Uniform coal feeding metering device for boiler
By designing a boiler uniform coal feeding metering device including a metering box, an electric push rod and a weighing assembly, the problem of uneven coal feeding of the boiler is solved, and the uniform supply of coal blocks and the improvement of production quality is achieved.
Patent Information
- Application Number
- CN202421599715.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-08
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-07-08
AI Technical Summary
The existing boiler coal feeding device causes uneven supply of coal blocks, affecting flame temperature and production quality.
A boiler uniform coal feeding metering device is designed, including a metering box, a first electric push rod, a weighing assembly, a storage box, a discharge port and a discharge port. The coal block is weighed through the weighing assembly, and the weighing assembly is controlled to be flipped through the first electric push rod, so that the weighed coal block is slided away, and then the coal is evenly supplied.
It achieves uniform supply of coal blocks, stabilizes flame temperature, and improves production quality.
Smart Images
Figure CN222969958U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of boiler coal feeding, in particular to a boiler uniform coal feeding metering device. Background Technique
[0002] A boiler is a mechanical device that uses the heat energy of fuel or other energy sources to heat water into hot water or steam. The original meaning of "boiler" refers to a water container heated on fire, and "furnace" refers to a place where fuel is burned. A boiler includes two major parts: the boiler and the furnace. The hot water or steam generated in the boiler can directly provide the heat energy required for industrial production and people's livelihood, or can be converted into mechanical energy through a steam power device, or further converted into electrical energy through a generator. A boiler that provides hot water is called a hot water boiler, which is mainly used for life and has a small amount of application in industrial production. A boiler that generates steam is called a steam boiler, often simply referred to as a boiler, and is mostly used in thermal power plants, ships, locomotives, and industrial and mining enterprises. During the use of a boiler, biomass fuel is replenished into the boiler drum through a coal feeding device to maintain continuous combustion in the boiler.
[0003] At present, there are already some boiler coal feeding devices on the market. These devices simply place coal blocks directly into the furnace from the feeding port. This kind of coal feeding device will cause uneven supply of coal blocks, resulting in changes in the temperature of the flame, and thus affecting the production quality. Content of the Utility Model
[0004] In order to improve the problem that the existing devices mentioned above simply place coal blocks directly into the furnace from the feeding port, which will cause uneven supply of coal blocks, resulting in changes in the temperature of the flame, and thus affecting the production quality, the utility model provides a boiler uniform coal feeding metering device.
[0005] The utility model provides a boiler uniform coal feeding metering device, adopting the following technical scheme:
[0006] A boiler uniform coal feeding metering device includes a boiler body. Both ends of the top of the boiler body are connected with support rods. A metering box is installed at the top of the two support rods. A discharge port is opened on the right side of the bottom of the metering box. A weighing assembly is hinged inside the metering box. One end of a first electric push rod is hinged to the bottom of the weighing assembly, and the other end of the first electric push rod away from the weighing assembly is hinged to the inner wall of the metering box. A storage box is installed on the top of the metering box;
[0007] A feeding port is opened on the top of the storage box. An outlet is opened between the bottom of the storage box and the top of the metering box. A baffle assembly is arranged at the bottom of the outlet. A crushing assembly is arranged inside the storage box.
[0008] By adopting the above technical solution, coal blocks are added into the interior of the storage bin for storage. When coal needs to be added, the material blocking component works to open the discharge port. At this time, the coal blocks fall on the top of the weighing component, so that the falling coal blocks can be weighed and measured. When the required weight is reached, the controller controls the material blocking component to work again to block the discharge port, and at the same time controls the first electric push rod to contract. The contraction of the first electric push rod controls the weighing component to turn over so that the weighed coal blocks slide off the weighing component. At this time, the coal blocks are added into the interior of the boiler body through the discharge port, achieving the purpose of uniform coal feeding.
[0009] Optionally, a material guiding seat is inclinedly installed on the inner bottom wall of the metering box, and the lower end of the material guiding seat is fixedly connected to the discharge port.
[0010] By adopting the above technical solution, the coal blocks after metering and weighing can be guided by the stoppers, so that they can be quickly discharged into the interior of the boiler body through the discharge port.
[0011] Optionally, the weighing component includes a mounting seat, the mounting seat is hinged inside the metering box, the bottom of the mounting seat is hingedly connected to the telescopic end of the first electric push rod, a load-bearing plate is installed on the top of the mounting seat, and a pressure sensor is arranged between the load-bearing plate and the mounting seat.
[0012] By adopting the above technical solution, the coal blocks fall on the top of the load-bearing plate, and the falling coal blocks are weighed and measured by the pressure sensor, which is convenient for uniform coal feeding in the later stage.
[0013] Optionally, stoppers are installed at both ends of the inner side wall of the metering box, and the two stoppers are located above the mounting seat.
[0014] By adopting the above technical solution, the two stoppers can form a blocking effect on both ends of the load-bearing plate.
[0015] Optionally, the material blocking component includes two second electric push rods, the two second electric push rods are respectively installed at the upper ends of both sides inside the metering box, the output ends of the two second electric push rods are both installed with material blocking plates, the tops of the two material blocking plates are both connected with sliders, and sliding grooves that are slidably matched with the sliders are formed on the inner top wall of the metering box.
[0016] By adopting the above technical solution, when the discharge port needs to be opened, the controller controls the two second electric push rods to contract. The contraction of the two second electric push rods drives the two material blocking plates to move to both sides. When the material blocking plates move, they drive the sliders to slide in the sliding grooves, so that the material blocking plates are more stable during the moving process.
[0017] Optionally, guiding seats are inclinedly installed at both ends of the inner bottom wall of the storage bin, and the lower ends of the two guiding seats are both fixedly connected to the discharge port.
[0018] By adopting the above technical solution, the crushed coal blocks can be guided by two groups of guide seats, so that the coal blocks can quickly enter the inside of the metering box from the discharge port.
[0019] Optionally, a sealing plug is inserted into the top of the feeding port.
[0020] By adopting the above technical solution, the feeding port can be blocked by the sealing plug, and it is possible to avoid the coal blocks flying out of the inside of the storage bin during the crushing process as much as possible.
[0021] Optionally, the crushing assembly includes a driving shaft, the driving shaft is connected inside the storage bin through a bearing, a driving motor for driving the driving shaft to rotate is installed on the right side of the storage bin, and crushing knives are equidistantly connected to the top and bottom of the driving shaft.
[0022] By adopting the above technical solution, when the driving motor works, the crushing knives are driven to rotate by the driving shaft, so that the coal blocks can be crushed.
[0023] In summary, the present utility model has at least the following beneficial effects:
[0024] Through the coordinated setting of the metering box, the first electric push rod, the weighing assembly, the storage bin, the discharge port and the feeding port, the coal blocks are weighed by the weighing assembly. After weighing, the weighing assembly is controlled to turn downward by starting the first electric push rod, so that the weighed coal blocks slide off the weighing assembly, and then the inside of the boiler body can be evenly fed with coal.
[0025] Through the coordinated setting of the driving motor, the driving shaft and the crushing knives, when the driving motor works, the driving shaft is driven to rotate, and the driving shaft drives the crushing knives to rotate, so that the coal blocks inside the storage bin can be crushed, and it is possible to avoid the discharge port and the feeding port being blocked due to the large size of the coal blocks, which affects the later feeding speed. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.
[0027] Figure 1 It is a schematic cross-sectional structure diagram of the present utility model;
[0028] Figure 2 It is a schematic connection structure diagram of the sealing assembly and the metering box of the present utility model;
[0029] Figure 3For the present utility model Figure 1 Schematic diagram of the structure at position A in
[0030] In the figure: 1, boiler body; 2, support rod; 3, metering box; 4, first electric push rod; 5, weighing assembly; 501, load-bearing plate; 502, pressure sensor; 503, mounting seat; 6, stop block; 7, storage bin; 8, material guiding seat; 9, discharge port; 10, material blocking assembly; 1001, chute; 1002, material blocking plate; 1003, second electric push rod; 1004, slider; 11, outlet; 12, guiding seat; 13, crushing assembly; 1301, driving motor; 1302, driving shaft; 1303, crushing knife; 14, feeding port; 15, sealing plug. Specific embodiments
[0031] The following further elaborates on the present utility model in conjunction with the Figures 1-3 accompanying drawings.
[0032] Please refer to the accompanying drawings in the specification Figure 1 In one embodiment provided by the present utility model: a boiler uniform coal feeding and metering device includes a boiler body 1. Both ends at the top of the boiler body 1 are threadedly connected with support rods 2. The tops of the two groups of support rods 2 are fixedly installed with a metering box 3. A discharge port 9 is opened on the right side of the bottom of the metering box 3. Through the discharge port 9, coal lumps can be added into the interior of the boiler body 1. A material guiding seat 8 is inclinedly installed on the inner bottom wall of the metering box 3. The lower end of the material guiding seat 8 is fixedly connected with the discharge port 9. Thus, the coal lumps after metering and weighing can be guided by the stop block 6, and quickly discharged into the interior of the boiler body 1 through the discharge port 9.
[0033] Please refer to the accompanying drawings in the specification Figure 1 and Figure 3 In the interior of the metering box 3, a weighing assembly 5 is hinged. The bottom of the weighing assembly 5 is hinged with a first electric push rod 4. The weighing assembly 5 includes a mounting seat 503. The mounting seat 503 is hinged inside the metering box 3. The bottom of the mounting seat 503 is hingedly connected with the telescopic end of the first electric push rod 4. A load-bearing plate 501 is installed on the top of the mounting seat 503. A pressure sensor 502 is arranged between the load-bearing plate 501 and the mounting seat 503. The coal lumps fall on the top of the load-bearing plate 501, and the falling coal lumps are weighed and measured by the pressure sensor 502, which is convenient for uniform coal feeding in the later stage. Stop blocks 6 are installed at both ends of the inner side wall of the metering box 3. The two groups of stop blocks 6 are located above the mounting seat 503. Through the arrangement of the two groups of stop blocks 6, a blocking effect can be formed on both ends of the load-bearing plate 501.
[0034] Please refer to the accompanying drawings in the specification Figure 1, one end of the first electric push rod 4 away from the weighing assembly 5 is hinged to the inner wall of the metering box 3, and a storage bin 7 is installed on the top of the metering box 3. A feeding port 14 is provided at the top of the storage bin 7. Coal blocks can be added into the interior of the storage bin 7 through the feeding port 14. A sealing plug 15 is inserted into the top of the feeding port 14. Thus, the feeding port 14 can be blocked by the sealing plug 15 to prevent coal blocks from flying out of the interior of the storage bin 7 during the crushing process as much as possible.
[0035] Please refer to the drawings in the specification Figure 1 , a discharge port 11 is provided between the bottom of the storage bin 7 and the top of the metering box 3. Guide seats 12 are inclined and installed at both ends of the inner bottom wall of the storage bin 7. The lower ends of the two groups of guide seats 12 are fixedly connected to the discharge port 11. Thus, the crushed coal blocks can be guided by the two groups of guide seats 12, enabling the coal blocks to quickly enter the interior of the metering box 3 through the discharge port 11.
[0036] Please refer to the drawings in the specification Figure 1 and Figure 2 , a material blocking assembly 10 is provided at the bottom of the discharge port 11. The material blocking assembly 10 includes two second electric push rods 1003. The two second electric push rods 1003 are respectively installed at the upper ends on both sides inside the metering box 3. Discharge plates 1002 are fixedly installed at the output ends of the two second electric push rods 1003. Sliders 1004 are fixedly connected to the tops of the two discharge plates 1002. A sliding groove 1001 that slidably cooperates with the slider 1004 is provided on the inner top wall of the metering box 3. When it is necessary to open the discharge port 11, the controller controls the two second electric push rods 1003 to contract. The contraction of the two second electric push rods 1003 drives the two discharge plates 1002 to move to both sides. When the discharge plates 1002 move, they drive the sliders 1004 to slide in the sliding groove 1001, so that the discharge plates 1002 are more stable during the movement process.
[0037] Please refer to the drawings in the specification Figure 1 , a crushing assembly 13 is provided inside the storage bin 7. The crushing assembly 13 includes a drive shaft 1302. The drive shaft 1302 is rotatably connected to the inside of the storage bin 7 through bearings. A drive motor 1301 for driving the drive shaft 1302 to rotate is installed on the right side of the storage bin 7. A number of crushing knives 1303 are equally spaced and connected to the top and bottom of the drive shaft 1302. When the drive motor 1301 works, it drives the crushing knives 1303 to rotate through the drive shaft 1302, so as to perform the crushing work on the coal blocks.
[0038] Working principle: During use, coal lumps are added to the interior of the storage bin 7 for storage. During the storage process, the drive motor 1301 is started. When the drive motor 1301 operates, it drives the drive shaft 1302 to rotate. The rotation of the drive shaft 1302 drives the crushing knife 1303 to rotate, thereby enabling the crushing of coal lumps. When coal needs to be fed into the interior of the boiler body 1, the controller controls the two groups of second electric push rods 1003 to contract. The contraction of the two groups of second electric push rods 1003 drives the two groups of baffle plates 1002 to move to both sides, thereby enabling the opening of the discharge port 11. At this time, the coal lumps fall on the top of the carrier plate 501, and the pressure sensor 502 is used to weigh the falling coal lumps and transmit the weight value signal to the controller. When the required weight is reached, the controller controls the second electric push rod 1003 to extend, and at the same time controls the first electric push rod 4 to contract. The extension of the second electric push rod 1003 drives the two groups of baffle plates 1002 to move and approach, thereby enabling the sealing of the discharge port 11. The contraction of the first electric push rod 4 controls the flipping of the carrier plate 501 to make the weighed coal lumps slide off the carrier plate 501. At this time, the coal lumps are added to the interior of the boiler body 1 through the discharge port 9, achieving the purpose of uniform coal feeding.
[0039] The above are all the preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.
Claims
1. A boiler uniform coal feeding metering device, comprising a boiler body (1), both ends of the top of the boiler body (1) are connected to support rods (2), and the tops of the two groups of support rods (2) are equipped with metering boxes (3), characterized in that: A discharge port (9) is provided on the right side of the bottom of the metering box (3); a weighing assembly (5) is hingedly connected inside the metering box (3); a first electric push rod (4) is hingedly connected to the bottom of the weighing assembly (5); an end of the first electric push rod (4) facing away from the weighing assembly (5) is hingedly connected to the inner wall of the metering box (3); and a material storage box (7) is installed on the top of the metering box (3); A feeding port (14) is provided at the top of the material storage box (7), a discharge port (11) is provided between the bottom of the material storage box (7) and the top of the metering box (3), a material blocking assembly (10) is provided at the bottom of the discharge port (11), and a crushing assembly (13) is provided inside the material storage box (7).
2. A boiler uniform coal feeding metering device according to claim 1, characterized in that: A material guide seat (8) is obliquely mounted on the inner bottom wall of the metering box (3), and the lower end of the material guide seat (8) is fixedly connected to a discharge port (9).
3. A boiler uniform coal feeding metering device according to claim 1, characterized in that: The weighing assembly (5) comprises a mounting seat (503), wherein the mounting seat (503) is hinged inside the metering box (3), the bottom of the mounting seat (503) is hingedly connected to the telescopic end of the first electric push rod (4), a loading plate (501) is installed on the top of the mounting seat (503), and a pressure sensor (502) is arranged between the loading plate (501) and the mounting seat (503).
4. A boiler uniform coal feeding metering device according to claim 3, characterized in that: Blocks (6) are installed at both ends of the inner wall of the metering box (3), and two groups of the block (6) are located above the mounting seat (503).
5. A boiler uniform coal feeding metering device according to claim 1, characterized in that: The material blocking assembly (10) comprises two groups of second electric push rods (1003), the two groups of the second electric push rods (1003) are respectively installed at the upper ends of both sides inside the metering box (3), the output ends of the two groups of the second electric push rods (1003) are both installed with material blocking plates (1002), the tops of the two groups of the material blocking plates (1002) are both connected with sliders (1004), and the inner top wall of the metering box (3) is provided with a slide groove (1001) that slidably cooperates with the slider (1004).
6. A boiler uniform coal feeding metering device according to claim 1, characterized in that: Guide seats (12) are obliquely mounted on both ends of the inner bottom wall of the storage box (7), and the lower ends of the two groups of guide seats (12) are fixedly connected to the discharge port (11).
7. A boiler uniform coal feeding metering device according to claim 1, characterized in that: A sealing plug (15) is inserted into the top of the feed port (14).
8. A boiler uniform coal feeding metering device according to claim 1, characterized in that: The crushing assembly (13) includes a drive shaft (1302), and the drive shaft (1302) is connected to the inside of the storage box (7) through a bearing. A drive motor (1301) for driving the drive shaft (1302) to rotate is installed on the right side of the storage box (7), and crushing knives (1303) are connected to the top and bottom of the drive shaft (1302) at equal intervals.