Fuel feeding mechanism for thermal power production boiler

By using a feeding unit and weight sensor inside the boiler to monitor fuel weight and automatically control unloading, the problems of low efficiency and poor metering in existing equipment are solved, and quantitative fuel supply and feeding process are simplified.

CN224415186UActive Publication Date: 2026-06-26PANJIN LIAOBIN HUIZHOU THERMAL POWER CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
PANJIN LIAOBIN HUIZHOU THERMAL POWER CO LTD
Filing Date
2025-06-18
Publication Date
2026-06-26

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  • Figure CN224415186U_ABST
    Figure CN224415186U_ABST
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Abstract

The utility model relates to a boiler technical field, specifically disclose a kind of fuel feeding mechanism for thermal production boiler, including box, still including feeding unit, feeding unit includes feeding assembly, support assembly, weight sensor, unloading assembly, hopper, support lug, T axle and discharge assembly, feeding assembly is fixedly connected with box, support assembly is fixedly connected with box, weight sensor is embedded in the inside of support assembly, unloading assembly is set in the upper end of support assembly, two groups of T axle are fixedly connected with unloading assembly respectively, each group of support lug is rotatably connected with T axle, hopper is fixedly connected with multiple support lug, discharge assembly is fixedly connected with box, and located the side of box. Reduce the transmission path and transmission equipment of fuel, to improve the transmission efficiency, also reduce the complexity of linkage between transmission equipment, effectively simplify the feeding process, achieve the purpose of reducing cost.
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Description

Technical Field

[0001] This utility model relates to the field of boiler technology, and in particular to a fuel feeding mechanism for a thermal production boiler. Background Technology

[0002] Currently, biomass boilers are a type of boiler that uses biomass energy as fuel. Through a fuel feeding mechanism, biomass fuel can be continuously fed and evenly spread on the reciprocating grate, improving combustion efficiency, reducing fuel waste, and increasing energy conversion efficiency, making it more energy-efficient and environmentally friendly. However, this device uses multiple sets of movable guide plates to transport fuel. Because of these multiple guide plates, the efficiency of fuel transportation is reduced. While the guide plates can evenly spread the fuel, when there is a large amount of fuel, fuel accumulation on the surface of the guide plates can occur, preventing the device from quantitatively transporting the fuel and resulting in poor metering performance.

[0003] The prior art CN220355454U provides a fuel feeding mechanism for a thermal production boiler, including a housing and a feeding pipe. The housing is equipped with a quantitative feeding device, which includes a first motor and a rotating rod. The first motor is fixedly connected to the inner surface of the housing via a bracket. The output shaft of the first motor is fixedly connected to the surface of the rotating rod via a reduction gearbox. The rotating rod slides and engages with the protruding parts of the surfaces of a first baffle and a second baffle via slides on its surface. The first baffle and the second baffle both have openings through the surface of the feed plate. The feed plate is symmetrically fixedly connected to a fixing plate, and both sides of the fixing plate are fixedly connected to the inner surface of the housing. The feed plate is symmetrically fixedly connected to a feed inclined plate.

[0004] However, in the existing technology, the feeding process is complicated by the linkage between the feeding device and the quantitative feeding device, and requires strict control and adjustment. Utility Model Content

[0005] The purpose of this utility model is to provide a fuel feeding mechanism for a thermal production boiler, which aims to solve the technical problem in the prior art where the feeding process is complicated due to the linkage between the feeding device and the quantitative feeding device, and at the same time requires strict control and adjustment.

[0006] To achieve the above objectives, this utility model employs a fuel feeding mechanism for a thermal power production boiler, comprising a housing and a feeding unit. The feeding unit includes a feeding assembly, a support assembly, a weight sensor, a discharge assembly, a hopper, lugs, a T-shaft, and a discharge assembly. The feeding assembly is fixedly connected to the housing and located on one side of the housing, with one end of the feeding assembly penetrating the housing. The support assembly is fixedly connected to the housing and located inside the housing. The weight sensor is embedded inside the support assembly. The discharge assembly is positioned within... The upper end of the support assembly, and the unloading assembly is adapted to the support assembly and the weight sensor. There are two sets of T-axis, which are fixedly connected to the unloading assembly and located at the upper end of the unloading assembly. There are multiple sets of lugs, each set of lugs is rotatably connected to the T-axis and is sleeved on the outer wall of the corresponding T-axis. The hopper is fixedly connected to multiple sets of lugs and located at the upper end of multiple sets of lugs. The discharge assembly is fixedly connected to the box and located on one side of the box.

[0007] The unloading assembly includes an unloading plate, a fixed upright, and a telescopic electric cylinder. The fixed upright is fixedly connected to the unloading plate and is located at the upper end of the unloading plate. The telescopic electric cylinder is fixedly connected to the unloading plate and is located at the upper end of the unloading plate.

[0008] The support assembly includes a support plate, positioning columns, and a mounting plate. The support plate is fixedly connected to the housing and located inside the housing. There are multiple sets of positioning columns, each set of which is fixedly connected to the support plate and located at the upper end of the support plate. The mounting plate is fixedly connected to the support plate and located at the upper end of the support plate.

[0009] The feeding assembly includes a feeding cylinder, a feeding motor, a feeding auger, a support rib, and a feeding pipe. The feeding cylinder is fixedly connected to the housing and passes through the housing. The feeding auger is rotatably connected to the feeding cylinder and is embedded inside the feeding cylinder. The feeding motor is located at one end of the feeding cylinder, and its output end is fixedly connected to the feeding auger. The two ends of the support rib are fixedly connected to the feeding cylinder and the housing, respectively, and are located between the feeding cylinder and the housing. The feeding pipe communicates with the feeding cylinder and is located on the outer wall of the feeding cylinder.

[0010] The discharge assembly includes a discharge bin and a discharge ramp. The discharge bin is fixedly connected to the box body and located inside the box body. The discharge ramp is fixedly connected to the box body and located on one side of the box body.

[0011] This utility model discloses a fuel feeding mechanism for a thermal power production boiler. The feeding unit is installed within a housing, and a discharging component is fixed within the feeding unit via a support assembly. A weight sensor is installed between the support assembly and the discharging component. The discharging component supports a T-axis, which in turn supports a lug, which in turn supports the hopper. The feeding component delivers fuel into the housing and ultimately into the upper part of the hopper. Continuous fuel addition increases the weight of the discharging component, which is monitored in real-time by the weight sensor. When the fuel at the upper part of the hopper reaches a preset weight, the discharging component unloads the fuel from the hopper to the discharge assembly, which then delivers the fuel into the boiler. This structure allows for quantitative fuel supply, reduces the fuel transmission path and transfer equipment, thereby improving transmission efficiency and reducing the complexity of inter-equipment linkages. This effectively simplifies the feeding process and reduces costs. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of a fuel feeding mechanism for a thermal power production boiler according to this utility model.

[0014] Figure 2 This is a front view of a fuel feeding mechanism for a thermal power production boiler according to this utility model.

[0015] Figure 3 This is a side view of a fuel feeding mechanism for a thermal power production boiler according to this utility model.

[0016] Figure 4 This is the utility model Figure 3 A cross-sectional view of the internal structure along the AA line.

[0017] 101-Box body, 102-Weight sensor, 103-Hopper, 104-Support lug, 105-T-shaft, 106-Unloading plate, 107-Fixed upright, 108-Telescopic electric cylinder, 109-Support plate, 110-Positioning column, 111-Mounting plate, 112-Feeding cylinder, 113-Feeding motor, 114-Feeding auger, 115-Supporting rib, 116-Feeding pipe, 117-Discharge bin, 118-Discharge ramp. Detailed Implementation

[0018] Please see Figures 1 to 4 , Figure 1 This is a schematic diagram of the structure of a fuel feeding mechanism for a thermal power production boiler according to this utility model; Figure 2 This is a front view of a fuel feeding mechanism for a thermal power production boiler according to this utility model; Figure 3 This is a side view of a fuel feeding mechanism for a thermal power production boiler according to this utility model; Figure 4 This is the utility model Figure 3 A cross-sectional view of the internal structure along the AA line.

[0019] This utility model provides a fuel feeding mechanism for a thermal power production boiler, including a housing 101 and a feeding unit. The feeding unit includes a feeding assembly, a support assembly, a weight sensor 102, a discharge assembly, a hopper 103, a support lug 104, a T-shaft 105, and a discharge assembly. The feeding assembly is fixedly connected to the housing 101 and located on one side of the housing 101, with one end of the feeding assembly penetrating through the housing 101. The support assembly is fixedly connected to the housing 101 and located inside the housing 101. The weight sensor 102 is embedded inside the support assembly, and the discharge assembly is disposed on the support assembly. The unloading assembly is located at the upper end of the component, and the unloading assembly is adapted to the support assembly and the weight sensor 102. There are two sets of T-shafts 105, which are fixedly connected to the unloading assembly and located at the upper end of the unloading assembly. There are multiple sets of lugs 104, each of which is rotatably connected to the T-shaft 105 and is fitted onto the outer wall of the corresponding T-shaft 105. The hopper 103 is fixedly connected to multiple sets of lugs 104 and located at the upper end of multiple sets of lugs 104. The discharge assembly is fixedly connected to the box 101 and located on one side of the box 101.

[0020] In this embodiment, the feeding unit is installed in the housing 101, and the unloading assembly is installed and fixed in the feeding unit by the support assembly. A weight sensor 102 is installed between the support assembly and the unloading assembly. The unloading assembly supports the T-axis 105, which in turn supports the lug 104, which in turn supports the hopper 103. The feeding assembly delivers fuel into the housing 101, where it finally falls into the upper part of the hopper 103. The continuous addition of fuel increases the weight of the unloading assembly, which is monitored in real time by the weight sensor 102. When the fuel in the upper part of the hopper 103 reaches a preset weight, the unloading assembly unloads the fuel from the hopper 103 to the discharge assembly, which then sends the fuel into the boiler.

[0021] Furthermore, the unloading assembly includes an unloading plate 106, a fixed upright 107, and a telescopic electric cylinder 108. The fixed upright 107 is fixedly connected to the unloading plate 106 and is located at the upper end of the unloading plate 106. The telescopic electric cylinder 108 is fixedly connected to the unloading plate 106 and is located at the upper end of the unloading plate 106.

[0022] In this embodiment, the unloading plate 106 supports the fixed upright 107 and the telescopic electric cylinder 108. The fixed upright 107 supports the end of the hopper 103, and the telescopic electric cylinder 108 supports the middle of the hopper 103. When the telescopic electric cylinder 108 retracts, the hopper 103 rotates clockwise around the T-axis 105 fixed on the fixed upright 107, thereby pouring the fuel in the hopper 103 into the discharge assembly.

[0023] Furthermore, the support assembly includes a support plate 109, positioning posts 110, and mounting plate 111. The support plate 109 is fixedly connected to the housing 101 and is located inside the housing 101. There are multiple sets of positioning posts 110, each set of which is fixedly connected to the support plate 109 and is located at the upper end of the support plate 109. The mounting plate 111 is fixedly connected to the support plate 109 and is located at the upper end of the support plate 109.

[0024] In this embodiment, the support plate 109 supports the positioning column 110 and the mounting plate 111. The positioning column 110 is used to limit and fix the unloading plate 106, while the mounting plate 111 is used to embed and install the weight sensor 102.

[0025] Further, the feeding assembly includes a feeding cylinder 112, a feeding motor 113, a feeding auger 114, a support rib 115, and a feeding pipe 116. The feeding cylinder 112 is fixedly connected to the housing 101 and passes through the housing 101. The feeding auger 114 is rotatably connected to the feeding cylinder 112 and is embedded inside the feeding cylinder 112. The feeding motor 113 is located at one end of the feeding cylinder 112, and the output end of the feeding motor 113 is fixedly connected to the feeding auger 114. The two ends of the support rib 115 are fixedly connected to the feeding cylinder 112 and the housing 101, respectively, and are located between the feeding cylinder 112 and the housing 101. The feeding pipe 116 communicates with the feeding cylinder 112 and is located on the outer wall of the feeding cylinder.

[0026] In this embodiment, the supporting rib 115 supports the feeding cylinder 112. During use, fuel is added to the feed pipe 116, and the fuel slides into the feeding cylinder 112 through the feed pipe 116. The feed pipe 116 has an inclined structure, which can effectively reduce the probability of blockage. The feeding motor 113 is started to rotate, thereby driving the feeding auger 114 to rotate. Under the action of the feeding auger 114, the fuel inside the feeding cylinder 112 can be discharged until it falls into the hopper 103.

[0027] Furthermore, the discharge assembly includes a discharge bin 117 and a discharge ramp 118. The discharge bin 117 is fixedly connected to the housing 101 and located inside the housing 101. The discharge ramp 118 is fixedly connected to the housing 101 and located on one side of the housing 101.

[0028] In this embodiment, when the hopper 103 unloads fuel, the fuel is poured into the discharge bin 117. By setting the inclination angle of the discharge bin 117 and the discharge ramp 118, the fuel can slide into the boiler fuel combustion area.

[0029] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.

Claims

1. A fuel feeding mechanism for a thermal power production boiler, comprising a housing, characterized in that, It also includes a feeding unit; The feeding unit includes a feeding assembly, a support assembly, a weight sensor, a discharge assembly, a hopper, lugs, a T-shaft, and a discharge assembly. The feeding assembly is fixedly connected to the housing and located on one side of the housing, with one end of the feeding assembly penetrating through the housing. The support assembly is fixedly connected to the housing and located inside the housing. The weight sensor is embedded inside the support assembly. The discharge assembly is located at the upper end of the support assembly and is compatible with the support assembly and the weight sensor. There are two sets of T-shafts, each fixedly connected to the discharge assembly and located at the upper end of the discharge assembly. There are multiple sets of lugs, each rotatably connected to a T-shaft and fitted onto the outer wall of the corresponding T-shaft. The hopper is fixedly connected to multiple sets of lugs and located at the upper end of multiple sets of lugs. The discharge assembly is fixedly connected to the housing and located on one side of the housing.

2. The fuel feeding mechanism for a thermal power production boiler as described in claim 1, characterized in that, The unloading assembly includes an unloading plate, a fixed upright, and a telescopic electric cylinder. The fixed upright is fixedly connected to the unloading plate and is located at the upper end of the unloading plate. The telescopic electric cylinder is fixedly connected to the unloading plate and is located at the upper end of the unloading plate.

3. The fuel feeding mechanism for a thermal power production boiler as described in claim 1, characterized in that, The support assembly includes a support plate, positioning posts, and a mounting plate. The support plate is fixedly connected to the housing and located inside the housing. There are multiple sets of positioning posts, each set of which is fixedly connected to the support plate and located at the upper end of the support plate. The mounting plate is fixedly connected to the support plate and located at the upper end of the support plate.

4. The fuel feeding mechanism for a thermal power production boiler as described in claim 1, characterized in that, The feeding assembly includes a feeding cylinder, a feeding motor, a feeding auger, a support rib, and a feeding pipe. The feeding cylinder is fixedly connected to the housing and passes through the housing. The feeding auger is rotatably connected to the feeding cylinder and is embedded inside the feeding cylinder. The feeding motor is located at one end of the feeding cylinder, and its output end is fixedly connected to the feeding auger. The two ends of the support rib are fixedly connected to the feeding cylinder and the housing, respectively, and are located between the feeding cylinder and the housing. The feeding pipe communicates with the feeding cylinder and is located on the outer wall of the feeding cylinder.

5. The fuel feeding mechanism for a thermal power production boiler as described in claim 1, characterized in that, The discharge assembly includes a discharge bin and a discharge ramp. The discharge bin is fixedly connected to the box body and located inside the box body. The discharge ramp is fixedly connected to the box body and located on one side of the box body.