CN102795749A - Mechanochemical treatment method and system for sludge - Google Patents
Mechanochemical treatment method and system for sludge Download PDFInfo
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- CN102795749A CN102795749A CN2012103206327A CN201210320632A CN102795749A CN 102795749 A CN102795749 A CN 102795749A CN 2012103206327 A CN2012103206327 A CN 2012103206327A CN 201210320632 A CN201210320632 A CN 201210320632A CN 102795749 A CN102795749 A CN 102795749A
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Abstract
The invention provides a mechanochemical treatment method and a system for sludge. The corresponding system comprises a sludge inlet (2), a mechanochemical main reactor (3), a grinding aid inlet (5) and a gas purification device (7), wherein the sludge inlet (2), the grinding aid inlet (5), a solid-liquid product outlet (6) and a gaseous product outlet (9) are formed on the mechanochemical main reactor (3), and the gaseous product outlet (9) is connected with the gas purification device (7). The mechanochemical treatment method and the system have the characteristics of simple process and low manufacturing cost; in addition, the system employs a closed pipeline and is free from the influence of the external environment, pollutants are degraded under the action of a mechanochemical force in the reaction process, and other secondary pollutants such as dioxin cannot be generated in the whole system, so that the system has a wide application prospect.
Description
Technical field
The present invention relates to a kind of mud mechanochemistry treatment process and system, belong to technical field of sludge treatment.
Background technology
China's town sewage processing power has obtained development fast in recent years, and is seriously backward but sludge treatment is disposed relative WWT, national mud safe handling rate less than 10%.
Owing to receive the restriction of landfill, method for sludge treatment such as agricultural; The sludge incineration technology has obtained development fast in recent years; But the obnoxious flavour that produces in the sludge incineration process; Particularly the pollution of dioxin-like chemical also causes this technology to be difficult to apply, so lacks a kind of sludge treatment technology that meets environmental requirement and can not pollute environment in the prior art.
Summary of the invention
The present invention is for solving the problem that can't meet corresponding environmental demand and can pollute environment that exists in the existing sludge treatment technology, and then a kind of mud mechanochemistry treatment process and system are provided, and the invention provides following technical scheme:
Mud mechanochemistry treatment process comprises:
In the mechanico-chemical reaction device, add grinding aid, make the dewatered sludge in the said mechanico-chemical reaction device carry out mechanico-chemical reaction;
To carry out gas pollutant behind the mechanico-chemical reaction purifies the back through gas-cleaning installation and discharges.
Mud mechanochemistry treatment system; Comprise mud inlet, mechanochemistry main reactor, grinding aid import and gas-cleaning installation; On the mechanochemistry main reactor, be respectively arranged with mud inlet, grinding aid import, the outlet of solid-liquid product and gaseous product outlet, the gaseous product outlet is connected with gas-cleaning installation.
Technical scheme provided by the invention has that technology is simple, the characteristics of low cost of manufacture; And this system adopts closed conduct; Do not receive the influence of external environment; Reaction process receives the effect degradation of contaminant of mechanize educational level, can not produce other secondary pollutants such as Dioxins in the total system, thereby have broad application prospects.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the invention; The accompanying drawing of required use is done to introduce simply in will describing embodiment below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the schematic flow sheet of the mud mechanochemistry treatment process that provides of this embodiment;
Fig. 2 is the structural representation of the mud mechanochemistry treatment system that provides of this embodiment.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Technical scheme provided by the invention is based on the principle of mechanochemistry technology; This technology is meant through means such as shearing, friction, impact, extruding; Condensed matters such as solid, liquid are applied mechanical energy, induce its structure and physicochemical property to change, and induced chemical reaction.Different with the ordinary hot chemical reaction, the power of mechanico-chemical reaction is mechanical energy and non-thermal energy, thus reaction need not high temperature, severe condition such as high pressure can accomplish.Adopt mechanochemistry art breading pollutent, do not need waste material is carried out any special pre-treatment, all one procedure completion in ball mill of mixing of materials, dispersion and reaction, flow process is simple; Under normal temperature and pressure conditions, carry out, do not need severe condition such as HTHP or vacuum, be easy to realize that the capacity of mechanico-chemical reaction device---ball mill is different because of the Pollutant Treatment amount, its unit consumption of energy is little, and processing cost is low, processing efficiency is high, conveniently moving.Below in conjunction with Figure of description the technical scheme that the present invention proposes is elaborated, as shown in Figure 1, corresponding mud mechanochemistry treatment process comprises:
Step 1 is added grinding aid in the mechanico-chemical reaction device, make the dewatered sludge in the said mechanico-chemical reaction device carry out mechanico-chemical reaction.
Concrete, after dewatered sludge is imported mechanical reaction apparatus, a certain amount of grinding aid is added in the mechanico-chemical reaction device, make the dewatered sludge in the mechanico-chemical reaction device carry out mechanico-chemical reaction.Wherein grinding aid can adopt at least a in calcium hydroxide or the nickel hydroxide, and the mechanochemistry main reactor can adopt planetary ball mill formula ball mill or roller milling machine.
Concrete, in the process of carrying out mechanico-chemical reaction, except the solid-liquid product, also have the gas contamination deposits yields.The solid-liquid product can directly be got rid of the mechanico-chemical reaction device and handle accordingly; And gas pollutant could be discharged after need purifying through gas-cleaning installation; In the process of emission gases pollutent; Can the inside of gas-cleaning installation and mechanico-chemical reaction device be adjusted into negative pressure state through induced draft fan and make gas pollutant all enter into gas-cleaning installation to purify, thereby reach purpose free from environmental pollution.
Embodiment of the present invention also provides a kind of mud mechanochemistry treatment system; As shown in Figure 2; Comprise mud inlet 2, mechanochemistry main reactor 3, grinding aid import 5 and gas-cleaning installation 7; On mechanochemistry main reactor 3, be respectively arranged with mud inlet 2, grinding aid import 5, the outlet 6 of solid-liquid product and gaseous product outlet 9, gaseous product outlet 9 is connected with gas-cleaning installation 7.
Further, this system can also comprise travelling belt 1, support 4 and induced draft fan 8, and travelling belt 1 is connected with mud inlet 2, and support 4 is used to regulate the angle that mechanochemistry main reactor 3 and level ground are the 1-5 degree, and induced draft fan 8 is connected with gas-cleaning installation 7.
Concrete; According to the input flow rate of the residence Time Calculation dewatered sludge of the size of mechanico-chemical reaction device 3 and processing, regulate the size of travelling belt 1 travelling speed, travelling belt is connected with mud inlet 2; In mechanochemistry device 3, increase steel ball to certain proportion; Open grinding aid import 5 and add grinding aid, make dewatered sludge amount, steel ball and grinding aid proportional, the rotating speed of regulating mechanico-chemical reaction device 3 begins mechanico-chemical reaction.After reaction is accomplished; Regulate support 4, make mechanico-chemical reaction device 3 and level ground be 1-5 degree angle, open the solid-liquid product and export 6 output-response products; Open gas-cleaning installation 7 simultaneously and purify the gas pollutant that produces in the reaction process; Be furnished with induced draft fan 8 behind the gas-cleaning installation, guarantee that the total system of mechanico-chemical reaction keeps negative pressure, make whole system can not produce Dioxins and other secondary pollution.
The technical scheme that adopts this embodiment to provide; Have that technology is simple, the characteristics of low cost of manufacture; And this system adopts closed conduct, does not receive the influence of external environment, and reaction process receives the effect degradation of contaminant of mechanize educational level; Can not produce other secondary pollutants such as Dioxins in the total system, thereby have broad application prospects.
The above; Be merely the preferable embodiment of the present invention; But protection scope of the present invention is not limited thereto; Any technician who is familiar with the present technique field is in the technical scope that the embodiment of the invention discloses, and the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (9)
1. mud mechanochemistry treatment process is characterized in that, comprising:
In the mechanico-chemical reaction device, add grinding aid, make the dewatered sludge in the said mechanico-chemical reaction device carry out mechanico-chemical reaction;
To carry out gas pollutant behind the mechanico-chemical reaction purifies the back through gas-cleaning installation and discharges.
2. mud mechanochemistry treatment process according to claim 1 is characterized in that, said grinding aid comprises at least a in calcium hydroxide or the nickel hydroxide.
3. mud mechanochemistry treatment process according to claim 1 and 2 is characterized in that, before carrying out mechanico-chemical reaction, through induced draft fan the inside of gas-cleaning installation and mechanico-chemical reaction device is adjusted into negative pressure state.
4. mud mechanochemistry treatment system; Comprise mud inlet (2), mechanochemistry main reactor (3), grinding aid import (5) and gas-cleaning installation (7); It is characterized in that; On mechanochemistry main reactor (3), be respectively arranged with mud inlet (2), grinding aid import (5), solid-liquid product outlet (6) and gaseous product outlet (9), gaseous product outlet (9) is connected with gas-cleaning installation (7).
5. mud mechanochemistry treatment system according to claim 4 is characterized in that this system also comprises travelling belt (1), and travelling belt (1) is connected with mud inlet (2).
6. mud mechanochemistry treatment system according to claim 4 is characterized in that this system also comprises support (4), and support (4) is used to regulate the angle that mechanochemistry main reactor (3) and level ground are the 1-5 degree.
7. mud mechanochemistry treatment system according to claim 4 is characterized in that system also comprises induced draft fan (8), and induced draft fan (8) is connected with gas-cleaning installation (7).
8. mud mechanochemistry treatment system according to claim 4 is characterized in that, mechanochemistry main reactor (3) is planetary ball mill formula ball mill or roller milling machine.
9. mud mechanochemistry treatment system according to claim 8; It is characterized in that; When mechanochemistry main reactor (3) was the roller milling machine, roller milling machine inside was filled with steel ball and has stirring-head, when mechanochemistry main reactor (3) when being in high speed rotating; Make the inner dewatered sludge of mechanochemistry main reactor (3) be in flow state through stirring-head, through the steel ball bump of filling, the mechanical force treatment and disposal dewatered sludge that grinding produces; When mechanochemistry main reactor (3) is planetary ball mill, adjustable planetary ball mill rotating speed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012103206327A CN102795749A (en) | 2012-08-31 | 2012-08-31 | Mechanochemical treatment method and system for sludge |
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| CN2012103206327A CN102795749A (en) | 2012-08-31 | 2012-08-31 | Mechanochemical treatment method and system for sludge |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103848528A (en) * | 2012-12-04 | 2014-06-11 | 株式会社理光 | Fluid purification system |
| CN109824243A (en) * | 2019-03-26 | 2019-05-31 | 盛守祥 | A kind of tandem ball milling sludge dehydration device |
Citations (7)
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|---|---|---|---|---|
| JPH0523697A (en) * | 1991-07-25 | 1993-02-02 | Osaka Gas Eng Kk | Treatment of sludge |
| NL9300364A (en) * | 1993-02-26 | 1994-09-16 | Pelt & Hooykaas | Method for immobilizing particles suspended in water. |
| CN1190383A (en) * | 1995-05-18 | 1998-08-12 | Rdp公司 | Process and apparatus for liquid sludge stabilization |
| JP2005144270A (en) * | 2003-11-12 | 2005-06-09 | Kurita Water Ind Ltd | Method and apparatus for treating dioxins-containing solid matter |
| CN101134633A (en) * | 2007-07-27 | 2008-03-05 | 苏州金桨节能与环保科技有限公司 | Material and method for materialized sludge deweighting process |
| CN102303944A (en) * | 2011-08-22 | 2012-01-04 | 广州普得环保设备有限公司 | Method for re-treating dewatered sludge |
| CN202754882U (en) * | 2012-08-31 | 2013-02-27 | 中持依迪亚（北京）环境研究所有限公司 | Sludge mechanical and chemical treatment system |
-
2012
- 2012-08-31 CN CN2012103206327A patent/CN102795749A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0523697A (en) * | 1991-07-25 | 1993-02-02 | Osaka Gas Eng Kk | Treatment of sludge |
| NL9300364A (en) * | 1993-02-26 | 1994-09-16 | Pelt & Hooykaas | Method for immobilizing particles suspended in water. |
| CN1190383A (en) * | 1995-05-18 | 1998-08-12 | Rdp公司 | Process and apparatus for liquid sludge stabilization |
| JP2005144270A (en) * | 2003-11-12 | 2005-06-09 | Kurita Water Ind Ltd | Method and apparatus for treating dioxins-containing solid matter |
| CN101134633A (en) * | 2007-07-27 | 2008-03-05 | 苏州金桨节能与环保科技有限公司 | Material and method for materialized sludge deweighting process |
| CN102303944A (en) * | 2011-08-22 | 2012-01-04 | 广州普得环保设备有限公司 | Method for re-treating dewatered sludge |
| CN202754882U (en) * | 2012-08-31 | 2013-02-27 | 中持依迪亚（北京）环境研究所有限公司 | Sludge mechanical and chemical treatment system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103848528A (en) * | 2012-12-04 | 2014-06-11 | 株式会社理光 | Fluid purification system |
| CN103848528B (en) * | 2012-12-04 | 2015-12-09 | 株式会社理光 | Fliod fluid decontamination system |
| CN109824243A (en) * | 2019-03-26 | 2019-05-31 | 盛守祥 | A kind of tandem ball milling sludge dehydration device |
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Application publication date: 20121128 |