Nano calcium carbonate powder screening device

Abstract

The utility model discloses a screening device for nano calcium carbonate powder, which belongs to the technical field of nano calcium carbonate powder and comprises a sealing barrel, two sides of the sealing barrel are fixedly connected with a support frame, support legs are fixedly mounted on the periphery of the support frame, a screening barrel is arranged in the sealing barrel, and the screening barrel is fixedly connected with the support frame. An opening through which the screen barrel passes is formed in one side of the sealing barrel, and one end of the screen barrel is arranged outside the sealing barrel and rotationally connected with the center of one side of the supporting frame; according to the calcium carbonate powder screening device, the sealing barrel, the screening barrel and other structures are matched for use, the structure is simple, convenience and practicability are achieved, calcium carbonate powder can be placed in the sealing barrel to be screened, dust generated in the screening process is prevented from flying to the outside to cause harm to the environment and the body of an operator, and the calcium carbonate powder can be conveyed into the sealing barrel through the spiral blades; and the screened impurities can be concentrated at the charging hole and discharged, so that the processing efficiency is improved, and the labor intensity of operators is reduced.

Description

Technical Field

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

[0002] Nano calcium carbonate is also called ultrafine calcium carbonate. The most mature industry for the application of nano calcium carbonate is the plastics industry, which is mainly used in high-end plastic products. It can improve the rheological properties of plastic masterbatch and improve its formability. It can be used as a plastic filler to strengthen and toughen the plastic, improve the bending strength and bending elastic modulus, heat deformation temperature and dimensional stability of the plastic, and also give the plastic thermal hysteresis. Nano calcium carbonate is used in ink products to show excellent dispersibility, transparency, excellent gloss, excellent ink absorption and high drying properties. When producing and processing nano calcium carbonate, it is necessary to screen the nano calcium carbonate powder.

[0003] After searching, in the prior art, Chinese patent announcement number: CN217120786U discloses a spherical nano calcium carbonate crushing and screening device, the utility model: comprises two symmetrically distributed support plates, two crushing shafts for crushing calcium carbonate are rotatably connected between the two support plates, the ends of the crushing shafts are provided with driving mechanisms for driving the rotation thereof, two arc-shaped baffles symmetrically distributed on the left and right sides of the crushing shafts are fixedly connected between the two support plates, one of the support plates is internally plugged with a feed pipe located above the arc-shaped baffles; calcium carbonate is put between the two arc-shaped baffles through the feed pipe, the crushing shaft is driven to rotate by the driving mechanism to be crushed, the crushed calcium carbonate falls to the bottom of the screen drum after crushing, and is screened by the screen drum so that larger particles remain inside the screen drum, the screen drum is driven to rotate between the two support plates by the driving assembly, the push plate is rotated and the large particles are pushed to move and lift.

[0004] The utility model also has the following defects:

[0005] Nano calcium carbonate powder will generate dust during the screening process. The dust will float in the air and pollute the processing environment. Moreover, long-term exposure of operators to calcium carbonate dust will irritate the respiratory system and cause respiratory diseases such as coughing and asthma. In addition, excessive intake of calcium carbonate may also lead to health problems such as indigestion and osteoporosis. The device does not solve this problem well. Utility Model Content

[0006] The utility model aims to provide a device for screening nano calcium carbonate powder. By setting up a sealing barrel and a screening barrel and other structures for use in combination, the calcium carbonate powder can be placed in the sealing barrel for screening, so as to avoid the dust generated during screening from flying to the outside to cause harm to the environment and the health of operators. The screened calcium carbonate powder can be collected into an external container through a collecting hopper and a discharging port, so as to reduce the dust generated during discharging, so as to solve the problems raised in the above-mentioned background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A device for screening nano calcium carbonate powder comprises a sealed barrel, both sides of which are fixedly connected to a support frame, support legs are fixedly installed around the support frame, a screen barrel is arranged inside the sealed barrel, one side of the sealed barrel is provided with an opening for the screen barrel to pass through, one end of the screen barrel is arranged outside the sealed barrel and is rotatably connected to the center of one side of the support frame, a motor is fixedly installed on the other side of the support frame, the output end of the motor passes through the support frame and is transmission-connected to the other end of the sealed barrel and the screen barrel, a feeding port is arranged on the top of one end of the screen barrel, and a discharge port is arranged on one side of the bottom of the sealed barrel.

[0009] Preferably, the surface of the sieve barrel is provided with sieve holes for screening calcium carbonate powder, and the sieve holes are located in the inner cavity of the sealed barrel.

[0010] Preferably, a dustproof soft plate is fixedly mounted on one side of the sealing barrel, and the inner side of the dustproof soft plate is matched with the sliding clearance of the surface of the screen barrel.

[0011] Preferably, a spiral blade is provided inside the sieve barrel, and the spiral blade is fixedly mounted on the inner wall of the sieve barrel.

[0012] Preferably, slide grooves are provided on both sides of the feeding port, the slide grooves are fixedly mounted on the surface of the screen barrel, and sliding door panels are slidably mounted in the slide grooves.

[0013] Preferably, a collecting hopper is integrally formed at the bottom of the sealing barrel, and a discharge port is fixedly installed on one side of the collecting hopper.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model adopts the structure of setting a sealing barrel and a screening barrel to cooperate with each other, which has a simple structure, is convenient and practical, can put the calcium carbonate powder in the sealing barrel for screening, and avoid the dust generated during screening from flying to the outside to cause harm to the environment and the health of operators, and can collect the screened calcium carbonate powder into an external container through the collecting hopper and the discharging port, and reduce the dust generated during discharging, and can deliver the calcium carbonate powder into the sealing barrel by setting the spiral blade, and can also collect the screened impurities at the feeding port for discharge, thereby improving the processing efficiency and reducing the labor intensity of operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the screening device of the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the sealing barrel of the utility model;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the screen barrel of the utility model.

[0019] In the figure: 1. Sealing barrel; 2. Support frame; 3. Support legs; 4. Screen barrel; 5. Motor; 6. Feeding port; 7. Discharging port; 8. Screen hole; 9. Dust-proof soft plate; 10. Spiral blades; 11. Sliding door panel; 12. Collecting hopper. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figures 1 to 3 , the utility model provides a technical solution:

[0022] A device for screening nano calcium carbonate powder comprises a sealed barrel 1, both sides of which are fixedly connected to a support frame 2, and support legs 3 are fixedly installed around the support frame 2. The device can be fixed and provide a stable supporting force by arranging the support frame 2 and the support legs 3; a screening barrel 4 is arranged inside the sealed barrel 1, and an opening for the screening barrel 4 to pass through is opened on one side of the sealed barrel 1, and one end of the screening barrel 4 is arranged outside the sealed barrel 1 and is rotatably connected to the center of one side of the support frame 2. By arranging the sealed barrel 1 and the screening barrel 4 for use in combination, calcium carbonate powder can be placed inside the sealed barrel 1 for screening, so as to avoid dust generated during screening from flying to the outside and causing damage to the environment and operation The motor 5 is fixedly mounted on the other side of the support frame 2, and the output end of the motor 5 passes through the support frame 2 and is transmission-connected with the other end of the sealing barrel 1 and the screen barrel 4. By arranging the motor 5, the screen barrel 4 can be provided with a rotational power, thereby improving the screening efficiency and reducing the labor intensity of the operator. The screen barrel 4 is provided with a spiral blade 10 inside, and the spiral blade 10 is fixedly mounted on the inner wall of the screen barrel 4. By arranging the spiral blade 10, the calcium carbonate powder can be delivered to the sealing barrel 1, and the screened impurities can also be concentrated at the feeding port 6 for discharge. At the same time, the calcium carbonate powder can be turned over during rotation to accelerate the screening and improve the processing efficiency.

[0023] The surface of the sieve barrel 4 is provided with sieve holes 8 for screening calcium carbonate powder, and the sieve holes 8 are located in the inner cavity of the sealed barrel 1; a dustproof soft plate 9 is fixedly installed on one side of the sealed barrel 1, and the inner side of the dustproof soft plate 9 cooperates with the sliding clearance of the surface of the sieve barrel 4. By placing the part of the sieve barrel 4 with the sieve holes 8 in the inner cavity of the sealed barrel 1, the dust generated during screening can be retained in the sealed barrel 1 to prevent harm to the environment and the operator's body, and the dustproof soft plate 9 can be used in conjunction with the dustproof soft plate 9 to prevent dust from flying out from the gap between the sieve barrel 4 and the sealed barrel 1, further reducing dust flying to the outside.

[0024] A feeding port 6 is provided at the top of one end of the sieve barrel 4, and slide grooves are provided on both sides of the feeding port 6. The slide grooves are fixedly installed on the surface of the sieve barrel 4, and a sliding door panel 11 is slidably installed in the slide groove. A collecting hopper 12 is integrally formed at the bottom of the sealing barrel 1, and a discharge port 7 is fixedly installed on one side of the collecting hopper 12. The screened calcium carbonate powder can be collected into an external container through the collecting hopper 12 and the discharge port 7 to reduce dust generated during discharge.

[0025] When in use, the device is moved to the designated position and fixed, the sliding door panel 11 is opened, the calcium carbonate powder to be screened is added into the sieve barrel 4 through the feeding port 6, the sliding door panel 11 is closed, the external storage device is wound and fixed on the discharge port 7, the motor 5 is turned on to control the motor output end to drive the sieve barrel 4 to rotate forward, and the spiral blades 10 inside the sieve barrel 4 flip the calcium carbonate powder to the part of the sieve barrel 4 with sieve holes 8 in the sealing barrel 1, and the calcium carbonate powder is repeatedly screened by continuous flipping. The calcium carbonate powder passing through the sieve holes 8 is screened and slides through the collecting hopper 12 to the external storage device of the discharge port 7 under the influence of gravity. When the calcium carbonate powder in the sieve barrel 4 is completely screened, the output end of the motor 5 can be controlled to drive the sieve barrel 4 to rotate in the opposite direction, and the remaining impurities and larger particles are pushed to the feeding port 6, and the feeding port 6 is rotated to the bottom, and the sliding door panel 11 is opened to take out the remaining impurities and larger particles.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for screening nano calcium carbonate powder, comprising a sealed barrel (1), characterized in that: Both sides of the sealing barrel (1) are fixedly connected to the support frame (2), and support legs (3) are fixedly installed around the support frame (2). A sieve barrel (4) is arranged inside the sealing barrel (1), and an opening for the sieve barrel (4) to pass through is opened on one side of the sealing barrel (1). One end of the sieve barrel (4) is arranged outside the sealing barrel (1) and is rotatably connected to the center of one side of the support frame (2). A motor (5) is fixedly installed on the other side of the support frame (2), and the output end of the motor (5) passes through the support frame (2) and is transmission-connected to the other end of the sealing barrel (1) and the sieve barrel (4). A feeding port (6) is arranged on the top of one end of the sieve barrel (4), and a discharge port (7) is arranged on one side of the bottom of the sealing barrel (1).

2. A nano calcium carbonate powder screening device according to claim 1, characterized in that: The surface of the sieve barrel (4) is provided with sieve holes (8) for sieving calcium carbonate powder, and the sieve holes (8) are located in the inner cavity of the sealed barrel (1).

3. A nano calcium carbonate powder screening device according to claim 2, characterized in that: A dustproof soft plate (9) is fixedly mounted on one side of the sealing barrel (1), and the inner side of the dustproof soft plate (9) is in sliding clearance with the surface of the sieve barrel (4).

4. A device for screening nano calcium carbonate powder according to claim 3, characterized in that: A spiral blade (10) is arranged inside the sieve barrel (4), and the spiral blade (10) is fixedly mounted on the inner wall of the sieve barrel (4).

5. The nano calcium carbonate powder screening device according to claim 1, characterized in that: Slide grooves are provided on both sides of the feed port (6), the slide grooves are fixedly mounted on the surface of the sieve barrel (4), and a sliding door panel (11) is slidably mounted in the slide grooves.

6. The nano calcium carbonate powder screening device according to claim 1, characterized in that: A collecting hopper (12) is integrally formed at the bottom of the sealing barrel (1), and a discharge port (7) is fixedly mounted on one side of the collecting hopper (12).

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