阅读说明：本技术 一种乳酸粉的生产方法 (Production method of lactic acid powder ) 是由 潘万胜 刘大康 于 2020-07-15 设计创作，主要内容包括：本发明涉及乳酸制备领域,具体的说是一种乳酸粉的生产方法,包括装置壳、进料口、电机、碾压结构、下料头、下料口、碾压块、传料螺旋、支撑杆、顶盖、转轴、筛网、盛放结构和盛料筒。本发明通过于盛料筒内设置碾压结构,使得用于进行乳酸碾压的碾压块与盛料筒呈内切状设置,当驱动顶盖带动碾压块进行转动时,位于盛料筒内的乳酸粗料被碾压块进行碾压,而筛网与碾压块交替设置,使得碾压块在进行碾压的同时筛网会对乳酸进行筛选过滤,而在支撑杆上固定的传料螺旋在高速转动下会将筛入的乳酸细料逐渐传送至下料头一端,并最终由下料口排出,使得可以对盛料筒持续的添加乳酸粗料,并同时对乳酸粗料进行碾细河筛选并出料,提升了乳酸生产的效率。(The invention relates to the field of lactic acid preparation, in particular to a production method of lactic acid powder. According to the invention, the rolling structure is arranged in the material containing barrel, so that the rolling block for rolling the lactic acid and the material containing barrel are arranged in an inscribed manner, when the rolling block is driven by the driving top cover to rotate, the coarse lactic acid material in the material containing barrel is rolled by the rolling block, the screen and the rolling block are alternately arranged, so that the lactic acid can be screened and filtered by the screen when the rolling block is rolled, the fine lactic acid material screened in can be gradually conveyed to one end of the blanking head by the material conveying screw fixed on the supporting rod under high-speed rotation and finally discharged from the blanking port, the coarse lactic acid material can be continuously added into the material containing barrel, and the coarse lactic acid material can be screened and discharged from the material containing barrel, so that the efficiency of lactic acid production is improved.)

1. A production method of lactic acid powder comprises the following steps:

s1: firstly, rice and cellulose are placed in a pulverizer, the rice and the cellulose are fully mixed through the pulverizer, and are subjected to cutting treatment through a cutter inside the pulverizer to obtain an initial raw material mixture, and then the initial raw material mixture is added into a grinding disc to be fully ground to obtain a powdered raw material;

s2: adding the powdered raw material obtained in S1 into a high-pressure container, adding organic acid into the high-pressure container, maintaining the pressure for 20min at the pressure of 0.294MPa, and fully hydrolyzing to obtain mono-glycogen;

s3: adding the monosaccharide round obtained in the step S2 into a reaction container, simultaneously adding rhizopus strains into the reaction container, and requiring that rhizopus and the monosaccharide round are fully mixed, and keeping the temperature at 15-25 ℃ under the condition that the pH value is 5.5-6.5 for full fermentation to obtain lactic acid;

S4: adding the finished product lactic acid into a lactic acid reaction kettle, heating to 80-90 ℃, adding calcium lactate powder into the lactic acid reaction kettle, quickly stirring to fully dissolve the calcium lactate powder, then adding silicon dioxide into the lactic acid reaction kettle, stirring and mixing again to fully and uniformly mix the solution in the reaction kettle, finally carrying out reduced pressure distillation to obtain solid lactic acid, and then carrying out rolling and filtering on the solid lactic acid by a twisting and screening machine to obtain L-lactic acid powder;

wherein the twisting screening machine that uses in S4, including device shell (1), its characterized in that: one side of device shell (1) is equipped with feed inlet (2), the one end of device shell (1) is equipped with motor (3), be equipped with in device shell (1) and hold structure (5), hold structure (5) including flourishing feed cylinder (51), flourishing feed cylinder (51) are located in device shell (1), the one end of motor (3) is connected with and rolls structure (4), roll structure (4) including blanking head (41), feed opening (42), grind briquetting (43), biography material spiral (44), bracing piece (45), top cap (46), pivot (47) and screen cloth (49), top cap (46) with be equipped with a plurality ofly between blanking head (41) grind briquetting (43) and a plurality of screen cloth (49), it is a plurality of grind briquetting (43) and a plurality of set up in turn between screen cloth (49), and a plurality of grind briquetting (43) and a plurality of the both ends of screen cloth (49) are fixed connection respectively in blanking head (41) With top cap (46), one side fixedly connected with of top cap (46) pivot (47), the other end fixed connection of pivot (47) in motor (3), pivot (47) with device shell (1) rotates to be connected, blanking head (41) with the device shell rotates to be connected, blanking head (41) with fixedly connected with between top cap (46) bracing piece (45), bracing piece (45) side fixedly connected with pass material spiral (44), blanking head (41) one side still is equipped with feed opening (42).

2. The method for producing lactic acid powder according to claim 1, characterized in that: roller compaction structure (4) still include inlet pipe (48), inlet pipe (48) are "L" type structure, just the one end of inlet pipe (48) with feed inlet (2) are linked together.

3. The method for producing lactic acid powder according to claim 1, characterized in that: the containing structure (5) further comprises a sliding groove (56), the sliding groove (56) is formed in the side face of the blanking head (41), and one end of the material containing barrel (51) is connected with the device shell (1) in a sliding mode through the sliding groove (56).

4. The method for producing lactic acid powder according to claim 1, characterized in that: the containing structure (5) further comprises a resisting block (55) and a convex block (54), the resisting block (55) is fixedly connected to the side face of the rotating shaft (47), the side face of the resisting block (55) is connected with one end of the material containing barrel (51) in a sliding mode, and the convex block (54) is arranged on the side face of the resisting block (55).

5. The method for producing lactic acid powder according to claim 1, characterized in that: the containing structure (5) further comprises a spring (52), one end of the spring (52) is fixedly connected to the device shell (1), and the other end of the spring (52) is fixedly connected to one end of the material containing barrel (51); hold structure (5) and still include pulley (53), pulley (53) are equipped with a plurality ofly, and are a plurality of pulley (53) are located flourishing feed cylinder (51) with between device shell (1), flourishing feed cylinder (51) pass through pulley (53) with device shell (1) sliding connection.

Technical Field

The invention relates to the field of lactic acid preparation, in particular to a production method of lactic acid powder.

Background

The L-lactic acid powder is natural L-lactic acid powder produced by fermenting glucose. It is a mixture of L-lactic acid and L-calcium lactate. The product is white granule or powder, has mild and pure sour taste, is easy to dissolve in hot water, and has deliquescence phenomenon. It is often used as food or feed additive, and can improve food flavor and prolong shelf life. Can be widely used as food flavor modifier in the industries of can, bread, flour, cake, feed, etc. The pH value adjusting agent is particularly suitable for adjusting the acidity of various solid and powdery foods, has excellent pH value adjusting function and bacteriostatic ability, can effectively inhibit the growth of microorganisms, and prolongs the shelf life of the foods.

However, when the production of L-lactic acid powder is carried out, since dried lactic acid is often in the form of a block and is inconvenient to package, the conventional crushing apparatus performs crushing and screening in two steps.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a production method of lactic acid powder.

The technical scheme adopted by the invention for solving the technical problems is as follows: a production method of lactic acid powder comprises the following steps:

s1: firstly, rice and cellulose are placed in a pulverizer, the rice and the cellulose are fully mixed through the pulverizer, and are subjected to cutting treatment through a cutter inside the pulverizer to obtain an initial raw material mixture, and then the initial raw material mixture is added into a grinding disc to be fully ground to obtain a powdered raw material;

S2: adding the powdered raw material obtained in S1 into a high-pressure container, adding organic acid into the high-pressure container, maintaining the pressure for 20min at the pressure of 0.294MPa, and fully hydrolyzing to obtain mono-glycogen;

s3: adding the monosaccharide round obtained in the step S2 into a reaction container, simultaneously adding rhizopus strains into the reaction container, and requiring that rhizopus and the monosaccharide round are fully mixed, and keeping the temperature at 15-25 ℃ under the condition that the pH value is 5.5-6.5 for full fermentation to obtain lactic acid;

s4: adding the finished product lactic acid into a lactic acid reaction kettle, heating to 80-90 ℃, adding calcium lactate powder into the lactic acid reaction kettle, quickly stirring to fully dissolve the calcium lactate powder, then adding silicon dioxide into the lactic acid reaction kettle, stirring and mixing again to fully and uniformly mix the solution in the reaction kettle, finally carrying out reduced pressure distillation to obtain solid lactic acid, and then carrying out rolling and filtering on the solid lactic acid by a twisting and screening machine to obtain L-lactic acid powder;

wherein S4 uses twists with fingers sieve machine, including the device shell, one side of device shell is equipped with the feed inlet, the one end of device shell is equipped with the motor, be equipped with in the device shell and hold the structure, it includes the material containing barrel to hold the structure, the material containing barrel is located in the device shell, the one end of motor is connected with rolls the structure, it includes blanking head, feed opening, grinds the piece, passes the material spiral, bracing piece, top cap, pivot and screen cloth to roll the structure, the top cap with be equipped with a plurality of between the blanking head grind the piece and a plurality of the screen cloth, a plurality of it sets up in turn between the screen cloth to grind the piece and a plurality of the both ends of screen cloth fixed connection respectively in blanking head with the top cap, one side fixedly connected with of top cap the pivot, the other end fixed connection of pivot in the motor, the pivot with the device shell rotates to be connected, the blanking head with fixedly connected with between the top cap the bracing piece, bracing piece side fixedly connected with pass the material spiral, blanking head one side still is equipped with the feed opening.

Preferably, in order to conveniently add in raw material to lactic acid rolling kibbling in-process, promote kibbling efficiency, the structure of rolling still includes the inlet pipe, the inlet pipe is "L" type structure, just the one end of inlet pipe with the feed inlet is linked together.

Preferably, in order to prevent lactic acid powder from sliding out through the gap and causing waste of raw materials, the holding structure further comprises a sliding groove, the sliding groove is formed in the side face of the blanking head, and one end of the holding material barrel is connected with the device shell in a sliding mode through the sliding groove.

Preferably, in order to enable the material containing barrel to shake through repeated sliding between the convex block and the material containing barrel and further improve the rolling effect on the lactic acid, the containing structure further comprises a supporting block and a convex block, the supporting block is fixedly connected to the side face of the rotating shaft, the side face of the supporting block is in sliding connection with one end of the material containing barrel, and the convex block is arranged on the side face of the supporting block.

Preferably, can reply for the position that makes flourishing feed cylinder for flourishing feed cylinder can carry out the shake that relapses, thereby promote the effect of rolling to lactic acid, it still includes the spring to hold the structure, the one end fixed connection of spring in the device shell, the other end fixed connection of spring in the one end of flourishing feed cylinder, for make the slip between flourishing feed cylinder and the device shell more smooth, thereby reduce the friction between flourishing feed cylinder and the device shell, it still includes the pulley to hold the structure, the pulley is equipped with a plurality ofly, and is a plurality of the pulley is located flourishing feed cylinder with between the device shell, flourishing feed cylinder pass through the pulley with device shell sliding connection.

The invention has the beneficial effects that:

(1) the invention provides a production method of lactic acid powder, which is characterized in that a rolling structure is arranged in a material containing barrel, so that a rolling block for rolling lactic acid and the material containing barrel are arranged in an inscribed mode, when a top cover is driven to drive the rolling block to rotate, coarse lactic acid material in the material containing barrel is rolled by the rolling block, a screen is arranged between the top cover and a discharging head, and the screen and the rolling block are alternately arranged, so that the rolling block can screen and filter the lactic acid while rolling.

(2) The invention provides a production method of lactic acid powder, which is characterized in that screened-in fine lactic acid materials are gradually conveyed to one end of a blanking head by a material conveying screw fixed on a support rod under high-speed rotation and are finally discharged from a blanking port, coarse lactic acid materials can be continuously added in the process of crushing lactic acid, and meanwhile, the coarse lactic acid materials are ground, screened and discharged, so that the efficiency of lactic acid production is improved.

Drawings

FIG. 1 is a flow chart of a method of the present invention;

FIG. 2 is a schematic view of the overall structure of a twisting and screening machine used in the present invention;

FIG. 3 is a schematic view of the coupling structure of the device housing and the crushing structure shown in FIG. 2;

FIG. 4 is an enlarged view of portion A of FIG. 3;

FIG. 5 is an enlarged view of the portion B shown in FIG. 3;

fig. 6 is a schematic structural view of the laminated structure shown in fig. 2.

In the figure: 1. the device shell, 2, feed inlet, 3, motor, 4, roll the structure, 41, feed head, 42, feed opening, 43, roll the piece, 44, pass the material spiral, 45, bracing piece, 46, top cap, 47, pivot, 48, inlet pipe, 49, screen cloth, 5, hold the structure, 51, holding cylinder, 52, spring, 53, pulley, 54, lug, 55, support the piece, 56, spout.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 6, a method for producing lactic acid powder includes the following steps:

s1: firstly, rice and cellulose are placed in a pulverizer, the rice and the cellulose are fully mixed through the pulverizer, and are subjected to cutting treatment through a cutter inside the pulverizer to obtain an initial raw material mixture, and then the initial raw material mixture is added into a grinding disc to be fully ground to obtain a powdered raw material;

S2: adding the powdered raw material obtained in S1 into a high-pressure container, adding organic acid into the high-pressure container, maintaining the pressure for 20min at the pressure of 0.294MPa, and fully hydrolyzing to obtain mono-glycogen;

s3: adding the monosaccharide round obtained in the step S2 into a reaction container, simultaneously adding rhizopus strains into the reaction container, and requiring that rhizopus and the monosaccharide round are fully mixed, and keeping the temperature at 15-25 ℃ under the condition that the pH value is 5.5-6.5 for full fermentation to obtain lactic acid;

s4: adding the finished product lactic acid into a lactic acid reaction kettle, heating to 80-90 ℃, adding calcium lactate powder into the lactic acid reaction kettle, quickly stirring to fully dissolve the calcium lactate powder, then adding silicon dioxide into the lactic acid reaction kettle, stirring and mixing again to fully and uniformly mix the solution in the reaction kettle, finally carrying out reduced pressure distillation to obtain solid lactic acid, and then carrying out rolling and filtering on the solid lactic acid by a twisting and screening machine to obtain L-lactic acid powder;

wherein S4 used twists with fingers sieve machine, including device shell 1, one side of device shell 1 is equipped with feed inlet 2, device shell 1 'S one end is equipped with motor 3, be equipped with in the device shell 1 and hold structure 5, it includes material containing barrel 51 to hold structure 5, material containing barrel 51 locates in the device shell 1, motor 3' S one end is connected with rolling structure 4, rolling structure 4 includes blanking head 41, feed opening 42, rolls piece 43, passes material spiral 44, bracing piece 45, top cap 46, pivot 47 and screen cloth 49, top cap 46 with be equipped with a plurality ofly between blanking head 41 roll piece 43 with a plurality ofly screen cloth 49, it is a plurality of roll piece 43 with a plurality ofly set up in turn between the screen cloth 49, and a plurality of roll piece 43 with a plurality ofly the both ends of screen cloth 49 respectively fixed connection in blanking head 41 with top cap 46, one side fixed connection of top cap 46 has pivot 47, the other end fixed connection of pivot 47 in motor 3, pivot 47 with device shell 1 rotates to be connected, blanking head 41 with the device shell rotates to be connected, blanking head 41 with fixedly connected with between top cap 46 bracing piece 45, bracing piece 45 side fixedly connected with pass material spiral 44, blanking head 41 one side still is equipped with feed opening 42.

As a technical optimization scheme of the invention, the rolling structure 4 further comprises a feeding pipe 48, the feeding pipe 48 is in an L-shaped structure, and one end of the feeding pipe 48 is communicated with the feeding port 2, so that feeding is conveniently performed in the process of rolling and crushing lactic acid, the crushing efficiency is improved, and the feeding pipe 48 with the L-shaped structure is arranged to buffer raw materials in the process of entering the raw materials, so that the raw materials are not completely gathered at one end of the rolling block 43.

As a technical optimization scheme of the present invention, the containing structure 5 further includes a chute 56, the chute 56 is disposed on a side surface of the blanking head 41, one end of the material containing barrel 51 is slidably connected to the device housing 1 through the chute 56, so as to prevent lactic acid powder from slipping out through a gap, which results in waste of raw materials.

As a technical optimization scheme of the present invention, the containing structure 5 further includes a resisting block 55 and a protrusion 54, the resisting block 55 is fixedly connected to a side surface of the rotating shaft 47, a side surface of the resisting block 55 is slidably connected to one end of the material containing barrel 51, the protrusion 54 is disposed on a side surface of the resisting block 55, so that the material containing barrel 51 is shaken through repeated sliding between the protrusion 54 and the material containing barrel 51, and further a rolling effect on lactic acid is improved.

As a technical optimization scheme of the present invention, the holding structure 5 further includes a spring 52, one end of the spring 52 is fixedly connected to the device case 1, the other end of the spring 52 is fixedly connected to one end of the material containing barrel 51, the holding structure 5 further includes a plurality of pulleys 53, the plurality of pulleys 53 are disposed between the material containing barrel 51 and the device case 1, the material containing barrel 51 is slidably connected to the device case 1 through the pulleys 53, so that the position of the material containing barrel 51 can be restored, the material containing barrel 51 can be repeatedly shaken, and the rolling effect on lactic acid can be improved.

When the device is used, firstly, the whole device is placed on a horizontal ground, the motor 3 is electrically connected with an external power supply, then coarse lactic acid materials are poured into the material containing barrel 51 through the material inlet 2 and the material inlet pipe 48, the motor 3 is started, the motor 3 drives the top cover 46 to rotate through the rotating shaft 47, the rolling block 43 connected on the top cover 46 starts to roll and crush the coarse lactic acid materials, the coarse lactic acid materials can be rolled comprehensively due to the rotation of the top cover 46 and the rolling block 43, the rolling block 43 and the screen 49 are arranged alternately, so that the lactic acid is screened and filtered while the coarse lactic acid materials are rolled in the rotating process of the screen 49 and the rolling block 43, the lactic acid with finer particles can enter the inside through the screen 49, the material conveying screw 44 is arranged on the side surface of the supporting rod 45 arranged between the top cover 46 and the blanking head 41, when the rotating shaft 47 rotates highly, along with passing the rotation of material spiral 44 for the lactic acid that gets into inside finer granule can be gradually along with passing the rotation of material spiral 44 and be conducted to blanking head 41 direction, finally discharge by feed opening 42, at the in-process that rolls, be fixed in the pivot 47 support the lug 54 that the piece 55 side set up can relapse along with rotating and conflict with flourishing feed cylinder 51, thereby make flourishing feed cylinder 51 carry out reciprocating shake, make the thick material of lactic acid in flourishing feed cylinder 51 roll more high-efficiently.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.