Carbon black tail gas seal
By introducing a pressure alarm and automatic gate valve control system into the carbon black tail gas sealing device, the problem of the existing device being unable to intervene in time when the pressure is abnormal has been solved, and safe and reliable tail gas transportation and equipment protection have been achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUNNAN YUNWEI FEIHU CHEM CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-07-07
Smart Images

Figure CN224470103U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of carbon black tail gas technology, specifically a carbon black tail gas material sealing device. Background Technology
[0002] The carbon black production process generates a large amount of exhaust gas. This exhaust gas mainly contains unreacted raw material hydrocarbons, hydrogen, carbon monoxide, carbon dioxide, and small amounts of combustible gases such as methane, as well as a large amount of fine carbon black dust. These exhaust gases typically have high temperatures and pressures; direct emission would not only waste energy but also pollute the environment due to the combustible gases and dust they contain. Therefore, the effective recovery and utilization of carbon black exhaust gas is a crucial step for the carbon black industry to achieve energy conservation, emission reduction, and sustainable development.
[0003] In the existing technology, many existing devices may only have basic material sealing functions. When the pressure inside the exhaust pipe increases or decreases abnormally, they cannot detect it in time and take effective intervention. This may lead to continuous deterioration of the pressure and eventually damage the pipeline system. Even if some devices are equipped with pressure monitoring or simple alarm functions, there may be a time lag between the alarm and the actual intervention measures such as closing the gate valve, or the alarm method may not be conspicuous enough (such as no warning light), causing the operator to fail to respond in time and miss the best opportunity to stop the situation from developing. Utility Model Content
[0004] The purpose of this utility model is to provide a carbon black tail gas sealing device to solve the problems mentioned in the background art, which are that the existing carbon black tail gas sealing devices are insufficient in terms of safety, reliability and automation level, and are difficult to meet the high requirements of modern production for safe production and equipment protection.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a carbon black tail gas sealing device, comprising a carbon black tail gas pipe body, a gate valve mechanism installed at one end of the carbon black tail gas pipe body, the gate valve mechanism comprising a gate valve screw and a gate valve body, the gate valve body being installed at one end of the carbon black tail gas pipe body, the gate valve screw being threadedly connected to the upper internal end of the gate valve body, the tail gas sealing mechanism comprising a drive motor, a main rotor and a secondary rotor, a limit mechanism installed on the upper surface of the gate valve body, the limit mechanism comprising an electric push rod and a limit block, the limit block being fixedly connected to the upper surface of the gate valve body via a fixed flange, a structural groove being formed on the upper surface of the limit block, a drive motor being installed inside the structural groove, the output end of the drive motor being drivenly connected to the main rotor, the secondary rotor being rotatably connected to the middle part of the internal structure groove, and the main rotor and the secondary rotor being meshed with each other through meshing teeth.
[0006] Furthermore, the electric push rod is fixedly connected to both ends of the upper surface of the fixed flange, the limiting block is fixedly installed on the upper side surface of the electric push rod, the output end of the electric push rod passes through the limiting block, the electric push rod and the drive motor are electrically connected to each other through a barometer and an external power supply, and a handwheel is fixedly connected to the upper end of the gate valve screw.
[0007] Furthermore, a connecting rod is fixedly connected between the handwheel and the gate valve screw, and several connecting rods are provided.
[0008] Furthermore, a pressure alarm mechanism is installed at one end of the side surface of the carbon black exhaust pipe. The pressure alarm mechanism includes a barometer, which is installed at one end of the side surface of the carbon black exhaust pipe. A warning light is installed at the upper end of the barometer.
[0009] Furthermore, a display screen is mounted on the side surface of the barometer.
[0010] Furthermore, the gate valve mechanism is fixedly installed at one end of the carbon black tail gas pipe body via a flange structure.
[0011] Furthermore, the drive motor is fixedly mounted on the limit block via a connecting structure.
[0012] Furthermore, the auxiliary impeller is fixedly connected to the side surface of the gate valve screw.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: In this utility model, by setting the tail gas sealing mechanism, when the pressure alarm mechanism detects an abnormality in the tail gas pressure transported inside the carbon black tail gas pipe, it promptly displays the warning light and controls the drive motor of the tail gas sealing mechanism to drive the main rotating wheel to rotate. The main rotating wheel drives the auxiliary rotating wheel to rotate through the meshing teeth, thereby causing the gate valve screw to rotate. Through the rotation of the gate valve screw, the gate valve is closed, thereby stopping the continued transport of tail gas inside the carbon black tail gas pipe. This achieves the purpose of limiting pressure growth, protecting the pipeline system from damage, and effectively preventing tail gas leakage, ensuring the safety of personnel and equipment, and buying time for accident investigation and handling. Attached Figure Description
[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a three-dimensional structural diagram of a carbon black tail gas sealing device proposed in this utility model;
[0016] Figure 2 This is a three-dimensional schematic diagram of the rear side of a carbon black tail gas sealing device proposed in this utility model;
[0017] Figure 3 This is a three-dimensional schematic diagram from another angle of the carbon black tail gas sealing device proposed in this utility model;
[0018] Figure 4 This utility model proposes a carbon black tail gas sealing device. Figure 3 Enlarged view of point A in the middle.
[0019] The attached diagram lists the components represented by each number as follows:
[0020] In the diagram: 1. Carbon black exhaust pipe; 2. Pressure alarm mechanism; 201. Barometer; 202. Display screen; 203. Warning light; 3. Gate valve mechanism; 301. Fixed flange; 302. Gate valve screw; 303. Handwheel; 304. Connecting rod; 4. Limiting mechanism; 401. Electric push rod; 402. Limiting block; 5. Exhaust gas sealing mechanism; 501. Structural groove; 502. Connecting structure; 503. Drive motor; 504. Main rotor; 505. Auxiliary rotor; 506. Engaging teeth. Detailed Implementation
[0021] 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 skilled in the art without creative effort are within the protection scope of the present utility model. Example
[0022] like Figures 1 to 4As shown in the first aspect embodiment of this utility model, a carbon black tail gas sealing device includes a carbon black tail gas pipe body 1. A pressure alarm mechanism 2 is installed at one end of the side surface of the carbon black tail gas pipe body 1. The pressure alarm mechanism 2 includes a barometer 201, which is installed at one end of the side surface of the carbon black tail gas pipe body 1. When the pressure alarm mechanism 2 detects an abnormality in the pressure of the tail gas transported inside the carbon black tail gas pipe body 1, it promptly displays the abnormality through a warning light 203 and controls the drive motor 503 of the tail gas sealing mechanism 5 to drive the main rotating wheel 504 to rotate. The main rotating wheel 504 drives the auxiliary rotating wheel 505 to rotate through the meshing teeth 506, thereby causing the gate valve screw 302 to rotate. Through the rotation of the gate valve screw 302, the gate valve is closed, thereby stopping the continued transport of tail gas inside the carbon black tail gas pipe body 1. This achieves the purpose of limiting pressure growth, protecting the pipeline system from damage, and effectively preventing tail gas leakage, ensuring the safety of personnel and equipment, and providing a basis for accident investigation and handling. At the specified time, a gate valve mechanism 3 is installed at one end of the carbon black exhaust pipe body 1. The gate valve mechanism 3 includes a gate valve screw 302 and a gate valve body. The gate valve body is installed at one end of the carbon black exhaust pipe body 1. The upper end of the gate valve body is threadedly connected to the gate valve screw 302. An exhaust gas sealing mechanism 5 is installed on the side surface of the gate valve screw 302. The exhaust gas sealing mechanism 5 includes a drive motor 503, a main rotor 504, and a secondary rotor 505. A limit mechanism 4 is installed on the upper surface of the gate valve body. The limit mechanism 4 includes... The electric push rod 401 and the limit block 402 are fixedly connected to the upper surface of the gate valve body through the fixed flange 301. The upper surface of the limit block 402 is provided with a structural groove 501. The drive motor 503 is installed inside the structural groove 501. The output end of the drive motor 503 is connected to the main rotating wheel 504. The middle part of the interior of the structural groove 501 is rotatably connected to the auxiliary rotating wheel 505. The main rotating wheel 504 and the auxiliary rotating wheel 505 are meshed with each other through meshing teeth 506.
[0023] The technical effect achieved by the above embodiment is as follows: When the tail gas pressure inside the carbon black tail gas pipe 1 becomes abnormal during the carbon black tail gas transportation process, the pressure alarm mechanism 2 installed on the side surface immediately detects this change. The built-in barometer 201 in the pressure alarm mechanism 2 will immediately activate and flash the warning light 203 to alert the operator. At the same time, the drive motor 503 controlling the tail gas sealing mechanism 5 is activated, which drives the main rotating wheel 504 to rotate, and then drives the auxiliary rotating wheel 505 through the meshing teeth 506, ultimately causing the gate valve screw 302 to rotate. The rotation of the gate valve screw 302 causes the gate valve to close, thereby stopping the continued transportation of tail gas in the carbon black tail gas pipe 1. This process effectively limits the continued increase in pressure, protects the pipeline system from damage, prevents tail gas leakage, and ensures the safety of personnel and equipment. Example
[0024] like Figure 3 and Figure 4 As shown, a carbon black tail gas sealing device includes all the contents of Example 1. Furthermore, an electric push rod 401 is fixedly connected to both ends of the upper surface of the fixed flange 301. A limiting block 402 is fixedly installed on the upper side surface of the electric push rod 401. The output end of the electric push rod 401 passes through the limiting block 402. The electric push rod 401 and the drive motor 503 are electrically connected to each other via a barometer 201 and an external power supply. A handwheel 303 is fixedly connected to the upper end of the gate valve screw 302. A connecting rod 304 is fixedly connected between the handwheel 303 and the gate valve screw 302. 4. Several barometers are provided. A warning light 203 is installed on the upper end of the barometer 201. The barometer 201 is a prior art barometer with an audible and visual alarm function, model PMP1210. A display screen 202 is installed on the side surface of the barometer 201. The display screen 202 displays the air pressure inside the carbon black tail gas pipe 1 in real time. The gate valve mechanism 3 is fixedly installed at one end of the carbon black tail gas pipe 1 through a flange structure. The drive motor 503 is fixedly installed on the limit block 402 through the connection structure 502. The auxiliary rotor 505 is fixedly connected to the side surface of the gate valve screw 302.
[0025] The technical effects achieved by the above embodiments are as follows: When the internal exhaust gas pressure of the carbon black exhaust gas pipe body 1 is abnormal, the pressure alarm mechanism 2 fixed on the side surface is immediately activated. The built-in PMP1210 model barometer 201 detects the pressure change and displays it in real time on the display screen 202. At the same time, the barometer 201 triggers the warning light 203 to flash, reminding the operator of the abnormal pressure. The pipe valve structure promptly shuts off the supply of exhaust gas inside the carbon black exhaust gas pipe body 1. Simultaneously, it controls the extension of the electric push rod 401, so that the output end of the electric push rod 401 is locked in the gap of the connecting rod 304, preventing the handwheel 303 from continuing to rotate and causing the gate valve mechanism 3 to be accidentally opened, resulting in carbon black exhaust gas leakage. When the carbon black exhaust gas pipe body 1 is normally supplying exhaust gas, the output end of the electric push rod 401 is also in an extended state and locked in the gap of the connecting rod 304, which can prevent the gate valve mechanism 3 from being accidentally closed, making the overall structure of the pressure alarm device safer and more reliable.
[0026] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A carbon black tail gas sealing device, comprising a carbon black tail gas pipe body (1), characterized in that: A gate valve mechanism (3) is installed at one end of the carbon black tail gas pipe body (1). The gate valve mechanism (3) includes a gate valve screw (302) and a gate valve body. The gate valve body is installed at one end of the carbon black tail gas pipe body (1). The upper end of the gate valve body is threaded with a gate valve screw (302). A tail gas material sealing mechanism (5) is installed on the side surface of the gate valve screw (302). The tail gas material sealing mechanism (5) includes a drive motor (503), a main rotor (504), and a secondary rotor (505). A limit mechanism (4) is installed on the upper surface of the gate valve body. The limit mechanism (4) includes an electric... The valve body has a push rod (401) and a limiting block (402). The limiting block (402) is fixedly connected to the upper surface of the gate valve body through a fixed flange (301). The upper surface of the limiting block (402) has a structural groove (501). A drive motor (503) is installed inside the structural groove (501). The output end of the drive motor (503) is connected to a main rotating wheel (504). The middle part inside the structural groove (501) is rotatably connected to a secondary rotating wheel (505). The main rotating wheel (504) and the secondary rotating wheel (505) mesh with each other through meshing teeth (506).
2. The carbon black tail gas sealing device according to claim 1, characterized in that: The electric push rod (401) is fixedly connected to both ends of the upper surface of the fixed flange (301). The limiting block (402) is fixedly installed on the upper side surface of the electric push rod (401). The output end of the electric push rod (401) passes through the limiting block (402). The electric push rod (401) and the drive motor (503) are electrically connected to each other through the barometer (201) and the external power supply. The upper end of the gate valve screw (302) is fixedly connected to a handwheel (303).
3. The carbon black tail gas sealing device according to claim 2, characterized in that: A connecting rod (304) is fixedly connected between the handwheel (303) and the gate valve screw (302), and several connecting rods (304) are provided.
4. The carbon black tail gas sealing device according to claim 1, characterized in that: A pressure alarm mechanism (2) is installed at one end of the side surface of the carbon black exhaust pipe body (1). The pressure alarm mechanism (2) includes a barometer (201). The barometer (201) is installed at one end of the side surface of the carbon black exhaust pipe body (1). A warning light (203) is installed at the upper end of the barometer (201).
5. A carbon black tail gas sealing device according to claim 4, characterized in that: The barometer (201) has a display screen (202) mounted on its side surface.
6. The carbon black tail gas sealing device according to claim 1, characterized in that: The gate valve mechanism (3) is fixedly installed at one end of the carbon black tail gas pipe body (1) through a flange structure.
7. A carbon black tail gas sealing device according to claim 1, characterized in that: The drive motor (503) is fixedly mounted on the limit block (402) via the connection structure (502).
8. A carbon black tail gas sealing device according to claim 1, characterized in that: The auxiliary rotor (505) is fixedly connected to the side surface of the gate valve screw (302).