Rice husk steaming device

By using steam heating and exhaust gas purification, the efficiency of rice husk steaming is improved, solving the problems of heat energy waste and environmental pollution in existing equipment, and realizing a highly efficient and environmentally friendly rice husk steaming process.

CN122081035APending Publication Date: 2026-05-26QIANJIANG FANGGU LIQUOR CO LTD
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Patent Information

Application Number
CN202610271377.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-03-06
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing rice husk steaming equipment suffers from low steam production efficiency, unsatisfactory steam quality, and emissions that lead to waste of thermal energy resources and environmental pollution.

Method used

The system employs a steam-heating method, where rice husks are steamed in pot A, preheated in pot B, and the steam is cooled into hot water by a plate heat exchanger. The residual heat is used to soak the grains. Exhaust gas is purified by passing through a filter screen and activated carbon adsorption plate, and harmful compounds are treated by atomized washing water, thus achieving environmentally friendly emissions of exhaust gas.

Benefits of technology

It improves steam cleaning efficiency, reduces heat energy waste, purifies exhaust gases, reduces environmental pollution, and achieves resource recycling.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of wine brewing equipment, and discloses a rice husk steaming device which comprises a steamer A, a steamer B, a steamer C and a steam conveying pipe communicating the steamer A, the steamer B and the steamer C. The air outlet end of the steam conveying pipe is connected with a plate heat exchanger, and the exhaust end of the plate heat exchanger is provided with a waste gas treatment mechanism. The waste gas treatment mechanism comprises a bottom plate, a waste gas treatment bin, a gas exhaust part, a filter screen plate, an activated carbon adsorption plate and a washing part, the waste gas treatment bin is mounted on the bottom plate, and the gas exhaust part is arranged at the upper end of the waste gas treatment bin and used for exhausting gas in the plate heat exchanger into the waste gas treatment bin; the filter screen plate and the activated carbon adsorption plate are mounted in the waste gas treatment bin. The waste heat recovery device has the following advantages and effects that waste heat can be recovered, and environmental pollution is reduced.
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Description

Technical Field

[0001] This invention relates to the field of brewing equipment technology, and in particular to a rice husk steaming device. Background Technology

[0002] Rice husks are an important auxiliary material in the brewing process of baijiu (Chinese liquor). When added to the fermentation materials during distillation or fermentation, they can make the fermentation materials fluffy and breathable. However, because rice husks themselves have a certain bran-like or other off-flavors, they must be steamed before use to reduce the impact of these off-flavors on the quality of the liquor.

[0003] Most existing rice husk steaming devices use a single steamer for processing, resulting in low efficiency and unsatisfactory quality of alcohol steam production. During processing, a large amount of steam is directly emitted into the air, causing a waste of thermal energy resources. Furthermore, the emitted gas contains impurities and organic compounds, which can cause environmental pollution. Therefore, it is necessary to propose a rice husk steaming device to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a rice husk steaming device that has the advantages of high distillation efficiency, good quality, waste heat recovery, and reduced environmental pollution.

[0005] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a rice husk steaming device, comprising a steamer A, a steamer B, a steamer C, and a steam conveying pipe connecting steamer A, steamer B, and steamer C. The outlet end of the steam conveying pipe is connected to a plate heat exchanger. The exhaust end of the plate heat exchanger is provided with a waste gas treatment mechanism. The waste gas treatment mechanism includes a base plate, a waste gas treatment chamber, an extraction component, a filter plate, an activated carbon adsorption plate, and a washing component. The waste gas treatment chamber is installed on the base plate, and the extraction component is located at the waste gas treatment chamber. The upper end of the treatment chamber is used to draw the gas in the plate heat exchanger into the exhaust gas treatment chamber. The filter screen and activated carbon adsorption plate are installed in the exhaust gas treatment chamber. The washing component includes a rotating drum that is rotatably mounted on the activated carbon adsorption plate. Three water supply pipes and atomizing nozzles connected to the water supply pipes are arranged around the outer circumference of the rotating drum. A washing water tank is also provided at the upper end of the bottom plate. A water pump is installed at the upper end of the washing water tank. Water inlet pipes connecting the washing water tank and the rotating drum are installed at both ends of the water pump. An exhaust pipe is also provided on the exhaust gas treatment chamber.

[0006] By adopting the above technical solution, a steam series heating method is used. Steam is steamed in steamer A to steam the rice husks, and the outlet is introduced into steamer B, realizing steaming in steamer A and preheating in steamer B, which shortens the steaming time. Steam enters plate heat exchanger (shell and tube type) from steamer C, where it is cooled into water, avoiding a large amount of steam being released into the air. At the same time, the cooling water is heated to 80-100℃ hot water for soaking grains, achieving the effect of waste heat utilization. After waste heat utilization, the gas is sent to the exhaust gas treatment chamber through the exhaust component. The exhaust gas first passes through the filter screen to remove impurities, and then passes through the activated carbon adsorption plate to remove odors. Then, it reaches the bottom of the activated carbon adsorption plate, which drives the water pump and the water inlet pipe to draw washing water from the washing water chamber. The water is then sent to three atomizing nozzles through the rotating drum and water supply pipe to atomize the purified water, so that it can better contact with the exhaust gas, thereby purifying the harmful compounds in the gas. Finally, it is discharged through the exhaust pipe, making the emitted gas safer and more environmentally friendly.

[0007] A further provision of the present invention is that the air extraction component includes an air extraction pump installed at the upper end of the waste gas treatment chamber, and the two ends of the air extraction pump are provided with air delivery pipes connecting the plate heat exchanger and the waste gas treatment chamber.

[0008] By adopting the above technical solution, the gas inside the plate heat exchanger is extracted through the gas delivery pipe by driving the air pump and sent to the waste gas treatment chamber for waste gas purification treatment.

[0009] A further feature of the present invention is that the outer walls of the exhaust gas treatment chamber and the washing water chamber are respectively provided with openings, and a filter plate is provided in the openings located on the outer wall of the exhaust gas treatment chamber.

[0010] By adopting the above technical solution, after the atomized washing water comes into contact with the exhaust gas, the excess water vapor falls to the bottom wall of the exhaust gas treatment chamber due to gravity, and then flows into the washing water chamber through the opening and filter plate, so that it can be recycled and more resources are saved.

[0011] A further provision of the present invention is that: a cleaning mechanism is provided at the upper end of the filter screen plate, the cleaning mechanism includes a motor installed at the upper end of the exhaust gas treatment chamber, a rotating rod is installed at the output end of the motor, a scraper is provided on the rotating rod to fit the surface of the filter screen plate, and a linkage is provided between the rotating rod and the rotating cylinder.

[0012] By adopting the above technical solution, the rotating rod driven by the motor rotates, causing the scraper to rotate and clean the debris generated by the filter screen, making the device more convenient to use.

[0013] A further configuration of the present invention is as follows: the linkage includes a first linkage rod and a second linkage rod rotatably mounted on the exhaust gas treatment chamber; a synchronizing element is provided between the first linkage rod and the rotating rod; a first bevel tooth structure is provided between the first linkage rod and the second linkage rod; and a second bevel tooth structure is provided between the second linkage rod and the rotating cylinder.

[0014] By adopting the above technical solution, the rotation of the rotating rod drives the first linkage rod to rotate through the synchronizing component, and the rotation of the rotating cylinder is caused by the cooperation of the second linkage rod, the first bevel tooth structure and the second bevel tooth structure, which in turn causes the atomizing nozzle to rotate, so that the atomized washing liquid can better contact the exhaust gas and clean the harmful compounds in the exhaust gas.

[0015] A further configuration of the present invention is as follows: the synchronizing element includes a synchronizing wheel installed on the upper end of the first linkage rod and the rotating rod, a synchronizing belt is installed between the two synchronizing wheels, and the first bevel tooth structure and the second bevel tooth structure each include a main bevel tooth and a driven bevel tooth meshing with it.

[0016] By adopting the above technical solution, when the rotating rod rotates, the two synchronous pulleys are driven to rotate by the synchronous belt, which in turn causes the first linkage rod to rotate. At the same time, the main bevel gear and the driven bevel gear work together to make the rotating drum rotate, thereby performing rotary spraying.

[0017] A further feature of the present invention is that the outer wall of the waste gas treatment chamber is provided with two discharge ports, and the discharge ports are provided with baffle structures.

[0018] By adopting the above technical solution, when it is necessary to clean impurities, the baffle structure can be opened to discharge the cleaned debris from the discharge port, which is convenient for cleaning.

[0019] A further feature of the present invention is that the baffle structure includes two electric actuators installed on the waste gas treatment chamber, the output end of the electric actuators is equipped with a guide, and the guide is provided with a cover plate to block the discharge port.

[0020] By adopting the above technical solution, two electric actuators are driven, and the guide component causes the cover plate to slide down, thereby opening the discharge port and discharging dust and impurities.

[0021] A further feature of the present invention is that the guide includes a connecting plate installed at the output end of the electric actuator, and connecting posts with connecting cover plates are installed at both ends of the inner side of the connecting plate.

[0022] By adopting the above technical solution, when the electric actuator pushes the connecting plate to move up and down, the connecting column drives the cover plate to rise and fall. The cover plate is slidably set on the side wall of the exhaust gas treatment chamber, so that the discharge port can be flexibly opened and closed.

[0023] A further feature of the present invention is that: guide rods are installed on the outer wall of the exhaust gas treatment chamber at both ends of the connecting plate; movable blocks that are slidably adapted to the guide rods are provided on the connecting plate; and springs are sleeved on the guide rods.

[0024] By adopting the above technical solution, the movable blocks on both sides of the connecting plate slide on the guide rod as the connecting plate is raised and lowered, pressing the spring and making the lifting and lowering movement of the cover plate more stable.

[0025] The beneficial effects of this invention are:

[0026] 1. This invention employs a steam-series heating method. Steam is passed through steamer A to steam the rice husks, and the outlet is fed into steamer B, achieving steaming in steamer A and preheating in steamer B, thus shortening the steaming time. The steam exits from steamer C and enters a plate heat exchanger (tube-and-shell type), where it is cooled into water, preventing large amounts of steam from being released into the air. Simultaneously, the cooling water is heated to 80-100°C for soaking grains, achieving the effect of waste heat utilization. After waste heat utilization, the gas is sent to the exhaust gas treatment chamber through an exhaust component. The exhaust gas first passes through a filter screen to remove impurities, then through an activated carbon adsorption plate to remove odors. Next, it reaches the area below the activated carbon adsorption plate, where a water pump is driven to draw washing water from the washing water chamber through the inlet pipe. This water is then sent to three atomizing nozzles through a rotating drum and a water supply pipe to atomize the purified water, allowing for better contact with the exhaust gas and thus purifying the harmful compounds in the gas. Finally, the gas is discharged through an exhaust pipe, making the emitted gas safer and more environmentally friendly.

[0027] 2. In this invention, two electric push rods are driven, and the cover plate is moved downward by the guide to open the discharge port. The rotating rod is driven by the motor to rotate, which makes the scraper rotate to clean the impurities generated by the filter screen and discharge them from the discharge port, making the device more convenient to use.

[0028] 3. In this invention, the rotation of the rotating rod drives the first linkage rod to rotate through the synchronization component, and the rotation of the rotating cylinder is caused by the cooperation of the second linkage rod, the first bevel tooth structure and the second bevel tooth structure, which in turn causes the atomizing nozzle to rotate, so that the atomized washing liquid can better contact the exhaust gas and clean the harmful compounds in the exhaust gas.

[0029] 4. In this invention, after the atomized washing water comes into contact with the exhaust gas, the excess water vapor falls to the bottom wall of the exhaust gas treatment chamber due to gravity, and then flows into the washing water chamber through the opening and filter plate, thus enabling recycling and saving more resources. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a structural diagram showing the connection between the steamer and the plate heat exchanger of the present invention.

[0032] Figure 2 This is the present invention. Figure 1 Diagram showing the connection structure between the steam conveying pipe and the waste gas treatment mechanism.

[0033] Figure 3 This is the present invention. Figure 2 Internal structure diagram of the waste gas treatment chamber.

[0034] Figure 4 This is the present invention. Figure 3 Overall structural diagram of the waste gas treatment unit.

[0035] Figure 5 This is the present invention. Figure 3 Overall structural diagram of the middle baffle structure.

[0036] In the diagram: 1. Steamer A; 2. Steamer B; 3. Steam delivery pipe; 4. Plate heat exchanger; 5. Waste gas treatment mechanism; 51. Base plate; 52. Waste gas treatment chamber; 53. Filter screen; 54. Activated carbon adsorption plate; 55. Rotary drum; 56. Water supply pipe; 57. Atomizing nozzle; 58. Washing water tank; 59. Water pump; 510. Water inlet pipe; 511. Exhaust pipe; 512. Air pump; 513. Air delivery pipe. 514. Filter plate; 515. Motor; 516. Rotating rod; 517. Scraper; 518. Second linkage rod; 519. Synchronous pulley; 520. Synchronous belt; 521. Main bevel gear; 522. Driven bevel gear; 523. Waste discharge port; 524. Electric push rod; 525. Cover plate; 526. Connecting plate; 527. Connecting column; 528. Guide rod; 529. Movable block; 530. Spring; 6. Steamer C. Detailed Implementation

[0037] The technical solution of the present invention will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0038] like Figure 1 , Figure 2 , Figure 3As shown, a steamer includes steamer A1, steamer B2, steamer C6, and a steam conveying pipe 3 connecting steamer A1, steamer B2, and steamer C6. The outlet end of the steam conveying pipe 3 is connected to a plate heat exchanger 4. The exhaust end of the plate heat exchanger 4 is equipped with a waste gas treatment mechanism 5. The waste gas treatment mechanism 5 includes a base plate 51, a waste gas treatment chamber 52, an extraction component, a filter plate 53, an activated carbon adsorption plate 54, and a washing component. The waste gas treatment chamber 52 is installed on the base plate 51. The extraction component is located at the upper end of the waste gas treatment chamber 52 to extract the gas inside the plate heat exchanger 4 to the waste gas treatment chamber. Inside the chamber 52, the filter screen 53 and the activated carbon adsorption plate 54 are installed. The washing component includes a rotating drum 55 rotatably mounted on the activated carbon adsorption plate 54. The outer circumference of the rotating drum 55 is provided with three water supply pipes 56 and atomizing nozzles 57 connected to the water supply pipes 56. A washing water chamber 58 is also provided at the upper end of the bottom plate 51. A water pump 59 is installed at the upper end of the washing water chamber 58. Water inlet pipes 510 are installed at both ends of the water pump 59, respectively connecting the washing water chamber 58 and the rotating drum 55. An exhaust pipe 511 is also provided on the waste gas treatment chamber 52.

[0039] The system employs a steam-heating method, where steam passes through steamer A1 to steam the rice husks and then exits into steamer B2. This process allows steamer A to steam while preheating B, shortening the steaming time. Steam exits from B and enters a four-tube plate heat exchanger, where it is cooled into water, preventing large amounts of steam from being released into the air. Simultaneously, the cooled water is heated to 80-100°C for soaking the grain, thus utilizing waste heat. After waste heat utilization, the gas is sent to the exhaust gas treatment chamber 52 via an extraction component. The exhaust gas first passes through a filter screen 53 to remove impurities, then through an activated carbon adsorption plate 54 to remove odors. It then reaches below the activated carbon adsorption plate 54, where a water pump 59 drives a water inlet pipe 510 to draw washing water from the washing water chamber 58. This water is then sent through a rotating drum 55 and a water supply pipe 56 to three atomizing nozzles 57, where the purified water is atomized to better contact the exhaust gas, thereby purifying harmful compounds in the gas. Finally, the gas is discharged through an exhaust pipe 511, making the emitted gas safer and more environmentally friendly.

[0040] like Figure 4 As shown, the air extraction component includes an air extraction pump 512 installed on the upper end of the exhaust gas treatment chamber 52. The two ends of the air extraction pump 512 are provided with air supply pipes 513 connecting the plate heat exchanger 4 and the exhaust gas treatment chamber 52. The outer walls of the exhaust gas treatment chamber 52 and the washing water chamber 58 are respectively provided with openings. A filter plate 514 is provided in the opening located on the outer wall of the exhaust gas treatment chamber 52.

[0041] By driving the air pump 512, the gas in the plate heat exchanger 4 is drawn out through the air supply pipe 513 and sent to the exhaust gas treatment chamber 52 for exhaust gas purification. After the atomized washing water comes into contact with the exhaust gas, the excess water vapor falls to the bottom wall of the exhaust gas treatment chamber 52 due to gravity, and flows into the washing water chamber 58 through the opening and filter plate 514, so that it can be recycled and more resources are saved.

[0042] like Figure 3 , Figure 4 As shown, a cleaning mechanism is provided at the upper end of the filter screen 53. The cleaning mechanism includes a motor 515 installed at the upper end of the exhaust gas treatment chamber 52. A rotating rod 516 is installed at the output end of the motor 515. A scraper 517 that fits against the surface of the filter screen 53 is provided on the rotating rod 516. A linkage is provided between the rotating rod 516 and the rotating cylinder 55. The linkage includes a first linkage rod 517 and a second linkage rod 518 that are rotatably mounted on the exhaust gas treatment chamber 52. The first linkage rod 517 and the second linkage rod 518 are connected... A synchronizing element is provided between the rotating rods 516. A first bevel gear structure is provided between the first linkage rod 517 and the second linkage rod 518. A second bevel gear structure is provided between the second linkage rod 518 and the rotating cylinder 55. The synchronizing element includes a synchronizing pulley 519 installed on the upper end of the first linkage rod 517 and the rotating rod 516. A synchronizing belt 520 is installed between the two synchronizing pulleys 519. The first bevel gear structure and the second bevel gear structure each include a main bevel gear 521 and a driven bevel gear 522 that meshes with it.

[0043] The rotating rod 516 is driven by the motor 515 to rotate, causing the scraper 517 to rotate and clean the impurities filtered from the surface of the filter screen 53, making the device more convenient to use. Under the rotation of the rotating rod 516, the first linkage rod 517 is driven to rotate through the synchronization component, and the rotating drum 55 is rotated through the cooperation of the second linkage rod 518 and the first and second bevel tooth structures, causing the atomizing nozzle 57 to rotate, so that the atomized washing liquid can better contact the exhaust gas and clean the harmful compounds in the exhaust gas. When the rotating rod 516 rotates, the two synchronous pulleys 519 are driven to rotate through the synchronous belt 520, causing the first linkage rod 517 to rotate. At the same time, the rotating drum 55 is rotated through the cooperation of the main bevel tooth 521 and the driven bevel tooth 522, thus performing rotary spraying.

[0044] like Figure 3 , Figure 4 , Figure 5As shown, the outer wall of the exhaust gas treatment chamber 52 is provided with two discharge ports 523. Each discharge port 523 is provided with a baffle structure. The baffle structure includes two electric actuators 524 installed on the exhaust gas treatment chamber 52. The output end of each electric actuator 524 is provided with a guide. The guide is provided with a cover plate 525 that blocks the discharge port 523. The guide includes a connecting plate 526 installed on the output end of the electric actuator 524. Both ends of the inner side of the connecting plate 526 are provided with connecting posts 527 that connect to the cover plate 525. The outer wall of the exhaust gas treatment chamber 52 is provided with guide rods 528 at both ends of the connecting plate 526. The connecting plate 526 is provided with movable blocks 529 that slide and adapt to the guide rods 528. A spring 530 is sleeved on the guide rods 528.

[0045] When it is necessary to clean impurities, the baffle structure is opened to discharge the cleaned debris from the discharge port 523 for easy cleaning. The two electric push rods 524 are driven, and the cover plate 525 is moved up and down by the guide component, so that the discharge port 523 is opened to discharge dust and impurities. When the electric push rods 524 push the connecting plate 526 up and down, the cover plate 525 is raised and lowered through the connecting column 527. The cover plate 525 is slidably set on the side wall of the exhaust gas treatment chamber 52, so that the discharge port 523 can be opened and closed flexibly. Under the raising and lowering of the connecting plate 526, the movable blocks 529 on both sides slide on the guide rod 528, pressing the spring 530, so that the raising and lowering movement of the cover plate 525 is more stable.

Claims

1. A rice husk steaming device, comprising a steamer A (1), a steamer B (2), a steamer C (6), and a steam conveying pipe (3) connecting the steamer A (1), the steamer B (2), and the steamer C (6), characterized in that: The steam delivery pipe (3) is connected to a plate heat exchanger (4) at its outlet. The plate heat exchanger (4) has a waste gas treatment mechanism (5) at its exhaust end. The waste gas treatment mechanism (5) includes a base plate (51), a waste gas treatment chamber (52), an extraction component, a filter screen (53), an activated carbon adsorption plate (54), and a washing component. The waste gas treatment chamber (52) is mounted on the base plate (51). The extraction component is located at the top of the waste gas treatment chamber (52) to draw gas from the plate heat exchanger (4) into the waste gas treatment chamber (52). The filter screen (53) and the activated carbon adsorption plate (54) are installed... Inside the waste gas treatment chamber (52), the washing component includes a rotating drum (55) rotatably mounted on the activated carbon adsorption plate (54). The outer circumference of the rotating drum (55) is provided with three water supply pipes (56) and an atomizing nozzle (57) connected to the water supply pipes (56). The upper end of the bottom plate (51) is also provided with a washing water tank (58). The upper end of the washing water tank (58) is equipped with a water pump (59). The two ends of the water pump (59) are respectively connected to the washing water tank (58) and the rotating drum (55). The waste gas treatment chamber (52) is also provided with an exhaust pipe (511).

2. The rice husk steaming device according to claim 1, characterized in that: The air extraction component includes an air extraction pump (512) installed at the upper end of the exhaust gas treatment chamber (52), and the two ends of the air extraction pump (512) are provided with air supply pipes (513) connecting the plate heat exchanger (4) and the exhaust gas treatment chamber (52).

3. The rice husk steaming device according to claim 1, characterized in that: The outer walls of the exhaust gas treatment chamber (52) and the washing water chamber (58) are provided with openings respectively, and a filter plate (514) is provided in the opening on the outer wall of the exhaust gas treatment chamber (52).

4. The rice husk steaming device according to claim 1, characterized in that: The upper end of the filter screen (53) is provided with a cleaning mechanism, which includes a motor (515) installed on the upper end of the exhaust gas treatment chamber (52). The output end of the motor (515) is provided with a rotating rod (516), and a scraper (517) that fits against the surface of the filter screen (53) is provided on the rotating rod (516). A linkage is provided between the rotating rod (516) and the rotating cylinder (55).

5. A rice husk steaming device according to claim 4, characterized in that: The linkage includes a first linkage rod (517) and a second linkage rod (518) rotatably mounted on the exhaust gas treatment chamber (52). A synchronization element is provided between the first linkage rod (517) and the rotating rod (516). A first bevel tooth structure is provided between the first linkage rod (517) and the second linkage rod (518). A second bevel tooth structure is provided between the second linkage rod (518) and the rotating cylinder (55).

6. The rice husk steaming device according to claim 5, characterized in that: The synchronizing element includes a synchronizing pulley (519) installed on the upper end of the first linkage rod (517) and the rotating rod (516), and a synchronizing belt (520) is installed between the two synchronizing pulleys (519). The first bevel tooth structure and the second bevel tooth structure each include a main bevel tooth (521) and a secondary bevel tooth (522) meshing with it.

7. A rice husk steaming device according to claim 6, characterized in that: The outer wall of the waste gas treatment chamber (52) is provided with two discharge ports (523), and the discharge ports (523) are provided with baffle structures.

8. The rice husk steaming device according to claim 7, characterized in that: The baffle structure includes two electric actuators (524) installed on the exhaust gas treatment chamber (52). The output end of the electric actuator (524) is equipped with a guide, and the guide is provided with a cover plate (525) that blocks the discharge port (523).

9. A rice husk steaming device according to claim 8, characterized in that: The guide includes a connecting plate (526) installed at the output end of the electric actuator (524), and connecting posts (527) of connecting cover plates (525) are installed at both ends of the inner side of the connecting plate (526).

10. A rice husk steaming device according to claim 9, characterized in that: The outer wall of the exhaust gas treatment chamber (52) is equipped with guide rods (528) at both ends of the connecting plate (526). The connecting plate (526) is provided with movable blocks (529) that are slidably adapted to the guide rods (528). A spring (530) is sleeved on the guide rods (528).