阅读说明：本技术 一种单入口多通道式进料体水力旋流器 (Single-inlet multi-channel feed body hydrocyclone ) 是由 胡振涛 张宝金 陆占国 孙长胜 张东 英培壮 崔宝玉 于 2021-08-23 设计创作，主要内容包括：本发明公开了一种单入口多通道式进料体水力旋流器,包括进料体、旋流腔、溢流管和沉砂口。本发明的进料体为阿基米德螺旋线进料体,包角为360°,螺旋下倾角为0°～10°,其内部设置有若干阿基米德螺旋线分隔板,将进料体分成若干等距的狭长通道,分隔板末端相对于腔体中心呈旋转对称并与腔体内壁相切,从而形成单入口多通道式旋转对称流道。工作时,物料由进料体入口给入,在阿基米德螺旋流分隔板的分割和导流作用下,形成若干流型相似的涡旋流体,并以相切的方式平滑且对称地射入到旋流腔中,解决了单入口结构引起的流场不对称、紊流强度高和分离精度低等问题,降低了进料体磨损速度,增加了水力旋流器处理量和分离精度,便于实践应用。(The invention discloses a single-inlet multi-channel feed body hydrocyclone, which comprises a feed body, a vortex cavity, an overflow pipe and a sand setting port. The feed body is an Archimedes spiral feed body, the wrap angle is 360 degrees, the spiral downward inclination angle is 0-10 degrees, a plurality of Archimedes spiral partition plates are arranged in the feed body, the feed body is divided into a plurality of equidistant long and narrow channels, and the tail ends of the partition plates are rotationally symmetrical relative to the center of the cavity and tangent to the inner wall of the cavity, so that a single-inlet multi-channel rotationally symmetrical channel is formed. When the device works, materials are fed from a feed body inlet, a plurality of vortex fluids with similar flow patterns are formed under the cutting and flow guiding effects of the Archimedes spiral flow partition plate, and are smoothly and symmetrically injected into the vortex cavity in a tangent mode, so that the problems of asymmetric flow fields, high turbulence intensity, low separation precision and the like caused by a single inlet structure are solved, the wear speed of the feed body is reduced, the handling capacity and the separation precision of the hydrocyclone are increased, and the device is convenient to practice and apply.)

1. A single-inlet multi-channel feed body hydrocyclone comprises a feed body, a rotational flow cavity, an overflow pipe and an underflow pipe, and is characterized in that the feed body is arranged at the upper end of the rotational flow cavity and communicated with the rotational flow cavity, the feed body consists of a linear feed pipe and an Archimedes spiral feed channel, the outer side of the linear feed pipe is tangent to the outer side of the Archimedes spiral feed channel, the inner side of the linear feed pipe is tangent to the rotational flow cavity, and the Archimedes spiral feed channel wraps the rotational flow cavity and is tangent to the rotational flow cavity at the tail end of the rotational flow cavity; the overflow pipe is arranged at the top of the material feeding body and is coaxially communicated with the cyclone cavity, one end of the overflow pipe is inserted into the cyclone cavity, and the other end of the overflow pipe is led out of the cyclone cavity; the rotational flow cavity is a single cylindrical cavity or a combination of a cylindrical cavity and a conical cavity; the underflow pipe is arranged at the bottom of the rotational flow cavity and is coaxially communicated with the rotational flow cavity.

2. The single-inlet, multi-channel feed body hydrocyclone according to claim 1, wherein the Archimedes' spiral feed channel has a 360 ° super wrap angle with a spiral downtilt angle of 0 ° -10 °.

3. The single-inlet multi-channel feed body hydrocyclone according to claim 1, characterized in that a plurality of linear partition plates are arranged inside the linear feed pipe to divide the fluid equally into portions and to lead them to the corresponding Archimedes' spiral feed channels.

4. The single-inlet multi-channel feed body hydrocyclone according to claim 3, characterized in that a plurality of equidistant Archimedes spiral partition plates are arranged in the Archimedes spiral feed channel, and the Archimedes spiral feed channel is divided into a plurality of narrow and long channels with equal width, and the narrow and long channels are in one-to-one correspondence with the straight partition plates.

5. The single-inlet multi-channel feed body hydrocyclone according to claim 3, characterized in that the linear feed tube is internally provided with a number of linear partition plates not less than 1.

Technical Field

The invention relates to the technical field of material separation, in particular to a single-inlet multi-channel feed body hydrocyclone.

Background

With the development of modern industry and scientific technology, the requirements on various industrial raw materials and finished products become stricter day by day, and the importance of separation as key operation for regulating and controlling and guaranteeing the product quality at each stage in each industrial field is self-evident. The hydrocyclone is a typical separation device based on a centrifugal force field, the separation is substantially that particles with different densities and different particle sizes have different motion behaviors in the cyclone composite force field, and coarse and heavy particles are greatly influenced by the centrifugal force and are mainly discharged from a bottom flow pipe along with an external cyclone; the fine and light particles are greatly influenced by fluid drag force and pressure gradient force and are mainly discharged from the overflow pipe along with the internal rotational flow. Since the first industrial application in 1891, the hydrocyclone has been widely applied to the industries such as mining industry, chemical industry, medicine, environmental protection, petroleum, biology and the like due to the advantages of simple structure, low maintenance cost, large treatment capacity, small occupied area and the like. However, in practice hydrocyclones also gradually show some disadvantages, such as high energy consumption, severe wear, only limited separation particle size and separation accuracy.

The material feeding body is a flow guide device of the hydrocyclone, the geometric structure of the material feeding body directly influences energy consumption and wall surface abrasion, and simultaneously the stability and symmetry of an internal flow field of the hydrocyclone are determined. In industrial applications, the feed body of the hydrocyclone is mostly in a single-inlet single-channel form, and the material is introduced into the vortex cavity in a tangent mode, an involute mode, an Archimedes spiral mode, a tangent circle mode and the like. The feeding body has a simple structure and is convenient to arrange, but the energy consumption of the cyclone is high, the abrasion is serious, and the stability and the symmetry of a flow field are poor. Therefore, some researchers develop multi-inlet multi-channel feeding bodies, the stability and symmetry of a flow field are greatly improved, and a new problem is introduced, namely, the requirement of multi-inlet on the feeding balance is extremely high, the multi-inlet multi-channel feeding bodies are difficult to arrange compactly, and the application of the multi-inlet multi-channel feeding bodies in the industry is greatly limited. Therefore, the invention of a feeding body which combines the advantages of the two feeding modes is of great importance for the application of the cyclone.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide a single-inlet multi-channel feed body hydrocyclone, based on the characteristic that an Archimedes spiral line has gradually reducing and equal distance, a plurality of Archimedes spiral line partition plates are embedded in the Archimedes spiral line type single-inlet feed body, and a single channel is uniformly divided into multiple channels and symmetrically arranged around a cyclone cavity, so that the problems of stability and insufficient symmetry of a single channel of a flow field are solved, and the problems that the multi-channel feed requirement is high and the multi-channel feed cannot be compactly arranged are solved; meanwhile, the multiple channels are long and narrow in cross section, so that the problems of thin underflow clamp, thick overflow run and the like can be effectively solved, and the separation precision of the hydrocyclone is obviously improved.

The technical scheme adopted by the invention is as follows:

the invention relates to a single-inlet multi-channel feed body hydrocyclone, which comprises a feed body, a rotational flow cavity, an overflow pipe and an underflow pipe, and is characterized in that the feed body is arranged at the upper end of the rotational flow cavity and is communicated with the rotational flow cavity, the feed body consists of a linear feed pipe and an Archimedes spiral feed channel, the outer side of the linear feed pipe is tangent to the outer side of the Archimedes spiral feed channel, the inner side of the linear feed pipe is tangent to the rotational flow cavity, and the Archimedes spiral feed channel wraps the rotational flow cavity and is tangent to the rotational flow cavity at the tail end of the rotational flow channel; the overflow pipe is arranged at the top of the material feeding body and is coaxially communicated with the cyclone cavity, one end of the overflow pipe is inserted into the cyclone cavity, and the other end of the overflow pipe is led out of the cyclone cavity; the rotational flow cavity is a single cylindrical cavity or a combination of a cylindrical cavity and a conical cavity; the underflow pipe is arranged at the bottom of the rotational flow cavity and is coaxially communicated with the rotational flow cavity.

Further, the Archimedes spiral feeding channel has an ultra-large wrap angle of 360 degrees, and the spiral downward inclination angle is 0-10 degrees.

Furthermore, a plurality of linear partition plates are arranged in the linear feeding pipe, fluid is evenly divided into a plurality of parts and is guided into corresponding Archimedes spiral feeding channels.

Furthermore, a plurality of equidistant Archimedes spiral separation plates are arranged in the Archimedes spiral feeding channel, and the Archimedes spiral feeding channel is divided into a plurality of equal-width long and narrow channels which are in one-to-one correspondence with the linear separation plates.

Further, the inside a plurality of straight line division boards that are provided with of straight line inlet pipe quantity is no less than 1.

Compared with the prior art, the invention has the following advantages:

1. the single-inlet multi-channel feeding body is based on the single-inlet spiral feeding body, realizes the function of single-inlet symmetrical feeding by utilizing the Archimedes spiral characteristic under the condition of not increasing an external pipeline, and improves the separation efficiency and the separation precision;

2. according to the single-inlet multi-channel feeding body, the inner linear partition plates are uniformly distributed in the linear feeding pipes, so that the same property of materials entering each channel is ensured at the same time, and meanwhile, due to the gradual reducing and equidistant characteristics of Archimedes spiral lines, fluids in different channels have the same flow pattern and are uniformly distributed around the rotational flow cavity, so that the symmetry of feeding is ensured;

3. according to the single-inlet multi-channel feeding body, the internal linear partition plate, the Archimedes spiral partition plate and the rotational flow cavity barrel are connected in a tangent mode, so that the requirements of uniformity, smoothness, no bulge and no step are met, and the formation of vortex motion is facilitated.

4. The single-inlet multi-channel feed body designed by the invention can set two or more channels according to actual conditions, is suitable for hydrocyclones of all sizes and types, and is convenient to apply in various industries.

Drawings

Fig. 1 is a schematic structural diagram of a single-inlet multi-channel hydrocyclone provided by the invention.

FIG. 2 is a top sectional view of a single-inlet multi-channel feed block in example 1 of the present invention.

In the figure: 1-1, a linear feeding pipe; 1-2, an Archimedes spiral feeding channel; 1-3-1, a straight partition plate; 1-3-2, Archimedes spiral partition board; 2-1, cylindrical cavity; 2-2, a conical cavity; 3. an overflow pipe; 4. an underflow pipe.

Detailed Description

The invention will be further explained with reference to the drawings.

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in fig. 1, a single-inlet multi-channel feed body hydrocyclone is adopted in the present embodiment, and includes a feed body 1, a cyclone chamber 2, an overflow pipe 3 and an underflow pipe 4, wherein: the rotational flow cavity is a combination of a cylindrical cavity 2-1 and a conical cavity 2-2, and the cylindrical cavity 2-1 and the conical cavity 2-2 are connected through a flange; the feeding body is fixed at the upper end of the cylindrical cavity 2-1 in a welding mode and is coaxially communicated with the cylindrical cavity 2-1, and the spiral downward inclination angle of the feeding body is 0 degree; the overflow pipe 3 is fixed at the top cover of the material feeding body 1 in a welding mode, one end of the overflow pipe 3 is inserted into the cylindrical cavity 2-1, and the other end of the overflow pipe is led out of the cylindrical cavity 2-1; the underflow pipe 4 is arranged at the bottom of the conical cavity 2-2 in a flange connection mode and is coaxially communicated with the conical cavity 2-2.

As shown in fig. 1 and 2, the feeding body comprises a linear feeding pipe 1-1 and an archimedes spiral feeding channel 1-2, the linear feeding pipe 1-1 is tangent to the archimedes spiral feeding channel 1-2, the archimedes spiral feeding channel 1-2 covers the cyclone cavity 2 and is tangent to the cyclone cavity 2 at the tail end of the spiral feeding channel, and the linear feeding pipe 1-1 and the archimedes spiral feeding channel 1-2 are connected in a welding mode.

As shown in figure 2, two groups of partition plates are arranged in the feeding body, and each group of partition plates consists of a straight line partition plate 1-3-1 and an Archimedes spiral line partition plate 1-3-2; one end of the linear division plate 1-3-1 is inserted into about one third of the position of the linear feeding pipe 1-1, and the linear feeding pipe 1-1 is divided into three channels with completely equal cross sections; the straight line splitter plate 1-3-1 is connected with the corresponding Archimedes spiral line splitter plate 1-3-2 in a tangent mode; one end of the Archimedes spiral line partition plate 1-3-2 divides the Archimedes spiral line feeding channel 1-2 into three channels; the other end of the Archimedes spiral line partition plate 1-3-2 is tangent to the cylindrical cavity 2-1 and is uniformly distributed around the cylindrical cavity 2-1 to form an equidistant feeding hole. The Archimedes spiral feeding channel has an oversized wrap angle of 360 degrees, and the spiral downward inclination angle is 0-10 degrees.

When the feeding device works, materials are fed from a single inlet of a feeding body under the action of certain pressure, firstly, the materials are divided into three streams of fluid by a linear division plate 1-3-1 in a linear feeding pipe 1-1 and are respectively guided into corresponding spiral line channels 1-2, vortex motion is formed under the guide action of an Archimedes spiral line division plate 1-3-2, and finally, the three streams of fluid are respectively fed into a cylindrical cavity 2-1 tangentially and smoothly from three rotational symmetrical positions (0 degree, 120 degrees and 240 degrees), so that the function of single-channel symmetrical feeding is realized. When the flow field is stable, the single-inlet three-channel feed body hydrocyclone has higher flow field stability and symmetry than the conventional single-inlet single-channel hydrocyclone, the turbulence intensity is greatly reduced, and the treatment capacity of the hydrocyclone can be slightly improved. In addition, the divided channel has a larger height-width ratio, so that the deposition of coarse particles on the wall surface is facilitated, the overflow coarse-running is reduced, and meanwhile, the fine particles can be discharged into the inner rotational flow by the coarse particles, so that the fine clamping of the underflow is reduced.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.