Mine tail mud solid-liquid separation device

Abstract

The utility model discloses a solid-liquid separation device for mine tail sludge, which comprises a sludge tank, a screening barrel which is rotatably mounted above the sludge tank and is used for screening the tail sludge, and a solid separation mechanism which is arranged in the screening barrel and is used for separating solids from the screening barrel, compared with the prior art, the solid-liquid separation device for the mine tail mud has the following beneficial effects that the efficient and continuous separation of muddy water and solids in the tail mud is realized through the arrangement of the screening barrel and the solid separation mechanism, and when the solid-liquid separation device is used, the screening barrel is inclined and rotates above a sludge tank, so that the separation efficiency is improved; mud water quickly flows into a sludge tank through the sieve holes, and solids are intercepted on the inner wall of the sieving cylinder. A separation push plate in the solid separation mechanism continuously pushes solids to a separation pipe along with rotation of the screening cylinder, and finally the solids enter the pipe through an opening in the side face of the separation pipe, so that effective separation and collection of the solids are achieved.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a solid-liquid separation device for mine tailings. Background Technology

[0002] Tailings disposal has always been a pressing problem in mining and processing. Tailings not only contain a large amount of water, but also fine ore particles, sludge, and other impurities, making solid-liquid separation of tailings particularly complex and challenging.

[0003] A search revealed a Chinese utility model patent with application number 202322040036.X, which describes a wastewater treatment device for solid-liquid separation of mineral sludge that is easy to clean. The device includes a sludge treatment tank with an inlet on the top surface. A transmission rod runs through both sides of the inner cavity of the sludge treatment tank. A motor is installed at one end of the transmission rod that protrudes from the sludge treatment tank. A fixing block is sleeved on the outer surface of the transmission rod. Four sets of fixing blocks are provided, and two sets of stirring blades are installed on the upper and lower surfaces of the fixing blocks. A filter baffle is provided below the stirring blades, and a filter box is provided on the top surface of the filter baffle.

[0004] Regarding the existing technology, the inventor believes that at least the following problems exist:

[0005] Mine tailings contain a large amount of fine ore and sludge, and simple filtration through filter plates can easily cause clogging.

[0006] In addition, the filter box needs to be frequently removed for cleaning during the separation process, which is inconvenient.

[0007] In view of this, this application proposes a solid-liquid separation device for mine tailings to solve the above problems. Utility Model Content

[0008] In view of the above situation and to overcome the defects of the prior art, this utility model provides a solid-liquid separation device for mine tailings to solve the above problems.

[0009] To achieve the above objectives, this utility model provides a solid-liquid separation device for mine tailings, comprising a sludge tank, a screening cylinder rotatably installed above the sludge tank for screening tailings, and a solid separation mechanism disposed inside the screening cylinder for separating solids from the screening cylinder. The screening cylinder is open at both ends and inclined above the sludge tank. The solid separation mechanism includes a separation pipe fixed to the sludge tank and inserted into the screening cylinder, an opening on the upper side of the separation pipe for allowing solids to enter, and several solid separation push plates fixed to the inner wall of the screening cylinder and in sliding contact with the side of the separation pipe.

[0010] Compared with existing technologies, this utility model has the following advantages: The mine tailings solid-liquid separation device of this utility model achieves efficient and continuous separation of mud and water from solids in tailings through the setup of a screening cylinder and a solids separation mechanism. During operation, the screening cylinder tilts and rotates above the sludge tank, causing the mud and water to quickly flow into the sludge tank through the screen holes, while the solids are trapped on the inner wall of the screening cylinder. The separation pusher plate in the solids separation mechanism continuously pushes the solids towards the separation tube as the screening cylinder rotates, ultimately allowing them to enter the tube through an opening on the side, thus achieving effective separation and collection of the solids. Simultaneously, the introduction of a washing mechanism enables automatic cleaning of the equipment. Water is sprayed onto the surface of the screening cylinder through a spray pipe, washing away small solids stuck in the screen holes, and then entering the separation tube through the opening for cleaning, further improving the separation efficiency and stability of the equipment. Attached Figure Description

[0011] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0013] Figure 2 This is a schematic diagram of the exploded structure of this utility model.

[0014] Figure 3 This is a schematic diagram of another three-dimensional structure of the present invention.

[0015] Figure 4 This is a schematic diagram of the sieving cylinder structure of this utility model. Detailed Implementation

[0016] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0017] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0019] The following is in conjunction with the appendix Figure 1-4 The specific embodiments of this utility model will be described in further detail.

[0020] Depend on Figure 1-4 This invention discloses a solid-liquid separation device for mine tailings, comprising a sludge tank 10, a screening cylinder 20 rotatably mounted above the sludge tank 10 for screening tailings, and a solid separation mechanism 30 disposed inside the screening cylinder 20 for separating solids from the screening cylinder 20. The screening cylinder 20 is open at both ends and inclined above the sludge tank 10, with the higher end of the screening cylinder 20 serving as the tailings inlet. In use, mine tailings are added through the inlet end of the screening cylinder 20, and the muddy water portion of the tailings enters the sludge tank 10 through the screen holes of the screening cylinder 20. The solids in the tailings are retained on the inner wall of the screening cylinder 20. The function of the solid separation mechanism 30 is to separate the solids from the screening cylinder 20, thereby preventing the screening cylinder 20 from clogging.

[0021] The following is a specific embodiment of the solid separation mechanism 30:

[0022] The solid separation mechanism 30 includes a separation pipe 31 fixed to the sludge tank 10 and inserted into the screening cylinder 20, an opening 32 on the upper side of the separation pipe 31 for allowing solids to enter, and several solid separation push plates 33 fixed to the inner wall of the screening cylinder 20 and in sliding contact with the side of the separation pipe 31. The separation pipe 31 is coaxially arranged with the screening cylinder 20. In use, the separation pipe 31 is fixed inside the screening cylinder 20, and the screening cylinder 20 rotates above the sludge tank 10. Mine tailings are added through the inlet end of the screening cylinder 20. It should be noted that the mine tailings should be added between the inner wall of the screening cylinder 20 and the outer wall of the separation pipe 31, and should not exceed the opening 32; otherwise, the mud and water will be mixed. The sludge will directly enter the separation pipe 31. After the tailings enter the screening cylinder 20, the mud and water will enter the sludge tank 10 through the screen holes, while the solids will remain in the screening cylinder 20. As the screening cylinder 20 rotates, the solids will move around the side wall of the separation pipe 31 under the pushing action of the separation pusher plate 33. When the solids move to the opening 32 on the upper side of the separation pipe 31, they will automatically fall into the separation pipe 33 under the action of gravity, thereby avoiding the accumulation of solids in the tailings on the bottom side of the screening cylinder 20 and causing the screen holes to be blocked. In addition, since the screening cylinder 20 is tilted and rotates continuously, some of the solids will also move against the lower end of the screening cylinder 20 under the action of gravity and be directly discharged through the lower end of the screening cylinder 20.

[0023] To better clean the screening cylinder 20, a washing mechanism 40 is installed above the sludge tank 10. The washing mechanism 40 includes a support frame 41 fixed to the sludge tank 10 and a spray pipe 42 fixed to the upper end of the support frame 41. During the rotation of the screening cylinder 20, water can be sprayed onto the surface of the screening cylinder 20 through the spray pipe 42, so that the solids stuck in the screen holes of the screening cylinder 20 can be washed down. At the same time, the washing mechanism 40 can also ensure that the separation push plate 33 and the separation pipe 31 maintain good sliding contact.

[0024] Furthermore, the inlet end of the separation tube 31 near the screening cylinder 20 is a closed structure, and a flushing pipe 34 is installed at one end of the separation tube 31 located in the closed structure. When solid matter accumulates on the bottom side of the separation tube 31, it can be flushed through the flushing pipe 34.

[0025] In some embodiments, a guide mechanism 50 is provided between the screening cylinder and the sludge tank 10. The guide mechanism 50 includes a support base 51 fixed to the sludge tank 10, a support groove 52 embedded in the support base 51, and a support ring 53 fixed to the screening cylinder 20 and rotatably connected to the support groove 52. The support groove 52 plays a role in guiding the rotation of the support ring 53. By setting the guide mechanism 50, the rotation of the screening cylinder 20 can be guided, thereby improving the stability of the screening cylinder 20 during rotation.

[0026] In some embodiments, the sludge tank 10 is equipped with a drive mechanism 60 for driving the screening cylinder 20 to rotate. The drive mechanism 60 includes a motor 61 fixed on the sludge tank 10, a gear 62 fixed on the output shaft of the motor 61, and a gear ring 63 fixed on the screening cylinder 20 and meshing with the gear 62. In use, when the external power supply of the motor 61 is turned on, the output shaft of the motor 61 drives the gear 62 to rotate. When the gear 62 rotates, it drives the gear ring 63 to rotate. When the gear ring 63 rotates, it drives the screening cylinder 20 to rotate.

[0027] In some embodiments, the sludge tank 10 is fixed with a sludge receiving hopper 70 at the outlet end of the screening cylinder 20. As described above, during solid-liquid separation, a portion of the solids in the tail sludge are discharged directly through the lower end of the screening cylinder 20, while another portion of the solids are pushed into the separation pipe 31 through the opening 32 by the separation push plate 33 when the screening cylinder 20 rotates. The function of the sludge receiving hopper 70 is to receive the solids discharged directly from the screening cylinder 20.

[0028] In some embodiments, the spray pipe 42 is connected to the sludge tank 10 via a water pump 43.

[0029] The working principle of this utility model's solid-liquid separation device for mine tailings is as follows:

[0030] When mine tailings are added through the inlet of the screening cylinder 20, the muddy water portion rapidly flows into the sludge tank 10 through the screen holes of the screening cylinder 20 under the action of gravity and centrifugal force, achieving preliminary solid-liquid separation. The solids are retained on the inner wall of the screening cylinder 20. As the screening cylinder 20 rotates, the separation pusher plate 33 begins to function. Using the force generated by rotation, the separation pusher plate 33 pushes the solids along the inner wall of the screening cylinder 20 towards the separation tube 31. During this process, the separation pusher plate 33 not only effectively prevents the accumulation of solids at the bottom of the screening cylinder 20 but also ensures that the solids can move to the opening 32 on the upper side of the separation tube 31. When the solids reach the opening 32, they automatically fall into the separation tube 31 under the action of gravity, thus achieving automatic cleaning of the solids. Furthermore, due to the inclined setting and continuous rotation of the screening cylinder 20, some solids are also discharged directly through the lower end of the screening cylinder 20 under the action of gravity, further improving the separation efficiency. To keep the screening cylinder 20 clean and prevent screen clogging, the device is also equipped with a rinsing mechanism 40. The rinsing mechanism 40 sprays water onto the surface of the screening cylinder 20 through the spray pipe 42, washing away small solid objects stuck in the screen holes, and then enters the separation tube 31 through the opening 32 to clean the separation tube 31. Simultaneously, the rinsing mechanism 40 also ensures good sliding contact between the separation push plate 33 and the separation tube 31, improving the working efficiency of the separation mechanism.

[0031] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A solid-liquid separation device for mine tailings, characterized in that, The system includes a sludge tank, a screening cylinder rotatably mounted above the sludge tank for screening tailings, and a solid separation mechanism disposed inside the screening cylinder for separating solids from the screening cylinder. The screening cylinder is open at both ends and is inclined above the sludge tank. The solid separation mechanism includes a separation pipe fixed to the sludge tank and inserted into the screening cylinder, an opening on the upper side of the separation pipe for allowing solids to enter, and several solid separation push plates fixed to the inner wall of the screening cylinder and in sliding contact with the side of the separation pipe.

2. The mine tailings solid-liquid separation device according to claim 1, characterized in that, A rinsing mechanism is installed above the sludge tank. The rinsing mechanism includes a support frame fixed to the sludge tank and a spray pipe fixed to the upper end of the support frame.

3. The mine tailings solid-liquid separation device according to claim 1, characterized in that, The inlet end of the separation tube near the screening cylinder is a closed structure, and a flushing pipe is installed at one end of the separation tube located in the closed structure.

4. The mine tailings solid-liquid separation device according to claim 1, characterized in that, A guiding mechanism is provided between the screening cylinder and the sludge tank. The guiding mechanism includes a support base fixed to the sludge tank, a support groove embedded in the support base, and a support ring fixed to the screening cylinder and rotatably connected to the support groove.

5. A solid-liquid separation device for mine tailings according to claim 4, characterized in that, The sludge tank is equipped with a drive mechanism that drives the screening cylinder to rotate. The drive mechanism includes a motor fixed on the sludge tank, a gear fixed on the output shaft of the motor, and a gear ring fixed on the screening cylinder and meshing with the gear.

6. A solid-liquid separation device for mine tailings according to claim 1, characterized in that, The sludge tank is located at the outlet end of the screening cylinder and is fixed with a sludge receiving hopper.

7. A solid-liquid separation device for mine tailings according to claim 2, characterized in that, The spray pipe is connected to the sludge tank via a water pump.

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