A kind of moist type dust-inhibitor and its production and use
Technical field
The present invention relates to environmental protection technical field, be a kind of moist type dust-inhibitor and its production and use, needing can be used for dump, road surface, construction site, loose dump, mining area and the various working district that is easy to generate dust of short-term dust suppression.
Background technology
Dust pollution is one of world environments public hazards.Since half a century, people are being devoted to the Prevention Technique of dust pollution always.The particle diameter of general dust is a kind of pellet mostly less than 30um.Particulate matter to the size of the harm of HUMAN HEALTH and particulate matter and chemical constitution and in respiratory tract deposition site substantial connection is arranged.Pellet can enter with people's breathing in the respiratory tract of human body, and HUMAN HEALTH is produced bigger harm.Air atom singly can not cause lung cancer, and with cardiopathic sickness rate much relations is arranged.The technology of dust Control has a variety of methods at present, mainly is divided into dry method control and wet method control.It is dustproof that dry method control refers to that mainly physics hides, and wet method control mainly comprises the chemical dust suppression of watering and various dust-inhibitors.
Adding a cover on dust pile and covering net with mat is traditional dust-suppression method, but owing to sometimes need short-term dust suppression (as 3~5 days), makes operation inconvenience in this way, and adopt and cover net cost height with mat.Another measure of administering dust is wet method control, the method for promptly sprinkling water, and the advantage of this method is easy and simple to handle, is the surface of wetting dust but shortcoming is a moisture, can not be penetrated into dust inside, has so just caused moisture evaporation fast, watering frequency height.Cause the waste and the artificial and cost of equipment increase of great lot of water resources.Also have a kind of chemical dust-inhibitor to be applied to the control of dust at present, it belongs to fixed type, dilute with water can be formed a duricrust on the surface of dust after spraying, thereby the loss of control dust, this dust-inhibitor is applicable to long-term dust suppression, unit dust suppression cost height, and this duricrust can not stand to roll, and can not be applicable to dust suppressions such as road surface.
Summary of the invention
The present invention a kind of moist type dust-inhibitor is provided, it can not only effectively suppress dust from flying, and can absorb water, lock water, make the dust long period keep wetting regime, in addition, this dust-inhibitor is easily degraded, and matrix and powder are not had corrosion, do not contain the composition that any generation is polluted, belong to Green Product.
Dust suppression principle of the present invention mainly relies on the wetting principle of tensio-active agent.The tensio-active agent that contains in the raw material is a kind of amphiphilic structure compound of being made up of hydrophilic group and two kinds of groups of different nature of hydrophobic group, when it is water-soluble, its hydrophilic radical is attracted in the water inlet by water molecules, other hydrophobic group then is ostracised away, has formed the interfacial adsorption layer on the surface of water.Because the existence of this interfacial adsorption layer has caused the surface tension of the aqueous solution lower greatly, thereby has improved the wetting ability of solution greatly.When this tensio-active agent contacts with dust, just between water and dust granules because logical bridge has been erected in adsorption, make that dust is easier to contact, thereby reach wetting purpose with water.In addition, the water-retaining agent that the present invention contains can absorb a large amount of steam at night, to replenish the evaporation of moisture on daytime, reaches the purpose of suction, lock water.
The present invention at first relates to a kind of moist type dust-inhibitor, it is characterized in that being grouped into by following one-tenth:
Polyoxyethylene nonylphenol ether OP-4 2~15%
OP-15 4~24%
Ethylene glycol 0.5~10%
Glycerine 1~10%
Sodium dodecylbenzene sulfonate ABS 0.1~5%
Surplus tap water polishing
The invention still further relates to the preparation method of described moist type dust-inhibitor, it is characterized in that:
Elder generation adds tap water in advance in reactor, be warming up to 40 ℃, adds OP-4, OP-15, ethylene glycol, glycerine, ABS then respectively, is stirred to dissolve fully to mix, and is incubated 30 minutes, goes out the still packing then.
The invention still further relates to the purposes of described moist type dust-inhibitor, it is characterized in that: during use as required the length of dust suppression time dilute with tap water according to 1: 1000~1: 2000 ratio, use spraying car or special-purpose sprinkling equipment then, be sprayed at dump, road surface, construction site, loose dump, the various working districts that are easy to generate dust in mining area and harbour.
Embodiment
Embodiment 1, formulation examples:
Polyoxyethylene nonylphenol ether:
OP-4 10%
OP-15 16%
Ethylene glycol: 5%
Glycerine: 5%
Sodium dodecylbenzene sulfonate ABS:4%
Tap water: 60%.
Embodiment 2, method for making example:
Elder generation adds tap water 60kg in advance in reactor, be warming up to 40 ℃, adds OP-4 10kg, OP-15 16kg, ethylene glycol 5kg, glycerine 5kg, ABS 4kg then respectively, is stirred to dissolve fully to mix, and back insulation 30 minutes goes out the still packing then.
Embodiment 3, purposes example:
Moist type dust-inhibitor of the present invention carries out Preliminary Applications in the coaling wharf goods yard of certain company, has obtained extraordinary anti-dust effect.This goods yard has that coal accumulating quantity is big, storage time short (general 3~5 days), characteristics that turnover is fast.Practical application confirms that after adopting moist type dust-inhibitor of the present invention, anti-dust effect is better than traditional tarpaulin and covers and the watering method, and is suitable with the concretion method effect in a short time.
Index name |
Effect |
Wind loading rating |
≤ 8 grades |
Effective dust suppression phase |
5 days (Dilution ratio 1: 1500) |
The dust suppression rate |
More than 90% |
Administer the back Air quality |
Air pollution index (API)<below 100, reach secondary good more than |
Moist type dust-inhibitor of the present invention and tarpaulin method, watering method, fixed type dust-inhibitor are used contrast and are shown, adopt moist type dust-inhibitor of the present invention not only can effectively suppress dust, and make simple, easy and simple to handle, can reduce the cost of administering dust greatly, more be applicable to the occasion that needs the short-term dust suppression.