Dust suppression device for guide chute

Abstract

The utility model discloses a dust suppression device for a guide chute, the dust suppression device is arranged on the guide chute above a feeding belt, the dust suppression device comprises damping dust suppression mechanisms and an atomization cleaning mechanism, the atomization cleaning mechanism is suitable for being arranged between the adjacent damping dust suppression mechanisms, and the atomization cleaning mechanism comprises a lifting channel and a liquid outlet device; the liquid outlet device is arranged in the lifting channel in a lifting mode, an atomizing nozzle and a cleaning nozzle are sequentially arranged at the lower end of the liquid outlet device from bottom to top, a nozzle is formed in the lower end of the atomizing nozzle, nozzles are formed in the cleaning nozzle in the circumferential direction, and the liquid outlet device is suitable for ascending along the lifting channel so that the lifting channel can seal the nozzles of the cleaning nozzle in a matched mode. And a nozzle of the atomization spray head is exposed in the lifting channel, the liquid outlet device is suitable for descending along the lifting channel, the cleaning spray head enters the guide groove for cleaning, and the dust suppression device has the beneficial effect of being good in dust suppression effect, has the self-cleaning function and can be rapidly cleaned without disassembly.

Description

Technical Field

[0001] This application relates to the field of conveying equipment technology, specifically to a dust suppression device for a material guide trough. Background Technology

[0002] Coal conveying equipment refers to devices used for transporting coal. Its installation can be divided into two types: coal conveying corridors and coal conveying trestle bridges. Coal conveying corridors are similar to underground trenches, generally underground or semi-underground concrete structures. Conveyors are installed within the corridors, and coal is transported through the corridors using conveyors. Coal conveying trestle bridges are generally made of steel structures, erected overhead, and may be enclosed or open. Conveyors are installed on top to transport coal, and the transportation methods include belt conveying, pneumatic conveying, and pipeline conveying, with belt conveying being the most widely used.

[0003] In the coal conveying system, material guiding devices are installed at the connection between the coal chute and the conveyor belt. The material guide chute is one of the main pieces of equipment. Various air control, dust suppression and cleaning devices are installed on the material guide chute to mitigate the impact airflow and dust generated when the coal falls onto the conveyor belt, as well as to clean the conveyor belt regularly.

[0004] However, the existing dust suppression devices for feed troughs have the following drawbacks: the dust suppression effect of the current dust suppression devices is relatively average, and they do not have a cleaning function. They need to be disassembled, replaced and maintained regularly, which is inconvenient to use. Summary of the Invention

[0005] One objective of this application is to provide a dust suppression device for a feed trough that has good dust suppression effect and self-cleaning capability.

[0006] To achieve the above objectives, the technical solution adopted in this application is as follows: a dust suppression device for a feed trough, wherein the dust suppression device is disposed on the feed trough above the feed belt, the dust suppression device includes a damping dust suppression mechanism and an atomizing cleaning mechanism, the atomizing cleaning mechanism is adapted to be disposed between adjacent damping dust suppression mechanisms, the atomizing cleaning mechanism includes a lifting channel and a liquid outlet, the liquid outlet is movably disposed within the lifting channel, the lower end of the liquid outlet is provided with an atomizing nozzle and a cleaning nozzle sequentially from bottom to top, the lower end of the atomizing nozzle has a nozzle opening, the cleaning nozzle has a nozzle opening circumferentially, the liquid outlet is adapted to rise along the lifting channel, such that the lifting channel cooperates to close the nozzle opening of the cleaning nozzle, and the nozzle opening of the atomizing nozzle is exposed within the lifting channel, the liquid outlet is adapted to descend along the lifting channel, so that the cleaning nozzle enters the feed trough for cleaning.

[0007] In some embodiments, the cross-sectional shape of the cleaning nozzle is the same as the cross-sectional shape of the lifting channel.

[0008] In some embodiments, the upper part of the cleaning nozzle is hemispherical, the upper surface of the cleaning nozzle is uniformly provided with a plurality of nozzles, a closing block is arranged in the lifting channel, the lower part of the closing block is matched with the shape of the upper part of the cleaning nozzle, and the closing block is adapted to close the nozzles of the upper part of the cleaning nozzle.

[0009] In some embodiments, the dust suppression mechanism comprises a lifting controller, a mounting frame and a damping assembly, the lifting controller is connected with the mounting frame, the lifting controller is adapted to lift or lower the mounting frame, a plurality of connecting rods are arranged on the mounting frame, the damping assembly is adapted to be rotationally connected with the connecting rods one by one, and the damping assembly is adapted to swing in the conveying direction of the conveying side of the feeding belt.

[0010] In some embodiments, the damping assembly comprises a clamp and a damping curtain, the top of the damping curtain is provided with a connecting part, and the clamp is adapted to be connected and fixed with the connecting part of one or more layers of the damping curtain.

[0011] In some embodiments, the damping curtain comprises a plurality of damping strips, and the damping strips are distributed at equal intervals along the length direction of the connecting part.

[0012] In some embodiments, a primary circulating device is arranged on the material guide groove, the primary circulating device is arranged in front of the dust suppression device and forms a primary circulating air duct above the material guide groove, a shunt section is formed at the end of the material guide groove connected with the feeding device, the shunt section is perpendicular to the material guide groove, and the cross section of the shunt section has an expanding trend from top to bottom.

[0013] In some embodiments, a secondary circulating device is arranged on the material guide groove, the secondary circulating device is arranged in front of the dust suppression device and forms a secondary circulating air duct above the material guide groove, the secondary circulating air duct has an inverted V shape, and an atomizer is arranged on the material guide groove between the two ends of the secondary circulating air duct.

[0014] In some embodiments, the primary circulating device and the secondary circulating device are arranged in sequence along the feeding direction of the feeding belt.

[0015] Compared with the prior art, the dust suppression device of the material guide groove has the beneficial effects that: the dust suppression device of the material guide groove can atomize between the two damping dust suppression mechanisms during the conveying of the material, thereby reducing the probability of dust flying through the dust suppression device, and the atomized dust is more easily collected and carried out by the feeding belt, which improves the dust suppression effect and reduces environmental pollution, the cleaning function of the dust suppression device can quickly switch the atomizing cleaning mechanism from the atomizing state to the cleaning state during system cleaning, thereby efficiently cleaning the two damping dust suppression mechanisms, and the dust adhered to the two damping dust suppression mechanisms can be quickly discharged, and the two damping dust suppression mechanisms can block during cleaning to reduce liquid splashing during cleaning. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a schematic diagram of an arrangement according to a preferred embodiment of the application.

[0017] Figure 2 is a structural view according to a preferred embodiment of the application.

[0018] Figure 3 is a structural view when the atomizing cleaning mechanism is retracted according to a preferred embodiment of the application.

[0019] Figure 4 is a structural view when the atomizing cleaning mechanism is deployed according to a preferred embodiment of the application.

[0020] Figure 5 is a structural view when the damping dust suppression mechanism is installed with a damping assembly on one side according to a preferred embodiment of the application.

[0021] Figure 6 is a structural view when the damping dust suppression mechanism is installed with a damping assembly on both sides according to a preferred embodiment of the application.

[0022] In the figure: 1, feeding belt; 11, conveying side; 2, material guide groove; 3, feeding device; 4, damping dust suppression mechanism; 41, lifting controller; 42, mounting bracket; 421, connecting rod; 43, damping assembly; 431, clamp; 432, damping curtain; 4321, connecting part; 4322, damping strip; 5, atomizing cleaning mechanism; 51, lifting channel; 52, liquid outlet; 6, primary circulating device; 61, primary circulating air duct; 611, shunt section; 7, secondary circulating device; 71, secondary circulating air duct; 72, atomizer. DETAILED DESCRIPTION

[0023] Hereinafter, the present application will be further described with reference to the specific embodiments, it should be noted that the embodiments described below or technical features among the embodiments can be combined with each other to form new embodiments without conflict.

[0024] In the description of the present application, it should be noted that for the orientation words such as the terms "center", "transverse", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation and positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and cannot be understood as limiting the specific protection scope of the present application.

[0025] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application are used to distinguish similar objects, and do not necessarily have to describe a specific order or sequence.

[0026] The terms "include" and "have" and any variations thereof in the specification and claims of the present application are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units does not have to be limited to only those steps or units clearly listed, but can include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0027] The present application will be further described below with reference to the accompanying drawings:

[0028] As shown in Figures 1 to 6 The present application provides a material guiding groove dust suppression device, a conveying side 11 of a material feeding belt 1 is provided with a material guiding groove 2, a feeding device 3 is arranged at the starting end of the material guiding groove 2, the feeding device 3 and the material guiding groove 2 are connected to each other, the feeding device 3 is suitable for conveying materials to the material feeding belt 1 in the material guiding groove 2, and a dust suppression device is arranged on the material guiding groove 2.

[0029] As shown in Figures 1 to 6In the shown embodiment, the dust suppression device comprises the damping dust suppression mechanism 4 and the atomizing cleaning mechanism 5, the atomizing cleaning mechanism 5 is suitable to be arranged between adjacent damping dust suppression mechanisms 4, the atomizing cleaning mechanism 5 comprises the lifting channel 51 and the liquid outlet 52, the liquid outlet 52 is arranged in the lifting channel 51 in a lifting manner, the lower end of the liquid outlet 52 is sequentially provided with the atomizing nozzle and the cleaning nozzle from bottom to top, the lower end of the atomizing nozzle is provided with the spray opening, the cleaning nozzle is provided with the spray opening in a circumferential direction, the liquid outlet 52 is suitable to ascend along the lifting channel 51, so that the lifting channel 51 cooperates to close the spray opening of the cleaning nozzle, and the spray opening of the atomizing nozzle is exposed in the lifting channel 51, the liquid outlet 52 is suitable to descend along the lifting channel 51, so that the cleaning nozzle enters the material guide groove 2 to perform cleaning.

[0030] The atomizing cleaning mechanism 5 has multiple states, when the liquid outlet 52 ascends to the top of the material guide groove 2, the liquid outlet 52 can spray water mist downward to help the dust in the airflow to be agglomerated at the damping dust suppression mechanism 4, when the liquid outlet 52 descends to the middle of the material guide groove 2, the liquid outlet 52 can spray water flow to all directions to help the damping dust suppression mechanism 4 to be cleaned, such a design can not only improve the dust suppression effect, but also solve the problem that the traditional damping dust suppression mechanism 4 needs to be disassembled for cleaning and maintenance, which leads to inconvenient use, the dust suppression device can be cleaned automatically, and the cleaning efficiency is higher, the agglomerated dust can be washed off to the feeding belt 1 and then out of the material guide groove 2.

[0031] In some embodiments, the cross-sectional shape of the cleaning nozzle is the same as the cross-sectional shape of the lifting channel 51, which ensures that the inner wall of the lifting channel 51 can block the circumferential side of the cleaning nozzle, ensures that when the liquid outlet 52 ascends to the top of the material guide groove 2, the water flow cannot be sprayed into the material guide groove 2, and at the same time, the sealing performance of the lifting channel 51 is improved, and the overflow of the dust in the material guide groove 2 is reduced.

[0032] As Figure 4 In the shown embodiment, the upper part of the cleaning nozzle is hemispherical, and a plurality of spray openings are uniformly arranged on the upper surface of the cleaning nozzle, the upper part of the cleaning nozzle is designed as a hemisphere, which can make the water flow of the upper part of the cleaning nozzle be diffusedly sprayed, reduce the cleaning dead angle, and improve the cleaning effect of the damping dust suppression mechanism 4, and the water flow can flow down under the action of gravity at the damping dust suppression mechanism 4, taking the dust and dust blocks on the damping dust suppression mechanism 4 down, thereby further improving the cleaning effect.

[0033] In some embodiments, a closing block is arranged in the lifting channel 51, the lower part of the closing block is shaped to match the upper part of the cleaning spray head, the closing block is adapted to match the spray port of the upper part of the cleaning spray head, and the closing block can both close the spray port of the upper part of the cleaning spray head and limit the position, when the cleaning spray head and the closing block are in contact, the liquid outlet 52 cannot continue to rise, at this time the atomizing cleaning mechanism 5 is necessarily in the atomizing state, and a sensor is not needed to sense the liquid outlet 52, the structure is simpler, and the control is more convenient.

[0034] As shown in the embodiments shown in Figure 5 and 6 , the damping dust suppression mechanism 4 comprises a lifting controller 41, a mounting frame 42 and a damping assembly 43, the lifting controller 41 is connected with the mounting frame 42, the lifting controller 41 is adapted to make the mounting frame 42 rise or fall, a plurality of connecting rods 421 are arranged on the mounting frame 42, the connecting rods 421 are arranged along the width direction of the feeding belt 1, the damping assembly 43 is adapted to be rotationally connected with the connecting rods 421 one by one, one damping assembly 43 is installed corresponding to one connecting rod 421, one damping dust suppression mechanism 4 can install one or more damping assemblies 43 according to needs, and the damping assembly 43 is adapted to swing in the conveying direction of the conveying side 11 of the feeding belt 1. The swingable design of the damping assembly 43 can effectively buffer the airflow, so as to avoid strong impact of the airflow on the damping assembly 43 and cause the airflow to be turbulent.

[0035] As shown in Figures 1 to 4 , in the present application, two damping dust suppression mechanisms 4 are generally arranged as a group, and when each damping dust suppression mechanism 4 is provided with only one damping assembly 43, the two damping dust suppression mechanisms 4 can also have a multi-layer suppression effect by cooperating with each other.

[0036] In some embodiments, the lifting controller 41 can use a pneumatic cylinder or a motor.

[0037] In some embodiments, the mounting frame 42 and the guide chute 2 are designed in a split type, the lifting controller 41 is arranged on the upper part of the mounting frame 42, and the mounting frame 42 can be separated from the guide chute 2 to maintain and replace the damping assembly 43.

[0038] As shown in the embodiments shown in Figure 5 and 6 , the damping assembly 43 comprises a clamp 431 and a damping curtain 432, the top of the damping curtain 432 is provided with a connecting part 4321, the clamp 431 is adapted to be connected and fixed with the connecting part 4321 of one or more layers of the damping curtain 432, and the mounting degree of freedom is high, so that different layers of the damping curtain 432 can be selected and installed according to needs.

[0039] In the present application, the connecting portion 4321 and the connecting rod 421 are parallel to each other, and the damping curtain 432 can be arranged in a longitudinal section perpendicular to the surface of the feeding belt 1. The more the number of the damping curtains 432, the stronger the blocking effect on the airflow, and the better the dust suppression effect.

[0040] Specifically, the clamp 431 and the connecting portion 4321 are provided with connecting holes, and one or more connecting portions 4321 inserted into the clamp 431 can be fastened with the clamp 431 by using general threaded fasteners.

[0041] As shown in the embodiments of Figure 5 and 6 , the damping curtain 432 includes a plurality of damping strips 4322 connected below the connecting portion 4321. The damping strips 4322 are distributed at equal intervals along the length direction of the connecting portion 4321. The gaps between the damping strips 4322 allow the airflow to pass through and block the dust.

[0042] In some embodiments, the damping strips 4322 are made of high molecular materials.

[0043] As shown in the embodiments of Figure 1 , the material guide groove 2 is provided with a primary circulation device 6 arranged in front of the damping dust suppression mechanism 4. The primary circulation device 6 is adapted to form a primary circulation air duct 61 above the material guide groove 2. The primary circulation air duct 61 is formed with a flow separation section 611 perpendicular to the material guide groove 2 at the end connected to the feeding device 3. The cross section of the flow separation section 611 expands from top to bottom. The airflow generated by the falling material and containing dust will be blocked by the damping dust suppression mechanism 4 and rebound. The airflow changes direction due to the change in space, and most of the rebound enters the flow separation section 611 and then flows out from the end of the primary circulation air duct 61 close to the feeding device 3 to realize air return. Due to the difference in positive and negative pressure during the air return process, the airflow can continuously circulate at the primary circulation device 6, and the pressure is slowed down to a certain extent. The remaining airflow containing dust continues to flow to the damping dust suppression mechanism 4, and the air volume gradually decreases after being blocked by the damping dust suppression mechanism 4, and a large amount of dust is attached and coagulated into blocks. When the dust coagulation reaches a certain thickness, under the interaction between the feeding belt 1 and the damping dust suppression mechanism 4, the dust blocks can fall off under the action of gravity and external force, and be carried away by the feeding belt 1 along with the material. The expansion design of the flow separation section 611 can better receive the rebounding airflow, allowing more airflow to enter the circulation and further relieving the pressure.

[0044] As shown in the embodiments of Figures 1 to 4In the shown embodiment, the material guide groove 2 is provided with a secondary circulation device 7, which is arranged in front of the damping dust suppression mechanism 4 and forms a secondary circulation air duct 71 above the material guide groove 2. The secondary circulation air duct 71 is shaped like an inverted V, and an atomizer 72 is arranged on the material guide groove 2 between the two ends of the secondary circulation air duct 71. The principle of the secondary circulation device 7 is similar to that of the primary circulation device 6, but the secondary circulation device 7 is designed as a structure with stronger pressure relief effect, which greatly slows down the flow of the airflow, and by adding the atomizer 72, the carrying of dust in the airflow is greatly weakened, thereby ensuring that the kinetic energy of the airflow can be consumed at the subsequent damping dust suppression mechanism 4, reducing or even eliminating the airflow from the end of the material guide groove 2.

[0045] As Figures 1 to 3 shown in the embodiment, the secondary circulation device 7 is located on the side of the primary circulation device 6 away from the feeding device 3, and cooperates with the damping dust suppression mechanism 4 through different wind control and pressure relief mechanisms and performance of the primary circulation device 6 and the secondary circulation device 7, which can effectively suppress the airflow containing dust in sequence, so that the airflow pressure is gradually reduced, and the content of dust is also gradually reduced.

[0046] The above describes the basic principles, main features and advantages of the present application. It should be understood by those skilled in the art that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, which fall within the scope of the claimed present application. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A dust suppression device for a feed trough, characterized in that: The dust suppression device is arranged on the guide chute above the feeding belt, and comprises a damping dust suppression mechanism and an atomizing cleaning mechanism.

2. A material guiding chute dust suppression device as claimed in claim 1, characterized in that: The cross-sectional shape of the cleaning nozzle is the same as that of the lifting channel.

3. A material guiding chute dust suppression apparatus as claimed in claim 2, wherein: The upper part of the cleaning nozzle is semispherical, and a plurality of nozzles are uniformly arranged on the surface of the upper part of the cleaning nozzle.

4. A material chute dust control device as defined in claim 1, wherein: The damping dust suppression mechanism comprises a lifting controller, a mounting frame and a damping assembly.

5. A material guiding chute dust suppression apparatus as claimed in claim 4, wherein: The damping assembly comprises a clamp and a damping curtain.

6. A material guiding chute dust suppression apparatus as claimed in claim 5, wherein: The damping curtain comprises a plurality of damping strips.

7. A material chute dust control device as defined in claim 1 wherein: A primary circulation device is arranged on the guide chute.

8. A material guiding chute dust suppression apparatus as claimed in claim 7, characterized in that: A secondary circulation device is arranged on the guide chute.

9. A material guiding chute dust suppression device as claimed in claim 8, characterized in that: The primary circulation device and the secondary circulation device are arranged in sequence along the feeding direction of the feeding belt.

Images