CN219722492U - Pipeline mixer - Google Patents

Abstract

The utility model discloses a pipeline mixer, which comprises a main pipeline and a mixer, wherein the main pipeline comprises a first pipeline, a necking taper pipe and a second pipeline, and the necking taper pipe is sequentially communicated with the first pipeline and the second pipeline; therefore, through the reducing arrangement, the fluid is pressurized and accelerated in the pipeline mixer, so that the mixing degree of the fluid is improved; the mixer is mounted in the main pipe and is used for mixing the fluid in the main pipe, so that the fluid after compression acceleration can be further mixed in the main pipe through the mixer.

Description

Pipeline mixer

Technical Field

The utility model relates to the field of sewage treatment equipment, in particular to a pipeline mixer.

Background

At present, in order to reduce environmental burden, wastewater treatment requirements are increasingly increasing. The final link of the sewage treatment process is to dewater and reduce the sludge, and sludge-water separation is needed before the sludge is dewatered, and the conventional process method comprises the following steps: adding a flocculating agent into the sludge, flocculating and precipitating the sludge by stirring, and separating sludge particles into clusters from water. The flocculation effect determines the subsequent sludge dewatering effect. In the prior art, sludge and flocculant enter a mixing box through different pipelines to be naturally mixed, and enter the mixing box to be stirred and flocculated after being mixed, and the density and viscosity of the flocculant and the sludge are large, so that the flocculant cannot be fully mixed in a natural state, the flocculation effect is not ideal, the size of the floccule is uneven, and the final dewatering efficiency of the sludge is greatly reduced.

Disclosure of Invention

The utility model aims to overcome the defect of low sludge dewatering efficiency caused by uneven mixing of sludge and a medicament in a natural mixing state in the prior art, and provides a pipeline mixer, wherein a main pipeline of the pipeline mixer is internally provided with a mixer, and the main pipeline is of a reducing structure; the structure that the inlet of the main pipeline is large and the outlet is small ensures that the fluid input into the main pipeline can realize pressurization acceleration in the reducer pipeline, the fluid after pressurization acceleration is mixed by the mixer, and the mixing sufficiency among the fluids is improved.

The aim of the utility model is mainly realized by the following technical scheme:

the main pipeline comprises a first pipeline and a second pipeline, and further comprises a necking taper pipe, wherein one end of the necking taper pipe is connected with the first pipeline, and the other end of the necking taper pipe is connected with the second pipeline;

the first pipeline, the necking taper pipe and the second pipeline are sequentially communicated;

the mixer is installed in the main pipeline and is used for mixing fluid in the main pipeline.

At present, in the link of sewage treatment, the dehydration and decrement of the sludge in the sewage generally adopts two modes of concentration and dehydration and flocculant dehydration, and the concentration and dehydration mainly dehydrates the sludge by removing interstitial water of the sludge and reducing the volume of the sludge; however, due to the disadvantages of long time consumption, large occupied area and the like in concentration and dehydration, engineering requirements cannot be met only by concentration and dehydration in many cases, in order to improve the dehydration efficiency, a method of adding a flocculating agent into sludge can be adopted, so that the subsequent dehydration efficiency of the sludge is improved. However, in the conventional method, the flocculation process of the sludge is generally implemented by directly mixing the chemical and the sewage, and the chemical and the sewage which are naturally mixed are easy to have insufficient mixing degree after being directly mixed due to different density and viscosity, so that the sewage and the chemical cannot reach sufficient mixing degree, the size of the floccule formed by the chemical and the sewage is easy to be uneven, and the sewage treatment effect is reduced. In order to achieve the sufficiency of mixing between fluids, a general pipeline mixer is provided with a stirring device in a pipeline, so as to achieve the sufficiency of mixing the fluids input into the pipeline mixer; because the mixer comprises a movable power structure, the structure of the mixer is complex, and when scaling is generated in the pipeline mixer, the problem of difficult cleaning exists.

In an embodiment of the utility model, in order to improve the mixing degree between fluids in the pipeline mixer, the pipeline mixer comprises a main pipeline and a mixer, wherein the main pipeline comprises a first pipeline, a necking cone pipe and a second pipeline, the necking cone pipe is provided with ports with different sizes, and the necking cone pipe is sequentially communicated with the first pipeline and the second pipeline to form the main pipeline. Thus, in the embodiment of the utility model, when the flocculant and the sewage are mixed and input into the main pipeline, the pipeline which is communicated with the mixed fluid through the big port of the necking cone is used as an input pipeline, and the pipeline which is communicated with the small port of the necking cone is used as an output pipeline; since the capacity of the input pipe is larger than that of the output pipe, the mixed fluid input through the input pipe enters the output pipe with smaller capacity after passing through the necking cone, and the mixed fluid is pressurized due to the reduction of the active space of the fluid; in this way, the flocculant is more thoroughly mixed with the sewage in the pipe mixer. In addition, the pipe mixer further includes a mixer installed in the main pipe, the mixed fluid being accelerated when the mixed fluid in the pipe mixer is pressurized in the main pipe; further mixing of the mixed fluid after the pressurization acceleration is performed by forming a gap between the mixer and the inner wall of the main pipeline, and when the mixed fluid is pressurized and accelerated, the mixed fluid can be mixed more efficiently in the pipeline mixer. In addition, the mixing of the mixed fluid by the pipeline mixer is realized only by the movement of the mixed fluid, namely, the mixing of the pipeline mixer does not depend on any power device, so that the pipeline mixer has small external resistance and high working stability when in work.

Further, the mixer comprises a guide member and a mixing member, the mixing member is fixed to the inner wall of the main pipe, and the guide member is connected to the mixing member and is capable of guiding the fluid into the mixing member.

In the embodiment of the utility model, the mixer is used for mixing the fluid in the main pipeline, and in order to improve the mixing effect of the mixer on the fluid, the mixer comprises a mixing piece and a guiding piece, and the guiding piece can realize guiding and splitting of the fluid. Thus, in an embodiment of the present utility model, after passing the mixed fluid of the sewage and the flocculant into the pipe mixer, the mixed fluid flows through the guide; after being guided and split by the guide member, the mixed fluid entering the mixing member is dispersed, so that the mixing degree of the mixed fluid in the pipeline mixer is greatly improved when the mixed fluid is further mixed by the mixing member. In order to improve the stability of the working state of the pipeline mixer, the mixing piece is fixed with the inner wall of the main pipeline, and the guide piece is connected with the inner wall of the main pipeline through the mixing piece. Thus, the pipeline mixer avoids a complex structure in the main pipeline, and reduces the probability of scaling accumulation in the main pipeline; in addition, the mixer has no movable part, is small in resistance in use, and can realize better mixing of the mixed fluid in the pipeline mixer.

Further, the mixing piece comprises a plurality of spiral blades, and the plurality of spiral blades are arranged between the guide piece and the inner wall of the main pipeline.

In the embodiment of the utility model, the mixing element is used for mixing the fluid flowing into the pipeline mixer, and in order to improve the working efficiency of the mixing element, in the embodiment of the utility model, the mixing element comprises a plurality of spiral blades, and the spiral blades are arranged between the guide element and the inner wall of the main pipeline, so that the mixing of the fluid by the mixer can be completed only by the kinetic energy of the fluid when the fluid is input on the mixer; since the plurality of spiral blades of the mixing member are installed between the guide member and the inner wall of the main pipe, the mixing member produces a stirring-like effect on the fluid when the fluid flows through the mixing member, and the mixing member further improves the mixing efficiency of the fluid in the pipe mixer.

Further, the guide piece comprises a first cone, a guide piece main body and a second cone, wherein the guide piece main body is positioned in the main pipeline and a gap is reserved between the guide piece main body and the main pipeline, the spiral blades are positioned in the gap, one end of the guide piece main body is connected with the first cone, and the other end of the guide piece main body is connected with the second cone;

the axes of the first cone, the guide body and the second cone coincide with the axis of the main pipe.

In order to enhance the guiding action of the guide member on the fluid flowing into the main pipe, the mixed fluid flowing through the guide member is split and guided by the tapered structure of the cone when the mixed fluid flows through the cone near the inlet of the main pipe; since the spiral blades are installed in the gap formed between the inner wall of the main pipe and the guide body, when the fluid flows through the gap, the split and guided fluid can be directly mixed through the gap formed by the mixing piece. Because the axes of the first cone, the guide piece main body and the second cone are coincident with the axis of the main pipeline, the probability of diversion and guiding of the fluid in the main pipeline through the cones is increased, and therefore the mixing degree of the fluid by the mixing piece is further improved. After the fluid split by the cone in the main pipeline is mixed, the converging can be realized through the cone structure of the second cone, so that the fluid can be mixed again in the pipeline serving as the output pipeline in the main pipeline, and the mixing sufficiency of the fluid in the pipeline mixer is ensured.

Further, the first cone is positioned at one end of the inlet of the main pipeline, and the second cone is positioned at one end of the outlet of the main pipeline;

the spiral blades are uniformly distributed circumferentially around the first cone and the guide body.

In the embodiment of the utility model, the first cone is arranged on one side of the guide piece main body close to the inlet of the main pipeline, and in order to improve the mixing efficiency of the spiral blades on the fluid in the pipeline mixer, a plurality of spiral blades are uniformly distributed circumferentially around the first cone and the guide piece main body; in this way, the installation of a plurality of spiral blades distributed in the circumferential direction on the first cone and the guide main body can fully simulate the rotary stirring action of the stirring device on the mixed fluid; when the spiral blades are uniformly distributed, it is also possible to avoid that the mixing member cannot sufficiently rotate the mixed fluid due to too dense or too dispersed distribution of the spiral blades, and the probability of generation of scale in the mixer increases.

Further, the pipeline mixer further comprises a bypass pipeline, and the bypass pipeline is connected with the side face of the main pipeline and is communicated with the main pipeline.

In order to increase the flow rate of the pipeline mixer in the same time, the pipeline mixer further comprises a bypass pipeline, and in the embodiment of the utility model, when the mixed fluid is simultaneously input into the main pipeline and the bypass pipeline after the sewage is mixed with the flocculating agent, the flow rate of the mixed fluid through the pipeline mixer in the same time is increased due to the fact that the mixed fluid has kinetic energy, and in addition, the mixed fluid is continuously supplied into the main pipeline due to the bypass pipeline, so that the phenomenon that the pressurizing acceleration of the mixed fluid by the necking cone pipe is not realized due to the insufficient input of the mixed fluid into the main pipeline is not easy to occur in the pipeline mixer. In another embodiment of the present utility model, the main pipe is used for inputting sewage, the bypass pipe is used for inputting flocculant, and the flocculant is not required to be mixed with the sewage in advance because the flocculant is input into a pipe mixer through the bypass pipe, so that simplification of a dehydration reduction work flow of the sewage can be realized.

Further, the outlet of the bypass pipe is opposite to the mixer.

In the embodiment of the utility model, the bypass pipeline is used for inputting fluid into the main pipeline, and the pipeline mixer is internally provided with a mixer; the scale formation is easy to occur in the process of mixing the fluid by the mixer, so that the circulation performance of the fluid in the pipeline mixer is greatly reduced due to the scale formation in the mixer, and the mixer needs to be cleaned regularly in order to ensure the normal working state of the pipeline mixer; in order to reduce the cleaning difficulty of the pipeline mixer, the outlet of the bypass pipeline is opposite to the mixer; therefore, when the pipeline mixer is cleaned later, high-pressure water or gas can be directly introduced into the bypass pipeline, and the inner wall of the main pipeline is continuously flushed after the guide piece is used for diversion compression, so that the pipeline mixer is cleaned on line without disassembly. In addition, the fluid output by the bypass pipeline directly enters the mixer to carry out split-flow pressurization, the fluid after the split-flow pressurization is mixed with the fluid input by the main pipeline, the free mixing degree between the fluids is further reduced, and the mixing degree of the fluids in the pipeline mixer is further improved.

In summary, compared with the prior art, the utility model has the following beneficial effects: the pipeline mixer has a simple structure and is convenient to produce and manufacture; the pipeline mixer is free of moving parts, small in resistance is suffered in the working process, and the practicability of the pipeline mixer is further improved. In addition, the reducing main pipe and the mixer of the pipe mixer can compress and accelerate the fluid input into the pipe mixer, so that the mixing effect between the fluids in the pipe mixer is enhanced. The pipeline mixer is also provided with a bypass pipeline, so that the pipeline mixer can be cleaned through the bypass pipeline, and the cleaning difficulty of the pipeline mixer is greatly reduced.

Drawings

The accompanying drawings, which are included to provide a further understanding of embodiments of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model. In the drawings:

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a side view of the present utility model;

FIG. 3 is a cross-sectional view of the present utility model;

fig. 4 is a schematic view of another view structure of the present utility model.

The names corresponding to the reference numerals are: 1. a main pipe; 1-1, a first pipeline; 1-2, a necking cone; 1-3, a second pipeline; 2. a bypass conduit; 3. a mixer; 3-1, a guide body; 3-2, spiral blades; 3-3, a first cone; 3-4, a second cone.

Detailed Description

For the purpose of making apparent the objects, technical solutions and advantages of the present utility model, the present utility model will be further described in detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present utility model and the descriptions thereof are for illustrating the present utility model only and are not to be construed as limiting the present utility model.

Examples:

as shown in fig. 1 to 4, in the present embodiment, the pipe mixer includes a main pipe 1, the main pipe 1 including a first pipe 1-1, a flare 1-2, and a second pipe 1-3; one end of the necking cone pipe 1-2 is connected with the first pipeline 1-1, and the other end of the necking cone pipe is connected with the second pipeline 1-3; through the communication arrangement of the necking cone 1-2, the first pipeline 1-1 and the second pipeline 1-3, the mixed fluid is input into the pipeline mixer through the pipeline connected with the large diameter end of the necking cone 1-2 after being mixed, and the mixed fluid is pressurized and accelerated in the main pipeline 1 after passing through the main pipeline 1 with a large inlet and a small outlet. In this embodiment, a first pipe 1-1 with a port diameter matched with the large diameter end of the cone pipe 1-2 and a second pipe 1-3 with a small diameter end matched with the cone pipe 1-2 may be used; in this way, the first pipe 1-1 can be communicated with the large diameter end of the necking cone 1-2, and the small diameter end of the necking cone 1-2 can be communicated with the second pipe 1-3; by the arrangement of the first pipe 1-1, a sufficient flow is always maintained in the pipe mixer; through the arrangement of the second pipeline 1-3 as the output fluid pipeline, the fluid can be fully mixed in the second pipeline 1-3 and then discharged after being mixed by the pipeline mixer, and at the moment, the fluid keeps a certain flow velocity, so that the probability of scaling of the fluid in the inner wall of the main pipeline 1 is reduced. In this embodiment, the pipe mixer further comprises a mixer 3, the mixer 3 being mounted within the main pipe 1; a space for the flow of the input fluid may be provided between the mixer 3 and the inner wall of the main pipe 1, whereby the degree of mixing of the fluid in the pipe mixer is increased due to the further pressurization and acceleration of the fluid in the mixer 3 as the flow space of the fluid is reduced when the fluid is mixed by the mixer 3. In this embodiment, in order to enhance the mixing effect of the mixer 3 on the fluid, the mixer 3 may be installed in the reduced-diameter cone 1-2, so that the gap between the mixer 3 and the inner wall of the main pipe 1 is further reduced, and the mixing degree of the fluid in the pipe mixer is further enhanced.

In this embodiment, the mixer 3 comprises a guide and a mixing element; the mixing element is fixed with the inner wall of the main pipeline 1, and the guiding element is connected with the mixing element and can guide the fluid into the mixing element; because the guide piece and the mixing piece are both fixed in the main pipeline 1, the pipeline mixer does not contain movable parts, so that the pipeline mixer is small in resistance when in work, and the working reliability of the pipeline mixer is improved. When the fluid flows through the mixer 3, the guide member divides and guides the fluid, and the divided fluid is dispersed and then mixed by the mixing member, so that the mixing member can achieve more sufficient mixing of the fluid.

In this embodiment, the mixing element is used as a component for fully mixing the fluid, and in order to ensure that the fluid can be fully mixed in the pipe mixer, the mixing element includes a plurality of spiral blades 3-2; in order to improve the structural stability of the pipe mixer, the helical blades 3-2 are mounted between the guide and the inner wall of the main pipe 1. By installing a plurality of spiral blades 3-2 on the guide member and the inner wall of the main pipeline 1, the mixing member can simulate stirring action on the fluid input into the mixing member, and when the fluid flows through the mixing member, the fluid can be continuously mixed in the mixer 3 due to the kinetic energy of the fluid, so that the mixing degree of the fluid in the pipeline mixer is improved.

In this embodiment, the guide member as a guide for the split flow of the fluid includes a first cone 3-3, a guide body 3-1, and a second cone 3-4, one end of the guide body 3-1 is connected to the first cone 3-3, and the other end of the guide body 3-1 is connected to the second cone 3-4; the guide piece main body 3-1 is positioned in the main pipeline 1 and a gap is reserved between the guide piece main body and the main pipeline 1, and the spiral blades 3-2 are positioned in the gap; in this way, the relative positions of the first cone 3-3 and the second cone 3-4 can be fixed by the arrangement of the guide body 3-1, and the spiral blade 3-2 can fix the guide; after the fluid is split and guided by the cone, the split and guided fluid can directly enter the gap of the mixing piece for mixing because the spiral blade 3-2 is arranged on the guide piece main body 3-1. In this embodiment, when the fluid flows through the cone, the axis of the guiding element coincides with the axis of the main pipe 1, so that the guiding element can achieve a better diversion guiding effect on the fluid, and the situation that the guiding element is installed too high or too low in the main pipe, so that insufficient diversion of the fluid is caused, and the mixing effect of the mixing element on the fluid is affected is avoided. In this embodiment, the first cone 3-3 and the second cone 3-4 may be both configured as cones with consistent radii of bottom surfaces, and the bottom surfaces of the cones of the first cone 3-3 and the second cone 3-4 are both connecting surfaces for connecting the guide body 3-1. As such, the first cone 3-3 may be installed at a side of the guide body 3-1 near the inlet, and the second cone 3-4 may be installed at a side of the guide body 3-1 near the outlet; in order to ensure the diversion and guiding functions of the first cone 3-3 on the fluid and avoid the phenomenon that the mixed fluid is too fast when the second cones 3-4 are combined and discharged out of the pipeline mixer without being fully mixed, the first cone 3-3 can be a cone with the height being half of the length of the input pipeline, and the second cone 3-4 can be a cone with the height being one third of the length of the output pipeline.

In this embodiment, the guide body 3-1 may be provided as a cylinder. Since the guide member is fixed to the inner wall of the main pipe 1 through the mixing member, the guide member main body 3-1 is configured as a cylinder, so that the increase of the difficulty in connecting the guide member by the mixing member due to the excessive weight of the guide member main body 3-1 can be avoided.

In this embodiment, the first cone 3-3 is located at one end of the inlet of the main pipe 1, and the second cone 3-4 is located at one end of the outlet of the main pipe 1; in order to further enhance the mixing effect of the helical blades 3-2 on the fluid, the helical blades 3-2 are uniformly distributed circumferentially around both the first cone 3-3 and the guide body 3-1; in this way, after the fluid introduced into the main pipe 1 is branched and guided by the first cone 3-3, the fluid is mixed by the mixer mounted on the first cone 3-3 before entering the mixer mounted on the guide body 3-1, and the mixing degree of the fluid in the pipe mixer is further improved. In this embodiment, the fluid introduced into the mixing element via the guiding element, since the distribution of the helical blades 3-2 on the first cone 3-3 extends to the guiding element body 3-1, the mixing element has a distance long enough to cause the fluid to rotate when the fluid is mixed in the helical channel formed by the helical blades 3-2 and the guiding element; in this way, the mixing element may simulate the stirring action of a stirring device on the fluid as it moves within the mixing element, and such stirring action does not rely on a power device. Thus, in the present embodiment, the pipe mixer can not only avoid the problem of large resistance of the power plant, but also improve the mixing efficiency of the fluid by the mixing element.

In this embodiment, the pipe mixer further comprises a bypass pipe 2, the bypass pipe 2 being connected to a side of the main pipe 1 and communicating with the main pipe 1. Thus, when the main pipe 1 and the bypass pipe 2 are inputting the same type of fluid, the mixed fluid can be input through the first pipe 1-1 or the bypass pipe 2; in this way, the throughput of the pipe mixer is increased in unit time, and the reduced-diameter cone pipe 1-2 can achieve more sufficient pressurizing acceleration effect on the fluid with the increased input quantity, so that the mixing degree of the pipe mixer on the mixed fluid is improved. One of the application scenarios of this embodiment is that the dewatering and reducing operation of the sludge is performed, the fluid input into the pipeline mixer contains sewage and flocculant, the sewage is input through the main pipeline 1, and when the flocculant is input through the bypass pipeline 2, the dewatering and reducing process of the sewage is simplified because different fluids are directly input into the pipeline mixer and then mixed.

In this embodiment, the outlet of the bypass duct 2 is directly opposite to the mixer 3; thus, the fluid input through the bypass pipeline 2 can be directly split and guided through the guide piece and then mixed with other fluids; meanwhile, the outlet of the bypass pipeline 2 is opposite to the mixer 3, so that the generation probability of scaling in the main pipeline 1 can be reduced. Because the mixer 3 is used as an important part of a pipeline mixer, in the mixing process, scaling is very easy to generate on the mixer 3, and the pipeline mixer can be cleaned in a manner of avoiding disassembling the pipeline mixer and directly inputting air flow to the bypass pipeline 2 through the arrangement of the outlet of the bypass pipeline 2 to the mixer 3.

The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the utility model, and is not meant to limit the scope of the utility model, but to limit the utility model to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the utility model are intended to be included within the scope of the utility model.

Claims (7)

1. A pipeline mixer comprising a main pipeline (1) and a mixer (3), wherein the main pipeline (1) comprises a first pipeline (1-1) and a second pipeline (1-3), and is characterized in that the main pipeline (1) further comprises a necking cone (1-2), one end of the necking cone (1-2) is connected with the first pipeline (1-1), and the other end of the necking cone is connected with the second pipeline (1-3);

the first pipeline (1-1), the necking taper pipe (1-2) and the second pipeline (1-3) are sequentially communicated;

the mixer (3) is arranged in the main pipeline (1), and the mixer (3) is used for mixing fluid in the main pipeline (1).

2. A pipe mixer according to claim 1, characterized in that the mixer (3) comprises a guide and a mixing element, the mixing element being fixed to the inner wall of the main pipe (1), the guide being connected to the mixing element and being capable of introducing the fluid into the mixing element.

3. A pipe mixer according to claim 2, characterized in that the mixing element comprises a number of helical blades (3-2), the number of helical blades (3-2) being mounted between the guide and the inner wall of the main pipe (1).

4. A pipe mixer according to claim 3, wherein the guide comprises a first cone (3-3), a guide body (3-1) and a second cone (3-4), the guide body (3-1) being located in the main pipe (1) with a gap between the guide body and the main pipe (1), the helical blade (3-2) being located in the gap, one end of the guide body (3-1) being connected to the first cone (3-3), the other end of the guide body (3-1) being connected to the second cone (3-4);

the axes of the first cone (3-3), the guide body (3-1) and the second cone (3-4) coincide with the axis of the main pipe (1).

5. A pipe mixer according to claim 4, characterized in that the first cone (3-3) is located at one end of the inlet of the main pipe (1) and the second cone (3-4) is located at one end of the outlet of the main pipe (1);

the spiral blades (3-2) are uniformly distributed circumferentially around the first cone (3-3) and the guide body (3-1).

6. A pipe mixer according to claim 1, characterized in that the pipe mixer further comprises a bypass pipe (2), which bypass pipe (2) is connected to the side of the main pipe (1) and communicates with the main pipe (1).

7. A pipe mixer according to claim 6, characterized in that the outlet of the bypass pipe (2) is facing the mixer (3).