Vibrating screen with dust collection function

Abstract

The utility model discloses a vibrating screen with a dust collection function, which relates to the technical field of vibrating screen equipment, and comprises a screen body and a screen cover, the bottom of the screen cover is connected with an airflow disc, the top of the screen cover is provided with an airflow frame penetrating through the screen cover, and airflow channels are arranged in the airflow disc and the airflow frame. A dust collecting bag is arranged outside the airflow frame, and a spiral scraping plate is arranged at the top of the airflow frame. According to the vibrating screen with the dust collection function, the dust collection bag can capture dust particles generated during use during vibration, the situation that dust is scattered all around is avoided, meanwhile, when the dust collection bag moves upwards, the dust collection bag makes contact with the scraper blade, dust on the inner wall can be scraped off, the effect of pre-cleaning the dust collection bag is achieved, and the dust collection effect is improved. And the dust disc at the bottom can be used for collecting falling dust particles, so that the dust particles can be conveniently cleaned.

Description

Technical Field

[0001] The utility model relates to the technical field of vibrating screen equipment, and more specifically to a vibrating screen with a dust collecting function. Background Art

[0002] Vibrating screen can screen and sort materials. The vibrating screen is equipped with a screen. The materials on the screen are screened by vibration, so that small-diameter materials fall under the screen and are discharged from the outlet below the vibrating screen, while large-diameter materials stay on the screen to achieve screening and sorting. Linear vibrating screen is a type of vibrating screen. It is rectangular, with stabilizing mechanisms installed on the four corners and a long strip of screen 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 cause damage to 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 ensures the occupational health and safety of employees. For example, the Chinese patent application number 202020562525.5 discloses a vibrating screen with a dust collection device, the structure includes a base, a plurality of springs are fixedly connected to the base, each of the springs is fixedly connected to a frame, a vibration motor is fixedly connected to the bottom side of the frame, and a first sieve plate is fixedly connected to the top of the frame. The first sieve plate is tilted, and a plurality of first sieve holes of different sizes are opened on the first sieve plate. 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, there are still 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 and energy consumption of the equipment. At the same time, when screening powdery materials, the materials will be sucked in, which will increase the consumption of materials and make it inconvenient to screen powdery materials.

[0005] 2. When cleaning the dust bag, it is necessary to disassemble multiple bolt connectors to remove it, which is a cumbersome process. At the same time, dust particles accumulate inside the dust bag, making it inconvenient to clean the inside.

[0006] Therefore, it is necessary to propose a vibrating screen with dust collection function to solve the above problems. Utility Model Content

[0007] 1. Technical issues to be solved

[0008] In view of the above problems, the utility model provides a vibrating screen with a dust collection function; it has the function of collecting the dust generated when the vibrating screen is working, and can pre-clean the inner wall of the dust bag, thereby reducing the cleaning situation when cleaning the dust bag later, and facilitating the cleaning of the collected dust particles.

[0009] (II) Technical solution

[0010] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0011] A vibrating screen with dust collection function, comprising a screen body and a screen cover, wherein the bottom of the screen cover is connected with an airflow plate, the top of the screen cover is provided with an airflow frame penetrating the screen cover, the insides of the airflow plate and the airflow frame are provided with airflow channels, the outside of the airflow frame is provided with a dust collection bag, and the top of the airflow frame is provided with a spiral scraper;

[0012] The outer ring surface of the dust bag is connected to a support frame, the bottom of the support frame is connected to a baffle ring, the bottom of the airflow frame is connected to a lower baffle plate, the lower baffle plate is located on the top of the sieve cover, the outer ring surface of the airflow frame is slidably connected to a dust tray, the bottom wall of the dust tray is connected to a boss, the top of the boss is connected to a sealing rubber ring, and the sealing rubber ring is in contact with the baffle ring;

[0013] A fixing rod is connected to the top of the airflow rack, a mounting frame and a top plate are sleeved on the outside of the fixing rod, the mounting frame is located at the bottom of the top plate, the scraper is connected to the outer ring surface of the mounting frame, the top plate is connected to the top of the support frame, a threaded portion and a clamping portion are provided on the fixing rod, a groove that cooperates with the clamping portion is provided at the bottom of the mounting frame, a nut is threadedly connected to the top of the threaded portion, and the nut fixes the top plate and the mounting frame to the fixing rod.

[0014] Preferably, a groove is provided at the top of the mounting frame, a spring is connected in the groove, an annular plate is connected to the top of the spring, and the upper surface of the annular plate is in contact with the top plate.

[0015] Preferably, a guide plate is provided inside the airflow rack, and a diverter is provided on the guide plate.

[0016] Preferably, a circular tube is rotatably connected inside the guide disk, a conical tube is connected to the top of the circular tube, the conical tube is located in the diversion part, bristles are connected to the top of the conical tube, and the tops of the bristles are against the inner wall of the diversion part.

[0017] Preferably, the bottom of the circular tube extends into the sieve body, and a retaining net is connected to the bottom of the circular tube.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1. The device is provided with a dust bag and a scraper on the screen cover. The dust bag can capture the dust particles generated during vibration to avoid dust scattering. At the same time, when the dust bag moves upward, it will come into contact with the scraper, and the dust on the inner wall will be scraped off, which has the function of pre-cleaning the dust bag to reduce the tediousness of manual cleaning of the dust bag. In addition, the dust tray at the bottom can collect the fallen dust particles for easy cleaning.

[0020] 2. This device has a diverter section in the guide plate through which the airflow passes. The diverter section is bent to intercept and clean the dust in the airflow, so that the dust material can flow back into the vibrating screen, thereby saving dust raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0022] Figure 2 It is a cross-sectional schematic diagram of the connection structure between the airflow frame and the guide plate in the utility model;

[0023] Figure 3 It is a partial three-dimensional cross-sectional schematic diagram of the connection structure between the scraper and the dust bag in the utility model;

[0024] Figure 4 It is a three-dimensional schematic diagram of the position structure of the air flow rack and the mounting rack in the utility model.

[0025] Reference numerals:

[0026] 101. sieve body; 102. sieve cover; 103. airflow plate; 104. airflow frame; 105. dust bag; 106. scraper; 107. support frame; 108. baffle ring; 109. lower baffle plate; 110. dust plate; 111. sealing rubber ring; 112. fixing rod; 113. mounting frame; 114. top plate; 115. threaded part; 116. clamping part; 117. nut; 118. spring; 119. annular plate; 120. guide plate; 121. diversion part; 122. round tube; 123. conical tube; 124. bristles; 125. baffle net. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-4 A vibrating screen with dust collection function includes a screen body 101 and a screen cover 102. The screen body 101 is a square-structured vibrating screen, preferably a linear vibrating screen. This is a mature device and will not be described in detail here. The bottom of the screen cover 102 is connected to an airflow disk 103, and the airflow disk 103 is located in the vibrating screen. The airflow with dust enters from the airflow disk 103, passes through the airflow rack 104, and the dust adheres to the dust bag 105. The airflow passes through the dust bag 105 and is discharged. The top of the screen cover 102 is provided with an airflow rack 104 that penetrates the screen cover 102. The airflow disk 103 is connected to the bottom of the screen cover 102. The airflow disk 103 is located in the vibrating screen. The airflow with dust enters from the airflow disk 103, passes through the airflow rack 104, and the dust adheres to the dust bag 105. The airflow passes through the dust bag 105 and is discharged. 03 and the airflow rack 104 are provided with airflow channels inside, and a dust bag 105 is provided outside the airflow rack 104. The dust bag 105, also known as a filter, a dust removal net or an air purification net, is a device for capturing pollutants such as dust, particulate matter, pollen, and smoke in the air. This is a mature device and will not be described in detail here. A spiral scraper 106 is provided on the top of the airflow rack 104. The spirally arranged scraper 106 can move the dust particles remaining thereon downward along the arc surface when the device vibrates, thereby cleaning the scraper 106.

[0029] refer to Figure 2 and Figure 3 A support frame 107 is connected to the outer ring surface of the dust bag 105, and the dust bag 105 is connected to the support frame 107. The support frame 107 is used to support the dust bag 105. A baffle ring 108 is connected to the bottom of the support frame 107. When the support frame 107 is installed on the airflow frame 104, the baffle ring 108 at the bottom will press on the sealing rubber ring 111, thereby playing a sealing role, so that the airflow can only pass through the dust bag 105. The bottom of the airflow frame 104 is connected to a lower baffle plate 109, and the lower baffle plate 109 is located on the top of the sieve cover 102. The outer ring surface of the airflow rack 104 is slidably connected with a dust tray 110. When the dust bag 105 is removed from the airflow rack 104, the scraper 106 will come into contact with the inner wall of the dust bag 105, so as to scrape off the dust inside. The scraped dust will fall into the dust tray 110. The dust tray 110 can be taken down from the airflow rack 104 to facilitate dust cleaning. A boss is connected to the bottom wall of the dust tray 110, and a sealing rubber ring 111 is connected to the top of the boss. The sealing rubber ring 111 comes into contact with the retaining ring 108.

[0030] refer to Figure 3 and Figure 4The top of the airflow frame 104 is connected to a fixing rod 112, and the outer sleeve of the fixing rod 112 is provided with a mounting frame 113 and a top plate 114, and the mounting frame 113 is located at the bottom of the top plate 114. After removing the nut 117 on the fixing rod 112, the top plate 114 and the mounting frame 113 can be removed in turn, and the scraper 106 is connected to the outer ring surface of the mounting frame 113, and the top plate 114 is connected to the top of the support frame 107. The fixing rod 112 is provided with a threaded portion 115 and a clamping portion 116, and the fixing rod 112 is connected to the outer ring surface of the mounting frame 113. The mounting frame 113 is fixed by the clamping portion 116 to prevent the mounting frame 113 from rotating. A groove that cooperates with the clamping portion 116 is provided at the bottom of the mounting frame 113. It should be noted that when the nut 117 is not tightened, the top plate 114 can rotate on the top of the mounting frame 113, but it will not affect the dust bag 105 and the scraper 106. The top of the threaded portion 115 is threadedly connected with a nut 117, and the nut 117 fixes the top plate 114 and the mounting frame 113 to the fixing rod 112.

[0031] Specifically, refer to Figures 2 to 4 A groove is provided at the top of the mounting frame 113. When the top plate 114 is removed from the fixing rod 112, the spring 118 will extend upward, thereby lifting the top plate 114 to prevent the mounting frame 113 from being lifted up when the top plate 114 is removed. At the same time, the mounting frame 113 has a certain weight and will not be lifted up when the dust bag 105 rises and contacts the scraper 106. The spring 118 is connected in the groove, and the top of the spring 118 is connected to an annular plate 119, and the upper surface of the annular plate 119 contacts the top plate 114.

[0032] Specifically, refer to Figure 2 A guide plate 120 is provided inside the airflow rack 104, and a diverter 121 is provided on the guide plate 120. The diverter 121 on the guide plate 120 is bent. When the airflow passes through, part of the dust will remain at the bend due to inertia. When the circular tube 122 rotates due to vibration, the bristles 124 on the top will be driven to clean the bend.

[0033] Specifically, refer to Figure 2 The guide plate 120 is internally rotatably connected to a circular tube 122, and the top of the circular tube 122 is connected to a conical tube 123. The opening of the conical tube 123 is upward, so that the fallen dust will fall on the conical tube 123, and then move back to the vibrating screen through the circular tube 122, which helps to save raw materials when screening powdery materials. The conical tube 123 is located in the diversion part 121, and the top of the conical tube 123 is connected to bristles 124, and the top of the bristles 124 is against the inner wall of the diversion part 121.

[0034] Specifically, refer to Figure 2The bottom of the circular tube 122 extends into the screen body 101, and a baffle 125 is connected to the bottom of the circular tube 122. The baffle 125 is a baffle with holes, which can allow the material to enter the vibrating screen through the holes and reduce the airflow from here into the airflow channel.

[0035] In this embodiment, reference Figure 1 and Figure 2 The sieve cover 102 is mounted on the sieve body 101, and the dust collecting structure is arranged on the sieve cover 102. When the sieve body 101 sieves dust materials, the dust generated by vibration will enter the airflow frame 104 from the airflow channel on the airflow plate 103, and after being discharged from the airflow frame 104, it will hit the inner surface of the dust bag 105, and the dust bag 105 can capture the dust particles in the airflow;

[0036] refer to Figure 2 When the airflow flows through the diverter 121 in the guide plate 120, the dust particles will be retained at the bend due to inertia, and the circular tube 122 will rotate due to vibration, driving the bristles 124 on the top to clean the inner wall of the diverter 121. The cleaned dust will fall on the conical tube 123, and then return to the vibrating screen after passing through the circular tube 122 at the bottom, which has the effect of saving dust materials.

[0037] refer to Figure 3 and Figure 4 When the dust bag 105 needs to be cleaned, the nut 117 on the top of the fixing rod 112 is first removed. At this time, the mounting frame 113 and the top plate 114 have been separated due to the action of the spring 118. At this time, when the dust bag 105 is removed through the top plate 114, the inner wall of the dust bag 105 will come into contact with the scraper 106, and the scraper 106 can scrape off the dust particles on the inner wall of the dust bag 105 to reduce the tediousness of manual cleaning of the dust bag 105. The fallen dust particles will fall into the dust tray 110. After the mounting frame 113 is removed, the dust tray 110 can be removed from the outer wall of the airflow rack 104, and then the collected dust can be cleaned.

[0038] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A vibrating screen with dust collection function, comprising a screen body (101) and a screen cover (102), characterized in that: The bottom of the sieve cover (102) is connected to an airflow disk (103), the top of the sieve cover (102) is provided with an airflow rack (104) penetrating the sieve cover (102), airflow channels are provided inside the airflow disk (103) and the airflow rack (104), a dust collecting bag (105) is provided outside the airflow rack (104), and a spiral scraper (106) is provided on the top of the airflow rack (104); The outer ring surface of the dust collecting bag (105) is connected to a support frame (107), the bottom of the support frame (107) is connected to a baffle ring (108), the bottom of the airflow frame (104) is connected to a lower baffle plate (109), the lower baffle plate (109) is located on the top of the sieve cover (102), the outer ring surface of the airflow frame (104) is slidably connected to a dust tray (110) up and down, the bottom wall of the dust tray (110) is connected to a boss, the top of the boss is connected to a sealing rubber ring (111), and the sealing rubber ring (111) is in contact with the baffle ring (108); The top of the airflow frame (104) is connected to a fixing rod (112), the outside of the fixing rod (112) is provided with a mounting frame (113) and a top plate (114), the mounting frame (113) is located at the bottom of the top plate (114), the scraper (106) is connected to the outer ring surface of the mounting frame (113), the top plate (114) is connected to the top of the support frame (107), the fixing rod (112) is provided with a threaded portion (115) and a clamping portion (116), the bottom of the mounting frame (113) is provided with a groove that cooperates with the clamping portion (116), the top of the threaded portion (115) is threadedly connected with a nut (117), and the nut (117) fixes the top plate (114) and the mounting frame (113) to the fixing rod (112).

2. A vibrating screen with dust collection function according to claim 1, characterized in that: A groove is provided at the top of the mounting frame (113), a spring (118) is connected in the groove, an annular plate (119) is connected to the top of the spring (118), and the upper surface of the annular plate (119) is in contact with the top plate (114).

3. The vibrating screen with dust collection function according to claim 1, characterized in that: A guide plate (120) is arranged inside the airflow rack (104), and a flow dividing portion (121) is arranged on the guide plate (120).

4. A vibrating screen with dust collection function according to claim 3, characterized in that: The guide plate (120) is rotatably connected to a circular tube (122) at its interior, the top of the circular tube (122) is connected to a conical tube (123), the conical tube (123) is located in the diversion portion (121), the top of the conical tube (123) is connected to bristles (124), and the top of the bristles (124) rests against the inner wall of the diversion portion (121).

5. The vibrating screen with dust collection function according to claim 4, characterized in that: The bottom of the circular tube (122) extends into the screen body (101), and the bottom of the circular tube (122) is connected to a retaining net (125).

Images