CN114062183B - Real-time weighing method for rock debris by circulation metering - Google Patents
Real-time weighing method for rock debris by circulation metering Download PDFInfo
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- CN114062183B CN114062183B CN202111204097.4A CN202111204097A CN114062183B CN 114062183 B CN114062183 B CN 114062183B CN 202111204097 A CN202111204097 A CN 202111204097A CN 114062183 B CN114062183 B CN 114062183B
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- 239000011435 rock Substances 0.000 title claims abstract description 112
- 238000005303 weighing Methods 0.000 title claims abstract description 109
- 238000000034 method Methods 0.000 title claims abstract description 43
- 239000000463 material Substances 0.000 claims abstract description 53
- 239000012634 fragment Substances 0.000 claims abstract description 30
- 230000008569 process Effects 0.000 claims abstract description 14
- 125000004122 cyclic group Chemical group 0.000 claims abstract description 4
- 230000007246 mechanism Effects 0.000 claims description 78
- 238000001179 sorption measurement Methods 0.000 claims description 17
- 238000005259 measurement Methods 0.000 claims description 8
- 238000005553 drilling Methods 0.000 description 13
- 238000005520 cutting process Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 3
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- 230000008859 change Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
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- 238000004364 calculation method Methods 0.000 description 1
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- 238000011161 development Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
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Abstract
The invention discloses a real-time weighing method for rock debris by cyclic metering, which comprises the following steps: 1: when weighing is started, controlling the two material receiving containers to circularly rotate between the material receiving station and the station to be connected according to the rotation period; 2: acquiring an initial weight G1 of a receiving container at the initial receiving moment and a current weight G2 of the receiving container at the ending moment of the current rotation period on a receiving station, and accordingly obtaining the rock debris quantity G conveyed in the current rotation period; 3: controlling the rotation of the two receiving containers, controlling rock debris to be separated from the receiving containers in the rotation process, and repeating the step 2 to calculate the rock debris quantity G conveyed in the current rotation period after the two receiving containers are interchanged; 4: and calculating the total weight of the rock fragments according to the sum of the rock fragment amounts G conveyed in each rotation period. The invention solves the technical problem that the single hopper slot can not meter the continuously generated rock scraps in the overturning process, adopts dynamic peeling, and can avoid accumulated weighing errors caused by the adhesion of the rock scraps.
Description
Technical Field
The invention belongs to the technical field of petroleum drilling, and particularly relates to a real-time weighing method for rock fragments in cyclic metering.
Background
The horizontal section of the shale gas horizontal well is as long as more than 1500m, friction resistance and torque are greatly increased due to accumulation of rock scraps in the later drilling period, even complex conditions such as drilling sticking and pump holding are caused, drilling safety is seriously affected, and engineering delay and cost are increased. Meanwhile, the unclean well bore can also cause the problems of difficult well logging tool running, difficult casing running, difficult well cementation and the like. Drilling sticking accidents caused by unclean wellholes of Longmaxi group in Changning, weifar and other areas frequently occur. By the end of 2020, the rotary guiding tool in the middle petroleum Chongqing district is buried in the well 49 sets, so that the loss is huge, the technical bottleneck for improving the drilling speed and efficiency of the horizontal well is formed, and the development of the safety benefit of the shale gas horizontal well is seriously restricted. And the rock debris metering is one of key technologies for judging the returning condition of rock debris in a well in the drilling process, and the residual quantity of the rock debris in the well can be represented through the rock debris metering, so that engineering technicians can make measures in time, ground parameter optimization is guided, and operation risks are reduced.
At present, related researches are carried out in the industry around the online dynamic measurement of rock fragments, and main research results are as follows.
1. The cler technology developed by the company schlumberger is aimed at the weighing requirement of rock debris, and the technical device comprises a rock debris flowmeter (CFM) and a weighing tray, wherein the CFM and the weighing tray are arranged at the tail part of a vibrating screen, and an isolation baffle is arranged outside the weighing tray, so that the safety protection effect can be realized. When drilling cuttings fall into the weighing tray, the flowmeter can monitor weight change, the cuttings are piled on the tray and weighed through the strain gauge, after the weight is accumulated to a certain degree, the tray overturns and topples the cuttings, and the drilling cuttings enter the next metering period, so that the metering of the drilling cuttings is realized in a reciprocating mode.
2. The rock debris weighing device produced by the Harbert company (Halliburton) comprises a distribution box and a weighing groove, wherein the weighing groove is a single-shaft rotating mechanism, drilling rock debris is conveyed to the weighing groove by a vibrating screen through a conveying mechanism, after a certain weight is reached, an output port of the rock debris conveying mechanism is closed, the rock debris is cleared by the groove to be weighed by utilizing the rotation of a rotating shaft and the reset of the weighing groove, the output port of the rock debris conveying mechanism is opened again, and the weighing groove continuously meters the rock debris, so that the weighing metering of the drilling rock debris is realized in a reciprocating manner. The power distribution box is provided with a control module and a power driving module, and the rotation of the rotating shaft is controlled pneumatically.
3. Patent document with publication number CN210719361U discloses a novel rock debris weighing device, and it includes fixed bolster and convex hopper, the fixed bolster is by vertical support and two L shape support an organic wholes formation, is provided with the hopper on the L shape support of fixed bolster low side, hopper and fixed bolster junction are provided with weighing sensor, installs proximity switch in the fixed bolster both sides of hopper bottom, weighing sensor is connected with the display, vibration motor is installed to the hopper bottom, be provided with hydraulic rocker on the fixed bolster for connect fixed bolster and hopper. The device simple structure, convenient operation is convenient for detect the detritus data in real time.
The three achievements all adopt a turnover type metering principle, namely a funnel groove is arranged at the outlet of a vibrating screen, and after the rock scraps to be collected reach a certain weight or a certain time, the numerical value of a weighing sensor is read, and the rock scraps in the groove are turned and removed through a rotating shaft and the funnel groove is reset, so that the metering of the drilling rock scraps is realized reciprocally. The method has the advantages that the realization of the metering algorithm is simple, but the defect that a single funnel groove cannot meter rock scraps continuously generated by the vibrating screen in the overturning process, and the rotating shaft is easy to be subjected to unbalanced torque due to uneven accumulation of the rock scraps when the rock scraps are collected and overturned, so that the rotating shaft is worn, and the service life is limited. In addition, since the rock fragments have a certain viscosity, the rock fragments cannot be completely poured out of the hopper groove during overturning, namely, part of the rock fragments still adhere in the hopper groove, and the weight of the part of the rock fragments is repeatedly measured, so that a large error occurs in the measurement result.
In view of the above, there is a need to develop new technologies to solve the above-mentioned problems.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a real-time weighing method for rock fragments by circular metering, which is based on the periodic and circular weighing of the rock fragments by double material receiving containers and solves the technical problem that the rock fragments which are continuously generated by a single funnel groove cannot be metered in the overturning process; in addition, the invention adopts a dynamic peeling mode during weighing, thus avoiding accumulated weighing errors caused by the adhesion of rock debris and further obtaining accurate weighing results.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
a method for weighing rock debris in real time by circularly metering, which comprises the following steps:
step 1: when weighing is started, the rotating mechanism controls the two material receiving containers to circularly rotate between the material receiving station and the station to be connected according to a rotation period, and when one material receiving container rotates to the material receiving station, the other material receiving container is just positioned at the station to be connected;
step 2: acquiring an initial weight G1 of a receiving container positioned on a receiving station at the initial moment of receiving through a metering assembly, acquiring a current weight G2 of the receiving container through the metering assembly at the end moment of a current rotation period, and calculating the rock debris quantity G conveyed in the current rotation period according to the current weight G2 and the initial weight G1;
step 3: taking the end time of the last rotation period as the start time of the next rotation period, controlling the rotation of the two receiving containers by the rotation mechanism, controlling the rock debris to be separated from the receiving containers in the rotation process, and repeating the step 2 after the two receiving containers exchange positions to calculate the rock debris quantity G conveyed in the current rotation period;
step 4: and after the weighing is stopped, calculating the total weight of the rock fragments according to the sum of the rock fragment amounts G conveyed in each rotation period.
The rotating mechanism and the metering assembly are both connected with the controller, and the controller is used for controlling the rotating mechanism to rotate and is used for receiving data acquired by the metering assembly and calculating the total weight of the rock debris according to the acquired data.
The material receiving station and the station to be connected are symmetrically arranged above and below the vertical direction respectively, and the rotating mechanism controls the two material receiving containers to circularly rotate between the material receiving station and the station to be connected to control the two material receiving containers to circularly overturn up and down in the vertical direction.
The rotating mechanism comprises a support, a rotating shaft and a first servo motor, wherein two ends of the rotating shaft are respectively arranged on the support through bearings, and a power shaft of the first servo motor is fixedly connected with the rotating shaft; the metering components are symmetrically fixed on the rotating shaft, and the material receiving containers are respectively fixed on the metering components; and the first servo motor controls the two material receiving containers to circularly rotate between the material receiving station and the station to be connected through the rotating shaft.
The metering assembly comprises a plurality of weighing sensors which are symmetrically arranged at two ends of the bottom of the receiving container respectively; during measurement, the data acquired by the metering assembly are the sum of the data measured by each weighing sensor.
The material receiving container is a trough with an inverted trapezoid cross section.
The material receiving station and the station to be connected are symmetrically arranged on the left side and the right side of the same transverse plane respectively, and the rotating mechanism controls the two material receiving containers to rotate circularly between the material receiving station and the station to be connected, namely controls the two material receiving containers to rotate circularly left and right on the same transverse plane.
The weighing assembly is a weighing tray respectively fixed on the receiving station and the station to be received, a spacing adsorption fixing mechanism is arranged between the rotating mechanism and the receiving container, and when the rotating mechanism controls the receiving container to start rotating, the rotating mechanism is fixedly connected with the receiving container through the spacing adsorption fixing mechanism; when the rotating mechanism controls the receiving containers to reach the receiving station and the station to be received, the rotating mechanism is disconnected with the receiving containers, and the receiving containers respectively stay on the weighing trays.
The rotating mechanism comprises a base, a rotating frame and a second servo motor, the middle part of the rotating frame is movably arranged on the base, the second servo motor is fixed on the base and can drive the rotating frame to rotate, connecting arms are respectively arranged on two sides of the rotating frame, and the interval adsorption fixing mechanism is arranged between the connecting arms and the material receiving container.
The interval adsorption fixing mechanism comprises an electromagnet and a magnetic attraction body matched with the electromagnet, the electromagnet is fixed on the connecting arm, and the magnetic attraction body is fixed on the receiving container.
The receiving container is a hollow cylinder.
By adopting the technical scheme, the invention has the beneficial technical effects that:
1. according to the invention, the rock debris conveyed in real time is weighed by adopting a mode that two receiving containers circularly rotate between the receiving station and the station to be received, and the other empty receiving container can be rapidly rotated to the receiving station for weighing at the end time of the last rotation period. In addition, the invention starts to record the initial weight G1 of the receiving container at the initial moment of receiving, and records the current weight G2 of the receiving container at the end moment of the rotation period, and the weighing mode is equivalent to a dynamic peeling mode, so that accumulated weighing errors caused by the adhesion of rock debris can be avoided, and an accurate weighing result can be obtained.
2. The two setting modes of the material receiving station and the station to be connected are respectively and symmetrically arranged above and below the vertical direction, and the two setting modes of the material receiving station and the station to be connected are respectively and symmetrically arranged at the left side and the right side of the same transverse plane, so that the two setting modes can adapt to more field installation position changes, the field layout mode is more flexible, and the adaptability is stronger.
Furthermore, based on the two different setting modes of the material receiving station and the station to be connected, the invention adopts two different structures aiming at the rotating mechanism, the metering component and the material receiving container, and has the advantages of being more suitable for the change of materials, avoiding abnormal operation of equipment no matter what form the materials are, ensuring that the metering algorithm is simpler and the metering result is more accurate.
3. The invention has compact integral structure, convenient installation and convenient operation and maintenance.
Drawings
FIG. 1 is a schematic flow chart of the present invention;
fig. 2 is a schematic plan view of embodiment 4;
fig. 3 is a schematic perspective view of embodiment 4;
fig. 4 is a schematic structural view of embodiment 6;
marked in the figure as: 1. a receiving container 2, a support, 3, a rotating shaft 4, a servo motor I, 5, a weighing sensor, 6 and a weighing tray, 7, a base, 8, a rotating frame, 9, a second servo motor, 10, a connecting arm, 11, an electromagnet, 12 and a magnetic attraction body.
Detailed Description
Example 1
The embodiment discloses a real-time weighing method for rock fragments by circular metering, which is based on the fact that a double receiving container 1 is used for circularly weighing the rock fragments in a periodic manner, and can dynamically remove the skin during weighing, so that the technical problem that rock fragments which are continuously generated by a single hopper tank cannot be metered in the overturning process is solved, and the technical problem of accumulated weighing errors caused by the adhesion of the rock fragments is also solved. As shown in fig. 1, it comprises the steps of:
step 1: the method comprises the steps that a receiving station and a station to be connected are preset at the outlet of a vibrating screen for rock scraps, when weighing is started, the rotating mechanism controls two receiving containers 1 to circularly rotate between the receiving station and the station to be connected according to a rotation period, and when one receiving container 1 rotates to the receiving station, the other receiving container 1 is just positioned at the station to be connected.
Step 2: the method comprises the steps of obtaining initial weight G1 of a receiving container 1 positioned on a receiving station at the initial receiving time through a metering assembly, obtaining current weight G2 of the receiving container 1 through the metering assembly at the end time of the current rotation period, and then calculating the rock debris quantity G conveyed in the current rotation period according to the current weight G2 and the initial weight G1.
The step needs to be described, the initial weight G1 of the receiving container 1 can be obtained through the weighing assembly when the receiving container 1 rotates to the station to be connected, or can be obtained through the weighing assembly when the receiving container 1 just rotates to the station to be connected and begins to receive materials, and a reasonable obtaining mode is specifically selected according to actual requirements.
Step 3: and taking the end time of the last rotation period as the start time of the next rotation period, controlling the rotation of the two receiving containers 1 by the rotation mechanism, controlling the rock debris to be separated from the receiving containers 1 in the rotation process, and repeating the step 2 to calculate the rock debris quantity G conveyed in the current rotation period after the two receiving containers 1 are interchanged, namely after the two receiving containers 1 are interchanged with stations.
Step 4: and after the weighing is stopped, calculating the total weight of the rock fragments according to the sum of the rock fragment amounts G conveyed in each rotation period.
The weighing method is realized based on unified control of a controller, and specifically, the rotating mechanism and the metering assembly are both connected with the controller, and the controller is used for controlling the rotating mechanism to rotate on one hand and receiving data acquired by the metering assembly on the other hand and calculating the total weight of the rock debris according to the acquired data.
Example 2
The embodiment discloses a real-time weighing method for circularly metered rock debris, which comprises the following steps as shown in fig. 1:
step 1: the method comprises the steps that a receiving station and a station to be connected are preset at the outlet of a vibrating screen for rock scraps, when weighing is started, the rotating mechanism controls two receiving containers 1 to circularly rotate between the receiving station and the station to be connected according to a rotation period, and when one receiving container 1 rotates to the receiving station, the other receiving container 1 is just positioned at the station to be connected.
The step is to say that the rotation period is set according to the time or the weight of the rock debris in the receiving container, for example, 10s can be set as one rotation period, or the weighing data is set as one rotation period when reaching a set threshold value. The time from the receiving station/waiting station to the waiting station/receiving station of the receiving container is mainly determined according to the rotation speed of a motor, for example, when the rotation speed of a rotating mechanism is 1450r/min, the receiving container is directly driven by the rotating mechanism without a speed reducer, and the time for rotating 180 degrees is about 1/48s.
Step 2: the method comprises the steps of obtaining initial weight G1 of a receiving container 1 positioned on a receiving station at the initial receiving time through a metering assembly, obtaining current weight G2 of the receiving container 1 through the metering assembly at the end time of the current rotation period, and then calculating the rock debris quantity G conveyed in the current rotation period according to the current weight G2 and the initial weight G1.
The step needs to be described, the initial weight G1 of the receiving container 1 can be obtained through the weighing assembly when the receiving container 1 rotates to the station to be connected, or can be obtained through the weighing assembly when the receiving container 1 just rotates to the station to be connected and begins to receive materials, and a reasonable obtaining mode is specifically selected according to actual requirements.
Step 3: and taking the end time of the last rotation period as the start time of the next rotation period, controlling the rotation of the two receiving containers 1 by the rotation mechanism, controlling the rock debris to be separated from the receiving containers 1 in the rotation process, and repeating the step 2 to calculate the rock debris quantity G conveyed in the current rotation period after the two receiving containers 1 are interchanged, namely after the two receiving containers 1 are interchanged with stations.
Step 4: and after the weighing is stopped, calculating the total weight of the rock fragments according to the sum of the rock fragment amounts G conveyed in each rotation period.
Example 3
The embodiment discloses a real-time weighing method for circularly metered rock debris, which comprises the following steps as shown in fig. 1:
step 1: the method comprises the steps that a receiving station and a station to be connected are preset at the outlet of a vibrating screen for rock scraps, when weighing is started, the rotating mechanism controls two receiving containers 1 to circularly rotate between the receiving station and the station to be connected according to a rotation period, and when one receiving container 1 rotates to the receiving station, the other receiving container 1 is just positioned at the station to be connected.
The step is to say that the rotation period is set according to the time or the weight of the rock debris in the receiving container, for example, 10s can be set as one rotation period, or the weighing data is set as one rotation period when reaching a set threshold value. The time from the receiving station/waiting station to the waiting station/receiving station of the receiving container is mainly determined according to the rotation speed of a motor, for example, when the rotation speed of a rotating mechanism is 1450r/min, the receiving container is directly driven by the rotating mechanism without a speed reducer, and the time for rotating 180 degrees is about 1/48s.
Step 2: the method comprises the steps of obtaining initial weight G1 of a receiving container 1 positioned on a receiving station at the initial receiving time through a metering assembly, obtaining current weight G2 of the receiving container 1 through the metering assembly at the end time of the current rotation period, and then calculating the rock debris quantity G conveyed in the current rotation period according to the current weight G2 and the initial weight G1.
The step needs to be described, the initial weight G1 of the receiving container 1 can be obtained through the weighing assembly when the receiving container 1 rotates to the station to be connected, or can be obtained through the weighing assembly when the receiving container 1 just rotates to the station to be connected and begins to receive materials, and a reasonable obtaining mode is specifically selected according to actual requirements.
Step 3: and taking the end time of the last rotation period as the start time of the next rotation period, controlling the rotation of the two receiving containers 1 by the rotation mechanism, controlling the rock debris to be separated from the receiving containers 1 in the rotation process, and repeating the step 2 to calculate the rock debris quantity G conveyed in the current rotation period after the two receiving containers 1 are interchanged, namely after the two receiving containers 1 are interchanged with stations.
Step 4: and after the weighing is stopped, calculating the total weight of the rock fragments according to the sum of the rock fragment amounts G conveyed in each rotation period.
The positions of the material receiving station and the station to be connected are further limited, specifically, the material receiving station and the station to be connected are respectively and symmetrically arranged above and below the vertical direction, and the material receiving station is preferably arranged right above the station to be connected. Under the condition, the rotating mechanism controls the two receiving containers 1 to circularly rotate between the receiving station and the station to be received, namely controls the two receiving containers 1 to circularly overturn up and down in the vertical direction, so that the cyclic weighing of the rock scraps is realized, and the rock scraps are separated from the receiving containers 1 during rotation.
Example 4
The present embodiment further defines the rotation mechanism, the receiving container 1, and the metering assembly on the basis of embodiment 3. As shown in fig. 2 and 3, the rotating mechanism comprises a support 2, a rotating shaft 3 and a first servo motor 4, two ends of the rotating shaft 3 are respectively arranged on the two supports 2 through bearings, a power shaft of the first servo motor 4 is fixedly connected with the rotating shaft 3, and the first servo motor 4 can drive the rotating shaft 3 to rotate on the support 2. The measuring assembly is symmetrically fixed on the rotating shaft 3, the receiving containers 1 are respectively fixed on the measuring assembly, and no direct connection relation exists between the receiving containers 1 and the support 2, so that accurate measurement of rock debris is realized. During weighing, the first servo motor 4 controls the two receiving containers 1 to circularly rotate between the receiving station and the station to be received through the rotating shaft 3.
In this embodiment, the receiving container 1 is further defined, preferably, the receiving container 1 is a trough with an inverted trapezoid cross section, the upper end of the trough is open, the caliber of the trough is large, and rock debris can accurately fall into the receiving container 1 during weighing.
The metering assembly is further defined in this embodiment, preferably, the metering assembly includes a plurality of weighing sensors 5 that are all fixed on the support 2, the plurality of weighing sensors 5 are symmetrically disposed at two ends of the bottom of the receiving container 1, and when the receiving container 1 is located at the receiving station, the receiving station maintains a horizontal state.
Further, in order to achieve accurate measurement of the weight of the rock debris under the condition of keeping reasonable cost, the number of the weighing sensors 5 is preferably four, and the four weighing sensors 5 are symmetrically arranged at two ends of the receiving container 1. In the measurement, the data acquired by the metering assembly is the sum of the data measured by the weighing sensors 5.
Example 5
The embodiment discloses a real-time weighing method for circularly metered rock debris, which comprises the following steps as shown in fig. 1:
step 1: the method comprises the steps that a receiving station and a station to be connected are preset at the outlet of a vibrating screen for rock scraps, when weighing is started, the rotating mechanism controls two receiving containers 1 to circularly rotate between the receiving station and the station to be connected according to a rotation period, and when one receiving container 1 rotates to the receiving station, the other receiving container 1 is just positioned at the station to be connected.
The rotation period is set according to the time or the weight of the rock debris in the receiving container 1, and may be set to be 10s as one rotation period or be set as one rotation period when the weighing data reaches a set threshold. The time from the receiving station/waiting station to the waiting station/receiving station of the receiving container 1 is mainly determined according to the rotation speed of the motor, for example, when the rotation speed of the rotating mechanism is 1450r/min, the receiving container is directly driven by the rotating mechanism without a speed reducer, and the time for rotating 180 degrees is about 1/48s.
Step 2: the method comprises the steps of obtaining initial weight G1 of a receiving container 1 positioned on a receiving station at the initial receiving time through a metering assembly, obtaining current weight G2 of the receiving container 1 through the metering assembly at the end time of the current rotation period, and then calculating the rock debris quantity G conveyed in the current rotation period according to the current weight G2 and the initial weight G1.
The step needs to be described, the initial weight G1 of the receiving container 1 can be obtained through the weighing assembly when the receiving container 1 rotates to the station to be connected, or can be obtained through the weighing assembly when the receiving container 1 just rotates to the station to be connected and begins to receive materials, and a reasonable obtaining mode is specifically selected according to actual requirements.
Step 3: and taking the end time of the last rotation period as the start time of the next rotation period, controlling the rotation of the two receiving containers 1 by the rotation mechanism, controlling the rock debris to be separated from the receiving containers 1 in the rotation process, and repeating the step 2 to calculate the rock debris quantity G conveyed in the current rotation period after the two receiving containers 1 are interchanged, namely after the two receiving containers 1 are interchanged with stations.
Step 4: and after the weighing is stopped, calculating the total weight of the rock fragments according to the sum of the rock fragment amounts G conveyed in each rotation period.
The positions of the material receiving station and the station to be connected are further limited, and specifically, the material receiving station and the station to be connected are symmetrically arranged on the left side and the right side of the same transverse plane respectively. Under the condition, the rotating mechanism controls the two receiving containers 1 to circularly rotate between the receiving station and the station to be received, namely controls the two receiving containers 1 to circularly rotate left and right on the same transverse plane, so that the rock debris is circularly weighed, and the rock debris is separated from the receiving containers 1 during rotation.
Example 6
The present embodiment further defines the rotation mechanism, the receiving container 1, and the metering assembly on the basis of embodiment 5. As shown in fig. 4, the metering component is a weighing tray 6 respectively fixed on the receiving station and the station to be received, a spacing adsorption fixing mechanism is arranged between the rotating mechanism and the receiving container 1, and when the rotating mechanism controls the receiving container 1 to start rotating, the rotating mechanism is fixedly connected with the receiving container 1 through the spacing adsorption fixing mechanism; when the rotating mechanism controls the receiving container 1 to reach the receiving station and the station to be received, the rotating mechanism is disconnected with the receiving container 1, and the receiving containers 1 respectively stay on the weighing trays 6. The two weighing trays 6 are respectively used for acquiring the initial weight G1 of the receiving container 1 at the initial receiving time and the current weight G2 of the receiving container 1, specifically, the weighing tray 6 positioned on the station to be connected is used for acquiring the initial weight G1 of the receiving container 1 at the initial receiving time, and the weighing tray 6 positioned on the receiving station is used for acquiring the current weight G2 of the receiving container 1. In the present embodiment, the receiving container 1 is combined with the weighing tray 6 to receive the rock fragments, that is, the weighing tray 6 is used to receive the rock fragments, and the receiving container 1 is used to limit the rock fragments to the weighing tray 6.
The rotating mechanism, the receiving container 1 and the interval adsorption fixing mechanism are further limited, and the embodiment is as follows:
the rotating mechanism comprises a base 7, a rotating frame 8 and a second servo motor 9, wherein the base 7 is provided with a base body and an upward protruding part, the protruding part is integrally formed on the base body, an installation area is arranged in the middle of the protruding part, and the servo motor is fixed on the base 7 through the installation area. The rotating frame 8 comprises a supporting plate and two connecting arms 10, the connecting arms 10 are of L-shaped structures, the two connecting arms 10 are symmetrically fixed on two sides of the tray, and the supporting plate is movably arranged above the protruding portion through a positioning shaft. The power shaft of the second servo motor 9 is connected with the supporting plate, and the second servo motor 9 can drive the rotating frame 8 to rotate on the base 7. The interval adsorption fixing mechanism is arranged between the connecting arm 10 and the receiving container 1.
Further, the interval adsorption fixing mechanism comprises an electromagnet 11 and a magnetic attraction body 12 matched with the electromagnet 11, the electromagnet 11 is fixed on the connecting arm 10, the magnetic attraction body 12 is fixed on the receiving container 1, and connection and disconnection between the rotating mechanism and the receiving container 1 can be realized by controlling on-off of the electromagnet 11. In this case, since the turret 8 is in a rotated state during weighing, the electromagnet 11 can be supplied with power by rotating the brushes. The specific shape of the magnetic attraction body 12 and the arrangement manner of the magnetic attraction body in the receiving container 1 are not limited, and it is preferable that the magnetic attraction body can be effectively controlled by a rotating mechanism. In addition, to ensure stable weighing, the electromagnet 11 needs to have a power of more than 300W.
The receiving container 1 is a hollow cylinder, and it should be noted that, when the receiving container 1 is fixedly connected with the rotating mechanism through the interval adsorption fixing mechanism, a gap between the bottom of the receiving container 1 and the upper surface of the weighing tray 6 is less than 1mm, and the gap ensures that the receiving container 1 can smoothly rotate to the position above under the drive of the rotating mechanism on one hand, and is also convenient for driving the rock debris to separate from the weighing tray 6 on the other hand.
In the embodiment, when weighing, the interval adsorption fixing mechanism is firstly controlled to be electrified, and at the moment, the electromagnet 11 generates adsorption force to adsorb the material receiving container 1 onto the rotating frame 8 through the magnetic attraction body 12. And the rotation mechanism is used for controlling the material receiving containers 1 to rotate, so that the two material receiving containers 1 are respectively positioned above the material receiving station and above the station to be connected, the interval adsorption fixing mechanism is controlled to be powered off, the material receiving containers 1 respectively stay on the material receiving station and the station to be connected, and at the moment, the initial weight G1 of the material receiving containers 1 at the initial moment of material receiving can be respectively obtained through the two weighing trays 6. Then at the end time of the current rotation period, the current weight G2 of the receiving container 1 on the receiving station can be obtained through the weighing tray 6 on the receiving station, and then the rock debris quantity G conveyed in the current rotation period is calculated according to the current weight G2 and the initial weight G1. The rock debris quantity G conveyed by other rotation periods can be obtained by repeating the procedures. In the above process, since the receiving container 1 is a hollow cylinder, and the gap between the receiving container 1 and the upper surface of the weighing tray 6 is small, when the receiving container 1 is controlled to rotate, the receiving container 1 can drive the rock debris on the weighing tray 6 to separate, so that the measurement of the next rotation period is facilitated.
Example 7
The method of the invention is mainly verified in the embodiment, the method is applied to a Jiang Mou well in Germany by the applicant, a C3 level precision is adopted in a metering assembly, 0.1% error is adopted, the accumulated metering weight is 14678kg through 10 days of field test, the actual weighing weight of returned rock debris is 14613kg, compared with the error of only 0.44%, and the calculation result is basically consistent. It has thus been demonstrated that the invention is capable of obtaining accurate weighing results.
While the invention has been described with reference to certain embodiments, it is understood that any feature disclosed in this specification may be replaced by alternative features serving the equivalent or similar purpose, unless expressly stated otherwise; all of the features disclosed, or all of the steps in a method or process, except for mutually exclusive features and/or steps, may be combined in any manner.
Claims (3)
1. The real-time rock debris weighing method based on cyclic metering is characterized by comprising the following steps of:
step 1: when weighing is started, the rotating mechanism controls the two receiving containers (1) to circularly rotate between the receiving station and the station to be connected according to a rotating period, and when one receiving container (1) rotates to the receiving station, the other receiving container (1) is just positioned at the station to be connected;
step 2: acquiring an initial weight G1 of a receiving container (1) positioned on a receiving station at the initial moment of receiving through a metering assembly, acquiring a current weight G2 of the receiving container (1) through the metering assembly at the end moment of a current rotation period, and calculating the rock debris quantity G conveyed in the current rotation period according to the current weight G2 and the initial weight G1;
step 3: taking the end time of the last rotation period as the start time of the next rotation period, controlling the rotation of the two receiving containers (1) by the rotation mechanism, controlling the rock debris to be separated from the receiving containers (1) in the rotation process, and repeating the step 2 to calculate the rock debris quantity G conveyed in the current rotation period after the two receiving containers (1) exchange positions;
step 4: after the weighing is stopped, calculating the total weight of the rock fragments according to the sum of the rock fragment amounts G conveyed in each rotation period;
the material receiving station and the station to be connected are respectively and symmetrically arranged at the left side and the right side of the same transverse plane, and the rotating mechanism controls the two material receiving containers (1) to circularly rotate between the material receiving station and the station to be connected, namely controls the two material receiving containers (1) to circularly rotate left and right on the same transverse plane;
the weighing assembly is a weighing tray (6) respectively fixed on the material receiving station and the station to be connected, a spacing adsorption fixing mechanism is arranged between the rotating mechanism and the material receiving container (1), and when the rotating mechanism controls the material receiving container (1) to start rotating, the rotating mechanism is fixedly connected with the material receiving container (1) through the spacing adsorption fixing mechanism; when the rotating mechanism controls the receiving container (1) to reach the receiving station and the station to be received, the rotating mechanism is disconnected with the receiving container (1), and the receiving containers (1) respectively stay on the weighing trays (6);
a gap is reserved between the bottom of the receiving container (1) and the upper surface of the weighing tray (6);
the weighing tray (6) positioned on the station to be connected is used for acquiring the initial weight G1 of the receiving container (1) at the initial moment of receiving, the weighing tray (6) positioned on the station to be connected is used for acquiring the current weight G2 of the receiving container (1), and during actual measurement, the receiving container (1) and the weighing tray (6) are matched to receive rock scraps, namely the weighing tray (6) receives the rock scraps, and the receiving container (1) limits the rock scraps on the weighing tray (6);
the rotating mechanism comprises a base (7), a rotating frame (8) and a second servo motor (9), wherein the middle part of the rotating frame (8) is movably arranged on the base (7), the second servo motor (9) is fixed on the base (7) and can drive the rotating frame (8) to rotate, connecting arms (10) are respectively arranged on two sides of the rotating frame (8), and the interval adsorption fixing mechanism is arranged between the connecting arms (10) and the material receiving container (1);
the interval adsorption fixing mechanism comprises an electromagnet (11) and a magnetic attraction body (12) matched with the electromagnet (11), the electromagnet (11) is fixed on the connecting arm (10), and the magnetic attraction body (12) is fixed on the receiving container (1).
2. The method for weighing the rock debris in real time by circulation metering according to claim 1, wherein the method comprises the following steps of: the rotating mechanism and the metering assembly are both connected with the controller, and the controller is used for controlling the rotating mechanism to rotate and is used for receiving data acquired by the metering assembly and calculating the total weight of the rock debris according to the acquired data.
3. The method for weighing the rock debris in real time by circulation metering according to claim 1, wherein the method comprises the following steps of: the receiving container (1) is a hollow cylinder.
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