Washing equipment, washing equipment and washing system for dust-containing synthesis gas

Abstract

The utility model provides washing equipment, washing equipment and washing system for dust-containing synthesis gas. The washing equipment comprises a water inlet space pipe, a distribution header, a water outlet device, an ascending pipe and a descending pipe, one end of the water inlet space pipe is connected with a water inlet pipe opening in the gasifier shell, and the other end of the water inlet space pipe is connected with a through hole formed in the side surface of the distribution header in a welded mode so that washing water can be conveyed into the distribution header. The distribution header is a closed container which is made of a seamless stainless steel pipe and is provided with holes in the surface, and is used for storing washing water conveyed through the water inlet space pipe; the water outlet device is made of a seamless stainless steel pipe, one end of the water outlet device is connected with water outlet holes evenly distributed in the center of the upper surface of the distribution header in a welded mode, and the other end of the water outlet device is aligned with the fixing holes in the ascending pipe and penetrates through the through hole to be fixed so that washing water stored in the distribution header can be sprayed. The dust-containing synthesis gas in a cavity formed by the ascending pipe and the descending pipe is washed. The occupied space of a chilling chamber is small, the dust removal efficiency is high, and installation and replacement are convenient.

Description

Technical Field

[0001] The present application relates to the field of coal chemical industry, and in particular to a washing device, a washing device and a washing system for dust-containing synthesis gas. Background Art

[0002] The reuse of coal after gasification can effectively improve the utilization efficiency of coal and reduce the emission of pollutants. This technology is one of the main ways to utilize coal efficiently and cleanly. Coal gasification is an important direction for the development of my country's coal chemical industry.

[0003] The gasification process for preparing syngas is a process in which carbon-containing materials (including coal, petroleum coke, biomass, sludge, garbage and organic solid waste, etc.) and gasifying agents (including pure oxygen, oxygen-enriched, air and steam, etc.) react chemically to produce combustible gas (syngas). A large amount of fly ash particles will be generated during the gasification process, as well as unreacted coal powder and additive particles that do not participate in the reaction. Therefore, purification and dust removal of syngas is a necessary prerequisite for further production downstream.

[0004] At present, the conventional setting for washing synthesis gas in the coal chemical industry is composed of a quenching ring, a venturi, a cyclone separator, and a washing tower. The synthesis gas first passes through the quenching ring in the gasifier and enters the water for the first step of washing. This step will wash away most of the fly ash, slag and other particles carried in the synthesis gas. Then the synthesis gas passes through the venturi and cyclone separator in turn and finally reaches the washing tower. After washing in the washing tower, the dust content in the synthesis gas must be reduced to a certain level to meet the needs of the subsequent system. However, the washing capacity of the venturi, cyclone separator and washing tower is limited. If the dust content in the synthesis gas is too high, it is very easy to cause blockage in these parts. In severe cases, the system needs to be stopped for maintenance, resulting in large economic losses.

[0005] It can be seen that in the synthesis gas washing process, the first step of the quenching ring plays a vital role and directly affects the stable operation of the system. However, most of the modifications in the industry are for post-equipment such as Venturi or cyclone separators. The effect after the modification is not obvious and there is still a great risk. The existing cleaning device for the quenching ring occupies a large space in the quenching chamber, has low dust removal efficiency, and is not easy to install and replace. Utility Model Content

[0006] The purpose of the present application is to provide a scrubbing device for dust-containing synthesis gas to solve or alleviate the problems existing in the above-mentioned prior art.

[0007] In order to achieve the above objectives, this application provides the following technical solutions:

[0008] A washing device for dust-containing synthetic gas, comprising: a water inlet space pipe 1, a distribution header 2, a water outlet 3, an ascending pipe 4, and a downcomer 5; one end of the water inlet space pipe 1 is connected to the water inlet pipe port on the gasifier shell, and the other end is connected to the through hole opened on the side surface of the distribution header 2 by welding, so as to transport washing water to the distribution header 2; the distribution header 2 is a closed container with surface openings made of seamless stainless steel pipe, so as to store the washing water transported through the water inlet space pipe 1; the water outlet 3 is made of seamless stainless steel pipe, and one end is connected to the evenly distributed water outlet holes opened in the center of the upper surface of the distribution header 2 by welding, and the other end is aligned with the fixing hole on the ascending pipe 4 and fixed through the fixing hole, so as to spray the washing water stored in the distribution header 2 to wash the dust-containing synthetic gas in the chamber formed by the ascending pipe 4 and the downcomer 5.

[0009] Optionally, the water inlet space pipe 1 is made of a seamless stainless steel pipe.

[0010] Optionally, the distribution header 2 is formed by bending a seamless stainless steel pipe.

[0011] Optionally, the water outlet 3 includes: a water outlet connecting pipe 31 and a water spray nozzle 32; one end of the water outlet connecting pipe 31 is connected to the evenly distributed water outlet holes opened in the center of the upper surface of the distribution collection box 2 by welding, and the other end is fixed with the water spray nozzle 32 to transport the washing water in the distribution collection box 2 to the water spray nozzle 32; the water spray nozzle 32 sprays the washing water to form water mist to wash the dust-containing synthesis gas.

[0012] Optionally, the water spray nozzle 32 includes: a nozzle cap 321 and a nozzle 322; one end of the nozzle cap 321 is fixed to the water outlet connecting pipe 31, and the other end is fixed with the nozzle 322 to spray the washing water.

[0013] Optionally, the nozzle cap 321 is detachably fixed to one end of the water outlet connecting pipe 31 , and the water spray nozzle 32 can adjust the flow rate of the washing water sprayed according to the size of the nozzle cap 321 .

[0014] Optionally, the nozzle 322 is a wide-angle fan or cone with a set width, so that the surface expansion angle of the washing water sprayed by the water spray nozzle 32 is 100° to 140°, and the direction of the sprayed washing water forms an angle of 45° to 60° with the direction perpendicular to the ground.

[0015] Optionally, the cylinder of the riser 4 is provided with 1 to 4 layers of fixing holes, the bottom layer of holes being located at

[0016] The layer is placed higher than the normal liquid level of the quenching chamber in the gasifier, and the height of each layer is 300 to 500 mm.

[0017] The present application also provides a washing device, including: a water inlet space pipe, a distribution header, and a water outlet; one end of the water inlet space pipe is connected to the water inlet pipe port on the gasifier shell, and the other end is connected to the through hole opened on the side surface of the distribution header by welding, so as to transport the washing water into the distribution header; the distribution header is a closed container with surface openings made of seamless stainless steel pipe, so as to store the washing water transported through the water inlet space pipe; one end of the water outlet is connected to the evenly distributed water outlet holes opened in the center of the upper surface of the distribution header by welding, and the other end is aligned with the fixing hole on the nozzle fixing structure and fixed through the fixing hole, so as to spray the washing water stored in the distribution header to wash the objects to be cleaned.

[0018] The present application also provides a washing system, which includes the dust-containing synthesis gas washing device described in any one of the present applications.

[0019] The present application provides a scrubbing device, a scrubbing device and a scrubbing system for dust-containing synthetic gas.

[0020] The scrubbing equipment for dusty synthetic gas comprises: a water inlet space pipe 1, a distribution header 2, a water outlet 3, an ascending pipe 4, and a descending pipe 5; one end of the water inlet space pipe 1 is connected to the water inlet pipe port on the gasifier shell, and the other end is connected to the through hole opened on the side surface of the distribution header 2 by welding, so as to transport the scrubbing water into the distribution header 2; the distribution header 2 is a closed container with a surface opening made of a seamless stainless steel pipe, so as to store the scrubbing water transported through the water inlet space pipe 1; the water outlet 3 is made of a seamless stainless steel pipe, and one end is connected to the uniformly distributed water outlet holes opened in the center of the upper surface of the distribution header 2 by welding, and the other end is aligned with the fixing hole on the ascending pipe 4 and fixed through the fixing hole, so as to spray the scrubbing water stored in the distribution header 2, and wash the dusty synthetic gas in the chamber formed by the ascending pipe 4 and the descending pipe 5. The space occupied in the quenching chamber is small, the dust removal efficiency is high, and the installation and replacement are convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which constitute a part of this application, are used to provide a further understanding of the application.

[0022] The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute improper limitations on the present application.

[0023] Figure 1 This is a schematic diagram of the overall structure of a dust-containing synthesis gas washing device according to an embodiment of the present application;

[0024] Figure 2 This is a schematic diagram of the side structure of a dust-containing synthesis gas washing device according to an embodiment of the present application;

[0025] Figure 3 This is a partial structural schematic diagram of a dust-containing synthesis gas washing device according to an embodiment of the present application. DETAILED DESCRIPTION

[0026] The present application will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments. Each example is provided by way of explanation of the present application and does not limit the present application. In fact, it will be clear to those skilled in the art that modifications and variations may be made in the present application without departing from the scope or spirit of the present application. For example, a feature shown or described as a part of an embodiment may be used in another embodiment to produce yet another embodiment. Therefore, it is desired that the present application includes such modifications and variations within the scope of the appended claims and their equivalents.

[0027] In the description of this application, the terms "longitudinal", "lateral", "upper", "lower", "front", "rear",

[0028] The directions or positional relationships indicated by "left", "right", "vertical", "horizontal", "top", "bottom", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and do not require that the present application must be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present application. The terms "connected", "connected", and "set" used in this application should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be directly connected or indirectly connected through an intermediate component; for ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0029] Figure 1 This is a schematic diagram of the structure of a dust-containing synthesis gas washing device according to an embodiment of the present application. Figure 2 This is a schematic diagram of the side structure of a dust-containing synthesis gas washing device according to an embodiment of the present application; Figure 3 This is a partial structural schematic diagram of a dust-containing synthesis gas washing device according to an embodiment of the present application.

[0030] like Figure 1-3As shown, a washing device for dusty synthetic gas comprises: a water inlet space pipe 1, a distribution header 2, a water outlet 3, an ascending pipe 4, and a descending pipe 5; one end of the water inlet space pipe 1 is connected to the water inlet pipe port on the gasifier shell, and the other end is connected to the through hole opened on the side surface of the distribution header 2 by welding, so as to transport the washing water into the distribution header 2; the distribution header 2 is a closed container with a surface opening made of a seamless stainless steel pipe, so as to store the washing water transported through the water inlet space pipe 1; the water outlet 3 is made of a seamless stainless steel pipe, and one end is connected to the uniformly distributed water outlet holes opened in the center of the upper surface of the distribution header 2 by welding, and the other end is aligned with the fixing hole on the ascending pipe 4 and fixed through the fixing hole, so as to spray the washing water stored in the distribution header 2 to wash the dusty synthetic gas in the chamber formed by the ascending pipe 4 and the descending pipe 5. Because the equipment is made of seamless stainless steel pipe, it has the characteristics of corrosion resistance, high temperature resistance, pressure resistance, etc., so it can ensure the long-term stable operation of the equipment. Secondly, the water inlet space pipe 1 is connected to the distribution header 2, the water outlet 3 and other components by welding to ensure a tight connection and prevent leakage, thereby improving the reliability and stability of the equipment. Thirdly, the evenly distributed water outlet holes on the water outlet 3 can evenly spray the washing water into the chamber of the dust-containing synthesis gas, effectively washing the dust-containing synthesis gas and improving the washing efficiency. Furthermore, through the operation of the washing equipment, the dust in the dust-containing synthesis gas can be effectively cleaned, reducing blockage accidents caused by excessive dust. Finally, the equipment is connected by welding, with a simple and clear structure, easy maintenance and cleaning, which can reduce maintenance costs and maintenance time.

[0031] In this embodiment, the water inlet space pipe 1 is made of a seamless stainless steel pipe. The embodiment of this application does not limit the size of the pipe mouth, the length of the pipe and the spatial angle, and can be designed according to the actual size of different gasifiers. Seamless stainless steel has good corrosion resistance and can effectively resist corrosive substances that may exist in the washing process, thereby extending the service life of the equipment.

[0032] Stainless steel has high strength and can withstand high water pressure and external forces, ensuring the stability and safety of the equipment during operation. In addition, the surface of stainless steel is smooth and flat, not easy to adhere to dirt, easy to clean, which is conducive to keeping the equipment hygienic and clean.

[0033] In this embodiment, the distribution header 2 is formed by bending a seamless stainless steel pipe. The specific diameter of the distribution header 2 is not specifically limited in the application, and needs to be designed according to the diameter of the gasifier quench ring riser 4. In this application, the stainless steel pipe is easy to be processed into various shapes and has strong plasticity, which can meet the design requirements of distribution boxes of different sizes and shapes.

[0034] In this embodiment, the water outlet 3 comprises: a water outlet connecting pipe 31 and a water spray nozzle 32;

[0035] One end of the water outlet connecting pipe 31 is connected to the evenly distributed water outlet holes opened in the center of the upper surface of the distribution header 2 by welding, and the other end is fixed with the water spray nozzle 32 to transport the washing water in the distribution header 2 to the water spray nozzle 32; the water spray nozzle 32 sprays the washing water to form water mist to wash the dust-containing synthetic gas. The water outlet connecting pipe 31 is connected to the evenly distributed water outlet holes opened in the center of the upper surface of the distribution header 2 by welding, ensuring that the washing water can flow out evenly from multiple water outlet holes, thereby improving the washing effect and efficiency. Moreover, the other end of the water outlet connecting pipe 31 is fixed with the water spray nozzle 32, which can ensure that the water spray nozzle 32 will not loosen or shift, thereby ensuring that the washing water can be accurately transported to the water spray nozzle 32, avoiding leakage or waste of water flow. In addition, the water spray nozzle 32 sprays the washing water to form water mist, which can better cover the surface of the dust-containing synthetic gas, thereby improving the washing effect and cleanliness.

[0036] In this embodiment, the water spray nozzle 32 includes: a nozzle cap 321 and a nozzle 322; one end of the nozzle cap 321 is fixed to the water outlet connecting pipe 31, and the other end is fixed with a nozzle 322 to spray the washing water. The design of the nozzle cap 321 can effectively protect the nozzle 322, prevent the nozzle 322 from being affected by external debris or damage, and extend the service life of the nozzle. The other end of the nozzle cap 321 is fixed with a nozzle 322, and the nozzle 322 can spray the washing water onto the surface to be cleaned, forming a uniform water flow, thereby improving the cleaning effect and efficiency.

[0037] In this embodiment, the nozzle cap 321 is detachably fixed to one end of the water outlet connecting pipe 31, and the water spray nozzle 32 is used to adjust the flow rate of the washing water sprayed according to the size of the nozzle cap 321. Specifically, in the present application, the nozzle cap 321 is connected to one end of the water outlet pipe by welding or threaded connection. Among them, the design of the detachable nozzle cap 321 makes it more convenient to replace or clean the nozzle cap 321, and improves the convenience of maintenance and care. Moreover, by adjusting the spraying water flow rate according to the size of the nozzle cap 321, the spraying intensity can be adjusted according to specific needs, adapting to different cleaning scenes, and improving the cleaning effect. In addition, adjusting the water flow rate according to the size of the nozzle cap 321 can achieve more precise control to ensure that the cleaning effect reaches the best state.

[0038] In this embodiment, the nozzle 322 is a wide-angle fan or cone with a set width, so that the washing water surface sprayed by the water spray nozzle 32 has an expansion angle of 100° to 140°, and the direction of the washing water sprayed forms an angle of 45° to 60 degrees with the direction perpendicular to the ground. The direction of the washing water sprayed is toward the downcomer 5. In this application, the set width is determined according to the application scenario, and the embodiment of this application is not limited to uniqueness. Among them, the nozzle 322 is designed to be a wide-angle fan or cone, which can achieve a larger range of spraying, a wider coverage area, and improved cleaning efficiency. In addition, the water spray surface with an expansion angle of 100° to 140° can ensure that the washing water evenly covers the cleaning target surface, avoids dead corners, and improves the cleaning quality. Finally, the water spray direction forming an angle of 45° to 60° with the direction perpendicular to the ground can better flush the target surface, effectively remove dirt, and improve the cleaning effect.

[0039] In this embodiment, 1 to 4 layers of fixed holes are provided on the cylinder of the riser 4, the bottom layer of holes is located higher than the normal liquid level of the quenching chamber in the gasifier, and each layer is 300 to 500 mm in height. By arranging multiple layers of fixed holes at different heights, the gas can be more evenly distributed in the riser 4, ensuring that the gas and liquid are in full contact, thereby improving the gas-liquid mass transfer efficiency. The design of each layer with a height interval of 300 to 500 mm can be adjusted according to specific circumstances, and is suitable for gasifiers of different specifications and requirements, with strong versatility. In addition, the bottom layer of holes is located higher than the normal liquid level of the quenching chamber, which can prevent the gas from entering the quenching chamber and causing liquid level fluctuations, thereby maintaining stable operation of the system.

[0040] The present application also provides a washing device, comprising: a water inlet space pipe 1, a distribution header 2, and a water outlet 3; one end of the water inlet space pipe 1 is connected to the water inlet pipe port on the gasifier shell, and the other end is connected to the through hole opened on the side surface of the distribution header 2 by welding, so as to transport the washing water into the distribution header 2; the distribution header 2 is a closed container with holes on the surface made of a seamless stainless steel pipe, so as to store the washing water transported through the water inlet space pipe 1; one end of the water outlet 3 is connected to the evenly distributed water outlet holes opened in the center of the upper surface of the distribution header 2 by welding, and the other end is aligned with the fixing hole on the nozzle fixing structure and is fixed through the fixing hole, so as to spray the washing water stored in the distribution header 2,

[0041] The nozzle fixing structure can be the riser 4 in the above embodiment.

[0042] The present application also provides a washing system, which includes the dust-containing synthesis gas washing device described in any one of the present applications.

[0043] The present application provides a scrubbing device, a scrubbing device and a scrubbing system for dust-containing synthetic gas.

[0044] The scrubbing equipment for dusty synthetic gas comprises: a water inlet space pipe 1, a distribution header 2, a water outlet 3, an ascending pipe 4, and a descending pipe 5; one end of the water inlet space pipe 1 is connected to the water inlet pipe port on the gasifier shell, and the other end is connected to the through hole opened on the side surface of the distribution header 2 by welding, so as to transport the scrubbing water into the distribution header 2; the distribution header 2 is a closed container with a surface opening made of a seamless stainless steel pipe, so as to store the scrubbing water transported through the water inlet space pipe 1; the water outlet 3 is made of a seamless stainless steel pipe, and one end is connected to the uniformly distributed water outlet holes opened in the center of the upper surface of the distribution header 2 by welding, and the other end is aligned with the fixing hole on the ascending pipe 4 and fixed through the fixing hole, so as to spray the scrubbing water stored in the distribution header 2, and wash the dusty synthetic gas in the chamber formed by the ascending pipe 4 and the descending pipe 5. The space occupied in the quenching chamber is small, the dust removal efficiency is high, and the installation and replacement are convenient.

[0045] It should be noted that the term "comprising" in the specification and claims of the present application and the above-mentioned drawings is intended to cover non-exclusive inclusions. In the present application, the orientation or positional relationship indicated by the terms "upper", "lower", "vertical", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings. These terms are mainly for better describing the present application and its embodiments, and are not used to limit the indicated components to have a specific orientation. "First", "second", etc. are for distinction, not for limitation of quantity. For those of ordinary skill in the art, the specific meanings of these terms in the present application can be understood according to the specific circumstances.

[0046] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A scrubbing device for dusty synthesis gas, characterized in that: include: Water inlet space pipe (1), distribution header (2), water outlet (3), riser (4), downcomer (5); One end of the water inlet space pipe (1) is connected to the water inlet pipe opening on the gasifier shell, and the other end is connected to the through hole opened on the side surface of the distribution header (2) by welding, so as to transport the washing water into the distribution header (2); The distribution header (2) is a closed container made of a seamless stainless steel pipe with holes on the surface, so as to store the washing water transported through the water inlet space pipe (1); The water outlet (3) is made of a seamless stainless steel pipe, and one end is connected to the evenly distributed water outlet holes opened at the center of the upper surface of the distribution header (2) by welding, and the other end is aligned with the fixing hole on the riser (4) and fixed through the fixing hole to spray the washing water stored in the distribution header (2) to wash the dust-containing synthesis gas in the chamber formed by the riser (4) and the downcomer (5).

2. The scrubbing device for dust-containing synthesis gas according to claim 1, characterized in that: The water inlet space pipe (1) is made of a seamless stainless steel pipe.

3. The scrubbing device for dust-containing synthesis gas according to claim 1, characterized in that: The distribution header (2) is formed by bending a seamless stainless steel pipe.

4. The scrubbing device for dust-containing synthetic gas according to claim 1, characterized in that: The water outlet (3) comprises: a water outlet connecting pipe (31) and a water spray nozzle (32); One end of the water outlet connecting pipe (31) is connected to the evenly distributed water outlet holes opened at the center of the upper surface of the distribution header (2) by welding, and the other end is fixed with the water spray nozzle (32) to transport the washing water in the distribution header (2) to the water spray nozzle (32); The water spray nozzle (32) sprays the washing water to form water mist to wash the dust-containing synthesis gas.

5. The scrubbing device for dust-containing synthetic gas according to claim 4, characterized in that: The water spray nozzle (32) comprises: a nozzle cap (321) and a nozzle (322); One end of the spray head cap (321) is fixed to the water outlet connecting pipe (31), and the other end is fixed with a nozzle (322) for spraying the washing water.

6. The scrubbing device for dust-containing synthesis gas according to claim 5, characterized in that: The spray head cap (321) is detachably fixed to one end of the water outlet connecting pipe (31), and the water spray head (32) adjusts the flow rate of the washing water sprayed according to the size of the spray head cap (321).

7. The scrubbing device for dust-containing synthetic gas according to claim 5, characterized in that: The nozzle (322) is a wide-angle fan or cone with a set width, so that the liquid surface of the washing water sprayed by the water spray nozzle (32) has an expansion angle of 100° to 140°, and the direction of the sprayed washing water forms an angle of 45° to 60° with the direction perpendicular to the ground.

8. The scrubbing device for dusty synthetic gas according to claim 1, characterized in that: The cylinder of the riser (4) is provided with 1 to 4 layers of fixed holes, the bottom layer of holes is located higher than the normal liquid level of the quenching chamber in the gasifier, and the height of each layer is 300 to 500 mm.

9. A washing device, characterized in that: include: Water inlet space pipe, distribution header, water outlet; One end of the water inlet space pipe is connected to the water inlet port on the gasifier shell, and the other end is connected to the through hole opened on the side surface of the distribution header by welding, so as to transport the washing water into the distribution header; The distribution header is a closed container with holes on the surface made of seamless stainless steel pipe to store the washing water transported through the water inlet space pipe; One end of the water outlet is connected to the evenly distributed water outlet holes opened in the center of the upper surface of the distribution collection box by welding, and the other end is aligned with the fixing hole on the nozzle fixing structure and fixed through the fixing hole to spray the washing water stored in the distribution collection box to wash the objects to be cleaned.

10. A washing system, characterized in that: The invention comprises the dust-containing synthesis gas washing device as described in any one of claims 1 to 8.

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