A quenching device, quenching furnace and quenching system for dry quenching

Abstract

This application provides a cooling device, a dry quenching furnace, and a dry quenching system for coke quenching, including a cooling water flow channel and a cooling water tank. The cooling water flow channel is located in the side wall of the pre-storage chamber of the dry quenching furnace. The cooling water flow channel includes an inlet and an outlet. The inlet is connected to the cooling water tank via an inlet pipe. Cooling water stored in the cooling water tank flows into the cooling water flow channel through the inlet pipe and inlet, and after heat exchange in the cooling water flow channel, it is discharged through the outlet. The cooling device for dry quenching according to this application embodiment can improve the cooling efficiency of red-hot coke.

Description

Technical Field

[0001] This application relates to the field of dry quenching technology, and in particular to a cooling device, a dry quenching furnace, and a dry quenching system for dry quenching. Background Technology

[0002] With increasing demands for energy conservation and environmental protection, dry quenching cooling of coke is gaining popularity in coking plants. Dry quenching involves introducing hot coke into a dry quenching furnace, where it exchanges heat with circulating gas to cool the coke. Circulating gas, reaching temperatures up to 1050°C, is drawn from the furnace's annular gas duct. After being subjected to gravity settling in a primary dust collector to remove coarse coke powder or lumps, it enters the dry quenching boiler for heat exchange, where its temperature drops to 155–175°C. The low-temperature circulating gas from the boiler is further purified by a secondary dust collector to remove even smaller dust particles before being pressurized and reintroduced into the dry quenching furnace by a circulating fan for reuse. In traditional dry quenching processes, the circulating gas needs to exchange heat with moisture in the boiler to cool down. The cooled gas then passes through a dust collector for dust removal before being pressurized and reintroduced into the dry quenching furnace by a circulating fan to cool the hot coke. This process is not only complex but also involves long piping, resulting in low heat exchange efficiency. Summary of the Invention

[0003] The purpose of this application is to provide a cooling device, a dry quenching furnace, and a dry quenching system for dry quenching coke, so as to improve the cooling efficiency of red-hot coke. The specific technical solution is as follows:

[0004] An embodiment of the first aspect of this disclosure provides a cooling device for dry quenching coke, comprising:

[0005] A cooling water flow channel and a cooling water tank; wherein the cooling water flow channel is located in the side wall of the pre-storage chamber of the dry quenching furnace; the cooling water flow channel includes an inlet and an outlet; the inlet is connected to the cooling water tank through an inlet pipe;

[0006] The cooling water stored in the cooling water tank flows into the cooling water circulation channel through the water inlet pipe and the water inlet, and is discharged through the water outlet after heat exchange in the cooling water circulation channel.

[0007] The first aspect of this disclosure provides a cooling device for dry quenching coke. A cooling water flow channel located on the side wall refers to a hollow portion inside the side wall of a pre-storage chamber, which serves as the channel for cooling water flow. An inlet is located on the side wall of the pre-storage chamber, forming a certain angle with the cross-section of the cooling water flow channel, for example, it can be perpendicular to the cross-section of the cooling water flow channel. One end of the inlet is connected to the cooling water flow channel, and the other end is connected to an inlet pipe. Similarly, an outlet is also located on the side wall of the pre-storage chamber, forming a certain angle with the cross-section of the cooling water flow channel, for example, it can be perpendicular to the cross-section of the cooling water flow channel. One end of the outlet is connected to the cooling water flow channel, and the other end is used to discharge the cooled water after heat exchange. Both the inlet and outlet are connected to the cooling water flow channel, and the inlet and outlet can be located at the same cross-sectional position, thereby ensuring that the cooling water discharged from the outlet is fully heat-exchanged cooling water.

[0008] Water cooling, where cooling water flows through a cooling water channel to cool the red-hot coke in the pre-storage chamber, is highly efficient. Due to water's high specific heat capacity, it absorbs a large amount of heat to raise the temperature, resulting in superior cooling performance and improved efficiency. Water cooling also offers the advantage of quiet operation. Compared to traditional dry quenching processes that use circulating gas for cooling (air cooling), water directly exchanges heat with the red-hot coke, eliminating the need for the circulating gas to first exchange heat with water in the boiler for cooling. It also eliminates the need for other media to transfer heat from the hot coke to the cooling water, reducing heat loss during intermediate heat exchange. This results in higher heat exchange efficiency and a simpler structure.

[0009] In addition, the cooling device for dry quenching coke according to the embodiments of this application may also have the following technical features:

[0010] In some embodiments, the pre-storage chamber of the dry quenching furnace has an inner wall and an outer wall; the cooling water flow channel is disposed in the inner wall.

[0011] In some embodiments, the outlet is connected to an outlet pipe, and the inlet pipe is equipped with a flow meter and a regulating valve; and / or, the outlet pipe is equipped with the flow meter and the regulating valve, the flow meter is used to detect the flow rate in the inlet pipe and / or the outlet pipe, and the regulating valve is used to adjust the flow rate of the cooling water according to the flow rate detected by the flow meter.

[0012] In some embodiments, the inlet pipe is further provided with a first shut-off valve; and / or, the outlet pipe is further provided with a second shut-off valve, wherein the first shut-off valve is used to shut off the inlet pipe and the second shut-off valve is used to shut off the outlet pipe.

[0013] In some embodiments, the sidewalls forming the cooling water flow channel and the inner walls of the inlet and outlet pipes are provided with anti-corrosion and high-temperature resistant coatings.

[0014] In some embodiments, the cooling device for dry quenching coke further includes a cold water pump located between the cooling water tank and the water inlet.

[0015] In some embodiments, the cooling water flow channel is a sealed cavity or water-cooled wall disposed in the side wall of the pre-storage chamber.

[0016] In some embodiments, the cooling device for dry quenching coke further includes an inlet pipe and an outlet pipe connected to the pre-storage chamber, wherein gas for cooling the red-hot coke flows through the inlet pipe, and the outlet pipe is used to discharge the gas after heat exchange.

[0017] In some embodiments, the cooling device for dry quenching coke further includes: a dry quenching boiler connected to the other end of the air inlet pipe and the air outlet pipe, and a circulating fan disposed between the dry quenching boiler and the dry quenching furnace. The circulating fan is connected to a heat exchanger at the end near the dry quenching furnace. The water in the dry quenching boiler exchanges heat with the gas to cool the gas. The cooled gas is pressurized by the circulating fan, and after heat exchange by the heat exchanger, it is transported to the dry quenching furnace.

[0018] A second aspect of this application provides a dry quenching furnace, including a cooling device for dry quenching coke as described in any one of the claims. The side wall of the pre-storage chamber of the dry quenching furnace is provided with a cooling water flow channel. The cooling water flow channel includes an inlet and an outlet. The inlet is connected to an external cooling water tank through an inlet pipe. Cooling water stored in the external cooling water tank flows into the cooling water flow channel through the inlet pipe and the inlet, and is discharged through the outlet after heat exchange in the cooling water flow channel.

[0019] A third aspect of this application provides a dry quenching system, the dry quenching system comprising a cooling device for the dry quenching process. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other embodiments can be obtained based on these drawings.

[0021] Figure 1 A schematic diagram of the structure of the dry quenching cooling device provided in one embodiment of this application, wherein the regulating valve is located in the water inlet pipe;

[0022] Figure 2 A schematic diagram of the structure of the dry quenching cooling device provided in the embodiments of this application in a second embodiment, wherein the regulating valve is located in the water outlet pipe;

[0023] Figure 3 A schematic diagram of the structure of the dry quenching cooling device provided in the embodiments of this application in a third embodiment, wherein the regulating valve is located in the water inlet pipe;

[0024] Figure 4 A schematic diagram of the structure of the dry quenching cooling device provided in the embodiments of this application in the fourth embodiment, wherein the regulating valve is located in the water outlet pipe;

[0025] Figure 5 This is a top view of the dry quenching furnace provided in an embodiment of this application.

[0026] Figure label:

[0027] 10-Dry quenching furnace; 20-Cooling water tank; 11-Pre-storage chamber; 12-Furnace top; 13-Cooling chamber; 110-Side wall; 120-Inner wall; 130-Outer wall; 111-Cooling water flow channel; 112-Inlet; 113-Outlet; 21-Inlet pipe; 22-Outlet pipe; 211-Flow meter; 212-Regulating valve; 213-First shut-off valve; 216-Second shut-off valve; 214-First thermometer; 215-First pressure gauge; 221-Second pressure gauge; 222-Second thermometer; 30-Cold water pump; 40-Dry quenching coke boiler; 41-Inlet pipe; 42-Outlet pipe; 43-Circulating fan; 44-Heat exchanger; 45-First dust collector; 46-Second dust collector. Detailed Implementation

[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art based on this application are within the scope of protection of this application.

[0029] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0030] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0031] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "over," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure is flipped, an element described as "below other elements or features" or "below other elements or features" would subsequently be oriented as "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented, such as rotated 90 degrees or in other directions, and the spatial relative descriptors used in the text will be interpreted accordingly.

[0032] To improve the cooling efficiency of red-hot coke in the dry quenching furnace, such as Figures 1 to 5As shown, an embodiment of the first aspect of this disclosure provides a cooling device for dry quenching coke. The cooling device includes a cooling water flow channel 111 and a cooling water tank 20. The cooling water flow channel 111 is disposed in the side wall 110 of the pre-storage chamber 11 of the dry quenching furnace 10. The cooling water flow channel 111 includes an inlet 112 and an outlet 113. The inlet 112 is connected to the cooling water tank 20 through an inlet pipe 21. The cooling water stored in the cooling water tank 20 flows into the cooling water flow channel 111 through the inlet pipe 21 and the inlet 112, and is discharged through the outlet 113 after heat exchange in the cooling water flow channel 111.

[0033] The first aspect of this disclosure provides a cooling device for dry quenching coke. A cooling water flow channel 111 located on the side wall 110 refers to a hollow portion inside the side wall 110, which serves as the channel for cooling water flow. An inlet 112 is located on the side wall 110 of the pre-storage chamber 11, forming a certain angle with the cross-section of the cooling water flow channel 111, for example, it can be perpendicular to the cross-section of the cooling water flow channel 111. One end of the inlet 112 is connected to the cooling water flow channel 111, and the other end is connected to the inlet pipe 21. Similarly, an outlet 113 is also located on the side wall 110 of the pre-storage chamber 11, forming a certain angle with the cross-section of the cooling water flow channel 111, for example, it can be perpendicular to the cross-section of the cooling water flow channel 111. One end of the outlet 113 is connected to the cooling water flow channel 111, and the other end is used to discharge the cooled water after heat exchange. Both the inlet 112 and the outlet 113 are connected to the cooling water flow channel 111, and the inlet 112 and the outlet 113 can be located at the same cross-sectional position, so that the cooling water discharged from the outlet 113 is the cooling water after sufficient heat exchange.

[0034] Red-hot coke is introduced into the pre-storage chamber 11 from the top 12 of the dry quenching furnace 10. Cooling water flowing through the cooling water circulation channel 111 cools the red-hot coke in the pre-storage chamber 11 – this is water cooling. Because water has a high specific heat capacity, it can absorb a large amount of heat to raise the temperature, thus providing a better cooling effect and improving the cooling efficiency of the red-hot coke. Water cooling also has the advantage of quiet operation. Compared to the traditional dry quenching process that uses circulating gas for cooling (air cooling), the cooling water directly exchanges heat with the red-hot coke, eliminating the step of the circulating gas exchanging heat with water in the boiler for cooling. It also eliminates the need for other media to transfer heat from the red-hot coke to the cooling water, reducing heat loss during intermediate heat exchange. Therefore, the heat exchange efficiency is higher, and the structure is simpler.

[0035] Specifically, the cooling water tank 20 can be a demineralized water tank, and the cooling water can be demineralized water. Demineralized water refers to the finished water obtained after removing suspended solids, colloids, and inorganic cations and anions from the water using various water treatment processes. Using demineralized water as cooling water can reduce the probability of scale formation in the cooling water flow channel 111, or inlet pipe 21 or outlet pipe 22, thereby improving the working performance of the dry quenching coke cooling device.

[0036] The heat exchange between the cooling water and the red-hot coke generates a large amount of steam, which can be supplied to turbines and other equipment, thereby improving economic efficiency. Specifically, the area of ​​the cooling water flow channel 111 can be calculated based on the actual required steam volume.

[0037] In some embodiments of this application, the pre-storage chamber 11 of the dry quenching furnace 10 has an inner wall 120 and an outer wall 130; the cooling water flow channel 111 is disposed in the inner wall 120.

[0038] In this embodiment of the application, the side wall 110 of the pre-storage chamber 11 includes two parts: an inner wall 120 and an outer wall 130. The inner wall 120 is located on the side of the side wall 110 closer to the red-hot coke, and the outer wall 130 is built on the side of the inner wall 120 away from the red-hot coke. The outer wall 130 and the inner wall 120 are attached to form the side wall 110. The cooling water flow channel 111 is set in the inner wall 120, which can make the cooling water in the cooling water flow channel 111 closer to the red-hot coke, thereby making the heat exchange process between the cooling water and the red-hot coke faster, and thus improving the cooling efficiency of the red-hot coke.

[0039] In some embodiments of this application, the outlet 113 is connected to an outlet pipe 22, and the inlet pipe 21 is equipped with a flow meter 211 and a regulating valve 212; and / or, the outlet pipe 22 is equipped with a flow meter 211 and a regulating valve 212, the flow meter 211 is used to detect the flow rate in the inlet pipe 21 and / or the outlet pipe 22, and the regulating valve 212 is used to adjust the flow rate of the cooling water according to the flow rate value detected by the flow meter 211.

[0040] In this embodiment of the application, by connecting the outlet pipe 22 to the outlet 113, the cooled water after heat exchange can be delivered to a designated location as needed.

[0041] like Figure 1 As shown, in one embodiment of this application, a flow meter 211 can be installed in the water inlet pipe 21. The flow meter 211 can detect the flow rate of the cooling water in the water inlet pipe 21 in real time, ensuring that the water flow in the water inlet pipe 21 is appropriate. A regulating valve 212 is provided on the water inlet pipe 21. The flow meter 211 can be used to detect the flow rate of the cooling water in the water inlet pipe 21, and the regulating valve 212 can be used to adjust the flow rate of the cooling water according to the flow rate detected by the flow meter 211 so that the flow rate in the water inlet pipe 21 remains stable.

[0042] like Figure 2 As shown, in another embodiment of this application, the flow meter 211 can be installed in the outlet pipe 22. The flow meter 211 can detect the flow rate of the cooling water in the outlet pipe 22 in real time, ensuring that the water flow in the outlet pipe 22 is appropriate. A regulating valve 212 is provided on the outlet pipe 22. The flow meter 211 can be used to detect the flow rate of the cooling water in the outlet pipe 22, and the regulating valve 212 can be used to adjust 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 remains stable.

[0043] Specifically, the end of the water outlet pipe 22 furthest from the water outlet 113 can be connected to different water and / or gas devices as needed to recover and reuse the cooling water after heat exchange or the steam generated during the heat exchange process.

[0044] In some embodiments of this application, the inlet pipe 21 is further provided with a first shut-off valve 213; and / or, the outlet pipe 22 is further provided with a second shut-off valve 216, wherein the first shut-off valve 213 is used to shut off the inlet pipe 21 and the second shut-off valve 216 is used to shut off the outlet pipe 22.

[0045] In the embodiments of this application, such as Figure 2 As shown, in one embodiment of this application, a first shut-off valve 213 is provided on the water inlet pipe 21. The shut-off valve 213 is a tool to prevent the flow of medium. According to actual needs, the flow of cooling water in the water inlet pipe 21 can be controlled by controlling the shut-off valve 213. Figure 1 As shown, in another embodiment of this application, a shut-off valve 216 is provided on the water outlet pipe 22. Similarly, the flow of cooling water in the water outlet pipe 22 can be controlled by controlling the second shut-off valve 216 at the water outlet pipe 22 as needed.

[0046] In some embodiments of this application, the inlet pipe 21 is further provided with a first pressure gauge 215 and a first thermometer 214, and the outlet pipe 22 is further provided with a second pressure gauge 221 and a second thermometer 222.

[0047] In this embodiment, a first pressure gauge 215 can be installed on the inlet pipe 21, and a second pressure gauge 221 can be installed on the outlet pipe 22. Pressure gauges are instruments for measuring fluid pressure. During the operation of the dry quenching cooling device, due to the limited load-bearing capacity of the pipes, it is necessary to monitor the pressure values ​​of the inlet pipe 21 and the outlet pipe 22 in real time. This reduces the probability of dangers such as pipe rupture caused by untimely pressure detection within the pipes. The pressure gauge can be adjusted by valve 212. A first thermometer 214 is installed at the inlet pipe 21, and a second thermometer 222 is installed at the outlet pipe 22. Since the cooling water in the pipes exchanges heat within the dry quenching furnace 10, it is necessary to monitor the temperature within the pipes in real time at the inlet pipe 21 and the outlet pipe 22, thereby monitoring the heat exchange status between the red-hot coke and the cooling water, ensuring the safe operation of the quenching process.

[0048] Furthermore, the structure, type, and function of the first pressure gauge 215 and the second pressure gauge 221 can be the same. Similarly, the structure, type, and function of the first thermometer 214 and the second thermometer 222 can be the same.

[0049] In some embodiments of this application, the sidewalls forming the cooling water flow channel 111 and the inner walls of the inlet pipe 21 and the outlet pipe 22 are provided with anti-corrosion and high-temperature resistant coatings.

[0050] In this embodiment, the temperature inside the dry quenching furnace 10 is very high, reaching up to 1050°C inside the pre-storage chamber 11, up to 850°C at the top of the cooling chamber 13, and up to 400°C at the bottom. Therefore, anti-corrosion and high-temperature resistant coatings are provided on the side walls of the cooling water flow channel 111, the inlet pipe 21, and the inner walls of the outlet pipe 22. During the cooling process of the red-hot coke, the anti-corrosion and high-temperature coatings protect the inner walls of the cooling water flow channel 111, the inlet pipe 21, and the outlet pipe 22, reducing damage from the high-temperature cooling water and thus extending the service life of the dry quenching cooling device.

[0051] In some embodiments of this application, the cooling device for dry quenching coke further includes a cold water pump 30, which is located between the cooling water tank 20 and the water inlet 112.

[0052] In this embodiment, the cold water pump 30 is located between the cooling water tank 20 and the inlet 112 to provide power for the flow of cooling water, thereby quickly transporting the cooling water in the cooling water tank 20 to the cooling water flow channel 111 through the inlet pipe 21, accelerating the flow speed of the cooling water, and thus increasing the cooling efficiency of the cooling water on the red coke.

[0053] In some embodiments of this application, the cooling water flow channel 111 is a sealed cavity or water-cooled wall disposed in the side wall 110 of the pre-storage chamber 11.

[0054] In this embodiment, the water-cooled wall is composed of several rows of steel pipes, with a flowing cooling medium inside the pipes. The function of the water-cooled wall is to absorb the heat of the red-hot coke using the medium inside the water-cooled wall, thereby reducing the temperature of the side wall 110 of the pre-storage chamber 11. This can protect the furnace wall of the dry quenching furnace during the coke cooling process. The pipe wall of the water-cooled wall is the directly heated part, and the interior of the water-cooled wall can be filled with flowing water or gas to exchange heat with the red-hot coke. In this embodiment, the inner wall of the water-cooled wall can be filled with flowing cooling water. Specifically, the water-cooled wall includes a bare tube water-cooled wall and a membrane water-cooled wall. Preferably, in this embodiment, a membrane water-cooled wall can be selected first. The membrane water-cooled wall is welded from seamless steel tubes with fins. The water-cooled wall tubes are connected by fins, making the water-cooled wall a whole. This structure can enhance the heat transfer of the water-cooled wall and greatly reduce the temperature of the furnace wall. Compared with other types of water-cooled walls, it is lighter and has better sealing performance. Applying the membrane water-cooled wall to the side wall 110 of the pre-storage chamber 11 can reduce the probability of cooling water leakage, thereby enabling the cooling water to fully exchange heat with the red coke and improving the heat exchange efficiency between the cooling water and the red coke.

[0055] like Figure 4 and Figure 5 As shown, in some embodiments of this application, the cooling device for dry quenching coke further includes an inlet pipe 41 and an outlet pipe 42 connected to the pre-storage chamber 11. Gas for cooling the red-hot coke flows through the inlet pipe 41, and the outlet pipe 42 is used to discharge the gas after heat exchange.

[0056] In this embodiment, the circulating gas can enter the pre-storage chamber 11 through the inlet pipe 41. After the circulating gas exchanges heat with the high-temperature red coke, the circulating gas after heat exchange can be discharged from the pre-storage chamber 11 through the outlet pipe 42. Increasing the circulating gas in the cooling device to cool the red coke can further cool the red coke on the basis of water cooling, which can lower the temperature of the red coke more quickly, thereby improving the cooling efficiency of the red coke in the dry quenching furnace 10.

[0057] In some embodiments of this application, the cooling device for dry quenching coke further includes: a dry quenching boiler 40 connected to the other end of the air inlet pipe 41 and the air outlet pipe 42, and a circulating fan 43 disposed between the dry quenching boiler 40 and the dry quenching furnace 10. The circulating fan is connected to a heat exchanger 44 at one end near the dry quenching furnace 10. The water in the dry quenching boiler 40 exchanges heat with the gas to cool the gas. The cooled gas is pressurized by the circulating fan 43 and then transported to the dry quenching furnace 10 after heat exchange by the heat exchanger 44.

[0058] In this embodiment, the circulating gas in the dry quenching furnace 10, after exchanging heat with the red-hot coke, carries a large amount of heat and enters the dry quenching boiler 40 through the outlet pipe 42 for cooling. The dry quenching boiler 40 absorbs the heat in the circulating gas to generate steam for use in turbines, etc. The cooled circulating gas re-enters the dry quenching furnace 10 through the inlet pipe 41 to cool the red-hot coke. Cooling the circulating gas lowers its temperature, allowing for better heat exchange with the red-hot coke and thus improving the cooling efficiency of the red-hot coke. The outlet pipe 42 of the dry quenching furnace 10 is connected to the inlet of the circulating fan 43. After being pressurized by the circulating fan 43, the circulating gas enters the dry quenching boiler 40. The circulating fan 43 provides the power source for the circulating gas to flow into the dry quenching furnace 10, thereby accelerating the circulation process and allowing the cooled circulating gas to enter the dry quenching furnace 10 as quickly as possible to cool the red-hot coke, thus improving the cooling efficiency of the red-hot coke.

[0059] The circulating fan 43 can be located on the side close to the dry quenching boiler 40 to accelerate the discharge speed of the circulating gas from the dry quenching boiler, so that the circulating gas can quickly enter the dry quenching furnace 10 under the action of the circulating fan, reduce the heat loss during the flow of the circulating gas, and thus improve the cooling efficiency of the red coke.

[0060] In this embodiment, a heat exchanger 44 is provided on the air inlet pipe 41, and the circulating fan 43 is connected to the heat exchanger 44. The gas pressurized by the circulating fan 43 enters the heat exchanger 44 for further cooling, thereby lowering the temperature of the circulating gas entering the dry quenching furnace 10 to a temperature that can fully cool the red coke, thereby improving the heat exchange efficiency of the dry quenching furnace 10 and thus achieving a better cooling effect on the red coke inside the dry quenching furnace 10.

[0061] The second aspect of this application provides a dry quenching furnace. The pre-storage chamber 11 of the dry quenching furnace 10 has a cooling water flow channel 111 on its side wall. The cooling water flow channel 111 includes an inlet 112 and an outlet 113. The inlet 113 is connected to an external cooling water tank 20 through an inlet pipe 21. The cooling water stored in the external cooling water tank 20 flows into the cooling water flow channel 111 through the inlet pipe 21 and the inlet 112, and is discharged through the outlet 113 after heat exchange in the cooling water flow channel 111.

[0062] In this embodiment, the red-hot coke in the pre-storage chamber 11 is cooled by cooling water flowing through the cooling water circulation channel 111, i.e., water cooling. Because water has a high specific heat capacity, it can absorb a large amount of heat when the temperature is raised, thus providing a better cooling effect and improving the cooling efficiency of the red-hot coke. Water cooling also has the advantage of quiet operation. Compared with the traditional dry quenching process that uses circulating gas for cooling (air cooling), the cooling water directly exchanges heat with the red-hot coke, eliminating the step of the circulating gas exchanging heat with water in the boiler for cooling. It also eliminates the need for other media to transfer heat from the red-hot coke to the cooling water, reducing heat loss during intermediate heat exchange, resulting in higher heat exchange efficiency and a simpler structure.

[0063] A third aspect of this application provides a dry quenching system, which includes a cooling device for the dry quenching process.

[0064] In this embodiment, the dry quenching system further includes a first dust collector 45 and a second dust collector 46. The first dust collector 45 is located between the dry quenching furnace 10 and the dry quenching boiler 40, and the second dust collector 46 is located between the dry quenching boiler 40 and the circulating fan 43. The first dust collector 45, located between the dry quenching furnace 10 and the dry quenching boiler 40, removes coarse coke powder or lumps from the circulating gas discharged from the outlet pipe 42 through gravity settling, thus performing the first cleaning of the circulating gas after heat exchange. The second dust collector 46, located between the dry quenching boiler 40 and the circulating fan 43, further removes smaller dust particles from the cooled circulating gas discharged from the dry quenching boiler 40, which is then pressurized and sent back to the dry quenching furnace 10 for recirculation by the circulating fan 43. Using the first dust collector 45 and the second dust collector 46 to remove dust from the circulating gas keeps it clean and prevents pipe blockage.

[0065] The above description is merely a preferred embodiment of this application and is not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application are included within the scope of protection of this application.

Claims

1. A quenching device for dry quenching, characterized in that, The application relates to a cooling device for dry quenching coke, which comprises the following parts: a cooling water flow channel (111) and a cooling water tank (20); wherein the cooling water flow channel (111) is arranged in a side wall (110) of a pre-storage chamber (11) of a dry quenching coke furnace (10); the cooling water flow 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 water outlet (113) is connected with a water outlet pipeline (22); cooling water stored in the cooling water tank (20) flows into the cooling water flow channel (111) through the water inlet pipeline (21) and the water inlet (112), is discharged through the water outlet (113) after heat exchange in the cooling water flow channel (111), steam generated by heat exchange between the cooling water and red coke, and one end of the water outlet pipeline (22) far away from the water outlet (113) can be connected with different gas using devices according to actual needs, and steam generated in the heat exchange process is recycled. The pre-storage chamber (11) of the dry quenching coke furnace (10) has an inner wall (120) and an outer wall (130); the side wall (110) of the pre-storage chamber (11) comprises the inner wall (120) and the outer wall (130), the inner wall (120) is located on the side of the side wall (110) close to red hot coke, and the outer wall (130) is arranged on the side of the inner wall (120) far away from the red hot coke.

2. The coke dry quenching cooling device according to claim 1, characterized in that The water inlet pipeline (21) is provided with a flow meter (211) and an adjusting valve (212); and / or the water outlet pipeline (22) is provided with the flow meter (211) and the adjusting 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 adjusting valve (212) is used for adjusting the flow of the cooling water according to the flow detected by the flow meter (211).

3. The quenching device for dry quenching according to claim 2, characterized in that, The side wall forming the cooling water flow channel (111) and the inner wall of the water inlet pipeline (21) and the water outlet pipeline (22) are all provided with a corrosion-resistant high-temperature-resistant coating.

4. The dry quenching cooling device according to any one of claims 1-3, characterized in that, The cooling device for dry quenching coke further comprises a cooling water pump (30), and the cooling water pump (30) is arranged between the cooling water tank (20) and the water inlet (112).

5. The dry quenching cooling device according to any one of claims 1-3, 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).

6. The dry quenching cooling device according to any one of claims 1-3, characterized in that, The cooling device for dry quenching coke further comprises an air inlet pipeline (41) and an air outlet pipeline (42) communicated with the pre-storage chamber (11), the air inlet pipeline (41) is used for circulating gas for cooling red coke, and the air outlet pipeline (42) is used for discharging the heat-exchanged gas.

7. The dry quenched cooling device according to claim 6, characterized in that The dry quenching cooling device further comprises a dry quenching boiler (40) in communication with the other end of the air inlet pipeline (41) and the air outlet pipeline (42), and a circulating fan (43) arranged between the dry quenching boiler (40) and the dry quenching furnace (10), wherein the circulating fan (43) is in communication with a heat exchanger (44) at one end close to the dry quenching furnace (10), and water in the dry quenching boiler (40) exchanges heat with the gas to cool the gas, the cooled gas is pressurized by the circulating fan (43), and then is delivered into the dry quenching furnace (10) after heat exchange in the heat exchanger (44).

8. A dry quenching furnace, characterized in that The dry quenching system comprises the dry quenching cooling device according to any one of claims 1-7. The side wall (110) of the pre-storage chamber (11) of the dry quenching furnace (10) is provided with a cooling water flow passage (111); The cooling water flow passage (111) comprises a water inlet (112) and a water outlet (113); the water inlet (112) is in communication 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 pipeline (21) and the water inlet (112), and is discharged through the water outlet (113) after heat exchange in the cooling water flow passage (111).

9. A dry quenching system, characterized in that, The dry quenching system comprises the dry quenching cooling device according to any one of claims 1-7.

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