CN102350135A - Production method of pearlite filter element - Google Patents
Production method of pearlite filter element Download PDFInfo
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- CN102350135A CN102350135A CN2011102257083A CN201110225708A CN102350135A CN 102350135 A CN102350135 A CN 102350135A CN 2011102257083 A CN2011102257083 A CN 2011102257083A CN 201110225708 A CN201110225708 A CN 201110225708A CN 102350135 A CN102350135 A CN 102350135A
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Abstract
The invention relates to a production method of a pearlite filter element. The production method comprises the following steps of crushing pearlite raw ore, sintering at a high temperature, grinding, screening, mixing with kaolin, carrying out injection mold and knockout, carrying out sintering in a tunnel furnace, carrying out finish machining, and carrying out examination and warehousing. The production method of the pearlite filter element has the advantages that processing steps are less; construction is simple; two inorganic mineral matters of pearlite and kaolin are utilized as main materials of the pearlite filter element so that costs are low and the purposes of environmental protection and health are realized; pearlite can produce high void fraction in pearlite filter cake forming and there are a large amount of capillary interstices among particles so that the pearlite filter element can catch ultramicro particles having sizes below 1 micrometer and ideal filtration effects are obtained; and the pearlite filter element obtained by the production method does not contain any organic matter, has heavy metal ion content of 0.005ppm and is subjected to disinfection in high-temperature sintering and thus the pearlite filter element can be utilized for food filtration, especially, is suitable for drinking water filtration, and can replace an organic polymer material filter element commonly adopted by the existing household water dispenser.
Description
Technical field
The present invention relates to a kind of production method of perlite filter core
Background technology
perlite is that the acidic lava warp of volcanic eruption sharply cools off the glassy rock that forms, and gains the name because of it has the pearl fissured structure.Perlitic main component is potassium, sodium and aluminosilicate; Its particle is the irregular sheet that circumnutates; Voidage is very high; There are many pores to communicate between each particle; Therefore perlite is widely used in fields such as filtering agent, catalyst, molecular sieve and insulation material, also the carrier of Chang Zuowei rubber, chemical fertilizer and agricultural chemicals etc.
Employed filter core generally all is to be made up of PP (polypropylene) filter housing and the active carbon that is filled in the PP filter housing in
present household drinker; This filter core uses difficult degradation, non-renewable organic polymer PP material as filter housing or filter membrane; Not environmental protection on the one hand, cost of manufacture is also higher on the other hand.Along with the enhancing of people's environmental consciousness, select the renewable environment-friendly materials of suitable cheapness to substitute the organic material in the existing filter core, process environment protection health drinking water filter core efficiently, be the problem that research and development and technical staff earnestly seek.Perlite is the nonmetal mineral of natural inorganic, and is nontoxic, and its special grain structure makes that also it is to select as the ideal of filtering material
Summary of the invention
technical problem to be solved by this invention is to overcome not environmental protection of filter core use high-molecular organic material and the high problem of cost of manufacture in the prior art, and a kind of production method of perlite filter core is provided.
another object of the present invention provides a kind of perlite filter core of producing with aforementioned production method.
For solving above technical problem, the present invention takes following technical scheme:
A kind of production method of perlite filter core may further comprise the steps:
(1) raw ore is pulverized: gather crude pearlite, crude pearlite is sent into pulverizer pulverize, obtain the perlite powder of particle diameter between 0.05 ~ 0.2 millimeter;
(2) high-temperature firing: the perlite powder of step (1) gained is carried out high-temperature firing under 800 ~ 1000 ℃, perlite powder is expanded;
(3) grind: the perlite powder that will pass through step (2) is sent into grinder and is ground to particle diameter＜0.01 millimeter;
(4) screening: the perlite powder to through step (3) sieves, and gets the perlite powder of particle diameter between 0.001 ~ 0.01 millimeter;
(5) mix kaolin: the perlite powder of step (4) gained is mixed with kaolin, and wherein kaolin accounts for 10 ~ 50% of mixture total weight amount, add then water with mixture with become perlite mud;
(6) injection molding is beaten embryo: step (5) gained perlite mud is injected the filter core mould, and fixedly moulding and oven dry obtain perlite filter core embryo;
(7) tunnel kiln sintering: make step (6) gained perlite filter core embryo carry out sintering with constant speed through having the interval tunnel cave of continuous transformation temperature, the variations in temperature in from entrance point to port of export tunnel cave is normal temperature-1200 ℃-normal temperature;
(8) fine finishining and check warehouse-in: the perlite filter core embryo to through step (7) carries out surface finish, test package and warehouse-in, promptly gets said perlite filter core finished product.
preferably, bake out temperature is 70 ~ 80 ℃ in the step (6).
preferably, the pass through time of perlite filter core embryo in tunnel cave is 1 ~ 6 hour in the step (7).
can produce the perlite filter core of various difformities and different size according to aforementioned production method, and perlite filter core of the present invention are particularly suitable for being applied to the drinking water filtration art through making different filter core moulds.
Because the enforcement of above technical scheme, the present invention compared with prior art has following advantage:
The production method step of
perlite filter core of the present invention is simple, and easy construction is better through perlite filter core environment protection health, filter effect that production method of the present invention is produced, and cost of manufacture is lower.
Description of drawings
Below in conjunction with accompanying drawing and concrete embodiment the present invention is done further detailed explanation:
Fig. 1 is the production method flow chart of perlite filter core of the present invention;
Fig. 2 is a prepared filter core perspective view among the embodiment 1.
The specific embodiment
are done further detailed explanation below in conjunction with concrete embodiment to the present invention, but are not limited to these embodiment.
Embodiment 1
With reference to Fig. 1 and 2, the perlite filter core of present embodiment is a tubular, and through the time processing moulding, its concrete manufacturing process is following by perlite and a certain proportion of kaolin for whole filter core:
(1) raw ore is pulverized: crude pearlite is solid-state shaly ore, and unification is sent the crude pearlite of gathering into pulverizer and pulverized by mining site collection and concentrated depositing, and obtains the perlite powder of particle diameter between 0.05 ~ 0.2 millimeter;
(2) high-temperature firing: the perlite powder of step (1) gained is carried out high-temperature firing under 800 ~ 1000 ℃, perlite powder is expanded;
(3) grind: will pass through step (2) and fire perlite powder after the expansion and send into grinder and grind, until particle diameter＜0.01 millimeter;
(4) screening: the perlite powder to through step (3) sieves, and it is subsequent use to get the perlite powder of particle diameter between 0.001 ~ 0.01 millimeter;
(5) mix kaolin: the perlite powder of step (4) gained is mixed with kaolin, and wherein the kaolin consumption accounts for 10 ~ 50% of mixture total weight amount, add then water with mixture with become perlite mud; Kaolin plays adhesive effect, and amount ranges has certain limitation, and kaolin filer element strength very little is not enough, then can influence the filter element filtering effect too much;
(6) injection molding is beaten embryo: step (5) gained perlite mud is injected the filter core mould of tubulose, fixedly moulding and place the baking oven under 70 ~ 80 ℃, treat that most of moisture in the perlite mud evaporates after, the removal mould obtains the perlite filter core embryo of tubular;
(7) tunnel kiln sintering: make step (6) gained perlite filter core embryo at the uniform velocity carry out sintering through having the interval tunnel cave of continuous transformation temperature, the variations in temperature in from entrance point to port of export tunnel cave is normal temperature-1200 ℃-normal temperature; The pass through time of perlite filter core embryo in tunnel cave, the filter core embryo should be avoided heating and cooling rapidly at 1 ~ 6 hour, otherwise was prone to because of the excessive defective that produces of interior STRESS VARIATION;
(8) fine finishining and check warehouse-in: by standard-required to the fine finishining of polishing of the surfaces externally and internally of the tubular perlite filter core embryo that passes through step (7); Test then; Choose defective products and faulty materials; At last qualified products are packed warehouse-in, promptly obtain said perlite filter core finished product.
The perlite filter core procedure of processing that
present embodiment is produced is few; Simple to operate; Select for use two kinds of inorganic minerals of perlite and kaolin as filter core master material; Cost is low; Environment protection health, and, form many pores between the particle because perlite has 80% ~ 90% voidage when forming filter cake; Can capture the ultra micro granule below 1 micron during filtration, so filter effect is desirable.In addition; The present embodiment filter core does not contain any organic matter; The content of heavy metal ion is in the 0.005ppm level; Reached the sterilization purpose through high temperature sintering in the production process; Therefore can be used for the filtration of food-grade; Especially be fit to the filtration of drinking water, the high-molecular organic material filter core that alternative present household drinker is commonly used.
More than the present invention has been done detailed description; Its purpose is to allow the personage that is familiar with this art can understand content of the present invention and implements; Can not limit protection scope of the present invention with this; All equivalences of doing according to spirit of the present invention change or modify, and all should be encompassed in protection scope of the present invention
Claims (5)
1. the production method of a perlite filter core is characterized in that: may further comprise the steps:
(1) raw ore is pulverized: gather crude pearlite, crude pearlite is sent into pulverizer pulverize, obtain the perlite powder of particle diameter between 0.05 ~ 0.2 millimeter;
(2) high-temperature firing: the perlite powder of step (1) gained is carried out high-temperature firing under 800 ~ 1000 ℃, perlite powder is expanded;
(3) grind: the perlite powder that will pass through step (2) is sent into grinder and is ground to particle diameter＜0.01 millimeter;
(4) screening: the perlite powder to through step (3) sieves, and gets the perlite powder of particle diameter between 0.001 ~ 0.01 millimeter;
(5) mix kaolin: the perlite powder of step (4) gained is mixed with kaolin, and wherein kaolin accounts for 10 ~ 50% of mixture total weight amount, add then water with mixture with become perlite mud;
(6) injection molding is beaten embryo: step (5) gained perlite mud is injected the filter core mould, and fixedly moulding and oven dry obtain perlite filter core embryo;
(7) tunnel kiln sintering: make step (6) gained perlite filter core embryo carry out sintering with constant speed through having the interval tunnel cave of continuous transformation temperature, the variations in temperature in from entrance point to port of export tunnel cave is normal temperature-1200 ℃-normal temperature;
(8) fine finishining and check warehouse-in: the perlite filter core embryo to through step (7) carries out surface finish, test package and warehouse-in, promptly gets said perlite filter core finished product.
2. the production method of perlite filter core according to claim 1 is characterized in that: bake out temperature is 70 ~ 80 ℃ in the step (6).
3. the production method of perlite filter core according to claim 1 is characterized in that: the pass through time of perlite filter core embryo in tunnel cave is 1 ~ 6 hour in the step (7).
4. perlite filter core, it is characterized in that: said perlite filter core uses production method as claimed in claim 1 to be made.
5. the described perlite filter core of claim 4 is in the application of drinking water filtration art.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110225708 CN102350135B (en) | 2011-08-08 | 2011-08-08 | Production method of pearlite filter element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110225708 CN102350135B (en) | 2011-08-08 | 2011-08-08 | Production method of pearlite filter element |
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| CN102350135A true CN102350135A (en) | 2012-02-15 |
| CN102350135B CN102350135B (en) | 2013-09-18 |
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| CN 201110225708 Expired - Fee Related CN102350135B (en) | 2011-08-08 | 2011-08-08 | Production method of pearlite filter element |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104030661A (en) * | 2014-07-02 | 2014-09-10 | 牛柏然 | Volcanic ceramic article and manufacturing method thereof |
| CN108147837A (en) * | 2018-02-08 | 2018-06-12 | 福建贝迪陶瓷科技有限公司 | A kind of light porous ceramic filter material and preparation method thereof |
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| JPH04190812A (en) * | 1990-11-22 | 1992-07-09 | Nkk Corp | Titanium nitride filter element |
| WO1997029829A1 (en) * | 1996-02-16 | 1997-08-21 | Advanced Minerals Corporation | Composite filtration media |
| EP0640010B1 (en) * | 1991-03-21 | 1999-06-16 | ROLLEN, Jarl-Erik | A passive filter including a self-regenerating composition of materials for sorbation of gaseous substances |
| CN1232004A (en) * | 1999-02-10 | 1999-10-20 | 信阳师范学院 | Method for preparing spheric closed pore expanded perlite, and products thereby |
| CN101164953A (en) * | 2007-09-27 | 2008-04-23 | 信阳师范学院 | Ultra-fine expanded perlite product and preparation method thereof |
| CN101301550A (en) * | 2008-01-29 | 2008-11-12 | 杜建耀 | Carbon crystal compound micropore ceramic filter element and preparation thereof |
| CN101397215A (en) * | 2008-06-23 | 2009-04-01 | 杜建耀 | Diatomaceous micropore ceramic filter cartridge and preparation method thereof |
| CN101417193A (en) * | 2008-11-07 | 2009-04-29 | 江苏正本净化节水科技实业有限公司 | Nano crystallite composite filter material and supplement of manufacture method thereof |
| CN101774684A (en) * | 2010-03-23 | 2010-07-14 | 南京工业大学 | Filter material for water treatment and preparation method and application thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4190812B2 (en) * | 2002-07-05 | 2008-12-03 | 古河電気工業株式会社 | Fiber grating manufacturing method and manufacturing apparatus thereof |
-
2011
- 2011-08-08 CN CN 201110225708 patent/CN102350135B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04190812A (en) * | 1990-11-22 | 1992-07-09 | Nkk Corp | Titanium nitride filter element |
| EP0640010B1 (en) * | 1991-03-21 | 1999-06-16 | ROLLEN, Jarl-Erik | A passive filter including a self-regenerating composition of materials for sorbation of gaseous substances |
| WO1997029829A1 (en) * | 1996-02-16 | 1997-08-21 | Advanced Minerals Corporation | Composite filtration media |
| CN1232004A (en) * | 1999-02-10 | 1999-10-20 | 信阳师范学院 | Method for preparing spheric closed pore expanded perlite, and products thereby |
| CN101164953A (en) * | 2007-09-27 | 2008-04-23 | 信阳师范学院 | Ultra-fine expanded perlite product and preparation method thereof |
| CN101301550A (en) * | 2008-01-29 | 2008-11-12 | 杜建耀 | Carbon crystal compound micropore ceramic filter element and preparation thereof |
| CN101397215A (en) * | 2008-06-23 | 2009-04-01 | 杜建耀 | Diatomaceous micropore ceramic filter cartridge and preparation method thereof |
| CN101417193A (en) * | 2008-11-07 | 2009-04-29 | 江苏正本净化节水科技实业有限公司 | Nano crystallite composite filter material and supplement of manufacture method thereof |
| CN101774684A (en) * | 2010-03-23 | 2010-07-14 | 南京工业大学 | Filter material for water treatment and preparation method and application thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104030661A (en) * | 2014-07-02 | 2014-09-10 | 牛柏然 | Volcanic ceramic article and manufacturing method thereof |
| CN104030661B (en) * | 2014-07-02 | 2016-05-04 | 牛柏然 | Volcanic rock ceramic implement articles for use and preparation method thereof |
| CN108147837A (en) * | 2018-02-08 | 2018-06-12 | 福建贝迪陶瓷科技有限公司 | A kind of light porous ceramic filter material and preparation method thereof |
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| CN102350135B (en) | 2013-09-18 |
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