Injection molding machine energy-saving programs - waste heat recovery process

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On our planet, every day was taken away by the immense heat of the flue gas, environmental pollution is staggering. How injection molding machine industry energy conservation, improve the working environment, reduce the temperature of the injection molding machine shop is a concern. Waste heat recovery injection molding machine is an important aspect of energy conservation work, if all of the flue gas heat recovery are performed, its cost is very impressive.

1. Energy Saving Injection Molding Machine

Existing injection molding machine is equipped with systems for plastic dehumidifying dryer, electric heating mode to provide heat, carry a certain amount of heat from the exhaust outlet air heat drying drums, when this part of the heat directly into the workshop, a workshop area will increase the dust content in the air and affect the operation of the health of workers, on the other hand will increase energy consumption and increase the financial burden on businesses.

In the case of lack of prior art, this article provides an injection machine heat recovery heat cycle apparatus, melt rubber tube around the heating section to install waste heat collection device when utilizing the heat of the work dried plastic tub and dried dehumidifying.
Have some water, dust and hot air is discharged from the injection molding machine, hot air circulating through the duct into the dust dehumidifying apparatus, processes, through the hot part of the subsequent adjustment of fan heat, provide the impetus for an injection molding machine heat so as to generate the flow loop, after treatment into the injection molding machine, and then circulated through the plastic barrel and heat entering the heat further heat treatment; another portion of hot air and the heated gas 2 have been an injection molding machine, which can adjust the temperature of the injection molding machine within through which air flow to ensure that the actual injection molding machine with a set temperature, respectively. When the temperature inside the injection molding machine than the set low signals, increasing the output of wind speed increase in driving action, into the injection molding machine, the air temperature increases, the temperature rise inside the injection molding machine, when in the injection molding machine temperature than the set temperature is high, a signal, reduce speed and reduce the output of wind, thus reducing high-temperature gas into the injection molding machine, the temperature of the injection molding machine is lowered.

2. Injection molding machine waste heat utilization Problems and Suggestions

These problems are:

(1) of the injection molding machine processing enterprises throughout the country, but the equipment skill levels, a lot of business equipment needs further transformation;

(2) ban plastic industry voices, but in the rural market is still widely used plastic products, cutting costs has become a top priority for enterprise development;

(3) Due to the dissemination of information channels and lack of funds business, which greatly restricted the lot to promote this technology, many enterprises lack advanced energy-saving technologies and mechanisms for clean development mechanism, advanced technology service providers have no way to understand the situation of enterprises;

(4) injection molding machine high temperature waste heat utilization technology after years of development is now more mature, successful cases also showed its economic benefits, but the huge potential of low temperature waste heat utilization injection molding machine needs to be further developed.

Suggestions are:

(1) injection molding machine manufacturing enterprises to achieve management and use of the "right to use scientific management, careful maintenance, regular maintenance, reasonable lubrication, planned maintenance, improve equipment availability, the equipment in good condition";

(2) pollution is the most important energy consumption, thermal energy-saving injection molding machine as one of the main force, it should be introduced more active policy to give appropriate financial support, guide enterprises in the injection molding machine industry to play an active heat recovery effect;

(3) to carry out injection molding machine waste heat resources research and gather relevant advanced technology, management and strengthen information dissemination and other cases, strengthen the research of low temperature waste heat utilization technology of injection molding machines, injection molding machines heat to promote the application of technology.

(4) Recommendation injection molding machine waste heat utilization potential of the enterprise, considering the system as far as possible, the overall improvement, and focus on the refinement of the use of automatic control systems.

3. Economic Benefits

(1) injection molding machine system saving 15% to 35%, saving more than 90% of the dryer;

(2) high temperature 270 ℃ ~ 280 ℃, low temperature -70 ℃;

(3) injection molding machine production workshop temperature drop of up to 3 ° ~ 8 °, the working environment has greatly improved;

(4) reduction of carbon dioxide emissions than the conventional 45% to 50% and no SO2, fly ash, slag, NOx emissions low;

(5) Tensile strength ≥0.02MPa;

(6) corrosion resistance, aging, waterproof, anti-oil, anti-oil pollution, environmental protection, pollution-free;

(7) Easy to install, good service, toughness, flexible bandage;

(8) for different temperatures, the shape of the injection molding machine.

Injection of electrical control system anti-interference

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The so-called interference, that is, other than the useful signal noise to influence the injection molding machine control system to produce,

Injection molding machine injection molding machine interference is divided into internal stakeholders and external interference two kinds of injection molding machines.
Injection molding machine internal interference are:
1, the signal crosstalk between each other
2, components irrational, poor quality components.
3, the adjacent coupling loops.
4, the digital and analog ground impact.
5, parasitic oscillation.
Injection molding machine external interference are:
1, electromagnetic interference, including the close vicinity of electrical equipment-off system, passing vehicles, electromagnetic waves.
2, power supply fluctuations.
3, environmental interference, vibration, temperature and humidity.

Internal interference injection molding machine injection molding machine control system manufacturer about, it can be designed to suppress and eliminate as much as possible. Imports of injection molding machines can do, while external interference is random, regardless of structure, generally the source of interference is also difficult to limit, to take precautionary measures only the specific situation.
Injection molding machine external interference coupling are:
1, common impedance coupling. Different from the ground system ground, causing common impedance, it will inevitably interfere with a total impedance coupling.
2, electrostatic coupling. Electric field is capacitively coupled way, fleeing its total interference lines.
3, electromagnetic induction coupling. Due to the presence of a magnetic field mutual inductance between the power lines and signal lines, and in a closed loop system to produce EMF, which is the interference voltage.
4, leakage coupling: mainly due to the coupling capacitance between adjacent wires or between some of the insulation resistance decreases, the interference between the transmitted signal lines via the conductor resistance

Injection molding machine market potential is enormous

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It is understood that Chinese injection molding machine industry plus huge development potential for the rapid growth of the injection molding machine industry has opened up a vast space. Currently in the injection molding machine products, 83% used injection molding machine. In recent years, due to the needs of the automotive, construction, household appliances, food, medicine and other industries growing injection products, and promote the injection molding machine technology development and improvement.

At present, the Chinese injection molding machine mold industry has developed rapidly, the number of injection molding machine mold steel, quality, variety, specifications, performance and put forward higher requirements. In recent years, domestic and foreign production injection molding machine mold steel, production techniques, technology and equipment, quality, variety, etc. have made great progress. With the improvement of the quality requirements of the injection molding machine mold, countries in the original cold-working die steel, hot work die steel base molding machine mold steel and the three categories, have developed a number of new steel grades. Promote the development of the steel mold industrial product development to high-class, high value-added direction.

Chinese experts believe that mold injection molding machines, injection molding machines proportion of Die casting mold industry will continue to increase. With vehicles and construction materials and other products to the direction of lightweight, die-casting mold the number and complexity of life will be raised higher and higher requirements. With the plastic and steel, precision and complexity of the development of plastic and wood parts and products continues to increase, the proportion of injection molding machine mold will continue to improve its accuracy and complexity will also be with a corresponding increase. Plastic mold rapid economic prospects are very broad. Present more varieties of small batch production era, the 21st century, this mode of production accounted for the proportion of industrial production will reach more than 75%. Thus, on the one hand is the use of plastic cycles, on the other hand pattern changes frequently, asked mold production cycle as short as possible. Therefore, the rapid economic development of the plastic mold will be more cause for concern. Analysis of Chinese injection molding machine mold Status and trends can be seen, along with the use of advanced technology, China's mold injection molding machine has been rapid development. However, compared with many developed countries, China is still a big gap, a lot of the injection molding machine mold design and manufacturing process also need to refer to foreign experience, a lot of sophisticated, high-end, complex molds also need to import.

Therefore, China is now the basis of the level of research on the blend of other advanced technologies to further strengthen the Chinese injection molding machine mold innovation, investments in technology, create more economic and social benefits. Injection molding machine die industry as China's manufacturing development of the support industry, with the support of all levels of government, various manufacturing industries and enterprises, and achieved rapid development. According to the International Association Secretary-General Luo Baihui mold, Guangdong province is China's manufacturing industry in the manufacture of products plays a decisive role. Not only led to the development of injection molding machine mold industry in Guangdong, but also promoted the development of China's mold industry injection molding machine. China is a big country mold injection molding machines, injection molding machine mold industry output value of about 1.8 trillion yuan, ranking first in the world of injection molding machine mold industry.