CN103538168A - Production technology of special material for black communication optical cable outer sheath - Google Patents

Abstract

The invention belongs to the technical field of plastic material modification, and particularly relates to a production technology of a special material for a black communication optical cable outer sheath. The technological process comprises formulating of recipe, crashing and cleaning, batching and metering, high-speed mixing, centrifugal feeding, extrusion molding, cooling and air drying, cutting and screening, and air sending packaging. The production technology has the advantage that a continuous one-time technology is integrated with waste polyethylene film recovery processing and processing modification, and has the characteristics of high degree of automation, labor saving, no pollution, energy saving and emission reduction; with the production technology, the utilization efficiency of the waste polyethylene film and high product additional value can be effectively improved, the production technology is high in workability and operability and stable in quality, and the cost is saved by more than 20% compared with the production mode of two-step processing, thus the production technology solves the defects such as low efficiency, great energy consumption, low processing capability, high quality fluctuation, difficulty deep-processing modification and high comprehensive cost in the two-step processing method efficiently and reasonably in an environment-friendly manner.

Description

Black communication optical cable oversheath PP Pipe Compound production technology

Technical field

The invention belongs to plastic material modification technology field, be specifically related to a kind of black communication optical cable oversheath PP Pipe Compound production technology.

Background technology

Along with the raising of industrial packaging requirement and the popularization of proportion of crop planting technical ability, make the use amount of polyethylene packaging film and plastic sheeting for farm use increasing, within 2012, domestic polyethylene film class discarded object just reaches 500,000 tons, so many discarded object does not reach reasonable utilization, certainly will cause the pollution of environment and the huge waste of resource.Arrival along with the information age, country's Fiber to the home the propelling of policy and enforcement in succession of high ferro project, demand to polyethylene optical cable oversheath PP Pipe Compound is also growing, and the use amount of Communication ray cable jacket PP Pipe Compound in 2012 reaches more than 300,000 tons.

At present domestic because of film class waste or used plastics light weight, bulk cannot automatic blanking and raw material and material modified existence can not homodisperse difficult point, the basic processing method that adopts two-step process, first waste polyethylene film is carried out to granulation with extruding machine exactly, again resulting polyethylene particle and other are material modifiedly carried out to proportioning mixing, then carry out modification and produce cable jacket material particle.In the process of this recycling, the recovery granulation great majority of waste polyethylene film are completed by individual individual workship, they utilize simple and crude burning coal extruding machine to produce, processing technology is backward, efficiency is low, pollution is large, product quality is uncontrollable, and there is no the ability of mass disposal.Because the extruding machine that burns coal is because of can not temperature control, often make material destroyed by high temperature, performance loss is serious, the raw material that uses this kind of processing method to obtain, carry out modification again and produce polyethylene Communication ray cable jacket material, the uniformity of its product quality, processing stability are also difficult to be protected.Namely also without a kind of maturation process, the direct modification of polyethylene film is processed into a kind of technology of preparing of PP Pipe Compound, collect the recycling of waste polyethylene film and the processing modified disposable continuous processing completing, and possess that automaticity is high, recruitment is few, workable, pollution-free, quality stability is good, the feature of energy-saving and emission-reduction, solve this technique difficult problem, to make a large amount of waste polyethylene films and other film class waste or used plastics obtain efficiently, reasonably reclaim and utilize, also fill up the domestic technology in the processing modified field of technics of reclaim of plastic waste blank.

Summary of the invention

In order to address the above problem, the present invention proposes a kind of black communication optical cable oversheath PP Pipe Compound production technology, automaticity is high, recruitment is few, the feature of pollution-free, energy-saving and emission-reduction, to make a large amount of waste polyethylene films and other film class waste or used plastics obtain efficiently, reasonably reclaim and utilize, also fill up blank in the technology in the processing modified field of technics of reclaim of plastic waste both at home and abroad.

In order to reach foregoing invention object, the present invention proposes following technical scheme:

Black communication optical cable oversheath PP Pipe Compound production technology, technological process is divided into that formula Design, crushing washing, batching metering, high-speed mixing, centrifugal feeding, extrusion molding, cooling air-drying, pelletizing sieve, wind send packing;

Described formula Design is to waste polyethylene film, waste and old high density polyethylene plastics, and antioxidant, modifier and look female, and the science of carrying out is calculated design;

Described crushing washing is: adopt process automation cleaning equipment, mainly a shredder, a disintegrating machine, two friction cleaning machines, a spiral crane, two potchers, a squeezing machine, consist of;

Its described batching metering technique is: main material employing scale division value is the electronic scale of 0.1 kilogram, and auxiliary material employing scale division value is that the electronic scale of 1 gram measures by formula;

Described high-speed mixing is: high-speed mixer volume is 300 liters, 400 ~ 500 revs/min of rotating speeds, and with broken and batch mixing function, incorporation time is 40 ~ 90 seconds;

Described centrifugal feeding is: centrifugal storehouse adopts motor High Rotation Speed to produce centrifugal force the material mixing is sent in extrusion equipment screw rod, 500 ~ 600 revs/min of centrifugal storehouse rotating speeds, each three of moving knife and stationary knifes are inside housed, with broken and batch mixing effect, make modification material be scattered in more uniformly among main material;

Described extrusion molding is: production equipment is the two rank of single screw rod extruders, heater is temperature automatically controlled, and processing temperature is 200 ~ 260 ℃, and upper and lower machine die head adopts Hydraulic Double sieve, the upper and lower machine of filter adopts three layer filtration net, and it is 60 order/60, order/120 orders that screen pack is put order;

Described cooling air-drying is: cooling water temperature is controlled at 40 ± 5 ℃, and air-dry apparatus is the two outlets of blowing-type;

Described pelletizing is sieved and is: pelletizing cutter head is hob type, and vibratory sieve is two-layer, and upper strata sieves diameter Wei5mm， lower floor sieves diameter is 2mm;

Described wind send packing to be: it is blowing-type that wind send device, adopt floating pipe to be connected in storage bin hopper, finished product particle length is 2-3mm, smooth in appearance is without connecting grain, and particle physical index shows and meets the physical property requirement of black polyethylene plastics > > regulation for national standard < < GB/T15065-2009 electric wire.

In described formula Design, its formula basic comprising is

Waste polyethylene film 65 ~ 95%,

Waste and old high density polyethylene plastics 0 ~ 30%,

Antioxidant 0.3 ~ 0.6%,

Modifier 0.3 ~ 0.8%,

Look mother 2 ~ 6%;

In its formula, antioxidant adopts primary antioxidant 1010, amine auxiliary anti-oxidant, copper resistant agent to carry out composite composition, and modifier is comprised of brightener, silicone oil, rheological agent, the look female polymolecularity black agglomerate that adopts carbon black content 40 ~ 45%.

Advantage of the present invention is the recycling of collection waste polyethylene film and processing modified one step completed continuous processing, and it is high to possess automaticity, recruitment is few, pollution-free, the feature of energy-saving and emission-reduction, adopt the present invention can effectively improve the utilization ratio of waste polyethylene film and higher added value of product, it is processing and workable easily, steady quality, the production model cost savings of processing with respect to two-step method are more than 20%, efficiently, rationally, the solution of environmental protection in two-step method processing method efficiency low, energy consumption is large, disposal ability is little, quality fluctuation is large, be difficult for deep processing modification, the shortcomings such as integrated cost height.

the specific embodiment

Black communication optical cable oversheath PP Pipe Compound production technology, technological process is divided into that formula Design, crushing washing, batching metering, high-speed mixing, centrifugal feeding, extrusion molding, cooling air-drying, pelletizing sieve, wind send packing;

Described formula Design is to waste polyethylene film, waste and old high density polyethylene plastics, and antioxidant, modifier and look female, and the science of carrying out is calculated design, and in described formula Design, its formula basic comprising is

Waste polyethylene film 65 ~ 95%,

Waste and old high density polyethylene plastics 0 ~ 30%,

Antioxidant 0.3 ~ 0.6%,

Modifier 0.3 ~ 0.8%,

Look mother 2 ~ 6%;

In its formula, antioxidant adopts primary antioxidant 1010, amine auxiliary anti-oxidant, copper resistant agent to carry out composite composition, and modifier is comprised of brightener, silicone oil, rheological agent, the look female polymolecularity black agglomerate that adopts carbon black content 40 ~ 45%;

Described crushing washing is: adopt process automation cleaning equipment, mainly a shredder, a disintegrating machine, two friction cleaning machines, a spiral crane, two potchers, a squeezing machine, consist of;

Its described batching metering technique is: main material employing scale division value is the electronic scale of 0.1 kilogram, and auxiliary material employing scale division value is that the electronic scale of 1 gram measures by formula;

Described high-speed mixing is: high-speed mixer volume is 300 liters, 400 ~ 500 revs/min of rotating speeds, and with broken and batch mixing function, incorporation time is 40 ~ 90 seconds;

Described centrifugal feeding is: centrifugal storehouse adopts motor High Rotation Speed to produce centrifugal force the material mixing is sent in extrusion equipment screw rod, 500 ~ 600 revs/min of centrifugal storehouse rotating speeds, each three of moving knife and stationary knifes are inside housed, with broken and batch mixing effect, make modification material be scattered in more uniformly among main material;

Described extrusion molding is: production equipment is the two rank of single screw rod extruders, heater is temperature automatically controlled, and processing temperature is 200 ~ 260 ℃, and upper and lower machine die head adopts Hydraulic Double sieve, the upper and lower machine of filter adopts three layer filtration net, and it is 60 order/60, order/120 orders that screen pack is put order;

Described cooling air-drying is: cooling water temperature is controlled at 40 ± 5 ℃, and air-dry apparatus is the two outlets of blowing-type;

Described pelletizing is sieved and is: pelletizing cutter head is hob type, and vibratory sieve is two-layer, and upper strata sieves diameter Wei5mm， lower floor sieves diameter is 2mm;

Described wind send packing to be: it is blowing-type that wind send device, adopt floating pipe to be connected in storage bin hopper, finished product particle length is 2-3mm, smooth in appearance is without connecting grain, particle physical index shows the physical property requirement that meets national standard < < GB/T15065-2009 electric wire use black polyethylene plastics > > regulation, and particle physical index is as follows:

Claims (2)

1. black communication optical cable oversheath PP Pipe Compound production technology, is characterized in that: technological process is divided into that formula Design, crushing washing, batching metering, high-speed mixing, centrifugal feeding, extrusion molding, cooling air-drying, pelletizing sieve, wind send packing;

Described formula Design is to waste polyethylene film, waste and old high density polyethylene plastics, and antioxidant, modifier and look female, and the science of carrying out is calculated design;

Described crushing washing is: adopt process automation cleaning equipment, mainly a shredder, a disintegrating machine, two friction cleaning machines, a spiral crane, two potchers, a squeezing machine, consist of;

Its described batching metering technique is: main material employing scale division value is the electronic scale of 0.1 kilogram, and auxiliary material employing scale division value is that the electronic scale of 1 gram measures by formula;

Described high-speed mixing is: high-speed mixer volume is 300 liters, 400 ~ 500 revs/min of rotating speeds, and with broken and batch mixing function, incorporation time is 40 ~ 90 seconds;

Described centrifugal feeding is: centrifugal storehouse adopts motor High Rotation Speed to produce centrifugal force the material mixing is sent in extrusion equipment screw rod, 500 ~ 600 revs/min of centrifugal storehouse rotating speeds, each three of moving knife and stationary knifes are inside housed, with broken and batch mixing effect, make modification material be scattered in more uniformly among main material;

Described extrusion molding is: production equipment is the two rank of single screw rod extruders, heater is temperature automatically controlled, and processing temperature is 200 ~ 260 ℃, and upper and lower machine die head adopts Hydraulic Double sieve, the upper and lower machine of filter adopts three layer filtration net, and it is 60 order/60, order/120 orders that screen pack is put order;

Described cooling air-drying is: cooling water temperature is controlled at 40 ± 5 ℃, and air-dry apparatus is the two outlets of blowing-type;

Described pelletizing is sieved and is: pelletizing cutter head is hob type, and vibratory sieve is two-layer, and upper strata sieves diameter Wei5mm， lower floor sieves diameter is 2mm;

Described wind send packing to be: it is blowing-type that wind send device, adopt floating pipe to be connected in storage bin hopper, finished product particle length is 2-3mm, smooth in appearance is without connecting grain, and particle physical index shows and meets the physical property requirement of black polyethylene plastics > > regulation for national standard < < GB/T15065-2009 electric wire.

2. black communication optical cable oversheath PP Pipe Compound production technology according to claim 1, is characterized in that in described formula Design, its formula basic comprising is

Waste polyethylene film 65 ~ 95%,

Waste and old high density polyethylene plastics 0 ~ 30%,

Antioxidant 0.3 ~ 0.6%,

Modifier 0.3 ~ 0.8%,

Look mother 2 ~ 6%;

In its formula, antioxidant adopts primary antioxidant 1010, amine auxiliary anti-oxidant, copper resistant agent to carry out composite composition, and modifier is comprised of brightener, silicone oil, rheological agent, the look female polymolecularity black agglomerate that adopts carbon black content 40 ~ 45%.