CN101648415A - Extruding and pelleting equipment of 35KV-110KV grade XLPE cross-linking insulated cable material - Google Patents
Extruding and pelleting equipment of 35KV-110KV grade XLPE cross-linking insulated cable material Download PDFInfo
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- CN101648415A CN101648415A CN200910184538A CN200910184538A CN101648415A CN 101648415 A CN101648415 A CN 101648415A CN 200910184538 A CN200910184538 A CN 200910184538A CN 200910184538 A CN200910184538 A CN 200910184538A CN 101648415 A CN101648415 A CN 101648415A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/397—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using a single screw
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Abstract
The invention discloses extruding and pelleting equipment of a 35KV-110KV grade XLPE cross-linking insulated cable material, which is characterized by comprising the following successively connected devices: a PE raw material feeding device, a PE granules supplementing device, a PE granules metering and feeding device, a compounding extruding machine set, a high-pressure fused mass extruding system, a fused mass filtering device, a water pelletizing device, a dehydrating device, a transitive material bin, a quantitative weighing device, a vacuum drier, a finished product bin, a metal filter and an automatic weighing and packaging system, wherein an antioxidant metering and feeding device and a modified master batch metering and feeding device are connected with the compounding extruding machine set at the same time, and meanwhile, a DCP liquid metering and feeding device is connected with the vacuum drier. The 35KV-110KV grade extra-high voltage cable XLPE insulated material produced by the production line of the invention fundamentally perfects the degree of purification of base stock and the impurity content of the cable material, and the water content of the cable material; andthe product quality is stable.
Description
Technical field
The present invention relates to a kind of 35KV～110KV level XLPE crosslinking insulated cable material extruding and granulating equipment, belong to the chemical machinery technical field.
Background technology
Along with developing rapidly of China's power industry, market is increasing to the demand of high pressure, ultrahigh voltage power cable.China's high pressure, extra-high-tension cable are trans-corporations such as U.S.'s connection charcoal, Borealis with the basic dependence on import of crosslinkable Insulation Material, main channel at present.Current China has formed internationalization at the following midium voltage cable material of 35KV level, but does not also have a family to possess the manufacturer of the above cable insulating material production capacity of 110KV level so far.In view of 110KV level extra-high-tension cable Insulation Material is compared with the following mesolow cable insulating material of 35KV level, the purification of purity, equipment and the raw material of material all there is very high requirement.Current, the particular problem that is faced in the production of 110KV level extra-high-tension cable insulating materials shows as: the clean purity of polyethylene raw material is not enough; The material of production process mixing, extrude, carry, can be polluted in the cooling, dry run; Existing production technology can not satisfy free of contamination demand;
So it is necessary proposing a kind of feasible 35KV～110KV level XLPE crosslinking insulated cable material extruding and granulating equipment.
Summary of the invention
Technical problem to be solved by this invention provides a kind of degree of purification and the impurity content of insulated cable material and 35KV～110KV level XLPE crosslinking insulated cable material extruding and granulating equipment of water content that fundamentally improves base-material.
For solving the problems of the technologies described above, the invention provides a kind of 35KV～110KV level XLPE crosslinking insulated cable material extruding and granulating equipment, it is characterized in that: comprise with lower device and continuous successively, PE raw material feeding device → PE pellet feed supplement device → PE pellet metering feed device → mixing extruder group → pressurized melt extrusion system → melt filtration device → water pellet device → dewater unit → transition feed bin → quantitative Weighing apparatus → vacuum drier → finished product bin → metallic filter → automatic weighing packaging system, antioxidant metering feed device and modified master batch metering feed device while and mixing extruder group, DCP liquid meter drawing-in device links to each other with vacuum drier simultaneously.
Aforesaid 35KV～110KV level XLPE crosslinking insulated cable material extruding and granulating equipment, it is characterized in that: described mixing extruder is reciprocating type single screw extrusion machine, cocurrent and parallel double screw extruder, anisotropic parallel twin-screw extruding machine or single screw extrusion machine.
Aforesaid 35KV～110KV level XLPE crosslinking insulated cable material extruding and granulating equipment, it is characterized in that: described pressurized melt extrusion system is Melt Pump, gear pump or single screw extrusion machine.
Aforesaid 35KV～110KV level XLPE crosslinking insulated cable material extruding and granulating equipment; it is characterized in that: described melt filtration device comprises fondant filter and filters net exchanging device, and described filtration net exchanging device is that board-like double automatic fitration net exchanging device, the board-like automatic net exchanging device, plunger double automatic fitration net exchanging device, disk of not shutting down or not and filtered a kind of in the net exchanging device.
Aforesaid 35KV～110KV level XLPE crosslinking insulated cable material extruding and granulating equipment is characterized in that: described water pellet device is a strand pelletizer in the eccentric pelleter of water smoke, water ring die face cutting machine, underwater pelletizer or the water.
Aforesaid 35KV～110KV level XLPE crosslinking insulated cable material extruding and granulating equipment, it is characterized in that: described DCP liquid meter drawing-in device is liquid weight-loss metering scale, plunger type metering pump or diaphragm plunger formula measuring pump.
Aforesaid 35KV～110KV level XLPE crosslinking insulated cable material extruding and granulating equipment is characterized in that: described dewater unit comprises centrifugal dehydrator and dehydration and vibration sieve.
Aforesaid 35KV～110KV level XLPE crosslinking insulated cable material extruding and granulating equipment, it is characterized in that: described Minton dryer is double conic rotary vacuum dryer, horizontal stirring drier, dry ebullated bed or the dry fluid bed of 1 to 10 of quantity.
Aforesaid 35KV～110KV level XLPE crosslinking insulated cable material extruding and granulating equipment is characterized in that: also comprise the electrical apparatus control system of each power set operation of control, described electrical apparatus control system is PLC or PPC automatic control system and Mechatronic control system.
Aforesaid 35KV～110KV level XLPE crosslinking insulated cable material extruding and granulating equipment is characterized in that: also be included as production line water pellet device the super-purified water of purifying waste water treating apparatus is provided, described super-purified water water resistance 〉=10 megaohms.
In addition, production line reaches 99.999% with nitrogen gas purity; Workshop air ultrapurification device: grade is 1000 grades of-10,000 grades of purifications.
The groundwork principle of 35KV of the present invention～110KV level XLPE crosslinking insulated cable material extruding and granulating equipment is:
With the metering of polyethylene base-material and high-temperature antioxidant automatic weighing, enter extruder and carry out cleaning molten and extrude.Its main purpose is that the impurity in the base-material is further purified, and purifies grade and can reach impurity particle less than 25-70um; The quantitatively middle purpose that adds antioxidant is to prevent polymer oxidation and aging purpose in the polyethylene base-material.
Carry out low-temperature mixed through later polyethylene base-material and the crosslink agent DCP of purified treatment.The DCP peroxide crosslinking is exactly with peroxide generation chemical reaction, forms chemical bond between macromolecular chain, changes the macromolecular structure of original polymer, becomes netted three-dimensional-structure from linear structure, thereby causes the original performance of PE base-material to change significantly.Behind the PE base-material process DCP peroxide crosslinking, its dielectric strength and withstand voltage properties all significantly raise, and its breakdown voltage can be up to 550KV, so can be used for the extra-high-tension cable insulating materials.
What the aqueous medium in the production line in the water pellet device technology adopted is super-purified water, all then conveyings, cooling, drying all adopt special locking device, thoroughly avoid the form of traditional pollution-carrying wind conveying, air cooling and heated-air drying, got rid of pollution sources up hill and dale.If the factory condition does not satisfy direct discharged way, need wind to send, wind regime purifies grade need reach thousand grades～ten thousand grades cleanliness factors.
The beneficial effect that the present invention reached:
35KV of the present invention～110KV level XLPE crosslinking insulated cable material extruding and granulating equipment is extruded directly granulation of back with cleaning molten, adopts the crosslink agent DCP adsorption method again, has thoroughly avoided the pollution problem in the production process.The 35KV that production line of the present invention is produced～110KV level extra-high-tension cable XLPE Insulation Material is fundamentally improved the degree of purification of base-material and the impurity content of CABLE MATERIALS, and the water content of CABLE MATERIALS, constant product quality.
Description of drawings
Fig. 1 is the process chart of 35KV of the present invention～110KV level XLPE crosslinking insulated cable material extruding and granulating equipment.
The specific embodiment
35KV of the present invention～110KV level XLPE crosslinking insulated cable material extruding and granulating equipment, comprise with lower device and continuous successively, PE raw material feeding device → PE pellet feed supplement device → PE pellet metering feed device → mixing extruder group → pressurized melt extrusion system → melt filtration device → water pellet device → dewater unit → transition feed bin → quantitative Weighing apparatus → vacuum drier → finished product bin → metallic filter → automatic weighing packaging system, antioxidant metering feed device and modified master batch metering feed device while and mixing extruder group, DCP liquid meter drawing-in device links to each other with vacuum drier simultaneously.
Described mixing extruder is reciprocating type single screw extrusion machine, cocurrent and parallel double screw extruder, anisotropic parallel twin-screw extruding machine or single screw extrusion machine.
Described pressurized melt extrusion system is Melt Pump, gear pump or single screw extrusion machine.
Described melt filtration device comprises fondant filter and filters net exchanging device, and described filtration net exchanging device is that board-like double automatic fitration net exchanging device, the board-like automatic net exchanging device, plunger double automatic fitration net exchanging device, disk of not shutting down or not and filtered a kind of in the net exchanging device.
Described water pellet device is a strand pelletizer in the eccentric pelleter of water smoke, water ring die face cutting machine, underwater pelletizer or the water.
Described DCP liquid meter drawing-in device is liquid weight-loss metering scale, plunger type metering pump or diaphragm plunger formula measuring pump.
Described dewater unit comprises centrifugal dehydrator and dehydration and vibration sieve.
Described Minton dryer is double conic rotary vacuum dryer, horizontal stirring drier, dry ebullated bed or the dry fluid bed of 1 to 10 of quantity.
Also comprise the electrical apparatus control system of each power set operation of control, described electrical apparatus control system is PLC or PPC automatic control system and Mechatronic control system.
Also be included as production line water pellet device the super-purified water of purifying waste water treating apparatus is provided, described super-purified water water resistance 〉=10 megaohms.
In addition, production line reaches 99.999% with nitrogen gas purity; Workshop air ultrapurification device: grade is 1000 grades of-10,000 grades of purifications.
The present invention adopts mixing extruder to carry out the melt high-temperature mixing, extrudes and purifies directly granulation of back carrying out high pressure.Shaped granule is quantitatively sent into many Minton dryers, and then crosslink agent DCP is sprayed onto the method for adsorbing in the special Minton dryer.
It is mixing at first the special-purpose base-material of PE to be added that antioxidant is finished high-temperature fusant in the mixing extruder group, carry out filtration, purification by the pressurized melt extrusion system again, water pellet device (aqueous medium requires ultrapurification to handle) is adopted in the direct granulation of purification melt after the filtration, granulation mode.Shaped granule directly falls into the transition feed bin after dewatering through dewater unit, carries out quantitative weighing by the automatic ration Weighing apparatus, and weighing scalar quantity particulate material is directly put into Minton dryer; The crosslink agent DCP liquid meter is sprayed on the pellet in the Minton dryer tank body simultaneously, carry out vacuum drying and hybrid reaction then by DCP liquid meter drawing-in device.In this process, the material in the tank body is constantly stirred up and down, makes material constantly upgrade contact surface with inner tank wall, thereby makes full use of the heat that inwall conducts.In this process, the PE particulate material can evenly be adsorbed crosslink agent DCP liquid.The vacuum of Minton dryer can reach-0.03～0.09Mpa, and the moisture content in the material can vaporization rapidly under vacuum condition.After the particulate material drying of association reaction, directly fall into finished product bin, the packing of after metallic filter filters, weighing automatically.In production procedure, all adopt and send to direct discharged way of opening or ultra-clean wind transmission soon, all purify under the condition up to standard and carry out at the production line workplace air.
Most important character of the present invention is that cleaning molten is extruded directly granulation of back, adopts special crosslink agent DCP adsorption method again, has thoroughly avoided the pollution problem in the production process.
(1) mainly be that the special-purpose base-material of PE is added that antioxidant finishes cleaning molten and extrude and filter in mixing extruder, the direct granulation of purification melt after the filtration, pelletized form adopts the water pellet device.In granulation process, the material impurity content that cleaning molten is filtered reaches 70-100 μ m time≤10/kg; During＞100um 0/kg.
(2) shaped granule directly falls into the transition feed bin after dewatering through dewater unit, carries out quantitative weighing by the automatic ration Weighing apparatus, and weighing scalar quantity particulate material is directly put into many Minton dryers; The crosslink agent DCP liquid meter is sprayed on the pellet in the Minton dryer tank body simultaneously, carry out vacuum drying and hybrid reaction then by the weightless scale of liquid.Shaped granule is with the DCP liquid adsorption in this process.Directly fall into finished product bin then, carry out the weighing packing at last.In this process, what all adopt is to send to direct discharged way of opening or ultra-clean wind transmission soon, thoroughly avoids the form of traditional pollution-carrying wind conveying, air cooling and heated-air drying.
In addition, the production line auxiliary facility comprises:
(1) workshop needs the ultrapurification device: grade is 1000 grades of-10,000 grades of purifications.
(2) the production line water is with the super-purified water treating apparatus: water resistance 〉=10 megaohms.
(3) production line nitrogen: gas consumption 20-30m
3/ n, nitrogen gas purity 99.999%.
(4) the main checkout equipment of On-line Product: impurity detector, rheology detector, water tester etc.
Specific embodiment of the present invention has been done detailed explanation to content of the present invention.For one of ordinary skill in the art, without departing from the premise in the spirit of the present invention, any conspicuous change to it is done all constitutes to infringement of patent right of the present invention, with corresponding legal responsibilities.
Claims (10)
1. 35KV～110KV level XLPE crosslinking insulated cable material extruding and granulating equipment, it is characterized in that: comprise with lower device and continuous successively, PE raw material feeding device → PE pellet feed supplement device → PE pellet metering feed device → mixing extruder group → pressurized melt extrusion system → melt filtration device → water pellet device → dewater unit → transition feed bin → quantitative Weighing apparatus → vacuum drier → finished product bin → metallic filter → automatic weighing packaging system, antioxidant metering feed device and modified master batch metering feed device while and mixing extruder group, DCP liquid meter drawing-in device links to each other with vacuum drier simultaneously.
2. 35KV according to claim 1～110KV level XLPE crosslinking insulated cable material extruding and granulating equipment, it is characterized in that: described mixing extruder is reciprocating type single screw extrusion machine, cocurrent and parallel double screw extruder, anisotropic parallel twin-screw extruding machine or single screw extrusion machine.
3. 35KV according to claim 1 and 2～110KV level XLPE crosslinking insulated cable material extruding and granulating equipment, it is characterized in that: described pressurized melt extrusion system is Melt Pump, gear pump or single screw extrusion machine.
4. 35KV according to claim 1 and 2～110KV level XLPE crosslinking insulated cable material extruding and granulating equipment; it is characterized in that: described melt filtration device comprises fondant filter and filters net exchanging device, and described filtration net exchanging device is that board-like double automatic fitration net exchanging device, the board-like automatic net exchanging device, plunger double automatic fitration net exchanging device, disk of not shutting down or not and filtered a kind of in the net exchanging device.
5. 35KV according to claim 1 and 2～110KV level XLPE crosslinking insulated cable material extruding and granulating equipment is characterized in that: described water pellet device is a strand pelletizer in the eccentric pelleter of water smoke, water ring die face cutting machine, underwater pelletizer or the water.
6. 35KV according to claim 1 and 2～110KV level XLPE crosslinking insulated cable material extruding and granulating equipment, it is characterized in that: described DCP liquid meter drawing-in device is liquid weight-loss metering scale, plunger type metering pump or diaphragm plunger formula measuring pump.
7. 35KV according to claim 1 and 2～110KV level XLPE crosslinking insulated cable material extruding and granulating equipment is characterized in that: described dewater unit comprises centrifugal dehydrator and dehydration and vibration sieve.
8. 35KV according to claim 1 and 2～110KV level XLPE crosslinking insulated cable material extruding and granulating equipment, it is characterized in that: described Minton dryer is double conic rotary vacuum dryer, horizontal stirring drier, dry ebullated bed or the dry fluid bed of 1 to 10 of quantity.
9. 35KV according to claim 1 and 2～110KV level XLPE crosslinking insulated cable material extruding and granulating equipment, it is characterized in that: also comprise the electrical apparatus control system of each power set operation of control, described electrical apparatus control system is PLC or PPC automatic control system and Mechatronic control system.
10. 35KV according to claim 1 and 2～110KV level XLPE crosslinking insulated cable material extruding and granulating equipment, it is characterized in that: also be included as production line water pellet device the super-purified water of purifying waste water treating apparatus is provided, described super-purified water water resistance 〉=10 megaohms.
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| CN2009101845381A CN101648415B (en) | 2009-08-28 | 2009-08-28 | Extruding and pelleting equipment of 35KV-110KV grade XLPE cross-linking insulated cable material |
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| CN2009101845381A CN101648415B (en) | 2009-08-28 | 2009-08-28 | Extruding and pelleting equipment of 35KV-110KV grade XLPE cross-linking insulated cable material |
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| CN103072214A (en) * | 2013-01-08 | 2013-05-01 | 江苏德威新材料股份有限公司 | Preparation method and device for 110kV-and-above insulating material capable of chemically crosslinking |
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| CN102173003A (en) * | 2010-12-24 | 2011-09-07 | 张启发 | Automatic production line for thermal vulcanized silicon rubber |
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| CN103072214A (en) * | 2013-01-08 | 2013-05-01 | 江苏德威新材料股份有限公司 | Preparation method and device for 110kV-and-above insulating material capable of chemically crosslinking |
| CN103042622B (en) * | 2013-01-08 | 2015-02-04 | 江苏德威新材料股份有限公司 | Preparation method for 110Kv and above semiconductive chemical crosslinking shielding material and equipment |
| CN103042622A (en) * | 2013-01-08 | 2013-04-17 | 江苏德威新材料股份有限公司 | Preparation method for 110Kv and above semiconductive chemical crosslinking shielding material and equipment |
| CN103072214B (en) * | 2013-01-08 | 2015-06-10 | 江苏德威新材料股份有限公司 | Preparation method and device for 110kV-and-above insulating material capable of chemically crosslinking |
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| CN104200931A (en) * | 2014-08-29 | 2014-12-10 | 江苏诚盟装备股份有限公司 | 10 to 35 kV crosslinking insulation cable material dynamic adsorption production device |
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Address after: 210031, No. 22 Liuzhou North Road, Xiao Liu Industrial Zone, Nanjing hi tech Zone, Jiangsu Patentee after: JIANGSU CENMEN EQUIPMENT CORP., LTD. Address before: 210031, No. 22 Liuzhou North Road, Xiao Liu Industrial Zone, Nanjing hi tech Zone, Jiangsu Patentee before: Nanjing Cenmen Machinery Co., Ltd. |