Kiln tail turbine feeding structure of carbonization rotary kiln

Abstract

The utility model belongs to the technical field of rotary kilns, and provides a kiln tail turbine feeding structure of a carbonization rotary kiln, which is suitable for continuous feeding of a tube nest sintering rotary kiln. According to the technical scheme, a plurality of tube nests are evenly arranged in the kiln tail tube in the circumferential direction and fixedly connected with the inner wall of the kiln tail tube through a sealing fixing plate, a material blocking ring plate is fixedly installed at the end of the kiln tail tube and is of an annular plate structure, and the outer edge of the material blocking ring plate is fixedly connected with the inner wall of the end of the kiln tail tube. The material blocking ring plate is fixedly connected with the sealing fixing plate through a conical cylinder, the large-diameter end of the conical cylinder is fixedly connected with the outer edge of the material blocking ring plate, the small-diameter end of the conical cylinder is fixedly connected with the sealing fixing plate, all tube nest inlets are located in the small-diameter end of the conical cylinder, and a plurality of material guiding inclined plates are evenly and fixedly arranged on the inner wall of the conical cylinder. A tube inlet of each tube nest corresponds to the inner end of one material guide inclined plate, the outer ends of the material guide inclined plates are obliquely arranged in the rotating direction of the kiln tail tube and fixed to the inner wall of the material blocking ring plate, and a tube outlet of the feeding tube extends into the conical barrel.

Description

Technical Field

[0001] This utility model relates to the turbine feed structure at the tail of a carbonization rotary kiln, belonging to the technical field of rotary kilns, specifically to the turbine feed structure at the tail of a carbonization rotary kiln. Background Technology

[0002] A rotary kiln for carbonization is a production kiln structure that requires a transmission device to continuously rotate the kiln body, isolating it from the external environment. During this process, hot gas needs to be continuously supplied into the kiln to sinter the material within the tubes. In rotary kilns, the commonly used feeding method is tail-end feeding. During feeding, the uniformity of material distribution within the tubes must be considered to ensure even heating and avoid affecting sintering quality. However, in batch production, material can be added to each tube in a single batch. For continuous production, continuous feeding is required, making traditional feeding methods unsuitable, and simply controlling the feeding speed cannot guarantee the uniformity of material distribution within each tube. Utility Model Content

[0003] To address one of the aforementioned technical deficiencies, this utility model provides a turbine feed structure for the tail of a carbonization rotary kiln, suitable for continuous feeding of tubular sintering rotary kilns.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a rotary kiln tail turbine feed structure, including a kiln tail pipe, tubes, a sealing and fixing plate, an air outlet pipe, a baffle ring plate, a cone, a guide plate, and a feed pipe. Multiple tubes are evenly arranged circumferentially inside the kiln tail pipe. The ends of the tubes located inside the kiln tail pipe are fixedly connected to the inner wall of the kiln tail pipe through the sealing and fixing plate. The air outlet pipe is fixed at the center of the sealing and fixing plate and extends into the kiln body. A baffle ring plate is fixedly installed at the end of the kiln tail pipe. The baffle ring plate has a circular ring structure, and its outer edge is fixed to the inner wall of the end of the kiln tail pipe. The baffle ring plate and the sealing fixing plate are fixedly connected by a cone. The large-diameter end of the cone is fixedly connected to the outer edge of the baffle ring plate, and the small-diameter end of the cone is fixedly connected to the sealing fixing plate. All tube inlets are located inside the small-diameter end of the cone. Multiple guide plates are uniformly fixed on the inner wall of the cone. One long side of the guide plate is fixed to the inner wall of the cone. Each tube inlet corresponds to the inner end of a guide plate. The outer end of the guide plate is inclined towards the rotation direction of the kiln tail tube and fixed to the inner wall of the baffle ring plate. The outlet of the feed pipe extends into the inside of the cone.

[0005] The outer wall of the tube port of the tube is close to the inner wall of the small-diameter port of the cone.

[0006] The angle between the guide plate and the cone in the direction of rotation of the kiln tail pipe is acute.

[0007] The inner end of the guide plate extends into the corresponding tube column near the center of the kiln tail tube.

[0008] The carbonization rotary kiln tail turbine feeding structure provided by this utility model can further distribute the uniformly supplied material into each tube, ensuring that the amount of material entering each tube is uniform under continuous feeding, thus guaranteeing the production quality of the rotary kiln. Attached Figure Description

[0009] The present invention will now be described in further detail with reference to the accompanying drawings;

[0010] Figure 1 This is a schematic diagram of the structure of this utility model;

[0011] Figure 2 for Figure 1 A schematic diagram of the structure on the left after removing the baffle ring and the feed pipe. Detailed Implementation

[0012] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0013] like Figure 1-2As shown, the present invention relates to a rotary kiln tail turbine feed structure for carbonization, comprising a kiln tail pipe 1, tubes 2, a sealing and fixing plate 3, an exhaust pipe 4, a baffle ring 5, a cone 6, a guide plate 7, and a feed pipe 8. Multiple tubes 2 are evenly arranged circumferentially inside the kiln tail pipe 1. The ends of the tubes 2 located inside the kiln tail pipe 1 are fixedly connected to the inner wall of the kiln tail pipe 1 via the sealing and fixing plate 3. The exhaust pipe 4 is fixed at the center of the sealing and fixing plate 3 and extends into the kiln body. The hot gas inside the kiln exchanges heat with the material inside the tubes 2, sintering the material. The hot gas is then discharged through the exhaust pipe 4. A baffle ring 5 is fixedly installed at the end of the kiln tail pipe 1. The baffle ring 5 is a circular ring structure with its outer edge aligned with the material inside the kiln tail pipe 1. The inner wall of the end of the kiln tail pipe 1 is fixedly connected. The baffle ring plate 5 and the sealing fixing plate 3 are fixedly connected through the cone 6. The large diameter end of the cone 6 is fixedly connected to the outer edge of the baffle ring plate 5, and the small diameter end of the cone 6 is fixedly connected to the sealing fixing plate 3. All the inlets of the tubes 2 are located inside the small diameter end of the cone 6. Multiple guide plates 7 are evenly fixed on the inner wall of the cone 6. One long side of the guide plate 7 is fixed to the inner wall of the cone 6. Each tube inlet of the tubes 2 corresponds to the inner end of a guide plate 7. The outer end of the guide plate 7 is inclined towards the rotation direction of the kiln tail pipe 1 and fixed on the inner wall of the baffle ring plate 5. The outlet of the feed pipe 8 extends into the inside of the cone 6.

[0014] The working process of this utility model is as follows: Material is fed into the cone 6 at a uniform speed through the feed pipe 8. Simultaneously, due to the uniform rotation of the rotary kiln, multiple guide plates 7 evenly distribute the material; that is, the multiple guide plates 7 divide the inner wall of the cone into multiple uniform grids, each grid containing a fixed amount of material, such as... Figure 2 As shown, when the cell containing the material moves from position A to position B, the material will flow completely into the tube 2 along the guide plate 7, thereby achieving uniform material feeding in each tube.

[0015] The outer wall of the tube port of the tube 2 is close to the inner wall of the small-diameter port of the cone 6, so that the material can be completely fed into the tube 2.

[0016] The angle between the guide plate 7 and the cone 6 toward the rotation direction of the kiln tail pipe 1 is an acute angle. The inner end of the guide plate 7, near the center of the kiln tail pipe 1, extends into the corresponding tube 2, which is conducive to the correct introduction of materials.

[0017] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A carbonization rotary kiln kiln tail turbine feed structure characterized by: The kiln tail pipe (1) is internally and circumferentially provided with a plurality of column pipes (2), the end of the column pipe (2) in the kiln tail pipe (1) is fixedly connected with the inner wall of the kiln tail pipe (1) through the sealing fixed plate (3), the gas outlet pipe (4) is fixed at the center of the sealing fixed plate (3) and penetrates into the inside of the kiln body, the end of the kiln tail pipe (1) is fixedly installed with the material blocking ring plate (5), the material blocking ring plate (5) is a circular ring plate structure and its outer edge is fixedly connected with the end inner wall of the kiln tail pipe (1), the material blocking ring plate (5) is fixedly connected with the sealing fixed plate (3) through the conical cylinder (6), the large-diameter end of the conical cylinder (6) is fixedly connected with the outer edge of the material blocking ring plate (5), the small-diameter end of the conical cylinder (6) is fixedly connected with the sealing fixed plate (3), and the inlet of all column pipes (2) is located in the inside of the small-diameter end of the conical cylinder (6), a plurality of material guiding inclined plates (7) are fixedly arranged on the inner wall of the conical cylinder (6), one side long edge of the material guiding inclined plate (7) is fixed on the inner wall of the conical cylinder (6), the pipe inlet of each column pipe (2) corresponds to the inner end of one material guiding inclined plate (7), the outer end of the material guiding inclined plate (7) is obliquely arranged in the rotating direction of the kiln tail pipe (1) and is fixed on the inner wall of the material blocking ring plate (5), and the pipe outlet of the material inlet pipe (8) extends into the inside of the conical cylinder (6).

2. The carbonization rotary kiln kiln tail turbine feed structure according to claim 1, characterized in that: The outer wall of the pipe port of the column pipe (2) is tightly close to the inner wall of the small-diameter port of the conical cylinder (6).

3. The carbonization rotary kiln kiln tail turbine feed structure according to claim 1, characterized in that: The included angle between the material guiding inclined plate (7) and the conical cylinder (6) in the rotating direction of the kiln tail pipe (1) is an acute angle.

4. The carbonization rotary kiln kiln tail turbine feed structure of claim 1, wherein: The inner end of the material guiding inclined plate (7) extends into the corresponding column pipe (2) near one corner of the center of the kiln tail pipe (1).

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