CN-122010322-A - Colliery district water resource clean system

CN122010322ACN 122010322 ACN122010322 ACN 122010322ACN-122010322-A

Abstract

The application relates to a water resource purification system for a coal mine area, which can accurately diagnose the water quality type through the real-time monitoring of key water quality parameters such as integrated hardness, turbidity and the like, adopts a two-dimensional threshold matrix judgment logic, drives a dynamic flow dividing device to intelligently distribute raw water to two optimized treatment branches, wherein the first treatment branch is used for concentrating and efficiently removing calcium and magnesium ions, softening by ion exchange and optional deep stabilization treatment, so as to solve the problem of scale formation of high-hardness water, and the second treatment branch is used for realizing the deep removal of turbidity by combining high-density clarification and ultrafiltration membrane filtration aiming at the water quality of high suspended matters, and the yielding water of the two branches is subjected to confluence disinfection, so as to produce stable and standard reuse water. Therefore, the problems that the fixed process flow cannot adapt to severe fluctuation of water quality of coal mine water, the purification efficiency is low, the energy consumption and the medicine consumption are high, the operation is unstable, scaling or blockage is easy to occur and the like are solved, the water quality working condition is dynamically matched, the purification efficiency and the stability are improved, and the operation cost is reduced.

Inventors

LIU ZHIJUN
YANG LIANG
Zhe Haisheng
WANG PENG
LI WEI

Assignees

陕西银河煤业开发有限公司

Dates

Publication Date: 20260512
Application Date: 20251230

Claims (10)

1. A water resource purification system for a coal mine area is characterized by comprising a multi-parameter on-line monitoring unit, a central intelligent control unit, a dynamic flow dividing device, a first treatment branch and a second treatment branch which are arranged in parallel, a collecting pipe, a disinfection unit and a water production storage tank, wherein the multi-parameter on-line monitoring unit, the central intelligent control unit, the dynamic flow dividing device, the first treatment branch and the second treatment branch are sequentially connected along the water flow direction, The multi-parameter on-line monitoring unit is deployed in the water inlet main pipe and is used for detecting the water quality of the water inlet in real time to obtain real-time water quality data, wherein the real-time water quality data at least comprises a hardness value and a turbidity value; the central intelligent control unit is electrically connected with the multi-parameter on-line monitoring unit and the dynamic diversion device, and is used for processing the real-time water quality data according to a preset decision logic and generating a diversion control instruction corresponding to the water quality type; The dynamic diversion device is arranged at the downstream of the water inlet main pipe and is used for selectively diverting the water inlet to the first processing branch or the second processing branch or simultaneously diverting the water inlet to the two branches for parallel processing according to the diversion control instruction; The first treatment branch comprises an ion exchange softening device for removing calcium and magnesium ions, and a cartridge filter positioned downstream of the ion exchange softening device; the second treatment branch comprises a high-density clarifying tank for removing suspended matters and an ultrafiltration membrane component; The water outlet ends of the first treatment branch and the second treatment branch are connected with the inlet of the collecting pipe, and the outlet of the collecting pipe is sequentially connected with the disinfection unit and the water production storage tank.
2. The water resource purification system in a coal mine area according to claim 1, wherein the multi-parameter on-line monitoring unit comprises a turbidity sensor for measuring the concentration of suspended matters in the inflow water, a total dissolved solids sensor for measuring total dissolved solids, a hardness on-line analyzer for directly measuring the concentration of calcium and magnesium ions, and a pH meter for measuring the pH value of the inflow water.
3. The system for purifying water resources in a coal mine area according to claim 1, wherein the preset decision logic is used for classifying water quality based on a two-dimensional threshold matrix formed by the hardness value and the turbidity value, and the water quality classification at least comprises a high hardness dominant type, a high turbidity dominant type and a mixed type; when the quality of the incoming water is determined to be the mixed type, the diversion control instruction is a mixed mode instruction which enables the dynamic diversion device to divert the incoming water to the first processing branch and the second processing branch for parallel processing.
4. A coal mine area water resource purification system as claimed in claim 3 wherein the mixed mode instruction includes a water distribution ratio to the first and second treatment branches, the water distribution ratio being dynamically determined by the central intelligent control unit based on the hardness value and the turbidity value measured in real time.
5. The water resource purification system in a coal mine area according to claim 1, wherein the first treatment branch is further connected in series with a deep softening module at the downstream of the ion exchange softening device and the upstream of the cartridge filter, and the deep softening module is a combined device of carbon dioxide aeration and calcium carbonate crystallization or a weak acid cation exchange device.
6. The water resource purification system in a coal mine area according to claim 5, wherein the selection and operation parameters of the deep softening module are dynamically controlled by the central intelligent control unit according to the pH value or alkalinity measurement value of the water discharged from the ion exchange softening device.
7. The water resource purification system for a coal mine area according to claim 1, further comprising a wastewater cooperative treatment unit, wherein an inlet of the wastewater cooperative treatment unit is connected with a regenerated wastewater discharge port of the ion exchange softening device, a sludge discharge port of the high-density clarifier, and a backwash wastewater discharge port of the ultrafiltration membrane assembly, respectively; The wastewater co-treatment unit is configured to be capable of delivering the regenerated wastewater to the high density clarifier.
8. The water resource purification system in a coal mine area according to claim 1, wherein the dynamic diversion device is an electric adjustment three-way valve or is formed by connecting two electric switch valves which are controlled by the central intelligent control unit and are synchronously linked in parallel.
9. The water resource purification system for coal mine areas according to claim 1, wherein the regeneration trigger of the ion exchange softening device is judged and automatically started by the central intelligent control unit based on the accumulated treated water amount and/or the real-time water hardness value of the ion exchange softening device.
10. The water resource purification system in a coal mine area according to claim 1, wherein the central intelligent control unit is further configured to dynamically adjust the amounts of coagulant and coagulant aid added in the high-density clarifier according to the turbidity value and the pH value.

Description

Colliery district water resource clean system Technical Field The application relates to the technical field of water pollution control, in particular to a water resource purification system for a coal mine area. Background The water resource management and the environmental protection are important technical fields for guaranteeing industrial production and ecological safety, wherein the purification treatment of industrial wastewater is a key link for realizing the cyclic utilization of water resources. The mine water of the coal mine is taken as typical industrial wastewater, and the efficient purification of the mine water is of great significance for the protection and sustainable development of water resources of mining areas. The quality of mine water in coal mines is obviously affected by geological conditions, mining activities and seasonal rainfall, and is often characterized by two typical and severe fluctuation, namely, water body concentration, high hardness (Ca 2+、Mg2+) and total dissolved solids (Total Dissolved Solids, TDS for short) in dry seasons, easy scaling of subsequent pipelines and equipment, and surface runoff inflow, rapid rise of suspended matters and turbidity, blockage of treatment facilities and increase of medicament consumption in rainy seasons. In the related art, a fixed process flow is adopted for treating mine water of a coal mine, such as 'coagulating sedimentation + filtering + disinfection' or whole-course ion exchange softening. The treatment mode has the obvious defects that the hardness and the total dissolved solid concentration of the water body are high in dry season, scaling ions cannot be effectively removed in a fixed process, so that the scaling risk of subsequent pipelines and equipment is increased, suspended matters and turbidity are increased rapidly in rainy season, a softening unit in the fixed process is easy to be blocked, operation is interrupted and frequent regeneration is caused, and the consumption and the operation cost of the medicament are greatly increased. The water resource purification system in the related art lacks intelligent perception and process self-adaptive adjustment capability to real-time water quality parameters, and the treatment path can not be dynamically optimized according to water quality characteristics, so that the overall purification efficiency is low, the energy consumption and the medicine consumption are high, and the actual requirements of economic and efficient purification of water resources in coal mining areas are difficult to meet, and the problem is to be solved. Disclosure of Invention The application provides a water resource purification system for a coal mine area, which aims to solve the problems of low purification efficiency, high energy consumption, high medicine consumption, unstable operation, easy scaling or blockage and the like caused by the fact that a fixed process flow cannot adapt to severe fluctuation of water quality of the coal mine water in the related technology, dynamically matches water quality working conditions, improves purification efficiency and stability, and reduces operation cost. The embodiment of the application provides a water resource purifying system for a coal mine area, which comprises a multi-parameter on-line monitoring unit, a central intelligent control unit, a dynamic flow dividing device, a first processing branch and a second processing branch which are arranged in parallel, a collecting pipe, a sterilizing unit and a water production storage tank, wherein the multi-parameter on-line monitoring unit, the central intelligent control unit, the dynamic flow dividing device, the first processing branch and the second processing branch are sequentially connected along the water flow direction, The multi-parameter on-line monitoring unit is deployed in the water inlet main pipe and is used for detecting the water quality of the water inlet in real time to obtain real-time water quality data, wherein the real-time water quality data at least comprises a hardness value and a turbidity value; the central intelligent control unit is electrically connected with the multi-parameter on-line monitoring unit and the dynamic diversion device, and is used for processing the real-time water quality data according to a preset decision logic and generating a diversion control instruction corresponding to the water quality type; The dynamic diversion device is arranged at the downstream of the water inlet main pipe and is used for selectively diverting the water inlet to the first processing branch or the second processing branch or simultaneously diverting the water inlet to the two branches for parallel processing according to the diversion control instruction; The first treatment branch comprises an ion exchange softening device for removing calcium and magnesium ions, and a cartridge filter positioned downstream of the ion exchange softening device; the second treatment branch c