hz宛溪河流域水环境综合整治工程打捆项目可研报告.doc
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1、Gay is now a provincial key construction project of aluminum Ltd-province with an annual output of 50,000 tons of technical innovation project of environmental protection and energy saving of electrolytic aluminum project manager. In this technological transformation projects, he has overall respons
2、ibility for the day-to-day affairs of the project. In order to ensure that southern companys control the scale of investment, strengthen field management, pay special attention to project progress, and ensure a successful operation, the overall goal. He and Engineering Department under the leadershi
3、p of all the staff in the companys technical command, on the difficulties and to overcome technical difficulties in the process, work hard, have made outstanding achievements, mainly reflected in the following aspects: first, careful organization and management achieved remarkable results. Technical
4、 innovation project of the year, started and completed a series of bids and completed to date, from production engineering to put into production after nearly a year, has achieved very significant results. A project first 56 slots from dismantling the old slot just 168 days, civil engineering, insta
5、llation, commissioning, guarantee engineering quality under the premise, on the production side transformation under difficult conditions, created the national industrys fastest speeds. II 32 large prebaked electrolytic cell on November 7 has been installed, marks has an annual production capacity o
6、f 50,000 tons of electrolytic aluminum production capacity of aluminum. Entire project almost 8 months earlier than planned, achieved the goal of production transformation benefits that year, created favorable conditions for aluminum through South. Second, effectively control the investment. Project
7、 is subject to a scientific approach to bidding, bidding to make savings of 20 million Yuan, in the implementation process of the project, every domestic prices of steel, cement and other building materials, the old buildings on the base encountered great difficulties in dealing with significant inc
8、rease in the volume of civil engineering, but through rationalization and optimization, project control in fixed investment of 350 million Yuan. Third, environmental energy-saving effect of the project. Project investment of nearly 30 million Yuan, using large prebake technology and aluminum oxide d
9、ense phase and hyper dense phase conveying technology, fluoride and other harmful gases purification efficiency of up to 98%. Compared with Soderberg cell before the modification, power consumption can be reduced by 1500 tons of electrolytic aluminum, and project environmental protection and energy
10、saving effect is obvious. Four are in a relatively short period of time to the normal production. After four months of efforts, a project has put into operation all the 54 240KA large cell into regular production, stable current channel conditions and all the economic indicators are good, current ef
11、ficiency in October had reached 93%, is close to and reach the domestic advanced level. In the case of production half of the cell, this effect can be achieved and better level in the industry. 50,000 tons of electrolytic modification process, from preliminary study to equipment selection, cost cont
12、rol, project progress, quality control and coordination among the various sub-projects and various professional, technical command under the correct leadership, both from an overall perspective, emphasis on integrity, and earnestly implement the relevant laws and regulations, strictly act according
13、to the contract. He tried to learn relevant knowledge, good style of business, operational and organizational coordination ability, project efficiency, quality and safety assurance system in place, with all units involved with the coordination and good .Selection.ParagraphFormat.LineSpacingLinesToPo
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17、aaaaaaaaaaaaaaahF-1 城市概述1.1 自然条件1.1.1 地理区位宣城市位于长江以南,黄山以北,地处皖南山区余脉与长江中下游冲积平原结合地带,皖东南门户。市域总面积为12340平方公里,地跨东经1175811940和北纬3017-3119。东邻江苏和浙江的溧阳市、宜兴市、湖州市和杭州市,南接黄山市,西滨芜湖市,北界马鞍山市,全市总人口约274.2万人,人口密度为222.8人/平方公里。市区东距杭州240公里,南距黄山市198公里,北距南京194公里,芜湖76公里,距省会合肥213公里。市区现辖七个街道办事处(鳌峰、济川、澄江、西林、敬亭山、双桥和飞彩),建成区面积35.85平
18、方公里,市区总人口35.5万人,宣城市位于我国经济最归达的长江三角洲影响第二圈人,接受沪杭经济辐射强烈。同时与皖江经济带最重要的中心城市芜湖仅距76公里。宣城市市区是皖赣铁路与宣杭铁路的交汇点,同时又是两条高速公路318国道和合杭高速的对接城市。芜湖长江大桥和318高速公路的建设使宣城从公路、铁路北至合肥,东至杭州,南至黄山均有便捷通路。水阳江的水运可直达芜湖通往长江黄金水道。宣城市是沪、浙地区通往皖南旅游线与皖西皖东南旅游线的交叉点上。随着旅游事业的发展,对宣城市经济发展的城乡建设也将有更强的带动作用。1.1.2 地势地貌宣城市现代地貌格局基本上受地质构造控制,地势南高北低,地貌复杂多样。大
19、致可分为山地、丘陵、山间盆地、岗地、平原等五种类型。南部山地、丘陵和盆谷交错,海拔高程一般2001000 米;中部丘陵岗冲起伏,高程一般15100 米;北部除一部分破碎的丘陵外,绝大部分为广袤的平原和星罗棋布的河湖港汊,圩区地面高程一般为712 米,其中郎川河沿岸部分圩区在12 米以上,宣城市区金宝圩心最低处仅有5 米左右。宣城市规划区范围内总的地势是西南高、东北低,地形复杂且起伏不平。城区地面高程一般在1276m(吴淞高程系,下同),最高达88m。市区西北部2km有敬亭山,主峰海拔317m;西南部为丘陵地带,岗峦起伏,沟冲交错,平均地形坡度在610%,平均海拔2276m;东南部为水阳江冲击而
20、成的平畈区,水网密布,地势低洼,地面高程大都在设计洪水位以下。1.1.3 水文地质宣城市水资源包括河川径流、地下水和太平湖过境径流三个部分,境内河流分属长江、钱塘江流域,包括水阳江、青弋江、太湖、新安江等水系。全市年均径流量93.16亿立方米,青弋江、水阳江贯穿本市流入长江。青弋江在区内的主要支流有:徽水、孤峰河、琴溪河、包合河、茂林河、周寒河等。水阳江主要支流有西津河、东津河、中津河、华阳河、郎川河、宛溪河等。城区内主要河流有水阳江及其一级支流宛溪河,二级支流板桥河、桐梓岗河、青溪河、梅溪河、泥河、道叉河、白马河及官塘河;青弋江二级支流长桥河。水阳江属长江水系,发源于皖浙交界的天目山,上游由
21、东津河、中津河和西津河三条支流在河沥溪汇合(汇口以上流域面积2580km2),汇口以下始称水阳江。流经汪溪、水东、孙家埠、宣城市区东郊,左岸汇华阳河(流域面积286km2)、宛溪河(流域面积330km2),右岸汇郎川河(流域面积2526km2)等支流,过新河庄、水阳镇、花津等地,经南漪湖、固城湖和丹阳湖调蓄后由当涂太平口注入长江,流域面积10305km2。水阳江干流在东郊杨家嘴处(宣城水文站下游2km处)右岸有双桥河分流直接入南漪湖,洪水期的分流比约占宣城水文站以上干流的25%。依据宣城市环境保护规划,水阳江属地表类水区域,其主要水文参数如下:年平均流量 80.4m3/s年最大月平均流量 48
22、9m3/s年最小月平均流量 1.36m3/s常年水位 8.2-8.3m最高水位 17.46m(水文站,1996年6月30日)最低水位 5.8m历史最大洪峰流量 7700m3/s(1996年6月30日)最大流速 3.4m/s最小流量 0m3/s(有六年出现过断流,时间最长达34天,1978年8月8日-9月11日)港口湾水库建成后,50年一遇设计洪水位:水阳江段北门 14.88m东溪桥 15.48m水文站 16.58m设计下泄流量 200m3/s宛溪河为水阳江左岸的一级支流,发源于宣城市东南部周王和新田交界的青峰山,自城区西南穿城而过,于北门三汊河处注入水阳江,流域面积330km2。主干河道(高速
23、北门)长5.7km,其干流在响山以上有板桥河、桐梓岗河和青溪河3条支流(合计集水面积291.8km2)汇于响山至夏渡镇以南的开阔地段;响山以下又有左侧的梅溪河、道汊河,右侧的泥河相继汇入后至城区北门入水阳江。青溪河、梅溪河、道叉河和泥河为主城区的四条小溪流,均属于水阳江的二级支流,有的已成为纳污河道,淤积也很严重。青溪河由五条小支流汇流而成,汇流面积86.5km2,从响山南面汇入宛溪河。梅溪河发源于敬亭山,汇水面积9.05km2,于南门大桥汇入宛溪河。道叉河发源于敬亭山,汇水面积8.38km2,于济川桥北汇入宛溪河,其洪峰流量直接影响市区西北部。泥河汇集九州大道以东城市污水和农田径流,流域面积
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