High density polyethylene (1972)

In a store, inflatable toys are demonstrated to customers.

Portrait of a girl.

Inflatable ball.

Polyethylene container.

Products made of polyethylene.

Space devices that use polyethylene.

Polyethylene granules.

Production of polyethylene film.

Greenhouses covered with polyethylene film.

Film in which products are wrapped.

A customer approaches the display case and selects products wrapped in film.

Engineers discuss a part made of high-density polyethylene.

Samples of parts.

Polyethylene parts on an assembly line in the electrical industry.

The part is installed on a picture tube in a TV. Manufacturing a cable using polyethylene.

Manufacturing polyethylene pipes.

Connecting polyethylene pipes by melting the ends.

A cable is laid in a trench.

Properties of polyethylene.

These properties are demonstrated in the laboratory.

Testing polyethylene at low temperatures.

Testing polyethylene for strength and relative elongation.

The advantage of polyethylene over other insulating materials.

Polyethylene has high electrical strength.

Chemical formula of polyethylene.

A tank for storing ethylene.

Chemical formula of ethylene.

Ethylene characteristics.

Ethylene is converted into polyethylene by initiators - oxygen or peroxygen compounds.

Preparation of initiators.

Propane is used to obtain polyethylene.

Chemical formula of propane.

Polymerization regulator propylene.

Chemical formula.

Storage tanks for these elements.

Addition of heat and light stabilizers during polyethylene production.

Other auxiliary substances used in polyethylene production are demonstrated.

Auxiliary substances are subjected to laboratory analysis before use.

Storage tank for nitrogen, which is involved in the production process.

Polymerization reaction.

Chemical formula of polymerization.

Polymerization process in formulas.

Flow chart of high-pressure polyethylene production.

Process control panel.

Flow chart of polyethylene production line.

Four stages of polyethylene production.

The first is ethylene compression to a certain pressure.

The second is polymerization.

The third is primary granulation.

The fourth is polyethylene mixing, stabilization, and coloring.

Control room at polyethylene production.

From the gas separation shop, ethylene under pressure is fed for compression.

First cascade compressor section.

Ethylene undergoes preliminary compression to 250 atm.

Then, through refrigerators and separators for separating lubricant, ethylene is sent to the high-pressure mixer, mixed with high-pressure return ethylene, and sent through filters for compression of 1000 atm. in the second cascade compressors.

Ethylene is sent to the polymerization department.

A reactor in which ethylene is continuously polymerized.

A cartoon explaining the operation of an autoclave reactor with a stirrer.

Reactor, food refrigerator, high-pressure separator.

Continuation of the cartoon.

Tubular reactor.

A cartoon explaining the operation of such a reactor.

Reactor control system.

Instruments recording the temperature along the length of the reactor.

Continuation of the cartoon explaining the technological process.

First-stage granulation department.

A cartoon explaining the operation of the granulator.

Dried granules are transported by air through a pipeline to the processing department.

Here, granulated polyethylene enters the analysis bins through centrifugal separators and automatic batch scales.

Grade bin.

Control panel instruments.

An operator at the panel controlling the production process.

After separating the first stage granulation, the average batch of polyethylene is sent to the bins of the finished goods warehouse or to the bin of the stabilizing mixture preparation unit.

Scheme of further processing of polyethylene.

A device for introducing a stabilizer, which increases the service life of polyethylene products.

To obtain colored polyethylene, the original material is sent to the dyeing bin and to the second stage granulation.

A cartoon explaining the dyeing process.

Dyed polyethylene is sent to the finished goods warehouse.

Packaging of polyethylene granules.

Warehouse.

Panoramic views of the equipment of the polyethylene production plant.

Central control panel for production processes.

Compressors in the first cascade section.

A tachometer monitoring the compressor speed.

The operator records the tachometer readings.

The Fischer valve maintains the pressure in the reactor at the level set by the operator.

The temperature in the reactor is regulated by changing the feed of the initiator.

Signal for decreasing temperature in the reactor.

The operator at the panel makes changes to the process.

A cartoon explaining the regulation of the level in the high-pressure separator.

Cartoon explaining the interlock system.

If the pressure in the reactor increases to a critical level, the interlock system immediately switches off the compressors and initiator feed pumps.

Gas contamination monitoring system for all production work areas.

Sensor signals are sent to the central control panel.

Gas breakthrough is especially dangerous in the first stage compression and granulation sections.

Safety measures at the compressor station.

Visual agitation on the topic of fire safety.

Automatic fire extinguishing system in the reactor chamber.

Dye dosing.

Fire extinguishers.

Cabinet with gas masks.

The repair team eliminates malfunctions.

Process technology monitoring.

Portraits of the plant workers.

Alternating frames showing the plant equipment.