Sealed pressure-reducing leak-proof ventilation conveyor belt device

Abstract

A sealed, pressure-reducing, leak-proof, and ventilated conveyor belt device comprises supporting plates provided with air holes and overlapping adjacent plates, chain links symmetrically mounted on both ends of each supporting plate and overlapping adjacent plates to form a chain, side plates symmetrically mounted on the top surface of each supporting plate and overlapping adjacent plates, a pair of air induced draft plates mounted above the air holes of each supporting plate, a Π-shaped air distribution hopper mounted on the top surface of the supporting plate around each pair of air induced draft plates and provided with side air holes, a spring seat, a spring, a floating plate that compresses the supporting plate under the action of the spring, a sealing groove, a sealing insert inserted into the sealing groove and symmetrically mounted on the bottom surface of each supporting plate and overlapping adjacent plates, and a sealing material. The conveyor belt of the present invention operates smoothly, has good material heat exchange performance, high heat exchange efficiency, large conveying capacity, and long service life, is conducive to standardized production, reduces production costs, prevents material leakage, has a low air leakage rate, and saves energy. It can be widely used in material conveying and drying processing equipment.

Description

Technical Field

[0001] The invention relates to a sealed, decompressed, leak-proof and ventilated conveyor belt device, which can be widely used in material conveying and drying processing equipment. Background Art

[0002] Heating or cooling ores, slag, metal particles, polymer materials, sludge, and agricultural products is a typical material handling process. Direct heat exchange using air as a carrier is particularly popular due to its high heat exchange efficiency and flexible layout. Existing conveyor belts in material conveying and drying equipment have the following deficiencies:

[0003] (1) Large air leakage. After entering the equipment, the heat exchange air moves disorderly, and the heat exchange efficiency with the materials on the conveyor belt is low. For example, the external water drying after washing ore, a production line with a processing capacity of 1000t / h, has an economic loss of 100,000 yuan / hour due to low thermal efficiency, and the loss exceeds 2 million yuan per day. In addition, the hot air directly contacts the conveyor chain, reducing the hardness of the conveyor chain and shortening its life.

[0004] (2) Material leakage. If there are no ventilation holes on the conveyor belt, the heat exchange air cannot penetrate the conveyor belt. If ventilation holes are installed on the conveyor belt, material leakage will occur, which will not only affect the operation of the equipment, but may also cause safety accidents.

[0005] (3) High wind pressure wastes energy and does not save energy. When materials accumulate on the conveyor belt, the wind pressure needs to be increased to ensure a certain degree of penetration. The increase in wind pressure not only increases the air leakage rate, causing a large amount of heat exchange air to bypass both sides of the conveyor belt, but also increases the fan pressure head and power consumption. Both aspects are not energy-saving. Summary of the Invention

[0006] The purpose of the present invention is to provide a sealed, decompression, leak-proof and ventilated conveyor belt device that has stable conveyor belt operation, good material heat exchange performance, high heat exchange efficiency, large conveying capacity, long service life, is conducive to standardized production, reduces production costs, prevents material leakage, has a low air leakage rate, and is energy-saving.

[0007] In order to achieve the above-mentioned purpose, the sealed, decompressed, and leak-proof ventilation conveyor belt device of the present invention includes a supporting plate with air holes in the middle and overlapping with each other, a chain link formed by symmetrically installing on both ends of each supporting plate by fastening bolts and overlapping with each other between adjacent ones, a side plate located in the middle of each supporting plate, symmetrically installed on the top surface of each supporting plate, and overlapping with each other between adjacent ones, a pair of air induced draft plates installed above the air holes of each supporting plate, a Π-shaped air distribution hopper installed on the top surface of the supporting plate around each pair of air induced draft plates and provided with a plurality of side air holes, a spring seat located below the supporting plate and symmetrically fixed on the body of the material conveying and drying processing equipment, a spring installed inside the spring seat, a floating plate partially located inside the spring seat and installed on the top of the spring, pressing the supporting plate under the action of the spring, a sealing groove symmetrically installed on the side of the spring seat, a sealing plug plate inserted into the sealing groove and symmetrically installed on the bottom surface of each supporting plate, and overlapping with each other between adjacent ones, and a sealing material installed inside the sealing groove.

[0008] The sealed, decompression-type, leak-proof and ventilated conveyor belt device of the present invention comprises each of the aforementioned supporting plates, chain links symmetrically mounted on both ends of each supporting plate, two side plates symmetrically mounted on the top surface of each supporting plate, and two sealing inserts symmetrically mounted on the bottom surface of each supporting plate to form a conveyor belt assembly.

[0009] The sealed decompression leak-proof ventilated conveyor belt device of the present invention comprises each conveyor belt assembly, wherein adjacent load-bearing plates, side plates and sealing insert plates are overlapped with each other along the length direction of the double-chain conveyor belt, and are connected end to end in sequence to form a double-chain conveyor belt.

[0010] The sealed decompression type leak-proof ventilation conveyor belt device of the present invention comprises a sealing groove which is open at the top and closed around the sides and the bottom.

[0011] The invention discloses a sealed, decompressed, leak-proof and ventilated conveyor belt device, wherein the angle α between the two side surfaces along the length direction of the conveyor belt and the bearing plate is 45° to 135°.

[0012] The invention discloses a sealed, decompressed, leak-proof and ventilated conveyor belt device, wherein the floating plate is a U-shaped floating plate.

[0013] The sealed, pressure-reducing, leak-proof, and ventilated conveyor belt device of the present invention operates as follows: The double-chain conveyor belt utilizes a bilaterally symmetrical chain structure, with two sets of chains located at either end of the conveyor belt's width. The chains provide traction, and the double-chain conveyor belts are connected end to end, moving in a closed loop. The upper portion of the conveyor belt is the working conveying path, while the lower portion is the return path. Adjacent load plates, side plates, and sealing inserts along the length of the double-chain conveyor belt are overlapped, ensuring material transport and forward and reverse redirection of the conveyor belt.

[0014] The invention of a sealed, decompressed, leak-proof ventilation conveyor belt device has a heat exchange air channel between the U-shaped floating plates. Under the action of the spring, the bottom of the carrier plate is pressed tightly, which plays a sealing role in the hot air channel.

[0015] The sealed, decompressed, leak-proof, and ventilated conveyor belt device of the present invention has the following advantages:

[0016] (1) The chain structure on both sides of the double-chain conveyor belt is conducive to the smooth operation of the conveyor belt and reduces deviation;

[0017] (2) Ventilate the middle of the double-chain conveyor belt to reduce or avoid contact with the hot air, especially when using hot air to heat the material;

[0018] (3) The chain is not in direct contact with high-temperature hot air and is not affected by the material temperature.

[0019] The invention discloses a sealed, pressure-reducing, leak-proof, and ventilated conveyor belt device, wherein the angle between the two side surfaces of the air distribution hopper along the length of the conveyor belt and the support plate is 45° to 135°. The two side surfaces of the air distribution hopper along the length of the conveyor belt can be perpendicular to the support plate, or they can be at a certain angle. For example, at an angle of 135°, the side surfaces are tilted upward, which is conducive to the material escaping from between the air distribution hoppers. However, the material has a certain pressure on the air distribution hopper, and the probability of leakage increases. For another example, at an angle of 45°, the material has essentially no pressure on the air distribution hopper, and the probability of leakage is further reduced. However, the material has greater difficulty escaping from between the air distribution hoppers, and the material accumulation angle is usually less than 45°, so this angle should not be less than 45°. Therefore, the angle α between the two side surfaces and the support plate is 45° to 135°.

[0020] A sealed, decompressed, leak-proof, and ventilated conveyor belt device was invented. The nominal pitch of the load-bearing plate, side plate, and sealing insert plate is equal to the chain pitch, which can ensure that the various parts in the same conveyor belt assembly remain relatively stationary, reducing internal wear.

[0021] This invention features a sealed, pressure-reducing, leak-proof, and ventilated conveyor belt. The air distribution hopper features multiple side air holes along both sides of the conveyor belt's length, reducing material pressure on the carrier plate's air holes and lowering wind resistance. During unloading, the material's movement is perpendicular to the carrier plate's air holes, ensuring that impact forces have no impact on the holes. The lack of holes along the conveyor belt's width ensures that during conveyor belt changes, especially during unloading, the impact force generated by the moving material will not press against the carrier plate's air holes or enter the air distribution hopper through the holes.

[0022] An invention of a sealed decompression type leak-proof ventilation conveyor belt device. To ensure that materials can smoothly escape between the air distribution hoppers, the minimum distance reserved between the air distribution hoppers should be greater than the maximum particle size of the materials, more than twice the particle size of the materials, which is more conducive to the escape of materials. When the angle between the two side surfaces of the air distribution hopper and the bearing plate is less than 90°, the distance between the air distribution hoppers should be further increased, and at the same time, it is necessary to ensure that the materials are not stuck by the inclined side surfaces.

[0023] An invention of a sealed decompression type leak-proof ventilation conveyor belt device. The sealing material in the sealing groove is a liquid that is not easy to volatilize or a solid material with good fluidity, such as water and quartz sand. To reduce the movement amount of the sealing material along with the sealing plug board, the end surface in the advancing direction of the sealing plug board is provided with a chamfer from the overlapping surface to the outside.

[0024] An invention of a sealed decompression type leak-proof ventilation conveyor belt device. The sealing groove is a groove body with an open top and a closed perimeter and bottom. The closed groove body can store the sealing material, and the open top facilitates inserting the sealing plug board deep into the sealing groove.

[0025] An invention of a sealed decompression type leak-proof ventilation conveyor belt device. Looking from the width direction, the floating plate is two parallel plates; looking from the length direction, it is also two parallel plates; looking from top to bottom, the overall structure of the floating plate is a square frame with a hole in the middle.

[0026] The sealed decompression type leak-proof ventilation conveyor belt device of the present invention has ventilation in the middle of the conveyor belt. When the heat exchange air penetrates the conveyor belt, it mainly passes through three channels: the air holes on the bearing plate, the air duct between the air guiding plate and the air distribution hopper, and the air holes on the side surface of the air distribution hopper. To reduce the air resistance and improve the penetration ability of the heat exchange air, a ventilation structure of the bearing plate and the Π-shaped air distribution hopper is adopted. The air holes on the bearing plate are located between the two end side plates to ensure that the heat exchange air flows along the required path. The materials on the bearing plate are directly in contact with the hot air, the hot air has strong penetration ability, the materials have good heat exchange performance, and the heat exchange efficiency is high. To ensure the uniformity of material heat exchange, the air distribution hoppers should be evenly arranged, so that the air holes on the bearing plate are parallel to each other.

[0027] The sealed decompression type leak-proof ventilation conveyor belt device of the present invention adopts a sealing groove, sealing material and sealing plug board structure, reducing or avoiding the contact between the drive chain components on both sides and the heat exchange air. The chain is not affected by high temperature, has a low temperature, and compared with a single chain, the two chains have a strong bearing capacity, a large conveying capacity, good working performance, and a long service life.

[0028] The sealed decompression type leak-proof ventilation conveyor belt device of the present invention. Each conveyor belt component has the same structure, which is conducive to standardized production and reduces production costs.

[0029] The sealed, pressure-reducing, leak-proof ventilated conveyor belt device of the present invention utilizes an air distribution hopper and induced draft plates. The air distribution hopper covers the air holes on the carrier plate, preventing material from falling through the holes and leaking. At the same time, the side air holes of the air distribution hopper, due to wind flow, also blow away material near the side holes, preventing it from entering the side holes. The air holes on both sides of the air distribution hopper are oblong or circular holes, and are preferably arranged in a matrix of multiple rows and columns. To prevent material leakage, the pore diameter should be smaller than the average diameter of the material. Even if the pore diameter of the air distribution hopper is smaller than the average diameter of the material, some fine powder will always be carried along with it. To prevent material from falling through the air holes on the carrier plate, two induced draft plates installed inside the air distribution hopper block the material from falling. To ensure that trace amounts of fine material passing through the air distribution hopper are blocked by the induced draft plates, the highest position of the air holes on both sides of the air distribution hopper should be lower than the top surface of the induced draft plates. The air distribution hopper blocks pressure transfer between the materials, and with the induced draft plates blocking them, material leakage from the entire conveyor belt is prevented. Therefore, the present invention adopts various means to ensure ventilation without material leakage and prevent material leakage.

[0030] A sealed, decompressed, leak-proof and ventilated conveyor belt device is invented. To achieve sealing, the lower surfaces of all the supporting plates are in the same plane, the sealing plug plates are inserted into the sealing grooves to the same depth, and adjacent sealing plug plates overlap each other along the length of the conveyor belt to avoid air leakage and reduce the air leakage rate.

[0031] The invention of a sealed, pressure-reducing, leak-proof, ventilated conveyor belt device utilizes a wind scoop and induced draft plate structure to reduce wind pressure, aerodynamics, and energy savings. The heat exchange airflow is directed perpendicularly or at an angle to the material's gravity, rather than parallel to it. This reduces the impact of material pressure. The improved heat exchange efficiency saves energy, and the reduced wind pressure also saves energy.

[0032] To sum up, the sealed, decompressed, leak-proof and ventilated conveyor belt device of the present invention has a smooth conveyor belt operation, good material heat exchange performance, high heat exchange efficiency, large conveying capacity, and long service life. It is conducive to standardized production, reduces production costs, prevents material leakage, has a low air leakage rate, and saves energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The present invention will be further described below with reference to the accompanying drawings and embodiments thereof.

[0034] Figure 1 It is a structural schematic diagram of the present invention;

[0035] Figure 2 yes Figure 1 AA section view in;

[0036] Figure 3 yes Figure 1 Top view in

[0037] Figure 4 yes Figure 1A local enlarged view of location I in FIG. DETAILED DESCRIPTION

[0038] exist Figures 1 to 4 In the embodiment of the present invention, the sealed, decompression, leak-proof and ventilated conveyor belt device includes a supporting plate 1 with air holes a in the middle and overlapping with each other, chain links 2 symmetrically installed on both ends of each supporting plate by fastening bolts 12 and overlapping with each other to form a chain, side plates 3 located in the middle of each supporting plate, symmetrically installed on the top surface of each supporting plate, and overlapping with each other, a pair of air induced draft plates 4 installed above the air holes a of each supporting plate, a Π-shaped air distribution hopper 5 installed on the top surface of the supporting plate around each pair of air induced draft plates and provided with a plurality of side air holes b, a spring seat 6 located below the supporting plate and symmetrically fixed on the body of the material conveying and drying equipment, a spring 7 installed inside the spring seat, a floating plate 8 partially located inside the spring seat and installed on the top of the spring, pressing the supporting plate under the action of the spring, a sealing groove 9 symmetrically installed on the side of the spring seat, a sealing plug plate 10 inserted into the sealing groove and symmetrically installed on the bottom surface of each supporting plate, overlapping with each other, and a sealing material 11 installed inside the sealing groove.

[0039] The sealed, decompression-type, leak-proof and ventilated conveyor belt device of the present invention comprises each of the aforementioned supporting plates, chain links symmetrically mounted on both ends of each supporting plate, two side plates symmetrically mounted on the top surface of each supporting plate, and two sealing inserts symmetrically mounted on the bottom surface of each supporting plate to form a conveyor belt assembly.

[0040] The sealed decompression leak-proof ventilated conveyor belt device of the present invention comprises each conveyor belt assembly, wherein adjacent load-bearing plates, side plates and sealing insert plates are overlapped with each other along the length direction of the double-chain conveyor belt, and are connected end to end in sequence to form a double-chain conveyor belt.

[0041] The sealed decompression type leak-proof ventilation conveyor belt device of the present invention comprises a sealing groove which is open at the top and closed around the sides and the bottom.

[0042] The invention discloses a sealed, decompressed, leak-proof and ventilated conveyor belt device, wherein the angle α between the two side surfaces along the length direction of the conveyor belt and the bearing plate is 45° to 135°.

[0043] The invention discloses a sealed, decompressed, leak-proof and ventilated conveyor belt device, wherein the floating plate is a U-shaped floating plate.

[0044] In summary, the above only describes the preferred embodiments of the present invention. It should be pointed out that the present invention is not limited to the above-mentioned specific embodiments, and the devices and structures not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art, without departing from the scope of the technical solution of the present invention, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention, shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A sealed, decompressed, leak-proof, and ventilated conveyor belt device, characterized in that: It includes a bearing plate with air holes in the middle and adjacent overlapping each other, chain links symmetrically installed on both ends of each bearing plate by fastening bolts and overlapping each other to form a chain, side plates located in the middle of each bearing plate, symmetrically installed on the top surface of each bearing plate, and overlapping each other, a pair of air induced draft plates installed above the air holes of each bearing plate, Π-shaped air distribution hoppers installed on the top surface of the bearing plate around each pair of air induced draft plates and provided with a number of side air holes, a spring seat located below the bearing plate and symmetrically fixed on the body of the material conveying and drying equipment, a spring installed inside the spring seat, a floating plate partially located inside the spring seat and installed on the top of the spring, pressing the bearing plate under the action of the spring, a sealing groove symmetrically installed on the side of the spring seat, a sealing plug plate inserted into the sealing groove and symmetrically installed on the bottom surface of each bearing plate, and overlapping each other, and a sealing material installed inside the sealing groove.

2. The sealed, decompression, leak-proof and ventilated conveyor belt device according to claim 1, characterized in that: A conveyor belt assembly is composed of each bearing plate, chain links symmetrically installed on both ends of each bearing plate, two side plates symmetrically installed on the top surface of each bearing plate, and two sealing inserts symmetrically installed on the bottom surface of each bearing plate.

3. The sealed, decompression, leak-proof and ventilated conveyor belt device according to claim 2, characterized in that: Each conveyor belt assembly is overlapped with adjacent load-bearing plates, side plates and sealing insert plates along the length direction of the double-chain conveyor belt, and is connected end to end in sequence to form a double-chain conveyor belt.

4. The sealed, decompression, leak-proof and ventilated conveyor belt device according to claim 1, characterized in that: The sealing groove is a groove body with an open top and closed sides and bottom.

5. The sealed, decompression, leak-proof and ventilated conveyor belt device according to claim 1, characterized in that: The angle between the two side surfaces of the Π-shaped air distribution hopper along the length direction of the conveyor belt and the bearing plate is 45° to 135°.

6. The sealed, decompression, leak-proof and ventilated conveyor belt device according to claim 1, characterized in that: The floating plate is a U-shaped floating plate.

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