A full-closed dust collector for a belt conveyor single dust removal point

Abstract

The utility model provides a kind of for belt conveyor single dust removal point full-closed dust collector, it is related to air purification equipment field, including the dust removal unit of installation in belt conveyor conveying starting point and conveying terminal point, dust removal unit has backflush system;It further includes louvre valve that is combined with dust removal unit to make the internal space of dust removal unit closed or exposed, louvre valve is opposite belt conveyor, for backflush system work, through louvre valve, the internal space of dust removal unit is exposed, so that dust falling on the surface of louvre valve falls into belt conveyor.

Description

Technical Field

[0001] This utility model relates to the field of air purification equipment, and in particular to a fully enclosed dust collector for a single dust removal point of a belt conveyor. Background Technology

[0002] Belt conveyors are widely used in industries such as docks, bulk material transportation, metallurgy, mining, and cement for continuous material transport. During actual operation, there is a significant height difference between the material falling from the tail receiving point and the material being thrown from the head unloading point. During this high-speed descent, the material carries a large amount of airflow and impacts enclosed spaces or the inside of the feed chute, causing a momentary increase in local air pressure (i.e., a pressurization effect). This violent airflow disturbance easily causes the transported fine material particles (especially industrial dust) to be lifted and dispersed into the working environment. In existing technologies, if the workplace fails to implement sufficient and effective dust control measures or if existing measures are inadequate, the dust concentration in the work area will remain at a consistently high level. Long-term exposure to this high dust concentration environment will seriously threaten the respiratory health of workers, significantly increasing their risk of developing occupational lung diseases such as pneumoconiosis. Therefore, in response to the dust pollution problem generated at the unloading point of belt conveyors, it is urgent to develop and apply more efficient and reliable dust removal system technologies to effectively reduce the dust concentration in the work area, thereby ensuring the occupational health and safety of workers and preventing occupational diseases. Utility Model Content

[0003] The purpose of this invention is to provide a fully enclosed dust collector for a single dust removal point on a belt conveyor, so as to solve the above-mentioned technical problems.

[0004] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: A fully enclosed dust collector for a single dust collection point on a belt conveyor includes a dust collection unit installed at the starting point and ending point of the belt conveyor, and the dust collection unit has a back-flushing system; It also includes louvered valves that are combined with dust collectors to close or expose the internal space of the dust collector. The louvered valves face the belt conveyor and are used to expose the internal space of the dust collector after the backflushing system is working, so that the dust falling on the surface of the louvered valves falls into the belt conveyor.

[0005] Preferably, the louvered valve includes a frame installed at the bottom of the dust collector unit, the frame being above the belt conveyor, and a number of valve plates arranged in a linear array inside the frame, wherein the valve plates are rotatable within the frame, and the valve plates can fit end to end with adjacent valve plates in their rotation path, thereby sealing the internal space of the dust collector unit.

[0006] Preferably, the adjacent valve plates are staggered during the subsequent rotation after they are joined end to end, so that the internal space of the dust removal unit is exposed to the outside.

[0007] Preferably, the valve plate rotates synchronously within the frame.

[0008] Preferably, the dust removal unit includes a casing with an air inlet and an air outlet. A filter element is installed inside the casing, and a blow-through pipe connected to the filter element is also included. The blow-through pipe is equipped with an air storage tank. Dust-laden air entering through the air inlet passes through the filter element and is discharged from the air outlet.

[0009] Preferably, the air storage tank and the jetting pipes constitute a backflushing system, which delivers compressed air into the filter element, causing the dust on the surface of the filter element to fall into the valve plate.

[0010] Preferably, the dust falls into the belt conveyor after the valve plate rotates at an angle less than the dust's angle of repose.

[0011] The beneficial effects of this utility model are: 1. A stable negative pressure is established within the casing by a fan, actively drawing dust-laden air (airflow carrying dust) generated at the unloading point into the dust collector through the inlet. Multiple filter elements efficiently filter the incoming dust-laden air, capturing fine dust particles (including industrial dust). The purified gas is discharged through the outlet, thereby directly and significantly reducing the dust concentration in the working environment and effectively improving workplace air quality.

[0012] 2. The core of this utility model lies in the louvered valve and its linkage mechanism installed at the bottom of the casing. The louvered valve is controlled by multiple rectangular valve plates through a synchronous linkage mechanism, which enables all valve plates to rotate synchronously to open and close. The valve plates fit tightly together to form a continuous closed plane, effectively sealing the bottom of the casing and preventing the escape of untreated dusty air or the leakage of dust inside the dust collector before cleaning. At the same time, it provides a structural basis for establishing negative pressure inside the dust collector. In the open state, the valve plates rotate synchronously and stagger each other to form strip-shaped gaps. The dust accumulated on the surface of the valve plates falls directly through these strip-shaped gaps under the action of gravity, falling in situ and automatically onto the material surface of the belt conveyor below. This design realizes automatic, in-situ, and immediate dust recovery, and the conveyed material is directly transported away, avoiding secondary dust pollution at the work site. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a fully enclosed dust collector for a single dust collection point on a belt conveyor. Figure 2 This is a side view of a louvered valve. Figure 3 for Figure 2 The top view of the louvered valve shown; Figure 4 for Figure 2 The diagram shows the louvered valve when closed. Figure 5 for Figure 2 The diagram shown illustrates the louvered valve when it is open. Reference numerals in the attached drawings: 1. Housing; 2. Air reservoir; 3. Pneumatic nozzle; 4. Filter element; 5. Louvered valve; 501. Frame; 502. Cylinder; 503. Connecting rod; 504. Rocker arm; 505. Shaft seat; 506. Valve plate; 507. Valve plate shaft; 6. Belt conveyor. Detailed Implementation

[0014] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0015] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0016] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0017] Example 1 This embodiment proposes a fully enclosed dust collector for a single dust collection point on a belt conveyor. Please refer to [link / reference]. Figures 1-5 The fully enclosed dust collector for a single dust collection point on a belt conveyor includes dust collection units installed at the starting and ending points of the belt conveyor 6. The dust collection unit includes a housing 1, and the housing 1 is equipped with a dust collection unit located at... Figure 1 The air intake at point B and the location Figure 1 The fan outlet is located at point A. Multiple filter elements 4 and a blower nozzle 3 connecting to the air reservoir 2 are installed inside the casing 1. A louvered valve 5 covering the belt conveyor 6 is installed at the bottom of the casing 1. In this embodiment, when the fan starts, a negative pressure is created inside the casing 1. Dust-laden air is drawn in through the inlet and filtered through the filter elements 4. The purified air is then discharged through the outlet. When the filter elements 4 are saturated, the back-flushing system delivers compressed air to the blower nozzle 3 through the air reservoir 2. The high-pressure airflow is sprayed in the opposite direction into the inner cavity of the filter elements 4, causing the dust adhering to the surface of the filter elements 4 to peel off and fall onto the surface of the louvered valve 5.

[0018] Please see Figures 2-5The louvered valve 5 includes a frame 501 fixed to the bottom of the housing 1 and suspended above the belt conveyor 6. Several rectangular valve plates 506 are arranged in a linear array along the length of the frame 501. Pairs of shaft seats 505 with coincident axes are fixed to opposite end plates of the frame 501. The ends of each valve plate 506 are rotatably supported by valve plate shafts 507 passing through the shaft seats 505. All valve plates 506 are driven by a synchronous linkage mechanism. Specifically, the synchronous linkage mechanism includes a cylinder 502, the end of which is connected to... Figure 2 The connecting rod 503 connects all valve plate shafts 507 on the same side to their corresponding rocker arms 504. The free ends of each rocker arm 504 are hinged to the connecting rod 503 via pins. When the cylinder 502 extends or retracts, the connecting rod 503 drives all rocker arms 504 to swing synchronously, thereby driving all valve plate shafts 507 to rotate at the same angle, ensuring that all valve plates 506 open and close synchronously within the frame 501. The rotational movement of each valve plate 506 achieves tight contact between the first and last edges of adjacent valve plates 506 (e.g., ...). Figure 4 As shown), forming a continuous closed plane to seal the bottom of the housing 1. Alternatively, by rotating in the opposite direction, adjacent valve plates 506 can be staggered to form a strip-shaped gap (as shown). Figure 5 As shown in the figure, the internal space of the housing 1 is connected to the belt conveyor 6. In this embodiment, during dust cleaning, the cylinder 502 drives the valve plate 506 to rotate to the open state, and the dust accumulated on the surface of the valve plate 506 falls directly into the belt conveyor 6 below through the strip gap and is transported away, realizing in-situ dust recovery.

[0019] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0020] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A fully enclosed dust collector for a single dust collection point on a belt conveyor, comprising dust collection units installed at the starting and ending points of the belt conveyor, the dust collection units having a back-flushing system, characterized in that: It also includes louvered valves that are combined with dust collectors to close or expose the internal space of the dust collector. The louvered valves face the belt conveyor and are used to expose the internal space of the dust collector after the backflushing system is working, so that the dust falling on the surface of the louvered valves falls into the belt conveyor.

2. A fully enclosed dust collector for a single dust collection point on a belt conveyor according to claim 1, characterized in that: The louvered valve includes a frame installed at the bottom of the dust collector unit, which is above the belt conveyor. Inside the frame, there are several valve plates arranged in a straight line. The valve plates can rotate within the frame and can fit end to end with adjacent valve plates in their rotation path, thus sealing the internal space of the dust collector unit.

3. A fully enclosed dust collector for a single dust collection point on a belt conveyor according to claim 2, characterized in that: During the subsequent rotation after the adjacent valve plates are joined together, they are staggered, exposing the internal space of the dust removal unit to the outside.

4. A fully enclosed dust collector for a single dust collection point on a belt conveyor according to claim 2 or 3, characterized in that: The valve plate rotates synchronously within the frame.

5. A fully enclosed dust collector for a single dust collection point on a belt conveyor according to claim 3, characterized in that: The dust collector unit includes a casing with an air inlet and an air outlet. Inside the casing, a filter element is installed, and a blower pipe is connected to the filter element. The blower pipe is equipped with an air storage tank. Dust-laden air entering through the air inlet passes through the filter element and is discharged from the air outlet.

6. A fully enclosed dust collector for a single dust collection point on a belt conveyor according to claim 5, characterized in that: The air reservoir and the jetting pipes constitute the backflushing system, which delivers compressed air into the filter element, causing the dust on the surface of the filter element to fall into the valve plate.

7. A fully enclosed dust collector for a single dust collection point on a belt conveyor according to claim 6, characterized in that: When the valve plate rotates to a angle less than the dust's angle of repose, the dust falls into the belt conveyor.

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