In terms of solid waste compression devices, many domestic manufacturers have developed garbage collection and compression stations suitable for China's national conditions. As mentioned above, Hairuikang Environmental Protection Equipment Co., Ltd. has developed a three-in-one collection station integrating box-type garbage sorting, biochemistry and collection for the combined transport of domestic garbage in Shanghai. Shanghai Green Ring Machinery Co., Ltd. has developed SGC mobile domestic waste compression collector controlled by microcomputer program, which integrates compression collection and garbage collection, and can realize multi-machine operation in one box. Generally speaking, these products integrate mechanical, electrical and hydraulic technologies, with high degree of automation, low investment, high efficiency, no pollution and low use cost, which are very suitable for garbage collection and transshipment in urban communities in China. ?
Shanghai Jianshe Road and Bridge Machinery Equipment Co., Ltd. demonstrated its inorganic multi-purpose crusher, which is suitable for crushing rubber tires, waste packaging materials (wood, cardboard, hard plastics), dead branches and other solid materials. The decomposed ultrafine particles can be used as renewable materials. The industrial and construction waste crushing station displayed by it can treat waste reinforced concrete and other construction waste; In addition, the horizontal spiral sedimentation solid-liquid separation equipment is also shown. ?
In terms of foreign exhibitors, Finland Patek Freight Handling Technology Co., Ltd. has shown great strength in solid waste collection and transshipment equipment. MULTILIFT integral self-loading and unloading hydraulic hook (trolley) has entered the China market, and its good safety system, overweight handling capacity (up to 40t), high-quality high-strength wear-resistant steel and fast operation have won unanimous praise from users. The invention has compact structure, can be folded on a truck, has light self-weight and full hydraulic power. This crane imitates the movement of human arms, does not use steel wire rope, has good safety, high precision and fast working speed when loading and unloading goods, and can work in dead corners that other cranes can't reach, such as bridge back. ?
Dutch environmental protection group has launched a multi-functional garbage vertical compression transfer station system. The system relies on the self-weight of garbage and top-down compaction to increase the density of garbage in the compactor, thus saving energy consumption; There is only a positioning mechanism between the compactor and the container, and no locking mechanism is needed. When the container is full of garbage, the leachate generated when the garbage is compressed will flow to the bottom of the container without flowing out of the container. The daily processing scale of the transfer station can range from tens of tons to thousands of tons, and the investment and operating costs are relatively low. This technology has been successfully used in Europe, South America and Oceania, and has entered the domestic market. For example, Shanghai Chongming Domestic Waste Transfer Station has adopted this system, and the operation effect is very good. ?
The construction waste treatment equipment developed by PetersonPacific Company occupies a small area and adopts a crawler-type structure, which can treat the grinding work of demolished construction waste, vegetation waste, construction waste and even logs where the grinding wheel mill can't pass, and will not be blocked like ordinary grinding machines. ?
Shanghai Hanover Trade Development Co., Ltd. (German agent) demonstrated Hako hand-propelled sweeper and driven vacuum sweeper. The hand-propelled sweeper is safe, dust-free and easy to operate, and it is convenient and effective to deal with garbage and sundries. Compared with domestic sweeper, its driving vacuum sweeper has compact and flexible structure and flat and beautiful appearance; It is extremely convenient to use standard trash cans to treat dumped garbage; Large suction, which can remove metal garbage such as sand and iron filings on the road surface; Its patented hinge positioning steering is very suitable for flexible turning on narrow roads. ?
Generally speaking, domestic manufacturers' rear-mounted garbage compression collection vehicles and solid garbage compression devices are mature, but the gap between road sweepers, sweepers and garbage transfer devices is obvious. ?
2 biochemical treatment equipment
The essence of organic waste treatment technology is composting technology, which is usually carried out under natural or artificial conditions, while organic waste treatment is to artificially add specific microorganisms before composting to accelerate the decomposition of organic waste. ?
At present, the treatment technology has made great progress. WBF microbial organic waste processor series and BF strain developed by Shanghai Baifu Bio-application Technology Co., Ltd. provide an effective and operable way for the reduction, harmlessness, resource control and treatment of domestic waste. Shanghai Huaxia Environmental Protection Ecological Technology Co., Ltd. has developed a waste recycling ecological residue-free treatment system (TBS), which uses high-tech diversified means to quickly treat all kinds of wastes and realize the reuse of surplus materials. The dry bio-gasification system developed by Tan Xiong Co., Ltd. can extract fermentation energy from organic wastes such as food residue and realize resource recovery. Generally speaking, the biochemical treatment of domestic waste has gradually developed to industrialization. ?
3 Incineration equipment?
Waste incineration equipment is mainly displayed by foreign companies. For example, SEGHERS' waste-to-energy technology is a different type of technology and device specially developed for various types of waste after 1970s. The device has reached the international advanced level in the aspects of complete waste combustion, energy utilization and flue gas purification technology. ? Amanasu? Based on the principle that the vibration effect of ions and microwaves can improve the temperature and ion density, the technology company developed a plasma value-added furnace to realize the melting process. After being treated by plasma furnace, toxic substances such as dioxins and CO2 are hardly discharged. ?
Generally speaking, after years of research and improvement, these foreign waste incineration equipment are of high level, complex technology and expensive equipment. Due to the high moisture content and low calorific value of garbage in China, many areas do not have the basic conditions for garbage incineration. Although the calorific value of garbage in several developed cities in China is gradually approaching the level of developed countries, it is worthy of serious consideration whether to introduce advanced incineration equipment from abroad.