Efficient aeration device for papermaking sewage

Abstract

The utility model relates to an efficient aeration device for papermaking sewage, which comprises a box body, a partition plate is arranged in the box body, a sealed space is formed at the bottom of the box body, a driving component is arranged in the sealed space, a rotating shaft is arranged in the center of the driving component, the rotating shaft vertically extends upwards, and the top end of the rotating shaft is movably connected with the inner top surface of the box body. A stirring rod and an aeration pipe are also arranged on the rotating shaft; a water inlet pipe is arranged at the top of the box body, and an air inlet pipe is arranged on the side wall of the bottom of the box body, penetrates through the side wall of the box body, extends into the sealed space and communicates with the interior of the driving assembly; the driving assembly is additionally arranged, so that the whole aeration equipment can flexibly rotate, the coverage range of the aeration equipment is greatly enlarged, the aeration effect is more efficient in cooperation with the stirring structure, meanwhile, an additional power source does not need to be arranged in the whole assembly, aeration can be completed only through high-pressure airflow, the use cost can be saved, and the aeration efficiency is improved. And moreover, the refitting difficulty is reduced, and the use is very convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of aeration equipment, in particular to a high-efficiency aeration device for papermaking wastewater. Background Art

[0002] With the continuous development of society, water scarcity is becoming increasingly serious, and water will become a major factor restricting social development. The recycling and utilization of water resources has become an increasingly important project, and wastewater aeration technology is an essential component. Aeration tanks utilize the activated sludge process to treat wastewater, providing a certain sewage retention time within the tank to meet the oxygen requirements of aerobic microorganisms and the mixing conditions for sufficient contact between sewage and activated sludge. Their purpose is to dissolve oxygen from the air into the water, or to release unwanted gases and volatile substances from the water into the air, thereby promoting the exchange of substances between gas and liquid.

[0003] The existing aeration equipment is fixed in position, and the coverage of each aeration head is limited, so it is easy to have aeration dead corners, resulting in poor aeration effect. Utility Model Content

[0004] Based on the above description, the utility model provides a high-efficiency aeration device for papermaking wastewater to solve the problems of existing aeration equipment being fixed in position, having limited coverage, and being prone to aeration dead corners.

[0005] The utility model is realized through the following technical solutions:

[0006] A high-efficiency aeration device for papermaking wastewater comprises a box body, a partition is provided inside the box body, and a sealed space is formed at the bottom of the box body, a drive assembly is provided inside the sealed space, a rotating shaft is provided at the center of the drive assembly, the rotating shaft extends vertically upward and the top end is movably connected to the inner top surface of the box body, and a stirring rod and an aeration pipe are also provided on the rotating shaft; a water inlet pipe is provided at the top of the box body, and an air inlet pipe is provided on the side wall of the bottom of the box body, the air inlet pipe extends through the side wall of the box body to the inside of the sealed space and is connected with the inside of the drive assembly.

[0007] On the basis of the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, a filter is provided inside the box, which is umbrella-shaped and has a through hole in the center. A ball bearing is provided in the through hole, the top surface of the box, and the center of the partition. The ball bearing is sleeved on the outer wall of the rotating shaft and has sealing gaskets on both sides.

[0009] Furthermore, a scraper is fixedly mounted on the outer side wall of the rotating shaft. The scraper is arranged as a whole to face downward and has bristles on the bottom surface. The bristles fit the surface of the filter screen.

[0010] Furthermore, a debris discharge port is provided on the side wall of the box body, and the debris discharge port is arranged to be tilted downward and the opening at the end is arranged just above the edge of the filter screen.

[0011] Furthermore, the drive assembly also includes a fixed seat, turbine blades and an air compressor, wherein the fixed seat is arranged at the center of the bottom surface of the partition, and the interior of the fixed seat is hollow, the bottom end of the rotating shaft extends downward and a distance is left between the bottom end surface and the inner bottom surface of the fixed seat, a plurality of turbine blades are provided and arranged around the outer wall of the bottom end of the rotating shaft, the air compressor is arranged on the outer wall of the box body and is interconnected with the air intake pipe, and the end of the air intake pipe extends inward into the fixed seat and the port of the air intake pipe is arranged just facing the turbine blade.

[0012] Furthermore, the aeration pipe is cross-shaped and has a plurality of aeration holes arranged at intervals on the top surface. The interior of the rotating shaft is hollow and communicated with the aeration pipe.

[0013] Furthermore, the box body is provided with a transparent strip, which is arranged on the front side of the box body and has marking scales engraved on the surface.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0015] 1. This application is based on the improvement of the existing aeration equipment. By adding a driving component, the entire aeration equipment can be flexibly rotated, which greatly improves the coverage of the aeration equipment. At the same time, no additional power source is required in the entire component, and only high-pressure airflow is required to complete it. It not only saves the use cost, but also reduces the difficulty of modification, and is very convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the structure of the box in this embodiment;

[0017] Figure 2 Schematic diagram of the internal structure of the box in this embodiment;

[0018] Figure 3 Schematic diagram of the internal structure of the fixing base in this embodiment;

[0019] Among them: 1. Box body; 11. Partition; 12. Water inlet pipe; 13. Air inlet pipe; 14. Exhaust port; 15. Transparent strip; 2. Drive assembly; 21. Fixed seat; 22. Turbine blades; 23. Air compressor; 24. Rotating shaft; 3. Filter; 31. Scraper; 4. Aeration pipe; 5. Agitator rod. DETAILED DESCRIPTION

[0020] To facilitate understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The accompanying drawings provide embodiments of the present application. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application.

[0022] Combine Figure 1-3 As shown, a high-efficiency aeration device for papermaking wastewater comprises:

[0023] The box body 1 is provided with a partition 11 inside the box body 1, and the partition 11 and the inner bottom surface of the box body 1 form an independent sealed space. The top of the box body 1 is provided with a water inlet pipe 12, the outer wall is provided with an air inlet pipe 13, an overflow port and a debris discharge port 14, and the bottom is also provided with a water outlet pipe;

[0024] The drive assembly 2 is arranged inside the sealed space and has a rotating shaft 24 at the center of its top surface. The rotating shaft 24 extends to the inside of the box body 1 and is provided with an aeration pipe 4 and a stirring rod 5 on the side wall, and the air inlet pipe 13 is connected to the aeration pipe 4 through the drive assembly 2.

[0025] Specifically; in the actual wastewater treatment process, since the wastewater contains a lot of impurities, some impurities are granular and large in size, and cannot be screened out by flotation filtration, they need to be filtered in advance.

[0026] Therefore, a filter screen 3 should also be provided inside the box body 1. The filter screen 3 adopts an umbrella-shaped structure and has a through hole at its center. The rotating shaft 24 is vertically inserted into the through hole, and its two ends are respectively connected to the center of the inner bottom surface and the center of the inner top surface of the box body 1.

[0027] In addition, ball bearings are used for auxiliary arrangement at the above connection parts, that is, the rotating shaft 24 is inserted into the center of the ball bearing so that it can rotate flexibly. At the same time, sealing gaskets are set on both sides to ensure the sealing inside the box body 1.

[0028] When sewage is injected into the box 1, large particles of impurities in the sewage will be intercepted by the filter 3, and some impurities will slide around along the inclined surface of the filter 3, but some impurities will still adhere to the surface of the filter 3 to prevent these impurities from clogging subsequent filtration.

[0029] In this embodiment, a scraper 31 is sleeved on the outer wall of the rotating shaft 24. The ends of the scraper 31 are divided into two halves, and a semicircular groove is provided in the middle of the ends of the two scrapers 31. The combination of the two scrapers 31 fits perfectly on the side wall of the rotating shaft 24 and is locked and fixed by bolts.

[0030] The scraper 31 is arranged as a whole with an inclination downward, and bristles are provided on the bottom surface. The bristles fit the surface of the filter 3. Therefore, when the rotating shaft 24 rotates, the bristles rotate and clean the surface of the filter 3, so that the debris on the surface slides along the inclined surface of the filter 3.

[0031] At the same time, in order to facilitate centralized recovery, a debris discharge port should be set on the side wall of the box body 1. The debris discharge port is located just above the edge of the filter screen 3. During the rotation process, the scraper 31 can also push impurities from other parts to the debris discharge port.

[0032] The drive assembly 2 also includes a fixed seat 21, turbine blades 22 and an air compressor 23, wherein the fixed seat 21 is arranged at the center of the bottom surface of the partition 11, and the interior of the fixed seat 21 is arranged as a hollow structure. The bottom end of the rotating shaft 24 extends downward to the interior of the fixed seat 21, and a gap is retained between the end face of its bottom end and the inner top surface of the fixed seat 21. The turbine blades 22 are arranged around the outer wall of the bottom end of the rotating shaft 24. The air compressor 23 is arranged on the outer wall of the box body 1 and is connected to the air intake pipe 13. The end of the air intake pipe 13 extends horizontally toward the interior of the box body 1 to the interior of the fixed seat 21, and the port is arranged just facing the turbine blades 22.

[0033] In addition, the interior of the rotating shaft 24 is configured to be hollow, the aeration pipe 4 is configured to be a cross-shaped structure, and a plurality of aeration holes are provided on the outer wall, and the rotating shaft 24 is connected to the center of the cross-shaped aeration pipe 4.

[0034] Combined with the structure of the above-mentioned drive assembly 2, in this embodiment, the air is pressurized by the air compressor 23 and discharged into the interior of the fixed seat 21, which can just drive the turbine blades 22 to rotate, thereby forming a power source, driving the entire rotating shaft 24 to rotate, and at the same time driving the aeration pipe 4, the stirring rod 5 and the scraper 31 to rotate synchronously, and the injected air will enter the interior of the rotating shaft 24 through the hole at the bottom of the rotating shaft 24, and finally be discharged into the interior of the box 1 through the aeration pipe 4.

[0035] The entire structure does not require an additional power source. It can not only realize aeration transportation, but also make full use of high-pressure air to drive the aeration pipe 4 to rotate, thereby increasing the coverage range. At the same time, the stirring rod 5 is used to disturb the wastewater inside the box 1, effectively improving the aeration purification effect. The overall modification based on the existing aeration purification equipment is simple and very convenient to use.

[0036] A transparent strip 15 is further provided on the outer side wall of the box body 1 , and the transparent strip 15 is used to facilitate the staff to observe the water level inside the box body 1 so as to adjust the aeration delivery volume and the wastewater delivery volume.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the technical solutions of the embodiments of the present invention.

Claims

1. A high-efficiency aeration device for papermaking wastewater, characterized in that: The invention comprises a box body (1), wherein a partition (11) is provided inside the box body (1) and a sealed space is formed at the bottom of the box body (1), wherein a driving assembly (2) is provided inside the sealed space, wherein a rotating shaft (24) is provided at the center of the driving assembly (2), wherein the rotating shaft (24) extends vertically upward and the top end is movably connected to the inner top surface of the box body (1), and wherein a stirring rod (5) and an aeration pipe (4) are also provided on the rotating shaft (24); wherein a water inlet pipe (12) is provided at the top of the box body (1), and an air inlet pipe (13) is provided on the side wall of the bottom of the box body (1), wherein the air inlet pipe (13) passes through the side wall of the box body (1) and extends into the sealed space and is in communication with the inside of the driving assembly (2).

2. The high-efficiency aeration device for papermaking wastewater according to claim 1, characterized in that: A filter screen (3) is further provided inside the housing (1). The filter screen (3) is umbrella-shaped and has a through hole at the center. A ball bearing is provided in the through hole, the top surface of the housing (1), and the center of the partition (11). The ball bearing is sleeved on the outer wall of the rotating shaft (24) and has sealing gaskets on both sides.

3. The high-efficiency aeration device for papermaking wastewater according to claim 2, characterized in that: A scraper (31) is fixedly mounted on the outer side wall of the rotating shaft (24). The scraper (31) is arranged as a whole to face downward and has bristles on the bottom surface. The bristles just fit the surface of the filter screen (3).

4. The high-efficiency aeration device for papermaking wastewater according to claim 3, characterized in that: A debris discharge port (14) is provided on the side wall of the box body (1), and the debris discharge port (14) is arranged to be tilted downward so that the opening at the end is located just above the edge of the filter screen (3).

5. The papermaking wastewater high-efficiency aeration device according to claim 1, characterized in that: The driving assembly (2) further comprises a fixed seat (21), turbine blades (22) and an air compressor (23), wherein the fixed seat (21) is arranged at the center of the bottom surface of the partition (11), and the interior of the fixed seat (21) is hollow, the bottom end of the rotating shaft (24) extends downward and a gap is left between the bottom end surface and the inner bottom surface of the fixed seat (21), a plurality of turbine blades (22) are arranged around the outer wall of the bottom end of the rotating shaft (24), the air compressor (23) is arranged on the outer wall of the box body (1) and is connected to the air intake pipe (13), and the end of the air intake pipe (13) extends inward into the fixed seat (21) and the port of the air intake pipe (13) is arranged just toward the turbine blade (22).

6. The high-efficiency aeration device for papermaking wastewater according to claim 5, characterized in that: The aeration pipe (4) is cross-shaped and has a plurality of aeration holes arranged at intervals on the top surface. The interior of the rotating shaft (24) is hollow and communicates with the aeration pipe (4).

7. The high-efficiency aeration device for papermaking wastewater according to claim 1, characterized in that: The box body (1) is further provided with a transparent strip (15), which is arranged on the front of the box body (1) and has marking scales engraved on the surface.

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