Environmental Friendly Urban Waste
/Life Garbage Recycling Pyrolysis Machine
1. The background and significance of the development of domestic garbage disposal projects
Domestic garbage refers to solid waste generated in activities that are provided in daily life or for daily life, as well as solid waste that is regarded as domestic garbage by laws and administrative regulations. Urban domestic waste disposal is an important part of urban environmental sanitation. It directly serves the creation of a clean, beautiful and comfortable environment, which is beneficial to people's physical and mental health, urban economic development and spiritual civilization construction. It is also environmental protection and social sustainability. Important content of development.
With the improvement of people's living standards, environmental awareness has gradually increased, and the requirements for the harmless treatment of domestic garbage have become stricter. Before 1990, the national municipal solid waste treatment rate was less than 2%. With the development of the economy, the level of urban domestic waste treatment continued to increase. In 1994, there were 99.52 million tons of municipal solid waste in the country, and there were 609 urban domestic garbage treatment plants (fields). The urban domestic garbage disposal rate was 35.8%. In 2000, there were 118 million tons of municipal solid waste in the country, and there were 660 domestic garbage treatment plants (fields). The garbage disposal capacity reached 232,200 tons/day, and the harmless treatment rate of domestic garbage reached 60.23%. During the period from 1986 to 2000, the average annual growth rate of urban domestic garbage removal was 6.5%, and the growth of urban domestic waste was basically synchronized with urban population growth. Among them, 95% of urban domestic waste was land-filled.
In recent years, the achievements and progress in the treatment of municipal solid waste in China are obvious, especially the advanced waste treatment technology has gradually been applied. For example, in many landfills recently built, in order to improve the anti-seepage level of domestic waste landfills, high-density polyethylene film is used as anti-seepage material for horizontal anti-seepage; to improve the efficiency of landfill operations, some large-scale The landfill uses a dedicated garbage compactor, and so on.
With continuous efforts, Shangqiu Zhongqing Company has developed a cracking equipment specially designed for the treatment of domestic garbage. After being processed by the equipment, it can obtain about 20% of oil profit from domestic garbage, and in the process of treatment, the domestic garbage is sterilized after high temperature to ensure environmental protection and health. Before introducing our processing equipment, we will analyze the current common treatment methods.
2. Common treatment methods for domestic garbage
a. Landfill treatment
Landfill is an effective method for massaging urban domestic waste, and it is also the final treatment method for all waste treatment process residues. At present, direct landfill method is widely used in China. The so-called direct landfill method is to fill the prepared pits with compacted materials to make biological, physical and chemical changes, and to decompose organic matter to achieve the purpose of reduction and harmlessness. Most of the garbage in many cities in China is still open-air stacked without any protective measures. Every garbage dump has become a source of pollution. Mosquitoes are breeding, mice are plagued, and odors are raging. A large amount of waste water seeps into the ground from the surface, causing serious pollution to the urban environment and groundwater sources. Shenyang City once drilled and sampled 10 of the 35 landfills to analyze the waste fault samples and groundwater quality. The analysis found that:
a. The groundwater quality deteriorated, the pollution was serious, the water was turbid and smelly, and the anaerobic large intestine was detected in the water. Bacillus;
b. toxic and harmful substances were detected in the waste fault samples. Every day, 10,000 tons of garbage is transported to the seaside in the suburbs of Shanghai. A garbage mountain with a height of 20 to 30 meters rises and rises, causing serious pollution to the surrounding environment. The landfill treatment method is one of the most common waste treatment methods. Its biggest feature is low treatment cost and simple method, but it is easy to cause secondary pollution of groundwater resources. As the amount of urban waste increases, the number of suitable landfill sites close to the city is becoming less and less. Opening up long-distance landfill sites has greatly increased the cost of garbage discharge, which is unaffordable
b. Incineration treatment
There are two common types of incineration methods, one is open burning. As shown in FIG. There is no cost to this method. In the vast rural areas or in slightly remote places, even large-scale garbage dumping sites have many methods of using such open burning. However, the pollution is particularly serious, and the cost of plastic in the garbage will also generate a large amount of dioxins when burned in the open air, which seriously affects human health. Moreover, it will cause great damage to the land at the accumulation site when incinerated.
Another application that is increasingly used is to place waste in a high-temperature furnace, a method in which the combustible components are fully oxidized, and the heat generated is used for power generation and heating. The advantage of incineration treatment is that the reduction effect is good (the residue volume after incineration is reduced by more than 90%, the weight is reduced by more than 80%), and the treatment is thorough. However, the construction and production costs of incineration plants are extremely expensive. In most cases, the value of the electrical energy generated by these equipments is much lower than the expected sales, leaving the local government with huge economic losses. Since the garbage contains certain metals, incineration is highly toxic and causes secondary environmental hazards. Incineration requires that the calorific value of the waste be greater than 3.35 MJ/kg. Otherwise, a combustion improver must be added, which will increase the operating cost to an unacceptable level in the general city.
c.Composting treatment
The domestic garbage is piled up in piles, stored at 70 ° C for storage and fermentation, and the organic matter is decomposed into inorganic nutrients by the ability of microorganisms to be decomposed in the garbage. After composting, the domestic garbage becomes a hygienic, tasteless humus. It not only solves the way out of garbage, but also achieves the goal of re-recycling. However, the amount of compost is large and the nutrient content is low. The long-term use is likely to cause soil compaction and groundwater quality deterioration. Therefore, the scale of composting is not too large. Regardless of landfill, incineration or composting of municipal solid waste, pretreatment must be carried out. The most common process of pretreatment is garbage crushing. The garbage is crushed, the volume can be reduced for landfill, the burning can be made more complete, and the compost can make the garbage more quickly. However, the composting treatment cycle is long and covers a large area. It is necessary to classify the garbage in advance and pre-separate the indecomposable components: rubber, metal, glass, and the like.
3. Our Simple Treatement Introduction
In order to ensure the timely, efficient and harmless disposal of domestic garbage, after scientific and technological research, our company has designed and launched a project of resource-based and harmless treatment of domestic garbage after simple extrusion and dehydration treatment. The thorough disposal of garbage not only saves the cost of transportation and landfill, but also turns waste into treasure and creates economic benefits.
4. Composition of Solution
a. Double shredding machine
b. Drying machine for option:
c. packing machine:
5. Main Parts of Environmental Friendly Urban Waste/Life Garbage Recycling Pyrolysis Machine
6. Operation Process:
| Process Time of 10 tons Pyrolysis Plant |
| Feeding |
1~2h |
| Heating |
9~10h |
| Cooling |
3~4h |
| Discharging |
1~2h |
| Steel Pulling Out |
20minutes |
- General introduction: The cut tires or tire bundles or whole tires (with less capacity) or plastic bundles feed into reactor directly, then close tightly the reactor door, and begin heating.
- When the gas separator temperature rise up to about 100degrees C, the oil gas will generate and flow through the gas separator. The heavier content falls down and back to reactor, the light part go up to the condensers and turned into liquid oil stored in oil tanks.
- The uncondensed sync gas will be purified to remove acid part and the odor, then back to furnace burned as fuel to heat reactor.
- When whole process finished, cooled down the reactor to about 80 degrees C and open the discharger, begin discharging carbon black.
- Sync Gas:The sync gas generated about 3~8% totally according to the oil water content, it is pollution gas, but with huge heating value, cannot be emitted directly. We adopt gas purification and recycling technology, all such gas will be purified first to remove the Sulphur and Chlorine content, then recycled to the burning room burned as fuel to save operation cost as well as prevent gas pollution. If buyer need, also can collected and pressed such gas into tank to generate electricity or sold to market.
- The principle we use is high temperature distillation, we suggest the normal temperature not more than 360ºC, and the pressure in the whole process is not higher than 0.02 MPa. We also use gas purifying system in our new design, after purifying, the emissions is cleaner, which is more environment friendly. In a word, it is safe, energy-saving, environment friendly and easy to operate.
7. Outstanding Features of our Environmental Friendly Urban Waste/Life Garbage Recycling Pyrolysis Machine
- Carbon black collecting work together with the discharging system to ensure 100% environmentally clean (this system can directly connect together with carbon black processing line)
- The smoke scrubbers utilize chemical method to remove acid content on the basis of Water film and spraying types to ensure the emission meet European Standard (We once sold this technology to Jinpeng). If your fuel with a lot of dust, we can supply bag filter removal to ensure the emission standard.
- Sync gas purification system for desulfurization before burning as fuel. This can reduce reactor corrosion and air pollution, extending reactor life.
- Add the latest auxiliary technology and equipment: oil purification system, including oil-water separating, oil deacidification and oil filter to ensure oil with good color and lower sulfur content without special high temperature distillation line, which is first in the industry;
- Special naturally fast-cooling technology: to achieve the purpose of rapid cooling without any energy consumption, the natural cooling time reduced 30%, it is first in the industry
- Extra gas/sync gas usage: connect with special burning room and scrubber (as well as the steam electricity generator), to meet NO WASTE GENERATED AGAIN during whole operation.
- Try our best to use screws set, to make sure the installation in buyer's site easier and simpler, saving time and labors.
8. Sales after service:
a. We have professional service staff who are responsible for your plants besides our sales managers and technicians.
b. Engineers available to go overseas for plant installation.
c. Quality warranty period: one year for the main reactor of pyrolysis machines and lifetime maintenance for completing machines.
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