JP5110951B2 - Tire support structure in a horizontal rotary dryer. - Google Patents

Description

  The present invention relates to a tire support structure in a horizontal rotary dryer, and more particularly to a tire support structure in a horizontal rotary dryer used mainly for heating and drying raw materials of chemical products such as terephthalic acid resin powder.

  Conventionally, a horizontal rotary dryer is usually used to heat and dry a raw material of a chemical product such as terephthalic acid resin powder.

  As shown in FIG. 9, the horizontal rotary dryer manufactured and sold by the applicant of the present invention has tires 2a and 2b attached to the outer peripheral surface of a cylindrical main body 1 at a predetermined interval in the axial direction. The tires 2a and 2b are placed on rollers 4a and 4b provided on the bases 3a and 3b, and a gear 7 that is rotated by a driving device 6 is meshed with a gear gear 5 attached to the main body 1. And is configured to be rotated in the direction of the arrow by the driving device 6.

  And the to-be-dried object B1 which is a raw material of chemical products, such as a terephthalic acid resin powder, is supplied in the main body 1 from the supply port 8, is heat-dried by the steam C1 supplied in the heating pipe 12 from the steam inlet 9, and is processed. The dried product B2 is discharged from the discharge port 10. In FIG. 9, the steam C1 is supplied from the supply port 9, supplied in a distributed manner in the heating pipes 12 arranged around the inside of the main body 1, and the object to be heated is heated and dried. It becomes drain C2 and is discharged from the outlet 11.

  For reference, the specific structure of this type of dryer is also described in JP-A-2006-57880 and JP-A-2004-53183 (Patent Documents 2 and 3). .

(Tire support structure)
Annular tires 2a and 2b are arranged before and after the main body 1, and these tires are attached to the main body 1 via a reinforcing plate 13 and a liner 14 as shown in FIG. Since the two tires 2a and 2b have the same structure, the structure of one tire 2a will be described in detail. As shown in FIGS. 9 and 10, the strength of the main body 1 is applied to the outer peripheral surface of the main body 1. In order to improve this, a reinforcing plate 13 is attached, and a plurality of flat liners 14 are arranged on the outer periphery thereof at a predetermined interval in the circumferential direction.

In addition, as a structure for fixing the tire 2 to the main body 1, a plurality of shims are arranged around the main body 1, the tire 2 is fixed on the shim by shrink fitting, and a stopper is further arranged on the shim. The stopper and the shim are fixed by welding (for example, see Patent Document 1).
JP 2003-294365 A JP 2006-57880 A JP 2004-53183 A

  By the way, in the tire support structure in the above-described conventional horizontal rotary dryer, the adjustment of “center misalignment” between the main body and the tire cannot be easily performed. Not only does the structure for fixing the tire in position require a great deal of man-hours, but also the production costs are high.

  This problem is particularly noticeable in large rotary dryers. That is, in such a horizontal rotary dryer, it is necessary to align the rotation axis of the main body 1 with the rotation axis of each liner 14. For this alignment, the main body 1 is manufactured and each liner 14 is attached to the main body 1. Is carried out by machining the outer surface of the liner 14. In addition, such an axis alignment operation requires machining using a special large lathe (a lathe capable of cutting a large workpiece having a diameter of about 5 m and a length of 30 to 40 m). It takes a lot of time and labor, and the production time becomes long and the production cost is inevitably high.

  When the horizontal rotary dryer becomes large as described above, the liner 14 cannot be attached and machined substantially after the main body 1 is completed. For this reason, it has been attempted to divide the main body 1 into several units in the longitudinal direction as a unit main body, attach a liner 14 to the unit main body, and perform axial alignment by machining. In this case, There is a problem that it is difficult to align the axis of rotation of each unit body 1.

  The object of the present invention is to fix a tire accurately around the main body, which is a large and cylindrical body of the conventional rotary dryer, and to accurately and easily connect the axis of the tire and the axis of the main body. The object is to provide a tire support structure that can be matched.

  The tire support structure in the horizontal dryer according to the present invention is made to solve the conventional problems as described above, and is configured as follows.

The tire 2a, 2b is fixed to the outer peripheral surface of the cylindrical main body 1 that is supported sideways and orthogonal to the axis of the main body 1, and the tires 2a, 2b are supported by the rollers 4a, 4b. In a horizontal rotary dryer that is rotated by a drive device,
  A reinforcing plate 21 that is wider than the tires 2a and 2b and has a thickness that is gradually thinner from one edge toward the other is wound around the surface of the main body 1 in a body-wound shape and fixed to form a tapered surface. Further, a liner having a tapered surface opposite to the tapered surface of the reinforcing plate is provided in the circumferential direction of the tires 2a and 2b in the gap between the tapered surface of the reinforcing plate 21 and the inner peripheral surface of the tire. The tires 2a and 2b are fixed to the surface of the main body 1 by pressing the taper surface of the reinforcing plate 21 from the small diameter side toward the large diameter side at positions spaced apart from each other.

A reinforcing plate that is wider than the tire and has a plate thickness that is gradually thinner from one edge to the other is wound around the main body in a cylindrical shape and welded to the surface of the main body. A liner is pushed between the peripheral surface and the reinforcing plate to adjust the axis between the main body and the tire, and then the side surface of the liner is welded to the surface of the reinforcing plate.

The tire 2a, 2b is fixed to the outer peripheral surface of the cylindrical main body 1 that is supported sideways and orthogonal to the axis of the main body 1, and the tires 2a, 2b are supported by the rollers 4a, 4b. In a horizontal rotary dryer that is rotated by a drive device,
  A reinforcing plate 41 having a wider and uniform thickness than the tires 2a and 2b is wound around the surface of the main body 1 in a body-wound manner to reinforce the tire support portion of the main body 1, and the surface of the reinforcing plate 41 and the tire 2a, 2b, a pair of liners 42 and 43 are pushed into the gap between the inner peripheral surfaces of the tires 2a and 2b in the circumferential direction of the tires 2a and 2b from both sides of the tires 2a and 2b. 2a and 2b are fixed, and inclined surfaces of opposite angles are formed on the surface where the two liners 42 and 43 face each other, and these inclined surfaces are in contact with each other. The tires 2a and 2b are moved in the center direction of the width, and the tires 2a and 2b are fixed to the main body 1.

  As is clear from the above description, according to the tire support structure in the horizontal rotary dryer according to the present invention, the operation of feeding the liner in the axial direction of the main body along the tapered surface of the reinforcing plate is performed. Since the shaft center between the tire and the tire can be aligned, not only can the man-hours required for aligning the shaft be greatly reduced, but also the manufacturing period can be shortened and the manufacturing cost can be reduced.

  Hereinafter, an embodiment of a tire support structure in a horizontal rotary dryer according to the present invention will be described with reference to FIGS. 1 to 8.

  FIG. 1 is a front view showing a part of a main body 1 constituting a horizontal rotary dryer, and FIG. 2 is a cross-sectional view taken along line BB in FIG. As shown in FIG. 9, two tires 2 a and 2 b are attached to the main body 1 at a predetermined interval in the axial direction, and the tires 2 a and 2 b are mounted on the mounts 3 a and 3 b. It is placed on the rollers 4a and 4b provided. A gear 7 that is rotated by a drive device 6 is meshed with a girth gear 5 that is mounted perpendicular to the axis of the main body 1, and is rotated in the direction of the arrow by the drive device 6.

  The tires 2 a and 2 b that support the main body 1 are attached to the main body 1 via a reinforcing plate 21 and a liner 22. Since the tires 2a and 2b have the same structure, the structure of one of the tires 2a will be described. As shown in FIGS. 2 and 3, the outer peripheral surface of the main body 1 has a structure for improving the strength of the main body 1. A reinforcing plate 21 is attached, and an outer surface 21a thereof is formed in a tapered surface having a gentle inclination angle α in the axial direction of the main body 1 as shown in FIG.

  And this reinforcement board 21 is arrange | positioned in the outer peripheral surface of the main body 1 with the predetermined space | interval as needed, and the two are provided in this Example. A gap w is provided between the outer periphery of the reinforcing plate 21 and the inner circumference of the tire 2a, and the liner 22 is fed into the gap w in the direction of arrow D. That is, the inner surface 22 a of the liner 22 is formed with a tapered surface along the tapered surface 21 a formed on the outer surface of the reinforcing plate 21.

  Therefore, the height of the gap w is achieved by the sliding action of the tapered surfaces 21a and 22a by press-fitting the liner 22 into the gap w formed between the inner surface of the reinforcing plate 21 and the inner surface of the tire 2a. Can be adjusted. This adjustment action performs the action of aligning the axis of the tire 2 a with the axis of the main body 1.

(Other examples)
5 to 7 show a second embodiment of a tire support structure in a horizontal rotary dryer according to the present invention, in which a reinforcing plate 31 having a loosely tapered upper surface is provided on the main body 1 in the circumferential direction. It is wound around the body. A liner 32 having a lower surface with a tapered surface similar to that of the reinforcing plate 31 is laminated and disposed on the reinforcing plate 31, and the distance between the axis of the main body 1 and the surface of the tire 2a (the range of the gap w in FIG. 4). The inner distance) is adjusted and fixed on the reinforcing plate 31 by welding.

  Further, as shown in FIG. 7 which is a cross section taken along the line MM in FIG. 5 and a cross section taken along the line M-M ′ in FIG.

  Further, FIG. 8 shows a third embodiment of the tire support structure in the horizontal rotary dryer according to the present invention, and a reinforcing plate 41 having no taper is wound around the body 1 in a cylindrical shape in the circumferential direction. It has been. On this reinforcing plate 41, a liner 43 is formed by laminating the lower surface of the liner 42 formed with a loosely tapered surface on the upper surface, and the height of the gap w is increased by the sliding action between the tapered surfaces. It is configured so that it can be adjusted.

It is a cross-sectional view which shows a part of main body of the rotary dryer which shows embodiment of the tire support structure in the horizontal rotary dryer by this invention. It is a BB arrow line view of FIG. It is an enlarged view of the F section of FIG. It is a GG arrow line view of FIG. It is a partial sectional view of other examples of a tire support structure in a horizontal rotary dryer according to the present invention. It is sectional drawing of FIG. FIG. 7 is a cross-sectional view taken along line M-M ′ in FIG. 6. It is a partial sectional view of other embodiments of the tire support structure of the present invention. It is a partially broken perspective view of the conventional horizontal rotary dryer. It is a perspective view which shows the fixing structure of the conventional tire.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main body 2a, 2b Tire 3a, 3b Base 4a, 4b Roller 5 Garth gear 6 Drive device 7 Gear 8 Supply port 9 Carrier gas inlet 10 Outlet 11 Outlet 12 Heating pipes 13, 21, 31, 41 Reinforcing plates 14, 22, 32 , 42,43 liner

Claims (3)

In the horizontal rotary dryer, which is an outer peripheral surface of a cylindrical main body that is supported sideways, a tire is fixed at a position orthogonal to the axis of the main body, and the tire is supported by a roller and rotated by a driving device.
  A reinforcing plate that is wider than the tire and has a plate thickness that is gradually thinner from one edge to the other, is wound around the surface of the main body in a body-wound shape, fixed to form a tapered surface, In the gap between the tapered surface of the reinforcing plate and the inner peripheral surface of the tire, a liner having a tapered surface having an angle opposite to the tapered surface of the reinforcing plate, at a position spaced in the circumferential direction of the tire, A tire support structure in a horizontal dryer, wherein the tire is fixed to the surface of the main body by pressing from the small diameter side of the taper surface of the reinforcing plate toward the large diameter side. A reinforcing plate that is wider than the tire and has a plate thickness that is gradually thinner from one edge to the other is wound around the main body in a cylindrical shape and welded to the surface of the main body. 2. The side of the liner is welded to the surface of the reinforcing plate after the liner is pushed between the peripheral surface and the reinforcing plate to adjust the axis of the main body and the tire. Tire support structure in a horizontal dryer. In the horizontal rotary dryer, which is an outer peripheral surface of a cylindrical main body that is supported sideways, a tire is fixed at a position orthogonal to the axis of the main body, and the tire is supported by a roller and rotated by a driving device.
  A reinforcing plate having a wider and uniform thickness than that of the tire is wound around the surface of the main body like a cylinder to reinforce a tire supporting portion of the main body, and a gap between the surface of the reinforcing plate and the inner peripheral surface of the tire is provided. A structure in which a pair of liners is pushed into both sides of the tire at positions spaced apart in the circumferential direction of the tire to fix the tire, and the two liners face each other and come into contact with each other Are formed on surfaces having angles opposite to each other, and are moved in the center direction of the tire while these surfaces are in contact with each other, and the tire is fixed to the main body. .

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