CN109657992A - 一种煤矿矿井水利用方法 - Google Patents
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Abstract
本发明公开了一种煤矿矿井水利用方法，根据矿井水涌水量、矿井水处理损失水量、有毒、有害不可利用的水量、矿区内的实际利用量、矿区外的实际利用量计算出矿井水资源开发利用潜力值；依据该潜力值，对集中处理后水质达标的各矿区排放的矿井水经由调节池调蓄，通过管网输送至工业园区、矿区居民区、矿区生态园区，形成矿井水的再利用。本发明可以根据各地区矿井水资源情况及利用的基础条件合理规划，极大地提高矿井水的利用率。
Description
技术领域
本发明涉及一种废水的再利用方法，尤其涉及一种煤矿矿井水利用方法。
背景技术
随着资源开采产业的持续发展，水资源不足已成为矿区经济发展的重要制约因素，矿井水利用是缓解矿区缺水的重要措施。
煤矿在开采过程中会产生大量的矿井水，直接排放不仅浪费宝贵的水资源，而且会对环境造成严重污染。现阶段，对矿井水资源的有关概念都没有厘清，基础数据不全，矿井水中可利用水量无法估算，难以判断其开发利用潜力，使煤矿矿井水资源无法得到有效利用。此外，因目前尚未提出因地制宜，即满足各区域自身发展和基础条件的矿井水利用方法，导致矿井水的利用发展区域不平衡。
发明内容
发明目的：本发明提供了一种利用煤矿矿井水的方法，使用该方法可以根据各区域自身发展和基础条件，极大地提高矿井水的利用率。
技术方案：本发明述的一种煤矿矿井水利用方法，包括步骤：
(1)获取矿井水涌水量Winf，计算矿井水资源量W1如下公式所示：
W1＝Winf，
其中，所述矿井水涌水量Winf是指从煤矿开拓到回采过程中单位时间内流入矿坑包括井、巷和巷道系统的水量，矿井涌水量的大小常用每小时或每分钟的流量表示，单位为m3。
计算时，所述矿井水涌水量Winf为矿井内实际已利用量及滞留水量、排到矿井外的水量三部分综合；其中，实际已利用量通过水表计量或蓄水池测量，排到矿井外的水量通过溢流堰流量计测量，滞留水量为不同矿区矿井内蓄水池实测的水深和水面面积的乘积。
矿井水资源量W1为相对稳定阶段的矿井涌水量，其单位为m3。
(2)调查获取矿井水处理损失水量Wloss及不可利用的水量Wna，计算矿井水可利用量W2如下公式所示：
W2＝W1-(Wloss+Wna)，
其中，所述矿井水可利用量W2是指经蓄水池或小型湖库调蓄后且有一定保证率能再利用的水资源量，所述不可利用的水量Wna为有毒、有害水体的水量；W2、Wloss及Wna的单位均为m3；
(3)调查获取矿区内的实际利用量Wuin，通过计量设施准确获取矿区外的实际利用量Wuout，计算矿井水资源开发利用潜力值W3如下公式所示：
W3＝W2-(Wuin+Wuout)，
其中，Wuin、Wuout及W3的单位均为m3；
(4)根据矿井水资源开发利用潜力值W3，将各矿区的矿井排水集中处理，使其水质达到用水户需求，并经调节池调蓄，通过管网输送至用水户所属地区，如：工业园区、矿区居民区、矿区生态园区，形成矿井水的再利用。
有益效果：本发明具有以下优点：1、可以有效利用矿井水资源，减少环境污染；2、对现有或规划的煤矿的矿井水的开发利用潜力进行估计，以便调节池调蓄，可更好地规划实现废水再利用；3、满足各区域自身需求及基础条件，实现矿井水利用的区域协调发展。
附图说明
图1为本发明总流程图。
具体实施方式
以宁东基地马家滩矿区为例，本发明所述的一种煤矿矿井水利用方法，计算时段为年，包括步骤：
(1)获取矿井水涌水量Winf＝680000m3，计算矿井水资源量W1如下公式所示：
W1＝Winf＝680000m3；
(2)获取矿井水处理损失水量Wloss＝30000m3，不可利用的水量Wna＝0，计算矿井水可利用量W2如下公式所示：
W2＝W1-(Wloss+Wna)＝680000-(30000+0)＝650000m3
其中，所述矿井水可利用量W2是指在技术上可行、经济上合理的情况下，通过工程措施能进行调节利用且有一定保证率的那部分水资源量；W2、Wloss及Wna的单位均为m3；
(3)调查获取矿区内的实际利用量Wuin＝80000m3，通过计量设施准确获取矿区外的实际利用量Wuout＝0，计算矿井水资源开发利用潜力值W3如下公式所示：
W3＝W2-(Wuin+Wuout)＝650000-(80000+0)＝570000m3
其中，Wuin、Wuout及W3的单位均为m3；
(4)根据矿井水资源开发利用潜力值W3，将各矿区的矿井排水集中处理，使其水质达到用水户需求，并经调节池调蓄，通过管网输送至用水户所属地区，宁东煤炭基地矿井排水主要分两部分：南部统一收集到马家滩矿区矿井水南湖工程，经处理后供给规划园区，北部统一收集到宁东基地核心区工业污水集送再利用一期工程，经处理后供给规划园区。目前，红柳煤矿、双马煤矿、金风煤矿、石槽村煤矿、麦垛山煤矿等5座煤矿的矿井水排至小南湖，矿井水处理后向中铝银星电厂、华电永利电厂等企业供水。
Claims (7)
1.一种煤矿矿井水利用方法，其特征在于，包括步骤：
(1)在单位时间内，获取矿井水涌水量Winf，通过如下公式计算矿井水资源量W1：
W1＝Winf，
其中，Winf及W1的单位均为m3；
(2)获取矿井水处理损失水量Wloss及不可利用的水量Wna，通过如下公式计算矿井水可利用量W2：
W2＝W1-(Wloss+Wna)，
其中，W2、Wloss及Wna的单位均为m3；
(3)获取矿区内的实际利用量Wuin，通过计量设施获取矿区外的实际利用量Wuout，并通过如下公式计算矿井水资源开发利用潜力值W3：
W3＝W2-(Wuin+Wuout)，
其中，Wuin、Wuout及W3的单位均为m3；
(4)根据矿井水资源开发利用潜力值W3，将各矿区的矿井排水集中处理，使其水质达到用水户需求，并经调节池调蓄，通过管网向水户所属地区分配供水。
2.根据权利要求1所述的一种煤矿矿井水利用方法，其特征在于：步骤(1)中，所述单位时间为年或月。
3.根据权利要求1所述的一种煤矿矿井水利用方法，其特征在于，步骤(1)中，所述矿井涌水量为：从煤矿开拓到回采过程中单位时间内流入矿坑包括井、巷和巷道系统的水量。
4.根据权利要求3所述的一种煤矿矿井水利用方法，其特征在于，步骤(2)中，所述矿井涌水量包括矿井内实际已利用量及滞留水量、排到矿井外的水量；其中，实际已利用量通过水表计量或蓄水池测量，排到矿井外的水量通过溢流堰流量计测量，滞留水量根据不同矿区矿井内蓄水池实测的水深和水面面积进行计算。
5.根据权利要求1所述的一种煤矿矿井水利用方法，其特征在于，步骤(1)中，所述不可利用的水量Wna为有毒、有害水体的水量。
6.根据权利要求1所述的一种煤矿矿井水利用方法，其特征在于，所述矿井水可利用量为：经蓄水池或小型湖库调蓄后用于利用的水资源量。
7.根据权利要求1所述的一种煤矿矿井水利用方法，其特征在于：所述用水户所属地区包括工业园区、矿区居民区、矿区生态园区。
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| CN113762774A (zh) * | 2021-07-07 | 2021-12-07 | 中国水利水电科学研究院 | 一种矿区所在地矿井水配置方法 |
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| CN108316924A (zh) * | 2018-01-30 | 2018-07-24 | 中国矿业大学 | 一种保水采煤矿井/矿区等级划分方法 |
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| CN113762774A (zh) * | 2021-07-07 | 2021-12-07 | 中国水利水电科学研究院 | 一种矿区所在地矿井水配置方法 |
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