石膏的综合利用
石灰石──石膏湿法脱硫副产品为脱硫石膏，利用途径很广泛，在不少领域如水泥、建材行业、建筑以及农业等广泛使用。
在水泥行业，石膏可以作为水泥的掺和料，可起到缓凝作用。目前，水泥中石膏掺和料大多来自天然石膏矿，开采天然石膏
矿耗用了国家大量资源。如果采用脱硫石膏替代天然石膏，只要控制脱硫石膏中有害杂质含量、降低脱硫石膏表面水分、或
控制石膏造粒等，脱硫石膏就可以替代天然石膏广泛应用于水泥行业。
中国硅酸盐学会曾对珞璜电厂的脱硫石膏进行全面性能验证试验，试验结果证明脱硫石膏用作水泥缓凝剂完全可行，脱硫石
膏的各项性能指标均可以达到有关标准的要求，有些指标甚至还优于天然石膏，所以，脱硫石膏完全可以替代天然石膏。另
外这种工艺技术简单、易于实现。因此在水泥行业，脱硫石膏将会广泛地得到使用。
建筑材料，尤其在新型建筑材料中，石膏板及石膏制品占有特殊地位。国内许多石膏板厂就用脱硫石膏作原料。
在建筑行业，脱硫石膏也有巨大综合利用的市场。另外，在生产化肥硫酸钾方面，脱硫石膏也会得到广泛使用。
当地有神华集团府谷天桥水泥有限责任公司、府谷水泥厂等水泥企业需要石膏作为水泥的掺和料，业主应根据当地石膏综合
利用的情况，与有关单位签订利用协议。
脱硫石膏首先立足于综合利用，以保护环境，节约土地，避免资源浪费，并可产生一定的经济效益。本工程采用干灰场，无
法采用石膏水力抛弃处理方案，本工程脱硫石膏全部脱水后，运往综合利用用户。脱硫石膏无法综合利用时，石膏脱水后由
输送皮带运至电厂干灰场碾压贮存。
10.0 劳动安全
11.0 职业卫生
12.0 资源利用
12.1 能源利用（热机汇总）
12.2 土地利用
本工程系榆林煤化工项目自备电站，土地利用由工业园区总平面布置统一考虑，不再预留扩建条件。电站施工期间所需用地
也由园区建设统一调配。
12.3 Water resource utilization
12.3.1 Water source
The karst water and Tugou reservoir water, which is located upstream of Tuiwei river in Shenmu County, will
be adopted as the water source of the power plant.
12.3.2 Water-saving measures
In this project, water consumption includes: make-up water for boiler, industrial water, domestic water,
firefighting water, moistening water for dry ash, spray water for ashpond, water used for coal handing and
dedusting and water loss in the process of water treatment and so on. The sewer of this project will be
discharged to corresponding processing system of the main project, and will be reused after unified treatment
in the main project.
Following water-saving measures will be adopted to improve water resource reutilization.
The use of air cooling system for the cooling of main turbine, which reduce water consumption of fresh water
drastically.
The use of pneumatic ash handling and mechanical slag removal system, of which water–saving effect is
considerable.
According to water demands for water consumption and water quanlity of processing system, combing water
source situation, studing water balance of water supply and drainage and water reuse, design proper water
supply system and sewer processing system to save water, and the detail measures are as follows:
Treated industrial wastewater will be used as washing water and dedusting water for coal handling, spray
water for coal yard, processing water for preparation of limestone slurry in Desulfurization Island and
moistening water for ash slurry handling.
Making the most of industrial wastewater to reduce water consumption of fresh water.
The use of wind cooling for boiler slag removal, which reduces water consumption.
Sanitary waste of the power plant will be collected through the sewer system, and then will be reused after
treated up to par in the main project.
Network system for collecting of industrial wastewater will be set. the collected industrial wastewater will
be delivered to the main project and will be reused after treated.
Washing water for coal handling system will be reused in this system after treated in the main project.
Water metering facility will be installed for the inlet main pipe and each chief branch pipe to control water
consumption index strictly. Flow-limiting facility will be installed for the inlet/outlet main pipe of
Auxiliary machine cooling tower to improve the economical efficiency of make-up water quantity of Auxiliary
machine cooling tower and moderate efficiency of drainage quantity. Flow-limiting facility will be installed
for other big water consumer to improve water consumption efficiency and reduce water loss.
Water management will be an important factor for the evaluation and management of each workshop in the
operation management of the power plant. Water consumption index will be regarded as an importand evaluation
index to enhance the management and moniter in the operation.
12.3.3 water-saving effect
According to <<code for design of big and medium size fossil fuel power plants>>, design water consumption
index should be not more than 0.12m3/s.GW for power plant of which the unit capacity is not less than 300MW
and for which air cooling system is adopted.
Water consumption in summer in straight condensing condition of this project is 257m3/h (0.119m3/s.GW),
0.117m3/s.GW of which will come from urban reclaimed water, and water consumption index of fresh water is
only 0.002m3/s.GW, which has a dramatic water-saving effect.
12.4 建筑材料利用
12.4.1外围护结构
建筑热工设计应符合国家节约能源的方针,使设计与气候条件相适应,在建筑布置中尽量注意建筑朝向,节约建筑采暖和空调能
耗,改善并保证室内热环境质量.汽机房外墙零米层窗台以下采用370厚多孔砖墙，窗台以上采用彩色复合保温压型钢板；窗户
采用单框中空玻璃塑钢窗；锅炉房采用紧身封闭布置。
12.4.2 汽机房、锅炉房及煤仓间在零米和转运层、输煤皮带层及要求较高的房间采用耐磨地面或全瓷地砖，楼梯平台及踏步
采用防滑瓷砖面层。
12.4.3卫生间等采用防滑耐磨地砖。
12.4.4集控室采用全瓷抛光防滑地砖。
12.4.5 集控室、电子设备间等要求较高的房间设金属板吊顶。
12.4.6 屋面采用防水卷材、防水涂料，保温层采用挤塑聚苯乙烯（XPS）、憎水珍珠岩板。
12.4.7集控楼外墙面装饰：外墙涂料。
12.4.8 集控室内墙采用装饰金属板，其余内墙采用中级内墙涂料。
12.4.9主厂房设备进出及检修用的大门采用钢质保温电动或手动折叠门。
13.0 ECONOMIZING RESOURCES
13.1 Criterion of Economizing Resources
The standard and criterion of saving energy for this project is as following:
The National Development and Innovation Committee <Notice about Programming and Construction of Coal-fired
Power Plant>（Development and Innovation Energy No【864】）
The No 40 prescript of The National Development and Innovation Committee<The Adjustment of Industry Structure
Instruct Catalog (2005 year volume)>
Thermal Power Plant Design technique manual (DL5000)
Designing Criterion of Energy Saving for Public Building (GB50189-2005)
Designing criterion of energy saving in other countries and vocation
13.2 Economizing resources measures in this project
13.2.1 Economizing resources when choosing main and accessory equipment
Choosing less energy consumption turbine, high-efficiency boiler, and generator ahead. The maximum continuous
output of generator should be correspondence with turbine and boiler, the turbine adopts advance steam gland
technique.
Strictly calculation will be carried out when choosing the accessory equipment; the equipments are chosen
under the criterion, in case of choosing larger equipment to make sure of safely, reasonable, efficient
operation.
Choosing eligible energy saving product, it is priority to choose low-energy consumption, safety-operating,
mature and energy saving electric product. Never use low-grade product.
New type and low wastage generator transformer is used to decrease wasting. Energy saving generator
transformer compared with normal generator transformer can decrease wasting for 10~20%, so it is better to
choose Energy saving generator transformer.
Choose Y type series motor to improve efficiency of motor.
It is better to choose well-sealed idler, which is unmaintenanced, little resistance, long-life, small
driving power.
Water ring mechanical vacuum pump is highly-efficiency, low energy consumption, and reliable operation. So it
is the better choose.
The motor of condensate pump should be frequency conversion and governing in order to saving energy.
Adopt air cooling dry matter system which is water and energy saving.
Draft air fan and induced draft fan should choose rotating vane/static vane changeable axis flow fan, because
this fan has wider high efficiency operation range, it is suitable for off-design, it has better economy and
energy saving.
The power of driven motors of accessory which is more than 200kW should adopt high pressure motor, in order
to reduce start-up current and circuitry wastage.
13.0 节能分析
14.0 人力资源配置
15 IMPLEMENTATION CONDITION AND MILESTONE SCHEDULE FOR THE PROJECT
15.1 Implemention Condition of The Power Plant
1) Construction yard
Construction production area and construction living area are considered by the Coal Chemistry Project.
Construction production area is about 35 hm2 and construction living area is about 12 hm2.
2) Transport for the major equipment
At first, the major equipment would be transported into railway loading area of the Coal Chemistry Project by
railway, and then transited into the power station, estimating which will cost 10 million Yuan.
3) Construction ability
Construction electricity：Peak consumption is 5600kw, considered by the Coal Chemistry Project.
Construction water：Peak consumption is 600t/h, considered by the Coal Chemistry Project.
Construction communication：It will be considered by the Coal Chemistry Project.
15.2 Milestone schedule for the project
According to [2002]849 “Design guide of construction organization for fossil fuel power plants”, and
considering the specialty of the power station, milestone schedule for the project is arranged:
Feasibility study Feb.2009 to May.2009 3 months
Feasibility study censor Jun.2009 1 month
Primary survey Jul.2009 to Oct.2006 4 months
Primary design Nov.2009 to Feb.2010 4 months
Primary design censor Mar.2010 1 month
Detail survey Apr.2010 to Jun.2010 3 months
Construction layout Jul.2010 to Dec.2010 6 months
Detail design Jan.2011 to Apr.2012 16 months
Construction prepare May.2012 to Oct.2012 6 months
Plant Construction of the
Main power building to
#1 unit goes into operation Nov.2012 to Apr.2015 30 months
#1 unit goes into operation
to #2 unit goes into operation May.2015 to Jul.2015 3 months
#3 unit goes into operation
to #4 unit goes into operation Aug.2015 to Oct.2015 3 months
#5 unit goes into operation Nov.2015 to Dec.2015 2 months
16.0 投资估算及财务分析（技经）
17.0 风险分析
18.0 技经与社会影响分析
19.0 结论与建议（设总汇总）
19.2.10 Thermal efficiency for total plant
Thermal efficiency indices sum table
No Description Unit Heating period Total per year Remark
1 Annual utility hour h 8000 8000
2 Annual max thermal load utility hour h 8000 8000
3 10MPa designed extraction steam t/h 1437
4.2MPadesigned extraction steam t/h 365
1.7MPadesigned extraction steam t/h 176
Annual 10MPa extraction steam x104t/a 1149.6
Annual 4.2MPa extraction steam x104t/a 52.5
Annual 1.7MPa extraction steam x104t/a 6.4
4 heat application heat consumption GJ/h 6689
Annual heat application heat consumption x104GJ/a 5351
5 Heat output GJ/h 6689 Internal loss2%
Annual heat output x104GJ/a 5352
6 heat capacity power ％ 100
7 heat capacity standard coal rate kg/GJ 36.9
heat capacity standard coal consumption t/h 246.6
Annual heat capacity standard coal consumption x104t/a 197.3
8 Gross heat input GJ/h 12367
Annual gross heat input x104GJ/a 9894
9 Generation heat consumption GJ/h 5678
Annual generation heat consumption x104GJ/a 4542
10 Generation power MW 632
Annual energy output x104MW*h/a 505.6
11 generation thermal efficiency ％ 44.3
Generation standard coal consumption g/kw*h 277.6
Annual generation standard coal consumption x104t/a 140.4
12 thermoelectric compare ％ 294.0
13 Thermal efficiency of plant ％ 72.5
14 Annual total thermal capacity x104GJ/a 5352.0
15 Annual gross generation x104MW*h/a 505.6
16 Annual total standard coal
consumption x104t/a 337.6
note: heat output is not considered the loss of heat distribution network.
19.2.11 设计发供电标准煤耗
19.2.12 water consumption index for each GW
Water consumption in summer in straight condensing condition of this project is 273.1m3/h (0.120m3/s.GW)