Precise alignment method for coal loading cars in rammed coke ovens

I have a solution for you; we just came up with it. First, determine the accurate coal-loading position. Locate the center line of each carbonization chamber and make a mark below the furnace door frame. When loading coal, insert the coal briquettes into the carbonization chamber and pause for a moment (you can do a trial run if time permits) to align the center line of the coal support plate with that of the carbonization chamber; this point represents the accurate coal-loading position, which should be marked. Then, a laser alignment device is installed directly opposite the driver’s operating position, using the laser alignment points to determine the exact location. (The exact location must be determined by going back from the identified position to the furnace number that is directly in front of the driver’s position, and a clear mark should be made there.)

In fact, the issue of coal cakes rubbing against the furnace wall is usually not related to alignment; the possible causes include: 1. elevation, 2. the coal support bottom plate, 3. the tension of the chains, 4. the method of compacting the coal, 5. broken coke inside the carbonization chamber, 6. whether there is graphite on the grinding plates on the machine side and at the two corners. The problem of sticking to the furnace wall is quite common; as temperatures change, the equipment loses its precision, which is why dust removal devices on the organic side are necessary.

The method described on the second floor is the simplest and most practical one; every driver should have a reference point for alignment, after which a laser can be used to mark the corresponding position on the furnace column (it is recommended that the marking points on the furnace column be made of stainless steel plates that are 4–5 mm thick and 60 mm wide, welded in place, and then covered with short steel tubes measuring 80 or 100 mm in length)； It is also recommended that you pay close attention to the verticality of the coal cakes once their movable walls are opened; if the upper part of the coal cakes tilts significantly toward the movable walls, then it is likely that the upper part will come into contact with the walls of the carbonization chamber on the side of the movable walls, or the lower part will touch the walls on the side of the fixed walls, which will naturally lead to more severe smoking

This is also an option we are considering at the moment; it mainly relates to the choice of laser emitter. We’re concerned that the clarity might not be sufficient during the day, making it difficult for truck drivers to see clearly. Do you have any good recommendations for laser emitters?:)

We are also gradually addressing these issues; we have already taken action regarding media-supported floors, graphite, and so on

Have you used this method, or have you seen it work in other organizations? Are there any photos?:):)

We bought it on Taobao; you can check it out