Mixer

Abstract

The utility model provides a mixer and relates to the technical field of pretreatment. The mixer comprises a reaction kettle and a stirring structure, wherein the reaction kettle is provided with a feeding hole; the stirring structure is arranged in the reaction kettle and can rotate relative to the reaction kettle; wherein the stirring structure is provided with a jet orifice, the jet orifice is arranged towards the inner wall of the reaction kettle, and the jet orifice is used for jetting a medium. The injection orifice of the stirring structure can inject a medium to the inner wall of the reaction kettle, so that materials cannot be blocked between the reaction kettle and the stirring structure, the risk of clamping stagnation of the stirring structure is avoided, and the rotation smoothness of the stirring structure is ensured.

Description

[0001] This application claims the priority of the prior application titled "A Mixer" with the patent application number 202420939294.3, which was filed with the China National Intellectual Property Administration on April 30, 2024. Technical Field

[0002] The present utility model generally relates to the technical field of pretreatment, and more specifically, to a mixer. Background Art

[0003] The mixing in physical and chemical processes involving compressible solid materials is extremely important. Especially in high-solid-content material systems, the quality of the mixing effect is related to key parameters such as reaction rate, product yield, and stirring energy consumption, and thus the economic feasibility of the production process.

[0004] For compressible solid materials, such as biomass straw, there are often liquids and gases involved. When mixing such material systems, the prior art uses equipment such as vertical spiral ribbon stirring reactors to stir the materials to ensure the sufficiency and uniformity of the material mixing. However, the compressible solid materials inevitably enter the gap between the stirring structure and the reactor wall. With the stirring of the stirring structure, the materials will be pressed tighter and tighter, causing the stirring structure to become blocked and jammed, resulting in the abnormal operation of the reactor. Summary of the Utility Model

[0005] The mixer provided by the present utility model can reduce the situation of jamming and blockage.

[0006] According to the first aspect of the present utility model, a mixer is provided, comprising:

[0007] A reaction kettle, which is provided with a feed inlet;

[0008] A stirring structure, which is arranged in the reaction kettle and can rotate relative to the reaction kettle;

[0009] Wherein, the stirring structure is provided with a spray port, the spray port is arranged towards the inner wall of the reaction kettle, and the spray port is used for spraying a medium.

[0010] In some embodiments, a cavity is arranged in the stirring structure, the cavity is used for accommodating the medium, and the cavity is communicated with the spray port.

[0011] In some embodiments, along the radial direction of the reaction kettle, the spray port is arranged on the end face of the stirring structure on the side facing the inner wall of the reaction kettle.

[0012] In some embodiments, the number of the spray ports is multiple, and the multiple spray ports are arranged at intervals on the end face of the stirring structure on the side facing the inner wall of the reaction kettle.

[0013] In some of these embodiments, the stirring structure includes:

[0014] A hub;

[0015] A plurality of stirring blades, arranged circumferentially along the hub and connected to the hub;

[0016] Wherein, in the radial direction of the reaction kettle, the injection port is arranged on the end face of the stirring blade on the side facing the inner wall of the reaction kettle.

[0017] In some of these embodiments, the stirring structure includes:

[0018] A hub;

[0019] A disc, mounted on the hub and connected to the hub;

[0020] A plurality of stirring blades, arranged circumferentially along the disc and connected to the disc;

[0021] Wherein, in the radial direction of the reaction kettle, the injection port is arranged on the end face of the stirring blade on the side facing the inner wall of the reaction kettle.

[0022] In some of these embodiments, the stirring blade is at least one of a curved blade structure, a straight blade structure, and a folded blade structure.

[0023] In some of these embodiments, the stirring structure includes:

[0024] A stirring frame, the stirring frame being a frame structure;

[0025] Wherein, the injection port is arranged on the end face of the stirring frame on the side facing the inner wall of the reaction kettle;

[0026] Wherein, the stirring frame is at least one of a closed structure and a semi-closed structure.

[0027] In some of these embodiments, the stirring structure includes:

[0028] A spiral blade, the spiral blade being distributed in a spiral structure along the axial direction of the reaction kettle;

[0029] Wherein, the injection port is arranged on the end face of the spiral blade on the side facing the inner wall of the reaction kettle.

[0030] In some of these embodiments, in the radial direction of the reaction kettle, the distance between the end face of the side of the spiral blade facing the inner wall of the reaction kettle and the inner wall of the reaction kettle is the same, or the distance between the end face of the side of the spiral blade facing the inner wall of the reaction kettle and the inner wall of the reaction kettle gradually increases or decreases.

[0031] In some of these embodiments, the stirring structure includes:

[0032] A hub;

[0033] A plurality of propulsion blades, arranged circumferentially along the hub and connected to the hub, at least some of the plurality of propulsion blades being arranged at an angle;

[0034] Wherein, the injection port is arranged on the end face of the propulsion blade on the side facing the inner wall of the reaction kettle.

[0035] In some of these embodiments, the stirring structure includes a plowshare, the plowshare having a pointed end and a tail end, the pointed end and the tail end being arranged in the radial direction of the reaction kettle, the pointed end being arranged on the side of the plowshare close to the inner wall of the reaction kettle;

[0036] Wherein, the injection port is arranged at the pointed end.

[0037] In some of these embodiments, the plowshare includes a first side plate, a second side plate and a connecting plate, the first side plate and the second side plate being arranged at an angle, a first end of the first side plate being connected to a first end of the second side plate to form the pointed end, and a second end of the first side plate and a second end of the second side plate being connected by the connecting plate to form the tail end;

[0038] Wherein, the injection port is arranged at the connection position between the first side plate and the second side plate.

[0039] In some of these embodiments, the injection port is arranged at the first side plate close to the pointed end;

[0040] And / or, the injection port is arranged at the second side plate close to the pointed end.

[0041] In some of these embodiments, the stirring structure further includes a connecting rod, along the radial direction of the reaction kettle, the connecting rod being connected to an end of the plowshare far from the inner wall of the reaction kettle;

[0042] Wherein, a communication cavity is arranged in the connecting rod, and the communication cavity is communicated with the injection port.

[0043] In some of these embodiments, the mixer further includes:

[0044] A rotating shaft, arranged in the reaction kettle, the rotating shaft passing through the stirring structure;

[0045] A rotating drive source, arranged outside the reaction kettle, an output end of the rotating drive source being connected to the rotating shaft to drive the rotating shaft to drive the stirring structure to rotate;

[0046] Wherein, a conveying cavity is arranged inside the rotating shaft, and the conveying cavity is communicated with the injection port.

[0047] In some embodiments, the mixer further includes:

[0048] A conveying pipeline, which is arranged outside the reaction kettle. One end of the conveying pipeline is provided with a medium inlet, and the other end is connected to the rotating shaft and communicated with the conveying cavity.

[0049] In some embodiments, a control valve is arranged on the conveying pipeline;

[0050] And / or, the reaction kettle is provided with a discharge port, and the feed port and the discharge port are arranged at two ends of the reaction kettle along the axial direction of the reaction kettle.

[0051] In some embodiments, the reaction kettle is provided with a steam inlet and a steam outlet;

[0052] And / or, the reaction kettle further includes a sensor, at least part of which is arranged inside the reaction kettle and is used for detecting at least one of the temperature, humidity and pressure inside the reaction kettle;

[0053] And / or, the axial direction of the reaction kettle is arranged parallel to the horizontal plane.

[0054] One embodiment of the present utility model has the following advantages or beneficial effects:

[0055] The mixer provided in this embodiment utilizes that the stirring structure can rotate relative to the reaction kettle to achieve sufficient contact and mixing of materials. The injection port of the stirring structure can inject the medium towards the inner wall of the reaction kettle. When the medium is air, the air can disperse the materials located between the inner wall of the reaction kettle and the stirring structure; when the medium is ordinary water, the ordinary water can wash the materials located between the inner wall of the reaction kettle and the stirring structure; when the medium is the solvent required for pretreatment, the solvent can consume the materials located between the inner wall of the reaction kettle and the stirring structure, so that the materials will not be blocked between the reaction kettle and the stirring structure, avoiding the risk of jamming of the stirring structure, and ensuring the smooth rotation of the stirring structure. Description of the Drawings

[0056] In order to better understand the present 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 to emphasize and clearly illustrate the technical features of the present utility model. Additionally, related elements or components may have different arrangements as known in the art. Furthermore, in the drawings, the same reference numerals denote the same or similar components in each drawing. By describing its exemplary embodiments in detail with reference to the drawings, the above and other features and advantages of the present utility model will become more apparent.

[0057] Wherein:

[0058] Figure 1 The figure shows a schematic structural diagram of the mixer provided in the first embodiment of the present utility model;

[0059] Figure 2 The figure shows a schematic structural diagram of the stirring structure in the mixer provided in the first embodiment of the present utility model;

[0060] Figure 3 The figure shows a schematic structural diagram of the stirring structure in the mixer provided in the second embodiment of the present utility model;

[0061] Figure 4 The figure shows a schematic structural diagram of the stirring structure in the mixer provided in the third embodiment of the present utility model Figure 1 ;

[0062] Figure 5 The figure shows a schematic structural diagram of the stirring structure in the mixer provided in the third embodiment of the present utility model Figure 2 ;

[0063] Figure 6 The figure shows a schematic structural diagram of the stirring structure in the mixer provided in the fourth embodiment of the present utility model;

[0064] Figure 7 The figure shows a schematic structural diagram of the stirring structure in the mixer provided in the fourth embodiment of the present utility model Figure 2 ;

[0065] Figure 8 The figure shows a schematic structural diagram of the stirring structure in the mixer provided in the fourth embodiment of the present utility model Figure 3 ;

[0066] Figure 9 The figure shows a schematic structural diagram of the stirring structure in the mixer provided in the fifth embodiment of the present utility model Figure 1 ;

[0067] Figure 10 The figure shows a schematic structural diagram of the stirring structure in the mixer provided in the fifth embodiment of the present utility model Figure 2 ;

[0068] Figure 11 The figure shows a schematic structural diagram of the stirring structure in the mixer provided in the sixth embodiment of the present utility model Figure 1 ;

[0069] Figure 12 The figure shows a schematic structural diagram of the stirring structure in the mixer provided in the sixth embodiment of the present utility model Figure 2 ;

[0070] Figure 13The structural schematic diagram of the stirring structure in the mixer provided in the sixth embodiment of the present utility model is shown. Figure 3 ;

[0071] Figure 14 The structural schematic diagram of the stirring structure in the mixer provided in the seventh embodiment of the present utility model is shown.

[0072] Among them, the descriptions of the reference numerals are as follows:

[0073] 1, reaction kettle; 2, stirring structure; 3, rotating shaft; 4, rotating drive source; 5, heat preservation layer; 6, sensor; 7, conveying pipeline; 100, base;

[0074] 101, feed inlet; 102, discharge outlet; 103, steam inlet; 104, steam outlet;

[0075] 201, injection port; 202, cavity;

[0076] 21, plowshare; 2101, tip end; 2102, tail end; 211, first side plate; 212, second side plate; 213, connecting plate;

[0077] 22, connecting rod; 221, communicating cavity;

[0078] 231, hub; 232, stirring blade; 241, hub; 242, disc; 243, stirring blade; 25, stirring frame; 26, spiral blade; 271, hub; 272, propulsion blade; 28, mounting rod;

[0079] 31, conveying cavity;

[0080] 71, medium inlet; 72, control valve. Detailed implementation manners

[0081] Next, the technical solutions in the exemplary embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the exemplary embodiments of the present utility model. The exemplary embodiments described herein are only for the purpose of illustration and are not intended to limit the protection scope of the present utility model. Therefore, it should be understood that various modifications and changes can be made to the exemplary embodiments without departing from the protection scope of the present utility model.

[0082] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance; the term "plurality" means two or more; the term "and / or" includes any combination and all combinations of one or more of the associated listed items. In particular, referring to "the / this" object or "one" object also aims to represent one of the possible multiple such objects.

[0083] Unless otherwise specified or stated, terms such as "connection", "fixation", etc. shall 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 the present invention can be understood according to specific circumstances.

[0084] Furthermore, in the description of the present invention, it should be understood that the orientation terms such as "upper", "lower", "inner", "outer", etc. described in the exemplary embodiments of the present invention are described from the angles shown in the drawings and should not be construed as limiting the exemplary embodiments of the present invention. It should also be understood that in the context, when an element or feature is referred to as being "on", "under", or "inside", "outside" another element (one or more), it can not only be directly connected to another element (one or more) "on", "under", or "inside", "outside", but also be indirectly connected to another element (one or more) "on", "under", or "inside", "outside" through an intermediate element.

[0085] Now, the exemplary embodiments will be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be implemented in various 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 thorough and complete, and the concept of the exemplary embodiments will be fully conveyed to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed descriptions will be omitted.

[0086] Example 1

[0087] This embodiment provides a mixer, which is applicable to the technical field of biomass dilute acid pretreatment. As Figure 1 shown, the mixer includes a reaction kettle 1, and the reaction kettle 1 is provided with a feed inlet 101 for introducing the materials to be reacted. Among them, the materials can specifically be biomass straws and the solvents required for pretreatment (for example: 10 kg of 1% hydrochloric acid). The particle size of the materials is about 5 cm to 100 cm, the length of the materials is about 40 cm to 70 cm, and the solid-liquid ratio can be about 1:2. This mixer can also be called a biomass dilute acid pretreatment reactor.

[0088] Among them, the reaction kettle 1 is specifically a structure similar to a cuboid or a cylinder. The outer shell of the reaction kettle 1 is made of stainless steel with glass lining. The pretreatment pressure can reach 0.1 MPa to 0.6 MPa. The internal material of the reaction kettle 1 can be made of materials resistant to high temperature, high pressure, and corrosion, such as polytetrafluoroethylene. The axial direction of the reaction kettle 1 is parallel to the horizontal plane and placed on the base 100, that is, the mixer is in a horizontal structure.

[0089] Among them, the feed inlet 101 can be arranged at at least one end of the reaction kettle 1 along the axial direction of the reaction kettle 1. For example, the front end and / or the rear end of the reaction kettle 1; the feed inlet 101 and the discharge outlet 102 are arranged at both ends of the reaction kettle 1 along the axial direction of the reaction kettle 1. The reaction kettle 1 feeds at one end along its axial direction and discharges at the other end, and the continuity of the material reaction is good. Of course, in some other embodiments, the feed inlet 101 can also be arranged at the middle position of the reaction kettle 1.

[0090] A stirring structure is arranged in the reaction kettle 1 of the existing mixer. The stirring structure is used to stir the material so that the material can fully react in the reaction kettle. However, during the high-speed rotation of the stirring structure in the reaction kettle, some materials may be squeezed between the stirring structure 2 and the inner wall of the reaction kettle, resulting in the stirring structure 2 being unable to rotate due to jamming.

[0091] To solve this problem, as Figure 1 shown, the mixer provided in this embodiment includes a stirring structure 2. The stirring structure 2 is arranged in the reaction kettle 1 and can rotate relative to the reaction kettle 1. The stirring structure 2 is provided with a spray port 201, and the spray port 201 is arranged towards the inner wall of the reaction kettle 1. The spray port 201 is used to spray the medium. Among them, the medium can be air, ordinary water or the solvent required for pretreatment, etc.

[0092] For the mixer provided in this embodiment, the stirring structure 2 can rotate relative to the reaction kettle 1 to realize full contact and mixing of the materials. The spray port 201 of the stirring structure 2 can spray the medium towards the inner wall of the reaction kettle 1. When the medium is air, the air can disperse the materials between the inner wall of the reaction kettle 1 and the stirring structure 2; when the medium is ordinary water, the ordinary water can wash the materials between the inner wall of the reaction kettle 1 and the stirring structure 2; when the medium is the solvent required for pretreatment, the solvent can consume the materials between the inner wall of the reaction kettle 1 and the stirring structure 2, so that the materials will not be blocked between the reaction kettle 1 and the stirring structure 2, avoiding the risk of jamming of the stirring structure 2, and ensuring the smooth rotation of the stirring structure 2.

[0093] In one embodiment, as Figure 1 shown, the mixer further includes a rotating shaft 3. The rotating shaft 3 passes through the stirring structure 2, and the rotating shaft 3 drives the stirring structure 2 to rotate.

[0094] As Figure 1 shown, a conveying cavity 31 is arranged in the rotating shaft 3, and the conveying cavity 31 is communicated with the spray port 201.

[0095] By using the conveying cavity 31 inside the rotating shaft 3, the medium is conveyed. The conveying cavity 31 is communicated with the spray port 201, and the conveying cavity 31 conveys the required medium for the spray port 201. Compared with the rotating shaft 3 with a solid structure, the rotating shaft 3 provided in this embodiment is a hollow structure and can convey the medium from the outside.

[0096] In one embodiment, as Figure 1 shown, the mixer further includes a conveying pipeline 7, the conveying pipeline 7 is arranged outside the reaction kettle 1, one end of the conveying pipeline 7 is provided with a medium inlet 71, and the other end is connected to the rotating shaft 3 and communicated with the conveying cavity 31.

[0097] Wherein, the medium inlet 71 is used for injecting the medium, the medium introduced through the medium inlet 71 is conveyed to the conveying cavity 31 of the rotating shaft 3 through the conveying pipeline 7, and then the medium is sprayed between the stirring structure 2 and the inner wall of the reaction kettle 1 by using the injection port 201.

[0098] It can be understood that the conveying pipeline 7 and the rotating shaft 3 are connected by a shaft seal, which can not only ensure the sealing effect, but also avoid the risk of winding of the conveying pipeline 7 as the rotating shaft 3 rotates.

[0099] In one embodiment, the conveying pipeline 7 is provided with a control valve 72, and the control valve 72 is used to control the opening and closing of the conveying pipeline 7 or control the flow rate of the medium.

[0100] As Figure 1 shown, the mixer further includes a rotation driving source 4, the rotation driving source 4 is arranged outside the reaction kettle 1, the rotation driving source 4 can specifically be a rotation motor, the output end of the rotation driving source 4 is directly connected to the rotating shaft 3, or the output end of the rotation driving source 4 is connected to the rotating shaft 3 through a speed reducer, so that the rotating shaft 3 drives the stirring structure 2 to rotate.

[0101] Under the control of the rotation driving source 4, the entire stirring structure 2 rotates, realizing full stirring of the materials in the reaction kettle 1 and improving the uniformity of stirring and mixing. At the same time, it can also prevent the local temperature from being too high, resulting in uneven heating.

[0102] In one embodiment, as Figure 1 shown, a cavity 202 is arranged in the stirring structure 2, and the cavity 202 is used for accommodating the medium, and the cavity 202 is communicated with the injection port 201.

[0103] The cavity 202 inside the stirring structure 2 can be used to accommodate the medium, playing a role of temporary storage and buffering. The cavity 202 is communicated with the injection port 201, and the cavity 202 provides the required medium for the injection port 201.

[0104] In one embodiment, along the radial direction of the reaction kettle 1, the injection port 201 is arranged on the end face of the stirring structure 2 facing the inner wall of the reaction kettle 1.

[0105] Since the end face of the stirring structure 2 facing the inner wall of the reaction kettle 1 is the position where the distance between the stirring structure 2 and the inner wall of the reaction kettle 1 is the closest, by providing a spray port 201 on this end face, the spray port 201 is used to spray the medium. As the stirring structure 2 rotates relative to the reaction kettle 1, the process of spraying the medium while stirring is realized. The sprayed medium can blow, wash or dissolve the materials located between the inner wall of the reaction kettle 1 and the stirring structure 2, avoiding the risk of jamming of the stirring structure 2 to ensure the smooth rotation of the stirring structure 2.

[0106] Among them, the number of the spray ports 201 is multiple, and the multiple spray ports 201 are arranged at intervals on the end face of the stirring structure 2 facing the inner wall of the reaction kettle 1, increasing the uniformity and efficiency of the medium spraying.

[0107] As Figure 1 shown, the stirring structure 2 includes a plow blade 21 and a connecting rod 22. Along the radial direction of the reaction kettle 1, the connecting rod 22 is connected to one end of the plow blade 21 far from the inner wall of the reaction kettle 1. Specifically, one end of the connecting rod 22 is connected to the rotating shaft 3, and the other end is connected to the plow blade 21. The connecting rod 22 plays the role of connecting the rotating shaft 3 and the plow blade 21 in the middle. Among them, the connecting rod 22 can be detachably connected to the connecting seat of the rotating shaft 3 by bolts, facilitating the installation, disassembly and maintenance of the plow blade 21.

[0108] Among them, a communication cavity 221 is arranged in the connecting rod 22. One end of the communication cavity 221 is communicated with the conveying cavity 31 of the rotating shaft 3, and the other end is communicated with the spray port 201 through a cavity 202. In this way, the medium flowing out of the conveying cavity 31 of the rotating shaft 3 enters the cavity 202 through the communication cavity 221 to supply the medium to the spray port 201.

[0109] Exemplarily, the number of the plow blades 21 is multiple, and the multiple plow blades 21 are arranged in parallel at intervals along the axial direction of the reaction kettle 1, so that the materials can continuously feed and convey along the axial direction of the reaction kettle 1.

[0110] Exemplarily, the number of the plow blades 21 is multiple, and the multiple plow blades 21 are arranged in parallel at intervals along the circumferential direction of the reaction kettle 1, that is, the plow blade 21 is equivalent to an extended part of the inner wall of the stirring structure 2, increasing the contact area with the materials and improving the uniformity of stirring.

[0111] It can be understood that the multiple plow blades 21 can be arranged simultaneously along the axial and circumferential directions of the reaction kettle 1. For example, each circumference of the reaction kettle 1 has multiple plow blades 21, and the plow blades 21 of each circumference are arranged along the axial direction of the reaction kettle 1; it can also be that the multiple plow blades 21 are arranged along a spiral structure along the inner wall of the reaction kettle 1.

[0112] As Figure 1 - Figure 2As shown, the plow blade 21 has a pointed end 2101 and a tail end 2102. The pointed end 2101 and the tail end 2102 are arranged along the radial direction of the reactor 1. The tail end 2102 is arranged on the side of the plow blade 21 away from the inner wall of the reactor 1, and the tail end 2102 is connected to the connecting rod 22.

[0113] Since the size of the tail end 2102 is larger than that of the pointed end 2101, the contact connection area between the tail end 2102 and the connecting rod 22 is relatively large, which increases the connection reliability between the plow blade 21 and the connecting rod 22 and improves the supporting effect of the connecting rod 22.

[0114] Specifically, the pointed end 2101 is arranged on the side of the plow blade 21 close to the inner wall of the reactor 1.

[0115] Since the size of the pointed end 2101 is relatively small, the contact area between the pointed end 2101 and the material is relatively small, so that the material deposited between the plow blade 21 and the inner wall of the reactor 1 is relatively small, reducing the risk of material blockage between the stirring structure 2 and the inner wall of the reactor 1.

[0116] Among them, the injection port 201 is arranged at the pointed end 2101.

[0117] Since the pointed end 2101 is the position with the smallest distance between the plow blade 21 and the inner wall of the reactor 1, this position is the most likely to have material blockage. By arranging the injection port 201 at the pointed end 2101, the medium ejected from the injection port 201 can blow or sweep the material located between the pointed end 2101 and the inner wall of the reactor 1, reducing the risk of material blockage between the stirring structure 2 and the inner wall of the reactor 1 and avoiding the situation of jamming of the stirring structure 2 to ensure the smooth rotation of the stirring structure 2.

[0118] In one embodiment, as Figure 1 - Figure 2 shown, the plow blade 21 includes a first side plate 211, a second side plate 212 and a connecting plate 213. The first side plate 211 and the second side plate 212 are arranged at an angle. The first end of the first side plate 211 is connected to the first end of the second side plate 212 to form the pointed end 2101. The second end of the first side plate 211 and the second end of the second side plate 212 are connected by the connecting plate 213 to form the tail end 2102.

[0119] Among them, the first side plate 211 and the second side plate 212 can be connected by welding, which has a simple process and is convenient to operate. Or the first side plate 211 and the second side plate 212 are of an integrally formed structure, reducing the time for part assembly and fitting and saving production costs. Since there is a gap between the second end of the first side plate 211 and the second end of the second side plate 212, the second end of the first side plate 211 is connected to the second end of the second side plate 212 through a connecting plate 213, and the connecting plate 213 plays a role in blocking the gap. Then a closed cavity 202 is formed between the first side plate 211, the second side plate 212 and the connecting plate 213, which can better accommodate and buffer the medium.

[0120] As the rotating shaft 3 rotates, the rotating shaft 3 drives the plow blade 21 to rotate through the connecting rod 22. Since the first side plate 211 and the second side plate 212 of the plow blade 21 are arranged at an angle, the first side plate 211 and the second side plate 212 located on both sides play a guiding role, making the material move to both sides along the first side plate 211 and the second side plate 212, improving the sufficiency of material mixing.

[0121] Exemplarily, the injection port 201 is arranged at the connection position between the first side plate 211 and the second side plate 212.

[0122] For example, the first side plate 211 and the second side plate 212 are connected by electric welding, so that the first side plate 211 and the second side plate 212 are discontinuously connected, that is, there are multiple connecting parts between the first side plate 211 and the second side plate 212. The injection port 201 is arranged between adjacent two connecting parts. While ensuring the connection in the middle of the two side plates, the injection port 201 can also be formed without additionally opening the injection port 201, simplifying the production process and reducing the production cost.

[0123] Since the first end of the first side plate 211 is connected to the first end of the second side plate 212 to form a pointed end 2101, and the injection port 201 is arranged at the connection position between the first side plate 211 and the second side plate 212, the distance between this connection position and the inner wall of the reaction kettle 1 is the smallest, and it is also the position where material blockage is most likely to occur. The medium can blow or clean the material corresponding to this connection position, reducing the risk of material blockage between the pointed end 2101 and the inner wall of the reaction kettle 1.

[0124] Exemplarily, the injection port 201 is arranged on the side of the first side plate 211 close to the pointed end 2101; and / or, the injection port 201 is arranged on the side of the second side plate 212 close to the pointed end 2101.

[0125] For example, the ejection port 201 can be disposed on the first side plate 211, or the ejection port 201 can be disposed on the second side plate 212, or the ejection port 201 can be disposed on both the first side plate 211 and the second side plate 212 simultaneously, reducing the concentration of the material along the first side plate 211 or the second side plate 212 towards the tip portion 2101, avoiding the risk of jamming of the plow blade 21, so as to ensure the smooth rotation of the stirring structure 2.

[0126] In one embodiment, as Figure 1 shown, the reaction kettle 1 is provided with a steam inlet 103 and a steam outlet 104.

[0127] Among them, the steam inlet 103 is used to introduce steam, and the steam outlet 104 is used to discharge steam. After the materials are mixed evenly, steam is used for heating so that the temperature and pressure in the reaction kettle 1 reach the set values. For example, the temperature in the reaction kettle 1 is about 150 °C and the reaction time is about 1 hour, which can 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 the heat energy, reducing energy consumption, and lowering the overall cost.

[0128] In one embodiment, as Figure 1 shown, the mixer further includes a heat insulation layer 5, and the heat insulation layer 5 is disposed on at least one of the inner wall and the outer wall of the reaction kettle 1. The heat insulation layer 5 is made of a heat insulation material, and the heat insulation layer 5 plays a heat insulation role for the reaction kettle 1, reducing the loss of heat.

[0129] In one embodiment, as Figure 1 shown, the mixer further includes a sensor 6, and the sensor 6 is at least partially disposed in the reaction kettle 1 and is used to detect at least one of the temperature, humidity and pressure in the reaction kettle 1. The sensor 6 is used to realize the real-time monitoring of various parameters in the reaction kettle 1 to ensure the reaction effect of the materials.

[0130] The mixer provided in this embodiment has the advantages of good material mixing performance, uniform heating, and not being easily blocked during the pretreatment of high temperature and high pressure.

[0131] Embodiment Two

[0132] This embodiment is similar to Embodiment One, and the only difference lies in the different stirring structure 2.

[0133] As Figure 3 shown, the stirring structure 2 provided in this embodiment includes a hub 231 and a plurality of stirring blades 232. The hub 231 is sleeved on the rotating shaft 3, and the plurality of stirring blades 232 are arranged along the circumferential direction of the hub 231 and are connected to the hub 231. Among them, the stirring structure 2 can also be called a paddle-type stirring structure. The rotary drive source 4 is connected to the plurality of stirring blades 232 through the rotating shaft 3 to drive the stirring blades 232 to rotate relative to the reaction kettle 1.

[0134] It is understandable that the number of the stirring blades 232 in this embodiment is not limited. The number of the stirring blades 232 can be odd or even. For example, the number of the stirring blades 232 can be selected as two, four, six, eight, etc., and the specific value can be adjusted according to the actual production situation.

[0135] Exemplarily, the stirring blade 232 can be at least one of a curved blade structure, a straight blade structure, and a folded blade structure, and the specific shape can be selected according to the actual production situation. As Figure 3 shown, the stirring blade is a straight blade structure.

[0136] Exemplarily, the stirring blade 232 can be directly connected to the circumference of the hub 231. For example, the stirring blade 232 is connected to the hub 231 by welding; the stirring blade 232 can also be connected to the rotating shaft 3 through the hub 231. For example, the hub 231 is sleeved on the rotating shaft 3, and a plurality of stirring blades 232 are arranged along the circumferential direction of the hub 231 and connected to the hub 231.

[0137] Specifically, the width of the stirring blade 232 in the circumferential direction of the reaction kettle 1 is relatively small, and the rotation speed of the stirring blade 232 is relatively low, which is beneficial to the flow of materials and is suitable for the uniform mixing of low-viscosity materials and the enhancement of the heat transfer process.

[0138] Wherein, in the radial direction of the reaction kettle 1, the injection port 201 is arranged on the end face of the stirring blade 232 facing the inner wall of the reaction kettle 1. The number and position of the injection ports in this embodiment are not limited. For example, a plurality of injection ports 201 can be arranged at intervals on the end face of the stirring blade 232 facing the inner wall of the reaction kettle 1, and the distance between adjacent two injection ports 201 is the same. For example, four, six, eight or more injection ports can be arranged, and the specific number can be adjusted according to the actual production situation.

[0139] Since the end face of the stirring blade 232 facing the inner wall of the reaction kettle 1 is the position where the distance between the stirring structure 2 and the inner wall of the reaction kettle 1 is the closest, by arranging the injection port 201 on this end face, the injection port 201 is used to inject the medium. As the stirring blade 232 rotates relative to the reaction kettle 1, the process of injecting the medium while stirring is realized. The injected medium can blow, wash or dissolve the materials located between the inner wall of the reaction kettle 1 and the stirring structure 2, avoiding the risk of the stirring structure 2 getting stuck and ensuring the smooth rotation of the stirring structure 2.

[0140] Embodiment III

[0141] This embodiment is similar to Embodiment II, and the only difference lies in the different stirring structures 2.

[0142] As Figure 4 - Figure 5As shown in the figure, the stirring structure 2 provided in this embodiment includes a hub 231 and a plurality of stirring blades 232. The hub 231 is connected to the rotating shaft 3, and the plurality of stirring blades 232 are arranged along the circumferential direction of the hub 231 and connected to the hub 231. This stirring structure 2 can also be called an open turbine agitator. The rotary drive source 4 is connected to the plurality of stirring blades 232 through the rotating shaft 3 to drive the plurality of stirring blades 232 to rotate relative to the reaction kettle 1.

[0143] Since the rotation speed of the turbine assembly is relatively high, the turbine assembly is conducive to turbulent pulsation and is suitable for dispersion or emulsification processes that require high circulation capacity and shear force. At the same time, under the same conditions, the power requirement of the turbine assembly is relatively low, that is, under the same power consumption, the reliability of the turbine assembly is good and the stirring efficiency is higher.

[0144] Among them, along the radial direction of the reaction kettle 1, the injection port 201 is arranged on the end face of the stirring blade 232 facing the inner wall of the reaction kettle 1. The number and position of the injection ports in this embodiment are not limited. For example, a plurality of injection ports 201 can be arranged at intervals on the end face of the stirring blade 232 facing the inner wall of the reaction kettle 1, and the distance between adjacent two injection ports 201 is the same. For example, four, six, eight or more injection ports 201 can be set, and the specific number can be adjusted according to the actual production situation.

[0145] Since the end face of the stirring blade 232 facing the inner wall of the reaction kettle 1 is the position where the distance between the stirring structure 2 and the inner wall of the reaction kettle 1 is the closest, by arranging the injection port 201 on this end face, the injection port 201 is used to inject the medium. As the stirring blade 232 rotates relative to the reaction kettle 1, the process of injecting the medium while stirring is realized. The injected medium can be used to blow, wash or dissolve the materials located between the inner wall of the reaction kettle 1 and the stirring blade 232, avoiding the risk of jamming of the stirring structure 2 to ensure the smooth rotation of the stirring structure 2.

[0146] By rotating the plurality of stirring blades 232 relative to the reaction kettle 1, the turbine stirring process is realized to form a vortex in the material to realize the process of material mixing and reaction.

[0147] Exemplarily, the stirring blade 232 is at least one of a curved blade structure, a straight blade structure, and a folded blade structure. As Figure 4 shown, when the stirring blade 232 is a curved blade structure, the stirring structure 2 can be called a curved blade open turbine structure; when the stirring blade 232 is a straight blade structure, the stirring structure 2 can be called a straight blade open turbine structure; as Figure 5 shown, when the stirring blade 232 is a folded blade structure, the stirring structure 2 can be called a folded blade open turbine structure.

[0148] Example Four

[0149] This embodiment is similar to Embodiment 1, with the only difference being the stirring structure 2.

[0150] As Figure 6 - Figure 8 shown, the stirring structure 2 provided in this embodiment includes a hub 241, a disc 242, and a plurality of stirring blades 243. The disc 242 is installed on the hub 241 and connected to the hub 241. The plurality of stirring blades 243 are arranged along the circumference of the disc 242 and connected to the disc 242. This stirring structure 2 can also be called a disc turbine structure.

[0151] Exemplarily, the rotary drive source 4 is connected to the hub 241 through the rotary shaft 3, and then connected to the middle of the disc 242, so that the disc 242 drives the plurality of stirring blades 243 to rotate relative to the reaction kettle 1, realizing the turbine stirring process to form a vortex in the material, so as to realize the process of material mixing and reaction.

[0152] Among them, the stirring blade 243 is at least one of a curved blade structure, a straight blade structure, and a folded blade structure. As Figure 6 shown, when the stirring blade 243 is a straight blade structure, the stirring structure 2 can be called a straight blade disc turbine structure; as Figure 7 shown, when the stirring blade 243 is a folded blade structure, the stirring structure 2 can be called a folded blade disc turbine structure; as Figure 8 shown, when the stirring blade 243 is a curved blade structure, the stirring structure 2 can be called a curved blade disc turbine structure.

[0153] Among them, along the radial direction of the reaction kettle 1, the injection port 201 is arranged on the end face of the stirring blade 243 facing the inner wall of the reaction kettle 1. The number and position of the injection port 201 in this embodiment are not limited. For example, a plurality of injection ports can be arranged at intervals on the end face of the stirring blade 243 facing the inner wall of the reaction kettle 1, and the distance between adjacent two injection ports 201 is the same. For example, four, six, eight or more injection ports 201 can be set, and the specific number can be adjusted according to the actual production situation.

[0154] Since the end face of the stirring blade 243 facing the inner wall of the reaction kettle 1 is the position where the distance between the stirring structure 2 and the inner wall of the reaction kettle 1 is the closest, by arranging the injection port 201 on this end face, the injection port 201 is used to inject the medium. As the stirring blade 243 rotates relative to the reaction kettle 1, the process of injecting the medium while stirring is realized. The injected medium can disperse, wash or dissolve the material between the inner wall of the reaction kettle 1 and the stirring blade 243, avoiding the risk of the stirring structure 2 getting stuck, so as to ensure the smooth rotation of the stirring structure 2.

[0155] Embodiment Five

[0156] This embodiment is similar to Embodiment 1, with the only difference being the stirring structure 2.

[0157] As Figure 9 - Figure 10 shown, the stirring structure 2 provided in this embodiment includes a stirring frame 25. The stirring frame 25 is a frame structure, and this stirring structure 2 can also be called a frame-type stirring structure.

[0158] Among them, the stirring frame 25 extends along the axial direction of the reaction kettle 1, which can increase the contact area between the stirring structure 2 and the material in the axial direction of the reaction kettle 1 and improve the uniformity of stirring and mixing.

[0159] Exemplarily, the stirring frame 25 is at least one of a closed structure and a semi-closed structure. As Figure 9 shown, when the stirring frame 25 is a closed structure, for example, the stirring frame 25 is a rectangular frame and is symmetrically arranged with respect to the rotation axis 3, and the stirring balance is good; as Figure 10 shown, when the stirring frame 25 is a semi-closed structure, for example, the stirring frame 25 is a U-shaped structure, and the opening of the stirring frame 25 faces or is away from the rotation driving source 4, and the stirring structure 2 can also be called an anchor-type stirring structure.

[0160] Among them, the injection port 201 is arranged on the end face of the stirring frame 25 facing the inner wall of the reaction kettle 1. The number and position of the injection ports in this embodiment are not limited. For example, a plurality of injection ports 201 can be arranged at intervals on the end face of the stirring frame 25 facing the inner wall of the reaction kettle 1, and the distance between adjacent two injection ports is the same. For example, four, six, eight or more injection ports 201 are arranged, and the specific number can be adjusted according to the actual production situation.

[0161] Since the end face of the stirring frame 25 facing the inner wall of the reaction kettle 1 is the position where the distance between the stirring structure 2 and the inner wall of the reaction kettle 1 is the closest, by arranging the injection port 201 on this end face, the injection port 201 is used to inject the medium. As the stirring frame 25 rotates relative to the reaction kettle 1, the process of injecting the medium while stirring is realized. The injected medium can blow, wash or dissolve the material located between the inner wall of the reaction kettle 1 and the stirring frame 25, avoiding the risk of the stirring structure 2 getting stuck and ensuring the smooth rotation of the stirring structure 2.

[0162] Embodiment Six

[0163] This embodiment is similar to Embodiment One, and the only difference lies in the different stirring structures 2.

[0164] As Figure 11 shown, the stirring structure 2 provided in this embodiment includes a spiral blade 26. The spiral blade 26 is distributed in a spiral structure along the axial direction of the reaction kettle 1. The rotation driving source 4 is connected to the spiral blade 26 through the rotation axis 3 to drive the spiral blade 26 to rotate relative to the reaction kettle 1. This stirring structure 2 can also be called a screw-type stirring structure.

[0165] In this way, while the spiral blades 26 distributed in a spiral structure achieve stirring of the materials, they also play a role in guiding the materials, enabling the materials to be stirred along the axial direction of the reaction kettle 1, improving the thoroughness of stirring, and enhancing the stirring efficiency and mixing uniformity.

[0166] Exemplarily, as Figure 11 shown, along the radial direction of the reaction kettle 1, the side of the spiral blade 26 away from the inner wall of the reaction kettle 1 can be directly connected to the rotating shaft 3, which is equivalent to the stirring structure 2 being a solid structure, with a simple structure and relatively low production cost.

[0167] Exemplarily, as Figure 12 shown, along the radial direction of the reaction kettle 1, the side of the stirring structure 2 away from the inner wall of the reaction kettle 1 is connected to the rotating shaft 3 through the mounting rod 28, which is equivalent to the stirring structure 2 being a hollow structure, reducing the risk of the strip-shaped materials winding around the spiral blade 26 during the stirring process. At the same time, the mounting rod 28 also plays a role in fixing the spiral blade 26, improving the structural stability of the stirring structure 2. This stirring structure 2 can also be called a ribbon-type stirring structure.

[0168] Exemplarily, as Figure 11 - Figure 12 shown, along the radial direction of the reaction kettle 1, the distance between the end face of the side of the spiral blade 26 facing the inner wall of the reaction kettle 1 and the inner wall of the reaction kettle 1 is the same. That is, the outer shape of the stirring structure 2 is similar to a cylindrical structure, with a neat structure and good aesthetics.

[0169] Exemplarily, as Figure 13 shown, the distance between the end face of the side of the spiral blade 26 facing the inner wall of the reaction kettle 1 and the inner wall of the reaction kettle 1 gradually increases or decreases. That is, the outer shape of the stirring structure 2 is similar to a conical structure. While achieving the stirring of the materials along the axial direction of the reaction kettle 1, it can also achieve the stirring of the materials along the radial direction of the reaction kettle 1, making the stirring more thorough and further improving the stirring efficiency.

[0170] Among them, the injection port 201 is arranged on the end face of the side of the spiral blade 26 facing the inner wall of the reaction kettle 1. The number and position of the injection ports in this embodiment are not limited. For example, a number of injection ports 201 can be arranged at intervals on the end face of the side of the spiral blade 26 facing the inner wall of the reaction kettle 1, and the distance between adjacent two injection ports 201 is the same. The specific number can be adjusted according to the actual production situation.

[0171] Since the end face of the spiral blade 26 facing the inner wall of the reaction kettle 1 is the position where the distance between the stirring structure 2 and the inner wall of the reaction kettle 1 is the closest, by arranging the injection port 201 on this end face, the injection port 201 is used to inject the medium. As the spiral blade 26 rotates relative to the reaction kettle 1, the process of injecting the medium while stirring is realized. The injected medium can disperse, wash or dissolve the materials located between the inner wall of the reaction kettle 1 and the spiral blade 26, avoiding the risk of jamming of the stirring structure 2 to ensure the smooth rotation of the stirring structure 2.

[0172] Example Seven

[0173] This example is similar to Example One, and the only difference lies in the stirring structure 2.

[0174] As Figure 14 shown, the stirring structure 2 provided in this example includes a hub 271 and a plurality of propulsion blades 272, which are arranged circumferentially along the hub 271 and connected to the hub 271. At least some of the plurality of propulsion blades 272 are arranged at an angle. The rotary drive source 4 is connected to the plurality of propulsion blades 272 through the rotary shaft 3 to drive the propulsion blades 272 to rotate relative to the reaction kettle 1. This stirring structure 2 can also be called a propulsive stirring structure.

[0175] When using the propulsion blades 272 to stir the materials, since at least some of the plurality of propulsion blades 272 are arranged at an angle, the materials can move between at least two propulsion blades 272 arranged at an angle, playing a role of propulsion or feeding to a certain extent, effectively promoting the up and down exchange of the fluid along the axial direction of the reaction kettle 1, with a large circulation volume and a small stirring power, being suitable for the stirring process of low-viscosity materials, and having a simple structure and being easy to manufacture.

[0176] It can be understood that the stirring structure 2 can also be a combined form of a propulsive stirring structure and a paddle stirring structure. The paddle stirring structure 2 can have stirring rods or straight-blade stirring paddles, increasing the contact time between the air entering from the bottom of the reaction kettle 1 and the fermentation broth, effectively improving the efficiency of dissolved oxygen. At the same time, since the paddle stirring structure 2 can rotate freely, a flexible radial stirring flow is generated, which increases and decreases with the increase and decrease of the axial flow generated by the propulsive stirring structure 2, achieving an automatic adjustment effect, and since it will not strongly interfere with the operation of the propulsive stirring structure 2, the power loss is also reduced, achieving the effect of energy conservation.

[0177] Among them, the injection port 201 is arranged on the end faces of the propulsion blade 272 and the straight-blade stirring paddle facing the inner wall of the reaction kettle 1. The number and position of the injection ports in this example are not limited. For example, a number of injection ports 201 can be arranged at intervals on the end faces of the propulsion blade 272 and the straight-blade stirring blade 232 facing the inner wall of the reaction kettle 1, and the distance between adjacent two injection ports 201 is the same. The specific number can be adjusted according to the actual production situation.

[0178] Since the end faces of the propelling blade 272 and the straight-blade stirring blade 232 facing the inner wall side of the reaction kettle 1 are the positions where the distance between the stirring structure 2 and the inner wall of the reaction kettle 1 is the closest, by arranging the injection port 201 on this end face, and the injection port 201 is used to inject the medium. As the propelling blade 272 and the straight-blade stirring blade 232 rotate relative to the reaction kettle 1, the process of injecting the medium while stirring is realized. The injected medium can be used to blow, wash or dissolve the materials located between the inner wall of the reaction kettle 1 and the propelling blade 272 and the straight-blade stirring blade 232, avoiding the risk of jamming of the stirring structure 2 to ensure the smooth rotation of the stirring structure 2.

[0179] It should be noted in this embodiment of the present invention that only one example of adopting the principle of the present invention is shown in the drawings and described in this specification. Those of ordinary skill in the art should clearly understand that the principle of the present invention is not limited to any details of the devices shown in the drawings or described in the specification or any components.

[0180] It should be understood that the present invention does not limit its application to the detailed structure and arrangement of the components proposed in this specification. The present invention can have other embodiments and can be implemented and executed in various ways. The foregoing variations and modifications fall within the scope of the present invention. It should be understood that the present invention disclosed and defined in this specification extends to all alternative combinations of two or more separate features mentioned or apparent in the text and / or drawings. All these different combinations constitute multiple alternative aspects of the present invention. The embodiments described in this specification illustrate the best mode known for implementing the present invention and will enable those skilled in the art to utilize the present invention.

[0181] After considering the specification and practicing the creation disclosed herein, those skilled in the art will readily think of other embodiments of the present invention. The present invention is intended to cover any variations, uses or adaptations of the present invention, which follow the general principles of the present invention and include the common general knowledge or conventional technical means in the technical field not disclosed in the present invention. The specification and the exemplary embodiments are only regarded as exemplary, and the true scope and spirit of the present invention are pointed out by the appended claims.

[0182] It should be understood that the present invention is not limited to the precise structures already described and shown in the drawings and can be modified and changed without departing from its scope. The protection scope of the present invention is only limited by the appended claims.

Claims

1. A mixer, characterized in that, Comprising: A reaction kettle, which is provided with a feed inlet; A stirring structure, which is arranged inside the reaction kettle and can rotate relative to the reaction kettle; Wherein, the stirring structure is provided with a jet port, the jet port is arranged towards the inner wall of the reaction kettle, and the jet port is used for jetting a medium.

2. The mixer according to claim 1, characterized in that, A cavity is arranged inside the stirring structure, the cavity is used for accommodating the medium, and the cavity is communicated with the jet port.

3. The mixer according to claim 1, characterized in that, In the radial direction of the reaction kettle, the jet port is arranged on the end face of the stirring structure on the side facing the inner wall of the reaction kettle; And / or, the number of the jet ports is multiple, and the multiple jet ports are arranged at intervals on the end face of the stirring structure on the side facing the inner wall of the reaction kettle.

4. The mixer according to claim 1, characterized in that, The stirring structure includes: A hub; A plurality of stirring blades, which are arranged along the circumferential direction of the hub and connected to the hub; Wherein, in the radial direction of the reaction kettle, the jet port is arranged on the end face of the stirring blade on the side facing the inner wall of the reaction kettle.

5. The mixer according to claim 1, characterized in that, The stirring structure includes: A hub; A disc, which is installed on the hub and connected to the hub; A plurality of stirring blades, which are arranged along the circumferential direction of the disc and connected to the disc; Wherein, in the radial direction of the reaction kettle, the jet port is arranged on the end face of the stirring blade on the side facing the inner wall of the reaction kettle.

6. The mixer according to claim 4 or 5, characterized in that, The stirring blade is at least one of a curved blade structure, a straight blade structure, and a folded blade structure.

7. The mixer according to claim 1, characterized in that, The stirring structure includes: A stirring frame, and the stirring frame is a frame structure; Wherein, the jet port is arranged on the end face of the stirring frame on the side facing the inner wall of the reaction kettle; Wherein, the stirring frame is at least one of a closed structure and a semi-closed structure.

8. The mixer according to claim 1, characterized in that, The stirring structure includes: A spiral blade, and the spiral blade is distributed in a spiral structure along the axial direction of the reaction kettle; Wherein, the jet port is arranged on the end face of the spiral blade on the side facing the inner wall of the reaction kettle.

9. The mixer according to claim 8, wherein In the radial direction of the reaction kettle, the distance between the end face of the side of the spiral blade facing the inner wall of the reaction kettle and the inner wall of the reaction kettle is the same, or the distance between the end face of the side of the spiral blade facing the inner wall of the reaction kettle and the inner wall of the reaction kettle gradually increases or decreases.

10. The mixer according to claim 1, characterized in that, The stirring structure includes: A hub; A plurality of propulsion blades, which are arranged along the circumferential direction of the hub and connected to the hub, and at least part of the plurality of propulsion blades are arranged at an included angle; Wherein, the jet port is arranged on the end face of the propulsion blade on the side facing the inner wall of the reaction kettle.

11. The mixer according to claim 1, characterized in that, The stirring structure includes a plowshare, the plowshare has a tip end and a tail end, the tip end and the tail end are arranged in the radial direction of the reaction kettle, and the tip end is arranged on the side of the plowshare close to the inner wall of the reaction kettle; Wherein, the jet port is arranged at the tip end.

12. The mixer according to claim 11, characterized in that, The plowshare includes a first side plate, a second side plate and a connecting plate, the first side plate and the second side plate are arranged at an included angle, the first end of the first side plate is connected to the first end of the second side plate to form the tip end, and the second end of the first side plate and the second end of the second side plate are connected by the connecting plate to form the tail end; Wherein, the jet port is arranged at the connection position between the first side plate and the second side plate.

13. The mixer according to claim 12, characterized in that, The injection port is arranged at the first side plate near the pointed end portion; and / or, the injection port is arranged at the second side plate near the pointed end portion.

14. The mixer according to claim 11, characterized in that, The stirring structure further includes a connecting rod, and in the radial direction of the reaction kettle, the connecting rod is connected to one end of the plow blade far away from the inner wall of the reaction kettle; wherein, a communication cavity is arranged in the connecting rod, and the communication cavity is communicated with the injection port.

15. The mixer according to claim 1, wherein The mixer further includes: a rotating shaft, arranged in the reaction kettle, and the rotating shaft penetrates through the stirring structure; a rotation driving source, arranged outside the reaction kettle, and an output end of the rotation driving source is connected to the rotating shaft to drive the stirring structure to rotate by the rotating shaft; wherein, a conveying cavity is arranged in the rotating shaft, and the conveying cavity is communicated with the injection port.

16. The mixer according to claim 15, wherein In the radial direction of the reaction kettle, one side of the stirring structure far away from the inner wall of the reaction kettle is connected to the rotating shaft through a mounting rod.

17. The mixer according to claim 15, characterized in that, The mixer further includes: a conveying pipeline, arranged outside the reaction kettle, one end of the conveying pipeline is provided with a medium inlet, and the other end is connected to the rotating shaft and communicated with the conveying cavity.

18. The mixer according to claim 17, characterized in that, The conveying pipeline is provided with a control valve; and / or, the reaction kettle is provided with a discharge port, and the feed port and the discharge port are arranged at two ends of the reaction kettle along the axial direction of the reaction kettle.

19. The mixer according to claim 1, characterized in that, The reaction kettle is provided with a steam inlet and a steam outlet; and / or, the reaction kettle further includes a sensor, at least part of the sensor is arranged in the reaction kettle, and is used for detecting at least one of the temperature, humidity and pressure in the reaction kettle; and / or, the axial direction of the reaction kettle is arranged parallel to the horizontal plane.

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