A double-channel sand aggregate screening device

Abstract

The utility model provides a kind of double-channel sand aggregate screening device, belong to material screening technical field, including screening bin, its cross section is the long strip structure of concave structure, is the main body screening component of equipment;Blanking plate, it is transversely fixed in screening bin, two screening spaces can be formed in screening bin by blanking plate, two screening spaces are arranged in parallel up and down, and each screening space is equipped with inclined screen cloth;Two vibration output parts, it is fixed in the outer surface of screening bin, for respectively driving corresponding screen cloth to vibrate;The utility model can effectively save the space occupied by two screening mechanisms, and two sets of screening channels are integrated in one screening bin, so that two materials can be screened simultaneously by one set of equipment, thereby effectively improving the efficiency of material screening.

Description

Technical Field

[0001] The utility model relates to the technical field of material screening equipment, in particular to a dual-channel sand and gravel aggregate screening device. Background Art

[0002] In the fine aggregate processing flow of the sand and gravel aggregate production line, the screening link occupies a pivotal position, and it is one of the key steps to ensure product quality and improve the overall efficiency of the production line. The quality of the screening effect is directly related to whether the quality of the final sand and gravel aggregate can meet the standard requirements, and whether the entire production process can operate efficiently and smoothly.

[0003] In the traditional way of meeting the screening demand, when the screening capacity of a single screening equipment cannot meet the established process requirements, a scheme of parallel screening with multiple pieces of equipment is commonly adopted in the industry. This scheme seems to be able to solve the problem of insufficient screening capacity to a certain extent, but in fact, it has many obvious drawbacks.

[0004] First, the parallel connection of multiple pieces of equipment requires the construction of a complex material conveying and distribution system. Materials need to be accurately and orderly conveyed and distributed between different equipment, which makes the process route tortuous. The complex process route not only increases the difficulty of equipment layout, but also greatly raises the difficulty of management and operation. Operators need to monitor the operating status of multiple pieces of equipment at the same time and precisely control the flow of materials between each equipment. Any mistake in any link may cause problems in the entire screening process, affecting production efficiency and product quality.

[0005] Second, purchasing multiple screening equipment and their supporting facilities will significantly increase the initial investment cost of the project. Each screening equipment itself is expensive, and together with the supporting facilities such as conveying equipment and electrical control system, the overall investment cost increases significantly. For enterprises with limited funds, such a high initial investment will undoubtedly bring huge capital pressure, and may even affect the normal operation and subsequent development of the enterprise.

[0006] Third, the parallel operation of multiple pieces of equipment requires a larger production site. As the number of equipment increases, the occupied land area also increases correspondingly, which not only directly increases the land cost, but also in some areas with tight site resources, the parallel scheme of multiple equipment may not be implemented at all due to site restrictions, thus limiting the production scale and capacity improvement of the enterprise. Contents of the Utility Model

[0007] In view of this, the utility model provides a dual-channel sand and gravel aggregate screening device. The utility model can effectively save the space occupied by two screening mechanisms. By integrating two sets of screening channels in one screening bin, double the amount of materials can be screened simultaneously through one set of equipment, thereby effectively improving the efficiency of material screening.

[0008] To solve the above-mentioned technical problems, this utility model provides a dual-channel sand and gravel aggregate screening device, including a screening bin with a concave cross-section and an open portion facing downwards, which is the main screening component of the equipment.

[0009] The blind plate is fixed horizontally inside the screening chamber. The blind plate can form two screening spaces inside the screening chamber. The two screening spaces are arranged vertically and horizontally. Each screening space is equipped with an inclined screen, which can screen the material in the screening space.

[0010] Two vibration output components are fixed on the outer surface of the screening chamber and are used to drive the corresponding screens to vibrate. The vibration output components can be vibration motors or cams connected to the output shaft of the motor. The outer surface of the cams contacts the bottom of the screens.

[0011] Multiple elastic support components are provided on both sides of the screening chamber. These elastic support components provide elastic support to the screening chamber, allowing it to vibrate slightly during operation.

[0012] The corresponding screening bin is equipped with a hopper, which is located on the side of the screening bin. The bottom of the hopper has two discharge ports, and each discharge port is fixed with a Z-shaped guide channel. One end of the guide channel is located directly below the discharge port, and the other end is located at the end of the screening bin. The guide channel can accurately transport the material into the screening space inside the screening bin.

[0013] The material guide channel includes a quantitative feeding mechanism, which ensures the screening quality of materials in the screening space through top feeding.

[0014] The feed inlet end of the screening chamber is equipped with a guide component corresponding to the material guide channel, which can prevent the material from falling to the ground.

[0015] The bottom of the screening chamber is equipped with a material collection hood, which can collect qualified materials screened out in the screening space below. The bottom of the material collection hood is equipped with a first feeding pipe. The top of the screening chamber is equipped with a second feeding pipe at the discharge port of the screen and the blind plate. The second feeding pipe can collect qualified materials screened out in the screening space above. The second feeding pipe is connected to the first feeding pipe through a three-way pipe.

[0016] A third feeding pipe is connected to the discharge port between the top screen and the top of the screening chamber. The third feeding pipe can collect the unqualified materials screened out in the upper screening space. At the same time, a fourth feeding pipe is connected to the discharge port between the lower screen and the blind plate. The fourth feeding pipe can collect the unqualified materials screened out in the lower screening space.

[0017] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects: 1. Saves space and cost: By integrating two screening channels in one screening chamber, two sets of materials can be screened simultaneously using one device, effectively saving the space occupied by two screening mechanisms, reducing site costs, and reducing the number of equipment to be purchased, significantly reducing the initial investment cost of the project. It is especially suitable for enterprises with limited funds, alleviating financial pressure and ensuring the normal operation and subsequent development of the enterprise.

[0018] 2. Improve screening efficiency: One set of equipment can process two batches of materials at the same time. Compared with traditional single-unit screening, it greatly improves the efficiency of material screening, meets higher production needs, and improves the overall capacity of the production line.

[0019] 3. Simplified process route and operation management: Only one set of equipment needs to be operated. The process route is simple and clear, which reduces the difficulty of equipment layout, simplifies management and operation procedures, reduces the possibility of human error, and ensures production efficiency and product quality.

[0020] 4. Precise Material Delivery and Screening Quality Assurance: One end of the material guide channel is located directly below the hopper outlet, and the other end is located at the end of the screening bin. This ensures precise delivery of materials into the screening space within the bin, preventing spillage. Simultaneously, a quantitative feeding mechanism within the guide channel guarantees a stable material quantity within the screening space, thus ensuring screening quality. Furthermore, a guide component is located at the end of the screening bin's inlet, corresponding to the material guide channel, further preventing material from falling to the ground and ensuring all material enters the screening bin for screening.

[0021] 5. Effective Collection of Materials of Different Specifications: The collection hood can collect qualified materials screened out in the lower screening space. A second feeding pipe is installed at the discharge port of the top screen and the end of the blind plate on the screening bin to collect qualified materials screened out in the upper screening space. The second feeding pipe is connected to the first feeding pipe at the bottom of the collection hood via a three-way pipe, facilitating the unified processing of qualified materials. At the same time, a third feeding pipe is connected to the discharge port between the top screen and the top of the screening bin, and a fourth feeding pipe is connected to the discharge port between the lower screen and the blind plate, respectively collecting unqualified materials screened out in the upper and lower screening spaces. This achieves effective classification and collection of materials of different specifications, facilitating subsequent processing and utilization. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a dual-channel sand and gravel aggregate screening device according to the present invention; Figure 2 This is a structural schematic diagram of the screening process flow chart of this utility model; Figure 3 This is a schematic diagram of the existing screening process.

[0023] Explanation of reference numerals in the attached figures: 1. Screening bin; 2. Blind flange; 3. Screen; 4. Vibration output component; 5. Elastic support component; 6. Hopper; 7. Material guide channel; 8. Quantitative feeding device; 9. Material guide component; 10. Material collection hood; 11. First feeding pipe; 12. Second feeding pipe; 13. Third feeding pipe; 14. Fourth feeding pipe. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the appendices of the embodiments of this utility model. Figure 1-2 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0025] This embodiment provides a dual-channel sand and gravel aggregate screening device, such as... Figure 1-2 As shown: The equipment includes a screening chamber 1, which is a long, concave-shaped structure and serves as the main screening component. The screening chamber 1 is fixed at an angle, with its open side facing the ground. A blind plate 2 is also installed at an angle inside the screening chamber 1, with the length of the blind plate 2 matching that of the screening chamber 1. The blind plate 2 divides the interior of the screening chamber 1 into upper and lower screening spaces. Each screening space contains a screen 3, and both screens 3 are arranged at an angle, parallel to the blind plate 2, with the length of the screen 3 matching that of the blind plate 2. Material is fed onto the upper surface of the screens 3 in the two screening spaces, allowing the two screens 3 to screen the material in each of the two screening spaces respectively. The screen 3 also has two vibration output components 4 on the outside of the screening chamber 1. The vibration output components 4 can be two vibration motors. In this case, the two vibration motors are installed through the wall of the screening chamber 1, and the end of the vibration motor inside the screening chamber 1 is connected to the screen 3. When the vibration motor works, it can drive the corresponding screen 3 to vibrate, thereby screening the material and preventing the material from clogging the mesh. Alternatively, the vibration output component 4 can be a motor installed on the outer wall of the screening chamber 1. The output shaft of the motor is connected to a cam through a transmission method. The cam is located inside the screening chamber 1, and each screen 3 is located above the cam. When the cam rotates, it can drive the screen 3 to vibrate, thereby screening the material and preventing the material from clogging the mesh.

[0026] Furthermore, a hopper 6 is also provided corresponding to the screening chamber 1. The hopper 6 is located on the side of the feed inlet of the screening chamber 1 (the higher end of the screening chamber 1 is the feed inlet, and the lower end is the discharge outlet). The hopper 6 is used to store the material to be screened, and a bracket is also provided on the hopper 6 to provide support for the hopper 6. The bottom of the hopper 6 has two discharge ports, and the horizontal height of the two discharge ports is higher than the feed inlet of the screening chamber 1. Corresponding to the two discharge ports, there are two guide channels. The two guide channels are Z-shaped structures, and one end of the guide channel is connected to the discharge port of the hopper 6. The other end of the guide channel is connected to the feed inlet of the two screening chambers 1. Thus, the material can be guided through the guide channels to accurately transport the material into the two screening spaces for screening.

[0027] Preferably, the material guide channel 7 includes a quantitative feeding mechanism. The top feeding mechanism can discharge the material at a uniform speed, so that the material can enter the screening channel at a uniform speed, thereby avoiding the problem of too much material entering the screening channel and failing to screen the material sufficiently.

[0028] Furthermore, a clearance groove is provided at the top of the screening bin 1 at the feed end, and one end of the guide channel is located in the clearance groove, so that the material discharged in the guide channel can directly enter the upper screening space for screening. A guide component is also fixed at the end of the other guide channel. The guide component is located at the feed inlet of the upper and lower screening spaces of the screening bin 1, so that the material in the guide channel 7 can be prevented from falling to the ground when discharged into the lower screening space.

[0029] Correspondingly, multiple elastic support members 5 are fixed on both sides of the screening chamber 1. The elastic support members 5 include elastic torsion springs, which can provide elastic support for the screening chamber 1. This can prevent hard wear from forming in the screening chamber 1 during screening, thereby effectively increasing the service life of the equipment.

[0030] Correspondingly, the bottom of the screening chamber 1 is also equipped with a material collection hood 10. The material collection hood 10 has a bucket-shaped structure that is wider at the top and narrower at the bottom. That is, the material in the screening space below that passes through the screen 3 is qualified material. These qualified materials can enter the material collection hood 10. The bottom of the material collection hood 10 is also connected to a first feeding pipe 11. The qualified materials collected in the material collection hood 10 can be conveyed through the first feeding pipe 11.

[0031] Meanwhile, a second feeding pipe 12 is connected to the discharge port between the screen 3 and the blind plate 2 in the upper screening space of the screening chamber 1. The second feeding pipe 12 can collect the qualified materials screened out in the upper screening space. The other end of the second feeding pipe 12 is connected to the first feeding pipe 11 through a three-way connector, so that the qualified materials screened out in the two screening spaces can be transported in a unified manner.

[0032] Correspondingly, a third feeding pipe 13 is connected to the discharge port of the screen 3 in the upper screening space and the screening chamber 1, which can collect the unqualified materials screened out in the upper screening space. Furthermore, a fourth feeding pipe 14 is connected to the discharge port between the screen 3 in the lower screening space and the blind plate 2, which can collect the unqualified materials in the lower screening space.

[0033] Working principle: The materials are uniformly fed into the hopper 6, and then fall into the two guide channels 7. The quantitative feeding mechanism in the guide channels 7 can uniformly discharge the materials into the two screening spaces. At the same time, controlling the two vibration output components 4 can drive the two screens 3 to perform screening. In this way, qualified materials will enter the first feeding pipe 11 and the second feeding pipe 12 respectively, while unqualified materials will enter the third feeding pipe 13 and the fourth feeding pipe 14 for collection and transfer for further processing.

[0034] Furthermore, it should be noted that, in the description of this utility model, 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A dual-channel sand and gravel aggregate screening device, characterized in that, include: The screening chamber (1) has a long strip structure with a concave cross-section and is the main screening component of the equipment; Blind plate (2) is fixed horizontally in screening chamber (1). Through blind plate (2), two screening spaces can be formed in screening chamber (1). The two screening spaces are arranged in parallel vertically. Each screening space is equipped with an inclined screen (3). Two vibration output components (4) are fixed on the outer surface of the screening chamber (1) and are used to drive the corresponding screens (3) to vibrate respectively.

2. The dual-channel sand and gravel aggregate screening device as described in claim 1, characterized in that, The screening chamber (1) is provided with multiple elastic support members (5) on both sides, which can provide elastic support for the screening chamber (1).

3. The dual-channel sand and gravel aggregate screening device as described in claim 1, characterized in that, A hopper (6) is provided in the corresponding screening bin (1). The hopper (6) is located on the side of the screening bin (1). The bottom of the hopper (6) has two discharge ports. Each discharge port has a Z-shaped guide channel (7) fixed at the bottom. One end of the guide channel (7) is located directly below the discharge port, and the other end is located at the end of the screening bin (1).

4. The dual-channel sand and gravel aggregate screening device as described in claim 3, characterized in that, The material guiding channel (7) includes a quantitative feeding mechanism.

5. The dual-channel sand and gravel aggregate screening device as described in claim 3, characterized in that, The feed inlet end of the screening bin (1) is provided with a guide (9) corresponding to the guide channel (7).

6. A dual-channel sand and gravel aggregate screening device as described in any one of claims 1-5, characterized in that, The bottom of the screening chamber (1) is provided with a material collection hood (10), and the bottom of the material collection hood (10) is provided with a first feeding pipe (11). The screen (3) at the top of the screening chamber (1) and the outlet of the blind plate (2) are also provided with a second feeding pipe (12). The second feeding pipe (12) is connected to the first feeding pipe (11) through a three-way pipe.

7. A dual-channel sand and gravel aggregate screening device as described in any one of claims 1-5, characterized in that, The discharge port between the top screen (3) and the top of the screening chamber (1) is also connected to a third feeding pipe (13), and the discharge port between the bottom screen (3) and the blind plate (2) is also connected to a fourth feeding pipe (14).

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