Low pressure foaming machine

1．Feature:

EMM083 series low pressure foaming machine is high-tech model combined with international technology and after market research for polyurethane industry application. Main parts are imported and the whole equipment has reliable performance and high safety standard.

EMM083-2，adopts one tank for POLY.、one tank for ISO., Two metering units control outflow of metering pumps. Density is adjusted by various mixing ratio. Professional in foam industry manufacture.

2．Technical capacity

2.1 Model： EMM083-2   

2.2 Foam type：soft foaming、half-hard foaming

2.3 Viscosity： (22℃)

        POLY：~2000mPas

ISO：~1000mPas

2.4 Pouring output: 50-250g/sec (1:1), adjust range of mix ratio：5：1~1：1

2.5 Injection time：0.01~9.99 (accuracy reach 0.01s)

2.6 Injection Program No.：

Hand-injection: 10

Auto-injection：60

2.7Measure unit：measure accuracy ≤0.5%

For component’s measurement, it includes bracket with vibration pads, variable frequency motor, coupling, axial piston pumps and valves, electronic pressure switches, etc.

2.8 Pressure limit and control system

Working pressure range is 0~4MPa for components, if beyond setting range, machine stop injection automatically and alarm

2.9 Flow measurement and control system

According to the pump output flow and process requirements mixture components and related parameters; group were traffic speed control motor speed by changing the pump output flow, remove the mixing head, with each injection valve so that A, B flow to each container of raw materials . Flow of each component separately and mixing parameters to detect than the parameters, correction to achieve the component flow regulation and control.

2.10 Component filter

Two components have independent mesh filter between metering pump and barrel. Filtering A accuracy is 330μm. B accuracy is 220μm.

2.11 Mixing head

Materials to the mixing chamber through the spit valve injection precision, synchronization, no plug.

• Mixing head by the motor driving mechanical mixing;
• Between the motor and the stirring shaft through the belt transmission speed can be adjusted by adjusting the motor to facilitate the completion of the push-pull;
• In the test state, the motor and the stirring shaft does not rotate;
• Stir in advance and lag time from the electrical control, optional automatic and manual mixing modes;
• Opening and closing the valve from the cylinder control;
• Mixing head, mixed with a cone of the nozzle chamber, as well as to facilitate removal;
• Adjustable needle valve regulating the pressure in each group were balanced;
• Head control box can be foam, stop foaming, cleaning, air blasting, emergency stop, etc. buttons.

2.12 Rack and mixed head cantilever system

Frame

Materials for the installation of tanks, metering system, mixing head cantilever.

Mixed head cantilever piping system and installation to support the mixing head and procedures for the button box, from the center of rotation to the end of arm length 2200mm.

• A spring balance device to mix head can move up and down;
• Horizontal rotation range of 160 °;

2.13 Mixed head cleaning system

Mixing head cleaning system, including 20L stainless steel barrel, with visual level gauge, safety valve, pressure devices and related instrumentation component.

• Air blast by a solenoid valve control, liquid wash;
• Compressed air used to blow out the residue and the mixture dried first solvent;
• Air blast and liquid washing time by the PLC control, through the OP7 operator panel settings;
• Air blast, wash liquid can also be manually controlled by the process control;
• Way through the manual vent;
• Air blast, liquid wash pipe routing high-pressure pipe solvent composition;
• Set flush pressure 0.15Mpa;
• Stirring shaft rotation when washing the same period;
• Can external signs affixed MC;

2.14 POLY barrel: 1

• Effective capacity: 200 liters;
• Sandwich-type, High quality steel;
• Maximum working pressure: 0.6MPa;
• A heating jacket safety valve set pressure is 0.25MPa;
• A relief valve with pressure gauge, set the pressure of 0.05 ~ 0.45MPa, control feed intake pressure compressed air tank top;
• Output through the three links, two manual valves installed (which bypass valve for sewage);
• Level Gauge: with a visual level, to detect the minimum, maximum, and the appropriate level
• Equipped with a temperature probe: PT100;
• Bucket equipped with stirrer, power 0.75KW, speed 51rpm. With mechanical seal, foam tightness sufficient to meet the technological requirements;
• The maximum allowable operating temperature of 100 ℃;
• Take-insulation layer;

2.15 ISO barrel: 1

• Effective capacity: 200 liters;
• Sandwich-type, inner SUS304 stainless steel;
• Maximum working pressure: 0.6MPa;
• A heating jacket safety valve set pressure is 0.25MPa;
• A relief valve with pressure gauge, set the pressure of 0.05 ~ 0.45MPa, control feed intake pressure compressed air tank top;
• Output through the three links, two manual valves installed (which bypass valve for sewage);
• Level Gauge: with a visual level, to detect the minimum, maximum, and the appropriate level
• Equipped with a temperature probe: PT100;
• Bucket equipped with stirrer, power 0.75KW, speed 51rpm. With mechanical seal, foam tightness sufficient to meet the technological requirements;
• The maximum allowable operating temperature of 100 ℃;
• Take-insulation layer,
• ISO logo outside barrel.

2.16 Temperature Control Unit

eating: 2 × 2KW, sandwich-type thermostat body Two heating units were the two materials can control the heating.

Through the cooling unit, to control foaming temperature process required raw materials (excluding chiller).

2.17 Charging System

Independent gear charging pump, 40L/min

2.18 Electrical Control System

Electrical control system for the import brands key electrical components to ensure safety and reliability of the control system.

Operation panel display each of the following parameters:

• Note feeding time 0.01-99.99;
• The pressure group were too small or too large, such as metering pump overpressure fault information;

Control system is highly fault alarm function, with sound and light alarm devices, equipment, auto stop when necessary.

Control cabinet include:

• Siemens series PLC programmable controller
• Various relays;
• Various contactor;
• Various types of switches, buttons;
• System software and control program

2.19 Piping and air handling system

Piping components, including hoses used to transport components of raw materials, feed tube installed in the mixing head, feed tube with the material back to tank connections;

Liquid tube used to deliver compressed air and cleaning fluid, high pressure pipe from the solvent composition;

Equipment for compressed air through the oil-water separator, respectively, lubricator for processing.

2.20  Supply and equipment weight, area:

  Input voltage: 3 × 380V/50HZ (AC)

Control voltage: 220V/24V

Relay Voltage: 24V

Input power: 15KW  About

Equipment weight: 10000N

Floor Space : 1600X1400mm （LxW ）