CN211697373U - An aggregate-free slurry pipeline fluidity testing equipment - Google Patents

Abstract

A pipeline fluidity testing device for aggregate-free slurries. An aggregate-free slurry pipeline fluidity testing equipment includes a pressure sensor, a control device, a tension sensor, a funnel, a frame, a grouting pipe and a material receiving container; the control device is connected with an external power supply, and the tension sensor is arranged in the control device. Between the device and the funnel, the outlet of the funnel is connected to one end of the grouting pipe, the other end of the grouting pipe is placed above the material receiving container, the material receiving container is placed on the pressure sensor, and the pressure sensor is installed on the base of the frame. The utility model has the following advantages: 1. The structure is simple, the sensitivity and stability are high, and the test is accurate. 2. It can better simulate the real working conditions of boneless grouting body in grouting construction. 3. It can effectively avoid reading errors and reduce the interference of human factors. 4. It can be used for simulation test of high pressure grouting pipe with inner diameter of 4-15mm. 5. Adopt low-voltage safety voltage. 6, easy to clean after the experiment. 7. Can be used for arbitration test.

Description

An aggregate-free slurry pipeline fluidity testing equipment

technical field

The utility model relates to a slurry fluidity testing device, in particular to a pipeline fluidity testing device for aggregate-free slurry.

Background technique

High-pressure grouting bodies have been widely used in today's market. Generally, high-pressure grouting machines are used to grouting components through high-pressure pipes. The inner diameter of the high-pressure grouting pipe on the market is generally 4~8mm and above.

At present, there are many methods for testing the fluidity of grouting bodies on the market for different research purposes, but through experimental verification, they cannot quantitatively and accurately reflect the fluidity of grouting bodies.

The main reason is that the time for the outflow of the grouting body is measured by a quantitative measuring cylinder or a quantitative funnel, and the fluidity of the grouting body in the grouting pipeline of various diameters is not considered, and the grouting pipeline is ignored. Limitation of fluidity; control the weight or volume of the experimental slurry by reading the scale of the container, and then use a stopwatch to calculate the flow time of the slurry to complete the experiment. The result is quite different from the actual intensity. Therefore, although many grouting bodies have good fluidity in laboratory tests, in actual engineering grouting, it is difficult to construct such as pipe blocking, or the strength of the grouting can not meet the reinforcement requirements.

There are many kinds of "aggregate-free slurry with high fluidity and high strength" that can be used for construction of grouting pipes with an inner diameter of less than 8 mm, but it is difficult to popularize and use due to the inability to quantitatively test and evaluate.

Utility model content

The purpose of the utility model is to provide a fluidity testing device for the aggregate-free slurry pipeline, which can effectively simulate and test the flow of various grouting bodies in different grouting pipelines, and accurately reflect the real fluidity index of various grouting bodies. .

In order to achieve the above purpose, the utility model adopts the following technical scheme: an aggregate-free slurry pipeline fluidity testing equipment, including a pressure sensor, a control device, a tension sensor, a funnel, a frame, a grouting pipe and a material receiving container ; The control device is connected to the external power supply to control the opening and closing of the test equipment. The tension sensor is arranged between the control device and the funnel to measure the weight of the slurry in the funnel. The funnel is placed on one side of the frame, and its outlet It is connected with one end of the grouting pipe. The length direction of the grouting pipe extends along the axis of the frame. The other end is placed above the receiving container. The receiving container is placed on the pressure sensor. The pressure sensor is installed on the base of the frame. To measure the weight of the slurry flowing into the receiving container.

Preferably, the control device includes a control panel and a linear motor; the control panel is provided with a number of control buttons and corresponding display units, and the linear motor is arranged at the lower end of the control panel, coaxial with the funnel, and used to control the opening and closing of the funnel outlet.

Preferably, the tension sensor is installed on the lower end of the control device, and is connected and fixed with the top of the funnel through a hanger installed on it.

Further, it also includes a funnel stabilizing plate, a through hole through which the funnel can pass through is arranged on the funnel stabilizing plate, and a telescopic motor is connected and fixed between the lower part of the funnel stabilizing plate and the frame, which is used to raise or lower the funnel stabilizing plate. .

Preferably, the funnel is a conical funnel.

Preferably, a detachable conical funnel pipe connection is installed between the grouting pipe and the conical funnel outlet.

Preferably, adjustable feet are provided at the bottom of the base of the rack.

Preferably, a spirit level is arranged in the base of the frame as an auxiliary tool for adjusting the machine feet.

Preferably, a flushing device is provided on the base of the frame for flushing the funnel and the grouting pipe.

Further, the flushing device includes a water storage tank, a self-priming pump, a bracket, a flushing water pipe and a flushing gun; the water storage tank is arranged on the base of the rack, the self-priming pump is respectively connected with the water storage tank and the flushing gun through the flushing water pipe, and the bracket is used to support Flush the gun.

Working principle: When changing the fluidity test, the method of measuring the outflow time of the grouting body through a quantitative measuring cylinder or a quantitative funnel is adopted, and the combination of the flow cone funnel and the standard-length grouting pipe is used, which is included in the grouting pipe. The limited effect on the fluidity of the slurry can better simulate the real working conditions of the boneless grouting body in the grouting construction; when changing the fluidity test, the mass or volume of the experimental slurry can be controlled by reading the scale of the container, and then Using a stopwatch to calculate the flow time of the slurry to complete the experiment, and using standard measuring instruments such as tension, pressure sensors and timers set on the control panel, can effectively avoid reading errors and reduce human interference, so that the most accurate measurement. The fluidity of reactive aggregate-free grouting was tested.

Compared with the prior art, the utility model has the following advantages:

1. Simple structure, high sensitivity and stability, and accurate testing.

2. It can better simulate the real working conditions of boneless grouting body in grouting construction.

3. It can effectively avoid reading errors and reduce the interference of human factors, so as to test the fluidity of the non-bone grouting body most accurately.

4. It can be used for the simulation test of high-pressure grouting pipes with an inner diameter of 4-15mm, which basically covers all current high-pressure grouting pipes.

5. Use low-voltage safety voltage to avoid the danger of electric shock.

6. Equipped with water tank, water pump and flushing gun for easy cleaning after experiment.

7. It is convenient for measurement and traceability, and can be used for arbitration testing.

Description of drawings

Fig. 1 is the structural representation of the embodiment of the present utility model;

In the figure, 1. Standard height frame; 2. Adjustable machine feet; 3. Spirit level; 4. Standard quantitative conical funnel; 5. Detachable conical funnel pipe connection; 7. Stable plate extension motor; 8. Standard length grouting pipe; 9. Flushing gun; 10. Self-priming water pump; 11. Flushing water pipe; 12. High-precision tension sensor; 13. High-precision pressure sensor; 14. Control panel ; 15. Linear motor; 16. Hanger; 17. Receiving quantitative container; 18. Combined water storage tank; 19. Rinse gun bracket.

Detailed ways

It should be noted that, the orientation words appearing in this embodiment are all described according to the drawings, which do not constitute a limitation to the present invention. In addition, the connection described in this embodiment may be an electrical connection, a fixed connection, an active connection, etc., which needs to be specifically understood according to the description.

The utility model will be described in further detail below in conjunction with accompanying drawing 1: a kind of aggregate-free slurry pipeline fluidity testing equipment, comprising a standard height frame 1, a standard quantitative conical funnel 4, a conical funnel stabilizing disc 6, a stabilizing disc extension The lowering motor 7, the standard length grouting pipe 8, the high-precision tension sensor 12, the high-precision pressure sensor 13, the control panel 14, the linear motor 15, the material receiving and quantitative container 17 and the flushing device.

One end of the standard height rack 1 is installed on the base, and the other end is connected and fixed with the control device. It is installed just above the high-precision pressure sensor 13 .

The entrance of the standard quantitative conical funnel 4 is hoisted on the high-precision tension sensor 12 through the hanger 16, and the high-precision tension sensor 12 is installed at the lower end of the control device, and the control device is connected to the external power supply through the control panel 14 provided on the control device. to read the relevant data of the high-precision tensile force sensor 12; at the same time, not only the tensile force display unit of the high-precision tensile force sensor 12 is provided on the control panel 14, but also a timer setting unit and corresponding buttons are provided to set the test In addition, there are several other display units and corresponding buttons; in order to adapt to standard quantitative conical funnels 4 and standard length grouting pipes 8 of different calibers, the outlet of the standard quantitative conical funnel 4 is detachable. The conical funnel pipe connector 5 is connected with the standard length grouting pipe 8; in order to measure the fluidity of the slurry more accurately, the outlet of the standard quantitative conical funnel 4 is controlled by a linear motor 15, and the linear motor 15 is installed on the hanger 16 The lower side of the upper top, and controlled by the control device, acts as a valve switch of the standard dosing conical funnel 4.

The center position of the conical funnel stabilizing plate 6 is provided with a through hole for the standard quantitative conical funnel 4 to penetrate, which is used to support the standard quantitative conical funnel 4. Connect the fixed stabilizer plate extension motor 7 between them. When it is not working, the conical funnel stabilizer plate 6 drags the standard quantitative conical funnel 4 upward, the hanger 16 works without force, and the tensile force measurement should be 0; when the stabilizer plate extends and descends After the motor 7 puts down the conical funnel stabilizing plate 6 , the standard quantitative conical funnel 4 is suspended by the hanger 16 , and the corresponding tension is measured by the high-precision tension sensor 12 .

One end of the standard length grouting pipe 8 is communicated with the standard quantitative conical funnel 4, and the other end is placed above the material receiving and quantitative container 17, which is used to transport the slurry in the standard quantitative conical funnel 4 into the material receiving and quantitative container 17. .

The flushing device includes a combined water storage tank 18, a self-priming pump 10, a flushing gun bracket 19, a flushing water pipe 11 and a flushing gun 9; the combined water storage tank 18 is set on the base of the standard height frame 1, and the self-priming pump 10 passes through the flushing water pipe 11. They are respectively communicated with the combined water storage tank 18 and the flushing gun 9 , and the flushing gun bracket 19 is used to support the flushing gun 9 .

In order to adapt to different ground environments, the adjustable feet 2 are evenly installed at the bottom of the base, so that the corresponding height can be adjusted when the device is installed. Foot 3.

work process:

1. Place the equipment, adjust the adjustable feet 2, and observe through the spirit level 3 until the equipment is level;

2. Select and install the standard quantitative conical funnel 4 with the required capacity;

3. Install the detachable conical funnel pipe connector 5;

4. Access the standard length grouting pipe 8 of the required size;

5. Turn on the power. The conical funnel stabilization disc 6 is automatically lowered by the stabilization disc extension motor 7, and the standard quantitative conical funnel 4 makes the high-precision tension sensor 12 work under force;

6. Turn on the standby switch;

7. Inject the slurry prepared according to the standard quantitatively into the standard quantitative conical funnel 4, and measure the weight G ₁ of the slurry in the quantitative conical funnel by the high-precision tension sensor 12;

8. Set a slurry flow time t through the control panel 14;

9. Press the start switch, the experiment starts automatically and counts down;

10. The slurry flows down the standard length grouting pipe 8 to the receiving and quantitative container 17;

11. When the time is up, the valve of the standard quantitative conical funnel 4 is automatically closed, and the slurry flowing down the grouting pipe stops;

12. Display the weight G ₂ of the slurry in the receiving and quantitative container 17 through the high-precision pressure sensor 13;

13. Calculate the fluidity and fluidity: Weigh the uniformly stirred slurry of a fixed mass and pour it into the funnel; open the valve to allow the slurry to flow out freely. That is, fluidity=G ₂ /G ₁ *100%; the higher the fluidity, the better the fluidity of the slurry;

14. After the experiment is over, let off the excess slurry in the standard quantitative conical funnel 4; flush the standard quantitative conical funnel 4 and the standard length grouting pipe 8 with the flushing gun 9, and prepare for the next experiment; turn off the power, the conical funnel is stable The disc 6 is automatically raised by the stable disc extension and lowering motor 7, and the standard quantitative conical funnel 4 is held up to protect the high-precision tension sensor 12 from damage.

The above embodiments are only further detailed descriptions of the present invention, and do not constitute a limitation to the present invention. The size of the funnel and the grouting pipe can be adjusted according to the needs of the slurry. It should be understood by those of ordinary skill in the art that any extension and modification made without departing from the spirit of the present invention are within the protection scope of the present invention.

Claims (10)

1. A boneless slurry pipeline fluidity test equipment, includes pressure sensor, its characterized in that: the automatic grouting machine also comprises a control device, a tension sensor, a funnel, a rack, a grouting pipe and a receiving container; the control device is connected with an external power supply and used for controlling the opening and closing of the test equipment, the tension sensor is arranged between the control device and the funnel and used for measuring the weight of slurry in the funnel, the funnel is arranged on one side of the rack, an outlet of the funnel is communicated with one end of the grouting pipe, the length direction of the grouting pipe extends along the axis of the rack, the other end of the grouting pipe is arranged above the material receiving container, the material receiving container is arranged on the pressure sensor, and the pressure sensor is arranged on a base of the rack and used for measuring the weight of the slurry flowing into the material receiving container.

2. The boneless slurry pipeline fluidity testing apparatus of claim 1, wherein: the control device comprises a control panel and a linear motor; the control panel is provided with a plurality of control keys and a corresponding display unit, and the linear motor is arranged at the lower end of the control panel, is coaxial with the funnel and is used for controlling the opening and closing of the outlet of the funnel.

3. The boneless slurry pipeline fluidity testing apparatus according to claim 1 or 2, wherein: the tension sensor is arranged at the lower end of the control device and is fixedly connected with the top of the funnel through a hanging bracket arranged on the tension sensor.

4. The boneless slurry pipeline fluidity testing apparatus of claim 3, wherein: the funnel stabilizing disc is provided with a through hole for the funnel to pass through, and a stretching motor is fixedly connected between the lower part of the funnel stabilizing disc and the rack and used for lifting or lowering the funnel stabilizing disc.

5. The boneless slurry pipeline fluidity testing apparatus of claim 1, wherein: the funnel is a cone-shaped funnel.

6. The boneless slurry pipeline fluidity testing apparatus of claim 5, wherein: a detachable conical funnel pipeline connector is arranged between the grouting pipe and the conical funnel outlet.

7. The boneless slurry pipeline fluidity testing apparatus of claim 1, wherein: the bottom of the base of the frame is provided with an adjustable machine leg.

8. The boneless slurry pipeline fluidity testing apparatus of claim 7, wherein: a level bar is arranged in the base of the frame and used as an auxiliary tool for adjusting the machine legs.

9. The boneless slurry pipeline fluidity testing apparatus of claim 1, wherein: and a flushing device is arranged on the base of the rack and used for flushing the funnel and the grouting pipe.

10. The boneless slurry pipeline fluidity testing apparatus of claim 9, wherein: the flushing device comprises a water storage tank, a self-priming water pump, a bracket, a flushing water pipe and a flushing gun; the water storage tank sets up on the frame base, and the self priming water pump passes through wash pipe respectively with water storage tank and wash the rifle intercommunication, and the support is used for the bearing to wash the rifle.

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