阅读说明：本技术 一种物理化学双生作用水泥缓凝增强剂 (cement retarding and reinforcing agents with physical and chemical double action ) 是由 李红祥 于 2018-07-18 设计创作，主要内容包括：本发明公开了一种物理化学双生作用水泥缓凝增强剂,包括具体步骤如下：步骤一：将工厂湿法生产磷酸时排放的工业废渣回收,通过水洗净化或石灰中和进行预处理,进而消除可溶磷,再对其进行煅烧,得到煅烧磷石膏；步骤二：将工厂甘蔗制糖中分离出的废蜜进行回收,且对其进行过滤,再统一存放以备用；步骤三：将步骤一得到的煅烧磷石膏和丙二醇、葡萄糖酸钠、硫酸盐与石墨送入气流粉碎机进行细化粉碎,得到超细复合粉末,再通过布袋收集器进行收集,以待备用。可使新拌混凝土较长时间保持塑性,方便浇筑,提高施工效率,同时可以提高混凝土后期的强度,满足施工需要,使混凝土经久耐用。(The invention discloses cement retarding and reinforcing agents with physical and chemical double-growth effects, which comprises the following specific steps of step , recovering industrial waste residues discharged in the process of producing phosphoric acid by a wet method in a factory, carrying out water washing purification or lime neutralization pretreatment to further eliminate soluble phosphorus, and then calcining the soluble phosphorus to obtain calcined phosphogypsum, step two, recovering waste honey separated from sugar production of sugarcane in the factory, filtering the waste honey, and storing the waste honey in a system for later use, step three, sending the calcined phosphogypsum obtained in step , propylene glycol, sodium gluconate, sulfate and graphite into a jet mill for refining and crushing to obtain superfine composite powder, and collecting the superfine composite powder by a cloth bag collector for later use.)

1, kinds of physical and chemical cement retarding and reinforcing agents with double biological effects, which are prepared from the following materials in parts by weight:

5-7 parts of phosphogypsum, 10-12 parts of waste honey, 1-2.5 parts of propylene glycol, 12-17 parts of sodium gluconate, 10-14.5 parts of sulfate, 0.5-2 parts of graphite and 42.5-45 parts of water.

The method comprises the following specific steps:

and , recovering industrial waste residues discharged in the wet-process phosphoric acid production of a factory, carrying out water washing purification or lime neutralization pretreatment to eliminate soluble phosphorus, and calcining to obtain the calcined phosphogypsum.

And step two, recovering waste honey separated from sugar production of sugarcane in factories, filtering the waste honey, and storing the waste honey in a system for later use.

And step three, feeding the calcined phosphogypsum obtained in the step , propylene glycol, sodium gluconate, sulfate and graphite into a jet mill for refining and crushing to obtain superfine composite powder, and collecting by a cloth bag collector for later use.

Step four: and (4) feeding the superfine composite powder obtained in the step three into a reaction kettle, sequentially adding water and the waste honey obtained in the step two and the superfine composite powder, and mixing and stirring at high temperature to obtain the composite liquid cement retarding and reinforcing agent.

Step five: and (4) grinding the neutral or alkaline slag in an open-circuit ball mill, and adding the compound liquid cement retarding and reinforcing agent obtained in the step four in the grinding process to obtain cement powder.

Step six: and D, utilizing a submicron microscope to detect the size of the cement powder particles obtained in the step five, and collecting and storing the qualified cement powder particles.

2. The kinds of physico-chemical double acting cement set retarding and reinforcing agents as claimed in claim 1, wherein the calcination temperature of step is 728 ℃ -732 ℃.

3. The kinds of cement retarding and reinforcing agents with physicochemical double effects according to claim 1, wherein the heating temperature in the fourth step is 40-60 ℃, and the heating and stirring time is 1.5-2 h.

4. The kinds of cement retarding and reinforcing agents with physical and chemical double action according to claim 1, wherein the amount of the composite liquid cement retarding and reinforcing agent added in the fourth step is 0.01% -0.04%.

5. The cement retarding reinforcing agents with physical and chemical double acting functions according to claim 1, wherein the specific surface area of the powder obtained in the fourth step is from 500 square meters per kilogram to 550 square meters per kilogram, and the granularity is from 27 to 40 micrometers.

Technical Field

The invention belongs to the technical field of cement processing, and particularly relates to cement retarding and reinforcing agents with physical and chemical double action.

Background

The conventional cement retarding reinforcing agent has poor retarding effect and reinforcing effect, a common ball mill is mostly adopted, the power consumption is high, in order to reduce the power consumption, coal ash is added into slag for grinding, and as a result, the yield is improved, the quality activity is reduced, and the use strength of mineral powder is reduced.

Disclosure of Invention

The invention aims to provide cement retarding and reinforcing agents with physical and chemical twinning effects, and aims to solve the problems that the conventional cement retarding and reinforcing agents in the background art are poor in retarding and reinforcing effects, a common ball mill is mostly adopted, electricity consumption is high, coal ash is added into slag to aid grinding in order to reduce electricity consumption, and as a result, the yield is improved, the quality activity is reduced, and the use strength of mineral powder is reduced.

In order to realize the purpose, the invention provides the following technical scheme that kinds of physical and chemical double-acting cement retarding and reinforcing agents are prepared from the following materials in parts by weight:

5-7 parts of phosphogypsum, 10-12 parts of waste honey, 1-2.5 parts of propylene glycol, 12-17 parts of sodium gluconate, 10-14.5 parts of sulfate, 0.5-2 parts of graphite and 42.5-45 parts of water.

The method comprises the following specific steps:

and , recovering industrial waste residues discharged in the wet-process phosphoric acid production of a factory, carrying out water washing purification or lime neutralization pretreatment to eliminate soluble phosphorus, and calcining to obtain the calcined phosphogypsum.

And step two, recovering waste honey separated from sugar production of sugarcane in factories, filtering the waste honey, and storing the waste honey in a system for later use.

And step three, feeding the calcined phosphogypsum obtained in the step , propylene glycol, sodium gluconate, sulfate and graphite into a jet mill for refining and crushing to obtain superfine composite powder, and collecting by a cloth bag collector for later use.

Step four: and (4) feeding the superfine composite powder obtained in the step three into a reaction kettle, sequentially adding water and the waste honey obtained in the step two and the superfine composite powder, and mixing and stirring at high temperature to obtain the composite liquid cement retarding and reinforcing agent.

Step five: and (4) grinding the neutral or alkaline slag in an open-circuit ball mill, and adding the compound liquid cement retarding and reinforcing agent obtained in the step four in the grinding process to obtain cement powder.

Step six: and D, utilizing a submicron microscope to detect the size of the cement powder particles obtained in the step five, and collecting and storing the qualified cement powder particles.

Further , the calcination temperature of step is 728 ℃ to 732 ℃.

And , heating the mixture in the fourth step at 40-60 ℃ for 1.5-2 h.

, wherein the addition amount of the composite liquid cement retarding and reinforcing agent in the fourth step is 0.01-0.04%.

And steps, wherein the specific surface area of the powder obtained in the fourth step is from 500 square meters per kilogram to 550 square meters per kilogram, and the granularity is from 27 to 40 micrometers.

Compared with the prior art, the invention has the beneficial effects that additives are developed according to the production needs of the special-purpose retarded cement, and the additives can delay the hydration reaction of the cement, so that the cement and the products (mortar or concrete) thereof reach the expected setting time, the freshly mixed concrete keeps plasticity for a long time, the pouring is convenient, the construction efficiency is improved, meanwhile, the later-stage strength of the concrete can be improved, the construction needs are met, and the concrete is durable.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only partial embodiments of of the present invention, rather than all embodiments.