Treatment reaction device

Abstract

The utility model provides a treatment reaction device and relates to the technical field of pretreatment. The treatment reaction device comprises a reaction kettle and an anti-blocking stirring structure, one end of the reaction kettle in the axial direction of the reaction kettle is provided with a feed port, and the other end of the reaction kettle is provided with a discharge port; the anti-blocking stirring structure is arranged in the reaction kettle and can rotate relative to the reaction kettle; wherein a containing cavity is formed in the anti-blocking stirring structure, and the containing cavity is used for containing materials. The feeding, reacting and discharging processes of materials are continuous, the operation time is saved, the operation difficulty is reduced, and the production efficiency is improved. The anti-blocking stirring structure can rotate relative to the reaction kettle, so that the materials are fully contacted and mixed. The containing cavity of the anti-blocking stirring structure provides a containing space for the materials, the materials can be limited into the containing cavity, and when the anti-blocking stirring structure rotates relative to the reaction kettle, the materials cannot be clamped between the reaction kettle and the anti-blocking stirring structure, so that the rotation smoothness of the anti-blocking stirring structure is guaranteed.

Description

Technical Field

[0001] The utility model generally relates to the technical field of pretreatment, and in particular to a treatment reaction device. Background Art

[0002] At present, the global demand for biomass is gradually increasing, and pretreatment is an important step in the processing of biomass. Biomass such as straw contains not only cellulose, but also lignin, hemicellulose and other components. Hemicellulose is located on the surface of cellulose fibrils. Cellulose and lignin are usually combined together, making biomass pretreatment more difficult.

[0003] The existing processing reaction device includes a reactor and a spiral agitator. The reactor is a vertical structure. The spiral agitator is used to pretreat the biomass in the reactor. However, due to the relatively long length of the biomass, the longer biomass is easily entangled in the spiral agitator, or the biomass is stuck between the spiral agitator and the inner wall of the reactor. There are problems of locking and blocking of the spiral agitator, which affects the mixing and heating uniformity of the biomass, thereby affecting the reliability of the processing reaction device. Utility Model Content

[0004] The utility model provides a processing reaction device, which reduces the situation of stagnation and blockage.

[0005] According to a first aspect of the present invention, there is provided a processing reaction device, comprising:

[0006] A reactor, wherein one end of the reactor is provided with a feed inlet and the other end is provided with a discharge outlet along the axial direction of the reactor;

[0007] An anti-blocking stirring structure is disposed in the reactor and is rotatable relative to the reactor;

[0008] Wherein, a containing cavity is arranged in the anti-blocking stirring structure, and the containing cavity is used for containing materials.

[0009] In some embodiments, the reactor is provided with a steam inlet and a steam outlet;

[0010] The processing reaction device further comprises a pressure-maintaining structure, which is arranged in the reaction kettle and is used for maintaining the pressure of the containing chamber.

[0011] In some embodiments, the pressure-maintaining structure includes a first buffer portion, which is disposed in the reactor and between the feed port and the anti-blocking stirring structure, so that the pressure in the feed port, the first buffer portion and the containing chamber gradually increases.

[0012] In some embodiments, the processing reaction device also includes a second buffer portion, which is arranged in the reactor and between the anti-blocking stirring structure and the discharge port, so that the pressure in the accommodating chamber, the second buffer portion and the discharge port is gradually reduced.

[0013] In some embodiments, it also includes:

[0014] A screw rod, wherein the screw rod is disposed through the feed port and / or the discharge port;

[0015] A driving source is arranged outside the reactor, an output end of the driving source is connected to the screw, and the driving source can drive the screw to rotate;

[0016] And / or, the screw is a twin-screw structure.

[0017] In some embodiments, the anti-blocking stirring structure includes:

[0018] The accommodating tube is provided with a through hole, the accommodating cavity is provided in the accommodating tube, and the accommodating cavity is communicated with the through hole.

[0019] In some embodiments, the anti-blocking stirring structure further includes a reinforcing rod, and the reinforcing rod is disposed in the containing cylinder.

[0020] In some embodiments, a guide structure is further included, and the guide structure is arranged on the anti-blocking stirring structure, and is used to guide the material into the reactor in a direction away from the feed port;

[0021] And / or, the guide structure comprises a guide plate, and the guide plate is a spiral structure;

[0022] And / or, there are multiple guide blades, and the multiple guide blades are arranged in parallel and at intervals along the axial direction of the reactor;

[0023] And / or, there are multiple guide blades, and the multiple guide blades are arranged in parallel and at intervals along the circumferential direction of the reactor;

[0024] And / or, the projections of the plurality of guide plates relative to the reference plane do not overlap;

[0025] Wherein, the reference plane is arranged perpendicularly to the axial direction of the reactor; and / or, the reference plane is arranged parallel to the axial direction of the reactor.

[0026] In some embodiments, it also includes:

[0027] A rotating shaft, a support rod is provided inside at least one end of the reactor along the axial direction of the reactor, and the rotating shaft passes through the anti-blocking stirring structure and the support rod, so that there is a gap between the anti-blocking stirring structure and the inner wall of the reactor;

[0028] A rotation driving source is arranged outside the reactor, and an output end of the rotation driving source is connected to the rotating shaft, so that the rotating shaft drives the anti-blocking stirring structure to rotate;

[0029] And / or, the reaction kettle comprises a kettle body and a kettle cover, the feed port is arranged on at least one of the kettle body and the kettle cover, and the kettle cover is arranged on at least one end of the kettle body along the axial direction of the kettle body and is detachably connected to the kettle body;

[0030] And / or, the rotating shaft comprises a first connecting shaft and a second connecting shaft, the first connecting shaft is passed through the reactor and connected to the output end of the rotating driving source, the second connecting shaft is arranged in the reactor and connected to the anti-blocking stirring structure, and the ends of the first connecting shaft and the second connecting shaft close to each other are detachably connected;

[0031] And / or, the reaction kettle comprises a kettle body, a kettle cover and a kettle bottom, the kettle cover and the kettle bottom are respectively arranged at two ends of the kettle body along the axial direction of the kettle body, the kettle cover is detachably connected to the kettle body, the feed port is arranged on the kettle cover, and the discharge port is arranged on the kettle bottom;

[0032] The rotating shaft includes a first connecting shaft and a second connecting shaft, wherein the first connecting shaft is passed through the reactor and connected to the output end of the rotating driving source, and the second connecting shaft is arranged in the reactor and connected to the anti-blocking stirring structure, and the first connecting shaft and the second connecting shaft are connected at one end close to each other;

[0033] And / or, the rotating shaft further includes an intermediate connecting shaft, the intermediate connecting shaft is disposed between the first connecting shaft and the second connecting shaft, and the intermediate connecting shaft is detachably connected to the first connecting shaft and the second connecting shaft, respectively.

[0034] In some embodiments, the reactor further comprises a material guiding structure, wherein the material guiding structure is at least partially disposed in the reactor, and the feed inlet is disposed at an end of the material guiding structure away from the reactor;

[0035] And / or, further comprising a heat-insulating layer, wherein the heat-insulating layer is disposed on at least one of the inner wall and the outer wall of the reactor;

[0036] And / or, further comprising a sensor, wherein the sensor is at least partially disposed in the reactor and is used to detect at least one of the temperature, humidity and pressure in the reactor;

[0037] And / or, the axial direction of the reactor is arranged parallel to the horizontal plane.

[0038] An embodiment of the utility model has the following advantages or beneficial effects:

[0039] The processing reaction device provided by the embodiment of the utility model, since the feed port and the discharge port are respectively arranged at the two ends of the reactor, the material is fed from the front end of the reactor, and then the material that has completed the pretreatment reaction is directly discharged from the rear end of the reactor, so that the feeding, reaction and discharge processes of the material are continuous, saving operation time and operation difficulty, and improving production efficiency. The anti-blocking stirring structure can be rotated relative to the reactor to achieve full contact and mixing of the materials. The accommodating cavity of the anti-blocking stirring structure provides a accommodating space for the material, and the material can be confined to the inside of the accommodating cavity. When the anti-blocking stirring structure rotates relative to the reactor, the material will not be stuck between the reactor and the anti-blocking stirring structure, so as to ensure the smooth rotation of the anti-blocking stirring structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to better understand the utility model, reference may be made to the embodiments shown in the following drawings. The components in the drawings are not necessarily to scale, and related elements may be omitted in order to emphasize and clearly illustrate the technical features of the utility model. In addition, related elements or components may have different settings as known in the art. In addition, in the drawings, the same reference numerals represent the same or similar components in each of the drawings. By describing its example embodiments in detail with reference to the drawings, the above and other features and advantages of the utility model will become more apparent.

[0041] in:

[0042] Figure 1 Shown is a schematic structural diagram of a treatment reaction device according to an embodiment of the utility model;

[0043] Figure 2 Shown is a structural schematic diagram of a processing reaction device in another embodiment of the utility model.

[0044] The reference numerals are described as follows:

[0045] 1. Reactor; 2. Anti-blocking stirring structure; 3. Guide structure; 4. Rotating shaft; 5. Rotating driving source; 6. Material guiding structure; 7. Insulation layer; 8. Sensor; 9. Pressure maintaining structure;

[0046] 101, feed inlet; 102, discharge outlet; 103, steam inlet; 104, steam outlet;

[0047] 11. kettle body; 12. kettle cover; 13. kettle bottom; 14. support rod;

[0048] 20. Accommodating chamber; 21. First stirring rod; 22. Second stirring rod; 23. Reinforcing rod;

[0049] 201, accommodating tube; 202, through hole;

[0050] 41. first connecting shaft; 42. second connecting shaft; 43. middle connecting shaft;

[0051] 91. A first buffer portion; 92. A second buffer portion. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the example embodiments of the utility model to clearly and completely describe the technical solutions in the example embodiments of the utility model. The example embodiments described herein are only for illustrative purposes and are not intended to limit the scope of protection of the utility model. Therefore, it should be understood that various modifications and changes can be made to the example embodiments without departing from the scope of protection of the utility model.

[0053] In the description of the present invention, unless otherwise clearly specified and limited, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance; the term "plurality" refers to two or more; the term "and / or" includes any and all combinations of one or more associated listed items. In particular, reference to "the / the" object or "an" object is also intended to indicate one of a possible plurality of such objects.

[0054] Unless otherwise specified or explained, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, an integral connection, an electrical connection, or a signal connection; "connection" can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0055] Further, in the description of the present invention, it should be understood that the directional words such as "upper", "lower", "inner", "outer" and the like described in the exemplary embodiments of the present invention are described at the angles shown in the accompanying drawings and should not be understood as limitations on the exemplary embodiments of the present invention. It should also be understood that, in the context, when it is mentioned that an element or feature is connected to another element (one or more) "upper", "lower", or "inner", "outer", it can not only be directly connected to the other (one or more) elements "upper", "lower", or "inner", "outer", but can also be indirectly connected to the other (one or more) elements "upper", "lower", "inner", "outer" through an intermediate element.

[0056] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted.

[0057] This embodiment provides a treatment reaction device suitable for the technical field of biomass dilute acid pretreatment. Figure 1 As shown, the treatment reaction device includes a reactor 1, wherein the reactor 1 is provided with a feed port 101 at one end along the axial direction of the reactor 1, and a discharge port 102 at the other end, wherein the feed port 101 is used to add the material to be treated, and the discharge port 102 is used to discharge the material that has completed the pretreatment reaction. Since the feed port 101 and the discharge port 102 are respectively provided at both ends of the reactor 1, the material is fed from the front end of the reactor 1, and then the material that has completed the pretreatment reaction is directly discharged from the rear end of the reactor 1, so that the material feeding, reaction and discharge processes are continuous, which saves operation time and operation difficulty, and improves production efficiency.

[0058] The material can be biomass straw, the particle size of the material is about 5 cm to 100 cm, and the length of the material is about 40 cm to 70 cm. Add the solvent required for pretreatment to the reactor 1, for example: 10 kg of 1% hydrochloric acid. The solid-liquid ratio of the material to the solvent can be about 1:2, and the treatment reaction device can also be called a biomass dilute acid pretreatment reactor.

[0059] Among them, the reactor 1 is specifically a rectangular or cylindrical structure. The shell of the reactor 1 is made of stainless steel and glass-lined. The pretreatment pressure can reach 0.1MPa~0.6MPa. The internal material of the reactor 1 can be made of high temperature, high pressure and corrosion resistant materials, such as polytetrafluoroethylene.

[0060] The axial direction of the reactor 1 is arranged parallel to the horizontal plane, that is, the processing reaction device is a horizontal structure.

[0061] In one embodiment, Figure 1 As shown, the reactor 1 further includes a material guide structure 6, which is at least partially disposed in the reactor 1, and a feed port 101 is disposed at one end of the material guide structure 6 away from the reactor 1. The material guide structure 6 plays a role in guiding the material transportation, and the material introduced from the feed port 101 is conveniently transported to the reactor 1 under the guidance of the material guide structure 6. The material guide structure 6 can be specifically a material guide pipe, which is convenient for sequentially adding the material into the reactor 1. A control valve can be provided on the material guide pipe to control the feeding speed of the material.

[0062] The existing processing reaction device is provided with an anti-blocking stirring structure 2 in the reactor 1, and the anti-blocking stirring structure 2 is used to stir the materials so that the materials can fully react in the reactor 1. However, during the high-speed rotation of the anti-blocking stirring structure 2 in the reactor 1, part of the materials may be squeezed between the anti-blocking stirring structure 2 and the inner wall of the reactor 1, causing the anti-blocking stirring structure 2 to be stuck and unable to rotate.

[0063] To solve this problem, Figure 1 As shown, the processing reaction device provided in this embodiment includes an anti-blocking stirring structure 2, which is arranged in the reactor 1 and can rotate relative to the reactor 1. A accommodating chamber 20 is arranged in the anti-blocking stirring structure 2, and the accommodating chamber 20 is used to accommodate materials.

[0064] The processing reaction device provided in this embodiment can rotate relative to the reactor 1 by using the anti-blocking stirring structure 2 to achieve full contact and mixing of materials. The accommodating cavity 20 of the anti-blocking stirring structure 2 provides a accommodating space for the material, and the material can be confined to the inside of the accommodating cavity 20. When the anti-blocking stirring structure 2 rotates relative to the reactor 1, the material will not be blocked between the reactor 1 and the anti-blocking stirring structure 2, reducing the risk of the anti-blocking stirring structure 2 getting stuck, so as to ensure the smooth rotation of the anti-blocking stirring structure 2.

[0065] In one embodiment, Figure 1 As shown, the anti-blocking stirring structure 2 includes a containing tube 201 , the containing tube 201 is provided with a through hole 202 , the containing chamber 20 is provided in the containing tube 201 , and the containing chamber 20 is communicated with the through hole 202 .

[0066] The through hole may be a circular hole, a strip hole, etc. The through hole 202 is used to connect the accommodating chamber 20 with the inner cavity of the reactor 1, so that the steam is in full contact with the material, thereby improving the mass transfer effect and the stirring uniformity.

[0067] In one embodiment, the anti-blocking stirring structure 2 further includes a reinforcing rod 23 , which is disposed in the containing cylinder 201 to strengthen the containing cylinder 201 and increase the structural strength of the containing cylinder 201 .

[0068] The existing stirring structure is generally a spiral structure. When the material is a relatively long material such as straw, if the spiral structure stirs the material, the spiral structure will also guide the material, making it easy for the material to be entangled in the spiral structure, causing the stirring structure to become stuck.

[0069] To this end, another embodiment of the present application provides an anti-blocking stirring structure 2 including a plurality of stirring rods, the stirring rods are linear structures, and the plurality of stirring rods are interconnected to form a frame structure.

[0070] The anti-blocking stirring structure 2 provided in this embodiment has a plurality of stirring rods connected to each other to form a frame structure, which can also be referred to as a cage-shaped structure having a receiving cavity 20. Compared with the existing spiral structure, since each stirring rod is a linear structure, the material will not be fed or guided all the time, the risk of the material being entangled in the stirring rod is reduced, and the anti-blocking stirring structure 2 itself is prevented from being stuck and locked, resulting in difficulty in rotation.

[0071] The frame structure is provided with an open end, which is arranged corresponding to the feed port 101 and is connected to each other, and the material added from the feed port 101 enters the accommodating cavity 20 of the frame structure through the open end. At the same time, the frame structure is not a closed structure, that is, there may be a gap between two adjacent stirring rods, so that the material can fully contact with the air or steam in the reactor 1.

[0072] In one embodiment, Figure 2 As shown, the stirring rod includes a first stirring rod 21 and a second stirring rod 22, the first stirring rod 21 is connected to the second stirring rod 22, and the first stirring rod 21 and the second stirring rod 22 are arranged at an angle. That is, the first stirring rod 21 and the second stirring rod 22 are at least arranged crosswise, and the two stirring rods are staggered and overlapped, thereby increasing the structural stability of the anti-blocking stirring structure 2.

[0073] For example, the number of the first stirring rod 21 and the number of the second stirring rod 22 are both multiple, and multiple first stirring rods 21 and multiple second stirring rods 22 can form a relatively stable frame structure. Of course, the number of the first stirring rod 21 and the second stirring rod 22 can be the same or different, and the specific number is not limited in this embodiment and can be adjusted according to actual production needs.

[0074] Exemplarily, the angle between the first stirring rod 21 and the second stirring rod 22 may be an acute angle, a right angle, or an obtuse angle. The present embodiment does not limit the angle between the two stirring rods, and the angle may be adjusted according to actual production needs.

[0075] It can be understood that the anti-blocking stirring structure 2 includes but is not limited to a first stirring rod 21 and a second stirring rod 22 , and the anti-blocking stirring structure 2 may also include other types of stirring rods.

[0076] In one embodiment, Figure 2 As shown, one of the first stirring rod 21 and the second stirring rod 22 is arranged parallel to the axial direction of the reactor 1 , and the other is arranged perpendicular to the axial direction of the reactor 1 .

[0077] That is, the two stirring rods are arranged perpendicular to each other, and the arrangement order of the two stirring rods is not chaotic, but conforms to the setting direction of the reactor 1, and the appearance is neat and convenient for installation.

[0078] In one embodiment, the anti-blocking stirring structure 2 also includes a reinforcing structure, which is arranged on the frame structure to increase the overall structural stability of the anti-blocking stirring structure 2.

[0079] Specifically, the reinforcement structure includes a reinforcement rod 23, which is disposed between the two first stirring rods 21 to improve the stability and fixing effect between the two first stirring rods 21. The reinforcement rod 23 can be disposed at an angle with the first stirring rod 21, for example, the reinforcement rod 23 can be disposed perpendicular to the first stirring rod 21, and the reinforcement rod 23 can be specifically disposed between two adjacent first stirring rods 21, or between two first stirring rods 21 disposed opposite to each other, and of course, can also be disposed between any two first stirring rods 21.

[0080] Exemplarily, the reinforcing rod 23 can also be arranged between the two second stirring rods 22 to improve the stability and fixing effect between the two second stirring rods 22; the reinforcing rod 23 can be arranged at an angle with the second stirring rod 22, for example, the reinforcing rod 23 can be arranged perpendicular to the second stirring rod 22, the reinforcing rod 23 can be specifically arranged between two adjacent second stirring rods 22, or between two oppositely arranged second stirring rods 22, and of course, can also be arranged between any two second stirring rods 22.

[0081] Exemplarily, the reinforcing rod 23 is arranged between the first stirring rod 21 and the second stirring rod 22 to improve the stability and fixing effect between the first stirring rod 21 and the second stirring rod 22. For example, the reinforcing rod 23 and the first stirring rod 21 and the second stirring rod 22 are all inclined. The reinforcing rod 23 can also be called an angled support, that is, the first stirring rod 21, the second stirring rod 22 and the reinforcing rod 23 are in a triangular structure. The triangular structure is used to stabilize the structure and further improve the structural stability of the anti-blocking stirring structure 2.

[0082] If the reactor 1 is a vertical structure, the material introduced from the feed port 101 can fall into the containing chamber 20 of the anti-blocking stirring structure 2 under the action of its own gravity. If the reactor 1 is a horizontal structure, the material added from the feed port 101 is difficult to directly enter the containing chamber 20 of the anti-blocking stirring structure 2.

[0083] To solve this problem, Figure 1-Figure 2 As shown, the treatment reaction device also includes a guide structure 3, which is arranged on the anti-blocking stirring structure 2 and is used to guide the material into the reactor 1 along a direction away from the feed inlet 101.

[0084] Even if the reactor 1 is a horizontal structure, the guide structure 3 can be used to guide the material from the feed port 101 to the accommodating chamber 20 of the reactor 1, thereby improving the mixing uniformity of the material in the reactor 1. At the same time, by setting the guide structure 3 on the anti-blocking stirring structure 2, when the anti-blocking stirring structure 2 rotates, the guide structure 3 can move with the rotation of the anti-blocking stirring structure 2, thereby realizing the process of guiding the material to feed, without adding an additional driving device to the guide structure 3, which is easy to use and reduces production costs.

[0085] Exemplarily, the guide structure 3 includes a guide plate, and the guide plate is a spiral structure.

[0086] Since the guide blade is arranged on the anti-blocking stirring structure 2, when the guide blade rotates with the anti-blocking stirring structure 2, the spiral groove of the guide blade guides the material, so that the material moves along the axial direction of the reactor 1, thereby improving the guiding and conveying effect of the material.

[0087] In one embodiment, there are multiple guide blades, and the multiple guide blades are arranged in parallel and at intervals along the axial direction of the reactor 1 , so that the material can be continuously fed and transported along the axial direction of the reactor 1 .

[0088] In one embodiment, there are multiple guide blades, which are arranged in parallel and spaced apart along the circumferential direction of the reactor 1, that is, the guide blades are equivalent to the extended parts of the inner wall of the anti-blocking stirring structure 2, which increases the contact area with the material and improves the uniformity of stirring.

[0089] It can be understood that multiple guide plates can be arranged along the axial and circumferential directions of the reactor 1 at the same time. For example, each circle of the reactor 1 has multiple guide plates, and the guide plates of each circle are arranged along the axial direction of the reactor 1; alternatively, multiple guide plates are arranged along the inner wall of the accommodating chamber 20 along a spiral structure.

[0090] If the multiple guide plates of the guide structure 3 are continuous spiral structures, the materials are easily entangled on the guide plates when the guide structure 3 rotates with the anti-blocking stirring structure 2, thereby causing the anti-blocking stirring structure 2 to become stuck, affecting the reliability of use.

[0091] To solve this problem, Figure 1-Figure 2 As shown, the projections of the plurality of guide plates relative to the reference plane do not overlap; wherein the reference plane is arranged parallel to the axial direction of the reactor 1; and / or, the reference plane is arranged perpendicular to the axial direction of the reactor 1.

[0092] When the reference plane is perpendicular to the axial direction of the reactor 1, the reference plane is the plane where the radial cross section of the reactor 1 is located, and the projections of the multiple guide plates relative to the reference plane do not overlap, that is, a first gap is provided between two adjacent guide plates along the radial direction, and the material can directly enter the bottom of the accommodating chamber 20 through the first gap.

[0093] When the reference plane is parallel to the axial direction of the reactor 1, the reference plane is the plane where the axial cross section of the reactor 1 is located, and the projections of the multiple guide plates relative to the reference plane do not overlap, that is, a second gap is provided between two adjacent guide plates along the axial direction, so that the multiple guide plates arranged along the axial direction of the reactor 1 are staggered, which facilitates the guidance of the material to the side of the accommodating chamber 20 away from the feed port 101.

[0094] In this way, there is a certain offset space between any two guide plates along the axial direction and radial direction of the reactor 1. The guide structure 3 is actually a discontinuous structure, which avoids the situation where the material needs to bypass the guide plates, resulting in a too long material conveying path, thereby reducing the risk of material accumulation or even blockage between the two guide plates.

[0095] In one embodiment, Figure 1-Figure 2 As shown, the reactor 1 includes a reactor body 11 and a reactor cover 12. The reactor cover 12 is arranged at one end of the reactor body 11 along the axial direction of the reactor body 11. The reactor cover 12 is detachably connected to the reactor body 11. The reactor body 11 and the reactor cover 12 can be connected by bolts, clamping, etc., which is convenient for installation and disassembly of the reactor cover 12 and the reactor body 11, and convenient for subsequent inspection and maintenance.

[0096] like Figure 1 As shown, the reactor 1 further includes a reactor bottom 13, and a reactor cover 12 and the reactor bottom 13 are respectively arranged at both ends of the reactor body 11 along the axial direction of the reactor body 11, wherein the reactor bottom 13 and the reactor body 11 can be an integral structure, or can be fixed by welding or the like, or can be connected by bolts, clamping or other detachable methods. In addition, the reactor cover 12 and the reactor bottom 13 can be a flat plate structure, or a circular arc structure.

[0097] Among them, the feed port 101 is set on the kettle cover 12, and the discharge port 102 is set on the kettle bottom 13, so that the material is fed from the front end of the kettle body 11, and then the material that completes the pretreatment reaction is directly discharged from the rear end of the kettle body 11, so that the material feeding, reaction and discharge processes are continuous, and during use, there is no need to frequently open the kettle cover 12, saving operation time and operation difficulty, and improving production efficiency.

[0098] As shown in the figure, a support rod 14 is arranged inside at least one end of the reactor 1 along the axial direction of the reactor 1, that is, the support rod 14 is arranged on at least one side of the reactor cover 12 and the reactor bottom 13 facing each other, and the support rod 14 plays a supporting role to increase the overall strength of the reactor 1.

[0099] In one embodiment, Figure 1As shown, the processing reaction device also includes a rotating shaft 4, which is inserted into the anti-blocking stirring structure 2 and the support rod 14. The support rod 14 provides a support position for the rotating shaft 4. There is an interference fit between the rotating shaft 4 and the anti-blocking stirring structure 2. The rotating shaft 4 drives the anti-blocking stirring structure 2 to rotate. There is a clearance fit between the rotating shaft 4 and the support rod 14. The support rod 14 does not affect the rotation of the rotating shaft 4, so that there is a gap between the anti-blocking stirring structure 2 and the inner wall of the reactor 1, so as to avoid the anti-blocking stirring structure 2 drooping and contacting the inner wall of the reactor 1 to cause bottom dragging, thereby ensuring the smooth rotation of the anti-blocking stirring structure 2.

[0100] like Figure 1 As shown, the processing reaction device also includes a rotation driving source 5, which is arranged outside the reactor 1. The rotation driving source 5 can specifically be a rotating motor. The output end of the rotation driving source 5 is directly connected to the rotating shaft 4, or the output end of the rotation driving source 5 is connected to the rotating shaft 4 through a reducer, so that the rotating shaft 4 drives the anti-blocking stirring structure 2 to rotate.

[0101] Under the control of the rotary drive source 5, the entire anti-blocking stirring structure 2 rotates slowly, so that the material is fully stirred in the accommodating chamber 20, and the uniformity of stirring and mixing is improved. At the same time, it can also prevent the local temperature from being too high, resulting in uneven heating.

[0102] If the rotating shaft 4 is an integral structure, when the kettle cover 12 is removed from the kettle body 11, the rotating shaft 4 needs to be pulled out from the kettle cover 12, which makes the operation process complicated and inconvenient to use.

[0103] To solve this problem, Figure 1 As shown, the rotating shaft 4 includes a first connecting shaft 41 and a second connecting shaft 42. The first connecting shaft 41 passes through the reactor 1 and is connected to the output end of the rotating driving source 5. The second connecting shaft 42 is arranged in the reactor 1 and is connected to the anti-blocking stirring structure 2. The first connecting shaft 41 and the second connecting shaft 42 are connected at one end close to each other.

[0104] In this way, the rotating shaft 4 is a split structure. When the kettle cover 12 and the kettle body 11 need to be disassembled, the second connecting shaft 42 can be continuously placed in the reactor 1 to keep the position unchanged, and the second connecting shaft 42 is disconnected from the first connecting shaft 41. Then the rotating drive source 5, the first connecting shaft 41 and the kettle cover 12 can be separated from the kettle body 11 as a whole, and the first connecting shaft 41 does not need to be separated from the kettle cover 12 again, which simplifies the operation steps; when the kettle cover 12 and the kettle body 11 need to be installed, the rotating drive source 5, the first connecting shaft 41 and the kettle cover 12 can be installed to the kettle body 11 as a whole, which can be achieved by only connecting the first connecting shaft 41 and the second connecting shaft 42 to each other.

[0105] The rotating shaft 4 also includes an intermediate connecting shaft 43, which is disposed between the first connecting shaft 41 and the second connecting shaft 42, and the intermediate connecting shaft 43 is detachably connected to the first connecting shaft 41 and the second connecting shaft 42. For example, the connecting piece can be a coupling or a double-ended sleeve. The intermediate connecting shaft 43 is used to facilitate the installation and removal of the first connecting shaft 41 and the second connecting shaft 42, and the intermediate connecting shaft 43 also has a double-ended connection function, which saves the number of connecting pieces.

[0106] like Figure 1 As shown, the reactor 1 is provided with a steam inlet 103 and a steam outlet 104 .

[0107] The steam inlet 103 is used to introduce steam, and the steam outlet 104 is used to discharge steam. After the materials are evenly mixed, they are heated by steam so that the temperature and pressure in the reactor 1 reach the set values. For example, the temperature in the reactor 1 is about 150°C, and the reaction time is about 1 hour, so as to increase the reaction speed and effect of the materials. The steam discharged through the steam outlet 104 can be used for heat utilization in other links, making full use of thermal energy, reducing energy consumption, and reducing overall costs. After the reaction is completed, the circulating water is used to quickly cool the materials, and the materials are discharged through the discharge port 102 after the reaction is completed.

[0108] When the material reacts in the reactor 1, the accommodating chamber 20 needs to reach a certain temperature and be maintained within a certain temperature range as much as possible. For this reason, the processing reaction device also includes an insulation layer 7, which is arranged on at least one of the inner wall and the outer wall of the reactor 1. The insulation layer 7 is made of insulation material. The insulation layer 7 has an insulation effect on the reactor 1 and reduces heat loss.

[0109] When the material reacts in the reactor 1, the accommodating chamber 20 needs to reach a certain pressure and try to maintain it within a certain pressure range. Figure 1 As shown, the processing reaction device further includes a pressure-maintaining structure 9, which is disposed in the reactor 1 and is used to maintain the pressure of the accommodating chamber 20 to ensure that the pressure of the accommodating chamber 20 remains constant, thereby improving the reaction effect of the material.

[0110] Since the feed port 101 is arranged on the kettle cover 12 of the reactor 1, the feed port 101 is connected to the external atmosphere, the pressure in the accommodating chamber 20 is relatively large, the pressure of the external atmosphere is relatively small, and the pressure difference between the two is relatively large, which will exert a force on the material. After the material is added to the feed port 101, the direction of the force is opposite to the feeding direction of the material, resulting in an unsmooth feeding process of the material.

[0111] In order to solve this problem, the pressure maintaining structure 9 includes a first buffer portion 91, which is arranged in the reactor 1 and between the feed port 101 and the anti-blocking stirring structure 2, so that the pressure in the feed port 101, the first buffer portion 91 and the accommodating chamber 20 gradually increases.

[0112] By providing the first buffer portion 91 between the feed port 101 and the anti-blocking stirring structure 2, the first buffer portion 91 realizes the pressure buffering function of the feed port 101 and the accommodating chamber 20, and the pressure in the feed port 101, the first buffer portion 91 and the accommodating chamber 20 gradually increases, achieving the effect of continuous transition and step-by-step increase, and the pressure difference between the feed port 101 and the first buffer portion 91 is not much different, which will not cause significant interference to the feeding of the material, thereby ensuring the smoothness and efficiency of the material feeding. The pressure difference between the first buffer portion 91 and the accommodating chamber 20 is not much different, which will not cause a significant loss of pressure in the accommodating chamber 20.

[0113] The processing reaction device also includes a second buffer portion 92, which is arranged in the reactor 1 and between the anti-blocking stirring structure 2 and the discharge port 102, so that the pressure in the accommodating chamber 20, the second buffer portion 92 and the discharge port 102 is gradually reduced.

[0114] By providing the second buffer portion 92 between the discharge port 102 and the anti-blocking stirring structure 2, the second buffer portion 92 realizes the pressure buffering function in the discharge port 102 and the accommodating chamber 20, and the pressure in the accommodating chamber 20, the second buffer portion 92 and the discharge port 102 is gradually reduced, achieving the effect of continuous transition and gradual reduction, thereby ensuring the smooth discharge of materials. The pressure difference between the second buffer portion 92 and the accommodating chamber 20 is not much, which will not cause a large loss of pressure in the accommodating chamber 20, so that the accommodating chamber 20 can achieve a continuous pressure maintenance effect, thereby ensuring the reliability of the material reaction.

[0115] In another embodiment, the processing reaction device also includes a screw and a driving source, the screw is inserted into the feed port and / or the discharge port, the driving source is arranged outside the reactor 1, the output end of the driving source is connected to the screw, and the driving source can drive the screw to rotate.

[0116] After the material enters the feed port, the screw rotates forward under the action of the driving source to force the material from the feed port into the reactor 1 for material stirring and reaction. When it is necessary to discharge, the driving source drives the screw to rotate in the opposite direction, so that the material in the accommodating cavity is reversely extruded to the discharge port and discharged from the discharge port.

[0117] This method solves the problem that the pressure in the inner cavity of the reactor 1 is too high to feed, and the functions of feeding and discharging can be easily realized by controlling the forward and reverse rotation of the screw.

[0118] In another embodiment, the screw is a twin-screw structure.

[0119] Specifically, the output end of the driving source is connected to the twin-screw structure through two output shafts, so that the screws of the twin-screw structure can rotate synchronously, further improving the efficiency of feeding and discharging.

[0120] In one embodiment, Figure 1 The processing reaction device further includes a sensor 8, which is at least partially disposed in the reactor 1 and is used to detect at least one of the temperature, humidity and pressure in the reactor 1. The sensor 8 is used to realize real-time monitoring of various materials in the reactor 1 to ensure the reaction effect of the materials.

[0121] After pretreatment by the treatment reaction device, the hemicellulose removal rate of the material is about 60% to 80%, and the cellulose retention rate is about 85%. After the pretreatment, the biomass is enzymatically hydrolyzed, and the enzymatic hydrolysis rate can reach 80%.

[0122] Exemplarily, a mixed system (biomass straw and pretreatment liquid) with the same solid-liquid ratio, wherein the biomass straws have the same length, is placed in a traditional vertical ribbon stirring reactor for pretreatment. The biomass straws can cause the stirring structure to lock, causing the equipment to fail to operate normally. A mixed system with the same solid-liquid ratio, wherein the biomass straws have the same length, is placed in the containing chamber 20 of the anti-blocking stirring structure 2 for pretreatment. The hemicellulose removal rate of the material is 20% to 40%, and the cellulose retention rate is about 90%. The pretreated biomass is enzymolyzed, and the enzymolysis rate is about 40% to 50%.

[0123] The processing reaction device provided in this embodiment can adjust the feeding speed of the material guiding structure 6, the steam temperature, and the rotation speed of the anti-clogging stirring structure 2, that is, according to different pretreatment process conditions of the material, the steam temperature, the feeding speed, the material mixing speed, or the feeding speed of the material guiding structure 6 is changed, thereby adjusting the retention time of the material in the reactor 1, or changing the temperature and pressure of the reactor 1 to achieve a good pretreatment effect.

[0124] The treatment reaction device provided in this embodiment has the advantages of good material mixing performance, uniform heating, and not easy to be blocked during the high temperature and high pressure pretreatment process.

[0125] It should be noted that the embodiments of the present invention are shown in the drawings and described in this specification is only an example of the principle of the present invention. It should be clearly understood by those skilled in the art that the principle of the present invention is not limited to any details or any components of the device shown in the drawings or described in the specification.

[0126] It should be understood that the utility model does not limit its application to the detailed structure and arrangement of the components proposed in this specification. The utility model can have other embodiments and can be implemented and executed in a variety of ways. The aforementioned deformation forms and modified forms fall within the scope of the utility model. It should be understood that the utility model disclosed and defined in this specification extends to all alternative combinations of two or more individual features mentioned or evident in the text and / or the drawings. All these different combinations constitute multiple alternative aspects of the utility model. The embodiments described in this specification illustrate the best known methods for implementing the utility model and will enable those skilled in the art to utilize the utility model.

[0127] Those skilled in the art will readily come up with other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. The present invention is intended to cover any variation, use, or adaptation of the present invention, which follows the general principles of the present invention and includes common knowledge or customary technical means in the art that are not disclosed in the present invention. The specification and example embodiments are to be considered as exemplary only, and the true scope and spirit of the present invention are indicated by the appended claims.

[0128] It should be understood that the present invention is not limited to the precise structure described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of protection of the present invention is limited only by the appended claims.

Claims

1. A treatment reaction device, characterized in that: include: A reactor, wherein one end of the reactor is provided with a feed inlet and the other end is provided with a discharge outlet along the axial direction of the reactor; An anti-blocking stirring structure is disposed in the reactor and is rotatable relative to the reactor; Wherein, a containing cavity is arranged in the anti-blocking stirring structure, and the containing cavity is used for containing materials.

2. The treatment reaction device according to claim 1, characterized in that: The reactor is provided with a steam inlet and a steam outlet; The processing reaction device further comprises a pressure-maintaining structure, which is arranged in the reaction kettle and is used for maintaining the pressure of the containing chamber.

3. The treatment reaction device according to claim 2, characterized in that: The pressure-maintaining structure includes a first buffer portion, which is arranged in the reactor and between the feed port and the anti-blocking stirring structure, so that the pressure in the feed port, the first buffer portion and the accommodating chamber gradually increases.

4. The treatment reaction device according to claim 2, characterized in that: The processing reaction device also includes a second buffer portion, which is arranged in the reactor and between the anti-blocking stirring structure and the discharge port, so that the pressure in the accommodating chamber, the second buffer portion and the discharge port is gradually reduced.

5. The treatment reaction device according to claim 1, characterized in that: Also includes: A screw rod, wherein the screw rod is disposed through the feed port and / or the discharge port; A driving source is arranged outside the reactor, an output end of the driving source is connected to the screw, and the driving source can drive the screw to rotate; And / or, the screw is a twin-screw structure.

6. The treatment reaction device according to claim 1, characterized in that: The anti-blocking stirring structure comprises: The accommodating tube is provided with a through hole, the accommodating cavity is provided in the accommodating tube, and the accommodating cavity is communicated with the through hole.

7. The treatment reaction device according to claim 6, characterized in that: The anti-blocking stirring structure also includes a reinforcing rod, and the reinforcing rod is arranged in the containing cylinder.

8. The treatment reaction device according to claim 1, characterized in that: It also includes a guide structure, which is arranged on the anti-blocking stirring structure and is used to guide the material into the reactor in a direction away from the feed port; and / or, the guide structure includes a guide plate, and the guide plate is a spiral structure; and / or, the number of the guide plates is multiple, and the multiple guide plates are arranged in parallel and spaced apart along the axial direction of the reactor; And / or, there are multiple guide plates, and the multiple guide plates are arranged in parallel and spaced apart along the circumferential direction of the reactor; and / or, the projections of the multiple guide plates relative to the reference plane do not overlap; Wherein, the reference plane is arranged perpendicularly to the axial direction of the reactor; and / or, the reference plane is arranged parallel to the axial direction of the reactor.

9. The treatment reaction device according to claim 1, characterized in that: Also includes: A rotating shaft, a support rod is provided inside at least one end of the reactor along the axial direction of the reactor, and the rotating shaft passes through the anti-blocking stirring structure and the support rod, so that there is a gap between the anti-blocking stirring structure and the inner wall of the reactor; A rotary drive source is arranged outside the reactor, and an output end of the rotary drive source is connected to the rotary shaft, so that the rotary shaft drives the anti-blocking stirring structure to rotate; and / or, the reactor comprises a reactor body, a reactor cover and a reactor bottom, the reactor cover and the reactor bottom are respectively arranged at two ends of the reactor body along the axial direction of the reactor body, the reactor cover is detachably connected to the reactor body, the feed port is arranged on the reactor cover, and the discharge port is arranged on the reactor bottom; And / or, the rotating shaft includes a first connecting shaft and a second connecting shaft, the first connecting shaft is passed through the reactor and connected to the output end of the rotating driving source, the second connecting shaft is arranged in the reactor and connected to the anti-blocking stirring structure, and the first connecting shaft and the second connecting shaft are connected at one end close to each other; And / or, the rotating shaft further includes an intermediate connecting shaft, the intermediate connecting shaft is disposed between the first connecting shaft and the second connecting shaft, and the intermediate connecting shaft is detachably connected to the first connecting shaft and the second connecting shaft, respectively.

10. The treatment reaction device according to any one of claims 1 to 9, characterized in that: The reactor further comprises a material guiding structure, which is at least partially arranged in the reactor, and the feed port is arranged at one end of the material guiding structure away from the reactor; and / or, further comprises a thermal insulation layer, which is arranged on at least one of the inner wall and the outer wall of the reactor; and / or, further comprises a sensor, which is at least partially arranged in the reactor and is used to detect at least one of the temperature, humidity and pressure in the reactor; and / or, the axial direction of the reactor is arranged parallel to the horizontal plane.

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