Train loading building dust removal system

Abstract

The utility model belongs to the field of environmental protection and dust removal, and particularly discloses a dust removal system for a train loading building, which adopts the technical scheme that a telescopic dust hood capable of moving up and down is arranged on the loading building, and when the telescopic dust hood is positioned at a low point, the telescopic dust hood covers a carriage of a train to be loaded below the loading building; the top of the telescopic dust hood is communicated with an air inlet of a dust collector through a dust removal pipeline, an air outlet of the dust collector is communicated with an air inlet of a fan, and an outlet of the fan is communicated with an exhaust pipe. The telescopic dust hood acts according to the movement of the train and the movement of the discharge port, a corresponding ventilation opening is formed between the dust removal pipeline and the dust hood, dust removal working parts outside the ventilation opening are sealed in the whole process, the required air volume is small, the dust removal efficiency is high, the implementation is convenient, and the cost is low.

Description

Technical Field

[0001] The utility model belongs to the field of environmental protection dust removal, in particular to a dust removal system for a train loading building. Background Art

[0002] The loading building is a large-scale steel structure quantitative loading system, which is mainly composed of four parts: buffer bin, quantitative bin, chute and winch. The loading process has been fully automated and has the advantages of accurate measurement, fast speed and high precision. It is widely used in the unloading of various ores.

[0003] However, a large amount of dust is generated during the quantitative unloading process of the loading building, which can cause great pollution hazards and waste of resources: 1. It seriously affects the health of workers and is prone to respiratory diseases; 2. Dust is dispersed around the train carriages, reducing visibility and affecting the operation of operators; 3. Dust is dispersed in the loading building and drifts outside the loading building, polluting the environment inside and outside the workshop; 4. The dust that settles outside the carriage is basically not recycled, causing great waste of resources. The dust pollution hazards and resource waste generated during the operation of the loading building are so serious that it is very necessary to control it. Utility Model Content

[0004] In view of the problems existing in the existing dust removal methods, a train loading building dust removal system is proposed. The telescopic dust hood of the utility model moves according to the movement of the train and the activity of the unloading port, and a corresponding ventilation hole is formed between the dust removal pipe and the dust removal hood. The dust removal working parts outside the ventilation hole are fully sealed, and the required air volume is small, the dust removal efficiency is high, the implementation is convenient, and the cost is low.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a train loading building dust removal system, comprising a loading building, a telescopic dust hood which can move up and down is arranged on the loading building, when the telescopic dust hood is at a low point, it covers the train carriage to be loaded below the loading building, the top of the telescopic dust hood is connected to the air inlet of the vacuum cleaner through a dust removal pipeline, the air outlet of the vacuum cleaner is connected to the air inlet of the fan, and the outlet of the fan is connected to the exhaust pipe;

[0006] The telescopic dust hood includes a scissor-type lifting frame, a flexible sealing cloth is arranged on the outer side of the scissor-type lifting frame, lifting rods are arranged on both sides of the scissor-type lifting frame, the lifting rods are driven by a winch unit to realize reciprocating motion, and the lifting rods move up and down to drive the scissor-type lifting frame to complete contraction and expansion.

[0007] Furthermore, the scissors-type lifting frame includes a plurality of rectangular frames, and adjacent rectangular frames are connected by scissors-type connecting rods, and the scissors-type connecting rods include two head connecting rods, and one end of the head connecting rods are overlapped and hinged to the top rectangular frame, and the other ends of the two head connecting rods are hinged to the middle connecting rod, and the middle parts of the two middle connecting rods are overlapped and hinged to the first middle rectangular frame, and the subsequent middle rectangular frames are connected in sequence by the middle connecting rods, and the tail rectangular frame is connected to the middle connecting rod by the tail connecting rod.

[0008] Furthermore, there are four lifting rods, two of which are respectively arranged on both sides of the scissor-type lifting frame. The lifting rods pass through each layer of rectangular frame in turn and are fixedly connected to the rear rectangular frame. Guide wheels are arranged between the middle rectangular frame, the rear rectangular frame and the lifting rods.

[0009] Furthermore, a rubber soft curtain is arranged below the tail rectangular frame.

[0010] Furthermore, an anti-drop device is provided on the loading buildings on both sides of the telescopic dust hood, and the anti-drop device includes an electric push rod, a telescopic rod and an L-shaped connecting rod of the electric push rod, a rotating shaft is provided at the right angle part of the L-shaped connecting rod, and a stop plate that rotates with the rotating shaft is provided on the rotating shaft.

[0011] Furthermore, a gap is provided between the telescopic dust hood and the top of the stop plate after the telescopic dust hood is fully retracted.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the utility model uses the winch unit as a lifting device to drive the lifting rod and the scissor-type lifting frame to descend to a predetermined position, forming a closed space with the train carriage. Under the action of the ventilator, the dust-containing gas enters the dust removal pipe through the telescopic dust collection hood, enters the dust collector through the rigid dust collection pipe, and is discharged into the exhaust pipe by the ventilator. When the unloading is completed, the chute is automatically lifted to the locking position and bolted, the telescopic dust collection hood rises to a predetermined height, the anti-drop device is activated, and the loading is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings.

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Figure 2 This is a schematic diagram of the main view structure of the telescopic dust hood when it is unfolded.

[0016] Figure 3 for Figure 2 A partial enlarged view of point B in the middle.

[0017] Figure 4 for Figure 2A partial enlarged view of point A in the middle.

[0018] Figure 5 for Figure 2 A partial enlarged view of point C in the middle.

[0019] Figure 6 It is a schematic diagram of the side view structure of the telescopic dust hood when it is retracted.

[0020] Figure 7 for Figure 6 A partial enlarged view of point D in the middle.

[0021] Figure 8 It is a schematic diagram of the top view of the telescopic dust hood.

[0022] Fig. 9 for Figure 8 A partial enlarged view of point E in the middle.

[0023] Fig.10 for Figure 8 A partial enlarged view of point F in the middle.

[0024] In the figure, 1 is a loading building, 2 is a telescopic dust hood, 21 is a scissor-type lifting frame, 211 is a rectangular frame, 2111 is a top rectangular frame, 2112 is a middle rectangular frame, 2113 is a tail rectangular frame, 212 is a scissor-type connecting rod, 2121 is a head connecting rod, 2122 is a middle connecting rod, 2123 is a tail connecting rod, 22 is a flexible sealing cloth, 23 is a lifting rod, 24 is a winch unit, 241 is a motor, 242 is a reducer, 243 is a synchronous motion shaft, 244 is a pay-off wheel, 245 is a wire rope, 25 is a guide wheel, 26 is a rubber soft curtain, 27 is an anti-drop device, 271 is an electric push rod, 272 is an L-shaped connecting rod, 273 is a rotating shaft, 274 is a stop plate, 3 is a car box, 4 is a dust removal pipeline, 5 is a vacuum cleaner, 6 is a fan, and 7 is an exhaust duct. DETAILED DESCRIPTION

[0025] like Figure 1 As shown, a train loading building dust removal system includes a loading building 1, and a loading system for quantitatively loading trains is arranged on the loading building 1. The loading building 1 and the loading system are both prior art, and their specific structures are not described here, and their structures are not the creative points to be protected by the present utility model.

[0026] A telescopic dust hood 2 that can move up and down is provided on the loading building 1. When the telescopic dust hood 2 is at the lowest point, it covers the train carriage 3 to be loaded below the loading building 1, forming a closed space with the train carriage. The top of the telescopic dust hood 2 is connected to the air inlet of the vacuum cleaner 5 through the dust removal pipeline 4, the air outlet of the vacuum cleaner 5 is connected to the air inlet of the fan 6, and the outlet of the fan 6 is connected to the exhaust pipe 7 to discharge the dust-removed air.

[0027] When the train enters the station, the loading system automatically opens the gate of the buffer bin and discharges the material into the quantitative bin for quantitative loading. As the train enters the loading building 1 at a constant speed, the "electric eye" installed under the loading building 1 can distinguish between the locomotive and the train. The locomotive pulls the train to continue to move forward at a constant speed through the loading chute. After the first carriage 3 arrives under the bin and is positioned, the telescopic dust hood 2 starts to move, descends to a predetermined height, and forms a closed space with the train carriage. The unloading and automatic loading operation begins, and the slide bar device (electrically interlocked with the loading chute) automatically moves the slide bar, lowers the swing-type loading chute, and opens the double-wing hydraulic flat plate discharge gate under the quantitative bin to load the first quantitative material into the first carriage 3.

[0028] After loading the first carriage 3, the chute automatically lifts slightly and closes the gate. At the same time, the buffer bin flat gate automatically opens to carry out the second weighing cycle. After the quantitative measurement is completed, the vehicle moving at a constant speed has entered the next loading position, the loading chute is lowered, and the double-wing hydraulic flat gate under the quantitative bin is opened to load the second carriage 3. This continuous cycle operation continues, and the train continues to move forward at a constant speed until the last carriage 3 is loaded. The chute is automatically lifted to the locking position and bolted, and the telescopic dust hood 2 moves up to the predetermined height, and the loading is completed.

[0029] The working process of the utility model is described in detail above, from which it can be seen that the dust removal efficiency of the utility model is determined by the structure of the telescopic dust hood 2 that moves up and down with the operation of the chute equipment. In order to enable those skilled in the art to better understand the working principle of the utility model, the structure of the telescopic dust hood 2 is described in detail below.

[0030] The telescopic dust hood 2 includes a scissor-type lifting frame 21, which includes a plurality of rectangular frames 211, which are stacked up and down, and adjacent rectangular frames 211 are connected by scissor-type connecting rods 212. The existence of the scissor-type connecting rods 212 enables the plurality of rectangular frames 211 to complete the expansion and contraction actions.

[0031] The scissor-type connecting rod 212 includes two head connecting rods 2121, one end of which is hinged to the top rectangular frame 2111 after being overlapped, and the top rectangular frame 2111 is fixedly arranged on the loading building 1. The other ends of the two head connecting rods 2121 are hinged to the middle connecting rod 2122, and the middle parts of the two middle connecting rods 2122 are hinged to the first middle rectangular frame 2112 after being overlapped, and the subsequent middle rectangular frames 2112 are sequentially connected through the middle connecting rod 2122. The tail rectangular frame 2113 is connected to the middle connecting rod 2122 through the tail connecting rod 2123.

[0032] A flexible sealing cloth 22 is provided on the outside of the scissor-type lifting frame 21. The flexible sealing cloth 22 covers the outside of the entire scissor-type frame to prevent dust from escaping, and the flexible sealing cloth 22 does not affect the expansion and contraction of the scissor-type frame. In order to increase the sealing performance between the telescopic sealing cover and the carriage, a rubber soft curtain 26 is provided below the rear rectangular frame 2113. The rubber soft curtain 26 has better flexibility, and can be closely fitted to the edge of the carriage to prevent dust from escaping.

[0033] A plurality of lifting rods 23 are provided on both sides of the scissor-type lifting frame 21. Generally speaking, the number of lifting rods 23 is four. Of course, as the scissor-type lifting frame 21 increases, the number of single-side lifting rods 23 can also be appropriately increased. Two lifting rods 23 are provided on both sides of the scissor-type lifting frame 21, respectively. The lifting rods 23 pass through each layer of rectangular frame 211 in turn and are fixedly connected to the rear rectangular frame 2113. Guide wheels 25 are provided between the middle rectangular frame 2112 and the rear rectangular frame 2113 and the lifting rods 23. The existence of the guide wheels 25 can prevent the lifting rods 23 from directly generating dry friction with the rectangular frame 211, thereby affecting the movement of the lifting rods 23.

[0034] The lifting rod 23 is driven by the winch unit 24 to achieve reciprocating motion, and the lifting rod 23 moves up and down to drive the scissor-type lifting frame 21 to complete the contraction and expansion. The winch unit 24 is fixedly set on the loading building 1, and the lifting rods 23 on the same side are driven to move by one winch unit 24. The winch unit 24 includes a motor 241, a reducer 242, a synchronous motion shaft 243 and a pay-off wheel 244. The motor 241 drives the synchronous motion shaft 243 to rotate through the reducer 242, and the two pay-off wheels 244 fixed at both ends of the synchronous motion shaft 243 rotate with the synchronous motion shaft. The wire rope 245 is connected to the lifting rod 23 after passing through the guide wheel and drives the lifting rod 23 to reciprocate.

[0035] In addition, anti-drop devices 27 are provided on the loading building 1 on both sides of the telescopic dust hood 2. A plurality of anti-drop devices 27 may be provided around the telescopic dust hood 2. The anti-drop devices 27 include an electric push rod 271, a telescopic rod of the electric push rod 271 and an L-shaped connecting rod 272, a rotating shaft 273 is provided at the right angle portion of the L-shaped connecting rod 272, and a stop plate 274 is provided on the rotating shaft 273 to rotate with the rotating shaft 273.

[0036] When the unloading is finished, the chute is automatically lifted to the locking position and bolted, and after the telescopic dust hood 2 rises to a predetermined height, the anti-drop device 27 works, the electric push rod 271 pushes the L-shaped connecting rod 272 to rotate, and the L-shaped connecting rod 272 drives the rotating shaft 273 to rotate, so that the stop plate 274 rotates to the bottom of the telescopic dust hood 2. However, after the telescopic dust hood 2 is fully retracted, there is a gap between the top of the stop plate 274. When the telescopic dust hood 2 does not fall, the anti-drop device 27 does not support the telescopic dust hood 2. Only when it falls, the telescopic dust hood 2 will fall on the stop plate.

[0037] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A train loading building dust removal system, comprising a loading building (1), characterized in that: The loading building (1) is provided with a telescopic dust hood (2) that can move up and down. When the telescopic dust hood (2) is at a low point, it covers the carriage (3) of the train to be loaded located below the loading building (1). The top of the telescopic dust hood (2) is connected to the air inlet of the dust collector (5) through the dust removal pipeline (4). The air outlet of the dust collector (5) is connected to the air inlet of the fan (6). The outlet of the fan (6) is connected to the exhaust pipe (7). The telescopic dust hood (2) comprises a scissor-type lifting frame (21), a flexible sealing cloth (22) is arranged on the outer side of the scissor-type lifting frame (21), and lifting rods (23) are arranged on both sides of the scissor-type lifting frame (21), the lifting rods (23) are driven by a winch unit (24) to achieve reciprocating motion, and the lifting rods (23) move up and down to drive the scissor-type lifting frame (21) to complete the contraction and expansion action.

2. A train loading building dust removal system according to claim 1, characterized in that: The scissor-type lifting frame (21) comprises a plurality of rectangular frames (211), adjacent rectangular frames (211) are connected via scissor-type connecting rods (212), the scissor-type connecting rods (212) comprising two head connecting rods (2121), one end of the head connecting rods (2121) being hinged to a top rectangular frame (2111) after being overlapped, the other ends of the two head connecting rods (2121) being hinged to an intermediate connecting rod (2122), the middle parts of the two intermediate connecting rods (2122) being hinged to a first intermediate rectangular frame (2112) after being overlapped, subsequent intermediate rectangular frames (2112) being connected in sequence via the intermediate connecting rods (2122), and the tail rectangular frame (2113) being connected to the intermediate connecting rod (2122) via the tail connecting rod (2123).

3. A train loading building dust removal system according to claim 2, characterized in that: The number of the lifting rods (23) is four. Two lifting rods (23) are respectively arranged on both sides of the scissor-type lifting frame (21). The lifting rods (23) sequentially pass through each layer of the rectangular frame (211) and are fixedly connected to the rear rectangular frame (2113). Guide wheels (25) are arranged between the middle rectangular frame (2112), the rear rectangular frame (2113) and the lifting rods (23).

4. A train loading building dust removal system according to claim 3, characterized in that: A rubber soft curtain (26) is arranged below the tail rectangular frame (2113).

5. The train loading building dust removal system according to claim 1, characterized in that: Anti-drop devices (27) are provided on the loading buildings (1) on both sides of the telescopic dust hood (2), and the anti-drop devices (27) include electric push rods (271), the telescopic rods of the electric push rods (271) are connected to L-shaped connecting rods (272), a rotating shaft (273) is provided at the right angle portion of the L-shaped connecting rod (272), and a stop plate (274) is provided on the rotating shaft (273) and rotates with the rotating shaft (273).

6. A train loading building dust removal system according to claim 5, characterized in that: When the telescopic dust hood (2) is fully retracted, a gap is provided between the telescopic dust hood (2) and the top of the stop plate (274).

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