CN219454630U - Sealing structure of heat collector of rotary kiln heat accumulator - Google Patents

Abstract

The utility model relates to a sealing structure of a rotary kiln heat accumulator, which comprises a heat accumulator body, wherein the heat accumulator body comprises a shell, a feed inlet and a discharge outlet, a first fixed baffle plate and a second fixed baffle plate are fixed on the inner walls of two ends of the shell, a sealing ring is arranged between the first fixed baffle plate and the second fixed baffle plate, a discharge outlet is arranged at the bottom of the sealing ring, a first rotating baffle plate and a second rotating baffle plate which are fixed on the outer wall of the rotary kiln are arranged on the inner sides of the first fixed baffle plates at two ends, a gap is arranged between the first rotating baffle plate and the second rotating baffle plate and the shell, and a distance is arranged between the first rotating baffle plate and the second rotating baffle plate. According to the utility model, the first fixed baffle, the second fixed baffle, the first rotating baffle and the second rotating baffle are arranged to form a multistage sealing structure, and the multistage sealing structure can realize sealing and dredging of the heat accumulator under the condition that the rotary kiln cylinder rotates and the shell of the heat collector is fixed, so that the sealing effect is better, and the leakage risk of the heat accumulator is reduced.

Description

Sealing structure of heat collector of rotary kiln heat accumulator

Technical Field

The utility model belongs to the technical field of waste heat recovery and utilization, and particularly relates to a sealing structure of a heat collector of a heat accumulator of a rotary kiln.

Background

Along with the acceleration of the industrialization process in China, waste heat resources widely existing in the production process of each industrial link are also quite abundant. Under the condition, a large amount of waste heat resources from the industrial field are fully utilized, so that not only can the energy conservation and consumption reduction be realized and the energy utilization efficiency be improved, but also the energy consumption of unit products can be reduced, and obvious economic and ecological benefits are obtained. At present, radiant heat utilization of rotary kiln cylinders of cement kilns, lime kilns, metallurgical kilns, chemical kilns and the like is concentrated on radiant heat heating, radiant heat refrigeration and radiant heat supply of domestic hot water, and the radiant heat is used for heating kiln inlet air after heat is taken. But the heat radiation heat extraction temperature is unstable, the heat exchange effect is not ideal, and the heat extraction effect is better than the heat exchange effect through a calandria by contacting the steel shot heat accumulator with the rotary kiln cylinder. However, in the rotary kiln rotating process, the shell is relatively static, so that the sealing effect of the conventional structure on the heat accumulator is poor, and the heat accumulator is easy to leak.

Disclosure of Invention

The utility model aims to provide a sealing structure of a rotary kiln heat accumulator heat collector, which solves the problems that the sealing effect on the heat accumulator is poor and the heat accumulator is easy to leak in the sealing structure.

The utility model relates to a sealing structure of a heat accumulator heat collector of a rotary kiln, which comprises a heat accumulator heat collector body arranged outside the rotary kiln, wherein the heat accumulator heat collector body comprises a shell sleeved outside the rotary kiln and not contacted with the rotary kiln, a feed inlet is arranged at the top of the shell, a discharge outlet is arranged at the bottom of the shell, a first fixed baffle and a second fixed baffle are fixed on the inner walls of two ends of the shell, a gap is reserved between the first fixed baffle and the second fixed baffle and the rotary kiln, a sealing ring is arranged between the first fixed baffle and the second fixed baffle, a discharge outlet is arranged at the bottom of the sealing ring, two ends of the sealing ring are respectively fixed with the first fixed baffle and the second fixed baffle, a first rotating baffle and a second rotating baffle fixed on the outer wall of the rotary kiln are arranged at the inner sides of the first fixed baffles and the second rotating baffle, a gap is arranged between the first rotating baffle and the second rotating baffle, and a gap is arranged between the first rotating baffle and the second rotating baffle.

Preferably, a rotating baffle III is arranged between the fixed baffle I and the fixed baffle II which are close to one end of the kiln head, the rotating baffle III is fixed with the outer wall of the rotary kiln, and a gap is arranged between the rotating baffle III and the sealing ring. The sealing effect is better.

Preferably, a guide plate is arranged between the first rotating baffles at the two ends, and the guide plate is fixed on the outer wall of the rotary kiln. The heat storage body can be used for diversion.

Preferably, the heat accumulator body is provided with a plurality of heat accumulator bodies along the axial direction of the rotary kiln. And the heat energy recycling is more fully performed.

Preferably, the feeding hole is arranged on the shell near one end of the kiln tail, and the two ends of the bottom of the shell are provided with the discharging holes.

Compared with the prior art, the utility model has the advantages that:

through setting up fixed baffle one, fixed baffle two, rotating baffle one and rotating baffle two, form multistage seal structure, under the fixed circumstances of shell of rotary kiln barrel rotation and heat collector, this multistage seal structure can realize sealing and dredging the heat accumulator, and sealed effect is better, reduces the heat accumulator and reveal the risk.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the internal structure of the present utility model;

FIG. 3 is a schematic view of a first rotary shutter;

FIG. 4 is a schematic structural view of a seal ring;

FIG. 5 is a schematic view of the rotary kiln according to the present utility model;

in the figure: 1. the heat accumulator comprises a first rotating baffle, a second rotating baffle, a third rotating baffle, a first fixed baffle, a second fixed baffle, a 6 sealing ring, a 7 discharging hole, a 8, a shell, a 9, a rotary kiln, a 10, a guide plate, a 11, a heat accumulator heat collector body, a 12, a feed inlet, a 13 and a discharge hole.

Detailed Description

The following detailed description of the utility model refers to the accompanying drawings.

In embodiment 1, as shown in fig. 1 to 5, the utility model is a sealing structure of a rotary kiln heat accumulator, comprising a heat accumulator body 11 arranged outside a rotary kiln 9, wherein the heat accumulator body 11 comprises a shell 8 sleeved outside the rotary kiln 9 and not contacted with the rotary kiln 9, a feed inlet 12 is arranged at the top of the shell 8, a discharge outlet 13 is arranged at the bottom of the shell 8, a first fixed baffle 4 and a second fixed baffle 5 are fixed on the inner walls of two ends of the shell 8, a gap is reserved between the first fixed baffle 4 and the second fixed baffle 5 and the rotary kiln 9, a sealing ring 6 is arranged between the first fixed baffle 4 and the second fixed baffle 5, a discharge outlet 7 is arranged at the bottom of the sealing ring 6, two ends of the sealing ring 6 are respectively fixed with the first fixed baffle 4 and the second fixed baffle 5, a first rotating baffle 1 and a second rotating baffle 2 fixed on the outer wall of the rotary kiln 9 are arranged at the inner sides of the first fixed baffles 4 at two ends, a gap is arranged between the first rotating baffle 1 and the second rotating baffle 2 and the shell 8, and a gap is arranged between the first rotating baffle 1 and the second rotating baffle 2.

The heat-body heat-taking device adopts solid particle steel shots as heat-absorbing medium. Because the kiln tail of the cement rotary kiln is higher than the kiln head, the thermal expansion expands from the kiln tail to the kiln head. The left end is a kiln tail, and the right end is a kiln head. The feed inlet 12 is located inside the first rotary baffle 1.

Because the kiln head is lower, the steel shots are easy to flow out, and the kiln head is tightly sealed. The kiln tail end is higher, and the steel shot is difficult for flowing out, and seal structure is simpler. A rotary baffle III 3 is arranged between the fixed baffle I4 and the fixed baffle II 5 which are close to one end of the kiln head, the rotary baffle III 3 is fixed with the outer wall of the rotary kiln 9, and a gap is arranged between the rotary baffle III 3 and the sealing ring 6. Therefore, 4-level sealing is adopted at the tail end of the kiln, and 5-level sealing is adopted at the lower end of the kiln head.

When the rotary kiln 9 is used for discharging the heat accumulator, most particles are discharged from the middle of the rotary baffle 1 and the rotary baffle 2 at the bottom of the rotary kiln 9, and a small part of particles penetrate through a gap between the rotary baffle 2 and the shell 8 to enter a space between the rotary baffle 2 and the fixed baffle 4. Then the particles are discharged at the bottom along with the rotation of the rotary kiln 9, if the particles enter the middle of the rotary baffle III 3 and the fixed baffle I4 or further enter the space between the rotary baffle III 3 and the fixed baffle II 5, the particles are discharged from a discharge hole 7 at the bottom of the sealing ring 6, and finally are discharged out of the heat collector along with the materials through a discharge hole.

In embodiment 2, on the basis of embodiment 1, a deflector 10 is arranged between the first rotating baffles 1 at two ends, and the deflector 10 is fixed on the outer wall of the rotary kiln 9. The heat accumulator is fed from the rotary kiln 9 near the feed inlet 12 at the kiln tail side. Discharging from the lower discharge port 13. The material rolls in the guiding gutter of the guiding plate 10 on the surface of the rotary kiln 9.

The heat accumulator body 11 is provided with a plurality of heat accumulator bodies along the axial direction of the rotary kiln 9.

The feed inlet 12 is arranged on the shell 8 near one end of the kiln tail, and the two ends of the bottom of the shell 8 are provided with discharge outlets 13.

In summary, the first fixed baffle, the second fixed baffle, the first rotating baffle and the second rotating baffle are arranged to form the multi-stage sealing structure, and the multi-stage sealing structure can realize sealing and dredging of the heat accumulator under the condition that the rotary kiln cylinder rotates and the shell of the heat collector is fixed, so that the sealing effect is better, and the leakage risk of the heat accumulator is reduced.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art. The technical scheme of the utility model can also provide a solution which is obviously different from the prior art aiming at the technical problem that the prior art solution is too single.

In the description of the present utility model, the terms "inner", "outer", "longitudinal", "transverse", "upper", "lower", "top", "bottom", etc. refer to the orientation or positional relationship based on that shown in the drawings, only for convenience in describing the present utility model, and do not require that the present utility model must be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Claims (5)

1. The utility model provides a rotary kiln heat accumulator heat collector seal structure, is including setting up heat accumulator heat collector body (11) outside rotary kiln (9), heat accumulator heat collector body (11) including cover in rotary kiln (9) outside rather than contact shell (8), shell (8) top is equipped with feed inlet (12), and the bottom of shell (8) is equipped with discharge gate (13), its characterized in that: a first fixed baffle (4) and a second fixed baffle (5) are fixed on the inner walls of the two ends of the shell (8), a gap is reserved between the first fixed baffle (4) and the second fixed baffle (5) and the rotary kiln (9), a sealing ring (6) is arranged between the first fixed baffle (4) and the second fixed baffle (5), a discharge opening (7) is arranged at the bottom of the sealing ring (6), the two ends of the sealing ring (6) are respectively fixed with the first fixed baffle (4) and the second fixed baffle (5), a first rotating baffle (1) and a second rotating baffle (2) fixed on the outer walls of the rotary kiln (9) are arranged on the inner sides of the first fixed baffles (4) at the two ends, a gap is reserved between the first rotating baffle (1) and the second rotating baffle (2) and the shell (8), and a gap is reserved between the first rotating baffle (1) and the second rotating baffle (2).

2. The rotary kiln heat accumulator heat collector seal structure of claim 1, wherein: a rotary baffle III (3) is arranged between the fixed baffle I (4) and the fixed baffle II (5) which are close to one end of the kiln head, the rotary baffle III (3) is fixed with the outer wall of the rotary kiln (9), and a gap is arranged between the rotary baffle III (3) and the sealing ring (6).

3. The rotary kiln heat accumulator heat collector seal structure of claim 2, wherein: a guide plate (10) is arranged between the first rotating baffles (1) at the two ends, and the guide plate (10) is fixed on the outer wall of the rotary kiln (9).

4. A rotary kiln regenerator heat extractor seal structure in accordance with claim 3, wherein: the heat accumulator body (11) is provided with a plurality of heat accumulator bodies along the axial direction of the rotary kiln (9).

5. The rotary kiln heat accumulator heat collector seal structure of claim 1, wherein: the feed inlet (12) is arranged on the shell (8) close to one end of the kiln tail, and the two ends of the bottom of the shell (8) are provided with discharge ports (13).