Flocculation mixing device for sludge treatment

Abstract

The utility model discloses a flocculation mixing device for sludge treatment, which relates to the technical field of sludge treatment and comprises a mixing tank, a first stirring component and a second stirring component are arranged at the upper port of the mixing tank, and a motor is arranged between the first stirring component and the second stirring component; a driving gear at the output end of the motor is internally meshed with the gear ring and externally meshed with the driving gear; the second stirring assembly is arranged in the first stirring assembly; the driven gear is connected with the first partition plate and the second partition plate through a rotating frame; the sludge and flocculant mixing device has the beneficial effects that the first stirring assembly and the second stirring assembly are in different rotating modes, sludge and a flocculant are fully mixed, meanwhile, the stirring blades are attached to the inner wall of the mixing tank, and in the rotating process, the sludge on the inner wall is scraped off and synchronously participates in mixing; the first partition plate and the second partition plate are staggered and incline in different directions, so that the sludge collides and is dispersed in the mixing process, and the sludge and a flocculating agent are fully mixed.

Description

Technical Field

[0001] The utility model relates to the technical field of sludge treatment, in particular to a flocculation and mixing device for sludge treatment. Background Art

[0002] Sludge is an inevitable product of sewage treatment plants and sewage stations. If the sludge is not properly treated and disposed of, it will directly cause secondary pollution to the water and the atmosphere after entering the environment, and will also pose a serious threat to the ecological environment and human activities. Therefore, sludge should be handled very carefully. Sludge can be dehydrated by a screw stack sludge dewatering machine. The general screw stack sludge dewatering machine includes a metering tank, a flocculation mixing tank, a dewatering body and a mud outlet. The sludge is transported to the metering tank by a sludge delivery pump. The metered sludge is fully stirred and mixed with the injected polymer flocculant in the flocculation mixing tank, and then transported to the dewatering body for dehydration. Finally, the sludge is discharged from the mud outlet, and the water in the sludge is squeezed out.

[0003] In the existing mixing tank, the mixing effect of sludge and flocculant is poor, and during the mixing process, part of the sludge is adsorbed on the inner wall of the mixing tank. During the mixing process, the sludge adsorbed on the inner wall is not easy to participate in the mixing of the flocculant, resulting in a decrease in the subsequent flocculation effect. Utility Model Content

[0004] Some simplifications or omissions may be made in this section and the abstract of the specification and the title of the utility model of this application to avoid blurring the purpose of this section, the abstract of the specification and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the utility model.

[0005] In view of the above problems or problems existing in the prior art, the present utility model is proposed.

[0006] Therefore, the purpose of the utility model is to provide a flocculation mixing device for sludge treatment, which solves the problem of uneven mixing of sludge and flocculant.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: a flocculation and mixing device for sludge treatment, comprising a mixing tank, an upper port of which is provided with a first stirring component and a second stirring component, and a motor is provided between the first stirring component and the second stirring component;

[0008] The first stirring component is internally meshed with the driving gear at the output end of the motor through a gear ring, and the driven gear in the second stirring component is externally meshed with the driving gear at the output end of the motor;

[0009] The second stirring component is placed inside the first stirring component without interference;

[0010] The driven gear is connected to the first partition plate and the second partition plate through a rotating frame.

[0011] As a preferred solution of the flocculation and mixing device for sludge treatment described in the utility model, wherein: the first stirring component includes a connecting plate, the upper end surface of the connecting plate is provided with the gear ring, and the lower end surface is provided with multiple stirring plates, the connecting plate is ring-shaped, and the inner and outer edges of the connecting plate are respectively provided with an inner clamping ring and an outer clamping ring.

[0012] As a preferred solution of the flocculation and mixing device for sludge treatment of the utility model, wherein: the first dividing plate and the second dividing plate are alternately distributed on the rotating frame, and the driven gear is connected to the rotating frame through a connecting head.

[0013] As a preferred solution of the flocculation and mixing device for sludge treatment described in the utility model, wherein: a mud outlet and a mud inlet are respectively provided on both sides of the upper end of the mixing tank, and the top surface of the mixing tank is movably connected to the connecting plate and the connecting head through an upper top plate, and at the same time, the connecting plate is movably connected to the upper edge of the mixing tank through an external clamping ring, and the upper top plate is connected to a flocculant delivery pipe.

[0014] As a preferred solution of the flocculation and mixing device for sludge treatment of the utility model, the second dividing plate is close to the outer side of the rotating frame, the first dividing plate is close to the inner side of the rotating frame, and the first dividing plate and the second dividing plate are both inclined, and the inclination directions of the two are opposite.

[0015] Beneficial effects of the utility model: the utility model simultaneously meshes the driving gear with the gear ring and the driven gear internally and externally, so that the first stirring component and the second stirring component rotate at different speeds and directions, and the sludge and the flocculant are fully mixed. At the same time, the stirring blade is attached to the inner wall of the mixing tank, and during the rotation process, the sludge on the inner wall is scraped off and synchronously participates in the mixing;

[0016] The first dividing plate and the second dividing plate are staggered and inclined in different directions, so that the sludge collides and disperses during the mixing process, thereby promoting full mixing of the sludge and the flocculant. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following is a brief introduction to the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0018] Figure 1 It is an overall schematic diagram of a flocculation and mixing device for sludge treatment;

[0019] Figure 2 This is a schematic diagram of the internal structure of a flocculation and mixing device for sludge treatment;

[0020] Figure 3 A schematic diagram of a first stirring assembly of a flocculation and mixing device for sludge treatment;

[0021] Figure 4 A schematic diagram of a second stirring assembly of a flocculation and mixing device for sludge treatment;

[0022] Figure 5 Detailed schematic diagram of the flocculation and mixing device for sludge treatment. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0024] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0026] Example 1

[0027] Reference Figures 1 to 5 , which is the first embodiment of the utility model, and provides a flocculation mixing device for sludge treatment, which includes a mixing tank 100, a first stirring component 200 and a second stirring component 300 are provided at the upper port of the mixing tank 100, and a motor 400 is provided between the first stirring component 200 and the second stirring component 300;

[0028] The first stirring assembly 200 is internally meshed with the driving gear 401 at the output end of the motor 400 through the gear ring 203, and the driven gear 301 in the second stirring assembly 300 is externally meshed with the driving gear 401 at the output end of the motor 400;

[0029] The second stirring component 300 is placed inside the first stirring component 200, and there is no interference between the two.

[0030] The driven gear 301 is connected to the first partition plate 302 and the second partition plate 303 via the rotating frame 304 .

[0031] Furthermore, the first stirring assembly 200 includes a connecting plate 201, the upper end surface of the connecting plate 201 is provided with a gear ring 203, the lower end surface is provided with a plurality of stirring blades 202, the connecting plate 201 is ring-shaped, and the inner and outer edges of the connecting plate 201 are respectively provided with an inner retaining ring 205 and an outer retaining ring 204.

[0032] Preferably, nine stirring blades 202 are provided, and the upper ends are fixed to the bottom surface of the connecting plate 201 .

[0033] Preferably, the outer edge of the connecting plate 201 is clamped into the groove at the upper port of the mixing tank 100 through the outer clamping ring 204, and the inner edge of the connecting plate 201 is clamped into the groove of the outer edge of the upper top plate 104 through the inner clamping ring 205.

[0034] Preferably, the rotation of the first stirring component 200 and the second stirring component 300 is not restricted.

[0035] Furthermore, the first dividing plate 302 and the second dividing plate 303 are alternately distributed on the rotating frame 304 , and the driven gear 301 is connected to the rotating frame 304 via a connecting head 305 .

[0036] Preferably, three first partition plates 302 and three second partition plates 303 are provided on the rotating frame 304, and the first partition plates 302 and the second partition plates 303 are annularly staggered and distributed on the rotating frame 304. If the rotating frame 304 rotates counterclockwise, the second partition plates 303 tilt upward along the rotation direction, and the first partition plates 302 tilt downward along the rotation direction.

[0037] Preferably, the edge of the connector 305 has an annular protrusion, which is inserted into a groove on the inner edge of the upper top plate 104 .

[0038] Furthermore, a mud outlet 101 and a mud inlet 102 are respectively provided on both sides of the upper end of the mixing tank 100. The top surface of the mixing tank 100 is movably connected to the connecting plate 201 and the connecting head 305 through an upper top plate 104. At the same time, the connecting plate 201 is movably connected to the upper edge of the mixing tank 100 through an outer clamping ring 204. The upper top plate 104 is connected to a flocculant delivery pipe 103.

[0039] Furthermore, the second partition plate 303 is close to the outer side of the rotating frame 304, and the first partition plate 302 is close to the inner side of the rotating frame 304. The first partition plate 302 and the second partition plate 303 are both inclined, and the inclination directions of the two are opposite.

[0040] When in use, the motor 400 is started, the driving gear 401 starts to rotate clockwise, the stirring blade 202 rotates clockwise following the gear ring 203, and the driven gear 301 drives the first partition plate 302 and the second partition plate 303 to rotate counterclockwise. The first stirring component 200 and the second stirring component 300 have different directions of rotation, and the rotation speed of the second stirring component 300 is greater than that of the first stirring component 200. Sludge and flocculant are injected into the mud inlet 102 and the flocculant delivery pipe 103 respectively. When the first partition plate 302 and the second partition plate 303 come into contact with the sludge, on the one hand, they disperse the sludge, and on the other hand, they make the sludge have a downward and upward movement tendency. The sludge and flocculant are fully mixed in the mixing tank 100 and finally discharged from the mud outlet 101.

[0041] In summary, the device simultaneously meshes internally and externally with the gear ring 203 and the driven gear 301 through the driving gear 401, so that the first stirring component 200 and the second stirring component 300 rotate at different speeds and directions, and the sludge and the flocculant are fully mixed. At the same time, the stirring blade 202 is attached to the inner wall of the mixing tank 100, and during the rotation process, the sludge on the inner wall is scraped off and synchronously participates in the mixing;

[0042] The first partition plate 302 and the second partition plate 303 are staggered and inclined in different directions, so that the sludge collides and disperses during the mixing process, thereby promoting full mixing of the sludge and the flocculant.

[0043] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and ratio of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present utility model. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also an equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to a specific embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0044] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0045] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0046] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A flocculation and mixing device for sludge treatment, characterized in that: include, A mixing tank (100), wherein a first stirring assembly (200) and a second stirring assembly (300) are provided at an upper port of the mixing tank (100), and a motor (400) is provided between the first stirring assembly (200) and the second stirring assembly (300); The first stirring component (200) is internally meshed with the driving gear (401) at the output end of the motor (400) via the gear ring (203), and the driven gear (301) in the second stirring component (300) is externally meshed with the driving gear (401) at the output end of the motor (400); The second stirring component (300) is placed inside the first stirring component (200) without interference; The driven gear (301) is connected to the first partition plate (302) and the second partition plate (303) via a rotating frame (304).

2. The flocculation and mixing device for sludge treatment according to claim 1, characterized in that: The first stirring component (200) comprises a connecting plate (201), the upper end surface of the connecting plate (201) is provided with the toothed ring (203), and the lower end surface is provided with a plurality of stirring blades (202); the connecting plate (201) is ring-shaped, and the inner and outer edges of the connecting plate (201) are respectively provided with an inner retaining ring (205) and an outer retaining ring (204).

3. The flocculation and mixing device for sludge treatment according to claim 2, characterized in that: The first dividing plate (302) and the second dividing plate (303) are alternately distributed on the rotating frame (304), and the driven gear (301) is connected to the rotating frame (304) via a connecting head (305).

4. The flocculation and mixing device for sludge treatment according to claim 3, characterized in that: A mud outlet (101) and a mud inlet (102) are respectively provided on both sides of the upper end of the mixing tank (100); the top surface of the mixing tank (100) is movably connected to the connecting plate (201) and the connecting head (305) via an upper top plate (104); at the same time, the connecting plate (201) is movably connected to the upper edge of the mixing tank (100) via an outer clamping ring (204); and the upper top plate (104) is connected to a flocculant delivery pipe (103).

5. The flocculation and mixing device for sludge treatment according to claim 4, characterized in that: The second partition plate (303) is close to the outer side of the rotating frame (304), and the first partition plate (302) is close to the inner side of the rotating frame (304). The first partition plate (302) and the second partition plate (303) are both in an inclined state, and the inclination directions of the two are opposite.

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