Coal conveying starting device

Abstract

The utility model provides a coal conveying starting device, which relates to the field of coal conveying and comprises a coal conveyor and a feed hopper, a conveying belt is mounted on the inner side of the coal conveyor in a transmission manner, the feed hopper is fixed on the left side of the upper end face of the coal conveyor, a dust shield is fixed on the upper surface of the coal conveyor, a first humidity sensor is mounted in the middle of the lower surface of the dust shield, and a second humidity sensor is mounted in the middle of the lower surface of the dust shield. A dust collection net opening is formed in the lower surface of the dust shielding plate, the upper end of the dust collection net opening is connected with a dust collection pipeline, the lower end of the dust shielding plate is connected with a first material uniformizing plate and a second material uniformizing plate through a rotating shaft, and the axial surface of the upper end of the first material uniformizing plate is connected with the second material uniformizing plate through a transmission gear and an idle wheel; material pushing columns are welded to the lower end face of the first material uniformizing plate and the lower end face of the second material uniformizing plate. The problem that in the prior art, when raw coal is guided into a conveying belt through a coal falling hopper, uneven distribution is prone to occurring, a dust falling mechanism wets a part of the conveying belt, and a large amount of raw coal is bonded is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal conveying, in particular to a coal conveying starting device. Background Technique

[0002] A coal conveying device refers to a device for transporting coal. Its installation form can be divided into two types: a coal conveying corridor and a coal conveying trestle. The coal conveying corridor is similar to a trench, generally an underground or semi-underground concrete structure, and the conveyor is installed in the corridor, and the coal is transported through the corridor by the conveyor; the coal conveying trestle is generally mainly made of steel structure, erected overhead, some are enclosed and some are not, and a conveyor is installed on it to transport coal. Its transportation methods include belt conveying, pneumatic conveying, and pipeline conveying, etc. Belt conveying is the most widely used. After retrieval, in the prior art (publication number: CN202021230138.8), a raw coal conveying device is described. It is recorded in the text that "a coal inlet is installed at the conveying end of the installation frame, and the coal inlet includes a support frame and a coal dropping hopper. The support frame is fixedly installed at the conveying ends of two installation frames, and a coal dropping hopper is fixedly installed on the support frame. A rubber pad for reducing the impact force of raw coal is embedded in the inner wall of the coal dropping hopper. The raw coal is injected into the coal dropping hopper and enters the conveyor belt along with the coal dropping hopper, and the rubber pad well reduces the impact force of the raw coal spreading on the conveyor belt". However, in the prior art, when the coal dropping hopper guides the raw coal onto the conveyor belt, it is easy to have uneven distribution, resulting in the problem that the dust reduction mechanism wets a local conveyor belt and causes a large amount of raw coal to adhere. Content of the Utility Model

[0003] In order to overcome the defects existing in the prior art, a coal conveying starting device is provided to solve the problem that when the coal dropping hopper guides the raw coal onto the conveyor belt in the prior art, it is easy to have uneven distribution, resulting in the problem that the dust reduction mechanism wets a local conveyor belt and causes a large amount of raw coal to adhere.

[0004] To achieve the above object, a coal conveying starting device is provided, including: a coal conveyor and a feeding hopper. A conveyor belt is installed inside the coal conveyor in a driving manner, and a feeding hopper is fixed at the left side of the upper end surface of the coal conveyor.

[0005] A dust shielding plate is fixed on the upper surface of the coal conveyor. A humidity sensor 1 is installed in the middle of the lower surface of the dust shielding plate. A dust suction net opening is arranged on the lower surface of the dust shielding plate. The upper end of the dust suction net opening is connected with a dust suction pipe. The lower end of the dust shielding plate is connected with a first material distributing plate and a second material distributing plate through a rotating shaft. The upper end shaft surface of the first material distributing plate is connected with the second material distributing plate through a transmission gear and an idler gear. Pushing columns are welded on the lower end surfaces of the first material distributing plate and the second material distributing plate.

[0006] Furthermore, the right side surface of the feeding hopper is closely attached to the dust shielding plate. A dust reduction water pipe is connected to the upper surface of the dust shielding plate. Mist nozzles are distributed at the right end of the second material distributing plate.

[0007] Further, a liquid guide cavity is formed inside the dust shield, and the dust reduction water pipe is communicated with the atomizing nozzle through the liquid guide cavity. A second humidity sensor is installed at the right end of the dust shield.

[0008] Further, a stepper motor is fixed on the upper surface of the dust shield. The lower end of the stepper motor is connected to the rotating shaft at the upper end of the second material leveling plate, and an idler wheel is meshed between the transmission gears.

[0009] Further, the first material leveling plate and the second material leveling plate are symmetrically distributed at the upper end face of the conveyor belt, and a strip brush plate is inserted on the upper surface of the second material leveling plate.

[0010] Further, a heater is installed inside the lower end of the dust shield, and a transparent plate is hermetically fixed to the lower end face of the heater; and the lower surface of the transparent plate is in contact with the bristles of the strip brush plate.

[0011] Further, the first material leveling plate, the second material leveling plate, the transmission gears, the idler wheel and the pushing column constitute the starting material leveling mechanism of the coal conveyor.

[0012] The beneficial effects of the present utility model are as follows. The coal conveying starting device of the present utility model utilizes the synchronous reverse rotation of the first material leveling plate and the second material leveling plate to push the raw coal entering the conveyor belt left and right reciprocally. After the raw coal with uneven feeding is pushed by the pushing and leveling plate moving left and right reciprocally, it is distributed on the conveyor belt in a relatively flat manner, which is convenient for the coal conveyor to start and convey the raw coal more smoothly and evenly, avoiding the conveyor belt surface of the coal conveyor being sprayed with dust reduction liquid, reducing the adhesion of the raw coal, improving the coal conveying effect of the coal conveying starting device, detecting the humidity of the raw coal starting through two groups of humidity sensors, facilitating the control of the dust reduction method according to the humidity of the raw coal, and enhancing the adaptability of the coal conveying starting device. Description of the Drawings

[0013] Figure 1 It is a front view structural schematic diagram of the coal conveying starting device of the embodiment of the present utility model.

[0014] Figure 2 It is a front view sectional structural schematic diagram of the coal conveying starting device of the embodiment of the present utility model.

[0015] Figure 3 It is a bottom view structural schematic diagram of the dust shield and the scraping and leveling plate of the embodiment of the present utility model.

[0016] Figure 4 It is a partial top view structural schematic diagram of the coal conveying rack of the embodiment of the present utility model.

[0017] In the figure: 1. Coal conveyor; 11. Dust shield; 12. Conveyor belt; 13. Transparent plate; 14. Liquid guide cavity; 15. Humidity sensor I; 16. Humidity sensor II; 2. Feed hopper; 3. Dust suction pipe; 31. Dust suction net opening; 4. Dust reduction water pipe; 41. Atomizing nozzle; 5. First material leveling plate; 51. Second material leveling plate; 52. Driving gear; 53. Idler gear; 54. Stepper motor; 55. Pushing column; 56. Strip brush plate; 6. Heater. Specific implementation mode

[0018] Refer to Figures 1 to 4 As shown, the utility model provides a coal conveying and starting device, including: a coal conveyor 1 and a feed hopper 2. A conveyor belt 12 is installed inside the coal conveyor 1 in a driving manner. The feed hopper 2 is fixed at the left side of the upper end surface of the coal conveyor 1.

[0019] A dust shield 11 is fixed on the upper surface of the coal conveyor 1. A humidity sensor I 15 is installed in the middle of the lower surface of the dust shield 11. A dust suction net opening 31 is arranged on the lower surface of the dust shield 11. The upper end of the dust suction net opening 31 is connected to a dust suction pipe 3. The lower end of the dust shield 11 is connected to a first material leveling plate 5 and a second material leveling plate 51 through a rotating shaft. The upper end shaft surface of the first material leveling plate 5 is connected to the second material leveling plate 51 through a driving gear 52 and an idler gear 53. Pushing columns 55 are welded on the lower end surfaces of the first material leveling plate 5 and the second material leveling plate 51.

[0020] During coal conveying, raw coal falls onto the conveyor belt 12 of the coal conveyor 1 through the feed hopper 2. First, the raw coal on the conveyor belt 12 is dispersed and made uniform by the reversely and synchronously rotating first material leveling plate 5 and second material leveling plate 51. At the same time, the humidity sensor I 15 detects the humidity of the raw coal. When the humidity is high, dust reduction is carried out through the dust suction net opening 31. When the humidity is low, the atomizing nozzle 41 is opened for spray dust reduction. The evenly pushed raw coal is conveyed to the coal storage bin after dust reduction treatment.

[0021] In this embodiment, the right side surface of the feed hopper 2 is closely attached to the dust shield 11. A dust reduction water pipe 4 is connected to the upper surface of the dust shield 11. Atomizing nozzles 41 are distributed at the right end of the second material leveling plate 51. A liquid guide cavity 14 is opened inside the dust shield 11. The dust reduction water pipe 4 is communicated with the atomizing nozzles 41 through the liquid guide cavity 14. A humidity sensor II 16 is installed at the right end of the dust shield 11.

[0022] As a preferred implementation mode, the dust shield 11 is connected to the feed hopper 2, which is convenient for the dust raised by the raw coal falling onto the conveyor belt 12 to disperse into the external environment. When the humidity sensor I 15 detects that the humidity of the raw coal is low, the atomizing nozzle 41 sprays water to carry out dust reduction on the raw coal at the starting place of the coal conveyor 1. When the humidity is high, the dust suction net opening 31 is opened for dust suction, and at the same time, the heater 6 is heated to reduce the humidity of the raw coal at the starting place and reduce the adhesion of the raw coal.

[0023] In this embodiment, a stepping motor 54 is fixed on the upper surface of the dust shield 11. The lower end of the stepping motor 54 is connected to the rotating shaft of the upper end of the second material leveling plate 51, and an idler gear 53 is meshed between the transmission gears 52.

[0024] As a preferred embodiment, the stepping motor 54 drives the first material leveling plate 5 and the second material leveling plate 51 to rotate in reverse synchronously through the transmission gears 52 and the idler gear 53, so as to evenly push and level the raw coal on the surface of the conveyor belt 12. The idler gear 53 plays a role in meshing transmission and changing the transmission direction of the two groups of transmission gears 52.

[0025] In this embodiment, the first material leveling plate 5 and the second material leveling plate 51 are symmetrically distributed on the upper end surface of the conveyor belt 12. A strip brush plate 56 is inserted on the upper surface of the second material leveling plate 51. A heater 6 is installed inside the lower end of the dust shield 11, and a transparent plate 13 is hermetically fixed on the lower end surface of the heater 6; and the lower surface of the transparent plate 13 is in contact with the bristles of the strip brush plate 56.

[0026] As a preferred embodiment, as the second material leveling plate 51 rotates, the strip brush plate 56 brushes the lower surface of the transparent plate 13 with its bristles to sweep off the coal powder adhering to the surface, so as to avoid the influence of the adhering coal powder on the heating and drying effect of the heater 6.

[0027] In this embodiment, the first material leveling plate 5, the second material leveling plate 51, the transmission gears 52, the idler gear 53 and the pusher column 55 constitute the starting material leveling mechanism of the coal conveyor 1.

[0028] As a preferred embodiment, the starting material leveling mechanism of the coal conveyor 1 facilitates the coal conveyor 1 to start and convey the raw coal more smoothly and evenly, avoids the surface of the conveyor belt 12 of the coal conveyor 1 being sprayed with the dust suppression liquid, reduces the adhesion of the raw coal, and improves the coal conveying effect of the coal conveying starting device.

[0029] The coal conveying starting device of the present utility model can effectively solve the problem that the dust suppression mechanism wets the local conveyor belt and causes a large amount of adhesion of the raw coal, facilitates the coal conveyor to start and convey the raw coal more smoothly and evenly, avoids the surface of the conveyor belt of the coal conveyor being sprayed with the dust suppression liquid, reduces the adhesion of the raw coal, improves the coal conveying effect of the coal conveying starting device, is convenient to control the dust suppression method according to the humidity of the raw coal, strengthens the adaptability of the coal conveying starting device, and is applicable to the coal conveying starting device.

Claims

1. A coal conveying and starting device, comprising: A coal conveyor (1) and a feed hopper (2), wherein a conveyor belt (12) is installed on the inner side of the coal conveyor (1) for transmission, and a feed hopper (2) is fixed on the left side of the upper end surface of the coal conveyor (1), characterized in that: A dust shielding plate (11) is fixed on the upper surface of the coal conveyor (1), a humidity sensor (15) is installed in the middle of the lower surface of the dust shielding plate (11), a dust suction net port (31) is arranged on the lower surface of the dust shielding plate (11), the upper end of the dust suction net port (31) is connected to a dust suction pipe (3), the lower end of the dust shielding plate (11) is connected to a first material balancing plate (5) and a second material balancing plate (51) via a rotating shaft, the upper end axial surface of the first material balancing plate (5) is connected to the second material balancing plate (51) via a transmission gear (52) and an idler wheel (53), and a material pushing column (55) is welded to the lower end surfaces of the first material balancing plate (5) and the second material balancing plate (51).

2. A coal conveying and starting device according to claim 1, characterized in that: A dust shielding plate (11) is tightly attached to the right side of the feed hopper (2), a dust suppression water pipe (4) is connected to the upper surface of the dust shielding plate (11), and a mist nozzle (41) is distributed at the right end of the second material distribution plate (51).

3. A coal conveying and starting device according to claim 2, characterized in that: A liquid conducting cavity (14) is provided inside the dust shielding plate (11), the dust suppression water pipe (4) is connected to the mist nozzle (41) via the liquid conducting cavity (14), and a second humidity sensor (16) is installed at the right end of the dust shielding plate (11).

4. A coal conveying and starting device according to claim 1, characterized in that: A stepper motor (54) is fixed to the upper surface of the dust shielding plate (11); the lower end of the stepper motor (54) is connected to the rotating shaft at the upper end of the second material balancing plate (51); and an idler gear (53) is meshingly connected between the transmission gears (52).

5. A coal conveying and starting device according to claim 1, characterized in that: The first material balancing plate (5) and the second material balancing plate (51) are symmetrically distributed on the upper end surface of the conveyor belt (12), and a line brush plate (56) is inserted into the upper surface of the second material balancing plate (51).

6. A coal conveying and starting device according to claim 1, characterized in that: A heater (6) is installed on the inner side of the lower end of the dust shielding plate (11), and a transparent plate (13) is sealed and fixed to the lower end surface of the heater (6); and the lower surface of the transparent plate (13) is in contact with the bristles of the strip brush plate (56).

7. A coal conveying and starting device according to claim 1, characterized in that: The first material balancing plate (5), the second material balancing plate (51), the transmission gear (52), the idler wheel (53) and the material pushing column (55) constitute a starting material balancing mechanism of the coal conveyor (1).

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