Environment-friendly recycling device for oil-based drilling fluid

Abstract

The invention discloses an environment-friendly recycling device for oil-based drilling fluid, and relates to the technical field of petroleum drilling. The solid-liquid separation mechanism is located in one end of the shell and used for filtering solid impurities in the drilling fluid; the control panel is connected with the shell and is used for integrally controlling the equipment; the solid waste is ingeniously used as a filtering medium, solid impurities in the drilling fluid are effectively removed, the separation effect is further improved through the stacking and filtering effects of the solid waste, the solid waste is gradually stacked in the filtering process to form a multi-layer filtering barrier, particle impurities in the drilling fluid can be more thoroughly intercepted, and the filtering effect is improved. By means of the design, the limitation of a single filtering medium in a traditional filtering mode is avoided, the replacement frequency and the maintenance cost of the filtering medium are reduced, and the economical efficiency and the environmental protection property of the whole treatment process are further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of oil drilling, and specifically provides an environmentally friendly recycling and treatment device for oil-based drilling fluids. Background Art

[0002] In drilling operations, the treatment of oil-based drilling fluids has always been an important issue faced by the industry. If untreated drilling fluids are directly discharged, they will cause serious environmental pollution. Drilling fluids contain a large amount of oil substances, chemical additives, and solid impurities. After these components enter the soil and water bodies, they will have long-term negative impacts on the ecosystem, including soil pollution, water eutrophication, and damage to biodiversity. Therefore, it is necessary to centrally recycle and treat the discharged drilling fluids. First of all, solid-liquid separation treatment is required to remove the impurities inside the drilling fluids.

[0003] Traditional methods for treating oil-based drilling fluids mainly rely on a single filtering medium (such as filter screens, filter cloths, etc.) for solid-liquid separation. However, these methods have many limitations. Firstly, the pore size of a single filtering medium is fixed, making it difficult to effectively intercept solid particles of different particle sizes in the drilling fluid, especially tiny particles, resulting in unsatisfactory separation effects. Secondly, the filtering medium is prone to clogging during use, requiring frequent replacement or cleaning, which increases the maintenance cost and labor intensity. In addition, traditional methods cannot make full use of the solid waste in the drilling fluid, causing resource waste and being unfavorable for environmental protection.

[0004] With the continuous improvement of environmental protection requirements and the need to control drilling operation costs, there is an urgent need in the industry for an oil-based drilling fluid treatment device that can efficiently separate solid impurities, reduce maintenance costs, and achieve resource recycling. Therefore, the present invention proposes an environmentally friendly recycling and treatment device for oil-based drilling fluids. By using solid waste as the filtering medium, it can not only effectively remove solid impurities in the drilling fluid, but also further improve the separation effect through the accumulation and filtering of solid waste. At the same time, it realizes automatic discharging and resource recycling, which has important practical significance and broad application prospects. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides an environmentally friendly recycling and treatment device for oil-based drilling fluids, which solves the problems proposed in the background art.

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions: An environmentally friendly recycling and treatment device for oil-based drilling fluids, comprising: A housing; A solid-liquid separation mechanism, which is located inside one end of the housing and is used for filtering solid impurities in the drilling fluid; A control panel, which is connected to the housing and is used for overall control of the equipment; A distillation mechanism, which is internally connected to the solid-liquid separation mechanism and is used for distilling drilling fluid to further separate the solid and liquid in the drilling fluid; A precipitation mechanism, which is internally connected to the distillation mechanism and is used for condensing and precipitating the oil-water mixed steam discharged from the distillation mechanism; A drainage mechanism, which is located on the back of the housing and is used for discharging the water inside the precipitation mechanism.

[0007] Preferably, the solid-liquid separation mechanism includes a filtration component and a fine filtration component. The filtration component is used for the preliminary solid-liquid separation of the drilling fluid, and the fine filtration component is used for further solid-liquid separation of the drilling fluid processed by the filtration component; The filtration component includes a cylinder installed on the surface of the housing. The outer end of the output end of the cylinder is connected with a lifting plate. Both ends of the lifting plate are connected with one end of the top of a connecting rod. A lifting block is sleeved on the outer wall of the connecting rod. A moving block is arranged on one side of the lifting block. The moving block is slidably matched with the surface of the housing. The contact surface between the moving block and the lifting block is in a slope shape. One side of the moving block is connected with the outer wall of the housing through a first spring. A filter plate is arranged on one side of the moving block. An inlet is arranged on one side of the filter plate. Through the coordinated movement of the cylinder driving the lifting plate, the connecting rod and the lifting block, and using the slope contact between the lifting block and the moving block to push the moving block to move horizontally, the solid impurities on the filter plate are driven to move towards the discharge port and discharged, realizing efficient solid-liquid separation and automatic slag discharge functions, avoiding the problem of frequent manual cleaning of impurities in the traditional filtration method, improving the operation efficiency and automation degree of the equipment, and reducing the manual maintenance cost.

[0008] Preferably, the filter plates are distributed in a staggered manner from top to bottom and there are multiple filter plates. The surface of the filter plates is provided with hole grooves, and the inside of the filter plates is communicated with the inside of the diversion chamber. One side of the filter plates is provided with a discharge plate, and a discharge port is arranged below the discharge plate. The inside of the filter plates is provided with a top plate, and the surface of the top plate is provided with a plurality of ejector pins. Each ejector pin corresponds to a filter hole on the surface of the filter plate. Four ends of the bottom of the top plate are connected with micro air cylinders. The micro air cylinders are embedded in the bottom of the filter plates and are communicated with an external air source. When the drilling fluid passes through the filter plates, solid impurities can be intercepted layer by layer, and the liquid flows into the diversion chamber through the hole grooves, further improving the solid-liquid separation effect. At the same time, the arrangement of the discharge plate and the discharge port facilitates the discharge of the intercepted solid impurities, realizing the organic combination of efficient solid-liquid separation and automatic slag discharge functions, effectively improving the operation efficiency and maintenance convenience of the equipment. When the filter holes on the surface of the filter plates are blocked by larger impurity particles, the micro air cylinders inside the filter plates are controlled by external equipment to expand and contract regularly. When the micro air cylinders extend, the air cylinders can push the top plate upward, and then the top plate can drive the ejector pins to move upward, so that the ejector pins can eject the larger impurity particles inside the filter holes on the surface of the filter plates, thus preventing the filter holes on the surface of the filter plates from being blocked.

[0009] Preferably, the fine filtration assembly includes a piston plate connected to one end of the bottom of the connecting rod. The piston plate is in sliding contact with the inner wall of the pressure chamber. One side of the pressure chamber is communicated with the connecting chamber through a hole groove, and the inside of the connecting chamber is communicated with the diversion chamber. A first sealing block is arranged on the inner side of the hole groove on one side of the pressure chamber. A second spring is arranged on one side of the first sealing block, and one side of the second spring is connected with a first fixing block. The first fixing block is installed inside the pressure chamber. A hole groove is arranged at the bottom of the pressure chamber, and a second sealing block is arranged at the bottom of the hole groove. A third spring is arranged at the bottom of the second sealing block, and the bottom of the third spring is connected with the top of the water outlet chamber. A pressure plate is arranged at the top of the water outlet chamber. By using the opening and closing of the first sealing block and the second sealing block and the elastic actions of the second spring and the third spring, the further fine filtration of the preliminarily filtered drilling fluid is realized. This design can effectively remove the remaining fine particle impurities in the drilling fluid, improve the purity of the drilling fluid, and at the same time, through the structures of the pressure plate and the water outlet chamber, ensure the stable discharge of the filtered liquid, further improving the filtration efficiency and reliability of the whole device.

[0010] Preferably, filtering holes are provided in the middle and at both ends of the pressure plate. The surfaces of both ends of the pressure plate are attached to the top surface of the water outlet chamber. A fourth spring is provided at the bottom of the pressure plate. Pressure sensors are provided below both ends of the pressure plate. The pressure sensors are signal-connected to the remote control terminal. The oil-water mixture passing through the pressure chamber can be further filtered when passing through the pressure plate, while ensuring the stability and tightness of the filtering process. The fourth spring at the bottom of the pressure plate can provide elastic support for the pressure plate, enabling it to maintain appropriate elastic deformation during the filtering process, so as to better adapt to the filtering requirements under different pressures, ensure that the filtering holes will not be blocked and the pressure will not be too high, and can also automatically adjust the opening and closing degree of the filtering holes when the pressure changes, ensuring the filtering efficiency.

[0011] In addition, the pressure sensors provided below both ends of the pressure plate can monitor the pressure changes during the filtering process in real time and transmit the data to the remote control terminal. This intelligent design enables the operator to remotely monitor the operation status of the equipment, promptly detect and handle possible blockages or other abnormal conditions, greatly improving the automation degree and operation reliability of the equipment. When the pressure sensors detect an abnormal increase in pressure, it may mean that the filtering holes are blocked. At this time, the operator can remotely control the equipment to perform corresponding cleaning or maintenance operations to avoid equipment damage or a decrease in filtering efficiency caused by blocked filtering holes.

[0012] The connection design between the bottom of the pressure chamber and one end of the first connecting pipe ensures that the oil-water mixture after fine filtration can smoothly flow into the subsequent treatment link, providing guarantee for the continuous operation of the entire oil-based drilling fluid treatment device. This connection structure not only ensures the smooth flow of the liquid, but also enables the entire filtering system to closely cooperate with subsequent links such as distillation and precipitation, forming an efficient and collaborative treatment process, further improving the treatment effect and quality of the oil-based drilling fluid.

[0013] Preferably, the distillation mechanism includes a flow splitting chamber, which is internally connected to the second preheating chamber through a preheating pipe. The preheating pipe is arranged inside the first preheating chamber. The first preheating chamber is located between the second preheating chamber and the flow splitting chamber. The inside of the second preheating chamber is internally connected to the inside of the distillation chamber through a heat exchange pipe. The heat exchange pipe is located inside the cavity between the distillation chamber and the second preheating chamber, and a burner is installed on one side of the heat exchange pipe. A heat exchange plate is arranged at the bottom of the distillation chamber. The heat exchange plate has a multi-bent structure. The flow splitting chamber is responsible for evenly distributing the oil-water mixture after solid-liquid separation. The preheating pipe is arranged inside the first preheating chamber to preliminarily preheat the mixture and increase its temperature, creating favorable conditions for the subsequent distillation process. The second preheating chamber further heats the mixture to raise its temperature to near the temperature range required for distillation. The heat exchange pipe is located inside the cavity between the distillation chamber and the second preheating chamber. Through cooperation with the burner, efficient heat exchange is carried out on the mixture to make it reach the temperature required for distillation, thereby realizing the rapid vaporization of the oil-water mixture. The design of the multi-bent structure of the heat exchange plate increases the heat exchange area and improves the heat exchange efficiency, enabling the mixture to fully absorb heat and be converted into steam in a short time, further improving the distillation efficiency, providing high-quality steam for the subsequent condensation and precipitation links, and ensuring the efficient operation and treatment effect of the entire oil-based drilling fluid environmental protection recovery and treatment device. A detachable panel is arranged on one side of the distillation mechanism for facilitating the cleaning of impurities remaining after distillation inside.

[0014] Preferably, the precipitation mechanism includes a condensing pipe. One end of the condensing pipe is internally connected to the inside of the distillation chamber. A semi-circular baffle is arranged at one end of the condensing pipe. The condensing pipe is located inside the condensation chamber. The other end of the condensing pipe is internally connected to the inside of the condensed water chamber. The inside of the condensed water chamber is internally connected to the inside of the first precipitation chamber through a connecting valve. The semi-circular baffle at one end of the condensing pipe is beneficial to preventing the liquid inside the condensing pipe from flowing back. There are pore grooves on the surface of the condensed water chamber for exhausting gas.

[0015] Preferably, the inside of the first sedimentation tank is connected to the inside of the second sedimentation tank through a connecting pipe. An oil outlet tank is provided at the top of the second sedimentation tank. Both sides of the top of the oil outlet tank are respectively connected to the inside of the first sedimentation tank and the second sedimentation tank, and the inside of the oil outlet tank is connected to an oil outlet valve. The inside of the first sedimentation tank is connected to the second sedimentation tank through a connecting pipe, enabling the preliminarily sedimented oil-water mixture to further enter the second sedimentation tank for secondary sedimentation separation. This design of two-stage sedimentation effectively improves the separation effect and ensures the full separation of oil and water. The oil outlet tank provided at the top of the second sedimentation tank has both sides of its top respectively connected to the inside of the first sedimentation tank and the second sedimentation tank. This structural design enables the separated oil to overflow smoothly into the oil outlet tank. The inside of the oil outlet tank is connected to an oil outlet valve. By controlling the opening and closing of the oil outlet valve, the separated oil can be conveniently discharged and recycled, realizing the effective recovery and recycling of the oil phase, further improving the resource utilization rate, and at the same time ensuring the efficient operation and environmental protection performance of the entire oil-based drilling fluid treatment device.

[0016] Preferably, the drainage mechanism includes a water pump. The water pump is connected to the bottom of the second sedimentation tank. The other end of the water pump is connected to the inside of the condensation tank through a cold water pipe. The other end inside the condensation tank is connected to the inside of the first preheating tank through a hot water pipe. The inside of the first preheating tank is connected to a water purification pipe. The water purification pipe is connected to the inside of the adsorption tank. The inside of the adsorption tank is connected to the cavity between the distillation tank and the second preheating tank through an exhaust pipe. A blower is installed on the top of the adsorption tank. The blower is connected to the inside of the adsorption tank. A sewage discharge pipe is provided on one side of the adsorption tank. The water pump is connected to the bottom of the second sedimentation tank and is responsible for pumping out the sedimented water and transporting it to the condensation tank. The cold water pipe cools the condenser, enabling the steam inside the condensation tank to be efficiently condensed into a liquid. The condensed hot water flows into the first preheating tank through the hot water pipe and exchanges heat with the oil-water mixture to be treated, using the waste heat of the hot water to preheat the mixture, thereby improving the energy utilization efficiency and reducing energy consumption. The preheated water flows into the adsorption tank through the water purification pipe. The inside of the adsorption tank is connected to the cavity between the distillation tank and the second preheating tank through an exhaust pipe. The blower is installed on the top of the adsorption tank. Through the action of the blower, the flue gas generated during the distillation process is sucked into the adsorption tank, and the harmful substances in the flue gas are adsorbed by water, realizing the purification treatment of the flue gas. The purified water is discharged through the sewage discharge pipe. The entire drainage mechanism not only realizes the recycling of water resources, but also effectively reduces wastewater discharge, reduces environmental pollution, and improves the environmental protection performance and economic efficiency of the entire oil-based drilling fluid environmental protection recovery treatment device.

[0017] The present invention provides an oil-based drilling fluid environmental protection recovery treatment device, which has the following beneficial effects: This oil-based drilling fluid environmental protection recovery and treatment device not only effectively removes solid impurities in the drilling fluid by cleverly using solid waste as a filtering medium, but also further improves the separation effect through the accumulation and filtering action of the solid waste. The solid waste gradually accumulates during the filtering process, forming multiple layers of filtering barriers, enabling more thorough interception of particulate impurities in the drilling fluid, thereby achieving more efficient solid-liquid separation. This design avoids the limitations of a single filtering medium in traditional filtering methods, reduces the replacement frequency and maintenance cost of the filtering medium, and at the same time realizes the automatic discharging function. As the solid waste continuously accumulates, the mechanical structure inside the device can automatically push the waste out without manual intervention, greatly reducing the workload and labor intensity of manual cleaning, improving the operating efficiency of the equipment, reducing the equipment downtime, and further enhancing the economy and environmental protection of the entire treatment process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the internal structure of the present invention; Figure 3 is a schematic diagram of the internal structure inside the housing of the present invention; Figure 4 is a schematic diagram of the internal front view structure of the present invention; Figure 5 is of the present invention Figure 4 the enlarged structure schematic diagram at A in; Figure 6 is a schematic diagram of the rear view structure of the present invention; Figure 7 is a schematic diagram of the internal structure of the adsorption chamber of the present invention; Figure 8 is a schematic diagram of the filter plate structure of the present invention; Figure 9 is a schematic diagram of the pressure plate structure of the present invention; Figure 10 is a schematic diagram of the thimble structure of the present invention.

[0019] In the figure, 1 is a solid-liquid separation mechanism; 101 is a water inlet; 102 is a cylinder; 103 is a lifting plate; 104 is a connecting rod; 105 is a lifting block; 106 is a moving block; 107 is a first spring; 108 is a first connecting pipe; 109 is a filter plate; 110 is a diversion chamber; 111 is a discharge plate; 112 is a discharge port; 113 is a piston plate; 114 is a pressure chamber; 115 is a first fixing block; 116 is a second spring; 117 is a first sealing block; 118 is a connecting chamber; 119 is a second sealing block; 120 is a third spring; 121 is a pressure plate; 122 is a water outlet chamber; 123 is a fourth spring; 124 is a pressure sensor; 125 is a thimble; 126 is a top plate; 127 is a micro cylinder; 2 is a control panel; 3 is a distillation mechanism; 301 is a shunt chamber; 302 is a first preheating chamber; 303 is a preheating pipe; 304 is a second preheating chamber; 305 is a heat exchange pipe; 306 is a distillation chamber; 307 is a burner; 308 is a heat exchange plate; 4 is a precipitation mechanism; 401 is a condenser pipe; 402 is a condensation chamber; 403 is a condensate water chamber; 404 is a connecting valve; 405 is a first precipitation chamber; 406 is a connecting pipe; 407 is a second precipitation chamber; 408 is an oil outlet chamber; 409 is an oil outlet valve; 5 is a drainage mechanism; 501 is a water pump; 502 is a cold water pipe; 503 is a hot water pipe; 504 is a water purification pipe; 505 is an adsorption chamber; 506 is a smoke exhaust pipe; 507 is a fan; 508 is a sewage discharge pipe; 6 is a housing. Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Embodiment

[0021] Please refer to Figures 1-10 , the embodiments of the present invention provide a technical solution: an environmental protection recovery and treatment device for oil-based drilling fluids, including: A housing 6; A solid-liquid separation mechanism 1, which is located inside one end of the housing 6 and is used to filter solid impurities in the drilling fluid; A control panel 2, connected to the housing 6 and used to control the overall operation of the device; A distillation mechanism 3, internally connected to the solid-liquid separation mechanism 1 and used to distill the drilling fluid to further separate the solid and liquid in the drilling fluid; A precipitation mechanism 4, internally connected to the distillation mechanism 3 and used to condense and precipitate the oil-water mixed steam discharged from the distillation mechanism 3; A drainage mechanism 5, which is located on the back of the housing 6 and is used to discharge the water inside the precipitation mechanism 4; The environmental protection recovery and treatment device for oil-based drilling fluid realizes efficient drilling fluid treatment through the coordinated cooperation of the solid-liquid separation mechanism 1, the distillation mechanism 3, the precipitation mechanism 4, and the drainage mechanism 5. Especially in the solid-liquid separation link, using solid waste as the filtering medium not only effectively removes solid impurities in the drilling fluid, but also further improves the separation effect through the accumulation and filtering of solid waste. During the filtering process, solid waste gradually accumulates to form multiple layers of filtering barriers, enabling more thorough interception of particulate impurities in the drilling fluid, thus achieving more efficient solid-liquid separation. At the same time, this method of using solid waste as the filtering medium avoids the limitations of a single filtering medium in traditional filtering methods, reducing the replacement frequency and maintenance cost of the filtering medium. In addition, the design of the solid-liquid separation mechanism 1 also realizes the automatic discharging function. As the solid waste continuously accumulates, it is automatically pushed out of the device through the internal mechanical structure without manual intervention, greatly reducing the workload and labor intensity of manual cleaning. This automatic discharging function not only improves the operating efficiency of the equipment but also reduces the equipment downtime, further enhancing the economy of the entire treatment process.

[0022] Through the efficient separation of the solid-liquid separation mechanism 1, solid impurities in the drilling fluid are effectively removed, providing a purer liquid medium for subsequent treatment links such as distillation, condensation, and precipitation. This coordinated cooperation not only improves the efficiency of the entire treatment device but also ensures the quality of the treated drilling fluid, achieving the recycling of resources and the environmental protection goal. Embodiment

[0023] Please refer to Figures 1-10, an embodiment of the present invention provides a technical solution: an environmentally friendly recovery and treatment device for oil-based drilling fluids. The solid-liquid separation mechanism 1 includes a filtration component and a fine filtration component. The filtration component is used for the preliminary solid-liquid separation of the drilling fluid, and the fine filtration component is used for further solid-liquid separation of the drilling fluid processed by the filtration component; the filtration component includes a cylinder 102 installed on the surface of the housing 6. The outer connection of the bottom output end of the cylinder 102 is connected to a lifting plate 103. Both ends of the lifting plate 103 are connected to one end of the top of the connecting rod 104. The outer wall of the connecting rod 104 is sleeved with a lifting block 105. One side of the lifting block 105 is provided with a moving block 106. The moving block 106 is slidably matched with the surface of the housing 6. The contact surface between the moving block 106 and the lifting block 105 is in a slope shape, and one side of the moving block 106 is connected to the outer wall of the housing 6 through a first spring 107. One side of the moving block 106 is provided with a filter plate 109. One side of the filter plate 109 is provided with a water inlet 101; the filter plates 109 are distributed in a staggered manner from top to bottom. The surface of the filter plate 109 is provided with hole grooves, and the inside of the filter plate 109 is communicated with the inside of the diversion chamber 110. One side of the filter plate 109 is provided with a discharge plate 111. Below the discharge plate 111 is provided with a discharge port 112; inside the filter plate 109 is provided with a top plate 126. The surface of the top plate 126 is provided with a plurality of ejector pins 125. Each ejector pin 125 corresponds to a filter hole on the surface of a filter plate 109. Four ends of the bottom of the top plate 126 are connected to a micro-cylinder 127. The micro-cylinder 127 is embedded at the bottom of the filter plate 109 and is communicated with an external air source; when the filter holes on the surface of the filter plate 109 are blocked by larger impurity particles, the micro-cylinder 127 inside the filter plate 109 is controlled by an external device to expand and contract regularly. When the micro-cylinder 127 extends, the air cylinder can push the top plate 126 upward, so that the top plate 126 can drive the ejector pins 125 to move upward, so that the ejector pins 125 can eject the larger impurity particles inside the filter holes on the surface of the filter plate 109, thereby preventing the filter holes on the surface of the filter plate 109 from being blocked; the fine filtration component includes a piston plate 113 connected to one end of the bottom of the connecting rod 104. The piston plate 113 is in sliding contact with the inner wall of the pressure chamber 114. One side of the pressure chamber 114 is communicated with the connecting chamber 118 through a hole groove. The inside of the connecting chamber 118 is communicated with the diversion chamber 110; on the inner side of the hole groove on one side of the pressure chamber 114 is provided with a first seal block 117. One side of the first seal block 117 is provided with a second spring 116. One side of the second spring 116 is connected to a first fixing block 115. The first fixing block 115 is installed inside the pressure chamber 114. The bottom of the pressure chamber 114 is provided with a hole groove, and at the bottom of the hole groove is provided with a second seal block 119. The bottom of the second seal block 119 is provided with a third spring 120. The bottom of the third spring 120 is connected to the top of the water outlet chamber 122. The top of the water outlet chamber 122 is provided with a pressure plate 121;The middle and both ends of the pressure plate 121 are provided with filter holes. The surfaces of both ends of the pressure plate 121 are attached to the top surface of the water outlet chamber 122. A fourth spring 123 is arranged at the bottom of the pressure plate 121. Pressure sensors 124 are arranged below both ends of the pressure plate 121. The pressure sensors 124 are signal-connected to the remote control terminal. The bottom of the pressure chamber 114 is communicated with one end of the first connecting pipe 108. The material drilling fluid enters the equipment through the water inlet 101. The filter plate 109 can make the particulate impurities in the drilling fluid stay on the surface of the filter plate 109. As the impurities accumulate on the surface of the filter plate 109, the cylinder 102 drives the lifting plate 103 to move downward, so that the lifting plate 103 can drive the lifting block 105 to move up and down through the connecting rod 104. While the lifting block 105 moves up and down, it can contact the moving block 106, so that the moving block 106 can move reciprocally in the horizontal direction. Thus, the particulate impurities accumulated on the surface of the topmost filter plate 109 can be pushed to the other end of the filter plate 109, and the excess particulate impurities on the surface of the upper filter plate 109 can fall onto the surface of the lower filter plate 109, and then are discharged from the bottom discharge port 112. By using the particulate impurities in the drilling fluid as the filter medium, while removing the impurities in the drilling fluid, the waste impurities can be used as the filter medium, which greatly improves the utilization rate of solid waste. At the same time, automatic discharging can be realized. At the same time, by using the accumulated impurity waste as the filter medium, the drilling fluid can penetrate downward inside the impurities and finally be collected inside the filter plate 109. Compared with the single filter plate 109 for solid-liquid separation of drilling fluid, this solution uses waste as the filter medium and greatly improves the filtering effect; The liquid filtered by the solid impurity waste can flow into the diversion chamber 110 through the inside of the filter plate 109, and then enter the connection chamber 118. Thus, in the process of the connecting rod 104 moving up and down, one end at the bottom of the connecting plate can synchronously drive the piston plate 113 to move up and down. When the piston plate 113 moves upward inside the pressure chamber 114, a suction force will be generated in the hole groove on one side of the pressure chamber 114, so that the oil-water mixed liquid inside the connection chamber 118 can be sucked into the pressure chamber 114. When the piston plate 113 moves downward, under the action of the second spring 116, it can push the first sealing block 117 to block the hole groove connecting the pressure chamber 114 and the connection chamber 118. Then, under the push of the piston plate 113, the oil-water mixed liquid inside the pressure chamber 114 can be pushed downward to open the second sealing block 119, and then further filtered through the hole groove in the middle of the pressure plate 121. The pressure forced by the push of the piston plate 113 makes the oil-water mixed liquid inside the pressure chamber 114 quickly discharge and filter through the hole groove in the middle of the pressure plate 121, thereby improving the filtering effect and avoiding the slow filtering through the hole groove in the middle of the pressure plate 121 due to the high viscosity of the oil-water mixed liquid inside the pressure chamber 114, which affects the filtering efficiency; In addition, when the hole groove in the middle of the pressure plate 121 is blocked, the whole pressure plate 121 will be pushed downward under pressure, so that the oil-water mixture liquid inside the pressure chamber 114 can flow into the first connecting pipe 108 through the hole grooves at both ends of the pressure plate 121, and then the oil-water mixture liquid inside the connection chamber 118 can be discharged, avoiding excessive pressure inside the pressure chamber 114. At the same time, when the pressure plate 121 moves downward, it can trigger the pressure sensor 124, and the pressure sensor 124 can transmit the signal to the remote terminal, thus reminding the operator to open the outer maintenance plate in time to dredge the hole grooves on the surface of the pressure plate 121. Embodiment

[0024] Please refer to Figures 1-4 , an embodiment of the present invention provides a technical solution: an oil-based drilling fluid environmental protection recovery and treatment device, the distillation mechanism 3 includes a shunt bin 301, the shunt bin 301 is internally communicated with the second preheating bin 304 through a preheating pipe 303, the preheating pipe 303 is arranged inside the first preheating bin 302, the first preheating bin 302 is located between the second preheating bin 304 and the shunt bin 301, the inside of the second preheating bin 304 is internally communicated with the inside of the distillation bin 306 through a heat exchange pipe 305, the heat exchange pipe 305 is located inside the cavity between the distillation bin 306 and the second preheating bin 304, and a burner 307 is installed on one side of the heat exchange pipe 305. A heat exchange plate 308 is arranged at the bottom of the distillation bin 306, and the heat exchange plate 308 has a multi-folded structure; The oil-water mixture after being treated by the solid-liquid separation mechanism 1 can be discharged into the shunt bin 301 through the first connecting pipe 108. Then, the oil-water mixture can enter the second preheating bin 304 through the first preheating bin 302. The second preheating bin 304 preheats the cavity by heating with the burner 307 above. The preheated oil-water mixture can enter the inside of the heat exchange pipe 305, and then enter the inside of the distillation bin 306 through the heat exchange pipe 305. The burner 307 can heat and distill the oil-water mixture inside the heat exchange pipe 305 and the distillation bin 306 to make it into oil-water mixed steam, which is beneficial to thoroughly remove the internal solid particles, improve the purity of the oil-water mixture treatment, and is beneficial to the subsequent process treatment. Embodiment

[0025] Please refer to Figures 1-4, an embodiment of the present invention provides a technical solution: an environmentally friendly recycling and treatment device for oil-based drilling fluids. The precipitation mechanism 4 includes a condensing pipe 401. One end of the condensing pipe 401 is internally communicated with the distillation chamber 306. A semi-circular baffle is provided at one end of the condensing pipe 401. The condensing pipe 401 is located inside the condensation chamber 402. The other end of the condensing pipe 401 is internally communicated with the condensed water chamber 403. The inside of the condensed water chamber 403 is internally communicated with the inside of the first sedimentation chamber 405 through a communication valve 404. The inside of the first sedimentation chamber 405 is internally communicated with the inside of the second sedimentation chamber 407 through a communication pipe 406. An oil outlet chamber 408 is provided at the top of the second sedimentation chamber 407. Both sides of the top of the oil outlet chamber 408 are internally communicated with the inside of the first sedimentation chamber 405 and the second sedimentation chamber 407 respectively, and the inside of the oil outlet chamber 408 is communicated with an oil outlet valve 409. After the oil-water mixed steam enters the condensing pipe 401, it is condensed and reduced to a liquid, and then discharged into the condensation chamber 402. The oil-water mixture inside the condensation chamber 402 will enter the first sedimentation chamber 405 through the communication valve 404. Then, the oil-water mixture will be sedimented and separated inside the first sedimentation chamber 405. The water at the bottom layer will enter the inside of the second sedimentation chamber 407 through the communication pipe 406 for secondary sedimentation. The oil on the upper layer of the second sedimentation chamber 407 and the first sedimentation chamber 405 will overflow into the oil outlet chamber 408. Then, the oil inside the oil outlet chamber 408 can be discharged through the oil outlet valve 409. By separating oil and water, valuable oil-based components and additives can be recycled, resource waste can be reduced, and at the same time, the performance of the drilling fluid can be optimized to meet the requirements of different drilling conditions. Embodiment

[0026] Please refer to Figures 1-6, an embodiment of the present invention provides a technical solution: an environmentally friendly recovery and treatment device for oil-based drilling fluids. The drainage mechanism 5 includes a water pump 501. The water pump 501 is connected to the bottom of the second sedimentation chamber 407. The other end of the water pump 501 is internally connected to the condensation chamber 402 through a cold water pipe 502. The other end inside the condensation chamber 402 is internally connected to the first preheating chamber 302 through a hot water pipe 503. The inside of the first preheating chamber 302 is connected to a water purification pipe 504. The water purification pipe 504 is internally connected to the adsorption chamber 505. The inside of the adsorption chamber 505 is internally connected to the cavity between the distillation chamber 306 and the second preheating chamber 304 through an exhaust pipe 506. A blower 507 is installed on the top of the adsorption chamber 505. The blower 507 is connected to the inside of the adsorption chamber 505. A sewage discharge pipe 508 is provided on one side of the adsorption chamber 505. The water at the bottom of the second sedimentation chamber 407 can enter the inside of the condensation chamber 402 through the cold water pipe 502 under the action of the water pump 501, so that the water after drilling fluid treatment can cool the condenser tube 401. Furthermore, no external cooling medium is required inside the condensation chamber 402. Then, the heat-absorbed and heated water can enter the first preheating chamber 302 through the hot water pipe 503. The waste heat in the water can be used to provide heat inside the first preheating chamber 302, which is beneficial to reducing energy consumption. Then, the water is discharged into the adsorption chamber 505 after passing through the inside of the first preheating chamber 302. Under the action of the blower 507, a negative pressure can be generated inside the adsorption chamber 505, so that the flue gas generated by the burner 307 can enter the inside of the adsorption chamber 505 through the exhaust pipe 506. Thus, the water-soluble harmful substances in the flue gas can be filtered in the water, and the water separated from the inside of the drilling fluid can be fully utilized.

[0027] During use, the drilling fluid enters the device through the water inlet 101. First, it undergoes preliminary solid-liquid separation through the filter plate 109 of the solid-liquid separation mechanism 1. The solid impurities are intercepted on the surface of the filter plate and gradually accumulate. The liquid flows into the diversion chamber 110 through the pores of the filter plate. As the impurities accumulate, the cylinder 102 drives the lifting plate 103 and the connecting rod 104 to move, driving the lifting block 105 to push the moving block 106 to move horizontally, and pushing the impurities to the discharge port 112 for discharge. The liquid after preliminary separation enters the fine filtration assembly. Through the reciprocating movement of the piston plate 113 in the pressure chamber 114, it is further filtered and discharged to the water outlet chamber 122.

[0028] The liquid after fine filtration flows into the diversion chamber 301 of the distillation mechanism 3, is preheated successively through the first preheating chamber 302 and the second preheating chamber 304, and then enters the distillation chamber 306 through the heat exchange tube 305, and is heated and distilled under the action of the burner 307 and the heat exchange plate 308 to be converted into an oil-water mixed steam.

[0029] The oil-water mixed steam enters the condenser tube 401 of the precipitation mechanism 4, condenses into a liquid in the condensation chamber 402, flows into the condensate sump 403, and then enters the first precipitation chamber 405 through the connecting valve 404 for preliminary precipitation separation. The separated oil overflows into the oil outlet chamber 408 and is discharged for recovery through the oil outlet valve 409, while the water enters the second precipitation chamber 407 through the connecting pipe 406 for secondary precipitation.

[0030] The precipitated water is pumped out by the water pump 501, enters the condensation chamber 402 through the cold water pipe 502 to cool the condenser tube 401, and the heated water flows into the first preheating chamber 302 through the hot water pipe 503 to preheat the liquid to be treated. The preheated water enters the adsorption chamber 505, adsorbs the flue gas generated during the distillation process through the negative pressure generated by the fan 507, and the purified water is discharged through the sewage pipe 508 to achieve the recycling of water resources and environmental protection emissions.

[0031] The above shows and describes the basic principles, main features and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be construed as limiting the claimed rights.

[0032] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An environmentally friendly recovery and treatment device for oil-based drilling fluids, characterized in that, Comprising: A housing (6); A solid-liquid separation mechanism (1), which is located inside one end of the housing (6) and is used to filter solid impurities in the drilling fluid; A control panel (2), which is connected to the housing (6) and is used for the overall control work of the equipment; A distillation mechanism (3), which is internally connected to the solid-liquid separation mechanism (1) and is used to distill the drilling fluid to further separate the solid and liquid in the drilling fluid; A precipitation mechanism (4), which is internally connected to the distillation mechanism (3) and is used to condense and precipitate the oil-water mixed steam discharged from the distillation mechanism (3); A drainage mechanism (5), which is located on the back of the housing (6) and is used to discharge the water inside the precipitation mechanism (4).

2. The environmentally friendly recycling and treatment device for oil-based drilling fluid according to claim 1, wherein: The solid-liquid separation mechanism (1) includes a filtration component and a fine filtration component. The filtration component is used for the preliminary solid-liquid separation of the drilling fluid, and the fine filtration component is used for further solid-liquid separation of the drilling fluid processed by the filtration component; The filtration component includes a cylinder (102) installed on the surface of the housing (6). The bottom output end of the cylinder (102) is externally connected with a lifting plate (103). Both ends of the lifting plate (103) are connected to one end of the top of a connecting rod (104). A lifting block (105) is sleeved on the outer wall of the connecting rod (104). A moving block (106) is arranged on one side of the lifting block (105), and the moving block (106) is slidably matched with the surface of the housing (6); The contact surface between the moving block (106) and the lifting block (105) is in a slope shape, and one side of the moving block (106) is connected to the housing (6) through a first spring (107). A filter plate (109) is arranged on one side of the moving block (106), and a water inlet (101) is arranged on one side of the filter plate (109).

3. The environmentally friendly recovery and treatment device for oil-based drilling fluid according to claim 2, characterized in that: The filter plates (109) are distributed in a staggered manner from top to bottom and there are multiple filter plates (109). Hole grooves are formed on the surface of the filter plates (109), and the inside of the filter plates (109) is internally connected to the inside of a diversion chamber (110). A discharge plate (111) is arranged on one side of the filter plates (109). A discharge port (112) is arranged below the discharge plate (111). A top plate (126) is arranged inside the filter plates (109). Multiple ejector pins (125) are arranged on the surface of the top plate (126). Each ejector pin (125) corresponds to a filter hole on the surface of a filter plate (109). Four ends of the bottom of the top plate (126) are connected with micro air cylinders (127). The micro air cylinders (127) are embedded at the bottom of the filter plates (109), and the micro air cylinders (127) are communicated with an external air source.

4. The environmentally friendly recycling and treatment device for oil-based drilling fluid according to claim 3, wherein: The fine filtration assembly includes a piston plate (113) connected to one end of the bottom of the connecting rod (104). The piston plate (113) is in sliding contact with the inner wall of the pressure chamber (114). One side of the pressure chamber (114) is communicated with the connecting chamber (118) through a hole groove, and the inside of the connecting chamber (118) is communicated with the diversion chamber (110). A first sealing block (117) is arranged inside the hole groove on one side of the pressure chamber (114). A second spring (116) is arranged on one side of the first sealing block (117). One side of the second spring (116) is connected with a first fixing block (115), and the first fixing block (115) is installed inside the pressure chamber (114). A hole groove is arranged at the bottom of the pressure chamber (114), and a second sealing block (119) is arranged at the bottom of the hole groove. A third spring (120) is arranged at the bottom of the second sealing block (119), and the bottom of the third spring (120) is connected with the top of the water outlet chamber (122). A pressure plate (121) is arranged at the top of the water outlet chamber (122).

5. The environmentally friendly recovery and treatment device for oil-based drilling fluid according to claim 4, characterized in that: Filter holes are arranged in the middle and at both ends of the pressure plate (121), and the surfaces at both ends of the pressure plate (121) are attached to the top surface of the water outlet chamber (122). A fourth spring (123) is arranged at the bottom of the pressure plate (121), and pressure sensors (124) are arranged below both ends of the pressure plate (121). The pressure sensors (124) are in signal connection with the remote control terminal. The bottom of the pressure chamber (114) is communicated with one end of the first connecting pipe (108).

6. The environmentally friendly recycling and treatment device for oil-based drilling fluid according to claim 5, wherein: The distillation mechanism (3) includes a diversion chamber (301). The diversion chamber (301) is internally communicated with the second preheating chamber (304) through a preheating pipe (303). The preheating pipe (303) is arranged inside the first preheating chamber (302). The first preheating chamber (302) is located between the second preheating chamber (304) and the diversion chamber (301). The inside of the second preheating chamber (304) is communicated with the inside of the distillation chamber (306) through a heat exchange pipe (305). The heat exchange pipe (305) is located inside the cavity between the distillation chamber (306) and the second preheating chamber (304), and a burner (307) is installed on one side of the heat exchange pipe (305). A heat exchange plate (308) is arranged at the bottom of the distillation chamber (306), and the heat exchange plate (308) has a multi-bent structure.

7. The environmentally friendly recovery and treatment device for oil-based drilling fluid according to claim 6, characterized in that: The precipitation mechanism (4) includes a condensing pipe (401). One end of the condensing pipe (401) is communicated with the inside of the distillation chamber (306). A semi-circular baffle is arranged at one end of the condensing pipe (401). The condensing pipe (401) is located inside the condensing chamber (402). The other end of the condensing pipe (401) is communicated with the inside of the condensed water chamber (403). The inside of the condensed water chamber (403) is communicated with the inside of the first precipitation chamber (405) through a connection valve (404).

8. The environmentally friendly recovery and treatment device for oil-based drilling fluid according to claim 7, wherein: The interior of the first sedimentation tank (405) is connected to the interior of the second sedimentation tank (407) through a connecting pipe (406). An oil outlet tank (408) is provided at the top of the second sedimentation tank (407). Both sides of the top of the oil outlet tank (408) are respectively connected to the interiors of the first sedimentation tank (405) and the second sedimentation tank (407), and the interior of the oil outlet tank (408) is connected to an oil outlet valve (409).

9. The environmentally friendly recycling and treatment device for oil-based drilling fluid according to claim 8, characterized in that: The drainage mechanism (5) includes a water pump (501). The water pump (501) is connected to the bottom of the second sedimentation tank (407). The other end of the water pump (501) is connected to the interior of the condensation tank (402) through a cold water pipe (502). The other end inside the condensation tank (402) is connected to the interior of the first preheating tank (302) through a hot water pipe (503). The interior of the first preheating tank (302) is connected to a water purification pipe (504). The water purification pipe (504) is connected to the interior of the adsorption tank (505). The interior of the adsorption tank (505) is connected to the cavity interior between the distillation tank (306) and the second preheating tank (304) through a smoke exhaust pipe (506). A blower (507) is installed at the top of the adsorption tank (505). The blower (507) is connected to the interior of the adsorption tank (505). A sewage discharge pipe (508) is provided on one side of the adsorption tank (505).

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