Anti-blocking feeding device of biomass particle boiler

Abstract

The utility model discloses an anti-blocking feeding device of a biomass particle boiler, and relates to the technical field of mechanical engineering. An anti-blocking feeding device of a biomass particle boiler comprises a supporting base, a feeding bin and a connecting box, a filtering assembly is arranged on the connecting box and comprises a feeding box, a fixing plate, a screen, a discharging plate and a collecting box, materials in the filtering assembly enter from a feeding port of the feeding box, and due to the fact that the screen is obliquely arranged in the feeding box, the filtering assembly is arranged on the supporting base; materials slide downwards along the surface of the screen mesh under the action of gravity, meanwhile, the vibration motor is started, vibration generated by the vibration motor is transmitted to the feeding box and the screen mesh, so that the screen mesh vibrates at high frequency, the materials continuously jump and slide on the screen mesh under the action of vibration, and the materials meeting the aperture requirement of the screen mesh penetrate through the screen mesh. And impurities in the materials cannot penetrate through the screen, so that the impurities are effectively prevented from entering the boiler feeding bin to block the feeding channel, and the practicability and the reliability of the equipment are further improved.

Description

Technical Field

[0001] This utility model relates to the field of mechanical engineering technology, and in particular to an anti-clogging feeding device for biomass pellet boilers. Background Technology

[0002] Boilers are commonly used devices in industrial production and serve as the energy source in production processes. Chinese utility model patent, authorization announcement number "CN213630495U", discloses a feeding device for a clean boiler, including a base. A feeding hopper is fixedly connected to the upper surface of the base. A through groove is formed at the top of the feeding hopper, and a cover plate is installed above the through groove. A mounting frame is fixedly connected to the upper surface of the feeding hopper, and a sliding groove is formed on the mounting frame. The inner cavity of the sliding groove is slidably engaged with the cover plate. Fixing blocks are fixedly connected to both sides of the upper surface of the mounting frame. A sliding rod is slidably inserted through the middle of the fixing blocks. A connecting block is fixedly connected to the bottom end of the sliding rod, and a spring is fixedly connected to the upper surface of the connecting block. The spring is movably sleeved with the sliding rod. This utility model utilizes the coordinated arrangement of fixing blocks, sliding rods, and springs. When the sliding rod is pressed, the spring stretches, and the connecting block presses down on the cover plate. When the pressure from the connecting block is released, the spring contracts, causing the sliding rod to return to its initial state. This ensures the cover plate's seal against the through groove at the top of the feeding hopper and facilitates the installation and removal of the cover plate.

[0003] The aforementioned equipment conveys fuel downwards through a feed hopper. A feed pipe is fixedly connected to the bottom of the feed hopper, and the bottom of the feed pipe is fixedly connected to one end of the top of the feed bin. The feed bin is connected to the feed hopper through the feed pipe. Fuel in the feed hopper can enter the feed bin through the feed pipe and be conveyed to the boiler. However, the above technical solution still has certain defects. For example, the equipment conveys fuel downwards through a feed hopper, and a feed pipe is fixedly connected to the bottom of the feed hopper. However, biomass pellet fuel is usually compressed from agricultural waste, forestry residues, etc. During the collection, processing, and storage of these raw materials, stones, metal scraps, plastic sheets, and soil clumps will inevitably be mixed in. After these impurities enter the boiler feed bin, they will directly block the feed channel, causing the pellet conveying to be interrupted, forcing the boiler to be shut down for cleaning, thereby reducing the practicality of the equipment. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a biomass pellet boiler anti-clogging feeding device. This device can solve the problem that the equipment conveys the feed downward through the feed hopper and the bottom of the feed hopper is fixedly connected to the feed pipe. However, biomass pellet fuel is usually compressed from agricultural waste, forestry residues, etc. During the collection, processing and storage of these raw materials, it is inevitable that stones, metal scraps, plastic pieces and soil clumps will be mixed in. After these impurities enter the boiler feeding bin, they will directly block the feed channel, causing the pellet conveying to be interrupted, forcing the boiler to be shut down for cleaning, and thus reducing the practicality of the equipment.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a biomass pellet boiler anti-clogging feeding device, including a support base, a feeding hopper and a connecting box, wherein a filter assembly is provided on the connecting box;

[0006] The filter assembly includes a feed box, a fixed plate, a screen, a discharge plate, and a collection box. Compression spring bolts are installed on the outer walls of the four corners at the bottom of the feed box. Two first fixing bolts are threaded on the outer wall of the fixed plate. Two first fixing bolt slots are opened on one side of the outer wall of the feed box. The discharge plate is fixedly installed at the discharge port on one side of the feed box.

[0007] Two T-shaped block slots are provided on one side of the outer wall of the connecting box. The inner wall of the upper end of each of the two T-shaped block slots is provided with a second fixing bolt slot. The outer walls of the two T-shaped blocks on the collecting box are threaded with a second fixing bolt. A vibration motor is installed on the outer wall of the feeding box away from the discharge plate.

[0008] Preferably, the outer wall of the screen is slidably connected to the inclined groove opened in the outer wall of the feed box, and one side of the outer wall of the fixing plate is fixedly connected to one side of the outer wall of the screen.

[0009] The screen is arranged at an angle inside the feed box.

[0010] Preferably, the ends of the two first fixing bolts near the first fixing bolt slots are threaded to the outside of the fixing plate and respectively connected to the internal threads of the corresponding first fixing bolt slots;

[0011] The screen is used in conjunction with the discharge plate on the feed box.

[0012] Preferably, the feed box is connected to the upper end of the connecting box by four compression spring bolts at the lower end, and the interior of the connecting box is in communication with the interior of the feed box;

[0013] Among them, the outer walls of the two T-shaped blocks on one side of the collection box are slidably connected to the interior of the corresponding T-shaped block grooves.

[0014] Preferably, the ends of the two second fixing bolts near the second fixing bolt slots are both threaded into the interior of the T-shaped block slot and respectively connected to the internal threads of the corresponding second fixing bolt slots;

[0015] The discharge plate is used in conjunction with the collection box.

[0016] Preferably, the feeding hopper is fixedly installed on the upper surface of the support base, and the connecting box is fixedly installed on the outer wall of one end of the feeding hopper, with the interior of the feeding hopper communicating with the interior of the connecting box;

[0017] The feed hopper is internally connected to a screw conveyor shaft, and an electric motor is fixedly installed on the outer wall of the feed hopper at the end away from the discharge port. The output end of the electric motor extends into the feed hopper and is fixedly connected to one end of the screw conveyor shaft.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. The anti-clogging feeding device for this biomass pellet boiler allows material to enter through the feed inlet of the feed box via the filter assembly. Since the screen is arranged at an angle within the feed box, the material slides downwards along the screen surface under gravity. Simultaneously, a vibration motor is activated, transmitting vibrations to the feed box and screen, causing the screen to vibrate at high frequency. Under this vibration, the material continuously jumps and slides on the screen. Material that meets the screen aperture requirements passes through the screen, while impurities cannot. This effectively prevents impurities from entering the boiler feed hopper and clogging the feed channel, thereby improving the practicality and reliability of the equipment. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the external structure of the screen of this utility model;

[0023] Figure 3 This is a schematic diagram of the external structure of the feed box of this utility model;

[0024] Figure 4 This utility model Figure 2 A structural schematic diagram of the enlarged view at point A in the middle.

[0025] Reference numerals in the attached drawings: 1. Support base; 2. Feed box; 3. Fixing plate; 4. Screen; 5. Discharge plate; 6. First fixing bolt; 7. Collection box; 8. Second fixing bolt; 9. Feed hopper; 10. Compression spring bolt; 11. Connecting box; 12. First fixing bolt slot; 13. Screw conveyor shaft; 14. Vibrating motor; 15. T-block slot; 16. Second fixing bolt slot; 17. Electric motor. Detailed Implementation

[0026] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0027] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0029] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0030] Please see Figure 1-4 This utility model provides a technical solution: a biomass pellet boiler anti-clogging feeding device, including a support base 1, a feeding bin 9 and a connecting box 11;

[0031] A filter assembly is installed on the connection box 11;

[0032] The filter assembly includes a feed box 2, a fixing plate 3, a screen 4, a discharge plate 5, and a collection box 7. Compression spring bolts 10 are installed on the outer walls of the four corners at the lower end of the feed box 2. The outer wall of the screen 4 is slidably connected to the inclined groove on the outer wall of the feed box 2. One side of the outer wall of the fixing plate 3 is fixedly connected to one side of the outer wall of the screen 4. The screen 4 is arranged at an angle inside the feed box 2. Two first fixing bolts 6 are threadedly connected to the outer wall of the fixing plate 3. Two first fixing bolt grooves 12 are provided on one side of the outer wall of the feed box 2. The ends of the two first fixing bolts 6 near the first fixing bolt grooves 12 extend threadedly to the outside of the fixing plate 3 and are respectively threadedly connected to the corresponding first fixing bolt grooves 12. The discharge plate 5 is fixedly installed at the discharge port on one side of the feed box 2. The screen 4 and the discharge plate 5 on the feed box 2 are matched... The feeding box 2 is connected to the upper end of the connecting box 11 by four compression spring bolts 10 at the lower end. The interior of the connecting box 11 is connected to the interior of the feeding box 2. Two T-shaped block grooves 15 are opened on one side of the outer wall of the connecting box 11. The outer walls of the two T-shaped blocks on one side of the collecting box 7 are slidably connected to the interior of the corresponding T-shaped block grooves 15. The upper inner walls of the two T-shaped block grooves 15 are provided with second fixing bolt grooves 16. The outer walls of the two T-shaped blocks on the collecting box 7 are threaded with second fixing bolts 8. The ends of the two second fixing bolts 8 near the second fixing bolt grooves 16 are threaded into the interior of the T-shaped block grooves 15 and are threadedly connected to the interior of the corresponding second fixing bolt grooves 16. The discharge plate 5 is used in conjunction with the collecting box 7. A vibration motor 14 is installed on the outer wall of the feeding box 2 away from the discharge plate 5.

[0033] The feeding hopper 9 is fixedly installed on the upper surface of the support base 1, and the connecting box 11 is fixedly installed on the outer wall of one end of the feeding hopper 9. The interior of the feeding hopper 9 is connected to the interior of the connecting box 11. The interior of the feeding hopper 9 is rotatably connected to the screw conveyor shaft 13. The outer wall of the feeding hopper 9 away from the discharge port is fixedly installed with a motor 17. The output end of the motor 17 extends rotatably into the interior of the feeding hopper 9 and is fixedly connected to one end of the screw conveyor shaft 13.

[0034] Furthermore, when using this device, the material first enters through the feed inlet of the feed box 2. Since the screen 4 is arranged at an angle inside the feed box 2, the material slides downwards along the surface of the screen 4 under gravity. Simultaneously, the vibration motor 14 is activated, and the vibration generated by the motor 14 is transmitted to the feed box 2 and the screen 4, causing the screen 4 to vibrate at a high frequency. Under the action of vibration, the material continuously jumps and slides on the screen. Material that meets the aperture requirements of the screen 4 passes through the screen and falls to the bottom of the feed box 2 below the screen 4. Impurities in the material cannot pass through the screen and, under the action of vibration and gravity, slide along the surface of the screen 4 to the lower end of the screen 4. The impurities intercepted by the screen 4 are guided to the collection box 7 by the discharge plate 5, achieving effective separation of material and impurities. The collection box 7 is fixed to the connecting box 11 by the T-shaped block groove 15 and the second fixing bolt 8. It can be disassembled periodically to clean the impurities, ensuring the continuity of the impurity collection process. Then… After the screened material enters the feed hopper 9, the motor 17 is started. The output end of the motor 17 drives the screw conveyor shaft 13 to rotate inside the feed hopper 9. The screw blades of the screw conveyor shaft 13 push the material, causing it to move along the feed hopper 9 towards the subsequent equipment, thus achieving further material conveying. During the conveying process, the screw conveyor shaft 13 conveys the material evenly and stably to equipment such as the boiler according to the set speed and flow rate. Then, when it is necessary to clean the screen 4 or the collection box 7, for the collection box 7, loosen the second fixing bolt 8, slide the collection box 7 out along the T-shaped block groove 15, pour out the impurities, and reinstall and fix it after cleaning. For the screen 4, loosen the first fixing bolt 6, slide the fixing plate 3 and the screen 4 out of the inclined groove of the feed hopper 2, clean or replace the screen 4. After cleaning, reinsert the screen 4 and the fixing plate 3 into the inclined groove, tighten the first fixing bolt 6 to fix it, and ensure that the device can continue to operate normally.

[0035] Material enters through the feed inlet of feed box 2 via the filter assembly. Since screen 4 is arranged at an angle inside feed box 2, the material slides down the surface of screen 4 under the action of gravity. At the same time, vibration motor 14 is started, and the vibration generated by vibration motor 14 is transmitted to feed box 2 and screen 4, causing screen 4 to vibrate at high frequency. Under the action of vibration, the material jumps and slides continuously on the screen. Material that meets the aperture requirements of screen 4 passes through the screen, while impurities in the material cannot pass through the screen. This effectively prevents impurities from entering the boiler feed hopper and clogging the feed channel, thereby improving the practicality and reliability of the equipment.

[0036] Structural Description: Support Base 1: As the basic support component of the entire feeding device, it is firmly installed on the ground or equipment platform, providing a solid installation foundation for other components such as the feeding hopper 9 and the connecting box 11. Its main function is to ensure that the device remains stable during operation and avoid shaking caused by external factors, thereby ensuring the smooth progress of the entire feeding process.

[0037] Feeding bin 9: Fixedly installed on the upper surface of the support base 1, with a screw conveyor shaft 13 rotatably connected inside. One end of the outer wall is fixedly connected to the connecting box 11, so that the interior of the feeding bin 9 and the interior of the connecting box 11 are interconnected. The feeding bin 9 is a key space for storing and receiving filtered materials. The screw conveyor shaft 13 can further transport the materials to equipment such as boilers. Its internal space size and structural design determine the storage capacity and smoothness of the conveying.

[0038] Connecting box 11: Fixedly installed on the outer wall of one end of the feeding hopper 9, it is the core hub connecting the feeding hopper 9 and the filter assembly. The interior of the connecting box 11 is connected to both the feeding hopper 9 and the feeding box 2. Two T-shaped block grooves 15 are opened on one side of the outer wall for installing the collection box 7. The T-shaped block grooves 15 cooperate with the T-shaped blocks of the collection box 7 to realize the sliding installation and fixation of the collection box 7, which facilitates the cleaning and disassembly of the collection box 7. At the same time, the connecting box 11 plays a transition and buffer role to ensure that the material smoothly enters the feeding hopper 9 from the feeding box 2.

[0039] Feed box 2: As the starting point of material filtration, compression spring bolts 10 are installed on the outer walls of the four corners at the bottom. The compression spring bolts 10 are connected to the upper end of the connecting box 11, so that the interior of the feed box 2 is connected to the interior of the connecting box 11, thereby ensuring that the material can pass through smoothly. An inclined groove is opened on one side of the outer wall of the feed box 2 for installing the screen 4. The screen 4 is arranged at an inclination inside the feed box 2. A vibration motor 14 is installed on the outer wall away from the discharge plate 5 to provide vibration power during the material filtration process. The feed port of the feed box 2 is used to receive the material, and the discharge plate 5 is fixedly installed at the discharge port. It works with the screen 4 to realize the filtration and conveying of the material.

[0040] Fixed plate 3: One side of the outer wall is tightly fixed to one side of the outer wall of the screen 4, which is used to stabilize the position of the screen 4 in the feed box 2. The outer wall of the fixed plate 3 is threaded with two first fixing bolts 6. The first fixing bolts 6 cooperate with the first fixing bolt groove 12 on the feed box 2 to firmly install the fixed plate 3 and the screen 4 in the feed box 2, ensuring that the screen 4 will not be displaced during the filtration process and ensuring the filtration effect.

[0041] Screen 4: The outer wall of the screen is slidably connected to the inclined groove of the outer wall of the feed box 2. It is arranged at an inclination inside the feed box 2. This design is conducive to the smooth sliding of materials on the screen by gravity and vibration. Screen 4 is the core of the filter assembly. Its mesh size is designed according to the size of the materials and impurities. It can effectively intercept impurities and allow qualified materials to pass through, thereby achieving the separation of materials and impurities. Screen 4 is used in conjunction with the discharge plate 5 on the feed box 2 to control the flow direction and filtration speed of materials.

[0042] Discharge plate 5: Fixedly installed at the discharge port on one side of the feed box 2, it works in conjunction with the screen 4 and the collection box 7 to guide the impurities intercepted by the screen 4 into the collection box 7. Its shape and position design ensure the correct diversion of impurities.

[0043] Collection box 7: The outer walls of the two T-shaped blocks on one side are slidably connected to the T-shaped block groove 15 of the connecting box 11. The T-shaped blocks are threaded with second fixing bolts 8. The collection box 7 is firmly fixed to the connecting box 11 by the cooperation of the second fixing bolts 8 with the second fixing bolt groove 16 at the upper end of the T-shaped block groove 15. The collection box 7 is used to collect the impurities filtered out by the screen 4. Its capacity is designed according to the actual use, which facilitates regular cleaning and avoids the accumulation of impurities that affect the filtration effect.

[0044] Compression spring bolts 10: There are four compression spring bolts 10, which are installed on the outer walls of the four corners at the bottom of the feed box 2. They are used to connect the feed box 2 and the connecting box 11. The spring in the compression spring bolt 10 has a buffering effect. When the feed box 2 is affected by the vibration of the vibrating motor 14, it can reduce the impact of vibration on the connection part, and at the same time make the feed box 2 have a certain elastic vibration amplitude, which enhances the filtering effect of the screen 4.

[0045] First fixing bolt 6: There are two first fixing bolts 6. They are threaded to the outer wall of the fixing plate 3. The threaded end near the first fixing bolt groove 12 extends to the outside of the fixing plate 3 and is threaded to the first fixing bolt groove 12 of the feed box 2. The function of the first fixing bolt 6 is to tightly fix the fixing plate 3 and the screen 4 in the feed box 2, so as to ensure that the screen 4 is stable and reliable during the filtration process and will not loosen due to vibration or other factors.

[0046] Second fixing bolt 8: There are two second fixing bolts 8. They are threadedly connected to the outer wall of the T-shaped block of the collection box 7. The end near the second fixing bolt groove 16 extends into the T-shaped block groove 15 and is threadedly connected to the second fixing bolt groove 16. The second fixing bolt 8 is used to fix the collection box 7, ensuring that the collection box 7 remains stable during the operation of the device and will not fall off due to vibration or other reasons, thus ensuring the normal operation of impurity collection.

[0047] Vibration motor 14: Installed on the outer wall of the feed box 2 away from the discharge plate 5. When working, it generates vibration, which drives the feed box 2 and the screen 4 to vibrate together. The vibration frequency and amplitude of the vibration motor 14 are precisely designed to enable the material to move fully on the screen, improve filtration efficiency, prevent material from clogging the screen holes, and ensure the smooth material filtration process.

[0048] Screw conveyor shaft 13: Rotatably connected inside the feed hopper 9, with one end fixedly connected to the output end of the motor 17. Driven by the motor 17, the screw conveyor shaft 13 rotates, conveying the filtered material in the feed hopper 9 to the subsequent equipment. The shape and spacing of the screw blades of the screw conveyor shaft 13 are designed according to the characteristics of the material to ensure the uniformity and stability of the material conveying.

[0049] Motor 17: It is fixedly installed on the outer wall of the feed hopper 9 at the end away from the discharge port. The output end extends into the feed hopper 9 and is fixedly connected to one end of the screw conveyor shaft 13. Motor 17 provides power for the rotation of screw conveyor shaft 13. Its power is selected according to the conveying requirements of feed hopper 9 to ensure that the material can be conveyed at the required speed and flow rate.

[0050] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A biomass pellet boiler anti-clogging feeding device, comprising a support base (1), a feeding hopper (9), and a connecting box (11), characterized in that: A filter assembly is provided on the connecting box (11); The filter assembly includes a feed box (2), a fixing plate (3), a screen (4), a discharge plate (5), and a collection box (7). The four corners of the feed box (2) are all equipped with compression spring bolts (10). The outer wall of the fixing plate (3) is threaded with two first fixing bolts (6). Two first fixing bolt slots (12) are opened on one side of the outer wall of the feed box (2). The discharge plate (5) is fixedly installed at the discharge port on one side of the feed box (2). Among them, two T-shaped block grooves (15) are opened on one side of the outer wall of the connecting box (11), and the upper inner wall of the two T-shaped block grooves (15) is provided with a second fixing bolt groove (16). The outer walls of the two T-shaped blocks on the collection box (7) are threaded with a second fixing bolt (8). A vibration motor (14) is installed on the outer wall of the feed box (2) away from the discharge plate (5).

2. The anti-clogging feeding device for biomass pellet boilers according to claim 1, characterized in that: The outer wall of the screen (4) is slidably connected to the inclined groove opened on the outer wall of the feed box (2), and one side of the outer wall of the fixing plate (3) is fixedly connected to one side of the outer wall of the screen (4). The screen (4) is arranged at an angle inside the feed box (2).

3. The anti-clogging feeding device for biomass pellet boilers according to claim 1, characterized in that: The ends of the two first fixing bolts (6) near the first fixing bolt groove (12) are threaded to the outside of the fixing plate (3) and respectively connected to the internal threads of the corresponding first fixing bolt groove (12); The screen (4) is used in conjunction with the discharge plate (5) on the feed box (2).

4. The anti-clogging feeding device for biomass pellet boilers according to claim 1, characterized in that: The feed box (2) is connected to the upper end of the connecting box (11) by four compression spring bolts (10) at the lower end, and the interior of the connecting box (11) is connected to the interior of the feed box (2); Among them, the outer walls of the two T-shaped blocks on one side of the collection box (7) are slidably connected to the interior of the corresponding T-shaped block groove (15).

5. The anti-clogging feeding device for biomass pellet boilers according to claim 1, characterized in that: The ends of the two second fixing bolts (8) near the second fixing bolt groove (16) are threaded into the interior of the T-shaped block groove (15) and respectively connected to the internal threads of the corresponding second fixing bolt groove (16); The discharge plate (5) is used in conjunction with the collection box (7).

6. The anti-clogging feeding device for biomass pellet boilers according to claim 1, characterized in that: The feeding bin (9) is fixedly installed on the upper surface of the support base (1), and the connecting box (11) is fixedly installed on the outer wall of one end of the feeding bin (9). The interior of the feeding bin (9) is connected to the interior of the connecting box (11). The feed hopper (9) is rotatably connected to a screw conveyor shaft (13). A motor (17) is fixedly installed on the outer wall of the feed hopper (9) away from the discharge port. The output end of the motor (17) extends rotatably into the feed hopper (9) and is fixedly connected to one end of the screw conveyor shaft (13).

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