Treatment device for lead-zinc ore beneficiation wastewater

Abstract

The utility model relates to the technical field of beneficiation wastewater treatment, in particular to a lead zinc ore beneficiation wastewater treatment device which comprises a precipitation structure, a drainage structure and a stirring structure. The drainage structure is fixedly mounted on one side edge of the bottom of the precipitation tank; the stirring structure comprises a basic shaft, the basic shaft is rotatably mounted at a central shaft in the settling tank, a plurality of groups of stirring rods are annularly and fixedly mounted on the side surface of the basic shaft at equal angles, and stirring blades are hinged to the outer ends of each group of stirring rods. According to the utility model, after various impurity flocculated large-particle aggregates in the wastewater are precipitated for a period of time, each stirring blade is rotated, so that the edge of one side of each stirring blade is propped against the inner wall of the precipitation tank to scrape and discharge sediments at the inner bottom of the precipitation tank, and a stirring structure is additionally arranged in a container in the precipitation step in the traditional process to accelerate the mixing of a coagulant and the wastewater; meanwhile, the sediment discharge work is realized by utilizing the mechanical structure of the stirring structure, so that the working efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of mineral processing wastewater treatment technology, specifically a treatment device for lead-zinc ore beneficiation wastewater. Background Technology

[0002] In the typical lead-zinc ore beneficiation process, large amounts of reagents such as lime, sodium carbonate, zinc sulfate, copper sulfate, xanthates, and black reagents are added. The resulting lead-zinc ore beneficiation wastewater has a complex composition, characterized by high pH, ​​high Ca2+ (calcium ions), high COD (chemical oxygen demand), high suspended solids, and heavy metal ions. Direct discharge would cause serious pollution to the soil and water environment. Therefore, lead-zinc ore beneficiation wastewater needs to be treated before being discharged.

[0003] While there are various treatment methods available today, most of them involve sedimentation and decontamination as the initial step. This involves adding flocculants to wastewater in a sedimentation tank and allowing it to stand for a long time to allow large particles of impurities to flocculate and settle to the bottom of the tank. Then the wastewater is discharged, and the sediment is cleaned up before proceeding to the next step. The entire process is extremely time-consuming and inefficient. Utility Model Content

[0004] The purpose of this invention is to provide a treatment device for lead-zinc ore beneficiation wastewater to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A treatment device for lead-zinc ore beneficiation wastewater, comprising:

[0007] A precipitation structure, wherein the precipitation structure includes a precipitation tank;

[0008] A drainage structure is fixedly installed on one side edge of the bottom of the sedimentation tank;

[0009] The stirring structure includes a base shaft, which is rotatably mounted on the central axis inside the sedimentation tank. Several sets of stirring rods are fixedly installed in a ring at equal angles on the side surface of the base shaft, and each set of stirring rods has a stirring blade hinged to its outer end.

[0010] Furthermore, the precipitate structure also includes:

[0011] A drive motor is fixedly installed in the middle of one side of the sedimentation tank, and the output end of the drive motor is fixedly connected to one end of the base shaft;

[0012] A conductive slip ring is rotatably sleeved on the middle of one side of the settling tank, and the conductive slip ring is rotatably sleeved on one end of the base shaft;

[0013] A connecting bearing is rotatably sleeved on the middle of the other side of the settling tank, and the connecting bearing is rotatably sleeved on the other end of the base shaft;

[0014] A reagent addition port is fixedly installed on one side surface of the sedimentation tank and is in communication with the inside of the sedimentation tank.

[0015] A sealed bearing is rotatably fitted onto the pharmaceutical addition port and the sedimentation tank connection port.

[0016] Furthermore, the precipitate structure also includes:

[0017] Wastewater inlet, which is fixedly installed on one edge of the upper surface of the sedimentation tank;

[0018] A drain outlet is provided on the front surface of the sedimentation tank.

[0019] A sealing plate, the bottom side of which is hinged to the lower edge of the drain outlet.

[0020] Furthermore, the drainage structure includes:

[0021] A sealing and storage sleeve is fixedly installed on one side edge of the bottom of the sedimentation tank;

[0022] The compensating plug is slidably engaged inside the plug storage sleeve, with one end of the compensating plug protruding into the sedimentation tank and conforming to the curvature of the inner wall of the sedimentation tank.

[0023] The first electric push rod is fixedly installed at the front end of the sealing plug storage sleeve, and the output end of the first electric push rod is fixedly connected to the compensation sealing plug.

[0024] The drain outlet is fixedly installed on the bottom rear end of the sealing and storage sleeve.

[0025] Furthermore, the base shaft and stirring rod are provided with a drug inlet channel, one end of which is connected to the drug addition port through a sealed bearing, and a drug outlet is provided on the side surface of the stirring rod, which is connected to the drug inlet channel.

[0026] Furthermore, the base shaft side surface is hinged to the lower end of the second electric push rod, and the output end of the second electric push rod is hinged to one side edge of the stirring blade.

[0027] Compared with the prior art, the beneficial effects of this utility model are:

[0028] 1. The base shaft drives the stirring rod and stirring blades to rotate and stir, accelerating the mixing of coagulant and wastewater. This flocculates various impurities in the wastewater into large particles. The stirring structure pauses to allow sedimentation. After a period of sedimentation, the stirring blades are rotated so that one edge of the stirring blade touches the inner wall of the sedimentation tank. The stirring blades continue to rotate to scrape off and remove the sediment at the bottom of the sedimentation tank. Finally, the drainage structure is opened to discharge the wastewater that has undergone the flocculation and sedimentation process, allowing it to proceed to the next treatment step. By adding a stirring structure to the sedimentation container in the traditional process, the mixing of coagulant and wastewater is accelerated, improving flocculation and sedimentation efficiency. At the same time, the mechanical structure of the stirring structure itself is used to discharge the sediment, greatly improving work efficiency.

[0029] 2. When adding coagulant, introduce the coagulant into the chemical inlet channel through the chemical addition port. The centrifugal force generated by the rotation of the stirring rod will throw the coagulant out of the chemical outlet and mix it into the wastewater. The addition and stirring are carried out simultaneously, and the addition position is continuously changed to improve the mixing effect. After sedimentation, the retraction of the No. 2 electric push rod pulls the stirring blades, and the angle of the stirring blades is adjusted with the hinge point of the stirring rod as the axis of rotation. This makes the stirring blades abut against the inner wall of the sedimentation tank. The stirring blades are supported by thin metal plates and have a certain elastic deformation capacity. A raised groove can be added to the edge of the discharge port so that the stirring blades will vibrate when passing through the raised groove, which helps to push out the sediment and shake off the sediment adhering to the surface of the stirring blades. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0031] Figure 2 This is a schematic diagram of the precipitation structure in this utility model;

[0032] Figure 3 This is a schematic diagram of the drainage structure in this utility model;

[0033] Figure 4 This is a schematic diagram of the stirring structure in this utility model;

[0034] Figure 5 This is a schematic diagram of the stirring structure in this utility model.

[0035] In the diagram: 1. Sedimentation structure; 101. Sedimentation tank; 102. Drive motor; 103. Conductive slip ring; 104. Connecting bearing; 105. Sealed bearing; 106. Reagent addition port; 107. Wastewater inlet; 108. Sewage outlet; 109. Sealing plate; 2. Drainage structure; 201. Sealing and storage sleeve; 202. Compensating sealing plug; 203. Electric push rod No. 1; 204. Drainage outlet; 3. Stirring structure; 301. Base shaft; 302. Stirring rod; 303. Reagent inlet channel; 304. Reagent outlet; 305. Stirring blades; 306. Electric push rod No. 2. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] Please see Figure 1-5 In this embodiment of the present invention, a treatment device for lead-zinc ore beneficiation wastewater includes a sedimentation structure 1, a drainage structure 2, and a stirring structure 3. The sedimentation structure 1 includes a sedimentation tank 101; the drainage structure 2 is fixedly installed on one side edge of the bottom of the sedimentation tank 101; the stirring structure 3 includes a base shaft 301, which is rotatably installed at the central axis inside the sedimentation tank 101. Several sets of stirring rods 302 are fixedly installed in a ring at equal angles on the side surface of the base shaft 301, and each set of stirring rods 302 has a stirring blade 305 hinged to its outer end.

[0038] Specifically, wastewater from lead-zinc ore beneficiation is injected into sedimentation tank 101, and coagulant is added. The base shaft 301 drives the stirring rod 302 and stirring blades 305 to rotate and stir, accelerating the mixing of coagulant and wastewater. This flocculates various impurities in the wastewater into large particles. The stirring structure 3 pauses its operation to wait for sedimentation. After sedimentation for a period of time, the stirring blades 305 are rotated so that one edge of the stirring blades 305 abuts against the inner wall of sedimentation tank 101. The stirring blades 305 continue to rotate to scrape off and remove the sediment at the bottom of sedimentation tank 101. Finally, the drainage structure 2 is opened to discharge the wastewater that has undergone the flocculation and sedimentation process for the next treatment step. By adding the stirring structure 3 to the sedimentation container in the traditional process, the mixing of coagulant and wastewater is accelerated, improving the flocculation and sedimentation efficiency. At the same time, the mechanical structure of the stirring structure 3 itself is used to discharge the sediment, greatly improving the work efficiency.

[0039] Example 1

[0040] like Figure 1 , 2As shown in Figure 4, in this embodiment, the sedimentation structure 1 further includes a drive motor 102, a conductive slip ring 103, a connecting bearing 104, a sealing bearing 105, a reagent addition port 106, a wastewater inlet 107, a sewage outlet 108, and a sealing plate 109. The drive motor 102 is fixedly installed in the middle of one side of the sedimentation tank 101, and the output end of the drive motor 102 is fixedly connected to one end of the base shaft 301. The conductive slip ring 103 is rotatably sleeved in the middle of one side of the sedimentation tank 101, and the conductive slip ring 103 is rotatably sleeved to one end of the base shaft 301. The connecting bearing 105... 4. A rotating sleeve is fitted onto the middle of the other side of the sedimentation tank 101, and a connecting bearing 104 is rotatably fitted onto the other end of the base shaft 301; a reagent addition port 106 is fixedly installed on one side surface of the sedimentation tank 101 and is interconnected with the interior of the sedimentation tank 101; a sealing bearing 105 is rotatably fitted onto the reagent addition port 106 and the connection port of the sedimentation tank 101; a wastewater inlet 107 is fixedly installed on one side edge of the upper surface of the sedimentation tank 101; a sewage outlet 108 is opened on the front surface of the sedimentation tank 101; the bottom side of the sealing plate 109 is hinged to the lower edge of the sewage outlet 108.

[0041] In this embodiment, mineral processing wastewater is introduced into the sedimentation tank 101 through the wastewater inlet 107. Coagulant is added into the sedimentation tank 101 through the reagent addition port 106. The base shaft 301 is rotated by the drive motor 102 to carry out stirring and mixing. After sedimentation, the impurities deposited at the bottom of the sedimentation tank 101 are scraped and pushed to the sewage outlet 108 by the stirring blades 305 to discharge the sediment.

[0042] like Figure 3 As shown, in this embodiment, the drainage structure 2 includes a sealing and receiving sleeve 201, a compensating sealing plug 202, a first electric push rod 203, and a drain outlet 204. The sealing and receiving sleeve 201 is fixedly installed on one side edge of the bottom of the sedimentation tank 101; the compensating sealing plug 202 is slidably engaged inside the sealing and receiving sleeve 201, with one end of the compensating sealing plug 202 protruding into the sedimentation tank 101 and conforming to the curvature of the inner wall of the sedimentation tank 101; the first electric push rod 203 is fixedly installed at the front end of the sealing and receiving sleeve 201, and the output end of the first electric push rod 203 is fixedly connected to the compensating sealing plug 202; the drain outlet 204 is fixedly installed on the bottom rear end of the sealing and receiving sleeve 201.

[0043] In practice, after the sediment in the sedimentation tank 101 has been relatively drained, the compensation plug 202 is retracted into the plug storage sleeve 201 by the first electric push rod 203, and the drain port 204 is opened to drain water. The arc surface of one end of the compensation plug 202, which is consistent with the arc of the inner wall of the sedimentation tank 101, blocks the internal connection of the drain port 204, compensating for the depression there. This allows the sediment adhering to the arc surface to be directly scraped off by the stirring blades 305, preventing the sediment from entering the drain port 204 and affecting the cleaning effect.

[0044] Example 2

[0045] Based on Example 1, in order to supplement the specific method of controlling the rotation of the stirring blade 305 against the inner wall of the sedimentation tank 101, which was not mentioned in Example 1.

[0046] like Figure 2 , 4 As shown in Figure 5, in this embodiment, a medicine inlet channel 303 is provided inside the base shaft 301 and the stirring rod 302. One end of the medicine inlet channel 303 is connected to the medicine addition port 106 through a sealed bearing 105. A medicine outlet 304 is provided on the side surface of the stirring rod 302, and the medicine outlet 304 is connected to the medicine inlet channel 303. The side surface of the base shaft 301 is hinged to the lower end of the second electric push rod 306, and the output end of the second electric push rod 306 is hinged to one side edge of the stirring blade 305.

[0047] In practice, when adding coagulant, the coagulant is introduced into the chemical inlet channel 303 through the chemical addition port 106. The centrifugal force generated by the rotation of the stirring rod 302 throws the chemical out from the chemical outlet 304 and mixes it into the wastewater. The addition and stirring are carried out simultaneously, and the addition position is continuously changed to improve the mixing effect. After sedimentation, the retraction of the second electric push rod 306 pulls the stirring blade 305 to adjust the angle of the stirring blade 305 with the hinge point with the stirring rod 302 as the rotation axis, so that the stirring blade 305 abuts against the inner wall of the sedimentation tank 101. The stirring blade 305 is supported by a thin metal plate and has a certain elastic deformation capacity. A protrusion can be added to the edge of the discharge port 108 so that the stirring blade 305 vibrates when passing through the protrusion, which helps to push out the sediment and shake off the sediment adhering to the surface of the stirring blade 305.

[0048] In this invention, to prevent mineral processing wastewater from corroding the overall equipment, all structural surfaces inside the settling tank 101 are coated with a hydrophobic coating. This provides a certain degree of corrosion resistance and increases the difficulty of sedimentation adhering to the internal structural surfaces, thus preventing the formation of stubborn stains.

[0049] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0050] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A treatment device for lead-zinc ore beneficiation wastewater, characterized in that, include: A precipitation structure (1) is provided, which includes a precipitation tank (101). Drainage structure (2), which is fixedly installed on one side edge of the bottom of sedimentation tank (101); The stirring structure (3) includes a base shaft (301), which is rotatably installed on the central shaft inside the sedimentation tank (101). Several sets of stirring rods (302) are fixedly installed on the side surface of the base shaft (301) in a ring at equal angles. Each set of stirring rods (302) has a stirring blade (305) hinged to its outer end.

2. The wastewater treatment device for lead-zinc ore beneficiation according to claim 1, characterized in that, The precipitate structure (1) also includes: A drive motor (102) is fixedly installed in the middle of one side of the sedimentation tank (101), and the output end of the drive motor (102) is fixedly connected to one end of the base shaft (301); A conductive slip ring (103) is rotatably sleeved on the middle of one side of the sedimentation tank (101), and the conductive slip ring (103) is rotatably sleeved on one end of the base shaft (301); A connecting bearing (104) is rotatably sleeved on the middle of the other side of the settling tank (101), and the connecting bearing (104) is rotatably sleeved on the other end of the base shaft (301); A drug addition port (106) is fixedly installed on one side surface of the sedimentation tank (101) and is in communication with the interior of the sedimentation tank (101); A sealed bearing (105) is rotatably sleeved at the connection port between the drug addition port (106) and the sedimentation tank (101).

3. The treatment apparatus for lead-zinc ore beneficiation wastewater according to claim 1 or 2, characterized in that, The precipitate structure (1) also includes: Wastewater inlet (107) is fixedly installed on one edge of the upper surface of sedimentation tank (101); A drain outlet (108) is provided on the front surface of the sedimentation tank (101); A sealing plate (109) is hinged to the lower edge of the drain outlet (108) on its bottom side.

4. The wastewater treatment device for lead-zinc ore beneficiation according to claim 1, characterized in that, The drainage structure (2) includes: A sealing and storage sleeve (201) is fixedly installed on one side edge of the bottom of the sedimentation tank (101); Compensation plug (202) is slidably engaged inside the plug storage sleeve (201). One end of the compensation plug (202) extends into the sedimentation tank (101) and matches the curvature of the inner wall of the sedimentation tank (101). Electric push rod (203) No. 1 is fixedly installed at the front end of the sealing plug storage sleeve (201), and the output end of the electric push rod (203) is fixedly connected to the compensation sealing plug (202); Drainage outlet (204) is fixedly installed on the bottom rear end of the sealing and storage sleeve (201).

5. The wastewater treatment device for lead-zinc ore beneficiation according to claim 1, characterized in that, The base shaft (301) and the stirring rod (302) have a drug inlet channel (303) inside. One end of the drug inlet channel (303) is open and connected to the drug addition port (106) through a sealed bearing (105). The side surface of the stirring rod (302) has a drug outlet (304) that is connected to the drug inlet channel (303).

6. The treatment apparatus for lead-zinc ore beneficiation wastewater according to claim 1 or 5, characterized in that, The side surface of the base shaft (301) is hinged to the lower end of the second electric push rod (306), and the output end of the second electric push rod (306) is hinged to one side edge of the stirring blade (305).

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