High-precision screening device for calcium carbonate powder

Abstract

The utility model provides a calcium carbonate powder high-precision screening device which comprises a base, a vibrating screen is installed on the base, a plurality of filter screen trays are arranged in the vibrating screen from top to bottom and are arranged in an inclined mode, and a first discharging port is formed in the bottom of each filter screen tray. The first discharging port is formed in the vibrating screen, a feeding pipe is arranged at the top of the vibrating screen, vertical bases are arranged on the two sides of the vibrating screen, the bottoms of the vertical bases are fixed to the base, a processing pipe is fixed between the two vertical bases through a connecting base, and the top of the feeding pipe is located in the processing pipe. The problems that an existing screening mechanism lacks a pre-smashing mechanism in the using process, when the size of calcium carbonate powder in added materials is large, a filtering screening disc is prone to being blocked, and workers need to spend a large amount of time for cleaning are solved.

Description

Technical Field

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

[0002] Calcium carbonate is an inorganic compound with the chemical formula CaCO3, commonly known as graystone, limestone, stone powder, etc. Calcium carbonate is alkaline, basically insoluble in water, and soluble in hydrochloric acid. It is one of the common substances on the earth and exists in rocks such as aragonite, calcite, chalk, limestone, marble, and travertine. It is also the main component of the bones or shells of some animals. Calcium carbonate is also an important building material and is widely used in industry. Calcium carbonate has a wide range of uses, so calcium carbonate of different particle sizes needs to be distinguished during processing.

[0003] Publication No. CN219003646U discloses a calcium carbonate powder screening mechanism, comprising a base, a vibrating screen is arranged on the upper side of the base, a vibrating motor is installed at the bottom of the vibrating screen, a first sieve plate is formed on one side of the inner side of the vibrating screen along the vertical direction, leakage holes are evenly opened on the first sieve plate, the first sieve plate comprises a middle sieve plate and a first annular sieve plate arranged on the outer side of the middle sieve plate; when screening calcium carbonate powder, the screening effect is good and the screening efficiency is high.

[0004] However, the above screening mechanism lacks a pre-crushing mechanism when in use. When the calcium carbonate powder in the added material is large in size, it is easy to clog the filter screen, requiring the staff to spend a lot of time to clean it.

[0005] Therefore, it is necessary to provide a new high-precision screening device for calcium carbonate powder to solve the above-mentioned technical problems. Utility Model Content

[0006] In order to solve the above technical problems, the utility model provides a high-precision screening device for calcium carbonate powder, which solves the problem that the existing screening mechanism lacks a pre-crushing mechanism when in use, and when the calcium carbonate powder in the added material is large in size, it is easy to clog the filter screen, requiring staff to spend a lot of time to clean it.

[0007] The high-precision screening device for calcium carbonate powder provided by the utility model comprises a base, a vibrating screen is installed on the base, a plurality of filter screen plates are arranged from top to bottom inside the vibrating screen, the filter screen plates are arranged obliquely, and a first discharge port is arranged at the bottom of the filter screen plates, and the first discharge port is opened on the vibrating screen;

[0008] A feed pipe is arranged on the top of the vibration screen, and stands are arranged on both sides of the vibration screen. The bottom of the stands is fixed on the base, a processing pipe is fixed between the two stands via a connecting seat, the top of the feed pipe is located inside the processing pipe, and two crushing rollers are movably arranged inside the processing pipe.

[0009] In a preferred embodiment, two transmission shafts are spaced apart on one side of the processing tube, one end of the transmission shaft is fixedly connected to the crushing roller, and the other end of the transmission shaft is provided with a gear, and the two gears are meshed with each other;

[0010] A crushing motor is installed on the connecting seat, and the output end of the crushing motor is connected to the transmission shaft through a coupling.

[0011] In a preferred embodiment, a closing plate is provided through one side of the processing tube, and the closing plate is slidably connected to the processing tube, and a movable seat is fixed at the bottom of the closing plate;

[0012] A driving motor is installed on the connecting seat, and a lead screw is provided through the movable seat. The lead screw is threadedly connected to the movable seat, one end of the lead screw is movably connected to the surface of the processing tube through a bearing, and the other end of the lead screw is connected to the output end of the driving motor through a coupling.

[0013] In a preferred embodiment, an anti-drop frame is installed on the top of the processing tube, and the anti-drop frame is trumpet-shaped.

[0014] In a preferred embodiment, a mounting ring is fixed on the top of the vibrating screen, and a collecting groove is provided on the surface of the mounting ring.

[0015] In a preferred embodiment, an inclined seat is fixed at the bottom of the vibration screen, a second discharge port is arranged at one side of the inclined seat, and a vibration motor is installed at the bottom of the vibration screen.

[0016] Beneficial effects of the utility model:

[0017] 1. During screening, the staff can directly add raw materials into the processing tube through the inclined auger elevator. The crushing motor starts and drives one of the transmission shafts to rotate. Under the transmission action of the two gears, the two crushing rollers rotate in opposite directions to crush the larger calcium carbonate powder in the raw materials to prevent it from clogging the filter screen;

[0018] 2. After the crushing is completed, the staff can start the drive motor to drive the screw to rotate. Under the action of the screw, the sealing plate can seal the inside of the processing tube to prevent the smaller calcium carbonate powder inside the vibrating screen from escaping into the air from above the feed pipe during vibration. The crushed calcium carbonate powder will fall from the feed pipe into multiple filter screens in turn for screening, and the screened powder will be discharged from the corresponding discharge port. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional view of the main structure of the high-precision screening device for calcium carbonate powder provided by the utility model;

[0020] Figure 2 A plan view of the main structure of the high-precision screening device for calcium carbonate powder provided by the utility model;

[0021] Figure 3 for Figure 2 A schematic diagram of the enlarged structure of shown;

[0022] Figure 4 This is a schematic diagram of the internal structure of the processing tube provided by the utility model.

[0023] Numbers in the figure: 1. base; 2. vibrating screen; 3. filter screen plate; 4. first discharge port; 5. feed pipe; 6. stand; 7. connecting seat; 8. processing pipe; 9. crushing roller; 10. transmission shaft; 11. gear; 12. crushing motor; 13. closing plate; 14. closing plate; 15. driving motor; 16. screw; 17. anti-drop frame; 18. mounting ring; 19. collecting trough; 20. tilting seat; 21. second discharge port; 22. vibration motor. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0025] Please refer to Figure 1 , Figure 2 , Figure 3 as well as Figure 4 ,in Figure 1 A three-dimensional view of the main structure of the high-precision screening device for calcium carbonate powder provided by the utility model; Figure 2 A plan view of the main structure of the high-precision screening device for calcium carbonate powder provided by the utility model; Figure 3 for Figure 2 A schematic diagram of the enlarged structure of shown; Figure 4 This is a schematic diagram of the internal structure of the processing tube provided by the utility model.

[0026] In the specific implementation process, Figure 1-Figure 4As shown, it includes a base 1, a vibrating screen 2 is installed on the base 1, a plurality of filter screen plates 3 are arranged from top to bottom inside the vibrating screen 2, the filter screen plates 3 are arranged obliquely, and a first discharge port 4 is arranged at the bottom of the filter screen plates 3, and the first discharge port 4 is opened on the vibrating screen 2, an inclined seat 20 is fixed at the bottom of the vibrating screen 2, and a vibration motor 22 is installed at the bottom of the vibrating screen 2, as shown in FIG. Figure 2 As shown, starting the vibration motor 22 can drive the vibration screen 2 to vibrate up and down.

[0027] A second discharge port 21 is provided on one side of the inclined seat 20, and the aperture of the filter sieve plate 3 gradually decreases from top to bottom. The calcium carbonate powder will fall from the feed pipe 5 to multiple filter sieve plates 3 in sequence for screening. After the screening, the powder with the smallest aperture left will fall onto the surface of the inclined seat 20.

[0028] A feed pipe 5 is provided on the top of the vibrating screen 2, and stands 6 are provided on both sides of the vibrating screen 2. The bottom of the stands 6 is fixed on the base 1, and a processing pipe 8 is fixed between the two stands 6 through a connecting seat 7. The top of the feed pipe 5 is located inside the processing pipe 8, and two crushing rollers 9 are movably provided inside the processing pipe 8.

[0029] Two transmission shafts 10 are arranged at intervals on one side of the processing tube 8, one end of the transmission shaft 10 is fixedly connected to the crushing roller 9, and a gear 11 is installed on the other end of the transmission shaft 10. The two gears 11 are meshed with each other. A crushing motor 12 is installed on the connecting seat 7, and the output end of the crushing motor 12 is connected to the transmission shaft 10 through a coupling. During screening, the staff can add raw materials into the processing tube 8 through the inclined auger elevator. When the crushing motor 12 is started, it will drive one of the transmission shafts 10 to rotate. Under the transmission action of the two gears 11, the two crushing rollers 9 rotate towards each other to crush the larger calcium carbonate powder in the raw materials to prevent it from clogging the filter screen 3.

[0030] A closing plate 13 is provided through one side of the processing tube 8, and the closing plate 13 is slidably connected to the processing tube 8, a moving seat 14 is fixed at the bottom of the closing plate 13, a driving motor 15 is installed on the connecting seat 7, a lead screw 16 is provided through the moving seat 14, the lead screw 16 is threadedly connected to the moving seat 14, one end of the lead screw 16 is movably connected to the surface of the processing tube 8 through a bearing, and the other end of the lead screw 16 is connected to the output end of the driving motor 15 through a coupling.

[0031] An anti-drop frame 17 is installed on the top of the processing tube 8. The anti-drop frame 17 is trumpet-shaped to prevent materials from falling to the outside of the vibrating screen 2.

[0032] A mounting ring 18 is fixed on the top of the vibrating screen 2, and a collecting groove 19 is provided on the surface of the mounting ring 18. An inclined seat 20 is fixed on the bottom of the vibrating screen 2, and a second discharge port 21 is provided on one side of the inclined seat 20. The powder falling from the gap between the feed pipe 5 and the processing pipe 8 can be collected through the collecting groove 19.

[0033] The working principle of the utility model is as follows: during screening, the staff can add raw materials into the processing tube 8 through the inclined auger elevator, and the crushing motor 12 starts to drive one of the transmission shafts 10 to rotate. Under the transmission action of the two gears 11, the two crushing rollers 9 rotate in opposite directions to crush the larger calcium carbonate powder in the raw materials to prevent it from clogging the filter screen 3;

[0034] After the crushing is completed, the staff can start the driving motor 15 to drive the screw 16 to rotate. Under the action of the screw 16, the closing plate 13 can seal the inside of the processing tube 8 to prevent the smaller calcium carbonate powder inside the vibrating screen 2 from escaping into the air from above the feed pipe 5. The crushed calcium carbonate powder will fall from the feed pipe 5 to multiple filter screens 3 in turn for screening, and the screened powder will be discharged from the corresponding discharge port.

[0035] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0036] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A high-precision screening device for calcium carbonate powder, comprising a base (1), It is characterized in that A vibrating screen (2) is installed on the base (1), a plurality of filter screen plates (3) are arranged inside the vibrating screen (2) from top to bottom, the filter screen plates (3) are arranged in an inclined manner, and a first discharge port (4) is arranged at the bottom of the filter screen plates (3), and the first discharge port (4) is opened on the vibrating screen (2); A feed pipe (5) is arranged at the top of the vibrating screen (2), and stands (6) are arranged on both sides of the vibrating screen (2). The bottom of the stands (6) is fixed on the base (1), and a processing pipe (8) is fixed between the two stands (6) via a connecting seat (7). The top of the feed pipe (5) is located inside the processing pipe (8), and two crushing rollers (9) are movably arranged inside the processing pipe (8).

2. The calcium carbonate powder high-precision screening device according to claim 1, It is characterized in that Two transmission shafts (10) are arranged at intervals on one side of the processing tube (8), one end of the transmission shaft (10) is fixedly connected to the crushing roller (9), and a gear (11) is installed on the other end of the transmission shaft (10), and the two gears (11) are meshed with each other; A crushing motor (12) is mounted on the connecting seat (7), and an output end of the crushing motor (12) is connected to the transmission shaft (10) via a coupling.

3. The calcium carbonate powder high-precision screening device according to claim 2, It is characterized in that A closing plate (13) is provided through one side of the processing tube (8), and the closing plate (13) is slidably connected to the processing tube (8), and a movable seat (14) is fixed at the bottom of the closing plate (13); A driving motor (15) is installed on the connecting seat (7), and a lead screw (16) is provided through the movable seat (14). The lead screw (16) is threadedly connected to the movable seat (14), one end of the lead screw (16) is movably connected to the surface of the processing tube (8) through a bearing, and the other end of the lead screw (16) is connected to the output end of the driving motor (15) through a coupling.

4. The calcium carbonate powder high-precision screening device according to claim 3, It is characterized in that An anti-drop frame (17) is installed on the top of the processing tube (8), and the anti-drop frame (17) is trumpet-shaped.

5. The calcium carbonate powder high-precision screening device according to claim 4, It is characterized in that A mounting ring (18) is fixed on the top of the vibrating screen (2), and a collecting groove (19) is provided on the surface of the mounting ring (18).

6. The calcium carbonate powder high-precision screening device according to claim 5, It is characterized in that A tilting seat (20) is fixed at the bottom of the vibration screen (2), a second discharge port (21) is arranged on one side of the tilting seat (20), and a vibration motor (22) is installed at the bottom of the vibration screen (2).

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