A fermentation device for preparing soil conditioner using sludge

Abstract

The invention relates to the field of soil conditioner production, and discloses a fermentation device for preparing soil conditioner by using sludge, comprising a fermentation tank, wherein the fermentation tank is composed of a tank body, a tank bottom arranged at the bottom of the tank body, and a tank cover arranged at the top of the tank body, a feed port is provided on the outer surface of the tank body, a feed pipe is extended at the orifice of the feed port, a mounting hole is provided on the tank cover, an inner filter element is extended at the lower orifice of the mounting hole, a plurality of filter holes are arranged in an array on the outer surface of the inner filter element, water and gas in fermentation raw materials can enter the inner filter element, a piston is provided in the inner sleeve of the inner filter element, a linear module for driving the piston to move in the inner filter element is provided on the tank cover, a bottom hole is provided at the bottom of the piston, a connecting pipe is connected to the upper orifice of the bottom hole through a connecting valve, a pump is connected to the end of the connecting pipe, a stirring component is provided in the annular area between the fermentation tank and the inner filter element, and an output component is provided on the tank bottom.

Description

Technical Field

[0001] The invention relates to the field of soil remediation, specifically to the field of soil conditioner production, and in particular to a fermentation device for preparing soil conditioner using sludge. Background Art

[0002] The mining process will cause damage to the ecological environment. Therefore, during the mining process or after the mining is completed, the mining area needs to be restored. Soil remediation is one of the important components of mining environmental remediation. Among them, fermentation is one of the processes for making soil remediation improvers. For example, the Chinese invention patent with application publication number CN111909708A discloses a mining soil remediation agent and its preparation method and application, which utilizes sludge and biological bacteria to ferment to obtain mature sludge, and then mixes the mature sludge with phosphate-solubilizing bacteria in proportion to obtain a remediation agent.

[0003] Sludge fermentation generally adopts a fermentation tank. By injecting sludge and fermentation bacteria into the fermentation tank, and then controlling the temperature, moisture and oxygen content, etc., the fermented product can be obtained after waiting for a preset time. However, in the existing sludge fermentation technology, it is generally necessary to open the tank cover to observe the fermentation progress of the fermentation raw materials and ensure that the various parameters of the fermentation process are within the expected parameter range. Opening the tank cover is not only cumbersome, but also causes the leakage of malodorous gases produced by fermentation. In addition, moisture content and oxygen content are both factors that affect sludge fermentation. How to ensure that the moisture content and oxygen content in the fermentation raw materials are within the preset range and the newly added moisture and gas are quickly and evenly distributed in the fermentation raw materials is an important factor in ensuring the fermentation quality. Based on this, the present invention proposes a fermentation device for preparing a soil conditioner using sludge. Summary of the invention

[0004] In order to solve the problems mentioned in the above background, the present invention provides a fermentation device for preparing a soil conditioner using sludge.

[0005] In order to achieve the above technical objectives, the technical solution adopted by the present invention is as follows.

[0006] A fermentation device for preparing a soil conditioner using sludge comprises a fermentation tank, the fermentation tank comprises a tank body, a tank bottom arranged at the bottom of the tank body and a tank cover arranged at the top of the tank body, a feed port is provided on the outer surface of the tank body, a feed pipe extends from the orifice of the feed port, a mounting hole is provided on the tank cover, an inner filter element extends from the lower orifice of the mounting hole, a plurality of filter holes are arranged in an array on the outer surface of the inner filter element, water and gas in the fermentation raw material can enter the inner filter element, a piston is provided in the inner sleeve of the inner filter element and a linear module for driving the piston to move in the inner filter element is provided on the tank cover, a bottom hole is provided at the bottom of the piston, a connecting pipe is connected to the upper orifice of the bottom hole through a connecting valve, and a pump is connected to the end of the connecting pipe;

[0007] A stirring member is arranged in the annular region between the fermentation tank and the inner filter element.

[0008] As a further improvement and optimization of the present invention, the connecting valve includes a fixed bracket arranged at the bottom of the piston chamber, a core tube is arranged on the fixed bracket, the upper end of the core tube is connected to the connecting tube, the lower end is closed and extends into the bottom hole and is flush with the lower hole opening of the bottom hole, the outer cylindrical surface of the core tube is provided with a core hole located in the bottom hole, a valve tube is sleeved on the outside of the core tube, the outer cylindrical surface of the valve tube is fitted with the hole wall of the bottom hole, the tube wall of the valve tube is fitted with the outer cylindrical surface of the core tube, and a driving member for driving the valve tube to move along the axial centerline is arranged on the fixed bracket.

[0009] As a further improvement and optimization of the present invention, the driving member includes motor three, a power transmission member is arranged between motor three and the valve tube, a follower of the power transmission member is threadedly installed on the outside of the valve tube, a sliding connection is formed between the valve tube and the fixed bracket in the vertical direction, and both end surfaces of the follower are in contact with the fixed bracket.

[0010] As a further improvement and optimization of the present invention, the stirring component includes a ring rail and a synchronous belt which are arranged in the annular area and are in a ring shape, and the vertical center lines of the two coincide. The synchronous belt and the motor 2 arranged on the tank cover form a power connection. A connecting bracket is slidably installed on the ring rail, and the connecting bracket is connected to the synchronous belt. A stirring shaft is vertically installed on the connecting bracket, and blades are arranged on the stirring shaft.

[0011] As a further improvement and optimization of the present invention, four vertically arranged rollers are provided on the connecting bracket, and the four rollers are grouped in pairs to form two groups of roller components. The two rollers in each group of roller components are respectively located on the inner and outer sides of the circular rail, and the straight line connecting the end face centers of the two rollers is named as the connecting line. When the connecting bracket is located on the arc segment of the circular rail, the intersection of the connecting lines in the two groups of roller components is located on the axial center line of the arc segment.

[0012] As a further improvement and optimization of the present invention, a gear ring is further provided in the annular area, the vertical center line of the gear ring coincides with the vertical center line of the synchronous belt, a gear meshing with the gear ring is provided on the connecting bracket, and the gear and the stirring shaft are powered by a power connecting member, and the transmission ratio of the power connecting member is less than one.

[0013] As a further improvement and optimization of the present invention, an output component is arranged on the bottom of the tank, and the output component is used to pull the fermentation raw materials in the bottom of the tank to roll, and after the fermentation is completed, the fermentation raw materials are pulled and output outward.

[0014] As a further improvement and optimization of the present invention, the bottom of the tank is in the shape of an upwardly curved arc surface and connecting holes are provided on both sides of the tank bottom along the axis of the arc surface, a discharge pipe extends from the opening of the connecting hole, an output nozzle is provided on the outer cylindrical surface of the discharge pipe facing downward, an auger is provided in the discharge pipe, the spiral directions of the augers in the two discharge pipes are opposite and the facing ends of the two augers extend into the tank bottom and are coaxially connected, and the input end of the auger is connected to motor 1.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This scheme uses sewage sludge to prepare soil conditioners and then repair the soil. On this basis:

[0017] 1. This solution can sample the fermentation raw materials in the fermentation tank through the output component, and analyze whether the fermentation process needs to be adjusted through sample detection without opening the tank cover, thus solving the problem of cumbersome and foul-smelling gas leakage when opening the tank cover to check the fermentation process;

[0018] 2. This solution can extract water and gas from the fermentation tank or inject water and gas into the fermentation tank through the cooperation of the inner filter element, the piston and the connecting valve, so as to adjust the water content and oxygen content of the fermentation raw materials. During the adjustment process, the water and gas are pressed into the fermentation raw materials by the downward movement of the piston, and the movement and rotation of the stirring blades and the tumbling action of the auger pulling the fermentation raw materials can quickly and evenly mix the water and gas in the fermentation raw materials.

[0019] Furthermore, in this solution, the special structural design of the connecting valve can make the bottom of the piston flat when the connecting valve is closed, so that all the water and gas injected into the inner filter element can be pressed into the fermentation raw material to achieve the purpose of accurate addition;

[0020] 3. In the stirring process of the fermentation raw materials of this scheme, the stirring blades move and rotate, the auger pulls the fermentation raw materials to tumble, and the piston moves up and down to extract water and gas and then presses it back into the fermentation tank. The three cooperate to achieve stirring of the fermentation raw materials, which is more sufficient, and the stirring effect and efficiency are better;

[0021] Furthermore, the movement and rotation of the stirring blade can be achieved by the second motor, which has lower cost and lower energy consumption. In addition, it should be noted that:

[0022] Since the soil conditioner is prepared by sludge (which can be municipal sludge), it is possible that impurities with higher hardness such as stones are mixed in the sludge. During the movement and rotation of the stirring blades, if the movement and rotation of the blades are driven by two power sources respectively, then when encountering stones that hinder the movement of the blades, the blades will continue to rotate, causing damage to the blades. In the present scheme, if an obstacle is encountered, if the hardness of the obstacle is low, the blades will still move normally, and the blades will also rotate normally. If the hardness of the obstacles is high and there are many of them, hindering the movement of the blades, the blades will stop rotating at the same time, that is, the movement of the blades is used to sense whether there are real obstacles in the sludge (referring to obstacles that can affect the movement of the blades, such obstacles are high in hardness and heavy, and the blades will be damaged by impact and collision when rotating), and the rotation is stopped at the first time to avoid damage to the blades. Afterwards, the staff processes the sludge raw materials, such as replacing the sludge or filtering the sludge with stones, etc. This is achievable with the existing technology and will not be elaborated on. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 It is a schematic diagram of the tank bottom and the output component;

[0025] Figure 3 It is a schematic diagram of the tank body, the stirring member and the inner filter element;

[0026] Figure 4 is a schematic diagram of a stirring component and an adjusting component;

[0027] Figure 5 A partial diagram of the stirring component Figure 1 ;

[0028] Figure 6 A partial diagram of the stirring component Figure 2 ;

[0029] Figure 7 is a schematic diagram of a piston, a connecting valve and a connecting pipe;

[0030] Figure 8 for Figure 7 Magnified view of A in .

[0031] The reference numerals in the accompanying drawings are:

[0032] 100, tank body; 101, feed pipe; 102, tank bottom; 103, discharge pipe; 104, auger; 105, motor 1; 106, output nozzle; 200, inner filter element; 201, piston; 202, linear module; 203, core tube; 204, core hole; 205, valve tube; 206, driving part; 300, stirring component; 301, motor 2; 302, ring rail; 303, synchronous belt; 304, gear ring; 305, connecting bracket; 306, stirring component; 307, roller; 308, gear; 309, power connecting part. DETAILED DESCRIPTION

[0033] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0034] Reference Figure 1-Figure 8 A fermentation device for preparing a soil conditioner using sludge includes a fermentation tank, the fermentation tank is composed of a tank body 100, a tank bottom 102 arranged at the bottom of the tank body 100, and a tank cover arranged at the top of the tank body 100, wherein:

[0035] A feed port is provided on the outer surface of the tank body 100, and a feed pipe 101 extends from the orifice of the feed port. A control valve is provided on the feed pipe 101. When the control valve is opened, fermentation raw materials such as sludge and bacteria are injected into the fermentation tank through the feed pipe 101. A stirring component 300 and an adjusting component are provided in the tank body 100. The stirring component 300 is used to stir the fermentation raw materials to mix them evenly, and the adjusting component is used to adjust the moisture content and oxygen content of the fermentation raw materials.

[0036] The tank bottom 102 is provided with an output member for pulling the fermentation raw materials in the tank bottom 102 to roll, and cooperates with the stirring member 300 to make the mixing uniformity of the fermentation raw materials better, and after the fermentation is completed, the fermented sludge is pulled outward.

[0037] Output artifacts:

[0038] Reference Figure 2 The bottom of the tank bottom 102 is in the shape of an upward curved arc surface, and connecting holes are provided on both sides of the tank bottom 102 along the axis of the arc surface. A discharge pipe 103 extends from the mouth of the connecting hole, and an output nozzle 106 is provided on the outer circumferential surface of the discharge pipe 103 facing downward. An auger 104 is provided in the discharge pipe 103, and the auger 104 is driven to rotate by a motor 105.

[0039] The spiral directions of the augers 104 in the two discharge pipes 103 are opposite, and the facing ends of the two augers 104 extend into the tank bottom 102 and are coaxially connected. When the augers 104 rotate, the fermentation raw materials in the tank bottom 102 can be pulled to move to the connection between the two augers 104, and squeezed at the connection, and roll upward under the squeezing action, thereby achieving the purpose of driving the fermentation raw materials in the tank bottom 102 to roll. Conversely, when the augers 104 rotate in the opposite direction, the fermentation raw materials in the fermentation tank can be pulled to move into the discharge pipe 103. The discharge pipe 103 is also provided with a control valve. When the control valve is opened, the fermentation raw materials are finally discharged through the discharge pipe 103. Based on this, after the fermentation is completed, the raw materials in the fermentation tank can be pulled to be discharged outward, or during the fermentation process, samples can be taken through the output component, and the fermentation state of the fermentation raw materials is detected according to the samples to decide whether to adjust the moisture and oxygen content of the fermentation raw materials next.

[0040] Adjustment components:

[0041] Reference Figure 3 and Figure 4 A mounting hole is provided on the tank cover, and the regulating component includes an inner filter element 200 arranged at the lower opening of the mounting hole. A plurality of filter holes are arranged in an array on the outer surface of the inner filter element 200. The moisture and gas in the fermentation raw materials in the fermentation tank can pass through the filter holes and enter the inner filter element 200, while the rest cannot enter the inner filter element 200. Furthermore, a gauze can be provided on the outer surface of the inner filter element 200 to prevent the remaining part of the fermentation raw materials from entering the inner filter element 200 without hindering the moisture and gas from entering the inner filter element 200.

[0042] The inner filter element 200 is provided with a piston 201 and the tank cover is provided with a linear module 202 for driving the piston 201 to move in the inner filter element 200. The linear module 202 can be an existing electric telescopic rod technology or an existing screw linear motion technology, which will not be described in detail.

[0043] Reference Figure 7 and Figure 8 A bottom hole is provided at the bottom of the piston 201, and a connecting pipe is connected to the upper opening of the bottom hole through a connecting valve, and the end of the connecting pipe is connected to the pump.

[0044] During normal fermentation, the bottom of the piston 201 is driven by the linear module 202 to contact the bottom of the inner filter element 200, and the filter holes on the inner filter element 200 are blocked by the piston 201, so that the moisture and gas in the fermentation raw materials will not enter the inner filter element 200;

[0045] When it is necessary to extract and discharge the moisture and gas in the fermentation raw materials, the connecting valve is closed, the piston 201 moves upward, the moisture and gas are extracted into the inner filter element 200, and then the connecting valve is opened, and the moisture and gas in the inner filter element 200 are extracted by the pump. It should be noted that it is possible that the bottom hole on the piston 201 is not in contact with the liquid surface of the water in the inner filter element 200, so the piston 201 can be driven to move downward to make the bottom hole contact with the liquid surface, and then the piston 201 moves downward while pumping water, thereby extracting the water. The amount of moisture and gas extracted can be detected. After the preset amount is extracted, the connecting valve is closed, the piston 201 moves downward, and the remaining moisture and gas in the inner filter element 200 are pressed back into the fermentation raw materials;

[0046] Similarly, when it is necessary to inject water and gas into the fermentation raw materials, the connecting valve is opened, and water and gas are injected into the inner filter element 200 while the piston 201 is moved upward to leave space for the water and gas. After the preset amount of water and gas is injected, the connecting valve is closed and the piston 201 is moved downward to press the water and gas into the fermentation raw materials.

[0047] It should be noted that in the above process, gas refers to air or oxygen. Samples are taken regularly to detect the fermentation status, and a decision is made based on the fermentation status whether to inject water or a preset amount of oxygen into the fermentation tank so that the moisture and oxygen content in the fermentation tank are within the preset range.

[0048] In addition, the gas can also be carbon dioxide, hydrogen, etc. produced by fermentation. Regular sampling is performed to detect the fermentation status. The gas and water produced by fermentation are actively extracted according to the fermentation status, and then a preset amount of water and oxygen are re-injected into the fermentation tank.

[0049] Since water and gas need to be pumped and injected, multiple connecting valves are provided, and connecting pipes on different connecting valves are connected to different pumps.

[0050] In a preferred embodiment, in the existing valve technology, whether it is a plunger valve or a ball valve, there will be some gap dead angles, which will cause the moisture and gas in the inner filter element 200 to not be completely pressed into the fermentation raw material, and some will always remain, which will cause the moisture content and oxygen content in the fermentation raw material to be different from the expected, thereby affecting the fermentation result. Therefore, when the connecting valve is closed, the bottom of the piston 201 is in a flat state, and then when the piston 201 moves downward, the moisture and gas in the inner filter element 200 can be completely pressed into the fermentation raw material. Specifically:

[0051] Reference Figure 8The connecting valve includes a fixed bracket arranged at the bottom of the piston 201 cavity, and a core tube 203 is arranged on the fixed bracket. The upper end of the core tube 203 is connected to the connecting tube, and the lower end is closed and extends into the bottom hole, flush with the lower hole opening of the bottom hole. The outer circumferential surface of the core tube 203 is also provided with a core hole 204 located in the bottom hole. The outer sleeve of the core tube 203 is provided with a valve tube 205, and the outer circumferential surface of the valve tube 205 is in contact with the hole wall of the bottom hole, and the tube wall of the valve tube 205 is in contact with the outer circumferential surface of the core tube 203, that is, the outer diameter of the valve tube 205 is consistent with the hole diameter of the bottom hole, and the inner diameter of the valve tube 205 is consistent with the outer diameter of the core tube 203.

[0052] The fixed bracket is also provided with a driving member 206 for driving the valve tube 205 to move along the axis; the valve tube 205 is driven upward by the driving member 206 to expose the core hole 204, and the connecting valve is opened; the valve tube 205 is driven downward by the driving member 206 to block the core hole 204, and the lower tube mouth end face of the valve tube 205 cooperates with the lower closed end face of the core tube 203 to block the lower orifice of the bottom hole, so that the bottom of the piston 201 is in a flat state, and the connecting valve is closed.

[0053] Furthermore, the driving member 206 may include a motor three, a power transmission member is arranged between the motor three and the valve tube 205, the follower of the power transmission member is threadedly installed on the outside of the valve tube 205, and the valve tube 205 and the fixed bracket form a sliding connection in the vertical direction, which is restricted to movement, and both end surfaces of the follower are in contact with the fixed bracket and are restricted to rotation; the follower is driven to rotate by the motor three, and then the valve tube 205 can be driven to move along the axis, so that the connecting valve is opened or closed.

[0054] Stirring member 300:

[0055] Reference Figure 3-Figure 6 As shown, due to the existence of the inner filter element 200, the area between the fermentation tank and the inner filter element 200 is annular in shape, and the stirring member 300 is arranged in this annular area.

[0056] Reference Figure 5 The stirring member 300 includes a ring rail 302, a synchronous belt 303 and a ring gear 304 which are arranged in the annular area and are in an annular shape. The vertical center lines of the three coincide with each other. The synchronous belt 303 is driven by a motor 301 arranged on the tank cover.

[0057] A connecting bracket 305 is slidably mounted on the ring rail 302. Figure 6Four vertically arranged rollers 307 are provided on the connecting bracket 305. The four rollers 307 are grouped in pairs to form two roller components. The two rollers 307 in each roller component are respectively located on the inner and outer sides of the ring rail 302, and the straight line connecting the end surface centers of the two rollers 307 is named as the connecting line. There is an intersection point between the connecting lines in the two roller components. When the connecting bracket 305 is located on the arc segment of the ring rail 302, the intersection point is located on the axis line of the arc segment, so that the connecting bracket 305 can move on the ring rail 302.

[0058] The connecting bracket 305 is connected to the synchronous belt 303 . When the motor 2 301 drives the synchronous belt 303 to run, the connecting bracket 305 moves along with the synchronous belt 303 .

[0059] Reference Figure 5 and Figure 6 A stirring component 306 is arranged on the connecting bracket 305, including a stirring shaft vertically arranged on the connecting bracket 305 and blades arranged on the stirring shaft.

[0060] A gear 308 meshing with the ring gear 304 is provided on the connecting bracket 305, and the gear 308 and the stirring shaft are connected to each other by a power connecting piece 309. When the connecting bracket 305 moves along with the synchronous belt 303, the gear 308 will rotate, and then the stirring shaft is driven to rotate by the power connecting piece 309. Preferably, the transmission ratio of the power connecting piece 309 is less than one, which increases the speed and can drive the stirring shaft to rotate faster. In addition, the stirring component 300 only needs one motor 2 301 to drive the stirring component 306 to rotate and move, which has lower cost and energy consumption and better stirring effect.

[0061] Preferably, the connecting brackets 305 and the stirring components 306 on the ring rail 302 are provided in several groups.

[0062] Working principle of the present invention:

[0063] Open the control valve, inject sludge, bacteria and other fermentation raw materials into the fermentation tank through the feed pipe 101, then the motor 2 301 is operated to drive the stirring member 306 to move and rotate in the annular area of ​​the fermentation tank, and at the same time, the motor 1 105 is operated to drive the auger 104 to rotate, so that the fermentation raw materials at the bottom of the tank 102 are tumbled, and the tumbling and moving rotation are used together to stir the fermentation raw materials, and the stirring effect is better;

[0064] In the subsequent fermentation process, the components can be output for sampling, and the moisture content, oxygen content, etc. of the fermentation raw materials can be detected based on the samples, and water and oxygen can be added or drainage and exhaust can be performed based on the test results;

[0065] Water and oxygen replenishment process: the connection valve is opened, and water and gas are injected into the inner filter element 200 while the piston 201 is moved upward to leave space for the water and gas. After the preset amount of water and gas is injected, the connection valve is closed, and the piston 201 is moved downward to press the water and gas into the fermentation raw material. At this time, through the cooperation of tumbling, moving rotation and pressing, the water and gas are quickly and evenly mixed in the fermentation raw material;

[0066] Drainage and exhaust process: the connecting valve is closed, the piston 201 moves upward, the moisture and gas are pumped into the inner filter element 200, and then the connecting valve is opened, and the moisture and gas in the inner filter element 200 are pumped away by the pump. After the preset amount is pumped away, the connecting valve is closed, the piston 201 moves downward, and the remaining moisture and gas in the inner filter element 200 are pressed back into the fermentation raw materials.

[0067] In the preferred process, when the fermentation raw materials are stirred, the piston 201 can also be moved up and down to extract water and gas into the inner filter element and then pressed back into the fermentation tank. This can improve the stirring effect and enable the fermentation raw materials to be evenly mixed faster.

[0068] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A fermentation device for preparing a soil conditioner using sludge, comprising a fermentation tank, the fermentation tank comprising a tank body (100), a tank bottom (102) arranged at the bottom of the tank body (100), and a tank cover arranged at the top of the tank body (100), a feed port is provided on the outer surface of the tank body (100), a feed pipe (101) extends from the orifice of the feed port, and the characteristics are as follows: The tank cover is provided with a mounting hole, an inner filter element (200) extends from the lower opening of the mounting hole, a plurality of filter holes are arranged in an array on the outer surface of the inner filter element (200), water and gas in the fermentation raw material can enter the inner filter element (200), a piston (201) is sleeved inside the inner filter element (200), and a linear module (202) for driving the piston (201) to move in the inner filter element (200) is arranged on the tank cover, a bottom hole is arranged at the bottom of the piston (201), a connecting pipe is connected to the upper opening of the bottom hole through a connecting valve, and a pump is connected to the end of the connecting pipe; A stirring member (300) is provided in the annular region between the fermentation tank and the inner filter element (200); The connecting valve comprises a fixed support arranged at the bottom of the piston (201) cavity, a core tube (203) is arranged on the fixed support, the upper end of the core tube (203) is connected to the connecting tube, the lower end is closed and extends into the bottom hole and is flush with the lower hole opening of the bottom hole, the outer circumferential surface of the core tube (203) is provided with a core hole (204) located in the bottom hole, the outer sleeve of the core tube (203) is provided with a valve tube (205), the outer circumferential surface of the valve tube (205) is in contact with the hole wall of the bottom hole, the tube wall of the valve tube (205) is in contact with the outer circumferential surface of the core tube (203), and a driving member (206) for driving the valve tube (205) to move along the axis is arranged on the fixed support; The driving member (206) comprises a motor 3, a power transmission member is arranged between the motor 3 and the valve tube (205), a driven member of the power transmission member is threadedly mounted on the outside of the valve tube (205), a sliding connection is formed between the valve tube (205) and the fixed bracket in the vertical direction, and both end surfaces of the driven member are in contact with the fixed bracket; The stirring member (300) comprises a ring rail (302) and a synchronous belt (303) which are arranged in a ring area and are in a ring shape, and the vertical center lines of the two coincide with each other, the synchronous belt (303) and the second motor (301) arranged on the tank cover form a power connection, a connecting bracket (305) is slidably mounted on the ring rail (302), the connecting bracket (305) is connected to the synchronous belt (303), a stirring shaft is vertically mounted on the connecting bracket (305), and a blade is arranged on the stirring shaft; The connecting bracket (305) is provided with four rollers (307) arranged vertically, and the four rollers (307) are grouped in pairs to form two groups of roller components. The two rollers (307) in each group of roller components are respectively located on the inner and outer sides of the ring track (302), and the straight line where the end surface center line of the two rollers (307) is located is named as the connecting line. When the connecting bracket (305) is located on the arc segment of the ring track (302), the intersection point of the connecting lines in the two groups of roller components is located on the axis line of the arc segment. A gear ring (304) is also provided in the annular region, the vertical center line of the gear ring (304) coincides with the vertical center line of the synchronous belt (303), a gear (308) meshing with the gear ring (304) is provided on the connecting bracket (305), and a power connection is achieved between the gear (308) and the stirring shaft via a power connecting member (309), and the transmission ratio of the power connecting member (309) is less than one; An output member is provided on the tank bottom (102), and the output member is used to pull the fermentation raw materials in the tank bottom (102) to roll, and after the fermentation is completed, pull the fermented fermentation raw materials to output outside; The bottom of the tank bottom (102) is in the shape of an upwardly curved arc surface, and the tank bottom (102) is provided with connecting holes on both sides along the axis of the arc surface, and a discharge pipe (103) extends from the opening of the connecting hole, and an output nozzle (106) is provided on the outer circumferential surface of the discharge pipe (103) facing downward, and an auger (104) is provided in the discharge pipe (103), and the spiral directions of the auger (104) in the two discharge pipes (103) are opposite, and the facing ends of the two auger (104) extend into the tank bottom (102) and are coaxially connected, and the input end of the auger (104) is connected to a motor 1 (105).

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