CN112931817A

CN112931817A - Preparation method of wet-process konjac fine powder

Info

Publication number: CN112931817A
Application number: CN202110202598.2A
Authority: CN
Inventors: 竹文坤; 何嵘; 陈涛; 罗学刚; 林晓艳; 龙晓燕; 谢福凯; 张红平
Original assignee: Southwest University of Science and Technology
Current assignee: Southwest University of Science and Technology
Priority date: 2021-02-22
Filing date: 2021-02-22
Publication date: 2021-06-11

Abstract

The invention discloses a preparation method of wet-process konjac fine powder, which comprises the following steps: cleaning, namely cleaning silt impurities outside the konjak by using a squirrel-cage cleaning machine; peeling, namely removing the outer surface and the head of the konjak by using peeling equipment, and spraying or dipping alcohol with the concentration of 90-95% to the outside to protect the color; step three, cutting into pieces, namely processing the peeled fresh konjak into pieces with the diameter of 1-1.5cm by adopting cutting equipment, and putting the cut konjak into an alcohol mixture with the concentration of 5% -15% to obtain a konjak piece mixture, wherein the mass ratio of the konjak pieces to the alcohol mixture is 1: 7; grinding, namely putting the konjak block mixture into grinding equipment for grinding treatment to obtain konjak slurry; separating, namely separating the konjak pulp by adopting centrifugal separation equipment to obtain konjak fine powder; and step six, drying, namely drying the obtained konjac powder at the temperature of 100-120 ℃. The invention provides a preparation method of konjak fine powder by a wet method, which is suitable for the continuous production requirement of an industrial production line.

Description

Preparation method of wet-process konjac fine powder

Technical Field

The invention relates to the field of deep processing of agricultural products. More specifically, the invention relates to a preparation method of konjak fine powder by a wet method.

Background

The commercial konjak bulb is the main part of industrial deep processing and utilization. The fresh konjak bulbs contain a large amount of water, generally about 80% of water, about 20% of dry matter, whose main components are carbohydrates (mainly glucomannan and starch), cellulose, hemicellulose, soluble sugars, etc., and in addition, contain a small amount of proteins, amino acids, enzymes, fats, alkaloids, inorganic salts, and other special substances. The konjak fine powder is konjak powder which is prepared by crushing fresh konjak (including slices, strips and horns) by a physical dry method and then quickly dehydrating the crushed konjak or by wet processing edible alcohol to remove impurities such as starch and the like preliminarily, and has the granularity of 0.125-0.425 mm (120-40 meshes) and more than 90 percent of particles, and the konjak fine powder is a deep-processed product of konjak with better application degree and higher economic value.

At present, the processing method of common konjac fine powder generally comprises a wet processing method and a dry processing method, the wet processing method has the advantages that the controllability of the particle size of the konjac fine powder is good, the uniformity and the uniformity are stable, but the processing method is simple in the actual processing process, but the konjac fine powder is applied to the industry or the automation of a production line has no adaptability.

Disclosure of Invention

An object of the present invention is to solve at least the above problems and/or disadvantages and to provide at least the advantages described hereinafter.

To achieve these objects and other advantages in accordance with the present invention, there is provided a method for preparing refined konjac flour by a wet process, comprising:

cleaning, namely cleaning silt impurities outside the konjak by using a squirrel-cage cleaning machine;

peeling, namely removing the outer surface and the head of the konjak by using peeling equipment, and spraying or dipping alcohol with the concentration of 90-95% to the outside to protect the color;

step three, cutting into pieces, namely processing the peeled fresh konjak into pieces with the diameter of 1-1.5cm by adopting cutting equipment, and putting the cut konjak into an alcohol mixture with the concentration of 5% -15% to obtain a konjak piece mixture, wherein the mass ratio of the konjak pieces to the alcohol mixture is 1: 7;

grinding, namely putting the konjak block mixture into grinding equipment for grinding treatment to obtain konjak slurry;

separating, namely separating the konjak pulp by adopting centrifugal separation equipment to obtain konjak fine powder;

and step six, drying, namely drying the obtained konjac powder at the temperature of 100-120 ℃ to ensure that the water content is less than 10-12%.

Preferably, the squirrel cage washing machine is configured to include:

a frame-type support;

the squirrel cage is longitudinally arranged above the bracket;

a first rotating assembly mounted on the bracket by a U-shaped fixing member, configured to be disposed above the cage, and having a free end configured to protrude into the interior of the cage;

a transmission assembly below the squirrel cage is arranged;

the transmission assembly is provided with an elastic baffle matched with the transmission assembly in the transmission direction;

the transmission assembly is provided with a matched cover shell at one side far away from the squirrel cage, and a matched spraying assembly is arranged on the transmission assembly;

and a water tank matched with the spraying assembly is arranged below the transmission assembly and is communicated with a spray head of the spraying assembly through a pipeline and a water pump which are matched with each other.

Preferably, the squirrel cage is configured to include:

a plurality of fixing rings spaced apart by a predetermined distance and arranged in a transverse direction;

a plurality of spiral elastic plates arranged inside the fixing ring to form a squirrel cage structure;

wherein, the inner side wall of each spiral elastic plate is provided with a plurality of spiral first convex strips matched with the spiral direction of the spiral elastic plate;

and a flexible steel wire belt is spirally wound outside the squirrel cage.

Preferably, the first rotating assembly is configured to include:

the first motor is arranged on the fixing piece;

the first rotating shaft is in transmission connection with a power output end of the first motor;

the spiral fin is arranged outside the first rotating shaft, and the spiral direction of the spiral fin is matched with the spiral direction of the spiral elastic plate;

and a plurality of spiral second raised lines matched with the spiral direction of the spiral fins are arranged on the outer surfaces of the spiral fins.

Preferably, the cutting device is configured to include:

the material poking component is arranged on the transmission component;

guides respectively arranged at the inner side of the elastic baffle and forming a conical transmission part on the transmission component;

the reticular slitting knife is arranged at the output end of the transmission assembly, and the cutting knife is close to the reticular cutting knife;

the material stirring assembly is configured to comprise an air cylinder and a material stirring plate in transmission connection with a power output end of the air cylinder;

the kick-out plate is spatially configured to be in an L-shaped structure, an arc-shaped part matched with the outer structure of the konjak is arranged in the kick-out plate, and a plurality of arc-shaped bulges are arranged on the kick-out plate;

the material stirring assembly is arranged above the transmission assembly through a matched U-shaped mounting mechanism, and a telescopic mechanism matched with the transmission assembly is arranged on the mounting mechanism.

Preferably, the grinding apparatus is configured to include a housing, and a second rotating assembly disposed inside the housing, and configured to include:

the power output end of the second motor is provided with a second rotating shaft which is matched with the second motor;

a grinding disc group arranged on the second rotating shaft;

wherein the disc pack is configured to include an outer disc and an inner disc cooperating therewith;

the outer grinding disc is arranged on the inner side wall of the shell and comprises an upper grinding disc and a lower grinding disc which are matched with each other in space, and a feed inlet which is matched with each other is formed in the upper grinding disc;

the inner grinding disc is arranged on the rotating shaft and comprises a coarse grinding disc matched with the upper grinding disc and a fine grinding disc matched with the lower grinding disc in space.

Preferably, the inner part of the lower grinding disc is configured to be step-shaped, so that a first interference surface matched with the side wall of the coarse grinding disc is formed on the upper end side wall, a second interference surface matched with the lower side surface of the coarse grinding disc is formed on the middle end surface, and a third interference surface matched with the side wall of the fine grinding disc is formed on the lower end side wall;

a fourth interference surface and a fifth interference surface which are matched with each other are arranged on the lower side surface of the upper grinding disc and the upper side surface of the rough grinding disc, the lower side surface and the side wall of the rough grinding disc respectively form a sixth interference surface and a seventh interference surface, and an eighth interference surface which is matched with the third interference surface is arranged on the side wall of the fine grinding disc;

wherein, each interference surface of horizontal layout comprises a plurality of ring channels, and each interference surface of vertical layout comprises a plurality of spiral grooves.

The invention at least comprises the following beneficial effects: the invention discloses a konjak processing method suitable for industrial production, which is suitable for the continuous production requirement of an industrial production line, ensures the cleanliness of a processed product at the later stage by peeling, and simultaneously protects the color of the surface of peeled konjak by spraying or dipping alcohol with higher concentration, plays a role in sterilization and disinfection, ensures the product quality, and ensures the fluency in the later grinding process and reduces the interference with a ground surface by mixing the cut konjak with an alcohol mixture with preset quality.

Secondly, the cleaning device matched with the konjak is arranged according to the external structure and the characteristics of the konjak, so that more than 80% of the surface and sludge on the surface of the konjak can be removed, scratches on the surface of the konjak in the cleaning process are reduced, the completeness of the product after cleaning is ensured, and the automation degree of production line production is ensured.

Thirdly, the special grinding device is arranged according to the properties of the fresh konjac, so that the konjac can be ground in a grading mode, the konjac grinding device has two characteristics of grinding and grinding, the grinding effect is similar to that of a traditional manual processing mode, the uniformity is better, secondary grinding is not needed through different equipment, the continuity of equipment work is better, and the efficiency is better.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

FIG. 1 is a schematic cross-sectional view of a squirrel cage mated with a cutting device in one embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of the kick-off assembly engaged with the transfer assembly in another embodiment of the present invention;

FIG. 3 is a schematic top view of the material ejecting assembly and the conveying assembly of another embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view of a grinding apparatus in another embodiment of the invention.

Detailed Description

The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.

It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.

It is to be understood that in the description of the present invention, the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are used only for convenience in describing the present invention and for simplification of the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise specifically stated or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are used in a broad sense, and for example, "connected" may be a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements.

The invention relates to an implementation form of a preparation method of konjak fine powder by a wet method, which comprises the following steps:

peeling, namely removing the outer surface and the head of the konjak by using peeling equipment, spraying or dipping alcohol with the concentration of 90-95% to protect the color of the outer part of the konjak, ensuring the cleanliness of a processed product at the later stage by peeling, and spraying or dipping alcohol with higher concentration to the peeled konjak, wherein the function of protecting the color of the surface of the peeled konjak is to perform sterilization and disinfection, and the quality of the product is ensured;

step three, cutting into pieces, namely processing the peeled fresh konjak into pieces with the diameter of 1-1.5cm by adopting cutting equipment, and putting the cut konjak into an alcohol mixture with the concentration of 5% -15% to obtain a konjak piece mixture, wherein the mass ratio of the konjak pieces to the alcohol mixture is 1: compared with the prior art, the particle size of the processing blocks is smaller, and the mixing proportion of the cut konjak and the alcohol mixture with the preset mass is adjusted, so that the fluency in the later grinding process is ensured, and the interference between the cut konjak and the ground surface is reduced;

and step six, drying, namely drying the obtained konjac powder at the temperature of 100-120 ℃ to ensure that the water content is less than 10-12%, and drying at a lower temperature compared with the prior art, wherein the drying application may need to be prolonged by 0.5 time on the original basis, but the drying stability is better, and the stability of the quality of the processed product can be ensured.

In another example, as shown in fig. 1, the squirrel cage washing machine is configured to include:

the frame type support 1 is used for supporting and positioning the squirrel cage which is longitudinally arranged, so that the squirrel cage has a preset distance with the ground, the konjak is lifted to an open part at the upper end of the squirrel cage through a lifting mechanism during processing so as to enter the squirrel cage for cleaning, and the konjak directly falls above the transmission assembly through the lower end of the squirrel cage after being cleaned and is transmitted to the next procedure;

a squirrel cage 2 longitudinally arranged above the bracket and used for cleaning the konjak;

the first rotating component 3 is arranged on the bracket through a U-shaped fixing component, is configured to be arranged above the squirrel cage, has a free end configured to extend into the squirrel cage, and is used for enabling the konjac running from top to bottom to downwards pass through the spiral by the action of the first rotating component, keeping the interference between the konjac and equipment and completing the cleaning operation of the konjac in the running process;

the transmission component 4 is arranged below the squirrel cage and is used for transmitting materials, and the transmission component can select a transmission roller mode according to needs and can also select various combination modes to be matched according to needs and transmission positions;

the conveying assembly is provided with an elastic baffle 5 matched with the conveying assembly in the conveying direction, the elastic baffle has the function of limiting the konjak in space, the structure of the elastic baffle can be that a plate is made of a metal material with certain elasticity, so that the inner side of the outer wide baffle can be connected with an arc-shaped plate by arranging a plurality of elastic elements, and the two arc-shaped ends are buckled at the two parts of the baffle, so that the conveying assembly has telescopic allowance to adapt to the conveying requirements of konjak with different sizes and shapes;

the transmission component is provided with a matched cover 6 on one side far away from the squirrel cage, a matched spraying component 7 is arranged on the transmission component, the cover is used for sealing the upper part of the section with other sections and only reserving a door hole for the konjak to enter and exit so as to prevent water in the cleaning work from being separated from other procedures, and the spraying component is composed of a pipeline and a nozzle component which are matched;

the lower part of the transmission component is provided with a water tank 8 matched with the spraying component, a matched filter plate 9 can be arranged on the water tank according to requirements, the washed impurities are filtered, the water tank is communicated with a spray head of the spraying component through a matched pipeline and a water pump, and the water at the lower section can be recycled after being treated by the filtering component.

In another example, as shown in fig. 1, the cage is configured to include:

a plurality of fixing rings 10 which are spaced at a predetermined distance and transversely arranged are used for ensuring the stability of the spiral elastic plate in spatial installation, so as to form an integrated squirrel cage structure;

the spiral elastic plates 11 are arranged in the fixing ring to form a squirrel cage structure and are used for enabling the washing effect of the squirrel cage to be better compared with a horizontal rotating mode in the existing squirrel cage through spiral structure design, simultaneously enabling the stroke of the squirrel cage to be lengthened through the arrangement of the spiral structure, and simultaneously improving the silt cleaning speed of the surface of the squirrel cage in the spiral cleaning process, so that the surface breaking and shedding speed and the shedding area of the squirrel cage are larger;

the inner side wall of each spiral elastic plate is provided with a plurality of spiral first raised lines (not shown) matched with the spiral direction of the spiral elastic plate, the spiral first raised lines are used for cleaning konjak with low surface evenness through the first raised lines arranged on the spiral elastic plates, meanwhile, through the flexible structure design, the spiral elastic plates have deformation allowance and can adapt to konjak with different external structures and sizes, but the tops of the first raised lines are arranged to be arc-shaped structures, so that the damage to the konjak in the working process is reduced;

the squirrel cage outside spiral is around being equipped with flexible steel wire belt 12, it is similar to the steel wire ball of washing the dishes usefulness but its structure is the bar to when its squirrel cage is out of shape, play the effect of binding tightly to it, control its deformation allowance, simultaneously to its work in with konjaku contact segment friction treatment, so that its peel off degree is better, in the in-service use, need adopt the water pipe to spray from the squirrel cage top and clean being used for, and transmission assembly below also can set up matched with water tank, waste water after wasing filters the sediment through matched with recovery unit, carry out cyclic utilization.

In another example, as shown in fig. 1, the first rotating assembly is configured to include:

a first motor 13 arranged on the fixed part and arranged on the bracket through a matched U-shaped frame 16;

a first rotating shaft 14 in transmission connection with a power output end of the first motor;

the spiral fins 15 are arranged outside the first rotating shaft, the spiral direction of the spiral fins is matched with the spiral direction of the spiral elastic plate, the external structure of the spiral fins is arc-shaped, the damage to the konjak caused by a sharp part at the top of the spiral fins in rotary cleaning is prevented, and meanwhile, the spiral fins are arranged to limit the position of the konjak in rotary cleaning, prolong the stroke of the konjak and increase the corresponding cleaning cleanliness;

wherein, be provided with on the spiral wing surface rather than spiral direction matched with many spiral second sand grips (not shown), it is used for cooperateing with first sand grip, carries out supplementary clean to the konjaku surface to make it interfere the increase of white spirit, guarantee equipment job stabilization nature.

1-3, in another example, the cutting device is configured to include:

the material stirring component 16 is arranged on the transmission component and is used for pushing the konjak on the transmission component to the cutting position;

the guide parts 17 are respectively arranged on the inner sides of the elastic baffles and form conical transmission parts on the transmission components, are used for guiding the konjac in the baffles so as to enable the konjac to be conveyed to the cutting position one by one, can be arranged as required, and are provided with matched bending parts on one side close to the cutting position so as to form elastic parts in space to adapt to sizes of different konjac;

a reticular slitting knife 18 arranged at the output end of the transmission component, which consists of a plurality of reticular slitting knives 19 formed in an intersecting way in space or is formed by a screen plate, konjak transmitted by the transmission component directly acts on the reticular slitting knife in a propelling process to finish the slitting operation of the konjak, and a slitting knife (which can be disc-shaped and can be arranged into a sheet-shaped structure) close to the reticular slitting knife, which moves up and down in a reciprocating way and causes the structure of the slitting knife to ensure that the slitting knife can perform the dicing operation on the strip konjak in the reciprocating process, and the slitting knife are fixed at the output side of the first transmission component through a frame fixing part 24 when in installation;

the material stirring assembly is configured to comprise an air cylinder 19 and a material stirring plate 20 in transmission connection with a power output end of the air cylinder, and is used for carrying out external force pushing when the konjak is discontinuously output under the action of the material stirring plate and the conveying to a cutting position cannot be directly finished by the konjak alone;

the poking plate is spatially configured to be in an L-shaped structure, the interior of the poking plate is provided with an arc-shaped part 21 matched with the outer structure of the konjak, a plurality of arc-shaped bulges are arranged on the poking plate, the poking plate is matched with the outer structure of a single konjak through structural design, and the konjak is limited in an auxiliary manner through the action of the arc-shaped bulges, so that the pushing stability of the konjak is ensured;

the material stirring assembly is arranged above the transmission assembly through a matched U-shaped installation mechanism 22, a telescopic mechanism 23 matched with the transmission assembly is arranged on the installation mechanism, and the telescopic mechanism can realize telescopic movement in a matching mode of a cylinder or a motor and a screw rod, so that the position of the push rod can be adjusted up and down as required, and the external force pushing of the tailings is completed.

In another example, as shown in fig. 4, the grinding apparatus is configured to include a housing 25, and a second rotating assembly 26 disposed inside the housing, which is configured to include:

a second motor 27, the power output end of which is provided with a second rotating shaft 28 matched with the second motor;

a grinding disc group 29 arranged on the second rotating shaft and used for realizing multi-stage grinding of the konjak;

wherein the grinding disc group is configured to comprise an outer grinding disc 30 and an inner grinding disc 31 matched with the outer grinding disc, and the grinding operation of the mixture is realized through the matching of the outer grinding disc and the inner grinding disc;

the outer grinding disc is arranged on the inner side wall of the shell and comprises an upper grinding disc 32 and a lower grinding disc 33 which are matched with each other in space, and a matched feeding hole 34 is formed in the upper grinding disc and is used for being matched with an external feeding mechanism to convey materials into the grinding disc to finish grinding;

interior mill setting is in the pivot, and in the space including with the coarse mill 35 of runner stone matched with to and with lower mill matched with fine mill 36, through the cooperation realization of coarse mill with fine mill to the hierarchical grinding of material, guarantee that its fineness of grind accords with the product requirement, simultaneously can also extend and set up superfine mill in fine mill below as required.

In another example, as shown in fig. 4, the inside of the lower grinding disc is configured to be stepped to form a first interference surface 37 on the upper end side wall to be matched with the side wall of the coarse grinding disc, a second interference surface 38 on the middle end side wall to be matched with the lower side wall of the coarse grinding disc, and a third interference surface 39 on the lower end side wall to be matched with the side wall of the fine grinding disc;

a fourth interference surface 40 and a fifth interference surface 41 which are matched with each other are arranged on the lower side surface of the upper grinding disc and the upper side surface of the coarse grinding disc, the lower side surface and the side wall of the coarse grinding disc respectively form a sixth interference surface 42 and a seventh interference surface 43, and an eighth interference surface 44 which is matched with the third interference surface is arranged on the side wall of the fine grinding disc;

wherein each interference surface in the transverse arrangement is composed of a plurality of annular grooves (not shown), each interference surface in the longitudinal arrangement is composed of a plurality of spiral grooves (not shown), in the structure, the grinding operation is formed in the transverse direction by limiting each surface of the action of the lower grinding disc, the upper grinding disc, the coarse grinding disc and the fine grinding disc, the grinding operation is formed in the longitudinal direction, meanwhile, on the same transverse interference surface of the same grinding disc, the depth of the annular groove in the inner part is larger than that of the annular groove in the outer part and distributed in a charitable way, on the same longitudinal interference surface of the same grinding disc, the depth of the spiral groove in the inner part is larger than that of the spiral groove in the outer part, the spiral groove is in a conical structure, an arc part is arranged at the top part, a first grinding surface is formed between the upper grinding disc and the coarse grinding disc, a second grinding surface is formed between the coarse grinding disc and the fine grinding disc, and first surfaces are respectively formed between, The second grinding surface, and the spacing between the first grinding surface, the second grinding surface and the second grinding surface is gradually decreased.

The above scheme is merely illustrative of a preferred example, and is not limiting. When the invention is implemented, appropriate replacement and/or modification can be carried out according to the requirements of users.

The number of apparatuses and the scale of the process described herein are intended to simplify the description of the present invention. Applications, modifications and variations of the present invention will be apparent to those skilled in the art.

While embodiments of the invention have been disclosed above, it is not intended to be limited to the uses set forth in the specification and examples. It can be applied to all kinds of fields suitable for the present invention. Additional modifications will readily occur to those skilled in the art. It is therefore intended that the invention not be limited to the exact details and illustrations described and illustrated herein, but fall within the scope of the appended claims and equivalents thereof.

Claims

1. A preparation method of wet-process konjac fine powder is characterized by comprising the following steps:

2. The method of preparing konjac fine flour by wet process of claim 1, wherein the squirrel cage washing machine is configured to comprise:

a frame-type support;

the squirrel cage is longitudinally arranged above the bracket;

a transmission assembly below the squirrel cage is arranged;

3. The method of claim 2, wherein the squirrel cage is configured to include:

and a flexible steel wire belt is spirally wound outside the squirrel cage.

4. The method of preparing refined konjac flour by wet process of claim 3, wherein the first rotating assembly is configured to comprise:

the first motor is arranged on the fixing piece;

5. The method of preparing refined konjac flour by wet process of claim 1, wherein the cutting device is configured to comprise:

the material poking component is arranged on the transmission component;

6. The method of preparing refined konjac flour by wet process according to claim 1, wherein the grinding device is configured to include a housing, and a second rotating assembly disposed inside the housing and configured to include:

a grinding disc group arranged on the second rotating shaft;

7. The method for preparing konjac fine flour by wet process according to claim 6, wherein the inside of the lower grinding disc is configured to be step-shaped so as to form a first interference surface on the upper end side wall to be matched with the side wall of the coarse grinding disc, a second interference surface on the middle end side wall to be matched with the lower side wall of the coarse grinding disc, and a third interference surface on the lower end side wall to be matched with the side wall of the fine grinding disc;