Granulation kettle tar collecting system and granulation kettle

Abstract

The utility model relates to a prilling kettle tar collecting system and prilling kettle, the prilling kettle tar collecting system comprises a main smoke pipe, a tar discharge pipe, a tar collecting pool, a thermal insulation jacket and a high temperature molten tar collecting device, the main smoke pipe is connected with a prilling kettle smoke discharge pipeline, the tar discharge pipe is located between the main smoke pipe and the tar collecting pool, and the thermal insulation jacket is located between the tar collecting pool and the thermal insulation jacket. A heat preservation jacket is arranged outside the tar collecting tank, the lower part of the tar collecting tank is connected with a high-temperature molten tar collecting device through a pipeline, a tar inlet valve is arranged in the middle of the tar discharging pipe, and a tar discharging port valve is arranged in a pipeline connected with the high-temperature molten tar collecting device and below the tar collecting tank. By arranging the heat preservation jacket, tar in the tar collection pool is at a certain temperature and is not solidified, so that the pipeline does not need to be dredged manually, the safety is improved, and the use cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of tar collection, in particular to a tar collection system for a granulating kettle and a granulating kettle. Background Art

[0002] When the existing tar collection system for a granulating kettle collects tar, a valve is installed at the tar discharge port of the smoke exhaust pipe, and then a collection device is placed at the valve to collect tar. In the daily use of the existing tar collection system, if the tar in the coke pipe solidifies, manual dredging is required. Since the solidified tar is not easy to remove, the pipeline needs to be heated with gas. During the process of manually removing the tar in the pipeline, the worker is easily scalded by the leaked tar, which poses a certain safety hazard. At the same time, it is also easy to damage equipment such as pipelines, increasing the use cost of the entire system. In addition, the leaked tar is difficult to clean up when it spills on the equipment and the working platform. Summary of the Utility Model

[0003] The utility model aims to provide a tar collection system for a granulating kettle and a granulating kettle to solve the deficiencies in the prior art. The technical problems to be solved by the utility model are realized through the following technical solutions.

[0004] A tar collection system for a granulating kettle includes a main smoke pipe, a coke discharge pipe, a tar collection pool, a heat preservation jacket, and a high-temperature molten tar collection device. The main smoke pipe is connected to the smoke exhaust pipeline of the granulating kettle. The coke discharge pipe is located between the main smoke pipe and the tar collection pool. A heat preservation jacket is provided outside the tar collection pool. The lower part of the tar collection pool is connected to the high-temperature molten tar collection device through a pipeline. An inlet coke valve is arranged in the middle of the coke discharge pipe. A discharge coke valve is arranged in the pipeline connecting the lower part of the tar collection pool and the high-temperature molten tar collection device.

[0005] Preferably, a coke extraction pump is further arranged on the coke discharge pipe. An oil collection pipe is provided at the bottom of the main smoke pipe. The oil inlet end of the coke extraction pump is communicated with the oil collection pipe. Oil inlet holes are evenly distributed on the circumferential surface of the oil collection pipe.

[0006] Preferably, a temperature sensor and a first liquid level sensor are arranged in the tar collection pool. The temperature sensor is arranged in the middle and lower part of the tar collection pool. The first liquid level sensor is arranged in the upper part of the tar collection pool.

[0007] Preferably, the heat preservation jacket is a heat preservation jacket with electric heating wires, a heat preservation jacket with hollow steam heating, a heat preservation jacket with hollow open-fire heating, or other heat preservation jackets with heating functions.

[0008] Preferably, a second liquid level sensor is arranged in the high-temperature molten tar collection device. The second liquid level sensor is located in the upper part of the high-temperature molten tar collection device.

[0009] Preferably, a condensing pipe is provided in the main smoke pipe, and the condensing pipe is communicated with a water treatment system, and the water treatment system provides circulating cooling water for the condensing pipe.

[0010] Preferably, the high-temperature molten tar collection device is a collection device made of an iron bucket, a ceramic bucket or other high-temperature resistant materials.

[0011] Preferably, a control device is further included, and the control device is respectively connected to the heat preservation jacket, the temperature sensor, the first liquid level sensor, the coke inlet valve, the coke pumping pump, the coke discharge port valve and the second liquid level sensor.

[0012] Preferably, a drainage plate is provided in the main smoke pipe.

[0013] A granulation kettle includes the above-mentioned granulation kettle tar collection system.

[0014] Compared with the prior art, the present application has the following advantages:

[0015] 1. Since components such as a coke pumping pump, a collecting oil pipe and a coke discharge pipe are provided, the tar inside the main smoke pipe can be sucked. Compared with the method of discharging tar only by gravity, such a setting can not only discharge more cleanly, prevent tar from slagging inside the main smoke pipe, but also solve the problem of smoke leakage from the smoke exhaust pipe caused by an open coke discharge pipe.

[0016] 2. A heat preservation jacket is arranged outside the tar collection pool, and the tar can be maintained at 120-150 °C to prevent it from solidifying.

[0017] 3. By setting a control device connected to the heat preservation jacket, the temperature sensor, the first liquid level sensor, the coke inlet valve, the coke pumping pump, the coke discharge port valve and the second liquid level sensor, automatic control is realized, and the tar in the main smoke pipe is sucked and discharged regularly. The tar collection pool is monitored in real time through the temperature sensor and the liquid level sensor, and heating and tar discharge are automatically realized. Description of the Drawings

[0018] Figure 1 It is a schematic diagram of the overall structure of the granulation kettle tar collection system of the present utility model;

[0019] Figure 2 It is a schematic cross-sectional structure diagram of the collecting oil pipe in the present utility model;

[0020] The reference numerals in the drawings are in sequence: 1. Main smoke pipe, 2. Coke discharge pipe, 3. Coke inlet valve, 4. Tar collection pool, 5. Heat preservation jacket, 6. Temperature sensor, 7. First liquid level sensor, 8. Coke discharge port valve, 9. High-temperature molten tar collection device, 10. Coke pumping pump, 11. Collecting oil pipe, 12. Second liquid level sensor, 13. Condensing pipe, 14. Water treatment system, 15. Drainage plate. Detailed Embodiments

[0021] The technical solutions of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Components of the embodiments of the present invention generally described and illustrated in the figures herein can be arranged and designed in a variety of different configurations.

[0023] Therefore, the detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0024] It should be noted that like reference numerals and letters denote like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

[0025] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present invention is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

[0026] In the description of the present invention, it should also be noted that unless otherwise clearly defined and limited, the terms "set", "installed", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0028] Embodiment

[0029] Such as Figure 1As shown in the figure, a tar collection system for a granulation kettle includes a main flue pipe 1, a coke discharging pipe 2, a tar collection tank 4, a heat preservation jacket 5, and a high-temperature molten tar collection device 9. The main flue pipe 1 is connected to the smoke discharging pipeline of the granulation kettle. The coke discharging pipe 2 is located between the main flue pipe 1 and the tar collection tank 4. A heat preservation jacket 5 is provided outside the tar collection tank 4. The lower part of the tar collection tank 4 is connected to the high-temperature molten tar collection device 9 through a pipeline. A coke inlet valve 3 is provided in the middle of the coke discharging pipe 2. A coke discharging port valve 8 is provided in the pipeline connecting the lower part of the tar collection tank 4 and the high-temperature molten tar collection device 9.

[0030] Furthermore, a coke pumping pump 10 is also provided on the coke discharging pipe 2. An oil collecting pipe 11 is provided at the bottom of the main flue pipe 1. The oil inlet end of the coke pumping pump 10 is communicated with the oil collecting pipe 11. Oil inlet holes are evenly distributed on the circumferential surface of the oil collecting pipe 11.

[0031] In this application, components such as a coke pumping pump, an oil collecting pipe, and a coke discharging pipe are provided. Compared with the conventional method of relying only on gravity to discharge tar, the coke pumping pump and the oil collecting pipe can suck the tar inside the main flue pipe more thoroughly, making the tar discharging effect better and preventing excessive residue of tar inside the main flue pipe from causing slagging. In addition, due to the setting of the coke pumping pump and the oil collecting pipe, if it is an open coke discharging, the problem of flue gas leakage from the smoke discharging pipe can also be solved.

[0032] Furthermore, a temperature sensor 6 and a first liquid level sensor 7 are provided inside the tar collection tank 4. The temperature sensor 6 is arranged in the middle and lower part of the tar collection tank 4. The first liquid level sensor 7 is arranged in the upper part of the tar collection tank 4.

[0033] In some embodiments, the first liquid level sensor 7 can also be connected to an audible and visual alarm device placed outside the tar collection tank 4. When the tar in the tar collection tank 4 reaches a preset value, the audible and visual alarm device gives an alarm to remind the staff.

[0034] Furthermore, the heat preservation jacket 5 is a heat preservation sleeve with an electric heating wire, a heat preservation sleeve with hollow steam heating, a heat preservation sleeve with hollow open fire heating, or other heat preservation sleeves with heating functions.

[0035] When the tar in the tar collection tank 4 cools to a certain temperature, it is easy to solidify. To prevent this situation, in this application, a heat preservation jacket 5 is provided outside the tar collection tank 4. When the tar in the tar collection tank 4 cools to a certain temperature, the heating device is turned on to heat the tar in the tar collection tank 4 to prevent it from solidifying.

[0036] Furthermore, the temperature during heating of the heat preservation jacket 5 is controlled at 120 - 150 °C.

[0037] Furthermore, both the coke inlet valve 3 and the coke discharging port valve 8 are one-way electromagnetic valves.

[0038] Preferably, a second liquid level sensor 12 is provided in the high-temperature molten tar collection device 9, and the second liquid level sensor 12 is located in the upper part of the high-temperature molten tar collection device 9.

[0039] In some embodiments, the second liquid level sensor 12 may also be connected to an audible and visual alarm device disposed outside the high-temperature molten tar collection device 9. When the tar in the high-temperature molten tar collection device 9 reaches a preset value, the audible and visual alarm device gives an alarm to remind the staff. In addition, since the high-temperature molten tar collection device 9 is mostly an opaque container, it is impossible to judge from the outside whether the tar collected in the high-temperature molten tar collection device 9 reaches the preset value. Therefore, the second liquid level sensor 12 is used for monitoring and connected to the control device, so that the coke discharge port valve 8 is closed by the control device after the tar in the high-temperature molten tar collection device 9 reaches the preset value.

[0040] Preferably, a condensing pipe 13 is provided in the main flue 1, and the condensing pipe 13 is communicated with the water treatment system 14, and the water treatment system 14 provides circulating cooling water for the condensing pipe 13. By providing the condensing pipe 13 and the water treatment system 14, the circulating cooling water can be used to condense the tar so that the tar can fall into the inner bottom of the main flue 1 as much as possible.

[0041] Furthermore, the condensing pipe 13 is arranged in a wavy shape in the main flue 1.

[0042] Preferably, the high-temperature molten tar collection device 9 is a collection device made of an iron bucket, a ceramic bucket or other high-temperature resistant materials.

[0043] For the high-temperature molten tar collection device 9, it is not necessary to only select an iron bucket or a ceramic bucket. Any collection device made of high-temperature resistant materials can be used.

[0044] Furthermore, a control device is further included, and the control device is respectively connected to the heat preservation jacket 5, the temperature sensor 6, the first liquid level sensor 7, the coke inlet valve 3, the coke extraction pump 10, the coke discharge port valve 8 and the second liquid level sensor 12.

[0045] Furthermore, the control device is a PLC controller.

[0046] Preferably, a diversion plate 15 is provided in the main flue 1. The diversion plate 15 is used to intercept the tar to reduce the amount of tar carried out by the flue gas, and at the same time make the tar fall into the inner bottom of the main flue 1 as much as possible.

[0047] Furthermore, the diversion plate 15 can be located at the peak and / or trough position of the condensing pipe 13, or can be located at other positions in the main flue 1.

[0048] During specific implementation, a PLC controller is used on-site to achieve the control function. Through the time setting function, the PLC controller regularly and automatically turns on the main smoke pipe and the coke extraction pump to suck the tar inside the main smoke pipe into the tar collection tank 4. The PLC controller also receives data from the temperature sensor 6 and the first liquid level sensor 7. When the temperature sensor 6 monitors that the temperature in the tar collection tank 4 drops to 120 °C, it automatically controls the heating device in the heat preservation jacket 5 to heat, so that the temperature in the tar collection tank 4 is maintained at 120 - 150 °C. When the first liquid level sensor 7 monitors that the tar in the tar collection tank 4 reaches the preset height, the PLC controller automatically opens the coke discharge port valve 8 to discharge the tar in the tar collection tank 4 into the high-temperature molten tar collection device 9. When the second liquid level sensor 12 monitors that the tar in the high-temperature molten tar collection device 9 reaches the preset height, the PLC controller closes the coke discharge port valve 8.

[0049] The PLC controller is a commonly used automatic control device in the industrial control field, and there are editable operation instructions set inside it. The operation instructions involved in this application are all mature existing technologies, rather than independently developed by the applicant.

[0050] A granulation kettle includes the above-mentioned tar collection system for the granulation kettle.

[0051] The working process of the present utility model: The tar collection system for the granulation kettle provided by the present utility model, through the above improvements, each granulation kettle has a separate smoke exhaust pipe connected to the main smoke pipe. An inlet coke valve and a coke extraction pump are installed on the coke discharge pipe below the main smoke pipe. The coke discharge pipe is connected to the tar collection tank below. When the inlet coke valve is opened, the coke extraction pump is also opened, and the tar inside the main smoke pipe is sucked through the coke extraction pump and the oil collecting pipe. After the tar is discharged into the tar collection tank, it is cooled, and the temperature is monitored by the temperature sensor in the tar collection tank. When it is cooled to 120 - 150 °C, the control device automatically turns on the heating switch of the heat preservation jacket to heat, so that the tar temperature is maintained between 120 - 150 °C to prevent the tar from solidifying. The liquid level is monitored by the first liquid level sensor in the tar collection tank. When the first liquid level sensor monitors that the tar in the tar collection tank reaches a certain height, the control device automatically controls the coke discharge port valve to open, so that the tar converges into the high-temperature molten tar collection device. When the second liquid level sensor in the high-temperature molten tar collection device monitors that the tar in the high-temperature molten tar collection device reaches a certain height, the control device controls the coke discharge port valve to close.

[0052] In this application, the control device is respectively connected to the heat preservation jacket, the temperature sensor, the first liquid level sensor, the coke inlet valve, the coke extraction pump, the coke discharge port valve and the second liquid level sensor, and can realize the timed discharge of tar from the main flue. At the same time, based on the monitoring data of the temperature sensor and the liquid level sensor, it can realize automatic heating and automatically discharge the tar collection tank to the high-temperature molten tar collection device.

[0053] It should be noted that the above detailed description is exemplary and is intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs.

[0054] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments described according to this application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0055] It should be noted that the terms "first", "second", etc. in the description, claims and drawings of this application are used to distinguish similar objects and do not necessarily describe a specific order or sequence. It should be understood that such terms can be interchanged under appropriate circumstances so that the embodiments of this application described herein can be implemented in an order other than those illustrated or described herein.

[0056] In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or are inherent to these processes, methods, products or devices.

[0057] For ease of description, spatial relative terms such as "above", "over", "on the upper surface", "upper" etc. may be used herein to describe the spatial positional relationship of one device or feature to other devices or features as shown in the figures. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is inverted, a device described as "above" or "over" other devices or structures will then be positioned "below" or "under" the other devices or structures. Thus, the exemplary term "above" can include both the orientations of "above" and "below". The device may also be positioned in other different ways, such as rotated 90 degrees or in other orientations, and the corresponding explanations for the spatial relative descriptions used herein will be made accordingly.

[0058] In the detailed description above, reference has been made to the accompanying drawings which form a part hereof. In the drawings, like symbols typically identify like components unless the context indicates otherwise. The illustrated embodiments described in the detailed description, the drawings, and the claims are not meant to be limiting. Other embodiments may be used and other changes may be made without departing from the spirit or scope of the subject matter presented herein.

[0059] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A granulation kettle tar collection system, characterized in that: It includes a main flue pipe (1), a coke discharging pipe (2), a tar collection tank (4), a heat preservation jacket (5) and a high-temperature molten tar collection device (9). The main flue pipe (1) is connected to the smoke discharging pipeline of the granulation kettle. The coke discharging pipe (2) is located between the main flue pipe (1) and the tar collection tank (4). A heat preservation jacket (5) is arranged outside the tar collection tank (4). The lower part of the tar collection tank (4) is connected to the high-temperature molten tar collection device (9) through a pipeline. An inlet coke valve (3) is arranged in the middle of the coke discharging pipe (2). A coke discharging valve (8) is arranged in the pipeline connecting the lower part of the tar collection tank (4) and the high-temperature molten tar collection device (9).

2. The granulation kettle tar collection system according to claim 1, characterized in that: A coke extraction pump (10) is further arranged on the coke discharging pipe (2). An oil collecting pipe (11) is arranged at the bottom of the main flue pipe (1). The oil inlet end of the coke extraction pump (10) is communicated with the oil collecting pipe (11). Oil inlet holes are evenly distributed on the circumferential surface of the oil collecting pipe (11).

3. The granulation kettle tar collection system according to claim 2, characterized in that: A temperature sensor (6) and a first liquid level sensor (7) are arranged in the tar collection tank (4). The temperature sensor (6) is arranged in the middle and lower part of the tar collection tank (4). The first liquid level sensor (7) is arranged in the upper part of the tar collection tank.

4. A granulation kettle tar collection system according to claim 1, characterized in that: The heat preservation jacket (5) is a heat preservation jacket with electric heating wires, a heat preservation jacket with hollow steam heating, a heat preservation jacket with hollow open fire heating or other heat preservation jackets with heating functions.

5. The granulation kettle tar collection system according to claim 3, characterized in that: A second liquid level sensor (12) is arranged in the high-temperature molten tar collection device (9). The second liquid level sensor (12) is located in the upper part of the high-temperature molten tar collection device (9).

6. The tar collection system for a granulation kettle according to claim 1, wherein: A condensing pipe (13) is arranged in the main flue pipe (1). The condensing pipe (13) is communicated with a water treatment system (14). The water treatment system (14) provides circulating cooling water for the condensing pipe (13).

7. The granulation kettle tar collection system according to claim 1, characterized in that: The high-temperature molten tar collection device (9) is a collection device made of an iron bucket, a ceramic bucket or other high-temperature resistant materials.

8. A granulation kettle tar collection system according to claim 5, characterized in that: It further includes a control device. The control device is respectively connected to the heat preservation jacket (5), the temperature sensor (6), the first liquid level sensor (7), the inlet coke valve (3), the coke extraction pump (10), the coke discharging valve (8) and the second liquid level sensor (12).

9. The tar collection system for a granulation kettle according to claim 1, wherein: A diversion plate (15) is arranged in the main flue pipe (1).

10. A granulation kettle, characterized in that: It includes the granulation kettle tar collection system according to any one of claims 1-9.

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