Screening and separating device for ground calcium carbonate powder

Abstract

The utility model provides a heavy calcium carbonate powder screening and separating device, which relates to the technical field of heavy calcium carbonate powder screening, and comprises an inclined shell, a separating cavity is arranged in the shell, a filter cartridge is rotatably arranged in the separating cavity, a breather pipe is fixed on the upper edge of the separating cavity, and the breather pipe is provided with an air inlet pipe and an air outlet pipe. When heavy calcium carbonate powder enters the filter cartridge, the filter cartridge rotates to drive the powder to continuously move downwards, powder particles with different particle sizes can be screened and separated in the filter cartridge, and when the particles block filter holes, gas sprayed out of the gas outlet pipe can blow off the blocked particles, so that the particles are separated from the filter cartridge. Finally, the effect of cleaning blockage is achieved, stable operation of the device is ensured, so that the problem of poor separation effect caused by blockage of the filter holes in the prior art is solved, meanwhile, the filter cartridge does not need to be frequently detached for cleaning, continuous operation can be kept, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heavy calcium carbonate powder screening, in particular to a heavy calcium carbonate powder screening and separation device. Background Art

[0002] Heavy calcium carbonate is usually processed from natural carbonate minerals such as calcite, marble, and limestone. It is widely used in rubber, plastic, paint, construction and other industries. During production, the raw materials need to be crushed, ground, screened and other processes. Existing crushers generally use hammer crushers or jaw crushers to crush the raw materials for the first time, and then use screens to screen the crushed calcium carbonate powder and fragments. Due to the physical properties of heavy calcium carbonate itself, its shape after crushing is mostly irregular, and the particle size varies greatly. This leads to the separation process is often accompanied by dust, blockage and other problems, and the separation effect is not good.

[0003] The Chinese utility model patent with document number CN217990033U discloses a heavy calcium powder selection and processing device, which belongs to the technical field of heavy calcium powder production equipment, and comprises a shell and an air separation tube installed at the bottom of the shell, a feeding tube is installed on the side wall at one end of the shell, a bearing is installed on the side wall at the other end of the shell, a screening drum is sleeved in the bearing, a gear ring is installed at the end of the screening drum away from the bearing, an air inlet pipe is welded to one end of the air separation tube, an air outlet pipe is welded to the other end of the air separation tube, a first screen is installed at one end of the air outlet pipe close to the air separation tube, a first sorting cylinder is welded to the bottom of one end of the air separation tube close to the air inlet pipe, a second sorting cylinder is welded to the bottom of one end of the air separation tube away from the air inlet pipe, a second screen is installed in the second sorting cylinder, and a handle is installed on its frame. The heavy calcium powder selection and processing device can pull out and replace the screen through the handle on the screen frame, has good practicality, and is convenient for continuous production.

[0004] In the above structure, when the filter holes of the upper screening drum are clogged, the heavy calcium powder cannot be separated normally, thus affecting the screening effect. Utility Model Content

[0005] In view of the deficiencies existing in the prior art, the utility model provides a heavy calcium carbonate powder screening and separation device, which solves the problem of poor separation effect caused by filter hole blockage in the prior art.

[0006] According to an embodiment of the utility model, a heavy calcium carbonate powder screening and separation device comprises:

[0007] The shell is tilted, a feed port is arranged at the higher end of the shell, a separation chamber is arranged in the shell, the higher end of the separation chamber is connected with the feed port, the lower end of the separation chamber is connected with a first discharge port at the bottom of the shell, and a motor is fixedly arranged at the lower end of the shell;

[0008] The separation mechanism comprises a filter cartridge, the filter cartridge is inclined at the same angle as the shell, and both ends are rotatably connected in the separation chamber, the higher end of the filter cartridge is connected to the feed port, and the lower end is connected to the shell and provided with a second discharge port, the second discharge port is located above the first discharge port, and the filter cartridge is also fixedly connected to a rotating assembly, and the rotating assembly is rotatably matched with the motor shaft of the motor;

[0009] The blockage clearing mechanism comprises a vent pipe with closed ends, the vent pipe is fixedly mounted on the upper edge of the inner wall of the separation chamber, an air inlet pipe penetrating the outer shell is arranged on the side of the vent pipe away from the filter cartridge, and a plurality of air outlet pipes are arranged on the side of the vent pipe close to the filter cartridge.

[0010] The technical principle of the utility model is as follows: after the heavy calcium carbonate powder enters the interior of the filter cartridge from the feed inlet, the motor drives the inclined filter cartridge to rotate, driving the calcium carbonate powder entering the filter cartridge to move downward continuously, and small particles of powder pass through the filter holes and fall to the bottom of the separation chamber, slide along the bottom of the separation chamber, and are discharged from the first discharge port, and large particles of powder will roll down on the inclined inner wall of the filter cartridge and finally be discharged from the second discharge port. When particles block the filter holes, the ventilation pipe can blow off the blocked particles through the gas ejected from the outlet pipe, thereby finally achieving the effect of clearing the blockage and ensuring the stable operation of the device.

[0011] Furthermore, the rotating assembly includes a plurality of support rods, one end of each support rod is fixedly connected to the filter cartridge, and the other end of each support rod is fixedly connected to a rotating shaft, and the rotating shaft is coaxially arranged with the filter cartridge.

[0012] Furthermore, a first bevel gear is fixedly connected to the rotating shaft, and a second bevel gear meshing with the first bevel gear is fixedly connected to the motor rotating shaft.

[0013] Furthermore, a meshing cavity for meshing and rotating the first bevel gear and the second bevel gear is provided above the second discharge port, the rotating shaft and the motor rotating shaft pass through the cavity wall of the meshing cavity, and the meshing cavity is respectively provided with a first rubber ring and a second rubber ring at the penetration point of the rotating shaft and the motor rotating shaft.

[0014] Furthermore, the cross section of the feed port is smaller than the cross section of the filter cartridge opening, and a guide plate is provided extending outwardly from the lower half of the cross section of the second discharge port.

[0015] Furthermore, a first mounting groove and a second mounting groove for rotating the filter cartridge are respectively arranged around the lower edge of the feed port and the upper edge of the second discharge port.

[0016] Furthermore, the ventilation pipe is arranged parallel to the side of the filter cartridge and has the same length, and a gap is left between the air outlet pipe and the filter cartridge.

[0017] Furthermore, a dust filter is fixedly arranged on the outer end surface of the air outlet pipe.

[0018] Compared with the prior art, the utility model has the following beneficial effects: by setting a separation mechanism, a motor drives the inclined filter cartridge to rotate, driving the calcium carbonate powder entering the filter cartridge to move downward continuously, small particles of powder pass through the filter holes and fall to the bottom of the separation chamber, and slide along the bottom of the separation chamber to be discharged from the first discharge port, and large particles of powder will roll down on the inclined inner wall of the filter cartridge and finally be discharged from the second discharge port. By setting a clearing mechanism, when particles clog the filter holes, the ventilation pipe can blow off the clogged particles through the gas ejected from the outlet pipe, thereby solving the problem of poor separation effect caused by filter hole blockage in the prior art. At the same time, there is no need to frequently dismantle the filter cartridge for cleaning, so continuous operation can be maintained, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model.

[0020] Figure 2 The figure is a schematic diagram of the cross-sectional structure of the shell of an embodiment of the utility model.

[0021] Figure 3 It is a schematic diagram of the overall cross-sectional structure of an embodiment of the utility model.

[0022] Figure 4 It is a schematic diagram of the enlarged structure of point A of an embodiment of the utility model.

[0023] Figure 5 It is a schematic diagram of the enlarged structure of point B of an embodiment of the utility model.

[0024] In the above drawings: 1. Shell; 11. Feed inlet; 12. Separation chamber; 13. First discharge port; 14. Second discharge port; 15. Support frame; 16. First mounting slot; 17. Second mounting slot; 18. Engaging chamber; 2. Separation mechanism; 21. Filter cartridge; 221. Filter hole; 22. Support rod; 23. Rotating shaft; 24. First bevel gear; 25. Limiting ring; 3. Clearing mechanism; 31. Inlet pipe; 32. Vent pipe; 33. Outlet pipe; 4. Motor; 41. Motor shaft; 42. Second bevel gear. DETAILED DESCRIPTION

[0025] like Figure 1As shown, the embodiment of the utility model proposes a heavy calcium carbonate powder screening and separation device, including a shell 1, the shell 1 is inclined, and a feed port 11 is arranged at the higher end of the inclination, and the feed port 11 is arranged in a funnel shape with a wide top and a narrow bottom, which is convenient for the input of powder. Figure 2 As shown, a separation chamber 12 is provided in the outer shell 1, and the lower edge of the feed port 11 is connected with the higher end of the separation chamber 12. The cross-section of the separation chamber 12 is preferably a waist groove shape, and the bottom of the separation chamber 12 is a smooth inclined plane. The lower end of the separation chamber 12 is connected with a first discharge port 13 at the bottom position of the outer shell 1, and the first discharge port 13 has a guide plate extending outward along the cross-sectional shape. A motor 4 is also vertically fixed at the lower end of the upper wall of the outer shell 1, and the motor shaft 41 of the motor 4 extends into the outer shell 1. The outer wall of the outer shell 1 is also fixedly connected to a support frame 15.

[0026] like Figure 3 As shown, the embodiment of the utility model provides a heavy calcium carbonate powder screening and separation device, which also includes a separation mechanism 2, wherein the separation mechanism 2 includes a filter cartridge 21, combined with Figure 5 The filter cartridge 21 is provided with a plurality of filter holes 221 of the same size. The filter cartridge 21 is axially inclined at the same angle as the housing 1, and both ends of the opening are rotatably connected in the separation chamber 12. The higher end of the filter cartridge 21 is connected to the feed port 11, and the opening cross section of the filter cartridge 21 is larger than the cross section of the feed port 11. Figure 2 As shown, the first mounting groove 16 is arranged around the lower edge of the feed port 11, and the diameter of the first mounting groove 16 is slightly larger than the diameter of the filter cartridge 21, so that the filter cartridge 21 can rotate normally. The lower end of the filter cartridge 21 is also connected to the second discharge port 14 on the housing 1, and the second discharge port 14 is located above the first discharge port 13. The second mounting groove 17 is arranged around the upper edge of the second discharge port 14, and the diameter of the second mounting groove 17 is slightly larger than the diameter of the filter cartridge 21, so that the filter cartridge 21 can rotate normally, so as to better The filter cartridge 21 is fixed, and protrusions are arranged around the end surfaces of the first mounting groove 16 and the second mounting groove 17 close to the filter cartridge 21. Limiting rings 25 are arranged at both ends of the opening of the filter cartridge 21. When the filter cartridge 21 is rotatably installed in the first mounting groove 16 and the second mounting groove 17, the protrusions will block the movement of the limiting rings 25, thereby increasing the stability of the filter cartridge 21. A material guide plate is arranged extending outward from the lower half of the second discharge port 14, and the cross-section of the material guide plate is consistent with the lower half of the opening of the filter cartridge 21, so as to facilitate the discharge of powder.

[0027] like Figure 4As shown, the lower end of the filter cartridge 21 is also fixedly connected to a rotating assembly, and the rotating assembly includes a plurality of support rods 22, one end of the support rod 22 is fixedly connected to the filter cartridge 21, and the other end is fixedly connected to a rotating shaft, and the rotating shaft is coaxially arranged with the filter cartridge 21, and a first bevel gear 24 is fixedly connected to the side of the rotating shaft away from the filter cartridge 21, and a second bevel gear 42 that can mesh with the first bevel gear 24 is fixedly connected to the end of the motor shaft 41, and when the motor shaft 41 rotates, the filter cartridge 21 can be driven to rotate.

[0028] According to another embodiment, for dust prevention considerations, a meshing cavity 18 is provided at the meshing and rotating position of the first bevel gear 24 and the second bevel gear 42, the meshing cavity 18 is located above the second discharge port 14, the rotating shaft and the motor rotating shaft 41 penetrate the cavity wall of the meshing cavity 18, and the meshing cavity 18 is respectively provided with a first rubber ring and a second rubber ring at the penetration position of the rotating shaft and the motor rotating shaft 41.

[0029] like Figure 3 and Figure 5 As shown, an embodiment of the utility model proposes a heavy calcium carbonate powder screening and separation device, which also includes a clearing mechanism 3, wherein the clearing mechanism 3 includes a vent pipe 32 with closed ends, the vent pipe 32 is fixedly installed on the upper edge of the inner wall of the separation chamber 12, the vent pipe 32 is arranged parallel to the side of the filter cartridge 21 and is of equal length, and an air inlet pipe 31 that passes through the outer shell 1 is arranged on the side of the vent pipe 32 away from the filter cartridge 21, the air inlet pipe 31 is located near the feed port 11, and a plurality of air outlet pipes 33 are arranged on the side of the vent pipe 32 near the filter cartridge 21, and a gap is left between the air outlet pipe 33 and the filter cartridge 21, and to prevent the air outlet pipe 33 from being blocked, a dust filter is also fixedly arranged on the outer end face of the air outlet pipe 33.

[0030] The working principle of the utility model is as follows: after the heavy calcium carbonate powder enters the interior of the filter cartridge 21 from the feed port 11, the motor 4 drives the inclined filter cartridge 21 to rotate, driving the calcium carbonate powder entering the filter cartridge 21 to move downward continuously, and the small particles of powder pass through the filter hole 221 and fall to the bottom of the separation chamber 12, slide along the bottom of the separation chamber 12, and are discharged from the first discharge port 13, and the large particles of powder will roll down on the inclined inner wall of the filter cartridge 21, and finally be discharged from the second discharge port 14. When particles block the filter hole 221, the vent pipe 32 can blow off the blocked particles through the gas ejected from the outlet pipe 33, and finally achieve the effect of clearing the blockage, ensuring the stable operation of the device, and at the same time, there is no need to frequently dismantle the filter cartridge for cleaning, and continuous operation can be maintained to improve production efficiency.

[0031] The utility model has the following beneficial effects: by setting the separation mechanism 2, the motor 4 drives the inclined filter cartridge 21 to rotate, driving the calcium carbonate powder entering the filter cartridge 21 to move downward continuously, and the small particles of powder pass through the filter hole 221 and fall to the bottom of the separation chamber 12, and slide along the bottom of the separation chamber 12, and are discharged from the first discharge port 13, and the large particles of powder will roll down on the inclined inner wall of the filter cartridge 21, and finally be discharged from the second discharge port 14. By setting the clearing mechanism 3, when particles block the filter hole 221, the ventilation pipe 32 can blow off the blocked particles through the gas ejected from the outlet pipe 33, thereby solving the problem of poor separation effect caused by the blockage of the filter hole 221.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A heavy calcium carbonate powder screening and separation device, characterized in that: include: A shell (1), wherein the shell (1) is arranged at an angle, a feed port (11) is arranged at a higher end of the shell (1), a separation chamber (12) is arranged inside the shell (1), the higher end of the separation chamber (12) is connected to the feed port (11), the lower end of the separation chamber (12) is connected to a first discharge port (13) at the bottom of the shell (1), and a motor (4) is fixedly arranged at the lower end of the shell (1); A separation mechanism (2), the separation mechanism (2) comprising a filter cartridge (21), the filter cartridge (21) being inclined at the same angle as the housing (1), and having two ends rotatably connected in the separation chamber (12), the higher end of the filter cartridge (21) being connected to the feed port (11), and the lower end being connected to a second discharge port (14) provided on the housing (1), the second discharge port (14) being located above the first discharge port (13), the filter cartridge (21) being further fixedly connected to a rotating assembly, the rotating assembly being rotatably matched with a motor shaft (41) of a motor (4); A blockage clearing mechanism (3), the blockage clearing mechanism (3) comprising a vent pipe (32) with two closed ends, the vent pipe (32) being fixedly mounted on the upper edge of the inner wall of the separation chamber (12), an air inlet pipe (31) penetrating the outer shell (1) being arranged on the side of the vent pipe (32) facing away from the filter cartridge (21), and a plurality of air outlet pipes (33) being arranged on the side of the vent pipe (32) close to the filter cartridge (21).

2. A heavy calcium carbonate powder screening and separation device as claimed in claim 1, characterized in that: The rotating assembly comprises a plurality of support rods (22), one end of the support rod (22) is fixedly connected to the filter cartridge (21), and the other end is fixedly connected to a rotating shaft (23), and the rotating shaft (23) is coaxially arranged with the filter cartridge (21).

3. A heavy calcium carbonate powder screening and separation device as claimed in claim 2, characterized in that: The rotating shaft (23) is fixedly connected to a first bevel gear (24), and the motor rotating shaft (41) is fixedly connected to a second bevel gear (42) meshing with the first bevel gear (24).

4. A heavy calcium carbonate powder screening and separation device as claimed in claim 3, characterized in that: A meshing cavity (18) is provided above the second discharge port (14) for meshing and rotating the first bevel gear (24) and the second bevel gear (42); the rotating shaft (23) and the motor rotating shaft (41) pass through the cavity wall of the meshing cavity (18); and the meshing cavity (18) is provided with a first rubber ring and a second rubber ring at the point where the rotating shaft (23) and the motor rotating shaft (41) pass through.

5. A heavy calcium carbonate powder screening and separation device as claimed in claim 1, characterized in that: The cross section of the feed opening (11) is smaller than the cross section of the opening of the filter cartridge (21), and a guide plate is extended outwardly from the lower half of the second discharge opening (14).

6. A heavy calcium carbonate powder screening and separation device as claimed in claim 5, characterized in that: A first mounting groove (16) and a second mounting groove (17) for the filter cartridge (21) to rotate are respectively arranged around the lower edge of the feed port (11) and the upper edge of the second discharge port (14).

7. A heavy calcium carbonate powder screening and separation device as claimed in claim 1, characterized in that: The ventilation pipe (32) is arranged parallel to the side of the filter cartridge (21) and has the same length, and a gap is left between the air outlet pipe (33) and the filter cartridge (21).

8. A heavy calcium carbonate powder screening and separation device as claimed in claim 7, characterized in that: A dust filter is fixedly arranged on the outer end surface of the air outlet pipe (33).

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