Clausena lansium stemming and fermenting integrated device

Abstract

The utility model discloses a clausena lansium stemming and fermenting integrated device, and relates to the technical field of fruit fermentation, the clausena lansium stemming and fermenting integrated device comprises a fermentation tank, a crushing box and a stemming box, the bottommost part of the fermentation tank is provided with a liquid outlet, the crushing box is communicated with the fermentation tank, and two crushing rollers with parallel axes and relatively rotating are rotatably arranged in the crushing box; a feeding port and a slag discharging port are formed in the stem removing box, the stem removing box is communicated with the crushing box, two stem removing rollers and a screen are rotationally installed in the stem removing box, the axes of the two stem removing rollers are parallel, the two stem removing rollers rotate relatively, the screen is located below the stem removing rollers, and the communicating position of the stem removing box and the crushing box is located on the lower side of the screen. The integrated operation of peduncle removal, crushing and fermentation of the clausena lansium is realized, the occupied area of equipment is reduced in the whole process, the pollution risk in the material transfer process is reduced, and the fermentation quality and the production efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the field of fruit fermentation technology, and more specifically, to an integrated device for destemming and fermenting yellow peel. Background Technology

[0002] The fruit of the wampee fruit is pale yellow to dark yellow, with milky white, translucent flesh and a sweet and sour taste. It can be eaten directly or processed into various food products such as dried fruit, juice, and jam. In the wampee processing industry, destemming, crushing, and fermentation of the wampee fruit are key steps in the production of wampee wine, jam, and other products.

[0003] In the traditional processing of yellow peel fermentation, destemming, crushing and fermentation often need to be carried out in different equipment. This step-by-step processing method has many drawbacks. On the one hand, the use of multiple equipment leads to a large production space occupation and high equipment purchase and maintenance costs. On the other hand, the materials are easily contaminated by external microorganisms during multiple transfers, affecting the quality and safety of fermented products, and increasing labor intensity and production cycle.

[0004] In conclusion, how to provide a yellow peel fermentation device that reduces equipment size while improving fermentation quality is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide an integrated device for destemming and fermenting wampee, which improves the destemming and crushing effect of wampee, precisely controls the fermentation temperature, and optimizes the stirring method, thereby improving the fermentation quality and efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A device for destemming and fermenting yellow peel, comprising:

[0008] A fermenter, wherein a drain outlet is provided at the bottom of the fermenter;

[0009] A crushing box is connected to the fermentation tank, and two crushing rollers with parallel axes and relative rotation are rotatably installed inside the crushing box;

[0010] The destemming box is equipped with a feed inlet and a slag discharge outlet. The destemming box is connected to the crushing box. Two destemming rollers with parallel axes and rotating relative to each other are rotatably installed inside the destemming box. A screen is located below the destemming rollers and fixedly installed inside the destemming box. The connection between the destemming box and the crushing box is located below the screen.

[0011] Furthermore, the present invention provides that the destalking roller consists of two coaxially arranged turntables and a plurality of destalking rods arranged in parallel. The two turntables are respectively located on both sides of the destalking rods and are fixedly connected to the destalking rods, and the plurality of destalking rods are evenly distributed along the axis of the turntables.

[0012] Furthermore, the present invention provides a push plate inside the destemming box, the push plate being located above the screen and sliding in a direction perpendicular to the slag discharge port, and a drive component for controlling the sliding of the push plate being installed on the destemming box.

[0013] Furthermore, in this utility model, a receiving cylinder is provided between the destemming box and the crushing box. The upper side of the receiving cylinder is connected to the discharge port of the destemming box, and the bottom of the receiving cylinder is connected to the feed port of the crushing box.

[0014] Furthermore, in this invention, a stirring shaft is rotatably installed inside the fermentation tank, one end of the stirring shaft extends out of the fermentation tank, a plurality of stirring blades are installed on the stirring shaft, and the fermentation tank is provided with a rotating component for controlling the rotation of the stirring shaft.

[0015] Furthermore, in this invention, the plurality of stirring blades and the stirring shaft are arranged at a preset angle.

[0016] Furthermore, the present invention includes a temperature detector and a heating tube installed inside the fermentation tank, and a controller and a heater installed outside the fermentation tank. The heater, the temperature detector and the controller are electrically connected, and the heating tube and the heater are electrically connected.

[0017] Furthermore, the fermentation tank is provided with an exhaust port, and an exhaust valve is installed at the exhaust port.

[0018] Furthermore, the fermenter is provided with a pH adjustment port.

[0019] Furthermore, the fermenter is provided with a feeding port, a feeding pipe is installed at the feeding port, and an end cap is detachably installed at the end of the feeding pipe away from the fermenter.

[0020] The integrated destemming and fermentation device for wampee provided by this utility model involves installing a destemming box, a crushing box, and a fermentation tank from top to bottom. The wampee is then driven by gravity into the crushing box and fermentation tank sequentially. The destemming box has an inlet and a outlet for slag. The destemming box is connected to the crushing box. Inside the destemming box, two destemming rollers with parallel and relatively rotating axes are rotatably installed, along with a screen located below the destemming rollers. The connection between the destemming box and the crushing box is located below the screen. In other words, the destemming rollers remove the fruit stems from the wampee, and the removed stems are blocked by the screen and pass through the destemming box. The slag is discharged through the discharge port, while the wampee enters the crushing box after passing through the screen. The crushing box is connected to the fermentation tank. Inside the crushing box, two crushing rollers with parallel axes and relative rotation are installed. Under the squeezing and shearing action of the two crushing rollers, the wampee peel and pulp are crushed into small pieces. The crushed wampee pieces are pushed into the fermentation tank by the crushing rollers, realizing the integrated operation of wampee destemming, crushing and fermentation. The whole process reduces the equipment footprint, reduces the risk of contamination during material transfer, and improves fermentation quality and production efficiency. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall axial side structure provided by this utility model;

[0023] Figure 2 This is a schematic diagram of the internal axial structure of the destemming box provided by this utility model;

[0024] Figure 3 This is a schematic diagram of the internal shaft side structure of the crushing box provided by this utility model;

[0025] Figure 4 This is a structural schematic diagram of the overall side view of the present invention.

[0026] Figures 1-4 In the accompanying drawings, the reference numerals include:

[0027] 1. Fermentation tank; 2. Drain outlet; 3. Crushing box; 4. Crushing roller; 5. Destemming box; 6. Feed inlet; 7. Destemming roller; 701. Turntable; 702. Destemming rod; 703. Push plate; 704. Drive component; 8. Slag discharge port; 9. Screen; 10. Receiving cylinder; 11. Stirring shaft; 12. Stirring blades; 13. Rotating component; 14. Heating tube; 15. Heater; 16. Exhaust port; 17. pH adjustment port; 18. Feeding pipe. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] The core of this invention is to provide an integrated device for destemming and fermenting wampee, which improves the destemming and crushing effect of wampee, precisely controls the fermentation temperature, and optimizes the stirring method, thereby improving the fermentation quality and efficiency.

[0030] Please refer to Figure 1 A yellow peel destemming and fermentation integrated device includes a fermentation tank 1, a crushing box 3, and a destemming box 5. The bottom of the fermentation tank 1 is provided with a drain port 2. The crushing box 3 is connected to the fermentation tank 1. Two crushing rollers 4 with parallel axes and rotating relative to each other are rotatably installed inside the crushing box 3. The destemming box 5 is provided with a feed port 6 and a slag discharge port 8. The destemming box 5 is connected to the crushing box 3. Two destemming rollers 7 with parallel axes and rotating relative to each other and a screen 9 located below the destemming rollers 7 are rotatably installed inside the destemming box 5. The connection between the destemming box 5 and the crushing box 3 is located below the screen 9.

[0031] It should be noted that, in this embodiment of the invention, the yellow peel can be washed before fermentation.

[0032] In addition, in this embodiment of the invention, the fermentation tank 1, the crushing box 3 and the destemming box 5 are fixedly connected by a frame, and the bottom of the frame is equipped with casters to facilitate movement during use. Furthermore, the fermentation tank 1, the crushing box 3 and the destemming box 5 are sealed and connected through pipes.

[0033] In addition, in this embodiment of the present invention, a drain pipe is installed at the drain outlet 2, and a control valve is installed on the drain pipe to control the opening and closing of the drain outlet 2. The fermented fruit pulp is discharged through the drain outlet 2, and solid-liquid separation is achieved externally.

[0034] Optionally, in some embodiments, the aperture of the sieve 9 can be selected according to the actual use. Specifically, the aperture of the sieve 9 is larger than the maximum diameter of the wampee, and the fruit stalk is long enough to not pass through the sieve 9 and fall off.

[0035] Optionally, in some embodiments, to further improve the screening effect of fruit stems, two screens 9 can be set. The first screen 9 is used to screen longer fruit stems and yellow peels to achieve their separation. The second screen 9 has a smaller aperture than the smallest yellow peel and is used to screen smaller fruit stems and yellow peels. The second screen 9 is inclined, with the inclined direction facing the crushing box 3. When the yellow peel falls from the first screen 9 to the second screen 9, the yellow peel will roll and enter the crushing box 3. The smaller fruit stems cannot roll due to their irregular shape. At the same time, because their particles are smaller, they will pass through the second screen 9, thereby achieving complete separation of yellow peels and fruit stems. The smaller fruit stems screened by the second screen 9 are discharged through the slag discharge port 8.

[0036] In use, the destemming box 5, crushing box 3, and fermentation tank 1 are installed sequentially from top to bottom, so that the wampee fruit enters the crushing box 3 and fermentation tank 1 sequentially under gravity. The destemming box 5 is equipped with a feed inlet 6 and a slag discharge outlet 8. The destemming box 5 is connected to the crushing box 3. Inside the destemming box 5, two destemming rollers 7 with parallel axes and relative rotation are rotatably installed, along with a screen 9 located below the destemming rollers 7. The connection between the destemming box 5 and the crushing box 3 is located below the screen 9. That is to say, the destemming rollers 7 remove the fruit stems from the wampee fruit, and the removed fruit stems are blocked by the screen 9 and pass through the slag discharge outlet on the destemming box 5. 8. The yellow peel is discharged, and after passing through the screen 9, it enters the crushing box 3. The crushing box 3 is connected to the fermentation tank 1. Inside the crushing box 3, there are two crushing rollers 4 with parallel axes that rotate relative to each other. Under the squeezing and shearing action of the two crushing rollers 4, the peel and pulp of the yellow peel entering the crushing box 3 are crushed into small pieces. The crushed yellow peel pieces are pushed into the fermentation tank 1 by the crushing rollers 4, realizing the integrated operation of destemming, crushing and fermenting of yellow peel. The whole process reduces the equipment footprint, reduces the risk of contamination during material transfer, and improves fermentation quality and production efficiency.

[0037] Please refer to Figure 2 In some embodiments, the destemming roller 7 consists of two coaxially arranged turntables 701 and several destemming rods 702 arranged in parallel. The two turntables 701 are located on both sides of the destemming rods 702 and are fixedly connected to the destemming rods 702. The several destemming rods 702 are evenly distributed along the axis of the turntables 701. That is to say, when the wampee enters the destemming box 5, it first passes through the two destemming rollers 7. Under the action of friction and extrusion force generated by the rotation of the destemming rollers 7, the wampee comes into contact with the destemming rods 702. Due to the toughness of the fruit stem and the special nature of the connection part, the fruit stem is separated from the wampee under the pulling of friction and extrusion force.

[0038] Optionally, in some embodiments, the rotation trajectory of the destemming rods 702 of the two destemming rollers 7 retains a preset gap. Specifically, the size of the gap is precisely designed according to the size of the yellow peel, which can both ensure that the yellow peel passes through smoothly and effectively separate the fruit stems.

[0039] Optionally, in some embodiments, a plurality of destemming rods 702 are evenly distributed around the axis of turntable 701, while a preset gap is maintained between the plurality of destemming rods 702. Specifically, the size of the gap is precisely designed according to the size of the yellow peel, so as to ensure that the yellow peel can pass through smoothly and effectively separate the fruit stem.

[0040] Optionally, in some embodiments, a non-slip layer is provided on each of the destemming rods 702, and the non-slip layer may be made of materials such as rubber or silicone.

[0041] Please refer to Figure 2 In some embodiments, the destemming box 5 is provided with a push plate 703, which is located on the upper side of the screen 9 and slides in a direction perpendicular to the slag discharge port 8. The destemming box 5 is equipped with a drive component 704 to control the sliding of the push plate 703. That is, by sliding the push plate 703 on the screen 9, the push plate 703 pushes the fruit stems retained by the screen 9 and discharges them from the slag discharge port 8, ensuring that the screen 9 always has a good filtering and screening effect.

[0042] Optionally, in some embodiments, the drive unit 704 may be an electric cylinder. Specifically, the electric cylinder is installed on the destemming box 5, and the axis of the electric cylinder is perpendicular to the slag discharge port 8. The extended end of the electric cylinder is fixedly connected to the push plate 703, so that the extension and retraction function of the electric cylinder can be used to control the push plate 703 to push the fruit stalks retained by the screen 9 out of the slag discharge port 8.

[0043] In other embodiments, the drive unit 704 may be a cylinder. Specifically, the cylinder is installed on the destemming box 5, and the cylinder axis is perpendicular to the slag discharge port 8. The extended end of the cylinder is fixedly connected to the push plate 703, so that the extension and retraction function of the cylinder can be used to control the push plate 703 to push the fruit stalks retained by the screen 9 out of the slag discharge port 8.

[0044] In other embodiments, the drive unit 704 may be a hydraulic cylinder. Specifically, the hydraulic cylinder is mounted on the destemming box 5, and the axis of the hydraulic cylinder is perpendicular to the slag discharge port 8. The extended end of the hydraulic cylinder is fixedly connected to the push plate 703, so that the extension and retraction function of the hydraulic cylinder can be used to control the push plate 703 to push the fruit stalks retained by the screen 9 out of the slag discharge port 8.

[0045] In some other embodiments, the drive unit 704 may be a motor. Specifically, the motor is mounted on the destemming box 5, and a screw with its axis perpendicular to the slag discharge port 8 is rotatably installed inside the destemming box 5. The push plate 703 is threadedly engaged with the screw, so that the motor controls the rotation of the screw, thereby controlling the push plate 703 to push out the fruit stalks retained by the screen 9 from the slag discharge port 8.

[0046] Please refer to Figure 1 In some embodiments, a receiving cylinder 10 is provided between the destemming box 5 and the crushing box 3. The upper side of the receiving cylinder 10 is connected to the discharge port of the destemming box 5, and the bottom of the receiving cylinder 10 is connected to the feed port 6 of the crushing box 3. The receiving cylinder 10 is used to receive the yellow peel and to buffer the crushing of the yellow peel, preventing the yellow peel from entering the crushing box 3 in a concentrated manner, thereby improving the crushing effect of the yellow peel.

[0047] Optionally, in some embodiments, an adjustment plate is provided at the connection between the receiving cylinder 10 and the crushing box 3. The adjustment plate is slidably installed on the receiving cylinder 10. By pushing and pulling the adjustment plate, the overlapping area between it and the connection between the receiving cylinder 10 and the crushing box 3 is changed, thereby realizing the control of the yellow peel feeding efficiency.

[0048] Please refer to Figure 3 In some embodiments, a stirring shaft 11 is rotatably installed inside the fermentation tank 1, with one end of the stirring shaft 11 extending out of the fermentation tank 1. Several stirring blades 12 are installed on the stirring shaft 11. The fermentation tank 1 is provided with a rotating component 13 to control the rotation of the stirring shaft 11. In other words, in order to improve the fermentation effect of wampee in the fermentation tank 1, by pressing the stirring shaft 11 inside the fermentation tank 1 and controlling the rotation of the stirring shaft 11 through the rotating component 13, it is possible to control several stirring blades 12 to stir the wampee fragments in the fermentation tank 1, which is beneficial to improving the fermentation efficiency of wampee.

[0049] Optionally, in some embodiments, a plurality of stirring blades 12 and stirring shaft 11 are arranged at a preset angle. By adopting a certain angle, such as an acute angle of 60 degrees, the stirring range of the yellow peel fragments in the fermentation tank 1 is increased, thereby further improving the fermentation efficiency of yellow peel.

[0050] Please refer to Figure 3 In some embodiments, a temperature detector and a heating tube 14 are installed inside the fermentation tank 1, and a controller and a heater 15 are installed outside the fermentation tank 1. The heater 15, the temperature detector, and the controller are electrically connected, and the heating tube 14 and the heater 15 are electrically connected. That is, in order to maintain the optimal fermentation temperature inside the fermentation tank 1, a temperature detector is installed inside the fermentation tank 1 to monitor the temperature inside the fermentation tank 1 in real time and transmit the temperature data to the controller. The controller then controls the heater 15 to work, thereby causing the heating tube 14 to heat up and increase the temperature inside the fermentation tank 1, so as to maintain the temperature inside the fermentation tank 1 at the optimal temperature, which is beneficial to improving fermentation efficiency and fermentation quality.

[0051] Optionally, in some embodiments, the fermenter 1 is provided with an exhaust port 16, and an exhaust valve is installed at the exhaust port 16. That is, the gas generated during fermentation in the fermenter 1 is discharged through the exhaust port 16 to prevent the internal gas pressure of the fermenter 1 from being too high and causing damage. At the same time, the exhaust valve can be replaced by a pressure relief valve.

[0052] Optionally, in some embodiments, the fermenter 1 is provided with a pH adjustment port 17. That is, by providing a pH adjustment port 17 on the fermenter 1, the user can monitor the pH value of the fruit pulp inside the fermenter 1 through the pH adjustment port 17. Specifically, a portion of the fruit pulp can be taken out with a tool and its pH value can be measured outside the fermenter 1, or the pH value of the fruit pulp inside the fermenter 1 can be measured directly with a pH detector. Then, according to the test results, appropriate adjustment reagents, such as acidic or alkaline regulators, can be added to adjust the acidity or alkalinity of the fermentation liquid to meet the needs of different fermentation processes.

[0053] In the above embodiment, a sealing cap is provided at the pH adjustment port 17, and the sealing cap is sealed to the fermenter 1 by threads, thereby achieving a seal on the pH adjustment port 17.

[0054] Optionally, in some embodiments, the fermenter 1 is provided with a feeding port, and a feeding pipe 18 is installed at the feeding port. An end cap is detachably installed at the end of the feeding pipe 18 away from the fermenter 1. That is, by setting up the feeding pipe 18, it can be used to supplement materials or add other ingredients required for fermentation, such as yeast, sugar, etc., during the fermentation process. The feeding pipe is also provided with an end cap, which is installed on the feeding pipe 18 by thread sealing to prevent outside air and impurities from entering the fermenter 1.

[0055] In the above embodiments, the feeding pipe 18 can adopt a Y-shaped structure, which is beneficial for adding different supplementary materials at the same time.

[0056] In other words, the key point of this utility model is that the destemming box 5, the crushing box 3, and the fermentation tank 1 are installed sequentially from top to bottom, so that the wampee fruit enters the crushing box 3 and the fermentation tank 1 sequentially under gravity. The destemming box 5 is provided with a feed inlet 6 and a slag discharge outlet 8. The destemming box 5 is connected to the crushing box 3. Two destemming rollers 7 with parallel axes and relative rotation are rotatably installed inside the destemming box 5, and a screen 9 is located below the destemming rollers 7. The connection between the destemming box 5 and the crushing box 3 is located below the screen 9. That is to say, the destemming rollers 7 remove the fruit stems from the wampee fruit. After removal, the fruit stems are blocked by the screen 9 and pass through the destemming box. The slag is discharged from the discharge port 8 on the 5th, while the yellow peel enters the crushing box 3 after passing through the screen 9. The crushing box 3 is connected to the fermentation tank 1. Two crushing rollers 4 with parallel axes and relative rotation are installed in the crushing box 3. Under the squeezing and shearing action of the two crushing rollers 4, the peel and pulp of the yellow peel entering the crushing box 3 are crushed into fragments. The crushed yellow peel fragments are pushed into the fermentation tank 1 by the crushing rollers 4, realizing the integrated operation of yellow peel destemming, crushing and fermentation. The whole process reduces the equipment footprint, reduces the risk of pollution during material transfer, and improves fermentation quality and production efficiency.

[0057] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0058] The above provides a detailed description of the integrated device for destemming and fermenting yellow peel provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of this utility model.

Claims

1. A device for integrated destemming and fermentation of wampee, characterized in that, include: Fermentation tank (1), the bottom of which is provided with a drain port (2); Crushing box (3), which is connected to fermentation tank (1), and two crushing rollers (4) with parallel axes and rotating relative to each other are rotatably installed inside the crushing box (3); The destemming box (5) is provided with a feed inlet (6) and a slag discharge outlet (8). The destemming box (5) is connected to the crushing box (3). Two destemming rollers (7) with parallel axes and rotating relative to each other are rotatably installed inside the destemming box (5). A screen (9) is located below the destemming rollers (7) and fixedly installed inside the destemming box (5). The connection between the destemming box (5) and the crushing box (3) is located on the lower side of the screen (9).

2. The integrated device for destemming and fermenting wampee according to claim 1, characterized in that, The destemming roller (7) includes two coaxially arranged turntables (701) and several destemming rods (702) arranged in parallel. The two turntables (701) are located on both sides of the destemming rods (702) and are fixedly connected to the destemming rods (702). The several destemming rods (702) are evenly distributed along the axis of the turntables (701).

3. The integrated device for destemming and fermenting wampee according to claim 2, characterized in that, The destemming box (5) is equipped with a push plate (703), which is located on the upper side of the screen (9) and slides in a direction perpendicular to the slag discharge port (8). The destemming box (5) is equipped with a drive component (704) to control the sliding of the push plate (703).

4. The integrated device for destemming and fermenting yellow peel according to claim 1, characterized in that, A receiving cylinder (10) is provided between the destemming box (5) and the crushing box (3). The upper side of the receiving cylinder (10) is connected to the discharge port of the destemming box (5), and the bottom of the receiving cylinder (10) is connected to the feed port (6) of the crushing box (3).

5. The integrated device for destemming and fermenting yellow peel according to claim 1, characterized in that, A stirring shaft (11) is rotatably installed inside the fermentation tank (1). One end of the stirring shaft (11) extends out of the fermentation tank (1). Several stirring blades (12) are installed on the stirring shaft (11). A rotating component (13) is provided on the fermentation tank (1) to control the rotation of the stirring shaft (11).

6. The integrated device for destemming and fermenting yellow peel according to claim 5, characterized in that, The stirring blades (12) and the stirring shaft (11) are arranged at a predetermined angle.

7. The integrated device for destemming and fermenting yellow peel according to any one of claims 1-6, characterized in that, The fermenter (1) is equipped with a temperature detector and a heating tube (14) inside, and a controller and a heater (15) are installed outside the fermenter (1). The heater (15), the temperature detector and the controller are electrically connected, and the heating tube (14) and the heater (15) are electrically connected.

8. The integrated device for destemming and fermenting yellow peel according to any one of claims 1-6, characterized in that, The fermentation tank (1) is provided with an exhaust port (16), and an exhaust valve is installed at the exhaust port (16).

9. The integrated device for destemming and fermenting yellow peel according to any one of claims 1-6, characterized in that, The fermenter (1) is equipped with a pH adjustment port (17).

10. The integrated device for destemming and fermenting yellow peel according to any one of claims 1-6, characterized in that, The fermentation tank (1) is provided with a feeding port, and a feeding pipe (18) is installed at the feeding port. An end cap is detachably installed at the end of the feeding pipe (18) away from the fermentation tank (1).

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