CN104823752A - Water retention and purification blanket used for green roof and manufacturing method thereof - Google Patents
Water retention and purification blanket used for green roof and manufacturing method thereof Download PDFInfo
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- CN104823752A CN104823752A CN201510281193.7A CN201510281193A CN104823752A CN 104823752 A CN104823752 A CN 104823752A CN 201510281193 A CN201510281193 A CN 201510281193A CN 104823752 A CN104823752 A CN 104823752A
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- woven fabrics
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- nonwoven cloth
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
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Abstract
The invention relates to a water retention and purification blanket used for a green roof and a manufacturing method thereof and belongs to the field of building materials. Upper-layer non-woven fabric and middle-layer fabric are sewn through stitch-bonded threads, material fibers having even thickness are loaded between the two layers of fabric, and the surfaces of the fibers are covered with an attapulgite clay layer. The middle-layer non-woven fabric and lower-layer non-woven fabric are connected through a needle punching technology, and a mixture of active carbon granules and red algae powder which are evenly mixed is loaded between the two layers of non-woven fabric. The filtering and water retention blanket is used between a water drainage layer and a planting layer to replace a traditional filtering layer, in this way, soil loss can be prevented, roof runoff can be purified, and a certain water retention function is achieved. The blanket is reasonable in structure, raw materials are sufficient, processing is convenient, the price is low, and the blanket is durable and good in filtering effect.
Description
Technical field
The present invention relates to a kind of roof greening material, be specifically related to a kind of greening roof water conservation water purification blanket and preparation method thereof, belong to building material field.
Background technology
The structure of greening roof is generally structure sheaf, watertight composition, sluicing layer, filter course, plantation layer and the vegetation on it.In existing technology, plantation layer generally uses the base material of artificial preparation, is generally the mixture of coarse particulate material as haydite, river sand and organic matter, fertilizer, table soil.Filter course uses textile product, and effect filters to stop plantation layer thin particulate matter, prevents soil loss.For improving roof greening drought resisting problem, there is patent " filter water retention carpet for roof greening " patent No. ZL200920087198.6 in recent years, although solve a difficult problem for roof greening water and soil conservation, still not solved the problem of Roof Runoff water pollutions.Because particulate in air under urban environment is often containing heavy metal, organic pollutant also can descend slowly and lightly on roof along with rainwater, together with plantation base material in fertilizer, organic matter and and grain fraction, can when rainfall release pollutant, cause Roof Runoff heavy metal, nitrogen phosphorus, organic pollutant to exceed standard.Foreign study shows, the roof runoff quality at green roof initial stage is poor, often needs purified treatment.
For improving the water quality of Roof Runoff, a kind of filter course with the effect of water conservation water purification is needed to replace the filter course of traditional greening roof.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of greening roof water conservation water purification blanket with the effect of water conservation water purification.This blanket can prevent soil loss, and can keep some moisture again, can also purify roof runoff quality.
Technical problem of the present invention adopts following technical proposals to solve:
A kind of greening roof water conservation water purification blanket, comprises upper strata non-woven fabrics, middle level non-woven fabrics and lower nonwoven cloth; The uniform fibrage of thickness is provided with, the fiber surface absorption Concave-convex clay rod in described fibrage between described upper strata non-woven fabrics, middle level non-woven fabrics; Be the mixture of red algae powder and active carbon between middle level non-woven fabrics and lower nonwoven cloth, in mixture, activated carbon granule volume ratio is 20-40%;
Upper strata non-woven fabrics, middle level non-woven fabrics adopt loop bonding sewer together, adopt needling process to be sewed together between middle level non-woven fabrics, lower nonwoven cloth; Or upper strata non-woven fabrics, middle level non-woven fabrics adopt together with loop bonding sewer with lower nonwoven cloth.
Described activated carbon granule particle diameter is 1-3mm.
Described Concave-convex clay rod specific surface area is greater than 300m
2/ g.
Described red algae powder particles diameter is 0.3-0.5mm, and red algae powder is that the powder obtained is ground in red algae drying afterwards.
The present invention also provides the preparation method of above-mentioned greening roof water conservation water purification blanket, comprises the following steps:
Step 1, paves smooth by lower nonwoven cloth;
Step 2, mixes red algae powder with activated carbon granule, paves on lower nonwoven cloth, after covering middle level non-woven fabrics, forms entirety with lower nonwoven cloth by needling process;
Step 3, mix fiber, while spray water smoke to it, subsequently by wetting fiber mix 30 seconds together with the Concave-convex clay rod of drying, and it is dry to face to dry in the air;
Step 4, the smooth middle level nonwoven surface after processing through step 2 that paves of the fiber that step 3 is obtained; And cover upper strata non-woven fabrics;
Step 5, is sewn into entirety with loop bonding line by upper strata non-woven fabrics, middle level non-woven fabrics, adopts needling process to be sewed together between middle level non-woven fabrics, lower nonwoven cloth; Or with loop bonding line, upper strata non-woven fabrics, middle level non-woven fabrics and lower nonwoven cloth are sewn into entirety.
When using in roof greening engineering, the present invention is arranged between plantation layer and sluicing layer.When raining, rainwater carries the heavy metal and the organic pollutant that wash away fine grained clay and dissolving from plantation layer, and a part of particle is retained by non-woven fabrics; The heavy metal ion of dissolving mainly is adsorbed by Concave-convex clay rod and red algae powder; Organic substance in water is mainly tightly held by activated carbon; Some moisture are by fibers adsorption, and attapulgite also absorbs some moisture; Achieve the object of water conservation and purification Roof Runoff.
Therefore, tool of the present invention has the following advantages: 1, rational in infrastructure.By arranging three layers of non-woven fabrics, the particle that roof greening base material runs off can be filtered very well; By adhering to Concave-convex clay rod layer on fiber, increasing adsorption area, being conducive to removing pollutant; Current, after the filtration of upper, middle level non-woven fabrics and fiber, are conducive to the useful effect life-span extending the granular active carbon of lower floor and red algae soil powder; Pollutant is through the filtration of two-layer filtration and three kinds of sorbing materials, and removal effect is good, can purify the Roof Runoff at greening initial stage well.Water-absorption fiber is arranged in upper strata, is also beneficial to Green Roof Plants drought resisting.2, sufficient, easy to process, the low price of raw material, durable in use.Service life is more than 10 years.3, transport and easy to use, can tubular be curled into, be convenient to carrying, scene of being also convenient to paves.4, adaptability is good, by selecting the fiber of different materials and size, realizing different water conservations and requiring and service life; According to the contamination characteristics of Roof Runoff, prepare the Concave-convex clay rod of variety classes, consumption and ratio, activated carbon granule and red algae powder, realize the best removal effect to pollutant in Roof Runoff.
Accompanying drawing explanation
Fig. 1 is a structural representation of greening roof water conservation water purification blanket.
Fig. 2 is another structural representation of this greening roof water conservation water purification blanket.
In figure, upper strata non-woven fabrics 1, middle level non-woven fabrics 2, loop bonding line 3, fibrage 4, lower nonwoven cloth 5, activated carbon granule 6, red algae powder 7.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.
Embodiment 1
Rollable greening roof water conservation water purification blanket in the present embodiment, appearance and size is thickness 20mm, long 5m, wide 3m; Comprise upper, middle and lower-ranking non-woven fabrics, the fiber that the synthetic material between Yi Jishang, middle two-layer nonwoven makes, fiber surface has Concave-convex clay rod layer; Above, between middle two-layer nonwoven, fiber layer thickness is even; In, lay the mixture of the uniform activated carbon granule of thickness and red algae powder between lower two-layer nonwoven.
Wherein, non-woven fabrics used is that polypropylene material makes.The products C oolplus fiber of fiber emerging weaving limited company in adopting.Concave-convex clay rod used adopts Xuyi Jiangsu to produce high-quality Features of Attapulgite Minerals, specific surface area 350m
2/ g.In the mixture of activated carbon granule and red algae powder activated carbon granule and red algae soil powder account for respectively 20% and 80%(volume ratio).Active carbon used selects granular activated carbon, and particle size diameter is at 1-3mm; Select shell class active carbon.Red algae powder used is the seashore red algae of collecting through cleaning, at 80 DEG C after dry 48 hours, is milled to the particle that diameter is 0.3-0.5mm.
In this embodiment, the manufacturing process of greening roof water conservation water purification blanket is:
(1) lower nonwoven cloth is paved smooth;
(2) the red algae powder mixed according to aforementioned proportion and activated carbon granule pave on lower nonwoven cloth, after covering middle level non-woven fabrics, form entirety with lower nonwoven cloth by needling process;
(3) on one side mix fiber, sprays water smoke to it, subsequently by wetting fiber mix 30 seconds together with the Concave-convex clay rod of drying, and dries in the air to face and does.
(4) fiber upper step obtained is smooth to pave in middle level nonwoven surface after step (2) process; And cover upper strata non-woven fabrics;
(5) with loop bonding line, upper, middle and lower-ranking non-woven fabrics is sewn into entirety.
Embodiment 2
Rollable greening roof water conservation water purification blanket in the present embodiment, appearance and size is thickness 12mm, long 3m, wide 2m; Comprise upper, middle and lower-ranking non-woven fabrics, the fiber that the synthetic material between Yi Jishang, middle two-layer nonwoven makes, fiber surface has Concave-convex clay rod layer; Above, between middle two-layer nonwoven, fiber layer thickness is even; In, lay the mixture of the uniform activated carbon granule of thickness and red algae powder between lower two-layer nonwoven.
Wherein, non-woven fabrics used is that polypropylene material makes.Fiber adopts the Delight fiber of Nanya Plastic Cement Industry Co., Ltd.Concave-convex clay rod used adopts Xuyi Jiangsu to produce high-quality Features of Attapulgite Minerals, and specific surface area is greater than 400m
2/ g.In the mixture of activated carbon granule and red algae powder activated carbon granule and red algae soil powder account for respectively 30% and 70%(volume ratio).Active carbon used selects granular activated carbon, and particle size diameter is at 1-3mm; Select wooden class active carbon.Red algae powder used is the seashore red algae of collecting through cleaning, at 80 DEG C after dry 48 hours, is milled to the particle that diameter is 0.3-0.5mm.
The manufacturing process of the greening roof water conservation water purification blanket in the present embodiment is:
(1) lower nonwoven cloth is paved smooth;
(2) pave on lower nonwoven cloth by the red algae powder mixed according to aforementioned proportion and activated carbon granule, after covering middle level non-woven fabrics, form entirety with lower nonwoven cloth by needling process;
(3) on one side mix fiber, sprays water smoke to it, subsequently by wetting fiber mix 30 seconds together with the Concave-convex clay rod of drying, and dries in the air to face and does.
(4) fiber upper step obtained is smooth to pave in middle level nonwoven surface after step (2) process; And cover upper strata non-woven fabrics;
(5) with loop bonding line, upper, middle level non-woven fabrics are sewn into entirety.
Embodiment 3
Rollable greening roof water conservation water purification blanket in the present embodiment, appearance and size is thickness 8mm, long 2m, wide 1m; Comprise upper, middle and lower-ranking non-woven fabrics, the fiber that the synthetic material between Yi Jishang, middle two-layer nonwoven makes, fiber surface has Concave-convex clay rod layer; Above, between middle two-layer nonwoven, fiber layer thickness is even; In, lay the mixture of the uniform activated carbon granule of thickness and red algae powder between lower two-layer nonwoven.
Wherein, non-woven fabrics used is that polypropylene material makes.Fiber adopts the CoolMax fiber of E.I.Du Pont Company.Concave-convex clay rod used adopts Xuyi Jiangsu to produce high-quality Features of Attapulgite Minerals, and specific surface area is greater than 450m
2/ g.In the mixture of activated carbon granule and red algae powder activated carbon granule and red algae soil powder account for respectively 40% and 60%(volume ratio).Active carbon used selects granular activated carbon, and particle size diameter is at 1-3mm; Select column class active carbon.Red algae powder used is the seashore red algae of collecting through cleaning, at 80 DEG C after dry 48 hours, is milled to the particle that diameter is 0.3-0.5mm.
The manufacturing process of the greening roof water conservation water purification blanket in the present embodiment is:
(1) lower nonwoven cloth is paved smooth;
(2) pave on lower nonwoven cloth by the red algae powder mixed according to aforementioned proportion and activated carbon granule, after covering middle level non-woven fabrics, form entirety with lower nonwoven cloth by needling process;
(3) on one side mix fiber, sprays water smoke to it, subsequently by wetting fiber mix 30 seconds together with the Concave-convex clay rod of drying, and dries in the air to face and does.
(4) fiber upper step obtained is smooth to pave in middle level nonwoven surface after step (2) process; And cover upper strata non-woven fabrics;
(5) with loop bonding line, upper, middle level non-woven fabrics are sewn into entirety.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Claims (5)
1. a greening roof water conservation water purification blanket, comprises upper strata non-woven fabrics (1), middle level non-woven fabrics (2) and lower nonwoven cloth (5); It is characterized in that, between described upper strata non-woven fabrics (1), middle level non-woven fabrics (2), be provided with the uniform fibrage of thickness (4), the fiber surface absorption Concave-convex clay rod in described fibrage (4); Be the mixture of red algae powder and active carbon between middle level non-woven fabrics (2) and lower nonwoven cloth (5), in mixture, activated carbon granule volume ratio is 20-40%;
Upper strata non-woven fabrics (1), middle level non-woven fabrics (2) adopt loop bonding sewer together, and middle level non-woven fabrics (2), lower nonwoven cloth adopt needling process to be sewed together between (5); Or upper strata non-woven fabrics (1), middle level non-woven fabrics (2) and lower nonwoven cloth (5) adopt loop bonding sewer together.
2. greening roof water conservation water purification blanket according to claim 1, is characterized in that: described activated carbon granule (6) particle size diameter is 1-3mm.
3. greening roof water conservation water purification blanket according to claim 1 and 2, is characterized in that: described Concave-convex clay rod specific surface area is greater than 300m
2/ g.
4. greening roof water conservation water purification blanket according to claim 1 and 2, is characterized in that: described red algae powder (7) particle diameter is 0.3-0.5mm.
5. the preparation method of greening roof water conservation water purification blanket according to claim 1, is characterized in that comprising the following steps:
Step 1, paves smooth by lower nonwoven cloth (5);
Step 2, mixes red algae powder (7) with activated carbon granule (6), paves on lower nonwoven cloth (5), after covering middle level non-woven fabrics (2), forms entirety with lower nonwoven cloth (5) by needling process;
Step 3, mix fiber, while spray water smoke to it, subsequently by wetting fiber mix 30 seconds together with the Concave-convex clay rod of drying, and it is dry to face to dry in the air;
Step 4, smooth middle level non-woven fabrics (2) surface after processing through step 2 that paves of the fiber that step 3 is obtained; And cover upper strata non-woven fabrics (1);
Step 5, is sewn into entirety with loop bonding line (3) by upper strata non-woven fabrics (1), middle level non-woven fabrics (2), and middle level non-woven fabrics (2), lower nonwoven cloth adopt needling process to be sewed together between (5); Or with loop bonding line (3), upper strata non-woven fabrics (1), middle level non-woven fabrics (2) and lower nonwoven cloth (5) are sewn into entirety.
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| CN201510281193.7A CN104823752B (en) | 2015-05-28 | 2015-05-28 | A kind of greening roof water conservation water purification blanket and preparation method thereof |
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Cited By (4)
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| CN106717987A (en) * | 2017-01-18 | 2017-05-31 | 侯甲 | Plants planter and implantation methods based on macrodome |
| CN107691208A (en) * | 2017-09-12 | 2018-02-16 | 惠州市汇丰无纺制品有限公司 | Cloth embryo and soilless planting method are used in one kind cultivation |
| CN112026282A (en) * | 2020-08-12 | 2020-12-04 | 上海胜义环境科技有限公司 | TSP artificial clay anti-seepage blanket and manufacturing method thereof |
| RU2745930C2 (en) * | 2016-02-22 | 2021-04-05 | Марио БРОВА | Drainage element for plants and method of use thereof |
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| CN104823752B (en) | 2017-07-11 |
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