General specification for construction of refractory concrete

Environmental requirements of refractory concrete construction site
Construction site level.There is no sand, lime, clinker, slag and other sundries in the construction site.TNormal construction environment temperature at 5 ~ 40 ℃. construction water pH value is better in E. 6.5~7.5 storage and treatment of water equipment should be clean without debris.
Temperature control measures
When the temperature is higher than 40 DEG C, the shading treatment should be adopted when the B. temperature is below the temperature of 5 ℃:With 40 ℃ or so of hot water mixing refractory castable (in the first phase to ensure that the refractory material to adjust the temperature of hot water);A high power lamp or a similar heat source is used to maintain the temperature during the initial setting of the refractory material until the refractory has been hardened (at least 24 hours) and the temperature can be reduced.
Check before installation
Check the observation hole, temperature hole, pressure hole, etc. are arranged in place welding.Check the overall dimensions of the metal frame。Check the installation of the supporting plate and the reinforcing plate.The cylinder of the rotary kiln, the backiron, inspected the installation of retaining ring.
Installation of anchor
Make clear the type, material, layout, layout, welding requirements and technical requirements of the anchors to be used.On the use of the types of welding electrodes.Single anchor should be full welding.Combination anchor base should be full welding, V type nails and the base spot welding in order to shake when the separation is not good.
Welding of anchor
The anchor nail and the wall of the device should be fully welded and vertical to the wall.Y type anchor nails should be welded on both sides of the width.The weld surface shall not have undercut, porosity, slag, arc pit, incomplete fusion and leakage defects such as welding, and no residual slag and spatter.When the anchor is directly welded on the wall of the device, it should be close to the wall, and the gap should not be more than 1 mm.The welding quality inspection at least anchor of 1/20 hammer (0.5 kg) test to check the welding.In addition, the first and 500th anchors shall be subjected to impact bending test. If there is a suspected defect, the number of checks should be increased.
Construction of calcium silicate board
Preparation and use of binder
Binder for calcium silicate board supporting products, at the same time with thermal insulation and bonding function. Binder divided into bonded powders (bags) and adhesive liquid (barrels) two parts, supporting the use of. When mixing the two with mud binder.With the proportion of:Adhesive powder: binder liquid =1:3 (weight ratio).Should be used in accordance with the proportion of mixing mud mixing mud binder, the use and storage time should not exceed one hour.
Paste of calcium silicate board
Clean the surface of the construction site.Use wooden hammer or rubber hammer.Paste calcium silicate board should be pressure seam, wrong seam paste.

Taurus Refractory ramming mass Factory mainly engaged in professional manufacturer of development, production and sales of the refractory mixture such as melting copper, aluminum and zinc furnace lining. And supply castable refractory for copper smelting, ramming mass for molten copper,fire clay,refractory mortar, refractory cement ,refractory mixture, refractory concrete and silica sand for copper smelting.
Website: http://www.jnrefractory.com  
Contact: Mr. Niu
Tel: +86-371-64372566
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Email: info@jnrefractory.com
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