DE102004012670B4 - Cleaning chuck doors and their frames in coke ovens comprises moving leveling rod and sleeve in front of chuck door opening and moving carriage with rotating brushes over sleeve to clean open door during leveling process - Google Patents

Abstract

Cleaning chuck doors (3b) and their frames (4) in coke ovens comprises moving a leveling rod (14) and sleeve (13) in front of a chuck door opening (1). A carriage (19) with rotating brushes (15) or scrapers is moved over the sleeve to the open door and cleans it during the leveling process. - An INDEPENDENT CLAIM is included for apparatus for carrying out the above process.

Description

The The invention relates to a device for cleaning of leveling doors of coke ovens including their frames with brushes and / or scrape, where the brushes and / or scraper movably on a carrier device on the housing of the Dozer muffs are attached. The invention also relates to a method for cleaning of leveling doors from coke ovens.

With the horizontal chamber coking of hard coal in bulk operation, the world over applied processes for the production of coal coke the coke ovens over filling holes in filled the oven ceiling. Form under the filling holes It is characterized in the upper part of the furnace Schüttkegel, with the help a leveling bar must be leveled. The so-called machine side Coke oven doors Therefore, each have a small planer door in the upper area, mostly attached to horizontal hinges and locked to the coke oven door is.

The leveling door should like the entire coke oven door preferably Close gas and air tight. She is with a sealing system, z. B. a spring-suspended and the pressed, equipped with circumferential metal profile. The seal presses against a sealing surface, the so-called sliding door frame, on the coke oven door.

By Condensation of hydrocarbons, e.g. Coal tar, in common with deposited carbon dust, Caking occurs in the area of the seal. These pollutions complicate or prevent the perfect tightness of the system.

To the Cleaning of leveling doors from coke ovens including their frames are cleaning devices with circulating chains to drive the scraper carrier or brush holder developed Service. For Sealing strips, gas channels, Stone holder, flanks of the stone plug as well as for the chamber frame have become also scraper enforced, the up and down or sideways and (Farrenkopf, "Coke, the story of one Material ", Volume 1, Page 119 (2003)). It is also described here that modern printing machines formed with their ancillary equipment as a single-point machines are. That means that while of filling a chamber at the same time at a next chamber lifted the doors and the coke cake pressed can be. In the same position of the printing machine is the Door and door Frame cleaning and reinstalling the door.

For high production performance It is important that the oven operating times are as short as possible.

There while of leveling at the leveling opening to prevent wall damage no air is to be sucked in, is normally with gas outlet or flame formation to be expected. This is done with the so-called leveling muff, a leveler created a remedy. It refers to a housing, the scraper bar in the area in front of the leveling door as possible tightly encloses. After opening the planing door it will be in front of the siding drove and seals them as far as possible.

From the DE 36 42 905 A1 and the DE 29 14 419 C2 For example, means are known for cleaning the sealing surfaces of the planing hole frames on the doors of horizontal chamber coking furnaces. The cleaning tool is mounted on a separate carriage, the rollers are guided in rails, the rails are attached to the furnace-side end of the dozer and moved together with this in working position. Before and after the cleaning process, the leveling opening is released for leveling the coal.

In the DE 35 02 488 C2 cleaning devices of leveling doors and grading frames are described. Before or after the grading process, the cleaning devices can be pivoted in front of the opening of the coking oven.

In the DE 36 05 174 A1 cleaning tools for planing doors are described, which are connected to a frame which is slidably mounted on the Koksausdrückmaschine.

From the DE 84 13 448 U1 the cleaning of the sole of the dozer is known behind the leveling door by a tuyere arrangement.

The Previously known cleaning devices for leveling doors and their frames have the disadvantage that the cleaning step before or after the grading process accomplished must and must thus the dwell time of the printing machine in front of the furnace and thus the Oven operating time extended becomes.

task The present invention relates to cleaning devices for leveling doors and their framework and methods in which the cleaning process largely while of leveling the filled Coking coal performed can be.

There have been found devices for cleaning planing doors of coke ovens including their frames with brushes and / or scrapers, which characterized in that a carrier device with movable brushes and / or scrapers is mounted on the housing of the dough mower.

The Cleaning the dozer door takes place during the grading process. The oven operating times are not extended. Emissions are practically excluded.

In a particular embodiment the device according to the invention For example, the inclination angle of the carrier device for the moving brushes and / or scraper varies and be adapted to the open planer door. It is achieved here that the brushes and / or scraper uniformly on the open leveling door rest.

These Alternative is important because of the structural condition at some coke ovens the planing doors can only be opened up to a certain angle.

A preferred embodiment the device according to the invention is characterized in that on the part facing the coke oven of the bulldozer housing a vertical support device for mobile to brush and / or scraper attached when retracting the dozer to the Cleaning is driven to the frame of the dozer.

The to brush or scraper of the device according to the invention are made of metal or plastic that is in the range of temperatures from about 200 ° Celsius at the planing door withstand. For example, brass brushes used.

The to brush and scrapers are each attached to movable discs, the on the carrier devices are mounted. The discs are by hydraulic cylinders and / or moved by electric motors to thus rotate and / or vibrate the to brush and / or scraper effect. In this way, the unwanted approaches at the planing door and their frames removed.

The carrier devices mounted on the leveling muff for cleaning the planing door and for cleaning the frame are mounted on a carriage and are used to clean the door or driven the frame.

• • der Planiermuff mit der Planierstange vor die Planieröffnung gebracht wird,
• • eine Trägervorrichtung mit beweglichen Bürsten und/oder Schabern, die auf dem Planiermuff angebracht ist, an die geöffnete Planiertür gefahren und Ansätze an der Tür durch rotierende und/oder vibrierende und/oder Hin- und Herbewegungen der Bürsten und/oder Schaber entfernt werden.

There has also been found a method of cleaning planing doors of coke ovens including their frames with brushes and scrapers, characterized in that when the leveling door is open

• • bringing the dozer with the leveling bar in front of the leveling opening,
• A carrier device with movable brushes and / or scrapers mounted on the leveling muff, driven to the open leveling door, and lugs on the door are removed by rotating and / or vibrating and / or reciprocating the brushes and / or scrapers.

• • eine vertikale Trägervorrichtung für bewegliche Bürsten und/oder Schaber, die an dem dem Koksofen zugewendeten Teil des Planiermuffgehäuses angebracht ist, vor die Planiertür gefahren wird und
• • Ansätze an der Tür durch rotierende und/oder vibrierende und/oder Hin- und Herbewegungen der Bürsten und/oder Schaber entfernt werden.

A particular embodiment of the method according to the invention is characterized in that after retraction of the leveling muff

• A vertical support device for movable brushes and / or scrapers, which is attached to the Koksofen facing part of the Planiermuffgehäuses, is driven in front of the leveling door and
• • Approaches on the door are removed by rotating and / or vibrating and / or reciprocating brushes and / or scrapers.

These two parts, leveling door and planing door frame According to the invention of approaches and caking cleaned.

The process according to the invention can be carried out, for example, as follows:
For the cleaning process, which proceeds essentially parallel to the leveling process, the open leveling door is pivoted all the way up to the stop or the position of the leveling door is determined by solid metallic stop blocks.

The leveling door gets from the on the coke ejecting machine attached planing door opening device held in their position. This will damage the Hinges prevented.

Of the Bulldozer is then driven in front of the dozer, so with the dozer can be leveled off the coking coal.

On The cleaning device is moved in front of the open leveling door to the leveling muff. The cleaning tools, brushes or scrapers now come in contact with the sealing surfaces to be cleaned Leveling door.

It is possible, too the planing door to achieve a the cleaning cheap Winkels with the doorknob opener on Piece in Closing direction after to bring to the front on the cleaning elements.

On the carriages of the cleaning device are two superimposed carriages, of which the lower one horizontal and the upper one oblique vertical Performs cleaning movement. The upper carriage carries the cleaning tools.

The oscillating cleaning movements can successively, but preferably simultane- ously tig over actuators (eg hydraulic cylinder) are executed.

there to lead the cleaning tools by the overlay of the horizontal and the vertical movement of a circular motion, which is responsible for the cleaning effect, but also for the life of the brushes and scraper is beneficial.

The moving brushes and / or scraper are in the example shown on a circulating chain Roles attached.

The Cleaning residues at the planer door cleaning be in a drive carriage on the front attached chute collected. The slide is the ancestor of the carriage under the open planer door pushed. When retiring of the dozer, together with the carriage, the slide works down and empties the residues in the existing leveling carbon slide.

The Cleaning the tarpaulin door frame is generally carried out according to the invention with a side of the leveling muff attached brush cleaning, which is hydraulically moved up and down. The brush drive is via a Electric motor.

in this connection will be a vertical movement over all to be cleaned surfaces executed. An even horizontal cleaning movement requires an unnecessarily large apparatus Effort and more space, but of course also possible.

The Side-mounted cleaning part moves before placing the dozer on the planing door frame once back and forth over the surface to be cleaned.

Of the Use of this planing door frame cleaning device is not necessary in practice with every oven operation, but only if strong caking has formed. A thin tar film on the sealing surface is even beneficial for one good sealing effect of the planing door.

The Cleaning the leveling door is either triggered by hand or at a preset furnace clearance, e.g. at every fifth Actuate the planing door opening device, triggered.

With Help of the device according to the invention in the method according to the invention it is more surprising Way possible, the emissions at the planer door opening too reduce.

The inventive device and the inventive method can by the 1 to 5 be explained.

1 shows the doorknob opening ( 1 ) of a coke oven in closed ( 3a ) and opened ( 3b ) Status. The planer door ( 3a ) respectively. ( 3b ) lies on the frame ( 4 ) on. The planer door ( 3a ) respectively. ( 3b ) with the doorknob ( 5 ) and via toggle closure ( 6 ) and the closing wedge ( 2 ) locked. The movement of the planing door swivel bracket ( 5 ) via the pivot bearing ( 8th ). The leveling door consists of the heat shield ( 9 ) and the planing door seal cutting edge ( 10 ). With the help of the suspension plate ( 11 ) and the Planierfelder ( twelve ) for the contact pressure of the sealing edge ( 10 ) the leveling door ( 3a ) to the frame ( 4 ) pressed.

2 shows the cleaning device according to the invention, which on the Planiermuff ( 13 ) is mounted. The cleaning device is in front of the open leveling door ( 3b ).

The planer door ( 3b ) is equipped with the leveling door swivel bracket ( 5 ) about the pivot point of the pivot bearing ( 8th ) and the operating bracket ( 7 ) open.

The planer door ( 3b ) with planing door seal cutting edge ( 10 ) with spring plate ( 11 ) and the heat shield ( 9 ) is above the Planierürfeder ( twelve ) for the contact pressure of the sealing edge ( 10 ) on the dozer ( 5 ) attached.

The cleaning device consists of the cleaning brushes ( 15 ) on the brackets ( 16 ) are attached.

The cleaning device with the guide and roller conveyor ( 18 ) for the carrying rollers ( 16 ) is on the carriage ( 19 ) attached. The carriage ( 19 ) with the hydraulic cylinder ( 20 ) on the planing muff ( 13 ) emotional.

The cleaning residues fall during the return of the dozer ( 13 ) on the collecting chute ( 38 ).

3 shows the cleaning device according to the invention with inclined leveling door ( 3b ).

The carriage ( 19 ) connected to the hydraulic cylinder ( 20 ) is carried, carries the carrier element ( 25 ) with the pressure element ( 28 ) on the carriage ( 19 ) is attached. On the carrier element ( 25 ) is written on rolls ( 24 ) a sleigh ( 23 ) for moving the brushes up and down. The up and down movements of the carriage ( 23 ) are activated by the actuating element ( 27 ).

In 3 are the frame of the dozer ( 4 ) and also the dozer ( 14 ) to recognize.

4 shows the cleaning device for the planing door frame according to the invention, in which at the coke oven facing part of the Planiermuffgehäuses ( 13 ) with the leveling bar ( 14 ) a vertical support device ( 31 ) for movable brush rollers and / or scrapers ( 30 ) when retracting the dozer ( 13 ) for cleaning the frame ( 4 ) of the leveling door is driven. The cleaning device is connected to the motor drive ( 29 ).

The brush rollers for the planing door frame ( 30 ) are displayed on the 31 ) over the frame ( 4 ) of the leveling door. The brush roller ( 30 ) is on a carrier ( 33 ) and drives over the guide rollers ( 34 ) on the management carrier ( 31 ) to the planing door frame ( 4 ).

The management carrier ( 31 ) with the horizontally extendable frame for the cleaning unit ( 35 ) can be attached to the planing muff ( 13 ) or separately next to the leveling muff, to the steel structure of the coke ejecting machine. The movements of the cleaning unit are controlled by the guide rollers ( 36 ) and ( 34 ) and via corresponding hydraulic cylinders ( 37 ) and ( 32 ) in horizontal and vertical direction and optimally to the frame of the dozer ( 4 ) hazards.

The Cleaning residues fall on the catch slide.

5 shows the disposal of cleaning residues.

The 5 shows the leveling door opening of the coke oven ( 1 ), the dozer ( 13 ) with the leveling bar ( 14 ) and above the cleaning device for the leveling door.

Below the frame of the leveling door is a collecting slide for planing carbon ( 38 ), on which, if necessary, the residues of cleaning from the collecting device ( 21 ) are emptied. The collecting device ( 21 ) is transmitted via the roller block ( 22 ) emotional. The movements (swinging up or down) are caused by the relative movement "X" (see 5 ), the leveling muff ( 13 ) before docking and after separation from the planing door frame ( 4 ) (relative movement between muff and the carriage ( 19 ) of the dozer door cleaning device).

The collecting device ( 21 ) is on the shuttle ( 19 ) hinged.

1

Doorknob opening of the coke oven

2

Verschließkeil

3a

Dozer door in the closed Status

3b

Dozer door in open Status

4

frame the planing door

5

Planiertürschwenkbügel

6

Toggle latch

7

actuating bow

8th

pivot bearing

9

Heat shield

10

Planiertürdichtschneide (Membrane)

11

suspension plate

12

Planiertürfeder

13

Planiermuff

14

leveler

15

cleaning brush

16

bracket for one brush with roller bearings

17

height adjustment the brushes

18

managerial and roller conveyor for the drive

19

traversing for the cleaning device

20

hydraulic cylinders

21

catcher for the cleaning residues

22

Rollenbock for the activity the collecting device

23

carriage for Aufauf and movements

24

caster

25

support element

26

caster for the cross slide

27

Actuator for up and down movements of the carriage ( 23 )

28

Pressure element for the carrier element ( 25 )

29

motor drive for the cleaning brush for the frame

30

brush roll for the Planiertürrahmen

31

guide support

32

cylinder for vertical movements

33

support carriages for the Cleaning unit of the tarpaulin door frame

34

leadership

35

Horizontal extendable frame for the cleaning unit of

Planiertürrahmens

36

supporting and leadership roles for horizontal movements of the

cleaning unit of the sliding door frame

37

cylinder for horizontal movements

38

catcher for the cleaning residues

X

Relative movement of the leveling muff ( 13 )

Claims (6)

Device for cleaning of leveling doors of coke ovens including their frame with brushes and / or scrapers, characterized in that on the housing of the dough mower, a support device with movable brushes and / or Scha bern is appropriate. Device according to claim 1, characterized in that that the inclination angle of the support device for the moving brushes and / or scraper to the open leveling door is customizable, so the brushes and / or scraper evenly on the open leveling door rest. Device according to one of claims 1 or 2, characterized that at the Koksofen facing part of the Planiermuffgehäuses a vertical support device for mobile to brush and / or scraper attached when retracting the dozer to the Cleaning is movable on the frame of the leveling door. Device according to one of claims 1 to 3, characterized that for the brushes and / or Scraper a rotating and / or vibrating movement is executable. Method of cleaning planing doors of coke ovens including theirs Frame with brushes and Scrapers, characterized in that with the sliding door open • the leveling muff in front of the siding is brought • one support device with movable brushes and / or Scrapers mounted on the planing muff, driven to the open planer door and while of the grading approaches at the door seal by rotating and / or vibrating and / or scraping movements the brushes and / or Scrapers are removed. Method according to claim 5, characterized in that that after retiring the bulldozer • one vertical support device for movable brushes and / or Scrapers attached to the part of the planing muff housing facing the coke oven is to the frame of the planing door is driven • and approaches at the door by rotating and / or vibrating movements of the brushes and / or scrapers be removed.