Solid-liquid separation device for edible oil production

Abstract

The utility model relates to the technical field of edible oil production, in particular to a solid-liquid separation device for edible oil production, and aims to solve the technical problems that in the prior art, different centrifugal devices are adopted for centrifuging edible oil at different stages so as to meet the requirements for the rotating speed and the filter hole diameter, and the running cost of multiple devices is high. Comprising a feeding cylinder, a feeding pipe, filter cartridges, a fixing cylinder, a discharging cylinder, a guide cylinder, an oil discharging port, a support, a gear ring, a gear, a gear shaft, a slag discharging port, hydraulic cylinders and partition plates, after raw materials are injected, the hydraulic cylinders on the two sides are controlled to stretch out and draw back to adjust the positions of the partition plates, the two partition plates convey the raw materials into the corresponding filter cartridges and close the filter cartridges, the filter cartridges rotate, edible oil is discharged through filter holes, and centrifugation is completed. And filter residues are pushed by the partition plate to be discharged through the residue discharging opening, the filter cartridge is cleaned while discharging is conducted, and blockage caused by residues in the filter cartridge is prevented, so that one device has a multi-stage centrifugal area, the cost is saved, and automatic residue discharging is achieved at the same time.

Description

Technical Field

[0001] This utility model relates to the field of edible oil production technology, specifically to a solid-liquid separation device for edible oil production. Background Technology

[0002] Edible oil is an indispensable food in people's daily lives, and its production process involves multiple stages, among which solid-liquid separation is a key step. With the improvement of people's living standards and the increasing demands for food safety and quality, the edible oil production industry faces challenges in improving production efficiency, enhancing product quality, and reducing production costs. In edible oil production, whether the crude oil is obtained through oilseed pressing or solvent extraction, it contains various solid impurities, such as oilseed residue, cake crumbs, mud, and gum. If these impurities are not separated and removed in a timely and effective manner, they will affect the appearance, taste, flavor, and shelf life of the edible oil, and may even pose potential health hazards.

[0003] Current technology uses centrifugation for solid-liquid separation. When the solid-liquid mixture enters a high-speed rotating filter cartridge, the denser solid particles are thrown to the outer periphery of the cartridge under centrifugal force. The filter cartridge is usually made of a filter screen material with a certain porosity. The liquid can flow out of the cartridge through the pores of the filter screen, while the solid particles are intercepted by the filter screen and remain inside the cartridge, thus achieving solid-liquid separation.

[0004] Edible oils at different stages require different centrifugal speeds and filter pore sizes. Freshly pressed crude oil contains more solid impurities, such as cake residue and sand. These impurity particles are relatively large, so a lower speed, such as 1000-2000 rpm, can be used with a filter screen with relatively large pores, such as 0.1-0.5 mm. Phospholipids and waxes in edible oils are in a colloidal or semi-solid state, with smaller particles and a relatively tight bond to the oil. For the degumming and dewaxing process, a higher speed, generally 3000-6000 rpm, is required, along with a filter screen with smaller pores, such as 0.05-0.1 mm, to effectively separate these impurities from the oil and improve the transparency and low-temperature stability of the edible oil.

[0005] Existing technologies use different centrifuges for different stages of edible oil processing to meet the requirements of rotation speed and filter pore size, resulting in high operating costs for multiple devices. Utility Model Content

[0006] This invention addresses the technical problem of high operating costs associated with using different centrifuges for different stages of edible oil production to meet the requirements of rotation speed and filter pore size, and provides a solid-liquid separation device for edible oil production.

[0007] To achieve the above objectives, the system includes: a filter cylinder comprising a first filter cylinder and a second filter cylinder with identical structures; a feed cylinder, a first filter cylinder, a fixed cylinder, a second filter cylinder, and a discharge cylinder arranged horizontally and concentrically, and connected end-to-end in a rotatable manner; the outer ends of the feed cylinder and the discharge cylinder are closed; the filter hole diameter of the filter cylinders decreases and increases sequentially along the discharge direction; the inner diameters of the feed cylinder, filter cylinder, fixed cylinder, and discharge cylinder are equal, and a guide cylinder is concentrically fastened to their outer surfaces; the guide cylinder is connected to the outer surfaces of the feed cylinder and the discharge cylinder; and the lower end of the guide cylinder is open. It is equipped with an oil drain port. The fixed cylinder is connected to the inner wall of the guide cylinder. The feed cylinder and the discharge cylinder are both connected to the bracket. Corresponding toothed rings are connected to the outer peripheral walls of the two filter cylinders. The toothed rings are meshed with gears. The gears are connected to the power through the gear shaft. The gear shaft is rotatably connected to the guide cylinder. The upper part of the feed cylinder is connected to the feed pipe. The lower outer end of the discharge cylinder is provided with a slag discharge port. The outer ends of the feed cylinder and the discharge cylinder are respectively connected to corresponding hydraulic cylinders. The extension and retraction ends of the hydraulic cylinders are connected to the baffles. The outer diameter of the baffles is equal to the inner diameter of the feed cylinder.

[0008] Preferably, the filter cartridge includes two rotating rings connected by a circumferentially distributed crossbeam. A stainless steel filter screen is connected inside the crossbeam. The stainless steel filter screen is concentric with the feed cylinder and has the same inner diameter. The rotating rings are rotatably connected to the ends of the feed cylinder, the fixed cylinder, and the discharge cylinder. The stainless steel filter screens in the two filter cartridges have different filter hole diameters. A toothed ring is connected to the circumferential surface of the outer rotating ring of each filter cartridge.

[0009] Preferably, the inner end wall of the discharge cylinder is provided with a filter pressure hole, and the diameter of the filter hole is smaller than the diameter of the filter cylinder.

[0010] Preferably, a gas nozzle is connected to the inner wall of the guide tube outside the filter cartridge and the filter pressure hole, and the gas nozzle is connected to the air pump.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] After the raw material is injected, the position of the baffle is adjusted by controlling the extension and retraction of the hydraulic cylinders on both sides, so that the two baffles transport the raw material to the corresponding filter cylinder and seal the filter cylinder. The filter cylinder rotates and the edible oil is discharged through the filter hole, completing the centrifugation. The filter residue is pushed by the baffle and discharged through the slag discharge port. At the same time as the material is discharged, the filter cylinder is cleaned to prevent the residue in the filter cylinder from causing blockage. In this way, a single device can have multiple centrifugation areas, saving costs and realizing the automation of slag discharge.

[0013] Before slag discharge, the material is filtered once by two baffles in conjunction with the filter holes of the discharge cylinder, resulting in better extraction. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0015] Figure 2 This is a schematic cross-sectional view of the structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the present invention. Figure 2 .

[0017] In the diagram: 1. Feed cylinder; 2. Feed pipe; 3. Filter cylinder; 31. Rotary ring; 32. Horizontal frame; 33. Stainless steel filter screen; 4. Fixed cylinder; 5. Discharge cylinder; 6. Guide cylinder; 7. Oil outlet; 8. Support; 9. Gear ring; 10. Gear shaft; 11. Slag outlet; 12. Hydraulic cylinder; 13. Baffle plate; 14. Filter press hole; 15. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] The rotary connection described in this device refers to the axial fixation of the bearing by mounting the bearing on the shaft, with a spring retaining ring groove provided on the shaft or shaft hole, and the rotation achieved by locking the elastic retaining ring in the retaining ring groove; the hinge connection refers to the connection method that allows movement through connecting parts such as hinges, pins, and short shafts.

[0020] The present invention will now be described in detail with reference to the accompanying drawings.

[0021] The following is in conjunction with the appendix Figure 1-3 This embodiment describes a solid-liquid separation device for edible oil production, comprising: a filter cylinder 3, which includes a first filter cylinder and a second filter cylinder with identical structures; a feed cylinder 1, a first filter cylinder, a fixed cylinder 4, a second filter cylinder, and a discharge cylinder 5, which are horizontally concentrically arranged and sequentially rotatably connected end to end; the feed cylinder 1 and the discharge cylinder 5 are closed at their outer ends; the filter hole diameter of the filter cylinder 3 decreases and increases sequentially along the discharge direction; the inner diameters of the feed cylinder 1, the filter cylinder 3, the fixed cylinder 4, and the discharge cylinder 5 are equal, and a guide cylinder 6 is concentrically fastened to their outer surfaces; the guide cylinder 6 is connected to the outer surfaces of the feed cylinder 1 and the discharge cylinder 5; and a section is opened at the lower end of the guide cylinder 6. The oil outlet 7, the fixed cylinder 4 and the inner wall of the guide cylinder 6 are connected. The feed cylinder 1 and the discharge cylinder 5 are both connected to the bracket 8. Corresponding toothed rings 9 are connected to the outer peripheral walls of the two filter cylinders 3 respectively. The toothed rings 9 are meshed with the gears 10. The gears 10 are connected to the power through the gear shaft 11. The gear shaft 11 is rotatably connected to the guide cylinder 6. The upper part of the feed cylinder 1 is connected to the feed pipe 2. The lower outer end of the discharge cylinder 5 is provided with a slag discharge port 12. The outer ends of the feed cylinder 1 and the discharge cylinder 5 are respectively connected to corresponding hydraulic cylinders 13. The extension and retraction ends of the hydraulic cylinders 13 are connected to the partition plate 14. The outer diameter of the partition plate 14 is equal to the inner diameter of the feed cylinder 1.

[0022] After the raw material is injected through the feed pipe 2, the position of the baffle 14 is adjusted by controlling the extension and retraction of the hydraulic cylinders 13 on both sides, so that the two baffles 14 transport the raw material to the first or second filter cylinder and seal it. The power drives the corresponding gear shaft 11 and gear 10 to rotate. The gear 10 drives the corresponding filter cylinder to rotate through the gear ring 9 to start centrifugation. Edible oil is discharged through the filter holes of the filter cylinder 3, and the filter residue is retained in the filter cylinder 3. By controlling the displacement of the baffle 14, the filter residue is pushed out through the slag discharge port 12. At the same time as discharging, the filter cylinder 3 is cleaned to prevent the residue in the filter cylinder 3 from causing blockage. In this way, a single device can have multiple centrifugation areas, saving costs and realizing automated slag discharge. Since the filter hole diameter of the filter cylinder 3 increases sequentially along the discharge direction, when the baffle 14 pushes the raw material through the previous filter cylinder 3, the impurities will not leak through the larger filter holes and affect the filtration quality.

[0023] The filter cartridge 3 includes two rotating rings 31, which are connected by a circumferentially distributed crossbeam 32. A stainless steel filter screen 33 is connected inside the crossbeam 32. The stainless steel filter screen 33 is concentric with the feed cylinder 1 and has the same inner diameter. The rotating rings 31 are rotatably connected to the ends of the feed cylinder 1, the fixed cylinder 4, and the discharge cylinder 5. The filter holes of the stainless steel filter screens 33 in the two filter cartridges 3 are different. A toothed ring 9 is connected to the circumferential surface of the outer rotating ring 31 of each filter cartridge 3.

[0024] The crossbar 32 supports the stainless steel filter screen 33, ensuring the structural stability of the stainless steel filter screen 33 when facing the centrifuge.

[0025] The inner wall of the discharge cylinder 5 is provided with a filter hole 15, the diameter of which is smaller than that of the filter cylinder 3.

[0026] Before slag discharge, the material is filtered once by two baffles 14 in conjunction with the filter holes 15 of the discharge cylinder 5, resulting in better extraction.

[0027] A gas nozzle is connected to the inner wall of the guide tube 6 outside the filter cartridge 3 and the filter pressure hole 15. The gas nozzle is connected to the air pump.

[0028] The air is expelled through the nozzle of the air pump box to clean the filter holes, achieving convenient blockage removal.

[0029] In the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0030] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A solid-liquid separation device for edible oil production, characterized by: The utility model relates to a filter device, including: The filter cartridge (3) includes first filter cartridge and second filter cartridge and the two filter cartridge structures are consistent, the feed cylinder (1), first filter cartridge, fixed cylinder (4), second filter cartridge, discharge cylinder horizontal concentricity is set and the head and tail are connected in proper order rotation, the feed cylinder (1) and discharge cylinder (5) outer end are closed, along the discharge direction filter hole aperture of filter cartridge (3) decreases in size in proper order, the inner diameter of feed cylinder (1), filter cartridge (3), fixed cylinder (4), discharge cylinder (5) is equal and the outer concentricity of guide cylinder (6) is closed, guide cylinder (6) is connected to the outer surface of feed cylinder (1) and discharge cylinder (5), guide cylinder (6) lower end is equipped with oil outlet (7), fixed cylinder (4) is connected with the inner wall of guide cylinder (6), the feed cylinder (1) is connected in the support (8), the outer periphery wall of two filter cartridges (3) is connected with corresponding gear ring (9) respectively, gear ring (9) is engaged with gear (10), gear (10) is connected with power through gear shaft (11), gear shaft (11) is rotatably connected on guide cylinder (6), the upper portion of feed cylinder (1) is connected with feed pipe (2), the lower portion of discharge cylinder (5) is equipped with slag outlet (12) outside end, the outer end of feed cylinder (1) and discharge cylinder (5) is connected with corresponding hydraulic cylinder (13) respectively, the expansion end of hydraulic cylinder (13) is connected with baffle (14), the outer diameter of baffle (14) is equal with the inner diameter of feed cylinder (1).

2. The solid-liquid separation device for edible oil production according to claim 1, characterized in that: The filter cartridge (3) includes two rotating rings (31), and the two rotating rings (31) are connected through circumferentially distributed crossbars (32). The crossbars (32) are connected with stainless steel filter screens (33) inside. The stainless steel filter screens (33) are concentric with the feed cylinder (1) and have equal inner diameters. The rotating rings (31) can be rotatably connected to the end portions of the feed cylinder (1), the fixed cylinder (4), and the discharge cylinder (5). The stainless steel filter screens (33) in the two filter cartridges (3) have different filter hole diameters. The outer rotating rings (31) of each filter cartridge (3) are connected with gear rings (9) on circumferential surfaces.

3. The solid-liquid separation device for edible oil production according to claim 1, characterized in that: The discharge cylinder (5) is provided with filter holes (15) on the inner end cylinder wall. The filter hole diameters are smaller than the filter hole diameters of the filter cartridges (3).

4. The solid-liquid separation device for edible oil production according to claim 3, characterized in that: The guide cylinder (6) is connected with gas nozzles on the inner wall outside the filter cartridges (3) and the filter holes (15). The gas nozzles are connected with gas pumps in communication.

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