How to do the high temperature of the waste plastic granulator at work

(1) precautions for the use of plastic granulator for plastic machine

1. General Notices of plastic granulator: 1, to be positive operation; avoid reversing. 2, do not let the machine run on an empty stomach. It is necessary to heat the machine and feed it, so as to avoid sticking. 3. No entry of iron and other debris is strictly prohibited in the feed hole. In order to avoid accidents and affect production. Two, matters needing attention in the working process of plastic pelletizer: 1. Pay attention to the temperature changes of the fuselage at any time. Until the bar is normal. 2. When the bearing part of the reducer is burned, or should be accompanied by noise, it should be repaired in time and replenish. 3. Bearing parts of the bearing chamber of the main engine should be stopped for maintenance and butter when burning parts or bearing noises. When working normally, the bearing chamber is filled with butter once every 5-6 days. 4, pay attention to find out the operation rules of the machine, such as: the machine temperature is high or low, the speed is fast and slow, and can be handled in time according to the situation. 5, when the fuselage is running unstable, we should pay attention to check whether the gap between the couplings is too tight, so we need to relax it in time.

Three, plastic pelletizer first boot operation method: 1, before starting the machine, first increase the temperature for about forty or fifty minutes. The temperature will be raised to the hand to pull the motor triangle band until it is free; eight times to ten times according to the normal working rotation. Then continue to heat up for about ten minutes, and then start the machine, but continue to warm, because the normal production needs to continue to supplement the heat; according to different properties of the plastic adjustment of different temperatures. 2. When the plastic pelletizer is working normally, the machine temperature should be kept stable. Near the blowhole, until the temperature of the head should be maintained at around 200 c (refer to acrylic and b). 3, the feeding should be uniform, and add foot. The speed of feeding material and the speed of feeding are suitable. Otherwise, it will affect the quality and production of the particles. 4. When the machine is shut down, the mainframe should completely cut off the power supply. Head plugs (with wrenches) must be taken off. Pre heat before the next use.

(two) how should the waste plastics granulator work at high temperature?

In the process of using the waste plastic granulator, the machine may have such a problem, of which high temperature is a common problem. This article is intended to help you find out the general reasons and treatment methods:

Common reasons: 1. the tank volume is too small, the heat dissipation area is not enough, the cooling device is too small. 2. the quantitative pump oil supply system that selects the oil pump capacity according to the fast forward speed will have most of the excess flow at the working stage and overflow from the overflow valve under high pressure. In the 3. system, the unloading circuit fails or the unloading loop is not set, the oil pump can not be unloaded when it stops working. All the flow of the pump is overflow under high pressure, resulting in overflow loss and heating, resulting in temperature rise. 4. the fit gap is too small, or the gap is too large after the use of wear. The volume of internal and external leakage is large and the volume is lost, such as the pump's volume efficiency is reduced, and the temperature rises quickly. 5. high temperature and high temperature in the working environment result in higher oil temperature. 6. the viscosity of the selected oil is not proper, the viscosity is large, the viscous resistance is large, the viscosity is too small, the leakage increases, and the two conditions can cause the heating temperature rise.

Solution: 1. according to different load requirements, check and adjust the pressure of the relief valve regularly to make it right. 2. reasonably choose hydraulic oil, especially oil viscosity. If conditions permit, try to use a lower viscosity to reduce viscosity and friction loss. 3. improve the lubrication condition of the moving parts to reduce friction loss, reduce working load and reduce fever. 4. improve the assembly quality and accuracy of hydraulic components and hydraulic systems, strictly control the fit clearance and improve the lubrication conditions. The sealing materials with small friction coefficient and improved sealing structure are adopted to reduce the starting force of the hydraulic cylinder as far as possible, so as to reduce the heat generated by the mechanical friction loss. 5. if necessary, the cooling device is added.

Here is only a list of some common situations, but also the actual operation.

(three) problems that should be paid attention to when using hydraulic system of plastic press.

1. users should understand the working principle of the hydraulic system, be familiar with various operations and adjust the position and rotation of the handle.

2. before driving, check the adjusting handle on the system, whether the handwheel is moved by the unrelated personnel, the position of the electrical switch and the stroke switch is normal, the installation of the tool on the host is correct and firm, and then the exposed part of the guide and the piston rod is wiped, and then the car can be opened.

3. when driving, first start the hydraulic pump that controls the oil circuit. When there is no special control oil pump, the main hydraulic pump can be started directly.

4. hydraulic oil should be regularly checked and replaced. For new hydraulic equipment that is put into use, the oil tank should be cleaned for 3 months or so, and new oil should be replaced. Wash and replace oil every six months to 1 years later. 5. pay attention to the oil at any time during work. When working normally, the oil temperature in the tank should not exceed 60 C. Oil temperature is too high should be managed to cool, and the use of high viscosity hydraulic oil. When the temperature is too low, it should be pre heated or run intermittently during the running process, so that the oil temperature will gradually increase and then enter the official running state.

6. check the oil surface to ensure that the system has enough oil.

7. exhaust system should be exhausted, and no exhaust system should be reciprocating for many times to discharge natural gas.

8. the fuel tank should be sealed. The air holes on the tank should be provided with air filters to prevent the invasion of dirt and water. The oil should be filtered to clean the oil.

9. in the system, coarse and fine filters should be allocated according to needs. Filters should be checked, cleaned and replaced frequently.

10. for the adjustment of the pressure control components, the system pressure control valve is first adjusted, the overflow valve is adjusted from the pressure to zero, and the pressure is gradually raised to reach the specified pressure value; then the pressure control valve of each loop is adjusted in turn. The regulating pressure of the safety relief valve of the main hydraulic pump is usually larger than the 10%--25% of the working pressure required by the actuating component. The pressure of the fast motion hydraulic pump is generally greater than the required pressure of 10% --20%. If the unloading pressure is used to control the oil circuit and the lubricating oil path, the pressure should be kept within the range of 0.3--0.6MPa. The adjusting pressure of the pressure relay should generally be lower than the oil pressure 0.3-- 0.5MPa.

11. the flow control valve should be transferred from small to large flow and should be adjusted step by step. The flow control valve of synchronous motion executive element should be adjusted at the same time to ensure the smoothness of movement.

(five) plastic granule machine holding time is not enough not to start operation screw plastic machine.

Because the knowledge of the operator is not good enough, many times are caused by the malfunction of the machine, so the correct operation of plastic machinery (including plastic granulator, single screw granulator, waste plastic granulator and so on) has been used to prolong its life. However, the use of plastic machinery has not been used in our daily life. Enough attention will also be given to some unnecessary problems. So what should we pay attention to when we use plastic machinery?

1, plastic machinery operation should be strictly according to the operation rules requirements, shall not operate illegally in the non operation station. In order to ensure the reliability of the safety device, we must not destroy the machinery's safety precautions in pursuit of efficiency.

2, when the plastic pellet machine operates, the material temperature does not reach the set temperature, and the holding time is not enough.

3. Operators should be trained and familiar with the structural performance and operation procedures of plastic machinery.

4, pay attention to fire safety, fire extinguishers need to be placed near the use of heat transfer oil equipment.

5, failure or abnormal situation must be reported to the relevant personnel, and professional maintenance personnel to deal with. If an abnormal phenomenon affecting safety is found, press the emergency stop switch immediately.

6, do not use low quality material with metallic impurities or silt, and the metal objects that may be dropped near the inlet can not be placed in order to prevent the wear of the screw or cylinder or to cause the death and damage of the card.

7, the operation of the plastic granulator should use the hydraulic oil that meets the requirements of cleanliness, viscosity and other indexes, and provides sufficient flow of cooling water for the oil cooler, so as to prevent the hydraulic components and pipelines from oil pollution or high temperature to produce clogging, oil leakage and other damage phenomena. The extruder should fill the reducer with the lubricating oil that meets the requirements.