CN211964539U - Thermoplastic inner shielding material production line for 10kv overhead insulated cable - Google Patents
Thermoplastic inner shielding material production line for 10kv overhead insulated cable Download PDFInfo
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- CN211964539U CN211964539U CN201922262319.2U CN201922262319U CN211964539U CN 211964539 U CN211964539 U CN 211964539U CN 201922262319 U CN201922262319 U CN 201922262319U CN 211964539 U CN211964539 U CN 211964539U
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- 239000000463 material Substances 0.000 title claims abstract description 96
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 29
- 229920001169 thermoplastic Polymers 0.000 title claims abstract description 11
- 239000004416 thermosoftening plastic Substances 0.000 title claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 59
- 238000002156 mixing Methods 0.000 claims abstract description 43
- 238000001816 cooling Methods 0.000 claims abstract description 41
- 230000007246 mechanism Effects 0.000 claims abstract description 36
- 238000007599 discharging Methods 0.000 claims abstract description 21
- 238000005469 granulation Methods 0.000 claims abstract description 19
- 230000003179 granulation Effects 0.000 claims abstract description 19
- 238000012216 screening Methods 0.000 claims abstract description 9
- 238000001125 extrusion Methods 0.000 claims description 22
- 230000000903 blocking effect Effects 0.000 claims description 16
- 239000000843 powder Substances 0.000 claims description 16
- 238000000227 grinding Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 11
- 239000002245 particle Substances 0.000 claims description 9
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- 239000011344 liquid material Substances 0.000 claims description 4
- 238000005086 pumping Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 10
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 9
- 239000005038 ethylene vinyl acetate Substances 0.000 description 9
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 9
- 230000008569 process Effects 0.000 description 9
- 238000005520 cutting process Methods 0.000 description 5
- 239000008187 granular material Substances 0.000 description 5
- 239000002608 ionic liquid Substances 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 239000004094 surface-active agent Substances 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 3
- 239000002270 dispersing agent Substances 0.000 description 3
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- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 3
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 3
- 239000004014 plasticizer Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 241000272165 Charadriidae Species 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000003963 antioxidant agent Substances 0.000 description 2
- 230000003078 antioxidant effect Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
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- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
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- RYYKJJJTJZKILX-UHFFFAOYSA-M sodium octadecanoate Chemical compound [Na+].CCCCCCCCCCCCCCCCCC([O-])=O RYYKJJJTJZKILX-UHFFFAOYSA-M 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- ZQTYRTSKQFQYPQ-UHFFFAOYSA-N trisiloxane Chemical group [SiH3]O[SiH2]O[SiH3] ZQTYRTSKQFQYPQ-UHFFFAOYSA-N 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 1
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Abstract
The utility model relates to a thermoplastic inner shielding material production line for 10kv overhead insulated cables, which comprises an internal mixer (301), a granulation system, a centrifugal dehydrator (701), a high-speed mixer (801), a fluidized bed (901) and a vibrating screen (1001) which are connected in sequence through pipelines; the system also comprises a primary mixing system, wherein the primary mixing system comprises a screening mechanism and a discharging mechanism; the granulation system comprises a granulating mechanism and a water cooling mechanism. The utility model relates to a 10kv is shielding material production line in thermoplasticity for aerial insulated cable, its effectual manufacturing effect that has improved the shielding material product and reduced the energy consumption, has played energy-concerving and environment-protective positive benefit.
Description
Technical Field
The utility model relates to a preparation production line especially relates to a production line of 10kv overhead insulated cable with thermoplasticity internal shield material.
Background
At present, in the preparation process of the conventional shielding material, the feeding mode is as follows: the method comprises the following steps that raw materials are directly fed into a feed inlet of a screw conveyer according to a proportion, then the raw materials are conveyed into an internal mixer through the screw conveyer while being mixed, and the raw materials are directly fed into the internal mixer to be subjected to internal mixing operation with liquid materials directly fed into the internal mixer, and although the whole process is simple to operate, in actual use, the fact that the mixing of all components in the powder is not uniform enough is found, and the subsequent internal mixing effect is influenced; meanwhile, the inlet of the screw conveyor is directly communicated with the stock bin when receiving materials, the stock bin is generally positioned on an upper building frame layer in a workshop, the screw conveyor is positioned on a lower floor and has a height drop of at least five to six meters, so when the powder falls into the feed inlet of the screw conveyor vertically, certain impact force is inevitably generated due to the fact that the powder falls freely in the feeding process, the powder with different densities falls in layers after flying, and the uniformity of the mixed materials is further influenced;
in the conventional shielding material preparation process, a hot cutting mode is adopted in the granulation process, namely after a screw extruder extrudes a material in a molten state, a cutter cuts the material to ensure that the material becomes a small-particle material and then cools the small-particle material after the small-particle material falls off, but because EVA in the shielding material has certain elasticity and viscosity, the EVA has certain viscosity in a hot-melt state and is easy to adhere to the cutter, so that the granulation effect is influenced; meanwhile, the conventional granulation cooling mode is air cooling, and the cooling effect is poor; therefore, enterprises develop a water cooling mode, but the conventional water cooling mode adopts a cooling water showering mode, so that a large amount of water resources are consumed, and the cooling effect is improved compared with air cooling, but the ideal effect cannot be achieved.
In view of the foregoing, there is a need in the shielding industry for a manufacturing system that addresses the foregoing problems.
Disclosure of Invention
An object of the utility model is to overcome above-mentioned not enough, provide a 10kv overhead insulated cable is with thermoplasticity internal shield material production line, its effectual manufacturing effect that has improved the shield material product and has reduced the energy consumption, has played energy-concerving and environment-protective positive benefit.
The purpose of the utility model is realized like this:
a thermoplastic inner shielding material production line for a 10kv overhead insulated cable comprises an internal mixer, a granulation system, a centrifugal dehydrator, a high-speed mixer, a fluidized bed and a vibrating screen which are connected in sequence through pipelines; the system also comprises a primary mixing system, wherein the primary mixing system comprises a screening mechanism and a discharging mechanism; the screening mechanism comprises a mixing box, a grinding machine is erected on the mixing box, a bottom discharge port of the grinding machine is communicated with a top feed port of the mixing box, a screen is horizontally arranged in the mixing box transversely and divides the space in the mixing box into an upper cavity and a lower cavity, a vibrating motor is arranged on the outer wall of the mixing box, a vibrating wheel is sleeved at one end, horizontally penetrating through the box wall of the mixing box, of a drive shaft of the vibrating motor, inserted in the lower cavity, a connecting point of the drive shaft of the vibrating motor and the vibrating wheel deviates from the circle center of the vibrating wheel, a discharge port at the funnel-shaped bottom of the mixing box is connected with a blanking pipe, the distance between the screen and the drive shaft of the vibrating motor is equal to the radius of the vibrating wheel, a material returning hole is formed in the inner wall of the upper cavity and is close to the screen, and a material returning pipe is communicated with the top feed hole of the grinding, a material return fan is connected in series on the material return pipe; so that the powder with insufficient fineness after grinding is pumped back into the grinding machine by the feed back fan to be circularly ground again until the requirement is met;
the blanking mechanism comprises an outer shell, the blanking pipe is communicated with a powder inlet at the top of the outer shell, an EVA (ethylene vinyl acetate) feeding port is arranged at the top of the outer shell, a blanking shaft driven by a motor is vertically arranged in the outer shell, a blanking spiral sheet is arranged on the blanking shaft, the outer diameter of the blanking spiral sheet is consistent with the inner diameter of the outer shell with a cylindrical structure, the left end feeding end of a blanking screw conveyer is inserted into the outer shell, the blanking spiral sheet is positioned above the spiral sheet of the blanking screw conveyer, a liquid material feeding port is arranged on the outer wall of the blanking screw conveyer, which is positioned outside the outer shell, and a right end discharging port of the blanking screw conveyer is communicated to the internal mixer through the blanking pipe;
the granulating system comprises a granulating mechanism and a water cooling mechanism, wherein the granulating mechanism comprises a screw extruder horizontally inserted in a granulating water chamber, a discharge port of an internal mixer is communicated to a feed end of the screw extruder, the top of the granulating water chamber is communicated with the water cooling mechanism through a material pumping pump, the water cooling mechanism is communicated with the bottom of the granulating water chamber after passing through a heat exchanger and a water return pump, and an extrusion die head is arranged at a discharge end of the screw extruder in the granulating water chamber; the screw extruder is characterized in that a plurality of extrusion holes are formed in the extrusion die head, a scraper is sleeved at one end, penetrating through the extrusion die head, of a rotating shaft of the screw extruder, and the cutting edge of the scraper is in sliding fit with the outer side surface of the extrusion die head;
the water-cooling mechanism comprises a water-cooling box body, a baffle is vertically arranged in the water-cooling box body, the baffle separates the inner cavity of the water-cooling box body into a left cavity and a right cavity, a water outlet positioned at the bottom of the water-cooling box body is communicated with the left cavity, a rotating shaft driven by a motor is inserted in the right cavity, a rotary screen is sleeved on the rotating shaft, the outer diameter of the rotary screen is equal to the inner diameter of the water-cooling box body, the rotary screen penetrates through a slit on the baffle, a material blocking screen is fixedly arranged in the left cavity and positioned below the rotary screen, the material blocking screen is attached to the bottom surface of the rotary screen, the mesh aperture of the material blocking screen is smaller than that of the rotary screen, the mesh aperture of the rotary screen is larger than that of material particles, and the mesh aperture of the material blocking screen is smaller than that of the material particles, and a discharging slope is arranged on the periphery of the discharge port at the bottom of the right chamber and is positioned below the rotary screen.
The utility model relates to a 10kv is shielding material production line in aerial insulated cable's thermoplasticity, rotatory screen cloth keep off the ring outward along vertical upwards being provided with all around, and be provided with in the middle of the rotatory screen cloth and supply the rotation axis to insert driven inner skleeve, and evenly be provided with many parting beads between outer fender ring and the inner skleeve.
The utility model relates to a 10kv is shield material production line in aerial insulated cable's thermoplasticity, centrifugal dehydrator's dehydration mouth communicates to the water inlet of heat exchanger via the tee bend.
The utility model relates to a 10kv is shielding material production line in aerial insulated cable's thermoplasticity, screw extruder inserts and is provided with annular thread groove on the outer wall of the one end in cutting the grain water chamber in, be provided with the internal thread on extrusion die's the inner wall, extrusion die's internal thread is arranged in on above-mentioned annular thread groove soon.
The utility model relates to a 10kv is shielding material production line in aerial insulated cable's thermoplasticity, screw extruder's rotation axis passes the one end top spin of scraper and has put adjusting nut.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model grinds a plurality of powder materials through the grinding machine, so that the powder materials are mixed more uniformly in the grinding process, and the powder materials are screened and circularly ground through the screen after being ground, thereby not only ensuring the fineness of the powder materials, but also actually playing the effect of secondary mixing in the screening process of the screen; meanwhile, in the discharging process, the spiral process is slower through the vertically arranged spiral sheet, so that the flying and layering of the powder are avoided, and meanwhile, the feeding end of the discharging screw conveyor at the bottom of the discharging screw conveyor is inserted into the outer shell and then directly fed, so that the powder and the EVA are mixed together and then directly enter the discharging screw conveyor to be conveyed to the internal mixer;
meanwhile, the granulation process is directly carried out in cooling water, so that the cut and blanked granular materials are directly cooled and cannot be adhered to the blades, and the granulation effect is ensured; the cutting and cooling processes are always in water circulation, so that the cooling effect is improved, the consumption of water resources is reduced, cooling water is recycled through the heat exchanger, and the consumption of the water resources is further reduced;
to sum up, this patent makes the manufacturing efficiency of whole shielding material higher and make the energy consumption reduction, very big improvement the market competition of enterprise.
Drawings
Fig. 1 is the utility model discloses a 10kv overhead insulated cable shields material production line in thermoplasticity's structural schematic.
Fig. 2 is the utility model discloses a 10kv is built on stilts shielding material production line's for insulated cable thermoplasticity just thoughtlessly structural schematic of system.
Fig. 3 is the utility model discloses a schematic structure of 10kv is built on stilts insulating cable with granulation system of thermoplasticity internal shield material production line.
Fig. 4 is the structure schematic diagram behind the granulation system of the thermoplastic inner shielding material production line for the 10kv overhead insulated cable.
Fig. 5 is the utility model discloses a local enlarged structure sketch map of scraper department of 10kv overhead insulated cable is with thermoplasticity internal shield material production line.
Fig. 6 is the utility model discloses a structural schematic diagram of the rotatory screen cloth of 10kv overhead insulated cable with thermoplasticity internal shield material production line.
Wherein:
the device comprises a grinder 101, a mixing box 102, a screen 103, a vibration motor 104, a vibration wheel 105, a blanking hopper 106, a material return hole 107, a material return fan 108, a material return pipe 109 and a blanking pipe 110;
the device comprises an outer shell 201, a blanking shaft 202, a blanking spiral sheet 203, a blanking screw conveyor 204 and a blanking pipe 205;
an internal mixer 301;
the device comprises a screw extruder 401, an extrusion die head 402, a scraper 403, an adjusting nut 404 and a granulating water chamber 405;
a heat exchanger 501, a material pumping pump 502 and a water return pump 503;
a water-cooling box body 601, a partition 602, a rotary screen 603, a rotary shaft 604, a material blocking screen 605 and a blanking slope 606;
outer baffle ring 603.1, inner sleeve 603.2, separating strip 603.3;
a centrifugal dehydrator 701;
a high mixing machine 801;
an ebullated bed 901;
the screen 1001 is vibrated.
Detailed Description
Referring to fig. 1-6, the utility model relates to a production line of thermoplastic inner shielding material for 10kv overhead insulated cable, which comprises an internal mixer 301, a granulation system, a centrifugal dehydrator 701, a high-speed mixer 801, a fluidized bed 901 and a vibrating screen 1001 which are connected in sequence through pipelines;
the system also comprises a primary mixing system, wherein the primary mixing system comprises a screening mechanism and a discharging mechanism; the material sieving mechanism comprises a mixing box 102, a grinder 101 is erected on the mixing box 102, a bottom discharge hole of the grinder 101 is communicated with a top feed inlet of the mixing box 102, a screen 103 is horizontally arranged in the mixing box 102, the space in the mixing box 102 is divided into an upper chamber and a lower chamber by the screen 103, a vibration motor 104 is arranged on the outer wall of the mixing box 102, a driving shaft of the vibration motor 104 horizontally penetrates through the box wall of the mixing box 102 to be inserted into one end in the lower chamber to be sleeved with a vibration wheel 105, a connecting point of the driving shaft of the vibration motor 104 and the vibration wheel 105 deviates from the circle center of the vibration wheel 105, a discharge hole at the funnel-shaped bottom of the mixing box 102 is connected with a blanking pipe 110, the distance between the driving shafts of the screen 103 and the vibration motor 104 is equal to the radius of the vibration wheel 105, so that the vibration wheel 105 can periodically beat the screen 103, a material returning hole 107 is formed in the inner wall of the upper chamber, the material returning hole 107 is close to the screen 103, a material returning pipe 109 is communicated between the material returning hole 107 and the top material feeding hole of the grinding machine 101, and a material returning fan 108 is connected to the material returning pipe 109 in series; so that the powder with insufficient fineness after grinding is pumped back into the grinder 101 by the feed back fan 108 to be circularly ground again until the requirement is met;
the blanking mechanism comprises an outer shell 201, the blanking pipe 110 is communicated with a powder inlet at the top of the outer shell 201, an EVA (ethylene vinyl acetate) feeding port is arranged at the top of the outer shell 201, a blanking shaft 202 driven by a motor is vertically arranged in the outer shell 201, a blanking spiral sheet 203 is arranged on the blanking shaft 202, the outer diameter of the blanking spiral sheet 203 is consistent with the inner diameter of the outer shell 201 with a cylindrical structure, the left end feeding end of a blanking screw conveyer 204 is inserted in the outer shell 201, the blanking spiral sheet 203 is positioned above a spiral sheet of the blanking screw conveyer 204, the outer wall of the blanking screw conveyer 204, which is positioned outside the outer shell 201, is provided with a liquid material feeding port, and the right end discharging port of the blanking screw conveyer 204 is communicated to an internal mixer 301 through a blanking pipe 205;
the granulation system comprises a granulation mechanism and a water cooling mechanism, wherein the granulation mechanism comprises a screw extruder 401 horizontally inserted into a granulation water chamber 405, the top of the granulation water chamber 405 is communicated with the water cooling mechanism through a material pumping pump 502, the water cooling mechanism is communicated with the bottom of the granulation water chamber 405 through a heat exchanger 501 and a water return pump 503, an extrusion die head 402 (preferably, an annular thread groove is arranged on the outer wall of one end of the screw extruder 401 inserted into the granulation water chamber 405, an internal thread is arranged on the inner wall of the extrusion die head 402, the internal thread of the extrusion die head 402 is screwed on the annular thread groove, so that the rapid assembly is realized, a plurality of extrusion holes are arranged on the extrusion die head 402, a scraper 403 is sleeved on one end of a rotating shaft of the screw extruder 401, which passes through the extrusion die head 402, the cutting edge of the scraper 403 is in sliding fit with the outer side surface of the extrusion die head 402 (preferably, an adjusting nut 404 is screwed on one end of the rotating shaft of the screw extruder 401, which penetrates through the scraper 403, so that the tightness of the scraper 403 can be conveniently adjusted through the adjusting nut 404);
the water cooling mechanism comprises a water cooling box body 601, a partition 602 is vertically arranged in the water cooling box body 601, the partition 602 divides the inner cavity of the water cooling box body 601 into a left chamber and a right chamber, a feed inlet positioned in the water cooling box body 601 and a water outlet positioned at the bottom of the water cooling box body 601 are both communicated with the left chamber, a rotating shaft 604 driven by a motor is inserted in the right chamber, a rotating screen 603 is sleeved on the rotating shaft 604, the outer diameter of the rotating screen 603 is equal to the inner diameter of the water cooling box body 601, the rotating screen 603 penetrates through a slit on the partition, a material blocking screen 605 is fixedly arranged in the left chamber and positioned below the rotating screen 603, the material blocking screen 605 is attached to the bottom surface of the rotating screen 603, the mesh aperture of the material blocking screen 605 is smaller than that of the rotating screen 603, and the mesh aperture of the rotating screen 603 is larger than the diameter of material particles, the aperture of the mesh of the material blocking screen 605 is smaller than the diameter of material particles, a discharging slope 606 is arranged on the periphery of a discharging port at the bottom of the right chamber, and the discharging slope 606 is positioned below the rotary screen 603; when the material blocking device is used, after granular materials enter the sieve holes of the rotary sieve screen 603 in the left chamber, the granular materials cannot fall due to the existence of the material blocking sieve screen 605, water continuously falls and is led out through the water outlet at the bottom, after the rotary sieve screen 603 rotates to drive the granular materials to enter the right chamber, the granular materials fall downwards under the action of gravity and are led out from the discharge hole under the guide of the blanking slope 606 due to the absence of the material blocking sieve screen 605;
furthermore, an outer baffle ring 603.1 is vertically and upwardly arranged on the outer periphery of the rotary screen 603, an inner sleeve 603.2 for inserting and driving the rotary shaft 604 is arranged in the middle of the rotary screen 603, and a plurality of separating strips 603.3 are uniformly arranged between the outer baffle ring 603.1 and the inner sleeve 603.2, so that the surface area of the rotary screen 603 is divided into a plurality of mutually independent areas, and excessive water can be effectively prevented from being introduced into the right chamber;
a dewatering port of the centrifugal dewatering machine 701 is communicated to a water inlet of the heat exchanger 501 through a tee joint, so that water resources are utilized as much as possible for recycling;
the utility model relates to a preparation step of 10kv overhead insulated cable is with shielding material production line in thermoplasticity is:
step one, preparing materials: the following materials were prepared by weight:
30-35 parts of EVA;
5-8 parts of white oil;
0.5-4 parts of a dispersing agent;
10-12 parts of a plasticizer;
0.6-0.8 part of ionic liquid surfactant;
30-32 parts of conductive carbon black;
0.1-0.5 part of antioxidant;
12-18 parts of an anti-caking agent;
the plasticizer is a mixture of stearic acid, paraffin, carbon toner and titanium dioxide;
the dispersant is stearate, metal stearate such as sodium stearate, zinc stearate, magnesium stearate;
the ionic liquid surfactant is trisiloxane imidazole ionic liquid surfactant;
step two, mixing materials: pouring powdery conductive carbon black, an antioxidant and an anti-caking agent into a screening mechanism of a primary mixing system, grinding and mixing, communicating with EVA, introducing into a blanking mechanism, mixing and conveying into an internal mixer by using a screw conveyor;
step three, banburying: introducing liquid white oil, a dispersing agent, a plasticizer and an ionic liquid surfactant into an internal mixer for internal mixing;
granulating the internally mixed clinker by a granulating system to form a shielding material;
step five, cooling the shielding material obtained in the step four by a fluidized bed, and then screening by a vibrating screen;
and step six, drying the screened finished shielding material, and storing the shielding material for stock discharge.
In addition: it should be noted that the above-mentioned embodiment is only a preferred embodiment of the present patent, and any modification or improvement made by those skilled in the art based on the above-mentioned conception is within the protection scope of the present patent.
Claims (5)
1. A thermoplastic inner shielding material production line for a 10kv overhead insulated cable comprises an internal mixer (301), a granulation system, a centrifugal dehydrator (701), a high-speed mixer (801), a fluidized bed (901) and a vibrating screen (1001) which are connected in sequence through pipelines; the method is characterized in that:
the system also comprises a primary mixing system, wherein the primary mixing system comprises a screening mechanism and a discharging mechanism; the screening mechanism comprises a mixing box (102), a grinding machine (101) is erected on the mixing box (102), a bottom discharge hole of the grinding machine (101) is communicated with a top feed inlet of the mixing box (102), a screen (103) is horizontally arranged in the mixing box (102), the screen (103) divides the space in the mixing box (102) into an upper chamber and a lower chamber, a vibration motor (104) is arranged on the outer wall of the mixing box (102), a drive shaft of the vibration motor (104) horizontally penetrates through the box wall of the mixing box (102) and is inserted into one end in the lower chamber and sleeved with a vibration wheel (105), a connecting point of the drive shaft of the vibration motor (104) and the vibration wheel (105) deviates from the circle center of the vibration wheel (105), a discharge hole at the funnel-shaped bottom of the mixing box (102) is connected with a blanking pipe (110), and the distance between the drive shaft of the screen (103) and the vibration motor (104) is equal to the radius of the vibration wheel (105), a material returning hole (107) is formed in the inner wall of the upper chamber, the material returning hole (107) is close to the screen (103), a material returning pipe (109) is communicated between the material returning hole (107) and the top feeding hole of the grinding machine (101), and a material returning fan (108) is connected to the material returning pipe (109) in series; so that the powder with insufficient fineness after grinding is pumped back into the grinding machine (101) by the feed back fan (108) to be circularly ground again until the requirement is met;
the blanking mechanism comprises an outer shell (201), the blanking pipe (110) is communicated with a powder inlet at the top of the outer shell (201), an EVA feeding port is arranged at the top of the outer shell (201), a discharging shaft (202) driven by a motor is vertically arranged in the outer shell (201), a discharging spiral sheet (203) is arranged on the discharging shaft (202), the outer diameter of the blanking spiral sheet (203) is consistent with the inner diameter of the outer shell (201) with a cylindrical structure, the left end feeding end of the blanking screw conveyor (204) is inserted in the outer shell (201), and the blanking spiral sheet (203) is positioned above the spiral sheet of the blanking screw conveyer (204), the outer wall of the left end of the blanking screw conveyor (204) positioned outside the outer shell (201) is provided with a liquid material feeding port, a discharge port at the right end of the discharging screw conveyor (204) is communicated to the internal mixer (301) through a discharging pipe (205);
the granulating system comprises a granulating mechanism and a water cooling mechanism, wherein the granulating mechanism comprises a screw extruder (401) horizontally inserted into a granulating water chamber (405), a discharge port of an internal mixer (301) is communicated to a feed end of the screw extruder (401), the top of the granulating water chamber (405) is communicated with the water cooling mechanism through a material pumping pump (502), the water cooling mechanism is communicated with the bottom of the granulating water chamber (405) after passing through a heat exchanger (501) and a water return pump (503), and an extrusion die head (402) is installed on a discharge end of the screw extruder (401) positioned in the granulating water chamber (405); the extrusion die head (402) is provided with a plurality of extrusion holes, one end of a rotating shaft of the screw extruder (401) penetrating through the extrusion die head (402) is sleeved with a scraper (403), and the blade of the scraper (403) is in sliding fit with the outer side surface of the extrusion die head (402);
the water cooling mechanism comprises a water cooling box body (601), a partition plate (602) is vertically arranged in the water cooling box body (601), the partition plate (602) divides the inner cavity of the water cooling box body (601) into a left chamber and a right chamber, a feed inlet of the water cooling box body (601), a water outlet at the bottom of the water cooling box body (601) are communicated with the left chamber, a rotating shaft (604) driven by a motor is inserted into the right chamber, a rotating screen (603) is sleeved on the rotating shaft (604), the outer diameter of the rotating screen (603) is equal to the inner diameter of the water cooling box body (601), the rotating screen (603) penetrates through a slit on the partition plate, a material blocking screen (605) is fixedly arranged in the left chamber and is positioned below the rotating screen (603), the material blocking screen (605) is attached to the bottom surface of the rotating screen (603), the aperture of a mesh hole of the material blocking screen (605) is smaller than the aperture of the rotating screen (603), and the mesh aperture of the rotary screen (603) is larger than the diameter of the material particles, the mesh aperture of the material blocking screen (605) is smaller than the diameter of the material particles, a discharging slope (606) is arranged on the periphery of a discharge port at the bottom of the right chamber, and the discharging slope (606) is positioned below the rotary screen (603).
2. The production line of thermoplastic inner shield material for 10kv overhead insulated cable according to claim 1, characterized in that: the outer edge of the periphery of the rotary screen (603) is vertically upwards provided with an outer baffle ring (603.1), an inner sleeve (603.2) for inserting and driving a rotating shaft (604) is arranged in the middle of the rotary screen (603), and a plurality of separating strips (603.3) are uniformly arranged between the outer baffle ring (603.1) and the inner sleeve (603.2).
3. The production line of thermoplastic inner shield material for 10kv overhead insulated cable according to claim 1, characterized in that: and a dewatering port of the centrifugal dewatering machine (701) is communicated to a water inlet of the heat exchanger (501) through a tee joint.
4. The production line of thermoplastic inner shield material for 10kv overhead insulated cable according to claim 1, characterized in that: the outer wall of one end, inserted in the granulating water chamber (405), of the screw extruder (401) is provided with an annular thread groove, the inner wall of the extrusion die head (402) is provided with internal threads, and the internal threads of the extrusion die head (402) are screwed on the annular thread groove.
5. The production line of thermoplastic inner shield material for 10kv overhead insulated cable according to claim 1, characterized in that: an adjusting nut (404) is screwed on one end of the rotating shaft of the screw extruder (401) which penetrates through the scraper (403).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922262319.2U CN211964539U (en) | 2019-12-16 | 2019-12-16 | Thermoplastic inner shielding material production line for 10kv overhead insulated cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922262319.2U CN211964539U (en) | 2019-12-16 | 2019-12-16 | Thermoplastic inner shielding material production line for 10kv overhead insulated cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211964539U true CN211964539U (en) | 2020-11-20 |
Family
ID=73379577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922262319.2U Expired - Fee Related CN211964539U (en) | 2019-12-16 | 2019-12-16 | Thermoplastic inner shielding material production line for 10kv overhead insulated cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211964539U (en) |
-
2019
- 2019-12-16 CN CN201922262319.2U patent/CN211964539U/en not_active Expired - Fee Related
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Granted publication date: 20201120 |