Iran Glass Industry | بخش های مختلف کوره ها

فضاهاي تحت تاثير شعله و حرارت در كوره هاي ذوب شيشه

The flame space of the glass furnace includes the front wall, the crown, the breast wall,

burner and gas space divider. These parts are not only subjected to the high temperature

corrosion by dust and molten glass but also bear high temperature loads and periodic

temperature fluctuations caused by the exchange of fire (50-100℃)

Traditionally, silica brick is used in those parts, but with the use of the fuel with high heat

value or oxygen-enriched combustion technology, the temperature of the furnace is

increased. So, high quality silica brick, fused cast AZS, α-fused cast alumina block,

α+β-fused cast alumina block and β-fused cast alumina block are widely used now.

The front wall is subjected to the wear and corrosion by the batch materials and servere

erosion by overflow flame. Fused cast AZS block 33# or high quality silica brick and

sintered AZS block arem used. Besdies, air cooling is required to protect the front wall.

The crown and the breast wall are mainly subjected to the honeycomb pitting and burning

by the alkali sulfate. Refractory bricks used in these parts should have good corrosion

resistance to the molten glass volatiles, high softening temperature under load

and good creep resistance. silica brick, high quality silica brick and fused cast AZS 33#

can be used.

The refractory bricks used in the burner should have excellent resistance to high

temperature, corrosion, erosion and thermal shock. When the producer gas is burnt (the

thermal load is low), silica brick and even kaolin large brick can be used, but the tongue

brick must adopt fusede cast AZS 33# block. When high calorific value fuel is burnt (the

thermal load is high), fused cast AZS 33# can be used in the port, oblique arch interlayer

and burner block and fused cast AS 41# can be used in the thinnest part. Slope arch and

arch horizontal channels should use silica brick and the bottom brick can use dense

sintered cordundum brick.The gas space divider of the float glass furnace can use the same

materials with the crown. The gas space divider of the daily glass furnace can use silica

brick or sintered mullite brick.

برچسب‌ها: فضاهاي تحت تاثير شعله و حرارت در كوره هاي ذوب شيشه

تاريخ : چهارشنبه بیست و چهارم آذر ۱۳۹۵ | 19:38 | نویسنده : علیرضا حسینی |

نسوز چینی داخل کوره

تاريخ : چهارشنبه بیست و چهارم تیر ۱۳۹۴ | 9:7 | نویسنده : علیرضا حسینی |

فروش خط توليد شيشه هاي عطر لوكس بلژيك

فروش خط توليد شيشه هاي عطر لوكس بلژيك

http://www.belgiumglass.com

برچسب‌ها: فروش خط توليد شيشه هاي عطر لوكس بلژيك

تاريخ : چهارشنبه پنجم مهر ۱۳۹۱ | 14:45 | نویسنده : علیرضا حسینی |

بچ پلانت

سيستم بچ پلانت:

ادامه مطلب

تاريخ : سه شنبه سی و یکم مرداد ۱۳۹۱ | 12:21 | نویسنده : علیرضا حسینی |

سیستم کنترلی واحد بچ پلانت در کارخانجات شیشه

Batch Plant Process

The batch house is one of the most essential parts of a glass manufacturing site. Allowed down times are normally extremely short which implicates that the batch house operation has to be very reliable. Taking into account that such a batch house normally needs to supply several different recipes of raw material batches to multiple high pull rate furnaces it becomes clear that batch house design and automation asks for lot of “glass expertise”.

With up to 2.800 I/O points Batch House Automation systems are even more complex than furnace automation systems. Invensys Eurotherm delivers system conceptual design, detailed engineering, cabinet building, system programming, testing and installation and commissioning to actual silo and hopper filing, batch weighing, batch transport, mixing and cullet returns.

The batch process of the glass facility is normally divided into four sections. Each of the sections, or process cells, can be controlled either from the Distributed Control System (DCS) or from the Local Control System (LCS).

Silo feeding

It consists of feeding the raw matarial into one of multiple silos or hoppers. When unloaded from the trucks raw material is conveyed through a series of bucket elevators and conveyor belts to the silica, soda ash, limestone, feldspar or sodium sulphate silo. Each of these silos are fitted with level transmitters, pressure switches and over pressure flaps that are all mounted and controlled by the Eurotherm Foxboro PAC System. The silos will have a series of dedusting units that help in trapping the excess dust, which tends to rise as the silos get filled up. These dedusting units comprise of dust collectors and blower fans. At every stage magnetic separators will prevent iron impurities finding their way into silos.

Batch weighing and transport

This section deals with the weighing, dosing and transport issues of the batch plant. Dosing into the weigh scales is either through screw feeders, pneumatic feeders or vibrating feeders.

Both coarse and fine dosing from the feeders into the weigh scales is controlled by Eurotherm AC inverters. The time and sequenced dosing of the raw material is completely controlled by the Eurotherm Suite System. The conveyors are again controlled by Eurotherm AC inverters.

Mixers

Normally a plant is equipped with several mixers each driven by a 110kW motor that can be controlled with a Eurotherm flux vector AC drive. Raw material is fed to the mixer that has to be filled through a swivel pipe. The Invensys-Eurotherm Foxboro PAC also controls the elaborate water and oil feeding options that are used to ensure that the mix reaches the desired consistency before it is fed on to the main conveyor belt.

Cullet is added to the mix on the conveyor belt to get the final mixture that is ready to be loaded in the furnace. When the final mix is not of the desired quality it is rejected and fed to a waste hopper.

Single or multiple batch chargers takes the final mix form the furnace silos from where it is fed into the melting furnace.

Cullet and cullet return

As almost every glass producer is using cullet from external suppliers or cullet that is returned from its own production line. The cullet handling part of the control system deals with the loading of the cullet silo with material of the cullet yard as well as the cullet crushing and return from the float line. Invensys Eurotherm AC inverters control the operation of line crushers, water crushers finger drops and breakers as well as the conveyor belts that transport the cullet directly back into the batching process or to the cullet yard. Incoming cullet from external sources is loaded into a hopper that feeds the cullet to a series of crushers. On its way to the cullet silo the cullet passes magnetic detectors and magnetic separators that keep iron parts away from the silo and finally from the raw glass melt.

Safety

From a safety point of view the systems supplied are in compliance with all the relevant safety and machine directives. Emergency stop switches, pull cord switches zero speed detector units and belt sway detectors secure to bring the plant into a safe state when an emergency does arise.

ادامه مطلب

تاريخ : دوشنبه سی ام آبان ۱۳۹۰ | 16:50 | نویسنده : علیرضا حسینی |

مواد اولیه شیشه و تجهیزات مهم انها


Silica sand	Limestone

Feldspar	Glass cullet

Crushing, Grinding, Weighing and Mixing


Jaw Crusher	Jaw Crusher

Hammer Crusher	Batch Silo

تاريخ : سه شنبه پنجم مهر ۱۳۹۰ | 3:55 | نویسنده : علیرضا حسینی |

خصوصیات بچ شارژر های جدیدکارخانه شیشه

Good glass quality does not depend solely
on correct preparation and handling of the
materials to be melted. Efficient operation
of the batch charger is also important.

Modern batch chargers must fulfil many
criteria. For instance, the prevention of dust
formation during the charging process is
absolutely vital. Nowadays environmental
factors also play an increasingly important
role in this part of the glass production pro-
cess, and the batch charger can have a
positive influence on NOx emissions and
the heat balance of a furnace. The charging
and distribution method is also important as
the requirement for a closed batch blanket
or separate batch piles varies according to
the furnace type.

EME supply not only standard tube, screw,
pusher, vibratory and chute chargers, in
stationary and oscillating versions, but also
specially designed equipment, so all cus-
tomer requirements can be met.

Please contact us if you would like to
receive more detailed information.

Batch charger with pusher

ادامه مطلب

تاريخ : سه شنبه بیست و یکم تیر ۱۳۹۰ | 17:5 | نویسنده : علیرضا حسینی |

تجهیزات بچ پلانت

SPECIAL EQUIPMENT

An important part of the EME programme
is the design, engineering and construction
of equipment for special applications or to
meet specific customer requirements.

For example, EME have developed a
pulverisation concept for container cullet.
This process is used to pulverise contam-
inants so that it is possible to increase the
use of foreign cullet in the container sector,
without detriment to the glass quality.

EME engineers have also made full use of
their expertise in the development of special
equipment for the recycling of glass wool,
television tubes and laminated glass.

Further examples of special equipment are:

• sand moisture measurement with auto-
matic correction
• minor constituent weighing systems

Please contact us, we are sure that we can
provide exactly the right equipment for your
application.

Sand moisture measurement

ادامه مطلب

تاريخ : سه شنبه بیست و یکم تیر ۱۳۹۰ | 16:56 | نویسنده : علیرضا حسینی |

شرکت EME سازنده بچ پلانت های کارخانجات شیشه

Mixing

تاريخ : سه شنبه بیست و یکم تیر ۱۳۹۰ | 16:42 | نویسنده : علیرضا حسینی |

توزین الکتریکی برای مواد در سیستم بچ پلانت کارخانجات شیشه فلوت

Electronic weighing system for raw material of float glass production line

تاريخ : سه شنبه هفتم تیر ۱۳۹۰ | 21:43 | نویسنده : علیرضا حسینی |

شیشه چیست-نمودارویسکوزیته بر حسب دما برای شیشه

Glass is a unique material with the molecular structure of a liquid and the physical characteristics of a solid:
Although glass is often called a super cooled liquid, it is actually a non-crystalline solid.
Unlike a gas whose molecules are dispersed in all directions or a liquid in which the molecules dissolve and form new, weaker bonds, the molecular structure of glass is irregular and randomly arranged.
The most accurate term for the configuration of glass is a vitreous or glassy structure.

Glass has no true freezing temperature:
Most common materials change from a liquid to a solid when they reach their freezing (or melting) temperature (e.g., water turning to ice).
Glass, when cooled from melting temperatures, gets progressively more rigid through a steady increase in its viscosity until it finally becomes solid.
Viscosity is a measure of resistance to flow (e.g., water has a low viscosity while cold tar has a high viscosity).

Illustrated here are the temperature-viscosity curves for a glass and a crystalline material. The curve for glass shows a smooth, steady increase in viscosity with decreasing temperature, while the curve for the crystalline material shows an abrupt increase in viscosity at the freezing point.

http://www.gpi.org

تاريخ : یکشنبه نوزدهم دی ۱۳۸۹ | 10:43 | نویسنده : علیرضا حسینی |

سیستم های مختلف بچ پلانت برای تناژهای متفاوت-ترکیه

BATCHING PLANT AUTOMATION MODERNISATION

Batching plant automation system was renewed in 1997 by changing the PC and the PC Software .

BATCHING PLANT AUTOMATION MODERNISATION :

Batching plant automation system was renewed in 1996 by changing PLC cards and PC.

BATCHING PLANT AUTOMATION :

In this project, the complete automation of the raw material preparation plant is provided by Elimko using Elimko PLC System and PC Software.

This plant serves the 4 glass furnaces with total capacity 550 tons/day.

Old mechanical scales are taken out and new electronic batching scales are installed with load cell.

BATCHING PLANT AUTOMATION MODERNISATION AND ADDING 2 MORE LINES :

Batching plant automation system was renewed and 2 batching lines were added in 1997 also PC and the PC Software is renewed.

WEIGHT TEST SCALES :

Two weight test scales system is installed for Paþabahce Mersin Glass Factory to separate less filled packages.

http://www.elimko.com.tr/v1.5/en/pasabahce.html

تاريخ : شنبه چهارم دی ۱۳۸۹ | 19:56 | نویسنده : علیرضا حسینی |

تجهیزات بچ پلانت کارخانه های شیشه

We design and construct batch mixing systems to automatically mix raw materials.

Automatic batch mixing system

Batch Storage and Transfer System
Raw materials are transferred to the batch hoppers by material transfer systems.Transfer systems such as screw feeders, electromagnetic feeders, conveyors and bucket elevators are used as required, in accordance with properties and transfer volumes of the raw materials.

Raw material hopper

Belt conveyor

Weighing and Mixing Systems
Various raw materials for products are mixed by weighing them using weighing scales and then stirring them using raw material mixers.

Weighing apparatus

Raw material mixer

http://www.ihara-furnace.co.jp/english/en_product/pro-02_01-a.html

تاريخ : شنبه بیستم آذر ۱۳۸۹ | 12:57 | نویسنده : علیرضا حسینی |

سیستم بچ پلانت یوروترم به کار رفته در اساهی گلاس

At the fall of 2006 Asahi India celebrated “ first glass” from its 700 tonnes new float line in Roorkee. It was a spectacular moment for the Eurotherm glass team that saw its 2.800 I/O point Batch House Automation system come to life, and deliver the first batches of raw material to the melting furnace. It is from that moment that Eurotherm involvement changed from system conceptual design, detailed engineering, cabinet building, system programming, testing and installation and commissioning to actual silo and hopper filing, batch weighing, batch transport, mixing and cullet returns.

The batch process of the float line has been divided into four sections. Each of the sections, or process cells, can be controlled either from the Distributed Control System (DCS) or from the Local Control System (LCS).