Strip blowing and shifting mechanism of granulating equipment

Abstract

The utility model provides a strip blowing and shifting mechanism of granulation equipment, which relates to the technical field of chemical material preparation, and mainly comprises an air blowing pipe, the air blowing pipe is arranged above a conveying belt, the air blowing pipe is not conveyed along with the conveying belt, and when a material strip is conveyed on the conveying belt and passes through the air blowing pipe, the air blowing pipe is driven by the air blowing pipe to blow the material strip. And the blowing pipe blows off the material strips from the conveying belt. Compared with the prior art that a mechanical poking strip completes actions depending on physical contact, moving parts are easy to abrade and sensitive to material characteristics, the air flow non-contact type stripping is adopted, and the problems of strip clamping, adhesion and the like of the poking plate are solved. According to the strip shifting device, the mechanical failure rate in the strip shifting process can be effectively reduced, secondary pollution caused by material residues is avoided, and meanwhile the continuity and the positioning precision of the strip shifting action are improved. As the stirring plate does not need to be cleaned by shutdown, the overall operation efficiency of the equipment is improved, and the device is particularly suitable for treating chemical catalyst raw materials which are high in viscosity and easy to break.

Description

Technical Field

[0001] This utility model relates to the field of chemical material preparation technology, and in particular to a blowing bar mechanism for a granulation device. Background Technology

[0002] Currently, in the chemical industry, when manufacturing pellets, for materials that are not easy to form into strips (easily broken strips) (chemical raw materials, catalyst raw materials), the process used is to form them into strips and then convey (push) them to the pelletizing equipment.

[0003] However, the current mechanical strip-shifting method has disadvantages such as high failure rate, inaccurate strip shifting, easy strip clamping, slow speed, and sticking to the shifting plate, resulting in low catalyst production efficiency and low production capacity. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a blowing and pulling bar mechanism for a granulation equipment, so as to solve the technical problems of inaccurate bar pulling, bar clamping, slow speed and sticking to the pulling plate that are easily caused by the mechanical bar pulling method in the prior art, resulting in low catalyst production efficiency and low production capacity.

[0005] To achieve the above objectives, the present invention provides a blowing strip mechanism for a granulation equipment, including an air blowing pipe disposed above a conveyor belt and not transported with the conveyor belt. When a material strip is transported on the conveyor belt and passes through the air blowing pipe, the air blowing pipe blows the material strip off the conveyor belt.

[0006] Optionally, the air blowing pipe includes a pipe body, on which an air inlet and an air blowing hole are provided, and both the air inlet and the air blowing hole are connected to the hollow cavity of the pipe body.

[0007] Optionally, the air inlet is located at the top of the pipe body, and the air outlet is located on the side of the pipe body.

[0008] Optionally, the air inlet is located at the top center of the pipe body.

[0009] Optionally, the air blowing holes include a plurality of holes and are distributed on at least one side of the tube body.

[0010] Optionally, the inner wall of the air blowing hole is configured as an annular conical hole wall.

[0011] Optionally, the tube body includes two mutually isolated hollow cavities, each hollow cavity corresponding to one air inlet and several air outlets.

[0012] Optionally, it also includes a retainer plate, which is disposed on the side of the conveyor belt and adjacent to the conveyor belt, and the air blowing hole blows air to blow the material strip onto the retainer plate.

[0013] Optionally, the retaining plate is inclinedly disposed on at least one side of the conveyor belt.

[0014] The blowing and pulling mechanism of the granulation equipment provided by this utility model has the following technical effects:

[0015] The blowing and pulling mechanism of this granulation equipment mainly consists of an air blowing pipe located above the conveyor belt. The air blowing pipe is not transported with the conveyor belt; when the material strip passes through the air blowing pipe on the conveyor belt, the air blowing pipe blows the material strip off the conveyor belt. Compared with existing mechanical pulling techniques that rely on physical contact to complete the action, which are prone to wear of moving parts and sensitive to material characteristics, this invention eliminates problems such as strip clamping and adhesion through airflow-based non-contact strip removal. In other words, this invention can effectively reduce the mechanical failure rate during the strip pulling process, avoid secondary pollution caused by material residue, and improve the continuity and positioning accuracy of the strip pulling action. Since there is no need to stop the machine to clean the pulling plates, the overall operating efficiency of the equipment is improved, making it particularly suitable for processing highly viscous and easily broken chemical catalyst raw materials. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural schematic diagram of a preferred embodiment of the blowing bar mechanism of this utility model;

[0018] Figure 2 yes Figure 1 Front view of the central blowing bar mechanism;

[0019] Figure 3 yes Figure 1 Top view of the central blowing mechanism.

[0020] in, Figures 1-3 :

[0021] 1. Conveyor belt; 2. Air blowing pipe; 21. Air inlet; 22. Air blowing hole; 3. Retaining plate; 4. Material strip. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] In view of this, the purpose of this utility model is to provide a blowing and pushing strip mechanism for a granulation equipment, so as to solve the technical problems of the prior art that use mechanical pushing strips to push the strip material into the pelletizing equipment, which is prone to inaccurate pushing strips, easy strip clamping, slow speed and sticking to the pushing plate.

[0024] In existing technologies, the chemical industry typically uses mechanical strip-shifting mechanisms to transfer material strips 4 from conveyor belt 1 to pelletizing equipment during pellet production. These mechanical devices operate through physical contact between the shifting plate and the material strip 4. However, when handling easily broken or sticky materials, the mechanical components are prone to problems such as strip clamping and adhesion, leading to increased failure rates, shifting plate misalignment, and even downtime for maintenance. For example, when the surface adhesion of the material strip 4 is strong, the shifting plate may not be able to completely peel off the material, and the accumulation of residue further exacerbates equipment jamming.

[0025] To address the aforementioned issues, a non-contact shifting mechanism is needed to prevent direct contact between mechanical components and materials. Based on research into airflow forces, directional airflow impact can effectively overcome the adhesion between materials and conveyor belt 1. Further exploration revealed that by setting a fixed air-blowing structure and forming an air curtain above the conveying path, the material strip 4 can be blown away when it passes through a specific position, thus replacing the pushing action of traditional mechanical shifting plates.

[0026] Therefore, as Figure 1-3 As shown, this application proposes a strip blowing mechanism including an air blowing pipe 2. The air blowing pipe 2 is located above the conveyor belt 1 and is not transmitted with the conveyor belt 1. When the material strip 4 is transmitted on the conveyor belt 1 and passes through the air blowing pipe 2, the air blowing pipe 2 blows the material strip 4 off the conveyor belt 1.

[0027] The air blowing pipe 2 is a tubular structure with an internal airflow channel, which can be made of stainless steel or corrosion-resistant alloy material, and is used to concentrate the airflow direction. The air blowing pipe 2 is not transported with the conveyor belt 1; it is fixed to the equipment frame by a bracket and has no mechanical linkage with the conveyor belt 1's moving mechanism, avoiding the structural complexity caused by synchronous movement. The blowing action depends on the matching relationship between the airflow velocity at the outlet of the air blowing pipe 2 and the weight and adhesion force of the material strip 4, and the blowing force can be controlled by adjusting the air pressure.

[0028] Specifically, the air blowing pipe 2 is arranged along the conveying direction of the conveyor belt 1, with its axis maintaining a certain distance from the surface of the conveyor belt 1. When the material strip 4 moves with the conveyor belt 1 to below the air blowing pipe 2, the airflow continuously output from the air blowing pipe 2 acts obliquely on the surface of the material strip 4, breaking the static friction and adhesion between the material and the conveyor belt 1. Since the air blowing pipe 2 is fixed, the airflow action area is always aligned with a specific section of the conveyor belt 1, ensuring that each material strip 4 is peeled off at the same position. The blown-off material strip 4 can fall directly into the downstream pelletizing equipment or be guided to the collection area by the guide plate.

[0029] Compared to existing mechanical strip-pulling technologies that rely on physical contact to complete actions, where moving parts are prone to wear and sensitive to material properties, this invention eliminates problems such as strip clamping and adhesion through airflow-based non-contact strip removal. Mechanical strip-pulling mechanisms require frequent maintenance of moving parts, while the fixed air-blowing pipe 2 requires no dynamic sealing or lubrication, significantly improving structural reliability. Furthermore, the airflow range can be flexibly controlled by adjusting the distribution of the air-blowing holes 22, adapting to material strips 4 of different widths or densities.

[0030] Through the above technical solution, this application can effectively reduce the mechanical failure rate during the bar-shifting process, avoid secondary pollution caused by material residue, and improve the continuity and positioning accuracy of the bar-shifting action. Since there is no need to stop the machine to clean the shifting plates, the overall operating efficiency of the equipment is improved, making it particularly suitable for processing highly viscous and easily broken chemical catalyst raw materials.

[0031] For details, please refer to [link / reference]. Figures 1-3 As shown, the air blowing pipe 2 includes a pipe body, on which an air inlet 21 and an air blowing hole 22 are provided. Both the air inlet 21 and the air blowing hole 22 are connected to the hollow cavity of the pipe body.

[0032] The pipe body is a rigid structure that supports the gas passage; it can be made of stainless steel or aluminum alloy to create a through-flow airflow channel. The air inlet 21 is the interface for connecting to an external air source; it can be a circular through-hole to introduce compressed gas into the hollow cavity. The air outlet 22 is the opening for directional exhaust; it can be an array of channels with a diameter of 1-3 mm to concentrate the gas injection onto the contact surface between the material strip 4 and the conveyor belt 1.

[0033] Specifically, compressed gas enters the hollow cavity of the pipe body through the air inlet 21, forming a stable pressure. When the material strip 4 passes below the air blowing pipe 2, the gas is injected vertically downwards through the air blowing hole 22 into the gap between the material strip 4 and the conveyor belt 1. Since the air blowing hole 22 is connected to the hollow cavity, the gas is evenly distributed in the cavity and then output directionally from the air blowing hole 22, so that the bottom of the material strip 4 is subjected to a uniform pneumatic lifting force, thereby separating from the conveyor belt 1 and completing the strip-pulling action.

[0034] In a preferred embodiment, the air inlet 21 is located at the top of the pipe body, and the air outlet 22 is located on the side of the pipe body.

[0035] The air inlet 21 is an opening for connecting to an external air source, which can be achieved by opening a circular through hole at the top of the pipe body, allowing compressed gas to stably enter the pipe body. The air outlet 22 is an opening for guiding the airflow direction, which can be achieved by arranging multiple rectangular or circular holes along the axial direction on the side of the pipe body, allowing the airflow to act on the surface of the conveyor belt 1 at a specific angle.

[0036] Specifically, when the material strip 4 moves with the conveyor belt 1 to below the air blowing pipe 2, an external air source continuously supplies compressed gas into the pipe body through the air inlet 21 at the top. After the gas forms a stable pressure in the hollow cavity of the pipe body, it is concentrated and sprayed downwards through the air blowing hole 22 on the side. Since the air blowing hole 22 is located on the side and inclined towards the surface of the conveyor belt 1, the airflow can directly impact the contact area between the material strip 4 and the conveyor belt 1, thereby overcoming the material adhesion force and causing it to detach from the conveyor belt 1.

[0037] More detailed, such as Figure 3 As shown, the air inlet 21 is located at the middle of the top of the pipe body.

[0038] The air inlet 21 is an opening used to introduce external airflow into the interior of the pipe body. It can be implemented using a circular or elliptical hole structure. Its function is to ensure that compressed air enters the inner cavity of the pipe body evenly. The middle position at the top of the pipe body is a symmetrical area along the axis of the pipe body length. It can be implemented using a centrally located opening. Its function is to ensure that the airflow is evenly distributed inside the pipe body and to avoid unstable blowing direction due to air inlet deviation.

[0039] More specifically, the air inlet 22 comprises several holes and is distributed on at least one side of the tube body.

[0040] The air outlet 22 is an airflow outlet opened on the side of the tube body. Specifically, it can be implemented by using holes with a diameter of 2-5 mm, with multiple holes spaced apart along the length of the tube body. The number of air outlets 22 can be, for example, 8 or 12, evenly arranged along one or both sides to expand the airflow coverage and improve the efficiency of blowing off the material strip 4.

[0041] The air inlet 22 is preferably shaped with an annular conical wall, which is a tapered structure that gradually narrows internally. Specifically, this can be achieved by processing the inner diameter to decrease from the outside in. This structure allows the airflow to accelerate within the channel, forming a concentrated jet and enhancing the impact force on the material strip 4.

[0042] Specifically, when compressed air passes through the inner cavity of the pipe body, multiple air-blowing holes 22 distributed on the side simultaneously eject airflow. For example, an air-blowing hole 22 is set every 10 centimeters on one side of the pipe body, forming a continuous airflow coverage area. The annular conical hole wall constrains the airflow direction, causing the jet airflow to be concentrated in a bundle and act on the material strip 4 on the conveyor belt 1, ensuring that materials at different positions can be effectively blown away from the conveyor belt 1. By adjusting the distribution density of the air-blowing holes 22, for example, by increasing the hole spacing in the wide area of ​​the conveyor belt 1, the precise blowing off of materials of different specifications can be achieved.

[0043] In a preferred embodiment, the tube body may also include two mutually isolated hollow cavities, each hollow cavity corresponding to an air inlet 21 and several air outlets 22.

[0044] The two isolated hollow cavities are structures where the interior of the tube body is divided into two independent gas channels. This can be achieved using welded partitions or a one-piece molded partition wall, with no gas communication between the two cavities. Specifically, when the material strip 4 passes below the air blowing pipe 2 on the conveyor belt 1, an external air source supplies air to the independent hollow cavities through two air inlets 21. After the compressed air reaches a stable pressure within its respective cavity, it is injected downwards through the corresponding air blowing holes 22. Because the two cavities do not interfere with each other, the airflow pressure on both sides can be adjusted according to different material characteristics. This independent air supply method avoids pressure fluctuations caused by airflow mixing, ensuring the stability of the blowing action.

[0045] As a preferred embodiment, such as Figure 1-3 As shown, it also includes a retaining plate 3, which is located on the side of the conveyor belt 1 and adjacent to the conveyor belt 1. The air blowing hole 22 blows air to blow the material strip 4 onto the retaining plate 3.

[0046] The retaining plate 3 is a guide structure set on both sides of the conveyor belt 1. It can be made of metal or polymer material and is arranged close to the edge of the conveyor belt 1 to form a material receiving area. Through this structure, the blown-off material strips 4 can directly enter the surface of the retaining plate 3, preventing them from scattering outside the equipment.

[0047] Specifically, when airflow is generated at the air outlet 22, the material strip 4 is tilted and blown away from the conveyor belt 1. The retaining plate 3 extends along both sides of the conveyor belt 1, forming a continuous receiving channel. The blown-off material strip 4 moves along a predetermined trajectory under the propulsion of the airflow and eventually lands on the surface of the retaining plate 3. The retaining plate 3 can be flat or slightly concave, for example, with anti-slip textures on the surface to enhance the material retention effect.

[0048] Preferably, the retaining plate 3 is inclinedly disposed on at least one side of the conveyor belt 1. The inclined disposal on at least one side of the conveyor belt 1 means that the retaining plate 3 and the side of the conveyor belt 1 form a non-perpendicular angle. Specifically, this can be achieved by using an adjustable mounting bracket, which facilitates adjustment of the inclination angle according to the material flow characteristics.

[0049] In the description of this utility model, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0050] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0051] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A blow bar mechanism of a granulating apparatus, characterized by, It includes an air blowing pipe, which is located above the conveyor belt and is not transported with the conveyor belt. When the material strip is transported on the conveyor belt and passes through the air blowing pipe, the air blowing pipe blows the material strip off the conveyor belt.

2. The blow bar mechanism of a pelletizing apparatus according to claim 1, characterized by, The air blowing pipe includes a pipe body, on which an air inlet and an air blowing hole are provided, and both the air inlet and the air blowing hole are connected to the hollow cavity of the pipe body.

3. The blow bar mechanism of a pelletizing apparatus according to claim 2, wherein The air inlet is located at the top of the tube body, and the air outlet is located on the side of the tube body.

4. The blow bar mechanism of the pelletizing apparatus according to claim 2, wherein The air inlet is located at the top center of the pipe body.

5. The blow bar mechanism of the pelletizing apparatus according to claim 2, wherein The air blowing holes include a plurality of holes and are distributed on at least one side of the tube body.

6. The blow bar mechanism of a pelletizing apparatus according to claim 5, wherein The inner wall of the air blowing hole is designed as an annular conical hole wall.

7. The blow bar mechanism of the pelletizing apparatus according to claim 2, wherein The tube body includes two mutually isolated hollow cavities, each hollow cavity corresponding to one air inlet and several air outlets.

8. A beater bar mechanism for a pelletising apparatus according to any one of claims 2 to 7, wherein, It also includes a retainer plate, which is located on the side of the conveyor belt and adjacent to the conveyor belt. The air blowing hole blows air to blow the material strips onto the retainer plate.

9. The blow bar mechanism of a pelletizing apparatus according to claim 8, wherein The retaining plate is inclinedly disposed on at least one side of the conveyor belt.

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