A new coal block anti-sticking device for coal feeder weighing sensor

Abstract

The utility model discloses a novel anticaking coal block device for coal feeder weighing sensor relates to coal feeder technical field of thermal power plant, including the protective cover, the bottom end both sides of protective cover all are welded with mounting panel, and the inner chamber of two groups of mounting panels is equipped with mounting hole, and the inner chamber of protective cover is equipped with long round hole, and the side of protective cover is equipped with the perforation, and the outer wall of protective cover is fixedly installed with sector shield, and the inner chamber of sector shield is fixedly connected with support, and support and the outer wall of protective cover are fixedly connected, and the side of sector shield away from protective cover is fixedly connected with protection subassembly, and the protection range can be enlarged through sector shield, and the clearance between weighing sensor and carrier roller is blocked to big lump coal material, and the abnormal weighing or component wear caused by jamming is avoided, and the support can enhance its support stability, and the fixed ring and the opening and closing ring in cooperation protection subassembly are closed through magnetic adsorption, and the carrier roller is adapted to move and block the passage, so that the folding cover pipe can further block coal block and coal dust from invading.

Description

Technical Field

[0001] This utility model relates to the field of coal feeder technology in thermal power plants, specifically a novel anti-coal jamming device for a coal feeder weighing sensor. Background Technology

[0002] The new anti-jamming coal block device for the weighing sensor of the coal feeder is designed to prevent large coal and gangue particles from accumulating on the weighing sensor probe or falling into the gap between the weighing sensor and the idler roller, thereby ensuring the safe and stable operation of the coal feeder.

[0003] During operation, coal chunks can easily get stuck in the gap between the weighing sensor and the idler rollers, or accumulate on the weighing sensor probe. This not only wears down the idler rollers and reduces their service life, but also causes the weighing sensor probe to deform or malfunction, which in turn causes fluctuations in the amount of coal fed into the coal feeder and affects the accuracy of weighing. In addition, frequent malfunctions will increase the maintenance cost and downtime of the equipment and reduce production efficiency.

[0004] However, the current protective cover for the weighing sensor of the coal feeder is a rectangular stainless steel cover, which cannot effectively prevent coal blocks from getting stuck between the weighing sensor and the weighing roller. This results in coal blocks getting stuck between the weighing sensor and the weighing roller, affecting the accurate measurement of the weighing sensor.

[0005] Therefore, this utility model provides a novel anti-coal block jamming device for a coal feeder weighing sensor to solve the problems mentioned above. Utility Model Content

[0006] The purpose of this invention is to provide a novel anti-coal-blocking device for a coal feeder weighing sensor, in order to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A novel anti-coal-blocking device for a coal feeder weighing sensor includes a protective cover. Mounting plates are welded to both sides of the bottom of the protective cover. The inner cavities of the two sets of mounting plates are provided with mounting holes for fixing and connecting different components. An elongated hole is provided through the inner cavity of the protective cover for adjusting and adapting the position of the idler roller during installation. A through hole is provided on one side of the protective cover for fixing or supporting the coal feeder weighing sensor.

[0009] A fan-shaped protective cover is fixedly installed on the outer wall of the protective cover to increase the protection range and effectively prevent coal blocks from getting stuck between the weighing sensor and the weighing roller. A bracket is fixedly connected to the inner cavity of the fan-shaped protective cover to strengthen the support of the fan-shaped protective cover, and the bracket is fixedly connected to the outer wall of the protective cover. A protective component is fixedly connected to the side of the fan-shaped protective cover away from the protective cover to further enhance the protective effect.

[0010] As a further embodiment of this utility model, the protective component includes a fixing ring, which is fixedly installed on the outer wall of the fan-shaped protective cover. The bottom end of the fixing ring is rotatably connected to an opening and closing ring. A folding cover tube is fixedly installed at the end of the fixing ring and the opening and closing ring away from the fan-shaped protective cover to further prevent coal blocks and coal dust from entering the protective cover.

[0011] As a further embodiment of this utility model, a fixing sleeve is fixedly connected to the end of the folded cover tube away from the fixing ring. A fixing component is rotatably installed in the inner cavity of the fixing sleeve for the folded cover tube to be securely fitted onto the idler roller, thereby further improving the blocking effect of the folded cover tube and ensuring that the protective component can continuously and effectively prevent impurities from entering the protective cover, thus ensuring the stable operation of the weighing system.

[0012] As a further embodiment of this utility model, the fixing component includes a rotating disk, which is rotatably installed inside a fixing sleeve. A transmission rod is slidably connected inside the rotating disk, and one end of the transmission rod passes through the rotating disk and is fixedly installed with a clamping block for fixing and holding the idler roller.

[0013] As a further embodiment of this utility model, a drive block is fixedly installed on the top of the rotating disk to drive the rotating disk to rotate. An adjusting screw is fixedly connected inside the drive block, and one end of the adjusting screw is fixedly connected to a fixed sleeve by bolts.

[0014] As a further improvement of this utility model, shock-absorbing rubber plates are fixedly installed at both the upper and lower ends of the fixed sleeve, which can effectively buffer the impact force of falling coal blocks. The fixed sleeve adopts a split design, which is composed of two parts, and can realize the overall opening and closing operation.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. When this utility model is used, the fan-shaped protective cover can expand the protection range, preventing large pieces of coal from entering the gap between the weighing sensor and the idler roller, avoiding jamming that could cause weighing abnormalities or component wear. Increasing the fan-shaped protection area effectively avoids the problem of coal blocks getting stuck between the weighing sensor and the weighing idler roller, reducing pulverizing system failures, ensuring the unit's top load capacity, and resulting in significant economic benefits. The bracket can enhance its support stability, and the fixed ring and opening / closing ring in the protective component are magnetically attracted and closed, adapting to the movement of the idler roller and blocking the channel. This allows the folded cover tube to further block the intrusion of coal blocks and coal powder, and the shock-absorbing rubber plate of the fixed sleeve can buffer the impact force of coal blocks. The split design facilitates quick installation.

[0017] 2. When using this utility model, the folded cover tube is firmly fixed to the idler roller by the fixing component to ensure continuous and reliable protection. When the rotating disk rotates, the inclined sliding groove pushes the transmission rod to drive the clamping block to contract or expand, adapting to idler rollers of different sizes and achieving stable clamping. Then, the rotating disk is driven by pulling the adjusting screw. After adjustment, the nut is tightened to lock the position. The silicone gasket ring enhances the sealing performance. The split design of the rotating disk, together with the buckle and the plug, can realize quick opening and closing and fixation, ensuring that the device does not shift during the movement of the idler roller. At the same time, the fixed size of the protective cover and the fan-shaped cover makes processing and installation convenient. It can be installed by tightening the screw. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a novel anti-coal-blocking device for a coal feeder weighing sensor.

[0019] Figure 2 This is a schematic diagram of the fan-shaped protective cover in a novel anti-coal-blocking device for a coal feeder weighing sensor.

[0020] Figure 3 This is a structural unfolded diagram of the protective component in a novel anti-coal-jamming device for a coal feeder weighing sensor.

[0021] Figure 4 This is a schematic diagram of the fixing component in a novel anti-coal block jamming device for a coal feeder weighing sensor.

[0022] Figure 5 This is a structural exploded view of the fixing component in a novel anti-coal-blocking device for a coal feeder weighing sensor.

[0023] Figure 6 This is a structural development diagram of the fixing component in a novel anti-coal block jamming device used for a coal feeder weighing sensor.

[0024] In the diagram: 1. Protective cover; 2. Mounting plate; 3. Mounting hole; 4. Oblong hole; 5. Perforation; 6. Fan-shaped protective cover; 7. Bracket;

[0025] 8. Protective components; 801. Fixing ring; 802. Opening and closing ring; 803. Folding cover tube; 804. Magnetic block; 805. Fixing sleeve; 806. Shock-absorbing rubber sheet; 807. Buckle; 808. Locking block;

[0026] 9. Fixing component; 901. Rotating disk; 902. Transmission rod; 903. Clamping block; 904. Sliding groove; 905. Drive block; 906. Adjusting screw; 907. Arc groove; 908. Nut; 909. Limiting slider; 910. Snap buckle; 911. Insert block; 912. Limiting groove. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1 , Figure 2 In this embodiment of the utility model, a novel anti-coal block device for a coal feeder weighing sensor includes a protective cover 1. Mounting plates 2 are welded to both sides of the bottom end of the protective cover 1. The inner cavities of the two sets of mounting plates 2 are provided with mounting holes 3 for fixing and connecting different components. The inner cavity of the protective cover 1 is provided with an elongated hole 4 for adjusting and adapting the position of the idler roller during installation. A through hole 5 is provided on one side of the protective cover 1 for fixing or supporting the coal feeder weighing sensor.

[0029] A fan-shaped protective cover 6 is fixedly installed on the outer wall of the protective cover 1 to increase the protection range and effectively prevent coal blocks from getting stuck between the weighing sensor and the weighing roller. A bracket 7 is fixedly connected to the inner cavity of the fan-shaped protective cover 6 to strengthen the support force of the fan-shaped protective cover 6, and the bracket 7 is fixedly connected to the outer wall of the protective cover 1. A protective component 8 is fixedly connected to the side of the fan-shaped protective cover 6 away from the protective cover 1 to further enhance the protection effect.

[0030] It should be noted that the protective cover 1, the mounting plate 2, and the fan-shaped protective cover 6 are all made of stainless steel, which is sturdy, durable, and has good corrosion resistance. By passing bolts through the mounting holes 3, the protective cover 1 can be firmly fixed to other components, ensuring the reliability of the installation.

[0031] It should also be noted that in actual use, the idler rollers will move up and down. This action is a key link for the weighing sensor to achieve accurate weighing. However, the movement of the idler rollers will agitate the airflow, which can easily blow coal dust into the fan-shaped protective cover 6. The entry of coal dust may affect the normal operation of the equipment, causing wear on components and affecting weighing accuracy. Therefore, the protective component 8 can effectively block the coal dust carried by the airflow from entering the fan-shaped protective cover 6, avoiding adverse effects of coal dust on the inside of the equipment, thereby ensuring the stable operation of the coal feeder weighing system, extending the service life of the equipment, and improving the accuracy and reliability of weighing.

[0032] Please see Figure 3 , Figure 4 , Figure 6The protective component 8 includes a fixing ring 801, which is fixedly installed on the outer wall of the fan-shaped protective cover 6. The bottom end of the fixing ring 801 is rotatably connected to an opening and closing ring 802. A folding cover tube 803 is fixedly installed on the end of the fixing ring 801 and the opening and closing ring 802 away from the fan-shaped protective cover 6 to further prevent coal blocks and coal powder from entering the protective cover 1.

[0033] It should be noted that one end of the fixed ring 801 is rotatably connected to the opening and closing ring 802 via a pin, and both ends away from the pin are equipped with magnetic blocks 804 to achieve adsorption closure. The rotation and opening and closing of the fixed ring 801 and the opening and closing ring 802 are adapted to the movement of the idler roller, and the magnetic blocks 804 are used to ensure tight closure. Together with the folding cover tube 803, it further prevents coal blocks and coal powder from entering the protective cover 1, ensuring the clean and stable operation of the weighing system.

[0034] The end of the folded cover tube 803 away from the fixed ring 801 is fixedly connected to a fixed sleeve 805. The inner cavity of the fixed sleeve 805 is rotatably installed with a fixed component 9, which is used to securely mount the folded cover tube 803 on the idler roller, thereby further improving the blocking effect of the folded cover tube 803 and ensuring that the protective component 8 can continuously and effectively prevent impurities from entering the protective cover 1, thus ensuring the stable operation of the weighing system.

[0035] Please see Figure 3 , Figure 4 , Figure 5 , Figure 6 The fixing component 9 includes a rotating disk 901, which is rotatably installed inside the fixing sleeve 805. A transmission rod 902 is slidably connected inside the rotating disk 901. One end of the transmission rod 902 passes through the rotating disk 901 and is fixedly installed with a clamping block 903 for fixing and holding the roller.

[0036] It should be noted that a round hole is provided at the center of the rotating disk 901 to facilitate the installation of the idler roller. There are two sets of clamping blocks 903, and each set of clamping blocks 903 is slidably connected to the rotating disk 901 through the transmission rod 902. The two sets of clamping blocks 903 are symmetrically distributed. The rotating disk 901 rotates and connects to the transmission rod 902 to drive the clamping blocks 903 to contract or expand in order to adapt to idler rollers of different sizes.

[0037] It should also be noted that, in order to ensure that the transmission rod 902 can move smoothly, the inside of the rotating disk 901 is provided with a sliding groove 904 for providing the movement of the transmission rod 902, and the transmission rod 902 is located in the sliding groove 904. The sliding groove 904 is provided with a certain inclination angle so that the transmission rod 902 can be pushed to move by the sliding groove 904 when the rotating disk 901 rotates.

[0038] A drive block 905 is fixedly installed on the top of the rotating disk 901 to drive the rotating disk 901 to rotate. An adjusting screw 906 is fixedly connected inside the drive block 905, and one end of the adjusting screw 906 is fixedly connected to a fixing sleeve 805 by bolts.

[0039] It should be noted that the end of the fixed sleeve 805 away from the folded cover tube 803 is provided with an arc-shaped groove 907 for providing sliding space for the adjusting screw 906. One end of the adjusting screw 906 passes through the arc-shaped groove 907 and a nut 908 is threaded on its outer wall to prevent the adjusting screw 906 from moving at will. At the same time, a silicone gasket is fixedly connected to the side of the nut 908 near the fixed sleeve 805 to enhance the stability and sealing of the fixation, and the silicone gasket fits snugly against the fixed sleeve 805.

[0040] It should also be noted that by pulling the adjusting screw 906, the drive block 905 is moved along the arc groove 907, thereby controlling the rotating disk 901 to rotate, causing the clamping block 903 to retract, so as to achieve the fixed installation of the folded cover tube 803, ensuring that the folded cover tube 803 can effectively block coal blocks and coal powder from entering the protective cover 1, and ensuring the stable operation of the weighing system.

[0041] Please see Figure 4 , Figure 5 , Figure 6 Both ends of the fixed sleeve 805 are fixedly installed with shock-absorbing rubber plates 806, which can effectively buffer the impact of falling coal blocks, reduce the impact of coal blocks on the idler roller, protect the idler roller and extend its service life. The fixed sleeve 805 adopts a split design and is composed of two parts, which can realize the overall opening and closing operation, so as to quickly and conveniently install the fixed component 9 onto the idler roller.

[0042] It should be noted that one end of the two components of the fixed sleeve 805 is rotatably connected by a pin, and the outer wall of the other end is respectively fixed with a buckle 807 and a locking block 808. The two components can be quickly fastened and fixed by the cooperation of the buckle 807 and the locking block 808.

[0043] It should also be noted that the rotating disk 901 also adopts a split design, consisting of two parts that can be opened and closed as a whole. The inner cavity of the fixed sleeve 805 is provided with a limiting groove 912. A limiting slider 909 is fixedly installed on one side of the rotating disk 901, and the limiting slider 909 is embedded in the limiting groove 912. This ensures that when the two parts of the fixed sleeve 805 open and close, the corresponding split rotating disk 901 can open and close synchronously. It also prevents the rotating disk 901 from falling off through the limiting effect. In addition, one end of the two split rotating disks 901 is rotatably connected to a buckle 910 and a plug 911 by a pin, respectively, to achieve the buckling and fixing of the two, so that the rotating disk 901 can rotate as a whole under the drive of the drive block 905.

[0044] The working principle of this utility model is as follows:

[0045] When using this utility model, firstly, by inserting bolts through the mounting holes 3 on the mounting plate 2, the protective cover 1 is firmly fixed in the corresponding position of the equipment. At the same time, the relative position of the protective cover 1 and the matching roller is adjusted by using the elongated hole 4 in the inner cavity of the protective cover 1, so as to ensure that the weighing sensor installed at the through hole 5 and the roller are precisely matched.

[0046] Then, the fixed ring 801 and the opening and closing ring 802 are rotatably connected by a pin. The two can achieve tight adsorption and closure by using the magnetic block 804, so that the two folded cover tubes 803 are merged together, further blocking the channel and effectively preventing the intrusion of coal powder and coal blocks.

[0047] At the same time, by interlocking the snap fastener 910 and the snap block 911, the split rotating disk 901 is fixed and merged, and by quickly engaging the snap fastener 807 and the snap block 808, the fixed sleeve 805 can be quickly fitted onto the idler roller.

[0048] Then, pull the adjusting screw 906 to slide it along the arc groove 907, which drives the drive block 905 to drive the rotating disk 901 to rotate. The inclined sliding groove 904 inside the rotating disk 901 will push the transmission rod 902 to slide, which in turn drives the two sets of symmetrical clamping blocks 903 to contract or expand, so as to achieve stable clamping of idlers of different diameters, ensuring that the folded cover tube 803 is always fixedly sleeved on the idler, preventing the protection failure caused by loosening. Then, by tightening the nut 908 on the outer wall, the sealing and stability are enhanced with the silicone gasket ring, and the position of the adjusting screw 906 is locked, thereby fixing the state of the rotating disk 901 and the clamping block 903, ensuring that the device does not shift during the continuous movement of the idler.

[0049] Finally, the fan-shaped protective cover 6 prevents large pieces of coal from entering the gap between the weighing sensor and the idler roller, avoiding weighing abnormalities or component wear caused by coal block jamming. The support of the fan-shaped protective cover 6 is strengthened by the bracket 7 to ensure its structural stability under the impact of coal. At the same time, the shock-absorbing rubber plates 806 at the upper and lower ends of the fixed sleeve 805 can buffer the impact of falling coal blocks and reduce the damage of coal blocks to the idler roller and the device.

[0050] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A new anti-sticking coal lump device for weighing sensor of a coal feeder, comprising a protective cover (1), characterized in that, Mounting plates (2) are welded to both sides of the bottom end of the protective cover (1). The inner cavities of the two sets of mounting plates (2) are provided with mounting holes (3) for fixing and connecting different components. The inner cavity of the protective cover (1) is provided with an elongated hole (4) for adjusting and adapting the position of the idler roller during installation. A through hole (5) is provided on one side of the protective cover (1) for fixing or supporting the coal feeder weighing sensor. The outer wall of the protective cover (1) is fixedly installed with a fan-shaped cover (6) to increase the protection range and effectively prevent coal blocks from getting stuck between the weighing sensor and the weighing roller. The inner cavity of the fan-shaped cover (6) is fixedly connected with a bracket (7) to strengthen the support of the fan-shaped cover (6), and the bracket (7) is fixedly connected to the outer wall of the protective cover (1). The side of the fan-shaped cover (6) away from the protective cover (1) is fixedly connected with a protective component (8) to further enhance the protection effect.

2. A novel anti-coal-jamming device for a coal feeder weighing sensor according to claim 1, characterized in that, The protective component (8) includes a fixing ring (801), which is fixedly installed on the outer wall of the fan-shaped protective cover (6). The bottom end of the fixing ring (801) is rotatably connected to an opening and closing ring (802). A folding cover tube (803) is fixedly installed at the end of the fixing ring (801) and the opening and closing ring (802) away from the fan-shaped protective cover (6) to further prevent coal blocks and coal powder from entering the protective cover (1).

3. A novel anti-coal-jamming device for a coal feeder weighing sensor according to claim 2, characterized in that, The end of the folded cover tube (803) away from the fixed ring (801) is fixedly connected to a fixed sleeve (805). The inner cavity of the fixed sleeve (805) is rotatably equipped with a fixed component (9) for the folded cover tube (803) to be securely fitted onto the idler roller, thereby further improving the blocking effect of the folded cover tube (803) and ensuring that the protective component (8) can continuously and effectively prevent impurities from entering the protective cover (1) and ensure the stable operation of the weighing system.

4. A novel anti-coal-jamming device for a coal feeder weighing sensor according to claim 3, characterized in that, The fixing component (9) includes a rotating disk (901), which is rotatably installed in a fixing sleeve (805). A transmission rod (902) is slidably connected inside the rotating disk (901). One end of the transmission rod (902) passes through the rotating disk (901) and is fixedly installed with a clamping block (903) for fixing and holding the idler roller.

5. A novel anti-coal-jamming device for a coal feeder weighing sensor according to claim 4, characterized in that, A drive block (905) is fixedly installed on the top of the rotating disk (901) to drive the rotating disk (901) to rotate. An adjusting screw (906) is fixedly connected inside the drive block (905), and one end of the adjusting screw (906) is fixedly connected to a fixing sleeve (805) by bolts.

6. A novel anti-coal-jamming device for a coal feeder weighing sensor according to claim 3, characterized in that, The upper and lower ends of the fixed sleeve (805) are fixedly installed with shock-absorbing rubber plates (806), which can effectively buffer the impact force of falling coal blocks. The fixed sleeve (805) adopts a split design and is composed of two parts, which can realize the overall opening and closing operation.

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