A solid-liquid separation device and separation method for lignocellulosic raw materials

Abstract

The application discloses a kind of solid-liquid separation device and separation method of lignocellulosic raw material, and the application relates to lignocellulosic processing technical field, including extrusion mechanism, the middle part position of the surface of extrusion mechanism is fixedly installed at the top of support, the top of extrusion mechanism is fixedly connected with cover body, the top of cover body is fixedly connected with feed pipe.The solid-liquid separation device and separation method of lignocellulosic raw material, reach the bottom rotation of filter cloth cylinder driven by solid discharge assembly, the liquid in the inside of filter cloth cylinder is quickly extruded, liquid is deposited at the bottom of the inside of tank and is quickly discharged through drain pipe, filter cloth cylinder forms twisted structure and quickly extrudes viscosity liquid in its inside, and filter cloth cylinder intercepts lignocellulosic solid component, and twisted filter cloth cylinder makes solid and liquid quickly and fully separated, solve the problem that solid and liquid with viscosity in lignocellulosic raw material cannot be fully and quickly separated.

Description

Technical Field

[0001] This invention relates to the field of lignocellulose processing technology, specifically to a solid-liquid separation device and method for lignocellulose raw materials. Background Technology

[0002] The dense structure of lignocellulose hinders the efficient enzymatic hydrolysis of cellulose and hemicellulose. Pretreatment helps to break down the dense structure of lignocellulose and promotes the enzymatic hydrolysis of cellulose and hemicellulose. There are various pretreatment technologies, which can be mainly classified into four types: physical, chemical, biological and comprehensive methods. During the pretreatment process, lignocellulose usually produces substances that inhibit enzymatic hydrolysis and fermentation. Repeated washing and solid-liquid separation can significantly reduce or even eliminate the residues of inhibitors in lignocellulose solid residues, which is beneficial for subsequent efficient enzymatic hydrolysis and fermentation. Existing processes usually use multi-stage spiral extrusion to achieve repeated washing, solid-liquid separation and material conveying of lignocellulose solid residues. Chinese patent number CN108854221A discloses a "Solid-Liquid Separation Device and Method for Washing Lignocellulose Solid Residue". In this patent, pretreated lignocellulose slurry is fed into the washing chamber of the vessel through the feed port. The piston is pushed to move towards the stirring paddle to squeeze the lignocellulose slurry. The liquid flows into the drain chamber through the filter screen and filter holes. The outlet is opened to discharge the waste liquid. The lignocellulose solid residue is trapped in the washing chamber. As the piston is gradually pushed forward, the residual liquid in the lignocellulose solid residue is squeezed out, thus achieving solid-liquid separation.

[0003] Existing solid-liquid separation devices and methods for lignocellulose raw materials have structural design flaws, resulting in the inability to fully and quickly separate the solids and viscous liquids inside the lignocellulose raw materials, and difficulties in collecting the solid components after solid-liquid separation. Summary of the Invention

[0004] This invention provides a solid-liquid separation device and method for lignocellulose raw materials, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a solid-liquid separation device for lignocellulose raw materials, comprising a base, wherein a support is fixedly connected to the top of the base, and further comprising:

[0006] The extrusion mechanism is fixedly mounted on the top of the support at the middle position of its surface. A cover is fixedly connected to the top of the extrusion mechanism, and a feed pipe is fixedly connected to the top of the cover. A fan is fixedly connected to the upper position of the surface of the extrusion mechanism. The extrusion mechanism is used for extruding and draining liquid from lignocellulose raw materials and guiding and collecting solid components.

[0007] The feeding mechanism is fixedly installed on the top of the cover near the middle. The feeding mechanism is used to scrape and feed the solid components inside the squeezing mechanism after solid-liquid separation.

[0008] The extrusion mechanism includes a tank, which is fixedly mounted on the top of a bracket near the center of its surface. A discharge assembly is fixedly connected to the bottom of the tank, and an opening and closing assembly is fixedly connected to the top of the discharge assembly. A filter cloth cylinder is fixedly connected to the surface of the opening and closing assembly, and a mouth assembly is fixedly connected to the upper part of the surface of the tank.

[0009] Preferably, the extrusion mechanism further includes a drain pipe, the surface of which is fixedly installed at the bottom of the tank near the edge. An air blowing assembly is fixedly connected to the inner side of the tank. The lignocellulose raw material consists of solid cellulose and a viscous liquid. In the lignocellulose production process, solid-liquid separation of the raw material is required. In the prior art, the raw material is separated by direct extrusion, but the liquid cannot be fully discharged. In this device, the raw material is fed into the interior of the filter cloth cylinder through the feed pipe. At this time, the slit assembly only supports the top of the filter cloth cylinder. After the liquid is fed, the slit assembly slits the top of the filter cloth cylinder.

[0010] Preferably, the solid waste discharge assembly includes a guide tube, the top of which is fixedly installed at the middle position of the bottom of the tank, and a material collection hole is provided at the lower position of the surface of the guide tube.

[0011] Preferably, the solid removal assembly further includes a hydraulic cylinder, the bottom of which is fixedly installed on the bottom of the inner side of the guide cylinder, the output end of which is fixedly connected to an electric turntable, and the output end of the electric turntable is fixedly connected to a discharge pipe.

[0012] Preferably, the opening and closing assembly includes a spherical shell, the bottom of which is fixedly installed at the top of the feed pipe, and the top of which is fixedly connected to the bottom of the filter cloth cylinder. The motor drives the rotating disk to rotate to a horizontal position, with the plane of the rotating disk parallel to the ground. At this time, the hemispherical shell is positioned above the rotating disk. The filter cloth cylinder contains lignocellulose raw materials. The feed pipe supports and limits the bottom of the filter cloth cylinder. The electric turntable drives the feed pipe to rotate, causing the filter cloth cylinder to twist. The filter cloth cylinder intercepts solids, while viscous liquids are discharged through the filter cloth cylinder.

[0013] Preferably, the opening and closing assembly further includes a drive motor, which is fixedly installed above the surface of the spherical shell. The output end of the drive motor is fixedly connected to a rotating disk, and a hemispherical shell is fixedly connected to one side of the rotating disk.

[0014] Preferably, the nozzle assembly includes a cylinder, the surface of which is fixedly mounted above the surface of the tank. There are two cylinders, and the two cylinders are symmetrically distributed with the tank as the center.

[0015] Preferably, the constriction assembly further includes a sphere and a fabric ring. The surface of the sphere is fixedly mounted on the output end of the cylinder, and a loop is fixedly connected to the surface of the sphere. The bottom of the fabric ring is fixedly mounted on the top of the filter cloth cylinder, and a strip of hemp cloth is fixedly connected to the inner side of the fabric ring. When the lignocellulose raw material is passed into the interior of the filter cloth cylinder, most of the liquid seeps down into the tank through the filter cloth cylinder. The cylinder drives the two spheres to move in opposite directions. The device is equipped with two loops, and the two loops are staggered inside the fabric ring. The opposite movement of the spheres causes the loops to move in opposite directions, and the fabric ring contracts the constriction. The inner side of the sphere shell is in close contact with the surface of the rotating disk.

[0016] Preferably, the air blowing assembly includes a threaded lifting device, the surface of which is fixedly installed on the inner side of the tank. An air pump is fixedly connected to the output end of the threaded lifting device, and an annular tube is fixedly connected to the output end of the air pump. A nozzle is fixedly connected to the inner side of the annular tube. There are two burlap strips, which are symmetrically distributed around the fabric ring. Two loops are both looped inside the burlap strips, and the ends of the loops are pulled out of the burlap strips and fixedly installed on the surface of the sphere. When the two loops move in opposite directions, the fabric ring of the burlap material is tightened, and the top of the filter cloth cylinder contracts in the axial direction. When the bottom of the filter cloth cylinder twists, the tightened fabric ring can prevent solid material from being discharged through the top, thus avoiding the remixing of solids and liquids.

[0017] Preferably, the feeding mechanism includes a lead screw slide, the bottom of which is fixedly installed on the top of the cover, and the output end of the lead screw slide is fixedly connected to a gate opener, the output end of which is connected to a threaded rod via a threaded connection.

[0018] Preferably, the feeding mechanism further includes a telescopic motor. The top of the telescopic motor is fixedly installed at the bottom end of the threaded rod. An elastic strip is fixedly connected to the output end of the telescopic motor. A rotating ring is fixedly connected to the top end of the elastic strip. A rubber sheet is fixedly connected to the surface of the elastic strip. After the filter cloth cylinder achieves twisting and liquid discharge, a very small amount of liquid still remains in the solid components. This liquid will prevent the solid components from falling and being collected. In this device, the opening and closing mechanism drives the threaded rod to rotate and move downward. The bottom end of the elastic strip extends to the top of the inner side of the filter cloth cylinder. At this time, the air pressure inside the cylinder has been discharged. However, the loop cannot automatically reset. The downward squeezing movement of the elastic strip acts as an external force to cause the loop to expand and reset. The telescopic motor drives the elastic strip to extend downward, causing the top of the filter cloth cylinder to be quickly reset.

[0019] A separation method for a solid-liquid separation device for lignocellulose raw materials includes the following steps:

[0020] Step 1: Feeding into the filter cloth cylinder. After the liquid is fed in, the feeding port assembly closes the top of the filter cloth cylinder. The solid discharge assembly drives the bottom of the filter cloth cylinder to rotate, and the liquid inside the filter cloth cylinder is quickly squeezed out. The liquid is deposited at the bottom of the inner side of the tank and is quickly discharged through the drain pipe. The filter cloth cylinder forms a twisted structure to quickly squeeze out the viscous liquid inside, while the filter cloth cylinder intercepts the lignocellulose solid components.

[0021] Step 2: Twisting and draining. The electric turntable drives the feed pipe to rotate, and the filter cloth cylinder is twisted. The filter cloth cylinder intercepts the solids, and the viscous liquid is discharged through the filter cloth cylinder. On this basis, the hydraulic cylinder drives the electric turntable to move upward, and the guide tube slides and supports the surface of the electric turntable, so that the twisting degree of the filter cloth cylinder is greater. The twisted filter cloth cylinder enables the solids and liquids to be fully separated.

[0022] Step 3: Rapid drying. After the filter cloth cartridge has been fully drained, it returns to its cylindrical shape. At this point, some liquid remains in the solid material, preventing it from falling. The threaded lifting device drives the air pump to move up and down. The air pump introduces hot air into the interior of the annular tube. The filter cloth cartridge is located in the middle of the inner side of the annular tube. As the annular tube moves up and down, the nozzle blows hot air onto the surface of the filter cloth cartridge. The hot air quickly dries the solid material that has been mostly dehydrated.

[0023] Step 4: Material Discharge and Collection. After the filter cloth cylinder has been fully drained, it returns to its cylindrical shape. The lignocellulose raw material is dried with hot air after solid-liquid separation. The feeding mechanism extends into the interior of the filter cloth cylinder to beat the solid raw material. The solid raw material is deposited at the position of the hemispherical shell, which drives the motor to rotate the rotating disk. The solid raw material falls into the interior of the guide tube through the feeding pipe for collection, thereby making the separation efficiency of solid raw material and viscous liquid higher.

[0024] This invention provides a solid-liquid separation device and method for lignocellulose raw materials. It possesses the following...

[0025] Beneficial effects:

[0026] 1. The solid-liquid separation device and method for the lignocellulose raw material: the solid discharge component drives the bottom of the filter cloth cylinder to rotate, the liquid inside the filter cloth cylinder is quickly squeezed out, the liquid is deposited on the bottom of the inner side of the tank and quickly discharged through the drain pipe, the filter cloth cylinder forms a twisted structure to quickly squeeze out the viscous liquid inside, while the filter cloth cylinder intercepts the solid components of lignocellulose. The twisted filter cloth cylinder enables the solid and liquid to be separated quickly and fully, solving the problem that the solid and viscous liquid inside the lignocellulose raw material cannot be separated fully and quickly.

[0027] 2. The solid-liquid separation device and method for the lignocellulose raw material: a hydraulic cylinder drives an electric turntable to move upward, and a guide cylinder provides sliding support to the surface of the electric turntable, resulting in a greater degree of torsion of the filter cloth cylinder. The twisted filter cloth cylinder allows for thorough separation of solids and liquids. This method can improve the solid-liquid separation efficiency under a single extrusion. After solid-liquid separation, the solid raw material is deposited at the position of the hemispherical shell, which drives the motor to rotate the rotating disk. The solid raw material falls through the feed pipe into the interior of the guide cylinder for collection, thereby making the separation efficiency of solid raw material and viscous liquid higher.

[0028] 3. The solid-liquid separation device and method for the lignocellulose raw material: When the rotating disk is in a horizontal state, the hemispherical shell is at the top of the rotating disk. At this time, the bottom of the filter cloth tube is rotated by the spherical shell, the top of the filter cloth tube is constricted, and the lower part of the filter cloth tube is restricted by the spherical shell. The rotation of the filter cloth tube causes the viscous liquid to be squeezed out. The cooperation between the rotating disk and the spherical shell causes the raw material to be intercepted, and the solid and liquid are fully separated. The bottom of the inner side of the filter cloth tube squeezes the hemispherical shell, and the solid components are fully squeezed, resulting in a higher liquid discharge rate.

[0029] 4. The solid-liquid separation device and method for the lignocellulose raw material: After the filter cloth cylinder is fully drained, it returns to its cylindrical shape. At this time, some liquid in the solid material still prevents it from falling. The screw lifter drives the air pump to move up and down. The air pump introduces hot air into the interior of the annular tube. The filter cloth cylinder is located in the middle of the inner side of the annular tube. When the annular tube moves up and down, the nozzle blows hot air onto the surface of the filter cloth cylinder. The hot air dries the solid material that has been mostly dehydrated quickly, thereby making the solid raw material collection efficiency higher.

[0030] 5. The solid-liquid separation device and method for this lignocellulose raw material involves the lifting and moving of an annular tube and the rapid drying of solid impurities by a nozzle. However, some solid impurities may still fail to fall. A telescopic motor drives an elastic strip to rotate, and a rotating ring rotates on the surface of the telescopic motor. The elastic strip allows solid impurities on the inner side of the filter cloth cylinder to fall quickly. A rubber sheet beats the filter cloth cylinder, and a screw slide allows the elastic strip to centrifugally beat the filter cloth cylinder, thereby promoting the discharge of solid impurities. This solves the problem of difficulty in collecting and discharging solid components after solid-liquid separation of lignocellulose raw materials. Attached Figure Description

[0031] Figure 1 This is a flowchart of the separation method of the solid-liquid separation device for lignocellulose raw materials of the present invention;

[0032] Figure 2 This is a perspective view of the solid-liquid separation device for lignocellulose raw materials according to the present invention.

[0033] Figure 3This is a perspective view of the interior of the solid-liquid separation device for lignocellulose raw materials according to the present invention.

[0034] Figure 4 This is a schematic diagram of the solid-liquid extrusion mechanism of the present invention;

[0035] Figure 5 This is a schematic diagram of the structure of the anti-slip assembly of the present invention;

[0036] Figure 6 This is a schematic diagram of the opening and closing component of the present invention;

[0037] Figure 7 This is a schematic diagram of the structure of the ferrule assembly of the present invention;

[0038] Figure 8 This is a schematic diagram of the air blowing assembly of the present invention;

[0039] Figure 9 This is a schematic diagram of the feeding mechanism of the present invention.

[0040] In the diagram: 1. Base; 2. Support; 3. Extrusion mechanism; 31. Tank; 32. Drain pipe; 33. Solid discharge assembly; 331. Guide cylinder; 332. Material receiving hole; 333. Hydraulic cylinder; 334. Electric turntable; 335. Feeding pipe; 34. Opening and closing assembly; 341. Spherical shell; 342. Drive motor; 343. Rotating disk; 344. Hemispherical shell; 35. Filter cloth cylinder; 36. Cloth assembly; 361. Cylinder; 362. Sphere; 363. Rope; 364. Fabric ring; 365. Linen strip; 37. Air blowing assembly; 371. Threaded lifting device; 372. Air pump; 373. Ring pipe; 374. Nozzle; 4. Fan; 5. Cover; 6. Feed pipe; 7. Discharge mechanism; 71. Screw slide; 72. Gate opener; 73. Threaded rod; 74. Telescopic motor; 75. Elastic strip; 76. Rotating ring; 77. Rubber sheet. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] First embodiment: as follows Figures 1-4 As shown, the present invention provides a technical solution: a solid-liquid separation device and method for lignocellulose raw materials, including a base 1, a support 2 fixedly connected to the top of the base 1, and further comprising:

[0043] The extrusion mechanism 3 is fixedly installed on the top of the support 2 at the middle position of the surface of the extrusion mechanism 3. The top of the extrusion mechanism 3 is fixedly connected to the cover 5. The top of the cover 5 is fixedly connected to the feed pipe 6. The blower 4 is fixedly connected to the upper position of the surface of the extrusion mechanism 3. The extrusion mechanism 3 is used for extruding and draining the lignocellulose raw material and guiding and collecting the solid components.

[0044] The feeding mechanism 7 is fixedly installed on the top of the cover 5 near the middle. The feeding mechanism 7 is used to scrape and feed the solid components inside the squeezing mechanism 3 after solid-liquid separation.

[0045] The extrusion mechanism 3 includes a tank 31, which is fixedly installed on the top of the support 2 near the middle of the surface of the tank 31. A discharge assembly 33 is fixedly connected to the bottom of the tank 31. An opening and closing assembly 34 is fixedly connected to the top of the discharge assembly 33. A filter cloth cylinder 35 is fixedly connected to the surface of the opening and closing assembly 34. A mouth assembly 36 is fixedly connected to the upper part of the surface of the tank 31.

[0046] The extrusion mechanism 3 also includes a drain pipe 32, the surface of which is fixedly installed at the bottom of the tank 31 near the edge, and an air blowing assembly 37 is fixedly connected to the inner side of the tank 31.

[0047] In use, lignocellulose raw materials consist of solid cellulose and viscous liquid. During lignocellulose production, solid-liquid separation is required. Existing technologies use direct extrusion to separate the raw materials, but the liquid cannot be fully discharged. In this device, the raw material is fed into the filter cloth cylinder 35 through the feed pipe 6. At this point, the constriction assembly 36 only supports the top of the filter cloth cylinder 35. After the liquid is fed in, the constriction assembly 36 constricts the top of the filter cloth cylinder 35, and the solid discharge assembly 33 drives the bottom of the filter cloth cylinder 35 to rotate. The liquid inside the filter cloth cylinder 35 is quickly squeezed out and deposited at the bottom of the inner side of the tank 31, then quickly discharged through the drain pipe 32. The filter cloth cylinder 35 forms a twisted structure to quickly squeeze out the viscous liquid inside, while the filter cloth cylinder 35 intercepts the solid components of lignocellulose. The twisted filter cloth cylinder 35 allows for rapid and complete separation of the solid and liquid, solving the problem of insufficient and rapid separation of the solid and viscous liquid inside the lignocellulose raw material.

[0048] Second embodiment: as follows Figures 4-6As shown, the solid discharge assembly 33 includes a guide cylinder 331, the top of which is fixedly installed at the middle of the bottom of the tank body 31. A material intake hole 332 is provided at the lower part of the surface of the guide cylinder 331. The solid discharge assembly 33 also includes a hydraulic cylinder 333, the bottom of which is fixedly installed at the bottom of the inner side of the guide cylinder 331. An electric turntable 334 is fixedly connected to the output end of the hydraulic cylinder 333. A discharge pipe 335 is fixedly connected to the output end of the electric turntable 334. The opening and closing assembly 34 includes a spherical shell 341, the bottom of which is fixedly installed at the top of the discharge pipe 335. The top of the spherical shell 341 is fixedly connected to the bottom end of the filter cloth cylinder 35. The opening and closing assembly 34 also includes a drive motor 342, which is fixedly installed at the upper part of the surface of the spherical shell 341. A rotating disk 343 is fixedly connected to the output end of the drive motor 342. A hemispherical shell 344 is fixedly connected to one side of the rotating disk 343.

[0049] In use, the motor 342 drives the rotating disk 343 to rotate to a horizontal position, with the plane of the rotating disk 343 parallel to the ground. At this time, the hemispherical shell 344 is positioned above the rotating disk 343. The filter cloth cylinder 35 contains lignocellulose raw material. The feed pipe 335 supports and limits the bottom of the filter cloth cylinder 35. The electric turntable 334 drives the feed pipe 335 to rotate, causing the filter cloth cylinder 35 to twist. The filter cloth cylinder 35 intercepts solids, while viscous liquids are discharged through it. Furthermore, the hydraulic cylinder 333 drives the electric turntable... The platform 334 moves upward, and the guide tube 331 provides sliding support to the surface of the electric turntable 334, which makes the filter cloth tube 35 more torsional. The twisted filter cloth tube 35 enables the solid and liquid to be fully separated. This method can improve the solid-liquid separation efficiency under one extrusion. After solid-liquid separation, the solid raw material is deposited at the position of the hemispherical shell 344, which drives the motor 342 to drive the rotating disk 343 to rotate. The solid raw material falls into the interior of the guide tube 331 through the feed pipe 335 for collection, thereby making the separation efficiency of solid raw material and viscous liquid higher.

[0050] Third embodiment: as follows Figure 4 , Figure 6 , Figure 7As shown, the bottom of the spherical shell 341 is fixedly installed at the top of the feed pipe 335, and the top of the spherical shell 341 is fixedly connected to the bottom of the filter cloth cylinder 35. The opening and closing assembly 34 also includes a drive motor 342, which is fixedly installed above the surface of the spherical shell 341. The output end of the drive motor 342 is fixedly connected to a rotating disk 343, and a hemispherical shell 344 is fixedly connected to one side of the rotating disk 343. The mouth-binding assembly 36 includes a cylinder 361, the surface of which is fixedly installed above the surface of the tank 31. There are two cylinders 361, and the two cylinders 361 are symmetrically distributed with the tank 31 as the center. The mouth-binding assembly 36 also includes a sphere 362 and a cloth ring 364. The surface of the sphere 362 is fixedly installed at the output end of the cylinder 361, and a rope 363 is fixedly connected to the surface of the sphere 362. The bottom of the cloth ring 364 is fixedly installed at the top of the filter cloth cylinder 35.

[0051] In use, the lignocellulose raw material is introduced into the filter cloth cylinder 35. At this time, most of the liquid seeps down into the tank 31 through the filter cloth cylinder 35. The cylinder 361 drives the two balls 362 to move in opposite directions. The device is equipped with two loops 363, which are staggered inside the cloth ring 364. The opposite movement of the balls 362 causes the loops 363 to move in opposite directions, and the cloth ring 364 contracts. The inner side of the ball shell 341 is in close contact with the surface of the rotating disk 343. The rotating disk 343 is in the water. In the flat state, the hemispherical shell 344 is at the top of the rotating disk 343. At this time, the bottom of the filter cloth cylinder 35 is rotated by the spherical shell 341. The top of the filter cloth cylinder 35 is constricted, and the lower position of the filter cloth cylinder 35 is restricted by the spherical shell 341. The rotation of the filter cloth cylinder 35 causes the viscous liquid to be squeezed out. The cooperation between the rotating disk 343 and the spherical shell 341 causes the raw material to be intercepted, and the solid and liquid are fully separated. The bottom of the inner side of the filter cloth cylinder 35 squeezes the hemispherical shell 344, and the solid components are fully squeezed, resulting in a higher liquid discharge rate.

[0052] Fourth embodiment: as Figure 4 , Figure 7 , Figure 8As shown, the surface of cylinder 361 is fixedly installed on the upper part of the surface of tank 31. There are two cylinders 361, and the two cylinders 361 are symmetrically distributed with tank 31 as the center. The nozzle assembly 36 also includes a ball 362 and a cloth ring 364. The surface of ball 362 is fixedly installed on the output end of cylinder 361. A rope 363 is fixedly connected to the surface of ball 362. The bottom of cloth ring 364 is fixedly installed on the top of filter cloth cylinder 35. A burlap strip 365 is fixedly connected to the inner side of cloth ring 364. The air blowing assembly 37 includes a threaded lifting device 371. The surface of threaded lifting device 371 is fixedly installed on the inner side of tank 31. An air pump 372 is fixedly connected to the output end of threaded lifting device 371. An annular tube 373 is fixedly connected to the output end of air pump 372. A nozzle 374 is fixedly connected to the inner side of annular tube 373.

[0053] In use, there are two burlap strips 365, symmetrically distributed around the fabric ring 364. Two loops 363 are fitted inside the burlap strips 365, with the ends of the loops 363 extending out of the burlap strips 365 and fixedly installed on the surface of the sphere 362. When the two loops 363 move in opposite directions, the burlap fabric ring 364 is constricted, causing the top of the filter cloth cylinder 35 to contract axially. When the bottom of the filter cloth cylinder 35 twists, the constricted fabric ring 364 prevents solid material from being discharged through the top, thus avoiding the mixing of solids and liquids. After remixing and sufficient drainage of the filter cloth cylinder 35, the filter cloth cylinder 35 returns to its cylindrical shape. At this time, some liquid remains in the solid material, preventing it from falling. The threaded lifting device 371 drives the air pump 372 to move up and down. The air pump 372 introduces hot air into the interior of the annular tube 373. The filter cloth cylinder 35 is located in the middle of the inner side of the annular tube 373. When the annular tube 373 moves up and down, the nozzle 374 blows hot air onto the surface of the filter cloth cylinder 35. The hot air quickly dries the mostly dehydrated solid material, thereby increasing the efficiency of solid raw material collection.

[0054] Fifth embodiment: as follows Figure 7 , Figure 9 As shown, the nozzle assembly 36 includes a cylinder 361, the surface of which is fixedly mounted on the upper part of the surface of the tank 31. There are two cylinders 361, and the two cylinders 361 are symmetrically distributed with the tank 31 as the center. The nozzle assembly 36 also includes a ball 362 and a cloth ring 364. The surface of the ball 362 is fixedly mounted on the output end of the cylinder 361. A rope 363 is fixedly connected to the surface of the ball 362. The bottom of the cloth ring 364 is fixedly mounted on the top of the filter cloth cylinder 35. A burlap strip 365 is fixedly connected to the inner side of the cloth ring 364.

[0055] The surface of the threaded lifting device 371 is fixedly installed on the inner side of the tank body 31. The output end of the threaded lifting device 371 is fixedly connected to the air pump 372. The output end of the air pump 372 is fixedly connected to the annular pipe 373. The inner side of the annular pipe 373 is fixedly connected to the nozzle 374.

[0056] The feeding mechanism 7 includes a lead screw slide 71, the bottom of which is fixedly installed on the top of the cover 5. The output end of the lead screw slide 71 is fixedly connected to a gate opener 72, and the output end of the gate opener 72 is threadedly connected to a threaded rod 73. The feeding mechanism 7 also includes a telescopic motor 74, the top of which is fixedly installed on the bottom of the threaded rod 73. The output end of the telescopic motor 74 is fixedly connected to an elastic strip 75, the top of the elastic strip 75 is fixedly connected to a rotating ring 76, and a rubber sheet 77 is fixedly connected to the surface of the elastic strip 75.

[0057] During use, after the filter cloth cylinder 35 achieves twisting and liquid discharge, a very small amount of liquid remains in the solid components. This liquid prevents the solid components from falling and being collected. In this device, the hoist 72 drives the threaded rod 73 to rotate and move downwards, and the bottom end of the elastic strip 75 extends to the top of the inner side of the filter cloth cylinder 35. At this time, the air pressure inside the cylinder 361 has been discharged, but the loop 363 cannot automatically reset. The downward squeezing movement of the elastic strip 75 acts as an external force to cause the loop 363 to expand and reset. The telescopic motor 74 drives the elastic strip 75 to extend downwards, causing the top of the filter cloth cylinder 35 to be quickly reset. The annular tube 37 3. Lifting and moving, the nozzle 374 quickly dries solid impurities, but some solid impurities still cannot fall. The telescopic motor 74 drives the elastic strip 75 to rotate, and the rotating ring 76 rotates on the surface of the telescopic motor 74. The elastic strip 75 allows the solid impurities on the inner side of the filter cloth cylinder 35 to fall quickly. The rubber sheet 77 has a beating effect on the filter cloth cylinder 35. The screw slide 71 allows the elastic strip 75 to centrifugally beat the filter cloth cylinder 35, thereby promoting the discharge of solid impurities. This solves the problem of difficulty in discharging and collecting solid components after solid-liquid separation of lignocellulose raw materials.

[0058] Sixth embodiment: as follows Figure 1-9 As shown, a separation method for a solid-liquid separation device for lignocellulose raw materials includes the following steps:

[0059] Step 1: Feeding. The bottom end of the threaded tube 74 is directly above the rubber cylinder 54 and the filter cloth cylinder 55. The threaded tube 74 conveys the lignocellulose raw material into the interior of the filter cloth cylinder 55. The screw slide 72 drives the threaded tube 74 to move closer to the edge. Driven by the gate opener 73, the threaded tube 74 moves downward to the position between the filter cloth cylinder 55 and the rubber cylinder 54.

[0060] Step 2, Closing: The two plastic shells 533 are staggered vertically. The hydraulic cylinder 531 pulls the rope 532 into the extension tube 52, causing the plastic shells 533 to contract. Due to the elasticity of the rubber tube 54, the contraction of the rope 532 causes the top of the rubber tube 54 to tighten. The filter cloth tube 55 is made of soft and deformable material. When the rope 532 slides and moves in the opposite direction in the opening 534, the top of the filter cloth tube 55 is tightened. The extension tube 52 provides space for the rope 532 to move.

[0061] Step 3: Compression. The top of the filter cloth cylinder 55 is pulled and contracted. At this time, the second valve body 465 is in the closed state. The second electric turntable 462 drives the inner rotating tube 463 to rotate, so that the bottom of the filter cloth cylinder 55 is wound and tightened. At this time, both the top and bottom of the filter cloth cylinder 55 are in the tightened state, and the bottom of the filter cloth cylinder 55 has a spiral winding tendency. The liquid is quickly squeezed into the interior of the rubber cylinder 54.

[0062] Step 4, discharge: The belt assembly 53 tightens the top of the filter cloth cylinder 55, and the inner discharge assembly 46 drives the bottom of the filter cloth cylinder 55 to rotate. The liquid components inside the filter cloth cylinder 55 are pushed into the rubber cylinder 54. At this time, the outer discharge assembly 45 is in the open state, and the liquid components flow into the discharge shell 41. The pump body connected to the bottom of the discharge shell 41 draws away the liquid components, and the solid impurities are discharged through the inner discharge assembly 46.

[0063] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A solid-liquid separation device for lignocellulosic feedstock comprising a base (1), characterized in that, The base (1) is fixedly connected to the top of a bracket (2), and also includes: The extrusion mechanism (3) is fixedly installed on the top of the support (2) at the middle position of the surface of the extrusion mechanism (3). A cover (5) is fixedly connected to the top of the extrusion mechanism (3). A feed pipe (6) is fixedly connected to the top of the cover (5). A fan (4) is fixedly connected to the upper position of the surface of the extrusion mechanism (3). The extrusion mechanism (3) is used for extruding and draining lignocellulosic raw materials and guiding and collecting solid components. The feeding mechanism (7) is fixedly installed at the top of the cover (5) near the middle. The feeding mechanism (7) is used to scrape and feed the solid components inside the extrusion mechanism (3) after solid-liquid separation. The extrusion mechanism (3) includes a tank (31), the surface of which is fixedly mounted on the top of the bracket (2) near the middle, a drain assembly (33) is fixedly connected to the bottom of the tank (31), an opening and closing assembly (34) is fixedly connected to the top of the drain assembly (33), a filter cloth cylinder (35) is fixedly connected to the surface of the opening and closing assembly (34), and a mouth assembly (36) is fixedly connected to the upper part of the surface of the tank (31). The mouth assembly (36) includes a cylinder (361), the surface of which is fixedly mounted above the surface of the tank (31). There are two cylinders (361), and the two cylinders (361) are symmetrically distributed with the tank (31) as the center. The spool assembly (36) also includes a sphere (362) and a fabric ring (364). The surface of the sphere (362) is fixedly mounted on the output end of the cylinder (361). A rope (363) is fixedly connected to the surface of the sphere (362). The bottom of the fabric ring (364) is fixedly mounted on the top of the filter cloth cylinder (35). A burlap strip (365) is fixedly connected to the inner side of the fabric ring (364).

2. The solid-liquid separation device for lignocellulose raw materials according to claim 1, characterized in that: The extrusion mechanism (3) also includes a drain pipe (32), the surface of which is fixedly installed on the bottom of the tank (31) near the edge, and an air blowing assembly (37) is fixedly connected to the inner side of the tank (31).

3. The solid-liquid separation device for lignocellulose raw materials according to claim 2, characterized in that: The solid discharge assembly (33) includes a guide cylinder (331), the top of which is fixedly installed at the middle position of the bottom of the tank (31), and a material extraction hole (332) is provided at the lower position of the surface of the guide cylinder (331).

4. The solid-liquid separation device for lignocellulose raw materials according to claim 3, characterized in that: The solid removal assembly (33) also includes a hydraulic cylinder (333), the bottom of which is fixedly installed on the bottom of the inner side of the guide tube (331), the output end of which is fixedly connected to an electric turntable (334), and the output end of which is fixedly connected to a feed pipe (335).

5. The solid-liquid separation device for lignocellulose raw materials according to claim 4, characterized in that: The opening and closing assembly (34) includes a spherical shell (341), the bottom of which is fixedly installed at the top of the feed pipe (335), and the top of which is fixedly connected to the bottom of the filter cloth cylinder (35).

6. The solid-liquid separation device for lignocellulose raw materials according to claim 5, characterized in that: The opening and closing assembly (34) also includes a drive motor (342), which is fixedly installed above the surface of the spherical shell (341). The output end of the drive motor (342) is fixedly connected to a rotating disk (343), and a hemispherical shell (344) is fixedly connected to one side of the rotating disk (343).

7. The solid-liquid separation device for lignocellulose raw materials according to claim 6, characterized in that: The air blowing assembly (37) includes a threaded lifter (371), the surface of which is fixedly installed on the inner side of the tank (31). An air pump (372) is fixedly connected to the output end of the threaded lifter (371), and an annular tube (373) is fixedly connected to the output end of the air pump (372). A nozzle (374) is fixedly connected to the inner side of the annular tube (373).

8. The separation method of the solid-liquid separation device for lignocellulose raw materials according to claim 7, characterized in that: Includes the following steps: Step 1: Feeding into the filter cloth cylinder (35) through the feed pipe (6). After the liquid is fed in, the feeding assembly (36) binds the top of the filter cloth cylinder (35), and the solid discharge assembly (33) drives the bottom of the filter cloth cylinder (35) to rotate. The liquid inside the filter cloth cylinder (35) is quickly squeezed out and deposited on the bottom of the inner side of the tank (31) and quickly discharged through the drain pipe (32). The filter cloth cylinder (35) forms a twisted structure to quickly squeeze out the viscous liquid inside, while the filter cloth cylinder (35) intercepts the lignocellulose solid components. Step 2: Twisting and draining. The electric turntable (334) drives the feed pipe (335) to rotate, and the filter cloth cylinder (35) is twisted. The filter cloth cylinder (35) intercepts the solids, and the viscous liquid is discharged through the filter cloth cylinder (35). On this basis, the hydraulic cylinder (333) drives the electric turntable (334) to move upward. The guide cylinder (331) provides sliding support to the surface of the electric turntable (334), so that the twisting degree of the filter cloth cylinder (35) is greater. The twisted filter cloth cylinder (35) enables the solids and liquids to be fully separated. Step 3: Rapid drying. After the filter cloth cylinder (35) has been fully drained, it returns to its cylindrical shape. At this time, some liquid remains in the solid material, preventing it from falling. The threaded lifting device (371) drives the air pump (372) to move up and down. The air pump (372) introduces hot air into the interior of the annular tube (373). The filter cloth cylinder (35) is located in the middle of the inner side of the annular tube (373). When the annular tube (373) moves up and down, the nozzle (374) blows hot air onto the surface of the filter cloth cylinder (35). The hot air causes the solid material, which has been mostly dehydrated, to be dried quickly. Step 4: Discharge and collection. After the filter cloth cylinder (35) has fully discharged the liquid, the filter cloth cylinder (35) returns to its cylindrical shape. After the solid-liquid separation of the lignocellulose raw material, it is dried by hot air. The feeding mechanism (7) extends into the interior of the filter cloth cylinder (35) to beat the solid raw material. The solid raw material is deposited at the position of the hemispherical shell (344). The motor (342) drives the rotating disk (343) to rotate. The solid raw material falls into the interior of the guide tube (331) through the feeding pipe (335) for collection, thereby making the separation efficiency of solid raw material and viscous liquid higher.

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