Comprehensive utilization device for wastewater treatment

Abstract

The utility model discloses a comprehensive utilization device for wastewater treatment, and relates to the technical field of wastewater treatment. The comprehensive utilization device for wastewater treatment comprises a filter tank, sedimentation tanks arranged on the two sides of the filter tank and an installation cavity arranged below the sedimentation tanks, filter screens are installed on the tank walls on the two sides of the filter tank, a liquid storage tank is installed at the upper ends of the sedimentation tanks, a plurality of stirring shafts are arranged below the liquid storage tank at equal intervals, and the stirring shafts are connected with the installation cavity. Stirring rods are arranged on the stirring shaft in a surrounding manner, the stirring rods and the stirring shaft are hollow, liquid communication is kept in the stirring rods and the stirring shaft, and through holes are fully distributed in the surfaces of the stirring rods and the stirring shaft. In order to overcome the defect that the flocculation effect is influenced by non-uniform distribution when a flocculating agent is added, a plurality of stirring shafts are arranged, and the flocculating agent flows out from the through holes and is injected into wastewater during stirring, so that the dispersing injection of the flocculating agent is realized, and the stirring is beneficial to the full contact of the wastewater and the flocculating agent.

Description

Technical Field

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

[0002] Industrial wastewater often contains a large amount of suspended solids and heavy metals. These substances are not easy to settle, and flocculants need to be added to help these substances aggregate into larger particles, thereby accelerating the sedimentation process.

[0003] In the prior art, a metering pump or other dosing equipment is often used to add the prepared flocculant into the wastewater at a fixed point, resulting in uneven distribution of the flocculant in the wastewater, so that the flocculant cannot fully contact the wastewater, thereby affecting the flocculation effect and treatment efficiency of the wastewater.

[0004] Therefore, in order to solve the defect that the flocculation effect is affected by the uneven distribution of flocculants when they are added, it is necessary to propose a comprehensive utilization device for wastewater treatment. Utility Model Content

[0005] The purpose of the utility model is to provide a wastewater treatment and comprehensive utilization device. By setting up multiple stirring shafts, when stirring, flocculant will flow out from the through holes and be injected into the wastewater, so as to achieve dispersed injection of the flocculant, and stirring is conducive to full contact between the wastewater and the flocculant, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A wastewater treatment and comprehensive utilization device comprises a filter tank, a sedimentation tank arranged on both sides of the filter tank, and an installation cavity arranged below the sedimentation tank, wherein filter screens are installed on both sides of the filter tank;

[0008] A liquid storage tank is installed at the upper end of the sedimentation tank, and a plurality of stirring shafts are equidistantly arranged below the liquid storage tank. A stirring rod is arranged around the stirring shaft. The stirring rod and the stirring shaft are hollow and liquid is kept in communication inside. The surfaces of the stirring rod and the stirring shaft are covered with through holes.

[0009] Preferably, the bottom of the sedimentation tank is deeper than that of the filtration tank and is inclined outward to form a landslide, and a collecting trough is provided at the end of the landslide.

[0010] Preferably, a collecting port is provided outside the filtering tank, a water outlet is provided outside the sedimentation tank, and a liquid inlet is provided outside the liquid storage tank.

[0011] Preferably, a liquid guide tube is installed at the lower end of the liquid storage tank, the bottom end of the liquid guide tube passes through the stirring shaft and extends to the inside of the stirring shaft, and the top of the stirring shaft is movably connected to the liquid guide tube.

[0012] Preferably, the bottom of the stirring shaft passes through the sedimentation tank and extends into the installation cavity, and a first bevel gear is installed at one end of the stirring shaft located in the installation cavity.

[0013] Preferably, a rotating shaft is movably installed in the installation cavity, one end of the rotating shaft is fixedly connected to a motor, and a second bevel gear meshing with the first bevel gear is fixedly installed on the rotating shaft.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] The wastewater treatment and comprehensive utilization device is provided with multiple stirring shafts so that the flocculant can flow out from the through holes on the surfaces of the stirring shafts and the stirring rods and be injected into the wastewater, thereby realizing the dispersed injection of the flocculant. When the stirring shafts stir, it helps to disperse the flocculant, thereby promoting full contact between the wastewater and the flocculant, accelerating the flocculation reaction, and thus improving the flocculation effect of the wastewater. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0017] Figure 2 This is a front view of the internal structure of the device of the utility model;

[0018] Figure 3 It is a left view of the internal structure of the device of the utility model.

[0019] In the figure: 1. filter tank; 11. collection port; 12. filter screen; 21. water outlet; 22. liquid storage tank; 221. liquid inlet; 222. liquid guide tube; 23. stirring shaft; 231. stirring rod; 232. first bevel gear; 24. collecting trough; 25. landslide; 2. sedimentation tank; 3. installation cavity; 31. rotating shaft; 32. second bevel gear; 33. motor. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-Figure 3 A wastewater treatment and comprehensive utilization device includes a filter tank 1, sedimentation tanks 2 arranged on both sides of the filter tank 1 and an installation cavity 3 arranged below the sedimentation tank 2. A collecting port 11 is opened outside the filter tank 1, a valve body is arranged at the collecting port 11, and filter screens 12 are installed on the pool walls on both sides of the filter tank 1.

[0022] Specifically, the collecting port 11 is used to introduce the collected wastewater into the filter tank 1. The function of the valve body at the collecting port 11 is to control the amount of wastewater introduced into the sedimentation tank 2 to prevent the surface of the wastewater from overflowing the filter screen 12. The filter screen 12 is set to pre-treat the wastewater and remove minerals, plastic fragments or metal fragments, etc. mixed in the wastewater.

[0023] See also Figure 2 A water outlet 21 is provided outside the sedimentation tank 2, and a valve body is installed at the water outlet 21. The bottom of the sedimentation tank 2 is deeper than the filtering tank 1, and is inclined outward to form a landslide 25. A collecting trough 24 is provided at the end of the landslide 25.

[0024] Specifically, the water outlet 21 is used to discharge clean water after sedimentation. The function of the valve body at the water outlet 21 is to prevent the wastewater from flowing out from the water outlet 21 without complete sedimentation, so as to ensure that the wastewater has enough sedimentation time. The setting of the landslide 25 helps the sediment in the wastewater to slide down the landslide 25 and fall into the collection tank 24 for collection.

[0025] To solve the technical problem of how to disperse and inject flocculants, please refer to Figure 1-Figure 3 , this embodiment provides the following technical solutions:

[0026] A liquid storage tank 22 is installed at the upper end of the sedimentation tank 2, and a liquid inlet 221 is opened on the outside of the liquid storage tank 22. A plurality of stirring shafts 23 are equidistantly arranged below the liquid storage tank 22. A stirring rod 231 is arranged around the stirring shaft 23. The stirring rod 231 and the stirring shaft 23 are both hollow and keep liquid in communication with each other. The surfaces of the stirring rod 231 and the stirring shaft 23 are covered with through holes.

[0027] A liquid guide tube 222 is installed at the lower end of the liquid storage tank 22 . The bottom end of the liquid guide tube 222 penetrates the stirring shaft 23 and extends to the inside of the stirring shaft 23 . The top of the stirring shaft 23 is movably connected to the liquid guide tube 222 .

[0028] Among them, valve bodies are installed at the liquid inlet 221 and the liquid guiding tube 222. The function of the valve body at the liquid inlet 221 is to prevent the flocculant from flowing out from the liquid inlet 221 when the liquid storage tank 22 is filled, and the function of the valve body at the liquid guiding tube 222 is to ensure that the flocculant can flow out from the three liquid guiding tubes 222.

[0029] Specifically, the flocculant is introduced into the liquid storage tank 22 through an external dosing device. After the liquid storage tank 22 is filled, the valve body at the liquid inlet 221 is closed, and then the valve bodies at the three liquid guide tubes 222 are opened, so that the flocculant can enter the three stirring shafts 23 along the liquid guide tubes 222. Since the stirring shaft 23 rotates, the flocculant in the stirring shaft 23 is affected by the centrifugal force and thrown into the stirring rod 231, and then flows out from the through holes on the surface of the stirring shaft 23 and the stirring rod 231, thereby realizing the dispersed injection of the flocculant.

[0030] For technical questions about how the agitator shaft rotates, see Figure 3 , this embodiment provides the following technical solutions:

[0031] The bottom of the stirring shaft 23 passes through the sedimentation tank 2 and extends into the installation cavity 3. A first bevel gear 232 is installed at one end of the stirring shaft 23 located in the installation cavity 3. A rotating shaft 31 is movably installed in the installation cavity 3. A motor 33 is fixedly connected to one end of the rotating shaft 31. A second bevel gear 32 meshing with the first bevel gear 232 is fixedly installed on the rotating shaft 31.

[0032] Specifically, start the motor 33, which drives the rotating shaft 31 to rotate. The rotating shaft 31 drives the second bevel gear 32 to rotate. The second bevel gear 32 then drives the first bevel gear 232 meshing therewith to rotate. The first bevel gear 232 then drives the stirring shaft 23 to rotate. Since the stirring shaft 23 is movably connected to the liquid guide tube 222, the rotation of the stirring shaft 23 can be achieved.

[0033] Working principle: When the wastewater treatment and comprehensive utilization device is used, the collected wastewater is first introduced into the filter tank 1 through the collection port 11, and the wastewater is filtered through the filter screen 12 and enters the sedimentation tank 2 until the surface of the wastewater overflows the stirring rod 231, and then the collection port 11 is closed by the valve body, and then the prepared flocculant is injected into the liquid storage tank 22 through the liquid inlet 221 until the inside of the liquid storage tank 22 is filled, and the liquid inlet 221 is closed by the valve body, and then the motor 33 is started, and the motor 33 drives the stirring shaft 23 to rotate, and then the valve body at the liquid guide tube 222 is opened, so that the flocculant can enter the stirring shaft 23 from the liquid guide tube 222, and is thrown into the stirring rod 231 under the action of centrifugal force, and finally flows out from the through holes on the surface of the stirring shaft 23 and the stirring rod 231, so as to realize the dispersed injection of the flocculant. After the injection is completed, the rotation of the stirring shaft 23 is maintained so that the flocculant can be stirred and fully contacted with the wastewater, thereby improving the flocculation effect.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wastewater treatment and comprehensive utilization device, comprising a filter tank (1), a sedimentation tank (2) arranged on both sides of the filter tank (1), and a mounting cavity (3) arranged below the sedimentation tank (2), characterized in that: Filter screens (12) are installed on both side walls of the filter pool (1); A liquid storage tank (22) is installed at the upper end of the sedimentation tank (2), and a plurality of stirring shafts (23) are equidistantly arranged below the liquid storage tank (22). A stirring rod (231) is arranged around the stirring shaft (23), and the stirring rod (231) and the stirring shaft (23) are both hollow and have liquid communication therein, and the surfaces of the stirring rod (231) and the stirring shaft (23) are covered with through holes.

2. A wastewater treatment and comprehensive utilization device according to claim 1, characterized in that: The bottom of the sedimentation tank (2) is deeper than that of the filtration tank (1) and is inclined outward to form a landslide (25). A collection trough (24) is provided at the end of the landslide (25).

3. A wastewater treatment and comprehensive utilization device according to claim 1, characterized in that: The filter tank (1) is provided with a collection port (11) on the outside, the sedimentation tank (2) is provided with a water outlet (21) on the outside, and the liquid storage tank (22) is provided with a liquid inlet (221) on the outside.

4. A wastewater treatment and comprehensive utilization device according to claim 1, characterized in that: A liquid guide tube (222) is installed at the lower end of the liquid storage tank (22); the bottom end of the liquid guide tube (222) penetrates the stirring shaft (23) and extends into the interior of the stirring shaft (23); the top of the stirring shaft (23) is movably connected to the liquid guide tube (222).

5. A wastewater treatment and comprehensive utilization device according to claim 4, characterized in that: The bottom of the stirring shaft (23) passes through the sedimentation tank (2) and extends into the installation cavity (3); a first bevel gear (232) is installed at one end of the stirring shaft (23) located in the installation cavity (3).

6. A wastewater treatment and comprehensive utilization device according to claim 5, characterized in that: A rotating shaft (31) is movably mounted in the mounting cavity (3), one end of the rotating shaft (31) is fixedly connected to a motor (33), and a second bevel gear (32) meshing with the first bevel gear (232) is fixedly mounted on the rotating shaft (31).

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