CN107646534B - Raw material mixing device for pleurotus eryngii culture medium - Google Patents
Raw material mixing device for pleurotus eryngii culture medium Download PDFInfo
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- CN107646534B CN107646534B CN201710923197.XA CN201710923197A CN107646534B CN 107646534 B CN107646534 B CN 107646534B CN 201710923197 A CN201710923197 A CN 201710923197A CN 107646534 B CN107646534 B CN 107646534B
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Abstract
The patent discloses a raw material mixing device for a pleurotus eryngii culture medium, and relates to the field of plant cultivation; the device mainly comprises a mixing barrel, a feeding unit and a cyclone separator, wherein the feeding unit comprises an alfalfa feeding part and a kernel feeding part; the two feeding parts respectively comprise an air inlet pipe, a fan and a material crusher arranged in the air inlet pipe, the air inlet pipe is a Venturi tube, two ends of the air inlet pipe are respectively provided with an inlet section and a diffusion section, the middle part of the air inlet pipe is provided with a throat, the inlet section is connected with the fan, and the diffusion section is connected with the mixing barrel; the material crusher is arranged in the diffusion section and comprises a rotating shaft, a turbine and a screen, wherein the turbine and the screen are fixed with the rotating shaft; the inlet section is provided with a feed inlet, the diffusion section is provided with a material returning port positioned between the turbine and the screen, and the material returning port is connected with the throat through a circulating pipe; the mixing barrel is connected with the inlet of the cyclone separator. The equipment can mix the materials while crushing the materials.
Description
Technical Field
The invention relates to plant cultivation, in particular to a raw material mixing device for a pleurotus eryngii culture medium.
Background
The organic food is prepared by using no chemically synthesized pesticide, fertilizer, production regulator, feed additive and other substances in the production process of animals and plants; at present, organic food and green food become an indispensable part in the current life, the green food in the current market often cannot meet the national green food standard, and certain medicine residues exist. The pleurotus eryngii has high nutritive value and is economical and cheap, so that the pleurotus eryngii becomes one of essential dishes for daily life of people, the pleurotus eryngii in the current market is various in variety and new varieties continuously appear, along with the increasing improvement of the living standard of people, the food safety requirements of people on the pleurotus eryngii are more and more strict, no pollution is caused to green and inorganic foods, and most of the foods at present have the problems of chemical drug residues and the like.
In order to meet the requirement of no pollution, the current pleurotus eryngii is usually cultured on a culture medium, the raw material of the culture medium is usually particles obtained by crushing plant roots, stems and branches, and the culture medium is usually formed by mixing a plurality of plant particles in order to ensure that the culture medium has a plurality of nutrient components. During manufacturing, various plant roots and stems are usually respectively crushed into particles and then mixed, and the particles cannot be mixed while being crushed, so that large batches of particles are often mixed simultaneously, and a long stirring time is needed to ensure the uniform mixing degree so as to achieve the purpose of uniform mixing.
Disclosure of Invention
The invention aims to provide a raw material mixing device for a pleurotus eryngii culture medium, which can grind and mix materials at the same time.
In order to achieve the above purpose, the basic scheme of the invention is as follows:
the raw material mixing device for the pleurotus eryngii culture medium comprises a mixing barrel, a feeding unit and a cyclone separator; the feeding unit comprises an air inlet pipe, a fan and a material crusher arranged in the air inlet pipe, the air inlet pipe is a Venturi tube, two ends of the air inlet pipe are respectively provided with an inlet section and a diffusion section, the middle part of the air inlet pipe is provided with a throat, the inlet section is connected with the fan, and the diffusion section is connected with the mixing barrel; the material crusher is arranged in the diffusion section and comprises a rotating shaft, a turbine and a screen, wherein the turbine and the screen are fixed with the rotating shaft; the inlet section is provided with a feed inlet, the diffusion section is provided with a material returning port positioned between the turbine and the screen, and the material returning port is connected with the throat through a circulating pipe; the feed unit is equipped with two altogether, and two feed units are alfalfa feed portion and kernel feed portion respectively, mixing cylinder and cyclone's entry linkage.
The principle of the pleurotus eryngii culture medium raw material mixing device in the scheme is as follows:
starting fans of the alfalfa feeding part and the kernel feeding part, continuously feeding alfalfa to a feeding hole of the alfalfa feeding part, and simultaneously continuously feeding wild kernels to the kernel feeding part; the air flow flowing at high speed can push the alfalfa and the wild fruit stones to be transported forwards in the air inlet pipe. At the same time, the turbine is rotated by the airflow flowing at high speed, and because blades are arranged on the blades of the turbine, when the alfalfa or wild fruit stones pass through the turbine, the blades have a cutting effect on the alfalfa or fruit stones, so that the alfalfa or fruit stones are cut into particles. The granular alfalfa or fruit stones are continuously conveyed forwards under the action of the air flow, and when the granules are smaller than the meshes of the screen, the granules pass through the screen; when the particles are larger than the meshes of the screen, the particles are attached to the screen under the action of the air flow. However, as the screen and the turbine rotate together, the particles attached to the screen rotate together with the screen, and the particles are under the action of centrifugal force; under the action of centrifugal force, the particles attached to the screen are dispersed toward the periphery, thereby preventing the particles from blocking the screen. When the airflow flows in the air inlet pipe, because the sectional area of the throat is small, the airflow velocity at the throat is larger than the airflow velocity in the inlet section and the diffusion section, the pressure at the throat is smaller than the pressure in the inlet section and the diffusion section, and the airflow flowing from the material return opening to the throat is formed in the circulating pipe; thus when larger particles collect on the side wall of the diffuser section, the larger particles will return through the recirculation duct to the throat and pass again through the turbine for further comminution until they can pass through the screen.
After passing through the screen, the particles enter a mixing barrel; in the mixing barrel, two air flows from the alfalfa feeding part and the kernel feeding part mutually collide, so that turbulent flow is formed in the mixing barrel, alfalfa particles and wild kernel particles randomly move in the mixing barrel, and the aim of mutually mixing the alfalfa particles and the wild kernel particles is fulfilled. Along with the continuous accumulation of the airflow of the mixing barrel, the airflow carries the mixed particles to enter the cyclone separator, and after passing through the cyclone separator, the mixed particles are separated from the airflow and are respectively discharged, so that the mixed particles of the alfalfa and the wild fruit stones can be obtained.
The beneficial effect that this scheme produced is:
firstly, the high-speed airflow passes through the air inlet pipe and drives the turbine to rotate, and the turbine can crush the alfalfa or the wild fruit stones; in addition, the particles which do not pass through the screen can return to the throat again and pass through the turbine again for crushing, so that the finally obtained particles are smaller than the mesh size of the screen.
And (II) after the alfalfa and the wild kernel particles enter the mixing barrel, the alfalfa and the wild kernel particles can be mixed under the impact of air flow, so that the cyclone separator can directly discharge the mixed materials.
The first preferred scheme is as follows: as a further optimization of the basic scheme, the mesh diameter of the screen of the alfalfa feeding part is 5-10mm, and the mesh diameter of the screen of the kernel feeding part is 3-5 mm; a material discharging pipe is arranged in the mixing cylinder, one end of the material discharging pipe is a feeding end, the other end of the material discharging pipe is a material discharging end, the feeding end is positioned in the center of the mixing cylinder, and the material discharging end extends out of the mixing cylinder; the stirrer is installed between the feeding unit and the discharging pipe and comprises a driving motor and a stirring blade, and the rotating center of the stirring blade coincides with the central line of the mixing barrel.
When the pleurotus eryngii culture medium is prepared, the diameter of the alfalfa particles is controlled to be 5-10mm, and the diameter of the wild kernel particles is controlled to be 3-5mm, so that a high-quality culture medium can be prepared; thus, by controlling the diameter of the mesh of the screen, only particles smaller than the diameter of the mesh can enter the mixing drum. The alfalfa particles with the diameter less than 5mm and the wild kernel particles with the diameter less than 3mm can both pass through the screen, so that the preparation of a high-quality culture medium is not facilitated. In the mixing cylinder, the stirrer rotates, the stirring blades drive airflow in the mixing cylinder to rotate, and the particles gradually move outwards under the action of centrifugal force; the larger the particles are, the larger the centrifugal force to which the particles are subjected, the larger the particles are mainly concentrated close to the side wall of the mixing drum, while the smaller the particles are further away from the side wall of the mixing drum; therefore, as the particles move forwards in the mixing cylinder, larger particles enter the cyclone separator, and smaller particles are discharged through the discharge pipe, so that a high-quality culture medium is prepared. In addition, the mixer can also accelerate the mixing of the two particles.
The preferred scheme II is as follows: as a further optimization of the basic scheme, the feeding opening is connected with a feeding hopper, so that feeding is facilitated.
The preferable scheme is three: as a further optimization of the basic scheme, the air outlet of the fan is connected with a nozzle; through setting up the nozzle, then can accelerate the air velocity in air-supply line inlet section middle part, and the air velocity that is close to inlet section lateral wall department is slower to it will form the negative pressure to be close to inlet section lateral wall department, is more favorable to the feeding.
The preferable scheme is four: as a further optimization of the basic scheme, a material collecting groove is arranged below the cyclone separator; the mixture of the alfalfa particles and the wild kernel particles can be collected more conveniently by arranging the collecting trough.
The preferable scheme is five: as a further optimization of the basic scheme, an annular guide chute positioned between the turbine and the screen is arranged on the side wall of the diffusion section, and the side wall of the guide chute is an inclined surface inclined towards the material return opening. The particles which fail to pass through the screen mesh enter the guide chute under the action of centrifugal force, and the side wall of the guide chute has a guiding effect on the particles for the inclined surface, so that the particles can enter the material returning port conveniently.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of a raw material mixing device for a Pleurotus eryngii culture medium according to the present invention;
FIG. 2 is a connection structure diagram of a mixing barrel and a feeding unit in an embodiment of the raw material mixing device for pleurotus eryngii culture medium according to the present invention.
Detailed Description
The present invention will be described in further detail below by way of specific embodiments:
reference numerals in the drawings of the specification include: the device comprises an alfalfa feeding part 10a, a kernel feeding part 10b, an inlet section 11, a throat 12, a diffusion section 13, a circulating pipe 14, a hopper 15, a material guide groove 16, a nozzle 17, a turbine 18, a screen 19, a mixing barrel 20, a stirrer 21, a discharging pipe 22, a cyclone separator 30, a material collecting groove 40 and a fan 50.
The embodiment is basically as shown in figures 1 and 2:
the raw material mixing device for the pleurotus eryngii culture medium comprises a mixing barrel 20, a feeding unit, a cyclone separator and a material collecting groove 40 arranged below the cyclone separator. The feeding unit comprises an air inlet pipe, a fan 50 and a material crusher arranged in the air inlet pipe, the air inlet pipe is a Venturi tube, the two ends of the air inlet pipe are respectively provided with an inlet section 11 and a diffusion section 13, and the middle part of the air inlet pipe is provided with a throat 12. The inlet section 11 is connected with a fan 50, and an air outlet of the fan 50 is connected with a nozzle 17 to accelerate the flow rate of the air flow and centralize the air flow. The diffusion section 13 is connected with a mixing barrel 20, alfalfa or wild fruit stones enter the mixing barrel 20 after passing through an air inlet pipe, and meanwhile, the mixing barrel 20 is also connected with an inlet of a cyclone separator. The material crusher is arranged in the diffusion section 13 and comprises a rotating shaft, a turbine 18 and a screen 19, wherein the turbine 18 and the screen are fixed to the rotating shaft, blades of the turbine 18 are provided with cutting edges, the rotating shaft is rotatably connected with the air inlet pipe, the turbine 18 is located on one side close to the throat 12, and the screen 19 is located on one side close to the mixing barrel 20. The feeding units are provided with two feeding units, namely an alfalfa feeding part 10a and a kernel feeding part 10 b. When alfalfa or wild fruit stones flow with the air flow in the air inlet pipe, the alfalfa or wild fruit stones will pass through the turbine 18 first, then the blades arranged on the turbine 18 can break the alfalfa or wild fruit stones into smaller particles, and then the particles pass through the screen 19, and when the particles pass through the screen 19, the screen 19 will screen the particles according to the size of the particles. In this embodiment, the mesh diameter of the screen 19 in the alfalfa feeding portion 10a is set to 6mm, and the mesh diameter of the screen 19 in the kernel feeding portion 10b is set to 4 mm.
Be equipped with in the compounding section of thick bamboo 20 and arrange material pipe 22, arrange that material pipe 22 one end is the feed end, arrange the material pipe 22 other end and be the discharge end, the feed end is located the center of compounding section of thick bamboo 20, and the discharge end stretches out outside the compounding section of thick bamboo 20. A stirrer 21 is arranged between the feeding unit and the discharging pipe 22, the stirrer 21 comprises a driving motor and a stirring blade, and the rotation center of the stirring blade is coincided with the central line of the mixing cylinder 20. In the mixing cylinder 20, when the stirrer 21 works, the stirring blades drive the airflow in the mixing cylinder 20 to rotate, and the particles gradually move outwards under the action of centrifugal force; larger particles are mainly concentrated close to the side wall of the mixing bowl 20, whereas smaller particles are more distant from the side wall of the mixing bowl 20, since larger particles are subjected to larger centrifugal forces; thus, as the particles continue to move forward in the mixing bowl 20, larger particles will enter the cyclone while smaller particles are discharged through the discharge tube 22.
The inlet section 11 is provided with a feeding hole, and the feeding hole is connected with a hopper 15 for feeding. The diffuser section 13 is provided with a return port between the turbine 18 and the screen 19, which is connected to the throat 12 via a recirculation pipe 14. For particles that cannot pass through the screen 19, they will adhere to the screen 19 by the wind pressure, and will be dispersed toward the side wall of the diffuser section 13 by the centrifugal force. The side wall of the diffuser section 13 is provided with a guide chute 16 in an annular shape between the turbine 18 and the screen 19, and the side wall of the guide chute 16 is provided with an inclined surface inclined toward the material returning opening. The particles which fail to pass through the screen 19 enter the material guide chute 16 under the action of centrifugal force, and the side wall of the material guide chute 16 is an inclined surface and has a guiding effect on the particles, so that the particles are gradually gathered towards the material return opening. When the airflow flows in the air inlet pipe, because the sectional area of the throat 12 is small, the airflow velocity at the throat 12 is larger than the airflow velocity in the inlet section 11 and the diffusion section 13, the pressure at the throat 12 is smaller than the pressure in the inlet section 11 and the diffusion section 13, and the airflow flowing from the material returning port to the throat 12 is formed in the circulating pipe 14; thus, when larger particles collect at the return port, they will return to the throat 12 through the recirculation tube 14 and pass through the turbine 18 again.
The concrete working process of this embodiment apricot bao mushroom culture medium raw materials mixing arrangement does:
starting the fans 50 of the alfalfa feeding part 10a and the kernel feeding part 10b, continuously feeding alfalfa into the feeding hole of the alfalfa feeding part 10a, and simultaneously continuously feeding wild kernels into the kernel feeding part 10 b; the high-speed airflow pushes the alfalfa and the wild fruit stones to be conveyed forwards in the air inlet pipe. At the same time, the turbine 18 is rotated by the air flow, and because of the blades of the turbine 18, the blades have a cutting effect on the alfalfa or wild kernels as they pass through the turbine 18, thereby chopping them into particles. The granular alfalfa or fruit stones are continuously conveyed forwards under the action of the air flow, and when the granules are smaller than the meshes of the screen 19, the granules pass through the screen 19; when the pellet is larger than the mesh of the screen 19, the pellet will stick to the screen 19. Since the screen 19 rotates together with the turbine 18, the particles attached to the screen 19 will rotate together with the screen 19; the particles adhering to the screen 19 are dispersed towards the periphery by the centrifugal force, while the larger particles will return to the throat 12 through the recirculation duct 14 and pass again through the turbine 18 for further comminution until they can pass through the screen 19.
After passing through the screen 19, the particles enter the mixing barrel 20; in the mixing cylinder 20, the two air flows from the alfalfa feeding portion 10a and the kernel feeding portion 10b collide with each other, so that a turbulent flow is formed in the mixing cylinder 20, and the alfalfa particles and the wild kernel particles move randomly in the mixing cylinder 20, so that the aim of mixing the alfalfa particles and the wild kernel particles with each other is fulfilled. Meanwhile, the mixed particles carried by the airflow enter a cyclone separator together, and after passing through the cyclone separator, the mixed particles are separated from the airflow and are discharged respectively, so that the mixed particles of the alfalfa and the wild fruit stones can be obtained.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (6)
1. A raw material mixing device for a pleurotus eryngii culture medium is characterized by comprising a mixing cylinder, a feeding unit and a cyclone separator; the feeding unit comprises an air inlet pipe, a fan and a material crusher arranged in the air inlet pipe, the air inlet pipe is a Venturi tube, two ends of the air inlet pipe are respectively provided with an inlet section and a diffusion section, the middle part of the air inlet pipe is provided with a throat, the inlet section is connected with the fan, and the diffusion section is connected with the mixing barrel; the material crusher is arranged in the diffusion section and comprises a rotating shaft, a turbine and a screen, wherein the turbine and the screen are fixed with the rotating shaft; the inlet section is provided with a feed inlet, the diffusion section is provided with a material returning port positioned between the turbine and the screen, and the material returning port is connected with the throat through a circulating pipe; the feed unit is equipped with two altogether, and two feed units are alfalfa feed portion and kernel feed portion respectively, mixing cylinder and cyclone's entry linkage.
2. The pleurotus eryngii culture medium raw material mixing device according to claim 1, wherein the mesh diameter of the screen of the alfalfa feeding portion is 5-10mm, and the mesh diameter of the screen of the kernel feeding portion is 3-5 mm; a material discharging pipe is arranged in the mixing cylinder, one end of the material discharging pipe is a feeding end, the other end of the material discharging pipe is a material discharging end, the feeding end is positioned in the center of the mixing cylinder, and the material discharging end extends out of the mixing cylinder; the stirrer is installed between the feeding unit and the discharging pipe and comprises a driving motor and a stirring blade, and the rotating center of the stirring blade coincides with the central line of the mixing barrel.
3. The raw material mixing device for the pleurotus eryngii culture medium according to claim 1, wherein a feed hopper is connected to the feed inlet.
4. The raw material mixing device for the pleurotus eryngii culture medium according to claim 1, wherein a nozzle is connected to an air outlet of the blower.
5. The raw material mixing device for the pleurotus eryngii culture medium according to claim 1, wherein a material collecting groove is formed below the cyclone separator.
6. The raw material mixing device for the pleurotus eryngii culture medium according to claim 1, wherein a guide chute in a ring shape is provided on a side wall of the diffuser section between the turbine and the screen, and the side wall of the guide chute is an inclined surface inclined toward the feed returning port.
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| CN201710923197.XA CN107646534B (en) | 2017-09-30 | 2017-09-30 | Raw material mixing device for pleurotus eryngii culture medium |
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| CN201710923197.XA CN107646534B (en) | 2017-09-30 | 2017-09-30 | Raw material mixing device for pleurotus eryngii culture medium |
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| CN107646534B true CN107646534B (en) | 2020-05-12 |
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| CN108760409B (en) * | 2018-03-27 | 2020-09-01 | 重庆山楂树科技有限公司 | Gas sampling device |
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| CN104718978A (en) * | 2013-12-22 | 2015-06-24 | 天津市天佑裕丰农业科技有限公司 | Mixing machine of culture medium for edible fungi |
| CN104255289A (en) * | 2014-08-25 | 2015-01-07 | 金陵科技学院 | Turning technology and turning device for mixing and stirring composts |
| CN106613306A (en) * | 2015-11-03 | 2017-05-10 | 重庆鸿谦农业开发有限责任公司 | Edible-mushroom-medium mixing device |
| CN206283906U (en) * | 2016-11-19 | 2017-06-30 | 内黄县日星食用菌自动化设备厂 | Two-shipper stirs production line |
| CN107185635B (en) * | 2017-05-04 | 2019-05-14 | 湖南农业大学 | A kind of dedicated crushing softening plant of the device of one-pass molding bacterium base |
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Effective date of registration: 20201118 Address after: 244000 national agricultural science and Technology Park of Tongling City, Anhui Province Patentee after: ANHUI TONGXIANZI EDIBLE FUNGUS TECHNOLOGY Co.,Ltd. Address before: Changshou District of Chongqing city in 401231 wind dam Industrial Glenn town concentrated area Patentee before: CHONGQING WEIDEXIAN AGRICULTURAL DEVELOPMENT Co.,Ltd. |
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