CN115104684A

CN115104684A - Semi-submerged type puffed feed for mixed culture fish, and preparation method and device thereof

Info

Publication number: CN115104684A
Application number: CN202210759823.7A
Authority: CN
Inventors: 肖志猛; 万冰
Original assignee: Hubei Your Technology Feed Co ltd
Current assignee: Hubei Your Technology Feed Co ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2022-09-27

Abstract

The invention discloses a semi-submerged type expanded feed for polyculture fish, a preparation method and a device, wherein the semi-submerged type expanded feed comprises the following raw materials in percentage by mass: the feed comprises 3% of fish meal, 35.05% of soybean meal, 26% of rapeseed meal, 20% of green cake, 8% of cassava starch, 3% of soybean oil, 1% of lard, 2.5% of monocalcium phosphate, 0.3% of salt, 1% of special puffing premix for grass carp, 0.1% of choline and 0.05% of antioxidant, and relates to the technical field of breeding. According to the semi-submerged type puffed feed for the polyculture fish, the starch content is strictly and accurately controlled to be 8% (+ -0.5), production process parameters are fixed, the volume weight of a finished product is controlled to be 550 (+ -20), 20-40% of the finished product feed is guaranteed to be submerged and 60-80% of the finished product feed is floated, semi-submerged type feeding of the feed is achieved, feeding of the carassius auratus gibelio in a water layer is met, and the defect of feeding of the carassius auratus gibelio in a polyculture pond is overcome.

Description

Semi-submerged type puffed feed for mixed culture of fish, and preparation method and device thereof

Technical Field

The invention relates to the technical field of cultivation, in particular to a semi-submerged type expanded feed for polyculture fish, a preparation method and a device.

Background

The mixed culture mode of taking grass carp as a main part and matching carassius auratus gibelio is the main culture mode in China, and the expanded compound feed is greatly applied to the culture of the mixed culture fishpond because of the high growth speed and the low feed ratio. However, the specifications of carassius auratus gibelio using the expanded compound feed in the mixed culture pond are generally smaller, and are usually smaller than the mouth of a common sinking granular material by more than 3, and the reason for this is that the expanded feed completely floats on the water surface, so that the food robbing performance of the grass carp is too strong, and the carassius auratus gibelio can hardly eat the food.

The semi-submerged type puffed feed for the mixed culture of the crucian carps, the preparation method and the device are specially provided, the volume weight of a finished product is controlled by strictly and accurately controlling the starch content and fixing production process parameters, and the finished product feed is guaranteed to sink and float upwards according to a certain proportion, so that the feeding of the carassius carps for allogynogenesis in a water layer is met, and the feeding defect of the carassius carps for allogynogenesis in a mixed culture pond is overcome.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a semi-submerged type puffed feed for polyculture fish, a preparation method and a device, and solves the problem that the conventional puffed feed completely floats on the water surface, so that the crucian carp can not be eaten by others in a polyculture mode of mainly matching grass carp with the crucian carp.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: a semi-submerged type puffed feed for mixed culture of fish comprises the following raw materials in percentage by mass: 3% of fish meal, 35.05% of soybean meal, 26% of rapeseed meal, 20% of green cake, 8% of cassava starch, 3% of soybean oil, 1% of lard, 2.5% of monocalcium phosphate, 0.3% of salt, 1% of special puffing premix for grass carp, 0.1% of choline and 0.05% of antioxidant.

By adopting the technical scheme, the precise control of the starch content is realized, the unit weight of the finished product is controlled, and the finished product feed is ensured to sink and float upwards according to a certain proportion, so that the feeding of the carassius auratus gibelio in the water layer is met, and the defect of feeding of the carassius auratus gibelio in the polyculture pond is overcome.

The invention is further configured to: the soybean meal is 43% protein soybean meal.

The invention also discloses a preparation method of the semi-submerged type expanded feed for the polyculture fish, which comprises the following steps:

step one, premixing small materials: according to the mass percentage: 0.3% of salt, 1% of special puffed premix for grass carps, 0.1% of choline and 0.05% of antioxidant, wherein the salt, the special puffed premix for grass carps, the choline and the antioxidant are accurately weighed and then placed in a small charging barrel, a motor is started, the motor drives a rotating shaft to rotate to drive a bearing plate to rotate, the bearing plate drives the small charging barrel to rotate, and in the rotating process of the small charging barrel, a small toothed ring is meshed with an outer toothed ring, so that the small charging barrel rotates, additives are fully mixed, and small mixed materials are obtained;

step two, batching: according to the mass percentage: 3% of fish meal, 35.05% of bean pulp, 26% of rapeseed meal, 20% of green cake, 8% of cassava starch, 1% of lard oil and 2.5% of monocalcium phosphate, wherein the fish meal, the bean pulp, the rapeseed meal, the green cake, the cassava starch, the lard oil and the monocalcium phosphate are precisely weighed and then sent into a crusher to be crushed, so as to obtain a preliminarily crushed ingredient;

step three, primary mixing: placing the primarily crushed ingredients in a temporary storage cylinder, drawing out a limit baffle, enabling the primarily crushed ingredients to flow into a mixing box through a diversion pipe, opening a first electromagnetic valve on a small material cylinder, enabling the mixed small materials to fall into the mixing box, driving a rotating shaft to rotate while a motor rotates, mixing the primarily crushed ingredients and the mixed small materials for the first time, opening a second electromagnetic valve after mixing is completed, and conveying the primarily mixed materials into a receiving basin to obtain a primary mixed material;

step four, crushing and mixing: conveying the primary mixture prepared in the third step to an ultrafine pulverizer for ultrafine grinding to obtain a final ground material, conveying the final ground material to another temporary storage cylinder, flowing into a mixing box through a guide pipe, driving a rotating shaft by a motor to enable a stirring frame to perform secondary mixing on the material, opening a second electromagnetic valve after the mixing is finished, and conveying the mixed material to a receiving basin to obtain a secondary mixture;

step five, puffing: adding the secondary mixture prepared in the fourth step into a bulking machine, and bulking the secondary mixture by steam under the conditions that the water content of the secondary mixture is 24% and the modulation temperature is 110-130 ℃;

step six, drying: after the bulking processing in the fifth step is completed, drying the bulked mixture at 85-100 ℃;

seventhly, cooling and screening impurities: cooling the materials dried in the sixth step to natural temperature in a cooler, and then screening out impurities and unqualified finished products to obtain semi-finished feed products;

step eight, oil injection screening: adding the green soybean oil into an oil injection system according to the mass percent of 3% of the green soybean oil to perform external oil injection on the semi-finished feed product, and then screening out impurities and unqualified finished feed products again to obtain a finished feed product;

step nine, weighing and packaging: weighing, bagging and packaging the finished feed product prepared in the step eight as required to obtain a packaged finished product, and putting the packaged finished product into a warehouse for normal-temperature storage.

By adopting the technical scheme, the volume weight of the finished product is controlled to be 550 (+ -20) by strictly and accurately controlling the starch content to be 8% (+ -0.5) and fixing production process parameters, so that 20-40% of the finished feed sinks and 60-80% of the finished feed floats, and semi-submerged feeding of the feed is realized, so that feeding of the carassius auratus gibelio in a water layer is met, and the feeding defect of the carassius auratus gibelio in a polyculture pond is overcome.

The invention is further configured to: and the final crushed material in the fourth step is obtained by screening through a 80-mesh screen.

The invention also discloses a device for manufacturing the semi-submersible type puffed feed for the polyculture fish, which comprises a mixing box and a motor, wherein the motor is fixedly arranged in the middle of the top of the inner cavity of the mixing box, the bottom end of an output shaft of the motor penetrates through the mixing box and is fixedly connected with the top end of a rotating shaft through a coupler, the bottom end of the rotating shaft is rotatably connected with the bottom of the inner cavity of the mixing box through a bearing, a bearing plate is sleeved and fixedly arranged on the periphery of the rotating shaft, the top of the bearing plate is uniformly and rotatably connected with at least four small material cylinders at intervals through hollow I-shaped blocks, a filling port matched with the small material cylinders is formed in the top of the mixing box, small toothed rings are sleeved and fixedly arranged on the periphery of the small material cylinders, and outer toothed rings matched with the small toothed rings are fixedly arranged on the inner wall of the mixing box.

Through adopting above-mentioned technical scheme, when utilizing the motor to drive axis of rotation pivoted for the loading board rotates, sets up down in the cooperation of little ring gear and outer ring gear, makes the loading board drive little feed cylinder and carries out the pivoted while, and the rotation takes place for little feed cylinder, thereby mixes the effective mixture of little material in the realization little feed cylinder.

The invention is further configured to: the bottom of the small charging barrel is communicated with a first discharging pipe, the bottom end of the first discharging pipe penetrates through the hollow I-shaped block and extends to the position below the hollow I-shaped block, and a first electromagnetic valve is arranged on the surface of the first discharging pipe.

Through adopting above-mentioned technical scheme, utilize the setting of hollow I type piece, for the stable rotation of little feed cylinder installs the condition of facilitating on the loading board to for arranging of first discharge tube provides installation space, it is more convenient to use.

The invention is further configured to: the surface of axis of rotation and the below cover that is located the loading board are established and fixed mounting has the stirring frame, annular stirred tank has been seted up to the bottom of mixing box inner chamber, the bottom fixed mounting of stirring frame has the scraper blade with annular stirred tank inner chamber bottom looks adaptation, the left and right sides of mixing box inner chamber bottom all communicates has the second of arranging with annular stirred tank intercommunication expects the pipe, and the second is arranged the surface of expecting the pipe and is provided with second electromagnetic valve, the bottom fixed mounting of mixing box has the support frame, the basin is accepted to the surface of placing of support frame.

Through adopting above-mentioned technical scheme, under the setting of stirring frame, the axis of rotation drives the stirring frame and carries out synchronous rotation, for once mix with the secondary step provides the mixing space to under the cooperation of annular stirred tank and scraper blade sets up, when guaranteeing the fodder misce bene, guarantee that the annular stirred tank in the fodder is effectual to be arranged to accept the basin through the second discharge pipe.

The invention is further configured to: the left and right sides of mixing box is all through a connecting block fixed mounting at the section of thick bamboo of keeping in, the one side that a section of thick bamboo kept away from the mixing box of keeping in runs through and slidable mounting has limit baffle, through the honeycomb duct intercommunication between the bottom of a section of thick bamboo of keeping in and the mixing box surface, limit baffle's top fixed mounting has magnetic force piece, and the surface of a section of thick bamboo of just keeping in inlays the adsorption piece that is provided with magnetic force piece looks adaptation.

Through adopting above-mentioned technical scheme, under the setting of two a section of thick bamboo of keeping in, effectively guaranteed the convenient use of device in the feed processing process, utilize the cooperation setting of magnetic force piece and adsorption plate, carry on spacingly to limit baffle's position, and then guarantee limit baffle to the effective shutoff of honeycomb duct.

(III) advantageous effects

The invention provides a semi-submerged type expanded feed for polyculture fish, a preparation method and a device. The method has the following beneficial effects:

(1) according to the semi-submerged type puffed feed for the polyculture fish, the starch content is strictly and accurately controlled to be 8% (+ -0.5), production process parameters are fixed, the volume weight of a finished product is controlled to be 550 (+ -20), 20-40% of the finished product feed is guaranteed to be submerged and 60-80% of the finished product feed is floated, semi-submerged type feeding of the feed is achieved, feeding of the carassius auratus gibelio in a water layer is met, and the defect of feeding of the carassius auratus gibelio in a polyculture pond is overcome.

(2) According to the semi-submersible type puffed feed for polyculture fish, the bearing plate is rotated when the motor is utilized to drive the rotating shaft to rotate, the bearing plate drives the small feed cylinder to rotate when the small feed cylinder is driven to rotate under the matching setting of the small toothed ring and the outer toothed ring, and the small feed cylinder rotates, so that the small feed cylinder can be effectively mixed with small feed in the small feed cylinder.

(3) The semi-submerged type puffed feed for the polyculture of fish, the manufacturing method and the device provide convenience conditions for the small charging barrel to be stably and rotatably installed on the bearing plate through the arrangement of the hollow I-shaped block, and provide installation space for the arrangement of the first discharging pipe, so that the use is more convenient.

(4) According to the semi-submerged type puffed feed for polyculture fish, the manufacturing method and the device, the stirring frame is driven by the rotating shaft to synchronously rotate through the arrangement of the stirring frame, a mixing space is provided for the primary mixing step and the secondary mixing step, and under the matching arrangement of the annular stirring groove and the scraper, the feed is guaranteed to be uniformly mixed, and meanwhile, the feed in the annular stirring groove is guaranteed to be effectively conveyed into the receiving basin through the second discharge pipe.

(5) This half formula of sinking puffed feed of polyculture fish, preparation method and device through under the setting of two sections of thick bamboo of keeping in, has effectively guaranteed the convenient use of device in the feed processing process, utilizes the cooperation setting of magnetic force piece and adsorption sheet, carries on spacingly to limit baffle's position, and then guarantees limit baffle to the effective shutoff of honeycomb duct.

Drawings

FIG. 1 is a schematic flow diagram of the present invention;

FIG. 2 is a schematic view showing the internal structure of the mixing box of the present invention;

FIG. 3 is a top view of the mixing box structure of the present invention;

FIG. 4 is an enlarged schematic view of the structure of FIG. 2 at A in accordance with the present invention;

FIG. 5 is a schematic structural view of the hollow I-shaped block of the present invention;

in the figure, 1, a motor; 2. a mixing box; 3. a rotating shaft; 4. a carrier plate; 5. a small charging barrel; 6. a hollow I-shaped block; 7. a filling port; 8. a small toothed ring; 9. an outer ring gear; 10. a first discharging pipe; 11. a first electromagnetic valve; 12. a stirring frame; 13. an adsorption sheet; 14. an annular stirring tank; 15. a squeegee; 16. a second discharge conduit; 17. a second electromagnetic valve; 18. a support frame; 19. a receiving basin; 20. a temporary storage cylinder; 21. a limit baffle; 22. a flow guide pipe; 23. a magnetic block.

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 obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Referring to fig. 1-5, the embodiment of the invention provides the following technical solutions: a semi-submerged type puffed feed for mixed culture of fish comprises the following raw materials in percentage by mass: 3% of fish meal, 35.05% of soybean meal containing 43% of protein, 26% of rapeseed meal, 20% of green cake, 8% of cassava starch, 3% of soybean oil, 1% of lard, 2.5% of monocalcium phosphate, 0.3% of salt, 1% of special puffing premix for grass carp, 0.1% of choline and 0.05% of antioxidant.

The preparation method of the semi-submerged type expanded feed for the polyculture fish specifically comprises the following steps:

step one, premixing small materials: according to the mass percentage: 0.3% of salt, 1% of special puffed premix for grass carps, 0.1% of choline and 0.05% of antioxidant, wherein the salt, the special puffed premix for grass carps, the choline and the antioxidant are precisely weighed and then placed in a small charging barrel 5, a motor 1 is started, the motor 1 drives a rotating shaft 3 to rotate to drive a bearing plate 4 to rotate, the bearing plate 4 drives the small charging barrel 5 to rotate, and in the rotating process of the small charging barrel 5, a small toothed ring 8 is meshed with an outer toothed ring 9, so that the small charging barrel 5 autorotates, additives are fully mixed, and mixed small materials are obtained;

step three, primary mixing: placing the primarily crushed ingredients in a temporary storage barrel 20, drawing out a limit baffle 21, allowing the primarily crushed ingredients to flow into a mixing box 2 through a guide pipe 22, opening a first electromagnetic valve 11 on a small material barrel 5, allowing the mixed small materials to fall into the mixing box 2, driving a rotating shaft 3 to rotate a stirring frame 12 while rotating a motor 1, mixing the primarily crushed ingredients and the mixed small materials for one time, opening a second electromagnetic valve 17 after mixing is completed, and conveying the primarily mixed materials into a receiving basin 19 to obtain a primary mixed material;

step four, crushing and mixing: conveying the primary mixture prepared in the third step to an ultrafine pulverizer for ultrafine grinding, wherein 98% of substances can pass through a 80-mesh screen to obtain final ground materials, conveying the final ground materials to another temporary storage cylinder 20, flowing into a mixing box 2 through a guide pipe 22, driving a rotating shaft 3 by a motor 1 to enable a stirring frame 12 to perform secondary mixing on the materials, opening a second electromagnetic valve 17 after the mixing is completed, and conveying the mixed materials to a receiving basin 19 to obtain secondary mixture;

step eight, oil injection screening: adding the soybean oil into an oil injection system according to the mass percent of 3% of the soybean oil to externally inject oil on the feed semi-finished product, and then screening out impurities and unqualified finished products again to obtain a feed finished product;

The manufacturing device of the semi-submersible type puffed feed for mixed fish comprises a mixing box 2 and a motor 1, in order to realize effective mixing of small feed barrels 5 to the mixed small feed, as shown in figure 2, the motor 1 is fixedly arranged in the middle of the top of an inner cavity of the mixing box 2, the motor 1 is a servo motor and is electrically connected with an external power supply and is controlled by a control switch, the bottom end of an output shaft of the motor 1 is fixedly connected with the top end of a rotating shaft 3 through a coupler, the bottom end of the rotating shaft 3 is rotatably connected with the bottom of the inner cavity of the mixing box 2 through a bearing, a bearing plate 4 is sleeved and fixedly arranged on the periphery of the rotating shaft 3, at least four small feed barrels 5 are arranged, the four small feed barrels 5 are rotatably arranged on the bearing plate 4 through hollow I-shaped blocks 6, the top of the mixing box 2 is provided with a filling port 7 matched with the small feed barrels 5, and a small toothed ring 8 is sleeved and fixedly arranged on the periphery of the small feed barrels 5, the outer toothed ring 9 is fixedly mounted on the inner wall of the mixing box 2, and the inner surface of the outer toothed ring 9 meshes with the outer surface of the small toothed ring 8.

In order to ensure the effective discharge of the mixed small materials, the bottom of the small material barrel 5 is communicated with a first material discharge pipe 10, the bottom end of the first material discharge pipe 10 penetrates through the hollow die block 6 and extends to the lower part of the hollow die block 6, and a first electromagnetic valve 11 is arranged on the surface of the first material discharge pipe 10.

As a preferred scheme, in order to realize the efficient utilization of the rotating shaft 3 and provide convenient stirring guarantee for the primary mixing and the secondary mixing, the stirring frame 12 is sleeved and fixedly installed on the outer surface of the rotating shaft 3 and is positioned below the bearing plate 4, as shown in figure 2, the stirring frame 12 comprises two right-angle plates and sleeves, one ends of the two right-angle plates are respectively and fixedly installed on the left side and the right side of the sleeves, the sleeves are sleeved and fixedly installed on the rotating shaft 3, the bottom ends of the two right-angle plates are fixedly connected with the tops of the scraping plates 15, the bottom of the mixing box 2 is provided with the annular stirring groove 14, at least three groups of stirring rib rods matched with the annular stirring groove 14 are sequentially and fixedly installed on the outer surfaces of the two right-angle plates from top to bottom, the scraping plates 15 matched with the bottom of the inner cavity of the annular stirring groove 14 are fixedly installed at the bottom of the stirring frame 12, the left side and the right side of the bottom of the inner cavity of the mixing box 2 are both communicated with the second discharge pipe 16 communicated with the annular stirring groove 14, and the second electromagnetic valve 17 is arranged on the surface of the second discharging pipe 16, a supporting frame 18 is fixedly arranged at the bottom of the mixing box 2, and a receiving basin 19 is arranged on the surface of the supporting frame 18.

In order to guarantee once mixing effectively depositing with the secondary before the material, guarantee the stability of limit baffle 21 position simultaneously, the quantity of a section of thick bamboo 20 of keeping in is provided with two at least, two keep in a section of thick bamboo 20 all through connecting block fixed mounting at the surface of mixing box 2, limit baffle 21 runs through and slidable mounting keeps in one side that a section of thick bamboo 20 kept away from mixing box 2, honeycomb duct 22's both ends communicate with the bottom of a section of thick bamboo 20 of keeping in and mixing box 2 surface respectively, limit baffle 21's top fixed mounting has magnetic block 23, and the surface of a section of thick bamboo 20 of keeping in inlays and is provided with the adsorption piece 13 with magnetic block 23 looks adaptation.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The half-sinking type puffed feed for mixed culture of fish is characterized in that: the raw materials comprise the following components in percentage by mass: 3% of fish meal, 35.05% of soybean meal, 26% of rapeseed meal, 20% of green cake, 8% of cassava starch, 3% of soybean oil, 1% of lard, 2.5% of monocalcium phosphate, 0.3% of salt, 1% of special puffing premix for grass carp, 0.1% of choline and 0.05% of antioxidant.

2. The expanded feed for the semi-submerged type mixed culture fish of claim 1, which is characterized in that: the soybean meal is 43% protein soybean meal.

3. A method for preparing a semi-submerged type puffed feed for polyculture fish is characterized by comprising the following steps: the method specifically comprises the following steps:

step one, premixing small materials: according to the mass percentage: 0.3% of salt, 1% of special puffed premix for grass carps, 0.1% of choline and 0.05% of antioxidant, wherein the salt, the special puffed premix for grass carps, the choline and the antioxidant are precisely weighed and then placed in a small charging barrel (5), a motor (1) is started, the motor (1) drives a rotating shaft (3) to rotate to drive a bearing plate (4) to rotate, the bearing plate (4) drives the small charging barrel (5) to rotate, and in the rotating process of the small charging barrel (5), a small toothed ring (8) is meshed with an outer toothed ring (9) to enable the small charging barrel (5) to autorotate to fully mix the additives to obtain mixed small materials;

step three, primary mixing: placing the primarily crushed ingredients in a temporary storage barrel (20), drawing out a limit baffle (21), allowing the primarily crushed ingredients to flow into a mixing box (2) through a guide pipe (22), opening a first electromagnetic valve (11) in a small material barrel (5), allowing the mixed small materials to fall into the mixing box (2), driving a rotating shaft (3) to rotate a stirring frame (12) while rotating a motor (1), mixing the primarily crushed ingredients and the mixed small materials for one time, opening a second electromagnetic valve (17) after mixing is completed, and conveying the primarily mixed materials into a receiving basin (19) to obtain a primary mixed material;

step four, crushing and mixing: conveying the primary mixture prepared in the third step to an ultrafine pulverizer for ultrafine grinding to obtain a final ground material, conveying the final ground material to another temporary storage cylinder (20), flowing into a mixing box (2) through a guide pipe (22), driving a rotating shaft (3) by a motor (1) to enable a stirring frame (12) to perform secondary mixing on the material, opening a second electromagnetic valve (17) after the mixing is completed, and conveying the mixed material to a receiving basin (19) to obtain a secondary mixture;

4. The method for preparing the expanded feed for the semi-submerged type polyculture fish of claim 3, wherein the method comprises the following steps: and the final crushed material in the fourth step is obtained by screening through an 80-mesh screen.

5. The utility model provides a making devices of popped fodder of half formula mixed culture fish, includes mixing box (2) and motor (1), its characterized in that: the motor (1) is fixedly arranged in the middle of the top of the inner cavity of the mixing box (2), the bottom end of the output shaft of the motor (1) penetrates through the mixing box (2) and is fixedly connected with the top end of the rotating shaft (3) through a coupler, the bottom end of the rotating shaft (3) is rotatably connected with the bottom of the inner cavity of the mixing box (2) through a bearing, the periphery of the rotating shaft (3) is sleeved and fixedly provided with a bearing plate (4), the top of the bearing plate (4) is rotationally connected with at least four small charging barrels (5) at even intervals through hollow I-shaped blocks (6), the top of the mixing box (2) is provided with a filling port (7) matched with the small charging barrel (5), a small toothed ring (8) is sleeved and fixedly arranged on the periphery of the small charging barrel (5), the inner wall of the mixing box (2) is fixedly provided with an outer gear ring (9) matched with the small gear ring (8).

6. The device for preparing the expanded feed for the semi-submersible type mixed culture fish as claimed in claim 5, wherein: the bottom of the small charging barrel (5) is communicated with a first discharging pipe (10), the bottom end of the first discharging pipe (10) penetrates through the hollow I-shaped block (6) and extends to the lower portion of the hollow I-shaped block (6), and a first electromagnetic valve (11) is arranged on the surface of the first discharging pipe (10).

7. The device for preparing the expanded feed for the semi-submersible type mixed culture fish as claimed in claim 5, wherein: the utility model discloses a wash basin, including axis of rotation (3), the surface of axis of rotation (3) and the below cover that is located loading board (4) are established and fixed mounting has stirring frame (12), annular stirred tank (14) have been seted up to the bottom of mixing box (2) inner chamber, the bottom fixed mounting of stirring frame (12) has scraper blade (15) with annular stirred tank (14) inner chamber bottom looks adaptation, the left and right sides of mixing box (2) inner chamber bottom all communicates have with the second of annular stirred tank (14) intercommunication arrange material pipe (16), and the surface that the second was arranged material pipe (16) is provided with second electromagnetic valve (17), the bottom fixed mounting of mixing box (2) has support frame (18), basin (19) are accepted to the surface placement of support frame (18).

8. The device for preparing the expanded feed for the semi-submersible type mixed culture fish as claimed in claim 5, wherein: the left and right sides of mixing box (2) all through connecting block fixed mounting at a section of thick bamboo (20) of keeping in, one side that a section of thick bamboo (20) kept away from mixing box (2) of keeping in runs through and slidable mounting has limit baffle (21), through honeycomb duct (22) intercommunication between the bottom of a section of thick bamboo (20) of keeping in and mixing box (2) surface, the top fixed mounting of limit baffle (21) has magnetic force piece (23), and the surface of a section of thick bamboo (20) of just keeping in inlays and is provided with adsorption piece (13) with magnetic force piece (23) looks adaptation.