Solid-liquid filtering and separating device for grease production and processing
By designing a solid-liquid filtration and separation device including cylinder, pipe plate, filter rod, filter cloth, feed pipe, output pipeline, tank body, oil discharge pipeline, gas input pipeline and slag discharge components, the problem of complex pipeline layout in the pulse filter and lack of auxiliary slag discharge is solved, efficient oil filtration and separation is achieved, and equipment cost and clogging risks are reduced.
Patent Information
- Application Number
- CN202422174079.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-04
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-09-04
AI Technical Summary
The pulse filter oil and liquid oil discharge pipe and high-pressure gas input pipe in the prior art are independently arranged, resulting in complex pipeline layout, large space and high equipment costs; and the lack of a structure for auxiliary slag discharge, resulting in the filter cake falling off and causing the slag discharge pipe to be blocked.
A solid-liquid filtering and separation device is designed including a cylinder body, a tube plate, a filter rod, a filter cloth, a feed pipe, an output pipe, a tank body, an oil discharge pipe, a gas input pipe and a slag discharge assembly. The device is monitored and controlled in real time through high-level sensors, low-level sensors and pressure gauges, and cleans the pipe walls through the servo motor drives the shaft to drive the scraper to ensure smooth pipes.
It realizes efficient filtration and separation of oil clean liquid, reduces the equipment space and cost, avoids blockage of slag discharge pipe caused by filter cake falling off, and improves production efficiency and product quality.
Smart Images
Figure CN222956006U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of oil production and processing equipment, and particularly relates to a solid-liquid filtration and separation device for oil production and processing. Background Technique
[0002] Oils often contain suspended particles, impurities, color and odor and other undesirable substances, which have a negative impact on the quality of the oil. Filter aids (such as decolorizing clay, diatomaceous earth, etc.) can adsorb and remove these undesirable substances, thereby improving the purity and quality of the oil. Moreover, during the filtration process, the filter aid can accelerate the filtration speed and improve the filtration efficiency. The use of filter aids can also reduce the process complexity in the production process and lower the production cost. In the prior art, generally, the solid-containing miscellaneous oil is first fully mixed with the filter aid, and then the mixture of the solid-containing miscellaneous oil and the filter aid is filtered and separated by a filtration device such as a pulse filter.
[0003] In the pulse filter in the prior art, the filtered clear oil is generally discharged through an oil discharge pipe, while the high-pressure gas used for cleaning the filter cloth is transported into the filter rods and the filter cloth through a high-pressure gas pipe. Its pipeline layout is more, occupying a larger space and having a higher equipment cost. In addition, the pulse filter in the prior art generally does not have a structure for assisting the discharge of slag. When the filter cloth is cleaned by pulse jetting high-pressure gas for backwashing, some large filter cakes in blocks or sheets will also fall off the filter cloth. The large filter cakes have a large volume, and when discharging the slag, it is easy to cause the slag discharge pipe to be blocked. Summary of the Utility Model
[0004] The purpose of the present utility model is to provide a solid-liquid filtration and separation device for oil production and processing in order to solve the above problems, aiming to solve the technical problems in the prior art that the oil discharge pipe and the high-pressure gas input pipe of the pulse filter are both independently arranged, with more pipeline layouts, occupying a larger space and having a higher equipment cost; and the pulse filter generally does not have a structure for assisting the discharge of slag, and the large filter cakes falling off the filter cloth are easy to cause the slag discharge pipe to be blocked.
[0005] The present utility model realizes the above purpose through the following technical solutions:
[0006] A solid-liquid filtration and separation device for oil production and processing, comprising a cylinder body, a tube plate arranged above the interior, a plurality of filter rods detachably connected to the tube plate, a filter cloth detachably connected to the outside of the filter rods, a feed pipe opened at the lower part of the cylinder body, an output pipe connected to the output end of the tube plate, a tank body connected to the output end of the output pipe, a valve arranged between the output pipe and the tank body, an oil discharge pipe opened at the bottom of the tank body, a gas input pipe opened at the top of the tank body, and a slag discharge assembly arranged at the bottom of the cylinder body.
[0007] As a further optimized solution of the utility model, a high-level sensor and a low-level sensor are arranged inside the cylinder body, and an overflow port is connected. A pressure gauge for monitoring the filtration resistance of the filter cloth is arranged on the cylinder body, and a support seat is arranged on the outer wall of the cylinder body.
[0008] As a further optimized solution of the utility model, the slag discharging assembly includes a slag discharging pipeline opened at the bottom of the cylinder body and a slag discharging valve arranged on the slag discharging pipeline.
[0009] As a further optimized solution of the utility model, the slag discharging assembly further includes a protective box arranged inside the cylinder body, a fixed seat arranged inside the slag discharging pipeline, a first rotating shaft horizontally rotatably connected to the protective box and extending into the feeding pipeline, a second rotating shaft vertically rotatably connected to the protective box and the fixed seat, a second scraping plate arranged on the first rotating shaft for cleaning the pipe wall of the feeding pipeline, a mounting frame arranged on the second rotating shaft, a first scraping plate vertically slidably connected to the mounting frame and used for cleaning the pipe wall of the slag discharging pipeline, and a power member for driving the first rotating shaft and the second rotating shaft to rotate.
[0010] As a further optimized solution of the utility model, the power member includes a servo motor and two bevel gears respectively arranged on the first rotating shaft and the second rotating shaft and meshing with each other. The output end of the servo motor is connected to one end of the first rotating shaft or the second rotating shaft, and the bevel gears are both located inside the protective box.
[0011] As a further optimized solution of the utility model, a plurality of moving grooves are vertically opened on the mounting frame. A sliding block is arranged on the first scraping plate, and the sliding block is vertically slidably connected to the moving groove. Springs are respectively arranged between the upper and lower end faces of the sliding block and the upper and lower end faces of the moving groove. An uneven cam for pushing the first scraping plate to move downward is arranged above the first scraping plate on the first rotating shaft, and the concave and convex positions on the outer wall surface of the uneven cam in contact with the first scraping plate are alternately arranged.
[0012] The beneficial effects of the utility model are as follows:
[0013] 1) The utility model intercepts solid impurities such as filter aids through the filter cloth. The clear oil liquid is transported to the inside of the tank body through the filter rods, the tube plate, and the output pipeline, and then discharged through the oil discharging pipeline. The filtration resistance of the filter cloth is detected in real time through the pressure gauge. When the filtration resistance reaches the target value range, pulse jet high-pressure gas is used to blow and clean the filter cloth. The high-pressure gas is transported through the gas input pipeline, the tank body, the output pipeline, and the tube plate to blow towards each filter cloth. The transportation path of the clear oil liquid and the high-pressure gas is the same set. When the high-pressure gas enters the inside of the tank body, all the clear oil liquid inside the tank body can be emptied through the action of the high-pressure gas, so as to better recover the clear oil liquid;
[0014] 2) The utility model drives the first rotating shaft, the second rotating shaft and the second scraper to rotate together through the operation of the servo motor. The rotation of the second scraper can scrape off the solid impurities adhering to the inner wall of the feeding pipeline to prevent the feeding pipeline from being blocked. The rotation of the second rotating shaft drives the first scraper to rotate. The rotation of the first scraper can scrape off the solid impurities adhering to the inner wall of the slag discharging pipeline to prevent the slag discharging pipeline and the slag discharging valve from being blocked, and can also stir and disperse the larger filter cakes into small pieces to facilitate their passing through the slag discharging valve during transportation and reduce the occurrence of blockage.
[0015] 3) When the convex position of the cam contacts the top of the first scraper during the rotation of the cam of the utility model, it will press the first scraper to move downward relative to the mounting frame. When the concave position of the cam contacts the top of the first scraper, the first scraper is not pressed by the cam, and the first scraper will move upward under the elastic force of the spring. The first scraper moves up and down reciprocally. First, it can shake off the solid impurities adhering to the first scraper. Second, it can enhance the dispersion effect of dispersing the larger filter cakes. Description of the Drawings
[0016] Figure 1 is the overall structural schematic diagram of Embodiment 1 of the utility model.
[0017] Figure 2 is the overall structural schematic diagram of the anti-blocking and cleaning assembly of Embodiment 2 of the utility model.
[0018] Figure 3 is the top view of the mounting frame and the first scraper of Embodiment 2 of the utility model.
[0019] Figure 4 is the structural schematic diagram of the second scraper of Embodiment 2 of the utility model.
[0020] Figure 5 is the side view of the cam of Embodiment 2 of the utility model.
[0021] In the figure: 1, cylinder body; 2, tube sheet; 3, filter rod; 4, filter cloth; 5, feeding pipeline; 6, output pipeline; 7, valve; 8, tank body; 9, oil discharging pipeline; 10, gas input pipeline; 11, pressure gauge; 12, overflow port; 13, slag discharging pipeline; 14, slag discharging valve; 15, support seat; 16, protection box; 17, first rotating shaft; 18, second rotating shaft; 19, bevel gear; 20, servo motor; 21, fixed seat; 22, mounting frame; 23, first scraper; 24, movable groove; 25, slider; 26, spring; 27, second scraper; 28, cam. Detailed Embodiment
[0022] The present application will be further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the protection scope of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.
[0023] Embodiment 1
[0024] As Figure 1 shown, a solid-liquid filtration and separation device for oil and fat production and processing includes a cylinder body 1, a tube sheet 2 arranged above the interior, a number of filter rods 3 detachably connected to the tube sheet 2, a filter cloth 4 detachably connected to the outside of the filter rods 3, a feed pipeline 5 opened at the lower part of the cylinder body 1, an output pipeline 6 connected to the output end of the tube sheet 2, a tank body 8 connected to the output end of the output pipeline 6, a valve 7 arranged between the output pipeline 6 and the tank body 8, an oil discharge pipeline 9 opened at the bottom of the tank body 8, a gas input pipeline 10 opened at the top of the tank body 8, and a slag discharge assembly arranged at the bottom of the cylinder body 1.
[0025] It should be noted that in this embodiment, the valve 7 is a pneumatic ball valve or a pneumatic butterfly valve.
[0026] It should be noted that in this embodiment, the bottom of the oil discharge pipeline 9 is connected to a delivery pump. Through this delivery pump, a mixture of solid-containing miscellaneous oil and filter aid can be pumped into the interior of the cylinder body 1 through the feed pipeline 5, and after filtration, it can be transported to the interior of the tank body 8 through the output pipeline 6, and then transported out through the oil discharge pipeline 9;
[0027] The top of the gas input pipeline 10 is connected to a high-pressure gas storage tank. When it is necessary to perform pulse jet high-pressure gas backwashing and cleaning on the filter cloth 4, the gas in the high-pressure gas storage tank is transported into the interior of the tank body 8 through the gas input pipeline 10. First, the oil liquid in the tank body 8 can be emptied. Secondly, it can be transported to each filter rod 3 and filter cloth 4 through the output pipeline 6 and the tube sheet 2 in sequence, so as to inflate the filter cloth 4, and make the larger filter cakes intercepted and filtered by the filter cloth 4 and the solid impurities in the gaps of the filter cloth 4 fall off and drop into the interior of the cylinder body 1.
[0028] Preferably, a high liquid level sensor and a low liquid level sensor are arranged inside the cylinder body 1 and are connected to an overflow port 12. A pressure gauge 11 for monitoring the filtration resistance of the filter cloth 4 is arranged on the cylinder body 1, and a support seat 15 is arranged on the outer wall of the cylinder body 1.
[0029] The high-level sensor and low-level sensor are set to facilitate the monitoring of the liquid level inside the cylinder body 1, so as to adjust the conveying speed of the conveying pump. The filtration resistance of the filter cloth 4 is detected in real time through the pressure gauge 11. When the filtration resistance reaches the target value range, the mixture of solid-containing miscellaneous oil and filter aid is no longer pumped into the cylinder body 1, and the conveying pump is turned off, so that the clear oil liquid no longer passes through the oil discharge pipeline 9. Then, the filter cloth 4 is cleaned by pulsed jet of high-pressure gas.
[0030] Preferably, the slag discharge assembly includes a slag discharge pipeline 13 opened at the bottom of the cylinder body 1 and a slag discharge valve 14 provided on the slag discharge pipeline 13. After the filter cloth 4 is cleaned by pulsed jet of high-pressure gas, the solid impurities on the filter cloth 4 will fall to the bottom of the cylinder body 1 and then be transported out of the cylinder body 1 through the slag discharge valve 14.
[0031] In the process of oil production and processing, in order to adsorb impurities in the oil, filter aids such as decolorizing clay and diatomaceous earth are generally pre-mixed with the oil, and then the oil liquid and solid impurities such as filter aids are filtered and separated through the solid-liquid filtration and separation device described above. Its working principle is that the mixture of solid-containing miscellaneous oil and filter aid is transported to the inside of the cylinder body 1 through the feed pipeline 5, and the solid impurities such as filter aids are filtered and intercepted by the filter cloth 4, and the clear oil liquid passes through the filter cloth 4, the tube sheet 2, the output pipeline 6, and the valve 7 and is transported to the inside of the tank body 8, and then discharged through the oil discharge pipeline 9.
[0032] Embodiment 2
[0033] As Figures 2 - 5 shown, a solid-liquid filtration and separation device for oil production and processing. On the basis of Embodiment 1, in this embodiment, the slag discharge assembly further includes a protective box 16 provided inside the cylinder body 1, a fixed seat 21 provided inside the slag discharge pipeline 13, a rotating shaft 17 horizontally rotatably connected to the protective box 16 and extending into the feed pipeline 5, a rotating shaft 18 vertically rotatably connected to the protective box 16 and the fixed seat 21, a scraping plate 27 provided on the rotating shaft 17 for cleaning the pipe wall of the feed pipeline 5, a mounting frame 22 provided on the rotating shaft 18, a scraping plate 23 slidably connected to the mounting frame 22 up and down and used for cleaning the pipe wall of the slag discharge pipeline 13, and a power member for driving the rotation of the rotating shaft 17 and the rotating shaft 18.
[0034] Preferably, the power member includes a servo motor 20 and two bevel gears 19 respectively provided on the rotating shaft 17 and the rotating shaft 18 and meshing with each other. The output end of the servo motor 20 is connected to one end of the rotating shaft 17 or the rotating shaft 18, and the bevel gears 19 are both located inside the protective box 16; preferably, the servo motor 20 is provided on the outer wall of the cylinder body 1, and the output end of the servo motor 20 is connected to one end of the rotating shaft 17.
[0035] Preferably, a plurality of movable slots 24 are vertically formed in the mounting frame 22. A slider 25 is provided on the first scraper 23. The slider 25 is vertically and slidably connected to the movable slot 24. Springs 26 are respectively provided between the upper and lower end faces of the slider 25 and the upper and lower end faces of the movable slot 24. An uneven cam 28 for pushing the first scraper 23 downward is provided above the first scraper 23 on the first rotating shaft 17. The concave and convex positions on the outer wall surface of the uneven cam 28 in contact with the first scraper 23 are alternately arranged.
[0036] After the filter cloth 4 is back blown and cleaned by pulsed high-pressure gas, a large amount of solid impurities will fall to the bottom of the cylinder body 1. In order to prevent the solid impurities from blocking the feed pipe 5 and the slag discharge pipe 13, the servo motor 20 is started. The operation of the servo motor 20 will drive the first rotating shaft 17 and the second scraper 27 to rotate together. The rotation of the second scraper 27 can scrape off the solid impurities adhering to the inner wall of the feed pipe 5 to prevent the feed pipe 5 from being blocked. The rotation of the first rotating shaft 17 will drive the second rotating shaft 18 to rotate through the bevel gear 19. The rotation of the second rotating shaft 18 will drive the mounting frame 22 and the first scraper 23 to rotate together. The rotation of the first scraper 23 can scrape off the solid impurities adhering to the inner wall of the slag discharge pipe 13 to prevent the slag discharge pipe 13 from being blocked, and can also stir and disperse the larger filter cakes into small pieces to facilitate their passing through the slag discharge valve 14 during transportation.
[0037] In addition, when the first rotating shaft 17 rotates, the uneven cam 28 will also rotate. When the convex position of the uneven cam 28 contacts the top of the first scraper 23, it will press the first scraper 23 to move downward relative to the mounting frame 22. When the concave position of the uneven cam 28 is located at the top of the first scraper 23, the first scraper 23 is not pressed by the uneven cam 28, and the first scraper 23 will move upward under the elastic force of the spring 26. The first scraper 23 moves up and down reciprocally. One is to shake off the solid impurities adhering to the first scraper 23, and the other is to enhance the dispersion effect of dispersing the larger filter cakes.
[0038] The above embodiments only represent several implementation manners of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.
Claims
1. A solid-liquid filtration and separation device for oil production and processing, characterized in that: The invention comprises a cylinder (1), a tube sheet (2) arranged at the upper part of the cylinder, a plurality of filter rods (3) detachably connected to the tube sheet (2), a filter cloth (4) detachably connected to the outside of the filter rod (3), a feed pipe (5) opened below the cylinder (1), an output pipe (6) connected to the output end of the tube sheet (2), a tank (8) connected to the output end of the output pipe (6), a valve (7) arranged between the output pipe (6) and the tank (8), an oil discharge pipe (9) opened at the bottom of the tank (8), a gas input pipe (10) opened at the top of the tank (8), and a slag discharge assembly arranged at the bottom of the cylinder (1).
2. The solid-liquid filtration and separation device for oil production and processing according to claim 1, characterized in that: A high liquid level sensor and a low liquid level sensor are provided inside the cylinder (1) and are connected to an overflow port (12); a pressure gauge (11) for monitoring the filtering resistance of the filter cloth (4) is provided on the cylinder (1); and a support seat (15) is provided on the outer wall of the cylinder (1).
3. The solid-liquid filtration and separation device for oil production and processing according to claim 1, characterized in that: The slag discharge assembly comprises a slag discharge pipe (13) opened at the bottom of the cylinder (1) and a slag discharge valve (14) arranged on the slag discharge pipe (13).
4. The solid-liquid filtration and separation device for oil production and processing according to claim 1, characterized in that: The slag discharge assembly further comprises a protection box (16) arranged inside the cylinder (1), a fixed seat (21) arranged inside the slag discharge pipe (13), a rotating shaft (17) horizontally rotatably connected to the protection box (16) and extending to the inside of the feed pipe (5), a rotating shaft (18) vertically rotatably connected to the protection box (16) and the fixed seat (21), a scraper (27) arranged on the rotating shaft (17) for cleaning the pipe wall of the feed pipe (5), a mounting frame (22) arranged on the rotating shaft (18), a scraper (23) slidably connected to the mounting frame (22) up and down and used to clean the pipe wall of the slag discharge pipe (13), and a power member for driving the rotating shaft (17) and the rotating shaft (18) to rotate.
5. The solid-liquid filtration and separation device for oil production and processing according to claim 4, characterized in that: The power component comprises a servo motor (20), two bevel gears (19) respectively arranged on the first rotating shaft (17) and the second rotating shaft (18) and meshing with each other, the output end of the servo motor (20) is connected to one end of the first rotating shaft (17) or the second rotating shaft (18), and the bevel gears (19) are all located inside the protective box (16).
6. The solid-liquid filtration and separation device for oil production and processing according to claim 4, characterized in that: A plurality of movable grooves (24) are vertically provided on the mounting frame (22), a slider (25) is provided on the scraper plate (23), the slider (25) is vertically slidably connected to the movable groove (24), springs (26) are respectively provided between the upper and lower end surfaces of the slider (25) and the upper and lower end surfaces of the movable groove (24), a concave cam (28) for pushing the scraper plate (23) downward is provided on the rotating shaft (17) above the scraper plate (23), and the concave position and the convex position of the outer wall surface where the concave cam (28) contacts the scraper plate (23) are alternately arranged.