阅读说明：本技术 一种油菜籽榨油后副产物菜籽饼制备饲料的方法 (Method for preparing feed from byproduct rapeseed cakes after rapeseed oil pressing ) 是由 朱运霞 何欣悦 于 2019-09-23 设计创作，主要内容包括：本发明提供了一种油菜籽榨油后副产物菜籽饼制备饲料的方法,由限位筒、注水单元和送料搅拌单元等配合完成菜籽饼饲料的制备；解决了现有菜籽饼饲料在混合物在搅拌的过程中主要存在的a：菜籽饼在压榨后都是块状凝结物,在搅拌的过程中很难粉碎且块状难以与玉米粉、麦麸和发酵剂等辅助材料充分混合均匀；b：现有搅拌都是将菜籽饼、玉米粉等集中混合加水搅拌,其容易导致加水搅拌不均匀；水分难以充分与菜籽饼、玉米粉等吸收,容易产生结块现象；影响菜籽饼的生产质量等难题。(the invention provides a method for preparing feed by a byproduct rapeseed cake after rapeseed oil pressing, which completes the preparation of the rapeseed cake feed by matching a limiting cylinder, a water injection unit, a feeding and stirring unit and the like; solves the problems that the prior rapeseed cake feed mainly has a: the rapeseed cakes are all blocky coagulates after being squeezed, and are difficult to crush in the stirring process and the blocky coagulates are difficult to be fully and uniformly mixed with auxiliary materials such as corn flour, wheat bran, leavening agent and the like; b: the existing stirring is to intensively mix rapeseed cakes, corn flour and the like, add water and stir, which easily causes uneven water adding and stirring; the moisture is difficult to be fully absorbed by rapeseed cakes, corn flour and the like, and the caking phenomenon is easy to generate; affecting the production quality of the rapeseed cakes and the like.)

1. a method for preparing feed by a byproduct rapeseed cake after rapeseed oil pressing is characterized in that: the specific processing steps for preparing the feed by the rapeseed cakes are as follows:

s1, crushing the rapeseed cakes: cutting a byproduct rapeseed cake after rapeseed oil pressing into blocks, and then crushing and grinding to obtain rapeseed cake powder;

s2, mixing material: adding a proper amount of corn flour, wheat bran and a leavening agent into the rapeseed cake powder in the step 1, and fully and uniformly mixing to obtain a rapeseed cake mixture;

S3, adding water for preparation: adding a proper amount of clear water into the rapeseed cake mixture obtained in the step 2, keeping the water content of the rapeseed cake mixture to be 50-65%, and uniformly stirring to obtain a viscous rapeseed cake mixture;

s4, charging and fermenting: filling the viscous rapeseed cake mixture obtained in the step 3 into a closed container, pricking a plastic bag at a cover opening of the container to enhance the sealing property of the rapeseed cake mixture, and performing sealed fermentation at indoor natural gas temperature for 3-5 days to obtain fermented rapeseed cake feed;

in the preparation method of the rapeseed cake feed as the byproduct after the rapeseed oil is pressed in the steps of S1-S4, the preparation of the rapeseed cake feed is completed by matching the limiting cylinder (1), the water injection unit (2), the feeding and stirring unit (3) and the like; wherein:

the water injection unit (2) is arranged in the limiting cylinder (1) in a movable connection mode, the feeding stirring unit (3) is arranged at the upper end of the limiting cylinder (1), and the water injection unit (2) is communicated with the feeding stirring unit (3) through a guide pipe;

The water injection unit (2) comprises a driving motor (21), a driving gear (22), a driving shaft lever (23), a driven gear (24), a material collecting barrel (25), a water spraying module (26), an annular bump (27) and a supporting column (28); the driving shaft rod (23) is mounted at the bottom end of the limiting cylinder (1) through a bearing, the inside of the driving shaft is of a hollow structure, a driven gear (24) is arranged on the outer wall of the middle part of the driving shaft, and a ball valve is arranged at the lower end of the driving shaft rod (23); the upper end of the driving shaft lever (23) is connected to the material collecting barrel (25); the bottom end of the interior of the material collecting barrel (25) is of an inverted cone structure, the water spraying modules (26) are uniformly arranged in the material collecting barrel (25), the water spraying modules (26) are matched with the annular convex blocks (27), the annular convex blocks (27) are arranged on the inner wall of the bottom end of the limiting barrel (1), and the outer walls of the upper ends of the annular convex blocks (27) are of structures with different protruding degrees; the driving motor (21) is installed at the bottom end of the limiting barrel (1) through a motor base, a driving gear (22) is connected to an output shaft of the driving motor (21), and the driving gear (22) is meshed with a driven gear (24); the lower extreme that is located aggregate section of thick bamboo (25) evenly is provided with support column (28), support column (28) lower extreme evenly be provided with the ball.

2. The method for preparing the feed from the rapeseed cakes which are byproducts after rapeseed oil extraction according to claim 1, which comprises the following steps: the feeding and stirring unit (3) comprises a disc (31), a conical barrel (32), a material limiting cone (33), a pressing roller (34), a bump (35), a limiting block (36) and a stirring module (37); the upper end of the disc (31) is provided with a conical cylinder (32), and guide holes which are communicated with the conical cylinder (32) are uniformly arranged at the upper end of the disc (31); the inside that is located a toper section of thick bamboo (32) is provided with stirring module (37), stirring module (37) on connect limited material awl (33), limited material awl (33) be located a toper section of thick bamboo (32) inside, the lower extreme of limited material awl (33) evenly is provided with stopper (36), stopper (36) on evenly be provided with the ball, just stopper (36) overlap joint on disc (31), the circumference outer wall that is located limited material awl (33) evenly is provided with presses material roller (34) through the bearing, the outer wall of pressing material roller (34) evenly be provided with lug (35), the inner wall that is located a toper section of thick bamboo (32) and presses material roller (34) to contact evenly is provided with lug (35), a toper section of thick bamboo (32) upper end be the toper structure, and the middle part that is located a toper section of thick bamboo (32) is provided with the water storage chamber.

3. The method for preparing the feed from the rapeseed cakes which are byproducts of rapeseed oil extraction according to claim 2, which comprises the following steps: the stirring module (37) comprises a double-shaft motor (371) and a stirring rod (372); biax motor (371) install in the middle part of disc (31) through the motor cabinet, the upper end output shaft that is located biax motor (371) passes through flange joint on material limiting cone (33), the lower extreme output shaft that is located biax motor (371) has puddler (372) through the coupling joint.

4. the method for preparing the feed from the rapeseed cakes which are byproducts after rapeseed oil extraction according to claim 1, which comprises the following steps: the water spraying module (26) comprises a movable rod (261), a matching block (262), a limiting spring (263) and a water spraying head (264); the outer wall of the movable rod (261) is sleeved with a limiting spring (263), the movable rod (261) is installed inside the material collecting barrel (25) in a sliding fit mode, a matching block (262) is connected to the lower end of the movable rod (261), and the matching block (262) is matched with the annular convex block (27); the outer wall of movable rod (261) is provided with protruding structure, and the protruding structure of movable rod (261) outer wall cooperatees with sprinkler bead (264), sprinkler bead (264) evenly install on the inner wall of collection feed cylinder (25).

5. The method for preparing the feed from the rapeseed cakes which are byproducts of rapeseed oil extraction according to claim 4, which comprises the following steps: the sprinkler head (264) comprises a water cover (2641), a pumping rod (2642), a fixed spring (2643), a fixed block (2644) and a connecting block (2645); be located the inside of water cover (2641) and be provided with plug rod (2642) through sliding fit mode, plug rod (2642) outer wall cover be equipped with fixed spring (2643), the one end that is located fixed spring (2643) is contradicted on fixed block (2644), fixed block (2644) evenly set up the inner wall at water cover (2641), the one end that is located fixed block (2644) is provided with connecting block (2645) through threaded connection mode.

6. The method for preparing the feed from the rapeseed cakes which are byproducts of rapeseed oil extraction according to claim 3, which comprises the following steps: the outer wall of the stirring rod (372) is of a spiral type protruding fan blade structure.

Technical Field

The invention relates to the technical field of feed processing, in particular to a method for preparing feed by a byproduct rapeseed cake after rapeseed oil pressing.

Background

china is a big rape planting country, and the planting area and the yield are in the first place in the world. The rapeseed has high protein and fat contents, wherein the protein accounts for 25-45%, and the fat content accounts for 30-50%, and the rapeseed is one of the most important sources of vegetable oil and protein for feed in China. The rapeseed meal/cake is a byproduct of rape oil extraction, has high protein content of 36-50 percent and fat content of only 1.5-5 percent, and is mainly used as a protein resource of feed in animal production.

The rapeseed cake needs to be added with auxiliary materials such as corn flour, wheat bran and leavening agent and fully stirred in the process of preparing the feed, but the prior rapeseed cake feed mainly has the following problems in the process of stirring the mixture: a: the rapeseed cakes are all blocky coagulates after being squeezed, and are difficult to crush in the stirring process and the blocky coagulates are difficult to be fully and uniformly mixed with auxiliary materials such as corn flour, wheat bran, leavening agent and the like; b: the existing stirring is to intensively mix rapeseed cakes, corn flour and the like, add water and stir, which easily causes uneven water adding and stirring; the moisture is difficult to be fully absorbed by rapeseed cakes, corn flour and the like, and the caking phenomenon is easy to generate; affecting the production quality of the rapeseed cakes.

Disclosure of Invention

In order to achieve the purpose, the invention adopts the following technical scheme, a method for preparing feed by a byproduct rapeseed cake after rapeseed oil pressing, and the specific processing steps of preparing the feed by the rapeseed cake are as follows:

s1, crushing the rapeseed cakes: cutting a byproduct rapeseed cake after rapeseed oil pressing into blocks, and then crushing and grinding to obtain rapeseed cake powder;

s2, mixing material: adding a proper amount of corn flour, wheat bran and a leavening agent into the rapeseed cake powder in the step 1, and fully and uniformly mixing to obtain a rapeseed cake mixture;

s3, adding water for preparation: adding a proper amount of clear water into the rapeseed cake mixture obtained in the step 2, keeping the water content of the rapeseed cake mixture to be 50-65%, and uniformly stirring to obtain a viscous rapeseed cake mixture;

S4, charging and fermenting: filling the viscous rapeseed cake mixture obtained in the step 3 into a closed container, pricking a plastic bag at a cover opening of the container to enhance the sealing property of the rapeseed cake mixture, and performing sealed fermentation at indoor natural gas temperature for 3-5 days to obtain fermented rapeseed cake feed;

In the preparation method of the rapeseed cake feed as the byproduct after the rapeseed oil is pressed in the steps of S1-S4, the preparation of the rapeseed cake feed is completed by matching the limiting cylinder, the water injection unit, the feeding and stirring unit and the like; wherein:

the inside of the limiting cylinder is provided with a water injection unit in a movable connection mode, the upper end of the limiting cylinder is provided with a feeding stirring unit, and the water injection unit and the feeding stirring unit are communicated through a guide pipe.

The water injection unit comprises a driving motor, a driving gear, a driving shaft lever, a driven gear, a material collecting barrel, a water spraying module, an annular bump and a supporting column; the driving shaft rod is arranged at the bottom end of the limiting cylinder through a bearing, the driving shaft is internally of a hollow structure, a driven gear is arranged on the outer wall of the middle part of the driving shaft, and a spherical valve is arranged at the lower end of the driving shaft rod; the upper end of the driving shaft lever is connected to the material collecting barrel; the inner bottom end of the material collecting barrel is of an inverted cone structure, the water spraying modules are uniformly arranged in the material collecting barrel and matched with the annular convex blocks, the annular convex blocks are arranged on the inner wall of the bottom end of the limiting barrel, and the outer walls of the upper ends of the annular convex blocks are of structures with different protruding degrees; the driving motor is arranged at the bottom end of the limiting cylinder through a motor base, a driving gear is connected to an output shaft of the driving motor, and the driving gear is meshed with the driven gear; supporting columns are uniformly arranged at the lower end of the material collecting barrel, and balls are uniformly arranged at the lower ends of the supporting columns; the arranged water injection unit is used for fully watering and moistening the rapeseed cake mixture falling into the material collecting barrel every time, and the water injection module is matched with the annular lug to change the flow of water injection at any time, so that the rapeseed cake mixture is fully moistened by water and is convenient to stir; and the rapeseed cake mixture does not generate the phenomena of caking, uneven stirring and the like.

the feeding and stirring unit comprises a disc, a conical barrel, a material limiting cone, a pressing roller, a bump, a limiting block and a stirring module; the upper end of the disc is provided with a conical cylinder, and guide holes which are communicated with the conical cylinder are uniformly arranged at the upper end of the disc; the stirring device is characterized in that a stirring module is arranged in the conical barrel, the stirring module is connected with a material limiting cone, the material limiting cone is arranged in the conical barrel, the lower end of the material limiting cone is uniformly provided with a limiting block, the limiting block is uniformly provided with balls, the limiting block is overlapped on the disc, the circumferential outer wall of the material limiting cone is uniformly provided with a pressing roller through a bearing, the outer wall of the pressing roller is uniformly provided with a convex block, the inner wall of the conical barrel, which is in contact with the pressing roller, is uniformly provided with a convex block, the upper end of the conical barrel is of a conical structure, and the middle of the conical barrel is provided with a water storage cavity; pouring a mixture of rapeseed cakes and the like into the tapered cylinder, grinding the rapeseed cake mixture falling between the tapered cylinder and the material limiting cone by the rotation of the material limiting cone, and enabling the ground mixture to fall into the material collecting cylinder and fully mixing and stirring the rapeseed cake mixture by uniformly spraying water and stirring; the falling mixture is continuously sprayed with water and stirred, so that the uniform stirring of the rapeseed cake mixture is ensured, and the phenomena of caking and the like are avoided; the mixing quality of the rapeseed cakes is ensured.

the stirring module comprises a double-shaft motor and a stirring rod; the double-shaft motor is arranged in the middle of the disc through a motor base, an output shaft at the upper end of the double-shaft motor is connected to the material limiting cone through a flange, and an output shaft at the lower end of the double-shaft motor is connected with a stirring rod through a coupler; the stirring rod at the lower end is driven to stir and rotate by the operation of the double-shaft motor, so that the uniform stirring of the rapeseed cake feed mixture is promoted, and the upper end of the stirring rod drives the rapeseed cake mixture in the conical barrel to pass through the material limiting cone and roll, so that the rapeseed cake mixture is changed into fine particles which uniformly fall into the material collecting barrel, the stirring of the mixture feed is facilitated, and the uniform size of the mixture feed particles is ensured; the subsequent preparation quality of the rapeseed cakes is ensured.

preferably; the water spraying module comprises a movable rod, a matching block, a limiting spring and a water spraying head; the outer wall of the movable rod is sleeved with a limiting spring, the movable rod is installed inside the material collecting barrel in a sliding fit mode, the lower end of the movable rod is connected with a matching block, and the matching block is matched with the annular convex block; the outer wall of the movable rod is provided with a protruding structure, the protruding structure of the outer wall of the movable rod is matched with the water spraying heads, and the water spraying heads are uniformly arranged on the inner wall of the material collecting barrel; the matching block is matched with the annular convex block to drive the movable rod to move up and down so as to control the flow of the sprinkler head; further ensuring the stirring of the inner rapeseed cake feed.

Preferably; the sprinkler head comprises a water cover, a pumping rod, a fixed spring, a fixed block and a connecting block; a pumping rod is arranged in the water cover in a sliding fit mode, a fixed spring is sleeved on the outer wall of the pumping rod, one end of the fixed spring abuts against the fixed block, the fixed block is uniformly arranged on the inner wall of the water cover, and a connecting block is arranged at one end of the fixed block in a threaded connection mode; the pressure of water flow in the water cover is controlled by fully matching the top ends of the movable rod and the pumping rod, so that the flow rate of water is regulated, and the stirring of the inner rapeseed cake feed is further controlled.

Preferably: the outer wall of the stirring rod is of a spiral type protruding fan blade structure; set the outer wall of puddler to spiral convex flabellum structure and can drive the inside fodder of collecting cylinder and carry out thorough rolling from bottom to top when the puddler stirs the rotation, make its even mix the stirring with water etc..

the invention has the beneficial effects that:

According to the invention, the water injection unit is used for fully watering and moistening the rapeseed cake mixture falling into the material collecting barrel every time, and the water injection module is matched with the annular bump to change the flow of water injection at any time, so that the rapeseed cake mixture is fully moistened by water and is convenient to stir; and the phenomenon of caking and uneven stirring of the rapeseed cake mixture is avoided;

The double-shaft motor works to drive the stirring rod at the lower end to stir and rotate, so that the uniform stirring of the rapeseed cake feed mixture is promoted, and the upper end of the double-shaft motor drives the rapeseed cake mixture in the conical cylinder to pass through the material limiting cone and roll, so that the rapeseed cake mixture is changed into fine particles which uniformly fall into the material collecting cylinder, the stirring of the mixture feed is facilitated, and the uniform particle size of the mixture feed is ensured; the subsequent preparation quality of the rapeseed cakes is ensured.

drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic view showing a process for preparing a feed from a rapeseed cake according to the present invention;

FIG. 2 is a schematic structural diagram of the limiting cylinder, the water injection unit and the feeding and stirring unit;

FIG. 3 is an enlarged view of a portion of the invention at A in FIG. 2;

fig. 4 is a partial enlarged view of the invention at B in fig. 2.

Detailed Description

In order to make the technical means, the original characteristics, the achieved purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings, wherein the left, right, front, back and other directions described in the embodiments of the present application are all used as references of the product, and are opposite to the left, right, front, back and other directions seen by the naked eyes of the skilled person. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

As shown in fig. 1 to 4, a method for preparing a feed from a rapeseed cake, which is a byproduct after oil extraction from rapeseed, specifically comprises the following processing steps:

S1, crushing the rapeseed cakes: cutting a byproduct rapeseed cake after rapeseed oil pressing into blocks, and then crushing and grinding to obtain rapeseed cake powder;

s2, mixing material: adding a proper amount of corn flour, wheat bran and a leavening agent into the rapeseed cake powder in the step 1, and fully and uniformly mixing to obtain a rapeseed cake mixture;

S3, adding water for preparation: adding a proper amount of clear water into the rapeseed cake mixture obtained in the step 2, keeping the water content of the rapeseed cake mixture to be 50-65%, and uniformly stirring to obtain a viscous rapeseed cake mixture;

s4, charging and fermenting: filling the viscous rapeseed cake mixture obtained in the step 3 into a closed container, pricking a plastic bag at a cover opening of the container to enhance the sealing property of the rapeseed cake mixture, and performing sealed fermentation at indoor natural gas temperature for 3-5 days to obtain fermented rapeseed cake feed;

in the preparation method of the rapeseed cake feed as a byproduct after rapeseed oil pressing in the steps of S1-S4, the preparation of the rapeseed cake feed is completed by matching the limiting cylinder 1, the water injection unit 2, the feeding and stirring unit 3 and the like; wherein:

The water injection unit 2 is arranged in the limiting cylinder 1 in a movable connection mode, the feeding and stirring unit 3 is arranged at the upper end of the limiting cylinder 1, and the water injection unit 2 is communicated with the feeding and stirring unit 3 through a guide pipe;

The feeding and stirring unit 3 comprises a disc 31, a conical barrel 32, a material limiting cone 33, a pressing roller 34, a bump 35, a limiting block 36 and a stirring module 37; the upper end of the disc 31 is provided with a conical cylinder 32, and guide holes which are communicated with the conical cylinder 32 are uniformly arranged at the upper end of the disc 31; a stirring module 37 is arranged in the conical barrel 32, the stirring module 37 is connected with a material limiting cone 33, the material limiting cone 33 is arranged in the conical barrel 32, the lower end of the material limiting cone 33 is uniformly provided with a limiting block 36, the limiting block 36 is uniformly provided with balls, the limiting block 36 is lapped on the disc 31, pressing rollers 34 are uniformly arranged on the circumferential outer wall of the material limiting cone 33 through bearings, the outer wall of each pressing roller 34 is uniformly provided with a convex block 35, the inner wall of the conical barrel 32, which is in contact with the pressing rollers 34, is uniformly provided with a convex block 35, the upper end of the conical barrel 32 is of a conical structure, and the middle part of the conical barrel 32 is provided with a water storage cavity; pouring a mixture of rapeseed cakes and the like into the tapered cylinder 32, grinding the rapeseed cake mixture falling between the tapered cylinder 32 and the material limiting cone 33 by the rotation of the material limiting cone 33, and enabling the ground mixture to fall into the material collecting cylinder 25 and fully mixing and stirring the rapeseed cake mixture by uniformly spraying water and stirring; the falling mixture is continuously sprayed with water and stirred, so that the uniform stirring of the rapeseed cake mixture is ensured, and the phenomena of caking and the like are avoided; the mixing quality of the rapeseed cakes is ensured.

The stirring module 37 comprises a double-shaft motor 371 and a stirring rod 372; the double-shaft motor 371 is arranged in the middle of the disc 31 through a motor base, an output shaft at the upper end of the double-shaft motor 371 is connected to the material limiting cone 33 through a flange, an output shaft at the lower end of the double-shaft motor 371 is connected with a stirring rod 372 through a coupler, and the outer wall of the stirring rod 372 is of a spiral type protruding fan blade structure; set the outer wall of puddler 372 to spiral convex flabellum structure and can drive the inside fodder of collecting cylinder 25 from bottom to top and carry out thorough rolling when puddler 327 stirs the rotation, make its even mix the stirring with water etc.. The double-shaft motor 371 is operated to drive the stirring rod 372 at the lower end to stir and rotate, so that the uniform stirring of the rapeseed cake feed mixture is promoted, the upper end of the double-shaft motor drives the rapeseed cake mixture in the conical barrel 32 to pass through the material limiting cone 33 and roll, and then the rapeseed cake mixture is changed into fine particles which uniformly fall into the material collecting barrel 25, so that the stirring of the mixture feed is facilitated, and the uniform size of the mixture feed particles is ensured; the subsequent preparation quality of the rapeseed cakes is ensured.

The water injection unit 2 comprises a driving motor 21, a driving gear 22, a driving shaft rod 23, a driven gear 24, a material collecting barrel 25, a water spraying module 26, an annular bump 27 and a supporting column 28; the driving shaft rod 23 is arranged at the bottom end of the limiting cylinder 1 through a bearing, the inside of the driving shaft is of a hollow structure, a driven gear 24 is arranged on the outer wall of the middle part of the driving shaft, and a spherical valve is arranged at the lower end of the driving shaft rod 23; the upper end of the driving shaft rod 23 is connected to the material collecting barrel 25; the bottom end of the interior of the material collecting barrel 25 is of an inverted cone structure, the interior of the material collecting barrel 25 is uniformly provided with water spraying modules 26, the water spraying modules 26 are matched with annular bumps 27, the annular bumps 27 are arranged on the inner wall of the bottom end of the limiting barrel 1, and the outer wall of the upper end of each annular bump 27 is of a structure with different protruding degrees; the driving motor 21 is installed at the bottom end of the limiting cylinder 1 through a motor base, a driving gear 22 is connected to an output shaft of the driving motor 21, and the driving gear 22 is meshed with a driven gear 24; supporting columns 28 are uniformly arranged at the lower ends of the material collecting barrels 25, and balls are uniformly arranged at the lower ends of the supporting columns 28; the rapeseed cake mixture falling into the material collecting barrel 25 each time is fully watered and moistened by the arranged water injection unit 2, and the water injection module 26 is matched with the annular bump 27 to change the flow of water injection at any time, so that the rapeseed cake mixture is fully moistened by water and is convenient to stir; and the rapeseed cake mixture does not generate the phenomena of caking, uneven stirring and the like.

the water spraying module 26 comprises a movable rod 261, a matching block 262, a limiting spring 263 and a water spraying head 264; the outer wall of the movable rod 261 is sleeved with a limiting spring 263, the movable rod 261 is installed inside the material collecting barrel 25 in a sliding fit mode, the lower end of the movable rod 261 is connected with a matching block 262, and the matching block 262 is matched with the annular convex block 27; the outer wall of the movable rod 261 is provided with a convex structure, the convex structure of the outer wall of the movable rod 261 is matched with the water spray heads 264, and the water spray heads 264 are uniformly arranged on the inner wall of the material collecting barrel 25; the matching block 262 is matched with the annular convex block 27 to drive the movable rod 261 to move up and down so as to control the flow rate of the sprinkler head 264; further ensuring the stirring of the inner rapeseed cake feed; the sprinkler head 264 comprises a water shield 2641, a pumping rod 2642, a fixed spring 2643, a fixed block 2644 and a connecting block 2645; a plug rod 2642 is disposed inside the water cover 2641 in a sliding fit manner, a fixing spring 2643 is sleeved on an outer wall of the plug rod 2642, one end of the fixing spring 2643 abuts against the fixing block 2644, the fixing blocks 2644 are uniformly disposed on an inner wall of the water cover 2641, and a connecting block 2645 is disposed at one end of the fixing block 2644 in a threaded connection manner; the pressure of the water flow in the water hood 2641 is controlled by fully matching the top ends of the movable rod 261 and the plug rod 2642, so that the flow rate of water is adjusted, and the stirring of the rapeseed cake feed in the water hood is further controlled.

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