CN112474302B

CN112474302B - Self-cleaning vibrating screen

Info

Publication number: CN112474302B
Application number: CN202011439918.8A
Authority: CN
Inventors: 赵广林
Original assignee: Guangdong Zhongxiang Environmental Protection Building Materials Co ltd
Current assignee: Guangdong Zhongxiang Environmental Protection Building Materials Co ltd
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2022-05-03
Anticipated expiration: 2040-12-10
Also published as: CN112474302A

Abstract

The invention provides a self-cleaning vibrating screen which comprises a rack, wherein the top end part of the rack is connected with a screen frame through an elastic telescopic rod, a vibrator is arranged on the screen frame, an inclined screen piece and an electromagnet for adsorbing the screen piece are arranged inside the screen frame, the screen piece is in sliding connection with the screen frame on a vertical surface, a plurality of air pipes are equidistantly distributed below the screen piece, a plurality of air injection heads which are opposite to the screen piece are equidistantly distributed on the air pipes, the air injection heads are set to inject air flow towards the screen piece at intervals, the screen piece can move along the vertical surface under the action of the air flow injected by the air injection heads, a gas collecting hood is arranged above the screen piece, a fan is arranged in the gas collecting hood, and the gas collecting hood is communicated with an air flow reducer through an air flow buffer pipe. The invention can automatically clean the screen.

Description

Self-cleaning vibrating screen

Technical Field

The invention relates to the field of vibrating screens, in particular to a self-cleaning vibrating screen.

Background

The construction waste refers to the general name of waste such as dregs, waste concrete, waste bricks and stones generated in the activities of people in demolition, construction, repair and the like, the quantity of the construction waste generated in the construction is continuously increased along with the rapid development of the infrastructure construction of China, and the construction waste needs to be recycled in order to realize energy conservation and environmental protection. In the recycling industry of construction wastes, a crusher is often adopted to crush the construction wastes and then transfer the construction wastes into a brick making process, and because the crushed construction wastes have different particle sizes, a vibrating screen is required to screen the construction wastes with different diameters. However, after the existing vibrating screen is used for a long time, screen holes on the vibrating screen are gradually blocked by construction waste to be blocked, so that the working efficiency of the vibrating screen is low, and the screen needs to be cleaned regularly. At present, a manual regular cleaning mode is generally adopted, but the mode is high in labor intensity.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides a self-cleaning vibrating screen which can automatically clean a screen.

The invention adopts the following technical scheme.

The utility model provides a shale shaker of automatically cleaning, includes the frame, the top portion of frame is connected with the reel through elastic expansion link, be equipped with the vibrator on the reel, the inside of reel is equipped with the screen cloth spare that is the slope form and is used for adsorbing the electro-magnet of living screen cloth spare, screen cloth spare on vertical face with reel looks sliding connection, the below equidistance of screen cloth spare distributes and has a plurality of trachea, the equidistance distributes on the trachea and just to the air jet head of screen cloth spare, air jet head is set for towards screen cloth spare jet stream at the interval ground, screen cloth spare can follow vertical face motion under the effect of the air current that air jet head jetted, the top of screen cloth spare is equipped with the gas collecting channel, be equipped with the fan in the gas collecting channel, the gas collecting channel has air flow reducer through air current buffer tube intercommunication.

Further, the airflow speed reducer comprises an inner barrel, an outer barrel sleeved on the outer side of the inner barrel, and a shell sleeved on the outer side of the outer barrel, wherein an airflow channel spirally extending along the axial direction is formed between the outer side wall of the inner barrel and the inner side wall of the outer barrel, the top end portion of the airflow channel is communicated with an airflow buffer tube, the cross section of the airflow channel is larger than that of the airflow buffer tube, the bottom end portion of the airflow channel extends to the inner bottom portion of the shell and is communicated with the inner bottom portion of the shell, and a plurality of airflow dispersion tubes for connecting the inside of the shell and the outside are arranged on the side wall of the shell.

Furthermore, a plurality of airflow dispersion pipes are equidistantly distributed along the circumference of the shell at intervals, and the airflow dispersion pipes are bent by 180 degrees.

Further, the bottom end of the shell is provided with a discharge hole, and a dust exhaust valve is arranged at the discharge hole.

Further, be equipped with the guide rail that parallels with the length direction of screen cloth spare on the screen cloth spare, sliding connection has the slide on the guide rail, the last roll connection of rotating of slide has the roller, the cover is equipped with the cylinder on the lateral wall of roller, evenly distributed has a plurality of broach that act on the screen cloth spare on the lateral wall of cylinder, be equipped with the fin on the slide, the length direction of fin is mutually perpendicular with the length direction of guide rail.

Furthermore, a first elastic piece is arranged between the sliding seat and the end part of the guide rail.

Further, the screen mesh piece includes the frame and locates the screen mesh in the frame.

Furthermore, the inner side wall of the screen frame is provided with a guide pillar extending along the vertical surface, and the frame body is provided with a guide hole matched with the guide pillar.

Further, a second elastic piece is arranged between the frame body and the screen frame.

The invention has the beneficial effects that:

the invention provides a self-cleaning vibrating screen which comprises a rack, wherein the top end part of the rack is connected with a screen frame through an elastic telescopic rod, a vibrator is arranged on the screen frame, an inclined screen piece and an electromagnet for adsorbing the screen piece are arranged inside the screen frame, the screen piece is in sliding connection with the screen frame on a vertical surface, a plurality of air pipes are equidistantly distributed below the screen piece, a plurality of air injection heads which are opposite to the screen piece are equidistantly distributed on the air pipes, the air injection heads are set to inject air flow towards the screen piece at intervals, the screen piece can move along the vertical surface under the action of the air flow injected by the air injection heads, a gas collecting hood is arranged above the screen piece, a fan is arranged in the gas collecting hood, and the gas collecting hood is communicated with an air flow reducer through an air flow buffer pipe. When the vibrator operates, the electromagnet adsorbs the screen mesh, and displacement between the screen mesh and the screen frame is avoided. After the vibrator stop motion, the air jet head sprays the screen cloth spare with the air current interlude ground, and the produced air current of air jet head not only can directly blow off the plug on the screen cloth spare to can make screen cloth spare follow vertical direction repetitive motion, thereby make screen cloth spare constantly receive the percussion of reel and hit and produce the vibration, be favorable to further clearing up the barrier on the screen cloth spare. In addition, the fine particles blown up by the air nozzle are collected by the gas collecting hood, and are precipitated in the airflow speed reducer after being decelerated by the airflow buffer tube and the airflow speed reducer, so that the collection of the fine particles in the construction waste is facilitated.

Drawings

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

Fig. 1 is a schematic structural diagram of the present embodiment.

Description of reference numerals:

a frame 1, an elastic telescopic rod 2, a screen frame 3, a vibrator 4, a frame body 51, a screen 52 and an electromagnet 6,

the air tube 71, the air jet head 72,

a gas-collecting hood 8, a fan 9, an airflow buffer tube 10,

an inner cylinder 111, an outer cylinder 112, a shell 113, an airflow channel 114, an airflow dispersion pipe 115, a dust exhaust valve 116,

the length of the guide rail 12, the slide 13,

a roller shaft 14, a roller 15, comb teeth 16, fins 17, a first elastic member 18, a guide post 19 and a second elastic member 20.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for a better understanding of the present embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent actual product dimensions.

It will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The technical solution of the present invention is further described below with reference to the accompanying drawings and examples.

The self-cleaning vibrating screen comprises a frame 1, wherein the top end part of the frame 1 is connected with a screen frame 3 through an elastic telescopic rod 2, a vibrator 4 is arranged on the screen frame 3, an inclined screen piece and an electromagnet 6 used for adsorbing the screen piece are arranged inside the screen frame 3, the screen piece is in sliding connection with the screen frame 3 on a vertical surface, a plurality of air pipes 71 are equidistantly distributed below the screen piece, a plurality of air nozzles 72 which are opposite to the screen piece are equidistantly distributed on the air pipes 71, the air nozzles 72 are set to jet air flow towards the screen piece at intervals, the screen piece can move along the vertical surface under the action of the air flow jetted by the air nozzles 72, a gas collecting hood 8 is arranged above the screen piece, a fan 9 is arranged in the gas collecting hood 8, and the gas collecting hood 8 is communicated with an air flow reducer through an air flow buffer pipe 10.

Preferably, the airflow reducer includes an inner cylinder 111, an outer cylinder 112 sleeved outside the inner cylinder 111, and a casing 113 sleeved outside the outer cylinder 112, an airflow channel 114 spirally extending along an axial direction is formed between an outer side wall of the inner cylinder 111 and an inner side wall of the outer cylinder 112, a top end portion of the airflow channel 114 is communicated with the airflow buffer tube 10, a cross section of the airflow channel 114 is larger than a cross section of the airflow buffer tube 10, a bottom end portion of the airflow channel 114 extends to an inner bottom portion of the casing 113 and is communicated with the inner bottom portion of the casing 113, a plurality of airflow dispersion pipes 115 connecting the inside and the outside of the casing 113 are arranged on a side wall of the casing 113, the plurality of airflow dispersion pipes 115 are equidistantly distributed along a circumference of the casing 113, the airflow dispersion pipes 115 are bent at 180 degrees, a discharge port is formed at the bottom end portion of the casing 113, and a dust exhaust valve 116 is arranged at the discharge port. The fine particles blown up by the air nozzle 72 are collected by the gas collecting hood 8, and are precipitated at the inner bottom of the shell 113 after being decelerated by the airflow buffer tube 10 and the airflow channel 114, and when the fine particles precipitated at the inner bottom of the shell 113 reach a certain amount, the fine particles can be recovered by opening the dust exhaust valve 116 at the discharge port.

Preferably, be equipped with the guide rail 12 that parallels with the length direction of screen cloth spare on the screen cloth spare, sliding connection has slide 13 on guide rail 12, sliding connection has roller 14 on the slide 13, the cover is equipped with cylinder 15 on the lateral wall of roller 14, evenly distributed has a plurality of broach 16 that act on the screen cloth spare on the lateral wall of cylinder 15, be equipped with fin 17 on the slide 13, the length direction of fin 17 is mutually perpendicular with the length direction of guide rail 12, be equipped with first elastic component 18 between the tip of slide 13 and guide rail 12. The air flow generated by the air jets 72 passes over the surface of the fins 17, causing the fins 17 to move along the rails 12, thereby causing the roller 15 to roll over the surface of the screen member, causing the comb teeth 16 on the roller 15 to clean the screen holes on the screen member. After the air jet head 72 stops the jet air flow, the first elastic member 18 restores the slide carriage 13 to the original position, and the roller 15 rolls over the surface of the screen member again, thereby cleaning the screen holes of the screen member again. The first elastic member 18 may employ a spring.

Preferably, the screen member includes a frame 51 and a screen 52 provided in the frame 51.

Preferably, the inner side wall of the screen frame 3 is provided with a guide post 19 extending along the vertical surface, and the frame body 51 is provided with a guide hole matched with the guide post 19.

Preferably, the second elastic member 20 is provided between the frame body 51 and the screen frame 3. The second elastic member 20 may employ a spring.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A self-cleaning vibrating screen comprises a frame, wherein the top end part of the frame is connected with a screen frame through an elastic telescopic rod, and a vibrator is arranged on the screen frame; the screen piece is provided with a guide rail parallel to the length direction of the screen piece, the guide rail is connected with a sliding seat in a sliding manner, the sliding seat is connected with a roller shaft in a rotating manner, the outer side wall of the roller shaft is sleeved with a roller, a plurality of comb teeth acting on the screen piece are uniformly distributed on the outer side wall of the roller, the sliding seat is provided with a wing piece, and the length direction of the wing piece is vertical to the length direction of the guide rail; a first elastic piece is arranged between the sliding seat and the end part of the guide rail; the produced air current of air nozzle makes the fin along the motion of guide rail through the surface of fin to drive the cylinder and roll the surface of sieve net spare, thereby after the air nozzle stopped to spray the air current, first elastic component made the slide resume to the normal position thereby drive the cylinder roll the surface of sieve net spare once more.

2. The self-cleaning vibrating screen as recited in claim 1, wherein the airflow reducer comprises an inner cylinder, an outer cylinder sleeved outside the inner cylinder, and a housing sleeved outside the outer cylinder, wherein an airflow channel spirally extending along an axial direction is formed between an outer side wall of the inner cylinder and an inner side wall of the outer cylinder, a top end portion of the airflow channel is communicated with the airflow buffer tube, a cross section of the airflow channel is larger than a cross section of the airflow buffer tube, a bottom end portion of the airflow channel extends to an inner bottom of the housing and is communicated with the inner bottom of the housing, and a plurality of airflow dispersing pipes connecting an inside of the housing and an outside are disposed on a side wall of the housing.

3. A self-cleaning shaker as claimed in claim 2, wherein the plurality of air dispersion tubes are equally spaced around the circumference of the housing, the air dispersion tubes being bent 180 degrees.

4. A self-cleaning vibrating screen as claimed in claim 2, wherein the bottom end of the housing is provided with a discharge outlet, and the discharge outlet is provided with a dust valve.

5. A self-cleaning vibratory screen as claimed in claim 1, wherein the screen elements include a frame and a screen disposed within the frame.

6. A self-cleaning vibrating screen as claimed in claim 5, wherein the inner side wall of the screen frame is provided with guide posts extending along the vertical surface, and the frame body is provided with guide holes for engaging with the guide posts.

7. A self cleaning vibrating screen as claimed in claim 6, wherein a second resilient member is provided between the frame body and the screen frame.