CN112626299A - Cooling method of distributing device - Google Patents
Cooling method of distributing device Download PDFInfo
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- CN112626299A CN112626299A CN202011546822.1A CN202011546822A CN112626299A CN 112626299 A CN112626299 A CN 112626299A CN 202011546822 A CN202011546822 A CN 202011546822A CN 112626299 A CN112626299 A CN 112626299A
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- cooling water
- annular groove
- groove body
- cooling
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/18—Bell-and-hopper arrangements
- C21B7/20—Bell-and-hopper arrangements with appliances for distributing the burden
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/10—Cooling; Devices therefor
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- Organic Chemistry (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The application discloses a cooling method of a distributor, which comprises the following steps: introducing nitrogen and cooling water into the annular groove body from the top of the box body; introducing nitrogen into the annular groove body from two sides of the fixed separator; cooling water passes through the fixed separator, enters the annular groove body and flows back to the annular groove body through the cooling water pipe; when the liquid level of the cooling water is higher than the water outlet on the fixed separator, the pressure of the introduced nitrogen and the cooling water is adjusted; the cooling water and the nitrogen on the two sides of the fixed separator form a dynamic balance state; the cooling water is discharged from the top of the box body after passing through the fixed separator; when circulating in the annular groove body and the cooling water pipe, the cooling liquid exchanges heat with the rotating cylinder to cool the rotating cylinder, and the nitrogen in the annular groove body and the blast furnace gas in the rotating cylinder are sealed through the rotating sealing ring. The problem of distributing device leakproofness poor and cooling effect poor among the prior art is solved in this application, can provide the cooling water of great flow, and then has promoted the cooling effect, has guaranteed to smelt the effect.
Description
Technical Field
The application belongs to the technical field of distributing devices, and particularly relates to a cooling method of a distributing device.
Background
As shown in figure 1, the distributor is arranged on the upper part of a blast furnace top steel ring and is a core component of the blast furnace top. The distributor includes a tank 101, and a rotating cylinder 102, an upper water tank 103, and a lower water tank 104 provided in the tank 101. The box body 101 and the lower water tank 104 are connected into a whole to form a fixed body, and the lower end of the fixed body is arranged on a steel ring of the furnace top. The rotating cylinder 102 is integrally connected to the water supply tank 103 to form a rotating body. The rotator is connected with the distribution chute through a gear train, and the gear train drives the distribution chute to rotate, so as to distribute materials to the blast furnace. A labyrinth seal structure is adopted between the rotating cylinder 102 and the box body 101 so as to form relative movement, and the labyrinth seal structure is used for preventing the distributor from entering ash.
In order to ensure the stable operation of the gear train, the gear train needs to be cooled, so that the temperature of the distributing device is kept within 55 ℃. The cooling water flows into the upper water tank 103 through a water pipe arranged at the upper end of the box body 101, flows into the lower water tank 104 through a water pipe attached to the straight section of the rotating cylinder 102 and a water pipe of the lower plane, and then flows out of the box body 101 through the lower water tank 104, so that the interior of the distributing device is cooled, and the normal operation of a gear train in the distributing device is ensured.
The blast furnace has certain pressure, the circumferential weld of the labyrinth seal structure is swept by continuously injecting nitrogen into the box body 101, and the pressure of the nitrogen in the distributing device is slightly greater than the pressure of blast furnace gas, so that the blast furnace gas can be prevented from carrying dust to enter the box body 1 from the labyrinth seal structure arranged between the rotating body and the fixed body. However, the prior distributing device has the following problems in operation:
1. the requirements on the cooling water pressure and the stability and the proportion degree of the purging nitrogen pressure are high, the structure in the distributing device box body is complex, and the pressure of the top of the blast furnace can fluctuate sometimes, so that the distributing device can purge the water surface of the upper water tank and the lower water tank when nitrogen is input, the water surface of the upper water tank and the lower water tank is turned over, the turned water can enter the blast furnace, and the smelting effect is influenced.
2. The adaptability of the distributing device to the pressure fluctuation of the top of the blast furnace is poor, so that the nitrogen pressure is difficult to be matched with the pressure of the top of the blast furnace in real time, and the ash is fed into the distributing device, thereby influencing the smelting effect.
3. The distributing device has high requirement on the temperature of the top of the blast furnace, and the cooling water quantity is not easy to match, so that the problem that the inside of the distributing device cannot be cooled in time occurs, and the normal operation of a gear train inside the distributing device is influenced.
Disclosure of Invention
The embodiment of the application provides a cooling method for a distributor, so that the problems of poor sealing performance and poor cooling effect of the distributor in the prior art are solved, and the smelting effect is further ensured.
The embodiment of the invention provides a cooling method of a distributor, which comprises the following steps: introducing nitrogen and cooling water into an annular groove body arranged on the outer side of the upper end of the rotating cylinder from the top of a box body of the distributing device; the upper end of the inner side wall and the upper end of the outer side wall of the annular groove body are sealed with the top wall in the box body through rotary sealing rings;
after the nitrogen passes through a fixed separator arranged on the top wall in the box body, the nitrogen is introduced into the annular groove body in two ways from a gas outlet on the inner side wall and a gas outlet on the outer side wall of the fixed separator;
the cooling water passes through the fixed separator and enters the annular groove body, and the cooling water in the annular groove body flows back to the annular groove body through the cooling water pipe by means of gravity;
when the liquid level of the cooling water in the annular groove body is gradually increased and is higher than the two water outlets arranged on the inner side wall and the outer side wall of the fixed separator, the pressure of the introduced nitrogen and the pressure of the introduced cooling water are adjusted to keep the liquid level height of the cooling water on the two sides of the fixed separator within a set range, the cooling water on the two sides of the fixed separator and the nitrogen above the cooling water form a dynamic balance state, and the cooling water is forced to enter from the water outlets and pass through the fixed separator to be discharged from the top of the box body; the two water outlets on the inner side wall and the outer side wall of the fixed separator are lower than the two air outlets of the nitrogen in the vertical direction;
when circulating in the annular groove body and the cooling water pipe, the cooling liquid exchanges heat with the rotating cylinder to cool the rotating cylinder, wherein the cooling water pipe is laid outside the rotating cylinder;
the nitrogen in the annular groove body and the blast furnace gas in the rotary cylinder are sealed through a rotary sealing ring.
Furthermore, a rotary separator is arranged on the outer side of the upper end of the rotary cylinder, the rotary separator is a ring body with an L-shaped section, and the rotary separator and the upper end of the rotary cylinder form the annular groove body;
the upper end of the rotary separator and the upper end of the rotary cylinder are both provided with the rotary sealing ring, and the rotary separator and the rotary cylinder rotate relative to the box body.
Further, an annular boss is arranged at the lower end in the rotary separator, and a V-shaped ring groove is arranged at the upper end of the annular boss;
the lower end of the fixed separator is matched with the upper end structure of the annular boss, and an annular channel with a V-shaped section is formed between the lower end of the fixed separator and the upper end of the annular boss.
Further, the method also comprises the following steps: cooling water passes through the fixed separator and enters the annular groove body, the cooling water flows into the V-shaped ring groove of the annular boss from the lower end of the fixed separator, the cooling water sequentially passes through the annular boss and the bottom of the annular groove body from the bottom of the V-shaped ring groove and enters one end of the cooling water pipe, the cooling water flows out from the other end of the cooling water pipe, and flows back into the annular groove body from the side wall of the annular boss after sequentially passing through the bottom of the annular groove body and the annular boss;
after the liquid level of the cooling water in the annular tank body is gradually raised and is higher than a water outlet at the lower end of the fixed separator, the cooling water flows in three paths; one path of cooling water flows into the other side in the annular groove body from the side wall of the annular boss after sequentially passing through the annular boss, the bottom of the annular groove body, the cooling water pipe, the bottom of the annular groove body and the annular boss; and the other two paths of cooling water respectively flow into the annular groove body from two sides of the annular channel.
Further, the method also comprises the following steps: and cooling water is introduced into an annular water tank arranged at the lower end in the tank body, and after heat exchange is carried out between the cooling water and a bottom plate of the tank body, the cooling water is discharged out of the tank body from a water outlet of the annular water tank.
Further, the method also comprises the following steps: and nitrogen is introduced into the box body from the side wall of the box body, and the pressure of the nitrogen is adjusted, so that the blast furnace gas and the nitrogen form a pressure balance state at the labyrinth seal structure between the rotary cylinder and the annular water tank, and the sealing performance of the labyrinth seal structure is ensured.
Further, the air outlets of the inner side wall and the outer side wall of the fixed separator are positioned at the same height.
Furthermore, the nitrogen introduced into the annular groove body from the top of the box body is divided into two paths, and the two paths of nitrogen respectively enter two sides in the annular groove body.
One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:
the embodiment of the invention provides a cooling method of a distributing device, wherein the air pressure of nitrogen at two sides of a fixed separator and the water pressure of cooling water are in a balanced state, so that the cooling water at two sides of the fixed separator can form a relatively stable liquid level, and the area of the liquid level of the nitrogen in contact with the cooling water is smaller, so that the nitrogen can be kept in a dynamic balanced state with the cooling water by introducing less nitrogen, and further, the invention can provide cooling water with larger flow under the condition of the same nitrogen amount, thereby improving the cooling effect; the invention needs relatively less nitrogen, is easy to form a dynamic balance state with blast furnace gas, can ensure the sealing performance of the joint of the rotating body and the fixed body, ensures the normal operation of the distributing device, avoids the problem that water enters the blast furnace due to the water surface turning of the upper water tank and the lower water tank in the prior art, and simultaneously can avoid the ash entering of the distributing device, thereby ensuring the smelting effect.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural view of a water-cooled distributor in the prior art;
FIG. 2 is a schematic structural view of a water-cooled distributor used in the method of the present invention;
FIG. 3 is a view A-A of FIG. 2;
FIG. 4 is an enlarged view at C of FIG. 3;
FIG. 5 is an enlarged view of FIG. 3 at D;
FIG. 6 is a view B-B of FIG. 2;
FIG. 7 is an enlarged view at E of FIG. 6;
fig. 8 is a flow chart of the cooling method of the distributor of the present invention.
Reference numerals: 101-a box body; 102-a rotating cylinder; 103-feeding water tank; 104-a water discharging tank;
1-a box body; 2-rotating the cylinder; 3-an annular groove body; 4-rotating the sealing ring; 5-a fixed separator; 51-air outlet; 52-water outlet; 53-annular channel; 6-a cooling water pipe; 7-a rotating separator; 71-an annular boss; 8-an annular water tank; 9-labyrinth seal structure, 10-upper air inlet channel; 11-a water inlet channel; 12-a water outlet channel; 13-lower intake passage.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 2 to 8, the cooling method of the distributor provided by the embodiment of the present invention includes the following steps: introducing nitrogen and cooling water into an annular groove body 3 arranged on the outer side of the upper end of a rotating cylinder 2 from the top of a box body 1 of the distributing device; the upper end of the inner side wall and the upper end of the outer side wall of the annular groove body 3 are sealed with the top wall inside the box body 1 through rotary sealing rings 4;
in this embodiment, as shown in fig. 3, a rotary separator 7 is disposed outside the upper end of the rotary cylinder 2, the rotary separator 7 is a ring body with an L-shaped cross section, and the rotary separator 7 and the upper end of the rotary cylinder 2 form the annular groove body 3.
As shown in fig. 4, the upper end of the rotating separator 7 and the upper end of the rotating cylinder 2 are provided with the rotating seal ring 4. The rotary sealing ring 4 has good sealing effect, and when the distributor works, the pressure of nitrogen input is greater than the pressure of blast furnace gas in the rotary cylinder 2, so that the sealing performance of the position can be further ensured.
In this embodiment, an annular boss 71 is disposed at the lower end of the inside of the rotating separator 7, and a V-shaped ring groove is disposed at the upper end of the annular boss 71.
As shown in fig. 4, the lower end of the fixed separator 5 is structurally matched with the upper end of the annular boss 71, and the lower end of the fixed separator 5 and the upper end of the annular boss 71 form an annular channel 53 with a V-shaped section.
As shown in fig. 6 and 7, after the nitrogen gas passes through the fixed separator 5 arranged on the top wall inside the tank 1, the nitrogen gas is introduced into the annular tank 3 in two ways from the gas outlet 51 on the inner side wall and the gas outlet 51 on the outer side wall of the fixed separator 5; the upper end inside the annular groove body 3 is divided into two spaces by the fixed separator 5, so that two air outlets are respectively arranged on the inner side wall and the outer side wall of the fixed separator 5, and the liquid level of the cooling water on two sides of the annular groove body 3 can be guaranteed to be in a balanced state with nitrogen.
The fixed separator 5 and the rotary separator 7 are combined to form a water-gas separator, the water-gas separator realizes the balance of cooling water and nitrogen, the nitrogen assists the cooling water to take away the high temperature in the box body 1, and meanwhile, the nitrogen can keep a balanced state with the pressure of blast furnace gas, so that the sealing function is realized.
In this embodiment, as shown in fig. 7, the air outlet 51 of the inner sidewall and the air outlet 51 of the outer sidewall of the fixed separator 5 are located at the same height, and the same height enables the liquid level of the cooling water at both sides of the fixed separator 5 to be more stable, thereby improving the reliability of the method.
In this embodiment, as shown in fig. 6 and 7, the nitrogen introduced into the annular tank 3 from the top of the tank 1 is divided into two paths; two upper air inlet channels 10 are arranged at the top of the box body 1 and on two sides of the fixed separator 5, and the nitrogen enters two sides of the annular groove body 3 through the two upper air inlet channels 10 respectively.
Each path of nitrogen is introduced into the annular groove body 3 from the gas outlet 51 on the inner side wall and the gas outlet 51 on the outer side wall of the fixed separator 5 in two paths.
As shown in fig. 4 and 5, the cooling water passes through the fixed separator 5 and enters the annular tank body 3, and the cooling water in the annular tank body 3 flows back to the annular tank body 3 through the cooling water pipe 6 by means of gravity;
in this embodiment, the specific steps of the cooling water flowing back into the annular groove body 3 through the cooling water pipe 6 further include: a water inlet channel 11 is arranged at the top of the box body 1 and one side of the fixed separator 5, and a water outlet channel 12 is arranged at the other side; cooling water passes through the fixed separator 5 and enters the annular groove body 3, namely the cooling water enters the annular groove body 3 through the water inlet channel 11, the cooling water flows into the V-shaped annular groove of the annular boss 71 from the lower end of the fixed separator 5, the cooling water sequentially passes through the annular boss 71 and the bottom of the annular groove body 3 from the bottom of the V-shaped annular groove and enters one end of the cooling water pipe 6, the cooling water flows out from the other end of the cooling water pipe 6 and sequentially passes through the bottom of the annular groove body 3 and the annular boss 71 and then flows back into the annular groove body 3 from the side wall of the annular boss 71;
after the liquid level of the cooling water in the annular tank body 3 is gradually increased and is higher than the water outlet 52 at the lower end of the fixed separator 5, the cooling water flows in three paths; one path of cooling water sequentially passes through the annular boss 71, the bottom of the annular groove body 3, the cooling water pipe 6, the bottom of the annular groove body 3 and the annular boss 71 and then flows into the other side in the annular groove body 3 from the side wall of the annular boss 71; and the other two paths of cooling water respectively flow into the annular groove body 3 from two sides of the annular channel 53.
Through setting up annular boss 71 and the water delivery passageway on it, can guarantee that the cooling water is mobile state in condenser tube 6, avoided the cooling water in condenser tube 6 not mobile and lead to the problem that heat conduction efficiency reduces, and then promoted the cooling effect.
As shown in fig. 5 to 7, when the liquid level of the cooling water in the annular tank 3 gradually rises and the liquid level of the cooling water is higher than the two water outlets 52 arranged on the inner side wall and the outer side wall of the fixed separator 5, the pressure of the introduced nitrogen and the pressure of the introduced cooling water are adjusted to keep the liquid level heights of the cooling water on the two sides of the fixed separator 5 within a set range, that is, the liquid level height of the cooling water floats at a certain value, preferably, the floating range is 0-5 mm, the cooling water on the two sides of the fixed separator 5 and the nitrogen above the cooling water form a dynamic balance state, so that the cooling water is forced to enter from the water outlets 52 and is discharged from the top of the tank 1 through the fixed separator 5, that is, the cooling water is discharged from the tank 1 through the water outlet channel 12, and the water inlet of the water outlet channel 12 is the water. Wherein, the two water outlets 52 on the inner side wall and the outer side wall of the fixed separator 5 are lower than the two air outlets 51 of the nitrogen gas in the vertical direction; the upper surface areas of the liquid surfaces of the cooling water on both sides of the fixed separator 5 are preferably equal, and the pressure of the introduced nitrogen gas can be easily kept in a state of equilibrium with the cooling water on both sides of the fixed separator 5.
The cooling water in the annular groove body 3 is discharged out of the box body 1 from a water outlet 52 of the fixed separator 5; the pressure of the nitrogen gas and the water pressure of the cooling water on both sides of the fixed separator 5 are in a balanced state, so that the cooling water on both sides of the fixed separator 5 forms a relatively stable liquid level.
When circulating in the annular groove body 3 and the cooling water pipe 6, the cooling liquid exchanges heat with the rotating cylinder 2 to cool the rotating cylinder 2, wherein the cooling water pipe 6 is laid outside the rotating cylinder 2, namely the cooling water pipe 6 is attached to the straight section and the lower plane of the rotating cylinder 2.
The nitrogen in the annular groove body 3 and the blast furnace gas in the rotary cylinder 2 are sealed by a rotary sealing ring 4.
When nitrogen and cooling water are continuously introduced into the annular groove body 3 according to the set pressure, the circulation mode of the cooling water is as follows:
when the cooling water flows out from the lower end of the fixed separator 5, the cooling water flows in three paths, one path of cooling water sequentially passes through the annular boss 71, the bottom of the annular groove body 3, the cooling water pipe 6, the bottom of the annular groove body 3 and the annular boss 71 and then flows into the other side of the annular groove body 3 from the side wall of the annular boss 71, and the other two paths of cooling water respectively flow into the annular groove body 3 from two sides of the V-shaped annular groove; the water outlet of the side wall of the annular boss 71 is lower than the bottom of the V-shaped annular groove in the vertical direction, so that cooling water can flow in three ways from the annular channel 53 more smoothly, the cooling water is in a flowing state in the cooling water pipe 6, and the heat exchange efficiency is further improved.
The pressure of the nitrogen gas on both sides of the fixed separator 32 and the water pressure of the cooling water are in a balanced state, so that the cooling water on both sides of the fixed separator 32 can form a relatively stable liquid level. The liquid level area of the nitrogen in contact with the cooling water is smaller, so that the nitrogen can be kept in a dynamic balance state with the cooling water by introducing less nitrogen, and the invention can provide cooling water with larger flow, thereby improving the cooling effect.
The step is a cooling method of the rotary cylinder 2 of the distributing device, and the cooling method takes away the heat transferred from the high temperature of the blast furnace top to the straight section and the lower plane of the rotary cylinder 2.
In this embodiment, as shown in fig. 6, the step of cooling the bottom plate of the box 1 includes: cooling water is introduced into the annular water tank 8 arranged at the lower end in the tank body 1, and after heat exchange is carried out between the cooling water and the bottom plate of the tank body 1, the cooling water is discharged out of the tank body 1 from a water outlet 52 of the annular water tank 8.
The step is a cooling method of the bottom plate of the box body 1, the cooling method takes away heat transferred to the bottom plate of the box body 1 from the high temperature of the blast furnace top, and the cooling method of the rotating cylinder 2 and the bottom plate of the box body 1 adopts an independent water cooling structure.
In this embodiment, the method further includes the following steps: nitrogen is introduced into the box body 1 from a lower gas inlet channel 13 on the side wall of the box body 1, and the pressure of the nitrogen is adjusted, so that the blast furnace gas and the nitrogen form a pressure balance state at the labyrinth seal structure 9 between the rotary cylinder 2 and the annular water tank 8, and the sealing performance at the labyrinth seal structure 9 is ensured.
The box body 1, the fixed separator 5 and the annular water tank 8 form a fixed body; the rotating separator 7 and the rotating cylinder 2 form a rotating body which is connected with the distributing chute; when the distributing device works, the rotating body rotates relative to the fixed body.
The cooling method can cool the interior of the box body 1 when the rotating body rotates relative to the fixed body, and can ensure the sealing property of the joint of the rotating body and the fixed body, thereby ensuring the normal operation of the distributing device.
The invention adopts an independent water cooling structure, needs relatively less nitrogen, is easy to form a dynamic balance state with blast furnace gas, can further ensure the sealing property, avoids the condition that the water surfaces of an upper water tank and a lower water tank turn over in the prior art, and can also avoid the problems of ash feeding of a distributor or water entering into a blast furnace, thereby ensuring the smelting effect.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, changes and equivalent structural changes made to the above embodiment according to the technical spirit of the present invention still fall within the protection scope of the technical solution of the present invention.
Claims (8)
1. A method of cooling a distributor, comprising the steps of: introducing nitrogen and cooling water into an annular groove body (3) arranged on the outer side of the upper end of a rotating cylinder (2) from the top of a box body (1) of the distributing device; the upper end of the inner side wall and the upper end of the outer side wall of the annular groove body (3) are sealed with the top wall inside the box body (1) through rotary sealing rings (4);
after the nitrogen passes through a fixed separator (5) arranged on the top wall in the box body (1), the nitrogen is introduced into the annular groove body (3) in two ways from a gas outlet (51) on the inner side wall and a gas outlet (51) on the outer side wall of the fixed separator (5);
the cooling water passes through the fixed separator (5) and enters the annular groove body (3), and the cooling water in the annular groove body (3) flows back to the annular groove body (3) through the cooling water pipe (6) by means of gravity;
when the liquid level of the cooling water in the annular groove body (3) is gradually increased and is higher than two water outlets (52) arranged on the inner side wall and the outer side wall of the fixed separator (5), the pressure of the introduced nitrogen and the pressure of the introduced cooling water are adjusted to keep the liquid level height of the cooling water on the two sides of the fixed separator (5) within a set range, and the cooling water on the two sides of the fixed separator (5) and the nitrogen above the cooling water form a dynamic balance state, so that the cooling water is forced to enter from the water outlets (52) and passes through the fixed separator (5) to be discharged from the top of the box body (1); wherein, two water outlets (52) on the inner side wall and the outer side wall of the fixed separator (5) are lower than two air outlets (51) of the nitrogen in the vertical direction;
when circulating in the annular groove body (3) and the cooling water pipe (6), the cooling liquid exchanges heat with the rotating cylinder (2) to cool the rotating cylinder (2), wherein the cooling water pipe (6) is laid outside the rotating cylinder (2);
the nitrogen in the annular groove body (3) and the blast furnace gas in the rotary cylinder (2) are sealed through a rotary sealing ring (4).
2. A method of cooling a distributor as claimed in claim 1 wherein: a rotary separator (7) is arranged on the outer side of the upper end of the rotary cylinder (2), the rotary separator (7) is a ring body with an L-shaped section, and the rotary separator (7) and the upper end of the rotary cylinder (2) form the annular groove body (3);
the upper end of the rotary separator (7) and the upper end of the rotary cylinder (2) are both provided with the rotary sealing ring (4), and the rotary separator (7) and the rotary cylinder (2) rotate relative to the box body (1).
3. A cooling method of a distributor according to claim 2, characterized in that the lower end inside the rotating separator (7) is provided with an annular boss (71), and the upper end of the annular boss (71) is provided with a V-shaped ring groove;
the lower end of the fixed separator (5) is matched with the upper end structure of the annular boss (71), and the lower end of the fixed separator (5) and the upper end of the annular boss (71) form an annular channel (53) with a V-shaped section.
4. A method of cooling a distributor as claimed in claim 3 further comprising the steps of: cooling water passes through the fixed separator (5) and enters the annular groove body (3), the cooling water flows into the V-shaped ring groove of the annular boss (71) from the lower end of the fixed separator (5), the cooling water sequentially passes through the annular boss (71) and the bottom of the annular groove body (3) from the bottom of the V-shaped ring groove and enters one end of the cooling water pipe (6), the cooling water flows out from the other end of the cooling water pipe (6), sequentially passes through the bottom of the annular groove body (3) and the annular boss (71), and then flows back into the annular groove body (3) from the side wall of the annular boss (71);
the liquid level of the cooling water in the annular groove body (3) is gradually increased, and after the liquid level of the cooling water is higher than a water outlet (52) at the lower end of the fixed separator (5), the cooling water flows in three paths; one path of cooling water flows into the other side in the annular groove body (3) from the side wall of the annular boss (71) after sequentially passing through the annular boss (71), the bottom of the annular groove body (3), the cooling water pipe (6), the bottom of the annular groove body (3) and the annular boss (71); and the other two paths of cooling water respectively flow into the annular groove body (3) from two sides of the annular channel (53).
5. The method of cooling a distributor according to claim 1, further comprising the steps of: cooling water is introduced into an annular water tank (8) arranged at the inner lower end of the tank body (1), and after heat exchange is carried out between the cooling water and a bottom plate of the tank body (1), the cooling water is discharged out of the tank body (1) from a water outlet (52) of the annular water tank (8).
6. The method of cooling a distributor according to claim 5, wherein: further comprising the steps of: nitrogen is led into the box body (1) from the side wall of the box body (1), and the pressure of the nitrogen is adjusted, so that the blast furnace gas and the nitrogen form a pressure balance state at the labyrinth seal structure (9) between the rotary cylinder (2) and the annular water tank (8), and the sealing performance at the labyrinth seal structure (9) is ensured.
7. A method of cooling a distributor as claimed in claim 1 wherein: the air outlets (51) of the inner side wall and the outer side wall of the fixed separator (5) are positioned at the same height.
8. A method of cooling a distributor as claimed in claim 1 wherein: the nitrogen introduced into the annular groove body (3) from the top of the box body (1) is divided into two paths, and the two paths of nitrogen respectively enter two sides in the annular groove body (3).
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| CN202011546822.1A CN112626299B (en) | 2020-12-24 | 2020-12-24 | Cooling method of distributing device |
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| CN202011546822.1A CN112626299B (en) | 2020-12-24 | 2020-12-24 | Cooling method of distributing device |
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| CN112626299B CN112626299B (en) | 2022-04-01 |
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