Low-temperature efficient demulsification equipment for waste emulsion

Abstract

The utility model discloses waste emulsion low-temperature efficient demulsification equipment which comprises a refrigeration refrigerator, a freezing tank is arranged on the lower portion in the refrigeration refrigerator, the freezing tank is arranged on the front face of the refrigeration refrigerator in a sliding mode, a driving motor is arranged on the top of the refrigeration refrigerator, and a telescopic rotating shaft is arranged at the output end of the driving motor. A plurality of water absorption bags are arranged at the bottom of the turntable, an operation opening for replacing the water absorption bags is formed in one side of the top of the refrigeration refrigerator, and a heat preservation plate is detachably arranged at the operation opening in a sealed mode. According to the utility model, the turntable capable of lifting up and down and rotating is arranged, and the water absorption bag prepared by wrapping the macromolecular water absorption resin with the hydrophilic non-woven fabric is hung, so that the water absorption is carried out on the waste emulsion at the early freezing stage, the low-temperature freezing demulsification efficiency is favorably improved, the freezing volume of the waste emulsion is reduced, and the energy consumption is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of emulsion demulsification, in particular to a low-temperature and high-efficiency demulsification device for waste emulsion. Background Art

[0002] In industrial production and scientific research, emulsions are widely used, the most common of which is metal cutting fluid. Metal cutting fluid needs to be replaced after repeated use, and direct discharge of waste emulsions will seriously harm the water environment. They must be treated or recycled and can only be discharged after meeting national emission standards.

[0003] The main component of emulsion is crude oil or machine oil. To separate oil from water, the boundary membrane of oil droplets must be destroyed first, so that the oil droplets are close to each other and gather into large droplets, which float on the water surface. Commonly used methods include mechanical method, physical method and chemical method.

[0004] The most commonly used mechanical demulsification method is centrifugal separation. The density of water and oil is different. Under the action of centrifugal force, the drainage process is promoted to destroy the emulsion. During the centrifugal demulsification process, the emulsion is heated to reduce the viscosity of the external phase, which can accelerate the drainage process and accelerate the demulsification. Commonly used physical demulsification methods include electrical precipitation, ultrasonic method and filtration method. Chemical demulsification mainly changes the type or interface properties of the emulsion, making it unstable and causing demulsification.

[0005] In addition, freeze-thaw demulsification is also a method that has been used for a long time. Freeze-thaw induced demulsification uses the cyclic changes in the temperature field to cause phase changes in the oil and water phases of the emulsion, resulting in instability in the emulsion system. Currently, the freeze-thaw demulsification method is often used in emulsion foods such as seasonings, and is less used in industry. Utility Model Content

[0006] In view of the above-mentioned problems, the utility model provides a low-temperature and high-efficiency demulsification device for waste emulsion.

[0007] The technical solution of the utility model is:

[0008] A low-temperature and high-efficiency demulsification device for waste emulsion comprises a refrigerating refrigerator, wherein a freezing tank is arranged at the lower part of the refrigerating refrigerator, wherein the freezing tank is slidably installed and placed on the front side of the refrigerating refrigerator, wherein a driving motor is arranged at the top of the refrigerating refrigerator, wherein a telescopic rotating shaft is arranged at the output end of the driving motor, wherein a turntable is arranged at the rear end after the telescopic rotating shaft passes through the top of the refrigerating refrigerator, wherein a plurality of water absorption bags are arranged at the bottom of the turntable, wherein an operating port for replacing the water absorption bags is arranged at one side of the top of the refrigerating refrigerator, wherein a heat preservation plate is arranged at the operating port for sealing and detaching.

[0009] Furthermore, a handle is provided in the middle of the front outer wall of the freezing tank.

[0010] Description: The emulsion to be demulsified is placed in the freezing tank, and the handle is set to facilitate taking and placing the freezing tank.

[0011] Furthermore, the turntable includes an outer ring and a plurality of connecting rods, one end of the connecting rod is connected to the ring, and the other end of the connecting rod is connected to the telescopic shaft. The ring is provided with a plurality of through holes at equal intervals, and a water absorbent bag is fixedly connected in each through hole.

[0012] It is explained that the setting of the turntable makes it convenient to hang the water absorption bag, so that the water absorption bag can be used to absorb water from the waste emulsion in the early stage of freezing, thereby improving the low-temperature freezing demulsification efficiency.

[0013] Furthermore, a threaded hole is provided inside the through hole, and a fixing bolt for positioning the water absorbent bag is threadedly connected inside the threaded hole.

[0014] Note: Use fixing bolts to keep the absorbent bag stable during the up and down movement and rotation of the turntable.

[0015] Furthermore, the water-absorbing bag is prepared by wrapping a high-molecular water-absorbing resin with a hydrophilic non-woven fabric.

[0016] Furthermore, the number of the water-absorbing bags is 6 to 8.

[0017] Furthermore, the descending height of the turntable is 1 / 3 to 1 / 2 from top to bottom of the freezing tank.

[0018] The beneficial effects of the utility model are:

[0019] The utility model discloses a waste emulsion low-temperature and high-efficiency demulsification equipment, which is provided with a turntable which can be lifted up and down and rotated, and is hung with a water-absorbing bag which is made of a hydrophilic non-woven fabric wrapped with a polymer water-absorbing resin, so as to absorb water from the waste emulsion in the early stage of freezing, which is beneficial to improving the low-temperature freezing demulsification efficiency, reducing the freezing volume of the waste emulsion, and reducing energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall external structure of a low-temperature and high-efficiency demulsification device for waste emulsion of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of a low-temperature and high-efficiency demulsification device for waste emulsion of the utility model after omitting the insulation plate;

[0022] Figure 3 This is a schematic diagram of the structure of a turntable in a low-temperature and high-efficiency demulsification device for waste emulsion of the utility model;

[0023] Figure 4The utility model is a cross-sectional view of a waste emulsion low-temperature high-efficiency demulsification device when a turntable is lowered into a freezing tank during use.

[0024] Among them, 1-refrigerating refrigerator, 11-operating port, 12-insulating plate, 2-freezing tank, 21-handle, 3-driving motor, 31-telescopic shaft, 4-turntable, 41-ring, 42-connecting rod, 43-through hole, 44-threaded hole, 45-fixing bolt, 5-water absorbent bag. DETAILED DESCRIPTION

[0025] Example 1

[0026] like Figure 1 and 2 As shown, a low-temperature and high-efficiency demulsification device for waste emulsion comprises a refrigerating refrigerator 1, a freezing tank 2 is arranged at the lower part of the refrigerating refrigerator 1, the freezing tank 2 is slidably installed and placed by the front of the refrigerating refrigerator 1, a handle 21 is arranged at the middle of the front outer wall of the freezing tank 2, a driving motor 3 is arranged at the top of the refrigerating refrigerator 1, the driving motor 3 is a commercially available product, a telescopic rotating shaft 31 is arranged at the output end of the driving motor 3, the telescopic rotating shaft 31 passes through the top of the refrigerating refrigerator 1, and a turntable 4 is arranged at the rear end, 6 water absorption bags 5 are arranged at the bottom of the turntable 4, the water absorption bags 5 are prepared by wrapping a high molecular water absorption resin with a hydrophilic non-woven fabric, an operation port 11 for replacing the water absorption bag 5 is arranged on one side of the top of the refrigerating refrigerator 1, and a heat preservation plate 12 is arranged at the operation port 11 for sealing and detaching;

[0027] like Figure 3 and 4 As shown, the turntable 4 includes an outer ring 41 and three connecting rods 42, one end of the connecting rod 42 is connected to the ring 41, and the other end of the connecting rod 42 is connected to the telescopic shaft 31. Six through holes 43 are evenly spaced on the ring 41, and a water absorbent bag 5 is fixedly connected in each through hole 43. A threaded hole 44 is provided on the inner side of the through hole 43, and a fixing bolt 45 for positioning the water absorbent bag 5 is threadedly connected in the threaded hole 44. The lowering height of the turntable 4 is 1 / 3 from top to bottom inside the freezing tank 2.

[0028] Example 2

[0029] The difference between this embodiment and embodiment 1 is that:

[0030] The number of connecting rods 42 is 4, the number of water absorption bags 5 and through holes 43 is 8, and the descending height of the turntable 4 is 1 / 2 of the interior of the freezing tank 2 from top to bottom.

[0031] Working principle:

[0032] The working principle of the low-temperature and high-efficiency demulsification equipment for waste emulsion of the utility model is briefly described below.

[0033] When in use, first fill the inside of the freezing tank 2 with waste emulsion, then place the freezing tank 2 inside the refrigerating refrigerator 1, so that the front end of the freezing tank 2 is sealed with the front end of the refrigerating refrigerator 1, and then cool down to -40°C at a cooling rate of 2°C / min, and at the same time start the driving motor 3 to drive the telescopic shaft 31 to rotate and drive the turntable 4 to descend, so that each water absorption bag 5 is immersed in the waste emulsion and rotates continuously to enhance the water absorption effect of the water absorption bag 5 for 2 to 3 minutes, then raise the turntable 4 to extract the water absorption bag 5, reset the turntable 4, and keep freezing at -40°C for 8 hours, and then thaw the freezing tank 2 at room temperature after taking it out;

[0034] If the water absorbent bag 5 needs to be replaced, the insulation board 12 is opened in a non-working state, and the water absorbent bags 5 are replaced one by one through the operation port 11. First, the fixing bolts 45 are screwed to rotate outward along the threaded holes 44, and the water absorbent bags 5 are removed. Then, the top of the new water absorbent bag 5 is inserted into the bottom of the through hole 43, and then the fixing bolts 45 are tightened to fix it. The replacement of the water absorbent bags 5 at each through hole 43 is completed in turn.

Claims

1. A low-temperature and high-efficiency demulsification device for waste emulsion, characterized in that: The invention comprises a refrigerating refrigerator (1), wherein a freezing tank (2) is provided at the lower part of the refrigerating refrigerator (1), wherein the freezing tank (2) is slidably mounted on the front side of the refrigerating refrigerator (1), wherein a driving motor (3) is provided at the top of the refrigerating refrigerator (1), wherein a telescopic rotating shaft (31) is provided at the output end of the driving motor (3), wherein the telescopic rotating shaft (31) passes through the top of the refrigerating refrigerator (1), wherein a turntable (4) is provided at the rear end thereof, wherein a plurality of water absorbing bags (5) are provided at the bottom of the turntable (4), wherein an operating port (11) for replacing the water absorbing bags (5) is provided at one side of the top of the refrigerating refrigerator (1), wherein a heat preservation plate (12) is provided at the operating port (11) in a sealed and detachable manner.

2. The low-temperature and high-efficiency demulsification equipment for waste emulsion according to claim 1, characterized in that: A handle (21) is provided in the middle of the front outer wall of the freezing tank (2).

3. The low-temperature and high-efficiency demulsification equipment for waste emulsion according to claim 1, characterized in that: The turntable (4) comprises an outer circular ring (41) and a plurality of connecting rods (42), one end of the connecting rod (42) is connected to the circular ring (41), and the other end of the connecting rod (42) is connected to the telescopic rotating shaft (31), a plurality of through holes (43) are arranged at equal intervals on the circular ring (41), and a water absorption bag (5) is fixedly connected in each of the through holes (43).

4. The low-temperature and high-efficiency demulsification equipment for waste emulsion according to claim 3, characterized in that: A threaded hole (44) is provided inside the through hole (43), and a fixing bolt (45) for positioning the water absorbent bag (5) is connected to the threaded hole (44) through a thread.

5. The low-temperature and high-efficiency demulsification equipment for waste emulsion according to claim 1, characterized in that: The water-absorbing bag (5) is prepared by wrapping a high-molecular water-absorbing resin with a hydrophilic non-woven fabric.

6. The low-temperature and high-efficiency demulsification equipment for waste emulsion according to claim 1, characterized in that: The number of the water absorbing bags (5) is 6 to 8.

7. The low-temperature and high-efficiency demulsification equipment for waste emulsion according to claim 1, characterized in that: The descending height of the turntable (4) is 1 / 3 to 1 / 2 of the interior of the freezing tank (2) from top to bottom.

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