A kind of anti-blocking device for vibrating screen used in zinc calcine production

Abstract

The utility model discloses a kind of zinc calcine production is prevented by vibration screen blocking device, it is related to zinc calcine production field, to solve the problem of existing technology by inserting stick inserting screen hole to the particle of blockage is cleaned, but the hardness of inserting stick is lower, long time using inserting stick is easy to bend, and further affect the cleaning of blocked particle.The support frame upper end is provided with vibration screen box, the connecting plate middle part is provided with screen, the vibration screen box inside and at screen lower end one side are provided with spout pipe, the spout pipe front and back two ends respectively pass two oblique strip-shaped openings and extend out vibration screen box front and back two end surfaces and are uniformly fixedly connected with guide sliding block, the spout pipe front end passes front end guide sliding block inside and is fixedly connected with pressurized air blower, using high-pressure airflow reverse blowing's anti-blocking mode, by spout pipe along screen bottom reciprocating movement and inject high-pressure airflow, can effectively remove the particle of blockage in screen hole.

Description

Technical Field

[0001] This utility model relates to the field of zinc roasted ore production, specifically to a vibrating screen anti-clogging device for zinc roasted ore production. Background Technology

[0002] Zinc calcined ore is a product of oxidative roasting of zinc sulfide concentrate. Its main component is zinc oxide, and it also contains small amounts of unreacted zinc sulfide and metal oxides such as iron, lead, and cadmium. It appears as grayish-brown, loose granules with a large specific surface area. During the production of zinc calcined ore, the raw material needs to be screened using a vibrating screen.

[0003] For example, patent announcement number CN221017292U discloses a linear vibrating screen anti-clogging net device, including two vibrating screen supports arranged opposite each other, a screen plate arranged between the two vibrating screen supports, screen holes evenly distributed on the screen plate, a horizontally movable support plate arranged below the screen plate, a cylinder arranged at the upper end of the support plate, an mounting plate arranged at the upper end of the cylinder, and at least one row of inserts corresponding to the positions of the screen holes arranged on the mounting plate. The diameter of the inserts is smaller than the diameter of the screen holes. This linear vibrating screen anti-clogging net device can clean up the blocked particles during the screening of abrasive particles without stopping the machine, thus improving screening efficiency.

[0004] The above-mentioned technology uses a rod inserted into the screen hole to clean the clogged particles. However, because the diameter of the rod is smaller than the diameter of the screen hole, the rod has low hardness and is prone to bending after long-term use, which affects the cleaning of clogged particles. Therefore, the market urgently needs to develop a vibrating screen anti-clogging device for zinc roasting sand production to help people solve the existing problems. Utility Model Content

[0005] The purpose of this utility model is to provide an anti-clogging device for a vibrating screen used in zinc roasting production, in order to solve the problem mentioned in the background art that the existing technology uses a rod inserted into the screen hole to clean the clogged particles, but because the diameter of the rod is smaller than the diameter of the screen hole, the rod has low hardness and is prone to bending after long-term use, which affects the cleaning of clogged particles.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a vibrating screen anti-clogging device for zinc roasting sand production, comprising a support frame, a vibrating screen box being provided at the upper end of the support frame, a connecting plate being obliquely fixedly connected to the middle of the vibrating screen box, a screen being provided in the middle of the connecting plate, a blowpipe being provided inside the vibrating screen box and on one side of the lower end of the screen, oblique strip-shaped openings being provided on both the front and rear ends of the vibrating screen box, the blowpipe extending out of the front and rear ends of the vibrating screen box through the two oblique strip-shaped openings respectively and being fixedly connected to guide sliders, the front end of the blowpipe passing through the front guide slider and being fixedly connected to a pressurized blower, and the rear end of the blowpipe passing through the rear guide slider and being fixedly connected to a sealing plate.

[0007] Preferably, the lower end of one side face of the vibrating screen box and the lower ends of both front and rear ends, as well as the lower ends of one side of both front and rear end faces, are all fixedly connected to the four fixed plates. The lower ends of the four fixed plates are all connected to the upper end face of the support frame by support springs.

[0008] Preferably, the upper end face of the blowpipe is provided with multiple air jets at equal intervals.

[0009] Preferably, the vibrating screen box has support side plates fixedly connected to both the front and rear end faces and the lower ends of the two oblique strip openings, and a screw is rotatably connected between the two support side plates on the front and rear end faces of the vibrating screen box.

[0010] Preferably, the lower ends of the two guide sliders are respectively inserted between the two support side plates on the front and rear end faces of the vibrating screen box, and a threaded through hole is provided in the middle of the lower end of the guide slider. The screw passes through the threaded through hole and is threadedly connected to the guide slider.

[0011] Preferably, guide support rods are fixedly connected to the front and rear ends of the two support side plates between the front and rear end faces of the vibrating screen box, and guide through holes are provided at the front and rear ends of the lower end of the guide slider, with the two guide support rods passing through the two guide through holes on the guide slider respectively.

[0012] Preferably, a drive device is fixedly connected to the outer end face of the support side plate at the upper end of the inclined strip opening on both the front and rear end faces of the vibrating screen box. A drive motor is fixedly installed inside the drive device, and one end of the screw extends into the drive device and is connected to the output shaft of the drive motor through a coupling.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) In this utility model, the anti-clogging method of high-pressure airflow reverse blowing is adopted. The blowing pipe moves back and forth along the bottom of the screen and sprays high-pressure airflow, which can effectively remove the particles blocked in the screen holes. Compared with the traditional rod cleaning device, the cleaning effect is more thorough and will not cause mechanical wear.

[0015] (2) In this utility model, the blow pipe adopts an oblique moving design, which matches the tilt angle of the screen, so that the airflow can evenly cover the entire screen surface, avoiding dead corners of clogging. At the same time, the air jets are arranged at equal intervals to ensure uniform airflow distribution and better clogging effect.

[0016] (3) In this utility model, the movement of the blowpipe is controlled by the drive motor and the screw transmission mechanism, and the operation is stable and reliable. The blowpipe is guided by both ends of the guide slider and the guide support rod, which effectively prevents the blowpipe from deviating or vibrating during the movement, and ensures the continuity and stability of the unblocking operation. Attached Figure Description

[0017] Figure 1 This is a front view of an anti-clogging device for a vibrating screen used in zinc calcination production according to this utility model.

[0018] Figure 2 This is a front sectional view of the guide slider of this utility model;

[0019] Figure 3 This is a side sectional view of the blowpipe of this utility model;

[0020] Figure 4 This is a detailed enlarged view of part A of this utility model.

[0021] In the diagram: 1. Support frame; 2. Vibrating screen box; 201. Fixing plate; 202. Support spring; 203. Slanted strip opening; 3. Connecting plate; 301. Screen; 4. Blowpipe; 401. Air nozzle; 402. Pressurized blower; 403. Sealing plate; 5. Guide slider; 501. Threaded through hole; 502. Guide through hole; 6. Support side plate; 601. Screw; 602. Guide support rod; 7. Drive device; 701. Drive motor. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figure 1-4This utility model provides an embodiment of a vibrating screen anti-clogging device for zinc roasting production, comprising a support frame 1, a vibrating screen box 2 at the upper end of the support frame 1, a connecting plate 3 obliquely fixedly connected to the middle of the vibrating screen box 2, a screen 301 at the middle of the connecting plate 3, a blowpipe 4 inside the vibrating screen box 2 and on one side below the screen 301, a plurality of air jets 401 evenly spaced on the upper surface of the blowpipe 4, oblique strip openings 203 at both the front and rear ends of the vibrating screen box 2, the blowpipe 4 extending out of the front and rear ends of the vibrating screen box 2 through the two oblique strip openings 203 respectively and fixedly connected to the guide sliders 5 at both ends, and the front end of the blowpipe 4 passing through the front guide slider 5 and fixedly connected to the front guide slider 5. The pressurized blower 402 and the blowpipe 4 pass through the rear guide slider 5 and are fixedly connected to the sealing plate 403. When the zinc abrasive raw material is added from the upper inclined direction of the connecting plate 3, the vibrating motor drives the vibrating screen box 2 to vibrate, thereby causing the screen 301 to vibrate and screen the zinc abrasive raw material. At the same time, the pressurized blower 402 pressurizes and sends air into the blowpipe 4. The blowpipe 4 moves back and forth horizontally at the lower end of the screen 301 along the inclined strip opening 203. When the blowpipe 4 moves, the pressurized air inside is sprayed upward through multiple air jets 401, causing the pressurized air to spray the screen 301 in the opposite direction, causing the particles blocking the screen 301 to be sprayed upward, thereby cleaning the screen 301 and preventing blockage.

[0024] Please see Figure 1 and Figure 2 The lower end of one side of the vibrating screen box 2, both the front and rear ends, and the lower end of one side of both front and rear ends are all fixedly connected to a fixing plate 201. The lower ends of the four fixing plates 201 are connected to the upper end of the support frame 1 by a support spring 202.

[0025] Please see Figure 2 and Figure 4 Support plates 6 are fixedly connected to both the front and rear end faces of the vibrating screen box 2 and to the lower ends of the two oblique strip openings 203. A screw 601 is rotatably connected between the two support plates 6 on the front and rear end faces of the vibrating screen box 2. The lower ends of the two guide sliders 5 are respectively inserted between the two support plates 6 on the front and rear end faces of the vibrating screen box 2. A threaded through hole 501 is provided in the middle of the lower end of the guide slider 5. The screw 601 passes through the threaded through hole 501 and is threadedly connected to the guide slider 5. The rotation of the two screws 601 synchronously drives the guide slider 5 to move along the oblique strip opening 203, thereby causing the two guide sliders 5 to synchronously drive the blowpipe 4 to move.

[0026] Please see Figure 3Guide support rods 602 are fixedly connected to the front and rear ends of the two support side plates 6 between the front and rear ends of the vibrating screen box 2. Guide through holes 502 are provided at the front and rear ends of the lower middle part of the guide slider 5. The two guide support rods 602 pass through the two guide through holes 502 on the guide slider 5 respectively. The guide slider 5 is supported by the two guide support rods 602. At the same time, when the guide slider 5 moves, it slides along the guide support rods 602 through the guide through holes 502 for guidance.

[0027] Please see Figure 2 and Figure 4 The outer end face of the support side plate 6 at the upper part of the inclined strip opening 203 on the front and rear end faces of the vibrating screen box 2 is fixedly connected to the drive device 7. The drive device 7 is fixedly installed with a drive motor 701. One end of the screw 601 extends into the drive device 7 and is connected to the output shaft of the drive motor 701 through a coupling. The two drive motors 701 drive the two screws 601 to rotate synchronously.

[0028] Working Principle: During operation, zinc calcined ore raw material is added to the vibrating screen box 2 from the inclined upper end of the connecting plate 3. The vibrating motor is started to drive the vibrating screen box 2 to vibrate, causing the screen 301 to vibrate and screen the raw material. Simultaneously, the pressurized blower 402 is started to continuously supply pressurized air into the blowpipe 4, and the two drive motors 701 synchronously drive the screw 601 to rotate, causing the guide slider 5 to move back and forth along the inclined strip opening 203, thereby causing the blowpipe 4 to slide horizontally back and forth below the screen 301. During the movement of the blowpipe 4, the high-pressure air inside is sprayed upward through the evenly distributed air nozzles 401, forming a reverse airflow that impacts the bottom of the screen 301, forcefully blowing away the particles blocking the screen holes, achieving dynamic unblocking. This device, through the synergistic effect of vibrating screening and air pressure unblocking, effectively prevents screen clogging without stopping the machine, significantly improving the production efficiency and screening quality of zinc calcined ore.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A clog prevention device for a vibrating screen used in zinc roasting production, comprising a support frame (1), characterized in that: The upper end of the support frame (1) is provided with a vibrating screen box (2). A connecting plate (3) is obliquely fixedly connected to the middle of the vibrating screen box (2). A screen (301) is provided in the middle of the connecting plate (3). A blowpipe (4) is provided inside the vibrating screen box (2) and on one side of the lower end of the screen (301). Both the front and rear ends of the vibrating screen box (2) are provided with oblique strip openings (203). The blowpipe (4) extends out of the front and rear ends of the vibrating screen box (2) through the two oblique strip openings (203) and is fixedly connected to guide sliders (5). The front end of the blowpipe (4) passes through the front guide slider (5) and is fixedly connected to a pressurized blower (402). The rear end of the blowpipe (4) passes through the rear guide slider (5) and is fixedly connected to a sealing plate (403).

2. The anti-clogging device for a vibrating screen used in zinc roasting production according to claim 1, characterized in that: The lower end of one side of the vibrating screen box (2) and the lower ends of both the front and rear ends and one side of both the front and rear ends are all fixedly connected to a fixing plate (201). The lower ends of the four fixing plates (201) are connected to the upper end of the support frame (1) by a support spring (202).

3. The anti-clogging device for a vibrating screen used in zinc roasting production according to claim 1, characterized in that: The upper end face of the blowpipe (4) is provided with multiple air jets (401) at equal intervals.

4. The anti-clogging device for a vibrating screen used in zinc roasting production according to claim 1, characterized in that: The vibrating screen box (2) has support side plates (6) fixedly connected to both the front and rear end faces and the lower ends of the two oblique strip openings (203). A screw (601) is rotatably connected between the two support side plates (6) on the front and rear end faces of the vibrating screen box (2).

5. The anti-clogging device for a vibrating screen used in zinc roasting production according to claim 4, characterized in that: The lower ends of the two guide sliders (5) are respectively inserted between the two support side plates (6) on the front and rear end faces of the vibrating screen box (2). A threaded through hole (501) is provided in the middle of the lower end of the guide slider (5). The screw (601) passes through the threaded through hole (501) and is threadedly connected to the guide slider (5).

6. The anti-clogging device for a vibrating screen used in zinc roasting production according to claim 5, characterized in that: The two supporting side plates (6) on the front and rear ends of the vibrating screen box (2) are fixedly connected to the front and rear ends of the two supporting side plates (6) at the middle. The front and rear ends of the lower middle of the guide slider (5) are provided with guide through holes (502). The two guide support rods (602) pass through the two guide through holes (502) on the guide slider (5) respectively.

7. The anti-clogging device for a vibrating screen used in zinc roasting production according to claim 4, characterized in that: The vibrating screen box (2) has a drive device (7) fixedly connected to the outer end face of the support side plate (6) at the upper end of the inclined strip opening (203) on both the front and rear ends. The drive device (7) has a drive motor (701) fixedly installed inside. One end of the screw (601) extends into the drive device (7) and is connected to the output shaft of the drive motor (701) through a coupling.

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