Efficient cement kiln preheating device

Abstract

The utility model relates to the technical field of cement production, and discloses an efficient cement kiln preheating device. The efficient cement kiln preheating device comprises a preheating structure assembly, a conveying structure assembly is installed on the left side of the preheating structure assembly, a hot air pipe is installed at the upper end of the conveying structure assembly, a connecting pipe is installed on the left side of the hot air pipe, and a hot air pump is installed on the left side of the connecting pipe; the device comprises a conveying structure assembly, a uniform material scattering assembly is installed on the left side of the conveying structure assembly, a conveying frame is installed at the upper end of the uniform material scattering assembly, and a pouring groove is formed in the upper end of the conveying frame. In the prior art, subsequent materials are caked and fed unevenly, the heat exchange efficiency and the decomposition rate of the subsequent materials are affected, conveyed hot air is unstable when a cement kiln preheater is used, and the subsequent material waste heat effect is poor.

Description

Technical Field

[0001] This utility model relates to the field of cement production technology, specifically to a high-efficiency cement kiln preheating device. Background Technology

[0002] A cement kiln preheater is a device whose main function is to preheat the raw materials entering the cement kiln. The preheater utilizes flue gas from the boiler's tail flue to preheat the air entering the boiler to a certain temperature through internal heat exchange fins, thereby improving the boiler's heat exchange performance and reducing energy consumption.

[0003] The existing Chinese utility model patent with publication number CN106705682A discloses a cement kiln preheater, including a heat exchange tube, a cyclone cylinder connected to the heat exchange tube, and an anti-detachment rake. The anti-detachment rake has an anti-detachment end and a refractory fixing end. An insulating groove for receiving refractory is provided on the outer surface of the cyclone cylinder wall. A fixing through hole communicating with the inside of the cyclone cylinder is opened at the bottom of the insulating groove. The anti-detachment rake has an anti-detachment end and a refractory fixing end. The anti-detachment rake passes through the fixing through hole. The anti-detachment end of the anti-detachment rake is located in the insulating groove and is covered by the refractory. The refractory fixing end of the anti-detachment rake is located inside the cyclone cylinder so as to fix the refractory poured on the inner surface of the cyclone cylinder wall through the refractory fixing end of the anti-detachment rake.

[0004] Based on the search of the aforementioned patents and the findings of existing equipment, a cement kiln preheater is a device whose main function is to preheat the raw materials entering the cement kiln. When using a cement kiln preheater, materials are usually manually fed into the preheater, which leads to uneven feeding and agglomeration of subsequent materials, affecting the heat exchange efficiency and decomposition rate of the subsequent materials. Furthermore, the hot air delivered by the cement kiln preheater is unstable, resulting in poor waste heat treatment of the materials. All these problems affect the use of the device. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a high-efficiency cement kiln preheating device. It effectively prevents the uneven feeding of materials caused by manual feeding of materials into the cement kiln preheater, which affects the heat exchange efficiency and decomposition rate of subsequent materials. Furthermore, it prevents the unstable hot air delivered during the use of the cement kiln preheater, which results in poor waste heat treatment of the materials.

[0007] Technical solution

[0008] To achieve the above objectives, the present invention provides the following technical solution: a high-efficiency cement kiln preheating device, comprising a preheating structure component, wherein a conveying structure component is installed on the left side of the preheating structure component to facilitate hot air conveying and mixing of poured materials for subsequent preheating, and a uniform material spreading component is connected to the left side of the conveying structure component to facilitate uniform material conveying and subsequent material separation.

[0009] A hot air pipe is installed at the upper end of the conveying structure component. A connecting pipe is installed on the left side of the hot air pipe. A hot air pump is installed on the left side of the connecting pipe. The hot air pump is installed on the left side of the connecting pipe to facilitate the subsequent generation of hot air.

[0010] The uniform material spreading component is equipped with a conveying frame at its upper end, a pouring trough at its upper end, a motor at its right side, and a conveying screw inside the conveying frame to facilitate uniform material conveying.

[0011] As a preferred embodiment of this utility model, a cyclone is installed at the upper end of the preheating structure component, a pipe is installed at the upper end of the cyclone, a separation chamber is installed at the lower end of the cyclone, and a discharge pipe is installed at the lower end of the separation chamber. The discharge pipe is installed at the lower end of the separation chamber to facilitate the subsequent discharge of materials.

[0012] As a preferred embodiment of this utility model, a heat exchange tube is installed at the upper end of the conveying structure component, and a connecting pipe is installed on the left side of the upper end of the heat exchange tube. The connecting pipe is installed on the left side of the upper end of the heat exchange tube, which facilitates the subsequent connection of the uniform material spreading component.

[0013] As a preferred embodiment of this utility model, the upper end of the uniform material spreading component is equipped with a discharge pipe, and the discharge pipe is equipped with a spreading plate inside. The upper end of the discharge pipe is equipped with a discharge pipe, which is installed at the upper end of the discharge pipe to facilitate the subsequent discharge of materials inside the conveying frame.

[0014] As a preferred embodiment of this utility model, the conveying structure assembly is installed on the left side of the cyclone in the preheating structure assembly, and the uniform material spreading assembly is installed on the left side of the connecting pipe in the conveying structure assembly.

[0015] As a preferred embodiment of this utility model, the cyclone tube has a cylindrical structure and the separation chamber has a conical structure.

[0016] As a preferred embodiment of this utility model, the heat exchange tube is installed on the upper left side of the cyclone, the connecting pipe is connected to the discharge pipe, and the hot air pipe is connected to the connecting pipe in a T-shaped structure.

[0017] As a preferred embodiment of this utility model, the discharge pipe is a bent pipe structure, the upper end of the spreading plate is equipped with holes, the upper end of the pouring trough is a rectangular structure, and the motor is inserted and connected to the conveying screw.

[0018] Compared with the prior art, this utility model provides a high-efficiency cement kiln preheating device with the following features:

[0019] Beneficial effects:

[0020] 1. This utility model, through the design of the overall device, includes a hot air pipe installed in the conveying structure component. The hot air pipe transports preheated rectangular materials, facilitating subsequent rectangular heating. A connecting pipe is installed on the left side of the original hot air pipe, and a hot air pump is installed at the upper end of the connecting pipe. The hot air pump generates and transports hot air, allowing for the addition of hot air as needed and preventing uneven heating of subsequent materials. The uniform material distribution component includes a conveying frame with a conveying screw installed inside. The conveying screw is started by a motor, facilitating the uniform transport of materials. This design effectively prevents the uneven feeding and clumping of materials that often occurs when manually feeding materials into the cement kiln preheater, which affects the heat exchange efficiency and decomposition rate of subsequent materials. Furthermore, it avoids the problem of unstable hot air transported during cement kiln preheater use, leading to poor waste heat treatment of materials. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the preheating structure component of this utility model;

[0023] Figure 3 This is a schematic diagram of the structural conveying component of this utility model;

[0024] Figure 4 This is a schematic diagram of the uniform material spreading component of this utility model.

[0025] The components include: 1. Preheating structure assembly; 101. Cyclone; 102. Pipeline; 103. Separation chamber; 104. Feeding pipe; 2. Conveying structure assembly; 201. Heat exchange pipe; 202. Connecting pipe; 203. Hot air pipe; 204. Connecting pipe; 205. Hot air pump; 3. Uniform material spreading assembly; 301. Discharge pipe; 302. Spreading plate; 303. Discharge pipe; 304. Conveying frame; 305. Pouring trough; 306. Motor; 307. Conveying screw. Detailed Implementation

[0026] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0027] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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 of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] Please see Figure 1 - Figure 4 In this embodiment, a high-efficiency cement kiln preheating device includes: a preheating structure component 1, a conveying structure component 2 installed on the left side of the preheating structure component 1, a hot air pipe 203 installed at the upper end of the conveying structure component 2, a connecting pipe 204 installed on the left side of the hot air pipe 203, a hot air pump 205 installed on the left side of the connecting pipe 204, a uniform spreading component 3 installed on the left side of the conveying structure component 2, a conveying frame 304 installed at the upper end of the uniform spreading component 3, a pouring trough 305 installed at the upper end of the conveying frame 304, a motor 306 installed on the right side of the conveying frame 304, and a conveying screw 307 installed inside the conveying frame 304.

[0030] Through the above structure: the preheating structure component 1 facilitates the preheating and separation of materials for subsequent use; the conveying structure component 2 facilitates the hot air conveying and mixing of the poured materials for subsequent preheating; and the uniform spreading component 3 facilitates the uniform conveying of materials and facilitates subsequent separation of materials.

[0031] Please see Figure 1 - Figure 4The upper end of the preheating structure component 1 is equipped with a cyclone 101, the upper end of the cyclone 101 is equipped with a pipe 102, the lower end of the cyclone 101 is equipped with a separation chamber 103, and the lower end of the separation chamber 103 is equipped with a discharge pipe 104. The cyclone 101 is a cylindrical structure, and the separation chamber 103 is a conical structure.

[0032] With the above structure: the material is preheated and separated by installing the cyclone 101 for easy use later; the pipe 102 is installed at the upper end of the cyclone 101 to facilitate the discharge of air; the separation chamber 103 is installed at the lower end of the cyclone 101 to facilitate the separation of material later; and the discharge pipe 104 is installed at the lower end of the separation chamber 103 to facilitate the discharge of material later.

[0033] Please see Figure 1 - Figure 4 The upper end of the conveying structure component 2 is equipped with a heat exchange pipe 201, and a connecting pipe 202 is installed on the upper left side of the heat exchange pipe 201. The heat exchange pipe 201 is installed on the upper left side of the cyclone 101. The connecting pipe 202 is connected to the discharge pipe 301. The hot air pipe 203 is connected to the connecting pipe 204 in a T-shaped structure.

[0034] With the above structure: hot air carrying materials is transported into the cyclone 101 by installing heat exchange tube 201; connecting pipe 202 is installed on the upper left side of heat exchange tube 201 to facilitate the subsequent connection of uniform material spreading component 3; hot air pipe 203 is installed at the lower end of heat exchange tube 201 to facilitate the subsequent delivery of hot air; connecting pipe 204 is installed on the left side of hot air pipe 203 to facilitate the subsequent installation of upper hot air pump 205; and hot air pump 205 is installed on the left side of connecting pipe 204 to facilitate the subsequent generation of hot air.

[0035] Please see Figure 1 - Figure 4 The upper end of the uniform spreading component 3 is equipped with a discharge pipe 301, and the inside of the discharge pipe 301 is equipped with a spreading plate 302. The upper end of the discharge pipe 301 is equipped with a discharge pipe 303. The discharge pipe 301 is a bent pipe structure. The upper end of the spreading plate 302 is equipped with a hole. The upper end of the pouring trough 305 is a rectangular structure. The motor 306 is inserted and connected to the conveying screw 307.

[0036] With the above structure: material is discharged into the connecting pipe 202 through the installation of the discharge pipe 301; the spreading plate 302 is installed inside the discharge pipe 301 to facilitate the uniform spreading of material; the discharge pipe 303 is installed at the upper end of the discharge pipe 301 to facilitate the discharge of material from the conveying frame 304; the conveying frame 304 is installed at the upper end of the discharge pipe 303 to facilitate the storage of material; the pouring trough 305 is installed at the upper end of the conveying frame 304 to facilitate the pouring of material into the conveying frame 304; the motor 306 is installed on the right side of the conveying frame 304 to facilitate the rotation of the conveying screw 307; the conveying screw 307 is installed inside the conveying frame 304 to facilitate the uniform conveying of material.

[0037] In use, firstly, the material is poured into the conveying frame 304 through the pouring trough 305. A conveying screw 307 is installed inside the conveying frame 304. A motor 306 is installed on the right side of the conveying frame 304, and the motor 306 is connected to the conveying screw 307 to facilitate the uniform conveying of the material inside the conveying frame 304. A discharge pipe 303 is installed on the left side of the conveying frame 304 to discharge the material. The discharge pipe 303 is connected to a discharge pipe 301. A spreading plate 302 is installed inside the discharge pipe 301 to evenly separate the material, facilitating its subsequent conveying to the connecting pipe 202. A heat exchange pipe 201 is installed on the right side of the connecting pipe 202. A hot air duct 203 is installed at the lower end of 01. Waste heat is transported to heat exchange tube 201 through the hot air duct 203 to transport the material upward. In order to prevent the waste heat from being too weak, a connecting pipe 204 is connected to the left side of the hot air duct 203. A hot air pump 205 is installed on the left side of the connecting pipe 204. The hot air pump 205 is used to adjust the air force. The hot air carries the material through the heat exchange tube 201 and enters the cyclone 101. A separation chamber 103 is installed at the lower end of the cyclone 101. The separation chamber 103 has a conical structure, which facilitates the subsequent separation and preheating of the material by hot air. The separated and preheated material is discharged through the discharge pipe 104 at the lower end of the separation chamber 103. The hot air is discharged through the pipe 102 at the upper end of the cyclone 101.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high efficiency cement kiln preheater apparatus, characterized by, The application relates to a preheating structure assembly (1), which is provided with a conveying structure assembly (2) on the left side, a hot air pipe (203) is installed at the upper end of the conveying structure assembly (2), a connecting pipe (204) is installed at the left side of the hot air pipe (203), a hot air pump (205) is installed at the left side of the connecting pipe (204), a uniform material spreading assembly (3) is installed at the left side of the conveying structure assembly (2), a conveying frame (304) is installed at the upper end of the uniform material spreading assembly (3), a pouring groove (305) is installed at the upper end of the conveying frame (304), a motor (306) is installed at the right side of the conveying frame (304), and a conveying screw (307) is installed in the conveying frame (304).

2. A high efficiency cement kiln preheater according to claim 1, wherein, The upper end of the preheating structure assembly (1) is provided with a cyclone cylinder (101), the upper end of the cyclone cylinder (101) is provided with a pipeline (102), the lower end of the cyclone cylinder (101) is provided with a separation cavity (103), and the lower end of the separation cavity (103) is provided with a discharging pipe (104).

3. A high efficiency cement kiln preheater according to claim 1, wherein, The upper end of the conveying structure assembly (2) is provided with a heat exchange pipe (201), and the upper end left side of the heat exchange pipe (201) is provided with a connecting pipe (202).

4. A high efficiency cement kiln preheater according to claim 1, wherein, The upper end of the uniform material spreading assembly (3) is provided with a discharging pipe (301), the inside of the discharging pipe (301) is provided with a material spreading plate (302), and the upper end of the discharging pipe (301) is provided with a discharging pipe (303).

5. A high efficiency cement kiln preheater according to claim 1, wherein, The conveying structure assembly (2) is installed at the left side of the cyclone cylinder (101) in the preheating structure assembly (1), and the uniform material spreading assembly (3) is installed at the left side of the connecting pipe (202) in the conveying structure assembly (2).

6. A high efficiency cement kiln preheater according to claim 2, wherein, The cyclone cylinder (101) is in a cylindrical structure, and the separation cavity (103) is in a conical structure.

7. A high efficiency cement kiln preheater according to claim 3, wherein, The heat exchange pipe (201) is installed at the upper end left side of the cyclone cylinder (101), the connecting pipe (202) is connected with the discharging pipe (301), and the hot air pipe (203) is connected with the connecting pipe (204) to form a T-shaped structure.

8. A high efficiency cement kiln preheater according to claim 4, wherein, The discharging pipe (301) is in a bent pipe structure, the upper end of the material spreading plate (302) is provided with a hole, the upper end of the pouring groove (305) is in a rectangular structure, and the motor (306) is connected with the conveying screw (307).

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