Standard knot structure of energy-saving air cushion belt conveyor

Abstract

According to the standard knot structure of the energy-saving air cushion belt conveyor, air is compressed into a first shell through an air collecting and filtering device, the air enters a first air chamber and a second air chamber through air chamber air inlets, and air films are formed between conveying belts arranged on disc grooves to support the conveying belts; the gas collecting and filtering device collects and filters gas overflowing into the first shell from the disc groove, and the filtered gas is compressed into the first shell to form cyclic utilization of the air. According to the scheme, modularized combined installation of the air cushion belt conveyor can be achieved, and the problem that an upper cavity and a lower cavity of a totally-closed air cushion belt conveyor cannot be communicated with each other is solved. And secondly, the purpose of recycling air to the maximum extent can be guaranteed, and compared with an existing device, the gas recycling efficiency in the operation process is greatly improved, recycling of circulating gas is achieved, and the purposes of energy conservation and environment protection are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of belt conveyors, and in particular to a standard section structure of an energy-saving air cushion belt conveyor. Background Art

[0002] Air cushion belt conveyor is a new type of belt conveyor proposed by Dutch scientists in the 1970s. The difference from ordinary belt conveyors is that air cushion belt conveyors use air chambers instead of rollers to play a supporting role. Air cushion belt conveyors have the advantages of high efficiency, economy and environmental protection. With the deepening of research and improvement of structure, the application field of air cushion belt conveyors has gradually expanded. It has begun to be used to transport phosphates, gravel, ore and other materials with high density. Air cushion belt conveyors are gradually developing in the direction of energy saving, long distance and large conveying capacity.

[0003] In order to meet the current energy-saving and environmental protection requirements, air cushion belt conveyors are usually designed to be fully enclosed. Since the upper and lower cavities cannot be interconnected, the air in the lower cavity cannot be discharged during operation, which can easily act in reverse on the belt, thereby increasing the belt resistance and reducing the transmission efficiency. In addition, the air circulation recovery efficiency of existing products on the market is low and the energy-saving effect is poor.

[0004] Therefore, in order to solve the above technical problems, a utility model patent with publication number "CN204416306U" discloses "an energy recovery type double air chamber structure of air cushion belt conveyor", see Figure 1 It includes an air chamber bracket 1, a double-layer air chamber, an air supply pipe 9, and a fan 10. The fan 10 is connected to the air inlet of the air supply pipe 9, and the air outlet of the air supply pipe 9 is connected to the double-layer air chamber. The double-layer air chamber includes a lower air chamber 2, a return belt 3, an intermediate recovery layer air chamber 4, an upper air chamber 5, an upper belt 6, and an air supply pipe 9. The upper air chamber 5 is located at the upper part of the intermediate recovery layer air chamber 4, and the lower air chamber 2 is located at the lower part of the intermediate recovery layer air chamber 4. The gas in the lower air chamber 2 overflows from both sides of the upper belt 6 through recovery, thereby achieving the purpose of reuse while reducing the amount of gas in the upper air chamber.

[0005] However, the existing two-layer air chamber is independently arranged and cannot be interconnected, which will result in poor sealing and large gas loss during operation.

[0006] At the same time, the device can only recycle the air in the lower air chamber, and the air overflowing from the upper air chamber is directly discharged to the outside, which cannot achieve maximum air recycling.

[0007] It can be seen that the existing air cushion belt conveyor has the technical problem of low reliability due to the above-mentioned technical defects. It can be seen that how to improve the reliability of the air cushion belt conveyor is a problem that needs to be solved in this field. Summary of the invention

[0008] In view of the technical problem that the existing air cushion belt conveyor has low reliability, the purpose of the present invention is to provide an energy-saving air cushion belt conveyor standard section structure, which can further improve the reliability of the air cushion belt conveyor and effectively overcome the problems existing in the prior art.

[0009] In order to achieve the above-mentioned object, the present invention provides a standard section structure of an energy-saving air cushion belt conveyor, wherein the standard section structure is composed of a plurality of standard section cavities connected to each other, wherein the standard section cavity comprises an air collecting and filtering device, a first shell, a second shell, and a first air chamber and a second air chamber, wherein the air collecting and filtering device is arranged on the first shell, and the second shell is arranged inside the first shell, and an air chamber air inlet is arranged on the second shell and is respectively connected with the first air chamber and the second air chamber, wherein the air collecting and filtering device compresses air into the first shell, and the air enters into the first air chamber and the second air chamber through the air chamber air inlet;

[0010] The first air chamber and the second air chamber are symmetrically arranged inside the second shell body, and the first air chamber and the second air chamber are respectively provided with disc grooves for air overflow, and an air film is formed between the air overflowing from the disc grooves and the conveyor belt arranged on the disc grooves to support the conveyor belt;

[0011] The gas collecting and filtering device collects and filters the gas overflowing from the disc slot into the first shell, and the filtered gas is compressed into the first shell to form a circulation of air.

[0012] Furthermore, two ends of the first shell are respectively provided with connection plates for connecting with adjacent standard section cavities.

[0013] Furthermore, an air inlet is provided on the first shell, and gas recovery ports are provided at both ends of the air inlet, and the air inlet and the gas recovery port are respectively connected to the gas collecting and filtering device.

[0014] Furthermore, the air collecting and filtering device includes an installation platform, a high-pressure centrifugal fan, an air collecting and filtering assembly and a ventilation connecting pipe. The air collecting and filtering assembly is arranged on the first shell through the installation platform, and its two ends are connected to the gas recovery port of the first shell through the ventilation connecting pipe to collect and filter the air in the first shell. The high-pressure centrifugal fan is respectively connected to the air collecting and filtering assembly and the first shell through the ventilation connecting pipe. The air filtered by the air collecting and filtering assembly is transported to the high-pressure centrifugal fan through the ventilation connecting pipe, and compressed air is injected into the first shell through the high-pressure centrifugal fan.

[0015] Furthermore, the distance between the gas recovery ports is greater than that of the second shell.

[0016] Furthermore, air chamber sealing ribs are provided at both ends of the second shell, and the air chamber sealing ribs are connected to the inner side of the first shell to form an integrated structure, and a closed air chamber is formed between the first shell and the second shell between the air chamber sealing ribs at both ends.

[0017] Furthermore, the length of the second shell is smaller than that of the first air chamber and the second air chamber.

[0018] Furthermore, sealing plates are provided at the ends of the first air chamber and the second air chamber in the standard section cavity of the first and tail sections of the standard section structure.

[0019] Furthermore, a structural platform is respectively provided at the bottom of the several standard section cavities, and the structural platform includes a maintenance platform and supporting legs, and the supporting legs are symmetrically arranged at the bottom of the maintenance platform to support the maintenance platform and the standard section cavities arranged on the maintenance platform.

[0020] Furthermore, protective railings are provided at both ends of the maintenance platform.

[0021] The energy-saving air cushion belt conveyor standard section structure provided by the present invention solves the problem that the upper and lower cavities of the fully enclosed air cushion belt conveyor cannot be interconnected by arranging two layers of air chambers in the same shell.

[0022] Secondly, the gas in the two layers of air chambers in this scheme can be recycled, which can ensure the purpose of air recycling to the maximum extent. Compared with the existing device, the gas recovery efficiency during operation is greatly improved, the recycling and reuse of the circulating gas is realized, and the purpose of energy saving and environmental protection is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0024] Figure 1 A schematic diagram of an energy recovery type double air chamber structure of an existing air cushion belt conveyor;

[0025] Figure 2 This is a plan view of the standard section structure of this energy-saving air cushion belt conveyor;

[0026] Figure 3 It is a schematic diagram of the overall structure of the standard section cavity in the present invention;

[0027] Figure 4 It is a structural cross-sectional view of a standard section cavity in the present invention;

[0028] Figure 5 It is a schematic diagram of the second shell of the standard section cavity in the present invention;

[0029] Figure 6 This is a structural schematic diagram of the first and tail sections of the standard section structure of this energy-saving air cushion belt conveyor.

[0030] The following is a description of the components in the accompanying drawings:

[0031] 100. Standard section cavity 110. First shell 111. Connecting plate 112. Air inlet 113. Gas recovery port 120. Second shell 121. First air chamber air inlet 122. Second air chamber air inlet 123. Air chamber sealing rib 130. First air chamber 131. First disc groove 140. Second air chamber 141. Second disc groove 150. Gas collecting filter device 151. Installation platform 152. High-pressure centrifugal fan 153. Gas collecting filter assembly 154. Ventilation connecting pipe 200. Structural platform 210. Maintenance platform 220. Support legs 230. Guardrail 300. Sealing cover. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below with reference to specific diagrams.

[0033] The existing air cushion belt conveyor has a technical problem of poor sealing and large gas loss during operation due to the fact that the upper air chamber and the lower air chamber cannot be connected. To address this technical problem, the present invention provides an energy-saving air cushion belt conveyor standard section structure, which is composed of a plurality of standard section cavities 100 connected to each other.

[0034] See also Figure 2-Figure 4 Several standard section cavities 100 respectively include an air collecting and filtering device 150, a first shell 110, a second shell 120, a first air chamber 130 and a second air chamber 140. The second shell 120 is arranged inside the first shell 110. The first air chamber 130 and the second air chamber 140 are respectively symmetrically arranged inside the second shell 120. The first air chamber 130 and the second air chamber 140 respectively cooperate with the upper conveyor belt and the lower conveyor belt to support the upper conveyor belt and the lower conveyor belt.

[0035] A gas inlet 112 is provided in the middle of the top of the first shell 110, and gas recovery ports 113 are provided at both ends of the air inlet 112. The gas inlet 112 and the gas recovery port 113 are respectively connected to the gas collecting and filtering device 150. The gas collecting and filtering device 150 recovers and filters the air in the first shell 110 through the gas recovery port 113, and the filtered air is then input into the first shell 110 through the gas inlet 112, thereby ensuring that the air is recycled to the maximum extent. Compared with the existing device, the gas recovery efficiency during operation is greatly improved, and the recycling and reuse of the circulating gas is realized.

[0036] At the same time, connecting plates 111 are provided at both ends of the first shell 110 , which are used to connect with the adjacent standard section cavity 100 .

[0037] Secondly, the standard section cavity 100 is positioned by connecting the front and rear positioning devices to ensure the installation accuracy of the two standard section cavities.

[0038] The positioning device includes a positioning connecting rod and a positioning connecting hole. The positioning connecting rod is distributed on the end face of the standard section cavity 100, and the positioning connecting holes are correspondingly distributed on the end faces of the adjacent standard section cavity 100. Through the cooperation of the positioning connecting rod and the positioning connecting hole, the precise assembly connection of the two standard sections can be achieved.

[0039] In some embodiments, the positioning device may be a pin and a pin hole. Through the cooperation of the pin and the pin hole, the precise assembly connection of the two standard sections can be achieved. This solution does not limit the structure and distribution structure of the positioning device, and the specific structure can be determined according to actual conditions.

[0040] See also Figure 5 The second shell 120 is arranged inside the first shell 110, and air chamber sealing ribs 123 are respectively provided at both ends of the second shell 120. The air chamber sealing ribs 123 are circular rings cut from two thick steel plates.

[0041] The inner side of the ring is welded to the second shell 120, and the outer side is welded to the first shell 110. The two rings at both ends of the second shell 120 support the second shell 120, and the middle parts of the two rings at both ends form a closed air chamber with the first shell 110 and the second shell 120 to ensure that the compressed air from the external fan generates sufficient gas pressure after entering and supplies air to the first air chamber 130 and the second air chamber 140.

[0042] At the same time, on the outside of the sealing rib 123, since the second shell 120 is shorter than the first shell 110, a gap is formed between the upper and lower air chambers, and the gas discharged from the disc slot holes is finally gathered in the air chamber formed by the two standard sections connected, and the purpose of efficient gas recovery and utilization is achieved through the gas collecting and filtering device 150.

[0043] The upper and lower layers on both sides of the second shell 120 are respectively provided with a first air chamber air inlet 121 and a second air chamber air inlet 122. The first air chamber air inlet 121 corresponds to the first air chamber 130 and is connected to the interior of the first air chamber 130. The second air chamber air inlet 122 corresponds to the second air chamber 140 and is connected to the interior of the second air chamber 140.

[0044] The air input into the first housing 110 may enter into the first air chamber 130 and the second air chamber 140 through the first air chamber air inlet 121 and the second air chamber air inlet 122 .

[0045] The first air chamber 130 and the second air chamber 140 are symmetrically arranged inside the second shell 120 and welded to the second shell 120 to form an integrated structure. The first air chamber 130 is provided with a first disc groove 131, and the second air chamber 140 is provided with a second disc groove 141. The first disc groove 131 and the second disc groove 141 are respectively provided with a plurality of air holes. The air entering the first air chamber 130 and the second air chamber 140 overflows through the air holes on the first disc groove 131 and the second disc groove 141 and forms an air film between the upper conveyor belt and the lower conveyor belt arranged on the first disc groove 131 and the second disc groove 141, so that the upper conveyor belt and the lower conveyor belt can be supported by the air film.

[0046] Here, the pore distribution on the first disc groove 131 and the second disc groove 141 preferably adopts a structure with consistent pore diameter and uniform distribution, so that a smooth air flow overflows and a stable air film is formed between the conveyor belt, thereby reliably supporting the conveyor belt and the material.

[0047] Among them, the length of the second shell 120 is smaller than the first air chamber 130 and the second air chamber 140. At the same time, the length of the second shell 120 is smaller than the distance between the two gas recovery ports 113 on the first shell 110. Therefore, the air in the first air chamber 130 and the second air chamber 140 overflows into the air chamber formed by the two standard sections of the first shell 110 through the disc groove air holes on the part longer than the second shell 120, and the overflowed air is collected and filtered through the gas recovery port 113 to achieve the purpose of circulation.

[0048] At the same time, it should be noted here that the lengths of the first air chamber 130 and the second air chamber 140 preferably correspond to the first shell. When the first shell 110 is connected to the adjacent standard section cavity, the first air chamber 130 and the second air chamber 140 can be directly contacted and connected with the air chamber in the adjacent standard section cavity 100 to ensure the sealing inside the air chamber.

[0049] Secondly, in order to ensure the sealing of the connection between adjacent standard joint devices, sealing rings are installed between the two adjacent connecting plates 111 and the air chamber, and the standard joints are clamped through connecting parts to firmly connect them, so as to achieve a sealed connection between the adjacent first shells and the air chambers, ensuring that sufficient air chamber pressure can be formed to stably support the conveyor belt.

[0050] Also, see Figure 6 After several adjacent standard section cavities are connected by a connecting plate 111 to form the entire air cushion belt conveyor standard section, sealing plates 300 are provided at the ends of the first air chamber 130 and the second air chamber 140 in the first and last standard section cavities of the entire structure, so that the entire air chamber structure is completely sealed to provide sufficient air chamber pressure for the formation of the air cushion layer.

[0051] Furthermore, the air collecting and filtering device 150 is used to collect, filter, compress and transport the air, see Figure 2 , which includes a mounting platform 151 , a high-pressure centrifugal fan 152 , an air collecting filter assembly 153 and a ventilation connecting pipe 154 .

[0052] The air collecting and filtering assembly 153 is disposed on the first shell 110 via the mounting platform 151 , and its two ends are connected to the gas recovery port 113 of the first shell 110 via the ventilation connecting pipe 154 to collect and filter the air in the first shell 110 .

[0053] The high-pressure centrifugal fan 152 is connected to the air collecting filter assembly 153 and the first shell 110 respectively through the ventilation connecting pipe 154. The air filtered by the air collecting filter assembly 153 is transported to the high-pressure centrifugal fan 152 through the ventilation connecting pipe 151, and compressed air is injected into the first shell 110 through the high-pressure centrifugal fan 152.

[0054] Secondly, see Figure 3 A structural platform 200 is respectively provided at the bottom of several standard section cavities 100, and the structural platform 200 includes a maintenance platform 210 and a support leg 220. The maintenance platform 210 is used for the installation and maintenance of the standard section cavity 100. The support leg 220 is symmetrically arranged at the bottom of the maintenance platform 210 to support the maintenance platform 210 and the standard section cavity 100 arranged on the maintenance platform 210.

[0055] Secondly, protective railings 230 are provided at both ends of the maintenance platform 210 to limit the position of the standard section cavity 100 and to provide safety protection for maintenance personnel.

[0056] Based on the energy-saving air cushion belt conveyor standard section structure constructed based on the above scheme, the following example illustrates its working process in specific application. It should be noted here that the working process is only an example and does not constitute a limitation to this scheme.

[0057] First, the connecting plate 111 of the first shell and the air chamber sealing rib 123 of the second shell are sealed and connected with the adjacent standard section cavity to form the entire air cushion belt conveyor standard section. Sealing covers 300 are set at both ends of the head and tail standard section cavities of the entire structure to make the entire air chamber structure completely sealed and provide sufficient air chamber pressure for the formation of the air cushion layer.

[0058] Then, compressed air is injected into the first shell 110 through the high-pressure centrifugal fan 152 on each standard section cavity 100. Since the first shell 110 is a closed cavity, the injected compressed air enters the first air chamber 130 and the second air chamber 140 through the first air chamber air inlet 121 and the second air chamber air inlet 122 respectively.

[0059] The air entering into the first air chamber 130 and the second air chamber 140 overflows through the air holes on the first disc groove 131 and the second disc groove 141 on the first air chamber 130 and the second air chamber 140, and forms a stable air film between the upper conveyor belt and the lower conveyor belt arranged on the first disc groove 131 and the second disc groove 141 to achieve the function of supporting the conveyor belt and the material.

[0060] At the same time, the air flowing out from the first air chamber 130 and the second air chamber 140 to the first shell 110 is collected and filtered by the air collecting filter assembly 153, and the filtered air can be injected into the first shell 110 through the high-pressure centrifugal fan 152 to achieve gas recycling and reuse.

[0061] The energy-saving air cushion belt conveyor standard section structure formed by the above scheme solves the problem that the upper and lower cavities of the fully enclosed air cushion belt conveyor cannot be interconnected by arranging two layers of air chambers in the same shell.

[0062] In this scheme, the gas in the two layers of air chambers can be recycled, which can ensure the purpose of air recycling to the maximum extent. Compared with the existing device, the gas recovery efficiency during operation is greatly improved, the recycling and reuse of the circulating gas is realized, and the purpose of energy saving and environmental protection is achieved.

[0063] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A standard section structure of an energy-saving air cushion belt conveyor, characterized in that: The standard section structure is composed of a number of standard section cavities connected to each other, the standard section cavity includes an air collecting and filtering device, a first shell, a second shell, and a first air chamber and a second air chamber, the air collecting and filtering device is arranged on the first shell, the second shell is arranged inside the first shell and forms a closed cavity with the inner wall of the first shell, the second shell is provided with an air chamber air inlet and is respectively connected with the first air chamber and the second air chamber, the air collecting and filtering device compresses air into the closed cavity formed by the first shell and the second shell, and the air enters the first air chamber and the second air chamber through the air chamber air inlet; The first air chamber and the second air chamber are symmetrically arranged inside the second shell body, and the first air chamber and the second air chamber are respectively provided with disc grooves for air overflow, and an air film is formed between the air overflowing from the disc grooves and the conveyor belt arranged on the disc grooves to support the conveyor belt; The gas collecting and filtering device collects and filters the gas overflowing from the disc slot, and the filtered gas is compressed into the first shell to form a circulation of air.

2. The energy-saving air cushion belt conveyor standard section structure according to claim 1 is characterized in that: Both ends of the first shell are respectively provided with connection plates for connecting with adjacent standard section cavities.

3. The energy-saving air cushion belt conveyor standard section structure according to claim 1 is characterized in that: An air inlet is provided on the first shell, and gas recovery ports are provided at both ends of the air inlet. The air inlet and the gas recovery port are respectively connected to the gas collecting and filtering device.

4. The energy-saving air cushion belt conveyor standard section structure according to claim 3 is characterized in that: The air collecting and filtering device includes an installation platform, a high-pressure centrifugal fan, an air collecting and filtering assembly and a ventilation connecting pipe. The air collecting and filtering assembly is arranged on the first shell through the installation platform, and its two ends are connected to the gas recovery port of the first shell through the ventilation connecting pipe to collect and filter the air in the first shell. The high-pressure centrifugal fan is connected to the air collecting and filtering assembly and the first shell respectively through the ventilation connecting pipe. The air filtered by the air collecting and filtering assembly is transported to the high-pressure centrifugal fan through the ventilation connecting pipe, and compressed air is injected into the first shell through the high-pressure centrifugal fan.

5. The energy-saving air cushion belt conveyor standard section structure according to claim 3 is characterized in that: The distance between the gas recovery ports is greater than that of the second shell.

6. The energy-saving air cushion belt conveyor standard section structure according to claim 5 is characterized in that: Air chamber sealing ribs are provided at both ends of the second shell, and the air chamber sealing ribs are connected to the inner side of the first shell to form an integrated structure, and a closed air chamber is formed between the first shell and the second shell between the air chamber sealing ribs at both ends.

7. The energy-saving air cushion belt conveyor standard section structure according to claim 1 is characterized in that: The length of the second shell is smaller than that of the first air chamber and the second air chamber.

8. The energy-saving air cushion belt conveyor standard section structure according to claim 1 is characterized in that: Sealing plates are provided at the ends of the first air chamber and the second air chamber in the standard section cavity of the first and tail sections of the standard section structure.

9. The energy-saving air cushion belt conveyor standard section structure according to claim 1 is characterized in that: A structural platform is respectively provided at the bottom of the several standard section cavities. The structural platform includes a maintenance platform and supporting legs. The supporting legs are symmetrically arranged at the bottom of the maintenance platform to support the maintenance platform and the standard section cavities arranged on the maintenance platform.

10. The energy-saving air cushion belt conveyor standard section structure according to claim 9, characterized in that: Protective railings are provided at both ends of the maintenance platform.

Images