Straw feed explosion rubbing bin

Abstract

The present application relates to the technical field of feed processing, and particularly relates to a straw feed explosion rubbing bin. The straw feed explosion rubbing bin comprises a rubbing mechanism and a vacuum feeding mechanism. The rubbing mechanism comprises a bin body, the bin body is provided with a cavity, a first feeding port and a first discharging port which are communicated with the cavity. The vacuum feeding mechanism comprises a cylinder, a supporting plate assembly and a driving assembly. The cylinder is provided with a vertical cavity, a second feeding port, a second discharging port and a first air hole which are communicated with the cavity. The driving assembly can drive the supporting plate assembly to move along the axial direction of the cavity, and the outer periphery of the supporting plate assembly is sealed and abuts against the inner surface of the cavity. The second feeding port is provided with an explosion valve which is used for connecting a reaction kettle. The second discharging port is provided with an on-off valve which is used for connecting the first feeding port. The first air hole is arranged at the bottom of the cylinder. The straw feed explosion rubbing bin can ensure the explosion rate of the straw feed and improve the explosion effect of the straw feed.

Description

Technical Field

[0001] This invention relates to the field of feed processing technology, and in particular to a straw feed blasting and kneading chamber. Background Technology

[0002] Steam explosion technology, a relatively new fiber treatment technology, works by penetrating steam molecules into plant tissue and then releasing them instantaneously. This converts the steam's internal energy into mechanical energy, which acts on the intercellular layers of plant tissue, disrupting the fiber structure and releasing nutrients. This technology boasts advantages such as short processing time, low cost, no pollution, and high effectiveness. Studies have shown that steam explosion significantly improves the utilization rate of corn stalks, increases rumen fermentation levels, and noticeably eliminates microbial and mycotoxins, resulting in significantly improved production performance and product quality.

[0003] High-temperature, high-pressure steam is introduced into a reactor containing straw feed. After maintaining the pressure for a period of time, the discharge port is opened, and the straw feed is instantly released into the blasting chamber to complete the blasting. The straw feed tumbles and shreds continuously within the blasting chamber. However, when the straw feed is released into the blasting chamber, the gas cannot escape in time. As the pressure inside the blasting chamber increases, the blasting effect is affected. The initial portion of the straw feed has a better blasting effect due to the larger pressure difference, while the blasting rate is affected by the smaller pressure difference in the latter portion. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a straw feed blasting and kneading chamber, which can ensure the blasting rate of straw feed and improve the blasting effect of straw feed.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this application provides a straw feed blasting and kneading chamber, comprising: a kneading mechanism including a chamber body having a cavity and a first inlet and a first outlet communicating with the cavity; and a vacuum feeding mechanism including a cylinder, a pallet assembly, and a drive assembly. The cylinder has a vertical chamber and a second inlet, a second outlet, and a first vent communicating with the chamber. The drive assembly can drive the pallet assembly to move axially along the chamber, and the outer periphery of the pallet assembly is in sealed contact with the inner surface of the chamber. A blasting valve is provided on the second inlet for connecting to a reaction vessel, and a switching valve is provided on the second outlet for connecting to the first inlet. The first vent is located at the bottom of the cylinder.

[0008] In one possible implementation, the pallet assembly includes at least two clamping plates;

[0009] A sealing plate is sandwiched between two adjacent clamping plates, and the outer periphery of the sealing plate abuts against the inner wall of the chamber; and a feeding bracket is disposed on at least two of the clamping plates, the feeding bracket having an inclined support surface, the output end of the support surface being used to connect to the second discharge port.

[0010] In one possible implementation, a pushing mechanism disposed within the cavity is further included. The pushing mechanism includes: a support rod, one end of which is rotatably connected to the inner top wall of the cavity, and the support rod is disposed opposite to the second discharge port; and a pushing plate disposed at the other end of the support rod, the pushing plate having a scraping part that cooperates with the support surface of the feeding bracket.

[0011] In one possible implementation, the support surface of the feeding bracket has a conveying groove that is low in the middle and high on both sides, and the pusher plate can slide along the inner bottom wall of the conveying groove.

[0012] In one possible implementation, a safety valve is provided at the top of the cylinder, the safety valve comprising: an exhaust pipe communicating with the top of the cylinder; and a sealing cover plate, the end of the sealing cover plate being hinged to the top of the exhaust pipe, and the bottom of the sealing cover plate having a sealing ring abutting against the top of the exhaust pipe.

[0013] In one possible implementation, the bottom of the exhaust pipe is provided with a limiting hole, and the safety valve further includes a baffle, a limiting rod and a connecting rod. The bottom end of the limiting rod is connected to the baffle, and the top end of the limiting rod is inserted into the limiting hole. The baffle is located directly below the exhaust pipe and can move along the axial direction of the exhaust pipe. One end of the connecting rod is hinged to the baffle, and the other end is hinged to the sealing cover.

[0014] In one possible implementation, the sealing cover opens to its limit angle when the baffle abuts against the bottom of the exhaust pipe.

[0015] In one possible implementation, the pallet assembly is provided with a mounting hole, and the drive assembly includes: a nut, fixedly disposed in the mounting hole; a drive motor, disposed at the top of the cylinder; a lead screw, passing through the nut and threadedly connected to the nut, the top of the lead screw being connected to the power output end of the drive motor; and a telescopic sleeve, sleeved on the outer periphery of the lead screw.

[0016] In one possible implementation, a spiral guide plate is provided inside the cavity of the hopper, with the input end of the spiral guide plate connected to the first feed port and the output end connected to the first discharge port, and damping baffles are provided on the spiral guide plate.

[0017] In one possible implementation, a second vent is provided at the top of the chamber, and a filter screen is provided inside the second vent.

[0018] (III) Beneficial Effects

[0019] Compared with the prior art, the present invention provides a straw feed blasting and kneading chamber, which has the following beneficial effects: The straw feed blasting and kneading chamber is connected to the discharge port of the reactor through the second inlet of the cylinder. The drive assembly drives the pallet assembly to move downward, creating a negative pressure state in the cylinder chamber. Then, the blasting valve is opened, allowing the straw feed in the reactor to be released into the chamber instantly, increasing the pressure difference during blasting. This ensures the blasting rate of the straw feed and improves the blasting effect. Then, the switch valve is opened, and the lifting pallet assembly lifts the straw feed in the chamber, allowing the straw feed to enter the chamber through the second discharge port to complete the kneading. Attached Figure Description

[0020] Figure 1 This diagram shows a planar structural schematic of a straw feed blasting and kneading chamber provided in an embodiment of this application;

[0021] Figure 2 This is a three-dimensional structural schematic diagram of a straw feed blasting and kneading chamber provided in an embodiment of this application;

[0022] Figure 3 This illustration shows a three-dimensional structural diagram of a straw feed blasting and kneading chamber provided in an embodiment of this application from another angle.

[0023] Figure 4 This illustration shows a three-dimensional structural diagram of a pallet assembly, a drive assembly, and a pushing mechanism provided in an embodiment of this application;

[0024] Figure 5 Show Figure 4 A schematic diagram of the three-dimensional structure from another angle;

[0025] Figure 6 This illustration shows a three-dimensional structural diagram of a safety valve provided in an embodiment of this application;

[0026] Figure 7 Show Figure 6 A schematic diagram of the three-dimensional structure from another angle;

[0027] Figure 8 This diagram illustrates a three-dimensional structure of a spiral guide plate and a damping baffle provided in an embodiment of this application.

[0028] Marked in the attached diagram:

[0029] 1. Kneading mechanism; 11. Bin body; 12. First feed inlet; 13. First discharge outlet; 14. Spiral guide plate; 15. Damping baffle; 16. Second vent; 17. Filter screen;

[0030] 2. Vacuum feeding mechanism; 21. Cylinder; 22. Pallet assembly; 221. Clamping plate; 222. Sealing plate; 223. Feeding bracket; 2231. Support surface; 2232. Conveying groove; 23. Drive assembly; 231. Nut; 232. Drive motor; 233. Lead screw; 234. Telescopic sleeve; 24. Second feed inlet; 241. Bursting valve; 25. Second discharge outlet; 251. Switch valve; 26. First vent; 27. Safety valve; 271. Exhaust pipe; 272. Sealing cover plate; 273. Sealing ring; 274. Baffle; 275. Limiting rod; 276. Connecting rod;

[0031] 3. Pushing mechanism; 31. Support rod; 32. Pushing plate. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Figure 1 This diagram shows a planar structural schematic of a straw feed blasting and kneading chamber provided in an embodiment of this application; Figure 2 This is a three-dimensional structural schematic diagram of a straw feed blasting and kneading chamber provided in an embodiment of this application; Figure 3 This illustration shows a three-dimensional structural diagram of a straw feed blasting and kneading chamber provided in an embodiment of this application from another angle. Figure 4 This illustration shows a three-dimensional structural diagram of a pallet assembly, a drive assembly, and a pushing mechanism provided in an embodiment of this application; Figure 5 Show Figure 4 A schematic diagram of the three-dimensional structure from another angle; Figure 6 This illustration shows a three-dimensional structural diagram of a safety valve provided in an embodiment of this application; Figure 7 Show Figure 6 A schematic diagram of the three-dimensional structure from another angle; Figure 8 This diagram illustrates a three-dimensional structure of a spiral guide plate and a damping baffle provided in an embodiment of this application.

[0034] Please see Figures 1 to 8 This application provides a straw feed blasting and kneading chamber, including: a kneading mechanism 1 and a vacuum feeding mechanism 2, wherein:

[0035] The kneading mechanism 1 includes a chamber 11, which has a cavity and a first feed inlet 12 and a first discharge outlet 13 communicating with the cavity.

[0036] The vacuum feeding mechanism 2 includes a cylinder 21, a pallet assembly 22, and a drive assembly 23. The cylinder 21 has a vertical chamber and a second inlet 24, a second outlet 25, and a first vent 26 communicating with the chamber. The drive assembly 23 can drive the pallet assembly 22 to move axially along the chamber, and the outer periphery of the pallet assembly 22 is in sealed contact with the inner surface of the chamber. A burst valve 241 is provided on the second inlet 24 for connecting to the reactor. A switch valve 251 is provided on the second outlet 25 for connecting to the first inlet 12. The first vent 26 is located at the bottom of the cylinder 21.

[0037] In this application, the discharge port of the reactor is connected to the second feed port 24 of the cylinder 21. The drive assembly 23 drives the pallet assembly 22 to move downward, creating a negative pressure state in the chamber of the cylinder 21. Then, the explosion valve 241 is opened, allowing the straw feed in the reactor to be released into the chamber instantly, increasing the pressure difference during explosion. This ensures the explosion rate of the straw feed and improves the explosion effect. Then, the switch valve 251 is opened, and the straw feed in the chamber is lifted by the lifting pallet assembly 22, allowing the straw feed to enter the bin 11 through the second discharge port 25 to complete the shredding.

[0038] In related technologies, straw feed is directly released into the bin 11 during blasting, and the strong thrust makes it impossible for the straw feed to be effectively shredded. However, this application sets up a buffer cylinder 21 in front of the bin 11, and the straw feed is instantly released into the cylinder 21 during blasting. Then, the straw feed is uniformly transported to the bin 11 for shredding, ensuring the shredding effect of the straw feed.

[0039] Specifically, after the straw feed in the reactor is treated with high temperature and high pressure, it is instantly burst into the cylinder 21. By increasing the pressure difference between the reactor and the cylinder 21, the straw feed in the reactor can be fully discharged into the cylinder 21.

[0040] Moreover, in the existing technology, the powerful air wave during blasting will carry a certain amount of straw fragments out and pollute the working environment. However, this application uses a negative pressure cylinder 21 to receive the blasted straw feed, which can effectively reduce or avoid the generation of air waves and protect the working environment.

[0041] In some embodiments, the pallet assembly 22 includes: at least two clamping plates 221; a sealing plate 222 sandwiched between two adjacent clamping plates 221, with the outer periphery of the sealing plate 222 abutting against the inner wall of the chamber; and a feeding bracket 223 disposed on at least two clamping plates 221, the feeding bracket 223 having an inclined support surface 2231, the output end of the support surface 2231 being used to connect to a second discharge port 25.

[0042] In this application, the sealing plate 222 between the clamping plates 221 abuts against the inner wall of the chamber to achieve sealing, so that when the pallet assembly 22 moves downward, a negative pressure environment is formed in the chamber. The first vent 26 at the bottom is used to discharge gas when the pallet assembly 22 moves downward or to replenish gas when the pallet assembly 22 moves upward. When the feeding bracket 223 moves upward, it pushes the straw feed in the chamber upward, so that the straw feed can be transported to the silo body 11 through the second discharge port 25. The support surface 2231 on the feeding bracket 223 is inclined to facilitate the transport of the straw feed on the feeding bracket 223 to the silo body 11.

[0043] In some embodiments, the device further includes a pushing mechanism 3 disposed in the chamber. The pushing mechanism 3 includes: a support rod 31, one end of which is rotatably connected to the inner top wall of the chamber, and the support rod 31 is disposed opposite to the second discharge port 25; and a pushing plate 32 disposed at the other end of the support rod 31, the pushing plate 32 having a scraping part that cooperates with the support surface 2231 of the feeding bracket 223.

[0044] In this application, when the pallet assembly 22 moves upward, when the bottom of the pusher plate 32 contacts the support surface 2231, as the pallet assembly 22 continues to rise, the pusher plate 32 moves along the support surface 2231 toward the second discharge port 25. The shoveling part of the pusher plate 32 pushes the straw feed on the support surface 2231 toward the second discharge port 25, ensuring that the straw feed can be fully conveyed into the silo 11.

[0045] Since the cylinder 21 adopts a cylindrical structure, the pusher plate 32 has a certain length. Under its own gravity, the pusher plate 32 contacts the inner wall of the chamber, and the support rod 31 is in an inclined state, so that the pusher plate 32 can slide along the support surface 2231 after contacting the support surface 2231.

[0046] In some embodiments, the support surface 2231 of the feeding bracket 223 has a conveying groove 2232 that is low in the middle and high on both sides, and the pusher plate 32 can slide along the inner bottom wall of the conveying groove 2232.

[0047] In this application, the straw feed on the support surface 2231 flows into the conveying groove 2232, and the pusher plate 32 slides along the conveying groove 2232, thereby pushing the straw feed in the conveying groove 2232 and further improving the conveying effect of the straw feed.

[0048] In some embodiments, a safety valve 27 is provided at the top of the cylinder 21. The safety valve 27 includes: an exhaust pipe 271 communicating with the top of the cylinder 21; and a sealing cover plate 272, the end of which is hinged to the top of the exhaust pipe 271, and the bottom of the sealing cover plate 272 has a sealing ring 273 that abuts against the top of the exhaust pipe 271.

[0049] In this application, when the pallet assembly 22 moves downward to evacuate the chamber, the sealing cover 272 tightly covers the top of the exhaust pipe 271 to ensure sealing and to ensure that the chamber can be evacuated to a negative pressure state. In the subsequent explosion process, the air pressure in the chamber may increase. At this time, the sealing cover 272 can be opened to automatically exhaust air and improve safety.

[0050] In some embodiments, the bottom of the exhaust pipe 271 is provided with a limiting hole, and the safety valve 27 further includes a baffle 274, a limiting rod 275 and a connecting rod 276. The bottom end of the limiting rod 275 is connected to the baffle 274, and the top end of the limiting rod 275 is inserted into the limiting hole. The baffle 274 is located directly below the exhaust pipe 271 and can move along the axial direction of the exhaust pipe 271. One end of the connecting rod 276 is hinged to the baffle 274, and the other end is hinged to the sealing cover plate 272.

[0051] In this application, multiple limiting holes are provided along the circumference of the exhaust pipe 271, and multiple limiting rods 275 are provided, which are respectively inserted into multiple limiting holes. The baffle 274 can only move vertically due to the limitation of the limiting rods 275. Normally, there is a space between the baffle 274 and the bottom of the exhaust pipe 271. During the explosion, the straw feed is released into the chamber instantly. The baffle 274 can prevent the straw feed from entering the exhaust pipe 271. Moreover, the baffle 274 is connected to the sealing cover 272 through the connecting rod 276. After the sealing cover 272 is opened, the baffle 274 will tightly cover the bottom of the exhaust pipe 271. Specifically, the baffle 274 is provided with through holes, which can intercept the straw feed, and the airflow can be discharged through the through holes on the baffle 274.

[0052] Optionally, a rubber ring can be installed between the baffle 274 and the bottom of the exhaust pipe 271 to prevent impact noise.

[0053] In some embodiments, when the baffle 274 abuts against the bottom of the exhaust pipe 271, the sealing cover 272 opens to its limit angle.

[0054] In this application, the baffle 274 can also control the maximum opening angle of the sealing cover 272 to prevent the sealing cover 272 from opening too wide and failing to close automatically.

[0055] In some embodiments, the pallet assembly 22 is provided with a mounting hole, and the drive assembly 23 includes: a nut 231, which is fixedly disposed in the mounting hole; a drive motor 232, which is disposed on the top of the cylinder 21; a lead screw 233, which passes through the nut 231 and is threadedly connected to the nut 231, and the top of the lead screw 233 is connected to the power output end of the drive motor 232; and a telescopic sleeve 234, which is sleeved on the outer periphery of the lead screw 233.

[0056] In this application, the drive motor 232 drives the lead screw 233 to rotate, and the lead screw 233 cooperates with the nut 231 to drive the pallet assembly 22 to rise and fall. The telescopic sleeve 234 includes a first sleeve above the pallet assembly 22 and a second sleeve below the pallet assembly 22, which can protect the lead screw 233 on both sides of the pallet assembly 22 respectively.

[0057] Specifically, the drive assembly 23 also includes a limiting member for restricting the rotation of the pallet assembly 22, thereby allowing the pallet assembly 22 to be raised and lowered. The limiting member can be a vertical rod penetrating the pallet assembly 22 or a vertical groove.

[0058] In some embodiments, a spiral guide plate 14 is provided inside the cavity of the hopper 11. The input end of the spiral guide plate 14 is connected to the first feed port 12, and the output end is connected to the first discharge port 13. A damping baffle 15 is provided on the spiral guide plate 14.

[0059] In this application, straw feed is introduced into the cavity through the first feed inlet and then conveyed along the spiral guide plate 14. The damping baffle 15 on the spiral guide plate 14 facilitates the conveying and tumbling of the straw feed, thereby completing the shredding of the straw feed.

[0060] In some embodiments, a second vent 16 is provided on the top of the chamber 11, and a filter screen 17 is provided inside the second vent 16.

[0061] In this application, the second vent 16 at the top of the silo 11 is used to allow the hot air discharged from the silo 11 to be intercepted by the straw feed in the silo 11 through the filter screen 17. Since the straw feed is transported into the silo 11 at a uniform speed, no air wave generated by the instantaneous release of straw feed will be generated.

[0062] The straw feed blasting and kneading chamber is connected to the discharge port of the reactor through the second inlet 24 of the cylinder 21. The drive assembly 23 drives the pallet assembly 22 to move downward, creating a negative pressure state in the chamber of the cylinder 21. Then, the blasting valve 241 is opened, allowing the straw feed in the reactor to be released into the chamber instantly, increasing the pressure difference during blasting. This ensures the blasting rate of the straw feed and improves the blasting effect. Then, the switch valve 251 is opened, and the lifting pallet assembly 22 lifts the straw feed in the chamber, allowing the straw feed to enter the chamber 11 through the second outlet 25 to complete the kneading.

[0063] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0064] It should be readily understood that “on,” “above,” and “on top of” in this disclosure should be interpreted in the broadest manner, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on something” but also “on something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0065] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0066] It should be noted that, in this document, relational terms such as "first" and "second" are used merely 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.

[0067] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A straw feed explosion and kneading chamber, characterized in that, include: A shredding mechanism (1) includes a chamber (11) having a cavity and a first inlet (12) and a first outlet (13) communicating with the cavity; and Vacuum feeding mechanism (2), the vacuum feeding mechanism (2) includes a cylinder (21), a pallet assembly (22) and a drive assembly (23). The cylinder (21) has a vertical chamber and a second inlet (24), a second outlet (25) and a first vent (26) communicating with the chamber. The drive assembly (23) can drive the pallet assembly (22) to move along the axial direction of the chamber, and the outer periphery of the pallet assembly (22) is sealed against the inner surface of the chamber. A burst valve (241) is provided on the second inlet (24) for connecting to the reactor. A switch valve (251) is provided on the second outlet (25) for connecting to the first inlet (12). The first vent (26) is located at the bottom of the cylinder (21). The pallet assembly (22) includes: at least two clamping plates (221); a sealing plate (222) sandwiched between two adjacent clamping plates (221), with the outer periphery of the sealing plate (222) abutting against the inner wall of the chamber; and a feeding bracket (223) disposed on at least two clamping plates (221), the feeding bracket (223) having an inclined support surface (2231), the output end of the support surface (2231) being used to connect to the second discharge port (25); The top of the cylinder (21) is provided with a safety valve (27), which includes: an exhaust pipe (271) communicating with the top of the cylinder (21); and a sealing cover plate (272), the end of which is hinged to the top of the exhaust pipe (271), and the bottom of which has a sealing ring (273) abutting against the top of the exhaust pipe (271).

2. The straw feed explosive kneading chamber according to claim 1, characterized in that, It also includes a pushing mechanism (3) disposed within the cavity, the pushing mechanism (3) comprising: A support rod (31), one end of which is rotatably connected to the inner top wall of the chamber, and the support rod (31) is disposed opposite to the second discharge port (25); and A pusher plate (32) is disposed at the other end of the support rod (31), and the pusher plate (32) has a scraping part that cooperates with the support surface (2231) of the feeding bracket (223).

3. The straw feed blasting and kneading chamber according to claim 2, characterized in that, The feeding bracket (223) has a conveying groove (2232) on its support surface (2231), which is low in the middle and high on both sides. The pusher plate (32) can slide along the inner bottom wall of the conveying groove (2232).

4. The straw feed blasting and kneading chamber according to claim 1, characterized in that, The exhaust pipe (271) has a limiting hole at its bottom. The safety valve (27) also includes a baffle (274), a limiting rod (275), and a connecting rod (276). The bottom end of the limiting rod (275) is connected to the baffle (274), and the top end of the limiting rod (275) is inserted into the limiting hole. The baffle (274) is located directly below the exhaust pipe (271) and can move along the axial direction of the exhaust pipe (271). One end of the connecting rod (276) is hinged to the baffle (274), and the other end is hinged to the sealing cover plate (272).

5. The straw feed blasting and kneading chamber according to claim 4, characterized in that, When the baffle (274) abuts against the bottom of the exhaust pipe (271), the sealing cover (272) opens to its limit angle.

6. The straw feed blasting and kneading chamber according to claim 1, characterized in that, The pallet assembly (22) is provided with mounting holes, and the drive assembly (23) includes: Nut (231) is fixedly installed in the mounting hole; A drive motor (232) is disposed at the top of the cylinder (21); A lead screw (233) passes through the nut (231) and is threadedly connected to the nut (231). The top of the lead screw (233) is connected to the power output end of the drive motor (232). The telescopic sleeve (234) is sleeved on the outer periphery of the lead screw (233).

7. The straw feed blasting and kneading chamber according to claim 1, characterized in that, The cavity of the hopper (11) is provided with a spiral guide plate (14). The input end of the spiral guide plate (14) is connected to the first feed port (12), and the output end is connected to the first discharge port (13). The spiral guide plate (14) is provided with a damping baffle (15).

8. The straw feed explosive kneading chamber according to claim 7, characterized in that, The top of the chamber (11) is provided with a second vent (16), and a filter screen (17) is provided inside the second vent (16).

Images