CN215030125U

CN215030125U - Heavy-medium cyclone with long service life

Info

Publication number: CN215030125U
Application number: CN202121415940.9U
Authority: CN
Inventors: 袁照友; 张延振; 代圣钊
Original assignee: Shanxi Luzhong Coal Preparation Engineering Technology Co ltd
Current assignee: Shanxi Luzhong Coal Preparation Engineering Technology Co ltd
Priority date: 2021-06-24
Filing date: 2021-06-24
Publication date: 2021-12-07
Anticipated expiration: 2031-06-24

Abstract

The utility model provides a long service life's swirler that heavily is situated between, including the underflow mouth, the underflow mouth includes inner liner, filling layer, metal-back and flange, the inner liner is silicon carbide material, the filling layer is located between inner liner and the metal-back, the filling layer is pour through cement mortar, flange mounting is on the metal-back. The utility model discloses an underflow opening is as heavily mediating swirler guide part, is the part of bearing pressure, the velocity of flow, for heavy product discharge port, this underflow opening mainly has metal casing and carborundum inner liner to constitute, the carborundum inner liner bonds through the cement mortar that mobility is good and does not leave the gap filling between the metal casing inner wall and, realizes the inseparable combination of metal casing and carborundum, increased the life of underflow opening, and reduced the time and the cost of change, had very strong practicality.

Description

Heavy-medium cyclone with long service life

Technical Field

The utility model relates to a coal dressing technical field specifically is a long service life's dense medium swirler.

Background

The dense medium cyclone is a coal separation device with simple structure, no moving parts and high separation efficiency, along with the development of coal separation technology, dense medium coal separation is more and more favored by various coal separation design units and coal separation plants due to the strong adaptability to coal quality and high separation efficiency, and along with the development of society, the application of the dense medium cyclone is more and more extensive.

The bottom flow port of the original swirler is Al₂O₃The material is processed and manufactured, has a conical structure and is mainly applied to the underflow position of the heavy medium cyclone. Because the material that heavily is situated between swirler passes through is high-speed centrifugal rotation, the alumina ceramic wearing rate of underflow opening is very fast, and especially the wearing rate is the fastest for underflow opening diameter is little, and 400mm underflow opening live time is only 55 days, and 250mm underflow opening live time is only 20-30 days.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a long service life heavily is situated between swirler has wear-resisting through-put's underflow mouth.

To achieve the above objective, the present invention provides the following technical solutions: the utility model provides a long service life's swirler that heavily is situated between, includes the underflow mouth, and the underflow mouth includes inner liner, filling layer, metal-back and flange, the inner liner is silicon carbide material, the filling layer is located between inner liner and the metal-back, the filling layer is pour through cement mortar, flange mounting is on the metal-back.

Further, the utility model discloses in, still include pan feeding pipe, spiral case, overflow mouth, conic section one and conic section two, pan feeding pipe, spiral case, overflow mouth, conic section one and conic section two all communicate, the underflow mouth passes through the flange mounting on conic section two.

Further, the utility model discloses in, pan feeding pipe, spiral case, overflow mouth, conic section one and two inner walls of conic section all are provided with the insulator.

Further, the utility model discloses in, be provided with the overflow pipe in the overflow mouth, the overflow pipe extends to spiral case inside.

Further, the utility model discloses in, spiral case, overflow mouth, conic section one, conic section two and the axis of underflow mouth are on same straight line, the pan feeding pipe is the arc.

Further, the utility model discloses in, fixedly connected with mounting panel on the spiral case, the mounting hole has been seted up on the mounting panel.

Further, in the present invention, the porcelain bushing is made of alumina ceramics.

Further, in the present invention, the end of the underflow port has an extension section.

The beneficial effects are that the technical scheme of this application possesses following technological effect: the utility model discloses an underflow opening is as heavily mediating swirler guide part, is the part of bearing pressure, the velocity of flow, for heavy product discharge port, this underflow opening mainly has metal casing and carborundum inner liner to constitute, the carborundum inner liner bonds through the cement mortar that mobility is good and does not leave the gap filling between the metal casing inner wall and, realizes the inseparable combination of metal casing and carborundum, increased the life of underflow opening, and reduced the time and the cost of change, had very strong practicality.

It should be understood that all combinations of the foregoing concepts and additional concepts described in greater detail below can be considered as part of the inventive subject matter of the present disclosure unless such concepts are mutually inconsistent.

The foregoing and other aspects, embodiments and features of the present teachings can be more fully understood from the following description taken in conjunction with the accompanying drawings. Additional aspects of the present invention, such as features and/or advantages of exemplary embodiments, will be apparent from the description which follows, or may be learned by practice of the specific embodiments in accordance with the teachings of the present invention.

Drawings

The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of various aspects of the present invention will now be described, by way of example, with reference to the accompanying drawings, in which:

fig. 1 is a schematic view of the cross-sectional structure of the underflow port of the present invention.

Fig. 2 is a schematic structural diagram of the dense medium cyclone of the present invention.

Fig. 3 is a schematic structural diagram of the dense medium cyclone of the present invention.

In the figures, the meaning of the reference numerals is as follows: 1. a underflow port; 2. an extension section; 3. a second conical section; 4. a first conical section; 5. a volute; 6. a feeding pipe; 7. an overflow port; 101. an inner liner layer 102, a filler layer; 103. a metal shell; 104. and (4) a flange.

Detailed Description

For a better understanding of the technical content of the present invention, specific embodiments are described below in conjunction with the accompanying drawings. In this disclosure, aspects of the present invention are described with reference to the accompanying drawings, in which a number of illustrative embodiments are shown. Embodiments of the present disclosure are not necessarily intended to include all aspects of the invention. It should be appreciated that the various concepts and embodiments described above, as well as those described in greater detail below, may be implemented in any of numerous ways, as the disclosed concepts and embodiments are not limited to any implementation. Additionally, some aspects of the present disclosure may be used alone or in any suitable combination with other aspects of the present disclosure.

Example (b): the original underflow port of the 1500mm and 1000mm heavy medium cyclone of the China coal preparation plant is Al₂O₃The material, the live time is about 55 and 30 days just need to change the underflow opening, and it is comparatively heavy to overflow the part, and it is comparatively troublesome to maintain the dismantlement, and the transport is difficult, has great safety risk.

The long-service-life dense medium cyclone provided by the embodiment, as shown in fig. 1-3, includes a underflow port 1, which is installed and replaced in the same manner as the original manner, but the wear resistance is improved substantially, the service time is 7 times and 5 times of the original underflow port, and the comprehensive benefit is improved by 700% and 500% or more, that is, the service time is improved by 7 times and 5 times from the original 55 days and 30 days, specifically, the underflow port 1 includes an inner liner 101, a filling layer 102, a metal shell 103 and a flange 104, the inner liner 101 is made of silicon carbide material, the filling layer 102 is located between the inner liner 101 and the metal shell 103, the filling layer 102 is poured by cement mortar, the silicon carbide inner liner 101 is bonded to the inner wall of the metal shell 103 through cement mortar with good fluidity without gap filling therebetween, so as to realize tight bonding between the metal shell and the silicon carbide, the flange 104 is installed on the metal shell 103, for connecting and mounting.

Wear-resisting material structure is optimized to this embodiment, original metal casing only is as the metal matrix, play the supporting role, and this embodiment metal casing 103 and the carborundum material that goes through the filling layer 102 bonding are responsible for supporting and wear-resisting, 1500mm heavily is situated between the swirler and improves more than 7 times in the in-service use in-process live time, reduce heavily to be situated between the swirler and change underflow opening 17 times, practice thrift repair time and add up to 63 hours, practice thrift artifical 7.9 workdays, practice thrift alumina ceramic underflow opening 17, 1000mm big taper angle heavily is situated between the swirler and improves more than 5 times in-process live time in actual practice, reduce heavily to be situated between the swirler and change underflow opening 15 times, practice thrift repair time and add up to 20 hours, practice thrift artifical 2.5 workdays, practice thrift alumina ceramic underflow opening 15.

The dense medium cyclone in the embodiment further comprises a feeding pipe 6, a volute 5, an overflow port 7, a first conical section 4 and a second conical section 3, wherein the feeding pipe 6, the volute 5, the overflow port 7, the first conical section 4 and the second conical section 3 are all communicated, and the underflow port 1 is installed on the second conical section 3 through a flange 104. Porcelain sleeves are arranged on the inner walls of the feeding pipe 6, the volute 5, the overflow port 7, the first conical section 4 and the second conical section 3, and the porcelain sleeves are made of alumina ceramics. An overflow pipe is arranged in the overflow port 7 and extends towards the interior of the volute 5. The central axes of the volute 5, the overflow port 7, the first conical section 4, the second conical section 3 and the underflow port 1 are collinear, and the feeding pipe 6 is arc-shaped. The volute casing 5 is fixedly connected with a mounting plate, and mounting holes are formed in the mounting plate. The cyclone with the heavy medium can be conveniently installed by matching the installation plate with the installation hole.

In addition, the end of the underflow port 1 is provided with an extension section 2, and the material can fall uniformly through the arrangement of the extension section 2.

In conclusion, the underflow port 1 of the present embodiment is a pressure-bearing and flow-rate-bearing component as a material guiding component of the dense medium cyclone, and is a heavy product discharge port, the underflow port 1 mainly comprises a metal shell 103 and a silicon carbide inner liner 101, the silicon carbide inner liner 101 is bonded on the inner wall of the metal shell through cement mortar with good fluidity without gap filling, so that the metal shell and the silicon carbide are tightly combined, the service life of the underflow port 1 is prolonged, the replacement time and cost are reduced, and the underflow port has strong practicability.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. The present invention is intended to cover by those skilled in the art various modifications and adaptations of the invention without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention is subject to the claims.

Claims

1. The utility model provides a long service life's dense medium swirler which characterized in that: including the underflow mouth, the underflow mouth includes inner liner, filling layer, metal-back and flange, the inner liner is silicon carbide material, the filling layer is located between inner liner and the metal-back, the filling layer is pour through cement mortar, flange mounting is on the metal-back.

2. A long-life dense medium cyclone according to claim 1, characterized in that: the spiral material feeding device is characterized by further comprising a material feeding pipe, a volute, an overflow port, a first conical section and a second conical section, wherein the material feeding pipe, the volute, the overflow port, the first conical section and the second conical section are all communicated, and the underflow port is arranged on the second conical section through a flange.

3. A long-life dense medium cyclone according to claim 2, characterized in that: porcelain sleeves are arranged on the inner walls of the feeding pipe, the volute, the overflow port, the first conical section and the second conical section.

4. A long-life dense medium cyclone according to claim 2, characterized in that: an overflow pipe is arranged in the overflow port and extends towards the interior of the volute.

5. A long-life dense medium cyclone according to claim 2, characterized in that: the central axes of the volute, the overflow port, the first conical section, the second conical section and the underflow port are on the same straight line, and the feeding pipe is arc-shaped.

6. A long-life dense medium cyclone according to claim 2, characterized in that: the volute is fixedly connected with a mounting plate, and the mounting plate is provided with a mounting hole.

7. A long-life dense medium cyclone according to claim 3, characterized in that: the porcelain bushing is made of alumina ceramics.

8. A long-life dense medium cyclone according to claim 3, characterized in that: the end of the underflow opening has an extension.