An oil-water mixed vapor cleaning device

Abstract

The present application discloses an oil-water mixed vapor cleaning device, belonging to the technical field of dust removal treatment equipment, including: a main body and a dust collection component. The dust collection component includes a air distribution plate with a ventilation opening, a plurality of first elastic members, a plurality of hanging plates, a plurality of collection brushes and a connecting rod; the air distribution plate is connected to the main body and is located in the cleaning cavity. The two ends of the plurality of first elastic members are respectively connected to the air distribution plate and the hanging plates. The plurality of hanging plates are arranged at intervals in the cleaning cavity. The collection brushes are provided with a plurality of fiber bristles for attaching particulate matters. The plurality of collection brushes are respectively connected to the two sides of the hanging plates. The intervals between adjacent hanging plates are covered with collection brushes, so that the ventilation opening corresponds to the collection brushes. The connecting rod is connected to the plurality of hanging plates, and one end of the connecting rod is connected to the main body. The present application combines two processes of sedimentation separation and filtration separation. When the oil-water mixed vapor above 350 °C passes through, the dust is separated from the vapor, and the high-concentration dust in the mixed vapor can be effectively removed, improving the treatment efficiency of the oil-water mixed vapor.

Description

Technical Field

[0001] This application belongs to the technical field of dust removal treatment equipment, and particularly relates to an oil-water mixed vapor cleaning device. Background Art

[0002] As a special waste generated in oil and gas drilling operations, the treatment and disposal of oil-based cuttings have become a key link restricting the green development of the industry. This substance is mainly formed by the mixture of drilling fluid and formation cuttings, and generally contains mineral oils, organic additives, and pore water, with the rest being solid particles with a complex particle size distribution. When treating oil-based cuttings, it is necessary to separate oil and water. During the separation process, the process is to first turn the oil, organic matter, and water in the cuttings into high-temperature steam, and then re-condense the high-temperature oil steam into an oil-water mixture. In the actual production process, there will be a large amount of dust in the oil-water mixed vapor, resulting in the dust affecting the condensation separation in the subsequent process and unable to effectively remove the high-concentration dust.

[0003] After the mixed vapor with a high concentration of dust enters the condensation system, it will cause great difficulty in the condensation separation of the mixed vapor, and the effect of ordinary separation equipment is not good. This is because the temperature of the mixed oil vapor is relatively high, generally exceeding 350°C, flammable and explosive, and the dust has a relatively high viscosity during separation. Therefore, there are certain difficulties in separation. Currently, there is no good equipment to remove and separate the high-concentration dust in the high-temperature (350°C) oil-water mixed vapor, and the existing equipment cannot effectively remove the high-concentration dust in the oil-water mixed vapor. Summary of the Invention

[0004] This application aims to at least solve the technical problem of difficult separation of high-concentration dust in oil-water mixed vapor to a certain extent. For this purpose, this application provides an oil-water mixed vapor cleaning device, which can separate a large amount of dust from the vapor when the oil steam passes through, effectively remove the high-concentration dust in the oil-water mixed vapor, and improve the treatment efficiency of the oil-water mixed vapor.

[0005] An embodiment of this application provides an oil-water mixed vapor cleaning device, which includes:

[0006] A main body, which is internally provided with a cleaning cavity, an intake passage, and an exhaust passage that are independently communicated with the cleaning cavity;

[0007] The dust collection assembly is disposed in the cleaning cavity and occupies the flow cross-section of the air flow in the cleaning cavity; the dust collection assembly includes a air distribution plate with a ventilation opening, a plurality of first elastic members, a plurality of hanging plates, a plurality of collection brushes and a connecting rod; the air distribution plate is connected to the main body and is located in the cleaning cavity, both ends of the plurality of first elastic members are respectively connected to the air distribution plate and the hanging plates, the plurality of hanging plates are arranged at intervals in the cleaning cavity, the collection brushes are provided with a plurality of fiber bristles for attaching particulate matters, the plurality of collection brushes are respectively connected to both sides of the hanging plates, the intervals between adjacent hanging plates are all covered with collection brushes, so that the ventilation opening is positioned corresponding to the collection brushes, the connecting rod is connected to the plurality of hanging plates, and one end of the connecting rod is connected to the main body;

[0008] The intervals between the plurality of collection brushes gradually increase along the direction of the air flow entering the ventilation opening;

[0009] The air distribution plate includes an air distribution frame and folding strip plates. The air distribution frame is connected between the inner wall of the main body and the partition plate. The air distribution frame has a through ventilation opening. The plurality of folding strip plates are arranged at intervals and connected to the air distribution frame. The folding strip plates are provided with inclined surfaces for guiding the air flow on the air inlet side.

[0010] In some embodiments, a partition plate connected to the main body is provided in the main body. The partition plate is disposed between the air inlet passage and the air outlet passage. The partition plate extends into the cleaning cavity and coincides with the corresponding position of the hanging plate. The partition plate is spaced from the hanging plate, so that the air flow forms opposite flow directions in the cleaning cavity.

[0011] In some embodiments, the collection brush includes a brush rod and fiber bristles resistant to temperatures above 1000 °C. A plurality of fiber bristles are arranged in multiple rows and columns along the axial direction of the brush rod and are recorded as a group. A plurality of groups of fiber bristles are provided along the circumferential direction of the brush rod. The end of the brush rod is connected to the hanging plate.

[0012] In some embodiments, a vibration device is further included. The vibration device is disposed outside the main body. The output end of the vibration device is connected to the connecting rod and can drive the connecting rod to move axially. The connecting rod is hinged to all the hanging plates. A second elastic member is provided between the end of the connecting rod and the partition plate.

[0013] In some embodiments, a fixed perforated plate, a plurality of steam filtration assemblies and a blowing assembly located in the cleaning cavity are further included. The fixed perforated plate is connected between the partition plate and the inner wall of the main body, so that the air flow passes through the collection brushes and then passes through the steam filtration assemblies in the opposite flow direction. The fixed perforated plate is provided with a plurality of mounting openings. The plurality of steam filtration assemblies are fixed to the mounting openings. The air outlet of the blowing assembly extends to the mounting openings. The steam filtration assembly is a filter cartridge. The filter cartridge includes an inner layer and an outer layer, and a filter media substrate provided in the gap between the inner layer and the outer layer.

[0014] In some embodiments, it further includes a linear driving device, a connecting rod, and a scraping frame. The linear driving device is installed outside the main body. The output end of the linear driving device is connected to the connecting rod, the connecting rod is connected to the scraping frame, the scraping frame is located in the cleaning cavity, the scraping frame is provided with a plurality of scraping blades, each scraping blade corresponds to a filter cartridge, and the scraping blade is sleeved on the outer periphery of the filter cartridge.

[0015] In some embodiments, the blowing assembly includes a gas supply device, a ventilation valve, and a blowing conduit. The gas supply device is located outside the main body. One end of the blowing conduit communicates with the gas supply device, and the other end extends to the installation opening. The ventilation valve is installed on the blowing conduit.

[0016] In some embodiments, it further includes a discharger, which is arranged on the main body. The inlet of the discharger communicates with the cleaning cavity, and the inner wall of the main body adjacent to the discharger is set as an inclined surface.

[0017] In some embodiments, the main body includes a housing and a heat insulation layer. The two ends inside the housing are respectively an air inlet passage and an exhaust passage. There is a cleaning cavity inside the housing. Reinforcing ribs are also provided on the outer wall or the inner wall of the housing. The heat insulation layer is wrapped on the outside of the housing.

[0018] As can be seen from the above technical solutions, the beneficial effects of this application are:

[0019] In this application, a dust collection assembly is arranged in the cleaning cavity between the air inlet passage and the exhaust passage to collect dust. By occupying the flow cross-section of the air flow in the cleaning cavity, after the air flow enters from the air inlet passage, in the area of the dust collection assembly in the cleaning cavity, it can only pass through the dust collection assembly, ensuring that the dust collection assembly can fully collect the vapor. Specifically, first, the oil-water mixed vapor is smoothly introduced into the collection brush between the hanging plates through the air distribution plate. The high-concentration dust in the vapor is blocked by the fiber bristles on the collection brush, producing a collection effect. And the collection brush is distributed between adjacent hanging plates, so that the working area of the collection brush can fill the entire space occupied by the dust collection assembly, effectively collecting the high-concentration dust. When the vapor carrying dust passes through the fiber bristles, it can effectively stay on the fiber bristles. And because the space of the cleaning cavity is large, the flow rate of the vapor drops significantly. In the case of a significant decrease in the flow rate, a large amount of dust is more easily blocked by the fiber bristles. On the other hand, under the action of the vapor, the hanging plate and the first elastic member vibrate to a certain extent. When the dust blocked by the fiber bristles accumulates to a certain amount, it helps the dust to fall off. Therefore, when the oil-water vapor passes through, this application separates a large amount of dust from the vapor, can effectively remove the high-concentration dust in the oil-water mixed vapor, and improves the treatment efficiency of the oil-water mixed vapor. Description of the Drawings

[0020] To more clearly illustrate the technical solutions in the embodiments of the present application, the accompanying drawings required for the description of the embodiments will be briefly introduced one by one below. Obviously, the accompanying drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other embodiments and accompanying drawings can also be obtained based on these drawings. Various schematic diagrams according to the embodiments of the present application are shown in the drawings. These drawings are not necessarily drawn to scale. For the purpose of clear expression, some details are enlarged and some details may be omitted. The shapes of various regions and layers shown in the drawings, as well as their relative sizes and positional relationships, are only exemplary and may deviate in practice due to manufacturing tolerances or technical limitations; except for the special provisions or limitations in the present application, those skilled in the art can design embodiments with different shapes, sizes, and relative positions according to actual needs.

[0021] The flowcharts shown in the accompanying drawings are only exemplary illustrations and do not necessarily include all the content and operations / steps, nor do they necessarily need to be executed in the described order. For example, some operations / steps can be decomposed, while some operations / steps can be combined or partially combined. Therefore, the actual execution order may change according to the actual situation.

[0022] Figure 1 The schematic diagram of an embodiment of the oil-water mixed vapor cleaning device of the present invention is shown;

[0023] Figure 2 The schematic diagram of an embodiment of the dust-catching collecting brush of the present invention is shown;

[0024] Figure 3 The schematic diagram of an embodiment of the dust-catching collecting brush of the present invention is shown;

[0025] Figure 4 The schematic diagram of the bottom of an embodiment of the fixed perforated plate of the present invention is shown;

[0026] Figure 5 The schematic diagram of an embodiment of the filter cartridge of the present invention is shown;

[0027] Figure 6 The schematic diagram of an embodiment of each metal frame of the scraping rack of the present invention is shown;

[0028] Reference numerals: 100, main body; 101, cleaning cavity; 102, intake passage; 103, exhaust passage; 110, housing; 111, intake section; 112, treatment section; 113, exhaust section; 120, thermal insulation layer; 130, partition board; 200, dust collection assembly; 210, air distribution plate; 211, air distribution frame; 212, folding plate strip; 220, first elastic member; 230, hanging plate; 240, dust collection brush; 241, brush rod; 242, fiber bristles; 250, connecting rod; 251, hinge bolt; 260, second elastic member; 300, vibration device; 400, steam filtration assembly; 410, fixed perforated plate; 411, installation opening; 412, screw; 420, filter cartridge; 421, inner layer; 422, outer layer; 423, filter media; 500, injection assembly; 510, air supply device; 520, air vent valve; 530, injection conduit; 600, moving assembly; 610, linear drive device; 620, connecting rod; 630, scraping frame; 631, scraping blade; 700, discharger. Detailed implementation manners

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings corresponding to the specific implementation manners of the present application. The following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the present application to be protected. The described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, various different configurations can be arranged and designed. All other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0030] The present application will be described below with reference to the accompanying drawings and specific embodiments:

[0031] Please refer to Figure 1, in the embodiment of the first aspect of the present application, an oil-water mixed vapor cleaning device is provided. The device includes a main body 100 and a dust collection assembly 200. The main body 100 provides a container space for processing oil vapor. There is a cleaning cavity 101, an intake passage 102 and an exhaust passage 103 independently communicated with the cleaning cavity 101 in the main body 100. The intake passage 102 and the exhaust passage 103 are respectively responsible for the entry and exit of oil vapor. The cleaning cavity 101 is the main space for processing dust in the vapor. The vapor enters the cleaning cavity 101 from the intake passage 102 and then exits from the exhaust passage 103. The dust collection assembly 200 is arranged in the cleaning cavity 101 and occupies the flow cross-section of the air flow in the cleaning cavity 101 to ensure that the vapor only passes through the dust collection assembly 200, realizing the full capture of dust in the vapor. The dust collection assembly 200 includes a air distribution plate 210 with ventilation openings, a plurality of first elastic members 220, a plurality of hanging plates 230, a plurality of capture brushes and a connecting rod 250. The air distribution plate 210 is connected to the main body 100 and is located in the cleaning cavity 101. For example, the air distribution plate 210 is plate-shaped and provided with ventilation openings. The edge of the air distribution plate 210 is welded or screwed to the inner wall of the main body 100. The two ends of the plurality of first elastic members 220 are respectively connected to the air distribution plate 210 and the hanging plate 230. The first elastic members 220 are springs with high temperature resistance, such as stainless steel springs, which can withstand the action of vapor. The top end of the first elastic member 220 is connected to the bottom of the air distribution plate 210, and the bottom end of the first elastic member 220 is welded and fixed to the top side of the hanging plate 230. The plurality of hanging plates 230 are arranged at intervals in the cleaning cavity 101, and it is advisable to have an equal distance between the hanging plates 230, thus forming the approximate range of the dust collection assembly 200.

[0032] Please refer to Figure 2 , there are multiple capture brushes provided with fiber bristles 242 for attaching particulate matter. The fiber bristles 242 are closely arranged. The plurality of capture brushes are respectively fixed to both sides of the hanging plate 230 by welding, plugging or other connection methods. The space between adjacent hanging plates 230 is covered with capture brushes. In this way, the fiber bristles 242 can fill the space between the hanging plates 230, and the hanging plates 230 and the capture brushes occupy the flow cross-section of the air flow in the cleaning cavity 101. The fiber bristles 242 can fill the entire flow cross-section to ensure that the air flow passes through between the fiber bristles 242, making the ventilation openings correspond to the capture brushes, so that the air flow of the vapor can fully contact the fiber bristles 242. The connecting rod 250 is connected to the plurality of hanging plates 230. Connection points of different hanging plates 230 are respectively arranged at the spaced positions of the connecting rod 250. The plurality of hanging plates 230 are connected to the connecting rod 250 by hinge, plugging or other connection methods. The main body 100 is provided with a rod hole passing through the connecting rod 250, and one end of the connecting rod 250 is connected to the main body 100 through this rod hole.

[0033] During the heating process of oil-based cuttings in an anaerobic environment, to ensure uniform heating of the material, the distillation device continuously tumbles or rotates during heating to agitate the internal material for uniform heating. As a result, a large amount of fine rock debris dregs after heating and drying are suspended in the distillation furnace. The high-concentration high-temperature dust and the high-temperature oil-water mixed vapor already formed in the furnace form a gaseous mixture, which is continuously extracted with the oil-water mixed vapor to the condensation device for cooling. During the cooling process, this part of the dust is again wrapped by partially condensed oil as condensation nuclei, forming a viscous oily sludge liquid. After a long time of precipitation, the relatively clear mixed liquid at the top of the sedimentation tank is further distilled and refined in the distillation tower to further form an oil-water mixed vapor, separating part of the dust therein. The viscous oily sludge at the bottom of the sedimentation tank is returned to the raw material again for high-temperature distillation and separation. However, in the prior art, there will be a large amount of dust in the oil-water mixed vapor, resulting in the dust affecting the condensation separation in the subsequent process and unable to effectively remove the high-concentration dust. After the mixed vapor with a high-concentration dust content enters the condensation system, it will cause great difficulty in the condensation separation of the mixed vapor. This is due to the high temperature, flammability, and explosiveness characteristics of the mixed oil vapor. The mixed oil vapor generally has a temperature exceeding 350°C, is flammable and explosive, and is not easy to handle. Moreover, the dust has a relatively high viscosity during separation, so there are certain difficulties in separation. Ordinary separation equipment has poor effects, and there is currently no good equipment for removing and separating high-concentration dust.

[0034] In this application, a dust collection component 200 is provided in the cleaning cavity 101 between the intake passage 102 and the exhaust passage 103 to collect dust. By occupying the flow cross-section of the air flow in the cleaning cavity 101, when the air flow enters from the intake passage 102, it can only pass through the dust collection component 200 in the area of the dust collection component 200 in the cleaning cavity 101, ensuring that the dust collection component 200 can fully collect the vapor. Specifically, first, the oil-water mixed vapor is smoothly introduced into the collection brush between the hanging plates 230 through the air distribution plate 210. The high-concentration dust in the vapor is blocked by the fiber bristles 242 on the collection brush, resulting in a collection effect. Moreover, the collection brushes are distributed between adjacent hanging plates 230, so that the working area of the collection brushes can fill the entire space occupied by the dust collection component 200, effectively collecting the high-concentration dust. When the vapor carrying dust passes through the fiber bristles 242, it can effectively stay on the fiber bristles 242. And because the space of the cleaning cavity 101 is large, the flow rate of the vapor drops significantly. In the case of a significant decrease in the flow rate, a large amount of dust is more easily blocked by the fiber bristles 242. On the other hand, under the action of the vapor, the hanging plate 230 and the first elastic member 220 vibrate to a certain extent. When the dust blocked by the fiber bristles 242 accumulates to a certain amount, it helps the dust to fall off. Therefore, the dust with a large viscosity can be effectively cleaned and dropped after accumulation. Therefore, when the oil-water vapor passes through, a large amount of dust is separated from the vapor in this application, effectively removing the high-concentration dust in the oil-water mixed vapor and improving the treatment efficiency of the oil-water mixed vapor.

[0035] Please refer to Figure 1, in some embodiments, a partition 130 connected to the main body 100 is provided inside the main body 100. The partition 130 can be a metal plate welded and fixed inside the main body 100, or a detachable plate bolted to the inner wall of the main body 100. The top end of the partition 130 is connected to the top wall inside the main body 100. The partition 130 is arranged between the intake passage 102 and the exhaust passage 103, and blocks the direct connection position between the intake passage 102 and the exhaust passage 103. The partition 130 extends into the cleaning cavity 101 and coincides with the corresponding position of the suspension plate 230. The bottom end of the partition 130 extends all the way to the middle of the cleaning cavity 101. The partition 130 is spaced from the suspension plate 230, so that air flows form opposite flow directions in the cleaning cavity 101. The horizontal corresponding positions of the partition 130 and the suspension plate 230 coincide, and the partition 130 covers the vertical corresponding range of the suspension plate 230. The partition 130 divides the cleaning cavity 101 into two left and right parts, and the two parts communicate with each other at the lower part of the partition 130. As shown in the figure, the left chamber of the partition 130 is the coarse dust sedimentation area. With this design of the special flow path, after the high-concentration oil-water mixed vapor dusty gas enters the dust sedimentation area from the intake passage 102, the flow rate rapidly decreases to 1 / 20 - 1 / 10 of the pipeline speed in the intake passage 102. Some large-particle dust or fine dust with strong adhesiveness is separated from the gas for primary sedimentation separation under the action of the sharp drop in flow rate and the blocking of the fiber bristles 242 on the dust collector.

[0036] Please refer to Figure 2 , in some embodiments, the spacing between multiple capture brushes gradually increases along the direction of air flow entering the vent, such as Figure 1The spacing between the vertically adjacent trapping brushes near the upper end is small, and the spacing gradually increases along the direction of the vertically downward air flow. The spacing between the vertically adjacent trapping brushes near the lower end is large. The trapping brush includes a brush rod 241 and fiber bristles 242 resistant to temperatures above 1000°C. By using the fiber bristles resistant to high temperatures, it can ensure the effective cleaning and collection of dust and maintain the cleaning effect for a long time. The brush rod 241 is the basis for installing the fiber bristles 242. The brush rod 241 can be a steel column made of stainless steel or a rod-shaped structure formed by winding multiple strands of high-temperature resistant steel wires. The fiber bristles 242 are made of materials resistant to temperatures above 1000°C, such as aluminosilicate ceramic fiber, or other materials resistant to temperatures above 1000°C, such as silicon carbide, alumina, nickel-based alloy, etc., and are made into fibrous bristles. Moreover, the fiber bristles are made of corrosion-resistant materials and have a certain anti-corrosion property. For example, the above-mentioned materials themselves also have corrosion-resistant performance, which can solve the problems of high-temperature resistance and anti-corrosion. The arrangement of multiple fiber bristles 242 is similar to that of a brush. Multiple fiber bristles 242 are arranged in multiple rows and columns along the axial direction of the brush rod 241 and are recorded as a group. The arrangement in multiple rows and columns increases the trapping surface area and improves the trapping effect. Multiple groups of fiber bristles 242 are provided along the circumferential direction of the brush rod 241. The multiple groups of fiber bristles 242 are distributed along the circumferential direction of the brush rod 241, enabling the air flow to fully contact when passing through the bristles and further improving the trapping efficiency. The end of the brush rod 241 is connected to the suspension plate 230. For example, the end of the brush rod 241 is inserted into the jack provided on the surface of the suspension plate 230 to form a matching structure.

[0037] In some embodiments, it further includes a vibration device 300, which is arranged outside the main body 100. The vibration device 300 uses a high-frequency electromagnetic vibrator or other conventional vibration equipment. The vibration device 300 provides a vibration force and is fixed to the outer wall of the main body 100 by a bolting method. The output end of the vibration device 300 is connected to the connecting rod 250 and can drive the connecting rod 250 to move axially. For example, the vibrating rod at the output end of the high-frequency electromagnetic vibrator is connected to the connecting rod 250 through a coupling. The connecting rod 250 moves back and forth axially over a short distance under its drive. The connecting rod 250 is used to transmit high-frequency vibration. In this way, a movable connection is formed between the connecting rod 250 and the main body 100. In order to maintain a tight seal, a dynamic sealing structure can be provided on the outer circumference where the connecting rod 250 contacts the main body 100. For example, the sealing material uses asbestos, graphite, asbestos packing, etc. to ensure no steam leakage. The connecting rod 250 is hinged to all the suspension plates 230. For example, hinge holes are respectively provided at the bottom ends of the suspension plates 230, and the connecting rod 250 is arranged on one side or both sides of the suspension plates 230 and is connected by a pin connection method, such as using a hinge bolt 251. In this way, the connecting rod 250 and multiple suspension plates 230 form a hinge connection. A second elastic member 260 is provided between the end of the connecting rod 250 and the partition plate 130. The second elastic member 260 also uses a high-temperature resistant spring. The spring is arranged horizontally. One end of the spring is welded and fixed to the partition plate 130, and the other end is also welded and fixed to the end of the connecting rod 250.

[0038] After the dust collection for a period of time, a large amount of dust will adhere to the aluminosilicate ceramic fiber, increasing the system resistance and reducing the collection effect at the same time. The high-frequency electromagnetic vibrator is started, and the high-frequency reciprocating motion of the connecting rod 250 drives the fiber brush bristles 242 on the suspension plate 230 to vibrate, playing a role in cleaning the dust on the fiber brush bristles 242. During the high-frequency vibration, to prevent the risk of explosion or internal combustion caused by local friction generating sparks, making the connecting rod 250 and the hinge of pure copper can play an explosion-proof role. At the same time, through the first elastic member 220 and the second elastic member 260, it can not only play a certain supporting role, but also increase the amplitude. Both the first elastic member 220 and the second elastic member 260 can be made of pure copper.

[0039] Please refer to Figure 3 , in some embodiments, the air distribution plate 210 includes an air distribution frame 211 and folding plate strips 212. The air distribution frame 211 is connected between the inner wall of the main body 100 and the partition plate 130. The outer edge of the air distribution frame 211 is fixed to the partition plate 130 and the inner wall of the main body 100 by welding. The air distribution frame 211 is horizontally arranged and has a through ventilation opening. The air flow enters the sedimentation area from the ventilation opening. A plurality of folding plate strips 212 are arranged at intervals and connected to the air distribution frame 211, and can be fixed by welding. In this way, it forms a grate shape with the air distribution frame 211, and the gap between adjacent folding plate strips 212 forms a grate gap. The air distribution frame 211 and the folding plate strips 212 are made of stainless steel. The side of the folding plate strip 212 facing the incoming air is set as an inclined surface for guiding the flow, such as the top of the folding plate strip 212 is set as a wedge shape. In this way, it can avoid the formation of carbon deposits due to dust accumulation and block the grate gap, and the inclined surface also plays a role in guiding the flow, making the incoming air flow more evenly distributed when flowing directly downward.

[0040] Please refer to Figure 4, in some embodiments, it further includes a fixed ceiling 410 located in the cleaning cavity 101, a plurality of vapor filtration components, and a blowing component 500. The fixed ceiling 410 is connected between the partition 130 and the inner wall of the main body 100, enabling the air flow to pass through the capture brush and then pass through the vapor filtration components in the opposite flow direction. The outer edge of the fixed ceiling 410 is fully welded to the inner wall of the main body 100 and the side wall of the partition 130. The fixed ceiling 410 is provided with a plurality of mounting openings 411, and a plurality of vapor filtration components are fixed to the mounting openings 411. For example, the vapor filtration component 400 is provided with a connection hole, and the fixed ceiling 410 is connected with a screw 412. When the screw 412 corresponds to the connection hole, the vapor filtration component 400 is installed and fixed to the fixed ceiling 410 by using a nut, and the outlet of the vapor filtration component 400 is opposite to the mounting opening 411. The air outlet of the blowing component 500 extends to the mounting opening 411. In this way, the blowing component 500 can blow the gas discharged from the vapor filtration component 400 and coming out of the mounting opening 411. The blowing component 500 adopts a device capable of providing blowing to avoid the discharge of residual dust. The vapor filtration component is a plurality of filtering devices with filter holes, which can filter the vapor carrying dust for the second time, significantly improving the dust separation effect.

[0041] In the traditional industry, the most effective way to separate high-concentration dust from gas is to use a pulse bag filter. Currently, the highest instantaneous temperature that the flexible material filter used in the pulse bag filter can withstand does not exceed 260 °C, the long-term safe operating temperature does not exceed 240 °C, and the highest temperature of the pulse valve diaphragm used for dust cleaning does not exceed 230 °C, which is much lower than the high-temperature vapor temperature of oil-based cuttings, 350 - 450 °C. When oxygen leaks into the high-temperature oil and water vapor system and spontaneous combustion occurs, the local internal temperature is close to 600 °C, and currently, traditional filter materials simply cannot adapt. The newly developed ceramic filter cartridges 420 or stainless steel sintered membrane filter materials by some manufacturers can be used at 350 °C. However, because the filter bags made of such materials have a large thermal conductivity, they dissipate heat quickly during the start-up and shutdown of the equipment, increasing the temperature difference with the oil and water vapor, which easily causes the oil-phase medium to exhibit a semi-fluid characteristic, and the dust adhesion coefficient increases by 3 - 8 times, making the pressure difference growth rate of the dust collector 2 - 3 times higher than that in the normal working condition. Since the filter cartridges 420 made of this filter material have no elasticity, the filtration effect is greatly reduced, and they cannot operate stably for a long time. The filter materials are all disposable products, with a short service life, a high scrap rate, and a high cost, which is difficult for general enterprises to bear, not conducive to reducing the overall disposal cost of the oil-based cuttings industry, and has no practical value for popularization.

[0042] Please refer to Figure 5, in some embodiments, the above-mentioned filtering device employs a filter cartridge 420. The filter cartridge 420 includes an inner layer 421 and an outer layer 422, as well as a filter medium 423 substrate disposed in the gap between the inner layer 421 and the outer layer 422. The filter medium 423 is a cylindrical layered structure. The inner layer 421 and the outer layer 422 protect the filter medium 423 in the filter cartridge 420, solving the problem that the aluminosilicate ceramic fiber has low tensile strength and is not conducive to pulse jet cleaning. Due to the high-temperature oil steam temperature and dust characteristics of oil-based cuttings, the current filter medium 423 materials and structural forms for high temperature and normal temperature are difficult to meet the requirements. In this embodiment, the high-temperature resistant and corrosion-resistant aluminosilicate ceramic fiber is selected as the filter medium 423 substrate to make a ceramic fiber paper filter bag, so that under the negative pressure suction of 500 Pa, the dust penetration rate does not exceed 10 mg / Nm3. To ensure that the tear resistance of the filter bag meets the use requirements during the pulse jet cleaning at 0.6 MPa. An outer cylinder made of a wire mesh with a pore size of 20 - 30 microns is used on the outside of the filter bag, and an inner cylinder made of a 5 - 10 mm mesh is selected and placed inside the filter bag to ensure that the filter bag does not expand excessively outward during high-pressure pulse jet cleaning and does not contract excessively inward after the cleaning is completed, ensuring that the tear resistance of the made filter bag meets the use requirements. The filter cartridge 420 is made of high-temperature resistant materials. Multiple filter cartridges 420 pass through the mounting holes 411 of the fixed plate 410. After the inner and outer cylinder flanges are overlapped and tightened, the middle filter bag is fixed and sealed, and then fixed and locked by bolts on the holes of the plate. The high-temperature oil steam-containing dust gas passes through the wire mesh of the outer layer 422 and is filtered by the middle ceramic fiber filter medium 423, and then the clean gas is drawn out of the device.

[0043] The oil steam and sulfur / chlorine-containing dust form an acidic microenvironment, resulting in dew point corrosion in the temperature range of 120 - 200 °C. The typical corrosion rate can reach 0.5 - 2 mm / year. The service life of 304 stainless steel material is shortened by 40% - 60% in this environment. The chemical composition of oil-based cuttings is complex and the chloride ion content is high, which is highly corrosive to stainless steel materials. Therefore, the filter medium 423 made of stainless steel material cannot be considered either. Considering the above factors, this application has multiple characteristics such as anti-corrosion, explosion-proof, high-temperature resistance, high oil steam separation efficiency, and energy saving, and well solves the bottleneck problems in the oil-based cuttings disposal industry. It can scale up the disposal scale of a single device. Compared with the current mainstream process flow at the same scale, there are fewer devices, less investment, a simpler process, less floor area, and a lower unit disposal cost.

[0044] Please refer to Figure 6, in some embodiments, it further includes a linear drive device 610, a connecting rod 250, and a scraping frame 630. The linear drive device 610 is installed outside the main body 100. The linear drive device 610 adopts a linear servo motor and is installed on the top of the main body 100 through bolts. A rod hole is opened at the top of the main body 100. After the connecting rod 250 passes through the rod hole, dynamic sealing is carried out with asbestos, graphite, etc. One end of the connecting rod 250 is connected to the output end of the linear servo motor through a coupling. The other end of the connecting rod 250 is fixedly welded to the scraping frame 630. The scraping frame 630 is located in the cleaning cavity 101. The scraping frame 630 is composed of multiple layers of equidistant metal frames. A plurality of scraping blades 631 are installed between the frames. The scraping blades 631 are made of annular structures of copper sheets. They are connected to the servo motor at the top end of the main body 100 through the connecting rod 250 and can move up and down in the vertical direction under the drive of the motor. Each scraping blade 631 corresponds to a filtering device. The scraping blade 631 is sleeved on the outer periphery of the filtering device, that is, the annular scraping blade 631 is arranged around the outer wall of the filter cartridge 420. In this way, the scraping blade 631 scrapes off the dust adhering to the outer layer 422 wire mesh of the filter cartridge 420, reduces the filtering resistance of the filter cartridge 420, and solves the problems of dust accumulation outside the filter cartridge 420, difficult cleaning, and short equipment service life. The scraping blade 631 is made of copper sheet, has a certain flexibility, and its hardness is lower than that of the steel wire mesh filter cartridge 420. It does not damage the wire mesh when scraping off the dust adhesion layer. The flexibility can adjust part of the assembly error. The copper sheet solves the problem that sparks may be generated due to friction and impact inside, ensuring that no sparks are generated during friction on the metal layer surface to cause safety risks.

[0045] In some embodiments, the injection assembly 500 includes a gas supply device 510, a ventilation valve 520, and an injection conduit 530. The gas supply device 510 is located outside the main body 100. The gas supply device 510 uses a heated nitrogen gas storage tank. Nitrogen gas is used as the dust cleaning gas source, which solves the problems of oxygen enrichment and prevention of combustion and explosion. The tank body is fixed to the outer wall of the main body 100 through conventional flanges or couplings and bolts, which is a conventional installation method. The nitrogen gas heated storage tank is a device for providing heated nitrogen gas, and its gas outlet is connected to the injection conduit 530. The joint at the connection ensures sealing. The other end of the injection conduit 530 extends to the installation port 411 and branches out into multiple nozzles. The nozzles are aligned with each installation port 411. The nozzles extend into the installation port 411 for a certain distance and are placed in the filter cartridge 420. The ventilation valve 520 is installed on the injection conduit 530. The ventilation valve 520 uses a high-temperature electromagnetic pulse valve, which can provide nitrogen gas to the outlet of the filter cartridge 420 at a high frequency. The discharged nitrogen gas is used to purge the discharged vapor, and the residual dust is left in the filter cartridge 420. In some embodiments, a discharger 700 is further included, which is provided in the main body 100. The inlet of the discharger 700 is communicated with the cleaning cavity 101. The inner wall of the main body 100 adjacent to the discharger 700 is set as an inclined surface. Specifically, the bottom of the cleaning cavity 101 of the main body 100 is set as a conical surface. The dust can flow along the conical surface to the inlet of the discharger 700 after falling. In this way, the discharger 700 controls the discharge of the dust. The discharger 700 uses a valve for airtightness, such as a conventional airtight discharging valve.

[0046] In some embodiments, the main body 100 includes a housing 110 and a thermal insulation layer 120. The two ends of the housing 110 are respectively an intake passage 102 and an exhaust passage 103. There is a cleaning cavity 101 inside the housing 110, which divides the housing 110 into an intake section 111, a processing section 112, and an exhaust section 113. The intake section 111 and the exhaust section 113 respectively adopt a pipeline structure, and the processing section 112 adopts a container with a size larger than that of the intake section 111 and the exhaust section 113, so that the cleaning cavity 101 has enough space to accommodate the dust collection assembly 200 and the vapor filtration assembly 400. The bottom of the processing section 112 is set as a funnel shape, and the above-mentioned discharger 700 is installed at the outlet of the funnel-shaped structure, so that the fallen dust can be quickly collected. The housing 110 is welded by chromium-molybdenum steel plates, and reinforcing ribs are also provided on the outer wall or the inner wall of the housing 110. For example, 14# channel steel is used for cross-shaped stiffening on the outer wall of the housing 110 to ensure that it does not deform under high-temperature conditions and to ensure the assembly accuracy of other components. The thermal insulation layer 120 is coated on the outside of the housing 110. The thermal insulation layer 120 uses aluminosilicate fiber felt, and the insulation thickness is not less than 200 mm to minimize heat loss as much as possible and ensure that the temperature of the high-temperature oil-water mixed vapor in the main body 100 is not lower than 350 °C, so that the high-boiling organic substances in it do not condense.

[0047] The working principle of the present application is as follows:

[0048] The high-temperature oil-water mixed vapor carries a large amount of dust. After the airflow enters the main body 100 through the air inlet channel 102, under the action of the air distribution plate 210, the airflow evenly flows into the lower sedimentation area from the slits of the air distribution plate 210 on the left side of the partition plate 130 ( Figure 1 middle). The cross-sectional area of the sedimentation area is 10-20 times the average cross-sectional area of the pipeline through which the airflow flows, the flow velocity is greatly reduced, and the residence time is extended; large particulate dust carried by the airflow or instantaneously affected by the heat absorption of local components when entering the main body 100, resulting in some dust being liquefied and condensed into small lumps due to the decrease in the boiling point of organic matter, etc., and is captured when flowing through the fiber bristles 242 for dust collection, reducing the content of sticky dust carried by the airflow and reducing the filtration pressure of the subsequent filter cartridge 420. After operating for a period of time, the high-frequency electromagnetic vibrator can be started, and the suspension plate 230 is driven to vibrate through the connecting rod 250, so that the accumulated dust on the fiber bristles 242 falls onto the lower inclined surface and is discharged out of the main body 100 through the bottom discharger 700. The high-temperature oil-water mixed dust-containing gas after sedimentation separation bypasses the partition plate 130 from the lower part of the sedimentation area and enters the filtration area on the right side of the partition plate 130 ( Figure 1 middle), enters a plurality of filter cartridges 420 from the side of the filter cartridge 420, and the filtered dust falls into the lower ash hopper. The high-temperature oil-water mixed vapor after purification and filtration is extracted by the fan from the outlet and enters the oil-water separator for condensation separation. When the filter cartridge 420 filters the gas containing residual dust at high temperature, fine dust continuously accumulates on the surface of the filter cartridge 420 and the filter medium 423, resulting in an increase in the filtration resistance. The pulse jet assembly 500 is used to introduce high-temperature and high-pressure pure nitrogen into the outlet of the filter cartridge 420 and inside the filter cartridge 420 for back blowing to ensure that the resistance of the filter cartridge 420 is within a suitable range.

[0049] When the high-temperature oil-water vapor dusty gas stream contacts the wire mesh on the outer wall of the filter cartridge 420, a temperature difference will be caused between the two, and condensation will occur microscopically, resulting in an increase in the viscosity of the trace dusty gas, which continuously adheres to the surface of the outer layer 422 of the filter cartridge 420. When using high-pressure nitrogen for dust cleaning, affected by the temperature resistance of the pulse-type ventilation valve 520, the nitrogen temperature is lower than the internal high-temperature oil-water vapor temperature, and a temperature difference also appears during dust cleaning, increasing the speed of dust adsorption on the surface of the filter cartridge 420. Using pulse dust cleaning can remove some dust, but the pores of the wire mesh on the outer layer 422 of the filter cartridge 420 are large, and the pressure and flow rate are greatly reduced after the pulse cleaning penetrates through the filter media 423 layer, making it difficult to thoroughly clean the adhered dust, which will cause more and more dust to adhere to the outer layer 422 of the filter cartridge 420, and the filtration resistance will become larger and larger, affecting normal use. After the present application has been running for a period of time, according to the increase in the resistance of the filter cartridge 420, the linear servo motor can be turned on online, and multiple groups of motors run smoothly and synchronously, slowly lifting the movable scraping frame 630 to the corresponding stroke, and the copper scraping blades 631 on the scraping frame 630 will scrape off the relatively thick dust adhered to the outside of the filter cartridge 420 to reduce the resistance of the filter cartridge 420, and clean the outer surface of the filter cartridge 420 online without stopping the machine.

[0050] Regarding the specific implementation manner of the present application, it should be noted that:

[0051] In the description of the present application, unless otherwise clearly specified and limited, terms such as "connection", "fixation", "communication" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral molding; "connection" can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited; "communication" can be the internal of two components and between the two components, or the space communication between the two, and the two are directly or indirectly connected through the part forming the space. Terms such as "setting", "installation", "providing", "configuring" should also be understood in a broad sense. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0052] In the description of the present application, the orientation or positional relationship indicated by terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the system or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application. All directional indications are only used to explain the relative positional relationship and movement conditions between components in a certain specific posture. If this specific posture changes, then the directional indication also changes accordingly.

[0053] In the description of the present application, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed that conform to the concept of the present application, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the presence of additional elements in the process, method, article or device comprising the said element.

[0054] In the description of the present application, descriptions such as "first", "second", etc. are only for the purpose of distinguishing and do not imply any actual relationship or order between entities or operations, nor can they be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second" may explicitly or implicitly include at least one of such features. The term "more than two" includes two or more than two. Additionally, in the present application, examples of various materials, processes and parameters are merely some examples for implementing the solution of the present application. Those of ordinary skill in the art can realize that other materials, processes and parameters that conform to the technical concept of the present application also belong to the embodiments of the present application.

[0055] In the description of the present application, the descriptions with reference to terms such as "some embodiments", "optional embodiments", "examples", "specific examples", "optional examples" or "optional embodiments" mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application, but do not mean that all possible forms of the present invention are illustrated and described by these embodiments. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

[0056] In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. Although the embodiments of the present application have been shown and described, various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and purposes of the present application. Those of ordinary skill in the art can understand that according to the technical revelations disclosed in the present application, various other specific changes and combinations of embodiments that do not depart from the essence of the present application are still within the protection scope defined by the claims of the present invention and its equivalent technical solutions.

[0057] At the same time, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present application.

Claims

1. An oil-water mixed vapor cleaning device, characterized in that, Comprising: A main body, internally provided with a cleaning cavity, an air inlet channel and an air outlet channel that are independently communicated with the cleaning cavity; A dust collection assembly, arranged in the cleaning cavity and occupying the flow cross-section of the air flow in the cleaning cavity; the dust collection assembly includes a air distribution plate with a ventilation opening, a plurality of first elastic members, a plurality of hanging plates, a plurality of collection brushes and a connecting rod; the air distribution plate is connected to the main body and is located in the cleaning cavity, both ends of the plurality of first elastic members are respectively connected to the air distribution plate and the hanging plates, the plurality of hanging plates are arranged at intervals in the cleaning cavity, the collection brush is provided with a plurality of fiber bristles for attaching particulate matter, the plurality of collection brushes are respectively connected to both sides of the hanging plates, the intervals between adjacent hanging plates are all over the collection brushes, so that the ventilation opening position corresponds to the collection brush, the connecting rod is connected to the plurality of hanging plates, and one end of the connecting rod is connected to the main body; The intervals between the plurality of collection brushes gradually increase along the direction in which the air flow enters the ventilation opening; The air distribution plate includes an air distribution frame and folding strip, the air distribution frame is connected between the inner wall of the main body and the partition plate, the air distribution frame has a through ventilation opening, the plurality of folding strips are arranged at intervals and connected to the air distribution frame, and the folding strip is provided with an inclined surface for guiding air on the air inlet side.

2. The oil-water mixed vapor cleaning device according to claim 1, characterized in that, A partition plate connected to the main body is arranged in the main body, the partition plate is arranged between the air inlet channel and the air outlet channel, the partition plate extends into the cleaning cavity and coincides with the corresponding position of the hanging plate, and the partition plate is spaced from the hanging plate, so that the air flow forms opposite flow directions in the cleaning cavity.

3. The oil-water mixed vapor cleaning device according to claim 2, wherein The collection brush includes a brush rod and fiber bristles resistant to above 1000 °C, a plurality of the fiber bristles are arranged in multiple rows and columns along the axial direction of the brush rod and are recorded as a group, and multiple groups of the fiber bristles are arranged along the circumferential direction of the brush rod, and the end of the brush rod is connected to the hanging plate.

4. The oil-water mixed vapor cleaning device according to claim 2, characterized in that, It further includes a vibration device, arranged outside the main body, the output end of the vibration device is connected to the connecting rod and can drive the connecting rod to move axially, and the connecting rod is hinged to all the hanging plates, and a second elastic member is arranged between the end of the connecting rod and the partition plate.

5. The oil-water mixed vapor cleaning device according to claim 2, characterized in that, It further includes a fixed flower plate located in the cleaning cavity, a plurality of steam filtering assemblies and a blowing assembly, the fixed flower plate is connected between the partition plate and the inner wall of the main body, so that the air flow passes through the collection brush and then passes through the steam filtering assembly in the opposite flow direction, the fixed flower plate is provided with a plurality of installation openings, the plurality of steam filtering assemblies are fixed to the installation openings, the air outlet of the blowing assembly extends to the installation openings, the steam filtering assembly is a filter cartridge, and the filter cartridge includes an inner layer, an outer layer, and a filter media substrate arranged in the gap between the inner layer and the outer layer.

6. The oil-water mixed vapor cleaning device according to claim 5, characterized in that, It further includes a linear driving device, a connecting rod and a scraping frame, the linear driving device is installed outside the main body, the output end of the linear driving device is connected to the connecting rod, the connecting rod is connected to the scraping frame, the scraping frame is located in the cleaning cavity, the scraping frame is provided with a plurality of scraping blades, each scraping blade corresponds to a filter cartridge, and the scraping blade is sleeved on the outer circumference of the filter cartridge.

7. The oil-water mixed vapor cleaning device according to claim 5, characterized in that, The blowing assembly includes a gas supply device, a ventilation valve, and a blowing conduit. The gas supply device is located outside the main body. One end of the blowing conduit is connected to the gas supply device, and the other end extends to the installation opening. The ventilation valve is installed on the blowing conduit.

8. The oil-water mixed vapor cleaning device according to any one of claims 1-7, characterized in that, It further includes a discharger provided in the main body. The inlet of the discharger is communicated with the cleaning cavity, and the inner wall of the main body adjacent to the discharger is set as an inclined surface.

9. The oil-water mixed vapor cleaning device according to any one of claims 1-7, characterized in that, The main body includes a housing and a thermal insulation layer. The two ends inside the housing are respectively the intake passage and the exhaust passage. The cleaning cavity is provided inside the housing. Reinforcing ribs are further provided on the outer wall or the inner wall of the housing. The thermal insulation layer is coated on the outside of the housing.

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