste liquid sufficient. This structure enables the stirring member to rotate automatically along with the flow of the waste liquid, uniformly and continuously introducing the reagent into the treatment box to be fully mixed with the waste liquid, increasing the contact area between the reagent and the waste liquid and the reaction efficiency, and thus more effectively removing harmful substances in the solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 FIG. is a schematic structural diagram of a waste liquid recycling device for sodium hypochlorite solution production proposed by the present utility model.

[0017] Figure 2 For the present utility model Figure 1 is a partial structural schematic diagram.

[0018] Reference numerals: 1, housing; 2, treatment box; 3, liquid inlet pipe; 4, liquid outlet pipe; 5, feeding member; 51, feeding box; 52, feeding pipe; 6, axial flow rotating member; 61, rotating rod; 62, axial flow blades; 7, stirring member; 71, stirring rod; 72, spiral blade; 73, stirring blade. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] To make the objectives, technical solutions, and advantages of the present utility model clearer, the present utility model will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present utility model. In addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present utility model.

[0020] As Figure 1 shown in Figure 2 the figure, a sodium hypochlorite solution production waste liquid recycling device proposed by the present utility model includes a housing 1;

[0021] In this embodiment, a treatment tank 2 is installed inside the housing 1. A mixing chamber is provided inside the treatment tank 2. An inlet pipe 3 and a drain pipe 4 that communicate with the mixing chamber are respectively connected to both sides of the treatment tank 2, and the inlet pipe 3 and the drain pipe 4 respectively pass through both sides of the housing 1.

[0022] In this embodiment, a feeding member 5 that extends into the mixing chamber is installed on the housing 1. The feeding member 5 includes a feeding box 51. The feeding box 51 is installed above the housing 1. A feeding chamber is provided inside the feeding box 51. A feeding pipe 52 that communicates with the feeding chamber is connected to the bottom of the feeding box 51, and the bottom end of the feeding pipe 52 passes through the top of the treatment tank 2 and extends into the mixing chamber.

[0023] In this embodiment, an axial flow rotating member 6 is rotatably installed in the middle of the mixing chamber and is located below the feeding member 5. The axial flow rotating member 6 includes a rotating rod 61. The rotating rod 61 is vertically arranged in the middle of the mixing chamber and is located below the feeding pipe 52. The bottom end of the rotating rod 61 is rotatably connected to the bottom inside the treatment tank 2. Axial flow blades 62 are installed on the rotating rod 61 and are located between the inlet pipe 3 and the drain pipe 4.

[0024] In this embodiment, a stirring member 7 that extends into the feeding member 5 is installed on the axial flow rotating member 6. The stirring member 7 includes a stirring rod 71. The stirring rod 71 is installed at the top end of the rotating rod 61 and extends into the feeding pipe 52. A spiral blade 72 located inside the feeding pipe 52 is fixedly sleeved on the stirring rod 71. Stirring blades 73 are installed on the stirring rod 71 and are located below the feeding pipe 52.

[0025] It should be noted that: First, pour the reagent into the feeding box 51. Then, send the waste liquid filtered by the grille along the liquid inlet pipe 3 to the treatment box 2, and then discharge it through the liquid discharge pipe 4. When the waste liquid flows through the surface of the axial flow blade 62 in the treatment box 2, it can drive the axial flow blade 62 and the rotating rod 61 to rotate simultaneously. When the rotating rod 61 rotates, it can drive the stirring rod 71 and the spiral blade 72 located in the feeding pipe 52 to rotate simultaneously. When the spiral blade 72 rotates, it can send the reagent in the feeding box 51 along the feeding pipe 52 to the mixing chamber. When the stirring rod 71 rotates, it can stir the reagent and the waste liquid entering the mixing chamber through the stirring blade 73, so that the reagent and the waste liquid are fully mixed. This structure enables the stirring member 7 to rotate automatically with the flow of the waste liquid, uniformly and continuously introduce the reagent into the treatment box 2 to fully mix with the waste liquid, increasing the contact area and reaction efficiency between the reagent and the waste liquid, and thus more effectively removing harmful substances in the solution.

[0026] In a specific embodiment, one end of the liquid discharge pipe 4 away from the treatment box 2 is connected to a filter.

[0027] It should be noted that: After the waste liquid is mixed with the reagent, it can be sent to the filter through the liquid discharge pipe 4 to separate the solid and the liquid, further removing the suspended solids and dissolved solids in the waste water. Finally, the treated waste water is used in the electrolytic cell as one of the raw materials for electrolysis to realize the recycling of the waste water.

[0028] It should be understood that the above specific embodiments of the present invention are only used for exemplary illustration or explanation of the principle of the present invention, and do not constitute a limitation to the present invention. Therefore, any modifications, equivalent replacements, improvements, etc. made without departing from the spirit and scope of the present invention shall be included within the protection scope of the present invention. In addition, the appended claims of the present invention are intended to cover all changes and modifications that fall within the scope and boundary of the appended claims, or equivalent forms of such scope and boundary.

Claims

1. A sodium hypochlorite solution production waste liquid circulation device, comprising a housing (1), characterized in that: A processing box (2) is installed in the shell (1), a mixing chamber is provided in the processing box (2), and a liquid inlet pipe (3) and a liquid discharge pipe (4) communicating with the mixing chamber are respectively connected to two sides of the processing box (2), and the liquid inlet pipe (3) and the liquid discharge pipe (4) respectively pass through two sides of the shell (1); The housing (1) is provided with a feeding piece (5) extending into the mixing chamber; An axial flow rotating member (6) located below the feeding member (5) is rotatably mounted in the middle of the mixing chamber, and a stirring member (7) extending into the feeding member (5) is mounted on the axial flow rotating member (6).

2. A sodium hypochlorite solution production waste liquid circulation device according to claim 1, characterized in that: The feeding member (5) comprises a feeding box (51), which is installed at an upper position of the shell (1), and a feeding chamber is provided in the feeding box (51). The bottom of the feeding box (51) is connected to a feeding pipe (52) which is in communication with the feeding chamber, and the bottom end of the feeding pipe (52) passes through the top of the processing box (2) and extends into the mixing chamber.

3. A sodium hypochlorite solution production waste liquid circulation device according to claim 2, characterized in that: The axial flow rotating member (6) comprises a rotating rod (61), which is vertically arranged in the middle of the mixing chamber and located below the feeding pipe (52), the bottom end of the rotating rod (61) is rotatably connected to the bottom of the processing box (2), and the rotating rod (61) is provided with an axial flow blade (62) located between the liquid inlet pipe (3) and the liquid discharge pipe (4).

4. A sodium hypochlorite solution production waste liquid circulation device according to claim 3, characterized in that: The stirring member (7) comprises a stirring rod (71), which is mounted on the top end of the rotating rod (61) and extends into the feeding pipe (52), and a spiral blade (72) located in the feeding pipe (52) is fixedly mounted on the stirring rod (71), and a stirring blade (73) located below the feeding pipe (52) is mounted on the stirring rod (71).

5. A sodium hypochlorite solution production waste liquid circulation device according to claim 1, characterized in that: One end of the liquid discharge pipe (4) away from the processing box (2) is connected to a filter.

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