A catalyst separation and recovery device for converting waste oil into biodiesel

Abstract

The utility model relates to the technical field of biodiesel production, in particular to a catalyst separation and recovery device for converting waste oil and fat into biodiesel, which comprises a separation tank. A feed pipe is fixedly connected to the rear position at the upper end of the separation tank, a waste discharge pipe is fixedly connected to the middle position at the lower end of the separation tank, two observation windows are fixedly connected to the front surface of the separation tank, and two adjusting components are arranged at the front position at the upper end of the separation tank. The adjusting components include a positioning sleeve, a connecting seat, a threaded sleeve, a first bevel gear, a second bevel gear, an electric motor, a threaded pipe, a connecting block, a positioning block, a discharge pipe, a first suction pipe, a second suction pipe, a positioning rod and a limiting block; the threaded pipe is driven to lift through the adjusting components, so as to adjust the heights of the first suction pipe and the second suction pipe, so that the floating oil and esterified glycerol can be accurately sucked, the separation quality of the esterified glycerol is effectively improved, the purity of the catalyst recovery is further improved, and the waste of the esterified glycerol is avoided.

Description

Technical Field

[0001] This utility model relates to the field of biodiesel production technology, specifically to a catalyst separation and recovery device for converting waste oil into biodiesel. Background Technology

[0002] Domestic biodiesel (fatty acid methyl esters) production mainly uses waste oils with high fatty acid content, such as gutter oil, swill oil, and acidified oil, as raw materials. It generally adopts the method of adding an appropriate amount of inorganic acid as an esterification catalyst, and passing methanol under suitable reaction conditions to produce fatty acid methyl esters through the esterification reaction of fatty acids.

[0003] Among them, announcement number CN209237918U discloses a catalyst recovery device in biodiesel production, including a separation device and an esterification catalyst compounding device connected in series. The former includes a separation aid storage tank, a flow meter, a regulating valve, a No. 1 pump, a separation tank, a floating oil discharge valve, a floating oil receiving tank, a waste discharge valve, and a waste receiving tank. The bottom of the separation aid storage tank is equipped with a flow meter and a regulating valve, which are connected to the inlet of the No. 1 pump. The outlet of the No. 1 pump is connected to the top of the separation tank. The upper side pipe of the separation tank is equipped with a floating oil discharge valve and connected to the floating oil receiving tank. The bottom of the tank is equipped with a waste discharge valve, and a waste receiving tank is located below it. The latter includes a No. 2 pump, a mixing tank with a stirrer, and a fresh catalyst feed pipe. The inlet of the No. 2 pump is connected to the lower side of the separation tank, and the outlet is connected to the top of the mixing tank, which is equipped with a fresh catalyst feed pipe. The bottom of the mixing tank is connected to the inlet of the No. 3 pump, and the pump outlet is connected to the top of the catalyst storage tank. This utility model solves the problems of high energy consumption, large investment, and poor recovery effect in existing catalyst recovery methods.

[0004] The positions of the floating oil discharge pipe and the inlet pipe of pump #2 in this device are relatively fixed. In actual use, due to the different amounts of esterified glycerol and the different impurities inside the glycerol, the amount of floating oil and the amount of esterified glycerol after separation will be different. The fixed floating oil discharge pipe and the inlet pipe of pump #2 are prone to failure to completely drain the floating oil or discharge some of the separated esterified glycerol, affecting the separation quality of esterified glycerol, which in turn affects the purity of catalyst recovery, or causes some of the separated esterified glycerol to be wasted.

[0005] Therefore, it is necessary to invent a catalyst separation and recovery device for converting waste oil into biodiesel to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a catalyst separation and recovery device for converting waste oil into biodiesel, in order to solve the problem in the technology that affects the separation quality of esterified glycerol, thereby affecting the purity of catalyst recovery, or causing some of the separated esterified glycerol to be wasted.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a catalyst separation and recovery device for converting waste oil into biodiesel, comprising a separation tank, a feed pipe fixedly connected to the rear side of the upper end of the separation tank, a discharge pipe fixedly connected to the middle part of the lower end of the separation tank, two sets of observation windows fixedly connected to the front surface of the separation tank, and two sets of adjustment components provided at the front side of the upper end of the separation tank. The adjustment components include a positioning sleeve, a connecting seat, a threaded sleeve, a first bevel gear, a second bevel gear, an electric motor, a threaded pipe, a connecting block, a positioning block, a discharge pipe, a first suction pipe, a second suction pipe, a positioning rod, and a limiting block.

[0008] By adopting the above technical solution, the separator is used to separate esterified glycerol mixed with catalyst, floating oil, and impurities. The floating oil on the upper layer is sucked out by the cooperation of the discharge pipe, the threaded pipe and the first suction pipe. During the suction process, the height of the first suction pipe is adjusted by the adjustment component according to the height and volume of the floating oil, so that the floating oil can be accurately sucked out. While the floating oil is discharged, the esterified glycerol is avoided, which effectively improves the glycerol separation quality, thereby improving the purity of catalyst recovery and avoiding the waste of esterified glycerol. Then, the esterified glycerol is sucked out by the second suction pipe. Finally, the separated layer at the bottom is discharged through the impurity discharge pipe.

[0009] Optionally, the positioning sleeve is fixedly connected to the front side of the upper end of the separation tank, and the connecting seat is rotatably connected to the upper end of the positioning sleeve.

[0010] By adopting the above technical solution, the connecting seat rotates around the positioning sleeve.

[0011] Optionally, the threaded sleeve is fixedly connected to the upper end of the connecting seat, the threaded tube is threadedly connected to the connecting seat, and the lower end of the threaded tube extends through the positioning sleeve into the interior of the separation tank.

[0012] By adopting the above technical solution, the threaded sleeve will drive the threaded tube to rise and fall during the rotation process.

[0013] Optionally, the first suction tube is fixedly connected to the lower end of the left threaded tube, the second suction tube is fixedly connected to the lower end of the right threaded tube, and the upper ends of both sets of threaded tubes are fixedly connected to discharge tubes.

[0014] By adopting the above technical solution, the first suction pipe and the second suction pipe are driven to rise and fall during the lifting and lowering process of the threaded pipe. The first suction pipe is used to suck up the floating oil, and the second suction pipe is used to suck up the esterified glycerol after separation.

[0015] Optionally, the connecting block is fixedly connected to the upper part of the threaded pipe surface, and positioning blocks are fixedly connected to both sides of the positioning block. Positioning rods are fixedly connected to the upper part of the separator at the left and right sides of the connecting seat, and the positioning blocks and positioning rods are slidably connected.

[0016] By adopting the above technical solution, the positioning block slides up and down on the surface of the positioning rod, and at the same time positions the threaded tube to prevent it from rotating.

[0017] Optionally, the limiting block is fixedly connected to the upper end of the positioning rod.

[0018] By adopting the above technical solution, the limiting block prevents the positioning block from falling off the surface of the positioning rod.

[0019] Optionally, the first bevel gear is fixedly connected to the side of the threaded sleeve, the electric motor is fixedly installed on the upper end of the separator tank at the side of the connecting seat, the second bevel gear is fixedly connected to the output end of the electric motor, and the second bevel gear meshes with the first bevel gear.

[0020] By adopting the above technical solution, the electric motor is used to drive the second bevel gear to rotate, and the second bevel gear cooperates with the first bevel gear to drive the connecting seat and the threaded sleeve to rotate.

[0021] Optionally, a servo motor is fixedly installed at the middle position of the upper end of the separation tank, and a stirring rod is fixedly connected to the lower end of the output end of the servo motor.

[0022] By adopting the above technical solution, a servo motor is used to drive the stirring rod to rotate, stirring the injected esterified glycerol and separation aid to achieve rapid mixing.

[0023] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0024] 1. This utility model uses an adjusting component to drive the threaded tube to rise and fall, thereby adjusting the height of the first suction tube so that it can accurately suck up the floating oil. While draining the floating oil, it avoids sucking up esterified glycerol. Then, the second suction tube is used to accurately suck up the esterified glycerol, avoiding disturbing the impurity layer, effectively improving the separation quality of esterified glycerol, thereby improving the purity of catalyst recovery and avoiding waste of esterified glycerol.

[0025] 2. This utility model utilizes a servo motor to drive the stirring rod to rotate, thereby stirring the injected esterified glycerol and separation aid, enabling them to mix rapidly and effectively improving the uniformity of the mixture, which facilitates the rapid separation of the esterified glycerol. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2 This is a schematic diagram of the adjustment component structure of this utility model;

[0028] Figure 3 This is a schematic diagram of the stirring rod structure of this utility model;

[0029] Figure 4 This is a schematic diagram of the threaded pipe structure of this utility model;

[0030] Figure 5 This is a schematic diagram of the connecting seat structure of this utility model.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Separating tank; 11. Feed pipe; 12. Waste discharge pipe; 13. Observation window; 14. Servo motor; 15. Stirring rod; 16. Positioning sleeve; 2. Connecting seat; 21. Threaded sleeve; 22. First bevel gear; 23. Second bevel gear; 24. Electric motor; 25. Threaded pipe; 26. Connecting block; 27. Positioning block; 28. Discharge pipe; 29. ​​First suction pipe; 210. Second suction pipe; 211. Positioning rod; 212. Limiting block. Detailed Implementation

[0033] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0034] This utility model provides, for example Figures 1 to 3 The device shown is a catalyst separation and recovery device for converting waste oil into biodiesel. It includes a separation tank 1, a feed pipe 11 fixedly connected to the rear side of the upper end of the separation tank 1, a discharge pipe 12 fixedly connected to the middle of the lower end of the separation tank 1, two sets of observation windows 13 fixedly connected to the front surface of the separation tank 1, a servo motor 14 fixedly installed at the middle of the upper end of the separation tank 1, a stirring rod 15 fixedly connected to the lower end of the output end of the servo motor 14, and two sets of adjustment components provided at the front side of the upper end of the separation tank 1. The adjustment components include a positioning sleeve 16, a connecting seat 2, a threaded sleeve 21, a first bevel gear 22, a second bevel gear 23, an electric motor 24, a threaded pipe 25, a connecting block 26, a positioning block 27, a discharge pipe 28, a first suction pipe 29, a second suction pipe 210, a positioning rod 211, and a limiting block 212.

[0035] In the process of separating esterified glycerol, esterified glycerol mixed with separation aid is injected into the interior of separation tank 1 through feed pipe 11. During the injection process, servo motor 14 is started and continuously drives stirring rod 15 to rotate. Stirring rod 15 continuously stirs the injected esterified glycerol to fully mix it with the separation aid. After the injection of esterified glycerol is completed, stirring of esterified glycerol is stopped, and esterified glycerol is allowed to stand in the interior of separation tank 1 for a period of time to allow esterified glycerol to separate into layers.

[0036] After the esterified glycerol has been left to stand for a period of time, the less dense oil will float on top of the esterified glycerol, while the denser impurities such as animal and plant gums and proteins will settle to the bottom. This achieves the stratification of the esterified glycerol. Then, the first pump body, in conjunction with the discharge pipe 28, the threaded pipe 25, and the first suction pipe 29, is used to suction the oil. During the suction process, the height of the first suction pipe 29 is adjusted using an adjusting component. After the oil is completely suctioned out, the second pump body, in conjunction with the discharge pipe 28, the threaded pipe 25, and the second suction pipe 210, is used to suction the stratified esterified glycerol. During the suction process, the height of the second suction pipe 210 is adjusted using an adjusting component. This process ensures that the oil is completely drained while avoiding the suction of esterified glycerol, effectively improving the separation quality of the esterified glycerol, thereby increasing the purity of the catalyst recovery and preventing the waste of esterified glycerol.

[0037] See Figures 3 to 5 The positioning sleeve 16 is fixedly connected to the front side of the upper end of the separating tank 1. The connecting seat 2 is rotatably connected to the upper end of the positioning sleeve 16. The threaded sleeve 21 is fixedly connected to the upper end of the connecting seat 2. The threaded tube 25 is threadedly connected to the connecting seat 2. The lower end of the threaded tube 25 extends through the positioning sleeve 16 into the interior of the separating tank 1. The first suction tube 29 is fixedly connected to the lower end of the left threaded tube 25. The second suction tube 210 is fixedly connected to the lower end of the right threaded tube 25. The upper ends of both sets of threaded tubes 25 are fixedly connected to discharge pipes 28. The connecting block 26 is located near the upper end of the surface of the threaded tube 25. The positioning blocks 27 are fixedly connected to both sides of the positioning block 27. The positioning rods 211 are fixedly connected to the upper end of the separation tank 1 on both sides of the connecting seat 2. The positioning blocks 27 and the positioning rods 211 are slidably connected. The limiting block 212 is fixedly connected to the upper end of the positioning rods 211. The first bevel gear 22 is fixedly connected to the side of the threaded sleeve 21. The electric motor 24 is fixedly installed on the upper end of the separation tank 1 on the side of the connecting seat 2. The second bevel gear 23 is fixedly connected to the output end of the electric motor 24. The second bevel gear 23 is meshed with the first bevel gear 22.

[0038] Specifically, during the process of oil extraction, the height of the oil, esterified glycerol, and impurities is first observed through the observation window 13. Then, the upper layer of oil is extracted through the first suction pipe 29. During the extraction process, the electric motor 24 is started. The output end of the electric motor 24 drives the second bevel gear 23 to rotate. The second bevel gear 23 drives the first bevel gear 22 to rotate. The first bevel gear 22 drives the connecting seat 2 and the threaded sleeve 21 to rotate, thereby continuously pushing the threaded pipe 25 downward. The threaded pipe 25 drives the first suction pipe 29 to move downward, so that the first suction pipe 29 is in close contact with the upper surface of the oil to extract the oil, avoiding the extraction of esterified glycerol, until the oil extraction is completed.

[0039] In addition, after the floating oil is removed, the esterified glycerol is then removed through the second suction pipe 210. Similar to the removal of the floating oil, the second suction pipe 210 is kept close to the upper surface of the esterified glycerol for suction. During the suction process, the electric motor 24, in conjunction with the threaded pipe 25, continuously moves the second suction pipe 210 downward to reduce the flow of the esterified glycerol, thereby avoiding disturbance of the lower impurity layer and preventing the intake of impurities, further improving the separation quality of the esterified glycerol, and thus improving the separation quality of the catalyst.

[0040] The working principle of this utility model is as follows: By adjusting the component, the threaded tube 25 is raised and lowered, thereby adjusting the height of the first suction tube 29, so that it can accurately suck up the floating oil. While draining the floating oil, the esterified glycerol is avoided from being sucked up. Then, the second suction tube 210 is used to accurately suck up the esterified glycerol, avoiding disturbance of the impurity layer, effectively improving the separation quality of esterified glycerol, thereby improving the purity of catalyst recovery and avoiding waste of esterified glycerol. At the same time, by using the servo motor 14 to drive the stirring rod 15 to rotate, the injected esterified glycerol and separation aid are stirred, so that they are quickly mixed, effectively improving the uniformity of the mixture and facilitating the rapid stratification of esterified glycerol.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A catalyst separation and recovery device for converting waste oil into biodiesel, comprising a separation tank (1), characterized in that: A feed pipe (11) is fixedly connected to the rear side of the upper end of the separation tank (1), a discharge pipe (12) is fixedly connected to the middle part of the lower end of the separation tank (1), two sets of observation windows (13) are fixedly connected to the front surface of the separation tank (1), and two sets of adjustment components are provided at the front side of the upper end of the separation tank (1). The adjustment components include a positioning sleeve (16), a connecting seat (2), a threaded sleeve (21), a first bevel gear (22), a second bevel gear (23), an electric motor (24), a threaded pipe (25), a connecting block (26), a positioning block (27), a discharge pipe (28), a first suction pipe (29), a second suction pipe (210), a positioning rod (211), and a limiting block (212).

2. The catalyst separation and recovery device for converting waste oil into biodiesel according to claim 1, characterized in that: The positioning sleeve (16) is fixedly connected to the front side of the upper end of the separation tank (1), and the connecting seat (2) is rotatably connected to the upper end of the positioning sleeve (16).

3. The catalyst separation and recovery device for converting waste oil into biodiesel according to claim 1, characterized in that: The threaded sleeve (21) is fixedly connected to the upper end of the connecting seat (2), the threaded tube (25) is threadedly connected to the connecting seat (2), and the lower end of the threaded tube (25) extends through the positioning sleeve (16) into the interior of the separation tank (1).

4. The catalyst separation and recovery device for converting waste oil into biodiesel according to claim 1, characterized in that: The first suction tube (29) is fixedly connected to the lower end of the left threaded tube (25), the second suction tube (210) is fixedly connected to the lower end of the right threaded tube (25), and the upper ends of both sets of threaded tubes (25) are fixedly connected to discharge tubes (28).

5. The catalyst separation and recovery device for converting waste oil into biodiesel according to claim 1, characterized in that: The connecting block (26) is fixedly connected to the upper part of the surface of the threaded pipe (25). The positioning block (27) is fixedly connected to both sides. The upper part of the separation tank (1) is fixedly connected to the left and right sides of the connecting seat (2). The positioning block (27) and the positioning rod (211) are slidably connected.

6. The catalyst separation and recovery device for converting waste oil into biodiesel according to claim 5, characterized in that: The limiting block (212) is fixedly connected to the upper end of the positioning rod (211).

7. The catalyst separation and recovery device for converting waste oil into biodiesel according to claim 1, characterized in that: The first bevel gear (22) is fixedly connected to the side of the threaded sleeve (21), the electric motor (24) is fixedly installed on the upper end of the separator (1) at the side of the connecting seat (2), the second bevel gear (23) is fixedly connected to the output end of the electric motor (24), and the second bevel gear (23) is meshed with the first bevel gear (22).

8. The catalyst separation and recovery device for converting waste oil into biodiesel according to claim 1, characterized in that: A servo motor (14) is fixedly installed at the middle of the upper end of the separation tank (1), and a stirring rod (15) is fixedly connected to the lower end of the output end of the servo motor (14).

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