Slaked lime powder screening device

Abstract

The invention is suitable for the technical field of screening devices, and provides a slaked lime powder screening device which comprises a screening box, a feeding groove and a discharging groove are formed in one side of the screening box, the discharging groove is formed below the feeding groove, a discharging groove is formed in the other side of the screening box, and a screening frame is arranged in the screening box in a sliding mode. A blocking part used for automatically blocking the material groove is arranged between the top of the screening frame and the screening box, a through hole is formed in the top of the screening box, a driving part is fixedly arranged at the position of the through hole in the top of the screening box, and a screen is fixedly connected to the top of the screening frame. By arranging the blocking assembly, when too much caked lime powder is accumulated on the surface of the screen and influences normal screening of the screen, a blocking plate can automatically block the feeding groove, so that the situation that the lime powder continues to be fed and falls into the surface of the screen is avoided, and follow-up cleaning of the caked lime powder on the surface of the screen cannot be influenced; meanwhile, the structure is simple and reliable.

Description

Technical Field

[0001] The present invention belongs to the technical field of screening devices, and particularly relates to a hydrated lime powder screening device. Background Art

[0002] Calcium hydroxide, commonly known as hydrated lime or slaked lime, is a white powdery solid slightly soluble in water, with the chemical formula Ca(OH)₂. Its solubility at 20°C is 1.65 g / L, and its aqueous solution is often called lime water. Calcium hydroxide is a strong base with the ability to sterilize and preserve, and it has a corrosive effect on the skin and fabrics. Calcium hydroxide has a wide range of applications in industry and is often used in the manufacture of bleaching powder, disinfection insecticides, and building materials, etc. If the hydrated lime powder gets damp during storage, the damp part of the hydrated lime powder will form lumps, so it is necessary to screen the hydrated lime powder through a screening device to separate the lumped hydrated lime powder from the undamaged hydrated lime powder.

[0003] Chinese invention patent with the publication number CN112620073A discloses a lime powder screening and processing system, including a screening box and a box cover installed at the upper end of the screening box. A strip-shaped opening is provided on one side of the upper surface of the box cover away from the feeding hopper. A rectangular sleeve is provided above the strip-shaped opening. A movable plate is slidably installed in the rectangular sleeve. Rubber frames that fit the inner surface of the rectangular sleeve are installed on the peripheral surfaces of the movable plate. A cylindrical body communicating with the rectangular sleeve is installed at the upper part of the side of the rectangular sleeve facing the feeding hopper. A piston is slidably installed in the cylindrical body. One end of the piston facing away from the rectangular sleeve is fixedly connected to a movable rod. The end of the movable rod away from the piston extends outside the cylindrical body and is fixedly connected to a plug board.

[0004] However, the above patent has the following deficiencies:

[0005] 1. When the lumped lime powder accumulates and blocks at the first discharge port in the above patent, as the lumped lime powder at the first discharge port increases, part of the lumped lime powder enters the rectangular sleeve through the strip-shaped opening and forces the movable plate to drive the rubber frame to move upward. Thus, the movable plate presses the air inside the rectangular sleeve into the cylindrical body. The increase in gas in the cylindrical body forces the piston to move away from the rectangular sleeve. While the piston is moving, it drives the plug board to move through the movable rod. Furthermore, the plug board is inserted into the feeding hopper through the slot to achieve the purpose of blocking the feeding hopper. However, the structure for blocking the feeding hopper in the above patent is complex, and when the airtightness of the cylindrical body decreases and gas leaks after the device has been used for a long time, it is very difficult for the plug board to completely seal the feeding hopper, resulting in lime powder leakage.

[0006] 2. When the first discharge port is blocked in the above patent, there is a lack of a cleaning structure for the blocked lime powder lumps, which will increase the cleaning time of the lime powder and thus reduce the screening efficiency of the device for the lime powder. Summary of the Invention

[0007] The present invention provides a screening device for hydrated lime powder, aiming to solve the problems mentioned in the above background technology. The structure of the feeding hopper blocked by the above patent is complex. And when the airtightness inside the cylinder decreases and gas leakage occurs after the device has been used for a long time, it is very difficult for the plug board to completely seal the feeding hopper, resulting in the leakage of lime powder. In addition, the above patent lacks a cleaning structure for the blocked lime powder agglomerates, which will increase the cleaning time of the lime powder, and further reduce the screening efficiency of the device for the lime powder.

[0008] The present invention is implemented as follows. A screening device for hydrated lime powder includes a screening box. One side of the screening box is provided with a feeding slot and a discharging slot. The discharging slot is arranged below the feeding slot. The other side of the screening box is provided with a discharging trough.

[0009] A screening frame is slidably arranged inside the screening box. A blocking component is arranged between the top of the screening frame and the screening box for automatically blocking the feeding slot.

[0010] A through hole is opened at the top of the screening box, and a driving component is fixedly arranged at the position of the through hole at the top of the screening box.

[0011] Preferably, a screen is fixedly connected to the top of the screening frame. The screen is inclined. A vibration motor is fixedly connected to the inner wall of the screening frame.

[0012] By starting the vibration motor, the screening frame and the screen can be driven to vibrate, thereby accelerating the screening efficiency of the lime powder on the surface of the screen.

[0013] When the screen moves to a position matching the discharging trough, the inclined screen can facilitate the agglomerated lime powder on its surface to roll down and be discharged through the discharging trough.

[0014] Preferably, the blocking component includes a blocking structure and an automatic adjustment structure. The blocking structure is used to seal the feeding slot, and the automatic adjustment structure is used to automatically adjust the height of the screening frame.

[0015] Preferably, the blocking structure includes a blocking plate. The bottom of the blocking plate is fixedly connected to the screening frame. The blocking plate is in fit with the inner wall of the screening box. A through groove is opened at the bottom of the blocking plate, and the through groove matches the feeding slot.

[0016] When the through groove on the surface of the blocking plate matches the feeding slot, the lime powder can reach the surface of the screen through the feeding slot and the through groove. At this time, the lime powder can be screened by the screen. When the through groove on the surface of the blocking plate is misaligned with the feeding slot and the blocking plate seals the feeding slot, the lime powder cannot reach the surface of the screen through the feeding slot, thus facilitating the subsequent cleaning of the agglomerated lime powder on the surface of the screen.

[0017] Preferably, the automatic adjustment structure includes a fixing frame, the side wall of the fixing frame is fixedly connected to the blocking plate, and a connecting rod is fixedly connected between the fixing frame and the screening frame;

[0018] A limiting rod is disposed through the middle of the fixing frame, the top of the limiting rod is fixedly connected to the inner wall of the screening box, the bottom of the limiting rod is fixedly connected with a limiting block, a spring is sleeved on the outer periphery of the limiting rod, the bottom of the spring abuts against the limiting block, and the top of the spring abuts against the fixing frame. The fixing frame is slidably connected to the limiting rod;

[0019] When the lumped lime powder on the surface of the sieve mesh accumulates too much, it will affect the screening of the lime powder by the sieve mesh. At the same time, when the amount of the lumped lime powder accumulated is too large, the overall weight of the sieve mesh and the limiting frame will increase. At this time, under the action of gravity, the limiting frame will drive the fixing frame to move downward through the connecting rod, and at the same time, the fixing frame will squeeze and compress the spring;

[0020] At the same time, the downward movement of the limiting frame will drive the blocking plate to move downward. At this time, the through groove at the bottom of the blocking plate will be misaligned with the feed groove, and at the same time, the blocking plate will seal the feed groove, so that the lime powder cannot reach the surface of the sieve mesh through the feed groove, thus facilitating the subsequent cleaning of the lumped lime powder on the surface of the sieve mesh.

[0021] Preferably, the driving component includes a mounting frame, the mounting frame is in an inverted "U" shape, the bottom of the mounting frame is fixedly connected to the screening box, an electric push rod is arranged inside the mounting frame, the top of the electric push rod is fixedly connected to the inner wall of the mounting frame, the output end of the electric push rod matches the through hole, and the output end of the electric push rod matches the fixing frame;

[0022] When it is necessary to clean the lumped lime powder on the surface of the sieve mesh, by starting the electric push rod, the output end of the electric push rod can move downward through the through groove. When the output end of the electric push rod contacts the top of the fixing frame, the output end of the electric push rod can drive the screening frame and the sieve mesh to move downward through the fixing frame and the connecting rod until the sieve mesh matches the discharge groove. At this time, the lumped lime powder on the surface of the sieve mesh can roll off the surface of the sieve mesh and be discharged through the discharge groove, so as to complete the cleaning of the lumped lime powder on the surface of the sieve mesh;

[0023] Then, the electric push rod is reset, and at the same time, no lumped lime powder accumulates on the surface of the sieve mesh, so that the weight of the sieve mesh and the limiting frame is reduced. At this time, the compressed spring will rebound, driving the limiting frame, the sieve mesh and the blocking plate to reset. At this time, the lime powder can normally feed into the screening box through the feed groove and the through groove.

[0024] Preferably, a feed bin is provided on one side of the feed chute, the side wall of the feed bin is fixedly connected to the outer wall of the screening box, a discharge hopper is provided on one side of the discharge chute, the side wall of the discharge hopper is fixedly connected to the outer wall of the screening box, a guiding plate is provided on the other side of the discharge chute, the outer periphery of the guiding plate is fixedly connected to the inner wall of the screening box, a discharge hopper is provided on one side of the discharge trough, and the side wall of the discharge hopper is fixedly connected to the outer wall of the screening box;

[0025] By providing a feed bin, it is convenient to add lime powder into the screening bin through the feed chute. By providing an inclined guiding plate, the screened lime powder can be guided to discharge through the discharge hopper. By providing a discharge hopper, the caked lime powder discharged from the discharge trough can be limited, facilitating the subsequent collection of the caked lime powder.

[0026] Compared with the prior art, the beneficial effects of the present invention are as follows: A hydrated lime powder screening device of the present invention:

[0027] 1. By providing a blocking assembly, when too much caked lime powder accumulates on the surface of the sieve mesh and affects the normal screening of the sieve mesh, the blocking plate will automatically block the feed chute, thereby preventing the lime powder from continuing to feed and falling onto the surface of the sieve mesh, and thus not affecting the subsequent cleaning of the caked lime powder on the surface of the sieve mesh. At the same time, the above structure is simple and reliable.

[0028] 2. By providing a driving component, the sieve mesh can be driven to move by an electric push rod, and the position of the sieve mesh can be matched with that of the discharge trough, so that the caked lime powder accumulated on the surface of the sieve mesh can be quickly discharged through the discharge trough, facilitating the cleaning of the caked lime powder on the surface of the sieve mesh. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 is a cross-sectional view of the present invention;

[0031] Figure 3 is a schematic cross-sectional structure diagram of the screening box of the present invention;

[0032] Figure 4 is a schematic diagram of the installation position of the blocking structure of the present invention;

[0033] Figure 5 is a schematic diagram of the installation position of the vibration motor of the present invention;

[0034] Figure 6 is of the present invention Figure 3 A-part enlarged structure diagram.

[0035] In the figure:

[0036] 1. Screening box; 11. Feed chute; 12. Discharge chute; 13. Discharge trough; 14. Through hole;

[0037] 2. Screening frame; 21. Screen; 22. Vibration motor;

[0038] 3. Sealing component;

[0039] 31. Sealing structure; 311. Sealing plate; 312. Through groove;

[0040] 32. Automatic adjustment structure; 321. Fixed frame; 322. Connecting rod; 323. Limiting rod; 324. Limiting block; 325. Spring;

[0041] 4. Driving component; 41. Mounting frame; 42. Electric push rod;

[0042] 5. Feed bin; 6. Discharge hopper; 7. Guide plate; 8. Discharge chute. Detailed implementation mode

[0043] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention.

[0044] Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents the selected embodiments of the present invention.

[0045] All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0046] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0047] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable 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, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] Please refer to Figures 1-6 , the present invention provides a technical solution: a hydrated lime powder screening device, including a screening box 1. One side of the screening box 1 is provided with a feeding groove 11 and a discharging groove 12. The discharging groove 12 is arranged below the feeding groove 11. The other side of the screening box 1 is provided with a discharging slot 13;

[0049] A screening frame 2 is slidably arranged inside the screening box 1. A blocking component 3 for automatically blocking the feeding groove is arranged between the top of the screening frame 2 and the screening box 1;

[0050] A through hole 14 is opened at the top of the screening box 1, and a driving component 4 is fixedly arranged at the position of the through hole 14 at the top of the screening box 1.

[0051] Furthermore, a screen mesh 21 is fixedly connected to the top of the screening frame 2. The screen mesh 21 is inclined, and a vibration motor 22 is fixedly connected to the inner wall of the screening frame 2.

[0052] Furthermore, the blocking component 3 includes a blocking structure 31 and an automatic adjustment structure 32. The blocking structure 31 is used to seal the feeding groove 11, and the automatic adjustment structure 32 is used to automatically adjust the height of the screening frame 2.

[0053] Furthermore, the blocking structure 31 includes a blocking plate 311. The bottom of the blocking plate 311 is fixedly connected to the screening frame 2. The blocking plate 311 is in contact with the inner wall of the screening box 1. A through groove 312 is opened at the bottom of the blocking plate 311, and the through groove 312 matches the feeding groove 11.

[0054] Furthermore, the automatic adjustment structure 32 includes a fixing frame 321. The side wall of the fixing frame 321 is fixedly connected to the blocking plate 311. A connecting rod 322 is fixedly connected between the fixing frame 321 and the screening frame 2;

[0055] A limiting rod 323 is arranged through the middle of the fixing frame 321. The top of the limiting rod 323 is fixedly connected to the inner wall of the screening box 1. A limiting block 324 is fixedly connected to the bottom of the limiting rod 323. A spring 325 is sleeved on the outer periphery of the limiting rod 323. The bottom of the spring 325 abuts against the limiting block 324, and the top of the spring 325 abuts against the fixing frame 321. The fixing frame 321 is slidably connected to the limiting rod 323.

[0056] Further, the driving component 4 includes a mounting frame 41 which is arranged in an inverted U shape. The bottom of the mounting frame 41 is fixedly connected to the screening box 1. An electric push rod 42 is arranged inside the mounting frame 41. The top of the electric push rod 42 is fixedly connected to the inner wall of the mounting frame 41. The output end of the electric push rod 42 is matched with the through hole 14 and is also matched with the fixed frame 321.

[0057] Further, a feed bin 5 is arranged on one side of the feed chute 11. The side wall of the feed bin 5 is fixedly connected to the outer wall of the screening box 1. A discharge hopper 6 is arranged on one side of the discharge chute 12. The side wall of the discharge hopper 6 is fixedly connected to the outer wall of the screening box 1. A guiding plate 7 is arranged on the other side of the discharge chute 12. The outer periphery of the guiding plate 7 is fixedly connected to the inner wall of the screening box 1. A discharge hopper 8 is arranged on one side of the discharge trough 13. The side wall of the discharge hopper 8 is fixedly connected to the outer wall of the screening box 1.

[0058] The working principle and usage process of the present invention are as follows:

[0059] First, add lime powder into the feed bin 5. The lime powder will enter the screening box 1 through the feed chute 11 and the through slot 312 and fall onto the surface of the screen 21. At this time, by starting the vibration motor 22, the screening frame 2 and the screen 21 can be driven to vibrate, thereby accelerating the screening efficiency of the lime powder on the surface of the screen 21. At the same time, the caked lime powder that cannot pass through the screen 21 will also accumulate on the surface of the screen 21. The screened lime powder will slide down along the inclined guiding plate 7 and be discharged through the discharge hopper 6.

[0060] When the amount of caked lime powder accumulated is too large, the overall weight of the screen 21 and the limit frame will increase. At this time, under the action of gravity, the limit frame will drive the fixed frame 321 to move downward through the connecting rod 322. At the same time, the fixed frame 321 will squeeze and compress the spring 325.

[0061] At the same time, the downward movement of the limit frame will drive the blocking plate 311 to move downward. At this time, the through slot 312 at the bottom of the blocking plate 311 will be misaligned with the feed chute 11, and at the same time, the blocking plate 311 will seal the feed chute 11, so that the lime powder cannot reach the surface of the screen 21 through the feed chute 11, thus facilitating the subsequent cleaning of the caked lime powder on the surface of the screen 21.

[0062] When it is necessary to clean the caked lime powder on the surface of the screen 21, by starting the electric push rod 42, the output end of the electric push rod 42 can move downward through the through slot 312. When the output end of the electric push rod 42 contacts the top of the fixed frame 321, the output end of the electric push rod 42 can drive the screening frame 2 and the screen 21 to move downward through the fixed frame 321 and the connecting rod 322 until the screen 21 is matched with the discharge trough 13. At this time, the caked lime powder on the surface of the screen 21 can roll off the surface of the screen 21 and be discharged through the discharge trough 13, thereby completing the cleaning of the caked lime powder on the surface of the screen 21.

[0063] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A slaked lime powder screening device, comprising a screening box (1), characterized in that: A feed trough (11) and a discharge trough (12) are provided on one side of the screening box (1), wherein the discharge trough (12) is arranged below the feed trough (11), and a discharge trough (13) is provided on the other side of the screening box (1); A screening frame (2) is slidably arranged inside the screening box (1), and a blocking component (3) for automatically blocking the material trough is arranged between the top of the screening frame (2) and the screening box (1); A through hole (14) is provided at the top of the screening box (1), and a driving component (4) is fixedly arranged at the position of the through hole (14) at the top of the screening box (1).

2. A slaked lime powder screening device as claimed in claim 1, characterized in that: A screen (21) is fixedly connected to the top of the screening frame (2), the screen (21) is arranged obliquely, and a vibration motor (22) is fixedly connected to the inner wall of the screening frame (2).

3. A slaked lime powder screening device as claimed in claim 1, characterized in that: The blocking component (3) comprises a blocking structure (31) and an automatic adjustment structure (32), wherein the blocking structure (31) is used to seal the feed trough (11), and the automatic adjustment structure (32) is used to automatically adjust the height of the screening frame (2).

4. A slaked lime powder screening device as claimed in claim 3, characterized in that: The blocking structure (31) comprises a blocking plate (311), the bottom of the blocking plate (311) is fixedly connected to the screening frame (2), the blocking plate (311) is in contact with the inner wall of the screening box (1), and a through groove (312) is provided at the bottom of the blocking plate (311), and the through groove (312) matches the feed trough (11).

5. A slaked lime powder screening device as claimed in claim 4, characterized in that: The automatic adjustment structure (32) comprises a fixed frame (321), a side wall of the fixed frame (321) is fixedly connected to the blocking plate (311), and a connecting rod (322) is fixedly connected between the fixed frame (321) and the screening frame (2); A limiting rod (323) is provided through the middle of the fixed frame (321); the top of the limiting rod (323) is fixedly connected to the inner wall of the screening box (1); the bottom of the limiting rod (323) is fixedly connected to a limiting block (324); a spring (325) is sleeved on the outer periphery of the limiting rod (323); the bottom of the spring (325) abuts against the limiting block (324); the top of the spring (325) abuts against the fixed frame (321); and the fixed frame (321) is slidably connected to the limiting rod (323).

6. A slaked lime powder screening device as claimed in claim 5, characterized in that: The driving component (4) comprises a mounting frame (41), the mounting frame (41) is set in an "inverted U" shape, the bottom of the mounting frame (41) is fixedly connected to the screening box (1), an electric push rod (42) is provided on the inner side of the mounting frame (41), the top of the electric push rod (42) is fixedly connected to the inner wall of the mounting frame (41), the output end of the electric push rod (42) matches the through hole (14), and the output end of the electric push rod (42) matches the fixed frame (321).

7. A slaked lime powder screening device as claimed in claim 1, characterized in that: A feed bin (5) is provided on one side of the feed trough (11), and the side wall of the feed bin (5) is fixedly connected to the outer wall of the screening box (1); a discharge hopper (6) is provided on one side of the discharge trough (12), and the side wall of the discharge hopper (6) is fixedly connected to the outer wall of the screening box (1); a guide plate (7) is provided on the other side of the discharge trough (12), and the outer periphery of the guide plate (7) is fixedly connected to the inner wall of the screening box (1); a discharge hopper (8) is provided on one side of the discharge trough (13), and the side wall of the discharge hopper (8) is fixedly connected to the outer wall of the screening box (1).

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