Method and equipment for removing scale on metal wires or metal bars by grinding material water jet

Abstract

The invention discloses a method for removing scale on metal wires or metal bars by grinding material water jet, which comprises the following steps: 1) preparing a grinding material by mixing sand and water in a preset proportion; 2) pumping the prepared grinding material into a splitter by a mortar pump and then allowing the prepared grinding material to enter a jetting cavity; and simultaneously, pressurizing the water by a high-pressure pump to change the water into high-pressure water and convey the water into the jetting cavity, and impacting the grinding materials by taking the high-pressure water as motive power to remove scale through jetting. Special scale removal equipment provided by the method comprises a mixing tank positioned below a scale removal box, an automatic fluidifying and sanding-up device for sanding up sand to the mixing tank, a jetting device and a water box, and also comprises a sand separator positioned in the scale removal box, a high-pressure pump for generating the high-pressure water and the mortar pump for conveying the grinding materials to the sand separator. The grinding materials are impacted by taking high-pressure water as the motive power to remove the scale on the metal wires or the metal bars, and the method and the equipment have the advantages of improving the working efficiency effectively, relieving the labor strength of workers, along with quick cleaning speed, difficult blocking of sprayers, good scale removal effect, no damage to metal matrixes and no environmental pollution.

Description

technical field [0001] The invention relates to a method and equipment for descaling metal wires or rods used for treating the surface of metal materials. Background technique [0002] Metal materials such as metal wires or rods need to remove the scale (commonly known as scales) produced on the surface during hot rolling or annealing before cold drawing. At present, pickling, shot blasting, shot blasting, peeling, and bright annealing And other processes, the dust pollution of shot blasting and shot blasting is very serious, and it causes the surface deformation and hardening of the object to be treated. The material waste of peeling treatment is large, the speed is slow, and there is also the problem of dust pollution. Bright annealing requires heating in a closed reducing atmosphere And cooling, the equipment investment is large and the operation cost is expensive. Therefore, the pickling process is currently the most widely used in the descaling of wire rods and rods. Ho...

AI Technical Summary

Problems solved by technology

This method is to mix water and abrasives through a high-pressure pump and then spray them out. Therefore, the high-pressure pump is easy to wear. Once the high-pressure pump cannot ensure the flow rate of the mixed liquid, the nozzle will be blocked, so the work failure rate is high. Descaling Ineffective

Images