Fuel adding device for alternative fuel of cement kiln

Abstract

The utility model belongs to the technical field of combustion in an alternative fuel decomposing furnace, and particularly relates to a device for adding alternative fuel to a cement kiln, which comprises a pneumatic conveying fan, a high-temperature fan pipeline is arranged on one side of the pneumatic conveying fan, a conveying pipeline is arranged at one end of the high-temperature fan pipeline, and a material conveying box is arranged above the high-temperature fan pipeline. Through mutual cooperation of the storage bin, the automatic cleaning assembly, the motor, the fixing frame, the rotating shaft, the connecting rod, the support, the scraper blade and the cleaning brush, the device has the automatic cleaning function, and through mutual cooperation of the mounting groove, the conveying box, the dismounting and mounting mechanism, the mounting frame, the telescopic groove, the connecting rod, a handle, a clamping block, a compression spring and a mounting plate, the cleaning effect is improved; according to the device, the weighing sensor is convenient to disassemble and assemble, and the problem that after the device is used for a long time, when the weighing sensor is damaged and fails, workers need to disassemble the weighing sensor forcefully, and then the whole material conveying box is prone to being damaged is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of combustion in a substitute fuel decomposition furnace, in particular to a fuel adding device for substitute fuel in a cement kiln. Background Art

[0002] The cement industry is not only an energy-intensive industry, but also a major emitter of nitrogen oxides. The energy consumption of the cement industry accounts for about 6.5% of the total national energy consumption, and the fuel consumption of the cement industry accounts for 75% of the total energy consumption of the cement industry, while coal accounts for nearly 100% of the total fuel consumption. In addition, a large amount of nitrogen oxides are emitted during the production process, with an annual emission of about 2 million tons, accounting for about 15% of industrial emissions, becoming the third largest source of pollution emissions after thermal power and transportation. The positive role of alternative fuels in reducing nitrogen oxide emissions has been recognized by the industry. Seeking to use alternative fuels is not only in line with my country's strategy of optimizing its energy structure, but also helps to reduce nitrogen oxide emissions.

[0003] The existing patent number CN220062522U discloses a fuel adding device for cement kiln alternative fuel, including a storage bin, a feeding pipe is fixedly connected to one side of the middle part of the upper end surface of the storage bin, an air injection pipe is fixedly connected to the upper end of the outer wall of the storage bin, a feed box is fixedly connected to the lower end of the storage bin, a feed cavity is arranged inside the feed box, a servo motor is arranged at one end of the feed cavity, a spiral weighing reamer is fixedly connected to the output end of the servo motor, a weighing sensor is arranged on one side of the inner wall of the lower end of the feed cavity, and a discharge chute is fixedly connected to one side of the lower end of the feed box. In the utility model, a material storage bin, a pneumatic conveying fan, a metering and weighing device and a conveying pipeline are provided. The stored fuel is pneumatically conveyed to the decomposition furnace, broken up and mixed by a customized burner, and fully contacted and mixed with the air entering the furnace through the tertiary air duct, so as to achieve the purpose of full combustion of the fuel.

[0004] The prior art has the following problems:

[0005] 1. The existing cement kiln alternative fuel adding device is provided with a storage bin for temporary storage of alternative fuel. However, since the device does not have the function of automatic cleaning, part of the alternative fuel will adhere to the inner wall of the storage bin during the long-term use of the device, which not only affects the subsequent normal use of the device, but also requires manual cleaning by humans on a regular basis, indirectly increasing the cost of combustion;

[0006] 2. The existing cement kiln fuel addition device for alternative fuels has a weighing sensor fixedly connected to the inner wall of the feed box. This also leads to the fact that after a long period of use, when the weighing sensor is damaged and fails, the staff needs to forcibly dismantle it, which can easily cause damage to the entire feed box, indirectly reducing the service life of the device and failing to meet the use requirements. Utility Model Content

[0007] In view of the deficiencies in the prior art, the utility model provides a fuel adding device for cement kiln alternative fuel, which solves the problem that the current device does not have an automatic cleaning function, which also results in some alternative fuel adhering to the inner wall of the storage bin during long-term use of the device, which not only affects the subsequent normal use of the device, but also requires manual cleaning by humans on a regular basis. After a long period of use, when the weighing sensor is damaged and malfunctions, the staff is required to forcibly dismantle it, which may easily cause damage to the entire feed box.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fuel adding device for cement kiln alternative fuel, comprising a pneumatic conveying fan, a high-temperature fan pipeline is arranged on one side of the pneumatic conveying fan, a conveying pipeline is arranged at one end of the high-temperature fan pipeline, a feed box is arranged above the high-temperature fan pipeline, a storage bin is arranged on one side of the top of the feed box, an automatic cleaning component is arranged inside the storage bin, a mounting groove is opened at the bottom of the feed box, and a disassembly mechanism is arranged on the feed box below the mounting groove;

[0009] The automatic cleaning component comprises a motor, a fixing frame is arranged on the outer surface of the motor, a rotating shaft is arranged at the output end of the motor, a support rod is arranged on one side of the rotating shaft, a bracket is arranged at one end of the support rod, a scraper is arranged on one side of the bracket, and cleaning brushes are arranged on both sides of the scraper;

[0010] The disassembly and assembly mechanism includes a mounting frame, a telescopic groove is opened on one side of the mounting frame, a connecting rod is arranged inside the telescopic groove, a handle is arranged at one end of the connecting rod, a clamping block is arranged at the other end of the connecting rod, a compression spring is arranged on the outer surface of the connecting rod, a mounting plate is arranged inside the mounting frame, and a weighing sensor is arranged on the top of the mounting plate.

[0011] As a preferred technical solution of the utility model, the top end of the rotating shaft is connected to the motor, and the bottom end of the rotating shaft passes through the fixed frame and is connected to the support rods. There are several groups of support rods, and the support rods are arranged in equidistant straight lines.

[0012] As a preferred technical solution of the utility model, the cross-section of the scraper is triangular, one side of the scraper is arranged in contact with the inner wall of the storage bin, there are two groups of scrapers, and the two groups of scrapers are arranged corresponding to each other in the middle of the rotating shaft.

[0013] As a preferred technical solution of the utility model, the cleaning brush is mounted on the bracket by bonding, and the size of the cleaning brush is matched with the size of the scraper.

[0014] As a preferred technical solution of the utility model, the mounting frame is installed on the right side of the bottom of the feed box through a fixed connection, and the position of the mounting frame and the position of the mounting slot are arranged to correspond to each other.

[0015] As a preferred technical solution of the utility model, one end of the connecting rod is fixedly connected to the handle, and the other end of the connecting rod passes through the telescopic slot and the inside of the compression spring and is connected to the clamping block.

[0016] As a preferred technical solution of the utility model, a card slot matched with the card block is provided on the mounting plate, the position of the card slot and the position of the card block are arranged correspondingly, and the size of the mounting plate is matched with the size of the mounting frame.

[0017] Compared with the prior art, the utility model provides a fuel adding device for cement kiln alternative fuel, which has the following beneficial effects:

[0018] 1. The fuel adding device of the cement kiln alternative fuel is provided with a storage bin, an automatic cleaning component, a motor, a fixing frame, a rotating shaft, a connecting rod, a bracket, a scraper and a cleaning brush. When cleaning the inner wall of the storage bin, the motor can be started to drive the bracket to rotate along the inner wall of the storage bin, so that the scraper can rotate in contact with the inner wall of the storage bin to scrape off the alternative fuel adhering to the inner wall of the storage bin. At the same time, through the provision of the cleaning brush, a secondary cleaning operation can be performed on the alternative fuel that has not been scraped off the inner wall of the storage bin, thereby improving the automatic cleaning effect of the device. This design enables the device to have the function of automatic cleaning, thereby avoiding the problem that part of the alternative fuel will adhere to the inner wall of the storage bin during the long-term use of the device, which not only affects the subsequent normal use of the device, but also requires the arrangement of manual cleaning by humans on a regular basis, thereby indirectly reducing the cost of combustion.

[0019] 2. The fuel adding device for replacing fuel in a cement kiln is provided with an installation slot, a feed box, a disassembly and assembly mechanism, a mounting frame, a telescopic slot, a connecting rod, a handle, a clamping block, a compression spring and a mounting plate. When installing the weighing sensor, the handle is first pulled to make the clamping block squeeze the compression spring, thereby driving the clamping block to retract into the telescopic slot, and then the weighing sensor can be inserted into the mounting slot on the feed box by pushing the mounting plate to engage with the mounting frame. At the same time, the handle is released to make the elastic force of the compression spring push the clamping block to reset and engage with the clamping slot on the mounting plate, so as to clamp and fix the mounting plate, further reinforce the connection of the weighing sensor, and complete the installation operation. When disassembling, the handle is pulled to make the clamping block squeeze the compression spring and then detach from the mounting frame, so as to complete the disassembly operation of the weighing sensor. This design makes the disassembly and assembly operation of the weighing sensor more convenient, avoids the problem that when the weighing sensor is damaged and fails after long-term use, the staff needs to dismantle it forcefully, which may cause damage to the entire feed box, indirectly prolongs the service life of the device, and meets the use requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 It is a cross-sectional view of the utility model;

[0022] Figure 3 For this utility model Figure 1 A magnified view of the structure at center A;

[0023] Figure 4 This is a schematic diagram of the scraper installation structure of the utility model;

[0024] Figure 5 It is a schematic diagram of the disassembly and assembly mechanism structure of the utility model.

[0025] In the figure: 1. Pneumatic conveying fan; 2. High-temperature fan pipeline; 3. Conveying pipeline; 4. Feed box; 5. Storage bin; 6. Automatic cleaning component; 601. Motor; 602. Fixed frame; 603. Rotating shaft; 604. Support rod; 605. Bracket; 606. Scraper; 607. Cleaning brush; 7. Mounting slot; 8. Disassembly and assembly mechanism; 801. Mounting frame; 802. Telescopic slot; 803. Connecting rod; 804. Handle; 805. Block; 806. Compression spring; 807. Mounting plate; 808. Weighing sensor. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-5In the present embodiment: a fuel adding device for replacing fuel in a cement kiln comprises a pneumatic conveying fan 1, a high-temperature fan pipe 2 is arranged on one side of the pneumatic conveying fan 1, a conveying pipe 3 is arranged at one end of the high-temperature fan pipe 2, a feeding box 4 is arranged above the high-temperature fan pipe 2, a storage bin 5 is arranged on one side of the top of the feeding box 4, an automatic cleaning component 6 is arranged inside the storage bin 5, a mounting groove 7 is opened at the bottom of the feeding box 4, and a disassembly mechanism 8 is arranged below the mounting groove 7 of the feeding box 4; the automatic cleaning component 6 comprises a motor 601, model 60ST-M01330, and a fixing frame 602 is arranged on the outer surface of the motor 601, so as to protect and support the motor 601 through the fixing frame 602, thereby improving the efficiency of the motor 601 service life, a rotating shaft 603 is arranged at the output end of the motor 601, a support rod 604 is arranged on one side of the rotating shaft 603, a bracket 605 is arranged at one end of the support rod 604, a scraper 606 is arranged on one side of the bracket 605, and cleaning brushes 607 are arranged on both sides of the scraper 606 of the bracket 605; the disassembly and assembly mechanism 8 includes a mounting frame 801, a telescopic groove 802 is opened on one side of the mounting frame 801, a connecting rod 803 is arranged inside the telescopic groove 802, a handle 804 is arranged at one end of the connecting rod 803, a block 805 is arranged at the other end of the connecting rod 803, a compression spring 806 is arranged on the outer surface of the connecting rod 803, a mounting plate 807 is arranged inside the mounting frame 801, and a weighing sensor 808 is arranged on the top of the mounting plate 807.

[0028] In this embodiment, the top end of the rotating shaft 603 is connected to the motor 601, and the bottom end of the rotating shaft 603 passes through the fixed frame 602 and is connected to the support rod 604. There are several groups of support rods 604, and the support rods 604 are arranged in equidistant straight lines, so that the motor 601 can provide a driving force for driving the support rods 604 to rotate; the cross-section of the scraper 606 is triangular, and one side of the scraper 606 is arranged in contact with the inner wall of the storage bin 5. There are two groups of scrapers 606, and the two groups of scrapers 606 are arranged corresponding to each other in the middle of the rotating shaft 603, so that the scraper 606 can rotate in contact with the inner wall of the storage bin 5 to scrape off the alternative fuel adhered to the inner wall of the storage bin 5, thereby improving the cleaning effect of the device; the cleaning brush 607 is installed on the bracket 605 by bonding, and the size of the cleaning brush 607 is adapted to the size of the scraper 606, so that the alternative fuel that has not been scraped off on the inner wall of the storage bin 5 can be cleaned for the second time through the setting of the cleaning brush 607, thereby improving the cleaning effect of the device. The automatic cleaning effect of the device is achieved; the mounting frame 801 is installed on the right side of the bottom of the feed box 4 through a fixed connection, and the position of the mounting frame 801 is set corresponding to the position of the mounting slot 7, so that the weighing sensor 808 is inserted into the mounting slot 7 on the feed box 4 and installed by pushing the mounting plate 807 to engage with the mounting frame 801; one end of the connecting rod 803 is fixedly connected to the handle 804, and the other end of the connecting rod 803 passes through the telescopic slot 802 and the compression spring 806 and is connected to the card block 805, so that the left and right displacement of the card block 805 can be controlled by the elastic force of the compression spring 806; a card slot adapted to the card block 805 is provided on the mounting plate 807, and the position of the card slot is set corresponding to the position of the card block 805, and the size of the mounting plate 807 is adapted to the size of the mounting frame 801, so that the card block 805 is engaged with the card slot on the mounting plate 807, and the mounting plate 807 is clamped and fixed, and the connection of the weighing sensor 808 is further reinforced.

[0029] The working principle and use process of the utility model are as follows: when cleaning the inner wall of the storage bin 5, the motor 601 in the fixed frame 602 can be started to drive the brackets 605 on both sides of the rotating shaft 603 to rotate along the inner wall of the storage bin 5, so that the scraper 606 can be rotated in contact with the inner wall of the storage bin 5 to scrape off the alternative fuel adhering to the inner wall of the storage bin 5. At the same time, the cleaning brush 607 provided in the automatic cleaning component 6 can be used to perform a secondary cleaning operation on the alternative fuel that has not been scraped off the inner wall of the storage bin 5, thereby improving the automatic cleaning effect of the device. This design enables the device to have the function of automatic cleaning, and avoids the problem that part of the alternative fuel will adhere to the inner wall of the storage bin 5 during the long-term use of the device, which not only affects the subsequent normal use of the device, but also requires manual cleaning by humans on a regular basis. When installing the weighing sensor 808, first pull the handle 804 in the disassembly and assembly mechanism 8 so that the block 805 squeezes the compression spring 8 on the outer surface of the connecting rod 803 06, thereby driving the card block 805 to retract into the telescopic slot 802, and then pushing the mounting plate 807 to engage with the mounting frame 801, the weighing sensor 808 can be inserted into the mounting slot 7 on the feed box 4, and at the same time, by loosening the handle 804, the elastic force of the compression spring 806 pushes the card block 805 to reset, and engages with the card slot on the mounting plate 807, clamps and fixes the mounting plate 807, and further strengthens the connection of the weighing sensor 808 to complete the installation operation. When disassembling, by pulling the handle 804, the card block 805 squeezes the compression spring 806 and then detaches from the mounting frame 801, the disassembly operation of the weighing sensor 808 can be completed. This design makes the disassembly and assembly operation of the weighing sensor 808 more convenient, and avoids the problem that when the weighing sensor 808 is damaged and malfunctions after a long period of use, the staff needs to dismantle it forcefully, which may easily cause damage to the entire feed box 4.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A device for adding fuel to a cement kiln as an alternative fuel, comprising a pneumatic conveying fan (1), a high-temperature fan pipeline (2) is arranged on one side of the pneumatic conveying fan (1), a conveying pipeline (3) is arranged at one end of the high-temperature fan pipeline (2), a feed box (4) is arranged above the high-temperature fan pipeline (2), and a storage bin (5) is arranged on one side of the top of the feed box (4), characterized in that: An automatic cleaning component (6) is arranged inside the storage bin (5), a mounting groove (7) is provided at the bottom of the feed box (4), and a disassembly and assembly mechanism (8) is arranged below the mounting groove (7) on the feed box (4); The automatic cleaning component (6) comprises a motor (601), a fixing frame (602) is arranged on the outer surface of the motor (601), a rotating shaft (603) is arranged at the output end of the motor (601), a supporting rod (604) is arranged on one side of the rotating shaft (603), a bracket (605) is arranged on one end of the supporting rod (604), a scraper (606) is arranged on one side of the bracket (605), and cleaning brushes (607) are arranged on both sides of the scraper (606) on the bracket (605); The disassembly and assembly mechanism (8) comprises a mounting frame (801), a telescopic slot (802) is provided on one side of the mounting frame (801), a connecting rod (803) is provided inside the telescopic slot (802), a handle (804) is provided at one end of the connecting rod (803), a clamping block (805) is provided at the other end of the connecting rod (803), a compression spring (806) is provided on the outer surface of the connecting rod (803), a mounting plate (807) is provided inside the mounting frame (801), and a weighing sensor (808) is provided on the top of the mounting plate (807).

2. The device for adding alternative fuel to a cement kiln according to claim 1, characterized in that: The top end of the rotating shaft (603) is connected to the motor (601), and the bottom end of the rotating shaft (603) passes through the fixing frame (602) and is connected to the support rod (604). There are several groups of support rods (604), and the support rods (604) are arranged in equidistant straight lines.

3. The device for adding alternative fuel to a cement kiln according to claim 1, characterized in that: The cross section of the scraper (606) is triangular, and one side of the scraper (606) is arranged in contact with the inner wall of the storage bin (5). There are two groups of scrapers (606), and the two groups of scrapers (606) are arranged corresponding to each other in the middle of the rotating shaft (603).

4. The device for adding alternative fuel to a cement kiln according to claim 1, characterized in that: The cleaning brush (607) is mounted on the bracket (605) by adhesive connection, and the size of the cleaning brush (607) is matched with the size of the scraper (606).

5. The device for adding alternative fuel to a cement kiln according to claim 1, characterized in that: The mounting frame (801) is mounted on the right side of the bottom of the feed box (4) by a fixed connection, and the position of the mounting frame (801) and the position of the mounting slot (7) are arranged to correspond to each other.

6. The device for adding alternative fuel to a cement kiln according to claim 1, characterized in that: One end of the connecting rod (803) is fixedly connected to the handle (804), and the other end of the connecting rod (803) passes through the telescopic slot (802) and the inside of the compression spring (806) and is connected to the clamping block (805).

7. The device for adding alternative fuel to a cement kiln according to claim 1, characterized in that: The mounting plate (807) is provided with a slot that matches the card block (805), the position of the slot and the position of the card block (805) are arranged correspondingly, and the size of the mounting plate (807) matches the size of the mounting frame (801).

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