CN211142076U

CN211142076U - Tuyere medium sleeve

Info

Publication number: CN211142076U
Application number: CN201922393886.1U
Authority: CN
Inventors: 乔军伍; 卢显富
Original assignee: Wuhan Keda Tajiang Hi Tech Co ltd
Current assignee: Wuhan Keda Tajiang Hi Tech Co ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-07-31
Anticipated expiration: 2029-12-26

Abstract

The utility model discloses an air port middle sleeve, wherein a front end sleeve body and a rear end sleeve body are welded into a whole and are formed with a hollow cavity, one end of the annularly arranged cavity, which is close to a water outlet, is provided with a flow guide body, the flow guide body divides the hollow cavity into a first water cavity, a second water cavity and a third water cavity, the first water cavity is communicated with the water inlet cavity, the third water cavity is communicated with a water outlet cavity, so that cooling liquid input by a water inlet is conveyed to the water outlet cavity from the first water cavity, the second water cavity and the third water cavity in a circulating manner in sequence and is discharged through the water outlet, and the air port middle sleeve realizes cooling; an assembly groove is formed in one end, far away from the rear end sleeve body, of the front end sleeve body, so that the tuyere small sleeve and the tuyere middle sleeve are connected and mounted in a sealing mode; the annular seal groove is formed in the outer side wall of the rear-end sleeve body, the seal groove is located between the water outlet and the grouting hole, and when the seal groove is in seal installation with the air port large sleeve, damage to the seal ring during grouting of the grouting hole is avoided.

Description

Tuyere medium sleeve

Technical Field

The utility model relates to the air supply field of an iron-making blast furnace, in particular to a tuyere medium sleeve.

Background

The blast furnace tuyere medium sleeve is one of the components of a blast furnace air supply device and is arranged between the tuyere large sleeve and the tuyere small sleeve, and the front end of the tuyere medium sleeve is inserted into the furnace wall to play the roles of supporting the tuyere small sleeve and connecting the tuyere large sleeve. The cooling channel that its inside setting is unreasonable on the one hand in current wind gap middle cover, has the not good situation of cooling effect, and on the other hand, adopt conical surface or sphere to seal between wind gap middle cover and the wind gap big cover more, all seal firmly, because of the precision error of equipment processing, take place the coal gas leakage after long-term the use easily. Therefore, the tuyere medium sleeve which has a good cooling effect and is convenient to be hermetically installed with the tuyere large sleeve is provided, and the problem to be solved is urgently solved.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a tuyere medium sleeve to solve the poor problem of cooling effect of aforementioned tuyere medium sleeve.

The utility model provides a scheme as follows of above-mentioned technical problem: a tuyere medium sleeve comprises a sleeve body and a flow guide body, wherein a hollow cavity is formed in the sleeve body, the flow guide body is arranged and installed in the cavity, the flow guide body comprises a partition plate and a rib plate, the partition plate and the rib plate divide the cavity and form a first water cavity, a second water cavity, a third water cavity, a water inlet cavity and a water outlet cavity, the first water cavity and the third water cavity are respectively communicated with the water inlet cavity and the water outlet cavity, the first water cavity is communicated with the second water cavity, and the second water cavity is communicated with the third water cavity; the rear end of the sleeve body is respectively provided with a water inlet and a water outlet, and the water inlet and the water outlet are respectively communicated with the water inlet cavity and the water outlet cavity; the rear end of the sleeve body is provided with a sealing groove to be assembled with the tuyere large sleeve and to be mounted in a sealing mode.

Preferably, the sleeve body comprises a front end sleeve body and a rear end sleeve body, and the front end sleeve body and the rear end sleeve body are welded into a whole.

Preferably, the flow guiding body is further partitioned into an inlet chamber and an outlet chamber in the cavity, and the inlet chamber and the outlet chamber are respectively communicated with the inlet chamber and the outlet chamber.

Preferably, the front end of the sleeve body is provided with an assembling groove used for being matched and connected with the tuyere small sleeve.

Preferably, the rear end of the sleeve body is provided with a through grouting hole, the sealing groove is arranged at an interval with the grouting hole, and the sealing groove is arranged at one end of the grouting hole close to the water inlet or the water outlet.

Preferably, the sealing groove surrounds the rear end of the sleeve body for a whole circle, and the inner concave surface of the sealing groove is arc-shaped.

The utility model provides a pair of wind gap middle cover has following beneficial effect: cooling liquid input from the water inlet is sequentially guided into the water inlet cavity, the first water cavity, the second water cavity, the third water cavity and the water outlet cavity through the water inlet chamber and flows out of the water outlet under the guidance of the water outlet chamber, and the plurality of water cavities which circularly flow around enable the cooling effect of the tuyere middle sleeve to be good; the sealing groove that encircles the distribution is seted up to the one end that wind gap center sleeve and wind gap major sheath connect the installation, and is good with the big cover leakproofness of wind gap under the effect of sealing washer, and the sealing groove sets up with the grout hole interval, has effectively avoided the harm of grout to the sealing washer.

Drawings

The accompanying drawings, which are described herein to provide a further understanding of the invention and constitute a part of this application, illustrate embodiments of the invention and together with the description serve to explain the invention without forming an undue limitation to the invention, in which:

fig. 1 is a plan view of an embodiment of a tuyere medium sleeve provided by the present invention;

fig. 2 is a sectional view of section a-a in fig. 1.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention. The invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more fully apparent from the following description and appended claims. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.

As shown in fig. 1-2, fig. 1 is a top view of an embodiment of a tuyere middle sleeve provided by the present invention, and fig. 2 is a sectional view of a section a-a in fig. 1. The tuyere middle sleeve comprises a sleeve body and a flow guide body 4, the sleeve body comprises a front end sleeve body 2 and a rear end sleeve body 3, the front end sleeve body 2 and the rear end sleeve body 3 are welded into a whole and form a hollow annular cavity, the flow guide body 4 is arranged and installed in the cavity, the flow guide body 4 comprises a partition plate 41 and a rib plate 42, the cavity is divided into a first water cavity 51, a second water cavity 52, a third water cavity 53, a water inlet cavity 61, a water outlet cavity 62, a water inlet chamber 71 and a water outlet chamber 72 under the separation of the partition plate 41 and the rib plate 42, the first water cavity 51 is communicated with the water inlet cavity 61, the first water cavity 51 is communicated with the second water cavity 52, the second water cavity 52 is communicated with the third water cavity 53, and the third water cavity 53 is communicated with the water outlet cavity 62; the left side wall of the rear end sleeve body 3 is respectively provided with a water outlet a and a water inlet b, the water outlet a is communicated with a water outlet chamber 72 formed in the annular cavity, the water inlet b is communicated with a water inlet chamber 71 in the annular cavity, and in order to enable cooling liquid introduced by the water inlet b to flow out of the water outlet a after being cooled circularly in the tuyere small sleeve, the water inlet chamber 61 and the water outlet chamber 62 are respectively communicated with the water inlet chamber 71 and the water outlet chamber 72, so that the tuyere small sleeve is cooled well under the circulating flow of the cooling liquid.

Further, the front end of the sleeve body, namely the end of the front end sleeve body 2 away from the rear end sleeve body 3, is further provided with an assembly groove 9 for connecting and installing with the tuyere small sleeve, and the assembly groove 9 comprises a plurality of annularly arranged grooves.

Further, the rear end of the sleeve body, namely one end of the rear end sleeve body 3 close to the water outlet a, is further provided with a sealing groove 8 which surrounds the outer side wall of the rear end sleeve body 3 by a whole circle, the sealing groove 8 is arc-shaped, so that the sealing ring is wrapped on the sealing groove 8 and is hermetically mounted with the air inlet large sleeve, particularly, a through grouting hole 1 is further formed in the outer side wall of the rear end sleeve body 3, the sealing groove 8 is arranged at the left end of the grouting hole 1 for avoiding damage to the sealing ring during grouting, and namely, the position between the grouting hole 1 and the water outlet a is arranged.

During specific implementation, one end of the front-end sleeve body 2, which is far away from the rear-end sleeve body 3, is hermetically mounted with the tuyere small sleeve under the connecting action of the assembling groove 9, and one end of the rear-end sleeve body 3, which is close to the water outlet a, is hermetically mounted with the tuyere large sleeve under the action of the sealing groove 8 and the sealing ring placed in the sealing groove 8; the cooling liquid is introduced into the water inlet b, the cooling liquid sequentially flows into the water inlet chamber 71 and the water inlet chamber 61 and then enters the first water cavity 51, the first water cavity 51 circles around, and then sequentially enters the second water cavity 52 and the third water cavity 53, and the surrounded cooling liquid sequentially flows through the water outlet cavity 62 and the water outlet chamber 72 and then is discharged from the water outlet a.

The utility model provides a wind gap middle sleeve, including the cover body and baffle, the cover body includes front end cover body and rear end cover body, front end cover body and rear end cover body weld an organic whole and form hollow cavity, the cavity that the annular set up is close to the one end of delivery port and is provided with the baffle, the baffle separates hollow cavity into first water cavity, second water cavity and third water cavity, first water cavity communicates with intake antrum, the third water cavity communicates with going out the water cavity, so that the cooling liquid that inputs the water inlet circulates in first water cavity, second water cavity and third water cavity in proper order and exports to going out the water cavity and discharging through the delivery port, the wind gap middle sleeve realizes cooling from this; an assembly groove is formed in one end, far away from the rear end sleeve body, of the front end sleeve body, so that the tuyere small sleeve and the tuyere middle sleeve are connected and mounted in a sealing mode; the annular seal groove is formed in the outer side wall of the rear-end sleeve body, the seal groove is located between the water outlet and the grouting hole, and when the seal groove is in seal installation with the air port large sleeve, damage to the seal ring during grouting of the grouting hole is avoided.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way; the present invention can be smoothly implemented by those skilled in the art according to the drawings and the above description; however, those skilled in the art should understand that changes, modifications and variations made by the above-described technology can be made without departing from the scope of the present invention, and all such changes, modifications and variations are equivalent embodiments of the present invention; meanwhile, any changes, modifications, evolutions, etc. of the above embodiments, which are equivalent to the actual techniques of the present invention, still belong to the protection scope of the technical solution of the present invention.

Claims

1. A tuyere medium sleeve is characterized in that: the sleeve body is provided with a hollow cavity, the flow deflector is arranged and installed in the cavity and comprises a partition plate and a rib plate, the partition plate and the rib plate divide the cavity and form a first water cavity, a second water cavity, a third water cavity, a water inlet cavity and a water outlet cavity, the first water cavity and the third water cavity are respectively communicated with the water inlet cavity and the water outlet cavity, the first water cavity is communicated with the second water cavity, and the second water cavity is communicated with the third water cavity; the rear end of the sleeve body is respectively provided with a water inlet and a water outlet, and the water inlet and the water outlet are respectively communicated with the water inlet cavity and the water outlet cavity; the rear end of the sleeve body is provided with a sealing groove to be assembled with the tuyere large sleeve and to be mounted in a sealing mode.

2. The tuyere medium sleeve of claim 1, wherein: the sleeve body comprises a front end sleeve body and a rear end sleeve body, and the front end sleeve body and the rear end sleeve body are welded into a whole.

3. The tuyere medium sleeve of claim 1, wherein: the flow deflector is also divided into an inlet chamber and an outlet chamber in the cavity, and the inlet chamber and the outlet chamber are respectively communicated with the inlet chamber and the outlet chamber.

4. The tuyere medium sleeve of claim 1, wherein: the front end of the sleeve body is provided with an assembling groove which is used for being matched and connected with the tuyere small sleeve.

5. The tuyere medium sleeve of claim 1, wherein: the rear end of the sleeve body is provided with a through grouting hole, the sealing groove and the grouting hole are arranged at intervals, and the sealing groove is arranged at one end, close to the water inlet or the water outlet, of the grouting hole.

6. The tuyere medium sleeve of claim 1, wherein: the seal groove surrounds the rear end of the sleeve body for a whole circle, and the concave surface of the seal groove is arc-shaped.