Multistage screening device for calcium carbonate powder

Abstract

The calcium carbonate powder multi-stage screening device comprises a supporting base, a screening box and a feeding port, the feeding port is formed in the middle of the top end of the screening box, the screening box is installed in the middle of the top end of the supporting base, and a side connecting plate is installed on the inner wall of the screening box through a vibrating mechanism; screen plates are fixedly mounted at the upper ends and the lower ends of the inner side walls of the side connecting plates correspondingly, and the diameters of screen holes formed in the two sets of screen plates are different. After calcium carbonate powder enters the screening box from the feeding port, the gravity action is matched with the elastic potential energy of the reset springs, so that the two groups of screening plates are driven to vibrate and screen up and down on the inner side of the screening box, the calcium carbonate powder is subjected to hierarchical screening treatment, and the percent of pass of the calcium carbonate powder is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of screening devices, in particular to a multi-stage screening device for calcium carbonate powder. Background Art

[0002] Calcium carbonate, also known as heavy calcium, is made by grinding natural carbonate minerals such as calcite, marble, and limestone. In the production process of calcium carbonate powder, there is a process that requires screening it.

[0003] Most of the current screening devices generally only screen the raw materials once, resulting in a low pass rate of the screened calcium carbonate powder.

[0004] Therefore, we proposed a multi-stage screening device for calcium carbonate powder to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the problem that the qualified rate of calcium carbonate powder screened out in the prior art is too low, and proposes the following technical solutions:

[0006] A multi-stage screening device for calcium carbonate powder comprises a support seat, a screening box and a feed port, wherein the feed port is installed in the middle of the top of the screening box, the screening box is installed in the middle of the top of the support seat, the inner wall of the screening box is installed with a side connecting plate through a vibration mechanism, and the upper and lower ends of the inner wall of the side connecting plate are fixedly installed with screen plates, and the diameters of the screen holes opened on the two groups of the screen plates are different.

[0007] Two groups of sieve plates with different mesh diameters are fixedly connected to the middle upper end of the inner wall of the screening box through side connecting plates, so that the calcium carbonate powder entering the screening box from the feed inlet is screened through the multi-stage sieve plates.

[0008] As a preferred embodiment of the above technical solution, the vibration mechanism includes a slider fixedly installed in the middle of the outer wall of the side connecting plate, and the sliders are slidably connected to the outer wall of the slide rod, the upper and lower ends of the slide rod are fixedly installed in the middle of the inner wall of the limiting groove, and the limiting groove is symmetrically arranged at the middle upper end of the inner wall of the support seat, and the middle of the upper and lower ends of the outer wall of the slider are welded with a return spring, and the outer top end of the return spring is welded to the middle of the inner wall of the limiting groove, and the middle part of the return spring is surrounded by the outer wall of the slide rod.

[0009] After the calcium carbonate powder enters the screening box from the feed inlet, the gravity and the elastic potential energy of the reset spring drive the two sets of screen plates to vibrate up and down inside the screening box, so that the calcium carbonate powder is screened in layers to ensure the qualified rate of the calcium carbonate powder.

[0010] As a preferred embodiment of the above technical solution, a connecting plate is fixedly installed in the middle of the inner wall of the side connecting plate, and the inner side of the connecting plate is installed in the middle of the outer wall of the guide plate, and the top of the guide plate is installed on both sides of the bottom end of the upper screen plate.

[0011] Under the guidance of the guide plate, the calcium carbonate powder that has been screened by the top sieve plate is guided, ensuring that the calcium carbonate powder that has been preliminarily screened can stably enter the inner side of the lower sieve plate, thereby ensuring the working efficiency of the device during use.

[0012] As a preferred embodiment of the above technical solution, balls are rollingly embedded in the upper and lower ends of the outer side wall of the side connecting plate, and the outer side wall of the ball bearings rolls against the inner wall of the support seat.

[0013] Under the rolling action of the balls, the side connecting plate drives the screen plate to move stably and smoothly inside the supporting seat, which is ensured.

[0014] As a preferred embodiment of the above technical solution, the bottom end of the screening box is located at the top of the collecting trough, the bottom end of the collecting trough is placed on the top of the support plate, both sides of the support plate are installed at the middle lower end of the inner wall of the support seat, and the outer side walls of the collecting trough are fixedly installed with side pull handles.

[0015] The calcium carbonate powder that has been screened in multiple layers is moved to the inner side of the collecting tank for carrying and storage due to the special shape of the lower middle end of the inner wall of the screening box. At the same time, the side pull handle is used to facilitate the pulling and placement of the collecting tank.

[0016] The beneficial effects of the utility model are:

[0017] After the calcium carbonate powder enters the screening box from the feed inlet, the gravity and the elastic potential energy of the reset spring drive the two sets of screen plates to vibrate up and down inside the screening box, so that the calcium carbonate powder is screened in layers to ensure the qualified rate of the calcium carbonate powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The schematic diagram of the front cross-sectional structure provided by the embodiment of the utility model is shown;

[0019] Figure 2 The utility model embodiment provided by the present invention Figure 1 The enlarged structural diagram at A in the middle;

[0020] Figure 3 The utility model embodiment provided by the present invention Figure 1 Enlarged structural diagram at B in the middle.

[0021] Legend:

[0022] 1. Support seat; 2. Screening box; 3. Feeding port; 4. Screen plate; 5. Guide plate; 6. Connecting plate; 7. Side connecting plate; 8. Slider; 9. Sliding rod; 10. Reset spring; 11. Limiting slot; 12. Collecting trough; 13. Support plate; 14. Side handle; 15. Ball bearing. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution of the present utility model will be clearly and completely described below in conjunction with the embodiments.

[0024] like Figure 1 , Figure 2 and Figure 3 As shown, in the embodiment of the utility model: it includes a support base 1, a screening box 2 and a feed port 3, the feed port 3 is installed in the middle of the top of the screening box 2, the screening box 2 is installed in the middle of the top of the support base 1, the inner wall of the screening box 2 is installed with a side connecting plate 7 through a vibration mechanism, and the upper and lower ends of the inner wall of the side connecting plate 7 are fixedly installed with sieve plates 4, and the diameters of the sieve holes opened on the two groups of sieve plates 4 are different.

[0025] Two groups of sieve plates 4 with different mesh diameters are fixedly connected to the middle upper end of the inner wall of the screening box 2 through the side connecting plate 7, so that the calcium carbonate powder entering the screening box 2 from the feed inlet 3 is screened through the multi-stage sieve plates 4.

[0026] like Figure 2 As shown, the vibration mechanism includes a slider 8 fixedly mounted on the middle part of the outer wall of the side connecting plate 7, and the sliders 8 are slidably connected to the outer wall of the slide bar 9, and the upper and lower ends of the slide bar 9 are fixedly mounted on the middle part of the inner wall of the limiting groove 11, and the limiting groove 11 is symmetrically arranged at the middle upper end of the inner wall of the support seat 1. The middle parts of the upper and lower ends of the outer wall of the slider 8 are welded with reset springs 10, and the outer top ends of the reset springs 10 are welded to the middle part of the inner wall of the limiting groove 11, and the middle part of the reset springs 10 surrounds the outer wall of the slide bar 9.

[0027] After the calcium carbonate powder enters the screening box 2 from the feed port 3, the gravity and the elastic potential energy of the reset spring 10 drive the two sets of screen plates 4 to vibrate up and down inside the screening box 2, so that the calcium carbonate powder is screened in layers to ensure the qualified rate of the calcium carbonate powder.

[0028] As Figure 2 As shown, a connecting plate 6 is fixedly installed in the middle of the inner wall of the side connecting plate 7, and the inner side of the connecting plate 6 is installed in the middle of the outer wall of the guide plate 5, and the top of the guide plate 5 is installed on both sides of the bottom end of the upper sieve plate 4.

[0029] Under the guidance of the guide plate 5, the calcium carbonate powder screened by the top sieve plate 4 is guided, ensuring that the calcium carbonate powder preliminarily screened stably enters the inner side of the lower sieve plate 4, thereby ensuring the working efficiency of the device during use.

[0030] like Figure 3 As shown, the upper and lower ends of the outer side wall of the side connecting plate 7 are both rollingly embedded with balls 15, and the outer side walls of the balls 15 are rollingly abutted against the inner wall of the supporting seat 1.

[0031] Under the rolling action of the balls 15 , the side connecting plates 7 drive the screen plate 4 to move stably and smoothly inside the support seat 1 .

[0032] like Figure 1 As shown, the bottom end of the screening box 2 is located at the top end of the collecting trough 12, and the bottom end of the collecting trough 12 is placed on the top end of the support plate 13. Both sides of the support plate 13 are installed at the lower middle end of the inner wall of the support seat 1, and the outer side walls of the collecting trough 12 are fixedly installed with side pull handles 14.

[0033] The multi-layer screened calcium carbonate powder is moved to the inner side of the collecting tank 12 for carrying and storage under the special shape of the lower middle end of the inner wall of the screening box 2, and the side pull handle 14 is held to facilitate pulling and placing the collecting tank 12.

[0034] The above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it.

Claims

1. A multi-stage screening device for calcium carbonate powder, comprising a support base (1), a screening box (2) and a feed inlet (3), Features: The screening box (2) is provided with a feed port (3) at the middle of the top end, the screening box (2) is installed at the middle of the top end of the support seat (1), the inner wall of the screening box (2) is provided with a side connecting plate (7) via a vibration mechanism, and the upper and lower ends of the inner wall of the side connecting plate (7) are fixedly provided with a screening plate (4), and the diameters of the screening holes provided on the two groups of the screening plates (4) are different.

2. The calcium carbonate powder multi-stage screening device according to claim 1, It is characterized in that The vibration mechanism comprises a slider (8) fixedly mounted on the middle of the outer wall of the side connecting plate (7), and the slider (8) is slidably connected to the outer wall of the slide bar (9), the upper and lower ends of the slide bar (9) are fixedly mounted on the middle of the inner wall of the limiting slot (11), the limiting slot (11) is symmetrically arranged at the middle upper end of the inner wall of the support seat (1), the middle of the upper and lower ends of the outer wall of the slider (8) are welded with a return spring (10), and the outer top end of the return spring (10) is welded to the middle of the inner wall of the limiting slot (11), and the middle of the return spring (10) surrounds the outer wall of the slide bar (9).

3. The calcium carbonate powder multi-stage screening device according to claim 1, It is characterized in that A connecting plate (6) is fixedly mounted in the middle of the inner wall of the side connecting plate (7), and the inner side of the connecting plate (6) is mounted in the middle of the outer wall of the guide plate (5), and the top of the guide plate (5) is mounted on both sides of the bottom end of the upper sieve plate (4).

4. The calcium carbonate powder multi-stage screening device according to claim 1, It is characterized in that Balls (15) are rollingly embedded in the upper and lower ends of the outer side wall of the side connecting plate (7), and the outer side walls of the balls (15) are rollingly abutted against the inner wall of the support seat (1).

5. The calcium carbonate powder multi-stage screening device according to claim 1, It is characterized in that The bottom end of the screening box (2) is located at the top end of the collecting trough (12), and the bottom end of the collecting trough (12) is placed on the top end of the support plate (13). Both sides of the support plate (13) are installed at the lower end of the middle part of the inner wall of the support seat (1), and the outer side walls of the collecting trough (12) are fixedly installed with side handles (14).

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