Automatic PVC Mixing Centralized Feeding System For Plastic
Material Industrial
Automatic PVC Mixing Centralized Feeding System The system
description
The PVC materials compounding system is the former part of the PVC
production line, which is one of the key to the long-term stable
production of the whole line.The automation degree of the
compounding system determines the automation degree of the whole
production line.
Automatic PVC compounding system is usually composed of the
following subsystems: material collection system, material
conveying system, metering batching system, mixing unit, material
storage equipment,
feeding system, dust removal system: central control system,
central monitoring system ,etc.The composition and principles of
the subsystems are described as below:
1. Automatic PVC Mixing Centralized Feeding System Material
collection system
The material collection system is used to collect bulk or bagged
raw materials into storage silos in various ways.
Bulk materials can be sent directly to the storage tank through the
pneumatic conveying device on the tanker, and the bag materials is
collected by the bag opening station.
2. Automatic PVC Mixing Centralized Feeding System Material
conveying system
The conveying of the materials is the key to the automation of the
compounding and feeding system. In the PVC automatic compounding
system, the conveying system occupies a large proportion:Including
the conveying from the bagging station to the transition silo upon
the batching scales,the finished materials conveying from the mixer
to the finished silo ,and also the finished materials conveying
from the finished silo to the extruder.
3. Automatic PVC Mixing Centralized Feeding System Weighing
batching system
In the PVC automatic compounding system, the weighing batching
system is normally composed of two separate subsystems: a set of
main materials weighing batching system and a set of auxiliary
materials weighing batching system. Each batching system has the
feeding silo for each material,also with the screw
conveyor,batching sales and etc.
4. Automatic PVC Mixing Centralized Feeding System Mixer Unit
The high speed hot and cooling mixer is a preferred equipment
suitable for the PVC blending process, which is a combination of a
high speed hot mixer and a horizontal cooling mixer. The high speed
hot mixer has three mixing blades and diversion section etc.Under
its action, materials will rotate ,flip and other complex movement
with high speed,so that the temperature will rise rapidly to meet
the requirements of the material mixing process.Then materials
enter the horizontal cooling mixer,it will cool down quickly to
meet the production process requirement by low-speed mixing blade
movement and heat exchange with the water cooling system.
5. Automatic PVC Mixing Centralized Feeding System Material storage
equipment
Material storage equipment are separately silos mainly used for
storing raw materials and finished materials.
PVC raw material storage silo has 150m3 of effective volume.The
material touching storage materials are all stainless steel,and
polished . The outside surface is done with pickling passivation
treatment.Consist with silos,dust removal equipment upon the silos
,steel ladder,fences,
decompression cap,gate,and other components etc.
Can automatically control the materials incoming and outgoing by
setting the level gauge, it has nice appearance,strong
structure,wind proof and other features.
In order to ensure the qualified rate of the finished tubes, it is
necessary to consider the surplus volume of the finished material’s
silos, normally not less than 12 hours, and also the finished
material silos’ design adopts the homogenized structure to ensure
that the materials are not separated from the stratification.
6. Automatic PVC Mixing Centralized Feeding System Dust removal
system
The model of the dust collector is varies depending on the case of
use.We use the imported coating materials as the filter material in
dust collector,the filter aperture’s size should less than 0.5
microns, which is the most advanced filter material in the world.
The service life can be extended to more than 10 years and don’t
need to change if choose the sintered filter.
7. Automatic PVC Mixing Centralized Feeding System Electrical
Control System
The electrical control system connects the complete set of
equipment together.It is the guarantee of long-term stable
operation of the compound mixing line.We designs the electronic
control system including the on-site operation cabinet and the
central control system, and can realize the following functions:
Automatic detection functions:
Control functions (the entire system achieve three-level control):
Automatic alarm,Interlock functions:
Self-diagnostic functions:
Management functions:
8. Automatic PVC Mixing Centralized Feeding System Auxiliary
equipment:
The auxiliary equipment includes an operating platform,
sieves,rotor splitters, switching valves,pipes and etc.
9. Automatic PVC Mixing Centralized Feeding System Feeding system
for extruder
Feeding system is composed of vacuum feeder or spring feeder.
Vacuum feeder composed of the feeding funnel, suction gun,vortex
fan, pulse filter,butterfly valve and storage silos. The biggest
rated feeding capacity is more than 1500kg / h.
Spring feeder is a rodless screw conveyor,can be bend in a certain
degree, suitable for the feeding for the extruder.
Automatic PVC Mixing Centralized Feeding System Terms &
conditions
1. Automatic PVC Mixing Centralized Feeding System Training and
services
1) Instruction of field installation
2) Equipment field debugging and trial run if required by the buyer
according to the rule.
3) Training on field operation and maintenance for customer's
personnel.
4) Provide technical consultation service on long-term basis.
2. Automatic PVC Mixing Centralized Feeding System Installation and
debugging
When the machine arrives at site, the customer should install it on
the appropriate position according to the specifications provided
by the supplier; and then the supplier should send its engineers to
the site if requirement approved,in order to instruct the customer
about trial run and debugging. The customer should provide
necessary conditions for trial run and provide materials for trial
run, and should decide the processing conditions in trial run with
consideration of the supplier's opinions.
1) The price covers the pre-commissioning of the machinery before
shipment at Seller's site. The Seller is obliged to test the
performance of machinery.
2) The Buyer is obliged to provide suitable space, tools and
manpower for the commissioning of the order.
3) This Price does not included commission and installation in
buyer’s factory.
3. Automatic PVC Mixing Centralized Feeding System Pricing
1) The above mentioned quotation is valid within 30 days counted
from the issue date of quotation.
2) The price and machinery configuration should be updated and
confirmed by the Seller in the case that the quotation has been
beyond the validity period.
3) The above mentioned quotation is based on Ex works. Sea
transportation and wooden case packing is excluded.
4) The price does not cover the cost of testing material. The
testing material will be supplied by the Buyer. Or the Seller will
purchase the material as requested by the Buyer at Buyer's cost.
5) The price does not include the cost of commissioning at Buyer's
site.
The Seller reserves the right to modify the specification and
design of the machine in order to enhance the product quality.
4. Automatic PVC Mixing Centralized Feeding System Terms of payment
1) T/T and L/C (irrevocable, at sight) both are acceptable.
2) 35% of the total contract value should be paid in advance,
balance 65% of the total value is to be paid before shipping at the
Seller’s factory.
5. Automatic PVC Mixing Centralized Feeding System Time of delivery
1) When the contract becomes valid, the machine should be delivered
within 60 days since receipt of the advance payment. And the
equipment will be in normal operation after debugging within two
weeks after arrival.
2) During production, provided that the Buyer requests to modify
the specification of the order, the Buyer shall notify the Seller
of this modification in written form. Upon receipt of the notice,
the Seller will quote to the Buyer the cost of this modification
and notify the Buyer of any possible delay due to this
modification.
6. Automatic PVC Mixing Centralized Feeding System Debugging charge
The buyer pays for the plane ticket of round-trip abroad and food
and accommodation of buyer’s country during debugging. And the wage
of technicians should be paid by the customer (80USD/day).
7. Guarantee clause
1) Guarantee is 1 year (excluding human factor and wearing parts).
2) Under proper working conditions, 12 months from the date of
completion of commissioning at the buyer's site, and should be at
the latest within 14 months from the issuing date of Bill of
Lading.