阅读说明：本技术 一种防腐剂及其制备方法 (Preservative and preparation method thereof ) 是由 不公告发明人 于 2019-10-31 设计创作，主要内容包括：本发明属于防腐技术领域,具体的说是一种防腐剂及其制备方法,包括制备该防腐剂的加工箱；本发明通过将防腐剂设置成外表面包裹有保护壳的颗粒状,使得该防腐剂的保护壳对面包的发酵起到促进作用,且保护壳壁材在低温时不会破壁,从而使得保护壳内部的防腐剂颗粒不与发酵的面包接触反应,当面包经过高温烘烤后,保护壳壁材在高温环境下液化或汽化,从而将内部的防腐剂颗粒暴露在外部,对烘烤成型后的面包起到防腐的作用；且本发明通过设置的加工箱对防腐剂进行制取,增强了制得防腐剂的均匀性与有效性,从而有效的促进了防腐剂的制成以及提高防腐剂的使用效果。(The invention belongs to the technical field of corrosion prevention, and particularly relates to a preservative and a preparation method thereof, which comprises a processing box for preparing the preservative; according to the bread preservative, the preservative is arranged into the granular shape of which the outer surface is wrapped by the protective shell, so that the protective shell of the preservative plays a role in promoting the fermentation of bread, and the wall material of the protective shell cannot be broken at a low temperature, so that the preservative particles in the protective shell do not contact and react with the fermented bread; in addition, the preservative is prepared by the processing box, so that the uniformity and the effectiveness of the prepared preservative are enhanced, the preparation of the preservative is effectively promoted, and the using effect of the preservative is improved.)

1. A preservative characterized by: the preservative comprises preservative particles and a protective shell wrapped on the outer surface of the preservative particles, wherein the preservative particles comprise, by mass, 50-55% of sodium sorbate, 35-45% of potassium sorbate, 4.2-4.5% of sodium dehydroacetate, 0.5-0.8% of sorbic acid and the balance of water; the diameter of the preservative particles is 20-30 meshes; the wall thickness of the protective shell accounts for 1% -5% of the total; the wall material of the protective shell contains 0.3-5% of monoglyceride, 5-50% of diglyceride, 10-20% of medium-chain triglyceride, 5-10% of lecithin and 0.2% of hydrogenated oil.

2. A preservative according to claim 1, wherein: the preservative granule also comprises cane sugar, and the mass part of the cane sugar is 3% -5% of the total mass of other components in the preservative granule.

3. A process for the preparation of a preservative suitable for use in the preparation of a preservative according to any one of claims 1-2, wherein:

s1: mixing 4 parts of monoglyceride, 20 parts of diglyceride, 15 parts of medium-chain triglyceride and 8 parts of lecithin with 0.2 part of hydrogenated oil, uniformly stirring, vaporizing by a high-temperature box to prepare protective shell wall material powder, and spreading the protective shell wall material powder on the bottom surface of a processing box;

s2: mixing 50 parts of sodium sorbate, 40 parts of potassium sorbate, 4 parts of sodium dehydroacetate, 0.6 part of sorbic acid and 3 parts of cane sugar with 100 parts of drinking water, uniformly stirring, drying to prepare a plate block, keeping the thickness of the plate block at 0.6-0.8mm, and then flatly paving the plate block on the upper surface of a forming plate of a processing box;

s3: and starting a processing box switch to enable the forming plate to make the hardening blocks into granules with the diameter of 20-30 meshes, fully contacting and bonding the hardening blocks with the wall material powder of the protective shell through the spiral fan blades on the bottom surface of the box body, gradually cooling and condensing in the process to finally prepare the required preservative, and collecting and storing the prepared preservative by using a collecting box at the bottom end of the box body.

4. A method of preparing a preservative according to claim 3, wherein: the processing box used in the S1-S3 comprises a shell (1) and a top cover (2), wherein the top cover (2) is installed at the top end of the shell (1), a first motor (21) is arranged on the top cover (2), the bottom end of the first motor (21) is connected with a rotating rod (22), a ball screw is arranged at the bottom end of the rotating rod (22), and a sliding ring (23) is connected to the ball screw; the bottom end of the slip ring (23) is connected with a pressing plate (3), and a group of uniformly distributed ejector pins (31) are arranged at the bottom end of the pressing plate (3); a forming plate (11) is arranged on the side wall of the shell (1) at the bottom end of the pressing plate (3), a heating net is laid on the forming plate (11), the heating net can heat the upper surface of the forming plate (11), a group of forming holes (12) which are uniformly distributed are arranged in the forming plate (11), and the size and the shape of the forming holes (12) are matched with the distribution form of the ejector pins (31) on the pressing plate (3); a funnel-shaped collecting cavity (4) is arranged on the side wall of the bottom end of the shell (1), and the bottom end of the collecting cavity (4) is connected with a mixing cavity (5); the improved mixing device is characterized in that a second motor (13) is arranged on the bottom surface of the shell (1), the top end of the second motor (13) is connected with a spiral fan blade (6) through a rotating shaft, the spiral fan blade (6) is made of elastic rubber materials, the spiral fan blade (6) is located inside the mixing chamber (5), the edge of the spiral fan blade (6) is in contact with the side wall of the mixing chamber, a storage chamber (61) is arranged inside the spiral fan blade (6), protective shell wall material powder is filled inside the storage chamber (61), a group of discharge holes (62) are formed in the upper surface of the storage chamber (61), and the discharge holes (62) can enable the protective shell wall material powder inside the storage chamber (61) to flow out; a discharge hole (14) is formed in the shell (1) at the bottom end of the mixing cavity (5), and a collecting box (7) is connected to the bottom end of the discharge hole (14); the shell (1) is provided with a controller, and the controller controls the automatic operation of the processing box.

5. The method for preparing a preservative according to claim 4, wherein: the cross-sectional shape of the forming hole (12) is set to be circular, and the radius of the forming hole (12) is kept between 0.6 mm and 0.8 mm.

6. The method for preparing a preservative according to claim 4, wherein: the included angle between the side wall of the collecting cavity (4) and the horizontal plane is set to be 30-45 degrees, and the upper surface of the side wall of the collecting cavity (4) is provided with a collecting groove (41); the bottom surface of the collecting tank (41) is set to be a rough surface, and the bottom end of the collecting tank (41) is communicated with the side wall of the mixing cavity (5).

Technical Field

The invention belongs to the technical field of corrosion prevention, and particularly relates to a preservative and a preparation method thereof.

Background

The main action principle of the food preservative can inhibit the growth of microorganisms in food, thereby protecting the food from or less suffering from the corrosion of bacteria and prolonging the shelf life of the food. However, for fermented foods, such as bread and steamed bread, the foods are prepared by fermenting with microbial yeasts, so that the common preservative and antistaling agent cannot be used.

The common food preservative calcium propionate can kill most microorganisms but not yeasts, so that the common food preservative calcium propionate is widely applied to the bread production industry, but the use of the calcium propionate has two weaknesses: firstly, the safety and taste of food are affected to a certain extent when the using amount is large, and secondly, the calcium propionate cannot kill saccharomycetes, so that the baked food finished product is easy to be subjected to secondary pollution of the saccharomycetes, and the preservation period of the produced food such as bread is greatly shortened.

In view of this, the present invention provides a preservative and a preparation method thereof, which can effectively promote the preparation of the preservative and improve the use effect of the preservative.

Disclosure of Invention

In order to make up the defects of the prior art, the invention provides the preservative and the preparation method thereof, which can effectively promote the preparation of the preservative and improve the using effect of the preservative.

The technical scheme adopted by the invention for solving the technical problems is as follows: a preservative comprises preservative particles and a protective shell wrapped on the outer surface of the preservative particles, wherein the preservative particles comprise 50-55% of sodium sorbate, 35-45% of potassium sorbate, 4.2-4.5% of sodium dehydroacetate, 0.5-0.8% of sorbic acid and the balance of water in parts by mass; the diameter of the preservative particles is 20-30 meshes; the wall thickness of the protective shell accounts for 1% -5% of the total; the wall material of the protective shell contains 0.3-5% of monoglyceride, 5-50% of diglyceride, 10-20% of medium-chain triglyceride, 5-10% of lecithin and 0.2% of hydrogenated oil.

Preferably, the preservative granule further comprises sucrose, and the mass part of the sucrose is 3% -5% of the total mass of other components in the preservative granule; the sucrose can be used as a sweetening agent and a leavening agent to improve the mouthfeel of the baked food; and the sucrose can effectively inhibit the growth of harmful microorganisms and enhance the hardening degree of the preservative granules, so that the preservative granules can be better molded and play a role, and the using effect of the preservative is improved.

A method for preparing the preservative, which is used for preparing the preservative:

s1: mixing 4 parts of monoglyceride, 20 parts of diglyceride, 15 parts of medium-chain triglyceride and 8 parts of lecithin with 0.2 part of hydrogenated oil, uniformly stirring, vaporizing by a high-temperature box to prepare protective shell wall material powder, and spreading the protective shell wall material powder on the bottom surface of a processing box;

s2: mixing 50 parts of sodium sorbate, 40 parts of potassium sorbate, 4 parts of sodium dehydroacetate, 0.6 part of sorbic acid and 3 parts of cane sugar with 100 parts of drinking water, uniformly stirring, drying to prepare a plate block, keeping the thickness of the plate block at 0.6-0.8mm, and then flatly paving the plate block on the upper surface of a forming plate of a processing box;

s3: and starting a processing box switch to enable the forming plate to make the hardening blocks into granules with the diameter of 20-30 meshes, fully contacting and bonding the hardening blocks with the wall material powder of the protective shell through the spiral fan blades on the bottom surface of the box body, gradually cooling and condensing in the process to finally prepare the required preservative, and collecting and storing the prepared preservative by using a collecting box at the bottom end of the box body.

Preferably, the processing box used in S1-S3 includes a housing and a top cover, the top cover is installed on the top end of the housing, the top cover is provided with a first motor, the bottom end of the first motor is connected with a rotating rod, the bottom end of the rotating rod is provided with a ball screw, and the ball screw is connected with a slip ring; the bottom end of the slip ring is connected with a pressing plate, and the bottom end of the pressing plate is provided with a group of ejector pins which are uniformly distributed; a forming plate is arranged on the side wall of the shell at the bottom end of the pressing plate, a heating net is laid on the forming plate and can heat the upper surface of the forming plate, a group of forming holes which are uniformly distributed are arranged in the forming plate, and the size and the shape of the forming holes are matched with the ejector pins on the pressing plate; a funnel-shaped collecting cavity is arranged on the side wall of the bottom end of the shell, and the bottom end of the collecting cavity is connected with a mixing cavity; the bottom surface of the shell is provided with a second motor, the top end of the second motor is connected with a spiral fan blade through a rotating shaft, the spiral fan blade is made of elastic rubber materials, the spiral fan blade is located inside the mixing cavity, the edge of the spiral fan blade is contacted with the side wall of the mixing cavity, a storage cavity is arranged inside the spiral fan blade, protective shell wall material powder is filled inside the storage cavity, the upper surface of the storage cavity is provided with a group of discharge holes, and the discharge holes can enable the protective shell wall material powder inside the storage cavity to flow out; a discharge port is formed in the shell at the bottom end of the mixing cavity, and a collecting box is connected to the bottom end of the discharge port; the shell is provided with a controller, and the controller controls the automatic operation of the processing box; when the preservative is in work, the common food preservative calcium propionate can sterilize most microorganisms but only does not kill yeasts, so the preservative is widely applied to the bread production industry, but the use of the calcium propionate has two weaknesses: firstly, certain influence is caused on the safety and taste of food when the using amount is large, secondly, because calcium propionate cannot kill saccharomycetes, the baked food finished product is easy to be subjected to secondary pollution of the saccharomycetes, so that the fresh-keeping period of the produced food such as bread is greatly shortened, the preservative produced by the invention consists of preservative particles and a protective shell, and monoglyceride in the protective shell can promote the rapid fermentation of the bread, increase the volume of the bread and improve the texture structure of the dough while being used as a wall material; the preservative is added during flour fermentation and production, so that the protective shell of the preservative plays a role in promoting the fermentation of bread, and the wall material of the protective shell cannot be broken at a low temperature, so that preservative particles in the protective shell do not contact and react with the fermented bread; when the processing box works, the heating net firstly heats the upper surface of the forming plate to enable the forming block to be in a heated state, sucrose added in the forming block is divided into sucrose to enhance the viscosity of the forming block, the adhesion of the surface of the prepared preservative particles to the wall material powder of the protective shell is convenient, meanwhile, the controller controls the first motor to drive the rotating rod at the bottom to rotate, the rotating rod drives the slip ring connected with the ball screw at the bottom to slide downwards when rotating, the sliding slip ring drives the pressing plate at the bottom to move downwards synchronously, the ejector pins at the bottom end of the pressing plate are pressed in the forming holes in the forming plate at the bottom, so that the ejector pins extrude the preservative plate agglomerates between the ejector pins and the forming holes from the forming holes in the process of pressing the forming holes, the forming block is extruded into the required preservative particles and falls into the collecting cavity and the mixing cavity at the bottom, and the controller controls the second motor to drive the spiral fan blades at the top, the spiral fan blade can blow the powder of the protective shell wall material at the bottom of the processing box to the spiral fan blade continuously when rotating, the collecting cavity and the mixing cavity are arranged, the storage cavity gradually throws the powder of the protective shell wall material filled inside out from the discharge hole when the spiral fan blade rotates, the thrown powder of the protective shell wall material is filled inside the spiral fan blade, the stability of the dosage of the powder of the protective shell wall material in the spiral fan blade is enhanced, so that the preservative particles gradually rolling down from the inside of the spiral fan blade are fully contacted and bonded with the powder of the protective shell wall material, meanwhile, in the process of rolling down of the preservative particles, the rotating spiral fan blade can also effectively promote the forming of the outer surface of the preservative particles, the outer surface of the preservative particles is closer to a spherical shape, meanwhile, the air flow blown by the spiral fan blade also cools and cools the preservative particles adhered with the powder of the protective shell wall material on the outer surface, and the preservative particles, thereby make the antiseptic granule that the surface coating has the protective housing to collect and preserve the antiseptic that makes through the collecting box: the beneficial effects of the invention are as follows: the preservative is prepared by the processing box, so that the uniformity and the effectiveness of the prepared preservative are enhanced.

Preferably, the cross-sectional shape of the molding hole is set to be circular, and the radius of the molding hole is kept between 0.6 and 0.8 mm; during operation, the cross sectional shape and the size of shaping hole are limited, so that preservative particles extruded from the shaping hole are closer to a sphere, the size of the preservative particles can be controlled between 20-30 meshes, the contact and bonding effects of the preservative particles and the wall material powder of the protective shell are improved, the preservative particles can roll down from the collecting cavity and the side wall of the spiral fan blade smoothly and easily, and the preservative is effectively promoted to be prepared and the preservative using effect is improved.

Preferably, the included angle between the side wall of the collecting cavity and the horizontal plane is set to be 30-45 degrees, and the upper surface of the side wall of the collecting cavity is provided with a collecting groove; the bottom surface of the collecting groove is set to be a rough surface, and the bottom end of the collecting groove is communicated with the side wall of the mixing cavity; during operation, the collection chamber lateral wall that sets up can effectually make the antiseptic granule that drops at its upper surface smoothly and slowly roll to the hybrid chamber in, the collecting vat can be collected the protective housing wall material powder that spiral fan blade bottom was blown simultaneously for the antiseptic granule that drops inside the collecting vat is fully bonded with the contact of protective housing wall material powder at the in-process that rolls down, thereby has improved the isolated effect of protective housing to inside antiseptic granule, has improved the validity and the stability of antiseptic during operation.

The invention has the following beneficial effects:

1. according to the invention, the preservative is arranged into the granular shape of which the outer surface is wrapped by the protective shell, so that the protective shell of the preservative plays a role in promoting the fermentation of bread, and the wall material of the protective shell cannot be broken at a low temperature, so that the preservative granules in the protective shell do not contact and react with the fermented bread, and after the bread is baked at a high temperature, the wall material of the protective shell is liquefied or vaporized at a high temperature, so that the preservative granules in the protective shell are exposed to the outside, and the preservative effect is played on the baked and molded bread.

2. According to the invention, the preservative is prepared by the arranged processing box, so that the uniformity and effectiveness of the prepared preservative are enhanced, the preparation of the preservative is effectively promoted, and the using effect of the preservative is improved.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a diagram of the steps of the preparation method of the present invention;

FIG. 2 is a schematic perspective view of a processing box of the present invention;

FIG. 3 is a schematic view of the construction of the processing box of the present invention;

FIG. 4 is an enlarged view at A in FIG. 3;

FIG. 5 is an enlarged view at B in FIG. 3;

in the figure: the device comprises a shell 1, a forming plate 11, a forming hole 12, a second motor 13, a discharge hole 14, a top cover 2, a first motor 21, a rotating rod 22, a sliding ring 23, a pressing plate 3, a thimble 31, a collection cavity 4, a collection groove 41, a mixing cavity 5, a spiral fan blade 6, a storage cavity 61, a discharge hole 62 and a collection box 7.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the following embodiments.

As shown in fig. 1-5, the preservative of the present invention comprises preservative particles and a protective shell wrapped on the outer surface of the preservative particles, wherein the preservative particles comprise, by mass, 50-55% of sodium sorbate, 35-45% of potassium sorbate, 4.2-4.5% of sodium dehydroacetate, 0.5-0.8% of sorbic acid, and the balance of water; the diameter of the preservative particles is 20-30 meshes; the wall thickness of the protective shell accounts for 1% -5% of the total; the wall material of the protective shell contains 0.3-5% of monoglyceride, 5-50% of diglyceride, 10-20% of medium-chain triglyceride, 5-10% of lecithin and 0.2% of hydrogenated oil.

As an embodiment of the invention, the preservative granule component further comprises sucrose, and the mass part of the sucrose is 3% -5% of the total mass of other components in the preservative granule; the sucrose can be used as a sweetening agent and a leavening agent to improve the mouthfeel of the baked food; and the sucrose can effectively inhibit the growth of harmful microorganisms and enhance the hardening degree of the preservative granules, so that the preservative granules can be better molded and play a role, and the using effect of the preservative is improved.

A method for preparing the preservative, which is used for preparing the preservative:

s1: mixing 4 parts of monoglyceride, 20 parts of diglyceride, 15 parts of medium-chain triglyceride and 8 parts of lecithin with 0.2 part of hydrogenated oil, uniformly stirring, vaporizing by a high-temperature box to prepare protective shell wall material powder, and spreading the protective shell wall material powder on the bottom surface of a processing box;

s2: mixing 50 parts of sodium sorbate, 40 parts of potassium sorbate, 4 parts of sodium dehydroacetate, 0.6 part of sorbic acid and 3 parts of cane sugar with 100 parts of drinking water, uniformly stirring, drying to prepare a plate block, keeping the thickness of the plate block at 0.6-0.8mm, and then flatly paving the plate block on the upper surface of a forming plate of a processing box;

s3: and starting a processing box switch to enable the forming plate to make the hardening blocks into granules with the diameter of 20-30 meshes, fully contacting and bonding the hardening blocks with the wall material powder of the protective shell through the spiral fan blades on the bottom surface of the box body, gradually cooling and condensing in the process to finally prepare the required preservative, and collecting and storing the prepared preservative by using a collecting box at the bottom end of the box body.

As an embodiment of the present invention, the processing box used in S1-S3 includes a housing 1 and a top cover 2, the top cover 2 is installed on the top end of the housing 1, the top cover 2 is provided with a first motor 21, the bottom end of the first motor 21 is connected with a rotating rod 22, the bottom end of the rotating rod 22 is provided with a ball screw, and the ball screw is connected with a sliding ring 23; the bottom end of the slip ring 23 is connected with a pressing plate 3, and the bottom end of the pressing plate 3 is provided with a group of evenly distributed ejector pins 31; a forming plate 11 is arranged on the side wall of the shell 1 at the bottom end of the pressing plate 3, a heating net is laid on the forming plate 11 and can heat the upper surface of the forming plate 11, a group of forming holes 12 which are uniformly distributed are arranged in the forming plate 11, and the size and shape of the forming holes 12 are matched with the shape of the ejector pins 31 on the pressing plate 3; a funnel-shaped collecting cavity 4 is arranged on the side wall of the bottom end of the shell 1, and the bottom end of the collecting cavity 4 is connected with a mixing cavity 5; the bottom surface of the shell 1 is provided with a second motor 13, the top end of the second motor 13 is connected with a spiral fan blade 6 through a rotating shaft, the spiral fan blade 6 is made of elastic rubber materials, the spiral fan blade 6 is located inside the mixing cavity 5, the edge of the spiral fan blade 6 is in contact with the side wall of the mixing cavity, a storage cavity 61 is arranged inside the spiral fan blade 6, protective shell wall material powder is filled inside the storage cavity 61, the upper surface of the storage cavity 61 is provided with a group of discharge holes 62, and the discharge holes 62 can enable the protective shell wall material powder inside the storage cavity 61 to flow out; a discharge port 14 is arranged on the shell 1 at the bottom end of the mixing cavity 5, and the bottom end of the discharge port 14 is connected with a collection box 7; the shell 1 is provided with a controller, and the controller controls the automatic operation of the processing box; when the preservative is in work, the common food preservative calcium propionate can sterilize most microorganisms but only does not kill yeasts, so the preservative is widely applied to the bread production industry, but the use of the calcium propionate has two weaknesses: firstly, certain influence is caused on the safety and taste of food when the using amount is large, secondly, because calcium propionate cannot kill saccharomycetes, the baked food finished product is easy to be subjected to secondary pollution of the saccharomycetes, so that the fresh-keeping period of the produced food such as bread is greatly shortened, the preservative produced by the invention consists of preservative particles and a protective shell, and monoglyceride in the protective shell can promote the rapid fermentation of the bread, increase the volume of the bread and improve the texture structure of the dough while being used as a wall material; the preservative is added during flour fermentation and production, so that the protective shell of the preservative plays a role in promoting the fermentation of bread, and the wall material of the protective shell cannot be broken at a low temperature, so that preservative particles in the protective shell do not contact and react with the fermented bread; when the processing box works, the heating net firstly heats the upper surface of the forming plate 11 to enable the hardening block to be in a heated state, sucrose added in the hardening block is divided into sucrose to enhance the viscosity of the hardening block, the adhesion of the surface of the prepared preservative particles to the powder of the wall material of the protective shell is convenient, meanwhile, the controller controls the first motor 21 to drive the rotating rod 22 at the bottom to rotate, the rotating rod 22 drives the slip ring 23 connected with the ball screw at the bottom to slide downwards when rotating, the sliding slip ring 23 drives the pressing plate 3 at the bottom to synchronously move downwards, the ejector pin 31 at the bottom end of the pressing plate 3 is pressed in the forming hole 12 in the forming plate 11 at the bottom, the preservative plate caking blocks between the ejector pin 31 and the forming hole 12 are extruded from the forming hole 12 in the pressing process, and the hardening block is extruded into the required preservative particles and falls into the collecting cavity 4 and the mixing cavity 5 at the bottom, at this time, the controller controls the second motor 13 to drive the spiral fan blade 6 at the top to rotate, so that the spiral fan blade 6 can continuously blow the powder of the protective shell wall material at the bottom of the processing box to the spiral fan blade 6, the collecting cavity 4 and the mixing cavity 5 when rotating, the storage cavity 61 gradually throws out the powder of the protective shell wall material filled inside from the discharge hole 62 when the spiral fan blade 6 rotates, so that the thrown-out powder of the protective shell wall material is filled inside the spiral fan blade 6, the stability of the dosage of the powder of the protective shell wall material in the spiral fan blade 6 is enhanced, so that the preservative particles gradually rolling down from the inside of the spiral fan blade 6 are fully contacted and bonded with the powder of the protective shell wall material, and meanwhile, in the process that the preservative particles roll down, the rotating spiral fan blade 6 can also effectively promote the forming of the outer surface of the preservative particles, so that the outer surface of the preservative particles is closer, simultaneously the air current that spiral fan blade 6 blown also cools off and cool down it for the surface is stained with the antiseptic granule rapid solidification of protective housing wall material powder, thereby makes the antiseptic granule that the surface parcel has the protective housing, and collects and preserve the antiseptic that makes through collecting box 7: the beneficial effects of the invention are as follows: the preservative is prepared by the processing box, so that the uniformity and the effectiveness of the prepared preservative are enhanced.

As an embodiment of the invention, the cross-sectional shape of the forming hole 12 is set to be circular, and the radius of the forming hole 12 is kept between 0.6 mm and 0.8 mm; during operation, the cross sectional shape and the size of the forming hole 12 are limited, so that preservative particles extruded from the forming hole 12 are closer to a sphere, the size of the preservative particles can be controlled between 20-30 meshes, the contact and bonding effects of the preservative particles and the wall material powder of the protective shell are improved, the preservative particles can roll off from the side walls of the collecting cavity 4 and the spiral fan blades 6 more conveniently and smoothly, and the preservative is effectively promoted to be prepared and the preservative using effect is improved.

As an embodiment of the invention, the included angle between the side wall of the collecting cavity 4 and the horizontal plane is set to be 30-45 degrees, and the upper surface of the side wall of the collecting cavity 4 is provided with a collecting groove 41; the bottom surface of the collecting tank 41 is set to be a rough surface, and the bottom end of the collecting tank 41 is communicated with the side wall of the mixing cavity 5; during operation, the collection chamber 4 lateral walls that set up can effectually make the antiseptic granule that drops on its upper surface smoothly and slowly roll to the hybrid chamber 5 in, collecting vat 41 can be collected the protective housing wall material powder that 6 bottoms of spiral fan blade blow simultaneously, make the antiseptic granule that drops in collecting vat 41 inside roll the in-process that falls downwards abundant and protective housing wall material powder contact bonding, thereby the isolated effect of protective housing to inside antiseptic granule has been improved, the validity and the stability of antiseptic during operation have been improved.

To verify the effectiveness of the preservative used in the present invention, the person skilled in the art of the present application has conducted tests of examples 1 to 3.