JPH06293884A - Vertical coke oven lid opening and closing device - Google Patents

Abstract

(57) [Summary] [Purpose] A furnace lid that does not require bedding powder coke and has a thick insulating material applied to the inner surface. [Structure] Thick heat insulating material attached to the kiln opening of a vertical coke oven 2 Bars 3 lined with a lock, and an opening / closing device for a lock-type furnace lid 1, the upper end side of a coke fire extinguisher 30 that can be moved below the vertical coke oven A support frame 27 for tiltably supporting the furnace lid opening / closing device main body 11 including a furnace lid grasping mechanism and a barb opening / closing mechanism is provided at both ends of the fire extinguisher 30 in the longitudinal direction.
An elevating mechanism 29 for elevating and lowering along the L-shaped guide groove 32 provided in 1 and a moving mechanism for horizontally moving are provided. [Effect] It is possible to install and remove the furnace lid on which a thick heat insulating material is applied, eliminate the flooring of powder coke, and significantly reduce the operating cost and equipment cost.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for opening and closing a furnace lid which is attached to a kiln for discharging coke under a carbonization chamber of a vertical coke oven by its own weight.

[0002]

2. Description of the Related Art In a vertical coke oven, normal wet coal is charged from the upper part of the carbonization chamber and coke is discharged from the lower part of the carbonization chamber by its own weight. Since it has few openings, it has a soot and dust suppression effect. The vertical lid of the vertical coke oven must be opened 90 ° or more so that the coke can freely fall into the fire engine due to its own weight. Therefore, the vertical lid of the vertical coke oven is
Generally, the shaft that serves as a fulcrum for opening and closing the furnace lid is fixed to the bottom of the furnace, and the shaft that serves as the starting point for opening and closing the furnace lid on the opposite side is also fixed to the coke oven main body with a pin or bar.

As a device for operating the furnace lid of such a vertical coke oven, a special supporting device for the furnace lid of the vertical coke oven is shown in DE 714704, and the opening angle of the furnace lid is shown. Is greater than 90 °. For this purpose, the rotary shaft of the furnace lid is movable in the longitudinal guide. It is stated that the furnace lid can be opened by the action of gravity or that known rotating devices can be used. In addition, it has a coke fire extinguisher that can move under the furnace lid,
A pneumatic or hydraulic operating cylinder is provided, and the piston rod of this operating cylinder allows the furnace lid to swing around the axis of rotation.The operating cylinder is parallel to the coke fire extinguisher and the axis of rotation of the furnace lid. It is supported so that it can swing around various axes, and the control cylinder acts on the operating cylinder.
A device (Japanese Patent Laid-Open No. 56-133385) has been proposed in which the control cylinder allows the operating cylinder to swing about an axis parallel to the rotary axis of the furnace lid.

[0004]

The furnace lid of the vertical coke oven is required to be thin and lightweight because of the mechanism for opening and closing the furnace lid. However, the furnace lid alone does not provide sufficient heat insulation at the kiln opening, and normally coke powder is used as a heat insulating material to avoid delaying dry distillation at the bottom of the furnace. Generally, since the powder coke is filled up to near the height position of the bottom of the heating flue at the lowermost part, the floor spread height of the powder coke is 300 to 400 mm. However, this method of bedding the powdered coke uses two types of coke and coal:
It becomes a series, and the equipment and operation such as raw material transportation, storage and charging become complicated, not only the cost increases, but also the reheating of the bedding powder coke and the unit heat quantity deteriorate, and the product coke and floor It has a drawback that the amount of sieving coke sieving increases and the operating cost becomes high. Therefore, there is a demand for a method in which no powder coke is laid on the floor during operation.

The object of the present invention is to provide a heat insulation method for the kiln opening in a vertical type coke oven, which does not require bedding powder coke and has a long operating experience in a room oven type coke oven. It is an object of the present invention to provide a furnace lid opening / closing device for a vertical coke oven, which can be a barbed lock type furnace lid in which a heat insulating material such as a thick heat insulating brick and a heat insulating caster is confirmed on the inside.

[0006]

Means for Solving the Problems The inventors of the present invention have conducted various tests and examinations in order to achieve the above object. As a result, a furnace lid opening / closing device was installed on the upper end side of the fire engine, the furnace lid was grasped by the grasping mechanism of the furnace lid opening / closing device, and the bar spring of the furnace lid was pressed and released, then the bar was rotated. The furnace lid opening / closing device is vertically lowered along the guide groove until the furnace lid is released from the kiln opening, and then moved horizontally to open the furnace lid. The inventors have come to the conclusion that they can be mounted by performing the reverse operation, and have reached the present invention.

That is, according to the present invention, in the opening and closing device for the lock-lock type furnace lid, which is installed in the kiln port of the vertical type coke oven and is lined with a thick heat insulating material, the upper end of the coke fire extinguisher which can be moved under the vertical type coke oven A support frame for tiltingly supporting the main body of the furnace lid opening / closing device, which is composed of a furnace lid grasping mechanism and a barb opening / closing mechanism, is provided in L-shaped guide grooves provided on guide plates provided at both longitudinal ends of the fire engine. A furnace lid opening / closing device for a vertical coke oven, which is provided with an elevating mechanism for vertically elevating and a moving mechanism for horizontally moving.

Further, the furnace lid grasping mechanism is composed of right and left hooks slid by the operating cylinder, and one of the two lug pieces provided on the bar lock type furnace lid is gripped by the right hook and the other by the left hook. To do. Further, the L-shaped guide grooves provided on the guide plates provided at both longitudinal ends of the fire engine have vertical upper portions and horizontal lower portions, and are provided at both ends of a support frame that tiltably supports the furnace lid opening / closing device body. The wheel fits in the guide groove.

[0009]

In the furnace lid opening / closing device of the present invention, guide plates having L-shaped guide grooves are provided at both longitudinal ends of a coke fire extinguisher capable of traveling below a vertical coke oven, and the L-shaped guide grooves are provided in the guide plates. A vertical mechanism is used to open the furnace lid when the lid is opened, because an elevating mechanism that raises and lowers a support frame that tiltably supports the main body of the furnace lid opening and closing mechanism that is composed of a furnace lid grasping mechanism and a barb opening and closing mechanism and a moving mechanism that horizontally moves After moving the coke fire extinguisher under the coke oven and operating the moving mechanism and the elevating mechanism to raise the support frame supporting the furnace lid opening / closing device body along the guide groove, operate the furnace lid grasping mechanism. Grasp the furnace lid, then operate the bar opening / closing mechanism to press and release the bar bar spring, rotate the bar, and then operate the lifting mechanism to support the furnace lid opening / closing device body in an L-shape. Move down along the guide groove, then move mechanism By tilting the main body of the furnace lid opening / closing device while operating it to move the support frame horizontally, the furnace lid can be opened without damaging the thick lining thermal insulation material, and the open furnace lid Since it is tilted by moving it from directly below the kiln to the side, the red-hot coke can be smoothly dropped into the fire extinguisher. When the furnace lid is attached, the furnace lid can be attached by performing the reverse operation to the above.

Further, according to the present invention, the furnace lid grasping mechanism is composed of rightward and leftward hooks slidable by the operating cylinder, and one of the two lug pieces provided on the barn lock type furnace lid is a rightward hook and the other is a rightward hook. Since it is grasped by the leftward hook, the furnace lid can be firmly grasped, and the furnace lid can be prevented from falling off. Further, L-shaped guide grooves provided in guide plates provided at both ends in the longitudinal direction of the fire engine have vertical upper portions and lower portions have L-shaped guide grooves provided at both ends of a support frame for supporting the main body of the furnace lid opening / closing device. Since it fits in the groove, when the support frame that holds the furnace lid grasping the furnace lid is lowered along the guide groove, the furnace lid separates from the kiln and then along the lower horizontal part. Since the support frame that supports the furnace lid opening / closing device main body is tilted while moving in the horizontal direction, the coke falling from the carbonization chamber moves laterally and hits the tilted furnace lid and falls into the fire engine.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the present invention will be described below with reference to FIGS. 1 is a side sectional view showing a state in which a furnace lid is held by the furnace lid opening / closing device of the present invention, and FIG.
5 is a plan view of the furnace lid opening / closing device, FIG. 3 is a view taken along the line AA of FIG. 1, FIG. 4 is a side sectional view of the furnace lid attached to the vertical coke oven, and FIG.
[Fig. 3] is a bottom view of a furnace lid attached to a vertical coke oven. In FIGS. 1 to 5, 1 is a furnace lid with a heat-insulating castable 2 lined therein, 3 is a bar of the furnace lid 1, and 3 is a bar-locking member 5 provided at a kiln port of a carbonization chamber 4 of a vertical coke oven. The knife edge 7 that is locked and attached around the furnace lid 1 by the barb spring 6 is pressed against the kiln opening frame 8 around the kiln opening of the carbonization chamber 4 to seal it. Reference numeral 9 denotes a lug piece grasped by rightward and leftward hooks of a furnace lid grasping mechanism provided between the barbs 3 and 3 of the furnace lid 1, and 10 is a connecting rod for connecting the barbs 3 and 3.

Reference numeral 11 denotes a furnace lid opening / closing device body, which is a cylinder 1.
The furnace lid grasping mechanism consisting of right and left hooks 16 and 17 that slide horizontally along the slide grooves 14 and 15 by the operation of 2 and 13, and the bar 3 of the furnace lid 1 are pressed to release the bar springs 6. Spring pushing cylinders 18 and 19, bartacking members 20 and 21 that rotate the barbs 3 and 3 of the furnace lid 1, a connecting rod 22 and bartacking member 20 that connect the bartacking members 20 and 21, The barb opening / closing mechanism is composed of a cylinder 24 that rotates 21 with a spindle (not shown) as a fulcrum. In addition, the furnace lid opening / closing device body 11 includes
Stoppers 26 are provided on both sides for abutting against. Two
Reference numeral 7 denotes a support frame that pivotally supports the furnace lid opening / closing apparatus main body 11 so that the furnace lid opening / closing apparatus main body 11 can be tilted.
Is tilted. 29 is an elevating mechanism for the support frame 27, which supports the support frame 2
A wheel 33 fitted into an L-shaped guide groove 32 of a guide plate 31 provided at the upper end in the longitudinal direction of a fire engine 30 provided at both ends of 7.
And a power cylinder 34 for raising and lowering the support frame 27 provided in the fire extinguisher 30. By operating the power cylinder 34, the support frame 27 moves up and down along the vertical portion of the L-shaped guide groove 30. Reference numeral 35 denotes a moving mechanism of the support frame 27, and wheels 36 provided at both ends of the elevating mechanism 29 have horizontal guide frames 37.
And the wheel 33 of the support frame 27 is fitted to the L-shaped guide groove 32.
When the cylinder 38 is operated at the lower end position of the vertical portion, the support frame 27 is horizontally moved laterally along the horizontal guide frame 37.

With the right and left hooks 16 and 17 sliding horizontally along the slide grooves 14 and 15 by the operation of the cylinders 12 and 13 of the furnace lid grasping mechanism, the lug pieces 9 and 9 of the furnace lid 1 are grasped. When the wheels 33 provided at both ends of the support frame 27 that supports the furnace lid opening / closing device main body 11 are located at the lower ends of the vertical portions, the furnace lid 1 separates from the kiln and is positioned below, and then the wheels 33 are horizontally guided by the horizontal guide frame. When horizontally moved along 37, the support frame 27 that supports the furnace lid opening / closing device main body 11
Moves to the side. Further, when the furnace lid opening / closing device main body 11 is tilted by operating the cylinder 28, the furnace lid 1 in which the lug pieces 9 and 9 are grasped by the hooks 16 and 17 is tilted accordingly. Note that 39 is red hot coke.

With the above construction, when the furnace lid 1 of the vertical coke oven is removed and the red hot coke 39 in the carbonization chamber 4 is discharged, the fire extinguisher 30 is brought to a predetermined fixed position below the carbonization chamber 4. After traveling, the power cylinder 34 is operated to raise the support frame 27 supporting the furnace lid opening / closing device body 11 along the vertical portion of the L-shaped guide groove 32. Then, the stopper 2 of the furnace lid opening / closing device main body 11
6 abuts on the metal body 25 of the furnace lid 1 attached to the bottom kiln of the carbonization chamber 4. In this state, the rightward and leftward hooks 16 and 17 of the furnace lid grasping mechanism are moving in directions away from each other, and the bar engaging members 20 and 21 engage with the barbs 3 and 3 of the furnace lid 1. . Then, when the cylinders 12 and 13 of the furnace lid grasping mechanism of the furnace lid opening / closing device body 11 are operated, the hooks 16 and 17 facing right and left move in the direction of approaching along the slide grooves 14 and 15, and Rug piece 9,
Figure out 9 respectively. Next, spring-loaded cylinder 1
Operate 8 and 19 to press the bar 3 and 3 and press the bar spring 6
After the lock is released, the cylinder 24 is operated to rotate the bartack engaging members 20 and 21 about a support shaft (not shown) as a fulcrum, whereby the barbs 3 and 3 are rotated by the bartack engaging members 20 and 21. After detaching from the locking members 5 and 5, the furnace lid 1 is gripped by the furnace lid opening / closing device body 11.

Then, the power cylinder 34 is operated in the opposite manner to lower the support frame 27 for supporting the furnace lid opening / closing device main body 11 along the L-shaped guide groove 32, so that the furnace lid opening / closing device main body 11 is gripped. In the furnace lid 1, the wheels 33 are completely separated from the kiln opening of the carbonization chamber 4 at the lower limit of the vertical portion of the L-shaped guide groove 32. Further, the cylinder 38 is operated to move the support frame 27 supporting the furnace lid opening / closing apparatus main body 11 along the horizontal portion of the L-shaped guide groove 32, and the cylinder 28 is operated to tilt the furnace lid opening / closing apparatus main body 11. Then, the furnace lid 1 supported by the furnace lid opening / closing device main body 11 moves laterally while inclining from directly below the kiln opening. In this case, the red hot coke 39 in the carbonization chamber 4 descends together with the furnace lid 1, and when the furnace lid 1 held by the furnace lid opening / closing device body 11 moves to the side while inclining, it falls into the fire extinguisher 30 and is loaded. To be done. Therefore, the red hot coke 39 does not remain on the heat-insulating castable 2 of the furnace lid 1, but all fall into the fire engine 30.

When the loading of the red hot coke 39 is completed, the cylinder 38 is operated to horizontally move the support frame 27 supporting the furnace lid opening / closing apparatus main body 11 along the horizontal portion of the L-shaped guide groove 32 to lower the vertical portion. And the cylinder lid 28 is operated to return the furnace lid opening / closing device body 11 to the horizontal position. Then, the power cylinder 34 is operated to set the support frame 27 supporting the furnace lid opening / closing device main body 11 to the L-shaped guide groove 3.
When raised along the vertical part of 2, the furnace lid opening / closing device body 1
The furnace lid 1 gripped by No. 1 is attached to the kiln opening of the carbonization chamber 4.
Next, the cylinder 24 is operated to operate the bar-bar engaging members 20, 21.
Is rotated about a spindle as a fulcrum, and the bars 3 and 3 are rotated in the opposite direction by the bar engaging members 20 and 21, so that the bar locking members 5 and 5 can be rotated.
After that, the spring pressing cylinders 18 and 19 are operated in the reverse manner to the above, and the knife edge 7 of the furnace lid 1 is pressed against the kiln frame 8 through the barbs 3 and 3 by the barb spring 6. Next, the cylinders 12 and 13 are operated to move the right and left hooks 16 and 17 of the furnace lid grasping mechanism in a direction away from each other, and the grasping of the furnace lid 1 by the hooks 16 and 17 is released. After that, the power cylinder 34 is operated to set the support frame 27 supporting the furnace lid opening / closing apparatus main body 11 to L
When the vertical guide groove 32 is lowered to the lower limit of the vertical portion, the attachment of the furnace lid is completed.

[0017]

As described above, according to the present invention,
The vertical coke oven's oven lid can be attached and detached with a thick thermal insulation material installed inside, eliminating the flooring of powder coke, which was indispensable for conventional oven lids, thus reducing operating costs. In addition, the equipment cost can be significantly reduced.

[Brief description of drawings]

FIG. 1 is a side sectional view showing a state in which a furnace lid is gripped by a furnace lid opening / closing device of the present invention.

FIG. 2 is a plan view of a furnace lid opening / closing device.

FIG. 3 is a view taken along the line AA of FIG.

FIG. 4 is a side sectional view of a furnace lid attached to a vertical coke oven.

FIG. 5 is a bottom view of a furnace lid mounted on a vertical coke oven.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Furnace lid 2 Heat-insulating castable 3 Barrack 4 Carbonization chamber 5 Barrack locking member 6 Barber spring 7 Knife edge 8 Kiln mouth frame 9 Lug piece 10, 22 Connecting rod 11 Furnace lid opening / closing device body 12, 13, 24, 28, 38 Cylinder 14 , 15 Slide groove 16, 17 Hook 18, 19 Spring pushing cylinder 20, 21 Bar engaging member 25 Main body hardware 26 Stopper 27 Support frame 29 Lifting mechanism 30 Fire engine 21 Guide plate 32 L-shaped guide groove 33, 36 Wheel 34 Power Cylinder 35 Moving mechanism 37 Horizontal guide frame 39 Red hot coke

Claims (3)

[Claims] 1. A bar-locking type furnace lid opening / closing device with a thick insulating material lined in a kiln opening of a vertical coke oven,
At the upper end of the coke fire extinguisher that can be moved below the vertical coke oven, a support frame that tiltably supports the furnace lid opening and closing device main body that consists of a furnace lid grasping mechanism and a barb opening and closing mechanism is installed in the longitudinal direction of the fire extinguisher. A furnace lid opening and closing device for a vertical coke oven, comprising an elevating mechanism for elevating and lowering along an L-shaped guide groove provided on guide plates provided at both ends in a direction and a moving mechanism for horizontally moving. 2. The furnace lid grasping mechanism is composed of rightward and leftward hooks slidable by an operating cylinder, and one of the two grasping bars provided on the barn lock type furnace lid is a rightward hook.
The furnace lid opening / closing device for a vertical coke oven according to claim 1, wherein the other is gripped by a leftward hook. 3. An L-shaped guide groove provided on guide plates provided at both ends of a fire engine in the longitudinal direction has an upper portion which is vertical and a lower portion which is horizontal,
3. A furnace lid opening / closing device for a vertical coke oven according to claim 1, wherein wheels provided at both ends of a support frame for tiltably supporting the furnace lid opening / closing device main body are fitted in guide grooves. .