Rice bran steam explosion buffer discharge structure

CN122540667APending Publication Date: 2026-08-11HARBIN UNIV OF COMMERCE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-07-07
Publication Date
2026-08-11

AI Technical Summary

Technical Problem

现有米糠汽爆罐出料端存在明显缺陷:出料瞬时释放高压蒸汽与高速米糠混合物,物料流速快、冲击力极强,直接冲击下方输送设备,易造成设备壳体变形、磨损

Benefits of technology

[0014] Two round rods are fixed to the lower side of the inclined plate. The two round rods are vertically slidably connected to the crossbeam. A connecting rod is fixed between the lower ends of the two round rods. The connecting rod is located on the lower side of the crossbeam. A compression spring is sleeved on each of the two round rods. The compression spring is located between the inclined plate and the crossbeam. The compression spring gives the inclined plate an upward elastic force, causing the inclined plate to press against the lower end of the wave plate. At the same time, the inclined plate can also adapt to the height change of the outlet end of the wave plate by vertically moving the round rods.

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Abstract

This invention relates to the field of biomass processing equipment technology, and more specifically to a rice bran steam explosion buffer discharge structure. The rice bran steam explosion buffer discharge structure includes a circular pipe with a flange at its upper part, connecting to the outlet of a rice bran steam explosion tank via the flange. A conical expansion tube is integrally formed at the lower part of the circular pipe, with multiple spiral guide ribs arranged annularly on its inner side. A corrugated plate for buffering impact is located below the conical expansion tube, with the corrugated plate inclined. The conical expansion tube is positioned above the highest point of the corrugated plate, and a side panel is provided on the outer side of the corrugated plate. The lowest point of the corrugated plate is the outlet. A funnel is located above the side panel, with the lower end of the conical expansion tube extending into the funnel. Multiple rubber blocks for buffering gas impact are evenly distributed along the upper edge of the funnel. This structure enables multi-stage buffering and deceleration of the rice bran steam explosion discharge.
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Description

Technical Field

[0001] This invention relates to the field of biomass processing equipment technology, and more specifically to a rice bran steam explosion buffer discharge structure. Background Technology

[0002] Rice bran is a byproduct of rice processing, rich in dietary fiber, oils, and active nutrients. Industrially, it is often modified using a high-temperature, high-pressure steam explosion process to enhance its value in extraction, fermentation, and feed processing. The working principle of the steam explosion process is as follows: rice bran is placed in a sealed steam explosion tank, and high-temperature, high-pressure steam is introduced to maintain the temperature and pressure for a certain period. Then, the tank outlet is opened instantaneously to release pressure, relying on the impact of the internal high-pressure steam to tear the rice bran fiber structure, thus completing the pretreatment. Existing rice bran steam explosion tanks have a significant defect at the discharge end: the instantaneous release of a high-pressure steam and high-speed rice bran mixture results in a fast material flow rate and extremely strong impact force, directly impacting the conveying equipment below, easily causing deformation and wear of the equipment casing. Summary of the Invention

[0003] To overcome the shortcomings of the prior art, the present invention provides a rice bran steam explosion buffer discharge structure, which has the beneficial effect of realizing multi-stage buffer deceleration of rice bran steam explosion discharge.

[0004] The technical solution adopted by this invention to solve its technical problem is:

[0005] A rice bran steam explosion buffer discharge structure includes a circular pipe with a flange at the upper part, the circular pipe being connected to the outlet of the rice bran steam explosion tank via the flange, and a tapered expansion pipe integrally formed at the lower part of the circular pipe, with multiple spiral guide ribs arranged in a ring on the inner side of the tapered expansion pipe.

[0006] Below the tapered expansion tube is a corrugated plate for buffering impact. The corrugated plate is inclined, and the tapered expansion tube is positioned above the highest point of the corrugated plate. A side panel is provided on the outside of the corrugated plate, and the lowest point of the corrugated plate is the outlet.

[0007] A funnel is provided on the upper part of the side panel, and the lower end of the tapered expansion tube extends into the funnel. Multiple rubber blocks are evenly distributed on the upper edge of the funnel to buffer the impact of gas.

[0008] The front and rear sides of the upper part of the side panel are fixed with two fixed shafts, which are rotatably connected to the upper part of two support columns. The lower ends of the two support columns are fixed to the bottom strip, so that the wave plate can rotate to increase the inclination and pour out the residue on the wave plate.

[0009] A sliding groove is provided on one side of the side panel, and a hydraulic cylinder is fixed on one of the support columns. A sliding pin is fixed to the movable end of the hydraulic cylinder, and the sliding pin is slidably connected to the sliding groove. Limiting blocks are fixed on both the front and rear sides of the side panel. The two limiting blocks can abut against the left side of the two support columns respectively. At this time, the wave plate is at the normal working inclination.

[0010] A base is provided below the bottom strip, and two round rods are fixed on the upper side of the base. Both round rods are vertically slidably connected to the bottom strip. A stop pin is fixed on the upper part of each round rod. The stop pin blocks the upper side of the bottom strip to prevent the round rod from detaching from the bottom strip. A compression spring is sleeved on each of the two round rods. The compression spring is located between the bottom strip and the base and provides an upward elastic force to the bottom strip.

[0011] Four threaded posts are fixed on the upper side of the side panel, and a cover plate is inserted into the four threaded posts. Each threaded post is connected to a nut by thread. The cover plate covers the top of the corrugated plate and has multiple steam outlet holes evenly distributed on it.

[0012] The base is fixed to one end of the crossbeam, and a T-shaped frame is fixed to both ends of the lower side of the crossbeam.

[0013] A ramp is installed below the outlet of the wave plate. The ramp is inclined, and baffles are installed on both the front and rear sides of the ramp. A gantry frame is fixed between the right ends of the two baffles. Two round rods are slidably connected to the gantry frame in the horizontal direction. An arc plate is installed on the discharge side of the ramp. The outer side of the arc plate is fixed to the ends of the two round rods. Compression springs are sleeved on the two round rods. The compression springs provide elastic force to the arc plate as it approaches the ramp, so that the arc plate can buffer the discharge. The other ends of the two round rods are fixed to a connecting rod. The arc plate and the connecting rod are located on both sides of the gantry frame. A hydraulic cylinder is fixed on the gantry frame. The movable end of the hydraulic cylinder rests on the connecting rod. When the hydraulic cylinder extends, it drives the connecting rod to move outward, thereby overcoming the elastic force of the two compression springs and moving the two round rods and the arc plate outward, so that the arc plate leaves the ramp and opens the outlet of the ramp.

[0014] Two round rods are fixed to the lower side of the inclined plate. The two round rods are vertically slidably connected to the crossbeam. A connecting rod is fixed between the lower ends of the two round rods. The connecting rod is located on the lower side of the crossbeam. A compression spring is sleeved on each of the two round rods. The compression spring is located between the inclined plate and the crossbeam. The compression spring gives the inclined plate an upward elastic force, causing the inclined plate to press against the lower end of the wave plate. At the same time, the inclined plate can also adapt to the height change of the outlet end of the wave plate by vertically moving the round rods. Attached Figure Description

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.

[0016] Figure 1 A schematic diagram of a rice bran steam explosion buffer discharge structure. Figure 1 ;

[0017] Figure 2 A schematic diagram of a rice bran steam explosion buffer discharge structure. Figure 2 ;

[0018] Figure 3 A schematic diagram of a rice bran steam explosion buffer discharge structure. Figure 3 ;

[0019] Figure 4 This is a schematic diagram of a circular tube.

[0020] Figure 5 Schematic diagram of the corrugated plate and bottom strip Figure 1 ;

[0021] Figure 6 Schematic diagram of the corrugated plate and bottom strip Figure 2 ;

[0022] Figure 7 Schematic diagram of the cover plate Figure 1 ;

[0023] Figure 8 Schematic diagram of the cover plate Figure 2 ;

[0024] Figure 9 Schematic diagram of the inclined plate Figure 1 ;

[0025] Figure 10 Schematic diagram of the inclined plate Figure 2 .

[0026] In the figure: 101 circular tube; 102 tapered expansion tube; 103 spiral guide rib;

[0027] 201 Corrugated plate; 202 Side panel; 203 Slide groove; 204 Fixed shaft; 205 Funnel; 206 Rubber block; 207 Threaded column;

[0028] Bottom strip 301; Stop pin 302; Limit block 303; Hydraulic cylinder 304; Support column 305; Sliding pin 306; Base 307; Round rod 308;

[0029] Cover plate 401; Steam outlet 402;

[0030] Inclined plate 501; Arc plate 502; Portal frame 503; Round rod 2 504; Connecting rod 1 505; Hydraulic cylinder 2 506; T-shaped frame 507; Crossbeam 508; Round rod 3 509; Connecting rod 2 510. Detailed Implementation

[0031] A rice bran steam explosion buffer discharge structure includes a circular tube 101. The upper part of the circular tube 101 is provided with a flange, and the circular tube 101 is connected to the outlet position of the rice bran steam explosion tank through the flange. The lower part of the circular tube 101 is integrally formed with a tapered expansion tube 102, and the inner side of the tapered expansion tube 102 is provided with a plurality of spiral guide ribs 103 in an annular shape.

[0032] like Figure 4 As shown;

[0033] After the rice bran undergoes high-temperature and high-pressure steam explosion, the high-pressure steam and high-speed rice bran material inside the explosion tank are discharged from the tank outlet. The material and high-pressure airflow first enter the circular pipe 101. The flange at the upper end of the circular pipe 101 achieves a sealed connection with the explosion tank to prevent the high-pressure steam and rice bran from leaking out. The material flows downward into the integrally formed tapered expansion pipe 102 at the lower end. The diameter of the tapered expansion pipe 102 gradually increases from top to bottom. The increased space can initially reduce the flow velocity of the high-pressure airflow and mitigate the impact intensity of the material.

[0034] The spiral guide ribs 103 arranged in a ring on the inner wall of the tapered expansion pipe 102 will have a spiral guiding effect on the flowing mixed steam and material: breaking up high-speed material clumps and preventing rice bran clumps from accumulating and impacting the components below; at the same time, changing the direction of the straight impact of steam, decomposing the straight impact force into a spiral tangential force, completing the first-level buffer deceleration, uniformly dispersing the steam and material, and providing a foundation for the uniform material drop of the subsequent second-level buffer structure.

[0035] Below the tapered expansion tube 102, a wave plate 201 for buffering impact is provided. The wave plate 201 is inclined. The tapered expansion tube 102 is located above the highest position of the wave plate 201. A side panel 202 is provided on the outside of the wave plate 201. The lowest position of the wave plate 201 is the outlet.

[0036] like Figure 5 , Figure 6 As shown;

[0037] After being initially slowed and dispersed by the tapered expansion pipe 102 and the spiral guide ribs 103, the rice bran and high-pressure steam fall vertically to the highest point of the inclined corrugated plate 201. The corrugated plate 201 has a concave-convex wave shape, which can absorb the vertical impact force of the falling material significantly compared to a flat plate: when the material hits the concave-convex surface of the wave, it is unloaded multiple times, realizing a two-stage buffer and reducing the kinetic energy of the falling material.

[0038] The corrugated plate 201 is arranged at an overall angle. The buffered rice bran slides from high to low along the plate surface by its own gravity and is finally conveyed outward from the lowest outlet of the corrugated plate 201. The side plates 202 fixed around the corrugated plate 201 form a closed guide channel to prevent rice bran and splashing steam from overflowing from both sides of the corrugated plate and to constrain the material to flow only along the plate surface to the bottom outlet.

[0039] The upper part of the side panel 202 is provided with a funnel 205, the lower end of the tapered expansion tube 102 extends into the funnel 205, and a plurality of rubber blocks 206 for buffering gas impact are evenly distributed on the upper edge of the funnel 205.

[0040] like Figure 5 , Figure 6 As shown;

[0041] The lower end of the tapered expansion tube 102 extends into the funnel 205 above the side panel 202. The funnel 205 has a structure that is wider at the top and narrower at the bottom, and it receives all the steam material falling from the tapered expansion tube 102, thus playing a role in gathering and collecting the material.

[0042] When the high-pressure steam discharged from the steam explosion overflows at high speed, it will directly impact the upper edge of the funnel 205. The rubber blocks 206 evenly arranged on the edge of the funnel are elastic buffers. When the high-pressure airflow hits the rubber blocks 206, the rubber undergoes elastic deformation to absorb the impact kinetic energy of the airflow and weaken the continuous impact of the steam on the metal shell of the funnel.

[0043] The front and rear sides of the upper part of the side panel 202 are fixed with two fixed shafts 204. The two fixed shafts 204 are rotatably connected to the upper part of the two support columns 305 respectively. The lower ends of the two support columns 305 are fixed to the bottom strip 301, so that the wave plate 201 can rotate to increase the inclination and pour out the residue on the wave plate 201.

[0044] like Figure 5 , Figure 6 As shown;

[0045] The fixed shafts 204 on the front and rear sides of the side panel 202 form a rotating hinge joint with the upper part of the support column 305. The bottom of the support column 305 is rigidly fixed to the bottom strip 301, providing a rotating support fulcrum for the entire set of wave plate 201, side panel 202, and funnel 205 assembly.

[0046] After prolonged operation, rice bran tends to adhere to and accumulate on the uneven surface of the corrugated plate 201, forming residues that block the discharge channel. During cleaning, the entire corrugated plate assembly rotates downwards around the fixed shafts 204 on both sides, increasing the tilt angle of the corrugated plate 201. As the slope of the plate increases, the residual rice bran quickly slides down the plate surface under gravity, achieving automatic slag removal and cleaning. After cleaning, the assembly rotates in the opposite direction to reset to the normal operating tilt angle, resuming continuous discharge operation.

[0047] A sliding groove 203 is provided on one side of the side panel 202. A hydraulic cylinder 304 is fixed on one of the support columns 305. A sliding pin 306 is fixed to the movable end of the hydraulic cylinder 304. The sliding pin 306 is slidably connected to the sliding groove 203. Limiting blocks 303 are fixed on both the front and rear sides of the side panel 202. The two limiting blocks 303 can abut against the left side of the two support columns 305 respectively. At this time, the wave plate 201 is at the normal working inclination.

[0048] like Figure 5 , Figure 6 As shown;

[0049] A hydraulic cylinder 304 is installed on the outside of the support column 305. The telescopic end of the hydraulic cylinder 304 is connected to a sliding pin 306. The sliding pin 306 is embedded in the sliding groove 203 opened on the side of the side panel 202, forming a wave plate flipping drive mechanism.

[0050] Normal discharge conditions: Hydraulic cylinder 304 remains in the extended state, pulling the sliding pin 306 to press against the slide groove 203. The limiting blocks 303 on both sides of the side plate 202 are close to the left side of the support column 305. The limiting blocks 303 restrict the wave plate 201 from flipping downwards, locking the standard working angle of the wave plate 201 to ensure buffering and smooth discharge.

[0051] Residue cleaning operation: The piston rod of hydraulic cylinder 304 shortens, pushing the sliding pin 306 to slide along the sliding groove 203, causing the side plate 202 and the wave plate 201 to flip downward with the fixed shaft 204 as the fulcrum. The limit block 303 disengages from the support column 305 to release the limit, and the plate surface tilt angle increases to complete the slag discharge. After cleaning, hydraulic cylinder 304 extends again, the sliding pin 306 pulls the component to rotate, and the limit block 303 re-fits the support column 305 and resets and locks.

[0052] A base 307 is provided below the bottom strip 301. Two round rods 308 are fixed on the upper side of the base 307. Both round rods 308 are vertically slidably connected to the bottom strip 301. A stop pin 302 is fixed on the upper part of each round rod 308. The stop pin 302 blocks the upper side of the bottom strip 301 to prevent the round rod 308 from detaching from the bottom strip 301. A compression spring is sleeved on each of the two round rods 308. The compression spring is located between the bottom strip 301 and the base 307. The compression spring gives the bottom strip 301 an upward elastic force.

[0053] like Figure 5 , Figure 6 As shown;

[0054] The bottom strip 301 supports the support column 305 and the entire wave plate buffer assembly. The base 307 is the bottom fixed base. The two are slidably assembled through two vertical round rods 308. The stop pin 302 at the upper end of the round rod 308 is stuck on the upper surface of the bottom strip 301, which restricts the bottom strip 301 from sliding upward and getting out of the round rod 308, thus preventing structural separation failure.

[0055] When rice bran impacts the corrugated plate 201 at high speed, the entire assembly will generate a violent downward vibration load. The load is transmitted to the bottom strip 301, which slides downward along the round rod 308, squeezing the compression spring 1 fitted on the outside of the round rod 308. The compression spring 1 is compressed and shrinks, relying on elastic deformation to absorb and buffer the downward impact vibration.

[0056] After the impact disappears, the compression spring releases its elastic restoring force, pushing the bottom strip 301 upward along the round rod 308 to reset. The stop pin 302 limits the upward movement of the bottom strip 301, ensuring that the entire wave plate assembly is always at the standard working height, thus achieving continuous shock absorption and buffering.

[0057] Four threaded posts 207 are fixed on the upper side of the side panel 202. The cover plate 401 is inserted into the four threaded posts 207. Each threaded post 207 is connected to a nut by thread. The cover plate 401 covers the top of the corrugated plate 201. Multiple steam outlet holes 402 are evenly distributed on the cover plate 401.

[0058] like Figure 7 , Figure 8 As shown;

[0059] The four threaded posts 207 above the side panel 202 serve as the mounting and positioning structure for the cover plate 401. After the cover plate 401 passes through the threaded posts 207, the nuts at the top of the threaded posts are tightened to lock and fix the cover plate. The cover plate 401 completely covers the upper space of the corrugated plate 201, forming a semi-enclosed buffer cavity.

[0060] The high-pressure steam generated by the steam explosion falls with the rice bran into the cavity above the corrugated plate 201. The steam is depressurized outward through the steam outlet holes 402 evenly distributed on the surface of the cover plate 401, preventing the instantaneous high-pressure steam from flowing back upward and impacting the conical expansion pipe 102 and the steam explosion tank outlet, thus protecting the sealing structure of the upstream tank.

[0061] The cover plate 401 also prevents the high-speed splashing rice bran particles from rushing upwards out of the equipment, reducing material loss; the cover plate 401 can be removed by loosening the nut of the threaded column 207, making it convenient for operators to open the cavity for inspection and maintenance, and to clean the accumulated materials inside the corrugated plate 201.

[0062] The base 307 is fixed to one end of the crossbeam 508, and a T-shaped frame 507 is fixed to both ends of the lower side of the crossbeam 508.

[0063] like Figure 6 , Figure 9 As shown;

[0064] The base 307 is rigidly fixed to the end of the crossbeam 508. The crossbeam 508 serves as the main load-bearing beam of the whole machine, bearing the entire weight and impact load of the upper wave plate buffer mechanism. T-shaped frames 507 are welded to both ends of the bottom of the crossbeam 508. The bottom of the T-shaped frames 507 is widened to increase the contact area with the ground, disperse the vertical pressure of the entire discharge structure, and improve the overall support stability.

[0065] A sloping plate 501 is provided below the outlet of the wave plate 201. The sloping plate 501 is inclined, and baffles are provided on both the front and rear sides of the sloping plate 501. A portal frame 503 is fixed between the right ends of the two baffles. Two round rods 504 are slidably connected to the portal frame 503 in the horizontal direction. An arc-shaped plate 502 is provided on the discharge side of the sloping plate 501. The outer side of the arc-shaped plate 502 is fixed to the ends of the two round rods 504. A compression spring is sleeved on each of the two round rods 504. The compression springs provide elastic force to the arc-shaped plate 502 as it approaches the sloping plate 501, allowing the arc-shaped plate 502 to... To buffer the discharge, the other ends of the two round rods 504 are fixed to a connecting rod 505. The arc plate 502 and the connecting rod 505 are located on both sides of the gantry frame 503. A hydraulic cylinder 506 is fixed on the gantry frame 503. The movable end of the hydraulic cylinder 506 presses against the connecting rod 505. When the hydraulic cylinder 506 extends, it drives the connecting rod 505 to move outward, thereby overcoming the elastic force of the two compression springs and driving the two round rods 504 and the arc plate 502 to move outward, so that the arc plate 502 leaves the inclined plate 501 and opens the outlet of the inclined plate 501.

[0066] like Figure 9 , Figure 10 As shown;

[0067] After being buffered by the corrugated plate 201, the rice bran falls from the bottom outlet to the inclined plate 501 arranged below. The baffles on both sides of the inclined plate 501 prevent the material from sliding down from the side, and the rice bran slides to the right along the inclined plate 501 to the discharge port.

[0068] Normal buffer discharge state:

[0069] The compression spring 2 on the gantry frame 503 continuously applies an inward pushing force to the round rod 504, pulling the arc plate 502 tightly against the discharge port of the inclined plate 501. The arc-shaped inner wall of the arc plate 502 reduces the discharge flow cross-section. When rice bran flows through this point, the flow space narrows, and the material flow velocity is further reduced, completing the terminal three-stage buffer and preventing the rice bran from being sprayed and scattered at high speed. When the material accumulates and squeezes the arc plate 502, the compression spring 2 slightly retracts, adaptively adjusting the discharge gap and stabilizing the discharge flow rate. At this time, the piston rod of the hydraulic cylinder 506 is in a retracted state, and no thrust is applied to the connecting rod 505.

[0070] High flow rate discharge or unblocking status:

[0071] When the discharge port is blocked and a large amount of material needs to be discharged quickly, hydraulic cylinder 2 506 is activated. The piston rod extends outward and pushes connecting rod 1 505. Connecting rod 1 505 drives two round rods 2 504 to slide horizontally outward along the portal frame 503, overcoming the pre-tightening force of compression spring 2, and pulling arc plate 502 away from the discharge end of inclined plate 501. The discharge port is fully open, maximizing the flow cross section, and the accumulated and blocked rice bran can be discharged quickly. After the operation is completed, hydraulic cylinder 2 506 retracts, and compression spring 2 rebounds to push arc plate 502 back to its original position and fit against inclined plate 501, restoring the buffered flow-limiting discharge mode.

[0072] Two round rods 509 are fixed to the lower side of the inclined plate 501. The two round rods 509 are vertically slidably connected to the crossbeam 508. A connecting rod 510 is fixed between the lower ends of the two round rods 509. The connecting rod 510 is located on the lower side of the crossbeam 508. A compression spring is sleeved on each of the two round rods 509. The compression spring is set between the inclined plate 501 and the crossbeam 508. The compression spring gives the inclined plate 501 an upward elastic force, so that the inclined plate 501 abuts against the lower end of the wave plate 201. At the same time, the inclined plate 501 can also adapt to the height change of the outlet end of the wave plate 201 by vertically moving the round rods 509.

[0073] like Figure 9 , Figure 10 As shown;

[0074] Two round rods 509 at the bottom of the inclined plate 501 are vertically inserted into the crossbeam 508. The lower end of the round rods 509 is connected and limited by the connecting rod 510 to prevent the round rods 509 from coming off the crossbeam. A compression spring 3 is installed on the outside of the round rods 509. The upper end of the spring presses against the bottom of the inclined plate 501 and the lower end presses against the upper surface of the crossbeam 508, continuously providing upward elastic force to keep the top surface of the inclined plate 501 close to the bottom outlet of the corrugated plate 201, ensuring that all the rice bran falling from the corrugated plate falls accurately into the inclined plate 501 without any gaps in material falling.

[0075] When the rice bran impacts the inclined plate 501 and causes downward vibration, the inclined plate 501 drives the round rod 509 to slide downward along the crossbeam 508, squeezing and compressing the spring 3. The elastic deformation of the spring absorbs the impact vibration of the terminal discharge, realizing secondary vibration reduction of the whole machine. After the impact disappears, the spring rebounds and pushes the inclined plate 501 upward to reset.

[0076] When cleaning residue, hydraulic cylinder 304 drives the corrugated plate 201 to flip downward, the bottom outlet height of the corrugated plate decreases, and the inclined plate 501 is pressed downward. Compression spring 3 compresses and releases, and round rod 3 509 slides downward. The inclined plate 501 moves down synchronously with the outlet of the corrugated plate, always adhering to and receiving the material. After cleaning is completed, the corrugated plate is reset and raised, and compression spring 3 rebounds and lifts the inclined plate 501, automatically restoring the adhering and docking state without the need for manual adjustment of the inclined plate height.

Claims

1. A rice bran steam explosion buffer discharge structure, comprising a circular tube (101), characterized in that: The upper part of the circular tube (101) is provided with a flange, and the circular tube (101) is connected to the outlet of the rice bran gas explosion tank through the flange. The lower part of the circular tube (101) is integrally formed with a tapered expansion tube (102), and the inner side of the tapered expansion tube (102) is provided with multiple spiral guide ribs (103) in a ring.

2. The rice bran steam explosion buffer discharge structure according to claim 1, characterized in that: A wave plate (201) for buffering impact is provided below the tapered expansion tube (102). The wave plate (201) is inclined. The tapered expansion tube (102) is located above the highest position of the wave plate (201). A side panel (202) is provided on the outside of the wave plate (201). The lowest position of the wave plate (201) is the outlet.

3. The rice bran steam explosion buffer discharge structure according to claim 2, characterized in that: The upper part of the side panel (202) is provided with a funnel (205), the lower end of the tapered expansion tube (102) extends into the funnel (205), and multiple rubber blocks (206) for buffering gas impact are evenly distributed on the upper edge of the funnel (205).

4. The rice bran steam explosion buffer discharge structure according to claim 3, characterized in that: The front and rear sides of the upper part of the side panel (202) are fixed with fixed shafts (204). The two fixed shafts (204) are rotatably connected to the upper part of the two support columns (305). The lower ends of the two support columns (305) are fixed on the bottom strip (301), so that the wave plate (201) can rotate to increase the inclination and pour out the residue on the wave plate (201).

5. The rice bran steam explosion buffer discharge structure according to claim 4, characterized in that: A sliding groove (203) is provided on one side of the side panel (202). A hydraulic cylinder (304) is fixed on one of the support columns (305). A sliding pin (306) is fixed on the movable end of the hydraulic cylinder (304). The sliding pin (306) is slidably connected to the sliding groove (203). Limiting blocks (303) are fixed on both the front and rear sides of the side panel (202). The two limiting blocks (303) can abut against the left side of the two support columns (305) respectively. At this time, the wave plate (201) is at the normal working inclination.

6. The rice bran steam explosion buffer discharge structure according to claim 5, characterized in that: A base (307) is provided below the bottom strip (301). Two round rods (308) are fixed on the upper side of the base (307). The two round rods (308) are vertically slidably connected to the bottom strip (301). A stop pin (302) is fixed on the upper part of each round rod (308). The stop pin (302) blocks the upper side of the bottom strip (301) to prevent the round rod (308) from detaching from the bottom strip (301). A compression spring is sleeved on each of the two round rods (308). The compression spring is located between the bottom strip (301) and the base (307). The compression spring gives the bottom strip (301) an upward elastic force.

7. The rice bran steam explosion buffer discharge structure according to claim 6, characterized in that: Four threaded posts (207) are fixed on the upper side of the side panel (202), and a cover plate (401) is inserted into the four threaded posts (207). Each threaded post (207) is connected to a nut by thread. The cover plate (401) covers the top of the corrugated plate (201), and multiple steam outlet holes (402) are evenly distributed on the cover plate (401).

8. The rice bran steam explosion buffer discharge structure according to claim 7, characterized in that: The base (307) is fixed to one end of the crossbeam (508), and a T-shaped frame (507) is fixed to both ends of the lower side of the crossbeam (508).

9. The rice bran steam explosion buffer discharge structure according to claim 8, characterized in that: Below the outlet of the wave plate (201), there is an inclined plate (501). The inclined plate (501) is inclined, and baffles are provided on both the front and rear sides of the inclined plate (501). A portal frame (503) is fixed between the right ends of the two baffles. Two round rods (504) are slidably connected to the portal frame (503) in the horizontal direction. An arc plate (502) is provided on the discharge side of the inclined plate (501). The outer side of the arc plate (502) is fixed to the ends of the two round rods (504). A compression spring is sleeved on each of the two round rods (504). The compression springs provide elastic force to the arc plate (502) as it approaches the inclined plate (501), so that the arc plate (502) can... The discharge is buffered. The other ends of the two round rods (504) are fixed on a connecting rod (505). The arc plate (502) and the connecting rod (505) are located on both sides of the gantry frame (503). A hydraulic cylinder (506) is fixed on the gantry frame (503). The movable end of the hydraulic cylinder (506) is pressed against the connecting rod (505). When the hydraulic cylinder (506) extends, it drives the connecting rod (505) to move outward, thereby overcoming the elastic force of the two compression springs and driving the two round rods (504) and the arc plate (502) to move outward, so that the arc plate (502) leaves the inclined plate (501) and opens the outlet of the inclined plate (501).

10. The rice bran steam explosion buffer discharge structure according to claim 9, characterized in that: Two round rods (509) are fixed on the lower side of the inclined plate (501). The two round rods (509) are vertically slidably connected to the crossbeam (508). A connecting rod (510) is fixed between the lower ends of the two round rods (509). The connecting rod (510) is located on the lower side of the crossbeam (508). A compression spring (3) is sleeved on each of the two round rods (509). The compression spring (3) is set between the inclined plate (501) and the crossbeam (508). The compression spring (3) gives the inclined plate (501) an upward elastic force, so that the inclined plate (501) abuts against the lower end of the wave plate (201). At the same time, the inclined plate (501) can also adapt to the height change of the outlet end of the wave plate (201) by vertically moving through the round rods (509).