Soilless culture substrate fermentation device

Abstract

The utility model relates to the technical field of soilless culture, in particular to a soilless culture substrate fermentation device, which is characterized in that raw materials of all culture substrates are stirred through a rolling fermentation box, so that the stirring uniformity of the raw materials of the culture substrates is improved; comprising a rack, a fermentation box and a box door, the two ends of the fermentation box are rotationally installed on the rack through the shaft pipes respectively, the inner shaft pipes penetrate through the fermentation cavity of the fermentation box and the shaft pipes at the two ends and are rotationally connected with the fermentation box, the driving mechanism is installed on the rack, and the driving mechanism drives the fermentation box and the inner shaft pipes to rotate relatively. A plurality of stirring pipes are installed on the outer wall of the middle of the inner shaft pipe and located in a fermentation chamber of the fermentation box, one end of a liquid supplementing pipe is installed in the inner shaft pipe, a plurality of spray heads are installed at the output end of the liquid supplementing pipe and penetrate through the outer wall of the inner shaft pipe to stretch into the fermentation chamber of the fermentation box, and the other end of the liquid supplementing pipe stretches out of the inner shaft pipe.

Description

Technical Field

[0001] This utility model relates to the technical field of soilless cultivation, and in particular to a soilless cultivation substrate fermentation device. Background Technology

[0002] The main raw materials for hydroponics substrates include peat moss, wood ash, vinegar residue, cassava residue, traditional Chinese medicine residue, mushroom residue, reed powder, crop straw powder, and animal manure. Most of these raw materials cannot be directly used as substrates for crop cultivation and need to be fermented and decomposed to a certain degree before they can be used. Chinese utility model patent CN214676917U discloses a fermentation device for a hydroponics substrate. This device includes a base plate, a fixed plate fixedly connected to the right side of the top of the base plate, a fermentation chamber mounted on top of the fixed plate, a vertical plate fixedly connected to the left side of the top of the base plate, a cylinder mounted at the bottom right side of the vertical plate, a movable block movably connected to the right side of the cylinder, and a sliding rod fixedly connected to the top of the vertical plate, with a sliding sleeve slidably connected to the surface of the sliding rod. This utility model, through the cooperation of a fixed plate, fermentation box, arc-shaped groove, connecting block, vertical plate, cylinder, movable block, slide rod, sliding sleeve, movable seat, forward and reverse motor, telescopic rod, connecting rod, stirring shaft, heating tube, stirring blade, temperature sensor, feed port, discharge pipe and PLC controller, facilitates temperature control and improves work efficiency.

[0003] The fermentation chamber of the above-mentioned fermentation device can move back and forth, but the range of movement of the fermentation chamber is small, and the shaking and turning effect on the cultivation substrate is limited. As a result, the cultivation substrate at the corners of the fermentation chamber will not be shaken down. When the stirring blade rotates to stir the cultivation substrate, the cultivation substrate at the corners of the fermentation chamber is not easily stirred, resulting in poor uniformity of the cultivation substrate. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a soilless cultivation substrate fermentation device that improves the uniformity of mixing of cultivation substrate raw materials by using a rotating fermentation box to ensure that all raw materials of the cultivation substrate are stirred.

[0005] This utility model discloses a soilless cultivation substrate fermentation device, comprising a frame, a fermentation box, and a door. The fermentation box has an internal fermentation chamber, and an access port is located on its side wall. The door is hinged to the access port, closing it. It also includes an inner shaft tube, multiple stirring tubes, a replenishment tube, nozzles, and a drive mechanism. Both ends of the fermentation box are rotatably mounted on the frame via the shaft tubes. The fermentation box is horizontally arranged. The inner shaft tube passes through the fermentation chamber and both ends of the fermentation box, and is rotatably connected to the fermentation box. The drive mechanism is mounted on the frame and drives the fermentation box and the inner shaft tube to rotate relative to each other. Multiple stirring tubes are installed on the outer wall of the middle section of the inner shaft tube, all located within the fermentation chamber. One end of the replenishment tube is installed inside the inner shaft tube, and multiple nozzles are installed at its output end. These nozzles extend through the outer wall of the inner shaft tube into the fermentation chamber, while the other end of the replenishment tube extends outside the inner shaft tube. During operation, the door is opened, and the raw materials of the hydroponic substrate mixed with fermentation inoculum are put into the fermentation chamber through the inlet / outlet of the fermentation box. The door is then closed, and the drive mechanism drives the fermentation box and the inner shaft tube to rotate relative to each other. As the fermentation box rotates, the raw materials tumble up and down. The inner shaft tube drives multiple stirring tubes to rotate relative to the fermentation box, thereby stirring the tumbling raw materials. During fermentation, the drive mechanism is paused, and the external nutrient solution delivery system is connected to the replenishment pipe, so that the nutrient solution is input into the raw materials in the fermentation chamber of the fermentation box through the replenishment pipe and multiple nozzles. The drive mechanism is restarted, so that the nutrient solution and raw materials are fully mixed and fermentation continues. Compared with existing technologies, the fermentation box rotates 360 degrees, which has a stronger shaking and turning effect on the raw materials of the cultivation substrate, causing all raw materials in the fermentation box to participate in the tumbling, thereby ensuring that all raw materials of the cultivation substrate are stirred and improving the uniformity of the mixing of the raw materials of the cultivation substrate.

[0006] Preferably, the drive mechanism includes bevel gear one, bevel gear two, a motor, and bevel gear three. The motor is mounted on the frame, and bevel gear three is concentrically mounted on the output shaft of the motor. Bevel gear one is concentrically mounted on the shaft tube of the fermentation tank, and bevel gear two is concentrically mounted on the outer wall of the inner shaft tube. Bevel gear three meshes with bevel gear one and bevel gear two simultaneously. The motor drives bevel gear three to rotate, and bevel gear three meshes with bevel gear one to drive the fermentation tank to rotate in the forward direction. At the same time, bevel gear three meshes with bevel gear two to drive the inner shaft tube to rotate in the reverse direction. The structure is simple and the driving effect is good.

[0007] Preferably, the multiple stirring tubes are hollow tubes, and the multiple stirring tubes are connected to the interior of the inner shaft tube. Each of the multiple stirring tubes is provided with a vent hole, which is connected to its internal hollow part. The waste gas generated during the fermentation of the raw materials of the culture medium is collected in the fermentation chamber of the fermentation box, and enters the hollow channel of the multiple stirring tubes through the vent holes on the multiple stirring tubes, and is discharged to the outside of the fermentation box through the port of the inner shaft tube, so that the fermentation of the raw materials proceeds stably.

[0008] Preferably, the assembly also includes a piston, a pull rod, and a sliding sleeve. The piston is slidably mounted inside one end of the inner shaft tube, making slidable contact with the inner wall of the inner shaft tube. A one-way valve is provided on the piston. The inner end of the pull rod is connected to the piston, and the outer end of the pull rod extends out of the inner shaft tube. The pull rod is slidably connected to the sliding sleeve, which is mounted on the frame. The pull rod is driven to reciprocate, and the sliding sleeve guides the pull rod. When the piston slides towards the inner side of the inner shaft tube, the one-way valve of the piston opens, allowing the exhaust gas inside the inner shaft tube to be discharged to the outside of the piston. When the piston slides towards the outside of the inner shaft tube, the one-way valve of the piston closes, causing the piston to push the exhaust gas towards the outside of the inner shaft tube, achieving an active extraction effect and improving the exhaust gas discharge efficiency.

[0009] Preferably, it also includes bevel gear four, bevel gear five, and a connecting rod. Bevel gear four is concentrically mounted on the end of the inner shaft tube, and bevel gear five is rotatably mounted on the frame. Bevel gear five meshes with bevel gear four. A drive shaft is eccentrically mounted on the end face of bevel gear five. One end of the connecting rod is rotatably connected to the drive shaft of bevel gear five, and the other end of the connecting rod is rotatably connected to the pull rod. When the inner shaft tube rotates, the inner shaft tube drives bevel gear four to rotate. Bevel gear four meshes with and drives bevel gear five to rotate. Bevel gear five pulls the connecting rod to reciprocate through the drive shaft, thereby causing the connecting rod to pull the pull rod to reciprocate, thus driving the piston. It has good practicality.

[0010] Preferably, it also includes an air supply pipe and multiple air outlets. One end of the air supply pipe is installed inside the inner shaft tube, and multiple air outlets are installed on the air supply pipe. The multiple air outlets extend through the side wall of the inner shaft tube into the fermentation chamber of the fermentation box. When aerobic fermentation is carried out, air is supplied to the fermentation chamber of the fermentation box through the air supply pipe and multiple air outlets to increase the oxygen content of the raw materials of the culture medium and improve the fermentation efficiency.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: During operation, the door is opened, and the raw materials of the hydroponics substrate mixed with fermentation bacteria are put into the fermentation chamber through the inlet of the fermentation box. The door is closed, and the drive mechanism drives the fermentation box and the inner shaft tube to rotate relative to each other. When the fermentation box rotates, it causes the raw materials to tumble up and down. The inner shaft tube drives multiple stirring tubes to rotate relative to the fermentation box, so that the multiple stirring tubes stir the tumbling raw materials. During the fermentation process, the drive mechanism is paused, and the external nutrient solution delivery system is connected to the replenishment pipe, so that the nutrient solution is input into the raw materials in the fermentation chamber of the fermentation box through the replenishment pipe and multiple nozzles. The drive mechanism is restarted, so that the nutrient solution and raw materials are fully mixed and fermentation continues. Compared with the prior art, the fermentation box rotates 360 degrees, which has a stronger shaking and turning effect on the raw materials of the cultivation substrate, causing all the raw materials in the fermentation box to participate in the tumbling, thereby making all the raw materials of the cultivation substrate stirred and improving the uniformity of the mixing of the raw materials of the cultivation substrate. Attached Figure Description

[0012] Figure 1This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a front sectional view of the present invention;

[0014] Figure 3 This is a structural schematic diagram of the box door in the closed state of this utility model;

[0015] Figure 4 It is a structural diagram of the inner shaft tube, stirring tube, liquid replenishment tube, nozzle, air replenishment tube and air outlet, etc.

[0016] Figure 5 It is a structural diagram of the piston, connecting rod, sliding sleeve, bevel gear, and connecting rod.

[0017] The following components are labeled in the attached diagram: 1. Frame; 2. Fermentation chamber; 3. Chamber door; 4. Inner shaft tube; 5. Stirring tube; 6. Liquid replenishment tube; 7. Nozzle; 8. Bevel gear one; 9. Bevel gear two; 10. Motor; 11. Bevel gear three; 12. Piston; 13. Tie rod; 14. Sliding sleeve; 15. Bevel gear four; 16. Bevel gear five; 17. Connecting rod; 18. Air replenishment tube; 19. Air outlet. Detailed Implementation

[0018] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0019] Example 1

[0020] like Figures 1 to 4As shown, the hydroponics substrate fermentation device includes a frame 1, a fermentation box 2, and a door 3. The fermentation box 2 has an internal fermentation chamber, and an access port is located on its side wall. The door 3 is hinged to the access port, closing it. It also includes an inner shaft tube 4, multiple stirring tubes 5, a replenishment tube 6, a nozzle 7, and a drive mechanism. Both ends of the fermentation box 2 are rotatably mounted on the frame 1 via the shaft tube. The fermentation box 2 is horizontally arranged. The inner shaft tube 4 passes through the fermentation chamber and both ends of the fermentation box 2, and is rotatably connected to the fermentation box 2. The drive mechanism is mounted on the frame 1 and drives the fermentation box 2 and the inner shaft tube 4 to rotate relative to each other. Multiple nozzles are mounted on the outer wall of the middle section of the inner shaft tube 4. A stirring tube 5 is located in the fermentation chamber of the fermentation box 2. One end of the replenishment tube 6 is installed inside the inner shaft tube 4. Multiple nozzles 7 are installed at the output end of the replenishment tube 6. The multiple nozzles 7 extend through the outer wall of the inner shaft tube 4 into the fermentation chamber of the fermentation box 2. The other end of the replenishment tube 6 extends out of the outer side of the inner shaft tube 4. The drive mechanism includes a first bevel gear 8, a second bevel gear 9, a motor 10, and a third bevel gear 11. The motor 10 is mounted on the frame 1. The output shaft of the motor 10 is concentrically mounted with the third bevel gear 11. The first bevel gear 8 is concentrically mounted on the shaft tube of the fermentation box 2. The second bevel gear 9 is concentrically mounted on the outer wall of the inner shaft tube 4. The third bevel gear 11 meshes with the first bevel gear 8 and the second bevel gear 9 simultaneously.

[0021] During operation, the door 3 is opened, and the raw materials of the hydroponics substrate mixed with fermentation inoculum are put into the fermentation chamber through the inlet / outlet of the fermentation box 2. The door 3 is then closed. The motor 10 drives the bevel gear 3 11 to rotate. The bevel gear 3 11 meshes with the bevel gear 1 8 to drive the fermentation box 2 to rotate forward. At the same time, the bevel gear 3 11 meshes with the bevel gear 2 9 to drive the inner shaft tube 4 to rotate in the opposite direction, so that the fermentation box 2 and the inner shaft tube 4 rotate relative to each other. When the fermentation box 2 rotates, it causes the raw materials to tumble up and down. The inner shaft tube 4 drives multiple stirring tubes 5 to rotate relative to the fermentation box 2, thereby agitating the tumbling raw materials. During fermentation, the motor 10 is paused, and the external nutrient solution delivery system is connected to the replenishment pipe 6. This allows the nutrient solution to be input into the raw materials in the fermentation chamber of the fermentation box 2 through the replenishment pipe 6 and multiple nozzles 7. The motor 10 is then restarted to fully mix the nutrient solution with the raw materials and continue fermentation. Compared with existing technologies, the fermentation box 2 rotates 360 degrees, resulting in a stronger shaking and turning effect on the raw materials of the cultivation substrate. This causes all raw materials in the fermentation box to participate in the tumbling, thereby ensuring that all raw materials of the cultivation substrate are stirred and improving the uniformity of the mixing of the cultivation substrate raw materials.

[0022] Example 2

[0023] like Figure 1 , Figure 2 and Figure 4As shown, based on Example 1, multiple stirring tubes 5 are hollow tubular, and are connected to the inner shaft tube 4. Each stirring tube 5 has a vent hole that communicates with its internal hollow portion. The system also includes a piston 12, a pull rod 13, and a sliding sleeve 14. The piston 12 is slidably mounted inside one end of the inner shaft tube 4, and slides in contact with the inner wall of the inner shaft tube 4. A one-way valve is provided on the piston 12. The inner end of the pull rod 13 is connected to the piston 12, and the outer end of the pull rod 13 extends out of the inner shaft tube 4. The external part includes a pull rod 13 slidably connected to a sliding sleeve 14, which is mounted on the frame 1; it also includes a bevel gear 4 15, a bevel gear 5 16 and a connecting rod 17. The bevel gear 4 15 is concentrically mounted on the end of the inner shaft tube 4, and the bevel gear 5 16 is rotatably mounted on the frame 1. The bevel gear 5 16 meshes with the bevel gear 4 15. A drive shaft is eccentrically mounted on the end face of the bevel gear 5 16. One end of the connecting rod 17 is rotatably connected to the drive shaft of the bevel gear 5 16, and the other end of the connecting rod 17 is rotatably connected to the pull rod 13.

[0024] Waste gas generated during the fermentation of the raw materials of the culture medium accumulates in the fermentation chamber of the fermentation tank 2 and enters the inner shaft tube 4 through the vent holes on the multiple stirring tubes 5. When the inner shaft tube 4 rotates, it drives the bevel gear 4 15 to rotate. The bevel gear 4 15 meshes and drives the bevel gear 5 16 to rotate. The bevel gear 5 16 pulls the connecting rod 17 to move back and forth through the drive shaft, thereby causing the connecting rod 17 to pull the pull rod 13 to move back and forth, thus driving the piston 12. The sliding sleeve 14 slides and guides the pull rod 13. When the piston 12 slides to the inside of the inner shaft tube 4, the one-way valve of the piston 12 opens, allowing the waste gas inside the inner shaft tube 4 to be discharged to the outside of the piston 12. When the piston 12 slides to the outside of the inner shaft tube 4, the one-way valve of the piston 12 closes, allowing the piston 12 to push the waste gas to the outside of the inner shaft tube 4, achieving an active gas extraction effect and ensuring stable fermentation of the raw materials.

[0025] Example 3

[0026] like Figures 1 to 4 As shown, based on Example 1, it also includes an air supply pipe 18 and multiple air outlets 19. One end of the air supply pipe 18 is installed inside the inner shaft tube 4, and multiple air outlets 19 are installed on the air supply pipe 18. The multiple air outlets 19 extend through the side wall of the inner shaft tube 4 into the fermentation chamber of the fermentation box 2. When aerobic fermentation is carried out, air is supplied to the fermentation chamber of the fermentation box 2 through the air supply pipe 18 and multiple air outlets 19 to increase the oxygen content of the raw materials of the culture medium and improve the fermentation efficiency.

[0027] like Figures 1 to 5As shown, the soilless cultivation substrate fermentation device of this utility model, when in operation, firstly, the door 3 is opened, and the raw materials of the soilless cultivation substrate mixed with fermentation inoculum are put into the fermentation chamber through the inlet / outlet of the fermentation box 2. The door 3 is then closed, and the motor 10 drives the bevel gear 3 11 to rotate. The bevel gear 3 11 meshes with the bevel gear 1 8 to drive the fermentation box 2 to rotate forward. At the same time, the bevel gear 3 11 meshes with the bevel gear 2 9 to drive the inner shaft tube 4 to rotate in the reverse direction. Then, when the fermentation box 2 rotates, it causes the raw materials to tumble up and down. The inner shaft tube 4 drives multiple stirring tubes 5 to rotate relative to the fermentation box 2, thereby stirring the tumbling raw materials. During the fermentation process, the motor 10 is paused, and the external nutrient solution delivery system is connected to the replenishment pipe 6, so that the nutrient solution is input into the raw materials in the fermentation chamber of the fermentation box 2 through the replenishment pipe 6 and multiple nozzles 7. 10. Restart the process to fully mix the nutrient solution and raw materials and continue fermentation. Then, when the inner shaft tube 4 rotates, it drives the bevel gear 4 15 to rotate. The bevel gear 4 15 meshes and drives the bevel gear 5 16 to rotate. The bevel gear 5 16 pulls the connecting rod 17 to move back and forth through the drive shaft, thereby causing the connecting rod 17 to pull the pull rod 13 to move back and forth. The pull rod 13 drives the piston 12 to slide back and forth. When the piston 12 slides to the inside of the inner shaft tube 4, the one-way valve of the piston 12 opens, allowing the exhaust gas inside the inner shaft tube 4 to be discharged to the outside of the piston 12. When the piston 12 slides to the outside of the inner shaft tube 4, the one-way valve of the piston 12 closes, allowing the piston 12 to push the exhaust gas to the outside of the inner shaft tube 4, achieving an active gas extraction effect. Finally, when fermentation is complete, rotate the opening of the fermentation box 2 to face backward, open the box door 3, and discharge the cultivation substrate.

[0028] The main functions achieved by this utility model are:

[0029] 1. The rotating fermentation chamber ensures that all raw materials of the cultivation substrate are stirred, improving the uniformity of the mixing of the cultivation substrate raw materials;

[0030] 2. It can discharge fermentation waste gas and improve fermentation efficiency;

[0031] 3. It can replenish nutrient solution and oxygen, thus improving fermentation efficiency.

[0032] The soilless cultivation substrate fermentation device of this utility model uses common mechanical methods for installation, connection, or setting. Any method that can achieve its beneficial effects can be implemented. The fermentation box 2, box door 3, liquid replenishment pipe 6, nozzle 7, bevel gear 1 8, bevel gear 2 9, motor 10, bevel gear 3 11, piston 12, sliding sleeve 14, bevel gear 4 15, bevel gear 5 16, air replenishment pipe 18, and air outlet 19 of this utility model are purchased from the market. Technical personnel in this industry only need to install and operate it according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0033] All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0034] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A soilless cultivation substrate fermentation device, comprising a frame (1), a fermentation box (2), and a door (3), wherein the fermentation box (2) is provided with a fermentation chamber inside, and an access port is provided on the side wall of the fermentation box (2), and the door (3) is hinged to the access port of the fermentation box (2), and the door (3) closes the access port; characterized in that, It also includes an inner shaft tube (4), multiple stirring tubes (5), a replenishing tube (6), a nozzle (7) and a drive mechanism. The two ends of the fermentation box (2) are respectively rotatably mounted on the frame (1) through the shaft tube. The fermentation box (2) is arranged horizontally. The inner shaft tube (4) passes through the fermentation chamber of the fermentation box (2) and the shaft tubes at both ends. The inner shaft tube (4) is rotatably connected to the fermentation box (2). The drive mechanism is mounted on the frame (1). The drive mechanism drives the fermentation box (2) and the inner shaft tube (4) to rotate relative to each other. Multiple stirring tubes (5) are installed on the outer wall of the middle part of the inner shaft tube (4). The multiple stirring tubes (5) are all located in the fermentation chamber of the fermentation box (2). One end of the replenishing tube (6) is installed inside the inner shaft tube (4). Multiple nozzles (7) are installed at the output end of the replenishing tube (6). The multiple nozzles (7) pass through the outer wall of the inner shaft tube (4) and extend into the fermentation chamber of the fermentation box (2). The other end of the replenishing tube (6) extends out of the outside of the inner shaft tube (4).

2. The soilless cultivation substrate fermentation device as described in claim 1, characterized in that, The drive mechanism includes bevel gear 1 (8), bevel gear 2 (9), motor (10) and bevel gear 3 (11). Motor (10) is mounted on frame (1). Bevel gear 3 (11) is concentrically mounted on the output shaft of motor (10). Bevel gear 1 (8) is concentrically mounted on the shaft tube of fermentation tank (2). Bevel gear 2 (9) is concentrically mounted on the outer wall of inner shaft tube (4). Bevel gear 3 (11) meshes with bevel gear 1 (8) and bevel gear 2 (9) simultaneously.

3. The soilless cultivation substrate fermentation device as described in claim 1, characterized in that, Multiple stirring tubes (5) are hollow tubes, and multiple stirring tubes (5) are connected to the interior of the inner shaft tube (4). Each stirring tube (5) is provided with a vent hole, and the vent hole is connected to its internal hollow part.

4. The soilless cultivation substrate fermentation device as described in claim 2, characterized in that, It also includes a piston (12), a pull rod (13) and a sliding sleeve (14). The piston (12) is slidably installed inside one end of the inner shaft tube (4). The piston (12) is in sliding contact with the inner wall of the inner shaft tube (4). A one-way valve is provided on the piston (12). The inner end of the pull rod (13) is connected to the piston (12). The outer end of the pull rod (13) extends out of the outer side of the inner shaft tube (4). The pull rod (13) is slidably connected to the sliding sleeve (14). The sliding sleeve (14) is installed on the frame (1).

5. The soilless cultivation substrate fermentation device as described in claim 4, characterized in that, It also includes bevel gear four (15), bevel gear five (16) and connecting rod (17). Bevel gear four (15) is concentrically mounted on the end of the inner shaft tube (4). Bevel gear five (16) is rotatably mounted on the frame (1). Bevel gear five (16) meshes with bevel gear four (15). A drive shaft is eccentrically mounted on the end face of bevel gear five (16). One end of connecting rod (17) is rotatably connected to the drive shaft of bevel gear five (16). The other end of connecting rod (17) is rotatably connected to pull rod (13).

6. The soilless cultivation substrate fermentation device as described in claim 1, characterized in that, It also includes an air supply pipe (18) and multiple air outlets (19). One end of the air supply pipe (18) is installed inside the inner shaft tube (4). Multiple air outlets (19) are installed on the air supply pipe (18). The multiple air outlets (19) pass through the side wall of the inner shaft tube (4) and extend into the fermentation chamber of the fermentation box (2).

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