Continuous reaction device for straw liquefaction

Abstract

The invention discloses a continuous reaction device for straw liquefaction, and relates to the technical field of straw liquefaction. The device comprises a crushing box, a conical filter cylinder is fixed to the middle in the crushing box, a crushing roller is rotationally matched above the conical filter cylinder, a drying box is arranged on the peripheral side of the bottom of the crushing box, and a conveying pipe is fixed to the peripheral side of the lower portion of the crushing box. According to the invention, the conical filter cylinder is arranged in the crushing box, so that a straw raw material entering the reactor to be liquefied is powdery, and the subsequent liquefaction reaction efficiency is improved; after the reactor is completely heated by the heating cylinder, liquid oil in the heating cylinder can be conveyed into the drying box through the liquid conveying pipe, heat can be fully recycled, meanwhile, the cooling speed of the reactor is increased, in addition, a filter residue assembly is arranged at the position of the annular guide rail, the filter residue assembly can extrude and filter liquefied products in the filter cylinder, waste of filtrate is reduced, and the energy-saving and environment-friendly effects are achieved. Therefore, the liquefaction efficiency of the reaction device is further improved.

Description

Technical Field

[0001] The invention belongs to the field of straw liquefaction, and in particular relates to a continuous reaction device for straw liquefaction. Background Art

[0002] Straw biomass is abundant in nature, renewable, environmentally friendly and degradable, but it has not been widely used so far, which not only causes waste of resources but also causes environmental pollution. Liquefaction is a convenient and effective technology that opens a door to the utilization of the huge amount of biomass on the earth. Under high temperature and high pressure or solvation, components in straw such as cellulose, hemicellulose and lignin can be converted into low molecular weight and highly active substances. These small molecules can be used to prepare polymer materials such as polyurethane foam, resin (phenol and epoxy resin) and adhesives.

[0003] A Chinese patent with publication number CN103665391A discloses a method for liquefying straw using ionic liquids. The method is characterized in that an ionic liquid formed by mononuclear and binuclear nitrogen-containing compounds composed of alkyl imidazole, alkyl pyridine, etc. and anions and in a liquefied state at room temperature is used as a liquefier to liquefy straw. Compared with the traditional liquefaction method, the method is characterized by a simple process, a high liquefaction rate, low corrosiveness, a clean process, and a liquefier with structural adjustability, reusability, and environmental protection. The liquefied product obtained by the method provided by the present invention can be directly used to prepare new polymer materials such as bonding.

[0004] In the existing straw liquefaction reaction, it is usually necessary to heat the straw raw material to allow the straw raw material to react with the liquefier and the catalyst by stirring, so as to form a liquefied product. However, the existing operation is generally to move the reactor from the heating position after the reaction is completed and enter the cooling position for rapid cooling, so as to achieve the purpose of terminating the reaction. This operation is relatively troublesome. In addition, a large amount of heat in the heating position will be wasted, and the heat cannot be recycled. In addition, the liquefied product after the reaction needs to be filtered to separate the impurities therein from the filtrate. If it is filtered directly, the impurities and the filtrate may not be completely separated, part of the filtrate will be wasted, and the filtration speed is slow, which reduces the final liquefaction efficiency of the reaction device. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a continuous reaction device for straw liquefaction, thereby solving the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is: A continuous reaction device for straw liquefaction, comprising: a crushing box, a conical filter cartridge is fixed in the middle of the crushing box, a crushing roller is rotatably matched in the conical filter cartridge, the bottom of the crushing box is sleeved in a drying box, a feed pipe is connected to the peripheral side of the lower part of the crushing box, the other end of the feed pipe is connected to a reactor, the peripheral side of the bottom of the reactor is sleeved in a heating cylinder, a condenser is installed on one side of the upper part of the reactor, a stirring assembly is arranged inside the reactor, and a liquid infusion pipe is connected between the heating cylinder and the drying box; A filtrate cylinder is fixed at the bottom of the drying box, the filtrate cylinder is located on one side of the heating cylinder, a filter cylinder is installed in the filtrate cylinder, the bottom of the reactor is connected to the top of the filter cylinder through a feed pipe, an annular guide rail is fixed to the upper circumference of the filter cylinder, a filter residue assembly and a stirring rod are slidably fitted in the annular guide rail, the filter residue assembly cooperates with the inner wall of the filter cylinder, the stirring rod is arranged inside the filtrate cylinder, and a distillation chamber is installed on one side of the filtrate cylinder.

[0007] Optionally, a feed port is provided at the top of the crushing box, the bottom of the crushing box is inclined, and a gap is left between the bottom of the conical filter cartridge and the bottom of the crushing box.

[0008] By adopting the above technical scheme, the feed inlet is used to feed the straw raw material into the crushing box for crushing. The crushed straw powder can fall to the bottom of the crushing box through the conical filter cartridge for collection, and the bottom of the crushing box is inclined to facilitate the fallen straw powder to slide to the feed pipe, thereby facilitating the feed pipe to transport the material.

[0009] Optionally, a notch is provided in the middle of one side of the drying box, a feed pipe is passed through the notch, one end of the feed pipe is fixed to one side of the upper end of the reactor, and the reactor is located below one side of the drying box.

[0010] By adopting the above technical solution, the straw powder can be transported to the upper part of the reactor through the feed pipe, so as to be added from top to bottom, which facilitates the mixing reaction of the straw raw material in the reactor in the next step.

[0011] Optionally, liquid oil is installed in the heating cylinder, an oil pump is fixed to one end of the infusion tube, and an opening is provided at the top of the reactor.

[0012] By adopting the above technical solution, the liquid oil is heated by the heating cylinder to heat the inside of the reactor, and the catalyst and the catalyst can be added to the inner wall of the reactor through the opening for mixed reaction.

[0013] Optionally, the stirring assembly includes a rotating shaft rotatably engaged with the middle part of the upper side of the reactor, a main stirring blade fixed on the circumferential side of the rotating shaft, three connecting rods fixed on the circumferential side of the upper end of the main stirring blade, a first scraper fixed on one side of the upper end of the connecting rod, an auxiliary stirring blade rotatably engaged with the lower end of the connecting rod, a through groove opened in the middle part of the upper end of the main stirring blade and in the middle of the three connecting rods, and a bevel gear assembly rotatably engaged in the through groove.

[0014] By adopting the above technical solution, the rotating shaft can drive the bevel gear assembly, the main stirring blade, the three auxiliary stirring blades and the three first scrapers to rotate synchronously, so that the main stirring blade and the three auxiliary stirring blades can rotate on their own while rotating in the reactor, and the three first scrapers can scrape the inner wall of the reactor to reduce the occurrence of liquid adhering to the inner wall of the reactor, so that the mixing reaction of the raw materials in the reactor is more uniform and thorough.

[0015] Optionally, the bevel gear assembly includes a first bevel gear fixed to the lower end of the rotating shaft, three second bevel gears rotatably fitted inside the upper end of the main stirring blade, a rotating shaft fixed to the axial center of the second bevel gear and located inside one end of the connecting rod, a third bevel gear fixed to one end of the rotating shaft, and a fourth bevel gear rotatably fitted inside the other end of the connecting rod, and the fourth bevel gear is fixed to the upper end of the auxiliary stirring blade, the first bevel gear and the three second bevel gears are respectively meshed with each other, and the third bevel gear and the fourth bevel gear are meshed with each other.

[0016] By adopting the above technical solution, the first bevel gear is engaged with the three second bevel gears, and the third bevel gear is engaged with the fourth bevel gear, so that the main stirring blade and the three auxiliary stirring blades can be driven to rotate synchronously while rotating on their own, thereby further improving the efficiency of the raw material mixing reaction in the reactor.

[0017] Optionally, one end of the feed pipe passes through the bottom of the heating cylinder and is connected to the reactor, and the other end of the feed pipe is located above the filter cylinder.

[0018] By adopting the above technical solution, the feed pipe can transport the liquefied product after the mixed reaction to the filter cartridge for filtration.

[0019] Optionally, the filter residue assembly includes a slider and a second scraper that are slidably fitted on the upper side of the annular guide rail, an internal gear fixed to the inner wall of the annular guide rail, a shaft fixed to one side of the slider, a gear rotatably fitted to one end of the shaft, and a pressure roller fixed to the lower side of the gear. The internal gear and the gear are both inclined and meshed with the internal gear. The pressure roller and the second scraper are attached to the inner wall of the filter cylinder, and a stirring rod is fixed to the other side of the slider.

[0020] By adopting the above technical solution, the annular guide rail can drive the gear to mesh and rotate along the internal gear, thereby driving the pressure roller to roll along the inner wall of the filter cartridge to achieve extrusion filtration of the liquefied product, thereby accelerating the separation of the filtrate and reducing waste. In addition, the second scraper can scrape the residue after rolling from the inner wall of the filter cartridge and discharge it through the bottom of the filter cartridge to facilitate subsequent cleaning work, and the stirring rod can stir the filtered filtrate again.

[0021] Optionally, a filter screen is installed between the filtrate cylinder and the distillation chamber, and a drain port is provided below the distillation chamber.

[0022] By adopting the above technical solution, the filter screen can filter the filtrate in the filtrate cylinder again and then enter the distillation chamber for distillation, so as to obtain a better liquefied product.

[0023] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all the advantages described below at the same time: By arranging a conical filter cartridge in the crushing box, the crushed straw can be screened to ensure that the straw raw material entering the reactor for liquefaction is in powder form, thereby improving the subsequent liquefaction reaction efficiency, and then a drying box is arranged on the lower side of the crushing box, and an infusion pipe is arranged between the drying box and the heating cylinder. After the heating cylinder completely heats the reactor, the liquid oil in the heating cylinder can be transported to the drying box through the infusion pipe, thereby realizing the drying treatment of the straw raw material, further facilitating the subsequent liquefaction use, fully recycling the heat, and accelerating the cooling speed of the reactor. In addition, an annular guide rail is arranged above the filter cartridge, and a filter residue assembly is arranged on the annular guide rail. The filter residue assembly can squeeze and filter the liquefied product in the filter cartridge to avoid the situation where the filtrate cannot be completely separated, reduce the waste of the filtrate, and further improve the liquefaction efficiency of the reaction device.

[0024] The specific implementation modes of the present invention are further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings: Figure 1 This is a schematic diagram of the crushing box structure; Figure 2 It is a schematic diagram of the drying box structure; Figure 3 Schematic diagram of the reactor structure; Figure 4 It is a schematic diagram of the structure of a conical filter cartridge; Figure 5 for Figure 4 Schematic diagram of the structure at A in the middle; Figure 6 for Figure 4 Schematic diagram of the structure at point B in the middle.

[0026] In the accompanying drawings, the components represented by the reference numerals are listed as follows: Crushing box 1, drying box 2, heating cylinder 3, reactor 4, condenser 5, filter cylinder 6, filtrate cylinder 7, distillation chamber 8, conical filter cylinder 9, crushing roller 10, feed pipe 11, rotating shaft 12, main stirring blade 13, connecting rod 14, auxiliary stirring blade 15, first bevel gear 16, second bevel gear 17, rotating shaft 18, third bevel gear 19, fourth bevel gear 20, first scraper 21, infusion pipe 22, discharge pipe 23, annular guide rail 24, internal gear 25, gear 26, pressure roller 27, stirring rod 28, second scraper 29.

[0027] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0028] The present invention will now be described in further detail with reference to the accompanying drawings.

[0029] See also Figure 1-6 As shown, this embodiment provides a continuous reaction device for straw liquefaction, including a crushing box 1, a conical filter cartridge 9 is fixed in the middle of the crushing box 1, a crushing roller 10 is rotatably matched above the conical filter cartridge 9, a drying box 2 is installed on the bottom circumference of the crushing box 1, a feed pipe 11 is fixed on the circumference of the lower part of the crushing box 1, a reactor 4 is fixed at one end of the feed pipe 11, a heating cylinder 3 is installed on the bottom circumference of the reactor 4, a condenser 5 is installed on one side of the reactor 4, a stirring assembly is rotatably matched inside the reactor 4, and a liquid delivery pipe 22 is fixedly connected between the heating cylinder 3 and the drying box 2; A filtrate cylinder 7 located on one side of the heating cylinder 3 is fixed below the drying box 2, a filter cylinder 6 is fixed in the middle above the filtrate cylinder 7, a feed pipe 23 corresponding to the top of the filter cylinder 6 is fixed at the bottom of the reactor 4, an annular guide rail 24 is fixed to the upper circumference of the filter cylinder 6, a filter residue assembly corresponding to the inner wall of the filter cylinder 6 and a stirring rod 28 corresponding to the inside of the filtrate cylinder 7 are slidably fitted in the annular guide rail 24, and a distillation chamber 8 is installed on one side of the filtrate cylinder 7.

[0030] The application of one aspect of this embodiment is as follows: when using the reaction device, firstly, the straw raw material is put into the crushing box 1 and crushed by the crushing roller 10. After the crushing, the straw powder will fall to the bottom of the crushing box 1 through the conical filter cylinder 9 and be put into the reactor 4 through the feeding pipe 11. Then, the liquid oil is heated in the heating cylinder 5 to achieve the heating of the reactor 4 by the liquid oil, and the liquefier and the catalyst are put into the reactor 4 to carry out a mixing reaction with the straw powder. After the mixing reaction is completed, the liquid oil in the heating cylinder 5 is transported to the drying box 2 through the feeding pipe 22 to heat the inner wall of the crushing box 1, so as to dry the straw raw material inside the crushing box 1 for subsequent liquefaction use. The condenser 5 is started to quickly cool the liquid product after the mixed reaction in the reactor 4 is completed, and the reaction is terminated. The cooled liquefied product is transported to the filter cylinder 6 through the feed pipe 23, and then the annular guide rail 24 is started. The annular guide rail 24 drives the filter residue assembly and the stirring rod 28 to rotate synchronously, so that the filter residue assembly is rolled and scraped along the inner wall of the filter cylinder 6, so that the liquefied product is completely and quickly filtered into the filtrate cylinder 7, and then magnesium oxide can be added to the filtrate cylinder 7 to neutralize the filtered liquefied product, and the stirring rod 28 is stirred and mixed at the same time. The mixed filtrate enters the distillation chamber 8 for distillation, and the liquefied product is obtained after the distillation is completed, thereby completing the liquefaction of the straw. It should be noted that all electrical equipment involved in this application can be powered by batteries or external power supplies.

[0031] like Figure 4 As shown, a feed port is provided at the top of the crushing box 1 of this embodiment, and the bottom of the crushing box 1 is inclined, with a gap between the bottom of the conical filter cartridge 9 and the bottom of the crushing box 1. The straw raw material is put into the crushing box 1 through the feed port, and is crushed by the crushing roller 10. The straw raw material crushed into powder falls to the bottom of the crushing box 1 through the conical filter cartridge 9, and slides to the feed pipe 11 through the bottom of the crushing box 1, which is convenient for the next step of transmission.

[0032] like Figure 1 As shown, a notch is provided in the middle of one side of the drying box 2 of this embodiment, and a feed pipe 11 is located at the notch. One end of the feed pipe 11 is fixed to one side of the upper end of the reactor 4, and the reactor 4 is located at the lower side of the drying box 2. The straw powder is transmitted to the upper part of the reactor 4 through the feed pipe 11, and the straw powder is crushed and put into the reactor 4 from top to bottom for mixing reaction.

[0033] like Figure 1 As shown, the heating cylinder 3 of this embodiment is filled with liquid oil, an oil pump is fixed at one end of the liquid infusion pipe 22, and an opening is opened at the top of the reactor 4. The liquefier and the catalyst are put into the reactor 4 through the opening, and a heating wire can be installed in the heating cylinder 3 to heat the liquid oil. The heated liquid oil heats the inside of the reactor 4, and then the straw powder in the reactor 4 is mixed with the liquefier and the catalyst for reaction.

[0034] like Figure 3-4 As shown, the stirring assembly of this embodiment includes a rotating shaft 12 rotatably engaged with the middle part of the upper side of the reactor 4, a main stirring blade 13 fixed to the peripheral side of the rotating shaft 12, three connecting rods 14 fixed to the peripheral side of the upper end of the main stirring blade 13, a first scraper 21 fixed to one side of the upper end of the connecting rod 14, an auxiliary stirring blade 15 rotatably engaged with the lower end of the connecting rod 14, a through groove opened in the middle part of the upper end of the main stirring blade 13 and the middle part of the three connecting rods 14, and a bevel gear assembly rotatably engaged in the through groove. The rotating shaft 12 is driven so that the rotating shaft 12 drives the main stirring blade 13 to rotate, and then the main stirring blade 13 drives the three connecting rods 14 and the three first scrapers 21 to rotate synchronously. At the same time, the rotating shaft 12 drives the bevel gear assembly to rotate, and the bevel gear assembly drives the three auxiliary stirring blades 15 to rotate, so that the main stirring blade 13 and the three auxiliary stirring blades 15 can fully stir the straw powder and the liquefier and the catalyst in the reactor 4. Then, the three first scrapers 21 scrape the inner wall of the reactor 4 during the rotation process to clean the liquefied product adhering to the inner wall of the reactor 4.

[0035] like Figure 4-5 As shown, specifically, the specific structure of the bevel gear assembly includes as follows: the bevel gear assembly includes a first bevel gear 16 fixed to the lower end of the rotating shaft 12, three second bevel gears 17 rotatably fitted inside the upper end of the main stirring blade 13, a rotating shaft 18 fixed to the axial center of the second bevel gear 17 and located inside one end of the connecting rod 14, a third bevel gear 19 fixed to one end of the rotating shaft 18, and a fourth bevel gear 20 rotatably fitted inside the other end of the connecting rod 14, and the fourth bevel gear 20 is fixed to the upper end of the auxiliary stirring blade 15, the first bevel gear 16 is meshed with the three second bevel gears 17, and the third bevel gear 19 is meshed with the fourth bevel gear 20.

[0036] Start the rotating shaft 12 so that the rotating shaft 12 synchronously drives the main stirring blade 13 to rotate, and then the lower end of the rotating shaft 12 drives the first bevel gear 16 to rotate, so that the first bevel gear 16 is engaged with the three second bevel gears 17, thereby driving the three rotating shafts 18 to rotate, and then the three rotating shafts 18 synchronously drive the three third bevel gears 19 to engage with the three fourth bevel gears 20, and then the fourth bevel gear 20 drives the auxiliary stirring blade 15 to rotate, so that the main stirring blade 13 drives the auxiliary stirring blade 15 to rotate while the three auxiliary stirring blades 15 can also rotate, thereby improving the efficiency of the mixing reaction of the liquefied product in the reactor 4.

[0037] like Figure 4As shown, one end of the feed pipe 23 of this embodiment passes through the bottom of the heating cylinder 3 and is connected to the reactor 4, and the other end of the feed pipe 23 is located above the filter cylinder 6. The liquefied product after the reaction is terminated is transported to the top of the filter cylinder 6 through the feed pipe 23 for delivery and filtration.

[0038] like Figure 6 As shown, the filter residue assembly of this embodiment includes a slider and a second scraper 29 that are slidably fitted on the upper side of the annular guide rail 24, an internal gear 25 fixed to the inner wall of the annular guide rail 24, a shaft body fixed to one side of the slider, a gear 26 that is rotatably fitted to one end of the shaft body, and a pressure roller 27 fixed to the lower side of the gear 26. The internal gear 25 and the gear 26 are both inclined, and the internal gear 25 is meshed with the gear 26. The pressure roller 27 and the second scraper 29 are attached to the inner wall of the filter cylinder 6, and the stirring rod 28 is fixed to the other side of the slider. When the liquefied product is put into the filter cartridge 6, the annular guide rail 24 is started, and the annular guide rail 24 drives the slider and the second scraper 29 to rotate synchronously. At this time, the slider drives the shaft and the gear 26 to move synchronously, and then the gear 26 engages with the internal gear 25. At this time, the gear 26 rotates with the lower end of the shaft, and the gear 26 drives the pressure roller 27 below to roll and rotate along the inner wall of the filter cartridge 6, thereby squeezing the liquefied product and separating the filtrate more quickly. At the same time, the second scraper 29 scrapes and brushes the residue compacted on the inner wall of the filter cartridge 6. A slag outlet is provided at the bottom of the filter cartridge 6, and the residue can be discharged through the slag outlet.

[0039] Specifically, the separated filtrate flows into the filtrate cartridge 7, at which time magnesium oxide can be added into the filtrate cartridge 7 for neutralization, and at the same time, the stirring rod 28 is driven to rotate and cooperate with the filtrate cartridge 7 to mix and stir the filtrate and magnesium oxide.

[0040] like Figure 1 As shown, a filter screen is installed between the filtrate cylinder 7 and the distillation chamber 8 of this embodiment, and a discharge port is provided below the distillation chamber 8. The mixed filtrate is filtered again through the filter screen and enters the distillation chamber 8, and then the phenol is distilled and recovered in the distillation chamber 8, thereby obtaining a liquefied product, which is discharged through the discharge port.

[0041] Specifically, the crushing roller 10 and the rotating shaft 12 in the present application can be connected to an external power source or driven by a motor.

[0042] This device is aimed at the liquefaction of corn stalks, and realizes the full process automation operation from raw material crushing, reaction mixing to product separation. In the experiment, the corn stalks were crushed into particles of 1-2 mm in size, and transported to the reactor 4 through the feed pipe 11, and evenly mixed with the liquefier ethylene glycol and 0.5 wt% sulfuric acid catalyst. In the reactor, the stirring assembly improves the mixing effect through the coordinated rotation of the main and auxiliary stirring blades, and prevents the reactants from adhering to the inner wall, ensuring that the materials participate in the reaction evenly.

[0043] The liquid oil in the heating cylinder 3 circulates at a heat transfer temperature of 200°C, heating the reactor 4 to maintain its internal temperature at 180°C for 40 minutes to complete the liquefaction reaction. Subsequently, the condenser 5 is used for rapid cooling to terminate the reaction in time and maintain the quality of the liquefied product stable. After the reaction is completed, the liquefied product enters the filter cylinder 6 through the feed pipe 23 for solid-liquid separation, the residue is scraped off by the filter residue assembly, and the filtrate enters the distillation chamber 8 for rectification to obtain the final product.

[0044] The experimental results show that the device can process 100 kg of corn stalks per hour, with a liquefaction rate of 85%. The products are mainly phenol and ethylene glycol, which has high industrial application value. Each batch of reaction takes 40 minutes, the energy consumption is 8 kWh, and the solid residue rate is only 10%. These residues can be used as agricultural fertilizers, further improving the comprehensive utilization efficiency of resources. In addition, the device adopts a closed-loop heating and heat transfer system, which effectively reduces energy consumption and supports clean production.

[0045] The excellent performance of this continuous reaction device is due to the synergistic effect of multiple designs. The crushing device improves the reaction efficiency of the raw materials, the stirring system enhances the mixing effect of the catalyst and the liquefier, and the combination of the heating cylinder and the condenser ensures the accuracy of temperature control and rapid reaction termination, thereby greatly improving the efficiency of the liquefaction process and product stability.

[0046] The present invention is not limited to the above-mentioned embodiments. Anyone should be aware that any structural changes made under the enlightenment of the present invention, and any technical solutions that are the same or similar to the present invention, fall within the protection scope of the present invention. The technology, shape, and structural parts not described in detail in the present invention are all well-known technologies.

Claims

1. A continuous reaction device for straw liquefaction, characterized in that: include: A crushing box (1), a conical filter cartridge (9) is fixed in the middle of the crushing box (1), a crushing roller (10) is rotatably mounted in the conical filter cartridge (9), the bottom of the crushing box (1) is mounted in the drying box (2), a feed pipe (11) is connected to the peripheral side of the lower part of the crushing box (1), the other end of the feed pipe (11) is connected to the reactor (4), the peripheral side of the bottom of the reactor (4) is mounted in the heating cylinder (3), a condenser (5) is installed on one side of the upper part of the reactor (4), a stirring assembly is arranged inside the reactor (4), and a liquid delivery pipe (22) is connected between the heating cylinder (3) and the drying box (2); A filtrate cartridge (7) is fixed below the drying box (2), the filtrate cartridge (7) is located on one side of the heating cartridge (3), a filter cartridge (6) is installed inside the filtrate cartridge (7), the bottom of the reactor (4) is connected to the top of the filter cartridge (6) via a feed pipe (23), an annular guide rail (24) is fixed to the upper circumference of the filter cartridge (6), a filter residue assembly and a stirring rod (28) are slidably engaged inside the annular guide rail (24), the filter residue assembly is engaged with the inner wall of the filter cartridge (6), the stirring rod (28) is arranged inside the filtrate cartridge (7), and a distillation chamber (8) is installed on one side of the filtrate cartridge (7).

2. The continuous reaction device for straw liquefaction according to claim 1, characterized in that: A feed port is provided at the top of the crushing box (1), the bottom of the crushing box (1) is arranged at an angle, and a gap is left between the bottom of the conical filter cartridge (9) and the bottom of the crushing box (1).

3. The continuous reaction device for straw liquefaction according to claim 1, characterized in that: A notch is provided in the middle of one side of the drying box (2), and a feed pipe (11) is provided through the notch. One end of the feed pipe (11) is fixed to one side of the upper end of the reactor (4), and the reactor (4) is located below one side of the drying box (2).

4. The continuous reaction device for straw liquefaction according to claim 1, characterized in that: Liquid oil is contained in the heating cylinder (3), an oil pump is fixed to one end of the liquid infusion tube (22), and an opening is provided at the top of the reactor (4).

5. The continuous reaction device for straw liquefaction according to claim 1, characterized in that: The stirring assembly comprises a rotating shaft (12) rotatably engaged with the middle part of the upper side of the reactor (4), a main stirring blade (13) fixed to the peripheral side of the rotating shaft (12), three connecting rods (14) fixed to the peripheral side of the upper end of the main stirring blade (13), a first scraper (21) fixed to one side of the upper end of the connecting rod (14), an auxiliary stirring blade (15) rotatably engaged with the lower end of the connecting rod (14), a through groove provided in the middle part of the upper end of the main stirring blade (13) and the middle part of the three connecting rods (14), and a bevel gear assembly rotatably engaged in the through groove.

6. The continuous reaction device for straw liquefaction according to claim 5, characterized in that: The bevel gear assembly comprises a first bevel gear (16) fixed to the lower end of the rotating shaft (12), three second bevel gears (17) rotatably engaged with the interior of the upper end of the main stirring blade (13), a rotating shaft (18) fixed to the axial center of the second bevel gears (17) and located inside one end of the connecting rod (14), a third bevel gear (19) fixed to one end of the rotating shaft (18), and a fourth bevel gear (20) rotatably engaged with the interior of the other end of the connecting rod (14), wherein the fourth bevel gear (20) is fixed to the upper end of the auxiliary stirring blade (15).

7. The continuous reaction device for straw liquefaction according to claim 6, characterized in that: The first bevel gear (16) and the three second bevel gears (17) are respectively meshed with each other, and the third bevel gear (19) and the fourth bevel gear (20) are meshed with each other.

8. The continuous reaction device for straw liquefaction according to claim 1, characterized in that: One end of the feed pipe (23) passes through the bottom of the heating cylinder (3) and is connected to the reactor (4), and the other end of the feed pipe (23) is located above the filter cylinder (6).

9. The continuous reaction device for straw liquefaction according to claim 1, characterized in that: The filter residue assembly comprises a slider and a second scraper (29) slidably fitted on the upper side of the annular guide rail (24), an internal gear (25) fixed to the inner wall of the annular guide rail (24), a shaft body fixed to one side of the slider, a gear (26) rotatably fitted to one end of the shaft body, and a pressure roller (27) fixed to the lower side of the gear (26), wherein the internal gear (25) and the gear (26) are both inclinedly arranged, and the internal gear (25) and the gear (26) are meshed, the pressure roller (27) and the second scraper (29) are fitted to the inner wall of the filter cylinder (6), and the stirring rod (28) is fixed to the other side of the slider.

10. The continuous reaction device for straw liquefaction according to claim 1, characterized in that: A filter screen is arranged between the filtrate cylinder (7) and the distillation chamber (8), and a liquid discharge port is arranged below the distillation chamber (8).

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