Background technology
PM for particulate matter pollutes and dust pollution is the serious problem of environmental pollution that the vast city of China faces; Particularly China's raw coal output reached 2,500,000,000 tons in 2008, to through more than 80% storage haulage system and arrive the user, these raw coal produce, spontaneous combustion in the transporting procedures, spill, the airborne dust loss; Rough estimates are about 1%; Annual loss coal surpasses 2,000 ten thousand tons, not only wastes energy, and goes back serious environment pollution.
With 10,000 tons coal yards is example, annual loses nearly 100,000 yuan because of the loss coal dust of blowing reaches the 100-200 ton, area, Shijiazhuang coal yard approximately year nearly 100,000,000 tons of all unloading coals, Shijiazhuang City is the big city that receives the dust severe contamination because of the westing Taihang Mountain.The fine coal entering atmosphere of being taken away by wind becomes dust and pellet, severe contamination locality and ambient air quality.The open-air coal yard of China's coal-mine, harbour, harbour, train, shipping, power plant and coal-fired enterprise; Peri-urban, both sides of highway coal yard, the sandstone ash stock ground of managing coal all exists and runs into blowing and raining weather and will produce polluted air and lose and cause energy dissipation; Especially the north, just have four, five months every year and be blow, rainy weather.Developing a kind of can the fire-retardant control agent for coal dust pollution that can prevent dust solid dirt again be a urgent task in coal production, transporting procedures, and energy-saving and emission-reduction are significant.
At present, control agent for coal dust pollution technical study exploitation relatively disperses, and level is uneven, and kind and effect are more single; That plays solid dirt effect can not play fire retardation simultaneously well, and vice versa.At present the control agent for coal dust pollution technology is not also done systematic research, do not have commercial application.Do not have a kind ofly can play fire retardation, can play the novel solid dust pollution control agent technology of solid dirt effect simultaneously again well.
Summary of the invention
Technical problem to be solved by this invention provides and a kind ofly can play fire retardation, can play well the preparation method of the control agent for coal dust pollution of dirt effect admittedly simultaneously again.
The present invention adopts following technical scheme:
The present invention adopts following ratio of weight and number component: Z 150PH (PVA) 1-3 part, industrial starch 2-3 part, sticky rice flour 1-1.5 part, water 85-95 part, polyoxyethylene nonylphenol 1-2 part, sodium humate 1-2 part; After the above-mentioned raw materials mixing; Stir and promptly process; Content of humic acid is 40-60% in the described sodium humate, and sodium content is 10-20%.
Beneficial effect of the present invention:
Characteristics such as that control agent of the present invention has is with low cost, wide material sources, stable performance, of many uses, nontoxic, corrosion rate is low, odorlessness and characteristics such as the resistanceization rate is high, anti-dust effect is obvious, resistance to frost is strong; The technology that in Chinese large-sized colliery, harbour, coal storage field, adopts blending to combine with surface sprinkling makes coal in production, transporting procedures, reach the fire-retardant purpose of solid dirt.
Face the great task of our times energy dilemma and environment protection, the new technique-coal dust Pollution control technology of exploitation and development energy-saving and emission-reduction, significant for the utilization again and the energy security of coal resources in China.
In desert treatment, control agent of the present invention is sprayed at the desertification surface simultaneously, forms protection moisture content, and the mantle of sand-fixed dust-proof is permeable when raining, and do not alkalize in top layer, curing back, oxidation, and can stop the reach of desertifying, and can effectively protect the soil, helps plant-growth.Therefore, the present invention has important practical significance to the environment protection of China.
Dust pollution control agent of the present invention is industrialized dust pollution control agent, also may command building materials dust of may command dust storm again, coal dust etc.About 1,680,000 square kilometres of existing desert of China and sandy land; Account for 17% of territory land area, 2460 square kilometres of desertification propagation rates are arranged every year, explain that China control desertification technology requires study and improves; According to forest department's introduction; Country calendar year 2001 to 2010 year, drop into 6,000,000,000 Renminbi and be used for desertifying and administer (refer to capital, Tianjin, open, Hebei one band), therefore promoting dust pollution control agent of the present invention has good social benefit and environmental benefit.
The present invention may be used on following three kinds of occasions:
A, be applied in station, harbour, power plant, open-air coal yard, unit train is first-class, does not influence the use of ature of coal and coal;
B, be applied in areas, the face of land such as mound, prone soil and travel fatigue pollution;
C, be positioned at the use (like Calcium Carbide Ash, flue dust etc.) of the discarded dust of large-scale construction site and enterprise.
Dust pollution control agent product of the present invention is colourless, liquid with no taste, and meta-alkalescence is nontoxic, is prone to store, and whole production technology does not have any three wastes discharge, does not contain harmful elements such as arsenic, mercury, lead, does not influence the use of ature of coal and coal, does not have environmental pollution.
Use dust pollution control agent of the present invention can form one deck protective layer rapidly, stop air directly to contact, make fine coal reach the fire-retardant effect of solid dirt more easily with the coal grain in coal particle surface.
Control agent of the present invention has freeze proof, heat-stable characteristics, under-15 ℃-39 ℃, all can normally use.
On March 12nd, 2009, product of the present invention carries out spray test, about 500 square metres of spray area on Shijiazhuang Xi Gang head building team sand drift; The sprinkling consumption is 300kg, sprays back 20 hours at the surperficial conjunctiva of sand drift, and wind-force reached 5 grades in second day; And sand drift surface conjunctiva is intact, dust raising phenomenon do not occur, May through two moderate rains after; The water rapid permeability is inner to sand drift, and the no any destruction in surface is still intact so far.
In December, 2008, the friendship coal yard carries out spray test to product of the present invention in Shijiazhuang, and the coal dust area reaches more than 1000 square metre; The about 800kg of product consumption of the present invention sprays the back 3 days snow that spots, and rainwater is seeped in the dump; Coal surface conjunctiva; The non-cracking phenomenon, no coal dust flies upward phenomenon, and does not influence the use of ature of coal and coal.
Embodiment
Embodiment one
Adopt following ratio of weight and number component: 1 part of Z 150PH (PVA), 3 parts of industrial starch, 1 part of sticky rice flour, 85 parts in water, 1 part of polyoxyethylene nonylphenol, 1 part of sodium humate; After the above-mentioned raw materials mixing; Stir and promptly process; Content of humic acid is 40% in the described sodium humate, and sodium content is 10%.
Embodiment two
Adopt following ratio of weight and number component: 2 parts of Z 150PH (PVA), 2.5 parts of industrial starch, 1.5 parts of sticky rice flours, 90 parts in water, 2 parts of polyoxyethylene nonylphenols, 2 parts of sodium humates; After the above-mentioned raw materials mixing; Stir and promptly process; Content of humic acid is 50% in the described sodium humate, and sodium content is 15%.
Embodiment three
Adopt following ratio of weight and number component: 3 parts of Z 150PH (PVA), 2 parts of industrial starch, 1.2 parts of sticky rice flours, 95 parts in water, 1.5 parts of polyoxyethylene nonylphenols, 1.5 parts of sodium humates; After the above-mentioned raw materials mixing; Stir and promptly process; Content of humic acid is 60% in the described sodium humate, and sodium content is 20%.