CN218755584U - Cooling device, dry quenching stove and dry quenching system of dry quenching - Google Patents
Cooling device, dry quenching stove and dry quenching system of dry quenching Download PDFInfo
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- CN218755584U CN218755584U CN202222965362.7U CN202222965362U CN218755584U CN 218755584 U CN218755584 U CN 218755584U CN 202222965362 U CN202222965362 U CN 202222965362U CN 218755584 U CN218755584 U CN 218755584U
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Abstract
The embodiment of the application provides a cooling device for dry quenching, a dry quenching furnace and a dry quenching system, which comprise a cooling water circulation channel and a cooling water tank; the cooling water circulation channel is arranged in the side wall of a pre-storage chamber of the dry quenching furnace; the cooling water circulation channel comprises a water inlet and a water outlet; the water inlet is communicated with the cooling water tank through a water inlet pipeline; cooling water stored in the cooling water tank flows into the cooling water circulation channel through the water inlet pipeline and the water inlet, and is discharged through the water outlet after heat exchange of the cooling water circulation channel. Through the cooling device of dry quenching of this application embodiment, can improve the cooling efficiency of red burnt.
Description
Technical Field
The application relates to the technical field of dry quenching, in particular to a cooling device for dry quenching, a dry quenching furnace and a dry quenching system.
Background
At present, with the improvement of the requirements of energy conservation and environmental protection, coke is gradually favored by coke plants by adopting a dry quenching cooling method. The dry quenching cooling is to introduce red hot coke into a dry quenching furnace, perform heat exchange with circulating gas to cool the coke, remove coarse coke powder or coke blocks from the circulating gas which is led out from an annular air passage of the dry quenching furnace and reaches 1050 ℃ at most by gravitational settling of a primary dust remover, enter a dry quenching boiler for heat exchange, and reduce the temperature to 155-175 ℃. And the low-temperature circulating gas from the boiler is pressurized by a circulating fan and sent into a dry quenching furnace for recycling after dust with smaller granularity is further removed by a secondary dust remover. In the traditional dry quenching process, circulating gas needs to exchange heat with moisture in a boiler, so that the circulating gas can be cooled, the cooled circulating gas is dedusted by a deduster and then pressurized by a circulating fan and sent into a dry quenching furnace, and the red hot coke in the furnace is cooled, so that the structure is complex, the pipeline is long, and the heat exchange efficiency is not high.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the application is to provide a cooling device, a dry quenching furnace and a dry quenching system for dry quenching to improve the cooling efficiency of red coke. The specific technical scheme is as follows:
an embodiment of a first aspect of the disclosure provides a cooling device for dry quenching, including:
a cooling water flow passage and a cooling water tank; the cooling water circulation channel is arranged in the side wall of a pre-storage chamber of the dry quenching furnace; the cooling water circulation channel comprises a water inlet and a water outlet; the water inlet is communicated with the cooling water tank through a water inlet pipeline;
and cooling water stored in the cooling water tank flows into the cooling water circulation channel through the water inlet pipeline and the water inlet, and is discharged through the water outlet after heat exchange of the cooling water circulation channel.
The first aspect of the disclosed embodiment provides a cooling device for dry quenching, the cooling water circulation channel arranged on the side wall refers to a hollow part arranged inside the side wall of the pre-storage chamber, the hollow part is a channel for cooling water circulation, wherein the water inlet is arranged on the side wall of the pre-storage chamber and forms a certain included angle with the cross section of the cooling water circulation channel, for example, the water inlet can be perpendicular to the cross section of the cooling water circulation channel, one end of the water inlet is communicated with the cooling water circulation channel, and the other end is communicated with the water inlet pipe. In a similar way, the water outlet is also arranged on the side wall of the pre-storage chamber and forms a certain included angle with the cross section of the cooling water circulation channel, for example, the included angle can be perpendicular to the cross section of the cooling water circulation channel, one end of the water outlet is communicated with the cooling water circulation channel, and the other end of the water outlet is used for discharging cooling water after heat exchange. The water inlet and the water outlet are communicated with the cooling water circulation channel, and the water inlet and the water outlet can be arranged at the position of the same cross section, so that the cooling water discharged from the water outlet is the cooling water after sufficient heat exchange.
Through the cooling water that flows in the cooling water circulation passageway to prestoring indoor red burnt cool off promptly the water-cooling, because the specific heat capacity of water is great, rise same temperature and can absorb a large amount of heats, therefore have better cooling effect, can improve the cooling efficiency to red burnt, and the water-cooling still has the effectual advantage of silence. Compare with the mode of cooling through circulating gas cooling promptly among the traditional dry coke quenching technology, the cooling water directly carries out the heat transfer to red burnt, has saved circulating gas earlier with the boiler in the step that the moisture heat transfer cooled down, also need not other medium with heat from red hot coke conduction to cooling water, can reduce the heat loss among the middle heat transfer process, therefore heat exchange efficiency is higher, the structure is simpler moreover.
In addition, the cooling device for dry quenching according to the embodiment of the application can also have the following technical characteristics:
in some embodiments, the pre-storage chamber of the dry quenching furnace has an inner wall and an outer wall; the cooling water circulation passage is provided in the inner wall.
In some embodiments, the water outlet is connected with a water outlet pipeline, and a flow meter and a regulating valve are arranged on the water inlet pipeline; and/or the water outlet pipeline is provided with the flow meter and the regulating valve, the flow meter is used for detecting the flow in the water inlet pipeline and/or the water outlet pipeline, and the regulating valve is used for regulating the flow of the cooling water according to the flow detected by the flow meter.
In some embodiments, the water inlet pipeline is further provided with a first stop valve; and/or a second stop valve is further arranged on the water outlet pipeline, the first stop valve is used for shutting off the water inlet pipeline, and the second stop valve is used for shutting off the water outlet pipeline.
In some embodiments, the side wall forming the cooling water circulation channel and the inner walls of the water inlet pipeline and the water outlet pipeline are provided with corrosion-resistant and high-temperature-resistant coatings.
In some embodiments, the cooling device for dry quenching further comprises a cold water pump disposed between the cooling water tank and the water inlet.
In some embodiments, the cooling water circulation passage is a sealed cavity or a water-cooled wall disposed in a side wall of the pre-storage chamber.
In some embodiments, the cooling device for dry quenching further comprises an air inlet pipeline and an air outlet pipeline which are communicated with the pre-storage chamber, the air inlet pipeline is internally circulated with gas for cooling red coke, and the air outlet pipeline is used for discharging heat-exchanged gas.
In some embodiments, the cooling device for dry quenching further comprises: the coke dry quenching system comprises a dry quenching boiler communicated with the other ends of the gas inlet pipeline and the gas outlet pipeline, and a circulating fan arranged between the dry quenching boiler and the dry quenching boiler, wherein the circulating fan is communicated with a heat exchanger at one end close to the dry quenching boiler, water in the dry quenching boiler exchanges heat with gas to cool the gas, and the cooled gas is pressurized by the circulating fan and then is conveyed into the dry quenching boiler after being exchanged heat by the heat exchanger.
A second aspect of the embodiments of the present application provides a dry quenching furnace, including any one of the cooling devices for dry quenching, wherein a side wall of a pre-storage chamber of the dry quenching furnace is provided with a cooling water circulation channel; the cooling water circulation channel comprises a water inlet and a water outlet; the water inlet is communicated with an external cooling water tank through a water inlet pipeline; and cooling water stored in the external cooling water tank flows into the cooling water circulation channel through the water inlet pipeline and the water inlet, and is discharged through the water outlet after heat exchange of the cooling water circulation channel.
A third aspect of embodiments of the present application provides a dry quenching system including a cooling device for dry quenching by the coke dry quenching system.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and it is also obvious for a person skilled in the art to obtain other embodiments according to the drawings.
FIG. 1 is a schematic diagram of a dry quenching cooling device according to an embodiment of the present disclosure, wherein a regulating valve is located in a water inlet pipe;
FIG. 2 is a schematic structural diagram of a cooling device for dry quenching provided by an embodiment of the application in a second embodiment, wherein a regulating valve is positioned in a water outlet pipeline;
fig. 3 is a schematic structural diagram of a quenching device for dry quenching provided by the embodiment of the application in a third embodiment, wherein a regulating valve is positioned in a water inlet pipeline;
FIG. 4 is a schematic structural diagram of a cooling device for dry quenching provided by an embodiment of the application in a fourth embodiment, wherein a regulating valve is positioned in a water outlet pipeline;
FIG. 5 is a top view of a dry quenching furnace provided in an embodiment of the present application.
Reference numerals:
10-dry quenching; 20-a cooling water tank; 11-a pre-storage room; 12-a furnace roof; 13-a cooling chamber; 110-a side wall; 120-inner wall; 130-an exterior wall; 111-cooling water flow channels; 112-a water inlet; 113-a water outlet; 21-a water inlet pipeline; 22-an outlet conduit; 211-a flow meter; 212-a regulating valve; 213-first stop valve; 216-a second stop valve; 214-a first thermometer; 215-a first pressure gauge; 221-a second pressure gauge; 222-a second thermometer; 30-a cold water pump; 40-a dry quenching boiler; 41-an air inlet pipeline; 42-an outlet pipe; 43-circulating fan; 44-a heat exchanger; 45-a first dust remover; 46-second precipitator.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the description herein are intended to be within the scope of the present disclosure.
It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless specifically identified as an order of performance. It should also be understood that additional or alternative steps may be used.
Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "in 8230 \8230; below" may include both upper and lower orientations. The device may be otherwise oriented, such as rotated 90 degrees or at other orientations, and the spatially relative descriptors used herein interpreted accordingly.
In order to improve the cooling efficiency of red-hot coke in a dry quenching furnace, as shown in fig. 1 to 5, an embodiment of a first aspect of the present disclosure proposes a cooling device for dry quenching, which includes a cooling water circulation passage 111 and a cooling water tank 20; wherein, the cooling water circulation channel 111 is arranged in the side wall 110 of the pre-storage chamber 11 of the dry quenching furnace 10; the cooling water circulation passage 111 includes a water inlet 112 and a water outlet 113; the water inlet 112 is communicated with the cooling water tank 20 through a water inlet pipeline 21; the cooling water stored in the cooling water tank 20 flows into the cooling water flow passage 111 through the water inlet pipe 21 and the water inlet 112, exchanges heat in the cooling water flow passage 111, and is discharged through the water outlet 113.
In a first aspect of the embodiment of the present disclosure, the cooling water circulation channel 111 disposed on the side wall 110 refers to a hollow part inside the side wall 110, and the hollow part is a channel for cooling water to circulate, where the water inlet 112 is disposed on the side wall 110 of the pre-storage chamber 11, and forms an included angle with the cross section of the cooling water circulation channel 111, for example, the included angle may be perpendicular to the cross section of the cooling water circulation channel 111, and one end of the water inlet 112 is communicated with the cooling water circulation channel 111, and the other end is communicated with the water inlet pipe 21. Similarly, the water outlet 113 is also disposed on the sidewall 110 of the pre-storage chamber 11, and forms a certain included angle with the cross section of the cooling water flowing channel 111, for example, the included angle can be perpendicular to the cross section of the cooling water flowing channel 111, one end of the water outlet 113 is communicated with the cooling water flowing channel 111, and the other end is used for discharging the cooling water after heat exchange. The water inlet 112 and the water outlet 113 are both communicated with the cooling water circulation channel 111, and the water inlet 112 and the water outlet 113 can be arranged at the same cross section, so that the cooling water discharged from the water outlet 113 is the cooling water after sufficient heat exchange.
In red hot coke introduced prestoring room 11 from the furnace roof 12 of dry quenching stove 10, the cooling water that flows in through cooling water circulation passageway 111 cools off prestoring room 11 red burnt promptly water-cooling, because the specific heat capacity of water is great, risees the same temperature and can absorb a large amount of heats, therefore has better cooling effect, can improve the cooling efficiency to red burnt, and the water-cooling still has the effectual advantage of silence. Compare with the mode of cooling through circulating gas cooling promptly among the traditional dry coke quenching technology, the cooling water directly carries out the heat transfer to red burnt, has saved circulating gas earlier with the boiler in the step that the moisture heat transfer cooled down, also need not other medium with heat from red hot coke conduction to cooling water, can reduce the heat loss among the middle heat transfer process, therefore heat exchange efficiency is higher, the structure is simpler moreover.
Specifically, the cooling water tank 20 may be a demineralized water tank, and the cooling water may be demineralized water, which is finished water obtained by removing impurities from water, such as suspended solids, colloids, and inorganic cations and anions, by using various water treatment processes. The demineralized water is used as cooling water, so that the probability of scale generation in the cooling water circulation channel 111 or the water inlet pipeline 21 or the water outlet pipeline 22 can be reduced, and the working performance of the cooling device for dry quenching is improved.
Wherein, the cooling water can produce a large amount of steam with the heat transfer of red burnt, and steam can supply devices such as steam turbine to use, and then improves economic efficiency. Specifically, the area of the cooling water passage 111 may be calculated according to the actually required amount of steam.
In some embodiments of the present application, the pre-chamber 11 of the dry quenching furnace 10 has an inner wall 120 and an outer wall 130; the cooling water circulation passage 111 is provided in the inner wall 120.
In this application embodiment, the lateral wall 110 of the prestoring room 11 includes interior wall 120 and outer wall 130 two parts, interior wall 120 is located the one side that lateral wall 110 is close to red hot coke, outer wall 130 is built at the one side that red hot coke was kept away from to interior wall 120, outer wall 130 forms lateral wall 110 with the laminating of interior wall 120, set up cooling water circulation passageway 111 in interior wall 120, can make the cooling water in the cooling water circulation passageway 111 more be close to red hot coke, and then make cooling water and red hot coke heat transfer process faster, and then improve the cooling efficiency of red hot coke.
In some embodiments of the present application, the water outlet 113 is connected to the water outlet pipe 22, and the water inlet pipe 21 is provided with a flow meter 211 and a regulating valve 212; and/or, a flow meter 211 and a regulating valve 212 are arranged on the water outlet pipe 22, the flow meter 211 is used for detecting the flow in the water inlet pipe 21 and/or the water outlet pipe 22, and the regulating valve 212 is used for regulating the flow of the cooling water according to the flow value detected by the flow meter 211.
In the embodiment of the present application, the outlet pipe 22 is connected to the water outlet 113, so that the cooling water after heat exchange can be delivered to a specified position as required.
As shown in fig. 1, in an implementation manner of the embodiment of the present application, the flow meter 211 may be disposed in the water inlet pipe 21, and the flow meter 211 may detect a flow value of the cooling water in the water inlet pipe 21 in real time, so as to ensure that the flow of the water in the water inlet pipe 21 is appropriate. The inlet pipe 21 is provided with an adjusting valve 212, the flow meter 211 can be used for detecting the flow rate of the cooling water in the inlet pipe 21, and the adjusting valve 212 is used for adjusting the flow rate of the cooling water according to the flow rate detected by the flow meter 211 so that the flow rate value in the inlet pipe 21 is kept stable.
In another embodiment of the present application, as shown in fig. 2, a flow meter 211 may be disposed in the water outlet pipe 22, and the flow rate of the cooling water in the water outlet pipe 22 may be detected in real time by the flow meter 211, so as to ensure that the water flow in the water outlet pipe 22 is appropriate. The outlet pipe 22 is provided with a regulating valve 212, the flow meter 211 can be used for detecting the flow rate of the cooling water in the water pipe 22, and the regulating valve 212 is used for regulating the flow rate of the cooling water according to the flow rate detected by the flow meter 211 so that the flow rate value of the outlet pipe 22 is kept stable.
Specifically, one end of the water outlet pipe 22, which is far away from the water outlet 113, may be connected to different water and/or gas utilization devices according to actual needs, so as to recycle the cooling water after heat exchange or the steam generated in the heat exchange process.
In some embodiments of the present application, the water inlet pipe 21 is further provided with a first stop valve 213; and/or a second stop valve 216 is further arranged on the water outlet pipe 22, the first stop valve 213 is used for closing the water inlet pipe 21, and the second stop valve 216 is used for closing the water outlet pipe 22.
In the embodiment of the present application, as shown in fig. 2, in an implementation manner of the embodiment of the present application, a first stop valve 213 is provided on the water inlet pipe 21, the stop valve 213 is a means for preventing the medium from flowing, and the on/off of the cooling water in the water inlet pipe 21 can be controlled by controlling the stop valve 213 according to actual needs. As shown in fig. 1, in another implementation manner of the embodiment of the present application, a stop valve 216 is disposed on the water outlet pipe 22, and similarly, the on-off of the cooling water in the water outlet pipe 22 can be controlled by controlling a second stop valve 216 at the water outlet pipe 22 according to actual needs.
In some embodiments of the present application, the water inlet pipe 21 is further provided with a first pressure gauge 215 and a first temperature gauge 214, and the water outlet pipe 22 is further provided with a second pressure gauge 221 and a second temperature gauge 222.
In this embodiment, the water inlet pipe 21 may be provided with a first pressure gauge 215, the water outlet pipe 22 may be provided with a second pressure gauge 221, the pressure gauges are used for measuring fluid pressure, and in the operating state of the cooling device for dry quenching, because the bearing capacity of the pipes is limited, the pressure values of the water inlet pipe 21 and the water outlet pipe 22 need to be detected in real time, so as to reduce the probability of danger such as pipe explosion caused by untimely detection of pressure in the pipes, and the pressure gauges may adjust the valves 212. The first thermometer 214 is arranged at the water inlet pipeline 21, the second thermometer 222 is arranged at the water outlet pipeline 22, and the cooling water in the pipeline exchanges heat in the dry quenching furnace 10, so the temperature in the pipeline needs to be monitored in real time at the water inlet pipeline 21 and the water outlet pipeline 22, and further the heat exchange state of the red coke and the cooling water is monitored, so that the coke quenching process is safely carried out.
Further, the first pressure gauge 215 and the second pressure gauge 221 may have the same structure, type, and the like. The first thermometer 214 and the second thermometer 222 may have the same structure, kind, type, etc.
In some embodiments of the present application, the side walls forming the cooling water flow channel 111 and the inner walls of the water inlet pipe 21 and the water outlet pipe 22 are provided with corrosion-resistant and high-temperature-resistant coatings.
In the embodiment of the present application, since the temperature in the dry quenching furnace 10 is high, the temperature in the pre-storage chamber 11 can reach 1050 ℃ at most, the temperature in the upper part of the cooling chamber 13 can reach 850 ℃ at most, and the temperature in the lower part of the cooling chamber 13 can reach 400 ℃ at most. Therefore, the side wall of the cooling water flow channel 111, the inner walls of the water inlet pipe 21 and the water outlet pipe 22 are all provided with corrosion-resistant and high-temperature-resistant coatings. In the process of cooling the red coke, the anticorrosive high-temperature coating can play a role in protecting the inner walls of the cooling water circulation channel 111, the water inlet pipeline 21 and the water outlet pipeline 22, reduce the damage of the high-temperature cooling water to the inner walls of the cooling water circulation channel 111, the water inlet pipeline 21 and the water outlet pipeline 22, and further prolong the service life of the cooling device for dry quenching.
In some embodiments of the present application, the cooling device for dry quenching further comprises a cold water pump 30, the cold water pump 30 being disposed between the cooling water tank 20 and the water inlet.
In this application embodiment, cold water pump 30 locates and can provide power for the flow of cooling water between cooling water tank 20 and water inlet 112 to pass through inlet channel 21 with the cooling water in the cooling water tank 20 and carry to cooling water circulation passageway 111 fast in, accelerate the flow rate of cooling water, and then increase the cooling efficiency of cooling water to red burnt.
In some embodiments of the present application, the cooling water circulation passage 111 is a sealed cavity or a water cooled wall provided in the side wall 110 of the pre-chamber 11.
In the embodiment of the application, the water-cooled wall is composed of a plurality of rows of steel pipes, flowing media for cooling are arranged in the steel pipes, the water-cooled wall is used for absorbing heat of red-hot coke by the media in the water-cooled wall, the temperature of the side wall 110 of the pre-storage chamber 11 is reduced, the furnace wall of the dry quenching furnace can be protected in the process of cooling the coke, the pipe wall of the water-cooled wall is a direct heating part, flowing water or gas can exchange heat with the red coke in the water-cooled wall, and in the embodiment of the application, the inner wall of the water-cooled wall can be flowing cooling water. Specifically, the water-cooling wall includes light pipe type water-cooling wall and membrane water-cooling wall, preferably, can select the membrane water-cooling wall earlier in this application embodiment, the membrane water-cooling wall is formed by the seamless steel pipe welding of taking the fin, connect with the fin between the water-cooling wall pipe, make the water-cooling wall become a whole, this kind of structure can strengthen the water-cooling wall and pass, and greatly reduced furnace wall's temperature, and compare in the water-cooling wall of other types, light in weight, sealing performance is better, be applied to in the lateral wall 110 of prestoring room 11 with the membrane water-cooling wall, can make the probability that reduces the cooling water and reveal, and then make cooling water and red burnt carry out abundant heat transfer, improve the heat exchange efficiency of cooling water and red burnt.
As shown in fig. 4 and 5, in some embodiments of the present application, the cooling device for dry quenching further includes an inlet duct 41 and an outlet duct 42 communicated with the pre-storage chamber 11, wherein the inlet duct 41 is circulated with gas for cooling red coke, and the outlet duct 42 is used for discharging the heat-exchanged gas.
In this application embodiment, cycle gas can follow inlet line 41 and get into prestore in the room 11, cycle gas carries out the heat exchange with the red burnt of high temperature after, cycle gas after the heat transfer can be through giving vent to anger pipeline 42 discharge prestore room 11, increase cycle gas and cool off red burnt in cooling device, can further cool off red burnt on carrying out water-cooled basis red burnt, the temperature that makes red burnt that can be faster reduces, and then improves the cooling efficiency of dry quenching stove 10 interior red burnt.
In some embodiments of the present application, the cooling device for dry quenching further comprises: the coke dry quenching system comprises a coke dry quenching boiler 40 communicated with the other ends of an air inlet pipeline 41 and an air outlet pipeline 42, and a circulating fan 43 arranged between the coke dry quenching boiler 40 and the coke dry quenching furnace 10, wherein the circulating fan is communicated with a heat exchanger 44 at one end close to the coke dry quenching furnace 10, water in the coke dry quenching boiler 40 exchanges heat with gas to cool the gas, and the cooled gas is pressurized by the circulating fan 43, then is subjected to heat exchange by the heat exchanger 44 and is conveyed into the coke dry quenching furnace 10.
In the embodiment of the present application, after the circulating gas in the dry quenching furnace 10 exchanges heat with the red hot coke, the high-temperature circulating gas carrying a large amount of heat enters the dry quenching boiler 40 through the gas outlet pipe 42 to be cooled, and the dry quenching boiler 40 can absorb the heat in the circulating gas to generate steam for a steam turbine and the like. Cooled circulating gas enters the dry quenching furnace 10 again through the gas inlet pipe 41 to cool the red hot coke, the temperature of the circulating gas can be reduced by cooling the circulating gas, the circulating gas can exchange heat with the red coke better, and the cooling efficiency of the red coke is improved. An air outlet pipeline 42 of the dry quenching furnace 10 is connected with an air inlet of a circulating fan 43, circulating gas enters the dry quenching boiler 40 after being pressurized by the circulating fan 43, and a power source is provided for the circulating gas to flow to the dry quenching furnace 10 through the circulating fan 43, so that the circulating gas quickly flows into the dry quenching furnace 10, the circulating process of the circulating gas is accelerated, the cooled circulating gas can enter the dry quenching furnace 10 as soon as possible to cool red coke, and the cooling efficiency of the red coke is improved.
The circulating fan 43 may be disposed on a side close to the coke dry quenching boiler 40 to accelerate the discharge rate of the circulating gas from the coke dry quenching boiler, so that the circulating gas rapidly enters the coke dry quenching furnace 10 under the action of the circulating fan, thereby reducing heat loss during the flowing process of the circulating gas and improving the cooling efficiency of the red coke.
In this application embodiment, be equipped with heat exchanger 44 on the admission line 41, circulating fan 43 and heat exchanger 44 intercommunication, the gas after circulating fan 43 pressurizes gets into and can further cool off in the heat exchanger 44 to the circulating gas temperature that makes the entering dry quenching stove 10 is lower, reaches the temperature that can carry out abundant cooling to red burnt, and then improves the heat exchange efficiency of dry quenching stove 10, and then plays better cooling effect to the red burnt in the dry quenching stove 10.
A second aspect of the embodiment of the present application provides a dry quenching furnace, where a side wall of a pre-storage chamber 11 of the dry quenching furnace 10 is provided with a cooling water circulation channel 111; the cooling water circulation passage 111 includes a water inlet 112 and a water outlet 113; the water inlet 113 is communicated with an external cooling water tank 20 through a water inlet pipeline 21; the cooling water stored in the external cooling water tank 20 flows into the cooling water flow passage 111 through the water inlet pipe 21 and the water inlet 112, exchanges heat in the cooling water flow passage 111, and is discharged through the water outlet 113.
In this application embodiment, through the cooling water that flows in the cooling water circulation passageway 111 red burnt in to prestoring room 11 cool off promptly water-cooling, because the specific heat capacity of water is great, rise the same temperature and can absorb a large amount of heats, therefore have better cooling effect, can improve the cooling efficiency to red burnt, and the water-cooling still has the effectual advantage of silence. Compared with the mode of cooling by circulating gas in the traditional coke dry quenching process, namely air cooling, the method has the advantages that the cooling water directly exchanges heat with the red coke, the step of cooling by the circulating gas by water heat exchange in a boiler is omitted, other media are not needed to conduct heat from the red coke to the cooling water, the heat loss in the middle heat exchange process can be reduced, the heat exchange efficiency is higher, and the structure is simpler.
A third aspect of embodiments of the present application provides a dry quenching system including a cooling device for dry quenching.
In the embodiment of the present application, the dry quenching system further includes a first dust remover 45 and a second dust remover 46, the first dust remover 45 being located between the dry quenching furnace 10 and the dry quenching boiler 40, and the second dust remover 46 being located between the dry quenching boiler 40 and the circulation fan 43. The first dust remover 45 is positioned between the dry quenching furnace 10 and the dry quenching boiler 40, the circulating gas discharged from the gas outlet pipeline 42 is subjected to gravity settling through the first dust remover 45 to remove coarse coke powder or coke blocks, the circulating gas after heat exchange is cleaned for the first time, the second dust remover 46 is positioned between the dry quenching boiler 40 and the circulating fan 43, the cooled low-temperature circulating gas discharged from the dry quenching boiler 40 can further remove dust with smaller particle size through the second dust remover 46, and the cooled low-temperature circulating gas is pressurized by the circulating fan 43 and is sent into the dry quenching furnace 10 for recycling. The first dust remover 45 and the second dust remover 46 are used for removing dust from the circulating gas, so that the circulating gas can be cleaned and the pipeline is not easy to block.
The above description is only for the preferred embodiment of the present application and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application are included in the protection scope of the present application.
Claims (10)
1. A cooling apparatus for dry quenching coke, comprising: a cooling water flow passage (111) and a cooling water tank (20); wherein the cooling water circulation channel (111) is arranged in a side wall (110) of a pre-storage chamber (11) of the dry quenching furnace (10); the cooling water circulation channel (111) comprises a water inlet (112) and a water outlet (113); the water inlet (112) is communicated with the cooling water tank (20) through a water inlet pipeline (21);
the cooling water stored in the cooling water tank (20) flows into the cooling water circulation channel (111) through the water inlet pipeline (21) and the water inlet (112), and is discharged through the water outlet (113) after the heat exchange of the cooling water circulation channel (111).
2. Cooling device for dry quenching according to claim 1, characterized in that a pre-storage compartment (11) of the dry quenching oven (10) has an inner wall (120) and an outer wall (130); the cooling water circulation passage (111) is provided in the inner wall (120).
3. The cooling device for dry quenching as claimed in claim 1, wherein a water outlet pipe (22) is connected to the water outlet (113), and a flow meter (211) and a regulating valve (212) are arranged on the water inlet pipe (21); and/or the water outlet pipeline (22) is provided with the flow meter (211) and the regulating valve (212), the flow meter (211) is used for detecting the flow in the water inlet pipeline (21) and/or the water outlet pipeline (22), and the regulating valve (212) is used for regulating the flow of the cooling water according to the flow detected by the flow meter (211).
4. Cooling device for dry quenching according to claim 3, characterized in that the side walls forming the cooling water flow channel (111) and the inner walls of the water inlet duct (21) and the water outlet duct (22) are provided with a corrosion and temperature resistant coating.
5. Cooling device for dry quenching according to any of the claims 1-4, characterized in that the cooling device for dry quenching further comprises a cold water pump (30), the cold water pump (30) being arranged between the cooling water tank (20) and the water inlet (112).
6. Cooling device for dry quenching according to any of the claims 1 to 4, characterized in that the cooling water flow channel (111) is a sealed cavity or a water cooled wall arranged in the side wall (110) of the pre-storage chamber (11).
7. Cooling device for dry quenching according to any of claims 1 to 4, characterized in that it further comprises a gas inlet duct (41) and a gas outlet duct (42) communicating with the pre-storage chamber (11), the gas inlet duct (41) having a gas for cooling the red coke flowing therein, the gas outlet duct (42) being for discharging the heat-exchanged gas.
8. The cooling device of dry quenching as claimed in claim 7, wherein the cooling device of dry quenching further comprises: the coke dry quenching boiler is characterized by comprising a coke dry quenching boiler (40) communicated with the other ends of the gas inlet pipeline (41) and the gas outlet pipeline (42), and a circulating fan (43) arranged between the coke dry quenching boiler (40) and the coke dry quenching furnace (10), wherein the circulating fan (43) is communicated with a heat exchanger (44) at one end close to the coke dry quenching furnace (10), water in the coke dry quenching boiler (40) exchanges heat with gas to cool the gas, the cooled gas is pressurized by the circulating fan (43), and then is conveyed into the coke dry quenching furnace (10) after being exchanged heat by the heat exchanger (44).
9. A dry quenching furnace, characterized by comprising a cooling device for dry quenching as claimed in any one of claims 1 to 8;
a cooling water circulation channel (111) is arranged on the side wall (110) of the pre-storage chamber (11) of the dry quenching furnace (10);
the cooling water circulation channel (111) comprises a water inlet (112) and a water outlet (113); the water inlet (112) is communicated with an external cooling water tank (20) through a water inlet pipeline (21);
cooling water stored in the external cooling water tank (20) flows into the cooling water circulation channel (111) through the water inlet pipeline (21) and the water inlet (112), and is discharged through the water outlet (113) after heat exchange of the cooling water circulation channel (111).
10. A dry quenching system, characterized in that the dry quenching system comprises a cooling device for dry quenching by any one of claims 1-8.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222965362.7U CN218755584U (en) | 2022-11-08 | 2022-11-08 | Cooling device, dry quenching stove and dry quenching system of dry quenching |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222965362.7U CN218755584U (en) | 2022-11-08 | 2022-11-08 | Cooling device, dry quenching stove and dry quenching system of dry quenching |
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