CN106195279B

CN106195279B - Rotary radiation bed

Info

Publication number: CN106195279B
Application number: CN201610827171.0A
Authority: CN
Inventors: 宋东升; 陆伟; 宋自力; 袁国庆; 李俊奇; 赵创
Original assignee: Xinjiang Guanghui Coal Clean Refining & Chemical Co ltd
Current assignee: Xinjiang Guanghui Coal Clean Refining & Chemical Co ltd
Priority date: 2016-09-12
Filing date: 2016-09-12
Publication date: 2024-04-26
Anticipated expiration: 2036-09-12
Also published as: CN106195279A

Abstract

The invention provides a rotary radiation bed, comprising: rotating the cylinder; the cover body is arranged at one axial end of the rotary cylinder body and is fixedly arranged relative to the rotary cylinder body; the buffer sealing assembly is arranged at the joint gap of the rotary cylinder body and the cover body and comprises a first sealing structure and a buffer structure, wherein the first sealing structure is continuously arranged around the outer wall surface of the rotary cylinder body, the buffer structure is arranged on the cover body, and the buffer structure is abutted with the first sealing structure to buffer the shaking of the rotary cylinder body and seal the joint gap. The invention solves the problem of poor tightness of the rotary radiation bed in the prior art.

Description

Rotary radiation bed

Technical Field

The invention relates to the field of chemical equipment, in particular to a rotary radiation bed.

Background

The rotary radiation bed generally needs to seal the joint of the rotary cylinder and the cover body, so as to avoid the dust and gas in the rotary radiation bed from leaking through the joint of the rotary cylinder and the cover body to cause environmental pollution during the working process of the rotary radiation bed.

The conventional rotary radiation bed is usually sealed by adopting a combined type fish scale flexible seal, the sealing mode cannot effectively seal the joint of the rotary cylinder body and the cover body, a certain leakage amount exists, and in the process of using the rotary radiation bed for a long time, the rotary radiation bed can expand axially or shake radially, so that the gap of the joint of the rotary cylinder body and the cover body becomes larger to cause the increase of the leakage amount, and the sealing mode of the conventional rotary radiation bed cannot effectively seal the joint of the rotary cylinder body and the cover body aiming at the problem of the increase of the leakage amount.

Disclosure of Invention

The invention mainly aims to provide a rotary radiation bed so as to solve the problem of poor sealing performance of the rotary radiation bed in the prior art.

In order to achieve the above object, the present invention provides a rotary radiation bed comprising: rotating the cylinder; the cover body is arranged at one axial end of the rotary cylinder body and is fixedly arranged relative to the rotary cylinder body; the buffer sealing assembly is arranged at the joint gap of the rotary cylinder body and the cover body and comprises a first sealing structure and a buffer structure, wherein the first sealing structure is continuously arranged around the outer wall surface of the rotary cylinder body, the buffer structure is arranged on the cover body, and the buffer structure is abutted with the first sealing structure to buffer the shaking of the rotary cylinder body and seal the joint gap.

Further, the buffer sealing assembly further comprises a first support ring plate, the first support ring plate is arranged on the cover body, and the buffer structure is connected with the cover body through the first support ring plate.

Further, the first support ring plate and the buffer structure enclose a pressure cavity, and a liquid inlet and a liquid outlet which are communicated with the pressure cavity are formed in the first support ring plate.

Further, the pressure cavity is filled with liquid, the liquid enters the pressure cavity through the liquid inlet and flows out of the pressure cavity through the liquid outlet, and the pressure of the pressure cavity is regulated through the liquid flow at the liquid inlet and the liquid outlet.

Further, an atomization hole is formed in the side wall, in contact with the first sealing structure, of the buffer structure, and the atomization hole is communicated with the pressure cavity.

Further, the buffer structure is made of metal.

Further, the buffer structure is a plurality of, and a plurality of buffer structures set gradually around the circumference of barrel.

Further, the rotary radiation bed further comprises a second support ring plate, the second support ring plate is arranged on the outer wall surface of the rotary cylinder, and the first sealing structure is arranged at the second support ring plate.

Further, the second support ring plate includes: the first plate body section is perpendicular to the outer wall surface of the rotary cylinder; the second plate body section is connected with the first plate body section, and the second plate body section is arranged at intervals with the outer wall surface of the rotary cylinder.

Further, the rotary cylinder body, the cover body, the buffer sealing assembly and the second supporting ring plate jointly enclose a sealing space, the sealing space is communicated with the connecting gap, the rotary radiation bed further comprises a second sealing structure, and the second sealing structure is arranged in the sealing space.

Further, the second sealing structure comprises a fixed part connected with the cover body and a follow-up part connected with the first plate body section, a bending flow passage is formed between the fixed part and the follow-up part, and the bending flow passage is communicated with the connecting gap.

Further, the first sealing structure is of a graphite structure and is divided into multiple layers along the axial direction of the rotary cylinder, and the rotary radiation bed further comprises connecting bolts which penetrate through the multiple layers of the first sealing structure.

Further, the two covers are respectively a bed cover arranged at the first end of the axial direction of the rotary cylinder body and a bed tail cover arranged at the second end of the axial direction of the rotary cylinder body.

By adopting the technical scheme of the invention, the buffer sealing assembly is arranged at the connecting gap between the rotary cylinder body and the cover body, so that the sealing performance between the rotary cylinder body and the cover body is improved.

Because the buffer seal assembly includes the first seal structure that revolutes the outer wall surface of rotating the barrel and set up the buffer structure on the cover body in succession, buffer structure and first seal structure butt are in order to cushion the rocking of rotating the barrel and to connect the clearance seal.

Like this, in the in-process of long-term use rotation formula radiation table, when rotation formula radiation table along its axial expansion or along its radial rocking, buffer structure has played the cushioning effect to the rotation barrel that rocks through deformation, buffer structure closely laminates with a seal structure all the time to make buffer seal assembly seal the connection clearance reliably, prevented that the high temperature dust-laden gas in the rotation formula radiation table from leaking in buffer structure and a seal structure's laminating department through the connection clearance to external environment, and then improved rotation formula radiation table's sealing performance.

Drawings

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

FIG. 1 illustrates a partial structural cross-sectional view of a rotating radiation bed according to an alternative embodiment of the invention; and

Fig. 2 shows an enlarged schematic view at a of the rotating radiation bed of fig. 1.

Wherein the above figures include the following reference numerals:

10. Rotating the cylinder; 11. a connection gap; 12. an outer wall surface; 13. sealing the space; 20. a cover body; 30. a buffer seal assembly; 31. a first sealing structure; 32. a buffer structure; 33. a first support ring plate; 331. a liquid inlet; 332. a liquid outlet; 34. a pressure chamber; 40. a second support ring plate; 41. a first plate segment; 42. a second plate segment; 50. a second sealing structure; 51. a fixing part; 52. a follower; 53. bending the runner; 60. and (5) connecting bolts.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In the description of the present invention, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present invention; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface on … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present invention.

The invention provides a rotary radiation bed for solving the problem of poor tightness of the rotary radiation bed in the prior art.

As shown in fig. 1 and 2, the rotary radiation bed comprises a rotary cylinder 10, a cover 20 and a buffer seal assembly 30, wherein the cover 20 is arranged at one axial end of the rotary cylinder 10, the cover 20 is fixedly arranged relative to the rotary cylinder 10, the buffer seal assembly 30 is arranged at a connecting gap 11 between the rotary cylinder 10 and the cover 20, the buffer seal assembly 30 comprises a first seal structure 31 continuously arranged around the outer wall surface 12 of the rotary cylinder 10 and a buffer structure 32 arranged on the cover 20, and the buffer structure 32 is abutted with the first seal structure 31 to buffer the shake of the rotary cylinder 10 and seal the connecting gap 11.

By providing the buffer seal assembly 30 at the connection gap 11 between the rotary cylinder 10 and the cap 20, the sealing performance between the rotary cylinder 10 and the cap 20 is improved.

Since the buffer seal assembly 30 includes the first seal structure 31 continuously provided around the outer wall surface 12 of the rotary cylinder 10 and the buffer structure 32 provided on the cover 20, the buffer structure 32 abuts against the first seal structure 31 to buffer the shake of the rotary cylinder 10 and seal the connection gap 11.

Like this, in the in-process of long-term use rotary radiation bed, when rotary radiation bed along its axial expansion or along its radial rocking, buffer structure 32 has played the cushioning effect to the rotation barrel 10 that rocks through deformation, buffer structure 32 is closely laminated with first seal structure 31 all the time to make buffer seal assembly 30 seal connection clearance 11 reliably, prevented that the high temperature dust-laden gas in the rotary radiation bed from leaking in the external environment through connection clearance 11 in buffer structure 32 and first seal structure 31's laminating department, and then improved rotary radiation bed's sealing performance.

As shown in fig. 2, the cushion seal assembly 30 further includes a first support ring plate 33, the first support ring plate 33 is disposed on the housing 20, and the cushion structure 32 is connected to the housing 20 through the first support ring plate 33. Thus, the first supporting ring plate 33 is fixedly arranged and is spaced from the rotating cylinder 10 in the circumferential direction around the rotating cylinder 10, and the buffer structure 32 is fixedly arranged on the first supporting ring plate 33, so that the first supporting ring plate 33 plays a role in stably supporting the buffer structure 32, and the buffer structure 32 is ensured to be stably attached to the first sealing structure 31.

Optionally, the buffer structure 32 is made of metal. Therefore, the buffer structure 32 has good heat transfer performance, and heat generated by friction between the buffer structure 32 and the first sealing structure 31 can be quickly transferred outwards through the buffer structure 32, so that sealing failure caused by overhigh temperature at the buffer structure 32 is avoided, and the working reliability of the rotary radiation bed is improved.

As shown in fig. 2, the first support ring plate 33 and the buffer structure 32 enclose a pressure chamber 34, and a liquid inlet 331 and a liquid outlet 332 that are communicated with the pressure chamber 34 are formed on the first support ring plate 33. In this way, the pressure cavity 34 has pressure, so that the side wall of the buffer structure 32 contacting the first sealing structure 31 receives the positive pressure force, the direction of the positive pressure force is shown in the direction C in fig. 2, and then the side wall of the buffer structure 32 is uniformly attached to the first sealing structure 31 under the effect of the positive pressure force, so that the sealing effectiveness of the buffer sealing assembly 30 is ensured.

Specifically, the pressure chamber 34 is filled with a liquid, the liquid enters the pressure chamber 34 through the liquid inlet 331 and exits the pressure chamber 34 through the liquid outlet 332, and the pressure of the pressure chamber 34 is regulated by the flow rates of the liquid at the liquid inlet 331 and at the liquid outlet 332. In this way, the pressure in the pressure cavity 34 can be stably controlled to adjust the expansion and contraction amount of the first sealing structure 31 along the radial direction of the rotary cylinder 10, and heat generated by friction between the buffer structure 32 and the first sealing structure 31 can be taken away by liquid circulating in the pressure cavity 34, so that the temperature of the buffer structure 32 is reduced, the service life of the first sealing structure 31 is prolonged, and the working reliability of the buffer sealing assembly 30 is improved.

The higher the pressure in the pressure chamber 34, the smaller the leakage amount of the high-temperature dust-containing gas at the junction of the buffer structure 32 and the first seal structure 31, and the higher the positive pressure level in the rotating radiation bed.

In an alternative embodiment of the invention, not shown, the side wall of the buffer structure 32 in contact with the first sealing structure 31 is provided with an atomizing orifice, which communicates with the pressure chamber 34. In this way, the liquid in the pressure chamber 34 is atomized at the contact position of the buffer structure 32 and the first sealing structure 31 through the atomization holes, so that the temperature of the contact position of the buffer structure 32 and the first sealing structure 31 is further reduced, and the sealing performance of the buffer sealing assembly 30 is improved.

Optionally, the liquid introduced into the pressure cavity 34 is lubricating oil, so that the lubricating oil can also lubricate the contact surface of the first sealing structure 31 and the buffer structure 32 through the atomization holes, thereby reducing the friction resistance suffered by the first sealing structure 31 and improving the transmission efficiency of the rotary radiation bed.

Optionally, the first sealing structure 31 is a graphite structure, the first sealing structure 31 is divided into multiple layers along the axial direction of the rotary cylinder 10, and the rotary radiation bed further includes a connection bolt 60, where the connection bolt 60 is disposed through the multiple layers of the first sealing structure 31. In this way, not only the graphite structure having the properties of temperature resistance and friction resistance is utilized, but also the mounting stability of the first sealing structure 31 is improved by the connecting bolt 60.

Alternatively, the buffer structures 32 are plural, and the plural buffer structures 32 are sequentially disposed around the circumference of the rotary cylinder 10. In this way, not only the circumferential sealing of the buffer seal assembly 30 to the connection gap 11 is realized, but also the deformation of the buffer structure 32 due to the overlarge torsion is avoided, and the working stability of the buffer structure 32 is improved.

As shown in fig. 2, the rotary radiation bed further includes a second support ring plate 40, the second support ring plate 40 is disposed on the outer wall surface 12 of the rotary drum 10, and the first sealing structure 31 is disposed at the second support ring plate 40.

As shown in fig. 2, the second support ring plate 40 includes a first plate body section 41 and a second plate body section 42, the first plate body section 41 is disposed perpendicular to the outer wall surface 12 of the rotary cylinder 10, the second plate body section 42 is connected to the first plate body section 41, and the second plate body section 42 is disposed at a distance from the outer wall surface 12 of the rotary cylinder 10. In this way, the mounting stability of the second seal structure 50 and the first seal structure 31 is improved.

As shown in fig. 2, the rotary cylinder 10, the cover 20, the buffer seal assembly 30 and the second support ring plate 40 together enclose a sealed space 13, the sealed space 13 is communicated with the connection gap 11, the rotary radiation bed further comprises a second seal structure 50, and the second seal structure 50 is arranged in the sealed space 13. In this way, the sealing space 13 is fully utilized, secondary sealing of the connecting gap 11 is formed, high-temperature dust-containing gas is effectively prevented from leaking to the outside, and the sealing reliability of the rotary radiation bed is improved.

As shown in fig. 2, the second sealing structure 50 includes a fixed portion 51 connected to the cover 20 and a follower portion 52 connected to the first plate segment 41, and a bent flow path 53 is formed between the fixed portion 51 and the follower portion 52, and the bent flow path 53 communicates with the connection gap 11. In this way, the second sealing structure 50 forms a labyrinth seal, and the high-temperature dust-containing gas flows along the bent flow channel 53, so that the stroke of the high-temperature dust-containing gas reaching the buffer sealing assembly 30 after passing through the connecting gap 11 is increased, the pressure of the high-temperature dust-containing gas is effectively reduced, and the leakage amount of the high-temperature dust-containing gas is reduced.

The path of the high-temperature dust-containing gas flowing in the folded flow path 53 is shown as a path B in fig. 2. The high temperature dust-containing gas generated in the rotary radiation bed flows into the combustion chamber of the rotary cylinder 10, flows into the cavity of the cover 20, and flows from the cavity of the cover 20 to the connection gap 11. The flow path of the high temperature dust-laden gas within the combustion chamber of the rotating cylinder 10 and within the chamber of the shroud 20 is shown as path D in fig. 1.

Furthermore, the second sealing structure 50 has the characteristic of simple structure.

Alternatively, the fixed portion 51 and the follower portion 52 are both made of steel. Because steel is convenient for purchase and processing and installation, consequently, reduced the manufacturing cost of processing of second seal structure 50, while improving reincarnation radiation bed sealing performance, still reduced the economic nature of changeing the radiation bed.

Alternatively, there are two covers 20, and the two covers 20 are respectively a head cover disposed at a first end in the axial direction of the rotary cylinder 10 and a tail cover disposed at a second end in the axial direction of the rotary cylinder 10.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the application described herein may be implemented in sequences other than those illustrated or otherwise described herein.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A rotating radiation bed, comprising:

a rotary cylinder (10);

The cover body (20) is arranged at one axial end of the rotary cylinder body (10), and the cover body (20) is fixedly arranged relative to the rotary cylinder body (10);

The buffer sealing assembly (30), the buffer sealing assembly (30) is arranged at the connecting gap (11) of the rotary cylinder body (10) and the cover body (20), the buffer sealing assembly (30) comprises a first sealing structure (31) continuously arranged around the outer wall surface (12) of the rotary cylinder body (10) and a buffer structure (32) arranged on the cover body (20), and the buffer structure (32) is abutted with the first sealing structure (31) to buffer the shaking of the rotary cylinder body (10) and seal the connecting gap (11);

the buffer sealing assembly (30) further comprises a first supporting annular plate (33), the first supporting annular plate (33) is arranged on the cover body (20), and the buffer structure (32) is connected with the cover body (20) through the first supporting annular plate (33);

The first support ring plate (33) and the buffer structure (32) enclose a pressure cavity (34), and a liquid inlet (331) and a liquid outlet (332) which are communicated with the pressure cavity (34) are formed in the first support ring plate (33);

the pressure cavity (34) is filled with liquid, the liquid enters the pressure cavity (34) through the liquid inlet (331) and flows out of the pressure cavity (34) through the liquid outlet (332), and the pressure of the pressure cavity (34) is regulated through the liquid flow rate at the liquid inlet (331) and the liquid outlet (332);

An atomization hole is formed in the side wall, which is in contact with the first sealing structure (31), of the buffer structure (32), and the atomization hole is communicated with the pressure cavity (34);

The rotary radiation bed further comprises a second support ring plate (40), the second support ring plate (40) is arranged on the outer wall surface (12) of the rotary cylinder body (10), and the first sealing structure (31) is arranged at the second support ring plate (40).

2. A rotating radiation bed according to claim 1, characterized in that the buffer structure (32) is made of metal.

3. The rotating radiation bed according to claim 1, wherein the number of buffer structures (32) is plural, and the plurality of buffer structures (32) are sequentially arranged around the circumference of the rotating cylinder (10).

4. The rotating radiation bed according to claim 1, characterized in that the second support ring plate (40) comprises:

A first plate section (41), wherein the first plate section (41) is arranged perpendicular to the outer wall surface (12) of the rotary cylinder (10);

The second plate body section (42), second plate body section (42) with first plate body section (41) are connected, just second plate body section (42) with outer wall (12) interval setting of rotating barrel (10).

5. The rotating radiation bed according to claim 4, characterized in that the rotating cylinder (10), the cover body (20), the buffer seal assembly (30) and the second support ring plate (40) together enclose a sealed space (13), the sealed space (13) is communicated with the connection gap (11), the rotating radiation bed further comprises a second sealing structure (50), and the second sealing structure (50) is arranged in the sealed space (13).

6. The rotating radiation bed according to claim 5, characterized in that the second sealing structure (50) comprises a fixed part (51) connected with the cover body (20) and a follow-up part (52) connected with the first plate body section (41), a bending flow channel (53) is formed between the fixed part (51) and the follow-up part (52), and the bending flow channel (53) is communicated with the connecting gap (11).

7. The rotating radiation bed according to claim 1, characterized in that the first sealing structure (31) is a graphite structure, the first sealing structure (31) is divided into multiple layers along the axial direction of the rotating cylinder (10), the rotating radiation bed further comprises connecting bolts (60), and the connecting bolts (60) are arranged through the multiple layers of the first sealing structure (31).

8. The rotating radiation bed according to claim 1, wherein the number of the cover bodies (20) is two, and the two cover bodies (20) are respectively a bed head cover arranged at a first axial end of the rotating cylinder body (10) and a bed tail cover arranged at a second axial end of the rotating cylinder body (10).