Mechanism for preventing coal feeding bin of chain grate furnace from burning

Abstract

The utility model relates to the technical field of chain grate furnaces, and discloses a mechanism for preventing combustion of a coal feeding bin of a chain grate furnace, which comprises a chain grate furnace main body and a grate chain plate, the grate chain plate is arranged in the chain grate furnace main body, and a feed port is arranged on the side surface of the chain grate furnace main body. A coal channel is formed in the bottom of a coal bin, a material blocking plate is arranged on a rotating shaft in the coal bin, a material blocking control mechanism is arranged on the outer side face of the coal bin, a material passing cylinder is arranged on the coal channel, a center shaft is rotationally connected into the material passing cylinder, and a plurality of material separating plates which are evenly distributed are connected to the center shaft. When the material blocking plates are opened through the material blocking control mechanism to enable coal to fall down, the coal can be automatically fed into the coal channel and the chain grate furnace body in batches through the multiple material partition plates, and combustion of the coal in the coal bin can be prevented under the isolation effect of the multiple material partition plates.

Description

Technical Field

[0001] The utility model relates to the technical field of chain-grate furnaces, in particular to a mechanism for preventing a coal bunker on a chain-grate furnace from burning. Background Art

[0002] The chain grate furnace, also known as the chain grate boiler, is the most widely used mechanized combustion equipment in industrial boilers. The combustion method of the chain grate furnace is moving fire bed combustion, and the fuel ignition condition is "limited ignition". The fuel enters the grate through the coal hopper. As the grate moves into the furnace, the combustion process begins. The burnt coal ash is discharged to the slag well at the tail of the grate as the grate moves.

[0003] Some chain-grate furnaces currently on the market lack flame-retardant structures. When the coal in the coal bunker is fed into the chain-grate furnace through the feed port, the burning coal at the feed port may cause the combustion of the coal in the coal bunker, which needs to be improved.

[0004] Therefore, we propose a mechanism for preventing the coal bunker on the chain furnace from burning, so as to solve the above-mentioned problems. Utility Model Content

[0005] The utility model aims to solve the problem that some current chain-type furnaces lack a flame retardant mechanism and when coal from a coal bunker is fed into the chain-type furnace through a feed port, the burning coal at the feed port may cause combustion of the coal in the coal bunker, which needs to be improved.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a mechanism for preventing the coal bunker on the chain grate furnace from burning, comprising a chain grate furnace body and a grate chain plate, the grate chain plate is arranged in the chain grate furnace body, and a feed port is opened on the side of the chain grate furnace body, a coal-pressing refractory castable layer is arranged on the top wall of the feed port, a coal bunker is arranged on the outside of the chain grate furnace body, a coal channel is arranged at the bottom of the coal bunker, and a rotating shaft is arranged near one side of the coal bunker, and a material stopper is arranged on the rotating shaft Plate, a slope block is connected to the other side of the coal bunker, the baffle plate is in contact with the lower surface of the slope block, a baffle control mechanism is arranged on the outer side of the coal bunker, a passing cylinder is arranged on the coal channel, a central axis is rotatably connected in the passing cylinder, a plurality of evenly distributed partition plates are connected to the central axis, the coal channel is in contact with the compressed coal refractory castable layer, and a coal outlet is provided at the position where the coal channel is in contact with the feed port, and a support column is arranged on the lower surface of the coal bunker near one side.

[0007] Furthermore, the material blocking control mechanism includes a mechanism ring and a worm gear, the mechanism ring is fixed to the coal bin, and a control rod is rotatably sleeved in the mechanism ring, a worm is provided near one end of the control rod, and a rotating handle is connected to the other end of the control rod, the worm gear is sleeved on the rotating shaft, and the worm gear is adapted to the worm wheel.

[0008] Furthermore, the coal channel and the coal bin surface are both provided with sealed bearings, and the rotating shaft and the central shaft are both adapted to the sealed bearings.

[0009] Furthermore, the inner bottom wall of the coal channel is configured as a slope structure.

[0010] Furthermore, a vibration motor is provided on the side of the coal bunker.

[0011] Furthermore, a bunker cover is hinged on the top of the coal bunker.

[0012] Furthermore, an observation window is provided on the outer surface of the coal bunker.

[0013] The beneficial effects of the utility model are as follows: a coal channel is provided at the bottom of the coal bin, a baffle plate is provided on the rotating shaft in the coal bin, a baffle control mechanism is provided on the outer side of the coal bin, a feeding cylinder is provided on the coal channel, a central shaft is rotatably connected in the feeding cylinder, and a plurality of evenly distributed partition plates are connected to the central shaft; when the baffle plate is opened by the baffle control mechanism to allow the coal to fall, the coal will be automatically fed into the coal channel and the chain furnace body in batches through the plurality of partition plates, and under the isolating effect of the plurality of partition plates, the combustion of the coal in the coal bin can be prevented. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a first structural schematic diagram of a mechanism for preventing the combustion of a coal bunker on a chain furnace according to the utility model;

[0015] Figure 2 This is a second structural schematic diagram of the mechanism for preventing the coal bunker on the chain furnace from burning according to the utility model;

[0016] Figure 3 This utility model Figure 2 A magnified schematic diagram of the local structure.

[0017] The names corresponding to the marks in the figure are:

[0018] 1. Chain grate furnace body; 101. Feeding port; 2. Grate chain plate; 3. Coal pressing refractory castable material layer; 4. Coal silo; 41. Support column; 5. Coal channel; 6. Rotating shaft; 7. Baffle plate; 8. Slope block; 9. Feed cylinder; 10. Center axis; 11. Partition plate; 12. Mechanism ring; 13. Worm gear; 14. Control lever; 15. Worm; 16. Turning handle; 17. Sealed bearing; 18. Vibration motor; 19. Silo cover; 20. Observation window. DETAILED DESCRIPTION

[0019] 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 belong to the scope of protection of the utility model.

[0020] Embodiments of the present utility model:

[0021] Embodiment 1

[0022] like Figure 1-Figure 3As shown, the utility model provides a mechanism for preventing the coal bunker on the chain grate furnace from burning, comprising a chain grate furnace body 1 and a grate chain plate 2, the grate chain plate 2 is arranged in the chain grate furnace body 1, and a feeding port 101 is opened on the side of the chain grate furnace body 1, a coal-pressing refractory castable material layer 3 is arranged on the top wall of the feeding port 101, a coal bunker 4 is arranged on the outside of the chain grate furnace body 1, a coal channel 5 is arranged at the bottom of the coal bunker 4, and a rotating shaft 6 is arranged near one side of the coal bunker 4, and a material stopper is arranged on the rotating shaft 6. The coal bunker 4 is provided with a material blocking control mechanism, a material passing cylinder 9 is provided on the coal channel 5, a central axis 10 is rotatably connected in the material passing cylinder 9, and a plurality of evenly distributed material partition plates 11 are connected to the central axis 10, the coal channel 5 is in contact with the coal-pressed refractory castable material layer 3, and a coal outlet is provided at the position where the coal channel 5 contacts the feed inlet 101, and the lower surface of the coal bunker 4 is close to a A support column 41 is provided at the side, and the material blocking control mechanism includes a mechanism ring 12 and a worm gear 13. The mechanism ring 12 is fixed to the coal bunker 4, and a control rod 14 is rotatably sleeved in the mechanism ring 12. A worm 15 is provided near one end of the control rod 14, and a rotating handle 16 is connected to the other end of the control rod 14. The worm gear 13 is sleeved with the rotating shaft 6, and the worm 15 is adapted to the worm gear 13. The coal channel 5 and the coal bunker 4 are both provided with sealed bearings 17. The rotating shaft 6 and the center The shaft 10 is matched with the sealed bearing 17, and the handle 16 and the control rod 14 can be rotated. The worm 15 and the worm wheel 13 cooperate to drive the rotating shaft 6 and the baffle plate 7 to rotate, so that the coal in the coal bin 4 falls. After the coal falls into the feeding cylinder 9, the baffle plate 11 will rotate due to the weight of the coal, so that the coal is sent into the chain furnace body 1 in batches. In the process of feeding, the isolation effect of multiple baffle plates 11 can prevent the combustion of the coal in the coal bin 4.

[0023] Embodiment 2

[0024] like Figure 1-Figure 3 As shown, on the basis of the first embodiment of the utility model: the inner bottom wall of the coal channel 5 is arranged as a slope structure, through such arrangement, it is convenient for the fallen coal to enter the chain furnace body 1, and a vibration motor 18 is arranged on the side of the coal bin 4, through such arrangement, it is possible to prevent the coal from being stuck in the coal bin 4, and a bin cover 19 is hinged on the top of the coal bin 4, and an observation window 20 is arranged on the outer surface of the coal bin 4, through such arrangement, it is convenient to observe the coal reserves in the coal bin 4.

Claims

1. A mechanism for preventing a coal bunker on a chain grate furnace from burning, comprising a chain grate furnace body (1) and a grate chain plate (2), wherein the grate chain plate (2) is arranged in the chain grate furnace body (1), and a feed port (101) is provided on a side of the chain grate furnace body (1). Features: A coal-pressed refractory castable layer (3) is arranged on the inner top wall of the feed port (101), a coal bunker (4) is arranged on the outer side of the chain furnace body (1), a coal channel (5) is arranged at the bottom of the coal bunker (4), and a rotating shaft (6) is arranged near one side of the coal bunker (4), a baffle plate (7) is arranged on the rotating shaft (6), a slope block (8) is connected to the other side of the coal bunker (4), the baffle plate (7) is in contact with the lower surface of the slope block (8), and the coal bunker (4) is provided with a plurality of coal channels (5) at the bottom of the coal bunker (4). ) is provided with a material blocking control mechanism on the outer side, a material passing cylinder (9) is provided on the coal material channel (5), a central axis (10) is rotatably connected inside the material passing cylinder (9), a plurality of evenly distributed material partition plates (11) are connected to the central axis (10), the coal material channel (5) is in contact with the coal-pressed refractory castable layer (3), and a coal outlet is provided at a position where the coal material channel (5) is in contact with a feed port (101), and a support column (41) is provided on the lower surface of the coal material bin (4) near one side.

2. A mechanism for preventing the coal bunker on a chain furnace from burning according to claim 1, Features: The material blocking control mechanism comprises a mechanism ring (12) and a worm gear (13); the mechanism ring (12) is fixed to the coal bunker (4); a control rod (14) is rotatably sleeved in the mechanism ring (12); a worm (15) is arranged near one end of the control rod (14); and a rotating handle (16) is connected to the other end of the control rod (14); the worm gear (13) is sleeved with the rotating shaft (6), and the worm gear (15) is adapted to the worm gear (13).

3. A mechanism for preventing the coal bunker on a chain furnace from burning according to claim 2, Features: The surfaces of the coal channel (5) and the coal bin (4) are both provided with sealed bearings (17), and the rotating shaft (6) and the central shaft (10) are both compatible with the sealed bearings (17).

4. A mechanism for preventing the coal bunker on a chain furnace from burning according to claim 1, Features: The inner bottom wall of the coal channel (5) is arranged to be a slope structure.

5. A mechanism for preventing the coal bunker on a chain furnace from burning according to claim 1, Features: A vibration motor (18) is arranged on the side of the coal bunker (4).

6. A mechanism for preventing the coal bunker on a chain furnace from burning according to claim 1, Features: A bunker cover plate (19) is hingedly connected to the top of the coal bunker (4).

7. A mechanism for preventing the coal bunker on a chain furnace from burning according to claim 1, Features: An observation window (20) is provided on the outer surface of the coal bunker (4).

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