CN1240752C - Method and apparatus for producing fibroin powder - Google Patents

Abstract

The present invention belongs to a special invention of the swelling technology. The present invention is especially suitable for the process that fibroin whose sericin is removed is added with high pressure saturated steam in a closed container, the pressure is suddenly reduced, and the fibroin becomes into fibroin powder. The present invention provides a method and an apparatus for producing fibroin powder, which have the advantages of no chemical pollution, high product yield and low cost. The method for producing fibroin powder of the present invention has the invention essential point that fibroin whose sericin is removed is put into a closed container from a blasting opening; the blasting opening is tightly sealed by a blasting opening cover provided with a blasting film, which leads a pressure releasing box and the closed container to be oppositely connected; saturated steam of 2.5 to 3MPa is inputted into the closed container for 6 to 15 minutes; the blasting film is forcedly broken by an impact spearhead, which generates steam explosion; the fibroin enters the pressure releasing box at a high speed to be pulverized into fibroin powder.

Description

A kind of manufacture method of fibroin powder and equipment thereof

Technical field

The invention belongs to the invention of migrating of puffing technique, be particularly useful for the silk element of sericin removal is fed high-pressure saturated water vapor in encloses container, decompression makes it become fibroin powder suddenly again.

Background technology

Fibroin powder is a pure protein, include 18 seed amino acids and various trace elements, because its figure becomes fine shaft-like, dispersiveness is even especially, can make the dispersion agent and the fabric softener of dyestuff, coating, leather polish, again because there is the hydrophilic factor in its structure, if it is applied on the skin, can absorb with the variation of skin temperature and humidity and release moisture content, so fibroin powder still is the basic raw material of makeup.But prior art is produced the method for fibroin powder and is still used chemicals such as acid, alkali earlier the silk element to be carried out embrittlement, removes chemicals through washing repeatedly then, drying again, operations such as pulverizing.Not only the chemicals consumption is big for this method, and water is many, causes environmental pollution, and the product loss is many in crushing process, and also owing to complex process, product yield is low, makes its manufacturing cost height.

Summary of the invention

The objective of the invention is to provide a kind of manufacture method and equipment thereof that does not have chemical pollution, product yield height, fibroin powder that cost is low for the shortcoming that overcomes prior art.

The present invention can realize by following measure: a kind of manufacture method of fibroin powder, the silk element that the steps include: (1) will to take off silk gum is packed into by the explosion mouth in the encloses container, and seal tight explosion mouth with the explosion flap that has rupture disk: (2) make the diffusion case dock with encloses container; (3) in encloses container, feed the saturated vapor of 2.5～3MPa by pipeline, kept its pressure 6～15 minutes, owing to form by the crystallizing field and the noncrystalline domain of fibroin through the silk cellulose fiber of sericin removal, its crystallizing field is to be made of β one folded layer construction, the peptide chain marshalling, hydrogen bond between the adjacent peptide chain and intermolecular gravitation make its bonded very tight, have higher degree of crystallinity and orientation degree, and the noncrystalline domain peptide chain of silk element is irregular dense arrangement, and it is crooked and around knot, therefore, under the saturated vapor effect of high temperature and high pressure, the silk cellulose fiber is loosened, softening, the macromolecular orientation degree reduces; That continues makes original crystalline region and non-crystalline region that the disorientation phenomenon partly take place by the segmental thermal motion, and deadlocked point begins to throw off between fibroin fiber, and orientation degree reduces, the regularity variation that the noncrystalline domain macromolecular chain is arranged, and intermolecular reactive force reduces; Fibroin fiber under condition of high voltage is subjected to enforce compression and has put aside certain compression energy simultaneously; (4) force rupture disk to break by impacting spearhead, generation vapour is quick-fried, the plain diffusion case that pours at a high speed of silk, in this process, fibroin is torn by powerful steam flow, shear and fibroin fiber under the comprehensive action of burst release, the disintegration of accumulative compression energy, add fibroin fiber and be in before quick-fried and loosen and the reduction state by vapour; Therefore, fibroin is ground into fibroin powder; (5) diffusion case and encloses container are separated, from the diffusion case, collect fibroin powder; (6) fibroin powder is dewatered.

The present invention can also be simultaneously plain at the silk of the sericin removal of packing in encloses container, add some urea again, its weight is 1～5% of silk element, because urea can decompose ammonification and carbonic acid gas under the high-pressure water vapor effect, ammonia is alkalescence, it produces destructive force to the combination of fibroin molecule, and this just focuses on the degree of loosening and the reduction state of fibroin fiber intensity in the encloses container more, and the silk element is the easier fibroin powder that is ground into when vapour is quick-fried.It is proper in the plain weight of 1～5% silk that evidence adds the quantity of urea, as less than 1%, and its DeGrain, greater than 5% o'clock, the effect of increase was also not obvious.

The manufacture method institute use equipment of a kind of silk element of the present invention, comprise the encloses container that its inner chamber of fixed and high-pressure saturated water vapor source join, the one end is provided with the explosion mouth and has the explosion flap of rupture disk, is provided with one and impacts spearhead in the radially guide groove of explosion flap; Be positioned at encloses container explosion oral-lateral and be provided with the diffusion case and can dock with encloses container by its import, there is the hole of a plurality of band ventilating covers the end face of diffusion case and two sides; Also comprise a dewatering drying device.In encloses container and form that the diffusion case docks, can adopt following several scheme: four wheels that roll are in orbit established in diffusion case bottom surface, the gabarit of the inlet of diffusion case and encloses container end adapts, when encloses container docks with the diffusion case, be positioned at two of diffusion case on the suction side with its hinged connecting rod can by sieve female be located at encloses container on the U-shaped piece be connected; Four wheels that roll are in orbit established in diffusion case bottom surface, and above-mentioned track and encloses container longitudinal axis equality arrange that the gabarit of the explosion flap of the inlet of described diffusion case and encloses container adapts.Pivot pin that plays ligation can insert in the concentric aperture of the explosion mouth seat of encloses container and diffusion case end sleeve; The diffusion case is fixed on the ground, and the soft telescopic of taper two ends are enclosed within respectively on the periphery of described explosion flap and described diffusion tank inlet, with the fixing soft telescopic of the taper two ends of clip.

The present invention compared with prior art has following advantage: because the inventive method is not used a large amount of acid, chemicals such as alkali carry out embrittlement in advance to the silk element to be handled, therefore stopped pollution to environment, used the encloses container of band rupture disk and cooperated suitable diffusion case with it owing to the inventive method again, formed fibroin powder all enters in the diffusion case when the silk element is quick-fried by vapour, almost not loss, be it can also be seen that by described solution: the inventive method technology is simple, equipment therefor is also few, add the yield height of product, so its production cost is remarkable reduction.

Description of drawings

Fig. 1 is first kind of structural representation of the inventive method equipment used

Fig. 2 is second kind of structural representation of the inventive method equipment used

Fig. 3 is the third structural representation of the inventive method equipment used

Among the figure: 1, switch-valve 2, reducing valve 3, safety valve 4, tensimeter 5, encloses container 6, explosion mouth 7, pivot pin 8, impact spearhead 9, diffusion tank inlet 10, diffusion case 12, rupture disk 13, explosion flap 14, track 15, wheel 16, connecting rod 17, U-shaped piece 18, the soft sleeve 19 of taper, clip 20, sleeve 21, explosion mouth seat

Embodiment

Now the inventive method and equipment used are described in further detail in conjunction with first kind of structure formation:

Referring to Fig. 1, mother sieve who unscrews on the connecting rod 16 makes connecting rod break away from U-shaped piece 17, push away diffusion case 10 to the right, unclamp mother sieve on the explosion flap 13, take off explosion flap 13, in encloses container 5, pack into 6 kilograms by the explosion mouth and to have taken off the silk element of silk gum, load onto rupture disk 12 and explosion lid 13 and it is reinforced at the end face of explosion mouth 6 with mother sieve, to Zola's diffusion case 10 diffusion tank inlet 9 is near the end of encloses container 5, the U-shaped piece that two connecting rods 16 are put into is respectively separately also reinforced it with mother sieve, open switch-valve 1 and reducing valve 2, the pressure of adjusting reducing valve is that 2.5MPa works as when the saturated vapor ejection is arranged in the switch-valve 1, close switch-valve 1, the adjustment pressure of safety valve 3 is 2.8MPa, when tensimeter 4 indication 2.5MPa, continue 10～15 minutes, if (safety valve is adjusted into 3.3MPa) its time length can be 6～10 minutes when reducing valve was adjusted into 3MPa, close reducing valve 2, packing into to impact spearhead 8 and knock the impact spearhead in the guide groove of explosion flap breaks the rupture disk of heaving 12, silk element in the encloses container pours the diffusion case 10 at a high speed and is ground into fibroin powder from explosion mouth 6 and diffusion tank inlet 9, pours the gas that contains fibroin powder in the diffusion case and releases by the hole of diffusion box top and the saturating vapour cover of both sides band.Unclamp mother sieve on the connecting rod 16, take off connecting rod 16, push diffusion case 10 open, from the diffusion case, collect fibroin powder, put into the fibroin powder that dewatering drying device obtains dehydration again.The present invention can also put into the urea of its weight 1～5% again in dress silk element in encloses container, because urea decomposes ammonification and carbonic acid gas under the effect of high temperature and high pressure saturated vapor, pressure in the encloses container is raise, so feed saturation vapour pressure just between 2.5～2.7MPa, the time of its maintenance should be between 6～8 minutes, urea amount for a long time, the pressure that reducing valve is adjusted should hang down, the time that is kept also should lack; The urea amount that adds is few, and the pressure that reducing valve is adjusted should be higher, and the time length then should be more.

Fig. 2 represents second kind of structure of the inventive method equipment used, the difference of it and first kind of structure only is the docking site of encloses container 5 and diffusion case 10 and both mode of connection, the docking site of present embodiment is that the sleeve 20 that constitutes diffusion tank inlet 9 has contained the explosion flap 13 of encloses container and the periphery of explosion mouth seat 21, its mode of connection is to insert in the radial hole of sleeve 20 and explosion mouth seat 21 by pivot pin 7, in connection state, impact spearhead guide groove on the sleeve 20 and the impact spearhead guide groove on the explosion flap 13 match.

Fig. 3 represents the third structure formation of the inventive method equipment used, encloses container 5 and diffusion case 10 among this embodiment all are fixed on the ground, the explosion flap 13 of encloses container and the sleeve 20 of diffusion case are at a distance of a segment distance, and diffusion tank inlet 9 is greater than explosion mouth 6, its both connection be by be enclosed within on the sleeve 20 and explosion flap 13 on soft tapered sleeve and fix with clip 19.When encloses container 5 dress silks are plain, unclamp the clip 19 on the explosion flap 13, make the small end of soft tapered sleeve 18 break away from explosion flap 13, pack into and refill rupture disk 12 behind the silk element, the small end of explosion flap 13 and soft taper sheath, in encloses container, feed high-pressure saturated water vapor then, just can carry out in succession and above-mentioned first kind of remaining schedule of operation of embodiment.

Claims (6)

1, a kind of manufacture method of fibroin powder the steps include:

(1) will take off that the silk of silk gum is plain packs in the encloses container (5) by explosion mouth (6), seal tight explosion mouth (6) with the explosion flap (13) that has rupture disk (12);

(2) diffusion case (10) is docked with encloses container (5);

(3) saturated vapor of input 2.5～3MPa in encloses container (5) keep-uped pressure 6～15 minutes;

(4) force rupture disk (12) to break by impacting spearhead (8), it is quick-fried to produce vapour, and silk is plain to be entered diffusion case (10) and be ground into fibroin powder at a high speed;

(5) diffusion case (10) and encloses container (5) are separated, collect fibroin powder from diffusion case (10);

(6) fibroin powder is dewatered.

2, according to the manufacture method of the described a kind of fibroin powder of claim 1, it is characterized in that: packing in encloses container (5) also adds urea when taking off silk rolling collodion silk element, its weight is 1～5% of silk element.

3, a kind of manufacture method equipment used of fibroin powder, it is characterized in that: comprise the encloses container (5) that its inner chamber of fixed and high-pressure saturated water vapor source join, the one end is provided with explosion mouth (6) and has the explosion flap (13) of rupture disk (12), is provided with one and impacts spearhead (8) in the radially guide groove of explosion flap (13); Be positioned at encloses container explosion oral-lateral and be provided with diffusion case (10), dock with encloses container by diffusion tank inlet (9), the end face of diffusion case and two sides are provided with the hole of a plurality of band ventilating covers; A dewatering drying device.

4, the manufacture method equipment used of a kind of fibroin powder according to claim 3, it is characterized in that: the four wheels (15) of diffusion case (10) bottom surface is positioned on the track (14), the end gabarit of diffusion tank inlet (9) and encloses container adapts, and two are positioned at diffusion tank inlet side and the connecting rod (16) hinged with the diffusion case and are connected with U-shaped piece (17) on being located at encloses container by nut.

5, the manufacture method equipment used of a kind of fibroin powder according to claim 3, the four wheels (15) that it is characterized in that diffusion case (10) bottom surface is positioned on the track (14), the gabarit of the explosion flap (13) of diffusion tank inlet (9) and encloses container (5) adapts, and pivot pin (7) can insert in the concentric aperture of the explosion mouth seat (21) of encloses container and diffusion case end sleeve (20).

6, the manufacture method equipment used of a kind of fibroin powder according to claim 3, it is characterized in that diffusion case (10) is fixed on the ground, the two ends of the soft sleeve of taper (18) are enclosed within respectively on the periphery of described explosion flap (13) and diffusion tank inlet (9), and with the fixing soft telescopic of the taper two ends of clip (19).

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