Slurry testing system of slurry shield tunneling machine

Abstract

The utility model provides a slurry shield machine slurry testing system which comprises a storage tank, a slurry pumping assembly, a slurry testing assembly, a pipeline, a funnel and a first measuring flask arranged on one side of a support, a second measuring flask arranged on the other side of the support, the funnel is located above the first measuring flask, a first screen is arranged in the funnel, and a funnel opening and closing electric ball valve is arranged at the bottom of the funnel. A first measuring flask is supported on an electronic weighing instrument, a second measuring flask is flush with the first measuring flask, a laser tester is arranged on a support and is aligned with a set scale on a funnel, a capacitance proximity switch is arranged below the funnel, and a clamping ring is an open-close type clamping ring which is rotatably arranged on the support. According to the automatic sampling device, automatic sampling and automatic detection can be achieved, time and labor are saved, efficiency is high, accuracy and reproducibility are good, and shield construction can be better guided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a shield mud processing technical field, concretely relates to a slurry test system of slurry shield machine. BACKGROUND

[0002] With the development of the times, underground space tunnel construction expands successively, and the application of shield machine is more and more widely, and mud index is the control emphasis of slurry shield machine in the process of tunneling, and mud index mainly includes three parameters of mud specific gravity, mud viscosity and mud sand content, and the traditional detection mode is mostly artificial sampling + manual detection, and it is time-consuming and laborious, and the efficiency is low, and artificial error exists, and the gap of multiple detections is larger, and the accuracy and reproducibility are poor, and only the most conservative data can be taken to guide shield construction, and it is difficult to fully exert the efficiency of shield. UTILITY MODEL CONTENT

[0003] The utility model aims at overcoming one or more defects in prior art, and provides a slurry test system of slurry shield machine.

[0004] To achieve the above-mentioned purpose, the technical scheme provided by the utility model is a slurry test system of slurry shield machine, which comprises:

[0005] The storage tank is provided with a partition plate, and the partition plate divides the internal cavity of the storage tank into water area and slurry area which are independent of each other.

[0006] The slurry pumping assembly comprises a slurry pumping pipeline and a slurry pump, one end of the slurry pumping pipeline is connected with the slurry return tank of the slurry shield machine, the other end extends above the slurry area, and the slurry pump is used to pump the slurry in the slurry return tank into the slurry area through the slurry pumping pipeline.

[0007] The mud testing assembly comprises a bracket, a hopper, a first measuring cylinder, a second measuring cylinder, an electronic scale, a laser tester, a capacitive proximity switch, a snap ring, and a stirring barrel; the hopper and the first measuring cylinder are arranged on one side of the bracket, the second measuring cylinder is arranged on the other side of the bracket, the hopper is arranged above the first measuring cylinder, a first screen is arranged in the hopper, a hopper opening and closing electric ball valve is arranged at the bottom of the hopper, the first measuring cylinder is supported on the electronic scale, the second measuring cylinder is flush with the first measuring cylinder, the laser tester is arranged on the bracket and is aligned with a set scale on the hopper, the capacitive proximity switch is arranged below the hopper and is used to detect the time taken for mud with a capacity corresponding to the set scale to drop from the hopper into the first measuring cylinder, the snap ring is rotatably arranged on the bracket, the rotation plane of the snap ring is higher than the bottle mouths of the first measuring cylinder and the second measuring cylinder and is lower than the capacitive proximity switch, a second screen is arranged in the snap ring, and the snap ring is an opening and closing type snap ring; a stirring paddle is rotatably arranged in the stirring barrel.

[0008] The mud testing assembly further comprises a pipeline, an electric ball valve is arranged on the pipeline, and the pipeline is used to deliver mud in the mud area to the hopper, the first measuring cylinder, and the stirring barrel, is used to deliver water in the water area to the first measuring cylinder, the second measuring cylinder, and the stirring barrel, and is used to deliver slurry in the stirring barrel to the first measuring cylinder.

[0009] Preferably, the bracket comprises a base and a support rod arranged on the base and vertically extending upwards, and a support ring frame for placing the hopper, the first measuring cylinder, and the second measuring cylinder is connected to the support rod.

[0010] Preferably, the hopper is lower than the storage tank, the mesh number of the first screen is 16 meshes, the first screen is higher than the set scale, the mesh number of the second screen is 203 meshes, and the second screen can automatically fall from the snap ring when the snap ring is opened.

[0011] Preferably, the pipeline comprises first to sixth pipelines, one end of the first pipeline is communicated with the bottom of the slurry area, the other end extends to above the funnel, the first pipeline is used for conveying the slurry in the slurry area into the funnel, one end of the second pipeline is communicated with the bottom of the water area, the other end extends to above the first measuring bottle, the second pipeline is used for conveying the water in the water area into the first measuring bottle, one end of the third pipeline is connected to the first pipeline, the other end of the third pipeline extends to above the stirring barrel, the third pipeline is used for conveying the slurry in the slurry area into the stirring barrel, one end of the fourth pipeline is connected to the second pipeline, the other end of the fourth pipeline extends to above the stirring barrel, the fourth pipeline is used for conveying the water in the water area into the stirring barrel, one end of the fifth pipeline is connected to the bottom of the stirring barrel, the other end of the fifth pipeline extends to above the first measuring bottle, the fifth pipeline is used for conveying the stirred slurry in the stirring barrel into the first measuring bottle, one end of the sixth pipeline is connected to the second pipeline, the other end of the sixth pipeline extends to above the second measuring bottle, the sixth pipeline is used for conveying the water in the water area into the second measuring bottle.

[0012] Further preferably, the electric ball valve comprises a first electric ball valve arranged on the first pipeline, a second electric ball valve arranged on the second pipeline, a third electric ball valve arranged on the third pipeline, a fourth electric ball valve arranged on the fourth pipeline, a fifth electric ball valve arranged on the fifth pipeline and a sixth electric ball valve arranged on the sixth pipeline, the first electric ball valve is located between the third pipeline and the funnel, the connection points of the fourth pipeline, the sixth pipeline and the second electric ball valve along the flow direction of the water in the second pipeline are sequentially arranged.

[0013] Further preferably, the stirring barrel is located below the storage tank, the inner wall of the stirring barrel is provided with a lower liquid level probe and an upper liquid level probe, when the liquid level in the stirring barrel is below the lower liquid level probe, the third electric ball valve and the fourth electric ball valve are opened, the slurry in the slurry area and the water in the water area flow into the stirring barrel under the action of gravity, when the liquid level in the stirring barrel is above the upper liquid level probe, the third electric ball valve and the fourth electric ball valve are closed.

[0014] Preferably, the slurry pumping assembly further comprises a liquid level meter arranged on the inner wall of the slurry area, when the liquid level of the slurry in the slurry area detected by the liquid level meter reaches a set value, the slurry pump is closed.

[0015] Preferably, the slurry pumping assembly further comprises a slurry suction on-off electric ball valve arranged on the slurry suction pipeline for controlling the on-off of the slurry suction pipeline, and the slurry suction on-off electric ball valve is interlocked with the slurry pump.

[0016] Preferably, the slurry test system of the slurry shield machine further comprises a control electric box, and the control electric box is electrically connected with the electronic weighing instrument, the laser tester and the capacitive proximity switch.

[0017] Compared with the prior art, the utility model has the following advantages due to the above technical scheme:

[0018] The slurry test system of the slurry shield machine realizes integrated design of slurry index testing, integrates the testing of slurry specific gravity, slurry viscosity and slurry sand content in one system, reduces manual operation, reduces human error, improves testing accuracy and reproducibility, reduces equipment space occupation and improves operation convenience. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a structural schematic view of the preferred embodiment of the utility model.

[0020] Figure 2 is Figure 1 a structural schematic view of the slurry pumping assembly.

[0021] Figure 3 is Figure 1 a structural schematic view of the slurry test assembly, at this time, the snap ring is located above the first measuring flask.

[0022] Figure 4 is Figure 1 a structural schematic view of the slurry test assembly, at this time, the snap ring is located above the second measuring flask.

[0023] Wherein: 1. slurry tank; 10. storage tank; 11. partition; 12. water zone; 13. slurry zone; 21. slurry pumping pipeline; 22. slurry pump; 23. liquid level meter; 24. slurry pumping on-off electric ball valve; 31. support; 311. base; 312. support rod; 313. support ring frame; 32. hopper; 321. first screen; 322. hopper on-off electric ball valve; 33. first measuring bottle; 34. second measuring bottle; 35. electronic weighing instrument; 36. laser tester; 37. capacitive proximity switch; 38. snap ring; 381. second screen; 39. stirring barrel; 391. stirring paddle; 392. lower liquid level probe; 393. upper liquid level probe; 41. first pipeline; 42. second pipeline; 43. third pipeline; 44. fourth pipeline; 45. fifth pipeline; 46. sixth pipeline; 51. first electric ball valve; 52. second electric ball valve; 53. third electric ball valve; 54. fourth electric ball valve; 55. fifth electric ball valve; 56. sixth electric ball valve; 60. control electric box. DETAILED DESCRIPTION

[0024] As Figures 1 to 4The utility model provides a slurry shield machine mud water test system, including: storage tank 10, slurry pumping assembly, mud water test component, pipeline, wherein, the inside of storage tank 10 is equipped with baffle 11, baffle 11 divides the internal cavity of storage tank 10 into water area 12 and mud water area 13 that are independent of each other, and the volume of water area 12 and mud water area 13 is equal;Slurry pumping assembly includes pumping pipeline 21, mud pump 22, liquid level meter 23, pumping on-off electric ball valve 24, one end of pumping pipeline 21 is connected with mud water shield machine's back slurry pool 1, and the other end extends to the top of mud water area 13, mud pump 22 is used to pump the mud water in back slurry pool 1 into mud water area 13 through pumping pipeline 21, liquid level meter 23 is arranged on the inner wall of mud water area 13, when mud pump 22 is opened, pumping on-off electric ball valve 24 opens, when mud pump 22 is closed, pumping on-off electric ball valve 24 closes, when mud pump 22 is closed, pumping on-off electric ball valve 24 closes;Mud water test component includes support 31, hopper 32, first measuring flask 33, second measuring flask 34, electronic weighing instrument 35, laser tester 36, electric capacity proximity switch 37, snap ring 38, stirring barrel 39, support 31 includes base 311 and the support rod 312 that sets up on base 311 and vertically extends upwards, the support ring frame 313 for placing hopper 32, first measuring flask 33, second measuring flask 34 is connected on support rod 312, hopper 32 and first measuring flask 33 are located at the right side of support 31, second measuring flask 34 is located at the left side of support 31, hopper 32 is located above first measuring flask 33 and is lower than storage tank 10, first screen 321 is equipped in hopper 32, the mesh number of first screen 321 is 16, first screen 321 is higher than the set scale on hopper 32, the bottom of hopper 32 is equipped with hopper on-off electric ball valve 322, first measuring flask 33 is supported on electronic weighing instrument 35, second measuring flask 34 is flush with first measuring flask 33, laser tester 36 is set up on support 31 and is aligned with the set scale on hopper 32, electric capacity proximity switch 37 is arranged below hopper 32 and is used to detect the time that the mud water of the capacity corresponding to the set scale in hopper 32 drips into first measuring flask 33, snap ring 38 is rotatably arranged on support 31, the rotation plane of snap ring 38 is higher than the bottle mouth of first measuring flask 33 and second measuring flask 34 and is lower than electric capacity proximity switch 37, second screen 381 is equipped in snap ring 38, the mesh number of second screen 381 is 203, snap ring 38 is open-close type snap ring, when snap ring 38 is opened, second screen 381 can automatically fall from snap ring 38, rotatable stirring paddle 391 is equipped in stirring barrel 39.The pipeline is provided with electric ball valves, and is used for conveying the mud in the mud area 13 to the funnel 32, the first measuring bottle 33 and the stirring barrel 39, conveying the water in the water area 12 to the first measuring bottle 33, the second measuring bottle 34 and the stirring barrel 39, and conveying the slurry in the stirring barrel 39 to the first measuring bottle 33.

[0025] The advantages of the arrangement are that the integration design of the mud index test is realized, the test of the mud specific gravity, the mud viscosity and the mud sand content is integrated in one system, the manual operation is reduced, the human error is reduced, the test accuracy and the reproducibility are improved, the equipment occupation space is reduced, and the operation convenience is improved.

[0026] Further, the pipeline comprises first to sixth pipelines, one end of the first pipeline 41 is connected with the bottom of the mud area 13, and the other end extends above the funnel 32, the first pipeline 41 is used for conveying the mud in the mud area 13 to the funnel 32, one end of the second pipeline 42 is connected with the bottom of the water area 12, and the other end extends above the first measuring bottle 33, the second pipeline 42 is used for conveying the water in the water area 12 to the first measuring bottle 33, one end of the third pipeline 43 is connected with the first pipeline 41, and the other end extends above the stirring barrel 39, the third pipeline 43 is used for conveying the mud in the mud area 13 to the stirring barrel 39, one end of the fourth pipeline 44 is connected with the second pipeline 42, and the other end extends above the stirring barrel 39, the fourth pipeline 44 is used for conveying the water in the water area 12 to the stirring barrel 39, one end of the fifth pipeline 45 is connected with the bottom of the stirring barrel 39, and the other end extends above the first measuring bottle 33, the fifth pipeline 45 is used for conveying the stirred mud in the stirring barrel 39 to the first measuring bottle 33, one end of the sixth pipeline 46 is connected with the second pipeline 42, and the other end extends above the second measuring bottle 34, the sixth pipeline 46 is used for conveying the water in the water area 12 to the second measuring bottle 34, the electric ball valves on the pipeline comprise a first electric ball valve 51 arranged on the first pipeline 41, a second electric ball valve 52 arranged on the second pipeline 42, a third electric ball valve 53 arranged on the third pipeline 43, a fourth electric ball valve 54 arranged on the fourth pipeline 44, a fifth electric ball valve 55 arranged on the fifth pipeline 45 and a sixth electric ball valve 56 arranged on the sixth pipeline 46, the first electric ball valve 51 is located between the third pipeline 43 and the funnel 32, and the by-passing points of the fourth pipeline 44 and the sixth pipeline 46, the second electric ball valve 52 are arranged along the water flow direction in the second pipeline 42 in sequence.

[0027] In the embodiment, the stirring barrel 39 is located below the storage tank 10, the inner wall of the stirring barrel 39 is provided with a lower liquid level probe 392 and an upper liquid level probe 393, when the liquid level in the stirring barrel 39 is below the lower liquid level probe 392, the third electric ball valve 43 and the fourth electric ball valve 44 are opened, the mud in the mud area 13 and the water in the water area 12 flow into the stirring barrel 39 under the action of gravity, when the liquid level in the stirring barrel 39 is above the upper liquid level probe 393, the third electric ball valve 43 and the fourth electric ball valve 44 are closed, the capacity corresponding to the lower liquid level probe 392 is 100ml, and the capacity corresponding to the upper liquid level probe 393 is 350ml.

[0028] The mud-water shield machine mud testing system further comprises a control electric box 60, and a PLC in the control electric box 60 is electrically connected with the mud pump 22, the liquid level meter 23, the mud pumping opening and closing electric ball valve 24, the hopper opening and closing electric ball valve 322, the electronic weighing instrument 35, the laser tester 36, the capacitive proximity switch 37, a stirring motor of the stirring barrel 39, the first electric ball valve 51, the second electric ball valve 52, the third electric ball valve 53, the fourth electric ball valve 54, the fifth electric ball valve 55 and the sixth electric ball valve 56, so as to realize automatic control.

[0029] In the embodiment, the first pipeline 41 and the fifth pipeline 45 for conveying mud are abrasion-resistant hoses, so that the durability is improved.

[0030] In the embodiment, the capacity of the storage tank 10 is 10L, the capacities of the water area 12 and the mud area 13 are 5L, the sizes of the pipelines 40 are all DN10mm, the volume of the hopper 32 below the first screen mesh 321 is 700ml, the capacity corresponding to the scale provided on the hopper 32 is 500ml, the volumes of the first measuring bottle 33 and the second measuring bottle 34 are 1L, and a small motor is arranged on the stirring paddle 391 of the stirring barrel 39, so as to drive the stirring paddle 391 to rotate.

[0031] The utility model also provides a kind of mud-water shield machine mud testing method, is tested using above-mentioned mud-water shield machine mud testing system, and this testing method includes the following steps:

[0032] a. the mud in mud area is conveyed to funnel, after filtration by first screen mesh, fall in funnel, when the mud liquid level in funnel reaches set scale, stop conveying;

[0033] b. open funnel opening and closing electromagnetic ball valve, so that the mud in funnel drops to first measuring bottle, and drop time is detected by capacitive proximity switch, and mud viscosity is calculated;

[0034] c. After the mud in the funnel is all dropped into the first amount bottle, the weight of the first amount bottle is weighed by the electronic weighing instrument, and then the self weight of the first amount bottle is subtracted, so that the weight of the mud corresponding to the capacity of the set scale is obtained, and then the volume of the mud is obtained through the scale on the first amount bottle, so that the specific gravity of the mud can be calculated;

[0035] d. The snap ring is rotated, and the second screen is moved above the bottle mouth of the first amount bottle;

[0036] e. The mud in the mud area and the water in the water area are transported to the stirring barrel according to the set proportion, and after stirring is completed, the mud of the set capacity in the stirring barrel is transported to the first amount bottle and falls into the first amount bottle after being filtered through the second screen;

[0037] f. The water in the water area is transported to the first amount bottle, and the particles on the second screen are washed, and after being washed clean, the snap ring is rotated, and the second screen is moved above the bottle mouth of the second amount bottle;

[0038] g. A set volume of water is injected into the second amount bottle, the snap ring is loosened, the second screen falls into the second amount bottle together with the particles, and the sand content of the mud can be calculated by subtracting the volume of the second screen from the scale change of the second amount bottle;

[0039] h. The funnel is washed, and the first amount bottle is used to receive the washing material, and after washing is completed, the first amount bottle and the second amount bottle are disassembled for cleaning and resetting for the next detection.

[0040] The mud water shield tunneling machine mud test method provided by the utility model has the advantages of simple operation and easy implementation.

[0041] In actual operation, the following three steps can be divided:

[0042] Step one: when the mud in the storage tank reaches 700ml, the first electric ball valve is opened, the mud enters the funnel under the action of gravity, the funnel opening and closing electric ball valve is opened after 500ml, the mud flows into the first amount bottle from the lower part, and in this process, the proximity switch starts to work, and the 500ml mud dropping time is measured.

[0043] Step two: after the mud flows into the first amount bottle through step one, the weight of the mud is obtained by the electronic weighing instrument (note that the value of the electronic weighing instrument before the mud flows in is zero), and the specific gravity of the mud is calculated through known data and calculation formula (formula one: mud density = mud weight (g) / mud volume (cm 3 ) = p = m / v, formula two SG mud specific gravity = p mud / p water) according to the actual weight and volume of the electronic weighing instrument, and the accuracy of the data is maintained in the process.

[0044] Step three: after the slurry passes through step two, the snap ring is rotated to the upper part of the first measuring cylinder, the slurry in the stirring barrel is stirred while measuring the viscosity, when the viscosity and specific gravity measurement are completed, the fifth electric ball valve is opened, the slurry flows into the first measuring cylinder, the second screen in the snap ring filters the sand in it, after the filtration is completed, the second electric ball valve is opened to flush it, after the flushing is completed, the snap ring is rotated to the upper part of the second measuring cylinder, the snap ring is opened, the second screen falls into the second measuring cylinder, then the fifth electric ball valve is closed and the sixth electric ball valve is opened, a certain amount of clean water is added to the second measuring cylinder, and then the data is read out to measure the percentage of the solid phase particles in the slurry which cannot pass through 203 mesh or whose particle size is greater than 0.074 mm, the measuring cylinder is static on the test table, the data is collected after the sand particles are deposited, it should be noted that the volume occupied by the second screen needs to be removed in advance, and at the same time, a certain amount of clean water can be added to the second measuring cylinder before the snap ring is opened, so as to avoid damage to the second measuring cylinder caused by the falling of the second screen.

[0045] The above examples are only for illustrating the technical concept and characteristics of the present application, the purpose is to enable the person skilled in the art to understand the content of the present application and to implement it, and it cannot limit the protection scope of the present application, any equivalent changes or modifications made according to the spirit and essence of the present application should be covered within the protection scope of the present application.

Claims

1. A mud testing system for a slurry shield tunneling machine, comprising: A storage tank, wherein a partition is provided inside the storage tank, the partition dividing the internal cavity of the storage tank into an independent water zone and a mud zone; A slurry pumping assembly includes a slurry pumping pipeline and a mud pump. One end of the slurry pumping pipeline is connected to the slurry return pool of the slurry shield machine, and the other end extends above the mud zone. The mud pump is used to pump the mud in the slurry return pool into the mud zone through the slurry pumping pipeline. Mud testing components; Its features are: The mud testing assembly includes a support, a funnel, a first measuring bottle, a second measuring bottle, an electronic weighing instrument, a laser tester, a capacitive proximity switch, a retaining ring, and a mixing tank. The funnel and the first measuring bottle are located on one side of the support, and the second measuring bottle is located on the other side of the support. The funnel is positioned above the first measuring bottle and contains a first screen. The bottom of the funnel is equipped with an electric ball valve for opening and closing the funnel. The first measuring bottle is supported on the electronic weighing instrument, and the second measuring bottle is flush with the first measuring bottle. The laser tester is mounted on the support and aligned with a set scale on the funnel. The capacitive proximity switch is located below the funnel and is used to detect the time it takes for a volume of mud corresponding to the set scale to drip from the funnel into the first measuring bottle. The retaining ring is rotatably mounted on the support, and the plane of rotation of the retaining ring is higher than the openings of the first and second measuring bottles and lower than the capacitive proximity switch. The retaining ring contains a second screen and is an openable / closable retaining ring. The mixing tank contains a rotatable stirring paddle. The mud testing assembly also includes a pipeline equipped with an electric ball valve. The pipeline is used to transport mud from the mud zone to the funnel, the first measuring bottle, and the mixing tank, and also to transport water from the water zone to the first measuring bottle, the second measuring bottle, and the mixing tank, as well as to transport slurry from the mixing tank to the first measuring bottle.

2. The slurry shield machine slurry testing system of claim 1, wherein: The bracket includes a base and a support rod disposed on the base and extending vertically upward. A support ring is connected to the support rod for placing the funnel, the first measuring bottle, and the second measuring bottle.

3. The slurry shield machine slurry testing system of claim 1, wherein: The funnel is lower than the storage tank, the first screen has a mesh size of 16, the first screen is higher than the set scale, the second screen has a mesh size of 203, and the second screen can automatically fall out of the retaining ring when the retaining ring is opened.

4. The slurry shield machine slurry testing system of claim 1, wherein: The pipeline comprises first to sixth pipelines, one end of the first pipeline is communicated with the bottom of the slurry area, and the other end extends above the funnel, the first pipeline is used for conveying the slurry in the slurry area to the funnel, one end of the second pipeline is communicated with the bottom of the water area, and the other end extends above the first measuring bottle, the second pipeline is used for conveying the water in the water area to the first measuring bottle, one end of the third pipeline is connected to the first pipeline, and the other end of the third pipeline extends above the stirring barrel, the third pipeline is used for conveying the slurry in the slurry area to the stirring barrel, one end of the fourth pipeline is connected to the second pipeline, and the other end of the fourth pipeline extends above the stirring barrel, the fourth pipeline is used for conveying the water in the water area to the stirring barrel, one end of the fifth pipeline is connected to the bottom of the stirring barrel, and the other end of the fifth pipeline extends above the first measuring bottle, the fifth pipeline is used for conveying the stirred slurry in the stirring barrel to the first measuring bottle, and one end of the sixth pipeline is connected to the second pipeline, and the other end of the sixth pipeline extends above the second measuring bottle, the sixth pipeline is used for conveying the water in the water area to the second measuring bottle.

5. The slurry shield machine slurry testing system of claim 4, wherein: The electric ball valve comprises a first electric ball valve arranged on the first pipeline, a second electric ball valve arranged on the second pipeline, a third electric ball valve arranged on the third pipeline, a fourth electric ball valve arranged on the fourth pipeline, a fifth electric ball valve arranged on the fifth pipeline and a sixth electric ball valve arranged on the sixth pipeline, the first electric ball valve is located between the third pipeline and the funnel, and the bypass connection points of the fourth pipeline and the sixth pipeline, the second electric ball valve are arranged along the flow direction of the water in the second pipeline in sequence.

6. The slurry shield machine slurry testing system of claim 5, wherein: The stirring barrel is located below the storage tank, the inner wall of the stirring barrel is provided with a lower liquid level probe and an upper liquid level probe, when the liquid level in the stirring barrel is below the lower liquid level probe, the third electric ball valve and the fourth electric ball valve are opened, and the slurry in the slurry area and the water in the water area flow into the stirring barrel under the action of gravity, when the liquid level in the stirring barrel is above the upper liquid level probe, the third electric ball valve and the fourth electric ball valve are closed.

7. The slurry shield machine slurry testing system of claim 1, wherein: The slurry pumping assembly further comprises a liquid level meter arranged on the inner wall of the slurry area, when the liquid level of the slurry in the slurry area reaches a set value detected by the liquid level meter, the slurry pump is closed.

8. The slurry shield machine slurry testing system of claim 1, wherein: The slurry pumping assembly further comprises a slurry pumping on-off electric ball valve arranged on the slurry pumping pipeline and used for controlling the opening and closing of the slurry pumping pipeline, and the slurry pumping on-off electric ball valve is interlocked with the slurry pump.

9. The slurry shield machine slurry testing system of claim 1, wherein: The slurry test system of the slurry shield tunneling machine further comprises a control electric box, and the control electric box is electrically connected with the electronic weighing instrument, the laser tester and the capacitive proximity switch.

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