Mine water quality on-line monitoring and advanced treatment system and method

Abstract

The invention discloses a mine water quality on-line monitoring and advanced treatment system and method, and relates to the technical field of mine water quality monitoring and treatment. The method comprises the following steps: the mine water pretreated by a mine water pretreatment module enters a calcified substance deep treatment module for preliminary removal of calcified substances; the mine water quality monitoring module is used for monitoring key indexes of the mine water treated by the calcified substance deep treatment module and carrying out real-time data statistics and transmission; the gas generating unit conveys gas with certain pressure to an atomizing nozzle connected with the mine water quality monitoring module, a gas-water mixture is generated for atomization and dust falling, and blockage of the atomizing nozzle caused by external dust is reduced; and when the atomizing nozzle stops working, the gas generating unit conveys gas with certain pressure into the calcified substance deep treatment module. According to the invention, the service life of the spray dust fall system can be practically prolonged, the atomization dust fall effect of a coal mine operation site is improved, and economical and precise dust fall is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of mine water quality monitoring and treatment, and in particular to a mine water quality online monitoring and deep treatment method. Background Art

[0002] As an important part of my country's energy structure, the high-concentration dust problem generated during the production of coal is becoming increasingly prominent, seriously threatening the physical and mental health of miners. With the coal mining process, a large amount of mine water resources are easily generated at the bottom of the well. After pretreatment, it is mainly used for mine dust reduction, coal washing and other work. At the same time, using the treated mine water for efficient spray dust reduction can effectively reduce the dust concentration in the air at the work site, improve the working environment, reduce the occurrence of occupational diseases such as pneumoconiosis, and protect the physical and mental health of miners. At the same time, it can alleviate the environmental contradiction between production water and discharged wastewater. According to the investigation and analysis of the problems and objective needs in the current mine water utilization process, it is found that the mine water contains not only amorphous particles mainly composed of coal rock particles and ultrafine particles mainly composed of clay minerals, but also a large amount of suspended matter, heavy metal ions, organic matter and microorganisms and other pollutants, resulting in long-term nozzle blockage during the spray dust reduction process, resulting in poor dust reduction effect. Therefore, it is necessary to use a combination of multiple means to deeply treat the water quality of the spray water to effectively ensure the long-term stable mining of coal mines and reduce dust dispersion.

[0003] The current related research in the existing technology mainly includes:

[0004] Application No. 201810054893.6 discloses a water purification treatment device, which includes a box body, a metal mesh cover, an activated carbon adsorbent and a water inlet pipe, and a water suction pump is arranged on the water inlet pipe; it includes a 5-micron PPF filter element, a 1-micron PPF filter element, an RO reverse osmosis membrane, a post-sintered activated carbon adsorption layer, a flocculation box, a flocculant medicine box, a stirring motor, a reducer, a first connecting pipe, a second connecting pipe, a filter press and a recovery box, the stirring motor is installed on the left outer wall of the flocculation box, a stirring shaft is arranged on the right output end of the reducer, and a stirring paddle is arranged on the stirring shaft, a diaphragm pump and a first valve are arranged on the first connecting pipe, a second valve is arranged on the second connecting pipe, a drain pipe is arranged on the drain outlet, and a third valve is arranged on the drain pipe.

[0005] The above patent application uses a 5-micron PPF filter element, a 1-micron PPF filter element, an RO reverse osmosis membrane and a post-sintered activated carbon adsorption layer to filter and adsorb layer by layer, and the adsorption is comprehensive, thereby improving the water purification and treatment capacity. However, there is still a technical problem that calcium ions in mine water cannot be deeply treated, and calcium ions are prone to form precipitation and deposition, thereby blocking the atomizing nozzle. Simply relying on existing technical methods cannot deeply treat calcium ions.

[0006] This shows that the prior art needs to be further improved. Summary of the invention

[0007] One of the purposes of the present invention is to provide an online monitoring and deep treatment system for mine water quality, which can effectively prevent the technical problem of blockage of the atomizing nozzle during the subsequent use of spray dust reduction. The present invention can effectively extend the service life of the spray dust reduction system, improve the atomization dust reduction effect at the coal mine operation site, and realize economical and precise dust reduction.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions:

[0009] A mine water quality online monitoring and deep processing system, comprising a mine water pretreatment module, a calcified material deep processing module, a mine water quality monitoring module, a water quality over-limit alarm module, a gas transmission module and a gas-water two-phase flushing module;

[0010] The mine water pretreatment module is used to preliminarily remove particles and organic suspended matter in the mine water;

[0011] The calcified material deep processing module comprises an ion exchange resin unit, a softening water unit and a reverse osmosis filtration unit arranged in sequence along the flow direction of the mine water. The mine water pretreated by the mine water pretreatment module enters the calcified material deep processing module for preliminary removal of the calcified material.

[0012] The mine water quality monitoring module is used to monitor the key indicators of the mine water after being treated by the calcified material deep treatment module, and to perform real-time data statistics and transmission;

[0013] The water quality over-limit alarm module is used to monitor the markers that cause the atomizing nozzle to be blocked;

[0014] The gas delivery module mainly includes a gas generation unit, which is used to deliver gas with a certain pressure to the atomizing nozzle connected to the mine water quality monitoring module to generate a gas-water mixture for atomization dust reduction and reduce the blockage of the atomizing nozzle caused by external dust; when the atomizing nozzle stops working, the gas generation unit delivers gas with a certain pressure to the calcified material deep processing module, and uses the gas with a certain pressure to perform secondary removal of the calcified material in the calcified material deep processing module;

[0015] The air-water two-phase flushing module is used to flush the pipelines in the calcified material deep processing module.

[0016] In the above-mentioned mine water quality online monitoring and deep treatment system, the mine water pretreatment module includes a raw water centrifugal unit, a particle precipitation unit and an activated carbon unit.

[0017] The above-mentioned mine water quality online monitoring and deep processing system, the mine water quality monitoring module includes a mud particle monitoring unit, a pH monitoring unit, a turbidity monitoring unit, a calcium ion monitoring unit and a temperature monitoring sensor unit.

[0018] The above-mentioned mine water quality online monitoring and deep processing system, the water quality over-limit alarm module includes an audible and visual alarm and an online alarm unit. When the water quality monitoring finds that the markers that are likely to cause nozzle blockage exceed the standard, the audible and visual alarm will emit an audible and visual alarm, and at the same time transmit the alarm signal to the mine water quality monitoring module online.

[0019] The above-mentioned online monitoring and deep treatment system for mine water quality, the gas-water two-phase flushing module includes a clean water tank, a pipeline flushing pump group and a sewage flushing discharge unit. The gas with a certain pressure is transported to the calcified material deep treatment module through the gas generation unit, and together with the water provided by the pipeline flushing pump group, a gas-water two-phase is formed, and the calcified material is deeply treated; one end of the clean water tank is connected to the calcified material deep treatment module, and the other end is connected to the sewage flushing discharge unit.

[0020] In the above-mentioned mine water quality online monitoring and deep processing system, the water quality over-limit alarm module is connected to a monitoring host and a power box.

[0021] Another object of the present invention is to provide a method for online monitoring and deep treatment of mine water quality, which adopts the above-mentioned online monitoring and deep treatment system of mine water quality, and comprises the following steps:

[0022] Step 1: The mine water enters the mine water pretreatment module and is processed in turn by the raw water centrifugal unit, the particle sedimentation unit and the activated carbon unit to filter and remove the coal mud rock composite particles and organic suspended matter rich in the mine water;

[0023] Step 2: The pretreated mine water enters the calcified material deep treatment module, and passes through the ion exchange resin unit, the softening water unit, and the reverse osmosis filtration unit in sequence to perform preliminary treatment on the calcified material, providing clean mine water for the atomizing nozzle;

[0024] Step 3: Use the mine water quality monitoring module to monitor the mine water treated by the calcified material deep processing module, and monitor that the qualified mine water and the gas with a certain pressure generated by the gas generation unit enter the atomizing nozzle together to form a gas-water mixture for atomization and dust reduction, thereby reducing the blockage of the atomizing nozzle caused by external dust; when the mine water quality monitoring module detects that the atomizing nozzle is blocked, the water quality over-limit alarm module will issue an audible and visual alarm, and start the gas-water two-phase flushing module to pass clean water into the calcified material deep processing module for cleaning. At the same time, the gas with a certain pressure generated by the gas generation unit is sent to the calcified material deep processing module, and the gas and clean water are mixed to form a gas-water two-phase to deeply remove the calcified material;

[0025] Step 4: The wastewater after deep removal is discharged through the sewage flushing discharge unit.

[0026] Compared with the prior art, the present invention brings the following beneficial technical effects:

[0027] The present invention proposes a method for online monitoring and deep treatment of mine water quality. First, a mine water pretreatment module pretreats the composite particles and organic suspended matter in the mine water to make it meet the standards for domestic miscellaneous water and daily use in mines. The pretreated mine water is sent to a calcified substance deep treatment module for calcification treatment to eliminate calcified substances such as calcium ions that are very likely to cause blockage of micron-level atomizing nozzles, thereby providing clean water for the continuous operation of the atomizing nozzles.

[0028] The mine water quality monitoring module, which is composed of mud particles, pH, turbidity, calcium ions and temperature monitoring sensor units, monitors the key indicators of spray mine water that cause blockage of the atomizing nozzle, and performs real-time data statistics and transmission; the water quality over-limit alarm module monitors the markers that cause blockage of the atomizing nozzle and sends out sound and light alarms. At the same time, the gas-water two-phase flushing module is started to pass clean water into the calcified material deep treatment module for cleaning. The gas with a certain pressure generated by the gas generation unit is sent to the calcified material deep treatment module, and the gas and clean water are mixed to form a gas-water two-phase to deeply remove the calcified material.

[0029] The deep treatment module for calcified materials is used to remove calcium ions and other calcified materials from mine water, effectively preventing technical problems such as blockage of the atomizing nozzle during the subsequent use of spray dust suppression, so as to effectively extend the service life of the spray dust suppression system, improve the atomizing dust suppression effect at the coal mine operation site, protect the physical and mental health of miners, and achieve economical and precise dust suppression. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention will be further described below in conjunction with the accompanying drawings:

[0031] Figure 1 The present invention is a flow chart of the method for online monitoring and deep treatment of mine water quality. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0033] It is understandable that the connection relationship described in this application refers to direct or indirect connection. For example, the connection between A and B can be either a direct connection between A and B or an indirect connection between A and B through one or more other electrical components. For example, A and C can be directly connected, and C and B can be directly connected, so that A and B are connected through C. It is also understandable that the "A connects B" described in this application can be a direct connection between A and B, or an indirect connection between A and B through one or more other electrical components.

[0034] In the description of this application, words such as "one", "two", etc. are only used to distinguish different objects, and do not limit the quantity and execution order, and words such as "one", "two", etc. do not necessarily limit differences. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0035] The technical solution of the present application is further described in detail below in conjunction with the accompanying drawings.

[0036] The online monitoring and deep processing system of mine water quality of the present invention includes a mine water pretreatment module, a calcified material deep processing module, a mine water quality monitoring module, a water quality over-limit alarm module, a gas transmission module and a gas-water two-phase flushing module. The multiple modules cooperate with each other to better remove pollutants in the mine, especially calcified materials deposited by solvents, thereby providing clean water for the continuous operation of the atomizing nozzle.

[0037] The mine water pretreatment module includes a raw water centrifugal unit, a particle sedimentation unit and an activated carbon unit. The raw water centrifugal unit separates the heavier impurities in the mine water under the action of centrifugal force and precipitates them in the particle sedimentation unit, and then the organic matter is adsorbed by the activated carbon unit.

[0038] The mine water is pumped into the sedimentation pretreatment water tank through a high-pressure pump in the bottom water tank. In the sedimentation pretreatment water tank, the mine water is pretreated in sequence through the raw water centrifugal unit, the particle sedimentation unit, and the activated carbon unit to remove the composite particles such as coal mud and organic suspended matter rich in the mine water, so as to achieve the mine water pretreatment standard for domestic miscellaneous water. The specific structures adopted by the raw water centrifugal unit, the particle sedimentation unit, and the activated carbon unit can be realized by those skilled in the art by referring to the existing technology.

[0039] The deep treatment module for calcified substances mainly includes an ion exchange resin unit, a softening water unit, and a reverse osmosis filtration unit. The ion exchange resin unit absorbs some high-salt substances in the mine water through dynamic adsorption; the softening water treatment unit preliminarily removes calcium ions and magnesium ions that are easy to scale in the mine water; the reverse osmosis filtration unit can block impurities such as ions and organic matter in the mine water to achieve the purpose of deep treatment of the mine water. The deep treatment module for calcified substances can eliminate calcium ions and other calcified substances that are very likely to cause blockage of micron-level atomizing nozzles, providing clean water for the continuous operation of the atomizing nozzles.

[0040] The mine water quality monitoring module includes a mud particle unit, a pH monitoring unit, a turbidity monitoring unit, a calcium ion monitoring unit and a temperature monitoring sensor unit, which are mainly used to monitor the key indicators of the spray mine water that causes the blockage of the atomizing nozzle, and to perform real-time data statistics and transmission. After the mine water quality monitoring module monitors that it is qualified, it passes through the bubble generator and the water pressure regulator and is sprayed out from the atomizing nozzle; as an innovation of the present invention, the gas delivery module brings the gas with a certain pressure into the atomizing nozzle together to form a gas-water mixture for atomization and dust reduction, thereby reducing the blockage of the atomizing nozzle caused by external dust. Therefore, the present invention uses a gas-water mixture for atomization and dust reduction at the atomizing nozzle, which is different from the mine water atomization and dust reduction in the prior art in that the gas-water mixture for atomization and dust reduction will not cause the atomizing nozzle to be blocked.

[0041] The gas delivery module includes a gas generation unit and a gas pressurizing unit. After the gas is generated by the gas generation unit, the gas pressurizing unit pressurizes it to form a gas with a certain pressure and delivers it to the atomizing nozzle. Another function of the gas delivery module is that when the atomizing nozzle stops working, the gas delivery module delivers a certain pressure of gas to the calcified material deep treatment module. The gas maintains a certain pressure and mixes with the water in the clean water tank to form a gas-water two-phase mixture, which can better remove the calcified material.

[0042] The water quality over-limit alarm module includes an audible and visual alarm and an online alarm unit. When the water quality monitoring finds that the markers that are likely to cause nozzle blockage exceed the standard, an audible and visual alarm is issued, and the alarm signal is transmitted online to the mine water quality monitoring module at the same time.

[0043] The gas-water two-phase flushing module includes a clean water tank, a pipeline flushing pump group and a sewage flushing discharge unit. The gas with a certain pressure is transported to the calcified material deep treatment module through the gas generation unit, and together with the water provided by the pipeline flushing pump group, a gas-water two-phase is formed, and the calcified material is deeply treated; one end of the clean water tank is connected to the calcified material deep treatment module, and the other end is connected to the sewage flushing discharge unit.

[0044] The processing method of the present invention is described in detail below.

[0045] The method for online monitoring and deep treatment of mine water quality includes the following steps:

[0046] Step 1: The mine water is pumped from the bottom water tank to the sedimentation pretreatment water tank by a high-pressure water pump, and is processed by the raw water centrifugal unit, the particle sedimentation unit and the activated carbon unit in sequence to filter and remove the coal mud rock composite particles and organic suspended matter rich in the mine water;

[0047] Step 2: The pretreated mine water passes through a spray pressure water pump and a one-way valve and then enters a calcified material deep treatment module, and sequentially passes through an ion exchange resin unit, a softening water unit, and a reverse osmosis filtration unit to perform preliminary treatment on the calcified material, thereby providing clean mine water for the atomizing nozzle;

[0048] Step 3, the mine water quality monitoring module is located behind the calcified material deep processing module, and a water pressure regulator and an atomizing nozzle are connected to the rear of the mine water quality monitoring module. The mine water treated by the calcified material deep processing module is monitored by the mine water quality monitoring module, and the qualified mine water and the gas with a certain pressure generated by the gas generation unit enter the atomizing nozzle together to form a gas-water mixture for atomization dust reduction, thereby reducing the blockage of the atomizing nozzle caused by external dust; when the mine water quality monitoring module detects that the atomizing nozzle is blocked, the water quality over-limit alarm module will emit an audible and visual alarm, and start the gas-water two-phase flushing module, and pass clean water into the calcified material deep processing module for cleaning. At the same time, the gas with a certain pressure generated by the gas generation unit is sent to the calcified material deep processing module, and the gas and clean water are mixed to form a gas-water two-phase to deeply remove the calcified material;

[0049] Step 4: The wastewater after deep removal is discharged through the sewage flushing and discharge unit to ensure the cleanliness of the calcified material deep treatment module.

[0050] Parts not described in the present invention can be implemented by referring to the existing technology.

[0051] It should be noted that any equivalent method or obvious variation method made by those skilled in the art under the guidance of this specification should be within the protection scope of the present invention.

[0052] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present application and are not intended to be limiting of the present application. As long as they are within the spirit of the present application, appropriate changes and modifications to the above embodiments should fall within the scope of protection of the claims of the present application.

Claims

1. A mine water quality online monitoring and deep processing system, characterized by: It includes a mine water pretreatment module, a calcified material deep treatment module, a mine water quality monitoring module, a water quality over-limit alarm module, a gas transmission module and a gas-water two-phase flushing module; The mine water pretreatment module is used to preliminarily remove particles and organic suspended matter in the mine water; The calcified material deep processing module comprises an ion exchange resin unit, a softening water unit and a reverse osmosis filtration unit arranged in sequence along the flow direction of the mine water. The mine water pretreated by the mine water pretreatment module enters the calcified material deep processing module for preliminary removal of the calcified material. The mine water quality monitoring module is used to monitor the key indicators of the mine water after being treated by the calcified material deep treatment module, and to perform real-time data statistics and transmission; The water quality over-limit alarm module is used to monitor the markers that cause the atomizing nozzle to be blocked and send out an alarm signal; The gas delivery module mainly includes a gas generation unit, which is used to deliver gas with a certain pressure to the atomizing nozzle connected to the mine water quality monitoring module to generate a gas-water mixture for atomization dust reduction and reduce the blockage of the atomizing nozzle caused by external dust; when the atomizing nozzle stops working, the gas generation unit delivers gas with a certain pressure to the calcified material deep processing module, and uses the gas with a certain pressure to perform secondary removal of the calcified material in the calcified material deep processing module; The air-water two-phase flushing module is used to flush the pipelines in the calcified material deep processing module.

2. The mine water quality online monitoring and deep processing system according to claim 1 is characterized by: The mine water pretreatment module comprises a raw water centrifugal unit, a particle precipitation unit and an activated carbon unit.

3. The mine water quality online monitoring and deep processing system according to claim 1 is characterized by: The mine water quality monitoring module includes a mud particle monitoring unit, a pH monitoring unit, a turbidity monitoring unit, a calcium ion monitoring unit and a temperature monitoring sensor unit.

4. The mine water quality online monitoring and deep processing system according to claim 1 is characterized by: The water quality over-limit alarm module includes an audible and visual alarm and an online alarm unit. When the water quality monitoring finds that the markers that are likely to cause nozzle blockage exceed the standard, the audible and visual alarm will emit an audible and visual alarm and simultaneously transmit the alarm signal to the mine water quality monitoring module online.

5. The mine water quality online monitoring and deep processing system according to claim 1 is characterized by: The gas-water two-phase flushing module includes a clean water tank, a pipeline flushing pump group and a sewage flushing discharge unit. The gas with a certain pressure is transported to the calcified material deep processing module through the gas generation unit, and together with the water provided by the pipeline flushing pump group, a gas-water two-phase is formed, and the calcified material is deeply processed; one end of the clean water tank is connected to the calcified material deep processing module, and the other end is connected to the sewage flushing discharge unit.

6. A mine water quality online monitoring and deep processing system according to claim 4, characterized in that: The water quality over-limit alarm module is connected to a monitoring host and a power box.

7. A method for online monitoring and deep treatment of mine water quality, characterized in that: It adopts the mine water quality online monitoring and deep treatment system according to any one of claims 1 to 6, and the treatment method comprises the following steps: Step 1: The mine water enters the mine water pretreatment module and is processed in turn by the raw water centrifugal unit, the particle sedimentation unit and the activated carbon unit to filter and remove the coal mud rock composite particles and organic suspended matter rich in the mine water; Step 2: The pretreated mine water enters the calcified material deep treatment module, and passes through the ion exchange resin unit, the softening water unit, and the reverse osmosis filtration unit in sequence to perform preliminary treatment on the calcified material, providing clean mine water for the atomizing nozzle; Step 3: Use the mine water quality monitoring module to monitor the mine water treated by the calcified material deep processing module, and monitor that the qualified mine water and the gas with a certain pressure generated by the gas generation unit enter the atomizing nozzle together to form a gas-water mixture for atomization and dust reduction, thereby reducing the blockage of the atomizing nozzle caused by external dust; when the mine water quality monitoring module detects that the atomizing nozzle is blocked, the water quality over-limit alarm module will issue an audible and visual alarm, and start the gas-water two-phase flushing module to pass clean water into the calcified material deep processing module for cleaning. At the same time, the gas with a certain pressure generated by the gas generation unit is sent to the calcified material deep processing module, and the gas and clean water are mixed to form a gas-water two-phase to deeply remove the calcified material; Step 4: The wastewater after deep removal is discharged through the sewage flushing discharge unit.

Images