CN102280179A - Flame-retardant cabtyre cable for mobile device in coal mine and preparation method thereof - Google Patents
Flame-retardant cabtyre cable for mobile device in coal mine and preparation method thereof Download PDFInfo
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- CN102280179A CN102280179A CN 201110137811 CN201110137811A CN102280179A CN 102280179 A CN102280179 A CN 102280179A CN 201110137811 CN201110137811 CN 201110137811 CN 201110137811 A CN201110137811 A CN 201110137811A CN 102280179 A CN102280179 A CN 102280179A
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Abstract
The invention discloses a flame-retardant cabtyre cable for a mobile device in a coal mine and a preparation method thereof. The cable comprises a cable core formed by stranding a plurality of wire cores, wherein each wire core comprises a conductor and a flame-retardant rubber insulation layer extruded outside the conductor; the cable core is covered by a highly flame-retardant inner rubber sheath and a highly flame-retardant outer rubber sheath in sequence; and the flame-retardant rubber insulation layer, the inner sheath and the outer sheath are made of rubbers with an ethylene-propylene-diene monomer as the base material or rubbers with ethylene-vinyl acetate as the base material. The preparation method of the cable is characterized by firstly manufacturing the wire cores, then stranding the wire cores to form the cable core and then extruding the inner sheath and the outer sheath outside the cable core in sequence by three different methods. The cable has the following advantages: the cable not only can substantially alleviate irritation of smoke to the respiratory systems of the personnel in the mine and the harm of smoke to the human bodies, but also is beneficial to rescue work of the rescuers, thus improving the survival possibility of the trapped personnel.
Description
Technical field
The present invention relates to a kind of cable, specifically is the power feeder-rubber sleeve flexible cable of mobile device such as coal mining industries down-hole transportation, and its requirement has the low corrosion of the low cigarette of halogen flame-retarding characteristic.
Background technology
The down-hole coal excavation environmental condition is very abominable, and electric accident or gas explosion meeting cause the generation of malignant fire accident.The person and property safety are subjected to serious threat.Plastic-sheathed Cable is the combustible object with certain fire retardancy, at present, the rubber sleeve flexible cable that uses under the coal mine of GB/T-12972 and MT-818 regulation, in fire incident, can discharge smog and corrosive gas when cable fire, this smog and gas not only can reduce the possibility of surviving of down-hole trapped personnel, and worsen the downhole rescuing environment, simultaneously, also can cause in various degree injury to the rescue personnel.The reason of this class secondary disaster is:
1, the inner sheath and the oversheath rubber constituent of the fire-retardant rubber sleeve flexible cable that uses under the present coal mine are neoprene rubber or analog (haloflex and chlorosulfonated polyethylene are in the majority) and multiple compounding ingredient.Neoprene rubber or analog and some compounding ingredient can discharge when burning has corrosive gas, and it represents composition is chlorine.The chlorinty of neoprene is up to 40%, and the chlorinty of the haloflex that cable industry generally uses also reaches 35%, and chlorine is very heavy, sinks to the bottom of surrounding air, combines the back with water and forms hydrogen chloride (hydrochloric acid).Chlorine is a kind of have corrosivity, excitant, asphyxiating, unpleasant poisonous gas of taste.Respiratory system to the scene of fire personnel has intense stimulus, even can cause injury in various degree;
2, the amount of being fuming of some the raw material component self in insulation, inner sheath and the oversheath rubber of the fire-retardant rubber sleeve flexible cable that uses under the present coal mine is big, do not take the smoke elimination measure in addition, can discharge a large amount of smog during burning, reduce the light transmittance (visibility) of down-hole passage (tunnel), be unfavorable for the escape of down-hole trapped personnel and suing and labouring of rescue personnel.
Summary of the invention
First purpose of the present invention is to provide the fire-retardant rubber sleeve flexible cable of mobile device under the low colliery that corrodes of a kind of low smoke, zero halogen.
Second purpose of the present invention is to provide the preparation method of the fire-retardant rubber sleeve flexible cable of the low corrosion of a kind of above-mentioned low smoke, zero halogen.
In order to solve above-mentioned first purpose, the technical solution used in the present invention is: the fire-retardant rubber sleeve flexible cable of mobile device under a kind of colliery, comprise the cable core that is twisted into by many cores, every core is by conductor and be extruded in the outer fire-retardant rubber insulation layer of conductor and form, be coated with high flame retardant rubber inner sheath and high flame retardant rubber oversheath outside described cable core successively, described fire-retardant rubber insulation layer is the insulation rubber insulating barrier of base-material or the insulation rubber insulating barrier that ethane-acetic acid ethyenyl ester is base-material for Ethylene Propylene Terpolymer.
Described high flame retardant rubber inner sheath is that Ethylene Propylene Terpolymer is that the insulation rubber or the ethane-acetic acid ethyenyl ester of base-material is the insulation rubber of base-material.
Described high flame retardant rubber oversheath is that Ethylene Propylene Terpolymer is the sheath rubber of base-material or the sheath rubber that ethane-acetic acid ethyenyl ester is base-material.
In order to solve above-mentioned second purpose, the technical solution used in the present invention is: mobile device is with the preparation method of fire-retardant rubber sleeve flexible cable under the above-mentioned colliery, and this method comprises the steps:
The first step, extruding on the sulfuration tinuous production, the low corrosion of not halogen-containing low cigarette fire retardant insulating sizing material closely is extruded on the selected soft copper conductor, and in curing tube, vulcanize, according to the saturated-steam temperature in the vulcanization characteristics pipeline of sizing material is 175 ~ 183 ℃, the time of staying is 5 ~ 8 minutes in pipeline, and promptly the outer surface at conductor is coated with insulating barrier formation core;
In second step, on cabler, many cores are twisted together the formation cable core;
In the 3rd step, the outside that the inner sheath sizing material is extruded in cable core forms inner sheath, and the outside that then the oversheath sizing material is extruded in inner sheath forms oversheath; The cable core that will have inner sheath and oversheath vulcanizes in curing tube then, in curing tube, vulcanize, according to the saturated-steam temperature in the rubber vulcanization characteristic pipeline is 183 ~ 194 ℃, and the time of staying is 15 ~ 25 minutes in pipeline, promptly obtains described fire-retardant rubber sleeve flexible cable; It is the rubber size of base-material that wherein said inner sheath sizing material and oversheath sizing material are rubber size or the ethane-acetic acid ethyenyl ester that Ethylene Propylene Terpolymer is a base-material.
Beneficial effect: compared with prior art, cable of the present invention is because to have adopted the Ethylene Propylene Terpolymer of Halogen, low-smoke and low-corrosiveness be that the rubber or the ethane-acetic acid ethyenyl ester of base-material is the rubber of base-material, make cable of the present invention not only mechanical property, electric property and fire resistance meet the requirement of GB/T12972 and MT-818, but also have the Te Tezheng of low-smoke and low-corrosiveness.The concentration that discharges smog during cable fire obviously reduces, thereby can improve the visibility of environment, light transmittance 〉=70%; Discharge during cable fire in the smog corrosive gas obviously reduce pH value 〉=4.3, conductance≤10 μ S.mm
-1Content of halogen (HCL represents with hydrogen chloride)≤0.5%, fluorine cellulose content≤0.1%; Not only can alleviate smog significantly to the stimulation of personnel in the pit's respiratory system and injury, also help suing and labouring of rescue personnel, thereby can increase the possibility that trapped personnel is survived human body.
Description of drawings
Fig. 1 is the structural representation of cable of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with drawings and Examples.
As shown in Figure 1, the fire-retardant rubber sleeve flexible cable of mobile device under a kind of colliery, comprise the cable core that is twisted into by many cores, every core is by conductor 1 and be extruded in conductor 1 outer fire-retardant rubber insulation layer 2 and form, be coated with high flame retardant rubber inner sheath 3 and high flame retardant rubber oversheath 4 outside cable core successively, wherein fire-retardant rubber insulation layer 2, inner sheath 3, oversheath 4 are that the rubber size of base-material or rubber size that ethane-acetic acid ethyenyl ester is base-material are made by Ethylene Propylene Terpolymer.
Be three kinds of preparation methods of this cable below.
Embodiment 1: inner sheath 3 is total to one step of head extrusion molding with oversheath 4 two-shippers:
The first step selects to meet the 5th kind of soft copper conductor that the mark GB/T 3956-1997 of country stipulates
, for example, its nominal area of section is 50mm
2Extruding on the sulfuration tinuous production, insulation thickness according to the MT-818 regulation, the low corrosion of not halogen-containing low cigarette fire retardant insulating sizing material closely is extruded on the selected soft copper conductor, and in curing tube, vulcanize, according to the saturated-steam temperature in the vulcanization characteristics pipeline of sizing material is 175 ~ 183 ℃, the time of staying is 5 ~ 8 minutes in pipeline, form the fire-retardant rubber insulation layer 2 of low smoke, zero halogen low-corrosiveness among Fig. 1, this procedure continuous vulcanization operation that is referred to as to insulate is made three and is thoroughly done away with edge cores and a ground core; Every eradication edge core is identical with the structure of ground core.
Second step, on cabler, stranding lay ratio and stranding direction according to the MT-818 regulation, three thoroughly do away with the edge cores to what the first step was made and join with a ground core and be in the same place, groove between core and the core can be filled the low corrosion of Halogen high flame retardant adhesive tape and be applied the stranding band, form an assembly, be referred to as cable core.
The 3rd step, being total to head at two-shipper extrudes on the sulfuration tinuous production, the low corrosion of not halogen-containing low cigarette high flame retardant inner sheath sizing material is added in inner sheath 3 extruders, the low corrosion of not halogen-containing low cigarette high flame retardant oversheath sizing material is added in oversheath 4 extruders, closely extruding second goes on foot on the one-tenth cable core of making, inner sheath and oversheath thickness sum meet the jacket thickness of MT-818 regulation, and in curing tube, vulcanize, according to the saturated-steam temperature in the rubber vulcanization characteristic pipeline is 183 ~ 194 ℃, and the time of staying is promptly to obtain fire-retardant rubber sleeve flexible cable of the present invention in 15 ~ 25 minutes in pipeline.Will make inner sheath rubber sizing material fill up chase between per two insulated wire cores in the extrusion, inner sheath 3 and oversheath 4 are combined as a whole.
One step of series connection extrusion molding before and after embodiment 2, inner sheath 3 and oversheath 4 two-shippers:
The first step selects to meet the 5th kind of soft copper conductor that the mark GB/T 3956-1997 of country stipulates
, for example, its nominal area of section is 50mm
2Extruding on the sulfuration tinuous production, insulation thickness according to the MT-818 regulation, the low corrosion of not halogen-containing low cigarette fire retardant insulating sizing material closely is extruded on the selected soft copper conductor, and in curing tube, vulcanize, according to the saturated-steam temperature in the rubber vulcanization characteristic pipeline is 175 ~ 183 ℃, the time of staying is 5 ~ 8 minutes in pipeline, form the fire-retardant rubber insulation layer 2 of low smoke, zero halogen low-corrosiveness among Fig. 1, this procedure continuous vulcanization operation that is referred to as to insulate is made three and is thoroughly done away with edge cores and a ground core; Every eradication edge core is identical with the structure of ground core.
Second step, on cabler, stranding lay ratio and stranding direction according to the MT-818 regulation, three thoroughly do away with the edge cores to what the first step was made and join with a ground core and be in the same place, groove between core and the core can be filled the low corrosion of Halogen high flame retardant adhesive tape and be applied the stranding band, form an assembly, be referred to as cable core.
The 3rd step, series connection is extruded on the sulfuration tinuous production before and after two-shipper, the low corrosion of not halogen-containing low cigarette high flame retardant inner sheath sizing material is added in first inner sheath extruder, make the inner sheath sizing material fill up chase between per two insulated wire cores in the extrusion, and profile rounding, its thickness is 2 ~ 3mm, external diameter is even, this root has the one-tenth cable core of inner sheath, enter second oversheath extruder immediately, the low corrosion of not halogen-containing low cigarette high flame retardant oversheath sizing material is applied to the outside of inner sheath, inner sheath and oversheath thickness sum meet the jacket thickness of MT-818 regulation, connect and extrude continuously, and vulcanize in curing tube, saturated-steam temperature in the pipeline is 183 ~ 194 ℃, and the time of staying is promptly to obtain fire-retardant rubber sleeve flexible cable of the present invention in 15 ~ 25 minutes in pipeline.In the extrusion, inner sheath 3 and oversheath 4 will be combined as a whole.
Embodiment 3: inner sheath 3 and oversheath 4 units two steps extrusion molding:
The first step selects to meet the 5th kind of soft copper conductor that the mark GB/T 3956-1997 of country stipulates
, for example, its nominal area of section is 50mm
2Extruding on the sulfuration tinuous production, insulation thickness according to the MT-818 regulation, the low corrosion of not halogen-containing low cigarette fire retardant insulating sizing material closely is extruded on the selected soft copper conductor, and in curing tube, vulcanize, according to the saturated-steam temperature in the rubber vulcanization characteristic pipeline is 175 ~ 183 ℃, the time of staying is 5 ~ 8 minutes in pipeline, form the fire-retardant rubber insulation layer 2 of low smoke, zero halogen low-corrosiveness among Fig. 1, this procedure continuous vulcanization operation that is referred to as to insulate is made three and is thoroughly done away with edge cores and a ground core; Every eradication edge core is identical with the structure of ground core.
Second step, on cabler, stranding lay ratio and stranding direction according to the MT-818 regulation, three thoroughly do away with the edge cores to what the first step was made and join with a ground core and be in the same place, groove between the insulated wire cores can be filled the low corrosion of Halogen high flame retardant adhesive tape and be applied the stranding band, form an assembly, be referred to as cable core.
The 3rd step, extrude on the sulfuration tinuous production at unit, the low corrosion of not halogen-containing low cigarette high flame retardant inner sheath sizing material is closely extruded second to be gone on foot on the one-tenth cable core of making, to make the inner sheath sizing material fill up chase between per two cores in the extrusion, keep the profile rounding, inner sheath thickness is 2 ~ 3mm, external diameter is even, and in curing tube, vulcanize, according to the saturated-steam temperature in the rubber vulcanization characteristic deferent is 175 ~ 183 ℃, the time of staying is 10 ~ 20 minutes in pipeline, makes the one-tenth cable core of band hard rubber inner sheath.
The 4th step, extrude on the sulfuration tinuous production at unit, the low corrosion of not halogen-containing low cigarette high flame retardant oversheath sizing material is closely extruded the outside of the hard rubber inner sheath that the 3rd step made, the summation of inner sheath and oversheath thickness meets the regulation of MT-818, and in curing tube, vulcanize, according to the saturated-steam temperature in the rubber vulcanization characteristic deferent is 183 ~ 194 ℃, and the time of staying is promptly to obtain fire-retardant rubber sleeve flexible cable of the present invention in 14 ~ 23 minutes in pipeline.Inner sheath 3 and oversheath 4 are combined as a whole.
The above only is a preferred implementation of the present invention.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the principle of the invention, can also make some modification and improvement, these also should be considered as belonging to protection scope of the present invention.
Claims (9)
1. the fire-retardant rubber sleeve flexible cable of mobile device under the colliery, it is characterized in that, comprise the cable core that is twisted into by many cores, every core is by conductor (1) and be extruded in the outer fire-retardant rubber insulation layer (2) of conductor (1) and form, be coated with high flame retardant rubber inner sheath (3) and high flame retardant rubber oversheath (4) outside described cable core successively, described fire-retardant rubber insulation layer (2) is the insulation rubber insulating barrier of base-material or the insulation rubber insulating barrier that ethane-acetic acid ethyenyl ester is base-material for Ethylene Propylene Terpolymer.
2. the fire-retardant rubber sleeve flexible cable of mobile device is characterized in that under the colliery according to claim 1, and described high flame retardant rubber inner sheath (3) is that the insulation rubber or the ethane-acetic acid ethyenyl ester of base-material is the insulation rubber of base-material for Ethylene Propylene Terpolymer.
3. the fire-retardant rubber sleeve flexible cable of mobile device is characterized in that under the colliery according to claim 1, and described high flame retardant rubber oversheath (4) is the sheath rubber of base-material or the sheath rubber that ethane-acetic acid ethyenyl ester is base-material for Ethylene Propylene Terpolymer.
4. mobile device is characterized in that with the preparation method of fire-retardant rubber sleeve flexible cable this method comprises the steps: under the described colliery of claim 1
The first step, extruding on the sulfuration tinuous production, the fire retardant insulating sizing material closely is extruded on the selected conductor (1), and in curing tube, vulcanize, according to the saturated-steam temperature in the vulcanization characteristics pipeline of sizing material is 175 ~ 183 ℃, the time of staying is 5 ~ 8 minutes in pipeline, and promptly the outer surface at conductor (1) is coated with insulating barrier (2) formation core;
In second step, on cabler, many cores are twisted together the formation cable core;
In the 3rd step, the outside that the inner sheath sizing material is extruded in cable core forms inner sheath (3), and the outside that then the oversheath sizing material is extruded in inner sheath forms oversheath (4); The cable core that will have inner sheath (3) and oversheath (4) then vulcanizes in curing tube, according to the saturated-steam temperature in the rubber vulcanization characteristic pipeline is 183 ~ 194 ℃, the time of staying is 15 ~ 25 minutes in pipeline, promptly obtains described fire-retardant rubber sleeve flexible cable;
It is the rubber size of base-material that wherein said fire retardant insulating sizing material, inner sheath sizing material and oversheath sizing material are rubber size or the ethane-acetic acid ethyenyl ester that Ethylene Propylene Terpolymer is a base-material.
5. mobile device is characterized in that with the preparation method of fire-retardant rubber sleeve flexible cable under the colliery according to claim 4, and in second step, the groove that forms between core and core is filled the low corrosion of Halogen high flame retardant adhesive tape and applied the stranding band.
6. mobile device is characterized in that with the preparation method of fire-retardant rubber sleeve flexible cable under the colliery according to claim 4, and in the 3rd step, described inner sheath fills up the chase between per two insulated wire cores.
7. mobile device is with the preparation method of fire-retardant rubber sleeve flexible cable under the colliery according to claim 4, it is characterized in that, in the 3rd step, the extrusion method of inner sheath and oversheath is: be total to head at two-shipper and extrude on the sulfuration tinuous production, the inner sheath sizing material is added in the inner sheath extruder, the oversheath sizing material is added in the oversheath extruder, closely extrudes on the cable core.
8. mobile device is with the preparation method of fire-retardant rubber sleeve flexible cable under the colliery according to claim 4, it is characterized in that, in the 3rd step, the extrusion method of inner sheath and oversheath is: series connection is extruded on the sulfuration tinuous production before and after two-shipper, the inner sheath sizing material is added in first inner sheath extruder, make the inner sheath sizing material fill up chase between per two insulated wire cores in the extrusion, the cable core that will have inner sheath enters second oversheath extruder immediately, connects and extrude continuously in the outside that the oversheath sizing material is applied to inner sheath.
9. mobile device is with the preparation method of fire-retardant rubber sleeve flexible cable under the colliery according to claim 4, it is characterized in that, in the 3rd step, the extrusion method of inner sheath and oversheath is: extrude on the sulfuration tinuous production at unit, the inner sheath sizing material is closely extruded second to be gone on foot on the cable core of making, to make the inner sheath sizing material fill up chase between per two insulated wire cores in the extrusion, and in curing tube, vulcanize, according to the saturated-steam temperature in the rubber vulcanization characteristic deferent is 175 ~ 183 ℃, the time of staying is 10 ~ 20 minutes in pipeline, makes the cable core of band hard rubber inner sheath; Extrude on the sulfuration tinuous production at unit, the oversheath sizing material is closely extruded the outside of hard rubber inner sheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110137811 CN102280179A (en) | 2011-05-25 | 2011-05-25 | Flame-retardant cabtyre cable for mobile device in coal mine and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110137811 CN102280179A (en) | 2011-05-25 | 2011-05-25 | Flame-retardant cabtyre cable for mobile device in coal mine and preparation method thereof |
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| CN102280179A true CN102280179A (en) | 2011-12-14 |
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| CN 201110137811 Pending CN102280179A (en) | 2011-05-25 | 2011-05-25 | Flame-retardant cabtyre cable for mobile device in coal mine and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102592728A (en) * | 2012-03-15 | 2012-07-18 | 大同电线电缆科技（吴江）有限公司 | Film-coated metal cable and manufacturing method thereof |
| CN104200882A (en) * | 2014-09-10 | 2014-12-10 | 安徽华能电缆集团有限公司 | Aluminum alloy cored rubber-jacketed flexible cable for top drive drilling equipment |
| CN109448933A (en) * | 2018-11-30 | 2019-03-08 | 宏亮电缆有限公司 | The method that ultraviolet light irradiation cross-linking prepares high voltage cable |
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| CN101486819A (en) * | 2009-03-05 | 2009-07-22 | 黑龙江沃尔德电缆有限公司 | Optical crosslinking halogen-free flame-retardant EPT rubber cable material and preparation thereof |
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| CN101093736A (en) * | 2006-06-21 | 2007-12-26 | 江苏中煤电缆集团有限公司 | Rubber insulation material and insulating sheath material for mine cable |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102592728A (en) * | 2012-03-15 | 2012-07-18 | 大同电线电缆科技（吴江）有限公司 | Film-coated metal cable and manufacturing method thereof |
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| CN104200882A (en) * | 2014-09-10 | 2014-12-10 | 安徽华能电缆集团有限公司 | Aluminum alloy cored rubber-jacketed flexible cable for top drive drilling equipment |
| CN109448933A (en) * | 2018-11-30 | 2019-03-08 | 宏亮电缆有限公司 | The method that ultraviolet light irradiation cross-linking prepares high voltage cable |
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Application publication date: 20111214 |