Method for processing coal ash thin wall core tube

Abstract

The invention relates to a processing method for a fly ash thin-wall core tube, in particular to a processing method for dual-purpose cement. 1.0 to 1.4 cement, 2.5 to 2.8 fly ash, 0.2 to 0.3 water, 0.03 cement polymer rubber powders and 0.5 straw powders are prepared according to weight ratio; the materials are stirred uniformly to paste slurry in a blender; a piece of iron plate is made into a shape of cylinder and a middle alkali mesh-cloth is laid in the cylinder-shaped iron plate, then the prepared slurry is injected into to make a thin-wall core tube concrete; the core tube concrete is naturally curing for three to four days and qualified warehoused. The processing method for dual-purpose cement has the advantages that material source for processing the dual-purpose cement is rich, waste is reused, cost is low, craft is simple, large scale popularization and application are suitable and is better than large weight, complex manufacture and uneasy transportation of an old thin-wall core tube.

Description

technical field [0001] The invention relates to a processing method of a dual-purpose cement pipe, in particular to a processing method of a fly ash thin-walled core pipe. Background technique [0002] At present, the production of thin-walled cement pipes is generally done manually. The method is to stir the cement mortar, and then manually spread the cement mortar (and add mesh cloth) on the thin steel plate mold to maintain the finished product. The disadvantage is that the labor intensity is high and the production efficiency is low. , the pipe wall thickness is uneven, the strength is low and the space occupied is large, and the production efficiency is low. The "Manufacturing Method for Automatic Forming of Thin-walled Cement Pipe" announced by the Patent Office of the State Intellectual Property Office on September 28, 2005 includes the following Step (1) in proportion: water 0.2-0.5, cement 1-2, fine sand 2-3, stir the cement mortar for 2-5 minutes, (2) coat the mold...

AI Technical Summary

Problems solved by technology

[0002] At present, the production of thin-walled cement pipes is generally done manually. The method is to stir the cement mortar, and then manually spread the cement mortar (and add mesh cloth) on the thin steel plate mold to maintain the finished product. The disadvantage is that the labor intensity is high and the production efficiency is low. , the pipe wall thickness is uneven, the strength is low and the space occupied is large, and the production efficiency is low. The "Manufacturing Method for Automatic Forming of Thin-walled Cement Pipe" announced by the Patent Office of the State Intellectual Property Office on September 28, 2005 includes the following Step (1) in proportion: water 0.2-0.5, cement 1-2, fine sand 2-3, stir the cement mortar for 2-5 minutes, (2) coat the mold release agent on the inner surface of the mold, place the reinforcing fiber Materials, clamp the mold and add prefabricated heads, put them into the rotating cylinder of the centrifugal device, and clamp and fix them, (3) start the rotating cylinder, the maximum speed is 100-700 rpm, the rotation time is 20-120 seconds, and the speed-up time 5-20 seconds, deceleration time 5-20 seconds, moving injection time 10-60 seconds, take out the molding mold for health preservation

But above-mentioned practice, product weight is heavy