CN111234780B - Dust settling agent and preparation method thereof - Google Patents
Dust settling agent and preparation method thereof Download PDFInfo
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- CN111234780B CN111234780B CN202010099761.2A CN202010099761A CN111234780B CN 111234780 B CN111234780 B CN 111234780B CN 202010099761 A CN202010099761 A CN 202010099761A CN 111234780 B CN111234780 B CN 111234780B
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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Abstract
The invention discloses a dust-settling agent and a preparation method thereof, and the dust-settling agent comprises the following components in percentage by weight: 0.20-0.45wt% of foaming agent, 0.50-1.00wt% of dust collector, 0.20-0.50wt% of dust curing agent and 98.05-99.10wt% of water. According to the invention, the dust-settling agent is prepared by adding the foaming agent, the dust collector and the dust curing agent in a proper proportion into water, a plurality of tiny bubbles can be formed in the spraying process, the dust-settling efficiency is improved, the adhesion of the bubbles to dust particles is strengthened, meanwhile, the dust particles are mutually connected to form an integral structure with certain strength, and secondary dust raising is effectively prevented.
Description
Technical Field
The invention belongs to the technical field of dust removal, and particularly relates to a dust settling agent and a preparation method thereof.
Background
Dust pollution in the workshop seriously affects the health of workers, deteriorates the working environment and accelerates the damage of equipment. Because the requirements of environmental protection and occupational health management are increasingly strict, more and more factory workshops adopt various modes to remove dust in the workshops at present, and the operation environment is improved. The spray dust settling is a common dust settling method, and a high-pressure water pump is used for pressurizing water flow, then liquid is dispersed into water mist through an atomizing nozzle and sprayed out, and water mist liquid drops collide with dust particles in the air, so that the dust particles are adsorbed and gathered and fall to the ground along with the liquid drops, and the aim of dust settling is achieved.
The inventor researches and discovers that: the dust particles produced in daily production are mostly silicate substances, tap water is directly sprayed by a conventional spray dust settling method, the formed water mist droplets are poor in pertinence to silicate dust, the binding force with the dust particles is weak, the dust particles falling to the ground are temporarily gathered, acting force between the particles is weak, and the aggregates are not strong, so that after moisture is volatilized, the dust particles falling to the ground are mutually dispersed, secondary dust is formed by slight disturbance of a vehicle or a pedestrian, the dust settling effect is poor, the efficiency is reduced, and the water consumption is greatly increased.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and solve the technical problem of dust fall, and provides a dust fall agent and a preparation method thereof, so that the prepared dust fall agent can completely adhere and settle dust generated by a dust source and enable dust particles to be mutually connected and gathered to form a whole with certain strength, thereby improving the dust fall efficiency and reducing secondary dust emission.
In order to achieve the above object, one aspect of the present invention provides a dedusting agent comprising, based on the total weight of the dedusting agent: 0.20-0.45wt% of foaming agent, 0.50-1.00wt% of dust collector, 0.20-0.50wt% of dust curing agent and 98.05-99.10wt% of water.
According to another aspect of the invention, the preparation method of the dust-settling agent is to uniformly mix the foaming agent, the dust collecting agent, the dust curing agent and water to obtain the dust-settling agent.
The invention has the following beneficial effects:
according to the invention, the dust-settling agent is prepared by adding the foaming agent, the dust collector and the dust curing agent in a proper proportion into water, a plurality of tiny bubbles can be formed in the spraying process, the dust-settling efficiency is improved, the adhesion of the bubbles to dust particles is strengthened, meanwhile, the dust particles are mutually connected to form an integral structure with certain strength, and secondary dust raising is effectively prevented.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts throughout.
Figure 1 shows a schematic diagram of a dedusting process for a dedusting agent according to one embodiment of the invention.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
One aspect of the present invention provides a dedusting agent comprising, based on the total weight of the dedusting agent: 0.20-0.45wt% of foaming agent, 0.50-1.00wt% of dust collector, 0.20-0.50wt% of dust curing agent and 98.05-99.10wt% of water.
The dust-settling agent disclosed by the invention is low in chemical substance concentration, good in liquid fluidity and convenient to spray and atomize.
According to the present invention, preferably, the foaming agent is an ionic surfactant capable of forming a foam.
The foaming agent is an ionic surfactant capable of reducing the surface tension of water and forming foam, and the foaming agent is added to enable the dedusting agent to generate a large amount of micro bubbles when being sprayed, and the micro bubbles are used as carriers of dust particles, so that the dedusting efficiency can be greatly improved.
According to the present invention, preferably, the foaming agent is sodium dodecylbenzene sulfonate and/or sodium dodecyl sulfate.
According to the present invention, preferably, the dust collector is prepared by a method comprising: and mixing the amine collecting agent with acid, adding water, stirring until the solution is clear to obtain an amine salt solution, and finally diluting with water to obtain the dust collecting agent.
The dust collector can be combined with silicate substances in dust particles through electrostatic force and semi-micelle adsorption, so that the adhesion of bubbles to the dust particles is enhanced.
According to the present invention, preferably, the amine collector is a monoamine and/or a diamine.
According to the present invention, preferably, the amine collector is a C11-C22 long chain aliphatic amine, preferably dodecylamine and/or octadecylamine.
According to the invention, preferably, the acid is concentrated hydrochloric acid. Further preferably, the mass concentration of the concentrated hydrochloric acid is more than 30%.
According to the invention, preferably, water is added at 60-80 ℃ and stirred until the solution is clear; the mass ratio of the amine collecting agent to the acid is (1-1.5) to 1;
the mass ratio of the water consumption for final dilution with water to the amine collector is (88-188): 1.
In the preparation method of the dust collecting agent, water is added and stirred until the mass ratio of the using amount of the clarified solution to the using amount of the amine collecting agent is (8-12): 1.
according to the invention, preferably, the dust curing agent is an organic enzyme protein soil curing agent; preferably a tharan bio-enzyme soil stabilizer.
The dust curing agent is a biological enzyme soil curing agent which is non-toxic, non-alkaline, non-corrosive, biodegradable and easily soluble in water, and can enable dust particles to be mutually bonded and aggregated, so that dust falling to the ground forms a whole with certain strength and larger particle size, and secondary dust raising is effectively prevented.
According to another aspect of the invention, the preparation method of the dust-settling agent is to uniformly mix the foaming agent, the dust collecting agent, the dust curing agent and water to obtain the dust-settling agent.
The invention is further illustrated by the following examples:
the dust settling agent of each of the following examples was prepared by the following method: and uniformly mixing the foaming agent, the dust collector, the dust curing agent and water to obtain the dust-settling agent.
The mass concentration of concentrated hydrochloric acid used in each of the following examples was 36%; the used dust curing agent is a tylan biological enzyme soil curing agent which is purchased from tylan liquidambar technology (Shenzhen) Limited;
the dust concentrations in the following examples and Table 1 were obtained by a portable dust concentration measuring instrument test, wherein the initial dust concentration and the dust concentration after 30 seconds were obtained by a portable dust concentration measuring instrument test in a range of 1.5 to 2m above the discharge opening in the actual production process in the workshop.
Example 1
Sodium dodecyl benzene sulfonate is used as a foaming agent; mixing 10g of dodecylamine with 10g of concentrated hydrochloric acid, adding 100g of water, stirring at 80 ℃ until the solution is clear to obtain an amine salt solution, and then adding 880g of water for dilution to obtain a dust collecting agent; based on the total weight of the dust-settling agent, the dust-settling agent with the total weight of 100kg is prepared according to 0.25wt% of foaming agent, 0.60wt% of dust collector, 0.35wt% of dust curing agent and 98.80wt% of water.
As shown in FIG. 1, the dust-reducing agent prepared in example 1 was sprayed onto the discharge opening of a workshop through a foam spraying device to obtain an initial dust concentration of 833mg/m 3 30 seconds after spraying, the dust concentration is 45mg/m 3 The dust fall rate is 94.60 percent, and the dust concentration 50cm above the ground surface of the operation field is 86mg/m when the forklift is in the operation process 3 The dust fall effect is good, and the secondary dust concentration is obviously reduced.
Example 2
Sodium dodecyl benzene sulfonate is used as a foaming agent; mixing 10g of dodecylamine with 10g of concentrated hydrochloric acid, adding 100g of water, stirring at 80 ℃ until the solution is clear to obtain an amine salt solution, and then adding 1200g of water for dilution to obtain a dust collecting agent; based on the total weight of the dust-settling agent, the dust-settling agent with the total weight of 100kg is prepared according to 0.35wt% of foaming agent, 0.80wt% of dust collector, 0.35wt% of dust curing agent and 98.50wt% of water.
As shown in figure 1, the dust-reducing agent prepared in example 2 is sprayed above a discharge opening of a workshop through a foam spraying device, and the initial dust concentration is 865mg/m 3 30 seconds after spraying, the dust concentration is 34mg/m 3 The dust fall rate is 96.07 percent, and the dust concentration 50cm above the ground surface of the operation field is 77mg/m during the forklift operation process 3 The dust fall effect is good, and the concentration of secondary dust is obviously reduced.
Example 3
Sodium dodecyl benzene sulfonate is used as a foaming agent; mixing 10g of octadecylamine and 10g of concentrated hydrochloric acid, adding 100g of water, stirring at 80 ℃ until the solution is clear to obtain an amine salt solution, and then adding 1500g of water for dilution to obtain a dust collecting agent; based on the total weight of the dust-settling agent, the dust-settling agent with the total weight of 100kg is prepared according to 0.45wt% of foaming agent, 0.80wt% of dust collector, 0.50wt% of dust curing agent and 98.25wt% of water.
As shown in FIG. 1, the dedusting agent prepared in example 3 was sprayed via a foam sprayer to the upper part of the discharge opening of a workshop at an initial dust concentration of 824mg/m 3 30 seconds after spraying, the dust concentration is 33mg/m 3 The dust fall rate is 96.00 percent, and the dust concentration 50cm above the ground surface of the operation field is detected to be 52mg/m in the forklift operation process 3 The dust fall effect is good, and the secondary dust concentration is obviously reduced.
Example 4
Sodium dodecyl sulfate is used as a foaming agent; mixing 10g of mixed amine with 10g of concentrated hydrochloric acid, adding 100g of water, stirring at 80 ℃ until the solution is clear to obtain an amine salt solution, and then adding 1880g of water for dilution to obtain a dust collector; based on the total weight of the dust-settling agent, preparing 100kg of dust-settling agent according to 0.45wt% of foaming agent, 1.00wt% of dust collector, 0.50wt% of dust curing agent and 98.05wt% of water; the mixed amine consists of dodecylamine and octadecylamine, and the mass ratio of the dodecylamine to the octadecylamine is 3.
As shown in FIG. 1, the dedusting agent prepared in example 4 was sprayed onto the discharge opening of a workshop through a foam spraying device, and the initial dust concentration was 889mg/m 3 30 seconds after spraying, the dust concentration is 31mg/m 3 The dust fall rate is 96.51 percent, and the dust concentration 50cm above the ground surface of the operation field is 56mg/m in the forklift operation process 3 The dust fall effect is good, and the secondary dust concentration is obviously reduced.
The following table 1 shows the results of dust removal by the conventional tap water spray dust removal method and the dust removal agent of the present invention, when no dust removal measure is used.
TABLE 1
As is clear from the data in Table 1, the settling rate of the dust particles was very low without any dust-falling measure, and the dust concentration after 30 seconds was 798mg/m 3 Down to 586mg/m 3 The reduction rate is only 26.57 percent, and the dust concentration at the position 50cm above the operation field is 453mg/m 3 Secondary dust is serious; dedusting by using a traditional tap water spraying dedusting method, wherein the dust concentration is 857mg/m after 30 seconds 3 Reduced to 271mg/m 3 The reduction rate is 68.38 percent, the dust fall efficiency is lower, and the dust concentration at the position 50cm above the operation field is 376mg/m 3 The secondary dust is large; compared with the prior art, the dust settling agent can improve the 30-second dust settling rate to 94.60-96.51% under the same condition, and the dust concentration at the position 50cm above the operation field is only 52mg/m 3 -86mg/m 3 Greatly promote dust fall efficiency, reduced the secondary raise dust.
Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (7)
1. A dedusting agent, comprising, based on the total weight of the dedusting agent: 0.20-0.45wt% of foaming agent, 0.50-1.00wt% of dust collector, 0.20-0.50wt% of dust curing agent and 98.05-99.10wt% of water;
wherein the dust curing agent is an organic enzyme protein soil curing agent;
the dust collector is prepared by the following method: mixing an amine collecting agent with acid, adding water, stirring until the solution is clear to obtain an amine salt solution, and finally diluting with water to obtain the dust collecting agent; the amine collector is dodecylamine and/or octadecylamine.
2. The dedusting agent of claim 1, wherein the foaming agent is an ionic surfactant capable of forming a foam.
3. The dedusting agent according to claim 2, wherein the foaming agent is sodium dodecyl benzene sulfonate and/or sodium dodecyl sulfate.
4. The dedusting agent according to claim 1, wherein the acid is concentrated hydrochloric acid.
5. The dedusting agent according to claim 1, wherein water is added at 60-80 ℃ and stirred until the solution is clear; the mass ratio of the amine collecting agent to the acid is (1-1.5) to 1;
the mass ratio of the water consumption for final dilution with water to the amine collector is (88-188): 1.
6. The dust fall agent of claim 1, wherein the dust curing agent is a tyrosin soil curing agent.
7. A process for preparing a dedusting agent as defined in any of claims 1 through 6, which comprises mixing a frothing agent, a dust collector, a dust curing agent and water uniformly to obtain the dedusting agent.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2005202429A1 (en) * | 2004-06-03 | 2005-12-22 | 3M Innovative Properties Company | Compositions for dust suppression and methods |
| CN101735771A (en) * | 2009-12-01 | 2010-06-16 | 北京精诚博桑科技有限公司 | Dust fall agent for water mist dust fall |
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2020
- 2020-02-18 CN CN202010099761.2A patent/CN111234780B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2005202429A1 (en) * | 2004-06-03 | 2005-12-22 | 3M Innovative Properties Company | Compositions for dust suppression and methods |
| CN101735771A (en) * | 2009-12-01 | 2010-06-16 | 北京精诚博桑科技有限公司 | Dust fall agent for water mist dust fall |
Non-Patent Citations (4)
| Title |
|---|
| 泰然酶土壤固化筑路技术应用研究;方涛等;《工程建设与设计》;20090320(第03期);92-96 * |
| 煤矿泡沫降尘起泡剂选择的研究;段健等;《工业安全与环保》;20081210;第34卷(第12期);6-7 * |
| 道路固化和抑尘的研究进展;胡代清等;《黑龙江交通科技》;20180115(第01期);17-19 * |
| 高级脂肪胺及其衍生物的应用前景;刘志勤等;《精细与专用化学品》;20071121;第15卷(第22期);4-7,16 * |
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