Refractory and wear-resistant plastics

Refractory and wear-resistant plastics

Features:

Wear-resisting refractory plastic is the high bauxite clinker, corundum, mullite and silicon carbide as aggregate, excellent wear resistance, use of superior bondability and high temperature (1600 ℃), made from different binder and additive with high strength wear resistant performance of refractory materials, construction is convenient, good plasticity and good wear-resisting performance advantages, after construction of wear-resisting layer with high strength and abrasion resistance, can fully meet the performance requirements for boiler wear-resistant refractory materials. 

Main physical and chemical properties of the product Al2O3 content: ≥75%

Volume density :(1000℃×3 h), & ge;2.65 g/cm3,

Normal temperature compressive strength :(110℃×24 h), & ge;30 mpa;(1000 ℃ & times;3h), 60 MPa wear resistance :(1000℃×3 h), & le;5.5cm3 construction method:

The material and binder are mixed with phosphoric acid and used evenly.Ramming technology is adopted for construction.Construction technology:

This material adopts ramming and compaction forming method for construction. Before construction, plastic can be laid on the required parts, and the billet laying shall be staggered and close together. After the completion of ramming, the seam of the billet shall be rammed, and then the whole area shall be rammed for 3 times with pneumatic hammer or hand hammer to ensure the material compactness.Right of anchorage is very important for supporting sheet can be plastic, use rigid anchorage DingShao, anchorage DingShao up and down or so is approximately 150-250 - mm intervals, material thickness of the fetus can need according to the design requirements of different furnace type decision. 

1, determine the damaged parts, the edge with a tool to right Angle depression 20mm, that is, the repair thickness is not less than 20mm.After repair, the plastic on the original refractory smooth over, can not appear trapezoidal joint. 

2. Clean the repair area. If there are any loose particles in the original refractory, remove them without any floating dust. 

3, will the plastic with very clean knives slicing, fresh side stick to repair parts, and then use pneumatic hammer hammer or dao matter, material slab should be staggered joints close to the arrangement, dao should be ramming material after finished the seams of the billet, cannot appear crack, mending surface after all stick good, comprehensive repeatedly with hammer tamping, until the billet material still wet surface phenomenon.Ramming pay attention to the edge, can not ramming the original refractory, finally the whole repair surface into a smooth plane.4. Repair local depresses of the water-cooled wall. Weld heat-resistant steel tips on the plate or water-cooled tube body at the depresses of the water-cooled wall.Applicable area:

It is suitable for the construction of the thin water wall in the furnace, mainly used in the dense phase area of the furnace, steam cooling, water cooling cyclone separator and other parts.The wear-resistant refractory material in this area is designed as a single-layer ramming structure, fixed with wear-resistant pin, with a thin design thickness, and laid directly on the construction surface. 

In circulating fluidized bed burner band castable for repair, cyclone tube etc. Use the application of refractory parts: its strong stick performance, can repair any irregular wear parts, without using steel template or mold, can ignition immediately after the completion of the engineering project, need not special maintenance, so as to shorten the construction period, cost saving. 

In the water wall tube and burner band border wear handling: free barbecue wear-resisting refractory can be plastic construction on water cooling tube, the layup bao hou can control in the following 5 mm, this is the other similar products can't do it, no barbecue wear-resisting refractory plastic in water wall and the burner band junction construction, can change the location of the geometric angles, made the transition region is quite flat, so close to the plane, thus reducing the formation of eddy current in the region, a combination of eddy current in the location of residence time, the wear degree is reduced greatly. 

The repair of the defective part of the furnace lining of CFB boiler and the anti-wear treatment of the junction of water wall and fire protection belt.Storage method

Avoid open storage and direct sunlight exposure.Summer, should be stored in a cold and damp place, winter antifreeze.