Dust removal device by spraying

Abstract

The utility model provides a kind of spray dust removal device, spray dust removal device includes: support frame, support frame is fixedly arranged on the rack of belt conveyor;Spray part, spray part is fixedly arranged on support frame, spray part has spray head, spray head is set towards the upper layer belt of belt conveyor;Trigger part, set on spray part, trigger part includes baffle, baffle has relatively arranged trigger position and closed position, when baffle is in trigger position, baffle can open spray head;When baffle is in closed position, baffle can close spray head, baffle is set corresponding upper layer belt, when material passes through baffle, material can make baffle switch from closed position to trigger position. The technical scheme of the application can solve the problem of high dust removal cost in the existing technology when transporting coal in the coal mine inlet and return air adit.

Description

Technical Field

[0001] This utility model relates to the field of dust removal equipment technology, and more specifically, to a spray dust removal device. Background Technology

[0002] The prevention and control of coal dust in mines is an important aspect of safe production in the coal industry. Coal dust not only poses an explosion hazard, significantly threatening mine safety, but also harms human health. Furthermore, accumulated coal dust can cause fires, accelerate mechanical wear and tear, shorten the lifespan of precision instruments, and damage electrical equipment, leading to short circuits, grounding faults, and other malfunctions that severely impact normal mine production.

[0003] Existing dust control methods in coal mines typically involve installing spray devices at various transfer points and large water curtains to purify the airflow in the intake and return airways to control coal dust levels. However, traditional large water curtains for purifying the airflow in intake and return airways are usually suspended on the roof of the roadway, relatively far from the conveyor belt. When the conveyor belt is heavily loaded with coal, the airflow in the intake airway has already blown the coal dust up and spread it across the entire cross-section of the roadway. Only at this point does the large water curtain covering the entire cross-section of the roadway begin to extinguish the dust, resulting in a large water consumption, complex structure, and high installation costs. Utility Model Content

[0004] This invention provides a spray dust removal device to solve the problem of high dust removal costs in the coal mine intake and return air roadways during coal transportation in the prior art.

[0005] This utility model provides a spray dust suppression device, which includes: a support frame, fixedly mounted on the frame of a belt conveyor; a spray element, fixedly mounted on the support frame, the spray element having a nozzle facing the upper belt of the belt conveyor; and a trigger element, mounted on the spray element, the trigger element including a baffle plate having a trigger position and a closed position respectively. When the baffle plate is in the trigger position, it can open the nozzle; when the baffle plate is in the closed position, it can close the nozzle. The baffle plate is positioned corresponding to the upper belt, and when material passes over the baffle plate, the material can cause the baffle plate to switch from the closed position to the trigger position.

[0006] Furthermore, the support frame extends along the height direction, and the spraying component is located on the side of the support frame away from the upper belt. The spraying component includes a trigger for controlling the spray nozzle. The baffle has a connecting edge and a free edge that are arranged opposite to each other. The connecting edge is fixedly connected to the trigger, and the free edge is arranged towards the upper belt.

[0007] Furthermore, the baffle is made of a flexible material, and the connecting edge is spaced from the upper belt in the height direction.

[0008] Furthermore, the baffle has an arc-shaped structure in the height direction, with the center of the arc-shaped structure facing downstream of the belt conveyor.

[0009] Furthermore, the distance from the free edge to the upper belt is between 80mm and 100mm.

[0010] Furthermore, the trigger also includes an elastic element, which is disposed between the support frame and the baffle. The elastic element is used to provide the baffle with an elastic force to switch from the trigger position to the closed position.

[0011] Furthermore, a baffle, a trigger, and a nozzle form a spray group, and multiple spray groups are provided, which are spaced apart along the width direction of the belt conveyor.

[0012] Furthermore, multiple spray groups are spaced apart along the transport direction of the belt conveyor.

[0013] Furthermore, the support frame includes a telescopic rod, one end of which is fixedly connected to the belt conveyor, and the other end of which is equipped with a spray element.

[0014] Furthermore, the spray dust suppression device also includes two baffles, which are positioned on both sides of the belt conveyor opposite the spray components.

[0015] The present invention provides a spray dust suppression device comprising a support frame and spray components. The spray components are mounted on a belt conveyor via the support frame. A baffle is installed so that when coal gangue from the upper belt passes the baffle, it causes the baffle to switch from a closed position to a triggered position. At this point, the baffle opens the nozzles, allowing them to spray water onto the upper belt. This spraying prevents coal dust from spreading due to wind, thus reducing water consumption and improving dust suppression efficiency compared to traditional large-volume water curtain spray systems. Furthermore, unlike traditional methods that use sound and light sensors for triggering, which can lead to accidental activation and inconvenience to pedestrians or equipment, this invention simplifies the structure of the spray dust suppression device by using a physical trigger, reducing manufacturing costs and facilitating maintenance and repair. It also effectively wets the dust, promoting dust accumulation and settling. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0017] Figure 1 A schematic diagram of the structure of the spray dust removal device provided by this utility model is shown.

[0018] The above figures include the following reference numerals:

[0019] 01. Upper belt;

[0020] 100. Support frame; 110. Telescopic pole;

[0021] 200. Sprayer component; 210. Sprayer head; 220. Trigger;

[0022] 300, baffle. Detailed Implementation

[0023] 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. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0024] like Figure 1 As shown, this utility model embodiment provides a spray dust removal device, which includes a support frame 100 and a spray element 200. The support frame 100 is fixedly mounted on the frame of a belt conveyor, and the spray element 200 is fixedly mounted on the support frame 100. The spray element 200 has a nozzle 210, which faces the upper belt 01 of the belt conveyor. A trigger element is provided on the spray element 200, including a baffle 300. The baffle 300 has a trigger position and a closed position. When the baffle 300 is in the trigger position, it can open the nozzle 210; when the baffle 300 is in the closed position, it can close the nozzle 210. The baffle 300 is positioned corresponding to the upper belt 01. When material passes over the baffle 300, the material can cause the baffle 300 to switch from the closed position to the trigger position.

[0025] The present invention provides a spray dust suppression device comprising a support frame 100 and a spray element 200. The spray element 200 is mounted on a belt conveyor via the support frame 100. A baffle 300 is provided. When coal gangue on the upper belt 01 passes the baffle 300, it causes the baffle 300 to switch from a closed position to a triggered position. At this time, the baffle 300 can open the nozzle 210, allowing it to spray water onto the upper belt 01. This spraying prevents coal dust from spreading due to wind, thus reducing water consumption and improving dust suppression efficiency compared to traditional large-volume water curtain spray systems. Furthermore, compared to traditional methods using sound and light sensors for triggering, which can lead to accidental activation and inconvenience to pedestrians or equipment, the present invention simplifies the structure of the spray dust suppression device by using a physical trigger, reducing manufacturing costs and facilitating maintenance and repair. It also specifically wets the dust, achieving dust accumulation and settling.

[0026] Specifically, the support frame 100 extends along the height direction, and the spray element 200 is located on the side of the support frame 100 away from the upper belt 01. The spray element 200 includes a trigger 220, which controls the spray nozzle 210 to spray. The baffle 300 has a connecting edge and a free edge that are arranged opposite to each other. The connecting edge is fixedly connected to the trigger 220, and the free edge is set towards the upper belt 01. With this configuration, when coal gangue passes the free edge, the coal gangue can push up the free edge, causing the connecting edge to drive the trigger 220 to trigger the spray nozzle 210 to spray. After the coal gangue passes the baffle 300, the free edge can fall freely, causing the trigger 220 to close. At this time, the baffle 300 switches from the triggered position to the closed position, realizing the automatic shutdown of the automatic spray device, reducing water waste and dust removal costs.

[0027] In some embodiments of this application, the baffle 300 has an arc-shaped structure in the height direction, with the center of the arc facing downstream of the belt conveyor. This configuration places the center of gravity of the baffle 300 upstream of the belt conveyor, facilitating its free fall after it switches to the trigger position and allowing it to switch to the closed position more smoothly.

[0028] Furthermore, the baffle 300 is made of a flexible material and can undergo a certain degree of flexible deformation, so that the baffle 300 can adapt to the floating of the upper belt 01 and adapt to transportation conditions with different loads.

[0029] Specifically, the connecting edge and the upper conveyor belt 01 are spaced apart in the height direction. This arrangement allows the coal gangue, in the early or late stages of transportation when its diameter is small and dust removal is unnecessary, to pass directly through the baffle 300 without triggering the nozzle 210, thus preventing water waste.

[0030] Specifically, in this application, the distance from the free edge to the upper conveyor belt 01 is between 80mm and 100mm. When the distance is less than 80mm, this gap is too small and cannot effectively filter the influence of small-diameter coal gangue on the baffle 300; small-diameter coal gangue can still easily disturb the baffle 300. When the distance is greater than 100mm, this gap is too large and cannot guarantee the triggering sensitivity of the baffle 300. In this application, by setting the distance from the free edge to the upper conveyor belt 01 to between 80mm and 100mm, it can be ensured that the baffle 300 will not miss large-diameter coal gangue, nor will it be disturbed by small-diameter coal gangue. Specifically, the distance from the free edge to the upper conveyor belt 01 can be set to 80mm, 90mm, or 100mm.

[0031] In some embodiments of this application, the trigger also includes an elastic element, which is disposed between the support frame 100 and the baffle 300. The elastic element is used to provide the baffle 300 with an elastic force to switch from the trigger position to the closed position. This arrangement can cause the baffle 300 to switch positions through the elastic element, prevent the baffle 300 from getting stuck, and ensure the smooth switching of the baffle 300.

[0032] Specifically, the elastic element can be a spring or a torsion spring.

[0033] Specifically, the nozzle 210 in this application is connected to a high-pressure water source, and the high-pressure water source is in a normally open state.

[0034] In this application, a baffle 300, a trigger 220, and a nozzle 210 form a spray group. Multiple spray groups are arranged at intervals along the width direction of the belt conveyor. This arrangement can accommodate irregularly arranged coal gangue along the width direction of the belt conveyor, allowing for targeted spraying by setting up spray groups, thereby reducing water consumption.

[0035] Furthermore, multiple spray groups are spaced apart along the conveyor belt direction, meaning that multiple spray groups can simultaneously spray dust onto multiple areas of coal gangue along the length. The spray from the same spray group can spread across the width, expanding the spray range and reducing water consumption. Simultaneously, the coal gangue can be sprayed in small, frequent applications, further enhancing the dust removal effect.

[0036] In some embodiments of this application, the support frame 100 includes a telescopic rod 110, one end of which is fixedly connected to a belt conveyor, and the other end of which is provided with a spray element 200. This configuration allows the height of the nozzle 210 to be adjusted via the telescopic rod 110, thereby adjusting the spray range of the nozzle 210. Furthermore, it allows the baffle 300 to adapt to different diameter coal gangue production conditions, improving the applicability of the spray dust removal device.

[0037] Furthermore, the spray dust removal device also includes two baffles, which are set on both sides of the belt conveyor opposite to the spray component 200. By setting the baffles, the coal gangue can be prevented from falling off the sides of the belt conveyor due to the obstruction of the baffle plate 300, thus ensuring transportation efficiency and effect.

[0038] Compared with traditional large water curtains for purifying airflow at transfer points and inlet / outlet air ducts, the spray dust suppression device of this application can achieve fully automatic control, eliminating the need for dedicated personnel to open and close valves. This reduces unnecessary water waste due to human error, lowers labor costs, and improves dust suppression efficiency. Moreover, compared with light-controlled and sound-controlled large water curtains, it can achieve automatic control, facilitating manufacturing, maintenance, and restoration. Furthermore, this new heavy-duty dust suppression device does not require electrical power; it only needs a belt starter to operate, eliminating the need for additional energy and reducing production costs.

[0039] At the Huangbaici Coal Mine of Shenhua Wuhai Energy Company, a longwall retreat fully mechanized mining method is used in the goaf-retention roadway working face, with the goaf filled by the caving method. Since the working face was put into production, excessive coal dust has become the main problem restricting safe production. Although traditional dust suppression methods are used during production, coal dust in the transport roadway still exceeds the standard during normal production, with the dust content in the roadway air reaching 21 g / m³. 3 ~26g / m 3 between.

[0040] The spray dust suppression device provided in this application was applied to the goaf-side roadway working face of the Huangbaici Coal Mine of Shenhua Wuhai Energy Company. One set of spray dust suppression devices was installed every 100m along the conveyor belt of the transport roadway, for a total of 8 sets of heavy-duty spray dust suppression devices. After use, the dust content in the roadway air was reduced to 7g / m³. 3 ~10g / m 3 The dust reduction effect is very obvious, providing a good working environment for on-site workers and ensuring safe production.

[0041] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0042] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0043] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0044] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0045] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0046] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A spray dust suppression device, characterized in that, The spray dust removal device includes: A support frame (100) is fixedly mounted on the frame of the belt conveyor; A spraying component (200) is fixedly mounted on the support frame (100). The spraying component (200) has a nozzle (210) which is positioned toward the upper belt (01) of the belt conveyor. A trigger is provided on the spraying component (200). The trigger includes a baffle (300) with a trigger position and a closed position. When the baffle (300) is in the trigger position, the baffle (300) can open the nozzle (210); when the baffle (300) is in the closed position, the baffle (300) can close the nozzle (210). The baffle (300) is provided corresponding to the upper belt (01). When material passes through the baffle (300), the material can cause the baffle (300) to switch from the closed position to the trigger position. The trigger also includes an elastic element disposed between the support frame (100) and the baffle (300), the elastic element being used to provide the baffle (300) with an elastic force to switch from the trigger position to the closed position.

2. The spray dust removal device according to claim 1, characterized in that, The support frame (100) extends along the height direction, and the spray element (200) is disposed on the side of the support frame (100) away from the upper belt (01). The spray element (200) includes a trigger (220) for controlling the spray nozzle (210) to spray. The baffle (300) has a connecting edge and a free edge disposed opposite to each other. The connecting edge is fixedly connected to the trigger (220), and the free edge is disposed toward the upper belt (01).

3. The spray dust removal device according to claim 2, characterized in that, The baffle (300) is made of a flexible material and the connecting edge is spaced apart from the upper belt (01) in the height direction.

4. The spray dust removal device according to claim 3, characterized in that, The baffle (300) has an arc-shaped structure in the height direction, and the center of the arc-shaped structure is set towards the downstream of the belt conveyor.

5. The spray dust removal device according to claim 3, characterized in that, The distance from the free edge to the upper belt (01) is between 80mm and 100mm.

6. The spray dust removal device according to claim 2, characterized in that, A baffle (300), a trigger (220) and a nozzle (210) form a spray group, and multiple spray groups are provided, which are spaced apart along the width direction of the belt conveyor.

7. The spray dust removal device according to claim 6, characterized in that, Multiple spray groups are spaced apart along the transport direction of the belt conveyor.

8. The spray dust removal device according to claim 1, characterized in that, The support frame (100) includes a telescopic rod (110), one end of which is fixedly connected to the belt conveyor, and the other end of which is provided with the spray element (200).

9. The spray dust removal device according to claim 1, characterized in that, The spray dust removal device also includes two stop plates, which are arranged on both sides of the belt conveyor opposite to the spray element (200).

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