Rotary kiln for cement plant

Introduction of cement rotary kiln:

The Cement Rotary Kiln has simple structure, convenient and reliable control during the production process, a few wearing parts, high operation ratio. The rotary kiln produced by our factory has rugged structure, smooth operation, high quality outlet products. Besides, we provide our customers with advanced, efficient vertical heating device, and cyclone heating device.

Cement rotary kiln structure:

The basic components of a rotary kiln are the shell, the refractory lining, support tyres and rollers,drive gear and internal heat exchangers.

The kiln connects with a material exit hood at the lower end and to ducts for waste gases. This requires gas-tight seals at either end of the kiln. The exhaust gas may go to waste, or may enter a preheater which further exchanges heat with the entering feed. The gases must be drawn through the kiln, and the preheater if fitted, by a fan situated at the exhaust end. In preheater installations which may have a high pressure-drop, a lot of fan power may be needed, and the fan is often then largest drive in the kiln system. Exhaust gases contain dust and there may be undesirable constituents such as sulfur dioxide or hydrogen chloride. Equipment is installed to scrub these out before the exhaust gases pass to atmosphere.

Working Principle:

The kiln is a cylindrical vessel, inclined slightly to the horizontal, which is rotated slowly about its axis. The material to be processed is fed into the upper end of the cylinder. As the kiln rotates, material gradually moves down towards the lower end, and may undergo a certain amount of stirring and mixing. Hot gases pass along the kiln, sometimes in the same direction as the process material (co-current), but usually in the opposite direction (counter-current). The hot gases may be generated in an external furnace, or may be generated by a flame inside the kiln. Such a flame is projected from a burner-pipe (or "firing pipe") which acts like a large bunsen burner. The fuel for this may be gas, oil or pulverized coal.

Pre-sales service

1.help customers find the right product by professional technology and business consultation

2.provide plans of the machines installation freely

3. make customized products according to the clients requirements

After-sales service

1.highly inspecting equipments in each working procedure ,quality comes first

2.fast and safty delivery

3.assist clients to bulid the equipment

4.dispatching engineers to install and test equipments

5.train the first-line operators on site

6.provide lifetime maintenance service