CN212692527U

CN212692527U - Rotary kiln door

Info

Publication number: CN212692527U
Application number: CN202021754221.5U
Authority: CN
Inventors: 朱连英
Original assignee: Jiangsu Nenghuan Electromechanical Technology Co ltd
Current assignee: Jiangsu Nenghuan Electromechanical Technology Co ltd
Priority date: 2020-08-21
Filing date: 2020-08-21
Publication date: 2021-03-12
Anticipated expiration: 2030-08-21

Abstract

The utility model provides a rotary kiln door, including kiln door frame, kiln door and hinge means, the kiln door includes left kiln door and the right kiln door of run from opposite directions, left side kiln door is through at least one hinge means connects on the kiln door frame, right side kiln door is through at least one hinge means connects on the kiln door frame, kiln door internal surface is equipped with the strengthening rib, the strengthening rib distributes for the net, the shape of net is the rhombus. The utility model discloses be provided with hinge means, the kiln door passes through hinge means and articulates in the kiln door frame, and the mode of opening and shutting becomes to open and shut outward around the axle by the guide rail translation originally, hinge means non-deformable, and do not receive the flexibility of temperature influence switch, improved the sealed effect of kiln door, and the kiln door switch is nimble. Meanwhile, the reinforcing ribs of the rhombic grids enhance the structural strength of the kiln door, prevent the kiln door from deforming and increase the sealing effect.

Description

Rotary kiln door

Technical Field

The utility model relates to a rotary kiln seal structure technical field specifically, relates to a rotary kiln door.

Background

The rotary kiln is a rotary calcining kiln (commonly called rotary kiln), belongs to building material equipment, and is widely applied to a plurality of production industries such as building materials, metallurgy, chemical industry, environmental protection and the like, in particular to the cement industry.

At present, the kiln doors of the kiln heads of rotary kilns in the cement industry of China generally adopt a traditional external guide rail type split door structure.

For example, chinese utility model "a rotary cement kiln door device" that publication number is CN203629314U discloses a rotary cement kiln door device, include two kiln doors that can open relatively that set up on the track through the gyro wheel, be equipped with inspection hole, coal powder injection tube hole and high temperature camera hole on two kiln doors respectively, the top of two kiln doors is provided with kiln door positioning mechanism, be equipped with a plurality of locking member on two kiln door lateral walls respectively. The device solves the problems that the air leakage is serious due to the serious high-temperature deformation of the rotary cement kiln door, the heat utilization rate is reduced, and the potential safety hazard is eliminated.

When the external guide rail type split door structure operates in a high-temperature and high-pressure environment, the guide rails and the kiln door are easy to deform. If the door needs to be opened during operation due to maintenance, the door is difficult to open or cannot be opened, and the door needs to be fixed again when the door needs to be closed. During production, when the kiln head is in a short-time positive pressure condition, a large amount of high-temperature dust-containing gas in the kiln is sprayed out from the kiln door air leakage position, so that the environment is polluted, and the health of workers can be harmed. And the kiln head air leakage can cause the reduction of the thermal efficiency and increase the production cost. Therefore, the kiln head kiln door needs to be improved, the sealing problem of the kiln head is solved, and air leakage and material leakage are prevented.

The utility model discloses a chinese utility model "a to open sealed kiln door" that is CN210426037U discloses a to open sealed kiln door, including left kiln door, right kiln door, buckle mechanism, the hinge mechanism, the universal wheel, the bolt pull rod, be used for the labyrinth seal in clearance between sealed kiln door and the kiln hood cover, the both ends of left kiln door and right kiln door are provided with a plurality of groups of hinge mechanism respectively, the inboard of left kiln door and right kiln door is provided with semicircular kiln door opening respectively, the universal wheel is two and fixes respectively in the bottom of left kiln door and right kiln door, left kiln door passes through buckle mechanism with right kiln door and fixes, the inside wall of left kiln door and right kiln door is the inclined plane of laminating each other, the upper end and the lower extreme of left kiln door and right kiln door all are fixed with the bolt pull rod, labyrinth seal is located the clearance department of kiln door and kiln hood cover, be equipped with observation hole and access door on the right kiln door.

The utility model discloses a hinge is to open sealed kiln door, the better sealed problem of kiln head of having solved. But the single hinge structure is not good in stability and sealing performance, and the problem of sealing the coal injection pipe hole is not considered.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model aims at providing a rotary kiln door that the leakproofness is good.

In order to realize the above object, the utility model provides a rotary kiln door, including kiln door frame, kiln door and hinge means, the kiln door is including left kiln door and the right kiln door of run-to-run, left side kiln door is through at least one hinge means connects on the kiln door frame, right side kiln door is through at least one hinge means connects on the kiln door frame, kiln door internal surface is equipped with the strengthening rib, the strengthening rib distributes for the net, the shape of net is the rhombus.

As a possible design, the kiln door is provided with a coal injection pipe hole, the coal injection pipe hole comprises a left half hole and a right half hole, the left half hole is located in the left kiln door, the right half hole is located in the right kiln door, and when the left kiln door and the right kiln door are closed, the left half hole and the right half hole form a circular coal injection pipe hole.

As a possible design, a hoop is connected to the coal injection pipe hole, the coal injection pipe hole is arranged inside the hoop, and the hoop is located on the outer surface of the kiln door. Preferably, the staple bolt includes left staple bolt and right staple bolt, left side staple bolt fixed connection in left side wicket, right side staple bolt fixed connection in right side wicket, when left side wicket and right wicket were closed, left side staple bolt with right side staple bolt formed a circular shape staple bolt.

As a possible design, the hinge device includes a first support, a second support and a connecting plate, the first support is fixedly connected to the outer surface of the kiln door frame, the second support is fixedly connected to the outer surface of the left kiln door or the outer surface of the right kiln door, one end of the connecting plate is hinged to the first support, and the other end of the connecting plate is hinged to the second support.

As a possible design, the rotary kiln door further comprises a sealing member, which is located at an edge where the left kiln door and the right kiln door are in contact, and is used for sealing the left kiln door and the right kiln door.

As a possible design, the rotary kiln door further comprises a plurality of kiln door fixing buckles, the kiln door fixing buckles are arranged at the outer edge of the kiln door, and the kiln door fixing buckles are respectively and fixedly connected to the outer surface of the kiln door and the outer surface of the kiln door frame.

As a possible design, the rotary kiln door further comprises a plurality of lifting lugs for opening and closing the kiln door, and the lifting lugs for opening and closing the kiln door are fixedly connected to the outer surface of the kiln door, so that workers can conveniently open and close the kiln door.

Compared with the prior art, the utility model discloses at least one following beneficial effect has:

the utility model discloses above-mentioned rotary kiln door adopts run from opposite directions the kiln door and is provided with the strengthening rib at the inboard side surface of kiln door, can strengthen kiln door structural strength, and wherein the strengthening rib is rhombus latticed structure, compares in the groined type latticed structure of parallel horizontal plane setting more firm, is favorable to preventing that the kiln door warp, increases sealed effect.

The utility model discloses above-mentioned rotary kiln door is provided with hinge means, and the kiln door passes through hinge means and articulates in the kiln door frame, and the mode of opening and shutting becomes to open and shut outward around the axle by the guide rail translation originally, hinge means non-deformable, and do not receive the flexibility of temperature influence switch, improved the sealed effect of kiln door, and the kiln door switch is nimble. Further, the hinge device is provided with a first support fixedly connected to the kiln door frame, a second support fixedly connected to the kiln door and a connecting plate, and the connecting plate is hinged to the first second support respectively to form a multiple hinge structure, so that the hinge device is more stable, the switch is more flexible, the stability of the kiln door is improved, and the sealing effect is improved.

The utility model discloses above-mentioned rotary kiln door is provided with the staple bolt, and the staple bolt passes through flange, soft seal structure and coal injection union coupling, ensures that the coal injection pipe can both closely laminate under the circumstances such as motion, deformation, realizes that the zero clearance is sealed, ensures that the kiln door does not leak out, does not leak the material.

The utility model discloses above-mentioned rotary kiln door still sets up the sealing member at the edge of left kiln door and right kiln door contact when closing, has further strengthened sealed effect.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic front view of an embodiment of the present invention;

fig. 2 is a schematic perspective view of an embodiment of the present invention;

fig. 3 is a second schematic perspective view of an embodiment of the present invention;

fig. 4 is a schematic rear view of an embodiment of the present invention;

fig. 5 is a schematic top view of an open state according to an embodiment of the present invention;

in the figure: 1 is the kiln door frame, 2 is the kiln door, 3 is hinge means, 301 is first support, 302 is the second support, 303 is the connecting plate, 4 is left kiln door, 5 is right kiln door, 6 is the staple bolt, 7 is the fixed buckle of kiln door, 8 is kiln door switch lug, 9 is the strengthening rib, 10 is the sealing member.

Detailed Description

The present invention will be described in detail with reference to the following embodiments. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that various changes and modifications can be made by one skilled in the art without departing from the spirit of the invention. These all belong to the protection scope of the present invention.

Fig. 1 is a front view of a rotary kiln door in an embodiment of the present invention. Referring to fig. 1, the rotary kiln door in this embodiment includes a kiln door frame 1, a kiln door 2, and a hinge device 3. The kiln door comprises a left kiln door 4 and a right kiln door 5 which are oppositely opened, the left kiln door 4 is connected to the kiln door frame 1 through at least one hinge device 3, and the right kiln door 5 is connected to the kiln door frame 1 through at least one hinge device 3. Through being provided with hinge assembly 3, kiln door 2 is opened and shut by the guide rail translation mode of opening and shutting originally become and outwards open and shut around the axle, and hinge assembly 3 non-deformable, and do not receive the flexibility of temperature influence switch, improved the sealed effect of kiln door 2, and kiln door 2 switch is nimble.

Referring to fig. 3 and 4, the inner surface of the kiln doors (the left kiln door 4 and the right kiln door 5) in the embodiment is provided with reinforcing ribs 9, so that the structural strength of the kiln doors can be enhanced. The reinforcing ribs 9 are distributed in a grid shape, the grid shape is a rhombus, and the grid structure is more stable compared with a groined grid structure arranged in a parallel horizontal plane, so that the deformation of the kiln door is prevented, and the sealing effect is improved.

In the above embodiment, the area of the kiln door 2 is slightly larger than the area of the through hole in the kiln door frame 1, and the kiln door 2 is arranged to be attached to the outer surface of the kiln door frame 1, so that the kiln door 2 is equivalent to be suspended on the kiln door frame 1. The inner surface of the kiln door 2 forms labyrinth seal with the kiln door frame 1 by casting materials, so that clinker, dust and the like can circulate with the outside. Optionally, the kiln door 2 is embedded, parallel to the end face of the kiln head.

In the embodiment described with reference to fig. 1, the left door 4 is connected to the frame 1 of the kiln door by two hinges 3 and the right door 5 is connected to the frame 1 of the kiln door by two further hinges 3. The hinge devices 3 are provided with four. Of course, in other embodiments, the number of the hinge devices 3 may be increased or decreased according to the size, weight, and the like of the kiln door, and is not limited to 4 hinge devices 3 in the present embodiment.

Referring to fig. 1, as a preferred embodiment, the hinge device 3 may include a first support 301, a second support 302 and a connecting plate 303, the first support 301 is fixedly connected to the outer surface of the door frame 1, the second support 302 is fixedly connected to the outer surface of the left door 4 or the outer surface of the right door 5, one end of the connecting plate 303 is hinged to the first support 301, and the other end of the connecting plate 303 is hinged to the second support 302, so as to form a multiple hinge structure, so that the hinge device 3 is more stable, the opening and closing are more flexible, the stability of the door 2 is improved, and the sealing effect is improved.

Referring to fig. 1, in another preferred embodiment, on the basis of the above embodiment, a sealing member 10 is further included, and the sealing member 10 is located at the edge where the left and

right doors

4 and 5 contact when they are closed, so as to seal the two. The sealing element 10 can be made of high-temperature-resistant and wear-resistant materials, so that the left kiln door 4 and the right kiln door 5 are tightly matched to reduce gaps, and unnecessary air leakage and ash leakage are reduced.

Referring to fig. 1 and 2, in another preferred embodiment, a coal injection pipe hole is formed in the middle of the kiln door 2, and comprises a left half hole and a right half hole, wherein the left half hole is positioned in the left kiln door, the right half hole is positioned in the right kiln door, and when the left kiln door and the right kiln door are closed, the left half hole and the right half hole form a circular coal injection pipe hole. In addition, 2 surfaces of kiln door are at coal injection tube fixed connection of hole department staple bolt 6, staple bolt 6 perpendicular to 2 surfaces of kiln door, the coal injection tube hole sets up inside staple bolt 6, staple bolt 6 includes left staple bolt 6 and right staple bolt 6, left staple bolt 6 fixed connection is in left kiln door 4, right staple bolt 6 fixed connection is in right kiln door 5, when left kiln door and right kiln door are closed, left staple bolt and right staple bolt form a circular shape staple bolt, thereby match each other with the coal injection tube hole. The anchor ear 6 is connected with the coal injection pipe through the flange and the soft sealing structure, so that the coal injection pipe can be tightly attached under the conditions of movement, deformation and the like, gapless sealing is realized, and the kiln door 2 is ensured not to leak air and materials.

Referring to fig. 2, in another preferred embodiment, the kiln door further comprises a plurality of kiln door fixing buckles 7, the kiln door fixing buckles 7 are arranged on the outer edge of the kiln door 2, and the kiln door fixing buckles 7 are respectively and fixedly connected to the outer surface of the kiln door 2 and the outer surface of the kiln door frame 1.

Referring to fig. 1, in another preferred embodiment, a plurality of kiln door opening and closing lifting lugs 8 can be further included, and the kiln door opening and closing lifting lugs 8 are fixedly connected to the outer surface of the kiln door 2. The kiln door switch lifting lugs 8 are four.

Of course, in other embodiments, the kiln door 2 may also be provided with conventional sight glass, access doors, etc.

Referring to fig. 5, in operation, the worker forcibly pulls the kiln door opening and closing lifting lug 8 outwards to open the left kiln door 4 and the right kiln door 5. When the kiln door is closed, the kiln door 2 is fixed by the kiln door fixing buckle 7, and the left kiln door 4 and the right kiln door 5 are matched through the sealing piece 10, the hinge device 3 and the like, so that a good sealing effect is achieved, and the situations of air leakage and material leakage are avoided. Meanwhile, the reinforcing ribs of the rhombic grids enhance the structural strength of the kiln door, prevent the kiln door from deforming and increase the sealing effect.

The foregoing description of the specific embodiments of the invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes and modifications may be made by those skilled in the art within the scope of the appended claims without departing from the spirit of the invention.

Claims

1. The utility model provides a rotary kiln door, its characterized in that, includes kiln door frame, kiln door and hinge means, the kiln door includes left kiln door and the right kiln door of run from opposite directions, left side kiln door is through at least one hinge means connects on the kiln door frame, right side kiln door is through at least one hinge means connects on the kiln door frame, kiln door internal surface is equipped with the strengthening rib, the strengthening rib is the net and distributes, the shape of net is the rhombus.

2. The rotary kiln door as claimed in claim 1, wherein the door is provided with a coal injection tube hole, the coal injection tube hole comprises a left half hole and a right half hole, the left half hole is located in the left door, the right half hole is located in the right door, and when the left door and the right door are closed, the left half hole and the right half hole form a circular coal injection tube hole.

3. The rotary kiln door as claimed in claim 2, wherein a hoop is connected to the coal injection hole, the coal injection hole is disposed inside the hoop, and the hoop is located on the outer surface of the door.

4. The rotary kiln door as claimed in claim 3, wherein the anchor ear comprises a left anchor ear and a right anchor ear, the left anchor ear is fixedly connected to the left kiln door, the right anchor ear is fixedly connected to the right kiln door, and the left anchor ear and the right anchor ear form a circular anchor ear when the left kiln door and the right kiln door are closed.

5. The rotary kiln door as claimed in claim 1, wherein the hinge means comprises a first support, a second support and a connecting plate, the first support is fixedly connected to the outer surface of the door frame, the second support is fixedly connected to the outer surface of the left door or the outer surface of the right door, one end of the connecting plate is hinged to the first support, and the other end of the connecting plate is hinged to the second support.

6. The rotary kiln door as claimed in claim 5, wherein there are four of said hinge means, said left kiln door being connected to said kiln door frame by two of said hinge means, and said right kiln door being connected to said kiln door frame by two other of said hinge means.

7. The rotary kiln door as claimed in any one of claims 1 to 6, further comprising a sealing member provided at an edge where the left and right doors contact, for sealing the left and right doors.

8. The rotary kiln door according to any one of claims 1 to 6, further comprising a plurality of door fixing buckles, wherein the door fixing buckles are arranged on the outer edge of the door, and the door fixing buckles are respectively and fixedly connected to the outer surface of the door and the outer surface of the door frame.

9. The rotary kiln door according to any one of claims 1 to 6, further comprising a plurality of lifting lugs for opening and closing the door, wherein the lifting lugs for opening and closing the door are fixedly connected to the outer surface of the door.

10. The rotary kiln door as claimed in any one of claims 1 to 6, wherein the door is provided with a sight hole and an access door.