CN210698947U - Central feeding well of efficient settling tank - Google Patents

Abstract

The utility model relates to a central feeding well of a high-efficiency settling tank, which can effectively solve the problem that when the feeding speed does not reach the rotational flow speed, the material directly rushes into the tank body, the utility model solves the problem that the formed solid-liquid separation interface in the tank body is damaged, and comprises a feed pipe, a material mixing pipe and a feed central well, wherein one end of the feed pipe is fixed on the tank wall, the other end is communicated with one end of the material mixing pipe, the material mixing pipe is fixed with a tank body truss through a pull rod, the material mixing pipe is communicated with a flocculating agent pipe on the upper part of the material mixing pipe, the other end of the material mixing pipe is connected with the feed central well, be provided with the induced cofferdam of arc buffering in the junction department of feed center shaft and material mixing tube, the utility model discloses can improve the sedimentation separation efficiency, reduce the consumption of flocculating agent, improve underflow solid content, improve the productivity, reduction in production cost is the innovation on the center feed well of high-efficient subsider.

Description

Central feeding well of efficient settling tank

Technical Field

The utility model relates to a be used for solid-liquid separation's high-efficient settling tank in the industry, especially a central feedwell of high-efficient settling tank.

Background

The settling tank is used in solid-liquid separation places in various industries, and the solid-liquid separation is realized by means of the action of the gravity of solid particles. The efficient settling tank is characterized in that a flocculating agent is continuously added in the settling separation process on the basis of gravity settling, and the flocculating agent and slurry are uniformly and fully mixed in a feeding system of the settling tank to form ore particle flocs so as to quickly settle and divide the slurry into a supernatant layer and a concentrated settled layer. The mud layer is discharged from the underflow port through the rotation of the rake, and the supernatant is discharged through the top overflow port.

The feed system in the settling tank is typically used to reduce the velocity of the fluid flowing into the slurry, so that the energy in the slurry can be dissipated to some extent before entering the tank, thereby reducing the damage of the newly entering slurry to the settled layer of solid particles in the tank. In other words, at high fluid velocities, the introduction of slurry directly into the body can create turbulence and impair the settling rate of the solid particles. Meanwhile, the feeding system device is also responsible for mixing and diluting the slurry and the clarifying solution, thereby accelerating the subsequent sedimentation process. It can be seen that the feeding system is of great importance in the high-efficiency settling tank, and it can be said that the mixing mode of the flocculating agent and the ore pulp and the development of the mixer represent the development level of the high-efficiency settling tank.

When the feeding speed of the existing feeding center well device cannot reach the rotational flow speed, materials directly rush into the tank body, and a solid-liquid separation interface formed in the tank body is damaged, so that improvement is urgently needed. Therefore, improvement of the feeding system of the high-efficiency settling tank is a problem which needs to be solved at present.

Disclosure of Invention

To the above situation, for solving prior art's defect, the utility model aims at providing a central feedwell of high-efficient subsider can effectively solve when feed rate can not reach swirl velocity, and the cell body is directly gone into to the material, causes the problem of destruction to the solid-liquid separation interface that has formed in the cell body, forms special fluid flow mode in the centerwell, is showing to reduce and gets into ground paste fluid velocity, improves the function and the mixing efficiency of centerwell.

The utility model provides a technical scheme be, including inlet pipe, material hybrid tube and feed center well, inlet pipe one end is fixed on the cell wall, and the other end is linked together with material hybrid tube one end, and the material hybrid tube is fixed through pull rod and cell body truss, and the material hybrid tube is linked together rather than the flocculating agent pipe on upper portion, and the material hybrid tube other end is connected with feed center well, is provided with the induced cofferdam of arc buffering in feed center well and material hybrid tube's junction department.

The utility model discloses an above-mentioned concrete design, can adjust the length and the width of the induced baffle of arc buffering according to concrete operating mode and realize the reduction of ground paste fluid speed and form special flow pattern, this novel subsider charge-in system device can improve the sedimentation separation efficiency, reduces the consumption of flocculating agent, improves the underflow solid content, improves the productivity, and reduction in production cost is the innovation on the central feedwell of high-efficient subsider.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a front view of fig. 1 according to the present invention.

Fig. 3 is a schematic perspective view of the present invention.

Detailed Description

The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings.

Given by fig. 1-3, the utility model discloses an inlet pipe, material hybrid tube and feed center, 1 one end of inlet pipe is fixed on cell wall 6, the other end is linked together with 2 one end of material hybrid tube, material hybrid tube 2 is fixed with cell body truss 8 through pull rod 7, material hybrid tube 2 is linked together rather than flocculating agent pipe 3 on upper portion, be responsible for the input flocculating agent, the 2 other ends of material hybrid tube are connected with feed center 4, the ground paste gets into inlet pipe 1 via last process, accomplish the mix and dilute back, get into the feed center, be provided with the induced cofferdam 5 of arc buffering in the department of being connected of feed center 4 and material hybrid tube 2, the ground paste consumes ground paste self energy through the induced cofferdam 5 of arc buffering, reduce the velocity of flow, induced ground paste forms rotatory flow along center section of thick bamboo wall border route and.

In order to ensure the use effect, the arc-shaped buffering induction cofferdam 5 consists of a horizontal platform 5-1 and an arc-shaped baffle 5-2, the arc-shaped baffle 5-2 is arranged on the outer edge of the horizontal platform 5-1,

the horizontal platform 5-1 is level with the lowest point of the feeding hole of the feeding central well 4, and the arc baffle 5-2 is provided with 1-2 holes including but not limited to rectangle, square and other shapes, thereby playing the roles of shunting and kinetic energy consumption.

The material mixing pipe is a closed pipeline or a whole or partial open channel.

The length and the width of the horizontal platform 5-1 and the height of the arc-shaped baffle 5-2 can be adjusted according to working condition design, so that slurry can be guided to form rotary flow along the boundary path of the wall of the feeding center well 4, the material mixing pipe 2 is inclined, the feeding path entering the feeding center well 4 is obviously increased, the retention time of the slurry in the feeding pipe can be prolonged, and the full mixing of flocculating agents and the slurry is promoted.

The utility model aims at mixing ground paste, flocculating agent and clarified liquid into the homogeneous state, forming the dilution feeding of best concentration, promoting solid particle to deposit fast, simultaneously these liquid mix the back through feed well 4 and arc buffering induction cofferdam 5 get into the subsider with the velocity of flow as little as possible in to avoid causing destruction to the solid-liquid separation interface that has formed in the cell body.

The utility model discloses a service condition is, in material hybrid tube and well junction department, the inside wall sets up the induced baffle of arc buffering, it is fixed to adopt the rigid structure form, the induced baffle of arc buffering of connector is used for reducing the fluid speed that gets into the ground paste, induced transport ground paste forms the rotatory flow along the circular route in center section of thick bamboo wall boundary, the material hybrid tube can be the closed conduit, perhaps whole or partial open passage, whole material hybrid tube is certain angle tangential and enters into the feed well, the top sets up the flocculating agent pipe, be arranged in introducing the flocculating agent slurry flow.

The utility model discloses simple structure, practicality are strong, have strengthened the function and the suitability of feed well, can adjust the length and the width of arc buffering induction baffle according to concrete operating mode and realize the reduction to ground paste fluid speed and form special flow pattern, and this novel subsider charge-in system device can improve the sedimentation separation efficiency, reduces the consumption of flocculating agent, improves the underflow solid content, improves the productivity, reduction in production cost has good economy and social.

Claims (4)

1. The utility model provides a central charging well of high-efficient subsider, including the inlet pipe, material hybrid tube and feed well, a serial communication port, inlet pipe (1) one end is fixed on cell wall (6), the other end is linked together with material hybrid tube (2) one end, material hybrid tube (2) are fixed with cell body truss (8) through pull rod (7), material hybrid tube (2) are linked together rather than flocculating agent pipe (3) on upper portion, material hybrid tube (2) other end is connected with feed well (4), it induces cofferdam (5) to be provided with the arc buffering in the junction department of feed well (4) and material hybrid tube (2).

2. The central feedwell of a high efficiency settler according to claim 1, characteri zed in that said arc-shaped buffering inducing cofferdam (5) is composed of a horizontal platform (5-1) and arc-shaped baffles (5-2), and the arc-shaped baffles (5-2) are arranged at the outer edge of the horizontal platform (5-1).

3. The central feeding well of the high-efficiency settling tank as claimed in claim 2, wherein the horizontal platform (5-1) is flush with the lowest point of the feeding hole of the feeding central well (4), 1-2 holes are arranged on the arc-shaped baffle (5-2), and the cross section of the arc-shaped baffle is square.

4. A central feedwell according to claim 1, wherein the material mixing tube is a closed pipe or a fully or partially open channel.

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