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Diatomite functional material and preparation method thereof

A functional material, diatomite technology, applied in the field of diatomite functional materials and its preparation, can solve the problems of low diatomite content and poor product performance, and achieve the effects of reducing pollution, improving product quality, and reducing the process

Inactive Publication Date: 2019-10-25
邱连旺
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of poor product performance caused by the low diatomite content in the existing diatomite decorative materials, and to provide a diatomite functional material and its preparation method

Method used

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  • Diatomite functional material and preparation method thereof

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preparation example Construction

[0039] The present invention also provides a preparation method of diatomite functional material, comprising:

[0040] Step 1: Mix the various raw materials according to the proportion, and then put them into a mold for pressing and molding to obtain a molded body; the molding process is to put the mixture into the mold in the extrusion equipment or pressure equipment for pressing to obtain a plate or column molding body;

[0041] Step 2: put the molded body into a drying room or kiln for drying, the drying temperature is 20-200°C, preferably 90-150°C, and the drying time is 1.5-60h; the drying time depends on the size of the molded product However, when the molded product is small, the drying time is preferably 1.5-4h, more preferably 1.5-2.5h, and when the molded product is large, the drying time is preferably 30-60h, more preferably 25-50h;

[0042] Step 3: After drying, the molded body is shaped and placed in a heating hydraulic press for direct hot-press molding or calci...

Embodiment 1

[0045] Step 1: Mix the raw materials according to the proportions in Table 1, and then put them into a mold for compression molding to obtain a molded body;

[0046] Step 2: put the molded body into a drying room for drying, the drying temperature is 120°C, and the drying time is 2 hours;

[0047] Step 3: After drying, the shaped body is shaped and put into a downdraft kiln for calcination. The calcination temperature is 950°C, and the calcination time is 30 minutes. The calcined shaped body is shaped, engraved or printed to obtain diatomite functional material .

Embodiment 2

[0049] Step 1: Mix the raw materials according to the proportions in Table 1, and then put them into a mold for compression molding to obtain a molded body;

[0050] Step 2: put the molded body into a drying room for drying, the drying temperature is 150°C, and the drying time is 12 hours;

[0051] Step 3: After drying, the molded body is shaped and placed in a heating hydraulic press for direct hot-pressing at 250°C, and the hot-pressed molded body is then shaped, engraved or printed to obtain a diatomite functional material.

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Abstract

The invention provides a diatomite functional material and a preparation method thereof, and belongs to the technical field of diatomite materials. The diatomite functional material is prepared from the components in parts by weight: 100 parts of one or two mixtures of diatomite or a diatomite filter aid, 0-25 parts of an inorganic porous material, 0-30 parts of an organic binding agent, 10-30 parts of an inorganic binding agent, 100 parts of water, and the content of SiO2 in the diatomite is greater than 60%. The diatomite functional material is based on the diatomite with the organic bindingagent and the inorganic binding agent and prepared through mixing, molding, calcining, shaping, carving or printing and other processes; and the preparation method has the advantages of being simple,convenient to use, wide in application range, large in filtration flow, high in precision, good in effect, stable in chemical property, high in pressure and corrosion resistance strength, long in service life and the like, the content of SiO2 in the material is greater than 80%, porosity is greater than 70%, and the compressive strength is 20-30 MPa.

Description

technical field [0001] The invention belongs to the technical field of diatomite materials, and in particular relates to a diatomite functional material and a preparation method thereof. Background technique [0002] In the fields of wine making, pharmacy, sugar making, rubber making, food, cooking oil, drinking water, industrial water, petrochemical industry, industrial oil and other fields, in order to ensure the purity and quality of industrial liquids, they must be filtered by filters. Before the filter is filtered, it is necessary to mix the solid powder of the filter medium such as diatomite filter aid, perlite filter aid (or cellulose), activated carbon, activated clay, powder metallurgy, etc. with clear liquid or purified water. Then apply the filter medium on the filter element (which can be a plate, disc, net or blade, etc.) of the filter machine through a 15-30 minute circulating filtration process, and form a filter cake of 2-3 mm before filtering. When the filt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/08C04B35/14C04B35/622C04B35/626C04B35/63C04B35/634C04B35/636C04B28/00
CPCC04B28/001C04B35/14C04B35/622C04B35/62605C04B35/6303C04B35/63408C04B35/636C04B38/08C04B2111/00017C04B2111/28C04B2111/40C04B2111/52C04B2201/50C04B2235/96C04B14/022C04B14/08C04B14/104C04B14/18C04B38/0074
Inventor 邱连旺
Owner 邱连旺
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