A wastewater collection device for benzoic acid production
By employing the reciprocating motion of the filter box and the L-shaped clamping plate design, the problems of low filtration efficiency and inconvenient disassembly of benzoic acid production wastewater are solved, achieving efficient filtration and convenient maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN JUNENG BIO-PHARM CO LTD
- Filing Date
- 2025-08-22
- Publication Date
- 2026-07-17
AI Technical Summary
Existing wastewater collection devices for benzoic acid production have low filtration efficiency and inconvenient filter plate installation and disassembly, resulting in difficulty in fully filtering solid impurities and cumbersome maintenance and operation.
The filter box features a reciprocating motion and an L-shaped clamp and handle design, ensuring uniform contact between wastewater and the filter plate. The L-shaped clamp also facilitates easy installation and removal of the filter plate.
It improves wastewater filtration efficiency, simplifies the installation and disassembly process of filter plates, and reduces equipment maintenance costs and difficulty.
Smart Images

Figure CN224506443U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of benzoic acid production technology, specifically a wastewater collection device for benzoic acid production. Background Technology
[0002] Benzoic acid is an important organic chemical raw material, widely used in food preservatives, pharmaceutical intermediates, dye synthesis and other fields. At present, the main industrial methods for producing benzoic acid are toluene oxidation and phthalic anhydride hydrolysis decarboxylation. Among them, toluene oxidation has become the mainstream due to the availability of raw materials and the simplicity of the process. However, a certain amount of wastewater is generated during the production of benzoic acid.
[0003] However, the following problems were found in the implementation of the relevant technologies:
[0004] In existing wastewater collection devices for benzoic acid production, most filter boxes are usually fixed, resulting in uneven contact between wastewater and filter plates, which can easily lead to local accumulation or short circuits. Solid impurities are difficult to filter out, resulting in low filtration efficiency. Furthermore, the filter plates are usually inconvenient to install and disassemble, and often use complex fixed structures, making maintenance cumbersome, time-consuming, labor-intensive, and increasing equipment maintenance costs and difficulty. Utility Model Content
[0005] To address the problems mentioned in the background section, this invention provides a wastewater collection device for benzoic acid production, which features efficient filtration and convenient maintenance. This invention solves the problems of uneven wastewater filtration and low efficiency through the reciprocating motion of the filter box; and solves the problem of inconvenient disassembly and maintenance of the filter plate through the L-shaped clamping plate and handle design.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a wastewater collection device for benzoic acid production, comprising a support frame, a collection hopper fixedly disposed within the support frame, a guide frame fixedly disposed on the lower surface of the collection hopper, an L-shaped base plate disposed on one side of the support frame, a side support plate fixedly disposed on one side of the L-shaped base plate, a filter box slidably disposed on the upper side of the L-shaped base plate, and a filter plate being fitted inside the filter box, the filter box being located at the lower part of one side of the guide frame, and an outlet pipe disposed on one side of the filter box.
[0007] Preferably, a half-face gear is rotatably provided on the upper surface of the side support plate, a support block is fixedly provided on the upper surface of the side support plate, a motor is fixedly provided on the upper surface of the support block, and the output end of the motor passes through the support block and is fixedly connected to the half-face gear. A circulation component is slidably provided on the upper surface of the side support plate, and toothed plates are symmetrically fixed inside the circulation component, and the toothed plates are meshed with the half-face gear.
[0008] Preferably, a connecting column is fixedly provided on one side of the circulation component, and a vertical plate is fixedly provided at the outer end of the connecting column, and the outer side of the vertical plate is fixedly connected to the filter box.
[0009] Preferably, a limiting block is fixedly provided on the upper surface of the side support plate, and the circulating component is engaged in the limiting block.
[0010] Preferably, the upper surface of the guide frame is provided with a guide groove.
[0011] Preferably, the upper surface of the L-shaped base plate is symmetrically fixed with limiting frames, and the filter box is clamped between the two limiting frames.
[0012] Preferably, an L-shaped clamping plate is fixedly provided on one side of the upper surface of the filter plate, and the L-shaped clamping plate is clamped on the filter box.
[0013] Preferably, a handle is fixedly provided on the upper surface of the L-shaped card plate.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] 1. This utility model uses the reciprocating motion of the filter box to make the contact between wastewater and the filter plate more sufficient and uniform, avoiding the situation of wastewater locally accumulating or short-circuiting in the filter box, thereby more effectively removing solid impurities in wastewater and improving filtration efficiency.
[0016] 2. The filter plate of this utility model is fixed on the filter box by an L-shaped clamp. The L-shaped clamp is also equipped with a handle. This design makes the installation and removal of the filter plate very convenient. When the filter plate needs to be cleaned or replaced, simply hold the handle and lift the L-shaped clamp upward to remove the filter plate from the filter box, which greatly improves the maintenance convenience of the equipment. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is an exploded cross-sectional view of the collection hopper and guide frame of this utility model;
[0019] Figure 3 This is a schematic diagram of the side support plate structure of this utility model;
[0020] Figure 4 This is a cross-sectional view and exploded view of the filter box and related structures of this utility model.
[0021] In the diagram: 1. Support frame; 2. Collection hopper; 21. Guide frame; 22. Guide chute; 3. L-shaped base plate; 31. Side support plate; 32. Half-gear; 33. Support block; 34. Motor; 35. Circulation component; 36. Gear plate; 37. Connecting column; 38. Vertical plate; 39. Limiting block; 4. Filter box; 41. Water outlet pipe; 42. Filter plate; 43. L-shaped clamping plate; 44. Handle; 45. Limiting frame. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.
[0023] like Figures 1 to 4 As shown, this utility model provides a wastewater collection device for benzoic acid production, including a support 1, a collection hopper 2 fixedly installed inside the support 1, a guide frame 21 fixedly installed on the lower surface of the collection hopper 2, a guide groove 22 opened on the upper surface of the guide frame 21, an L-shaped base plate 3 installed on one side of the support 1, a side support plate 31 fixedly installed on one side of the L-shaped base plate 3, a filter box 4 slidably installed on the upper side of the L-shaped base plate 3, and a filter plate 42 clamped inside the filter box 4. The filter box 4 is located at the lower part of one side of the guide frame 21, and a water outlet pipe 41 is provided on one side of the filter box 4. The wastewater generated during the benzoic acid production process will first flow into the collection hopper 2. Since the guide groove 22 is opened on the guide frame 21, the wastewater can accurately flow to the filter box 4 under the guidance of the guide groove 22. After the wastewater enters the filter box 4, the filter plate 42 will intercept the larger solid impurities in the wastewater to achieve preliminary filtration. The filtered wastewater is discharged through the water outlet pipe 41.
[0024] Specifically, a half-face gear 32 is rotatably mounted on the upper surface of the side support plate 31, a support block 33 is fixedly mounted on the upper surface of the side support plate 31, a motor 34 is fixedly mounted on the upper surface of the support block 33, and the output end of the motor 34 passes through the support block 33 and is fixedly connected to the half-face gear 32. A circulating component 35 is slidably mounted on the upper surface of the side support plate 31, and a toothed plate 36 is symmetrically fixed inside the circulating component 35. The toothed plate 36 is meshed with the half-face gear 32. After the motor 34 is started, its output end drives the half-face gear 32 to rotate. When the half-face gear 32 meshes with the toothed plate 36, it pushes the circulating component 35 to slide on the side support plate 31. When the half-face gear 32 disengages from the toothed plate 36, the circulating component 35 will slide in the opposite direction under the action of inertia or other reset mechanisms, thereby making the circulating component 35 reciprocate.
[0025] Furthermore, a connecting post 37 is fixedly provided on one side of the circulation component 35, and a vertical plate 38 is fixedly provided at the outer end of the connecting post 37. The outer side of the vertical plate 38 is fixedly connected to the filter box 4. Since the circulation component 35 is connected to the vertical plate 38 through the connecting post 37, and the vertical plate 38 is fixed to the filter box 4, the reciprocating motion of the circulation component 35 can drive the filter box 4 to reciprocate on the L-shaped base plate 3.
[0026] Furthermore, a limiting block 39 is fixedly provided on the upper surface of the side support plate 31, and the circulation component 35 is locked in the limiting block 39. A limiting frame 45 is symmetrically fixed on the upper surface of the L-shaped base plate 3, and the filter box 4 is locked between the two limiting frames 45. The limiting frame 45 on the L-shaped base plate 3 and the limiting block 39 on the side support plate 31 limit the movement range of the filter box 4 and the circulation component 35, ensuring that each component moves on the specified track, preventing the device from deviating or jamming during operation, and ensuring the normal operation of the device.
[0027] It is worth mentioning that an L-shaped clamping plate 43 is fixedly provided on one side of the upper surface of the filter plate 42, and the L-shaped clamping plate 43 is clamped on the filter box 4. A handle 44 is fixedly provided on the upper surface of the L-shaped clamping plate 43. The filter plate 42 is clamped on the filter box 4 by the L-shaped clamping plate 43. The handle 44 is also provided on the L-shaped clamping plate 43. This design makes the installation and removal of the filter plate 42 very convenient. When the filter plate 42 needs to be cleaned or replaced, simply hold the handle 44 and lift the L-shaped clamping plate 43 upwards to remove the filter plate 42 from the filter box 4, which greatly improves the maintenance convenience of the equipment.
[0028] Among them, motor 34 is existing technology and will not be described in detail; at the same time, this utility model also includes a power supply, controller and switch, etc., which are not the main technical points of this patent and will not be described in detail; the "front, back, left and right" perspectives of this device are as follows: Figure 1 The direction shown in the diagram is the reference.
[0029] Working principle: Wastewater generated during the production of benzoic acid first flows into the collection hopper 2. Since the guide frame 21 is provided with a guide chute 22, the wastewater can flow accurately to the filter box 4 under the guidance of the guide chute 22. After the wastewater enters the filter box 4, the filter plate 42 will intercept the larger solid impurities in the wastewater to achieve preliminary filtration. The filtered wastewater is discharged through the outlet pipe 41.
[0030] After the motor 34 starts, its output end drives the half-face gear 32 to rotate. When the half-face gear 32 meshes with the toothed plate 36, it will push the circulation component 35 to slide on the side support plate 31. When the half-face gear 32 disengages from the toothed plate 36, the circulation component 35 will slide in the opposite direction under the action of inertia or other reset mechanism, so that the circulation component 35 will reciprocate. Since the circulation component 35 is connected to the vertical plate 38 through the connecting column 37, and the vertical plate 38 is fixed to the filter box 4, the reciprocating motion of the circulation component 35 can drive the filter box 4 to reciprocate on the L-shaped base plate 3.
[0031] During the reciprocating sliding process of the filter box 4, on the one hand, the wastewater can contact the filter plate 42 more evenly, improving the filtration effect; on the other hand, the filter plate 42 may vibrate during the movement, which helps to prevent solid impurities from clogging the pores of the filter plate 42 and maintain smooth filtration.
[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A benzoic acid production wastewater collecting device comprising a support (1), characterized in that: The bracket (1) is fixedly provided with a collection hopper (2), and a guide frame (21) is fixedly provided on the lower surface of the collection hopper (2). An L-shaped base plate (3) is provided on one side of the bracket (1), and a side support plate (31) is fixedly provided on one side of the L-shaped base plate (3). A filter box (4) is slidably provided on the upper side of the L-shaped base plate (3), and a filter plate (42) is installed inside the filter box (4). The filter box (4) is located at the lower part of one side of the guide frame (21), and a water outlet pipe (41) is provided on one side of the filter box (4).
2. The waste water collecting device for benzoic acid production according to claim 1, characterized in that: The upper surface of the side support plate (31) is rotatably provided with a half-face gear (32), the upper surface of the side support plate (31) is fixedly provided with a support block (33), the upper surface of the support block (33) is fixedly provided with a motor (34), and the output end of the motor (34) passes through the support block (33) and is fixedly connected with the half-face gear (32). The upper surface of the side support plate (31) is slidably provided with a circulation component (35), and a toothed plate (36) is symmetrically fixed inside the circulation component (35), and the toothed plate (36) is meshed with the half-face gear (32).
3. The waste water collecting device for benzoic acid production according to claim 2, characterized in that: A connecting column (37) is fixedly provided on one side of the circulation component (35), and a vertical plate (38) is fixedly provided at the outer end of the connecting column (37). The outer side of the vertical plate (38) is fixedly connected to the filter box (4).
4. The waste water collecting device for benzoic acid production according to claim 2, characterized in that: The upper surface of the side support plate (31) is fixedly provided with a limiting block (39), and the circulation component (35) is locked in the limiting block (39).
5. The waste water collecting device for benzoic acid production according to claim 1, characterized in that: The upper surface of the guide frame (21) is provided with a guide groove (22).
6. The waste water collecting device for benzoic acid production according to claim 1, characterized in that: The upper surface of the L-shaped base plate (3) is symmetrically fixed with limiting frames (45), and the filter box (4) is locked between the two limiting frames (45).
7. The wastewater collection device for benzoic acid production according to claim 1, characterized in that: An L-shaped clamping plate (43) is fixedly provided on one side of the upper surface of the filter plate (42), and the L-shaped clamping plate (43) is clamped on the filter box (4).
8. The waste water collecting device for benzoic acid production according to claim 7, characterized in that: A handle (44) is fixedly provided on the upper surface of the L-shaped card plate (43).