JP2849493B2 - Coke oven charging hole cleaning device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for cleaning a charging hole and a charging hole of a coke oven.

[0002]

2. Description of the Related Art When a screw cutter is inserted into a kiln from a charging hole of a coke oven and a scraper is brought into contact with a charging hole opening (a kiln opening) to clean the kiln and the kiln opening, the screw cutter and the kiln opening are preliminarily used. Alignment between the scraper and the charging hole was required (Japanese Patent Laid-Open No. 2-129291).

[0003] However, since the centering operation is performed by the centering device, it is necessary to provide a centering device. It is difficult to perform the process, and there is a problem that a wasteful switching time is required between the centering operation process and the cleaning operation process.

After the cleaning operation is completed, the above-mentioned centering position is maintained between the screw cutter and the machine frame, and since it is difficult to return the screw cutter to the original origin of the machine frame, the screw cutter is moved to the next charging hole. In such a case, since the screw cutter is not located at the origin, there is a problem that a positional error between the screw cutter and the next insertion hole is large and alignment is difficult.

[0005]

SUMMARY OF THE INVENTION According to the present invention, a cleaning operation and a centering operation of a kiln are performed without the need for a centering device, and no waste time is required between the two operations. It is an object of the present invention to obtain a coke oven charging hole cleaning device that can return the center line of the screw cutter and the scraper to the origin with the kiln cleaning screw cutter and the kiln mouth cleaning scraper raised after the inside cleaning is completed. .

[0006]

In order to achieve the above object, the present invention provides an upright guide rail which is slidably supported in the front-rear and left-right directions on a furnace top traveling machine frame, and which supports the upright guide vertically. And, the upper end of the kiln cleaning screw cutter is supported on an elevating frame that can be raised and lowered along the upright guide, and a kiln opening cleaning rotary scraper is provided at the lower end of the upright guide,
A coke oven charging hole cleaning device formed so as to perform cleaning and alignment of the kiln opening by rotation of the scraper. The coke oven insertion hole cleaning device according to the first aspect of the present invention, which is a reciprocating rotation. The first and second origin return tools having downward and upward tapered surfaces that abut against the machine frame and the upright guide. Alternatively, it is constituted by the coke oven charging hole cleaning device according to the third invention.

[0007]

In the present invention, the upright guide 3 is raised along the upright guide rail 2 and the lifting frame 4 is raised along the upright guide 3 so that the lower end of the in-kiln cleaning screw cutter 5 is located above the coke oven top surface 9. The furnace top traveling machine frame 1
Is moved to stop the screw cutter 5 immediately above the kiln opening 7 and the lid 10 of the kiln opening 7 is removed by the lid removing machine 11 (in this state, the kiln opening 7 and the screw cutter 5 are separated by the center line c, c 'does not match).

In this state, when the upright guide 3 is lowered along the upright guide rail 2 as shown in FIG. 3, the kiln cleaning rotary scraper 6 at the lower end of the guide 3 is rotated by the inner peripheral surface 7 ′ of the kiln 7. In contact with the eccentric state. In this state, when the rotary scraper 6 is rotated around one of the center lines c or reciprocally rotated, the scraper 6 scrapes off attached dirt such as tar on the inner peripheral surface 7 ′ and cleans the kiln opening 7. At the same time, the scraper 6 is rubbed with the inner peripheral surface 7 'so that the center line c of the scraper 6 and the center line c' of the kiln opening 7 are aligned and aligned.

That is, the scraper 6 rotates in one direction or reciprocating around the center line c, and the weight of the upright guide 3, the lifting frame 4, and the screw cutter 5 for cleaning the inside of the kiln passes through the rotary scraper 6, and The downward tapered blade 6 'of the scraper 6 is rubbed against the upwardly tapered inner peripheral surface 7' of the kiln opening 7 so as to hang on the inner peripheral surface 7 'and slightly moves back and forth, right and left, and accordingly, the upright guide rail. 2 moves slightly on the machine frame 1 so that the center line c of the rail 2, the upright guide 3, the lifting frame 4, the screw cutter 5 and the scraper 6 is aligned with the center line c 'of the kiln opening 7. You.

That is, it is possible to perform the alignment work simultaneously with the cleaning operation of the inner peripheral surface 7 ′ of the kiln opening 7 by the scraper 6, and furthermore, the lifting frame 4 is lowered during the cleaning operation and the screw cutter 5 is moved. From the kiln opening 7 into the kiln 12 and at the same time or immediately after the completion of the cleaning operation,
Cleaning of the kiln 12 can be started.

After the cleaning by the rotary scraper 6 and the screw cutter 5 is completed, the lifting frame 4 and the upright guide 3
Is raised, the upright guide rail 2 is brought into contact with the upwardly tapered surface 8 ″ of the return-to-origin tool 8 provided on the upright guide 3 against the downwardly tapered surface 8 ′ of the return-to-origin tool 8 provided on the machine frame 1. The screw cutter 5 and the scraper 6 also return to the origin via the upright guide 3 and the elevating frame 4 by sliding slightly back and forth and left and right, and the machine frame 1 is moved in that state. The operation of stopping on the next kiln opening 7 is repeated.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A traveling machine frame 1 such as a coal truck is provided on a rail laid on a furnace top surface 9 of a coke oven. The machine frame 1 is provided with four support devices 13 that can move horizontally in the front-rear and left-right directions through a blast air layer, and supports the horizontal arm 14 provided above the upright guide rail 2 on the support devices 13. .

As shown in FIG. 4, the upper portions of the upright guide rails 2 are provided with sliding plates 16, 1 via parallel links 15, 15.
The guide rail 2 can be slid in the front-rear and left-right directions by inserting a fixing pin 18 into a long hole 17 formed in each of the sliding plates 16, 16. Horizontal rotation is suppressed.

In the upright guide rail 2, guide wheels 3 ',
The upright guide 3 is supported by a cylinder 19 via a 3 'so as to be able to move up and down. The elevating frame 4 is supported by a cylinder 20 via a guide roller 4' and 4 'so as to be able to move up and down. . A hydraulic motor 21 is provided inside the elevating frame 4, and the upper end of the kiln cleaning screw cutter 5 is connected to the motor 21.

At the lower end of the upright guide 3, an outer peripheral grooved hollow ring 22 rotatable around a center line c is supported, a pin rack 23 is provided in the outer peripheral groove, and a gear 24 meshing with the pin rack 23 is provided. The gear 24 is driven in one direction or reciprocating rotation by a one-way or reciprocating rotary hydraulic motor 25 provided outside the upright guide 3, whereby the hollow ring 22 can be rotated in one direction or reciprocating. Is provided with a rotary scraper 6 for cleaning a mouth opening which has four downward tapered blades 6 'and can be rotated in one direction or reciprocally.

A furnace opening 7 (a charging hole opening) is opened on the furnace top surface 9, an upward tapered inner peripheral surface 7 ′ is formed on the opening edge, and the furnace opening 7 is closed by a lid 10 having a downward tapered outer peripheral surface. Picking device 1
1, the upwardly tapered inner peripheral surface 7 'and the downwardly tapered blade 6' of the scraper 6 can coincide with each other at the same taper angle.

The downward tapered blade 6 'of the rotary scraper 6 is provided on the upwardly tapered inner peripheral surface 7' of the kiln opening 7 from which the lid 10 is removed.
, And is rotated about the center line c, and the downward tapered blade 6 ′ that rotates by applying a load by the guide rail 2, the upright guide 3, the lifting frame 4, the screw cutter 5, etc. Rotating along the peripheral surface 7 ′, the center line c coincides with the center line c ′ of the kiln opening 7, and the centering operation and the cleaning operation for removing dirt such as tar adhered to the inner peripheral surface 7 ′. Can be performed simultaneously, and during both operations, the lifting frame 4 is lowered, and the screw cutter 5 is
2 and immediately after the completion of both operations, the process proceeds to the kiln cleaning operation with the screw cutter 5.

The traveling machine frame 1 and the upright guide 3 are provided with return-to-origin members 8 and 8 having downward and upward tapered surfaces 8 'and 8 ", respectively, which abut each other. 8,
Reference numeral 8 denotes a semicircular downward tapered surface 8 ', 8' on the machine frame 1 side.
Are formed facing each other, and the arms 26, 26 are provided on the upright guide 3 side.
It is preferable that the arms 26, 26 be formed in a pin shape having upwardly tapered surfaces 8 ", 8" at the tips of the truncated cones.

[0019]

Since the present invention is constructed as described above, the cleaning operation of the kiln opening 7 by the rotary scraper 6 for cleaning the kiln opening and the aligning operation can be performed almost simultaneously, and the kiln cleaning by the screw cutter 5 for cleaning the kiln inside the kiln. There is an effect that the cleaning operation can be quickly performed immediately after the kiln opening cleaning operation and the centering operation. Further, after both the cleaning operations, the scraper 6 and the cutter 5 can be returned to the original point only by raising the scraper 6 and the screw cutter 5 on the furnace top surface 9.

[Brief description of the drawings]

FIG. 1 is a front view showing a coke oven charging hole cleaning device of the present invention.

FIG. 2 is an enlarged plan view taken along the line AA of FIG. 1;

FIG. 3 is a right side view of FIG. 1;

FIG. 4 is a plan view of FIG. 1;

[Explanation of symbols]

 Reference Signs List 1 Furnace traveling machine frame 2 Upright guide rail 3 Upright guide 4 Lifting frame 5 Kiln cleaning screw cutter 6 Kiln opening rotary scraper 7 Kiln 8 Origin return tool 8 'Downward tapered surface 8 "Upward tapered surface

Claims (4)

(57) [Claims] An upright guide rail slidably supported in the front-rear and left-right directions is provided on the furnace top traveling machine frame, and the upright guide is supported on the rail so as to be able to move up and down, and the elevating frame can be moved up and down along the upright guide. Support the upper end of the screw cutter for kiln cleaning,
A coke oven charging hole cleaning device, wherein a rotary scraper for cleaning the kiln opening is provided at a lower end of the upright guide, and the kiln opening is cleaned and aligned by rotation of the scraper. 2. The coke oven insertion hole cleaning device according to claim 1, wherein the rotation of the scraper is one-way rotation. 3. The apparatus for cleaning a coke oven insertion hole according to claim 1, wherein the rotation of the scraper is a reciprocating rotation. 4. The coke according to claim 1, further comprising a return-to-origin tool having downward and upward tapered surfaces which abut against the machine frame and the upright guide. Furnace charging hole cleaning device.