Vibrating screen convenient for collecting dust

Abstract

The utility model discloses a vibrating screen convenient to collect dust, which relates to the technical field of vibrating screens, and comprises a screen body and a top cover connected on the screen body, the top of the top cover is connected with a feed pipe and a support frame, the top of the support frame is in threaded connection with a cover plate, the inside of the cover plate is connected with a central pipe extending into the screen body, and the central pipe is connected with the top of the top cover. A collecting frame is arranged between the central pipe and the supporting frame in a sleeved mode, through vent grooves are formed in the outer wall of the central pipe and the outer wall of the supporting frame, an upper filtering layer and a lower filtering layer are connected to the inner ring face of the collecting frame, a bottom plate is connected to the bottom of the supporting frame, and a through hole coaxial with the central pipe is formed in the bottom plate. According to the vibrating screen convenient to collect the dust, the dust in the screen body can be intercepted so that the dust can be collected and cleaned in a unified mode, meanwhile, the effect of preventing the dust from leaking is achieved, and pollution to the environment is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vibrating screens, and more particularly to a vibrating screen that is convenient for collecting dust. Background Art

[0002] Vibrating screens can screen and sort materials. They are equipped with a mesh that vibrates, filtering the material on the mesh. Smaller materials fall below the mesh and are discharged from the outlet below the vibrating screen, while larger materials remain on the mesh, achieving screening and sorting. A linear vibrating screen is a type of vibrating screen. It is rectangular in shape, with stabilizing mechanisms installed at the four corners and a long strip of mesh installed inside.

[0003] When screening powder or fine particle materials, a large amount of dust will be generated. If it is not collected, the dust will spread into the air, causing serious pollution to the working environment, which does not meet environmental protection requirements. At the same time, long-term exposure to a high-concentration dust environment will damage the respiratory system of the operator and cause occupational diseases such as pneumoconiosis. The dust collection device reduces the dust concentration in the workplace and protects the occupational health and safety of employees. For example, Chinese patent application number 202020562525.5 discloses a vibrating screen with a dust collection device, which includes a base, a plurality of springs fixedly connected to the base, each of which is fixedly connected to a frame, a vibration motor fixedly connected to the bottom side of the frame, and a first sieve plate fixedly connected to the top of the frame. The first sieve plate is tilted and has a plurality of first sieve holes of different sizes. The aperture of the first sieve hole increases from high to low along the surface of the first sieve plate. A dust cover is fixedly connected to the top wall of the first sieve plate. Although the vibrating screen with a dust collection device has the function of collecting dust particles, it still has the following problems:

[0004] 1. The dust collecting device collects dust through an exhaust fan. The use of an exhaust fan will undoubtedly increase the noise generated and the energy consumption of the equipment. At the same time, when screening powdery materials, the material will be inhaled, which will increase the consumption of the material and is not convenient for screening powdery materials.

[0005] 2. When cleaning the dust bag, since the dust bag is in a tilted state, dust will float everywhere, causing dust leakage. At the same time, when cleaning the dust bag, you need to use a brush to clean it so that it can be cleaned off the dust bag.

[0006] Therefore, it is necessary to propose a vibrating screen that is convenient for collecting dust to solve the above problems. Utility Model Content

[0007] In view of the above problems, the utility model provides a vibrating screen that is convenient for collecting dust. It has the function of filtering dust, reducing pollution to the environment. At the same time, it can clean the lower filter layer, reducing the labor intensity during cleaning.

[0008] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0009] A vibrating screen for collecting dust, comprising a sieve body and a top cover connected to the sieve body, the top of the top cover being connected to a feed pipe and a support frame, the top of the support frame being threadedly connected to a cover plate, the interior of the cover plate being connected to a central tube extending into the sieve body, a collecting frame being sleeved between the central tube and the support frame, a through ventilation groove being provided on the outer walls of the central tube and the support frame, an upper filter layer and a lower filter layer being connected to the inner annular surface of the collecting frame, the bottom of the support frame being connected to a bottom plate, the bottom plate being provided with a through hole coaxially arranged with the central tube;

[0010] The top of the central tube is connected to a breathable plate, the middle of the central tube is connected to a baffle, the collecting frame is provided with a raised portion corresponding to the baffle, the raised portion is located between the upper filter layer and the lower filter layer, and a cavity for air flow is provided in the support frame;

[0011] The bottom of the collecting frame is connected with an annular plate, and the annular plate is located below the central tube.

[0012] Preferably, a cleaning brush is connected to the outer annular surface of the bottom of the central tube, bristles are provided on the outer annular surface of the cleaning brush, and spiral grooves are provided on the bristles.

[0013] Preferably, the annular plate is threadedly connected to the bottom of the collecting frame, and a rib is provided on the top of the annular plate, and the rib is sleeved on the bottom of the inner annular surface of the central tube.

[0014] Preferably, an annular slope is provided on the top of the outer annular surface of the bristles.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. This device is equipped with a dust filter component on the top cover, which can intercept the dust in the sieve body so as to collect and clean the dust in a unified manner. At the same time, it can prevent dust leakage and reduce pollution to the environment.

[0017] 2. This device is equipped with an annular plate component at the bottom of the support frame. When the central tube is pulled out, the cleaning brush at the bottom of the central tube will scrape off the dust attached to the lower filter layer and make it fall on the annular plate at the bottom, which plays a role in quickly cleaning the dust and reduces the labor during cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0019] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0020] Figure 3 Schematic diagram of the airflow direction in the present invention;

[0021] Figure 4 This is a schematic diagram of the central tube and collection rack structure in the utility model.

[0022] Reference numerals:

[0023] 101. Sieve body; 102. Top cover; 103. Feed pipe; 104. Support frame; 105. Cover plate; 106. Center tube; 107. Collecting frame; 108. Upper filter layer; 109. Lower filter layer; 110. Bottom plate; 111. Breathable plate; 112. Baffle; 113. Raised portion; 114. Cavity; 115. Annular plate; 116. Cleaning brush; 117. Spiral groove; 118. Side rib; 119. Annular slope. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1-4A vibrating screen for collecting dust includes a sieve body 101 and a top cover 102 connected to the sieve body 101. The top cover 102 covers the top of the sieve body 101 to prevent the internal dust from leaking out. The top of the top cover 102 is connected to a feed pipe 103 and a support frame 104. The top of the support frame 104 is threadedly connected to a cover plate 105. The cover plate 105 can be removed from the top of the support frame 104 by rotating it, and then the collection frame 107 can be taken out. The inside of the cover plate 105 is connected to a central pipe 106 extending into the sieve body 101. The central pipe 106 A collecting frame 107 is sleeved between the support frame 104, and a through ventilation groove is provided on the outer wall of the central tube 106 and the support frame 104, so that the air flow in the sieve body 101 can flow out from the ventilation groove. An upper filter layer 108 and a lower filter layer 109 are connected to the inner annular surface of the collecting frame 107, and the lower filter layer 109 and the upper filter layer 108 are made of filtering material. The bottom of the support frame 104 is connected to a bottom plate 110, and a through hole is provided on the bottom plate 110 coaxially with the central tube 106, so that the gas in the sieve body 101 can enter the central tube 106;

[0026] refer to Figure 2 and Figure 3 , the top of the central tube 106 is connected to a breathable plate 111, and the middle of the central tube 106 is connected to a baffle 112. The baffle 112 can separate the central tube 106 into two parts, and the airflow flowing upward from the bottom will be blocked, so that it moves toward the surroundings. The collecting frame 107 is provided with a raised portion 113 corresponding to the baffle 112, and the raised portion 113 and the baffle 112 cooperate with each other to play a sealing role. Specifically, the outer annular surface of the baffle 112 is provided with a sealing ring for fitting and connecting with the raised portion 113 to play a sealing role. The raised portion 113 is located between the upper filter layer 108 and the lower filter layer 109, and the support frame 104 is provided with a cavity 114 for air flow. Specifically, refer to Figure 3 The dust-containing gas in the sieve body 101 enters the central tube 106 through the through-holes on the bottom plate 110, passes through the lower filter layer 109 and enters the cavity 114, then passes through the upper filter layer 108 and returns to the central tube 106, and is then discharged from the top air permeable plate 111;

[0027] refer to Figure 3 and Figure 4 The bottom of the collecting frame 107 is connected to an annular plate 115 , which is used to receive dust falling from the surface of the lower filter layer 109 , thereby facilitating dust collection. The annular plate 115 is located below the central tube 106 .

[0028] Specifically, refer to Figure 4A cleaning brush 116 is connected to the outer ring surface of the bottom of the central tube 106. The cleaning brush 116 is used to clean the dust attached to the inner ring surface of the lower filter layer 109. The outer ring surface of the cleaning brush 116 is provided with bristles, and the bristles are provided with spiral grooves 117. The cleaned dust will fall onto the annular plate 115 at the bottom through the spiral grooves, thereby collecting the dust.

[0029] Specifically, the annular plate 115 is threadedly connected to the bottom of the collecting frame 107. By rotating, the annular plate 115 can be easily removed from the collecting frame 107, and then the dust collected on the annular plate 115 can be cleaned. A rib 118 is provided on the top of the annular plate 115, and the rib 118 is sleeved on the bottom of the inner annular surface of the central tube 106. The rib 118 prevents dust from leaking out from the pupil in the center.

[0030] Specifically, refer to Figure 4 An annular slope 119 is provided on the top of the outer ring surface of the bristles. When the cleaning brush 116 moves upward, some dust will accumulate on the top of the cleaning brush 116. The annular slope 119 can enable the dust on the top to move through the slope to the spiral groove 117, and then fall from the spiral groove 117 to the annular plate 115 at the bottom.

[0031] In this embodiment, when the material is added into the sieve body 101, dust will be stirred up inside and move upward, entering the bottom of the central tube 106 from the through hole on the bottom plate 110. After being blocked by the baffle 112, the dust will pass through the lower filter layer 109, and the lower filter layer 109 will filter the dust in the air flow. Then, the dust will enter the cavity 114. When it moves to the top of the cavity 114, it will pass through the upper filter layer 108 and return to the central tube 106, and finally be discharged from the top air permeable plate 111.

[0032] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A vibrating screen for collecting dust, comprising a screen body (101) and a top cover (102) connected to the screen body (101), characterized in that: The top of the top cover (102) is connected to a feed pipe (103) and a support frame (104), the top of the support frame (104) is threadedly connected to a cover plate (105), the inside of the cover plate (105) is connected to a central tube (106) extending into the screen body (101), a collecting frame (107) is sleeved between the central tube (106) and the support frame (104), a through-ventilation groove is provided on the outer walls of the central tube (106) and the support frame (104), an upper filter layer (108) and a lower filter layer (109) are connected to the inner annular surface of the collecting frame (107), the bottom of the support frame (104) is connected to a bottom plate (110), and a through hole is provided on the bottom plate (110) which is coaxial with the central tube (106); The top of the central tube (106) is connected to a breathable plate (111), the middle of the central tube (106) is connected to a baffle (112), the collecting frame (107) is provided with a raised portion (113) corresponding to the baffle (112), the raised portion (113) is located between the upper filter layer (108) and the lower filter layer (109), and the support frame (104) is provided with a cavity (114) for air flow; The bottom of the collecting rack (107) is connected to an annular plate (115), and the annular plate (115) is located below the central tube (106).

2. A vibrating screen for collecting dust according to claim 1, characterized in that: A cleaning brush (116) is connected to the outer annular surface of the bottom of the central tube (106), and bristles are provided on the outer annular surface of the cleaning brush (116), and spiral grooves (117) are provided on the bristles.

3. A vibrating screen for collecting dust according to claim 1, characterized in that: The annular plate (115) is threadedly connected to the bottom of the collecting frame (107). A rib (118) is provided on the top of the annular plate (115). The rib (118) is sleeved on the bottom of the inner annular surface of the central tube (106).

4. A vibrating screen for collecting dust according to claim 2, characterized in that: An annular inclined surface (119) is provided on the top of the outer annular surface of the bristles.

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