Flow self-control type multi-field coupling oil-water efficient separation tank

Abstract

The invention relates to the technical field of oil-water separation, and discloses a flow self-control type multi-field coupling oil-water high-efficiency separation tank, which comprises a chemical adding, stirring and filtering module arranged at the top of the device and used for stirring raw materials; the multi-section cyclone separation module is arranged below the dosing, stirring and filtering module and is used for separating oil and water; the cyclone gravity coupling module is arranged below the multi-section cyclone separation module, so that an oil phase is quickly separated under the action of gravity; and the multi-section cyclone separation module comprises a first-stage oil phase collection device. The multi-section cyclone separation module is provided with four sections of liquid inlet holes with different heights and can automatically adapt to the requirements of different treatment capacities, the liquid level changes along with the treatment liquid amount, the path for liquid to enter a cyclone is automatically adjusted, when the treatment capacity is small, the liquid enters the liquid inlet hole of the lower section, and when the treatment capacity is large, the liquid level rises to the liquid inlet hole of the higher section, and the liquid level rises to the liquid inlet hole of the lower section. The eight cyclones connected in parallel perform primary oil-water separation by using centrifugal force, so that the treatment capacity is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of oil-water separation, in particular to a flow automatic control type multi-field coupling oil-water high-efficiency separation tank. Background Art

[0002] In many industrial applications, the mixing of oil and water is a common phenomenon, such as oil extraction, oil refining, food processing, chemical manufacturing, and wastewater treatment. These processes will produce a large amount of oil-water mixture, in which the oil can exist in the form of emulsified oil, dispersed oil or free oil. In many industrial fields, the mixing of oil and water not only affects the quality of the product, but also may interfere with the stability of the process. Through oil-water separation, the oil phase or water phase in the mixture can be removed to ensure the continuity and stability of the production process. In many industrial fields, the mixing of oil and water not only affects the quality of the product, but also may interfere with the stability of the process. Through oil-water separation, the oil phase or water phase in the mixture can be removed to ensure the continuity and stability of the production process.

[0003] Among the existing oil-water separation technologies, common oil-water separation methods mainly include gravity sedimentation separation, flotation separation and centrifugal separation based on mechanical action. Most traditional oil-water separation equipment relies on the principle of gravity sedimentation, that is, through the difference in density between oil and water, the oil phase floats and the water phase sinks, thereby achieving two-phase separation.

[0004] However, the separation efficiency of gravity sedimentation is low, especially for cases with large processing volume and uneven oil-water mixing ratio. The separation process takes a long time and the effect is not ideal. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a flow-automatic multi-field coupled oil-water high-efficiency separation tank, which solves the problem that the separation efficiency of gravity sedimentation is low, especially for cases with large processing volume and uneven oil-water mixing ratio, the separation process takes a long time and the effect is not ideal.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a flow automatic control type multi-field coupling oil-water high-efficiency separation tank, comprising: a dosing stirring and filtering module, which is arranged at the top of the device and is used to stir the raw materials; a multi-stage cyclone separation module, which is arranged under the dosing stirring and filtering module and is used to separate oil and water; a cyclone gravity coupling module, which is arranged under the multi-stage cyclone separation module, so that the oil phase is quickly separated by gravity; the multi-stage cyclone separation module comprises a primary oil phase collection device, which is arranged below the multi-stage cyclone separation module, a parallel cyclone group is fixed inside the primary oil phase collection device, a primary spiral flow channel is fixed inside the parallel cyclone group, a cyclone liquid inlet is fixed inside the parallel cyclone group, a cyclone overflow port is penetrated inside the primary spiral flow channel, an inverted cone is fixed inside the parallel cyclone group, and a cyclone bottom flow port is observed inside the bottom end of the parallel cyclone group, and the parallel cyclone group has a total of eight cyclones.

[0007] Preferably, a liquid delivery inclined plate is fixed inside the multi-stage cyclone separation module, and the lower surface of the liquid delivery inclined plate is arranged below the dosing agitation filtration module. A liquid collecting device is fixed on the lower surface of the liquid delivery inclined plate. Four-stage liquid inlet holes are opened inside the liquid collecting device, and the outer wall of the four-stage liquid inlet hole passes through the interior of the parallel cyclone group. A first-level water outlet pipe is fixed at the bottom end of the parallel cyclone group, and a first-level oil outlet pipe is fixed at the bottom end of the multi-stage cyclone separation module.

[0008] Preferably, a liquid inlet pipe is fixed at the top of the drug-adding stirring and filtering module, and a drug-adding pipe is fixed at the top of the drug-adding stirring and filtering module.

[0009] Preferably, a motor is fixed on the upper surface of the dosing stirring and filtering module, a liquid distributor is rotated at the driving end of the motor, the outer wall of the liquid distributor is arranged inside the dosing stirring and filtering module, an agitator is fixed at the output end of the motor, the outer wall of the agitator rotates inside the dosing stirring and filtering module, a sealed bearing is fixed inside the dosing stirring and filtering module, and the inside of the sealed bearing is fixed at the driving end of the motor.

[0010] Preferably, a filter screen is fixed to the bottom end of the dosing stirring and filtering module, and the outer wall of the filter screen is fixed to the upper surface of the liquid delivery inclined plate.

[0011] Preferably, a left-right symmetrical secondary spiral flow channel is provided inside the cyclone gravity coupling module, a gravity sedimentation tank is fixed inside the secondary spiral flow channel, a secondary oil collecting device is fixed inside the cyclone gravity coupling module, and a secondary oil outlet pipe is observed at the bottom end of the secondary oil collecting device.

[0012] Preferably, an air flotation device is fixed inside the cyclone gravity coupling module, and an air inlet pipe is fixed inside the air flotation device.

[0013] Preferably, a secondary water outlet pipe is fixed inside the secondary spiral flow channel, and a swirl liquid inlet hole is observed inside the secondary spiral flow channel.

[0014] Preferably, a large cavity is provided inside the liquid collecting device and the primary oil phase collecting device, allowing a large amount of treatment liquid and oil phase to enter.

[0015] Preferably, the parallel cyclone group consists of eight cyclones in total. When in operation, the treated liquid enters the cyclone through the cyclone liquid inlet.

[0016] Working principle: The device is placed vertically on the ground. The device is mainly divided into three modules: dosing stirring and filtering module, multi-stage cyclone separation module, and cyclone gravity coupling module. When working, the oil-water mixture enters the device through the liquid inlet pipe, and the medicine enters the device through the dosing pipe. After passing through the liquid outlet hole on the liquid distributor, the liquid and the medicine are mixed and flow out evenly. The stirrer rotates continuously under the drive of the motor, stirring the liquid to turn large oil droplets into small oil droplets. The stirred liquid falls onto the filter net, filters out the solid medicine in the liquid and flows into the next module. The motor The rotating shaft passes through the sealed bearing, and the sealed bearing is provided with a bearing inside, which can make the agitator rotate stably. The liquid collecting device and the first-stage oil phase collecting device are provided with a large cavity, which can allow a large amount of treated liquid and oil phase to enter. As the liquid continues to enter the liquid collecting device, the liquid level in the liquid collecting device continues to rise. When the processing volume is small, when the liquid level reaches the lowest height of the four-stage liquid inlet hole, the treated liquid enters the cyclone and begins to separate, and the liquid level gradually decreases and maintains stability. When the processing volume is large, the liquid level rises faster, and the liquid level enters the four-stage with a lower height. After the liquid inlet hole, the liquid level continues to rise and reaches the four-stage liquid inlet hole of the next height, and so on to adapt to different processing volume requirements. The parallel cyclone group consists of eight cyclones. When working, the treated liquid enters the cyclone through the cyclone inlet, and is centrifugally accelerated through the primary spiral flow channel. The oil and water phases are separated by the centrifugal force generated by the cyclone using the characteristics of the oil-water density difference, and the primary separation of the oil and water phases is achieved. The separated oil enters the large cavity of the primary oil phase collection device through the cyclone overflow port, and the separated water phase passes through the cyclone The bottom flow outlet of the device finally flows into the swirl gravity coupling module. When the liquid flows through the secondary spiral flow channel, a rotating flow field is generated. Under the action of centrifugal force, the oil phase approaches the inner wall and enters the gravity sedimentation tank through the swirl liquid inlet hole. As the liquid inflow continues to increase, the liquid level in the gravity sedimentation tank continues to rise. Due to the low density of the oil phase, it floats on the surface under the action of gravity. After the liquid level reaches a certain height, the oil phase attached to the top enters the secondary oil collecting device and is discharged from the device through the secondary oil outlet pipe. The water phase that reaches the bottom through the secondary spiral flow channel is discharged from the device through the secondary water outlet pipe.

[0017] The present invention provides a flow automatic control type multi-field coupling oil-water efficient separation tank. It has the following beneficial effects:

[0018] 1. The multi-stage cyclone separation module of the present invention has four liquid inlet holes of different heights, which can automatically adapt to the needs of different processing volumes. The liquid level changes with the processing liquid volume, and the path of the liquid entering the cyclone is automatically adjusted. When the processing volume is small, the liquid enters the low-stage liquid inlet hole. When the processing volume is large, the liquid level rises to the higher liquid inlet hole. The eight parallel cyclones use centrifugal force to perform primary oil-water separation, which greatly improves the processing capacity. The multi-stage cyclone design based on centrifugal force improves the separation efficiency, so that the equipment can still maintain efficient operation when facing high processing volumes.

[0019] 2. The multi-stage cyclone separation module of the present invention has four liquid inlet holes at different heights, which can automatically adapt to the needs of different processing volumes. The liquid level height changes with the amount of processed liquid, and automatically adjusts the path of the liquid entering the cyclone. When the processing volume is small, the liquid enters the lower liquid inlet hole. When the processing volume is large, the liquid level rises to the higher liquid inlet hole. The eight parallel cyclones use centrifugal force to perform primary oil-water separation, which greatly improves the processing capacity. Compared with the traditional sedimentation process, the multi-stage cyclone design based on centrifugal force improves the separation efficiency, so that the equipment can still maintain efficient operation when facing high processing volumes.

[0020] 3. The present invention combines the gravity sedimentation process to form a cyclone gravity coupled separation module. In the secondary stage of oil-water separation, a rotating flow field is generated when the liquid passes through the secondary spiral flow channel. The oil phase is separated by centrifugal force and enters the gravity sedimentation tank. The flotation device is combined to accelerate the floating of oil droplets, so that the oil phase is quickly separated by gravity and enters the oil collection device. The dual effects of cyclone separation and gravity sedimentation greatly improve the efficiency of oil-water separation, ensuring that the treated water phase and oil phase can be efficiently discharged. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a cross-sectional view of the present invention;

[0022] Figure 2 This is a cross-sectional view of the dosing stirring and filtering module of the present invention;

[0023] Figure 3 It is an exploded view of the dosing stirring and filtering module components of the present invention;

[0024] Figure 4 It is a cross-sectional view of a multi-stage cyclone separation module of the present invention;

[0025] Figure 5 is a cross-sectional view of a cyclone of the present invention;

[0026] Figure 6 This is an appearance diagram of the swirl gravity coupling module of the present invention;

[0027] Figure 7 It is a cross-sectional view of the swirl gravity coupling module of the present invention.

[0028] Among them, 1. Dosing stirring and filtering module; 101. Liquid inlet pipe; 102. Dosing pipe; 103. Motor; 104. Liquid distributor; 105. Sealed bearing; 106. Agitator; 107. Filter; 2. Multi-stage cyclone separation module; 201. Liquid delivery inclined plate; 202. Liquid collecting device; 203. Primary oil phase collecting device; 204. Four-stage liquid inlet hole; 205. Parallel cyclone group; 2051. Cyclone liquid inlet; 205 2. Cyclone bottom flow outlet; 206. Primary water outlet pipe; 207. Primary oil outlet pipe; 208. Primary spiral flow channel; 2081. Cyclone overflow port; 209. Inverted cone; 3. Cyclone gravity coupling module; 301. Secondary spiral flow channel; 3011. Cyclone liquid inlet hole; 302. Gravity sedimentation tank; 303. Secondary oil collecting device; 304. Air flotation device; 305. Air inlet pipe; 306. Secondary water outlet pipe; 307. Secondary oil outlet pipe. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Please refer to the attached Figure 1 , Attachment Figure 3 and attached Figure 4The embodiment of the present invention provides a flow automatic control type multi-field coupling oil-water efficient separation tank, comprising: a dosing stirring and filtering module 1, which is arranged at the top of the device and is used to stir the raw materials; a multi-stage cyclone separation module 2, which is arranged under the dosing stirring and filtering module 1 and is used to separate oil and water; a cyclone gravity coupling module 3, which is arranged under the multi-stage cyclone separation module 2, so that the oil phase is quickly separated by gravity; the multi-stage cyclone separation module 2 includes a primary oil phase collection device 203, the primary oil phase collection device 203 is arranged below the multi-stage cyclone separation module 2, a parallel cyclone group 205 is fixed inside the primary oil phase collection device 203, a primary spiral flow channel 208 is fixed inside the parallel cyclone group 205, and a cyclone liquid inlet 2051 is fixed inside the parallel cyclone group 205, A cyclone overflow port 2081 is penetrated inside the primary spiral flow channel 208, an inverted cone 209 is fixed inside the parallel cyclone group 205, a cyclone bottom flow port 2052 is observed inside the bottom end of the parallel cyclone group 205, a liquid delivery inclined plate 201 is fixed inside the multi-stage cyclone separation module 2, the lower surface of the liquid delivery inclined plate 201 is arranged below the dosing stirring and filtering module 1, a liquid collecting device 202 is fixed on the lower surface of the liquid delivery inclined plate 201, a four-stage liquid inlet hole 204 is penetrated inside the liquid collecting device 202, the outer wall of the four-stage liquid inlet hole 204 penetrates the interior of the parallel cyclone group 205, a primary water outlet pipe 206 is fixed at the bottom end of the parallel cyclone group 205, a primary oil outlet pipe 207 is fixed at the bottom end of the multi-stage cyclone separation module 2, and the parallel cyclone group 205 has a total of eight cyclones.

[0031] Specifically, the oil-water mixture enters the dosing stirring and filtering module 1 at the top of the device through the liquid inlet pipe 101, and the medicine enters the module through the dosing pipe 102. Under the action of the liquid distributor 104, the medicine and the liquid are evenly mixed. The liquid distributor 104 is provided with a plurality of liquid outlet holes to ensure the uniformity of mixing. At this time, the agitator 106 rotates under the drive of the motor 103, driving the stirring process of the liquid, dispersing large oil droplets into smaller oil droplets, and forming a stable emulsion. The stirred liquid then flows through the filter screen 107, and after filtering out the solid medicine residues that may exist in the liquid, it enters the next module for further processing. The dosing stirring process not only promotes the uniform distribution of the medicine, but also improves the subsequent oil-water separation effect by breaking up the oil droplets. The rotating shaft of the motor 103 of the module is connected to the agitator 106 through the sealed bearing 105. The sealed bearing 105 ensures the air tightness of the system, and a bearing is provided inside to ensure the stable rotation of the agitator 106.

[0032] Please refer to the attached Figure 1 and attached Figure 2A liquid inlet pipe 101 is fixed to the top of the dosing stirring and filtering module 1, a dosing pipe 102 is fixed to the top of the dosing stirring and filtering module 1, a motor 103 is fixed to the upper surface of the dosing stirring and filtering module 1, a liquid distributor 104 is rotated at the driving end of the motor 103, and the outer wall of the liquid distributor 104 is arranged inside the dosing stirring and filtering module 1, a stirrer 106 is fixed to the output end of the motor 103, and the outer wall of the stirrer 106 rotates inside the dosing stirring and filtering module 1, a sealed bearing 105 is fixed inside the dosing stirring and filtering module 1, and the inside of the sealed bearing 105 is fixed to the driving end of the motor 103, a filter screen 107 is fixed to the bottom end of the dosing stirring and filtering module 1, and the outer wall of the filter screen 107 is fixed to the upper surface of the liquid feeding inclined plate 201.

[0033] Specifically, the oil-water mixture enters the dosing stirring and filtering module 1 at the top of the device through the liquid inlet pipe 101, and the medicine enters the module through the dosing pipe 102. Under the action of the liquid distributor 104, the medicine and the liquid are evenly mixed. The liquid distributor 104 is provided with a plurality of liquid outlet holes to ensure the uniformity of mixing. At this time, the agitator 106 rotates under the drive of the motor 103, driving the stirring process of the liquid, dispersing large oil droplets into smaller oil droplets, and forming a stable emulsion. The stirred liquid then flows through the filter screen 107, and after filtering out the solid medicine residues that may exist in the liquid, it enters the next module for further processing. The dosing stirring process not only promotes the uniform distribution of the medicine, but also improves the subsequent oil-water separation effect by breaking up the oil droplets. The rotating shaft of the motor 103 of the module is connected to the agitator 106 through the sealed bearing 105. The sealed bearing 105 ensures the air tightness of the system, and a bearing is provided inside to ensure the stable rotation of the agitator 106.

[0034] Please see attached Figure 5 , Attachment Figure 6 and attached Figure 7 A left-right symmetrical secondary spiral flow channel 301 is arranged inside the gravity coupling module 3 of the cyclone. A gravity settling tank 302 is fixed inside the secondary spiral flow channel 301. A secondary oil collecting device 303 is fixed inside the gravity coupling module 3 of the cyclone. A secondary oil outlet pipe 307 is observed at the bottom of the secondary oil collecting device 303. An air flotation device 304 is fixed inside the gravity coupling module 3 of the cyclone. An air inlet pipe 305 is fixed inside the air flotation device 304. A secondary water outlet pipe 306 is fixed inside the secondary spiral flow channel 301. A swirl liquid inlet hole 3011 is observed inside the secondary spiral flow channel 301. Large cavities are arranged inside the liquid collecting device 202 and the primary oil phase collecting device 203, so that a large amount of treated liquid and oil phase can enter. The parallel cyclone group 205 consists of eight cyclones in total. When working, the treated liquid enters the cyclone through the cyclone liquid inlet 2051.

[0035] Specifically, finally, the separated water phase enters the cyclone gravity coupling module 3, and this module further utilizes the combined action of centrifugal force and gravity through the secondary spiral flow channel 301 to perform secondary separation on the remaining oil-water mixture. The water phase is again subjected to the action of centrifugal force in the secondary spiral flow channel 301, and the oil phase is concentrated on the inner wall due to its low density, and then enters the gravity settling tank 302 through the cyclone liquid inlet hole 3011. As the liquid continues to flow in, the liquid level in the gravity settling tank 302 gradually rises, and the oil phase floats to the surface under the action of gravity. When the oil phase liquid level reaches a certain height, the floating oil will enter the secondary oil collecting device 303 and be discharged from the device through the secondary oil outlet pipe 307. At the same time, the water phase is gradually discharged at the bottom of the spiral flow channel, and the entire separation process is completed through the secondary water outlet pipe 306.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flow-controlled multi-field coupled oil-water high-efficiency separation tank, It is characterized in that include: A dosing stirring and filtering module (1), which is arranged at the top of the device and is used to stir the raw materials; A multi-stage cyclone separation module (2), which is arranged under the dosing stirring filtration module (1) and is used to separate oil and water; The cyclone gravity coupling module (3) is arranged under the multi-stage cyclone separation module (2) to enable the oil phase to be quickly separated by gravity; The multi-stage cyclone separation module (2) comprises a primary oil phase collection device (203), the primary oil phase collection device (203) being arranged below the multi-stage cyclone separation module (2), a parallel cyclone group (205) being fixed inside the primary oil phase collection device (203), a primary spiral flow channel (208) being fixed inside the parallel cyclone group (205), a cyclone liquid inlet (2051) being fixed inside the parallel cyclone group (205), a cyclone overflow port (2081) penetrating inside the primary spiral flow channel (208), an inverted cone (209) being fixed inside the parallel cyclone group (205), a cyclone bottom flow port (2052) being observed inside the bottom end of the parallel cyclone group (205), and the parallel cyclone group (205) having a total of eight cyclones.

2. According to claim 1, a flow automatic control type multi-field coupling oil-water high-efficiency separation tank, It is characterized in that A liquid delivery inclined plate (201) is fixed inside the multi-stage cyclone separation module (2), the lower surface of the liquid delivery inclined plate (201) is arranged below the dosing stirring and filtering module (1), a liquid collecting device (202) is fixed on the lower surface of the liquid delivery inclined plate (201), a four-stage liquid inlet hole (204) is penetrated inside the liquid collecting device (202), the outer wall of the four-stage liquid inlet hole (204) penetrates the inside of the parallel cyclone group (205), a primary water outlet pipe (206) is fixed at the bottom end of the parallel cyclone group (205), and a primary oil outlet pipe (207) is fixed at the bottom end of the multi-stage cyclone separation module (2).

3. According to claim 1, a flow automatic control type multi-field coupling oil-water efficient separation tank, It is characterized in that A liquid inlet pipe (101) is fixed at the top of the drug-adding stirring and filtering module (1), and a drug-adding pipe (102) is fixed at the top of the drug-adding stirring and filtering module (1).

4. A flow automatic control multi-field coupling oil-water efficient separation tank according to claim 3, It is characterized in that A motor (103) is fixed on the upper surface of the dosing stirring and filtering module (1); a liquid distributor (104) is rotatably mounted on the driving end of the motor (103); an outer wall of the liquid distributor (104) is arranged inside the dosing stirring and filtering module (1); a stirrer (106) is fixed on the output end of the motor (103); an outer wall of the stirrer (106) rotates inside the dosing stirring and filtering module (1); a sealed bearing (105) is fixed inside the dosing stirring and filtering module (1); and the inside of the sealed bearing (105) is fixed to the driving end of the motor (103).

5. According to claim 3, a flow automatic control type multi-field coupling oil-water efficient separation tank, It is characterized in that A filter screen (107) is fixed to the bottom end of the dosing stirring and filtering module (1), and the outer wall of the filter screen (107) is fixed to the upper surface of the liquid delivery inclined plate (201).

6. A flow automatic control multi-field coupling oil-water efficient separation tank according to claim 1, It is characterized in that The cyclone gravity coupling module (3) is provided with a bilaterally symmetrical secondary spiral flow channel (301) inside, a gravity settling tank (302) is fixed inside the secondary spiral flow channel (301), a secondary oil collecting device (303) is fixed inside the cyclone gravity coupling module (3), and a secondary oil outlet pipe (307) is observed at the bottom end of the secondary oil collecting device (303).

7. A flow automatic control multi-field coupling oil-water efficient separation tank according to claim 6, It is characterized in that An air flotation device (304) is fixed inside the cyclone gravity coupling module (3), and an air inlet pipe (305) is fixed inside the air flotation device (304).

8. A flow automatic control multi-field coupling oil-water efficient separation tank according to claim 6, It is characterized in that A secondary water outlet pipe (306) is fixed inside the secondary spiral flow channel (301), and a swirl liquid inlet hole (3011) is observed inside the secondary spiral flow channel (301).

9. A flow automatic control multi-field coupling oil-water efficient separation tank according to claim 2, It is characterized in that The liquid collecting device (202) and the first-stage oil phase collecting device (203) are provided with a large cavity inside, allowing a large amount of treatment liquid and oil phase to enter.

10. The flow automatic control multi-field coupling oil-water efficient separation tank according to claim 1, It is characterized in that The parallel cyclone group (205) consists of eight cyclones in total. When in operation, the treated liquid enters the cyclone through the cyclone liquid inlet (2051).

Images