Novel anti-freezing and high-bonding-property dust suppression material as well as preparation method and application thereof

Abstract

The invention discloses a novel anti-freezing and high-bonding-property dust suppression material and a preparation method and application thereof.The preparation method comprises the following steps that 1, gellan gum is weighed and put into a container, water is added for mixing, alkali liquor is used for heating to adjust the pH to 9-10 while sufficient stirring is conducted, epoxy chloropropane is dropwise added for a reaction for 1-2 h, after the reaction is finished, a hydrochloric acid solution is used for neutralizing the pH to 6-7, and a mixed solution I is obtained; (2) adding water and polyethylene glycol into another container, stirring and heating until the water and the polyethylene glycol are completely dissolved, adding citric acid and p-toluenesulfonic acid, heating to 90-95 DEG C, reacting to obtain a mixed solution II, fully and uniformly mixing the mixed solution I and the mixed solution II, adjusting the pH value of the solution to be neutral, heating to 90-95 DEG C, and reacting for 1.5-2 hours to obtain a mixed solution III; and (3) cooling the mixed solution III to room temperature, and adding a surfactant and a water-retaining agent into the mixed solution III to obtain the dust suppressant solution. The concrete has excellent water retention performance and plasticity, and has anti-freezing and high cohesiveness.

Description

Technical Field

[0001] The invention relates to the technical field of dust suppressants, and in particular to a novel antifreeze and high-adhesion dust suppressant material and a preparation method and application thereof. Background Art

[0002] Mining, loading, transportation and unloading are the main links of dust emission in coal mining practice and processing. According to relevant research, the dust generated in these processes accounts for about 90% of the total dust in mines. Dust not only pollutes the surrounding environment and destroys the ecosystem, but also harms the health of workers and increases pneumoconiosis.

[0003] At present, the control measures for dust pollution in mining areas are roughly divided into traditional water sprinkling to suppress dust and new chemical dust removal. The temperature in the north is generally low in winter, with an average temperature of minus ten degrees Celsius or even lower. Conventional water sprinkling can no longer effectively cope with the low temperature environment. After spraying, the roads have severe icing, which significantly affects the dust suppression effect. At present, most dust suppressants still have problems such as single function, low dust suppression efficiency, and environmental pollution. For example, most chemical dust suppressants show poor adhesion ability and are prone to secondary dust pollution. Therefore, in view of the low temperature problem in open-pit coal mines, it is imperative to invent a new type of dust suppressant that can not only suppress dust efficiently but also have a certain antifreeze ability. Summary of the invention

[0004] In view of the deficiencies in the prior art, the first purpose of the present invention is to provide a method for preparing a novel antifreeze and high-adhesion dust suppression material, the second purpose is to provide a novel antifreeze and high-adhesion dust suppression material prepared thereby, and the third purpose is to provide its application. The material has excellent water retention and plasticity, and has antifreeze and high adhesion properties.

[0005] In order to achieve the above first purpose, the present invention adopts the following technical solution: a method for preparing a new type of antifreeze and high-adhesion dust suppression material, characterized in that it is prepared according to the following steps:

[0006] (1) Weigh gellan gum, put it into a container, add water and mix, stir thoroughly, heat to 50-60° C., adjust the pH to 9-10 with alkali solution, add epichlorohydrin dropwise, react for 1-2 hours, and after the reaction is completed, neutralize the pH to 6-7 with hydrochloric acid solution to obtain mixed solution I;

[0007] (2) Add water and polyethylene glycol to another container, stir and heat until completely dissolved, add citric acid and p-toluenesulfonic acid and heat to 90-95°C to react to obtain mixed solution II, thoroughly mix mixed solution I and mixed solution II, adjust the pH of the solution to neutral, heat to 90-95°C and react for 1.5-2h to obtain mixed solution III;

[0008] (3) Cool the mixed solution III to room temperature, add a surfactant and a water retaining agent to the mixed solution III, and thus obtain a dust suppressant solution.

[0009] In the above scheme, the added amount of each substance is as follows: 5-9 parts of gellan gum, 1.5-2 parts of epichlorohydrin, 2.5-5 parts of polyethylene glycol, 1.4-4.4 parts of citric acid, 1-5 parts of p-toluenesulfonic acid, 2-6 parts of water retaining agent, and 8-12 parts of surfactant.

[0010] In the above scheme: the water retaining agent is glycerol.

[0011] In the above scheme: the wetting agent is sodium α-olefin sulfonate.

[0012] In the above scheme: distilled water is used as water, and the addition amount is 1500-3000 parts.

[0013] In the above scheme: the alkali solution is a sodium hydroxide solution with a mass concentration of 5%-10%.

[0014] In the above scheme: the mass concentration of the hydrochloric acid solution is 5%-10%.

[0015] In the above scheme: in step (2), citric acid and p-toluenesulfonic acid are added and reacted for 1-2 hours.

[0016] The second object of the present invention is achieved in this way: a new type of antifreeze and high adhesion dust suppression material prepared by the preparation method of the new type of antifreeze and high adhesion dust suppression material.

[0017] The third object of the present invention is achieved by: applying the novel antifreeze and high-adhesion dust suppression material to dust suppression in coal mines.

[0018] The present invention uses:

[0019] Gellan gum is a high molecular weight linear polysaccharide with safe and non-toxic ingredients. Gellan gum has very good water retention and freeze-thaw stability, and still maintains dust suppression performance in low temperature environments.

[0020] Polyethylene glycol has good biocompatibility, contains a large number of hydroxyl groups in the molecular chain, and can undergo a variety of chemical modifications. In addition, polyethylene glycol has high chemical stability and is not prone to decomposition and deterioration, which makes its application in dust suppressants effective for a long time.

[0021] As a cross-linking agent, epichlorohydrin can undergo nucleophilic addition reaction with nucleophilic sites in the molecule to form COC bonds, which increases the stability and durability of the material. It has high reactivity and a wide range of applications during the cross-linking process.

[0022] Citric acid is an environmentally friendly product. It can be converted into carbon dioxide and water under the action of water and microorganisms. It will not pollute the environment and is a good chemical raw material.

[0023] Sodium α-olefin sulfonate is an anionic surfactant that behaves as a cationic in an acidic medium and as a nonionic in an alkaline medium, which enables it to maintain good performance at different pH values. Sodium α-olefin sulfonate can significantly reduce the critical micelle concentration of the solution and improve wettability.

[0024] The reaction formula of each step of the present invention is as follows:

[0025] (1) Cross-linking reaction

[0026]

[0027] (2) Esterification reaction

[0028]

[0029] (3) Hydrogen bond double network structure

[0030]

[0031] GG-OH represents gellan gum, and CLGG-OH represents cross-linked gellan gum. The gellan gum molecule contains multiple hydroxyl groups, so the product of step (3) still exists in the form of HO-CLGG.

[0032] The epoxy group of epichlorohydrin reacts with the active group hydroxyl group in gellan gum to open the epoxy ring and form COC. As the cross-linking reaction proceeds, the molecular chains of gellan gum are connected through the cross-linking points formed by epichlorohydrin, eventually forming a three-dimensional network structure. This cross-linking structure enhances the stability and durability of the material and makes the network structure of gellan gum more stable.

[0033] The hydroxyl group of polyethylene glycol and the carboxyl group of citric acid undergo esterification reaction under the catalytic action of p-toluenesulfonic acid, and water molecules are released simultaneously through the dehydration reaction between molecules to form an ester bond (-COO-) to obtain the modified product polyethylene glycol citrate.

[0034] Finally, the two intermediates form non-covalent interactions through hydrogen bonds, and the molecular chains entangle with each other to form a double network structure with a synergistic enhancement effect.

[0035] Compared with the prior art, the present invention has the following beneficial effects:

[0036] (1) The present invention adopts a cross-linking method to modify gellan gum. The epoxy group of epichlorohydrin is ring-opened to form cross-linking points between the molecular chains of gellan gum, making the network structure of gellan gum more stable. Polyethylene glycol and citric acid undergo esterification reaction to generate polar ester bonds (-COO-). The introduction of this high-density network structure and ester bonds enables the product to have excellent water retention and plasticity.

[0037] (2) Cross-linked gellan gum and polyethylene glycol citrate are copolymerized and then compounded with sodium α-olefin sulfonate to finally obtain a dust suppression material with antifreeze and high adhesion.

[0038] (4) The dust suppressant prepared by the present invention contains hydroxyl and carboxyl groups, which can generate electrostatic effects with nitrogen-containing functional groups in coal and hydrogen bonds with oxygen-containing functional groups in coal, thereby enhancing the adsorption of coal dust by the dust suppressant and forming a hard solidified layer. In addition, glycerol can lock in water. After being treated with the dust suppressant of the present invention, water molecules form hydrogen bonds with the hydrophilic groups in the double network structure and are firmly adsorbed on the network structure. The double network structure enhances the agglomeration effect between coal dust particles, making the crust tighter and firmer. The solidified layer in low-temperature and severe cold mining areas can still effectively suppress dust. The present invention can provide a feasible solution for dust control of dust suppressants in severe cold mining areas.

[0039] (5) The dust suppressant prepared by the present invention can play a certain bonding role on coal dust, and forms a hard and compact solidified layer on the surface of coal dust. After spraying the dust suppressant of the present invention for a period of time, the dust suppression rate of PM10 reaches 98.25%, and the cumulative hardness loss is only 10.21%. Compared with simply spraying gellan gum solution and surfactant, the antifreeze property of the coal dust solidified layer is significantly improved, the evaporation of water is delayed, and the dust suppression period is extended. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a comparison chart of the frost resistance test of the embodiment and the comparative example.

[0041] Figure 2 It is a graph of dust suppression rate and water retention rate of the embodiments and comparative examples.

[0042] Figure 3 It is a process flow chart of the present invention. DETAILED DESCRIPTION

[0043] The present invention is further described in detail below through specific embodiments:

[0044] Example 1

[0045] Step 1: Weigh 0.5g of gellan gum, put it into a three-necked flask, add 100mL of distilled water and mix, stir thoroughly at 200r / min, heat to 50°C in a constant temperature water bath, adjust the pH to 10 with a 5% sodium hydroxide solution, add 0.16g of epichlorohydrin, maintain 50°C, react for 2h, and after the reaction, neutralize the pH to 6-7 with a 5% hydrochloric acid solution to obtain a mixed solution I.

[0046] Step 2: Add 100 mL of distilled water and 0.25 g of polyethylene glycol to a beaker, stir and heat to 70°C until completely dissolved, then add 0.14 g of citric acid and 0.1 g of p-toluenesulfonic acid, heat to 90°C in a water bath and react for 1 h to obtain mixed solution II, mix mixed solution I and mixed solution II thoroughly, adjust the pH of the solution to neutral, heat to 90°C in a water bath and react for 1.5 h to obtain mixed solution III.

[0047] Step 3: Cool the mixed solution III to room temperature, add 0.8g of surfactant and 0.2g of water retaining agent to the mixed solution III to prepare the dust suppressant solution.

[0048] Example 2

[0049] Step 1: Weigh 0.5g of gellan gum, put it into a three-necked flask, add 100mL of distilled water and mix, stir thoroughly at 200r / min, heat to 50°C in a constant temperature water bath, adjust the pH to 10 with a 5% sodium hydroxide solution, add 0.18g of epichlorohydrin, maintain 60°C, react for 1h, and after the reaction is completed, neutralize the pH to 6-7 with a 5% hydrochloric acid solution to obtain a mixed solution I.

[0050] Step 2: Add 200 mL of distilled water and 0.45 g of polyethylene glycol to a beaker, stir and heat to 70°C until completely dissolved, then add 0.29 g of citric acid and 0.1 g of p-toluenesulfonic acid, heat to 95°C in a water bath and react for 1 h to obtain mixed solution II, thoroughly mix mixed solution I and mixed solution II, adjust the pH of the solution to neutral, heat to 90°C in a water bath and react for 2 h to obtain mixed solution III;.

[0051] Step 3: Cool the mixed solution III to room temperature, add 0.8g of surfactant and 0.2g of water retaining agent to the mixed solution III to prepare the dust suppressant solution.

[0052] Example 3

[0053] Step 1: Weigh 0.5g of gellan gum, put it into a three-necked flask, add 100mL of distilled water and mix, stir thoroughly at 200r / min, heat to 60°C in a constant temperature water bath, adjust the pH to 10 with a 10% sodium hydroxide solution, add 0.18g of epichlorohydrin, maintain 60°C, react for 1h, and after the reaction is completed, neutralize the pH to 6-7 with a 10% hydrochloric acid solution to obtain a mixed solution I.

[0054] Step 2: Add 200 mL of distilled water and 0.35 g of polyethylene glycol to a beaker, stir and heat to 70°C until completely dissolved, then add 0.44 g of citric acid and 0.1 g of p-toluenesulfonic acid, heat to 95°C in a water bath and react for 1 h to obtain mixed solution II, thoroughly mix mixed solution I and mixed solution II, adjust the pH of the solution to neutral, heat to 95°C in a water bath and react for 1.5 h to obtain mixed solution III;.

[0055] Step 3: Cool the mixed solution III to room temperature, add 0.8g of surfactant and 0.2g of water retaining agent to the mixed solution III to prepare the dust suppressant solution.

[0056] Example 4

[0057] Step 1: Weigh 0.7g of gellan gum, put it into a three-necked flask, add 100mL of distilled water and mix, stir thoroughly at 200r / min, heat to 50°C in a constant temperature water bath, adjust the pH to 10 with a 5% sodium hydroxide solution, add 0.16g of epichlorohydrin, maintain 50°C, react for 1h, and after the reaction is completed, neutralize the pH to 6-7 with a 5% hydrochloric acid solution to obtain a mixed solution I.

[0058] Step 2: Add 200 mL of distilled water and 0.45 g of polyethylene glycol to a beaker, stir and heat to 70°C until completely dissolved, then add 0.44 g of citric acid and 0.3 g of p-toluenesulfonic acid, heat to 90°C in a water bath and react for 1 h to obtain mixed solution II, thoroughly mix mixed solution I and mixed solution II, adjust the pH of the solution to neutral, heat to 90°C in a water bath and react for 2 h to obtain mixed solution III;.

[0059] Step 3: Cool the mixed solution III to room temperature, add 1g of surfactant and 0.4g of water retaining agent to the mixed solution III to prepare the dust suppressant solution.

[0060] Example 5

[0061] Step 1: Weigh 0.7 g of gellan gum, put it into a three-necked flask, add 100 mL of distilled water and mix, stir thoroughly at 200 r / min, heat to 50°C in a constant temperature water bath, adjust the pH to 10 with a 5% sodium hydroxide solution, add 0.18 g of epichlorohydrin, maintain 50°C, react for 2 hours, and after the reaction is completed, neutralize the pH to 6-7 with a 5% hydrochloric acid solution to obtain a mixed solution I.

[0062] Step 2: Add 200 mL of distilled water and 0.35 g of polyethylene glycol to a beaker, stir and heat to 70°C until completely dissolved, then add 0.14 g of citric acid and 0.3 g of p-toluenesulfonic acid, heat to 95°C in a water bath and react for 1 h to obtain mixed solution II, thoroughly mix mixed solution I and mixed solution II, adjust the pH of the solution to neutral, heat to 90°C in a water bath and react for 2 h to obtain mixed solution III;.

[0063] Step 3: Cool the mixed solution III to room temperature, add 1g of surfactant and 0.4g of water retaining agent to the mixed solution III to prepare the dust suppressant solution.

[0064] Example 6

[0065] Step 1: Weigh 0.7g of gellan gum, put it into a three-necked flask, add 100mL of distilled water and mix, stir thoroughly at 200r / min, heat to 60°C in a constant temperature water bath, adjust the pH to 10 with a 5% sodium hydroxide solution, add 0.2g of epichlorohydrin, maintain 60°C, react for 1h, and after the reaction is completed, neutralize the pH to 6-7 with a 5% hydrochloric acid solution to obtain a mixed solution I.

[0066] Step 2: Add 200 mL of distilled water and 0.25 g of polyethylene glycol to a beaker, stir and heat to 70°C until completely dissolved, then add 0.29 g of citric acid and 0.3 g of p-toluenesulfonic acid, heat to 90°C in a water bath and react for 1 h to obtain mixed solution II, thoroughly mix mixed solution I and mixed solution II, adjust the pH of the solution to neutral, heat to 90°C in a water bath and react for 1.5 h to obtain mixed solution III;.

[0067] Step 3: Cool the mixed solution III to room temperature, add 1g of surfactant and 0.4g of water retaining agent to the mixed solution III to prepare the dust suppressant solution.

[0068] Example 7

[0069] Step 1: Weigh 0.9 g of gellan gum, put it into a three-necked flask, add 100 mL of distilled water and mix, stir thoroughly at 200 r / min, heat to 60°C in a constant temperature water bath, adjust the pH to 10 with a 5% sodium hydroxide solution, add 0.16 g of epichlorohydrin, maintain 60°C, react for 1 hour, and after the reaction is completed, neutralize the pH to 6-7 with a 5% hydrochloric acid solution to obtain a mixed solution I.

[0070] Step 2: Add 200 mL of distilled water and 0.35 g of polyethylene glycol to a beaker, stir and heat to 70°C until completely dissolved, then add 0.29 g of citric acid and 0.5 g of p-toluenesulfonic acid, heat to 90°C in a water bath and react for 2 h to obtain mixed solution II, mix mixed solution I and mixed solution II thoroughly, adjust the pH of the solution to neutral, heat to 90°C in a water bath and react for 1.5 h to obtain mixed solution III.

[0071] Step 3: Cool the mixed solution III to room temperature, add 1.2 g of surfactant and 0.6 g of water retaining agent to the mixed solution III to prepare the dust suppressant solution.

[0072] Example 8

[0073] Step 1: Weigh 0.9 g of gellan gum, put it into a three-necked flask, add 100 mL of distilled water and mix, stir thoroughly at 200 r / min, heat to 50°C in a constant temperature water bath, adjust the pH to 10 with a 5% sodium hydroxide solution, add 0.18 g of epichlorohydrin, maintain 50°C, react for 1 h, and after the reaction is completed, neutralize the pH to 6-7 with a 5% hydrochloric acid solution to obtain a mixed solution I.

[0074] Step 2: Add 200 mL of distilled water and 0.25 g of polyethylene glycol to a beaker, stir and heat to 70°C until completely dissolved, then add 0.44 g of citric acid and 0.5 g of p-toluenesulfonic acid, heat to 90°C in a water bath and react for 1 h to obtain mixed solution II, mix mixed solution I and mixed solution II thoroughly, adjust the pH of the solution to neutral, heat to 90°C in a water bath and react for 1.5 h to obtain mixed solution III.

[0075] Step 3: Cool the mixed solution III to room temperature, add 1.2 g of surfactant and 0.6 g of water retaining agent to the mixed solution III to prepare the dust suppressant solution.

[0076] Example 9

[0077] Step 1: Weigh 0.9 g of gellan gum, put it into a three-necked flask, add 100 mL of distilled water and mix, stir thoroughly at 200 r / min, heat to 50°C in a constant temperature water bath, adjust the pH to 10 with a 5% sodium hydroxide solution, add 0.2 g of epichlorohydrin, maintain 50°C, react for 1 h, and after the reaction is completed, neutralize the pH to 6-7 with a 5% hydrochloric acid solution to obtain a mixed solution I.

[0078] Step 2: Add 200 mL of distilled water and 0.5 g of polyethylene glycol to a beaker, stir and heat to 70°C until completely dissolved, then add 0.44 g of citric acid and 0.5 g of p-toluenesulfonic acid, heat to 90°C in a water bath and react for 1 h to obtain mixed solution II, mix mixed solution I and mixed solution II thoroughly, adjust the pH of the solution to neutral, heat to 90°C in a water bath and react for 1.5 h to obtain mixed solution III.

[0079] Step 3: Cool the mixed solution III to room temperature, add 1.2 g of surfactant and 0.6 g of water retaining agent to the mixed solution III to prepare the dust suppressant solution.

[0080] Comparative Example 1

[0081] Add 1 g of sodium α-olefin sulfonate to the beaker and stir and heat until it is completely dissolved.

[0082] Comparative Example 2

[0083] Weigh 0.7 g of gellan gum into a beaker, add 200 mL of distilled water and heat until dissolved.

[0084] The effects of Examples 5-9 and Comparative Examples 1 and 2 were tested. The following tests were conducted in accordance with the TB / T3210.1-2020 standard for coal sample preparation, and the coal sample of 200 mesh was screened using a standard sieve. The coal was dried in a drying oven at (50±2)°C for 4 hours to remove moisture, and then taken out and placed at room temperature for 2 hours.

[0085] Test Example 1

[0086] The antifreeze properties of the dust suppressants prepared in Examples 5-9 and Comparative Examples 1 and 2 were tested.

[0087] The test method is as follows: equal amounts of coal powder are placed in culture dishes, sprayed with the same mass of Examples 5-9 and Comparative Examples 1 and 2, placed in a drying oven for heating for 12 hours, with the high temperature set at 50°C, then placed in an industrial air conditioner for low temperature freezing for 12 hours, with the low temperature set at -35°C, for 5 cycles, and finally the hardness value measured after freezing is compared with the initial value to calculate the hardness loss rate. The hardness of the cured layer after drying is measured with a Shore hardness tester, and each sample is tested 3 times to take the average value.

[0088] The test results are as follows Figure 1 As shown, Figure 1 The frost resistance experimental data show that the hardness of the solidified layer decreases with the increase of the number of freeze-thaw cycles. As the number of freeze-thaw cycles increases, the cumulative hardness loss of Example 1 is 24.72%, and the frost resistance is the worst. After 5 cycles, the cumulative hardness loss of Example 5 is only 10.21%. It can be seen that the temperature change has little effect on the hardness of the solidified layer of the dust suppression material prepared in Examples 5-9, indicating that under the temperature change of -35-50°C, the performance of the solidified layer is still relatively stable, which can meet the frost resistance requirements in the severe cold environment of the mining area.

[0089] Test Example 2

[0090] The dust suppressants prepared in Examples 5-9 and Comparative Examples 1 and 2 were tested for dust suppression and water retention.

[0091] The test method is: spray the solutions of Examples 5-9 onto the coal powder samples respectively, and spray the solutions of Comparative Examples 1-2 as the control group respectively, set a monitoring point in each of the experimental area and the comparative area, and detect the dust concentration before and after.

[0092] Weigh an equal amount of coal powder and place it in a culture dish, spray the solutions of Examples 5-9 and Comparative Examples 1 and 2 respectively, put it in a constant temperature incubator to eliminate the interference of external factors, set the temperature to 20°C, and take out the sample every 30 minutes for weighing, and calculate the mass difference between the sample and the previous period. The ratio of the difference to the initial total mass is the water loss rate in the corresponding time period.

[0093] The test results are as follows Figure 2 As shown, the dust suppression test of Test Example 2 obtained that the suppression rate of coal dust by spraying the samples of Examples 5-9 exceeded 95%, among which the suppression rates of PM2.5 and PM10 of Example 8 were 97.64% and 98.25%, respectively, which significantly improved the suppression rate of coal dust compared with the comparative example. The water loss rate of each group of dust suppressants increased with time, among which the water loss rates of Examples 4, 8 and 9 were relatively low as a whole, and the water loss rate of Comparative Example 1 was the highest, because the network structure formed by the macromolecular chain enables the chemical dust suppressant to better retain the water stored in itself, so its water loss rate is relatively low as a whole, and the water is less likely to be lost.

[0094] In summary, the dust suppression prepared by the present invention can suppress dust with high efficiency, effectively solve the technical problem of general dust solidification effect in severe cold mining areas, and has good social benefits and considerable economic benefits.

[0095] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A method for preparing a new type of antifreeze and high-adhesion dust suppression material, characterized in that: Prepare according to the following steps: (1) Weigh gellan gum, put it into a container, add water and mix, stir thoroughly, heat to 50-60° C., adjust the pH to 9-10 with alkali solution, add epichlorohydrin dropwise, react for 1-2 hours, and after the reaction is completed, neutralize the pH to 6-7 with hydrochloric acid solution to obtain mixed solution I; (2) Add water and polyethylene glycol to another container, stir and heat until completely dissolved, add citric acid and p-toluenesulfonic acid and heat to 90-95°C to react to obtain mixed solution II, thoroughly mix mixed solution I and mixed solution II, adjust the pH of the solution to neutral, heat to 90-95°C and react for 1.5-2h to obtain mixed solution III; (3) Cool the mixed solution III to room temperature, add a surfactant and a water retaining agent to the mixed solution III, and thus obtain a dust suppressant solution.

2. The method for preparing the novel antifreeze and high-bonding dust suppression material according to claim 1 is characterized in that: In terms of weight, the added amount of each substance is: 5-9 parts of gellan gum, 1.5-2 parts of epichlorohydrin, 2.5-5 parts of polyethylene glycol, 1.4-4.4 parts of citric acid, 1-5 parts of p-toluenesulfonic acid, 2-6 parts of water retaining agent, and 8-12 parts of surfactant.

3. The method for preparing the novel antifreeze and high-bonding dust suppression material according to claim 2 is characterized in that: The water retaining agent is glycerol.

4. The method for preparing the novel antifreeze and high-bonding dust suppression material according to claim 3 is characterized in that: The wetting agent is sodium α-olefin sulfonate.

5. The method for preparing the novel antifreeze and high-adhesion dust suppression material according to any one of claims 1 to 4, characterized in that: Use distilled water.

6. The method for preparing the novel antifreeze and high-bonding dust suppression material according to claim 5 is characterized in that: The alkali solution is a sodium hydroxide solution with a mass concentration of 5%-10%.

7. The method for preparing the novel antifreeze and high-bonding dust suppression material according to claim 6 is characterized in that: The mass concentration of the hydrochloric acid solution is 5%-10%.

8. The method for preparing the novel antifreeze and high-adhesion dust suppression material according to claim 7 is characterized in that: In step (2), citric acid and p-toluenesulfonic acid are added and the reaction is carried out for 1-2 hours.

9. A new type of antifreeze and high adhesion dust suppression material prepared by the method for preparing the new type of antifreeze and high adhesion dust suppression material as described in any one of claims 1 to 8.

10. Use of the new antifreeze and high-adhesion dust suppression material according to claim 9 in coal mine dust suppression.

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