CN217368686U

CN217368686U - Combined three-separation efficient powder concentrator

Info

Publication number: CN217368686U
Application number: CN202221098988.6U
Authority: CN
Inventors: 童聪; 程宏伟; 汤跃; 韩露男
Original assignee: Chengdu Design & Research Institute Of Building Materials Industry Co ltd
Current assignee: Chengdu Design & Research Institute Of Building Materials Industry Co ltd
Priority date: 2022-05-07
Filing date: 2022-05-07
Publication date: 2022-09-06
Anticipated expiration: 2032-05-07

Abstract

The utility model relates to a combined three-separation efficient powder concentrator, which comprises a static separation module and a dynamic separation module, wherein the static separation module is communicated with the interior of the dynamic separation module, the dynamic separation module is arranged in the shell, and the static separation module is arranged outside the shell and is communicated with the interior of the shell; the upper part of the dynamic sorting module is communicated with a fine powder outlet, the lower part of the dynamic sorting module is communicated with a medium coarse powder outlet, and the static sorting module is communicated with a coarse powder outlet on the shell; the static sorting module is characterized in that a feed port and an air inducing port are formed in the upper end of the static sorting module, the static sorting module feeds materials in the vertical direction, and a scattering plate group is vertically arranged in the static sorting module and is used for contacting and scattering materials entering from the feed port. The method aims to sort the incoming material powder, realize the separation of coarse powder, medium coarse powder and fine powder, and has the advantages of high sorting speed, high sorting efficiency and the like.

Description

Combined three-separation efficient powder concentrator

Technical Field

The utility model belongs to the technical field of the powder screening, concretely relates to modular three separation high efficiency powder concentrator.

Background

In the production of building materials, such as cement, it is generally necessary to sort the powder after grinding by a mill in order to obtain a powder product having a certain fineness. At present, the equipment for sorting powder can be divided into two types according to whether a rotating cage exists or not: one is a static powder concentrator without a rotary cage, such as a V-shaped powder concentrator; the other is a dynamic powder concentrator with a rotating cage, such as an O-Sepa powder concentrator.

The static powder concentrator is mainly characterized in that: the sorting speed is high, but the sorting precision is low, and the fineness of the sorted powder is difficult to adjust; the dynamic powder concentrator is mainly characterized in that: the fineness of the sorted powder can be adjusted, but the main sorting process is carried out in a long and narrow space between the periphery of the rotating cage and the shell, when the material gas ratio is high, the powder cannot be well dispersed, and the powder is easy to agglomerate, so that the material is uneven, the flow field is unstable, and the sorting efficiency is not high.

A static powder concentrator is also simply connected to the bottom of a dynamic powder concentrator to form a combined powder concentrator, and the combined powder concentrator can integrate the advantages of the static powder concentrator and the dynamic powder concentrator to a certain extent, but has the defects of high overall height, large resistance loss and inconvenience for process arrangement.

SUMMERY OF THE UTILITY MODEL

In order to solve present static selection powder machine, dynamic selection powder machine and by the problem that the combination formula selection powder machine that the two simply connected and form exists, the utility model provides a high-efficient selection powder machine of modular three separation, this equipment can select separately supplied materials powder, realizes middlings, well middlings, the purpose of farine separation, and the adjustable fineness of selecting separately the powder of this equipment has the advantage of selecting separately fastly, sorting efficiency height, sorting accuracy height to compact structure, resistance loss is little, and process arrangement is convenient, easy operation.

The utility model adopts the technical proposal that: a combined three-separation efficient powder concentrator comprises a static separation module and a dynamic separation module, wherein the static separation module is communicated with the interior of the dynamic separation module, the dynamic separation module is arranged in a shell, and the static separation module is arranged outside the shell and is communicated with the interior of the shell; the upper part of the dynamic sorting module is communicated with a fine powder outlet, the lower part of the dynamic sorting module is communicated with a medium coarse powder outlet, and the static sorting module is communicated with a coarse powder outlet on the shell; the static sorting module is characterized in that a feed port and an air inducing port are formed in the upper end of the static sorting module, the static sorting module feeds materials in the vertical direction, and a scattering plate group is vertically arranged in the static sorting module and is used for contacting and scattering materials entering from the feed port.

Preferably, the static sorting modules are arranged along the tangential direction of the shell, and a plurality of the static sorting modules are arranged; the scattering plate group comprises a first scattering plate group and a second scattering plate group, the first scattering plate group corresponds to the feed inlet, the second scattering plate group is arranged beside the first scattering plate group, the first scattering plate group and the second scattering plate group are arranged along the flowing direction of materials, and the included angle between the plate surface and the vertical direction in the second scattering plate group is smaller than the included angle between the plate surface and the vertical direction in the first scattering plate group.

Preferably, the included angle between the plate surface in the second scattering plate group and the vertical direction is 15-30 degrees, and the included angle between the plate surface in the first scattering plate group and the vertical direction is 30-60 degrees.

Preferably, the dynamic sorting module comprises a rotating cage and a guide blade cylinder, the guide blade cylinder is sleeved outside the rotating cage, the rotating cage is connected with the motor through a rotating shaft, and guide blades on the guide blade cylinder are obliquely arranged.

Preferably, the radial included angle between the guide blades on the guide blade cylinder and the rotating cage is 15-70 degrees.

Preferably, the number of the static sorting modules is three, and the three static sorting modules are uniformly distributed outside the shell.

The utility model discloses following beneficial effect has: the utility model discloses a static mode of selecting separately the module and combining together with the dynamic sorting module, successively carry out twice to the supplied materials powder and select separately, utilize static sorting module to break up the material, divide fast and elect the middlings, reduce material gas ratio, the static sorting module who recycles several annular tangential arrangements leads and the intensive dispersion to the area material air current, reduces the resistance loss. On the basis, medium coarse powder and fine powder are sorted out efficiently and precisely by rotating a rotating cage of the dynamic sorting module, so that powder with three particle sizes is separated at one time; the utility model discloses can select separately into middlings, well middlings and farine with quick, the high efficiency of material powder, high accuracy, the powder fineness of selecting separately is adjustable to have compact structure, the resistance loss is little, and the technology is arranged conveniently, and easy operation's advantage can effectual reduction civil engineering frame height with select separately the power consumption, save investment cost.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic perspective view of the present invention;

fig. 2 is a top view of the present invention;

fig. 3 is a schematic diagram of the internal structure of the static sorting module.

In the figure: 1-a static sorting module; 2-a shell; 3-rotating the cage; 4-guide vane cylinder; 5-coarse powder return cone; 6-coarse powder outlet; 7-medium coarse powder outlet; 8-returning the medium coarse powder to a bin; 9-an induced draft port; 10-a feed inlet; 11-fine powder outlet.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1-3, a combined three-separation efficient powder concentrator comprises a static separation module 1 and a dynamic separation module, wherein the static separation module 1 is communicated with the inside of the dynamic separation module, the dynamic separation module is arranged inside a shell 2, and the static separation module 1 is arranged outside the shell 2 and is communicated with the inside of the shell 2; the upper part of the dynamic sorting module is communicated with a fine powder outlet 11, the lower part of the dynamic sorting module is communicated with a medium coarse powder outlet 7, and the static sorting module 1 is communicated with a coarse powder outlet 6 on the shell 2; the static sorting module 1 upper end sets up feed inlet 10 and induced air port 9, and the induced air port 9 cooperatees with the negative pressure that the fine powder export 11 produced for the air current forms mobile gas circuit in the selection powder machine, and also the gas circuit flows through static sorting module 1 inside after getting into from induced air port 9, in entering into dynamic sorting module, discharges from fine powder export 11 at last, static sorting module 1 vertical direction feeding, vertical scattering plate group that is provided with in the static sorting module 1, scattering plate group is used for contacting and scattering the material that gets into from feed inlet 10. The static sorting module 1 is vertically arranged, so that after materials enter, the materials can fall downwards under the action of gravity and are driven by wind of the induced draft opening 9 to blow towards the scattering plate group in the falling process, and the materials are scattered after being impacted.

The static sorting modules 1 are arranged along the tangential direction of the shell 2, and a plurality of static sorting modules 1 are arranged; the scattering plate group comprises a first scattering plate group 13 and a second scattering plate group 12, the first scattering plate group 13 corresponds to the feed inlet 10, the second scattering plate group 12 is arranged beside the first scattering plate group 13, as shown in fig. 3, the second scattering plate group 12 is arranged on one side far away from the air induction port 9 in the embodiment, the first scattering plate group 13 and the second scattering plate group 12 are arranged along the flowing direction of the materials, that is, a plurality of plate surfaces are arranged in parallel and are arranged in a row along the flowing direction of the materials, and the included angle between the plate surface in the second scattering plate group 12 and the vertical direction is smaller than that between the plate surface in the first scattering plate group 13 and the vertical direction, so that the materials driven by wind can be directly scattered on the second scattering plate group 12 to generate impact. The direction of the airflow entering from the induced draft opening 9 in this embodiment is the direction blowing from the first scattering plate group 13 to the second scattering plate group 12, and finally discharging from the outlet of the static sorting module 1, and after the airflow discharged from the outlet of the static sorting module 1 enters along the tangential direction of the casing 2, an upward swirling flow is generated on the inner wall of the casing 2.

The included angle between the plate surface and the vertical direction in the second scattering plate group 12 is 15-30 degrees, and the included angle between the plate surface and the vertical direction in the first scattering plate group 13 is 30-60 degrees.

The dynamic sorting module comprises a rotating cage 3 and a guide vane cylinder 4, wherein the guide vane cylinder 4 is sleeved outside the rotating cage 3, the rotating cage 3 is connected with a motor through a rotating shaft, and guide vanes on the guide vane cylinder 4 are obliquely arranged. The radial included angle between the guide blades on the guide blade cylinder 4 and the rotating cage 3 is 15-70 degrees.

In this embodiment, the number of the static sorting modules 1 is three, and the static sorting modules 1 are uniformly distributed outside the casing 2.

The specific working mode is as follows: incoming powder respectively enters from the feed inlets 10 of the three static sorting modules 1, and airflow enters from the induced draft ports 9 of the three static sorting modules under negative pressure of the system. After entering, the materials fall down and collide with the first scattering plate group 13 in sequence to be scattered, and then are blown by airflow to collide with the second scattering plate group 12 to be further scattered, and the materials are rapidly sorted. Part of the meal settles by gravity into the meal return cone 5 and is discharged from the meal outlet 6.

The above-mentioned strip flow is directed by several tangentially arranged static sorting modules 1 with a certain tangential velocity. And spirally rises along the inner wall of the cylindrical shell 2 under the suction of the negative pressure of the fine powder outlet 11. In the process, another part of the coarse powder loses kinetic energy due to friction with the inner wall of the shell 2, and is settled into the coarse powder return cone 5 by gravity and discharged from the coarse powder outlet 6.

After the separation, the coarse powder and the fine powder carried by the airflow continuously rise to the dynamic separation module, the rotating cage 3 further increases the tangential speed originally possessed by the powder, and the tangential speed enables the powder to generate centrifugal force. The coarse powder is thrown outwards because the centrifugal force applied to the coarse powder is larger than the drag force of the airflow, loses kinetic energy after colliding with the guide blades on the guide blade cylinder 4, falls into the coarse powder returning bin 8 and is discharged from the coarse powder outlet 7. The fine powder is dragged into the rotating cage 3 by the airflow due to the air drag force larger than the centrifugal force, and then is discharged through the fine powder outlet 11, and the whole sorting is completed.

The negative pressure at the fine powder outlet 11 is adjustable to control the speed of the airflow of the static sorting module 1 and thus the coarse powder yield and coarse powder fineness.

The rotation direction of the rotating cage 3 is the same as the guiding rotation direction of the static sorting module 1 to the airflow, and the rotating speed is adjustable and used for controlling the tangential speed added to the powder, so that the centrifugal force of the powder is adjusted, and the yield and the fineness of the coarse powder and the fine powder in the powder are controlled and adjusted. The guiding effect of the static sorting module on the 1 airflow greatly reduces the resistance of the device to the airflow.

The working principle of the static sorting module 1 is inertial sorting and gravity settling, and the sorting speed and efficiency are high. The working principle of the dynamic sorting module is centrifugal sorting, and the sorting precision is high. The air flow with the materials after being rapidly sorted by the static sorting module 1 has low material-air ratio and good dispersibility, so that the materials entering the dynamic sorting module are uniformly dispersed, and the flow field is stable. The static sorting module 1 and the dynamic sorting module supplement each other, so that the equipment runs with high efficiency, high precision and low resistance.

It will be appreciated by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be taken as limiting the present invention, and any changes and combinations made to the above embodiments are within the scope of the present invention as long as they are within the spirit of the present invention.

Claims

1. The utility model provides a modular three separation high efficiency powder concentrator which characterized in that: the device comprises a static sorting module (1) and a dynamic sorting module, wherein the static sorting module (1) is communicated with the interior of the dynamic sorting module, the dynamic sorting module is arranged in a shell (2), and the static sorting module (1) is arranged outside the shell (2) and is communicated with the interior of the shell (2); the upper part of the dynamic sorting module is communicated with a fine powder outlet (11), the lower part of the dynamic sorting module is communicated with a medium coarse powder outlet (7), and the static sorting module (1) is communicated with a coarse powder outlet (6) on the shell (2); the device is characterized in that a feed inlet (10) and an air inducing port (9) are formed in the upper end of the static sorting module (1), the static sorting module (1) feeds materials in the vertical direction, a scattering plate group is vertically arranged in the static sorting module (1), and the scattering plate group is used for contacting and scattering materials entering from the feed inlet (10).

2. The combined three-separation efficient powder concentrator according to claim 1, wherein: the static sorting modules (1) are arranged along the tangential direction of the shell (2), and a plurality of static sorting modules (1) are arranged; the scattering plate group comprises a first scattering plate group (13) and a second scattering plate group (12), the first scattering plate group (13) corresponds to the feed inlet (10), the second scattering plate group (12) is arranged beside the first scattering plate group (13), the first scattering plate group (13) and the second scattering plate group (12) are arranged along the flowing direction of materials, and the included angle between the plate surface and the vertical direction in the second scattering plate group (12) is smaller than the included angle between the plate surface and the vertical direction in the first scattering plate group (13).

3. The combined three-separation efficient powder concentrator according to claim 2, characterized in that: the included angle between the middle plate surface of the second scattering plate group (12) and the vertical direction is 15-30 degrees, and the included angle between the middle plate surface of the first scattering plate group (13) and the vertical direction is 30-60 degrees.

4. The combined three-separation efficient powder concentrator according to claim 3, wherein: the dynamic sorting module comprises a rotating cage (3) and a guide vane cylinder (4), the guide vane cylinder (4) is sleeved outside the rotating cage (3), the rotating cage (3) is connected with a motor through a rotating shaft, and guide vanes on the guide vane cylinder (4) are obliquely arranged.

5. The combined three-separation efficient powder concentrator as claimed in claim 4, wherein: the radial included angle between the guide blade on the guide blade cylinder (4) and the rotating cage (3) is 15-70 degrees.

6. The combined three-separation efficient powder concentrator according to claim 1, wherein: the static sorting modules (1) are arranged in a three-way mode, and the static sorting modules (1) are uniformly distributed outside the shell (2).