Decoloring device for biodiesel

Abstract

The utility model provides a decoloring device for biodiesel, which comprises a kettle body, a kettle cover mounted at the upper end of the kettle body, a feed valve mounted at the top of the kettle cover and used for being connected with a feed pipe, three support legs mounted on the outer surface of the lower end of the kettle body in an annular equidistant manner, a vertical pipe mounted at the bottom of the kettle body, a discharge valve mounted at the lower end of the vertical pipe, and a discharge valve mounted at the lower end of the discharge valve. An inserting pipe is installed at the lower end of the discharging valve and penetrates through the upper cover, a filtering cavity is formed under the kettle body, a convex step used for lifting the filtering net cylinder is fixedly connected to the upper portion of the interior of the filtering cavity, the upper cover is inserted into the upper portion of the interior of the filtering net cylinder, and a biodiesel discharging opening is formed in the outer surface of the lower end of the filtering cavity. A stirring piece is installed in the kettle body, an exhaust piece used for exhausting air in a space formed by the kettle body and the kettle cover is installed on the outer surface of the vertical pipe, and the reaction kettle has the following beneficial effect that the efficiency of exhausting the air in the kettle body is improved.

Description

Technical Field

[0001] The utility model relates to a decolorizing device for biodiesel, belonging to the technical field of biodiesel. Background Art

[0002] Biodiesel refers to a clean alternative fuel that can be used in compression engines and is produced from renewable biological resources such as plants and animal fats. Its chemical composition is a series of long-chain fatty acid methyl esters, which are mainly produced by transesterification between plant oil or animal fat and methanol under the action of a catalyst. Its relative molecular mass is about 300, which is close to that of diesel, and its physical and chemical properties and fuel performance are also similar to those of diesel. At present, the raw materials used in China mainly include waste cooking oil, acidified oil, mixed fatty acids, waste plant and animal oils, etc. Different process combinations should be used to produce biodiesel according to different raw materials. Since the raw oil contains a large amount of pigment, it needs to be decolorized.

[0003] At present, in order to prevent oil from oxidizing at high temperature and increase the decolorization effect, it is necessary to fill the kettle with protective gas to exhaust the air in the kettle. In this way, the protective gas first mixes with the air in the kettle after entering the kettle, and then the air in the kettle is discharged together with the protective gas. This process takes a long time to exhaust the air in the kettle. On the one hand, the efficiency is low, and on the other hand, more protective gas is consumed. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model aims to provide a decolorization device for biodiesel to solve the problems raised in the above-mentioned background technology. The utility model improves the efficiency of exhausting the air in the kettle.

[0005] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a decolorization device for biodiesel, comprising a kettle body, a kettle cover is installed at the upper end of the kettle body, a feed valve for connecting a feed pipe is installed on the top of the kettle cover, three legs are installed in a ring shape and equidistantly on the outer surface of the lower end of the kettle body, a vertical pipe is installed at the bottom of the kettle body, a discharge valve is installed at the lower end of the vertical pipe, a plug is installed at the lower end of the discharge valve, the plug passes through the upper cover, a filter cavity is provided directly below the kettle body, a convex step for supporting a filter screen cylinder is connected and fixed at the upper position of the filter cavity, the upper cover is inserted in the upper position of the filter screen cylinder, a biodiesel discharge port is installed on the outer surface of the lower end of the filter cavity, a stirring member is installed in the kettle body, and an exhaust member for discharging air in the space formed by the kettle body and the kettle cover is installed on the outer surface of the vertical pipe.

[0006] Furthermore, the exhaust component includes a stop valve, a stop valve communicating with the standpipe is installed on the outer surface of the standpipe, the stop valve is connected to the bottom of the liquid storage cylinder through a pipeline, a cylinder cover is installed on the top of the liquid storage cylinder, a vertically arranged hydraulic cylinder is installed on the upper surface of the cylinder cover, the movable end of the hydraulic cylinder extends into the liquid storage cylinder and is connected and fixed with a piston, the piston is slidably installed in the liquid storage cylinder, an L-shaped tube is installed on the top of the kettle cover, an exhaust valve is installed on the vertical part of the L-shaped tube, a ball valve is installed on the horizontal part of the L-shaped tube, and the other end of the ball valve is connected to the inert gas storage tank through a connecting pipe.

[0007] Furthermore, the stirring member includes a motor, which is installed in the middle position of the top of the kettle cover, and a shaft is connected and fixed to the motor output shaft, and the lower end of the shaft extends to the inner bottom of the kettle body, and the lower end of the shaft is rotatably connected to a fixed bracket, and the fixed bracket is installed at the bottom of the kettle body, and the lower end of the shaft extends to the lower side of the fixed bracket and is connected and fixed to an intermediate gear, and the intermediate gear is meshed with a plurality of pinion gears arranged equidistantly in a ring, and the pinion gear is rotatably installed on the lower surface of the fixed bracket, and a stirring impeller is installed at the bottom of the pinion gear, and a plurality of long stirring blades and a plurality of short stirring blades are equidistantly installed on the outer surface of the shaft from top to bottom, and the long stirring blades and the short stirring blades are arranged alternately.

[0008] Furthermore, a vacuum suction port for connecting to a vacuum pump is installed on the outer surface of the filter cavity, and the vacuum suction port is arranged on the lower side of the convex step.

[0009] Furthermore, a socket is connected and fixed to the middle position of the upper surface of the upper cover, and the lower end of the plug pipe passes through the socket.

[0010] Furthermore, two first handles are symmetrically fixed on the upper surface of the upper cover, and two second handles are symmetrically installed on the top of the filter cylinder.

[0011] Beneficial effects of the utility model:

[0012] 1. Close the discharge valve, feed valve and ball valve, open the stop valve and exhaust valve, and then control the hydraulic cylinder to extend. The hydraulic cylinder drives the piston to move downward in the liquid storage cylinder, so that the piston squeezes the exhaust liquid in the liquid storage cylinder, and the exhaust liquid enters the kettle body. The exhaust liquid squeezes the air in the kettle body, and the air in the kettle body is discharged through the exhaust valve. Compared with the method of introducing protective gas, the efficiency of exhausting the air in the kettle body is improved. After the air in the kettle body is exhausted, close the exhaust valve, open the ball valve, and control the hydraulic cylinder to contract, so that the exhaust liquid in the kettle body flows back to the liquid storage cylinder. At the same time, the inert gas in the inert gas storage tank enters the kettle body to maintain the air pressure balance in the kettle body.

[0013] 2. When the motor is working, it drives the shaft to rotate, and the shaft drives the long stirring blades and the short stirring blades to rotate. At the same time, the shaft drives the stirring impeller to rotate through the intermediate gear and the pinion gear, so as to achieve stirring of different areas in the kettle. The biodiesel can fully contact with the decolorizing agent. Compared with the decolorizing tablets, the decolorization efficiency is higher.

[0014] 3. The filtering structure formed by the kettle body, the filtering chamber, the filter screen cylinder and other components adopts an upper and lower structure. The decolorized biodiesel can flow directly into the filtering chamber by gravity. Compared with the horizontal discharge layout, it can reduce the use of material pumps, save energy and cost; by replacing the filter screen cylinders with different aperture models, it can meet the use of decolorizers of different sizes. It has universality, simple structure and can be easily cleaned. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0016] Figure 1 This is a schematic diagram of the structure of a biodiesel decolorization device of the utility model;

[0017] Figure 2 This is a schematic diagram of the assembly of a piston, a cylinder cover and a liquid storage cylinder in a biodiesel decolorization device of the utility model;

[0018] Figure 3 It is an explosion diagram of a filter screen cylinder, an upper cover and a filter cavity in a biodiesel decolorization device of the utility model;

[0019] Figure 4 This is a schematic diagram of the assembly of a fixed bracket and a shaft rod in a biodiesel decolorization device of the utility model;

[0020] In the figure: 1-kettle body, 2-kettle cover, 3-exhaust valve, 4-connecting pipe, 5-ball valve, 6-L-type pipe, 7-motor, 8-inert gas storage tank, 9-feeding valve, 10-hydraulic cylinder, 11-cylinder cover, 12-liquid storage cylinder, 13-leg, 14-stop valve, 15-vacuum suction port, 16-insert pipe, 17-insert sleeve, 18-filter cavity, 19-biodiesel discharge port, 20-upper cover, 21-discharge valve, 22-vertical pipe, 23-piston, 24-convex step, 25-filter screen cylinder, 26-shaft rod, 27-long stirring blade, 28-short stirring blade, 29-fixed bracket, 30-pinion gear, 31-stirring impeller, 32-intermediate gear. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] See also Figure 1 The utility model provides a technical solution: a decolorization device for biodiesel, comprising a kettle body 1, a kettle cover 2 is installed on the upper end of the kettle body 1, a feed valve 9 for connecting a feed pipe is installed on the top of the kettle cover 2, three legs 13 are installed in an annular shape and equidistantly on the outer surface of the lower end of the kettle body 1, a vertical pipe 22 is installed at the bottom of the kettle body 1, and a discharge valve 21 is installed at the lower end of the vertical pipe 22. After opening the discharge valve 21, it is convenient to discharge the biodiesel in the kettle body 1.

[0023] See also Figure 1 and Figure 3 A plug 16 is installed at the lower end of the discharge valve 21, and the plug 16 passes through the upper cover 20, wherein a plug sleeve 17 is connected and fixed at the middle position of the upper surface of the upper cover 20, and the lower end of the plug 16 passes through the plug sleeve 17. A filter cavity 18 is provided directly below the kettle body 1, and a convex step 24 for lifting the filter screen cylinder 25 is connected and fixed at the upper position of the filter cavity 18. The upper cover 20 is inserted in the upper position of the filter screen cylinder 25, and a biodiesel discharge port 19 is installed on the outer surface of the lower end of the filter cavity 18. Two first handles are symmetrically fixed on the upper surface of the upper cover 20, and two second handles are symmetrically installed on the top of the filter screen cylinder 25. A handle is provided on the outer surface of the filter cavity 18, and a vacuum suction port 15 for connecting a vacuum pump is installed. The vacuum suction port 15 is arranged on the lower side of the convex step 24. The filtering structure formed by the kettle body 1, the filter cavity 18, the filter screen cylinder 25 and other components adopts an upper and lower structure. The decolorized biodiesel can flow directly into the filter cavity 18 by gravity. Compared with the horizontal discharge layout, the use of material pumps can be reduced, saving energy and costs. By replacing the filter screen cylinders 25 of different aperture models, the use of decolorizers of different sizes can be met. It has universality, simple structure, and can be easily cleaned.

[0024] See also Figure 1 and Figure 4 A motor 7 is installed at the middle position of the top of the kettle cover 2, and a shaft 26 is connected and fixed to the output shaft of the motor 7. The lower end of the shaft 26 extends to the bottom of the kettle body 1, and the lower end of the shaft 26 is rotatably connected to a fixed bracket 29. The fixed bracket 29 is installed at the bottom of the kettle body 1. The lower end of the shaft 26 extends to the lower side of the fixed bracket 29 and is connected and fixed to an intermediate gear 32. The intermediate gear 32 is meshed with a plurality of small gears 30 arranged equidistantly in an annular shape. The small gear 30 is rotatably installed on the lower surface of the fixed bracket 29, and the bottom of the small gear 30 is installed with A stirring impeller 31 and a plurality of long stirring blades 27 and a plurality of short stirring blades 28 are equidistantly installed on the outer surface of the shaft 26 from top to bottom, and the long stirring blades 27 and the short stirring blades 28 are arranged alternately. When the motor 7 is working, the shaft 26 is driven to rotate, and the shaft 26 drives the long stirring blades 27 and the short stirring blades 28 to rotate. At the same time, the shaft 26 drives the stirring impeller 31 to rotate through the intermediate gear 32 and the pinion 30, so as to achieve stirring of different areas in the kettle body 1, so that the biodiesel can fully contact with the decolorizing agent. Compared with the decolorizing tablet, the decolorization efficiency is higher.

[0025] See also Figure 1 and Figure 2 A stop valve 14 communicating with the standpipe 22 is installed on the outer surface of the standpipe 22. The stop valve 14 is connected to the bottom of the liquid storage cylinder 12 through a pipeline. A cylinder cover 11 is installed on the top of the liquid storage cylinder 12. A vertically arranged hydraulic cylinder 10 is installed on the upper surface of the cylinder cover 11. The movable end of the hydraulic cylinder 10 extends into the liquid storage cylinder 12 and is fixedly connected to the piston 23. The piston 23 is slidably installed in the liquid storage cylinder 12. An L-shaped tube 6 is installed on the top of the kettle cover 2. An exhaust valve 3 is installed on the vertical part of the L-shaped tube 6. A ball valve 5 is installed on the horizontal part of the L-shaped tube 6. The other end of the ball valve 5 is connected to the inert gas storage tank 8 through a connecting pipe 4. Close the discharge valve 21, the feed valve 9 and the ball valve 5, and open the stop valve 14. and the exhaust valve 3, and then the hydraulic cylinder 10 is controlled to extend. The hydraulic cylinder 10 drives the piston 23 to move downward in the liquid storage cylinder 12, so that the piston 23 squeezes the exhaust liquid in the liquid storage cylinder 12, and the exhaust liquid enters the kettle body 1. The exhaust liquid squeezes the air in the kettle body 1, and the air in the kettle body 1 is discharged through the exhaust valve 3. Compared with the method of introducing protective gas, the efficiency of discharging the air in the kettle body 1 is improved. After the air in the kettle body 1 is discharged, the exhaust valve 3 is closed, the ball valve 5 is opened, and the hydraulic cylinder 10 is controlled to contract, so that the exhaust liquid in the kettle body 1 flows back to the liquid storage cylinder 12, and at the same time, the inert gas in the inert gas storage tank 8 enters the kettle body 1 to maintain the air pressure balance in the kettle body 1.

[0026] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A biodiesel decolorization device, comprising a kettle (1), characterized in that: The upper end of the kettle body (1) is provided with a kettle cover (2), the top of which is provided with a feed valve (9) for connecting a feed pipe, the outer surface of the lower end of the kettle body (1) is provided with three legs (13) equidistantly arranged in a ring shape, the bottom of the kettle body (1) is provided with a vertical pipe (22), the lower end of which is provided with a discharge valve (21), the lower end of which is provided with a plug (16), the plug (16) passing through the upper cover (20), and a valve (13) is provided directly below the kettle body (1). A filter cavity (18) is provided, a convex step (24) for supporting a filter screen cylinder (25) is connected and fixed to the upper position of the filter cavity (18), the upper cover (20) is inserted in the upper position of the filter screen cylinder (25), a biodiesel discharge port (19) is installed on the outer surface of the lower end of the filter cavity (18), a stirring element is installed in the kettle body (1), and an exhaust element for discharging air in a space formed by the kettle body (1) and the kettle cover (2) is installed on the outer surface of the vertical pipe (22).

2. A biodiesel decolorization device according to claim 1, characterized in that: The exhaust component comprises a stop valve (14). The stop valve (14) in communication with the standpipe (22) is mounted on the outer surface of the standpipe (22). The stop valve (14) is connected to and communicates with the bottom of the liquid storage cylinder (12) through a pipeline. The top of the liquid storage cylinder (12) is mounted with a cylinder cover (11). A vertically arranged hydraulic cylinder (10) is mounted on the upper surface of the cylinder cover (11). The movable end of the hydraulic cylinder (10) extends into the liquid storage cylinder (12) and is connected and fixed to a piston (23). The piston (23) is slidably mounted in the liquid storage cylinder (12). The top of the kettle cover (2) is mounted with an L-shaped tube (6). The vertical portion of the L-shaped tube (6) is mounted with an exhaust valve (3). The horizontal portion of the L-shaped tube (6) is mounted with a ball valve (5). The other end of the ball valve (5) is connected to and communicates with an inert gas storage tank (8) through a connecting tube (4).

3. A biodiesel decolorization device according to claim 1, characterized in that: The stirring member comprises a motor (7), the motor (7) being mounted at the middle position of the top of the kettle cover (2), a shaft (26) being connected and fixed to the output shaft of the motor (7), the lower end of the shaft (26) extending to the inner bottom of the kettle body (1), the lower end of the shaft (26) being rotatably connected to a fixed bracket (29), the fixed bracket (29) being mounted on the inner bottom of the kettle body (1), the lower end of the shaft (26) extending to the lower side of the fixed bracket (29) and being connected and fixed to an intermediate gear (32), the intermediate gear (32) being meshed with a plurality of pinions (30) arranged equidistantly in an annular shape, the pinions (30) being rotatably mounted on the lower surface of the fixed bracket (29), a stirring impeller (31) being mounted at the bottom of the pinions (30), a plurality of long stirring blades (27) and a plurality of short stirring blades (28) being equidistantly mounted on the outer surface of the shaft (26) from top to bottom, the long stirring blades (27) and the short stirring blades (28) being arranged alternately.

4. A biodiesel decolorization device according to claim 1, characterized in that: The outer surface of the filter cavity (18) is provided with a vacuum suction port (15) for connecting to a vacuum pump, and the vacuum suction port (15) is arranged at the lower side of the convex step (24).

5. A biodiesel decolorization device according to claim 1, characterized in that: A plug sleeve (17) is connected and fixed to the middle portion of the upper surface of the upper cover (20), and the lower end of the plug pipe (16) passes through the plug sleeve (17).

6. A biodiesel decolorization device according to claim 1, characterized in that: Two first handles are symmetrically fixed on the upper surface of the upper cover (20), and two second handles are symmetrically installed on the top of the filter screen cylinder (25).

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