Novel flow dynamic sludge shearing device

Abstract

The utility model relates to the technical field of sewage treatment, and discloses a novel fluid dynamic sludge shearing device which comprises a cylindrical shell and a shearing mechanism arranged in the shell, a feeding hole is formed in the bottom of the shell, and a discharging pipe is fixedly connected to the upper part of the side surface of the shell; the shearing mechanism comprises two clockwise spiral barrels and two anticlockwise spiral barrels which are arranged in the shell, and the clockwise spiral barrels and the anticlockwise spiral barrels are arranged in a staggered mode and connected end to end. Through the arrangement of the forward and reverse propeller blades, the sludge floc generates inner flow fields of laminar flows in different directions, then the laminar flows in multiple directions collide with one another to generate flow-state shearing force, the effect of damaging the sludge floc is achieved, the shearing efficiency of the sludge is effectively improved, meanwhile, the device is easy to manufacture and low in cost, does not need to be driven by power, and is suitable for large-scale popularization and application. And more energy is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a new type of fluid dynamic sludge shearing device. Background Technique

[0002] Sludge shearing refers to the physical treatment of sludge through mechanical actions (such as stirring, pumping, etc.) during the sewage treatment process to improve the fluidity and treatment efficiency of the sludge. Sludge shearing can reduce the size of sludge particles and increase the surface area of sludge particles, thereby improving the sedimentation performance and dewatering efficiency of the sludge.

[0003] Currently, sludge shearing is mainly carried out by high shear machines, and the existing high shear machines have the disadvantages of high energy consumption, high manufacturing cost, large manufacturing difficulty, and low shearing efficiency. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the above technical defects and provide a new type of fluid dynamic sludge shearing device.

[0005] To solve the above problems, the technical solution of the utility model is: a new type of fluid dynamic sludge shearing device, including a cylindrical shell and a shearing mechanism arranged inside the shell. The bottom of the shell is provided with a feed inlet, and a discharge pipe is fixedly connected to the upper part of the side. The shearing mechanism includes two clockwise spiral barrels and two counterclockwise spiral barrels arranged inside the shell. The clockwise spiral barrels and the counterclockwise spiral barrels are arranged alternately and are connected end to end.

[0006] Furthermore, flanges are provided at both the bottom of the shell and the end of the discharge pipe.

[0007] Furthermore, a central column one is arranged inside the clockwise spiral barrel, and a forward propeller blade is installed on the central column one.

[0008] Furthermore, a central column two is arranged inside the counterclockwise spiral barrel, and a reverse propeller blade is installed on the central column two.

[0009] The advantages of the utility model compared with the existing technology are as follows: by setting forward and reverse propeller blades, the utility model enables the sludge flocs to generate an internal flow field of laminar flow in different directions, and then the multi-directional laminar flows collide with each other to generate a fluid shear force, achieving the effect of destroying the sludge flocs, effectively improving the sludge shearing efficiency. At the same time, the device is simple to manufacture, low in cost, and does not require power drive itself, being more energy-saving. Brief Description of the Drawings

[0010] Figure 1 It is the structural diagram of the utility model.

[0011] Figure 2 It is the speed simulation diagram of the utility model.

[0012] Figure 3 is the shear rate simulation diagram of the present utility model.

[0013] Figure 4 is the vorticity simulation diagram of the present utility model.

[0014] As shown in the figure: 1. housing; 2. discharge pipe; 3. flange; 4. clockwise spiral barrel; 5. counterclockwise spiral barrel; 6. central column 1; 7. forward propeller blade; 8. central column 2; 9. reverse propeller blade. Specific implementation mode

[0015] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments; based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0016] As Figure 1 shown, a new type of fluid dynamic sludge shearing device includes a cylindrical housing 1 and a shearing mechanism arranged inside the housing 1. The bottom of the housing 1 is provided with a feed inlet, and the upper part of the side is fixedly connected with a discharge pipe 2. Flanges 3 are provided at the bottom of the housing 1 and the end of the discharge pipe 2.

[0017] The shearing mechanism includes two clockwise spiral barrels 4 and two counterclockwise spiral barrels 5 arranged inside the housing 1. The clockwise spiral barrels 4 and the counterclockwise spiral barrels 5 are arranged in an alternating manner and are connected end to end; a central column 1 6 is arranged inside the clockwise spiral barrel 4, and a forward propeller blade 7 is installed on the central column 1 6. A central column 2 8 is arranged inside the counterclockwise spiral barrel 5, and a reverse propeller blade 9 is installed on the central column 2 8.

[0018] In specific use, the sludge flocs enter the inside of the housing 1 at a high speed through a reflux pump and pass through the clockwise spiral barrel 4 - counterclockwise spiral barrel 5 - clockwise spiral barrel 4 - counterclockwise spiral barrel 5 in sequence, and then are discharged through the discharge pipe 2. The blades inside the clockwise spiral barrel 4 and the counterclockwise spiral barrel 5 are positive and reverse spirals. By reciprocating in positive and negative directions, an internal flow field of laminar flow in different directions is generated. Then, the multi-directional laminar flows collide with each other to generate a fluid dynamic shear force, achieving the effect of destroying the sludge flocs and effectively improving the shearing efficiency of the sludge.

[0019] As Figures 2 to 4 shown, the results are obtained by simulating the inlet conditions of the internal flow field at 10 cubic meters per hour.

[0020] The processed spiral blade is welded to the central cylinder and then installed inside the housing 1. It is spot-welded at the edge. Two sections of clockwise spiral barrels and two sections of counterclockwise spiral barrels are alternately welded and formed. Then one end of the housing is sealed, and the discharge pipe 2 and the flange 3 are welded. It is simple to manufacture, low in cost, and does not require power drive itself, being more energy-efficient.

[0021] The parts not disclosed in this utility model are all prior arts, and their specific structures and working principles will not be elaborated herein.

[0022] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or sequence between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0023] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

[0024] The above describes the present utility model and its implementation manners. Such description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present utility model, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and, without departing from the gist of the creation of the present utility model, design similar structural manners and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present utility model.

Claims

1. A novel fluid dynamic sludge shearing device, comprising a cylindrical shell (1) and a shearing mechanism arranged inside the shell (1), wherein the shell (1) is provided with a feed inlet at the bottom and a discharge pipe (2) is fixedly connected to the upper side thereof, characterized in that: The shearing mechanism comprises two clockwise spiral barrels (4) and two counterclockwise spiral barrels (5) arranged inside the shell (1), and the clockwise spiral barrels (4) and the counterclockwise spiral barrels (5) are arranged in a staggered manner.

2. A novel fluid dynamic sludge shearing device according to claim 1, characterized in that: Flanges (3) are provided at the bottom of the shell (1) and at the end of the discharge pipe (2).

3. A novel fluid dynamic sludge shearing device according to claim 1, characterized in that: A central column (6) is provided inside the clockwise spiral barrel (4), and a forward propeller blade (7) is installed on the central column (6).

4. A novel fluid dynamic sludge shearing device according to claim 1, characterized in that: A second central column (8) is provided inside the counterclockwise spiral barrel (5), and a reverse propeller blade (9) is installed on the second central column (8).

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