Stirrer for thermal power plant

Abstract

The utility model discloses a mixer for a thermal power plant, which comprises a communicating tank, the communicating tank comprises a first mixing part and a second mixing part, a communicating part is arranged between the first mixing part and the second mixing part, mixing shafts are arranged in the first mixing part and the second mixing part, and a driving piece is arranged at the top end of each mixing shaft. Stirring blades are fixed to the bottom end of the stirring shaft, one side of the top of the first stirring part is connected with a sewage draining exit, one side of the sewage draining exit is provided with a slag stirring mechanism, the first stirring part is connected with a water inlet pipe at the bottom of the sewage draining exit, an aerator is installed at the bottom end in the first stirring part, and the top of the second stirring part is connected with a water draining pipe. According to the sewage treatment device, the stirrer and the water treatment device are combined, so that the sewage of the thermal power plant can be continuously treated, and the water treatment efficiency of the thermal power plant is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of stirring equipment, and in particular relates to a stirring machine for a thermal power plant. Background Art

[0002] The agitator is one of the important equipment used to treat wastewater in thermal power plants. Its function is to ensure that the wastewater generated in the production process can be effectively degraded, meet environmental protection requirements, and reduce pollution to the environment. The wastewater treatment process requires the addition of some chemical agents, so a stirrer is needed to fully mix the agents with water to achieve the best treatment effect. In addition, the agitator can also promote the decomposition and oxidation reaction of organic pollutants in wastewater, improve the water quality of wastewater, and make it meet national environmental protection standards.

[0003] The wastewater of thermal power plants mainly contains organic waste, suspended matter, heavy metals and other substances, which need to be treated by the action of a stirrer. The principle of the stirrer is to generate a strong stirring force through high-speed rotating blades, so that the organic pollutants and suspended matter in the wastewater are dispersed and suspended on the water surface, which is convenient for subsequent treatment. At the same time, it can also make heavy metal ions react with reagents to form precipitates, effectively removing heavy metal pollutants in the wastewater. At present, one of the challenges faced by thermal power plants in wastewater treatment is that the equipment occupies a large area and the number of equipment is large, which corresponds to a relatively high capital investment. This situation not only increases the operating cost of thermal power plants, but also puts higher requirements on their environmental friendliness and sustainable development. Therefore, the utility model proposes a stirrer for thermal power plants, an integrated wastewater treatment equipment, which reduces the footprint and reduces the investment capital, can continuously treat the wastewater of thermal power plants, and improve the water treatment efficiency of thermal power plants.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mixer for a thermal power plant, comprising a connecting tank, the connecting tank comprising a first stirring part and a second stirring part, a connecting part is arranged between the first stirring part and the second stirring part, stirring shafts are arranged inside the first stirring part and the first stirring part, a driving member is installed at the top of the stirring shaft, a stirring blade is fixed at the bottom of the stirring shaft, a sewage outlet is connected to one side of the top of the first stirring part, a slag removal mechanism is arranged on one side of the sewage outlet, the first stirring part is located at the bottom of the sewage outlet and is connected to a water inlet pipe, an aerator is installed at the bottom end of the first stirring part, a drain pipe is connected to the top of the second stirring part, a reagent addition pipe is connected to the top of the connecting part, and a sewage pipe is connected to the bottom of the connecting part.

[0006] As a preferred technical solution of the present utility model, the first stirring part, the second stirring part and the connecting part are overall in a U-shaped structure.

[0007] As a preferred technical solution of the present invention, the height of the end of the second stirring portion is lower than the end of the first stirring portion.

[0008] As a preferred technical solution of the utility model, a filter screen is installed inside the second stirring part close to the bottom of the drain pipe, and the stirring shaft body is rotatably connected to the center of the filter screen.

[0009] As an optimal technical solution of the utility model, the slag removal mechanism includes a transmission shaft, which is symmetrically arranged and rotatably connected at both ends to the two sides of the top of the first stirring part. Sprockets are fixed at both ends of the transmission shaft, chains are installed on the sprockets, and slag removal plates are fixed on the chains.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model introduces wastewater from the thermal power plant into the connecting tank, first aerates the wastewater through the aerator, makes the suspended matter and the bubbles contact through the stirring structure, makes the suspended matter with higher density in the wastewater float up with the bubbles, forms scum or foam which is scraped off by the scraping mechanism, and then continues to add flocculant to the water, stirs it through the stirring structure, makes the heavy metals and fixed impurities in the wastewater quickly form aggregates and settle, thereby completing the water treatment. The utility model combines the agitator and the water treatment device to form an integrated wastewater treatment equipment, reduces the floor space, and can continuously treat the wastewater from the thermal power plant, thereby improving the water treatment efficiency of the thermal power plant. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0012] Figure 1 It is a schematic diagram of the cross-sectional structure of the connecting tank in the utility model;

[0013] Figure 2 It is an enlarged structural schematic diagram of A in the utility model;

[0014] In the figure: 1. connecting tank; 2. first stirring part; 3. second stirring part; 4. connecting part; 5. stirring shaft; 6. driving member; 7. stirring blade; 8. sewage outlet; 9. water inlet pipe; 10. aerator; 11. drainage pipe; 12. reagent adding pipe; 13. filter screen; 14. transmission shaft; 15. chain; 16. slag plate; 17. sprocket; 18. sewage pipe. DETAILED DESCRIPTION

[0015] 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. Example

[0016] See also Figure 1-2 The utility model provides the following technical solutions: a mixer for a thermal power plant, comprising a connecting tank 1, the connecting tank 1 comprising a first stirring part 2 and a second stirring part 3, a connecting part 4 is arranged between the first stirring part 2 and the second stirring part 3, a stirring shaft 5 is arranged inside the first stirring part 2 and the first stirring part 2, a driving member 6 is installed at the top of the stirring shaft 5, a stirring blade 7 is fixed at the bottom of the stirring shaft 5, a sewage outlet 8 is connected to one side of the top of the first stirring part 2, a slag removal mechanism is arranged on one side of the sewage outlet 8, the first stirring part 2 is connected to a water inlet pipe 9 at the bottom of the sewage outlet 8, an aerator 10 is installed at the bottom of the first stirring part 2, and the second stirring part 3 is provided with a stirring shaft 5. A drainage pipe 11 is connected to the top, a reagent addition pipe 12 is connected to the top of the connecting part 4, and a sewage pipe 18 is connected to the bottom of the connecting part 4. The first stirring part 2, the second stirring part 3 and the connecting part 4 are U-shaped as a whole. In this embodiment, the thermal power plant sewage is introduced into the connecting tank 1, and the sewage is first aerated by the aerator 10. The suspended matter and the bubbles are brought into contact by the stirring structure, so that the suspended matter with higher density in the sewage and the bubbles are combined and floated to form scum or foam, which is scraped off by the scraping mechanism, and then by continuing to add flocculant to the water and stirring it by the stirring structure, the heavy metals and fixed impurities in the sewage can quickly form aggregates and settle, thereby completing the water treatment.

[0017] In order to prevent the backflow of the inflowing water, in this embodiment, as a preferred technical solution of the utility model, the height of the end of the second stirring part 3 is lower than the end of the first stirring part 2.

[0018] In order to prevent some smaller impurities from following the water flow into the supernatant, in this embodiment, as a preferred technical solution of the utility model, a filter screen 13 is installed inside the second stirring part 3 close to the bottom of the drain pipe 11, and the stirring shaft 5 is rotatably connected to the center of the filter screen 13.

[0019] In order to facilitate automatic slag removal, in this embodiment, as a preferred technical solution of the utility model, the slag removal mechanism includes a transmission shaft 14, the transmission shaft 14 is symmetrically arranged, and both ends are rotatably connected to the two sides of the top of the first stirring part 2, and sprockets 17 are fixed at both ends of the transmission shaft 14, a chain 15 is installed on the sprocket 17, and a slag removal plate 16 is fixed on the chain 15.

[0020] In summary, with the aid of the above technical solution of the utility model, when in use, sewage is introduced into the first stirring part 2 of the connecting tank 1 from the water inlet pipe 9, and the aerator 10 at the bottom of the first stirring part 2 performs aeration treatment on the sewage. At the same time, the output of the driving member 6 drives the stirring shaft 5 to rotate, so that the stirring blades 7 stir the sewage, increase the contact area between the target pollutants in the sewage and the bubbles, and make them adhere. Through the buoyancy difference between the bubbles and the dissolved substances, the attached pollutants rise to the surface of the liquid to form scum or foam, and then the driving motor drives the transmission shaft 14 to rotate, and with the aid of the sprocket 17 and the chain 15, the slag plate 16 is driven to move horizontally, so that the scum is discharged from the sewage outlet 8, and the subsequent sewage enters the second stirring part 3 through the connecting part 4, and at the same time, the flocculant is introduced from the reagent addition pipe 12, and stirred and mixed in the second stirring part 3, so that the heavy metals and larger fixed particles in the sewage are condensed into larger aggregates with the aid of the flocculant for sedimentation, and finally discharged from the sewage pipe 18, and the supernatant is discharged from the drain pipe 11.

[0021] Finally, it should be noted that in the present utility model, unless otherwise clearly stipulated and limited, terms such as "installation", "setting", "connection", "fixation", and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0022] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A mixer for a thermal power plant, comprising a connecting tank (1), characterized in that: The connecting tank (1) comprises a first stirring part (2) and a second stirring part (3), a connecting part (4) is arranged between the first stirring part (2) and the second stirring part (3), a stirring shaft (5) is arranged inside the first stirring part (2) and the first stirring part (2), a driving member (6) is installed at the top end of the stirring shaft (5), a stirring blade (7) is fixed at the bottom end of the stirring shaft (5), a sewage outlet (8) is connected to one side of the top of the first stirring part (2), a slag removal mechanism is arranged on one side of the sewage outlet (8), a water inlet pipe (9) is connected to the bottom of the sewage outlet (8) of the first stirring part (2), an aerator (10) is installed at the bottom end of the first stirring part (2), a drainage pipe (11) is connected to the top of the second stirring part (3), a reagent addition pipe (12) is connected to the top of the connecting part (4), and a sewage outlet pipe (18) is connected to the bottom of the connecting part (4).

2. A mixer for a thermal power plant according to claim 1, characterized in that: The first stirring portion (2), the second stirring portion (3) and the connecting portion (4) are overall in a U-shaped structure.

3. A mixer for a thermal power plant according to claim 1, characterized in that: The height of the end of the second stirring portion (3) is lower than the end of the first stirring portion (2).

4. A mixer for a thermal power plant according to claim 1, characterized in that: A filter screen (13) is installed inside the second stirring portion (3) close to the bottom of the drain pipe (11), and the stirring shaft (5) is rotatably connected to the center of the filter screen (13).

5. A mixer for a thermal power plant according to claim 1, characterized in that: The slag-clearing mechanism comprises a transmission shaft (14), the transmission shaft (14) is symmetrically arranged, and both ends are rotatably connected to the two sides of the top end of the first stirring portion (2), sprockets (17) are fixed to both ends of the shaft body of the transmission shaft (14), a chain (15) is installed on the sprocket (17), and a slag-clearing plate (16) is fixed on the chain (15).

Images