A new type of coal feeder inlet gate

Abstract

This utility model discloses a novel inlet gate for a coal feeder, relating to the field of gate technology. The device includes a frame, within which a fan-shaped fixing plate is installed. A fixing block is fixedly connected to the top surface of the frame at the top of the fan-shaped fixing plate. A through-hole for coal is provided on the fan-shaped fixing plate, and a flange is located outside the coal hole. Through-grooves are provided on both sides of the fan-shaped fixing plate, within which symmetrical fan-shaped gates are slidably connected. The top of each fan-shaped gate is rotatably connected to the fixing block via a hinge. A driving mechanism is provided on both sides of each fan-shaped gate. Coal enters through the coal hole, and the fan-shaped gates can rotate freely around the hinges within the grooves. The two sets of gates open and close relative to each other, sharing the impact force on the gates. The driving mechanism controls the opening and closing of the fan-shaped gates, facilitating opening and closing and improving processing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of gate technology, specifically a new type of gate for coal feeder inlet. Background Technology

[0002] In coal-fired power plants, the coal feeder is an important component of positive pressure direct-fired pulverizing systems. Its function is to adjust the coal feed rate according to the boiler load requirements and to uniformly and continuously feed the raw coal in the raw coal hopper into the coal mill. The coal feeder inlet gate is used to isolate the raw coal hopper from the coal feeder. When the coal feeder is running, the coal feeder inlet gate is opened; when the coal feeder is stopped, the coal feeder inlet gate is closed.

[0003] Traditional electric gate valves have a simple structure. During use, the gate valves of the coal feeder are subjected to the impact of coal for a long time, which can easily cause damage to the gate valves. Two sets of gate valves need to open and close in opposite directions to share the impact force on the gate valves. Moreover, the existing opening and closing methods are relatively complicated, which affects the opening and closing efficiency and thus affects the processing efficiency.

[0004] Based on this, a new type of coal feeder inlet gate is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0005] The purpose of this utility model is to provide a new type of inlet gate for a coal feeder, in order to solve the problems in the background art where the traditional electric gate has a simple structure, and during use, the gate is easily damaged by the long-term impact of coal. It requires two sets of gates to open and close relative to each other to share the impact force on the gate. In addition, the existing opening and closing method is relatively complicated, which affects the opening and closing efficiency and thus affects the processing efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A novel coal feeder inlet gate includes a frame, within which a fan-shaped fixing plate is installed. A fixing block is installed at the top of the fan-shaped fixing plate and is fixedly connected to the top surface of the frame. A through coal hole is provided on the fan-shaped fixing plate, and through sliding grooves are provided on both sides of the fan-shaped fixing plate. Symmetrical fan-shaped gates are slidably connected in the sliding grooves. The top of the fan-shaped gate is rotatably connected to the fixing block by a hinge. A drive mechanism is provided on both sides of the fan-shaped gate.

[0008] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0009] In one alternative: a fixing frame is provided at the top of the frame, and symmetrical fixing seats are provided on both sides of the fixing frame, with a first rotating shaft provided inside the fixing seats.

[0010] In one alternative: the end of the fan-shaped gate is provided with a connecting block, and the connecting block is symmetrically arranged on both sides of the fan-shaped gate.

[0011] In one alternative: the top of the frame is provided with symmetrical movable slots, and the movable slots are located on both sides of the fixed frame.

[0012] In one alternative: the driving mechanism includes an electric push rod located in a movable groove, a connecting plate is provided on the outer side of the electric push rod, the outer end of the connecting plate is rotatably connected to a first rotating shaft, and a mounting seat is provided at the output end of the electric push rod, and the mounting seat is rotatably connected to the connecting block via a second rotating shaft.

[0013] In one alternative: a flange is provided on the outside of the coal hole on the fan-shaped fixing plate, and the flange is provided with a plurality of mounting holes.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] In this invention, coal enters through a coal hole, and the fan-shaped gate can rotate freely within the slide groove around the hinge. The two sets of gates open and close relative to each other, which can share the impact force on the gates. The fan-shaped gate is controlled to open and close by a drive mechanism, which facilitates opening and closing and improves processing efficiency. Attached Figure Description

[0016] Figure 1 This is a first-view overall structural diagram of the present invention.

[0017] Figure 2 This is a schematic diagram of the overall structure of the present invention from a second perspective.

[0018] Figure 3 This is a schematic diagram of the overall structure of this utility model from a third-view perspective.

[0019] Figure 4 This is a schematic diagram of the fan-shaped fixing plate structure of this utility model.

[0020] Figure reference numerals: 1. Frame; 2. Sector-shaped fixing plate; 3. Fixing block; 4. Coal feed hole; 5. Slide groove; 6. Sector-shaped gate; 7. Hinge; 8. Fixing frame; 9. Fixing seat; 10. First rotating shaft; 11. Connecting plate; 12. Electric push rod; 13. Movable groove; 14. Connecting block; 15. Mounting seat; 16. Second rotating shaft; 17. Flange; 18. Mounting hole. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0022] In one embodiment, such as Figures 1-4 As shown, a novel coal feeder inlet gate includes a frame 1, a fan-shaped fixing plate 2 inside the frame 1, a fixing block 3 fixedly connected to the top surface of the frame 1 at the top of the fan-shaped fixing plate 2, a through coal hole 4 on the fan-shaped fixing plate 2, and through grooves 5 on both sides of the fan-shaped fixing plate 2. Symmetrical fan-shaped gates 6 are slidably connected in the grooves 5. The top of the fan-shaped gates 6 is rotatably connected to the fixing block 3 by a hinge 7. A drive mechanism is provided on both sides of the fan-shaped gates 6. Coal enters through the coal hole 4, and the fan-shaped gates 6 can rotate freely around the hinge 7 in the grooves 5. The two sets of gates open and close relative to each other, which can share the impact force on the gates. The drive mechanism controls the opening and closing of the fan-shaped gates 6, which is convenient for opening and closing and improves processing efficiency.

[0023] In one embodiment, such as Figure 1 As shown, a fixed frame 8 is provided on the top of the frame 1, and symmetrical fixed seats 9 are provided on both sides of the fixed frame 8. A first rotating shaft 10 is provided inside the fixed seat 9, and the fixed seat 9 facilitates the connection of the electric push rod 12.

[0024] In one embodiment, such as Figure 1 As shown, a connecting block 14 is provided at the end of the fan-shaped gate 6. The connecting block 14 is symmetrically arranged at both ends of the fan-shaped gate 6. The connecting block 14 is convenient to connect to the output end of the electric push rod 12.

[0025] In one embodiment, such as Figure 1 As shown, the top of the frame 1 is provided with symmetrical movable slots 13, and the movable slots 13 are located on both sides of the fixed frame 8. The movable slots 13 facilitate the lifting and lowering of the electric push rod 12.

[0026] In one embodiment, such as Figure 1 As shown, the drive mechanism includes an electric push rod 12, which is located in the movable groove 13. A connecting plate 11 is provided on the outer side of the electric push rod 12. The outer end of the connecting plate 11 is rotatably connected to the first rotating shaft 10. A mounting seat 15 is provided at the output end of the electric push rod 12. The mounting seat 15 and the connecting block 14 are rotatably connected through the second rotating shaft 16. Starting the electric push rod 12 can drive the connecting block 14 to move, thereby driving the sector gate 6 to rotate and adjusting the opening and closing state of the sector gate 6, thereby controlling the opening and closing of the coal hole 4 and improving the opening and closing efficiency.

[0027] In one embodiment, such as Figure 1 As shown, a flange 17 is provided on the outside of the coal hole 4 on the fan-shaped fixing plate 2. The flange 17 is provided with several mounting holes 18, and the coal hole 4 is directly installed on the pipeline through the flange 17.

[0028] Working principle: In use, the coal hole 4 is directly installed on the pipeline through the flange 17. The coal enters through the coal hole 4. The sector gate 6 can rotate freely around the hinge 7 in the slide groove 5. The two sets of gates open and close relative to each other, which can share the impact force on the gate. Activating the electric push rod 12 can drive the connecting block 14 to move, thereby driving the sector gate 6 to rotate. Adjusting the opening and closing state of the sector gate 6 can control the opening and closing of the coal hole 4, which is convenient to use, improves the opening and closing efficiency, and thus improves the processing efficiency.

Claims

1. A novel coal feeder inlet gate, comprising a frame (1), characterized in that, A fan-shaped fixing plate (2) is provided inside the frame (1). A fixing block (3) is provided on the top of the fan-shaped fixing plate (2) and is fixedly connected to the top surface inside the frame (1). A through coal hole (4) is provided on the fan-shaped fixing plate (2). Through sliding grooves (5) are provided on both sides of the fan-shaped fixing plate (2). A symmetrical fan-shaped gate (6) is slidably connected in the sliding groove (5). The top of the fan-shaped gate (6) is rotatably connected to the fixing block (3) through a hinge (7). A driving mechanism is provided on both sides of the fan-shaped gate (6).

2. The novel coal feeder inlet gate according to claim 1, characterized in that, The frame (1) is provided with a fixed frame (8) at the top, and symmetrical fixed seats (9) are provided on both sides of the fixed frame (8). A first rotating shaft (10) is provided inside the fixed seat (9).

3. The novel coal feeder inlet gate according to claim 2, characterized in that, The fan-shaped gate (6) is provided with a connecting block (14) at its end, and the connecting block (14) is symmetrically arranged on both sides of the fan-shaped gate (6).

4. The novel coal feeder inlet gate according to claim 3, characterized in that, The top of the frame (1) is provided with symmetrical movable slots (13), and the movable slots (13) are located on both sides of the fixed frame (8).

5. The novel coal feeder inlet gate according to claim 4, characterized in that, The driving mechanism includes an electric push rod (12), which is located in the movable groove (13). A connecting plate (11) is provided on the outside of the electric push rod (12). The outer end of the connecting plate (11) is rotatably connected to the first rotating shaft (10). A mounting seat (15) is provided at the output end of the electric push rod (12), and the mounting seat (15) is rotatably connected to the connecting block (14) through a second rotating shaft (16).

6. The novel coal feeder inlet gate according to claim 1, characterized in that, A flange (17) is provided on the fan-shaped fixing plate (2) outside the coal hole (4), and a number of mounting holes (18) are provided on the flange (17).

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