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Method and device for removing moisture and solid impurities in investment casting mold material by pressure coalescence

An investment casting and solid impurity technology, which is applied to the cleaning/processing machinery of casting materials, casting molding equipment, manufacturing tools, etc. Low energy consumption, improve the quality of mold material, reduce the effect of oxidative deterioration

Inactive Publication Date: 2014-10-22
曲险峰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of low processing efficiency, high energy consumption and rapid deterioration of mold material performance in the above-mentioned mold material recovery technology, and to provide a method of using the hydrophilicity of the surface of the filler to melt the recycled mold material under pressure. A method for dehydration and slag removal by coalescence of water droplets, which can realize energy-saving, high-efficiency, continuous and high-stability mold material dehydration and slag removal process

Method used

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  • Method and device for removing moisture and solid impurities in investment casting mold material by pressure coalescence
  • Method and device for removing moisture and solid impurities in investment casting mold material by pressure coalescence

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Embodiment 1

[0029] Such as figure 1 As shown, the vertical tank device for pressurized coalescence to remove moisture and solid impurities in the investment casting mold material includes a control system (not shown), a heat preservation tank 1, a feed control valve 2, and a liquid inlet distributor 3 , coalescing packing 4, pressure sensor 5, discharge control valve 6, window 7, separated water cooler 8, separated water discharge control valve 9; The liquid distributor 3, the liquid inlet distributor 3 is connected with the feed control valve 2 under the heat preservation tank 1; the top of the heat preservation tank 1 is connected with the discharge control valve 6, and is provided with a pressure sensor 5; the bottom of the heat preservation tank 1 is separated from the The water cooler 8 is connected, and the outlet of the separated water cooler 8 is provided with a discharge control valve 9 for slag-containing separated water; an observation window 7 is provided at the wax-water inte...

Embodiment 2

[0035] Such as figure 2 As shown, the horizontal tank device for pressurized coalescence to remove moisture and solid impurities in the investment casting mold material includes a control system (not shown), a heat preservation tank 1, a feed control valve 2, and a liquid inlet distributor 3 , coalescing filler 4, pressure sensor 5, discharge control valve 6, window 7, separated water cooler 8, separated water discharge control valve 9, water bag 10; one end of the insulation tank 1 is connected with the feed control valve 2, and the other One end is connected to the discharge control valve 6 from the top, and a pressure sensor 5 is provided to measure the pressure in the insulation tank 1; the feed control valve 2 is connected to the liquid inlet distributor 3 in the insulation tank 1; the coalescing filler 4 is filled in the insulation tank 1 The middle area in the tank 1; the bottom of the insulation tank 1 is provided with a water bag 10, and the water bag 10 is connected...

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Abstract

The invention discloses a method and an apparatus for removing moisture and solid impurities in pattern material for investment casting by the way of coalescence under pressure. By means of the wet coalescence effect and collision coalescence effect of surface hydrophilic coalescent pack arranged in an insulating tank on water drops, the water drops in the pattern material can be adsorbed to coalesce on the surface of the pack and gradually formed into big water drops, and the big water drops flow on the surface of the pack, come off from the edge, settle in the pattern material and separate from the pattern material; at the same time, solid impurities or soluble salt dispersed in the water drops or adsorbed on the surfaces of the water drops settle along with the water drops as well, and thereby the water and the impurities are removed from the pattern material. A control system can control heating power and regulate feed flow, discharge flow and drainage flow according to the values of a temperature sensor, a pressure sensor, a wax-water interface sensor and the like to realize continuous and stable operation. The invention overcomes the defects of conventional apparatuses, such as long treatment time, high energy consumption, low efficiency and large equipment-occupied space, and achieves an energy-saving, high-efficiency, continuous and stable pattern material water and impurity removal process.

Description

1. Technical field [0001] The invention belongs to the technical field of solid-liquid and liquid-liquid separation, in particular to a method and device for pressurized coalescence to remove moisture and solid impurities in investment casting mold materials, suitable for different types of investment casting mold materials The dehydration and slag removal treatment solves the problems of long processing time, high energy consumption, low efficiency and large space occupied by equipment in the existing dehydration and slag removal treatment method. 2. Background technology [0002] Melting the lost wax pattern (dewaxing) is one of the main steps in the investment casting process. There are many methods of dewaxing, such as organic solvent method, hot water dewaxing method, high pressure steam dewaxing method, flash dewaxing method, microwave dewaxing method, hot sand dewaxing method, etc. The most widely used method is the high-pressure steam method, which is also the main ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22C5/00B22C5/08
Inventor 曲险峰
Owner 曲险峰
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