CN217465399U - Flue gas quenching and spraying device of steelmaking electric furnace - Google Patents
Flue gas quenching and spraying device of steelmaking electric furnace Download PDFInfo
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- CN217465399U CN217465399U CN202221275737.0U CN202221275737U CN217465399U CN 217465399 U CN217465399 U CN 217465399U CN 202221275737 U CN202221275737 U CN 202221275737U CN 217465399 U CN217465399 U CN 217465399U
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Abstract
The utility model discloses a flue gas quenching and spraying device of a steelmaking electric furnace, which belongs to the technical field of flue gas cooling of the steelmaking electric furnace, and comprises a quench tower, a circulating water pool, a first atomizing pump outlet electric door, a first cooling water pneumatic valve, a first cooling water pneumatic regulating valve, a compressed air solenoid valve, a first layer spray gun, a second atomizing pump outlet electric door, a second cooling water pneumatic valve, a second cooling water pneumatic regulating valve and a second layer spray gun, wherein the quench tower comprises an inlet electric valve, an outlet regulating valve and a quench chamber, and the inlet electric valve and the outlet regulating valve are communicated with the quench chamber; the first atomizing pump is communicated with the circulating water tank through a pipeline; the outlet electric door of the first atomizing pump is communicated with the first atomizing pump through a pipeline; the first cooling water hydraulic valve is communicated with an outlet electric valve of the first atomizing pump through a pipeline. The utility model discloses reach and improve the cooling effect, the difficult technological effect who burns out of sack cleaner filter bag.
Description
Technical Field
The utility model belongs to the technical field of steelmaking electric furnace flue gas cooling, in particular to steelmaking electric furnace flue gas rapid cooling atomizer.
Background
The flue gas temperature at the inlet of the bag-type dust collector in the electric furnace steelmaking waste heat saturated steam power generation technology cannot be higher than the normal temperature, if the flue gas temperature is higher than 230 ℃, the flue gas temperature at the inlet of the bag-type dust collector can be raised when a waste heat boiler breaks down, the normal temperature of the flue gas at the inlet of the bag-type dust collector with high temperature can be burnt out quickly if the temperature is not reduced.
At present, in the existing flue gas cooling technology for steel making electric furnaces, a heat pipe evaporator is usually installed in a boiler, the heat pipe evaporator is formed by combining a plurality of heat pipe elements, when high-temperature flue gas flows through a heated section of a heat pipe, heat of the high-temperature flue gas is transferred to a heated section of an air flow passing through the heat pipe, after the air flow absorbs heat of the high-temperature flue gas through the heated section of the heat pipe, a liquid medium in the heated section of the heat pipe absorbs heat and is gasified, the gasified medium flows to a heat release section of the heat pipe, and heat emission is realized after the heat release section of the heat pipe is cooled through the outside. However, in the process of cooling the high-temperature flue gas by installing the heat pipe evaporator in the waste heat boiler, the heat pipe evaporator cannot timely cool the high-temperature flue gas flowing at a high speed, so that the cooling effect of the high-temperature flue gas is poor, and the filter bag of the bag-type dust collector is easily burnt.
In conclusion, in the existing steelmaking electric furnace flue gas cooling technology, the technical problems of poor cooling effect and easy burning of the filter bag of the bag-type dust collector exist.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that the cooling effect is poor, and the technical problem that the sack cleaner filter bag easily burns out.
In order to solve the technical problem, the utility model provides a steelmaking electric stove flue gas rapid cooling atomizer, the device includes: the quenching tower comprises an inlet electric valve, an outlet adjusting valve and a quenching chamber, wherein the inlet electric valve and the outlet adjusting valve are communicated with the quenching chamber; the first atomizing pump is communicated with the circulating water tank through a pipeline; the outlet electric door of the first atomizing pump is communicated with the first atomizing pump through a pipeline; the first cooling water hydraulic valve is communicated with an outlet electric valve of the first atomizing pump through a pipeline; the first cooling water pneumatic regulating valve is communicated with the first cooling water pneumatic valve through a pipeline; the first layer of spray gun is arranged in the quenching chamber and is respectively communicated with the first cooling water pneumatic control valve and the compressed air electromagnetic valve through pipelines; the second atomizing pump is communicated with the circulating water tank through a pipeline; the outlet electric door of the second atomizing pump is communicated with the second atomizing pump through a pipeline; the second cooling water hydraulic valve is communicated with an outlet electric valve of the second atomizing pump through a pipeline; the second cooling water pneumatic regulating valve is communicated with the second cooling water pneumatic valve through a pipeline; the second layer of spray guns are arranged in the quenching chamber and are respectively communicated with the second cooling water pneumatic regulating valve and the compressed air electromagnetic valve through pipelines; the second layer of spray guns are arranged close to the inlet electric valve, and the first layer of spray guns are arranged close to the outlet adjusting valve.
Further, the apparatus further comprises: the settling chamber is communicated with the quenching tower through a flue; and the electric valve at the inlet of the quenching tower is arranged on a pipeline between the settling chamber and the flue at the inlet of the quenching tower.
Further, the apparatus further comprises: and the bag-type dust remover is communicated with the outlet flue of the quenching tower.
Further, the apparatus further comprises: and the outlet adjusting door of the quenching tower is arranged between the bag-type dust remover and the outlet flue of the quenching tower.
Further, the apparatus further comprises: and the air mixing valve is arranged in a flue between the outlet regulating valve of the quenching tower and the bag-type dust remover.
Further, the apparatus further comprises: and the induced draft fan is communicated with the bag-type dust collector through a pipeline.
Further, the apparatus further comprises: and the chimney is communicated with the induced draft fan through a flue.
Further, the apparatus further comprises: and the waste heat boiler is respectively communicated with the settling chamber and the outlet regulating valve through a flue.
Further, the apparatus further comprises: a boiler inlet valve mounted to a pipe between the waste heat boiler and the settling chamber; and the boiler outlet valve is arranged on a pipeline between the waste heat boiler and the outlet regulating valve of the quenching tower.
Has the advantages that:
the utility model provides a steelmaking electric stove flue gas rapid cooling atomizer, through the quench tower in the entry motorised valve and the export transfer valve all communicate with the quench chamber each other, first atomizing pump and circulating water pond communicate each other through the pipeline, first atomizing pump export motorised valve and first atomizing pump communicate each other through the pipeline, first cooling water pneumatic valve and first atomizing pump export motorised valve communicate each other through the pipeline, first cooling water pneumatic valve and first cooling water pneumatic valve communicate each other through the pipeline, the first layer spray gun sets up in the quench chamber inside of quench tower, the first layer spray gun communicates each other through the pipeline with first cooling water pneumatic valve and compressed air solenoid valve respectively. The second atomizing pump is communicated with the circulating water tank through a pipeline; the outlet electric door of the second atomizing pump is communicated with the second atomizing pump through a pipeline; the second cooling water hydraulic valve is communicated with an outlet electric valve of the second atomizing pump through a pipeline; the second cooling water pneumatic regulating valve is communicated with the second cooling water pneumatic valve through a pipeline; the second layer of spray gun is arranged in the quenching chamber and is respectively communicated with the second cooling water pneumatic regulating valve and the compressed air electromagnetic valve through pipelines; the second layer of spray guns are arranged at the position close to the inlet electric valve, and the first layer of spray guns are arranged at the position close to the outlet regulating valve. Thus, when the temperature of the outlet regulating valve of the quenching tower is higher, the first atomizing pump is started, the outlet electric door of the first atomizing pump, the first cooling water pneumatic control valve and the compressed air solenoid valve are opened, cold water can be conveyed to the first layer spray gun, a large amount of cold water is atomized by the first layer spray gun and then is quickly sprayed into the quenching chamber of the quenching tower, when the temperature is continuously increased, the second atomizing pump can be started, the outlet electric door of the second atomizing pump, the second cooling water pneumatic control valve and the second cooling water pneumatic control valve are opened, cold water can be conveyed to the second layer spray gun, a large amount of cold water is atomized by the second layer spray gun and then is quickly sprayed into the quenching chamber of the quenching tower, the temperature of smoke in the quenching chamber can be timely reduced, the smoke temperature of the outlet regulating valve of the quenching tower is not higher than the normal temperature of the inlet of the bag-type dust collector, the interior of the quenching chamber of the quenching tower is cooled, the flue gas with the temperature not higher than the normal temperature is provided for the bag-type dust collector, the cooling effect is favorably improved, and the filter bag of the bag-type dust collector is not easy to burn. Thereby achieving the technical effects of improving the cooling effect and preventing the filter bag of the bag-type dust collector from being burnt.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a first schematic view of a flue gas quenching and spraying device for a steelmaking electric furnace provided by an embodiment of the present invention;
fig. 2 is a schematic diagram two of a flue gas quenching and spraying device for a steelmaking electric furnace provided by the embodiment of the utility model.
Detailed Description
The utility model discloses a 1 flue gas atomizer of steelmaking electric stove quench tower, through in the quench tower 1 entry motorised valve 11 and export transfer valve 12 all communicate with quench chamber 13 each other, first atomizing pump 22 and circulating water pond 21 communicate each other through the pipeline, first atomizing pump export motorised valve 23 and first atomizing pump 22 communicate each other through the pipeline, first cooling water pneumatic control valve 24 and first atomizing pump export motorised valve 23 communicate each other through the pipeline, first cooling water pneumatic control valve 25 and first cooling water pneumatic control valve 24 communicate each other through the pipeline, first layer spray gun 27 sets up inside quench chamber 13 of quench tower 1, first layer spray gun 27 communicates each other through the pipeline with first cooling water pneumatic control valve 25 and compressed air solenoid valve 26 respectively. The second atomizing pump 28 is communicated with the circulating water tank 21 through a pipeline; the outlet electric door 29 of the second atomizing pump is communicated with the second atomizing pump 28 through a pipeline; the second cooling water hydraulic valve 30 is communicated with the second atomizing pump outlet electric valve 29 through a pipeline; the second cooling water pneumatic control valve 31 is communicated with the second cooling water pneumatic valve 30 through a pipeline; the second layer of spray guns 32 are arranged in the quenching chamber 13, and the second layer of spray guns 32 are respectively communicated with the second cooling water pneumatic control valve 31 and the compressed air electromagnetic valve through pipelines; wherein, the second layer of spray guns 32 is arranged near the inlet electric valve 11, and the first layer of spray guns 27 is arranged near the outlet regulating valve 12. Thus, when the temperature of the outlet regulating valve 12 of the quenching tower 1 is higher, the first atomizing pump 22 is started, the outlet electric door 23 of the first atomizing pump, the first cooling water hydraulic valve 24, the first cooling water pneumatic regulating valve 25 and the compressed air electromagnetic valve 26 are opened, cold water is conveyed to the first layer spray gun 27, a large amount of cold water is atomized by the first layer spray gun 27 and then quickly sprayed into the quenching chamber 13 of the quenching tower 1, when the temperature continues to rise, the second atomizing pump 28 can also be started, the outlet electric door 29 of the second atomizing pump, the second cooling water hydraulic valve 30 and the second cooling water pneumatic regulating valve 31 are opened, cold water is conveyed to the second layer spray gun 32, a large amount of cold water is atomized by the second layer spray gun 32 and then quickly sprayed into the quenching chamber 13 of the quenching tower 1, the temperature of smoke in the quenching chamber 13 can be timely reduced, and the smoke temperature of the outlet regulating valve 12 of the quenching tower 1 is not higher than the normal temperature of the inlet of the bag-type dust collector 5, through cooling down to 13 insides in quench chamber of quench tower 1, for sack cleaner 5 provides the flue gas that is not higher than normal temperature, be favorable to improving the cooling effect, sack cleaner 5 filter bags are difficult for burning out. Thereby achieving the technical effects of improving the cooling effect and preventing the filter bag of the bag-type dust collector 5 from being burnt.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art belong to the protection scope of the present invention; the "and/or" keyword "referred to in this embodiment represents sum or two cases, in other words, a and/or B mentioned in the embodiment of the present invention represents two cases of a and B, A or B, and describes three states where a and B exist, such as a and/or B, representing: only A does not include B; only B does not include A; including A and B.
It will be understood that, although the terms first, second, 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 are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. 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. Spatially relative terms, such as "below," "above," and the like, may be used herein to facilitate describing one element or feature's relationship to another element or feature. It will be understood that the 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 or features described as "lower" would then be oriented "upper" other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Also, in embodiments of the invention, when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions used in the embodiments of the present invention are for illustrative purposes only and are not intended to limit the present invention.
Referring to fig. 1 and fig. 2, fig. 1 is a first schematic diagram of a flue gas spraying device of a quenching tower 1 of a steel-making electric furnace according to an embodiment of the present invention, and fig. 2 is a second schematic diagram of a flue gas spraying device of a quenching tower 1 of a steel-making electric furnace according to an embodiment of the present invention. The embodiment of the utility model provides a steelmaking electric furnace quench tower 1 flue gas spraying device, which comprises a quench tower 1, a circulating water pool 21, a first atomizing pump 22, a first atomizing pump outlet electric door 23, a first cooling water pneumatic valve 24, a first cooling water pneumatic regulating valve 25, a compressed air solenoid valve 26, a first layer spray gun 27, a second atomizing pump 28, a second atomizing pump outlet electric door 29, a second cooling water pneumatic valve 30, a second cooling water pneumatic regulating valve 31 and a second layer spray gun 32, the quenching tower 1, the circulating water tank 21, the first atomizing pump 22, the first atomizing pump outlet electric door 23, the first cooling water pneumatic valve 24, the first cooling water pneumatic regulating valve 25, the compressed air electromagnetic valve 26, the first layer spray gun 27, the second atomizing pump 28, the second atomizing pump outlet electric door 29, the second cooling water pneumatic valve 30, the second cooling water pneumatic regulating valve 31 and the second layer spray gun 32 are respectively explained in detail:
for the quench tower 1:
the quenching tower 1 comprises an inlet electric valve 11, an outlet regulating valve 12 and a quenching chamber 13, wherein the inlet electric valve 11 and the outlet regulating valve 12 are communicated with the quenching chamber 13.
Specifically, the quenching tower 1 may be integrally formed by an inlet electric valve 11, an outlet adjusting valve 12, and a quenching chamber 13, wherein the inlet electric valve 11 and the outlet adjusting valve 12 are both ends of the quenching tower 1, the inlet electric valve 11 is used for inputting the flue gas into the quenching chamber 13, and the outlet adjusting valve 12 is used for discharging the flue gas cooled in the quenching chamber 13. Inside the quench chamber 13 of the quench tower 1 there is a space for accommodating the first tier lances 27 and the second tier lances 32.
For the circulating water tank 21, the first atomizing pump 22, the first atomizing pump outlet electric valve 23, the first cooling water pneumatic valve 24, the first cooling water pneumatic regulating valve 25, the compressed air solenoid valve 26, the first layer spray gun 27, the second atomizing pump 28, the second atomizing pump outlet electric valve 29, the second cooling water pneumatic valve 30, the second cooling water pneumatic regulating valve 31, and the second layer spray gun 32:
the spray gun device comprises a circulating water tank 21, a first atomizing pump 22, a first atomizing pump outlet electric door 23, a first cooling water pneumatic valve 24, a first cooling water pneumatic regulating valve 25, a compressed air solenoid valve 26 and a first layer of spray guns 27, wherein the first layer of spray guns 27 can be 1 spray gun, 2 spray guns, 3 spray guns, 4 spray guns and the like, and the first atomizing pump 22 and the circulating water tank 21 are communicated with each other through pipelines; the outlet electric door 23 of the first atomizing pump and the first atomizing pump 22 are communicated with each other through a pipeline; the first cooling water hydraulic valve 24 and the first atomizing pump outlet electric valve 23 are communicated with each other through a pipeline; the first cooling water pneumatic control valve 25 and the first cooling water pneumatic valve 24 are communicated with each other through a pipeline; the first layer spray gun 27 is arranged in the quenching chamber 13, and the first layer spray gun 27 is respectively communicated with the first cooling water pneumatic regulating valve 25 and the compressed air electromagnetic valve 26 through pipelines. The second atomizing pump 28 and the circulating water tank 21 are communicated with each other through a pipeline; the outlet electric door 29 of the second atomizing pump and the second atomizing pump 28 are communicated with each other through a pipeline; the second cooling water hydraulic valve 30 and the second atomizing pump outlet electric valve 29 are communicated with each other through a pipeline; the second cooling water pneumatic control valve 31 and the second cooling water pneumatic valve 30 are communicated with each other through a pipe; the second layer of spray guns 32 are arranged in the quenching chamber 13, and the second layer of spray guns 32 are respectively communicated with the second cooling water pneumatic control valve 31 and the compressed air electromagnetic valve 26 through pipelines; wherein the second layer spray gun 32 is arranged close to the inlet electric valve 11, and the first layer spray gun 27 is arranged close to the outlet regulating valve 12.
Specifically, the circulating water tank 21 may be filled with cooling water, and the first atomizing pump outlet electric door 23 may be a water outlet valve of the first atomizing pump 22. The first coolant water valve 24 may be referred to as a coolant water valve. The first cooling water damper valve 25 may be a valve that adjusts the amount of mist to be sprayed. The cooling water in the circulating water tank 21 can flow into the first layer spray gun 27 through the first atomizing pump 22, the first atomizing pump outlet electric valve 23, the first cooling water pneumatic control valve 24 and the first cooling water pneumatic control valve 25 in sequence, the compressed air electromagnetic valve 26 conveys the compressed air to the first layer spray gun 27, and a valve can be further arranged between the compressed air electromagnetic valve 26 and the corresponding first layer spray gun 27 and used for regulating and controlling the on-off state of the first layer spray gun 27. The first layer spray gun 27 may be installed near the outlet adjustment valve 12 of the quenching tower 1, for example, by installing the nozzle of the first layer spray gun 27 in the quenching chamber 13 of the quenching tower 1, after the cooling water flowing into the first layer spray gun 27 through the first atomizing pump 22, the first atomizing pump outlet electric gate 23, the first cooling water pneumatic valve 24 and the first cooling water pneumatic adjustment valve 25 is atomized by the first layer spray gun 27, the atomized cooling water is sprayed from the nozzle of the first layer spray gun 27 into the quenching chamber 13 of the quenching tower 1. By spraying a large amount of atomized cooling water into the quenching chamber 13 from the nozzle of the first layer spray gun 27, the high-temperature flue gas in the quenching chamber 13 can be rapidly cooled. Because the high-temperature flue gas flows from the inlet electric valve 11 to the outlet regulating valve 12, the cooling water sprayed from the nozzle of the first-layer spray gun 27 is sprayed in the direction opposite to the flowing direction of the high-temperature flue gas, and a large amount of high-temperature flue gas can be quickly cooled. Since the second atomizing pump 28 and the first atomizing pump 22 have the same structure and principle, they will not be described in detail herein. Since the second atomizing pump outlet electric door 29 and the first atomizing pump outlet electric door 23 have the same structure and principle, the description thereof will not be repeated. Since the second cooling water valve 30 and the first cooling water valve 24 have the same structure and principle, they will not be described in detail herein. Since the second cooling water pneumatic control valve 31 and the first cooling water pneumatic control valve 25 have the same structure and principle, they will not be described in detail herein. Since the structures and principles of the second layer spray gun 32 and the first layer spray gun 27 are the same, the description will not be repeated here. In this way, in the quenching chamber 13, the plurality of first tier lances 27 are located at the upper tier, and the plurality of second tier lances 32 are located at the lower tier, and the number of the plurality of first tier lances 27 may be 6, and the number of the plurality of second tier lances 32 may be 6. The cooling water after atomization is sprayed into the quenching chamber 13 through the first layer spray guns 27 and the second layer spray guns 32, so that the temperature of the flue gas inside the quenching chamber 13 can be timely reduced, and the temperature of the flue gas at the outlet of the quenching tower 1 is not higher than the normal temperature of the inlet of the bag-type dust collector 5.
It is worth mentioning that two thermocouples may be provided at the outlet regulating valve 12, by which the temperature at the outlet regulating valve 12 is measured in real time. And when the deviation of the measured values of the two thermocouples is more than 30 ℃, judging that one thermocouple is a dead pixel. The average value is got to 2 exit temperatures of quench tower, and exit temperature control value sets for 220 ℃, adjusts the aperture of first layer cooling water regulating valve and second floor cooling water regulating valve through the PID controller, and then ensures that quench tower export smoke temperature is about 220 ℃. The opening of the layer-reducing valve is set to 10%, and the outlet temperature of the layer-reducing valve is set to 205 ℃. The opening set value of the layering valve is 90%, and the temperature set value of the layering outlet is 222 ℃.
The embodiment of the utility model provides a steelmaking electric stove quench tower 1 flue gas atomizer still includes deposit room 3, quench tower entry motorised valve 4, sack cleaner 5, quench tower export throttle 6, air mixing valve 7, draught fan 8, chimney 9, exhaust-heat boiler 10, boiler inlet valve 101 and boiler outlet valve 102, deposit room 3 and quench tower 1 communicate each other through the flue; the electric valve 4 at the inlet of the quenching tower is arranged between the settling chamber 3 and the flue at the inlet of the quenching tower. The bag-type dust collector 5 and the outlet regulating valve 12 are communicated with each other through a pipeline. And the outlet throttle 6 of the quenching tower is arranged on the bag-type dust collector 5 and is communicated with the outlet flue of the quenching tower. And the air mixing valve 7 is arranged in a flue between the outlet regulating valve 6 of the quenching tower and the bag-type dust collector 5. The induced draft fan 8 and the bag-type dust collector 5 are communicated with each other through a flue. The chimney 9 and the induced draft fan 8 are communicated with each other through a flue. The waste heat boiler 10 is respectively communicated with the settling chamber 3 and the outlet regulating valve 12 through a flue. The boiler inlet valve 101 is installed in the pipe between the waste heat boiler 10 and the settling chamber 3; the boiler outlet valve 102 is installed on the pipeline between the waste heat boiler 10 and the outlet regulating valve 6 of the quenching tower.
Specifically, the high-temperature flue gas can flow into the bag-type dust collector 5 from the exhaust-heat boiler 10, the settling chamber 3, the electric valve 4 at the inlet of the quench tower, the damper 6 at the outlet of the quench tower and the air mixing valve 7 in sequence, and then is conveyed to the chimney 9 through the induced draft fan 8 from the bag-type dust collector 5 to be discharged. Or the high-temperature flue gas can flow into the bag-type dust collector 5 from the waste heat boiler 10, the boiler outlet valve 102 and the air mixing valve 7 in sequence, and then is conveyed to the chimney 9 from the bag-type dust collector 5 through the induced draft fan 8 for emission. When exhaust-heat boiler 10 breaks down, high temperature flue gas then follows the deposit room 3, quench tower entry motorised valve 4, quench tower export throttle 6 and air mixing valve 7 flow into sack cleaner 5, high temperature flue gas is at the in-process that flows to quench tower export throttle 6 from quench tower entry motorised valve 4, high temperature flue gas can follow entry motorised valve 11 and flow into in the quench chamber 13 and discharge from export throttle 12 again, spray the cooling water after the atomizing to quench chamber 13 in through first layer spray gun 27 and second floor spray gun 32 this moment, can carry out rapid cooling to high temperature flue gas, provide the flue gas that is not higher than normal temperature for sack cleaner 5, can ensure that the flue gas temperature of 5 entrys of sack cleaner is less than 230 ℃, be favorable to improving the cooling effect, make the difficult burnout of sack cleaner 5 filter bags.
The utility model provides a 1 flue gas atomizer of steelmaking electric stove quench tower, through 1 well entry motorised valve 11 of quench tower and export transfer valve 12 all communicate with quench chamber 13 each other, first atomizing pump 22 and circulating water pond 21 communicate each other through the pipeline, first atomizing pump export motorised valve 23 and first atomizing pump 22 communicate each other through the pipeline, first cooling water pneumatic control valve 24 and first atomizing pump export motorised valve 23 communicate each other through the pipeline, first cooling water pneumatic control valve 25 and first cooling water pneumatic control valve 24 communicate each other through the pipeline, first layer spray gun 27 sets up inside quench chamber 13 of quench tower 1, first layer spray gun 27 communicates each other through the pipeline with first cooling water pneumatic control valve 25 and compressed air solenoid valve 26 respectively. The second atomizing pump 28 is communicated with the circulating water tank 21 through a pipeline; the outlet electric door 29 of the second atomizing pump is communicated with the second atomizing pump 28 through a pipeline; the second cooling water hydraulic valve 30 is communicated with the second atomizing pump outlet electric valve 29 through a pipeline; the second cooling water pneumatic control valve 31 is communicated with the second cooling water pneumatic valve 30 through a pipeline; the second layer of spray guns 32 are arranged in the quenching chamber 13, and the second layer of spray guns 32 are respectively communicated with the second cooling water pneumatic control valve 31 and the compressed air solenoid valve through pipelines; wherein, the second layer of spray guns 32 is arranged near the inlet electric valve 11, and the first layer of spray guns 27 is arranged near the outlet regulating valve 12. Thus, when the temperature of the outlet regulating valve 12 of the quenching tower 1 is higher, the first atomizing pump 22 is started, the outlet electric door 23 of the first atomizing pump, the first cooling water hydraulic valve 24, the first cooling water pneumatic regulating valve 25 and the compressed air electromagnetic valve 26 are opened, cold water is conveyed to the first layer spray gun 27, a large amount of cold water is atomized by the first layer spray gun 27 and then quickly sprayed into the quenching chamber 13 of the quenching tower 1, when the temperature continues to rise, the second atomizing pump 28 can also be started, the outlet electric door 29 of the second atomizing pump, the second cooling water hydraulic valve 30 and the second cooling water pneumatic regulating valve 31 are opened, cold water is conveyed to the second layer spray gun 32, a large amount of cold water is atomized by the second layer spray gun 32 and then quickly sprayed into the quenching chamber 13 of the quenching tower 1, the temperature of smoke in the quenching chamber 13 can be timely reduced, and the smoke temperature of the outlet regulating valve 12 of the quenching tower 1 is not higher than the normal temperature of the inlet of the bag-type dust collector 5, through cooling down to 13 insides of quench chamber to quench tower 1, provide the flue gas that is not higher than normal temperature for sack cleaner 5, be favorable to improving the cooling effect, sack cleaner 5 filter bag is difficult for burning out. Thereby achieving the technical effects of improving the cooling effect and preventing the filter bag of the bag-type dust collector 5 from being burnt.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the examples, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.
Claims (9)
1. A flue gas quenching and spraying device for a steelmaking electric furnace is characterized by comprising: the quenching tower comprises an inlet electric valve, an outlet adjusting valve and a quenching chamber, wherein the inlet electric valve and the outlet adjusting valve are communicated with the quenching chamber; the first atomizing pump is communicated with the circulating water tank through a pipeline; the outlet electric door of the first atomizing pump is communicated with the first atomizing pump through a pipeline; the first cooling water hydraulic valve is communicated with an outlet electric valve of the first atomizing pump through a pipeline; the first cooling water pneumatic regulating valve is communicated with the first cooling water pneumatic valve through a pipeline; the first layer of spray gun is arranged in the quenching chamber and is respectively communicated with the first cooling water pneumatic control valve and the compressed air electromagnetic valve through pipelines; the second atomizing pump is communicated with the circulating water tank through a pipeline; the outlet electric door of the second atomizing pump is communicated with the second atomizing pump through a pipeline; the second cooling water hydraulic valve is communicated with an outlet electric valve of the second atomizing pump through a pipeline; the second cooling water pneumatic regulating valve is communicated with the second cooling water pneumatic valve through a pipeline; the second layer of spray gun is arranged in the quenching chamber and is respectively communicated with the second cooling water pneumatic regulating valve and the compressed air electromagnetic valve through pipelines; the second layer of spray guns are arranged close to the inlet electric valve, and the first layer of spray guns are arranged close to the outlet adjusting valve.
2. The steelmaking electric furnace flue gas quenching and spraying apparatus as claimed in claim 1, wherein said apparatus further comprises:
the settling chamber is communicated with the quenching tower through a flue;
and the electric valve at the inlet of the quenching tower is arranged between the settling chamber and the flue at the inlet of the quenching tower.
3. The steelmaking electric furnace flue gas quenching and spraying apparatus as claimed in claim 2, wherein said apparatus further comprises:
and the bag-type dust remover is communicated with the outlet flue of the quenching tower.
4. The steelmaking electric furnace flue gas quenching and spraying apparatus as claimed in claim 3, wherein said apparatus further comprises:
and the outlet adjusting door of the quenching tower is arranged between the bag-type dust remover and the outlet flue of the quenching tower.
5. The steelmaking electric furnace flue gas quenching and spraying apparatus as claimed in claim 4, wherein said apparatus further comprises:
and the air mixing valve is arranged in a flue between the outlet regulating valve of the quenching tower and the bag-type dust remover.
6. The steelmaking electric furnace flue gas quenching and spraying apparatus as claimed in claim 4, wherein said apparatus further comprises:
and the induced draft fan is communicated with the bag-type dust collector through a flue.
7. The steelmaking electric furnace flue gas quenching and spraying apparatus as claimed in claim 6, wherein said apparatus further comprises:
and the chimney is communicated with the induced draft fan through a flue.
8. The steelmaking electric furnace flue gas quenching and spraying apparatus as claimed in claim 4, wherein said apparatus further comprises:
and the waste heat boiler is respectively communicated with the settling chamber and the outlet regulating valve through a flue.
9. The steelmaking electric furnace flue gas quenching and spraying apparatus as claimed in claim 8, wherein said apparatus further comprises:
a boiler inlet valve mounted to a pipe between the waste heat boiler and the settling chamber;
and the boiler outlet valve is arranged on a pipeline between the waste heat boiler and the outlet regulating valve of the quenching tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221275737.0U CN217465399U (en) | 2022-05-25 | 2022-05-25 | Flue gas quenching and spraying device of steelmaking electric furnace |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221275737.0U CN217465399U (en) | 2022-05-25 | 2022-05-25 | Flue gas quenching and spraying device of steelmaking electric furnace |
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| CN217465399U true CN217465399U (en) | 2022-09-20 |
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| CN202221275737.0U Active CN217465399U (en) | 2022-05-25 | 2022-05-25 | Flue gas quenching and spraying device of steelmaking electric furnace |
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