resin coated sand plant 1-3tph 2

1

Fresh sand storage hopper:

Sand loading volume=2.1CQM

One low level probe is   installed, when sand inside the hopper is close to empty, will give signal to   PLC. When the probe detects no sand, the red lamp on it will turn on.

8

Curing container with low   lever sensor and magnetic pump.

2

Fresh sand pneumatic transportation   vessel.

Valid volume=100L·

One high level probe is   installed. When the probe detects no sand, the red lamp on it will turn on.

The amount of sand feeding   into vessel is decided by this sand level probe or by the timer of sand   feeding , which will be set on HMI.

9

Sand mixer

Mixing motor power=21KW,   cooling fan=3KW

Fitted with stainless   liner and cooling layer around the mixing drum.

Mixing current measuring   instrument connect to PLC, monitor mixing result and motor running status. Over   load current data can be set on HMI.

3

Fresh sand weighing bucket

Valid volume=100L.

Fresh sand will be   transported by pneumatic vessel to this hopper.

Include 3 loading cell,   give signal to instrument to show loaded sand weight in the hopper.

Include 1 dust exhaust   pipe, material PU , diameter=160mm, to led the dust to the filter device

10

Vibrating sieve

Vibrating motor=0.55KW

Fitted with stainless wire   mesh

4

Dust filter device

Remove dust for fresh sand   weighing bucket

Filter square=10SQM.

When dust air exhaust to   this device, dust filtered on the cartridge, clean air will be exhausted to   the outlet. For long time using, dust be filtered on the cartridge and   covered on it will cause pressure to exhaust the clean air, when the pressure   rise to 100/500pa (adjustable), the controller will start automatically to   the blow out the dust covered on the cartridge filter.

11

Cooling drum

Rotation driving motor   reducer: 2.2KW

With circling water   interlayer for cooling production sand quickly.

12

Production sand transportation   vessel.

Valid volume=100L·

One high level probe is   installed. When the probe detects no sand, the red lamp on it will turn on. So   when the probe lamp switches on, means sand is full filled in the vessel. It   starts to transport sand to the production hopper automatically. Every time   the cooling drum stop, no maters sand in this vessel is full or not, it will   start to transport automatically to empty sand inside it.

5

Electricity heater

Heating power: 80KW

Inside layer made by   stainless SS304. Thickness=8mm.

Consistent by 36pcs of   heating elements, 2.5kw of each, supply voltage=220V.

Heater cooling fan:2.2KW,   Designed with hot air circling duct, there is no hot air will be discharge   into the workshop, for energy saving and environment protection.

13

Product sand storage   hopper

Volume = 2.2CBM

Fitted with sand probe on   the high level, when sand in this hopper is full, signal will be sent to PLC.

6

3sets of additions storage   hopper and conveyors.

One low level probe is   installed on each storage hopper.

Each screw conveyor fitted   with motor reducer, motor power=0.55KW, reducer ratio=40:1

14

Dust filter device

Remove dust for production   sand storage hopper.

Filter square=10SQM,   fitted with function of filter automatic cleaning controller.

7

Additions weight bucket

the 3 type additions will   be conveyed to this bucket to measure the weight before feed into mixer.

15

Electrical control panel

Omron PLC system and size   10 inch HMI

Heating control in the   heating chamber by SCR.

Heating power rate can be   set on HMI.

Ol.mixer motor

Check mixer motor breaker and motor running current.

OL.dust collector motor

Check the dust collector fan motor breaker and motor   running condition.

OL.fan for heating chamber

Check the heating chamber cooling fan breaker and   motor

OL.Fan for mixer

Check the mixer fan breaker and motor

OL.cooling drum rotation motor

Check the cooling drum rotating motor and breaker

OL.vibrating sieve

Check the vibrating sieve breaker and vibrating   motor

Ol.screw cv 1

Check the breaker and motor reducer,

Ol.screw cv 2

Check the breaker and motor reducer,

Ol.screw cv 3

Check the breaker and motor reducer,

Mixer1 door limit sw.

When the mixer access door open time over 20   seconds. There will be alarm information exist, and mixer will stop.

So when mixer is running, can open the door and   check mixer inside, but within 20second, must close the door.

Be careful when door open,   sand and spraying curing will cause hurt.

E stop button i0.03

Emergency button is pushed.

E stop button i0.04

Outside emergency button is pushed. ( This button is   short circuit at bottom of control panel, not used)

Curing pump flowing check, no flowing detected.

When curing pump running, if there is no signal of   flowing detected on output pipeline, there will be alarm exist, please check   the flowing sensor installed on the output pipe line.

Curing container is empty

There is water lever detecting sensor on the curing   container bucket, when the curing level is lower than this sensor , or sensor   is not installed correctly. There will be alarm.

Heating chamber is not close

Heater gate does not open, but the sensor of close   position no signal, there will be alarm.

Sand inside chamber is not full discharged, or gate   closing air supply pressure is not enough, will cause this problem.

Weighing hopper gate is not close

Same as above information

New sand hopper is empty

Fresh sand hopper is low level of sand storage, the   lever probe lamp is on.

Production hopper is full

Production sand hopper is full. The level probe lamp   turns off.

Hopper2 is empty

Additions hopper 2 is empty. Level probe lamp turns   on.

(Addition2 is not used, there is probe setting   button on parameter screen to switch it on, this will ignore this hopper ‘s   sand level checking.)

RS485 Communication is fault on mixer motor ampere   measuring instrument.

Check mixer motor current measuring device   communication cable and power supply.

No water in pipeline

Check cooling circling pipeline sensor or water   circling condition.

RS485 Communication is fault on thermal instrument

Check thermal controller device communication cable   and power supply.

Production vessel probe is jammed

When sand sending in this vessel is overtime, but   still full sand signal to the PLC, will cause this problem.

New sand vessel probe is jammed

Same situation as above.

Mixer discharge door is not close

Check mixer discharge door sensor or sand blocked   the door.

Hopper1(resin) is empty

Resin hopper is not enough resin, lever probe lamp   turns on.

Hopper 3 is empty

Additions hopper 3 is empty. Level probe lamp turns on.

(Addition2 is not used, there is probe setting   button on parameter screen to switch it on, this will ignore this hopper ‘s   sand level checking.)

Curing pump is over load , check, the breaker

Check the breaker and motor, check the magnetic gear   is blocked.

Heating chamber air over hot

Over heat output on the heating air temperature   measuring device.

Resin gate can not open

Check resin discharge gate.

Mixing motor current is over the preset valve

Check the motor current or the alarm setting value.

Weighing hopper gate is open , can not send sand on   new sand hopper

When sand sending to the weighing hopper, but   weighting hopper gate is not close.