Carbon scraping head for cracking furnace

Abstract

The utility model belongs to the carbon removal equipment technical field of cracking furnace, concretely relates to a carbon scraping head for cracking furnace, include: the cracking furnace body with the feed pipe in the top, be equipped with the liftable carbon scraping head body in the cracking furnace body, the carbon scraping head body is circular ring structure, just the carbon scraping head body is equipped with on the feed pipe, the outside of feed pipe bottom is equipped with the air -jet mechanism, the outside of air -jet mechanism is circular array distribution and has a plurality of air -jet position for air -jet, based on the air -jet makes the top of cracking furnace body form the insulating area that insulates to carbon scraping head body, the air -jet mechanism includes the air pipe and the ring pipe that communicates with air pipe, the utility model discloses through the air -jet mechanism of adding, can form insulating area below the carbon scraping head body through the air -jet mechanism, can avoid the carbon deposition that the equipment produced when using covers on the carbon scraping head body through the insulating area, improves the service life of carbon scraping head body.

Description

Technical Field

[0001] This utility model belongs to the technical field of carbon removal equipment for pyrolysis furnaces, specifically relating to a carbon scraper head for pyrolysis furnaces. Background Technology

[0002] Cracking furnaces are generally used to prepare acetylene. In the actual process of acetylene cracking furnaces, the carbon scraper head is used to scrape the carbon deposits in the reaction chamber furnace every 2 hours. During the carbon scraping process, it must withstand a temperature of over 1500℃.

[0003] The following problems exist with the carbon scraper head of the pyrolysis furnace: 1. Carbon buildup occurs on the scraper head during operation. Excessive carbon buildup will directly cause the pyrolysis furnace to shut down. 2. The scraper head deforms at high temperatures during operation, preventing it from entering the reaction channel to scrape carbon, which will also directly cause the pyrolysis furnace to shut down. Utility Model Content

[0004] The purpose of this invention is to provide a carbon scraper for a pyrolysis furnace to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a carbon scraper head for a pyrolysis furnace, comprising: a pyrolysis furnace body with a feed pipe at the top, wherein the pyrolysis furnace body is provided with a liftable carbon scraper head body, the carbon scraper head body is a circular ring structure, and the carbon scraper head body is sleeved on the feed pipe, and an air jet mechanism is provided outside the bottom end of the feed pipe, wherein multiple air jet positions for air jetting are distributed in a circular array outside the air jet mechanism, thereby forming an isolation area on the top of the pyrolysis furnace body to isolate carbon buildup on the carbon scraper head body based on the air jetting.

[0006] Preferably, the jetting mechanism includes an air inlet pipe and an annular pipe communicating with the air inlet pipe. The annular pipe is sleeved on the outside of the bottom end of the feed pipe, and a support is connected between the annular pipe and the pyrolysis furnace body. Multiple jet nozzles are arranged in a ring array on the outside of the annular pipe.

[0007] Preferably, the interior of the carbon scraper head body is provided with a plurality of interconnected annular water channels for heat dissipation from the inside to the outside, and the exterior of the pyrolysis furnace body is provided with a liquid supply mechanism that communicates with the annular water channels.

[0008] Preferably, the liquid supply mechanism includes a coolant outlet pipe and a coolant inlet pipe, both of which are connected to the annular water channel, and a liquid pump is installed on both the coolant outlet pipe and the coolant inlet pipe.

[0009] Preferably, a liftable lifting plate is provided above the pyrolysis furnace body, and the two liquid pumps are installed on the top of the lifting plate. Two lifting rods are provided between the lifting plate and the carbon scraper head body, which can move through the pyrolysis furnace body. Each of the two lifting rods is provided with a connecting pipe that connects to the two liquid pumps, and the other end of each of the two connecting pipes is connected to and installed on an annular water channel.

[0010] Preferably, two electric push rods connected to the lifting plate are symmetrically arranged on the longitudinal direction of the outer side of the pyrolysis furnace body. The two electric push rods are used to drive the lifting rods to move closer to or away from one side of the pyrolysis furnace body.

[0011] Compared with the prior art, this utility model has the following advantages:

[0012] (1) The present invention has an added air jet mechanism, which can form an isolation area below the carbon scraper head body. The isolation area can prevent carbon deposits generated during the use of the equipment from covering the carbon scraper head body, thereby improving the service life of the carbon scraper head body.

[0013] (2) By adding an annular water channel and liquid supply mechanism, this utility model can cool down the carbon scraper head body and prevent the carbon scraper head body from deforming due to excessive temperature during use. Attached Figure Description

[0014] Figure 1 is a schematic diagram of the structure of this utility model;

[0015] Figure 2 is a schematic diagram of the cooperation between the annular water channel and the carbon scraper head body of this utility model;

[0016] Figure 3 is a top view of the air intake pipe, ring pipe and jet nozzle of this utility model;

[0017] In the diagram: 1. Cracking furnace body; 2. Electric actuator; 3. Carbon scraper head body; 4. Feed pipe; 5. Lifting rod; 6. Lifting plate; 7. Coolant outlet pipe; 8. Liquid pump; 9. Connecting pipe; 10. Air inlet pipe;

[0018] 11. Ring pipe; 12. Coolant inlet pipe; 13. Bracket; 14. Annular water channel; 15. Air jet nozzle. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] refer toFigure 2 As shown, the present invention provides a carbon scraper head for a pyrolysis furnace, comprising: a pyrolysis furnace body 1 with a feed pipe 4 on the top, a liftable carbon scraper head body 3 in the pyrolysis furnace body 1, the carbon scraper head body 3 having a circular structure and being sleeved on the feed pipe 4, and an air jet mechanism provided on the outside of the bottom end of the feed pipe 4, the outside of the air jet mechanism having multiple air jet positions distributed in a circular array, thereby forming an isolation area on the top of the pyrolysis furnace body 1 to isolate carbon buildup on the carbon scraper head body 3 based on the air jet.

[0021] As described above, using the feed pipe 4, pyrolysis furnace body 1, and carbon scraper head body 3 provided by this utility model, the feed pipe 4 feeds the pyrolysis furnace body 1. When the pyrolysis furnace body 1 is in use, the jetting mechanism forms an air pressure isolation below the carbon scraper head body 3, preventing dust in the pyrolysis furnace body 1 from falling onto the carbon scraper head body 3, thereby preventing carbon buildup on the carbon scraper head body 3 and improving the service life of the carbon scraper head body 3.

[0022] In this utility model, in conjunction with Figure 1 and Figure 3 As shown, the jetting mechanism of this embodiment includes an air inlet pipe 10 and an annular pipe 11 connected to the air inlet pipe 10. The annular pipe 11 is sleeved on the outside of the bottom end of the feed pipe 4, and a support 13 is connected between the annular pipe 11 and the cracking furnace body 1. Multiple jet nozzles 15 are arranged in a ring array on the outside of the annular pipe 11.

[0023] As described above, when using the jetting mechanism provided by this utility model, the bracket 13 in the jetting mechanism provides an installation position for the ring pipe 11, and at the same time facilitates the suspension of multiple jet nozzles 15 below the carbon scraper head body 3 when it is not in use. The external protective gas is distributed below the carbon scraper head body 3 through multiple jet nozzles 15, which prevents the carbon deposits in the pyrolysis furnace body 1 from covering the carbon scraper head body 3 and improves the service life of the carbon scraper head body 3.

[0024] In this utility model, as shown in Figures 1-2, the interior of the carbon scraper head body 3 is provided with a plurality of interconnected annular water channels 14 for heat dissipation from the inside to the outside, and the exterior of the pyrolysis furnace body 1 is provided with a liquid supply mechanism that communicates with the annular water channels 14.

[0025] As shown in Figure 1, the liquid supply mechanism includes a coolant outlet pipe 7 and a coolant inlet pipe 12, both of which are connected to the annular water channel 14. A liquid pump 8 is installed on both the coolant outlet pipe 7 and the coolant inlet pipe 12.

[0026] As described above, the multiple annular water channels 14 provided by this utility model are used. There are three annular water channels 14 in the figure. The multiple annular water channels 14 facilitate the uniform distribution of coolant at different positions of the carbon scraper head body 3. The coolant is circulated in the annular water channels 14 through the liquid supply mechanism, which facilitates the cooling of the carbon scraper head body 3 and can prevent the carbon scraper head body 3 from deforming due to excessive temperature.

[0027] Furthermore, to avoid interference with the raising and lowering of the scraper head body 3 caused by the liquid pumps 8 installed on the coolant inlet pipe 12, as shown in Figure 1, a lifting plate 6 is provided above the pyrolysis furnace body 1. Two liquid pumps 8 are installed on the top of the lifting plate 6. Two lifting rods 5 are provided between the lifting plate 6 and the scraper head body 3, movably penetrating the pyrolysis furnace body 1. Each of the two lifting rods 5 has a connecting pipe 9 connecting the two liquid pumps 8, and the other end of each connecting pipe 9 is connected to and installed on the annular water channel 14. The lifting rods 5 facilitate the connection between the lifting plate 6 and the scraper head body 3, and simultaneously provide an installation position for the liquid pumps 8. The connecting pipes 9 installed in the lifting rods 5 connect the liquid pumps 8 and the annular water channel 14. During the raising and lowering of the scraper head body 3, since the connecting pipes 9 are located within the lifting rods 5, interference with the raising and lowering of the scraper head body 3 can be avoided.

[0028] Furthermore, to facilitate the lifting and lowering of the lifting plate 6, as shown in Figure 1, two electric actuators 2 connected to the lifting plate 6 are symmetrically arranged in the longitudinal direction on the outer side of the pyrolysis furnace body 1. The two electric actuators 2 are used to drive the lifting rod 5 to move closer to or away from one side of the pyrolysis furnace body 1. The lifting and lowering of the lifting plate 6 can be driven by the electric actuators 2, making it easy to adjust the lifting plate 6 above the pyrolysis furnace body 1. This facilitates the lifting and lowering of the carbon scraper head 3 within the pyrolysis furnace body 1, thereby scraping away the carbon deposits on the inner wall of the pyrolysis furnace body 1 during the lifting and lowering process.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A carbon scraping head for a cracking furnace, characterized by, include: The pyrolysis furnace body (1) has a feed pipe (4) on the top. The pyrolysis furnace body (1) is provided with a liftable carbon scraper head body (3). The carbon scraper head body (3) has a circular structure and is sleeved on the feed pipe (4). The bottom end of the feed pipe (4) is provided with an air jet mechanism. The outside of the air jet mechanism has multiple air jet positions for air jetting in a circular array. Based on the air jetting, the top of the pyrolysis furnace body (1) forms an isolation area to isolate the carbon scraper head body (3) from carbon buildup.

2. A carbon stripping head for a cracker furnace as claimed in claim 1, characterized in that: The jetting mechanism includes an air inlet pipe (10) and an annular pipe (11) connected to the air inlet pipe (10). The annular pipe (11) is sleeved on the outside of the bottom end of the feed pipe (4), and a support (13) is connected between the annular pipe (11) and the pyrolysis furnace body (1). Multiple jet nozzles (15) are arranged in a ring array on the outside of the annular pipe (11).

3. A carbon stripping head for a cracker furnace as claimed in claim 1, characterized in that: The interior of the carbon scraper head body (3) is provided with a plurality of interconnected annular water channels (14) for heat dissipation from the inside to the outside, and the exterior of the pyrolysis furnace body (1) is provided with a liquid supply mechanism that is connected to the annular water channels (14).

4. A carbon stripping head for a cracking furnace as claimed in claim 3, characterized in that: The liquid supply mechanism includes a coolant outlet pipe (7) and a coolant inlet pipe (12) that are both connected to the annular water channel (14), and a liquid pump (8) is installed on both the coolant outlet pipe (7) and the coolant inlet pipe (12).

5. A carbon stripping head for a cracker furnace as claimed in claim 4, wherein: The pyrolysis furnace body (1) is provided with a liftable lifting plate (6) above it. The two liquid pumps (8) are installed on the top of the lifting plate (6). The lifting plate (6) and the carbon scraper head body (3) are provided with two lifting rods (5) that can move through the pyrolysis furnace body (1). The two lifting rods (5) are provided with connecting pipes (9) that connect the two liquid pumps (8), and the other end of the two connecting pipes (9) are connected to the annular water channel (14).

6. A carbon stripping head for a cracker furnace as claimed in claim 5, wherein: Two electric push rods (2) connected to the lifting plate (6) are symmetrically arranged on the longitudinal direction outside the pyrolysis furnace body (1). The two electric push rods (2) are used to drive the lifting rod (5) to move closer to or away from one side of the pyrolysis furnace body (1).

Images