Separating device for compounding and purifying mahogany petroleum sulfonate surfactant

Abstract

The invention discloses a separation device for compounding and purifying a mahogany petroleum sulfonate surfactant, and relates to the technical field of separation equipment. The device comprises a tank body, a filter disc is fixedly installed in the tank body, an inner rotating cylinder is rotatably installed in the tank body, the inner rotating cylinder is inserted in the center of the filter disc in a penetrating mode, multiple sets of outer scraping rods are arranged on the outer side of the inner rotating cylinder, rubber scraping pieces are arranged at the bottoms of the outer scraping rods, and a lifting sleeve is connected to the outer side of the inner rotating cylinder in a sleeving mode; and two sets of material blocking brushes are fixedly installed on the outer side of the lifting sleeve, and a slag discharging pipe is rotationally installed at the bottom of the inner rotating cylinder. Through clockwise slow rotation of multiple groups of inclined outer scraping rods, a mahogany petroleum sulfonate surfactant can be fully scraped to any position of a filter disc, filtration resources are not wasted, the mahogany petroleum sulfonate surfactant can be slightly stirred, bubbles in the mahogany petroleum sulfonate surfactant are eliminated, and the filtration efficiency of the mahogany petroleum sulfonate surfactant is improved. The filtering and purifying efficiency can be greatly improved, and the production requirements are met.

Description

Technical Field

[0001] The invention relates to the technical field of separation equipment, and in particular to a separation device for compounding and purifying a petroleum sulfonate surfactant. Background Art

[0002] Petroleum sulfonate is a high-quality surfactant, mainly used for oil displacement during the third recovery period of oil fields. Petroleum sulfonate is a surfactant, which is compounded with surfactant additives to reduce the oil-water interfacial tension and better improve the oil washing efficiency.

[0003] During the compounding process of petroleum sulfonate surfactants, some insoluble particle precipitation or impurities will be produced. The impurities may affect the functions of the surfactant, such as foaming, wettability and emulsification. Therefore, during the compounding process, it is also necessary to remove the particle precipitation and impurities through filtration and purification. Since the petroleum sulfonate surfactant itself has a small surface tension and is prone to bubble generation, the filtration speed is slow. The filtration surface of existing equipment is affected by the liquid intake. A larger filtration surface usually has a higher flow capacity. The filtration flow demand of petroleum sulfonate surfactants is not large. Using too large a filtration surface will lead to waste of resources. At the same time, when the filter medium is blocked, the filter medium needs to be removed and cleaned, which affects the purification efficiency. Summary of the invention

[0004] The purpose of the present invention is to solve the above problems and provide a separation device for compounding and purifying a petroleum sulfonate surfactant.

[0005] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0006] A separation device for compounding and purifying a petroleum sulfonate surfactant comprises a tank body, a liquid inlet is arranged on the top of the tank body, a liquid discharge port is arranged on the bottom of the tank body, a filter disc is fixedly installed inside the tank body, an inner drum is rotatably installed inside the tank body, the inner drum penetrates and is inserted in the center of the filter disc, a plurality of groups of outer scraping rods are arranged on the outer side of the inner drum, the outer scraping rods are tilted in the counterclockwise direction, a passing distance is arranged between the outer scraping rods and the filter disc, a rubber scraper is arranged at the bottom of the outer scraper, and the bottom end of the rubber scraper is tilted in the counterclockwise direction;

[0007] The outer side of the inner drum is provided with a plurality of slag discharge ports, which are arranged corresponding to the outer scraper rods, and can be opened and closed. The slag discharge ports are located at the angle between the outer scraper rod and the inner drum. The outer side of the inner drum is sleeved with a lifting sleeve, and two groups of material blocking brushes are fixedly installed on the outer side of the lifting sleeve. The material blocking brushes are inclined in a clockwise direction. A lifting cylinder is fixedly installed on the top of the tank body, and the telescopic end of the lifting cylinder is fixedly connected to the lifting sleeve;

[0008] A slag discharge pipe is rotatably mounted on the bottom of the inner drum, and the slag discharge pipe penetrates through and is fixedly welded to the tank body.

[0009] Furthermore, the tank body consists of a bottom tank and a top tank, the bottom tank and the top tank are fixedly connected by a flange, the drain port is arranged at the bottom of the bottom tank, the liquid inlet is arranged at the top of the top tank, the lifting cylinder is fixedly installed on the top of the top tank, and the slag discharge pipe passes through and is fixedly welded to the bottom tank.

[0010] Furthermore, the outer side of the bottom tank is provided with supporting feet, and the bottom tank is designed to be conical.

[0011] Furthermore, a forward and reverse motor is fixedly installed on the top of the top tank, a driving wheel is fixedly installed on the output end of the forward and reverse motor, and a driven wheel is fixedly installed on the top of the inner drum, and the driven wheel is meshed with the driving wheel.

[0012] Furthermore, the inner wall of the inner drum is provided with an inner baffle plate, which is arranged on both sides of the slag discharge port, a slag door is slidably connected to the inside of the slag discharge port, a nut barrel is fixedly installed on the inner side of the slag door, a limit stopper rod is arranged on the outer side of the nut barrel, and the length of the limit stopper rod is greater than the width of the slag discharge port, a bracket is provided on the inner top of the inner drum, a transmission screw is rotatably installed inside the bracket, the nut barrel is sleeved on the transmission screw and is threadedly connected to the transmission screw, and a driven bevel gear is fixedly installed on the end of the transmission screw away from the nut barrel;

[0013] A cross brace is welded inside the slag discharge pipe, a support shaft is fixedly installed on the top of the cross brace, a driving bevel gear is rotatably installed on the top of the support shaft, the driving bevel gear is meshed with multiple sets of driven bevel gears at the same time, the inner wall of the driving bevel gear is provided with a ring with multiple sets of shifting grooves, an elastic shifting rod is fixedly installed on the outer side of the support shaft, and the elastic shifting rod is inserted in the shifting groove.

[0014] Furthermore, the inner bottom of the slag discharge port is designed to be inclined downward.

[0015] Furthermore, the bristle length of the material blocking brush is greater than the vertical distance from the top of the outer scraper rod to the top of the filter plate.

[0016] Furthermore, the connection portion between the slag discharge pipe and the inner drum is designed to be funnel-shaped.

[0017] Furthermore, the inner top of the slag discharge port is flush with the top of the outer scraper rod.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. The present invention uses multiple groups of inclined outer scraping rods to slowly rotate clockwise, which can not only fully scrape the petroleum sulfonate surfactant to any position of the filter disc without wasting filtering resources, but also slightly stir the petroleum sulfonate surfactant to eliminate bubbles inside the petroleum sulfonate surfactant, which can greatly improve the filtration and purification efficiency and meet production needs.

[0020] 2. The present invention uses multiple groups of inclined outer scraping rods to rotate counterclockwise. The outer scraping rods use rubber scrapers to clean the surface of the filter disc, and then use the setting of the blocking brush to scrape the filter residue on the surface of the filter disc to the residue discharge port. The filter disc can be cleaned quickly without disassembly and cleaning, and the production efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the overall explosion structure of the present invention;

[0023] Figure 3 It is a schematic diagram of the partial explosion structure of the present invention;

[0024] Figure 4 It is a schematic diagram of the inner drum structure of the present invention;

[0025] Figure 5 It is a schematic diagram of the cross-sectional structure of the inner drum of the present invention;

[0026] Figure 6 It is a schematic diagram of the structure of the support shaft and the active bevel gear of the present invention;

[0027] Figure 7 It is a schematic diagram of the top view of the structure of the outer scraper rod and the material blocking brush of the present invention.

[0028] Figure numerals: 1. bottom tank; 11. drain port; 2. top tank; 21. liquid inlet; 22. forward and reverse motor; 23. driving wheel; 24. lifting cylinder; 3. filter; 4. inner drum; 41. driven wheel; 42. slag discharge port; 43. slag door; 44. inner baffle; 45. nut tube; 46. limit stop rod; 47. transmission screw; 48. driven bevel gear; 5. outer scraper rod; 51. rubber scraper; 6. lifting sleeve; 61. material stop brush; 7. slag discharge pipe; 71. cross brace; 72. support shaft; 73. driving bevel gear; 74. elastic lever; 75. lever groove. DETAILED DESCRIPTION

[0029] To make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0030] Embodiment 1, as Figure 1-Figure 7As shown, a separation device for compounding and purifying a petroleum sulfonate surfactant comprises a tank body, a liquid inlet 21 is arranged on the top of the tank body, a liquid discharge port 11 is arranged on the bottom of the tank body, a filter disc 3 is fixedly installed inside the tank body, an inner drum 4 is rotatably installed inside the tank body, the inner drum 4 is inserted through the center of the filter disc 3, a plurality of groups of outer scraping rods 5 are arranged on the outer side of the inner drum 4, four groups are preferably arranged, the outer scraping rods 5 are tilted in the counterclockwise direction, a passing distance is arranged between the outer scraping rods 5 and the filter disc 3, a rubber scraper 51 is arranged at the bottom of the outer scraping rod 5, and the bottom end of the rubber scraper 51 is tilted in the counterclockwise direction;

[0031] The outer side of the inner drum 4 is provided with a plurality of slag discharge ports 42, which are arranged corresponding to the outer scraper rod 5, and can be opened and closed. The slag discharge ports 42 are located at the angle between the outer scraper rod 5 and the inner drum 4. The outer side of the inner drum 4 is sleeved with a lifting sleeve 6, and two groups of material blocking brushes 61 are fixedly installed on the outer side of the lifting sleeve 6. The material blocking brushes 61 are inclined in a clockwise direction. A lifting cylinder 24 is fixedly installed on the top of the tank body, and the telescopic end of the lifting cylinder 24 is fixedly connected to the lifting sleeve 6.

[0032] A slag discharge pipe 7 is rotatably mounted at the bottom of the inner drum 4, and the slag discharge pipe 7 penetrates through and is fixedly welded to the tank body.

[0033] During filtration, the petroleum sulfonate surfactant enters the tank through the liquid inlet 21 and falls on the filter disc 3. At this time, the inner drum 4 is controlled to rotate slowly clockwise, and the inner drum 4 drives the multiple groups of outer scraper rods 5 to rotate. Since the outer scraper rods 5 are designed to be tilted in the counterclockwise direction, when the outer scraper rods 5 rotate clockwise, the liquid will be guided to flow outward. The outer scraper rods 5 can spread the liquid evenly on the filter disc 3 more quickly, which not only wastes filtering resources but also has high filtration efficiency. At the same time, the outer scraper rods 5 drive the rubber scraper blade 51 to rotate. Since the bottom end of the rubber scraper blade 51 is tilted in the counterclockwise direction, the rubber scraper blade 51 can swing when it rotates clockwise, and the bottom of the outer scraper rod 5 can pass the liquid without affecting normal filtration. In addition, the multiple groups of outer scraper rods 5 slightly stir the petroleum sulfonate surfactant, which can accelerate the discharge of bubbles inside it, further improving the filtration effect. The petroleum sulfonate surfactant with the existing flow rate can be used to quickly filter a large area. Compared with the existing equipment, the purification efficiency of the petroleum sulfonate surfactant is greatly improved.

[0034] After the filtration is completed, the lifting cylinder 24 is controlled to operate and the slag discharge port 42 is opened, the lifting cylinder 24 drives the lifting sleeve 6 to descend, and the lifting sleeve 6 drives the blocking brush 61 to descend and press on the filter disc 3. At this time, the inner drum 4 is controlled to rotate counterclockwise, and the inner drum 4 drives multiple groups of outer scraper rods 5 to rotate counterclockwise, and the outer scraper rods 5 drive the rubber scraper 51 to rotate counterclockwise. Since the bottom end of the rubber scraper 51 is inclined in the counterclockwise direction, the rubber scraper 51 will be tightly attached to the filter disc 3 to scrape the precipitated particles or impurities filtered on its surface. At the same time, since the outer scraper rod 5 is designed to be inclined in the counterclockwise direction and the blocking brush 61 is inclined in the clockwise direction, the outer scraper rod 5 and the blocking brush 61 will cross in a V shape, and the outer scraper rod 5 and the blocking brush 61 will cooperate to gather the scraped precipitated particles or impurities to the slag discharge port 4 2 position, discharged through the slag discharge port 42 and the slag discharge pipe 7, the bristles of the overlapping part of the outer scraper rod 5 and the material blocking brush 61 are bent, and the other positions are still in contact with the filter disc 3, and the material guiding is stable. The bristles of the material blocking brush 61 are made of nylon, and the bristles are usually dense and hard. The design is intended to push the precipitated particles or impurities aside instead of letting them enter the inside of the brush head. The hair arrangement makes it easy for the particles to be pushed away when in contact instead of being sucked in or trapped. It should be noted that the scraping relative to the filter disc 3 by the rubber scraper 51 is flexible scraping, and the material blocking brush 61 is stationary relative to the filter disc 3, and only plays a blocking role, so this cleaning method will not damage the filter disc 3. When it is observed that the slag discharge pipe 7 does not discharge precipitated particles or impurities, the equipment can be stopped and the next filtration can be continued, with high production efficiency.

[0035] Embodiment 2, based on the above embodiment, provides a tank structure;

[0036] like Figure 1-Figure 2 As shown, the tank body consists of a bottom tank 1 and a top tank 2, which are fixedly connected by a flange, a drain port 11 is arranged at the bottom of the bottom tank 1, a liquid inlet 21 is arranged at the top of the top tank 2, a lifting cylinder 24 is fixedly installed at the top of the top tank 2, and a slag discharge pipe 7 passes through and is fixedly welded to the bottom tank 1.

[0037] The separate design of the bottom tank 1 and the top tank 2 facilitates equipment assembly and maintenance.

[0038] Furthermore, the outer side of the bottom tank 1 is provided with supporting feet, and the bottom tank 1 is designed to be conical, so the drainage efficiency is high.

[0039] Embodiment three, based on the above embodiment, further includes: a forward and reverse motor 22 is fixedly installed on the top of the top tank 2, a driving wheel 23 is fixedly installed on the output end of the forward and reverse motor 22, and a driven wheel 41 is fixedly installed on the top of the inner drum 4, and the driven wheel 41 is meshed with the driving wheel 23.

[0040] By controlling the forward and reverse motor 22 to rotate forward and reverse, the forward and reverse motor 22 drives the driving wheel 23 to rotate forward and reverse, and the driving wheel 23 drives the inner drum 4 to rotate clockwise or counterclockwise through the driven wheel 41.

[0041] Embodiment 4, based on the above embodiment, provides a slag discharge port 42 opening and closing structure;

[0042] like Figure 4-Figure 6 As shown, the inner wall of the inner drum 4 is provided with an inner baffle plate 44, which is arranged on both sides of the slag discharge port 42. A slag door 43 is slidably connected to the inside of the slag discharge port 42. A nut cylinder 45 is fixedly installed on the inner side of the slag door 43. A limit stopper rod 46 is provided on the outer side of the nut cylinder 45. The length of the limit stopper rod 46 is greater than the width of the slag discharge port 42. A bracket is provided on the inner top of the inner drum 4. A transmission screw 47 is rotatably installed inside the bracket. The nut cylinder 45 is sleeved on the transmission screw 47 and is threadedly connected to the transmission screw 47. A driven bevel gear 48 is fixedly installed on the end of the transmission screw 47 away from the nut cylinder 45.

[0043] A cross brace 71 is welded inside the slag discharge pipe 7, a support shaft 72 is fixedly installed on the top of the cross brace 71, a driving bevel gear 73 is rotatably installed on the top of the support shaft 72, the driving bevel gear 73 is meshed with multiple sets of driven bevel gears 48 at the same time, the inner wall of the driving bevel gear 73 is provided with a ring with multiple sets of shifting grooves 75, and an elastic shifting rod 74 is fixedly installed on the outer side of the support shaft 72, and the elastic shifting rod 74 is inserted in the shifting groove 75.

[0044] After the filtration is completed, the forward and reverse motor 22 is controlled to reverse, and the forward and reverse motor 22 drives the driving wheel 23 to reverse, and the driving wheel 23 drives the inner drum 4 to rotate counterclockwise through the driven wheel 41, and the inner drum 4 drives the driven bevel gear 48 to rotate relative to the driving bevel gear 73, and the driven bevel gear 48 rotates on its own, and the driven bevel gear 48 drives the transmission screw 47 to rotate. Since the slag door 43 slides in the slag discharge port 42 and cannot rotate, the transmission screw 47 drives the slag door 43 to slide inside the inner drum 4 through the nut tube 45. When the slag door 43 slides to the inner baffle plate 44, When the slag discharge port 42 is opened and the slag door 43 still cannot rotate, as the inner drum 4 continues to rotate, the nut cylinder 45 will eventually hit the bracket and cannot move. At this time, the nut cylinder 45 restricts the rotation of the transmission screw 47, and the transmission screw 47 restricts the rotation of the driven bevel gear 48. The driven bevel gear 48 drives the active bevel gear 73 to rotate relative to the support shaft 72. The active bevel gear 73 drives the elastic lever 74 through the slot 75, and the inner drum 4 rotates normally. The elastic lever 74 causes the slag discharge pipe 7 and the filter disc 3 inside the equipment to vibrate, which can improve the slag discharge efficiency.

[0045] After the slag discharge is completed, by controlling the forward and reverse motor 22 to rotate forward, the forward and reverse motor 22 drives the driving wheel 23 to rotate forward, and the driving wheel 23 drives the inner drum 4 to rotate clockwise through the driven wheel 41, and the inner drum 4 drives the driven bevel gear 48 to rotate relative to the driving bevel gear 73, and the driven bevel gear 48 rotates on its own, and the driven bevel gear 48 drives the transmission screw 47 to rotate, and the transmission screw 47 drives the slag door 43 to slide into the slag discharge port 42 through the nut cylinder 45. When the slag discharge port 42 is closed, the limit stop rod 46 presses on the inner baffle plate 44, and the driving bevel gear 73 rotates relative to the support shaft 72 again. The driving bevel gear 73 drives the elastic lever 74 through the shifting groove 75, and the inner drum 4 rotates normally, and the elastic lever 74 causes the slag discharge pipe 7 and the filter disc 3 inside the equipment to vibrate, thereby improving the filtering effect;

[0046] Through the arrangement of this embodiment, there is no need to set an electric control structure in the slag discharge port 42. It is only necessary to control the forward and reverse rotation of the forward and reverse motor 22. The equipment control is simple and the slag discharge and filtering efficiency can be improved.

[0047] Embodiment 5, on the basis of the above embodiment, also includes: the inner bottom of the slag discharge port 42 is tilted downward to facilitate slag discharge, the bristle length of the material-blocking brush 61 is greater than the vertical distance from the top of the outer scraper rod 5 to the top of the filter plate 3, so that the bristles of the overlapping part of the material-blocking brush 61 and the outer scraper rod 5 have enough space to bend, the connecting part of the slag discharge pipe 7 and the inner drum 4 is funnel-shaped to improve the slag discharge efficiency, and the inner top of the slag discharge port 42 is flush with the top of the outer scraper rod 5, so that the precipitated particles or impurities can completely enter the slag discharge port 42.

[0048] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A separation device for compounding and purifying a petroleum sulfonate surfactant, comprising a tank body, characterized in that: The top of the tank body is provided with a liquid inlet (21), the bottom of the tank body is provided with a liquid discharge port (11), a filter disc (3) is fixedly installed inside the tank body, an inner drum (4) is rotatably installed inside the tank body, the inner drum (4) is inserted through the center of the filter disc (3), a plurality of groups of outer scraping rods (5) are provided on the outer side of the inner drum (4), the outer scraping rods (5) are tilted in the counterclockwise direction, a passing distance is provided between the outer scraping rods (5) and the filter disc (3), a rubber scraper (51) is provided at the bottom of the outer scraper rod (5), and the bottom end of the rubber scraper (51) is tilted in the counterclockwise direction; The outer side of the inner drum (4) is provided with a plurality of slag discharge ports (42), the slag discharge ports (42) are arranged corresponding to the outer scraper rod (5), the slag discharge ports (42) can be opened and closed, and the slag discharge ports (42) are located at the angle between the outer scraper rod (5) and the inner drum (4). The outer side of the inner drum (4) is sleeved with a lifting sleeve (6), and the outer side of the lifting sleeve (6) is fixedly installed with two groups of material blocking brushes (61), and the material blocking brushes (61) are inclined in a clockwise direction. A lifting cylinder (24) is fixedly installed on the top of the tank body, and the telescopic end of the lifting cylinder (24) is fixedly connected to the lifting sleeve (6); A slag discharge pipe (7) is rotatably mounted on the bottom of the inner drum (4), and the slag discharge pipe (7) penetrates through and is fixedly welded to the tank body.

2. A separation device for compounding and purifying a petroleum sulfonate surfactant according to claim 1, characterized in that: The tank body is composed of a bottom tank (1) and a top tank (2), the bottom tank (1) and the top tank (2) are fixedly connected via a flange, a liquid discharge port (11) is arranged at the bottom of the bottom tank (1), a liquid inlet (21) is arranged at the top of the top tank (2), a lifting cylinder (24) is fixedly installed at the top of the top tank (2), and a slag discharge pipe (7) passes through and is fixedly welded to the bottom tank (1).

3. A separation device for compounding and purifying a petroleum sulfonate surfactant according to claim 2, characterized in that: The outer side of the bottom tank (1) is provided with supporting feet, and the bottom tank (1) is designed to be conical.

4. A separation device for compounding and purifying a petroleum sulfonate surfactant according to claim 3, characterized in that: A forward and reverse motor (22) is fixedly mounted on the top of the top tank (2), a driving wheel (23) is fixedly mounted on the output end of the forward and reverse motor (22), and a driven wheel (41) is fixedly mounted on the top of the inner drum (4), and the driven wheel (41) is meshed with the driving wheel (23).

5. A separation device for compounding and purifying a petroleum sulfonate surfactant according to claim 1, characterized in that: The inner wall of the inner rotating cylinder (4) is provided with an inner baffle plate (44), which is arranged on both sides of the slag discharge port (42). A slag door (43) is slidably connected to the inside of the slag discharge port (42). A nut cylinder (45) is fixedly installed on the inner side of the slag door (43). A limit stop rod (46) is provided on the outer side of the nut cylinder (45). The length of the limit stop rod (46) is greater than the width of the slag discharge port (42). A bracket is provided on the inner top of the inner rotating cylinder (4). A transmission screw (47) is rotatably installed inside the bracket. The nut cylinder (45) is sleeved on the transmission screw (47) and is threadedly connected to the transmission screw (47). A driven bevel gear (48) is fixedly installed on the end of the transmission screw (47) away from the nut cylinder (45). A cross brace (71) is welded inside the slag discharge pipe (7), a support shaft (72) is fixedly mounted on the top of the cross brace (71), a driving bevel gear (73) is rotatably mounted on the top of the support shaft (72), the driving bevel gear (73) is meshed with multiple groups of driven bevel gears (48) at the same time, an annular shape with multiple groups of shifting grooves (75) is formed on the inner wall of the driving bevel gear (73), an elastic shifting rod (74) is fixedly mounted on the outer side of the support shaft (72), and the elastic shifting rod (74) is inserted into the shifting groove (75).

6. A separation device for compounding and purifying a petroleum sulfonate surfactant according to claim 1, characterized in that: The inner bottom of the slag discharge port (42) is designed to be inclined downward.

7. A separation device for compounding and purifying a petroleum sulfonate surfactant according to claim 1, characterized in that: The bristle length of the material blocking brush (61) is greater than the vertical distance from the top of the outer scraper rod (5) to the top of the filter plate (3).

8. The separation device for compounding and purifying a petroleum sulfonate surfactant according to claim 1, characterized in that: The connection portion between the slag discharge pipe (7) and the inner drum (4) is designed to be funnel-shaped.

9. A separation device for compounding and purifying a petroleum sulfonate surfactant according to claim 1, characterized in that: The inner top of the slag discharge port (42) is flush with the top of the outer scraper rod (5).

Images