A high-viscosity material anti-sticking belt conveyor

Abstract

The present invention relates to a high-viscosity material anti-sticking belt conveyor, which solves the problem that when the traditional belt conveyor conveys high-viscosity materials, the materials are easily adhered to the idlers, resulting in belt deviation or even tightness jamming of the machine, and it is necessary to frequently stop the machine for manual cleaning. A belt is provided on the frame of this device. The upper part of the belt is the loading section for conveying materials, and the lower part of the belt is the return section. A number of idlers are provided below the return section. A supporting surface is provided on the bottom surface of the loading section, and both sides of the supporting surface slope upwards. The idler includes an idler shaft rod. One or more left rollers are sleeved on the left end of the idler shaft rod, and one or more right rollers are sleeved on the right end of the idler shaft rod. The distance between the opposite sides of the innermost left roller and the right roller is not less than the width of the loading supporting surface. In the present invention, the middle part of the belt loading section loads materials, and both sides are tilted upwards and suspended. Both sides of the return section are supported by rollers and the middle part is suspended, reducing the sticking of materials on the idlers and eliminating the need for frequent shutdown cleaning, which can meet the long-term stable operation.

Description

Technical Field

[0001] The present invention relates to a conveying device, and particularly to an anti-sticking belt conveyor for highly viscous materials. Background Art

[0002] In the process of industrial production, there are some highly viscous materials that need to be conveyed, such as viscous filter cakes (such as kaolin), biological fermentation materials (such as soybean meal), high-fat coconut flakes, etc. Highly viscous materials can be conveyed by a belt conveyor. When the belt of the belt conveyor rotates to the upper part, it is the loading section, and when it rotates to the lower part, it is the return section. When the traditional belt conveyor conveys highly viscous materials, the loading section of the belt will adhere to the materials, and the materials will adhere to the lower idlers in the return section of the belt. The materials adhered to the belt of the belt conveyor will cause deviation and frequent shutdown for manual cleaning. A large amount of materials adhere to the return section, and it is easy to cause material accumulation and falling. As a result, the belt conveyor requires frequent manual cleaning during use, with high labor intensity, poor working conditions, and low working efficiency.

[0003] Some engineers also set scraping plates at the conversion point between the loading section and the return section of the belt conveyor to scrape off the materials adhered to the belt. However, the scraping plates cannot completely clean the adhered materials. When the belt conveyor operates in the return section, it will still transfer and adhere the materials to the lower idlers in the return section, making the idlers run unbalanced, resulting in belt deviation or even tightness jamming, and frequent shutdown for manual cleaning is required. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem that when the traditional belt conveyor conveys highly viscous materials, it is easy for the materials to adhere to the idlers, making the idlers run unbalanced, resulting in belt deviation or even tightness jamming, and frequent shutdown for manual cleaning is required. The present invention provides an anti-sticking belt conveyor for highly viscous materials.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a high-viscosity material anti-sticking belt conveyor, including a frame, a belt is arranged on the frame, the upper part of the belt is a material-carrying section for conveying materials, the lower part of the belt is a return section, and a plurality of rollers are arranged below the return section, characterized in that: the frame is provided with a supporting surface on the bottom surface of the material-carrying section of the belt, the middle part of the supporting surface is a material-carrying surface corresponding to the lateral material-carrying width of the belt, and the two sides are upwardly inclined and raised empty-loaded surfaces corresponding to the empty-loaded width of the two sides of the belt, and the rollers include roller shafts, the left end of the roller shaft is provided with one or more left rollers, and the right end of the roller shaft is provided with one or more right rollers, and the spacing between the innermost left roller and the opposite side of the right roller is not less than the width of the material-carrying surface. The material-carrying section of the belt is loaded in the middle and empty on both sides. In the device, the belt-carrying section is supported by the supporting surface, so as to avoid the unstable vibration caused by the roller surface support, and avoid the roller jamming phenomenon that may be caused by the roller surface support. The support surface can be a shallow U-shaped with a plane in the middle and slopes on both sides; it can also be a V-shaped or an arc with an inner arc facing upwards; it can also be a combination of a concave arc surface in the middle and inclined planes on both sides, or other structures with both sides higher than the middle. Through the function of the support surface, the unloaded parts on both sides of the belt loading section are slightly tilted upward and lifted, and the belt surface of the belt loading section forms a shallow U-shaped structure. The lower end of the feed hopper at the front end of the belt loading section is aligned with the loading width of the middle section of the belt loading section. The feeding speed of the feed hopper and the belt running speed are adjusted and set to concentrate the materials within the loading width of the belt loading section. The materials usually do not roll to the sides. Even if a small part rolls down, it will return to the middle loading width because the unloaded width on both sides of the belt is lifted, ensuring that the two sides of the belt are basically not sticky with materials. The rollers of this device are different from the commonly used through rollers. The middle section of the rollers does not contact the belt. When the belt runs to the return section, the rollers support the belt from both sides through the left and right rollers on both sides. The distance between the left and right rollers is greater than the material-carrying width in the middle of the belt, so as to avoid the material adhering to the belt from being continuously transferred to the left and right rollers as much as possible. Since the width of the left and right rollers is extremely small compared to the width of the through rollers, even if there is slight sticking, it is easy to fall off automatically during the rotation process, and it does not affect the long-term continuous and stable operation. The rollers of this device have less sticking materials, stable support, and do not need to be frequently stopped for cleaning. It only needs to be cleaned before starting or after shutting down every day to meet the long-term stable operation.

[0006] Preferably, a scraper is provided at the starting end of the return section of the belt. After the belt unloads from the material-carrying section and enters the return section, a scraper is provided to scrape off the material adhered to the belt.

[0007] Preferably, the scraping plate includes a hard scraping plate and a soft scraping plate. The hardness of the hard scraping plate is greater than or equal to that of the belt, and the hardness of the soft scraping plate is less than that of the belt. One or more groups of scraping plates are arranged along the return direction of the belt. Each group of scraping plates is arranged with one or more hard scraping plates first and then one or more soft scraping plates along the return direction of the belt. Multiple-pass scraping with hard and soft scraping plates can remove most of the materials on the surface of the belt, and a small amount of remaining adhered materials are also in a balanced and stable state and will not easily fall off. The scraping plate not only removes a large amount of attached materials during the return journey but also reduces the self-weight of the belt in the return section, ensuring that the support through the spaced support of the left roller and the right roller can meet the support requirements of the return section of the belt.

[0008] Preferably, the hard scraping plate and / or the soft scraping plate are made of non-metallic materials, and the non-metallic materials can be nylon, resin, etc.

[0009] Preferably, the middle plane width of the support surface is 1 / 3 to 2 / 3 of the width of the belt.

[0010] Preferably, both ends of the roller shaft are fixed on the frame, and the left roller and the right roller are rotatably sleeved on the roller shaft. The roller shaft is a non-rotating fixed part, and the roller is a rotating part. With such a structure, when a small amount of materials in the return section fall on the roller shaft, since the roller shaft is a non-rotating part, it will not affect the operation of the device and is easy to clean. The roller can be a structure of a bearing. The inner ring of the roller is sleeved and fixed on the roller shaft, the outer ring rotates, and rolling elements or sliding elements such as rollers or balls are arranged between the inner ring and the outer ring.

[0011] Preferably, the number of the left roller and the right roller is the same, and the left roller and the right roller are symmetrically arranged at both ends of the roller shaft.

[0012] Preferably, the slopes of the two sides of the loading section of the belt that are inclined and lifted do not exceed 30 degrees, and / or the lifting height does not exceed 80 mm. The two sides of the loading section of the belt are supported by the no-load support surface of the support surface, and the width of the loading section of the belt is equal to or less than the width of the support surface.

[0013] Preferably, soft side guards are respectively arranged on both sides of the loading section of the belt, a dust cover is arranged at the upper end of the loading section, and a receiving tray is arranged below the return section of the belt.

[0014] Preferably, a driving belt roller is arranged at the end of the loading section, a driven belt roller is arranged at the starting end of the loading section, and the driving belt roller and the driven belt roller can be longitudinally tensioned and adjusted.

[0015] In the middle of the material-loading section of the belt of the present invention, materials are loaded, and both sides are tilted upwards and lifted overhead. On the return section, both sides are supported by rollers and the middle is lifted overhead, reducing the adhesion of idlers to materials. The idler support is stable and does not require frequent shutdowns for cleaning, and can meet long-term stable operation. The scraping plate at the starting point of the return section not only removes a large amount of attached materials on the return journey, but also reduces the self-weight of the belt in the return section, ensuring that the support through the interval between the left roller and the right roller can meet the support requirements of the belt return section. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present invention.

[0017] Figure 2 is a schematic structural diagram of the present invention in the side view direction.

[0018] Figure 3 is a schematic structural diagram of the idler of the present invention.

[0019] Figure 4 is a schematic structural diagram of the installation structure of the hard scraping plate of the present invention.

[0020] Figure 5 is a schematic structural diagram of the installation structure of the soft scraping plate of the present invention.

[0021] In the figure: 1, frame; 2, driven belt roller; 3, belt; 4, material-loading section; 5, return section; 6, driving belt roller; 7, idler; 8, feed hopper; 9, discharge hopper; 10, hard scraping plate; 11, soft scraping plate; 12, flexible edge; 13, dust cover; 14, receiving tray; 15, supporting surface; 16, idler shaft rod; 17, left roller; 18, right roller; 19, hard scraping plate seat; 20, soft scraping plate seat; 21, splint. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The present invention will be further described below through specific embodiments in conjunction with the drawings.

[0023] Embodiment: A belt conveyor for preventing adhesion of highly viscous materials, as Figure 1 , 2As shown in the figure. This device includes a frame 1. The top surface of the frame is inclined and is provided with a belt 3 for conveying viscous materials from low to high. The belt can also be horizontally conveyed or conveyed from high to low according to the material conveying requirements. The lower end of the belt is sleeved with a driven belt roller 2, and the upper end is sleeved with a driving belt roller 6. Both the driven belt roller 2 and the driving belt roller 6 can be longitudinally adjusted along the conveying direction for tensioning. The upper part of the belt 3 is a loading section 4 for conveying materials, and the lower part of the belt is a return section 5. A number of idler rollers 7 are provided below the return section. The starting end of the loading section 4 is provided with a feed hopper 8, and the end is provided with a discharge hopper 9. Soft side guards 12 are respectively arranged on both sides of the loading section 4 of the belt 3, and a dust-proof cover 13 is arranged at the upper end of the loading section. A receiving tray 14 is provided below the return section of the belt. A scraping plate is arranged at the starting end of the return section of the belt. The scraping plate includes a hard scraping plate and a soft scraping plate arranged in sequence along the return direction. One or more soft scraping plates are provided. The hard scraping plate has a hardness greater than or equal to that of the belt, and the hardness of the soft scraping plate is less than that of the belt.

[0024] A scraping plate is arranged at the starting end of the return section 5 of the belt. The scraping plate includes a hard scraping plate 10 and two soft scraping plates 11 arranged in sequence along the conveying direction. The hard scraping plate has a hardness greater than or equal to that of the belt, and the hardness of the soft scraping plate is less than that of the belt. Both the hard scraping plate and the soft scraping plate are made of non-metallic materials, which can be non-metallic materials such as nylon or resin. As Figure 4 , 5 shown in the figure, the hard scraping plate 10 is installed on the frame 1 through a hard scraping plate seat 19, and the hard scraping plate 10 and the hard scraping plate seat 19 are fixed by bolts; the soft scraping plate 11 is installed on the frame through a soft scraping plate seat 20. After the soft scraping plate seat 20 and the clamping plate 21 clamp the soft scraping plate 11, they are fixed by bolts.

[0025] As Figure 2 shown in the figure, the frame 1 is provided with a supporting surface 15 at the bottom surface of the loading section 4 of the belt 3. The middle part of the supporting surface is a plane, and the two sides are inclined upward slopes. The width of the middle plane of the supporting surface is 1 / 2 of the width of the belt 3. The belt width is 1.2 meters, and the slope of the two side slopes of the supporting surface is 12.5 degrees.

[0026] As Figure 3 shown in the figure, the idler roller 7 includes an idler roller shaft 16. Two left rollers 17 are sleeved on the left end of the idler roller shaft, and two right rollers 18 are sleeved on the right end of the idler roller shaft. The left rollers and the right rollers are symmetrically arranged at both ends of the idler roller shaft. The distance between the opposite side surfaces of the innermost left roller 17 and the right roller 18 is not less than the width of the middle plane of the supporting surface. The two ends of the idler roller shaft 16 are fixed on the frame 1, and the left rollers and the right rollers are rotatably sleeved on the idler roller shaft.

[0027] Through the action of the supporting surface, both sides of the belt's material-loading section are slightly turned upwards, forming a shallow U-shaped structure on the belt surface of the material-loading section. Different from the deep U-shaped three-roller structure, the inclined slopes on both sides of the belt in this solution are relatively shallow, which is conducive to the rolling of materials and reduces the materials falling on both sides of the belt, rather than being used to hold the materials on three sides to increase the conveying capacity. The lower end of the front feed hopper of the belt's material-loading section is aligned with the middle section of the belt's material-loading section. The feeding speed of the feed hopper and the running speed of the belt are adjusted and set so that the materials are concentrated in the middle of the belt's material-loading section and will not roll to both sides, and basically no materials will adhere to both sides of the belt. The roller of this device is different from the common through-roller. The middle section of the roller does not contact the belt. When the belt runs to the return section, the roller supports the belt from both sides through the left roller and the right roller on both sides. The distance between the left roller and the right roller is greater than the material-loading width in the middle of the belt, so as to avoid as much as possible the materials adhering to the belt from continuously transferring to the left roller and the right roller. Since the width of the left roller and the right roller is extremely small compared to the width of the through-roller, even if there is slight material adhesion, it is easy to automatically fall off during the rotation process and does not affect the long-term continuous and stable operation.

Claims

1. A high-viscosity material anti-sticking belt conveyor, comprising a frame, a belt is provided on the frame, the upper part of the belt is a material-carrying section for conveying materials, the lower part of the belt is a return section, and a plurality of idlers are provided below the return section, and it is characterized in that: The bottom surface of the loading section of the belt on the frame is provided with a supporting surface. The middle part of the supporting surface is a loading supporting surface corresponding to the transverse loading width of the belt, and the two sides are unloaded supporting surfaces that slope upward and correspond to the unloaded widths on both sides of the belt. The idler roller includes an idler roller shaft. One or more left rollers are sleeved on the left end of the idler roller shaft, and one or more right rollers are sleeved on the right end of the idler roller shaft. The distance between the opposite side surfaces of the innermost left roller and the right roller is not less than the width of the loading supporting surface; the middle section of the idler roller does not contact the belt. When the belt runs to the return section, the belt is supported from both sides by the left and right rollers on both sides, so as to avoid as much as possible the material adhered to the belt from continuously transferring to the left and right rollers. Since the widths of the left and right rollers are extremely small compared to the width of the through roller, even if there is slight material adhesion, it is easy to automatically fall off during rotation; a scraping plate is arranged at the starting end of the return section of the belt; the width of the loading supporting surface of the supporting surface is 1 / 3 - 2 / 3 of the width of the belt.

2. The high-viscosity material anti-sticking belt conveyor according to claim 1, characterized in that: The scraping plate includes a hard scraping plate and a soft scraping plate. The hardness of the hard scraping plate is greater than or equal to the hardness of the belt, and the hardness of the soft scraping plate is less than the hardness of the belt. One or more groups of scraping plates are arranged along the return direction of the belt. Each group of scraping plates first arranges one or more hard scraping plates and then one or more soft scraping plates along the return direction of the belt.

3. A high-viscosity material anti-sticking belt conveyor according to claim 1, characterized in that: Both ends of the idler roller shaft are fixed on the frame, and the left roller and the right roller are rotatably sleeved on the idler roller shaft.

4. A high-viscosity material anti-sticking belt conveyor according to claim 1 or 2 or 3, characterized in that: The number of the left rollers and the right rollers is the same, and the left rollers and the right rollers are symmetrically arranged at both ends of the idler roller shaft.

5. A high-viscosity material anti-sticking belt conveyor according to claim 1 or 2 or 3, characterized in that: The slopes of the two sides of the loading section of the belt that are inclined and lifted do not exceed 30 degrees, and / or the lifting height does not exceed 80 mm.

6. A high-viscosity material anti-sticking belt conveyor according to claim 1 or 2 or 3, characterized in that: Soft side guards are respectively arranged on both sides of the loading section of the belt, a dust cover is arranged at the upper end of the loading section, and a receiving tray is arranged below the return section of the belt.

7. A high-viscosity material anti-sticking belt conveyor according to claim 1 or 2 or 3, characterized in that: A driving belt roller is arranged at the end of the loading section, and a driven belt roller is arranged at the starting end of the loading section. The driving belt roller and the driven belt roller can be longitudinally tensioned and adjusted.

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