Vibrating screen for gravel screening

Abstract

The vibrating screen comprises a vibrating screen body, a dust removal mechanism and a flattening mechanism, a first vibrating screen, a second vibrating screen and a third vibrating screen are sequentially installed in the vibrating screen body from top to bottom, and a dustproof shell is arranged in the vibrating screen body and located above the first vibrating screen. The dust removal mechanism is composed of a dust collector arranged outside the vibrating screen body, and a first dust collection cover, a second dust collection cover and a third dust collection cover which are connected with the dust collector through pipelines, and the flattening mechanism is arranged above a first vibrating screen in the vibrating screen body and located on the lower side of a feeding position in the vibrating screen body. A dust collector in the dust removal mechanism is matched with a first dust suction hood, a second dust suction hood and a third dust suction hood, dust can be effectively removed, entering gravel can be flattened through reciprocating motion of the scraper in the flattening mechanism, accumulation is prevented, and the screening efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sand and gravel screening, in particular to a vibrating screen for sand and gravel screening. Background Art

[0002] Sand and gravel refers to a loose mixture of sand and crushed stone. In geology, mineral or rock particles with a particle size of 0.074 to 2 mm are called sand, and particles with a particle size greater than 2 mm are called gravel or angular gravel. If the crushed stone in the sand and gravel is mostly gravel, it is called sand and gravel. In daily life, some people also call sandstone sand and gravel; before processing, sand and gravel need to be screened with the help of a vibrating screen to achieve the screening operation of sand and gravel of different particle sizes, which is convenient for subsequent processing.

[0003] China Patent Network discloses a sand and gravel screening vibrating screen (publication number: CN 219899039U), including a workbench, an adjustment component is correspondingly installed on the upper surface of the workbench, a sand and gravel screen frame is correspondingly installed above the adjustment component, a vibration component is correspondingly installed between the sand and gravel screen frame and the adjustment component, and two fixed frames are installed at intervals at the top and bottom of the sand and gravel screen frame, and a screen is correspondingly installed on the fixed frame. The utility model utilizes a vibration component to link the sand and gravel screen frame to follow the up and down vibration, which can quickly screen the sand and gravel. At the same time, the screen in the sand and gravel screen frame is connected to the fixed frame through a detachable structure, which is convenient for the subsequent replacement and maintenance of the staff, and reduces the difficulty of the staff's work. In addition, with the cooperation of the adjustment component, the sand and gravel screen frame can be adjusted to different inclination angles, the circulation speed of the sand and gravel can be fine-tuned, and the screening speed of the sand and gravel can be adjusted, which expands the overall functionality of the vibrating screen.

[0004] The above technology has the following problems in use: 1. When sand and gravel enter the vibrating screen, a large amount of dust is easily generated. Without a dust removal mechanism, it is easy to cause environmental pollution and affect the workers; 2. When sand and gravel enter the top screen of the vibrating screen, it is easy to cause accumulation and cannot be flattened, which reduces the screening efficiency. Therefore, there is room for improvement. Utility Model Content

[0005] The utility model provides a vibrating screen for sand and gravel screening to solve the problems raised in the background technology.

[0006] In order to solve the above problems, the utility model provides a vibrating screen for sand and gravel screening, including a vibrating screen body, a dust removal mechanism, and a flattening mechanism. The vibrating screen body is provided with a first vibrating screen, a second vibrating screen, and a third vibrating screen in sequence from top to bottom. The vibrating screen body is provided with a dustproof shell above the first vibrating screen. The dust removal mechanism is composed of a dust collector arranged outside the vibrating screen body, and a first dust suction cover, a second dust suction cover, and a third dust suction cover connected to the dust collector through a pipeline. The first dust suction cover is arranged in the dustproof shell and is connected to the inside of the vibrating screen body. The second dust suction cover is fixedly arranged on one side of the vibrating screen body and is connected to the inside of the vibrating screen body. The third The dust hood is fixedly mounted on one side of the vibrating screen body, located below the second dust hood, and is connected to the inside of the vibrating screen body. The flattening mechanism is arranged above the first vibrating screen in the vibrating screen body, and is located on the lower side of the feed in the vibrating screen body. The flattening mechanism is composed of a motor and a scraper. The motor is arranged on the outer side of the vibrating screen body, and a threaded rod is connected to the power output shaft of the motor. The threaded rod is rotatably arranged in the vibrating screen body, and is located above the first vibrating screen and below the dustproof shell. The scraper is threadedly connected to the threaded rod, and both ends of the scraper are slidably connected to the two guide rods, and the guide rods are fixedly installed in the vibrating screen body, and are located on both sides of the threaded rod.

[0007] Preferably, the second dust hood is arranged below the first vibrating screen and above the second vibrating screen, and the third dust hood is arranged below the second vibrating screen and above the third vibrating screen.

[0008] Preferably, the diameter of the first dust hood is larger than that of the second dust hood, and the diameter of the second dust hood is larger than that of the third dust hood.

[0009] Preferably, inclined scraping surfaces are provided on both sides of the bottom of the scraper, and the bottom surface of the scraper does not contact the upper surface of the first vibrating screen.

[0010] The beneficial effects of adopting the above technical solution are:

[0011] 1. The dust generated by the vibrating screen body during operation can be quickly collected by using the vacuum cleaner in the dust removal mechanism in conjunction with the first dust hood, the second dust hood and the third dust hood, thereby preventing the dust from spreading and affecting the environment.

[0012] 2. The motor in the leveling mechanism drives the scraper to move in the vibrating screen body, thereby leveling the sand and gravel entering the vibrating screen body, thereby preventing sand and gravel accumulation and effectively improving the screening efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0014] Figure 2This is a schematic diagram of the three-dimensional structure of the utility model from another viewing angle.

[0015] Figure 3 For this utility model Figure 2 Schematic diagram of the enlarged structure of part A.

[0016] Among them: 1-vibrating screen body; 11-first vibrating screen; 12-second vibrating screen; 13-third vibrating screen; 14-dustproof shell; 2-dust removal mechanism; 21-dust collector; 22-first dust cover; 23-second dust cover; 24-third dust cover; 3-flattening mechanism; 31-motor; 32-scraper; 321-scraping surface DETAILED DESCRIPTION

[0017] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0018] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, a movable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] like Figure 1-3In this embodiment, a vibrating screen for sand and gravel screening includes a vibrating screen body 1, a dust removal mechanism 2, and a flattening mechanism 3. The vibrating screen body 1 is provided with a first vibrating screen 11, a second vibrating screen 12, and a third vibrating screen 13 from top to bottom. The vibrating screen body 1 is provided with a dust cover 14 above the first vibrating screen 11. The dust removal mechanism 2 is composed of a dust collector 21 arranged outside the vibrating screen body 1, and a first dust cover 22, a second dust cover 23, and a third dust cover 24 connected to the dust collector 21 through a pipeline. The first dust cover 22 is arranged in the dust cover 14 and is connected to the inside of the vibrating screen body 1. The second dust cover 23 is fixedly arranged on one side of the vibrating screen body 1 and is connected to the inside of the vibrating screen body 1. The third dust cover 24 is fixedly arranged on the vibrating screen body 1. On one side of the moving screen body 1, it is located below the second dust cover 23 and is connected to the inside of the vibrating screen body 1. The flattening mechanism 3 is arranged above the first vibrating screen 11 in the vibrating screen body 1 and is located at the lower side of the feed in the vibrating screen body 1. The flattening mechanism 3 is composed of a motor 31 and a scraper 32. The motor 31 is arranged on the outer side of the vibrating screen body 1, and a reciprocating screw 33 is connected to the power output shaft of the motor 31. The reciprocating screw 33 is rotatably arranged in the vibrating screen body 1 and is located above the first vibrating screen 11 and below the dust cover 14. The scraper 32 is threadedly connected to the reciprocating screw 33. Both ends of the scraper 32 are slidably connected to two guide rods 34, and the guide rods 34 are fixedly installed in the vibrating screen body 1 and are located on both sides of the reciprocating screw 33.

[0021] Through the above technical scheme, when sand and gravel enter the vibrating screen body 1 for screening, the sand and gravel pass through the feeding port in the middle and upper part of the vibrating screen body 1 and enter the first vibrating screen 11. At this time, the motor 31 in the flattening mechanism 3 drives the reciprocating screw 33 to rotate, thereby driving the scraper 32 threaded in the reciprocating screw 33 to move in the vibrating screen body 1. The two guide rods 34 are arranged to make the scraper 32 more stable when moving, thereby flattening the sand and gravel on the upper surface of the first vibrating screen 11 to prevent the accumulation of sand and gravel, and at the same time improve the screening efficiency of the first vibrating screen 11 for sand and gravel. The sand and gravel entering the vibrating screen body 1 and the dust generated when the first vibrating screen 11, the second vibrating screen 12, and the third vibrating screen 13 are dusted by the first dust hood 22 arranged on the dustproof shell 14, and the second dust hood 23 and the third dust hood 24 on the side of the vibrating screen body 1 in cooperation with the vacuum cleaner 21, thereby reducing dust spread and preventing environmental pollution.

[0022] Preferably, the second dust hood 23 is disposed below the first vibrating screen 11 and above the second vibrating screen 12 , and the third dust hood 24 is disposed below the second vibrating screen 12 and above the third vibrating screen 13 .

[0023] Through the above technical scheme, the second dust hood 23 cooperates with the dust collector 21 to effectively remove the dust generated when the second vibrating screen 12 is working, and the third dust hood 24 cooperates with the dust collector 21 to effectively remove the dust generated when the third vibrating screen 13 is working, thereby ensuring the removal of dust in the vibrating screen body 1 and effectively preventing the dust from spreading.

[0024] Preferably, the diameter of the first dust hood 22 is larger than that of the second dust hood 23 , and the diameter of the second dust hood 23 is larger than that of the third dust hood 24 .

[0025] Through the above technical solution, the suction force of the first dust hood 22, the second dust hood 23 and the third dust hood 24 is guaranteed when the vacuum cleaner 21 is working, thereby ensuring the dust removal effect.

[0026] Preferably, inclined scraping surfaces 321 are provided on both sides of the bottom of the scraper 32 , and the bottom surface of the scraper 32 does not contact the upper surface of the first vibrating screen 11 .

[0027] Through the above technical solution, the setting of the inclined scraping surfaces 321 on both sides can ensure that when the scraper 32 moves back and forth in the reciprocating screw 33, the sand and gravel on the upper surface of the first vibrating screen 11 can be effectively flattened, thereby preventing accumulation and improving screening efficiency.

[0028] Finally, it should be noted that the above implementation cases are only used to illustrate the present invention, rather than to limit the technical solutions described in the present invention; therefore, although this specification has described the present invention in detail with reference to the above-mentioned embodiments, ordinary technicians in this field should understand that the present invention can still be modified or replaced by equivalents, and all technical solutions and improvements that do not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention; technologies not described in detail in the present invention are implemented with existing technologies.

Claims

1. A vibrating screen for sand and gravel screening, comprising a vibrating screen body, a dust removal mechanism, and a flattening mechanism, characterized in that: The first vibrating screen, the second vibrating screen and the third vibrating screen are sequentially installed in the vibrating screen body from top to bottom. A dust cover is provided in the vibrating screen body above the first vibrating screen. The dust removal mechanism is composed of a dust collector arranged outside the vibrating screen body, and a first dust cover, a second dust cover and a third dust cover connected to the dust collector through a pipeline. The first dust cover is arranged in the dust cover and is connected to the inside of the vibrating screen body. The second dust cover is fixedly arranged on one side of the vibrating screen body and is connected to the inside of the vibrating screen body. The third dust cover is fixedly arranged on one side of the vibrating screen body and is located under the second dust cover. The flattening mechanism is arranged on the upper side of the first vibrating screen in the vibrating screen body and is located at the lower side of the feeding part in the vibrating screen body. The flattening mechanism is composed of a motor and a scraper. The motor is arranged on the outer side of the vibrating screen body, and a threaded rod is connected to the power output shaft of the motor. The threaded rod is rotatably arranged in the vibrating screen body and is located above the first vibrating screen and below the dustproof shell. The scraper is threadedly connected to the threaded rod. Both ends of the scraper are slidably connected to two guide rods, and the guide rods are fixedly installed in the vibrating screen body and are located on both sides of the threaded rod.

2. A vibrating screen for sand and gravel screening according to claim 1, characterized in that: The second dust hood is arranged below the first vibrating screen and above the second vibrating screen, and the third dust hood is arranged below the second vibrating screen and above the third vibrating screen.

3. A vibrating screen for sand and gravel screening according to claim 1, characterized in that: The diameter of the first dust hood is larger than that of the second dust hood, and the diameter of the second dust hood is larger than that of the third dust hood.

4. A vibrating screen for sand and gravel screening according to claim 1, characterized in that: Inclined scraping surfaces are arranged on both sides of the bottom of the scraper, and the bottom surface of the scraper does not contact the upper surface of the first vibrating screen.

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