Heavy metal wastewater treatment device

Abstract

The utility model relates to the technical field of wastewater treatment, in particular to a heavy metal wastewater treatment device which comprises a treatment tank, the treatment tank assembly comprises a tank body, a tank cover and a tank bottom are assembled at the top and the bottom of the tank body respectively, an assembling shaft is assembled at the top of the tank cover in an inserted mode, an assembling sleeve is assembled on the upper portion of the assembling shaft through a bearing, an upper inserting groove corresponding to the assembling shaft is formed in the top of the tank cover, and a servo motor is assembled on the upper portion of the assembling sleeve. A filter screen is inserted in the side edge of the lower portion of the treatment tank, a maintenance cover frame is assembled on the side edge of the filter screen, corresponding deslagging windows are formed in the two sides of the lower portion of the treatment tank, side baffles and side pressing plates are plugged on the side edges of the deslagging windows, and door lock hasps and door lock buckle tongues are correspondingly assembled on the side edge of the outer wall of the treatment tank and the side walls of the side pressing plates. The chemical precipitation device is convenient to disassemble and separate after heavy metals are removed by chemical precipitation, and is convenient for subsequently cleaning precipitates and the machine body, so that the operation and the use are more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, in particular to a treatment device for heavy metal wastewater. Background Technique

[0002] With the rapid development of industry, the discharge of heavy metal wastewater has become a serious environmental problem. Heavy metal wastewater usually comes from industries such as mining, metallurgy, electroplating, and chemical engineering, and contains toxic heavy metal ions such as mercury, cadmium, lead, chromium, and nickel. Heavy metal wastewater treatment methods include chemical precipitation method, ion exchange method, membrane separation method, etc. When performing chemical precipitation treatment, relevant chemical reagents are added according to the characteristics of heavy metals, and flocculent precipitates are generated after mixing and reaction to remove heavy metal substances in the wastewater;

[0003] In this regard, Chinese Patent Application No.: CN202320724740.4 discloses a heavy metal wastewater treatment device. The heavy metal wastewater treatment device includes: a sewage storage tank, and an inlet is opened at the top of the sewage storage tank; a treatment tank, the treatment tank is fixedly installed on the top of the sewage storage tank, and the treatment tank is correspondingly arranged with the inlet; a rotating shaft, the rotating shaft is rotatably installed on the inner wall of the top of the treatment tank, and the top end of the rotating shaft extends to the outside of the treatment tank; a plurality of stirring plates, and a plurality of the stirring plates are fixedly installed on the rotating shaft; a first motor, the first motor is fixedly installed on the top of the treatment tank, and the output shaft of the first motor is fixedly connected with the top end of the rotating shaft;

[0004] However, the existing wastewater treatment device is inconvenient to disassemble and clean when removing heavy metals by chemical precipitation, which affects the subsequent use efficiency;

[0005] Therefore, in order to solve the above problems, a treatment device for heavy metal wastewater is proposed. Summary of the Invention

[0006] The purpose of the utility model is to provide a treatment device for heavy metal wastewater to solve the problem that the existing wastewater treatment device is inconvenient to disassemble and clean when removing heavy metals by chemical precipitation, which affects the subsequent use efficiency as mentioned in the above background technique.

[0007] To achieve the above purpose, the utility model provides the following technical solution: A treatment device for heavy metal wastewater, including a treatment tank, a stirring shaft is assembled inside the treatment tank, and stirring frames are assembled staggered on the side of the stirring shaft. An electric control valve is assembled at the bottom of the treatment tank, and a liquid discharge pipe is assembled at the outlet section of the electric control valve;

[0008] The treatment tank assembly includes a tank body, with a tank cover and a tank bottom respectively assembled at the top and bottom of the tank body. The lower end of the tank bottom is docked with the inlet of an electric actuator valve. On both sides of the tank cover, liquid injection nozzles are symmetrically assembled. At the top of the tank cover, an assembly shaft is inserted and assembled. The upper part of the assembly shaft is assembled with a fitting set through a bearing. At the top of the tank cover, an upper slot corresponding to the assembly shaft is assembled. On the upper part of the fitting set, a servo motor is assembled. A filter screen is inserted on the lower side of the treatment tank. A maintenance cover frame is assembled on the side of the filter screen. On both sides of the lower part of the treatment tank, corresponding slag discharge windows are opened. The side of the slag discharge window is blocked by a side baffle and a side pressing plate. A door lock buckle and a door lock tongue are respectively assembled on the side wall of the outer wall of the treatment tank and the side wall of the side pressing plate.

[0009] As a further improvement of this solution, a handle is assembled on the side wall of the maintenance cover frame. A sealing pad is adhesively attached to the inner wall of the side baffle. Through grooves corresponding to the handle are opened inside the side pressing plate and the side baffle. As a further improvement of this solution, a lower support ring is supported on the peripheral side at the bottom of the filter screen, and the lower support ring is fixed at the lower part of the inner bottom wall of the tank body.

[0010] As a further improvement of this solution, an upper snap ring is integrally provided at the top end of the assembly shaft. A corresponding upper plug is fixed at the rotating shaft end of the servo motor, and the cross section of the upper plug is hexagonal.

[0011] As a further improvement of this solution, a lower plug is integrally provided at the bottom end of the assembly shaft, and the cross section of the lower plug is square. A lower slot corresponding to the lower plug is opened at the top end of the stirring shaft. After the lower plug is inserted into the lower slot, it is assembled and fixed with the side wall of the upper end of the stirring shaft through screws.

[0012] As a further improvement of this solution, an assembly plate is supported and assembled on the side of the tank bottom. A support rod is supported at the bottom of the assembly plate. A support plate is assembled at the bottom of the support rod. Movable wheels are assembled at the four corners of the bottom of the support plate. Studs are threadedly inserted in the middle of the four sides of the support plate.

[0013] As a further improvement of this solution, a support foot is assembled and fixed at the bottom of the stud. An insertion cone is arranged below the support foot. An installation ring is fixed at the top of the insertion cone, and the installation ring and the support foot are assembled and fixed through bolts.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: The present utility model is convenient for disassembling and separating after chemical precipitation to remove heavy metals, facilitating subsequent cleaning of the precipitate and the machine body, making the operation and use more convenient;

[0015] The utility model is provided with a filter screen. With the opening of the slag discharge window, it is convenient to open and close the door lock buckle and the door lock tongue, so that the side pressing plate and the side baffle are convenient to place and take out, and thus it is convenient to extract the filter screen and the maintenance cover frame for receiving and filtering waste water, making the subsequent use more convenient. It is also convenient to take out and pour the sediment after sedimentation and filtration, making the use more convenient. Through this design, the convenience and practicality of the heavy metal waste water treatment device are improved.

[0016] The utility model is provided with an assembly shaft. With the setting of the upper slot, it is convenient to drive the stirring shaft and the stirring frame to rotate and stir through the assembly and docking of the assembly sleeve and the servo motor, and it is also convenient to disassemble and separate, making the cleaning operation more convenient and avoiding residue sticking to the surface of the equipment. Through this design, the convenience and practicality of the heavy metal waste water treatment device are improved. Brief Description of the Drawings

[0017] Figure 1 It is a side view sectional three-dimensional schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a front view three-dimensional schematic diagram of the overall structure of the utility model;

[0019] Figure 3 It is a front view assembly explosion three-dimensional schematic diagram of the structure of the utility model;

[0020] Figure 4 It is a side view assembly three-dimensional schematic diagram of the partial structure of the support plate of the utility model;

[0021] Figure 5 It is a side view three-dimensional schematic diagram of the partial structure of the door lock buckle of the utility model;

[0022] In the figure: 100, treatment tank; 101, tank body; 102, tank cover; 103, tank bottom; 104, liquid injection pipe orifice; 105, upper slot; 106, slag discharge window; 110, stirring shaft; 111, stirring frame; 120, electric actuator; 130, drain pipe; 140, assembly plate; 141, support rod; 142, support plate; 143, moving wheel; 144, stud; 145, support leg; 146, plug cone; 147, mounting ring; 200, filter screen; 201, lower support ring; 210, maintenance cover frame; 211, handle; 212, through slot; 220, side baffle; 221, sealing gasket; 230, side pressing plate; 240, door lock buckle; 241, door lock tongue; 300, assembly shaft; 301, upper retaining ring; 302, upper plug; 303, lower plug; 304, lower slot; 310, assembly sleeve; 320, servo motor. Detailed Embodiment

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figures 1-5 , an embodiment provided by the utility model:

[0025] The heavy metal wastewater treatment device comprises a treatment tank 100, wherein a stirring shaft 110 is installed inside the treatment tank 100, and stirring racks 111 are staggeredly installed on the side of the stirring shaft 110, an electric actuator valve 120 is installed at the bottom of the treatment tank 100, and a discharge pipe 130 is installed at the outlet section of the electric actuator valve 120;

[0026] The processing tank 100 comprises a tank body 101, the top and bottom of the tank body 101 are respectively equipped with a tank cover 102 and a tank bottom 103, and the lower end of the tank bottom 103 is connected to the inlet of the electric actuator 120, and the tank cover 102 is symmetrically equipped with injection nozzles 104 on both sides, and the top of the tank cover 102 is equipped with an assembly shaft 300, and the upper part of the assembly shaft 300 is equipped with an assembly sleeve 310 through a bearing, and the top of the tank cover 102 is equipped with an upper The slot 105, the upper part of the assembly set 310 is equipped with a servo motor 320, the lower side of the processing tank 100 is inserted with a filter screen 200, the side of the filter screen 200 is equipped with a maintenance cover frame 210, and the two sides of the lower part of the processing tank 100 are provided with corresponding slag discharge windows 106, the sides of the slag discharge windows 106 are blocked with side baffles 220 and side pressure plates 230, and the side walls of the outer wall of the processing tank 100 and the side walls of the side pressure plates 230 are correspondingly equipped with door lock buckles 240 and door lock buckle tongues 241;

[0027] As a more detailed description of this embodiment, the side wall of the maintenance cover frame 210 is equipped with a handle 211, the inner wall of the side baffle 220 is glued with a sealing gasket 221, and the side pressure plate 230 and the side baffle 220 are provided with a through groove 212 corresponding to the handle 211. Through this design, it is easy to pull and pull out the maintenance cover frame 210 and the filter 200, making it more convenient to use;

[0028] As a more detailed example of this embodiment, the filter screen 200 is supported by a lower support ring 201 on the sides around the bottom, and the lower support ring 201 is fixed to the lower part of the bottom wall of the tank body 101. Through this design, it is convenient to provide auxiliary support after the maintenance cover frame 210 and the filter screen 200 are placed inside, so that it is easy to place stably and make it more convenient to use.

[0029] More specifically in this embodiment, an upper snap ring 301 is integrally provided at the top end of the assembly shaft 300, and an upper plug 302 corresponding to the upper snap ring 301 is fixed to the rotating shaft end of the servo motor 320. The cross-section of the upper plug 302 is hexagonal. With this design, it is convenient for the assembly and docking of the assembly shaft 300 and the servo motor 320, and it is also convenient for subsequent disassembly.

[0030] More specifically in this embodiment, a lower plug 303 is integrally provided at the bottom end of the assembly shaft 300. The cross-section of the lower plug 303 is square. A lower slot 304 corresponding to the lower plug 303 is provided at the top end of the stirring shaft 110. After the lower plug 303 is inserted into the lower slot 304, it is assembled and fixed to the upper side wall of the stirring shaft 110 by screws. With this design, it is convenient to disassemble and separate the stirring shaft 110 and the assembly shaft 300, convenient for assembly during use, and also convenient for disassembly during cleaning.

[0031] More specifically in this embodiment, an assembly plate 140 is supported and assembled on the side of the tank bottom 103. A support rod 141 is supported at the bottom of the assembly plate 140. A support plate 142 is assembled at the bottom of the support rod 141. Movable wheels 143 are assembled at the four corners of the bottom of the support plate 142. Studs 144 are threadedly inserted in the middle of the four sides of the support plate 142. With this design, it is convenient for the support and assembly of the treatment tank 100, and it is also convenient for the movement and stable limit placement of the treatment tank 100.

[0032] More specifically in this embodiment, a support foot 145 is assembled and fixed at the bottom of the stud 144. An insertion cone 146 is provided below the support foot 145. An installation ring 147 is fixed at the top of the insertion cone 146. The installation ring 147 and the support foot 145 are assembled and fixed by bolts. With this design, it is convenient to perform combined assembly and placement limit according to the placement position requirements.

[0033] Working principle: When in assembly and use, the tank body 101, the tank cover 102 and the tank bottom 103 are assembled by bolts to form the treatment tank 100. Subsequently, with the cooperation of the electric actuator 120 and the drain pipe 130, it is convenient to dock with the conveying pipeline. Then, through the support of the assembly plate 140, the support rod 141 and the support plate 142 for the treatment tank 100, it is convenient to move through the moving wheels 143. By screwing the stud 144, it is convenient to limit and support the support plate 142. When supporting, the assembly support feet 145 and the insertion cones 146 are selected according to different ground materials. On the cement ground, it is supported by the support feet 145. On the muddy ground, through the installation ring 147 and the cooperation of bolts, it is assembled with the support feet 145, so that the insertion cones 146 are convenient to press and insert into the muddy ground, facilitating subsequent stable limit support and making the use more convenient and stable; The waste water pipeline and the corresponding chemical reagent pipeline are respectively docked with the two injection nozzles 104, which is convenient to pour waste liquid and chemical reagents into the treatment tank 100. Subsequently, driven by the servo motor 320, the stirring shaft 110 and the stirring frame 111 are driven to stir the inside thereof for mixing. Further, after sufficient stirring and mixing and reaction, by opening the electric actuator 120, the treated waste water is discharged through the drain pipe 130, and the flocculent precipitate containing heavy metals is filtered by the filter screen 200 and the maintenance cover frame 210 for collection. Subsequently, by opening the door lock tongue 241 and the door lock buckle 240, it is convenient to remove the side pressing plate 230 and the side baffle 220, and it is convenient to pull out the maintenance cover frame 210 and the filter screen 200 for treatment and cleaning. At the same time, with the setting of the upper retaining ring 301 and the upper plug 302, the servo motor 320, the mounting sleeve 310 and the mounting shaft 300 can be disassembled and separated. Through the cooperation of the lower slot 304 and the lower plug 303, it is convenient to disassemble and separate the mounting shaft 300 from the stirring shaft 110. At the same time, the tank body 101, the tank cover 102 and the tank bottom 103 can also be separated and disassembled, facilitating subsequent thorough cleaning and avoiding residue. The operation ends here.

[0034] The above is only the preferred embodiment of the present invention, and it does not impose any form of limitation on the present invention; Any ordinary technical personnel in the industry can smoothly implement the present invention as shown in the accompanying drawings of the specification and the above description; However, any slight changes, modifications and equivalent changes made by those skilled in the art within the scope of the technical solution of the present invention by using the technical content disclosed above are all equivalent embodiments of the present invention; At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A heavy metal wastewater treatment device, comprising a treatment tank (100), wherein a stirring shaft (110) is installed inside the treatment tank (100), and stirring racks (111) are staggeredly installed on the sides of the stirring shaft (110), an electric actuator valve (120) is installed at the bottom of the treatment tank (100), and a discharge pipe (130) is installed at the outlet section of the electric actuator valve (120); Features: The processing tank (100) comprises a tank body (101), the top and bottom of the tank body (101) are respectively equipped with a tank cover (102) and a tank bottom (103), and the lower end of the tank bottom (103) is connected to the inlet of the electric actuator valve (120), and the tank cover (102) is symmetrically equipped with liquid injection nozzles (104) on both sides, and the top of the tank cover (102) is equipped with an assembly shaft (300) inserted and assembled, and the upper part of the assembly shaft (300) is equipped with an assembly sleeve (310) through a bearing, and the top of the tank cover (102) is equipped with an upper slot corresponding to the assembly shaft (300). (105), a servo motor (320) is installed on the upper part of the assembly set (310), a filter screen (200) is inserted on the side of the lower part of the processing tank (100), and a maintenance cover frame (210) is installed on the side of the filter screen (200), and corresponding slag discharge windows (106) are opened on both sides of the lower part of the processing tank (100), and the sides of the slag discharge windows (106) are blocked with side baffles (220) and side pressure plates (230), and the side walls of the outer wall of the processing tank (100) and the side walls of the side pressure plates (230) are correspondingly equipped with door lock buckles (240) and door lock buckle tongues (241).

2. The heavy metal wastewater treatment device according to claim 1, characterized in that: The side wall of the maintenance cover frame (210) is equipped with a handle (211), the inner wall of the side baffle (220) is glued with a sealing gasket (221), and the side pressure plate (230) and the side baffle (220) are provided with a through slot (212) corresponding to the handle (211).

3. The heavy metal wastewater treatment device according to claim 1, characterized in that: The bottom of the filter screen (200) is supported by a lower support ring (201) on the sides thereof, and the lower support ring (201) is fixed to the lower part of the inner bottom wall of the tank body (101).

4. The heavy metal wastewater treatment device according to claim 1, characterized in that: An upper clamping ring (301) is integrally provided at the top end of the assembly shaft (300), and an upper plug (302) corresponding to the upper clamping ring (301) is fixed to the rotating shaft end of the servo motor (320), and the cross section of the upper plug (302) is hexagonal.

5. The heavy metal wastewater treatment device according to claim 1, characterized in that: A lower plug (303) is integrally provided at the bottom end of the assembly shaft (300), and the cross section of the lower plug (303) is square; a lower slot (304) corresponding to the lower plug (303) is provided at the top end of the stirring shaft (110), and the lower plug (303) is inserted into the lower slot (304) and assembled and fixed to the upper end side wall of the stirring shaft (110) by means of screws.

6. The heavy metal wastewater treatment device according to claim 1, characterized in that: The side support of the tank bottom (103) is equipped with an assembly plate (140), the bottom of the assembly plate (140) is supported by a support rod (141), the bottom of the support rod (141) is equipped with a support plate (142), the corners around the bottom of the support plate (142) are equipped with moving wheels (143), and the middle parts of the four sides of the support plate (142) are threadedly inserted with studs (144).

7. The heavy metal wastewater treatment device according to claim 6, characterized in that: A support foot (145) is assembled and fixed at the bottom of the stud (144), an insert cone (146) is provided below the support foot (145), and a mounting ring (147) is fixed at the top of the insert cone (146), and the mounting ring (147) and the support foot (145) are assembled and fixed by bolts.

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