CN213067139U

CN213067139U - Clean rotary kiln

Info

Publication number: CN213067139U
Application number: CN202021640891.4U
Authority: CN
Inventors: 吴立铭; 吴建国
Original assignee: Ningxia Aosi Chemical Co ltd
Current assignee: Ningxia Aosi Chemical Co ltd
Priority date: 2020-08-10
Filing date: 2020-08-10
Publication date: 2021-04-27
Anticipated expiration: 2030-08-10

Abstract

The utility model provides a clean rotary kiln, which comprises a rotary kiln, wherein one end of the rotary kiln is provided with a combustion chamber, the other end of the rotary kiln is provided with a waste heat boiler, the waste heat boiler is communicated with a dust remover, the dust remover is communicated with a spray absorption tower, an air inlet of the rotary kiln is provided with a first gas collecting hood, and an air outlet of the combustion chamber extends into the first gas collecting hood; and a second gas collecting hood is arranged at the gas inlet of the waste heat boiler, a gas outlet of the rotary kiln extends into the second gas collecting hood, and an exhaust mechanism is arranged above the rotary kiln. The utility model discloses a clean type rotary kiln utilizes exhaust-heat boiler to carry out effective utilization to the waste heat in the waste gas, utilizes the dust remover and sprays the absorption tower and carry out purification treatment to waste gas, utilizes first gas collecting channel and second gas collecting channel to reduce the rotary kiln and imports and exports gaseous the giving off, utilizes exhaust mechanism to collect the gas that gives off and loopback to the dust remover and spray the absorption tower and carry out purification treatment. Utilize the utility model discloses a clean type rotary kiln has solved the waste gas pollution that the rotary kiln exists among the prior art and the extravagant problem of waste heat.

Description

Clean rotary kiln

Technical Field

The utility model relates to a rotary kiln technical field specifically, relates to a clean type rotary kiln.

Background

The rotary kiln, i.e. the rotary calcining kiln, is the most common equipment for the high-temperature calcining process and is also one of the most important equipment for producing sodium sulfide.

In the prior art, because the rotary kiln is in a rotating state when in work and the matched equipment is fixedly installed, a gap exists between the rotary kiln and the matched equipment and the rotary kiln and the matched equipment cannot be in sealing connection, gas in the rotary kiln is easy to diffuse to a production workshop and is finally discharged in the air, so that the adverse effect on the health of workers is caused, and the environment is polluted. In addition, high-temperature gas in the rotary kiln is discharged, and waste heat is not effectively utilized, so that energy waste is caused.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to provide a clean rotary kiln to solve the waste gas pollution and the extravagant problem of waste heat that the rotary kiln exists among the prior art.

The utility model provides a clean rotary kiln, which comprises a rotary kiln, wherein one end of the rotary kiln is provided with a combustion chamber, the other end of the rotary kiln is provided with a waste heat boiler, the gas outlet of the waste heat boiler is communicated with a dust remover, the gas outlet of the dust remover is communicated with a spray absorption tower, the gas inlet of the rotary kiln is provided with a first gas collecting hood, and the gas outlet of the combustion chamber extends into the first gas collecting hood; and a second gas collecting hood is arranged at the gas inlet of the waste heat boiler, a gas outlet of the rotary kiln extends into the second gas collecting hood, and an exhaust mechanism is arranged above the rotary kiln.

Preferably, the rotary kiln comprises a kiln body, a towing ring and a gear ring are arranged on the kiln body, a towing wheel is arranged on the lower side of the towing ring, the towing wheel is assembled on a towing wheel seat, a gear is arranged on the lower side of the gear ring, the gear is assembled on a gear seat, the gear is connected with a power output end of a gear box, and the gear box is connected with a power output end of a motor.

Preferably, the spraying absorption tower comprises a tower body, a spraying pipe is arranged at the top in the tower body, a spray head is arranged on the spraying pipe, a liquid collecting tank is arranged at the bottom in the tower body and communicated with the liquid storage tank, the liquid storage tank is communicated with the spraying pipe through a return pipe, a return pump is arranged on the return pipe, and a chimney is arranged at the top of the tower body.

Preferably, the sump is of inverted cone shape.

Preferably, the spray pipe is an annular pipe.

Preferably, the exhaust mechanism comprises an exhaust hood arranged above the rotary kiln, the exhaust hood is connected with an exhaust pipeline, an exhaust fan is arranged on the exhaust pipeline, and an air outlet end of the exhaust pipeline is communicated with the dust remover.

Preferably, the exhaust hood is a semi-cylindrical shell arranged horizontally, and the opening of the exhaust hood is downward.

The utility model has the advantages that: the utility model discloses a clean type rotary kiln utilizes exhaust-heat boiler to carry out effective utilization to the waste heat in the waste gas, utilizes the dust remover and sprays the absorption tower and carry out purification treatment to waste gas, utilizes first gas collecting channel and second gas collecting channel, reduces the rotary kiln and imports and exports gaseous the giving off, utilizes exhaust mechanism to collect the gas that gives off and loopback to the dust remover and spray the absorption tower and carry out purification treatment. Utilize the utility model discloses a clean type rotary kiln has solved the waste gas pollution that the rotary kiln exists among the prior art and the extravagant problem of waste heat.

Drawings

Fig. 1 is a schematic structural view of the clean rotary kiln of the present invention.

In the figure: the rotary kiln comprises a rotary kiln 1, a kiln body 11, a towing ring 12, a gear ring 13, a towing wheel 14, a towing wheel seat 15, a gear 16, a gear seat 17, a gearbox 18, a motor 19, a combustion chamber 2, a waste heat boiler 3, a dust remover 4, a spray absorption tower 5, a tower body 51, a spray pipe 52, a spray head 53, a liquid collecting tank 54, a liquid storage tank 55, a return pipe 56, a return pump 57, a chimney 58, a gas collecting hood 6, a second gas collecting hood 7, an exhaust mechanism 8, an exhaust hood 81, an exhaust pipeline 82 and an exhaust fan 83.

Detailed Description

In order to make the technical solution of the present invention easier to understand, the present invention adopts the mode of the specific embodiment with reference to the attached drawings, and the technical solution of the present invention is clearly and completely described.

Example 1:

as shown in fig. 1, the clean rotary kiln of the embodiment includes a rotary kiln 1, one end of the rotary kiln 1 is provided with a combustion chamber 2, the other end is provided with a waste heat boiler 3, an air outlet of the waste heat boiler 3 is communicated with a dust remover 4, an air outlet of the dust remover 4 is communicated with a spray absorption tower 5, an air inlet of the rotary kiln 1 is provided with a first air collecting hood 6, and an air outlet of the combustion chamber 2 extends into the first air collecting hood 6; and a second gas collecting hood 7 is arranged at the gas inlet of the waste heat boiler 3, the gas outlet of the rotary kiln 1 extends into the second gas collecting hood 7, and an exhaust mechanism 8 is arranged above the rotary kiln 1.

The rotary kiln 1 comprises a kiln body 11, a towing ring 12 and a toothed ring 13 are arranged on the kiln body 11, a towing wheel 14 is arranged on the lower side of the towing ring 12, the towing wheel 14 is assembled on a towing wheel seat 15, a gear 16 is arranged on the lower side of the toothed ring 13, the gear 16 is assembled on a gear seat 17, the gear 16 is connected with a power output end of a gear box 18, and the gear box 18 is connected with a power output end of a motor 19.

The spraying absorption tower 5 comprises a tower body 51, a spraying pipe 52 is arranged at the inner top of the tower body 51, a spray nozzle 53 is arranged on the spraying pipe 52, a liquid collecting tank 54 is arranged at the inner bottom of the tower body 51, the liquid collecting tank 54 is communicated with a liquid storage tank 55, the liquid storage tank 55 is communicated with the spraying pipe 52 through a return pipe 56, a return pump 57 is arranged on the return pipe 56, and a chimney 58 is arranged at the top of the tower body 51. The sump 54 is of inverted conical shape. The shower pipe 52 is a ring pipe.

The exhaust mechanism 8 comprises an exhaust hood 81 arranged above the rotary kiln 1, an exhaust pipeline 82 is connected to the exhaust hood 81, an exhaust fan 83 is arranged on the exhaust pipeline 82, and an air outlet end of the exhaust pipeline 82 is communicated with the dust remover 4. The exhaust hood 81 is a semi-cylindrical shell which is horizontally arranged, and the opening of the exhaust hood 81 is downward.

The utility model discloses a theory of operation: when the kiln body support device is used, the motor 19 drives the gear 16 to rotate through the gearbox 18, the gear 16 is meshed with the gear ring 12 to drive the kiln body 11 to rotate, and the tug 14 rotates along with the rotation and supports the kiln body 11 through the tug 12. After the combustion coal powder in the combustion chamber 2 enters the kiln body 11 for reaction, the combustion coal powder is discharged into the waste heat boiler 3 from the gas outlet of the kiln body 11, the waste heat in the waste gas is effectively utilized, then the combustion coal powder enters the dust remover 4 for dust removal treatment, finally the combustion coal powder enters the spray absorption tower 5 for spray absorption, the clean gas is discharged through a chimney 58, the spray absorbed water is stored in a liquid storage tank 55 and is conveyed to a spray pipe through a return pipe 56 for cyclic leaching.

It should be noted that the embodiments described herein are only some of the embodiments of the present invention, not all implementations of the present invention, and the embodiments are only exemplary, and only serve to provide examiners and the public with a more intuitive and clear way to understand the contents of the present invention, but not to limit the technical solutions of the present invention. Without departing from the concept of the present invention, all the other embodiments that can be conceived by those skilled in the art without creative efforts, and other simple replacements and various changes to the technical solution of the present invention, all belong to the protection scope of the present invention.

Claims

1. A clean rotary kiln is characterized by comprising a rotary kiln (1), wherein one end of the rotary kiln (1) is provided with a combustion chamber (2), the other end of the rotary kiln is provided with a waste heat boiler (3), an air outlet of the waste heat boiler (3) is communicated with a dust remover (4), an air outlet of the dust remover (4) is communicated with a spray absorption tower (5), an air inlet of the rotary kiln (1) is provided with a first gas collecting hood (6), and an air outlet of the combustion chamber (2) extends into the first gas collecting hood (6); and a second gas collecting hood (7) is arranged at the gas inlet of the waste heat boiler (3), the gas outlet of the rotary kiln (1) extends into the second gas collecting hood (7), and an exhaust mechanism (8) is arranged above the rotary kiln (1).

2. The cleaning type rotary kiln as claimed in claim 1, wherein the rotary kiln (1) comprises a kiln body (11), a towing ring (12) and a toothed ring (13) are arranged on the kiln body (11), a towing wheel (14) is arranged on the lower side of the towing ring (12), the towing wheel (14) is assembled on a towing wheel seat (15), a gear (16) is arranged on the lower side of the toothed ring (13), the gear (16) is assembled on a gear seat (17), the gear (16) is connected with a power output end of a gearbox (18), and the gearbox (18) is connected with a power output end of a motor (19).

3. The cleaning type rotary kiln according to claim 1, wherein the spray absorption tower (5) comprises a tower body (51), a spray pipe (52) is arranged at the inner top of the tower body (51), a spray head (53) is arranged on the spray pipe (52), a liquid collecting tank (54) is arranged at the inner bottom of the tower body (51), the liquid collecting tank (54) is communicated with a liquid storage tank (55), the liquid storage tank (55) is communicated with the spray pipe (52) through a return pipe (56), a return pump (57) is arranged on the return pipe (56), and a chimney (58) is arranged at the top of the tower body (51).

4. A rotary kiln of the cleaning type according to claim 3, characterised in that the sump (54) is of an inverted cone shape.

5. A rotary kiln according to claim 3, characterised in that the spray pipe (52) is an annular pipe.

6. The cleaning type rotary kiln according to claim 1, wherein the exhaust mechanism (8) comprises an exhaust hood (81) arranged above the rotary kiln (1), an exhaust pipeline (82) is connected to the exhaust hood (81), an exhaust fan (83) is arranged on the exhaust pipeline (82), and an air outlet end of the exhaust pipeline (82) is communicated with the dust remover (4).

7. The rotary kiln as claimed in claim 6, wherein the exhaust hood (81) is a semi-cylindrical housing horizontally disposed, and the exhaust hood (81) is opened downward.