CN106739196B - Composite earthwork cloth and preparation method thereof and manufacturing equipment - Google Patents

Composite earthwork cloth and preparation method thereof and manufacturing equipment Download PDF

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Publication number
CN106739196B
CN106739196B CN201710096976.7A CN201710096976A CN106739196B CN 106739196 B CN106739196 B CN 106739196B CN 201710096976 A CN201710096976 A CN 201710096976A CN 106739196 B CN106739196 B CN 106739196B
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China
Prior art keywords
layer
fiber
composite earthwork
cloth
earthwork cloth
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CN201710096976.7A
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CN106739196A (en
Inventor
姜瑞明
李洪昌
聂松林
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TIANDING FENGJU PROPYLENE MATERIAL TECHNOLOGY Co.,Ltd.
TIANDINGFENG NONWOVENS Co.,Ltd.
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Dingfeng Polypropylene Materials Technology Co Ltd Days
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Priority to CN201710096976.7A priority Critical patent/CN106739196B/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
    • B32B3/26Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/266Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/02Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/06Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00Ancillary operations in connection with laminating processes
    • B32B38/18Handling of layers or the laminate
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022Non-woven fabric
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/028Net structure, e.g. spaced apart filaments bonded at the crossing points
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/005Soil-conditioning by mixing with fibrous materials, filaments, open mesh or the like
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2300/00Materials
    • E02D2300/0085Geotextiles
    • E02D2300/009Geotextiles with multi-layer structure

Abstract

The present invention provides a kind of composite earthwork cloth, wherein, the composite earthwork cloth includes the multilayer geotextile layer and at least one layer fiber-reinforced layer of stacking, the fiber-reinforced layer is arranged between two layers of geotextile layer, in geotextile layer described in multilayer, the effective aperture of at least two layers geotextile layer is different.The present invention also provides a kind of preparation method of composite earthwork cloth and manufacturing equipments.The composite earthwork cloth intensity with higher, and manufacturing process is simple.

Description

Composite earthwork cloth and preparation method thereof and manufacturing equipment
Technical field
The present invention relates to geotextiles fields, and in particular, to the manufacturing method of a kind of composite earthwork cloth, the composite earthwork cloth And a kind of manufacturing equipment for manufacturing the composite earthwork cloth.
Background technique
The advantages that non-woven geotextile is because of good extension property, mechanical property and horizontal permeation strainability, it is wide It is general to be applied to water conservancy, electric power, highway, railway, airport, harbour, enclose tideland for cultivation, environmental protection, flood fighting and various undergrounds, the buildings work such as underwater Journey field.Currently, applying the geotextiles used in filtering and anti-filter is mostly single layer geotextiles, and by soil in use environment The influence of grain diameter and gravel partial size causes the fibre fineness of geotextiles limited, so as to cause geotextiles thickness by Limit, and then it is relatively thin to result in geotextiles, is easy in use process impaired.
Therefore, the intensity for how improving geotextiles becomes this field technical problem urgently to be resolved.
Summary of the invention
The purpose of the present invention is to provide a kind of composite earthwork cloth, the composite earthwork cloth preparation method, to manufacture this compound The manufacturing equipment of geotextiles, the composite earthwork cloth intensity with higher, and manufacturing process is simple.
To achieve the goals above, as one aspect of the present invention, a kind of composite earthwork cloth is provided, wherein described multiple The multilayer geotextile layer and at least one layer of fiber-reinforced layer that geotextiles include stacking are closed, the fiber-reinforced layer setting is in two layers of institute It states between geotextile layer, in geotextile layer described in multilayer, the effective aperture of at least two layers geotextile layer is different.
Preferably, one layer of fiber-reinforced layer is provided between geotextile layer described in two layers of arbitrary neighborhood, and described The effective aperture of the geotextile layer of fiber-reinforced layer two sides is different.
Preferably, the composite earthwork cloth includes two layers of geotextile layer.
The fibre fineness for being preferably made from one layer of fiber in two layers of geotextile layer is 3D-6D, and two layers of institute is made The fibre fineness for stating another layer of fiber in geotextile layer is 11D-15D.
Preferably, fibre fineness is the grammes per square metre of the geotextile layer of 3D-6D in 50g/m2To 110g/m2Between, fibre fineness is The grammes per square metre of the geotextile layer of 11D-15D is in 50g/m2To 200g/m2Between.
Preferably, the fiber-reinforced layer includes grid cloth.
Preferably, the fiber-reinforced layer includes glass fiber reticular cloth and/or polyethylene grid cloth, the fiber-reinforced layer Grammes per square metre is in 110g/m2To 190g/m2Between.
Preferably, at least one layer in geotextile layer described in multilayer includes polypropylene filament geotextiles.
As another aspect of the present invention, a kind of preparation method of composite earthwork cloth is provided, wherein the composite earthwork Cloth is above-mentioned composite earthwork cloth provided by the present invention, and the preparation method includes:
Form at least one layer of geotextiles web;
Fiber-reinforced layer is laid at least one layer of geotextile layer;
It is laid at least one layer of geotextiles web, on the fiber-reinforced layer to obtain presoma;
The presoma is carried out shaping, to obtain composite earthwork cloth, the composite earthwork cloth includes the soil as described in multilayer The effective aperture of the multilayer geotextile layer that work measuring fiber net is formed, at least two layers geotextile layer is different.
Preferably, the presoma includes two layers of geotextiles web and one layer of fiber-reinforced layer.
Preferably, the presoma is carried out shaping, to obtain the composite earthwork cloth the step of include:
Agent is lubricated to the presoma to arrange;
Presoma after arranging to lubricant carries out pinprick reinforcement;
Thermal finalization is carried out to the presoma after pinprick reinforcement, to obtain the composite earthwork cloth.
Preferably, after being arranged to lubricant presoma carry out pinprick reinforcement the step of in, needling density 100/ cm2To 260/cm2Between a.
Preferably, to after pinprick reinforcement presoma carry out thermal finalization the step of in, heat setting temperature at 100 DEG C extremely Between 140 DEG C.
As still another aspect of the invention, a kind of manufacturing equipment of composite earthwork cloth is provided, wherein the manufacturing equipment Include:
Spinning machine, the spinning machine form multilayer geotextiles for spinning geotechnological measuring fiber, and using the geotechnological measuring fiber The effective aperture of web, at least two layers geotextiles web is different;
Spreading machine, the spreading machine are used to fiber-reinforced layer be mated formation at least one layer of geotextiles web, and At least one layer of geotextiles web can also be laid on the fiber-reinforced layer by the spinning machine, to obtain forerunner Body;
Shaping equipment, the shaping equipment is for carrying out shaping the presoma, to obtain the composite earthwork cloth.
Preferably, the shaping equipment includes finishing agent system, pinprick reinforcement module and thermal finalization module,
The finishing agent system is located at the downstream of the spinning machine, for providing lubricant to the presoma;
The pinprick reinforcement module is located at the downstream of the finishing agent system, for lubricant treated presoma into Row pinprick reinforcement;
The thermal finalization module is located at the downstream of the pinprick reinforcement module, for carrying out to the presoma after pinprick reinforcement Heat-shaping, to obtain the composite earthwork cloth.
Preferably, the manufacturing equipment further includes cloth storage device and up- coiler, and the cloth storage device is located at sizing dress Downstream is set, the composite earthwork cloth for obtaining the shaping equipment carries out trimming, and the up- coiler is located at the storage cloth Device downstream, for being wound in rolls to the composite earthwork cloth after trimming.
Multilayer (including geotextile layer and fiber-reinforced layer) in the composite earthwork cloth passes through same step heat setting process It is formed as one, therefore, each layer in the composite earthwork cloth is not easy to disengage.
When the composite earthwork cloth is applied in filtering and anti-filter application, the lesser geotextile layer of effective aperture can have Effect stops fine grained to pass through, also, since there are the biggish geotextile layers of effective aperture in the composite earthwork cloth, so that described Composite earthwork cloth has good water penetration.Also, the fiber-reinforced layer makes the composite earthwork cloth with higher strong Degree, extends the service life of the composite earthwork cloth.
Detailed description of the invention
The drawings are intended to provide a further understanding of the invention, and constitutes part of specification, with following tool Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the schematic diagram of composite earthwork cloth provided by the present invention;
Fig. 2 is the flow chart of preparation method provided by the present invention;
Fig. 3 is the schematic diagram of the manufacturing equipment of composite earthwork cloth provided by the present invention.
Description of symbols
10: geotextile layer 20: fiber-reinforced layer
110: extruder 120: metering pump
130: manifold 140: sub-wire pendulum
150: lace curtaining 200: spreading machine
300: shaping equipment 310: finishing agent system
320: pinprick reinforcement module 330: thermal finalization module
410: cloth storage device 420: up- coiler
Specific embodiment
Below in conjunction with attached drawing, detailed description of the preferred embodiments.It should be understood that this place is retouched The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
As one aspect of the present invention, a kind of composite earthwork cloth is provided, as shown in Figure 1, the composite earthwork cloth includes The multilayer geotextile layer 10 of stacking and at least one layer of fiber-reinforced layer 20, the setting of fiber-reinforced layer 20 two layers geotextile layer 10 it Between, in multilayer geotextile layer 20, the effective aperture of at least two layers geotextile layer 10 is different.
Since the composite earthwork cloth includes fiber-reinforced layer 20, the composite earthwork cloth intensity with higher, To have longer service life.Since the effective aperture of at least two layers geotextile layer 10 is different, in addition geotextile layer 10 it Between be provided with fiber-reinforced layer 20, therefore, the composite earthwork cloth has good three-dimensional gap structure.
Preferably, the multilayer in the composite earthwork cloth (including geotextile layer and fiber-reinforced layer) is fixed by same step heat Type technique is formed as one, and therefore, each layer in the composite earthwork cloth is not easy to disengage.
When the composite earthwork cloth is applied in filtering and anti-filter application, the lesser geotextile layer of effective aperture can have Effect stops fine grained to pass through, also, since there are the biggish geotextile layers of effective aperture in the composite earthwork cloth, so that described Composite earthwork cloth has good water penetration.Also, the fiber-reinforced layer makes the composite earthwork cloth with higher strong Degree, extends the service life of the composite earthwork cloth.
In order to increase the thickness of composite earthwork cloth and increase the intensity of composite earthwork cloth, it is preferable that two layers of soil of arbitrary neighborhood One layer of fiber-reinforced layer 20, and the effective aperture of the geotextile layer 10 of 20 two sides of fiber-reinforced layer are provided between work layer of cloth 10 It is different.
In the present invention, not to the number of plies of geotextile layer 10 in composite earthwork cloth and the number of plies of fiber-reinforced layer 20 Special regulation, in order to reduce cost, it is preferable that as shown in Figure 1, the composite earthwork cloth includes two layers of geotextile layer 10.
In the present invention, the specific structure of geotextile layer 10 is not particularly limited, in order to enable the composite earth Work cloth is suitable for filtering and anti-filter field, it is preferable that the fibre fineness of one layer in two layers of geotextile layer of fiber is made For 3D-6D, the fibre fineness that another layer in two layers of geotextile layer of fiber is made is 11D-15D, so that two layers The effective aperture of geotextile layer 10 is different.
Preferably, the grammes per square metre for the geotextile layer that fibre fineness is 3D-6D is 50g/m2To 110g/m2, fibre fineness 11D- The grammes per square metre of the geotextile layer of 15D is 50g/m2To 200g/m2
In the present invention, there is no special requirement to the specific structure of fiber-reinforced layer 20.For example, can use high-strength fibre Dimension (carbon fiber etc.) laying forms fiber-reinforced layer 20.For the ease of being laid with, it is preferable that fiber-reinforced layer 20 may include Scrim layer.Since grid cloth has formed, when preparing the composite earthwork cloth, it is only necessary to be moved back grid cloth using unwinder Around being laid on the fiber web layer that geotextile layer is made.
In the present invention, to the material of grid cloth, there is no special requirements.For example, grid cloth can be glass fiber reticular cloth And/or polyethylene grid cloth.
In order to enable composite earthwork cloth is suitable for filtering the intensity with anti-filtration art, effectively enhancing composite earthwork cloth, it is excellent Selection of land, the grammes per square metre of the fiber-reinforced layer are 110g/m2To 190g/m2
In order to improve the acidproof alkali ability of composite earthwork cloth, it is preferable that at least one layer of packet in geotextile layer described in multilayer Include polypropylene filament geotextiles.It is further preferred that all geotextile layers include polypropylene filament geotextiles.
As another aspect of the present invention, the preparation method of above-mentioned composite earthwork cloth provided by the present invention is provided, In, as shown in Fig. 2, the preparation method includes:
In the step s 100, at least one layer of geotextiles web is formed;
In step s 200, fiber-reinforced layer is laid at least one layer of geotextile layer;
In step S300, it is laid at least one layer of geotextiles web, on the fiber-reinforced layer to obtain presoma;
In step S400, the presoma is carried out shaping, to obtain composite earthwork cloth, the composite earthwork cloth includes The effective aperture of the multilayer geotextile layer that the geotextiles web as described in multilayer is formed, at least two layers geotextile layer is different.
In composite earthwork cloth preparation method provided by the present invention, it is initially formed the presoma, then again in same step Suddenly multilayered structure composite setting can always be formed composite earthwork cloth by (that is, step S400).Be respectively formed geotextile layer then The technique being combined with each other again is compared, preparation method simple process provided herein, easy to accomplish, and thus reduces life Produce the process costs of the composite earthwork cloth.
It specifically, can be by obtaining geotextiles web using the method for spinning machine spinneret on lace curtaining.For simplification Equipment can use same spinning machine to form different geotextiles webs.
When executing step S100 using spinning machine, specifically includes the following steps:
In step s 110, the extruder for feeding material into spinning machine melted to raw material using extruder Body;
In the step s 120, it will be delivered to the different spinning manifolds of spinning machine after melt-stoichiometry, have with spinning different thin The fiber filament of degree;
In step s 130, side-blown cooling is carried out to fiber filament, carries out drawing-off processing, different spinning is controlled by drawing-off The fineness of the fiber spinned in cabinet reaches predetermined fineness;
In step S140, a kind of fiber filament of fineness is arranged on sub-wire pendulum, is then laid on lace curtaining, with Obtain geotextiles web.
In step s 110, raw material can be polypropylene chip and the anti-aging Masterbatch of polypropylene, it is preferable that polyacrylic Melt index is 22-40.Preferably, extruder used in step S110 can be twin (double) screw extruder, and the twin-screw squeezes One area's temperature of press be 200 DEG C to 230 DEG C, two area's temperature be 220 DEG C to 250 DEG C, three area's temperature be 230 DEG C to 250 DEG C, four Area's temperature is 230 DEG C to 250 DEG C, and five area's temperature are 230 DEG C to 250 DEG C.
Preferably, in step S130, cooling temperature is 12 DEG C.
Step S300 may include:
In step s310, the fiber filament being delivered in the different spinning manifolds of spinning machine in step S120 is led Processing is stretched, to obtain the fiber filament of another fineness;
In step s 320, the fiber filament of another fineness is arranged on another sub-wire pendulum, is then sprayed on fiber increasing On strong layer, to obtain geotextiles web.
For example, can use spinning machine forms first fiber with the first fineness, and the first fiber is sprayed on lace curtaining Networking;Then it is laid with the fiber-reinforced layer;The spinning machine is finally recycled to form second fiber with the second fineness, and Second fiber is sprayed on networking on the fiber-reinforced layer.It finally can get the presoma.
The distance between two neighboring sub-wire pendulum can be 4m.One unwinding can be set between two sub-wire pendulums Fiber-reinforced layer is wrapped on unwinding frame by frame, when lace curtaining is moved at unwinding rack position, by unwinding frame for fiber reinforcement Layer is laid on geotextiles fiber web layer.Then lace curtaining is moved to another sub-wire pendulum, is laid on fiber-reinforced layer another Layer geotextiles fiber web layer.
Above the principle of composite earthwork cloth and advantage are described in detail, which is not described herein again.
As mentioned above it is possible, in order to reduce cost, it is preferable that the presoma include two layers geotextiles web and One layer of fiber-reinforced layer.
In the present invention, there is no special requirement to how executing step S400, it is preferable that step S400 may include:
In step S410, agent is lubricated to the presoma and is arranged;
In the step s 420, the presoma after arranging to lubricant carries out pinprick reinforcement;
In step S430, thermal finalization is carried out to the presoma after pinprick reinforcement, to obtain the composite earthwork cloth.
By step S430, each layer in presoma can be made to be securely bonded together, it is not easy to disengage, to increase The bulk strength of the composite earthwork cloth is added.
In step S410, it is whole agent can be lubricated to the presoma by way of sprinkling, dipping or coating Reason.The lubricant used in this step may include antistatic agent, smooth agent etc..
In the present invention, to the concrete technology of pinprick reinforcement in step S420 also without special demand, as the geotechnique Layer of cloth includes polypropylene filament geotextiles, and when fiber-reinforced layer includes glass fiber reticular cloth, needling density can be 100/cm2Extremely 260/cm2Between a.Preferably, step S420 may include that pre-needling and main needle pierce two steps.
In the present invention, there is no special requirement to the technological temperature of step S430, it can be according to geotextiles fiber web layer Specific material select technological temperature.For example, in preferred embodiment provided by the present invention, the geotextile layer includes Polypropylene filament geotextiles, fiber-reinforced layer include glass fiber reticular cloth, and therefore, in step S430, the technological temperature of thermal finalization is 100 DEG C to 140 DEG C.In general, can use framing shaping machine or hot-rolling mill execution step S430.
As the third aspect of the invention, a kind of manufacturing equipment of composite earthwork cloth is provided, wherein as shown in figure 3, institute Stating manufacturing equipment includes spinning machine 100, spreading machine 200 and shaping equipment 300.
Spinning machine 100 forms multilayer geotechnique measuring fiber net for spinning geotechnological measuring fiber, and using the geotechnological measuring fiber, The effective aperture of at least two layers geotextiles web is different.
Spreading machine 200 is used to fiber-reinforced layer be mated formation at least one layer of geotextiles web, and the spinning At least one layer of geotextiles web can also be laid on the fiber-reinforced layer by machine, to obtain presoma.
Shaping equipment 300 is for carrying out shaping the presoma, to obtain the composite earthwork cloth.
Manufacturing equipment provided by the present invention is described multiple to prepare for executing above-mentioned preparation method provided by the present invention Close geotextiles.
It is easily understood that spinning machine 100 is for executing step S100 and step S300, spreading machine 200 is for executing step Rapid S200, shaping equipment 300 is for executing step S400.
Preferably, as shown in figure 3, spinning machine may include feed bin, extruder 110, fondant filter, multiple metering pumps 120, multiple spinning manifolds 130, cross air blowing device (not shown), drafting system (not shown), multiple sub-wire pendulums 140, lace curtaining The equipment such as 150.
Specifically, extruder 110 is for executing step S110, metering pump 120 and spinning manifold 130 for executing step S120, each spinning manifold 130 are corresponding with a metering pump 120, and each spinning manifold 130 also corresponds to a sub-wire pendulum 140. Cross air blowing device and drafting system are for executing step S130, sub-wire pendulum 140 and lace curtaining for executing step S140.
Preferably, spreading machine 200 may include the unwinding frame being arranged between two sub-wire pendulums 140.Fiber-reinforced layer It is wrapped on the unwinding frame.
In specific embodiment shown in fig. 3, shaping equipment 300 includes finishing agent system 310, pinprick reinforcement module 320 and thermal finalization module 330.
Finishing agent system 310 is located at the downstream of spinning machine 100, for executing step S410, i.e., for the presoma Lubricant is provided.
Pinprick reinforcement module 320 is located at the downstream of finishing agent system 310, for executing step S420, i.e., for lubrication Agent treated presoma carries out pinprick reinforcement.
Thermal finalization module 330 is located at the downstream of pinprick reinforcement module 320, for executing step S430, i.e., for piercing to needle Presoma after reinforcing carries out heat-shaping, to obtain the composite earthwork cloth.
For the ease of the storage and transport of the composite earthwork cloth, it is preferable that as shown in figure 3, the manufacturing equipment is also wrapped Include cloth storage device 410 and up- coiler 420.Cloth storage device 410 is located at 300 downstream of shaping equipment, for obtaining shaping equipment 300 The composite earthwork cloth carry out trimming, up- coiler 420 is located at 410 downstream of cloth storage device, for the composite earthwork after trimming Cloth is wound in rolls.
Cloth storage device 410, which refers to geotextiles trimming, cuts the flash of composite earthwork cloth, so that composite earthwork cloth Size more standard.Storage can be put in storage after composite earthwork cloth is wound into a roll.
Embodiment
Embodiment 1
In step s 110, the polypropylene chip that melt index is 28 is launched into feed bin and is delivered to twin-screw extruder Machine, twin (double) screw extruder carry out heating melting to raw material, are allowed to become melt;
In the step s 120, melt is delivered to first by melt conveying pipeline after fondant filter filters respectively Metering pump and the second metering pump, the first spinning manifold is delivered to after melt-stoichiometry and the second spinning manifold carries out spinning;
In step s 130, the fiber filament side first spinning manifold and second spinning manifold spinned respectively Quenching carries out drawing-off processing, and controlling the spun fibre fineness of the first spinning manifold by drawing-off is 3D, the second spinning manifold Spun fibre fineness is 15D;
In step S140, fibre fineness is that the fiber filament of 3D is transported on the first sub-wire pendulum, and fibre fineness is The fiber filament of 15D is transported on the second sub-wire pendulum, and the fiber filament on the first sub-wire pendulum is uniformly spread at lace curtaining On, also, the revolving speed for the metering pump being connected by control with the first spinning manifold, to control the geotextiles web on lace curtaining Grammes per square metre is 100g/m2
It in step s 200, is 180g/m by grammes per square metre2Glass fiber reticular cloth by unwinding frame unwinding be laid on fibre fineness On the geotextiles web formed for the fiber filament of 3D;
In step S300, the fiber filament on the second sub-wire pendulum is uniformly spread to glass fiber reticular cloth, to form soil Work measuring fiber net, and finally obtain presoma, wherein the revolving speed by controlling the metering pump being connected with the second spinning manifold controls The grammes per square metre for the geotextiles web that the fiber filament that fibre fineness is 15D is formed is 150g/m2
In step S410, the presoma is delivered to finishing agent system using lace curtaining and is lubricated agent arrangement, is arranged Mode includes sprinkling, dipping or coating;
In the step s 420, pre-needling reinforcing, main pinprick reinforcement, total needle are carried out to the presoma after lubricant arranges Thorn density is 120/cm2
In step S430, thermal finalization processing is carried out to the presoma after pinprick reinforcement using framing shaping machine, is answered Geotextiles are closed, the temperature of thermal finalization processing is 110 DEG C;
In step S500, composite earthwork cloth is sent into cloth storage device and up- coiler is wrapped after cutting flash, winding It is packed into library.
It is required according to GB/T17639-2008 " geosynthetics filament spunbond needling non-woven geotextiles " to this implementation Example product carries out wide item and stretches and effective aperture test, tensile strength 25KN/m, effective aperture (O90) it is 0.04mm.
Embodiment 2
In step s 110, the polypropylene chip that melt index is 28 is launched into feed bin and is delivered to twin-screw extruder Machine, twin (double) screw extruder carry out heating melting to raw material, are allowed to become melt;
In the step s 120, melt is delivered to the first meter by melt conveying pipeline after fondant filter filters respectively Amount pumps and the second metering pump, after melt-stoichiometry, is delivered to the first spinning manifold respectively and the second spinning manifold carries out spinning;
In step s 130, the side-blown air cooling of fiber filament the first spinning manifold and the second spinning manifold spinned respectively Afterwards, drawing-off processing is carried out, controlling the spun fibre fineness of the first spinning manifold by drawing-off is 5D, and the second spinning manifold is spun Fibre fineness is 12D;
In step S140, fibre fineness is that the fiber filament of 5D is transported on the first sub-wire pendulum, and fibre fineness is The fiber filament of 12D is transported on the second sub-wire pendulum, and the fiber filament on the first sub-wire pendulum is uniformly spread at lace curtaining On, also, the revolving speed for the metering pump being connected by control with the first spinning manifold, to control the geotextiles web on lace curtaining Grammes per square metre is 150g/m2
It in step s 200, is 240g/m by grammes per square metre2Glass fiber reticular cloth be layered on fibre fineness by unwinding frame unwinding and be On the geotextiles web that the fiber filament of 5D is formed;
In step S300, the fiber filament on the second sub-wire pendulum is uniformly spread to glass fiber reticular cloth, to form soil Work measuring fiber net, and finally obtain presoma, wherein the revolving speed by controlling the metering pump being connected with the second spinning manifold controls The grammes per square metre for the geotextiles web that the fiber filament that fibre fineness is 12D is formed is 220g/m2
In step S410, the presoma is delivered to finishing agent system using lace curtaining and is lubricated agent arrangement, is arranged Mode includes sprinkling, dipping or coating;
In the step s 420, pre-needling reinforcing, main pinprick reinforcement, total needle are carried out to the presoma after lubricant arranges Thorn density is 160/cm2
In step S430, thermal finalization processing is carried out to the presoma after pinprick reinforcement using framing shaping machine, is answered Geotextiles are closed, the temperature of thermal finalization processing is 130 DEG C
In step S500, composite earthwork cloth is sent into cloth storage device and up- coiler is wrapped after cutting flash, winding It is packed into library.
It is required according to GB/T17639-2008 " geosynthetics filament spunbond needling non-woven geotextiles " to this implementation Example product carries out wide item and stretches and effective aperture test, tensile strength 36KN/m, effective aperture (O90) it is 0.06mm.
Embodiment 3
In step s 110, the polypropylene chip that melt index is 28 is launched into feed bin and is delivered to twin-screw extruder Machine, twin (double) screw extruder carry out heating melting to raw material, are allowed to become melt;
In the step s 120, melt is delivered to first by melt conveying pipeline after fondant filter filters respectively Metering pump and the second metering pump, the first spinning manifold is delivered to after melt-stoichiometry and the second spinning manifold carries out spinning;
In step s 130, the fiber filament side first spinning manifold and second spinning manifold spinned respectively Quenching carries out drawing-off processing, and controlling the spun fibre fineness of the first spinning manifold by drawing-off is 3D, the second spinning manifold Spun fibre fineness is 11D;
In step S140, fibre fineness is that the fiber filament of 3D is transported on the first sub-wire pendulum, and fibre fineness is The fiber filament of 11D is transported on the second sub-wire pendulum, and the fiber filament on the first sub-wire pendulum is uniformly spread at lace curtaining On, also, the revolving speed for the metering pump being connected by control with the first spinning manifold, to control the geotextiles web on lace curtaining Grammes per square metre is 200g/m2
It in step s 200, is 240g/m by grammes per square metre2Glass fiber reticular cloth by unwinding frame unwinding be laid on fibre fineness On the geotextiles web formed for the fiber filament of 3D;
In step S300, the fiber filament on the second sub-wire pendulum is uniformly spread to glass fiber reticular cloth, to form soil Work measuring fiber net, and finally obtain presoma, wherein the revolving speed by controlling the metering pump being connected with the second spinning manifold controls The grammes per square metre for the geotextiles web that the fiber filament that fibre fineness is 15D is formed is 200g/m2
In step S410, the presoma is delivered to finishing agent system using lace curtaining and is lubricated agent arrangement, is arranged Mode includes sprinkling, dipping or coating;
In the step s 420, pre-needling reinforcing, main pinprick reinforcement, total needle are carried out to the presoma after lubricant arranges Thorn density is 240/cm2
In step S430, thermal finalization processing is carried out to the presoma after pinprick reinforcement using framing shaping machine, is answered Geotextiles are closed, the temperature of thermal finalization processing is 140 DEG C;
In step S500, composite earthwork cloth is sent into cloth storage device and up- coiler is wrapped after cutting flash, winding It is packed into library.
It is required according to GB/T17639-2008 " geosynthetics filament spunbond needling non-woven geotextiles " to this implementation Example product carries out wide item and stretches and effective aperture test, tensile strength 36KN/m, effective aperture (O90)≤0.02mm。
It is understood that the principle that embodiment of above is intended to be merely illustrative of the present and the exemplary implementation that uses Mode, however the present invention is not limited thereto.For those skilled in the art, essence of the invention is not being departed from In the case where mind and essence, various changes and modifications can be made therein, these variations and modifications are also considered as protection scope of the present invention.

Claims (13)

1. a kind of manufacturing equipment of composite earthwork cloth, which is characterized in that the manufacturing equipment includes:
Spinning machine, the spinning machine form multilayer geotechnique measuring fiber for spinning geotechnological measuring fiber, and using the geotechnological measuring fiber The effective aperture of net, at least two layers geotextiles web is different,
The spinning machine includes lace curtaining and multiple spinning manifolds, multiple sub-wire pendulums, and each spinning manifold is one corresponding The sub-wire pendulum;
Spreading machine, the spreading machine are used to mat formation fiber-reinforced layer at least one layer of geotextiles web, and described At least one layer of geotextiles web can also be laid on the fiber-reinforced layer by spinning machine, to obtain presoma,
The spreading machine includes the unwinding frame being arranged between two sub-wire pendulums, for making fiber-reinforced layer be wrapped in described move back On frame;
Shaping equipment, the shaping equipment is for carrying out shaping the presoma, to obtain the composite earthwork cloth;Wherein,
The shaping equipment includes finishing agent system, pinprick reinforcement module and thermal finalization module,
The finishing agent system is located at the downstream of the spinning machine, for providing lubricant to the presoma;
The pinprick reinforcement module is located at the downstream of the finishing agent system, for carrying out needle to lubricant treated presoma Thorn is reinforced;
The thermal finalization module is located at the downstream of the pinprick reinforcement module, for heating to the presoma after pinprick reinforcement Sizing, to obtain the composite earthwork cloth.
2. manufacturing equipment according to claim 1, which is characterized in that the manufacturing equipment further includes cloth storage device and winding Machine, the cloth storage device are located at the shaping equipment downstream, the composite earthwork cloth for obtaining the shaping equipment into Row trimming, the up- coiler is located at the cloth storage device downstream, for being wound in rolls to the composite earthwork cloth after trimming.
3. a kind of preparation method of composite earthwork cloth, which is characterized in that the preparation method of the composite earthwork cloth is wanted by right The manufacturing equipment of composite earthwork cloth described in asking 1 or 2 realizes that the preparation method includes:
Form at least one layer of geotextiles web;
Fiber-reinforced layer is laid at least one layer of geotextile layer;
It is laid at least one layer of geotextiles web, on the fiber-reinforced layer to obtain presoma, multilayer geotechnique's measuring fiber net In at least one layer of multilayer include polypropylene filament geotextiles web;
The presoma is carried out shaping, to obtain composite earthwork cloth, the composite earthwork cloth includes the geotextiles as described in multilayer The effective aperture of the multilayer geotextile layer that web is formed, at least two layers geotextile layer is different, wherein
The presoma carries out shaping, to obtain the composite earthwork cloth the step of include:
Agent is lubricated to the presoma to arrange;
Presoma after arranging to lubricant carries out pinprick reinforcement;
Thermal finalization is carried out to the presoma after pinprick reinforcement, to obtain the composite earthwork cloth.
4. preparation method according to claim 3, which is characterized in that the presoma includes two layers of geotechnological measuring fiber Net and one layer of fiber-reinforced layer.
5. preparation method according to claim 3 or 4, which is characterized in that the presoma after arranging to lubricant carries out In the step of pinprick reinforcement, needling density is in 100/cm2To 260/cm2Between a.
6. preparation method according to claim 3 or 4, which is characterized in that carrying out heat to the presoma after pinprick reinforcement In the step of sizing, heat setting temperature is between 100 DEG C to 140 DEG C.
7. a kind of composite earthwork cloth, which is characterized in that the composite earthwork cloth is as described in any one of claim 3 to 6 The preparation method of composite earthwork cloth is prepared, and the composite earthwork cloth includes the multilayer geotextile layer and at least one layer fibre of stacking Enhancement layer is tieed up, the fiber-reinforced layer is arranged between two layers of geotextile layer, in geotextile layer described in multilayer, at least two layers The effective aperture of the geotextile layer is different, and at least one layer in geotextile layer described in multilayer includes polypropylene filament geotextiles, Also, the composite earthwork layer of cloth is whole by lubricant by the presoma including multilayer geotechnique measuring fiber net and fiber-reinforced layer Reason, pinprick reinforcement and thermal finalization obtain.
8. composite earthwork cloth according to claim 7, which is characterized in that between geotextile layer described in two layers of arbitrary neighborhood It is provided with one layer of fiber-reinforced layer, and the effective aperture of the geotextile layer of the fiber-reinforced layer two sides is different.
9. composite earthwork cloth according to claim 8, which is characterized in that the composite earthwork cloth includes two layers of geotechnique Layer of cloth.
10. composite earthwork cloth according to claim 9, which is characterized in that be made one layer in two layers of geotextile layer Fiber fibre fineness be 3D-6D, be made another layer in two layers of geotextile layer of fiber fibre fineness be 11D- 15D。
11. composite earthwork cloth according to claim 10, which is characterized in that fibre fineness is the geotextile layer of 3D-6D Grammes per square metre is in 50g/m2To 110g/m2Between, fibre fineness is the grammes per square metre of the geotextile layer of 11D-15D in 50g/m2To 220g/m2It Between.
12. the composite earthwork cloth according to any one of claim 7 to 11, which is characterized in that the fiber-reinforced layer Including grid cloth.
13. composite earthwork cloth according to claim 12, which is characterized in that the fiber-reinforced layer includes glass fiber reticular cloth And/or polyethylene grid cloth, the grammes per square metre of the fiber-reinforced layer are 110g/m2To 190g/m2
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CN111020875A (en) * 2019-12-26 2020-04-17 肥城联谊工程塑料有限公司 Production process of fiber fabric reinforced geotextile
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