CN1121060A - Production method of artificial porous stone - Google Patents
Production method of artificial porous stone Download PDFInfo
- Publication number
- CN1121060A CN1121060A CN 94116966 CN94116966A CN1121060A CN 1121060 A CN1121060 A CN 1121060A CN 94116966 CN94116966 CN 94116966 CN 94116966 A CN94116966 A CN 94116966A CN 1121060 A CN1121060 A CN 1121060A
- Authority
- CN
- China
- Prior art keywords
- foam
- cylindrical shell
- distribution plate
- air distribution
- rostone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/10—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The artificial porous stone as filtering material is produced with clay as main raw material and through the processes of adding foam from a foam generator, stirring, moulding, stoving and roasting. It is used in treating sewage and water solution containing methylene blue from pharmaceutical factory with high effect.
Description
The invention belongs to a kind of manufacture method of porous rostone filtrate.
With cement is the porous rostone (foam or air entrained cement building block etc.) of raw material, only be applied to building trade at present, this rostone is divided into smaller particles does filtrate, also can be used for water treatment, but the cost of material of this class porous rostone is more expensive, manufacturing process is complicated, and unsuitable repeated regeneration etc.
The foaming process that adds that uses is produced the porous rostone at present, is to obtain foam or use special agitator to produce foamy by the solution that stirs tensio-active agent tempestuously.Foam generation when relying on paddling process to produce foam is subjected to the restriction of agitator speed, and the foamy size is wayward etc.
The objective of the invention is to provide a kind of porous rostone filtrate that can be used for water treatment.When disposing of sewage, can remove the colourity and the COD composition of decontaminated water.
It is raw material that the present invention is achieved in that with the clay, produces foam with foam-making apparatus, foam is added in the mud that stirs evenly with an amount of water, after continuing to stir in the injection model, again through toasting, dry, promptly getting the porous rostone after the roasting.This rostone has and the similar vesicular structure of honeycombed cement building block, have bigger upper layer, but productive expense is than latter considerably cheaper.It can be used as the filtrate of sewage disposal and can remove the colourity and the COD composition of sewage.This rostone has certain mechanical strength, and resistance is little, the energy repeated regeneration, thereby can simplify sewage treatment process and the expense of saving sewage disposal.
During with artificial masonry filtrate, purging method is identical with the reclaimed sand filtrate, but rostone filtrate capacity is little than sandstone, and hydraulic pressure used during flushing can reduce.When being used to handle the bigger sewage of colourity, hour promptly renewable in 40 fens kind～1 of 500 ℃ of left and right sides roasting temperatures.
Accompanying drawing: the foam-making apparatus structure iron that present method is used.
It comprises a garden column foam-making apparatus (such as accompanying drawing) that the present invention uses Cylindrical shell (1) places the foam tank (2) on cylindrical shell (1) top and the bubble on foam tank (2) right side Foam outlet (3), three perforated panels 4 and bottom in the middle of being installed in the cylindrical shell are horn-like Cloth in gas feed (5) and the big mouth side makes plate (6), cylindrical shell (1) left side and bottom Be respectively equipped with the compositions such as liquid-inlet (7) and liquid outlet (8). This device is used Cloth makes plate be formed by titanium dioxide powder sintering, and its porosity is 30～60%, average aperture is (3～15) micron, and this cloth makes the plate mechanical strength Good, clean easily.
The present invention adopts lauryl sodium sulfate as the surface-active that produces foam Agent adds an amount of foam stabilizer in case of necessity.
The used foam-making apparatus of the present invention is simple to operate, works as dodecyl sulphate Sodium solution flows in the tube from import (7), and (general employing compression is empty to open source of the gas Gas), big or small homogeneous, stable foam can produce. The generating capacity of foam can lead to Overcurrent is so the sodium dodecyl sulfate solution concentration in the tube is next with the flow that passes into gas Control. Not moving equipment in this device, it is compared with paddling process, has the operation letter Single, convenient management, foam generation and Air Bubble Size are easy to the advantages such as control.
Below in conjunction with specific examples in detail embodiments of the invention are described in detail:
With plasticity index is the oven dry of 15～19 clay, be milled into the fine powder foam, the water that adds 30～40% (weight ratios) earlier, stir and tremble evenly, add the foam of 8～13% (weight ratios) again, be injected in the grooving tool after continuing to stir, under 60 ℃～80 ℃ temperature, toasted 2～3 hours, allow it dry naturally again, form removal is gone into kiln and was being fused under 900 ℃～950 ℃ the temperature about about 1 hour then, is divided into the particle of required size after the kiln discharge cooling as required.The popular confidence performance of this rostone is as follows:
1, density: vacuum density 1.6～1.7g/cm
3
Capacity 1.1～1.2g/cm
3
2, ultimate compression strength (thick 4cm); 3～4kg/cm
3
3, voidage 25～30%
The effect of disposing of sewage with the rostone filtrate of manufacturing of the present invention can prove with following embodiment:
1, treatment of pharmacy factory effluent sewerage:
Raw waste water water quality: PH:6.5 (potential of hydrogen), chemical oxygen demand COD
Cr: 400mg/L, ss suspended solid: 80mg/L, look is brown, and colourity (extension rate) is 30 times.(the filter material equivalent diameter is 0.2～3.0cm), and the residence time is 40 minutes COD in handling cylindrical shell with the rostone media filtration
CrClearance is 50%, and the SS clearance is 75%, and chroma removal rate is 60%.
2, handle aqueous solution of methylene blue
Former colority of water (extension rate) is 50 times.Handled 30 minutes with the rostone filtrate, effluent color dilution (extension rate) is 25 times, chroma removal rate S0%.
3, the test of the treatment effect behind the media regeneration
Rostone behind the coloured sewage of processing is dried, fused under the temperature about 500 ℃ 40 minutes, be used further to handle the aqueous solution of methylene blue of example 2 after the cooling, treatment condition are with example 2, and effluent color dilution (extension rate) is 24 times, and chroma removal rate reaches 52%.
Claims (5)
1, a kind of porous rostone manufacture method that can be used for water treatment is characterized in that, is raw material with the clay, adds foam, after stirring, injection model, through toast, dry, roasting promptly.
2, a kind of foam-making apparatus that is used for claim 1 method, it is characterized in that: comprise cylindrical barrel body (1), place the foam chute (2) on cylindrical shell (1) top and the foam outlet (3) on foam chute right side, be installed on the air distribution plate (6) in interior bottom bell mouth shape gas feed (5) of interior three perforated panels of intermediary (4) cylindrical shell of cylindrical shell and the big mouth side, cylindrical shell (1) left side and bottom are respectively equipped with liquid-inlet (7) liquid exit (8).
3, foam-making apparatus according to claim 2 is characterized in that, air distribution plate (6) is made by titanium dioxide powder.
4, device according to claim 3 is characterized in that the porosity on the air distribution plate (6) is 30～60%.
5, device according to claim 3 is characterized in that aperture average out to 3～15 μ m on the air distribution plate (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94116966 CN1121060A (en) | 1994-10-19 | 1994-10-19 | Production method of artificial porous stone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94116966 CN1121060A (en) | 1994-10-19 | 1994-10-19 | Production method of artificial porous stone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1121060A true CN1121060A (en) | 1996-04-24 |
Family
ID=5038188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94116966 Pending CN1121060A (en) | 1994-10-19 | 1994-10-19 | Production method of artificial porous stone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1121060A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100395216C (en) * | 2003-01-15 | 2008-06-18 | 海希尔股份有限公司 | Cement products |
-
1994
- 1994-10-19 CN CN 94116966 patent/CN1121060A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100395216C (en) * | 2003-01-15 | 2008-06-18 | 海希尔股份有限公司 | Cement products |
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| PB01 | Publication |