Filtering type cement decomposing furnace

Abstract

The utility model discloses a filter type cement decomposing furnace which comprises a furnace body, a pulverized coal inlet pipe is connected to the outer wall of one side of the furnace body, a mounting shell is connected to the middle of the pulverized coal inlet pipe, a partition plate is fixed in the mounting shell, a filter grate is fixed between the partition plate and the inner wall of one side of the mounting shell, and a first roller column and a second roller column are arranged on the side, away from the filter grate, of the partition plate. The first roller column and the second roller column are connected with the mounting shell through bearings, crushing teeth distributed in a central symmetry mode are fixed to the outer wall of the first roller column and the outer wall of the second roller column, a first motor is fixed to the outer wall of one side of the mounting shell, and an output shaft of the first motor is connected with the first roller column through a key. According to the cement decomposing furnace, the filter grate is used for filtering coal powder with larger particles, and then the roller column I and the roller column II are used for crushing the coal powder with larger particles, so that the coal powder can be fully combusted when the cement decomposing furnace is used, and further the waste of the coal powder is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of cement decomposition furnaces, and particularly relates to a filtering type cement decomposition furnace. Background Art

[0002] The cement decomposition furnace is an important device in cement production. The raw meal and pulverized coal fuel are fully dispersed, mixed and evenly distributed in the furnace, so that the pulverized coal fuel burns in the furnace and releases energy, and then the carbonate components in the raw meal are decomposed. When the cement decomposition furnace is used, pulverized coal is used as fuel. During the process of pulverized coal entering the furnace body, due to the existence of large particles in the pulverized coal, the large-particle pulverized coal cannot be fully burned after entering the furnace body, thus causing waste of pulverized coal. Therefore, it is urgent to design a filtering type cement decomposition furnace to solve the above problems. Content of the Utility Model

[0003] The purpose of the utility model is to provide a filtering type cement decomposition furnace to solve the above deficiencies in the prior art.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A filtering type cement decomposition furnace includes a furnace body. One outer wall of the furnace body is connected with a pulverized coal inlet pipe. The middle of the pulverized coal inlet pipe is connected with an installation shell. A partition plate is fixed inside the installation shell. A filter grate is fixed between the partition plate and one inner wall of the installation shell. On the side of the partition plate away from the filter grate, there are a roller 1 and a roller 2. Both the roller 1 and the roller 2 are connected with the installation shell through bearings. Crushing teeth are fixed on the outer walls of the roller 1 and the roller 2 and are distributed symmetrically about the center. One outer wall of the installation shell is fixed with a motor 1. The output shaft of the motor 1 is connected with the roller 1 through a key.

[0006] Further, the connecting shafts of the roller 1 and the roller 2 extend to the outside of the installation shell and are respectively fixed with a driving gear and a driven gear, and the driving gear meshes with the driven gear.

[0007] Further, a rotating shaft is connected with the inside of the installation shell through a bearing. Cleaning rods are fixed on the outer wall of the rotating shaft and are adapted to the filter grate.

[0008] Further, one end of the rotating shaft extends to the outside of the installation shell and is fixed with a driven pulley. One outer wall of the driving gear is fixed with a driving pulley. The driving pulley and the driven pulley are connected by a belt drive.

[0009] Further, one outer wall of the furnace body is connected with a raw meal inlet pipe. A guide plate is fixed inside the installation shell.

[0010] Further, a first baffle is fixed to the inner wall of one side of the installation shell, a second baffle is fixed to the outer wall of one side of the partition plate, a limiting plate is integrally formed at the top of the partition plate, and the filter grate is located on the tops of the first baffle and the second baffle.

[0011] Further, a nut is fixed to the outer wall of one side of the installation shell, a limiting bolt is connected to the inside of the nut through a thread, and one end of the limiting bolt extends into the installation shell.

[0012] In the above technical solution, the beneficial effects of the filtering type cement decomposing furnace provided by the present utility model are as follows: the filter grate is used to filter the pulverized coal with larger particles, and then the pulverized coal with larger particles is crushed by the first roller and the second roller, so that the cement decomposing furnace can fully burn the pulverized coal during use, thereby preventing waste of the pulverized coal; the cleaning rod is rotated by the rotating shaft, so that the end of the cleaning rod can pass through the gaps of the filter grate, thereby achieving the effect of cleaning the large particles of pulverized coal stuck on the filter grate, and enabling the filter grate to maintain a good filtering effect; the filter grate is supported by the first baffle and the second baffle, and the filter grate is further limited by the limiting bolt, so that it is more convenient to assemble and fix the filter grate inside the installation shell. Description of the Drawings

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present utility model, and those of ordinary skill in the art can also obtain other drawings based on these drawings.

[0014] Figure 1 It is a front view structural schematic diagram provided by an embodiment of a filtering type cement decomposing furnace of the present utility model.

[0015] Figure 2 It is a structural schematic diagram of the inside of the installation shell provided by an embodiment of a filtering type cement decomposing furnace of the present utility model.

[0016] Figure 3 It is a structural schematic diagram of the cleaning rod provided by an embodiment of a filtering type cement decomposing furnace of the present utility model.

[0017] Figure 4 It is a structural schematic diagram of the filter grate provided by an embodiment of a filtering type cement decomposing furnace of the present utility model.

[0018] Figure 5 It is an enlarged structural schematic diagram of the A position provided by an embodiment of a filtering type cement decomposing furnace of the present utility model.

[0019] Explanation of the reference numerals in the drawings:

[0020] 1 Furnace body, 2 Raw material inlet pipe, 3 Pulverized coal inlet pipe, 4 Installation shell, 5 Partition board, 6 Filter grate, 7 Deflector, 8 Roller 1, 9 Roller 2, 10 Crushing teeth, 11 Baffle 1, 12 Baffle 2, 13 Nut, 14 Limit bolt, 15 Driving gear, 16 Driven gear, 17 Motor, 18 Limit plate, 19 Rotating shaft, 20 Cleaning rod, 21 Driven pulley, 22 Driving pulley. Detailed implementation manners

[0021] In order to enable those skilled in the art to better understand the technical solution of the present utility model, the present utility model will be further introduced in detail below in conjunction with the accompanying drawings.

[0022] As Figures 1-5 shown, a filtering type cement decomposing furnace provided by an embodiment of the present utility model includes a furnace body 1. A pulverized coal inlet pipe 3 is connected to an outer wall of one side of the furnace body 1. A middle part of the pulverized coal inlet pipe 3 is connected with an installation shell 4. A partition board 5 is fixed inside the installation shell 4. A filter grate 6 is fixed between the partition board 5 and an inner wall of one side of the installation shell 4. On a side of the partition board 5 away from the filter grate 6, there are arranged a roller 1 8 and a roller 2 9. Both the roller 1 8 and the roller 2 9 are connected with the installation shell 4 through bearings. Crushing teeth 10 distributed symmetrically about the center are fixed on outer walls of the roller 1 8 and the roller 2 9. A motor 17 1 is fixed on an outer wall of one side of the installation shell 4. An output shaft of the motor 17 1 is connected with the roller 1 8 through a key.

[0023] Specifically, in this embodiment, it includes a furnace body 1. The furnace body 1 is the main part of a cement decomposing furnace in the prior art. A pulverized coal inlet pipe 3 is connected to an outer wall of one side of the furnace body 1. Pulverized coal enters the furnace body 1 from the pulverized coal inlet pipe 3 for combustion. A middle part of the pulverized coal inlet pipe 3 is connected with an installation shell 4. A partition board 5 is fixed inside the installation shell 4. A filter grate 6 is fixed between the partition board 5 and an inner wall of one side of the installation shell 4. The filter grate 6 filters large-particle pulverized coal. On a side of the partition board 5 away from the filter grate 6, there are arranged a roller 1 8 and a roller 2 9. Both the roller 1 8 and the roller 2 9 are connected with the installation shell 4 through bearings. Crushing teeth 10 distributed symmetrically about the center are fixed on outer walls of the roller 1 8 and the roller 2 9. The large-particle pulverized coal can be crushed by using the crushing teeth 10. A motor 17 1 is fixed on an outer wall of one side of the installation shell 4. An output shaft of the motor 17 1 is connected with the roller 1 8 through a key. The roller 1 8 is driven to rotate by using the motor 17 1.

[0024] A filtering type cement decomposing furnace provided by the present utility model filters large-particle pulverized coal by using the filter grate 6, and then crushes the large-particle pulverized coal by using the roller 1 8 and the roller 2 9, so that the cement decomposing furnace can fully burn the pulverized coal during use, thereby preventing waste of the pulverized coal.

[0025] In another embodiment provided by the present utility model, on the outer parts of the connecting shafts of the first roller 8 and the second roller 9 extending out of the mounting shell 4, a driving gear 15 and a driven gear 16 are respectively fixed. The driving gear 15 meshes with the driven gear 16. By using the meshing of the driving gear 15 and the driven gear 16, the first roller 8 and the second roller 9 can rotate towards each other, so that the efficiency of pulverizing large-particle pulverized coal is higher and it is not easy to be blocked.

[0026] In another embodiment provided by the present utility model, a rotating shaft 19 is connected to the inside of the mounting shell 4 through a bearing. Uniformly distributed cleaning rods 20 are fixed on the outer wall of the rotating shaft 19. The cleaning rods 20 are adapted to the filter grate 6. By driving the cleaning rods 20 to rotate through the rotating shaft 19, the ends of the cleaning rods 20 can pass through the gaps of the filter grate 6, thereby achieving the effect of cleaning the large-particle pulverized coal stuck on the filter grate 6 and enabling the filter grate 6 to maintain a good filtering effect; one end of the rotating shaft 19 extends to the outside of the mounting shell 4 and is fixed with a driven pulley 21. A driving pulley 22 is fixed on the outer wall of one side of the driving gear 15. The driving pulley 22 and the driven pulley 21 are connected by belt drive. By using the driving gear 15 to drive the driving pulley 22 and the driven pulley 21 to rotate, the rotating shaft 19 is further driven to rotate, without the need to additionally use a motor to drive the rotating shaft 19 to rotate, saving the use of the motor; a raw material inlet pipe 2 is connected to the outer wall of one side of the furnace body 1. The preheated cement raw material enters the furnace body 1 from the raw material inlet pipe 2 and is decomposed. The specific decomposition process of the cement raw material is the prior art. A guide plate 7 is fixed inside the mounting shell 4. The guide plate 7 can guide the pulverized coal to the middle of the filter grate 6.

[0027] In another embodiment provided by the present utility model, a first baffle 11 is fixed on one inner wall of the mounting shell 4, a second baffle 12 is fixed on the outer wall of one side of the partition plate 5, and a limiting plate 18 is integrally formed on the top of the partition plate 5. The filter grate 6 is located on the tops of the first baffle 11 and the second baffle 12. The first baffle 11, the second baffle 12 and the limiting plate 18 all play a role in limiting the filter grate 6; a nut 13 is fixed on the outer wall of one side of the mounting shell 4. A limiting bolt 14 is connected to the inside of the nut 13 through a thread. One end of the limiting bolt 14 extends into the mounting shell 4, so that the limiting bolt 14 can form a block on the filter grate 6, enabling the filter grate 6 to be fixed. And the moving space of the filter grate 6 after being fixed is small, so that the movement of the cleaning rod 20 will not interfere with the filter grate 6. The filter grate 6 is supported by the first baffle 11 and the second baffle 12, and the filter grate 6 is limited again by the limiting bolt 14. Because the nut of the limiting bolt 14 is outside the mounting shell 4, the limiting bolt 14 will not be restricted by space when rotated by a wrench, making it more convenient to assemble and fix the filter grate 6 inside the mounting shell 4.

[0028] Working principle: When in use, a negative pressure is provided at the top of the furnace body 1, and the roller 8 is driven to rotate by the motor 17. When the roller 8 rotates, it drives the driving gear 15 to rotate. The rotation of the driving gear 15 drives the driven gear 16 and the roller 9 to rotate. At the same time, the rotation of the driving gear 15 drives the driving pulley 22 to rotate. The rotation of the driving pulley 22 drives the driven pulley 21 and the rotating shaft 19 to rotate through the belt, so that the rotating shaft 19 drives the cleaning rod 20 to move, and one end of the cleaning rod 20 can pass through the gaps of the filter grate 6 during movement; when pulverized coal enters the interior of the installation shell 4 through the pulverized coal inlet pipe 3, the pulverized coal with smaller particles directly enters the furnace body 1 through the negative pressure passing through the filter grate 6, and the pulverized coal with larger particles is filtered by the filter grate 6 and falls by gravity between the roller 8 and the roller 9, so that the roller 8 and the roller 9 crush the pulverized coal with larger particles through the crushing teeth 10, and the pulverized coal after crushing will enter the interior of the furnace body 1 through the negative pressure and be burned.

[0029] Only some exemplary embodiments of the present invention are described above by way of illustration. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A filtering cement decomposition furnace, characterized in that: The invention comprises a furnace body (1), wherein the outer wall of one side of the furnace body (1) is connected to a coal powder inlet pipe (3), the middle part of the coal powder inlet pipe (3) is connected to a mounting shell (4), a partition (5) is fixed inside the mounting shell (4), a filter grate (6) is fixed between the partition (5) and the inner wall of one side of the mounting shell (4), a roller column 1 (8) and a roller column 2 (9) are provided on the side of the partition (5) away from the filter grate (6), the roller column 1 (8) and the roller column 2 (9) are both connected to the mounting shell (4) through bearings, the outer walls of the roller column 1 (8) and the roller column 2 (9) are fixed with crushing teeth (10) distributed in a central symmetrical manner, a motor (17) is fixed to the outer wall of one side of the mounting shell (4), and the output shaft of the motor (17) is connected to the roller column 1 (8) through a key.

2. A filtering cement decomposition furnace according to claim 1, characterized in that: The connecting shafts of the roller column 1 (8) and the roller column 2 (9) extend to the outside of the mounting shell (4) and are respectively fixed with a driving gear (15) and a driven gear (16), and the driving gear (15) is meshed with the driven gear (16).

3. A filtering cement decomposition furnace according to claim 2, characterized in that: The interior of the mounting shell (4) is connected to a rotating shaft (19) via a bearing. The outer wall of the rotating shaft (19) is fixed with evenly distributed cleaning rods (20), and the cleaning rods (20) are adapted to the filter grate (6).

4. A filtering cement decomposition furnace according to claim 3, characterized in that: One end of the rotating shaft (19) extends to the outside of the mounting shell (4) and is fixed with a driven pulley (21); a driving pulley (22) is fixed to the outer wall of one side of the driving gear (15); and the driving pulley (22) and the driven pulley (21) are connected via a belt transmission.

5. A filtering cement decomposition furnace according to claim 1, characterized in that: A raw material inlet pipe (2) is connected to an outer wall of one side of the furnace body (1), and a guide plate (7) is fixed inside the installation shell (4).

6. A filtering cement decomposition furnace according to claim 1, characterized in that: A baffle plate 1 (11) is fixed to an inner wall of one side of the mounting shell (4), a baffle plate 2 (12) is fixed to an outer wall of one side of the partition (5), a top of the partition (5) is integrally formed with a limit plate (18), the filter grate (6) is located on the top of the baffle plate 1 (11) and the baffle plate 2 (12), a nut (13) is fixed to an outer wall of one side of the mounting shell (4), the interior of the nut (13) is connected to a limit bolt (14) through a thread, and one end of the limit bolt (14) extends to the interior of the mounting shell (4).

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