CN218637930U

CN218637930U - Spiral case flow guide device of powder concentrator

Info

Publication number: CN218637930U
Application number: CN202222210455.9U
Authority: CN
Inventors: 杨骁楠; 史维青; 葛选才; 魏荣浩; 张涛; 万卫
Original assignee: Shaanxi Baineng Industrial Technology Co ltd
Current assignee: Shaanxi Baineng Industrial Technology Co ltd
Priority date: 2022-08-22
Filing date: 2022-08-22
Publication date: 2023-03-17
Anticipated expiration: 2032-08-22

Abstract

The utility model discloses a selection powder machine spiral case guiding device includes: the volute is provided with a primary air inlet on one side, and a primary air guide plate is arranged in the middle of the inner side of the primary air inlet. Through setting up the guide plate, can reduce dusty gaseous area of passing through for the wind speed increases, and the working distance shortens, and the centrifugal force of dust reduces, finally reduces the dust deposit.

Description

Spiral case flow guide device of powder concentrator

Technical Field

The utility model belongs to the technical field of the selection powder machine, concretely relates to selection powder machine spiral case guiding device.

Background

The closed cement grinding system is a combined grinding system comprising a roller press and a ball mill, and the system is provided with an O-Sepa high-efficiency dynamic powder concentrator for grading coarse and fine particles. As the ventilation in the mill is dust-containing gas, the wind speed is low, and the particle movement distance is long, the dust accumulation of the volute of the primary air inlet of the O-sepa high-efficiency dynamic powder concentrator is serious. The total ventilation area is reduced by the dust deposition of the volute, the separation efficiency of the equipment is reduced, and the machine-hour yield is low. After entering the volute, the secondary air enters the separation area unevenly, so that the flow field of the separation area is unstable, and the current of the main motor is higher.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the purpose of the disclosure is to provide a volute flow guide device of a powder concentrator, which can increase the wind speed of an air inlet by arranging a flow guide plate in the air inlet, thereby reducing the dust deposition of the volute.

In order to achieve the above purpose, the present disclosure provides the following technical solutions:

a volute flow guide device of a powder concentrator comprises:

a spiral case is arranged on the top of the shell,

one side of the volute is provided with a primary air inlet, and a primary air guide plate is arranged in the middle of the inner side of the primary air inlet.

Preferably, the primary air guide plate comprises a vertical plate and an inclined plate which are integrally formed, the vertical plate is parallel to the inner wall of the primary air inlet, and a certain angle is formed between the inclined plate and the primary air inlet.

Preferably, the angle between the inclined plate and the primary air inlet is 45-60 degrees.

Preferably, a primary air adjusting mechanism is arranged outside the volute.

Preferably, the primary air adjusting mechanism comprises a support, an electro-hydraulic push rod is arranged on the support,

the electro-hydraulic push rod is connected with an air supplementing door through a rotating shaft.

Preferably, a gap is reserved between the air supplementing door and the primary air inlet.

Preferably, a secondary air inlet is formed in the other side of the volute, and a secondary air guide plate is arranged in the middle of the inner side of the secondary air inlet.

Compared with the prior art, the beneficial effect that this disclosure brought does:

1. the primary air speed is increased, the dust deposition of the volute is reduced, and the problem of serious dust deposition of the volute is solved;

2. the flow field of the separation area is stabilized, and the powder separation efficiency is improved;

3. the flow field of the separation area is stabilized, and the current of the main motor is reduced.

Drawings

FIG. 1 is a schematic structural diagram of a volute flow guide device of a conventional powder concentrator;

FIG. 2 is a schematic structural diagram of a volute flow guide device of a powder concentrator provided by the disclosure;

the reference numerals are explained below:

1. a volute; 2. wind guide blades; 3. a primary air deflector; 4. a support; 5. an electro-hydraulic push rod; 6. a rotating shaft; 7. air supplement door; 8. a secondary air deflector; 9. a cage rotor.

Detailed Description

Specific embodiments of the present disclosure will be described in detail below with reference to fig. 1 to 2. While specific embodiments of the disclosure are shown in the drawings, it should be understood that the disclosure can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

It should be noted that certain terms are used throughout the description and claims to refer to particular components. As one skilled in the art will appreciate, various names may be used to refer to a component. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. The description which follows is a preferred embodiment of the disclosure, but is made for the purpose of illustrating the general principles of the disclosure and not for the purpose of limiting the scope of the disclosure. The scope of the present disclosure is to be determined by the terms of the appended claims.

To facilitate an understanding of the embodiments of the present disclosure, the following detailed description is to be considered in conjunction with the accompanying drawings, and the drawings are not to be construed as limiting the embodiments of the present disclosure.

In one embodiment, as shown in fig. 2, the present disclosure provides a volute flow guiding device of a powder concentrator, including:

the spiral case (1) is provided with a spiral case,

one side of the volute 1 is provided with a primary air inlet, and a primary air guide plate 3 is arranged in the middle of the inner side of the primary air inlet.

In this embodiment, in the structure shown in fig. 1, the primary air inlet has a large cross section, which results in a low primary air speed and a long particle movement distance, and thus the primary air inlet has a serious dust deposition, which reduces the total ventilation area, the separation efficiency of the equipment, and the machine-hour yield. As an improvement to fig. 1, in this embodiment, a primary air guide plate is disposed in the primary air inlet, so that the passing area of the dust-containing gas can be reduced, the air speed is increased, the operating distance is shortened, the centrifugal force of dust is reduced, and the dust deposition is reduced.

In another embodiment, the primary air guide plate 3 comprises a vertical plate and an inclined plate which are integrally formed, the vertical plate is parallel to the inner wall of the primary air inlet, and a certain angle is formed between the inclined plate and the primary air inlet.

In the embodiment, through comparison of multiple experiments, when the angle between the inclined plate and the primary air inlet is set to be 45-60 degrees, the air speed entering the primary air inlet can reach the maximum, and the dust deposition is reduced most favorably.

In another embodiment, a primary air adjusting mechanism is arranged outside the volute.

In this embodiment, a wind adjustment mechanism includes support 4, is provided with electric liquid push rod 5 on support 4, and electric liquid push rod 5 is connected with tonifying wind door 7 through pivot 6. Be provided with micro motor in the electricity liquid push rod, can drive the push rod through the motor and stretch out and draw back, and then promote the swing of benefit air door through the pivot, the change of the clearance of benefit air door through the swing realization and primary air intake to the regulation of the realization entering primary air intake amount of wind.

In another embodiment, a gap is reserved between the air supplement door 7 and the primary air inlet.

In the embodiment, the size of a gap between the air supplementing door and the primary air guide plate can be adjusted through swinging, so that the air quantity entering the volute is controlled. Although the air inlet area of the primary air inlet is reduced due to the arrangement of the primary air guide plate, the total air inlet air quantity is unchanged through the adjustment of the air supplementing door on the air quantity, so that the production requirement is not influenced.

In another embodiment, the other side of the volute 1 is provided with a secondary air inlet, and a secondary air guide plate 8 is arranged in the middle of the inner side of the secondary air inlet.

In this embodiment, the secondary air guide plate is fixedly installed in the volute in a welding manner, is arranged in parallel with the inner wall of the secondary air inlet, and has the same distance with the two sides of the inner wall. The secondary air guide plate can divide secondary air entering from a secondary air inlet into an inner part and an outer part, wherein the inner part enters the air guide blades from the near end, and the outer part enters the air guide blades from the far end, so that the secondary air can uniformly enter the air guide blades, and a gas flow field in a sorting area of the air guide blades 2 is stabilized, thereby improving the sorting efficiency.

The above general description of the invention and the description of the specific embodiments thereof, as referred to in this application, should not be construed as limiting the technical solutions of the invention. Those skilled in the art can add, reduce or combine the technical features disclosed in the general description and/or the specific embodiments (including the examples) to form other technical solutions within the protection scope of the present application according to the disclosure of the present application without departing from the structural elements of the present invention.

Claims

1. A spiral casing flow guiding device of a powder concentrator comprises:

a volute;

a primary air inlet is formed in one side of the volute, and a primary air guide plate is arranged in the middle of the inner side of the primary air inlet; the primary air guide plate is characterized by comprising a vertical plate and an inclined plate which are integrally formed, wherein the vertical plate is parallel to the inner wall of a primary air inlet, and a certain angle is formed between the inclined plate and the primary air inlet.

2. The spiral casing flow guiding device of the powder concentrator as claimed in claim 1, wherein the angle between the inclined plate and the primary air inlet is 45 ° to 60 °.

3. The powder concentrator volute diversion device of claim 1, wherein a primary air adjustment mechanism is provided outside the volute.

4. The spiral casing flow guiding device of the powder concentrator as claimed in claim 1, wherein the primary air adjusting mechanism comprises a support, an electro-hydraulic push rod is arranged on the support, and the electro-hydraulic push rod is connected with a supplementary air door through a rotating shaft.

5. The spiral casing flow guiding device of the powder concentrator as claimed in claim 4, wherein a gap is left between the air supply door and the primary air inlet.

6. The spiral casing flow guiding device of the powder concentrator as claimed in claim 1, wherein a secondary air inlet is formed at the other side of the spiral casing, and a secondary air flow guiding plate is formed at the middle position inside the secondary air inlet.

7. The spiral casing flow guiding device of the powder concentrator as claimed in claim 6, wherein the distance between the secondary air flow guiding plate and the inner wall of the secondary air inlet is equal.