A filling body permeate water quality detection sampling device and use method thereof

Abstract

The present invention discloses a filling body seepage water quality detection sampling device and a method for using the same. The sampling device is composed of a filling body seepage water supply system, a filling body casting mold and a filling body seepage water collection system; the filling body seepage water supply system is composed of a water supply tank, a water supply pipe and a seepage water flow control system, the filling body casting mold is composed of an external mold and an embedded mold, and the filling body seepage water collection system is composed of a wedge-shaped box, a water outlet pipe and a sampling bucket; the method for using the device is: first, a filling body specimen is prepared using a filling body casting mold, and then the seepage water is supplied through the seepage water supply system; and then the seepage water is collected through the filling body seepage water collection system and sent for inspection. The present invention has the advantages of simple structure, convenient operation, and easy maintenance.

Description

Technical Field

[0001] The invention relates to the technical field of mine filling and mining, and in particular to a filling body seepage water quality detection and sampling device and a use method thereof. Background Art

[0002] Backfill mining is a green, environmentally friendly and sustainable mining method. It can not only solve the problems of tailings accumulation, goaf collapse and surface environmental pollution, but also has the advantages of high resource recovery rate and effective control of ground pressure. But at the same time, the backfill mining method also brings some new problems when filling the mixed tailings into the underground goaf, namely the impact of tailings filling on the groundwater environment, especially in some mines where there are groundwater bodies (especially drinking water sources). Therefore, tailings filling must consider the impact on the groundwater environment to ensure that the groundwater is not polluted. Based on this, it is necessary to take some necessary demonstration measures for the feasibility of tailings filling, so as to achieve the purpose of being able to more conveniently and accurately detect the water quality of the seepage water of the filling body. At present, there is little research on the impact of tailings filling on groundwater in China, and it is of great practical significance to carry out research on the detection of tailings filling bodies on groundwater. At the same time, groundwater sampling and testing is also a difficult problem. There are currently no mature or standard sampling devices and processes for tailings filling water seepage quality testing at home and abroad. The general traditional sampling and testing process is not only time-consuming but also inconvenient. Therefore, it is particularly important to develop a sampling device and process that can easily and conveniently detect the water quality of tailings filling water seepage.

[0003] There are few studies on the detection of groundwater by tailings filling bodies at home and abroad, and there is no corresponding sampling device and process for the detection of water quality of tailings filling body seepage. In particular, through patent search and literature search, there are few existing technical achievements in the field of more realistic simulation of underground filling body seepage process and collection of tailings filling body seepage water samples and technical index detection research. Summary of the invention

[0004] In view of the deficiencies in the prior art, the object of the present invention is to provide a filling body permeate water quality detection sampling device and a method of using the same.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a filling body seepage water quality detection sampling device, characterized in that it includes a filling body seepage water supply system, a filling body casting mold and a filling body seepage water collection system;

[0006] The filling seepage water replenishment system is composed of a water supply tank, a water supply pipe and a seepage water flow control system. One end of the water supply pipe is connected to the water supply tank, and the other end of the pipe mouth is located 5 to 8 cm from the center of the upper surface of the filling body casting mold; the seepage water flow control system is composed of a control switch, a detection line, a power control cabinet, a power line and a sensor. The control switch is installed on the water supply pipe. The control switch is an electric regulating valve, which accurately adjusts and controls the amount of seepage water according to the speed of the seepage water at the bottom of the filling body casting mold;

[0007] The filling body casting mold is composed of an external mold and an embedded mold. The external mold is a hollow cube, the four walls of which are stainless steel plates, the bottom is a metal mesh frame, and a removable and replaceable permeable plate is laid on the metal mesh frame. The embedded mold is a semi-cylindrical shape, which is fixed to the outer wall of the external model by rotating cross bars at both ends. The installation and removal of the embedded mold can be achieved by rotating the cross bar;

[0008] The filling body infiltration water collection system consists of a wedge-shaped box, an outlet pipe and a sampling bucket; the wedge-shaped box is a stainless steel quadrangular pyramid box, the upper part of which is welded to the filling body casting mold, and the bottom of the wedge-shaped box is fixed on a metal support frame, and the bottom is connected to the outlet pipe; the sampling bucket is made of stainless steel, and its bucket cover is provided with a water inlet hole and a hole cover, and the diameter of the water inlet hole is slightly larger than the diameter of the outlet pipe.

[0009] Preferably, the filling body casting mold and the wedge-shaped box are fixed on a metal support frame, the length and width of the external mold are equal, the height is 1 / 2 of the width, the radius of the embedded mold is 1 / 2 of the height of the external mold, and the area of ​​the metal support frame is twice the bottom area of ​​the external mold.

[0010] In order to achieve the above-mentioned purpose of the invention, the present invention also provides a method for using the above-mentioned filling body permeate water quality detection sampling device, comprising the following steps:

[0011] Step 1: Prepare a filling body specimen, inject the filling slurry into the space between the outer mold and the inner mold, and after the filling slurry solidifies and forms, remove the inner mold to form a semi-cylindrical groove on the upper surface of the filling body specimen;

[0012] Step 2: Supply infiltration water. Turn on the control switch. The infiltration water supply system supplies infiltration water to the groove on the surface of the prepared filling test block. The amount of water is automatically adjusted and controlled by the control switch on the water supply pipe according to the infiltration speed of different mine filling bodies.

[0013] Step 3: Collect the permeate water sample of the filling body. The permeate water that has permeated the filling body specimen is collected by the wedge-shaped box disposed below the filling body casting model to the water outlet pipe and flows into the sampling bucket;

[0014] Step 4: Send the permeated water of the filling body for inspection. Seal the sampling bucket containing the permeated water sample and send it to the water quality testing and analysis room in time for water sample analysis according to the determined test indicators, and draw up and record the water quality test report results.

[0015] Beneficial Effects

[0016] Compared with the prior art, the present invention has the following beneficial effects: (1) the present invention can completely and realistically simulate the underground filling body seepage process and collect filling body seepage water samples and detect the water quality, which is convenient and practical; (2) the present invention has the advantages of easy operation, simple structure and easy maintenance; (3) the bottom of the external mold in the present invention adopts a special permeable plate, which can not only support the weight of the poured filling slurry, but also has a good filtering and permeability effect. Compared with the prior art, it can more timely and effectively accelerate the filtering and permeability speed, which is conducive to better control and acceleration of the test process; (4) the amount of water seepage of the filling body of the present invention is controlled by a control switch with a sensor. The control switch monitors the seepage speed of the mine filling body model on the mold bottom to accurately adjust the amount of water, thereby controlling the amount of seepage water, and the control switch is simple to operate and highly practical.

[0017] The technical solution of the present invention is further described in detail below through the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the structure of a sampling device for detecting the quality of permeated water in a filling body provided by the present invention;

[0019] Figure 2 A side view of a sampling device for detecting water quality of permeated water of a filling body provided by the present invention;

[0020] Figure 3 A schematic diagram of the structure of an external mold in the filling body permeation water quality detection and sampling device provided by the present invention;

[0021] Figure 4 A schematic diagram of the structure of an embedded mold in the filling body permeation water quality detection and sampling device provided by the present invention;

[0022] Figure 5 A schematic diagram of the structure of a wedge-shaped box in the filling body permeation water quality detection and sampling device provided by the present invention;

[0023] Figure 6 This is a schematic diagram of a permeate water flow control system in a filling body permeate water quality detection and sampling device provided by the present invention.

[0024] In the figure: 1-water supply tank; 2-control switch; 3-water supply pipe; 4-external mold; 5-wedge-shaped box; 6-rotating cross bar; 7-water outlet pipe; 8-sampling bucket; 9-embedded mold; 10-metal support frame; 11-metal mesh frame; 12-detection line; 13-power control cabinet; 14-power line; 15-sensor. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions of various embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0026] Combination Figures 1 to 6 As shown, a filling body seepage water quality detection sampling device is characterized in that it comprises a filling body seepage water replenishment system, a filling body casting mold and a filling body seepage water collection system;

[0027] The filling seepage water replenishment system is composed of a water supply tank 1, a water supply pipe 3 and a seepage water flow control system. One end of the water supply pipe 3 is connected to the water supply tank 1, and the other end of the pipe mouth is located 5 to 8 cm from the center of the upper surface of the filling body casting mold; the seepage water flow control system is composed of a control switch 2, a detection line 12, a power control cabinet 13, a power line 14 and a sensor 15. The control switch 2 is installed on the water supply pipe 3. The control switch 2 is an electric regulating valve, which accurately adjusts and controls the amount of seepage water according to the speed of the seepage water at the bottom of the filling body casting mold;

[0028] The filling body casting mold is composed of an external mold 4 and an embedded mold 9. The external mold 4 is a hollow cube, and its four walls are stainless steel plates. The bottom is a metal mesh frame 11, and a removable and replaceable permeable plate is laid on the metal mesh frame 11. The embedded mold 9 is semi-cylindrical and is fixed to the outer wall of the external model by rotating cross bars 6 at both ends. The installation and removal of the embedded mold 9 can be achieved by rotating the cross bars.

[0029] The filling body infiltration water collection system consists of a wedge-shaped box 5, a water outlet pipe 7 and a sampling bucket 8; the wedge-shaped box 5 is a stainless steel quadrangular pyramid box, the upper part of which is welded to the filling body casting mold, and the bottom of the wedge-shaped box 5 is fixed on the metal support frame 10, and the bottom of which is connected to the water outlet pipe 7; the sampling bucket 8 is made of stainless steel, and its bucket cover is provided with a water inlet hole and a hole cover, and the diameter of the water inlet hole is slightly larger than the diameter of the water outlet pipe 7.

[0030] Preferably, the filling body casting mold and the wedge-shaped box 5 are fixed on a metal support frame 10, the length and width of the external mold 4 are equal, the height is 1 / 2 of the width, the radius of the embedded mold 9 is 1 / 2 of the height of the external mold 4, and the area of ​​the metal support frame 10 is twice the bottom area of ​​the external mold 4.

[0031] In order to achieve the above-mentioned purpose of the invention, the present invention also provides a method for using the above-mentioned filling body permeate water quality detection sampling device, comprising the following steps:

[0032] Step 1: Prepare a filling body specimen, inject the filling slurry into the space between the outer mold 4 and the inner mold 9, and after the filling slurry solidifies and forms, remove the inner mold 9 to form a semi-cylindrical groove on the upper surface of the filling body specimen;

[0033] Step 2: supply infiltration water. Turn on the control switch 2. The infiltration water supply system supplies infiltration water to the groove on the surface of the prepared filling test block. The amount of water is automatically adjusted and controlled by the control switch 2 on the water supply pipe 3 according to the infiltration speed of different mine filling bodies.

[0034] Step 3: Collect the filling body seepage water sample. The seepage water that has permeated the filling body specimen is collected by the wedge-shaped box 5 disposed below the filling body casting model to the water outlet pipe 7 and flows into the sampling bucket 8;

[0035] Step 4: Send the permeated water of the filling body for inspection. Seal the sampling bucket 8 containing the permeated water sample and send it to the water quality testing and analysis room in time for water sample analysis according to the determined testing indicators, and obtain and record the water quality test report results.

[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A method for using a filling body permeate water quality detection sampling device, characterized in that: The following steps are involved: Step 1: Prepare a filling body specimen, inject the filling slurry into the space between the outer mold and the inner mold, and after the filling slurry solidifies and forms, remove the inner mold to form a semi-cylindrical groove on the upper surface of the filling body specimen; Step 2: Supply infiltration water. Turn on the control switch. The infiltration water supply system supplies infiltration water to the groove on the surface of the prepared filling test block. The amount of water is automatically adjusted and controlled by the control switch on the water supply pipe according to the infiltration speed of different mine filling bodies. Step 3: Collect the permeate water sample of the filling body. The permeate water that permeates the filling body specimen is collected by the wedge-shaped box disposed below the filling body casting model to the water outlet pipe and flows into the sampling bucket; Step 4: Send the permeated water of the filling body for inspection. Seal the sampling bucket containing the permeated water sample and send it to the water quality testing and analysis room in time for water sample analysis according to the determined test indicators, and obtain and record the water quality test report results; The filling body seepage water quality detection sampling device is composed of a filling body seepage water supply system, a filling body casting mold and a filling body seepage water collection system; the filling body seepage water supply system is composed of a supply water tank, a water supply pipe and a seepage water flow control system, one end of the water supply pipe is connected to the supply water tank, and the other end of the pipe mouth is located 5 to 8 cm from the center of the upper surface of the filling body casting mold; the seepage water flow control system is composed of a control switch, a detection line, a power control cabinet, a power line and a sensor, the control switch is installed on the water supply pipe, and the control switch is an electric regulating valve, which accurately adjusts and controls the amount of seepage water according to the speed of the seepage water at the bottom of the filling body casting mold; The filling body casting mold is composed of an external mold and an embedded mold. The external mold is a hollow cube with four walls made of stainless steel plates and a metal mesh frame at the bottom. A removable and replaceable water-permeable plate is laid on the metal mesh frame. The embedded mold is semi-cylindrical and is fixed to the outer wall of the external model by rotating cross bars at both ends. The installation and removal of the embedded mold can be achieved by rotating the cross bars; The filling body infiltration water collection system is composed of a wedge-shaped box, an outlet pipe and a sampling bucket; the wedge-shaped box is a stainless steel quadrangular pyramid box, the upper part of which is welded to the filling body casting mold, the bottom of the wedge-shaped box is fixed to the metal support frame, and the bottom is connected to the outlet pipe; the sampling bucket is made of stainless steel, and its bucket cover is provided with a water inlet hole and a hole cover, and the diameter of the water inlet hole is slightly larger than the diameter of the outlet pipe.

2. The method for using a filling body seepage water quality detection sampling device according to claim 1 is characterized in that: the filling body casting mold and the wedge-shaped box are fixed on a metal support frame, the length and width of the external mold are equal, the height is 1 / 2 of the width, the radius of the embedded mold is 1 / 2 of the height of the external mold, and the area of ​​the metal support frame is twice the bottom area of ​​the external mold.

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