CN211425092U

CN211425092U - Calcination rotary kiln tip cooling dust collector

Info

Publication number: CN211425092U
Application number: CN201922272402.8U
Authority: CN
Inventors: 朱长君; 翟世君; 史立方; 甄海停; 任壮志; 高金旺
Original assignee: Zhuolu Jinyu Cement Co ltd
Current assignee: Zhuolu Jinyu Cement Co ltd
Priority date: 2019-12-17
Filing date: 2019-12-17
Publication date: 2020-09-04
Anticipated expiration: 2029-12-17

Abstract

The utility model relates to a calcining rotary kiln end part cooling and dust removing device, which comprises an exhaust pipe, a cooling device, an exhaust fan and a cyclone dust collector, wherein the exhaust pipe is connected to an air outlet on a kiln hood cover; the cooling device comprises a water storage tank, the exhaust pipe comprises a main pipeline and a plurality of branch pipelines, and the branch pipelines are immersed in cold water in the water storage tank. The utility model discloses have the temperature that reduces the rotary kiln tip dust and clear away the effect of dust.

Description

Calcination rotary kiln tip cooling dust collector

Technical Field

The utility model belongs to the technical field of cement trade dust collecting equipment's technique and specifically relates to a calcine rotary kiln tip dust collector that cools down.

Background

The cement calcining rotary kiln is one kind of rotary kiln and has the main function of processing cement and lime. The rotary cement kiln is a special equipment for high-temperature calcination of cement raw materials in cement production. However, in the process of cement calcination, a large amount of solid particles such as dust are carried in the discharged high-temperature gas, and the discharged high-temperature gas drives the smoke dust to rise upwards, so that the difficulty degree of smoke dust treatment is increased, the high-temperature smoke dust often causes accidental injury to nearby workers, the smoke dust is directly discharged into the air, the air quality is affected, and the requirements and safety standards for environmental protection are not met.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a calcine rotary kiln tip cooling dust collector, it has the temperature that reduces rotary kiln tip dust and clears away the advantage of dust to exist not enough to prior art.

The above object of the present invention can be achieved by the following technical solutions:

the utility model provides a calcination rotary kiln tip dust collector that cools down, includes exhaust column, cooling device, air exhauster and cyclone, the exhaust column is connected to the air outlet on the kiln hood cover, cooling device is connected to the exhaust column, the air exhauster communicates to the one end that the exhaust column deviates from the kiln hood cover, cyclone is connected to the air outlet of air exhauster.

By adopting the technical scheme, the exhaust pipe is connected with the air outlet of the kiln head cover, smoke and dust in the rotary kiln can be extracted into the exhaust pipe under the action of the exhaust fan, and the cooling device is connected with the exhaust pipe, so that the temperature of the smoke and dust in the exhaust pipe can be reduced, the service life of the exhaust pipe is prolonged, and the personal safety of workers is protected; and the cyclone dust collector can separate dust from air in the cyclone dust collector at the other end of the exhaust pipe, so that the dust removal effect is achieved.

The present invention may be further configured in a preferred embodiment as: the cooling device comprises a water storage tank, and part of the exhaust pipes are arranged in the water storage tank.

Through adopting above-mentioned technical scheme, the exhaust column is wrapped up by the cold water in the water storage box, can make the outer wall temperature reduction of exhaust column to the smoke and dust temperature that makes in the exhaust column reduces, reaches the purpose of cooling.

The present invention may be further configured in a preferred embodiment as: the water storage tank is provided with a water inlet and a water outlet.

By adopting the technical scheme, the arrangement of the water inlet and the water outlet on the water storage tank can enable water in the water storage tank to flow, so that the variation range of the water temperature in the water storage tank can be reduced, and the cooling efficiency of high temperature on the exhaust pipe can be improved.

The present invention may be further configured in a preferred embodiment as: the exhaust pipe comprises a main pipeline and a plurality of branch pipelines, and the branch pipelines are immersed in the water storage tank.

By adopting the technical scheme, the plurality of branch pipes can divide the smoke dust in the main pipe, the concentration ratio of the smoke dust is reduced, and the contact area and the heat dissipation area of the smoke dust and the air suction pipeline are increased; the branch pipe is arranged in the water storage tank, so that cold water in the water storage tank surrounds the branch pipe, and a better cooling effect on smoke dust in the exhaust pipe can be achieved.

The present invention may be further configured in a preferred embodiment as: the branch pipelines are positioned on the same horizontal plane, and the part of the main pipeline connected with the branch pipelines is of a vertical structure.

Through adopting above-mentioned technical scheme, the bleeder is located same horizontal plane, can make the even reposition of redundant personnel of the high temperature smoke and dust in the convulsions pipe, prevents that the high temperature smoke and dust from concentrating on the top, and leads to its radiating efficiency to reduce.

The present invention may be further configured in a preferred embodiment as: and a ventilation hole is formed in the side wall of the exhaust pipe close to one end of the transition pipe.

Through adopting above-mentioned technical scheme, the setting in ventilation hole on the exhaust column can be with the outside partial cold air suction of rotary kiln in the exhaust column, and the cold air can play certain cooling effect and dilute smoke and dust concentration to the inside flue gas of exhaust column and dust, prevents that the high temperature in the exhaust column from influencing the life of exhaust column.

The present invention may be further configured in a preferred embodiment as: the ventilation hole is provided with a plurality of, and is the array along the circumference of exhaust column and arranges.

Through adopting above-mentioned technical scheme, the setting in a plurality of ventilation holes can improve the cooling effect to the flue gas dust, because the effect of air exhauster, can prevent that the smoke and dust in the rotary kiln from running out in the ventilation hole, improves the cooling effect to high temperature smoke and dust.

The present invention may be further configured in a preferred embodiment as: and a material receiving device is arranged at the lower port of the cyclone dust collector.

By adopting the technical scheme, the material receiving device is arranged at the lower port of the cyclone dust collector, so that dust can be discharged from the lower port of the cyclone dust collector by the cyclone dust collector, and the rest gas can be discharged from the upper port of the cyclone dust collector, thereby achieving the dust removal effect.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the ventilation holes formed in the side edges of the exhaust pipe and the arrangement of the water storage tank can enable external air to enter the exhaust pipe from the ventilation holes and be mixed with high-temperature smoke dust in the exhaust pipe, the temperature of the smoke dust in the exhaust pipe can be reduced, the exhaust pipe is immersed in cold water in the water storage tank, the smoke dust can be further cooled, personal injury of high-temperature smoke dust to an exhaust fan and surrounding operators is reduced, and the exhaust fan blows the cooled smoke dust into the cyclone dust collector, so that the dust removal effect can be achieved;

2. the part of the exhaust pipe, which is immersed into the water storage tank, is of a U-shaped structure, so that one part of the exhaust pipe enters cold water, the problems of hole opening on the water storage tank and sealing of the contact position of the exhaust pipe can be avoided, and the failure rate in operation is reduced;

3. set up the design of lateral conduit on the exhaust column, can make the smoke and dust concentration degree in the lateral conduit dispersion trunk line, increase the area of contact of high temperature smoke and dust and exhaust duct lateral wall, improve the radiating efficiency, simultaneously, the lateral conduit immerses in the cold water of water storage box, can further accelerate the radiating efficiency of high temperature smoke and dust to improve the efficiency of cleaing away of smoke and dust.

Drawings

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

Fig. 2 is a schematic structural view of the utility model with the central exhaust pipe inside the water storage tank.

Reference numerals: 1. an exhaust pipe; 11. a main pipeline; 111. a vent hole; 12. a branch pipe; 21. a water storage tank; 211. a water inlet; 212. a water outlet; 3. an exhaust fan; 4. a cyclone dust collector; 41. a material receiving device; 5. a kiln head cover.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a calcine rotary kiln tip cooling dust collector, including exhaust column 1, cooling device, air exhauster 3 and cyclone 4, 1 flange joint of exhaust column is to the air outlet on the kiln hood cover 5, and cooling device is connected to exhaust column 1, and air exhauster 3 communicates to the one end that exhaust column 1 deviates from kiln hood cover 5, and cyclone 4 is connected to the air outlet of air exhauster 3.

The cement raw material enters from the kiln head of the rotary kiln, and forms clinker through the high temperature of the rotary kiln, and because the horizontal position of one end of the kiln head is higher, the coal sprayer sprays coal powder from the other end of the rotary kiln and burns the coal powder, so that the high-temperature gas in the rotary kiln carries dust and other particulate matters to spray from the kiln head with higher position. The exhaust pipe 1 is connected with an air outlet of the kiln head cover 5, smoke and dust in the rotary kiln can be extracted into the exhaust pipe 1 under the action of the exhaust fan 3, and the cooling device is connected with the exhaust pipe 1 and used for reducing the temperature of the smoke in the exhaust pipe 1, prolonging the service life of the exhaust pipe 1 and protecting the personal safety of related workers; the cooled dust is pumped into the cyclone dust collector 4 by the exhaust fan 3, and the cyclone dust collector 4 can separate the dust from the air, thereby achieving the effect of dust removal.

The side wall of the exhaust pipe 1, which is close to one end of the kiln head cover 5, is provided with a vent hole 111, so that part of cold air outside the kiln head cover 5 can enter the exhaust pipe 1 from the vent hole 111 under the action of the exhaust fan 3, and the cold air is fused with flue gas and dust inside the exhaust pipe 1, so that a certain cooling effect on high-temperature smoke can be achieved, and the service life of the exhaust pipe 1 is prevented from being influenced by overhigh temperature in the exhaust pipe 1; the ventilation hole 111 is provided with a plurality of, and arranges along exhaust column 1's circumference, can make the entering volume of cold air increase, improves the cooling effect to the flue gas dust, because the effect of air exhauster 3, can prevent that the smoke and dust in the rotary kiln from running out in ventilation hole 111, improves the cold air suction effect.

The cooling device comprises a water storage tank 21, cold water is filled in the water storage tank 21, and part of the exhaust pipe 1 is arranged in the water storage tank 21, so that the cold water in the water storage tank 21 wraps the exhaust pipe 1, and high temperature in the exhaust pipe 1 can be diffused into the cold water in the water storage tank 21; the water storage tank 21 is provided with a water inlet 211 and a water outlet 212, the water inlet 211 and the water outlet 212 can be connected with a water pipeline, the water pipeline is connected with a water suction pump, cold water in the water storage tank 21 flows and circulates, the temperature of the cold water in the water storage tank 21 is kept, and the cooling efficiency of high-temperature smoke dust in the exhaust pipe 1 is improved.

Referring to fig. 2, the exhaust pipe 1 includes a main pipe 11 and a plurality of branch pipes 12, the branch pipes 12 are located on the same horizontal plane, a portion of the main pipe 11 connected to the branch pipes 12 is a vertical structure, and the branch pipes 12 are immersed in the water storage tank 21. The branch pipes can divide smoke dust in the main pipe, the concentration ratio of the smoke dust is reduced, and the contact area and the heat dissipation area of the smoke dust and the exhaust pipe 1 are increased; the branch pipe is arranged in the water storage tank 21, so that cold water in the water storage tank 21 surrounds the branch pipe, and a better cooling effect on smoke dust in the exhaust pipe 1 can be achieved. The branch pipes are positioned on the same horizontal plane, so that high-temperature smoke dust in the exhaust pipe 1 can be uniformly distributed, and the heat dissipation efficiency of the exhaust pipe is prevented from being reduced due to the fact that the high-temperature smoke dust is concentrated on the top; the main pipe 11 and the branch pipe 12 are connected to form a U-shaped structure, so that the main pipe 11 is positioned above the water storage tank 21, the branch pipe 12 is immersed in cold water in the water storage tank 21, the sealing structure between the water storage tank 21 and the exhaust pipe 1 is reduced, and the water cooling mode is simple to use.

The lower port of the cyclone dust collector 4 is provided with a material receiving device 41 which comprises a dust collecting bag, the material receiving bag is arranged at the lower port of the cyclone dust collector 4, and can collect falling dust, so that the dust is prevented from polluting the external environment, and the device is more environment-friendly.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a calcination rotary kiln tip cooling dust collector which characterized in that: including exhaust column (1), cooling device (2), air exhauster (3) and cyclone (4), exhaust column (1) is connected to the air outlet on kiln hood cover (5), cooling device (2) are connected to exhaust column (1), air exhauster (3) communicate to the one end that deviates from kiln hood cover (5) in exhaust column (1), cyclone (4) are connected to the air outlet of air exhauster (3).

2. The device for cooling and dedusting the end part of the calcining rotary kiln as recited in claim 1, characterized in that: the cooling device (2) comprises a water storage tank (21) and cold water in the water storage tank (21), and part of the exhaust pipe (1) is immersed in the cold water in the water storage tank (21).

3. The device for cooling and dedusting the end part of the calcining rotary kiln as recited in claim 2, characterized in that: the water storage tank (21) is provided with a water inlet (211) and a water outlet (212).

4. The device for cooling and dedusting the end part of the calcining rotary kiln as recited in claim 1, characterized in that: the exhaust pipe (1) comprises a main pipe (11) and a plurality of branch pipes (12), and the branch pipes (12) are immersed in the water storage tank (21).

5. The device for cooling and dedusting the end part of the calcining rotary kiln as recited in claim 4, characterized in that: the branch pipelines (12) are positioned on the same horizontal plane, and the part of the main pipeline (11) connected with the branch pipelines (12) is of a vertical structure.

6. The device for cooling and dedusting the end part of the calcining rotary kiln as recited in claim 1, characterized in that: and a ventilation hole (111) is formed in the side wall of one end, close to the kiln head cover (5), of the exhaust pipe (1).

7. The device for cooling and dedusting the end part of the calcining rotary kiln as recited in claim 6, characterized in that: the ventilation holes (111) are provided with a plurality of ventilation holes and are arranged in an array mode along the circumferential direction of the exhaust pipe (1).

8. The device for cooling and dedusting the end part of the calcining rotary kiln as recited in claim 1, characterized in that: and a material receiving device (41) is arranged at the lower port of the cyclone dust collector (4).