Sewage COD (Chemical Oxygen Demand) treatment device

Abstract

The utility model relates to a sewage COD (Chemical Oxygen Demand) treatment device which comprises a sewage treatment tank, and further comprises two movable track assemblies which are symmetrically arranged on opposite side walls of the sewage treatment tank and comprise slide rails and racks which are arranged on the side walls of the sewage treatment tank in a step shape; and moving the stirring mechanism. According to the sewage COD treatment device, the movable stirring mechanism is arranged on the sewage treatment tank, the characteristic that the sewage treatment tank is large in water storage capacity is actually utilized, the sewage treatment capacity is improved, meanwhile, the sewage treatment tank is comprehensively stirred through the movable stirring mechanism walking on the sewage treatment tank, and in addition, the sewage COD treatment device is convenient to use. The multiple stirring assemblies capable of rotating reversely are arranged on the movable stirring mechanism, so that a single one-way vortex is effectively prevented from being formed in a single position, crystallization nuclei are prevented from being concentrated in the center position, and the treatment effect is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a sewage COD treatment device. Background Art

[0002] With the acceleration of industrialization and the development of social economy, the content of organic pollutants in industrial wastewater and domestic sewage has increased year by year, which has caused great pressure on the water environment. Chemical oxygen demand (COD), as one of the important indicators to measure the degree of organic pollution in water bodies, occupies an extremely important position in water quality monitoring and evaluation. Reducing the COD content in wastewater is a key step to achieve sustainable utilization of water resources.

[0003] High-salt, high-COD wastewater usually contains a large amount of metal ions, acid ions, and various organic substances such as alcohols, aldehydes, organic acids, and soluble aromatic compounds. This type of wastewater is difficult to treat, especially for the difficult-to-degrade organic substances. Currently, the main method for treating this type of wastewater is evaporation, concentration, and crystallization. This method evaporates water by heating, thereby concentrating the organic matter and other impurities in the wastewater, and finally separating them by crystallization. Most existing wastewater treatment devices use unidirectional stirring to improve evaporation efficiency. However, since the density of organic matter in wastewater is different from that of water, unidirectional stirring easily causes vortexes to form in the wastewater, causing the crystallization nuclei to be concentrated in the center, while the peripheral area has a higher organic matter concentration. This uneven concentration distribution is not conducive to the evaporation and crystallization process. For this reason, a wastewater COD treatment device is proposed. Utility Model Content

[0004] The utility model provides a sewage COD treatment device. By designing a movable stirring mechanism on the sewage treatment pool, the sewage treatment pool can be fully stirred. Moreover, by utilizing multiple stirring components that can rotate in opposite directions, the formation of a single unidirectional vortex at a single position is effectively avoided, and the concentration of crystallization nuclei in the central position is avoided, thereby effectively improving the treatment effect.

[0005] The technical solution of the utility model is as follows: A sewage COD treatment device includes a sewage treatment tank and also includes:

[0006] Two movable track assemblies are symmetrically arranged on opposite side walls of the sewage treatment tank, and include slide rails and racks arranged in a stepped manner on the side walls of the sewage treatment tank;

[0007] The mobile stirring mechanism includes a mobile frame, both ends of which are respectively provided with sliding blocks slidably connected to the slide rails. The mobile frame is also provided with a mobile walking mechanism connected to two rack transmissions, and multiple stirring components for stirring sewage, wherein the stirring components are transmission-connected to the mobile walking mechanism.

[0008] On the basis of the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, the movable frame includes a U-shaped frame and two extension plates arranged on the outside of the top of the U-shaped frame side wall, and the sliding block is arranged at the end of the extension plate, which forms a stepped frame body by combining the U-shaped frame and the two extension plates.

[0010] Furthermore, the mobile walking mechanism includes two transmission rods symmetrically arranged on two mobile frames through support bearings, and the separated ends of the two transmission rods are provided with walking gears meshing with the racks. The middle part of the U-shaped frame is provided with a driving mechanism consisting of a driving motor and a dual-output reducer, and the opposite ends of the two transmission rods are respectively connected to the two output ends of the dual-output reducer.

[0011] Furthermore, the stirring assembly includes a rotating bearing fixed on the U-shaped frame, a rotating rod is provided through the rotating bearing, a worm gear is fixed on the top of the rotating rod, and a plurality of stirring plates are provided outside and located below the U-shaped frame;

[0012] A worm meshing with a corresponding worm wheel is provided on the outside of the transmission rod.

[0013] Furthermore, the rotation directions of adjacent worm wheels are opposite.

[0014] Furthermore, it also includes:

[0015] The overflow tank is set at the edge of the sewage treatment tank and its height is lower than the height of the sewage treatment tank;

[0016] The water inlet tank is arranged outside the sewage treatment tank, and a connecting groove is provided at the bottom to connect the sewage treatment tank with the overflow tank;

[0017] The filter cover is arranged at the opening at the top of the overflow tank.

[0018] Furthermore, the filter cover is detachably arranged at the opening at the top of the overflow tank.

[0019] Furthermore, the filter cover plate includes a filter plate that is covered on the top of the overflow tank, and hooks that can be hooked on the side walls of the sewage treatment tank are provided on the tops of both sides of the filter plate.

[0020] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0021] 1. The sewage COD treatment device, by arranging a movable stirring mechanism on the sewage treatment pool, can take advantage of the large water storage capacity of the sewage treatment pool to increase the sewage treatment capacity. At the same time, the sewage treatment pool is fully stirred by the mobile stirring mechanism moving on it. By arranging multiple counter-rotating stirring components on the mobile stirring mechanism, the formation of a single unidirectional vortex at a single position is effectively avoided, and the concentration of crystallization nuclei in the central position is avoided, thereby effectively improving the treatment effect.

[0022] 2. The sewage COD treatment device, by arranging a detachable filter cover on the overflow tank, can utilize overflow water inlet to avoid clogging of the filter cover, and at the same time facilitates disassembly and cleaning of the filter cover from above. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the mobile stirring mechanism of the utility model;

[0025] Figure 3 for Figure 2 Structural diagram of the second perspective;

[0026] Figure 4 for Figure 2 A schematic diagram of the structure of the third perspective;

[0027] Figure 5 This is a schematic diagram of the explosion structure of the filter cover and overflow tank of the utility model;

[0028] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0029] 1. Sewage treatment tank; 101. Embedded groove; 102. Vertical rod; 103. Limit plate; 104. Rotary lock; 105. Slot; 2. Water inlet tank; 3. Overflow tank; 301. Connecting groove; 4. Filter cover; 401. Filter plate; 402. Hook; 403. Hanging ear; 5. Rack; 6. Slide rail; 7. Mobile stirring mechanism; 701. Moving frame; 7010. U-shaped frame; 7011. Extension plate; 702. Sliding block; 703. Mobile walking mechanism; 7030. Transmission rod; 7031. Support bearing; 7032. Travel gear; 7034. Drive motor; 7035. Dual-output reducer; 7036. Worm; 7040. Rotary bearing; 704. Stirring assembly; 7041. Rotating rod; 7042. Worm gear; 7043. Stirring plate. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0031] like Figure 1-4 As shown, a sewage COD treatment device in this embodiment includes a sewage treatment tank 1, an inlet tank 2, an overflow tank 3, a filter cover 4, a movable track assembly and a movable stirring mechanism 7, wherein the overflow tank 3 is arranged at the edge of the sewage treatment tank 1, and the height of the overflow tank 3 is lower than the height of the sewage treatment tank 1, so that the sewage can enter the sewage treatment tank 1 by overflow. The inlet tank 2 is arranged outside the sewage treatment tank 1 and is connected to the overflow tank 3. A connecting groove 301 that penetrates the sewage treatment tank 1 is provided between the bottom of the inlet tank 2 and the overflow tank 3. That is, a connecting groove 301 is provided at the bottom of the water inlet pool 2 to connect the sewage treatment pool 1 with the overflow pool 3. The sewage introduced into the water inlet pool 2 enters the overflow pool 3 through the connecting groove 301. A filter cover 4 is detachably provided at the top opening of the overflow pool 3 to filter impurities in the sewage. There are two movable track assemblies, which are symmetrically arranged on the opposite side walls of the sewage treatment pool 1. The movable stirring mechanism 7 is movably mounted on the two movable track assemblies, and the effect of fully stirring the sewage inside the sewage treatment pool 1 is achieved by moving on the movable track assembly.

[0032] During use, the sewage is introduced into the water inlet pool 2, and the sewage enters the overflow pool 3 through the connecting groove 301 between the water inlet pool 2 and the overflow pool 3. After being filtered by the filter cover plate 4 by overflow, it flows into the sewage treatment pool 1, and then the mobile stirring mechanism 7 is moved and stirred on the sewage treatment pool 1 to achieve the effect of comprehensively improving the evaporation efficiency, thereby efficiently completing the treatment work. The design of the overflow pool 3 can effectively prevent the filter cover plate 4 from being blocked, and at the same time facilitate the disassembly and assembly of the filter cover plate 4.

[0033] Furthermore, the movable track assembly includes a slide rail 6 and a rack 5 which are arranged in a stepped manner on the side wall of the sewage treatment tank 1 .

[0034] The mobile stirring mechanism 7 includes a mobile frame 701, and sliding blocks 702 are respectively provided at both ends of the mobile frame 701, which are slidably connected to the slide rail 6. The mobile frame 701 is also provided with a mobile walking mechanism 703 that is transmission-connected to the two racks 5, and multiple stirring components 704 for stirring sewage, wherein the stirring components 704 are transmission-connected to the mobile walking mechanism 703.

[0035] By arranging the slide rail 6 and the rack 5 in a stepped manner, the support of the slide rail 6 and the sliding block 702 can be utilized to effectively reduce the pressure of the mobile walking mechanism 703 walking on the rack 5, and at the same time effectively improve the stability of the movement. In addition, the stirring component 704 is connected to the mobile walking mechanism 703 through transmission, so that the stirring component 704 can rotate synchronously during the movement of the mobile walking mechanism 703, thereby stirring the sewage, and at the same time reducing the number of arranged driving mechanisms. In addition, the arrangement of multiple stirring components 704 can form multiple vortices, avoiding the formation of a single concentrated vortex.

[0036] Among them, the specific structure of the mobile frame 701 includes a U-shaped frame 7010 and two extension plates 7011 respectively arranged on the outside of the top of the side wall of the U-shaped frame 7010, and the sliding block 702 is arranged at the end of the extension plate 7011. The sliding block 702 is combined by the U-shaped frame 7010 and the two extension plates 7011 to form a stepped frame body, thereby meeting the fixing requirements of the mobile walking mechanism 703.

[0037] Furthermore, the mobile walking mechanism 703 specifically includes two transmission rods 7030 symmetrically arranged on the two mobile frames 701 through support bearings 7031, and the separated ends of the two transmission rods 7030 are provided with walking gears 7032 meshing with the rack 5. The middle part of the U-shaped frame 7010 is provided with a driving mechanism consisting of a driving motor 7034 and a dual-output reducer 7035. The opposite ends of the two transmission rods 7030 are respectively connected to the two output ends of the dual-output reducer 7035, so that the two walking gears 7032 rotate and walk on the two racks 5 respectively through the power of the driving motor 7034.

[0038] In addition, in this embodiment, there are two stirring components 704, specifically including a rotating bearing 7040 fixed on the U-shaped frame 7010, a rotating rod 7041 is provided through the rotating bearing 7040, a worm gear 7042 is fixed to the top of the rotating rod 7041, and a plurality of stirring plates 7043 are provided on the outside below the U-shaped frame 7010. In this embodiment, the number of stirring plates 7043 is six, and they are arranged in a ring with equal distances on the outside of the rotating rod 7041, and a worm 7036 meshing with the corresponding worm gear 7042 is provided on the outside of the transmission rod 7030.

[0039] During use, when the driving motor 7034 drives the traveling gear 7032 to travel on the rack 5 through the transmission rod 7030, the worm gear 7042 drives the corresponding worm 7036 to rotate, thereby causing the stirring plate 7043 to rotate in the sewage treatment tank 1, achieving a synchronous stirring effect.

[0040] Furthermore, the rotation directions of adjacent worm gears 7042 are opposite, so that the stirring assembly 704 can rotate in different directions, avoiding unidirectional rotation and further improving the stirring efficiency.

[0041] In another embodiment, in order to facilitate the disassembly and assembly of the filter cover 4, it specifically includes a filter plate 401 that is covered on the top of the overflow tank 3 to complete the sealing of its opening, and the tops of both sides of the filter plate 401 are provided with hooks 402 that can be hooked on the side walls of the sewage treatment tank 1, and the hooks 402 are provided with hanging ears 403 for easy lifting.

[0042] In order to further improve the locking of the filter cover 4, a locking assembly for locking the hook 402 is provided on the sewage treatment tank 1, which includes an embedded groove 101 arranged on the top of the side wall of the sewage treatment tank 1 and corresponding to the hook 402. When the filter cover 4 is installed, the hook 402 is embedded in the embedded groove 101, and its top is flush with the top of the side wall of the sewage treatment tank 1. Vertical rods 102 are provided on both sides of the embedded groove 101, and a rotary lock 104 is rotatably provided on the outside of one of the vertical rods 102. The other end of the rotary lock 104 is provided with a card slot 105, which corresponds to the other vertical rod 102. The tops of the two vertical rods 102 are fixed with limit plates 103.

[0043] When in use, the filter cover plate 4 can be locked or unlocked with the other vertical rod 102 by rotating the rotary lock 104 on one of the vertical rods 102 .

[0044] It should be noted that the length of the rotating lock 104 meets the spacing between the two vertical rods 102. A drainage pipe is provided at the bottom of the sewage treatment tank 1. In addition, a heating mechanism is provided on the sewage treatment tank 1. This is the existing technology in this field and will not be described in detail here.

[0045] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited to them. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. A sewage COD treatment device, comprising a sewage treatment tank (1), characterized in that: Also includes: Two movable track assemblies are symmetrically arranged on opposite side walls of the sewage treatment tank (1) and include slide rails (6) and racks (5) arranged in a stepped manner on the side walls of the sewage treatment tank (1); The mobile stirring mechanism (7) comprises a mobile frame (701), wherein both ends of the mobile frame (701) are respectively provided with sliding blocks (702) slidably connected to the slide rail (6), and the mobile frame (701) is further provided with a mobile walking mechanism (703) transmission-connected to the two racks (5), and a plurality of stirring components (704) for stirring sewage, wherein the stirring components (704) are transmission-connected to the mobile walking mechanism (703).

2. A sewage COD treatment device according to claim 1, characterized in that: The movable frame (701) comprises a U-shaped frame (7010) and two extension plates (7011) arranged on the outer sides of the top of the side walls of the U-shaped frame (7010); the sliding block (702) is arranged at the end of the extension plate (7011); and the U-shaped frame (7010) and the two extension plates (7011) are combined to form a stepped frame body.

3. A sewage COD treatment device according to claim 2, characterized in that: The mobile walking mechanism (703) includes two transmission rods (7030) symmetrically arranged on two mobile frames (701) through support bearings (7031), and the separated ends of the two transmission rods (7030) are each provided with a walking gear (7032) meshing with the rack (5). A driving mechanism consisting of a driving motor (7034) and a dual-output reducer (7035) is provided in the middle of the U-shaped frame (7010), and the opposite ends of the two transmission rods (7030) are respectively connected to the two output ends of the dual-output reducer (7035).

4. A sewage COD treatment device according to claim 3, characterized in that: The stirring assembly (704) comprises a rotating bearing (7040) fixed on a U-shaped frame (7010), a rotating rod (7041) passing through the rotating bearing (7040), a worm gear (7042) fixed at the top end of the rotating rod (7041), and a plurality of stirring plates (7043) located below the U-shaped frame (7010) are provided on the outside; The transmission rod (7030) is provided with a worm (7036) on the outside thereof, which is engaged with the corresponding worm wheel (7042).

5. A sewage COD treatment device according to claim 4, characterized in that: The adjacent worm wheels (7042) have opposite rotation directions.

6. A sewage COD treatment device according to any one of claims 1 to 5, characterized in that: Also includes: An overflow tank (3) is arranged at the edge of the sewage treatment tank (1) and has a height lower than that of the sewage treatment tank (1); The water inlet tank (2) is arranged outside the sewage treatment tank (1), and a connecting groove (301) is provided at the bottom thereof for connecting the sewage treatment tank (1) with the overflow tank (3); The filter cover plate (4) is arranged at the opening at the top of the overflow tank (3).

7. A sewage COD treatment device according to claim 6, characterized in that: The filter cover plate (4) is detachably arranged at the opening at the top of the overflow tank (3).

8. The sewage COD treatment device according to claim 7, characterized in that: The filter cover plate (4) comprises a filter plate (401) which is arranged on the top of the overflow tank (3), and hooks (402) which can be hooked on the side wall of the sewage treatment tank (1) are provided on the tops of both sides of the filter plate (401).

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