System overview
1, design content
Crushing and drying the scrap iron produced in the mechanical processing, and recovering the waste oil and the treated scrap iron QQ466074696.
2. Functional effect
It can effectively spin off the cutting oil contained in the iron filings, the spin-off rate is more than 90% (that is, the water (oil) content in the treated iron filings is 10% of the unit weight), and the processing capacity is >120kg/h;
Related technical design parameters
1、? Metal crusher: crushing capacity > 120kg/ hour; Power: 3KW(*** two sets), made of Q235；; The equipment is controlled by electronic control, and the electric control box contains buttons such as start and stop, which can be operated manually; The size of the feed hopper of the pulverizer is 560*500mm (the pulverizing bin of the pulverizer should try to avoid foreign objects from entering); Crusher control includes load protection function and fault.
2、? The pulverizer runs with load protection function. If the cutter head is stuck, the electric control will automatically alarm and power off.
3、? Metal spin dryer: spin drying medium: iron filings in machining, spin drying degree: ≥90%, output: 120kg/h, power 3KW；; (The deoiling rate of the equipment can be calculated by the weight difference before and after iron filings or by heating and cooking, and the error of drying rate is 65438 0%). The equipment is controlled by electronic control, which automatically discharges chips and oil stains. The dried scrap iron and the thrown scrap oil can be collected in the collection box.
4、? Chip removal machine: conveying capacity: ≥ 150kg/ hour; Power: 0.2KW；; The chip cleaner includes a chip oil collection tank and an oil pump, which can collect some undried cutting oil and then pump it into the designated oil drum by the oil pump.
5、? Electric cabinet: controls the operation of the whole machine, and controls the start and stop of accessories such as pulverizer, chip remover and dryer. Control the start and stop of the water pump in the liquid storage tank and the receiving tank.
6、? Receiving tank: volume: about 100L. The receiving tank contains a liquid level control system and an oil pump, and its function is to store the cutting oil thrown by the dryer and pump the cutting oil into the designated oil drum by the oil pump. The receiving tank also includes a drain hole to facilitate the subsequent cleaning of impurities in the receiving tank. The oil pump connected to the oil tank is connected to the hose, and the cutting oil can directly enter the oil drum. When the oil drum is full, the oil pump will automatically shut down. After the oil drum is replaced, manually press the start button to restart.
Form and flow of processing equipment
1. Treatment method: manually put the strip-shaped metal chips (blocky metal chips) containing cutting oil into a pulverizer for pulverization, and the pulverized metal chips are uniformly discharged into a metal dryer by a chip scraper for spin-drying and degreasing treatment; The whole machine adopts electronic control, which has the functions of chip oil recovery and metal chip recovery.
2. The flow chart is as follows:
Working principle of each unit
1. The metal pulverizer is mainly composed of worm motor, casing, upper moving knife, upper static knife, lower moving knife, lower static knife and transmission shaft. The reduction motor is a directly connected worm gear reduction motor, which is directly installed on the driving shaft of the pulverizer and transmitted to the driven shaft through gear speed change, so that the upper and lower moving knives on the driving shaft form relative motion with the upper and lower static knives. The upper moving knife is installed in a conical shape, which can make the task fragments enter and be torn and cut at the same time, so that the task fragments are initially broken. The initially broken iron filings move downward to the lower moving knife, and then are further broken by the lower moving knife, and finally the broken iron filings are discharged through the discharge port.
2. The metal dryer consists of a driving motor, a centrifugal dryer system and a frame; The centrifugal drying system is driven by a three-phase motor, and the rotating speed can reach 970 rpm. Under the condition of high-speed operation, the oil attached to the chip is subjected to strong centrifugal force, so that it is separated from the chip, the cutting oil is discharged from the equipment through the oil outlet, and the iron chips are pushed out of the internal cylinder discharge equipment. The machine has the advantages of large single feeding amount, clean chip throwing and thorough solid-liquid separation. According to the special design of the chip, it is durable, easy to operate, safe and reliable, and is an ideal equipment for drying the chip.
3. The chain plate feeder consists of a driving motor, an overload protector, a hinged chain plate and a shell; Through the movement of the chain plate, the device transports the blocky, strip-shaped fragments or small workpieces and non-agglomerated fragments falling on it to the designated station. The device has compact structure, stable operation, low noise and little external interference, and can transport metal materials and non-metal materials with different materials. The chip removal device comprises a chip removal water tank and a water pump, and the collected chip removal oil can be circulated to the chip removal device of the machine tool, and the water pump comprises a liquid level controller.
4. Liquid storage tank and oil receiving tank: there is an oil pump and a liquid level switch in the oil tank to control the high start and low stop of the oil pump to facilitate the recovery of cutting oil;
electronic control system
1. equipment control flow and mode: the equipment controls the pneumatic stop of the equipment through the electric cabinet, and has a fault prompt device.
2. Electrical components: adopt domestic high-quality products; The high and low water level gauges control the start and stop of the water pump.
3. The electric control is located at the side of the filter, which is convenient for operation. There is an iron cabinet protection circuit outside the electrical control system to avoid accidents such as electric leakage.