Production method of high-purity konjac glucomannan

Abstract

The invention discloses a production method of high-purity konjac glucomannan. The production method comprises the following steps: raw material treatment, konjac glucomannan extraction, solid-liquid separation and purification, drying and crushing, and finished product treatment and packaging. Wherein the step of solid-liquid separation and purification comprises a washing step, a two-section washing device is adopted for washing to remove inorganic salt, pigment and sugar, and the two-section washing device comprises a base platform, a controller, an ethanol washing mechanism and a water washing mechanism; the controller is fixedly installed on the right rear portion of the top end of the base platform. The ethanol washing mechanism is arranged on the left side of the top end of the base platform; the water washing mechanism is arranged on the right side of the top end of the base platform. According to the production method of the high-purity konjac glucomannan, the physicochemical characteristics of ethanol hydrophobicity and hydrophilicity of the konjac glucomannan are utilized, an ethanol and water mixing integrated automatic washing process is introduced, and water-soluble impurities and fat-soluble impurities are efficiently removed through multi-stage washing mixing and layered filtering, so that the removal rate of the soluble impurities is increased, and the residual quantity of solid particles is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of konjac glucomannan processing, in particular to a production method of high-purity konjac glucomannan. Background Art

[0002] Konjac gum is a natural high-molecular-weight polysaccharide extracted from the tubers of the konjac plant. Its main component, glucomannan, gives it high water solubility, gelling properties, and water absorption. It is widely used in food (such as thickeners and low-calorie food ingredients), medicine (dietary fiber, pharmaceutical excipients), cosmetics, and industrial fields. Its processing uses konjac tubers as raw materials and goes through steps such as cleaning, crushing, detoxification, drying, grinding, and purification. The traditional process uses water washing and centrifugation to remove impurities. Modern technologies combine ultrasonic extraction, membrane separation, and spray drying to improve efficiency and purity. Konjac flour, purified powder, and modified products can be produced. In the prior art, the washing method in the traditional konjac glucomannan processing steps is difficult to fully separate impurities from konjac glucomannan. Konjac glucomannan itself has high viscosity characteristics and easily forms a colloidal network structure in the solution, which hinders the diffusion and dissolution of impurities. The stirring intensity and mixing uniformity of traditional equipment are insufficient, resulting in uneven concentration of washing liquid in some areas, so that soluble impurities remain inside the colloid, which is prone to problems such as decreased separation efficiency and high solid residue rate. Summary of the Invention

[0003] The object of the present invention is to provide a method for producing high-purity konjac gum, so as to at least solve the problems mentioned in the above-mentioned background technology.

[0004] To achieve the above object, the present invention provides the following technical scheme: a production method of high-purity konjac glucomannan, comprising: Raw material processing: washing and peeling → slicing and crushing → konjac gum extraction; Solid-liquid separation and purification: coarse filtration to remove impurities → ethanol precipitation → washing with a two-stage washing device to remove inorganic salts, pigments and sugars → drying and crushing → finished product processing and packaging.

[0005] The two-stage washing device includes: a base platform, a controller, an ethanol washing mechanism and a water washing mechanism; the controller is fixedly installed at the right rear of the top of the base platform; the ethanol washing mechanism is arranged on the left side of the top of the base platform; and the water washing mechanism is arranged on the right side of the top of the base platform.

[0006] Preferably, the ethanol washing mechanism includes: a double-layer platform, a first mixing device, a first pump body, a centrifugal filter, a filtering device, a second pump body and a conveying component; the double-layer platform is fixedly installed at the left rear of the top of the base platform; the first mixing device is installed at the top of the base platform and is located on the front side of the double-layer platform, and the first mixing device is electrically connected to the controller; the first pump body is installed at the top of the base platform and is located on the left side of the first mixing device, the feed port of the first pump body is connected to the discharge port of the first mixing device, and the first pump body is electrically connected to the controller; the centrifugal filter is installed at the top of the double-layer platform, and the feed port of the centrifugal filter is connected to the first The discharge port of the pump body is connected through a pipeline, and the centrifugal filter and the controller are electrically connected; the filtering device is installed at the top of the base platform and is located below the double-layer platform, the liquid discharge port of the centrifugal filter is connected to the liquid recovery port of the filtering device through a pipeline, and the filtering device and the controller are electrically connected; the second pump body is installed at the top of the base platform and is located on the right side of the filtering device, the liquid inlet of the second pump body is connected to the liquid outlet of the filtering device through a pipeline, the liquid outlet of the second pump body is connected to the liquid addition port of the first mixing device through a pipeline, and the second pump body and the controller are electrically connected; the conveying component is arranged on the rear side of the first mixing device.

[0007] Preferably, the conveying component includes: a support frame, a first screw assembly, a first motor, a first limit assembly, a mounting seat and a feed hopper; the support frame is fixedly mounted on the top of the base platform in the left and right directions and is located on the rear side of the first mixing device; the number of the first screw assemblies is two, and the two first screw assemblies are respectively mounted on the front and rear sides of the support frame through bearing seats; the number of the first motors is two, and the two first motors are respectively mounted on the front and rear right ends of the support frame through brackets, and the rotating ends of the two first motors are respectively connected to the screw shafts of the front and rear two first screw assemblies, and the first motor is electrically connected to the controller; the number of the first limit assemblies is two, and the two first limit assemblies are respectively mounted on the front and rear right ends of the top of the support frame in the left and right directions; the number of the mounting seats is two, and the two mounting seats are respectively mounted on the top of the limit ends of the front and rear first limit assemblies, and the two mounting seats are respectively connected to the screw nuts of the two first screw assemblies; the feed hopper is fixedly mounted on the inner side of the front and rear two mounting seats; wherein a switch unit is installed below the discharge port of the feed hopper Preferably, the conveying component also includes: an installation truss, a receiving trough drum, an electric control valve pipe, a first lifting conveyor, a telescopic cylinder, a limiting slide, a vertical mounting frame, a rotating rod, a first electric telescopic rod and a connecting frame; the conveying component also includes: an installation truss is installed in the middle of the inner side of the support frame along the front and rear directions; the number of the receiving trough drums is two, and the two receiving trough drums are respectively installed at the left and right ends of the inner side of the support frame; the electric control valve pipe is installed at the bottom of the left receiving trough drum and is connected to the receiving trough drum, the electric control valve pipe is connected to the liquid inlet of the first pump body through a pipeline, and the electric control valve pipe is electrically connected to the controller; the first lifting conveyor is installed at the top of the base platform through a bracket and is located on the right side of the support frame, the feed port of the first lifting conveyor is connected to the right receiving trough drum, and the first lifting conveyor is electrically connected to the controller; the number of the telescopic cylinders is two, and the two telescopic cylinders are respectively inserted into the top of the inner cavity of the left and right receiving trough drums; the number of the limiting slides is two, and the two limiting The positioning slides are respectively installed in the middle part of the outer side of the left and right telescopic cylinders in the up and down directions; the vertical mounting frame is fixedly installed on the top of the mounting truss in the up and down directions; the number of the rotating rods is two groups, and the number of the rotating rods in each group is two, and one end of the two groups of rotating rods is rotatably connected to the upper and lower ends of the left and right sides of the top of the vertical mounting frame through bearing seats; the number of the first electric telescopic rods is two groups, and the number of the first electric telescopic rods in each group is two, and one end of the two groups of the first electric telescopic rods is rotatably connected to the upper and lower ends of the left and right sides of the bottom end of the vertical mounting frame through bearing seats, and the other ends of the left and right groups of the first electric telescopic rods are rotatably connected to the front and rear sides of the outer surface of the bottom rotating rods in the left and right groups through bearing seats, and the first electric telescopic rod is electrically connected to the controller; the number of the connecting frames is two, and the two connecting frames are rotatably connected to the inner sides of the other ends of the left and right groups of rotating rods through bearings in the up and down directions, and the outer ends of the two connecting frames are respectively inserted into the inner cavities of the left and right limiting slides.

[0008] Preferably, the water washing mechanism includes: a second mixing device, a supply device, a second lifting conveyor, a third pump body and a filter component; the second mixing device is fixedly installed on the right side of the base platform in the up and down directions, the discharge port of the first lifting conveyor is connected to the feeding port on the top left side of the second mixing device, and the second mixing device is electrically connected to the controller; the supply device is installed at the top of the base platform and is located on the left side of the second mixing device, the liquid outlet of the supply device is connected to the liquid inlet of the second mixing device through a pipeline, and the supply device is electrically connected to the controller; the second lifting conveyor is installed at the top of the base platform and is located on the front side of the second mixing device, the discharge port of the second lifting conveyor is connected to the feed port of the second mixing device, and the second lifting conveyor is electrically connected to the controller; the third pump body is installed at the top of the base platform and is located on the right side of the second mixing device, the feed port of the third pump body is connected to the discharge port of the second mixing device through a pipeline, and the third pump body is electrically connected to the controller; the filter component is arranged on the right side of the third pump body.

[0009] Preferably, the filtering component comprises: a receiving bucket, a material cart, a box-type shell, a filter plate, a second limiting assembly, a first mounting plate, a second electric telescopic rod, a third motor, a second mounting plate, a mounting spring and a cleaning scraper; the receiving bucket is fixedly mounted on the top of the base platform and is located on the right side of the third pump body; the material cart can be detachably mounted on the bottom of the discharge port of the receiving bucket; the box-type shell is mounted on the top of the receiving bucket and communicates with the inner cavity of the receiving bucket, and the discharge port of the third pump body is connected to the opening at the top of the inner cavity of the box-type shell through a pipeline; the number of the filter plates is two, and the two filter plates are respectively mounted on the upper and lower sides of the middle of the inner cavity of the box-type shell; the number of the second limiting assemblies is two groups, and the number of the second limiting assemblies in each group is two, and the two groups of the second limiting assemblies are respectively mounted on the inner wall of the box-type shell in the left and right directions and are located on the front and rear sides above the filter plate; the number of the first mounting plates is two groups, and the number of the first mounting plates in each group is two, and the two groups of the first mounting plates are respectively mounted on the inner sides of the limiting ends of the two groups of second limiting assemblies; the second electric telescopic rod There are two groups of second electric telescopic rods, each group has two second electric telescopic rods, the two groups of second electric telescopic rods are respectively mounted on the inner wall of the box-type housing and located on the inner sides of the two groups of second limit assemblies, the telescopic ends of the two groups of second electric telescopic rods are respectively connected to the two groups of first mounting plates, and the second electric telescopic rods are electrically connected to the controller; there are two groups of third motors, each group has two third motors, the two groups of third motors are respectively mounted on the outer sides of the two groups of first mounting plates, and the third motors are electrically connected to the controller; there are two second mounting plates, the two second mounting plates are respectively mounted on the inner sides of the rotating ends of the two groups of third motors along the front-to-back direction; there are two groups of mounting springs, each group has two mounting springs, the two groups of mounting springs are respectively mounted on the front and rear ends of the right sides of the two second mounting plates; there are two groups of cleaning scrapers, each group has two cleaning scrapers, the two groups of cleaning scrapers are respectively mounted on the right sides of the two groups of second mounting plates; wherein, auxiliary cleaning units are installed on the front and rear ends of the right sides of the upper and lower filter plates.

[0010] Preferably, the auxiliary cleaning unit includes: a mounting frame, a slot frame, a fourth motor, an insertion rod, a knocking head, a connecting spring, a connecting rod and an eccentric wheel; the mounting frame is fixedly mounted on the inner wall of the box-type shell and is located above the right side of the filter plate; the slot frame is mounted on the left bottom end of the mounting frame; the fourth motor is mounted on the inner upper left corner of the mounting frame, the rotating end of the fourth motor extends out of the outside of the mounting frame, and the fourth motor and the controller are electrically connected; the insertion rod is inserted into the top of the inner cavity of the slot frame in the up and down directions; the knocking head is inserted into the bottom of the inner cavity of the slot frame in the up and down directions; one end of the connecting spring is connected to the bottom end of the insertion rod, and the other end of the connecting spring is connected to the top of the knocking head; one end of the connecting rod is rotatably connected to the top of the insertion rod through a rotating shaft seat; the eccentric wheel is mounted on the rotating end of the fourth motor, and the left outer end of the eccentric wheel is rotatably connected to the other end of the connecting rod through a rotating shaft.

[0011] Compared with the prior art, the present invention has the following beneficial effects: 1. The ethanol stored in the filter is pumped into the first mixing device through the second pump body. The staff puts the konjac glucomannan material into the first mixing device. The first mixing device stirs and washes the ethanol and konjac glucomannan. The first pump body pumps the internal material of the first mixing device into the centrifugal filter for centrifugation. The konjac glucomannan inside the centrifugal filter is dropped into the feed hopper by the discharge port. The first motors on both sides drive the first screw assembly to make the mounting seat drive the feed hopper to move horizontally to above the left side to receive the groove barrel. The two first electric telescopic rods on the left side drive the rotating rod to rotate upward, and drive the telescopic cylinder with the cooperation of the connecting frame and the limiting chute. The konjac glue in the feed hopper enters the first pump body through the discharge trough, telescopic cylinder, receiving trough and electric control valve tube; the first motor drives the mounting seat to move the feed hopper to the top of the right receiving trough in cooperation with the first screw assembly; the first electric telescopic rod on the right side drives the telescopic cylinder on the right side to insert into the bottom end of the inner cavity of the discharge trough and dock with it; the konjac glue in the feed hopper enters the first lifting conveyor through the discharge trough, telescopic cylinder and receiving trough, and the first lifting conveyor transports the internal konjac glue to the inside of the second mixing device.

[0012] 2nd, by supplying equipment, the deionized water of self internal storage is pumped into the inside of the second mixing equipment by konjac glucomannan times of volume, the second mixing equipment is agitated and washed with internal konjac glucomannan and deionized water, the 3rd pump body is discharged into the inside of the box-type shell by pipeline, when wet glue realizes solid-liquid separation through upper and lower two-layer filter plates from top to bottom, colloid adheres to or remains on the filter plate surface, waste liquid passes the filter plate and is connected by a bucket below to enter into the inside of the material vehicle and concentrates on collecting and discharging, after the inside wet glue of the second mixing equipment is filtered completely, the staff changes the material vehicle, the front and rear both sides second electric telescopic rod drive the first mounting plate to drive cleaning scraper to move from left to right along the filter plate surface, make cleaning scraper scrape colloid along the filter plate surface, the 3rd motor drives the first mounting plate to drive cleaning scraper to move from left to right along the filter plate surface, The second mounting plate rotates, causing the second mounting plate to drive the cleaning scraper to flip downward to a horizontal state, and the second electric telescopic rod drives the cleaning scraper to move below the knocking head. The fourth motor drives the eccentric wheel to rotate eccentrically, so that the eccentric wheel drives one end of the connecting rod to reciprocate up and down, and then drives the insertion rod to reciprocate up and down along the inner cavity of the slot rack with the cooperation of the connecting rod. The insertion rod drives the knocking head to reciprocate and knock the top of the cleaning scraper with the cooperation of the connecting spring, so that the cleaning scraper vibrates up and down with the cooperation of the mounting spring to assist the colloid on the surface of the cleaning scraper to slide off. The slipped colloid enters the material car from the lower receiving bucket for centralized collection. The staff pours the colloid inside the material car into the second lifting conveyor, and the second lifting conveyor inputs it into the second mixing equipment for repeated washing.

[0013] By utilizing the ethanol-repellent and hydrophilic physical and chemical properties of konjac gum, an integrated automatic washing process of ethanol and water mixing is introduced. Through multi-stage washing, mixing and layered filtration, water-soluble and fat-soluble impurities can be efficiently removed, thereby improving the removal rate of soluble impurities and reducing the amount of solid particle residues. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 for Figure 1 Exploded diagram of the ethanol washing mechanism; Figure 3 for Figure 2 Exploded diagram of the conveying components; Figure 4 for Figure 3 A magnified view of point A; Figure 5 for Figure 3 Enlarged view of point B; Figure 6 for Figure 2 Exploded diagram of water washing mechanism; Figure 7 for Figure 6 Exploded view of the filter component; Figure 8 for Figure 7Enlarged view of point C; Figure 9 for Figure 7 Enlarged view of point D.

[0015] In the figure: 1. base platform, 2. controller, 3. ethanol washing mechanism, 31. double-layer platform, 32. first mixing device, 33. first pump body, 34. centrifugal filter, 35. filtering device, 36. second pump body, 4. conveying component, 41. support frame, 42. first screw assembly, 43. first motor, 44. first limit assembly, 45. mounting seat, 46. feed hopper, 47. discharge chute, 48. mounting frame, 49. sealing plate, 410. second screw assembly, 411. second motor, 412. mounting truss, 413. receiving chute, 414. electric control valve pipe, 415. first lifting conveyor, 416. telescopic cylinder, 417. limit slide, 418. vertical mounting frame, 419. Rotating rod, 420. First electric telescopic rod, 421. Connecting frame, 5. Water washing mechanism, 51. Second mixing device, 52. Supplying equipment, 53. Second lifting conveyor, 54. Third pump body, 6. Filter component, 61. Receiving bucket, 62. Material vehicle, 63. Box-type shell, 64. Filter plate, 65. Second limiting assembly, 66. First mounting plate, 67. Second electric telescopic rod, 68. Third motor, 69. Second mounting plate, 610. Mounting spring, 611. Cleaning scraper, 612. Mounting frame, 613. Slot rack, 614. Fourth motor, 615. Insert rod, 616. Striking head, 617. Connecting spring, 618. Connecting rod, 619. Eccentric wheel. DETAILED DESCRIPTION

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] See also Figures 1-9 The present invention provides a technical solution: a method for producing high-purity konjac gum, comprising: Raw material processing: S1, cleaning and peeling: use drum type cleaning machine, the konjac tuber raw material is cleaned, after cleaning, is peeled by annular knife type peeling machine; S2, slicing and crushing, using a spiral slicer to cut the peeled konjac tubers into thin slices, or using a hammer mill to crush them into particles; Konjac gum extraction: sodium hydroxide solution is added to the reactor and stirred under specified conditions for extraction. After the extraction is completed, hydrochloric acid solution is added dropwise for neutralization and the mixture is centrifuged in a disc separator to remove impurities. Solid-liquid separation and purification: Y1. Coarse filtration and impurity removal: The extracted slurry is circulated and filtered through a plate and frame filter; Y2, ethanol precipitation: the filtrate after filtering is pumped into settling tank, makes the konjac glucomannan cohesion precipitation, after precipitation is finished, reclaims the upper strata ethanol waste liquid after the distillation by overflow port and recycles; Y3. Washing: Use a two-stage washing device to wash to remove inorganic salts, pigments and sugars; Drying and pulverizing: The konjac gum solution is concentrated by vacuum, then atomized by a centrifugal atomizer, and the atomized particles are sent to a drying tower for spray drying. The dried material is pulverized by a jet mill and then classified by a vibrating screen to remove internal coarse particles. The screened material enters the finished product warehouse; Finished product processing and packaging: The crushed konjac gum is sent to a three-dimensional mixer for mixing to ensure uniformity of particle size. The mixed konjac gum is packaged according to different needs, and the finished products in the current batch are sampled and tested. After passing the test, they can be put into storage for sale.

[0018] As a preferred solution, further, Figure 1 As shown, the two-stage washing device in the above-mentioned solid-liquid separation and purification step includes: a base platform 1, a controller 2, an ethanol washing mechanism 3 and a water washing mechanism 5; the controller 2 is fixedly installed at the right rear of the top of the base platform 1, and the controller 2 has an integrated programmable logic controller and a touch screen interactive interface. The operator can preset parameters such as the number of ethanol washing times, water washing time, and equipment operation sequence through the touch screen. The controller 2 is connected to the sensors and actuators in the ethanol washing mechanism 3 and the water washing mechanism 5 through industrial Ethernet, and monitors the washing liquid concentration, material temperature, equipment operation status and other data in real time, and automatically adjusts the equipment operation parameters according to the preset program to ensure that the washing process is accurate and controllable. The ethanol washing mechanism 3 is arranged on the left side of the top of the base platform 1; the water washing mechanism 5 is arranged on the right side of the top of the base platform 1.

[0019] As a preferred solution, further, Figure 2As shown, the ethanol washing mechanism 3 includes: a double-layer platform 31, a first mixing device 32, a first pump body 33, a centrifugal filter 34, a filtering device 35, a second pump body 36 and a conveying component 4; the double-layer platform 31 is fixedly installed at the left rear of the top of the base platform 1, and the double-layer platform 31 is welded with high-strength stainless steel square tubes. The upper platform is used to carry the centrifugal filter 34, and the surface of the platform is provided with horizontal adjustment bolts to reduce the impact of vibration on the life of the equipment and the material processing effect; the lower platform provides installation space for the filtering device 35, and a shock-absorbing rubber pad is installed at the bottom of the platform to effectively isolate the vibration generated by the operation of the filtering device to avoid interference with other equipment. A guardrail is set outside the platform to ensure the safety of operators; the first mixing device 32 is installed on the top of the base platform 1 and is located at the front side of the double-deck platform 31, the first mixing device 32 is electrically connected to the controller 2, the first mixing device 32 equipment body is a cylindrical stainless steel tank body, and the volume is 500L according to the production scale design, and the tank body is provided with an openable quick-release manhole outside, which is convenient for cleaning and maintenance inside the equipment, and the tank wall jacket can be fed with circulating cooling water or hot water, and is linked in real time with the controller 2 by a temperature sensor, and the washing temperature is accurately controlled, and the stirring system adopts a variable frequency motor to drive a stirring paddle to ensure that ethanol and konjac gum material are fully mixed, promote impurity dissolution.The first mixing device 32 is electrically connected with controller 2 by industrial bus, receives controller instruction and adjusts stirring speed, temperature control and feeding and discharging operation; The first pump body 33 is arranged on the top of base platform 1 and is positioned at the left side of the first mixing device 32, the feed opening of the first pump body 33 is connected with the discharge opening of the first mixing device 32, the first pump body 33 and controller 2 are electrically connected, the first pump body 33 is selected from positive displacement gear pump, can adapt to the high viscosity characteristics of material after konjac glucomannan is washed, the feed opening is connected with the discharge opening of the first mixing device 32 by quick-install clamp, is convenient to disassembly and cleaning, the discharge opening is equipped with a pressure sensor, monitors delivery pressure in real time, and feeds data back to controller 2, the first pump body 33 is passed through the first mixing device 32, and the feed opening is connected with the discharge opening of the first mixing device 32, is convenient to disassembly and cleaning, and the discharge opening is equipped with a pressure sensor, monitors delivery pressure in real time, and feeds data back to controller 2, and ... It is electrically connected to the controller 2 through the industrial bus to achieve remote control such as start and stop, speed adjustment, etc.; the centrifugal filter 34 is installed at the top of the double-layer platform 31, and the feed port of the centrifugal filter 34 is connected to the discharge port of the first pump body 33 through a pipeline. The centrifugal filter 34 is electrically connected to the controller 2. The centrifugal filter 34 adopts a horizontal spiral sedimentation centrifuge structure and realizes stepless speed regulation through a frequency converter. The feed port of the centrifugal filter 34 is connected to the discharge port of the first pump body 33 through a silicone hose and a quick connector to ensure the sealing of the material conveying process. The liquid discharge outlet is equipped with an electric control valve. The centrifugal filter 34 is electrically connected to the controller 2 through the industrial bus and receives controller instructions to adjust parameters such as speed and running time. Number; The filtering device 35 is installed on the top of the base platform 1 and is located below the double-layer platform 31. The liquid discharge port of the centrifugal filter 34 is connected to the liquid recovery port of the filtering device 35 through a pipeline. The filtering device 35 is electrically connected to the controller 2. The filtering device 35 has an integrated three-stage filtration and distillation system. The first-stage filtration uses a polypropylene folded filter element to intercept large particles of impurities. The second-stage filtration is a diatomaceous earth filter layer to further remove fine suspended matter. The third-stage filtration uses an activated carbon adsorption column to adsorb residual pigments and odorous substances. A slag discharge port is set outside the filtering device 35 to facilitate regular cleaning of filtered impurities. The liquid outlet of the filtering device 35 is equipped with an electromagnetic flowmeter to monitor the ethanol recovery flow in real time. The device 35 is electrically connected to the controller 2 through the industrial bus, and automatically adjusts the jacket heating temperature and internal pressure according to the ethanol distillation requirements to achieve efficient recovery and recycling of ethanol; the second pump body 36 is installed on the top of the base platform 1 and is located on the right side of the filtering device 35. The liquid inlet of the second pump body 36 is connected to the liquid outlet of the filtering device 35 through a pipeline, and the liquid outlet of the second pump body 36 is connected to the liquid addition port of the first mixing device 32 through a pipeline. The second pump body 36 is electrically connected to the controller 2. The second pump body 36 uses a pneumatic diaphragm pump, which has the characteristic of being able to run at no load and is suitable for conveying filtered ethanol solution. The internal diaphragm is made of nitrile rubber to ensure chemical compatibility with the ethanol solution.The liquid inlet is connected to the liquid outlet of the filtering device 35 through an acid- and alkali-resistant UPVC pipe, and the liquid outlet is connected to the liquid addition port of the first mixing device 32 through a quick-connect stainless steel pipe. The second pump body 36 is equipped with a flow adjustment knob, which can manually adjust the delivery flow. At the same time, the operating status is fed back to the controller 2 through the pressure sensor to achieve linkage control with the feeding demand of the first mixing device 32. The second pump body 36 receives instructions from the controller 2 to complete the start and stop and flow adjustment operations; the conveying component 4 is arranged on the rear side of the first mixing device 32.

[0020] As a preferred solution, further, Figure 3 、 Figure 4 and Figure 5As shown, the conveying component 4 includes: a support frame 41, a first screw assembly 42, a first motor 43, a first limit assembly 44, a mounting seat 45, a feed hopper 46, a mounting truss 412, a receiving trough cylinder 413, an electric control valve pipe 414, a first lifting conveyor 415, a telescopic cylinder 416, a limit slide 417, a vertical mounting frame 418, a rotating rod 419, a first electric telescopic rod 420 and a connecting frame 421; the support frame 41 is fixedly installed on the top of the base platform 1 along the left and right directions and is located at the rear side of the first mixing device 32. The support frame 41 is welded into a frame structure using 304 stainless steel square tubes and is fixed to the base platform 1 along the left and right directions by anchor bolts; There are two screw assemblies 42. The two first screw assemblies 42 are respectively mounted on the front and rear sides of the support frame 41 through bearing seats. The screws in the first screw assembly 42 are mounted on the front and rear sides of the support frame 41 through bearing seats. The screw axis is parallel to the length direction of the support frame 41. The screw nut is matched with the outside of the screw to convert the rotational motion of the first motor 43 into linear motion, driving the mounting seat 45 to move in the left and right directions; there are two first motors 43. The two first motors 43 are respectively mounted on the right ends of the front and rear sides of the support frame 41 through brackets. The rotating ends of the two first motors 43 are respectively connected to the axis of the screws in the front and rear two first screw assemblies 42. A motor 43 is electrically connected to the controller 2. The first motor 43 is fixed to the right ends of the front and rear sides of the support frame 41 through an aluminum alloy bracket. The axis of the rotating end of the first motor 43 is coaxially connected to the axis of the screw. The first motor 43 adopts a servo motor and is equipped with an absolute encoder. The first motor 43 receives the displacement instruction and speed adjustment signal of the controller 2; there are two first limit assemblies 44, and the two first limit assemblies 44 are respectively installed at the right ends of the front and rear sides of the top of the support frame 41 along the left and right directions. The first limit assembly 44 consists of a linear guide rail and a limit slider; there are two mounting seats 45, and the two mounting seats 45 are respectively installed at the limit of the two first limit assemblies 44 at the front and rear. At the top of the end, two mounting seats 45 are respectively connected to the screw nuts of the two first screw assemblies 42; the feed hopper 46 is fixedly mounted on the inner sides of the front and rear mounting seats 45. The feed hopper 46 adopts an inverted conical stainless steel container and is fixed to the inner sides of the front and rear mounting seats 45 by bolts. The inner wall of the feed hopper 4 is mirror-polished to prevent material adhesion; the mounting truss 412 is mounted on the middle part of the inner side of the support frame 41 along the front-to-back direction; there are two receiving trough cylinders 413, which are respectively mounted on the left and right ends of the inner side of the support frame 41. The top opening of the receiving trough cylinder 413 cooperates with the telescopic cylinder 416, and the bottom is provided with an interface to connect the electric control valve pipe 414 or the first lifting conveyor 415;The electric control valve tube 414 is installed at the bottom of the left receiving groove drum 413 and is connected to the receiving groove drum 413. The electric control valve tube 414 is connected to the liquid inlet of the first pump body 33 through a pipeline. The electric control valve tube 414 is electrically connected to the controller 2. The electric control valve tube 414 is connected to the receiving groove drum 413 through a flange, and the other end is connected to the liquid inlet of the first pump body 33 through a high-pressure resistant silicone tube. The receiving groove drum 413 adopts an electric butterfly valve to control the actuator through the output signal of the controller 2 to realize switching and flow regulation; the first lifting conveyor 415 is installed at the top of the base platform 1 through a bracket and is located on the right side of the support frame 41. The feed port of the first lifting conveyor 415 is connected to the right receiving groove drum 413. The first lifting conveyor The conveyor 415 is electrically connected to the controller 2. The first lifting conveyor 415 adopts a screw conveyor with an upward tilted conveying direction. The controller 2 starts and stops the motor according to the material conveying demand and adjusts the conveying speed through the frequency converter. There are two telescopic cylinders 416. The two telescopic cylinders 416 are respectively inserted into the top of the inner cavity of the left and right receiving trough cylinders 413. The telescopic cylinders 416 are connected to the discharge trough cylinder 47 at the bottom of the feed hopper 46 by lifting to form a closed conveying channel. There are two limiting slide grooves 417. The two limiting slide grooves 417 are respectively installed in the middle of the outer side of the left and right telescopic cylinders 416 in the up and down directions. The vertical mounting frame 418 is fixedly installed on the top of the mounting truss 412 in the up and down directions. The mounting frame 418 provides a mounting fulcrum for the rotating rod 419 and the first electric telescopic rod 420, forming a four-link lifting mechanism; the number of the rotating rods 419 is two groups, and the number of each group of rotating rods 419 is two. One end of the two groups of rotating rods 419 is rotatably connected to the upper and lower ends of the left and right sides of the top of the vertical mounting frame 418 through bearing seats; the number of the first electric telescopic rods 420 is two groups, and the number of each group of first electric telescopic rods 420 is two. One end of the two groups of first electric telescopic rods 420 is rotatably connected to the upper and lower ends of the left and right sides of the bottom of the vertical mounting frame 418 through bearing seats, and the other ends of the left and right groups of first electric telescopic rods 420 are respectively connected to the outer surface of the bottom rotating rod 419 of the left and right groups. The front and rear sides are rotatably connected through bearing seats, and the first electric telescopic rod 420 is electrically connected to the controller 2. The first electric telescopic rod 420 receives signals from the controller 2 to control the telescopic stroke and speed of the telescopic rod, thereby realizing the lifting and lowering control of the telescopic cylinder 416; there are two connecting frames 421, and the two connecting frames 421 are respectively rotatably connected to the inner sides of the other ends of the left and right groups of rotating rods 419 in the up and down directions through bearings, and the outer ends of the two connecting frames 421 are respectively inserted into the inner cavities of the left and right limiting slide grooves 417; wherein, a switch unit is installed below the discharge port of the feed hopper 46, and the switch unit includes: a discharge chute 47, a mounting frame 48, a sealing plate 49, a second screw assembly 410 and a second motor 411;The discharge trough 47 is installed below the feed hopper 46. The top of the inner cavity of the discharge trough 47 is connected to the discharge port of the feed hopper 46. A limiting slot is provided above the top of the rear side of the inner cavity of the discharge trough 47. The discharge trough 47 is welded to the bottom of the feed hopper 46 below the discharge port. A limiting slot is provided on the rear side for installing a sealing plate 49. A silicone sealing strip is provided on the edge of the slot to prevent material leakage. The mounting bracket 48 is installed on the rear side of the discharge trough 47 along the front-to-back direction. The sealing plate 49 is inserted into the inner cavity of the limiting slot of the discharge trough 47 along the front-to-back direction. The rear side of the sealing plate 49 extends to the inside of the mounting bracket 48. The cross-sectional shape of the sealing plate 49 matches the limiting slot. A polytetrafluoroethylene sealing strip is pasted around the plate body of the sealing plate 49 to ensure zero leakage of material. The second screw Assembly 410 is mounted within the inner cavity of mounting bracket 48. The screw nut in second screw assembly 410 is connected to the rear side of the lower surface of sealing plate 49. The screw in second screw assembly 410 is mounted within the inner cavity of mounting bracket 48, with the screw axis perpendicular to the axis of discharge chute 47. The nut is connected to the rear side of the lower surface of sealing plate 49 via bolts. A second motor 411 is mounted on the rear side of mounting bracket 48. The rotating end of second motor 411 extends into the inner side of mounting bracket 48 and is connected to the screw of second screw assembly 410. Second motor 411 is electrically connected to controller 2. Second motor 411 is a stepper motor. Controller 2 sends pulse signals to control the motor's rotation angle, achieving the forward and backward movement of sealing plate 49 and accurately controlling the opening and closing state of discharge chute 47.

[0021] As a preferred solution, further, Figure 6As shown, the water washing mechanism 5 includes: a second mixing device 51, a supply device 52, a second lifting conveyor 53, a third pump body 54 and a filter component 6; the second mixing device 51 is fixedly installed on the right side of the base platform 1 in the up and down direction, the discharge port of the first lifting conveyor 415 is connected to the top left feeding port of the second mixing device 51, the second mixing device 51 is electrically connected to the controller 2, and the top left feeding port of the second mixing device 51 is connected to the discharge port of the first lifting conveyor 415 through a quick-install bellows to ensure closed transportation of materials, and the device body receives the stirring speed and temperature of the controller 2 in real time. Control and other instructions, the second mixing device 51 adopts planetary stirring structure, and main stirring paddle stirs while, and edge scraping paddle rotates synchronously, ensures that glue block is evenly dispersed, and then realizes the uniform mixing washing of konjac glucomannan and 2 times of volume deionized water, destroys colloid agglomeration structure by dispersion disk shear force, promotes small molecule impurity dissolution; Supplying device 52 is arranged on the top of base platform 1 and is positioned at the left side of the second mixing device 51, the liquid outlet of supplying device 52 is connected with the liquid inlet of the second mixing device 51 by pipeline, supplying device 52 is electrically connected with controller 2, and supplying device 52 liquid outlets are passed through high pressure resistant UPVC pipe The pipeline is connected to the liquid inlet of the mixing device, and a one-way valve is provided in the pipeline to prevent backflow. The tank body of the supply device 52 adopts a vertical cylindrical stainless steel tank, and a liquid level gauge and a breathing valve are provided inside the tank body. The conveying system of the supply device 52 adopts a centrifugal pump with an electromagnetic flowmeter to monitor the deionized water delivery volume in real time; the second lifting conveyor 53 is installed at the top of the base platform 1 and is located at the front side of the second mixing device 51, the discharge port of the second lifting conveyor 53 is connected to the feed port of the second mixing device 51, the second lifting conveyor 53 is electrically connected to the controller 2, and the discharge port of the second lifting conveyor 53 is connected to the top of the second mixing device 51. The third pump body 54 is arranged on the top of the base platform 1 and is positioned at the right side of the second mixing device 51. The feed port of the third pump body 54 is connected with the discharge port of the second mixing device 51 by a pipeline. The third pump body 54 is electrically connected with the controller 2. The third pump body 54 adopts a pneumatic diaphragm pump to be applicable to high-viscosity colloid transportation. Start and stop are controlled by the controller 2 signals to realize the material transportation before solid-liquid separation. Filter component 6 is arranged on the right side of the third pump body 54.

[0022] As a preferred solution, further, Figure 7 、 Figure 8 and Figure 9As shown, the filtering component 6 includes: a receiving bucket 61, a material cart 62, a box-type shell 63, a filter plate 64, a second limit assembly 65, a first mounting plate 66, a second electric telescopic rod 67, a third motor 68, a second mounting plate 69, a mounting spring 610 and a cleaning scraper 611; the receiving bucket 61 is fixedly installed on the top of the base platform 1 and is located on the right side of the third pump body 54. The receiving bucket 61 is fixed to the top of the base platform 1 by anchor bolts. The bucket body is designed in an inverted cone shape and has diversion and temporary storage functions to prevent waste liquid from overflowing. A quick-connect flange is provided at the bottom discharge port for easy quick connection with the material cart 62; the material cart 62 can be detachably installed at the bottom of the discharge port of the receiving bucket 61. The material cart 62 adopts a movable design and has four polyurethane universal wheels installed at the bottom. Easy to disassemble and move; the box-type shell 63 is installed at the top of the receiving bucket 61 and communicates with the inner cavity of the receiving bucket 61. The discharge port of the third pump body 54 is connected to the top opening of the inner cavity of the box-type shell 63 through a pipeline and is fixed to the top of the receiving bucket 61 by bolts. The top feed port of the third pump body 54 and the discharge port of the third pump body 54 are connected by acid and alkali resistant hoses and quick connectors to ensure the sealing of the delivery. A quick-opening door structure is set on the outside of the third pump body 54, equipped with a pneumatic lock and a silicone sealing strip to facilitate the replacement of the filter plate 64 and internal maintenance. An exhaust port is provided on the outside of the third pump body 54 and a breathing valve is installed to balance the internal pressure; there are two filter plates 64, and the two filter plates 64 are respectively installed on the upper and lower sides of the middle of the inner cavity of the box-type shell 63; the second limit assembly 65 There are two groups, and each group of second limit assemblies 65 has two members. The two groups of second limit assemblies 65 are respectively mounted on the inner wall of the box-type housing 63 in the left and right directions and are located on the front and rear sides above the filter plate 64. The second limit assembly 65 is composed of a linear guide rail and a limit block to provide guidance and stroke limit for the movement of the cleaning scraper 611, ensuring that it slides smoothly along the surface of the filter plate; there are two groups of first mounting plates 66, and each group of first mounting plates 66 has two members. The two groups of first mounting plates 66 are respectively mounted on the inner sides of the limit ends of the two groups of second limit assemblies 65; there are two groups of second electric telescopic rods 67, and each group of second electric telescopic rods 67 has two members. The two groups of second electric telescopic rods 67 are respectively mounted on the inner wall of the box-type housing 63 and are located at On the inner sides of the two sets of second limit assemblies 65, the telescopic ends of the two sets of second electric telescopic rods 67 are respectively connected to the two sets of first mounting plates 66. The second electric telescopic rods 67 are electrically connected to the controller 2. The second electric telescopic rods 67 control the telescopic action through the output signal of the controller 2, and cooperate with the third motor 68 to complete the reciprocating movement of the cleaning scraper 611; the number of the third motors 68 is two groups, and the number of each group of the third motors 68 is two. The two groups of third motors 68 are respectively installed on the outer sides of the two sets of first mounting plates 66. The third motors 68 are electrically connected to the controller 2. The third motors 68 are fixed to the outer sides of the first mounting plates 66 through motor brackets and are equipped with a reducer to drive the second mounting plate 69 to rotate, thereby realizing the angle flipping of the cleaning scraper 611 and assisting the colloid to fall off;There are two second mounting plates 69, and the two second mounting plates 69 are respectively mounted on the inner sides of the rotating ends of the two sets of third motors 68 along the front-to-back direction; there are two groups of mounting springs 610, and the number of each group of mounting springs 610 is two. The two groups of mounting springs 610 are respectively mounted on the front and rear ends of the right sides of the two second mounting plates 69. The mounting springs 610 provide elastic pressure for the cleaning scraper 611, which plays a buffering role during knocking vibration; there are two groups of cleaning scrapers 611, and the number of each group of cleaning scrapers 611 is two. The two groups of cleaning scrapers 611 are respectively mounted on the right sides of the two sets of second mounting plates 69. The cleaning scraper 611 is made of polytetrafluoroethylene. The length matches the width of the filter plate, and the edges are chamfered to prevent scratching the filter; wherein, auxiliary cleaning units are installed at the front and rear ends of the right side of the upper and lower filter plates 64; the auxiliary cleaning unit includes: a mounting frame 612, a slot frame 613, a fourth motor 614, a plug rod 615, a knocking head 616, a connecting spring 617, a connecting rod 618 and an eccentric wheel 619; the mounting frame 612 is fixedly mounted on the inner wall of the box-type housing 63 and is located above the right side of the filter plate 64. The mounting frame 612 is welded with 304 stainless steel square tubes, and space is reserved inside for installing the fourth motor 614 and transmission components; the slot frame 613 is mounted on the mounting frame 612 The fourth motor 614 is electrically connected to the controller 2 and is fixed to the inner side of the mounting frame 612 through a motor seat. The fourth motor 614 is equipped with a reducer and the controller 2 adjusts the speed through the frequency converter to achieve precise control of the knocking frequency. The insertion rod 615 is inserted into the top of the inner cavity of the slot frame 613 along the up and down directions. The knocking head 616 is inserted into the bottom of the inner cavity of the slot frame 613 along the up and down directions. The bottom end of the knocking head 616 is hemispherical in shape, and anti-slip grooves are set on the bottom to enhance the knocking effect. The sleeve slides into engagement with the bottom of the slot frame 613 to ensure vertical striking. One end of a connecting spring 617 is connected to the bottom end of the insertion rod 615, and the other end of the connecting spring 617 is connected to the top of the striking head 616. The connecting spring 617 is used to cushion the impact of striking while allowing the striking head 616 to quickly reset. One end of a connecting rod 618 is rotatably connected to the top of the insertion rod 615 via a rotating shaft seat. An eccentric wheel 619 is mounted on the rotating end of the fourth motor 614. The left outer end of the eccentric wheel 619 is rotatably connected to the other end of the connecting rod 618 via a rotating shaft. The centrifugal force generated by the rotation of the eccentric wheel 619 drives the insertion rod 615, achieving a periodic striking action of the striking head 616.

[0023] The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process. The specific operations are as follows.

[0024] Step 1: Purchase fresh, non-rotten konjac tubers according to the diameter of 5cm, starch content ≥18%, and moisture ≤70%. Weigh the konjac tubers that meet the standards and record the source of the raw materials. Sampling and testing for pesticide residues to ensure compliance with production standards. Use a drum washing machine at a speed of 15-20 rpm with a high-pressure water gun to wash the konjac tubers for 10 minutes, and control the washing water temperature to ≤30°C to prevent enzymatic browning. After washing, peel the tubers using a circular knife peeling machine. The peeling thickness is controlled at 0.3-0.5mm. The whiteness value of the tubers after peeling is ≥60. Use a spiral slicer to cut the peeled konjac tubers into thin slices of 0.8-1.2cm thick, or use a hammer mill to crush them into particles with a particle size of 2-5mm. Step 2: Add 0.1% to 0.3% w / v sodium hydroxide solution to the reactor to adjust the pH to 9.5-10.5, control the temperature at 55±3°C, and extract at a stirring speed of 80 rpm for 120 minutes. After the extraction, add 30% hydrochloric acid solution dropwise for neutralization, adjust the pH to 6.8-7.2, and centrifuge at a speed of 8000 rpm using a disc separator to remove impurities so that the solid content of impurities is ≥20%.

[0025] Step 3: the slurries after the extraction are passed through filter cloth material polypropylene, the plate and frame filter of filtration pressure 0.3-0.5MPa is recycled and filtered, until filtrate transmittance ≥85%, the filtrate after filtering is pumped into settling tank, according to ethanol and filtrate volume ratio 2:1, slowly adding concentration is 75 ± 5% ethanol, and with the speed stirring of 30 rev / mins 60 minutes, temperature is controlled at≤25 DEG C, makes konjac glucomannan cohesion precipitation, after precipitation is completed, reclaim upper strata ethanol waste liquid by overflow port, recycle after the distillation; Step 4: staff control controller 2 starts, controller 2 inner preset program controls the second pump body 36, the first mixing device 32, the first pump body 33, centrifugal filter 34, the first motor 43, the first electric telescopic rod 420, the second motor 411, electric control valve pipe 414 and the first lifting conveyor 415 start, 70% ethanol of filtering device 35 inner storages is pumped into the first mixing device 32 insides by the second pump body 36, consumption is 1.5 times of sedimentation volume, konjac glucomannan material is delivered to the insides of the first mixing device 32 by staff, the first mixing device 32 was with ethanol and konjac glucomannan agitation and washing 15 minutes, promote konjac glucomannan internal impurity pigment and small molecule sugar to be dissolved in ethanol, the first pump body 33 is with the insides of the first mixing device 32 The material after washing is pumped into centrifugal filter 34 inside, centrifugal filter 34 is centrifuged for 5 minutes according to 4000 rev / min of rotating speed, removes pigment and sugar content, and the ethanol waste liquid after centrifugation enters into filtering device 35 inside and filters and circulates after distillation process for use, the inner konjac glucomannan of centrifugal filter 34 is dropped into feed hopper 46 by discharging port, and the first motor 43 on front and back sides drives the lead screw in the first lead screw assembly 42 on corresponding position to drive the lead screw nut to move, drives the feed hopper 46 to move horizontally to above the left side connecting groove drum 413 under the limiting effect of driving mounting seat 45, and the first electric telescopic rods 420 on the left side extend and drive the rotating rod 419 on the corresponding position to rotate upwards, and on the other side, ... Under the limiting action of the side rotating rod 419, the connecting frame 421 is driven to move upward in the inner cavity of the limiting slide groove 417, so that with the cooperation of the connecting frame 421 and the limiting slide groove 417, the telescopic cylinder 416 is driven to extend upward from the inner cavity of the receiving groove cylinder 413 and insert into the bottom end of the inner cavity of the discharge groove cylinder 47 to dock with it, the second motor 411 drives the lead screw in the second screw assembly 410 to drive the lead screw nut to move, and drives the sealing plate 49 to move backward in the inner cavity of the discharge groove cylinder 47 to release the internal seal of the discharge groove cylinder 47, and at the same time the electric control valve pipe 414 is opened synchronously, and the konjac glue inside the feed hopper 46 enters the interior of the first pump body 33 through the discharge groove cylinder 47, the telescopic cylinder 416, the receiving groove cylinder 413 and the electric control valve pipe 414. The upper and lower parts of the mixing equipment 32 are connected by the first motor 43, and the lower part of the mixing equipment 32 is connected by the first motor 43. The upper and lower parts of the mixing equipment 32 are connected by the first motor 43, and the lower part of the mixing equipment 32 is connected by the first motor 43. The lower part of the mixing equipment 32 is connected by the first motor 43, and the lower part of the mixing equipment 32 is connected by the first motor 43. The lower part of the mixing equipment 32 is connected by the first motor 43, and the upper and lower parts of the mixing equipment 32 are ... Step 5: controller 2 inner preset program control supply equipment 52, the second mixing equipment 51, the 3rd pump body 54, the second electric telescopic rod 67, the 3rd motor 68 and the 4th motor 614 start, supply equipment 52 is pumped into the second mixing equipment 51 insides by 2 times of volumes of konjac glucomannan with the deionized water of self internal storage, the second mixing equipment 51 made the glue piece be dispersed into flocculent with inner konjac glucomannan and deionized water stirring and washing in 10 minutes, the 3rd pump body 54 is discharged into box-type housing 63 insides by pipeline with inner wet glue, wet glue passes upper and lower two-layer filter plates 64 from top to bottom and realizes solid-liquid separation When the colloid adheres to or remains on the surface of the filter plate 64, the waste liquid passes through the filter plate 64 and enters the material cart 62 from the bottom receiving bucket 61 to be collected and discharged. After the wet glue inside the second mixing device 51 is completely filtered, the staff replaces the material cart 62, and the second electric telescopic rods 67 on the front and rear sides extend to drive the first mounting plate 66. The first mounting plate 66 is limited by the second limiting component 65 and cooperates with the third motor 68, the second mounting plate 69 and the mounting spring 610 to drive the cleaning scraper 611 to move from left to right along the surface of the filter plate 64, so that the cleaning scraper 6 11 scrapes the colloid along the surface of the filter plate 64, and the cleaning scraper 611 moves to the outside of the filter plate 64 along the second limit assembly 65. The third motor 68 drives the second mounting plate 69 to rotate, so that the second mounting plate 69 drives the cleaning scraper 611 to flip downward to a horizontal state, and then uses gravity to assist the colloid to slide down. The second electric telescopic rod 67 extends and continues to drive the cleaning scraper 611 to move below the knocking head 616. The fourth motor 614 drives the eccentric wheel 619 to rotate eccentrically, so that the eccentric wheel 619 drives one end of the connecting rod 618 to reciprocate up and down, and then drives the connecting rod 618 to cooperate with the cleaning scraper 611. The insertion rod 615 reciprocates up and down along the inner cavity of the slot frame 613. The insertion rod 615 drives the knocking head 616 to knock back and forth on the top of the cleaning scraper 611 in cooperation with the connecting spring 617, so that the cleaning scraper 611 vibrates up and down in cooperation with the mounting spring 610, so as to assist the colloid on the surface of the cleaning scraper 611 to slide down. The colloid that slides down enters the interior of the material cart 62 through the lower receiving bucket 61 for centralized collection. The staff pours the colloid in the material cart 62 into the interior of the second lifting conveyor 53, and the second lifting conveyor 53 inputs it into the interior of the second mixing device 51 for repeated washing until the filtrate is clear. Step 6: the konjac glucomannan solution after washing is passed through vacuum concentration, solid content is made to reach 10%~15%, then atomized by centrifugal atomizer under the speed of rotating speed 15000-20000 rev / min, atomization particle size is controlled at 20-50 μm, at inlet temperature 180-200 ℃, outlet temperature 80-90 ℃, drying tower negative pressure-500--800Pa, spray drying is carried out, using air flow disintegrator to be that dried material is ground to D50=20 μm under the 0.6-0.8MPa condition in air pressure, then carry out vibratory sieve classification by 120 mesh vibrating screens, remove coarse particle, undersize enters finished product bin; Step 7: Feed the crushed konjac gum into a three-dimensional mixer and mix at a speed of 15 rpm for 30 minutes to ensure uniform particle size. Package it according to different needs. The packaging must be marked with information such as product name, grade, viscosity value, production date, etc., and the finished product must be fully sampled and tested, including core indicators such as viscosity, moisture, ash content, arsenic and lead. It can only be put into storage and sold after passing the test.

[0026] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A production method for high-purity konjac gum, characterized in that, include: Raw material processing: washing and peeling → slicing and crushing → konjac gum extraction; Solid-liquid separation and purification: coarse filtration to remove impurities → ethanol precipitation → washing with a two-stage washing device to remove inorganic salts, pigments and sugars → drying and crushing → finished product processing and packaging; The two-stage washing device includes: Base platform (1); A controller (2) is fixedly mounted on the right rear of the top of the base platform (1); An ethanol washing mechanism (3) is arranged on the left side of the top end of the base platform (1); The water washing mechanism (5) is arranged on the right side of the top end of the base platform (1).

2. the production method of a kind of high-purity konjac glucomannan according to claim 1, is characterized in that: The ethanol washing mechanism (3) comprises: A double-layer platform (31) is fixedly mounted on the left rear of the top end of the base platform (1); a first mixing device (32) mounted on the top of the base platform (1) and located in front of the double-layer platform (31), wherein the first mixing device (32) is electrically connected to the controller (2); a first pump body (33) mounted on the top of the base platform (1) and located on the left side of the first mixing device (32); a feed port of the first pump body (33) connected to a discharge port of the first mixing device (32); and the first pump body (33) and the controller (2) being electrically connected; A centrifugal filter (34) is installed on the top of the double-layer platform (31), the feed port of the centrifugal filter (34) is connected to the discharge port of the first pump body (33) through a pipeline, and the centrifugal filter (34) is electrically connected to the controller (2); A filtering device (35) is installed on the top of the base platform (1) and is located below the double-layer platform (31); the liquid discharge port of the centrifugal filter (34) is connected to the liquid recovery port of the filtering device (35) through a pipeline; and the filtering device (35) is electrically connected to the controller (2); a second pump body (36) mounted on the top of the base platform (1) and located on the right side of the filtering device (35); a liquid inlet of the second pump body (36) is connected to a liquid outlet of the filtering device (35) via a pipeline; a liquid outlet of the second pump body (36) is connected to a liquid addition port of the first mixing device (32) via a pipeline; and the second pump body (36) is electrically connected to the controller (2); The conveying component (4) is arranged on the rear side of the first mixing device (32).

3. the production method of a kind of high-purity konjac glucomannan according to claim 2, is characterized in that: The conveying component (4) comprises: A support frame (41) is fixedly mounted on the top of the base platform (1) in the left-right direction and is located at the rear side of the first mixing device (32); A first screw assembly (42), wherein the number of the first screw assemblies (42) is two, and the two first screw assemblies (42) are respectively mounted on the front and rear sides of the support frame (41) through bearing seats; A first motor (43), wherein the number of the first motors (43) is two, and the two first motors (43) are respectively mounted on the right ends of the front and rear sides of the support frame (41) through brackets, and the rotating ends of the two first motors (43) are respectively connected to the axis of the lead screw in the front and rear first lead screw assemblies (42), and the first motors (43) are electrically connected to the controller (2); A first limiting assembly (44), the number of the first limiting assemblies (44) being two, and the two first limiting assemblies (44) being respectively installed at the right ends of the front and rear sides of the top end of the support frame (41) along the left and right directions; A mounting seat (45), wherein the number of the mounting seats (45) is two, and the two mounting seats (45) are respectively mounted on the top of the limiting ends of the two front and rear first limiting assemblies (44), and the two mounting seats (45) are respectively connected to the screw nuts of the two first screw assemblies (42); A feed hopper (46) is fixedly mounted on the inner sides of the front and rear mounting seats (45); Wherein, a switch unit is installed below the discharge port of the feed hopper (46).

4. the production method of a kind of high-purity konjac glucomannan according to claim 3, is characterized in that: The conveying component (4) further includes: An installation truss (412) is installed in the middle of the inner side of the support frame (41) along the front-back direction; A receiving groove drum (413), wherein the number of the receiving groove drum (413) is two, and the two receiving groove drums (413) are respectively installed at the left and right ends of the inner side of the support frame (41); An electric control valve tube (414) is installed at the bottom of the receiving groove drum (413) on the left side and is connected to the receiving groove drum (413). The electric control valve tube (414) is connected to the liquid inlet of the first pump body (33) through a pipeline. The electric control valve tube (414) is electrically connected to the controller (2); A first lifting conveyor (415) is mounted on the top of the base platform (1) via a bracket and is located on the right side of the support frame (41); a feed port of the first lifting conveyor (415) is connected to the right receiving trough (413); and the first lifting conveyor (415) is electrically connected to the controller (2); Telescopic cylinders (416), the number of the telescopic cylinders (416) is two, and the two telescopic cylinders (416) are respectively plugged into the top ends of the inner cavities of the left and right receiving groove cylinders (413); A limiting slide groove (417), wherein the number of the limiting slide grooves (417) is two, and the two limiting slide grooves (417) are respectively installed in the middle of the outer sides of the left and right telescopic cylinders (416) along the up and down directions; A vertical mounting frame (418) fixedly mounted on the top of the mounting truss (412) in an up-down direction; Rotating rods (419), the number of the rotating rods (419) is two groups, the number of the rotating rods (419) in each group is two, and one end of the two groups of rotating rods (419) is rotatably connected to the left and right sides and the upper and lower ends of the top of the vertical mounting frame (418) through bearing seats respectively; a first electric telescopic rod (420), wherein the number of the first electric telescopic rod (420) is two groups, and the number of the first electric telescopic rod (420) in each group is two, one end of the two groups of the first electric telescopic rod (420) is rotatably connected to the upper and lower ends of the left and right sides of the bottom end of the vertical mounting frame (418) through bearing seats, and the other ends of the left and right groups of the first electric telescopic rod (420) are rotatably connected to the front and rear sides of the outer surface of the bottom rotating rod (419) of the left and right groups through bearing seats, respectively, and the first electric telescopic rod (420) is electrically connected to the controller (2); The connecting frames (421) are two in number, and the two connecting frames (421) are rotatably connected to the inner sides of the other ends of the left and right groups of rotating rods (419) respectively in the up-down direction through bearings, and the outer ends of the two connecting frames (421) are respectively inserted into the inner cavities of the left and right limiting sliding grooves (417).

5. the production method of a kind of high-purity konjac glucomannan according to claim 4, is characterized in that: The water washing mechanism (5) comprises: The second mixing device (51) is fixedly mounted on the right side of the base platform (1) in the vertical direction, the discharge port of the first lifting conveyor (415) is connected to the top left feeding port of the second mixing device (51), and the second mixing device (51) is electrically connected to the controller (2); a supply device (52) mounted on the top of the base platform (1) and located on the left side of the second mixing device (51); a liquid outlet of the supply device (52) is connected to a liquid inlet of the second mixing device (51) via a pipeline; and the supply device (52) is electrically connected to the controller (2); a second lifting conveyor (53) installed at the top of the base platform (1) and located in front of the second mixing device (51); a discharge port of the second lifting conveyor (53) is connected to a feed port of the second mixing device (51); and the second lifting conveyor (53) is electrically connected to the controller (2); a third pump body (54) mounted on the top of the base platform (1) and located on the right side of the second mixing device (51); a feed port of the third pump body (54) and a discharge port of the second mixing device (51) are connected via a pipeline; and the third pump body (54) and the controller (2) are electrically connected; The filter component (6) is arranged on the right side of the third pump body (54).

6. the production method of a kind of high-purity konjac glucomannan according to claim 5, is characterized in that: The filtering component (6) comprises: A receiving bucket (61) is fixedly mounted on the top of the base platform (1) and is located on the right side of the third pump body (54); A material cart (62) is detachably mounted at the bottom of the discharge port of the receiving bucket (61); A box-type housing (63) is installed at the top of the receiving bucket (61) and communicates with the inner cavity of the receiving bucket (61); the discharge port of the third pump body (54) is connected to the opening at the top of the inner cavity of the box-type housing (63) through a pipeline; Filter plates (64), the number of the filter plates (64) is two, and the two filter plates (64) are respectively installed on the upper and lower sides of the middle of the inner cavity of the box-type housing (63); A second limiting assembly (65), the number of the second limiting assemblies (65) being two groups, the number of the second limiting assemblies (65) in each group being two, the two groups of the second limiting assemblies (65) being respectively installed on the inner wall of the box-type housing (63) along the left and right directions and located on the front and rear sides above the filter plate (64); A first mounting plate (66), wherein the number of the first mounting plates (66) is two groups, the number of the first mounting plates (66) in each group is two, and the two groups of the first mounting plates (66) are respectively mounted on the inner sides of the limiting ends of the two groups of second limiting assemblies (65); Second electric telescopic rods (67), the number of the second electric telescopic rods (67) is two groups, the number of the second electric telescopic rods (67) in each group is two, the two groups of the second electric telescopic rods (67) are respectively installed on the inner wall of the box-type housing (63) and located on the inner side of the two groups of second limit assemblies (65), the telescopic ends of the two groups of the second electric telescopic rods (67) are respectively connected to the two groups of first mounting plates (66), and the second electric telescopic rods (67) are electrically connected to the controller (2); A third motor (68), wherein the number of the third motors (68) is two groups, and the number of the third motors (68) in each group is two, and the two groups of the third motors (68) are respectively mounted on the outside of the two groups of first mounting plates (66), and the third motors (68) are electrically connected to the controller (2); A second mounting plate (69), the number of the second mounting plates (69) being two, and the two second mounting plates (69) being respectively mounted on the inner sides of the rotating ends of the two sets of third motors (68) along the front-back direction; Mounting springs (610), the number of the mounting springs (610) being two groups, the number of the mounting springs (610) in each group being two, and the two groups of the mounting springs (610) being respectively mounted on the front and rear ends of the right sides of the two second mounting plates (69); Cleaning scrapers (611), the number of the cleaning scrapers (611) is two groups, the number of the cleaning scrapers (611) in each group is two, and the two groups of cleaning scrapers (611) are respectively installed on the right side of the two groups of second mounting plates (69); Auxiliary cleaning units are installed at the front and rear ends of the right sides of the upper and lower filter plates (64).

7. the production method of a kind of high-purity konjac glucomannan according to claim 6, is characterized in that: The auxiliary cleaning unit comprises: A mounting frame (612) is fixedly mounted on the inner wall of the box-type housing (63) and is located above the right side of the filter plate (64); A slot frame (613) is mounted on the left bottom end of the mounting frame (612); a fourth motor (614) mounted on the upper left corner of the inner side of the mounting frame (612), a rotating end of the fourth motor (614) extending outside the mounting frame (612), and the fourth motor (614) being electrically connected to the controller (2); An insertion rod (615) is inserted into the top of the inner cavity of the slot frame (613) in the up-down direction; A striking head (616) is inserted into the bottom of the inner cavity of the slot frame (613) in the up-down direction; A connecting spring (617), one end of which is connected to the bottom end of the insertion rod (615), and the other end of which is connected to the top end of the striking head (616); A connecting rod (618), one end of which is rotatably connected to the top end of the insertion rod (615) via a rotating shaft seat; An eccentric wheel (619) is mounted on the rotating end of the fourth motor (614), and the left outer end of the eccentric wheel (619) is rotatably connected to the other end of the connecting rod (618) via a rotating shaft.

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