Rotary evaporation and concentration equipment for liquid fertilizer

Abstract

The utility model discloses rotary evaporation and concentration equipment for liquid fertilizer. The rotary evaporation and concentration equipment comprises a shell, a differential stirring mechanism and a vacuum pump mechanism, the shell comprises a cushioning outer shell, a motor arranged at the bottom of the inner wall of the cushioning outer shell and a rotating barrel arranged over the motor. An upper cover is arranged above the cushioning shell; the motor is fixedly connected with the cushioning shell; the differential stirring mechanism comprises a planetary gear set arranged at the bottom of the inner wall of the rotating barrel and a rotating sleeve arranged on the planetary gear set; a plurality of brackets are arranged on the rotating sleeve, and rotating fan blades are arranged on the brackets; the vacuum pump mechanism comprises an air guide pipe arranged on the upper cover and a vacuum pump arranged at the other end of the air guide pipe; a heating unit is arranged in the cushioning shell and fixedly connected with the cushioning shell. By adopting the unique differential rotation design, the stirring and concentrating efficiency is improved, and the uniformity and stability of liquid in the concentrating process are ensured.

Description

Technical Field

[0001] The utility model relates to the field of fertilizer processing, in particular to liquid fertilizer rotary evaporation and concentration equipment. Background Art

[0002] Fertilizer concentration technology mainly removes water or other diluting components from liquid or solid fertilizers to increase the concentration of nutrients in the fertilizers. This technology helps to improve the utilization rate of fertilizers, reduce transportation and storage costs, and facilitate use. Evaporation is a common fertilizer concentration technology that heats the fertilizer solution to evaporate water, thereby increasing the concentration of nutrients in the solution. Evaporation can be carried out under normal pressure or reduced pressure, depending on the nature of the fertilizer and the desired degree of concentration. This method is suitable for a variety of fertilizers, but it may require a lot of energy and cause some environmental problems. Membrane separation technology uses special membrane materials to filter fertilizer solutions to remove water and other low molecular weight components to obtain concentrated fertilizers. This method has the advantages of low energy consumption, simple operation, and environmental protection, but it requires the selection of appropriate membrane materials and operating conditions.

[0003] At present, the prior art CN212282921U discloses a liquid fertilizer rotary evaporation concentration device, which relates to the field of fertilizer processing, including a barrel, the barrel is rotatably connected to a bracket, the top of the bracket is fixedly connected to a cover plate rotatably connected to the top of the barrel, the bottom of the cover plate is fixedly connected to a stirring shaft, the barrel includes an outer barrel, the inner barrel is fixedly connected to the inner barrel, a spiral resistance wire is fixedly connected to the outer wall of the inner barrel, a stirring blade is fixedly connected to the stirring shaft, and a straight resistance wire is arranged inside the stirring blade. In the utility model, the evaporation concentration efficiency is accelerated by synchronous heating inside and outside, and the barrel is rotatably connected to the bracket, and uniform heating is achieved by relative rotation of the barrel and the stirring shaft to improve the evaporation efficiency.

[0004] The above prior art also has the following problems:

[0005] 1. High energy consumption. Evaporating the water in fertilizers requires a lot of energy.

[0006] 2. The evaporation efficiency is low. The traditional device only uses the method of rotating the barrel, and the stirring blades do not move, resulting in low stirring efficiency.

[0007] Therefore, it is necessary to provide a liquid fertilizer rotary evaporation concentration device to solve the above-mentioned technical problems. Summary of the invention

[0008] The utility model overcomes the shortcomings of the prior art and provides a liquid fertilizer rotary evaporation concentration device;

[0009] To achieve the above object, the technical solution adopted by the utility model is: a liquid fertilizer rotary evaporation concentration device, comprising: a shell, a differential stirring mechanism arranged inside the shell, and a vacuum pump mechanism arranged outside the shell, characterized in that:

[0010] The housing comprises: a shock-absorbing shell, a motor arranged at the bottom of the inner wall of the shock-absorbing shell, and a rotating barrel arranged directly above the motor; an upper cover is arranged above the shock-absorbing shell; the motor is fixedly connected to the shock-absorbing shell, and the output end of the motor is fixedly connected to the outer surface of the bottom of the rotating barrel;

[0011] The differential stirring mechanism comprises: a planetary gear set arranged at the bottom of the inner wall of the rotating barrel, and a rotating sleeve arranged on the planetary gear set; a plurality of brackets are arranged on the rotating sleeve, and rotating blades are arranged on the brackets;

[0012] The vacuum pump mechanism comprises: an air guide pipe arranged on the upper cover, and a vacuum pump arranged at the other end of the air guide pipe;

[0013] A heating unit is arranged inside the shock-absorbing shell, and the heating unit is fixedly connected to the shock-absorbing shell.

[0014] In a preferred embodiment of the utility model, a plurality of annular grooves are provided on the inner wall of the shell, the plurality of annular grooves are distributed at equal distances, and the plurality of annular grooves coincide with the axis of the shell; a plurality of radial ball bearings are provided on the plurality of annular grooves, the outer surfaces of the plurality of radial ball bearings are sleeved with the inner surfaces of the plurality of annular grooves, and the inner surfaces of the plurality of radial ball bearings are sleeved with the outer surface of the rotating barrel; a thrust roller bearing is provided directly below the rotating barrel, and the thrust roller bearing is fixedly connected to the rotating barrel and the shock-absorbing shell, respectively.

[0015] In a preferred embodiment of the utility model, a plurality of radial roller bearings are sleeved on the connecting rod, the plurality of radial roller bearings are distributed at equal distances, the outer surfaces of the plurality of radial roller bearings are fixedly connected to the inner surface of the rotating sleeve; the inner surfaces of the plurality of radial roller bearings are fixedly connected to the outer surface of the connecting rod.

[0016] In a preferred embodiment of the utility model, a cooling pipe is provided on the vacuum pump; an air outlet is provided on the upper cover, an air intake port and an air exhaust port are provided on the vacuum pump, two ends of the air guide pipe are respectively fixedly connected to the air outlet and the air intake port; the exhaust port is fixedly connected to the cooling pipe; an ultrafiltration membrane is provided on the air outlet, and the ultrafiltration membrane is fixedly connected to the air outlet.

[0017] In a preferred embodiment of the utility model, the heating unit includes: a spiral heat-conducting pipe arranged inside the shock-absorbing shell, a heater arranged outside the shock-absorbing shell, and a liquid storage tank arranged outside the shock-absorbing shell; a heating chamber is arranged outside the liquid storage tank, and both ends of the spiral heat-conducting pipe are fixedly connected to the heater and the heating chamber respectively; the liquid storage tank is fixedly connected to the heater and the heating chamber respectively; the cooling pipe is sleeved inside the heating chamber, and the cooling pipe is fixedly connected to the heating chamber.

[0018] In a preferred embodiment of the utility model, a placement foot is provided at the bottom of the shock-absorbing shell, and a shock-absorbing gasket is provided at the bottom of the placement foot; the placement foot is fixedly connected to the shock-absorbing shell, and the shock-absorbing gasket is fixedly connected to the placement foot.

[0019] In a preferred embodiment of the utility model, the planetary gear set includes: a sun gear arranged at the bottom of the inner wall of the rotating barrel, a planet carrier arranged above the sun gear, and a ring gear arranged above the planet carrier; a planetary gear is arranged on the planet carrier, the planetary gear is rotatably connected to the planet carrier, and the planetary gear is respectively meshed with the ring gear and the sun gear; the sun gear is fixedly connected to the center of the bottom of the inner wall of the rotating barrel; the upper surface of the ring gear is fixedly connected to the bottom of the rotating sleeve.

[0020] In a preferred embodiment of the utility model, the plurality of brackets are arranged in a circular array with the rotating sleeve as the axis, the rotating sleeve is fixedly connected to the plurality of brackets, and the plurality of brackets are fixedly connected to the rotating blades.

[0021] In a preferred embodiment of the utility model, a liquid inlet is arranged on the upper cover, a sealing cover is arranged on the liquid inlet, the liquid inlet is fixedly connected to the upper cover; the sealing cover is fixedly connected to the liquid inlet.

[0022] In a preferred embodiment of the utility model, a connecting rod is provided on the planet carrier, the connecting rod is sleeved inside the rotating sleeve, and the connecting rod is fixedly connected to the upper cover.

[0023] The utility model solves the defects existing in the background technology, and has the following beneficial effects:

[0024] (1) The utility model is provided with a differential stirring mechanism, a vacuum pump and an ultrafiltration membrane. The combination of the three not only improves the evaporation and concentration efficiency of the liquid fertilizer, but also saves energy and reduces the loss of raw materials.

[0025] (2) The utility model is provided with a differential stirring mechanism. By setting a planetary gear set, the rotating barrel and the rotating fan blades can rotate in opposite directions and at differential speeds, so that the liquid can form a complex flow pattern in the rotating barrel, thereby improving the mixing and stirring efficiency of the liquid and achieving uniform heating of the liquid. Compared with traditional devices, the utility model adopts a unique differential rotation design, which not only improves the stirring and concentration efficiency, but also ensures the uniformity and stability of the liquid during the concentration process.

[0026] (3) The utility model is provided with a vacuum pump, which extracts the air in the rotating barrel through its air intake port, thereby creating a low-pressure or vacuum environment in the rotating barrel; this environment helps to lower the boiling point of the liquid, so that the evaporation and concentration of the liquid can be achieved at a lower temperature, saving energy; by continuously extracting steam, the vacuum pump ensures that the steam will not accumulate in the rotating barrel and hinder the evaporation of the liquid, greatly improving the efficiency of the concentration process, and enabling the equipment to process more liquid in a shorter time; the utility model adopts a vacuum pump decompression design to promote evaporation and concentration, improve the concentration efficiency, and save a lot of energy.

[0027] (4) The utility model is provided with an ultrafiltration membrane, which intercepts the volatilized solution during the reduced pressure evaporation process. By selecting a specific membrane material and pore size, the volatilized solution can be effectively intercepted while allowing water vapor to pass through; the utility model adopts an ultrafiltration membrane interception design to achieve effective interception of the volatilized solution, improve the concentration efficiency, and reduce the loss of raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0029] Figure 1 It is a general three-dimensional structural diagram of a preferred embodiment of the utility model;

[0030] Figure 2 It is a shell structure diagram of a preferred embodiment of the utility model;

[0031] Figure 3 It is an exploded view of the housing of a preferred embodiment of the utility model;

[0032] Figure 4 It is a structural diagram of a differential stirring mechanism of a preferred embodiment of the utility model;

[0033] Figure 5 It is a structural diagram of a planetary gear set according to a preferred embodiment of the utility model;

[0034] Figure 6 It is a structural diagram of a planet carrier of a preferred embodiment of the utility model;

[0035] In the figure: 1. shell; 2. differential stirring mechanism; 3. vacuum pump mechanism; 4. shock-absorbing shell; 5. upper cover; 6. motor; 7. rotating barrel; 8. thrust roller bearing; 9. planetary gear set; 10. rotating sleeve; 11. bracket; 12. rotating fan blade; 13. radial ball bearing; 14. sun gear; 15. planetary carrier; 16. planetary gear; 17. ring gear; 18. connecting rod; 19. air outlet; 20. liquid inlet; 21. shock-absorbing gasket; 22. heater; 23. liquid storage tank; 24. heating chamber; 25. vacuum pump. DETAILED DESCRIPTION

[0036] The present invention will now be further described in detail in conjunction with the accompanying drawings and embodiments. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0037] like Figure 1 As shown, a liquid fertilizer rotary evaporation concentration device comprises: a shell 1, a differential stirring mechanism 2 arranged inside the shell 1, and a vacuum pump mechanism 3 arranged outside the shell 1; the components work together to achieve a fast and uniform concentration process.

[0038] like Figure 2 and Figure 3 As shown, the housing 1 includes: a shock absorbing shell 4, a motor 6 arranged at the bottom of the inner wall of the shock absorbing shell 4, and a rotating barrel 7 arranged just above the motor 6; an upper cover 5 is arranged above the shock absorbing shell 4; the motor 6 is fixedly connected to the shock absorbing shell 4, and the output end of the motor 6 is fixedly connected to the outer surface of the bottom of the rotating barrel 7. The use of the shock absorbing shell 4 and the shock absorbing gasket 21 ensures the stable operation of the equipment, reduces vibration and noise, and improves the service life and working environment quality.

[0039] A number of annular grooves are arranged on the inner wall of the housing 1, and the annular grooves are distributed at equal distances, and the annular grooves coincide with the axis of the housing 1; a number of radial ball bearings 13 are arranged on the annular grooves, and the outer surfaces of the radial ball bearings 13 are sleeved with the inner surfaces of the annular grooves, and the inner surfaces of the radial ball bearings 13 are sleeved with the outer surface of the rotating barrel 7; a thrust roller bearing 8 is arranged directly below the rotating barrel 7, and the thrust roller bearing 8 is fixedly connected to the rotating barrel 7 and the shock-absorbing shell 4, respectively. Inside the housing 1, the annular grooves and the radial ball bearings 13 further enhance the stability of the rotating barrel 7. These radial ball bearings 13 are not only tightly sleeved with the outer surface of the rotating barrel 7, but also form a good fit with the inner surface of the annular groove, ensuring the stability of the rotating barrel 7 during the rotation process. In addition, the addition of the thrust roller bearing 8 provides additional support and stability for the rotating barrel 7, reduces friction and wear, and improves the service life of the equipment.

[0040] A placement foot is provided at the bottom of the shock-absorbing shell 4, and a shock-absorbing gasket 21 is provided at the bottom of the placement foot; the placement foot is fixedly connected to the shock-absorbing shell 4, and the shock-absorbing gasket 21 is fixedly connected to the placement foot.

[0041] The upper cover 5 is provided with a liquid inlet 20 , and a sealing cover is provided on the liquid inlet 20 . The liquid inlet 20 is fixedly connected to the upper cover 5 ; the sealing cover is fixedly connected to the liquid inlet 20 .

[0042] like Figure 4 As shown, the differential stirring mechanism 2 includes: a planetary gear set 9 arranged at the bottom of the inner wall of the rotating barrel 7, and a rotating sleeve 10 arranged on the planetary gear set 9; a plurality of brackets 11 are arranged on the rotating sleeve 10, and a rotating fan blade 12 is arranged on the bracket 11. The introduction of the planetary gear set 9 enables the rotating sleeve 10 to rotate at a different speed from the rotating barrel 7. The planetary gear set 9 greatly improves the mixing and stirring efficiency of the liquid fertilizer, making the concentration process more uniform and efficient. At the same time, the arrangement of the bracket 11 and the rotating fan blade 12 on the rotating sleeve 10 further enhances the stirring effect, so that the liquid fertilizer can be fully mixed and stirred.

[0043] like Figure 5 and Figure 6 As shown, the planetary gear set 9 includes: a sun gear 14 arranged at the bottom of the inner wall of the rotating barrel 7, a planet carrier 15 arranged above the sun gear 14, and a ring gear 17 arranged above the planet carrier 15; a planetary gear 16 is arranged on the planet carrier 15, the planetary gear 16 is rotatably connected to the planet carrier 15, and the planetary gear 16 is meshed with the ring gear 17 and the sun gear 14 respectively; the sun gear 14 is fixedly connected to the center of the bottom of the inner wall of the rotating barrel 7; the upper surface of the ring gear 17 is fixedly connected to the bottom of the rotating sleeve 10. The introduction of the planetary gear set 9 enables the rotating sleeve 10 to rotate at a speed and direction different from that of the rotating barrel 7. Through the differential rotation design of the planetary gear set 9, the mixing and stirring efficiency of the liquid fertilizer is greatly improved, making the concentration process more uniform and efficient.

[0044] A plurality of brackets 11 are arranged in a circular array with the rotating sleeve 10 as the axis, the rotating sleeve 10 is fixedly connected to the plurality of brackets 11, and the plurality of brackets 11 are fixedly connected to the rotating blades 12. A connecting rod 18 is provided on the planetary frame 15, the connecting rod 18 is sleeved inside the rotating sleeve 10, and the connecting rod 18 is fixedly connected to the upper cover 5. The rotating blades 12 rotate under the drive of the planetary gear set 9, and generate a strong stirring force through rotation, so that the liquid fertilizer is fully mixed and stirred, accelerating the evaporation and concentration process.

[0045] A plurality of radial roller bearings are sleeved on the connecting rod 18 , and the radial roller bearings are equidistantly distributed. The outer surfaces of the radial roller bearings are fixedly connected to the inner surface of the rotating sleeve 10 ; the inner surfaces of the radial roller bearings are fixedly connected to the outer surface of the connecting rod 18 .

[0046] The vacuum pump mechanism 3 includes: an air duct arranged on the upper cover 5, and a vacuum pump 25 arranged at the other end of the air duct; through the operation of the vacuum pump 25, the device can create a low-pressure or vacuum environment in the rotating barrel 7, which helps to lower the boiling point of the liquid, so that the evaporation and concentration of the liquid can be achieved at a lower temperature, saving energy, thereby accelerating the evaporation and concentration process of the liquid fertilizer.

[0047] A heating unit is disposed inside the shock-absorbing shell 4 , and the heating unit is fixedly connected to the shock-absorbing shell 4 .

[0048] The vacuum pump 25 is provided with a cooling pipe; the upper cover 5 is provided with an air outlet 19, the vacuum pump 25 is provided with an air intake port and an air exhaust port, and both ends of the air guide pipe are fixedly connected to the air outlet 19 and the air intake port respectively; the exhaust port is fixedly connected to the cooling pipe.

[0049] An ultrafiltration membrane is provided on the gas outlet 19, and the ultrafiltration membrane is fixedly connected to the gas outlet 19; through the selection of specific membrane materials and pore sizes, the volatile solution can be effectively retained while allowing water vapor to pass through, thereby achieving effective interception of the volatile solution, improving the concentration efficiency, and reducing the loss of raw materials.

[0050] The heating unit includes: a spiral heat pipe arranged inside the shock-absorbing shell 4, a heater 22 arranged outside the shock-absorbing shell 4, and a liquid storage tank 23 arranged outside the shock-absorbing shell 4; a heating chamber 24 is arranged outside the liquid storage tank 23, and both ends of the spiral heat pipe are fixedly connected to the heater 22 and the heating chamber 24 respectively; the liquid storage tank 23 is fixedly connected to the heater 22 and the heating chamber 24 respectively; the cooling pipe is sleeved inside the heating chamber 24, and the cooling pipe is fixedly connected to the heating chamber 24. Through the coordinated work of the spiral heat pipe, the heater and the liquid storage tank, the equipment can heat the liquid fertilizer to the required temperature in a short time, thereby further accelerating the evaporation process. This heating method is not only highly efficient, but also can ensure uniform heating of the liquid fertilizer, avoiding the occurrence of local overheating.

[0051] When the utility model is used, the liquid fertilizer to be concentrated is added through the liquid inlet 20 of the upper cover 5; the sealing cover is covered to seal the liquid inlet 20; and the heating unit is started. The heater 22 heats the liquid fertilizer in the rotating barrel 7 through the spiral heat pipe. The motor 6 is started, and the motor 6 drives the rotating barrel 7 to start rotating. The rotating barrel 7 drives the planetary gear set 9 on the rotating barrel 7 to move, and the rotating sleeve 10 on the planetary gear set 9 drives the rotating blades 12 to perform differential movement in the opposite direction to the rotating barrel 7 to ensure that the liquid is evenly heated and mixed. Start the vacuum pump 25, and start to extract the air in the rotating barrel 7 through the air duct. When the required pressure is reached in the rotating barrel 7, the vacuum pump 25 will continue to run to maintain this pressure. Under low pressure, the boiling point of the water in the liquid fertilizer is reduced, and the water evaporates into water vapor. The water vapor will be extracted by the vacuum pump 25 through the air duct and cooled by the cooling pipe. The liquefaction of the water vapor in the cooling pipe will release a lot of heat, and the heat will be absorbed by the coolant in the heating chamber 24. The coolant that absorbs a certain amount of heat passes through the liquid storage tank 23 to the heating unit. The heating unit heats the coolant to a specified temperature. The heated coolant enters the spiral heat conducting pipe to heat the liquid fertilizer in the rotating sleeve 10. The ultrafiltration membrane set on the air outlet intercepts the volatilized solution, reducing the loss of raw materials. The filtered concentrated liquid can be collected by an appropriate collection container.

[0052] The above is based on the ideal embodiment of the utility model. Through the above description, relevant personnel can make various changes and modifications without deviating from the technical concept of this utility model. The technical scope of this utility model is not limited to the content in the specification, and the technical scope must be determined according to the scope of the claims.

Claims

1. A liquid fertilizer rotary evaporation concentration device, comprising: A shell (1), a differential stirring mechanism (2) arranged inside the shell (1), and a vacuum pump mechanism (3) arranged outside the shell (1), characterized in that: The housing (1) comprises: a shock-absorbing outer shell (4), a motor (6) arranged at the bottom of the inner wall of the shock-absorbing outer shell (4), and a rotating barrel (7) arranged directly above the motor (6); an upper cover (5) is arranged above the shock-absorbing outer shell (4); the motor (6) is fixedly connected to the shock-absorbing outer shell (4), and an output end of the motor (6) is fixedly connected to the outer surface of the bottom of the rotating barrel (7); The differential stirring mechanism (2) comprises: a planetary gear set (9) arranged at the bottom of the inner wall of the rotating barrel (7), and a rotating sleeve (10) arranged on the planetary gear set (9); a plurality of brackets (11) are arranged on the rotating sleeve (10), and a rotating fan blade (12) is arranged on the bracket (11); The vacuum pump mechanism (3) comprises: an air guide pipe arranged on the upper cover (5), and a vacuum pump (25) arranged at the other end of the air guide pipe; A heating unit is arranged inside the shock-absorbing shell (4), and the heating unit is fixedly connected to the shock-absorbing shell (4).

2. The liquid fertilizer rotary evaporation concentration equipment according to claim 1, characterized in that: The inner wall of the shell (1) is provided with a plurality of annular grooves, the plurality of annular grooves are distributed at equal distances, and the plurality of annular grooves coincide with the axis of the shell (1); the plurality of annular grooves are provided with a plurality of radial ball bearings (13), the outer surfaces of the plurality of radial ball bearings (13) are sleeved with the inner surfaces of the plurality of annular grooves, and the inner surfaces of the plurality of radial ball bearings (13) are sleeved with the outer surface of the rotating barrel (7); a thrust roller bearing (8) is provided directly below the rotating barrel (7), and the thrust roller bearing (8) is fixedly connected to the rotating barrel (7) and the shock absorbing shell (4), respectively.

3. The liquid fertilizer rotary evaporation concentration equipment according to claim 1, characterized in that: The vacuum pump (25) is provided with a cooling pipe; the upper cover (5) is provided with an air outlet (19); the vacuum pump (25) is provided with an air intake port and an air exhaust port; the two ends of the air guide pipe are respectively fixedly connected to the air outlet (19) and the air intake port; the air exhaust port is fixedly connected to the cooling pipe; the air outlet (19) is provided with an ultrafiltration membrane, and the ultrafiltration membrane is fixedly connected to the air outlet (19).

4. The liquid fertilizer rotary evaporation concentration equipment according to claim 3, characterized in that: The heating unit comprises: a spiral heat-conducting pipe arranged inside the shock-absorbing shell (4), a heater (22) arranged outside the shock-absorbing shell (4), and a liquid storage tank (23) arranged outside the shock-absorbing shell (4); a heating chamber (24) is arranged outside the liquid storage tank (23), and two ends of the spiral heat-conducting pipe are respectively fixedly connected to the heater (22) and the heating chamber (24); the liquid storage tank (23) is respectively fixedly connected to the heater (22) and the heating chamber (24); the cooling pipe is sleeved inside the heating chamber (24), and the cooling pipe is fixedly connected to the heating chamber (24).

5. The liquid fertilizer rotary evaporation concentration equipment according to claim 1, characterized in that: A placement foot is provided at the bottom of the shock-absorbing shell (4), and a shock-absorbing pad (21) is provided at the bottom of the placement foot; the placement foot is fixedly connected to the shock-absorbing shell (4), and the shock-absorbing pad (21) is fixedly connected to the placement foot.

6. The liquid fertilizer rotary evaporation concentration equipment according to claim 1, characterized in that: The planetary gear set (9) comprises: a sun gear (14) arranged at the bottom of the inner wall of the rotating barrel (7), a planet carrier (15) arranged above the sun gear (14), and a ring gear (17) arranged above the planet carrier (15); a planet gear (16) is arranged on the planet carrier (15), the planet gear (16) is rotatably connected to the planet carrier (15), and the planet gear (16) is meshed with the ring gear (17) and the sun gear (14) respectively; the sun gear (14) is fixedly connected to the center of the bottom of the inner wall of the rotating barrel (7); and the upper surface of the ring gear (17) is fixedly connected to the bottom of the rotating sleeve (10).

7. The liquid fertilizer rotary evaporation concentration equipment according to claim 6, characterized in that: A connecting rod (18) is provided on the planet carrier (15), the connecting rod (18) is sleeved inside the rotating sleeve (10), and the connecting rod (18) is fixedly connected to the upper cover (5).

8. The liquid fertilizer rotary evaporation concentration equipment according to claim 7, characterized in that: A plurality of radial roller bearings are sleeved on the connecting rod (18), the plurality of radial roller bearings are distributed at equal distances, the outer surfaces of the plurality of radial roller bearings are fixedly connected to the inner surface of the rotating sleeve (10); and the inner surfaces of the plurality of radial roller bearings are fixedly connected to the outer surface of the connecting rod (18).

9. The liquid fertilizer rotary evaporation concentration equipment according to claim 1, characterized in that: The plurality of brackets (11) are arranged in a circular array with the rotating sleeve (10) as the axis; the rotating sleeve (10) is fixedly connected to the plurality of brackets (11); and the plurality of brackets (11) are fixedly connected to the rotating blades (12).

10. The liquid fertilizer rotary evaporation concentration equipment according to claim 1, characterized in that: The upper cover (5) is provided with a liquid inlet (20), and a sealing cover is provided on the liquid inlet (20); the liquid inlet (20) is fixedly connected to the upper cover (5); and the sealing cover is fixedly connected to the liquid inlet (20).

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