Screening device for high-whiteness calcium carbonate raw materials

Abstract

The utility model relates to the technical field of high-whiteness calcium carbonate raw material screening, in particular to a high-whiteness calcium carbonate raw material screening device which comprises a bottom plate and a box body, the upper end of the outer wall of the bottom plate is fixedly connected with the box body through a support, and a high-whiteness calcium carbonate raw material grinding structure is arranged in the middle of the left side of the outer wall of the box body. A high-whiteness calcium carbonate raw material drying structure is arranged at the lower end of the right side of the outer wall of the box. According to the screening device for the high-whiteness calcium carbonate raw material, through a high-whiteness calcium carbonate raw material drying structure, an external power source of an air heater is connected, the air heater is started to convey hot air into a vertical pipe, and then the hot air enters the vertical pipe through a through hole in the right end of a spiral blade and is sprayed to the high-whiteness calcium carbonate raw material from a plurality of second net plates; and finally, hot air is sprayed to the high-whiteness calcium carbonate raw material through the vertical pipes and the transverse pipes by utilizing the air heater, water in the high-whiteness calcium carbonate raw material can be dried, the fluidity of the high-whiteness calcium carbonate raw material is improved, the probability that the high-whiteness calcium carbonate raw material blocks the screening net is avoided, and then the screening efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of screening technology for high-whiteness calcium carbonate raw materials, specifically a screening device for high-whiteness calcium carbonate raw materials. Background Technology

[0002] High-whiteness calcium carbonate is a calcium carbonate product with high purity, high whiteness, and high fineness. It is made by grinding natural carbonate minerals such as calcite, marble, and limestone. In the processing of high-whiteness calcium carbonate raw materials, screening is required to improve the quality of use. Therefore, a screening device for high-whiteness calcium carbonate raw materials is provided.

[0003] For example, a screening device for high-whiteness calcium carbonate raw materials, with announcement number "CN221832786U", uses a servo motor to drive a comb-shaped stirring block and a spiral blade to rotate, continuously stirring and dispersing the calcium carbonate raw material on a circular screen plate, improving the screening effect. The spiral blade then discharges the calcium carbonate raw material retained on the circular screen plate through an inclined chute, eliminating the need to disassemble the screening screen and process the retained calcium carbonate, saving time and labor. However, the above-mentioned device lacks the ability to crush high-whiteness calcium carbonate raw material particles. During the screening process, the screened high-whiteness calcium carbonate raw material particles are output and collected, requiring subsequent transportation to external equipment for re-grinding. This results in low production efficiency of high-whiteness calcium carbonate. Furthermore, it lacks the ability to dry high-whiteness calcium carbonate raw materials. When screening relatively moist high-whiteness calcium carbonate raw materials, the low fluidity of the moist material can cause blockage during the process of passing through the filter screen, thereby reducing the screening efficiency. Utility Model Content

[0004] The purpose of this invention is to solve the problems of the need for subsequent conveying to external equipment for re-grinding, which leads to low production efficiency of high-white calcium carbonate and the lack of drying performance for high-white calcium carbonate raw materials. When it is necessary to screen relatively moist high-white calcium carbonate raw materials, the low fluidity of the moist high-white calcium carbonate raw materials will cause blockage during the process of passing through the filter screen, thereby reducing the screening efficiency of high-white calcium carbonate raw materials. Therefore, a screening device for high-white calcium carbonate raw materials is proposed.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A screening device for high-whiteness calcium carbonate raw materials is designed, including a base plate and a box body. The upper end of the outer wall of the base plate is fixedly connected to the box body through a bracket. A high-whiteness calcium carbonate raw material grinding structure is provided in the middle left side of the outer wall of the box body, and a high-whiteness calcium carbonate raw material drying structure is provided in the lower right side of the outer wall of the box body. The middle lower end of the box body is fixedly connected to the discharge port, and the right upper end of the box body is fixedly connected to the feed port.

[0007] Preferably, the high-whiteness calcium carbonate raw material drying structure includes a hot air blower, the air outlet of the hot air blower is fixedly connected to a vertical pipe, the inner wall of the vertical pipe is rotatably connected to multiple spiral blades through a sealed bearing, multiple second screen plates are fixedly connected to the inner wall of the spiral blades, the outer walls of the multiple spiral blades are rotatably connected to the box body through a sealed bearing, and multiple screening screens are fixedly connected to the inner wall of the box body.

[0008] Preferably, the left side of the outer wall of the hot air blower is fixedly connected to the housing via a bracket, and a first mesh plate is fixedly connected to the upper left side of the inner wall of the housing.

[0009] Preferably, the high-whiteness calcium carbonate raw material grinding structure includes a second motor, a first gear fixedly connected to the end of the output shaft of the second motor, the outer wall of the first gear meshing with two second gears, the outer wall of the second gear meshing with a third gear, a grinding roller fixedly connected to the right end of the rotating shaft of the third gear, the right end of the grinding roller fixedly connected to a spiral blade, and a grinding block fixedly connected to the left side of the inner wall of the screening screen.

[0010] Preferably, the outer wall of the second motor is fixedly connected to the housing via a bracket, and the rotating shafts of the first gear and the second gear are rotatably connected to the housing via sealed bearings.

[0011] Preferably, the two third gear rotating shafts are rotatably connected to the housing via sealed bearings.

[0012] The present invention proposes a screening device for high-whiteness calcium carbonate raw materials, which has the following advantages: Through the high-whiteness calcium carbonate raw material drying structure, the external power supply of the hot air blower is connected, and the hot air blower is started to deliver hot air into the vertical pipe. Then, the hot air enters the interior through the through hole at the right end of the spiral blade and is sprayed onto the high-whiteness calcium carbonate raw material through multiple second screen plates. Finally, the hot air blower sprays the hot air onto the high-whiteness calcium carbonate raw material through the vertical pipe and horizontal pipe, which can dry the internal moisture of the high-whiteness calcium carbonate raw material, increase the fluidity of the high-whiteness calcium carbonate raw material, effectively avoid the probability of the high-whiteness calcium carbonate raw material clogging the screening screen, and thus improve the screening efficiency.

[0013] Through the high-whiteness calcium carbonate raw material grinding structure, the second motor starts and drives the first gear to rotate in the housing through sealed bearings. The rotation of the first gear drives two second gears to rotate in the housing through sealed bearings. The rotation of the second gear drives the third gear to rotate in the housing through sealed bearings. The rotation of the first and third gears drives the grinding rollers to rotate, which in turn drives the spiral blades to rotate in the housing and vertical pipe through sealed bearings. The rotation of the spiral blades conveys the high-whiteness calcium carbonate raw material to the left. At this time, the high-whiteness calcium carbonate raw material falls through the top screening screen to the middle screening screen, and then falls through the middle screening screen to the bottom screening screen. Finally, the first motor drives multiple grinding rollers to rotate on the upper part of the grinding block, which can grind the high-whiteness calcium carbonate raw material flowing to the upper part of the grinding block. This avoids the need for existing technology to collect and transport the screened high-whiteness calcium carbonate raw material to external grinding equipment for further grinding, thereby improving the production efficiency of high-whiteness calcium carbonate raw material. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 for Figure 1 A front sectional view;

[0016] Figure 3 for Figure 2 Enlarged view of A in the middle;

[0017] Figure 4 A schematic diagram showing the connection relationship between the spiral blades, the screening screen, and the second screen plate;

[0018] Figure 5 This is a schematic diagram showing the connection relationship between the second motor, the first gear, and the second gear.

[0019] In the diagram: 1. Drying structure for high-whiteness calcium carbonate raw materials, 101. Hot air blower, 102. Vertical pipe, 103. Spiral blade, 104. Screening screen, 105. Second screen plate; 2. Grinding structure for high-whiteness calcium carbonate raw materials, 201. Second motor, 202. First gear, 203. Second gear, 204. Third gear, 205. Grinding roller, 206. Grinding block, 3. Base plate, 4. Box body, 5. Discharge port, 6. First screen plate, 7. Feed port. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings:

[0021] See attached document Figure 1-5In this embodiment, a screening device for high white calcium carbonate raw materials includes a bottom plate 3 and a box 4. The upper end of the outer wall of the bottom plate 3 is fixedly connected to the box 4 through a bracket. A high white calcium carbonate raw material grinding structure 2 is provided in the middle of the left side of the outer wall of the box 4, and a high white calcium carbonate raw material drying structure 1 is provided in the lower right side of the outer wall of the box 4.

[0022] The lower middle part of the box 4 is fixedly connected to the discharge port 5. A valve is installed in the middle of the discharge port 5. The upper right side of the box 4 is fixedly connected to the feed port 7. A top cover is fastened to the upper end of the feed port 7. The outer left side of the hot air blower 101 is fixedly connected to the box 4 through a bracket. The upper left side of the inner wall of the box 4 is fixedly connected to the first mesh plate 6. The first mesh plate 6 is made of stainless steel plate with through holes.

[0023] The outer wall of the second motor 201 is fixedly connected to the housing 4 via a bracket. The rotating shafts of the first gear 202 and the second gear 203 are rotatably connected to the housing 4 via sealed bearings. The rotating shafts of the two third gears 204 are rotatably connected to the housing 4 via sealed bearings. The first gear 202, the second gear 203, and the third gear 204 can rotate inside the housing 4 via sealed bearings.

[0024] See attached document Figure 1-4 The high-whiteness calcium carbonate raw material drying structure 1 includes a hot air blower 101. The hot air blower 101 can meet the actual needs of the operation. The air outlet of the hot air blower 101 is fixedly connected to the vertical pipe 102. The inner wall of the vertical pipe 102 is rotatably connected to multiple spiral blades 103 through a sealed bearing. Multiple second mesh plates 105 are fixedly connected to the inner wall of the spiral blades 103. The second mesh plates 105 are made of stainless steel plates with through holes on the surface.

[0025] The spiral blade 103 can rotate within the vertical pipe 102 via a sealed bearing. The outer walls of multiple spiral blades 103 are rotatably connected to the housing 4 via sealed bearings. The spiral blades 103 can rotate within the housing 4 via sealed bearings. Multiple screening screens 104 are fixedly connected to the inner wall of the housing 4. The screening screens 104 are made of stainless steel plates with through holes on the surface. The through holes of the multiple screening screens 104 are graded from top to bottom as large, medium and small. The specific size of the through holes is determined according to actual needs and meets the working requirements.

[0026] See attached document Figure 1-2 4-5: The high white calcium carbonate raw material grinding structure 2 includes a second motor 201. The second motor 201 can meet the working requirements according to actual needs. The output shaft end of the second motor 201 is fixedly connected to a first gear 202. The first motor 201 can drive the first gear 202 to rotate. The outer wall of the first gear 202 is meshed with two second gears 203.

[0027] The rotation of the first gear 202 can drive the rotation of the second gear 203. The outer wall of the second gear 203 is meshed with the third gear 204. The second gear 203 can drive the third gear 204 to rotate. A grinding roller 205 is fixedly connected to the right end of the rotating shaft of the third gear 204. The right end of the grinding roller 205 is fixedly connected to the spiral blade 103. A grinding block 206 is fixedly connected to the left side of the inner wall of the screening screen 104. The third gear 204 can drive the grinding roller 205 to rotate, thereby grinding the high white calcium carbonate raw material particles on the upper end of the grinding block 206.

[0028] Working principle:

[0029] Screening and grinding of high-whiteness calcium carbonate raw materials:

[0030] When it is necessary to screen the high white calcium carbonate raw material, open the top cover that is fastened to the upper end of the feed port 7, pour an appropriate amount of high white calcium carbonate raw material into the box 4 and fasten the top cover back to seal the feed port 7. Then connect the external power supply of the second motor 201. The second motor 201 starts and drives the first gear 202 to rotate in the box 4 through the sealed bearing. The rotation of the first gear 202 drives the two second gears 203 to rotate in the box 4 through the sealed bearing.

[0031] The rotation of the second gear 203 drives the third gear 204 to rotate within the housing 4 via a sealed bearing. The rotation of the first gear 202 and the third gear 204 respectively drives the grinding roller 205 to rotate, which in turn drives the spiral blade 103 to rotate within the housing 4 and the vertical pipe 102 via a sealed bearing. The rotation of the spiral blade 103 conveys the high-white calcium carbonate raw material to the left. At this time, the high-white calcium carbonate raw material will fall through the top screening screen 10 to the middle screening screen 10, and then fall through the middle screening screen 10 to the bottom screening screen 10. This movement can perform multi-stage screening of the high-white calcium carbonate raw material. At the same time, the particles inside the high-white calcium carbonate raw material will be conveyed to the grinding block 206 by the spiral blade.

[0032] Then, multiple grinding rollers 205 perform multi-stage grinding on the high white calcium carbonate raw material particles on the grinding block 206. After grinding, the high white calcium carbonate raw material will gradually fall down through the screening screen 104. The through holes of the multiple screening screens 104 are classified from top to bottom as large, medium and small. The specific size of the through holes is determined according to actual needs and meets the working requirements. After grinding and screening, the high white calcium carbonate raw material will fall to the lower end of the box 4 for collection. This movement can be used to screen and grind the high white calcium carbonate raw material.

[0033] Drying process for high-whiteness calcium carbonate raw materials:

[0034] When the spiral blade 103 rotates to convey and screen the high-whiteness calcium carbonate raw material, the external power supply of the hot air blower 101 is turned on. The hot air blower 101 starts and conveys hot air into the vertical pipe 102. Then, the hot air enters the spiral blade 103 through the through hole at the right end and is sprayed onto the high-whiteness calcium carbonate raw material through multiple second screen plates 105. This movement can dry the high-whiteness calcium carbonate raw material. At the same time, the sprayed hot air is discharged through the first screen plate 6, which can also block the scattered high-whiteness calcium carbonate raw material. When it is necessary to discharge the high-whiteness calcium carbonate raw material, the external material box is placed at the lower end of the discharge port 5, and then the valve in the middle of the discharge port 5 is opened to discharge and collect it. Although this utility model has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail can be made within the scope of the claims.

Claims

1. A screening device for high-whiteness calcium carbonate raw materials, comprising a base plate (3) and a box body (4), wherein the upper end of the outer wall of the base plate (3) is fixedly connected to the box body (4) via a bracket, characterized in that: The outer wall of the box (4) is provided with a high white calcium carbonate raw material grinding structure (2) in the middle of the left side, and a high white calcium carbonate raw material drying structure (1) in the lower right side of the outer wall of the box (4). The lower middle of the box (4) is fixedly connected to the discharge port (5), and the upper right side of the box (4) is fixedly connected to the feed port (7).

2. The screening device for high-whiteness calcium carbonate raw materials according to claim 1, characterized in that: The high-whiteness calcium carbonate raw material drying structure (1) includes a hot air blower (101), the air outlet of the hot air blower (101) is fixedly connected to the vertical pipe (102), the inner wall of the vertical pipe (102) is rotatably connected to multiple spiral blades (103) through a sealed bearing, multiple second screen plates (105) are fixedly connected to the inner wall of the spiral blades (103), the outer walls of the multiple spiral blades (103) are rotatably connected to the box body (4) through a sealed bearing, and multiple screening screens (104) are fixedly connected to the inner wall of the box body (4).

3. The screening device for high-whiteness calcium carbonate raw materials according to claim 2, characterized in that: The hot air blower (101) is fixedly connected to the box (4) on the left side of the outer wall via a bracket, and a first mesh plate (6) is fixedly connected to the upper left side of the inner wall of the box (4).

4. The screening device for high-whiteness calcium carbonate raw materials according to claim 2, characterized in that: The high-whiteness calcium carbonate raw material grinding structure (2) includes a motor (201), a first gear (202) is fixedly connected to the end of the output shaft of the motor (201), the outer wall of the first gear (202) is meshed with two second gears (203), the outer wall of the second gear (203) is meshed with a third gear (204), a grinding roller (205) is fixedly connected to the right end of the rotating shaft of the third gear (204), the right end of the grinding roller (205) is fixedly connected to the spiral blade (103), and a grinding block (206) is fixedly connected to the left side of the inner wall of the screening screen (104).

5. The screening device for high-whiteness calcium carbonate raw materials according to claim 4, characterized in that: The outer wall of the motor (201) is fixedly connected to the housing (4) by a bracket, and the rotating shafts of the first gear (202) and the second gear (203) are rotatably connected to the housing (4) by a sealed bearing.

6. The screening device for high-whiteness calcium carbonate raw materials according to claim 4, characterized in that: The two rotating shafts of the third gear (204) are rotatably connected to the housing (4) via sealed bearings.

Images