JPH0299591A - Apparatus for mending coke oven by melt spraying - Google Patents

Abstract

PURPOSE:To surely and freely perform the forward and backward motion of a long boom and the inclination of the boom to a prescribed angle by placing a hydraulic cylinder under a boom-supporting frame and providing a pinion and a driving apparatus for the forward and backward driving of the boom above the supporting frame. CONSTITUTION:A hydraulic cylinder 10 for inclining a boom 1 in upper or lower direction is attached to the lower end 9 of a supporting frame supporting the whole weight of the boom 1. A pinion 6 for the forward and backward driving of the boom 1 and a driving apparatus for the pinion are placed above said supporting frame. A rack 2 is fixed on the upper surface of the boom 1 and the boom 1 is supported by a pair of front and rear guide rollers 7 to construct the objective melt-spray mending apparatus for a coke oven.

Description

DETAILED DESCRIPTION OF THE INVENTION Object of the Invention (Field of Industrial Application) The present invention relates to a repair device for a carbonization chamber in a coke oven.

(Prior art) As a furnace for producing metallurgical coke, a chamber furnace for producing coke is capable of mass production, is easy to carry out quality control, and is relatively effective in using a huge amount of heat. It has been widely adopted because it is widely used.

However, since coal carbonization is indirect heating through the side walls of brickwork, long-term use may cause coke to fuse with the bricks, collapse of the brickwork side walls, or damage the side walls when taken out of the kiln. Therefore, the normal lifespan is said to be about 20 years.

Since reloading bricks into a coke oven requires a huge amount of money and time, many proposals have been made for hot repair methods for coke ovens, and these are being put into practical use, albeit on a small scale.

For example, a thermal spray burner is provided at one end of a water-cooled long cylinder into which a supply pipe for combustible gas, oxygen, and refractory powder is inserted, and an operating handle is provided at the other end, so that the aforementioned water-cooled long cylinder can be freely moved to a support frame. Utility Model No. 52-36703, in which the burner for repair was mounted on a movable trolley so that it could be tilted and rotated freely, the repair burner was removably attached to the coke guide car or pusher car, and the burner could be moved forward and backward, rotated, and tilted. JP-A-53-82802 is a flexible cassette type thermal spray repair machine, characterized by a powder spray nozzle installed on one side of the trolley so that it can move up and down, and a heat source gas cylinder, powder hopper, etc. installed on the other side. Utility Model Application No. 53-86455, a thermal spray burner was mounted on a trolley so that it could be raised and lowered and moved forward and backward, and the thermal spray burner was suspended and supported by a check 7 through a hoisting machine from a coal charging hole at the top of the furnace. Utility Model No. 61-159345 is known.

(Problems to be Solved by the Invention) As mentioned above, the hot repair equipment for the coke oven carbonization chamber that has been implemented in the past has been repaired manually by the operator while visually checking the area within 1 to 2 m from the kiln mouth. In most cases, the boom is inserted into the center of the furnace, and a device that repairs a wide area accurately and efficiently after confirming the location to be repaired, especially an efficient forward and backward movement mechanism for the boom. has not yet been developed.

The present invention was created in view of the current situation, and
In particular, it is an object of the present invention to provide a device suitable for supporting a long boom while moving it forward, backward, or tilting it.

"Structure of the Invention" (Means for Solving the Problem) In order to achieve the above-mentioned object, the present inventors made the boom tilt in the vertical direction below the support frame that supports the entire weight of the boom. A hydraulic cylinder is provided for the movement of the boom, a binion for moving the boom forward and backward and its drive mechanism are provided on the upper side of the support frame, a rank is fixed to the top surface of the boom, and the boom is supported by a pair of guide rollers in the front and rear. We propose a thermal spraying repair device for coke ovens, which is characterized by having a bearing. With the device of the present invention, a long boom can be moved back and forth or tilted to a predetermined angle accurately and freely.

(Function) The present invention relates to a thermal spray repair apparatus for a coke oven carbonization chamber, and particularly relates to a mechanism for smoothly moving a long boom back and forth or tilting it.

The present invention is characterized in that a hydraulic cylinder for changing the inclination angle of the boom is provided below the support frame of the boom, and a pinion for moving the boom forward and backward and its drive mechanism is provided above the support frame. The reason is that a guide roller that corresponds to the shape of the boom was used.

In particular, in the present invention, since a long boom is used, the cross section of the boom has an arcuate upper and lower section and a vertically elongated shape. Since the guide rollers are also excellent in H, a pair of guide rollers were used at the front and rear. However, since the rack is formed on the upper surface of the boom, it is necessary to avoid contact between the upper guide roller and the rack.In the present invention, by using a special roller whose tip is divided into two, It allows for smooth forward and backward movement.

The support frame of the boom in the present invention refers to a metal frame that attaches the boom to a truck so that it can move forward and backward, and one end of the hydraulic cylinder that tilts the boom is pivoted to the bottom of this support frame. The binion for moving the foot back and forth and its drive device are fixed to the upper side of the support frame.

The structure of the trolley on which the entire apparatus is mounted, the thermal spray burner at the tip of the boom, and the surveillance camera will be omitted.

(Example) FIG. 1 is a plan view showing the main parts of the apparatus of the present invention. A rack 2 is fixedly installed on the top surface of the water-cooled boom 1, which supplies repair materials for repairing coke ovens to the burner at the tip, over almost the entire length of the boom. has been done. This boom is moved forward and backward by the above-mentioned rack 2 meshing with a spur gear 5 driven by a hydraulic motor 4 provided on a support frame 3 and a coaxial pinion 6. A pair of guide rollers 7 at the front and rear are used to move the boom forward and backward. FIG. 2 is a side view showing the main parts of the present invention, in which one end of a hydraulic cylinder 10 is fixed to the lower side 9 of a support frame that supports a boom placed on a pedestal 8 of a truck, and the other end is fixed. The boom was fixed to a dolly, allowing the angle of inclination of the boom to be changed at will. 11 is its tilting axis.

FIG. 3 shows a sectional view taken along the line A-A in FIG. 2, and shows that the upper guide roll is divided into two at the tip so as not to interfere with the movement of the rack. The inside of the boom 1 is provided with a water cooling pipe 12 at the top and bottom, a compressed air pipe 13 for cooling, and a main pipe 14 in which a pipe for sending thermal spraying material, oxygen, etc. to the burner section at the tip and a cable for a surveillance camera are arranged. ing.

With the above-described device of the present invention, it is possible to position the tip of the boom at a position inside the furnace that can be raised or lowered outside the kiln without putting the support part of the long boom into the furnace, making it easy to carry out repair work. It can be carried out.

"Effects of the Invention" As described in detail above, in the case of the device of the present invention, a hydraulic cylinder for tilting the boom in the vertical direction is provided at the lower part of the support frame that supports the entire weight of the boom. A pinion and its drive mechanism for moving the boom forward and backward are installed on the top of the frame, and a rank is fixed on the top of the boom, so it is possible to move forward and backward or stop when tilting in an extremely short time and accurately. This enabled quasi-linear movement in the height and depth directions of the coke oven.

[Brief explanation of drawings]

FIG. 1 is a plan view showing essential parts of the apparatus of the present invention, FIG. 2 is a side view thereof, and FIG. 3 is a cross-sectional view taken along line AA in FIG. 2. 1: Boom 2 Niratsuku

Claims (1)

[Claims] A hydraulic cylinder for vertically tilting the boom is provided below the support frame that supports the entire weight of the boom, and a pinion for moving the boom forward and backward is provided above the support frame. 1. A thermal spray repair apparatus for a coke oven, characterized in that a rack is fixed to the upper surface of the boom, and the boom is supported by a pair of guide rollers at the front and rear. Device.