Raw material screening equipment for aerated concrete blocks

Abstract

The utility model relates to the technical field of aerated concrete block production, and discloses aerated concrete block raw material screening equipment which comprises a rack, a screening device and a driving device. The screening device comprises a frame, a screen and a locking piece. The frame is rotationally connected to the rack; the screen is made of flexible materials so that the screen can be unfolded to form a plane or define a screen drum arranged on the frame in a sleeving mode. The locking piece is arranged on the outer wall of the screen drum in a sleeving mode and used for limiting unfolding of the screen drum so that the screen drum can be located on the frame. The locking piece is detachably arranged on the screen drum, and when the locking piece is separated from the screen drum, the screen drum can be separated from the frame; the driving device is installed on the rack and used for driving the frame to rotate. The adaptability of the screening equipment can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of aerated concrete block production, and in particular to a raw material screening device for aerated concrete blocks. Background Art

[0002] At present, the concrete slurry required for the production of concrete aerated bricks is relatively fine. In order to meet the standards required for the production of concrete slurry, there are two ways to grind and screen the raw materials. For the grinding method, a ball mill is used to grind the raw materials, but this method consumes a lot of electricity. For the screening method, screening equipment is used to filter and screen the raw materials so that the screened raw materials can meet the standards of the raw materials.

[0003] Referring to the Chinese patent document with publication number CN208494874U, a drum-type sand screening machine is disclosed, including a frame, a drum, a receiving hopper and a motor. The drum is rotatably connected to the frame, and the motor drives the drum to rotate. The drum includes a bracket and a screen installed on the bracket. The raw materials in the drum are filtered through the screen, and the screened raw materials fall into the receiving hopper.

[0004] It can be seen from the above-mentioned related technologies that existing screening equipment usually filters raw materials through a screen, but the mesh size of the screen is fixed, resulting in poor adaptability of the screening equipment. Different screening equipment must be used when filtering raw materials of different sizes, which not only has high production costs but also takes up more production space. Utility Model Content

[0005] In order to improve the adaptability of screening equipment, the present application provides a raw material screening equipment for aerated concrete blocks.

[0006] The present application provides a raw material screening device for aerated concrete blocks, which adopts the following technical solution:

[0007] A raw material screening device for aerated concrete blocks, comprising: a frame, a screening device and a driving device;

[0008] The screening device comprises a frame, a screen and a locking member; the frame is rotatably connected to the frame; the screen is made of a flexible material so that the screen can be unfolded into a plane or enclosed into a screen cylinder sleeved on the frame; the locking member is sleeved on the outer wall of the screen cylinder to limit the unfolding of the screen cylinder so that the screen cylinder is positioned on the frame; and the locking member is detachable from the screen cylinder, and when the locking member is separated from the screen cylinder, the screen cylinder can be separated from the frame;

[0009] The driving device is installed on the frame and is used to drive the frame to rotate.

[0010] By adopting the above technical solution, a screen made of flexible material can be flexibly unfolded into a plane or enclosed into a screen cylinder mounted on a frame. Combined with the detachable locking piece, the screen can be replaced as needed, so that the mesh size of the screen can adapt to the required screening size, thereby improving the adaptability and flexibility of the screening equipment, reducing production costs and reducing the occupation of production space.

[0011] Optionally, the frame has a feed port at one end and a discharge port at the other end, and a first guide strip obliquely extending from the feed port to the discharge port is provided on an inner wall of the frame.

[0012] By adopting the above technical solution, the first guide strip can effectively guide the raw material to flow from the feed port to the discharge port, reduce the retention and blockage of the raw material during the screening process, and improve the screening efficiency.

[0013] Optionally, the frame is provided with a material guide hopper at the bottom of the frame for collecting the raw materials screened by the screen drum.

[0014] By adopting the above technical solution, the raw materials screened by the screen drum can be collected and concentrated by the guide hopper arranged at the lower part of the frame, which is convenient for subsequent processing and utilization.

[0015] Optionally, the frame includes a hollow section and a mounting section that are coaxially arranged, the hollow section is hollow and is used for the screen drum to be mounted, and the mounting section is used to cooperate with the driving device.

[0016] By adopting the above technical solution, the hollow section and the installation section design of the frame enable the screen drum to be conveniently mounted on the hollow section, and the installation section cooperates with the driving device to achieve stable rotation of the screening device.

[0017] Optionally, the driving device includes a gear ring, a gear and a rotation source; the gear ring is coaxially sleeved on the mounting section; the gear is meshed with the gear ring, the rotation source is installed on the frame, and the output end of the rotation source is connected to the gear to drive the gear to rotate.

[0018] Optionally, the screening device further includes an inner cylinder and connecting ribs; the inner cylinder is connected to the frame via the connecting ribs, and the inner cylinder has a filtering gap connecting the inner cylinder and the frame, and the size of the filtering gap is larger than the mesh size of the sieve cylinder.

[0019] By adopting the above technical solution, the raw materials will first undergo preliminary screening in the inner cylinder before entering the screen cylinder to filter out larger particles, thereby improving the screening accuracy and efficiency.

[0020] Optionally, a second guide bar is provided on the inner wall of the inner cylinder, and the second guide bar extends obliquely to guide the raw material to the discharge position.

[0021] By adopting the above technical solution, the second guide strip on the inner wall of the inner cylinder can guide the raw material to flow in the inner cylinder, so that the raw material can flow smoothly from the feed port to the discharge port.

[0022] Optionally, the inner tube includes a connecting ring and ribs, the connecting ring is connected to the connecting rib and has two ribs, the two ends of the rib that are far away from each other are respectively connected to the two connecting rings, and there are multiple ribs, and the multiple ribs are evenly spaced along the circumference of the connecting ring, and the filtering gap is formed between two adjacent ribs.

[0023] Optionally, the ribs are detachably connected to the connecting ring.

[0024] By adopting the above technical solution and disassembling and assembling the ribs, the size of the filtering gap of the inner tube can be adjusted as needed, thereby further enhancing the adaptability and flexibility of the screening equipment.

[0025] Optionally, a walking platform and a shielding plate are provided on the frame, the walking platform is close to the top of the frame, and the shielding plate is installed above the frame to shield the frame.

[0026] By adopting the above technical solution, the protection effect of the screening device is improved by the walking platform and the shielding plate arranged on the frame, making it less susceptible to weather influences.

[0027] In summary, the present application includes at least one of the following beneficial effects:

[0028] 1. By using a flexible screen, the screen can be unfolded into a plane or enclosed into a screen cylinder mounted on the frame, and the screen cylinder is positioned with a locking piece, so that the screen can be disassembled, which makes it easier to replace the screen later without replacing the entire screening equipment, reducing production costs and occupied production space;

[0029] 2. By providing a frame with a hollow section and a mounting section, and a driving device that cooperates with a gear ring, a gear and a rotation source, a rotatable setting of the screening device is achieved, thereby improving the screening effect and screening efficiency;

[0030] 3. By arranging an inner cylinder in the frame, and connecting the inner cylinder to the frame through connecting ribs, and forming a filtering gap between the inner cylinder and the frame, it is possible to first filter larger-sized raw materials in the inner cylinder, and then further screen the raw materials through the screen, so as to improve the screening effect and increase the service life of the screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of Embodiment 1 of the present application;

[0032] Figure 2 It is a schematic diagram of the structure of the cooperation between the frame and the driving mechanism in the first embodiment of the present application;

[0033] Figure 3 It is a schematic diagram of the explosion structure of the frame and the screen drum in the first embodiment of the present application;

[0034] Figure 4 yes Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0035] Figure 5 It is a front view of the frame and the inner tube in the first embodiment of the present application;

[0036] Figure 6 It is a structural diagram of Embodiment 2 of the present application;

[0037] Figure 7 yes Figure 6 Schematic diagram of the enlarged structure at point B in the middle.

[0038] Explanation of the reference numerals: 1. frame; 2. frame; 21. hollow section; 22. mounting section; 3. screen; 4. locking piece; 41. clamp; 42. screw; 43. nut; 5. screen cylinder; 6. feed inlet; 7. discharge outlet; 8. first guide strip; 9. guide hopper; 10. gear ring; 11. gear; 12. rotation source; 13. inner cylinder; 131. connecting ring; 132. rib; 14. connecting rib; 15. filter gap; 16. second guide strip; 17. walking platform; 18. shielding plate; 19. baffle. DETAILED DESCRIPTION

[0039] The following is combined with Figure 1-7 This application is described in further detail.

[0040] Embodiment 1:

[0041] The present application embodiment discloses a raw material screening device for aerated concrete blocks. Figure 1 The raw material screening equipment for aerated concrete blocks includes a frame 1, a screening device and a driving device. The screening device rotates on the frame 1 to screen the raw materials. The driving device is installed on the frame 1 and cooperates with the screening device to drive the screening device to rotate.

[0042] Reference Figure 1 and Figure 2 , wherein the screening device comprises a frame 2, a screen 3 and a locking member 4. The frame 2 is rotatably connected to the frame 1, and the two ends of the frame 2 that are far from each other are a feed port 6 and a discharge port 7, respectively. The raw material enters the frame 2 from the feed port 6, and is removed from the discharge port 7 after screening, and one end of the feed port 6 of the frame 2 is higher than one end of the discharge port 7.

[0043] Reference Figure 1 and Figure 3 The frame 2 includes a hollow section 21 and a mounting section 22 which are coaxially arranged and connected. The hollow section 21 and the mounting section 22 are both cylindrical with two ends connected. At the same time, the hollow section 21 is hollow. The mounting section 22 has two sections, and the two mounting sections 22 are coaxially fixed at the opposite ends of the hollow section 21. The frame 2 is rotatably connected to the frame 1 through the mounting section 22 and the bearing seat.

[0044] The screen 3 is made of a high-strength, wear-resistant flexible material, such as nylon or polyester fiber, and can be unfolded into a plane or bent into a cylinder. When the screen 3 is unfolded into a plane, it is in the shape of a square sheet. When it is bent into a cylinder, it forms a screen cylinder 5 sleeved on the hollow section 21, and the hollow section 21 supports the screen cylinder 5. When the screen cylinder 5 cooperates with the hollow section 21, the raw material is first screened in the hollow part of the hollow section 21 and then on the screen 3. In order to show it clearly, the mesh of the screen 3 is not shown in the figure.

[0045] Reference Figure 2 and Figure 4 The locking member 4 is sleeved on the outer wall of the sieve drum 5 to limit the expansion of the sieve drum 5 so that it can be stably positioned on the frame 2. When the mesh size of the sieve drum 5 needs to be adjusted, the locking member 4 is separated from the sieve drum 5. At this time, the sieve drum 5 can be separated from the hollow section 21 and then replaced with a sieve drum 5 with a suitable mesh size.

[0046] Specifically, the locking member 4 includes a clamp 41, a screw 42 and a nut 43. The clamp 41 is sleeved on the outer wall of the screen drum 5. The clamp 41 has an opening and has a certain elasticity so as to be able to stir up or loosen the screen drum 5. The clamp 41 has connecting pieces on both sides of its opening. The screw 42 passes through the connecting pieces on both sides of the opening of the clamp 41 at the same time. The nut 43 is threadedly sleeved on both ends of the screw 42 and abuts against the opposite sides of the two connecting pieces respectively. The clamp 41 is tightened to reduce the diameter by tightening the bolt, so that the clamp 41 tightens the screen drum 5 on the hollow section 21. Removing the screw 42 from the clamp 41 can make the clamp 41 loosen the screen drum 5 and remove the clamp 41, so that the screen drum 5 can be removed for replacement.

[0047] Reference Figure 1 and Figure 3 When the frame 2 rotates, the raw materials in the frame 2 are disturbed, so that the qualified raw materials can pass through the screen drum 5 and fall out of the screen drum 5. In order to collect the screened raw materials, the frame 1 is provided with a guide hopper 9 at the part opposite to the hollow section 21. The guide hopper 9 is located below the hollow section 21 and has a collection cavity facing the hollow section 21. The guide hopper 9 has baffles 19 extending upward to the side opposite to the hollow section 21 on both sides to further guide the screened raw materials into the guide hopper 9.

[0048] Refer to 2 and Figure 3Furthermore, in order to make the raw material flow more smoothly from the feed port 6 to the discharge port 7, a first guide bar 8 extending obliquely from the feed port 6 to the discharge port 7 is provided on the inner wall of the hollow section 21. The first guide bar 8 can guide the raw material to flow along its oblique direction, reduce the retention and blockage of the raw material during the screening process, and thus improve the screening efficiency.

[0049] Reference Figure 1 and Figure 2 Furthermore, the driving device includes a gear ring 10, a gear 11 and a rotation source 12. The gear ring 10 is coaxially sleeved and fixed on the mounting section 22 at one end of the frame 2. The rotation source 12 can be a power device such as a motor, installed on the frame 1, and connected to the gear 11 through the output end to achieve power transmission. The gear 11 is meshed with the gear ring 10, and the gear 11 is driven to rotate by the rotation source 12, thereby driving the gear ring 10 and the entire frame 2 to rotate.

[0050] Reference Figure 2 and Figure 5 Furthermore, in order to enhance the screening effect, the screening device further includes an inner cylinder 13 and a connecting rib 14. The inner cylinder 13 is cylindrical and has an outer diameter smaller than the inner diameter of the frame 2. The inner cylinder 13 is coaxially connected to the frame 2 through the connecting rib 14, and forms a certain gap with the screen cylinder 5. The inner cylinder 13 itself forms a filtering gap 15 connecting the inner and outer sides of the inner cylinder 13, and the size of the filtering gap 15 is larger than the size of the mesh of the screen cylinder 5.

[0051] When the raw materials are screened, they first enter the inner cylinder 13 from the feed port 6 of the frame 2. Larger particles cannot pass through the filtering gap 15 and are intercepted in the inner cylinder 13. The remaining raw materials enter between the inner cylinder 13 and the screen 3 and are further screened by the screen cylinder 5, thereby achieving a more detailed screening effect.

[0052] Furthermore, the inner cylinder 13 includes a connecting ring 131 and ribs 132, both of which are made of steel. The connecting ring 131 is annular and has two, and the two connecting rings 131 are coaxially arranged. There are multiple ribs 132, and the two ends of the ribs 132 that are far away from each other are respectively welded to the two connecting rings 131, and the multiple ribs 132 are evenly spaced and distributed along the circumference of the connecting ring 131 and are parallel to each other, so that the filtering gap 15 is formed between two adjacent ribs 132.

[0053] Furthermore, in order to guide the flow of the raw materials in the inner cylinder 13, a second guide bar 16 is fixed on the side of the ribs 132 facing the inner cavity of the inner cylinder 13. The second guide bar 16 extends obliquely from the feed port 6 to the discharge port 7, guiding the raw materials to move from the feed port 6 to the discharge port 7 in the inner cylinder 13.

[0054] Reference Figure 1 and Figure 3In addition, a walking platform 17 and a shielding plate 18 are also provided on the frame 1. The walking platform 17 is set up on the opposite sides of the frame 2 and close to the top of the frame 2, providing a convenient inspection and maintenance channel for operators. A ladder (not shown in the figure) extending from the ground to the walking platform 17 is installed on the ground, and the open end of the clamp 41 is close to the walking platform 17 to facilitate the operation of the clamp 41. The shielding plate 18 is set up just above the frame 2 to shield the frame 2 and improve the protection effect of the screening device, so that the screening effect of the screening device is not easily affected by the weather.

[0055] The implementation principle of the raw material screening device for aerated concrete blocks in the embodiment of the present application is as follows: by using a flexible screen 3, it can be unfolded into a plane or enclosed into a screen cylinder 5 as required. When the screen 3 needs to be adjusted, it is only necessary to separate the locking piece 4 from the screen cylinder 5, and then replace the screen cylinder 5 with the required mesh size. And the cooperation between the inner cylinder 13 and the screen 3 realizes secondary filtration.

[0056] Embodiment 2:

[0057] The difference between the embodiment of the present application and the first embodiment is that the installation method of the connecting ring 131 and the rib 132 is different. Figure 6 and Figure 7 In this embodiment, the ribs 132 are detachably connected to the connecting ring 131 by bolts, and the bolt rod can pass through the ribs 132 and then be threadedly connected to the connecting ring 131. The number of ribs 132 can be adjusted through the detachable connection of the ribs 132 to adjust the size of the filter gap 15 formed between two adjacent ribs 132, so that when screening different raw materials, the size of the filter gap 15 can be adjusted as needed, thereby further improving the adaptability of the screening equipment.

[0058] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A raw material screening device for aerated concrete blocks, characterized in that: include: A frame (1), a screening device and a driving device; The screening device comprises a frame (2), a screen (3) and a locking member (4); the frame (2) is rotatably connected to the frame (1); the screen (3) is made of a flexible material so that the screen (3) can be unfolded into a plane or enclosed into a screen cylinder (5) sleeved on the frame (2); the locking member (4) is sleeved on the outer wall of the screen cylinder (5) to limit the unfolding of the screen cylinder (5) so that the screen cylinder (5) is positioned on the frame (2); and the locking member (4) is detachable from the screen cylinder (5); when the locking member (4) is separated from the screen cylinder (5), the screen cylinder (5) can be separated from the frame (2); The driving device is mounted on the frame (1) and is used to drive the frame (2) to rotate.

2. The raw material screening equipment for aerated concrete blocks according to claim 1 is characterized in that: The frame (2) has a feed inlet (6) at one end and a discharge outlet (7) at the other end, and a first guide strip (8) extending obliquely from the feed inlet (6) toward the discharge outlet (7) is provided on the inner wall of the frame (2).

3. The raw material screening equipment for aerated concrete blocks according to claim 1 is characterized in that: The frame (1) is provided with a material guide hopper (9) at the bottom of the frame (2) for collecting the raw materials after being screened by the screen drum (5).

4. The raw material screening equipment for aerated concrete blocks according to claim 1 is characterized in that: The frame (2) comprises a hollow section (21) and a mounting section (22) which are coaxially arranged; the hollow section (21) is hollow and is used for the screen drum (5) to be sleeved thereon; and the mounting section (22) is used to cooperate with the driving device.

5. The raw material screening equipment for aerated concrete blocks according to claim 4 is characterized in that: The driving device comprises a gear ring (10), a gear (11) and a rotation source (12); the gear ring (10) is coaxially sleeved on the mounting section (22); the gear (11) is meshed with the gear ring (10); the rotation source (12) is mounted on the frame (1), and an output end of the rotation source (12) is connected to the gear (11) to drive the gear (11) to rotate.

6. A raw material screening device for aerated concrete blocks according to any one of claims 1 to 5, characterized in that: The screening device further comprises an inner cylinder (13) and connecting ribs (14); the inner cylinder (13) is connected to the frame (2) via the connecting ribs (14), and the inner cylinder (13) has a filtering gap (15) connecting the inner cylinder (13) and the frame (2), and the size of the filtering gap (15) is larger than the mesh size of the screen cylinder (5).

7. The raw material screening equipment for aerated concrete blocks according to claim 6 is characterized in that: A second guide bar (16) is provided on the inner wall of the inner cylinder (13), and the second guide bar (16) extends obliquely to guide the raw material to the discharge position.

8. The raw material screening equipment for aerated concrete blocks according to claim 6, characterized in that: The inner cylinder (13) comprises a connecting ring (131) and ribs (132); the connecting ring (131) is connected to the connecting rib (14) and has two ribs; two ends of the rib (132) that are far from each other are respectively connected to the two connecting rings (131); and there are a plurality of ribs (132); the plurality of ribs (132) are evenly spaced and distributed along the circumference of the connecting ring (131); and the filtering gap is formed between two adjacent ribs (132).

9. The raw material screening equipment for aerated concrete blocks according to claim 8, characterized in that: The ribs (132) are detachably connected to the connecting ring (131).

10. The raw material screening equipment for aerated concrete blocks according to claim 1, characterized in that: The frame (1) is provided with a walking platform (17) and a shielding plate (18); the walking platform (17) is close to the top of the frame (2); and the shielding plate (18) is erected above the frame (2) to shield the frame (2).

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