Abrasive filtering and screening device

Abstract

The utility model discloses an abrasive filtering and screening device, which relates to the technical field of screening devices, and comprises a bottom support, the top of the bottom support is connected with a damping spring, the top of the damping spring is connected with a conical guide plate, the interior of the conical guide plate is connected with a circular cover, the interior of the circular cover is connected with a vibration motor, and the vibration motor is connected with the vibration motor. The bottom of the conical guide plate is connected with a discharging pipe, the top of the conical guide plate is connected with a screen frame through a hoop, and a screening assembly is installed in the screen frame. According to the grinding material filtering and screening device, the conical face is arranged in the conical guide plate, falling materials can be guided to the center position to be gathered together, a large amount of grinding materials can be conveniently and rapidly discharged, the situation that the materials stay in screening equipment for a long time, and grinding particles are abraded is avoided, and the service life of the grinding materials is prolonged. And meanwhile, the screening efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of screening devices, and more particularly to a filtering and screening device for grinding materials. Background Art

[0002] Filtration and screening devices are used to separate materials of varying particle sizes and are widely used in a variety of fields, including chemical processing, mineral processing, pharmaceuticals, food processing, environmental protection, and agriculture. Their primary function is to classify, filter, and remove impurities based on particle size using a screen or filter.

[0003] There are many types of filtering and screening devices, such as vibrating screens, drum screens, and swing screens. Chinese patent application number 202220923063.4 discloses a screen and an ultrasonic vibrating screen using the same. The vibrating screen has an internal hopper that works with a discharge pipe. The hopper is arc-shaped and has the function of guiding the falling material to the edge. When the material moves to the edge, it can be discharged from the discharge pipe on the drying rack. However, the following problems still exist during use:

[0004] 1. Since the material needs to move the edge first and then move to the position of the discharge pipe before it can be discharged, the material stays in the vibrating screen for a long time and the discharge is slow. When used on abrasives, due to the presence of cut particles on the abrasives, too long screening time will cause wear of the particles. Moreover, when there is too much material, the material that can pass through the discharge pipe is limited, and the material will rotate and move for several circles before being discharged, and the screened material cannot be discharged in time.

[0005] 2. When the screening device is screening, the material is irregular in shape and may get stuck on the screen. The blocked material will affect the screening efficiency of the screen and the moving speed of the material.

[0006] Therefore, it is necessary to propose a filtering and screening device for grinding materials to solve the above problems. Utility Model Content

[0007] In view of the above problems, the utility model provides a filtering and screening device for abrasives; the device has the function of accelerating the discharge of materials to reduce the wear of the abrasives, and at the same time has the function of cleaning the screen to prevent the screen holes from being blocked.

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

[0009] A filtering and screening device for abrasives, comprising a bottom support, a shock-absorbing spring connected to the top of the bottom support, a conical guide plate connected to the top of the shock-absorbing spring, a circular cover connected to the interior of the conical guide plate, a vibration motor connected to the interior of the circular cover, a discharge pipe connected to the bottom of the conical guide plate, a screen frame connected to the top of the conical guide plate via a clamp, and a screening assembly installed inside the screen frame;

[0010] The screening assembly includes an elastic frame, a lower guard plate sleeved on the top of the elastic frame, and a screen. The screen is sleeved on the top of the lower guard plate. A support frame is provided at the bottom of the screen. The top of the support frame is connected to a central tube that passes through the screen, an inner ring sleeved outside the central tube, and an outer ring sleeved outside the inner ring. The tops of the inner ring and the outer ring are in contact with the screen. An elastic connecting plate is connected between the outer edge of the support frame and the lower guard plate.

[0011] Preferably, the bottom of the screen frame is provided with a stepped portion located above the lower guard plate, an upper guard plate corresponding to the lower guard plate is connected to the stepped portion, and the screen is located between the upper guard plate and the lower guard plate.

[0012] Preferably, a bending portion is provided on the elastic connecting plate, and the elastic connecting plate is made of elastic material.

[0013] Preferably, a curved portion is provided at the bottom of the elastic frame, the edge of the screen extends into the curved portion, and a clamp for fixing the screen is provided in the curved portion.

[0014] Preferably, an extrusion block cooperating with the clamp is provided in the curved portion of the bottom, and the edge of the screen is located between the extrusion block and the clamp.

[0015] Preferably, a baffle is connected to the top of the central tube, a sliding ring is connected to the center of the screen, and the sliding ring is sleeved on the outer surface of the central tube.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. This device is equipped with a conical guide plate at the bottom of the screen. The conical guide plate is equipped with a conical surface, which can guide the falling materials to the center position and gather them together, so as to facilitate the rapid discharge of the grinding materials in large quantities, avoid the materials staying in the screening equipment for too long, causing the wear of the grinding particles, and at the same time improve the screening efficiency.

[0018] 2. A support frame component is set at the bottom of the device. When screening, the support frame will drive the inner ring and outer ring at the top to impact the screen, thereby impacting the blockages that block the screen holes and increasing the cleaning ability of the screen.

[0019] 3. By arranging a bending portion on the elastic frame, the device can adjust the tension of the screen through the clamp in the bending portion, thereby improving the convenience of adjusting the screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front schematic diagram of the utility model;

[0021] Figure 2 It is a side schematic diagram of the utility model;

[0022] Figure 3 It is a schematic diagram of the screen and upper guard plate structure of the utility model;

[0023] Figure 4 It is a schematic diagram of the elastic frame and screen structure in the utility model;

[0024] Figure 5 It is a schematic diagram of the support frame and elastic connecting plate structure in the utility model.

[0025] Reference numerals:

[0026] 101. Bottom support; 102. Conical guide plate; 103. Round cover; 104. Vibrating motor; 105. Discharge pipe; 106. Screen frame; 107. Elastic frame; 108. Lower guard plate; 109. Screen; 110. Support frame; 111. Center tube; 112. Inner ring; 113. Outer ring; 114. Elastic connecting plate; 115. Step portion; 116. Upper guard plate; 117. Bending portion; 118. Clamp; 119. Extrusion block; 120. Sliding ring; 121. Baffle. DETAILED DESCRIPTION

[0027] 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.

[0028] See also Figure 1-5, a filtering and screening device for abrasive materials, including a bottom support 101, the top of the bottom support 101 is connected to a shock-absorbing spring, the shock-absorbing spring is preferably a variable-pitch spring, the top of the shock-absorbing spring is connected to a conical guide plate 102, the bottom of the conical guide plate 102 is conical, and is used to guide the falling materials toward the center, so that they are discharged from the discharge pipe 105 located at the center, the inside of the conical guide plate 102 is connected to a circular cover 103, the circular cover 103 is used to cover the vibration motor 104, and at the same time plays the role of supporting the vibration motor 104, the top of the circular cover 103 is preferably an arc surface to prevent material from accumulating on the top, and the inside of the circular cover 103 is connected to a vibration Motor 104, the bottom of the conical guide plate 102 is connected to a discharge pipe 105, and the top of the conical guide plate 102 is connected to a screen frame 106 through a hoop. The hoop is used to fix the screen frame 106 on the conical guide plate 102. At the same time, it is also used to connect the screen frame 106 with the screen frame 106. The screening capacity is increased by setting multiple screening components. A discharge pipe is provided on the screen frame 106 to discharge the material that has not passed through the screen 109. A screening component is installed inside the screen frame 106. The material moving toward the center position will quickly accumulate and move toward the discharge pipe 105. Compared with the structure moving toward the outer edge, it can quickly discharge the material.

[0029] When the screen 109 is in use, the mesh may be blocked by materials. The following provides a structure that can impact the screen 109 and discharge the materials blocking the screen 109: Figure 4 and Figure 5The screening assembly includes an elastic frame 107, a lower guard plate 108 and a screen 109 sleeved on the top of the elastic frame 107, and the screen 109 is fixed to the elastic frame 107 by a clamp 118. The screen 109 is sleeved on the top of the lower guard plate 108. A support frame 110 is provided at the bottom of the screen 109. A curved portion 117 is provided at the bottom of the support frame 110. The curved portion 117 can squeeze the elastic frame 107 so that it can be compressed downward. The top of the support frame 110 is connected with a central tube 111 that passes through the screen 109, an inner ring 112 sleeved outside the central tube 111, and an outer ring 113 sleeved outside the inner ring 112. The tops of the inner ring 112 and the outer ring 113 are connected to the screen. 109 is in contact. When the equipment is not in use, the inner ring 112 and the outer ring 113 on the top of the support frame 110 will come into contact with the screen 109. An elastic connecting plate 114 is connected between the outer edge of the support frame 110 and the lower guard plate 108. Preferably, the elastic connecting plate 114 is made of elastic metal. When the vibration motor 104 drives the equipment to vibrate, the vibration will be transmitted to the support frame 110 through the elastic connecting plate 114. Since the elastic connecting plate 114 is made of elastic material, it will drive the support frame 110 to move up and down, and the inner ring 112 and the outer ring 113 on the top of the support frame 110 will impact the screen 109, and then impact the material blocked on the screen 109.

[0030] The screen 109 is usually installed in the screen frame 106, and it may shake during use. The following is a structure to increase the stability of the screen 109: Figure 1 and Figure 4 Specifically, the bottom of the screen frame 106 is provided with a stepped portion 115 located above the lower guard plate 108. When in use, the screen 109 will be clamped between the lower guard plate 108 and the upper guard plate 116. When the screen frame 106 is installed on the conical guide plate 102 through the clamp, the stepped portion 115 is pressed on the top of the elastic frame 107, so that the elastic frame 107 is compressed downward, and the compressed elastic frame 107 will be stuck in the stepped portion 115, which improves the stability of the top screen 109 when in use. An upper guard plate 116 corresponding to the lower guard plate 108 is connected to the stepped portion 115. The upper guard plate 116 is pressed on the top of the screen 109, which can seal the gap at the stepped portion 115 to prevent material from entering the gap. The screen 109 is located between the upper guard plate 116 and the lower guard plate 108.

[0031] The following provides a structure for increasing the vertical movement of the support frame 110: Figure 4 Specifically, a bending portion is provided on the elastic connecting plate 114. Through the deformation of the bending portion, the amplitude of the up and down movement of the support frame 110 can be increased. The elastic connecting plate 114 is made of an elastic material, preferably an elastic metal.

[0032] When in use, the tension of the screen 109 needs to be adjusted to improve the efficiency of screening. The following provides a structure for adjusting the screen 109: Figure 4 Specifically, a curved portion 117 is provided at the bottom of the elastic frame 107. When the clamp 118 is tightened, the top screen 109 can be pulled, thereby tightening it. The edge of the screen 109 extends into the curved portion 117. A clamp 118 is provided in the curved portion 117 to fix the screen 109. The clamp 118 is an existing device and will not be described in detail here.

[0033] The following provides a structure for fixing the outer edge of the screen 109 to facilitate adjusting the tightness of the screen 109: Figure 4 Specifically, an extrusion block 119 that cooperates with the clamp 118 is provided in the curved portion 117 at the bottom. When the clamp 118 is tightened, the screen 109 will be pressed against the extrusion block 119, thereby fixing the screen 109. The tension of the screen 109 can then be adjusted by the clamp 118 at the top, and the edge of the screen 109 is located between the extrusion block 119 and the clamp 118.

[0034] When the grinding material is poured onto the screen 109, the material will impact the surface of the screen 109. The following is a structure that can reduce the impact of the material on the screen surface: Figures 3 to 5 Specifically, a baffle 121 is connected to the top of the central tube 111, and the top of the baffle 121 is provided with an arc surface. When material falls on the baffle 121, the material will move around, which can disperse the impact force of the material when it falls to the surroundings, reducing the impact of the material on a single position. It should be noted that when the material falls on the baffle 121, the bottom support frame 110 will move downward, and then when the support frame 110 rebounds upward, it will increase the impact force on the screen 109. A sliding ring 120 is connected to the center of the screen 109, and the sliding ring 120 is sleeved on the outer surface of the central tube 111.

[0035] In this embodiment, the vibration motor 104 drives the entire equipment to vibrate. When the grinding material is poured onto the baffle 121, the material will move to the surroundings from the inclined surface on the baffle 121, and then fall on the screen 109. After passing through the screen 109, the material will fall on the conical guide plate 102. The conical guide plate 102 guides the fallen material to the middle position and then discharges it from the discharge pipe 105. The material that has not passed through the screen 109 will be discharged from the discharge port on the screen frame 106.

[0036] 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 grinding material filtering and screening device, comprising a bottom support (101), the top of the bottom support (101) being connected to a shock-absorbing spring, characterized in that: The top of the shock-absorbing spring is connected to a conical guide plate (102), the interior of the conical guide plate (102) is connected to a circular cover (103), the interior of the circular cover (103) is connected to a vibration motor (104), the bottom of the conical guide plate (102) is connected to a discharge pipe (105), the top of the conical guide plate (102) is connected to a screen frame (106) through a hoop, and a screening assembly is installed inside the screen frame (106); The screening assembly comprises an elastic frame (107), a lower guard plate (108) sleeved on the top of the elastic frame (107), and a screen (109); the screen (109) is sleeved on the top of the lower guard plate (108); a support frame (110) is provided at the bottom of the screen (109); the top of the support frame (110) is connected with a central tube (111) penetrating the screen (109), an inner ring (112) sleeved outside the central tube (111), and an outer ring (113) sleeved outside the inner ring (112); the tops of the inner ring (112) and the outer ring (113) are in contact with the screen (109); and an elastic connecting plate (114) is connected between the outer edge of the support frame (110) and the lower guard plate (108).

2. The grinding material filtering and screening device according to claim 1, characterized in that: The bottom of the screen frame (106) is provided with a stepped portion (115) located above the lower guard plate (108); an upper guard plate (116) corresponding to the lower guard plate (108) is connected to the stepped portion (115); and the screen (109) is located between the upper guard plate (116) and the lower guard plate (108).

3. The grinding material filtering and screening device according to claim 2, characterized in that: A bending portion is provided on the elastic connecting plate (114), and the elastic connecting plate (114) is made of elastic material.

4. The grinding material filtering and screening device according to claim 3, characterized in that: A curved portion (117) is provided at the bottom of the elastic frame (107), an edge of the screen (109) extends into the curved portion (117), and a clamp (118) for fixing the screen (109) is provided in the curved portion (117).

5. The grinding material filtering and screening device according to claim 4, characterized in that: An extrusion block (119) matched with a clamp (118) is provided in the curved portion (117) at the bottom, and the edge of the screen (109) is located between the extrusion block (119) and the clamp (118).

6. The grinding material filtering and screening device according to claim 1, characterized in that: The top of the central tube (111) is connected to a baffle (121), the center of the screen (109) is connected to a sliding ring (120), and the sliding ring (120) is sleeved on the outer surface of the central tube (111).

Images