Automatic mixing and batching device for producing organic fertilizer

Abstract

The present invention relates to the technical field of mixed ingredients, and specifically discloses an automatic mixing and batching device for producing organic fertilizer, comprising a frame base with a mixing tank rotatably provided on the upper part, the mixing tank comprising a tank body and a mixing mechanism arranged inside the tank body, a blocking plate rotatably connected to the upper part of the tank body, a driving motor is installed on the upper part of the blocking plate, and the output end of the driving motor is connected to the mixing mechanism through a rotating shaft penetrating the blocking plate; a first transmission gear set is also provided between the bottom of the tank body and the frame base, the first transmission gear set is connected to the mixing mechanism through a connecting shaft, the driving motor drives the mixing mechanism to rotate inside the tank body through the rotating shaft at the output end, and at the same time uses the connecting shaft as the power input of the first transmission gear set, so that the first transmission gear set drives the tank body to rotate in the opposite direction along the mixing mechanism; in the process of organic fertilizer batching, the effects of efficient mixing and uniform batching of organic fertilizers are achieved, and the use effect of the batching device is improved.

Description

Technical Field

[0001] The invention relates to the technical field of mixed ingredients, and in particular discloses an automatic mixed ingredient device for producing organic fertilizer. Background Art

[0002] In the production of organic fertilizers, mixing ingredients is the core link to ensure product quality. Since the raw materials include livestock and poultry manure, straw, microbial agents and other components, their physical state (particle size, moisture content, viscosity) and chemical properties (nutrient content, organic matter ratio) vary significantly. Therefore, during the production process, mixing is necessary to achieve balanced nutrient distribution, optimize the physical state of the materials (moisture content, porosity, etc.), and promote chemical reactions between the raw materials and contact with microorganisms, thus creating conditions for the subsequent fermentation of organic fertilizers and shortening the cycle.

[0003] Current mixing and batching technologies mainly use stirring mixers (such as single / double-shaft paddle mixers), which mainly use the stirring shaft to drive the paddles to rotate to achieve material mixing. Although the structure is simple, it relies on the rotation of a single stirring component and still has the following defects in practical application:

[0004] The stirring motion mode is single and can only achieve flat flipping stirring. It is difficult to flip and stir the organic fertilizer materials at different heights inside the tank, which leads to the formation of mixing dead corners in the tank. The uneven distribution of shear force leads to poor mixing effect of materials with large differences in fibrous or granular properties, and is prone to compaction. At the same time, in order to improve the mixing uniformity, independent power systems are often used and rely on high-speed stirring, which increases energy consumption and equipment load. Excessive shear force can easily destroy the activity of microbial agents, thereby affecting the subsequent production quality of organic fertilizers. Summary of the Invention

[0005] The present invention aims to provide an automatic mixing and batching device for producing organic fertilizer, so as to solve the technical problems in the prior art of insufficient mixing efficiency of organic fertilizer, the existence of mixing dead corners, easy occurrence of compaction phenomenon, and excessive shear force that easily destroys the activity of microbial inoculants, thereby affecting the subsequent production quality of organic fertilizer.

[0006] Specifically, the present invention is achieved through the following technical solutions:

[0007] An automatic mixing and batching device for producing organic fertilizer comprises a frame base with a mixing tank rotatably mounted on the upper portion thereof, the mixing tank comprising a tank body and a mixing mechanism disposed within the tank body, a blocking plate rotatably connected to the upper portion of the tank body, a drive motor mounted on the upper portion of the blocking plate, and an output end of the drive motor connected to the mixing mechanism via a rotating shaft penetrating the blocking plate;

[0008] A first transmission gear set is further provided between the bottom of the tank body and the frame base. The first transmission gear set is connected to the mixing mechanism via a connecting shaft. The driving motor drives the mixing mechanism to rotate inside the tank body via the rotating shaft at the output end. At the same time, the driving motor uses the connecting shaft as the power input of the first transmission gear set, so that the first transmission gear set drives the tank body to rotate in the opposite direction along the mixing mechanism.

[0009] The mixing mechanism includes a mixing frame, the top of the mixing frame is connected to the rotating shaft, and the bottom is connected to the connecting shaft. A stirring piece is connected to the middle of the mixing frame. A turning auger rotatably connected to the mixing frame is provided around the stirring piece. A first gear plate is provided on the top of the turning auger, and a gear groove meshing with the first gear plate is provided on the inner wall of the tank body at a position corresponding to the first gear plate.

[0010] In this solution, while the driving motor drives the mixing frame and the stirring element to rotate via the rotating shaft, the first transmission gear set can also transmit the rotational power to the tank body to make the tank body rotate in the opposite direction, thereby achieving a single driving source without relying on the high-speed stirring of the motor, and making the mixing mechanism faster with reference to the tank body. Under the drive of a lower motor speed, the organic fertilizer can also achieve a high mixing efficiency, thereby reducing the energy consumption of the motor to a certain extent, and avoiding the damage to the activity of the microbial agent in the organic fertilizer material caused by the excessive shear force of the single high-speed stirring of the motor. At the same time, when the mixing frame revolves under the drive of the rotating shaft, the first gear plate on the top of the turning auger and the gear groove on the inner wall of the tank body will continue to The meshing enables the turning auger to rotate around its own axis, so that the turning auger can simultaneously have two motion states: revolving with the mixing frame and rotating about its own axis, so that the turning auger can simultaneously perform spiral propulsion on the revolution trajectory, thereby producing a bottom-up lifting effect on the organic fertilizer materials at different axial depths in the tank body, and coordinating with the overall flipping brought about by the reverse rotation of the tank body, so that the stirring element can fully mix the organic fertilizer materials in the tank body, thereby eliminating the mixing dead corner formed by the accumulation of organic fertilizer materials at the bottom of the tank body, and while the turning auger rotates, it can also crush and shear the compacted organic fertilizer materials in the tank body, avoiding the material agglomeration phenomenon caused by insufficient shear force in traditional equipment.

[0011] Preferably, the stirring member includes a stirring rod, the interior of the stirring rod is hollow and is sleeved with a center rod, the top end of the center rod passes through the outside of the stirring rod and is rotatably connected to the mixing frame, and the top end of the center rod is also sleeved with a second gear plate that meshes with the first gear plate.

[0012] Through the above scheme, the present invention can drive the center rod to rotate inside the stirring rod through the second gear plate while the turning auger revolves and rotates with the mixing frame, so as to cleverly transmit the rotational power of the turning auger to the center rod and form a linkage transmission system, thereby facilitating the rotation of the center rod inside the stirring rod.

[0013] Furthermore, a plurality of stirring blades are staggered on the outside of the stirring rod, and a stirring handle that penetrates into the inside of the stirring rod is connected to one side of each stirring blade. The outside of the stirring handle penetrates the stirring rod and is movably connected to the stirring rod through a movable part. The end of the stirring handle that penetrates into the inside of the stirring rod is connected to the toggle mechanism on the outside of the center rod. When the center rod rotates, the toggle mechanism toggles the stirring handle to achieve multi-dimensional mixing and stirring of the stirring blades.

[0014] The ingenuity of the above scheme lies in that: when the turning auger transmits the rotational power to the center rod through the second gear plate to make it rotate, the center rod can apply a periodic force to the end of the stirring handle through the toggle mechanism, forcing the stirring handle to perform periodic motion under the constraint of the movable part, and then the free end of the stirring handle drives the stirring blade to perform periodic up and down swinging and shearing while rotating and stirring with the mixing frame, so that the stirring blade can perform multi-directional mixing and stirring of the organic fertilizer material in the tank body, thereby forming a three-dimensional stirring field, to replace the high-speed rotation of the stirring blade in a single plane in the prior art, thereby realizing that the stirring blade provides a more uniform shear force to the organic fertilizer material in the tank body, so that the mixing efficiency of the organic fertilizer material is higher and the mixing is more sufficient and uniform.

[0015] Further preferably, the toggle mechanism includes a gear groove, which is opened around the outside of the center rod and distributed corresponding to the stirring member, and the gear groove trajectory is a sine curve. A rotating gear meshing with it is provided inside the gear groove, and the side of the rotating gear corresponding to the stirring handle is connected to the stirring handle through a universal coupling.

[0016] Based on the above-mentioned toggle mechanism, when the center rod rotates, it drives the gear groove to rotate synchronously. Since the gear groove itself is in the shape of a sine curve, the positions of its peaks and troughs will change periodically when it rotates. The periodic changes in the peaks and troughs drive the height of the rotating gear in the axial direction of the center rod to change, thereby driving the height change of the rotating gear through the universal coupling to drive the height of the free end of the stirring handle to swing up and down synchronously. At the same time, the universal coupling can also transmit the rotation of the rotating gear to the stirring handle when the rotating gear changes periodically with the gear groove, so that the stirring handle itself rotates, thereby realizing the three-dimensional stirring motion of the stirring blade outside the stirring rod, thereby making the mixing process more uniform and sufficient.

[0017] Specifically, the movable part includes a through groove opened on the outside of the stirring rod, and a rotating sleeve movably sleeved on the outside of the stirring handle is provided inside the through groove, and the outside of the rotating sleeve is in spherical connection with the through groove of the stirring rod.

[0018] Based on the above-mentioned movable parts, when the rotating gear at one end of the stirring handle changes in height as the center rod rotates, the stirring handle can be synchronously swung up and down in the through groove through the rotating sleeve, and while swinging up and down, it rotates in the rotating sleeve as the stirring handle rotates, thereby changing the contact angle between the stirring blade and the material, so that the stirring blade provides complex and multi-directional stirring shear force to the organic fertilizer material when stirring the tank body, thereby achieving sufficient stirring and mixing.

[0019] Further specifically, the first transmission gear group includes a first central gear, a first transmission gear and a first ring gear. The first central gear is connected to the mixing mechanism through a connecting shaft. The first transmission gear is meshed around the first central gear and is connected to the frame base through a gear rack. The first ring gear protrudes and is connected to the bottom of the outer tank body, and its inner annular surface is meshed with the first transmission gear.

[0020] Through the first transmission gear set of the above scheme, the rotational power of the drive motor can be transmitted to the mixing mechanism and the tank body respectively, so that the self-rotation of the mixing mechanism and the reverse rotation of the tank body form relative motion, thereby achieving efficient mixing of the organic fertilizer material under the action of bidirectional shear force.

[0021] Preferably, a dosing barrel for adding auxiliary materials is provided on the blocking plate. The dosing barrel is mounted on a rotating ring of the blocking plate. The rotating ring is rotatably embedded in the blocking plate, and the rotating ring and the blocking plate are rotationally sealed.

[0022] The above scheme cleverly realizes the rotational dynamic delivery of auxiliary materials through the fertilizer barrel during the stirring and mixing process by setting a rotating ring and a dosing barrel, thereby avoiding the accumulation of auxiliary materials and the main material, and forming a uniform spatial distribution of the materials in the tank body.

[0023] Furthermore, the rotating ring and the rotating shaft are connected via a second transmission gear set. When the rotating shaft rotates, the rotating ring is driven to rotate on the blocking plate via the second transmission gear set, thereby driving the batching barrel to rotate and batch.

[0024] Furthermore, the second transmission gear group includes a second center gear, a second transmission gear and a second ring gear. The second center gear is sleeved on the outside of the upper end of the rotating shaft outside the tank body. The second transmission gear is meshed around the second center gear and is connected to the blocking plate through the gear rack. The second ring gear is protruded on the top of the blocking plate, and its inner annular surface is meshed with the second transmission gear.

[0025] The second gear transmission group based on the above scheme can transmit the rotational power received by the rotating shaft to the rotating ring, so that the rotating ring rotates around its axis on the blocking plate, and the rotation of the rotating ring can drive the dosing barrel to move in the circumferential direction, thereby realizing the dynamic delivery of auxiliary materials. There is no need to set up an additional drive motor, and the main driving power of the mixing mechanism is directly utilized to form a synergistic effect with the movement of the tank body and the stirring element. While reducing the energy consumption of the device operation, the synergistic effect of dynamic dosing and mixing movement further improves the uniformity of the physical and auxiliary material distribution of the organic fertilizer and the mixing efficiency.

[0026] It should be noted that a feed pipe and a discharge pipe are respectively provided at the upper and lower parts of the side of the tank body, and valves are installed on the feed pipe and the discharge pipe.

[0027] The arrangement of the feed pipe, the discharge pipe and the valve of the above-mentioned solution makes it easy for operators to add materials and auxiliary materials into the tank body for mixing and proportioning to generate organic fertilizer, and to discharge the finished organic fertilizer after production.

[0028] As can be seen from the above, compared with the prior art, this application has the following advantages and beneficial effects:

[0029] 1. The present invention drives the mixing frame and the stirring element to rotate through the rotating shaft by the driving motor, and the first transmission gear set can also transmit the rotational power to the tank body to make the tank body rotate in the opposite direction, thereby achieving a higher speed of the mixing mechanism with reference to the tank body without relying on the high-speed stirring of the motor under the condition of a single driving source, and achieving efficient mixing efficiency of the organic fertilizer under the driving of a lower motor speed, thereby reducing the energy consumption of the motor to a certain extent, and avoiding the damage to the activity of the microbial agent in the organic fertilizer material caused by excessive shear force caused by the single high-speed stirring of the motor, and achieving efficient mixing of the organic fertilizer material under the action of bidirectional shear force. When the mixing frame revolves under the drive of the rotating shaft, the first gear plate on the top of the turning auger The gear groove on the inner wall of the tank body will continuously mesh with each other to realize the self-rotation of the turning auger around its own axis. As a result, the turning auger can simultaneously have two motion states: revolving with the mixing frame and rotating on its own axis. As a result, the turning auger can simultaneously perform spiral propulsion on the orbital trajectory, thereby producing a bottom-up lifting effect on the organic fertilizer materials at different axial depths in the tank body. In conjunction with the overall overturning brought about by the reverse rotation of the tank body, the stirring element can fully mix the organic fertilizer materials in the tank body, thereby eliminating the mixing dead corner formed by the accumulation of organic fertilizer materials at the bottom of the tank body. In addition, while the turning auger rotates, it can also crush and shear the compacted organic fertilizer materials in the tank body, avoiding the material agglomeration phenomenon caused by insufficient shear force in traditional equipment.

[0030] 2. In the present invention, when the turning auger revolves and rotates with the mixing frame, the center rod is driven to rotate inside the stirring rod through the second gear plate, so as to cleverly transmit the rotating power of the turning auger to the center rod and form a linkage transmission system, thereby facilitating the rotation of the center rod in the stirring rod. When the turning auger transmits the rotating power to the center rod through the second gear plate to make it rotate, the center rod can apply a periodic force to the end of the stirring handle through the toggle mechanism, forcing the stirring handle to perform periodic motion under the constraint of the movable part, thereby making the free end of the stirring handle drive the stirring blade to perform periodic up and down swinging shearing while rotating and stirring with the mixing frame, thereby making the stirring blade perform multi-directional mixing and stirring of the organic fertilizer material in the tank body, thereby forming a three-dimensional stirring field, replacing the high-speed rotation of the stirring blade in a single plane in the prior art, thereby realizing that the stirring blade provides more uniform shearing force to the organic fertilizer material in the tank body, making the mixing efficiency of the organic fertilizer material higher and the mixing more fully and evenly.

[0031] 3. The present invention cleverly realizes the dynamic rotational feeding of auxiliary materials synchronously through the fertilizer barrel during the stirring and mixing process by providing a rotating ring and a dispensing barrel, thereby avoiding the accumulation of auxiliary materials and materials, and forming a uniform spatial distribution of materials in the tank body. That is, when the second transmission gear set drives the mixing frame and the tank body to rotate on the rotating shaft to mix and stir the organic fertilizer materials in the tank body, it can also synchronously drive the rotating ring to rotate on the blocking plate, so that the dispensing barrel can evenly throw the materials into the tank body along the circumferential direction during the rotation process. Its feeding trajectory forms a dynamic coordination with the eddy current field formed by the reverse rotation of the tank body, so that the materials are evenly diffused and distributed in layers in the tank body.

[0032] 4. The present invention further provides a feeding mechanism at the bottom of the dispensing barrel, and the feeding mechanism includes a guide rail bracket and a blanking head. When the rotating ring drives the dispensing barrel to rotate and feed after rotating, the dispensing barrel can drive the blanking head to rotate through the guide rail bracket, and the blanking head can synchronously drive the push rod to rotate after rotating, so that the push rod drives the roller to move on the inner wall of the tank after rotating. Since a plurality of bosses are provided at intervals on the inner wall of the tank, when the roller moves to the boss, it can push the push rod to move in the radial direction through the boss, so that the push rod drives the blanking head to slide radially in the chute through the slider after moving, so that the blanking head can feed at different positions in the radial direction of the blocking plate while following the rotation of the dispensing barrel to feed, thereby further increasing the diversity of feeding positions and achieving uniform feeding.

[0033] As can be seen from the above, the present invention achieves the effect of efficient mixing and uniform batching of organic fertilizers in the process of organic fertilizer batching through the mutual synergy of the above-mentioned mechanisms. Compared with the prior art, it effectively improves the quality and efficiency of organic fertilizer production and makes the batching device more effective. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings:

[0035] Figure 1 Schematic diagram of the overall structure of the device of Example 1 of the present invention;

[0036] Figure 2 This is a schematic diagram of the top view of the mixing frame of Example 1 of the present invention, which is intended to show the specific status of the material turning auger and stirring parts inside the mixing frame;

[0037] Figure 3 This is a schematic diagram of the central rod structure of Example 1 of the present invention, intended to illustrate its specific structure;

[0038] Figure 4 This is a schematic diagram of the stirring blade structure outside the stirring rod of Example 1 of the present invention, which is intended to show the stirring blade's upside-down movement when the central rod rotates;

[0039] Figure 5 This is a schematic side view of the stirring blade structure of Example 1 of the present invention, which is intended to show the state of rotation of the stirring blade itself when the central rod rotates;

[0040] Figure 6 Schematic diagram of the overall structure of the device according to embodiment 2 of the present invention;

[0041] Figure 7 For the present invention Figure 6 The enlarged structural diagram of the blocking plate is intended to show the specific structure of the blocking plate and the batching barrel;

[0042] Figure 8 This is a schematic diagram of a top view of the blocking plate according to embodiment 2 of the present invention, which is intended to illustrate the specific structure of the second transmission gear set and the rotating ring;

[0043] Figure 9 This is a schematic diagram of the blanking head structure at the bottom of the dispensing barrel in Example 3 of the present invention, which is intended to show the movement state of the blanking head when the dispensing barrel rotates.

[0044] The reference numerals represent: 1, frame base; 2, mixing tank; 21, tank body; 22, mixing mechanism; 221, mixing frame; 222, turning auger; 2221, first gear plate; 2222, gear groove; 223, stirring rod; 2231, stirring blade; 2232, stirring handle; 224, center rod; 2241, second gear plate; 2242, gear groove; 2243, rotating gear; 225, rotating sleeve; 23, blocking plate; 231, dispensing barrel; 232, Rotating ring; 233, blanking head; 234, pipe; 2351, guide rail bracket; 2352, slide groove; 2353, spring; 2354, push rod; 2355, roller; 2356, boss; 311, first center gear; 312, first transmission gear; 313, first ring gear; 321, second center gear; 322, second transmission gear; 323, second ring gear; 41, feed pipe; 42, discharge pipe; 5, drive motor; 51, rotating shaft; 52, connecting shaft. DETAILED DESCRIPTION

[0045] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with examples and drawings. The exemplary embodiments of the present invention and their descriptions are only used to explain the present invention and are not intended to limit the present invention.

[0046] In existing technologies, organic fertilizer production requires the thorough mixing of a variety of raw materials with significantly different physical states and chemical properties, such as livestock and poultry manure, straw, and microbial inoculants. Traditional mixing equipment relies on a single agitator shaft to drive the paddles, which only achieves flat-surface mixing and cannot effectively handle materials at different heights. This results in dead zones within the tank, as well as uneven shear force distribution, high energy consumption, and the destruction of microbial inoculants by a single high-speed shearing motion.

[0047] In view of this, the present application proposes an automatic mixing and batching device for producing organic fertilizer, as specifically described in the following embodiments.

[0048] Example 1;

[0049] Please also refer to Figures 1 to 5As shown, the embodiment discloses an automatic mixing and batching device for producing organic fertilizer, which includes a frame base 1 with a mixing tank 2 rotating on the upper part, the mixing tank 2 includes a tank body 21 and a mixing mechanism 22 arranged inside the tank body 21, a blocking plate 23 is rotatably connected to the upper part of the tank body 21, a driving motor 5 is installed on the upper part of the blocking plate 23, and the output end of the driving motor 5 is connected to the mixing mechanism 22 through a rotating shaft 51 passing through the blocking plate 23; a first transmission gear set is further provided between the bottom of the tank body 21 and the frame base 1, and the first transmission gear set is connected to the mixing mechanism 22 through a connecting shaft 52, and the driving motor 5 drives the mixing mechanism 22 through the rotating shaft 51 at the output end While the mechanism 22 rotates inside the tank body 21, the connecting shaft 52 is used as the power input of the first transmission gear set, so that the first transmission gear set drives the tank body 21 to rotate in the opposite direction along the mixing mechanism 22; the mixing mechanism 22 includes a mixing frame 221, the top of the mixing frame 221 is connected to the rotating shaft 51, and the bottom is connected to the connecting shaft 52, and a stirring element is connected to the middle of the mixing frame 221. A turning auger 222 rotatably connected to the mixing frame 221 is provided around the stirring element, and a first gear disk 2221 is provided on the top of the turning auger 222, and a gear groove 2222 meshing with the first gear disk 2221 is provided on the inner wall of the tank body 21.

[0050] Based on the above embodiments, it can be understood that the device can provide efficient and comprehensive mixing during the production process of organic fertilizer. Specifically, it drives the mixing mechanism 22 and the tank body 21 to rotate in opposite directions through the driving motor 5, and the rotation process between the tank body 21 and the blocking plate 23 can rely on the outer edge of the upper part of the tank body 21 to be engaged with the edge of the blocking plate 23, and the friction between the two can be reduced by arranging components such as ball bearings. As for the blocking plate 23, it is connected to the frame base 1 and can serve as a mounting bracket for the driving motor 5.

[0051] Different from the traditional equipment that only relies on the unidirectional rotation of the stirring member, the present device can realize that the organic fertilizer material undergoes high-frequency shearing, collision and throwing during the relative movement between the stirring member and the tank body 21. That is to say, while the present device drives the mixing frame 221 and the stirring member to rotate via the rotating shaft 51 by the driving motor 5, the first transmission gear set can also transmit the rotational power to the tank body 21 to make the tank body 21 rotate in the opposite direction, thereby achieving a faster speed of the mixing mechanism 22 with reference to the tank body 21 under the condition of a single driving source without relying on the high-speed stirring of the motor, and achieving efficient mixing efficiency of the organic fertilizer under the driving of a lower motor speed, thereby reducing the energy consumption of the motor to a certain extent, and avoiding the damage to the activity of the microbial agent in the organic fertilizer material caused by excessive shear force caused by the single high-speed stirring of the motor;

[0052] At the same time, the mixing mechanism 22 includes a mixing frame 221, a turning auger 222 and a stirring member. Figure 1 and Figure 2 As shown, the mixing frame 221 is an "I-shaped" structure formed by an upper plate, a bottom plate and a stirring rod 223 located between the upper plate and the bottom plate, and the turning auger 222 is arranged in an array around the interior of the mixing frame 221, and the turning auger 222 is rotatably connected to the mixing frame 221, and a first gear plate 2221 is keyed to the top of the turning auger 222, and a gear convex groove 2222 that meshes with the first gear plate 2221 is provided at a position corresponding to the first gear plate 2221 in the tank body 21. Therefore, when the mixing frame 221 revolves under the drive of the rotating shaft 51, the first gear plate 2221 on the top of the turning auger 222 will continuously mesh with the gear convex groove 2222 on the inner wall of the tank body 21 to realize the turning auger 222 rotating around its own axis. The turning auger 222 rotates on its own axis, so that it can simultaneously have two motion states: revolving with the mixing frame 221 and rotating on its own axis, so that the turning auger 222 can simultaneously perform spiral propulsion on the revolution trajectory, thereby producing a bottom-up lifting effect on the organic fertilizer materials at different axial depths in the tank body 21, and cooperating with the overall overturning brought about by the reverse rotation of the tank body 21, so that the stirring element can fully mix the organic fertilizer materials in the tank body 21, thereby eliminating the mixing dead corner formed by the accumulation of organic fertilizer materials at the bottom of the tank body 21, and while the turning auger 222 rotates on its own axis, it can also crush and shear the compacted organic fertilizer materials in the tank body 21, avoiding the material agglomeration phenomenon caused by insufficient shear force in traditional equipment.

[0053] Specifically, the device combines the reverse rotation of the mixing mechanism 22 and the tank body 21, and realizes comprehensive mixing and stirring of the organic fertilizer material in the tank body 21 through the axial direction and stirring member of the turning auger 222 in the mixing frame 221, thereby ensuring the uniformity of the organic fertilizer material during mixing and batching, thereby ensuring the quality of organic fertilizer production and improving the use effect of the device.

[0054] It should be noted that in Figure 1 and Figure 2 As shown in the figure, the stirring member includes a stirring rod 223, the interior of the stirring rod 223 is hollow and is sleeved with a center rod 224, the top end of the center rod 224 passes through the outside of the stirring rod 223 and is rotatably connected to the mixing frame 221, and the top end of the center rod 224 is also sleeved with a second gear plate 2241 that meshes with the first gear plate 2221. While the turning auger 222 revolves and rotates with the mixing frame 221, the center rod 224 is driven to rotate inside the stirring rod 223 through the second gear plate 2241, so as to transmit the rotational power of the turning auger 222 to the center rod 224 and form a linkage transmission system, thereby facilitating the rotation of the center rod 224 inside the stirring rod 223.

[0055] Further, see Figure 1 、 Figure 2 and Figure 4 , a plurality of stirring blades 2231 are staggeredly provided on the outside of the stirring rod 223, and a stirring handle 2232 that penetrates into the inside of the stirring rod 223 is connected to one side of each stirring blade 2231. The outside of the stirring handle 2232 penetrates the stirring rod 223 and is movably connected to the stirring rod 223 through a movable part. The end of the stirring handle 2232 that penetrates into the inside of the stirring rod 223 is connected to the toggle mechanism on the outside of the center rod 224. When the center rod 224 rotates, the toggle mechanism toggle the stirring handle 2232 to realize multi-dimensional mixing and stirring of the stirring blade 2231.

[0056] It can be understood that, in conjunction with the accompanying drawings, the staggered arrangement of the stirring blades 2231 means that the multiple stirring blades 2231 are asymmetrically distributed in the radial and axial directions of the stirring rod 223, which can be specifically achieved by a spiral arrangement or a stacked staggered manner, thereby reducing the mixing dead angle by expanding the material contact range, and the movable member allows the stirring handle to be displaced in three-dimensional space, which can be specifically achieved by a ball hinge or a universal joint structure, and realizes the composite trajectory of the stirring blades 2231 by providing multi-degree-of-freedom motion. The toggle mechanism refers to a drive component that periodically changes the displacement of the stirring handle 2232, so as to convert the rotation of the center rod 224 into the reciprocating motion of the stirring handle 2232 through mechanical transmission;

[0057] Specifically, when the turning auger 222 transmits the rotational power to the center rod 224 through the second gear plate 2241 to rotate it, the center rod 224 applies a periodic force to the end of the stirring handle 2232 through the toggle mechanism, forcing the stirring handle 2232 to perform periodic motion under the constraint of the movable part, and then the free end of the stirring handle 2232 drives the stirring blade 2231 to perform periodic up and down swinging and shearing while rotating and stirring with the mixing frame 221, so that the stirring blade 2231 can perform multi-directional mixing and stirring of the organic fertilizer material in the tank body 21, thereby forming a three-dimensional stirring field, to replace the high-speed rotation of the stirring blade 2231 in a single plane in the prior art, thereby realizing that the stirring blade 2231 provides a more uniform shear force on the organic fertilizer material in the tank body 21, so that the mixing efficiency of the organic fertilizer material is higher and the mixing is more sufficient and uniform.

[0058] Furthermore, for the toggle mechanism, in combination with the attached Figure 3 、 Figure 4 and Figure 5 Specifically, it includes a gear groove 2242, which is opened around the outside of the center rod 224 and corresponds to the distribution of the stirring member, and the trajectory of the gear groove 2242 is a sine curve. A rotating gear 2243 is provided inside the gear groove 2242 to engage with it, and the rotating gear 2243 is connected to the stirring handle through a universal coupling on one side of the stirring handle.

[0059] As for the gear groove 2242 , it is preferred that a side groove wall surface is provided with teeth that mesh with the outer portion of the rotating gear 2243 .

[0060] Based on the specific structure of the above-mentioned toggle mechanism, when the center rod 224 rotates, the gear groove 2242 is driven to rotate synchronously. Since the gear groove 2242 itself is in the shape of a sine curve, the positions of its peaks and troughs will change periodically when it rotates. The periodic changes in the peaks and troughs drive the height of the rotating gear 2243 in the axial direction of the center rod 224 to change, thereby driving the height of the free end of the stirring handle 2232 to swing up and down synchronously through the universal coupling through the height change of the rotating gear 2243. At the same time, the universal coupling can also transmit the rotation of the rotating gear 2243 to the stirring handle 2232 when the rotating gear 2243 changes with the periodic changes of the gear groove 2242, so that the stirring handle 2232 itself rotates, thereby realizing the stirring blade 2231 to realize three-dimensional stirring motion outside the stirring rod 223 (that is, in the case of Figure 4 and Figure 5 As shown, it has three motion states, one of which is that the stirring blade 2231 follows the mixing frame 221 to revolve in the tank body 21, the second is that the stirring blade 2231 follows the stirring handle 2232 to swing up and down, and the third is that the stirring blade 2231 follows the stirring handle 2232 to rotate about its axis). Therefore, the organic fertilizer material can be effectively turned and mixed in more directions during the mixing process, which greatly improves the uniformity and efficiency of the mixing. The multi-dimensional motion breaks the stratification between the organic fertilizer materials and enhances the shearing effect. At the same time, the dead angle of mixing inside the tank body 21 is eliminated, and the fibrous or high-humidity materials are prevented from being compacted during the mixing process, thereby improving the mixing uniformity of the organic fertilizer and the subsequent fermentation efficiency, thereby improving the subsequent quality of the organic fertilizer.

[0061] In some embodiments, the universal coupling is preferably a ball cage coupling so that it will not interfere with the height change of the rotating gear 2243 while transmitting power, thereby achieving the height change of the rotating gear 2243 while driving the stirring handle to swing and rotate. As for its specific structure, this application does not provide a specific description or further limitation on it. It itself is a public prior art, and technical personnel in the relevant field can obtain its related technology through existing public channels (including but not limited to purchase).

[0062] It should be noted that in Figure 4 As shown in the figure, the movable part includes a through groove opened on the outside of the stirring rod 223, and a rotating sleeve 225 is provided inside the through groove and movably connected to the outside of the stirring handle 2232, and the outside of the rotating sleeve 225 is spherically connected to the through groove of the stirring rod 223.

[0063] Among them, the through groove refers to an elongated groove extending axially along the stirring rod 223, and its function is to provide axial movement space for the stirring handle, so that the stirring handle can swing axially through the through groove as the height of the rotating gear 2243 changes. Specifically, when the rotating gear 2243 at one end of the stirring handle 2232 changes in height with the rotation of the center rod 224, the stirring handle 2232 can be synchronously swung up and down in the through groove through the rotating sleeve 225, and while swinging up and down, it rotates in the rotating sleeve 225 with the rotation of the stirring handle 2232, thereby changing the contact angle between the stirring blade 2231 and the material, so that the stirring blade 2231 provides complex and multi-directional stirring shear force to the organic fertilizer material when stirring in the tank body 21, thereby achieving sufficient stirring and mixing.

[0064] It is understandable that a flexible sealing gasket is also connected between the opening of the through groove and the rotating sleeve 225, so as to block and seal the through groove opening through the flexible sealing gasket to prevent the organic fertilizer material from entering the stirring rod 223 through the through groove, thereby causing a jamming obstruction to the rotation of the center rod 224.

[0065] Specifically, combined Figure 1 As shown, the first transmission gear group includes a first central gear 311, a first transmission gear 312 and a first ring gear 313. The first central gear 311 is connected to the mixing mechanism 22 via a connecting shaft 52, and the first central gear 311 is keyed to the bottom end of the connecting shaft 52. The first transmission gear 312 is meshed around the first central gear 311 and is connected to the frame base 1 through a gear rack. The first ring gear 313 protrudes and is connected to the bottom of the outer tank body 21, and its inner annular surface is meshed with the first transmission gear 312. The first transmission gear 312 is arrayed around the first central gear 311, and is preferably set to 3.

[0066] It should be understood that when the mixing mechanism 22 drives the first central gear 311 to rotate through the connecting shaft 52, the first central gear 311 drives the first transmission gear 312 to rotate about the gear rack axis, and then the first transmission gear 312 rotates through its meshing relationship with the inner annular surface of the first ring gear 313, driving the first ring gear 313 to rotate in the opposite direction, and then the first ring gear 313 rotates in the opposite direction and drives the tank body 21 to rotate in the opposite direction of the rotation direction of the mixing mechanism 22, thereby forming a relative motion between the rotation of the mixing mechanism 22 and the reverse rotation of the tank body 21, thereby achieving efficient mixing of the organic fertilizer material under the action of bidirectional shear force.

[0067] Example 2;

[0068] This embodiment is based on embodiment 1. Please refer to Figure 6The difference from Example 1 is that a dispensing barrel 231 for adding auxiliary materials is further provided on the blocking plate 23, and the dispensing barrel 231 is installed on a rotating ring 232 of the blocking plate 23, and the rotating ring 232 is rotatably embedded in the blocking plate 23.

[0069] In some embodiments, a rotation seal is formed between the rotating ring 232 and the blocking plate 23 to prevent the auxiliary material from escaping.

[0070] It should be noted that, in the prior art, when composting organic fertilizer, the mixing and batching device often adds all the materials and auxiliary materials into the device together. However, in this way, since the materials and auxiliary materials are put into the device together during mixing, the auxiliary materials and the materials are easily piled up together during subsequent mixing, resulting in uneven mixing and affecting the quality of the organic fertilizer. Therefore, on the basis of Example 1, the present application also realizes the synchronous rotation and dynamic feeding of the auxiliary materials through the fertilizer barrel during the stirring and mixing process, thereby avoiding the accumulation of the auxiliary materials and the materials, and forming a uniform spatial distribution of the materials in the tank body 21.

[0071] Furthermore, if Figure 8 As shown, the rotating ring 232 is connected to the rotating shaft 51 through a second transmission gear set. When the rotating shaft 51 rotates, the rotating ring 232 is driven by the second transmission gear set to rotate on the blocking plate 23 to drive the dosing barrel 231 to rotate and dosing. Compared with the prior art, the present application drives the mixing frame 221 and the tank body 21 to rotate through the second transmission gear set when the rotating shaft 51 drives the mixing frame 221 and the tank body 21 to rotate to mix and stir the organic fertilizer material in the tank body 21, and can also synchronously drive the rotating ring 232 to rotate on the blocking plate 23, so that the dosing barrel 231 can evenly sprinkle the material into the interior of the tank body 21 along the circumferential direction during the rotation process, and its feeding trajectory forms a dynamic match with the eddy current field formed by the reverse rotation of the tank body 21, so that the material is evenly diffused and distributed in a layered manner in the tank body 21.

[0072] Specifically, for the second transmission gear set, combined with Figure 6 and Figure 7 As shown, it includes a second center gear 321, a second transmission gear 322 and a second ring gear 323. The second center gear 321 is sleeved on the outer side of the upper end of the rotating shaft 51 outside the tank body 21. The second transmission gear 322 is meshed around the second center gear 321 and is connected to the blocking plate 23 through the gear rack. The second ring gear 323 is protruded on the top of the blocking plate 23, and its inner annular surface is meshed with the second transmission gear 322.

[0073] Specifically, when the rotating shaft 51 is rotated by the driving motor 5, the second center gear 321 rotates synchronously with the rotating shaft 51, and drives the second ring gear 323 to rotate through the meshing second transmission gear 322. Since the second ring gear 323 is fixedly connected to the rotating ring 232, the rotating ring 232 can rotate around its axis on the blocking plate 23, and the rotation of the rotating ring 232 can drive the dosing barrel 231 to move in the circumferential direction to realize the dynamic delivery of auxiliary materials. There is no need to set up an additional driving motor 5. The main driving power of the mixing mechanism 22 is directly used to form a synergistic effect with the movement of the tank body 21 and the stirring element. While reducing the energy consumption of the device operation, the synergistic effect of dynamic dosing and mixing movement further improves the uniformity of the physical and auxiliary material distribution of the organic fertilizer and the mixing efficiency.

[0074] Example 3;

[0075] This embodiment is based on embodiment 2. It should be noted that Figure 7 As shown in the figure, the difference from Example 2 is that a feeding mechanism is provided at the bottom position of the dosing barrel 231 extending to the inside of the tank body 21. The feeding mechanism includes a blanking head 233 installed below the dosing barrel 231 through a guide rail bracket 2351. The upper part of the blanking head 233 is connected to the dosing barrel 231 through a pipe 234 with elastic telescopic properties, and a feeding pump is also provided at one end of the pipe 234 located inside the blanking head 233.

[0076] The pipe 234 having elastic expansion and contraction properties can be stretched synchronously when the blanking head 233 moves radially, so that the length of the pipe 234 changes, thereby making the pipe 234 adapt to the radial movement of the blanking head 233 without causing obstruction to the blanking head 233.

[0077] like Figure 9 As shown, the blanking head 233 is tapered as a whole and is externally connected to the guide rail bracket 2351 via a slider. A discharge valve is provided at the bottom of the blanking head 233.

[0078] The guide rail bracket 2351 is a rectangular frame as a whole, the top of which is connected to the dispensing barrel 231, and the length direction is parallel to the radial direction of the blocking plate 23, and a slide groove 2352 is provided in the middle of the interior thereof, and the blanking head 233 is slidably embedded in the slide groove 2352 through a slider, and both ends of the slide groove 2352 are connected to the blanking head 233 through compression springs 2353, and a push rod 2354 is connected to the outside of the blanking head 233 in the length direction of the slide groove 2352, and the push rod 2354 is provided with a roller 2355 in contact with the inner wall of the tank body 21 at the end away from the blanking head 233, and a plurality of bosses 2356 are provided at intervals at the position of the blanking head 233 on the inner wall of the tank body 21, and the protrusion degrees of the plurality of bosses 2356 are different, and they transition to the circular arc of the inner wall of the tank body 21;

[0079] When the feeding drum 231 is rotated and the feeding drum 231 is rotated, the feeding drum 231 can drive the blanking head 233 to rotate through the guide rail bracket 2351 after the feeding drum 231 rotates, and the feeding head 233 can synchronously drive the push rod 2354 to rotate after the rotation of the push rod 2354, so that the roller 2355 can move on the inner wall of the tank body 21 after the rotation of the push rod 2354, and since a plurality of bosses 2356 are provided at intervals on the inner wall of the tank body 21, when the roller 2355 moves to the bosses 2356, it can push the push rod 2354 to move in the radial direction through the bosses 2356, so that the push rod 2354 can drive the blanking head 233 to slide radially in the slide groove 2352 after the movement of the push rod 2354, thereby realizing that the blanking head 233 can feed materials at different positions in the radial direction of the blocking plate 23 while following the feeding drum 231 to rotate and feed materials, thereby further increasing the diversity of the feeding positions and realizing uniform feeding.

[0080] Example 4;

[0081] This embodiment is based on the above embodiments 1-3, and the only difference between it and the above embodiments is that: Figure 1 and Figure 6 In the figure, it is shown that the upper and lower sides of the tank body 21 are respectively provided with a feed pipe 41 and a discharge pipe 42, and valves are installed on the feed pipe 41 and the discharge pipe 42, wherein the feed pipe 41 refers to the material input channel arranged at the top of the side of the tank body 21, and the discharge pipe 42 is used for the output channel of the organic fertilizer finished product after mixing and batching. Specifically, it can be implemented by a metal pipe 234 with a flange connection, and its axis is arranged at a certain angle to the radial direction of the tank body 21 to facilitate the entry and exit of the material along the tangential direction of the inner wall of the tank body 21. The valve refers to an actuator used to control the opening and closing of the feed pipe 41 and the discharge pipe 42, which can be implemented by a pneumatic butterfly valve or an electric ball valve, and the material flow rate is controlled by adjusting the opening and closing angle.

[0082] It should also be noted that, in actual applications, the rotating, sliding, meshing and other moving cooperating parts in this application are all well lubricated and tightly sealed, and corresponding protective shells are provided on the outside according to the actual situation. However, in the drawings of this application, in order to clearly indicate the connection status of each moving part, they are not shown. In addition, technical personnel can also understand that each component in this application is made of metal or plastic materials with adaptable strength in the field to which it belongs to ensure that its structural rigidity meets actual needs.

[0083] It is further explained that in the present solution, the first transmission gear set and the second transmission gear set are essentially constituted as a planetary gear set. As for the planetary gear set, it has a unique structural advantage and realizes multi-directional and precise power output of a single power source through multiple transmission gears rotating around the central gear. At the same time, the transmission speed ratio of the planetary gear can be set according to actual needs (for the specific speed ratio setting, this is an existing public technology, and this solution does not make specific restrictions here. In actual use, technicians can choose it independently according to the situation), so that the mixing tank 2 and the stirring mechanism operate in coordination with a precise reverse speed ratio to form a high-frequency, multi-dimensional material disturbance, which significantly improves the mixing depth and uniformity, allows materials with different physical properties to fully blend, enhances the bonding force between materials, and ensures the uniformity and stability of the entire device during the mixing and batching process, ensures the smooth operation of the tank body 21, and avoids the organic fertilizer in the tank body 21 from being stratified due to vibration during the transmission process after being evenly mixed and blended, thereby ensuring the stability of the quality of the organic fertilizer product.

[0084] It should be understood that the above specific embodiments further illustrate the objectives, technical solutions, and beneficial effects of the present invention. It should be understood that the above are merely specific embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are intended to be included within the scope of protection of the present invention. Furthermore, in the present application, the rotating, sliding, and meshing moving parts are well lubricated, and their exteriors may be provided with corresponding protective housings as appropriate (for example, in actual applications, a protective housing may be provided outside the gear groove 2222 within the tank body 21, with the top of the protective housing being inclined to facilitate the sliding of materials after entry and prevent accumulation on the protective housing). However, in the drawings of the present application, the connection status of the moving parts is not shown to clearly illustrate the connection status of the moving parts. It should also be understood that all components in the present application are made of metal or plastic materials with appropriate strength in the relevant field to ensure that their structural rigidity meets actual requirements.

[0085] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are schematic diagrams, which are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which the present invention can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in the present invention without affecting the efficacy and purpose that can be achieved by the present invention. In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. At the same time, directional terms such as "upper", "lower", "left", "right", "top", "bottom", "middle", etc. cited in this specification are only for the convenience of description in conjunction with the drawings, and are not intended to limit the scope of implementation of the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of implementation of the present invention without substantially changing the technical content.

Claims

1. An automatic mixing and batching device for producing organic fertilizer, comprising a frame base (1) with a mixing tank (2) rotatably provided on the upper portion, wherein the mixing tank (2) comprises a tank body (21) and a mixing mechanism (22) provided inside the tank body (21), characterized in that: A blocking plate (23) is rotatably connected to the upper portion of the tank body (21), a driving motor (5) is mounted on the upper portion of the blocking plate (23), and an output end of the driving motor (5) is connected to the mixing mechanism (22) via a rotating shaft (51) penetrating the blocking plate (23); A first transmission gear set is further provided between the bottom of the tank body (21) and the frame base (1), and the first transmission gear set is connected to the mixing mechanism (22) via a connecting shaft (52). The driving motor (5) drives the mixing mechanism (22) to rotate inside the tank body (21) via the rotating shaft (51) at the output end, and at the same time, the connecting shaft (52) is used as the power input of the first transmission gear set, so that the first transmission gear set drives the tank body (21) to rotate in the opposite direction along the mixing mechanism (22). The mixing mechanism (22) comprises a mixing frame (221), the top of the mixing frame (221) being connected to the rotating shaft (51), and the bottom being connected to the connecting shaft (52); a stirring member being connected to the middle of the mixing frame (221); and a turning auger (222) being rotatably connected to the mixing frame (221) being provided around the stirring member; a first gear disc (2221) being provided on the top of the turning auger (222); and a gear convex groove (2222) meshing with the first gear disc (2221) being provided on the inner wall of the tank body (21); The stirring member comprises a stirring rod (223), the interior of the stirring rod (223) is hollow and is sleeved with a center rod (224), the top end of the center rod (224) passes through the outside of the stirring rod (223) and is rotatably connected to the mixing frame (221), and the top end of the center rod (224) is also sleeved with a second gear plate (2241) that meshes with the first gear plate (2221); The outside of the stirring rod (223) is also staggered with a plurality of stirring blades (2231), and one side of each stirring blade (2231) is connected to a stirring handle (2232) that penetrates into the inside of the stirring rod (223). The outside of the stirring handle (2232) penetrates the stirring rod (223) and is movably connected to the stirring rod (223) through a movable part. One end of the stirring handle (2232) that penetrates into the inside of the stirring rod (223) is connected to a toggle mechanism on the outside of the center rod (224). When the center rod (224) rotates, the toggle mechanism toggle the stirring handle (2232) to achieve multi-dimensional mixing and stirring of the stirring blades (2231).

2. An automatic mixing and batching device for producing organic fertilizer according to claim 1, characterized in that, The toggle mechanism comprises a gear groove (2242), the gear groove (2242) being arranged around the outside of the central rod (224) and corresponding to the distribution of the stirring member, and the trajectory of the gear groove (2242) being in the shape of a sine curve, and a rotating gear (2243) meshing with the gear groove (2242) being provided inside the gear groove (2242), and the rotating gear (2243) is connected to the stirring handle via a universal coupling on the side corresponding to the stirring handle.

3. An automatic mixing and batching device for producing organic fertilizer according to claim 1, characterized in that, The movable part comprises a through slot opened on the outside of the stirring rod (223); a rotating sleeve (225) movably sleeved on the outside of the stirring handle (2232) is provided inside the through slot; and the outside of the rotating sleeve (225) is in spherical contact with the through slot of the stirring rod (223).

4. An automatic mixing and batching device for producing organic fertilizer according to claim 1, characterized in that, The first transmission gear set comprises a first central gear (311), a first transmission gear (312) and a first ring gear (313); the first central gear (311) is connected to the mixing mechanism (22) via a connecting shaft (52); the first transmission gear (312) is meshed around the first central gear (311) and is connected to the frame base (1) via a gear rack; the first ring gear (313) protrudes and is connected to the bottom of the outer tank (21), and its inner annular surface meshes with the first transmission gear (312).

5. An automatic mixing and batching device for producing organic fertilizer according to claim 1, characterized in that, A dosing barrel (231) for adding auxiliary materials is also provided on the blocking plate (23). The dosing barrel (231) is mounted on a rotating ring (232) of the blocking plate (23). The rotating ring (232) is rotatably embedded in the blocking plate (23), and the rotating ring (232) and the blocking plate (23) are rotationally sealed.

6. An automatic mixing and batching device for producing organic fertilizer according to claim 5, characterized in that, The rotating ring (232) is connected to the rotating shaft (51) via a second transmission gear set. When the rotating shaft (51) rotates, the second transmission gear set drives the rotating ring (232) to rotate on the blocking plate (23), thereby driving the dispensing barrel (231) to rotate and dispense ingredients.

7. An automatic mixing and batching device for producing organic fertilizer according to claim 6, characterized in that, The second transmission gear set includes a second central gear (321), a second transmission gear (322) and a second ring gear (323). The second central gear (321) is sleeved on the outer portion of the upper end of the rotating shaft (51) outside the tank body (21). The second transmission gear (322) is meshed around the second central gear (321) and is connected to the blocking plate (23) through a gear rack. The second ring gear (323) is protruding from the top of the blocking plate (23), and its inner annular surface is meshed with the second transmission gear (322).

8. An automatic mixing and batching device for producing organic fertilizer according to any one of claims 1 to 7, characterized in that: A feed pipe (41) and a discharge pipe (42) are respectively provided on the upper and lower sides of the tank body (21), and valves are installed on both the feed pipe (41) and the discharge pipe (42).

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