Cellulosic enzymolysis reaction device for producing cellulosic ethanol

By designing mixing, cleaning, and lifting components for a cellulose enzymatic hydrolysis reactor for cellulose ethanol production, the problem of insufficient raw material mixing was solved, achieving efficient stirring and inner wall cleaning, and improving work efficiency.

CN121801689APending Publication Date: 2026-04-07张世林
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-11-28
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

In existing cellulose enzymatic hydrolysis reactors, the raw materials are thrown against the inner wall of the reactor due to centrifugal force during stirring, resulting in insufficient mixing, increased working time, and reduced work efficiency.

Method used

A cellulosic enzymatic hydrolysis reactor for cellulosic ethanol production was designed, comprising a mixing component, a cleaning component, and a lifting component. The rotating rod drives the intermittent rotation of the contact plate and the turntable, and the cooperation of the arc-shaped connecting plate and the limiting rod achieves full mixing of the raw materials. The cleaning component uses a ratchet and a pawl to drive a scraper to clean the inner wall. The lifting component uses a reciprocating screw and a fixing rod to make the sedimented raw materials rise to the surface, preventing them from settling without being stirred.

Benefits of technology

It achieves thorough mixing of raw materials, reduces mixing time, improves work efficiency, and effectively cleans the inner wall of the reaction device, preventing raw materials from settling to the bottom without being mixed.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of biochemical engineering, and discloses a cellulosic enzymolysis reaction device for cellulosic ethanol production, the cellulosic enzymolysis reaction device for cellulosic ethanol production comprises a reaction device body, the cellulosic enzymolysis reaction device for cellulosic ethanol production is provided with a mixing assembly, a rotating rod rotates to drive an abutting plate to rotate, the surface of the abutting plate abuts against the surface of a sliding plate, and a rotating disc rotates to drive the sliding plate to rotate; under the action of centrifugal force, an arc-shaped connecting plate moves, a sliding block abuts against a concave rod, the concave rod drives a sliding plate to retract into a linkage groove of a rotary disc, a limiting rod limits the sliding plate, the rotary disc cannot continue to rotate at the moment, the sliding block and the arc-shaped connecting plate return to the original position, the surface of an L-shaped rod abuts against a slope block, the slope block drives the limiting rod to retract, and the limiting rod does not abut against the sliding plate any more; when the rotating disc rotates, the sliding plate returns, the abutting plate abuts against the surface of the sliding plate again, the rotating disc is driven to rotate again, the arc-shaped connecting plate can be folded inwards in a reciprocating mode, the thrown-out raw materials can be folded inwards again, and then more sufficient stirring and mixing can be achieved.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of biological chemical industry, in particular to a cellulose enzyme hydrolysis reaction device for cellulose ethanol production. BACKGROUND

[0002] With the gradual depletion of oil resources and the increasing deterioration of the environment, vigorously promoting the use of renewable energy technology has become a research hotspot to reduce dependence on fossil energy and greenhouse gas emissions. Cellulose ethanol technology is a high-end clean energy technology, because it can be used to replace traditional grain ethanol technology, and can be used to produce clean ethanol fuel by using widely existing cellulose biological raw materials on earth. It is highly expected that the enzymatic hydrolysis has high sugar yield, less by-products, mild reaction conditions, low energy consumption and environmental friendliness. In the enzymatic hydrolysis process, cellulase is a complex enzyme system composed of multiple hydrolytic enzymes. A complete cellulase system is usually composed of three types of enzymes with different action modes but can synergistically catalyze the hydrolysis of cellulose. Key enzymes include exoglucanase, endoglucanase and beta-glucosidase. However, due to the long reaction time of enzymatic hydrolysis, it has not yet reached the industrialization level. Therefore, it is particularly important to speed up the enzymatic hydrolysis rate and improve the hydrolysis rate. To speed up the enzyme reaction and strengthen the reaction process, the selection of the reactor is a key factor. At present, the research on cellulose enzyme hydrolysis equipment is still in the laboratory research stage, and most of them focus on the research of process conditions.

[0003] The existing reaction device, when stirring the raw materials, due to the centrifugal force, the raw materials are thrown to the inner wall of the reaction device, so that the stirring and mixing cannot be more sufficient, and more time is needed for stirring and mixing, which will delay a long working time and is not conducive to the improvement of work efficiency. SUMMARY

[0004] The present application aims to provide a cellulose ethanol production cellulose enzyme hydrolysis reaction device to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a cellulose ethanol production cellulose enzyme hydrolysis reaction device, comprising a reaction device body, a motor is fixed at the top of the reaction device body, the output shaft of the motor penetrates the reaction device body, and the output shaft of the motor is rotatably connected with the reaction device body, a rotating rod is rotatably connected to the inner wall top of the reaction device body, the top of the rotating rod is fixedly connected with the bottom of the output shaft of the motor, a mixing assembly, a cleaning assembly and a lifting assembly are arranged in the reaction device body, the mixing assembly comprises:

[0006] A turntable is rotatably connected to the top of the inner wall of the reaction device body. The turntable has a through hole on its surface, and a connecting groove is formed on the inner wall of the through hole near the rotating rod. The rotating rod passes through the through hole of the turntable. A sliding groove is formed at the bottom of the turntable, and a slider is slidably connected to the inner wall of the sliding groove. An arc-shaped connecting plate is fixed to the bottom of the slider. A spring is fixed to one end of the slider near the rotating rod, and the other end of the spring away from the rotating rod is fixed to the inner wall of the sliding groove of the turntable. The mixing assembly also includes a linkage. When the rotating rod rotates, it drives the abutment plate to rotate, and the surface of the abutment plate abuts against the surface of the sliding plate. When the turntable rotates, under the action of centrifugal force, the arc-shaped connecting plate drives the slider to move outward along the sliding groove of the turntable.

[0007] Preferably, the linkage includes a sliding plate, which is slidably connected to the inner wall of the linkage groove of the turntable. A second spring is fixed to the side of the sliding plate away from the rotating rod, and the end of the second spring away from the sliding plate is fixed to the inner wall of the linkage groove of the turntable. An abutment plate is fixed to the surface of the rotating rod. The inner wall of the slide groove of the turntable has a concave groove and an L-shaped groove. A concave rod is slidably connected to the inner wall of the concave groove of the turntable. The end of the concave rod near the rotating rod is fixedly connected to the surface of the sliding plate, and the end of the concave rod away from the sliding plate passes through the slide groove of the turntable and is slidably connected to the inner wall of the slide groove of the turntable. An L-shaped rod is slidably connected to the inner wall of the L-shaped groove of the turntable. One end of the L-shaped rod is fixedly connected to the surface of the slider. The inner wall of the L-shaped groove of the turntable near the rotating rod is slidably connected to the sliding plate. A limiting rod is connected to the rotating rod. A inclined block is fixed to the side of the limiting rod away from the rotating rod. One end of the limiting rod abuts against the surface of the sliding plate. A spring is fixed to the end of the limiting rod away from the sliding plate. The end of the spring is fixed to the inner wall of the L-shaped groove of the turntable. The end of the L-shaped rod away from the slider abuts against the surface of the inclined block away from the limiting rod. The end of the slider away from the spring abuts against the surface of the concave rod. The concave rod will drive the sliding plate to retract into the linkage groove of the turntable. The limiting rod will abut against the surface of the sliding plate, limiting the sliding plate. The turntable cannot continue to rotate. The slider and the arc-shaped connecting plate return to their positions. The slider returns to its position, driving the L-shaped rod to move. The surface of the L-shaped rod will abut against the inclined block. The inclined block drives the limiting rod to retract. The limiting rod no longer abuts against the sliding plate, and the sliding plate returns to its position.

[0008] Preferably, the cleaning assembly includes a scraper, the scraper being slidably connected to the inner wall of the reaction device body on the side near the inner wall of the reaction device body, a ring being fixed to one end of the scraper near the rotating rod, a ratchet being fixed to the inner wall of the ring, a reciprocating screw being fixed to the bottom of the rotating rod, the reciprocating screw passing through the ring, and a pawl being fixed to the surface of the reciprocating screw. When the motor is turned on and reversed, the ring will rotate under the action of the ratchet and the pawl, thereby causing the ring to drive the scraper to rotate.

[0009] Preferably, the lifting assembly includes a fixed rod, which is fixed to the surface of the scraper. The fixed rod passes through a connecting plate, which is slidably connected to the fixed rod. The connecting plate is penetrated by a reciprocating screw, which is also slidably connected to the reciprocating screw. A groove is formed at the bottom of the inner wall of the reaction device body. An abutment block is slidably connected to the inner wall of the groove of the reaction device body. A spring is fixed at the bottom of the abutment block, and the bottom of the spring is fixed to the bottom of the groove of the reaction device body. A through hole is formed on the surface of the connecting plate. When the rotating rod rotates, it drives the reciprocating screw to rotate. Through the fixed rod, the connecting plate will reciprocate linearly.

[0010] Preferably, the end of the limiting rod near the slide plate is configured as an inclined surface.

[0011] Preferably, the surface of the contact block is set as a slope.

[0012] Preferably, the rotating rod has a stirring rod passing through it, and the stirring rod is fixedly connected to the rotating rod to perform stirring.

[0013] Preferably, the surface of the reaction device body is provided with a feed inlet.

[0014] Preferably, the bottom of the reaction device body is provided with a discharge port.

[0015] Preferably, the surface of the arc-shaped connecting plate has through holes to allow the raw materials to pass through.

[0016] Compared with the prior art, the present invention provides a cellulosic enzymatic hydrolysis reaction apparatus for the production of cellulosic ethanol, which has the following beneficial effects:

[0017] 1. The cellulosic enzymatic hydrolysis reactor for cellulosic ethanol production is equipped with a mixing component. The rotating rod drives the contact plate to rotate, and the surface of the contact plate will contact the surface of the sliding plate. The turntable rotates, and under the action of centrifugal force, the arc-shaped connecting plate moves. The slider contacts the concave rod, and the concave rod drives the sliding plate to enter the linkage groove of the turntable. The limiting rod will limit the sliding plate, and the turntable can no longer rotate. At this time, the slider and the arc-shaped connecting plate return to their positions, the surface of the L-shaped rod contacts the inclined block, and the inclined block drives the limiting rod to retract. The limiting rod no longer contacts the sliding plate, the sliding plate returns to its position, and the contact plate will contact the surface of the sliding plate again, driving the turntable to rotate again, so that the arc-shaped connecting plate can reciprocate to retract inward, and the thrown raw materials can be retracted inward, thereby achieving more thorough mixing.

[0018] 2. The cellulosic enzymatic hydrolysis reaction device for cellulosic ethanol production is equipped with a cleaning component. When it is necessary to clean the inner wall of the reaction device, the operator can turn the motor in reverse. At this time, under the action of the ratchet and pawl, the ring will rotate, which will drive the scraper to rotate, so that the scraper can scrape and clean the inner wall of the reaction device.

[0019] 3. The cellulosic enzymatic hydrolysis reaction device for cellulosic ethanol production is equipped with a lifting component. When the rotating rod rotates, it will drive the reciprocating screw to rotate. Through the fixed rod, the connecting plate will move back and forth in a straight line, so that some of the raw materials that have settled to the bottom can rise continuously, thereby preventing some of the raw materials that have settled to the bottom from not being stirred and mixed. Attached Figure Description

[0020] Figure 1 This is a cross-sectional view of a partial internal structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the front view of the structure of the present invention;

[0022] Figure 3 This is a partial bottom view of the structure of the present invention;

[0023] Figure 4 For the present invention Figure 3 Schematic diagram of the enlarged structure of A in the middle;

[0024] Figure 5 This is a partial cross-sectional view of the present invention;

[0025] Figure 6 For the present invention Figure 5 Schematic diagram of the enlarged structure of B;

[0026] Figure 7 For the present invention Figure 6 Schematic diagram of the enlarged C-shaped structure;

[0027] Figure 8 This is a partial top-view cross-sectional structural diagram of the present invention;

[0028] Figure 9 For the present invention Figure 8 Schematic diagram of the enlarged structure of the middle D;

[0029] Figure 10 For the present invention Figure 8 Schematic diagram of the enlarged structure of the middle E;

[0030] Figure 11 This is a front view schematic diagram of the partial connection relationship of the present invention.

[0031] In the diagram: 1. Reactor body; 2. Motor; 3. Feed inlet; 4. Discharge outlet; 5. Rotating rod; 6. Stirring rod; 7. Mixing assembly; 70. Turntable; 71. Slider; 72. Arc-shaped connecting plate; 73. Spring 1; 74. Linkage component; 740. Slide plate; 741. Spring 2; 742. Contact plate; 743. Concave rod; 744. L-shaped rod; 745. Limiting rod; 746. Inclined block; 747. Spring 3; 8. Cleaning assembly; 80. Ring; 81. Scraper; 82. Ratchet; 83. Pad; 84. Reciprocating screw; 9. Lifting assembly; 91. Fixing rod; 92. Spring 4; 93. Contact block; 94. Linkage plate. Detailed Implementation

[0032] like Figures 1-11 As shown, the present invention provides a technical solution: a cellulosic enzymatic hydrolysis reaction device for cellulosic ethanol production, comprising a reaction device body 1, a motor 2 fixed to the top of the reaction device body 1, the output shaft of the motor 2 passing through the reaction device body 1 and rotatably connected to the reaction device body 1, a rotating rod 5 rotatably connected to the top of the inner wall of the reaction device body 1, the top of the rotating rod 5 being fixedly connected to the bottom of the output shaft of the motor 2, and a mixing component 7, a cleaning component 8, and a lifting component 9 being arranged inside the reaction device body 1. The mixing component 7 includes:

[0033] A turntable 70 is rotatably connected to the top of the inner wall of the reaction device body 1. A through hole is opened on the surface of the turntable 70. A linkage groove is opened on the inner wall of the through hole of the turntable 70 near the rotating rod 5. The rotating rod 5 passes through the through hole of the turntable 70. A sliding groove is opened at the bottom of the turntable 70. A slider 71 is slidably connected to the inner wall of the sliding groove of the turntable 70. An arc-shaped connecting plate 72 is fixed at the bottom of the slider 71. A spring 73 is fixed at the end of the slider 71 near the rotating rod 5. The end of the spring 73 away from the rotating rod 5 is fixed to the inner wall of the sliding groove of the turntable 70. The mixing component 7 also includes a linkage 74. When the rotating rod 5 rotates, it will drive the abutment plate 742 to rotate. At this time, the surface of the abutment plate 742 will abut the surface of the sliding plate 740. At this time, the turntable 70 rotates. Under the action of centrifugal force, the arc-shaped connecting plate 72 drives the slider 71 to move outward along the sliding groove of the turntable 70.

[0034] The linkage 74 includes a slide plate 740, which is slidably connected to the inner wall of the linkage groove of the turntable 70. A second spring 741 is fixed to the side of the slide plate 740 away from the rotating rod 5. The end of the second spring 741 away from the slide plate 740 is fixed to the inner wall of the linkage groove of the turntable 70. An abutment plate 742 is fixed to the surface of the rotating rod 5. The inner wall of the groove of the turntable 70 has a concave groove and an L-shaped groove. A concave rod 743 is slidably connected to the inner wall of the concave groove of the turntable 70. The end of the concave rod 743 near the rotating rod 5 is fixedly connected to the surface of the slide plate 740. The end of the concave rod 743 away from the slide plate 740 passes through the groove of the turntable 70. 743 is slidably connected to the inner wall of the groove of the turntable 70. An L-shaped rod 744 is slidably connected to the inner wall of the L-shaped groove of the turntable 70. One end of the L-shaped rod 744 is fixedly connected to the surface of the slider 71. A limit rod 745 is slidably connected to the inner wall of the L-shaped groove of the turntable 70 near the rotating rod 5. An inclined block 746 is fixed to the side of the limit rod 745 away from the rotating rod 5. One end of the limit rod 745 abuts against the surface of the slide plate 740. A spring 747 is fixed to the end of the limit rod 745 away from the slide plate 740. The end of the spring 747 away from the limit rod 745 is fixed to the inner wall of the L-shaped groove of the turntable 70. The L-shaped rod 744 is away from the slider 71. One end of the slider 71 contacts the surface of the inclined block 746 away from the limiting rod 745. When the end of the slider 71 away from the spring 73 contacts the surface of the concave rod 743, the concave rod 743 will drive the slide plate 740 to retract into the linkage groove of the turntable 70. At this time, under the action of the spring 747, the limiting rod 745 will contact the surface of the slide plate 740, thereby limiting the slide plate 740. At this time, the contact plate 742 can no longer contact the slide plate 740, so the turntable 70 can no longer rotate. At this time, under the action of the spring 73, the slider 71 and the arc-shaped connecting plate 72 will return to their positions. When the slider 71 returns to its position... This will cause the L-shaped rod 744 to move synchronously, so that the surface of the L-shaped rod 744 will abut against the inclined block 746, which will cause the inclined block 746 to drive the limit rod 745 to retract, so that the limit rod 745 no longer abuts against the slide plate 740. At this time, the slide plate 740 returns to its position under the action of the second spring 741. At this time, the abutting plate 742 will abut against the surface of the slide plate 740 again, which will drive the turntable 70 to rotate again. Through the intermittent rotation of the turntable 70, the arc-shaped connecting plate 72 can reciprocate to retract inward, so that the raw materials thrown out due to centrifugal force can be retracted inward, thereby achieving more thorough mixing.

[0035] The cleaning assembly 8 includes a scraper 81. The scraper 81 is slidably connected to the inner wall of the reaction device body 1 on one side. A ring 80 is fixed to one end of the scraper 81 near the rotating rod 5. A ratchet 82 is fixed to the inner wall of the ring 80. A reciprocating screw 84 is fixed to the bottom of the rotating rod 5. The reciprocating screw 84 passes through the ring 80. A pawl 83 is fixed to the surface of the reciprocating screw 84. When it is necessary to clean the inner wall of the reaction device body 1, the operator can turn the motor 2 in reverse. At this time, under the action of the ratchet 82 and the pawl 83, the ring 80 will rotate, which will drive the scraper 81 to rotate, so that the scraper 81 scrapes and cleans the inner wall of the reaction device body 1.

[0036] The lifting assembly 9 includes a fixed rod 91, which is fixed to the surface of the scraper 81. The fixed rod 91 passes through a connecting plate 94, which is slidably connected to the fixed rod 91. The connecting plate 94 is passed through by a reciprocating screw 84, which is also slidably connected to the reciprocating screw 84. A groove is provided at the bottom of the inner wall of the reaction device body 1. A contact block 93 is slidably connected to the inner wall of the groove of the reaction device body 1. A spring 92 is fixed at the bottom of the contact block 93. The bottom of the spring 92 is fixed to the bottom of the groove of the reaction device body 1. A through hole is provided on the surface of the connecting plate 94. When the rotating rod 5 rotates, it will drive the reciprocating screw 84 to rotate. Through the fixed rod 91, the connecting plate 94 will move linearly back and forth, so that some materials that have settled to the bottom can continuously rise to the top, thereby preventing some materials that have settled to the bottom from not being stirred and mixed.

[0037] The end of the limiting rod 745 near the slide plate 740 is set as an inclined surface, and the surface of the contact block 93 is set as an inclined surface; the rotating rod 5 has a stirring rod 6 passing through it, and the stirring rod 6 is fixedly connected to the rotating rod 5 so as to carry out stirring; the surface of the reaction device body 1 is provided with a feed port 3; the bottom of the reaction device body 1 is provided with a discharge port 4; the surface of the arc-shaped connecting plate 72 is provided with a through hole so as not to obstruct the passage of raw materials.

[0038] During operation, raw materials are fed into the feed inlet 3, and the motor 2 is turned on, causing the rotating rod 5 to drive the stirring rod 6 to rotate, thereby mixing the raw materials. Simultaneously, as the rotating rod 5 rotates, it drives the contact plate 742 to rotate. At this time, the surface of the contact plate 742 abuts against the surface of the sliding plate 740. Meanwhile, the turntable 70 rotates, and under the action of centrifugal force, the arc-shaped connecting plate 72 drives the slider 71 to move outward along the groove of the turntable 70. When the end of the slider 71 away from the spring 73 abuts against the surface of the concave rod 743, the concave rod 743 will... The sliding plate 740 is retracted into the linkage groove of the turntable 70. At this time, under the action of spring 747, the limiting rod 745 will abut against the surface of the sliding plate 740, thus limiting the sliding plate 740. At this time, the abutment plate 742 can no longer abut against the sliding plate 740, so the turntable 70 can no longer rotate. Then, under the action of spring 73, the slider 71 and the arc-shaped connecting plate 72 will return to their positions. When the slider 71 returns to its position, it will drive the L-shaped rod 744 to move synchronously, so that the surface of the L-shaped rod 744 will abut against the inclined block 746. This causes the inclined block 746 to retract the limiting rod 745, thus preventing the limiting rod 745 from contacting the slide plate 740. At this point, the slide plate 740 returns to its original position under the action of the second spring 741. The contact plate 742 then re-contacts the surface of the slide plate 740, causing the turntable 70 to rotate again. Through the intermittent rotation of the turntable 70, the arc-shaped connecting plate 72 can reciprocate inward, allowing the raw materials thrown out due to centrifugal force to re-gather inward, thus achieving more thorough mixing. Simultaneously, as the rotating rod 5 rotates... When the reciprocating screw 84 rotates, the connecting plate 94 will reciprocate linearly through the fixed rod 91, allowing some of the settled materials to rise continuously, thus preventing some of the settled materials from not being stirred and mixed. When it is necessary to clean the inner wall of the reaction device body 1, the operator can turn the motor 2 in reverse. At this time, under the action of the ratchet 82 and the pawl 83, the ring 80 will rotate, which will drive the scraper 81 to rotate, so that the scraper 81 will scrape and clean the inner wall of the reaction device body 1.

[0039] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A cellulosic enzymatic hydrolysis reaction apparatus for producing cellulosic ethanol, comprising a reaction apparatus body (1), characterized in that: A motor (2) is fixed to the top of the reaction device body (1). The output shaft of the motor (2) passes through the reaction device body (1) and is rotatably connected to the reaction device body (1). A rotating rod (5) is rotatably connected to the top of the inner wall of the reaction device body (1). The top of the rotating rod (5) is fixedly connected to the bottom of the output shaft of the motor (2). The interior of the reaction device body (1) is provided with a mixing component (7), a cleaning component (8), and a lifting component (9). The mixing component (7) includes: A turntable (70) is rotatably connected to the top of the inner wall of the reaction device body (1). A through hole is provided on the surface of the turntable (70). A linkage groove is provided on the inner wall of the through hole of the turntable (70) near the rotating rod (5). The rotating rod (5) passes through the through hole of the turntable (70). A sliding groove is provided at the bottom of the turntable (70). A slider (71) is slidably connected to the inner wall of the sliding groove of the turntable (70). An arc-shaped connecting plate (72) is fixed at the bottom of the slider (71). A spring (73) is fixed at one end of the slider (71) near the rotating rod (5). The end of the spring (73) away from the rotating rod (5) is fixed on the inner wall of the sliding groove of the turntable (70). The mixing assembly (7) also includes a linkage (74).

2. The cellulosic enzymatic hydrolysis apparatus for producing cellulosic ethanol according to claim 1, characterized in that: The linkage (74) includes a sliding plate (740), which is slidably connected to the inner wall of the linkage groove of the turntable (70). A second spring (741) is fixed to the side of the sliding plate (740) away from the rotating rod (5). The end of the second spring (741) away from the sliding plate (740) is fixed to the inner wall of the linkage groove of the turntable (70). A contact plate (742) is fixed to the surface of the rotating rod (5). A concave groove and an L-shaped groove are provided in the inner wall of the groove of the turntable (70). A concave rod (743) is slidably connected to the inner wall of the concave groove of the turntable (70). The end of the concave rod (743) near the rotating rod (5) is fixedly connected to the surface of the sliding plate (740). The end of the concave rod (743) away from the sliding plate (740) passes through the groove of the turntable (70), and the concave rod (743) is connected to the groove of the turntable (70). The inner wall is slidably connected, and an L-shaped rod (744) is slidably connected to the inner wall of the L-shaped groove of the turntable (70). One end of the L-shaped rod (744) is fixedly connected to the surface of the slider (71). A limit rod (745) is slidably connected to the inner wall of the L-shaped groove of the turntable (70) near the rotating rod (5). An inclined block (746) is fixed to the side of the limit rod (745) away from the rotating rod (5). One end of the limit rod (745) abuts against the surface of the slide plate (740). A spring three (747) is fixed to the end of the limit rod (745) away from the slide plate (740). The end of the spring three (747) away from the limit rod (745) is fixed to the inner wall of the L-shaped groove of the turntable (70). The end of the L-shaped rod (744) away from the slider (71) abuts against the surface of the inclined block (746) away from the limit rod (745).

3. The cellulosic enzymatic hydrolysis apparatus for producing cellulosic ethanol according to claim 1, characterized in that: The cleaning assembly (8) includes a scraper (81), which is slidably connected to the inner wall of the reaction device body (1) on one side. A ring (80) is fixed to one end of the scraper (81) near the rotating rod (5). A ratchet (82) is fixed to the inner wall of the ring (80). A reciprocating screw (84) is fixed to the bottom of the rotating rod (5). The reciprocating screw (84) passes through the ring (80). A pawl (83) is fixed to the surface of the reciprocating screw (84).

4. The cellulosic enzymatic hydrolysis apparatus for producing cellulosic ethanol according to claim 3, characterized in that: The lifting assembly (9) includes a fixed rod (91) fixed to the surface of the scraper (81). The fixed rod (91) passes through a connecting plate (94), which is slidably connected to the fixed rod (91). The connecting plate (94) is penetrated by a reciprocating screw (84), and the connecting plate (94) is slidably connected to the reciprocating screw (84). The bottom of the inner wall of the reaction device body (1) is provided with a groove. The inner wall of the groove of the reaction device body (1) is slidably connected with an abutment block (93). The bottom of the abutment block (93) is fixed with a spring four (92). The bottom of the spring four (92) is fixed to the bottom of the groove of the reaction device body (1). The surface of the connecting plate (94) is provided with a through hole.

5. The cellulosic enzymatic hydrolysis apparatus for producing cellulosic ethanol according to claim 2, characterized in that: The end of the limiting rod (745) near the slide plate (740) is set as an inclined surface.

6. The cellulosic enzymatic hydrolysis apparatus for producing cellulosic ethanol according to claim 4, characterized in that: The surface of the contact block (93) is set as a slope.

7. The cellulosic enzymatic hydrolysis apparatus for cellulosic ethanol production according to claim 1, characterized in that: The rotating rod (5) has a stirring rod (6) passing through it, and the stirring rod (6) is fixedly connected to the rotating rod (5).

8. The cellulosic enzymatic hydrolysis apparatus for cellulosic ethanol production according to claim 1, characterized in that: The surface of the reaction device body (1) is provided with a feed inlet (3).

9. The cellulosic enzymatic hydrolysis apparatus for producing cellulosic ethanol according to claim 1, characterized in that: The bottom of the reaction device body (1) is provided with a discharge port (4).

10. The cellulosic enzymatic hydrolysis apparatus for producing cellulosic ethanol according to claim 1, characterized in that: The surface of the arc-shaped connecting plate (72) has through holes.