CN103721871A - Environment-friendly cement water-reducing agent sorting system - Google Patents
Environment-friendly cement water-reducing agent sorting system Download PDFInfo
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- CN103721871A CN103721871A CN201310716674.7A CN201310716674A CN103721871A CN 103721871 A CN103721871 A CN 103721871A CN 201310716674 A CN201310716674 A CN 201310716674A CN 103721871 A CN103721871 A CN 103721871A
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Abstract
The invention discloses an environmental cement water-reducing agent sorting system, comprising a high-pressure airflow inlet (6), a coal ash feeding hole (7), a friction charge device (1), a material divider (8), a high-pressure electrostatic separation cavity (3), a positive high-pressure electrode plate (5), a negative high-pressure electrode plate (4), a recovery tube (9) and a vacuum negative pressure port (10), wherein a discharge port of the friction charge device (1) is communicated with the high-pressure electrostatic separation cavity (3) through the material divider (8); a discharge hole of the high-pressure electrostatic separation cavity (3) is divided into three paths, wherein the first path is communicated with the feeding end of a coal grain cyclone separator (11); the second path is communicated with a middling cyclone separator (12); the third path is communicated with a cement water-reducing agent cyclone separator (13); the coal grain cyclone separator (11), the middling cyclone separator (12) and the cement water-reducing agent cyclone separator (13) are respectively connected with a vacuum negative pressure port (10). The environmental cement water-reducing agent sorting system is high in work efficiency and ideal in environment-friendly performance.
Description
Technical field
The invention belongs to construction material production technical field, relate in particular to a kind of environment protecting cement water reducer separation system.
Background technology
Cement concrete means by waters such as cement, sand, stones and mixes the general designation of forming whole engineered composite material.Conventionally concrete one word of saying refers to cement makes Binder Materials, and sand, masonry gather materials; Coordinate by a certain percentage with water (adding or do not add additive and admixture), through stirring, moulding, maintenance and cement concrete, also claim normal concrete, it is widely used in civil engineering.
Conventional cement additive surely belongs to cement water reducing agent, at present, uses maximum water reducers as follows.
1, lignosulfonates: it belongs to common water reducer, its raw material is lignin, generally from coniferous wood, extract, lignin is polymerized by, coniferyl alcohol aromatic to extending, these three kinds of lignin monomers of sinapinic alcohol, for mortar, can improve application property, mobility, improve intensity, water-reducing rate is 5%～10%.
2, naphthalene sulfonate water reducer: naphthalene is by sulfuric acid sulfonation, then with the product that formaldehyde carries out condensation, belong to anionic surfactant.Such water reducer outward appearance can be light yellow to auburn powder depending on the difference of product, and soluble in water, good to many powder body material peptizaitons such as cement, water-reducing rate reaches 25%.
3, melamine based water reducer: melamine is by sulfuric acid sulfonation, then the product that carries out condensation with formaldehyde, thereby chemical name is sulfonated melamine compound resin, belongs to anion surfactant.Such water reducer outward appearance is white powder, soluble in water, and scattered to powder body material, water-reducing rate is high, and its mobility and self-healing are good.
4, powder polycarboxylate: there is excellent water-reducing rate, mobility, permeability.The intensity of obvious reinforced cement mortar, but complex manufacturing technology, price general charged is higher.
5, casein: be a kind of biopolymer, it is that milk precipitates and makes after drum dried with acid.
Flyash, is in the flue gas from coal combustion, to receive the thin ash of catching, and flyash is the main solid waste that coal-burning power plant discharges.The main oxides of power plants flyash consists of: SiO
2, Al
2o
3, FeO, Fe
2o
3, CaO, TiO
2deng.Flyash is one of industrial residue that the current discharge capacity of China is larger, and along with the development of power industry, the flyash discharge capacity of coal-burning power plant increases year by year.A large amount of flyash does not add processing, will produce airborne dust, atmosphere pollution; If enter water system, can cause river to silt up, and toxic chemical substance wherein also can work the mischief to human body and biology.Flyash can be used as concrete admixture in addition.
For a long time, in concrete both domestic and external, be often mixed with a certain amount of flyash, but the substitution material as cement, in following three kinds of modes, apply in most cases: drought period requirement of strength very low, long-term strength is greatly in the mass concrete of 2535MPa, and the place of cement of large volume is used; The place of cement of small amount (10%～25%) in structural concrete; In the very low backfill of requirement of strength or roadbase, use in a large number.Due to the application of high efficiency water reducing agent, concrete water-cement ratio can significantly be reduced, thereby the performance of mixing flyash can significantly be improved.
At present, pulverized fuel ash cement water reducer screening installation exists complex structure, inefficiency, the problem such as seriously polluted.
Summary of the invention
The present invention is intended to overcome the deficiencies in the prior art part and provides a kind of simple in structure, and operating efficiency is high, the environment protecting cement water reducer separation system that environmental protection efficacy is desirable.
For solving the problems of the technologies described above, the present invention realizes like this.
Environment protecting cement water reducer separation system, it comprises high pressure draught entrance, flyash material inlet, friction charged device, tripper, High voltage electrostatic separation chamber, positive high voltage battery lead plate, negative high-voltage electrode plate, recovery tube and negative pressure of vacuum port; The pan feeding port of described friction charged device communicates with high pressure draught entrance and flyash material inlet respectively; The discharging port of described friction charged device communicates with the pan feeding port of High voltage electrostatic separation chamber through tripper; The discharging opening Fen San road of described High voltage electrostatic separation chamber, the first via communicates with the feeding end of coal grain cyclone separator; The second tunnel communicates with the feeding end of chats cyclone separator; Third Road communicates with the feeding end of cement water reducing agent cyclone separator.Coal grain cyclone separator, chats cyclone separator and cement water reducing agent cyclone separator join with negative pressure of vacuum port respectively.
As a kind of preferred version, in friction charged device cavity of the present invention, be fixed with labyrinth type screen.
The present invention is simple in structure, and operating efficiency is high, and environmental protection efficacy is desirable.
Through system experimentation, prove, flyash is carried out can obtaining three kinds of products after triboelectric separator sorting: decarburization ash, middle ash and coal grain.The decarburization ash of low fever's vector has a lot of purposes, can produce various pulverized fuel ash cements as cement admixture.This water reducer is for improving cement quality, and it is all very beneficial reducing cement cost and consuming flyash in a large number.Meanwhile, the decarburization ash of this low fever's vector also can be used for having the flyash water reducer of very high practical value and economic worth, i.e. cement water reducing agent; And the coal dust that sorting flyash obtains can be used as, low-grade fuel is sold or boiler of feeding flashes back.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the invention will be further described.Protection scope of the present invention is not only confined to the statement of following content.
Fig. 1 is overall structure schematic diagram of the present invention.
In figure: 1, friction charged device; 2, labyrinth type screen; 3, High voltage electrostatic separation chamber; 4, negative high-voltage electrode plate; 5, positive high voltage battery lead plate; 6, high pressure draught entrance; 7, flyash material inlet; 8, tripper; 9, recovery tube; 10, negative pressure of vacuum port; 11, coal grain cyclone separator; 12, chats cyclone separator; 13, cement water reducing agent cyclone separator.
The specific embodiment
Shown in Figure 1, this project be take flyash as raw material, make flyash in friction charged device 1, move with friction charged device 1 cavity in screen 2 rub, it is positively charged that coal grain in flyash loses electronics, de-coal ash obtains that an electron is negatively charged lotus, through High voltage electrostatic separation chamber 3, most of positively charged coal grain is under electric field action, to negative high-voltage electrode plate 4, move, most of electronegative de-coal ash moves to positive high voltage battery lead plate 5, and the separated coal-forming grain of flyash, chats (mixture of coal grain and de-coal ash) and de-coal ash are collected respectively.This de-coal ash is the standby cement water reducing agent of this project system.
Native system comprises high pressure draught entrance 6, flyash material inlet 7, friction charged device 1, tripper 8, High voltage electrostatic separation chamber 3, positive high voltage battery lead plate 5, negative high-voltage electrode plate 4, recovery tube 9 and negative pressure of vacuum port one 0 when specific design.The pan feeding port of friction charged device 1 communicates with high pressure draught entrance 6 and flyash material inlet 7 respectively.The discharging port of friction charged device 1 communicates with the pan feeding port of High voltage electrostatic separation chamber 3 through tripper 8.The discharging opening Fen San road of High voltage electrostatic separation chamber 3, the first via communicates with the feeding end of coal grain cyclone separator 11; The second tunnel communicates with the feeding end of chats cyclone separator 12; Third Road communicates with the feeding end of cement water reducing agent cyclone separator 13.Coal grain cyclone separator 11, chats cyclone separator 12 and cement water reducing agent cyclone separator 13 join with negative pressure of vacuum port one 0 respectively.
Flyash enters from flyash material inlet 7, under the effect of the high pressure transportation air-flow passing at high pressure draught entrance 6, flyash moves and screen 2 frictions in the cavity of friction charged device 1, under frictional force effect, because ore particle dielectric constant is different, it is positively charged that coal grain loses electronics, de-coal ash obtains that an electron is negatively charged lotus.After coal grain in flyash and de-coal ash are charged, through tripper 8, enter respectively High voltage electrostatic separation chamber 3.In High voltage electrostatic separation chamber 3, most of positively charged coal grain, under electric field action, moves to negative high-voltage electrode plate 4, and most of electronegative de-coal ash is under electric field action, to positive high voltage battery lead plate 5, move the charged coal grain of small part and the friction charged charged deficiency of de-coal ash.The coal grain sub-electing, chats (mixture of coal grain and de-coal ash) and de-coal ash are through recovery tube 9 separately, under the effect of negative pressure of vacuum port one 0, coal grain, chats and de-coal ash tangentially enter each self-corresponding cyclone separator with certain pressure, in cylindrical cavity, produce High Rotation Speed flow field, after vapor solid separation, target product is finally disposed in hopper.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (2)
1. environment protecting cement water reducer separation system, it is characterized in that, comprise high pressure draught entrance (6), flyash material inlet (7), friction charged device (1), tripper (8), High voltage electrostatic separation chamber (3), positive high voltage battery lead plate (5), negative high-voltage electrode plate (4), recovery tube (9) and negative pressure of vacuum port (10); The pan feeding port of described friction charged device (1) communicates with high pressure draught entrance (6) and flyash material inlet (7) respectively; The discharging port of described friction charged device (1) communicates with the pan feeding port of High voltage electrostatic separation chamber (3) through tripper (8); The discharging opening Fen San road of described High voltage electrostatic separation chamber (3), the first via communicates with the feeding end of coal grain cyclone separator (11); The second tunnel communicates with the feeding end of chats cyclone separator (12); Third Road communicates with the feeding end of cement water reducing agent cyclone separator (13); Coal grain cyclone separator (11), chats cyclone separator (12) and cement water reducing agent cyclone separator (13) join with negative pressure of vacuum port (10) respectively.
2. environment protecting cement water reducer separation system according to claim 1, is characterized in that: in described friction charged device (1) cavity, be fixed with labyrinth type screen (2).
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| CN201310716674.7A CN103721871A (en) | 2013-12-24 | 2013-12-24 | Environment-friendly cement water-reducing agent sorting system |
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| CN201310716674.7A CN103721871A (en) | 2013-12-24 | 2013-12-24 | Environment-friendly cement water-reducing agent sorting system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104941812A (en) * | 2015-07-20 | 2015-09-30 | 中国矿业大学 | Micro-fine particle material friction electric separation method and device adopting lateral negative pressure adsorption |
| CN105149099A (en) * | 2015-07-20 | 2015-12-16 | 中国矿业大学 | Reverse-blowing tribo-electrostatic separation method and device for fly ash decarburization |
| CN105903570A (en) * | 2016-05-20 | 2016-08-31 | 昆明理工大学 | Impact type friction electric separator |
| CN109603971A (en) * | 2018-12-04 | 2019-04-12 | 青海泰宁水泥有限公司 | It is used to prepare the device and method laid bricks with cement grinding aid |
-
2013
- 2013-12-24 CN CN201310716674.7A patent/CN103721871A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104941812A (en) * | 2015-07-20 | 2015-09-30 | 中国矿业大学 | Micro-fine particle material friction electric separation method and device adopting lateral negative pressure adsorption |
| CN105149099A (en) * | 2015-07-20 | 2015-12-16 | 中国矿业大学 | Reverse-blowing tribo-electrostatic separation method and device for fly ash decarburization |
| CN104941812B (en) * | 2015-07-20 | 2017-03-29 | 中国矿业大学 | The fine granule material friction electrical selection method and device of lateral negative-pressure adsorption |
| CN105903570A (en) * | 2016-05-20 | 2016-08-31 | 昆明理工大学 | Impact type friction electric separator |
| CN105903570B (en) * | 2016-05-20 | 2017-08-29 | 昆明理工大学 | A kind of impact type triboelectric separator |
| CN109603971A (en) * | 2018-12-04 | 2019-04-12 | 青海泰宁水泥有限公司 | It is used to prepare the device and method laid bricks with cement grinding aid |
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