CN-224223143-U - Sectional type processing and assembling device for large rotary kiln cylinder

CN224223143UCN 224223143 UCN224223143 UCN 224223143UCN-224223143-U

Abstract

The utility model discloses a sectional type processing and assembling device for a large rotary kiln barrel, which is characterized in that a rotary kiln barrel is divided into a first barrel and a second barrel, support assemblies are detachably arranged at two ends of the sectional barrel close to the inside of an end head, a central shaft of the two groups of support assemblies is connected with a driving mechanism through a bearing, the driving mechanism drives the sectional barrel to rotate, a butt joint assembly is fixedly arranged on the circumference of the inner wall of the end part of the butt joint part of the two sections of sectional barrels, the first barrel and the second barrel are assembled and welded into an integral rotary kiln barrel through the butt joint assembly, the device is scientific and reasonable in design, the large rotary kiln barrel is processed in sections, multidirectional flexible processing is provided for the large rotary kiln barrel, concave flanges and convex flanges which are matched with each other are arranged on the inner wall of the butt joint end of the sectional barrel, centering butt joint positioning accuracy is improved when the sectional barrel is assembled, the integral assembly production efficiency of the large rotary kiln body is improved, and normal safe operation of the rotary kiln is ensured.

Inventors

CHEN TAO
CHEN JIWEI
ZHAO MENGHUI
Han Wanghe
BAI JIE

Assignees

中实洛阳重型机械有限公司

Dates

Publication Date: 20260512
Application Date: 20250526

Claims (10)

1. A sectional type machining and assembling device for a large rotary kiln barrel is characterized in that the rotary kiln barrel is divided into a first barrel and a second barrel, base plates are fixedly arranged in an annular array mode along the circumference of the left side of the first barrel and the circumference of the right side of the second barrel, supporting components are detachably arranged in the two ends of the first barrel close to ends of the second barrel, middle shafts of the middle parts of the two groups of supporting components are connected with a driving mechanism through bearings, the driving mechanism drives the first barrel to rotate, a butt joint component is fixedly arranged on the circumference of the inner wall of the end part of a butt joint part of the first barrel and the second barrel, and the first barrel and the second barrel are assembled in a butt joint mode through the butt joint component and welded into an integral rotary kiln barrel.
2. The sectional type processing and assembling device for the large rotary kiln cylinder body is characterized in that the supporting component comprises a transition disc and a middle shaft, the bottom surface of the transition disc is a circular bottom plate, a reinforcing ring plate and a rib plate are fixedly arranged at the bottom of the bottom plate, an inner hollow middle shaft is arranged at the middle position of the upper part of the bottom plate, bolt holes are formed in the circumference of the bottom edge of the middle shaft, the middle shaft is fixedly arranged on the bottom plate through bolts, connecting members are uniformly distributed on the bottom plate close to the peripheral position along the circumferential direction and are radially arranged on the transition disc, the center line of each connecting member passes through the center point of the transition disc, an adjusting member is arranged on the connecting member, and the inner supporting member is fixedly connected to the upper part of the adjusting member.
3. The sectional type processing and assembling device for the large rotary kiln cylinder body is characterized in that the bottom of a connecting component is a rectangular fixed bottom plate, the connecting component is fixed on a bottom plate of a transition plate through bolt holes at four corners of the fixed bottom plate by bolts, a vertical plate is fixedly arranged on the front side, close to the center of the bottom plate, of the fixed bottom plate, a threaded hole is formed in the middle of the vertical plate, and supporting rib plates are fixedly arranged on two sides of the threaded hole of the vertical plate and perpendicular to the vertical plate.
4. A sectional type machining and assembling device for a large rotary kiln cylinder body is characterized in that an adjusting member comprises an adjusting bottom plate, waist-shaped long holes are symmetrically formed in two sides of the adjusting bottom plate, a rectangular four-side adjusting frame is fixedly arranged on the adjusting bottom plate, threaded holes are formed in a front frame plate, close to the center side of the bottom plate, of the adjusting frame, an adjusting screw rod penetrates through the position, close to the center side of the bottom plate, of the adjusting member, an adjusting nut is integrally arranged between a vertical plate of the connecting member and the threaded holes in the front frame plate, the positions and the sizes of the threaded holes in the vertical plate and the front frame plate are matched with those of the adjusting screw rod, and bolt holes are formed in a rear frame plate, far away from the center side of the bottom plate, of the adjusting frame.
5. The sectional type processing and assembling device for the cylinder body of the large rotary kiln, which is disclosed in claim 2, is characterized in that the inner supporting member comprises a supporting bottom plate, a supporting vertical plate is vertically and fixedly arranged on the front side of the upper part of the supporting bottom plate, bolt holes are formed in the supporting vertical plate, inner supporting plates are fixedly arranged on two sides of the supporting vertical plate and are vertical to the supporting bottom plate, the inner supporting plates are consistent with the length direction of the cylinder body, reinforcing rib plates are arranged on the bottom side of the supporting bottom plate, the top of the inner supporting member is contacted with the inner wall of the cylinder body, and one side, close to the inner wall of the cylinder body, of the supporting bottom plate and the inner supporting plate is provided with an arc degree consistent with the inner wall of the cylinder body.
6. A sectional machining and assembling device for a large rotary kiln cylinder body is characterized in that an adjusting member is connected with a fixed bottom plate of a connecting member through waist-shaped long holes at the lower parts of two sides of the adjusting member, the adjusting member is connected with a supporting bottom plate of an inner supporting member through waist-shaped long holes at the upper parts of two sides of the adjusting member, and a supporting vertical plate of the inner supporting member is fixedly connected with a rear frame plate of the adjusting member through fastening bolts.
7. The sectional type processing and assembling device for the cylinder body of the large rotary kiln is characterized in that a convex flange is fixedly arranged on the circumference of the inner wall of the right end face of the cylinder body in a circumferential direction, a round boss protruding outwards is arranged on the outer circumference side of the convex flange, the convex surface of the round boss is flush with the right end face of the cylinder body wall, concave rabbets are arranged on the inner side of the convex flange close to the round boss, bolt holes are uniformly distributed on the circumference of the concave rabbets, a concave flange is fixedly arranged on the circumference of the inner wall of the left end face of the cylinder body in a circumferential direction, a round groove is arranged on the outer circumference side of the concave flange, the groove face of the round groove is flush with the left end face of the cylinder body wall, a convex rabbet is arranged on the inner side of the concave flange close to the round groove, and bolt holes are uniformly distributed on the circumference of the convex rabbets.
8. The sectional type processing and assembling device for the cylinder body of the large rotary kiln, as set forth in claim 7, is characterized in that the height of the male spigot is larger than that of the female spigot, when the first cylinder body and the second cylinder body are assembled in a butt joint mode, the female spigot of the first cylinder body is contacted with the male spigot of the second cylinder body, a gap is reserved between the convex table surface of the first cylinder body and the groove surface of the second cylinder body, and a butt joint seam is arranged between the cylinder walls of the first cylinder body and the second cylinder body.
9. The sectional type processing and assembling device for the cylinder body of the large rotary kiln as claimed in claim 1, wherein the butt joint assembly is of a concave flange and convex flange assembly structure, the structural dimensions of the circular boss and the circular groove are matched, and the cylinder body I and the cylinder body II are fixedly butt-jointed and assembled through bolt holes of the concave flange and the convex flange.
10. The sectional type processing and assembling device for the large rotary kiln cylinder body is characterized in that grooves are formed in the butt joint of the cylinder body I and the cylinder body II respectively, the butt joint of the cylinder body I and the cylinder body II is facilitated, and right-angled triangular reinforcing rib plates are arranged on the non-connecting surface sides of the concave surface flange and the convex surface flange at intervals with the inner wall of the sectional cylinder body respectively.

Description

Sectional type processing and assembling device for large rotary kiln cylinder Technical Field The utility model belongs to the technical field of rotary kilns, and particularly relates to a sectional type processing and assembling device for a barrel of a large rotary kiln. Background With technological progress and development, the structure size of rotary equipment applied to the fields of chemical industry, metallurgy, cement, mine, electric power and the like is more large, for example, a rotary kiln is low-speed heavy-load rotary thermal equipment, the diameter of a cylinder body can reach 4000mm, the length of the cylinder body can reach over 16000mm, for the large-scale rotary equipment, the concentricity of a processing surface of an outer circumferential backing plate of the rotary kiln cylinder body can reach below 0.5mm, therefore, the method of welding and forming by a metal plate cannot be achieved, a large horizontal lathe is required to process the rotary kiln cylinder body, at present, the processing equipment of the large horizontal lathe is limited in capability and cannot meet the requirement of the large rotary kiln cylinder body, and in addition, from the consideration of a processing technology, the ultra-long cylinder body and the large weight thereof can generate deflection deformation during processing, and the coaxiality of cylinder body backing plates at two sides cannot be guaranteed, and the integral processing requirement of the large-scale overweight rotary kiln cylinder body cannot be met. For the oversized rotary kiln cylinder beyond the lathe machining range, the machining surface required on the rotary kiln cylinder can be machined in a segmented mode, all the sections of cylinders are assembled and welded into a whole, the motion and stress conditions of the rotary kiln in the running process are very complex, the stress conditions under the cold state and the hot state are also greatly changed, the overall coaxiality of the rotary kiln cylinder after the segmented assembly and welding is ensured, and if the precision cannot meet the requirement, the overall use effect of the rotary kiln is affected. In addition, in the machining process of each section of rotary kiln barrel, the barrel structural member needs to be fixed and rotated, extremely high requirements are provided for the stability of a fixing device, the situation that the barrel structure is deformed due to overlarge clamping force or the clamping force is too small to be effectively fixed possibly occurs, the barrel structure is kept stable and fixed in the rotating process, and the barrel is supported by adopting what type of fixing device so as to facilitate the turning of the rotary kiln barrel, so that the problem to be solved is also needed. Disclosure of Invention The utility model aims to solve the technical problems, and provides a sectional type processing and assembling device for a large rotary kiln cylinder, which is used for sectional processing of the large rotary kiln cylinder, wherein supporting components are arranged on the inner walls of two ends of the sectional cylinder and are fixedly connected with rotary driving to drive the sectional cylinder to rotate, multidirectional flexible processing is provided for the large rotary kiln cylinder, concave-convex surface abutting components which are mutually matched are fixedly arranged on the inner walls of abutting ends of the sectional cylinder respectively, the abutting surfaces of the abutting components and the processing surfaces of backing plates on the circumference of the sectional cylinder are synchronously processed, the perpendicularity and the processing precision of the abutting surfaces of the sectional cylinder are ensured, the accuracy of abutting positions during the assembly of the sectional cylinder is improved, and the processing difficulty of the large rotary kiln cylinder is solved. The technical scheme includes that the sectional type processing and assembling device for the large rotary kiln cylinder body comprises a first cylinder body and a second cylinder body, base plates are fixedly arranged in an annular array along the circumferential direction of the left side of the first cylinder body and the circumferential direction of the right side of the second cylinder body, supporting components are detachably arranged in the two ends of the sectional cylinder body close to the end heads, a middle shaft in the middle of the two groups of supporting components is connected with a driving mechanism through a bearing, the driving mechanism drives the sectional cylinder body to rotate, a butt joint component is fixedly arranged on the circumferential direction of the inner wall of the end part of the butt joint part of the two sections of sectional cylinder bodies, and the first cylinder body and the second cylinder body are assembled in a butt joint mode through the butt joint component and welded into the integral rotar