CN218065872U

CN218065872U - Clean cement rotary kiln

Info

Publication number: CN218065872U
Application number: CN202220786291.1U
Authority: CN
Inventors: 杨印龙; 咸士刚; 李健; 王建; 吕长青
Original assignee: Jining Zhonglian Cement Co ltd
Current assignee: Jining Zhonglian Cement Co ltd
Priority date: 2022-04-06
Filing date: 2022-04-06
Publication date: 2022-12-16
Anticipated expiration: 2032-04-06

Abstract

The utility model discloses a clean cement rotary kiln, including the rotary kiln, the rotary kiln includes the kiln tail, the kiln tail outside is provided with the smoke chamber, be provided with sealing device between kiln tail and the smoke chamber, sealing device includes solid fixed ring and fixed storehouse, gu fixed ring is fixed in the kiln tail outside, gu the fixed ring outside has seted up the track groove, fixed storehouse is fixed in inside the smoke chamber, fixed storehouse one end is provided with linking portion, linking portion and track groove looks adaptation, the smoke chamber top is provided with the storage silo, the storage silo bottom is connected with the connecting pipe, the connecting pipe bottom runs through fixed storehouse top terminal surface, directly gets into in the smoke chamber from the exhaust port of fixed storehouse, and the inside raw material of storage silo passes through the connecting pipe and directly leads to in the fixed storehouse, falls to the guide plate on, gets into the body through the kiln tail along the guide plate, the utility model discloses realize the top feeding of discharging fume in fixed storehouse is inside, prevent that smoke and dust and raw material from mixing, improve the raw material of.

Description

Clean cement rotary kiln

Technical Field

The utility model belongs to the technical field of the rotary kiln, concretely relates to clean type cement rotary kiln.

Background

The cement rotary kiln belongs to the field of building material equipment, and is one kind of lime kiln. Rotary kilns can be classified into cement rotary kilns, metallurgical chemical rotary kilns and lime rotary kilns according to the difference of raw materials to be treated. The rotary cement kiln is the main equipment of the cement clinker dry and wet production line.

The clinker comes from the kiln head, the kiln tail is fed, the raw material preheated by the preheater enters the rotary kiln from the high-end kiln tail, the raw material generates a compound motion of rolling along the circumference and moving from high temperature to low temperature along the axial direction due to the inclined slow rotation of the kiln cylinder, and the raw material is discharged from the low-end kiln head after being sintered and enters the grate cooler for cooling. The hot air after the clinker is cooled enters the firing system through the tertiary air duct and the kiln body, and the heat required by the kiln body for firing is sprayed into the rotary kiln from the kiln head through the firing coal spray pipe. When the existing rotary kiln is used for feeding, the smoke dust in the smoke gas is easy to mix, so that impurities are mixed in the raw material after the raw material is fired, and the cleanliness is not high.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

To prior art not enough, the utility model provides a clean cement rotary kiln possesses the bottom feeding of discharging fume at the inside top that realizes of fixed storehouse, prevents that smoke and dust and raw material from mixing, improves the advantage of the cleanliness of raw material, has solved current raw material when the feeding, mixes with the smoke and dust, and the grog after the burning mixes the condition of impurity.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a clean type cement rotary kiln, includes the rotary kiln, the rotary kiln includes the kiln tail, the kiln tail outside is provided with the smoke chamber, be provided with sealing device between kiln tail and the smoke chamber, sealing device is including solid fixed ring and fixed storehouse, gu fixed ring is fixed in the kiln tail outside, gu the fixed ring outside has seted up the track groove, fixed storehouse is fixed in inside the smoke chamber, fixed storehouse one end is provided with linking portion, linking portion and track groove looks adaptation, the smoke chamber top is provided with the storage silo, the storage silo bottom is connected with the connecting pipe, fixed storehouse top terminal surface is run through to the connecting pipe bottom, and inside the fixed storehouse is arranged in to the bottom mouth of pipe, connecting pipe one side is provided with the exhaust port, the exhaust port is seted up in fixed storehouse top terminal surface.

As a preferred technical scheme of the utility model, the installation cavity has evenly been seted up to the linking portion inboard, the installation cavity is inside to set up the ball, ball contact track groove.

As an optimized technical scheme of the utility model, the connecting pipe top is provided with the valve.

As an optimized technical scheme of the utility model, the one end in fixed storehouse is fixed in the smoke chamber inner wall, fixed storehouse bottom is provided with the support frame.

As a preferred technical scheme of the utility model, the inside guide plate that is provided with of fixed storehouse, inside guide plate one end is fixed in fixed storehouse, the guide plate other end extends to kiln tail inside.

As an optimized technical scheme of the utility model, the guide plate does not contact the kiln tail inner wall.

As a preferred technical scheme of the utility model, the smoke chamber top is provided with the pipe of discharging fume, the intraductal portion of discharging fume is provided with the draught fan.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) The inside flue gas of kiln gets into fixed storehouse through the kiln tail in, directly gets into in the smoke chamber from the exhaust port of fixed storehouse, and the inside raw material of storage silo falls to the guide plate in passing through the direct leading-in fixed storehouse of connecting pipe, passes through the kiln tail along the guide plate and gets into the kiln body, the utility model discloses realize the top and discharge fume the bottom feeding inside fixed storehouse, prevent that smoke and dust and raw material from mixing, improve the cleanliness of raw material.

(2) The kiln body drives the kiln tail to rotate when rotating, and the ball inside the mounting cavity inside the linking part rolls in the track groove outside the fixing ring, so that the friction force between the linking part and the fixing ring is reduced in the rotating process of the linking part and the fixing ring, and the kiln body is convenient to rotate.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the overall cross-sectional structure of the present invention;

FIG. 3 is an enlarged schematic view of the structure at A of the present invention;

in the figure: 1. a kiln tail; 2. a smoking room; 3. a fixing ring; 4. a track groove; 5. a joining section; 6. a storage bin; 7. a connecting pipe; 8. a smoke exhaust port; 9. a mounting cavity; 10. a ball bearing; 11. a valve; 12. a support frame; 13. a baffle; 14. a smoke exhaust pipe; 15. an induced draft fan; 16. and (7) fixing the bin.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-3, the present invention provides the following technical solutions: the utility model provides a clean type cement rotary kiln, includes the rotary kiln, the rotary kiln includes kiln tail 1, the 1 outside of kiln tail is provided with smoke-box 2, be provided with sealing device between kiln tail 1 and the smoke-box 2, sealing device includes solid fixed ring 3 and fixed storehouse 16, gu fixed ring 3 is fixed in the 1 outside of kiln tail, gu fixed ring 3 has seted up the track groove 4 in the outside, fixed storehouse 16 is fixed in inside 2 of smoke-box, fixed storehouse 16 one end is provided with linking portion 5, linking portion 5 and track groove 4 looks adaptation, 2 tops of smoke-box are provided with

storage silo

6, 6 bottoms of storage silo are connected with connecting pipe 7, connecting pipe 7 bottom runs through fixed storehouse 16 top end face, and inside the fixed storehouse 16 is arranged in to the mouth of pipe bottom, connecting pipe 7 one side is provided with exhaust port 8, exhaust port 8 sets up in fixed storehouse 16 top end face, in this embodiment, the inside flue gas of the kiln body passes through kiln tail 1 and gets into fixed storehouse 16, in the smoke exhaust port 8 of fixed storehouse 2 directly gets into the smoke-box from fixed storehouse 6 inside raw material passes through the connecting pipe 7 directly leading-in fixed storehouse 16, on the fixed storehouse 16, the guide plate of raw material is passed through the guide plate 13, and the cleanness is along the fixed storehouse 1, and the inside raw material of kiln tail is realized the mixed guide plate, and the top of mixed raw material is in the mixed raw material 16, the top of the raw material, and the mixed raw material is improved.

In order to link up portion 5 and solid fixed ring 3 and rotate the in-process and reduce the frictional force when both contact, in this embodiment, as the utility model discloses a preferred technical scheme, link up portion 5 inboard has evenly seted up installation cavity 9, installation cavity 9 is inside to set up ball 10, ball 10 contact track groove 4.

In order to conveniently control the feeding amount, in this embodiment, as the utility model discloses a preferred technical scheme, connecting pipe 7 top is provided with valve 11.

In order to fix the fixed bin 16 in the smoking room 2 conveniently, in this embodiment, as a preferred technical solution of the present invention, one end of the fixed bin 16 is fixed on the inner wall of the smoking room 2, and the bottom of the fixed bin 16 is provided with the supporting frame 12.

In order to facilitate feeding, in this embodiment, as the utility model discloses a preferred technical scheme, fixed 16 inside guide plates 13 that are provided with of storehouse, inside guide plates 13 one end was fixed in fixed 16 storehouses, the guide plates 13 other end extended to kiln tail 1 inside, guide plates 13 contactless kiln tail 1 inner wall.

In order to discharge fume with higher speed, in this embodiment, as the utility model discloses a preferred technical scheme, 2 tops in smoke chamber are provided with the pipe 14 of discharging fume, the pipe 14 bottom of discharging fume is provided with draught fan 15.

To sum up, with the aid of the above technical scheme of the utility model, the internal portion of kiln flue gas passes through in kiln tail 1 gets into fixed bin 16, directly get into smoke chamber 2 from smoke vent 8 of fixed bin 16, send into denitration desulfurization dust removal process through draught fan 15 and the pipe 14 of discharging fume at 2 tops of smoke chamber, the inside raw material of storage silo 6 passes through connecting pipe 7 and directly channels into in fixed bin 16, fall to on guide plate 13, get into the kiln body through kiln tail 1 along guide plate 13, the kiln body is when rotatory, drive kiln tail 1 and rotate, the solid fixed ring 3 that drives the outside in the kiln tail 1 rotates at the inside rotation of linking portion 5, utilize the inside ball 10 of installation cavity 9 to roll in track groove 4, realize linking portion 5 and solid fixed ring 3 and rotate the frictional force when in-process and reduce both contacts, make things convenient for the kiln body to rotate, fixed bin 16 keeps motionless simultaneously.

Finally, it should be noted that: in the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a clean type cement rotary kiln, includes the rotary kiln, the rotary kiln includes kiln tail (1), kiln tail (1) outside is provided with smoke chamber (2), its characterized in that: be provided with sealing device between kiln tail (1) and smoke-box (2), sealing device is including solid fixed ring (3) and fixed storehouse (16), gu fixed ring (3) are fixed in kiln tail (1) outside, track groove (4) have been seted up in solid fixed ring (3) outside, fixed storehouse (16) are fixed in inside smoke-box (2), fixed storehouse (16) one end is provided with linking portion (5), linking portion (5) and track groove (4) looks adaptation, smoke-box (2) top is provided with storage silo (6), storage silo (6) bottom is connected with connecting pipe (7), fixed storehouse (16) top end face is run through to connecting pipe (7) bottom, and the bottom mouth of pipe is arranged in inside fixed storehouse (16), connecting pipe (7) one side is provided with exhaust port (8), exhaust port (8) are seted up in fixed storehouse (16) top end face.

2. The clean type cement rotary kiln according to claim 1, characterized in that: the mounting cavity (9) has evenly been seted up to link up portion (5) inboard, mounting cavity (9) inside sets up ball (10), ball (10) contact track groove (4).

3. A clean-type cement rotary kiln as set forth in claim 1, wherein: and a valve (11) is arranged at the top of the connecting pipe (7).

4. A clean-type cement rotary kiln as set forth in claim 1, wherein: one end of the fixed bin (16) is fixed on the inner wall of the smoke chamber (2), and a support frame (12) is arranged at the bottom of the fixed bin (16).

5. A clean type cement rotary kiln according to claim 4, characterized in that: fixed storehouse (16) inside is provided with guide plate (13), guide plate (13) one end is fixed in inside fixed storehouse (16), guide plate (13) other end extends to kiln tail (1) inside.

6. A clean type cement rotary kiln according to claim 5, characterized in that: the guide plate (13) is not in contact with the inner wall of the kiln tail (1).

7. A clean-type cement rotary kiln as set forth in claim 1, wherein: smoke exhaust pipe (14) are arranged at the top of smoke chamber (2), and draught fan (15) are arranged at the bottom of smoke exhaust pipe (14).