KR100776037B1 - Apparatus for preventing lime stone from unbalance of shaft kiln - Google Patents

Abstract

SHAFT KILN is a vertical kiln that charges limestone ores and calcinates hot coke oven gas with a heat source to produce and release quicklime, and is equilibrated in the lower part of the ore loading damper located above the shaft kiln. A plurality of level meters for measuring the level of gemstones; A hydraulic cylinder installed at the lower portion of the cooling kiln cone of the shaft kiln in the same number as the level gauge, and the rod being adjusted by the rod adjustment motor; And a wheel discharge table attached to one end of the rod of the hydraulic cylinder by mounting flanges and installed in the same number as the level gauge and the hydraulic cylinder. In addition, the hydraulic cylinder is fixed to the rod regulating motor, connecting the screw bolt screwed with the plate to the rotation axis of the rod regulating motor and installed in parallel with the screw bolt, one end is coupled to the rod of the hydraulic cylinder and the other end is fixed to the plate It is characterized by.

By controlling the wheel discharge with the hydraulic cylinder by measuring the level of the raw stone by a number of level gauges, to prevent the drift phenomenon occurring during the process of the raw stone is calcined to produce a quick lime of uniform quality.

Vertical kilns, kilns, limestone, discharge tables, quicklime, hydraulic cylinders, limit switches

Description

Drift prevention device of the inside of vertical firing furnace {APPARATUS FOR PREVENTING LIME STONE FROM UNBALANCE OF SHAFT KILN}             

1 is a conventional product firing and dispensing apparatus.

2 is a shear cross-sectional view showing the discharging of the plastically cooled product.

3 is a detailed view of a conventional wheel discharge operation direction and position.

Figure 4 is a detailed view of the wheel discharge operation direction and position of the stone drift prevention inside the vertical kiln of the present invention.

Fig. 5 is a shear sectional view showing a state of discharging a plastic cooled product in a gemstone drift prevention device inside a vertical firing furnace of the present invention.

6 is a detailed view of a hydraulic cylinder of the gemstone drift prevention device inside the vertical kiln of the present invention.

※ Explanation of main code of drawing ※

11: gemstone loading hopper 11: a, b: gemstone loading damper

12 level meter 13 lance nozzle

14: raw stone in the furnace 15: cooling cone                 

16: thermometer 17a, 17b, 17c, 17d: wheel discharge table

18: hydraulic cylinder 19: wheel discharge table

20: discharge bunker 21: coke oven gas booster

21a: coke oven gas booster duct 22, 23: cooling air duct

24: discharge inspection manhole 25: combustion air duct

26: lance cooling fan 27: discharge feeder

27a, b: discharge bunker damper 28: kiln jacket

201a, 201b, 201c: level meter 202a, 202b, 202c, 202d: hydraulic cylinder

202-1: Cylinder Body 203: Mounting Flange

204: rod adjustment motor 205: screw bolt

206: external limit switch 207: limit interval ruler

210: internal limit switch 211: plate

The present invention relates to a shaft kiln, which is a vertical kiln, and more particularly, to a method and apparatus for preventing in-house gemstone drift in a vertical kiln, in which raw materials are not always drifted during firing of quicklime so that they are always fired in a uniform state. will be.

In general, when limestone is manufactured in a vertical kiln, limestone ore to be fired in the kiln is charged into the first and second kilns, and then combustion air is introduced into the kiln using a blower. The coke oven gas is increased in pressure in the booster 21 and introduced into the lances 13 formed in the first and second kilns through the coke oven gas line 21a to sinter the limestone. Since the wheel discharge table 17 is operated by the hydraulic cylinder 18 is automatically operated limestone is made of quicklime through the preheating table, the baking table, the cooling table.

The products that have been fired in the preheater and the firing zone are cooled by cooling air in the cooling zone.The cooling air cools the quicklime product on the wheel discharge table and then the wheel discharge tail (17) operates the hydraulic cylinder (18). When the bunker dampers 27a and 27b are opened after being temporarily stored in the quicklime bunker 20 and then opened, the discharge feeder 27 is operated by the bunker level meter and transferred by the belt conveyor to be stored in the quicklime product hopper.

The above process is repeated in a series of cycles to produce quicklime, and due to the characteristics of the shaft kiln, a vertical kiln, the raw material having a particle size of 40 ~ 80mm is charged to check the level value by using a single gemstone level gauge and two hydraulic cylinders. (18) and two quadrant-shaped discharge tables (17) consisting of one set operate the product to release the product, and thus the raw material (14) inside the kiln is manufactured through the preheating table, the baking table, and the cooling table. Since the drift 14 occurs when discharging from the discharge table 17, discharging occurs, and there is a problem that the quality is not uniform even when fired in the same furnace.

In addition, the rod of the hydraulic cylinder 18 is fixed if the interval is adjusted once, and operates in the same state until the next adjustment, so the drift phenomenon in the furnace continues, and the plasticity of the product is reduced, leading to the production of unbaked products. There was a problem that a fire occurs in the facility due to the product temperature rises.

The present invention has been made to solve the above problems, the vertical to automatically adjust the interval of the rod of the hydraulic cylinder to operate the wheel discharge table to control the plasticity of the charged quicklime to produce a uniform product An object of the present invention is to provide a device for preventing the drift of gemstones inside a mold kiln.

The present invention is a plurality of level gauges are installed at a lower angle of the gemstone loading damper located at the top of the shaft kiln to measure the level of gemstones to achieve the above object; A hydraulic cylinder installed at the lower portion of the cooling kiln cone of the shaft kiln in the same number as the level gauge and having a rod controlled by a rod regulating motor; And a wheel discharge table attached to one end of the rod of the hydraulic cylinder and installed in the same number as the level gauge and the hydraulic cylinder.

In addition, the hydraulic cylinder is fixed to the rod regulating motor and connecting the screw bolt screwed with the plate to the rotation axis of the rod regulating motor and installed in parallel with the screw bolt, one end is coupled to the rod of the hydraulic cylinder and the other end is It is characterized in that it is fixed to the plate.

Referring to the gemstone drift prevention device inside the vertical kiln of the present invention with reference to the accompanying drawings as follows.

Level meters 12, 201a, 201b, and 201c are provided at intervals of 90 degrees below the gemstone loading damper 11a in order to measure the level of gemstones charged and fired in the kiln. When the level gauges are installed at intervals of 90 degrees and the gemstones drift to one side, deviations occur in the measured values of the four level gauges 12, 201a, 201b, and 201c, and thus the determination of whether the gemstones in the vertical type kilns are drifted.

The hydraulic cylinders 202a, 202b, 202c, and 202d are fixed at equal intervals to the outer shell 28 of the shaft kiln, which is a vertical kiln. The angles at which the hydraulic cylinders 202a, 202b, 202c, and 202d are provided are equal to the same interval as the level meters 12, 201a, 201b, and 201c.

Each hydraulic cylinder (202a, 202b, 202c, 202d) is provided with a rod adjustment motor 204 to automatically adjust the length of the hydraulic cylinder (202a, 202b, 202c, 202d) rod. The rod regulating motor 204 is fixed to the hydraulic cylinders 202a, 202b, 202c, and 202d, and one end of the screw bolt 205 is coupled to the rotating shaft of the rod regulating motor 204. At the other end of the screw bolt 205, the plate 211 to which the external limit switch 206 is coupled is screwed. The combination of the screw bolt 205 and the plate 211 is not fixed but coupled to the inside of the plate 211 so that the screw bolt 205 can rotate. The limit interval ruler 207 is coupled to connect the plate 211 and the hydraulic cylinders 202a, 202b, 202c, and 202d. The limit spacing ruler 207 and the screw bolt 205 are maintained in parallel by the fixing bar 211. The ends of the limit interval ruler 207 coupled to the hydraulic cylinders 202a, 202b, 202c, and 202d are engaged with the rods of the hydraulic cylinders 202a, 202b, 202c, and 202d.

Therefore, when the rod control motor 204 is rotated, the screw bolt 205 is rotated, the plate 211 is moved to the left and right. As the plate 211 moves left and right, the limit interval ruler 207 also moves left and right together. In addition, since the rods of the hydraulic cylinders 202a, 202b, 202c, and 202d are also coupled to the limit interval ruler 207, the rod adjustment motor 204 is rotated to adjust the length of the rods of the hydraulic cylinders 202a, 202b, 202c, and 202d. I can regulate it.

The mounting flange 203 is fixed to the rod ends of the hydraulic cylinders 202a, 202b, 202c, and 202d, and the mounting flange 203 is again mounted on the quadrant wheel discharge tables 17a, 17b, 17c, and 17d. Fix it. Each wheel discharge table 17a, 17b, 17c, 17d is connected to the hydraulic cylinders 202a, 202b, 202c, and 202d, separated from each other, and moves in the rod direction as the rod length of the hydraulic cylinder changes. This is possible.

Between the cooling stand cone 15 and the wheel discharge table 17a, 17b, 17c, 17d of a vertical type kiln, the thermometer which can measure the temperature inside a furnace is provided.

The gemstone drift prevention device in the vertical kiln having the configuration as described above will act as follows.

When gemstones are loaded into the vertical kiln, the level of the gemstones is detected by the level meters 12, 201a, 201b, and 201c, and the wheel discharge tables 17a, 17b, 17c, and 17d are moved to the hydraulic cylinders 202a, 202b, 202c, 202d) to adjust the dispensing.

However, when the stone and the ore is charged inside the vertical kiln, the inevitably concentrates the gemstone to one side and the drift occurs. When the internally generated drift is detected by using the level meters 12, 201a, 201b, and 201c, it is possible to know where the drift occurs in the vertical kiln.

The portion where the gemstones are concentrated and the level value is measured is high to lengthen the rod by rotating the rod adjustment motor 204 coupled to the level meters 12, 201a, 201b, 201c. As the length of the rod becomes longer, the wheel discharge tables 17a, 17b, 17c, 17d move from the standard position to the center so that the circumferential portions of the vertical kiln and the wheel discharge tables 17a, 17b, 17c, 17d are moved. It becomes wider in space, and there is more calcined quicklime passing through the wheel discharge tables 17a, 17b, 17c, and 17d (31). As more lime is discharged, the level decreases.

On the contrary, the part where the level value is measured is the relatively smaller side of the gemstone, so the load between the hydraulic cylinders 202a, 202b, 202c, and 202d is shortened so that the distance between the wheel discharge tables 17a, 17b, 17c, 17d and the firing furnace is reduced. Narrower to reduce the amount of quicklime emitted (30)

By adjusting the level of the raw stone charged into the vertical firing furnace by the above method, the level of the raw stone is kept constant.

The device for preventing gemstone drift in the vertical kiln of the present invention having the configuration and function as described above prevents crushing of gemstone levels in the kiln in the process of manufacturing limestone by firing limestone in the shaft kiln, which is a vertical kiln. Since the calcined quicklime is discharged while maintaining it, the unbaked product can be significantly reduced, and the temperature of the produced quicklime can be lowered to improve productivity.

Claims (2)

In the shaft kiln (SHAFT KILN) is a vertical kiln which charges limestone ore and calcinates the hot coke oven gas as a heat source to produce and discharge quicklime. A plurality of level meters 12, 201a, 201b, and 201c which are equiangularly installed at the lower part of the gemstone charging damper 11a located above the shaft kiln to measure the level of the gemstones; Hydraulic cylinders 202a, 202b, 202c, and 202d installed in the same number as the level gauges 12, 201a, 201b, and 201c in the lower part of the cooling table cone 15 of the shaft kiln, and whose rods are adjusted by the rod control motor 204. )Wow; A mounting flange 203 is attached to one end of the rods of the hydraulic cylinders 202a, 202b, 202c, and 202d, and the level gauges 12, 201a, 201b, and 201c and the hydraulic cylinders 202a, 202b, 202c, and 202d are attached. And a wheel discharge table (17a, 17b, 17c, 17d) installed in a waterway. The screw bolt 205 of claim 1, wherein the hydraulic cylinders 202a, 202b, 202c, and 202d fix the rod regulating motor 204 and are screwed with the plate 211 to a rotation shaft of the rod regulating motor 204. ) Is installed in parallel with the screw bolt 205, one end is coupled to the rod of the hydraulic cylinder (202a, 202b, 202c, 202d) and the other end is fixed to the plate 211 Gemstone drift prevention device in the mold kiln.

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