Efficient and economical device and method for cleaning belt conveyor

Abstract

The invention relates to the technical field of rubber belt conveying and cleaning, and discloses an efficient and economical device and method for cleaning a rubber belt conveyor. The attachment tension degree of the counterweight sweeper and the surface of the adhesive tape is adjusted by increasing or decreasing the weight of a counterweight block in the counterweight box at the rear end of the connecting rod, moisture and sludge attached to the surface of the adhesive tape can be effectively removed through multiple times of sweeping, and compared with a common sweeper tool bit, the rubber sweeping device is softer, not prone to damaging the adhesive tape and high in practicability. And the tensioning degree of the sweeper does not need to be frequently adjusted. The cleaning device is simple in structure, convenient to operate and good in cleaning effect, labor intensity is greatly reduced, washing sludge is recycled in a centralized mode and participates in stacking, mineral loss is reduced, and therefore the device is easy to install, reasonable in structure, low in use cost and low in maintenance cost, and the problems that an adhesive tape machine is not thorough in cleaning, pollutes the environment and the like are effectively solved.

Description

Technical Field

[0001] This invention relates to the field of belt conveyor cleaning technology, specifically to an efficient and economical device and method for cleaning belt conveyors. Background Technology

[0002] Belt conveyors are widely used for transporting materials such as ores, fuels, fluxes, and slag. During transport, material inevitably adheres to the working surface of the belt, falling to the ground on the return trip, generating dust, causing pollution and waste. Therefore, it is necessary to use sweepers. However, the commonly used mechanical sweepers have some problems: ① Incomplete cleaning and material residue can easily cause belt misalignment and wear, increasing costs; ②Short service life, requiring frequent adjustment of the sweeper tension and replacement of the sweeper blades, which delays production and wastes manpower and resources; ③ Poor cleaning effect can easily cause large-scale dust and material accumulation under the conveyor belt, worsening the working environment and increasing labor intensity. Summary of the Invention

[0003] In view of the shortcomings of the prior art, the present invention provides an efficient and economical device and method for cleaning conveyor belts, which has the advantages of cleaning the conveyor belt and recycling the cleaned material at the same time, thus solving the above-mentioned technical problems.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a highly efficient and economical device for cleaning a conveyor belt, comprising a drive roller, a conveyor belt driven by the drive roller, and a surface-enhancing roller. A water collection trough is provided below the conveyor belt, and a primary spray pipe and a secondary spray pipe are provided in the water collection trough. The water inlet ends of the primary and secondary spray pipes are connected to a clean water pump, and the water inlet end of the clean water pump is connected to a clean water tank. A counterweight cleaner is provided at the bottom of the conveyor belt and behind the surface-enhancing roller. The discharge end of the water collection trough is connected to a sedimentation and circulation structure.

[0005] As a preferred embodiment of the present invention, the primary spray pipe is located 200mm below the center line of the drive roller inside the water collection tank, and the secondary spray pipe is located 500mm behind the surface-enhancing roller inside the water collection tank.

[0006] As a preferred embodiment of the present invention, the sedimentation and circulation structure includes a sludge pump, a sewage tank, a sedimentation tank, and a submersible pump. The discharge end of the water collection tank is connected to the sewage tank. The sludge pump is located inside the sewage tank and its output end is connected to the sedimentation tank. The submersible pump is located inside the sedimentation tank and its output end is connected to the clear water tank.

[0007] As a preferred embodiment of the present invention, the counterweight cleaner includes a connecting rod and a rubber cleaner. The rubber cleaner is fixedly installed on the outer end of the sleeve, and its top surface contacts the conveyor belt. The connecting rod is connected to the support via a pin. One end of the connecting rod is connected to the sleeve, and the other end of the connecting rod is connected to a counterweight box. The counterweight box contains a plurality of counterweight blocks. A screw is installed inside the sleeve, and the screw is fixedly installed on the side of the intermediate frame of the conveyor belt machine.

[0008] The present invention also provides a method for cleaning a high-efficiency and economical conveyor belt, based on the above-described apparatus for cleaning a high-efficiency and economical conveyor belt, comprising the following steps: Step 1: Start the clean water pump. The clean water stored in the clean water tank is sprayed out through the primary and secondary spray pipes to rinse the rinsing points. Step 2: Start the drive roller to move the conveyor belt, and use the counterweight sweeper to perform a second cleaning of the washed conveyor belt; Step 3: Wastewater from the primary and secondary spray pipes enters the water collection tank and then flows into the wastewater tank. Step 4: The sludge pump draws the sewage from the sewage tank into the sedimentation tank, and the settled clean water is then transported back to the clean water tank by a submersible pump.

[0009] Compared with the prior art, the present invention provides an efficient and economical device and method for cleaning conveyor belts, which has the following advantages: This invention adjusts the tension of the counterweight sweeper against the conveyor belt surface by adding or subtracting the weight of the counterweight block in the counterweight box at the rear end of the connecting rod. Multiple sweeps effectively remove moisture and sludge adhering to the conveyor belt surface. The rubber sweeper, made of rubber material, is softer than ordinary sweeper blades and less likely to damage the conveyor belt, eliminating the need for frequent tension adjustments. It is easy to operate, provides excellent cleaning results, significantly reduces labor intensity, and the washed sludge is centrally recycled and used in pile building, reducing mineral loss. Therefore, this device is simple to install, has a reasonable structure, low operating costs, low maintenance costs, and effectively solves problems such as incomplete cleaning of conveyor belt machines and environmental pollution. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall framework of the present invention; Figure 2 This is a schematic diagram of the installation arrangement of the counterweight sweeper of the present invention.

[0011] The components include: 1. Clean water pump; 2. Primary spray pipe; 3. Secondary spray pipe; 4. Surface roller; 5. Clean water tank; 6. Drive roller; 7. Conveyor belt; 8. Counterweight sweeper; 801. Rubber sweeper; 802. Screw; 803. Support; 804. Connecting rod; 805. Counterweight box; 806. Round steel; 807. Conveyor belt intermediate frame; 808. Sleeve; 809. Pin; 810. Counterweight block; 9. Water collection tank; 10. Sludge pump; 11. Sewage tank; 12. Sedimentation tank; 13. Submersible pump. Detailed Implementation

[0012] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0013] Please see Figures 1-2 A highly efficient and economical cleaning device for a conveyor belt includes a drive roller 6, a conveyor belt 7 driven by the drive roller 6, and a surface-enhancing roller 4. A water collection tank 9 is provided below the conveyor belt 7. A primary spray pipe 2 and a secondary spray pipe 3 are provided in the water collection tank 9. The water inlet ends of the primary spray pipe 2 and the secondary spray pipe 3 are connected to a clean water pump 1. The water inlet end of the clean water pump 1 is connected to a clean water tank 5. A counterweight cleaner 8 is provided at the bottom of the conveyor belt 7 and behind the surface-enhancing roller 4. The discharge end of the water collection tank 9 is connected to a sedimentation and circulation structure.

[0014] The primary spray pipe 2 is located 200mm below the center line of the drive roller 6 inside the water collection tank 9, and the secondary spray pipe 3 is located 500mm behind the surface-enhancing roller 4 inside the water collection tank 9.

[0015] The sedimentation and circulation structure includes a sludge pump 10, a sewage tank 11, a sedimentation tank 12, and a submersible pump 13. The discharge end of the water collection tank 9 is connected to the sewage tank 11. The sludge pump 10 is located inside the sewage tank 11 and its output end is connected to the sedimentation tank 12. The submersible pump 13 is located inside the sedimentation tank 12 and its output end is connected to the clear water tank 5.

[0016] The counterweight sweeper 8 includes a connecting rod 804 and a rubber sweeper 801. The connecting rod 804 is connected to the support 803 via a pin 809. One end of the connecting rod 804 is connected to the sleeve 808, and the other end of the connecting rod 804 is connected to a counterweight box 805. The counterweight box 805 contains several counterweight blocks 810. The sleeve 808 contains a screw 802, which is fixedly installed on the side of the intermediate frame 807 of the conveyor belt. The rubber sweeper 801 contacts the conveyor belt 7. A round steel bar 806 is welded to the side of the sleeve 808. The round steel bar 806 presses against the surface of the connecting rod 804 and is pushed upward by the connecting rod 804. The connecting rod 804 uses the support 803 as a fulcrum, and its front end is supported by the round steel bar 806 welded to the sleeve 808 corresponding to the rubber sweeper 801. The rear end adjusts the tension of the sweeper and the conveyor belt by adding the weight of the counterweight blocks 810 from the counterweight box 805. The support is made of steel structural components welded and fixed to the ground support, and the height is designed to keep the connecting rod horizontal. A primary spray pipe 2 and a secondary spray pipe 3 are installed 200mm below the center line of the conveyor belt drive roller 6 and 500mm behind the expansion roller 4, respectively. Water is used as the medium, and a clean water pump 1 supplies water to thoroughly rinse away the small particles adhering to the surface of the conveyor belt 7. After rinsing, the surface of the conveyor belt 7 will have a large amount of water and sludge. To solve the problem of poor cleaning effect of traditional sweepers and the need for frequent adjustment of the sweeper tension to maintain the cleaning effect, a counterweight sweeper 8 is added 200mm after the secondary spray point. Figure 2 As shown, the counterweight sweeper device consists of a rubber sweeper 801, a screw 802, a connecting rod 804, a support 803, a pin 809, a sleeve 808, a counterweight box 805, and a counterweight block 810. During installation, the screw 802 passes through the sleeve 808 and is welded to the intermediate frame 807 of the conveyor belt. The connecting rod 804 is connected to the support 803 via the pin 809, and the front end of the connecting rod 804 is supported on the sleeve 808. According to the lever principle, the tension of the counterweight sweeper 8 against the surface of the conveyor belt 7 is adjusted by adding or subtracting the weight of the counterweight block 810 in the counterweight box 805 at the rear end of the connecting rod 804. Multiple sweeps can effectively remove the moisture and mud adhering to the surface of the conveyor belt 7. The rubber sweeper 801 is made of rubber, which is softer than ordinary sweeper blades and less likely to damage the conveyor belt 7. It does not require frequent adjustment of the sweeper tension, is easy to operate, has a good cleaning effect, and greatly reduces labor intensity. Two water tanks, each 1.8 meters long, 1.7 meters wide, and 1.7 meters high, are constructed in the counterweight compartment 5 meters below the head of the conveyor belt. The two water tanks are placed side by side, and a DN100 steel pipe is opened 500mm from the top of the water tanks to connect them, serving as the clean water tank 5. A water collection trough 9, 5 meters long, 1.8 meters wide, and 0.8 meters high, is constructed below the rinsing point to collect the sludge washed off into the sewage tank 11; To prevent sludge from settling in the sewage tank 11 and becoming unusable, air ducts are installed evenly spaced 600mm apart inside the sewage tank 11. Compressed air is used as the medium to ensure that the sludge and sewage are thoroughly mixed to prevent settling. A submersible pump 13 is installed 1 meter above the bottom of the sedimentation tank 12 to pump the fully settled clear water back to the clear water tank 5.

[0017] A clean water pump 1 is installed 1 meter from the top inside the clean water tank 5 to continuously pump water to provide a medium for rinsing the tape 7.

[0018] When the sludge in sedimentation tank 12 reaches a height of 1 meter, engineering machinery is used to clean the sludge in sedimentation tank 12 into material strips for use in stacking. A sludge pump 10 is installed at a height of 200mm from the bottom of the sewage tank 11. When the sludge reaches a height of 200mm, the air duct is opened to fully mix the sludge and then pump the sludge into the sedimentation tank 12. The sedimentation tank is located in the mixing strip (the mixing strip is the mixing ore stockpile storage area) and is 20 meters long, 5 meters wide, and 1.5 meters high. After the device is implemented (1) On-site dust pollution has been significantly reduced, and the working environment has been significantly improved; (2) The labor intensity of employees in the position is reduced; (3) The sludge from the washing process is collected in a centralized manner and used for pile building, which reduces mineral loss. As a result, the device is easy to install, has a reasonable structure, low operating cost, and low maintenance cost, effectively solving problems such as incomplete cleaning of the belt conveyor and environmental pollution.

[0019] The present invention also provides a method for cleaning a high-efficiency and economical conveyor belt, based on the above-described apparatus for cleaning a high-efficiency and economical conveyor belt, comprising the following steps: Step 1: Start the clean water pump 1. The clean water stored in the clean water tank 5 is sprayed out through the primary spray pipe 2 and the secondary spray pipe 3 to rinse the rinsing points. Step 2: Start the drive roller 6 to drive the conveyor belt 7 to move, and cooperate with the counterweight sweeper 8 to perform a second cleaning of the washed conveyor belt 7; Step 3: The wastewater from the primary spray pipe 2 and the secondary spray pipe 3 enters the water collection tank 9 and then flows from the water collection tank 9 into the wastewater tank 11; Step 4: Sludge pump 10 pumps the sewage from sewage tank 11 into sedimentation tank 12, and then uses submersible pump 13 to transport the settled clean water back to clean water tank 5.

[0020] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for efficient and economical cleaning of a belt conveyor, comprising a drive drum (6), a belt (7) driven by the drive drum (6) and a lapping drum (4), characterized in that: The water accumulation groove (9) is provided below the adhesive tape (7), a primary spraying pipe (2) and a secondary spraying pipe (3) are arranged in the water accumulation groove (9), the water inlet end of the primary spraying pipe (2) and the secondary spraying pipe (3) is connected with a clean water pump (1), the water inlet end of the clean water pump (1) is connected with a clean water tank (5), a counterweight sweeper (8) is arranged at the bottom of the adhesive tape (7) and behind the face-increasing roller (4), and the discharge end of the water accumulation groove (9) is connected with a sediment circulation structure.

2. A device for efficiently and economically cleaning a belt conveyor as claimed in claim 1, characterized in that: The primary spraying pipe (2) is arranged at a position 200 mm below the center line of the driving roller (6) in the water accumulation groove (9), and the secondary spraying pipe (3) is arranged in the water accumulation groove (9) and at a position 500 mm behind the face-increasing roller (4).

3. A device for efficiently and economically cleaning a belt conveyor as defined in claim 1, wherein: The sediment circulation structure comprises a sludge pump (10), a sewage tank (11), a sediment tank (12) and a submersible pump (13), the discharge end of the water accumulation groove (9) is connected with the sewage tank (11), the sludge pump (10) is arranged in the sewage tank (11) and has an output end connected with the sediment tank (12), and the submersible pump (13) is arranged in the sediment tank (12) and has an output end connected with the clean water tank (5).

4. A device for efficiently and economically cleaning a belt conveyor as defined in claim 1, wherein: The counterweight sweeper (8) comprises connecting rods (804) and rubber sweepers (801), the rubber sweepers (801) are fixedly installed at the outer ends of sleeve pipes (808) and have top surfaces in contact with the adhesive tape (7), the connecting rods (804) are connected to supports (803) through pin shafts (809), one end of each connecting rod (804) is connected with a sleeve pipe (808), the sleeve pipes (808) are connected through round steels (806), the other end of each connecting rod (804) is connected with a counterweight tank (805), the counterweight tank (805) is provided with a plurality of counterweight blocks (810), and screw rods (802) are arranged in the sleeve pipes (808) and fixedly installed on the side surfaces of middle frames (807) of the adhesive tape machines.

5. A method for efficiently and economically cleaning a belt conveyor, based on the device for efficiently and economically cleaning a belt conveyor according to any one of claims 1-5, characterized in that: The method comprises the following steps: Step one: starting the clean water pump (1) to spray clean water stored in the clean water tank (5) from the primary spraying pipe (2) and the secondary spraying pipe (3) to flush the washing point; Step two: starting the driving roller (6) to drive the adhesive tape (7) to move and cooperating with the counterweight sweeper (8) to clean the adhesive tape (7) again; Step three: the sewage flushed by the primary spraying pipe (2) and the secondary spraying pipe (3) enters the water accumulation groove (9) and then enters the sewage tank (11) from the water accumulation groove (9); Step four: the sludge pump (10) pumps the sewage in the sewage tank (11) into the sediment tank (12), and the submersible pump (13) sends the cleaned water back to the clean water tank (5).

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