AUTOMATED CONTROL SYSTEM OF A SHIFT TASK COMMUNICATING

Automated control system of a shift task communicating (64-bit code) for Welding shop of PJSC ZAZ is intended to exchange the data between the plant database and automated control system of a shift task;

The system provides:

• automatic communicating of a shift task out of the plant database into the current Welding shop Production management system;
• automatic communicating of a 64-bit response code from Welding shop Production management system to the plant database and to dispatcher’s workstation;
• long term archive storage of a shift task parameters.

AUTOMATION OF BODY TRANSFER SYSTEM AT THE BODY FINAL ACCEPTANCE LINE

Body transport conveys different bodies from the rotating table of a skid transport system on the delivered lift empty skid of a final acceptance line.

Performed operations:

• body feed to the skid transport;
• manipulator descending and body clamping;
• manipulator raise;
• horizontal motion of the manipulator from the body pick to the body drop areas – lift table with delivered skid at a final acceptance line;
• lowering of a manipulator with a body on the skid, unclamping and manipulator raise;
• body descending on skid, clamped on the lift table for further transfer on the final acceptance line
• manipulator return to home position.

The control system of sand-throwing machine PN-40

In a case of batch production, large-scale and mass production of castings to improve the quality and increase the productivity of labor machine methods of making molds are used. At the same time, along with molding machines in cast shops sand-throwing machines are used.

The sand-throwing machine is throwing molding machine, which throws a moldable mixture in the flask at the same time filling it and making compaction of the mixture. Usually, sand-throwing machine are used to stuff medium and large forms, since the size is too small flask obtained significant loss of molding sand, and since the size of the flask is too small there it can result significant loss of molding sand, because of missed sand while stuffing near the edge of the flask. The following types of sand-throwing machines are:

• stationary two-armed;
• movable console;
• bridge;
• outboard

Mobile system for remote monitoring and control

Today, an important criterion of any enterprise is the ability to provide information on the results of its work. The ability to obtain this information should not be limited by the territorial location of the user and the presence of computer at the time of receiving the information. It is important that the data should be protected against unauthorized access.

The widespread use of compact devices (phones, tablets), running on the Android operating system, makes it possible to affirm that you can create applications that provide users with obtaining information on this platform.

This mobile system has been developed to monitor the production at the oil-extraction plant. Providing remote monitoring of the arrival of raw materials to the main technological line, as well as receiving information on the output of finished products.

Remote control system of cylinder oxygen filling on the water ramps

Nowadays oxygen has wide application in metallurgy, chemical, petrochemical, pulp and paper, food industries, power engineering, medicine and agriculture. It is obtained from air by cryogenic distillation and water electrolysis.

Oxygen is transported in cylinders. To fill them up gas is supplied through the pipeline to the filling manifold—ramp, to which the cylinders are attached. Filling manifold consists of two identical branches, branch connection node and racks. There are valves for connecting the cylinders on each branch and one end valve for pulling the gas from the branch. The connection node of the branches consists of two valves (gas flow into the branches), pressure gauge and safety valve.

Filling ramps are of two types:

• 2 x 5 — fill up five cylinders in every branch of the ramp (used for oxygen plants, proizvoditlnost to 30 m3/h)
• 2 x 10 — to each branch of the ramp are attached ten cylinders.

When filling up a large number of cylinders, up to 20 cylinderscan be attached to each branch.

Remote control system of cylinder oxygen filling on the water ramps

The remote control system of cylinder oxygen filling on the water ramps can transmit information about the status of the process to the computer located at a significant distance. The resulting information is presented in the form of graphs and tables with their subsequent archiving.

The remote control system of cylinder oxygen filling on the water ramps provides:

• non-stop operation;
• connection with remote nodes via GSM;
• polling the diagnosed equipment;
• processing of of received signals and the received information;
• the possibility of accumulation of statistical data on the process;
• automatic making of reports.

Automatic control system of the vacuum-ammonium drying section

To form a ceramic shell the refractory coating is subjected to air, air-ammonia and ammonium-vacuum drying. The practice shows, the drying duration depends on the number of applied layers and model complexity and differs significantly for different methods. Thus, it is possible to dry coating on air for 4-10 hours, air-ammonia drying lasts for 1-3.5 hours. The most rapid way is the ammonium-vacuum drying which takes from 15 to 30 minutes.

At the end of the process the model composition is removed from shells by melting of different methods (in hot water; in the molten model composition of the same brand, with hot air) at temperatures of 96-200^оС.

To monitor the progress of the drying process and management of the unit the ACS is created.

Automatic control system of a cell-type cooling tower

The cooling tower is a device for cooling a large amount of water by directed air flow. Cooling towers are used in water recycling systems for cooling heat exchangers.

In mechanical-draft cooling tower the cooling process is going on due to evaporation of a part of water when its runoff by a cooling tower filler along which in the opposite direction of the water movement the flow of air is supplied. Evaporation of 1% water leads to decrease in the temperature of the remaining water mass to 5,48^оС.

Automatic control system of a cell-type cooling tower is intended for the fan control using frequency converters.

SCADA-system of aeration device

Transloading of bulk materials is the most common operation in processing of mineral raw materials. The process of moving of bulk materials is accompanied by significant dust emissions. The agglomerate transloading process results the biggest emission of dust. Additionally, you must clear air from harmful substances produced during the solid-fuel combustion.

To reduce dust emission during such production aeration devices are widely used. Their usage allows not only to protect the environment from industrial waste, but also to get economic benefits by returning to the production cycle of dustlike raw material.

SCADA-system the chemical water treatment line

Production of semiconductor silicon requires purified water with low content of suspended solids, metal and acid ions, gases, organic substances and microorganisms.

Tasks of water treatment for production are:

• disinfection of water (purification from microorganisms);
• mechanical impurities filteration;
• clarification (removal of iron and manganese);
• desalination;
• degassing (oxygen removal).

Analysis of water used on semiconductor plants is generally done according to following criteria:

• electrical resistivity (conductivity);
• oxidation
• silica content

The main treatment technologies methods are distillation and ion-exchange resin transmission. After one or two stages of distillation water electrical resistivity reaches 0.3-0.5 MO*sm, and on the output of ion exchange units – 1-20 MOm*sm.

Automated control system of railway wheel rim hardness measurement node

Railway wheels are in the list of the most critical elements of the rolling stock of the rail transport. While train movement the wheels are affected by static, cyclic and dynamic load, and in local areas (while slowing down) – by cyclic influences of high temperature. Every wheel element has a rapid time-varying system of compressive and tensile stresses. The voltage wheel–rail contact lead to breakages, most of which can be classified as rolling surface wair, thermal and contact–fatigue defects, brittle metal fracture.

The most important railway wheels quality parameter is hardness. Hardness requirements for wheels are established by national and international standards.

Automated control system of railway wheel rim hardness measurement node was created to fulfill the railroad wheels quality requirements, and is based on EMKO hardness tester.