A material preheating and homogenizing device for a cracking furnace feed inlet

Abstract

The utility model provides a kind of pyrolysis furnace feed inlet material preheating homogenizing device, comprising: homogenizing device and heat preservation mechanism, heat preservation mechanism is arranged on homogenizing device, heat preservation mechanism includes heat preservation cover, water inlet pipe, conveying piece, water outlet pipe, heating box and connecting pipe, heat preservation cover is sleeved on the outer wall of homogenizing device, one end of water inlet pipe is connected with the water outlet end of heat preservation cover, and another end of water inlet pipe is connected with the input end of conveying piece, conveying piece is installed outside homogenizing device, one end of water outlet pipe is connected with the water outlet end of conveying piece, and another end of water outlet pipe is connected with the water inlet end of heating box, one end of connecting pipe is connected with the water outlet end of heating box, and another end of connecting pipe is connected with the water inlet end of heat preservation cover.The utility model embodiment of a kind of pyrolysis furnace feed inlet material preheating homogenizing device, by the setting of heat preservation mechanism, not only solve the problem of low efficiency, frequent maintenance, short service life of traditional heat preservation mode, but also reduce the energy consumption when preheating.

Description

Technical Field

[0001] This utility model relates to the technical field of pyrolysis furnaces, and in particular to a material preheating and homogenizing device for the feed inlet of a pyrolysis furnace. Background Technology

[0002] A cracking furnace is a production equipment used to convert hydrocarbon raw materials into basic organic chemical raw materials such as ethylene, propylene, and butadiene through high-temperature cracking reactions. Before entering the cracking furnace, the raw materials need to be pretreated by a material preheating and homogenizing device at the cracking furnace inlet.

[0003] Currently, when preheating and homogenizing materials, traditional homogenizing devices suffer from significant heat loss due to the pipes and tank surfaces, requiring additional energy to reach the set process temperature. Furthermore, the insufficient precision in preheating temperature control affects subsequent homogenization, resulting in inefficient energy utilization of traditional preheating devices. Therefore, workers often use external tools (such as insulation blankets) to insulate the devices. However, manually wrapped insulation blankets are difficult to perfectly adhere to the equipment surface, creating heat dissipation gaps between the equipment and the insulation blankets, leading to localized thermal bridging effects. Moreover, conventional insulation blankets are prone to material embrittlement and pulverization in high-temperature and high-humidity environments over long periods, which not only shortens their service life but may also cause fiber shedding and contaminate the production environment. Utility Model Content

[0004] This utility model aims to at least partially solve one of the technical problems in the above-mentioned technologies.

[0005] Therefore, one objective of this utility model is to propose a material preheating and homogenization device for the feed inlet of a pyrolysis furnace. By setting up a heat preservation mechanism, it not only solves the problems of low efficiency, frequent maintenance and short life of traditional heat preservation methods, but also reduces energy consumption during preheating.

[0006] To achieve the above objectives, the first aspect of this utility model proposes a material preheating and homogenizing device for the feed inlet of a pyrolysis furnace, comprising: a homogenizing device and a heat preservation mechanism. The heat preservation mechanism is disposed on the homogenizing device and includes a heat preservation cover, a water inlet pipe, a conveying component, a water outlet pipe, a heating box, and a connecting pipe. The heat preservation cover is fitted onto the outer wall of the homogenizing device. One end of the water inlet pipe is connected to the water outlet of the heat preservation cover, and the other end of the water inlet pipe is connected to the input end of the conveying component. The conveying component is installed outside the homogenizing device. One end of the water outlet pipe is connected to the water outlet of the conveying component, and the other end of the water outlet pipe is connected to the water inlet of the heating box. One end of the connecting pipe is connected to the water outlet of the heating box, and the other end of the connecting pipe is connected to the water inlet of the heat preservation cover.

[0007] In addition, the material preheating and homogenizing device for the feed inlet of the pyrolysis furnace proposed above may also have the following additional technical features:

[0008] Specifically, a flow valve is installed on the outside of the homogenizing device and is mounted on the delivery pipe.

[0009] Specifically, the homogenizing device is equipped with a cleaning mechanism, which includes a driving component, a rotating column, a connecting rod, a scraper, and a spray assembly. The driving component is installed on the outer wall of the homogenizing device, the rotating column is connected to the input end of the driving component, one end of the connecting rod is connected to the rotating column, the scraper is connected to the other end of the connecting rod, and the spray assembly is installed inside the homogenizing device.

[0010] Specifically, a thermometer is installed on the outside of the homogenizing device, and the thermometer is mounted on the outer wall of the insulation cover.

[0011] Specifically, the cleaning mechanism is connected to a spray assembly, which includes a delivery pipe, a ring pipe, and nozzles. One end of the delivery pipe is connected to the ring pipe, which is installed inside the homogenizing device, and the nozzles are installed on the ring pipe.

[0012] Specifically, the homogenizing device is equipped with a guide plate and a flow equalization net. The guide plate is installed at the feed end of the homogenizing device, and the flow equalization net is installed at the feed end of the homogenizing device.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The material preheating and homogenizing device at the feed inlet of the pyrolysis furnace of the present invention, through the setting of the insulation mechanism, the use of the conveying component and the heating box in conjunction with the insulation jacket, and the use of circulating hot water in the pipeline to keep the homogenizing device warm, reduces the heat loss of the homogenizing device, effectively blocks the thermal bridge effect, and solves the problems of low efficiency, frequent maintenance and short life of traditional insulation methods. It not only provides a stable temperature environment for the subsequent homogenization process, but also reduces the energy consumption during preheating.

[0014] Meanwhile, the cleaning mechanism is designed so that during operation, the drive unit works with the scraper to continuously scrape the inner wall of the homogenizing device to prevent coke deposits. After shutdown, the drive unit and scraper work with the spray assembly to clean the coke deposits adhering to the inner wall of the device, effectively solving the problems of easy coking and short maintenance cycles in traditional devices, and improving the service life of the device.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0017] Figure 1 This is a schematic diagram of a material preheating and homogenizing device at the feed inlet of a pyrolysis furnace according to an embodiment of the present invention.

[0018] Figure 2 This is a schematic diagram of the insulation mechanism of a material preheating and homogenizing device at the feed inlet of a pyrolysis furnace according to an embodiment of the present invention.

[0019] Figure 3 This is a schematic diagram of the cleaning mechanism of a material preheating and homogenizing device at the feed inlet of a pyrolysis furnace according to an embodiment of the present invention.

[0020] Figure 4 This is a schematic diagram of the spray assembly structure of a material preheating and homogenizing device at the feed inlet of a pyrolysis furnace according to an embodiment of the present invention.

[0021] Reference numerals: 1. Homogenizing device; 2. Insulation mechanism; 21. Insulation cover; 22. Inlet pipe; 23. Conveying component; 24. Outlet pipe; 25. Heating box; 26. Connecting pipe; 3. Cleaning mechanism; 31. Driving component; 32. Rotating column; 33. Connecting rod; 34. Scraper; 35. Spray assembly; 351. Conveying pipe; 352. Annular pipe; 353. Spray head; 4. Flow valve; 5. Thermometer; 6. Guide plate; 7. Flow equalization net. Detailed Implementation

[0022] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0023] The following describes an embodiment of the present invention with reference to the accompanying drawings: a material preheating and homogenizing device for the feed inlet of a pyrolysis furnace.

[0024] like Figures 1-4 As shown in the figure, a material preheating and homogenizing device for the feed inlet of a pyrolysis furnace according to an embodiment of the present invention includes: a homogenizing device 1 and a heat preservation mechanism 2.

[0025] The heat preservation mechanism 2 is installed on the homogenizing device 1.

[0026] The heat preservation mechanism 2 includes a heat preservation cover 21, a water inlet pipe 22, a conveying component 23, a water outlet pipe 24, a heating box 25, and a connecting pipe 26.

[0027] The heat insulation cover 21 is fitted on the outer wall of the homogenizing device 1. One end of the water inlet pipe 22 is connected to the water outlet of the heat insulation cover 21, and the other end of the water inlet pipe 22 is connected to the input end of the conveying component 23. The conveying component 23 is installed outside the homogenizing device 1. One end of the water outlet pipe 24 is connected to the water outlet of the conveying component 23, and the other end of the water outlet pipe 24 is connected to the water inlet of the heating box 25. One end of the connecting pipe 26 is connected to the water outlet of the heating box 25, and the other end of the connecting pipe 26 is connected to the water inlet of the heat insulation cover 21.

[0028] It should be noted that the conveying component 23 described in the utility model embodiment of this application is a water pump, which is mainly responsible for conveying the heated hot water in the heating box 25 to the heat insulation cover 21 through the pipeline to heat the outer wall of the homogenizing device 1, reduce the heat loss of the homogenizing device 1, and improve the preheating effect of the homogenizing device 1.

[0029] Specifically, when the homogenizing device 1 is working, the operator first starts the conveyor 23 through external control. The conveyor 23 pumps the cold water in the insulation cover 21 into the water inlet pipe 22, and then pumps it out through the output end into the water outlet pipe 24. After the water outlet pipe 24 flows into the heating box 25, the cold water is heated into hot water in the heating box 25. At this time, the hot water is discharged from the water outlet of the heating box 25 and enters from the water inlet of the insulation cover 21 through the connecting pipe 26. This effectively insulates the outer wall of the homogenizing device 1, thereby reducing the heat loss of the homogenizing device 1 and improving the preheating effect of the homogenizing device 1.

[0030] In one embodiment of this application, such as Figure 1 As shown, a flow valve 4 is provided on the outside of the homogenizing device 1, and the flow valve 4 is installed on the conveying pipe 351.

[0031] Understandably, the installation of flow valve 4 allows workers to effectively control the flow rate of cleaning fluid when connecting an external cleaning fluid delivery device.

[0032] In one embodiment of this application, such as Figure 3 As shown, the homogenizing device 1 is equipped with a cleaning mechanism 3.

[0033] The cleaning mechanism 3 includes a drive component 31, a rotating column 32, a connecting rod 33, a scraper 34, and a spray assembly 35.

[0034] The drive unit 31 is installed on the outer wall of the homogenizing device 1, the rotating column 32 is connected to the input end of the drive unit 31, one end of the connecting rod 33 is connected to the rotating column 32, the scraper 34 is connected to the other end of the connecting rod 33, and the spray assembly 35 is installed inside the homogenizing device 1.

[0035] It should be noted that the driving component 31 described in the utility model embodiment of this application is a motor, which is mainly responsible for driving the scraper 34 to continuously scrape the inner wall of the homogenizing device 1 to prevent the deposition of coke.

[0036] Specifically, when the homogenizing device 1 is working, the operator first starts the drive unit 31 through external control. The rotating shaft of the drive unit 31 drives the multi-stage stirring device installed on the rotating column 32 to mix and homogenize the material. At this time, the rotating shaft of the drive unit 31 drives the scraper 34 to rotate against the inner wall of the homogenizing device 1 through the rotating column 32 and the connecting rod 33. The scraper 34 continuously scrapes the inner wall of the homogenizing device 1 to prevent coke from depositing on the inner wall of the homogenizing device 1.

[0037] After the homogenizing device 1 is shut down, the operator first connects the spray assembly 35 to the external cleaning liquid delivery device. Then, the spray assembly 35 sprays cleaning liquid onto the inner wall of the homogenizing device 1. At the same time, the operator starts the drive unit 31 through the external control. The rotating shaft of the drive unit 31 drives the scraper 34 to rotate against the inner wall of the homogenizing device 1 through the rotating column 32 and the connecting rod 33, scraping off the coke adhering to the inner wall. The scraped coke then falls onto the inner wall of the homogenizing device 1, and finally the coke and sewage are discharged through the sewage outlet of the homogenizing device 1.

[0038] In one embodiment of this application, such as Figure 1 As shown, a thermometer 5 is installed on the outside of the homogenizing device 1, and the thermometer 5 is mounted on the outer wall of the heat insulation cover 21.

[0039] Understandably, staff can monitor the water temperature inside the insulation cover 21 in real time using the thermometer 5.

[0040] In one embodiment of this application, such as Figure 4 As shown, the cleaning mechanism 3 is connected to the spray assembly 35.

[0041] The spray assembly 35 includes a delivery pipe 351, an annular pipe 352, and a nozzle 353.

[0042] One end of the delivery pipe 351 is connected to the annular pipe 352, which is installed inside the homogenizing device 1, and the nozzle 353 is installed on the annular pipe 352.

[0043] Specifically, after the homogenizing device 1 is shut down, the operator first connects the other end of the delivery pipe 351 to the external cleaning fluid delivery device. Then, the external cleaning fluid enters the annular pipe 352 through the delivery pipe 351 and is sprayed out in the form of water mist by the nozzle 353. The water mist sprayed by the nozzle 353 wets the inner wall of the homogenizing device 1 and decomposes the residual coke on the inner wall of the homogenizing device 1.

[0044] In one embodiment of this application, such as Figure 1 As shown, the homogenizing device 1 is equipped with a guide plate 6 and a flow equalization net 7. The guide plate 6 is installed at the feed end of the homogenizing device 1, and the flow equalization net 7 is installed at the feed end of the homogenizing device 1.

[0045] Understandably, the combined use of the guide plate 6 and the flow equalization net 7 can eliminate the flow deviation and eddies caused by pipe bends, ensuring that the fluid can enter the homogenizing device 1 evenly, making the mixing effect more stable and efficient.

[0046] Working principle: When the homogenizing device 1 is working, the operator first starts the conveyor 23 through external control. The conveyor 23 pumps the cold water in the heat insulation cover 21 into the water inlet pipe 22, and then pumps it out through the output end into the water outlet pipe 24. After the water outlet pipe 24 flows into the heating box 25, the cold water is heated into hot water in the heating box 25 and discharged from the water outlet end of the heating box 25. It then enters from the water inlet end of the heat insulation cover 21 through the connecting pipe 26, effectively insulating the outer wall of the homogenizing device 1, thereby reducing the heat loss of the homogenizing device 1 and improving the preheating effect of the homogenizing device 1.

[0047] Meanwhile, specifically, when the homogenizing device 1 is working, the operator first starts the drive component 31 through external control. The rotating shaft of the drive component 31 drives the multi-stage stirring device installed on the rotating column 32 to mix and homogenize the material. At this time, the rotating shaft of the drive component 31 drives the scraper 34 to rotate against the inner wall of the homogenizing device 1 through the rotating column 32 and the connecting rod 33. The scraper 34 continuously scrapes the inner wall of the homogenizing device 1 to prevent coke from depositing on the inner wall of the homogenizing device 1.

[0048] After the homogenizing device 1 is shut down, the operator first connects the other end of the delivery pipe 351 to the external cleaning fluid delivery device. Then, the external cleaning fluid enters the annular pipe 352 through the delivery pipe 351 and is sprayed out in the form of water mist by the nozzle 353. The water mist sprayed by the nozzle 353 wets the inner wall of the homogenizing device 1 and decomposes the residual coke on the inner wall of the homogenizing device 1. At the same time, the operator starts the drive component 31 through external control. The rotating shaft of the drive component 31 drives the scraper 34 to rotate against the inner wall of the homogenizing device 1 through the rotating column 32 and the connecting rod 33, scraping off the coke adhering to the inner wall. The scraped coke then falls onto the inner wall of the homogenizing device 1, and finally the coke and sewage are discharged through the sewage outlet of the homogenizing device 1.

[0049] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0050] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0051] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A material preheating and homogenizing device for the feed inlet of a pyrolysis furnace, characterized in that, include: A homogenizing device (1) and a heat preservation mechanism (2) are provided. The heat preservation mechanism (2) is installed on the homogenizing device (1). The heat preservation mechanism (2) includes a heat preservation cover (21), a water inlet pipe (22), a conveying component (23), a water outlet pipe (24), a heating box (25), and a connecting pipe (26). The heat preservation cover (21) is fitted onto the outer wall of the homogenizing device (1). One end of the water inlet pipe (22) is connected to the water outlet end of the heat preservation cover (21), and the water inlet pipe (22)... The other end is connected to the input end of the conveying component (23), which is installed outside the homogenizing device (1). One end of the water outlet pipe (24) is connected to the water outlet end of the conveying component (23), and the other end of the water outlet pipe (24) is connected to the water inlet end of the heating box (25). One end of the connecting pipe (26) is connected to the water outlet end of the heating box (25), and the other end of the connecting pipe (26) is connected to the water inlet end of the heat preservation cover (21).

2. The material preheating and homogenizing device at the feed inlet of a pyrolysis furnace according to claim 1, characterized in that, The homogenizing device (1) is provided with a flow valve (4) on its exterior, and the flow valve (4) is installed on the conveying pipe (351).

3. The material preheating and homogenizing device at the feed inlet of a pyrolysis furnace according to claim 1, characterized in that, The homogenizing device (1) is provided with a cleaning mechanism (3), which includes a driving component (31), a rotating column (32), a connecting rod (33), a scraper (34), and a spray assembly (35). The driving component (31) is installed on the outer wall of the homogenizing device (1), the rotating column (32) is connected to the input end of the driving component (31), one end of the connecting rod (33) is connected to the rotating column (32), the scraper (34) is connected to the other end of the connecting rod (33), and the spray assembly (35) is installed inside the homogenizing device (1).

4. The material preheating and homogenizing device at the feed inlet of a pyrolysis furnace according to claim 3, characterized in that, A thermometer (5) is provided on the outside of the homogenizing device (1), and the thermometer (5) is installed on the outer wall of the heat insulation cover (21).

5. The material preheating and homogenizing device at the feed inlet of a pyrolysis furnace according to claim 3, characterized in that, The cleaning mechanism (3) is connected to a spray assembly (35), which includes a delivery pipe (351), an annular pipe (352) and a nozzle (353). One end of the delivery pipe (351) is connected to the annular pipe (352), the annular pipe (352) is installed inside the homogenizing device (1), and the nozzle (353) is installed on the annular pipe (352).

6. The material preheating and homogenizing device at the feed inlet of a pyrolysis furnace according to claim 1, characterized in that, The homogenizing device (1) is provided with a guide plate (6) and a flow equalization net (7). The guide plate (6) is installed at the feed end of the homogenizing device (1), and the flow equalization net (7) is installed at the feed end of the homogenizing device (1).

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