阅读说明：本技术 一种退浆废水浓缩液电厂抑尘技术 (A kind of desized wastewater concentrate power plant dust suppression technology ) 是由 宋勇 郭超 艾山·玉素 柳斌 于 2019-09-09 设计创作，主要内容包括：本发明公开了一种退浆废水浓缩液电厂抑尘技术,具体包括以下步骤：S1、退浆废水浓缩液的制备：采用膜蒸馏-超滤二级膜浓缩工艺对退浆废水进行二级膜浓缩,然后静置40-60分钟,即可得到退浆废水浓缩液；S2、反应操作：选取适量步骤S1中制得的退浆废水浓缩液加入干净的反应釜中进行搅拌,采用匀速搅拌的方式进行操作,控制反应釜的搅拌温度为50-65℃,搅拌速率为100-200转/分钟,搅拌时间为30-50份中,使得退浆废水浓缩液可以均匀受热,本发明涉及电厂抑尘技术领域。该退浆废水浓缩液电厂抑尘技术,通过捕捉、吸附、团聚粉尘微粒,将其紧锁于网状结构之内,起到湿润、粘接、凝结、吸湿、防尘、防浸蚀和抗冲刷的作用,具有良好的成膜特性。(The invention discloses a kind of desized wastewater concentrate power plant dust suppression technologies, specifically includes the following steps: the preparation of S1, desized wastewater concentrate: carrying out secondary membrane concentration to desized wastewater using membrane distillation-ultrafiltration secondary membrane concentration technology, it is then allowed to stand 40-60 minutes, desized wastewater concentrate can be obtained；S2, operation: it chooses desized wastewater concentrate obtained in appropriate step S1 and is added in clean reaction kettle and be stirred, it is operated by the way of at the uniform velocity stirring, the whipping temp for controlling reaction kettle is 50-65 DEG C, stirring rate is 100-200 revs/min, mixing time is in 30-50 parts, so that desized wastewater concentrate can be with thermally equivalent, the present invention relates to power plant's dust suppression technology fields.The desized wastewater concentrate power plant dust suppression technology is rigidly fastened within reticular structure by capture, absorption, reunion dust particle, plays the role of wet, bonding, condensation, moisture absorption, dust-proof, anti-etch and antiscour, has good film forming characteristics.)

1. a kind of desized wastewater concentrate power plant dust suppression technology, it is characterised in that: specifically includes the following steps:

The preparation of S1, desized wastewater concentrate: secondary membrane is carried out to desized wastewater using membrane distillation-ultrafiltration secondary membrane concentration technology Concentration, is then allowed to stand 40-60 minutes, desized wastewater concentrate can be obtained；

S2, operation: it chooses desized wastewater concentrate obtained in appropriate step S1 and is added in clean reaction kettle and stirred It mixes, is operated by the way of at the uniform velocity stirring, the whipping temp for controlling reaction kettle is 50-65 DEG C, stirring rate 100-200 Rev/min, mixing time is in 30-50 parts, so that then desized wastewater concentrate can choose suitable 1% with thermally equivalent PAC aqueous solution and 30% acrylic acid solution be respectively placed in the dropping funel of reaction kettle, rate of addition is controlled, so that 1% PAC aqueous solution, acrylic acid can add simultaneously, and time for adding was controlled at 2-3 hours, and then reaction kettle heats up, will be anti- It answers kettle to be warming up to 65-70 DEG C, continues to be stirred raw material, the mixing time reaction time is 1.5 hours, stirring rate 100- 200 revs/min, obtain the mixture of desized wastewater concentrate dust suppressant；

The preparation of S3, desized wastewater concentrate dust suppressant: use PH regulator by solution PH tune after reaction solution is cooled to room temperature Section obtains desized wastewater concentrate dust suppressant to 7.0-8.0.

2. a kind of desized wastewater concentrate power plant according to claim 1 dust suppression technology, it is characterised in that: the step S2 Weight ratio part of middle desized wastewater concentrate be added is 30-50 parts, and weight ratio part of described 1% PAC aqueous solution is 20- 30 parts, weight ratio part of 30% acrylic acid solution is 15-25 parts.

3. a kind of desized wastewater concentrate power plant according to claim 1 dust suppression technology, it is characterised in that: the step S3 The mass ratio of the material of middle PH regulator each component are as follows: neutralizing amine 15~30%, sodium pyrosulfite 10~20%, deionized water 50~ 75%, the PH regulator is solid contents 0%, total phosphorus content 0%, pH value are 11~12, density is about 0.8~1.2g/ The colourless transparent liquid of cm3.

Technical field

The present invention relates to power plant's dust suppression technology fields, specially a kind of desized wastewater concentrate power plant dust suppression technology.

Background technique

Thermal power plant is as the main electric power supply plant in China, and the 72.0% of Zhan Quanguo total capacity, although thermal power plant is that a production capacity is big Family, but it is also heavy polluter, and wherein dust pollution is just very prominent, and the dust that coal handling system generates not only causes environment dirty Dye, influences the visibility of workplace health sum aggregate control remote monitoring system, and acceleration mechanical abrasion destroys electric insulation, even It may cause explosion or fire incident occur, more seriously dust is goed deep into alveolar after in people's suction body and is adhered to the lobe of the lung On, it makes one to suffer from occupational disease, compromises the health of worker, therefore, the cry that coal handling system dust is effectively prevented Increasingly strong, dust suppressant be it is a kind of the particle dust in air can be captured rapidly and adsorbed by physico-chemical process, thus Achieve the purpose that dust suppression, dust-proof, be widely used in the places such as construction site, mine, plant area, city, there is good environment Benefit, dye-printing desizing waste water, water is smaller, and pollutant concentration is high, mainly contains slurry and its decomposition product, Soft flocks, acid, starch Alkali and enzyme pollutant, turbidity are big.For waste water in alkalinity, pH value is 12 or so.It is high with BOD, COD when starch size, it is biochemical Property is preferable；Very high with COD when synthetic slurry, BOD is less than 5mg/L, and water biodegradability is poor, therefore always treatment of dyeing wastewater Difficult point, the main component of the high poly- waste water of printing and dyeing is chloride and sulfate, polyvinyl alcohol of the metal ions such as calcium, magnesium, sodium etc. Surfactants such as chemical sizwe and auxiliary agent etc..

Currently, dust suppressant mainly passes through synthesis or the method for compounding is made, but dust suppressant made from the country is often deposited In some problems, such as corrosivity height, poor, the toxic, higher cost of hydrophily etc..

Summary of the invention

(1) the technical issues of solving

In view of the deficiencies of the prior art, it the present invention provides a kind of desized wastewater concentrate power plant dust suppression technology, solves Often there is asking for some problems, such as corrosivity height, poor, the toxic, higher cost of hydrophily etc. in dust suppressant made from the country Topic.

(2) technical solution

In order to achieve the above object, the present invention is achieved by the following technical programs: a kind of desized wastewater concentrate power plant Dust suppression technology, specifically includes the following steps:

The preparation of S1, desized wastewater concentrate: two are carried out to desized wastewater using membrane distillation-ultrafiltration secondary membrane concentration technology Grade film concentration, is then allowed to stand 40-60 minutes, desized wastewater concentrate can be obtained；

S2, operation: choose desized wastewater concentrate obtained in appropriate step S1 be added in clean reaction kettle into Row stirring, is operated by the way of at the uniform velocity stirring, and the whipping temp for controlling reaction kettle is 50-65 DEG C, and stirring rate is 100-200 revs/min, mixing time is in 30-50 parts, so that then desized wastewater concentrate can be chosen suitable with thermally equivalent The 1% PAC aqueous solution and 30% acrylic acid solution of amount are respectively placed in the dropping funel of reaction kettle, are controlled rate of addition, are made 1% PAC aqueous solution, acrylic acid can add simultaneously, time for adding control at 2-3 hours, then reaction kettle is risen Reaction kettle is warming up to 65-70 DEG C by temperature, continues to be stirred raw material, and the mixing time reaction time is 1.5 hours, stirring speed Rate is 100-200 revs/min, obtains the mixture of desized wastewater concentrate dust suppressant；

The preparation of S3, desized wastewater concentrate dust suppressant: use PH regulator by solution after reaction solution is cooled to room temperature PH is adjusted to 7.0-8.0, obtains desized wastewater concentrate dust suppressant.

Aluminium polychloride (abbreviation poly-aluminium) is also referred to as aluminium chloride, and molecular formula is [Al2 (OH) nCl6-n] m, product quality Meet national GB15892-2003 standard, which is a kind of inorganic polymer coagulant, main double-deck by compression, absorption electricity Neutralization, adsorption bridging, sediment net such as catch at the mechanisms, keep subtle suspended particles and colloidal ion in water de- steady, aggregation, wadding Solidifying, coagulation, precipitating, reach purified treatment effect.

Acidity regulator or pH value controlling agent, using come a kind of food additives for adjusting or keeping pH value (acid or alkali), Acidity regulator can be organic acid or inorganic acid, alkali, neutralizer or buffer, be artificial synthesized with natural plant hormone Active one kind organic compound, it has been found that there is regulating plant growth and development functional mass to have auxin, gibberellin, second Alkene, the basic element of cell division, abscisic acid, study on brassinolide etc., wherein study on brassinolide is that the present age, state-of-the art promotion was planted in the world again The endogenous hormones of object high-yield and high-efficiency, and current China's development highly efficient farming to provide greater and better yields and the ecological agriculture most have vigor and vitality A kind of new plant growth regulator, acidity regulator is by its E code identification, such as E260 (acetic acid), or is listed in " food acidity Under agent ".

Preferably, the weight ratio part for the desized wastewater concentrate being added in the step S2 be 30-50 parts, described 1% Weight ratio part of PAC aqueous solution be 20-30 part, weight ratio part of 30% acrylic acid solution is 15-25 parts.

Preferably, in the step S3 PH regulator each component the mass ratio of the material are as follows: neutralizing amine 15~30%, burnt sulfurous Sour sodium 10~20%, deionized water 50~75%, the PH regulator is solid contents 0%, total phosphorus content 0%, pH value are 11~12, the colourless transparent liquid that density is about 0.8~1.2g/cm3.

(3) beneficial effect

The present invention provides a kind of desized wastewater concentrate power plant dust suppression technologies.Have compared with prior art following beneficial Effect:

(1), the desized wastewater concentrate power plant dust suppression technology, specifically includes the following steps: S1, desized wastewater concentrate Preparation: carrying out secondary membrane concentration to desized wastewater using membrane distillation-ultrafiltration secondary membrane concentration technology, be then allowed to stand 40-60 minutes, Desized wastewater concentrate can be obtained, S2, operation: it is dry to choose desized wastewater concentrate addition obtained in appropriate step S1 It is stirred in net reaction kettle, is operated by the way of at the uniform velocity stirring, the whipping temp for controlling reaction kettle is 50-65 DEG C, stirring rate be 100-200 revs/min, mixing time be 30-50 parts in, allow desized wastewater concentrate uniformly by Heat, the PAC aqueous solution and 30% acrylic acid solution for then choosing suitable 1% are respectively placed in the dropping funel of reaction kettle, control Rate of addition processed enables 1% PAC aqueous solution, acrylic acid to add simultaneously, and time for adding was controlled at 2-3 hours, then will Reaction kettle heats up, and reaction kettle is warming up to 65-70 DEG C, continues to be stirred raw material, and the mixing time reaction time is 1.5 Hour, stirring rate is 100-200 revs/min, obtains the mixture of desized wastewater concentrate dust suppressant, S3, desized wastewater are dense The preparation of contracting liquid dust suppressant: solution PH is adjusted to by 7.0-8.0 using PH regulator after reaction solution is cooled to room temperature, is moved back Pulp waste water concentrate dust suppressant is rigidly fastened within reticular structure by capture, absorption, reunion dust particle, is played wet Profit, bonding, condensation, moisture absorption, dust-proof, anti-etch and antiscour effect；With good film forming characteristics, can effectively fix Dust simultaneously forms protecting film in surface of material, and degradable to pollute to environment, simple production process, production cost are low, It is concentrated using dye-printing desizing waste water, and used partial polymer therein is modified, it is useless to solve dye-printing desizing to a certain extent The problem that water treatment technology is complicated, processing cost is high.

(2), the desized wastewater concentrate power plant dust suppression technology passes through the desized wastewater concentrate that is added in step S2 Weight ratio part is 30-50 parts, and weight ratio part of described 1% PAC aqueous solution is 20-30 parts, 30% acrylic acid solution Weight ratio part is 15-25 parts, the mass ratio of the material of PH regulator each component in step S3 are as follows: neutralizing amine 15~30%, burnt sulfurous Sour sodium 10~20%, deionized water 50~75%, the PH regulator is solid contents 0%, total phosphorus content 0%, pH value are 11~12, the colourless transparent liquid that density is about 0.8~1.2g/cm3 compared with domestic similar product, while also solving state The problems such as corrosivity existing for interior some products is high, hydrophily is poor, toxic, higher cost.

Detailed description of the invention

Fig. 1 is step flow chart of the invention.

Specific embodiment

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.

Referring to Fig. 1, the embodiment of the present invention provides a kind of three kinds of technical solutions: desized wastewater concentrate power plant dust suppression skill Art specifically includes following embodiment: