Efficient device for treating tannery wastewater
Patent Information
- Application Number
- CN202522358057.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-06
- Publication Date
- 2026-09-18
- Estimated Expiration
- 2035-11-06
AI Technical Summary
[0004]本实用新型的目的在于提供一种制革废水高效处理装置，以解决现有制革废水高效处理装置的曝气器在长时间使用后维护较为不便，严重影响制革废水处理效率的问题
本实用新型中，通过设置的输气部、波纹管、曝气器、电动推杆和清洁部等结构，使输气部通过波纹管可以向曝气器供给气体，其中电动推杆通过中托架可以带动各个曝气器向上位移，而波纹管的设置使曝气器的上移仍然保持与输气部的连通，清洁部则可以对上移后的各曝气器进行维护清洁，实现了制革废水高效处理装置的曝气器在长时间使用后可以方便快捷的进行维护，避免因维护影响废水的处理效率，解决了现有制革废水高效处理装置的曝气器在长时间使用后维护较为不便，严重影响制革废水处理效率的问题。
Smart Images
Figure CN224768600U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wastewater treatment technology, specifically to a high-efficiency treatment device for leather tanning wastewater. Background Technology
[0002] Tannery wastewater typically first passes through a screen and grit chamber to remove coarse solids, then enters a coagulation sedimentation tank to remove suspended solids and heavy metals. Subsequently, it undergoes degradation of organic pollutants through a biological filter or activated sludge process, and finally passes through a secondary sedimentation tank to complete sludge-water separation. The remaining sludge after separation is sent to a sludge digestion tank, where anaerobic bacteria carry out hydrolysis, acidification, and methanation reactions in the anaerobic layer at the bottom 0-2m of the tank. In the aerobic layer at the bottom 2-6m of the tank, dissolved oxygen is provided by aerators, which allows aerobic bacteria to further oxidize residual organic matter and suppress odors. At the same time, rising bubbles drive sludge circulation, achieving sludge reduction and stabilization.
[0003] However, after long-term operation, the surface of the microporous aerators in the sludge digestion tank is easily blocked by CaCO3, Cr(OH)3 and hair in the tanning sludge, leading to increased aeration resistance and energy consumption. Since the aerators are all installed at the bottom of the tank, there are many of them, and the water depth is 4-6m. Each maintenance requires draining the tank water, interrupting the sludge circulation, and then manually entering the tank to disassemble, remove, clean and reinstall them one by one. The whole process requires a shutdown of 6-10 days. This is not only labor-intensive and has high safety risks, but also causes the subsequent sludge to be unable to be treated and the wastewater treatment system to be forced to shut down, which seriously affects the efficiency of tanning wastewater treatment. Therefore, in view of the above problems, a high-efficiency tanning wastewater treatment device is proposed. Utility Model Content
[0004] The purpose of this utility model is to provide a high-efficiency treatment device for tanning wastewater, so as to solve the problem that the aerator of the existing high-efficiency treatment device for tanning wastewater is inconvenient to maintain after long-term use, which seriously affects the treatment efficiency of tanning wastewater.
[0005] To achieve the above objectives, this utility model provides the following technical solution: A high-efficiency treatment device for tanning wastewater includes a digester tank. An air supply unit is installed inside the digester tank. The air supply unit includes a main pipe fixed to the lower inner wall of the digester tank. An air inlet pipe is fixedly connected to the upper side of the main pipe. Several branch pipes are fixedly connected to the right side of the main pipe. Several air supply pipes are fixedly connected to the upper side of each branch pipe. Corrugated pipes are fixedly connected to the upper side of each air supply pipe. Aerators are fixedly connected to the upper end of each corrugated pipe. A central support is installed on the outer side of each aerator. A cleaning unit is installed on the upper side of the digester tank. The cleaning unit includes a pair of frame plates located on the upper side of the central support, with a space between the pair of frame plates. An infusion plate shell is fixedly connected, and an infusion inlet pipe is fixedly connected to the front side of the infusion plate shell. A pair of synchronous roller frames arranged symmetrically on the left and right are rotatably connected between a pair of frame plates. A motor is fixedly connected to the left side of the front end face of the front frame plate. The end of the output shaft of the motor is fixedly connected to the front end of the left synchronous roller frame. A pair of synchronous belts arranged symmetrically front and back are sleeved on the outer side of the left and right synchronous roller frames. Several back-connecting plates arranged at equal intervals are fixedly connected to the outer side of the synchronous belts. A flexible brush is detachably connected to the side of the back-connecting plates away from the synchronous belts by bolts. A pair of support columns are fixedly connected to the back side of a pair of frame plates. The lower end of each support column is fixedly connected to the upper end face of the digester tank.
[0006] Preferably, the middle support includes an outer frame disposed on the upper side of the corrugated pipe, and a plurality of equidistantly arranged hoop frames are fixedly connected to the inner side of the outer frame. Each hoop frame consists of a sleeve and a connecting rod fixed between each sleeve. The sleeves of the hoop frame are all fixed to the outer side of the lower connector of the aerator. A middle connecting block is fixedly connected to both the front and rear sides of the outer frame. An electric push rod is fixedly connected to the back side of each pair of frame plates. The lower end of each electric push rod is fixedly connected to the upper end face of the middle connecting block.
[0007] Preferably, the lower end face of each of the branch pipes is fixedly connected to the lower inner wall of the digester tank, and the aerators are all set at the same height and are all located in the middle inner area of the digester tank.
[0008] Preferably, the flexible brushes are all disposed on the upper side of the aerator, and there is a gap between the flexible brushes and the digester tank. The lower side of the infusion plate shell is provided with a plurality of spray holes arranged at equal intervals, and the infusion plate shell is disposed on the upper side of the aerator.
[0009] Preferably, the synchronous roller frame consists of a rotating shaft and synchronous rollers fixed on the outer sides of both ends of the rotating shaft. The synchronous belts are all sleeved on the outer sides of the synchronous rollers of the synchronous roller frame, and the synchronous belts are all arranged on the front and rear sides of the nozzle of the infusion plate shell.
[0010] Compared with the prior art, the beneficial effects of this utility model are: In this invention, the structure including an air supply section, corrugated pipe, aerators, electric push rod, and cleaning section allows the air supply section to supply gas to the aerators via the corrugated pipe. The electric push rod, via a central bracket, can move each aerator upwards. The corrugated pipe ensures that the aerators remain connected to the air supply section during their upward movement. The cleaning section can maintain and clean the aerators after they have moved upwards. This invention enables convenient and quick maintenance of the aerators in the high-efficiency treatment device for tanning wastewater after prolonged use, avoiding any impact on wastewater treatment efficiency due to maintenance. It solves the problem that the maintenance of aerators in existing high-efficiency treatment devices for tanning wastewater is inconvenient after prolonged use, which seriously affects the treatment efficiency of tanning wastewater. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This utility model Figure 1 A schematic diagram of the cleaning section in the middle structure; Figure 3 This is a schematic diagram of the gas delivery section of this utility model; Figure 4 This is a schematic diagram of the bracket structure in this utility model; Figure 5 This is a schematic diagram of the cleaning part of this utility model; Figure 6 This is a schematic diagram of the structure of the infusion plate shell of this utility model; Figure 7 This is a schematic diagram of the structure of the synchronous roller frame of this utility model.
[0012] In the diagram: 1. Digester tank; 2. Gas supply section; 21. Main pipe; 22. Air inlet pipe; 23. Branch pipe; 24. Gas supply pipe; 3. Corrugated pipe; 4. Aerator; 5. Central support frame; 51. Outer frame; 52. Hoop; 53. Central connecting block; 6. Electric push rod; 7. Cleaning section; 71. Shelf plate; 72. Infusion plate shell; 73. Infusion pipe; 74. Synchronous roller frame; 75. Motor; 76. Synchronous belt; 77. Backing plate; 78. Flexible brush; 79. Support column. Detailed Implementation
[0013] 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.
[0014] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0015] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.
[0016] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.
[0017] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.
[0018] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.
[0019] Please see Figure 1-7 This utility model provides a technical solution: A high-efficiency treatment device for tanning wastewater includes a digester tank 1. An air supply section 2 is installed inside the digester tank 1. The air supply section 2 includes a main pipe 21 fixed to the lower inner wall of the digester tank 1. An air inlet pipe 22 is fixedly connected to the upper side of the main pipe 21. Several branch pipes 23 are fixedly connected to the right side of the main pipe 21. Several air supply pipes 24 are fixedly connected to the upper side of the branch pipes 23. Corrugated pipes 3 are fixedly connected to the upper side of each air supply pipe 24. Aerators 4 are fixedly connected to the upper end of each corrugated pipe 3. A central support frame 5 is installed on the outer side of each aerator 4. A cleaning section 7 is installed on the upper side of the digester tank 1. The cleaning section 7 includes a pair of frame plates 71 located on the upper side of the central support frame 5. The pair of frame plates 71 are fixedly connected... The device includes an infusion plate housing 72, with an infusion inlet pipe 73 fixedly connected to the front side of the infusion plate housing 72. A pair of synchronous roller frames 74 symmetrically arranged on the left and right sides are rotatably connected between a pair of frame plates 71. A motor 75 is fixedly connected to the left side of the front end face of the front frame plate 71. The end of the output shaft of the motor 75 is fixedly connected to the front end of the left synchronous roller frame 74. A pair of synchronous belts 76 symmetrically arranged on the front and back sides are sleeved on the outer side of the left and right synchronous roller frames 74. Several back-connecting plates 77 arranged at equal intervals are fixedly connected to the outer side of the synchronous belts 76. Flexible brushes 78 are detachably connected to the side of the back-connecting plates 77 away from the synchronous belts 76 by bolts. A pair of support columns 79 are fixedly connected to the back side of a pair of frame plates 71. The lower end of the support columns 79 is fixedly connected to the upper end face of the digester tank 1.
[0020] The central support 5 includes an outer frame 51 set on the upper side of the corrugated pipe 3. Several equidistantly arranged clamps 52 are fixedly connected to the inner side of the outer frame 51. Each clamp 52 consists of a sleeve and connecting rods fixed between the sleeves. The sleeves of the clamps 52 are all fixed to the outer side of the lower connector of the aerator 4. Central connecting blocks 53 are fixedly connected to both the front and rear sides of the outer frame 51. Electric push rods 6 are fixedly connected to the opposite sides of a pair of support plates 71. The lower ends of the electric push rods 6 are fixedly connected to the upper end face of the central connecting blocks 53. The central support 5 allows for the linkage of each aerator 4, and the electric push rods 6 can adjust the height of the aerator 4 through the central support 5. The lower end faces of the branch pipes 23 are all fixedly connected to the lower inner wall of the digester tank 1. All aerators 4 are set at the same height and are located in the inner middle area of the digester tank 1. This arrangement ensures that the upper area inside the digester tank 1 is suitable for aerobic bacteria to survive, while the lower area is suitable for anaerobic bacteria to survive. Flexible brushes 78 are all positioned above the aerators 4, with a gap between them and the digester tank 1. This arrangement ensures that the aerators 4 can only contact and be cleaned by the flexible brushes 78 when they move upwards away from the digester tank 1. The lower side of the infusion plate shell 72 has several equally spaced spray holes. The infusion plate shell 72 is positioned above the aerators 4. The synchronous roller frame 74 consists of a rotating shaft and synchronous rollers fixed to the outer sides of both ends of the rotating shaft. Synchronous belts 76 are all sleeved on the outer sides of the synchronous rollers of the synchronous roller frame 74. The synchronous belts 76 are all positioned on the front and rear sides of the spray holes of the infusion plate shell 72. This arrangement ensures that the downward spraying of liquid from the infusion plate shell 72 through the spray holes is not affected by the synchronous belts 76.
[0021] Workflow: The operation of the high-efficiency treatment device for tannery wastewater is as follows: Note 1: All electrical appliances used in this application are externally powered and centrally controlled via an external controller; Note 2: The air inlet pipe 22 must be connected to the external air supply pipeline beforehand, allowing the external air supply pipeline to continuously supply air to the air supply section 2. The gas then enters each corrugated pipe 3 and is distributed to each aerator 4 via the corrugated pipe 3. The aerator 4 evenly sprays air in the form of microbubbles, forming an oxygen-rich zone in the upper part of the digester tank 1, creating an aerobic environment suitable for the growth and metabolism of aerobic bacteria, while maintaining an oxygen-deficient state in the lower part of the digester tank 1, forming... An anaerobic environment suitable for anaerobic bacteria activity is provided. In the anaerobic layer, anaerobic bacteria hydrolyze, acidify, and methanate the sludge. In the aerobic layer, aerobic bacteria utilize the dissolved oxygen provided by aerator 4 to further oxidize residual organic matter, while simultaneously inhibiting the generation of odorous substances. The rising airflow also drives sludge circulation, causing the sludge to repeatedly alternate between different oxidation-reduction zones, thereby achieving sludge reduction and stabilization. After prolonged use, aerator 4 will inevitably become clogged and requires cleaning. The specific operation is as follows: First, the electric push rod 6 is retracted via the external controller, causing the entire middle support frame 5 to move upwards. The upper part of the middle support frame 5... The movement of the aerators 4 will cause them to move upwards and detach from the digester tank 1. Simultaneously, the upward movement of the aerators 4 will pull the corrugated pipe 3, which is in a contracted state, upwards. At this time, the operator connects the external water supply pipeline to the inlet pipe 73, allowing water to be supplied to the inlet plate 72. Water is then sprayed downwards through the nozzles of the inlet plate 72. Simultaneously, the external controller starts the motor 75. The rotation of the motor 75's output shaft will drive the left synchronous roller frame 74 to rotate, thereby causing the outer synchronous belt 76 to circulate and move, thus driving the connected... Each backplate 77 and the flexible brush 78 fixed on the backplate 77 are cyclically displaced. This, combined with water spraying, cleans the aeration holes on the surface of each aerator 4 after it has moved upward. After cleaning, the operation is reversed, and the center bracket 5 and each aerator 4 are reset by the electric push rod 6. This allows the aerator 4 of the high-efficiency treatment device for tanning wastewater to be easily and quickly maintained after long-term use, avoiding the impact of maintenance on the wastewater treatment efficiency. This solves the problem that the maintenance of the aerator 4 in the existing high-efficiency treatment device for tanning wastewater is inconvenient after long-term use, which seriously affects the treatment efficiency of tanning wastewater.
[0022] 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 high-efficiency device for treating tannery wastewater, comprising a digestion tank box (1), characterized in that: An air supply section (2) is installed on the inner side of the digester tank (1). The air supply section (2) includes a main pipe (21) fixed to the lower inner wall of the digester tank (1). An air inlet pipe (22) is fixedly connected to the upper side of the main pipe (21). Several branch pipes (23) are fixedly connected to the right side of the main pipe (21). Several air supply pipes (24) are fixedly connected to the upper side of the branch pipes (23). Corrugated pipes (3) are fixedly connected to the upper side of each air supply pipe (24). Aerators (4) are fixedly connected to the upper end of each corrugated pipe (3). A middle bracket (5) is installed on the outer side of each aerator (4). A cleaning section (7) is installed on the upper side of the digester tank (1). The cleaning section (7) includes a pair of frame plates (71) located on the upper side of the middle bracket (5). An infusion plate shell is fixedly connected between the pair of frame plates (71). 72), the front side of the infusion plate shell (72) is fixedly connected to the infusion pipe (73) which is connected in a continuous manner. A pair of synchronous roller frames (74) are rotatably connected between the pair of frame plates (71) and are arranged symmetrically on the left and right. A motor (75) is fixedly connected to the left side of the front end face of the front frame plate (71). The end of the output shaft of the motor (75) is fixedly connected to the front end of the left synchronous roller frame (74). A pair of synchronous belts (76) are symmetrically arranged on the outside of the left and right synchronous roller frames (74). Several back-connecting plates (77) are fixedly connected to the outside of the synchronous belts (76) and are arranged at equal intervals. A flexible brush (78) is detachably connected to the side of the back-connecting plate (77) away from the synchronous belt (76) by bolts. A pair of supporting columns (79) are fixedly connected to the back side of the pair of frame plates (71). The lower end of the supporting column (79) is fixedly connected to the upper end face of the digestion tank (1).
2. The device for efficient treatment of tannery effluent as claimed in claim 1 wherein: The middle bracket (5) includes an outer frame (51) set on the upper side of the corrugated pipe (3). Several hoop frames (52) arranged at equal intervals are fixedly connected to the inner side of the outer frame (51). The hoop frame (52) consists of a sleeve and a connecting rod fixed between each sleeve. The sleeves of the hoop frame (52) are all fixed to the outer side of the lower connector of the aerator (4). The front and rear sides of the outer frame (51) are fixedly connected to the middle connecting block (53). A pair of the frame plates (71) are fixedly connected to the back side of each other. An electric push rod (6) is fixedly connected to each other. The lower end of the electric push rod (6) is fixedly connected to the upper end face of the middle connecting block (53).
3. The high-efficiency treatment device for tanning wastewater according to claim 2, characterized in that: The lower end face of each of the branch pipes (23) is fixedly connected to the lower inner wall of the digester tank (1). All the aerators (4) are set at the same height and are located in the middle inner area of the digester tank (1).
4. The efficient tannery effluent treatment device as claimed in claim 2, wherein: The flexible brushes (78) are all located on the upper side of the aerator (4). There is a gap between the flexible brushes (78) and the digester tank (1). The lower side of the infusion plate shell (72) is provided with several spray holes arranged at equal intervals. The infusion plate shell (72) is located on the upper side of the aerator (4).
5. The efficient tannery effluent treatment device as claimed in claim 2, wherein: The synchronous roller frame (74) consists of a rotating shaft and synchronous rollers fixed on the outer sides of both ends of the rotating shaft. The synchronous belts (76) are all sleeved on the outer side of the synchronous rollers of the synchronous roller frame (74). The synchronous belts (76) are all set on the front and rear sides of the nozzle of the infusion plate shell (72).