Apparatus and method for measuring the effect of rock on the change of components in a water sample

Abstract

The application provides a device and method for measuring the influence of rock on the component change in a water sample. The application focuses on the change characteristics of the components in the water sample during the test process, and the influence of the natural rock composition and structure on the component change in the water, and is beneficial to the evaluation of the influence of the rock mass in the underground reservoir on the component content change in the water storage. The measuring method is simple in operation and reliable in result.

Description

TECHNICAL FIELD

[0001] The application relates to a device and method for measuring the influence of rock on the change of components in water. BACKGROUND

[0002] In the process of coal mining in the west of China, the mining area is faced with the problems of serious water shortage and ecological fragility. In the process of underground mining in many coal mines, the underground water resources and mine water resources near the mining area are stored in the underground structure by building underground reservoirs, so that the evaporation loss and waste of mine water discharge are avoided, and the requirements of industrial production and general daily life can be met after treatment. In practice, a series of actions, including adsorption, filtration and ion exchange, occur between the rock mass and coal mass in the underground reservoir and the mine water. The research on the interaction between rock and components in water is beneficial to understanding the mechanism of rock on water purification, reducing the original mine water treatment cost and improving the resource utilization of mine water.

[0003] The prior art method often focuses on the physical and chemical properties of rock after the action of water, or the effect of water treated and purified by artificial materials, and basically does not involve the test and measurement method of the influence of natural rock on the components in water. The action effect of rock in the underground reservoir cannot be accurately and quantitatively tested and analyzed. SUMMARY

[0004] To solve the problems in the prior art, the application provides a device and method for measuring the influence of rock on the change of components in water. The change characteristics of components in water sample in the test process and the influence of natural rock composition and structure on the change of components in water are focused on, which is beneficial to the systematic evaluation of the influence of rock mass in the underground reservoir on the change of component content in the stored water. The measurement method is simple in operation and reliable in result.

[0005] The first aspect of the application provides a device for measuring the influence of rock on the change of components in water sample, which comprises a sample storage box (I), a test box (II) and a collection container (IV) which are sequentially communicated, wherein the sample storage box (I) is used for storing the water sample to be tested; the test box (II) is used for providing a place for placing rock and rock and water sample to be tested; and the collection container (IV) is used for collecting the water sample from the test box (II).

[0006] According to some embodiments of the application, at least two water outlets are arranged on the test box (II), preferably at least one water outlet (9) is arranged on the side wall of the test box, and at least one water outlet (10) is arranged on the bottom of the test box, and more preferably, three water outlets (9) are arranged on the side wall of the test box.

[0007] According to some embodiments of the present application, the device further comprises a real-time monitoring module (III).

[0008] According to some embodiments of the present application, the sample storage tank (I) is connected to the test tank (II), the test tank (II) is connected to the collection container (IV), and the test tank (II) is connected to the real-time monitoring module (III). Preferably, the water outlet (9) of the test tank (II) is connected to the collection container (IV).

[0009] According to some embodiments of the present application, the sample storage tank (I) is provided with an agitation device (6).

[0010] In some preferred embodiments of the present application, the sample storage tank (I) is provided with one water inlet (1), one exhaust port (2), and three water outlets (3). The water inlet and outlet are provided with pipelines, and the pipelines are connected in series with water flow stop valves (4) and flow meters (5).

[0011] According to some embodiments of the present application, the three water outlets (3) of the sample storage tank (I) include an outlet (3a) and an outlet (3b) provided on opposite sides of the sample storage tank (I), and an outlet (3c) provided at the bottom.

[0012] According to some embodiments of the present application, one side outlet (3a) of the sample storage tank (I) is connected to the test tank (II-a), the other side outlet (3b) can be connected in parallel to another test tank (II-b), and the bottom outlet (3c) is used to discharge excess water samples and clean the container.

[0013] According to some embodiments of the present application, the sample storage tank (I) is a sealed transparent container, and the wall of the container is marked with a scale.

[0014] According to some embodiments of the present application, the test tank (II) is provided with an openable upper cover (7), the upper cover is provided with an exhaust port (7a) and a reserved interface (7b) connected to the real-time monitoring module (III), the lower edge of the cover is provided with a sealing rubber strip (7c), and the surrounding is provided with a pressurized sealing buckle (7d).

[0015] According to some embodiments of the present application, the first side of the test tank (II) is provided with a water inlet (8) connected to the sample storage tank (I), and the second side opposite to the first side is provided with three water outlets (9) connected to the collection container (IV), respectively used to obtain upper, middle and bottom liquid samples. The water inlets and outlets are connected in series with water flow stop valves (4) and flow meters (5), and the bottom is provided with a drainage and desilting port (10).

[0016] According to some embodiments of the present application, the real-time monitoring module (III) comprises a liquid pH probe, a turbidity monitoring probe or a temperature probe and other real-time monitoring components, the monitoring probe and other devices are fixed by a shell, and a sealing rubber strip is arranged at the fixing position, and the upper lead of the monitoring module is connected with the host of the corresponding device.

[0017] According to some embodiments of the present application, the collection container (IV) is provided with a sealing cover (11) at the upper portion, and the sealing cover is provided with a water inlet (11a) which is connected with the water outlet (9) of the test box (II).

[0018] The second aspect of the present application provides a method for measuring the influence of rock on the change of components in a water sample, and the method comprises testing the influence of a rock sample on the change of components in a water sample by using the device of the first aspect.

[0019] According to some embodiments of the present application, the method comprises the following steps:

[0020] Step A, providing a rock sample and a water sample containing a component to be tested;

[0021] Step B, passing the water sample containing the component to be tested into the device without placing the rock sample for testing;

[0022] Step C, placing the rock sample into the device, and passing the same water sample into the device with the rock sample for testing;

[0023] Step D, calculating the influence of the rock sample on the change of the component to be tested in the water sample according to the test results of steps B and C.

[0024] According to some embodiments of the present application, the step B comprises the following steps:

[0025] Step B-1, passing the water sample containing the component to be tested into the sample storage box (I), and mixing the water sample uniformly by using the stirring device (6);

[0026] Step B-2, passing the water sample mixed uniformly in step B-1 into the test box (II), and standing for a first time, and the volume of the water sample injected into the test box (II) is recorded as V;

[0027] Step B-3, passing all the water sample after standing in step B-2 from the water outlet (9) of the test box (II) into the collection container (IV), and detecting the component to be tested, and the detection value is recorded as S 2B ;

[0028] Step B-4, cleaning the test box (II) after being emptied by using a cleaning liquid, and detecting the component to be tested after the cleaning liquid is discharged from the water outlet (10), and the detection value is recorded as S 3BThe volume of the cleaning fluid is denoted as V. 洗B .

[0029] According to some embodiments of the present invention, step C includes the following steps:

[0030] Step C-0: Place the rock sample into the test chamber (II), and record the mass of the rock sample as M1;

[0031] Step C-1: Pass the water sample containing the analyte, which is the same as in step B-1, into the sample storage tank (I), and use a stirring device (6) to mix the water sample evenly.

[0032] Step C-2: The water sample that has been mixed evenly in step C-1 is passed into the test chamber (II) and left to stand for a first time. The volume of the water sample injected into the test chamber (II) is recorded as V.

[0033] Step C-3: After settling in step C-2, all the water samples are introduced into the collection container (IV) through the outlet (9) of the test chamber (II) for the detection of the analyte. The detected value is recorded as S. 2C ;

[0034] Step C-4: Remove the rock sample from the test chamber (II), test the mass of the rock sample, and record it as M2;

[0035] Step C-5: Clean the drained test chamber (II) with cleaning solution. After the cleaning solution is discharged from the outlet (10), the component to be tested is detected, and the detected value is recorded as S. 3C The volume of the cleaning fluid is denoted as V. 洗C .

[0036] The detection value S described in this invention 2B This refers to the detected values ​​of all the components to be tested in the water sample, i.e., S. 2B This includes multiple values. Similarly, S 2C S 3C and S 3B It also includes multiple values.

[0037] According to some embodiments of the present invention, the influence of the rock sample on the changes in the analyte components in the water sample includes the influence of the rock sample mass on the changes in the analyte components in the water sample and the influence of the spatial structure of the rock sample on the changes in the analyte components in the water sample, wherein...

[0038] The total influence of the rock sample on the changes in the analyte in the water sample is calculated according to formula (1):

[0039] S R =S 2B -S 2C Equation (1);

[0040] According to formula (2), the influence of the rock sample block on the change of the to-be-tested component in the water sample is calculated:

[0041] S Ra = (M1-M2) / V Formula (2);

[0042] According to formula (3), the influence of the spatial structure of the rock sample on the change of the to-be-tested component in the water sample is calculated:

[0043] S Rf = (M1-M2) / V Formula (2); 3B V 洗B -S 3C V 洗C ) / V Formula (3);

[0044] Among them, the to-be-tested component includes one or more of suspended solids, inorganic salts and organic matter.

[0045] According to some embodiments of the present application, the rock sample is selected from a rock block sample, a crushed rock sample and a sample formed by stacking rock fragments and artificial fragments.

[0046] According to some embodiments of the present application, the water sample containing the to-be-tested component includes a natural water sample, or a prepared water sample, which can be a liquid sample formed by adding specific components to distilled water and uniformly mixing, wherein the specific components include but are not limited to insoluble solids, characteristic ionic salts, microorganisms and organic matter, etc.

[0047] According to some embodiments of the present application, the to-be-tested component includes one or more of suspended solids content, water hardness and specific salt content.

[0048] According to some embodiments of the present application, the to-be-tested component in formula (3) above is water-insoluble matter, including but not limited to solid suspended solids and organic matter, etc.

[0049] According to some embodiments of the present application, the size of the rock sample is greater than 0 and less than 100 mm. In actual tests, it can be routinely selected according to actual research needs.

[0050] According to some embodiments of the present application, the first time can be routinely selected according to actual research needs.

[0051] According to some embodiments of the present application, the volume V of the water sample can be routinely selected according to actual research needs, but it is necessary to ensure that the water volume of the water sample is sufficient, so that the water sample can cover the rock sample in the test box (II) as a basic requirement.

[0052] In some preferred embodiments of the present application, the method comprises the following specific steps:

[0053] Step A: providing rock samples and water samples containing components to be tested;

[0054] Step A-01: preparation of the rock samples, after washing the rock samples with distilled water, drying is performed, preferably, if the rock sample is gypsum rock, the drying temperature used is 45-50℃, and for other types of rock samples, the drying temperature used is 105-110℃, the drying time is 20-30h; measuring the dry weight and volume of the rock block, calculating the bulk density; storing all rock blocks in a dry sealed box;

[0055] Step A-02: preparation of the water sample containing components; if the water sample is a natural water sample, a portion of the sample is taken for target component content testing after ensuring uniform mixing of the sample, the target component content testing includes liquid pH determination, liquid suspended matter measurement (in accordance with GB11901), water hardness measurement (GB / T 6909) or specific salt content measurement (GB / T 5750.5) and other items, after measurement, the remaining water sample is stored in a dry sealed container and stored at a constant temperature for subsequent test use;

[0056] If the water sample is a prepared water sample, one or more components are mixed into distilled water, after thorough mixing, the upper uniform mixed liquid is taken, a portion of the water sample is subjected to target component content testing, and the remaining water sample to be tested is stored in a dry sealed container and placed in a constant temperature place for subsequent test use; the component-containing water sample should be thoroughly mixed before use.

[0057] Step B: passing the water sample containing the component to be tested into the device without placing the rock sample

[0058] Step B-01: open the water inlet (1) valve and exhaust port (2) of the water storage tank (I), close the other water outlet (3) valve, inject the water sample into the sample storage tank, record the water sample volume V1 in the water storage tank, start the stirring device (6) to keep the water sample uniformly mixed for subsequent test use;

[0059] Step B-02: seal the test tank (II) top cover (7) without placing the rock sample, open the exhaust port (7a), close the water outlet (7b), open the water storage tank valve to inject the test water sample into the test tank, record the water sample scale V2 in the water storage tank, close the exhaust port (7a), and place the water sample in the test tank according to the first selected time;

[0060] Step B-03: after the first selected time ends, open the test tank (II) exhaust port (7a), open the water outlet, store the test end water sample in the collection container (IV);

[0061] Step B-04: Take the water sample in the collection container (IV) to test the target component content, recorded as S 2B Preferably, the target component content test includes liquid pH value determination, liquid suspended substance measurement (according to GB11901), water sample hardness measurement (GB / T 6909) or specific salt content measurement (GB / T 5750.5) and the like.

[0062] Step B-05: Clean the test tank (II), close the inlet and outlet valves, keep the lower drainage silt outlet (10) open, clean the test tank with distilled water, collect and record the volume V of the liquid in the drainage outlet 洗B and target component measurement, recorded as S 3B . Preferably, the target component content test includes liquid pH value determination, liquid suspended substance measurement (according to GB11901), water sample hardness measurement (GB / T 6909) or specific salt content measurement (GB / T 5750.5) and the like.

[0063] Step C: Put the rock sample into the device, and pass the same water sample as in step B into the device with the rock sample to test

[0064] Step C-01: Open the water inlet (1) valve and the air outlet (2) of the water storage tank (I), close the other water outlet (3) valve, pour the water sample into the storage tank, record the volume V1 of the water sample in the tank, start the stirring device (6) to keep the water sample uniformly mixed, and prepare for subsequent test;

[0065] Step C-02: Weigh the rock sample, put it into the test tank (II) according to the selected size, record the total weight M1 of the rock sample in the test tank, tightly seal the test tank top cover (7), open the air outlet (7a), close the water outlet (7b), open the water storage tank valve to pour the test water sample into the test tank, record the water sample scale V2 in the water storage tank, close the air outlet (7a), and let the water sample stand in the test tank according to the first selected time;

[0066] Step C-03: When the first selected time ends, open the air outlet (7a) of the test tank (II), open the water outlet, and store the test end water sample into the collection container (IV);

[0067] Step C-04: Take the water sample in the collection container (IV) to test the target component content, recorded as S 2C Preferably, the target component content test includes liquid pH value determination, liquid suspended substance measurement (according to GB11901), water sample hardness measurement (GB / T 6909) or specific salt content measurement (GB / T 5750.5) and the like.

[0068] Step C-05: Take the rock sample from the test chamber (II), dry and weigh it, record the total dry weight of the rock sample after the test M2, and perform other types of tests on the rock sample after the test as needed;

[0069] Step C-06: Clean the test chamber (II), close the inlet and outlet valves, keep the lower drainage valve open, and clean the test chamber with distilled water. The liquid in the drainage valve can be collected and recorded according to the test design requirements 洗C And the target component measurement is denoted as S 3c . Preferably, the target component content detection includes performing liquid pH measurement, liquid suspended matter measurement (according to GB11901), water hardness measurement (GB / T 6909), or specific salt content measurement (GB / T 5750.5), etc.

[0070] Step D, according to the test results in steps B and C, calculate the effect of the rock sample on the change of the component in the water sample

[0071] By measuring the specific parameters in the water sample before the test, the water sample after the test, the rock sample, and the cleaning liquid, the effect value of the rock sample on the change of the specific component in the water sample is calculated, and the content change relationship of a component in a single test is:

[0072] S R = S 2B -S 2C

[0073] Where S R is the total effect value of the rock sample on the change of the component in the water sample, S 2B is the detection value obtained by detecting the component in the water sample after standing in step B-2 and passing through the outlet (9) of the test chamber (II) into the collection container (IV); S 2C is the detection value obtained by detecting the component in the water sample after standing in step C-2 and passing through the outlet (9) of the test chamber (II) into the collection container (IV);

[0074] S Ra = (M1-M2) / V

[0075] Where S Ra is the effect value of the rock sample block on the change of the component in the water sample, M1 is the total dry weight of the rock sample placed in the test chamber (II); M2 is the total dry weight of the rock sample after the test taken out of the test chamber (II); Where V = V1-V2, V is the volume of the water sample injected into the test chamber (II), V1 is the volume of the component-containing water sample in the liquid storage tank (I) before the test; V2 is the remaining water sample volume in the sample storage tank after the component-containing water sample is injected into the test chamber in step B or C;

[0076] S Rf =(S 3B V 洗B -S 3C V 洗C ) / V

[0077] Among them, S Rf S represents the influence of the spatial structure of the rock sample on the variation of the analyte in the water sample. 3B The test chamber (II) is cleaned and emptied using a cleaning solution. After the cleaning solution is discharged from the outlet (10), the test value of the component to be tested is obtained. 洗B S is the volume of the cleaning solution; 3C The test chamber (II) is cleaned and emptied using a cleaning solution. After the cleaning solution is discharged from the outlet (10), the test value of the component to be tested is obtained. 洗C V is the volume of the cleaning solution, and V is the volume of the water sample injected into the test chamber (II).

[0078] According to the present invention, during the experiment, the spatial structure of the accumulated rocks in the test chamber has a certain influence on the analyte components in the water sample. For example, when the water sample flows through the test device, the spatial structure formed by the rock accumulation will generate a certain resistance to the suspended matter in the water sample, causing the suspended matter to settle and deposit in the spatial structure of the rocks. Therefore, the test device plays a certain role in removing suspended matter from the water sample. In order to measure the influence of the rock spatial structure on the analyte components in the water sample, it is necessary to quantify the suspended matter content in the spatial structure. That is, during the process of removing the rocks, the suspended matter deposited in the spatial structure will remain in the test chamber, and can be calculated after cleaning the test chamber. Accordingly, S 3B V 洗B This indicates the analyte contained in the cleaning solution obtained from cleaning the test chamber when no rock sample is placed inside; S 3C V 洗C This indicates the analyte contained in the cleaning solution obtained after cleaning the test chamber following the placement of the rock sample; S 3B V 洗B With S 3C V 洗C The absolute value of the difference is the amount of change in the analyte group in the water sample caused by the spatial structure of the rock.

[0079] The third aspect of the present invention provides the application of the apparatus described in the first aspect or the method described in the second aspect in measuring the influence of rocks on the compositional changes of water samples in underground reservoirs, especially coal mine underground reservoirs.

[0080] The beneficial effects of this invention are at least in the following aspects:

[0081] (1) The present application can test the influence degree of rock mass blockiness, structure distribution, action time and other influencing factors on the water quality of underground reservoir.

[0082] (2) The device can obtain accurate data, and the test data can quantitatively reveal the influence of rock mass in underground reservoir on water quality index of water storage.

[0083] (3) The present application first uses a test device to quantitatively study the influence of underground reservoir on water quality.

[0084] (4) The measuring method adopted by the present application is simple to operate and the result is reliable. BRIEF DESCRIPTION OF DRAWINGS

[0085] Figure 1 is a process flow chart of an embodiment of the present application.

[0086] Figure 2 is a schematic diagram of the device of the present application, wherein

[0087] (I) is a sample storage box, 1 is a water inlet, 2 is an exhaust port, 3a-3c are water outlets, 4 is a water flow stop valve, 5 is a flow meter, 6 is an agitating device 6;

[0088] (II) is a test box, 7 is an upper cover, 7a is an exhaust port, 7b is a reserved interface, 7c is a sealing rubber strip, 7d is a pressure sealing buckle, 8 is a water inlet, 9 is a water outlet, 10 is a drainage and desilting port;

[0089] (III) is a real-time monitoring module;

[0090] (IV) is a collection container, 11 is a sealing cover, 11a is a water inlet, 11b is an exhaust port. DETAILED DESCRIPTION

[0091] The present application will be described in detail below by way of examples, but the scope of protection of the present application is not limited to the following description.

[0092] In the examples, the specific conditions not specified are carried out according to the conventional conditions or the conditions recommended by the manufacturer. The reagents or instruments used are not specified by the manufacturer, and are conventional products that can be obtained by market purchase.

[0093] Example 1

[0094] After building an experimental system like Figure 2 in the laboratory, the following steps are used to start measuring the influence of rock on the change of suspended solids content in water samples.

[0095] Step A: Test sample preparation

[0096] Step A-01: Take the rock from the Daliuta mine in Shendong mining area, continuously soak it in distilled water for 48 hours, then rinse it to remove the influence of soluble salts, and then dry it in an oven at 50°C for 24 hours. Select rocks with a size of 3-50 mm in diameter from the above treated rocks as test samples, with a mass of 1000g, and store the test samples in a dry sealed box for use;

[0097] Step A-02: Take 1g of coal powder and mix it into 1L of distilled water, mix well to obtain a suspension with a content of 1000mg / L, and store the water sample in a dry sealed container for later use; the component water sample should be mixed well before use.

[0098] Step B: Use the test device without filling the rock sample to measure the change in the suspended solids content of the water sample, i.e. pass the water sample containing the component to be tested into the device without placing the rock sample for testing;

[0099] Step B-01: Open the water inlet (1) valve and exhaust port (2) of the water storage tank (I), close the other water outlet (3) valve, pour the water sample into the sample storage tank, record the water sample scale V1 in the tank as 1L, start the stirring device (6) to keep the water sample mixed uniformly;

[0100] Step B-02: Seal the top cover (7) of the test tank (II) without placing the rock sample, open the exhaust port (7a), close the water outlet (7b), open the water storage tank valve to pour the test water sample into the test tank, record the water sample scale V2 in the water storage tank as 500mL, close the exhaust port (7a), and let the water sample stand in the test tank for 24 hours.

[0101] Step B-03: After 24 hours, open the exhaust port (7a) of the test tank (II), open the water outlet, and store the test end water sample in the collection container (IV);

[0102] Step B-04: Take the water sample from the collection container (IV) to measure the suspended solids content in the liquid, and the suspended solids content S 2B is 100mg / L;

[0103] Step B-05: Clean the test tank (II), close the inlet and outlet valves, keep the lower drainage port open, clean the test tank with distilled water, collect the liquid from the drainage port, and obtain 1L of cleaning liquid, denoted as V 洗B ; the suspended solids content in the cleaning liquid is S 3B 900mg / L.

[0104] Step C: Measure the influence of rock sample on the change of suspended solids in water sample, i.e. put the rock sample into the device, and pass the same water sample in step B into the device with the rock sample to test;

[0105] Step C-01: Open the water inlet (1) valve and air outlet (2) of the water storage tank (I), close other water outlet (3) valves, inject the water sample into the sample storage tank, record the water sample scale in the tank as V1=1L, start the stirring device (6) to keep the water sample uniformly mixed;

[0106] Step C-02: Put M1=1000g of rock sample into the test tank (II), tightly seal the test tank top cover (7), open the air outlet (7a), close the water outlet (7b), open the water storage tank valve to inject the test water sample into the test tank, record the water sample scale in the water storage tank as V2=500mL, close the air outlet (7a), and let the water sample stand in the test tank for 24 hours;

[0107] Step C-03: After 24 hours, open the air outlet (7a) of the test tank (II), open the water outlet, and store the test end water sample into the collection container (IV);

[0108] Step C-04: Take the water sample in the collection container (IV) to measure the suspended solids in the liquid, and the suspended solids content S 2C is 50mg / L;

[0109] Step C-05: Take the rock sample in the test tank (II), dry and weigh it in sequence, and the total dry weight of the rock sample after the test is M2=1000.01g;

[0110] Step C-06: Clean the test tank (II), close the water inlet and outlet valves, keep the lower water drainage and desilting port open, and clean the test tank with distilled water to obtain V4=1L of cleaning liquid, which is recorded as V 洗C ; The suspended solids content in the cleaning liquid is S 3C 940mg / L.

[0111] Step D: Measure the influence of the rock sample on the change of the suspended solids content in the water sample; by determining the specific parameters of the water sample before the test, the water sample after the test, the rock sample, and the cleaning liquid, calculate the influence value of the rock sample on the change of the suspended solids content in the water sample.

[0112] The purification effect of the rock sample on the suspended solids in the water sample is:

[0113] S R =S 2B -S 2C =100-50=50mg / L

[0114] The rock sample block has the following purification effect on the suspended matter in the water sample:

[0115] S Ra = (M1-M2) / (V1-V2) = [(1000.01-1000) x 1000] / (1-0.5) = 20 mg / L

[0116] The rock sample space structure (fracture, void) has the following purification effect on the suspended matter in the water sample:

[0117] S Rf = (S 3B V 洗B -S 3C V 洗C ) / (V1-V2) = (900 x 1-940 x 1) / (1-0.5) = -80 mg / L

[0118] The numerical value is negative, indicating that the rock sample space structure is beneficial to remove the suspended matter content in the water sample, and the larger the absolute value, the more obvious the removal effect.

[0119] It should be noted that the above-described embodiments are only used to explain the present application and do not constitute any limitation on the present application. The present application is described by referring to typical embodiments, but it should be understood that the words used therein are descriptive and explanatory words, rather than limiting words. The present application can be modified as specified within the scope of the claims of the present application, and the present application can be revised without departing from the scope and spirit of the present application. Although the present application described therein relates to specific methods, materials and embodiments, it does not mean that the present application is limited to the specific examples disclosed therein, on the contrary, the present application can be extended to all other methods and applications with the same function.

Claims

1. A method for measuring the influence of rocks on changes in water components, comprising using an apparatus for measuring the influence of rocks on changes in water components to test the influence of rock samples on changes in analytes in water samples, said apparatus comprising a sample storage tank (I), a test chamber (II), and a collection container (IV) connected in sequence, wherein, The sample storage box (I) is used to store water samples; the test chamber (II) is used to provide a place for placing rocks and for the rocks to come into contact with the water samples; the collection container (IV) is used to collect water samples from the test chamber (II); The method includes the following steps: Step A: Provide a rock sample and a water sample containing the analyte; Step B: Pass the water sample containing the component to be tested into the device without the rock sample for testing; Step C: Place the rock sample into the device and pass the same water sample as in Step B into the device containing the rock sample for testing. Step D: Based on the test results in Steps B and C, calculate the influence of the rock sample on the changes in the components to be tested in the water sample; Step B includes the following steps: Step B-1: Pass the water sample containing the component to be tested into the sample storage tank (I) and use the stirring device (6) to mix the water sample evenly; Step B-2: Pass the water sample that has been mixed evenly in step B-1 into the test chamber (II), let it stand for a first time, and record the volume of the water sample injected into the test chamber (II) as V; Step B-3: After settling in step B-2, all the water samples are introduced into the collection container (IV) through the first outlet (9) on the side wall of the test chamber (II) for the detection of the analyte. The detected value is recorded as S. 2B ; Step B-4: Clean the drained test chamber (II) with cleaning solution. After the cleaning solution is discharged from the second outlet (10) at the bottom of the test chamber (II), the component to be tested is detected, and the detected value is recorded as S. 3B The volume of the cleaning fluid is denoted as V. 洗B ; Step C includes the following steps: Step C-0: Place the rock sample into the test chamber (II), and record the mass of the rock sample as M1; Step C-1: Pass the water sample containing the analyte, which is the same as in step B-1, into the sample storage tank (I), and use a stirring device (6) to mix the water sample evenly. Step C-2: Pass the water sample that has been mixed evenly in step C-1 into the test chamber (II), let it stand for a first time, and record the volume of the water sample injected into the test chamber (II) as V; Step C-3: After settling in step C-2, all the water samples are introduced into the collection container (IV) through the first outlet (9) on the side wall of the test chamber (II) for the detection of the analyte. The detected value is recorded as S. 2C ; Step C-4: Remove the rock sample from the test chamber (II), test the mass of the rock sample, and record it as M2; Step C-5: Clean the drained test chamber (II) with cleaning solution. After the cleaning solution is discharged from the second outlet (10) at the bottom of the test chamber (II), the component to be tested is detected, and the detected value is recorded as S. 3C The volume of the cleaning fluid is denoted as V. 洗C ; The influence of the rock sample on the changes in the analytes in the water sample includes the influence of the rock sample mass on the changes in the analytes in the water sample and the influence of the spatial structure of the rock sample on the changes in the analytes in the water sample. The total influence of the rock sample on the changes in the analyte in the water sample is calculated according to formula (1): S R =S 2B - S 2C Equation (1); The effect of the rock sample block on the changes of the analyte in the water sample is calculated according to formula (2): S Ra =(M1-M2) / V (2); The effect of the spatial structure of the rock sample on the changes of the analyte in the water sample is calculated according to formula (3): S Rf = (S 3B V 洗B - S 3C V 洗C ) / V formula (3); The components to be tested include one or more of suspended solids, inorganic salts, and organic matter.

2. The method according to claim 1, characterized in that, At least one first water outlet (9) is provided on the side wall of the test chamber (II).

3. The method according to claim 2, characterized in that, The test chamber (II) has three first water outlets (9) on its side wall.

4. The method according to any one of claims 1-3, characterized in that, The device also includes a real-time monitoring module (III); The sample storage box (I) is connected to the test chamber (II), the test chamber (II) is connected to the collection container (IV), and a real-time monitoring module (III) is connected to the test chamber (II). The sample storage box (I) is equipped with a stirring device (6).

5. The method according to claim 4, characterized in that, The first outlet (9) on the side wall of the test chamber (II) is connected to the collection container (IV).

6. The method according to any one of claims 1-3, characterized in that, The rock sample had a block size greater than 0 and less than 100 mm.

7. The method according to any one of claims 1-3, characterized in that, The rock samples were selected from rock block samples, broken rock samples, and samples composed of rock fragments and artificial fragments. And / or the components to be tested include one or more of suspended solids content, water hardness, and specific salt content.

8. The application of the method according to any one of claims 1-7 in measuring the influence of rocks on the compositional changes of water samples in an underground reservoir.

9. The application according to claim 8, characterized in that, The method described is applied to measuring the influence of rocks on the compositional changes of water samples in underground coal mine reservoirs.

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