According to the Master Plan of Hangzhou City, the Professional Plan of Environmental Sanitation of Hangzhou City and Hangzhou GuihanNo. 1 1 in 2005. 20 13308, the planning bureau suggested that the new waste incineration project in the west of Hangzhou should be located according to the adjustment of major project planning. According to the relevant requirements of Hangzhou Municipal Government and Hangzhou Chengtou Group, a new waste incineration power generation project will be built in the west. The project is jointly invested and constructed by Hangzhou Thermal Power Group Co., Ltd., Hangzhou Environment Group Co., Ltd. and Hangzhou Road and Bridge Co., Ltd. under Hangzhou Urban Construction Investment Group Co., Ltd. The newly established company entrusts units with relevant planning qualifications to prepare planning and site selection demonstration reports for specific projects. 20 13, 10 In June, Hangzhou Jiu Feng Environmental Energy Co., Ltd. was established by Hangzhou Chengtou Group, and Hangzhou Urban Planning and Design Institute was entrusted to carry out the site selection and site selection demonstration report of the waste incineration project in the west of Hangzhou. On the basis of the first site selection scheme, the planning scheme is compiled to clarify the nature and boundary of land use.
The basic principles of the architectural scheme are
(1) On the premise of meeting the overall layout and process flow of main production devices, the functional zoning shall be as clear as possible, and the layout of various pipelines shall be convenient and reasonable.
(2) Reasonably determine the vertical layout to save the engineering quantity.
(3) Pay attention to environmental protection, make full use of natural conditions, strengthen greening and create a modern enterprise atmosphere.
(4) Strictly implement the current national technical specifications on fire control, hygiene and safety.
According to local conditions, the layout should be reasonable. As the original total industrial land scale of this plot is 26 1.3 mu, in order to ensure the land needs, slope treatment and future supporting land needs. The total land area of the project is still 26 1.3 mu. See the following table for the construction land and related indicators of this project: main economic and technical indicators. Name unit 1 plant land area m2 104697 2 plant and structure area m2 3806 1 3 building density% 36.4 4 building area m2 93500 5 plot ratio. % 0.89 6 green area m2 184 17 7 green rate% 20.00 8 building height master plan M 45
Around the ecological balance and resource regeneration, the long-term garbage disposal mode is planned and determined, and the corresponding garbage collection, transportation and disposal system is established. Control the source of garbage, expand the comprehensive utilization rate, reduce the total production, reduce the pressure of garbage terminal treatment, and form a garbage disposal model in which sanitary landfill, safe incineration and comprehensive utilization complement each other. Therefore, garbage incineration is one of the main garbage disposal methods determined in the Master Plan.
In addition, the new Xiaoshan Waste Incineration Plant (Ploughshare Gold), the expansion of Hangzhou Green Energy Environmental Protection Power Plant (Binjiang) and the expansion of Yuhang Jinjiang Waste Incineration Plant, which are determined in the Master Plan, have been implemented at present. Due to the new construction of the Western Future Science and Technology City, Yuhang Jinjiang Waste Incineration Plant is facing relocation, which needs to be implemented in combination with this site selection plan. "
20 13 Revision of Hangzhou Master Plan (200 1-2020) (draft scheme) has clearly defined the location of the incineration plant.
Professional planning of environmental health
At present, there are Hangzhou Solid Waste Treatment Co., Ltd. (Hangzhou Tianziling Waste Treatment Plant), Xiaoshan District Sixth Reclamation Waste Treatment Plant, Yuhang Jinjiang Waste Incineration Plant, Hangzhou Nengda Green Energy Co., Ltd. (Qiaosi), Hangzhou Green Energy Environmental Protection Power Plant (Binjiang) and Hangzhou Xiaoshan Jinjiang Green Energy Co., Ltd.
According to the amount and direction of garbage disposal in Hangzhou, in order to extend the landfill life of Tianziling garbage disposal plant and vigorously promote garbage incineration, it is planned to build Tianziling garbage incineration plant (tentative name) around or inside Tianziling garbage disposal plant, relocate Hangzhou Nengda Green Energy Co., Ltd. (Qiaosi) to Jiangdong Industrial Park, expand Hangzhou Green Energy Environmental Protection Power Plant (Binjiang), and expand the garbage disposal plant in Xiaoshan District to 20 10. Gradually close the temporary garbage dumps in other towns and build them in stages.
The revision of Hangzhou Environmental Hygiene Professional Plan (2008-2020) is based on Hangzhou Urban Master Plan (200 1-2020). In terms of the layout of domestic waste treatment facilities, Hangzhou Environmental Sanitation Professional Planning Revision (2008-2020) newly proposed that it should focus on Tianziling Waste Treatment Plant or
In 20 13, the local revision (scheme draft) of the Environmental Sanitation Professional Planning Revision (2008-2020) adjusted the collection and transportation division, and made it clear that the site selection and processing capacity of Jiu Feng incineration plant were 3,000 tons. way
According to the service scope of the incineration plant (mainly serving Yuhang Group, Liangzhu Group, Xihu District and Gongshu District) and the geometric center of each district, five characteristic points are selected as the starting point for calculating the vehicle distance of each district, including the intersection of Wen Yi West Road and Dongxi Avenue of Yuhang Group, the intersection of Liangzhu Group 104 National Road and Liangxiang Road, the intersection of Dengyun Road and Yi Tong Road in Gongshu District, and the intersection of Fengtan Road and Pingshui Road on the north side of Xihu District.
At present, the surrounding bus lines are mainly laid along provincial highway 02. The bus stops near the project site are Shangkengwu Station (about 2km away from the project site) and bus line 1(475: Wangjiabu-Yuhang). The bus line 598 from the original provincial highway 02 to Lin 'an has been stopped, and the surrounding bus service level is poor. It is planned to extend BRT Line 4 to Zhongtai Bus Station in the long term, so as to facilitate the staff in this block to transfer to BRT and conventional bus to enter the main city of Hangzhou.
After the completion of this project, according to the reasonable traffic organization, the impact of the construction and operation of the site on the surrounding road traffic facilities is within an acceptable range; At present, this project is still in the stage of site selection demonstration, so the parking configuration and construction requirements of the final project itself need to be implemented according to the construction plan of the next stage.
supply water
Yuhang District Water Supply Professional Planning (Revision) is located in Yuhang Group Water Supply System in Yuhang District. The water supply planning of this system is mainly solved by transferring from Hangzhou, and the insufficient part is solved by transferring from Renhe Waterworks and Jingshan Waterworks. In order to ensure the safety of water supply, the 1 DN 1000 pipeline has been built in Provincial Highway 02, connecting the water supply system of Yuhang Group with the water department of Lin 'an, which can be used for the waste incineration project in Jiu Feng.
Due to the floor height difference, the height difference between the access point of provincial highway 02 and this location is nearly 70 meters. In order to ensure the safety of water supply, two new lifting pumping stations need to be built midway, and the pumping station area is temporarily controlled at 600 square meters. The internal water supply pipe network forms a pipeline layout form combining ring and branch to ensure the safety of water supply.
drainage
The annual domestic displacement of this project is: 6.935x103m3; ; The annual production displacement is 63.8× 105m3. The sewage and wastewater discharged by this project will be collected through the pipe network and sent to the landfill leachate treatment station for treatment, and all of them will be reused after reaching the reuse standard. In order to make rational use of water resources and save water, part of the auxiliary cooling water backwater of boilers and steam turbines in this project is used as circulating water supplementary water, and the other part is used as boiler blowdown cooling water, which is pumped to the circulating water backwater system by reuse pump. Sewage discharged from chemical water station and concentrated wastewater discharged from landfill leachate treatment station are used in water consumption points with low water quality requirements, such as cold slag, ash humidification and fly ash solidification; Sewage from circulating water is used for ground washing; The landfill leachate produced by this project can be reused after being treated to meet the water quality standard, and used as supplementary water for circulating water. In this way, the reuse of water is realized and the reuse rate of water is improved. But also realize zero discharge of waste water.
After being organized, the rainwater is discharged into the rainwater pipe network in the nearby area, and finally discharged into Dongtiaoxi through the flood discharge ditch.
force
The total installed capacity of this project is 60MW, and it is equipped with two N30-3.80/395 medium-pressure condensing steam turbines and two QF-30 generators. The average annual total power generation is 3.761×108 kw h, the average annual on-grid electricity consumption is about 3.159×108 kw h, and the self-use electricity consumption is 0.602×108 kw h. ..
The installed capacity of this project is 2 30MW generator sets, the generator outlet voltage is 10.5kV, and the generator I and II buses are 10kV. The voltage is boosted to 1 10kV system by two main transformers with a capacity of 40MVA. 1 10kV system adopts single bus sectional wiring, and two 1 10kV lines are connected to the superior substation.
The voltage levels of AC motors in this project are AC 10kV and AC380V, and the voltage levels of auxiliary power are 10kV and 380/220V. 10kV is an ungrounded system. The connection mode of 380V system adopts TN-C-S system.
Except for a few directly buried cables, all cables in the plant are laid along the cable trench. Cables are laid in layers in the cable trench, power cables are arranged in the upper layer and control cables are arranged in the lower layer.
Cables in the workshop are laid in cable trenches and cable trays, and some of them are laid through steel pipes.
Power cables and control cables are flame retardant cables. And take corresponding fire prevention measures. waste gas
At the same time of reliable and stable treatment, we should strictly protect the environment, reduce the emission concentration of pollutants, and appropriately raise the emission standards of some indicators on the basis of meeting the international Pollution Control Standards for Domestic Waste Incineration. See the table below for the emission indicators of flue gas pollutants to be adopted in this project.
National standard of pollutant name unit number
GBL 8485–20065438+0 National Standard
Gbl8485-Exposure Draft EU 2000/76/EC Daily Average Hours of Guaranteed Value of this Project
Average half an hour a day.
100% half-hour daily average
Average value 1 cigarette mg/Nm3 80 20 (measured average value) 10 30 20 (measured average value) 2hcl mg/nm375506010603 hfmg/nm3-1414sox. 00 50 200 50 100 5 nitroxide mg/Nm38+0 12 dioxin (teq) ngteq/nm3 1 .00.10/Note:/kloc-0.
2) The maximum smoke blackness time shall not exceed 5min in any1h..
3) HCl, SOx, nitrogen oxides and CO in GB18485-20065438+0 are hourly average values, while other pollutants are measured average values.
4) Heavy metals such as Hg, Cd+Tl, Pb+Cr and dioxins in EU 2000/76/EC are the average values.
In order to meet the above emission standards, the flue gas purification process mainly controls acid gases (HCl, HF, SOX), nitrogen oxides, particulate matter, organic matter and heavy metals. According to the results of current research and engineering practice, the combined process of acid gas removal, particulate matter capture, nitrogen oxide removal and organic matter and heavy metals removal including dioxins should be adopted.
waste residue
At present, the waste residue treatment of this project is treated by comprehensive utilization, and the main production equipment includes: two sets of asphalt mixing production lines, one set of cement stabilized macadam production line, one set of waste asphalt mixture recovery production line and one set of waste incineration slag aggregate production line.
flying ash
At present, according to the garbage incineration capacity of the incineration plant of 3,000 t/d, the output of fly ash after incineration is 83T/d, and its disposal method is to send it to the cement kiln for centralized and comprehensive disposal after washing, which can effectively prevent the secondary pollution of fly ash. Finally, the environmental protection department will carry out comprehensive disposal according to the relevant requirements of national provinces and cities.