CN115785907A

CN115785907A - Dustproof spray based on phospholipid mixture-XGTCS-alkyl glycoside

Info

Publication number: CN115785907A
Application number: CN202211534974.9A
Authority: CN
Inventors: 王秉; 徐冰; 邵帅; 胡铭周; 彭志勤; 万军民
Original assignee: Zhejiang Sci Tech University ZSTU
Current assignee: Zhejiang Sci Tech University ZSTU
Priority date: 2022-11-30
Filing date: 2022-11-30
Publication date: 2023-03-14
Anticipated expiration: 2042-11-30
Also published as: CN115785907B

Abstract

The invention relates to the technical field of dust prevention, and discloses a dust prevention spray based on a phospholipid mixture-XGTCS-alkyl glycoside, which is prepared by the following steps: synthesizing a TCS chemical modifier; modifying xanthan gum to obtain XGTCS; mixing phospholipid mixture, XGTCS aqueous solution and alkyl glycoside aqueous solution to obtain dustproof spray based on phospholipid mixture-XGTCS-alkyl glycoside. The main components of the dustproof spray are phospholipid mixture, alkyl glycoside and XGTCS, and the dustproof spray has excellent dust suppression performance, is green and environment-friendly in raw materials and is not difficult to degrade.

Description

Dustproof spray based on phospholipid mixture-XGTCS-alkyl glycoside

Technical Field

The invention relates to the technical field of dust prevention, and particularly relates to a dust prevention spray based on a phospholipid mixture-XGTCS-alkyl glycoside.

Background

The whole production process of the flour processing plant is always accompanied by the phenomenon of dust suspension. The dust is mainly from soil mixed in the grains, the broken skins and shells of the grains and fine particles ground into flour. Although flour mill workers wear dust masks, the dust masks are still inhaled into the lungs due to the high dust concentration. The dust can cause permanent damage to the respiratory tract and the lung of a human body, chronic inflammation can be caused after a long time, and the slow obstruction of the lung can be seriously developed to easily affect the health of the human body. Secondly, the dust concentration of the whole workshop is higher because a flour mill needs to produce and process a large amount of flour. When the dust and air are mixed, a combustible mixed gas is formed. The mixed gas can cause dust explosion once meeting high temperature or ignition point. Meanwhile, a lot of dust generated in a flour workshop is accumulated for a long time, so that the workshop and the surrounding environment are greatly polluted.

At present, most flour factories select expensive and huge dust removal equipment, such as a cyclone, to remove dust particles with the diameter of more than 20-30 microns, if more particles in the dust have the diameter of less than 20 microns, secondary dust removal needs to be selected, and air after the two-stage treatment is discharged into the atmosphere through a hood. In the process of designing the dust removal air net, primary dust removal or secondary dust removal is set according to different process flows and working procedures, and the type of dust removal equipment are considered, if the selection is improper or the installation and the manufacture are not proper. Not only the effect of ventilation and dust removal is influenced, but also the manpower, financial resources and the like are wasted, and unnecessary loss is caused. Therefore, a low-cost, convenient and efficient dust removal method is needed to perfectly solve the problems.

The spray dust suppression technology is generally used for dust removal in the excavation process of coal mining machines and heading machines. Highly atomized droplet particles are used to effectively settle dust particles, and the spray dust suppression efficiency is affected by droplet diameter, dust diameter, droplet velocity, and droplet flow rate. The larger the dust diameter, the smaller the droplet diameter, the larger the droplet velocity, and the larger the droplet flow velocity, which improves the spray dust suppression efficiency. However, it is difficult to obtain droplet particles smaller than 10 μm for removing the dust particles that are inhaled, and the droplet particles tend to evaporate instantaneously, thereby failing to capture the dust particles. In addition, some studies have shown that the optimal droplet diameter for capturing respirable dust particles is 15-70 μm.

In order to capture smaller dust particles and improve dust suppression efficiency, the dust-proof agent is considered to be a dust-proof agent having the advantages of low cost, good dust removal effect, reduced weight loss and the like. Some green, natural polymers, because they have various functional groups, allow it to be physically and chemically modified into a multifunctional new material, enabling the development of multifunctional, efficient, environmentally friendly and degradable dust control agents.

Disclosure of Invention

In order to solve the technical problem, the invention provides an anti-dust spray based on phospholipid mixture-XGTCS-alkyl glycoside. The main components of the dustproof spray are phospholipid mixture, alkyl glycoside and XGTCS, and the dustproof spray has excellent dust suppression performance, is green and environment-friendly in raw materials and is not difficult to degrade.

The specific technical scheme of the invention is as follows: a dustproof spray based on phospholipid mixture-XGTCS-alkyl glycoside is prepared by the following steps:

1) Adding water and acetone into a reaction container, uniformly stirring, adding cyanuric chloride TCT, uniformly stirring, slowly dropwise adding sodium sulfanilate SS solution, and uniformly stirring to obtain a mixed solution containing TCS, cyanuric chloride TCT and HCl; the molar ratio of the cyanuric chloride to the sodium sulfanilate is 1 to (0.5-1.5).

In step 1), TCT and SS are reacted in a molar ratio of 1:2 to form TCS. Wherein TCT of "" one molecule breaks two-C-Cl bonds, while amino groups on two SS molecules each break one-NH bond, and then the two molecules are combined to generate TCS and HCl.

2) Adding sodium bicarbonate dropwise into the mixed solution obtained in the step 1) to react so as to adjust the pH value to be 5-6, and then heating the solution.

The sodium bicarbonate in the step 2) has the function of neutralizing HCl in the mixed solution.

3) And 2) continuing adding the sodium sulfanilate SS solution into the solution obtained in the step 2) until no bubbles are generated in the reaction, and simultaneously adding sodium bicarbonate until the reaction is finished to obtain the TCS solution.

The SS solution is added in step 3) to allow the rest of the TCT to react sufficiently to continue to form TCS.

The sodium sulfanilate is added twice to mainly reduce the generation of byproducts in the reaction process, cyanuric chloride is easily decomposed into cyanuric acid when meeting water and alkali, the excessive sodium sulfanilate is not beneficial to maintaining the pH of the solution when being added once, the molar ratio of the sodium sulfanilate to the sodium sulfanilate is finally maintained to be 1:2 when being added twice, the yield and the purity of TCS are improved, and the improvement of the later modification with XG is laid.

4) Rinsing the TCS solution in acetone to separate out a precipitate, performing vacuum filtration on the residual solution, combining the obtained precipitates, and performing vacuum drying to obtain the TCS chemical modifier.

5) Dissolving xanthan gum XG in water under stirring, placing the obtained xanthan gum solution in a reaction vessel and heating, and then dripping TCS chemical modifier into the xanthan gum solution under stirring to carry out nucleophilic substitution reaction.

In the step 6), the secondary structure of the xanthan gum is that the side chain is reversely wound around the main chain skeleton, and a rodlike double-spiral structure is formed through hydrogen bond maintenance. The xanthan gum is a water-soluble natural polymer, has excellent thickening property and rheological property, and can be used for adjusting the viscosity of the dustproof spray. However, hydroxyl groups in the xanthan gum structure cause instability of the xanthan gum, because the hydroxyl groups of the xanthan gum are easy to form gel with some metal elements, and meanwhile, functional group derivatization is easy to occur, and the hydroxyl groups in the xanthan gum molecular structure are subjected to reactions such as etherification, esterification and oxidation, so that the stability of the xanthan gum is not high. Therefore, the method leads the xanthan gum to carry out nucleophilic substitution reaction with TCS to form covalent bond, blocks hydroxyl in the xanthan gum structure and generates HCl, and can improve the stability of the xanthan gum.

In addition, after the xanthan gum is modified, a large number of hydrophilic groups such as amino groups and the like are introduced, so that the water retention capacity of the xanthan gum can be improved, the viscosity can be further controlled, the thickening property and the rheological property can be improved, and the stimulation effect on skin can be eliminated.

6) Dropwise adding a sodium bicarbonate solution into the reaction container obtained in the step 5) to react, taking out the reaction liquid, cooling to room temperature, adding absolute ethyl alcohol, stirring, standing until the precipitate is fully separated out, filtering, repeatedly washing the precipitate with absolute ethyl alcohol, extracting the generated solution, cooling to room temperature, and drying to obtain XGTCS.

Sodium bicarbonate is used to adjust the pH of the solution and neutralize the hydrochloric acid generated during the reaction of step 6).

7) Mixing phospholipid mixture, XGTCS aqueous solution and alkyl glycoside aqueous solution to obtain dustproof spray based on phospholipid mixture-XGTCS-alkyl glycoside.

The alkyl glycoside as a nonionic surfactant in the present invention can significantly reduce the critical micelle concentration, thereby reducing the contact angle and improving the wetting ability of the dust to easily spread on the dust surface, thereby reducing the contact angle and improving the wetting ability of the dust. In addition, water retention is an important property of anti-dust sprays, which form a solidified layer on the dust surface and reduce evaporation of internal moisture. The fatty acid generated after hydrolysis of the phospholipids in the phospholipid mixture can be polymerized with alkyl glycoside, which is a stable compound, but can be used for further synthesizing various esters and other derivatives (such as ether) by utilizing the three residual hydroxyl groups on the glycosyl. For example, the attachment of APG to carboxylic acids or other acids can produce various anionic esters of APG, such as sulfosuccinates, citrates, tartrates, maleates, sulfates, phosphates, and the like. The two further improve the wetting ability and the water retention under the synergistic effect.

Preferably, in step 1): the dosage ratio of the cyanuric chloride to the sodium sulfanilate to the water is 1mol:0.5-1.5mol: 400-600 mL.

Preferably, in the step 2), sodium bicarbonate is added to react for 1-3 h, and the heating temperature is 30-40 ℃.

Preferably, in the step 3), sodium sulfanilate is added to make the total molar ratio of cyanuric chloride to sodium sulfanilate 1:2, and sodium bicarbonate is added until the pH is adjusted to 6 to 7.

Preferably, in the step 4), the vacuum drying temperature is 60-80 ℃ and the time is 2-5h.

Preferably, in the step 5), the dosage ratio of the TCS chemical modifier, the xanthan gum and the water is 1mol:1-10mol: 20-40 mL, and the reaction temperature is 80-100 ℃.

Preferably, in the step 6), the concentration of the sodium bicarbonate solution is 0.5-1.5 g/L, and the reaction time is 1-2 h.

Preferably, in step 7), the volume ratio of the phospholipid mixture, the aqueous solution of XGTCS, and the aqueous solution of alkyl glycoside is 1-10:1.

Preferably, in step 7), the composition of the phospholipid mixture is: 3-7wt% of phospholipid powder, 3-7wt% of soybean salad oil and 86-94wt% of water.

Preferably, in the step 7), the concentration of the aqueous solution of the alkyl glycoside is 0.05 to 2wt%, and the concentration of the aqueous solution of the XGTCS is 0.5 to 2wt%.

Compared with the prior art, the invention has the beneficial effects that:

(1) The xanthan gum is a water-soluble natural polymer, has excellent thickening property and rheological property, and is suitable for being used as a dustproof spray component. On the basis, the invention utilizes TCS to seal hydroxyl in the xanthan structure, thereby further improving the stability of the xanthan. Meanwhile, after the xanthan gum is modified, a large number of hydrophilic groups such as amino groups and the like are introduced, so that the water retention capacity of the xanthan gum can be improved, the viscosity can be further controlled, the thickening property and the rheological property can be improved, and the irritation of the xanthan gum to skin can be eliminated.

(2) The alkyl glycoside as a nonionic surfactant in the present invention can significantly reduce the critical micelle concentration, thereby reducing the contact angle and improving the wetting ability of dust to easily spread on the dust surface, thereby reducing the contact angle and improving the wetting ability of dust. The fatty acid produced by hydrolysis of phospholipids in the phospholipid mixture of the invention can be polymerized with alkyl glycoside. The two further improve the wetting ability and the water retention under the synergistic effect.

(3) In the invention, the main components of phospholipid mixture and XG are nontoxic, harmless, green and environment-friendly raw materials, and meanwhile, the dosage of alkyl glycoside is small, so that resources can be saved and the cost can be reduced; the dust suppression effect of the dustproof spraying agent is integrally improved, and meanwhile, the prepared dustproof spraying agent of the phospholipid mixture XGTCS-alkyl glycoside does not exist for a long time in the environment and is not difficult to degrade, so that the dustproof spraying agent conforms to the green material advocated at present.

Detailed Description

The present invention will be further described with reference to the following examples.

Example 1

A preparation method of an anti-dust spray based on phospholipid mixture-XGTCS-alkyl glycoside comprises the following steps:

1) Adding 50mL of deionized water and 15mL of acetone into a reaction container in sequence, stirring uniformly, adding 10mol of TCT, fully stirring, slowly dropwise adding 10mol of SS solution, and completely stirring;

2) Dripping 1.0g/L sodium bicarbonate solution into a reaction container, continuously reacting for 2h until the pH is adjusted to 5.5, and then heating the solution to 35 ℃;

3) Continuously adding 10mol of sodium sulfanilate SS solution and sodium bicarbonate solution into the solution obtained in the step 2), adjusting the pH to 6.5, stirring for about 10min, and then waiting for the reaction to be completed;

4) Rinsing the solution obtained in the step 3) in acetone, separating out a precipitate, and carrying out vacuum filtration on the solution to obtain a large amount of white solid;

5) And (3) drying the white solid obtained in the step 4) in a vacuum drying chamber at the drying temperature of 80 ℃ for 2h until the quality is stable.

6) 5mol of XG was completely dissolved in 20mL of distilled water with stirring, the solution was placed in a reaction vessel and heated to 90 ℃ and then 1mol of TCS chemical modifier was slowly added to the solution with thorough stirring.

7) Gradually dropping 1mL of sodium bicarbonate solution (1.0 g/L) into the container; the reaction was allowed to continue for 10min, then the product was washed three times with absolute ethanol; the resulting solution was extracted and cooled to room temperature, followed by drying the product at 60 ℃ for 2h to obtain XGTCS;

8) Mixing phospholipid mixture (5% phospholipid powder +5% soybean salad oil +90% water) to 0.8% (v/v) XGTCS water solution to 0.1% alkyl glycoside water solution = 5: 1 to obtain dustproof spray;

9) An equal amount of dust was placed in a number of petri dishes of the same size and a mass error of less than 0.05g of coal dust was ensured. And (5) carrying out dustproof efficiency test. Wherein, the specific step of dustproof efficiency test does: and uniformly dripping the dustproof spraying agent on the surface of the dust sample. Water treated samples were used as controls. After the dripping liquid completely wetted the dust surface, its mass was recorded as M ₁ . All samples were placed in a 90 ℃ vacuum drying chamber. The samples were kept dry for 10 hours, taken out at intervals and weighed, and the mass recorded as M ₂ (ii) a The evaporation rate can be calculated using the following equation.

In the formula, theta: evaporation rate of dust spray, g.m ^-2 ·S ^-1 ；M ₁ : mass of dust before evaporation, g; m is a group of ₂ : mass of dust after evaporation, g; a: dust sample evaporation area, g; t: the evaporation time.

Example 2

2) Dropping 1.0g/L sodium bicarbonate solution into the reaction container, allowing the reaction to continue for 2h until the pH is adjusted to 5.5, and then heating the solution to 35 ℃;

3) Continuously adding 10mol of sodium sulfanilate SS solution and sodium bicarbonate solution into the solution obtained in the step 2), adjusting the pH value to 6.5, stirring for about 10min, and then waiting for the reaction to be finished;

7) Gradually dropping 1mL of sodium bicarbonate solution (1.0 g/L) into the container; the reaction was allowed to continue for 10min, then the product was washed three times with absolute ethanol; extracting the resulting solution and cooling it to room temperature, followed by drying the product at 60 ℃ for 2h to obtain XGTCS;

8) Mixing phospholipid mixture (5% phospholipid powder +5% soybean salad oil +90% water) to 0.8% XGTCS water solution: 0.1% alkyl glycoside water solution = 5: 12: 1 by volume ratio to obtain dustproof spray;

9) An equal amount of dust was placed in a number of petri dishes of the same size and a mass error of less than 0.05g of coal dust was ensured. And (5) testing the dustproof efficiency. Wherein, the specific step of dustproof efficiency test does: and uniformly dripping the dustproof spraying agent on the surface of the dust sample. Water treated samples were used as controls. After the dripping liquid had completely wetted the dust surface, its mass was recorded as M ₁ . All samples were placed in a 90 ℃ vacuum drying chamber. The sample was kept dry for 10 hours, taken out at intervals and weighed, the mass recorded as M ₂ (ii) a The evaporation rate can be calculated using the following equation.

Example 3

1) Adding 50mL of ionized water and 15mL of acetone into a reaction container in sequence, stirring uniformly, adding 10mol of TCT, fully stirring, slowly dropwise adding 10mol of SS solution, and stirring thoroughly;

2) Dripping 1.0g/L sodium bicarbonate solution into a reaction container, adjusting the pH to 5-6, continuing the reaction for 2 hours until the pH is adjusted to 5.5, and then heating the solution to 35 ℃;

6) 5mol of XG are stirred and completely dissolved in 20mL of distilled water, the solution is placed in a reaction vessel and heated to 90 ℃, and then 1mol of TCS chemical modifier is slowly added to the solution and stirred thoroughly.

8) Mixing phospholipid mixture (5% phospholipid powder +5% soybean salad oil +90% water) and 0.8% (v/v) XGTCS water solution and 0.1% alkyl glycoside water solution = 12: 5: 1 to obtain dustproof spray;

9) An equal amount of dust was placed in multiple petri dishes of the same size and the mass error of the smut was guaranteed to be less than 0.05g. And (5) testing the dustproof efficiency. Wherein, the specific step of dustproof efficiency test does: and uniformly dripping the dustproof spraying agent on the surface of the dust sample. Water treated samples were used as controls. After the dripping liquid completely wetted the dust surface, its mass was recorded as M ₁ . All samples were placed in a 90 ℃ vacuum drying chamber. The sample was kept dry for 10 hours, taken out at intervals and weighed, the mass recorded as M ₂ (ii) a The evaporation rate can be calculated using the following equation.

Example 4

3) Continuously adding 15mol of sodium sulfanilate SS solution and sodium bicarbonate solution into the solution obtained in the step 2), adjusting the pH to 6.5, stirring for about 10min, and then waiting for the reaction to be finished;

7) Gradually dropping 1mL of sodium bicarbonate solution (1.0 g/L) into the container; the reaction was allowed to continue for 10min, then the product was rinsed three times with anhydrous ethanol; the resulting solution was extracted and cooled to room temperature, followed by drying the product at 60 ℃ for 2h to obtain XGTCS;

9) An equal amount of dust was placed in a number of petri dishes of the same size and a mass error of less than 0.05g of coal dust was ensured. And (5) carrying out dustproof efficiency test. The dustproof efficiency test method comprises the following specific steps: and uniformly dripping the dustproof spraying agent on the surface of the dust sample. Water treated samples were used as controls. After the dripping liquid completely wetted the dust surface, its mass was recorded as M ₁ . All samples were placed in a 90 ℃ vacuum drying chamber. The samples were kept dry for 10 hours, taken out at intervals and weighed, and the mass recorded as M ₂ (ii) a The evaporation rate can be calculated using the following equation.

Comparative example 1

A preparation method of an anti-dust spray based on XGTCS-alkyl glycoside comprises the following steps:

8) Mixing at a volume ratio of 0.8% XGTCS aqueous solution: 0.1% alkylglycoside aqueous solution = 5: 1 to obtain a dust spray;

9) An equal amount of dust was placed in a number of petri dishes of the same size and a mass error of less than 0.05g of coal dust was ensured. And (5) testing the dustproof efficiency. The dustproof efficiency test method comprises the following specific steps: and uniformly dripping the dustproof spraying agent on the surface of the dust sample. Water treated samples were used as controls.

Comparative example 2

A preparation method of an anti-dust spray based on phospholipid mixture-alkyl glycoside comprises the following steps:

5) And (5) drying the white solid obtained in the step 4) in a vacuum drying chamber at the drying temperature of 80 ℃ for 2h until the quality is stable.

8) Mixing phospholipid mixture (5% of phospholipid powder, 5% of soybean salad oil and 90% of water) and 0.1% of alkyl glycoside water solution = 5: 1 according to volume ratio to obtain the dustproof spray;

9) An equal amount of dust was placed in a number of petri dishes of the same size and a mass error of less than 0.05g of coal dust was ensured. And (5) testing the dustproof efficiency. Wherein, the specific step of dustproof efficiency test does: and uniformly dripping the dustproof spraying agent on the surface of the dust sample. Water treated samples were used as controls.

Comparative example 3

A preparation method of an anti-dust spray based on phospholipid mixture-XGTCS comprises the following steps:

7) Gradually dropping 1mL of sodium bicarbonate solution (1.0 g/L) into the container; the reaction was allowed to continue for 10min, then the product was rinsed three times with anhydrous ethanol; extracting the resulting solution and cooling it to room temperature, followed by drying the product at 60 ℃ for 2h to obtain XGTCS;

8) Mixing phospholipid mixture (5% phospholipid powder +5% soybean salad oil +90% water) and 0.8% XGTCS water solution = 1: 1 at volume ratio to obtain dustproof spray;

9) An equal amount of dust was placed in multiple petri dishes of the same size and the mass error of the smut was guaranteed to be less than 0.05g. And (5) testing the dustproof efficiency. Wherein, the specific step of dustproof efficiency test does: and uniformly dripping the dustproof spraying agent on the surface of the dust sample. Water treated samples were used as controls.

Comparison of Performance

The above results show that the phospholipid mixture-XGTCS-alkylglycoside (example 1) has an extremely high dust control efficiency, since XG is modified with TCS and has a large number of hydroxyl (-OH) hydrophilic groups blocked in its macromolecular chain. The stability of XG is obviously improved. From the data analysis of example 1 and comparative examples 1-3, it is also evident that the dust resistance of XGTCS is further improved with the addition of phospholipid mixture and alkyl glycoside, probably because the mixture of phospholipid mixture as water retention agent and alkyl glycoside as wetting agent further reduces the surface tension of XGTCS solution to a lower level, so the compound solution can easily spread on the dust surface, thereby reducing the contact angle and improving the wetting ability to dust, while forming a solidified layer on the dust surface and reducing the evaporation of the underlying moisture. From the data in the table, we can also clearly see that the phospholipid mixture, XGTCS and alkyl glycoside lack any of the three in terms of anti-dust efficacy.

The raw materials and equipment used in the invention are common raw materials and equipment in the field if not specified; the methods used in the present invention are conventional in the art unless otherwise specified.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, alterations and equivalents of the above embodiments according to the technical spirit of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. An anti-dust spray based on phospholipid mixture-XGTCS-alkyl glycoside characterized by: the preparation method comprises the following steps:

1) Adding water and acetone into a reaction container, uniformly stirring, adding cyanuric chloride, uniformly stirring, slowly dropwise adding a sodium sulfanilate solution, and uniformly stirring to obtain a mixed solution containing TCS, cyanuric chloride and HCl; the molar ratio of the cyanuric chloride to the sodium sulfanilate is 1 (0.5-1.5);

2) Dropwise adding sodium bicarbonate into the mixed solution obtained in the step 1) for reaction to adjust the pH value to 5-6, and then heating the solution;

3) Continuously adding the sodium sulfanilate solution and sodium bicarbonate into the solution obtained in the step 2) until the reaction is finished to obtain a TCS solution;

4) Rinsing the TCS solution in acetone to separate out a precipitate, performing vacuum filtration on the residual solution, combining the obtained precipitates, and performing vacuum drying to obtain a TCS chemical modifier;

5) Dissolving xanthan gum in water under stirring, placing the obtained xanthan gum solution in a reaction vessel and heating, and then dropping a TCS chemical modifier into the xanthan gum solution under stirring to perform nucleophilic substitution reaction;

6) Dropwise adding a sodium bicarbonate solution into the reaction container obtained in the step 5) to react, taking out a reaction solution, cooling to room temperature, adding absolute ethyl alcohol, stirring, standing until precipitates are fully separated out, filtering, repeatedly washing the precipitates with absolute ethyl alcohol, extracting a generated solution, cooling to room temperature, and drying to obtain XGTCS;

2. The anti-dust spray of claim 1, wherein: in step 1): the dosage ratio of the cyanuric chloride to the sodium sulfanilate to the water is 1mol:0.5-1.5mol:400 to 600mL.

3. The anti-dust spray of claim 1, wherein: in the step 2), adding sodium bicarbonate, reacting for 1 to 3h, and heating to 30-40 ℃.

4. The dust spray of claim 1, wherein: in the step 3), adding sodium sulfanilate to ensure that the total molar ratio of cyanuric chloride to sodium sulfanilate is 1.

5. The anti-dust spray of claim 1, wherein: in the step 4), the vacuum drying temperature is 60-80 ℃, and the time is 2-5h.

6. The anti-dust spray of claim 1, wherein: in the step 5), the dosage ratio of the TCS chemical modifier, the xanthan gum and the water is 1mol:1-10mol: 20 to 40mL, and the reaction temperature is 80 to 100 ℃.

7. The dust spray of claim 1, wherein: in the step 6), the concentration of the sodium bicarbonate solution is 0.5-1.5 g/L, and the reaction time is 1-2h.

8. The dust spray of claim 1, wherein: in the step 7), the volume ratio of the phospholipid mixture to the aqueous solution of XGTCS to the aqueous solution of alkyl glycoside is 1-10.

9. The dust spray of claim 8, wherein: in step 7), the composition of the phospholipid mixture is: 3-7wt% of phospholipid powder, 3-7wt% of soybean salad oil and 86-94wt% of water.

10. The dust spray of claim 8, wherein: in the step 7), the concentration of the alkyl glycoside aqueous solution is 0.05 to 2wt%, and the concentration of the XGTCS aqueous solution is 0.5 to 2wt%.