Quenching device for gasification reactor

Abstract

The utility model relates to gasification reaction furnace technical field, and disclose a kind of quenching device of gasification reaction furnace, the device is made of processing tank, quenching box, quenching mechanism and air return mechanism, in quenching mechanism, water tank, water pump and atomizing nozzle work in cooperation, after material and synthesis gas enter quenching box, atomizing nozzle is rapidly atomized cooling to it, and multiple groups of different orientation atomizing nozzle ensure uniform cover high-temperature fluid, processing tank bottom motor drive stirring board, make cooling medium and material high-efficiency mixing, and stirring component uses high-temperature resistant material, air return mechanism passes through the air return of quenching box top four corners, suction fan, and suction pipe, exhaust fan and air outlet pipe, in material processing, extract and discharge the synthesis gas after cooling, compared with prior art, the device can realize uniform quenching, improve cooling efficiency, effectively discharge high-temperature synthesis gas simultaneously, improve overall working efficiency, also convenient for residue recovery, with good application prospect.

Description

Technical Field

[0001] This utility model relates to the field of gasification reactor technology, specifically to a quenching device for a gasification reactor. Background Technology

[0002] In the gasification processes of raw materials such as coal and biomass, the high-temperature syngas at the gasification reactor outlet needs to be cooled rapidly to terminate side reactions, protect downstream equipment, and recover heat. The quench unit is the core equipment. As gasification technology develops towards larger scale and higher efficiency, the existing equipment can no longer meet the higher requirements of process upgrades for cooling uniformity and equipment operation and maintenance efficiency in terms of slag-water separation effect, long-term operational stability, and energy recovery efficiency. There is an urgent need to optimize the structural design to break through the bottleneck.

[0003] According to a patent application published on the internet (authorization announcement number: CN216614541U), "This utility model relates to a quenching device for a molten slag gasification reactor. This utility model belongs to the fields of coal chemical industry and coke (semi-coke) gasification, and involves technical fields such as chemical equipment, chemical processes, and fluid mechanics. It includes a quench tank and a quench water circulation device; the quench tank includes a quench ring, a quench tank upper flange, and a quench water quench port; the quench water circulation device includes a quench water outlet pipe, a slag water filter, a quench water circulation pump, a circulating cooling water inlet, a quench water heat exchanger, a circulating cooling water outlet, a quench water inlet pipe, a quench water level regulator, a quench tank lower flange, and a quench tank slag lock valve." Based on the above, the applicant believes the following deficiencies exist: The quenching device of the gasification reactor includes a quenching tank and a quenching water circulation device. The device quenches and cools the material through a quenching ring and a quenching water circulation device. However, the overall efficiency of the device is poor and it cannot achieve uniform quenching operation. There will be uneven contact between the material and the quenching medium, which makes it difficult to cool down. Utility Model Content

[0004] The purpose of this invention is to provide a quenching device for a gasification reactor to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a quenching device for a gasification reactor, comprising a processing tank, a quenching box fixedly connected to the top of the processing tank, a quenching mechanism provided on the surface of the fixed frame and the quenching box, and a return air mechanism provided on the surface of the quenching box. The quenching mechanism includes an auxiliary guide plate fixedly connected to the left end of the quenching chamber. A water tank is fixedly connected to the center of the top of the quenching chamber. A fixing plate is fixedly connected to the top of the quenching chamber, and an atomizing nozzle is fixedly connected to the bottom of the fixing plate. Water pumps are installed at both ends of the water tank, and a connecting water pipe is installed between the water pumps and the fixing plate. A removable bottom cover is provided at the bottom of the treatment tank, and a motor frame is fixedly connected to the center of the bottom of the removable bottom cover. A motor is installed inside the motor frame, and a rotating shaft is provided on the top of the motor. A stirring plate is fixedly connected to the surface of the rotating shaft. A drain pump is installed at the left end of the quenching chamber, and a drain pipe is fixedly connected to the left end of the drain pump. After the materials and syngas are introduced into the quench chamber, the water pump immediately controls the operation to supply water to the atomizing nozzles. The atomizing nozzles quickly atomize and cool the high-temperature materials and syngas. The uniform atomizing nozzles with multiple sets of nozzles facing different directions can achieve uniform atomization under different spray pressures, effectively covering the high-temperature fluid. The materials that have passed the first stage of cooling will fall into the processing tank for further processing. The motor drives the rotating shaft and stirring plate to perform high-speed stirring of the materials, so that the cooling medium can be mixed with the materials more efficiently. The rotating shaft and stirring plate are made of high-temperature resistant materials to ensure that they will not be damaged. Later, the medium is discharged through the drain pump and drain pipe, and the removable bottom cover can be opened to recycle the residue.

[0006] Preferably, the fixing plate and the atomizing nozzle are disposed inside the quench chamber, and the atomizing nozzle is evenly distributed at the bottom end of the fixing plate.

[0007] Preferably, the rotating shaft is fixedly connected to the top output end of the motor, and the rotating shaft and the stirring plate are disposed inside the processing tank.

[0008] Preferably, the return air mechanism includes return air inlets, and return air inlets are provided at the four corners of the top of the quench box. An exhaust fan is installed inside the return air inlet, and an exhaust pipe is fixedly connected to the top of the return air inlet. An exhaust fan is installed at the top of the back of the exhaust pipe, and an air outlet pipe is fixedly connected to the top of the back of the exhaust pipe. When the material enters the processing tank for processing, the exhaust fan inside the return air inlet draws the syngas, which is also being cooled by the atomizing nozzle, from the top of the quench box, discharges it from the quench box through the exhaust pipe, and discharges it through the exhaust fan and air outlet pipe. This mechanism can effectively discharge the high-temperature syngas, further improving the overall efficiency of the device.

[0009] Preferably, there are four sets of return air inlets and exhaust fans, and two sets of exhaust pipes, exhaust fans, and air outlet pipes, with the exhaust fan located inside the air outlet pipe.

[0010] Preferably, a fixing frame is fixedly connected to the surface of the processing tank, and a feed pipe is fixedly connected to the top left end of the quenching box.

[0011] Compared with the prior art, the present invention provides a quenching device for a gasification reactor, which has the following beneficial effects: The gasification reactor is equipped with a quenching device. After the material and syngas are introduced into the quenching chamber, the water pump is immediately controlled to supply water to the atomizing nozzles. The atomizing nozzles rapidly atomize and cool the high-temperature material and syngas. The uniform atomizing nozzles with multiple sets of different orientations can achieve uniform atomization under different spray pressures, effectively covering the high-temperature fluid. The material after primary cooling falls into the processing tank for further processing. The motor drives the rotating shaft and stirring plate to perform high-speed stirring of the material, allowing the cooling medium to mix with the material more efficiently. The rotating shaft and stirring plate are made of high-temperature resistant materials to ensure that they will not be damaged. Later, the medium is discharged through the drain pump and drain pipe, and the removable bottom cover can be opened to recover the residue.

[0012] The quenching device of this gasification reactor is equipped with a return air mechanism. When the material enters the processing tank for processing, the exhaust fan inside the return air port draws the syngas, which is also being cooled by the atomizing nozzle, out from the top of the quenching box. The syngas is then discharged from the quenching box through the exhaust pipe and discharged from the device through the exhaust fan and the air outlet pipe. This mechanism can effectively discharge the high-temperature syngas, further improving the overall efficiency of the device. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model, the 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. Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the cooling mechanism of this utility model. Figure 3 This is a schematic diagram of the internal structure of the processing tank of this utility model; Figure 4 This is a schematic diagram of the return air mechanism of this utility model.

[0014] In the diagram: 1. Fixed frame; 2. Processing tank; 3. Quenching chamber; 4. Feed pipe; 5. Quenching mechanism; 51. Auxiliary guide plate; 52. Water tank; 53. Fixed plate; 54. Atomizing nozzle; 55. Water pump; 56. Connecting water pipe; 57. Removable bottom cover; 58. Motor frame; 59. Motor; 501. Rotating shaft; 502. Stirring plate; 503. Drain pump; 504. Drain pipe; 6. Return air mechanism; 61. Return air inlet; 62. Exhaust fan; 63. Exhaust pipe; 64. Exhaust fan; 65. Air outlet pipe. Detailed Implementation

[0015] 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.

[0016] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0017] This utility model provides the following technical solution: Example 1

[0018] Please see Figure 1-4 A quenching device for a gasification reactor includes a processing tank 2, a quenching box 3 fixedly connected to the top of the processing tank 2, a quenching mechanism 5 provided on the surface of the fixing frame 1 and the quenching box 3, and a return air mechanism 6 provided on the surface of the quenching box 3. The quenching mechanism 5 includes an auxiliary guide plate 51, which is fixedly connected to the left end of the quenching chamber 3. A water tank 52 is fixedly connected to the center of the top of the quenching chamber 3. A fixing plate 53 is fixedly connected to the top of the quenching chamber 3. An atomizing nozzle 54 is fixedly connected to the bottom of the fixing plate 53. Water pumps 55 are installed at both ends of the water tank 52. A connecting water pipe 56 is installed between the water pumps 55 and the fixing plate 53. A removable bottom cover 57 is provided at the bottom of the treatment tank 2. A motor frame 58 is fixedly connected to the center of the bottom of the removable bottom cover 57. A motor 59 is installed inside the motor frame 58. A rotating shaft 501 is provided on the top of the motor 59. A stirring plate 502 is fixedly connected to the surface of the rotating shaft 501. A drain pump 503 is installed at the left end of the quenching chamber 3. A drain pipe 504 is fixedly connected to the left end of the drain pump 503. After the materials and syngas are introduced into the quench box 3, the water pump 55 immediately controls the operation to supply water to the atomizing nozzles 54. The atomizing nozzles 54 quickly atomize and cool the high-temperature materials and syngas. The atomizing nozzles 54, which are uniform and have multiple sets of different orientations, can achieve uniform atomization under different spray pressures, effectively covering the high-temperature fluid. The materials that have undergone primary cooling will fall into the processing tank 2 for processing. The motor 59 drives the rotating shaft 501 and the stirring plate 502 to perform high-speed stirring of the materials, so that the cooling medium can be mixed with the materials more efficiently. The rotating shaft 501 and the stirring plate 502 are both made of high-temperature resistant materials to ensure that they will not be damaged. Later, the medium is discharged through the drain pump 503 and the drain pipe 504, and the detachable bottom cover 57 can be opened to recycle the residue. The fixed plate 53 and the atomizing nozzle 54 are disposed inside the quench chamber 3, and the atomizing nozzle 54 is evenly distributed at the bottom end of the fixed plate 53; The rotating shaft 501 is fixedly connected to the top output end of the motor 59, and the rotating shaft 501 and the stirring plate 502 are located inside the processing tank 2. Example 2

[0019] Please see Figure 1-4 Furthermore, based on Embodiment 1, the return air mechanism 6 includes a return air inlet 61. The four corners of the top of the quench box 3 are provided with return air inlets 61. An exhaust fan 62 is installed inside the return air inlet 61. An exhaust pipe 63 is fixedly connected to the top of the return air inlet 61. An exhaust fan 64 is installed at the top back of the exhaust pipe 63. An air outlet pipe 65 is fixedly connected to the top back of the exhaust pipe 63. When the material enters the processing tank 2 for processing, the exhaust fan 62 inside the return air inlet 61 works to draw the syngas that has been cooled by the atomizing nozzle 54 from the top of the quench box 3. The syngas is discharged from the quench box 3 through the exhaust pipe 63 and discharged from the device through the exhaust fan 64 and the air outlet pipe 65. The setting of this mechanism can effectively discharge the high temperature syngas, further improving the overall efficiency of the device. There are four sets of return air inlets 61 and exhaust fans 62, and two sets of exhaust pipes 63, exhaust fans 64 and air outlet pipes 65. The exhaust fan 64 is located inside the air outlet pipe 65. The surface of the processing tank 2 is fixedly connected to the fixing frame 1, and the top left end of the quench box 3 is fixedly connected to the feed pipe 4.

[0020] In actual operation, when this device is used, high-temperature materials and syngas are introduced into the device through the feed pipe 4 for processing. After the materials and syngas are introduced into the quench box 3, the water pump 55 immediately controls the operation to supply water to the atomizing nozzle 54. The atomizing nozzle 54 quickly atomizes and cools the high-temperature materials and syngas. Through the uniform and multiple sets of atomizing nozzles 54 with different orientations, uniform atomization can be achieved under different spray pressures, effectively covering the high-temperature fluid. The materials after primary cooling will fall into the processing tank 2 for processing. The motor 59 drives the rotating shaft 501 and the stirring plate 502 to perform high-speed stirring of the materials, so that the cooling medium can be mixed with the materials more efficiently. The rotating shaft 501 and the stirring plate 502 are both made of high-temperature resistant materials to ensure that they will not be damaged. Later, the medium is discharged through the drain pump 503 and the drain pipe 504, and the detachable bottom cover 57 can be opened to recycle the residue. When the material enters the processing tank 2 for processing, the exhaust fan 62 inside the return air vent 61 operates to draw the syngas, which is also being cooled by the atomizing nozzle 54, out from the top of the quench box 3, and out of the quench box 3 through the exhaust pipe 63. It is then discharged from the device through the exhaust fan 64 and the air outlet pipe 65. This mechanism can effectively discharge the high-temperature syngas, further improving the overall efficiency of the device.

[0021] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A quenching device for a gasification reactor, comprising a processing tank (2), characterized in that: The top of the processing tank (2) is fixedly connected to a quench box (3), and the surfaces of the two fixed frames (1) and the quench box (3) are provided with a quenching mechanism (5). The surface of the quench box (3) is provided with a return air mechanism (6). The quenching mechanism (5) includes an auxiliary guide plate (51), which is fixedly connected to the left end of the quenching chamber (3). A water tank (52) is fixedly connected to the center of the top of the quenching chamber (3). A fixing plate (53) is fixedly connected to the top of the quenching chamber (3). An atomizing nozzle (54) is fixedly connected to the bottom of the fixing plate (53). Water pumps (55) are installed at both ends of the water tank (52). A connecting water pipe is installed between the water pumps (55) and the fixing plate (53). 56), the bottom of the processing tank (2) is provided with a detachable bottom cover (57), a motor frame (58) is fixedly connected to the center of the bottom of the detachable bottom cover (57), a motor (59) is installed inside the motor frame (58), a rotating shaft (501) is provided on the top of the motor (59), a stirring plate (502) is fixedly connected to the surface of the rotating shaft (501), a drain pump (503) is installed on the left end of the quench box (3), and a drain pipe (504) is fixedly connected to the left end of the drain pump (503).

2. The quenching device for a gasification reactor according to claim 1, characterized in that: The fixed plate (53) and the atomizing nozzle (54) are disposed inside the quench chamber (3), and the atomizing nozzle (54) is evenly distributed at the bottom of the fixed plate (53).

3. The quenching device for a gasification reactor according to claim 1, characterized in that: The rotating shaft (501) is fixedly connected to the top output end of the motor (59), and the rotating shaft (501) and the stirring plate (502) are located inside the processing tank (2).

4. The quenching device for a gasification reactor according to claim 1, characterized in that: The return air mechanism (6) includes a return air inlet (61). The four corners of the top of the quench box (3) are provided with return air inlets (61). An exhaust fan (62) is installed inside the return air inlet (61). An exhaust pipe (63) is fixedly connected to the top of the return air inlet (61). An exhaust fan (64) is installed at the top back of the exhaust pipe (63). An air outlet pipe (65) is fixedly connected to the top back of the exhaust pipe (63).

5. The quenching device for a gasification reactor according to claim 4, characterized in that: The return air inlet (61) and exhaust fan (62) are provided in four sets, and the exhaust pipe (63), exhaust fan (64) and air outlet pipe (65) are provided in two sets, with the exhaust fan (64) located inside the air outlet pipe (65).

6. The quenching device for a gasification reactor according to claim 1, characterized in that: The surface of the processing tank (2) is fixedly connected to a fixing frame (1), and the top of the left end of the quenching box (3) is fixedly connected to a feed pipe (4).

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