Pipeline mixer for mixing flocculant and sludge

Abstract

The utility model provides a pipeline mixer for mixing flocculant and sludge, which relates to the technical field of mixing devices and comprises a sludge input pipe, a flocculant input pipe, a mixing pipe and a mixer, flanges are arranged at two ends of the sludge input pipe, and the sludge input pipe is connected with a flange at a liquid inlet end of the mixing pipe through a flange at a liquid outlet end. The flocculating agent input pipe is uniformly mounted on the side wall of the sludge input pipe, the mixer is detachably mounted in the mixing pipe, and the problems that a spiral blade of an existing pipeline mixer is fixed, sludge particles are easily accumulated at the dead angle of the spiral blade and are difficult to clean, and the flow dividing efficiency of sludge is low can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of mixing devices, and particularly relates to a pipeline mixer for mixing flocculant and sludge. Background Art

[0002] Flocculants can bond and aggregate colloidal microparticles in sludge together, and can effectively remove suspended solids, turbidity, organic matter, heavy metal ions, etc. A pipeline mixer is a mixer without any mechanical moving parts, which can achieve uniform mixing of two or more fluids when flowing through a pipeline by the action of a certain component or mixing element.

[0003] Existing tubular mixers mostly adopt multiple fixed spiral blades arranged in the pipeline to divide sewage into pairs of streams, and at the same time generate vortex reverse rotation and cross flow, which can cause the water flow to collide and diffuse the flocculant in all directions, effectively enhancing the mixing effect.

[0004] The following problems exist in the existing tubular mixer when mixing flocculant and sludge: First, the spiral blades are fixed, and sludge particles are likely to accumulate in the dead corners of the spiral blades and are difficult to clean, ultimately resulting in channel blockage; second, each spiral blade is a single blade, and the flow splitting efficiency of sludge is low, resulting in poor mixing effect. Therefore, this application proposes a pipeline mixer for mixing flocculant and sludge. Summary of the Utility Model

[0005] In order to overcome the problems in the background art, the utility model provides a pipeline mixer for mixing flocculant and sludge, which solves the problems that the spiral blades of the existing pipeline mixer are fixed, sludge particles are easy to accumulate in the dead corners of the spiral blades and are difficult to clean, and the flow splitting efficiency of sludge is low.

[0006] A pipeline mixer for mixing flocculant and sludge includes a sludge input pipe, a flocculant input pipe, a mixing pipe and a mixer. Flanges are provided at both ends of the sludge input pipe, and the sludge input pipe is connected to the flange at the liquid inlet end of the mixing pipe through the flange at the liquid outlet end. The flocculant input pipes are uniformly installed on the side wall of the sludge input pipe, and the mixer is detachably installed in the mixing pipe.

[0007] Further, the sludge input pipe has a mixing cavity with a rhombic cross-section, and the flocculant input pipes are obliquely arranged on the side wall of the extended end of the mixing cavity and extend into the mixing cavity towards the contracted end.

[0008] Further, a radial limiting rod is provided in the pipe body at the liquid outlet end of the mixing pipe, a limiting groove is provided in the middle of the limiting rod, and installation grooves are uniformly provided on the side wall of the end of the pipe body at the liquid inlet end of the mixing pipe.

[0009] Further, the mixer includes a central shaft and spiral blades. A plurality of groups of spiral blades are evenly installed on the central shaft. A limiting block is arranged at the bottom end of the central shaft to cooperate with a limiting groove, and a mounting rod is arranged at the top end of the central shaft to cooperate with a mounting groove.

[0010] Further, the included angles between each group of spiral blades are evenly distributed. Each group of spiral blades is twisted by 180°. The rotation directions of adjacent groups of spiral blades are opposite and evenly staggered.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] In this application, the mixer and the mixing pipe are detachably installed, which is convenient for disassembly and cleaning, solving the problem that the spiral blades of the existing pipeline mixer are fixed and sludge particles are easy to accumulate in the dead corners of the spiral blades and difficult to clean. The sludge input pipe of this application has a mixing cavity with a rhombic cross-section. The flocculant input pipe is inclined and arranged on the side wall of the extended end of the mixing cavity and extends into the mixing cavity towards the contraction end, which can enhance the mixing effect of sludge and flocculant during input. At the same time, a plurality of groups of spiral blades are evenly installed on the central shaft, and the rotation directions of adjacent groups of spiral blades are opposite and evenly staggered, which can enhance the shunt efficiency, thus solving the problem of low shunt efficiency of the existing pipeline mixer for sludge. Description of the Drawings

[0013] To clearly illustrate the technical solutions in the embodiments of the present utility model, the drawings required for the description of the embodiments are described.

[0014] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0015] Figure 2 It is a schematic diagram of the internal structure of the present utility model;

[0016] Figure 3 It is a schematic diagram of the structure of the mixing pipe of the present utility model;

[0017] Figure 4 It is a schematic diagram of the structure of the mixer of the present utility model.

[0018] 1 - sludge input pipe, 11 - mixing cavity, 2 - flocculant input pipe, 3 - mixing pipe, 31 - limiting rod, 32 - limiting groove, 33 - mounting groove, 4 - mixer, 41 - central shaft, 42 - spiral blade, 43 - limiting block, 44 - mounting rod. Detailed Embodiments

[0019] In order to make the purpose, technical solutions and beneficial effects of the present utility model clearer, the preferred embodiments of the present utility model will be described in detail below with reference to the drawings for the convenience of those skilled in the art to understand.

[0020] The present utility model provides a pipeline mixer for mixing flocculant and sludge. Refer toFigures 1-4 A pipe mixer for mixing flocculant and sludge, comprising a sludge input pipe 1, a flocculant input pipe 2, a mixing pipe 3 and a mixer 4. Flanges are provided at both ends of the sludge input pipe 1, and the sludge input pipe 1 is connected to the liquid inlet flange of the mixing pipe 3 through the flange at the liquid outlet end. The flocculant input pipe 2 is evenly installed on the side wall of the sludge input pipe 1, and the mixer 4 is detachably installed in the mixing pipe 3.

[0021] The sludge input pipe 1 can be connected to a sludge delivery pump, the flocculant input pipe 2 can be connected to a flocculant delivery pump. The sludge and flocculant input into the mixing pipe 3 can carry out a mixing motion. The mixer 4 can divide the sludge into pairs of streams, simultaneously generate vortex reverse rotation and cross flow, which can cause the flocculant and sludge to collide, diffuse the flocculant in all directions and uniformly mix with the sludge. At the same time, the detachable design facilitates cleaning.

[0022] Refer to Figures 1-4 The sludge input pipe 1 has a mixing chamber 11 with a rhombic cross-section. The flocculant input pipe 2 is inclined and arranged on the side wall of the extended end of the mixing chamber 11 and extends into the mixing chamber 11 towards the contraction end, which can enhance the mixing effect of the sludge and flocculant during input.

[0023] Refer to Figures 1-4 A radial limiting rod 31 is provided inside the pipe body at the liquid outlet end of the mixing pipe 3. A limiting groove 32 is provided in the middle of the limiting rod 31. Installation grooves 33 are evenly provided on the side wall of the end of the pipe body at the liquid inlet end of the mixing pipe 3. The mixer 4 includes a central shaft 41 and spiral blades 42. Multiple groups of spiral blades 42 are evenly installed on the central shaft 41. A limiting block 43 is provided at the bottom end of the central shaft 41 to cooperate with the limiting groove 32, and an installation rod 44 is provided at the top end of the central shaft 41 to cooperate with the installation groove 33, which facilitates cleaning of the mixer 4 and the mixing pipe 3 after mixing is completed, and solves the problem that the spiral blades of the existing pipe mixer are fixed and sludge particles are likely to accumulate in the dead corners of the spiral blades and are difficult to clean.

[0024] Refer to Figures 1-4 The included angles between each group of spiral blades 42 are evenly distributed. Each group of spiral blades 42 is twisted by 180°. The rotation directions of adjacent groups of spiral blades 42 are opposite and evenly staggered, which can enhance the splitting efficiency and thus solve the problem of low splitting efficiency of the existing pipe mixer for sludge.

[0025] Working process:

[0026] Install the sludge input pipe 1 and the mixing pipe 3 by flange connection. Connect the output end of the mixing pipe 3 to the subsequent process section. Then, connect the input end of the sludge input pipe 1 to the sludge delivery pump, and connect the flocculant dosing device to the flocculant input pipe 2. Start to transport the sludge and the flocculant. The sludge and the flocculant are first mixed in the mixing chamber 11 of the sludge input pipe 1, and then enter the mixing pipe 3. Under the action of the mixer 4, the sludge is divided into pairs and shunted, and at the same time, a vortex rotates in the reverse direction and cross-flow occurs, causing the flocculant and the sludge to collide, so that the flocculant is diffused in all directions and evenly mixed with the sludge. After the mixing is completed, disassemble the mixer 4 for cleaning.

[0027] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A pipeline mixer for mixing flocculants and sludge, characterized in that: The invention comprises a sludge input pipe (1), a flocculant input pipe (2), a mixing pipe (3) and a mixer (4), wherein flanges are arranged at both ends of the sludge input pipe (1), the sludge input pipe (1) is connected to the flange at the liquid inlet end of the mixing pipe (3) via the flange at the liquid outlet end, the flocculant input pipe (2) is evenly installed on the side wall of the sludge input pipe (1), and the mixer (4) is detachably installed in the mixing pipe (3).

2. The pipeline mixer for mixing flocculant and sludge according to claim 1, characterized in that: The sludge input pipe (1) has a mixing chamber (11) with a diamond-shaped cross section, and the flocculant input pipe (2) is arranged obliquely on the side wall of the expansion end of the mixing chamber (11) and extends into the mixing chamber (11) toward the contraction end.

3. The pipeline mixer for mixing flocculant and sludge according to claim 1, characterized in that: A radial limiting rod (31) is provided in the tube body at the liquid outlet end of the mixing tube (3), a limiting groove (32) is provided in the middle of the limiting rod (31), and mounting grooves (33) are evenly provided on the side wall of the tube end of the mixing tube (3) at the liquid inlet end.

4. The pipeline mixer for mixing flocculant and sludge according to claim 1, characterized in that: The mixer (4) comprises a central shaft (41) and spiral blades (42), wherein a plurality of spiral blades (42) are evenly mounted on the central shaft (41), a limiting block (43) is disposed at the bottom end of the central shaft (41) and cooperates with the limiting groove (32), and a mounting rod (44) is disposed at the top end of the central shaft (41) and cooperates with the mounting groove (33).

5. The pipeline mixer for mixing flocculant and sludge according to claim 4, characterized in that: The angles between each group of spiral sheets (42) are evenly distributed, the spiral sheets (42) are twisted 180 degrees, and adjacent groups of spiral sheets (42) rotate in opposite directions and are evenly staggered.

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