Biodiesel wastewater treatment device

Abstract

The utility model discloses a biodiesel wastewater treatment device which comprises a separation box, a collection box fixedly sleeved at the bottom of the outer surface of the separation box, an inflator arranged on the left side of the collection box, an inflation pipe of the inflator communicated with the bottom of the outer surface of the separation box, and a floating oil collector arranged on the left side of the inflator, a liquid inlet pipe, a motor and a feeding pipe are fixedly installed on the upper surface of the separation box from left to right, the output end of the motor penetrates into an inner cavity of the separation box and is fixedly provided with a stirring frame, an arc-shaped notch is formed in the outer surface of the collection box, and fixing plates are fixedly installed on the left side and the right side of an inner cavity of the collection box and located at the arc-shaped notch. A collecting box is placed on the upper surface of the fixing plate, and a filter screen is fixedly installed at the bottom of an inner cavity of the collecting box. The device is simple in structure, integrates various processes, is convenient to operate, can effectively treat various greases in wastewater, is high in working efficiency, and is convenient for workers to use.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a device for treating biodiesel wastewater. Background Technology

[0002] Biodiesel is generally produced using waste oils (gutter oil, swill oil, acidified oil, etc.) as raw materials. The wastewater discharged during the production process mainly comes from the wastewater separated from the heating and acid treatment of waste oils. The oil wastewater has a high concentration of organic matter and is highly polluting. If it is discharged into natural water bodies without treatment, it will affect the reoxygenation of the water and its natural evolution process, harm the aquatic ecosystem, and seriously pollute the environment.

[0003] Oily wastewater not only includes floating oil on the surface of the wastewater, but also some small oil particles dispersed in the wastewater. Due to their small particle size, they are not easy to handle, resulting in incomplete wastewater treatment. After discharge, they will still cause harm to the natural environment. To address this, we have designed a biodiesel wastewater treatment device. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a biodiesel wastewater treatment device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a biodiesel wastewater treatment device, comprising a separation tank, a collection tank fixedly fitted at the bottom of the outer surface of the separation tank, an aerator on the left side of the collection tank, the aerator's inflation pipe being connected to the bottom of the outer surface of the separation tank, an oil float collector on the left side of the aerator, an inlet pipe, a motor, and a feed pipe fixedly installed from left to right on the upper surface of the separation tank, the output end of the motor penetrating into the inner cavity of the separation tank and fixedly installed with a stirring frame, an arc-shaped groove on the outer surface of the collection tank, a fixing plate fixedly installed on the left and right sides of the inner cavity of the collection tank at the arc-shaped groove, a collection box placed on the upper surface of the fixing plate, a filter screen fixedly installed at the bottom of the inner cavity of the collection box, a clean water tank on the right side of the collection tank, and a water pump between the clean water tank and the collection tank.

[0006] Preferably, the adsorption component of the oil spill collector is fixedly installed at the top of the inner cavity of the separation tank, and the adsorption component is fixedly connected to the recovery machine through an oil suction pipe.

[0007] Preferably, fixing strips are fixedly installed on both the left and right sides of the inner cavity of the clean water tank, and a sliding groove is provided on the front surface of the fixing strip, and a limiting strip is provided in the sliding groove.

[0008] Preferably, an installation frame is fixedly installed on one side corresponding to the limiting strip, the front end of the installation frame penetrates the clean water tank, and there are two installation frames. An activated carbon adsorption layer is fixedly installed in the upper installation frame, and a quartz sand filter layer is fixedly installed in the lower installation frame. A water outlet pipe is fixedly installed at the bottom of the right surface of the clean water tank.

[0009] Preferably, the water pump has a suction pipe fixedly installed at its inlet, the left end of which is connected to the collection tank, and a drain pipe fixedly installed at its outlet, the end of which is connected to the upper surface of the clean water tank.

[0010] Preferably, the bottom of the separation box is conical, and an electric valve is fixedly installed on the bottom of the outer surface of the separation box. A sealing plug is inserted into the top of the feed pipe, and a one-way valve is fixedly installed on the outer surface of the air inflator.

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

[0012] In the application of this invention, wastewater is discharged into a separation tank. After settling, floating oil rises to the surface of the wastewater and is collected by an oil flotation machine. Once the surface oil is collected, an aerator is activated to inflate the bottom of the wastewater, generating bubbles that float upwards, carrying most of the dispersed oil to the surface. This is then collected a second time by the oil flotation machine. Flocculant is then added to the separation tank through a feed pipe. A motor is started to rotate the stirring rack, causing the dispersed and dissolved oils to react with the flocculant. The wastewater is then discharged into a collection tank, where the flocculent material is filtered through a filter screen. The filtered wastewater is then pumped into a clear water tank, where it passes through an activated carbon adsorption layer and a quartz sand filter layer for further filtration. Therefore, this invention has a simple structure, integrates various processes, is easy to operate, effectively treats various oils in wastewater, has high work efficiency, and is convenient for operators. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the separation box structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the collection box structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the clean water tank of this utility model.

[0017] In the diagram: 1. Separation box; 2. Collection box; 3. Aerator; 4. Oil float collector; 5. Liquid inlet pipe; 6. Motor; 7. Feed pipe; 8. Stirring rack; 9. Fixing plate; 10. Collection box; 11. Filter screen; 12. Clean water tank; 13. Water pump; 14. Fixing strip; 15. Slide groove; 16. Limiting strip; 17. Mounting frame; 18. Activated carbon adsorption layer; 19. Quartz sand filter layer. Detailed Implementation

[0018] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0019] Please see Figure 1-4 A biodiesel wastewater treatment device includes a separation tank 1, a collection tank 2 fixedly fitted on the bottom of the outer surface of the separation tank 1, an aerator 3 on the left side of the collection tank 2, the aerator 3 having an aeration pipe connected to the bottom of the outer surface of the separation tank 1, an oil float collector 4 on the left side of the aerator 3, an inlet pipe 5, a motor 6 and a feed pipe 7 fixedly installed on the upper surface of the separation tank 1 from left to right, the output end of the motor 6 penetrating into the inner cavity of the separation tank 1 and fixedly installed with a stirring frame 8, an arc-shaped groove on the outer surface of the collection tank 2, a fixing plate 9 fixedly installed on the left and right sides of the inner cavity of the collection tank 2 at the arc-shaped groove, a collection box 10 placed on the upper surface of the fixing plate 9, a filter screen 11 fixedly installed at the bottom of the inner cavity of the collection box 10, a clean water tank 12 on the right side of the collection tank 2, and a water pump 13 between the clean water tank 12 and the collection tank 2.

[0020] The adsorption component of the oil spill collector 4 is fixedly installed on the top of the inner cavity of the separation box 1. The adsorption component is fixedly connected to the recovery machine through the oil suction pipe. The adsorption component can adsorb the oil spill and transfer it to the recovery machine through the oil suction pipe for subsequent secondary use.

[0021] Fixing strips 14 are fixedly installed on both the left and right sides of the inner cavity of the clean water tank 12. A groove 15 is opened on the front surface of the fixing strip 14. A limiting strip 16 is provided in the groove 15. An installation frame 17 is fixedly installed on the corresponding side of the limiting strip 16. The front end of the installation frame 17 penetrates the clean water tank 12. There are two installation frames 17. An activated carbon adsorption layer 18 is fixedly installed in the upper installation frame 17, and a quartz sand filter layer 19 is fixedly installed in the lower installation frame 17. A water outlet pipe is fixedly installed at the bottom of the right surface of the clean water tank 12. Through the combined use of the activated carbon adsorption layer 18 and the quartz sand filter layer 19, the treated wastewater can be finely treated, and the residual oil in the wastewater can be adsorbed, thereby improving the wastewater treatment efficiency.

[0022] A suction pipe is fixedly installed at the inlet of the water pump 13. The left end of the suction pipe is connected to the collection tank 2. A drain pipe is fixedly installed at the outlet of the water pump 13. The end of the drain pipe away from the water pump 13 is connected to the upper surface of the clean water tank 12. Through the water pump 13, the wastewater inside the collection tank 2 can be transported to the clean water tank 12, which improves the working efficiency.

[0023] The bottom of the separation box 1 is conical, and an electric valve is fixedly installed on the bottom of the outer surface of the separation box 1. A sealing plug is inserted into the top of the feed pipe 7, and a one-way valve is fixedly installed on the outer surface of the air inlet pipe.

[0024] In summary: When using this utility model, wastewater is discharged into the separation tank 1. By letting it stand, the floating oil can float on the surface of the wastewater and be collected by the floating oil collector 4. After the surface floating oil is collected, the aerator 3 can be started to aerate the bottom of the wastewater, generating bubbles that float upwards and carry most of the dispersed oil to the surface of the wastewater. It is then collected a second time by the floating oil collector 4. The flocculant is then added into the separation tank 1 through the feed pipe 7. The motor 6 is started to drive the stirring frame 8 to rotate, so that the dispersed oil, dissolved oil and flocculant react. The wastewater is discharged into the collection tank 2, and the flocculent matter is filtered through the filter screen 11. The filtered wastewater is then discharged into the clear water tank 12 by the water pump 13, so that it passes through the activated carbon adsorption layer 18 and the quartz sand filter layer 19 for fine filtration. Finally, it is discharged through the outlet pipe.

[0025] 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 principles of this 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. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A biodiesel wastewater treatment device, comprising a separation tank (1), characterized in that: A collection box (2) is fixedly fitted onto the bottom of the outer surface of the separation box (1). An air pump (3) is located on the left side of the collection box (2). The air pump (3)'s air pipe is connected to the bottom of the outer surface of the separation box (1). An oil float collector (4) is located on the left side of the air pump (3). An inlet pipe (5), a motor (6), and a feed pipe (7) are fixedly installed on the upper surface of the separation box (1) from left to right. The output end of the motor (6) extends into the inner cavity of the separation box (1) and... A stirring rack (8) is fixedly installed. An arc-shaped groove is opened on the outer surface of the collection box (2). Fixing plates (9) are fixedly installed on the left and right sides of the inner cavity of the collection box (2) and at the arc-shaped groove. A collection box (10) is placed on the upper surface of the fixing plate (9). A filter screen (11) is fixedly installed at the bottom of the inner cavity of the collection box (10). A clean water tank (12) is provided on the right side of the collection box (2). A water pump (13) is provided between the clean water tank (12) and the collection box (2).

2. The biodiesel wastewater treatment device according to claim 1, characterized in that: The adsorption component of the oil collection machine (4) is fixedly installed on the top of the inner cavity of the separation box (1), and the adsorption component is fixedly connected to the recovery machine through an oil suction pipe.

3. The biodiesel wastewater treatment device according to claim 1, characterized in that: Fixing strips (14) are fixedly installed on both the left and right sides of the inner cavity of the clean water tank (12). A groove (15) is provided on the front surface of the fixing strip (14), and a limiting strip (16) is provided in the groove (15).

4. The biodiesel wastewater treatment device according to claim 3, characterized in that: An installation frame (17) is fixedly installed on one side corresponding to the limiting strip (16). The front end of the installation frame (17) passes through the clean water tank (12). There are two installation frames (17). An activated carbon adsorption layer (18) is fixedly installed in the upper installation frame (17), and a quartz sand filter layer (19) is fixedly installed in the lower installation frame (17). A water outlet pipe is fixedly installed at the bottom of the right surface of the clean water tank (12).

5. The biodiesel wastewater treatment device according to claim 1, characterized in that: The water pump (13) has a suction pipe fixedly installed at its inlet, and the left end of the suction pipe is connected to the collection box (2). The water pump (13) has a drain pipe fixedly installed at its outlet, and the end of the drain pipe away from the water pump (13) is connected to the upper surface of the clean water tank (12).

6. The biodiesel wastewater treatment device according to claim 1, characterized in that: The bottom of the separation box (1) is conical, and an electric valve is fixedly installed on the bottom of the outer surface of the separation box (1). A sealing plug is inserted into the top of the feed pipe (7), and a one-way valve is fixedly installed on the outer surface of the air inlet pipe.

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