CN210980827U - Kiln head cooling device - Google Patents

Abstract

The utility model discloses a kiln head cooling device. Including: Expansion joints mounted on each fixed floor. The expansion joint includes a corrugated pipe, the upper end of the corrugated pipe is connected with an upper flange plate, the right end of the upper flange plate is provided with an outlet hole, the lower end of the corrugated pipe has a lower flange plate, and the left end of the lower flange plate is provided with an outlet hole. There are inlet holes, and the upper flange plate and the lower flange plate are provided with a first screw hole, a second screw hole and a third screw hole at equal intervals from left to right near the long sides of both ends. The inlet hole at the lower end of the expansion joint at the lower left end of the rotary kiln is connected with an inlet pipe, the outlet hole at the left end of the expansion joint at the lower end of the rotary kiln is connected with an outlet pipe, and other inlet holes and outlet holes of the expansion joint are connected. The holes are connected end to end in sequence through connecting pipes. The beneficial effect of the utility model is that the previous air-cooling by convection is changed into a dual-purpose mode of conduction air-cooling and water-cooling. Improved cooling efficiency.

Description

A kiln head cooling device

technical field

The utility model relates to an industrial cooling device, in particular to a kiln head cooling device.

Background technique

At present, the cooling of the kiln head mainly relies on air cooling, but for the semi-closed structure inside the kiln head, the convection air is difficult to circulate, and the cooling effect is poor. A more efficient cooling system needs to be designed.

SUMMARY OF THE INVENTION

The purpose of this utility model is to solve the above problems, and provide a kiln head cooling device.

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

A kiln head cooling device includes expansion joints installed on each fixed rib.

The expansion joint includes a corrugated pipe, the upper end of the corrugated pipe is connected with an upper flange plate, the right end of the upper flange plate is provided with an outlet hole, the lower end of the corrugated pipe has a lower flange plate, and the left end of the lower flange plate is provided with an outlet hole. There are inlet holes, and the upper flange plate and the lower flange plate are provided with a first screw hole, a second screw hole and a third screw hole at equal intervals from left to right near the long sides of both ends.

The inlet hole at the lower end of the expansion joint at the lower left end of the rotary kiln is connected with an inlet pipe, the outlet hole at the left end of the expansion joint at the lower end of the rotary kiln is connected with an outlet pipe, and other inlet holes and outlet holes of the expansion joint are connected. The holes are connected end to end in sequence through connecting pipes.

The first screw hole, the second screw hole and the fixing rib of the upper flange plate of the expansion joint are connected by bolts. The third screw hole on the upper flange plate and the first screw hole, the second screw hole and the third screw hole on the lower flange plate are process holes and have no practical effect.

Preferably, the wall thickness of the bellows is 1.6 mm, and the material is alloy steel.

Preferably, the number of the expansion joints is 8.

The beneficial effect of the utility model is that the previous air-cooling by convection is changed into a dual-purpose mode of conduction air-cooling and water-cooling. The advantage of air cooling is that it consumes less resources, and the disadvantage is low efficiency. The advantage of water cooling is that the specific heat capacity of water is large and the efficiency is high. The disadvantage is that the water circulation treatment is complicated and consumes resources. The producer can flexibly choose the cooling mode according to the specific situation. Improved cooling efficiency.

Description of drawings

Figure 1 is a partial schematic diagram of the kiln head cover.

Figure 2 is a schematic diagram of the connection of the structural expansion joint of the present invention.

Fig. 3 is the overall water circulation pipeline diagram of the structure of the utility model.

Figure 4 is a cross-sectional view of the structural expansion joint of the present invention.

Fig. 5 is the axonometric view of the structural expansion joint of the utility model.

In the figure: Rotary kiln 1, kiln head cover cylinder 21, kiln head cover skirt 22, fixed rib 3, bolt 4, expansion joint 5, upper flange plate 51, lower flange plate 52, first screw hole 53 , the second screw hole 54 , the third screw hole 55 , the outlet hole 56 , the inlet hole 57 , the bellows 58 , the inlet pipe 61 , the connecting pipe 62 , and the outlet pipe 63 .

Detailed ways

The following examples can make those skilled in the art understand the present invention more comprehensively, but do not limit the present invention in any way.

As shown in FIG. 1, it is a partial schematic diagram of the kiln head cover. In the figure, the end of the rotary kiln 1 is provided with a kiln head cover cylinder 21, and the kiln head cover skirt 22 is arranged at the position of the kiln head cover cylinder 21 close to the rotary kiln 1. The kiln head cover cylinder 21 is connected to the rotary kiln 1 through the fixed rib plate 3 .

As shown in FIGS. 2-5 , a kiln head cooling device includes expansion joints 5 installed on each fixed rib 3 .

The expansion joint 5 includes a corrugated pipe 58, the upper end of the corrugated pipe 58 is connected with an upper flange plate 51, the right end of the upper flange plate 51 is provided with an outlet hole 56, and the lower end of the corrugated pipe 58 has a lower flange plate 52, The left end of the lower flange plate 52 is provided with an inlet hole 57, and the upper flange plate 51 and the lower flange plate 52 are provided with a first screw hole 53 and a second screw hole at equal intervals from left to right near the long sides of both ends. 54 and the third screw hole 55.

The inlet hole at the lower end of the expansion joint 5 at the lower left end of the rotary kiln 1 is connected with an inlet pipe 61, and the outlet hole at the left end of the expansion joint 5 at the lower end of the rotary kiln 1 is connected with an outlet pipe 63. The expansion joint is connected with an outlet pipe 63. The other inlet holes 57 and outlet holes 56 of 5 are connected end to end in sequence through the connecting pipe 62 .

The first screw holes 53 and the second screw holes 54 of the upper flange plate 51 of the expansion joint 5 and the fixing rib plate 3 are connected by bolts 4 . The third screw hole 55 of the upper flange plate 51 and the first screw hole 53 , the second screw hole 54 and the third screw hole 55 of the lower flange plate 52 are process holes and have no practical function.

The wall thickness of the bellows 58 is 1.6 mm, and the material is alloy steel.

The number of the expansion joints 5 is 8.

The working principle of the utility model is as follows:

When relying on water cooling, cold water enters the first expansion joint 5 through the inlet pipe 61 , and then enters other expansion joints 5 through the connecting pipe 62 in turn, and flows out from the outlet hole of the last expansion joint 5 .

When working by air cooling, the cold air enters the first expansion joint 5 through the inlet pipe 61 , and then enters the other expansion joints 5 in sequence through the connecting pipe 62 , and flows out from the outlet hole of the last expansion joint 5 .

The function of the expansion joint 5 is to reduce the influence of thermal stress caused by overheating on the life of the equipment.

Change the previous through convection air cooling to conduction air cooling and water cooling dual-purpose mode. Improved cooling efficiency. The advantage of air cooling is that it consumes less resources, and the disadvantage is low efficiency. The advantage of water cooling is that the specific heat capacity of water is large and the efficiency is high. The disadvantage is that the water circulation treatment is complicated and consumes resources. The producer can flexibly choose the cooling mode according to the specific situation.

Those skilled in the art should understand that the above embodiments are only exemplary embodiments, and various changes, substitutions and alterations may be made without departing from the spirit and scope of the present invention.

Claims (4)

1. A kiln head cooling device, characterized in that it comprises: a rotary kiln (1), the end of the rotary kiln (1) is provided with a kiln head cover cylinder (21), and the kiln head cover skirt (22) is provided with At the position where the kiln head cover cylinder (21) is close to the rotary kiln (1), the kiln head cover cylinder (21) is connected to the rotary kiln (1) through a fixed rib (3), An expansion joint (5) is installed on the fixed rib plate (3), the expansion joint (5) includes a corrugated pipe (58), and an upper flange plate (51) is connected to the upper end of the corrugated pipe (58). The right end of the flange plate (51) is provided with an outlet hole (56), the lower end of the bellows (58) is provided with a lower flange plate (52), and the left end of the lower flange plate (52) is provided with an inlet hole (57), so The upper flange plate (51) and the lower flange plate (52) are provided with a first screw hole (53), a second screw hole (54) and a third screw hole ( 55), The inlet hole at the lower end of the expansion joint (5) at the lower left end of the rotary kiln (1) is connected with an inlet pipe (61), and the outlet hole at the left end of the expansion joint (5) at the lower end of the rotary kiln (1) An outlet pipe (63) is connected, and the other inlet holes (57) and outlet holes (56) of the expansion joint (5) are connected end-to-end through the connecting pipe (62). 2 . The kiln head cooling device according to claim 1 , wherein the bellows ( 58 ) has a wall thickness of 1.6 mm and is made of alloy steel. 3 . 3 . The kiln head cooling device according to claim 1 , wherein the number of the expansion joints ( 5 ) is 8. 4 . 4. The kiln head cooling device according to claim 1, wherein the first screw hole (53) and the second screw hole (54) of the upper flange plate (51) of the expansion joint (5) ) and the fixing rib (3) are connected by bolts (4).

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