Efficient powder and slag separating device for cement grinding system

Abstract

The utility model relates to the technical field of cement grinding, and discloses an efficient powder and slag separating device for a cement grinding system, which comprises a screening box and a feed port, a first screening bin is arranged below the feed port, a screening motor is arranged on one side of the first screening bin, and the output end of the screening motor is fixedly connected with a driving shaft. The output end of the driving shaft penetrates through the side wall of the first screening bin and is rotationally connected with the first screening bin, and the outer wall of the driving shaft is fixedly connected with a spiral piece. The screening box, the feeding port, the first screening bin, the screening motor, the driving shaft, the discharging port, the first screening device and the second screening device are arranged and used in cooperation, when powder and slag are separated, raw materials are poured into the powder and slag separation device from the feeding port, and after the raw materials are separated through the first screening device, the driving shaft pushes the raw materials into the second screening device through a spiral piece; and residual cement powder in the powder slag can be screened out, so that the screening efficiency is improved, the powder slag and the cement powder are fully separated, and the production quality and the use effect of cement are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cement grinding, in particular to a powder-slag high-efficiency separation device for a cement grinding system. Background Art

[0002] Cement grinding is the last process in cement manufacturing and also the process that consumes the most electricity. Its main function is to grind cement clinker (and retarder, performance adjustment materials, etc.) to a suitable particle size (expressed in fineness, specific surface area, etc.), form a certain particle gradation, increase its hydration area, accelerate the hydration rate, and meet the requirements of cement paste coagulation and hardening.

[0003] But the following problems still exist:

[0004] During the cement grinding process, cement powder is easily mixed with powder residue. The mixture of powder residue and cement powder will reduce the production quality of cement and affect the later use effect of cement. Therefore, it is necessary to separate the powder residue from the cement powder. However, the current separation device generally uses a screen to separate the powder residue. The separation is not sufficient, so that the separated powder residue contains less cement powder and the working efficiency is low.

[0005] To this end, we propose a high-efficiency powder-slag separation device for cement grinding system to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a powder-slag high-efficiency separation device for a cement grinding system, which can fully separate the powder-slag from cement powder and improve the working efficiency.

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

[0008] A high-efficiency powder-slag separation device for a cement grinding system comprises a screening box and a feed port, a first screening bin is provided below the feed port, a screening motor is provided on one side of the first screening bin, a driving shaft is fixedly connected to the output end of the screening motor, and the output end of the driving shaft passes through the side wall of the first screening bin and is rotatably connected to the first screening bin, a spiral sheet is fixedly connected to the outer wall of the driving shaft, a first screening device is provided below the driving shaft, a discharge port is provided below the first screening device, and a second screening device is provided on one side of the first screening device.

[0009] Preferably, the first screening device includes a first screen plate arranged below the spiral sheet, and one end of the first screen plate passes through the side wall of the first screening bin and is slidably connected to the first screening bin, a driving cylinder is provided on one side of the screening box, and the output end of the driving cylinder is fixedly connected to the driving plate, and the side wall of the driving plate is fixedly connected to the side wall of the first screen plate.

[0010] Preferably, the second screening device includes a second screening bin opened on one side of the first screening bin, and the second screening bin is connected to the first screening bin, a side wall of the second screening bin located on one side of the first screen plate is fixedly connected with an inclined slide, and an inclined second screen plate is provided below the inclined slide, one end of the inclined second screen plate passes through the side wall of the second screening bin and is fixedly connected to the side wall of the driving plate, and the side wall of the inclined second screen plate is slidably connected to the side wall of the second screening bin, an inclined slide is opened below the inclined second screen plate, and the inclined slide is connected to the discharge port, and a powder residue drawer is slidably connected to the bottom surface of the second screening bin.

[0011] Preferably, a handle is fixedly connected to the side wall of the powder and residue drawer.

[0012] Preferably, the side wall of the first screening bin is an arc-shaped surface.

[0013] Preferably, the inner wall of the discharge port below the first screen plate is an inclined surface.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The utility model is used in coordination with the setting of a screening box, a feed port, a first screening bin, a screening motor, a driving shaft, a discharge port, a first screening device and a second screening device. When powder-slag separation is performed, the raw materials are poured into the feed port. After separation by the first screening device, the driving shaft pushes the raw materials into the second screening device through the spiral sheet, and the cement powder remaining in the powder-slag is screened out, thereby improving the screening efficiency, fully separating the powder-slag from the cement powder, and improving the production quality and use effect of the cement. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional structural schematic diagram of a powder-slag efficient separation device for a cement grinding system proposed by the utility model;

[0017] Figure 2 This is a side structural schematic diagram of a powder-slag efficient separation device for a cement grinding system proposed by the utility model;

[0018] Figure 3 This is a schematic diagram of the side cross-sectional structure of a high-efficiency powder-slag separation device for a cement grinding system proposed by the utility model;

[0019] Figure 4 This is a right side cross-sectional structural schematic diagram of a powder-slag efficient separation device for a cement grinding system proposed by the utility model.

[0020] In the figure: 1. screening box; 2. feed inlet; 3. screening motor; 4. drive shaft; 5. discharge port; 6. first screen plate; 7. drive plate; 8. drive cylinder; 9. inclined slide plate; 10. inclined second screen plate; 11. inclined slideway; 12. powder and residue drawer; 13. pull handle; 14. first screening bin; 15. second screening bin. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-4 A high-efficiency powder-slag separation device for a cement grinding system comprises a screening box 1 and a feed port 2, a first screening bin 14 is provided below the feed port 2, a screening motor 3 is provided on one side of the first screening bin 14, a driving shaft 4 is fixedly connected to the output end of the screening motor 3, and the output end of the driving shaft 4 passes through the side wall of the first screening bin 14 and is rotatably connected to the first screening bin 14, a spiral sheet is fixedly connected to the outer wall of the driving shaft 4, a first screening device is provided below the driving shaft 4, a discharge port 5 is provided below the first screening device, and a second screening device is provided on one side of the first screening device.

[0023] It can be seen from the above structure that; by setting the screening box 1, the feed port 2, the first screening bin 14, the screening motor 3, the drive shaft 4, the discharge port 5, the first screening device and the first screening device, etc., when the powder and slag separation is carried out, the raw materials are poured from the feed port 2. After separation by the first screening device, the drive shaft 4 will push the raw materials into the second screening device through the spiral sheet, and the cement powder remaining in the powder and slag will be screened out, thereby improving the screening efficiency, making the powder and slag fully separated from the cement powder, and improving the production quality and use effect of cement.

[0024] Furthermore, the first screening device includes a first sieve plate 6 arranged below the spiral sheet, and one end of the first sieve plate 6 passes through the side wall of the first screening bin 14 and is slidably connected to the first screening bin 14. A driving cylinder 8 is provided on one side of the screening box 1, and the output end of the driving cylinder 8 is fixedly connected to the driving plate 7, and the side wall of the driving plate 7 is fixedly connected to the side wall of the first sieve plate 6. By setting the first sieve plate 6, the first screening bin 14, the driving cylinder 8 and the driving plate 7 for use in combination, when the raw material enters the first screening bin 14, it will fall on the top of the first sieve plate 6. At this time, the driving cylinder 8 will push the driving plate 7 to move back and forth, and then push the first sieve plate 6 to move back and forth, so that the cement powder in the raw material located on the first sieve plate 6 is vibrated and slides down, and slides out of the screening box 1 through the first sieve plate 6 and the discharge port 5, and the remaining powder residue will be pushed by the spiral sheet into the second screening device for further screening, so that the powder residue and the cement powder are fully separated, thereby improving the separation efficiency.

[0025] Furthermore, the second screening device includes a second screening bin 15 opened on one side of the first screening bin 14, and the second screening bin 15 is connected to the first screening bin 14, a side wall of the second screening bin 15 located on one side of the first screen plate 6 is fixedly connected with an inclined slide plate 9, and an inclined second screen plate 10 is provided below the inclined slide plate 9, one end of the inclined second screen plate 10 passes through the side wall of the second screening bin 15 and is fixedly connected to the side wall of the driving plate 7, and the side wall of the inclined second screen plate 10 is slidably connected to the side wall of the second screening bin 15, an inclined slideway 11 is opened below the inclined second screen plate 10, and the inclined slideway 11 is connected to the discharge port 5, and a powder residue drawer 12 is slidably connected to the bottom surface of the second screening bin 15; by arranging the second screening bin 15, the inclined slide plate 9, the inclined first The two sieve plates 10, the inclined slide 11 and the powder residue drawer 12 are used in combination. The powder residue preliminarily separated by the first screening bin 14 will be pushed out of the first screening bin 14 by the spiral sheet, and slide onto the inclined second sieve plate 10 through the inclined slide plate 9. The side wall of the inclined second sieve plate 10 is fixedly connected to the side wall of the driving plate 7, so that the driving cylinder 8 drives the first sieve plate 6 to slide back and forth while the inclined second sieve plate 10 slides back and forth, so that the cement powder remaining in the powder residue falling on the inclined second sieve plate 10 is shaken off and falls into the inclined slide 11. After that, the cement powder will slide into the discharge port 5 and be discharged from the screening box 1, while the powder residue will fall into the powder residue drawer 12, which is convenient for centralized processing. The structure is simple, the operation is convenient, the cement powder and the powder residue are fully separated, and the separation efficiency is improved.

[0026] Furthermore, a handle 13 is fixedly connected to the side wall of the powder and residue drawer 12 ; by providing the handle 13 , it is convenient to pull and take out the powder and residue drawer 12 .

[0027] Furthermore, the side wall of the first screening bin 14 is an arc-shaped surface; the design of the arc-shaped surface allows the raw materials falling into the first screening bin 14 to slide to the middle position of the first screen plate 6, so that they can be easily pushed out of the first screening bin 14 by the spiral sheet and will not accumulate on both sides of the first screen plate 6, thereby improving work efficiency.

[0028] Furthermore, the inner wall of the discharge port 5 below the first sieve plate 6 is an inclined surface; the design of the inclined surface allows the cement powder shaken off by the first sieve plate 6 to directly slide to the discharge port 5 without causing accumulation.

[0029] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0030] 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 separating cement powder and slag in a cement grinding system, comprising a screening box (1) and a feed port (2), characterized in that: A first screening bin (14) is provided below the feed port (2), and a screening motor (3) is provided on one side of the first screening bin (14); an output end of the screening motor (3) is fixedly connected to a drive shaft (4), and the output end of the drive shaft (4) passes through a side wall of the first screening bin (14) and is rotatably connected to the first screening bin (14); a spiral sheet is fixedly connected to an outer wall of the drive shaft (4), and a first screening device is provided below the drive shaft (4), and a discharge port (5) is provided below the first screening device, and a second screening device is provided on one side of the first screening device.

2. The device for separating powder and slag from cement grinding system according to claim 1, characterized in that: The first screening device comprises a first screen plate (6) arranged below the spiral sheet, and one end of the first screen plate (6) penetrates through the side wall of the first screening bin (14) and is slidably connected to the first screening bin (14); a driving cylinder (8) is provided on one side of the screening box (1), and a driving plate (7) is fixedly connected to the output end of the driving cylinder (8); and the side wall of the driving plate (7) is fixedly connected to the side wall of the first screen plate (6).

3. The device for separating powder and slag from cement grinding system according to claim 2, characterized in that: The second screening device comprises a second screening bin (15) provided on one side of the first screening bin (14), and the second screening bin (15) is connected to the first screening bin (14); a side wall of the second screening bin (15) located on one side of the first screen plate (6) is fixedly connected to an inclined slide plate (9), and an inclined second screen plate (10) is provided below the inclined slide plate (9); one end of the inclined second screen plate (10) passes through the side wall of the second screening bin (15) and is fixedly connected to the side wall of the driving plate (7); the side wall of the inclined second screen plate (10) is slidably connected to the side wall of the second screening bin (15); an inclined slideway (11) is provided below the inclined second screen plate (10), and the inclined slideway (11) is connected to the discharge port (5); and a powder residue drawer (12) is slidably connected to the bottom surface of the second screening bin (15).

4. The device for separating powder and slag from cement grinding system according to claim 3 is characterized in that: A handle (13) is fixedly connected to the side wall of the powder-residue drawer (12).

5. A powder-slag efficient separation device for cement grinding system according to claim 1 or 2, characterized in that: The side wall of the first screening bin (14) is an arc-shaped surface.

6. A device for separating powder and slag from cement grinding system according to claim 2 or 3, characterized in that: The inner wall of the discharge port (5) located below the first sieve plate (6) is an inclined surface.

Images