Spiral blade type feeding well of settling tank

Abstract

The utility model discloses a spiral blade type feeding well of a settling tank, which relates to the technical field of settling tanks and comprises a feeding pipe, a feeding chute, a propulsion pump, a clear liquid pipe, a chute baffle, a central cylinder, a spiral blade, a triangular prism baffle and a dispersion cone, the feeding pipe is vertically inserted into the feeding chute, the clear liquid pipe is obliquely inserted into the side wall of the feeding chute, and the chute baffle is arranged in the central cylinder. The propelling pump is placed above the clear liquid pipe, the chute baffle is arranged on the side wall of the feeding chute, the feeding chute is tangentially inserted into the side wall of the center cylinder, the spiral blades are evenly distributed in the middle of the center cylinder, the triangular prism baffle is arranged on the side wall of the center cylinder, and the dispersing cone is arranged at an outlet in the bottom of the center cylinder. According to the spiral blade type feeding well of the settling tank, solid-phase substances sequentially flow through the feeding chute, the spiral blade and the dispersion cone, and the deposition and dispersion states of the solid-phase substances are remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sedimentation tanks, in particular to a spiral blade type feed well for a sedimentation tank. Background Art

[0002] As an efficient device for solid-liquid separation based on the gravity principle, the sedimentation tank is widely favored in many industrial fields such as mining, metallurgy, water treatment, chemical industry, and food processing due to its economical operating cost and continuous and stable working characteristics. The feed well is a core component of the sedimentation tank. The slurry and the flocculant go through the processes of mixing, adsorption, and flocculation, and finally form larger flocs and enter the sedimentation area of the sedimentation tank. However, with the decline in ore quality and the increase in sedimentation difficulty, the processing capacity of the sedimentation tank has encountered a bottleneck. Content of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the utility model provides a spiral blade type feed well for a sedimentation tank. Its core objective is to improve the uniform distribution state of the slurry inside the sedimentation tank, aiming to achieve the dissipation of the kinetic energy of the feed slurry, ensure that the flocculated slurry can be evenly distributed to the sedimentation area, so as to achieve the best sedimentation effect and improve the processing capacity of the sedimentation tank.

[0004] To achieve the above objectives, the utility model is realized through the following technical solutions: A spiral blade type feed well for a sedimentation tank, comprising: a feed pipe, a feed chute, a propulsion pump, a clear liquid pipe, a chute baffle, a central cylinder, spiral blades, a triangular prism baffle, and a dispersion cone;

[0005] The feed pipe is vertically inserted at the position of the feed chute to ensure that the feed slurry flows along the direction of the feed chute;

[0006] The clear liquid pipe is obliquely inserted into the side wall of the feed chute to push the diluted slurry into the feed chute;

[0007] The propulsion pump is arranged above the clear liquid pipe and is concentrically arranged with the clear liquid pipe;

[0008] The chute baffle is arranged on the side wall of the feed chute;

[0009] The outer shape of the central cylinder is cylindrical;

[0010] The side wall of the feed chute is tangentially connected to the central cylinder, so that the feed slurry flows along the wall surface of the central cylinder;

[0011] The spiral blades are arranged inside the central cylinder and are concentrically arranged with the central cylinder. The outer side of the spiral blades is connected to the inner wall of the central cylinder;

[0012] The triangular prism baffle is arranged above the spiral blades, and the triangular prism baffle is connected to the inner wall of the central cylinder;

[0013] The dispersion cone is arranged at the bottom outlet of the central cylinder.

[0014] Optionally, it is characterized in that the clear liquid pipe is obliquely inserted into the side wall of the feed chute, and the included angle between the clear liquid pipe and the side wall of the feed chute is 10°-60°.

[0015] Optionally, the propulsion pump is arranged above the clear liquid pipe. For the feed slurry with different feed parameters, the propulsion pump can be frequency-variable speed-regulated.

[0016] Optionally, the chute baffle is arranged on the side wall of the feed chute, and the number of the chute baffles is 2-30, and is perpendicular to the side wall of the feed chute.

[0017] Optionally, the feed chute has a certain slope, and the side wall of the feed chute is tangentially connected to the central cylinder, so that the feed slurry flows along the wall surface of the central cylinder.

[0018] Optionally, the spiral blades are arranged in the central cylinder, and the number of the spiral blades can be set to 2-50, and the inclination angle gradually increases.

[0019] Optionally, the triangular prism baffles are arranged above the spiral blades, and the number can be set to 2-50.

[0020] Optionally, the included angle between the conical surface of the dispersion cone plate and the horizontal direction is 10°-80°.

[0021] Beneficial effects:

[0022] The utility model provides a sedimentation tank spiral blade type feed well, which has the following beneficial effects:

[0023] 1. A clear liquid pipe and a propulsion pump are arranged at the feed position, and the rotation speed of the propulsion pump can be adjusted according to the feed slurry with different feed parameters to propel clear liquid with different flow rates, so that the solid content of the feed slurry is always kept within the range suitable for sedimentation;

[0024] 2. The feed chute has a certain slope, and a plurality of chute baffles are arranged at the outlet of the feed chute, so that after the feed slurry is mixed with the clear liquid propelled by the propulsion pump, it can enter the central cylinder of the sedimentation tank;

[0025] 3. A plurality of spiral blades are arranged in the central cylinder, and there are a plurality of holes on the spiral blades, which can reduce the existence of slurry short-circuit flow and effectively improve the dispersion condition of the feed slurry;

[0026] 4. At the bottom outlet position of the feed well, a dispersion cone plate is configured, and the dispersion cone evenly distributes the flocculated slurry to the sedimentation tank, reducing the disturbance to the sedimentation area of the sedimentation tank. Description of the drawings

[0027] Figure 1 Schematic diagram of the overall structure of the settling tank spiral vane type feed well provided by the present utility model;

[0028] Figure 2 Top view of the structure of the settling tank spiral vane type feed well provided by the present utility model;

[0029] Figure 3 Axonometric view of the overall structure of the settling tank spiral vane type feed well provided by the present utility model.

[0030] In the figure: 1, feed pipe; 2, feed chute; 3, propulsion pump; 4, clear liquid pipe; 5, chute baffle; 6, central cylinder; 7, spiral vane; 8, triangular prism baffle; 9, dispersion cone. Specific embodiments

[0031] Next, the technical solutions in the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0032] Please refer to Figures 1-3 , the present utility model provides a settling tank spiral vane type feed well, including a feed pipe 1, a feed chute 2, a propulsion pump 3, a clear liquid pipe 4, a chute baffle 5, a central cylinder 6, a spiral vane 7, a triangular prism baffle 8, and a dispersion cone 9.

[0033] The feed pipe 1 is vertically inserted at the feed chute 2, the clear liquid pipe 4 is obliquely inserted into the side wall of the feed chute 2, the propulsion pump 3 is placed above the clear liquid pipe 4, the chute baffle 5 is arranged at the end of the feed chute 2, the feed chute 2 is tangentially inserted into the side wall of the central cylinder 6, a plurality of spiral vanes 7 are evenly arranged in the middle of the central cylinder 6, the triangular prism baffle 8 is arranged on the side wall of the central cylinder 6, and a dispersion cone 9 is arranged at the bottom outlet of the central cylinder 6.

[0034] Specifically, the slurry enters the feed chute 2 from the feed pipe 1, the propulsion pump 3 pushes the clear liquid in the settling tank to enter the feed chute 2 from the clear liquid pipe 4, the pushed clear liquid is basically parallel to the direction of the feed slurry, the feed chute 2 has a certain slope, the feed slurry drives the clear liquid to flow forward at an accelerated speed, a plurality of chute baffles 5 are arranged in the feed chute 2, and the clear liquid and the feed slurry are fully deflected and mixed in the feed chute 2 and then enter the central cylinder 6.

[0035] Furthermore, the slurry mixed in the feed chute 2 enters the central cylinder 6 in the tangential direction. The mixed slurry moves in a circular motion along the spiral blade 7 in the central cylinder 6. As the angle of the spiral blade 7 gradually increases, the flow rate of the slurry gradually slows down, and the kinetic energy gradually dissipates. A part of the slurry with a slower speed flows out from the holes of the spiral blade 7, and another part of the slurry with a faster speed flows to the next spiral blade 7 until the kinetic energy is completely dissipated and flows out. A plurality of triangular prism baffles 8 are arranged on the side wall of the central cylinder 6 to change the flow direction of the mixed slurry, promoting the mixing effect on the one hand and slowing down the flow rate of the slurry on the other hand. Finally, the slurry uniformly flows into the sedimentation tank through the dispersion cone 9 plate.

[0036] With the sedimentation tank spiral blade type feed well of the present utility model, the slurry flows through the feed chute 2, the spiral blade 7, and the dispersion cone 9 in sequence, significantly improving the deposition and dispersion state of the solid-phase substances.

[0037] 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. A settling tank spiral vane type feed well, characterized in that, Comprising: A feed pipe (1), a feed chute (2), a propulsion pump (3), a clear liquid pipe (4), a chute baffle (5), a central cylinder (6), a spiral blade (7), a triangular prism baffle (8), and a dispersion cone (9); The feed pipe (1) is vertically inserted at the feed chute (2) to ensure that the feed slurry flows along the direction of the feed chute (2); The clear liquid pipe (4) is obliquely inserted into the side wall of the feed chute (2) to propel the diluted slurry into the feed chute (2), and the included angle between the clear liquid pipe (4) and the side wall of the feed chute (2) is 10° - 60°; The propulsion pump (3) is arranged above the clear liquid pipe (4) and is concentrically arranged with the clear liquid pipe (4). For the feed slurry with different feed parameters, the propulsion pump (3) can be frequency - adjusted; The chute baffle (5) is arranged on the side wall of the feed chute (2); The outer shape of the central cylinder (6) is cylindrical; The side wall of the feed chute (2) is tangentially connected to the central cylinder (6) to make the feed slurry flow along the wall surface of the central cylinder (6); The spiral blade (7) is arranged inside the central cylinder (6) and is concentrically arranged with the central cylinder (6). The outer side of the spiral blade (7) is connected to the inner wall of the central cylinder (6). There are multiple holes on the spiral blade (7), which can reduce the existence of short - circuit flow of the slurry and effectively improve the dispersion condition of the feed slurry; The triangular prism baffle (8) is arranged above the spiral blade (7), and the triangular prism baffle (8) is connected to the inner wall of the central cylinder (6); The dispersion cone (9) is arranged at the bottom outlet of the central cylinder (6).

2. The settling tank spiral vane type feed well according to claim 1, characterized in that, The chute baffle (5) is arranged on the side wall of the feed chute (2), and the number of the chute baffles (5) is 2 - 30, and is perpendicular to the side wall of the feed chute (2).

3. The settling tank spiral vane type feed well according to claim 1, characterized in that, The feed chute (2) has a certain slope, and the side wall of the feed chute (2) is tangentially connected to the central cylinder (6) to make the feed slurry flow along the wall surface of the central cylinder (6).

4. The settling tank spiral vane type feed well according to claim 1, characterized in that, The spiral blade (7) is arranged inside the central cylinder (6), and the number of the spiral blades (7) can be set to 2 - 50, and the inclination angle gradually increases.

5. The settling tank spiral vane type feed well according to claim 1, characterized in that, The triangular prism baffle (8) is arranged above the spiral blade (7), and the number can be set to 2 - 50.

6. The settling tank spiral vane type feed well according to claim 1, characterized in that, The angle between the conical surface of the dispersion cone (9) and the horizontal direction is 10° - 80°.

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