Power plant wastewater treatment device

Abstract

The invention discloses a power plant wastewater treatment device, which belongs to the technical field of wastewater treatment, and comprises a stirring barrel, a self-cleaning stirring mechanism and a wall scraping mechanism, a water guide pipe is communicated with the side wall of the stirring barrel, a filter screen is arranged at one end, close to the stirring barrel, of the water guide pipe, and a first control valve is further arranged on the water guide pipe; a barrel cover is arranged above the stirring barrel, and a supporting assembly is arranged at the bottom of the stirring barrel; the self-cleaning stirring mechanism is connected with the barrel cover and comprises a stirring assembly I and a stirring assembly II; the wall scraping mechanism is connected with the stirring assembly II and is used for cleaning crystal substances attached to the inner wall of the stirring barrel and the filter screen; by means of the design, self-cleaning of the stirring blades can be achieved, crystal substances attached to the inner wall of the stirring barrel and the filter screen can be cleaned while stirring is conducted, and operation is easy.

Description

Technical Field

[0001] The present invention belongs to the technical field of wastewater treatment, and particularly relates to a power plant wastewater treatment device. Background Art

[0002] In the process of power plant wastewater treatment, pretreatment is one of the key links. Usually, chemical reagents (such as flocculants, precipitants, etc.) need to be added to the wastewater, and the reaction is promoted by stirring to make impurities crystallize or precipitate for subsequent filtration or separation. However, in actual operation, the stirring process will cause the crystallized substances to adhere to the stirring blades, the inner wall of the stirring tank, and the filter screen of the water guide pipe. The long-term accumulation not only reduces the treatment efficiency but may also block the pipeline and affect the stable operation of the system.

[0003] Currently, for the problem of crystallization residue, the common solution is to separately set cleaning mechanisms at different positions. For example, a scraper is installed on the stirring shaft to clean the inner wall of the stirring tank, or the filter screen is flushed with high-pressure water. However, these methods require additional driving structures and control units, resulting in complex equipment structures, high maintenance costs, and limited cleaning effects.

[0004] In view of the deficiencies of the prior art, the present invention provides a power plant wastewater treatment device to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a power plant wastewater treatment device that can achieve self-cleaning of the stirring blades and can clean the crystallized substances adhering to the inner wall of the stirring tank and the filter screen while stirring, with simple operation.

[0006] To achieve the above purpose, the present invention is implemented by the following technical solutions:

[0007] A power plant wastewater treatment device includes a stirring tank, a self-cleaning stirring mechanism, and a wall scraping mechanism;

[0008] A water guide pipe is connected to the side wall of the stirring tank. A filter screen is provided at one end of the water guide pipe close to the stirring tank, and a control valve I is also provided on the water guide pipe; a bucket cover is provided above the stirring tank, and a support assembly is provided at the bottom;

[0009] The self-cleaning stirring mechanism is connected to the bucket cover and includes a stirring component I and a stirring component II;

[0010] The wall scraping mechanism is connected to the stirring component II and is used to clean the crystallized substances adhering to the inner wall of the stirring tank and the filter screen.

[0011] Preferably, the stirring component I includes a helical gear I, a helical gear II, a helical gear III, a "]"-shaped mounting seat, and a plurality of stirring blades I; wherein,

[0012] The helical gear one and the helical gear two are arranged vertically one above the other above the bucket cover, and the helical gear three meshes with the helical gear one and the helical gear two respectively; the shaft parts of the helical gear one and the helical gear two are respectively connected with a rotating shaft one and a rotating shaft two, the rotating shaft one passes through the bucket cover, and the rotating shaft one is movably connected in the rotating hole opened in the shaft part of the rotating shaft two;

[0013] The upper and lower ends of the "]"-shaped mounting seat are respectively rotationally connected with the rotating shaft one and the rotating shaft two, a motor is arranged on the side part of the "]"-shaped mounting seat, and the motor shaft of the motor is connected to the wheel shaft part of the helical gear three;

[0014] Each stirring blade one is respectively connected with the rotating shaft one.

[0015] Preferably, the stirring assembly two includes a plurality of stirring blades two and at least one connecting column; wherein,

[0016] The stirring blade two at the uppermost position is connected to the outer circumference of the rotating shaft two, and the remaining stirring blades two are movably connected to the rotating shaft one;

[0017] The ends of each stirring blade two are connected to each other through the connecting column;

[0018] And the stirring blades two and the stirring blades one are arranged alternately, and the adjacent stirring blades one and stirring blades two are in contact with each other.

[0019] Preferably, the length of the stirring blade two is greater than the length of the stirring blade one.

[0020] Preferably, the wall scraping mechanism includes a telescopic rod and a scraping plate; one end of the telescopic rod is connected to the outer circumference of the rotating shaft two, and the other end is connected to one side of the scraping plate, and the other side of the scraping plate is an arc shape adapted to the inner wall of the stirring barrel.

[0021] Preferably, the stirring assembly two further includes an arc-shaped block, and the arc-shaped block is connected to the top of the stirring blade two at the uppermost position.

[0022] Preferably, it further includes a feed tank, and the feed tank is communicated with the side wall of the stirring barrel.

[0023] Preferably, it further includes a control valve two, and the control valve two is located at the bottom of the stirring barrel.

[0024] Preferably, the support assembly includes at least three support columns.

[0025] Compared with the prior art, the beneficial effects achieved by the present invention:

[0026] The present invention designs a self-cleaning stirring mechanism. First, a rotating shaft 1 connected to a first helical gear drives the rotation of a plurality of first stirring blades, achieving sufficient mixing of chemical reagents and wastewater. The first helical gear is meshed and connected to a second helical gear through a third helical gear, realizing the coaxial reverse rotation of the second helical gear and the first helical gear. The rotating shaft 2 of the second helical gear drives a plurality of second stirring blades to rotate in the opposite direction, and the second stirring blades are alternately arranged in contact with the first stirring blades, achieving the cleaning of the crystals attached to the first stirring blades and the second stirring blades while stirring. Moreover, the rotating shaft 2 is connected to a scraping plate through a telescopic rod, realizing the cleaning of the inner wall of the stirring barrel and the filter screen. That is, when the motor rotates, multiple parts can be cleaned by one drive, and the operation is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic structural diagram of the present invention.

[0028] Figure 2 is a partial enlarged view A of the present invention.

[0029] Figure 3 is a broken view of the present invention.

[0030] Wherein:

[0031] 1, stirring barrel; 2, support column; 3, barrel cover; 4, self-cleaning stirring mechanism; 41, first stirring assembly; 411, first helical gear; 412, second helical gear; 413, third helical gear; 414, "]"-shaped mounting seat; 415, rotating shaft 1; 416, motor; 417, first stirring blade; 42, second stirring assembly; 421, rotating shaft 2; 422, second stirring blade; 423, connecting column; 424, arc-shaped block; 5, wall scraping mechanism; 51, telescopic rod; 52, scraping plate; 61, water guide pipe; 62, filter screen; 63, first control valve; 7, second control valve; 8, feed tank. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] The present invention will be further described below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and cannot be used to limit the protection scope of the present invention.

[0033] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "middle", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, in the description of the present invention, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0034] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] Embodiment 1

[0036] Reference Figures 1 - 3 , this embodiment provides a power plant wastewater treatment device, which includes a stirring barrel 1, a self-cleaning stirring mechanism 4, and a scraping mechanism 5;

[0037] A water guide pipe 61 is communicated with the side wall of the stirring barrel 1. A filter screen 62 is provided at one end of the water guide pipe 61 close to the stirring barrel 1, and a control valve 63 is also provided on the water guide pipe 61; a barrel cover 3 is provided above the stirring barrel 1, and a support assembly is provided at the bottom;

[0038] The self-cleaning stirring mechanism 4 is connected to the barrel cover 3 and includes a first stirring assembly 41 and a second stirring assembly 42;

[0039] The scraping mechanism 5 is connected to the second stirring assembly 42 and is used to clean the crystals attached to the inner wall of the stirring barrel 1 and the filter screen 62.

[0040] Specifically, in this embodiment, the first stirring assembly 41 includes a first helical gear 411, a second helical gear 412, a third helical gear 413, a "]"-shaped mounting seat 414, and a plurality of first stirring blades 417; among them,

[0041] The first helical gear 411 and the second helical gear 412 are arranged vertically above the barrel cover 3, and the third helical gear 413 meshes with the first helical gear 411 and the second helical gear 412 respectively; the shaft parts of the first helical gear 411 and the second helical gear 412 are respectively connected with a first rotating shaft 415 and a second rotating shaft 421. The first rotating shaft 415 passes through the barrel cover 3, and the first rotating shaft 415 is movably connected to the rotating hole opened in the shaft part of the second rotating shaft 421;

[0042] The upper and lower ends of the "]"-shaped mounting seat 414 are respectively rotationally connected to the first rotating shaft 415 and the second rotating shaft 421. A motor 416 is provided on the side of the "]"-shaped mounting seat 414, and the motor shaft of the motor 416 is connected to the wheel shaft of the third helical gear 413;

[0043] Each of the first stirring blades 417 is connected to the first rotating shaft 415.

[0044] Specifically, in this embodiment, the second stirring assembly 42 includes a plurality of second stirring blades 422 and at least one connecting column 423; among them,

[0045] The second stirring blade 422 located at the uppermost part is connected to the outer periphery of the second rotating shaft 421, and the remaining second stirring blades 422 are movably connected to the first rotating shaft 415;

[0046] The ends of the second stirring blades 422 are connected to each other through the connecting column 423;

[0047] And the second stirring blades 422 and the first stirring blades 417 are arranged alternately, and the adjacent first stirring blades 417 and second stirring blades 422 are in contact with each other.

[0048] It should be noted that, in this embodiment, the length of the second stirring blade 422 is greater than the length of the first stirring blade 417. This design is to ensure that the connecting column 423 will not be blocked by the first stirring blade 417 during rotation.

[0049] Furthermore, in order to prevent crystallization substances from adhering to the top of the second stirring blade 422 located at the top, in this embodiment, the second stirring assembly 42 further includes an arc-shaped block 424, and the arc-shaped block 424 is connected to the top of the second stirring blade 422 located at the uppermost part.

[0050] As is well known, in this embodiment, both the first stirring blade 471 and the second stirring blade 422 are arranged inside the stirring barrel 1.

[0051] In this embodiment, the self-cleaning stirring mechanism 4 of the present invention is designed as follows. First, the rotation of the first rotating shaft 415 connected by the first helical gear 411 drives the rotation of a plurality of first stirring blades 417 to achieve the full mixing of chemical reagents and wastewater. The first helical gear 411 is meshed and connected with a second helical gear 412 through a third helical gear 413, so that the second helical gear 412 and the first helical gear 411 rotate in opposite directions coaxially. The rotation of the second rotating shaft 421 of the second helical gear 412 drives a plurality of second stirring blades 422 to rotate in the opposite direction, and the second stirring blades 422 and the first stirring blades 417 are alternately arranged in contact with each other, so that while stirring, the crystallization substances adhering to the first stirring blades 417 and the second stirring blades 422 can be cleaned; and the second rotating shaft 421 is connected with a scraping plate 52 through a telescopic rod 51 to achieve the cleaning of the inner wall of the stirring barrel 1 and the filter screen 62. That is, when the motor 416 rotates, multiple parts can be cleaned by relying on one drive, and the operation is simple.

[0052] Specifically, the wall scraping mechanism 5 includes a telescopic rod 51 and a scraping plate 52; one end of the telescopic rod 51 is connected to the outer periphery of the second rotating shaft 421, and the other end is connected to one side of the scraping plate 52, and the other side of the scraping plate 52 is an arc shape adapted to the inner wall of the stirring barrel 1.

[0053] It should be noted that in this embodiment, the purpose of designing the telescopic rod 51 is to be applicable to stirring barrels 1 of various diameters, and the telescopic rod 51 in this embodiment is provided with a self-locking component.

[0054] In this embodiment, through the design of the telescopic rod 51 and the scraping plate 52, the scraping wall mechanism 5 can effectively clean the crystallization substances attached to the inner wall of the stirring barrel 1 and the filter screen 62. The arc design of the scraping plate 52 enables it to closely fit the inner wall of the stirring barrel 1, resulting in a remarkable cleaning effect. This design not only solves the problem that traditional cleaning methods require additional driving structures and control units, but also simplifies the equipment structure, reduces the maintenance cost, improves the cleaning efficiency at the same time, ensures the cleanliness of the stirring barrel 1 and the filter screen 62, and extends the service life of the equipment.

[0055] Furthermore, in order to facilitate the addition of chemical reagents (such as flocculants, precipitants, etc.) into the stirring barrel 1, in this embodiment, the device further includes a feed tank 8, and the feed tank 8 is communicated with the side wall of the stirring barrel 1.

[0056] In order to facilitate the discharge of crystallization substances, in this embodiment, the device further includes a control valve two 7, and the control valve two 7 is located at the bottom of the stirring barrel 1.

[0057] In order to provide stable support for the stirring barrel 1, in this embodiment, the support assembly includes at least three support columns 2.

[0058] Working principle: During use, close the control valve one 63, open the control valve two 7 and the barrel cover 3. First, pour the wastewater to be treated into the stirring barrel 1, cover the barrel cover 3, pour the chemical reagent into the stirring barrel 1 through the feed tank 8, start the motor 416. The rotation of the motor 416 shaft drives the helical gear three 413 to rotate, so that the helical gear one 411 and the helical gear two 412 rotate in opposite directions, thereby realizing the mutual contact and relative movement of the stirring blade one 417 and the stirring blade two 422, achieving the self-cleaning of the stirring blades. At the same time, the scraping plate 52 rotates in contact with the inner wall of the stirring barrel 1 driven by the rotating shaft two 421, and the cleaning of the inner wall of the stirring barrel 1 and the filter screen 62 can be realized. After the treatment is completed, turn off the motor 416, open the control valve one 63 and the control valve two 7, and discharge the wastewater through the water guide pipe 61, and discharge the crystallization substances through the bottom of the stirring barrel 1.

[0059] In summary, through the combination of the above structures, the power plant wastewater treatment device realizes the functions of efficient stirring and automatic cleaning through the synergistic effect of the self-cleaning stirring mechanism 4 and the scraping wall mechanism 5, effectively improves the wastewater treatment efficiency, reduces the equipment maintenance cost, simplifies the equipment structure at the same time, and ensures the stable operation of the equipment.

[0060] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A power plant wastewater treatment device, characterized in that, It includes a stirring barrel (1), a self-cleaning stirring mechanism (4) and a wall scraping mechanism (5). A water guide pipe (61) is connected to the side wall of the stirring barrel (1). A filter screen (62) is provided at one end of the water guide pipe (61) close to the stirring barrel (1), and a control valve I (63) is also provided on the water guide pipe (61). A barrel cover (3) is provided above the stirring barrel (1), and a support assembly is provided at the bottom. The self-cleaning stirring mechanism (4) is connected to the barrel cover (3), and it includes a stirring assembly I (41) and a stirring assembly II (42). The wall scraping mechanism (5) is connected to the stirring assembly II (42) and is used to clean the crystals attached to the inner wall of the stirring barrel (1) and the filter screen (62).

2. The power plant wastewater treatment device according to claim 1, characterized in that, The stirring assembly I (41) includes a helical gear I (411), a helical gear II (412), a helical gear III (413), a "]”-shaped mounting seat (414) and a plurality of stirring blades I (417); among them, The helical gear I (411) and the helical gear II (412) are arranged vertically above the barrel cover (3), and the helical gear III (413) meshes with the helical gear I (411) and the helical gear II (412) respectively; the shaft parts of the helical gear I (411) and the helical gear II (412) are respectively connected with a rotating shaft I (415) and a rotating shaft II (421). The rotating shaft I (415) passes through the barrel cover (3), and the rotating shaft I (415) is movably connected to the rotating hole opened in the shaft part of the rotating shaft II (421). The upper and lower ends of the "]”-shaped mounting seat (414) are respectively rotationally connected to the rotating shaft I (415) and the rotating shaft II (421). A motor (416) is provided on the side of the "]”-shaped mounting seat (414), and the motor shaft of the motor (416) is connected to the wheel shaft of the helical gear III (413). Each of the stirring blades I (417) is respectively connected to the rotating shaft I (415).

3. The power plant wastewater treatment device according to claim 2, characterized in that, The stirring assembly II (42) includes a plurality of stirring blades II (422) and at least one connecting column (423); among them, The uppermost stirring blade II (422) is connected to the outer circumference of the rotating shaft II (421), and the remaining stirring blades II (422) are movably connected to the rotating shaft I (415). The ends of each of the stirring blades II (422) are connected to each other through the connecting column (423). And the stirring blades II (422) and the stirring blades I (417) are arranged alternately, and the adjacent stirring blades I (417) and the stirring blades II (422) are in contact with each other.

4. The power plant wastewater treatment device according to claim 3, wherein, The length of the stirring blade II (422) is greater than the length of the stirring blade I (417).

5. The power plant wastewater treatment device according to claim 2, wherein, The wall scraping mechanism (5) includes a telescopic rod (51) and a scraping plate (52); one end of the telescopic rod (51) is connected to the outer circumference of the rotating shaft II (421), and the other end is connected to one side of the scraping plate (52). The other side of the scraping plate (52) is an arc adapted to the inner wall of the stirring barrel (1).

6. The power plant wastewater treatment device according to claim 3, wherein, The stirring assembly II (42) further includes an arc-shaped block (424), and the arc-shaped block (424) is connected to the top of the uppermost stirring blade II (422).

7. The power plant wastewater treatment device according to claim 1, characterized in that, It further includes a feed tank (8), and the feed tank (8) is connected to the side wall of the stirring barrel (1).

8. The power plant wastewater treatment device according to claim 1, wherein, It further includes a second control valve (7), and the second control valve (7) is located at the bottom of the stirring tank (1).

9. The power plant wastewater treatment device according to claim 1, wherein The support assembly includes at least three support columns (2).

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