A rotary kiln sealing system

Abstract

The present invention discloses a rotary kiln sealing system, including a rotary kiln, a kiln tail smoke chamber is sleeved at the tail of the rotary kiln, a first sealing part is installed at the gap between the kiln tail smoke chamber and the rotary kiln, the first sealing part is connected to a fixing part, the fixing part is fixedly connected to the outer wall of the rotary kiln and the kiln tail smoke chamber, a second sealing part is arranged above the first sealing part, and the second sealing part is installed on the fixing part. The system realizes the sealing of the gap between the kiln tail smoke chamber and the rotary kiln through the first sealing part, and forms a sealing cavity through the second sealing part and the fixing part, so as to prevent the first sealing part from being worn and leaked, and has a better sealing effect than a single-layer seal.

Description

Technical Field

[0001] The invention relates to the technical field of sealing, and in particular to a rotary kiln sealing system. Background Art

[0002] The rotary kiln is mainly suitable for the incineration of solid waste. It is a multi-purpose incinerator with strong adaptability and can incinerate various forms of waste. In addition to non-combustibles with high content of heavy metals, water or inorganic compounds, all kinds of combustible wastes in different states (solid, liquid, sludge, etc.) and shapes (granular, powdery, block and barrel) can be sent to the rotary kiln for incineration. The rotary kiln is widely used in petrochemical, cement and other industries. During the working process of the rotary kiln, the rotary kiln is mainly processed by rotating the rotary kiln. A kiln tail smoke chamber is set at the kiln tail of the rotary kiln for exhaust. During the processing, the rotary kiln rotates, the kiln tail smoke chamber does not move, and the generated gas is discharged through the kiln tail smoke chamber. Since the kiln tail of the rotary kiln rotates relative to the kiln tail smoke chamber, there is a gap between the kiln tail and the kiln tail smoke chamber. In order to prevent gas leakage, the gap needs to be sealed. However, the existing sealing systems all use single-layer sealing, and there are different degrees of air leakage problems. Summary of the invention

[0003] The purpose of the present invention is to provide a rotary kiln sealing system to solve the problems mentioned in the background technology. To achieve the above purpose, the present invention provides the following technical solutions: a rotary kiln sealing system, comprising a rotary kiln, the tail of the rotary kiln is provided with a kiln tail smoke chamber, a first sealing part is installed at the gap between the kiln tail smoke chamber and the rotary kiln, the first sealing part is connected to a fixing part, the fixing part is fixedly connected to the outer wall of the rotary kiln and the kiln tail smoke chamber, a second sealing part is provided above the first sealing part, and the second sealing part is installed on the fixing part;

[0004] The first sealing part comprises an elastic pressing plate, the elastic pressing plate is sleeved on the rotary kiln, the rear side of the elastic pressing plate is connected to a connecting plate, the connecting plate is connected to the fixing part through a first compression spring, and the elastic pressing plate is sealed and connected to the gap between the kiln tail smoke chamber and the rotary kiln through the first compression spring;

[0005] The fixing part comprises a first fixing frame and a second fixing frame, the bottom of the first fixing frame is fixedly connected to the rotary kiln, the second fixing frame is fixedly installed on the kiln tail smoke chamber, and the first compression spring is connected to the first fixing frame.

[0006] Preferably, the second sealing part includes a limit block, two of which are fixedly mounted on the first fixing frame and the second fixing frame respectively, a second elastic pressure plate is provided at the bottom of the limit block, the top of the second elastic pressure plate is connected to the protective plate through a second compression spring, the second elastic pressure plate is located above the elastic pressure plate, and the protective plate is connected to the first fixing frame.

[0007] Preferably, a sealing groove is provided on the rotary kiln, and the bottom of the elastic pressure plate is located in the sealing groove.

[0008] Preferably, sealing protrusions are provided at the upper and lower ends of the elastic pressure plate, an upper sealing groove is opened on the side wall of the kiln tail smoke chamber, and the sealing protrusion on the upper end of the elastic pressure plate is installed inside the upper sealing groove.

[0009] Preferably, a sealing limiting protrusion is provided above the second elastic pressing plate, a sealing limiting groove is provided at the bottom of the limiting block, and the sealing limiting protrusion is located inside the sealing limiting groove.

[0010] The technical effects and advantages of the present invention are as follows: the system realizes sealing at the gap between the kiln tail smoke chamber and the rotary kiln through the first sealing part, and forms a sealed cavity through the second sealing part and the fixed part to prevent the first sealing part from wearing and leaking, and has a better sealing effect than a single-layer seal. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the present invention;

[0012] Figure 2 It is a schematic diagram of the installation of the first sealing part of the present invention.

[0013] In the figure: 1-rotary kiln, 2-kiln tail smoke chamber, 3-elastic pressure plate, 4-connecting plate, 5-first compression spring, 6-first fixed frame, 7-second fixed frame, 8-limiting block, 9-second elastic pressure plate, 10-second compression spring, 11-protective plate, 12-sealing limiting protrusion, 13-sealing limiting groove, 14-sealing groove, 15-sealing protrusion, 16-upper sealing groove, 17-driving motor, 18-driving gear, 19-gear ring, 20-fixing part. DETAILED DESCRIPTION

[0014] In order to make the technical means for realizing the present invention, the creative features, the objectives and effects to be achieved easy to understand, the present invention is further explained below in conjunction with specific diagrams. In the description of the present invention, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, an integral connection or a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two components.

[0015] Example 1

[0016] like Figure 1-Figure 2A rotary kiln sealing system shown in the figure comprises a rotary kiln 1, a kiln tail smoke chamber 2 is sleeved at the tail of the rotary kiln 1, a first sealing part is installed at the gap between the kiln tail smoke chamber 2 and the rotary kiln 1, the first sealing part is connected to a fixing part 20, the fixing part 20 is fixedly connected to the outer wall of the rotary kiln 1 and the kiln tail smoke chamber 2, a second sealing part is arranged above the first sealing part, and the second sealing part is installed on the fixing part 20;

[0017] The first sealing part includes an elastic pressure plate 3, which is sleeved on the rotary kiln 1. The rear side of the elastic pressure plate 3 is connected to a connecting plate 4. The connecting plate 4 is connected to a first fixing frame 6 of the fixing part through a first compression spring 5. The bottom of the first fixing frame 6 is fixedly connected to the rotary kiln 1. The second fixing frame 7 of the fixing part 20 is fixedly installed on the kiln tail smoke chamber 2. The first compression spring 5 is in a compression state. Under the action of the first compression spring 5, the elastic pressure plate 3 is sealed and connected to the gap between the kiln tail smoke chamber 2 and the rotary kiln 1 to prevent smoke leakage from the gap.

[0018] Example 2

[0019] like Figure 1-Figure 2 A rotary kiln sealing system shown in the figure comprises a rotary kiln 1, a kiln tail smoke chamber 2 is sleeved at the tail of the rotary kiln 1, a first sealing part is installed at the gap between the kiln tail smoke chamber 2 and the rotary kiln 1, the first sealing part is connected to a fixing part 20, the fixing part 20 is fixedly connected to the outer wall of the rotary kiln 1 and the kiln tail smoke chamber 2, a second sealing part is arranged above the first sealing part, and the second sealing part is installed on the fixing part 20;

[0020] The first sealing part includes an elastic pressure plate 3, which is sleeved on the rotary kiln 1. The rear side of the elastic pressure plate 3 is connected to a connecting plate 4. The connecting plate 4 is connected to a first fixing frame 6 of the fixing part through a first compression spring 5. The bottom of the first fixing frame 6 is fixedly connected to the rotary kiln 1. The second fixing frame 7 of the fixing part 20 is fixedly installed on the kiln tail smoke chamber 2. A sealing groove 14 is provided on the rotary kiln 1. The bottom of the elastic pressure plate 3 is located in the sealing groove 14. Sealing protrusions 15 are provided at the upper and lower ends of the elastic pressure plate 3. An upper sealing groove 16 is provided on the side wall of the kiln tail smoke chamber 2. The sealing protrusion 15 at the upper end of the elastic pressure plate 3 is installed inside the upper sealing groove 16. Among them, the first compression spring 5 is in a compressed state. Under the action of the first compression spring 5, the elastic pressure plate 3 is connected to the gap between the kiln tail smoke chamber 2 and the rotary kiln 1 through the sealing protrusion 15, the sealing groove 14 and the upper sealing groove 16 to prevent smoke from leaking from the gap.

[0021] The second sealing part includes a limit block 8, two limit blocks 8 are provided, and are fixedly mounted on the first fixing frame 6 and the second fixing frame 7 respectively. A second elastic pressure plate 9 is provided at the bottom of the limit block 8, and the top of the second elastic pressure plate 9 is connected to the protective plate 11 through the second compression spring 10, and the protective plate 11 is connected to the first fixing frame 6. A sealing limit protrusion 12 is provided above the second elastic pressure plate 9, and a sealing limit groove 13 is provided at the bottom of the limit block 8. The sealing limit protrusion 12 is located inside the sealing limit groove 13, and the second elastic pressure plate 9 is located above the elastic pressure plate 3. The second compression spring 10 is in a stretched state, and under the action of the second compression spring 10, a sealing contact is formed between the second elastic pressure plate 9 and the limit block 8. When the elastic pressure plate 3 is worn out after long-term use, even if leakage occurs, the smoke will still be sealed and isolated by the second elastic pressure plate 9 and will not be dispersed in the air.

[0022] The process flow and working principle of the present invention are as follows: the driving motor 17 drives the driving gear 18 to rotate, and the driving gear 18 meshes with the gear ring 19 on the rotary kiln 1, thereby driving the rotary kiln 1 to rotate, and the smoke generated in the rotary kiln 1 overflows outward through the gap between the kiln tail smoke chamber 2 and the rotary kiln 1, and the elastic pressure plate 3 is sealed and installed at the gap under the action of the first compression spring 5, thereby preventing the leakage of smoke; the second elastic pressure plate 9 is located above the elastic pressure plate 3, and is sealed and contacted with the limit block 8 under the action of the second compression spring 10, and a sealed cavity is formed above the elastic pressure plate 3 in cooperation with the fixing part 20, thereby realizing a two-layer seal.

[0023] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A rotary kiln sealing system, comprising a rotary kiln, characterized in that: The tail of the rotary kiln is sleeved with a kiln tail smoke chamber, a first sealing part is installed at the gap between the kiln tail smoke chamber and the rotary kiln, the first sealing part is connected to a fixing part, the fixing part is fixedly connected to the outer wall of the rotary kiln and the kiln tail smoke chamber, a second sealing part is provided above the first sealing part, and the second sealing part is installed on the fixing part; The first sealing part comprises an elastic pressing plate, the elastic pressing plate is sleeved on the rotary kiln, the rear side of the elastic pressing plate is connected to a connecting plate, the connecting plate is connected to the fixing part through a first compression spring, and the elastic pressing plate is sealed and connected to the gap between the kiln tail smoke chamber and the rotary kiln through the first compression spring; The fixing part comprises a first fixing frame and a second fixing frame, the bottom of the first fixing frame is fixedly connected to the rotary kiln, the second fixing frame is fixedly installed on the kiln tail smoke chamber, and the first compression spring is connected to the first fixing frame; The second sealing part includes a limit block, two of which are fixedly mounted on the first fixing frame and the second fixing frame respectively, a second elastic pressure plate is provided at the bottom of the limit block, the top of the second elastic pressure plate is connected to the protective plate through a second compression spring, the second elastic pressure plate is located above the elastic pressure plate, and the protective plate is connected to the first fixing frame.

2. A rotary kiln sealing system according to claim 1, characterized in that: A sealing groove is provided on the rotary kiln, and the bottom of the elastic pressing plate is located in the sealing groove.

3. A rotary kiln sealing system according to claim 1, characterized in that: The upper and lower ends of the elastic pressing plate are provided with sealing protrusions, the side wall of the kiln tail smoke chamber is provided with an upper sealing groove, and the sealing protrusion on the upper end of the elastic pressing plate is installed inside the upper sealing groove.

4. A rotary kiln sealing system according to claim 1, characterized in that: A sealing limiting protrusion is arranged above the second elastic pressing plate, a sealing limiting groove is arranged at the bottom of the limiting block, and the sealing limiting protrusion is located inside the sealing limiting groove.

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