
In the 1960s, the hardware mold industry began to rise in the South China Sea and reached its peak in the late 1980s. At that time, the threshold of the hardware mold industry was very low, and there was no need for any technology. With 30,000 yuan to buy some old equipment, it was possible to open a home-workshop-style metal mold processing factory. After more than 40 years of development, all types of hardware and mold processing companies have passed 10,000, and the vast majority are labor-intensive small enterprises.
At present, domestic private mold enterprises generally have advanced equipment resources and relatively advanced technology applications. New technologies can be applied widely and quickly in the industry, from design and manufacturing to related materials production, heat treatment, etc., to form an industrial chain, and the advantages of integration are outstanding. However, Luo Baihui pointed out that due to lack of funds and lack of own brands, metal mold enterprises will increase investment in management and technological transformation, expand the proportion of high-end products, and set up domestic sales departments to actively expand the domestic market.
It is necessary to promote the circular economy pilot of the hardware and mold industry, with the principle of “reduction, reuse, and recyclingâ€, focusing on the reduction of resource consumption and waste emissions, actively implementing the preferential policies for the comprehensive utilization of national resources, and developing waste batteries. , reuse of old household appliances, old furniture, bamboo and wood processing residues, mine waste, sewage treatment plant sludge, and recycling of stainless steel processing waste. Vigorously developing industrial recycling economy to promote cleaner production is an important manifestation of a low-carbon economy. Vigorously developing industrial recycling economy to promote clean production is an important manifestation of a low-carbon economy. The mold industry will rely on an extensive development model that mainly depends on the scale expansion and quantity increase in the past, and it will focus on lean, which mainly depends on scientific and technological progress and product quality and level improvement. Change the development model from the development model that mainly takes the introduction and digestion and absorption of international advanced technology to the introduction of digestion and absorption and enhance the independent innovation ability. The development model changes from the characteristics of the industry based on skill type to the management of technology and modern enterprise. Type-based industry characteristics change; vigorously promote innovation-driven development, and actively cultivate and develop new growth points. It is necessary to vigorously develop modern manufacturing service industry, actively and steadily extend and develop the upstream and downstream industrial chains with mold manufacturing as the core, support the construction of mold industry gathering centers, pay attention to the rational distribution in coordination with the mold manufacturing industry, and gradually form complementary and coordinated development. Industrial pattern.
Boiler Auxiliary Equipment
Boiler auxiliary equipment mainly includes water supply equipment, ventilation equipment, fuel supply, slag removal and dust removal equipment, steam and water pipes and accessories, detection instruments and automatic control equipment.
1. Water supply equipment
It is composed of water treatment equipment, water supply tank and feed pump 24. Water treatment equipment is used to remove impurities in water, such as oxygen, calcium and magnesium ions, to avoid scaling and corrosion on the inner wall of steam boiler, and to ensure the quality of boiler water supply. The treated boiler feed water is lifted by the feed water pump and then sent to the upper drum through the economizer.
2. Ventilation
The ventilation equipment includes air supply fan, induced draft fan and chimney. Its function is to provide air for mule fuel combustion and lead out combustion product flue gas from the boiler, so as to ensure the normal combustion, and make the flue gas wash the heating surface at the necessary flow rate of 7a68696466fe78988e69d8331333433626465 to strengthen heat transfer. Finally, the stack with a certain height will exhaust the smoke to the atmosphere to reduce the smoke pollution and improve environmental health.
3. Fuel supply, slag removal and dust removal equipment
This is for conveying fuel to boiler, removing ash and purifying flue gas. Belt conveyor, ash conveyor, ash truck and dust remover, etc. For boilers that need to be pre processed with fuel, fuel preparation such as screening, crushing and coal grinding shall also be included. In addition, the dust remover or flue gas desulfurization and denitrification device installed in the flue at the tail of the boiler is an indispensable auxiliary equipment to reduce the smoke pollution and protect the environment.
4. Check instruments and automatic control equipment
In addition to water level gauge, pressure gauge, safety valve and other instruments installed on the boiler body, in order to supervise, regulate and control the safe and economic normal operation of the boiler equipment, a series of instruments, automatic boiler feed water regulating device, automatic fuel combustion control device, etc. are often installed. Some boiler rooms are also equipped with industrial television and remote control device and even more modern automatic control system, more Scientific supervision. Control boiler operation.
Boiler auxiliary equipment, not every boiler is equipped completely, but with the boiler capacity, type, fuel characteristics and combustion mode as well as water quality characteristics and many other factors to adapt to local conditions, adapt to the times, more practical requirements and objective conditions.
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