CN211463524U

CN211463524U - Flotation device

Info

Publication number: CN211463524U
Application number: CN201922381587.6U
Authority: CN
Inventors: 王战斌; 王功武
Original assignee: Zhongxiang Tungsten Industry Co ltd
Current assignee: Zhongxiang Tungsten Industry Co ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-09-11
Anticipated expiration: 2029-12-26

Abstract

The utility model discloses a flotation device, which comprises two parallel stirring barrels, wherein a stirring cavity is formed in each stirring barrel, and the cross section of each stirring barrel is U-shaped; the stirring cavities of the two stirring barrels are communicated; a stirring device is arranged in the stirring cavity of each stirring barrel; the stirring device comprises a hollow shaft and a stator fixed at the bottom of the stirring barrel; the hollow shaft is vertically arranged in the stirring cavity; the upper part of the hollow shaft extends out of the opening edge of the stirring barrel, is movably connected with the stirring barrel through a bearing and is connected with a motor through a transmission device; the bottom end of the hollow shaft is provided with an impeller which is arranged at the bottom of the stirring cavity; the stator adopts the open stator of radial short blade of formula of suspending, sets up in the impeller top. Adopt the utility model discloses the energy consumption is low, efficient, the tailings is difficult to the deposit.

Description

Flotation device

Technical Field

The utility model relates to a mineral processing equipment especially relates to a flotation device.

Background

Flotation is the means of beneficiation of most minerals. Flotation is generally carried out using flotation machines.

The existing flotation machines are single motors, one motor drives stirring equipment to work, large power is needed, and the flotation efficiency is low.

In addition, most of the existing flotation machines adopt a more traditional inverted trapezoidal, rectangular or circular barrel body. Most of barrel bodies are shallow and wide, so that the heights of a foam area and a flotation area are lower, the horizontal movement distance of a foam layer is relatively large, the aeration uniformity of the bottom of the barrel is affected, and the condition of ore accumulation at the bottom of the barrel is easy to occur.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a flotation device that the energy consumption is low, efficient, the tailings is difficult to the deposit.

In order to solve the technical problem, the flotation device of the utility model comprises two parallel mixing tanks, wherein a mixing cavity is formed in the mixing tank, and the cross section of the mixing tank is U-shaped; the stirring cavities of the two stirring barrels are communicated; a stirring device is arranged in the stirring cavity of each stirring barrel; the stirring device comprises a hollow shaft and a stator fixed at the bottom of the stirring barrel; the hollow shaft is vertically arranged in the stirring cavity; the upper part of the hollow shaft extends out of the opening edge of the stirring barrel, is movably connected with the stirring barrel through a bearing and is connected with a motor through a transmission device; the bottom end of the hollow shaft is provided with an impeller which is arranged at the bottom of the stirring cavity; the stator adopts the open stator of radial short blade of formula of suspending, sets up in the impeller top.

The stator is provided with 24 blades.

And an air regulating valve is arranged at the upper part of the hollow shaft.

The impeller is in an inverted frustum shape, and a cavity is formed in the bottom of the impeller.

An air distributor is arranged in a cavity of the impeller, and the air distributor is of a cylindrical structure with a round hole.

By adopting the structure of the utility model, because two parallel stirring barrels are arranged, the section of each stirring barrel is U-shaped, the stirring cavities of the two stirring barrels are communicated, and the liquid stirred by the stirring devices of the two stirring barrels and the mineral are interacted when the stirring devices work, thereby increasing the stirring effect and improving the flotation efficiency; meanwhile, tests prove that the total power of the motors of the two stirring devices with the structure is smaller than that of the motor flotation device, so that the energy consumption is reduced. In addition, the cross-sectional shape of agitator is the U-shaped, and stirring chamber bottom sets up stator and impeller, and the stirring power is strong, and the tailings is difficult to the deposit, has improved flotation efficiency.

The impeller is in an inverted frustum shape, and the bottom of the impeller is provided with a cavity, so that the stirring device is simple in structure, strong in stirring capacity and low in energy consumption. A porous cylindrical air distributor is arranged in the impeller cavity, so that air is uniformly dispersed, and the flotation efficiency is further improved.

Drawings

FIG. 1 is a schematic view of the structure of the stirring barrel of the present invention;

fig. 2 is a schematic structural view of the stirring device of the present invention.

Detailed Description

The invention is described in detail below with reference to the following drawings and embodiments:

as shown in fig. 1 and 2, the flotation device of the present invention includes two parallel mixing tanks 4, and a mixing chamber is formed in each mixing tank.

The section of the stirring barrel is U-shaped.

The stirring cavities of the two stirring barrels are communicated.

And a stirring device is arranged in the stirring cavity of each stirring barrel.

The stirring device comprises a hollow shaft 5 and a stator 3 fixed at the bottom of the stirring barrel.

The hollow shaft is vertically arranged in the stirring cavity. The upper part of the hollow shaft extends out of the opening edge of the stirring barrel, is movably connected with the stirring barrel through a bearing 6 and is connected with a motor through a transmission device. The upper part of the hollow shaft is communicated with a blower for ventilation. The bottom of the hollow shaft is provided with an impeller 1 which is arranged at the bottom of the stirring cavity.

The stator adopts a suspended radial short-blade open stator and is arranged above the impeller.

Preferably, the stator is provided with 24 blades.

In further improvement, an air adjusting valve 7 is arranged at the upper part of the hollow shaft. The air inlet volume is convenient to adjust by communicating the air adjusting valve with the air blower.

The improved impeller is in a shape of an inverted frustum, and a cavity is formed at the bottom of the impeller.

In a further development, an air distributor 2 is arranged in the cavity of the impeller. The air distributor is a cylindrical structure provided with a round hole.

During operation, impeller 1 is rotatory, the ore pulp in agitator 4 is from sucking impeller 1 blade room from the bottom all around by impeller 1 lower extreme, simultaneously, ventilate by the air-blower and get into in the air distributor 2 of impeller 1 cavity through air regulating valve 7, hollow main shaft 5, get into impeller 1 blade room through the peripheral hole of air distributor 2, after ore pulp and air carry out intensive mixing in impeller 1 blade room, discharge by impeller 1 upper half periphery, the motion of the oblique top of discharge ore flow direction, after being stabilized and oriented by stator 3 of installing in impeller 1 oblique top all around, disperse whole stirring chamber. The mineralized bubbles rise to the liquid surface in the stirring barrel to form foam, and the foam automatically flows into the foam tank. The slurry is returned to the impeller 1 zone for recirculation. The other part enters the next stage through a circulation hole on the wall of the stirring barrel for re-sorting.

Claims

1. A flotation device characterized by: comprises two parallel stirring barrels (4), wherein a stirring cavity is formed in each stirring barrel, and the cross section of each stirring barrel is U-shaped; the stirring cavities of the two stirring barrels are communicated; a stirring device is arranged in a stirring cavity of the stirring barrel; the stirring device comprises a hollow shaft (5) and a stator (3) fixed at the bottom of the stirring barrel; the hollow shaft is vertically arranged in the stirring cavity; the upper part of the hollow shaft extends out of the opening edge of the stirring barrel, is movably connected with the stirring barrel through a bearing (6), and is connected with a motor through a transmission device; the bottom end of the hollow shaft is provided with an impeller (1), and the impeller is arranged at the bottom of the stirring cavity; the stator adopts the open stator of radial short blade of formula of suspending, sets up in the impeller top.

2. The flotation device of claim 1, wherein: the stator is provided with 24 blades.

3. The flotation device of claim 1, wherein: an air regulating valve (7) is arranged at the upper part of the hollow shaft.

4. The flotation device of claim 1, wherein: the impeller is in an inverted frustum shape, and a cavity is formed in the bottom of the impeller.

5. The flotation device of claim 4, wherein: an air distributor (2) is arranged in a cavity of the impeller, and the air distributor is of a cylindrical structure with a round hole.