Square swinging screen feeding pre-screening device

Abstract

The utility model discloses a square swinging screen feeding pre-screening device, which belongs to the technical field of screening equipment and comprises a lower end connecting seat used for being connected with a square swinging screen, the top of the lower end connecting seat is connected with a fine particle temporary storage barrel, and the periphery of the fine particle temporary storage barrel is communicated with a fine particle discharging pipe. The top of the fine particle temporary storage barrel communicates with a coarse particle temporary storage barrel, the periphery of the coarse particle temporary storage barrel communicates with a coarse particle discharging pipe, a transverse rod is welded to the vertical inner wall of the coarse particle temporary storage barrel, a motor is installed on the side face of the transverse rod, and an output shaft of the motor is connected with a driving fluted disc through a coupler; a conical limiting seat is installed on the inner bottom wall of the fine particle temporary storage barrel, a rotary air inlet pipe is rotationally connected into the conical limiting seat, and the square swinging screen feeding pre-screening device improves the net cleaning and anti-blocking capacity, the material flow speed is increased, the effective screening area is increased, and the overall screening efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to screening equipment technical field, especially a square swing screen feed pre -screening device. BACKGROUND

[0002] Square swing screen is a kind of common screening equipment, is widely used in chemical industry, food, mining and other industries.Before material enters square swing screen and carries out formal screening, large particle impurities, caked material etc. can be contained in material, if not pre -treatment, these large particle substances will directly enter square swing screen, not only will increase the working load of square swing screen, reduce screening efficiency, the traditional square swing screen feed pre -screening device can satisfy basic screening demand, but the ability of cleaning net and preventing blockage is weak, material flow rate slows down, effective screening area reduces, reduces the overall screening efficiency.

[0003] Through the retrieval, china patent document (grant announcement number CN222385321U), the utility model discloses square swing screen feed pre -screening device, including lower end connecting seat, the lower end connecting seat is conical structure, the lower end connecting seat's lower end opening inside is provided with the spreader, this square swing screen feed pre -screening device, simple structure, easy installation can carry out pre -screening to the raw material that enters the inside of square swing screen, improve the screening efficiency of square swing screen the device can satisfy basic screening demand, but the ability of cleaning net and preventing blockage is weak, material flow rate slows down, effective screening area reduces, reduces the overall screening efficiency. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a square swing screen feed pre -screening device to solve the problems in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a square swing screen feed pre -screening device, including the lower end connecting seat for being connected with square swing screen, the top of the lower end connecting seat is connected with fine particle buffer bucket, the outer periphery of fine particle buffer bucket is connected with fine particle discharge pipe, the top of fine particle buffer bucket is connected with coarse particle buffer bucket, the outer periphery of coarse particle buffer bucket is connected with coarse particle discharge pipe, the vertical inner wall of coarse particle buffer bucket is welded with crosspiece, the side surface of crosspiece is installed with motor, the output shaft of motor is connected with driving gear plate through coupling, the inner bottom wall of fine particle buffer bucket is installed with conical limit seat, the inside rotation is connected with rotary inlet pipe of conical limit seat;

[0006] The outer periphery of the rotating air inlet pipe is symmetrically communicated with two air supply rods, the top of the two air supply rods is provided with a plurality of air injection ports for air blowing, the end of the rotating air inlet pipe away from the conical limiting seat is communicated with an air supply pipe, the outer periphery of the air supply pipe is mounted with a driven gear disc, the outer periphery of the driven gear disc is meshed and connected with the outer periphery of the driving gear disc, and the side surface of the driven gear disc is mounted with a limiting disc.

[0007] Preferably, the vertical inner wall of the coarse particle buffer barrel is mounted with a metal screen for square swing screen feeding pre-screening, the outer periphery of the air supply pipe is connected with a limiting ring and a protective plate, the limiting ring is arranged below the metal screen, and the protective plate is arranged above the metal screen.

[0008] Preferably, the top of the coarse particle buffer barrel is mounted with a protective cover, the top of the protective cover is connected with a fixing tube, the inside of the fixing tube is mounted with a hollow ring, and the inside of the hollow ring is connected with a compression spring.

[0009] Preferably, one end of the compression spring is connected with a moving ring, the moving ring slides in the inside of the hollow ring, the outer periphery of the hollow ring is provided with a guide groove, and the outer periphery of the moving ring is connected with a moving frame.

[0010] Preferably, one end of the moving frame slides in the inside of the guide groove, the side surface of the moving frame is mounted with a pressing ring, the top of the fixing tube is symmetrically provided with two square grooves, and the inside of the fixing tube is symmetrically provided with two locking grooves.

[0011] Preferably, the bottom of the fine particle buffer barrel is mounted with a vibration assembly, and the top of the lower end connecting seat is mounted with a plurality of vibration spring groups for vibration.

[0012] Preferably, the top of the fixing tube is provided with an air inlet connecting pipe connected with external air supply equipment, and the end of the air inlet connecting pipe is mounted with a locking ring matched with the square groove and the locking groove.

[0013] Compared with the prior art, the technical effects and advantages of the utility model are as follows:

[0014] The square swing screen feeding pre-screening device benefits from the structure of the air supply rod and the air injection port. The gas enters the air supply rod through the air inlet connecting pipe, the air supply pipe and the rotating air inlet pipe, and is finally sprayed out through the air injection port. The air injection port blows and cleans the metal screen, achieving the effect of backflushing. When the motor is started, the motor drives the driving gear disc and the driven gear disc to rotate. The driven gear disc drives the air supply pipe and the rotating air inlet pipe to rotate. The air supply rod drives the air injection port to rotate, which better cleans the metal screen, improves the anti-blocking capacity, and compared with the traditional square swing screen feeding pre-screening device, the structure improves the screen cleaning and anti-blocking capacity, increases the material flow rate, increases the effective screening area, and improves the overall screening efficiency.

[0015] The square swing screen feeding pre-screening device, thanks to the structure of the fixed pipe, connects the air inlet connecting pipe with external air inlet equipment, and the locking ring enters the fixed pipe through the square groove and contacts the extrusion ring, the extrusion ring extrudes the moving ring and the compression spring, when the locking ring completely enters the fixed pipe, the air inlet connecting pipe is rotated, the locking ring enters the locking groove, the compression spring pushes the moving ring, the moving frame and the extrusion ring, the extrusion ring extrudes the locking ring, and the locking ring is fixed, the structure is convenient to disassemble with external equipment, and work efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the following specific embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0017] Figure 1 It is a structural schematic view of the present application;

[0018] Figure 2 It is a sectional view of the present application;

[0019] Figure 3 It is a schematic view of the internal structure of the present application;

[0020] Figure 4 It is a schematic view of the internal structure of the present application; Figure 3 It is an enlarged view of A in the present application;

[0021] Figure 5 It is an enlarged view of B in the present application. Figure 3 It is an enlarged view of B in the present application.

[0022] BRIEF DESCRIPTION OF DRAWINGS

[0023] In the figure: 1, lower end connecting seat; 101, vibration assembly; 102, vibration spring group; 2, fine particle buffer bucket; 201, fine particle discharge pipe; 202, conical limiting seat; 203, rotating air inlet pipe; 204, air vent rod; 205, air injection port; 206, limiting ring; 207, protective plate; 208, air vent pipe; 3, coarse particle buffer bucket; 301, coarse particle discharge pipe; 302, metal screen; 303, protective cover; 304, motor; 305, driving toothed disc; 306, driven toothed disc; 307, limiting disc; 308, cross rod; 4, fixed pipe; 401, hollow ring; 402, compression spring; 403, moving ring; 404, guide groove; 405, moving frame; 406, extrusion ring; 407, square groove; 408, locking groove; 5, air inlet connecting pipe; 501, locking ring. DETAILED DESCRIPTION

[0024] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0025] The connection method can be any existing method, such as bonding, welding, or bolting, depending on the actual needs.

[0026] like Figures 1 to 5 The square gyratory screen feeding pre-screening device shown includes a lower end connecting seat 1 for connecting to the square gyratory screen. The top of the lower end connecting seat 1 is connected to a fine particle buffer tank 2. The outer periphery of the fine particle buffer tank 2 is connected to a fine particle discharge pipe 201. The top of the fine particle buffer tank 2 is connected to a coarse particle buffer tank 3. The outer periphery of the coarse particle buffer tank 3 is connected to a coarse particle discharge pipe 301. A metal screen 302 screens the material. Fine particles enter the fine particle buffer tank 2, and coarse particles are discharged through the coarse particle discharge pipe 301. A crossbar 308 is welded to the vertical inner wall of the coarse particle buffer tank 3. A motor 304 is installed on the side of the crossbar 308. The output shaft of the motor 304 is connected to a drive gear 305 through a coupling. A conical limit seat 202 is installed on the inner bottom wall of the fine particle buffer tank 2. A rotating air inlet pipe 203 is rotatably connected inside the conical limit seat 202.

[0027] Two snorkeling rods 204 are symmetrically connected to the outer periphery of the rotating intake pipe 203. Multiple air jets 205 for blowing air are provided at the top of the two snorkeling rods 204. A snorkeling pipe 208 is connected to the end of the rotating intake pipe 203 away from the conical limiting seat 202. A driven gear 306 is mounted on the outer periphery of the snorkeling pipe 208, and the outer periphery of the driven gear 306 meshes with the outer periphery of the driving gear 305. A limiting plate 307 is mounted on the side of the driven gear 306. Gas passes through the intake connecting pipe 5 and the snorkeling pipe. Air 208 and the rotating air intake pipe 203 enter the ventilation rod 204, and finally are ejected through the jet nozzle 205. The jet nozzle 205 blows and cleans the metal screen 302, achieving the effect of backflushing cleaning. The motor 304 is turned on, and the motor 304 drives the active gear plate 305 and the driven gear plate 306 to rotate. The driven gear plate 306 drives the ventilation pipe 208 and the rotating air intake pipe 203 to rotate. The ventilation rod 204 drives the jet nozzle 205 to rotate, which better cleans the metal screen 302 and improves the anti-clogging ability.

[0028] The vertical inner wall of the coarse particle buffer barrel 3 is provided with a metal screen 302 for square swing screen feeding pre-screening, which is a key component for material screening and has various types such as wire woven screen and punched screen plate, etc. Different screen aperture can separate materials of different particle sizes, and the screen should be selected according to the material characteristics and screening requirements. For example, for high-precision material screening, a screen with uniform aperture and high precision is selected. The outer periphery of the air pipe 208 is connected with a limiting ring 206 and a protective plate 207. The limiting ring 206 is arranged below the metal screen 302, and the protective plate 207 is arranged above the metal screen 302.

[0029] The top of the coarse particle buffer barrel 3 is provided with a protective cover 303, the top of which is provided with a feeding port for materials that need to be screened. The top of the protective cover 303 is connected with a fixed tube 4, the inside of which is provided with a hollow ring 401, the inside of which is connected with a compression spring 402, one end of which is connected with a moving ring 403, which slides in the inside of the hollow ring 401. The outer periphery of the hollow ring 401 is provided with a guide groove 404, and the outer periphery of the moving ring 403 is connected with a moving frame 405, one end of which slides in the inside of the guide groove 404. The side surface of the moving frame 405 is provided with a squeezing ring 406. The top of the fixed tube 4 is provided with two square grooves 407 symmetrically arranged, and the inside of the fixed tube 4 is provided with two locking grooves 408 symmetrically arranged. The top of the fixed tube 4 is provided with an air inlet connecting pipe 5 connected with an external air supply device, and the end of the air inlet connecting pipe 5 is provided with a locking ring 501 used in cooperation with the square grooves 407 and the locking grooves 408. The air inlet connecting pipe 5 is connected with the external air supply device, the locking ring 501 enters the fixed tube 4 through the square grooves 407 and contacts the squeezing ring 406. The squeezing ring 406 squeezes the moving ring 403 and the compression spring 402. When the locking ring 501 completely enters the fixed tube 4, the air inlet connecting pipe 5 is rotated, the locking ring 501 enters the locking groove 408, and the compression spring 402 pushes the moving ring 403, the moving frame 405 and the squeezing ring 406. The squeezing ring 406 squeezes the locking ring 501 to fix it.

[0030] The bottom of the fine particle buffer barrel 2 is provided with a vibration assembly 101, which provides vibration power for the device. The installation position and number of the vibration assembly 101 will affect the vibration mode and effect of the sieve box. Generally, a vibration motor with appropriate power and excitation force is selected according to the size and screening requirements of the device. The top of the lower end connecting seat 1 is provided with a plurality of vibration springs 102 for vibration. The materials to be screened are added to the coarse particle buffer barrel 3, and the vibration assembly 101 is started to drive the fine particle buffer barrel 2 and the coarse particle buffer barrel 3 to vibrate.

[0031] Working principle

[0032] The square swing screen feed pre-screening device, in use, first adds the material needing screening into the coarse particle buffer barrel 3, opens the vibration assembly 101, the vibration assembly 101 drives the fine particle buffer barrel 2 and the coarse particle buffer barrel 3 to vibrate, the metal screen 302 screens the material, the fine particles enter the fine particle buffer barrel 2, the coarse particles are discharged through the coarse particle discharge pipe 301, the fine particles are discharged through the fine particle discharge pipe 201, after a period of time, the air inlet connecting pipe 5 is connected with the external air inlet equipment, the locking ring 501 enters the fixed pipe 4 through the square groove 407 and contacts the extrusion ring 406, the extrusion ring 406 extrudes the moving ring 403 and the compression spring 402, when the locking ring 501 completely enters the fixed pipe 4, the air inlet connecting pipe 5 is rotated, the locking ring 501 enters the locking groove 408, the compression spring 402 pushes the moving ring 403, the moving frame 405 and the extrusion ring 406, the extrusion ring 406 extrudes the locking ring 501, and the locking ring 501 is fixed, the gas enters the air pipe 204 through the air inlet connecting pipe 5, the air pipe 208 and the rotating air inlet pipe 203, and is finally sprayed out through the air outlet 205, the air outlet 205 blows and cleans the metal screen 302, achieves the effect of back flushing cleaning, the motor 304 is opened, the motor 304 drives the driving gear plate 305 and the driven gear plate 306 to rotate, the driven gear plate 306 drives the air pipe 208 and the rotating air inlet pipe 203 to rotate, the air pipe 204 drives the air outlet 205 to rotate, and the metal screen 302 is better cleaned, and the anti-blocking capacity is improved.

[0033] It should be noted that the relational terms herein such as one and two and the like are used only to distinguish one entity or operation from another entity or operation without necessarily requiring or implying any such actual relationship or order between such entities or operations.

[0034] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A square swinging screen feed prescreening device comprising a lower end connection seat (1) for connection with a square swinging screen, characterized in that: The top of the lower end connecting seat (1) is connected with a fine particle buffer barrel (2), the outer periphery of the fine particle buffer barrel (2) is communicated with a fine particle discharge pipe (201), the top of the fine particle buffer barrel (2) is communicated with a coarse particle buffer barrel (3), the outer periphery of the coarse particle buffer barrel (3) is communicated with a coarse particle discharge pipe (301), the vertical inner wall of the coarse particle buffer barrel (3) is welded with a crossbar (308), the side surface of the crossbar (308) is mounted with a motor (304), the output shaft of the motor (304) is connected with a driving gear disc (305) through a shaft coupling, the inner bottom wall of the fine particle buffer barrel (2) is mounted with a conical limiting seat (202), the inside of the conical limiting seat (202) is rotatably connected with a rotating air inlet pipe (203); The outer periphery of the rotating air inlet pipe (203) is symmetrically communicated with two air pipes (204), the top of the two air pipes (204) is provided with a plurality of air injection ports (205) for air blowing, one end of the rotating air inlet pipe (203) away from the conical limiting seat (202) is communicated with an air pipe (208), the outer periphery of the air pipe (208) is mounted with a driven gear disc (306), the outer periphery of the driven gear disc (306) is meshingly connected with the outer periphery of the driving gear disc (305), the side surface of the driven gear disc (306) is mounted with a limiting disc (307).

2. A square swing screen feed prescreening device according to claim 1, characterized in that: The vertical inner wall of the coarse particle buffer barrel (3) is mounted with a metal screen (302) for square swinging screen feeding and pre-screening, the outer periphery of the air pipe (208) is connected with a limiting ring (206) and a protective plate (207), the limiting ring (206) is arranged below the metal screen (302), and the protective plate (207) is arranged above the metal screen (302).

3. A square swing screen feed prescreening device according to claim 1, characterized in that: The top of the coarse particle buffer barrel (3) is mounted with a protective cover (303), the top of the protective cover (303) is connected with a fixed pipe (4), the inside of the fixed pipe (4) is mounted with a hollow ring (401), and the inside of the hollow ring (401) is connected with a compression spring (402).

4. A square swing screen feed prescreening device according to claim 3, characterized in that: One end of the compression spring (402) is connected with a moving ring (403), the moving ring (403) slides in the inside of the hollow ring (401), the outer periphery of the hollow ring (401) is provided with a guide groove (404), and the outer periphery of the moving ring (403) is connected with a moving frame (405).

5. A square swing screen feed prescreening apparatus according to claim 4, characterized in that: One end of the moving frame (405) slides in the inside of the guide groove (404), the side surface of the moving frame (405) is mounted with a squeezing ring (406), the top of the fixed pipe (4) is symmetrically provided with two square grooves (407), and the inside of the fixed pipe (4) is symmetrically provided with two locking grooves (408).

6. A square swing screen feed prescreening device as claimed in claim 1, characterized in that: The bottom of the fine particle buffer barrel (2) is mounted with a vibration assembly (101), and the top of the lower end connecting seat (1) is mounted with a plurality of vibration spring groups (102) for vibration.

7. A square swing screen feed prescreening device as claimed in claim 3, wherein: The top of the fixed pipe (4) is provided with an air inlet connecting pipe (5) connected with an external ventilation device, and the end of the air inlet connecting pipe (5) is provided with a locking ring (501) matched with a square groove (407) and a locking groove (408).

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