Flow guide type anti-blocking screening and filtering mechanism of powder selecting machine

Abstract

The utility model relates to the technical field of powder selecting machine screening, in particular to a flow guide type anti-blocking powder selecting machine screening mechanism which comprises a body, a connecting pipe is arranged at the upper end of the body, a screening box is arranged at the upper end of the connecting pipe, a feeding pipe is arranged on the upper side wall of the screening box, and installation assemblies are arranged on the two side walls of the screening box. A matched screening and filtering plate is arranged in the mounting assembly, a moving assembly is arranged at the upper end of the screening and filtering box, a high-pressure air injection device is arranged on the moving assembly, a plurality of flow guide fan assemblies are arranged on the screening and filtering box, the mounting assembly comprises a damping sliding rail and a damping mounting block, and the moving assembly comprises a sliding rod, a positioning rod and an adjusting block. The high-pressure air injection device comprises an air injection head, an output pipe and an air injection pump, the flow guide fan assembly comprises flow guide blades and a rotating motor, the local accumulation risk is effectively reduced, and the service life of the screen is remarkably prolonged.

Description

Technical Field

[0001] This utility model relates to the field of air classifier screening and filtration technology, specifically a flow-guided anti-clogging air classifier screening and filtration mechanism. Background Technology

[0002] As is well known, in existing powder processing fields such as cement and mining, the screening mechanism of the air classifier is the core component that determines the sorting efficiency and energy consumption. Traditional screening devices generally use vibrating screens combined with fixed unclogging structures, which have significant drawbacks in practical applications.

[0003] Specifically, when processing fine powders or high-moisture materials, the screen surface is prone to caking and blockage due to material adhesion. Over time, this not only accelerates screen fatigue and breakage but also causes secondary material agglomeration. Existing mechanical unclogging mechanisms lack adaptive adjustment capabilities and cannot dynamically adjust the unclogging intensity when material characteristics change. This often results in a dual contradiction: insufficient unclogging force leading to continuous material blockage, or overloaded unclogging causing increased screen wear. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a flow-guided anti-clogging air classifier screening mechanism.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a flow-guided anti-clogging classifier screening mechanism, comprising a main body, a connecting pipe at the upper end of the main body, a screening box at the upper end of the connecting pipe, a feed pipe on the upper side wall of the screening box, mounting components on both side walls of the screening box, a suitable screening plate inside the mounting components, a moving component at the upper end of the screening box, a high-pressure jet device on the moving component, and multiple flow-guided fan assemblies on the screening box.

[0008] To ensure stable installation and impact resistance of the sieve plate, the present invention includes the following improvements: the installation assembly includes a damping slide rail and a damping mounting block. The damping slide rail is symmetrically arranged on both sides of the filter box, and the damping mounting block is located within the damping slide rail and is damped and slidably connected to it. The filter plate is located between the two damping mounting blocks.

[0009] To achieve automatic scanning of the screen, this utility model improves upon the following: the moving component includes a sliding rod, a positioning rod, and an adjusting block. The sliding rod and the positioning rod are symmetrically arranged at both ends of the upper side wall of the screen box. The adjusting block connects the sliding rod and the positioning rod. The sliding rod passes through one end of the adjusting block and is threadedly connected to it. The positioning rod passes through the other end of the adjusting block and is slidably connected to it. A moving motor is provided at one end of the screen box. The sliding rod passes through the screen box and is connected to the output end of the moving motor.

[0010] To precisely target and remove stubborn blockages, this utility model is improved as follows: the high-pressure jet device includes a jet head, an output pipe, and a jet pump. The jet pump is located at one end of the filter box, the jet head is located at the lower end of the adjusting block, one end of the output pipe is connected to the jet pump, and the other end passes through the adjusting block and is connected to the jet head.

[0011] To forcibly disperse accumulated materials, the present invention includes the following improvements: the guide fan assembly includes guide vanes and a rotating motor, the guide vanes are on the inner wall of the filter box, the rotating motor is on the upper side wall of the filter box, and the inner shaft of the guide vanes passes through the upper side wall of the filter box and is connected to the output end of the rotating motor.

[0012] To prevent material accumulation during secondary vibration, this utility model is improved by providing a vibrator at the bottom of the filter box.

[0013] To prevent dust from entering the motor, the present invention is improved by providing a magnetic fluid sealing sleeve between the output shaft of the rotating motor and the inner shaft of the guide vane.

[0014] To achieve intelligent matching of airflow intensity, the present invention includes the following improvement: a pulse generator is installed inside the jet head, and the pulse frequency is negatively correlated with the rotational speed of the guide fan assembly.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides a flow-guiding anti-clogging air classifier screening mechanism, which has the following beneficial effects:

[0017] The sieving mechanism of this flow-guided anti-clogging classifier is equipped with a flow-guided fan assembly. The directional airflow generated during rotation can guide fine powder to diffuse evenly towards the sieve plate, effectively reducing the risk of local accumulation.

[0018] Equipped with a high-pressure jet device, the moving motor drives the moving rod to rotate through the precise drive of the moving component. The adjusting block moves with the rotation of the moving rod, causing the jet head to perform reciprocating scanning jets along the surface of the screen plate. The pulse generator dynamically adjusts the airflow impact frequency according to the speed of the guide fan, triggering a targeted clearing action in the early stage of screen hole blockage. This avoids the energy waste caused by traditional fixed jets and prevents excessive impact damage to the screen by high-pressure airflow.

[0019] The filter plate is flexibly fixed by a damping slide rail mounting assembly. Under the low-frequency excitation of the vibrator, it can maintain stable filtration of the screen body and offset the impact stress of the material with the help of elastic buffer, which can significantly extend the screen life. Attached Figure Description

[0020] Figure 1 This is a first-view schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a second-view schematic diagram of the structure of this utility model;

[0022] Figure 3 This is an exploded view of the filter box structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the internal cross-section of the filter box of this utility model.

[0024] In the diagram: 1. Main body; 2. Connecting pipe; 3. Filter box; 4. Air pump; 5. Output pipe; 6. Feed pipe; 7. Rotary motor; 8. Filter plate; 9. Damping slide rail; 10. Damping mounting block; 11. Sliding rod; 12. Positioning rod; 13. Adjusting block; 14. Air nozzle; 15. Moving motor; 16. Guide vane. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] Please see Figure 1-4 A flow-guided anti-clogging air classifier filtration mechanism includes a body 1, a connecting pipe 2 at the upper end of the body 1, a filtration box 3 at the upper end of the connecting pipe 2, a feed pipe 6 on the upper side wall of the filtration box 3, mounting components on both side walls of the filtration box 3, a matching filtration plate 8 inside the mounting components, a moving component at the upper end of the filtration box 3, a high-pressure jet device on the moving component, and multiple flow-guided fan assemblies on the filtration box 3. The high-pressure jet device includes a jet head 14, an output pipe 5, and a jet pump 4. The jet pump 4 is located at one end of the filtration box 3, the jet head 14 is located at the lower end of an adjusting block 13, one end of the output pipe 5 is connected to the jet pump 4, and the other end passes through the adjusting block 13 and is connected to the jet head 14. A vibrator is located at the bottom of the filtration box 3, and a pulse generator is located inside the jet head 14. The pulse frequency is negatively correlated with the rotational speed of the flow-guided fan assembly.

[0029] During use, the powder enters the filter box 3 through the feed pipe 6. At this time, the guide fan assembly on the inner wall of the filter box 3 generates directional airflow to quickly disperse the powder, forcing the powder to be evenly dispersed and suspended in the filter box 3, avoiding local accumulation on the surface of the filter plate 8. At the same time, the vibrator continuously acts on the bottom of the filter box 3 with low-frequency vibration, assisting the fine powder to quickly pass through the screen holes and fall into the body 1. When large particles are retained or the screen holes are blocked, the moving component responds immediately, driving the jet head 14 to reciprocate and scan the surface of the filter plate 8. Then the jet pump 4 starts, and high-pressure gas is delivered to the jet head 14 through the output pipe 5 to precisely blast and clear the blockage area. At the same time, the pulse generator controls the impact rhythm of the high-pressure airflow according to the preset negative correlation (the lower the speed of the guide fan, the higher the pulse frequency) to precisely blast and clear the blockage area. This process can not only efficiently remove stubborn blockages, but also avoid screen wear caused by continuous high-pressure airflow. The fine powder after sieving enters the body 1 through the connecting pipe 2 for further processing.

[0030] In practical use, it is necessary to achieve stable installation of the screen plate, impact resistance, and convenient assembly and disassembly. To meet these requirements, in this embodiment, the installation assembly includes a damping slide rail 9 and a damping mounting block 10. The damping slide rail 9 is symmetrically arranged on both sides of the filter box 3, and the damping mounting block 10 is located within the damping slide rail 9 and is slidably connected to it. The filter plate 8 is located between the two damping mounting blocks 10.

[0031] Coarse particles that fail to pass through the screen remain inside the filter plate 8. By pulling the damping mounting block 10 forcefully, the damping mounting block 10 slides within the damping slide rail 9, allowing the filter plate 8 to be disassembled and cleaned.

[0032] In practical use, the jet head 14 needs to automatically sweep the screen to achieve full-area coverage. To meet this requirement, in this embodiment, the moving component includes a sliding rod 11, a positioning rod 12, and an adjusting block 13. The sliding rod 11 and the positioning rod 12 are symmetrically arranged at both ends of the upper side wall of the filter box 3. The adjusting block 13 connects the sliding rod 11 and the positioning rod 12. The sliding rod 11 passes through one end of the adjusting block 13 and is threadedly connected to it. The positioning rod 12 passes through the other end of the adjusting block 13 and is slidably connected to it. A moving motor 15 is provided at one end of the filter box 3. The sliding rod 11 passes through the filter box 3 and is connected to the output end of the moving motor 15.

[0033] The moving motor 15 drives the sliding rod 11 to rotate. Under the limit of the positioning rod 12, the adjusting block 13 can be pushed to move laterally along the positioning rod 12 through the threaded transmission, so that the jet head 14 can spray fully.

[0034] In practical use, it is necessary to forcefully disperse material clumps and accumulations. To meet this requirement, in this embodiment, the guide fan assembly includes guide vanes 16 and a rotating motor 7. The guide vanes 16 are located on the inner wall of the filter box 3, and the rotating motor 7 is located on the upper side wall of the filter box 3. The inner shaft of the guide vanes 16 passes through the upper side wall of the filter box 3 and is connected to the output end of the rotating motor 7.

[0035] The output of the rotating motor 7 drives the guide vane 16 to rotate. The airflow direction of the guide fan is optimized to guide the powder to diffuse towards the area of ​​the two side screen plates 8, so that the fine powder naturally approaches the screen plate 8 under the action of airflow and its own weight.

[0036] In practical use, it is necessary to prevent dust from entering the motor. In order to meet the above requirements, in this embodiment, a magnetic fluid sealing sleeve is provided between the output shaft of the rotating motor 7 and the inner shaft of the guide vane 16.

[0037] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flow guiding anti-blocking powder concentrator screen filter mechanism comprising a body (1), characterized in that: The main body (1) is provided with a connecting pipe (2) at its upper end, and a filter box (3) is provided at the upper end of the connecting pipe (2). A feed pipe (6) is provided on the upper side wall of the filter box (3). An installation assembly is provided on both side walls of the filter box (3). A matching filter plate (8) is provided inside the installation assembly. A moving assembly is provided at the upper end of the filter box (3). A high-pressure jet device is provided on the moving assembly. Multiple guide fan assemblies are provided on the filter box (3).

2. The flow-guiding anti-clogging classifier screening mechanism according to claim 1, characterized in that: The mounting assembly includes a damping slide rail (9) and a damping mounting block (10). The damping slide rail (9) is symmetrically arranged on both sides of the filter box (3). The damping mounting block (10) is inside the damping slide rail (9) and is damped and slidably connected to it. The filter plate (8) is between the two damping mounting blocks (10).

3. The flow-guiding anti-clogging classifier screening mechanism according to claim 1, characterized in that: The moving component includes a sliding rod (11), a positioning rod (12), and an adjusting block (13). The sliding rod (11) and the positioning rod (12) are symmetrically arranged at both ends of the upper side wall of the filter box (3). The adjusting block (13) connects the sliding rod (11) and the positioning rod (12). The sliding rod (11) passes through one end of the adjusting block (13) and is threadedly connected to it. The positioning rod (12) passes through the other end of the adjusting block (13) and is slidably connected to it. A moving motor (15) is provided at one end of the filter box (3). The sliding rod (11) passes through the filter box (3) and is connected to the output end of the moving motor (15).

4. The flow-guiding anti-clogging classifier screening mechanism according to claim 3, characterized in that: The high-pressure jet device includes a jet head (14), an output pipe (5), and a jet pump (4). The jet pump (4) is located at one end of the filter box (3), the jet head (14) is located at the lower end of the adjusting block (13), one end of the output pipe (5) is connected to the jet pump (4), and the other end passes through the adjusting block (13) and is connected to the jet head (14).

5. The flow-guiding anti-clogging classifier screening mechanism according to claim 1, characterized in that: The guide fan assembly includes a guide vane (16) and a rotating motor (7). The guide vane (16) is on the inner wall of the filter box (3), and the rotating motor (7) is on the upper side wall of the filter box (3). The inner shaft of the guide vane (16) passes through the upper side wall of the filter box (3) and is connected to the output end of the rotating motor (7).

6. The flow-guiding anti-clogging classifier screening mechanism according to claim 1, characterized in that: The bottom of the filter box (3) is equipped with a vibrator.

7. The flow-guiding anti-clogging classifier screening mechanism according to claim 5, characterized in that: A magnetic fluid sealing sleeve is provided between the output shaft of the rotating motor (7) and the inner shaft of the guide vane (16).

8. The flow-guiding anti-clogging classifier screening mechanism according to claim 4, characterized in that: The jet head (14) is equipped with a pulse generator, and the pulse frequency is negatively correlated with the rotational speed of the guide fan assembly.

Images