JPS6015487A - Leveler equipped with compacting device for upper layer coal in coke oven - Google Patents

Abstract

PURPOSE:To increase the bulk density of loaded coal at the top of a carbonization chamber and in the center in the width direction of an oven and improve coke quality to minimized variability, by adjusting the height of compacting rollers and levelling coal in regular succession in keeping with reciprocal sliding motion of a leveller. CONSTITUTION:A leveller 14 is pushed forward into a carbonization chamber 1 by moving a travelling shoot 13 from a leveller entrance 11 of an overn cover 10 on the extrusion side. A compacting roller 16 rotates by its own weight and comes down to press coal 5 on the top in the center of the carbonization chamber in the oven width direction for levelling. As a bearing 21 is moved upward by a pneumatic or hydraulic cylinder 25, coal 5 on the pressed coal 5 is levelled. Thus, as the bearing 21 is moved up to the top of a leveller frame 20, while the height of the compacting roller is being adjusted in regular succession, the bulk density of coal is increased at the top, esp. in the center in the oven width direction. As the cylinder 25 is actuated at the end of operation to move the bearing 21 downward and draw out the leveller 14, the compacting roller 16 is pushed upward and the leveller 14 is pushed back to the former state.

Description

[Detailed Description of the Invention] When charging coal into a horizontal chamber type coke oven (hereinafter referred to as coke oven), the present invention is capable of gravity charging using a charging car installed at the top of the furnace and installing it in an extruder. This relates to the structure of a leveler that performs leveling work.

When charging coal into a coke oven, the charging car at the top of the furnace receives the coal, pushes out the coke, and attaches the lids on both sides of the carbonization chamber. Open the pallet and carry out pA gravity charging from the charging car. Open the leveler port at the top of the furnace lid on the machine side and level the coke oven gas by sliding the upper part of the coking chamber back and forth with the leveler installed in the extruder. A generated gas discharge port is formed along the entire length of the carbonization chamber to discharge the generated gas from the riser pipe opening, and the upper part of the charged coal is leveled to uniformly heat the coal. Although carbonization is performed, the conventional gravity charging, leveling work, and carbonization methods have the following problems.

(1) The bulk of charged coal in the carbonization chamber generally tends to be high at the bottom and low at the top and between the charging ports, and there is a large variation.

(2) During the carbonization process, the charged coal changes states of softening, melting, and solidification shrinkage, and these states simultaneously exist in the carbonization chamber, and the softened and molten material meets in the center of the carbonization chamber and is re-assimilated into coke. However, the coke-like coke was formed in the upper part of the carbonization chamber, and the quality of the coke in the central part in the oven width direction was inferior compared to other parts.

(3) Until coking of the charged coal is completed, there is a large temperature difference between the wall of the coking chamber and the center of the coking chamber in the width direction, and this temperature difference causes the thermal history of the coal to change in the coking chamber. This affects coke quality, which varies by location.

As mentioned above, the degree of progress of carbonization in the carbonization chamber differs depending on its location, and the causes are thought to be the carbonization temperature, the bulk density of the charged coal, and the difference in thermal history between the vicinity of the wall and the center of the carbonization chamber. The reaction of carbonization is also different, which affects coke quality.

In view of this problem, the present invention provides a leveler that increases the bulk density of charged coal in the upper part of the coking chamber and in the center in the width direction of the furnace during leveling work, thereby improving the quality of coke and reducing its dispersion. It is.

That is, the device of the present invention is used for leveling the coal charged by being attached to the frame at the tip of the leveler. The other end of the link can be pivoted with a compaction roller attached to the rotation point! [1] The sleeve piece attached to the engaging part and the retaining part on the brace provided on both sides of the leveler frame allow for vertical movement of 13J'.
The pressure or hydraulic pressure is attached to a bearing configured as shown in item ii, and a continuous plate with a retaining portion provided at one end of the bearing is provided so that the leveler frame can be pivoted around the shaft. The 1h section at the end of the cylinder is attached to a bearing plate via a metal alloy so that the cylinder can rotate around a shaft, and is used to level the coal charged into the carbonization chamber from the charging port at the top of the coke oven. When doing so, operate the air or hydraulic cylinder to position the pressure tube roller at the lowest position to adjust the ttil + receiving height, open the leveler port located at the top of the extruder side furnace cover, and return it! ll Tatsumusume delivery and coal)
In order to prevent damage, the movable shaft installed under the leveler frame is moved to the inside of the kiln at the top of the furnace lid, and when the leveler is advanced into the carbonization chamber, a compaction roller is installed at the tip. Pressure increases when the link is removed from the tip of the moving sheet in the kiln.
80-Ra rotates downward due to the action of a part of the weight and is positioned perpendicularly to the leveler frame, and when the leveler further advances, the consolidation roller rotates and presses the coal at the center in the width direction of the furnace. Level up. Next, when moving the leveler backward, operate the air or hydraulic cylinder attached to the leveler frame to move the bearing supporting the consolidation roller to the top, and when the leveler moves backward, the coal pressed by the consolidation roller in the front will be removed. Coal scraped by a leveler is placed in the upper part of the coal pile, and when the coal pile 2- moves backward, the coal is further pressed to the lower part by a compaction roller. After leveling is completed, when the leveler is pulled back to the specified position, the link equipped with the compaction roller pivots around the lower part of the moving chute and is located at the upper part, where it is housed within the leveler frame and does not interfere with other auxiliary equipment. Able to perform work.

In this way, by sequentially leveling while adjusting the height of the consolidation roller each time the leveler slides back and forth, the bulk density of the charged coal at the top of the carbonization chamber can be increased, It is possible to improve the quality of the upper coke carbonized in the furnace, improve the quality of the coke in the central part of the furnace rlJ direction, and reduce the dispersion, making it possible to produce high-quality coke. The effect is extremely canine. The present invention will be explained in detail below based on embodiments shown in the drawings.

FIG. 1 is a main sectional explanatory view of the embodiment of the present invention immediately before the start of leveling in the coke oven carbonization chamber, FIG. 2 is a main sectional view of the embodiment of the present invention at the initial stage of leveling in the coke oven carbonization chamber, and FIG. 3 is a coke FIG. 4 is a main sectional view of the embodiment of the present invention in the latter stage of leveling in the furnace carbonization chamber, FIG. 4 is a sectional view of the raw barley apparatus of the embodiment of the present invention after leveling, and FIG. 5 is an explanatory diagram of the apparatus of the present invention.

As shown in Fig. 1, Fig. 2, Fig. 3, and Fig. 4, four to five charging ports 3 are provided in the top part 2 of the coke oven lid carbonization chamber 1 in the furnace length direction. A riser pipe port 4 is provided at the ends of the coke side and the extruder side, so that the coke furnace gas 6 generated in excess of the coal charged in each carbonization chamber 1 passes through the riser pipe port 4 and is collected. It is collected by a cutting machine (not shown) and sent to the next process. The back stays 7 on both sides of the coke oven carbonization chamber 1 tighten the furnace body in the furnace length direction, and several furnace cover frames 8 are cut out at the furnace mouth from the ceiling 27 of the carbonization chamber 1 to the furnace bottom 28. The coking chamber 1 is sealed by a coke side furnace bell 9 and an extrusion side furnace lid, and the extrusion side furnace lid 10 is equipped with a leveler port 11 and a lid 12 for leveling. A charging car (not shown) runs on a rail (not shown) laid in the furnace top 2 to charge coal 5 into each carbonization chamber 1 by gravity, and then fills the leveler port 11 of the extrusion side furnace lid 10 with Open the lid 12 and move the moving shoe (13) attached to the extruder to the furnace 1M10.
The leveler 14 is leveled by reciprocating 1% b, and the discharge port 29 of the generated coke oven gas 6 is removed.
The upper part of the coal 5 is leveled, the coal 5 is heated uniformly, and the excess coal 5 passes through a moving sheet 13 and a fixed chute 15 and is collected in a hopper 15' for processing. The leveler device equipped with the coal compaction device charged at the top of the carbonization chamber of the present invention is a device that is attached to the tip of the leveler 14 as shown in FIGS. It looks like it can be rotated freely via bottle J7! The other end of the link 18 is connected to the leveler frame 20 via a shaft 19'.
Rotate in the center of the width direction of the furnace.
i[1 is set. The bearing 21 is attached to the leveler frame 20 by welding, and is attached so that it can move up and down by providing a concave retaining portion with the side metal fitting 22, and furthermore, a seven-runde 23 having a retainer is provided at one end of the bearing 21. Then, the air or hydraulic cylinder 25, which is rotated by the shaft 24 on the leveler frame 20, is connected to the leveler frame 20 with a complete 1 screw 26 and 1 of the 1 rule.
It is rotatably attached to a pier 27 that connects the oil pan 21.

An example of the use of the device of the present invention is i:l) 1) As shown in Figure 1, the coal charged through each charging port 3 of the carbonization chamber 1 by the charging car (not shown) in the furnace top 2 is The leveling work is performed by opening the lid 12 of the leveler port 11 of the extrusion-side furnace lid 10, moving the moving rod z, -113 to the upper part of the furnace lid 10 in the carbonization chamber, and moving the leveler 14 into the carbonization chamber 1, as shown in Fig. 2. As shown in FIG. 2, the device rotates under the weight action of the consolidation roller 16 and the link 18 at a position away from the tip of the movable chute 13 and is located below the leveler 14. When the leveler 14 is further advanced, as the leveler moves as shown in FIG. 3, the consolidation roller 16 rotates and levels the coals 5 in the widthwise center of the coking chamber while pressing the upper part of the coal 5 with the weight of the leveler 14. Next, by operating the air or hydraulic cylinder 25, the bearing 21 is moved upward for leveling, and the coal 5 placed on top of the previously pressed coal 5 is leveled while being pressed. In this way, by adjusting the height of the consolidation row 216 one after another and leveling while moving the bearing 21 to the top of the leveler frame 20, the bulk density of the charged coal 5 in the upper part, especially in the center of the furnace, is improved. do. When the leveling work is completed by creating a discharge path for the coke oven gas 6 generated in the upper part of the charged coke chamber 1, the height of the bearing 21 is moved downward by operating the air or hydraulic cylinder 25 as shown in Fig. 4. When the leveler 14 is pulled out, the moving seat 113
The compaction roller 16 and the link 18 are pushed upward at the tip of the leveler frame 20, and the leveler 14 can be pulled back to a predetermined position 1f. In this way, the above-charging coal compaction device of the present invention can increase the "i')'5 It is possible to improve J·[ and reduce its variation, and it is possible to reduce the amount of heat consumed by <1 Js by improving the bulk density.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of the main 1υi side of the embodiment device (misfire just before the start of leveling in the coke oven carbonization chamber), and Fig. 2 is the g:1 new side of the 911 device according to the present invention at the initial stage of leveling in the coke oven carbonization chamber. Explanatory diagram, Figure 3 is the apparatus according to the present invention in the latter stage of leveling in the coke oven carbonization chamber: t
Principal decision surface theory 1. lIJ diagram, Figure 4 shows leveling A (6
"Failure to occur after termination" Main cross-sectional explanatory diagram of the example device, Fig. 5 (
a), (b), (c), and (d) are explanatory diagrams of the apparatus of the present invention. In the figure: 1... Carbonization chamber 2... Furnace top 3... Charging port 4... Rising pipe opening 5゛° Coal frame 6... Coke oven lid backstay 8... Furnace lid frame 9...Coke side furnace lid 10...Extrusion pipe; side furnace (1f
11...Leveler "1" 12...Leveler lid 13.
...Moving chute 14...Leveler 15...Fixed shoe 1-'15'...Hopper 16...Consolidation roller 17...Pin 1 8...Ring 1
9...I) Mountain 20...Leveler frame 21.
... Bearing 22 ... Guide hardware 23 ... Flange portion 24 ... Shaft 25 ... Air or hydraulic cylinder 26 ... Carbonization chamber ceiling 27 ... Carbonization chamber hearth bottom 28 ...
・Coke oven gas outlet No. 5 l11 ((Z) Figure 5 (C) No.

Claims (1)

[Claims] A rotatable roller is engaged with one end of the connecting plate by an engagement trochanter, and a rotatable roller is installed on the other end of the connecting plate, on a bearing that is pivotally mounted to allow the guide installed in the leveler frame to move up and down. The retaining part of the piston rod of the air or hydraulic cylinder, which is pivotably attached to the leveler frame by a retaining rotor, is attached to one end of the bearing. 1. A leveler device equipped with a compaction device for the upper part of coal charged in a coke oven, characterized in that the device is engaged with a connecting portion provided in a coke oven by an engaging trochanter and is housed in a distal end portion of a leveler frame body.