Coke wharf dust hood bin gate

Abstract

The utility model relates to a bin gate of a coke wharf dust hood. The bin gate comprises a bin gate frame, an outer bin gate, an inner bin gate, a connecting rod and a bin gate driving device, a hole above the coke wharf in the bin door frame is sealed by an outer bin door and an inner bin door; the inner bin door and the outer bin door are synchronously opened or closed under the driving of the bin door driving device and the driving of the connecting rod; a sealing guide plate is arranged on the inner side of the inner bin door, and when the inner bin door is opened towards the inner side of the coke wharf dust hood, the upper end of the sealing guide plate synchronously swings towards the inner side of the coke wharf dust hood. The coke wharf dust hood adopts a bin gate type sealing structure, is good in sealing effect, and can be automatically opened as required; therefore, steam and dust collection operation in the whole process from coke unloading of a quenching car to coke placing of a coke wharf is achieved, and the device is efficient, energy-saving, safe and reliable.

Description

Technical Field

[0001] This utility model relates to the field of wet quenching technology, and in particular to a dust removal hood door for a coke oven platform. Background Technology

[0002] Currently, the wet quenching process in coking plants is as follows: High-temperature coke is loaded into quenching cars via a coke pusher and coke catcher, and moved to the quenching tower. The coke is cooled by a water spray system within the quenching tower, and then the cooled coke is placed onto a coke platform by the quenching car. The coke platform's function is to cool, drain, and evaporate moisture from the wet-quenched mixed coke, and to perform additional quenching on any remaining red-hot coke. Typically, the coke cools on the coke platform for about 30 minutes. Mechanized coke discharge equipment at the bottom of the coke platform evenly scrapes the mixed coke sliding down onto a coke conveyor belt located in the coke platform trench for transport.

[0003] With increasingly stringent environmental protection requirements, the entire coke transportation process must be sealed to prevent dust and particulate matter spillage. Dust removal operations have also been added to the coke platform area. The method is as follows: the coke platform area is enclosed with dust hoods, and the side of the dust hood facing the quenching car is sealed with a rubber curtain. The dust hoods are connected to the dust collector via dust removal pipes. When the quenching car arrives at the coke platform carrying cooled coke, the quenching car driver requests permission to unload the coke from the coke platform operator. The coke platform operator then directs the driver to drive the quenching car to the unloading position. The coke platform operator activates the dust collector, and the quenching car unloads the coke to the unloading position and leaves. The coke platform operator shuts down the dust collector when dust removal is complete.

[0004] The existing dust collector hoods for coke ovens mainly have the following problems:

[0005] 1) During the process of the coke quenching car unloading coke onto the coke platform, the initial coke release section is the period when water vapor and coke dust are concentrated. There is a large gap between the rubber soft curtain and the coke quenching car, which is an area where water vapor carrying coke dust particles seriously overflows and is also a blind spot for dust removal.

[0006] 2) During the process of unloading coke from the quenching car onto the coke platform, the temperature of the coke is still very high, which can cause the rubber curtain to deform due to heat. The parts in direct contact with the coke may even wear off, further leading to the leakage of coke dust. In the subsequent coke drying and dust removal process, the rubber curtain is not tightly sealed, resulting in serious leakage of coke dust.

[0007] 3) The dust removal process requires manual observation and control by operators; the degree of automation is low, the on-site environment is harsh, and the labor intensity of operators is high. Summary of the Invention

[0008] This utility model provides a dust collection hood for a coke platform. The dust collection hood adopts a hood-type sealing structure, which has a good sealing effect and can be automatically opened as needed. This enables the entire process of steam and dust collection from unloading coke from the quenching car to releasing coke from the coke platform, which is highly efficient, energy-saving, safe and reliable.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] A coke oven dust collector hood includes a hood frame, an outer hood, an inner hood, a connecting rod, and a hood drive device. The hood frame is located on the side of the coke oven dust collector hood facing the quenching car track, and the coke oven extends from the lower part of the hood frame to the outside of the hood. The opening above the coke oven within the hood frame is closed by the outer and inner hood doors. The outer hood is located on the upper outer side of the hood frame, and its top is hinged to the hood frame. The inner hood is located on the lower inner side of the hood frame, and its top is hinged to the hood frame. The middle part of the connecting rod is hinged to the middle part of the hood frame. One end of the rod is slidably connected to the outer compartment door, and the other end of the connecting rod is simultaneously connected to the inner compartment door and the compartment door drive device; the compartment door drive device is installed on the compartment door frame; under the drive of the compartment door drive device and the drive of the connecting rod, the inner compartment door and the outer compartment door open or close synchronously; a sealing guide plate is provided on the inner side of the inner compartment door, the bottom of the sealing guide plate is hinged to the inner compartment door frame, and the top of the sealing guide plate is connected to the hinge shaft of the inner compartment door through a synchronous transmission mechanism; when the inner compartment door opens to the inside of the coking platform dust hood, the upper end of the sealing guide plate swings synchronously to the inside of the coking platform dust hood.

[0011] Furthermore, the outer door consists of an outer door frame and an outer door panel. The outer door frame has a U-shaped door frame structure. The upper outer sides of the two columns of the door frame are respectively provided with outer door supports. The two ends of the outer door frame are rotatably connected to the corresponding outer door supports through hinges. The outer door panel is embedded in the outer door frame and has an outward protrusion structure on the side facing the door frame.

[0012] Furthermore, the inner door consists of an inner door frame and an inner door panel. The inner door frame has a U-shaped door frame structure. The inner door supports are respectively provided on the inner side of the middle of the two columns of the door frame. The two ends of the inner door frame are rotatably connected to the corresponding inner door supports through hinges. The inner door panel is embedded in the inner door frame and has an outward protrusion structure on the side facing the door frame.

[0013] Furthermore, the middle part of the two columns of the door frame is provided with connecting rod supports, and the middle part of the connecting rod is rotatably connected to the connecting rod support through a hinge; a guide groove is opened on the outer door frame of the outer door, and a guide rod is provided at one end of the connecting rod to cooperate with the guide groove to achieve a sliding connection; a pivot is provided in the middle of the inner door frame of the inner door, and the other end of the connecting rod is sleeved on the pivot; the pivot is also hinged to the extended end of the door drive device.

[0014] Furthermore, the door drive device is an electro-hydraulic actuator, which is connected to the door frame via an actuator support.

[0015] Furthermore, the synchronous transmission mechanism consists of a transmission gear set and a rocker arm. The transmission gear set is located inside the inner door frame. Slide grooves are provided on both sides of the upper part of the sealing guide plate, which are connected to the transmission gear set through the rocker arm. The first-stage transmission gear of the transmission gear set is located on the hinge shaft at the top of the inner door, and the last-stage transmission gear is connected to the inner door frame through a connecting shaft. The first-stage transmission gear and the last-stage transmission gear are meshed and transmitted through an intermediate transmission gear. One end of the rocker arm is slidably connected to the slide groove on the sealing guide plate, and the other end of the rocker arm is connected to the connecting shaft through a key.

[0016] Furthermore, a cross-shaped cleaning wheel is provided at the bottom of the inner door frame, and the cross-shaped cleaning wheel is set along the length of the inner door frame; the cross-shaped cleaning wheel has a cross-shaped cross section, and a drive motor is provided at one end of the cross-shaped cleaning wheel, and the drive motor is installed on the inner door frame.

[0017] A dust collector hood for a coking platform also includes a control system; a limit switch is provided on the outside of the hood frame, the signal output terminal of the limit switch is connected to the control system, and the drive terminal of the hood starting device is connected to the control system; the control system is also connected to the coking platform operation control system.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1) During the process of the quenching car unloading the cooled coke to the coke platform, the water vapor and coke dust generated in the initial coke discharge section can be collected through the dust removal hood door of the coke platform. The water vapor and coke dust can be guided to the top of the coke platform dust removal hood through the sealed guide plate, so that they can smoothly enter the dust collector and prevent coke dust particles from overflowing.

[0020] 2) The dust collector hood of the coke oven has a good sealing effect when the door is closed. The inner and outer doors are driven to open or close synchronously by the door drive device. The sealing guide plate achieves synchronous action through the synchronous transmission mechanism. The overall drive is simple and less affected by temperature.

[0021] 3) The coke unloading and dust removal process at the coke platform can be automatically controlled without human intervention, with a high degree of automation. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a dust removal hood door for a coking station as described in this utility model. Figure 1 (The warehouse door is closed.)

[0023] Figure 2 This is a schematic diagram of the structure of a dust removal hood door for a coking station as described in this utility model. Figure 2 (The warehouse door is open.)

[0024] Figure 3This is a schematic diagram illustrating the usage state of the dust removal hood door of the coking station described in this utility model. Figure 1 (The warehouse door is closed.)

[0025] Figure 4 This is a schematic diagram illustrating the usage state of the dust removal hood door of the coking station described in this utility model. Figure 2 (The warehouse door is open.)

[0026] In the diagram: 1. Coke table 2. Coke table dust hood 3. Bin door frame 4. Outer bin door 41. Outer bin door support 42. Outer bin door frame 5. Inner bin door 51. Inner bin door support 52. Inner bin door frame 53. Transmission gear set 54. Sealing guide plate 6. Connecting rod 61. Connecting rod support 7. Bin door drive device 71. Push rod support 72. Electro-hydraulic push rod 8. Cross sweeping wheel 9. Quenching car Detailed Implementation

[0027] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings:

[0028] like Figure 1 , Figure 2 As shown, the present invention provides a coking platform dust collector hood door, comprising a door frame 3, an outer door 4, an inner door 5, a connecting rod 6, and a door drive device 7. The door frame 3 is located on the side of the coking platform dust collector hood 2 facing the quenching car track, and the coking platform 1 extends from the lower part of the door frame 3 to the outside of the coking platform dust collector hood 2. The opening above the coking platform 1 inside the door frame 3 is closed by the outer door 4 and the inner door 5. The outer door 4 is located on the upper outer side of the door frame 3, and its top is hinged to the door frame 3. The inner door 5 is located on the lower inner side of the door frame 3, and its top is hinged to the door frame 3. The middle part of the connecting rod 6 is connected to the middle part of the door frame 3. The inner and outer doors are hinged. One end of the connecting rod 6 is slidably connected to the outer door 4, and the other end of the connecting rod 6 is simultaneously connected to the inner door 5 and the door drive device 7. The door drive device 7 is installed on the door frame 3. Under the drive of the door drive device 7 and the linkage 6, the inner door 5 and the outer door 4 open or close synchronously. The inner side of the inner door 5 is provided with a sealing guide plate 54. The bottom of the sealing guide plate 54 is hinged to the inner door frame 52, and the top of the sealing guide plate 54 is connected to the hinge shaft of the inner door 5 through a synchronous transmission mechanism. When the inner door 5 opens to the inside of the coking platform dust hood 2, the upper end of the sealing guide plate 54 swings synchronously to the inside of the coking platform dust hood 2.

[0029] Furthermore, the outer door 4 is composed of an outer door frame 42 and an outer door panel. The outer door frame 42 has a U-shaped door frame structure. The upper outer sides of the two columns in the door frame 3 are respectively provided with outer door supports 41. The two ends of the outer door frame 42 are rotatably connected to the corresponding outer door supports 41 through hinges. The outer door panel is embedded in the outer door frame 42 and has an outward protrusion structure on the side facing the door frame 3.

[0030] Furthermore, the inner door 5 is composed of an inner door frame 52 and an inner door panel. The inner door frame 52 has a U-shaped door frame structure. The inner door support 51 is provided on the inner side of the middle of the two columns in the door frame 3. The two ends of the inner door frame 52 are rotatably connected to the corresponding inner door support 51 through hinges. The inner door panel is embedded in the inner door frame 52 and has an outward protrusion structure on the side facing the door frame 3.

[0031] Furthermore, the middle part of the two columns in the door frame 3 is provided with connecting rod supports 61, and the middle part of the connecting rod 6 is rotatably connected to the connecting rod support 61 through a hinge; a guide groove is opened on the outer door frame 42 of the outer door 4, and a guide rod is provided at one end of the connecting rod 6 to cooperate with the guide groove to achieve a sliding connection; a pivot is provided in the middle of the inner door frame 52 of the inner door 5, and the other end of the connecting rod 6 is sleeved on the pivot; the pivot is also hinged to the extended end of the door drive device 7.

[0032] Furthermore, the door drive device 7 is an electro-hydraulic actuator 72, which is connected to the door frame 3 via an actuator support 71.

[0033] Furthermore, the synchronous transmission mechanism consists of a transmission gear set 53 and a rocker arm. The transmission gear set 53 is located inside the inner door frame 52. The upper sides of the sealing guide plate 54 are provided with sliding grooves, which are connected to the transmission gear set 53 through the rocker arm. The first-stage transmission gear of the transmission gear set 53 is located on the hinge shaft at the top of the inner door 5, and the last-stage transmission gear is connected to the inner door frame 52 through a connecting shaft. The first-stage transmission gear and the last-stage transmission gear are driven by meshing through an intermediate transmission gear. One end of the rocker arm is slidably connected to the sliding groove on the sealing guide plate 54, and the other end of the rocker arm is connected to the connecting shaft through a key.

[0034] Furthermore, a cross-shaped cleaning wheel 8 is provided at the bottom of the inner door frame 52, and the cross-shaped cleaning wheel 8 is provided along the length of the inner door frame 52; the cross-shaped cleaning wheel 8 has a cross-shaped cross section, and a drive motor is provided at one end of the cross-shaped cleaning wheel 8, and the drive motor is installed on the inner door frame 52.

[0035] The dust removal hood of the coking platform described in this utility model also includes a control system; a limit switch is provided on the outside of the hood frame 3, the signal output end of the limit switch is connected to the control system, and the drive end of the hood starting device 7 is connected to the control system; the control system is also connected to the coking platform operation control system.

[0036] like Figure 3 , Figure 4As shown, when the coke quenching car 9 travels along the coke quenching car track to the front of the coke platform dust hood, a limit switch is triggered. The control system controls the start of the hood drive device 7, which drives the connecting rod 6 to swing and simultaneously open the outer hood door 4 and the inner hood door 5. As the inner hood door 5 opens towards the inside of the coke platform dust hood 2, the synchronous transmission mechanism drives the sealing guide plate 54 to swing and unfold towards the inside of the coke platform dust hood 2. The control system sends a coke unloading signal to the coke platform operation control system and simultaneously starts the dust collector at the top of the coke platform dust hood 2. The coke discharge door of the coke quenching car 9 opens, and the coke on the coke quenching car 9 is unloaded through the channel formed after the inner hood door 5 is opened. When the coke is unloaded, the water vapor and coke dust in the high-temperature coke rise. During the unloading process, a gas rising channel is formed between the outward-opening outer door 4 and the inward-opening inner door 5, which can collect the water vapor and coke dust inside and outside the door frame 3. The inward-swinging sealing guide plate 54 can collect a large amount of water vapor and coke dust generated in the initial coke unloading section and guide it to the top of the coke platform dust collector hood 2, so that it can smoothly enter the dust collector. After the coke unloading operation is completed, the coke quenching car 9 leaves along the coke quenching car track, triggers the limit switch again, and the control system controls the door drive device 7 to simultaneously close the outer door 4 and the inner door 5.

[0037] Furthermore, when the inner door 5 is opened and closed, the bottom of the inner door frame 52 and the corresponding position of the coke platform 1 are cleaned by the cross cleaning wheel 8 to avoid residual coke affecting the opening and closing of the inner door 5.

[0038] The following embodiments are implemented based on the technical solution of this utility model, providing detailed implementation methods and specific operation processes. However, the protection scope of this utility model is not limited to the following embodiments. Unless otherwise specified, the methods used in the following embodiments are conventional methods.

[0039]

Example

[0040] like Figure 1 , Figure 2 As shown in the figure, in this embodiment, the dust removal hood door of the coke oven is composed of an outer door 4, an inner door 5, a connecting rod 6, a door frame 3, and a door drive device 7.

[0041] The bin door frame 3 is installed on the side of the coke table dust removal hood 2 near the quenching car track; the outer bin door 4 is installed on the outside of the bin door frame 3 through the outer bin door support 41; the inner bin door 5 is installed on the inside of the bin door frame 3 through the inner bin door support 51; the bin door drive device 7 is installed on the bin door frame 3, connected to the outer bin door 4, and connected to the inner bin door 4 through the connecting rod 6.

[0042] The outer door 4 consists of an outer door frame 42 with guide grooves on both sides and an outer door panel. The inner door 5 consists of an inner door frame 52 and an inner door panel. After the outer door 4 and the inner door 5 are closed, the corresponding upper and lower openings on the door frame 3 are closed by the outer door panel and the inner door panel, respectively.

[0043] A sealing guide plate 54 is provided on the inner side of the inner compartment door panel. The sealing guide plate 54 is connected to the inner compartment door 5 through a transmission gear set 53. The transmission gear set 53 is installed in the inner compartment door frame 52.

[0044] The bottom of the inner door frame 52 is equipped with a cross-shaped cleaning wheel 8, which is driven by a drive motor at the end.

[0045] In this embodiment, the door drive device 7 consists of an electro-hydraulic push rod 72 and a push rod support 71; the electro-hydraulic push rod 72 is mounted on the door frame 3 through the push rod support 71.

[0046] The middle part of the connecting rod 6 is connected to the door frame 3 through the connecting rod support 61. One end of the connecting rod 6 is slidably connected to the outer door 4, and the other end of the connecting rod 6 is simultaneously hinged to the middle part of the inner door 5 and the extended end of the electro-hydraulic push rod 52.

[0047] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A dust collector hood door for a coking station, characterized in that, The device includes a door frame, an outer door, an inner door, a connecting rod, and a door drive mechanism. The door frame is located on the side of the coke platform dust hood facing the quenching car track, and the coke platform extends from the lower part of the door frame to the outside of the coke platform dust hood. The opening above the coke platform inside the door frame is closed by the outer and inner doors. The outer door is located on the upper outer side of the door frame, and its top is hinged to the door frame. The inner door is located on the lower inner side of the door frame, and its top is hinged to the door frame. The middle part of the connecting rod is hinged to the middle part of the door frame, and one end of the connecting rod is... The outer compartment door is slidably connected, and the other end of the connecting rod is simultaneously connected to the inner compartment door and the compartment door drive device; the compartment door drive device is installed on the compartment door frame; under the drive of the compartment door drive device and the linkage, the inner compartment door and the outer compartment door open or close synchronously; a sealing guide plate is provided on the inner side of the inner compartment door, the bottom of the sealing guide plate is hinged to the inner compartment door frame, and the top of the sealing guide plate is connected to the hinge shaft of the inner compartment door through a synchronous transmission mechanism; when the inner compartment door opens to the inside of the coking platform dust hood, the upper end of the sealing guide plate swings synchronously to the inside of the coking platform dust hood.

2. The dust collector hood door of a coke oven as described in claim 1, characterized in that, The outer door consists of an outer door frame and an outer door panel. The outer door frame has a U-shaped frame structure. The upper outer sides of the two columns of the door frame are respectively provided with outer door supports. The two ends of the outer door frame are rotatably connected to the corresponding outer door supports through hinges. The outer door panel is embedded in the outer door frame and has an outward protrusion structure on the side facing the door frame.

3. The dust collector hood door of a coke oven as described in claim 1, characterized in that, The inner door consists of an inner door frame and an inner door panel. The inner door frame has a U-shaped frame structure. The inner door supports are provided on the inner sides of the middle of the two columns of the door frame. The two ends of the inner door frame are rotatably connected to the corresponding inner door supports through hinges. The inner door panel is embedded in the inner door frame and has an outward protrusion structure on the side facing the door frame.

4. The dust collector hood door of a coke oven as described in claim 1, characterized in that, The two columns of the door frame are respectively provided with connecting rod supports in the middle. The middle part of the connecting rod is rotatably connected to the connecting rod support through a hinge. A guide groove is opened on the outer door frame of the outer door. One end of the connecting rod is provided with a guide rod that cooperates with the guide groove to achieve a sliding connection. A pivot is provided in the middle of the inner door frame of the inner door. The other end of the connecting rod is sleeved on the pivot. The pivot is also hinged to the extended end of the door drive device.

5. The dust collector hood door of a coke oven as described in claim 1, characterized in that, The door drive device is an electro-hydraulic actuator, which is connected to the door frame via an actuator support.

6. The dust collector hood door of a coke oven as described in claim 1, characterized in that, The synchronous transmission mechanism consists of a transmission gear set and a rocker arm. The transmission gear set is located inside the inner door frame. The upper two sides of the sealing guide plate are provided with sliding grooves, which are connected to the transmission gear set through the rocker arm. The first-stage transmission gear of the transmission gear set is located on the hinge shaft at the top of the inner door, and the last-stage transmission gear is connected to the inner door frame through a connecting shaft. The first-stage transmission gear and the last-stage transmission gear are driven by meshing through an intermediate transmission gear. One end of the rocker arm is slidably connected to the sliding groove on the sealing guide plate, and the other end of the rocker arm is connected to the connecting shaft through a key.

7. The dust collector hood door of a coke oven as described in claim 1, characterized in that, The bottom of the inner door frame is provided with a cross-shaped cleaning wheel, which is set along the length of the inner door frame. The cross-shaped cleaning wheel has a cross-shaped cross section, and a drive motor is provided at one end of the cross-shaped cleaning wheel. The drive motor is installed on the inner door frame.

8. The dust collector hood door of a coke oven as described in claim 1, characterized in that, It also includes a control system; a limit switch is installed on the outside of the silo door frame, the signal output end of the limit switch is connected to the control system, and the drive end of the silo door starting device is connected to the control system; the control system is also connected to the coke platform operation control system.

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