Coke fines recovery device and coke dry quenching system

Abstract

An embodiment of the present application provides a coke powder recovery device and a dry quenching coke system. The coke powder recovery device includes a device main body and a driving device. The device main body includes a housing and a spiral guiding structure. The housing includes a first end and a second end. The housing includes a first chamber and a second chamber. The second chamber is separated from the first chamber. A cooling pipe is arranged in the second chamber. The cooling pipe is used for allowing a coolant to pass through to cool the coke powder in the first chamber. The spiral guiding structure is arranged in the first chamber. The spiral guiding structure is used for guiding the coke powder to move from the first end to the second end in the first chamber. The driving device is used for driving the housing and the spiral guiding structure to rotate synchronously or the spiral guiding structure to rotate relative to the housing.

Description

Technical Field

[0001] This application relates to the coking field, and particularly to a coke powder recovery device and a coke dry quenching system. Background Art

[0002] The coke dry quenching technology utilizes inert gas to absorb the sensible heat of red coke, so as to cool the refined red-hot coke to a temperature convenient for transportation and storage. Compared with wet coke quenching, coke dry quenching has outstanding advantages such as energy conservation and environmental protection, and is therefore widely used in the modern coking industry.

[0003] In the related art, the coke dry quenching system mainly includes equipment such as a coke dry quenching furnace, a dust collector, a boiler, a blower, etc. and other related auxiliary facilities. In the coke dry quenching system, the function of the dust collector is to remove coke powder in the circulating gas. After the coke powder is separated by the dust collector, it will enter the coke powder recovery device at the lower part of the dust collector. The coke powder recovery device mainly consists of a buffer bin, a cooling sleeve, and a dust discharge valve. Specifically, a large amount of coke powder carried in the circulating gas is slowed down by the retaining wall of the primary dust collector and enters the buffer bin, and then is discharged after being cooled by the cooling sleeve. The cooling sleeve is arranged vertically, and the coke powder falls by gravity in the cooling sleeve. However, when there is an included angle between the pipe sections in the cooling sleeve, the coke powder is extremely likely to stack in the cooling sleeve, resulting in problems such as coke powder caking and blockage in the pipeline. Summary of the Invention

[0004] The purpose of the embodiments of this application is to provide a coke powder recovery device and a coke dry quenching system to reduce the probability of coke powder caking and blockage in the coke powder recovery device. The specific technical solutions are as follows:

[0005] An embodiment of the first aspect of this application provides a coke powder recovery device, including a device main body. The device main body includes a housing and a spiral guiding structure. The housing includes a first end and a second end. The housing includes a first chamber and a second chamber. The second chamber is separated from the first chamber. A cooling pipe is arranged in the second chamber. The cooling pipe is used for coolant to pass through to cool the coke powder in the first chamber. The spiral guiding structure is arranged in the first chamber. The spiral guiding structure is used to guide the coke powder to move from the first end to the second end in the first chamber. A driving device is used to drive the housing and the spiral guiding structure to rotate synchronously or the spiral guiding structure to rotate relative to the housing.

[0006] According to the coke recovery device of the embodiment of the present application, the drive device is used to drive the housing and the spiral guide structure to rotate synchronously or the spiral guide structure to rotate relative to the housing. When the spiral guide structure rotates, the coke in the first chamber will move relative to the rotating spiral guide structure under the action of friction and gravity, thereby being transported from the first end of the housing to the second end of the housing along the spiral line of the spiral guide structure, completing the recovery of the coke. In the embodiment of the present application, the coke does not need to rely on gravity to fall during recovery. Instead, the coke is transported by the rotating spiral guide structure, which is equivalent to applying a driving force to the coke. As a result, the coke is less likely to become compacted and blocked during the recovery process. In addition, in the embodiment of the present application, the housing also includes a second chamber, and a cooling pipe is provided in the second chamber. When the coke moves from the first end to the second end in the first chamber, the coolant in the cooling pipe continuously absorbs the heat of the coke, thereby recovering the heat of the coke and improving the heat utilization rate of the coke, and fully cooling the coke to facilitate the recovery of the coke.

[0007] In some embodiments of the present application, the spiral guide structure includes spiral blades, multiple spiral blades are fixed on the inner wall of the first chamber, and the multiple spiral blades are spirally distributed along the axial direction of the shell in the first chamber, and the driving device is connected to the shell, and the driving device is used to drive the shell to rotate.

[0008] In some embodiments of the present application, the coke powder recovery device further includes an input part and an output part, wherein the input part is rotatably mounted on the first end of the shell, and the input part is used to connect the first chamber with the dust collector of the dry quenching system; the output part is rotatably mounted on the second end of the shell, and the output part is used to connect the first chamber with the coke powder bin of the dry quenching system.

[0009] In some embodiments of the present application, the input part and the output part are tubular structures, the coke powder recovery device also includes a first mechanical sealing component and a second mechanical sealing component, the first mechanical sealing component includes a first static ring and a first dynamic ring, the input part is connected to the first static ring, and the first end of the shell is connected to the first dynamic ring; the second mechanical sealing component includes a second static ring and a second dynamic ring, the output part is connected to the second static ring, and the second end of the shell is connected to the second dynamic ring.

[0010] In some embodiments of the present application, the driving device includes a first gear, a second gear and a motor, the first gear is sleeved on the outside of the shell, the second gear is engaged with the first gear, and the motor is transmission connected to the second gear.

[0011] In some embodiments of the present application, the coke powder recovery device further includes a supporting device, and the housing is mounted on an external device through the supporting device. The supporting device includes a girth gear and a roller assembly.

[0012] In some embodiments of the present application, the spiral guiding structure includes a rotating shaft and spiral blades arranged on the rotating shaft. The rotating shaft is rotatably arranged in the first chamber, the axis of the rotating shaft is parallel to the axis of the housing, the spiral blades are spirally distributed along the axis direction of the rotating shaft, the driving device is connected to the rotating shaft, and the driving device is used to drive the rotating shaft to rotate relative to the housing.

[0013] In some embodiments of the present application, the coke powder recovery device further includes an input part and an output part. The input part is fixedly installed at the first end of the housing, and the input part is used to communicate the first chamber with the dust collector of the coke dry quenching system; the output part is fixedly installed at the second end of the housing, and the output part is used to communicate the first chamber with the coke powder bin of the coke dry quenching system.

[0014] In some embodiments of the present application, the housing is a sleeve structure, and the housing includes an inner cylinder and an outer cylinder. The inner cylinder and the outer cylinder are coaxial and fixedly connected. The space inside the inner cylinder serves as the first chamber, and the second chamber is defined between the inner cylinder and the outer cylinder. The cooling pipeline is arranged between the inner cylinder and the outer cylinder.

[0015] An embodiment of the second aspect of the present application provides a coke dry quenching system. The coke dry quenching system includes: a coke dry quenching furnace, a dust collector, a boiler, and the coke powder recovery device according to the embodiments of the first aspect. Among them, the dust collector is used to separate the coke powder in the high-temperature gas from the coke dry quenching furnace. The air outlet of the coke dry quenching furnace is communicated with the air inlet of the dust collector, the air inlet of the boiler is communicated with the air outlet of the dust collector, and the first end of the coke powder recovery device is communicated with the ash hopper of the dust collector, so that the coke powder separated by the dust collector falls into the coke powder recovery device.

[0016] According to the coke dry quenching system in the embodiments of the present application, since it has the boiler feed water device in any embodiment of the first aspect, therefore, it also has the beneficial effects of any embodiment of the first aspect, which will not be elaborated here.

[0017] Of course, it is not necessary for any product implementing the present application to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other accompanying drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic structural diagram of a coke fines recovery device in the related art;

[0020] Figure 2 It is a schematic connection diagram of a coke dry quenching system according to the first embodiment of the present application;

[0021] Figure 3 It is a schematic structural diagram of the coke fines recovery device according to the first perspective of the embodiment of the present application;

[0022] Figure 4 It is a schematic structural diagram of the coke fines recovery device according to the second perspective of the embodiment of the present application;

[0023] Figure 5 It is a schematic connection diagram of a coke dry quenching system according to the second embodiment of the present application.

[0024] In the figure: 10, coke dry quenching system; 100, coke fines recovery device; 110, device main body; 111, housing; 1111, first end; 1112, second end; 1113, first chamber; 11 l4, second chamber; 1115, inner cylinder; 1116, outer cylinder; 112, spiral guiding structure; 1121, spiral blade; 120, driving device; 121, first gear; 122, second gear; 123, motor; 130, input part; 131, input valve; 140, output part; 141, output valve; 150, cooling pipeline; 151, main pipe; 152, pipe row; 153, water inlet; 154, water outlet; 160, supporting device; 161, tyre; 162, supporting roller assembly; 200, dust collector; 210, ash hopper; 220, retaining wall; 300, coke dry quenching furnace; 400, boiler; 500, secondary dust collector; 600, circulation fan; 700, heat exchanger; 90, coke fines recovery device; 91, buffer bin; 92, cooling sleeve; 93, ash discharge valve. Detailed implementation manners

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, rather than all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art based on the present application belong to the scope of protection of the present application.

[0026] As Figure 1As shown, in the related art, the coke powder recovery device 90 mainly consists of a buffer bin 91, a cooling sleeve 92, and an ash discharge valve 93. The cooling sleeve 92 is vertically arranged, and the coke powder falls by gravity in the cooling sleeve 92. If there is an angle between the pipe segments in the cooling sleeve 92, the coke powder is very likely to stack in the cooling sleeve 92, resulting in problems such as coke powder caking and blockage in the pipeline.

[0027] In view of this, as Figures 2 to 4 shown, an embodiment of the first aspect of the present application provides a coke powder recovery device 100, which includes a device main body 110 and a driving device 120. The device main body 110 includes a housing 111 and a spiral guiding structure 112. The housing 111 includes a first end 1111 and a second end 1112. The housing 111 includes a first chamber 1113 and a second chamber 1114. The second chamber 1114 is separated from the first chamber 1113. A cooling pipe 150 is arranged in the second chamber 1114 for the coolant to pass through to cool the coke powder in the first chamber 1113. The spiral guiding structure 112 is arranged in the first chamber 1113 and is used to guide the coke powder to move from the first end 1111 to the second end 1112 in the first chamber 1113. The driving device 120 is used to drive the housing 111 and the spiral guiding structure 112 to rotate synchronously or the spiral guiding structure 112 to rotate relative to the housing 111.

[0028] According to the coke powder recovery device 100 of the embodiment of the present application, the driving device 120 is used to drive the housing 111 and the spiral guiding structure 112 to rotate synchronously or the spiral guiding structure 112 to rotate relative to the housing 111. When the driving device 120 drives the spiral guiding structure 112 to rotate, the coke powder in the first chamber 1113 will move relative to the rotating spiral guiding structure 112 under the action of friction and gravity, and thus be transported from the first end 1111 of the housing 111 to the second end 1112 of the housing 111 along the spiral line of the spiral guiding structure 112, completing the recovery of the coke powder. In the embodiment of the present application, the coke powder does not need to fall by gravity during recovery, but is transported by the rotating spiral guiding structure 112, which is equivalent to applying a driving force to the coke powder. Therefore, the coke powder is not likely to cake and block during the recovery process.

[0029] In addition, in the embodiment of the present application, the housing 111 further includes a second chamber 1114, and a cooling pipe 150 is disposed in the second chamber 1114. When the coke powder moves from the first end 1111 to the second end 1112 in the first chamber 1113, the coolant in the cooling pipe 150 continuously absorbs the heat of the coke powder, so that the heat of the coke powder can be recovered, the heat utilization rate of the coke powder can be improved, and the coke powder can be fully cooled, facilitating the recovery of the coke powder. In the related art, the inner pipe of the cooling sleeve 92 is used for the falling of the coke powder, and the coolant passes between the inner pipe and the outer pipe of the cooling sleeve 92. Affected by the quality of the coolant, the cooling sleeve 92 is prone to problems such as scaling and open weld cracking, thus affecting the recovery of the coke powder. In the embodiment of the present application, the cooling pipe 150 is disposed in the second chamber 1114. Since the second chamber 1114 is separated from the first chamber 1113 and the coke powder is transported by the spiral guiding structure 112 located in the first chamber 1113, the state of the cooling sleeve 150 will not affect the transportation of the coke powder, thereby improving the use stability of the coke powder recovery device 100.

[0030] In addition, in the related art, since the coke powder falls by gravity, the angle between all pipe sections of the cooling sleeve 92 and the horizontal direction needs to be greater than the angle of repose of the falling coke powder. The angle of repose refers to the maximum angle measured when the gravity and the friction between particles reach equilibrium and the particles are in a static state on the free slope of the powder accumulation layer in the gravitational field. In the embodiment of the present application, since the coke powder is transported by the rotating spiral guiding structure 112, when arranging the coke powder recovery device 100, there is no need to consider the angle of repose, and the arrangement is more flexible and convenient.

[0031] Such as Figure 4As shown, in some embodiments of the present application, the spiral guiding structure 112 includes spiral vanes 1121. A plurality of spiral vanes 1121 are fixed on the inner wall of the first chamber 1113, and the plurality of spiral vanes 1121 are spirally distributed in the first chamber 1113 along the axis direction of the housing 111. The driving device 120 is connected to the housing 111, and the driving device 120 is used to drive the housing 111 to rotate. In the embodiments of the present application, the spiral vanes 1121 are directly fixed on the inner wall of the first chamber 1113, and the plurality of spiral vanes 1121 are spirally distributed in the first chamber 1113 along the axis direction of the housing 111. When the spiral vanes 1121 rotate, the coke powder in the first chamber 1113 will move relative to the rotating spiral vanes 1121 under the action of friction and gravity, and thus is conveyed from the first end 1111 of the housing 111 to the second end 1112 of the housing 111 along the spiral line of the plurality of spiral vanes 1121, completing the recovery of the coke powder. In the embodiments of the present application, the spiral vanes 1121 are directly fixed on the inner wall of the first chamber 1113, that is to say, the spiral vanes 1121 and the housing 111 are fixedly connected. By driving the housing 111 to rotate through the driving device 120, the spiral vanes 1121 can be rotated. Thus, it is convenient for the arrangement of the driving device 120 and the structure of the housing 111 is simple.

[0032] As Figure 3 shown, in some embodiments of the present application, the coke powder recovery device 100 further includes an input part 130 and an output part 140. The input part 130 is rotatably installed at the first end 1111 of the housing 111, and the input part 130 is used to communicate the first chamber 1113 with the dust collector 200 of the dry coke quenching system 10. The output part 140 is rotatably installed at the second end 1112 of the housing 111, and the output part 140 is used to communicate the first chamber 1113 with the coke powder bin of the dry coke quenching system 10. In the embodiments of the present application, the coke powder in the dust collector 200 first enters the coke powder recovery device 100 through the input part 130 at the first end 1111, and then is transported by the coke powder recovery device 100 from the first end 1111 to the second end 1112. Finally, the coke powder enters the coke powder bin through the output part 140 at the second end 1112, completing the recovery of the coke powder. Considering that when the coke powder recovery device 100 in the embodiments of the present application is in use, the driving device 120 drives the housing 111 to rotate so that the spiral guiding structure 112 rotates, that is to say, when the coke powder recovery device 100 is in use, the housing 111 is in a rotating state, while the input part 130 and the output part 140 need to be in a static state. Therefore, the input part 130 and the output part 140 are respectively rotatably installed on the housing 111, so that the housing 111 can rotate relative to the input part 130 and the output part 140, so that the input part 130 and the output part 140 can remain static when the housing 111 rotates and do not rotate with the housing 111.

[0033] In some embodiments of the present application, the input portion 130 and the output portion 140 are tubular structures, and the coke recovery device 100 further includes a first mechanical seal component and a second mechanical seal component. The first mechanical seal component includes a first stationary ring and a first dynamic ring. The input portion 130 is connected to the first stationary ring, and the first end 1111 of the housing 111 is connected to the first dynamic ring. The second mechanical seal component includes a second stationary ring and a second dynamic ring. The output portion 140 is connected to the second stationary ring, and the second end 1112 of the housing 111 is connected to the second dynamic ring. In the embodiment of the present application, when the housing 111 rotates, the first stationary ring and the first dynamic ring are tightly fitted and slide relative to each other, while the second stationary ring and the second dynamic ring are tightly fitted and slide relative to each other. Thus, the provision of the first and second mechanical seal components not only allows the input portion 130 and the output portion 140 to be rotatably mounted on the housing 111, but also improves the sealing performance of the entire coke recovery device 100, thereby facilitating coke recovery.

[0034] In the related art, since coke powder mainly falls by gravity, in order to meet the demand for coke powder discharge, the cooling sleeve 92 has a large volume and a large diameter, which makes the diameter of the connecting flange between the cooling sleeve 92 and the buffer bin 91 large, resulting in difficulty in sealing the connecting flange, and prone to equipment burning caused by improper discharge control and air leakage due to poor sealing of the connecting flange. In addition, due to the large diameter of the connecting flange, the connecting flange needs to be customized, which makes equipment maintenance difficult. In the embodiment of the present application, since the coke powder is transported by the rotating spiral guide structure 112, the coke powder discharge amount can be increased or decreased by adjusting the rotation speed of the spiral guide structure 112, thereby facilitating the control of the coke powder discharge amount to meet production needs. Furthermore, the coke powder recovery device in the embodiment of the present application is small in size, and the diameter of the connection between the input part 130 and the dust collector 200 is small, so a standard flange can be used directly, which is convenient for sealing and maintenance, and has low maintenance costs.

[0035] like Figure 2 and Figure 3 As shown, in some embodiments of the present application, an input valve 131 is provided on the input portion 130, and an output valve 141 is provided on the output portion 140, thereby controlling the on / off of the input portion 130 and the output portion 140. In a specific embodiment, the input valve 131 and the output valve 141 can be electric valves, thereby facilitating operation.

[0036] In a specific embodiment, during normal production, the input valve 131 and the output valve 141 are opened, and the coke powder from the dust collector 200 enters the first chamber 1113 of the shell 111 through the input part 130. Under the action of the driving device 120, the spiral guide mechanism 112 in the first chamber 1113 rotates, thereby transporting the coke powder from the first end 1111 to the second end 1112 in the first chamber 1113. During the transportation of the coke powder, the coolant in the cooling pipe 150 located in the second chamber 1114 exchanges heat with the coke powder to cool the coke powder. The cooled coke powder is discharged to the coke powder bin of the dry quenching system 10 through the output part 140.

[0037] like Figure 4 As shown, in some embodiments of the present application, the drive device 120 includes a first gear 121, a second gear 122, and a motor 123. The first gear 121 is mounted on the exterior of the housing 111, the second gear 122 meshes with the first gear 121, and the motor 123 is in transmission connection with the second gear 122. In this embodiment of the present application, the motor 123 drives the second gear 122 to rotate, thereby driving the first gear 121 to rotate, which in turn rotates the housing 111. The rotation of the housing 111 rotates the spiral guide structure 112 fixed to the inner wall of the first chamber 1113. This simple drive method is easy to set up and control. During use, the speed of the spiral guide structure 112 can be changed by adjusting the speed of the motor 123, thereby adjusting the transport speed of the coke powder and aligning the transport volume of the coke powder with the production plan of the dry quenching system 10.

[0038] In a specific embodiment of the present application, the motor 123 is a stepless speed regulation motor. Thus, the speed of the spiral guide structure 112 can be precisely adjusted by adjusting the speed of the motor 123, thereby more accurately controlling the transport speed of the coke powder and making the transport volume of the coke powder better adapted to the production plan of the dry quenching system 10.

[0039] In other embodiments of the present application, the driving device 120 may include a first gear 121, a second gear 122, and a pneumatic motor, wherein the first gear 121 is fixed to the housing 111, the second gear 122 is meshed with the first gear 121, and the pneumatic motor is in transmission connection with the second gear 122. Alternatively, the driving device 120 may include a first gear 121, a second gear 122, and a hydraulic motor, wherein the first gear 121 is fixed to the housing 111, the second gear 122 is meshed with the first gear 121, and the pneumatic motor is in transmission connection with the second gear 122.

[0040] In other embodiments of the present application, the driving device 120 may include a first gear 121, a second gear 122, a rack, and a motor 123. The first gear 121 is fixed on the housing 111. The motor 123 is drivingly connected to the second gear 122. The second gear 122 meshes with the rack, and the rack meshes with the first gear 121. By mounting the rack on an external device, the rack can be used to support the rotating housing 111.

[0041] As Figure 3 shown, in some embodiments of the present application, the coke powder recovery device 100 further includes a support device 160. The support device 160 includes a tyre 161 and a supporting roller assembly 162. The housing 111 is mounted on an external device through the support device 160. Thus, the rotating housing 111 can be supported. Specifically, two tyres 161 are arranged at intervals outside the housing 111. Two supporting roller assemblies 162 are fixed on the external device. The two supporting roller assemblies 162 correspond to the two tyres 161 in position, so that the supporting roller assemblies 162 are in supporting contact with the corresponding tyres 161, thereby ensuring the stable rotary motion of the housing 111.

[0042] In a specific embodiment, the supporting roller assembly 162 may include a base, a supporting roller shaft, a supporting roller, and a rolling bearing, etc. The base is used to be fixed on the external device. The supporting roller is connected to the supporting roller shaft through the rolling bearing, so that the supporting roller can rotate relative to the supporting roller shaft, thereby ensuring the stable rotary motion of the tyre 161 and the housing 111 through the rotation of the supporting roller.

[0043] In some embodiments of the present application, the spiral guiding structure 112 includes a rotating shaft and spiral blades 1121 arranged on the rotating shaft. The rotating shaft is rotatably arranged in the first chamber 1113. The axis of the rotating shaft is parallel to the axis of the housing 111. The spiral blades 1121 are spirally distributed along the axis direction of the rotating shaft. The driving device 120 is connected to the rotating shaft, and the driving device 120 is used to drive the rotating shaft to rotate relative to the housing 111. According to the coke powder recovery device 100 of the embodiments of the present application, the driving device 120 is connected to the rotating shaft, and the driving device 120 drives the rotating shaft to rotate, thereby driving the spiral blades 1121 on the rotating shaft to rotate. When the spiral blades 1121 rotate, the coke powder in the first chamber 1113 will move relative to the rotating spiral blades 1121 under the action of friction and gravity, and thus be conveyed from the first end 1111 of the housing 111 to the second end 1112 of the housing 111 along the spiral line of the spiral blades 1121, completing the recovery of the coke powder. The rotating shaft can be connected to the housing 111 through bearings, so that the rotating shaft can rotate relative to the housing 111, and the driving method is simple.

[0044] In some embodiments of the present application, the coke powder recovery device 100 further includes an input part 130 and an output part 140. The input part 130 is fixedly installed at the first end 1111 of the housing 111, and the input part 130 is used to connect the first chamber 1113 with the dust collector 200 of the dry coke quenching system 10. The output part 140 is fixedly installed at the second end 1112 of the housing 111, and the output part 140 is used to connect the first chamber 1113 with the coke powder bin of the dry coke quenching system 10. In the embodiments of the present application, the coke powder in the dust collector 200 first enters the first end 1111 of the coke powder recovery device 100 through the input part 130, and then is transported by the coke powder recovery device 100 from the first end 1111 to the second end 1112. Finally, the coke powder enters the coke powder bin through the output part 140 at the second end 1112, completing the recovery of the coke powder. Since the housing 111 is in a stationary state during use, the input part 130 can be directly fixed to the first end 1111 of the housing 111, and the output part 140 can be fixed to the second end 1112 of the housing 111, and the connection method is simple.

[0045] In some embodiments of the present application, the driving device 120 includes a motor 123, and the output shaft of the motor 123 is connected to the rotating shaft, so that the motor 123 can directly drive the rotating shaft to rotate. During use, the rotation speed of the rotating shaft can be adjusted by adjusting the rotation speed of the motor 123, so as to adjust the transportation speed of the coke powder and control the discharge amount of the coke powder to match the production plan.

[0046] In some embodiments of the present application, the housing 111 is of a sleeve structure. The housing 111 includes an inner cylinder 1115 and an outer cylinder 1116. The inner cylinder 1115 and the outer cylinder 1116 are coaxial and fixedly connected. The space inside the inner cylinder 1115 serves as the first chamber 1113, and a second chamber 1114 is defined between the inner cylinder 1115 and the outer cylinder 1116. The cooling pipe 150 is arranged between the inner cylinder 1115 and the outer cylinder 1116, and the cooling pipe 150 is used for passing coolant. According to the coke powder recovery device 100 of the embodiments of the present application, the first chamber 1113 is formed inside the inner cylinder 1115 of the housing 111, and the spiral guiding structure 112 is arranged inside the inner cylinder 1115 of the housing 111. The spiral guiding structure 112 can transport the coke powder from the first end 1111 to the second end 1112 in the inner cylinder 1115 by rotation. A second chamber 1114 is defined between the inner cylinder 1115 and the outer cylinder 1116 of the housing 111, and the cooling pipe 150 is arranged between the inner cylinder 1115 and the outer cylinder 1116. When the coke powder is transported from the first end 1111 to the second end 1112 in the inner cylinder 1115, the coolant in the cooling pipe 150 continuously absorbs the heat of the coke powder. Thus, the structure of the housing 111 is relatively simple, facilitating processing and manufacturing.

[0047] In a specific embodiment, the coolant is low-temperature demineralized water, which can be used to absorb heat in the boiler 400 of the coke dry quenching system 10 to generate steam, and the steam is used for power generation. In the embodiment of the present application, the low-temperature demineralized water absorbs the heat of the coke powder to raise the temperature. Thus, the heat of the coke powder can be effectively utilized, the heat utilization rate can be improved, and energy can be saved.

[0048] In some embodiments of the present application, the cooling pipe 150 is always in a stationary state. When the spiral blade 1121 is fixed on the inner wall of the first chamber 1113 and the driving device 120 is used to drive the housing 111 to rotate, the second chamber 1114 of the housing 111 may be open at the second end 1112. The cooling pipe 150 is arranged in the second chamber 1114. The cooling pipe 150 may not be connected to the housing 111 and is fixed to an external device. In this way, when the housing 111 rotates, the cooling pipe 150 remains stationary. Alternatively, the second chamber 1114 of the housing 111 is provided with an end cap at the second end 1112. The end cap and the housing 111 are connected by a mechanical seal device to achieve dynamic seal connection, so that when the housing 111 rotates, the end cap remains stationary. The cooling pipe 150 is fixed to an external device and enters the second chamber 1114 through the end cap. The cooling pipe 150 is not connected to the housing 111. In this way, when the housing 111 rotates, the cooling pipe 150 remains stationary.

[0049] In some embodiments of the present application, the cooling pipe 150 is always in a stationary state. When the spiral guiding structure 112 includes a rotating shaft and spiral blades 1121 arranged on the rotating shaft, and the driving device 120 is used to drive the rotating shaft to rotate, since the housing 111 does not rotate at this time and the housing 111 is always in a stationary state, the cooling pipe 150 can be directly fixed to the housing 111.

[0050] As Figure 3As shown, in some embodiments of the present application, the cooling pipe 150 includes a main pipe 151 and a pipe row 152. The main pipe 151 is located outside the housing 111 and can be fixed to an external device. The pipe row 152 is located in the second chamber 1114 of the housing 111. The main pipe 151 is in the form of a sleeve. Specifically, the main pipe 151 includes an inner pipe and an outer pipe. The channel between the inner pipe and the outer pipe is an inter-pipe channel, which is communicated with the water inlet 153. The channel inside the inner pipe is an inner-pipe channel, which is communicated with the water outlet 154. One end of the pipe row 152 is communicated with the inner-pipe channel, and the other end of the pipe row 152 is communicated with the inter-pipe channel. The coolant first flows into the inter-pipe channel of the main pipe 151 through the water inlet 153, then flows to the pipe row 152 through the inter-pipe channel, absorbs the heat of the coke powder in the first chamber 1113 in the pipe row 152, and finally enters the inner-pipe channel of the main pipe 151 and flows out through the water outlet 154. The pipe row 152 may include a plurality of pipe segments parallel to the axis of the housing 111. Thus, when the coolant flows in the pipe row 152, it can fully exchange heat with the coke powder in the first chamber 1113 to cool the coke powder, facilitating the recovery of the coke powder.

[0051] As Figure 2 and Figure 5 shown, an embodiment of the second aspect of the present application provides a coke dry quenching system 10. The coke dry quenching system 10 includes a coke dry quenching furnace 300, a dust collector 200, a boiler 400, and the coke powder recovery device 100 of the embodiment of the first aspect. Among them, the dust collector 200 is used to separate the coke powder from the high-temperature gas from the coke dry quenching furnace 300. The air outlet of the coke dry quenching furnace 300 is communicated with the air inlet of the dust collector 200. The air inlet of the boiler 400 is communicated with the air outlet of the dust collector 200. The first end 1111 of the coke powder recovery device 100 is communicated with the ash hopper 210 of the dust collector 200, so that the coke powder separated by the dust collector 200 falls into the coke powder recovery device 100.

[0052] In the embodiments of the present application, the inert gas absorbs the heat of the high-temperature coke in the coke dry quenching furnace 300 to become a high-temperature circulating gas. The high-temperature circulating gas enters the dust collector 200 and separates the coke powder carried therein in the dust collector 200. The separated high-temperature circulating gas enters the boiler 400 to exchange heat with the demineralized water, so that the demineralized water generates steam, and then the generated steam is used for power generation. The separated coke powder enters the coke powder recovery device 100.

[0053] According to the coke dry quenching system 10 of the embodiments of the present application, since it is equipped with the coke powder recovery device 100 in any of the embodiments of the first aspect, it also has the beneficial effects of any of the embodiments of the first aspect. Specifically, in the embodiments of the present application, the driving device 120 is used to drive the housing 111 and the spiral guiding structure 112 to rotate synchronously or the spiral guiding structure 112 to rotate relative to the housing 111. When the driving device 120 drives the spiral guiding structure 112 to rotate, the coke powder in the first chamber 1113 will move relative to the rotating spiral guiding structure 112 under the action of friction and gravity, and thus be conveyed from the first end 1111 of the housing 111 to the second end 1112 of the housing 111 along the spiral line of the spiral guiding structure 112, completing the recovery of coke powder. In the embodiments of the present application, the coke powder does not need to fall by gravity during recovery, but is conveyed by the rotating spiral guiding structure 112, which is equivalent to applying a driving force to the coke powder. Therefore, the coke powder is not prone to caking and blockage during the recovery process. In addition, in the embodiments of the present application, the housing 111 further includes a second chamber 1114, and a cooling pipe 150 is provided in the second chamber 1114. When the coke powder moves from the first end 1111 to the second end 1112 in the first chamber 1113, the coolant in the cooling pipe 150 continuously absorbs the heat of the coke powder, so that the heat of the coke powder can be recovered, the heat utilization rate of the coke powder can be improved, energy can be saved, and the coke powder can be fully cooled, facilitating the recovery of the coke powder.

[0054] In some embodiments of the present application, the coke dry quenching system 10 further includes a support frame for supporting the dust collector 200, and the coke powder recovery device 100 can be arranged on the support frame. Specifically, considering that the dust collector 200 is at a relatively high height from the ground and has a mass of up to 700 - 800 tons, a support frame for supporting the dust collector 200 is provided at the bottom of the dust collector 200. In the related art, since the coke powder mainly falls by gravity in the cooling sleeve 92, the cooling sleeve 92 can only be arranged vertically. When installing the coke powder recovery device 90, in order to avoid the support frame of the dust collector 200, it is first necessary to rotate the coke powder recovery device 90 to a horizontal state and push it into the lower part of the dust collector 200, and then rotate the coke powder recovery device 90 from the horizontal state to the vertical state for installation. The installation and maintenance of the coke powder recovery device 90 are relatively difficult. In the embodiments of the present application, since the coke powder is conveyed to the coke powder bin through the coke powder recovery device 100 and does not need to fall by gravity, the coke powder recovery device 100 of the embodiments of the present application can be flexibly arranged without the need for vertical arrangement. When installing the coke powder recovery device 100, it is not restricted by the vertical arrangement, so that the installation and maintenance of the coke powder recovery device 100 are relatively simple.

[0055] In a specific embodiment, the coke powder recovery device 100 is horizontally arranged, that is, the coke powder recovery device 100 can be a horizontal structure. When installing, the operator only needs to push the coke powder recovery device 100 into the bottom of the dust collector 200 in a horizontal state, and then fix it on a certain horizontal plane of the support frame of the dust collector 200. The installation is convenient and space-saving.

[0056] In some embodiments of the present application, the dust collector 200 is a gravity dust collector, and the dust collector 200 includes a retaining wall 220. After the high-temperature inert gas from the coke dry quenching furnace 300 enters the dust collector 200, the large amount of coke powder carried by it is decelerated under the action of the retaining wall 220, and thus falls into the hopper 210 at the bottom of the dust collector 200, and enters the coke powder recovery device 100 through the hopper 210.

[0057] In some embodiments of the present application, the dust collector 200 is a cyclone dust collector. Specifically, the high-temperature gas from the coke dry quenching furnace 300 enters the interior of the cyclone dust collector 200 from the tangential inlet of the cyclone dust collector 200. The high-temperature gas flow changes from linear motion to circular motion and generates centrifugal force. The coke powder is thrown towards the wall surface under the action of the centrifugal force and falls along the wall surface into the bottom hopper 210 of the dust collector 200, and finally enters the coke powder recovery device 100 through the bottom hopper 210.

[0058] In some embodiments of the present application, the coke dry quenching system 10 further includes a secondary dust collector 500, a circulating fan 600, and a heat exchanger 700. The air outlet of the boiler 400 is communicated with the air inlet of the secondary dust collector 500, the air outlet of the secondary dust collector 500 is communicated with the air inlet of the circulating fan 600, the air outlet of the circulating fan 600 is communicated with the air inlet of the heat exchanger 700, and the air outlet of the heat exchanger 700 is communicated with the air inlet of the coke dry quenching furnace 300. In the embodiments of the present application, the secondary dust collector 500 is communicated with the boiler 400. After the high-temperature gas exchanges heat with the demineralized water in the boiler 400, it enters the secondary dust collector 500 for secondary dust removal, and then enters the circulating fan 600, and is blown into the heat exchanger 700 through the circulating fan 600, where it is heat-exchanged and cooled again, and finally returns to the coke dry quenching furnace 300 for the next cycle.

[0059] It should be noted that in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0060] Each embodiment in this specification is described in a related manner. For the same or similar parts among the embodiments, reference can be made to each other. Each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and reference can be made to the relevant part of the method embodiment for the related content.

[0061] The above are only the preferred embodiments of the present application and are not intended to limit the protection scope of the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application are included in the protection scope of the present application.

Claims

1. A coke fines recovery device for a dry coke quenching system, characterized in that, Comprising: A device main body (110), including a housing (111) and a spiral guiding structure (112), The housing (111) includes a first end (1111) and a second end (1112). Inside the housing (111), there are a first chamber (1113) and a second chamber (1114). The second chamber (1114) is separated from the first chamber (1113). A cooling pipe (150) is arranged inside the second chamber (1114), and the cooling pipe (150) is used for coolant to pass through to cool the coke powder in the first chamber (1113); The spiral guiding structure (112) is arranged inside the first chamber (1113). The spiral guiding structure (112) is used to guide the coke powder to move from the first end (1111) to the second end (1112) inside the first chamber (1113), applying a driving force to the coke powder, so as to convey the coke powder. The spiral guiding structure (112) includes spiral blades (1121). A plurality of the spiral blades (1121) are fixed on the inner wall of the first chamber (1113), and the plurality of spiral blades (1121) are spirally distributed along the axial direction of the housing (111) inside the first chamber (1113); A driving device (120), the driving device (120) is connected to the housing (111) and is used to drive the housing (111) and the spiral guiding structure (112) to rotate synchronously or the spiral guiding structure (112) to rotate relative to the housing (111).

2. The coke powder recovery device according to claim 1, wherein, It further includes an input part (130) and an output part (140). The input part (130) is rotatably installed at the first end (1111) of the housing (111), and the input part (130) is used to connect the first chamber (1113) with the dust collector (200) of the dry coke quenching system (10); the output part (140) is rotatably installed at the second end (1112) of the housing (111), and the output part (140) is used to connect the first chamber (1113) with the coke powder bin of the dry coke quenching system (10).

3. The coke powder recovery device according to claim 2, wherein The input part (130) and the output part (140) are tubular structures. The coke powder recovery device further includes a first mechanical seal component and a second mechanical seal component. The first mechanical seal component includes a first stationary ring and a first rotating ring. The input part (130) is connected to the first stationary ring, and the first end (1111) of the housing (111) is connected to the first rotating ring; the second mechanical seal component includes a second stationary ring and a second rotating ring. The output part (140) is connected to the second stationary ring, and the second end (1112) of the housing (111) is connected to the second rotating ring.

4. The coke powder recovery device according to claim 1, characterized in that, The driving device (120) includes a first gear (121), a second gear (122) and a motor (123). The first gear (121) is sleeved outside the housing (111). The second gear (122) meshes with the first gear (121). The motor (123) is drivingly connected to the second gear (122).

5. The coke breeze recovery device according to claim 1, characterized in that, It further includes a supporting device (160). The housing (111) is installed on an external device through the supporting device (160). The supporting device (160) includes a wheel belt (161) and a supporting wheel assembly (162).

6. The coke powder recovery device according to claim 1, wherein The spiral guiding structure (112) includes a rotating shaft and spiral blades (1121) arranged on the rotating shaft. The rotating shaft is rotatably arranged in the first chamber (1113). The axis of the rotating shaft is parallel to the axis of the housing (111). The spiral blades (1121) are spirally distributed along the axis direction of the rotating shaft. The driving device (120) is connected to the rotating shaft. The driving device (120) is used to drive the rotating shaft to rotate relative to the housing (111).

7. The coke powder recovery device according to claim 6, characterized in that, It further includes an input part (130) and an output part (140). The input part (130) is fixedly installed at the first end (1111) of the housing (111). The input part (130) is used to communicate the first chamber (1113) with a dust collector (200) of the coke dry quenching system. The output part (140) is fixedly installed at the second end (1112) of the housing (111). The output part (140) is used to communicate the first chamber (1113) with a coke powder bin of the coke dry quenching system.

8. The coke powder recovery device according to claim 1, characterized in that, The housing (111) is of a sleeve structure. The housing (111) includes an inner cylinder (1115) and an outer cylinder (1116). The inner cylinder (1115) and the outer cylinder (1116) are coaxial and fixedly connected. The space inside the inner cylinder (1115) serves as the first chamber (1113). A second chamber (1114) is defined between the inner cylinder (1115) and the outer cylinder (1116). The cooling pipeline (150) is arranged between the inner cylinder (1115) and the outer cylinder (1116).

9. A coke dry quenching system, characterized in that, It includes: A coke dry quenching furnace (300); A dust collector (200). The air outlet of the coke dry quenching furnace (300) is communicated with the air inlet of the dust collector (200). The dust collector (200) is used to separate coke powder from the high-temperature gas from the coke dry quenching furnace (300). A boiler (400). The air inlet of the boiler (400) is communicated with the air outlet of the dust collector (200). The coke powder recovery device according to any one of claims 1-8. The first end (1111) of the coke powder recovery device is communicated with the ash hopper of the dust collector (200) so that the coke powder separated by the dust collector (200) falls into the coke powder recovery device.

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