Strong-basicity mercury waste liquid treatment device

Abstract

The utility model relates to the technical field of wastewater treatment, in particular to a strong-basicity mercury waste liquid treatment device. According to the technical scheme, the device comprises a sedimentation tank, a tank body, a box body and a sealing cover, the bottom end of the inner wall of the sedimentation tank is designed to be of a slope, a connecting pipe is arranged at the high position of the slope, the box body is communicated with the connecting pipe, a screen frame is inserted into the box body, activated carbon is filled in the screen frame, the tank body is arranged on the upper portion of the sedimentation tank, and the sealing cover is arranged on the tank body. And a stirring rod is rotationally arranged in the tank body. Through cooperation of the structures, in the sewage treatment process, it is ensured that reactants and wastewater are thoroughly mixed, secondary treatment is conducted on the wastewater in the settling pond, settled waste is convenient to clean, a tail end adsorption treatment structure is arranged, and the purposes of thoroughly treating the wastewater and improving the treatment efficiency are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, in particular to a device for treating strongly alkaline mercury waste liquid. Background Art

[0002] The highly alkaline mercury waste liquid generated by various institutions needs to be treated before discharge.

[0003] However, during use, the existing strongly alkaline mercury waste liquid treatment device does not mix the reactants and wastewater thoroughly, is not convenient for cleaning the precipitated waste, and does not have a terminal treatment structure, resulting in incomplete wastewater treatment and low efficiency.

[0004] To this end, we propose a strong alkaline mercury waste liquid treatment device to solve the existing problems. Utility Model Content

[0005] The utility model aims to provide a strong alkaline mercury waste liquid treatment device in view of the problems existing in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a strong alkaline mercury waste liquid treatment device, comprising a sedimentation tank, a tank body and a box body, the bottom end of the inner wall of the sedimentation tank is designed as an inclined surface, a connecting pipe is provided at the high part of the inclined surface, the box body and the connecting pipe are interconnected, a mesh frame is inserted into the interior of the box body, the interior of the mesh frame is filled with activated carbon, a tank body is provided on the upper part of the sedimentation tank, and a stirring rod is rotatably provided inside the tank body.

[0007] Preferably, a cover is installed on the upper surface of the tank body, a stirring rod is rotatably installed at the center position of the lower surface of the cover, a chassis is installed on the upper surface of the cover, a motor is arranged in the chassis, and the output end of the motor is connected to the shaft end of the stirring rod.

[0008] Preferably, a feed inlet is provided on the cover, and there are four feed inlets in total, and the four feed inlets are distributed in a ring array on the cover.

[0009] Preferably, the outer wall of the tank body is symmetrically mounted with supporting feet by means of bolts, and the bottom ends of the supporting feet are fixed to the outer walls on both sides of the sedimentation tank by means of bolts.

[0010] Preferably, a sewage outlet is provided at the lowest point of the slope of the sedimentation tank, and a baffle is installed on the outer opening end of the sewage outlet through bolts, a sealing gasket is glued on the baffle, and the sealing gasket is in contact with the outer wall of the sedimentation tank.

[0011] Preferably, a socket is provided on the upper surface of the box, the screen frame is movably plugged into the socket, and the bottom surface and two side surfaces of the screen frame are in contact with the interior of the box, and a cover plate is installed at the top opening of the screen frame by bolts;

[0012] A drainage port is provided on a side of the box body away from the connecting pipe.

[0013] Preferably, flow control valve structures are installed at the bottom opening of the connecting pipe and the tank body.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] During use, the utility model of the strong alkaline mercury waste liquid treatment device can introduce the strong alkaline mercury waste liquid to be treated into the tank body, and then add an appropriate amount of reaction reagent through the feed port according to the amount of introduced waste water, and at this time control the stirring rod to rotate, so that the reagent and waste water in the tank body are fully mixed;

[0016] Then, the bottom opening of the tank is opened to allow the mixed wastewater mixture to enter the sedimentation tank for sedimentation. During this process, a secondary agent can be added to the sedimentation tank to accelerate the sedimentation phenomenon;

[0017] After the sedimentation is completed, open the connecting pipe, and the wastewater in the pool enters the box through the connecting pipe. The treated wastewater is adsorbed and filtered by the activated carbon inside the mesh frame, and then discharged from the drain port on the other side of the box.

[0018] When the water level in the pool drops below the connecting pipe, the baffle on the other side of the sedimentation tank can be opened, and then the sediment in the pool can be cleaned with tools, and the sediment is discharged through the sewage outlet;

[0019] The utility model ensures that the reactant and wastewater are mixed thoroughly during the sewage treatment process and that the wastewater is subjected to secondary treatment in a sedimentation tank, and that the precipitated waste is easily cleaned. The utility model has a terminal adsorption treatment structure, so as to achieve the purpose of thorough wastewater treatment and improved treatment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0021] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the cross-sectional structure of the tank body of the utility model;

[0023] Figure 4 It is a schematic diagram of the cross-sectional structure of the box body of the present utility model.

[0024] Reference numerals:

[0025] 1. Sedimentation tank; 2. Tank body; 3. Box body; 4. Cover plate; 5. Connecting pipe; 6. Sealing cap; 7. Support foot; 8. Stirring rod; 9. Chassis; 10. Feed inlet; 11. Screen frame. DETAILED DESCRIPTION

[0026] 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.

[0027] Embodiment 1

[0028] like Figure 1-Figure 4 As shown, the utility model proposes a strong alkaline mercury waste liquid treatment device, comprising a sedimentation tank 1, a tank body 2 and a box body 3. The bottom end of the inner wall of the sedimentation tank 1 is designed as an inclined surface, and a connecting pipe 5 is provided at the high part of the inclined surface. The box body 3 and the connecting pipe 5 are interconnected. A mesh frame 11 is inserted into the interior of the box body 3, and the interior of the mesh frame 11 is filled with activated carbon. The upper part of the sedimentation tank 1 is provided with a tank body 2, and a stirring rod 8 is rotatably provided inside the tank body 2.

[0029] Based on Example 1:

[0030] During use, the strong alkaline mercury waste liquid treatment device of the utility model can introduce the strong alkaline mercury waste liquid to be treated into the tank body 2, and then add an appropriate amount of reaction reagent through the feed port 10 according to the amount of introduced wastewater (add lime milk and excessive sodium sulfide to the wastewater, and the sodium sulfide reacts with the mercury ions in the wastewater to generate insoluble mercury sulfide precipitation), and at this time, the stirring rod 8 is controlled to rotate, so that the reagent in the tank body 2 and the wastewater are fully mixed;

[0031] Then, the bottom opening of the tank body 2 is opened, so that the mixed wastewater mixture enters the sedimentation tank 1 for sedimentation. During this process, a secondary agent can be added to the sedimentation tank 1 to accelerate the precipitation phenomenon (the particle size of the mercuric sulfide precipitation is very fine, and most of it is suspended in the water. In order to accelerate the precipitation of mercuric sulfide and remove the excess sulfur ions in the wastewater at the same time, ferrous sulfate is appropriately added to generate iron sulfide and ferrous hydroxide precipitation);

[0032] After the sedimentation is completed, the connecting pipe 5 is opened, and the wastewater in the pool enters the box 3 through the connecting pipe 5. The treated wastewater is adsorbed and filtered by the activated carbon inside the mesh frame 11, and then discharged from the drain port on the other side of the box 3;

[0033] When the water level in the tank drops below the connecting pipe 5, the baffle on the other side of the sedimentation tank 1 can be opened, and then tools are used to clean the sediment in the tank, and the sediment is discharged through the sewage outlet.

[0034] Embodiment 2

[0035] like Figure 1-Figure 4As shown, the strong alkaline mercury waste liquid treatment device proposed by the utility model, compared with the first embodiment, this embodiment further includes: a sealing cover 6 is installed on the upper surface of the tank body 2;

[0036] A stirring rod 8 is rotatably mounted at the center of the lower surface of the cover 6, and a chassis 9 is mounted on the upper surface of the cover 6. A motor is arranged in the chassis 9, and the output end of the motor is connected to the shaft end of the stirring rod 8. Through the cooperation of the above structure, the motor drives the stirring rod 8 to rotate.

[0037] The outer wall of the tank body 2 is symmetrically mounted with support legs 7 by means of bolts, and the bottom ends of the support legs 7 are fixed to the outer walls of both sides of the sedimentation tank 1 by means of bolts. The installation position of the tank body 2 is limited by the design of the support legs 7.

[0038] A sewage outlet is provided at the lowest point of the inclined surface of the sedimentation tank 1. A baffle is installed on the outer open end of the sewage outlet through bolts. A sealing gasket is glued on the baffle. The sealing gasket is in contact with the outer wall of the sedimentation tank 1. Through the cooperation of the above structure, the baffle on the other side of the sedimentation tank 1 is opened, and the sediment is discharged through the sewage outlet.

[0039] There are four feed ports 10 on the cover 6, and the four feed ports 10 are distributed in a circular array on the cover 6. The strong alkaline mercury waste liquid to be treated can be introduced into the tank body 2, and then an appropriate amount of reaction reagent can be added through the feed port 10 according to the amount of waste water introduced.

[0040] A socket is provided on the upper surface of the box body 3, and the screen frame 11 is movably plugged into the socket, and the bottom surface and two side surfaces of the screen frame 11 are in contact with the interior of the box body 3, and a cover plate 4 is installed at the top opening of the screen frame 11 by bolts. A drain port is provided on the side of the box body 3 facing away from the connecting pipe 5, and the wastewater in the pool enters the box body 3 through the connecting pipe 5. The treated wastewater is adsorbed and filtered by the activated carbon inside the screen frame 11, and then discharged from the drain port on the other side of the box body 3.

[0041] A flow control valve structure is installed at the bottom opening of the connecting pipe 5 and the tank body 2, and the on-off state of the above structure can be controlled by the valve structure.

[0042] It should be noted that the flow control valve and motor structure are existing mature technologies, and their working principles and internal structures are known to technicians in the relevant technical field. The utility model only utilizes their functions and does not improve their internal structure. Therefore, they are not described in detail here, and technicians in this field can make any optional adjustments according to their needs or convenience.

[0043] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

[0044] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A strongly alkaline mercury waste liquid treatment device, comprising a sedimentation tank (1), a tank body (2) and a box body (3), characterized in that: The bottom end of the inner wall of the sedimentation tank (1) is designed to be an inclined surface, a connecting pipe (5) is provided at the top of the inclined surface, the box body (3) and the connecting pipe (5) are interconnected, a mesh frame (11) is inserted into the interior of the box body (3), the interior of the mesh frame (11) is filled with activated carbon, a tank body (2) is provided at the top of the sedimentation tank (1), and a stirring rod (8) is rotatably provided inside the tank body (2).

2. A strong alkaline mercury waste liquid treatment device according to claim 1, characterized in that: A cover (6) is mounted on the upper surface of the tank body (2), a stirring rod (8) is rotatably mounted at the center of the lower surface of the cover (6), a chassis (9) is mounted on the upper surface of the cover (6), a motor is arranged in the chassis (9), and the output end of the motor is connected to the shaft end of the stirring rod (8).

3. A strong alkaline mercury waste liquid treatment device according to claim 2, characterized in that: The sealing cover (6) is provided with a feed inlet (10), there are four feed inlets (10) in total, and the four feed inlets (10) are distributed in a ring array on the sealing cover (6).

4. The device for treating a strong alkaline mercury waste liquid according to claim 1, characterized in that: A sewage outlet is provided at the lowest point of the inclined surface of the sedimentation tank (1), and a baffle is installed on the outer opening end of the sewage outlet through bolts. A sealing gasket is glued on the baffle, and the sealing gasket is in contact with the outer wall of the sedimentation tank (1).

5. A strong alkaline mercury waste liquid treatment device according to claim 2, characterized in that: The outer wall of the tank body (2) is symmetrically mounted with supporting feet (7) by means of bolts, and the bottom ends of the supporting feet (7) are fixed to the outer walls on both sides of the sedimentation tank (1) by means of bolts.

6. The device for treating a strong alkaline mercury waste liquid according to claim 1, characterized in that: The upper surface of the box body (3) is provided with a socket, the net frame (11) is movably plugged into the socket, and the bottom surface and two side surfaces of the net frame (11) are in contact with the interior of the box body (3), and a cover plate (4) is installed at the top opening of the net frame (11) by means of bolts, and a drainage outlet is provided on a side of the box body (3) that is away from the connecting pipe (5).

7. The device for treating a strong alkaline mercury waste liquid according to claim 1, characterized in that: The connecting pipe (5) and the bottom opening of the tank body (2) are both equipped with flow control valve structures.

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