CN212870700U

CN212870700U - Rotary kiln slag flushing pool flue gas collection device

Info

Publication number: CN212870700U
Application number: CN202021315110.4U
Authority: CN
Inventors: 李鹏; 李翔; 刘成明
Original assignee: Kunming Hengdian Environmental Protection Equipment Co Ltd
Current assignee: Kunming Hengdian Environmental Protection Equipment Co Ltd
Priority date: 2020-07-07
Filing date: 2020-07-07
Publication date: 2021-04-02
Anticipated expiration: 2030-07-07

Abstract

The utility model discloses a rotary kiln dashes sediment pond flue gas collection device, including dashing the sediment pond, the outside of dashing the sediment pond is equipped with the partition wall, be equipped with the liquid seal section in dashing the sediment pond, the gas collecting channel is installed to the upper end of partition wall, the one-level dust removal cooling atomizer is installed to the inboard of gas collecting channel, powerful exhaust column is all installed to the both sides end of partition wall, two powerful exhaust columns are linked together through three way connection and second exhaust flue pipe, the upper end of gas collecting channel is linked together through first exhaust flue pipe and three way connection, the other end of second exhaust flue pipe is linked together with the input tube of middling pressure draught fan, the casing department installation impeller dust removal spray set of middling pressure draught fan, the output tube and the third exhaust flue pipe of middling pressure draught fan are linked together, the other end and the tobacco pipe of third exhaust flue pipe are linked together, the washing pipeline is. The utility model discloses can alleviate acid rain pollution to some extent, the atmosphere pollution situation will obtain better protection.

Description

Rotary kiln slag flushing pool flue gas collection device

Technical Field

The utility model relates to a flue gas processing technology field, in particular to flue gas collection device of a slag flushing pool of a rotary kiln.

Background

The rotary kiln is a rotary calcining kiln, and belongs to building material equipment. Rotary kilns can be divided into cement kilns, metallurgical chemical kilns and lime kilns according to the different materials to be treated. The cement kiln is mainly used for calcining cement clinker and comprises a dry-process cement kiln and a wet-process cement kiln. The metallurgical chemical kiln is mainly used for magnetizing and roasting lean iron ore in steel plants in the metallurgical industry; oxidizing and roasting chromium and nickel iron ores; roasting bauxite in a refractory material plant, roasting clinker in an aluminum plant and aluminum hydroxide; roasting chromium ore sand, chromium ore powder and other minerals in a chemical plant. Lime kilns (i.e., active lime kilns) are used for roasting active lime and lightly calcined dolomite used in steel plants and iron and alloy plants.

With the development of industrialization, the environmental pollution problem seriously threatens the living environment of human beings and restricts the sustainable development of national economy, so that the national environment protection policy and the environmental protection investment are continuously strengthened in recent years, and the environmental protection consciousness of the national people is also continuously improved. The enhancement of environmental protection is a global task in the 21 st century and is the responsibility and obligation that every citizen should have to use up. In the existing rotary kiln production process, kiln slag generated at the tail of the kiln contacts vapor generated after kiln slag cooling water in the chute, and the smoke has the defects of large gas quantity, high temperature and unorganized emission, thereby causing serious influence on the peripheral production environment.

SUMMERY OF THE UTILITY MODEL

The main object of the utility model is to provide a rotary kiln slag flushing pool flue gas collection device, can effectively solve the problem in the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a rotary kiln dashes sediment pond flue gas collection device, includes dashes the sediment pond, the outside that dashes the sediment pond is equipped with the partition wall, be equipped with the liquid seal section in dashing the sediment pond, the gas collecting channel is installed to the upper end of partition wall, the one-level dust removal cooling atomizer is installed to the inboard of gas collecting channel, the one-level dust removal cooling atomizer comprises gas collecting channel shower and first shower nozzle, first shower nozzle is installed on the gas collecting channel shower, just powerful exhaust column is all installed to the both sides end of partition wall, two powerful exhaust column is linked together through three way connection and second smoke exhaust tuber pipe, just the upper end of gas collecting channel is linked together through first smoke exhaust tuber pipe and three way connection, the other end of second smoke exhaust tuber pipe is linked together with the input tube of medium pressure draught fan, install impeller dust removal spray set in casing department of medium pressure draught fan, impeller dust removal spray set, The second shower nozzle is constituteed, the second shower nozzle is installed on the fan shower, the output tube and the third of middling pressure draught fan are discharged fume the tuber pipe and are linked together, the other end and the tobacco pipe of tuber pipe are discharged fume to the third are linked together, the washing pipeline is installed in the exit of tobacco pipe, install defroster and back flush shower in the washing pipeline, install the third shower nozzle on the back flush shower.

Preferably, the angle between the bottom of the liquid seal section and the horizontal plane of the slag flushing pool is 45 degrees, and the top of the liquid seal section is level to the water level of the slag flushing pool.

Preferably, the two strong draft pipes are installed at a height of 1 m above the ground.

Preferably, the partition wall is poured by concrete, and a slag drawing opening and an access door which are convenient to clean are formed in the partition wall.

Preferably, the medium-pressure induced draft fan is a Yu fan on Suzhou top, an input pipe and a fan cover of the medium-pressure induced draft fan are made of aluminum-magnesium alloy, and pipelines from an output pipe of the medium-pressure induced draft fan to a straight exhaust port are made of PP all-plastic materials.

Preferably, the gas-collecting hood spray pipe, the fan spray pipe and the back flush spray pipe are all connected with the washing pump through connecting pipes.

Compared with the prior art, the utility model discloses following beneficial effect has: when the smoke collection device of the slag flushing pool of the rotary kiln is used, a slag discharging liquid seal section is excavated at the tail end of a slag flushing chute to ensure smooth slag discharging, the angle of the bottom of the liquid seal section to the horizontal plane of the slag flushing pool is 45 degrees, and the top of the liquid seal section is level to the water level of the slag flushing pool; concrete partition walls are poured around the slag discharging chute, a large amount of smoke and water vapor are generated by the liquid seal section and water in the slag flushing tank, the smoke contains a large amount of particles, a medium-pressure induced draft fan sucks the smoke and the water vapor, when the smoke and the water vapor pass through the gas collecting hood, the primary dedusting and cooling sprayer removes dust and cools flue gas and water vapor, when the flue gas and the water vapor pass through a medium-pressure draught fan, the impeller dedusting and spraying device in the casing of the medium-pressure draught fan removes dust and cools down smoke and steam, the smoke and the steam reach a smoke tube after passing through the medium-pressure draught fan, a washing pipeline is installed at the outlet of the smoke tube, a demister and a backwashing spray pipe are installed in the washing pipeline, dust in the smoke is removed after the smoke is washed and washed, the smoke passes through the demister, the dust reaches the standard after the water mist is removed through the demister, the smoke tube is emptied, acid rain pollution is reduced to a certain extent, and the atmosphere pollution condition is well protected.

Drawings

FIG. 1 is a schematic view of the whole structure of a flue gas collecting device of a slag flushing tank of a rotary kiln of the present invention;

FIG. 2 is a schematic structural view of a slag flushing tank of the flue gas collecting device of the slag flushing tank of the rotary kiln of the present invention;

FIG. 3 is a schematic plan view of the gas collecting hood of the flue gas collecting device of the slag washing tank of the rotary kiln of the present invention;

FIG. 4 is a schematic plan view of a fan of the flue gas collecting device of the slag washing tank of the rotary kiln of the present invention;

fig. 5 is a schematic plan view of a washing pipeline of the flue gas collecting device of the slag flushing tank of the rotary kiln of the present invention.

In the figure: 1. a slag flushing pool; 2. a partition wall; 3. liquid sealing section; 4. a gas-collecting hood; 5. a first smoke exhaust duct; 6. a strong exhaust pipe; 7. a three-way joint; 8. a second smoke exhaust duct; 9. a medium-pressure draught fan; 10. a third smoke exhaust air pipe; 11. a smoke pipe; 12. washing the pipeline; 13. a slag hole is dug; 14. a gas-collecting hood shower pipe; 15. a first nozzle; 16. a fan spray pipe; 17. a second nozzle; 18. a demister; 19. backwashing the spray pipe; 20. and a third spray head.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in figures 1-5, a rotary kiln slag flushing pool flue gas collecting device comprises a slag flushing pool 1, a partition wall 2 is arranged on the outer side of the slag flushing pool 1, a liquid seal section 3 is arranged in the slag flushing pool 1, a gas collecting hood 4 is arranged at the upper end of the partition wall 2, a primary dedusting and cooling sprayer is arranged on the inner side of the gas collecting hood 4, the primary dedusting and cooling sprayer consists of a gas collecting hood spray pipe 14 and a first spray head 15, the first spray head 15 is arranged on the gas collecting hood spray pipe 14, strong exhaust pipes 6 are arranged at two side ends of the partition wall 2, the two strong exhaust pipes 6 are communicated with a second smoke exhaust pipe 8 through a three-way joint 7, the upper end of the gas collecting hood 4 is communicated with the three-way joint 7 through a first smoke exhaust pipe 5, the other end of the second smoke exhaust pipe 8 is communicated with an input pipe of a medium-pressure draught fan 9, an impeller dedusting spray device is arranged at a shell of the, The second spray head 17 is arranged on a fan spray pipe 16, an output pipe of the medium-pressure draught fan 9 is communicated with a third smoke exhaust air pipe 10, the other end of the third smoke exhaust air pipe 10 is communicated with a smoke pipe 11, a washing pipeline 12 is arranged at the outlet of the smoke pipe 11, a demister 18 and a back washing spray pipe 19 are arranged in the washing pipeline 12, and a third spray head 20 is arranged on the back washing spray pipe 19.

In this embodiment, preferably, the angle between the bottom of the liquid seal section 3 and the horizontal plane of the slag flushing pool 1 is 45 degrees, and the top of the liquid seal section 3 is level with the water level of the slag flushing pool 1, so that the liquid seal section 3 can be in full contact with the water in the slag flushing pool 1.

In this embodiment, preferably, the two strong draft pipes 6 are installed at a position 1 m above the ground, and the two strong draft pipes 6 function to collect water mist on the water surface of the slag flushing pool 1.

In this embodiment, preferably, partition wall 2 is by concrete placement, and sets up the sediment mouth 13 and the access door of drawing of being convenient for the clearance on partition wall 2, and concrete placement's partition wall 2 keeps apart protective effect good, prevents water smoke evaporation, draws the sediment mouth and is convenient for clear up the dust in the flushing sediment pond 1, and the access door is convenient for get into and overhauls inside device part.

In this embodiment, preferably, the medium-pressure induced draft fan 9 is a yu fan in suzhou top, the input pipe and the fan housing of the medium-pressure induced draft fan 9 are made of aluminum-magnesium alloy, the pipeline from the output pipe of the medium-pressure induced draft fan 9 to the straight exhaust port is made of PP all-plastic material, the welding line is welded by groove welding, and the interface is flat and high-temperature resistant.

In this embodiment, preferably, the gas collecting hood shower 14, the fan shower 16, and the back flush shower 19 are all connected to a washing pump through connecting pipes, and the washing pump is convenient to supply water to the gas collecting hood shower 14, the fan shower 16, and the back flush shower 19.

It should be noted that the utility model relates to a rotary kiln slag flushing pool flue gas collection device, when in use, a slag discharging liquid seal section 3 is excavated at the end of a slag flushing chute to ensure smooth slag discharging, the angle of the bottom of the liquid seal section 3 on the horizontal plane of the slag flushing pool 1 is 45 degrees, and the top is level with the water level of the slag flushing pool 1; pouring a concrete partition wall 2 around the slag discharging chute, generating a large amount of smoke and vapor by a liquid seal section 3 and water in a slag flushing pool 1, wherein the smoke contains a large amount of particles, a medium-pressure draught fan 9 sucks the smoke and the vapor, a primary dedusting and cooling sprayer removes dust and cools the smoke and the vapor when the smoke and the vapor pass through a gas collecting hood 4, an impeller dedusting and spraying device in a casing of the medium-pressure draught fan 9 removes dust and cools the smoke and the vapor when the smoke and the vapor pass through the medium-pressure draught fan 9, the smoke and the vapor pass through the medium-pressure draught fan 9 and reach a smoke tube 11, a washing pipeline 12 is installed at an outlet of the smoke tube 11, a demister 18 and a back flushing and spraying pipe 19 are installed in the washing pipeline 12, the smoke is washed to remove dust in the smoke, the smoke passes through the demister 18, the water mist is removed by the demister 18, the dust reaching the standard is emptied through the smoke tube 11, and, the atmospheric pollution condition can be well protected.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The flue gas collecting device of the slag flushing tank of the rotary kiln comprises a slag flushing tank (1) and is characterized in that a partition wall (2) is arranged on the outer side of the slag flushing tank (1), a liquid seal section (3) is arranged in the slag flushing tank (1), a gas collecting hood (4) is installed at the upper end of the partition wall (2), a primary dedusting and cooling sprayer is installed on the inner side of the gas collecting hood (4), the primary dedusting and cooling sprayer consists of a gas collecting hood spray pipe (14) and a first spray head (15), the first spray head (15) is installed on the gas collecting hood spray pipe (14), strong exhaust pipes (6) are installed at two side ends of the partition wall (2), the two strong exhaust pipes (6) are communicated with a second exhaust pipe (8) through a three-way joint (7), and the upper end of the gas collecting hood (4) is communicated with the three-way joint (7) through a first exhaust pipe (5), the other end of second smoke exhaust pipe (8) is linked together with the input tube of middling pressure draught fan (9), the casing department installation impeller dust removal spray set of middling pressure draught fan (9), impeller dust removal spray set comprises fan shower (16), second shower nozzle (17) are installed on fan shower (16), the output tube and the third of middling pressure draught fan (9) are discharged fume tuber pipe (10) and are linked together, the other end and tobacco pipe (11) of third smoke exhaust tuber pipe (10) are linked together, washing pipeline (12) are installed in the exit of tobacco pipe (11), install defroster (18) and back flush shower (19) in washing pipeline (12), install third shower nozzle (20) on back flush shower (19).

2. The rotary kiln slag washing pool flue gas collection device as claimed in claim 1, wherein: the angle between the bottom of the liquid seal section (3) and the horizontal plane of the slag flushing pool (1) is 45 degrees, and the top of the liquid seal section (3) is level to the water level of the slag flushing pool (1).

3. The rotary kiln slag washing pool flue gas collection device as claimed in claim 1, wherein: the two strong exhaust pipes (6) are arranged at the position 1 m above the ground.

4. The rotary kiln slag washing pool flue gas collection device as claimed in claim 1, wherein: the partition wall (2) is poured by concrete, and a slag drawing opening (13) and an access door which are convenient to clean are formed in the partition wall (2).

5. The rotary kiln slag washing pool flue gas collection device as claimed in claim 1, wherein: the medium-pressure draught fan (9) is a Suzhou top surplus fan, an input pipe and a fan cover of the medium-pressure draught fan (9) are made of aluminum-magnesium alloy, and a pipeline from an output pipe of the medium-pressure draught fan (9) to a straight exhaust port is made of PP all-plastic materials.

6. The rotary kiln slag washing pool flue gas collection device as claimed in claim 1, wherein: the gas collecting hood spray pipe (14), the fan spray pipe (16) and the back flush spray pipe (19) are all connected with the washing pump through connecting pipes.