阅读说明：本技术 利用工业废渣污泥生产的新型钢渣粉及其处理方法 (Utilize the Novel steel ground-slag and its processing method of the production of industrial residue sludge ) 是由 谭纪林 华建军 华玉海 曹敏 谭伟 牛成 张会明 陈阳 徐学成 于 2018-05-25 设计创作，主要内容包括：本发明涉及利用工业废渣污泥生产的新型钢渣粉,按质量百分比计由如下物质组成：污泥80%,钢渣20%。本发明还涉及利用工业废渣污泥生产的新型钢渣粉的处理方法。本发明将烘干后的污泥和钢渣一起混合粉磨成细粉,提高台时产量70%,节电60%,能大量使用污泥、节约土地资源、解决了环境污染问题,节约了成本,提高了钢渣粉质量在水泥产品、混凝土中的应用质量。用本发明产品替代部分水泥使用时,具有需水量小,流动性大,相容性大,耐磨性能好,强度高等特点。本发明制得的新型钢渣粉用于混凝土中,具有用水量少,坍落度损失小,减少减水剂的用量,抗冻性能好,抗碳化能力强,抗氯离子渗透性强,强度高,成本低等特点。(The Novel steel ground-slag that the present invention relates to the use of the production of industrial residue sludge, by mass percentage by following material composition: sludge 80%, steel slag 20%.The invention further relates to the processing methods of the Novel steel ground-slag using the production of industrial residue sludge.The present invention by after drying sludge and steel slag be mixed together grinding into fine powder, improve unit-hour output 70%, economize on electricity 60%, can largely using sludge, economize the land resource, solve problem of environmental pollution, cost has been saved, application quality of the steel-making slag powder quality in cement products, concrete is improved.With product of the present invention replacing partial cement in use, having water requirement small, the features such as mobility is big, and compatibility is big, and wear-resisting property is good, and intensity is high.The features such as Novel steel ground-slag produced by the present invention is for having water consumption few in concrete, and little loss of slump reduces the dosage of water-reducing agent, and good frost resistance, resisting carbonization is strong, and resistance of chloride ion penetration is strong, and intensity is high, at low cost.)

1. utilizing the Novel steel ground-slag of industrial residue sludge production, which is characterized in that by mass percentage by following substance group At: sludge 80%, steel slag 20%.

2. Novel steel ground-slag according to claim 1, which is characterized in that the sludge is handled for sewage plant during sewage One or more of the domestic sludge of discharge, printing and dyeing sludge, paper mill sludge, medicine company sludge, chemical engineering sludge.

3. the processing method of the Novel steel ground-slag according to claim 1 or 2 using the production of industrial residue sludge, feature It is to include the following steps:

1) raw material is selected and matched: sludge is by mass percentage 80%, and steel slag is 20% by mass percentage；The sludge In domestic sludge, printing and dyeing sludge, paper mill sludge, medicine company sludge, chemical engineering sludge for discharge during sewage plant processing sewage One or more, the steel slag are that 1500 degree of steel mill or more makes steel the waste residue steel slag being discharged in materials process；

2) dewatered drying: sludge is sent directly into drying kiln and is dried；

3) grinding is at fine powder: by after drying sludge and steel slag be mixed together grinding into fine powder to get to Novel steel ground-slag.

4. processing method according to claim 3, which is characterized in that the drying temperature in step 2 is 300 degree.

5. processing method according to claim 3 or 4, which is characterized in that the specific grain surface product of fine powder is in step 3) 450-550m²/kg。

6. processing method according to claim 5, which is characterized in that the Novel steel ground-slag meets following technical indicator: Density (kg/cm³) >=2.7, specific surface area (㎡/kg) >=450-550, water content (mass fraction) %≤1.0, chloride ion content (mass fraction) %≤0.06, sulfur trioxide content (mass fraction) %≤4.0, loss on ignition (mass fraction) %≤3.0；Activity refers to Number 7 days >=95,28 days >=105, E95 grade of %:E105 grade, 7 days >=75,28 days >=95, E85 grade 7 days >=65,28 days >=85, flowing For degree than % >=95, stability qualification is boiled in boiling, and radioactivity is qualified.

Technical field

The invention belongs to building material environment protection fields, and in particular to a kind of novel steel slag produced using industrial residue sludge Powder and its processing method.

Background technique

The processing of sludge is one of world today's subject study, and sludge contains a large amount of organic composition, containing various micro- Secondary element containing small part heavy metal component, and contains microbial pathogens and helminth containing 60% moisture.And mesh There are 2.6 hundred million tons of sludge discharges in preceding China every year, and sludge of the utilization rate less than 10%, 90% is stacked and filled by a large amount of soil, Serious secondary pollution is caused to environment.Therefore, how sludge to be carried out it is innoxious, minimizing processing research it is extremely urgent.

The formation of steel slag at present is with the waste residue that 1500 degree or more of temperature produces Steel material and is discharged, referred to as steel slag.Steel This material of slag is very rigid and difficult grinding, and utilization rate is also very low, and steel mill produces steel-making slag powder using only steel slag, not only Low output, and power consumption is high.

Summary of the invention

The purpose of the present invention is to solve how largely to use the problem of sludge, solve steel-making slag powder to be difficult to grinding and increasing Power-up consumption the technical issues of, protect the environment from pollution, provide it is a kind of using industrial residue sludge production Novel steel ground-slag and Its processing method.

The specific technical solution of the present invention is as follows:

The Novel steel ground-slag produced using industrial residue sludge, by mass percentage by following material composition: sludge 80%, steel slag 20%.

Preferably, the sludge is that sewage plant handles the domestic sludge being discharged during sewage, printing and dyeing sludge, papermaking dirt One or more of mud, medicine company sludge, chemical engineering sludge.

The invention further relates to the processing methods of the Novel steel ground-slag using the production of industrial residue sludge, include the following steps:

1) raw material is selected and matched: sludge is by mass percentage 80%, and steel slag is 20% by mass percentage；Institute Stating sludge is that sewage plant handles the domestic sludge being discharged during sewage, printing and dyeing sludge, paper mill sludge, medicine company sludge, chemical industry dirt One or more of mud, the steel slag are that 1500 degree of steel mill or more makes steel the waste residue steel slag being discharged in materials process；

2) dewatered drying: sludge is sent directly into drying kiln and is dried；

3) grinding is at fine powder: by after drying sludge and steel slag be mixed together grinding into fine powder to get to Novel steel ground-slag.

Preferably, the drying temperature in step 2) is 300 degree；Sludge drying temperature is low, and be utilized in sludge has one in itself Quantitative thermal energy dries itself, reduces energy consumption.

Preferably, the specific grain surface product of fine powder is 450-550m in step 3)²/kg。

Preferably, the Novel steel ground-slag meets following technical indicator: density (kg/cm³) >=2.7, specific surface area (㎡/ Kg) >=450-550, water content (mass fraction) %≤1.0, chloride ion content (mass fraction) %≤0.06, sulfur trioxide contain Measure (mass fraction) %≤4.0, loss on ignition (mass fraction) %≤3.0；Activity index %:E105 grade 7 days >=95,28 days >= Stability conjunction is boiled in 105, E95 grade 7 days >=75,28 days >=95, E85 grade 7 days >=65,28 days >=85, fluidity ratio % >=95, boiling Lattice, radioactivity are qualified.

The present invention replaces part steel slag to produce steel-making slag powder using microelement, organic composition contained in sludge etc., Once sludge and steel slag contact, just surface and dissolution contact surface between form electric double layer, be in steel slag particle surface just by Counter ions pulling force in dissolution, the direction of this pulling force are just directed to dissolve.It is drawing as a result, sludge and steel slag particle surface ion It is just further combined with dissolution intermediate ion, forms new hydrated minerals.Corrode steel using the ion of effective component in sludge Binding force just substantially reduces between solid impurity particle, its inner ion, and here it is sludge and steel slag during mutual aquation carries out, surface Sheath migrates off, the constantly outside diffusion mobility of inner ion；As a result allowing for steel slag particle becomes loose, it is easy to by powder Wear into fine powder.So we substitute steel slag production steel-making slag powder in part using sludge, both solved a large amount of outlets for using sludge Problem, and solve the technical issues of steel-making slag powder difficulty grinding, to improve steel slag grinding yield, power consumption is reduced, while A kind of new environment-friendly materials are provided for building material product.

Novel steel ground-slag produced by the present invention meets application of the steel-making slag powder in cement, concrete, has excellent work Performance, the heat of hydration are low, have excellent endurance quality, and wear-resisting property, gained concrete compatibility is big, little loss of slump, stream Dynamic property is big, intensity high-tech feature.It can be widely used in industry and civil building engineering construction, mass concrete construction, city Engineering constructions, the products such as city's road, chemical preservation, high-speed rail, tunnel, underwater, dam have a vast market foreground.

Advantages of the present invention:

1, raw material used in production are industrial residue entirely, and are the industrial sludges gathered materials on the spot, and fill waste Divide and is utilized；

2, a large amount of sludge are carried out innoxious, minimizing processing 80% or more by industrial residue sludge dosage in ingredient；

3, the sludge and steel slag of the invention by after drying is mixed together grinding into fine powder, improves unit-hour output 70%, economize on electricity 60%, can largely using sludge, economize the land resource, solve problem of environmental pollution, saved cost, improved steel slag silty Measure the application quality in cement products, concrete.With product of the present invention replacing partial cement in use, having water requirement small, The features such as mobility is big, and compatibility is big, and wear-resisting property is good, and intensity is high.Novel steel ground-slag produced by the present invention is used in concrete, Few with water consumption, little loss of slump reduces the dosage of water-reducing agent, and good frost resistance, resisting carbonization is strong, and resisting chloride ion penetration seeps The features such as permeability is strong, and intensity is high, at low cost.

Specific embodiment

The present invention will be further described with reference to embodiments, and the present invention does not refer to that part is the prior art.