JP6834628B2 - Lance tube braces and braces - Google Patents

Description

The present invention relates to a lance tube straightening device and a straightening method. More specifically, the present invention relates to orthodontic appliances and methods for correcting the bending of the lance tube provided in the soot blower.

The smelting gas discharged from the flash smelting furnace is guided to the exhaust heat boiler, and the heat is recovered. If smoke ash adheres to the water wall pipe inside the exhaust heat boiler, the thermal conductivity will decrease and the heat recovery efficiency will decrease. In addition, the smoke ash reacts with the water contained in the smelting gas and causes corrosion of the water wall pipe. Therefore, the exhaust heat boiler is provided with a soot blower that removes the attached smoke ash.

The soot blower is equipped with a telescopically constructed lance tube. At the time of use, the lance tube is extended and inserted into the exhaust heat boiler, and air is blown out from the tip of the lance tube to drop smoke ash. During standby, the lance tube is contracted and removed from the heat exhaust steam generator.

Since the lance tube is a long tubular member, it bends due to its own weight and the heat inside the exhaust heat boiler as it is used repeatedly. If the lance tube bends too much, it needs to be corrected. Patent Documents 1 and 2 disclose an apparatus for correcting bending of a lance tube.

The exhaust heat boiler is installed at a high place in consideration of the rise of smelting gas discharged from the flash smelting furnace. In addition, the scaffolding provided in the exhaust heat boiler is secured only to the minimum necessary size in order to reduce the construction cost. Therefore, in general, the lance tube is installed in a high place or a narrow place, and when the lance tube is bent, it is necessary to carry the orthodontic appliance to the high place or the narrow place. Moreover, since a plurality of exhaust heat boilers are installed apart from each other, it is necessary to carry a straightening device every time the lance tube needs to be straightened. However, since conventional orthodontic appliances are heavy and bulky, it is difficult to go up and down narrow stairs with orthodontic appliances. If there was no means of delivery around the exhaust heat boiler, it was necessary to arrange a crane or the like.

Jikkenhei 4-64417 Japanese Unexamined Patent Publication No. 2014-156942

In view of the above circumstances, an object of the present invention is to provide an orthodontic appliance that is easy to carry.
Another object of the present invention is to provide a method for correcting a lance tube using the orthodontic appliance.

The lance tube orthodontic appliance of the first invention is removable to a rod-shaped base material, a pair of cords attached to both ends of the base material and hung around the lance tube, and a central portion of the base material. A receiving material provided with a jack that widens between the base material and the lance tube, an installation plate provided at the bottom of the jack, and a recess provided at the center of the base material into which the installation plate fits. It is characterized by having.
The lance tube orthodontic appliance of the second invention is removable to a rod-shaped base material, a pair of cords attached to both ends of the base material and hung around the lance tube, and a central portion of the base material. A jack provided to widen the space between the base material and the lance tube, an installation plate provided at the bottom of the jack, and a holding material provided at the center of the base material to slide-fit the installation plate. It is characterized by having.
The method for straightening a lance tube according to the third invention is characterized in that the bending of the lance tube is straightened by using the straightening device of the first or second invention.

According to the first invention, since the cord can be placed along the base material and the jack can be removed from the base material, the orthodontic appliance can be stored compactly and is easy to carry. In addition, the jack can be attached to the base material simply by fitting the installation plate into the receiving material.
According to the second invention, since the installation plate is slid-fitted to the holding material, the jack does not tilt with respect to the base material, which is safe.
According to the third invention, the bending of the lance tube can be corrected.

It is a front view of the orthodontic appliance which concerns on 1st Embodiment of this invention. FIG. 1 is a cross-sectional view taken along the line II-II in FIG. FIG. 1 is a partial sectional view taken along line III-III in FIG. It is a top view of the base material of the orthodontic appliance. It is a front part enlarged view of the orthodontic appliance which concerns on 2nd Embodiment of this invention. FIG. 5 is a cross-sectional view taken along the line VI-VI in FIG. It is explanatory drawing of the soot blower.

Next, an embodiment of the present invention will be described with reference to the drawings.
[First Embodiment]
(Lance tube)
First, the lance tube will be described.
As shown in FIG. 7, the soot blower 100 includes a lance tube 110. The lance tube 110 is telescopically configured from the inner tube 111 and the outer tube 112. An air supply source 130 is connected to the base end of the inner pipe 111 via a head valve 120. An injection nozzle 113 is provided at the tip of the outer tube 112. The air supplied from the air supply source 130 passes through the inside of the lance tube 110 and is injected from the injection nozzle 113.

At the time of use, the lance tube 110 is extended and inserted into the heat exhaust boiler 200. Smoke ash is dropped by ejecting air from the injection nozzle 113. During standby, the lance tube 110 is contracted and extracted from the exhaust heat boiler 200.

Since the lance tube 110, particularly the outer tube 112, is a long tubular member, it bends due to its own weight and the heat inside the exhaust heat boiler 200 as it is used repeatedly. When the bending of the outer pipe 112 becomes large, it is necessary to correct the bending. Orthodontic appliances are used to correct the bending of the outer tube 112.

(Orthodontic appliance)
Next, the orthodontic appliance 1 according to the first embodiment of the present invention will be described.
As shown in FIG. 1, the orthodontic appliance 1 includes a base material 10, a pair of cords 20 and 20, and a jack 30. The base material 10 is a rod-shaped member having a length required for straightening the outer tube 112. The base material 10 is formed by processing, for example, H-shaped steel or C-shaped steel. The weight may be reduced by scraping off the corners or forming holes 15 (see FIG. 4) to the extent that the strength is not affected.

Mounting holes 11 and 11 are formed at both ends of the base material 10. The pair of cords 20 are attached to both ends of the base material 10 using the attachment holes 11 and 11. An annular reinforcing plate 12 may be joined around the mounting hole 11 to reinforce the peripheral portion of the mounting hole 11.

As shown in FIG. 2, both ends of the cord 20 are fixed to the mounting holes 11 by mounting brackets 21 such as shackles. When correcting the outer tube 112, the cord 20 is hung around the outer tube 112. The cord 20 is not particularly limited as long as it has the strength required for straightening the outer pipe 112, but a twisted steel wire, a chain, or the like can be used.

As shown in FIGS. 3 and 4, a receiving material 13 having a rectangular recess 13a is provided on the upper surface of the central portion of the base material 10. On the other hand, a rectangular installation plate 31 is provided on the bottom (cylinder cap) of the jack 30. The jack 30 can be attached to the central portion of the base material 10 simply by fitting the installation plate 31 into the recess 13a of the receiving material 13. Moreover, the jack 30 is removable with respect to the base material 10. The installation plate 31 may be fixed to the jack 30 with bolts or the like so as to be removable.

A support member 32 having a U-shaped cross section is provided at the tip of the rod of the jack 30. By fitting the outer tube 112 into the recess of the support member 32, the outer tube 112 can be firmly supported so as not to shift. The support member 32 is preferably provided detachably with respect to the jack 30.

As the jack 30, various types such as a hydraulic type, a pneumatic type, and a mechanical type can be used.

(Correction method)
To correct the bending of the outer tube 112 using the above-mentioned orthodontic appliance 1, the following operation may be performed.
As shown in FIG. 1, the jack 30 is attached to the central portion of the base material 10. The cord 20 is hung around the outer tube 112 and attached to both ends of the base material 10. At this time, a ring is formed by the cord 20 by attaching and detaching the mounting bracket 21, and the outer tube 112 is passed through the inside of the ring (see FIG. 2).

The jack 30 is extended and the support member 32 is pressed against the convex portion formed by the bending of the outer tube 112. Here, the convex side of the outer tube 112 is directed toward the jack 30. A force is applied to the outer tube 112 so that the jack 30 is further extended to widen the space between the base material 10 and the outer tube 112. By the above operation, the bending of the outer tube 112 can be corrected.

According to the orthodontic appliance 1 of the present embodiment, the cord 20 can be placed along the base material 10, and the jack 30 can be removed from the base material 10, so that the orthodontic appliance 1 can be stored compactly. Therefore, it is easy to carry to high places and narrow places.

[Second Embodiment]
Next, the orthodontic appliance 2 according to the second embodiment of the present invention will be described.
As shown in FIGS. 5 and 6, the orthodontic appliance 2 of the present embodiment has a configuration in which the orthodontic appliance 1 of the first embodiment is provided with a holding material 14 on the base material 10 instead of the receiving material 13.

The holding material 14 has three sides formed in a U-shaped cross section, and the edges of the three sides of the installation plate 31 are fitted. In order to attach the jack 30 to the base material 10, the installation plate 31 may be slid-fitted to the holding material 14. Since the installation plate 31 is slid-fitted to the holding material 14, the jack 30 does not tilt with respect to the base material 10 when correcting the bending of the outer tube 112, which is safe.

The holding material 14 may have only two opposing sides formed in a U-shaped cross section. Even in this case, the edges of the two opposite sides of the installation plate 31 are fitted into the holding material 14.

1, 2 Orthodontic appliances 10 Base material 11 Mounting hole 13 Receiving material 14 Holding material 20 Cable 21 Mounting bracket 30 Jack 31 Installation plate 32 Support material

Claims (3)

With a rod-shaped base material
A pair of cords attached to both ends of the base material and hung around a lance tube,
A jack that is detachably provided in the center of the base material and widens between the base material and the lance tube.
An installation plate provided at the bottom of the jack and
Orthodontic appliances of the provided in the center portion of the substrate, wherein the to Lula Nsu tube that comprises a receiving member having a recess in which the installation plate is fitted. With a rod-shaped base material
A pair of cords attached to both ends of the base material and hung around a lance tube,
A jack that is detachably provided in the center of the base material and widens between the base material and the lance tube.
An installation plate provided at the bottom of the jack and
Wherein it provided in the central portion of the substrate, orthotics features and to Lula Nsu tube by comprising a holding member in which the installation plate slides fitted. A method for straightening a lance tube, which comprises straightening the bending of the lance tube using the straightening device according to claim 1 or 2.

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