Pulverized coal high-pressure gasification furnace for safe production
By introducing a carbon discharge and pulverizing component and a flow exhaust component into the pulverized coal high-pressure gasifier, the problems of carbon residue discharge and syngas impurity treatment during the pressurized gasification of pulverized coal have been solved, thus achieving stable operation and safe production of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- AEROSPACE HYDROGEN CANGZHOU GAS CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-05-19
AI Technical Summary
During the pressurized gasification of pulverized coal, solid wastes such as slag produced need to be discharged in a timely and effective manner. The syngas may contain impurities, which may affect the stable operation of the gasifier and safe production.
A high-pressure coal gasifier was designed, comprising a coal pulverizing component and a flow exhaust component. The coal pulverizing component processes coal slag through pulverizing discs and a conveying auger, while the flow exhaust component accelerates gas flow through a blower and optimizes the exhaust process using a replacement pipe and a shielding hood.
It effectively crushes carbon slag, reduces the risk of blockage, improves exhaust efficiency, ensures stable equipment operation, reduces safety hazards, and improves the working efficiency of the gasifier.
Smart Images
Figure CN224258566U_ABST
Abstract
Description
Technical Field
[0001] The embodiments disclosed herein relate to the field of pulverized coal processing technology, and more specifically, to a safe and efficient high-pressure pulverized coal gasification furnace. Background Technology
[0002] Coal gasification technology is one of the key technologies for the clean and efficient utilization of coal. After years of development, it has evolved from traditional fixed-bed gasification technology to fluidized-bed gasification technology, and now to the advanced entrained gasification technology. Entrained gasification has become one of the most advanced coal gasification technologies in the world today due to its advantages such as wide adaptability to coal types, high gasification efficiency, high carbon conversion rate, and low pollutant emissions. As a type of entrained gasification technology, pulverized coal pressurized gasification technology has the advantages of low oxygen consumption, low coal consumption, and high effective gas composition.
[0003] During the pressurized gasification of pulverized coal, a certain amount of solid waste such as char slag is generated, which needs to be discharged from the gasifier in a timely and effective manner. At the same time, the syngas produced by gasification may contain impurities, so the exhaust gas needs to be treated to improve the quality of the syngas. Furthermore, optimizing the char removal and exhaust processes is crucial for the stable operation and safe production of the gasifier. Utility Model Content
[0004] To overcome the above-mentioned defects, the embodiments of this disclosure provide a safe and efficient high-pressure coal gasifier, which solves the technical problems in the prior art where a certain amount of solid waste such as carbon slag is generated during the pressurized gasification of pulverized coal, which needs to be discharged from the gasifier in a timely and effective manner, and the syngas produced by gasification may contain impurities.
[0005] According to one aspect, at least one embodiment of this disclosure provides a safe and efficient pulverized coal high-pressure gasification furnace, comprising:
[0006] The furnace body has an exhaust pipe at its upper end.
[0007] A carbon discharge and pulverizing assembly is disposed on the lower end face of the furnace body;
[0008] A flow exhaust assembly, wherein the flow exhaust assembly is disposed on the exhaust pipe;
[0009] The carbon discharge and crushing assembly includes a carbon discharge pipe, a motor frame at the lower end of the carbon discharge pipe, a motor disc on the motor frame, an output motor on the upper surface of the motor disc, an output end of the output motor inserted into the carbon discharge pipe, a conveying auger at the output end of the output motor, and crushing plates on the inner sidewall of the carbon discharge pipe, which are embedded in the gaps of the conveying auger.
[0010] As a further technical solution, the sidewall corners of the pulverizing disc are provided with pulverizing tips, and the number of pulverizing discs is several, with multiple pulverizing discs evenly arranged along a straight longitudinal direction.
[0011] As a further technical solution, the flow exhaust assembly includes a replacement pipe, which is installed on the exhaust pipe. A pressurization pipe is connected to the side wall of the exhaust pipe. A pressurization frame is provided inside the pressurization pipe, and a blower is provided inside the pressurization frame.
[0012] As a further technical solution, an interception cover is provided on the inner wall of the replacement tube. The interception cover is a one-way valve and is located in the middle section of the replacement tube.
[0013] As a further technical solution, the upper end face of the exhaust pipe is provided with a plug hole, and both ends of the replacement pipe are inserted into the plug hole, and the replacement pipe and the exhaust pipe are sealed together.
[0014] As a further technical solution, the furnace body and the exhaust pipe are connected, and the exhaust pipe is located at the inner top of the furnace body.
[0015] As a further technical solution, the side wall of the furnace body is provided with a feed inlet, and a feed hood is connected to the feed inlet, with the feed hood communicating with the feed inlet.
[0016] As a further technical solution, the sidewall of the conveying auger is sealed and fitted to the inner sidewall of the carbon discharge pipe, the carbon discharge pipe has an L-shaped structure, and the conveying auger is located at the vertical part of the carbon discharge pipe.
[0017] As a further technical solution, the interceptor cover is provided with an expansion port.
[0018] As a further technical solution, a discharge port is provided at the lower end of the furnace body, and the discharge port is connected to the carbon discharge pipe.
[0019] The beneficial effects of the embodiments disclosed herein are as follows:
[0020] 1. In this disclosure, the conveying auger is sealed and fitted to the inner wall of the carbon discharge pipe to prevent the leakage of uncrushed carbon slag and harmful gases, thereby reducing the probability of safety accidents such as explosions. The design of the crushing disc and crushing tip not only effectively crushes and discharges carbon slag, avoiding large pieces of carbon slag from clogging the pipeline and affecting operation, but also reduces equipment failures and safety hazards caused by blockages, ensuring stable operation of the equipment.
[0021] 2. In this disclosure, the blowing fan blows air into the exhaust pipe to accelerate the flow of syngas and improve exhaust efficiency. The replacement pipe is easy to disassemble and replace, facilitating the cleaning and maintenance of the exhaust system, ensuring a smooth exhaust flow, and improving the overall working efficiency of the gasifier. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.
[0023] Figure 1 This is a schematic diagram of a structure in one embodiment of the present disclosure;
[0024] Figure 2 This is a cross-sectional view of the furnace body disclosed herein;
[0025] Figure 3 This is a side view of the conveyor auger disclosed herein;
[0026] Figure 4 This is an isometric view of the pulverized material disclosed herein;
[0027] Figure 5 Appendix to this disclosure Figure 2 Enlarged view of part A;
[0028] In the diagram: 1. Furnace body; 2. Exhaust pipe; 3. Carbon discharge and crushing assembly; 3-1. Carbon discharge pipe; 3-2. Motor frame; 3-3. Motor disc; 3-4. Output motor; 3-5. Conveying auger; 3-6. Crushing disc; 3-7. Crushing tip; 4. Flow exhaust assembly; 4-1. Replacement pipe; 4-2. Pressurizing pipe; 4-3. Pressurizing frame; 4-4. Air blower; 4-5. Interception cover; 4-6. Insertion hole; 5. Feed inlet; 6. Feed cover; 7. Expansion port; 8. Discharge port. Detailed Implementation
[0029] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.
[0030] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."
[0031] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.
[0032] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0033] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.
[0034] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0035] like Figures 1-5 As shown, this disclosure illustrates a safe and efficient pulverized coal high-pressure gasification furnace, comprising:
[0036] Furnace body 1, with an exhaust pipe 2 installed at the upper end of furnace body 1;
[0037] Carbon discharge and crushing component 3 is installed on the lower end face of furnace body 1;
[0038] A flow exhaust assembly 4 is disposed on the exhaust pipe 2;
[0039] The carbon discharge and crushing assembly 3 includes a carbon discharge pipe 3-1, a motor frame 3-2 is provided at the lower end of the carbon discharge pipe 3-1, a motor disk 3-3 is provided on the motor frame 3-2, an output motor 3-4 is provided on the upper end of the motor disk 3-3, the output end of the output motor 3-4 is inserted into the carbon discharge pipe 3-1, a conveying auger 3-5 is provided at the output end of the output motor 3-4, and a crushing plate 3-6 is provided on the inner side wall of the carbon discharge pipe 3-1, the crushing plate 3-6 is embedded in the gap of the conveying auger 3-5.
[0040] The flow exhaust assembly 4 includes a replacement pipe 4-1, which is installed on the exhaust pipe 2. The side wall of the exhaust pipe 2 is connected to a pressurization pipe 4-2. A pressurization frame 4-3 is installed inside the pressurization pipe 4-2, and a blower 4-4 is installed inside the pressurization frame 4-3.
[0041] In some examples, the exhaust pipe 2 is installed at the top of the furnace body 1, ensuring a tight and seamless connection between the furnace body 1 and the exhaust pipe 2, and ensuring that the two are internally connected. The exhaust pipe 2 should be located at a suitable position at the top inside the furnace body 1.
[0042] Install the motor frame 3-2 at the lower end of the carbon discharge pipe 3-1, install the motor disk 3-3 on the motor frame 3-2, and install the output motor 3-4 on the upper end face of the motor disk 3-3. Insert the output end of the output motor 3-4 into the carbon discharge pipe 3-1, and install the conveying auger 3-5. Ensure that the side wall of the conveying auger 3-5 is sealed and fitted with the inner side wall of the carbon discharge pipe 3-1. The carbon discharge pipe 3-1 has an L-shaped structure, ensuring that the conveying auger 3-5 is located in the vertical part of the carbon discharge pipe 3-1.
[0043] Install a replacement pipe 4-1 on the exhaust pipe 2, connect a pressurization pipe 4-2 to the side wall of the exhaust pipe 2, install a pressurization frame 4-3 inside the pressurization pipe 4-2, and install a blower 4-4 inside the pressurization frame 4-3.
[0044] like Figures 1-5 As shown, in this embodiment, the side wall corners of the pulverizing disc 3-6 are provided with pulverizing tips 3-7, and the number of pulverizing discs 3-6 is several, with multiple pulverizing discs 3-6 evenly arranged in a straight longitudinal direction.
[0045] In some examples, crushing discs 3-6 are installed on the inner wall of the carbon discharge pipe 3-1, so that they are embedded in the gap of the conveying auger 3-5. Multiple crushing discs 3-6 are evenly arranged in a straight longitudinal direction, and the crushing tips 3-7 at the corners of the side walls of the crushing discs 3-6 are properly positioned.
[0046] For example, such as Figure 2As shown, the inner wall of the replacement pipe 4-1 is provided with an interceptor cover 4-5, which is a one-way valve. The interceptor cover 4-5 is located in the middle section of the replacement pipe 4-1. The upper end face of the exhaust pipe 2 is provided with a plug hole 4-6. Both ends of the replacement pipe 4-1 are inserted into the plug hole 4-6, and the replacement pipe 4-1 and the exhaust pipe 2 are sealed together.
[0047] In some examples, an interceptor shroud 4-5 is installed in the middle section of the inner wall of the replacement pipe 4-1. The interceptor shroud 4-5 is a one-way valve. Both ends of the replacement pipe 4-1 are inserted into the insertion holes 4-6 on the upper end face of the exhaust pipe 2 to ensure a sealed connection between the replacement pipe 4-1 and the exhaust pipe 2.
[0048] For example, such as Figure 2 As shown, the furnace body 1 is connected to the exhaust pipe 2. The exhaust pipe 2 is located at the top inner part of the furnace body 1. The side wall of the furnace body 1 is provided with a feed inlet 5. A feed hood 6 is connected to the feed inlet 5. The feed hood 6 is connected to the feed inlet 5.
[0049] In some examples, a feed hood 6 is connected to the feed inlet 5 on the side wall of the furnace body 1 to ensure that the feed hood 6 is connected to the feed inlet 5 and to ensure a smooth feeding process.
[0050] For example, such as Figure 2 As shown, the side wall of the conveying auger 3-5 is sealed and fitted with the inner side wall of the carbon discharge pipe 3-1. The carbon discharge pipe 3-1 has an L-shaped structure, and the conveying auger 3-5 is located at the vertical part of the carbon discharge pipe 3-1.
[0051] For example, such as Figure 5 As shown, the interceptor cover 4-5 is provided with an expansion port 7.
[0052] In some examples, ensure that the expansion port 7 on the interceptor shroud 4-5 is installed correctly; the expansion port is used to divert gas in case of emergency.
[0053] For example, such as Figure 2 As shown, a discharge port 8 is provided at the lower end of the furnace body 1, and the discharge port 8 is connected to the carbon discharge pipe 3-1.
[0054] In some examples, a carbon discharge pipe 3-1 is connected to the discharge port 8 at the lower end of the furnace body 1 to ensure that the two are connected.
[0055] During operation, pulverized coal is fed into the furnace body 1 through the feed hood 6, where it undergoes a high-pressure gasification reaction. The gas generated inside the furnace is discharged through the exhaust pipe 2. The blower 4-4 is turned on to pressurize the gas in the exhaust pipe 2 and accelerate its flow. The interceptor hood 4-5 prevents backflow of gas, and the expansion port 7 helps the gas pass smoothly through the interceptor hood 4-5. The carbon slag after gasification enters the carbon discharge pipe 3-1 through the discharge port 8. The output motor 3-4 is started to drive the conveying auger 3-5 to rotate and transport the carbon slag out. During the conveying process, the crushing discs 3-6 and the crushing tips 3-7 crush the carbon slag, improving the carbon discharge efficiency.
[0056] In this technical solution, carbon deposits will form on the replacement pipe 4-1 after long-term use. These carbon deposits are extremely difficult to clean. The replacement pipe 4-1 can be directly replaced with a new pipe to continue using the system.
[0057] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.
Claims
1. A safe and efficient pulverized coal high-pressure gasification furnace, characterized in that, include: Furnace body (1), the upper end of which is provided with an exhaust pipe (2); Carbon discharge crushing assembly (3), wherein the carbon discharge crushing assembly (3) is disposed on the lower end face of the furnace body (1); A flow exhaust assembly (4) is disposed on the exhaust pipe (2); The carbon discharge and crushing assembly (3) includes a carbon discharge pipe (3-1), a motor frame (3-2) is provided at the lower end of the carbon discharge pipe (3-1), a motor disk (3-3) is provided on the motor frame (3-2), an output motor (3-4) is provided on the upper end face of the motor disk (3-3), the output end of the output motor (3-4) is inserted into the carbon discharge pipe (3-1), a conveying auger (3-5) is provided at the output end of the output motor (3-4), and a crushing plate (3-6) is provided on the inner side wall of the carbon discharge pipe (3-1), the crushing plate (3-6) is embedded in the gap of the conveying auger (3-5).
2. The safe production pulverized coal high-pressure gasification furnace according to claim 1, characterized in that, The sidewalls of the pulverizing discs (3-6) are provided with pulverizing tips (3-7), and there are several pulverizing discs (3-6), which are evenly arranged in a straight longitudinal direction.
3. The safe production pulverized coal high-pressure gasification furnace according to claim 1, characterized in that, The flow exhaust assembly (4) includes a replacement pipe (4-1), which is mounted on the exhaust pipe (2). The side wall of the exhaust pipe (2) is connected to a pressurization pipe (4-2). A pressurization frame (4-3) is provided inside the pressurization pipe (4-2), and a blower (4-4) is provided inside the pressurization frame (4-3).
4. A safe pulverized coal high-pressure gasification furnace according to claim 3, characterized in that, The inner wall of the replacement pipe (4-1) is provided with an interceptor cover (4-5), which is a one-way valve and is located in the middle section of the replacement pipe (4-1).
5. A safe pulverized coal high-pressure gasification furnace according to claim 3, characterized in that, The upper end face of the exhaust pipe (2) is provided with a plug hole (4-6), and both ends of the replacement pipe (4-1) are inserted into the plug hole (4-6), and the replacement pipe (4-1) and the exhaust pipe (2) are sealed together.
6. A safe pulverized coal high-pressure gasification furnace according to claim 1, characterized in that, The furnace body (1) is connected to the exhaust pipe (2), and the exhaust pipe (2) is located at the inner top of the furnace body (1).
7. A safe pulverized coal high-pressure gasification furnace according to claim 1, characterized in that, The furnace body (1) has a feed inlet (5) on its side wall, and a feed hood (6) is connected to the feed inlet (5). The feed hood (6) is connected to the feed inlet (5).
8. A safe pulverized coal high-pressure gasification furnace according to claim 1, characterized in that, The side wall of the conveying auger (3-5) is sealed and fitted with the inner side wall of the carbon discharge pipe (3-1). The carbon discharge pipe (3-1) has an L-shaped structure, and the conveying auger (3-5) is located at the vertical part of the carbon discharge pipe (3-1).
9. A safe pulverized coal high-pressure gasification furnace according to claim 4, characterized in that, An expansion port (7) is provided on the interceptor cover (4-5).
10. A safe pulverized coal high-pressure gasification furnace according to claim 1, characterized in that, The lower end of the furnace body (1) is provided with a discharge port (8), which is connected to the carbon discharge pipe (3-1).