Gravel material processing dust falling device

By combining the design of the frame components and the spraying system, the problem of incomplete dust suppression in sand and gravel processing was solved, achieving all-round coverage and flexible adaptive adjustment, thus improving the dust suppression effect.

CN223980289UActive Publication Date: 2026-03-10SINOHYDRO BUREAU 14 CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-22
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

Existing technologies cannot provide comprehensive coverage of the sand and gravel processing area, resulting in poor dust reduction and an inability to adapt to different equipment sizes.

Method used

A dust suppression device was designed, comprising a vertical frame assembly, a horizontal spray assembly, and a water pump. Through a frame structure composed of columns and connecting rods, combined with a lifting mechanism and hinges, it achieves all-round coverage of sand and gravel processing equipment and effectively suppresses dust by spraying water mist through atomizing nozzles, adapting to different equipment sizes and dust heights.

Benefits of technology

It achieves comprehensive coverage of the sand and gravel processing area, improves dust suppression, enhances the flexibility and adaptability of the equipment, and can adjust the spraying angle and height according to the equipment to effectively control dust diffusion.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a dust falling device for sand-gravel material processing. The sand-gravel material processing dust fall device comprises a vertical frame assembly, a transverse frame spraying assembly arranged on the vertical frame assembly and a water suction pump communicated with the transverse frame spraying assembly, the vertical frame assembly is arranged on the outer side of sand-gravel material processing equipment in a crossing mode, and the transverse frame spraying assembly is located on the upper side of the sand-gravel material processing equipment; the vertical frame assembly comprises stand column sets, connecting rods are connected between the stand column sets, each stand column set comprises two stand columns which are oppositely arranged, bases are arranged at the bottoms of the stand columns, lifting mechanisms are arranged on the upper portions of the stand columns, connecting pieces are arranged on the lifting mechanisms, and the transverse frame spraying assembly is connected with the connecting pieces through hinge pieces. Dust diffusion can be effectively controlled, rapid adjustment and installation can be conducted according to different machining areas and equipment sizes, and the dust falling effect is improved.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of dust reduction devices, in particular to a sandstone processing dust reduction device. BACKGROUND

[0002] In pumped storage power stations, sandstone processing mainly serves the construction needs of the power station. The sandstone processing system is responsible for producing sand and gravel aggregates required for reservoir filling materials (such as cushion material, filter material and special cushion material), normal concrete, shotcrete, asphalt concrete, etc. These materials are the basis of the main project and main temporary project of the power station, and are crucial to ensuring the quality and progress of the project. Sandstone processing needs to be carried out according to the aggregate gradation requirements of the project. For example, some projects require sandstone of a specific particle size to meet the performance standards of concrete or other building materials.

[0003] Dust is generated during sandstone processing. This is because a certain amount of dust is generated during the mining, crushing, screening and transportation of sandstone. These dusts can affect the health of workers and the environment. In order to reduce dust pollution, the sandstone processing in the prior art generally takes the following measures: using water during processing to reduce dust generation and dispersion; sealing the dust generating link and removing the dust through a negative pressure system to prevent it from spreading into the air; installing and using dust removal equipment such as bag dust collectors, cyclone dust collectors, etc. to filter and collect dust, etc.

[0004] Although the wet method used in the prior art during sandstone processing can effectively reduce dust, there are still the following technical problems:

[0005] 1. It is difficult to cover the sandstone processing area comprehensively, which can cause poor dust reduction effect;

[0006] 2. It is difficult to adapt to the dust height of sandstone processing equipment, which can cause poor dust reduction effect. CONTENT OF THE INVENTION

[0007] To solve or partially solve the problems in the related art, the present application provides a sandstone processing dust reduction device, which can effectively control the dispersion of dust and can be quickly adjusted and installed according to different processing areas and equipment sizes, thereby improving the dust reduction effect.

[0008] The present application provides a sandstone processing dust reduction device, which comprises a vertical frame assembly 1, a horizontal frame spraying assembly 2 arranged on the vertical frame assembly 1, and a water pump 3 connected to the horizontal frame spraying assembly 2, wherein the vertical frame assembly 1 is arranged on the outside of the sandstone processing equipment, and the horizontal frame spraying assembly 2 is arranged on the upper side of the sandstone processing equipment.

[0009] The stand assembly 1 comprises a column group 4, connecting rods 22 are connected between the column group 4, the column group 4 comprises two oppositely arranged columns 6, the bottom of the column 6 is provided with a base 5, the upper part of the column 6 is provided with a lifting mechanism 11, the connecting piece 12 is arranged on the lifting mechanism 11, and the horizontal frame spraying assembly 2 is connected with the connecting piece 12 through the hinge piece.

[0010] Optionally, in some schemes, the horizontal frame spraying assembly 2 comprises a main hollow rod 7 connected with each side column 6 in the adjacent column group 4, a branch hollow rod 8 in communication with the two oppositely arranged main hollow rods 7, the branch hollow rod 8 is uniformly provided with an atomizing nozzle 9, and the water pump 3 is in communication with the main hollow rod 7.

[0011] Optionally, in some schemes, the atomizing nozzle 9 is arranged on both sides of the branch hollow rod 8 along the length direction of the main hollow rod 7 and on one side of the bottom of the branch hollow rod 8.

[0012] Optionally, in some schemes, the bottom of the two ends of the branch hollow rod 8 is provided with an inclined atomizing nozzle 10 inclined to one side of the sandstone processing equipment.

[0013] Optionally, in some schemes, the inclination angle of the inclined atomizing nozzle 10 is 45°-60°.

[0014] Optionally, in some schemes, the upper part of the column 6 is provided with a longitudinal sliding cavity 13 on one side, the lifting mechanism 11 is installed in the longitudinal sliding cavity 13, the longitudinal sliding cavity 13 comprises a bearing 14 arranged on the bottom of the longitudinal sliding cavity 13, a screw rod 15 arranged on the bearing 14, a driving motor 16 arranged on the top of the longitudinal sliding cavity 13, the screw rod 15 passes through the top of the longitudinal sliding cavity 13 and is connected with the driving motor 16, the connecting piece 12 is threadedly connected with the screw rod 15 and is in contact sliding connection with the longitudinal sliding cavity 13.

[0015] Optionally, in some schemes, the hinge piece comprises a U-shaped shaft rod 20 arranged on the connecting piece, and a rotating cylinder 21 in rotating connection with the U-shaped shaft rod 20 and fixedly connected with the end of the main hollow rod 7.

[0016] Optionally, in some schemes, the bottom surface of the base 5 is provided with a grab tooth 17.

[0017] Optionally, in some schemes, the base 5 is provided with a mounting hole 18, and a taper rod 19 penetrating through the mounting hole 18 is arranged for tapering into the ground.

[0018] The technical scheme provided in the application can have the following beneficial effects:

[0019] 1) The sand and gravel processing equipment in the present application can be placed in the vertical column assembly and below the horizontal frame spraying assembly, which can cover the processing area from above, and the horizontal frame spraying assembly can uniformly spray water mist to effectively control the diffusion of dust and improve the dust reduction effect;

[0020] 2) The multiple vertical column groups and connecting rods in the present application provide good structural stability, and the modularization of the vertical column group and the horizontal frame spraying assembly allows the device to be quickly adjusted and installed according to different processing areas and equipment sizes. After the water pump draws in water, it flows through the main hollow rod to the branch hollow rod and sprays water mist through the atomizing nozzle, which not only improves the flexibility and adaptability of the equipment, but also effectively improves the dust reduction effect;

[0021] 3) The atomizing nozzles in the present application are arranged on both sides of the branch hollow rod in the length direction of the main hollow rod and on one side of the bottom of the branch hollow rod. The bottom atomizing nozzle can play a primary dust reduction role, and the water mist sprayed by the atomizing nozzles on both sides can block the dust, achieving the effect of secondary dust reduction;

[0022] 4) The present application sets inclined atomizing nozzles at the bottom of both ends of the branch hollow rod to directly aim at one side of the sand and gravel processing equipment, which can more accurately target the dust source for dust reduction, thereby improving the dust removal efficiency. Combined with other atomizing nozzles, it can effectively prevent dust from escaping from the side;

[0023] 5) The present application limits the inclination angle of the inclined atomizing nozzle to 45°-60°, which is to make the water mist in this angle range effectively contact with the dust to improve the dust reduction efficiency;

[0024] 6) The present application sets a lifting mechanism on the vertical column, and sets a connecting piece on the lifting mechanism to be hingedly connected with the main hollow rod, which is convenient for adaptive adjustment according to the dust height of the sand and gravel processing equipment or the inclination of the equipment, so as to more accurately reduce the dust source. The hinge piece can reduce the influence of equipment vibration or wind force on the horizontal frame spraying assembly or realize synchronous lifting or inclined lifting of both sides;

[0025] 7) The lifting mechanism in the present application drives the connecting piece to lift through the cooperation of the drive motor on one side or both sides and the bearing rotation, and the connecting piece lifts at the same time. The horizontal frame spraying assembly on the same side is convenient for adaptive adjustment according to the dust height of the sand and gravel processing equipment or the inclination of the equipment;

[0026] 8) The present application can select different hinge pieces according to the application scene or the installation of the equipment to ensure that the horizontal frame spraying assembly can only be synchronously lifted on both sides, or can be synchronously lifted on both sides, or can be lifted on any side;

[0027] 9) The present application limits the bottom surface of the base to be provided with a grab tooth, which is to facilitate the stable placement of the base on the ground;

[0028] 10)The base is provided with a mounting hole, and a tapered rod is tapered into the ground through the mounting hole, so that the base is firmly fixed to the ground through the tapered rod.

[0029] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory and are not restrictive of the application. BRIEF DESCRIPTION OF DRAWINGS

[0030] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings in which like reference characters refer to like parts throughout the figures, and wherein:

[0031] Figure 1 is a structural schematic view of the sand and stone processing dust falling device shown in the embodiment of the present application;

[0032] Figure 2 is a structural schematic view of the vertical stand assembly shown in the embodiment of the present application;

[0033] Figure 3 is a structural schematic view of the horizontal frame spraying assembly shown in the embodiment of the present application;

[0034] Figure 4 is a structural schematic view of the lifting mechanism shown in the embodiment of the present application;

[0035] Figure 5 is a structural schematic view of the base shown in the embodiment of the present application;

[0036] Figure 6 is a structural schematic view of the branch hollow rod shown in the embodiment of the present application.

[0037] LIST OF REFERENCE NUMERALS

[0038] 1-vertical stand assembly, 2-horizontal frame spraying assembly, 3-water suction pump, 4-stand column group, 5-base, 6-stand column, 7-main hollow rod, 8-branch hollow rod, 9-atomizing nozzle, 10-inclined atomizing nozzle, 11-lifting mechanism, 12-connection piece, 13-longitudinal sliding cavity, 14-bearing, 15-screw rod, 16-driving motor, 17-gripping tooth, 18-mounting hole, 19-tapered rod, 20-U-shaped shaft rod, 21-rotary cylinder, 22-connection rod. DETAILED DESCRIPTION

[0039] Embodiments of this application will now be described in more detail with reference to the accompanying drawings. While embodiments of this application are shown in the drawings, it should be understood that this application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make this application more thorough and complete, and to fully convey the scope of this application to those skilled in the art.

[0040] It should be understood that although the terms "first," "second," "third," etc., may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0041] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and 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 of this application.

[0042] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0043] To address the aforementioned issues, this application provides a dust suppression device for sand and gravel processing, which can effectively control the spread of dust and can be quickly adjusted and installed according to different processing areas and equipment sizes, thereby improving the dust suppression effect.

[0044] The technical solutions of the embodiments of this application are described in detail below with reference to the accompanying drawings.

[0045] See Figures 1-2The dust suppression device for sand and gravel processing includes a vertical frame assembly 1, a horizontal frame spray assembly 2 installed on the vertical frame assembly 1, and a water pump 3 connected to the horizontal frame spray assembly 2. The vertical frame assembly 1 is installed across the outside of the sand and gravel processing equipment, and the horizontal frame spray assembly 2 is located above the sand and gravel processing equipment.

[0046] The frame assembly 1 includes a column group 4, with connecting rods 22 connecting the column groups 4. The column group 4 includes two columns 6 arranged opposite each other. A base 5 is provided at the bottom of the column 6. A lifting mechanism 11 is provided at the top of the column 6. A connecting piece 12 is provided on the lifting mechanism 11. The horizontal frame spray assembly 2 is connected to the connecting piece 12 through a hinge.

[0047] During operation, the sand and gravel processing equipment is first installed in the designated location. After installation, the upright frame assembly 1 is installed on both sides of the sand and gravel processing equipment. Then, the horizontal frame spray assembly 2 is installed on the upright frame assembly 1, and the horizontal frame spray assembly 2 is connected to the water pump 3 through a pipe. Alternatively, the horizontal frame spray assembly 2 can be installed on the upright frame assembly 1 first, and the water pump 3 can be moved after being connected to the horizontal frame spray assembly 2 through a pipe to cover the sand and gravel processing equipment. When the sand and gravel processing equipment is processing, one opening of the water pump 3 is connected to the water tank, and the water pump 3 is started. Water is then sprayed out as a mist through the horizontal frame spray assembly 2. In this embodiment, the sand and gravel processing equipment can be placed inside the upright frame assembly and below the horizontal frame spray assembly 2, which can cover the processing area from above. The uniform spraying of water mist by the horizontal frame spray assembly 2 can effectively control the spread of dust and improve the dust suppression effect.

[0048] A lifting mechanism 11 is installed on the column 6. A connecting piece 12 is installed on the lifting mechanism 11 and hinged to the horizontal frame spray assembly 2. This facilitates adaptive adjustment according to the dust height or tilt of the sand and gravel processing equipment, so as to more accurately reduce dust from the dust source. The hinge can reduce the impact of equipment vibration or wind on the horizontal frame spray assembly or achieve synchronous lifting or tilting lifting on both sides.

[0049] The connecting rod 22 is fixedly connected to the column assembly 4 or movably connected. When movably connected, a mounting block with a through hole can be set on the connecting part. The column assembly 4 is provided with a threaded hole corresponding to the through hole, and a bolt that mates with the through hole and the threaded hole. Each column assembly 4 includes two columns 6 with bases 5 arranged opposite each other. When installing the frame assembly 1, first install each column assembly 4 in the designated position, and then reinforce it with the connecting rod 22. After installation, install the assembled horizontal frame spray assembly 2 onto the column 6. Finally, connect the water pump 3 to the main hollow rod 7 through a pipe.

[0050] In some implementations, see Figure 3 , 6The horizontal frame spray assembly 2 includes a main hollow rod 7 connected to each side column 6 in the adjacent column group 4, and a branch hollow rod 8 connected to the two oppositely arranged main hollow rods 7. Atomizing nozzles 9 are evenly distributed on the branch hollow rod 8, and the water pump 3 is connected to the main hollow rod 7.

[0051] During operation, the sand and gravel processing equipment is first installed in the designated position. After installation, each set of upright columns 4 is installed in the designated position and then reinforced with connecting rods 22. After installation, the main hollow rod 7 of the assembled horizontal frame spray assembly 2 is installed on the upright column 6. Finally, the water pump 3 is connected to the main hollow rod 7 through a pipeline. The water flows through the main hollow rod 7 to the branch hollow rod 8, and then sprays water through the atomizing nozzles 9 arranged on the branch hollow rod 8. The multiple sets of upright columns 4 and connecting parts provide good structural stability. The modular setting of the upright columns 4 and the horizontal frame spray assembly 2 allows the device to be quickly adjusted and installed according to different processing areas and equipment sizes. After the water pump 3 draws in water, it flows through the main hollow rod 7 to the branch hollow rod 8 and is sprayed out as water mist through the atomizing nozzles 9. This not only improves the flexibility and adaptability of the equipment, but also effectively improves the dust suppression effect.

[0052] In some embodiments, the atomizing nozzle 9 is disposed on both sides of the branch hollow rod 8 along the length direction of the main hollow rod 7 and on one side of the bottom of the branch hollow rod 8.

[0053] During operation, the atomizing nozzles 9 are located on both sides of the branch hollow rods 8 along the length of the main hollow rod 7 and on one side of the bottom of the branch hollow rods 8. The bottom atomizing nozzles 9 play a primary role in dust suppression, while the water mist sprayed from the atomizing nozzles 9 on both sides blocks dust and achieves a secondary dust suppression effect.

[0054] In some embodiments, the bottom ends of the branch hollow rod 8 are provided with inclined atomizing nozzles 10 that are inclined toward the sand and gravel processing equipment; the inclination angle of the inclined atomizing nozzles 10 is 45°-60°.

[0055] During operation, inclined atomizing nozzles 10 are installed at the bottom of both ends of the hollow branch rod 8, directly aimed at one side of the sand and gravel processing equipment. This allows for more accurate dust suppression targeting the dust source, thereby improving dust removal efficiency. Combined with other atomizing nozzles, it effectively prevents dust from escaping from the sides. The inclination angle of the inclined atomizing nozzles 10 is set between 45° and 60°, such as 50° or 55°, to ensure that the water mist within this angle range can effectively contact the dust, thus improving dust suppression efficiency.

[0056] In some implementations, see Figure 4The column 6 has a longitudinal sliding cavity 13 on one side of its upper part. The lifting mechanism 11 is installed in the longitudinal sliding cavity 13 and includes a bearing 14 set at the bottom of the longitudinal sliding cavity 13 and a screw 15 set on the bearing 14. A drive motor 16 is set at the top of the longitudinal sliding cavity 13. The screw 15 passes through the top of the longitudinal sliding cavity 13 and is connected to the drive motor 16. The connecting piece 12 is threadedly engaged with the screw 15 and is in contact with the longitudinal sliding cavity 13 in a sliding manner.

[0057] During operation, the lifting mechanism 11 drives the screw 15 to rotate in conjunction with the bearing 14 via drive motors 16 on one or both sides, thereby raising and lowering the connecting piece 12. Simultaneously, the connecting piece 12 raises and lowers, driving the horizontal frame spray assembly 2 on the same side. This allows for adaptive adjustment based on the dust level or tilt of the sand and gravel processing equipment. The drive motors 16 can be manually controlled by a cable or remotely. In practice, other structures for the lifting mechanism are also possible.

[0058] In some embodiments, the hinge includes a U-shaped shaft 20 disposed on the connector and a rotating cylinder 21 that rotatably engages with the U-shaped shaft 20 and is fixedly connected to the end of the main hollow rod 7.

[0059] During operation, the horizontal frame spray assembly 2 can be raised and lowered synchronously from both sides, or raised and lowered from either side. The hinge includes a U-shaped shaft 20 mounted on the connector, a rotating cylinder 21 that rotatably engages with the U-shaped shaft 20, and a connecting extension rod that is fixedly connected to the rotating cylinder and rotatably connected to the main hollow rod 7. When raising and lowering from one side, the connecting extension rods on both sides are rotatably connected to the main hollow rod 7 and the connector, respectively (the structure can adopt existing structures, which will not be elaborated on here, or the hinge described in this case can be used). When raising and lowering from one side, the connecting extension rods can change synchronously to achieve the raising and lowering of the horizontal frame spray assembly 2 on one side.

[0060] In some implementations, see Figure 6 The bottom surface of the base 5 is provided with gripping teeth 17.

[0061] During operation, the purpose of setting the gripping teeth 17 on the bottom surface of the base 5 is to make the base 5 stable on the ground.

[0062] In some embodiments, the base 5 is provided with a mounting hole 18 and a cone rod 19 that passes through the mounting hole 18 and is driven into the ground.

[0063] During operation, a mounting hole 18 is provided on the base 5, and a cone rod 19 is provided on the mounting hole 18 to penetrate into the ground, so that the base 5 can be firmly fixed to the ground through the cone rod 19. The appropriate method is selected according to the actual geological conditions.

[0064] Finally, it should be noted that in this document, relationships such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "include," "contain," or any other variations are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0065] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0066] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A dust reduction device for aggregate processing, characterized by: The sand and gravel processing dust falling device comprises a vertical frame assembly (1), a horizontal frame spraying assembly (2) arranged on the vertical frame assembly (1) and a water pump (3) communicated with the horizontal frame spraying assembly (2), and the vertical frame assembly (1) is arranged on the outside of a sand and gravel processing equipment, and the horizontal frame spraying assembly (2) is arranged on the upside of the sand and gravel processing equipment. The vertical frame assembly (1) comprises a column group (4), and connecting rods (22) are arranged between the column groups (4); the column group (4) comprises two columns (6) arranged oppositely, the bottom of the column (6) is provided with a base (5), the upper part of the column (6) is provided with a lifting mechanism (11), the lifting mechanism (11) is provided with a connecting piece (12), and the horizontal frame spraying assembly (2) is connected with the connecting piece (12) through a hinge piece.

2. The aggregate processing dust reduction apparatus of claim 1, wherein: The horizontal frame spraying assembly (2) comprises main hollow rods (7) connected with each side column (6) in the adjacent column group (4), branch hollow rods (8) communicated with the two main hollow rods (7) arranged oppositely, and atomizing nozzles (9) uniformly arranged on the branch hollow rods (8); and the water pump (3) is communicated with the main hollow rods (7).

3. The aggregate processing dust reduction apparatus of claim 2, wherein: The atomizing nozzles (9) are arranged on both sides of the branch hollow rods (8) along the length direction of the main hollow rods (7) and on one side of the bottom of the branch hollow rods (8).

4. The aggregate processing dust reduction apparatus of claim 3, wherein: The bottom of the two ends of the branch hollow rods (8) is provided with inclined atomizing nozzles (10) inclined to one side of the sand and gravel processing equipment.

5. The aggregate processing dust reduction apparatus of claim 4, wherein: The inclination angle of the inclined atomizing nozzles (10) is 45°-60°.

6. The aggregate processing dust reduction apparatus of any one of claims 1-5, wherein: The upper part of the column (6) is provided with a longitudinal sliding cavity (13) on one side, the lifting mechanism (11) is arranged in the longitudinal sliding cavity (13), the longitudinal sliding cavity (13) comprises a bearing (14) arranged on the bottom of the longitudinal sliding cavity (13), a screw rod (15) arranged on the bearing (14), a driving motor (16) arranged on the top of the longitudinal sliding cavity (13), the screw rod (15) passes through the top of the longitudinal sliding cavity (13) and is connected with the driving motor (16), the connecting piece (12) is threadedly connected with the screw rod (15) and is in contact sliding connection with the longitudinal sliding cavity (13).

7. The aggregate processing dust reduction apparatus of claim 6, wherein: The hinge piece comprises a U-shaped shaft rod (20) arranged on the connecting piece, and a rotating cylinder (21) in rotating connection with the U-shaped shaft rod (20) and fixedly connected with the end of the main hollow rod (7).

8. The aggregate processing dust reduction apparatus of claim 7, wherein: The bottom surface of the base (5) is provided with a grab tooth (17).

9. The aggregate processing dust reduction apparatus of claim 7 or 8, wherein: The base (5) is provided with a mounting hole (18), and a taper rod (19) penetrating through the mounting hole (18) is arranged for tapering into the ground. The base (5) is provided with a mounting hole (18), and a taper rod (19) penetrating through the mounting hole (18) is arranged for tapering into the ground.