CN213001146U

CN213001146U - Dustless vibrating screen

Info

Publication number: CN213001146U
Application number: CN202021800364.5U
Authority: CN
Inventors: 胡义; 胡小正; 胡丹阳
Original assignee: Beijing Zhongjian Ruite New Material Co Ltd
Current assignee: Beijing Zhongjian Ruite New Material Co Ltd
Priority date: 2020-08-25
Filing date: 2020-08-25
Publication date: 2021-04-20
Anticipated expiration: 2030-08-25

Abstract

The application relates to a dust-free vibrating screen, which comprises a vibrating screen body; the vibrating screen comprises a vibrating screen body and a vibrating motor, wherein the vibrating screen body comprises a base fixedly connected to a rack, a plurality of springs vertically arranged on the base, a frame body arranged at one end, away from the base, of each spring and with openings at two ends, a screen arranged at an opening at the upper end of the frame body, a screen disc arranged at an opening at the lower end of the frame body, a vibrating body which is fixedly connected to one surface, away from the screen, of the screen disc and is hollow inside, and the vibrating; the dust-free vibrating screen also comprises a dust cover which covers the opening at the upper end of the frame body; the side of the dust cover is provided with a feed inlet for feeding materials into the vibrating screen body, and the feed inlet is provided with a closed door for sealing the feed inlet. This application has the content that reduces dust in the screening process, improves staff's operational environment's advantage.

Description

Dustless vibrating screen

Technical Field

The application relates to the field of screening equipment, in particular to a dust-free vibrating screen.

Background

At present, the working principle of a vibrating screen is that reciprocating rotary type vibration generated by vibration excitation of a vibrator is utilized to drive a screen to vibrate, when the vibrating screen works, an upper rotary heavy hammer of the vibrator enables a screen surface to generate plane rotary vibration, a lower rotary heavy hammer enables the screen surface to generate conical rotary vibration, and the combined effect of the upper rotary heavy hammer and the lower rotary heavy hammer enables the screen surface to generate repeated rotary type vibration, so that materials on the screen are thrown up, components with smaller particles in the materials are discharged from an outlet through the screen, and the screening effect on the materials is achieved; the vibrating screen is used as an efficient screening device and widely applied to multiple industries such as mines, coal, chemical industry and food, for example, a flour mill can screen flour by using the vibrating screen to remove larger particles in the flour and improve the quality of the flour.

In the related technology, the vibrating screen body mainly comprises a base, a plurality of springs vertically arranged on the base, a frame body which is arranged at one end of each spring, which is far away from the base, and is provided with openings at two ends, a screen cloth arranged at an opening at the upper end of the frame body, a screen disc arranged at an opening at the lower end of the frame body, a vibrating body which is fixedly connected to one surface of the screen disc, which is far away from the screen cloth and is hollow inside, and a vibrating motor fixedly connected to a; one surface of the sieve tray facing the sieve screen is an arc surface which is convex upwards from the outer side to the center; a discharge pipe communicated with the cavity in the frame body is arranged on the outer wall of the frame body at a position corresponding to the lowest point of one surface of the sieve tray facing the sieve screen; when the in-service use shale shaker sieved the dust material, start vibrating motor, pour the material on the screen cloth, the body that shakes gives vibrating motor's power transmission to the screen cloth, and then sieves the material on the screen cloth, and the material that the screening was accomplished is fallen on the screen tray and is put to the minimum by the central point of screen tray and collect to discharge from the discharging pipe.

In view of the above-described related art, the inventors consider that the following technical drawbacks exist: when the dust material is actually screened, a certain amount of dust can be inevitably raised in the process of dumping the material onto the screen and screening the material by vibrating the screen, the working environment of workers is deteriorated by the dust particles, and the long-term contact process can also cause certain harm to the bodies of the workers.

SUMMERY OF THE UTILITY MODEL

In order to reduce the content of dust in the screening process, improve staff's operational environment, this application provides a dustless shale shaker.

The application provides a dustless shale shaker adopts following technical scheme:

a dustless vibrating screen comprises a vibrating screen body; the vibrating screen comprises a vibrating screen body and a vibrating motor, wherein the vibrating screen body comprises a base fixedly connected to a rack, a plurality of springs vertically arranged on the base, a frame body arranged at one end, away from the base, of each spring and with openings at two ends, a screen arranged at an opening at the upper end of the frame body, a screen disc arranged at an opening at the lower end of the frame body, a vibrating body which is fixedly connected to one surface, away from the screen, of the screen disc and is hollow inside, and the vibrating; the dust-free vibrating screen also comprises a dust cover which covers the opening at the upper end of the frame body; the side of the dust cover is provided with a feed inlet for feeding materials into the vibrating screen body, and the feed inlet is provided with a closed door for sealing the feed inlet.

Through adopting above-mentioned technical scheme, when screening the dust material in practical application, open vibrating motor, then inwards empty bagged materials through the charge door, likepowder material falls into on the screen cloth through the dust cover, the body that shakes transmits vibrating motor's vibrations for the framework, the framework that sets up on the spring can vibrate in each position, the framework drives screen cloth and real dish vibration, the material that is located on the screen cloth vibrates on the screen cloth, thereby sieve the material, the raise dust that the in-process of reinforced and screening material produced blocks through the dust cover, thereby reduce the content at screening in-process dust, improve staff's operational environment.

Preferably, the dust-free vibrating screen further comprises a dust removal assembly arranged on the dust cover; the dust removal assembly comprises an installation box fixedly connected with the dust cover, an installation plate arranged in the installation box, a dust removal unit arranged on the installation plate, and an exhaust fan arranged outside the installation box and communicated with a cavity in the installation box; the mounting plate divides the space in the mounting box into a vacuum area and a dust removal area; the dust removal area is communicated with the air draft cover, and the exhaust fan is communicated with the vacuum area; the mounting plate is provided with a mounting hole for communicating the vacuum area with the dust removal area; the dust removal unit comprises a cloth bag arranged in the mounting hole.

Through adopting above-mentioned technical scheme, in the raise dust suction dust removal district that the in-process of reinforced and screening material produced, because there is the pressure differential in vacuum area and the dust removal district, therefore the air that has the dust can pass the hole entering vacuum area on the sack, the hole on sack surface can adsorb the filtration to the dust in the air, thereby realize the purification to the air in the dust cover, after the laying dust on sack surface reaches certain thickness, fall into the install bin bottom under shale shaker body vibrations effect, thereby the convenient air that has the dust to the dust cover purifies, reduce the deposit of dust in the dust cover.

Preferably, the dust removal unit further comprises a bag cage; the bag cage comprises a plurality of fixing rings and a plurality of vertical ribs, wherein the axes of the fixing rings are overlapped, and the fixing rings are arranged along the axis direction; the fixing ring and the vertical ribs jointly form a tubular framework of the bag cage; the cloth bag is sleeved on the bag cage and is fixedly connected with the bag cage.

By adopting the technical scheme, the bag cage can support the cloth bag, so that the influence of deformation of the cloth bag on the dust removal effect of the cloth bag under the action of pressure difference is reduced.

Preferably, one end of the mounting port close to the vacuum area is provided with the mounting port; a cover body used for sealing the mounting opening is detachably connected to the mounting opening, and a limiting ring is convexly arranged on the inner side wall of the mounting box, close to the mounting opening; the mounting plate is connected with one surface of the limiting ring facing the mounting opening in an abutting mode.

Through adopting above-mentioned technical scheme, conveniently dismantle the mounting panel to when dust removal unit takes place to damage, follow the trade to dust removal unit.

Preferably, an installation ring which has an outer diameter larger than the diameter of the installation hole and is abutted against the installation plate is coaxially arranged at one end of the dust removal unit located in the vacuum area.

Through adopting above-mentioned technical scheme, make things convenient for the ann of dust removal unit on the mounting panel to tear open, conveniently clear up, maintain and change dust removal unit.

Preferably, one end of the mounting box, which is far away from the vacuum area, is provided with a funnel-shaped dust collection bin, the bottommost end of the dust collection bin is provided with a dust removal port communicated with a cavity in the dust collection bin, and the dust removal port is detachably connected with a sealing cover used for sealing the dust removal port.

Through adopting above-mentioned technical scheme, under the effect of shale shaker body, thereby the sack vibrates thereupon and falls and fall into the dust collection storehouse with laying dust, through a period of use after, unscrew the closing cap of dust collection storehouse bottom and clear up laying dust.

Preferably, a baffle is arranged at the feed inlet of the dust cover.

Through adopting above-mentioned technical scheme, can block the raise dust to improve the dust collection efficiency of dust removal component, reduce the possibility that the raise dust spills over.

Preferably, a support frame is fixedly connected to the position, corresponding to the feed inlet, above the screen in the dust cover, and a feed inlet is formed in the support frame.

Through adopting above-mentioned technical scheme, the support frame can support bagged materials to improve reinforced convenience.

Preferably, an air cannon is fixedly connected to the outer wall of the dust cover, and an air outlet pipe is communicated with an air outlet of the air cannon; the air outlet pipe is communicated with the inner cavity of the dust cover.

Through adopting above-mentioned technical scheme, after the screening is accomplished, open the air bubble, the air bubble spouts the dust excluding hood with the air with the form of pulse in to blow down the dust that adsorbs in the dust cover, in time clear up the dust that adsorbs in the dust excluding hood, thereby reduce the influence of the dust that adsorbs in the dust cover to the product quality.

In summary, the present application includes at least one of the following beneficial technical effects:

1. by arranging the dust cover, the content of dust in the screening process is reduced, and the working environment of workers is improved;

2. by arranging the dust removal assembly, the air with dust in the dust cover can be conveniently purified, and the deposition of the dust in the dust cover is reduced;

3. through setting up the air bubble, in time clear up the dust that adsorbs in the dust excluding hood, reduce the influence of the dust that adsorbs in the dust cover to the product quality.

Drawings

FIG. 1 is a schematic view of a dust free shaker;

FIG. 2 is a sectional view showing an inner structure of a dust-free vibration sieve;

FIG. 3 is an exploded view of the dust extraction assembly;

FIG. 4 is a cross-sectional view showing the structure of the dust removing assembly;

fig. 5 is an exploded view showing the structure of the dust removing unit.

Description of reference numerals: 1. a frame; 2. a vibrating screen body; 20. a base; 21. a spring; 22. a frame body; 220. a discharge pipe; 23. screening a screen; 24. a sieve tray; 25. a vibrator; 26. a vibration motor; 3. a dust cover; 30. a feed inlet; 31. a closing door; 32. a support frame; 320. a feed inlet; 33. a baffle plate; 4. a dust removal assembly; 40. installing a box; 400. an installation port; 401. a cover body; 402. a flange; 403. a limiting ring; 404. a vacuum zone; 405. a dust removal area; 406. an exhaust pipe; 41. mounting a plate; 410. mounting holes; 42. a dust removal unit; 420. a bag cage; 4200. a fixing ring; 4201. erecting ribs; 421. a cloth bag; 422. an end cap; 423. a mounting ring; 43. an exhaust fan; 44. a dust collection bin; 440. a closure cap; 5. a cylinder; 6. an air cannon; 60. and an air outlet pipe.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses dustless shale shaker. Referring to fig. 1 and 2, the dust-free vibrating screen comprises a frame 1, a vibrating screen body 2 arranged below the frame 1, a dust cover 3 arranged on the frame 1 and matched with the vibrating screen body, and a dust removing assembly 4 arranged on the dust cover 3; the vibrating screen body comprises a base 20 fixedly connected to the frame 1, a plurality of springs 21 vertically arranged on the base 20, a frame body 22 arranged at one end of the spring 21, which is far away from the base 20, and with openings at two ends, a screen 23 arranged at an opening at the upper end of the frame body 22, a screen disc 24 arranged at an opening at the lower end of the frame body 22, a vibrating body 25 fixedly connected to one surface of the screen disc 24, which is far away from the screen 23 and is hollow inside, and a vibrating motor 26 fixedly connected to the cavity of the vibrating body 25; one surface of the sieve tray 24 facing the sieve 23 is an arc surface which is convex upwards from the outer side to the center; a discharge pipe communicated with the cavity in the frame body 22 is arranged on the outer wall of the frame body 22 at a position corresponding to the lowest point of one surface of the sieve tray 24 facing the sieve mesh 23; the dust cover 3 is covered at the opening at the upper end of the frame body 22 and is fixedly connected with the frame 1; a charging opening 30 for charging into the vibrating screen body is formed in the side surface of the dust cover 3, and a sealing door 31 for sealing the charging opening 30 is arranged on the charging opening 30; in order to facilitate the opening and closing of the sealing part, the upper side of the sealing door 31 is hinged with the charging opening 30, air cylinders 5 for pushing the sealing door 31 to open and close are arranged on the dust cover 3 and positioned at two sides of the sealing door 31, the output end of each air cylinder 5 is hinged with the cover body 401, and one end of each air cylinder 5, which is far away from the output end, is hinged with the dust cover 3; in order to facilitate feeding into the vibrating screen body, a support frame 32 is fixedly connected to a position corresponding to the feeding port 30 above the screen 23 in the dust cover 3, and a feeding port 320 is arranged on the support frame 32.

Referring to fig. 3 and 4, the dust removing assembly 4 includes a mounting box 40 vertically disposed and fixedly connected to the dust cover 3, a mounting plate 41 disposed in the mounting box 40 and detachably connected to the mounting box 40, a dust removing unit 42 disposed on the mounting plate 41, and an exhaust fan 43 disposed outside the mounting box 40 and communicated with the inner cavity of the mounting box 40; the upper end of the installation box 40 is provided with an installation opening 400, a cover body 401 for sealing the installation opening 400 is arranged at the installation opening 400, and the cover body 401 and the installation opening 400 can be fixed through a flange 402; a limiting ring 403 is convexly arranged on the inner side wall of the installation box 40 close to the installation opening 400; the mounting plate 41 abuts against one surface of the limit ring 403 facing the mounting opening 400; the mounting plate 41 divides the space in the mounting box 40 into a vacuum area 404 and a dust removing area 405 located below the vacuum area 404; a plurality of mounting holes 410 for communicating the vacuum area 404 with the dust removal area 405 are formed on the mounting plate 41; the dust removing unit 42 is disposed in the mounting hole 410.

Referring to fig. 5, the dust removing unit 42 includes a bag cage 420 and a cloth bag 421; the bag cage 420 comprises a plurality of fixing rings 4200 which have coincident axes and are arranged along the axial direction, and a plurality of vertical ribs 4201 which are parallel to the axial direction of the fixing rings 4200 and are arranged along the circumference of the fixing rings 4200; the fixing ring 4200 and the vertical ribs 4201 together form a tubular framework of the bag cage 420; the cloth bag 421 is sleeved on the bag cage 420 and is fixedly connected with the bag cage 420; the dust removal unit 42 is inserted into the mounting hole 410, two ends of the dust removal unit 42 are respectively located in the vacuum area 404 and the dust removal area 405, and one end of the dust removal unit 42 located in the dust removal area 405 is fixedly connected with an end cover 422 for sealing the end face of the bag cage 420; a mounting ring 423 having an outer diameter larger than that of the mounting hole 410 and abutting against the mounting plate 41 is coaxially provided at one end of the dust removing unit 42 located in the vacuum area 404.

Referring to fig. 3 and 4, suction fan 43 is fixedly attached to cover 401 and is in communication with vacuum area 404 within mounting box 40; an exhaust pipe 430 communicated with the dust removal area 405 in the installation box 40 is fixedly connected to the outer wall of the installation box 40, and one end of the exhaust pipe 430, which is far away from the installation box 40, is communicated with the inner cavity of the dust cover 3; a funnel-shaped dust collection bin 44 is arranged at one end of the installation box 40, which is far away from the cover body 401, a dust removal port communicated with a cavity inside the dust collection bin 44 is arranged at the bottommost end of the dust collection bin 44, and a sealing cover 440 for sealing the dust removal port is arranged on the dust removal port, and a threaded connection mode can be adopted; in order to improve the dust removing efficiency of the dust removing assembly 4 and reduce the possibility of overflowing of the dust, a baffle 33 is arranged at the feeding port 30 of the dust cover 3.

After the dust cover 3 is used for a long time, although the exhaust fan 43 can exhaust most of the raised dust, a part of the raised dust may be adsorbed on the inner wall of the exhaust hood due to electrostatic action and deposited on the inner wall of the exhaust hood, and mildew may occur after deposition of the raised dust, and when food such as flour is filtered, the raised dust may fall into the screen 23 to affect the quality of the food.

Referring to fig. 1, in order to facilitate timely cleaning of dust adsorbed on the inner wall of the dust cover 3, an air cannon 6 is fixedly connected to the outer wall of the dust cover 3, specifically, a welded connection mode can be adopted, and an air outlet pipe 60 is communicated with an air outlet of the air cannon 6; the air outlet pipe 60 is communicated with the inner cavity of the dust cover 3.

The implementation principle of a dustless shale shaker of this application embodiment does: in practical application, when dust materials are screened, the vibration motor 26 and the exhaust fan 43 are started, bagged materials are placed on the support frame 32 through the feeding port 30, then the bagged materials are poured inwards through the feeding port 30 on the support frame 32, powdery materials fall onto the screen 23 through the dust cover 3, the vibration of the vibration motor 26 is transmitted to the frame body 22 through the vibration body 25, the frame body 22 arranged on the spring 21 can vibrate in all directions, the frame body 22 drives the screen 23 and the solid disc to vibrate, the materials on the screen 23 vibrate on the screen 23, so that the materials are screened, the screened powdery materials fall onto the screen disc 24 and are collected at the lowest point of the screen disc 24, and the screen disc 24 enables the powdery materials to be discharged from the discharge port in the vibration process; the dust generated in the feeding and screening process is pumped into the dust removing area 405 through the exhaust pipe 430, because of the pressure difference between the vacuum area 404 and the dust removing area 405, the air with dust can pass through the holes on the cloth bag 421 and enter the vacuum area 404, the holes on the surface of the cloth bag 421 can absorb and filter the dust in the air, thereby realizing the purification of the air in the dust cover 3, when the dust on the surface of the cloth bag 421 reaches a certain thickness, the cloth bag 421 vibrates along with the dust to vibrate the dust into the dust collecting bin 44 under the action of the vibrating screen body, and after a period of use, the sealing cover 440 at the bottom of the dust collecting bin 44 is screwed off to clean the dust; when the dust removal unit 42 is damaged or the accumulated dust is attached to the cloth bag 421 and is difficult to fall off, the bolts on the flange 402 are taken down, then the cover body 401 is opened, and the dust removal unit 42 is pulled out from the mounting opening 400 for cleaning, maintenance or replacement; after screening is finished, the air cannon 6 is opened, and the air cannon 6 sprays air into the dust hood in a pulse mode, so that dust adsorbed in the dust hood 3 is blown down, and the influence of the dust adsorbed in the dust hood 3 on the product quality is reduced; to sum up, through setting up dust cover 3, reduce the content of dust in the screening process, improved staff's operational environment.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A dustless vibrating screen comprises a vibrating screen body; the vibrating screen comprises a vibrating screen body and a vibrating screen, wherein the vibrating screen body comprises a base (20) fixedly connected to a rack (1), a plurality of springs (21) vertically arranged on the base (20), a frame body (22) arranged at one end, deviating from the base (20), of each spring (21) and with openings at two ends, a screen mesh (23) arranged at an opening at the upper end of each frame body (22), a screen disc (24) arranged at an opening at the lower end of each frame body (22), a vibrating body (25) fixedly connected to one surface, deviating from the screen mesh (23), of each screen disc (24) and with a hollow inner part, and a vibrating motor (26) fixedly connected; the method is characterized in that: the dust-free vibrating screen also comprises a dust cover (3) which covers the opening at the upper end of the frame body (22); a feed inlet (30) used for feeding materials into the vibrating screen body is formed in the side face of the dust cover (3), and a sealing door (31) used for sealing the feed inlet (30) is arranged on the feed inlet (30).

2. A dust-free shaker as claimed in claim 1, wherein: the dust-free vibrating screen also comprises a dust removal component (4) arranged on the dust cover (3); the dust removal assembly (4) comprises an installation box (40) fixedly connected with the dust cover (3), an installation plate (41) arranged in the installation box (40), a dust removal unit (42) arranged on the installation plate (41), and an exhaust fan (43) arranged outside the installation box (40) and communicated with a cavity in the installation box (40); the mounting plate (41) divides the space in the mounting box (40) into a vacuum area (404) and a dust removal area (405); the dust removal area (405) is communicated with the air draft cover, and the exhaust fan (43) is communicated with the vacuum area (404); the mounting plate (41) is provided with a mounting hole (410) for communicating the vacuum area (404) with the dust removal area (405); the dust removal unit (42) comprises a cloth bag (421) arranged in the mounting hole (410).

3. A dust-free shaker as claimed in claim 2, wherein: the dust extraction unit (42) further comprises a bag cage (420); the bag cage (420) comprises a plurality of fixing rings (4200) with coincident axes and arranged along the axes direction and a plurality of vertical ribs (4201) which are parallel to the axes direction of the fixing rings (4200) and arranged along the circumference of the fixing rings (4200); the fixing ring (4200) and the vertical ribs (4201) jointly form a tubular framework of the bag cage (420); the cloth bag (421) is sleeved on the bag cage (420) and is fixedly connected with the bag cage (420).

4. A dust-free shaker as claimed in claim 3, wherein: a mounting port (400) is arranged at one end of the mounting port (400) close to the vacuum area (404); a cover body (401) used for sealing the mounting opening (400) is detachably connected to the mounting opening (400), and a limiting ring (403) is convexly arranged on the inner side wall of the mounting box (40) close to the mounting opening (400); the mounting plate (41) is in contact with one surface of the limit ring (403) facing the mounting opening (400).

5. A dust-free vibrating screen as claimed in claim 4, wherein: and a mounting ring (423) which is larger than the diameter of the mounting hole (410) in outer diameter and is abutted against the mounting plate (41) is coaxially arranged at one end of the dust removal unit (42) positioned in the vacuum area (404).

6. A dust-free shaker as claimed in claim 2, wherein: one end of the mounting box (40) departing from the vacuum area (404) is provided with a funnel-shaped dust collection bin (44), the bottommost end of the dust collection bin (44) is provided with a dust removal port communicated with a cavity inside the dust collection bin (44), and the dust removal port is detachably connected with a sealing cover (440) used for sealing the dust removal port.

7. A dust-free shaker as claimed in claim 1, wherein: a baffle (33) is arranged at the feed inlet (30) of the dust cover (3).

8. A dust-free shaker as claimed in claim 1, wherein: a support frame (32) is fixedly connected with the position, corresponding to the feed inlet (30), above the screen (23) in the dust cover (3), and a feed inlet (320) is arranged on the support frame (32).

9. A dust-free vibrating screen as claimed in claim 1 or 2, wherein: an air cannon (6) is fixedly connected to the outer wall of the dust cover (3), and an air outlet pipe (60) is communicated with an air outlet of the air cannon (6); the air outlet pipe (60) is communicated with the inner cavity of the dust cover (3).