Cement kiln preheater

Abstract

The utility model relates to the technical field of cement kiln pre-heaters, in particular to a cement kiln pre-heater which comprises a material scattering box body of the pre-heater, a feeding port, a discharging port and a material scattering plate, the discharging port is used for feeding hot air, the material scattering plate is used for scattering materials, one side of the material scattering box body is provided with the feeding port, and the other side of the material scattering box body is communicated with the discharging port. The inner wall of the bottom of the material scattering box body is fixedly connected with a material scattering plate which is arranged in a cambered surface plate mode, the inner wall of the top of the material scattering box body is fixedly connected with a fixing piece, the bottom of the fixing piece is fixedly connected with a fixing plate which is arranged in an inclined mode, the outer side of the material scattering box body is fixedly connected with a protection frame, and a vibration motor is arranged in the protection frame; according to the material scattering device, the inclined fixing plate and the shaking scattering device are arranged in the material scattering box body, so that the impact force to the material scattering plate when materials fall is reduced, and meanwhile, bulk materials can be scattered.

Description

Technical Field

[0001] The utility model relates to the technical field of cement kiln preheaters, in particular to a cement kiln preheater. Background Art

[0002] The working principle of cement kiln preheater is to use the heat enthalpy of the hot air flow discharged from the rotary kiln and the decomposition furnace to heat the raw material, so that the raw material and the hot air flow can exchange heat, preheat the raw material and partially decompose the carbonate, and then the preheated raw material enters the decomposition furnace or rotary kiln to continue heating and decomposition, and calcine into clinker. When the material enters the decomposition furnace or cyclone from the preheater, it is necessary to use a spreading plate to disperse the material. The spreading plate is an important component of the cement kiln preheater.

[0003] Patent publication number CN217560372U discloses a cement kiln preheater spreading box device, including a box body, a connecting flange, a material flow guide structure and a spreading plate, wherein the box body includes a feed inlet, a discharge port and a side wall... There is an obtuse angle between the spreading plate and the material flow guide structure.

[0004] However, when the above device is in use, since the spreading plate is in contact with the raw material for a long time and is frequently subjected to the impact force when the raw material is discharged, cracks and oxidation are very likely to occur on the surface, resulting in uneven spreading of the raw material by the spreading plate. Therefore, a cement kiln preheater is proposed to address the above problems. Utility Model Content

[0005] The utility model aims to provide a cement kiln preheater to solve the problem that cracks and oxidation phenomena are likely to occur on the surface of a spreading plate due to frequent impacts.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A cement kiln preheater comprises a material spreading box of the preheater, a material feed port, a material outlet for entering a hot gas flow and a material spreading plate for lifting materials, wherein the material spreading box is provided with a material feed port on one side, the material spreading box is connected with a material outlet on the other side, a ash cleaning hole is provided below the material feed port, a material spreading plate arranged in the form of an arc panel is fixedly connected to the inner wall at the bottom of the material spreading box, a fixing piece is fixedly connected to the inner wall at the top of the material spreading box, a fixing plate arranged in an inclined manner is fixedly connected to the bottom of the fixing piece, a protective frame is fixedly connected to the outer side of the material spreading box, a vibration motor is arranged in the protective frame, a fixing rod is fixedly connected to the output shaft of the vibration motor, a shaking rod with a hollow middle is sleeved on the outer side of the fixing rod, and a spring is arranged in the shaking rod.

[0008] Preferably, a reinforcing plate for increasing the overall strength is provided inside the fixing plate, and a wear-resistant layer is fixedly connected to the surface of the fixing plate.

[0009] Preferably, an elastically arranged sealing member is tightly fitted on the outer side of the fixing rod, and the sealing member is fixedly connected to the inner wall of the material spreading box.

[0010] Preferably, the spring is arranged between the inner wall of the rocking rod and the fixed rod, and a plurality of sharply arranged saw teeth are fixedly connected to the outer side of the rocking rod.

[0011] Preferably, one end of the fixing rod passes through the inner wall of the material spreading box, and the shaking rod is arranged between the fixing plate and the material spreading box.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] In the utility model, by arranging a spreading box body, a feeding port, a discharging port, a spreading plate, a cleaning hole, a fixing part and a fixing plate, after the material comes in from the feeding port, part of the material impacts the fixing plate, and by arranging a wear-resistant layer on the surface of the fixing plate, the wear-resistant effect at the fixing plate is increased, and at the same time, the impact force of the material impacting the surface of the spreading plate is reduced, so that part of the lumped material is broken up by the impact force, and by arranging a reinforcing plate in the fixing plate, the overall strength of the fixing plate is increased, and by arranging a fixing rod, a shaking rod, a spring, a vibration motor and a protective frame, when part of the material falls from the feeding port, the vibration motor drives the fixing rod to vibrate, and at the same time, the shaking rod is in a shaking state under the action of the spring, and the serrations on the surface of the shaking rod can further break up the lumped material in the process of the material falling, further reducing the impact force of the material on the spreading plate, and by arranging an inclined fixing plate and a shaking breaking device in the spreading box body, the impact force of the material on the spreading plate when falling is reduced, and at the same time, the lumped material can be broken up. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the shaking rod of the utility model;

[0016] Figure 3 It is a side structural schematic diagram of the fixing plate of the utility model.

[0017] In the figure: 1. material spreading box; 2. material feed port; 3. material discharge port; 4. material spreading plate; 5. ash cleaning hole; 6. fixing part; 7. fixing plate; 8. wear-resistant layer; 9. reinforcing plate; 10. fixing rod; 11. shaking rod; 12. spring; 13. sawtooth; 14. vibration motor; 15. sealing part; 16. protective frame. DETAILED DESCRIPTION

[0018] 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.

[0019] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0020] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0021] See also Figure 1-3 , the utility model provides a technical solution:

[0022] A cement kiln preheater comprises a material spreading box 1 of the preheater, a material feed port 2, a material discharge port 3 for entering a hot gas flow and a material spreading plate 4 for lifting materials. The material spreading box 1 is provided with a material feed port 2 on one side, and the material spreading box 1 is connected with the material discharge port 3 on the other side. A ash cleaning hole 5 is provided below the material feed port 2. The material spreading plate 4 arranged in the form of an arc panel is fixedly connected to the inner wall at the bottom of the material spreading box 1, a fixing piece 6 is fixedly connected to the inner wall at the top of the material spreading box 1, and a fixing plate 7 arranged in an inclined manner is fixedly connected to the bottom of the fixing piece 6. A protective frame 16 is fixedly connected to the outer side of the material spreading box 1, a vibration motor 14 is arranged in the protective frame 16, and a fixing rod 10 is fixedly connected to the output shaft of the vibration motor 14. A shaking rod 11 arranged in the middle with a hollow structure is sleeved on the outer side of the fixing rod 10, and a spring 12 is arranged in the shaking rod 11. By means of the inclined fixing plate 7 and the shaking shattering device arranged in the material spreading box 1, the impact force of the material on the material spreading plate 4 when falling is reduced, and the agglomerated material can be broken up at the same time.

[0023] A reinforcing plate 9 for increasing the overall strength is provided inside the fixed plate 7, and a wear-resistant layer 8 is fixedly connected to the surface of the fixed plate 7 to increase the strength of the fixed plate 7 and make the surface of the fixed plate 7 wear-resistant; an elastically arranged seal 15 is tightly fitted to the outside of the fixed rod 10, and the seal 15 is fixedly connected to the inner wall of the material spreading box 1, so that when the fixed rod 10 is shaken, the material is not easy to leak out from the material spreading box 1; the spring 12 is arranged between the inner wall of the shaking rod 11 and the fixed rod 10, and a number of sharply arranged saw teeth 13 are fixedly connected to the outside of the shaking rod 11, which increases the shaking range of the shaking rod 11 and has a breaking up effect when shaking; one end of the fixed rod 10 passes through the inner wall of the material spreading box 1, and the shaking rod 11 is arranged between the fixed plate 7 and the material spreading box 1, so that it has the effect of breaking up and reducing the impact force of the material during the falling process.

[0024] Working process: During the operation of the equipment, the external power supply is energized. When the cement kiln preheater is in use, first place the cement kiln preheater in a suitable position. When the material enters from the feed port 2 of the preheater scattering box 1, the specific usage method refers to the cement kiln preheater scattering box device disclosed in patent number CN217560372U. The material enters from the feed port 2 and falls under the action of gravity. Part of the material first impacts the wear-resistant layer 8 on the surface of the fixed plate 7. The wear-resistant layer 8 increases the wear-resistant effect of the fixed plate 7. The reinforcing plate 9 arranged in the fixed plate 7 makes it more stable as a whole. At this time, if there is agglomerated material, after the impact The materials will be broken up. As the fixed plate 7 is tilted, the materials will continue to fall under the action of gravity. The vibration motor 14 is started to drive the fixed rod 10 to be in a vibrating state. The fixed rod 10 drives the shaking rod 11 to be in a shaking state at the same time. Under the action of the elastic force of the spring 12, the shaking range of the shaking rod 11 is increased, and the falling materials are further broken up. The materials continue to fall until they impact the arc-shaped scattering plate 4. By means of the tilted fixed plate 7 and the shaking scattering device arranged in the scattering box 1, the impact force of the materials on the scattering plate 4 when falling is reduced, and the agglomerated materials can be broken up at the same time.

[0025] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. The standard parts used in this utility model can be purchased from the market, and the special-shaped parts can be customized according to the description and the drawings. The specific connection methods of each part adopt the conventional means such as bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0026] Although the 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 cement kiln preheater, comprising a material spreading box (1) of the preheater, a material inlet (2), a material outlet (3) for entering a hot air flow, and a material spreading plate (4) for lifting the material, characterized in that: A feeding port (2) is provided on one side of the material spreading box (1), a feeding port (3) is connected to the other side of the material spreading box (1), a cleaning hole (5) is provided below the feeding port (2), a material spreading plate (4) arranged in the form of an arc plate is fixedly connected to the inner wall at the bottom of the material spreading box (1), a fixing piece (6) is fixedly connected to the inner wall at the top of the material spreading box (1), a fixing plate (7) arranged in an inclined manner is fixedly connected to the bottom of the fixing piece (6), a protective frame (16) is fixedly connected to the outside of the material spreading box (1), a vibration motor (14) is arranged inside the protective frame (16), an output shaft of the vibration motor (14) is fixedly connected to a fixing rod (10), a shaking rod (11) arranged in the middle with a hollow shape is sleeved on the outside of the fixing rod (10), and a spring (12) is arranged inside the shaking rod (11).

2. A cement kiln preheater according to claim 1, characterized in that: A reinforcing plate (9) for increasing the overall strength is provided inside the fixing plate (7), and a wear-resistant layer (8) is fixedly connected to the surface of the fixing plate (7).

3. A cement kiln preheater according to claim 1, characterized in that: An elastically arranged sealing member (15) is tightly fitted to the outside of the fixing rod (10), and the sealing member (15) is fixedly connected to the inner wall of the material spreading box (1).

4. A cement kiln preheater according to claim 1, characterized in that: The spring (12) is arranged between the inner wall of the rocking rod (11) and the fixed rod (10), and a plurality of sharp saw teeth (13) are fixedly connected to the outer side of the rocking rod (11).

5. A cement kiln preheater according to claim 1, characterized in that: One end of the fixing rod (10) passes through the inner wall of the material spreading box (1), and the shaking rod (11) is arranged between the fixing plate (7) and the material spreading box (1).

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