A kind of furfuroic acid production wastewater pretreatment equipment
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENXIAN WATER SOURCE NEW ENERGY TECH CO LTD
- Filing Date
- 2025-08-28
- Publication Date
- 2026-07-21
AI Technical Summary
In existing furoic acid production wastewater treatment equipment, the small spacing between the inclined plates in the inclined tube sedimentation tank leads to blockage, reducing the treatment capacity and sedimentation efficiency. It also causes problems such as poor water separation, sludge floating, and sludge in the effluent.
A wastewater pretreatment device for furoic acid production was designed, including a sedimentation mechanism and a coagulation mechanism. The sedimentation tank uses guide plates and filter screens to prevent clogging, and the coagulation tank uses components such as a mixer and water pump to achieve coagulation and sedimentation of the wastewater, thereby improving sedimentation efficiency.
It effectively prevents the clogging of the settling inclined plate, improves the sedimentation efficiency and solid-liquid separation effect of furoic acid production wastewater, and ensures the clarity and treatment capacity of the effluent.
Smart Images
Figure CN224530786U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of furoic acid production technology, and in particular to a wastewater pretreatment device for furoic acid production. Background Technology
[0002] Furoic acid production wastewater is industrial wastewater generated during the preparation of furoic acid. It comes from the stages of raw material pretreatment, chemical reaction, and product separation and purification. It contains unreacted furfural raw materials, furoic acid residues, and reaction by-products, as well as acid pollutants. It has a certain degree of biological toxicity and must be treated to meet standards before being discharged; otherwise, it will pollute water bodies.
[0003] Furoic acid production wastewater contains furfural and residual furfural pollutants, and is highly acidic and biotoxic. If it enters the subsequent treatment device directly, it will impact the biochemical unit, reduce treatment efficiency, and even damage the equipment. Pretreatment equipment can adjust the pH and remove some toxic substances and recalcitrant components.
[0004] In the sedimentation process of furoic acid production wastewater treatment equipment, the horizontal flow sedimentation structure occupies a large area and suffers from poor water separation, sludge floating, and sludge-carrying problems in the effluent, resulting in excessive suspended solids. In the existing technology, inclined plate sedimentation tanks are set up to increase the settling area by reducing the channel spacing, thereby improving the solid-liquid separation efficiency and overcoming the shortcomings of the horizontal flow sedimentation structure. However, in actual use, if the spacing between the inclined plates in the inclined plate sedimentation tank is too small, blockage will occur, leading to a decrease in treatment capacity and reducing the sedimentation efficiency of furoic acid production wastewater. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a wastewater pretreatment device for furoic acid production, which aims to improve the problem in the prior art where the spacing between the inclined plates in the inclined tube sedimentation tank is too small, which can cause blockage, leading to a decrease in treatment capacity and a reduction in the sedimentation efficiency of furoic acid production wastewater.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a wastewater pretreatment device for furoic acid production, including a workbench, a frame fixedly connected to the top rear side of the workbench, a sedimentation mechanism provided on the top left side of the workbench, the sedimentation mechanism being used to remove large suspended solids and enhance the sedimentation effect, and a coagulation mechanism provided on the front side of the frame, the coagulation mechanism being used to adjust, neutralize and coagulate the wastewater. The sedimentation mechanism includes a sedimentation tank, the bottom of which is fixedly connected to the top left side of the workbench. A filter port is fixedly connected to the top rear side of the sedimentation tank, and a filter screen is slidably connected to the inner side of the filter port. An outlet is fixedly connected to the front side of the sedimentation tank. Multiple guide plates are fixedly connected to the inner side of the sedimentation tank, and settling plates are fixedly connected to the bottom of each of the multiple guide plates. Sliding components are provided at the top and bottom of the filter screen, and an opening and closing component is provided at the bottom of the sedimentation tank.
[0007] As a further description of the above technical solution: The coagulation mechanism includes a coagulation tank, the bottom of which is fixedly connected to the top of the frame. A top cover is fixedly connected to the top of the coagulation tank. An additive port is fixedly connected to the rear side of the top of the top cover. A mixer is rotatably connected to the bottom of the top cover. A water pump is fixedly connected to the bottom left side of the coagulation tank. A drive assembly is provided on the top of the top cover. An adjustment assembly is provided on the front side of the top of the workbench. A filter assembly is provided on the top of the adjustment assembly. A neutralization assembly is provided on the rear side of the adjustment assembly.
[0008] As a further description of the above technical solution: The sliding assembly includes two slide bars, which are fixedly connected to the top and bottom of the filter screen respectively. The inner top and inner bottom of the filter port are provided with sliding grooves.
[0009] As a further description of the above technical solution: The opening and closing assembly includes a rotating shaft, the front and rear ends of which are rotatably connected to the bottom of the sedimentation tank. An opening and closing plate is fixedly connected to the right side of the rotating shaft. Movable seats are fixedly connected to the front and rear sides of the bottom of the opening and closing plate. Two fixed seats are fixedly connected to the top left side of the workbench, and telescopic rods are rotatably connected to the inner sides of the two fixed seats.
[0010] As a further description of the above technical solution: The adjustment assembly includes an adjustment tank, the bottom of which is fixedly connected to the front right side of the top of the workbench, a lid is fixedly connected to the top of the adjustment tank, and a rotor is rotatably connected to the bottom of the lid.
[0011] As a further description of the above technical solution: The drive assembly includes a first motor, the bottom of which is fixedly connected to the top of the can lid, and a second motor is fixedly connected to the top of the can lid.
[0012] As a further description of the above technical solution: The filtration assembly includes a filter, the bottom of which is fixedly connected to the top of the can lid, a filter element is slidably connected inside the filter, and a connecting seat is fixedly connected to the top of the filter.
[0013] As a further description of the above technical solution: The neutralization assembly includes a neutralization tank, the front of which is fixedly connected to the rear of the regulating tank, and a dosing port is fixedly connected to the top of the neutralization tank.
[0014] This utility model has the following beneficial effects: 1. In this utility model, suspended solids in the wastewater in the sedimentation tank are separated into solid and liquid by gravity sedimentation. The sedimentation tank provides stable support, the filter port allows wastewater to flow in in a directional manner, the filter screen filters out larger suspended solids to prevent clogging of the settling inclined plate, the outlet discharges clarified wastewater to complete the discharge, the chute ensures smooth pulling of the filter screen, the guide inclined plate guides water into the settling inclined plate, and the settling inclined plate allows suspended solids to settle and fall to the bottom of the tank, avoiding clogging, increasing the treatment capacity, and improving the sedimentation efficiency of furoic acid production wastewater.
[0015] 2. In this utility model, wastewater and coagulant are mixed in the coagulation tank, which promotes the transformation of soluble substances into suspended solids. The coagulation tank provides a stable installation foundation, the top cover prevents debris from falling in, the dosing port allows coagulant to be added, the mixer improves the coagulation speed and effect, the water pump delivers wastewater to the filter port, the regulating tank balances the water quality and quantity, the tank cover prevents contaminants from entering, the rotor rotation mixes the wastewater, the filter element filters large particles, the connecting seat facilitates the introduction of wastewater, the neutralization tank provides a neutralization site, and the dosing port allows the addition of chemicals. Attached Figure Description
[0016] Figure 1 This is a perspective view of a wastewater pretreatment device for furoic acid production proposed in this utility model; Figure 2 This is a cross-sectional view of the sedimentation tank in a wastewater pretreatment device for furoic acid production proposed in this utility model. Figure 3 This is an exploded view of the sliding component in a wastewater pretreatment device for furoic acid production according to this utility model. Figure 4 This is a split view of the coagulation mechanism in a wastewater pretreatment device for furoic acid production proposed in this utility model. Figure 5 This is an exploded view of the filter assembly in a wastewater pretreatment device for furoic acid production proposed in this utility model.
[0017] Legend: 1. Workbench; 2. Frame; 3. Sedimentation mechanism; 31. Sedimentation tank; 32. Filter port; 33. Filter screen; 34. Outlet; 35. Guide plate; 36. Settling plate; 37. Sliding assembly; 371. Sliding bar; 372. Slide groove; 38. Opening and closing assembly; 381. Rotating shaft; 382. Opening and closing plate; 383. Telescopic rod; 384. Fixed base; 385. Moving base; 4. Coagulation mechanism; 41 41. Coagulation tank; 42. Top cover; 43. Addition port; 44. Mixer; 45. Water pump; 46. Drive assembly; 461. Motor 1; 462. Motor 2; 47. Filter assembly; 471. Filter; 472. Filter element; 473. Connecting seat; 48. Adjustment assembly; 481. Adjustment tank; 482. Rotor; 483. Tank cover; 49. Neutralization assembly; 491. Neutralization tank; 492. Dosing port. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] Reference Figure 1 , Figure 2 and Figure 3 An embodiment of this utility model is provided: a wastewater pretreatment device for furoic acid production, including a workbench 1, a frame 2 fixedly connected to the top rear side of the workbench 1, a sedimentation mechanism 3 provided on the top left side of the workbench 1, the sedimentation mechanism 3 is used to remove large suspended solids and enhance the sedimentation effect, and a coagulation mechanism 4 is provided on the front side of the frame 2, the coagulation mechanism 4 is used to adjust, neutralize and coagulate the wastewater. The sedimentation mechanism 3 includes a sedimentation tank 31. Suspended solids in the wastewater settle in the sedimentation tank 31 due to gravity. The bottom of the sedimentation tank 31 is fixedly connected to the top left of the workbench 1. A filter port 32 is fixedly connected to the top rear side of the sedimentation tank 31. The filter port 32 provides an inlet for the wastewater entering the sedimentation tank 31. A filter screen 33 is slidably connected to the inner side of the filter port 32. The filter screen 33 filters larger suspended solids and prevents blockage between the settling inclined plates 36. An outlet 34 is fixedly connected to the front side of the sedimentation tank 31. The outlet 34 can discharge clarified wastewater. Multiple guide inclined plates 35 are fixedly connected to the inner side of the sedimentation tank 31. The guide inclined plates 35 have a large inclination angle, which can quickly guide water into the settling inclined plates 36 to enhance the sedimentation effect. Settling inclined plates 36 are fixedly connected to the bottom of the multiple guide inclined plates 35. The settling inclined plates 36 have a small inclination angle. Due to gravity, suspended solids fall to the bottom of the sedimentation tank 31 after settling on the settling inclined plates 36. The filter screen 33 is provided with sliding components 37 at both the top and bottom. The sliding components 37 include two sliding strips 371, which are fixedly connected to the top and bottom of the filter screen 33 respectively. The inner top and inner bottom of the filter port 32 are provided with sliding grooves 372. The sliding strips 371 slide in the sliding grooves 372, and the sliding strips 371 drive the filter screen 33 to be pulled out from the filter port 32 for easy cleaning. The bottom of the sedimentation tank 31 is provided with an opening and closing component 38, which includes a rotating shaft. 381, the front and rear ends of the rotating shaft 381 are rotatably connected to the bottom of the sedimentation tank 31. The right side of the rotating shaft 381 is fixedly connected to the opening and closing plate 382. The front and rear sides of the bottom of the opening and closing plate 382 are fixedly connected to the movable seat 385. The top left side of the workbench 1 is fixedly connected to two fixed seats 384. The inner side of the two fixed seats 384 is rotatably connected to the telescopic rod 383. The telescopic rod 383 extends and retracts, causing the movable seat 385 to move. The movement of the movable seat 385 causes the opening and closing plate 382 to rotate around the rotating shaft 381. Specifically, suspended solids in the wastewater in the sedimentation tank 31 settle due to gravity, achieving solid-liquid separation. The bottom of the sedimentation tank 31 is fixedly connected to the top left side of the workbench 1, providing stable support for itself. The filter port 32 provides an inlet for the wastewater entering the sedimentation tank 31, enabling directional flow of wastewater. The filter screen 33 filters larger suspended solids, preventing blockage between the settling inclined plates 36 and ensuring smooth sedimentation. The outlet 34 discharges the clarified wastewater, completing the discharge of wastewater after sedimentation. The guide inclined plate 35 has a large inclination angle, quickly guiding water into the settling inclined plate 36 to enhance the sedimentation effect. The settling inclined plate 36 has a small inclination angle, allowing suspended solids to settle on the surface and fall to the bottom of the sedimentation tank 31, improving sedimentation efficiency. The slide bar 371 is fixed to the top and bottom of the filter screen 33 and slides in the slide groove 372, driving the filter screen 33 to be pulled out from the filter port 32 for easy cleaning. The slide groove 372 provides a sliding path for the slide bar 371 to ensure smooth pulling of the filter screen 33. The front and rear ends of the rotating shaft 381 are rotatably connected to the bottom of the sedimentation tank 31, providing a fulcrum for the rotation of the opening and closing plate 382. The opening and closing plate 382 covers the bottom of the sedimentation tank 31 to control the discharge of settled sludge. The movable seat 385 is fixed to the front and rear sides of the bottom of the opening and closing plate 382 to transmit the power of the telescopic rod 383. The fixed seat 384 is fixed to the top left side of the workbench 1 to provide installation support for the telescopic rod 383. The telescopic rod 383 extends and retracts, driving the movable seat 385 to move, thereby realizing the opening and closing control of the opening and closing plate 382.
[0020] Reference Figure 1 , Figure 4 and Figure 5The coagulation mechanism 4 includes a coagulation tank 41, in which wastewater and coagulant are mixed, and the soluble substances in the wastewater are converted into suspended solids. The bottom of the coagulation tank 41 is fixedly connected to the top of the frame 2, and a top cover 42 is fixedly connected to the top of the coagulation tank 41, covering the opening of the coagulation tank 41. An additive inlet 43 is fixedly connected to the rear side of the top of the top of the top cover 42, and the coagulant is added into the coagulation tank 41 through the additive inlet 43. A mixer 44 is rotatably connected to the bottom of the top cover 42, and the mixer 44 stirs the mixture. To improve the speed and effect of wastewater coagulation, a water pump 45 is fixedly connected to the bottom left side of the coagulation tank 41. The water pump 45 transports the wastewater in the coagulation tank 41 to the filter port 32. A drive assembly 46 is provided on the top of the top cover 42. The drive assembly 46 includes a motor 461, which drives the rotor 482 to rotate. The bottom of the motor 461 is fixedly connected to the top of the tank cover 483. A second motor 462 is fixedly connected to the top of the top cover 42. The second motor 462 drives the mixer 44 to rotate. An adjustment assembly 48 is provided on the top front side of the workbench 1. The adjustment assembly 48 includes an adjustment tank 481, which stores wastewater generated at different times. The bottom of the adjustment tank 481 is fixedly connected to the front right side of the top of the workbench 1. A tank cover 483 is fixedly connected to the top of the adjustment tank 481, covering the opening of the adjustment tank 481. A rotor 482 is rotatably connected to the bottom of the tank cover 483. The rotation of the rotor 482 ensures that the wastewater is fully mixed. A filter assembly 47 is provided on the top of the adjustment assembly 48. The filter assembly 47 includes a filter 471, the bottom of which is fixedly connected to the tank cover. At the top of filter 483, filter element 472 is slidably connected inside filter 471, and connecting seat 473 is fixedly connected to the top of filter 471. Wastewater enters filter element 472 inside filter 471. Filter element 472 initially filters large particles in wastewater. Neutralization component 49 is provided on the rear side of regulating component 48. Neutralization component 49 includes neutralization tank 491. The front side of neutralization tank 491 is fixedly connected to the rear side of regulating tank 481. Dosing port 492 is fixedly connected to the top of neutralization tank 491. Neutralizing agent is put into neutralization tank 491 through dosing port 492, and acid-base neutralization is completed in neutralization tank 491. Specifically, wastewater and coagulant are mixed in the coagulation tank 41, causing soluble substances in the wastewater to be converted into suspended solids. The bottom of the coagulation tank 41 is fixedly connected to the top of the frame 2, providing a stable installation foundation. The top cover 42 covers the opening of the coagulation tank 41 to prevent debris from falling into the coagulation tank 41. The addition port 43 allows coagulant to be added into the coagulation tank 41, ensuring the addition of coagulant. The mixer 44 improves the coagulation speed and effect of the wastewater during mixing, accelerating the wastewater treatment process. The water pump 45 transports the wastewater in the coagulation tank 41 to the filter port 32, realizing the directional transportation of wastewater. Motor 1 461 drives the rotor 482 to rotate, providing a power source for the rotor 482. Motor 2 462 drives the mixer 44 to rotate, ensuring the normal operation of the mixer 44. The equalization tank 481 stores wastewater generated at different times, balancing the wastewater quality and quantity. The tank cover 483 covers the opening of the equalization tank 481 to prevent external pollutants from entering the equalization tank 481. The rotor 482 rotates to fully mix the wastewater, improving its homogeneity. The filter 471 has a filter element 472 that is slidably connected inside. The filter element 472 initially filters large particles in the wastewater, reducing the burden of subsequent treatment. The connecting seat 473 provides a connection interface for external pipes, facilitating the introduction of wastewater into the filter 471. The neutralization tank 491 contains wastewater and neutralizing agents, providing a place for acid-base neutralization reactions. The dosing port 492 allows the neutralizing agents to be added to the neutralization tank 491.
[0021] Working principle: The wastewater from the production of furoic acid to be treated is introduced into the filter 471 through the connector 473. The wastewater enters the filter element 472 inside the filter 471. After the filter element 472 filters out large particles, it flows into the regulating tank 481. Start motor 461, which drives rotor 482 to rotate. The rotation of rotor 482 fully mixes the wastewater generated at different times in regulating tank 481, balancing the wastewater quality and quantity. Then, the regulated wastewater is transported to neutralization tank 491. Neutralizing agent is added to neutralization tank 491 through dosing port 492. The wastewater and neutralizing agent complete acid-base neutralization in neutralization tank 491. The neutralized wastewater is then transported to coagulation tank 41. Coagulant is added to coagulation tank 41 through adding port 43. Start motor 462, which drives mixer 44 to rotate. Mixer 44 mixes the wastewater and coagulant thoroughly, causing the soluble substances in the wastewater to turn into suspended solids. The mixed wastewater is then pumped to filter port 32 by water pump 45. After being filtered by filter screen 33 to remove larger suspended solids, the wastewater enters sedimentation tank 31. After entering sedimentation tank 31, the wastewater flows into settling plate 36 under the guidance of guide plate 35. The suspended solids settle on the surface of settling plate 36 due to gravity. The settled suspended solids fall to the bottom of sedimentation tank 31, and the clarified wastewater is discharged from outlet 34. If the filter screen 33 becomes clogged, it can be pulled out from the filter port 32 for cleaning by sliding the slide bar 371 in the slide groove 372. When the sludge settled at the bottom of the sedimentation tank 31 needs to be cleaned, the telescopic rod 383 is controlled to extend and retract. The telescopic rod 383 drives the moving seat 385 to move. The moving seat 385 drives the opening and closing plate 382 to rotate around the rotating shaft 381, so that the sludge is discharged and the pretreatment of furoic acid production wastewater is completed.
[0022] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A wastewater pretreatment device for furoic acid production, comprising a workbench (1), characterized in that: The top rear side of the workbench (1) is fixedly connected to a frame (2), and a sedimentation mechanism (3) is provided on the top left side of the workbench (1). The sedimentation mechanism (3) is used to remove large suspended solids and enhance the sedimentation effect. A coagulation mechanism (4) is provided on the front side of the frame (2). The coagulation mechanism (4) is used to adjust, neutralize and coagulate wastewater. The sedimentation mechanism (3) includes a sedimentation tank (31), the bottom of which is fixedly connected to the top left side of the workbench (1). A filter port (32) is fixedly connected to the top rear side of the sedimentation tank (31). A filter screen (33) is slidably connected to the inner side of the filter port (32). An outlet (34) is fixedly connected to the front side of the sedimentation tank (31). Multiple guide plates (35) are fixedly connected to the inner side of the sedimentation tank (31). A settling plate (36) is fixedly connected to the bottom of each of the multiple guide plates (35). Sliding components (37) are provided at the top and bottom of the filter screen (33). An opening and closing component (38) is provided at the bottom of the sedimentation tank (31).
2. The wastewater pretreatment equipment for furoic acid production according to claim 1, characterized in that: The coagulation mechanism (4) includes a coagulation tank (41), the bottom of which is fixedly connected to the top of the frame (2), a top cover (42) is fixedly connected to the top of the coagulation tank (41), an additive port (43) is fixedly connected to the rear side of the top of the top of the top cover (42), a mixer (44) is rotatably connected to the bottom of the top cover (42), a water pump (45) is fixedly connected to the bottom left side of the coagulation tank (41), a drive assembly (46) is provided on the top of the top of the top of the top of the top of the workbench (1), an adjustment assembly (48) is provided on the front side of the top of the adjustment assembly (48), a filter assembly (47) is provided on the top of the adjustment assembly (48), and a neutralization assembly (49) is provided on the rear side of the adjustment assembly (48).
3. The wastewater pretreatment equipment for furoic acid production according to claim 1, characterized in that: The sliding assembly (37) includes two slide bars (371), which are fixedly connected to the top and bottom of the filter screen (33) respectively. The filter port (32) has a groove (372) on its inner top and inner bottom.
4. The wastewater pretreatment equipment for furoic acid production according to claim 1, characterized in that: The opening and closing assembly (38) includes a rotating shaft (381), the front and rear ends of which are rotatably connected to the bottom of the sedimentation tank (31). An opening and closing plate (382) is fixedly connected to the right side of the rotating shaft (381). Movable seats (385) are fixedly connected to the front and rear sides of the bottom of the opening and closing plate (382). Two fixed seats (384) are fixedly connected to the top left side of the workbench (1). Telescopic rods (383) are rotatably connected to the inner sides of the two fixed seats (384).
5. The wastewater pretreatment equipment for furoic acid production according to claim 2, characterized in that: The adjustment assembly (48) includes an adjustment tank (481), the bottom of which is fixedly connected to the front right side of the top of the workbench (1), and a lid (483) is fixedly connected to the top of the adjustment tank (481), and a rotor (482) is rotatably connected to the bottom of the lid (483).
6. The wastewater pretreatment equipment for furoic acid production according to claim 5, characterized in that: The drive assembly (46) includes a motor (461), the bottom of which is fixedly connected to the top of the can lid (483), and a motor (462) is fixedly connected to the top of the can lid (42).
7. The wastewater pretreatment equipment for furoic acid production according to claim 5, characterized in that: The filter assembly (47) includes a filter (471), the bottom of which is fixedly connected to the top of the can lid (483), a filter element (472) is slidably connected inside the filter (471), and a connecting seat (473) is fixedly connected to the top of the filter (471).
8. The wastewater pretreatment equipment for furoic acid production according to claim 5, characterized in that: The neutralization component (49) includes a neutralization tank (491), the front side of which is fixedly connected to the rear side of the regulating tank (481), and the top of the neutralization tank (491) is fixedly connected to a dosing port (492).