SU603346A3 - Method of charging coal to coke oven chamber and device for effecting same - Google Patents

Description

The working unit of the coal supply mechanism can be made in the form of an auger mounted in a pipe - “located approximately horizontally and connecting the lower opening of the bunker with the loading telescopic pipe. It is advisable to equip the screw at the output end with a disk segment with a plane perpendicular to the longitudinal axis of the screw. Coverage of the angle of the disk segment from 30 to 180 ° The screw surface of the screw can be placed on the length segment corresponding to the elevation angle from 30 to 180 °, and may have an opening in the section corresponding to the elevation angle from 30 to 180 °. The auger at the output end may be provided with a nozzle having the shape of a hollow cylindrical segment located above the top opening of the loading telescopic nozzle.

FIG. 1 shows a schematic representation of a coke oven chamber with a coal-loaded car during loading of the chamber, a longitudinal section; in fig. 2 - section A-A of FIG. one; in fig. 3 - feed the pins with a cylindrical segment, a cut; in fig. 4- section BB of fig. 3; in fig. 5 - feed screw with a disk segment, side view; in fig. 6 shows a section bb of FIG. five; in fig. 7 - element of the screw with interrupted screw surface; in fig. 8 - screw element with holes on the screw surface.

The device contains a battery of coke ovens G, the chambers 2 of which are closed by doors 3 and 4. The chamber has 5 loading hatches in the ceiling .6-9. Over the hole 10 is set one hundred to 11 ,; connected to the gas collector 12, located along the battery of coke ovens. On the overlap of the coke ovens, the LZ wagon with bins 14–17 is moved, the feed tubes 18 are attached to the bunkers and are connected to telescopic nozzles 19, tightly mounted on the frame of the furnace hatch. In pipe 18, there is a 2Q screw connected to the actuator 21. The actuator 21 can be connected to a software control system (not shown) that shuts off the motor and the auger at equal intervals of time at equal intervals. It can be provided that the drive in the control system is turned off for increasing time intervals towards the end of the camera loading and, in addition, a change in the drive operating time period. .

A hollow cylindrical segment 23 can be fixed to the front end of the screw 22, the length of which provides for overlapping the outlet opening connecting pipe 18 with the branch pipe 19. The angle covered by segment 23 is approximately 180 °.

Alternatively, a disk segment 24 may be attached to the front end of the screw 22, the plane of which is perpendicular to the screw 22. The angle of the segment 24 is approximately 180 ° and depends on the number of revolutions of the drive and the duration of the interruption interval of the coal flow. Segment 24 partially blocks the outlet opening of pipe 18 and opening 25 of telescopic pipe 26 when it is lowered onto loading port 9. Pipe 26 has a partition 27. Pipe 26 moves in a guide tube 28. The upper partition 29 of pipe 26 is rigidly connected the rod 30 vertically moving through the opening of the cover 31 of the pipe 28 and the sharirio connected by the rod 32 with the two-armed rotary lever 33 connected to the brush 34 of the hydraulic cylinder 35. The guide pipe 28, the hydraulic cylinder 35 and the strut 36, on which the sharirio is fixed the lever 33 is rigidly fixed Lena on the frame of the car 13.

The CZ hydraulic cylinder serves to lift the pipe 26 to the upper position, shown by a dotted line.

The screw surface can be made with gaps 37 at regular intervals. The size of the gap may be in the range of 30 to 180 °. Otherwise, the screw can be made): windows 38. This also ensures interruption of the coal flow when loading the coke oven chamber.

It could also include periodically driven movable flat or rotating gates interrupting the flow of coal into the telescopic tube.

It is possible to use screw drives with a variable speed, which allows adjusting the intervals for interrupting coal flows.

The coke oven chamber is loaded as follows.

After installing the coal-loading wagon 13 above the charging Krka furnace 1 and lowering the telescopic pipes 19 to the loading hatches 6-9, the screw ports 21 are turned on in the pipes 18 and the coal flows into the chamber 2. At the stand 11, the vacuum is pre-evacuated in a known manner.

As a result of the intermittent supply of coal to chamber 2 between the coal streams from the previously incoming coal flows to the chamber and newly incoming coal streams, gaps are formed, ensuring free suction of gases to one hundred to eleven.

It is advisable to increase the time intervals for interrupting coal flows as the layer of coal loaded into the chamber increases. In this case, the increasing loading gas volume will be given more time for the free nrozhdeyn to the stand 11.

After filling the chamber with coal and leveling it, the screw drives 2i are stopped, the nozzles 19 are raised, the hatches 6-9 are closed, the carriage 13 is moved and fills the bins 14-17 with coal. The cycle is repeated.

The proposed method will reduce the pollution of the atmosphere with harmful gases and dust.

Claims (2)

Invention Formula I. The method of loading coal into the coke oven chamber is that coal is supplied to the chamber through the upper charging ducts of the furnace and the resulting charging gases are sucked into the raw gas collector associated with the chambers, in order to reduce harmful gases and dust into the atmosphere, coal is interrupted periodically. 2. A method according to claim I, characterized in that the intervals of interruption of coal streams increase as the load on the chamber increases. 3. Method according to paragraphs. or 2, characterized in that the coal flows are interrupted one by one - 4. The method according to one of claims. 1, 2, and 6, characterized in that the coal streams interrupt sequentially, starting from the coal stream farthest from the collector. 5. A device for carrying out the method according to one of claims 4 to 4, comprising a battery of coke ovens, the chambers of which are connected to the crude gas collector, and a mobile coal-loading wagon mounted at the top of the battery, having bunkers, the number of which corresponds to the number of loading hatches in the furnace, and Coal feeding mechanisms with hoppers, equipped with periodically controlled speed drives and loading telescopic nozzles, characterized in that the coal supply mechanisms are provided with intermittent operating elements. 6, the apparatus according to claim 5, characterized in that the working member of the coal supply mechanism is a screw mounted in a pipe located approximately horizontally and connecting the lower opening of the hopper with a loading telescopic pipe. 7. The device according to claim 6, characterized in that the screw has at its output end a disk segment whose plane is perpendicular to the longitudinal axis of the screw. 8. The device according to claim 7, characterized in that the disk segment covers an angle of from 30 to 180 °. 9. The device according to claim 6, characterized by the fact that the screw surface of the screw is interrupted at a segment of length corresponding to the lifting angle from 30 to 180 °. 10. The device according to claim 6, characterized in that the screw surface of the screw has an opening in the portion corresponding to the lifting angle from 30 to 180 °. 11. A device according to &, characterized in that the screw is provided at the outlet end with a nozzle having the shape of a hollow cylindrical segment located above the upper opening of the loading telescopic nozzle. Information sources; taken into consideration: mania during examination: 1. USSR Copyright Certificate No. 287901, cl. From 10 to 31/00, 1966. 2. Journal “IronmakJng Proceeding, 1973,. 32, p. 283-284. : .. jk. ...............; -.-- ..; . ::::. .. .: i.:; -. v "./ riff tf