A filtration device for propionaldehyde industrial waste liquid

Abstract

A filtration device for propionaldehyde industrial wastewater, relating to the field of industrial wastewater treatment, includes a filter box, a filter screen, and a liquid suction mechanism. The filter screen is located inside the filter box, and the liquid suction mechanism is located on top of the filter box. The liquid suction mechanism includes a guide rod, a float plate, and a discharge pump. A top plate is provided on the top of the filter box, the guide rod slides through the top plate, the float plate is located at the bottom of the guide rod, and a suction nozzle is located at the bottom of the float plate. The discharge pump is located on the top plate, and the suction nozzle is connected to the discharge pump via an outlet pipe. This invention discharges propionaldehyde wastewater into the filter box, where it passes through the filter screen under its own gravity, resulting in more stable filtration pressure. The filtered propionaldehyde liquid is transferred through the suction nozzle to the outlet pipe and finally discharged, achieving stable pressure filtration of the propionaldehyde wastewater and resulting in a more uniform filtration degree.

Description

Technical Field

[0001] This utility model relates to the field of industrial wastewater treatment technology, and in particular to a filtration device for propionaldehyde industrial waste liquid. Background Technology

[0002] Propionaldehyde, an important chemical raw material, is widely used in industries such as resins, plastics, and pharmaceuticals. The industrial wastewater generated during its production contains propionaldehyde, alcohols, esters, and suspended particles. Direct discharge not only pollutes water and soil but also wastes propionaldehyde resources. Therefore, filtration and recycling of propionaldehyde industrial wastewater can reduce environmental pollution while recovering propionaldehyde and other useful components, offering significant economic and environmental benefits and representing an important research direction in the field of chemical wastewater treatment.

[0003] However, existing propionaldehyde industrial wastewater filtration devices have significant drawbacks, with filtration speeds often exhibiting instability. This is primarily due to large fluctuations in impurity concentrations in the wastewater, easy clogging of the filter screen, and the lack of an effective flow rate control mechanism, resulting in inconsistent flow rates during filtration. This instability leads to fluctuating pressure in the liquid transfer pump, causing incomplete filtration of some wastewater, leaving more impurities, and ultimately resulting in uneven filtration during the effluent discharge process. This makes it difficult to meet the requirements for precision and stability in wastewater treatment during industrial production. Utility Model Content

[0004] This utility model aims to at least partially solve one of the technical problems in the related art.

[0005] Therefore, the purpose of this utility model is to provide a filtration device for propionaldehyde industrial wastewater, which provides stable pressure filtration of propionaldehyde wastewater and makes the filtration degree of the effluent more balanced.

[0006] To achieve the above objectives, this utility model proposes a filtration device for propionaldehyde industrial waste liquid, comprising a filter box, a filter screen, and a liquid suction mechanism. The filter screen is disposed inside the filter box, and the liquid suction mechanism is disposed on the top of the filter box. The liquid suction mechanism includes a guide rod, a float plate, and a discharge pump. A top plate is provided on the top of the filter box, and the guide rod slides through the top plate. The float plate is disposed at the bottom of the guide rod, and a suction nozzle is provided at the bottom of the float plate. The discharge pump is disposed on the top plate, and the suction nozzle is connected to the discharge pump via a discharge pipe.

[0007] Furthermore, the overall outline of the filter screen is a hollow columnar structure, and the interior of the filter box is divided into an outer box and an inner box by the filter screen, with the floating plate disposed in the inner box.

[0008] Furthermore, the bottom of the filter box is provided with a liquid inlet pipe, which is connected to the outer box, and the liquid outlet end of the liquid inlet pipe is tangent to the outer surface of the filter screen.

[0009] Furthermore, the bottom of the outer casing is provided with a wastewater outlet, and a dirt baffle is provided on one side of the wastewater outlet. The bottom of the inner casing is provided with a discharge outlet.

[0010] Furthermore, the guide rod has a hollow interior and is provided with multiple vertically spaced positioning holes, each containing a positioning screw.

[0011] Furthermore, a safety valve is provided on the top of the outer casing.

[0012] Furthermore, a telescopic groove is provided through the middle of the top plate, and the guide rod passes through the telescopic groove. The diameter of the telescopic groove is larger than the diameter of the guide rod.

[0013] Beneficial effects: This utility model discharges propionaldehyde waste liquid into the filter box, where it passes through the filter screen under its own gravity, making the filtration pressure more stable. The filtered propionaldehyde liquid is transferred to the outlet pipe through the suction nozzle and finally discharged, thus achieving stable pressure filtration of propionaldehyde wastewater and making the filtration degree of the effluent more uniform.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0016] Figure 1 This is a schematic diagram of a filtration device for propionaldehyde industrial waste liquid according to an embodiment of the present invention.

[0017] Figure 2 This is a structural schematic diagram of a filtration device for propionaldehyde industrial waste liquid according to an embodiment of the present invention from another perspective.

[0018] Figure 3 This is a left cross-sectional view of a filtration device for propionaldehyde industrial waste liquid according to an embodiment of the present invention.

[0019] Figure 4 A top cross-sectional view of a filtration device for propionaldehyde industrial waste liquid according to an embodiment of the present invention.

[0020] As shown in the figure: 1. Filter box; 11. Inlet pipe; 12. Outlet; 13. Outer box; 14. Inner box; 15. Wastewater outlet; 151. Dirt baffle; 2. Top plate; 21. Telescopic groove; 3. Suction mechanism; 31. Guide rod; 311. Positioning screw; 312. Positioning hole; 32. Outlet pipe; 321. Suction nozzle; 33. Drain pump; 34. Safety valve; 35. Outlet; 4. Filter screen; 41. Support rib; 5. Float plate; 51. Brush. Detailed Implementation

[0021] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0022] The following description, in conjunction with the accompanying drawings, describes a filtration device for propionaldehyde industrial waste liquid according to an embodiment of the present invention.

[0023] like Figures 1-4 As shown, the filtration device for propionaldehyde industrial waste liquid provided in this embodiment of the present invention includes a filter box 1, a filter screen 4, and a liquid suction mechanism 3. The filter screen 4 is disposed inside the filter box 1, and the liquid suction mechanism 3 is disposed on the top of the filter box 1. The liquid suction mechanism 3 includes a guide rod 31, a float plate 5, and a drain pump 33. The top of the filter box 1 is provided with a top plate 2, and the guide rod 31 slides through the top plate 2. The float plate 5 is disposed at the bottom of the guide rod 31, and a suction nozzle 321 is disposed at the bottom of the float plate 5. The drain pump 33 is disposed on the top plate 2, and the suction nozzle 321 is connected to the drain pump 33 through a drain pipe 32. The drain pipe 32 is a corrugated hose.

[0024] Specifically, when using the filtration device for propionaldehyde industrial waste liquid of this application, the propionaldehyde waste liquid is first fed into the filter box 1 through the inlet pipe 11. The propionaldehyde waste liquid enters the periphery of the filter screen 4. As the propionaldehyde waste liquid is continuously injected, the liquid level of the propionaldehyde waste liquid rises. The propionaldehyde waste liquid is squeezed by its own gravity and passes through the filter screen 4. The filtered propionaldehyde liquid enters the inner side of the filter screen 4. During this process, the propionaldehyde waste liquid passes through the filter screen 4 for filtration by its own gravity, making the filtration pressure more stable.

[0025] The filtered propionaldehyde liquid is then transferred to the outlet pipe 32 through the suction nozzle 321. Since the float plate 5 always floats on the liquid surface, the suction nozzle 321 always absorbs the liquid at the top of the propionaldehyde liquid to prevent the bottom residue from mixing in. The propionaldehyde liquid enters the discharge pump 33 through the outlet pipe 32 and is finally discharged.

[0026] In one embodiment of this utility model, such as Figure 3 and Figure 4As shown, the overall outline of the filter screen 4 is a hollow columnar structure. The filter box 1 is divided into an outer box 13 and an inner box 14 by the filter screen 4. The outer wall of the filter screen 4 is provided with supporting ribs 41, which play a supporting role for the filter screen 4.

[0027] A liquid inlet pipe 11 is provided at the bottom of the filter box 1, which is connected to the outer box 13. The outlet end of the liquid inlet pipe 11 is tangent to the outer surface of the filter screen 4. A wastewater outlet 15 is also provided at the bottom of the outer box 13. A dirt baffle 151 is provided on one side of the wastewater outlet 15. A drain outlet 12 is provided at the bottom of the inner box 14 to discharge the impurities remaining at the bottom of the inner box 14.

[0028] Specifically, since the outlet end of the inlet pipe 11 is tangent to the outer surface of the filter screen 4, the propionaldehyde waste liquid enters the outer box 13 and flows in a rotating manner. As the filtered impurities in the outer box 13 accumulate, the impurities are pushed by the fluid to rotate at the bottom of the outer box 13 and are eventually intercepted by the dirt baffle 151. Later, the impurities in the outer box 13 can be discharged in a concentrated manner by opening the wastewater outlet 15, reducing the residue of impurities at the bottom of the outer box 13.

[0029] In one embodiment of this utility model, such as Figure 3 As shown, the guide rod 31 has a hollow structure inside, and multiple vertically and equally spaced positioning holes 312 are provided on the guide rod 31. Positioning screws 311 are provided in the positioning holes 312.

[0030] Specifically, in order to prevent the float plate 5 from touching the bottom and to prevent the suction nozzle 321 from sucking in impurities from the bottom of the inner box 14, the lowest descending position of the bottom of the guide rod 31 is adjusted by the positioning screw 311 to prevent the float plate 5 from touching the bottom and reduce the intake of impurities.

[0031] In one embodiment of this utility model, such as Figure 3 As shown, the float plate 5 is installed in the inner box 14. A brush 51 is provided on the edge of the float plate 5 to clean the surface of the filter screen 4 when the float plate 5 moves up and down. A safety valve 34 is installed at the top of the outer box 13 to prevent excessive liquid accumulation in the outer box 13. When the pressure is high, the liquid in the outer box 13 is discharged through the safety valve 34. A telescopic groove 21 is provided through the middle of the top plate 2, and a guide rod 31 passes through the telescopic groove 21. The diameter of the telescopic groove 21 is larger than the diameter of the guide rod 31, facilitating the timely discharge of gas from the filter box 1.

[0032] To clearly illustrate the above embodiments, refer to Figures 1-4The specific working principle of the propionaldehyde industrial waste liquid filtration device of this utility model is as follows: In use, propionaldehyde waste liquid is first fed into the filter box 1 through the inlet pipe 11. The propionaldehyde waste liquid first enters the outer periphery of the filter screen 4, that is, the outer box 13, and accumulates. As the propionaldehyde waste liquid is continuously injected, the liquid level of the propionaldehyde waste liquid rises. The propionaldehyde waste liquid is squeezed by its own gravity and passes through the filter screen 4. The filtered propionaldehyde liquid enters the inner side of the filter screen 4, that is, the inner box 14, and accumulates. During this process, the propionaldehyde waste liquid passes through the filter screen 4 for filtration by its own gravity, making the filtration pressure more stable.

[0033] Subsequently, the filtered propionaldehyde liquid in the inner tank 14 is transferred to the hollow guide rod 31 through the suction nozzle 321, and then the filtered propionaldehyde liquid is transmitted to the outlet pipe 32 through the guide rod 31. Since the float plate 5 always floats on the liquid surface, the suction nozzle 321 always absorbs the liquid at the top of the propionaldehyde liquid to prevent the residue at the bottom of the inner tank 14 from mixing in. The propionaldehyde liquid enters the drain pump 33 through the outlet pipe 32 and is finally discharged from the outlet 35 of the drain pump 33.

[0034] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A filtering device for propionaldehyde industrial waste liquid, characterized in that, The filter includes a filter box (1), a filter screen (4), and a liquid suction mechanism (3). The filter screen (4) is located inside the filter box (1), and the liquid suction mechanism (3) is located on the top of the filter box (1). The liquid suction mechanism (3) includes a guide rod (31), a float plate (5), and a drain pump (33). The top of the filter box (1) is provided with a top plate (2), and the guide rod (31) slides through the top plate (2). The float plate (5) is located at the bottom of the guide rod (31), and a suction nozzle (321) is provided at the bottom of the float plate (5). The drain pump (33) is located on the top plate (2), and the suction nozzle (321) is connected to the drain pump (33) through a liquid outlet pipe (32).

2. The propionaldehyde industrial waste liquid filtering device according to claim 1, characterized in that, The overall outline of the filter screen (4) is a hollow columnar structure. The filter box (1) is divided into an outer box (13) and an inner box (14) by the filter screen (4). The floating plate (5) is set in the inner box (14).

3. The filtering device for propionaldehyde industrial waste liquid according to claim 2, characterized in that, The bottom of the filter box (1) is provided with an inlet pipe (11), which is connected to the outer box (13). The outlet end of the inlet pipe (11) is tangent to the outer surface of the filter screen (4).

4. The propionaldehyde industrial waste liquid filtering device according to claim 2, characterized in that, The bottom of the outer box (13) is also provided with a wastewater outlet (15), and a dirt baffle (151) is provided on one side of the wastewater outlet (15). The bottom of the inner box (14) is provided with a discharge outlet (12).

5. The filtration device for propionaldehyde industrial waste liquid according to claim 1, characterized in that, The guide rod (31) has a hollow structure inside. The guide rod (31) is provided with a plurality of vertically and equally spaced positioning holes (312), and positioning screws (311) are provided in the positioning holes (312).

6. The propionaldehyde industrial waste liquid filtering device according to claim 2, characterized in that, A safety valve (34) is provided on the top of the outer casing (13).

7. The propionaldehyde industrial waste liquid filtering device according to claim 1, characterized in that, The top plate (2) has a telescopic groove (21) through the middle position, and the guide rod (31) passes through the telescopic groove (21). The diameter of the telescopic groove (21) is larger than the diameter of the guide rod (31).

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