A drilling pump protection system with automatic pressure regulation for coal mines

Abstract

The invention discloses an automatic pressure-regulating drilling pump protection system for coal mines, comprising a drilling platform and a master control system, characterized in that: a drilling pump is arranged inside the drilling platform, a pumping pipe is arranged below the drilling platform, a mesh is arranged inside one end of the pumping pipe close to the drilling pump, one end of the pumping pipe is sleeved with the drilling pump, the other end of the pumping pipe passes through the drilling platform and is located inside the drilling well, the pumping pipe is divided into an upper and a lower part, a universal joint is arranged between the two parts of the pumping pipe, a plurality of air holes are evenly opened on the outer wall of the pumping pipe, air plates are slidably connected in a plurality of the air holes, the pumping pipe is divided into a plurality of parts, baffles are slidably connected between adjacent pumping pipes, an atomizer is arranged in each part of the pumping pipe, and the invention has the characteristics of automatically extracting accumulated water and using the accumulated water to process coal ash, while adjusting the power of extracting accumulated water according to the coal ash content.

Description

Technical Field

[0001] The invention relates to the technical field of drilling pumps, in particular to an automatic pressure regulating drilling pump protection system for coal mines. Background Art

[0002] The work of drilling holes in the ground using mechanical equipment or manpower is called drilling. It usually refers to the engineering of drilling wells and large-diameter water supply wells for the exploration or development of oil, coal, and natural gas minerals. Drilling is widely used in national economic construction. Rotary drilling is widely used in oil (gas) fields in my country. The main equipment includes derricks, operating platforms, diesel engines, drilling rigs, drilling tools, mud pumps, generators and testing equipment, as well as fuel tanks, boilers, etc. The main problem encountered in the existing coal mine drilling work is that it is difficult to deal with the accumulated water in the underground water accumulation area. If the accumulated water is not extracted in time in the water accumulation area, it will greatly affect the mining process. In addition, as the drilling goes deeper, the amount of coal ash in the well will gradually increase. Even if the operator wears a mask, it will still affect breathing. Therefore, it is necessary to design a coal mine automatic pressure regulating drilling pump protection system that automatically extracts the accumulated water and uses the accumulated water to treat the coal ash, while adjusting the extraction power according to the coal ash content. Summary of the invention

[0003] The object of the present invention is to provide a drilling pump protection system with automatic pressure regulation for coal mines to solve the problems raised in the above-mentioned background technology.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: a drilling pump protection system with automatic pressure regulation for coal mines, comprising a drilling platform and a master control system, characterized in that a drilling pump is arranged inside the drilling platform, a pumping pipe is arranged below the drilling platform, a mesh is arranged inside the end of the pumping pipe close to the drilling pump, one end of the pumping pipe is sleeved with the drilling pump, the other end of the pumping pipe passes through the drilling platform and is located inside the drilling well, the pumping pipe is divided into two parts, an upper and a lower part, and a universal joint is arranged between the two parts of the pumping pipe.

[0005] According to the above technical solution, a plurality of air holes are evenly opened on the outer wall of the exhaust pipe, and air plates are slidably connected in a plurality of the air holes. The exhaust pipe is divided into a plurality of parts, and baffles are slidably connected between adjacent exhaust pipes. An atomizer is arranged in each exhaust pipe.

[0006] According to the above technical solution, the master control system includes a driving subsystem, a dust reduction subsystem, and an auxiliary subsystem;

[0007] The driving subsystem is used to supply power to the drilling pump, the dust reduction subsystem is used to remove the coal ash in the coal mine, and the auxiliary subsystem is used to assist the dust reduction subsystem in its operation.

[0008] According to the above technical solution, the driving subsystem includes a water pumping module, the dust suppression subsystem includes a camera module, and the auxiliary subsystem includes a gas circulation module;

[0009] The pumping module is used to control the drilling pump to pump out the accumulated water in the coal mine through the pumping pipe, the camera module is used to take pictures of the gauze, and the gas circulation module is used to circulate the air in the coal mine.

[0010] According to the above technical solution, the water pumping module includes a filtering submodule, the camera module includes a computing submodule, and the gas circulation module includes a regulating submodule;

[0011] The function of the filtering submodule is to filter the ash-containing accumulated water extracted from the coal mine by means of the gauze, and to intercept the coal ash on the gauze.

[0012] According to the above technical solution, the filtering submodule includes a collecting unit and a circulating unit, the calculating submodule includes a component storage unit, an atomizing unit, an opening and closing unit, and a pressurizing unit, and the regulating submodule includes a time regulating unit and a power regulating unit;

[0013] The collecting unit is used to collect the coal ash intercepted on the gauze, the circulating unit is used to store the filtered accumulated water for use in subsequent steps, the portion storage unit is used to introduce the filtered accumulated water portion into each drainage pipe, the atomizing unit is used to start the atomizer to atomize the water in each drainage pipe, the opening and closing unit is used to control the opening and closing of the air plate, the pressurizing unit is used to discharge the atomized water vapor through the air holes, the time adjustment unit is used to adjust the time for interval extraction of accumulated water in the coal mine, and the power adjustment unit is used to adjust the extraction power of the drilling pump.

[0014] According to the above technical solution, the specific operation steps of the master control system are as follows:

[0015] S1: The operator drags the lower part of the drainage pipe into the water accumulation area in the coal mine;

[0016] S2: Start the drilling pump to extract the water in the waterlogged area through the pumping pipe. The interval time for starting the pump to extract the water can be set by the operator.

[0017] S3: Use a gauze to filter and intercept the coal ash in the extracted stagnant water, and store the filtered stagnant water separately;

[0018] S4: taking a photo of the screen after filtration and calculating the area ratio of the screen occupied by the coal ash;

[0019] S5: The collected filtered water is divided into several portions and introduced into the drainage pipe. At this time, the bottom baffle is closed. After the first portion of water is introduced, the baffle above the bottom baffle is closed, and so on. The discharge volume is manually controlled so that the water volume at the bottom is the largest and decreases gradually upwards;

[0020] S6: atomizing a plurality of portions of accumulated water through an atomizer;

[0021] S7: Open the air holes to discharge the atomized water vapor to the wall of the coal mine, and adsorb and bond the coal ash floating in the coal mine;

[0022] S8: According to the coal ash intercepted by the filter, adjust the interval time for pumping out the accumulated water and the power of the drilling pump.

[0023] According to the above technical solution, the time interval for the next extraction of accumulated water in step S8 is calculated as follows:

[0024]

[0025] In the formula, T is the time for the next water extraction, t is the time interval between the current water extraction, D is the diameter of the current coal mine, S is 占 is the area occupied by fly ash on the mesh, S 总 is the total area of ​​the gauze, H is the current depth of the coal mine, and it can be obtained from the formula that the time interval for the next water extraction is inversely proportional to the current depth of the coal mine, and is directly proportional to the area of ​​the gauze occupied by the coal ash. That is, the deeper the current coal mine, the more water there is in the water accumulation area. As the drilling goes deeper, the more coal ash floats on the well wall. It is necessary to shorten the time interval for extracting the accumulated water to ensure the smooth progress of the drilling work.

[0026] According to the above technical solution, the adjusted extraction power of the drilling pump in step S8 is calculated as follows:

[0027]

[0028] In the formula, P is the adjusted extraction power of the current drilling pump, w is the current working time of the drilling pump, P1 is the current drilling pump power, H is the current coal mine depth, T is the time for the next water extraction, and d is the diameter of the drainage pipe. It can be obtained from the current formula that the adjusted extraction power of the drilling pump is inversely proportional to the adjusted extraction interval, that is, the faster the water accumulates, the lower the time interval for extracting the accumulated water, and relatively speaking, a larger power is required to correspond to a large amount of accumulated water, so as to ensure that the accumulated water in the mine is quickly extracted.

[0029] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the present invention realizes the intermittent extraction of the accumulated water in the water accumulation area of ​​the drilling well by providing a drilling platform and a master control system, and adsorbs the coal ash in the air underground according to the content of the coal ash in the extracted accumulated water. As the drilling goes deeper, the extraction power of the drilling pump and the time for interval extraction of the accumulated water are adjusted in time to ensure smooth drilling work. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0031] Figure 1 It is a schematic diagram of a module of the present invention;

[0032] Figure 2 It is a schematic diagram of the three-dimensional structure of the pumping and exhausting pipe of the present invention;

[0033] In the figure: 1. Exhaust pipe. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] See also Figure 1-2 The present invention provides a technical solution: a drilling pump protection system with automatic pressure regulation for coal mines, including a drilling platform and a master control system, characterized in that a drilling pump is arranged inside the drilling platform, a pumping pipe is arranged below the drilling platform, a gauze is arranged inside the end of the pumping pipe close to the drilling pump, one end of the pumping pipe is sleeved with the drilling pump, the other end of the pumping pipe passes through the drilling platform and is located inside the drilling well, the pumping pipe is divided into upper and lower parts, and a universal joint is arranged between the two parts of the pumping pipe;

[0036] A plurality of air holes are evenly opened on the outer wall of the exhaust pipe, and air plates are slidably connected in the air holes. The exhaust pipe is divided into a plurality of parts, and baffles are slidably connected between adjacent exhaust pipes. An atomizer is arranged in each exhaust pipe.

[0037] The overall control system includes a driving subsystem, a dust suppression subsystem, and an auxiliary subsystem;

[0038] The driving subsystem is used to supply power to the drilling pump, the dust suppression subsystem is used to remove the coal ash in the coal mine, and the auxiliary subsystem is used to assist the dust suppression subsystem in its operation;

[0039] The driving subsystem includes a water pumping module, the dust suppression subsystem includes a camera module, and the auxiliary subsystem includes a gas circulation module;

[0040] The water pumping module is used to control the drilling pump to pump out the accumulated water in the coal mine through the pumping and drainage pipe. The camera module is used to take pictures of the gauze. The gas circulation module is used to circulate the air in the coal mine.

[0041] The water pumping module includes a filtering submodule, the camera module includes a calculating submodule, and the gas circulation module includes a regulating submodule;

[0042] The function of the filter submodule is to filter the ash-containing water extracted from the coal mine through the gauze and intercept the coal ash on the gauze;

[0043] The filtering submodule includes a collecting unit and a circulating unit, the calculating submodule includes a component storage unit, an atomizing unit, an opening and closing unit, and a pressurizing unit, and the regulating submodule includes a time regulating unit and a power regulating unit;

[0044] The collection unit is used to collect the coal ash intercepted on the gauze, the circulation unit is used to store the filtered accumulated water for use in subsequent steps, the quantity storage unit is used to introduce the filtered accumulated water quantity into each extraction and drainage pipe, the atomization unit is used to start the atomizer to atomize the water in each extraction and drainage pipe, the opening and closing unit is used to control the opening and closing of the air plate, the pressurizing unit is used to discharge the atomized water vapor through the air hole, the time adjustment unit is used to adjust the interval time for extracting the accumulated water in the coal mine, and the power adjustment unit is used to adjust the extraction power of the drilling pump;

[0045] The specific operation steps of the master control system are as follows:

[0046] S1: The operator drags the lower part of the drainage pipe into the water accumulation area in the coal mine;

[0047] S2: Start the drilling pump to extract the water in the waterlogged area through the pumping pipe. The interval time for starting the pump to extract the water can be set by the operator.

[0048] S3: Use a gauze to filter and intercept the coal ash in the extracted stagnant water, and store the filtered stagnant water separately;

[0049] S4: taking a photo of the screen after filtration and calculating the area ratio of the screen occupied by the coal ash;

[0050] S5: The collected filtered water is divided into several portions and introduced into the drainage pipe. At this time, the bottom baffle is closed. After the first portion of water is introduced, the baffle above the bottom baffle is closed, and so on. The discharge volume is manually controlled so that the water volume at the bottom is the largest and decreases gradually upwards;

[0051] S6: atomizing a plurality of portions of accumulated water through an atomizer;

[0052] S7: Open the air holes to discharge the atomized water vapor to the wall of the coal mine, and adsorb and bond the coal ash floating in the coal mine;

[0053] S8: According to the coal ash intercepted by the filter, the interval time for pumping out the accumulated water and the power of the drilling pump are adjusted;

[0054] The time interval for the next water extraction in step S8 is calculated as follows:

[0055]

[0056] In the formula, T is the time for the next water extraction, t is the time interval between the current water extraction, D is the diameter of the current coal mine, S is 占 is the area occupied by fly ash on the mesh, S 总 is the total area of ​​the gauze, H is the current depth of the coal mine. From this formula, it can be obtained that the time interval for the next water extraction is inversely proportional to the current depth of the coal mine and is proportional to the area of ​​the gauze occupied by the coal ash. That is, if the current coal mine is deeper, there will be more water in the water accumulation area. As the drilling goes deeper, there will be more coal ash floating on the well wall. It is necessary to shorten the time interval for water extraction to ensure the smooth progress of drilling work.

[0057] The adjusted extraction power of the drilling pump in step S8 is calculated as follows:

[0058]

[0059] In the formula, P is the adjusted extraction power of the current drilling pump, w is the current working time of the drilling pump, P1 is the current drilling pump power, H is the current coal mine depth, T is the time for the next water extraction, and d is the diameter of the drainage pipe. It can be obtained from the current formula that the adjusted extraction power of the drilling pump is inversely proportional to the adjusted extraction interval, that is, the faster the water accumulates, the lower the time interval for extracting the accumulated water, and relatively speaking, a larger power is required to correspond to a large amount of accumulated water, so as to ensure that the accumulated water in the mine is quickly extracted.

[0060] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0061] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A drilling pump protection system with automatic pressure regulation for coal mines, comprising a drilling platform and a master control system, characterized in that: A drilling pump is arranged inside the drilling platform, and a pumping pipe (1) is arranged below the drilling platform. A mesh is arranged inside the end of the pumping pipe (1) close to the drilling pump. One end of the pumping pipe (1) is sleeved with the drilling pump, and the other end of the pumping pipe (1) passes through the drilling platform and is located inside the well. The pumping pipe (1) is divided into two parts, an upper part and a lower part, and a universal joint is arranged between the two parts of the pumping pipe (1); A plurality of air holes are evenly arranged on the outer wall of the exhaust pipe (1), and air plates are slidably connected in a plurality of the air holes. The exhaust pipe (1) is divided into a plurality of parts, and baffles are slidably connected between adjacent exhaust pipes (1), and an atomizer is arranged in each exhaust pipe (1); The master control system includes a driving subsystem, a dust suppression subsystem, and an auxiliary subsystem; The driving subsystem is used to supply power to the drilling pump, the dust reduction subsystem is used to remove the coal ash in the coal mine, and the auxiliary subsystem is used to assist the dust reduction subsystem in its operation; The driving subsystem includes a water pumping module, the dust suppression subsystem includes a camera module, and the auxiliary subsystem includes a gas circulation module; The water pumping module is used to control the drilling pump to pump out the accumulated water in the coal mine through the pumping pipe (1), the camera module is used to take pictures of the gauze, and the gas circulation module is used to circulate the air in the coal mine; The pumping module includes a filtering submodule, the camera module includes a calculating submodule, and the gas circulation module includes a regulating submodule; The function of the filtering submodule is to filter the ash-containing water extracted from the coal mine by means of the gauze, and to intercept the coal ash on the gauze; The filtering submodule includes a collecting unit and a circulating unit, the calculating submodule includes a component storage unit, an atomizing unit, an opening and closing unit, and a pressurizing unit, and the regulating submodule includes a time regulating unit and a power regulating unit; The collecting unit is used to collect the coal ash intercepted on the gauze, the circulating unit is used to store the filtered accumulated water for use in subsequent steps, the quantity storage unit is used to introduce the filtered accumulated water quantity into each extraction and drainage pipe (1), the atomizing unit is used to start the atomizer to atomize the water in each extraction and drainage pipe (1), the opening and closing unit is used to control the opening and closing of the air plate, the pressurizing unit is used to discharge the atomized water vapor through the air hole, the time adjustment unit is used to adjust the time for interval extraction of accumulated water in the coal mine, and the power adjustment unit is used to adjust the extraction power of the drilling pump.

2. The automatic pressure regulating drilling pump protection system for coal mines according to claim 1 is characterized in that: The specific operation steps of the master control system are as follows: S1: An operator drags the lower part of the drainage pipe (1) into the water accumulation area in the coal mine; S2: Start the drilling pump to extract the accumulated water in the water accumulation area through the pumping pipe (1). The interval time for starting the pump to extract the accumulated water can be set by the operator. S3: Use a gauze to filter and intercept the coal ash in the extracted stagnant water, and store the filtered stagnant water separately; S4: taking a photo of the screen after filtration and calculating the area ratio of the screen occupied by the coal ash; S5: The collected filtered water is divided into several portions and introduced into the drainage pipe (1). At this time, the bottom baffle is closed. After the first portion of water is introduced, the baffle above the bottom baffle is closed, and so on. The discharge volume is manually controlled so that the amount of water at the bottom is the largest and decreases gradually upwards; S6: atomizing a plurality of portions of accumulated water through an atomizer; S7: Open the air holes to discharge the atomized water vapor to the wall of the coal mine, and adsorb and bond the coal ash floating in the coal mine; S8: According to the coal ash intercepted by the filter, adjust the interval time for pumping out the accumulated water and the power of the drilling pump.

3. The automatic pressure regulating drilling pump protection system for coal mines according to claim 2 is characterized in that: The time interval for the next extraction of accumulated water in step S8 is calculated as follows: In the formula, T is the time for the next water extraction, t is the time interval between the current water extraction, D is the diameter of the current coal mine, S is 占 is the area occupied by fly ash on the gauze, S 总 is the total area of ​​the gauze, H is the current depth of the coal mine, and it can be obtained from the formula that the time interval for the next water extraction is inversely proportional to the current depth of the coal mine, and is directly proportional to the area of ​​the gauze occupied by the coal ash. That is, the deeper the current coal mine, the more water there is in the water accumulation area. As the drilling goes deeper, the more coal ash floats on the well wall. It is necessary to shorten the time interval for extracting the accumulated water to ensure the smooth progress of the drilling work.

4. The automatic pressure regulating drilling pump protection system for coal mines according to claim 3 is characterized in that: The adjusted extraction power of the drilling pump in step S8 is calculated as follows: In the formula, P is the adjusted extraction power of the current drilling pump, w is the current working time of the drilling pump, P1 is the current drilling pump power, H is the current coal mine depth, T is the time for the next water extraction, and d is the diameter of the extraction pipe (1). It can be obtained from the current formula that the adjusted extraction power of the drilling pump is inversely proportional to the adjusted extraction interval, that is, the faster the water is filled, the lower the time interval for extracting the water, and relatively more power is required to correspond to a large amount of water, so as to ensure that the underground water is quickly extracted.

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