A kind of anti-precipitation reaction kettle for bamboo block enzymolysis

Abstract

The present application belongs to the technical field of reaction kettle, and particularly relates to a kind of anti-deposition reaction kettle for bamboo block enzymolysis, including kettle body, the jacket covered in the outside of kettle body and the kettle cover installed on kettle body, the stirring motor is installed on the kettle cover, the power output shaft of stirring motor is rotatably connected with stirring shaft in kettle cover, the stirring blade is installed in the lower end of stirring shaft, the inner container is movably installed in the kettle body, the lower end surface of inner container is provided with filter screen, the stirring blade is located in the inner container, the lifting mechanism for driving the up-and-down movement of inner container is installed in the kettle body. Its purpose is: through the inner container to carry bamboo block, cooperate with the up-and-down movement of inner container to the inner container, the bamboo block precipitated at the bottom of inner container is thrown upward, to avoid the phenomenon of bamboo block sinking.

Description

Technical Field

[0001] This invention belongs to the field of reaction vessel technology, specifically relating to an anti-precipitation reaction vessel for enzymatic hydrolysis of bamboo blocks. Background Technology

[0002] my country is the earliest country to invent papermaking technology and a major paper-producing country. However, its papermaking technology is still relatively backward, mainly employing chemical pulping or chemimechanical processes. Chemical pulping requires a large amount of chemical reagents during the pulping process, and produces a large amount of black liquor during cooking. This black liquor is a major source of pollution, directly polluting water sources and causing significant harm to people's lives.

[0003] Trees are a common raw material for papermaking, but over-harvesting causes severe environmental damage, prompting the search for renewable alternatives. my country is the world's largest producer of bamboo, and bamboo papermaking has a long history in the country. Bamboo (bamboo pulp) fiber, with its eco-friendly, antibacterial, and UV-resistant properties, is now widely used in textiles and household paper products. However, most paper mills still use outdated chemical pulping processes, leading to serious environmental pollution.

[0004] Bio-enzyme pretreatment for preparing bamboo pulp or bamboo fiber is an environmentally friendly and effective pretreatment method. It can cause the surface layer of the fiber cell wall to detach, making the internal structure loose and increasing the degree of water absorption and swelling of the fiber. This is beneficial for the dissociation of the fiber during the subsequent homogenization process. Moreover, the enzyme treatment conditions are mild and environmentally friendly.

[0005] In order to uphold the concept of environmental protection, without using strong acid and strong alkali chemical treatment, the bamboo is mechanically twisted after being treated with biological enzymes. Before the biological enzyme treatment, the bamboo needs to be cut into small pieces and then carried out enzymatic reaction. However, during the enzymatic hydrolysis of bamboo pieces, even under stirring conditions, the bamboo pieces may still sink to the bottom. Therefore, it is necessary to set up a mechanism to prevent the sinking phenomenon from occurring. Summary of the Invention

[0006] The purpose of this invention is to provide an anti-settling reaction vessel for enzymatic hydrolysis of bamboo blocks. The bamboo blocks are supported by an inner liner, and a lifting mechanism moves the inner liner up and down to throw the bamboo blocks that have settled at the bottom of the inner liner upwards, thus preventing the bamboo blocks from sinking to the bottom.

[0007] To achieve the above-mentioned technical objectives, the technical solution adopted by the present invention is as follows:

[0008] A bamboo block enzymatic hydrolysis anti-precipitation reaction vessel includes a vessel body, a jacket covering the outside of the vessel body, and a vessel cover installed on the vessel body. A stirring motor is installed on the vessel cover, and a stirring shaft is rotatably connected to the power output shaft of the stirring motor inside the vessel cover. A stirring blade is installed at the lower end of the stirring shaft. An inner liner is movably installed inside the vessel body. A filter screen is provided on the lower end face of the inner liner. The stirring blade is located inside the inner liner. A lifting mechanism for moving the inner liner up and down is installed inside the vessel body.

[0009] Further specifying, the lifting mechanism includes a central shaft, a lifting sleeve, and a rotating sleeve. The central shaft is fixedly installed inside the vessel body, and a support ring is fixedly installed at the lower part of the central shaft. A compression spring is sleeved between the central shaft, the support ring, and the lifting sleeve. The lifting sleeve is movably mounted on the central shaft and is fixedly connected to the inner liner. The rotating sleeve is rotatably mounted on the central shaft. A connecting shaft is fixedly installed below the stirring blades of the stirring shaft, and the connecting shaft is drively connected to the rotating sleeve. The lower end face of the rotating sleeve has a protrusion, and the upper end face of the lifting sleeve has a groove. This structural design, through the rotation of the stirring shaft, drives the rotating sleeve to rotate. The cooperation of the lifting sleeve, rotating sleeve, and compression spring allows the inner liner to rise and fall during the rotation of the stirring shaft, thereby moving the bamboo blocks settled at the bottom of the inner liner upwards. The structure is simple, requiring no additional power component for the lifting mechanism, thus saving costs.

[0010] Further defining the groove, the groove includes a first inclined surface and a first vertical surface, and the protrusion includes a second inclined surface and a second vertical surface. The angle between the first vertical surface, the second inclined surface, and the horizontal plane is no greater than 90°. With this structural design, during the rotation of the rotating sleeve, when the second inclined surface of the rotating sleeve disengages from the first inclined surface of the lifting sleeve, the first vertical surface does not contact the second vertical surface, and the second inclined surface directly contacts the next first inclined surface. This means the lifting sleeve rises rapidly relative to the rotating sleeve, causing the inner liner to rise rapidly under the action of the compression spring, thus propelling the bamboo pieces settled in the inner liner upwards at high speed.

[0011] Furthermore, the inner wall of the lifting sleeve is fixedly provided with several guide strips, and the central shaft is circumferentially provided with several guide grooves above the support ring, with the guide strips located within the guide grooves. This structural design, through the mutual cooperation of the guide strips and guide grooves, enables the lifting and lowering installation between the lifting sleeve and the central shaft, resulting in a simple structure and convenient use.

[0012] Furthermore, a speed reduction mechanism is provided between the rotating sleeve and the connecting shaft. This structural design reduces the rotational speed of the rotating sleeve while increasing its torque, making it more convenient to use.

[0013] Further specifying, the reduction mechanism is a planetary gear reducer composed of an outer support, an internal gear ring, a planetary carrier, planetary gears, and a sun gear. The outer support is fixedly mounted on the central shaft, the internal gear ring is fixedly mounted on the outer support, the connecting shaft is fixedly connected to the sun gear, and the planetary carrier is fixedly connected to the rotating sleeve. This structural design, using a planetary gear reducer to reduce speed between the rotating sleeve and the connecting shaft, is simple in structure, has a large transmission ratio, and is highly practical.

[0014] Furthermore, a suction pump is installed on the outside of the jacket. The suction pump has an inlet pipe at its inlet end, and the free end of the inlet pipe passes through the jacket and connects to the side wall of the vessel body, communicating with the interior of the vessel body. The free end of the inlet pipe is located below the inner liner. Similarly, the suction pump has an outlet pipe at its outlet end, and the free end of the outlet pipe passes through the side wall of the vessel body, communicating with the interior of the vessel body. The free end of the outlet pipe is located above the inner liner. This structural design allows the suction pump to draw the enzymatic hydrolysate from the lower part of the vessel body to the upper part, completing the vertical flow of the enzymatic hydrolysate inside the vessel body. This results in a more uniform mixing of the enzymatic hydrolysate within the vessel body, ensuring more thorough contact with the bamboo blocks, and enhancing its practicality.

[0015] Furthermore, the free end of the outlet pipe is offset to one side, and the offset direction of the free end of the outlet pipe is opposite to the rotation direction of the stirring blades. This structural design, based on the vertical flow of the enzymatic hydrolysate inside the vessel using a suction pump, further agitates the enzymatic hydrolysate by spraying it with the suction pump, resulting in a more uniform mixing of the hydrolysate within the vessel.

[0016] The invention employing the above technical solution has the following advantages:

[0017] 1. The bamboo blocks are supported by the inner liner, and the lifting mechanism moves the inner liner up and down to throw the bamboo blocks that have settled at the bottom of the inner liner upwards, thus preventing the bamboo blocks from sinking to the bottom.

[0018] 2. The rotation of the stirring shaft drives the rotating sleeve to rotate. The cooperation of the lifting sleeve, the rotating sleeve and the compression spring allows the inner liner to rise and fall during the rotation of the stirring shaft, thereby moving the bamboo blocks settled at the bottom of the inner liner upward. The structure is simple and does not require additional power components for the lifting mechanism, saving costs.

[0019] 3. The rotational speed of the rotating sleeve is reduced by using a reduction mechanism, while the torque of the rotating sleeve is increased, making it more convenient to use;

[0020] 4. The enzymatic hydrolysate from the bottom of the vessel is drawn to the top of the vessel by a suction pump, which completes the vertical flow of the enzymatic hydrolysate inside the vessel. This makes the enzymatic hydrolysate inside the vessel more evenly mixed and more fully in contact with the bamboo blocks, thus making it more practical. Attached Figure Description

[0021] The present invention can be further illustrated by the non-limiting embodiments given in the accompanying drawings;

[0022] Figure 1 This is a schematic diagram of the structure of an anti-precipitation reaction vessel for enzymatic hydrolysis of bamboo blocks according to an embodiment of the present invention;

[0023] Figure 2 This is a cross-sectional structural schematic diagram of an embodiment of an anti-precipitation reaction vessel for enzymatic hydrolysis of bamboo blocks according to the present invention;

[0024] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0025] Figure 4 This is a schematic diagram of the lifting mechanism in an embodiment of the anti-precipitation reaction vessel for bamboo block enzymatic hydrolysis according to the present invention;

[0026] Figure 5 This is a schematic diagram of the central shaft portion in an embodiment of an anti-precipitation reaction vessel for enzymatic hydrolysis of bamboo blocks according to the present invention;

[0027] Figure 6 This is a schematic diagram of the lifting sleeve portion in an embodiment of an anti-precipitation reaction vessel for bamboo block enzymatic hydrolysis according to the present invention;

[0028] The symbols for the main components are explained below:

[0029] 1. Vessel body; 11. Jacket; 12. Vessel lid; 121. Stirring motor; 122. Stirring shaft; 123. Stirring blades.

[0030] Inner liner 2, filter screen 20

[0031] Central shaft 3, support ring 30, compression spring 301, guide groove 302, guide bar 3020,

[0032] Lifting sleeve 31, groove 310, first inclined surface 311, first vertical surface 312.

[0033] Rotating sleeve 32, protrusion 320, connecting shaft 33, outer bracket 34

[0034] 4. Suction pump; 41. Inlet pipe; 42. Outlet pipe. Detailed Implementation

[0035] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that similar or identical parts are referred to by the same reference numerals in the drawings or description. Implementations not shown or described in the drawings are forms known to those skilled in the art. In addition, directional terms mentioned in the embodiments, such as "up," "down," "top," "bottom," "left," "right," "front," and "back," are only for reference to the directions in the drawings and are not intended to limit the scope of protection of the present invention.

[0036] like Figures 1-6 As shown, an anti-precipitation reaction vessel for enzymatic hydrolysis of bamboo blocks according to the present invention includes a vessel body 1, a jacket 11 covering the outside of the vessel body 1, and a vessel cover 12 installed on the vessel body 1. A stirring motor 121 is installed on the vessel cover 12. The power output shaft of the stirring motor 121 is rotatably connected to a stirring shaft 122 inside the vessel cover 12. A stirring blade 123 is installed at the lower end of the stirring shaft 122. An inner liner 2 is movably installed inside the vessel body 1. A filter screen plate 20 is provided on the lower end face of the inner liner 2. The stirring blade 123 is located inside the inner liner 2. A lifting mechanism for driving the inner liner 2 to move up and down is installed inside the vessel body 1.

[0037] The lifting mechanism includes a central shaft 3, a lifting sleeve 31, and a rotating sleeve 32. The central shaft 3 is fixedly installed inside the vessel body 1. A support ring 30 is fixedly installed at the lower part of the central shaft 3. A compression spring 301 is sleeved between the central shaft 3, the support ring 30, and the lifting sleeve 31. The lifting sleeve 31 is movably mounted on the central shaft 3 and is fixedly connected to the inner liner 2. The rotating sleeve 32 is rotatably mounted on the central shaft 3. A connecting shaft 33 is fixedly installed below the stirring blades 123 on the stirring shaft 122. The connecting shaft 33 is drively connected to the rotating sleeve 32. The lower end face of the rotating sleeve 32 has a protrusion 320, and the upper end face of the lifting sleeve 31 has a groove 310. By rotating the stirring shaft 122, the rotating sleeve 32 is driven to rotate. Through the cooperation of the lifting sleeve 31, the rotating sleeve 32, and the compression spring 301, the inner liner 2 can be lifted and lowered during the rotation of the stirring shaft 122, thereby moving the bamboo blocks settled at the bottom of the inner liner 2 upward. The structure is simple and does not require additional power components for the lifting mechanism, saving costs.

[0038] The groove 310 includes a first inclined surface 311 and a first vertical surface 312, and the protrusion 320 includes a second inclined surface and a second vertical surface. The angle between the first vertical surface 312, the second inclined surface, and the horizontal plane is no greater than 90°. During the rotation of the rotating sleeve 32, when the second inclined surface of the rotating sleeve 32 disengages from the first inclined surface of the lifting sleeve 31, the first vertical surface 312 does not contact the second vertical surface, and the second inclined surface directly contacts the next first inclined surface. That is, the lifting sleeve 31 rises rapidly relative to the rotating sleeve 32, thereby causing the inner liner 2 to rise rapidly under the action of the compression spring 301, which in turn causes the bamboo pieces settled in the inner liner 2 to be thrown upwards rapidly.

[0039] The inner wall of the lifting sleeve 31 is fixedly provided with several guide strips 3020, and the central shaft 3 is provided with several guide grooves 302 circumferentially above the support ring 30, with the guide strips 3022 located within the guide grooves 302. Through the mutual cooperation of the guide strips and the guide grooves 302, the lifting sleeve 31 and the central shaft 3 can be lifted and lowered, which is simple in structure and easy to use.

[0040] A speed reduction mechanism is also provided between the rotating sleeve 32 and the connecting shaft 33. The speed reduction mechanism reduces the rotational speed of the rotating sleeve 32 while increasing the torque of the rotating sleeve 32, making it more convenient to use.

[0041] The reduction mechanism is a planetary gear reducer consisting of an outer support 34, an internal gear ring, a planetary carrier, planetary gears, and a sun gear. The outer support 34 is fixedly mounted on the central shaft 3, the internal gear ring is fixedly mounted on the outer support 34, the connecting shaft 33 is fixedly connected to the sun gear, and the planetary carrier is fixedly connected to the rotating sleeve 32. The planetary gear reducer reduces speed between the rotating sleeve 32 and the connecting shaft 33. It has a simple structure, a large transmission ratio, and strong practicality.

[0042] A suction pump 4 is also installed on the outside of the jacket 11. The inlet end of the suction pump 4 is equipped with an inlet pipe 41. The free end of the inlet pipe 41 passes through the jacket 11 and connects to the side wall of the vessel body 1, communicating with the interior of the vessel body 1. The free end of the inlet pipe 41 is located below the inner liner 2. An outlet pipe 42 is installed at the outlet end of the suction pump 4. The free end of the outlet pipe 42 passes through the side wall of the vessel body 1 and connects to the interior of the vessel body 1, located above the inner liner 2. The suction pump 4 draws the enzymatic hydrolysate from the lower part of the vessel body 1 to the upper part, completing the vertical flow of the enzymatic hydrolysate inside the vessel body 1. This ensures that the enzymatic hydrolysate inside the vessel body 1 is mixed more evenly and has more thorough contact with the bamboo blocks, making it highly practical.

[0043] The free end of the outlet pipe 42 is offset to one side, and the offset direction of the free end of the outlet pipe 42 is opposite to the rotation direction of the stirring blade 123. Based on the vertical flow of the enzymatic hydrolysate inside the vessel 1 using the suction pump 4, the enzymatic hydrolysate inside the vessel 1 is agitated a second time by the suction pump 4, so that the enzymatic hydrolysate is mixed more evenly inside the vessel 1.

[0044] In this embodiment, when in use, bamboo blocks and enzymatic hydrolysate are added into the vessel body 1, the stirring motor 121 is started, and the stirring blades 123 are driven to stir the enzymatic hydrolysate. At the same time, the stirring motor 121 drives the reduction mechanism to rotate, which in turn drives the rotating sleeve 32 to rotate, so that the second inclined surface of the protrusion 320 of the rotating sleeve 32 slides on the first inclined surface 311 of the lifting sleeve 31, pressing the lifting sleeve 31 downward and driving the inner liner 2 to move downward.

[0045] Until the second inclined plane separates from the first inclined plane 311, the lifting sleeve 31 moves rapidly upward under the action of the compression spring 301, causing the bamboo block settled at the bottom of the inner liner 2 to be thrown upward quickly, thus making the bamboo block separate from the bottom of the inner liner 2 and preventing it from sinking to the bottom.

[0046] The above provides a detailed description of an anti-precipitation reaction vessel for the enzymatic hydrolysis of bamboo blocks provided by the present invention. The specific embodiments described are merely for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A bamboo block enzymatic hydrolysis anti-precipitation reaction vessel, comprising a vessel body (1), a jacket (11) covering the outside of the vessel body (1), and a vessel cover (12) mounted on the vessel body (1), wherein a stirring motor (121) is mounted on the vessel cover (12), and a stirring shaft (122) is rotatably connected to the power output shaft of the stirring motor (121) inside the vessel cover (12), and a stirring blade (123) is mounted on the lower end of the stirring shaft (122), characterized in that: The inner liner (2) is movably installed inside the vessel body (1). A filter screen plate (20) is provided on the lower end face of the inner liner (2). The stirring blade (123) is located inside the inner liner (2). A lifting mechanism for driving the inner liner (2) to move up and down is installed inside the vessel body (1). The lifting mechanism includes a central shaft (3), a lifting sleeve (31), and a rotating sleeve (32). The central shaft (3) is fixedly installed inside the vessel body (1). A support ring (30) is fixedly installed at the lower part of the central shaft (3). A compression spring (301) is sleeved between the support ring (30) and the lifting sleeve (31) on the central shaft (3). The lifting sleeve (31) can be lifted and lowered on the central shaft (3). The lifting sleeve (31) is fixedly connected to the inner liner (2). The rotating sleeve (32) is rotatably installed on the central shaft (3). A connecting shaft (33) is fixedly installed below the stirring blade (123) on the stirring shaft (122). The connecting shaft (33) is connected to the rotating sleeve (32) in a transmission manner. A protrusion (320) is provided on the lower end face of the rotating sleeve (32). A groove (310) is provided on the upper end face of the lifting sleeve (31). The groove (310) includes a first inclined surface (311) and a first vertical surface (312), and the protrusion (320) includes a second inclined surface and a second vertical surface. The included angle between the first vertical surface (312), the second inclined surface and the horizontal surface is not greater than 90°. The inner wall of the lifting sleeve (31) is fixed with several guide strips (3020), and the central shaft (3) is circumferentially provided with several guide grooves (302) above the support ring (30), and the guide strips (3020) are located in the guide grooves (302).

2. The anti-precipitation reaction vessel for enzymatic hydrolysis of bamboo blocks according to claim 1, characterized in that: A speed reduction mechanism is also provided between the rotating sleeve (32) and the connecting shaft (33).

3. The anti-precipitation reaction vessel for enzymatic hydrolysis of bamboo blocks according to claim 2, characterized in that: The deceleration mechanism is a planetary gear reducer consisting of an outer support (34), an internal gear ring, a planetary support, planetary gears and a sun gear. The outer support (34) is fixedly installed on the central shaft (3), the internal gear ring is fixedly installed on the outer support (34), the connecting shaft (33) is fixedly connected to the sun gear, and the planetary support is fixedly connected to the rotating sleeve (32).

4. The anti-precipitation reaction vessel for enzymatic hydrolysis of bamboo blocks according to claim 1, characterized in that: A suction pump (4) is also installed on the outside of the jacket (11). The suction pump (4) has an inlet pipe (41) installed at its inlet end. The free end of the inlet pipe (41) passes through the jacket (11) and communicates with the inside of the vessel body (1) through the side wall of the vessel body (1). The free end of the inlet pipe (41) is located below the inner liner (2). The suction pump (4) has an outlet pipe (42) installed at its outlet end. The free end of the outlet pipe (42) passes through the side wall of the vessel body (1) and communicates with the inside of the vessel body (1). The free end of the outlet pipe (42) is located above the inner liner (2).

5. The anti-precipitation reaction vessel for enzymatic hydrolysis of bamboo blocks according to claim 4, characterized in that: The free end of the water outlet pipe (42) is offset to one side, and the offset direction of the free end of the water outlet pipe (42) is opposite to the rotation direction of the stirring blade (123).

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