CN213494776U

CN213494776U - Vertical rotary screen

Info

Publication number: CN213494776U
Application number: CN202022403619.0U
Authority: CN
Inventors: 徐海红
Original assignee: Jiangyin Nezs Machinery Technology Co ltd
Current assignee: Jiangyin Nezs Machinery Technology Co ltd
Priority date: 2020-10-26
Filing date: 2020-10-26
Publication date: 2021-06-22
Anticipated expiration: 2030-10-26

Abstract

The utility model discloses a vertical rotary screen, the inside vertical screening mechanism that is equipped with of shell sets up the feed inlet on the shell, exports down and goes up the export, screening mechanism is including enclosing into the screen cloth of cylinder and erectting in the inside screw shaft of screen cloth, and the screw shaft has the inside baffle, lower baffle of being provided with of helical blade shell, and the screen cloth setting is at last baffle under and between the baffle. The utility model feeds from the lower part, powder materials are continuously screened from the lower part to the upper part along with the helical blade, fine powder materials are separated to a fine powder material area by the screen mesh and fall downwards to be output from the lower part, while coarse powder materials are output from the upper part along with the upward movement of the helical blade, namely, in the screening process, the fine powder materials and the coarse powder materials have opposite moving directions, and can not be mixed after screening, thus having good separation effect; the fine powder area is isolated from the feeding area and the coarse powder area by the upper partition plate and the lower partition plate, so that the situation that the separation effect is influenced when powder in the feeding area and the coarse powder area enters the fine powder area is avoided, and the separation effect is good.

Description

Vertical rotary screen

Technical Field

The utility model belongs to the technical field of powder screening equipment and specifically relates to a vertical rotary screen who sieves rubber powder.

Background

The screening refers to a process of dividing broken powder into different grades through a screen surface, and the screening machine is a vibrating screening mechanical device which divides the powder into different grades according to the particle size by making partial particles penetrate through a screen by utilizing the relative motion of the broken powder and the screen surface.

The Chinese utility model patent 201822248897.6 discloses a vertical sand sieving machine, wherein a sand outlet is arranged on the lower surface of a shell, a feed inlet is arranged at the top end of the shell, a stone outlet is arranged on one side surface of the bottom of the shell, a sieving mechanism is vertically arranged in the shell, a stone opening is arranged on one side surface of the bottom end of the sieving mechanism, and a spiral screen is selected as the sieving mechanism; the sand material is poured from the feed inlet, flows through the spiral screen and falls layer by layer until falling into the sand material outlet and falling out from the sand material outlet, and the stone material rolls down along the spiral screen, rolls out from the stone material outlet and falls onto the slope, rolls to the stone material outlet from the slope and rolls out from the stone material outlet, thereby achieving the purpose of screening the sand. The vertical sand screening machine feeds materials from the top, and both large particles and fine particles are discharged from the bottom, namely, the large particles and the fine particles are mixed on each layer of the spiral screen and fall to a discharge port together, so that on one hand, the fine particles are easy to roll out from a stone port along with the large particles, waste of the fine particles is caused, on the other hand, the large particles are easy to roll out from the stone port and fall out from the discharge of the fine particles along with the fine particles, and the separation effect is poor; and the large granules and the fine granules are discharged from the lower part, so that the condition of stacking is easily caused.

SUMMERY OF THE UTILITY MODEL

The applicant aims at the defects that the upper feeding part and the lower discharging part of the existing vertical screening device are poor in separation effect, the materials are easy to waste, the stacking situation occurs and the like, and provides a vertical rotary screen reasonable in structure.

The utility model discloses the technical scheme who adopts as follows:

a vertical rotary screen is characterized in that a screening mechanism is vertically arranged in a shell, a feed inlet, a lower outlet and an upper outlet are arranged on the shell, the screening mechanism comprises a screen mesh which is enclosed into a cylinder shape and a screw shaft which is vertically arranged in the screen mesh, the screw shaft is provided with a helical blade, an upper clapboard and a lower clapboard are arranged in the shell, the screen mesh is arranged between the upper clapboard and the lower clapboard, and the upper clapboard, the lower clapboard and the screen mesh divide the inner cavity of the shell into a feed area which is positioned below the lower clapboard, a coarse powder area which is positioned above the upper clapboard and a fine powder area which is positioned outside the screen mesh and between the upper clapboard and the lower clapboard; the cavity inside the screen is a screening channel which is respectively communicated with the feeding area and the coarse powder area; the feed inlet is communicated with the feeding area and is positioned at the lower part of the shell; the lower outlet is arranged at the bottom of the fine powder area and is positioned at the lower part of the shell; the upper outlet is communicated with the coarse powder area and is positioned at the upper part of the shell; when the screen is rotated, the fine powder is screened to the fine powder area by the screen and flows out from the lower outlet, and the coarse powder is intercepted in the screening channel by the screen, is upwards conveyed to the coarse powder area along with the helical blade and flows out from the upper outlet.

The utility model feeds from the lower part, powder materials are continuously screened from the lower part to the upper part along with the helical blade, fine powder materials are separated to a fine powder material area by the screen mesh and fall downwards to be output from the lower part, while coarse powder materials are output from the upper part along with the upward movement of the helical blade, namely, in the screening process, the fine powder materials and the coarse powder materials have opposite moving directions, and can not be mixed after screening, thus having good separation effect; in the whole process of the powder moving from bottom to top, the fine powder is continuously screened at least more, so that the fine powder is separated more thoroughly, and the waste of the fine powder is avoided; the fine powder and the coarse powder are respectively output from the upper part and the lower part, and output channels of the fine powder and the coarse powder are mutually separated and do not interfere with each other, so that the condition of stacking is avoided. The fine powder area is isolated from the feeding area and the coarse powder area by the upper partition plate and the lower partition plate, so that the situation that the separation effect is influenced when powder in the feeding area and the coarse powder area enters the fine powder area is avoided, and the separation effect is good.

As a further improvement of the above technical solution:

the spiral blades of the screw shaft are provided with a plurality of baffles along the axial direction, and the inner edges of the baffles have a certain distance with the outer peripheral surface of the central shaft of the screw shaft.

The spiral blade of the utility model is provided with a plurality of baffles along the axial direction, the baffles are evenly arranged along the circumferential direction, the screening channel is divided into a plurality of smaller screening areas, on one hand, each screening area rotationally separates powder materials to be screened from bottom to top, which is more beneficial to screening coarse powder materials and fine powder materials, and the separation effect is better; on the other hand, because the rotation of screw shaft is usually more than 1000 revolutions per minute, the powder is under great centrifugal force effect, qualified fine powder can all be pressed close to the screen cloth outwards basically, the powder material is selected separately by the baffle fast under the high-speed centrifugal force effect, the qualified fine powder that sieves out is concentrated by the draught fan and is collected, coarse powder is along with helical blade from bottom to top motion to coarse powder district, from the upper exit outflow of upper portion spiral top, more do benefit to coarse powder can be sieved thoroughly fast, guaranteed efficient separation effect.

The lower baffle slopes downwardly toward the lower outlet.

The shell comprises a lower shell and an upper shell, the lower baffle is arranged at the upper end part of the lower shell and inclines downwards towards the lower outlet, and the feed inlet is positioned at one side of the lower baffle at a high position and inclines downwards.

The utility model discloses a lower baffle downward sloping that exports under towards, the lower baffle of slope plays the water conservancy diversion effect to fine powder, and the export outflow is gone down to the guide fine powder orientation, avoids the fine powder condition that the windrow appears. The feed inlet sets up in the higher one side of inferior valve height to the downward sloping setting does benefit to the smooth and easy inflow of powder of treating the screening.

The upper baffle plate is arranged in a downward inclined mode, and the upper outlet is located on one side of the lower position of the upper baffle plate.

The utility model discloses an go up baffle downward sloping setting, go up one side that the export is located the baffle low level, go up the baffle and play the water conservancy diversion effect to coarse powder, guide coarse powder material orientation export outflow, avoid the condition that the windrow appears in the coarse powder material. The lower edge of the upper outlet is flush with the upper partition plate or lower than the lower partition plate, so that the situations of forming a coarse powder dead zone and accumulating coarse powder are avoided.

The lower edge of the upper outlet is flush with the upper baffle plate or lower than the upper baffle plate.

The lower edge of the lower outlet is flush with the lower baffle plate or lower than the lower baffle plate.

The utility model discloses a lower border of lower export with baffle parallel and level down or be less than down the baffle, avoid forming fine powder dead angle, and the accumulational condition of fine powder appears.

The center of the lower clapboard is provided with a lower sleeve, and the feed inlet is downwards inclined to extend into the inner cavity of the lower sleeve; the center of the upper clapboard is provided with an upper sleeve which is positioned on the wall surface of the coarse powder area and is provided with an opening corresponding to the upper outlet; the two ends of the screen mesh are respectively sleeved at the lower end part of the upper sleeve and the upper end part of the lower sleeve.

The lower shell, the lower sleeve and the lower partition plate are integrally formed.

The upper shell, the upper sleeve and the upper clapboard are integrally formed.

The utility model has the advantages as follows:

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a sectional view of fig. 1.

Fig. 3 is a sectional view a-a in fig. 2.

Fig. 4 is a perspective view of the screw shaft.

Fig. 5 is a front view of fig. 4.

In the figure: 1. a base; 2. a lower case; 3. an upper shell; 4. a feed inlet; 5. an upper outlet; 6. screening a screen; 7. a lower outlet; 8. a delivery pipe; 9. a screw shaft; 10. a helical blade; 11. a lower sleeve; 12. an upper sleeve; 13. an upper partition plate; 14. a fine powder region; 15. a screening channel; 16. a lower partition plate; 17. a baffle plate; 18. a feed zone; 19. a coarse powder area; 20. a motor; 21. screening areas; 22. and (4) opening.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

As shown in fig. 1, the cuboid housing of the present invention is vertically fixed on a base 1, and comprises a lower housing 2 and an upper housing 3 which are sequentially arranged from bottom to top; a feed inlet 4 is arranged at the rear side of the lower part of the shell, a lower outlet 7 is arranged at the front side of the lower part of the shell, the lower outlet 7 is connected with a conveying pipe 8, and an upper outlet 5 is arranged at the left side of the upper part of the shell; as shown in fig. 2, the inside of the housing is vertically provided with a sieving mechanism, which comprises a cylindrical screen 6 and a screw shaft 9 vertically arranged inside the screen 6, the periphery of the screw shaft 9 is provided with a helical blade 10, as shown in fig. 3, the upper end of the screw shaft 9 is arranged on the top surface of the upper housing 3 in a penetrating manner, the lower end of the screw shaft 9 extends into the base 1 and is connected with a motor 20 on the base 1 through a transmission device, the motor 20 drives the screw shaft 9 to rotate, and the powder is subjected to rotary motion from bottom to top along with the helical blade 10 on the screw shaft 9 and is sieved by the screen 6.

As shown in fig. 2, the upper end of the lower casing 2 has a lower partition 16 which is inclined downwards towards the lower outlet 7, the center of the lower partition 16 has a cylindrical lower sleeve 11, the upper end and the lower end of the lower sleeve 11 respectively penetrate through the lower partition 16, the lower partition 16 divides the interior of the lower casing 2 into a feeding area 18, and the inclined lower partition 16 guides the fine powder to flow towards the lower outlet 7, so as to avoid the situation of piling the fine powder; the feeding hole 4 is arranged on the higher side of the lower shell 2, extends into the lower part of the lower sleeve 11 positioned in the feeding area 18 in a downward inclined manner and is communicated with the cavity in the lower sleeve 11, and the feeding hole 4 is arranged in a downward inclined manner so as to be beneficial to smooth inflow of powder to be screened; the lower shell 2, the lower sleeve 11 and the lower partition plate 16 are integrally formed. As shown in fig. 3, the upper end of the upper casing 3 has an upper partition 13 which is inclined downward toward the upper outlet 5, the center of the upper partition 13 has a cylindrical upper sleeve 12, the upper and lower ends of the upper sleeve 12 respectively penetrate through a lower partition 16, the upper partition 13 partitions the interior of the upper casing 3 into a coarse powder region 19, an opening 22 is provided on the wall surface of the upper sleeve 12 which is located in the coarse powder region 19 and corresponds to the upper outlet 5, and the internal cavity of the upper sleeve 12 is communicated with the coarse powder region 19 through the opening 22; the upper outlet 5 is positioned on one side of the lower position of the upper baffle 13 and is communicated with the coarse powder area 19, the upper baffle 13 plays a role in guiding coarse powder to flow out towards the upper outlet 5, so that the coarse powder is prevented from being stacked, the lower edge of the upper outlet 5 is flush with the upper baffle 13 or is lower than the upper baffle 13, and the coarse powder dead area is prevented from being formed and the coarse powder is prevented from being stacked; the upper shell 3, the upper sleeve 12 and the upper partition plate 13 are integrally formed. As shown in fig. 2 and 3, two end portions of the screen 6 are respectively sleeved at the lower end portion of the upper sleeve 12 and the upper end portion of the lower sleeve 11, an inner cavity of the screen 6 is communicated with inner cavities of the upper sleeve 12 and the lower sleeve 11 to form a screening channel 15, a cavity area between the upper partition plate 13 and the lower partition plate 16 outside the screen 6, the upper sleeve 12 and the lower sleeve 11 is a fine powder area 14, the fine powder area 14 is isolated from the feeding area 18 and the coarse powder area 19 by the upper partition plate 13 and the lower partition plate 16, the powder of the feeding area 18 and the coarse powder area 19 is prevented from entering the fine powder area 14 to affect the separation effect, and the separation effect is good; the lower outlet 7 is arranged at the bottom of the fine powder area 14 and is positioned at the lower part of the shell, and the lower edge of the lower outlet 7 is flush with the lower partition plate 16 or lower than the lower partition plate 16, so that the situation of fine powder accumulation caused by the formation of a fine powder dead angle is avoided.

As shown in fig. 4, a plurality of baffles 17 are axially arranged on the helical blades 10 of the screw shaft 9 between the inner regions of the screen 6, the plurality of baffles 17 are uniformly arranged along the circumferential direction of the helical blades 10, as shown in fig. 5, a certain distance is provided between the inner edge of each baffle 17 and the outer circumferential surface of the central shaft of the screw shaft 9 so as to facilitate the passage of powder, the plurality of baffles 17 divide the sieving channel 15 into a plurality of smaller sieving regions 21, on one hand, each sieving region 21 rotationally separates powder to be sieved from bottom to top, which is more beneficial to sieving coarse powder and fine powder, and the separation effect is better; on the other hand, because the rotation of the screw shaft 9 is usually more than 1000 revolutions per minute, the powder is under the action of larger centrifugal force, qualified fine powder basically approaches to the screen 6 outwards, the powder is rapidly separated by the baffle 17 under the action of high-speed centrifugal force, the screened qualified fine powder is collected by the induced draft fan in a centralized manner, the coarse powder moves to the coarse powder area 19 from bottom to top along with the helical blade 10 and flows out from the upper outlet 5 at the top of the upper helical top end, the coarse powder can be rapidly screened thoroughly, and the efficient separation effect is ensured.

When the utility model is used in practice, the motor 20 drives the screw shaft 9 to rotate; powder to be screened flows into a lower sleeve 11 from a feeding hole 4, rotates upwards in a screening channel 15 along with a spiral blade 10 of a screw shaft 9, passes through a screen 6 under the action of centrifugal force, enters a fine powder area 14, falls downwards and flows out of a lower outlet 7 to a conveying pipe 8 for output; the coarse powder in the powder material is intercepted in the sieving channel 15 by the sieve 6, enters the upper sleeve 12 along with the spiral blade 10 upwards, reaches the coarse powder area 19, and then flows out from the upper outlet 5. The utility model feeds from the lower part, powder materials are continuously screened from the lower part to the upper part along with the helical blade 10, fine powder materials are separated to a fine powder material area 14 by the screen 6 and fall downwards to be output from the lower part, coarse powder materials are output from the upper part along with the upward movement of the helical blade 10, namely, in the screening process, the fine powder materials and the coarse powder materials have opposite moving directions, and can not be mixed after screening, and the separation effect is good; in the whole process of the powder moving from bottom to top, the fine powder is continuously screened at least more, so that the fine powder is separated more thoroughly, and the waste of the fine powder is avoided; the fine powder and the coarse powder are respectively output from the upper part and the lower part, and output channels of the fine powder and the coarse powder are mutually separated and do not interfere with each other, so that the condition of stacking is avoided.

The above description is illustrative of the present invention and is not intended to limit the present invention, and the present invention may be modified in any manner without departing from the spirit of the present invention. For example, the upper partition 13 and the lower partition 16 may not be provided with sleeves, two ends of the screen 6 are directly disposed on the upper partition 13 and the lower partition 16, the internal cavity of the screen 6 is a screening channel 15 and is respectively communicated with the feeding area 18 and the coarse powder area 19, and the feeding port 4 directly extends into the feeding area 18 and is communicated with the screening channel 15. The lower shell 2, the lower sleeve 11, the lower partition plate 16, the upper shell 3, the upper sleeve 12 and the upper partition plate 13 can also be assembled and molded as required after being respectively and independently produced.

Claims

1. The utility model provides a vertical rotary screen, the inside vertical screening mechanism that is equipped with of shell sets up feed inlet (4), exports (7) down and goes up export (5), its characterized in that on the shell: the screening mechanism comprises a screen (6) which is enclosed into a cylinder shape and a screw shaft (9) which is vertically arranged in the screen (6), and the screw shaft (9) is provided with a helical blade (10);

an upper clapboard (13) and a lower clapboard (16) are arranged in the shell, the screen (6) is arranged between the upper clapboard (13) and the lower clapboard (16), and the upper clapboard (13), the lower clapboard (16) and the screen (6) divide the cavity in the shell into a feeding area (18) positioned below the lower clapboard (16), a coarse powder area (19) positioned above the upper clapboard (13) and a fine powder area (14) positioned outside the screen (6) and between the upper clapboard (13) and the lower clapboard (16); the cavity inside the screen (6) is a screening channel (15), and the screening channel (15) is respectively communicated with the feeding area (18) and the coarse powder area (19);

the feed inlet (4) is communicated with a feed area (18) and is positioned at the lower part of the shell; the lower outlet (7) is arranged at the bottom of the fine powder area (14) and is positioned at the lower part of the shell; the upper outlet (5) is communicated with the coarse powder area (19) and is positioned at the upper part of the shell;

when the screen is rotated, the fine powder is screened to the fine powder area (14) by the screen (6) and flows out from the lower outlet (7), and the coarse powder is intercepted in the screening channel (15) by the screen (6), is upwards conveyed to the coarse powder area (19) along with the spiral blade (10) and flows out from the upper outlet (5).

2. The vertical rotary screen of claim 1, wherein: a plurality of baffles (17) are axially arranged on the helical blades (10) of the screw shaft (9), and the inner edges of the baffles (17) have a certain distance with the outer peripheral surface of the central shaft of the screw shaft (9).

3. The vertical rotary screen of claim 1, wherein: the lower baffle (16) is inclined downwardly towards the lower outlet (7).

4. The vertical rotary screen of claim 1, wherein: the shell comprises a lower shell (2) and an upper shell (3), a lower clapboard (16) is arranged at the upper end part of the lower shell (2) and inclines downwards towards a lower outlet (7), and a feeding hole (4) is positioned at one side of the lower clapboard (16) at a high position and inclines downwards.

5. The vertical rotary screen of claim 1, wherein: the upper baffle plate (13) is arranged in a downward inclined way, and the upper outlet (5) is positioned on one side of the lower position of the upper baffle plate (13).

6. The vertical rotary screen according to claim 1 or 5, wherein: the lower edge of the upper outlet (5) is flush with the upper baffle plate (13) or lower than the upper baffle plate (13).

7. The vertical rotary screen of claim 1, wherein: the lower edge of the lower outlet (7) is flush with the lower clapboard (16) or lower than the lower clapboard (16).

8. The vertical rotary screen of claim 1, wherein: the center of the lower clapboard (16) is provided with a lower sleeve (11), and the feed inlet (4) is downwards inclined and extends into the inner cavity of the lower sleeve (11); an upper sleeve (12) is arranged in the center of the upper partition plate (13), the upper sleeve (12) is positioned on the wall surface of the coarse powder area (19) and is provided with an opening (22) corresponding to the upper outlet (5); two ends of the screen (6) are respectively sleeved on the lower end part of the upper sleeve (12) and the upper end part of the lower sleeve (11).

9. The vertical rotary screen of claim 8, wherein: the lower shell (2), the lower sleeve (11) and the lower partition plate (16) are integrally formed.

10. The vertical rotary screen of claim 8, wherein: the upper shell (3), the upper sleeve (12) and the upper partition plate (13) are integrally formed.