A kind of dewatering equipment and process method for water-containing wax liquid

Abstract

The invention relates to water removing equipment and process method of a water-containing wax liquid. The water removing equipment comprises a filtering tank, wherein the filtering tank is separated from a wax storage tank by virtue of a filtering net, the filtering tank is connected with a dewaxing kettle by virtue of a wax inlet pipe, the wax storage tank is respectively communicated with the side wall of a water removing tank by virtue of a first pneumatic valve and a second pneumatic valve, a first branch pipe is arranged between the first pneumatic valve and the second pneumatic valve and connected with a circulating wax pump, a fan and a water vapor outlet pipe are arranged at the upper end of the water removing tank, the other end of the circulating wax pump is respectively connected with a second wax inlet pipe and a standing barrel, a wax accumulating tank is fixedly arranged at the upper end of the evaporator, an evaporating pipe is inserted in a wax leaking hole of the wax accumulating tank, and an electric control tank is communicated with the first pneumatic valve, the second pneumatic valve, a third pneumatic valve and a fourth pneumatic valve. According to the water removing equipment, by virtue of a wax discharging hole, the wax liquid can uniformly flow into the wax accumulating tank and can uniformly smoothly downwards flow along the surface of the evaporating pipe so as to evaporate water molecules in the wax liquid, so that the purpose of removing water is achieved. The water removing equipment is simple in structure, high in evaporating speed of water vapor, safe to operate, and difficult to age; the water removing efficiency is 4 times of that of other equipment.

Description

technical field [0001] The invention relates to a dewatering device, in particular to a dewatering device for aqueous wax liquid and a process method for dewatering. Background technique [0002] The general dewaxing precision casting process is to first inject the melted wax liquid into the metal mold, wait for the wax liquid to solidify and take out the wax model, and then perform repeated slurry or sanding operations on the surface of the wax model to form a certain thickness. After the mold shell is dried, the wax mold is heated to let the melted wax liquid flow out, and finally the mold shell can be used for casting, and then the precision casting product can be made. Do not mix water molecules in the above melted wax liquid, otherwise the solidified wax pattern will produce many air bubbles, which may exist on the surface of the wax pattern, which will affect the quality of the subsequent wax pattern and eventually lead to precision casting. Products can also be flawe...

AI Technical Summary

Problems solved by technology

Do not mix water molecules in the above melted wax liquid, otherwise the solidified wax pattern will produce many bubbles, which may exist on the surface of the wax pattern, which will affect the quality of the subsequent wax pattern and eventually lead to precision casting. Products may also be defective

[0003] The wax liquid dehydration device in the prior art is composed of a plurality of hollow planar inclined plates, so that the molten wax is poured on the inclined plates to flow downwards, and the inclined plates are kept at a high temperature so that the water molecules are evaporated, but the inclined plates The plate structure is not easy to make the wax liquid flow down evenly. For example, as long as the equipment is slightly uneven, it will gather into a wax liquid during the process of gradually flowing down, thus hindering the dehydration effect

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