JPH07158252A - Lining spraying device - Google Patents

Abstract

PURPOSE:To ensure smooth oscillation of a nozzle and to prevent a hose connecting part from being damaged. CONSTITUTION:A support frame 20 is provided below the floor 2 of a gondola, and four guide rods 23 are turned in association with the operation of a rotary drive part 14. A boss part 24 is moved up and down along the guide rods 23 in association with the operation of an elevating drive part 21. Nozzle attaching beds 27, 28 are provided to the boss part 24, being faced in vertically opposite directions, and are attached thereto with spraying nozzles 30, 31, respectively. Lining material supply hoses 32, 33 are led outside, passing between the four guide rods 23, and are connected to the nozzles 30, 31, respectively.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lining spraying device for chimney barrels and the like, and more particularly to a lining spraying device which avoids interference of a spraying lining material supply hose.

[0002]

2. Description of the Related Art FIG. 4 shows an example of a conventional device used for lining the inner surface of a chimney tube body or the like. As shown in FIG. 4, the gondola 1 includes a floor 2, columns 3, an upper beam 4, and a control room 5 on the floor. The hoisting rope 6 suspends and supports the gondola 1 in the barrel so that the hoisting rope 6 can be lifted and lowered. The guide roller 7 is provided around the floor 2 and the upper beam 4, and engages with the inner wall of the barrel. The column 8 is provided at the center of the floor 2 of the gondola 1 so as to project downward, and is rotatable. The boss portion 9 is provided so as to be vertically movable along the column 8 via a driving means. The beam 10 for attaching the nozzle is provided symmetrically to the boss portion 9. The pair of lining spray nozzles 11 is a beam 10
They are arranged symmetrically above. The lining material supply hose 12 is connected to the spray nozzle 11. The power cable 13 is connected to the inside of the control room 5 from above.

FIG. 5 is an enlarged side view of the spraying device below the gondola 1. Reference numeral 14 is a swivel drive unit for the column 8 arranged on the lower surface of the floor 2, and 15 is a lift drive unit for the boss 9. Further, 50 is a barrel.

The spray nozzle 11 has a tubular body 5 on both sides of the beam 10.
0 is symmetrically arranged toward the inner wall surface, and the lining material is sprayed and sprayed onto the wall surface while being swung by the motor 11a while being rotated by the rotation drive unit 14 for a half turn at a constant height position. Next, the lifting drive unit 15 is used to move the boss 9 by a predetermined distance.
When the spray nozzle 11 is moved downward, the spraying nozzle 11 is rotated halfway in the opposite direction, and the lining spraying work is performed in the same manner as the spraying of the lining material.

[0005]

As shown in FIG. 5, when the diameter of the chimney barrel 50 is relatively small, the spraying device is provided with the beam 10.
It is necessary to install the spray nozzle 11 with a short length. In the conventional apparatus, in this state, the lining material supply hose 12 connected to the spray nozzle 11 interferes with the column 8 so that it is difficult to avoid the lining material supply hose 12 from the side portion of the column 8. For this reason, a bending force is applied to the connecting portion between the hose 12 and the spray nozzle 11, which causes a resistance to the swinging motion of the nozzle, which hinders the smooth swinging motion of the nozzle 11 and reduces the accuracy of the lining spraying work. In addition, there is a problem that the connection portion of the hose 12 is damaged and the work is interrupted.

In order to solve the above-mentioned conventional problems, it is an object of the present invention to eliminate the interference between the hose 12 and the column 8 so that the lining spraying work can be carried out smoothly.

[0007]

In order to achieve this object, according to the present invention, a plurality of gondolas hung and supported inside a tubular body such as a barrel so as to be lifted up and down are provided so as to project downward. A pivotable support frame having guide rod elements, and a boss portion that vertically engages with a plurality of guide rod elements of the support frame and moves up and down via a drive means.
Nozzle mounts provided on opposite sides of the boss portion with or without beam blocks and having a gradient in the radial direction, and jetting the same wall surface height on the nozzle mount bases symmetrically with respect to the support frame. As a target point, lining spray nozzles provided in reverse to each other are provided.

[0008]

The pair of spray nozzles mounted on the boss portion without a beam block for lining a relatively small-diameter cylindrical body has a lining material hose connected to the nozzle portion and a plurality of guide rods on the support frame. Can be guided between the elements from within the support frame to both outer sides of the support frame,
The hose bending force is not applied to the connection between the hose and the nozzle. Further, since the pair of spray nozzles on both sides of the boss are provided at different heights and the wall surface having the same height is sprayed by the lining, the lining material supply hoses of the spray nozzles do not interfere with each other in the support frame. .

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the embodiments shown in FIGS. In FIG. 1, the turning drive unit 14
Is provided on the underside of the gondola floor 2. The support frame 20 has a box-shaped lifting drive unit 21 whose upper end is engaged with the turning drive unit 14 and is rotatably supported, and extends downward in parallel from the four corners of the lifting drive unit 21 and has a rectangular connecting plate at the lower end. It is composed of four guide rods 23 which are fixedly coupled to 22.
The boss portion 24 is a lifting drive chain 25 of the lifting drive portion 21.
Is supported by the linear guide 26 on each guide rod 23.
Engage and move up and down. The nozzle mounting base 27 axially supports the lower surface of the nozzle mounting base 27 on the upper end edge of the boss portion 24, and the nozzle mounting base 28 axially supports the upper surface of the nozzle mounting base 27 on the lower end edge of the boss portion 24, so that the tip ends of the nozzle mounting bases 27, 28 are supported. A bracket member 29 such as a turnbuckle whose length can be adjusted is installed upside down with a predetermined inclination. The pair of spray nozzles 30 and 31 are fixed to the upper and lower surfaces of the nozzle mounts 27 and 28 and are installed upside down. The lining material supply hoses 32 and 33 are connected to the rear ends of the spray nozzles 30 and 31 and lead to the floor 2.

As shown in FIG. 2, the pair of spray nozzles 30 and 31 are provided so as to be deflected by a fixed angle in the clockwise direction from the axis of the support frame 20, and the nozzle mounts 27 and 27 are provided so that the same wall height is set as the injection target point. 28 inclinations are provided to be adjusted. The lining material supply hoses 32 and 33 connected to the spray nozzles 30 and 31 pass through the plurality of guide rods 23 of the support frame 20 and the support frame 20 respectively.
To the other side of the gondola and connect to the ground via the floor 2 of the gondola.

The lining material supply hoses 32 and 33 can take appropriate intermediate supports (not shown) from the nozzle mounts 27 and 28 by belts or the like.

With this configuration, the lining material supply hoses 32 and 33 are held in a gentle bend without giving a bending force to the spray nozzles 30 and 31. And spray nozzle 3
0 and 31 are driven by the motors 30a and 31a to smoothly swing and rotate without any other resistance, in parallel with the forward and reverse half-turns of the support frame 20 and the lowering of the boss portion 24 or the lowering of the gondola. The lining material can be sprayed and sprayed onto the inner wall surface of the barrel.

FIG. 3 shows that when the spraying device is used for a cylindrical body having a large diameter, the nozzle spraying bases 27 and 28 are mounted on the boss portion 24 via one beam block 35, and the nozzle mounting base 27, 28 is attached. The case where the spray nozzles 30 and 31 are mounted on the 28 is shown. By increasing the number of beam blocks 35, it is possible to set the spray nozzles 30 and 31 to the required facing distance from the wall surface of the cylinder body according to the large-diameter cylinder body. Further, when such spray nozzles 30 and 31 are separated from the support frame 20, the lining material supply hoses 32 and 33 do not pass between the guide rods 23 of the support frame 20, and the spray nozzles 30 and 31 do not support the support frame 20. It is possible to lead directly to the outer side of the.

According to the above configuration, when the pair of spray nozzles are symmetrically provided on the boss portion at a distance close to each other,
Interference between the conventional lining material supply hose and the column pillar,
As a result, problems such as poor swinging accuracy of the spray nozzle, deterioration of the lining quality and accuracy, etc. are resolved, and the lining spraying work can be carried out smoothly.

[0015]

As is apparent from the above description, the present invention is composed of a plurality of guide rod elements which are provided so as to project downward at the center of the floor of a gondola which is hung and supported in the interior of a tubular body or the like. A pivotable support frame, a boss that vertically engages with a plurality of guide rod elements of the support frame and moves up and down via a driving means, and a boss on both sides of the boss with or without a beam block. In addition, the nozzle mounting base is installed upside down and has a gradient in the radial direction, and the lining spray nozzles are installed upside down with the same wall height as the injection target point symmetrically arranged with respect to the support frame on the nozzle mounting base. As a result, when the spray nozzles are placed close to each other on both sides of the boss, the lining material supply hose at the rear of the spray nozzle interferes with the column-shaped support column. Eliminating the adverse effects such as reduction in impact and lining accuracy to swing rotation of the spray nozzle, always smoothly the oscillating rotation without applying a bending force to the spray nozzle,
This is extremely beneficial because it has the effect of enabling accurate lining injection spraying.

[Brief description of drawings]

FIG. 1 is a side view showing a lining spraying device according to an embodiment of the present invention.

FIG. 2 is a plan view taken along line II-II in FIG.

FIG. 3 is a partial side view showing another embodiment of the present invention.

FIG. 4 is a perspective view showing a gondola equipped with a conventional lining spraying device.

5 is a side view taken along line VV of FIG.

[Explanation of symbols]

 1 Gondola 2 Floor of Gondola 14 Revolving drive part 20 Support frame 21 Elevating drive part 22 Coupling plate 23 Multiple guide rods 24 Boss part 25 Elevating drive chain 26 Linear guide 27, 28 Nozzle mount 29 Bracket member 30, 31 Spray nozzle 30a, 31b Swing motor 32, 33 Lining supply hose 35 Beam block 50 Tube body

Claims (1)

[Claims] 1. A support frame, which is provided so as to project downward at the center of the floor of a gondola suspended up and down in a cylindrical body and has a plurality of guide rod elements, and which is rotatable, and a support frame of the support frame. A boss portion that vertically engages with a plurality of guide rod elements and that moves up and down via a drive means, and a radiating direction that is provided upside down on both sides of the boss portion with or without a beam block. It is characterized in that a nozzle mounting base having a slope is provided, and a lining spray nozzle is provided on the nozzle mounting base, which are symmetrically arranged with respect to the support frame and have the same wall surface height as the injection target point and are installed upside down. Lining spray device.