Quantitative loading system and loading station for feeding grab bucket of delayed coking device

Abstract

The utility model discloses a quantitative loading system for delayed coking device grab bucket feeding and a loading station. The system comprises a controller, a grab bucket, a buffer bucket, a discharge valve, a quantitative feeder and a dust suppression device. A buffer bucket is arranged below the grab bucket; a discharge valve is mounted at the lower end of the buffer hopper, the discharge valve is connected with the constant feeder through a sealing structure, and a dust suppression device is mounted at a blanking port of the constant feeder; the controller receives unloading weighing signals collected by the constant feeder and is used for sending start / stop control instructions to the unloading valve, the constant feeder and the dust suppression device. The loading station is provided with a space which is formed by building supporting columns and roofs and used for installing a quantitative loading system, an upper platform and a lower platform which are arranged up and down are arranged in the space, the upper platform is used for installing a buffer hopper, the lower platform is used for installing a quantitative feeder, and a space used for parking loaded vehicles is formed below the lower platform. And quantitative loading can be carried out, and the dust suppression effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of petroleum coke loading, in particular to a quantitative loading system for grab bucket loading of a delayed coking device. Background Art

[0002] Currently, direct loading of petroleum coke from delayed coking units in China remains the primary method. This method makes it difficult to control the loading volume, often resulting in significant deviations from the rated load after weighing. This often necessitates secondary loading with the grab bucket or manual unloading, severely impacting loading efficiency and increasing labor intensity. Furthermore, the lack of airtightness during the loading process creates significant dust and pollutes the environment. To improve loading efficiency, reduce operator workload, and minimize environmental pollution, the market urgently needs a quantitative loading system that utilizes grab bucket loading. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a quantitative loading system and a loading station for grab bucket loading of a delayed coking device.

[0004] To achieve the above technical objectives, the adopted technical solution is: a quantitative loading system for grab bucket loading of delayed coking unit, comprising a controller, a grab bucket, a buffer bucket, a discharge valve, a quantitative feeder and a dust suppression device;

[0005] A buffer bucket for feeding materials into the grab bucket is provided below the grab bucket;

[0006] A discharge valve is installed at the lower end discharge port of the buffer hopper, and a sealing structure is adopted between the lower end flange of the discharge valve and the feed port of the quantitative feeder. A dust suppression device is installed at the discharge port of the quantitative feeder;

[0007] The controller is connected to the discharge valve, quantitative feeder and dust suppression device respectively, receives the discharge weighing signal collected by the quantitative feeder, and is used to issue start / stop control instructions to the discharge valve, quantitative feeder and dust suppression device.

[0008] The quantitative loading system of the utility model further comprises a silo wall vibrator which is connected and controlled by a controller and is arranged on the side wall of the buffer hopper. The controller sends a start / stop control instruction to the silo wall vibrator.

[0009] The buffer hopper of the utility model comprises at least two discharge ports, each of which is provided with a discharge valve, and the discharge valves are controlled by a controller to open alternately for discharge.

[0010] The sealing structure described in the utility model is a flexible connection structure.

[0011] The quantitative loading system of the utility model further comprises video monitoring equipment for observing the position of the feed port of the buffer hopper and the loading status.

[0012] The quantitative loading system of the utility model also includes a communication facility for communicating with the loading driver.

[0013] The dust suppression device of the utility model comprises a dust-blocking curtain with a sealed discharge channel installed at a material drop opening of a quantitative feeder, and a water mist spraying device arranged on the periphery of the dust-blocking curtain.

[0014] A loading station is provided with a space composed of support columns and a roof structure for installing the quantitative loading system. An upper platform and a lower platform are arranged up and down in the space. The upper platform is used to install a buffer bucket, and the lower platform is used to install a quantitative feeder. There is a space under the lower platform for parking loading vehicles.

[0015] The space above the lower platform of the utility model is a confined space.

[0016] The beneficial effects of the utility model are:

[0017] 1. This system changes the direct grabbing and loading by grab bucket into an overall closed quantitative loading system. The quantitative feeder directly performs unloading weighing. Compared with weighing on the buffer bucket, the weighing result is more accurate. If weighing is performed on the buffer bucket, the process from loading to loading is long and difficult to control. The petroleum coke residue on each component during the transmission process further reduces the weighing accuracy. Through the designed weighing value, automatic control is carried out by the controller, which reduces the operating workload and improves the loading efficiency. Feeding and unloading are carried out simultaneously to reduce dust. A dust suppression device is set at the unloading port of the quantitative feeder to avoid environmental pollution.

[0018] 2. Install a silo wall vibrator controlled by a controller on the side wall of the buffer hopper. When the petroleum coke in the buffer hopper forms a bridge, it will be cleared through the silo wall vibrator.

[0019] 3. Design at least two discharge ports, and make the discharge ports discharge alternately, which does not affect the discharge. At the same time, the petroleum coke bridging in the buffer hopper can be quickly determined through a single discharge port. The discharge port that can be discharged can be switched, and the silo wall vibrator can be turned on for dredging without affecting the unloading. Moreover, each discharge port meets the transmission efficiency of the quantitative feeder. Compared with a discharge port of the same size in the prior art, the angle between the side wall of the buffer silo and the horizontal plane becomes larger, which is less likely to be blocked. The improved buffer hopper with the same height and feed port has increased the storage volume compared with the buffer hopper in the prior art.

[0020] 4. The discharge valve is flexibly connected to the quantitative feeder. The flexible connection structure has low cost and is easy to seal. It can more effectively compensate for the position deviation between the discharge valve flange and the feed port of the quantitative feeder, avoiding stress between the equipment.

[0021] 5. Video monitoring equipment can be used to observe whether the buffer bucket is blocked, whether the loading is uniform, and to direct the loading vehicle to move.

[0022] 6. Adding communication facilities will facilitate the command of loading vehicles.

[0023] 7. The dust suppression device includes a dust curtain and a water mist spray device, which can prevent dust in all directions and avoid environmental pollution.

[0024] 8. The loading station can be used to install a quantitative loading system. The quantitative loading system should be installed reasonably to facilitate loading. The space on the lower platform is set as a sealed space to suppress dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is the main view of the utility model;

[0026] Figure 2 for Figure 1 Left view of;

[0027] In the figure: 1. Buffer hopper, 101. Discharge port, 2. Silo wall vibrator, 3. Discharge valve, 4. Quantitative feeder, 5. Dust suppression device, 501. Dust curtain, 502. Water mist spray device, 6. Sealing structure, 7. Loading station, 701. Support, 702. Roof, 703. Upper platform, 704. Lower platform, 8. Controller, 9. Video surveillance equipment, 10. Communication facilities, 11. Grab bucket. DETAILED DESCRIPTION

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] like Figure 1 and Figure 2 As shown, the utility model provides a quantitative loading system for grab bucket loading of delayed coking device, which is used to realize quantitative control of the grab bucket loading process, reduce the workload of operators, improve loading efficiency and avoid environmental pollution.

[0030] A quantitative loading system for grab loading of delayed coking device Example 1: A quantitative loading system for grab loading of delayed coking device, comprising a controller 8, a grab 11, a buffer bucket 1, a discharge valve 3, a quantitative feeder 4 and a dust suppression device 5; a buffer bucket 1 for feeding the grab 11 is provided below the grab 11; the buffer bucket 1 is used to buffer the petroleum coke fed from the grab 11, a discharge valve 3 is installed at the lower end outlet 101 of the buffer bucket 1, a sealing structure 6 is used to connect the lower end flange of the discharge valve 3 to the feed port of the quantitative feeder 4, and the discharge valve 3 is used to control the flow of the material in the buffer bucket 1 Whether the petroleum coke enters the quantitative feeder 4, the quantitative feeder 4 is used to transport the petroleum coke in the buffer hopper 1 into the carriage and measure the loaded petroleum coke. The sealing structure 6 ensures that the petroleum coke transportation process does not cause pollution. A dust suppression device 5 is installed at the drop port of the quantitative feeder 4; the dust suppression device 5 is used to control the dust phenomenon when the petroleum coke falls into the carriage; the controller 8 is respectively connected to the discharge valve 3, the quantitative feeder 4 and the dust suppression device 5. The controller 8 receives the discharge weighing signal collected by the quantitative feeder 4. The controller 8 is used to send a start / stop control instruction to the discharge valve 3, the quantitative feeder 4 and the dust suppression device 5. When loading, the controller 8 interlocks and controls the discharge valve 3, the quantitative feeder 4 and the dust suppression device 5 to start. When the discharge weighing signal collected by the quantitative feeder 4 meets the standard, the interlock controls the discharge valve 3, the quantitative feeder 4 and the dust suppression device 5 to close.

[0031] Furthermore, the buffer hopper 1 includes at least two discharge ports, each equipped with a discharge valve 3. The discharge valves 3 are controlled by a controller 8 to alternately open and discharge material. Given a given height, the buffer hopper of the present application has a larger storage capacity than a buffer hopper with a single discharge port of the same size. A grid structure can be incorporated into the buffer hopper to effectively filter out bulky material, preventing it from falling into the dosing feeder and causing mechanical jams. Furthermore, when a single buffer hopper is not discharging material, the dosing feeder's count remains unchanged, making it easier to detect blockages. In this case, the outlet can be switched to a more accessible outlet without affecting loading.

[0032] Furthermore, the sealing structure 6 is a flexible connection structure, which is used to block the hard contact between the discharge valve 3 and the quantitative feeder 4, avoid stress between the devices, and prevent damage caused by hard contact.

[0033] Furthermore, the dust suppression device 5 comprises a dust curtain 501 with a sealed discharge channel, mounted at the discharge port of the quantitative feeder 4, and a water mist spray device 502 disposed outside the dust curtain 501. The dust curtain 501 surrounds the discharge port to prevent dust from rising. The water mist dust suppression is controlled by an electric valve, further effectively controlling dust generated when the petroleum coke falls into the carriage.

[0034] The controller 8 provides the operator with a good human-machine interface and reliable control program; it includes: local operation control cabinet, remote operation control cabinet, remote control, PLC control program. This part is conventional control equipment and will not be described in detail.

[0035] The discharge valve is electrically controlled and is equipped with a valve plate limit switch. The valve plate limit switch is interlocked with the electric power. When the valve plate is in place, the electric power stops.

[0036] The quantitative feeder is driven by variable frequency control, which can adjust the operating speed and control the petroleum coke delivery volume according to the loading requirements; the quantitative feeder has a dynamic weighing function to measure the weight of the loaded petroleum coke; the error between the amount of material dropped and the weighing number is small, which reduces the error in the transmission process and ensures accurate weighing. The quantitative feeder is equipped with a fully sealed material guide trough to prevent the petroleum coke from being scattered and dusting during operation.

[0037] Specific embodiment 2 of the utility model is a quantitative loading system for grab bucket loading of a delayed coking device. The difference between this embodiment and the above-mentioned specific embodiment 1 of the utility model is that: the system also includes a silo wall vibrator 2 connected and controlled by a controller 8 and arranged on the side wall of the buffer hopper 1. The controller 8 sends a start / stop control instruction to the silo wall vibrator 2. The silo wall vibrator 2 is used to deal with the situation where bridging of petroleum coke occurs in the buffer hopper 1.

[0038] Specific embodiment 3 of the quantitative loading system for grab bucket loading of a delayed coking unit according to the present invention differs from the aforementioned specific embodiment 2 of the quantitative loading system for grab bucket loading of a delayed coking unit according to the present invention in that the system also includes video monitoring equipment 9 for observing the feed port position of the buffer bucket 1 and the loading status. Video monitoring equipment 9 provides a visual working environment for remote operators or provides automatic control data to controller 8. Video monitoring equipment 9 can monitor whether the buffer bucket 1 is full, activate the silo wall vibrator 2 through the controller, and observe the pile shape of the petroleum coke in the car, notifying the loading driver to move the car to ensure uniform loading of the petroleum coke.

[0039] A specific embodiment 4 of a quantitative loading system for grab loading of a delayed coking device according to the present invention is different from the specific embodiment 3 of the present invention described above in that: the system also includes a communication facility 10 for communicating with the loading driver. The operator observes the pile shape of the petroleum coke in the car through the video monitoring 9 and commands the vehicle driver to move the vehicle through the communication device 10, which facilitates the command.

[0040] The optimal operating process of this system is as follows: After the vehicle enters the loading station, the metering feeder 5 is activated, and the grab bucket begins to release petroleum coke into the buffer hopper 1. One of the discharge valves 3 is opened, and the petroleum coke falls into the metering feeder 4 and is transported into the vehicle compartment. At this point, the program detects the presence of petroleum coke through the dynamic metering function of the metering feeder 4. The controller 8 then interlocks and activates the dust suppression device 5. The operator observes the petroleum coke pile inside the vehicle compartment through the video monitor 9 and directs the vehicle driver to move the vehicle through the communication device 10. When the loaded volume reaches the set pre-load volume, the controller 8 interlocks and stops the metering feeder, completing the loading process. During the loading process, the two discharge valves 3 are opened alternately to discharge the material. If the operator observes the presence of petroleum coke in the buffer hopper 1 through the video monitor 9 and the metering feeder fails to discharge during the alternating opening of the discharge valves 3, it is determined that the buffer hopper 1 has formed a bridge of petroleum coke, and the silo wall vibrator 2 is opened to clear the bridge. These interlocked actions can also be controlled by the operator in "manual mode."

[0041] like Figure 1 、 Figure 2 As shown, an embodiment 1 of a loading station: the loading station is provided with a space composed of support columns 701 and a roof 702 for installing a quantitative loading system, and the space is provided with an upper platform 703 and a lower platform 704 arranged in an upper and lower manner. The upper platform 703 is used to install a buffer bucket 1, and the lower platform 704 is used to install a quantitative feeder 4. There is a space for parking loading vehicles under the lower platform 704. The quantitative loading system adopts any of the quantitative loading systems in embodiments 1-3 of the above-mentioned quantitative loading system for grab loading of a delayed coking device, which will not be repeated here. The loading station 7 provides a reliable support platform for the quantitative loading system, and the components of the quantitative loading system are reasonably installed in the height direction according to the unloading order, which is convenient for integrated installation and use. The loading station also includes steps, protection, etc.

[0042] Furthermore, the space above the lower platform 704 is a sealed space, and the sealed space can enhance the dust suppression effect.

[0043] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of the technical content disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A quantitative loading system for grab loading of delayed coking unit, characterized by: It includes a controller (8), a grab bucket (11), a buffer bucket (1), a discharge valve (3), a quantitative feeder (4) and a dust suppression device (5); A buffer bucket (1) is provided below the grab bucket (11) for feeding the grab bucket (11); A discharge valve (3) is installed at the lower end discharge port (101) of the buffer hopper (1), and a sealing structure (6) is used to connect the lower end flange of the discharge valve (3) and the feed port of the quantitative feeder (4). A dust suppression device (5) is installed at the discharge port of the quantitative feeder (4); The controller (8) is connected to the discharge valve (3), the quantitative feeder (4) and the dust suppression device (5) respectively. The controller (8) receives the discharge weighing signal collected by the quantitative feeder (4). The controller (8) is used to send a start / stop control instruction to the discharge valve (3), the quantitative feeder (4) and the dust suppression device (5).

2. A quantitative loading system for grab bucket loading of a delayed coking unit according to claim 1, characterized in that: It also includes a silo wall vibrator (2) connected and controlled by a controller (8) and arranged on the side wall of the buffer hopper (1), and the controller (8) sends a start / stop control instruction to the silo wall vibrator (2).

3. A quantitative loading system for grab bucket loading of a delayed coking unit according to claim 1 or 2, characterized in that: The buffer hopper (1) comprises at least two discharge ports, each of which is equipped with a discharge valve (3). The discharge valves (3) are controlled by a controller (8) to open alternately for discharge.

4. The quantitative loading system for grab bucket loading of a delayed coking unit according to claim 1, characterized in that: The sealing structure (6) is a flexible connection structure.

5. A quantitative loading system for grab bucket loading of a delayed coking unit according to claim 1 or 2, characterized in that: It also includes video monitoring equipment (9) for observing the position of the feed port of the buffer hopper (1) and the loading status.

6. The quantitative loading system for grab bucket loading of a delayed coking unit according to claim 1, characterized in that: Also included is a telephone facility (10) for communicating with the loading driver.

7. The quantitative loading system for grab bucket loading of a delayed coking unit according to claim 1, characterized in that: The dust suppression device (5) comprises a dust curtain (501) with a sealed discharge channel installed at the discharge port of the quantitative feeder (4), and a water mist spray device (502) arranged on the periphery of the dust curtain (501).

8. A loading station, characterized by: A space for installing the quantitative loading system according to any one of claims 1 to 7 is provided, which is composed of support columns (701) and a roof (702). An upper platform (703) and a lower platform (704) are provided in the space. The upper platform (703) is used to install a buffer bucket (1), and the lower platform (704) is used to install a quantitative feeder (4). There is a space for parking loading vehicles below the lower platform (704).

9. A loading station according to claim 8, characterized in that: The space above the lower platform (704) is a confined space.

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