A dust suppression and discharging device for a coal unloading hopper at a wharf

Abstract

The utility model discloses a wharf coal unloading hopper dust suppression blanking device, including unloading hopper and the support steel frame structure of fixed installation unloading hopper, the support steel frame structure includes a plurality of vertical setting support, still include dust humidification mechanism, dust humidification mechanism includes the lifting support of lifting rolling in support, the inboard wall of lifting support is installed with the frame humidification pipe of the position of support outside, is installed with a plurality of atomizing nozzles of the direction unloading hopper on frame humidification pipe, still include a plurality of drive structure of drive lifting support lifting, still include the dust compression structure of installation in lifting support bottom position. The above structure realizes when the material is unloaded to the unloading hopper after grabbing bucket, along the height direction of unloading hopper from top to bottom and from bottom to top will the coal ash that escapes from the unloading hopper fully humidify, after humidification, the weight of coal ash further increases, and the large -area escape amplitude will decrease significantly, realize the avoidance coal dust and escape a large quantity.

Description

Technical Field

[0001] This utility model belongs to the field of coal unloading technology at wharves, and in particular relates to a dust suppression and feeding device for coal unloading hoppers at wharves. Background Technology

[0002] A wharf is an area where ships dock and unload materials, such as coal, from cargo ships. During unloading, large grab buckets seize the coal from the cargo ship and transfer it to unloading hoppers. The unloading hoppers then guide the coal to a conveyor belt for transport.

[0003] Specifically, the unloading hopper is suspended and supported by a steel frame, with its discharge end located above the belt conveyor. This method allows the unloading hopper to discharge large quantities of coal. However, in actual operation, because the grab bucket can grab a very large amount of material at a time, a large amount of coal ash dust is generated when the grab bucket tilts the material into the unloading bin.

[0004] After coal ash dust is released, it not only seriously pollutes the environment, but also severely interferes with the visibility of the unloading area and the operation of personnel due to the large amount of dust released randomly. For example, a large amount of released dust covering the top of the unloading hopper makes it impossible for the grab operator to clearly observe the unloading situation of the hopper.

[0005] Even more serious is the large amount of coal ash dust that escapes and is blown into the water environment of the dock with the airflow, causing serious water pollution in the dock area.

[0006] In the existing technology, a spraying device is installed on the top of the unloading hopper to humidify the dust that escapes during the unloading process. However, the humidification effect is not ideal in actual operation. This is because a large amount of dust not only concentrates above the hopper during the unloading process, but also sinks along the height of the hopper (coal ash has a high density). Therefore, if only the top of the unloading hopper is humidified during the unloading process, the large amount of coal ash sinking from the top of the hopper will still cause serious pollution.

[0007] Therefore, by using a dust removal device with a large dust removal area, not only can dust emission be effectively reduced during the unloading operation, preventing dust from affecting the visibility of the work area, but also the environmental pollution caused by the emission of dust can be avoided. In particular, it can significantly reduce the emission of dust into the aquatic environment, thus avoiding water pollution. Utility Model Content

[0008] Based on the above background, the purpose of this utility model is to provide a dust suppression and feeding device for coal unloading hoppers at wharves.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] A dust suppression and feeding device for a coal unloading hopper at a wharf includes an unloading hopper and a supporting steel frame structure for fixing the unloading hopper; the supporting steel frame structure includes several vertically arranged supports; characterized in that it also includes a dust humidification mechanism that moves up and down along the height direction of the unloading hopper.

[0011] The dust humidification mechanism includes a lifting bracket that slides and rises on a support frame. A frame-shaped humidification pipe located on the outer side of the support frame is installed on the inner side wall of the lifting bracket. Several atomizing nozzles facing the unloading hopper are installed on the frame-shaped humidification pipe.

[0012] The dust humidification mechanism also includes several drive structures that drive the lifting brackets to rise and fall;

[0013] The dust humidification mechanism also includes a dust suppression structure installed at the bottom of the lifting bracket, which is used to press the dust down.

[0014] Preferably, the supporting steel frame structure includes an upper support fixedly connected to the unloading hopper and a lower support fixedly installed at the bottom of the upper support;

[0015] Several connecting stiffeners are welded between the upper support and the outer wall of the unloading hopper.

[0016] The lifting bracket is fixedly connected to the bottom corner of the lower support.

[0017] Preferably, slide rails are welded onto the bracket;

[0018] The upper end of the slide rail is higher than the top of the unloading hopper;

[0019] A connecting frame beam is welded between the tops of the slide rails;

[0020] The lifting support slides on a slide rail via a series of rollers.

[0021] Preferably, the roller structure includes a roller bracket, on which a limiting roller is rotatably connected;

[0022] The slide rail has a groove that cooperates with the limiting roller.

[0023] Preferably, the lifting bracket is frame-shaped;

[0024] Several roller structures are fixedly installed at the top and bottom of the lifting bracket.

[0025] Preferably, the top two sides of the lifting bracket are driven to lift and lower via a drive structure.

[0026] The drive structure is fixedly installed on the connecting frame beam.

[0027] Preferably, the drive structure includes a motor, and a rope reel is fixedly mounted on the output shaft of the motor. A traction rope for lifting and lowering the traction lifting bracket is wound on the rope reel.

[0028] Preferably, a motor bracket is fixedly connected to the bottom of the motor, and the motor bracket is fixedly installed on the connecting frame beam.

[0029] Preferably, the dust suppression structure includes a frame-shaped dust suppression plate;

[0030] The dust suppression plate is fixedly installed on the outer wall of the lifting bracket;

[0031] Several triangular ribs are welded and fixedly connected between the top of the dust suppression plate and the lifting bracket.

[0032] This utility model has the following beneficial effects:

[0033] 1. Based on the existing unloading hopper, this utility model improves the humidification structure by designing the traditional fixed installation humidification structure into a liftable humidification structure. This allows the coal ash that escapes from the unloading hopper to be fully humidified along the height direction of the unloading hopper from top to bottom and from bottom to top after the grab bucket unloads the material. After humidification, the weight of the coal ash is further increased, and the large-area escape range will be significantly reduced, thus avoiding the large-scale escape of coal dust.

[0034] 2. During the lifting process, the entire device can be smoothly lifted and lowered relative to the unloading hopper by the guidance of the roller pulley structure.

[0035] 3. The dust suppression plate structure further presses down the humidified dust, promoting its settling on the ground and preventing it from being blown away by the air over a large area. Attached Figure Description

[0036] 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 the structures shown in these drawings without creative effort.

[0037] Figure 1 This is a schematic diagram of the overall structure in an embodiment of the present utility model;

[0038] Figure 2 This is a schematic diagram of the roller pulley structure in an embodiment of the present invention;

[0039] Figure 3 This is a schematic diagram of the frame-shaped humidification tube in an embodiment of the present invention;

[0040] Figure 4 This is a schematic diagram of the frame-shaped humidification pipe installation lifting bracket in an embodiment of this utility model;

[0041] Figure 5 This is an embodiment of the present utility model. Figure 1 Mid-top view;

[0042] Figure 6 This is an embodiment of the present utility model. Figure 1 Front view.

[0043] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0044] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0045] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0046] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0047] Example 1

[0048] like Figure 1-6 As shown, a dust suppression and feeding device for a coal unloading hopper at a wharf includes an unloading hopper 1 and a supporting steel frame structure 2 for fixing the unloading hopper 1. Specifically, the unloading hopper 1 and the supporting steel frame structure 2 for fixing the unloading hopper 1 are conventional wharf unloading hopper 1 and supporting structure for fixing the unloading hopper 1 disclosed in the prior art.

[0049] Specifically, the supporting steel frame structure 2 includes four rectangular supports 23 arranged vertically. The supports 23 serve as the supporting structure for the unloading hopper 1, suspending the unloading hopper 1 in the air.

[0050] Specifically, similar to the existing support structure of the unloading hopper 1, the support steel frame structure 2 includes an upper support 21 fixedly connected to the unloading hopper 1 and a lower support 22 fixedly installed at the bottom of the upper support 21; several connecting stiffeners are welded between the upper support 21 and the outer wall of the unloading hopper 1; and the lifting bracket 23 is fixedly connected to the four corner positions at the bottom of the lower support 22.

[0051] In order to fully humidify and reduce dust over a large area during the unloading process of the grab bucket, this utility model improves the humidification structure based on the existing unloading bucket 1. The traditional fixed installation humidification structure is designed as a liftable humidification structure. After the grab bucket unloads the material into the unloading bucket 1, the coal ash that escapes from the unloading bucket 1 is fully humidified along the height direction of the unloading bucket 1 from top to bottom and from bottom to top. After humidification, the weight of the coal ash is further increased, and the large-area escape range will be significantly reduced, thus avoiding the large-scale escape of coal dust.

[0052] Specifically, it also includes a dust humidification mechanism 3 that moves up and down along the height direction of the unloading hopper 1; the dust humidification mechanism 3 includes a lifting bracket 31 (a steel frame in the shape of a frame structure) that moves up and down on the support 23, and a frame-shaped humidification pipe 5 located on the outer side of the support 23 is installed on the inner side wall of the lifting bracket 31 (the installation method is: the four corner positions of the frame-shaped humidification pipe 5 are fixedly connected to the upper support 53, and the support 53 is fastened to the lifting bracket 31 by countersunk screws 531). Several atomizing nozzles 51 facing the unloading hopper 1 are installed on the frame-shaped humidification pipe 5.

[0053] Specifically, the shape of the frame-shaped humidification tube 5 corresponds to the shape of the lifting bracket 31, is located inside the lifting bracket 31, and is fitted onto the outside of the bracket 23.

[0054] Meanwhile, the frame-shaped humidification pipe 5 is connected to the water inlet pipe 52. According to the existing method, the water inlet pipe is connected to the external water supply hose (not shown in the figure) through the flange structure. The external water supply hose is made of flexible material to facilitate the lifting and lowering movement.

[0055] During operation, the external water supply hose pumps humidifying water into the frame-shaped humidifying pipe 5 via a water pump. The water is then sprayed out from each atomizing nozzle 51 (the atomizing nozzle 51 is a conventional atomizing nozzle 51 disclosed in the prior art) on the frame-shaped humidifying pipe 5. As a result, a humidifying zone is formed in the unloading hopper 1 area. Under continuous humidification, the weight of the unloaded coal increases, thereby significantly reducing its dispersion.

[0056] During this process, the frame-shaped humidification pipe 5-lifting bracket 31 rises and falls along the bracket 23, thereby covering a large area of ​​water mist on the unloading hopper 1, forming a water mist envelope. Therefore, a large amount of dust that escapes from the unloading hopper 1 during the material grabbing and unloading process is fully humidified and settles on the ground below the unloading hopper 1.

[0057] Example 2

[0058] like Figure 1-6 As shown, in this embodiment, based on the structure of embodiment 1, slide rails 32 are welded onto the support 23; the upper end of the slide rails 32 is higher than the top of the unloading hopper 1; at the same time, a connecting frame beam is welded between the tops of the four slide rails 32; the lifting support 31 rolls on the slide rails 32 through several roller pulley structures 33. Specifically, four roller pulley structures 33 corresponding to the slide rails 32 are fixedly installed on the top and bottom of the lifting support 31.

[0059] Specifically, the roller structure 33 includes a roller bracket 23, on which a limiting roller is rotatably connected; and a slide rail 32 is provided with a slide rail 32 groove that cooperates with the limiting roller.

[0060] During the lifting and lowering process, the entire device can be lifted and lowered smoothly by the guidance of the roller pulley structure 33.

[0061] The center positions of the top front and rear sides of the aforementioned lifting bracket 31 are driven to lift by a drive structure; the drive structure is fixedly installed on the connecting frame beam.

[0062] Specifically, the drive structure includes a motor 34, and a rope reel is fixedly mounted on the output shaft of the motor 34. A traction rope 35 for lifting and lowering the traction lifting bracket 31 is wound on the rope reel.

[0063] The bottom of the motor 34 is fixedly connected to the motor 34 bracket 23, which is fixedly installed on the connecting frame beam.

[0064] During operation, the above-mentioned lifting bracket 31-frame humidification pipe 5 structure is raised and lowered under the synchronous drive of motor 34.

[0065] The synchronous driving lifting method of the above-mentioned motor 34 (the motor 34 adopts the conventional forward and reverse servo motor 34 disclosed in the prior art) is a conventional method disclosed in the prior art. For example, the motor 34 is connected to an external power supply in parallel. Through the main switch on the circuit, the motor 34 is synchronously powered on and operated, so as to synchronously drive the winding rope pulley to rotate.

[0066] After the motor 34 drives the rope winding pulley to rotate clockwise a certain number of times (i.e., the length of the traction rope 35 lowered), it rotates counterclockwise. Controlling the clockwise and counterclockwise rotation of the rope winding pulley is a standard function of the existing servo motor 34.

[0067] Example 3

[0068] like Figure 1-6 As shown, this embodiment is based on the structure of embodiment 2. During operation, the dust is fully humidified in the above manner. After humidification, the weight of the dust increases. Therefore, in order to accelerate the dust settling (accelerating the dust settling reduces the spread of dust by air blowing), the dust humidification mechanism 3 also includes a dust pressing structure installed at the bottom of the lifting bracket 31. The dust pressing structure is used to press the dust down.

[0069] Specifically, the dust suppression structure includes a frame-type dust suppression plate 4; the dust suppression plate 4 is made of aluminum alloy plate, and during the descent of the entire device, the humidified dust is accelerated and pressed down through the dust suppression plate 4. In the existing method, the dust suppression plate 4 is fixedly installed on the outer wall of the lifting bracket 31; several triangular ribs are welded and fixedly connected between the top of the dust suppression plate 4 and the lifting bracket 31.

[0070] Because the dust suppression plate 4 has a frame structure with a rectangular through hole in the center, the air resistance during descent is not high. Furthermore, during the humidification and dust removal process, the entire device rises and falls slowly (to ensure that the dust is fully humidified). Therefore, even after the dust suppression plate 4 is installed, the entire device can still rise and fall smoothly.

[0071] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A dust suppression and discharging device for a coal unloading hopper at a wharf, comprising an unloading hopper and a supporting steel frame structure fixedly installed with the unloading hopper; the supporting steel frame structure comprises a plurality of vertically arranged supports; characterized in that, It also includes a dust humidification mechanism that moves up and down along the height of the unloading hopper; The dust humidification mechanism includes a lifting bracket that slides and rises on a support frame. A frame-shaped humidification pipe located on the outer side of the support frame is installed on the inner side wall of the lifting bracket. Several atomizing nozzles facing the unloading hopper are installed on the frame-shaped humidification pipe. The dust humidification mechanism also includes several drive structures that drive the lifting brackets to rise and fall; The dust humidification mechanism also includes a dust suppression structure installed at the bottom of the lifting bracket, which is used to press the dust down.

2. The dust suppression and downer device of the coal unloading hopper of the port according to claim 1, characterized in that, The supporting steel frame structure includes an upper support fixedly connected to the unloading hopper and a lower support fixedly installed at the bottom of the upper support; Several connecting stiffeners are welded between the upper support and the outer wall of the unloading hopper. The lifting bracket is fixedly connected to the bottom corner of the lower support.

3. The dust suppression and downer device of the coal unloading hopper of the port according to claim 1, characterized in that, Each of the brackets is welded with a slide rail; The upper end of the slide rail is higher than the top of the unloading hopper; A connecting frame beam is welded between the tops of the slide rails; The lifting support slides on a slide rail via a series of rollers.

4. The dust suppression and downer device of the coal unloading hopper of the port according to claim 3, characterized in that, The roller structure includes a roller bracket, on which a limit roller is rotatably connected; The slide rail has a groove that cooperates with the limiting roller.

5. The dust control and downer device for a coal unloading hopper of a port according to claim 4, characterized in that, The lifting support is frame-shaped; Several roller structures are fixedly installed at the top and bottom of the lifting bracket.

6. The dust suppression and downer device of the coal unloading hopper of the port according to claim 3, characterized in that, The top two sides of the lifting bracket are driven to lift and lower via a drive structure. The drive structure is fixedly installed on the connecting frame beam.

7. The dust suppression and feeding device for coal unloading hoppers at wharves according to claim 6, characterized in that, The drive structure includes a motor, and a rope reel is fixedly mounted on the output shaft of the motor. A traction rope for lifting and lowering the traction lifting bracket is wound on the rope reel.

8. The dust control and downer device for a coal unloading hopper of a port according to claim 7, characterized in that, The bottom of the motor is fixedly connected to a motor bracket, which is fixedly installed on the connecting frame beam.

9. The dust control and downer device for a coal unloading hopper of a port according to claim 1, characterized in that, The dust suppression structure includes a frame-type dust suppression plate; The dust suppression plate is fixedly installed on the outer wall of the lifting bracket; Several triangular ribs are welded and fixedly connected between the top of the dust suppression plate and the lifting bracket.

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