Rotary kiln with good sealing performance

Abstract

The utility model relates to the technical field of rotary kilns, and discloses a rotary kiln with good sealing performance. The rotary kiln with the good sealing performance comprises a kiln body, a kiln opening is movably installed at one end of the kiln body, a cyclone seal is fixedly installed on the outer surface of one end of the kiln opening, a static ring is fixedly installed on the inner wall of the cyclone seal, a guide ring is fixedly installed on one side of the static ring, and a sealing cover is fixedly installed on one side of the guide ring. And a moving groove is fixedly formed in the inner wall of the sealing cover in an embedded mode, a moving ring is movably installed on the inner wall of the moving groove, and a static ring is movably connected to one side of the moving ring. The sealing performance of the kiln mouth structure is improved through the connection of the moving ring and the static ring, so that the sealing device has tight and reliable sealing performance and durable wear resistance in a certain pressure and temperature range, is small in friction resistance, stable in friction factor, low in wear speed, capable of automatically compensating to a certain extent, and reliable in impact resistance; and standardized sealing is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary kilns, in particular to a rotary kiln with good sealing performance. Background Art

[0002] A rotary kiln refers to a rotary calcining kiln (commonly known as a rotary kiln), which belongs to the category of building materials equipment. According to the different materials processed, rotary kilns can be divided into cement kilns, metallurgical chemical kilns and lime kilns. Cement kilns are mainly used to calcine cement clinker, and are divided into two categories: dry-process cement kilns and wet-process cement kilns. Cement calcination is achieved through the processing of rotary kilns, which facilitates the processing of cement.

[0003] The existing referenceable Chinese utility model patent with announcement number: CN218296695U discloses a sealing device for a rotary kiln furnace. The utility model includes: a tank body, a through groove, a connecting pipe, a first connecting plate, a second connecting plate, a screw, a nut, a sealing cover, a through hole, a placement groove and a sealing gasket. Through grooves are provided in the middle of both ends of the tank body. The two ends of the tank body are connected to the outside of the through groove and a connecting pipe is installed. The first connecting plate is fixed to the outside of one end of the connecting pipe away from the tank body. There are two second connecting plates in total. A sealing cover is fixed in the middle of one side of the second connecting plate. A placement groove is provided in the middle of the side of the second connecting plate away from the sealing cover. The sealing gasket is placed inside the placement groove. Through holes are provided in the middle of the outer sides of the first connecting plate and the second connecting plate in a circular array. The utility model is beneficial to sealing the two ends of the rotary kiln when calcining cement.

[0004] During the operation of the rotary kiln, cement flying sand can easily enter the kiln through the kiln mouth of the rotary kiln, resulting in reduced cement material calcination processing effect, while reducing the sealing effect of the rotary kiln, reducing the sealing performance and long-term wear resistance, affecting the operation of the rotary kiln and reducing the efficiency of cement calcination processing. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the utility model provides a rotary kiln with better sealing performance, which has the advantages of increasing the sealing performance, improving the working efficiency of the rotary kiln, and improving the efficiency of cement material calcining, thereby solving the above technical problems.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: the rotary kiln with good sealing performance comprises a kiln body used for cement processing and calcining, one end of the kiln body is movably equipped with a kiln mouth for adding materials, one end of the kiln mouth is fixedly equipped with a cyclone seal for sealing, the inner wall of the cyclone seal is fixedly equipped with a static ring for sealing performance, one side of the static ring is fixedly equipped with a guide ring for connection and cooperation, one side of the guide ring is fixedly equipped with a sealing cover for sealing and cooperation, the inner wall of the sealing cover is fixedly equipped with a moving groove for movement, the inner wall of the moving groove is movably equipped with a moving ring for sealing, and one side of the moving ring is movably connected with a static ring.

[0009] As a preferred technical solution of the utility model, the guide ring is fixedly installed inside the kiln mouth, and the sealing cover is fixedly installed on the inner wall of the kiln mouth; the sealing cover increases the sealing performance of the connection between the kiln mouth and the kiln furnace.

[0010] As a preferred technical solution of the utility model, a sealing sleeve is fixedly installed on the outer surface of the kiln mouth, a groove is fixedly installed on the inner wall of the sealing sleeve, and a kiln body is movably installed on the inner wall of the groove; the groove connects the kiln mouth and the kiln body.

[0011] As a preferred technical solution of the utility model, a connecting ring is fixedly installed on one side of the moving ring, a snap ring is fixedly installed on one side of the connecting ring, and a snap groove is movably connected to the outer surface of the snap ring; the snap ring and the connecting ring are used in conjunction with each other.

[0012] As a preferred technical solution of the utility model, a buffer ring is fixedly installed on one side of the buckle groove, and the buffer ring is fixedly installed inside the sealing cover; the buffer ring plays a buffering role and is used in conjunction with the sealing structure.

[0013] As a preferred technical solution of the utility model, a feed pipe is fixedly installed at one end of the sealing cover, and one end of the feed pipe is fixedly connected to one end of the inner wall of the kiln body; the feed pipe cooperates with the kiln mouth to add materials into the kiln body.

[0014] As a preferred technical solution of the utility model, the connecting ring is movably connected to the inner wall of the movable groove, and the buckle groove is fixedly installed at one end of the inner wall of the movable groove; the movable ring is connected to the inner wall of the movable groove with the connecting ring for coordinated use.

[0015] Compared with the prior art, the utility model provides a rotary kiln with better sealing performance, which has the following beneficial effects:

[0016] 1. The utility model installs a cyclone seal at the kiln mouth, the cyclone seal carries an inner wall static ring, one side of the static ring is connected to a guide ring, one end of the guide ring is connected to a sealing cover for use, the sealing cover is installed on the inner wall of the kiln mouth for use, the inner wall of the sealing cover is embedded with a movable groove, a movable ring is movably installed inside the movable groove, the movable ring and the static ring are connected to each other for use, but when the kiln body is in use, the movable ring and the static ring are connected, the sealing of the kiln mouth structure is increased, so that it has a tight and reliable sealing performance within a certain pressure and temperature range, long-lasting wear resistance, small friction resistance, stable friction factor, slow wear speed, and can automatically compensate to a certain extent, with reliable impact resistance, to achieve standardized sealing;

[0017] 2. The utility model uses a cyclone seal to wrap the entire kiln mouth, and uses the kiln head cooling fan to send air to the kiln mouth cylinder to cool down the remaining air to form a slight positive pressure in the sealing cavity, thereby achieving a sealing effect. The static ring is designed at the kiln mouth to directly block the flying sand in the kiln, thereby increasing the sealing performance of the rotary kiln. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an overall schematic diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the kiln mouth of the utility model;

[0020] Figure 3 This is a schematic diagram of the cyclone seal of the utility model;

[0021] Figure 4 This is a schematic diagram of the sealing cover of the utility model;

[0022] Figure 5 It is a schematic diagram of the dynamic ring of the utility model.

[0023] Among them: 1. kiln body; 2. kiln mouth; 3. sealing sleeve; 31. groove; 4. cyclone seal; 41. static ring; 42. guide ring; 43. sealing cover; 44. movable groove; 45. moving ring; 46. connecting ring; 47. snap ring; 48. snap groove; 49. buffer ring; 410. feed pipe. DETAILED DESCRIPTION

[0024] The following is a further detailed description of the implementation of the present utility model in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0025] In the description of the present invention, unless otherwise specified, "multiple" means two or more than two; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] Combined with Figure 1-Figure 5 In the present embodiment, a rotary kiln with better sealing performance includes a kiln body 1, a kiln mouth 2 is movably installed at one end of the kiln body 1, a cyclone seal 4 is fixedly installed on the outer surface of one end of the kiln mouth 2, a static ring 41 is fixedly installed on the inner wall of the cyclone seal 4, a guide ring 42 is fixedly installed on one side of the static ring 41, a sealing cover 43 is fixedly installed on one side of the guide ring 42, a movable groove 44 is fixedly installed on the inner wall of the sealing cover 43, a movable ring 45 is movably installed on the inner wall of the movable groove 44, and one side of the movable ring 45 is movably connected to the static ring 41.

[0028] Specifically, a kiln mouth 2 is connected with one end of the kiln body 1, and the kiln mouth 2 is used to add cement materials into the kiln body 1 for processing and calcining. A cyclone seal 4 is installed at the kiln mouth 2 structure, and the cyclone seal 4 is used with a static ring 41. The static ring 41 and the guide ring 42 are fast, and the guide ring 42 and the sealing cover 43 are fixedly connected. The inner wall of the sealing cover 43 is embedded with a movable groove 44 for cooperation. A dynamic ring 45 structure is installed on the inner wall of the movable groove 44. The dynamic ring 45 and the static ring 41 are connected and used in cooperation, which is convenient for increasing the sealing of the kiln mouth 2, avoiding flying sand from splashing into the kiln body 1, and facilitating the use of cement material calcination processing. The dynamic ring 45 and the static ring 41 are used to improve the sealing performance of the rotary kiln.

[0029] The guide ring 42 is fixedly installed inside the kiln opening 2 , and the sealing cover 43 is fixedly installed on the inner wall of the kiln opening 2 .

[0030] A sealing sleeve 3 is fixedly mounted on the outer surface of the kiln mouth 2 , a groove 31 is fixedly mounted on the inner wall of the sealing sleeve 3 , and the kiln body 1 is movably mounted on the inner wall of the groove 31 .

[0031] A connecting ring 46 is fixedly mounted on one side of the moving ring 45 , a buckle ring 47 is fixedly mounted on one side of the connecting ring 46 , and a buckle groove 48 is movably connected to the outer surface of the buckle ring 47 .

[0032] A buffer ring 49 is fixedly mounted on one side of the buckle groove 48 , and the buffer ring 49 is fixedly mounted inside the sealing cover 43 .

[0033] Specifically, the guide ring 42 is connected to the inner wall of the kiln mouth 2, so that the cyclone seal 4 can wrap the kiln mouth 2 for use. At the same time, a sealing sleeve 3 is installed on the outer surface of the kiln mouth 2, and a groove 31 is embedded in the sealing sleeve 3. The groove 31 connects the kiln mouth 2 and the kiln body 1, which is convenient for increasing the sealing performance of the connection between the kiln mouth 2 and the kiln body 1, and conveniently increases the use of rotary kiln structures with better sealing performance, thereby increasing the use of cement material processing and calcination work.

[0034] A material inlet pipe 410 is fixedly mounted on one end of the sealing cover 43 , and one end of the material inlet pipe 410 is fixedly connected to one end of the inner wall of the kiln body 1 .

[0035] The connecting ring 46 is movably connected to the inner wall of the moving groove 44 , and the buckle groove 48 is fixedly installed at one end of the inner wall of the moving groove 44 .

[0036] Specifically, one end of the sealing cover 43 is connected to the feed pipe 410, and one end of the feed pipe 410 is correspondingly connected to one end inside the kiln body 1, so as to facilitate the kiln mouth 2 to add materials into the kiln body 1 for processing and calcining, further increase the sealing use between the kiln mouth 2 and the kiln body 1, and increase the closed use of the rotary kiln.

[0037] Working principle: The kiln mouth 2 and the kiln body 1 are connected, and a sealing sleeve 3 is installed at the connection point between the kiln mouth 2 and the kiln body 1. The inner wall of the sealing sleeve 3 is embedded with a groove 31. The groove 31 wraps the kiln mouth 2 and the kiln body 1, so as to increase the connection and sealing performance between the kiln mouth 2 and the kiln body 1, and improve the cement material added to the kiln body 1 for processing and calcining. Then, the kiln mouth 2 structure is wrapped with a cyclone seal 4. The cyclone seal 4 is used with a static ring 41. The static ring 41 is connected to one side of the kiln mouth 2 structure. One side of the static ring 41 carries a guide ring 42. One side of the guide ring 42 is connected to a sealing cover 43. The sealing cover 43 is installed at the kiln mouth 2. The inner wall of the structure, the inner wall of the sealing cover 43 is embedded with the movable groove 44, and the inner wall of the movable groove 44 is installed with a moving ring 45 structure. One side of the moving ring 45 is equipped with a connecting ring 46, and the connecting ring 46 is equipped with a snap ring 47. By installing a buffer ring 49 at one end of the inner wall of the sealing cover 43, one side of the buffer ring 49 is connected to the snap groove 48. When the kiln body 1 is in operation, the moving ring 45 is moved on the inner wall of the movable groove 44 by controlling a certain pressure and temperature inside the kiln body 1. The moving ring 45 moves to the side of the static ring 41, so that the moving ring 45 and the static ring 41 are connected, thereby increasing the closed and sealed use of the rotary kiln furnace and facilitating the use of the rotary kiln furnace with better sealing performance.

[0038] Although 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 rotary kiln with good sealing performance, comprising a kiln body (1), characterized in that: A kiln mouth (2) is movably mounted on one end of the kiln furnace body (1); a cyclone seal (4) is fixedly mounted on the outer surface of one end of the kiln mouth (2); a stationary ring (41) is fixedly mounted on the inner wall of the cyclone seal (4); a guide ring (42) is fixedly mounted on one side of the stationary ring (41); a sealing cover (43) is fixedly mounted on one side of the guide ring (42); a movable groove (44) is fixedly mounted on the inner wall of the sealing cover (43); a movable ring (45) is movably mounted on the inner wall of the movable groove (44); and one side of the movable ring (45) is movably connected to the stationary ring (41).

2. A rotary kiln with good sealing performance according to claim 1, characterized in that: The guide ring (42) is fixedly mounted inside the kiln opening (2), and the sealing cover (43) is fixedly mounted on the inner wall of the kiln opening (2).

3. The rotary kiln with good sealing performance according to claim 1, characterized in that: A sealing sleeve (3) is fixedly mounted on the outer surface of the kiln mouth (2), a groove (31) is fixedly mounted on the inner wall of the sealing sleeve (3), and a kiln body (1) is movably mounted on the inner wall of the groove (31).

4. The rotary kiln with good sealing performance according to claim 1, characterized in that: A connecting ring (46) is fixedly mounted on one side of the moving ring (45), a buckle ring (47) is fixedly mounted on one side of the connecting ring (46), and a buckle groove (48) is movably connected to the outer surface of the buckle ring (47).

5. A rotary kiln with good sealing performance according to claim 4, characterized in that: A buffer ring (49) is fixedly mounted on one side of the buckle groove (48), and the buffer ring (49) is fixedly mounted inside the sealing cover (43).

6. The rotary kiln with good sealing performance according to claim 1, characterized in that: A feed pipe (410) is fixedly mounted on one end of the sealing cover (43), and one end of the feed pipe (410) is fixedly connected to one end of the inner wall of the kiln body (1).

7. The rotary kiln with good sealing performance according to claim 4, characterized in that: The connecting ring (46) is movably connected to the inner wall of the movable groove (44), and the buckle groove (48) is fixedly installed at one end of the inner wall of the movable groove (44).

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