Raw material scattering device

Abstract

The utility model provides a raw material scattering device, and relates to the technical field of cement production, the raw material scattering device comprises an air pipe, the side wall of the air pipe is communicated with a scattering box body, the top of the scattering box body is communicated with a blanking pipe, the scattering box body is internally provided with a dispersing assembly and a scattering assembly, the dispersing assembly is located above the scattering assembly, and the scattering assembly is located above the blanking pipe. The scattering assembly is arranged between the blanking pipe and the air pipe, the scattering assembly is rotationally arranged in the scattering box body, the scattering assembly is fixedly arranged in the scattering box body, the scattering box body is arranged between the blanking pipe and the air pipe, and the scattering assembly and the scattering assembly are arranged in the scattering box body; due to the arrangement of the dispersing assembly, falling materials can be effectively dispersed and screened, small materials firstly fall into the material scattering assembly and are discharged into a pipe for heat exchange, and large materials continue to be further dispersed and refined on the dispersing assembly; and finally, the raw materials fall into the material scattering assembly to be collided for the last time and then are discharged into the air pipe to be subjected to heat exchange, so that the raw materials can be effectively dispersed and refined, caking is prevented, and the heat exchange effect of the raw materials is guaranteed.

Description

Technical Field

[0001] This application relates to the field of cement production technology, and more specifically, to a raw material spreading device. Background Technology

[0002] In the precalcination system of a new dry-process cement production line, raw meal heat exchange and decomposition mainly occur in a suspended state in the preheater and decomposition furnace, respectively. The more uniformly the raw meal is dispersed when it enters the heat exchange tubes of the preheater and the decomposition furnace, the larger the contact area with the rising hot flue gas, and the higher the heat exchange efficiency and decomposition efficiency. Raw meal dispersion is achieved through a spreading device, so a well-designed spreading device structure is crucial for the heat exchange and decomposition of raw meal in the precalcination system.

[0003] Sprinkling raw cement into the duct can result in uneven distribution of the cement, and some of the cement may clump together to form lumps that are not easily dispersed by hot air, leading to insufficient preheating. In some cases, the lumps may even be too large to be blown away by the hot air. Summary of the Invention

[0004] The purpose of this application is to provide a raw material spreading device that can solve the technical problem of uniform spreading of raw materials and high heat exchange efficiency.

[0005] This application provides a raw material spreading device, including an air duct, a spreading box being connected to the side wall of the air duct, and a material drop pipe being connected to the top of the spreading box.

[0006] The material spreading box is equipped with a dispersing component and a spreading component. The dispersing component is located above the spreading component and is rotatably disposed within the material spreading box. The spreading component is fixedly disposed within the material spreading box.

[0007] Furthermore, the dispersing component includes a flipping plate, a cam, and a first motor. One end of the flipping plate is rotatably disposed inside the spreading box, and the flipping plate is located below the discharge end of the discharge pipe. The cam is rotatably disposed inside the spreading box, and the cam abuts against the bottom of the flipping plate. The first motor is fixedly disposed on the outer wall of the spreading box, and the output end of the first motor is connected to the cam.

[0008] Furthermore, the flip plate is provided with multiple screening holes.

[0009] Furthermore, the material spreading assembly includes a material spreading plate, multiple partition strips, and vent holes. The material spreading plate is obliquely fixed on the inner wall of the material spreading box. The multiple partition strips are equidistantly arranged on the material spreading plate. The vent holes are equidistantly opened at the discharge end of the material spreading plate, and the discharge end of the material spreading plate extends into the air duct.

[0010] Furthermore, an air inlet is provided at the connection between the material spreading plate and the material spreading box, and an air blowing pipe is connected to the air inlet, with the other end of the air blowing pipe connected to the air duct.

[0011] Furthermore, an air pump is provided at the air inlet end of the air blowing pipe.

[0012] Furthermore, the material spreading box is also equipped with a dispersing roller shaft, which is located at the discharge end of the material discharge pipe and above the dispersing component. One end of the dispersing roller shaft is connected to a second motor, which is fixedly installed on the outer wall of the material spreading box.

[0013] Furthermore, a vibration motor is also fixedly installed on the outer wall of the material spreading box.

[0014] The beneficial effects of this utility model are:

[0015] By installing a material spreading box between the material discharge pipe and the air duct, and the material spreading box containing a dispersing component and a spreading component, the dispersing component can effectively disperse and screen the falling material. Smaller materials fall into the spreading component first and are discharged into the pipe for heat exchange, while larger materials continue to be further dispersed and refined on the dispersing component. Finally, after falling into the spreading component for a final collision, they are discharged into the air duct for heat exchange. This effectively disperses and refines the raw materials, prevents agglomeration, and ensures the heat exchange effect of the raw materials. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0018] Figure 2 This is a cross-sectional structural diagram of an embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the structure of the material spreading box in one embodiment of the present invention.

[0020] The reference numerals in the attached figures are as follows:

[0021] 1. Air duct; 2. Spreading box; 21. Dispersing component; 211. Flipping plate; 212. Cam; 213. First motor; 214. Screening hole; 22. Spreading component; 221. Spreading plate; 222. Separator bar; 223. Exhaust hole; 23. Air blowing port; 24. Air blowing pipe; 25. Air pump; 26. Dispersing roller; 27. Second motor; 28. Vibrating motor; 3. Drop pipe. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0025] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0027] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0028] This application discloses a raw material spreading device.

[0029] Reference Figure 1-3 A raw material spreading device includes an air duct 1, a spreading box 2 connected to the side wall of the air duct 1, and a material drop pipe 3 connected to the top of the spreading box 2.

[0030] The material spreading box 2 is equipped with a dispersing component 21 and a spreading component 22. The dispersing component 21 is located above the spreading component 22 and is rotatably mounted inside the material spreading box 2. The spreading component 22 is fixedly mounted inside the material spreading box 2. In use, raw material falls from the drop pipe 3 into the material spreading box 2 and passes through the dispersing component 21 and the spreading component 22 in sequence for dispersing and breaking up any clumps of raw material. The raw material is then discharged into the air duct 1 through the spreading component 22 for heat exchange. The material spreading is achieved by setting up a heat exchanger between the drop pipe 3 and the air duct 1. There is a feeding box 2, and the feeding box 2 is equipped with a dispersing component 21 and a feeding component 22. The dispersing component 21 can effectively disperse and screen the falling material, so that the smaller material falls into the feeding component 22 first and is discharged into the pipe for heat exchange, while the larger material continues to be further dispersed and refined on the dispersing component 21. Finally, after falling into the feeding component 22 for a final collision, it is discharged into the air duct 1 for heat exchange. This can effectively disperse and refine the raw materials, prevent agglomeration, and ensure the heat exchange effect of the raw materials.

[0031] Reference Figure 1-3 The dispersing component 21 includes a flipping plate 211, a cam 212, and a first motor 213. One end of the flipping plate 211 is rotatably disposed inside the spreading box 2, and the flipping plate 211 is located below the discharge end of the discharge pipe 3. The cam 212 is rotatably disposed inside the spreading box 2, and the cam 212 abuts against the bottom of the flipping plate 211. The first motor 213 is fixedly disposed on the outer wall of the spreading box 2, and the output end of the first motor 213 is connected to the cam 212.

[0032] Reference Figure 2-3 More specifically, the flip plate 211 is provided with multiple screening holes 214;

[0033] In use, the first motor 213 drives the cam 212 to rotate. The rotation of the cam 212 effectively drives the flipping plate 211 to swing up and down, which can effectively flip the raw material falling on the flipping plate 211. The raw material is continuously flipped, and the raw material of the appropriate size is discharged from the screening hole 214 first, and then discharged into the air duct 1 for heat exchange through the spreading component 22. The larger lumps of raw material continue to be flipped on the flipping plate 211, and are continuously dispersed and refined, which effectively disperses and refines the raw material. At the same time, the lumps of raw material that have not been dispersed after being flipped on the flipping plate 211 multiple times will fall from the edge of the flipping plate 211 onto the dispersing component 21 for final dispersion, and then be directly discharged into the air duct 1 for heat exchange. The setting of the dispersing component 21 can effectively disperse the lumps of raw material.

[0034] Reference Figure 2-3 The material spreading assembly 22 includes a material spreading plate 221, multiple partition bars 222 and an exhaust port 223. The material spreading plate 221 is inclined and fixed on the inner wall of the material spreading box 2. The multiple partition bars 222 are equidistantly arranged on the material spreading plate 221. The exhaust ports 223 are equidistantly opened at the discharge end of the material spreading plate 221, and the discharge end of the material spreading plate 221 extends into the air duct 1.

[0035] In use, the raw material undergoes preliminary dispersion treatment after passing through the dispersion component 21 and then falls onto the spreading plate 221. It is then separated by multiple dividing strips 222 and slides down to the discharge end of the spreading plate 221 under the action of gravity. The smaller raw material exchanges heat with the gas in the air duct 1 through the exhaust hole 223 at the discharge end of the spreading plate 221 and is carried away by the air duct 1. The larger raw material falls from the discharge end of the spreading plate 221, exchanges heat with the air in the air duct 1, and is carried away.

[0036] Reference Figure 3 An air inlet 23 is provided at the connection between the material spreading plate 221 and the material spreading box 2. An air blowing pipe 24 is connected to the air inlet 23, and the other end of the air blowing pipe 24 is connected to the air duct 1.

[0037] Reference Figure 1-3 More specifically, an air pump 25 is provided at the air inlet end of the air blowing pipe 24;

[0038] In use, the air blowing pipe 24 carries the air from the air pipe 1 to the air blowing port 23 through one end connected to the air pipe 1, and blows the air onto the surface of the spreading plate 221. This can effectively speed up the discharge of raw material on the spreading plate 221. At the same time, the air pump 25 can enhance the wind speed at the air blowing port 23, preventing large amounts of raw material from accumulating on the surface of the spreading plate 221 for a long time and causing blockage.

[0039] Reference Figure 2-3The material spreading box 2 is also equipped with a dispersing roller 26. The dispersing roller 26 is located at the discharge end of the material discharge pipe 3 and is located above the dispersing component 21. One end of the dispersing roller 26 is connected to a second motor 27, which is fixedly installed on the outer wall of the material spreading box 2.

[0040] In use, the second motor 27 drives the dispersing roller 26 to rotate, which can perform preliminary dispersing treatment on the raw material that has just fallen from the discharge pipe 3, so that the dispersing efficiency of the subsequent dispersing component 21 is better and the workload of the dispersing component 21 is reduced.

[0041] Reference Figure 1-2 The outer wall of the spreading box 2 is also fixedly equipped with a vibration motor 28. The vibration motor 28 can effectively reduce the phenomenon of raw material retention on the inner wall of the spreading box 2 and the surface of the spreading plate 221, and prevent raw material from accumulating due to prolonged retention time.

[0042] In this embodiment, both the first motor 213 and the second motor 27 are conventional servo motors, while the air pump 25 is a vane pump.

[0043] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A raw material spreading device, comprising an air duct, characterized in that: The side wall of the air duct is connected to a material spreading box, and the top of the material spreading box is connected to a material drop pipe. The material spreading box is equipped with a dispersing component and a spreading component. The dispersing component is located above the spreading component and is rotatably mounted inside the material spreading box. The spreading component is fixedly mounted inside the material spreading box. The dispersing component includes a flipping plate, a cam, and a first motor. One end of the flipping plate is rotatably mounted inside the material spreading box and is located below the discharge end of the material discharge pipe. The cam is rotatably mounted inside the material spreading box and abuts against the bottom of the flipping plate. The first motor is fixedly mounted on the outer wall of the material spreading box, and the output end of the first motor is connected to the cam. The spreading component includes a spreading plate, multiple partition bars, and an exhaust port. The spreading plate is obliquely fixed on the inner wall of the material spreading box. The multiple partition bars are equidistantly mounted on the spreading plate. The exhaust ports are equidistantly opened at the discharge end of the spreading plate, and the discharge end of the spreading plate extends into the air duct.

2. The raw material spreading device according to claim 1, characterized in that, The flip plate is provided with multiple screening holes.

3. The raw material spreading device according to claim 1, characterized in that, An air inlet is provided at the connection between the material spreading plate and the material spreading box. An air blowing pipe is connected to the air inlet, and the other end of the air blowing pipe is connected to the air duct.

4. The raw material spreading device according to claim 3, characterized in that, An air pump is installed at the air inlet end of the air blowing pipe.

5. A raw material spreading device according to claim 1, characterized in that, The material spreading box is also equipped with a dispersing roller shaft, which is located at the discharge end of the material discharge pipe and above the dispersing component. One end of the dispersing roller shaft is connected to a second motor, which is fixedly installed on the outer wall of the material spreading box.

6. The raw material spreading device according to claim 1, characterized in that, A vibration motor is also fixedly installed on the outer wall of the material spreading box.

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