Slurry pump for geological core drilling machine

Abstract

A slurry pump for a geological core drilling machine comprises a base and a slurry pump body, a pump cavity is formed in the slurry pump body, a suction inlet is formed in one side of the pump cavity, a discharge outlet is formed in the other side of the pump cavity, and the pump cavity at the suction inlet is communicated with a flushing fluid input pipeline. A first control valve and a second control valve are mounted on the flushing fluid input pipeline, a flushing fluid output pipeline is communicated with the pump cavity at the discharge port, and a third control valve, a fourth control valve and a fifth control valve are mounted on the flushing fluid output pipeline; a slurry suction pipeline is communicated between the flushing fluid input pipeline between the first control valve and the second control valve and the flushing fluid output pipeline between the fourth control valve and the fifth control valve, and a slurry output pipeline is communicated on the flushing fluid output pipeline between the third control valve and the fourth control valve. According to the utility model, not only can flushing fluid be input, but also mud can be discharged, the workload can be reduced, and the drilling efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mud pumps, in particular to a mud pump for a geological core drilling rig. Background Art

[0002] In the process of geological exploration, drilling technology is the main means of obtaining underground rock information. Its efficiency and precision are directly related to the quality and accuracy of exploration results. Among them, geological core drill rigs are important equipment in drilling technology. They use drill bits to break rocks and obtain core samples to analyze the stratification, composition and structure of underground rocks.

[0003] During the drilling process, the mud pump, as one of the key equipment, plays an irreplaceable role. However, the existing mud pump is mainly used to transport mud or water and other flushing fluids into the borehole to cool the drill bit, flush the bottom of the well, and break the rock. The mud discharge after drilling requires the help of additional suction equipment or injection equipment, which is not only time-consuming and labor-intensive, increasing the workload, but also affecting the drilling efficiency, which is not conducive to the smooth progress of the drilling work. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a mud pump for a geological core drilling rig which can realize both the input of flushing liquid and the discharge of mud, thereby helping to reduce workload and improve drilling efficiency in view of the deficiencies in the prior art.

[0005] The technical problem to be solved by the utility model is achieved through the following technical solutions. The utility model is a mud pump for geological core drilling rigs, comprising a base and a mud pump body, a pump chamber for inputting and outputting flushing liquid or mud is arranged in the mud pump body, a suction port is arranged on one side of the pump chamber, a discharge port is arranged on the other side of the pump chamber, a flushing liquid input pipeline for connecting an external flushing liquid supply pipeline is connected to the pump chamber at the suction port, a first control valve and a second control valve are installed on the flushing liquid input pipeline, a flushing liquid output pipeline for flushing liquid output is connected to the pump chamber at the discharge port, and a third control valve, a fourth control valve and a fifth control valve are installed on the flushing liquid output pipeline;

[0006] A mud suction pipeline is connected between the flushing liquid input pipeline between the first control valve and the second control valve and the flushing liquid output pipeline between the fourth control valve and the fifth control valve, and a sixth control valve and a seventh control valve are installed on the mud suction pipeline. A mud output pipeline is connected to the flushing liquid output pipeline between the third control valve and the fourth control valve, and an eighth control valve is installed on the mud output pipeline.

[0007] The technical problem to be solved by the utility model can be further achieved through the following technical scheme. For the mud pump for geological core drilling rigs described above, the first control valve, the second control valve, the third control valve, the fourth control valve, the fifth control valve, the sixth control valve, the seventh control valve and the eighth control valve are all electric valves.

[0008] The technical problem to be solved by the utility model can be further achieved through the following technical scheme. For the mud pump for geological core drilling rigs mentioned above, a valve control box is also installed on the base, a PLC controller is installed in the valve control box, and a touch screen connected to the PLC controller is installed on the valve control box. The first control valve, the second control valve, the third control valve, the fourth control valve, the fifth control valve, the sixth control valve, the seventh control valve, and the eighth control valve are all connected to the output end of the PLC controller.

[0009] The technical problem to be solved by the utility model can be further achieved through the following technical scheme. For the mud pump for geological core drilling rigs described above, pressure sensors are installed on the pump chambers at the suction port and the discharge port, and the pressure sensors are connected to the input end of the PLC controller.

[0010] The technical problem to be solved by the utility model can be further achieved through the following technical solutions. For the mud pump for geological core drilling rigs described above, an audible and visual alarm is also installed on the valve control box, and the audible and visual alarm is connected to the output end of the PLC controller.

[0011] The technical problem to be solved by the utility model can be further achieved through the following technical solution. For the mud pump for geological core drilling rigs described above, quick connectors are connected to the free ends of the flushing liquid input pipeline and the mud output pipeline.

[0012] The technical problem to be solved by the utility model can be further achieved through the following technical solutions. For the mud pump for geological core drilling rigs described above, a filter screen is also installed at the free end of the flushing liquid output pipeline.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The utility model can accurately deliver flushing fluid to the drill bit, cool the drill bit in time, prevent the drill bit from overheating and damage due to long-term work, reduce the friction between the drill bit and the rock, and extend the service life of the drill bit. At the same time, it can also quickly discharge the mud carrying rock cuttings from the borehole to ensure the smooth flow of the borehole, which can not only reduce the wear of the drill bit, but also avoid the decrease in drilling speed caused by the accumulation of rock cuttings;

[0015] 2. The utility model can realize the functional switching of the input of flushing fluid and the discharge of mud through simple operation, making the drilling work more efficient and convenient, helping to reduce the workload of manual operation, reducing labor intensity and improving drilling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A structural schematic diagram of the utility model;

[0017] Figure 2 A schematic diagram of the use state of the utility model for inputting flushing liquid;

[0018] Figure 3 This is a schematic diagram of the use state of the utility model for discharging mud. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Reference Figure 1 A mud pump for a geological core drilling rig comprises a base 1 and a mud pump body 2. A pump chamber 3 for inputting and outputting flushing liquid or mud is arranged in the mud pump body 2. The mud pump body 2 adopts the mud pump body 2 in the prior art, and mainly comprises a power end and a hydraulic end. The power end is the core part of the mud pump, and is usually composed of a power machine (such as an electric motor or a diesel engine) and a reduction transmission device. The power machine provides rotational power, and the reduction transmission device converts this power into a speed and torque suitable for the operation of the mud pump, and drives the main shaft of the pump to rotate; the hydraulic end is the working part of the mud pump, and mainly comprises a pump cylinder, a piston (or a plunger), etc. The pump chamber 3 is arranged in the pump cylinder, and is used to cooperate with the piston to realize the suction and discharge operations of the mud pump;

[0021] Specifically, a suction port is provided on one side of the pump chamber 3, and a discharge port is provided on the other side of the pump chamber 3. A flushing liquid input pipeline 4 for connecting an external flushing liquid supply pipeline is connected to the pump chamber 3 at the suction port, a first control valve 8 and a second control valve 9 are installed on the flushing liquid input pipeline 4, a flushing liquid output pipeline 5 for flushing liquid output is connected to the pump chamber 3 at the discharge port, and a third control valve 10, a fourth control valve 11 and a fifth control valve 12 are installed on the flushing liquid output pipeline 5; the flushing liquid input pipeline 4 is used to suck external flushing liquid into the pump chamber 3, and the flushing liquid output pipeline 5 is used to output the flushing liquid sucked into the pump chamber 3 to the outside, specifically, the flushing liquid is transported to the drill bit through the flushing liquid output pipeline 5 to cool the drill bit in time; the first control valve 8 and the second control valve 9 are used to control the on-off of the flushing liquid input pipeline 4 as needed, and the third control valve 10, the fourth control valve 11 and the fifth control valve 12 are used to control the flushing liquid output pipeline 5 as needed, and then the flushing liquid input operation is realized through the flushing liquid input pipeline 4 and the flushing liquid output pipeline 5;

[0022] A mud suction pipe 6 is connected between the flushing liquid input pipe 4 between the first control valve 8 and the second control valve 9 and the flushing liquid output pipe 5 between the fourth control valve 11 and the fifth control valve 12, and a sixth control valve 13 and a seventh control valve 14 are installed on the mud suction pipe 6. A mud output pipe 7 is connected to the flushing liquid output pipe 5 between the third control valve 10 and the fourth control valve 11, and an eighth control valve 15 is installed on the mud output pipe 7; the mud suction pipe 6 is used to cooperate with the flushing liquid input pipe 4 and the flushing liquid output pipe 5 to realize the operation of sucking mud, specifically to suck the mud in the borehole into the pump chamber 3, and the mud output pipe 7 is used to cooperate with the flushing liquid output pipe 5 to realize the output operation of mud, specifically to output the mud in the pump chamber 3 to the outside; the sixth control valve 13 and the seventh control valve 14 are used to control the on-off of the mud suction pipe 6 as needed, and the eighth control valve 15 is used to control the on-off of the mud output pipe 7 as needed, and then the mud suction pipe 6 and the mud output pipe 7 are cooperated to realize the mud discharge operation;

[0023] Preferably, the first control valve 8, the second control valve 9, the third control valve 10, the fourth control valve 11, the fifth control valve 12, the sixth control valve 13, the seventh control valve 14 and the eighth control valve 15 are all electric valves, which are easy to operate and have fast response.

[0024] In order to further simplify the operation, a valve control box 16 is also installed on the base 1, and a PLC controller is installed in the valve control box 16. A touch screen 17 connected to the PLC controller is installed on the valve control box 16. The first control valve 8, the second control valve 9, the third control valve 10, the fourth control valve 11, the fifth control valve 12, the sixth control valve 13, the seventh control valve 14, and the eighth control valve 15 are all connected to the output end of the PLC controller, so that instructions can be input to the PLC controller using the touch screen 17 as needed, and then the switching actions of the first control valve 8, the second control valve 9, the third control valve 10, the fourth control valve 11, the fifth control valve 12, the sixth control valve 13, the seventh control valve 14, and the eighth control valve 15 are controlled by the PLC controller.

[0025] In order to ensure safety, pressure sensors 19 are installed on the pump chamber 3 at the suction port and the discharge port. The pressure sensor 19 is connected to the input end of the PLC controller, so that the pressure in the pump chamber 3 can be monitored in real time through the pressure sensor 19, so as to suspend the operation when the pressure value is too large, eliminate hidden dangers and ensure safety; the PLC controller can receive the pressure signal detected by the pressure sensor 19 in real time and convert it into a pressure value to be displayed on the touch screen 17 for easy viewing;

[0026] Preferably, an audible and visual alarm 18 is also installed on the valve control box 16, and the audible and visual alarm 18 is connected to the output end of the PLC controller, and is used in an emergency (such as when a certain control valve does not respond or the pressure sensor 19 detects that the pressure is too high), the PLC controller controls the audible and visual alarm 18 to send an audible and visual alarm signal to remind the operator;

[0027] Of course, the PLC control program of the PLC controller involved is written by a technician in this field according to the requirements of the utility model using the PLC control program in the prior art. It only needs to be able to achieve the requirements of the utility model and is not within the scope of protection of the utility model.

[0028] In actual use, quick connectors 20 are connected to the free ends of the flushing liquid input pipe 4 and the mud output pipe 7, which are convenient for quick connection with external pipes to improve efficiency; a filter screen 21 is also installed at the free end of the flushing liquid output pipe 5 to avoid sucking in larger particles in the borehole when sucking mud, thereby playing a certain protective role on the mud pump body 2.

[0029] Reference Figure 2When the flushing liquid input operation is performed, the first control valve 8, the second control valve 9, the third control valve 10, the fourth control valve 11 and the fifth control valve 12 are opened, and the sixth control valve 13, the seventh control valve 14 and the eighth control valve 15 are closed. At this time, the mud pump body 2 is working, and the flow path of the flushing liquid is input from the outside to the flushing liquid input pipeline 4, flows through the first control valve 8 and the second control valve 9, and is input into the pump chamber 3 through the flushing liquid input pipeline 4, and then input from the pump chamber 3 to the flushing liquid output pipeline 5, flows through the third control valve 10, the fourth control valve 11 and the fifth control valve 12, and is output to the outside into the borehole through the flushing liquid output pipeline 5.

[0030] Reference Figure 3 When performing mud discharge operation, the fifth control valve 12, the seventh control valve 14, the sixth control valve 13, the second control valve 9, the third control valve 10 and the eighth control valve 15 are opened, and the first control valve 8 and the fourth control valve 11 are closed. At this time, the mud pump body 2 is working, and the flow path of the mud is: input from the borehole to the flushing liquid output pipeline 5, flows through the fifth control valve 12, and is input into the mud suction pipeline 6 through the flushing liquid output pipeline 5, flows through the seventh control valve 14 and the sixth control valve 13, and is input into the flushing liquid input pipeline 4 through the mud suction pipeline 6, flows through the second control valve 9, and is input into the pump chamber 3 through the flushing liquid input pipeline 4, and then is input into the flushing liquid output pipeline 5 from the pump chamber 3, flows through the third control valve 10, and is input into the mud output pipeline 7 through the flushing liquid output pipeline 5, flows through the eighth control valve 15, and is discharged outward through the mud output pipeline 7.

Claims

1. A mud pump for a geological core drilling rig, characterized in that: The invention comprises a base and a mud pump body, wherein a pump chamber for inputting and outputting flushing liquid or mud is arranged in the mud pump body, a suction port is arranged on one side of the pump chamber, a discharge port is arranged on the other side of the pump chamber, a flushing liquid input pipeline for connecting an external flushing liquid supply pipeline is connected to the pump chamber at the suction port, a first control valve and a second control valve are installed on the flushing liquid input pipeline, a flushing liquid output pipeline for outputting flushing liquid is connected to the pump chamber at the discharge port, and a third control valve, a fourth control valve and a fifth control valve are installed on the flushing liquid output pipeline; A mud suction pipeline is connected between the flushing liquid input pipeline between the first control valve and the second control valve and the flushing liquid output pipeline between the fourth control valve and the fifth control valve, and a sixth control valve and a seventh control valve are installed on the mud suction pipeline. A mud output pipeline is connected to the flushing liquid output pipeline between the third control valve and the fourth control valve, and an eighth control valve is installed on the mud output pipeline.

2. The mud pump for geological core drilling rig according to claim 1, characterized in that: The first control valve, the second control valve, the third control valve, the fourth control valve, the fifth control valve, the sixth control valve, the seventh control valve and the eighth control valve are all electric valves.

3. The mud pump for geological core drilling rig according to claim 2, characterized in that: A valve control box is also installed on the base, a PLC controller is installed in the valve control box, a touch screen connected to the PLC controller is installed on the valve control box, and the first control valve, the second control valve, the third control valve, the fourth control valve, the fifth control valve, the sixth control valve, the seventh control valve, and the eighth control valve are all connected to the output end of the PLC controller.

4. The mud pump for geological core drilling rig according to claim 3, characterized in that: Pressure sensors are installed on the pump chambers at the suction port and the discharge port, and the pressure sensors are connected to the input end of the PLC controller.

5. The mud pump for geological core drilling rig according to claim 3, characterized in that: An audible and visual alarm is also installed on the valve control box, and the audible and visual alarm is connected to the output end of the PLC controller.

6. The mud pump for geological core drilling rig according to claim 1, characterized in that: The free ends of the flushing liquid input pipeline and the mud output pipeline are both connected with quick connectors.

7. The mud pump for geological core drilling rig according to claim 1 or 6, characterized in that: A filter screen is also installed at the free end of the flushing liquid output pipeline.

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