Efficient cellulosic ethanol simultaneous saccharification and fermentation device

Abstract

The utility model relates to the technical field of biological fermentation equipment, and discloses an efficient cellulosic ethanol synchronous saccharification and fermentation device which comprises a mixing bin, a cover plate is arranged at the top of the mixing bin, a first motor is fixedly connected in the cover plate, the output end of the first motor is fixedly connected with a straight gear, a fluted disc is rotationally connected in the cover plate, and a second motor is fixedly connected in the fluted disc. The fluted disc is meshed with the straight gear, a scraping plate is fixedly connected to one side of the outer wall of the fluted disc, the outer wall of the scraping plate is slidably connected to the inner wall of the mixing bin, and a first stirring rod is fixedly connected to the other side of the outer wall of the fluted disc. According to the utility model, firstly, the motor drives the straight gear to rotate so as to drive the fluted disc to rotate and drive the scraping plate to scrape materials on the inner wall of the mixing bin, so that the effect of preventing the materials from adhering to the wall is achieved, the problem that the quality of produced ethanol is not uniform due to insufficient stirring is solved, and the aims of fully stirring cellulase and fermentation liquor and improving the fermentation efficiency are achieved. Therefore, the ethanol production quality is stabilized.

Description

Technical Field

[0001] The utility model relates to the technical field of biological fermentation equipment, in particular to a high-efficiency cellulose ethanol synchronous saccharification and fermentation device. Background Art

[0002] High-efficiency simultaneous saccharification of cellulosic ethanol is a biotechnology that converts cellulose raw materials into fuel ethanol. With the increase in global energy demand and the increasingly serious environmental pollution problem, it is of great significance to use cellulosic ethanol as a renewable energy to replace fossil fuels (such as oil, coal, etc.). High-efficiency simultaneous saccharification technology of cellulosic ethanol can produce fuel ethanol on a large scale, thereby reducing dependence on non-renewable energy and reducing greenhouse gas emissions. In this process, cellulose saccharification, fermentation and ethanol extraction are three key steps. The fermentation device plays a vital role in these three steps.

[0003] After searching, a high-efficiency cellulosic ethanol simultaneous saccharification and fermentation device is disclosed in the announcement number: CN209113877U, including a simultaneous saccharification and fermentation tank, a liquid collecting tank and a gas stripping column. The outer wall of the simultaneous saccharification and fermentation tank is provided with a spiral heating half-tube, an agitator is provided in the tank body, and a motor is provided on the top. A feed port is provided at the upper part of the tank body, and a discharge port is provided at the lower part. The discharge port is divided into material outlet I and material outlet II. Material outlet II is connected to the liquid collecting tank through a pipeline, and the liquid collecting tank is connected to the gas stripping column. The upper head of the gas stripping column is provided with an air outlet, and a fermentation liquid inlet, an air inlet and a gas distributor are provided at the bottom. An overflow port is provided at the top, and the overflow port is connected to the top of the simultaneous saccharification and fermentation tank through a circulation pipe. Under the premise of achieving simultaneous saccharification and enzymatic hydrolysis, the utility model effectively reduces the inhibitory effect of ethanol on fermentation and improves the utilization rate of enzymatic hydrolysis products. Since the entire cycle process is 72 hours, compared with the traditional process, the total enzymatic hydrolysis and fermentation time is shortened, thereby further improving the ethanol yield. In this application, the ethanol yield is improved by structures such as a gas distributor and a fermentation liquid inlet, but when pre-treating the cellulase and the fermentation liquid, they are only stirred by a stirrer, which will cause the cellulase and the fermentation liquid to be not stirred evenly, thereby affecting the quality of ethanol. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a high-efficiency cellulosic ethanol simultaneous saccharification and fermentation device, which aims to improve the problem of uneven quality of the produced ethanol due to insufficient stirring during the pretreatment of cellulase and fermentation liquid.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a high-efficiency cellulose ethanol synchronous saccharification and fermentation device, comprising a mixing bin, a cover plate is arranged on the top of the mixing bin, a motor 1 is fixedly connected inside the cover plate, a spur gear is fixedly connected to the output end of the motor 1, a toothed disc is rotatably connected inside the cover plate, the toothed disc is meshed with the spur gear, a scraper is fixedly connected to one side of the outer wall of the toothed disc, the outer walls of the scraper are all slidably connected to the inner wall of the mixing bin, a stirring rod 1 is fixedly connected to the other side of the outer wall of the toothed disc, a bevel gear 1 is fixedly connected inside the toothed disc, a fixed column is fixedly connected to the inner wall of the mixing bin, a fixed box is fixedly connected to one end of the fixed column, a bevel gear 2 is rotatably connected inside the fixed box, the bevel gear 2 is meshed with the bevel gear 1, a bevel gear 3 is rotatably connected inside the fixed box, the bevel gear 3 is meshed with the bevel gear 2, the inner wall of the bevel gear 3 is rotatably connected to the outer wall of the fixed column, the outer wall of the bevel gear 3 is fixedly connected to the clamping plate rod 2, and a supporting assembly is arranged on the outer wall of the mixing bin.

[0006] Furthermore, the supporting assembly comprises a bracket, and an inner wall of the bracket is fixedly connected to an outer wall of the mixing bin.

[0007] Furthermore, a base is fixedly connected to the lower surface of the mixing bin, a second motor is fixedly connected inside the base, and a transmission belt is fixedly connected to the output end of the second motor.

[0008] Furthermore, a semicircular gear is fixedly connected to the outer wall of the transmission belt, a spur rack is slidably connected to the inside of the base, and the spur rack is meshed with the semicircular gear.

[0009] Furthermore, a slide plate is fixedly connected to the outer wall of the spur rack, and the outer wall of the slide plate is slidably connected to the inside of the base.

[0010] Furthermore, a discharge pipe is fixedly connected to the bottom of the mixing bin, and the lower side of the outer wall of the discharge pipe is fixedly connected to the inside of the base.

[0011] Furthermore, a feed pipe is fixedly connected inside the base, a feed pipe is fixedly connected inside the feed pipe, a valve is provided on the outer wall of the feed pipe, and one end of the feed pipe is fixedly connected to a reaction chamber.

[0012] Furthermore, an annular heating pipe is fixedly connected inside the reaction chamber, and a ventilation pipe is fixedly connected to the top of the reaction chamber.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, firstly, the motor drives the spur gear to rotate, and then drives the toothed disc to rotate, and drives the scraper to scrape the sticky materials on the inner wall of the mixing bin, so as to achieve the effect of preventing the materials from sticking to the wall, and at the same time drives the stirring rod to stir the materials, and at the same time drives the bevel gear to rotate inside the fixed box through the rotation of the toothed disc, and then drives the bevel gear two and the bevel gear three to rotate, so that the stirring rod two rotates in the opposite direction to the stirring rod one, so as to achieve the effect of increasing the stirring frequency, solve the problem of insufficient stirring, resulting in uneven quality of the output ethanol, and achieve the effect of fully stirring the cellulase and the fermentation liquid, thereby stabilizing the quality of ethanol production.

[0015] 2. In the utility model, firstly, the motor drives the transmission belt to rotate, so that the semicircular gears on both sides rotate at the same time, thereby driving the slide plate to move back and forth inside the base through the spur rack, so that the through hole of the slide plate moves repeatedly between the discharge pipe and the down pipe, achieving the effect of fully automatic quantitative feeding, and sending the material inside the mixing bin to the discharge pipe through the down pipe, achieving the conveying effect, and then sent to the inside of the reaction bin through the conveying pipe, the yeast activity is improved by the annular heating pipe, and the ventilation pipe provides sufficient oxygen for the yeast, achieving the effect of fully automatic quantitative feeding to ensure that the material is sent to the next production step at a uniform rate and amount, thereby reducing batch differences and improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of a high-efficiency simultaneous saccharification and fermentation device for cellulose ethanol proposed in the utility model;

[0017] Figure 2 This is a cross-sectional schematic diagram of a mixing bin of a high-efficiency cellulosic ethanol simultaneous saccharification and fermentation device proposed by the utility model;

[0018] Figure 3 This is a schematic diagram of the toothed disc structure of a high-efficiency cellulosic ethanol simultaneous saccharification and fermentation device proposed by the utility model;

[0019] Figure 4 This is a schematic cross-sectional view of the base of a high-efficiency simultaneous saccharification and fermentation device for cellulose ethanol proposed in the utility model;

[0020] Figure 5 This is a schematic diagram of the slide structure of a high-efficiency cellulosic ethanol simultaneous saccharification and fermentation device proposed by the utility model;

[0021] Figure 6 This is a schematic cross-sectional view of a reaction chamber of a high-efficiency cellulosic ethanol simultaneous saccharification and fermentation device proposed in the utility model.

[0022] Legend:

[0023] 1. Mixing bin; 2. Cover plate; 3. Motor 1; 4. Spur gear; 5. Toothed disc; 6. Scraper; 7. Stirring rod 1; 8. Fixed column; 9. Fixed box; 10. Bevel gear 1; 11. Bevel gear 2; 12. Clamp rod 2; 13. Bracket; 14. Base; 15. Motor 2; 16. Transmission belt; 17. Semicircular gear; 18. Spur rack; 19. Slide plate; 20. Discharge pipe; 21. Feed pipe; 22. Feed pipe; 23. Valve; 24. Reaction bin; 25. Ring heating pipe; 26. Ventilation pipe; 27. Bevel gear 3. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Reference Figure 1-3 The utility model provides an embodiment: a high-efficiency cellulose ethanol synchronous saccharification and fermentation device, including a mixing bin 1, a cover plate 2 is arranged on the top of the mixing bin 1, a motor 3 is fixedly connected inside the cover plate 2, a spur gear 4 is fixedly connected to the output end of the motor 3, a toothed disc 5 is rotatably connected inside the cover plate 2, the toothed disc 5 is meshed with the spur gear 4, a scraper 6 is fixedly connected to one side of the outer wall of the toothed disc 5, the outer wall of the scraper 6 is slidably connected to the inner wall of the mixing bin 1, a stirring rod 7 is fixedly connected to the other side of the outer wall of the toothed disc 5, and the inner wall of the toothed disc 5 is fixedly connected to the inner wall of the mixing bin 1. The inner wall of the mixing bin 1 is fixedly connected with a bevel gear 10, a fixed column 8 is fixedly connected with a fixed box 9 at one end of the fixed column 8, a bevel gear 11 is rotatably connected inside the fixed box 9, the bevel gear 11 is meshed with the bevel gear 10, the fixed box 9 is rotatably connected with a bevel gear 27, the bevel gear 27 is meshed with the bevel gear 11, the inner wall of the bevel gear 27 is rotatably connected to the outer wall of the fixed column 8, the outer wall of the bevel gear 27 is fixedly connected with a clamping plate rod 2 12, and a supporting assembly is provided on the outer wall of the mixing bin 1;

[0026] Specifically, first, the output end of the motor 3 is used to drive the spur gear 4 to rotate, and the rotation of the spur gear 4 will further drive the toothed disc 5 to rotate inside the cover plate 2, and the rotation of the toothed disc 5 will drive the scraper 6 and the stirring rod 7 to rotate, thereby forming a continuous transmission chain. In this process, the scraper 6 serves to scrape off the residual material on the inner wall of the mixing bin 1, and the stirring rod 7 stirs the material inside the mixing bin 1 to ensure that the material is fully mixed. In addition, the rotation of the toothed disc 5 will also drive the bevel gear 10 to rotate inside the fixed box 9, and the rotation of the bevel gear 10 is transmitted through the bevel gear 2 11 and the bevel gear 3 27, and finally drives the clamp rod 2 12 to rotate. It is worth noting that the rotation direction of the clamp rod 2 12 is opposite to that of the stirring rod 7, which helps to stir the material more fully.

[0027] Reference Figure 1 , the support assembly includes a bracket 13, the inner wall of the bracket 13 is fixedly connected to the outer wall of the mixing bin 1;

[0028] Specifically, the bracket 13 can achieve the effect of supporting and fixing the mixing bin 1.

[0029] Reference Figure 4 and Figure 5 A base 14 is fixedly connected to the lower surface of the mixing bin 1, a motor 2 15 is fixedly connected inside the base 14, a transmission belt 16 is fixedly connected to the output end of the motor 2 15, a semicircular gear 17 is fixedly connected to the outer wall of the transmission belt 16, a spur rack 18 is slidably connected inside the base 14, the spur rack 18 is meshed with the semicircular gear 17, a slide plate 19 is fixedly connected to the outer wall of the spur rack 18, the outer wall of the slide plate 19 is slidably connected to the inside of the base 14, a discharge pipe 20 is fixedly connected to the bottom of the mixing bin 1, the lower side of the outer wall of the discharge pipe 20 is fixedly connected to the inside of the base 14, a feed pipe 21 is fixedly connected to the inside of the base 14, a feed pipe 22 is fixedly connected to the inside of the feed pipe 21, a valve 23 is provided on the outer wall of the feed pipe 22, and one end of the feed pipe 22 is fixedly connected to the reaction bin 24;

[0030] Specifically, first, the motor 2 15 drives the transmission belt 16 to rotate, and then drives the semicircular gears 17 on both sides to rotate synchronously. The rotation of the semicircular gear 17 is not simply to drive other components. Its purpose is to push the spur rack 18 to move back and forth inside the base 14. This process is like the meshing of gears, which transmits power from the motor 2 15 to the spur rack 18. The movement of the spur rack 18 also drives the slide plate 19 to move. The through hole on the slide plate 19 moves repeatedly between the discharge pipe 20 and the feed pipe 21, like a conveyor belt, which sends the material from the mixing bin 1 to the discharge pipe 20 to the inside of the feed pipe 21. At this point, the material is finally sent to the inside of the reaction bin 24. This process, thanks to the synergistic effect of the motor 2 15, the transmission belt 16, the semicircular gear 17, the spur rack 18, the slide plate 19 and the feed pipe 22, realizes the orderly transportation of materials from the mixing bin 1 to the reaction bin 24.

[0031] Reference Figure 6 , a ring-shaped heating pipe 25 is fixedly connected inside the reaction chamber 24, and a ventilation pipe 26 is fixedly connected to the top of the reaction chamber 24;

[0032] Specifically, the annular heating tube 25 inside the reaction chamber 24 plays a vital role in improving the activity of yeast. Through the annular heating tube 25, the temperature inside the reaction chamber 24 can be precisely controlled to provide a suitable growth environment for the yeast. The ventilation tube 26 provides sufficient oxygen for the yeast to ensure that the yeast can breathe normally, thereby promoting the production of ethanol. At the same time, the ventilation tube 26 can also effectively discharge gases such as carbon dioxide in the reaction chamber 24, maintain the gas circulation in the reaction chamber 24, provide a better growth environment for the yeast, and achieve the effect of improving the quality of ethanol production.

[0033] Working principle: When the high-efficiency cellulosic ethanol simultaneous saccharification and fermentation device is needed, first turn on the motor 3 inside the cover plate 2, and drive the spur gear 4 to rotate through the output end of the motor 3, thereby driving the toothed disc 5 to rotate inside the cover plate 2, and then the rotation of the toothed disc 5 drives the scraper 6 and the stirring rod 7 to rotate, and the scraper 6 is used to scrape off the residual material on the inner wall of the mixing bin 1, and then the stirring rod 7 is used to stir the material inside the mixing bin 1, and then the rotation of the toothed disc 5 drives the bevel gear 10 to rotate inside the fixed box 9, thereby driving the bevel gear 2 11 to rotate the bevel gear 3 27, and then driving the splint rod 2 12 to rotate through the rotation of the bevel gear 3 27, and the rotation of the splint rod 2 12 and the stirring rod 12 are driven by the bevel gear 3 27. The rod 1 7 is opposite to the rod 1, so that the material is fully stirred, and then the motor 2 15 inside the base 14 is turned on, and the transmission belt 16 is driven by the motor 2 15 to rotate, thereby driving the semicircular gears 17 on both sides to rotate at the same time, and then pushing the spur rack 18 to reciprocate inside the base 14, and then the movement of the spur rack 18 drives the slide plate 19 to move, so that the through hole of the slide plate 19 is repeatedly moved between the discharge pipe 20 and the lower feed pipe 21, so that the material sent from the mixing bin 1 to the discharge pipe 20 is sent to the lower feed pipe 21, and then sent to the inside of the reaction bin 24 through the feed pipe 22, and then through the annular heating pipe 25 inside the reaction bin 24 to improve the yeast activity and accelerate the production of ethanol, and finally provide sufficient oxygen for the yeast through the ventilation pipe 26 to achieve the fermentation effect.

[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A highly efficient simultaneous saccharification and fermentation device for cellulosic ethanol, comprising a mixing chamber (1), characterized in that: The mixing bin (1) is provided with a cover plate (2) at the top, a motor (3) is fixedly connected inside the cover plate (2), a spur gear (4) is fixedly connected to the output end of the motor (3), a toothed disc (5) is rotatably connected inside the cover plate (2), the toothed disc (5) is meshed with the spur gear (4), a scraper (6) is fixedly connected to one side of the outer wall of the toothed disc (5), the outer wall of the scraper (6) is slidably connected to the inner wall of the mixing bin (1), a stirring rod (7) is fixedly connected to the other side of the outer wall of the toothed disc (5), a bevel gear (10) is fixedly connected inside the toothed disc (5), and the mixing bin (1) is fixedly connected to the inner wall of the mixing bin (1). 1) The inner wall is fixedly connected with a fixing column (8), one end of the fixing column (8) is fixedly connected with a fixing box (9), the fixing box (9) is internally rotatably connected with a bevel gear 2 (11), the bevel gear 2 (11) is meshed with a bevel gear 1 (10), the fixing box (9) is internally rotatably connected with a bevel gear 3 (27), the bevel gear 3 (27) is meshed with the bevel gear 2 (11), the inner wall of the bevel gear 3 (27) is rotatably connected to the outer wall of the fixing column (8), the outer wall of the bevel gear 3 (27) is fixedly connected with a clamping plate rod 2 (12), and the outer wall of the mixing bin (1) is provided with a supporting assembly.

2. The high-efficiency simultaneous saccharification and fermentation device for cellulosic ethanol according to claim 1, characterized in that: The support assembly comprises a bracket (13), the inner wall of the bracket (13) being fixedly connected to the outer wall of the mixing bin (1).

3. The high-efficiency simultaneous saccharification and fermentation device for cellulosic ethanol according to claim 2, characterized in that: The lower surface of the mixing bin (1) is fixedly connected to a base (14), the interior of the base (14) is fixedly connected to a second motor (15), and the output end of the second motor (15) is fixedly connected to a transmission belt (16).

4. The high-efficiency simultaneous saccharification and fermentation device for cellulose ethanol according to claim 3, characterized in that: The outer wall of the transmission belt (16) is fixedly connected with a semicircular gear (17), and the interior of the base (14) is slidably connected with a spur rack (18), and the spur rack (18) is meshed with the semicircular gear (17).

5. The high-efficiency simultaneous saccharification and fermentation device for cellulose ethanol according to claim 4, characterized in that: The outer wall of the spur rack (18) is fixedly connected to a slide plate (19), and the outer wall of the slide plate (19) is slidably connected to the inside of the base (14).

6. The high-efficiency simultaneous saccharification and fermentation device for cellulose ethanol according to claim 5, characterized in that: A discharge pipe (20) is fixedly connected to the bottom of the mixing bin (1), and the lower side of the outer wall of the discharge pipe (20) is fixedly connected to the inside of the base (14).

7. The high-efficiency simultaneous saccharification and fermentation device for cellulosic ethanol according to claim 6, characterized in that: A feed pipe (21) is fixedly connected to the interior of the base (14), a feed pipe (22) is fixedly connected to the interior of the feed pipe (21), a valve (23) is provided on the outer wall of the feed pipe (22), and one end of the feed pipe (22) is fixedly connected to a reaction chamber (24).

8. The high-efficiency simultaneous saccharification and fermentation device for cellulose ethanol according to claim 7, characterized in that: An annular heating pipe (25) is fixedly connected inside the reaction chamber (24), and a ventilation pipe (26) is fixedly connected to the top of the reaction chamber (24).

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