Continuous apparatus for pretreatment of corn stover by cellulase

Abstract

This utility model relates to the technical field of biomass pretreatment equipment, specifically to a continuous equipment for enzymatic hydrolysis pretreatment of corn stalk cellulose, comprising: a shell with a discharge port at the bottom; a feeding mechanism including a feeding plate fixedly connected to the outside of the shell, a drive motor on the outside of the shell, a rotating shaft fixedly connected to the output shaft of the drive motor, a feeding roller fixedly connected to the outside of the rotating shaft, and a transmission rod above the feeding plate. By setting up this feeding mechanism, when crushing corn stalks, workers place neatly arranged corn stalks onto the feeding plate. Under the action of rotating arc-shaped bars and convex bars, the corn stalks are automatically pushed to the feeding roller, and then fed into the shell at a uniform speed under the action of the feeding roller. No manual continuous feeding is required, and the corn stalks are prevented from swinging due to the limiting effect of the arc-shaped bars and feeding roller, avoiding worker injury during corn stalk crushing and improving the safety of corn stalk crushing.

Description

Technical Field

[0001] This utility model relates to the technical field of biomass pretreatment equipment, specifically to a continuous equipment for enzymatic hydrolysis pretreatment of corn straw cellulose. Background Technology

[0002] Corn stalk cellulose is a natural high-molecular-weight polysaccharide abundant in corn stalks and a major component of plant cell wall skeletons. It is high in strength, poorly soluble, and renewable. The effective separation and utilization of cellulose from corn stalks is of great significance for developing clean energy (biofuels), producing environmentally friendly materials (nanocellulose, bioplastics), realizing the resource utilization of agricultural waste, reducing environmental pollution, and promoting sustainable development. Pre-treatment of corn stalks is necessary during the extraction of cellulase from corn stalks.

[0003] Cellulose enzymatic hydrolysis pretreatment of corn straw is a crucial step in biomass conversion, aiming to break down its stubborn structure, improve cellulose accessibility to enzymes, and thus enhance saccharification efficiency. Corn straw is mainly composed of cellulose, hemicellulose, and lignin, which are tightly cross-linked to form a lignocellulose complex, hindering enzyme contact with cellulose. Therefore, to break down the stubborn structure of corn straw and improve the conversion efficiency of cellulase, it is necessary to crush the corn straw.

[0004] Traditional corn stalk crushing equipment often relies on manual feeding by workers. The moment the root of the corn stalk contacts the crushing blades, the tip is often flung or pulled by the rotating blades, causing arm injuries to workers. Furthermore, the entire corn stalk being fed is prone to uneven crushing, with the ends not being fully crushed before discharge, or the middle being over-crushed while long fibers remain at both ends. This uneven crushing negatively impacts the subsequent cellulase conversion. Therefore, we propose a continuous pretreatment system for corn stalk cellulose enzymatic hydrolysis. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a continuous equipment for enzymatic hydrolysis pretreatment of corn straw cellulose, which can effectively solve the problems mentioned in the background technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution: This utility model provides a continuous equipment for the enzymatic hydrolysis pretreatment of corn stalk cellulose, comprising: The outer casing has a discharge port at its bottom. The feeding mechanism includes a feeding plate fixedly connected to the outside of the housing, a drive motor is provided on the outside of the housing, a rotating shaft is fixedly connected to the output shaft of the drive motor, a feeding roller is fixedly connected to the outside of the rotating shaft, a transmission rod is provided above the feeding plate, a connecting rod is fixedly connected to the outside of the transmission rod, an arc-shaped strip is fixedly connected to the other end of the connecting rod, and convex strips with equal spacing are fixedly connected to the outside of the arc-shaped strip. The crushing mechanism includes two crushing rollers symmetrically arranged inside the outer shell. A second servo motor is fixedly connected to the outer shell, and the output shaft of the second servo motor is fixedly connected to two symmetrically distributed blades.

[0007] Preferably, a motor mount is fixedly connected to the outer side of the housing, the drive motor is mounted on the outer side of the motor mount, and a feed trough is provided on the outer side of the housing.

[0008] Preferably, the outer side of the rotating shaft is movably connected to two symmetrically distributed support blocks via bearings, and the support blocks are fixedly connected to the outer side of the outer shell.

[0009] Preferably, the transmission rod has two symmetrically distributed support seats connected to its outer side via bearings, and the support seats are fixedly connected to the top of the feeding plate.

[0010] Preferably, a driven wheel is fixedly connected to the outside of the transmission rod, a driving wheel is fixedly connected to the outside of the rotating shaft, and the same belt for transmission is provided on the outside of the driving wheel and the driven wheel.

[0011] Preferably, a first servo motor for driving the crushing roller to rotate is provided on the outer side of the housing.

[0012] Preferably, two symmetrically distributed guide plates are fixedly connected to the inner side of the outer shell, and the top of the guide plates is provided with a through groove for the rotation of the blade.

[0013] The technical solution provided by this utility model has the following advantages compared with the known prior art: 1. This utility model, by setting up a feeding mechanism, allows workers to place neat corn stalks onto the feeding plate when crushing corn stalks. Under the action of the rotating arc-shaped strip and the convex strip, the corn stalks can be automatically pushed to the feeding roller. Under the action of the feeding roller, the corn stalks are fed into the outer shell at a uniform speed. There is no need for manual continuous feeding. Moreover, under the limitation of the arc-shaped strip and the feeding roller, the corn stalks will not swing, avoiding worker injury during corn stalk crushing and improving the safety of corn stalk crushing.

[0014] 2. By setting up a crushing mechanism, the rotating blades can cut the whole corn stalk into uniform segments before crushing the corn stalk. The corn stalk segments are of uniform size and are easier to crush thoroughly during crushing. The corn stalks that have been crushed evenly are conducive to the subsequent conversion of cellulase. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the feeding plate structure of this utility model; Figure 3 This is a schematic diagram of the external structure of the outer shell of this utility model; Figure 4 This is a schematic cross-sectional view of the outer shell of this utility model.

[0017] The labels in the diagram represent: 1. Outer shell; 2. Discharge port; 3. Feeding mechanism; 301. Feeding plate; 302. Arc-shaped strip; 303. Protruding strip; 304. Driven wheel; 305. Belt; 306. Drive wheel; 307. Drive motor; 308. Motor base; 309. Rotating shaft; 310. Feeding roller; 311. Support block; 312. Connecting rod; 313. Support base; 314. Transmission rod; 315. Feed chute; 4. Crushing mechanism; 401. First servo motor; 402. Second servo motor; 403. Blade; 404. Guide plate; 405. Crushing roller; 406. Through groove. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0019] The present invention will be further described below with reference to the embodiments. Example

[0020] Reference Figure 1-4 This is the first embodiment of the present invention, which discloses a continuous equipment for enzymatic hydrolysis pretreatment of corn straw cellulose, comprising: The outer shell 1 has a discharge port 2 at the bottom. The discharge port 2 is used to discharge the crushed corn stalk fragments and allow them to enter the next process for cellulose enzymatic hydrolysis. The feeding mechanism 3 includes a feeding plate 301 fixedly connected to the outside of the outer shell 1. The feeding plate 301 facilitates the placement of corn stalks and, together with the arc-shaped strip 302 and the feeding roller 310, feeds the corn stalks. A drive motor 307 is provided on the outside of the outer shell 1. The output shaft of the drive motor 307 is fixedly connected to a rotating shaft 309. The feeding roller 310 is fixedly connected to the outside of the rotating shaft 309. The drive motor 307 can drive the rotating shaft 309 to rotate through the output shaft. The rotation of the rotating shaft 309 can drive the feeding roller 310 to rotate. At the same time, the drive wheel 306, the driven wheel 304 and the belt 305 can drive the transmission rod 314 to rotate synchronously, forming a structural linkage. The transmission rod 314 is provided above the feeding plate 301. A connecting rod 312 is fixedly connected to the outside of the transmission rod 314. The other end of the connecting rod 312 is fixedly connected to the arc-shaped strip 302. The outside of the arc-shaped strip 302 is fixedly connected to the convex strips 303 distributed at equal intervals.

[0021] The curved strip 302 facilitates the movement of the corn stalks on the feeding plate 301, while the raised strip 303 increases the friction between the curved strip 302 and the corn stalks, thereby improving the effect of pushing the corn stalks.

[0022] Specifically, a motor base 308 is fixedly connected to the outside of the outer casing 1, and a drive motor 307 is installed on the outside of the motor base 308. A feed trough 315 is provided on the outside of the outer casing 1.

[0023] The drive motor 307 can be installed using the motor mount 308, ensuring stable operation of the drive motor 307.

[0024] Specifically, two symmetrically distributed support blocks 311 are movably connected to the outer side of the rotating shaft 309 via bearings, and the support blocks 311 are fixedly connected to the outer side of the outer shell 1.

[0025] The support block 311 can support and limit the rotating shaft 309, ensuring that the rotating shaft 309 can rotate between the two support blocks 311.

[0026] Specifically, the transmission rod 314 has two symmetrically distributed support seats 313 connected to its outer side via bearings, and the support seats 313 are fixedly connected to the top of the feeding plate 301.

[0027] The support base 313 supports the transmission rod 314 from both ends, ensuring the stability of the transmission rod 314 during rotation and allowing continuous feeding of corn stalks onto the feeding plate 301.

[0028] Specifically, a driven wheel 304 is fixedly connected to the outside of the transmission rod 314, and a driving wheel 306 is fixedly connected to the outside of the rotating shaft 309. The same belt 305 for transmission is provided on the outside of the driving wheel 306 and the outside of the driven wheel 304.

[0029] The drive motor 307 can drive the rotating shaft 309 to rotate through the output shaft. The rotation of the rotating shaft 309 drives the transmission rod 314 to rotate synchronously through the driving wheel 306, the driven wheel 304 and the belt 305. The two cooperate with each other to feed the corn stalks on the feeding plate 301. Example

[0030] Reference Figure 1 and Figure 3-4 This is the second embodiment of the present invention, which differs from the first embodiment in that: The crushing mechanism 4 includes two crushing rollers 405 symmetrically arranged inside the outer casing 1. A second servo motor 402 is fixedly connected to the outer casing 1. The output shaft of the second servo motor 402 is fixedly connected to two symmetrically distributed blades 403.

[0031] The rotation of the two crushing rollers 405 can crush the chopped corn stalks into corn stalk fragments of suitable size.

[0032] The second servo motor 402 can drive two symmetrically distributed blades 403 to rotate via its output shaft. The rotation of the two blades 403 can cut the fed corn stalks into sections.

[0033] Specifically, a first servo motor 401 for driving the rotation of the crushing roller 405 is provided on the outer side of the outer casing 1. One end of the two crushing rollers 405 passes through the outer casing 1 and extends to the outside of the outer casing 1. Gears are fixedly connected to the outer sides of the two crushing rollers 405. The two gears mesh with each other on opposite sides. The output shaft of the first servo motor 401 is fixedly connected to one of the crushing rollers 405.

[0034] The first servo motor 401 can drive one of the crushing rollers 405 to rotate through the output shaft. The rotation of one crushing roller 405 drives the other crushing roller 405 to rotate in the opposite direction under the action of two gears, thereby crushing the corn stalks. Specifically, two symmetrically distributed guide plates 404 are fixedly connected to the inner side of the outer casing 1, and the top of the guide plate 404 is provided with a through groove 406 for the rotation of the blade 403.

[0035] The guide plate 404 facilitates the entry of the chopped corn stalks into the space between the two crushing rollers 405, which is conducive to crushing. The through groove 406 facilitates the rotation of the blade 403.

[0036] The remaining structure is the same as that in Example 1.

[0037] The workflow of this utility model is as follows: Place the corn stalks that need to be crushed onto the feeding plate 301 and push the corn stalks toward the outer shell 1 until the root of the corn stalks moves below the transmission rod 314, at which point stop pushing the corn stalks. The drive motor 307 drives the rotating shaft 309 to rotate through the output shaft. The rotation of the rotating shaft 309 drives the transmission rod 314 to rotate through the drive wheel 306, the driven wheel 304 and the belt 305. The transmission rod 314 rotates and under the action of the arc-shaped strip 302 and the convex strip 303 mounted on its outer side, it conveys the corn stalks on the feeding plate 301 until they move to the bottom of the feeding roller 310. The rotating feeding roller 310 flattens the corn stalks and conveys them into the inside of the outer shell 1. The corn stalks that have entered the outer casing 1 move to above the blade 403. The second servo motor 402 drives the blade 403 to rotate through the output shaft. The rotating blade 403 cuts the corn stalks that are pushed in at a constant speed. The cut corn stalk segments enter the middle of the two crushing rollers 405 through the guide plate 404. The two crushing rollers 405 rotate in opposite directions and crush the corn stalk segments. The crushed corn stalk fragments are discharged through the discharge port 2 and enter the next processing step.

[0038] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A continuous apparatus for pretreatment of corn stover by enzymatic hydrolysis, characterized by, include: The outer shell (1) has a discharge port (2) at its bottom. The feeding mechanism (3) includes a feeding plate (301) fixedly connected to the outside of the housing (1). A drive motor (307) is provided on the outside of the housing (1). A rotating shaft (309) is fixedly connected to the output shaft of the drive motor (307). A feeding roller (310) is fixedly connected to the outside of the rotating shaft (309). A transmission rod (314) is provided above the feeding plate (301). A connecting rod (312) is fixedly connected to the outside of the transmission rod (314). An arc-shaped strip (302) is fixedly connected to the other end of the connecting rod (312). A convex strip (303) with equal spacing is fixedly connected to the outside of the arc-shaped strip (302). The crushing mechanism (4) includes two crushing rollers (405) symmetrically arranged inside the outer shell (1). A second servo motor (402) is fixedly connected to the outer side of the outer shell (1). The output shaft of the second servo motor (402) is fixedly connected to two symmetrically distributed blades (403).

2. The continuous apparatus for corn stover cellulase pre-treatment according to claim 1, characterized in that, A motor base (308) is fixedly connected to the outside of the outer shell (1), and the drive motor (307) is installed on the outside of the motor base (308). A feed groove (315) is provided on the outside of the outer shell (1).

3. The continuous apparatus for corn stover cellulase pre-treatment according to claim 1, wherein, The outer side of the rotating shaft (309) is movably connected to two symmetrically distributed support blocks (311) via bearings, and the support blocks (311) are fixedly connected to the outer side of the outer shell (1).

4. The continuous apparatus for corn stover cellulase hydrolysis pretreatment according to claim 1, characterized in that, The transmission rod (314) is movably connected to two symmetrically distributed support seats (313) via bearings on its outer side. The support seats (313) are fixedly connected to the top of the feeding plate (301).

5. The continuous apparatus for corn stover cellulase hydrolysis pretreatment according to claim 1, characterized in that, A driven wheel (304) is fixedly connected to the outside of the transmission rod (314), and a driving wheel (306) is fixedly connected to the outside of the rotating shaft (309). The same belt (305) for transmission is provided on the outside of the driving wheel (306) and the outside of the driven wheel (304).

6. The continuous equipment for enzymatic hydrolysis pretreatment of corn straw cellulose according to claim 1, characterized in that, The outer side of the outer casing (1) is provided with a first servo motor (401) for driving the rotation of the crushing roller (405).

7. The continuous apparatus for corn stover cellulase hydrolysis pretreatment according to claim 1, characterized in that, Two symmetrically distributed guide plates (404) are fixedly connected to the inner side of the outer shell (1). The top of the guide plate (404) is provided with a through groove (406) for the rotation of the blade (403).

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