CN217120554U

CN217120554U - Mining flotation machine

Info

Publication number: CN217120554U
Application number: CN202220074904.9U
Authority: CN
Inventors: 张云国; 王勇; 李亚志; 高俊峰
Original assignee: Wengniute Shengshi Lianhua Mining Co ltd
Current assignee: Wengniute Shengshi Lianhua Mining Co ltd
Priority date: 2022-01-12
Filing date: 2022-01-12
Publication date: 2022-08-05
Anticipated expiration: 2032-01-12

Abstract

The utility model discloses a mining flotation machine, this mining flotation machine's rabbling mechanism include a central authorities section of thick bamboo, main shaft, impeller and stator, and this flotation machine adopts the impeller that comprises by partition disc, upper blade and lower blade, and the impeller under this structure can guarantee that the abundant suspension of ore grain and bubble completely distributed in whole ore pulp in the inspiratory air, makes the flotation tank in have higher flotation probability. The stator mainly functions to convert the tangential rotating ore flow generated by the impeller into radial ore pulp flow, prevent the ore pulp from rotating, promote the formation of a stable foam layer and contribute to the recirculation of the ore pulp in the groove; secondly, a strong shearing annular area is generated around the impeller and between the stator vanes, and the formation of fine bubbles is promoted.

Description

Mining flotation machine

Technical Field

The utility model relates to a mining production facility technical field, concretely relates to mining flotation device.

Background

Flotation is the method with the best effect in the separation of fine and ultra-fine slime, and a mechanical stirring type flotation machine is the most widely applied equipment in mineral flotation. The mechanical stirring type flotation machine mainly comprises a tank body, a stirring mechanism, a driving device, a foam scraping mechanism, a bracket and the like. The stirring mechanism mainly comprises a central cylinder, a main shaft, an impeller, a stator, a slurry suction pipe, a bearing body, a motor and the like.

The impeller assembly of the impeller and the stator of the stirring mechanism is a core component of a mechanical stirring type flotation machine, the impeller plays an important role in stirring and circulating ore pulp, sucking and dispersing air, and the design and manufacture of the impeller determine the mechanical performance and the process performance of the flotation machine. The design of the existing impeller assembly has an optimization space, and a novel impeller assembly needs to be designed.

SUMMERY OF THE UTILITY MODEL

In order to overcome the technical defect, the utility model provides a mining flotation device.

In order to solve the above problem, the utility model discloses realize according to following technical scheme:

the utility model relates to a mining flotation machine, which comprises a tank body, a stirring mechanism arranged on a tank body bracket, a foam scraping mechanism and a driving device used for driving the stirring mechanism and the foam scraping mechanism; the stirring mechanism comprises a central cylinder, a main shaft, an impeller and a stator, wherein the main shaft is arranged in the central cylinder, and the impeller is in driving connection with the main shaft;

the stator is fixedly connected to the bottom of the central cylinder, and the impeller and the stator are arranged coaxially;

the impeller comprises a separation disc connected with the main shaft, and an upper blade and a lower blade which are respectively arranged on the upper surface and the lower surface of the separation disc, wherein the height of the upper blade is greater than that of the lower blade;

the stator includes the mounting panel and sets up in a plurality of oblique blades of mounting panel lower surface, the impeller is located the middle part of stator, and is a plurality of oblique blade is radial even interval arrangement on the mounting panel, and a plurality of oblique blades form the surrounding impeller.

Preferably, the upper blade is a rectangular plate-shaped structure, and the lower blade is a triangular plate-shaped structure.

Preferably, the impeller is provided with 6 sets of upper and lower blades, equally spaced.

Preferably, the impeller is made of a high chromium alloy.

Preferably, the height of the inclined blade is greater than that of the impeller, and the inclined blade is vertically arranged on the lower surface of the mounting plate;

the oblique blades are of arc-shaped plate-shaped structures, and chamfer structures are arranged at the outward lower end parts of the oblique blades.

Preferably, the stator is provided with 16 oblique blades.

Preferably, the mounting panel is the ring board, a plurality of perforation have been seted up to the mounting panel, and the setting of staggering each other with the mounted position of a plurality of oblique blades is perforated to a plurality of perforation.

Compared with the prior art, the beneficial effects of the utility model are that:

the impeller of the utility model comprises a separation disc connected with the main shaft, and an upper blade and a lower blade which are respectively arranged on the upper surface and the lower surface of the separation disc, wherein the height of the upper blade is greater than that of the lower blade; the stator includes the mounting panel and sets up in a plurality of oblique blades of mounting panel lower surface, the impeller is located the middle part of stator, and is a plurality of oblique blade is radial even interval arrangement on the mounting panel, and a plurality of oblique blades form the surrounding impeller.

Through the design, the flotation machine adopts the impeller consisting of the separating disc, the upper blade and the lower blade, and the impeller under the structure can ensure that ore particles are fully suspended and bubbles are completely distributed in all ore pulp while air is sucked, so that the flotation tank has higher flotation probability. The stator mainly functions to convert the tangential rotating ore flow generated by the impeller into radial ore pulp flow, prevent the ore pulp from rotating, promote the formation of a stable foam layer and contribute to the recirculation of the ore pulp in the groove; secondly, a strong shearing annular area is generated around the impeller and between the stator vanes, and the formation of fine bubbles is promoted.

Drawings

The following detailed description of embodiments of the invention is provided with reference to the accompanying drawings, in which:

fig. 1 is a schematic perspective view of a mining flotation machine of the present invention;

FIG. 2 is a schematic view of the A-A section of the mining flotation machine of the present invention;

fig. 3 is an assembly schematic view of the stirring mechanism of the present invention;

fig. 4 is a perspective view of the impeller of the present invention;

fig. 5 is a front view of the impeller of the present invention;

fig. 6 is a schematic perspective view of a stator of the present invention;

fig. 7 is a top view of the stator of the present invention;

in the figure:

10-a tank body;

20-stirring mechanism, 21-impeller, 211-separating disc, 212-upper blade, 213-lower blade, 22-stator and 221-oblique blade;

30-a foam scraping mechanism;

40-driving device.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

As shown in fig. 1 to 7, the utility model discloses a preferred structure of mining flotation machine.

As shown in fig. 1, the mining flotation machine of the present invention is a mechanical stirring flotation machine, and the mining flotation machine includes a tank 10, a stirring mechanism 20, a driving device 40, a foam scraping mechanism 30, a bracket, and the like. The bracket is arranged on the tank body, and the stirring mechanism 20, the driving device 40 and the foam scraping mechanism 30 are arranged on the bracket.

The stirring mechanism 20 comprises a central cylinder, a main shaft, an impeller 21 and a stator 22, wherein the main shaft is arranged in the central cylinder, and the impeller is in driving connection with the main shaft. The motor of the driving device enables the large belt wheel to rotate through the triangular belt, the large belt wheel drives the main shaft to rotate, and then the impeller at the bottom end of the stirring mechanism is driven to rotate at a certain linear speed. Along with the rotation of the impeller, the ore pulp in the groove is sucked between the blades of the impeller from the periphery to the bottom of the groove through the lower end of the impeller. After the ore pulp and the air are fully mixed between the blades, the ore pulp and the air enter the whole tank body after being stabilized and oriented by the stator. The bubbles rise to the foam stabilizing area, and through the enrichment process, the foams are scraped out from the overflow weir by the foam scraping mechanism and enter the foam tank. And a part of ore pulp flows to the lower part of the impeller, is stirred by the impeller and is mixed again to form mineralized bubbles.

Preferably, the tank body is generally of a rectangular section, so that the aeration uniformity of air and the stability of the liquid level can be improved, the flotation selectivity is improved, the separation precision of ore pulp and ore particles is increased, and the efficiency of the flotation machine is improved. The two sides of the tank bottom are provided with inclined planes with certain angles, so that silt is prevented from accumulating at the tank bottom, ore pulp can flow to the center of the tank body and then enter the impeller cavity for treatment, and the ore pulp treatment capacity is improved. The design of the tank body increases the stirring and catching area of the flotation machine and prolongs the flotation time.

Specifically, the mechanical design and mechanical principle of the mechanical agitation type flotation machine are common knowledge in the field, and are not described herein too much, and can be known by those skilled in the art according to the prior art.

The utility model discloses a main improvement is at the impeller assembly, and is concrete, the utility model provides a following preferred embodiment:

as shown in fig. 3, 4 and 5, the stator 22 is fixedly connected to the bottom of the central cylinder, and the impeller 21 and the stator 22 are coaxially arranged; the impeller 21 includes a partition plate 211 connected to the main shaft, and upper and

lower blades

212 and 213 respectively disposed on upper and lower surfaces of the partition plate 211, wherein the upper blade 212 is higher than the lower blade 213.

The upper blade 212 has a rectangular plate-shaped structure, and the lower blade 213 has a triangular plate-shaped structure. The impeller is provided with 6 groups of upper blades and lower blades which are distributed at equal intervals. The flotation machine adopts the impeller consisting of the separating disc, the upper blade and the lower blade, and the impeller under the structure can ensure that ore particles are fully suspended and bubbles are completely distributed in all ore pulp while air is sucked, so that the flotation tank has higher flotation probability.

As shown in fig. 6 and 7, the stator 22 includes a mounting plate and a plurality of oblique blades 221 disposed on the lower surface of the mounting plate, the impeller is located in the middle of the stator, the oblique blades are radially uniformly spaced on the mounting plate, the oblique blades form a surrounding impeller, and the ends of the oblique blades are spaced from the impeller.

Because the aeration stirring area in the flotation tank needs strong mixing, the ore pulp is in a turbulent flow state, and the separation area and the foam area need to be relatively stable. The stator mainly functions to convert the tangential rotating ore flow generated by the impeller into radial ore pulp flow, prevent the ore pulp from rotating, promote the formation of a stable foam layer and contribute to the recirculation of the ore pulp in the groove; secondly, a strong shearing annular area is generated around the impeller and between the stator vanes, and the formation of fine bubbles is promoted.

Specifically, the mounting panel is the ring board, a plurality of perforation have been seted up to the mounting panel, and the setting of staggering each other with the mounted position of a plurality of oblique blades is perforated a plurality of. The height of the inclined blades is greater than that of the impeller, and the inclined blades are vertically arranged on the lower surface of the mounting plate; the oblique blades are of arc-shaped plate-shaped structures, and chamfer structures are arranged at the outward lower end parts of the oblique blades.

In one implementation, the stator is provided with 16 pitched blades.

Through the arrangement, under the combined structure of the stator and the impeller, the radial clearance between the stator and the impeller is larger, and under the design of the inclined blades, the ore pulp-air mixture thrown out from the impeller can smoothly enter the ore pulp, so that the air is well dispersed.

In a preferred implementation, the impeller is made of a high chromium alloy. The service life of the flotation machine is several times that of a common material ZG40Mn2, the working reliability of the flotation machine is further improved, the consumption cost of the material is effectively controlled, the replacement and maintenance frequency of equipment is reduced, the labor intensity of workers is reduced, and the production stability is ensured.

Other structures of the mining flotation machine described in the embodiment are referred to in the prior art.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, so that any modification, equivalent change and modification made by the technical spirit of the present invention to the above embodiments do not depart from the technical solution of the present invention, and still fall within the scope of the technical solution of the present invention.

Claims

1. A mining flotation machine comprises a tank body, a stirring mechanism, a foam scraping mechanism and a driving device, wherein the stirring mechanism and the foam scraping mechanism are arranged on a tank body bracket; the stirring mechanism comprises a central cylinder, a main shaft, an impeller and a stator, wherein the main shaft is arranged in the central cylinder, the impeller is in driving connection with the main shaft, and the stirring mechanism is characterized in that:

the stator is fixedly connected to the bottom of the central cylinder, and the impeller and the stator are coaxially arranged;

2. The mining flotation machine of claim 1, wherein:

the upper blade is of a rectangular plate-shaped structure, and the lower blade is of a triangular plate-shaped structure.

3. A mining flotation machine according to claim 2, characterized in that:

the impeller is provided with 6 groups of upper blades and lower blades which are distributed at equal intervals.

4. A mining flotation machine according to claim 3, characterized in that:

the impeller is made of high-chromium alloy.

5. The mining flotation machine of claim 1, wherein:

the height of the inclined blades is greater than that of the impeller, and the inclined blades are vertically arranged on the lower surface of the mounting plate;

6. A mining flotation machine according to claim 5, characterized in that:

the stator is provided with 16 oblique blades.

7. A mining flotation machine according to claim 5, characterized in that:

the mounting panel is the ring board, a plurality of perforation have been seted up to the mounting panel, and the setting of staggering each other with the mounted position of a plurality of oblique blades is perforated a plurality of.