Plastic Granulator, Industrial Chiller Blog

Hopper Dryer

2008-11-24 – 10:13 下午

The hopper dryers of RDM series are quick-drying equipments for non-hygroscopic plastics and rubber.They can dry the humidified raw material caused by packing,transportation and retrieving.The equipment is best to be directly installed on the plastics or rubber molding machine. It is quick to install and it can save space.For all types of the equipments,the 24-hrs timer is availble as option.
The characteristics of the equipment:
(1)Nice design and appearance
(2)Hot wind extending device in high efficiency and distributing evenly so that high drying efficiency is achieved
(3)Special bend design guarantee hot wind coming in a smooth way.Convenient for maintenance
(4)The hopper and the internal parts are made of stainless steel
(5)As the hopper body is separable from the bottom part,it is very convenient to clean the hopper so that it is quick to add another material
(6)Overheat protection device to reduce the accidents caused by human being or mechnical breakdown
(7)Main power source switch for safety purpose
(8)Magnetic base and normal base with transparent window for options

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RHD series of honeycle dehumifier, together with RDM series of hopper dryer, are used to dry hygroscopic engineer plastics( such as PA, PC, PBT, PET etc.) with high efficiecy. They can connect directly with molding machine or centralizedly dry material.

1. Adopted P.I.D. temperature controller, the equipment can show on screen set temperature and actual temperature.
2. Up-to-date chain-wheel transmission design with more stable performance, to avoid traditional belt’s disadvantage under high temperature.
3. Double condensors structure to ensure lower return air temperature and dew point.
4. The dew point of processing wind can reach -40 degree centigrade. A better honeycomb is optional to use so as to make dew point reach -50 degree centigrade.
5. A dew point gauge is optional to use in order to monitor dehumidifying effect anytime.
6. Novel design, nice appearance, easy to move.

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Mould Temperature Controller

2008-11-23 – 8:21 下午

RTC series automatic mould temperature controller is mainly used for mould
heating and keeping constant temperature,as well as for the fields with same
requirement.This series adopts heat-exchanging principle,using water or high-
heat-conduction oil as media to keep the mould at a constant temperature during
molding, which guarantee top quality for molding.The optimized design ensures
the heating tenmperature up to 200 degree centigrade.The characteristics of
machine:
(1)Computer control,direct-view, easy and simple for operation,PID
temperature control with high accuracy and stable temperature controlling.The
accuracy is within ±1 degree centigrade .
(2)Use horizontal pump,running in
smooth and steady way,stable flow with long life
(3)Cylindrical tube
design,pressurization and explosion-proof.
(4)Automatic alarming
function,alarm and stop automaticly when the system has a
breakdown
(5)Attractive appearance,easily-dismount design,convenient for
maintenance
(6)Water and oil cooling type for customers’ selection

We can produce kinds of Granulator. Also including Industrial Chiller, Plastic Granulator, Dehumidifying & Drying

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Automatic control technology in the granulation machine

2008-11-19 – 9:04 下午

Granulating machine pellet feed as the production process of most major equipment one of its direct impact on the performance of the merits of the pellets production quality. With modern breeding and feed industry, feed an increasingly competitive market, manufacturers need to feed equipment manufacturers to provide high-yield, high energy, high degree of automation and easy to operate, the effect of granulation good granulation equipment. In recent years, the granulation technology and automatic control technology, there have been a number of modern feed production factory automation and modern equipment, granulation, resulting in improved production efficiency and product quality, the feed industry to adapt to rapid development. According to the author in the feed granulating equipment for many years on the research, development and manufacturing experience, summed up the local granulating technology in the automatic control on the use of granulation and machine performance for feed manufacturers to purchase equipment for reference.

1 Granulator feed speed automatic control technology

The main purpose of the technology is to ensure that granulation operating current stability of the machine in order to give full play to the granulation machine production capacity and the prevention of blocking machine. Its principles are: feed-use electrical inverter for variable frequency control, and electronic control center using PLC control technology. Granulator in the work before the first PLC in the control parameters enter Granulator normal working hours required for the current, general admission motor rated current value of 80% to 95% easy granulating to take a larger value of the feed, Pellet feed is difficult to get smaller value; Granulator in the work, PLC control center collected under the current settings and the actual value comparison, if the value is less than the actual settings, to the feed - A frequency converter to increase the frequency of the signal must feed, feed rate, thus increasing amount of feed and vice versa, you need to reduce the frequency of feeding, reduce the amount of feed. It should be noted that, due to feed into the need for pre-granulation in the conditioner for quenched and tempered, take some time to reach the granulation chamber, the feed rate of the main changes in the electrical current changes have a time lag, the time lag Reflected in the PLC program, PLC control center on the requirements of current signals in the frequency of collection should be reasonable, if the frequency of smaller, it can not feed in a timely manner to the speed and the actual adjustment to the current best; faster if the frequency may be over-regulation Consequently, the actual parameters in the parameters of the best swing around more and even result in blocking machine. After reasonable control program, the technology can be a good granulation machine work to ensure that the current stability, give full play to the granulation performance, reduce the incidence of failure of the machine.

2 Granulator quenching and tempering temperature automatic control technology

Quenching and tempering temperature is in the process of granulation is a very important parameter. Different varieties of feed and formula required by the quenching and tempering temperature is not the same, such as heat-sensitive formula contains ingredients of animal feed asked for a transfer to the general quality of the temperature does not exceed 60 ℃, livestock and poultry feed of the quenching and tempering temperatures generally in between 75 ~ 90 ℃ , Aquatic feed the quenching and tempering temperatures are generally between 85 ~ 100 ℃. Specific to each of the feed formula, quenching and tempering temperature has a value of the best, if we are able to do the actual work of the feed will be quenched after the temperature adjustment to the value or the best in its narrow range near the small fluctuations, it can be To maximize product quality to meet the requirements, but the actual production, as the case more complicated, such as unstable pressure steam boiler for steam flow and temperature changes in the size of the amount of feed are also different, and so on, together with the high-level operators There are low, the actual temperature of quenching and tempering is very difficult to guarantee the best value, and sometimes the swing is still relatively large range, so that the effects of quenched and tempered the effect sometimes caused by blocking, at the same time operators need to constantly swap quality temperature to be adjusted , A large number of human waste.

In order to improve the regulation of artificial shortage of quenched and tempered temperature, the temperature automatic control technology to the development and use. It is in the granulation machine conditioner out of the mouth Department is expected to set the temperature sensors, set up in the steam pipeline, such as proportional control valve and install the original amount of steam used to manually adjust the cut-off valves, temperature sensors and control, such as the ratio of PLC controlled by the valve control center to operate at a general interface settings in the granulation machine is installed at the scene on the touch screen. Work by the operator at the touch-screen type of feed made by quenching and tempering temperature, such as a chicken feed formulas required for quenching and tempering temperature is 85 ℃, started after the Pelleting, temperature sensors continuously feed from the quenching and tempering temperature Changes in the current changes in the feedback to the PLC control, PLC control center then-current signals into a signal after the temperature and the temperature set values, according to the comparative value of high and low, and so determined to open the valve proportional control valve size, until Until the temperature reaches 85 ℃. To use such kind of automatic way, temperature fluctuations can be controlled within the scope of the general ± 2 ℃, full production to meet the needs of the system so that the particles of uniform quality and reduce the labor intensity of the operator.

3 Granulator pressure roller ring mold and space technology automatically

Granulator pressure and roll ring module of the space conditioning, granulation operation is an important part of the machine, adjust the gap was reasonable, Granulator high-yield, low energy consumption, good quality particles, and the pressure roller wear a small ring mold, Long life; On the other hand, the granulation machine does not work, there is no guarantee the quality of particles, the pressure roller and die in the ring gap will be over an hour of serious wear, or even ring burst mode. This granulation of the machine operators put forward higher requirements, the need for a wealth of knowledge and regulation of pressure roll it. In order to reduce instability in the operation of man-made factors, but also to reduce the intensity of the work of the people, increase productivity, the pressure roller ring mold and space technology automatically came into being. It mainly by the implementation of the fuel tank systems, sensors and angle PLC control system, the implementation of the fuel tank system is to promote the role of the pressure roller clockwise or counter-clockwise rotation, even if the pressure roller and a ring mold to increase or decrease the gap; Angle sensor is the role of the perceived pressure roll angle changes and changes in the transmission of signals to the PLC control system; PLC control system is responsible for the pressure to roll into the perspective of the changes in pressure and roll ring module changes in the size of the gap and set the value gap Compared to this system, the implementation of the fuel tank to determine the direction of movement and size until the actual gap and the gap set in error to the extent permitted by the same date. The system can be on-site touch screen as a “man-machine dialogue,” the interface is easy to operate to regulate the high-precision, pressure and roll ring module can be controlled in the space of error ± 0.1 mm, and granulation machine can work at any time adjustable, Greatly enhanced the reliability and work efficiency, reduce labor intensity, pressure and roller ring mold to reduce the wear and tear, greatly extended the life.

4 Granulator hydraulic automatic transmission belt take-up technology

Granulation of the belt-drive machine operation to facilitate maintenance, but the need for regular inspection of the belt tightness. If the belt tension manually adjust body belt in use because of wear and tear, when maintenance is not in a timely manner, with the potential to cause slipping belt and belt burned. Granulator hydraulic automatic belt tensioning technology, through a belt take-up to the fuel tank, the fuel tank of oil from the hydraulic pump and size can be adjusted to meet the needs of the belt tension. Work in the granulation machine before the first start the pump, in order to set the belt tension for the take-up, and granulation machine work has always been constant, there is no belt worn loose change phenomenon. When the end of the work can be fully came to a complete stop after the Pelleting machine to turn off the hydraulic pump, the fuel tank pressure disappears, then release the belt, the belt play a role in the protection, to extend its useful life.

5 spindle bearing and roller bearing automatic pressure lubrication technology

Spindle bearings and roller bearings automatic pressure lubrication technology, is due to granulation machine spindle bearing and pressure roller bearings in high-temperature, high humidity and dust of the times, bearing the need for good lubrication granulation machine in order to guarantee the Normal operation, it needs a short period of lubrication, 1 h for the general lubrication 1; large amount of lubricating oil, generally a Taichung-based Granulator work will take about 12 h plus 1 kg of oil, therefore, if the manual lubrication , The laborious and time-consuming, and difficult to ensure the amount of lubricants. Self-lubricating technology to overcome the shortage of manual lubrication, lubrication It is time to control the number of lubrication and lubrication of the pump to provide regular quantitative lubricants, granulation and through the back-end machine spindle grease to block the distribution of each spindle bearing and pressure Roller bearings allocated a certain amount of lubricant to ensure that the granulation machine bearing lubrication quality, and save a lot of manpower.

6 Granulator security of automatic control technology

6.1 pressure roller ring mold and automatic protection system

In order to prevent the pressure roller between the module into the ring and iron or other impurities in a big hard roll and the pressure on the ring mold damage, the main axis in the back-end set up a special safety pin or hydraulic hold hoop-style security agency, Granulator serious overload, over the safety of the shear pin or hold more than a hoop in the film friction and friction of the friction disk, then cut off security or friction disk rotation, the safety switch trigger action, and action signaling To the control center, control center issued by the shutdown command in order to pressure on the roller ring mold and play a role in protection.

6.2 granulation machine gun belt automatic control

In order to prevent the transmission belt to reduce skidding and burning efficiency of the belt in the driven pulley speed sensor can be installed, you can sense the speed pulley. When the belt loose post-spin change, driven pulley speed will be reduced, lower than the normal speed when the value of a certain amount, generally set to the normal 90% to 95% of the control center will report to the police, and then make off Granulator Power down to prevent burning belt.

6.3 pass Granulator door automatic unloading bodies

Granulator work sometimes because of feed raw materials, water temperature, or have a load off the stage is set, if you had not dealt with, may be due to overload and blocking, operated by the usually observed in the current overload when open Bypass the door switch control, so that raw from the by-pass out of the door until the current fall back to normal when closed. Bypass automatic unloading door for the control of the above principles and the process is similar to the control center when it is detected more than the actual current settings, would bypass the door on the telescopic cylinder control of a solenoid valve signal to open the door, next to the So pass the door was open cylinder, the outflow of feed, the current decline immediately, and then bypass the door and then shut down automatically. Controls to prevent the above-mentioned process of granulation machine that may arise at any time blocking machine, operators no longer need to observe at the scene has been looking at changes in the current circumstances, to reduce the workload of the people.

We can produce kinds of Granulator. Also including Industrial Chiller, Plastic Granulator, Dehumidifying & Drying

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Plastic Granulating & Plastic recycling

2008-11-11 – 9:54 下午

We have facilities to size reduce scrap plastic from injection mouldings to large, heavy lump and purgings down to a regranulated chip or reprocessed pellet. Equipment for the washing and drying of certain polymers is available, as is the separation of some mixed polymers. Operating in conjunction with the recycling and processing of scrap, is the purchasing and selling of regrind, reprocessed, baled or scrap thermoplastics.

We can produce kinds of Granulator. Also including Industrial Chiller, Plastic Granulator, Dehumidifying & Drying

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Plastic Granulator

2008-11-11 – 9:46 下午

granulator, crushing machine, recycling machine, plastic machine, plastic machinery, china machine, machine supplier, machine manufacturer.

In 2006, the Garden purchased a granulator and conveyor to process plastic into chips, doubling the former capacity. In 2007 and 2008, materials were separated by the type of plastic so that it could be more easily marketed and recycled into other products. Proceeds from the annual collection are used to support part time staff to assist with the processing of plastic and continue the collection from year to year. In addition, we have contracted with recycling companies to make various products.

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Industrial Chiller

2008-11-10 – 1:30 上午

A chiller is a machine that removes heat from a liquid via a vapor-compression or absorption refrigeration cycle. A vapor-compression water chiller is comprised of the 4 major components of the vapor-compression refrigeration cycle (compressor, evaporator, condenser, and some form of metering device). These machines can implement a variety of refrigerants. Absorption chillers utilize water as the refrigerant and rely on the strong affinity between the water and a lithium bromide solution to acheive a refrigeration effect. Most often, pure water is chilled, but this water may also contain a percentage of glycol and/or corrosion inhibitors; other fluids such as thin oils can be chilled as well.

Chilled water is used to cool and dehumidify air in mid- to large-size commercial, industrial, and institutional (CII) facilities. Water chillers can be either water cooled, air-cooled, or evaporatively cooled. Water-cooled chillers incorporate the use of cooling towers which improve the chillers’ thermodynamic effectiveness as compared to air-cooled chillers. This is due to heat rejection at or near the air’s wet-bulb temperature rather than the higher, sometimes much higher, dry-bulb temperature. Evaportively cooled chillers offer efficiencies better than air cooled, but lower than water cooled.

Water cooled chillers are typically intended for indoor installation and operation, and are cooled by a separate condenser water loop and connected to outdoor cooling towers to expel heat to the atmosphere.

Air Cooled and Evaporatively Cooled chillers are usually intended for outdoor installation and operation. Air cooled machines are directly cooled by ambient air being mechanically circulated directly through the machine’s condenser coil to expel heat to the atmosphere. Evaporatively cooled machines are similar, except they implement a mist of water over the condenser coil to aid in condenser cooling, making the machine more efficient than a traditional air cooled machine. No remote cooling tower is typically required with either of these types of packaged air cooled or evaporatively cooled chillers.

Where available, cold water readily available in nearby water bodies might be used directly for cooling, or to replace or supplement cooling towers. The Deep Lake Water Cooling System in Toronto, Canada, is an example. It dispensed with the need for cooling towers, with a significant cut in carbon emissions and energy consumption. It uses cold lake water to cool the chillers, which in turn are used to cool city buildings via a district cooling system. The return water is used to warm the city’s drinking water supply which is desirable in this cold climate. Whenever a chiller’s heat rejection can be used for a productive purpose, in addition to the cooling function, very high thermal effectivenesses are possible.

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Plastic Granulator

2008-05-25 – 8:36 下午

A plastic granulator is a machine used to break plastic products down so they can be recycled. Recent surveys report that discarded bottles, bags, packaging, and other plastic products represent as much as 40% of the solid waste tossed out by residents in communities across the nation. Unfortunately, plastic is not biodegradable. Therefore, it does not break down naturally to become part of the earth. This means recycling is the only option for reducing the amount of plastic in landfills.