repairing and protecting gold mining slurry pump volute casing and guard plate
In May of 2016,the tailings slurry pump and front & back guard plate of Tongbaiyinpo Glod Mining Co.,Ltd have serious erosive wear,make the
volute casing and guard plate disintegrate to send to Xiangyang City Hundred Shield Coating Material Co.,Ltd,we found that a majority of this
batch pumps is repaired workpiece through inspection,the pump case which repaired by the wear resistant coating products(tell apart it from
product colors and raw material) which produced by other factories has serious abrasion,even perforation,but the pump case which repaired by
using the products from Xiangyang City Hundred Shield Coating Material Co.,Ltd has obvious slight erosive wear,so Tongbai Gold Mining decided
to choose the new product of BD7024 slurry pump repair special abrasion resistant ceramic coating which developed by Xiangyang City Hundred
Shield Coating Material Co.,Ltd as the repairing material.
Slurry pump material: High chrome alloy.
The condition before repairing: guard plate and volute casing have serious abrasion,partial volute casing has already been worn through,the part of
feed port is serious missing.
The repairing difficulties:There is no sealing ring between front & back guard plate and volute casing of this pump,it depends on taper for sealing
completely,the accuracy requirement is very high.
Material selection: BD7024 slurry pump repair use wear resistant coating and special prime coat.
Construction tools: angle grinder,wire brush,grinding wheel,plaster knife,plastic knife,rubber hammer,special rounding tools,hair brush,electronic scale,
drying oven.
Auxiliary materials: cleaning agent,duster cloth,gloves.
Construction technology:
1.Do the sand blasting treatment for the surface the workpiece,clean it with the cleaning agent and dry it by airing,to get the clean,dry and coarse surface.
2.Weigh the weight of the A and B component of high strength special prime coating according to the specified ratio and mix them uniformly,
smear it on the surface of the prime coat without curing and make it be compacted,then wait for the prime coating curing,when the temperature is low,
can heat it up to promote the prime coat curing.
3.Weigh the weight of the Part A and Part B of BD7024 slurry pump repair special coating according to the specified ratio and mix them uniformly,
make the uniform mixed materials be coating on the pending-repair parts,knock on it to be compacted with rubber hammer,then repair the surface of
adhesive layers to be smooth with special rounding tools,make the surface to be flat and smooth.
4.Curing:BD7024 slurry pump repair use wear resistant coating can be initial curing at room temperature,after initial curing,heat it up to the temperature of
80 degree slowly and keep this temperature for 2-3 hours,only in this way,it can improve 30% combination property.Generally it can exceed the working life
of new pump.(if the condition is allowed,try your best to use the way of heating for curing)
5.Trim matching parts to reach to the suitable mounting dimensions.
6.Non-matching parts should be brush coating with prime coat or spray paint.
The effect photos after repairing:
