CN120838236B - Mixing device and mixing method based on fertilizer production - Google Patents

Abstract

This invention relates to the technical field of mixing equipment, and discloses a mixing device and method for fertilizer production. The mixing device includes a mixing tank, a motor fixedly connected to the top of the mixing tank, a rotating shaft fixedly connected to the motor output end, a guide sleeve fixedly connected to the middle of the rotating shaft, and an inner tube slidably connected inside the top of the mixing tank. The number of extension plate push-pull rods is equal to that of the sliding rods and located above them. When the liquid level changes with the liquid level, the extension plate float plate evenly distributes the sliding rods within the liquid, and drives multiple stirring blades to rotate via the upper extension plate sliding rods. The float plate automatically adjusts the stirring depth of the upper and lower stirring blades and sliding rods according to the liquid level in real time, ensuring that the stirring blades are always in full contact with the liquid and maintain efficient stirring. It stirs the liquid fertilizer at the bottom and sides separately, eliminating concentration stratification and stirring blind spots, and can agitate the liquid fertilizer in the mixing tank in all directions.

Description

Mixing device and mixing method based on fertilizer production

Technical Field

The invention relates to the technical field of mixing equipment, in particular to a mixing device and a mixing method based on fertilizer production.

Background

The mixer is an important device for mixing liquid fertilizer and other fluids through a stirring device, the working principle of the mixer mainly depends on the rotation of a stirring plate, and the static balance of the liquid is broken through by mechanical acting force, so that different components are uniformly mixed, and the requirement of a production process on the uniformity of materials is met.

However, in the prior art, new liquid fertilizer raw materials are required to be continuously added into the mixer or mixed materials are discharged, when the materials are added, the liquid level is raised, and when the materials are discharged, the liquid level is lowered, for example, in order to blend liquid fertilizers with different concentrations, water and fertilizers are required to be added for many times, the liquid level in the mixer is frequently changed, and most mixers adopt stirring plates with fixed positions, so that more efficient stirring and mixing can be realized under ideal conditions, namely when the liquid level is kept stable, but when the liquid level is changed, if the stirring structure is higher than the liquid level, part of stirring plates are separated from the liquid and exposed in the air, the idle stirring plates cannot exert effective stirring force on the liquid, so that the stirring efficiency is obviously lowered, otherwise, when the stirring plates are excessively submerged, the resistance of the liquid on the stirring plates is greatly increased, the stirring force is dispersed, the stirring efficiency is insufficient, so that the mixing is uneven, meanwhile, as the position of the stirring plate is fixed, the stirring plate cannot be uniformly distributed in the liquid, only the liquid with a specific height can be stirred, the upper layer liquid and the lower layer liquid are difficult to be driven to be fully mixed, so that the concentration layering of the liquid occurs, the upper layer liquid and the lower layer liquid cannot be fully mixed, and when the liquid level is low, the stirring plate idles to waste energy, when the liquid level is high, extra energy is required to drive the liquid with a larger volume, so that the running cost of equipment is increased, in order to solve the problems, two coping ways are mainly adopted in the industry at present, one way is manual adjustment, an operator manually adjusts the position of the stirring plate by observing the liquid level, but the way relies on manual operation, the problems of poor timeliness, high labor intensity, high human error and the like exist, the other way is an automatic adjustment scheme, through installation level sensor and electric lift device linkage, automatically regulated stirring board height, however, this scheme also has obvious limitation, and level sensor's precision receives the interference of factors such as impurity, bubble in the liquid fertilizer easily, leads to erroneous judgement, and electric lift device structure is complicated, long-term in the corrosive environment of liquid fertilizer, and the fault rate is high, and maintenance cost is big, can't satisfy the mixed demand.

Disclosure of Invention

The invention aims to provide a mixing device and a mixing method based on fertilizer production, which solve the problem of uneven mixing of liquid fertilizer caused by liquid level change.

The invention provides a mixing device based on fertilizer production, which comprises a mixing tank, a motor fixedly connected to the top end of the mixing tank, a rotating shaft fixedly connected to the output end of the motor, a guide sleeve fixedly connected to the middle of the rotating shaft, an inner pipe slidingly connected to the inside of the top end of the mixing tank, a liquid floating plate slidingly connected to the outside of the rotating shaft, a sliding rod arranged in the rotating shaft, a plurality of stirring sheets rotationally connected to the inside of the sliding rod, a push-pull rod hinged to the top of the stirring sheets, a sliding sleeve slidingly connected to the outside of the guide sleeve, and a connecting rod hinged between the sliding rod and the sliding sleeve, wherein the sliding rod is provided with two connecting rods which are symmetrical about the transverse central axis of the guide sleeve, the sliding rod above the sliding rod is hinged to the bottom of the liquid floating plate, the middle part of the push-pull rod is positioned in the rotating shaft, the sliding rods are equal to the sliding rods and are positioned above the sliding rods, the sliding sleeve is provided with two connecting rods which are symmetrical about the vertical central axis of the guide sleeve, and the liquid floating plate is uniformly distributed in liquid when the liquid level changes along with the height of the liquid level, and the sliding rod drives the stirring sheets to rotate through the sliding rod above.

Further, the uide bushing includes the lantern ring of fixed connection in the pivot middle part, and the symmetry is provided with two and fixed connection at the outside round bar of lantern ring, sets up a plurality of vertical pieces that are located the lantern ring upper and lower both sides respectively, sliding sleeve sliding connection is in the outside of round bar.

Further, two guide grooves are formed in the rotating shaft, the guide grooves are symmetrical to the transverse central axis of the lantern ring, the guide grooves are divided into inclined sections and vertical sections, and bottom blades are arranged at the bottom end of the rotating shaft.

Further, the top fixedly connected with axostylus axostyle of stirring piece, the push-and-pull rod includes the horizontal pole with axostylus axostyle fixed connection, the middle part fixedly connected with circle axle of horizontal pole, the circle axle is located the inside of guide way.

Further, the top of blending tank is provided with the sleeve pipe, fixedly connected with a plurality of guide arms on the sleeve pipe, the top of blending tank is provided with electric putter, electric putter is used for fixed inner tube, the inner tube does not laminate with the sleeve pipe, inner tube sliding connection is in the outside of guide arm, inner tube and guide arm laminating, the ring channel has been seted up to the outer wall of inner tube.

Further, the floating plate comprises a hollow floating plate positioned at the bottom end of the inner tube, and a solid sleeve and a connecting ring which are fixedly connected to the top of the hollow floating plate, wherein the solid sleeve is positioned in the inner tube, the top of the connecting ring is positioned in the annular groove, and gaps are reserved between the solid sleeve and the inner tube and between the connecting ring and the inner tube.

Further, when the circular shaft is positioned at the end point of the upper inclined section, the included angle between the central axis of the stirring sheet and the central axis of the sliding rod is forty-five degrees, and when the circular shaft is positioned at the end point of the upper vertical section, the included angle between the central axis of the stirring sheet and the central axis of the sliding rod is thirty degrees.

Further, extension plates are arranged on two sides of the hollow floating plate, a connecting sleeve is fixedly connected to the extension plates, the connecting sleeve is hinged to the upper sliding rod, and through holes are formed in the hollow floating plate.

Further, the number of the connecting rods is twice that of the sliding sleeves, side blades are fixedly connected to the connecting rods, and the sliding sleeves are not in contact with the vertical blades.

The invention further provides a mixing method based on fertilizer production, which adopts a mixing device based on fertilizer production and comprises the following steps:

Step one, proportioning and weighing raw materials according to requirements, and simultaneously feeding the raw materials into a mixing tank according to the sequence.

And step two, after the raw materials are filled into the mixing tank, the liquid floating plate is regulated along with the liquid level, and the raw materials are uniformly stirred through the stirring sheet.

And thirdly, conveying the mixed liquid fertilizer through a pipeline, and then filling.

The invention has the beneficial effects that:

1. Can be in real time according to liquid level through the liquid floating plate to through the connecting rod, make stirring piece and the slide bar of upper and lower position, automatically regulated stirring degree of depth makes stirring piece contact and keep high-efficient stirring with liquid fully all the time, stirs bottom and side direction liquid fertilizer respectively, eliminates concentration layering and stirring blind area, can all-round stirring mix the interior liquid fertilizer of jar.

2. The sliding rod is driven by the liquid floating plate, so that the sliding rod is guided, the plurality of stirring sheets are pushed and pulled, the positions and angles of the stirring sheets are automatically adjusted, the low water level is used for focusing on radial flow, the high water level is used for focusing on axial flow, and the dynamic adjustment of the angles of the blades is realized, so that the mixing uniformity is ensured, and meanwhile, the energy consumption and the lifting efficiency are automatically reduced.

3. Through the reciprocates of the floating plate to automatically regulated upper and lower slide bar's position, and cooperation push-and-pull rod changes stirring piece angle, need not external power and sensing control, guarantee lubrication and the structural integrity of mechanical parts, can last stable operation, ensure that the mixing effect is reliable and stable.

Drawings

Fig. 1 is a schematic perspective view of a first view angle of a mixing device;

FIG. 2 is a top view of a mixing tank of the mixing device;

FIG. 3 is a cross-sectional view of the mixing device at A-A of FIG. 2;

FIG. 4 is a schematic structural view of a stirring plate of a mixing device;

FIG. 5 is a schematic structural view of a guide sleeve of a mixing device;

FIG. 6 is an enlarged schematic view of the mixing device at B in FIG. 5;

FIG. 7 is a schematic structural view of a liquid floating plate of a mixing device;

FIG. 8 is a schematic structural view of a rotating shaft of a mixing device;

fig. 9 is a schematic structural view of a slide bar of the mixing device.

In the figure:

1. Mixing tank, 101, sleeve, 102, guide rod, 2, motor, 3, rotating shaft, 31, guide groove, 301, inclined section, 302, vertical section, 32, bottom blade, 4, guide sleeve, 41, collar, 42, round rod, 43, vertical blade, 5, inner tube, 51, annular groove, 6, liquid floating plate, 61, hollow floating plate, 611, extension plate, 62, solid sleeve, 63, connecting ring, 601, connecting sleeve, 602, through hole, 7, slide bar, 8, stirring piece, 81, shaft lever, 9, push-pull rod, 91, cross bar, 92, round shaft, 10, slide sleeve, 11, connecting rod, 12, electric push rod, 13, side blade.

Detailed Description

In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

Referring to fig. 1-9, a mixing device based on fertilizer production is provided for a first embodiment of the present invention, which comprises a mixing tank 1, and further comprises a motor 2 fixedly connected to the top end of the mixing tank 1, a rotating shaft 3 fixedly connected to the output end of the motor 2, a guide sleeve 4 fixedly connected to the middle part of the rotating shaft 3, an inner tube 5 slidingly connected to the inside of the top end of the mixing tank 1, a floating plate 6 slidingly connected to the outside of the rotating shaft 3, a sliding rod 7 arranged in the rotating shaft 3, a plurality of stirring pieces 8 arranged in the sliding rod 7 in a rotating manner, a push-pull rod 9 hinged to the top of the stirring pieces 8, a sliding sleeve 10 slidingly connected to the outside of the guide sleeve 4, a connecting rod 11 hinged between the sliding rod 7 and the sliding sleeve 10, wherein the sliding rod 7 is provided with two sliding rods and is horizontally symmetrical with respect to the central axis of the guide sleeve 4, the upper sliding rod 7 is hinged to the bottom of the floating plate 6, the middle part of the rod 9 is positioned in the rotating shaft 3, the number of the sliding rods 9 is equal to and above the sliding rod 7, the sliding rod 10 is provided with two sliding rods and is symmetrically symmetrical with respect to the vertical central axis of the guide sleeve 4, the sliding rod 6 varies along with the height of the liquid surface 6, and the liquid is uniformly distributed in the sliding rod 7 and rotates along the sliding rod 8.

Specifically, the mixing tank 1 is a basic container for bearing liquid fertilizer, the output end of the motor 2 outputs power to the rotating shaft 3, the sliding rod 7 and the stirring piece 8 form a stirring assembly, the liquid floating plate 6 is slidably connected to the outside of the rotating shaft 3, when the liquid level rises, the liquid floating plate 6 slides upwards along the rotating shaft 3 under the action of buoyancy, the liquid level descends, the whole stirring assembly is driven to dynamically adapt to the liquid level, the two sliding rods 7 are respectively positioned above and below the guide sleeve 4, the upper sliding rod 7 is hinged to the bottom of the liquid floating plate 6, when the liquid floating plate 6 moves, the sliding rods 7 move in liquid along with the liquid, the stirring pieces 8 are uniformly distributed all the time, and the sliding rods 7 are provided with a plurality of stirring pieces 8, so that the liquid fertilizer can be effectively mixed.

Wherein, the mixing tank 1 is provided with a feeding and discharging port.

Referring to fig. 1 to 8, the guide sleeve 4 includes a collar 41 fixedly coupled to the middle of the rotation shaft 3, two circular rods 42 symmetrically disposed and fixedly coupled to the outside of the collar 41, a plurality of vertical plates 43 disposed at the upper and lower sides of the collar 41, and the sliding sleeve 10 is slidably coupled to the outside of the circular rods 42.

Specifically, the lantern ring 41 is fixed outside the rotating shaft 3 through the screw, the lantern ring 41 is tightly attached to the outer surface of the rotating shaft 3, relative displacement of the lantern ring 41 and the rotating shaft is avoided under the high-speed rotation working condition, two round rods 42 are symmetrically arranged outside the lantern ring 41, round grooves matched with the round rods 42 are formed in the inner wall of the sliding sleeve 10, the sliding sleeve 10 is in sliding connection with the outer portion of the round rods 42, when the floating plate 6 drives the upper sliding rod 7 to move, the upper sliding rod 7 pushes the sliding sleeve 10 to stably slide on the round rods 42 through the corresponding connecting rods 11, at the moment, the sliding sleeve 10 pushes the lower sliding rod 7 to synchronously move through the connected connecting rods 11, so that the sliding rods 7 are uniformly distributed in the mixing tank 1, and the sliding rods 7 drive the stirring pieces 8 to be synchronously and uniformly distributed in the liquid fertilizer.

Referring to fig. 3 to 6, two guide grooves 31 are formed in the rotating shaft 3, the guide grooves 31 are symmetrical with respect to the transverse central axis of the collar 41, the guide grooves 31 are divided into an inclined section 301 and a vertical section 302, and bottom blades 32 are arranged at the bottom end of the rotating shaft 3.

The top fixedly connected with axostylus axostyle 81 of stirring piece 8, push-and-pull rod 9 include with axostylus axostyle 81 fixed connection's horizontal pole 91, the middle part fixedly connected with circle axle 92 of horizontal pole 91, the inside that circle axle 92 is located guide slot 31.

Specifically, the vertical section 302 and the inclined section 301 smoothly transition to limit the position of the circular shaft 92, when the liquid level changes, the liquid floating plate 6 moves to drive the slide bar 7 to move up and down, when the slide bar 7 moves, the slide bar 8 and the shaft rod 81 are pulled to move synchronously, the slide bar 11 pushes the slide sleeve 10 to slide on the circular rod 42, meanwhile, the circular shaft 92 slides in the guide groove 31, the inclined section 301 of the guide groove 31 guides the circular shaft 92 in the sliding process, so that the circular shaft 92 can laterally displace, one end of the shaft rod 81 is pushed by the cross bar 91, the automatic adjustment of the angle of the stirring bar 8 is realized, and when the liquid level is stable at a certain height, the stirring bar 8 keeps a fixed angle, so that stable stirring effect is ensured, and mixing efficiency and uniformity are improved.

Referring to fig. 2-7, a sleeve 101 is arranged at the top of the mixing tank 1, a plurality of guide rods 102 are fixedly connected to the sleeve 101, an electric push rod 12 is arranged at the top of the mixing tank 1, the electric push rod 12 is used for fixing an inner pipe 5, the inner pipe 5 is not attached to the sleeve 101, the inner pipe 5 is slidingly connected to the outside of the guide rods 102, the inner pipe 5 is attached to the guide rods 102, an annular groove 51 is formed in the outer wall of the inner pipe 5, the guide rods 102 guide the inner pipe 5, and when the electric push rod 12 is started to push the inner pipe 5, the inner pipe 5 is pressed to be tightly attached to the guide rods 102, so that the inner pipe 5 is fixed.

Referring to fig. 2-6, the floating plate 6 includes a hollow floating plate 61 at the bottom end of the inner tube 5, and a solid sleeve 62 and a connecting ring 63 fixedly connected to the top of the hollow floating plate 61, wherein the solid sleeve 62 is located inside the inner tube 5, the top of the connecting ring 63 is located inside the annular groove 51, and gaps exist between the solid sleeve 62 and the connecting ring 63 and the inner tube 5.

Specifically, the outer surface of the inner tube 5 is of a metal structure, the inner portion is of plastic, the plastic is wrapped by metal, and the integral liquid floating plate 6 adopts a split type combined structure and is composed of a hollow floating plate 61, a solid sleeve 62 and a connecting ring 63. The hollow cavity structure inside the hollow floating plate 61 effectively increases the liquid discharge volume, enough buoyancy is generated to support the whole floating plate 6 to float along with the liquid level, the solid sleeve 62 is cylindrical, the solid sleeve 62 is inserted into the inner pipe 5 in a clearance fit mode, a clearance is reserved between the solid sleeve and the solid sleeve without contact, the solid sleeve 62 can be ensured to freely rotate in the inner pipe 5, the connecting ring 63 surrounds the outer side of the solid sleeve 62, the outer diameter of the connecting ring 63 is slightly smaller than the inner diameter of the annular groove 51, the inner pipe 5 limits the whole upper and lower positions of the floating plate 6, when the inner pipe 5 is fixed, the whole floating plate 6 can only rotate and can not move up and down, when the liquid level in the mixing tank 1 rises, the hollow floating plate 61 is subjected to the action of liquid buoyancy, the solid sleeve 62 and the connecting ring 63 are driven to synchronously slide up along the inner pipe 5, and when the whole inner pipe 5 and the floating plate 6 falls along with self gravity.

Referring to fig. 1-8, when the circular shaft 92 is located at the end point of the upper inclined section 301, the angle between the stirring plate 8 and the central axis of the sliding rod 7 is forty five degrees, so that fluid can be pushed to flow upwards from the bottom and fall back from the periphery to form a complete circulation path, thereby pushing the fluid to circulate up and down, lifting the bottom sinking fluid to the upper layer to avoid layering, and when the circular shaft 92 is located at the end point of the upper vertical section 302, the angle between the stirring plate 8 and the central axis of the sliding rod 7 is thirty degrees, so that the axial flow is reduced, the fluctuation of the liquid level is avoided, and meanwhile, the rotation energy consumption is effectively reduced.

Referring to fig. 1-9, extension plates 611 are provided at both sides of the hollow floating plate 61, a connecting sleeve 601 is fixedly connected to the extension plates 611, the connecting sleeve 601 is hinged to the upper sliding rod 7, and the hollow floating plate 61 is provided with a through hole 602.

Specifically, the connecting sleeve 601 is made of high-strength stainless steel, a wear-resistant copper sleeve is embedded in the connecting sleeve, the inner diameter of the wear-resistant copper sleeve is matched with a hinge shaft at the end part of the upper sliding rod 7, so that the sliding rod 7 is allowed to flexibly rotate in a vertical plane, meanwhile, the abrasion of a hinge part is reduced through the antifriction characteristic of the copper sleeve, smooth transmission between the liquid floating plate 6 and the sliding rod 7 is ensured, and the edge of the through hole 602 is subjected to rounding treatment, so that liquid fertilizer can pass through the through hole 602.

Referring to fig. 1 to 9, the number of the connecting rods 11 is twice that of the sliding sleeves 10, the side blades 13 are fixedly connected to the connecting rods 11, and the sliding sleeves 10 are not contacted with the vertical blades 43, so that collision damage is avoided.

When the liquid fertilizer raw material enters, the hollow floating plate 61 moves correspondingly up and down, so that the whole liquid floating plate 6 floats on the surface of the liquid fertilizer, when the hollow floating plate 61 moves, the extending plates 611 on two sides of the hollow floating plate drive the upper sliding rod 7 to move synchronously through the connecting sleeve 601, and as the two sliding rods 7 are connected with the sliding sleeve 10 through the connecting rod 11, the sliding sleeve 10 is pushed by the connecting rod 11 to slide on the round rod 42, so that the lower sliding rod 7 is driven to move synchronously, the two sliding rods 7 are ensured to be uniformly distributed in the liquid all the time, stirring dead zones are avoided, meanwhile, in the process that the sliding rods 7 move up and down along with the liquid floating plate 6, the cross rod 91 is pulled by the stirring plate 8 and the shaft rod 81, and as the round shaft 92 in the middle of the cross rod 91 is arranged in the guide groove 31 of the rotating shaft 3, the round shaft 92 slides in the guide groove 31, the round shaft 92 is laterally displaced during sliding, the pushing the shaft 81, the angle adjustment of the stirring plate 8 is synchronously performed, the automatic adjustment of the angle of the stirring plate 8 is realized, the stirring plate is stopped, the position of the electric push rod 12 is fixed, and then the whole lifting system is driven to move stably due to the stable driving of the liquid floating plate 6.

Embodiment II referring to FIGS. 1-9, in a second embodiment of the present invention, a mixing method based on fertilizer production, a mixing device based on fertilizer production is adopted, comprising the following steps:

And firstly, proportioning and weighing raw materials according to requirements, and simultaneously feeding the raw materials into the mixing tank 1 in sequence.

And step two, after the raw materials are poured into the mixing tank 1, the liquid floating plate 6 is regulated along with the liquid level, and the raw materials are uniformly stirred through the stirring sheet 8.

And thirdly, conveying the mixed liquid fertilizer through a pipeline, and then filling.

It should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or substituted without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered in the scope of the claims of the present invention.

Claims (7)

1. The utility model provides a compounding device based on fertilizer production, including blending tank (1), a serial communication port, still include fixed connection in motor (2) on blending tank (1) top, fixed connection is in pivot (3) at motor (2) output, fixed connection is in uide bushing (4) at pivot (3) middle part, sliding connection is in inside inner tube (5) on blending tank (1) top, sliding connection is in outside liquid floating plate (6) of pivot (3), slide bar (7) of setting in pivot (3) inside, set up a plurality of and rotate and connect stirring piece (8) in slide bar (7), articulated push-and-pull rod (9) at stirring piece (8) top, sliding connection is in sliding sleeve (10) of uide bushing (4) outside, articulated connecting rod (11) between slide bar (7) and sliding sleeve (10), slide bar (7) are provided with two and about the horizontal axis symmetry of uide bushing (4), top slide bar (7) articulates in the bottom of liquid floating plate (6), the middle part of push-and-pull rod (9) is located inside of (3), the quantity of slide bar (9) is equal with its vertical axis (6) and the vertical axis of slide bar (7) is provided with two and is in the change when it is provided with slide bar (6), the sliding rods (7) are uniformly distributed in the liquid, and the plurality of stirring sheets (8) are driven to rotate through the sliding rods (7) above;

the guide sleeve (4) comprises a sleeve ring (41) fixedly connected to the middle of the rotating shaft (3), two round rods (42) fixedly connected to the outer part of the sleeve ring (41) are symmetrically arranged, a plurality of vertical plates (43) respectively positioned on the upper side and the lower side of the sleeve ring (41) are arranged, and the sliding sleeve (10) is slidably connected to the outer part of the round rods (42);

Two guide grooves (31) are formed in the rotating shaft (3), the guide grooves (31) are symmetrical with respect to the transverse central axis of the lantern ring (41), the guide grooves (31) are divided into inclined sections (301) and vertical sections (302), and bottom blades (32) are arranged at the bottom end of the rotating shaft (3);

The top fixedly connected with axostylus axostyle (81) of stirring piece (8), push-and-pull rod (9) include with axostylus axostyle (81) fixed connection's horizontal pole (91), the middle part fixedly connected with circle axle (92) of horizontal pole (91), circle axle (92) are located the inside of guide way (31).

2. The mixing device based on fertilizer production according to claim 1, characterized in that the top of the mixing tank (1) is provided with a sleeve (101), a plurality of guide rods (102) are fixedly connected to the sleeve (101), an electric push rod (12) is arranged at the top end of the mixing tank (1), the electric push rod (12) is used for fixing an inner tube (5), the inner tube (5) is not attached to the sleeve (101), the inner tube (5) is slidably connected to the outer portion of the guide rod (102), the inner tube (5) is attached to the guide rod (102), and an annular groove (51) is formed in the outer wall of the inner tube (5).

3. The mixing device based on fertilizer production according to claim 2, wherein the floating plate (6) comprises a hollow floating plate (61) positioned at the bottom end of the inner tube (5), and a solid sleeve (62) and a connecting ring (63) fixedly connected to the top of the hollow floating plate (61), wherein the solid sleeve (62) is positioned inside the inner tube (5), the top of the connecting ring (63) is positioned inside the annular groove (51), and gaps exist between the solid sleeve (62) and the connecting ring (63) and the inner tube (5).

4. The mixing device based on fertilizer production according to claim 1, wherein when the circular shaft (92) is positioned at the end point of the upper inclined section (301), the included angle between the stirring blade (8) and the central axis of the sliding rod (7) is forty-five degrees, and when the circular shaft (92) is positioned at the end point of the upper vertical section (302), the included angle between the stirring blade (8) and the central axis of the sliding rod (7) is thirty degrees.

5. A mixing device based on fertilizer production according to claim 3, characterized in that two sides of the hollow floating plate (61) are provided with extension plates (611), the extension plates (611) are fixedly connected with connecting sleeves (601), the connecting sleeves (601) are hinged with upper sliding rods (7), and the hollow floating plate (61) is provided with through holes (602).

6. The mixing device based on fertilizer production according to claim 1, wherein the number of the connecting rods (11) is twice that of the sliding sleeves (10), side blades (13) are fixedly connected to the connecting rods (11), and the sliding sleeves (10) are not contacted with the vertical blades (43).

7. A mixing method based on fertilizer production, which adopts the mixing device based on fertilizer production as claimed in claim 1, and is characterized by comprising the following steps:

Firstly, proportioning and weighing raw materials according to requirements, and simultaneously feeding materials into a mixing tank (1) according to the sequence;

Step two, after the raw materials are poured into the mixing tank (1), the liquid floating plate (6) is regulated along with the liquid level, and the raw materials are uniformly stirred through the stirring sheet (8);

and thirdly, conveying the mixed liquid fertilizer through a pipeline, and then filling.