Classifications

• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
  • C10B37/00—Mechanical treatments of coal charges in the oven
  • C10B37/02—Levelling charges, e.g. with bars

Definitions

• the invention relates to a leveling bar for coking ovens according to the preamble of claim 1.
• EP 0 483 497 B1 discloses a generic leveling rod which consists of sheet metal vertical cheeks arranged in the longitudinal direction of the furnace and parallel to one another, transverse coal carriers arranged in the form of cheek-high sheet metal walls arranged at regular intervals in the space delimited by the cheeks are. Shortly before the under the filling holes of the coke oven chamber during the
• the leveling rod is inserted through the leveling door opening into the coke oven chamber and moved back and forth, thereby leveling the coal filling cone. So that the free gas collecting space above the coal is not blocked to a large extent after the leveling rod has been moved into the furnace chamber during the filling process, the coal carriers do not extend over the entire width of the space between the two cheeks and the coal carriers are mutually offset from each other one of the two cheeks arranged. The cheeks are therefore connected to each other by spacer bars.
• the invention has for its object to provide a leveling rod, in which a sufficiently free gas channel in the gas collection space is ensured at all times during the leveling process and at the same time a good one
• Furnace filling level is guaranteed.
• the leveling bar according to the invention has the advantage that a free gas channel is formed in the space between the cheeks of the leveling bar during the leveling process, through which the filling gas can flow horizontally unhindered to the riser pipe or to the template.
• This gas channel is particularly reliably formed if, according to a development of the invention, the height of the coal carriers corresponds to at most half the height of the cheeks.
• the leveling bar Since the leveling bar is open at the front, it pushes into the coal pouring cone and carries the coal pouring cone with the coal takers. Unlike the known leveling bars, the coal cone does not pile up in front of the leveling bar. According to the invention, the number of coal carriers is increased so that the leveling rod has sufficient transport capacity. So that the transport capacity of the leveling rod according to the invention at least corresponds to the transport capacity of the known leveling rod (EP 0 483 497 B1), the number of coal carriers is at least so large that the sum of all partial cross-sectional areas of the sum of all full cross-segment surfaces of coal carriers, the height of which is greater than the height of the Cheeks stretches, corresponds. The number of coal carriers is increased until the distance between the coal carriers corresponds to the height of the coal carriers. In this embodiment, it is ensured that the coal in any case by the
• Coal carriers can fall through or fall into the compartment formed between the coal carriers. No coal bridges can build up on the coal carriers.
• the transport capacity is increased, so that more coal is transported with each back and forth movement of the leveling bar. In this way, the formation of coal cones under the filling holes is largely avoided. If the leveling rod is moved in the furnace chamber with a higher frequency than previously, a cone formation at leveling rod height is avoided.
• the coal drivers arranged one behind the other can also have different heights. This also prevents a high coal mountain from being built up in front of the coal carriers.
• the overflowing coal over a coal carrier with a low height falls into the compartment behind the coal carrier without a high coal mountain being able to pile up. This ensures that half of the coal overflowing over the coal carriers there is a free gas channel for the discharge of the filling gases within the leveling rod.
• coal carriers can be attached to the cheeks of the leveling bar at an angle that deviates from the vertical.
• Some coal carriers can be arranged at an angle with their upper edge towards the rear end of the leveling rod and other coal carriers with their upper edge at an angle to the front end of the leveling rod. With the oblique arrangement to the rear, the overflow of the coal is facilitated during the forward movement of the leveling bar. If the coal carriers are arranged obliquely towards the front, the coal is pressed down a little in this area and the leveling rod experiences a certain buoyancy.
• the inclined coal drivers act as baffles during the filling process. The coal is led through the coal carriers from the filling holes in the area between the filling holes. In this way, the formation of a coal cone is reduced.
• coal carriers movably.
• some of the coal carriers in their upper or lower area are movably supported on the cheeks of the leveling bar.
• the leveling rod Each time the leveling rod is pulled forwards or backwards, they change their position and level the coal in the respective inclined position. So that the coal carriers cannot align horizontally, the inclination is limited by a stop.
• coal drivers are wedge-shaped. It is possible that the wedge tip points up or down. Such a wedge shape enables a lightweight construction of the leveling Rod, because the wedge-shaped coal drivers allow a reduction in material thickness.
• the cheeks of the leveling bar can also be wedge-shaped. This improves the statics of the leveling bar. If the wedge tip points downwards in the direction of the coal to be leveled, the coal cannot get stuck between the wedge-shaped cheeks, since the space widens downwards.
• the upper edges of the cheeks and / or the coal carriers can be bevelled on one or both sides.
• the leveling rod stroke, the leveling frequency, the number, the distance and the height of the coal carriers must be coordinated with the coal mass flow of the filling device.
• the leveling rod performs a pendulum or slag movement during the leveling process.
• the bearing and guide rollers of the leveling bar are designed with a slope that causes the leveling bar to oscillate or slag.
• the leveling rod can remove the cone strips on both sides of the gas collection space during the leveling process.
• the removal of the cone of loose cones can be improved by ribs on the outside of the cheeks or corrugated sheets.
• the cheeks have openings. These openings allow coal to slide into the compartments that form between the coal carriers. This increases the effectiveness of the leveling process.
• the openings can be made so large that they are only interrupted by struts to which the carbon carriers are attached.
• the struts can also be arranged obliquely.
• the leveling rod becomes a truss girder with a rectangular cross section, through which only a small part of the gas collecting space is blocked during the leveling process. This particularly effectively prevents the gas collection chamber from becoming clogged with coal and the filling gases generated during the filling process can be discharged unhindered in the longitudinal direction of the furnace.
• the truss-like construction of the leveling rod also means that there is a lateral flow through the leveling rod, i. H. possible across the length of the furnace.
• the individual struts which are arranged at the openings of the cheeks, can be arranged at an angle to the cheeks. This makes it easier to strip off the coal on the sides of the coke oven chamber.
• the cheeks of the leveling bar can be widened outwards at their front end.
• the leveling bar has one or more guide brackets at its front end.
• the guide bracket or brackets are used so that the leveling rod can be easily inserted through the leveling opening.
• the front part of the leveling rod which is open except for the guide bracket or brackets, can move into the coal filler cone without the coal fill being piled up.
• the coal cone is then removed by the following coal carriers and the coal filling is leveled.
• Cheek openings can be arranged with movable carbon scrapers. Due to the force of the coking coal on the coal scrapers during the backward movement of the leveling rod, the movable coal scrapers are pressed against the walls of the coke oven chamber. When the leveling bar is advanced again, the cone of rubble on the furnace walls is removed by the open carbon scrapers. When the leveling rod extends from the furnace chamber, the coal scrapers that are folded out to the side are brought into a closed position through the frame of the leveling opening. When entering the next furnace, the carbon scrapers as guide brackets can make it easier to insert the leveling rod.
• the leveling process can be improved according to the invention by using gas under pressure.
• fluid supply lines with nozzles are arranged on the cheeks of the leveling rod.
• the primary purpose of the gas is to blow off the cone strips that remain after the coal cones have passed through with the leveling rod.
• the nozzles can be at the same height over the leveling rod length distributed one behind the other and / or arranged one above the other.
• the nozzles are combined with the planning rod, which has openings in the cheeks.
• the blown coal is blown through the openings in the space between the cheeks and transported there by the coal carriers.
• a gas channel is provided in the gas collection chamber through the leveling rod, through which the filling gases can be extracted.
• the leveling rod is sealed by a sealing and guide box.
• This sealing and guide box has bulkheads that protrude from above into the leveling bar and just above the coal carriers, which are connected by a sealing plate, thus sealing the gas duct.
• the sealing rod is supplemented by a sealing plate.
• the leveling rod can be enclosed in a housing which lies sealingly against the leveling door opening.
• the sealing and guide box is designed with joints in such a way that the partition wall of the sealing and guide box concerned can move back and forth and thus adapt to the height differences of the coal drivers.
• the movable bulkhead can be deflected from the negative pressure side in its direction, which limits the negative pressure effect.
• you can also several sealing and guide boxes can be arranged one behind the other. Each sealing and guide box should be made larger than the distance between the coal carriers, so that at least two coal carriers are covered by the sealing and guide box.
• the coal carriers can be provided with openings.
• the number of openings can be arbitrary, so that in extreme cases the carbon carriers as
• Perforated sheet are executed. It is advantageous to arrange the openings in the upper area of the coal carriers or to make them larger. The gas channel between the cheeks is thus partially expanded in the area of the coal carriers. It is also possible to make the coal carriers as high as the cheeks and to form a gas channel through the openings in the coal carriers.
• Figure 1 is a perspective view of a first embodiment of the leveling bar according to the invention.
• 2 is a perspective view of a second embodiment of the leveling bar;
• FIG. 3 shows a side view of sections of a third leveling rod with inclined coal carriers
• Fig. 4 shows a fourth embodiment of the leveling bar
• Figure 5 is a plan view of the bearing and guide rollers of a leveling bar.
• FIG. 6 shows a displacement device for the bearing and guide rollers of a leveling rod
• FIG. 7 shows a fifth embodiment of a leveling rod in a perspective view
• FIG. 8 is a plan view of movable carbon scrapers of a leveling bar
• FIG. 9 is a side view of a leveling bar with lines and nozzles
• Fig. 10 shows the arrangement of a sealing and guide box for a leveling rod
• Fig. 11 shows a sixth embodiment of a leveling bar with openings in the coal carriers.
• FIG. 1 shows a leveling bar with cheeks 1 and carbon carriers 2 arranged between the cheeks 1.
• the height 3 of the coal carriers 2 is significantly lower than the height H of the cheeks 1.
• the coal carriers 2 are arranged at a distance 5 one behind the other.
• Your crossbar surface 4 covers only a small part of the space between the cheeks 1, so that a free gas channel 6 is formed.
• coal carriers 2 which have different heights 3, are arranged one behind the other between the cheeks 1.
• the first, low coal carriers 2 cannot pile up a coal mountain in front of them.
• the overflowing coal can fall into the next compartment and be transported there.
• a free gas channel 6 is present above the coal carriers 2 at all times.
• FIG. 3 shows an example of carbon carriers 2 which are fastened to the cheeks 1 at an angle which deviates from the vertical. Through the coal carriers 2, the coking coal falling into the furnace chamber during the filling process is distributed into the furnace and thus counteracts the formation of the cone.
• FIG. 4 shows a wedge-shaped design of the coal carriers 2 and the cheeks 1. This prevents the transport compartments formed between the coal carriers 2 from becoming blocked by coking coal, since the passage area for the incoming coking coal expands downward.
• FIG 5 the storage of the leveling bar with the cheeks 1 and the coal drivers 2 is shown.
• the bearing and guide roller 8 has a slope 7.
• Guide roller 8 cause a change in the tracking of the reciprocating leveling rod due to the bevel 7 with each revolution of the bearing and guide roller 8. This causes the leveling bar to move sideways during the leveling process, which may be existing cone strips removed under the filling holes between the cheeks 1 and the furnace walls.
• FIG. 6 shows bearing and guide rollers 8, which are designed to be laterally displaceable by a displacement device 9. This also makes it possible to set the leveling bar in a lateral movement and to remove bulk cone strips that form.
• FIG. 7 shows a leveling bar
• Cheeks 1 have openings 11. Through the openings 11, the coal can fall into the transport compartments of the leveling rod located between the carbon carriers 2 and be distributed during the leveling stroke.
• the openings 11 are delimited by struts 12 on which the carbon carriers
• the struts 12 can be arranged at an angle to the cheeks 1. As a result, the coal is better guided into the transport compartments between the coal carriers 2.
• a guide bracket 13 can be arranged on the cheeks 1, which guards the insertion of the leveling rod into the
• Figure 8 shows that at the front end of the leveling rod on the cheeks 1 movable carbon scratches 15 with the legs 16 and 17 are attached.
• the coal scraper 15 rotates in a joint 18.
• the force of the coking coal during the backward movement of the leveling rod presses the leg 16 of the coal scraper 15 against the wall of the coke oven chamber via the leg 17.
• the carbon scrapers 15 are removed by the
• FIG. 9 shows that lines 20 with nozzles 21 are arranged on the cheeks.
• a gas under pressure for example nitrogen, can be blown through the nozzles 21 during the pianing in such a way that the lateral conical streaks of material are removed or do not form at all.
• the nozzles 21 can be arranged in any way.
• the recoil of the nozzles can also generate pendulum or slag movements.
• Sealing and guide box 23 is sealed.
• the gas channel 6 is largely sealed by a suspended sealing plate 25 of the sealing box 23, which is movably arranged with bearing shafts 26 and bulkhead walls 27.
• a sealing plate 28 is provided under the cheeks 1 and the carbon carriers 2. This sealing plate 28 can be part of a housing 24 which surrounds the leveling rod and lies sealingly against the leveling door opening, not shown. This seal prevents undesired air from entering the furnace during the filling gas extraction.
• FIG. 11 shows coal carriers 2 which have openings 29 and 30.
• the filling gas can pass through the openings 29 and 30 during the leveling process.

Landscapes

• Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Materials Engineering (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Organic Chemistry (AREA)
• Coke Industry (AREA)
• Constitution Of High-Frequency Heating (AREA)
• Auxiliary Methods And Devices For Loading And Unloading (AREA)
• Electric Ovens (AREA)
• Solid Fuels And Fuel-Associated Substances (AREA)
• Carbon And Carbon Compounds (AREA)
• Chemical And Physical Treatments For Wood And The Like (AREA)
• Macromonomer-Based Addition Polymer (AREA)
• Tunnel Furnaces (AREA)
• Heat Treatments In General, Especially Conveying And Cooling (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

ID=7873257

Family Applications (1)

Country Status (18)

Cited By (1)

Families Citing this family (5)

Family Cites Families (22)

• 1998
  • 1998-07-08 DE DE19830382A patent/DE19830382C2/de not_active Expired - Fee Related
• 1999
  • 1999-06-30 TW TW088111066A patent/TW561188B/zh not_active IP Right Cessation
  • 1999-07-02 EP EP99932784A patent/EP1095119B1/fr not_active Expired - Lifetime
  • 1999-07-02 US US09/743,524 patent/US6929719B1/en not_active Expired - Lifetime
  • 1999-07-02 AT AT99932784T patent/ATE240996T1/de active
  • 1999-07-02 CN CN99809980A patent/CN1119387C/zh not_active Expired - Lifetime
  • 1999-07-02 ES ES99932784T patent/ES2198927T3/es not_active Expired - Lifetime
  • 1999-07-02 CZ CZ20004919A patent/CZ300394B6/cs not_active IP Right Cessation
  • 1999-07-02 DE DE59905661T patent/DE59905661D1/de not_active Expired - Lifetime
  • 1999-07-02 CA CA002337006A patent/CA2337006C/fr not_active Expired - Lifetime
  • 1999-07-02 SK SK3-2001A patent/SK286433B6/sk not_active IP Right Cessation
  • 1999-07-02 WO PCT/EP1999/004578 patent/WO2000002976A1/fr active IP Right Grant
  • 1999-07-02 BR BRPI9912520-0A patent/BR9912520B1/pt not_active IP Right Cessation
  • 1999-07-02 AU AU49047/99A patent/AU755720B2/en not_active Expired
  • 1999-07-02 JP JP2000559199A patent/JP3935318B2/ja not_active Expired - Lifetime
  • 1999-07-02 PL PL99345342A patent/PL194035B1/pl unknown
  • 1999-07-02 RU RU2001103642/12A patent/RU2198908C2/ru active
• 2000
  • 2000-01-20 KR KR10-2000-7014942A patent/KR100440048B1/ko not_active IP Right Cessation
• 2001
  • 2001-01-05 ZA ZA200100122A patent/ZA200100122B/en unknown

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