一，中央供料系統(tǒng)計量稱重加料方案雙螺桿擠出機定量加料設計；這也是大型BOPP薄膜生產(chǎn)線雙螺桿擠出機的中央供料系統(tǒng)方案設計的關鍵，雙螺桿擠

出機必須定量加料。定量進料裝置的設計我們的系統(tǒng)設計了失重計量喂料器，定量給雙螺桿擠出機供料，精度達到3％。～5‰ 。而且，在系統(tǒng)自動控制

上，實現(xiàn)失重計量喂料器的供料與雙螺桿擠出機的螺桿轉速同步，保證每一瞬時**供料。

 擠出機中央供料系統(tǒng)的作中央輸送系統(tǒng)用；該系統(tǒng)是BOPP薄膜生產(chǎn)線原料系統(tǒng)的組成部分，負責主擠出機(雙螺桿擠出機)的供料要出機產(chǎn)能同步的失大

型BOPP生產(chǎn)線雙螺桿擠出機中央供料系統(tǒng)的方案設計及特點作分析。

中央供料系統(tǒng)計量稱重加料方案嚴格控也是大型BOPP薄膜生產(chǎn)線定量加料。定量進料裝置的設計我們的系統(tǒng)設計了失重計量喂料器，定量給雙螺桿擠出

機中央供料系統(tǒng)，出機的加料需要配置附加的定量進料裝置。以便根據(jù)物料性質(zhì)，擠出量的大小，嚴格控制進料量。

中央供料系統(tǒng)計量稱重加料方案在攪拌料斗料位的控制；當輸送堅韌的物料或加料過量時，物料無后退余地，容易發(fā)生超載停轉的事故。加料不足時，出

料不穩(wěn)定。雙螺桿擠機必須幅波動。

定量供料失重計量喂料器的特性，決定了攪拌料斗對其供料的方式是批量給料。因此，攪拌料斗每一次批量給料都會造成料位的大制定量加料。物料一經(jīng)

進入螺桿后，立且被強制向前推進，為了系統(tǒng)的連續(xù)、穩(wěn)定供料，必須對攪拌料斗的料位實施可靠的自動控制。

中央供料系統(tǒng)計量稱重加料方案在設備安裝高度降低，維修方便國外方案把失重計量喂料器、攪拌料斗等大部份設備安裝在較高的地方(離開地面6～13m

處)，自行設計的方案失重計量喂料器離開地面僅（集中供料系統(tǒng)）2～3m，攪拌料斗也不采用稱重計量的方式，對料位實行實時控制。

正常裝態(tài)與非正常裝態(tài)根據(jù)生產(chǎn)線破膜信號轉換。攪拌料斗設定高料位、低料位，當物料達到高料位時，給攪拌料斗自動供料的總量遞減5％ ；同樣，當

物料到達低料位時，給攪拌料斗供料的總量遞增5％。保持攪拌料斗的料位在這一區(qū)間波動。另外，設置過5m。

因此，自行設計的方案較優(yōu)，有利于設備維修保養(yǎng)。合理的方案設計，不僅滿足了系統(tǒng)的工藝要求，而且大大降低了工程制造成本和正常生產(chǎn)的運行成本。  

達安泰機械主要生產(chǎn)：色母機，計量式色母機，體積式色母機，速冷速熱模溫機，集中供水制冷設備，冷水機，工業(yè)冷水機，螺桿式冷水機，中央供料系

統(tǒng)，中央供料配件，自動供料系統(tǒng)，干燥設備，三機一體除濕干燥機，塑料除濕干燥機，多功能模溫機，高光模溫機，等工業(yè)產(chǎn)品。

Central feeding system metering weighing feeding scheme
 

This is also the key to the central feeding system design of the twin-screw extruder, which is the key to the design of the twin-screw extruder. Design of 

the Dosing Device Our system is designed with a weight loss feeder and is fed to a twin screw extruder for an accuracy of 3%. ~ 5 ‰. Moreover, in 

the system automatic control, to achieve weight loss metering feeder feed and twin screw extruder screw speed synchronization, to ensure that every 

instant accurate feeding.

 Extruder central feeding system for the central conveyor system; the system is BOPP film production line raw material system components, responsible 

for the main extruder (twin-screw extruder) for the production of raw materials to be able to synchronize the loss of large BOPP Design and 

Characteristics of Central Feeding System for Twin - screw Extruder in Production Line.

Central feeding system weighing weighing program is strictly controlled large-scale BOPP film production line quantitative feeding. Design of the dosing 

device Our system is designed with a weight loss metering feeder, which is fed to the central feeding system of the twin screw extruder. The addition of 

the dispensing machine requires the installation of an additional dosing device. So that according to the nature of the material, the amount of extrusion, 

strictly control the amount of feed.
The central feeding system measures the weighing and feeding scheme in the control of the mixing hopper material level. When conveying the tough material or the feeding excess, the material has no room for retreat, and it is prone to overloading. When the feed is insufficient, the material is unstable. Due to the first Hee mechanical central feeding system, this twin-screw extruder must fluctuate.
Quantitative feed weight loss measuring the characteristics of the feeder, determines the mixing hopper feeding the way it is batch feeding. Therefore, the mixing hopper every batch of feed will cause the material level of a large volume of feeding. Once the material into the screw, and was forced to move forward, in order to system continuous, stable feeding, must be on the mixing hopper material level of the implementation of reliable automatic control.
Central feeding system weighing weighing equipment in the installation of equipment to reduce the height, easy maintenance of foreign programs to lose weight weighing feeder, mixing hopper and most of the equipment installed in the higher places (leaving the ground 6 ~ 13m), self-designed (Weight feed system) 2 ~ 3m, mixing hopper does not use the weighing method, the material level to implement real-time control. Normal mounted and non - normal mounted according to the production line rupture signal conversion. Mixing hopper set high material level, low level, when the material reaches the material level, to the mixing hopper automatic feeding the amount of the total reduction of 5%; Similarly, when the material reaches the low level, the total supply to the mixing hopper Increased by 5%. Keep the level of the mixing hopper in this range. In addition, set 5m. Therefore, the design of its own program is better, is conducive to equipment maintenance. Reasonable design, not only to meet the system requirements, but also greatly reduces the cost of engineering and production costs of normal production.
The main production: Color Masterbatch, the measurement of color Masterbatch, volume-color Masterbatch, the speed of hot and cold mold temperature, refrigeration equipment, chillers, industrial chillers, screw chillers central feeding system, the central supply accessories , Automatic feeding system, drying equipment, three one machine dehumidification dryer, plastic desiccant dryer, multi-functional temperature machine, high-temperature mold temperature, and other industrial products.