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Method for preparing tourmaline functional ceramic filter element

A technology of functional ceramics and tourmaline, applied in the field of preparation of tourmaline functional ceramic filter elements, can solve the problems of waste of resources and low utilization rate, and achieve the effect of increasing the contact area

Inactive Publication Date: 2008-10-01
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The invention provides a method for preparing a tourmaline functional ceramic filter element in view of the low utilization rate of tourmaline balls in water purification and waste of resources in the prior art.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Its implementation formula is

[0021] Tourmaline powder 100 parts (1μm)

[0022] Additive sodium tripolyphosphate 10 parts

[0023] 15 parts of water

[0024] After mixing the tourmaline powder additive sodium tripolyphosphate and water according to the above formula, mechanically stir for 30 minutes to make a composite base material, press the prepared composite base material into a sheet in a mold, and make a tourmaline functional ceramic filter element green body; After demoulding, the green body is further dried and sintered at a temperature of 700°C and held for 1 hour. After cooling, a sheet-shaped porous tourmaline filter element is obtained. The filter element has a pore size of 0.2 μm, a porosity of 28%, a diameter of 123 mm, and a thickness of 6 mm.

[0025] The tourmaline ceramic filter element made by this embodiment is an ideal functional ceramic for water treatment. It can not only be used for water filtration, filter out harmful substances such as bact...

Embodiment 2

[0027] Its implementation formula is

[0028] Tourmaline powder 60 parts (6μm)

[0029] Excipients Medical stone 40 parts (10μm)

[0030] Additive sodium silicate 2 parts

[0031] 25 parts of water

[0032] According to the above formula, mix tourmaline powder, auxiliary material medical stone and additive sodium silicate with water, and mechanically stir for 1-4 hours to make a composite base material, and press the prepared composite base material into a tubular shape in a mold to make tourmaline Functional ceramic filter green body; after demoulding, the green body is further dried and sintered at a temperature of 1100°C, holding time for 1 hour, and the tubular porous tourmaline medical stone composite filter element is obtained after cooling.

[0033] Medical stone is named by ancient Chinese medical scientists based on its appearance resembling rice balls cooked from barley rice. It is the earliest natural mineral medicinal stone used in my country. It is a weathered...

Embodiment 3

[0036] Its implementation formula is

[0037] Tourmaline powder 60 parts

[0038] Excipients Zeolite 20 parts

[0039] Additive sodium phosphate 2 parts

[0040] 12 parts of water

[0041] According to the above formula, mix tourmaline powder, auxiliary material zeolite and additive sodium silicate with water, stir mechanically for 1-4 hours to make composite base material, and press the prepared composite base material into a tubular shape in a mold to make tourmaline functional ceramics The green body of the filter element; after demoulding, the green body is further dried and sintered at a temperature of 1200°C, with a holding time of 1 hour, and a tubular porous tourmaline filter element is obtained after cooling.

[0042] Zeolite is a family of hydrous aluminosilicate minerals with framework structure, which is composed of aluminosilicate framework, pores, holes and cations in the framework, and water molecules existing in solid phase. Si in a silicon-oxygen tetrahedr...

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Abstract

The invention discloses a preparation method of a tourmaline functional ceramic filter core, which comprises the steps as follows: (1) 20 to100 parts by weight of the tourmaline, 0 to 80 parts by weight of auxiliary materials, 2 to 20 parts by weight of additive, and 5 to 25 parts by weight of water are mixed and mechanically stirred so as to prepare composite base materials; (2) the composite base materials are pressed and formed in a die so as to prepare the tourmaline functional ceramic filter core green body; (3) the green body is demoulded and dried, sintered under a certain temperature which is preserved, and then cooled so as to prepare the tourmaline functional ceramic filter core. The tourmaline functional ceramic filter core prepared by the method provided by the invention has the functions of filtrating harmful substances such as bacteria and suspended pollutant, etc. just as the porous ceramic filter core has, leads the water to sufficiently contact each tourmaline slit during the filtration process, greatly improves the contact area, and sufficiently makes the effects of the tourmaline, which are beneficial for human body, such as radiating infrared, releasing anion, activating water and generating week alkalescence, etc.

Description

technical field [0001] The invention belongs to the field of inorganic functional materials, in particular to a preparation method of a tourmaline functional ceramic filter element. Background technique [0002] Tourmaline is the earliest piezoelectric and pyroelectric material discovered by human beings. In recent years, research has found that tourmaline has the properties and functions of radiating infrared rays, releasing negative ions, antibacterial, deodorizing, and purifying and improving water. Therefore, tourmaline gradually Become a popular natural mineral functional crystal material. The crystal structure of tourmaline is a trigonal crystal system, that is, a complex trigonal ring composed of silicon-oxygen tetrahedrons. Due to the special crystal structure, two highly charged atoms are arranged in a clear dislocation on the crystal lattice, thus causing one end of the crystal to be positively charged. , the other end is the negative pole of the charge, and elect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D39/20C04B38/00
Inventor 隋贤栋黄肖容
Owner SOUTH CHINA UNIV OF TECH
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