RU2454621C1 - Air supply device and cooling plant for hot granulated/lump material, which is equipped with air supply device - Google Patents

Abstract

FIELD: machine building.

SUBSTANCE: air supply device to hot granulated/lump material cooling bogie and plant for that material includes many bogies, movable and stationary annular ducts forming an annular air channel and device with water seal, which contains annular chamber 24a and 24B of water seal. Upper space 24i and 24i of water cooling chamber on the side of movable air channel 25 is interconnected with upper part of movable air channel 25 which is formed in circumferential direction. Air damper 81 which is closed in zone B of loading and unloading is provided at each connection of air pipeline 26 and opens in cooling zone C.

EFFECT: improved operating efficiency and maintenance characteristics.

10 cl, 16 dwg

Description

FIELD OF THE INVENTION

The present invention relates to an air supply device for supplying air to a trolley that moves along the trajectory of the trolley, and a cooling unit equipped with an air supply device for hot granular / lump material. The cooling unit loads the hot agglomerated ore, pelletized ore, etc. into the cart and cools it.

State of the art

Agglomerated ore cooling plant is one of the cooling plants for hot granular / lump material. The agglomerated ore cooler is configured so that the agglomerated ore, which is hot granular / lump material, is loaded into the carriage and the carriage moves generally along the cart's circular path, while cooling air is blown from the bottom to cool the agglomerated ore carts to the top of the cart (see, for example, references 1-3 to patents).

In an agglomerated ore cooler, a trolley formed of a plurality of connected tray trolleys for loading the agglomerated ore is placed between the inner circumferential side wall and the outer circumferential side wall, which extend along a circular path, and can move freely. A cold air chamber is provided in the lower part of the tray trolley, into which cooling air is supplied. The cold air chamber of each tray carriage is connected to the stationary annular box through a junction box. The stationary annular box is connected to the movable annular box, and the movable annular box is inserted into the stationary annular box through a device with a water seal with the possibility of free movement. In addition, a cooling air supply device for supplying cooling air is connected through a connecting duct.

The device with a water seal has an inner circumferential annular chamber with a water seal and an outer circumferential annular chamber with a water seal, which are formed in a movable annular box. The device with a water seal contains a plate of water seal, the lower ends of which are lowered into the sealing water in the inner circumferential annular chamber with a water seal and in the outer circumferential annular chamber with a water seal; water seal plates are formed in a stationary annular box.

Next, with reference to Fig.9-15 describes an example of the above cooling installation for sinter ore.

In Fig.10, a trolley 1 is provided, which can freely move along the annular path A of the trolley shown in Fig.9. The cart 1 moves the agglomerated ore from the material supply zone 8 to the material discharge zone 9 through the cooling zone C, cooling the agglomerated ore with cooling air. The material supply zone 8 and the material discharge zone 9 are hereinafter collectively referred to as the supply and discharge zone B (or atmospheric zone B). In some cases, the waste heat recovery zone D is provided in part of the cooling zone C, as shown in FIG.

The trolley 1 comprises a plurality of tray trolleys 7, an inner annular side wall 3, and an outer annular side wall 4, as shown in FIG. 10. On a pair of guide rails 6a, left and right, located along the trajectory A of the trolley with the help of the guide wheels 5a, there are many connected to each other tray trolleys 7, which can be freely moved. The inner annular side wall 3 and the outer annular side wall 4 are connected to each other by means of a connecting beam 2 and are provided on the trolley 7 and include a side wheel 5b guided by the side rail 6b. Each of the tray trolleys 7 is connected to the horizontal axis between the annular side walls 3 and 4 at its front so that it can freely tilt on the axis in the lower direction. In the material unloading zone 9, the guide rails 6a are bent downward relative to the horizontal direction, as shown in FIG. 11, for tilting the trolley 7 downward using the guide wheels 5a for unloading the loaded agglomerated ore downward.

Each of the chute trolleys 7 comprises, as shown in FIG. 12, a chute trolley main body 11 including guide wheels 5a on both sides and a cold air chamber 12 located at the bottom of the chute trolley main body. A plate 13 with air holes is provided on the upper surface of the cold air chamber 12, in which a plurality of air holes are formed. In addition, the cold air chamber 12 is provided with openings, for example, an opening 14, under the inner annular wall 3. The inner annular wall 3 of the trolley 1 is provided along the annular path A of the trolley shown in Fig. 9 with a movable annular duct 21, the upper surface of which is open, as shown in FIGS. 12 and 13. The cold air chamber 12 of the trolley 7 and the movable annular duct 21 communicate with each other through the connecting duct 26 connected to the hole 14. In the movable annular duct 21, the inner part 22 th side wall and part 23 of the outer side wall form a double-walled structure using the inner sheets 22a and 23a and the outer sheets 22b and 23b, respectively, so that an inner circumferential annular chamber 24a with a water seal and an outer circumferential annular chamber 24b with a water seal with a directional upward opening, and between the portion 22 of the inner side wall and the portion 23 of the outer side wall, an annular movable air channel 25 is formed.

The stationary annular duct 31 is designed to completely close the upper part of the movable annular duct 21 and to form an annular stationary air duct 37 in communication with the movable air duct 25. In the stationary annular duct 31, the top cover 40 and both portions 32 and 33 of the side walls form C -shaped, having a cutaway hole on the lower side. The top cover 40 in the cooling zone C is connected to a plurality of middle ducts 38 extending from the arcuate air manifold 39 shown in FIGS. 9 and 10 to supply cooling air to the stationary air channel 37. In the supply and discharge zone B (material supply zone 8 and zone 9 of the discharge of material) there are no connections of the middle ducts 38.

The stationary annular duct 31 is connected to the movable annular duct 21 through a water seal device 28, as shown in FIGS. 12 and 13. The water seal device 28 comprises an inner circumferential annular chamber 24a with a water seal, an outer circumferential annular chamber 24b with a water seal, and water seal plates 34a and 34b that are suspended from both sides 32 and 33 of the side walls of the stationary annular duct 31 by means of a mounting shelf 35, so that their lower ends are placed in water in the annular chambers 24a and 24b with water neniem on both sides. The covers 36a and 36b are mounted protruding above the respective water seal plates 34a and 34b and on the outside of these plates and cover the annular water seal chambers 24a and 24b from the outside. On Fig and 13 poses. 24i denotes the upper chamber space with a water seal on the side of the movable air channel 25.

The fixed plate 42 is attached to the stationary annular duct 31 in that part that is not related to the middle duct 38, by means of an expansion joint 41. The labyrinth seal sheets 43a and 43b are attached to the upper end parts of the inner sheet 22a and the outer sheet 23a, the upper ends of which are located next to the fixed plate 42 to create a labyrinth seal.

In the upper part of the trajectory A of the trolley there is a fixed casing 51 formed of inner and outer circumferential fixed plates 51a and 51b, which are installed at the upper end parts of the inner and outer circumferential side walls 23 and 24 using sealing devices, and a fixed upper plate 51c for connection the upper end parts of the inner and outer circumferential fixed plates 51a and 51b. The outlet box 52 is connected in a fixed location to the fixed casing 51.

In addition, for each connecting duct 26 (each trolley carriage 7), a partition 47 is provided in the movable air channel 25 of the movable annular duct 21, as shown in FIG. At the upper end of the partition 47, next to the fixed plate 42, a labyrinth seal 43c is provided. This allows you to separate the movable air channel 25 so that each section has a connecting duct 26 in the circumferential direction (in the direction of rotation). On the other hand, the device 28 with a water seal does not have such a partition. In some cases, the waste heat recovery zone D may be provided in part of the cooling zone C, as shown in FIG. In the waste heat recovery zone D, heat is recovered from the hot air that is used to cool the sintered ore, and then the air, again as cooling air, is sent to the stationary annular duct 31.

Patent Reference 1: JP-A-4-139380

Patent Reference 2: JP-A-6-257955

Patent Reference 3: JP-A-2000-310489

Disclosure of invention

A cooling plant for agglomerated ore of the above construction has the following problems.

The pressure in the movable air channel 25 and the cold air chamber 12 is the atmospheric pressure in the supply and discharge zone B. On the other hand, the pressure in the movable air channel 25 in the cooling zone C is 300-500 mm of water. Art. (hereinafter referred to as "differential pressure during cooling"). The latter pressure is also maintained in the upper space of the water seal chamber 24i by means of the fixed plate 42 and the labyrinth seal sheets 43a, 43b and 43c of the structure. However, the length of the fixed plate 42 is 10 m or more, and therefore, taking into account the production technology, it is difficult to completely seal the fixed plate 42 having such a long length. In addition, as a result of long-term operation, a gap is formed between the labyrinth seal sheets 43a, 43b and 43c and the fixed plate 42, so that cooling air leaks in the spaces of the water cooling chambers 24i and 24i.

In addition, air in an amount equal to the air leakage into the supply and discharge zone B enters the upper spaces of the water cooling chambers 24i and 24i from the movable air channel 25 in the cooling zone C and forcibly flows in the direction of the supply and discharge zone B within the upper spaces chambers 24i and 24i water cooling due to the differential pressure of the cooling air. This causes a wave to form in the sealing water in the annular chambers 24a and 24b of the water seal in the supply and discharge zone B or air leakage of the labyrinth seal part to the movable air channel 25, which leads to the formation of water splashes in the movable channel 25 together with splashes of the sealing water in the annular water seal chambers 24a and 24b. Sealing water, splashed and accumulated in the movable air channel 25, additionally splashes around the trough carriage 7 and adheres to the wall surface in the feeding and unloading zone B or in the trolley carriage 7. The dust from the agglomerated ore sticks to the remaining water droplets and hardens and increases in size forming wet dust that causes malfunctions, such as corrosion or clogging of the trolley 7, and making normal operation difficult. In addition, the wave or splash of the sealing water degrades the performance of the water seal. This reduces cooling efficiency.

To solve these problems, the levels of the upper end of the partition wall 47 and the upper ends of the labyrinth seal sheets 43a, 43b and 43c should be adjusted throughout the controlled area so that the gaps between the fixed plate 42 and the partition become almost closed. However, it is difficult to control a large number of labyrinth seal sheets 43a, 43b, and 43c over a very large length of the movable annular box 21. The operation and wear of the installation lead to an additional increase in clearance and degrade seal performance, which cannot be fixed during operation of the installation.

By reference 3 to the patent, it is proposed that the upper spaces of the water seal chambers 24i and 24i on the side of the movable air duct 25 be replenished with compressed air (auxiliary air) in the supply and discharge zone B, as shown in FIG. 16, in order to prevent malfunctions caused by splashing sealing water. In other words, the inlet side branch 61a (auxiliary air supply means) is connected to a middle duct 38 provided at the end of the exit from the cooling zone C for the purpose of branching; the upper end part of the branch on the inlet side 61a is connected to the upper cover 40 of the stationary annular duct 31 provided at the entrance to the material discharge zone 9; the outlet side branch 61b (auxiliary air supply means) is connected to a middle duct provided at the inlet end of the cooling zone C for branching, and the upper end portion of the outlet side branch 61b is connected to the top cover 49 of the stationary annular duct 31 provided at the exit of zone 8 of the material supply. The auxiliary air supplied from the branches 61a and 61b is supplied to the upper spaces of the inner water seal chambers 24i and 24i from the space between the expansion joints 41, which are provided at intervals, through both side parts of the fixed plate 42. This allows auxiliary air to be replenished from the branches 61a and 61b, significantly reduce the air flow rate in the upper spaces of the water seal chambers 24i and 24i in the direction of the supply and discharge zones B. Accordingly, splashing of the sealing water can be prevented.

However, according to the method proposed by reference 3 to the patent, in order to create counterpressure, a large amount of auxiliary air must be supplied in case air leakage increases, which leads not only to an increase in cooling air leakage, but also to malfunctions due to loss of balance, which due to air leakage.

In view of the foregoing, it is an object of the present invention to provide an air supply device that is used to cool a hot granular / lump material, such as agglomerated ore and pelletized ore, and a cooling installation for a hot granular / lump material equipped with an air supply device, which Extremely efficient in operation and have excellent maintenance features.

To solve the above problem, the invention provides the following air supply device and a cooling unit for hot granular / lump material.

[one]. An air supply device comprising:

many trolleys arranged to move along the annular path of the trolley;

a movable annular box located along the trajectory of the trolley and connected to each of the trolleys by means of a connecting duct;

stationary annular box located along the trajectory of the trolley and inserted into the movable annular box using a device with a water seal with the possibility of free movement;

a movable annular box and a stationary box forming an annular air channel;

a device with a water seal, comprising an annular chamber of a water seal located along the path of the trolley, and a plate of a water seal having a lower end portion immersed in the sealing water in the annular chamber of the water seal; and

an atmospheric zone for stopping air leakage in the trolley provided in a predetermined position of the trajectory of the trolley;

characterized in that:

the upper space of the annular chamber of the water seal on the side of the annular air channel communicates with the annular air channel on the side of the movable annular duct,

the annular air channel on the side of the movable annular duct is connected in a circumferential direction, and a closing mechanism of the connecting air channel for closing the connecting air channel is provided in the atmospheric zone.

[2]. Air supply device according to [1],

characterized in that:

no partition is provided for dividing the movable air duct on the circumferential direction of the movable ring duct to provide the annular air duct on the movable ring duct side for connection in the circumferential direction.

[3]. Air supply device according to [1],

characterized in that:

a partition is provided in the partition with a cutout for separating the annular air duct on the side of the movable annular duct in the circumferential direction to provide the annular air duct on the side of the movable annular duct for connection in the circumferential direction.

[four]. The air supply device according to any one of paragraphs. [1] - [3],

characterized in that:

the closing mechanism of the connecting duct is arranged so that the connecting duct is provided with an air damper that closes in the atmospheric zone and opens in areas that are not related to the atmospheric zone.

[5]. The air supply device according to any one of paragraphs. [1] - [3],

characterized in that:

the closing mechanism of the connecting duct is arranged so that the stationary annular duct in the atmospheric zone is provided with a closing sheet of the connecting duct, and the inlet of the connecting duct is closed by means of a closing sheet of the connecting duct.

[6]. The air supply device according to any one of paragraphs. [1] - [5],

characterized in that:

it contains a sheet for protection against penetration of foreign material into the annular chamber of the water seal from the annular air channel,

a sheet for protection against penetration of foreign material is located in the upper part on the side of the annular air channel.

[7]. The air supply device according to any one of paragraphs. [1] - [6],

characterized in that:

it comprises means for collecting foreign material for collecting foreign material in the annular chamber of the water seal.

[8]. A chiller for hot granular / lump material, comprising:

air supply device according to any one of paragraphs. [1] - [7],

characterized in that the air supplied to the trolley from the air supply device is used to cool the hot granular / lump material.

[9]. Cooling unit for hot granular / lump material according to p. [8],

characterized in that:

trolley contains:

an annular side wall located inside and out;

and many tray trolleys for loading hot granular / lump material in the lower part of the annular side wall,

and

the air supplied to the trolley is cooling air for cooling the hot granular / lump material loaded on the tray trolley.

[10]. A chiller for hot granular / lump material according to [8] or [9],

characterized in that:

she contains

side rail for guiding and maintaining the movement of the trolley from the trolley side

and side wheels

and the side wheels are designed to adjust the position of the side wheels even while the trolley is moving.

The present invention provides an air supply device and a chiller for hot granular / lump material that are exceptionally efficient in operation and have excellent maintenance characteristics.

Brief Description of the Drawings

Figure 1 is an enlarged view of an integral part of an embodiment 1 according to the invention;

figure 2 is an enlarged view of an integral part of an embodiment 1 according to the invention;

figure 3 is an enlarged view of an integral part of an embodiment 1 according to the invention;

figure 4 is an enlarged view of an integral part of an embodiment 1 according to the invention;

5 is an enlarged view of an integral part of an embodiment 2 according to the invention;

6 is an enlarged view of an integral part of an embodiment 2 according to the invention;

7 is an enlarged view of an integral part of an embodiment 3 according to the invention;

Fig. 8 is an enlarged view of an integral part of embodiment 3 according to the invention;

Fig.9 is a full view in plan of an example of a standard cooling plant for sinter ore;

figure 10 is a sectional view of an integral part of an example of a standard cooling plant for sinter ore;

11 is a front view according to an example of a standard cooling plant for sinter ore;

Fig - standard cooling installation for sinter ore;

Fig - standard cooling installation for sinter ore;

Fig - standard cooling installation for sintered ore;

FIG. 15 is a full plan view of another example of a standard sinter plant for sinter ore; FIG.

Fig - standard cooling installation for sinter ore (reference 3 to the patent).

The implementation of the invention

The following is a description of embodiments of the present invention as examples of a cooling plant for sintered ore, hot granular / lump material. In the description and drawings, components having substantially the same function and design are denoted by the same reference numbers and signs.

Option 1

The basic design of the sinter ore cooler of Embodiment 1 is the same as the designs shown in Figs. 9-11 and described above.

The sinter ore cooler of Embodiment 1 includes a freely moving trolley 1 provided along an annular path A of the trolley shown in FIG. 9. Agglomerated ore is loaded into the carriage 1 and cooled with cooling air when it moves from the material supply zone 8 to the material discharge zone 9 through the cooling zone C.

The trolley 1 comprises a plurality of tray trolleys 7, an inner annular side wall 3, and an outer annular side wall 4, as shown in FIG. 10. On a pair of guide rails 6a, left and right, located along the trajectory A of the trolley with the help of the guide wheels 5a, there are many connected to each other tray trolleys 7, which can be freely moved. The inner annular side wall 3 and the outer annular side wall 4 are connected to each other by means of a connecting beam 2 and are provided on the tray carriage 7. The inner annular side wall 3 and the outer annular side wall 4 include a side wheel 5b guided by the side rail 6b. Each of the tray trolleys 7 is connected to the horizontal axis between the annular side walls 3 and 4 at its front so that it can freely tilt on the axis in the lower direction.

In the material unloading zone 9, the guide rails 6a are bent down to tilt the trolley 7 downward using the guide wheels 5a to download the loaded agglomerated ore.

Each of the chute trolleys 7 comprises, as shown in FIG. 12, a chute trolley main body 11 including guide wheels 5a on both sides and a cold air chamber 12 located at the bottom of the chute trolley main body 11. A plate 13 with air holes is provided on the upper surface of the cold air chamber 12, in which a plurality of air holes are formed. In addition, the cold air chamber 12 is provided with openings, for example, a hole 14, under the inner annular wall 3. The inner annular wall 3 is provided along the annular path A of the trolley shown in Fig. 9 with a movable annular box 21, the upper surface of which is open. The cold air chamber 12 of the trolley 7 and the movable annular duct 21 communicate with each other through the connecting duct 26 connected to the hole 14. In the movable annular duct 21, the inner side wall part 22 and the outer side wall part 23 form a double-walled structure using the inner sheets 22a and 23a and outer sheets 22b and 23b, respectively, so that an inner circumferential annular chamber 24a with a water seal and an outer circumferential annular chamber 24b with a water seal with an upwardly directed opening are formed thiium, and between the part 22 of the inner side wall and the part 23 of the outer side wall, an annular movable air channel 25 is formed.

The stationary annular duct 31 is designed to close the upper part of the movable annular duct 21 and to form an annular stationary air duct 37 in communication with the movable air duct 25. In the stationary annular duct 31, the top cover 40 and both portions 32 and 33 of the side walls form C- shaped, having a section in the hole on the bottom side. The top cover 40 in the cooling zone C is connected to a plurality of middle ducts 38 extending from the arcuate air manifold 39 for supplying cooling air to the stationary air channel 37. There are no any air supply and discharge zones (material supply zone 8 and material discharge zone 9) medium duct connections 38.

The stationary annular duct 31 is connected to the movable annular duct 21 through a water seal device 28, as shown in FIGS. 12 and 13. The water seal device 28 comprises an inner circumferential annular chamber 24a with a water seal, an outer circumferential annular chamber 24b with a water seal, and water seal plates 34a and 34b that are suspended from both sides 32 and 33 of the side walls of the stationary annular duct 31 by means of a mounting shelf 35, so that their lower ends are placed in water in the annular chambers 24a and 24b with water neniem on both sides. The covers 36a and 36b are mounted protruding above the respective water seal plates 34a and 34b and on the outside of these plates and cover the annular water seal chambers 24a and 24b from the outside.

In the upper part of the trajectory A of the trolley there is a fixed casing 51 formed of inner and outer circumferential fixed plates 51a and 51b, which are installed at the upper end parts of the inner and outer circumferential side walls 23 and 24 using sealing devices, and a fixed upper plate 51c for connection the upper end parts of the inner and outer circumferential fixed plates 51a and 51b. The outlet box 52 is connected in a fixed location to the fixed casing 51.

The waste heat recovery zone D may be provided in part of the cooling zone C of Embodiment 1, as shown in FIG. In the waste heat recovery zone D, heat is recovered from the hot air that is used to cool the agglomerated ore, and then the air is again sent for cooling to the stationary ring box 31.

Embodiment 1 in addition to the above has the following construction.

(A) A part of the labyrinth seal (fixed plate 42 and labyrinth seal sheets 43a and 43b) that is conventionally provided between the upper spaces of the water seal chambers 24i and 24i on the side of the movable air channel 25 and the movable air channel 25 is not provided, and the upper part of the upper the spaces of the water seal chambers 24i and 24i on the side of the movable air channel 25 and the upper part of the movable air channel 25 communicate with each other to ensure air circulation, as shown in FIGS. 1 and 2. FIGS. 1 and 2 lyayutsya sectional views of an essential part of the embodiment 1 of the invention.

(B) The baffle 47 and the labyrinth seal sheet 43c, which are conventionally provided in the movable air channel 25, are not provided, and the movable air channel 25 is intended to be connected in the circumferential direction, as shown in FIG. 3.

(C) An air damper 81 is provided on each of the connecting ducts 26.

The air damper 81 is in the closed state in the material supply zone B and closes the connecting duct 26, as shown in FIG. 1, to prevent air leakage. In addition, the air damper is in the open state in the cooling zone C and opens the connecting duct 26, as shown in FIG. 2, for supplying cooling air to the cold air chamber 12. The air damper 81 opens and closes automatically by mechanical or electrical control. In Embodiment 1, a rotary type air damper is used as the air damper 81. However, the invention is not limited to the foregoing. It is possible to use a rotating air damper or another type of air damper.

This design ensures that the movable air duct 25 and the upper spaces of the water seal chambers 24i and 24i form a fully interconnected annular duct that does not have baffles in the circumferential direction, and the operation of the air damper 81 properly prevents air leakage in the supply and discharge zones B. Accordingly, there are no differences in pressures between the supply and discharge zone B and the cooling zone C, so that no air flows in the movable air passage 25 from the cooling zone C to the supply and discharge zone B.

In addition, the movable air channel 25 and the upper spaces of the water seal chambers 24i and 24i are formed in a fully communicating annular duct without any partitions in the circumferential direction, while the pressure in the movable air channel 25 and the upper spaces of the water seal chambers 24i and 24i in the circumferential direction is one and the same.

Furthermore, no difference in pressure between the movable air passage 25 and the upper spaces of the water seal chambers 24i and 24i causes any air flow in the circumferential direction in the movable air passage 25 and the upper spaces of the water seal chambers 24i and 24i. Accordingly, no air flows into the supply and discharge zone B of the upper spaces of the water seal chambers 24i and 24i to the movable air channel 25.

This leads to the prevention of malfunction, for example, corrosion of the trolley 7 and the like, and to a decrease in cooling efficiency due to spraying of the sealing water from the annular chambers 24a and 24b with a water seal. In addition, the air damper 81 provided in the connecting duct 26 requires simple maintenance and is easy to control compared to a part of the standard labyrinth seal (fixed plate 43 and labyrinth seal sheets 43a, 43b and 43c), which provides excellent maintenance performance. In addition, the middle duct may also be provided on the inlet and outlet side of the supply and discharge zone B and on the outlet side of the waste heat recovery zone D, although it cannot be provided in the above locations, usually due to the fixed plate 42. This allows to improve cooling characteristics while maintaining the size of the system.

In the waste heat recovery zone D, heat recovery is performed for air having a high temperature due to cooling of the agglomerated ore, and then the air is again supplied as cooling air. This often leads to the ingress of foreign material into the cooling air, such as dust from agglomerated ore. The ingress and accumulation of such foreign material in the annular chambers 24a and 24b with a water seal leads to a deterioration in the characteristics of the water seal due to damage to the water seal plates 34a and 34b and the like. Accordingly, it is preferable to provide a sheet (barrier sheet) 85 for protection against the penetration of foreign material, which is designed to prevent the ingress of foreign material penetrating the cooling air into the annular chambers 24a and 24b with a water seal from the space between the upper ends of the inner sheets 22a and 23a of the ring chambers 24a and 24b with a water seal and a mounting shelf 35 through the upper spaces of the chambers 24i and 24i of the water seal in the upper parts of the upper spaces of the chambers 24i and 24i of the water seal, as shown in FIG. A sheet 85 for protection against penetration of foreign material can likewise be provided in a place that does not belong to the heat recovery zone D, of course, in the case where the foreign material enters the supplied cooling air.

In addition, in the case where foreign material, such as dust, enters the annular chambers 24a and 24b with a water seal and thereby accumulates in them, a suction device (not shown) for sucking and collecting foreign material from the annular chambers 24a is preferably provided and 24b with water seal. A suction device may be provided in the feeding and discharging area B, where space remains.

In addition, in the case of an inadequate spatial relationship between the side rail 6b and the side wheel 5b, which are provided for guiding and holding the moving trolley 7, the trolley 7 comes off a circle. This leads to the fact that the movable annular box 21 connected to the trolley through the connecting duct 26 also shifts when turning. As a result, there is a large difference in the relative location between the annular chambers 24a and 24b with water seals provided on the side of the movable annular box 21 and the water seal plates 34a and 34b provided on the side of the stationary annular box 31, so that the characteristics of the water seal are reduced. To prevent degradation, the clearance between the side rail 6b and the side wheel 5b, which causes an offset, must be adjusted. However, the gap can only be adjusted while stationary due to the usual stationary type of linear adjustment. Accordingly, during operation it is not possible to carry out the adjustment at the same time as confirming the pivot state, so that precise adjustment is difficult.

In view of the foregoing, the side wheel 5b is positioned so that it can be adjusted using a screw jack according to Embodiment 1. This makes it possible to adjust the position of the side wheel 5b even during operation and thereby maintain the rotation of the annular chambers 24a and 24b with a water seal around the circumference with high precision.

Option 2

Embodiment 2 is substantially similar in design to Embodiment 1 described above. However, in Embodiment 1, the movable air duct 25 is for communication in the circumferential direction, and the partition traditionally provided for in the movable air duct 25 is removed. On the other hand, part of the traditional partition 47 has a cutout so that the cooling air direction function will be supported at that time as the movable air channel 25 will communicate in the circumferential direction according to the embodiment 2.

In other words, in Embodiment 2, the baffle 47a formed by making a cutout in the upper part of the traditional baffle 47 is provided so that the movable air duct 25 communicates in the circumferential direction, as shown in FIGS. 5 and 6, which are sectional views an integral part of embodiment 2.

The upper part of the traditional partition 47 has cutouts, as shown in FIGS. 5 and 6. However, a slotted hole may be formed in part of the traditional partition 47.

Option 3

Embodiment 3 essentially has a structure similar to that of Embodiment 1 described above. However, in Embodiment 1, an air damper 81 is provided in the connecting duct 26 as a means for closing the connecting duct 26 in the supply and discharge zone B, while in Embodiment 3, a sheet for closing the connecting duct is mounted on a stationary annular duct 31 in zone B supply and discharge for closing the inlet of the connecting duct 26 using a sheet for closing the connecting duct.

In other words, in Embodiment 3, the sheet 91 (fixed sheet) for closing the connecting duct is attached to the lower end of the height indicator 92a of the fixed plate and the rod, which is attached to the upper cover 40 of the stationary ring box 31 with the nut 92b in the feeding and unloading area B for closing the inlet of the connecting duct 26 using a fixed plate 91, as shown in FIGS. 7 and 8. FIGS. 7 and 8 are sectional views of integral parts of Embodiment 3. The inlet of the connecting duct 26 is sealed up with a lantern ring 93a and a seal 93b, which are attached to the upper end of the rod level indicator 94a and a sealing ring attached to the connecting duct 26 with a nut 94b and a cup spring 94c to increase the effect of preventing air leakage when closing the inlet of the connecting duct 26 with a fixed plate 91.

Pos. 92c in FIG. 7 denotes a sealing mechanism provided between the rod 92a and the top cover 40. Pos. 94d in FIG. 7 denotes a sealing mechanism provided between the rod 93a and the connecting duct 26.

The position of the fixed plate 91 in height can be adjusted to the proper position using the rod 92a and nut 92b. The height position of the o-ring 93a can be adjusted to the proper position using the rod 94a and nut 94b.

In addition, an inlet guide roller 95 is provided at the front upper end of the fixed plate 91 in the direction of the feed and discharge zones B, as shown in FIG. This allows the fixed plate to smoothly close the inlet of the connecting duct 26 while moving the connecting duct 26.

As a result, the formation of a fully communicating annular duct without partitions in the movable air channel 25 allows you to provide an effect similar to the effect of embodiment 1, even embodiment 3.

In embodiments 1-3, a heat recovery zone D is provided. However, there is no need to say that the invention is also applicable in the case when the zone D of regeneration of waste heat is not provided.

In addition, in embodiments 1-3, the stationary annular duct 31 is positioned so that it closes the movable annular duct 21 from the upper side. However, the invention is also applicable when the movable annular box 21 closes the stationary annular box 31 from the upper side, as described in reference 1 to the patent.

In addition, the prevention of deterioration of the water seal function by means of a bracket structure in which the position of the side wheel 5b can be adjusted by means of a screw jack is extremely effective in Embodiments 1-3 in the absence of a seal function of a part of the labyrinth seal. A design with a bracket in which the position of the side wheel 5b can be adjusted can be used for a sinter ore cooling plant comprising a water seal mechanism (for example, patent references 1-3), different from the water seal mechanism in embodiments 1-3.

The above description provides an example of a sinter ore chiller. However, the invention can also be used as a cooling unit for other granular / lump material, for example pellets and hot clinker.

Preferred embodiments of the invention are described above with reference to the attached drawings. However, the invention is not limited to embodiments. Of course, that a person skilled in the art will understand many modifications and variations within the framework of the technical idea described in the claims. Of course, modifications and variations are also included in the technical scope of the invention.

Claims (10)

1. The device for supplying air to the trolley for hot granular / lump material, containing a movable annular box located along the trajectory of the trolley, consisting of many trolleys arranged to move along the annular trajectory, and connected to each of the trolleys using a connecting duct, stationary an annular box located along the trajectory of the trolley and inserted into the movable annular box using a device with a water seal with the possibility of free movement, a movable annular box and a stationary box forming an annular air channel, a device with a water seal, containing an annular chamber of a water seal located along the path of movement of the trolley, and a plate of a water seal having a lower end portion immersed in the sealing water in the annular chamber of the water seal and an atmospheric zone for stopping air leakage in the trolley provided in a predetermined position of the trajectory of the trolley, characterized in that the upper space of the annular measures the water sealing on the side of the annular air channel communicates with the annular air passage on the side of the movable circular duct side, the circular air path on the movable circular duct is connected in the circumferential direction and closing mechanism connecting the air channel for closing the connection air duct is provided in the atmospheric zone. 2. The device according to claim 1, characterized in that in the annular air channel there is no partition for its separation, while the annular air channel on the side of the movable annular duct is designed for connection in the circumferential direction. 3. The device according to claim 1, characterized in that a partition is provided in the annular air channel having a cutout in the upper part for its separation, while the annular air channel on the side of the movable annular duct is intended to be connected in the circumferential direction. 4. The device according to any one of claims 1 to 3, characterized in that the closing mechanism of the connecting air channel is located so that the connecting air channel is equipped with an air damper, while the air damper closes in the atmospheric zone and opens in areas that are not atmospheric zone. 5. The device according to any one of claims 1 to 3, characterized in that the closing mechanism of the connecting air channel is located so that the stationary annular duct in the atmospheric zone is provided with a closing sheet of the connecting air channel, and the inlet of the connecting air channel is closed using the closing sheet. 6. The device according to any one of claims 1 to 3, characterized in that it contains a sheet for protection against penetration of foreign material into the annular chamber of the water seal from the annular air channel, while the sheet for protection against penetration of foreign material is located in the upper part on the side annular air channel. 7. The device according to any one of claims 1 to 3, characterized in that it comprises means for collecting foreign material in the annular chamber of the water seal. 8. Installation for cooling hot granular / lump material containing an air supply device, characterized in that the air supply device is made according to any one of claims 1 to 7. 9. Installation according to claim 8, characterized in that the trolley comprises an annular side wall located inside and outside, and a plurality of trolley trolleys for loading hot granular / lump material in the lower part of the annular side wall, and the air supplied to the trolley is designed to cooling the hot granular / lump material loaded onto the tray trolley. 10. Installation according to claim 8 or 9, characterized in that it comprises a side rail for guiding and maintaining the movement of the trolley and a side wheel, configured to adjust the position of the side wheel even during the movement of the trolley.

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