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A polymer dust suppressant

A technology of dust suppressant and polymer, which is applied in the field of polymer dust suppressant, can solve the problems of inability to exert dust suppression effect for a long time, no improvement of anti-wind erosion performance, and limited dust suppression ability, so as to achieve good ability to resist wind erosion and suppress open source The effect of permanent dust and rapid dust suppression

Active Publication Date: 2018-02-06
CHENGDU KEHENG ENVIRONMENTAL PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Sprinkling water to suppress dust not only causes a lot of waste of water resources, but also due to the high temperature in summer and fast evaporation in northern my country (generally, it can only be sprayed for about 10 minutes at a time), while the temperature in winter is low and it is easy to freeze, so its practical application is greatly affected. Restrictions: the thatch cover woven cloth of bulk materials has low strength, smoothness, light weight, easy to go for a ride, short service life and high cost, which not only causes waste of resources, but also has troublesome processes of covering and dismantling the cover, which is not conducive to increasing the speed of operation. The one-time investment for wind-shielding and dust-suppressing walls and the construction of closed structures for dust-suppression is huge, and it cannot capture the dust floating in the air. For the operation area where new dust is constantly generated, its dust-suppressing ability is limited; chemical dust-suppressant It has a good effect, but the existing chemical dust suppression agent is weak in resisting wind erosion and compressive strength, which makes it easy to wear out in the process of preventing and controlling open dust sources, and cannot play a long-lasting dust suppression effect
[0004] Existing patents, such as the application number CN201010135471.5, the name of the invention: a polymer environmental protection sand-fixing dust suppressant, the polymer dust suppressant of this patent only has the performance of moisture absorption and water retention, but does not improve its wind erosion resistance; application number 201410319119.5, the name of the invention: self-crosslinking polymer dust suppressant and its preparation method, this patent only improves its weather resistance, water resistance, acid and alkali resistance, and corrosion resistance. The principle of action of the dust agent is cross-linking and curing to form a film, which is difficult to dissipate and easily causes secondary pollution to the environment

Method used

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  • A polymer dust suppressant

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Add an appropriate amount of water into the reaction kettle, add 1% ammonium persulfate aqueous solution and 1% potassium persulfate aqueous solution, stir and heat, raise the temperature to 60~80°C, add sodium dodecylbenzenesulfonate into the reaction kettle, and keep the temperature constant Stir for 30~45min; add glycerol and op-10, stir at constant temperature for 30~45min; add 10% acrylamide aqueous solution, add 1% ammonium persulfate aqueous solution and 1% potassium persulfate aqueous solution again, and react at constant temperature for 1 ~3h, add water glass, stir for 30~45min, stop stirring after mixing evenly, and cool naturally. The obtained inhibitor number is A

[0031] The mass ratio of sodium dodecylbenzenesulfonate, glycerol, acrylamide, op-10, ammonium persulfate, potassium persulfate, water glass and water is 3:15:8:40:0.4:0.6:4: 30.

Embodiment 2

[0033] Place the precursor sodium dodecylbenzenesulfonate, glycerin and acrylamide under nitrogen protection respectively, microwave output power 800W, frequency 2450MHz, treat for 25min, add appropriate amount of water to the reaction kettle, add 1% ammonium persulfate Aqueous solution and 1% potassium persulfate aqueous solution, stir and heat, raise the temperature to 60~80°C, add microwave-treated sodium dodecylbenzenesulfonate into the reaction kettle, stir at constant temperature for 30~45min; add microwave-treated acrylic acid Triol and op-10, stir at constant temperature for 30~45min; prepare microwave-treated acrylamide into a 10% aqueous solution, add acrylamide aqueous solution, add 1% ammonium persulfate aqueous solution and 1% potassium persulfate aqueous solution , constant temperature reaction for 1~3h, add water glass, stir for 30~45min, stop stirring after mixing evenly, and cool naturally. Put the product at an air pressure of 600~700Pa, the volume ratio of n...

Embodiment 3

[0036] The macromolecule inhibitors A and B prepared by the present invention are carried out wind erosion resistance wind tunnel test, and pressure resistance test, and are carried out with commercially available inorganic dust suppressant, commercially available organic dust suppressant and commercially available hybrid dust suppressant. Compared.

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Abstract

The invention discloses a high-polymer dust suppressant, belonging to the field of dust suppression. The high-polymer dust suppressant comprises a polymer molecule (C18H29O3S)m-(C3H5)n-(C3H4N)z, wherein m>=10, n>=115, and z>=15; and the polymer molecule has a spacial three-dimensional network structure. The high-polymer dust suppressant can prevent and treat open dust sources, can be widely used in coal / metal / nonmetal mining areas, mineral slag stock grounds, coal / ore powder transportation, mineral earthwork storage unloading areas, building evacuation, under-construction road way sides, thermal power plants, cement plants, steel plants, metallurgic plants, dust workshops, artificial beaches, desertification areas and other locations, has favorable wind erosion resistance and compression strength, can display the dust suppression effect for a long time, avoids environmental pollution caused by flying dust or abundant waste of resources (such as coal powder), and has the characteristic of environment friendliness.

Description

technical field [0001] The invention relates to a dust suppressant, in particular to a polymer dust suppressant. Background technique [0002] With the development of the economy, dust pollution has become the main pollutant that leads to poor air quality and is difficult to control. Pollution caused by flying dust can easily lead to the destruction of ecological balance, affect the physical and mental health and life safety of surrounding people, cause civil disputes, shorten the service life of operating machines, and restrict regional economic development. Therefore, the importance of dust prevention and control is becoming more and more prominent. my country has a long history of research on stationary industrial pollution sources, especially particulate matter emitted from energy combustion and production processes, and has a relatively complete set of testing, treatment, and management methods. However, there is no systematic research on the dust pollution and control...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K3/22C08F120/56C08F2/44C08J3/28
CPCC08F2/44C08F120/56C08J3/28C08J2333/26C09K3/22Y02A40/22
Inventor 张克江马江平吴树林
Owner CHENGDU KEHENG ENVIRONMENTAL PROTECTION TECH
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