CN115032108B - Mud sand content detection device and method and engineering machinery - Google Patents
Mud sand content detection device and method and engineering machinery Download PDFInfo
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Abstract
The invention discloses a device and a method for detecting the sand content of slurry and an engineering machine, belonging to the technical field of detection of the sand content of slurry, wherein the device comprises: the slurry inlet pipe is used for conveying slurry containing sand and stone into the fixed container; a wall brushing water pipe used for flushing the side wall of the fixed container by injecting water into the fixed container; a flushing water pipe for flushing the inner bottom surface of the fixed container by injecting water into the fixed container; a slurry discharge pipe for discharging slurry in the fixed container; a sand discharge pipe for discharging sand in the fixed container; a load cell for weighing the substance in the fixed container; a level sensor for detecting a liquid level within the stationary container. The invention can quickly and accurately detect the sand content of the slurry and avoid fussy manual operation.
Description
Technical Field
The invention belongs to the technical field of mud sand content detection, and particularly relates to a device and a method for detecting mud sand content and engineering machinery.
Background
After the underground continuous wall equipment is constructed, the slurry replacement needs to be completed while concrete is poured, the sand content of the slurry is an important construction index in the replacement process, and the anti-seepage effect of the finished wall is influenced if the sand content is too high. How to quickly and accurately read the sand content of the slurry in the tank is a difficult problem in the industry. At present, the measuring cup method specified in the national standard is mostly adopted in the industry, and the main problems of the method are as follows: (1) manual sampling, and the measurement process is complicated; (2) The separation of sand from mud often employs a rocking or centrifugal device; (3) the device is often device independent.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a device and a method for detecting the sand content of slurry and engineering machinery, which can quickly and accurately detect the sand content of the slurry and avoid complicated manual operation.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
in a first aspect, a mud sand content detection device is provided, including: fixing the container; a slurry inlet pipe for conveying slurry containing sand and stone into the fixed container; a wall brushing water pipe used for flushing the side wall of the fixed container by injecting water into the fixed container; a washing water pipe for washing the inner bottom surface of the fixed container by injecting water into the fixed container, and installed on the side wall of the fixed container; the slurry discharge pipe is used for discharging slurry in the fixed container and is arranged on the side wall of the fixed container; the sand discharge pipe is used for discharging sand in the fixed container and is arranged on the side wall of the fixed container; a weighing sensor for weighing the substance in the fixed container, installed at the bottom of the fixed container; and the liquid level sensor is used for detecting the liquid level in the fixed container and is arranged on the side wall of the fixed container.
Furthermore, a filter screen is arranged on the pulp discharge pipe.
Further, the inner diameter of the sand discharge pipe is equal to that of the slurry discharge pipe.
The device further comprises a controller, wherein the controller is electrically connected with the weighing sensor and the liquid level sensor respectively; the controller is respectively and electrically connected with electric control valves arranged on the slurry inlet pipe, the wall brushing water pipe, the scouring water pipe, the slurry discharge pipe and the sand discharge pipe.
Furthermore, the system also comprises a human-computer interaction interface which is electrically connected with the controller.
In a second aspect, a method for detecting a sand content of slurry is provided, where the device for detecting a sand content of slurry according to the first aspect includes: slurry containing sandstone is conveyed into the fixed container through the slurry inlet pipe, and when the liquid level sensor detects that the liquid level reaches the measurement volume of the fixed container, the slurry inlet pipe is closed; opening the slurry discharge pipe, the wall brushing water pipe and the scouring water pipe, flushing the sandstone in the fixed container, and ending flushing after the set slurry emptying time; closing the slurry discharge pipe, opening the wall brushing water pipe and the scouring water pipe to inject water into the fixed container until the liquid level sensor detects that the liquid level reaches the measurement volume of the fixed container, stopping injecting water, measuring the total mass of water and gravel in the fixed container by the weighing sensor at the moment, and recording the total mass as
And calculating the sand content of the slurry.
Further, the sand content of the slurry is calculated by the following formula:
wherein, the first and the second end of the pipe are connected with each other,
representing the sand content of the slurry;
representing the volume occupied by the sand in the fixed container;
representing the total volume of sand and water in the fixed container, namely the measured volume of the fixed container;
expressed in volume of
The mass of the water of (a) is,
which is indicative of the density of the water,
is the density of the sand.
Further, before detection, the slurry discharge speed of the slurry discharge pipe is calibrated, and the calibration method comprises the following steps: opening and advancing the thick liquid pipe, when level sensor detects the liquid level and reachs the gauge volume of fixed container, close and advance the thick liquid pipe, open the thick liquid pipe and calculate the time of thick liquid of arranging this moment:
wherein the content of the first and second substances,
the speed of the discharged slurry is shown,
representing the time of pulp discharge;
after the fixed container is emptied, simultaneously opening the wall brushing water pipe and the scouring water pipe, and closing the wall brushing water pipe and the scouring water pipe when the liquid level sensor detects that the liquid level reaches the measurement volume of the fixed container; calculating the water inlet time and measuring the mass of the water in the fixed container at the moment by a weighing sensor
：
Wherein the content of the first and second substances,
the water inlet speed when the wall brushing water pipe and the flushing water pipe are opened simultaneously is shown,
the water inlet time when the wall brushing water pipe and the flushing water pipe are opened simultaneously is shown;
according to the time of pulp discharge
Water inlet time when wall brushing water pipe and scouring water pipe are opened simultaneously
And adjusting the water inlet speed and calculating the slurry emptying time.
Further, according to the time of pulp discharge
Water inlet time when wall brushing water pipe and scouring water pipe are opened simultaneously
Adjusting the water inlet speed and calculating the slurry emptying time, specifically comprising the following steps:
when in use
When the water inflow speed is larger than or equal to the slurry discharge speed, the water inflow speed is reduced;
when the temperature is higher than the set temperature
When the water inlet speed is lower than the slurry discharge speed, the time required for emptying the fixed container is calculated as follows:
wherein the content of the first and second substances,
indicating the mud drainage time.
In a third aspect, a construction machine is provided, wherein the construction machine is provided with a mud pump and the mud sand content detection device of the first aspect, and a mud inlet pipe is connected with an outlet of the mud pump.
Compared with the prior art, the invention has the following beneficial effects:
(1) According to the invention, the fixed container, the slurry inlet pipe, the wall brushing water pipe, the scouring water pipe, the slurry discharge pipe, the sand discharge pipe, the weighing sensor, the liquid level sensor and the like are arranged, so that the sand content of slurry can be rapidly and accurately detected, and complicated manual operation is avoided;
(2) The device can be directly assembled on engineering machinery, has certain portability, is particularly suitable for a slot cleaning machine, and does not need external or secondary assembly.
Drawings
Fig. 1 is a detection schematic diagram of a mud sand content detection device provided by an embodiment of the present invention;
fig. 2 is a schematic view of an overall structure of a mud sand content detection apparatus provided in an embodiment of the present invention;
in the figure, 1, a human-computer interaction interface; 2. a weighing sensor; 3. an electrically controlled valve; 4. flushing the water pipe; 5. brushing a wall water pipe; 6. a sand discharge pipe; 7. a slurry discharge pipe; 8. a pulp inlet pipe; 9. a liquid level sensor; 10. a controller; 11. fixing the container; 12. and (5) filtering the screen.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
The first embodiment is as follows:
as shown in fig. 1 and 2, a mud sand content detection device includes: a fixed container 11; a slurry inlet pipe 8 for delivering slurry containing sand to the fixed container 11; a wall brushing water pipe 5 for flushing the side wall of the fixed container 11 by injecting water into the fixed container 11; a washing water pipe 4 for washing the inner bottom surface of the fixed container 11 by injecting water into the fixed container 11, installed at the sidewall of the fixed container 11; a slurry discharge pipe 7 for discharging slurry in the fixed container 11, installed at a side wall of the fixed container 11; a sand discharge pipe 6 for discharging sand in the fixed container 11, installed on the side wall of the fixed container 11; a load cell 2 for weighing the contents of the fixed container 11, installed at the bottom of the fixed container 11; a liquid level sensor 9 for detecting a liquid level in the fixed container 11 is installed at a side wall of the fixed container 11.
The embodiment also comprises a controller 10, wherein the controller 10 is respectively and electrically connected with the weighing sensor 2 and the liquid level sensor 9; the controller 10 is respectively electrically connected with the electric control valves 3 arranged on the slurry inlet pipe 8, the wall brushing water pipe 5, the scouring water pipe 4, the slurry discharge pipe 7 and the sand discharge pipe 6. The system further comprises a human-computer interaction interface 1, and the human-computer interaction interface 1 is electrically connected with the controller 10.
The slurry inlet pipe 8 is connected with a slurry pump of mechanical equipment, slurry flows into the fixed container 11, and slurry sampling is completed with the aid of the liquid level sensor 9.
The opening of the slurry discharge pipe 7 is provided with a 200-mesh filter screen 12 for separating slurry and sand.
The wall brushing water pipe 5 and the scouring water pipe 4 can carry out high-pressure scouring on the side wall of the fixed container 11 and the residual slurry at the bottom of the fixed container 11 after slurry discharge, and the scouring is less than 74 DEG
The particles can be flushed out through the slurry discharge pipe 7, and the sand and stone flushing process is completed.
After measuring the weight of the water and the sand, the weighing sensor 2 can complete the measurement of the sand content through the calculation of the controller 10 and display the result on the human-computer interaction interface 1.
After the measurement is finished, the sandstone is discharged out of the fixed container 11 from the sand discharge pipe 6 through the flushing water pipe 4; the inner diameters of the sand discharge pipe 6 and the slurry discharge pipe 7 are equal.
The man-machine interaction interface comprises a calibration interface and an automatic measurement interface. And the interface is calibrated, and the slurry discharge speed of the slurry discharge pipe 7 and the water inlet speed when the wall brushing water pipe 5 and the scouring water pipe 4 are simultaneously opened can be calibrated through the switch of the electric control valve 3. The automatic measurement interface shows the flow design of 'slurry inlet sampling', 'sand erosion', 'sand content measurement' and 'sand discharge'.
The invention realizes the rapid and accurate detection of the sand content of the slurry and avoids the complicated manual operation by arranging the fixed container, the slurry inlet pipe, the wall brushing water pipe, the scouring water pipe, the slurry discharge pipe, the sand discharge pipe, the weighing sensor, the liquid level sensor and the like.
The second embodiment:
based on embodiment one mud sand content detection device, this embodiment provides a mud sand content detection method, adopts embodiment one mud sand content detection device, includes:
(1) Slurry containing sand is conveyed into a fixed container 11 through a slurry inlet pipe 8, and when a liquid level sensor 9 detects that the liquid level reaches the measurement volume of the fixed container 11, the slurry inlet pipe 8 is closed;
(2) Opening the slurry discharge pipe 7, the wall brushing water pipe 5 and the scouring water pipe 4, flushing the sandstone in the fixed container 11, and ending the flushing after a set time;
(3) Closing the slurry discharge pipe 7, opening the wall brushing water pipe 5 and the scouring water pipe 4 to inject water into the fixed container 11 until the liquid level sensor 9 detects that the liquid level reaches the measurement volume of the fixed container 11, stopping injecting water, measuring the total mass of water and gravel in the fixed container 11 by the weighing sensor 2, and recording the total mass as
And calculating the sand content of the slurry.
During construction, the slurry discharge speed of the slurry discharge pipe 7 is calibrated through the human-computer interaction interface 1, the calibration method is that the slurry inlet pipe 8 is opened by the controller 10 through the electric control valve 3, when the liquid level sensor 9 detects that the measured volume of the fixed container 11 is reached, the slurry inlet pipe 8 is closed, at the moment, the slurry discharge pipe 7 is opened by the controller 10 through the electric control valve 3, and the slurry discharge time is calculated:
wherein the content of the first and second substances,
the speed of the discharged slurry is shown,
the time for discharging the slurry is shown,
the total volume of sand and water in the holding vessel, i.e. the measured volume of the holding vessel, is indicated.
The slurry in the holding tank 11 is emptied.
The fixed container 11 is filled with water. The controller 10 simultaneously opens the wall brushing water pipe 5 and the scouring water pipe 4 through the electric control valve 3, and closes the wall brushing water pipe 5 and the scouring water pipe 4 when the liquid level sensor 9 detects that the measured volume of the fixed container 11 is reached, and at the moment, the controller 10 canTo calculate the water inlet time and measure the mass of the water in the container at that time by the weighing sensor 2
：
Wherein, the first and the second end of the pipe are connected with each other,
the water inlet speed when the wall brushing water pipe and the flushing water pipe are opened simultaneously is shown,
the water inlet time when the wall brushing water pipe and the flushing water pipe are opened simultaneously is shown;
expressed in volume of
The mass of the water (c) of the water,
indicating the density of the water.
From the above formula one can deduce:
when in use
Namely, the water inlet speed is judged to be more than or equal to the pulp discharge speed, the water inlet speed is adjusted at the moment, otherwise, the water quantity overflows, and the electric control valve frequently acts. The man-machine interaction interface 1 gives a prompt that the water inlet speed is too high;
when the temperature is higher than the set temperature
And the water inlet speed is judged to be smaller than the slurry discharge speed, and the time required by emptying the fixed container can be calculated at the moment:
wherein the content of the first and second substances,
indicating the mud drainage time.
And ending the calibration.
And starting an automatic measuring interface of the human-computer interaction interface 1. The interface is a flow design of 'slurry inlet sampling', 'sand scouring', 'sand content measurement' and 'sand discharge'.
One key starts automatic measurement.
The controller 10 opens the slurry inlet pipe 8 through the electric control valve 3, and closes the slurry inlet pipe 8 when the liquid level sensor 9 detects that the measured volume of the fixed container 11 is reached. And completing the pulp feeding and sampling process.
The controller 10 simultaneously opens the slurry discharge pipe 7, the wall brushing water pipe 5 and the scouring water pipe 4 through the electric control valve 3, and the time passes
The slurry is then considered to be emptied from the vessel, the wall brushing pipe 5 flushes the residual slurry from the wall of the vessel to the bottom of the vessel, and the flushing pipe at the bottom of the vessel flushes the slurry to the level of less than 74
The particles are flushed out of the slurry outlet pipe 7 through a 200-mesh screen 12. The process of sand washing is completed.
The controller 10 closes the slurry discharge pipe 7 through the electric control valve 3 and opens the wall brushing water pipe 5 and the washing water pipe 4 until the liquid level sensor 9 detects that the measured volume of the fixed container 11 is reached, and the mass of water and sandstone in the container at the moment can be measured through the measuring and weighing sensor 2
。
At this time, the calculation can be performed according to the following formula
Wherein, the first and the second end of the pipe are connected with each other,
the volume occupied by the sand in the fixed container is shown,
representing the volume occupied by the water in the fixed container,
the density of the sand is represented, and the sand content of the slurry is calculated as follows:
wherein, the first and the second end of the pipe are connected with each other,
the sand content of the slurry is shown,
indicating the total volume of sand and water in the holding vessel.
And the calculation result is sent to the human-computer interaction interface 1.
At this point, the "sand content measurement" process is completed.
The controller 10 simultaneously opens the sand discharge pipe 6, the wall brushing water pipe 5 and the scouring water pipe 4 through the electric control valve 3, and the elapsed time is long because the inner diameters of the sand discharge pipe and the slurry discharge pipe are the same
The sand and water are then considered to be evacuated from the vessel, completing the "discharge of sand"And (6) carrying out the process.
Example three:
based on the mud sand content detection device in the first embodiment and the mud sand content detection method in the second embodiment, the present embodiment provides an engineering machine, where the engineering machine is provided with a mud pump and the mud sand content detection device in the first embodiment, and a mud inlet pipe is connected to an outlet of the mud pump, and the mud sand content is detected according to the mud sand content detection method in the second embodiment.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make various improvements and modifications without departing from the technical principle of the present invention, and those improvements and modifications should be considered as the protection scope of the present invention.
Claims (9)
1. The utility model provides a mud sand content detection device which characterized in that includes:
a fixed container (11);
a slurry inlet pipe (8) for conveying slurry containing sand into the fixed container (11);
a wall brushing water pipe (5) for flushing the side wall of the fixed container (11) by injecting water into the fixed container (11);
a flushing water pipe (4) used for flushing the inner bottom surface of the fixed container (11) by injecting water into the fixed container (11), and arranged on the side wall of the fixed container (11);
the slurry discharge pipe (7) is used for discharging slurry in the fixed container (11) and is arranged on the side wall of the fixed container (11);
the sand discharge pipe (6) is used for discharging sand and stone in the fixed container (11) and is arranged on the side wall of the fixed container (11);
a load cell (2) for weighing the substance in the stationary container (11), mounted at the bottom of the stationary container (11);
and the liquid level sensor (9) is used for detecting the liquid level in the fixed container (11) and is arranged on the side wall of the fixed container (11).
2. The mud sand content detection device according to claim 1, characterized in that a filter screen (12) is installed on the mud discharging pipe (7).
3. The mud sand content detection device according to claim 1, characterized in that the inner diameters of the sand discharge pipe (6) and the mud discharge pipe (7) are equal.
4. The mud sand content detection device according to claim 1, characterized by further comprising a controller (10), wherein the controller (10) is electrically connected with the weighing sensor (2) and the liquid level sensor (9) respectively; the controller (10) is respectively electrically connected with the electric control valves (3) arranged on the slurry inlet pipe (8), the wall brushing water pipe (5), the scouring water pipe (4), the slurry discharge pipe (7) and the sand discharge pipe (6).
5. The mud sand content detection device according to claim 4, characterized by further comprising a human-computer interface (1), wherein the human-computer interface (1) is electrically connected with the controller (10).
6. A method for detecting the sand content of slurry, which is characterized in that the device for detecting the sand content of slurry as claimed in any one of claims 1 to 5 is adopted, and comprises the following steps:
slurry containing sand is conveyed into a fixed container (11) through a slurry inlet pipe (8), and when a liquid level sensor (9) detects that the liquid level reaches the measuring volume of the fixed container (11), the slurry inlet pipe (8) is closed;
opening the slurry discharge pipe (7), the wall brushing water pipe (5) and the scouring water pipe (4), flushing the sandstone in the fixed container (11), and ending flushing after the set slurry emptying time;
the slurry discharge pipe (7) is closed, the wall brushing water pipe (5) and the scouring water pipe (4) are opened, and water is injected into the fixed container (11) until the liquid level sensor (9) detects that the liquid level reachesWhen the measuring volume of the fixed container (11) is reached, the water injection is stopped, and the weighing sensor (2) measures the total mass of water and sandstone in the fixed container (11) at the moment and records the total mass as
And calculating the sand content of the slurry;
the sand content of the slurry is calculated by the following formula:
wherein the content of the first and second substances,
representing the sand content of the slurry;
representing the volume occupied by the sand in the fixed container;
representing the total volume of sand and water in the fixed container, namely the measured volume of the fixed container;
expressed in volume of
The mass of the water (c) of the water,
which is indicative of the density of the water,
is the density of the sand.
7. The mud sand content detection method according to claim 6, characterized in that the discharge speed of the discharge pipe is calibrated before detection, and the calibration method comprises the following steps:
opening a slurry inlet pipe (8), closing the slurry inlet pipe (8) when a liquid level sensor (9) detects that the liquid level reaches the measurement volume of a fixed container (11), and opening a slurry discharge pipe (7) and calculating the slurry discharge time:
wherein the content of the first and second substances,
the speed of the discharged slurry is shown,
representing the time of pulp discharge;
after the fixed container (11) is emptied, the wall brushing water pipe (5) and the scouring water pipe (4) are opened simultaneously, and when the liquid level sensor (9) detects that the liquid level reaches the measurement volume of the fixed container (11), the wall brushing water pipe (5) and the scouring water pipe (4) are closed; calculating the water intake time and measuring the mass of the water in the stationary container (11) by means of the load cell (2) at that time
；
Wherein the content of the first and second substances,
the water inlet speed when the wall brushing water pipe and the flushing water pipe are opened simultaneously is shown,
the water inlet time when the wall brushing water pipe and the flushing water pipe are opened simultaneously is shown;
according to the time of slurry dischargeWorkshop
Water inlet time when wall brushing water pipe and flushing water pipe are opened simultaneously
And adjusting the water inlet speed and calculating the slurry emptying time.
8. The method for detecting the sand content of the slurry as claimed in claim 7, wherein the method is based on the slurry discharge time
Water inlet time when wall brushing water pipe and scouring water pipe are opened simultaneously
Adjusting the water inlet speed and calculating the slurry emptying time, specifically comprising the following steps:
when the temperature is higher than the set temperature
When the water inflow speed is larger than or equal to the slurry discharge speed, the water inflow speed is reduced;
when in use
When the water inlet speed is lower than the slurry discharge speed, the time required for emptying the fixed container is calculated as follows:
wherein the content of the first and second substances,
indicating the mud drainage time.
9. An engineering machine, characterized in that the engineering machine is provided with a slurry pump and a slurry sand content detection device as claimed in any one of claims 1 to 5, wherein a slurry inlet pipe is connected with an outlet of the slurry pump.
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| JP4800878B2 (en) * | 2006-08-23 | 2011-10-26 | 典彦 前田 | Detection method of sand content change and mud flow rate in circulating mud |
| CN104142290B (en) * | 2013-05-09 | 2016-08-03 | 中国石油化工股份有限公司 | A kind of rock sample cumulative volume variable density determinator and method |
| CN104165817B (en) * | 2014-08-27 | 2016-04-13 | 吉林省水土保持科学研究院 | Radial flow sediment content real-time measurement apparatus and measuring method |
| CN105891039A (en) * | 2016-04-08 | 2016-08-24 | 中国建筑第八工程局有限公司 | Measuring method and system for water content in construction sand |
| CN106769607A (en) * | 2017-02-14 | 2017-05-31 | 中国科学院、水利部成都山地灾害与环境研究所 | A kind of system and detection method of dynamic detection slope runoff sediment charge |
| CN209851302U (en) * | 2018-12-21 | 2019-12-27 | 江苏华云桩业有限公司 | Surplus thick liquid density automatic regulating apparatus |
| CN210690315U (en) * | 2019-08-15 | 2020-06-05 | 漳州升亿隆建材有限公司 | Mortar test block density detection device |
| CN211668596U (en) * | 2020-04-07 | 2020-10-13 | 中铁十二局集团第三工程有限公司 | Novel mud sand content tester |
| CN112781655A (en) * | 2021-01-13 | 2021-05-11 | 安徽省地质矿产勘查局313地质队 | Drilling mud performance multi-parameter measuring device |
| CN215812222U (en) * | 2021-08-13 | 2022-02-11 | 中铁十二局集团第三工程有限公司 | Measuring system device for mud content of sand |
| CN216525800U (en) * | 2021-11-10 | 2022-05-13 | 砼筑未来(日照)工程技术有限公司 | Building sand moisture content measuring device |
| CN114199715B (en) * | 2021-12-09 | 2023-01-24 | 国投信开水环境投资有限公司 | Continuous sewage sand content acquisition device and test method |
| CN217060226U (en) * | 2021-12-31 | 2022-07-26 | 中交第二航务工程局有限公司 | Mud multi-parameter measuring device |
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