Road dust suppressant and production process thereof
By stirring the crushed wood waste and surfactant in a specific proportion and adding silica to process it, an environmentally friendly and easily degradable road dust inhibitor was prepared, which solved the problems of poor dust suppression effect and uneco-friendly in the prior art. , achieving long-term dust suppression and environmental adaptability.
Patent Information
- Application Number
- CN202310772629.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-06-28
- Publication Date
- 2024-12-31
AI Technical Summary
Existing road dust suppressors have problems such as poor dust suppression, unenvironmental and difficult to degrade, especially when crushed by large load trucks.
Using a combination of a mixed solution and a synergist, the crushed wood waste, acrylic and carboxylic acid surfactant were stirred in a specific proportion and then added to sodium diacetate, left to stand and shake, and then added silica for reflux treatment. , mashed into powder, increase hardness, and dried and filtered through specific process steps to finally prepare an environmentally friendly and easily degradable road dust inhibitor.
The dust inhibitor lasts for 15 days under static conditions and lasts for 7 days under dynamic conditions. It has efficient anti-mold, anti-corrosion and fresh preservation effects. It is free of corrosion to the road surface and vehicles. It is suitable for a wide range of ambient temperatures and is at a level 10 wind speed. Dust concentration is below standard.
Smart Images
Figure CN119220224A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of dust suppressant production, in particular to a road dust suppressant and a production process thereof. Background Art
[0002] Due to the rapid development of society, economy, urbanization and industrialization, it is inevitable that more and more serious environmental problems have been brought about. Among them, inhalable particles in the air, such as dust, are an important cause of environmental problems. Related studies have shown that the increase in human mortality is related to inhalable particles in the air, which can cause health problems such as cancer, deformity, and mutation. Therefore, strict control and management of the emission of particles such as dust in the air is of great significance for improving air conditions, reducing the occurrence of haze weather, and protecting human health, and is an issue that needs to be solved urgently.
[0003] Patent No. CN201210130914.0 discloses a road dust suppressant, wherein the water-soluble high molecular polymer is a compound of one or more of soluble cellulose derivatives, soluble starch derivatives, polyvinyl alcohol, sodium polyacrylate, and polyacrylamide. Among them, the soluble cellulose derivatives include carboxymethyl cellulose, methyl cellulose, ethyl cellulose, hydroxypropyl methyl cellulose, hydroxyethyl cellulose and their sodium salts, and the soluble starch derivatives include etherified starch, dextrin, syrup, carboxymethyl starch, hydroxypropyl starch, etc. The hygroscopic moisturizing agent is a mixture of inorganic salts and organic matter with hygroscopic properties. Among them, the inorganic salt with hygroscopic properties can be selected from well-known hygroscopic moisturizing products such as calcium chloride dihydrate, magnesium chloride hexahydrate, and sodium silicate; the organic matter is specifically urea or organic polyols such as glycerol, butanediol, polyethylene glycol, propylene glycol, hexanediol, xylitol, polypropylene glycol, and sorbitol.
[0004] This patent solves the problem that the dust suppressant has a short effective dust suppression time, cannot withstand the crushing of large-scale heavy-duty trucks, and has an unsatisfactory dust suppression effect; however, it does not solve the problem that it is not environmentally friendly, is not easy to degrade, and has a poor dust suppression effect. Summary of the invention
[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a road dust suppressant and a production process thereof.
[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A road dust suppressant comprises a mixed solution and a synergist, wherein the mixed solution is prepared by: The crushed wood waste, acrylic acid and a surfactant with carboxylic acid as the main raw material are added to 20 parts of sodium diacetate in a mass ratio of 50:45:5 and stirred. After standing, the mixture is placed in a 39% formaldehyde aqueous solution, and the mixed solution is stirred again. The mixed and stirred mixed solution is placed in a vacuum dish at a temperature of -10°C and allowed to stand for 30 minutes.
[0007] Preferably, the mixed solution is placed in a sealed vacuum dish, chlorine gas is filled into the inner cavity, and chlorine vapor is used to impact the top layer of the mixed solution from top to bottom, and the mixed solution is shaken. After shaking, the mixed solution is allowed to stand for 50 minutes, and the filter residue remaining in the shaking process is extracted, and the mixed solution after processing is taken out for use.
[0008] Preferably, the dried residue after standing and suction filtration is placed under infrared rays for sterilization and cooled to 10°C.
[0009] Preferably, the preparation method of the synergist is: The mixed gel-like substance after stirring and mixing is cooled and allowed to stand, and silicon dioxide is added for reflux treatment. After the treatment, the solidified gel-like substance is crushed into pieces, and homogeneous catalysis is performed to increase the hardness of the pieces. The gel-like substance is crushed to a size of 18 meshes, and the powder after treatment is ground, filtered and dried before being bottled and shipped. The dust suppressant has the effects of high-efficiency mildew prevention, antisepsis and preservation. It is made of agricultural waste, domestic garbage, industrial waste and other raw materials. It is environmentally friendly and easy to degrade. The dust suppression effect on the road can last for 15 days in static state and 7 days in dynamic state.
[0010] Preferably, the cooling temperature of the stirred mixed gel is -10°C, and the gas generated after the benzoic acid solution and the carbon tetrachloride solvent are added and mixed is recovered.
[0011] Preferably, the crushed and solidified gel-like substance is processed using a tissue crusher at a processing speed of 1000 revolutions per minute.
[0012] A method for preparing a road dust suppressant comprises the following steps: S1: mixing the mixed solution with the enhancer; S2: pouring the mixed combination of the two into clean water for mixing and stirring, and raising the temperature of the synergist; S3: waiting for the combined agent to be slowly heated to a preset threshold temperature so that the precipitate is deposited at the bottom of the inner cavity wall of the sealed container; S4: extracting the precipitated material from the bottom of the inner cavity wall of the sealed container, stirring the combined agent again after extraction, and letting it stand for 30 minutes after stirring; S5: extracting the residual gas in the sealed container through a vacuum extraction mechanism; S6: Packaging, factory delivery, no harm to plants and animals, no corrosion to roads and vehicles, the ratio of dust suppressant to water is >1:500, the dosage is small, it is easy to adjust the concentration of dust suppressant, improve the practicality of dust suppressant, suitable for most ambient temperatures, effective at -15℃-70℃, good wind resistance, and the dust concentration is <standard concentration at a wind speed of 10.
[0013] Preferably, the stirring speed of the stirring and standing in step S2 is 1500 rpm.
[0014] Compared with the prior art, the present invention has the following beneficial effects: Dust suppressants have high efficiency in preventing mildew, corrosion and preserving freshness. Made from agricultural waste, domestic garbage, industrial waste and other raw materials, it is environmentally friendly and easily degradable.
[0015] The dust suppression effect on roads can last for 15 days in static state and 7 days in dynamic state.
[0016] It is harmless to plants and animals and does not corrode roads and vehicles.
[0017] The ratio of dust suppressant to water is >1:500, the dosage is small, and the concentration of dust suppressant is easy to adjust, thus improving the practicability of dust suppressant.
[0018] It is suitable for most ambient temperatures and can be effective at -15℃-70℃.
[0019] It has good wind resistance, and the dust concentration is less than the standard concentration at a wind speed of level 10.
[0020] The crushed wood waste, acrylic acid and a surfactant with carboxylic acid as the main raw material are added to 20 parts of sodium diacetate in a mass ratio of 50:45:5 and stirred. After standing, the mixture is placed in a 39% formaldehyde aqueous solution, and the mixed solution is stirred again. The mixed and stirred mixed solution is placed in a vacuum dish at a temperature of -10°C and allowed to stand for 30 minutes.
[0021] The mixed solution is placed in a sealed vacuum dish, and chlorine gas is filled into the inner cavity. The top layer of the mixed solution is impacted from top to bottom with chlorine vapor, and the mixed solution is shaken. After shaking, the mixed solution is allowed to stand for 50 minutes, and the filter residue remaining in the shaking process is extracted. The processed mixed solution is taken out and set aside.
[0022] The mixed gel-like substance after stirring and mixing is cooled and allowed to stand, and silicon dioxide is added for reflux treatment. After the treatment, the solidified gel-like substance is crushed into pieces, and homogeneous catalysis is carried out to increase the hardness of the pieces. The gel-like substance is crushed into a size of 18 meshes, and the powder after the treatment is ground, filtered and dried before being bottled and shipped. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 The present invention provides a production process flow chart of a road dust suppressant. Implementation
[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0025] Reference Figure 1 , a road dust suppressant, comprising a mixed solution and a synergist, wherein the mixed solution is prepared by: The crushed wood waste, acrylic acid and a surfactant with carboxylic acid as the main raw material are added to 20 parts of sodium diacetate in a mass ratio of 50:45:5 and stirred. After standing, the mixture is placed in a 39% formaldehyde aqueous solution, and the mixed solution is stirred again. The mixed and stirred mixed solution is placed in a vacuum dish at a temperature of -10°C and allowed to stand for 30 minutes.
[0026] Preferably, the mixed solution is placed in a sealed vacuum dish, chlorine gas is filled into the inner cavity, and chlorine vapor is used to impact the top layer of the mixed solution from top to bottom, and the mixed solution is shaken. After shaking, the mixed solution is allowed to stand for 50 minutes, and the filter residue remaining in the shaking process is extracted, and the mixed solution after processing is taken out for use.
[0027] Preferably, the dried residue after standing and suction filtration is placed under infrared rays for sterilization and cooled to 10°C.
[0028] Preferably, the preparation method of the synergist is: The mixed gel-like substance after stirring and mixing is cooled and allowed to stand, and silicon dioxide is added for reflux treatment. After the treatment, the solidified gel-like substance is crushed into pieces, and homogeneous catalysis is carried out to increase the hardness of the pieces. The gel-like substance is crushed into a size of 18 meshes, and the powder after the treatment is ground, filtered and dried before being bottled and shipped.
[0029] Preferably, the cooling temperature of the stirred mixed gel is -10°C, and the gas generated after the benzoic acid solution and the carbon tetrachloride solvent are added and mixed is recovered.
[0030] Preferably, the crushed and solidified gel-like substance is processed using a tissue crusher at a processing speed of 1000 revolutions per minute.
[0031] A method for preparing a road dust suppressant comprises the following steps: S1: mixing the mixed solution with the enhancer; S2: pouring the mixed combination of the two into clean water for mixing and stirring, and raising the temperature of the synergist; S3: waiting for the combined agent to be slowly heated to a preset threshold temperature so that the precipitate is deposited at the bottom of the inner cavity wall of the sealed container; S4: extracting the precipitated material from the bottom of the inner cavity wall of the sealed container, stirring the combined agent again after extraction, and letting it stand for 30 minutes after stirring; S5: extracting the residual gas in the sealed container through a vacuum extraction mechanism; S6: Packing and delivery.
[0032] Preferably, the stirring speed of the stirring and standing in step S2 is 1500 rpm.
[0033] Dust suppressants have high efficiency in preventing mildew, preventing corrosion and preserving freshness. They are made of agricultural waste, domestic garbage, industrial waste and other raw materials. They are environmentally friendly and easy to degrade. The dust suppression effect on roads can last for 15 days in static state and 7 days in dynamic state. They are harmless to plants and animals and have no corrosion to the road surface and vehicles. The ratio of dust suppressant to water is >1:500, and the dosage is small, which makes it easy to adjust the concentration of dust suppressant, thus improving the practicality of dust suppressant. It is suitable for most ambient temperatures and can be effective at -15℃-70℃. It has good wind resistance, and the dust concentration is <standard concentration at a wind speed of level 10.
[0034] In summary, the crushed wood waste, acrylic acid and a surfactant with carboxylic acid as the main raw material are added to 20 parts of sodium diacetate in a mass ratio of 50:45:5 and stirred, placed in a 39% formaldehyde aqueous solution after standing, and the mixed solution is stirred again. The mixed solution after mixing and stirring is placed in a vacuum dish at a temperature of -10°C and allowed to stand for 30 minutes. The mixed solution is placed in a sealed vacuum dish, chlorine gas is filled into its inner cavity, and the top layer of the mixed solution is impacted from top to bottom by chlorine vapor, and the mixed solution is shaken. After shaking, it is allowed to stand for 50 minutes, and the filter residue remaining in the shaking process is extracted, and the mixed solution after processing is taken out for standby use. The mixed gel-like substance after stirring and mixing is cooled and allowed to stand, and silicon dioxide is added for reflux treatment. After the treatment is completed, the solidified gel-like substance is crushed into pieces, and homogeneous catalysis is performed to improve the hardness of the piece-like substance, and the gel-like substance is crushed to a size of 18 meshes. The powder after the treatment is ground, filtered and dried, and then bottled and shipped. The mixed solution is mixed with the synergist, and the mixed combination is poured into clean water for mixing and stirring, and the temperature of the synergist is increased, and the combination is slowly heated to a preset threshold temperature, so that the precipitate is precipitated at the bottom of the inner cavity wall of the sealed container, and the precipitated material is extracted from the bottom of the inner cavity wall of the sealed container, and the extracted combination is stirred again. After stirring, it is allowed to stand for 30 minutes, and the residual gas in the sealed container is extracted by a vacuum extraction mechanism, and it is packaged and shipped.
[0035] The above is the entire working principle of the present invention.
[0036] In the present invention, the installation method, connection method or setting method of all the components mentioned above are common mechanical methods, and the specific structures, models and coefficient indicators of all its components are its own technology. As long as it can achieve its beneficial effects, it can be implemented, so it will not be elaborated.
[0037] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.
[0038] In the present invention, unless otherwise specified, the directional words contained in the terms such as "up, down, left, right, front, back, inside, outside, vertical, horizontal" only represent the orientation of the term in normal use, or are common names understood by those skilled in the art, and should not be regarded as limitations on the term. At the same time, number series nouns such as "first", "second" and "third" do not represent specific quantities and orders, but are merely used to distinguish names. Moreover, the terms "include", "comprise" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or equipment that includes a series of elements includes not only those elements, but also includes other elements that are not explicitly listed, or also includes elements inherent to such process, method, article or equipment.
Claims
1. A road dust suppressant, characterized in that: The invention comprises a mixed solution and a synergist, and the preparation method of the mixed solution is as follows: The crushed wood waste, acrylic acid and a surfactant with carboxylic acid as the main raw material are added to 20 parts of sodium diacetate in a mass ratio of 50:45:5 and stirred. After standing, the mixture is placed in a 39% formaldehyde aqueous solution, and the mixed solution is stirred again. The mixed and stirred mixed solution is placed in a vacuum dish at a temperature of -10°C and allowed to stand for 30 minutes.
2. A road dust suppressant according to claim 1, characterized in that: The mixed solution is placed in a sealed vacuum dish, and chlorine gas is filled into the inner cavity. The top layer of the mixed solution is impacted from top to bottom with chlorine vapor, and the mixed solution is shaken. After shaking, the mixed solution is allowed to stand for 50 minutes, and the filter residue remaining in the shaking process is extracted. The processed mixed solution is taken out and set aside.
3. A road dust suppressant according to claim 2, characterized in that: The dried residue was placed under infrared rays for sterilization and cooled to 10°C.
4. A road dust suppressant according to claim 1, characterized in that: The preparation method of the synergist is: The mixed gel-like substance after stirring and mixing is cooled and allowed to stand, and silicon dioxide is added for reflux treatment. After the treatment, the solidified gel-like substance is crushed into pieces, and homogeneous catalysis is carried out to increase the hardness of the pieces. The gel-like substance is crushed into a size of 18 meshes, and the powder after the treatment is ground, filtered and dried before being bottled and shipped.
5. A road dust suppressant according to claim 4, characterized in that: The cooling temperature of the stirred mixed gel is -10°C, and the gas generated after the benzoic acid solution and the carbon tetrachloride solvent are added and mixed is recovered.
6. A road dust suppressant according to claim 4, characterized in that: The crushed and solidified gel-like substance is processed by a tissue crusher at a processing speed of 1000 revolutions / min.
7. A method for preparing a road dust suppressant, characterized in that: The following steps are involved: S1: mixing the mixed solution with the enhancer; S2: pouring the mixed combination of the two into clean water for mixing and stirring, and raising the temperature of the synergist; S3: waiting for the combined agent to be slowly heated to a preset threshold temperature so that the precipitate is deposited at the bottom of the inner cavity wall of the sealed container; S4: extracting the precipitated material from the bottom of the inner cavity wall of the sealed container, stirring the combined agent again after extraction, and letting it stand for 30 minutes after stirring; S5: extracting the residual gas in the sealed container through a vacuum extraction mechanism; S6: Packing and delivery.
8. The method for preparing a road dust suppressant according to claim 7, characterized in that: The stirring speed of the stirring and standing in step S2 is 1500 rpm.