JP6357678B2 - Gas blower for coke dry fire extinguishing equipment - Google Patents

Description

  The present invention relates to a gas blowing device for a coke dry fire extinguishing facility.

  Coke thrown into the blast furnace is produced by dry distillation (steaming) of coal in the coke oven. Coke after dry distillation is kept at a high temperature (around 1000 ° C), and as it is, it cannot be transported by a belt conveyor or stored in the atmosphere, and cannot be charged into a blast furnace. Then, the temperature is lowered to a level at which charging is possible.

Previously, wet fire extinguishing systems (injecting water into red-hot coke and extinguishing the temperature to reduce the temperature) were the mainstream, but in this system, white smoke (steam) is generated due to fire extinguishing and the coke powder is surrounded by As a result, the sensible heat of red-hot coke was wasted.
Currently, the dry fire extinguishing method (flowing inert gas and extinguishing the temperature with this cooling gas flow to lower the temperature) has become the mainstream. Red hot coke extruded from the coke oven is loaded into the bucket and the cooling tower of the coke fire extinguishing equipment It is charged from the top.

In the coke dry fire extinguishing equipment, lowering the coke charged to the cooling tower at a uniform speed is extremely important for uniformly cooling the coke and achieving stable operation of the coke dry fire extinguishing equipment.
In the following Patent Document 1, a plurality of thermometers for measuring the temperature of the furnace wall part are arranged in the furnace wall part at the lower part of the cooling tower, and the amount of insertion into the cooling tower at the funnel part at the lower part of the cooling tower. Disclosed is a configuration that equalizes the coke velocity distribution by arranging multiple needle bars that can be adjusted and adjusting the amount of needle bar insertion based on the thermometer measurement results to prevent coke descent. ing.

JP 2011-219638 A

  By the way, in the cooling tower, the middle portion of the cooling tower on the radius tends to have a higher coke descending speed than the core and the furnace wall. In the portion where the descending speed of the coke is large, even if the wind is flowing uniformly, the air volume with respect to the unit coke is too small to be cooled and the temperature becomes high. The above-mentioned prior art measures the temperature of the wall near the wall that becomes the temperature of the wind in the cooling tower and the temperature of the cut coke, and adjusts the speed of the coke near the wall in the cooling tower. For this reason, in the above prior art, the temperature distribution of coke on the radius of the cooling tower cannot be correctly grasped, and in the intermediate portion on the radius of the cooling tower where the descending speed is originally large and the core portion where the descending speed is small. Since the descent speed of coke could not be adjusted, there was a problem with the stability of the operation of the coke dry fire extinguishing equipment.

  The present invention has been made in view of the above-mentioned problems, and makes the coke temperature distribution uniform on the radius of the cooling tower and enables more stable operation in the coke dry fire extinguishing equipment. The purpose is to provide a device.

In order to solve the above-mentioned problem, the present invention is a gas blowing device of a coke dry fire extinguishing equipment that blows gas from a lower part of a cooling tower in which coke is charged in an upper part, from the central part of the lower part of the cooling tower. A first gas blowing section for blowing the gas, a second gas blowing section for blowing the gas from a lower peripheral portion of the cooling tower, a first temperature measuring portion for measuring a temperature in the central portion, and the peripheral portion Based on the measurement result of the 2nd temperature measurement part which measures temperature, the 1st temperature measurement part, and the 2nd temperature measurement part, the amount of the gas blown from the 1st gas blowing part, and the 2nd gas blowing And a gas air volume control unit that controls the ratio of the air volume of the gas blown from the unit.
By adopting this configuration, in the present invention, in the lower part of the cooling tower, the first gas blowing part is provided in the central part thereof, and the second gas blowing part is provided in the peripheral part thereof, so that the radius of the cooling tower is increased. The amount of gas to be blown can be adjusted. In the present invention, the temperature distribution of the coke is grasped on the radius of the cooling tower by providing the first temperature measuring part at the center of the lower part of the cooling tower and providing the second temperature measuring part at the peripheral part. Make it possible. In the present invention, a gas air volume control unit is provided, and the first gas blowing unit and the second gas blowing unit are grasped while the temperature distribution of the coke on the radius of the cooling tower is grasped by the first temperature measuring unit and the second temperature measuring unit. The coke temperature on the radius of the cooling tower is made uniform by controlling the ratio of the amount of gas blown from the section. For this reason, according to the present invention, it is possible to perform more stable operation in the coke dry fire extinguishing equipment.

Further, in the present invention, the first gas blowing section is provided in an umbrella blast head provided in a central portion of the lower part of the cooling tower, and the first temperature measuring section is provided on the blast head. The configuration of being provided in the umbrella is adopted.
By adopting this configuration, in the present invention, it is possible to measure the temperature of the coke in the central part by providing the first temperature measuring part in the umbrella part of the blast head provided in the central part of the lower part of the cooling tower. . The umbrella part of the blast head is a part on which coke is placed, and the temperature of the coke in the central part can be accurately measured by providing the first temperature measuring part in the umbrella part.

Further, in the present invention, the second gas blowing section is provided between an upper funnel and a lower funnel provided in a lower peripheral portion of the cooling tower, and the second temperature measuring section is Adopted a configuration that is provided in the upper funnel.
By adopting this configuration, in the present invention, the coke temperature in the peripheral part can be measured by providing the second temperature measuring part in the upper funnel provided in the lower peripheral part of the cooling tower. The upper funnel is closer to the wall of the cooling tower than the lower funnel, and is the part on which coke is placed. By providing a second temperature measurement unit on the upper funnel, the temperature of the coke in the peripheral part can be accurately measured. it can.

Further, in the present invention, a plurality of the first temperature measurement units are provided at intervals in the central portion, and the second temperature measurement unit is connected to the first temperature measurement unit in the peripheral portion. A configuration is adopted in which the same number and a plurality of arrangements corresponding to the arrangement of the first temperature measurement units are provided.
By adopting this configuration, in the present invention, a plurality of first temperature measurement units are provided in the central portion of the lower part of the cooling tower, and a plurality of second temperature measurement units are provided in the peripheral part of the lower part of the cooling tower, thereby cooling The temperature distribution of coke on the tower radius can be accurately grasped. Further, in the present invention, the first temperature measurement unit is provided on the radiation passing through the center of the cooling tower by providing the same number of second temperature measurement units as the first temperature measurement units and corresponding to the arrangement of the first temperature measurement units. And a second temperature measurement unit, for example, a bridging phenomenon in which coke powder straddles between the blast head and the upper funnel can be detected.

Further, in the present invention, a plurality of the first temperature measurement units are provided at intervals in the central portion, and the second temperature measurement unit is provided in the peripheral portion from the first temperature measurement unit. A configuration is adopted in which a large number and a plurality are provided at intervals corresponding to the intervals of the first temperature measurement units.
By adopting this configuration, in the present invention, a plurality of first temperature measurement units are provided in the central portion of the lower part of the cooling tower, and a plurality of second temperature measurement units are provided in the peripheral part of the lower part of the cooling tower, thereby cooling The temperature distribution of coke on the tower radius can be accurately grasped. Moreover, in this invention, the 2nd temperature measurement part is provided in the space | interval corresponding to the space | interval of a 1st temperature measurement part more than a 1st temperature measurement part, and is the same space | interval as a center part in a peripheral part larger than a center part. Thus, the temperature distribution of the coke can be grasped, and the number of first temperature measuring units installed in the central portion can be relatively reduced.

In the present invention, the gas air volume control unit obtains an average value of the measurement results of the plurality of first temperature measurement units and an average value of the measurement results of the plurality of second temperature measurement units. In comparison, a configuration is adopted in which the ratio of the air volume of the gas blown from the first gas blowing section and the gas volume of the gas blown from the second gas blowing section is controlled.
By adopting this configuration, in the present invention, the average value of the measurement results of the plurality of first temperature measurement units is compared with the average value of the measurement results of the plurality of second temperature measurement units. In order to control the ratio of the gas volume blown from the first gas blowing section and the gas volume blown from the second gas blowing section, the temperature of the coke on the radius of the cooling tower without being confused by some measurement results Can be made uniform.

  ADVANTAGE OF THE INVENTION According to this invention, the coke temperature distribution on the radius of a cooling tower is equalize | homogenized, and the gas blowing apparatus of the coke dry fire extinguishing equipment which enables more stable operation in coke dry fire extinguishing equipment is obtained.

It is sectional drawing which shows the structure of the gas blowing apparatus of the coke dry-type fire extinguishing equipment in embodiment of this invention. It is a principal part expanded sectional view which shows the structure of the periphery part of the cooling tower in embodiment of this invention. It is a top view which shows arrangement | positioning of the 1st temperature measurement part and 2nd temperature measurement part in embodiment of this invention. It is a control block diagram which shows the control structure of the gas blowing apparatus of the coke dry fire extinguishing equipment in embodiment of this invention. It is a figure for demonstrating the relationship between the descent | fall speed | rate of coke, and temperature. It is a top view which shows arrangement | positioning of the 1st temperature measurement part and 2nd temperature measurement part in another one Embodiment of this invention.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a cross-sectional view showing a configuration of a gas blowing device 1 of a coke dry fire extinguishing facility in an embodiment of the present invention. FIG. 2 is an enlarged cross-sectional view of the main part showing the configuration of the peripheral part 3b2 of the cooling tower 3 in the embodiment of the present invention. FIG. 3 is a plan view showing the arrangement of the first temperature measurement unit 31 and the second temperature measurement unit 32 in the embodiment of the present invention. FIG. 4 is a control block diagram showing a control configuration of the gas blowing device 1 of the coke dry fire extinguishing equipment in the embodiment of the present invention.

  As shown in FIG. 1, a gas blowing device 1 of a coke dry fire extinguishing facility is provided in a cooling tower 3. The upper portion of the cooling tower 3 is a preliminary chamber 3A (pre-chamber, storage zone), and the lower portion is a cooling chamber 3B (cooling zone). In addition, the cooling chamber 3B is a region up to the upper end of the small flue 5 (gas suction zone), and the upper portion is a spare chamber 3A. The gas blowing device 1 blows gas from the lower portion 3b (lower portion of the cooling tower) of the cooling chamber 3B into which the coke 2 is charged via the preliminary chamber 3A, thereby cooling (extinguishing) the coke 2. In the present embodiment, an inert gas is blown as a gas for cooling the coke 2.

  The cooling tower 3 has a coke outlet 4 for cutting out the coke 2 extinguished by the blowing of gas from the lower part 3b of the cooling chamber 3B. In the present embodiment, the coke 2 cut out from the coke outlet 4 is conveyed to a blast furnace or the like by a conveyor (not shown). In addition, a small flue 5 for exhausting the gas blown from the lower part 3b is provided in the upper part of the cooling chamber 3B. A plurality of small flues 5 are provided at intervals on the side wall of the substantially cylindrical cooling chamber 3B. In the present embodiment, the gas obtained by cooling the coke 2 is sent to a boiler (not shown) through the small flue 5 and heat exchange with the coke 2 is effectively used.

  The cooling chamber 3B is provided with a first gas blowing part 10 for blowing gas from the central part 3b1 of the lower part 3b and a second gas blowing part 20 for blowing gas from the peripheral part 3b2 of the lower part 3b. The 1st gas blowing part 10 is provided in the blast head 11 provided in center part 3b1 of the lower part 3b of the cooling chamber 3B. On the other hand, the 2nd gas blowing part 20 is provided between the upper funnel 21 and the lower funnel 22 provided in the peripheral part 3b2 of the lower part 3b of the cooling chamber 3B.

  The blast head 11 is supported by a distributor 12 provided across the coke outlet 4. The blast head 11 is formed in an umbrella shape, and has a head portion 13a and a skirt portion 13b (umbrella portion). The first gas blowing part 10 is provided between the head part 13a and the skirt part 13b and at the lower part of the skirt part 13b. In this embodiment, the gas sent from the distributor 12 to the blast head 11 is supplied to the cooling chamber 3B from the first gas blowing part 10 provided between the head part 13a and the skirt part 13b and below the skirt part 13b. Is blown into the central portion 3b1.

  The distributor 12 is connected to the annular duct 14. The annular duct 14 is annularly provided on the back side of the lower funnel 22. As shown in FIG. 3, the distributor 12 is provided with a first butterfly valve 15. The first butterfly valve 15 is provided so that the gas flow path of the distributor 12 can be opened and closed. The 1st butterfly valve 15 of this embodiment is provided in each of the both ends of the divider | distributor 12 by which both ends were supported like a beam.

  As shown in FIG. 1, the upper funnel 21 and the lower funnel 22 form the lower part 3b of the cooling chamber 3B in a conical shape (funnel shape). The upper funnel 21 is inclined such that its upper end has a diameter corresponding to the side wall of the cooling chamber 3B and its lower end has a smaller diameter than its upper end. The lower funnel 22 has an upper end having a larger diameter than the lower end of the upper funnel 21, and a lower end having a smaller diameter than the upper end, and is inclined so as to communicate with the coke outlet 4.

  The second gas blowing section 20 is provided in a gap where the lower end of the upper funnel 21 and the upper end of the lower funnel 22 overlap. The second gas blowing unit 20 communicates with a buffer unit 23 provided in an annular shape on the back side of the upper funnel 21. The buffer unit 23 is connected to the annular duct 14. In the present embodiment, the gas distributed from the annular duct 14 to the buffer portion 23 is annularly blown from the second gas blowing portion 20 between the upper funnel 21 and the lower funnel 22 into the peripheral portion 3b2 of the cooling chamber 3B. It has become.

  A second butterfly valve 24 is provided at a connection portion between the buffer portion 23 and the annular duct 14. The 2nd butterfly valve 24 is provided so that the gas flow path in the connection part can be opened and closed. The annular duct 14 and the buffer part 23 can be connected at a plurality of locations, and a plurality of second butterfly valves 24 are provided at intervals at the bottom of the annular buffer part 23 as shown in FIG. . For example, a total of six second butterfly valves 24 of this embodiment are provided every 60 ° in plan view.

  As shown in FIG. 1, the cooling chamber 3 </ b> B is provided with a first temperature measurement unit 31 that measures the temperature in the central portion 3 b 1 and a second temperature measurement unit 32 that measures the temperature in the peripheral portion 3 b 2. . The first temperature measurement unit 31 and the second temperature measurement unit 32 preferably have heat resistance capable of measuring temperature even when exposed to the high temperature coke 2, and are configured from thermocouples in this embodiment. The 2nd temperature measurement part 32 which consists of this thermocouple is attached as shown in FIG. 2, for example. The first temperature measurement unit 31 is also attached in the same manner as the second temperature measurement unit 32.

  As shown in FIG. 2, the second temperature measurement unit 32 is attached to the upper funnel 21. The upper funnel 21 includes a liner 25 that contacts the coke 2 and a support member 26 that supports the liner 25 with a gap. A through hole 27 is formed in the upper funnel 21, and a second temperature measuring unit 32 (thermocouple) is inserted into the through hole 27. The support member 26 is provided with a fixing portion 28 for fixing the second temperature measuring portion 32 with a screw, and the tip of the second temperature measuring portion 32 is disposed in the through hole 27 below the surface of the liner 25. It has become.

  As shown in FIG. 1, the first temperature measurement unit 31 is provided on the skirt portion 13 b of the blast head 11. The first temperature measurement unit 31 is provided on the inner side of the outer edge of the skirt portion 13b so that the influence of gas blowing from the lower portion of the skirt portion 13b is reduced. The second temperature measurement unit 32 is provided in the upper funnel 21. The second temperature measurement unit 32 is provided above the lower end of the upper funnel 21 so that the influence of gas blowing from the lower portion of the upper funnel 21 is reduced.

  As shown in FIG. 3, a plurality of first temperature measuring units 31 are provided at intervals in the central portion 3b1. A total of twelve first temperature measuring portions 31 of the present embodiment are provided every 30 ° in a plan view on a concentric circle C1 with the center of the cooling chamber 3B as a reference. A plurality of second temperature measurement units 32 are provided in the peripheral portion 3b2 in the same number as the first temperature measurement units 31 and in an arrangement corresponding to the arrangement of the first temperature measurement units 31. That is, a total of twelve second temperature measuring units 32 of the present embodiment are provided every 30 ° in a concentric circle C2 with respect to the center of the cooling chamber 3B in plan view.

  As shown in FIG. 4, the gas blowing device 1 of the coke dry-type fire extinguishing equipment is based on the measurement results of the first temperature measuring unit 31 and the second temperature measuring unit 32, and the air volume of the gas blown from the first gas blowing unit 10. And a gas air volume control unit 40 that controls the ratio of the air volume of the gas blown from the second gas blowing unit 20. The gas flow rate control unit 40 is electrically connected to the first temperature measurement unit 31 and the second temperature measurement unit 32, and based on the measurement results, the first butterfly valve drive unit 41 and the second butterfly valve drive. The unit 42 is driven. The first butterfly valve drive unit 41 is connected to the first butterfly valve 15 and drives the first butterfly valve 15 to open and close. The second butterfly valve drive unit 42 is connected to the second butterfly valve 24 and drives the second butterfly valve 24 to open and close.

  The gas flow rate control unit 40 of the present embodiment compares the average value A1 of the measurement results of the plurality of first temperature measurement units 31 with the average value A2 of the measurement results of the plurality of second temperature measurement units 32. And it is the structure which controls the ratio of the air volume of the gas blown from the 1st gas blowing part 10, and the air volume of the gas blown from the 2nd gas blowing part 20. FIG. Specifically, the gas flow rate control unit 40 determines that the absolute value of the difference between the average value A1 of the 12 first temperature measurement units 31 and the average value A2 of the 12 second temperature measurement units 32 exceeds a predetermined threshold. In this case, the number of opened second butterfly valves 24 is increased or decreased to control the ratio of the gas volume blown from the first gas blowing section 10 and the gas volume blown from the second gas blowing section 20. .

Then, the specific operation | movement of the gas blowing apparatus 1 of the coke dry fire extinguishing equipment of the said structure is demonstrated. First, with reference to FIG. 5, the influence of the uneven descent of the coke 2 will be described.
FIG. 5 is a diagram for explaining the relationship between the descending speed of the coke 2 and the temperature.

In the cooling tower 3, the non-uniformity of the descending speed of the coke 2 inevitably generates a portion having a small air volume in the cooling chamber 3B. The portion where the descending speed of the coke 2 is fast (the radius intermediate portion of the cooling chamber 3B (intermediate between the blast head 11 and the upper funnel 21)) has a small air volume, and the air volume with respect to the unit coke passage is too small to be easily cooled ( Cooling air volume basic unit: small), the temperature of coke 2 becomes slightly high. If it does so, the temperature of the gas which heat-exchanged with the high temperature coke 2 will become high, and gas will become difficult to flow more by the pressure loss by the thermal expansion of the gas. As a result, the temperature of the coke 2 is further increased.
Further, the portion where the descending speed of the coke 2 is slow (the core portion of the cooling chamber 3B (immediately above the blast head 11)) has a very small air volume, and the air volume with respect to the unit coke passage is too small to be cooled (cooling air volume) Basic unit: small), the temperature of coke 2 becomes slightly high.

  On the other hand, the portion where the descending speed of the coke 2 is slow (furnace wall portion (side wall) of the cooling chamber 3B) has a large amount of air and is excessively cooled with respect to the unit coke passage amount (cooling air volume basic unit: large). The temperature of the coke 2 is lowered. If it does so, the temperature of the gas which heat-exchanged with the low temperature coke 2 will remain low, the pressure loss by the thermal expansion of the gas will be small, and gas will flow more easily. As a result, the temperature of the coke 2 is further lowered. Therefore, the temperature of the coke 2 is not uniform on the radius of the cooling chamber 3B.

  In the present embodiment, in the lower portion 3b of the cooling chamber 3B, the first gas blowing portion 10 is provided in the central portion 3b1, and the second gas blowing portion 20 is provided in the peripheral portion 3b2, so that the radius of the cooling chamber 3B is increased. The amount of gas to be blown can be adjusted. In the present embodiment, in the lower part 3b of the cooling chamber 3B, the first temperature measurement unit 31 is provided in the central part 3b1, and the second temperature measurement unit 32 is provided in the peripheral part 3b2, thereby providing the radius of the cooling tower 3 The temperature distribution of the coke 2 can be grasped above. In this embodiment, the gas flow rate control unit 40 is provided, and the first gas injection is performed while grasping the temperature distribution of the coke 2 on the radius of the cooling tower 3 by the first temperature measurement unit 31 and the second temperature measurement unit 32. The ratio of the air volume of the gas blown from the part 10 and the second gas blowing part 20 is controlled.

  The gas flow rate control unit 40 compares the average value A1 of the measurement results of the plurality of first temperature measurement units 31 with the average value A2 of the measurement results of the plurality of second temperature measurement units 32, and The ratio of the air volume of the gas blown from the 1 gas blowing section 10 and the air volume of the gas blown from the second gas blowing section 20 is controlled. Specifically, the gas flow rate control unit 40 is a case where the absolute value of the difference between the average value A1 and the average value A2 exceeds a predetermined threshold value, and has a relationship of, for example, average value A1> average value A2. The number of open second butterfly valves 24 shown in FIG. Then, while maintaining the total air volume, the air volume ratio of the gas blown from the second gas blowing section 20 is reduced, and the air volume ratio of the gas blown from the first gas blowing section 10 is relatively increased. If it does so, the cooling air volume basic unit in the radius intermediate part of a cooling tower 3 and a core part will become large, and the temperature of the coke 2 of the higher can be reduced (refer FIG. 5).

Further, when the absolute value of the difference between the average value A1 and the average value A2 exceeds a predetermined threshold value, for example, when the relationship of the average value A1 <average value A2 is satisfied, the gas air volume control unit 40 is shown in FIG. The number of open second butterfly valves 24 shown is increased. Then, the air volume ratio of the gas blown from the second gas blowing section 20 is increased, and the air volume ratio of the gas blown from the first gas blowing section 10 is relatively reduced. If it does so, the cooling air volume basic unit in the furnace wall part of the cooling tower 3 will become large, and the temperature of the high coke 2 can be reduced.
Thus, in this embodiment, the temperature of the coke 2 on the radius of the cooling chamber 3B can be made uniform. In this embodiment, the average value A1 of the measurement results of the plurality of first temperature measurement units 31 and the average value A2 of the measurement results of the plurality of second temperature measurement units 32 are compared. The temperature of the coke 2 on the radius of the cooling chamber 3B can be made uniform without being confused by the measurement result of the part. For this reason, according to this embodiment, more stable operation can be enabled in the coke dry fire extinguishing equipment.

  Moreover, in this embodiment, as shown in FIG. 1, by providing the 1st temperature measurement part 31 in the skirt part 13b of the blast head 11 provided in the center part 3b1 of the lower part 3b of the cooling chamber 3B, center part 3b1 The temperature of the coke 2 can be measured. The skirt portion 13b of the blast head 11 is a portion on which the coke 2 is placed, and the temperature of the coke 2 in the central portion 3b1 can be accurately measured by providing the first temperature measuring portion 31 on the skirt portion 13b. In addition, the first temperature measurement unit 31 is provided on the inner side of the outer edge of the skirt portion 13b, and the gas blown up from the lower portion of the skirt portion 13b does not directly hit, so the measurement error is small.

  In the present embodiment, the temperature of the coke 2 in the peripheral portion 3b2 can be measured by providing the second temperature measuring portion 32 in the upper funnel 21 provided in the peripheral portion 3b2 of the lower portion 3b of the cooling chamber 3B. The upper funnel 21 is closer to the wall of the cooling tower 3 than the lower funnel 22 and is a portion on which the coke 2 is placed. By providing a second temperature measurement unit 32 on the upper funnel 21, the coke 2 in the peripheral portion 3b2 Temperature can be measured accurately. Further, the second temperature measuring unit 32 is provided above the lower end of the upper funnel 21, and the gas blown up from the lower part of the skirt portion 13b does not directly hit, so that the measurement error is small.

  In the present embodiment, a plurality of first temperature measuring units 31 are provided in the central portion 3b1 of the lower portion 3b of the cooling chamber 3B, and a plurality of second temperature measuring portions 32 are provided in the peripheral portion 3b2 of the lower portion 3b of the cooling chamber 3B. Thus, as described above, the temperature distribution of the coke 2 on the radius of the cooling chamber 3B can be accurately grasped without being confused by some measurement results. In the present embodiment, as shown in FIG. 3, the second temperature measurement units 32 are provided in the same number as the first temperature measurement units 31 and in an arrangement corresponding to the arrangement of the first temperature measurement units 31. The first temperature measurement unit 31 and the second temperature measurement unit 32 can be arranged on the radiation passing through the center of 3B. Therefore, for example, a bridging phenomenon in which the powder of coke 2 straddles between the blast head 11 and the upper funnel 21 can be detected. For example, in FIG. 3, what is surrounded by a two-dot chain line is set as a set, and after the coke 2 is cut out, each of the first temperature measurement unit 31 and the second temperature measurement unit 32 on the same radiation is set. If the average value of the set is higher than the average value of the set on other radiation, it can be determined that the coke 2 is bridged between the blast head 11 and the upper funnel 21 at that location.

  Thus, according to the above-described embodiment, the gas blowing device 1 of the coke dry fire extinguishing equipment for blowing gas from the lower portion 3b of the cooling chamber 3B in which the coke 2 is charged in the preliminary chamber 3A, the cooling chamber 3B A first gas blowing part 10 for blowing gas from the central part 3b1 of the lower part 3b, a second gas blowing part 20 for blowing gas from the peripheral part 3b2 of the lower part 3b of the cooling chamber 3B, and a temperature at the central part 3b1. Based on the measurement results of the first temperature measurement unit 31, the second temperature measurement unit 32 that measures the temperature in the peripheral part 3b2, and the first temperature measurement unit 31 and the second temperature measurement unit 32, the first gas blowing unit 10 By adopting the configuration of having the gas flow rate control unit 40 that controls the ratio of the flow rate of the blown gas and the flow rate of the gas blown from the second gas blow unit 20, To equalize the temperature distribution of the coke 2 in diameter upper, more stable coke dry quenching equipment of the gas purging device 1 to the enable operation is obtained in the coke dry quenching facility.

For example, the present invention may employ other embodiments described below.
FIG. 6 is a plan view showing the arrangement of the first temperature measurement unit 31 and the second temperature measurement unit 32 in another embodiment of the present invention. In the following description, the same or equivalent components as those in the above-described embodiment are denoted by the same reference numerals, and the description thereof is simplified or omitted.

  In another embodiment shown in FIG. 6, a total of eight first temperature measuring units 31 are provided every 45 ° in a plan view on a concentric circle C1 with the center of the cooling chamber 3B as a reference. In another embodiment, a plurality of the second temperature measurement units 32 are provided in the peripheral portion 3b2 at a number corresponding to the interval between the first temperature measurement units 31 and more than the first temperature measurement unit 31. That is, a total of twelve second temperature measuring units 32 of the present embodiment are provided every 30 ° in a concentric circle C2 with respect to the center of the cooling chamber 3B in plan view.

  According to this configuration, a plurality of first temperature measuring units 31 are provided in the central portion 3b1 of the lower portion 3b of the cooling chamber 3B, and a plurality of second temperature measuring portions 32 are provided in the peripheral portion 3b2 of the lower portion 3b of the cooling chamber 3B. As described above, the temperature distribution of the coke 2 on the radius of the cooling chamber 3B can be accurately grasped without being confused by some measurement results. Further, according to this configuration, the peripheral portion larger than the central portion 3b1 is provided by providing the second temperature measuring units 32 at a larger number than the first temperature measuring unit 31 and at intervals corresponding to the intervals of the first temperature measuring units 31. In 3b2, the temperature distribution of the coke 2 can be grasped at the same interval as the central portion 3b1, and the number of the first temperature measuring units 31 installed in the central portion 3b1 can be relatively reduced.

  As mentioned above, although preferred embodiment of this invention was described referring drawings, this invention is not limited to the said embodiment. Various shapes, combinations, and the like of the constituent members shown in the above-described embodiments are examples, and various modifications can be made based on design requirements and the like without departing from the gist of the present invention.

  For example, in the above-described embodiment, a configuration in which a plurality of first temperature measurement units 31 and a plurality of second temperature measurement units 32 are provided has been described, but the present invention is not limited to this configuration. For example, the structure which provides the 1st temperature measurement part 31 and the 2nd temperature measurement part 32 by each may be sufficient. Further, for example, in order to grasp the temperature distribution on the radius of the cooling chamber 3B, either the first temperature measurement unit 31 or the second temperature measurement unit 32 on the distributor 12, or the third temperature measurement. A part may be provided.

  DESCRIPTION OF SYMBOLS 1 ... Gas injection apparatus of coke dry-type fire extinguishing equipment, 2 ... Coke, 3 ... Cooling tower, 3A ... Preliminary room, 3B ... Cooling room, 3b ... Lower part, 3b1 ... Central part, 3b2 ... Peripheral part, 10 ... First gas injection 11, blast head, 13 b skirt part (umbrella part), 20 second gas blowing part, 21 upper funnel, 22 lower funnel, 31 first temperature measuring part, 32 second temperature measuring part, 40 ... Gas air volume control unit

Claims (6)

A gas injection device for a coke dry fire extinguishing facility for injecting gas from the lower part of a cooling tower in which coke is charged in the upper part,
A first gas blowing section for blowing the gas from a central portion of the lower portion of the cooling tower;
A second gas blowing section for blowing the gas from a lower peripheral portion of the cooling tower;
A first temperature measurement unit for measuring the temperature in the central portion;
A second temperature measurement unit for measuring the temperature in the peripheral part;
Based on the measurement results of the first temperature measurement unit and the second temperature measurement unit, the ratio of the gas volume blown from the first gas blowing section and the gas volume blown from the second gas blowing section is calculated. A gas flow rate control unit to control,
The first temperature measuring unit, in the central portion, plurality et been at intervals,
A plurality of the second temperature measurement units are provided in the peripheral portion so as to be disposed on the radiation passing through the same center of the cooling tower as the first temperature measurement unit ,
A plurality of the first temperature measurement units are divided into several sets of adjacent ones, and a plurality of the second temperature measurement units are divided into several sets of adjacent ones on the same radiation The coke dry fire extinguishing system is characterized by determining whether or not the coke bridge is generated by comparing an average value of each set of the first temperature measurement unit and the second temperature measurement unit in Gas blowing device. The first gas blowing part is provided in an umbrella-type blast head provided in a central part of the lower part of the cooling tower,
The gas blowing device for a coke dry fire extinguishing facility according to claim 1, wherein the first temperature measurement unit is provided in a skirt portion disposed at a lower portion of a head portion of the blast head. The second gas blowing section is provided between an upper funnel and a lower funnel provided in a lower peripheral portion of the cooling tower,
The gas blowing device for coke dry fire extinguishing equipment according to claim 1, wherein the second temperature measurement unit is provided in the upper funnel. The second temperature measuring unit, according to claim wherein the peripheral portion, a plurality provided in an arrangement corresponding to the arrangement of and in the same number as the first temperature measuring section and the first temperature measuring unit, it is characterized by 1 gas purging means coke dry quenching equipment according to any one of to 3. The second temperature measuring unit, according to claim wherein the peripheral portion, a plurality provided at intervals corresponding to the spacing of and a number from the first temperature measuring section and the first temperature measuring unit, it is characterized by 1 gas purging means coke dry quenching equipment according to any one of to 3. The gas air volume control unit compares the average value of the measurement results of the plurality of first temperature measurement units with the average value of the measurement results of the plurality of second temperature measurement units, and The coke dry method according to any one of claims 1 to 5 , wherein a ratio between an air volume of the gas blown from a gas blowing section and an air volume of the gas blown from the second gas blowing section is controlled. Gas blower for fire extinguishing equipment.

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