Automatic treatment device for fluorine-containing wastewater

Abstract

The utility model relates to the technical field of fluorine-containing wastewater treatment devices, and discloses an automatic fluorine-containing wastewater treatment device which comprises a treatment tank, the upper surface of the treatment tank is fixedly connected with a wastewater port, and the top of the treatment tank is fixedly connected with a motor box. According to the automatic treatment device for the fluorine-containing wastewater, through the arrangement of the stirring mechanism and the detection mechanism, when the automatic treatment device is used, lime is put into the treatment tank through a lime feeding opening, then a driving motor in a motor box is started, and the driving motor drives a stirring rod at the bottom to stir the lime and the wastewater in the treatment tank; the lime and wastewater mixed solution rapidly reacts to generate calcium fluoride precipitates, the fluorine ion concentration in the wastewater can be clearly observed in cooperation with the fluorine ion electrode and the display screen installed on the lower surface of the treatment tank, the wastewater is discharged after the wastewater reaches the discharge standard subsequently, automatic operation is adopted for wastewater treatment, and the wastewater treatment efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fluorine-containing wastewater treatment devices, and particularly relates to an automatic treatment device for fluorine-containing wastewater. Background Art

[0002] In the production process of the electronics industry (such as products like semiconductors, panels, and photovoltaics), due to the use of raw materials such as hydrofluoric acid and ammonium fluoride in pickling operations and wet etching processes, wastewater containing fluoride ions will be generated. The amount of fluorine-containing wastewater increases significantly every year. If not properly treated, it will cause great harm to the environment, soil, and human health.

[0003] Currently, most treatment equipment for fluorine-containing wastewater separates the dosing system, chemical reaction tank, and sedimentation tank. This not only occupies a large area, has a high equipment cost, but also has a low degree of automation and low work efficiency. Therefore, an automatic treatment device for fluorine-containing wastewater has been proposed.

[0004] An automatic treatment device for fluorine-containing wastewater disclosed in the patent with the publication number CN215712237U. Although this automatic treatment device for fluorine-containing wastewater not only saves the floor area of the equipment, reduces the equipment cost, but also has good defluorination effect and high work efficiency. It includes a chemical mixing system and a deep defluorination system. The chemical mixing system includes a dosing tank, a chemical mixing tank, and a filter press connected in sequence from top to bottom. The deep defluorination system includes a filtration tank, a deep defluorination tank, and a regenerant storage tank connected in sequence from top to bottom. The dosing tank includes at least three sub-dosing tanks, namely a pH dosing tank, a calcium salt dosing tank, and a flocculant dosing tank. The filtration tank is internally provided with at least three kinds of filtration media, namely multi-media filtration fillers, activated carbon filtration fillers, and security filtration fillers arranged in sequence. The side wall of the chemical mixing tank is provided with a first water inlet, and the chemical mixing tank is connected to the filtration tank through a pipeline. The side wall of the deep defluorination tank is provided with a second water outlet.

[0005] Although the above patent achieves an integrated structure by setting up the chemical mixing system and the deep defluorination system, integrating the dosing tank, the chemical mixing tank, and the filter press respectively, and integrating the filtration tank, the deep defluorination tank, and the regenerant storage tank, reducing the floor area and cost of the equipment and improving the work efficiency of the equipment. At the same time, the fluorine-containing wastewater in the chemical mixing tank is adjusted in pH, defluorinated for the first time, and precipitated through the dosing tank, then separated by sedimentation through the filter press, and then filtered through the filtration tank and defluorinated for the second time through the deep defluorination tank, which can ensure the defluorination effect of the fluorine-containing wastewater. At the same time, the regenerant storage tank can clean the deep defluorination tank to further ensure the defluorination effect. However, this device lacks a fluorine resource recovery mechanism to extract fluoride ions from the wastewater and convert them into reusable raw materials, thereby reducing the raw material cost and reducing resource waste.

[0006] Therefore, it is very necessary to invent an automatic treatment device for fluorine-containing wastewater to solve the above problems. Utility Model Content

[0007] (1) Technical problem to be solved

[0008] The technical problem solved by the utility model is to provide an automatic treatment device for fluorine-containing wastewater with high practicability, simple operation and relatively simple structure, which solves the problems of automatically treating fluorine wastewater and recycling fluorine resources mentioned in the above background technology.

[0009] (2) Technical solution

[0010] To achieve the above object, the utility model is realized through the following technical solutions: an automatic treatment device for fluorine-containing wastewater, including a treatment tank, the upper surface of the treatment tank is fixedly connected with a wastewater inlet, the top of the treatment tank is fixedly connected with a motor box, the inside of the motor box is fixedly connected with a stirring mechanism, the stirring mechanism includes a driving motor and a stirring rod, the lower surface of the treatment tank is provided with a detection mechanism, the detection mechanism includes a fluoride ion electrode, a controller and a display screen, the bottom of the treatment tank is fixedly connected with a base, and a moving mechanism is threadedly connected to the edge of one side of the top surface of the base, the moving mechanism includes a rotating motor and a lead screw, the surface of the lead screw is threadedly connected with a filter box, the surface of the filter box is provided with a clamping groove, and a filtering mechanism is inserted into the clamping groove, the filtering mechanism includes a filter screen and a handle.

[0011] As a further scheme of the utility model, the driving motor is fixedly connected to the inside of the motor box, the output end of the driving motor is fixedly connected with a stirring rod, and the stirring rod is convenient for the lime and the wastewater to be fully mixed.

[0012] As a further scheme of the utility model, the fluoride ion electrode is installed on the lower surface of the treatment tank, one side of the fluoride ion electrode is electrically connected with a controller through a power line, and one side of the controller is electrically connected with a display screen through a power line, and the display screen is convenient for observing the fluoride ion concentration.

[0013] As a further scheme of the utility model, the rotating motor is threadedly connected to the edge of one side of the top surface of the base, and one side of the rotating motor is fixedly connected with a lead screw, and the lead screw is convenient for driving the filter box to move.

[0014] As a further scheme of the utility model, the filter screen is inserted into the clamping groove, and two groups of handles are fixedly connected to the surface of the filter screen, and the handles are convenient for taking out the filter screen.

[0015] As a further scheme of the utility model, a drain port is fixedly connected to the inner bottom of the treatment tank, one side of the drain port is connected with a drainage pipe in a through manner, one side of the drainage pipe is connected with a pump body in a through manner, and the output end of the pump body is connected with a circulation pipe in a through manner, and the circulation pipe is located directly above the filter screen, and the pump body conveys the wastewater.

[0016] As a further solution of the present utility model, a lime feeding port is provided in the middle of the surface of the treatment tank, and a sealing door is hinged on the surface of the lime feeding port, and the sealing door is convenient for sealing.

[0017] (III) Beneficial effects

[0018] The present utility model provides an automatic treatment device for fluorine-containing wastewater, which has the following beneficial effects:

[0019] 1. For the automatic treatment device for fluorine-containing wastewater, through the setting of the stirring mechanism and the detection mechanism, when in use, lime is placed into the treatment tank through the lime feeding port, and then the driving motor inside the motor box is started. The driving motor drives the stirring rod at the bottom to stir the lime and the wastewater inside the treatment tank, so that the mixed solution of lime and wastewater reacts quickly to generate calcium fluoride precipitate. With the fluoride ion electrode and the display screen installed on the lower surface of the treatment tank, the fluoride ion concentration in the wastewater can be clearly observed, and then discharged after meeting the discharge standard. The wastewater treatment is carried out by automated operation, which improves the efficiency of wastewater treatment.

[0020] 2. For the automatic treatment device for fluorine-containing wastewater, through the setting of the moving mechanism and the filtering mechanism, when collecting calcium fluoride, the pump body is started to pump the treated wastewater out of the treatment tank and into the filtering box. The filter screen arranged on the surface of the filtering box filters the calcium fluoride, and then the filter screen can be removed to store the calcium fluoride uniformly, which improves the utilization rate of fluorine resources. With the rotating motor and the lead screw on one side of the filtering box, the filtering box can move reciprocally on the base, so that the calcium fluoride filtered on the surface of the filter screen can be evenly distributed, avoiding the accumulation of calcium fluoride in one place and bringing inconvenience to the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0022] Figure 2 It is a schematic diagram of the moving mechanism structure of the present utility model;

[0023] Figure 3 It is a schematic diagram of the stirring mechanism structure of the present utility model;

[0024] Figure 4 It is a schematic diagram of the filtering mechanism structure of the present utility model.

[0025] In the figure: 1, treatment tank; 2, waste water outlet; 3, motor box; 4, stirring mechanism; 401, driving motor; 402, stirring rod; 5, detection mechanism; 501, fluoride ion electrode; 502, controller; 503, display screen; 6, base; 7, moving mechanism; 701, rotating motor; 702, lead screw; 8, filter box; 9, filtering mechanism; 901, filter screen; 902, handle; 10, drain outlet; 11, drainage pipe; 12, pump body; 13, circulation pipe; 14, lime feeding port; 15, sealing door. Specific implementation mode

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] Please refer to Figures 1 to 4 , the present invention provides a technical solution: an automatic treatment device for fluorine-containing wastewater, including a treatment tank 1, a waste water outlet 2 is fixedly connected to the upper surface of the treatment tank 1, a motor box 3 is fixedly connected to the top of the treatment tank 1, a stirring mechanism 4 is fixedly connected inside the motor box 3. Through the settings of the stirring mechanism 4 and the detection mechanism 5, the wastewater treatment is carried out by means of automated operation, improving the efficiency of wastewater treatment. The stirring mechanism 4 includes a driving motor 401 and a stirring rod 402. A detection mechanism 5 is installed on the lower surface of the treatment tank 1. The detection mechanism 5 includes a fluoride ion electrode 501, a controller 502 and a display screen 503. A base 6 is fixedly connected to the bottom of the treatment tank 1. A moving mechanism 7 is threadedly connected to the edge of one side of the top surface of the base 6. Through the settings of the moving mechanism 7 and the filtering mechanism 9, the calcium fluoride is prevented from accumulating in one place, which brings inconvenience to the staff. The moving mechanism 7 includes a rotating motor 701 and a lead screw 702. A filter box 8 is threadedly connected to the surface of the lead screw 702. A card slot is opened on the surface of the filter box 8, and a filtering mechanism 9 is inserted into the inside of the card slot. The filtering mechanism 9 includes a filter screen 901 and a handle 902;

[0028] Please refer to Figure 3 , the driving motor 401 is fixedly connected inside the motor box 3, and the output end of the driving motor 401 is fixedly connected with a stirring rod 402, which is convenient for the lime and the wastewater to be fully mixed;

[0029] Please refer to Figure 3 , the fluoride ion electrode 501 is installed on the lower surface of the treatment tank 1. One side of the fluoride ion electrode 501 is electrically connected to a controller 502 through a power line, and one side of the controller 502 is electrically connected to a display screen 503 through a power line. The display screen 503 is convenient for observing the fluoride ion concentration;

[0030] Please refer toFigure 2 , the rotating motor 701 is threadedly connected to the edge of one side of the top surface of the base 6, and a lead screw 702 is fixedly connected to one side of the rotating motor 701. The lead screw 702 facilitates driving the filter box 8 to move;

[0031] Please refer to Figure 4 , the filter screen 901 is inserted into the inside of the card slot, and two groups of handles 902 are fixedly connected to the surface of the filter screen 901. The handles 902 facilitate taking out the filter screen 901;

[0032] Please refer to Figure 1 , a drain port 10 is fixedly connected to the inner bottom of the treatment tank 1, a drainage pipe 11 is connected through one side of the drain port 10, a pump body 12 is connected through one side of the drainage pipe 11, and an output end of the pump body 12 is connected through a circulation pipe 13. The circulation pipe 13 is located directly above the filter screen 901, and the pump body 12 transports the wastewater;

[0033] Please refer to Figure 3 , a lime feeding port 14 is opened in the middle of the surface of the treatment tank 1, and a sealing door 15 is hinged to the surface of the lime feeding port 14. The sealing door 15 facilitates sealing.

[0034] In the present utility model, the working steps of the device are as follows:

[0035] The first step: When in use, lime is placed into the treatment tank 1 through the lime feeding port 14, and then the driving motor 401 inside the motor box 3 is started. The driving motor 401 drives the stirring rod 402 at the bottom to stir the lime and the wastewater inside the treatment tank 1, so that the mixed solution of lime and wastewater quickly reacts to generate calcium fluoride precipitate. With the fluoride ion electrode 501 and the display screen 503 installed on the lower surface of the treatment tank 1, the fluoride ion concentration in the wastewater can be clearly observed, and then it can be discharged after reaching the discharge standard;

[0036] The second step: When collecting calcium fluoride, the pump body 12 is started to pump the treated wastewater out of the treatment tank 1 and into the filter box 8. The filter screen 901 arranged on the surface of the filter box 8 filters the calcium fluoride. Subsequently, the filter screen 901 can be removed to uniformly store the calcium fluoride, improving the utilization rate of fluorine resources. With the rotating motor 701 and the lead screw 702 on one side of the filter box 8, the filter box 8 can reciprocate on the base 6, so that the calcium fluoride filtered on the surface of the filter screen 901 can be evenly distributed.

[0037] It should be noted that the device structure and drawings of the present utility model mainly describe the principle of the present utility model. Based on the technical principle of this design, the settings of the power mechanism, power supply system, control system, etc. of the device are not fully described. However, on the premise that those skilled in the art understand the principle of the above-mentioned utility model, the specific details of its power mechanism, power supply system, and control system can be clearly obtained. The control method of the application document is automatically controlled by a controller, and the control circuit of the controller can be realized by simple programming by those skilled in the art;

[0038] The standard parts used therein can all be purchased from the market, and can also be customized according to the description in the specification and drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, welding, etc. that are mature in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art, and for the components known to those skilled in the art, their structures and principles can all be known by those skilled in the art through technical manuals or obtained through conventional experimental methods.

[0039] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An automatic treatment device for fluorine-containing wastewater, comprising a treatment tank (1), characterized in that: The upper surface of the treatment tank (1) is fixedly connected to a wastewater outlet (2); the top of the treatment tank (1) is fixedly connected to a motor box (3); the interior of the motor box (3) is fixedly connected to a stirring mechanism (4); the stirring mechanism (4) comprises a driving motor (401) and a stirring rod (402); the lower surface of the treatment tank (1) is provided with a detection mechanism (5); the detection mechanism (5) comprises a fluoride ion electrode (501), a controller (502) and a display screen (503); the bottom of the treatment tank (1) is fixedly connected to a base (6); the edge of one side of the top surface of the base (6) is threadedly connected to a moving mechanism (7); the moving mechanism (7) comprises a rotating motor (701) and a screw rod (702); the surface of the screw rod (702) is threadedly connected to a filter box (8); the surface of the filter box (8) is provided with a slot; the inside of the slot is plugged with a filter mechanism (9); the filter mechanism (9) comprises a filter screen (901) and a handle (902).

2. The automatic treatment device for fluorine-containing wastewater according to claim 1, characterized in that: The driving motor (401) is fixedly connected to the inside of the motor box (3), and the output end of the driving motor (401) is fixedly connected to a stirring rod (402).

3. The automatic treatment device for fluorine-containing wastewater according to claim 1, characterized in that: The fluoride ion electrode (501) is installed on the lower surface of the processing tank (1), one side of the fluoride ion electrode (501) is electrically connected to the controller (502) via a power line, and one side of the controller (502) is electrically connected to the display screen (503) via a power line.

4. The automatic treatment device for fluorine-containing wastewater according to claim 1, characterized in that: The rotating motor (701) is threadedly connected to an edge of one side of the top surface of the base (6), and a screw rod (702) is fixedly connected to one side of the rotating motor (701).

5. The automatic treatment device for fluorine-containing wastewater according to claim 1, characterized in that: The filter net (901) is inserted into the interior of the card slot, and two groups of handles (902) are fixedly connected to the surface of the filter net (901).

6. The automatic treatment device for fluorine-containing wastewater according to claim 1, characterized in that: A drain outlet (10) is fixedly connected to the inner bottom of the treatment tank (1), a drainage pipe (11) is connected through one side of the drain outlet (10), a pump body (12) is connected through one side of the drainage pipe (11), and a flow pipe (13) is connected through the output end of the pump body (12), and the flow pipe (13) is located directly above the filter screen (901).

7. The automatic treatment device for fluorine-containing wastewater according to claim 1, characterized in that: A lime feeding port (14) is provided in the middle of the surface of the treatment tank (1), and a sealing door (15) is hingedly connected to the surface of the lime feeding port (14).

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