Coal rock porosity testing device under simulated formation conditions

Abstract

The application discloses a coal rock porosity testing device under simulated formation conditions, which comprises a coal rock input conveying belt horizontally placed on a horizontal plane, a three-dimensional scanner fixedly assembled on the upper surface of the input end of the coal rock input conveying belt, a coal rock regularizing assembly fixedly arranged at the output end of the coal rock input conveying belt, a coal rock transfer conveying belt fixedly arranged at the other end of the coal rock regularizing assembly, a coal rock processing and testing assembly fixedly arranged at the other end of the coal rock transfer conveying belt, the coal rock processing and testing assembly being fixedly assembled on the inner wall of the bottom of a protective shell, and the protective shell being vertically arranged on the horizontal plane; and a coal rock output conveying belt fixedly arranged on the upper end of the side surface of the coal rock processing and testing assembly close to the coal rock transfer conveying belt.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of coal rock simulation testing, and particularly relates to a coal rock porosity testing device simulating stratum conditions. BACKGROUND

[0002] Porosity is the ratio of rock pore volume to rock surface volume, is an important parameter for evaluating reservoir characteristics, and is an important factor affecting reservoir oil storage capacity, permeability and other characteristics. Through testing, the concept and physical meaning of coal rock porosity can be deeply understood, basic data for subsequent geological exploration and development can be provided, the relationship between porosity and characteristics can be studied, and scientific basis for reservoir evaluation and oil reservoir management can be provided, so that the oil storage capacity and permeability and other characteristics of the reservoir can be accurately evaluated, the efficiency and success rate of oil and gas exploration can be improved, and a more reasonable oil and gas development plan can be made, including optimization of drilling, oil extraction, water injection and other process parameters, so that the benefit of oil and gas development can be improved. And the porosity test can also provide basis for safety evaluation in the process of oil and gas production. For example, by understanding the porosity and permeability and other characteristics of coal rock, the change of stratum pressure, fluid flow law and the like can be predicted, so that corresponding safety measures can be taken to ensure the safe production of oil and gas.

[0003] When testing, coal rock samples under simulated stratum conditions are needed. However, when collecting coal rock samples, the collected coal rock samples are usually irregular in shape due to the uncertainty of underground conditions, and therefore need to be processed. The existing device usually processes coal rock according to a unified standard, and this processing method is easy to cause excessive processing of the coal rock sample, thereby causing damage to the coal rock sample, and further affecting the testing efficiency and increasing the testing cost. At the same time, the traditional testing device occupies a large area, and is easy to cause secondary pollution in the processing process, thereby affecting the accuracy of the test results.

[0004] Therefore, it is necessary to provide a coal rock porosity testing device simulating stratum conditions to solve the above problems. SUMMARY

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme, a coal rock porosity testing device simulating stratum conditions, comprising:

[0006] The coal rock input conveying belt is horizontally placed on a horizontal plane, a three-dimensional scanner is fixedly assembled on the upper surface of the input end of the coal rock input conveying belt, a coal rock regularizing assembly is fixedly arranged at the output end of the coal rock input conveying belt, the other end of the coal rock regularizing assembly is fixedly arranged with a coal rock transfer conveying belt, the other end of the coal rock transfer conveying belt is fixedly arranged with a coal rock processing and testing assembly, the coal rock processing and testing assembly is fixedly assembled on the inner wall of the bottom of the protective shell, and the protective shell is vertically arranged on the horizontal plane.

[0007] The coal rock output conveyor belt is fixedly arranged on the upper end of the side of the coal rock processing test component close to the coal rock transfer conveyor belt.

[0008] Furthermore, preferably, the coal rock input conveyor belt and the coal rock transfer conveyor belt are both retractable conveyor belts, and the retractable directions of both are directed towards the coal rock regularization assembly.

[0009] Furthermore, preferably, the coal rock structured assembly includes:

[0010] A fixed support frame, the lower surface of which is fixedly equipped with four adjustable movable feet;

[0011] A three-axis drive group is fixedly mounted on the upper surface of the fixed support frame, and a face milling cutter is fixedly mounted on the vertical drive shaft of the three-axis drive group;

[0012] The coal rock flipping assembly is fixedly assembled on the lower surface of the three-axis drive group, and a coal dust collection pool is arranged directly below the coal rock flipping assembly. The coal dust collection pool is slidably arranged on the inner wall of the bottom of the fixed support frame, and the fixed support frame is provided with a first opening and closing door in the sliding direction of the coal dust collection pool.

[0013] Furthermore, preferably, the coal rock turning assembly includes:

[0014] Two fixed frames are provided in mirror image and are fixedly provided on the lower surface of the three-axis drive group. A first drive motor is embedded in each fixed frame. A rotating arc block is fixedly assembled on the output shaft of each first drive motor. The two rotating arc blocks are provided in mirror image and a first hydraulic cylinder is fixedly assembled at the adjacent ends of the two rotating arc blocks. A first flexible clamp is fixedly assembled at the piston end of the first hydraulic cylinder.

[0015] The second drive motor is fixedly assembled at the middle of the inner arc surface of the rotating arc block, and a second hydraulic cylinder is fixedly assembled on the output shaft of the second drive motor, and a second flexible clamper is fixedly assembled on the piston end of the second hydraulic cylinder.

[0016] Furthermore, preferably, the coal rock processing test assembly includes:

[0017] A lifting drive assembly is fixedly mounted on the inner wall of the bottom of the protective shell, and a temperature controller and a pressure regulator are fixedly mounted on the lower right surface of the lifting drive assembly;

[0018] The closed shell is vertically fixed on the inner wall of the bottom of the protective shell, and the closed shell is in contact with the lifting drive assembly. The right side of the closed shell is sequentially embedded with an oil washing treatment group, a dryer, a humidity processor and a porosity measurement assembly from bottom to top.

[0019] Furthermore, preferably, the lifting drive assembly includes:

[0020] A fixed bracket, fixedly assembled on the inner wall of the bottom of the protective shell;

[0021] The third hydraulic cylinder is fixedly mounted on the inner wall of the bottom of the protective shell. The upper end surface of the fixed bracket and the piston end of the third hydraulic cylinder are both fixedly mounted with pulley blocks. A driving belt is mounted on the two pulley blocks. One end of the driving belt is fixed to the lower surface of the upper end of the fixed bracket, and the other end is fixedly mounted with a sliding group. The sliding group is slidably mounted on a fixed rail. The fixed rail is vertically fixedly mounted on the right side of the fixed bracket, and an open coal and rock processing bin is fixedly mounted on the sliding group.

[0022] There are two lifting limiters, which are mirror-imaged and fixedly arranged at both ends of the fixed track.

[0023] Furthermore, preferably, the open coal and rock processing bin includes:

[0024] A three-sided fixed shell is fixedly assembled on the sliding group, and four telescopic columns are vertically fixedly assembled on the inner wall of the upper end of the three-sided fixed shell, and the other ends of the four telescopic columns are fixedly assembled with adjustment plates;

[0025] The second opening and closing door is rotatably arranged on the front side of the upper end of the three-sided fixed shell, and an automatic opener and closer is fixedly assembled on the upper surface of the three-sided fixed shell, and the other end of the automatic opener and closer is fixedly assembled on the second opening and closing door.

[0026] Furthermore, preferably, the three-sided fixed shell, the second opening and closing door in the closed state, and the closed shell constitute a closed space, and sliding sealing strips are provided at the connections between the three-sided fixed shell and the closed shell.

[0027] Furthermore, as a preference, the enclosed space formed by the three-sided fixed shell and the second opening and closing door in the closed state and the enclosed shell in the lifting state is divided into an oil washing area, a drying area, a humidity control area, and a testing area.

[0028] Compared with the prior art, the present invention provides a coal rock porosity testing device under simulated formation conditions, which has the following beneficial effects:

[0029] In the present invention, after the collected coal rock samples are placed on the coal rock input conveyor belt, the three-dimensional scanner will perform a three-dimensional scan on the samples to evaluate them (whether they can be milled to a size that meets the test requirements), and remove the coal rock samples that fail the evaluation, so as to avoid unnecessary work and improve processing efficiency. At the same time, from a three-dimensional perspective, the milling position and angle can be planned for the coal rock samples that pass the evaluation while performing the three-dimensional scanning, so as to effectively process the unqualified products in the traditional milling processing mode and further save costs.

[0030] In the present invention, the coal rock flipping assembly provided on the coal rock regularization assembly can arbitrarily adjust the clamping position of the coal rock sample by adjustment, so that the face milling cutter can perform milling work according to the position and angle planned by the three-dimensional scanner under the adjustment of the three-axis drive assembly, thereby qualifying the coal rock samples that are unqualified in the traditional milling mode, thereby reducing costs and improving testing efficiency to a certain extent.

[0031] In the present invention, the three-sided fixed shell of the coal rock processing test component and the second opening and closing door in the closed state form a closed space for testing with the closed shell in the lifting state. At the same time, the relative position of the closed space is changed by lifting, so that it can be in contact with different components, and then further divided into four areas: the oil washing area corresponding to the oil washing treatment group, the drying area corresponding to the dryer, the humidity control area corresponding to the humidity processor, and the measurement area corresponding to the porosity measurement component. The oil washing area, the drying area, and the humidity control area are used for further processing of the coal rock samples, and the temperature controller and the pressure controller can be appropriately adjusted during the processing to improve the processing efficiency. When entering the measurement area, the temperature controller and the pressure controller will further adjust the parameters to simulate the temperature and pressure of the underground to further ensure the accuracy of the test results. Then, according to the measurement data, the porosity of the coal rock is calculated using the corresponding mathematical model and algorithm. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Fig. 1 This is a schematic diagram of the structure of a coal rock porosity testing device under simulated formation conditions;

[0033] Fig. 2 This is a schematic diagram of the structure of coal rock regular components;

[0034] Fig. 3 This is a schematic diagram of the coal rock flip assembly structure;

[0035] Fig. 4 This is a schematic diagram of the structure of the coal and rock processing test assembly;

[0036] Fig. 5 This is a schematic diagram of the lifting drive component structure;

[0037] Fig. 6 This is a schematic diagram of the structure of an open coal and rock processing warehouse;

[0038] In the figure: 1. Coal rock input conveyor belt; 2. 3D scanner; 3. Coal rock regularization assembly; 4. Coal rock transfer conveyor belt; 5. Coal rock processing test assembly; 6. Protective shell; 31. Fixed support frame; 32. Adjustable moving foot; 33. Three-axis drive group; 34. Face milling cutter; 35. Coal rock turning assembly; 36. Coal dust collection tank; 37. First opening and closing door; 351. Fixed frame; 352. First drive motor; 353. Rotating arc block; 354. Second drive motor; 355. First hydraulic cylinder; 356. Second hydraulic cylinder; 357. First flexible clamp; 358. Second flexible clamp; 51 , lifting drive assembly; 52, temperature controller; 53, pressure regulator; 54, closed shell; 55, oil washing treatment group; 56, dryer; 57, humidity processor; 58, porosity measurement assembly; 511, fixed bracket; 512, third hydraulic cylinder; 513, pulley group; 514, drive belt; 515, fixed track; 516, sliding group; 517, open coal and rock processing bin; 518, lifting limiter; 5171, three-sided fixed shell; 5172, telescopic column; 5173, adjustment plate; 5174, sliding sealing strip; 5175, second opening and closing door; 5176, automatic opener and closer. DETAILED DESCRIPTION

[0039] See also Figs. 1-6 The present invention provides a coal rock porosity testing device under simulated formation conditions, comprising:

[0040] A coal rock input conveyor belt 1 is placed horizontally on a horizontal plane, with a three-dimensional scanner 2 fixedly mounted on the upper surface of its input end. A coal rock sorting assembly 3 is fixedly mounted on the output end of the coal rock input conveyor belt 1, and a coal rock transfer conveyor belt 4 is fixedly mounted on the other end of the coal rock sorting assembly 3. A coal rock processing and testing assembly 5 is fixedly mounted on the other end of the coal rock transfer conveyor belt 4. The coal rock processing and testing assembly 5 is fixedly mounted on the inner wall of the bottom of a protective shell 6, and the protective shell 6 is vertically mounted on a horizontal plane.

[0041] The coal rock output conveyor belt is fixedly arranged on the upper end of the side of the coal rock processing test assembly 5 close to the coal rock transfer conveyor belt 4;

[0042] As a preferred embodiment, after the collected coal rock sample is placed on the coal rock input conveyor belt 1, the three-dimensional scanner 2 will perform a three-dimensional scan on the sample to evaluate it (whether it can be milled to a size that meets the test requirements), and remove the coal rock samples that fail the evaluation, thereby preventing unnecessary work and improving processing efficiency. At the same time, from a three-dimensional perspective, the milling position and angle can be planned for the coal rock samples that pass the evaluation while three-dimensional scanning, thereby effectively processing the unqualified products in the traditional milling processing mode, further saving costs. Then, the coal rock regularization component 3 will process according to the parameters planned by the three-dimensional scanner 2, and transport the processed coal rock sample to the coal rock processing test component 5 through the coal rock transfer conveyor belt 4. The coal rock processing test component 5 will further process the coal rock sample and test the coal rock sample. Then, based on the measurement data, the corresponding mathematical model and algorithm are used to calculate the porosity of the coal rock. Then, the tested coal rock sample leaves the device through the coal rock output conveyor belt.

[0043] Furthermore, the coal rock input conveyor belt 1 and the coal rock transfer conveyor belt 4 are both retractable conveyor belts, and the retractable directions of both are directed towards the coal rock regularization assembly 3;

[0044] As a preferred embodiment, the coal rock input conveyor belt 1 conveys the coal rock sample into the coal rock regularization component 3 by extending, and remains in an extended state when the coal rock regularization component 3 is not performing milling work, acting as a bearing platform to facilitate the clamping and angle adjustment of the coal rock sample. When the coal rock regularization component 3 is performing milling work, the coal rock input conveyor belt 1 remains retracted to prevent it from affecting the operation of the coal rock regularization component 3. After the coal rock regularization component 3 completes the milling work, the coal rock input conveyor belt 1 remains retracted, and the coal rock transfer conveyor belt 4 extends to carry the regular coal rock sample that has been milled and convey it to the coal rock processing test component 5.

[0045] Furthermore, the coal rock structured assembly 3 includes:

[0046] A fixed support frame 31, on the lower surface of which four adjustable movable feet 32 ​​are fixedly mounted;

[0047] A three-axis drive group 33 is fixedly mounted on the upper surface of the fixed support frame 31, and a face milling cutter 34 is fixedly mounted on the vertical drive shaft of the three-axis drive group 33;

[0048] A coal rock turning assembly 35 is fixedly mounted on the lower surface of the three-axis drive assembly 33, and a coal dust collection pool 36 is provided directly below the coal rock turning assembly 35. The coal dust collection pool 36 is slidably provided on the inner wall of the bottom of the fixed support frame 31, and the fixed support frame 31 is provided with a first opening and closing door 37 in the sliding direction of the coal dust collection pool 36;

[0049] As a preferred embodiment, the three-axis drive assembly 33 can drive the face milling cutter 34 to perform milling work on any horizontal plane within the sliding range, and the coal rock flipping assembly 35 can adjust the clamping position of the coal rock sample at will through adjustment, so that the face milling cutter 34 can perform milling work according to the position and angle planned by the three-dimensional scanner 2 under the adjustment of the three-axis drive assembly 33, thereby qualifying the unqualified coal rock samples in the traditional milling mode, thereby reducing costs and improving test efficiency to a certain extent. The coal dust collection pool 36 is used to collect the coal dust milled by the face milling cutter 34. At the same time, when the coal dust is collected to a certain extent, it can be taken out through the first opening and closing door 37 for processing.

[0050] Furthermore, the coal rock turning assembly 35 includes:

[0051] Two fixed frames 351 are provided in mirror images and are fixedly mounted on the lower surface of the three-axis drive group 33. A first drive motor 352 is embedded on each fixed frame 351. A rotating arc block 353 is fixedly mounted on the output shaft of each first drive motor 352. The two rotating arc blocks 353 are arranged in mirror images, and a first hydraulic cylinder 355 is fixedly mounted on the adjacent ends of the two rotating arc blocks 353. A first flexible clamp 357 is fixedly mounted on the piston end of the first hydraulic cylinder 355.

[0052] A second drive motor 354 is fixedly mounted on the middle portion of the inner arc surface of the rotating arc block 353 , and a second hydraulic cylinder 356 is fixedly mounted on the output shaft of the second drive motor 354 , and a second flexible clamper 358 is fixedly mounted on the piston end of the second hydraulic cylinder 356 ;

[0053] As a preferred embodiment, the first flexible clamper 357 and the second flexible clamper 358 are both flexible clamping systems, so irregular coal rock samples can be stably clamped by the two first flexible clampers 357 or the two second flexible clampers 358. The setting of the first hydraulic cylinder 355 and the second drive motor 354 can enable the coal rock flipping assembly 35 to clamp coal rock samples of different sizes. At the same time, the setting of the first drive motor 352 and the second drive motor 354 can enable the two first flexible clampers 357 or the two second flexible clampers 358 to rotate, and because the second drive motor 354 acts on the second flexible clamper 358 alone, the first flexible clamper 357 and the second flexible clamper 358 can both rotate relative to each other, thereby facilitating the adjustment of the clamping position and angle of the coal sample, so that the face milling cutter 34 can perform milling processing according to the planned angle and position.

[0054] Furthermore, the coal rock processing test assembly 5 includes:

[0055] A lifting drive assembly 51 is fixedly mounted on the inner wall of the bottom of the protective shell 6. A temperature controller 52 and a pressure regulator 53 are fixedly mounted on the lower right surface of the lifting drive assembly 51.

[0056] The closed shell 54 is vertically fixed on the inner wall of the bottom of the protective shell 6, and the closed shell 54 is in contact with the lifting drive assembly 51. The right side of the closed shell 54 is sequentially embedded with an oil washing treatment group 55, a dryer 56, a humidity processor 57, and a porosity measurement assembly 58 from bottom to top;

[0057] As a preferred embodiment, the oil washing treatment group 55 evaporates the organic solvent by heating, and after condensation in the condenser, it continuously produces clean solvent that drips into the coal rock sample, and then sucks the solvent that has washed the coal rock into the solvent heating chamber through siphoning. This cycle continues automatically until the crude oil in the pores of the coal rock meets the standard requirements. After the oil washing is completed, the dryer 56 will perform a closed drying treatment on the coal rock sample to remove residual solvent and moisture, and at the same time homogenize the humidity of the coal sample. The humidity processor 57 makes the dried coal rock sample reach the specified humidity. The porosity measurement component 58 measures data through a specified method and calculates the porosity of the coal rock using the corresponding mathematical model and algorithm.

[0058] Furthermore, the lifting drive assembly 51 includes:

[0059] A fixed bracket 511 is fixedly assembled on the inner wall of the bottom of the protective shell 6;

[0060] The third hydraulic cylinder 512 is fixedly mounted on the inner wall of the bottom of the protective shell 6. The upper end surface of the fixed bracket 511 and the piston end of the third hydraulic cylinder 512 are fixedly mounted with a pulley group 513. A driving belt 514 is mounted on the two pulley groups 513. One end of the driving belt 514 is fixed to the lower surface of the upper end of the fixed bracket 511, and the other end is fixedly mounted with a sliding group 516. The sliding group 516 is slidably mounted on a fixed rail 515. The fixed rail 515 is vertically fixedly mounted on the right side of the fixed bracket 511, and an open coal and rock processing bin 517 is fixedly mounted on the sliding group 516.

[0061] There are two lifting limiters 518, which are mirror-imaged and fixedly disposed at both ends of the fixed track 515;

[0062] As a preferred embodiment, the third hydraulic cylinder 512 drives the pulley group 513 fixed thereon to descend by telescoping, thereby causing the right drive belt 514 to descend, ultimately achieving the purpose of lifting and lowering the open coal and rock processing bin 517. The setting of the lifting limiter 518 can further limit the lifting range of the open coal and rock processing bin 517 to prevent it from exceeding.

[0063] Furthermore, the open coal and rock processing chamber 517 includes:

[0064] A three-sided fixed shell 5171 is fixedly assembled on the sliding assembly 516. Four telescopic columns 5172 are vertically fixedly assembled on the inner wall of the upper end of the three-sided fixed shell 5171. The other ends of the four telescopic columns 5172 are fixedly assembled with adjustment plates 5173.

[0065] The second opening and closing door 5175 is rotatably mounted on the front side of the upper end of the three-sided fixed shell 5171, and an automatic opening and closing device 5176 is fixedly mounted on the upper surface of the three-sided fixed shell 5171, and the other end of the automatic opening and closing device 5176 is fixedly mounted on the second opening and closing door 5175;

[0066] As a preferred embodiment, the automatic opener and closer 5176 can control the opening and closing of the second opening and closing door 5175. The setting of the four telescopic columns 5172 can adjust the relative position of the adjustment plate 5173 and the upper end of the three-sided fixed shell 5171, and at the same time enable the adjustment plate 5173 to apply downward pressure to the coal rock sample, thereby simulating the underground situation to the greatest extent and improving the accuracy of the test data.

[0067] Furthermore, the three-sided fixed shell 5171, the second opening and closing door 5175 in the closed state, and the closed shell 54 constitute a closed space, and sliding sealing strips 5174 are provided at the connections between the three-sided fixed shell 5171 and the closed shell 54.

[0068] Furthermore, the three-sided fixed shell 5171 and the second opening and closing door 5175 in the closed state, when in the lifting state, form a closed space with the closed shell 54, which is divided into an oil washing area, a drying area, a humidity control area, and a testing area;

[0069] As a preferred embodiment, the three-sided fixed shell 5171 and the second opening and closing door 5175 in the closed state form a closed space for testing with the closed shell 54 in the lifting state. At the same time, the relative position of the closed space can be changed by lifting and lowering, so that it can be in contact with different components, and then further divided into four areas: the oil washing area corresponding to the oil washing treatment group 55, the drying area corresponding to the dryer 56, the humidity control area corresponding to the humidity processor 57, and the measurement area corresponding to the porosity measurement component 58. The oil washing area, the drying area, and the humidity control area are used for further processing of the coal rock samples, and the temperature controller 52 and the pressure controller 53 can be appropriately adjusted during the processing to improve the processing efficiency. When entering the measurement area, the temperature controller 52 and the pressure controller 53 will further adjust the parameters to simulate the temperature and pressure underground, further ensuring the accuracy of the test results.

[0070] During specific implementation, the following steps are included: after the collected coal rock sample is placed on the coal rock input conveyor belt 1, the three-dimensional scanner 2 will perform a three-dimensional scan on the sample to evaluate it (whether it can be milled to a size that meets the test requirements), and remove the coal rock samples that fail the evaluation. At the same time, from the three-dimensional level, the milling position and angle can be planned for the coal rock samples that pass the evaluation while three-dimensional scanning, so as to effectively process the unqualified products in the traditional milling processing mode. Then, the coal rock regularization component 3 will process according to the parameters planned by the three-dimensional scanner 2, and transport the processed coal rock sample to the coal rock processing test component 5 through the coal rock transfer conveyor belt 4. The coal rock processing test component 5 will further process the coal rock sample and test the coal rock sample. Then, based on the measurement data, the corresponding mathematical model and algorithm are used to calculate the porosity of the coal rock. Then, the tested coal rock sample leaves the device through the coal rock output conveyor belt.

[0071] The above is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A coal rock porosity testing device under simulated formation conditions, characterized by: include: A coal rock input conveyor belt (1) is placed horizontally on a horizontal plane, and a three-dimensional scanner (2) is fixedly mounted on the upper surface of its input end. A coal rock regularization component (3) is fixedly mounted on the output end of the coal rock input conveyor belt (1), and a coal rock transfer conveyor belt (4) is fixedly mounted on the other end of the coal rock regularization component (3). A coal rock processing test component (5) is fixedly mounted on the other end of the coal rock transfer conveyor belt (4), and the coal rock processing test component (5) is fixedly mounted on the inner wall of the bottom of a protective shell (6), and the protective shell (6) is vertically mounted on a horizontal plane. The coal rock output conveyor belt is fixedly arranged on the upper end of the side of the coal rock processing test component (5) close to the coal rock transfer conveyor belt (4).

2. The coal rock porosity testing device under simulated formation conditions according to claim 1, characterized in that: The coal rock input conveyor belt (1) and the coal rock transfer conveyor belt (4) are both retractable conveyor belts, and the retractable directions of both are directed towards the coal rock regularization component (3).

3. The coal rock porosity testing device under simulated formation conditions according to claim 1, characterized in that: The coal rock regularization component (3) comprises: A fixed support frame (31) having four adjustable movable feet (32) fixedly mounted on its lower surface; A three-axis drive group (33) is fixedly mounted on the upper surface of the fixed support frame (31), and a face milling cutter (34) is fixedly mounted on the vertical drive shaft of the three-axis drive group (33); A coal rock turning assembly (35) is fixedly mounted on the lower surface of the three-axis drive group (33), and a coal dust collection pool (36) is provided directly below the coal rock turning assembly (35). The coal dust collection pool (36) is slidably provided on the inner wall of the bottom of the fixed support frame (31), and the fixed support frame (31) is provided with a first opening and closing door (37) in the sliding direction of the coal dust collection pool (36).

4. The coal rock porosity testing device under simulated formation conditions according to claim 3, characterized in that: The coal rock turning assembly (35) comprises: Two fixed frames (351) are arranged in mirror images and are fixedly arranged on the lower surface of the three-axis drive group (33). A first drive motor (352) is embedded in each fixed frame (351). A rotating arc block (353) is fixedly assembled on the output shaft of each first drive motor (352). The two rotating arc blocks (353) are arranged in mirror images, and the adjacent ends of the two rotating arc blocks are fixedly assembled with a first hydraulic cylinder (355). The piston end of the first hydraulic cylinder (355) is fixedly assembled with a first flexible clamper (357). A second drive motor (354) is fixedly mounted on the middle portion of the inner arc surface of the rotating arc block (353), and a second hydraulic cylinder (356) is fixedly mounted on the output shaft of the second drive motor (354), and a second flexible clamper (358) is fixedly mounted on the piston end of the second hydraulic cylinder (356).

5. The coal rock porosity testing device under simulated formation conditions according to claim 1, characterized in that: The coal rock processing test assembly (5) comprises: A lifting drive assembly (51) is fixedly mounted on the inner wall of the bottom of the protective shell (6), and a temperature controller (52) and a pressure regulator (53) are fixedly mounted on the lower right surface of the lifting drive assembly (51); The closed shell (54) is vertically fixedly mounted on the inner wall of the bottom of the protective shell (6), and the closed shell (54) is in contact with the lifting drive assembly (51). The right side of the closed shell (54) is sequentially embedded with an oil washing treatment group (55), a dryer (56), a humidity processor (57) and a porosity measurement assembly (58).

6. The coal rock porosity testing device under simulated formation conditions according to claim 5, characterized in that: The lifting drive assembly (51) comprises: A fixed bracket (511) is fixedly mounted on the inner wall of the bottom of the protective shell (6); The third hydraulic cylinder (512) is fixedly mounted on the inner wall of the bottom of the protective shell (6); the upper end surface of the fixed bracket (511) and the piston end of the third hydraulic cylinder (512) are fixedly mounted with pulley groups (513); a driving belt (514) is mounted on the two pulley groups (513); one end of the driving belt (514) is fixed to the lower surface of the upper end of the fixed bracket (511); the other end is fixedly mounted with a sliding group (516); the sliding group (516) is slidably mounted on a fixed rail (515); the fixed rail (515) is vertically fixedly mounted on the right side of the fixed bracket (511); and an open coal and rock processing bin (517) is fixedly mounted on the sliding group (516); Two lifting limiters (518) are provided in mirror image and are fixedly provided at both ends of the fixed track (515).

7. The coal rock porosity testing device under simulated formation conditions according to claim 6, characterized in that: The open coal and rock processing chamber (517) comprises: A three-sided fixed shell (5171) is fixedly assembled on the sliding group (516); four telescopic columns (5172) are vertically fixedly assembled on the inner wall of the upper end of the three-sided fixed shell (5171); and the other ends of the four telescopic columns (5172) are fixedly assembled with adjustment plates (5173); The second opening and closing door (5175) is rotatably arranged in front of the upper end face of the three-sided fixed shell (5171), and an automatic opener and closer (5176) is fixedly assembled on the upper surface of the three-sided fixed shell (5171), and the other end of the automatic opener and closer (5176) is fixedly assembled on the second opening and closing door (5175).

8. The coal rock porosity testing device under simulated formation conditions according to claim 7, characterized in that: The three-sided fixed shell (5171), the second opening and closing door (5175) in the closed state, and the closed shell (54) constitute a closed space, and sliding sealing strips (5174) are provided at the connection points between the three-sided fixed shell (5171) and the closed shell (54).

9. The coal rock porosity testing device under simulated formation conditions according to claim 8, characterized in that: The three-sided fixed shell (5171) and the second opening and closing door (5175) in the closed state, when in the lifting state, form a closed space with the closed shell (54) which is divided into an oil washing area, a drying area, a humidity control area, and a testing area.

Images