Novel spiral screening machine

Abstract

The utility model relates to the technical field of spiral screening equipment, in particular to a novel spiral screening machine which comprises a machine frame, a screening box is arranged on the machine frame, a spiral screening shaft assembly is arranged in the screening box, a feeding opening is formed in the upper portion of the screening box, and a receiving hopper is arranged below the screening box. A belt conveyor is arranged at the position, corresponding to the lower portion of the receiving hopper, of the machine frame, the spiral material screening shaft assembly comprises a plurality of spiral material screening shafts arranged in the direction perpendicular to the conveying direction of the belt conveyor, the spiral material screening shafts are rotationally arranged on the machine frame, spiral rib plates are arranged on the outer side walls of the spiral material screening shafts, and the spiral rib plates are arranged on the outer side walls of the spiral material screening shafts. The spiral material screening shafts form a material screening face, screen materials are discharged through the material receiving hopper, screen materials are pushed by the spiral material screening shaft assemblies to one side of the free shaft end to be discharged, and the device is applied to garbage screening and can achieve continuous and rapid separation of heavy-substance garbage and light-substance garbage.

Description

Technical Field

[0001] The utility model relates to the technical field of garbage screening equipment, in particular to a novel spiral screening machine. Background Art

[0002] In the field of environmental protection and resource recovery, garbage treatment has always been a crucial link. With the acceleration of urbanization, the amount of garbage generated has increased sharply, and the requirements for garbage treatment technologies have also been increasing day by day. Traditional garbage screening methods often have problems such as low efficiency, unsatisfactory separation effect, and complex equipment maintenance, making it difficult to meet the needs of modern garbage treatment.

[0003] As an efficient screening equipment, spiral screening machines have been widely used in many industries, such as mining, building materials, etc. However, in the field of garbage treatment, especially for complex and variable urban domestic garbage, traditional spiral screening machines are often difficult to be directly applied, and special design and optimization are required according to the characteristics of garbage.

[0004] Traditional garbage screening methods, such as manual sorting, vibrating screening, etc., can achieve preliminary classification of garbage to a certain extent, but have problems such as high labor intensity, low efficiency, and low classification accuracy. Especially for the separation of heavy substances (such as metals, glass, etc.) and light substances (such as plastics, papers, etc.), traditional methods often fail to achieve an ideal separation effect. Therefore, developing a novel spiral screening machine specifically for the garbage treatment field to achieve continuous and rapid separation of heavy and light substances is of great significance for improving garbage treatment efficiency, reducing treatment costs, and promoting resource recycling. Summary of the Invention

[0005] Based on such a background, the utility model proposes a novel spiral screening machine, which is applied to garbage screening and can achieve continuous and rapid separation of heavy and light garbage.

[0006] In order to achieve the above object, the embodiments of the utility model specifically adopt the following technical solutions: A novel spiral screening machine includes a frame, a screening box is arranged on the frame, a spiral screening shaft assembly is arranged in the screening box, a feeding port is opened above the screening box, a receiving hopper is arranged below the screening box, a belt conveyor is arranged on the frame at a position corresponding to the lower part of the receiving hopper, the spiral screening shaft assembly includes a plurality of spiral screening shafts arranged perpendicular to the conveying direction of the belt conveyor, the spiral screening shafts are rotatably arranged on the frame, spiral rib plates are arranged on the outer side walls of the spiral screening shafts, and the plurality of spiral screening shafts form a screening surface. The screened materials are discharged from the receiving hopper, and the oversize materials are pushed by the spiral screening shaft assembly to be discharged to one side of the free shaft end.

[0007] To further optimize the utility model, the following technical solutions can be preferably selected:

[0008] Preferably, one end of the spiral screening shaft is rotatably arranged on the frame, and the other end is suspended in the air, and the rotation directions of the multiple spiral screening shafts are the same.

[0009] Preferably, the spiral ribs on two adjacent spiral screening shafts are arranged in an interlaced manner.

[0010] Preferably, a guide plate is provided on the frame at a position below the free axis of the spiral screening shaft assembly.

[0011] Preferably, material guard plates are provided on the frame at positions on both sides of the conveying surface corresponding to the belt conveyor, the material receiving hopper is conical, and the lower end of the material receiving hopper extends to a position between the two material guard plates.

[0012] Preferably, a material blocking vertical plate is provided in the screen box at a position corresponding to the screening surface away from the feeding side, and a scraping inclined plate is provided on the top of the material blocking vertical plate, and the lower end of the scraping inclined plate extends to the side wall position of the innermost spiral screening shaft.

[0013] The application of the new spiral screening machine of this utility model in the field of garbage screening has brought significant beneficial effects, which are specifically reflected in the following aspects:

[0014] (1) High-efficiency screening capability: Through the unique design of the spiral screening shaft assembly, this equipment can achieve high-efficiency screening of heavy and light materials in garbage. The design of the spiral ribs increases the screening area, and at the same time, the force of the spiral rotation is used to push the material, making the screening process more continuous and rapid, greatly improving the screening efficiency.

[0015] (2) Precise separation effect: Due to the arrangement and rotation of the spiral screening shaft assembly, the material is subjected to uniform and effective screening force during the screening process, thereby achieving precise separation of heavy and light materials. This separation effect not only improves the purity of resource recovery, but also reduces the difficulty and cost of subsequent processing.

[0016] (3) Continuous operation capability: This equipment adopts a continuous feeding and discharging design, which enables the screening process to continue without frequent shutdown for cleaning or adjustment. This continuous operation capability not only improves the utilization rate of the equipment, but also ensures the continuity and stability of waste treatment.

[0017] (4) Compact structure and easy maintenance: The entire equipment has a compact structure and occupies a small area, making it easy to install and use in limited spaces such as waste treatment plants. At the same time, the equipment is also relatively simple to maintain. Key components such as the spiral screen shaft assembly are easy to disassemble and replace, reducing maintenance costs and time.

[0018] (5) Environmental protection and energy conservation: During the screening process, this equipment adopts a design with low noise and low energy consumption, reducing the impact on the environment. At the same time, through efficient screening and precise separation, the resource recovery rate is improved, and the environmental burden caused by landfill and incineration of garbage is reduced.

[0019] In summary, the new spiral screening machine of the present utility model has significant beneficial effects in the field of garbage screening. It not only improves the screening efficiency and separation accuracy, but also reduces the equipment maintenance cost and environmental impact, providing strong support for the sustainable development of the garbage treatment industry. Brief Description of the Drawings

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the spiral screening machine in Embodiment 1;

[0021] Figure 2 It is the front view of the spiral screening machine in Embodiment 1;

[0022] Figure 3 It is the side view of the spiral screening machine in Embodiment 1;

[0023] Figure 4 It is the top view of the spiral screening machine in Embodiment 1.

[0024] In the figure: 1, frame; 2, screening box; 3, spiral screening shaft assembly; 4, feeding port; 5, receiving hopper; 6, belt conveyor; 7, spiral screening shaft; 8, spiral rib plate; 9, guiding plate; 10, material protection plate; 11, baffle vertical plate; 12, scraping inclined plate. Detailed Description of the Preferred Embodiments

[0025] The following describes the preferred embodiments of the present utility model with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principle of the present utility model and are not intended to limit the protection scope of the present utility model.

[0026] Embodiment 1: As Figures 1-4 shown, a new type of spiral screening machine includes a frame 1, a screening box 2 is installed on the frame, a spiral screening shaft assembly 3 is installed in the screening box, a feeding port 4 is opened above the screening box, a receiving hopper 5 is installed below the screening box, a belt conveyor 6 is installed on the frame at a position corresponding to the lower part of the receiving hopper, the spiral screening shaft assembly includes a plurality of spiral screening shafts 7 arranged perpendicular to the conveying direction of the belt conveyor, the spiral screening shafts are rotatably installed on the frame, spiral rib plates 8 are installed on the outer side walls of the spiral screening shafts, the plurality of spiral screening shafts form a screening surface, the screened materials are discharged from the receiving hopper, and the oversize materials are pushed by the spiral screening shaft assembly to be discharged to one side of the free shaft end.

[0027] As a preferred embodiment, one end of the spiral screening shaft 7 is rotatably installed on the frame and connected to the drive source, and the other end is installed in a suspended manner. The rotating directions of multiple spiral screening shafts are the same. The design advantages of the above structure are as follows: (1) Enhancing the screening effect: The design of fixing one end of the spiral screening shaft and suspending the other end enables a certain swing or vibration to occur at the suspended end during rotation. This dynamic effect helps the uniform distribution of materials on the screening surface and more thorough screening, thereby improving the screening efficiency and separation accuracy. (2) Reducing blockage: The design of the suspended end also helps to reduce the blockage of materials during the screening process. When too much material accumulates on the screening surface, the vibration of the suspended end can prompt the material to loosen and continue to move forward, avoiding the blockage of the sieve holes or affecting the screening effect.

[0028] Among them, the spiral rib plates on two adjacent spiral screening shafts are arranged in an interlaced manner. The design advantages of the above structure are as follows: (1) Improving the screening efficiency: The interlaced arrangement of the spiral rib plates enables a more complex material flow path to be formed between adjacent spiral screening shafts during the screening process. This design helps the material to be turned over and collided multiple times on the screening surface, increasing the contact opportunity between the material and the sieve surface, thereby improving the screening efficiency. (2) Enhancing the separation effect: The interlaced spiral rib plates can also generate a stronger screening force during the screening process, making it easier to separate different components in the material. Especially for the separation of heavy and light substances, the interlaced spiral rib plates can more effectively separate the two, improving the separation accuracy. (3) Optimizing the material flow: In addition, the interlaced spiral rib plates help to optimize the material flow direction, enabling the material to move more smoothly along the screening surface, reducing the accumulation and retention of materials during the screening process, and further improving the screening efficiency and the processing capacity of the equipment.

[0029] As a preferred embodiment, a guide plate 9 is installed at the position below the free shaft of the spiral screening shaft assembly corresponding to the frame 1, which can achieve: (1) Smooth discharging: Installing the guide plate 9 at the position below the free shaft of the spiral screening shaft assembly can ensure that the screened material can be discharged smoothly, avoiding the accumulation or scattering of materials at the free shaft end, and improving the cleanliness and efficiency of discharging. (2) Preventing material entanglement: The design of the guide plate can also effectively prevent the material from being entangled and entering below the equipment during the discharging process, reducing equipment failures and maintenance costs, and protecting other components inside the equipment from damage at the same time.

[0030] As a preferred embodiment, material protection plates 10 are installed on both sides of the conveying surface of the belt conveyor corresponding to the positions on the rack 1. The receiving hopper is conical, and the lower end of the receiving hopper extends to the position between the two material protection plates. The above structural design has the following design advantages: (1) Protect the belt conveyor: Installing material protection plates on both sides of the conveying surface of the belt conveyor can prevent materials from scattering or splashing during the conveying process, protecting the cleanliness and safety of the belt conveyor and its surrounding environment. (2) Efficiently collect materials: The design of the conical receiving hopper enables materials to fall into the belt conveyor more concentratedly, reducing the loss and waste of materials during the receiving process, and improving the collection efficiency and utilization rate of materials. At the same time, the lower end of the receiving hopper extends to the position between the two material protection plates, ensuring that the materials can accurately and stably enter the belt conveyor, and avoiding the deviation or blockage of materials during the conveying process.

[0031] As a preferred embodiment, a baffle vertical plate 11 is installed on the sieve box 2 corresponding to the position on the sieve surface away from the feeding side. A scraping inclined plate 12 is installed on the top of the baffle vertical plate, and the lower end of the scraping inclined plate extends to the side wall position of the innermost spiral sieve shaft, which can achieve the following functions: (1) Prevent material accumulation: Installing a baffle vertical plate on the sieve box corresponding to the position on the sieve surface away from the feeding side can effectively prevent materials from accumulating on the edge of the sieve box during the screening process, affecting the screening effect and the normal operation of the equipment. (2) Assist in scraping materials: The design of the scraping inclined plate further enhances the screening effect. When the materials gradually approach the baffle vertical plate during the screening process, the scraping inclined plate can scrape them off and guide them to the side wall position of the innermost spiral sieve shaft, ensuring that the materials can continue to participate in the screening process, improving the screening efficiency and separation accuracy. At the same time, the scraping inclined plate can also reduce the residue of materials on the sieve surface, reducing the cleaning difficulty and cost.

[0032] It should be noted that in the description of the present invention, the terms indicating directions or positional relationships such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description, rather than indicating or implying that the device or element must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0033] In addition, it should be noted that in the description of the present utility model, unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0034] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device comprising a series of elements includes not only those elements but also other elements not expressly listed, or also elements inherent to those processes, articles, or apparatus / device.

[0035] So far, the technical solution of the present utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present utility model is obviously not limited to these specific embodiments. Without departing from the principle of the present utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present utility model.

Claims

1. A new type of spiral screening machine, characterized in that: It includes a frame, on which a screening box is arranged. Inside the screening box, a spiral screening shaft assembly is provided. Above the screening box, a feeding opening is formed. Below the screening box, a receiving hopper is arranged. On the frame, at a position corresponding to the lower side of the receiving hopper, a belt conveyor is provided. The spiral screening shaft assembly includes a plurality of spiral screening shafts arranged perpendicular to the conveying direction of the belt conveyor. The spiral screening shafts are rotatably arranged on the frame. Spiral rib plates are arranged on the outer side walls of the spiral screening shafts. The plurality of spiral screening shafts form a screening surface. The screened materials are discharged from the receiving hopper, and the oversize materials are pushed by the spiral screening shaft assembly to be discharged to one side of the free shaft end.

2. A novel spiral screening machine according to claim 1, characterized in that: One end of each spiral screening shaft is rotatably arranged on the frame, and the other end is suspended. The rotation directions of the plurality of spiral screening shafts are the same.

3. A novel spiral screening machine according to claim 1, characterized in that: The spiral rib plates on adjacent two spiral screening shafts are arranged in a staggered manner.

4. A novel spiral screening machine according to claim 1, wherein: On the frame, at a position corresponding to the lower side of the free shaft of the spiral screening shaft assembly, a guide plate is provided.

5. A novel spiral screening machine according to claim 4, characterized in that: On the frame, at positions corresponding to both sides of the conveying surface of the belt conveyor, guard plates are provided. The receiving hopper is conical, and the lower end of the receiving hopper extends to a position between the two guard plates.

6. A novel spiral screening machine according to claim 1, characterized in that: Inside the screening box, at a position on the screening surface away from the feeding side, a baffle vertical plate is provided. On the top of the baffle vertical plate, a scraping inclined plate is provided, and the lower end of the scraping inclined plate extends to the side wall position of the innermost spiral screening shaft.

Images