Automatic clean water and sewage separating and discharging device for strip mine stope

Abstract

The invention relates to an automatic clean water and sewage separating and discharging device for a strip mine stope. The device comprises a front-end judgment part, a middle-end control part and a tail-end water discharging part, the front-end judgment part comprises a water inlet ditch, a reservoir, a water component detection probe, a data wireless transmitter and an online multi-parameter water quality tester; the middle end control part comprises a data wireless receiver 1, a gate hoist, a gate lifting steel cable I, a gate lifting steel cable II, a gate I, a gate II and a hoist frame beam; and the tail end drainage part comprises a side wall, a clear water desilting basin bottom plate, a sewage desilting basin bottom plate, a clear water ditch and a sewage ditch. The device is integrated in structure and high in automation degree, a data acquisition operation method is simple and convenient, data collection is fast, online multi-parameter water component detection precision is high, a detection result can be rapidly processed and transmitted to a gate hoist, gate opening and closing are controlled according to national standards, clean water and sewage are effectively separated, and the device is suitable for large-scale popularization and application. And high treatment cost caused by mixing clear water with sewage is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of environmental protection, and in particular relates to the separation and drainage of clean and dirty water in an open-pit mine. Background Art

[0002] The non-ferrous metal ores mined in open-pit mines in my country are mainly sulfide ores, chalcopyrite, pyrite and other minerals. These minerals are easily oxidized by oxygen-containing rainwater that infiltrates the surface when in contact with air or are easily produced acidic water (wastewater) containing heavy metal ions. Acidic mine water is an industrial water with an acidic pH value and rich in a variety of toxic elements. If it cannot be treated in a timely and effective manner, it will seriously affect the balance of the surrounding ecological system, causing soil acidification, crop yield reduction and harm to the growth of plants and animals. In open-pit mines, rainwater flows through vegetation-rich areas as clear water, and rainwater flows through the exposed surface areas of mine pits as acidic water. In heavy rain conditions, part of the clear water will mix with the acidic water, resulting in an increase in the amount of acidic water, thereby increasing the cost of acidic water treatment. At present, traditional drainage measures generally include installing drainage pipes and digging drainage ditches. These traditional measures cannot accurately separate clean water and sewage. In view of this, it is crucial to design a drainage device for separating clean and sewage water. Summary of the invention

[0003] The invention provides an automatic clean and dirty water separation and drainage device for an open-pit mine, so as to solve the technical problem that the sewage and clean water are mixed during the rainy season, resulting in an increase in sewage treatment cost.

[0004] The present invention is achieved through the following technical solutions.

[0005] The invention discloses an automatic clean and dirty water separation and drainage device for an open-pit mine, which comprises a front-end judgment part, a middle-end control part and a terminal drainage part.

[0006] The front-end judgment part includes a water inlet ditch, a water reservoir, a water component detection probe, a data wireless transmitter, and an online multi-parameter water quality measuring instrument.

[0007] The water inlet ditch is connected to the water reservoir, a water component detection probe is provided in the water reservoir, an online multi-parameter water quality meter is installed on the side wall of the water reservoir, the water component detection probe is electrically connected to the online multi-parameter water quality meter, and a data wireless transmitter is installed above the online multi-parameter water quality meter. The front-end judgment part is connected to the middle-end control part. The front-end judgment part is used to judge the nature of the incoming water, and transmits the data after the incoming water component analysis to the middle-end control part through the data wireless transmitter.

[0008] The middle-end control part includes a data wireless receiver 1, a gate opening and closing machine, a gate lifting cable I, a gate lifting cable II, a gate I, a gate II, and a beam of the opening and closing machine.

[0009] The data wireless receiver is installed above the gate hoist and is electrically connected to the gate hoist. The gate hoist is installed on the hoist frame beam. The gate hoist is connected to the gate lifting cable I and the gate lifting cable II. The gate lifting cable I is connected to the gate I, and the gate lifting cable II is connected to the gate II. The middle-end control part is used to control the water flow to the upper clear water settling tank or the lower sewage settling tank. Gate I and gate II work together, and the gate opening and closing conditions are divided into three states: water storage state, water flow to the clear water settling tank, and water flow to the sewage settling tank. The middle-end control part is connected to the terminal drainage part.

[0010] The terminal drainage part includes side walls, the bottom plate of the clean water sedimentation tank, the bottom plate of the sewage sedimentation tank, the clean water ditch, and the sewage ditch. The side walls and the bottom plate of the clean water sedimentation tank form the upper clean water sedimentation tank layer, the side walls and the bottom plate of the sewage sedimentation tank form the lower sewage sedimentation tank layer, the clean water ditch is connected to the clean water sedimentation tank layer, and the sewage ditch is connected to the sewage sedimentation tank layer. The terminal drainage part mainly reduces the flow rate of water and reduces the sand content of the water flow.

[0011] The automatic drainage device for clean and dirty water used in an open-pit mine of the present invention is operated during rainfall, and collects rainwater through an inlet ditch, which is directly connected to a reservoir, and the water flow is collected into the reservoir through the inlet ditch, and the first step of sedimentation is performed in the reservoir; a water component detection probe is installed on the side of the reservoir, and after the water in the reservoir is submerged by the water component detection probe, the water sample can be transmitted to an online multi-parameter water quality meter in real time, and a data wireless transmitter is installed above the online multi-parameter water quality meter. Based on the detection results of the online multi-parameter water quality meter, the sample can be analyzed to obtain the water composition, including key data such as ion type and ion concentration; based on the obtained data, analysis is performed through data analysis and transmission equipment, and the gate switch scheme is sent through the data wireless transmitter. The water discharge from the reservoir is jointly determined by gate Ⅰ1 and gate Ⅱ. The gate lifting cable Ⅰ is connected to gate Ⅰ, and the gate lifting cable Ⅱ is connected to gate Ⅱ. The gate hoist is connected to the top of the cable. The top of the gate hoist is connected to a data wireless receiver, which can obtain the gate opening and closing plan, and then the two gates are opened and closed. The back of the two gates is connected to a double-layer sedimentation tank. The double-layer sedimentation tank is divided into two layers, the bottom plate of the clean water sedimentation tank and the bottom plate of the sewage sedimentation tank. The concrete pouring part of the device needs to be covered with a waterproof material coating.

[0012] The present invention has the following beneficial effects: compared with the prior art, the present invention has a high degree of structural integration and automation, and the data collection operation method is simple and convenient; the present invention collects data quickly, and can detect changes in the composition of incoming water in a timely manner, so as to avoid the clean water from becoming sewage and being discharged into the clean water ditch, which causes all the clean water to be polluted; the water composition and ion content detection accuracy of the present invention is high, and the test results can be quickly processed and transmitted to the gate opening and closing machine to complete the gate opening and closing; the present invention can effectively separate clean and dirty water, prevent the mixing of clean and dirty water, and avoid the high treatment cost caused by the mixing of clean water with sewage. The device mainly obtains the heavy metal type and ion concentration data in the water body of the reservoir through the online multi-parameter water quality meter detection technology, and determines whether the ion concentration in the reservoir meets the national standard according to the program to control the opening and closing of the gate, so as to ensure that the clean and dirty water enter their respective drainage channels respectively. The device has the advantages of strong operability and high sensitivity. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall spatial structure of the present invention.

[0014] Figure 2 yes Figure 1 Schematic diagram of the mid-front end judgment area.

[0015] Figure 3 yes Figure 1 Schematic diagram of the mid-range control area.

[0016] Figure 4 yes Figure 1 Schematic diagram of the middle and end drainage areas.

[0017] Figure 5 yes Figure 3 Schematic diagram of gate opening and closing at the middle control part. Among them, (a) shows the gate opening and closing in the water storage state, (b) shows the gate opening and closing diagram when water flows to the clear water settling tank, and (c) shows the gate opening and closing diagram when water flows to the sewage settling tank.

[0018] In the figure, 1 is the water inlet ditch, 2 is the water storage tank, 3 is the double-layer desilting tank, 4 is the clean water ditch, 5 is the sewage ditch, 6 is the water component detection probe, 7 is the data wireless transmitter, 8 is the online multi-parameter water quality meter, 9 is the gate opening and closing machine, 10 is the gate lifting cable I, 11 is the gate lifting cable II, 12 is the gate I, 13 is the gate II, 14 is the opening and closing machine frame beam, 15 is the side wall, 16 is the clean water desilting tank bottom plate, 17 is the sewage desilting tank bottom plate, and 18 is the data wireless receiver. DETAILED DESCRIPTION

[0019] The embodiments of the present invention are described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered below.

[0020] The present embodiment describes an automatic drainage device for clean and dirty water used in an open-pit mine, comprising: the device is composed of a front-end judgment part, a middle-end control part and a terminal drainage part.

[0021] The front-end judgment part includes a water inlet ditch 1, a water reservoir 2, a water component detection probe 6, a data wireless transmitter 7, and an online multi-parameter water quality measuring instrument 8.

[0022] The water inlet ditch 1 is connected to the water reservoir 2, and a water component detection probe 6 is provided in the water reservoir 2. An online multi-parameter water quality meter 8 is installed on the side wall of the water reservoir 2. The water component detection probe 6 is electrically connected to the online multi-parameter water quality meter 8, and a data wireless transmitter 7 is installed above the online multi-parameter water quality meter 8. The front-end judgment part is connected to the middle-end control part. The front-end judgment part is used to judge the nature of the incoming water, and transmits the data after the analysis of the incoming water components to the middle-end control part through the data wireless transmitter 7. The depth of the water inlet ditch is 0.5m, and the bottom width is 1m. The depth of the water reservoir is 4m, and the bottom width is 1m. The tip of the water component detection probe is 0.5m away from the bottom of the water reservoir.

[0023] The middle-end control part includes a data wireless receiver 18, a gate opening and closing machine 9, a gate lifting cable I 10, a gate lifting cable II 11, a gate I 12, a gate II 13, and a gate opening and closing machine frame beam 14.

[0024] The data wireless receiver 18 is installed above the gate hoist 9 and is electrically connected to the gate hoist 9. The gate hoist 9 is installed on the hoist frame beam 14. The gate hoist 9 is connected to the gate lifting cable Ⅰ10 and the gate lifting cable Ⅱ11. The gate lifting cable Ⅰ10 is connected to the gate Ⅰ12, and the gate lifting cable Ⅱ11 is connected to the gate Ⅱ13. The middle-end control part is used to control the water flow to the upper clear water sedimentation tank or the lower sewage sedimentation tank. The size of gate Ⅰ12 and gate Ⅱ13 are both 0.5m*2m. Gate Ⅰ12 and gate Ⅱ13 work together. The gate opening and closing conditions are divided into three types: water storage state, water flow to the clear water sedimentation tank, and water flow to the sewage sedimentation tank. The middle-end control part is connected to the terminal drainage part.

[0025] The terminal drainage part includes a side wall 15, a bottom plate 16 of a clean water sedimentation tank, a bottom plate 17 of a sewage sedimentation tank, a clean water ditch 4, and a sewage ditch 5. The side wall 15 and the bottom plate 16 of the clean water sedimentation tank form an upper clean water sedimentation tank layer, the side wall 15 and the bottom plate 17 of the sewage sedimentation tank form a lower sewage sedimentation tank layer, the clean water ditch 4 is connected to the clean water sedimentation tank layer, and the sewage ditch 5 is connected to the sewage sedimentation tank layer. The terminal drainage part mainly reduces the flow rate of water and reduces the sand content of the water flow. The size of the clean water sedimentation tank is 10*10*2m, the size of the sewage sedimentation tank is 10*10*2m, the thickness of the bottom plate of the clean water sedimentation tank is 0.3m, the thickness of the bottom plate of the sewage sedimentation tank is 0.2m, and the bottom plates of the clean water sedimentation tank and the sewage sedimentation tank have an inclination angle of 4° with the horizontal plane along the water flow direction, and the inclination angle is conducive to water outflow.

[0026] The specific operation process of this embodiment is as follows: Based on engineering experience, the confluence area of ​​clean water and acidic water in the open-pit mining site is roughly identified, and the water inlet ditch 1 is arranged at the junction of clean and sewage water. When it rains heavily, the gate I 12 and the gate II 13 are quickly adjusted to the gate opening and closing state of the water storage state to prevent clean water from entering the sewage ditch 5. Due to the convergence of surface runoff, rainwater flows into the water inlet ditch 1 and then converges into the reservoir 2. As the water level gradually rises, the tip of the water component detection probe 6 contacts the water body and begins to sample for metal ion concentration measurement. Subsequently, the online multi-parameter water quality meter 8 will analyze the measured data to determine the concentration of each ion in the water in the reservoir 2. Through the result analysis, the gate opening and closing signal is transmitted by relying on the data wireless transmitter 7 on the online multi-parameter water quality meter 8. The data wireless receiver 18 above the gate opening and closing machine 9 will receive the signal and control the opening and closing of the gate. When the received signal determines that there is sewage in the water reservoir 2, gates I12 and II13 are quickly adjusted to the gate opening and closing conditions of the water flowing to the sewage desilting tank. At this time, the sewage will flow to the sewage desilting tank. Due to the increase in water flow area and the decrease in flow velocity, the sand carried by the water flow will remain in the sewage desilting tank, and the sewage will flow out through the sewage ditch; when the received signal determines that there is clean water in the water reservoir 2, gates I12 and II13 are quickly adjusted to the gate opening and closing conditions of the water flowing to the clean water desilting tank. At this time, the clean water will flow to the clean water desilting tank. Due to the increase in water flow area and the decrease in flow velocity, the sand carried by the water flow will remain in the clean water desilting tank, and the clean water will flow out through the clean water ditch.

Claims

1. An automatic drainage device for clean and dirty water in an open-pit mine, characterized in that The device includes a front-end judgment part, a middle-end control part and a terminal drainage part; The front-end judgment part includes a water inlet ditch, a water reservoir, a water component detection probe, a data wireless transmitter, and an online multi-parameter water quality measuring instrument; The water inlet ditch is connected to the water reservoir, a water component detection probe is provided in the water reservoir, an online multi-parameter water quality meter is installed on the side wall of the water reservoir, the water component detection probe is electrically connected to the online multi-parameter water quality meter, and a data wireless transmitter is installed above the online multi-parameter water quality meter; the front-end judgment part is connected to the middle-end control part; the front-end judgment part is used to judge the nature of the incoming water, and transmits the data after the incoming water component analysis to the middle-end control part through the data wireless transmitter; The middle-end control part includes a data wireless receiver 1, a gate hoist, a gate lifting cable Ⅰ, a gate lifting cable Ⅱ, a gate Ⅰ, a gate Ⅱ, and a hoist frame beam; The data wireless receiver is installed above the gate hoist and is electrically connected to the gate hoist. The gate hoist is installed on the hoist frame beam. The gate hoist is connected to the gate lifting cable I and the gate lifting cable II. The gate lifting cable I is connected to the gate I, and the gate lifting cable II is connected to the gate II. The middle-end control part is used to control the water flow to the upper clear water settling tank or the lower sewage settling tank. The gate I and the gate II work together, and the gate opening and closing conditions are divided into three states: water storage state, water flow to the clear water settling tank, and water flow to the sewage settling tank; the middle-end control part is connected to the terminal drainage part; The terminal drainage part includes side walls, a clear water sedimentation tank bottom plate, a sewage sedimentation tank bottom plate, a clear water ditch, and a sewage ditch; the side walls and the clear water sedimentation tank bottom plate constitute an upper clear water sedimentation tank layer, the side walls and the sewage sedimentation tank bottom plate constitute a lower sewage sedimentation tank layer, the clear water ditch is connected to the clear water sedimentation tank layer, and the sewage ditch is connected to the sewage sedimentation tank layer.

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