Reaction kettle for preparing water-soluble fertilizer

Abstract

The invention relates to the technical field of fertilizer preparation, in particular to a reaction kettle for preparing a water-soluble fertilizer. The reaction kettle comprises a kettle body for raw material reaction and a kettle cover detachably mounted at the upper end of the kettle body, the reaction kettle for preparing the water-soluble fertilizer further comprises a stirring sample introduction group, the stirring sample introduction group is detachably connected to the kettle cover, and the stirring sample introduction group comprises a rotary sample introduction part which is detachably connected to the kettle cover. The sampling group is matched with the rotary sample introduction part and the stirring sample introduction part, so that the equipment mounting operation is reduced during sampling, raw materials at different depths in the kettle body are sampled at the same time in one sampling process, the frequency of raw material sampling operation is effectively reduced, the sampling efficiency is improved, and the sampling cost is reduced. And the sampling of the raw materials at different depths is completed by the cooperation of a plurality of sampling points, so that the multi-point sampling function at different positions at the same depth is realized, and the accuracy of detecting the mixing degree of the stirred raw materials is improved.

Description

Technical Field

[0001] The invention relates to the technical field of fertilizer preparation, in particular to a reactor used for preparing water-soluble fertilizer. Background Art

[0002] The water-soluble fertilizer reactor is a core chemical reaction equipment specifically used for the production of water-soluble fertilizers. It is a key container for mixing, dissolving, chemically reacting, chelating, and maturing various raw materials under controlled conditions.

[0003] The mixing reaction of water-soluble fertilizer raw materials is usually carried out by stirring, which not only accelerates the mixing of raw materials but also avoids precipitation during the chelation reaction, the core technology for producing high-quality water-soluble fertilizers. In order to ensure the high quality of water-soluble fertilizers, raw material sampling is the core link of quality control.

[0004] In the existing technology, when sampling the raw materials inside the reactor, the sampling port on the reactor is usually opened first when the reactor is stable, and then a glass tube or stainless steel tube is inserted into the liquid. The flow is then controlled by a pump or valve and sampling is performed. In order to ensure the accuracy of the sampling test results, sampling is required at different positions, and the sampling port is closed after the sampling is completed. However, the existing sampling steps can only sample from one sampling point at a time, and multiple samples require multiple sampling operations, which reduces the efficiency of sample sampling. In addition, the sampling port has a small aperture and a fixed position, which makes the sampling area small. The positions of multiple samples do not change much, and the sampling repetition is high, resulting in insufficient sample representativeness.

[0005] Therefore, there is an urgent need to provide a reactor that can improve sampling efficiency and increase sampling positions. Summary of the Invention

[0006] Based on this, it is necessary to provide a reactor for preparing water-soluble fertilizers, aiming to solve the problems caused by the existing technology when preparing water-soluble fertilizers.

[0007] In order to achieve the above object, the present invention adopts the following technical solution: a reactor for preparing water-soluble fertilizer includes: a reactor body for raw material reaction and a reactor cover detachably installed on the upper end of the reactor body.

[0008] The reactor for preparing water-soluble fertilizer also includes a stirring and sampling group, which is detachably connected to the reactor cover. The stirring and sampling group includes a rotating sampling part detachably connected to the reactor cover, and the rotating sampling part is connected to a sealing part and a plurality of stirring and sampling parts evenly distributed from top to bottom.

[0009] The rotating sample injection part includes a rotating rod arranged in the middle of the kettle body and capable of rotation. A plurality of vertical accommodating cavities are evenly opened in the circumference of the rotating rod. The depths of the plurality of accommodating cavities increase along the spiral path. An injection hole is opened on the cavity wall of the bottom of each accommodating cavity away from the axis of the rotating rod.

[0010] The stirring and sampling part includes a plurality of connecting tubes evenly distributed circumferentially and connected to the rotating rod, one of the connecting tubes is connected to the corresponding sampling hole, two guide holes 1 are symmetrically opened on the wall of the connecting tube, an inclined stirring plate is installed at one end of the connecting tube away from the rotating rod, a plurality of linearly distributed guide holes 2 are opened in the middle of the stirring plate, and a guide channel is opened between the guide hole 2 and the connecting tube.

[0011] The reactor for preparing water-soluble fertilizer also includes a sampling group, which is connected to the upper end of the rotating sampling part. The sampling group includes multiple liquid inlet parts that are evenly distributed circumferentially and respectively connected to the top walls of the corresponding accommodating cavities. The upper ends of the liquid inlet parts are detachably connected to a transition container for temporarily storing samples, the transition container is detachably connected to a collecting part, and the multiple transition containers are commonly detachably connected to a vacuum ventilation part.

[0012] Preferably, the rotating sample feeding part further comprises a cover plate which is sleeved on the rotating rod and rotatably connected to the rotating rod via a bearing, and the cover plate is detachably connected to the middle portion of the kettle cover.

[0013] Preferably, the sealing portion includes a connecting ring arranged above the rotating rod, and a plurality of lifting rods are provided at the lower end of the connecting ring. The lower ends of the lifting rods slide through the corresponding top walls of the accommodating cavities and are located in the corresponding accommodating cavities. Sealing rings are laid at the lifting rods and the top walls of the accommodating cavities. The lengths of the plurality of lifting rods gradually increase along the spiral path and correspond one-to-one to the depths of the plurality of accommodating cavities. A sealing block for sealing the injection hole is installed at the lower end of the lifting rod, and a sealing gasket is laid on the sealing block.

[0014] Preferably, the liquid inlet portion includes a delivery pipe installed through the top wall of the corresponding accommodating cavity, and a liquid inlet pipe is detachably installed on the upper end of the delivery pipe, and a valve 1 is installed on the liquid inlet pipe.

[0015] Preferably, the collecting part includes two connecting tubes symmetrically arranged on one side of the transition container, the connecting tubes are detachably connected to the transition container, a valve 2 is installed on the connecting tube, and a U-shaped through tube is detachably installed on one end of the two connecting tubes away from the transition container, a bottle holding module is installed on the lower horizontal section of the U-shaped through tube, and a sampling bottle is detachably connected to the lower end of the bottle holding module.

[0016] Preferably, the vacuum ventilation part includes a plurality of ventilation pipes uniformly distributed circumferentially, and the ventilation pipes are detachably connected to the upper ends of a plurality of transition containers by bolts, and the ends of the plurality of ventilation pipes away from the transition containers are jointly installed and connected to an air collecting frame, and the upper end of the air collecting frame is installed and connected to a flow pipe.

[0017] Preferably, there is an angle between the trajectory of the plurality of guide holes 2 distributed in the straight line direction and the length direction of the stirring plate.

[0018] Preferably, the stirring plate is further provided with a plurality of evenly distributed guide holes three.

[0019] Preferably, the plurality of guide channels have the same structure but different lengths, and the plurality of guide channels are distributed along the width direction of the stirring plate.

[0020] Preferably, the rotating rod is rotated by a driving group.

[0021] Preferably, the driving group includes a transmission member detachably connected to the rotating rod, and the upper end of the transmission member is fixedly connected to the driving module.

[0022] Preferably, the transmission member is composed of a mounting ring, a plurality of transmission rods and a transmission plate, two ends of the plurality of transmission rods are fixedly connected to the mounting ring and the transmission plate respectively, and the mounting ring is detachably mounted on the rotating rod.

[0023] Preferably, a plurality of feed pipes and exhaust pipes are installed on the kettle cover.

[0024] Preferably, a discharge pipe is installed at the lower end of the kettle body, and a control valve is installed on the discharge pipe.

[0025] In summary, the present invention includes the following beneficial technical effects: 1. The sampling group adopted in the present invention cooperates with the rotating sampling part and the stirring sampling part, which reduces the operation of equipment installation during sampling, and realizes the simultaneous sampling of raw materials at different depths in the kettle body during one sampling process, effectively reducing the number of raw material sampling operations and improving the sampling efficiency. The sampling of raw materials at different depths is completed by the cooperation of multiple sampling points, thereby realizing the multi-point sampling function at different positions at the same depth, effectively increasing the sampling positions of raw materials in the kettle body, and improving the accuracy of detecting the degree of mixing of raw materials after stirring.

[0026] 2. The rotating sample feeding part and the stirring sample feeding part used in the present invention can also stir and mix raw materials of different depths, increase the flow path of the raw materials, and effectively improve the effect of raw material mixing. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0028] Figure 1 Shown is a schematic diagram of the three-dimensional structure of the present invention.

[0029] Figure 2 The figure shows the three-dimensional structure of the stirring and sampling group and the sampling group of the present invention.

[0030] Figure 3 A front view of the present invention is shown.

[0031] Figure 4 Shown Figure 3 Cross-sectional view of AA in the figure.

[0032] Figure 5 A first perspective structural schematic diagram of the connecting ring, sealing block and sealing part of the present invention is shown.

[0033] Figure 6 A second perspective structural schematic diagram of the connecting ring, sealing block and sealing part of the present invention is shown.

[0034] Figure 7 The figure shows a schematic structural diagram of the sealing portion of the present invention.

[0035] Figure 8 The schematic diagram shows the structure of the partial rotating sample injection part, the partial sealing part and the stirring sample injection part of the present invention.

[0036] Figure 9 A schematic structural diagram of the sampling group of the present invention is shown.

[0037] The above drawings include the following reference numerals: 1, kettle body; 10, discharge pipe; 11, control valve; 2, kettle cover; 20, feed pipe; 21, exhaust pipe; 3, stirring and sampling group; 30, rotating sampling part; 300, rotating rod; 301, accommodating cavity; 302, sampling hole; 303, cover plate; 31, sealing part; 310, connecting ring; 311, lifting rod; 312, sealing block; 32, stirring and sampling part; 320, connecting pipe; 321, diversion hole 1; 322, stirring plate; 323, diversion hole 2; 324, diversion Channel; 325, diversion hole three; 4, sampling group; 40, liquid inlet; 400, delivery pipe; 401, liquid inlet pipe; 402, valve one; 41, transition container; 42, collecting part; 420, connecting pipe; 421, valve two; 422, U-shaped pipe; 423, bottle clamping module; 424, sampling bottle; 43, vacuum ventilation part; 430, ventilation pipe; 431, gas collecting frame; 432, circulation pipe; 5, driving group; 50, transmission part; 500, mounting ring; 501, transmission rod; 502, transmission plate; 51, driving module. DETAILED DESCRIPTION

[0038] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0039] See Figure 1 、 Figure 3 and Figure 4 The reactor for preparing water-soluble fertilizer includes a reactor body 1 for raw material reaction and a reactor cover 2 detachably mounted on the upper end of the reactor body 1 by bolts; a plurality of feed pipes 20 and an exhaust pipe 21 are mounted on the reactor cover 2; a discharge pipe 10 is mounted on the lower end of the reactor body 1, and a control valve 11 is mounted on the discharge pipe 10.

[0040] During specific operation, the kettle body 1 is installed in the working position, the control valve 11 is initially closed, and then the kettle cover 2 is installed on the kettle body 1 by bolts. Then, the required raw materials are fed into the kettle body 1 from the feed pipe 20, and then the feed pipe 20 is sealed.

[0041] See Figure 1 、 Figure 2 、 Figure 4 and Figure 5 The reactor for preparing water-soluble fertilizer also includes a stirring and sampling group 3, which is detachably connected to the reactor cover 2. The stirring and sampling group 3 includes a rotating sampling part 30 that is detachably connected to the reactor cover 2. The rotating sampling part 30 includes a rotating rod 300 arranged in the middle of the reactor body 1 and rotatable. A plurality of vertical accommodating cavities 301 are evenly opened in the circumference of the rotating rod 300. An injection hole 302 is opened on the cavity wall of the bottom of each accommodating cavity 301 away from the axis of the rotating rod 300. The rotating sampling part 30 also includes a cover plate 303 that is sleeved on the rotating rod 300 and rotatably connected to the rotating rod 300 through a bearing. The cover plate 303 is detachably connected to the middle of the reactor cover 2 by bolts.

[0042] See Figure 2 、 Figure 5 and Figure 8The rotating sample introduction part 30 is connected to a sealing part 31 and a plurality of stirring sample introduction parts 32 evenly distributed from top to bottom. The stirring sample introduction part 32 includes a plurality of connecting tubes 320 evenly distributed circumferentially and connected to the rotating rod 300 by welding, one of the connecting tubes 320 is connected to the corresponding sample introduction hole 302, and two guide holes 1 321 are symmetrically opened on the tube wall of the connecting tube 320. An inclined stirring plate 322 is installed at one end of the connecting tube 320 away from the rotating rod 300, and a plurality of linearly distributed guide holes 2 323 are opened in the middle of the stirring plate 322. A guide channel 324 is opened between the guide hole 2 323 and the connecting tube 320, and a plurality of evenly distributed guide holes 3 325 are also opened on the stirring plate 322.

[0043] See Figure 1 and Figure 4 , the rotating rod 300 is rotated by the driving group 5; the driving group 5 includes a transmission member 50 detachably connected to the rotating rod 300, and the upper end of the transmission member 50 is fixedly connected to the driving module 51; the transmission member 50 is composed of a mounting ring 500, a plurality of transmission rods 501 and a transmission plate 502, and the ends of the plurality of transmission rods 501 are respectively fixedly connected to the mounting ring 500 and the transmission plate 502, and the mounting ring 500 is detachably mounted on the rotating rod 300 by bolts.

[0044] During specific operation, in the initial state, the sealing portion 31 seals the multiple sampling holes 302. After the raw materials enter the kettle body 1, the driving module 51 is started. The driving module 51 is composed of an existing driving motor and a transmission shaft. The driving module 51 drives the multiple transmission rods 501 to rotate through the transmission plate 502. The multiple transmission rods 501 drive the rotating rod 300 to rotate through the mounting ring 500. The rotating rod 300 drives the multiple stirring plates 322 of different heights to rotate through the multiple connecting pipes 320, thereby achieving stirring and mixing of the raw materials at different depths in the kettle body 1. When the stirring plate 322 stirs the raw materials, the multiple guide holes 3 325, the multiple guide holes 2 323 and the guide hole 1 321 on the connecting pipe 320 on the stirring plate 322 guide the raw materials, thereby increasing the flow path of the raw materials during stirring, thereby improving the stirring effect of the raw materials. During the stirring stage, the sealing portion 31 can prevent the unstirred raw materials from entering the corresponding accommodating cavity 301 through the multiple sampling holes 302, thereby avoiding affecting the sampling results.

[0045] See Figure 1 、 Figure 2 、 Figure 4 and Figure 9The reactor for preparing water-soluble fertilizer also includes a sampling group 4, which is connected to the upper end of the rotating sampling part 30. The sampling group 4 includes a plurality of liquid inlet parts 40 that are evenly distributed circumferentially and respectively connected to the top walls of the corresponding accommodating cavities 301. The upper end of the liquid inlet part 40 is detachably connected to a transition container 41 for temporarily storing samples by bolts, and the transition container 41 is detachably connected to a collecting part 42 by bolts. A vacuum vent 43 is detachably connected to the plurality of transition containers 41 by bolts.

[0046] During specific operation, in the initial state, the sampling group 4 is installed on the kettle cover 2 along with the rotating sampling part 30, which reduces the steps of installing the sampling group 4 when sampling after stirring, effectively reducing the sampling operation steps. When the raw materials in the kettle body 1 are stirred, the sampling group 4 rotates simultaneously with the rotating sampling part 30.

[0047] See Figure 2 and Figure 9 The vacuum ventilation portion 43 includes a plurality of ventilation pipes 430 uniformly distributed circumferentially, and the ventilation pipes 430 are detachably connected to the upper ends of the plurality of transition containers 41 by bolts. The ends of the plurality of ventilation pipes 430 away from the transition container 41 are installed together and connected to an air collecting frame 431, and the upper end of the air collecting frame 431 is installed and connected to a flow pipe 432.

[0048] During specific operation, after the raw materials in the kettle body 1 are stirred for a period of time, the existing vacuum pump and the circulation pipe 432 are detachably installed.

[0049] See Figure 2 and Figure 9 The liquid inlet portion 40 includes a delivery pipe 400 installed on the top wall of the corresponding accommodating cavity 301. The upper end of the delivery pipe 400 is detachably mounted with a liquid inlet pipe 401 by bolts, and a valve 402 is installed on the liquid inlet pipe 401.

[0050] See Figure 2 and Figure 9 The collecting part 42 includes two connecting pipes 420 symmetrically arranged on one side of the transition container 41. The connecting pipe 420 is detachably connected to the transition container 41 by bolts. A valve 2 421 is installed on the connecting pipe 420. The ends of the two connecting pipes 420 away from the transition container 41 are detachably installed with a U-shaped through pipe 422 by bolts. A bottle clamping module 423 is installed on the horizontal section of the lower side of the U-shaped through pipe 422. The bottle clamping module 423 is an existing bottle mouth connector for detachably connecting a sampling bottle. The bottle clamping module 423 is connected to the U-shaped through pipe 422. The lower end of the bottle clamping module 423 is detachably connected to the sampling bottle 424 by threaded connection or clamping.

[0051] During specific operation, after the stirring of the raw materials in the kettle body 1 is completed, multiple valves 402 are opened. Valve 1 402 and valve 2 421 are existing sealing valves, which can be manual or electric. Then the vacuum pump is started to extract the air in the circulation pipe 432 to form a negative pressure environment. The circulation pipe 432 is connected to the air collecting frame 431, the ventilation pipe 430, the transition container 41, and the delivery pipe 400, so that the entire vacuum ventilation part 43, the transition container 41 and the liquid inlet part 40 are in a negative pressure environment.

[0052] See Figure 5 、 Figure 6 and Figure 7 The depths of the multiple accommodating cavities 301 increase gradually along the spiral path. The sealing portion 31 includes a connecting ring 310 arranged above the rotating rod 300. The lower end of the connecting ring 310 is provided with multiple lifting rods 311. The lower ends of the lifting rods 311 slide through the top walls of the corresponding accommodating cavities 301 and are located in the corresponding accommodating cavities 301. The lengths of the multiple lifting rods 311 gradually increase along the spiral path and correspond one-to-one to the depths of the multiple accommodating cavities 301. The lower ends of the lifting rods 311 are provided with sealing blocks 312 for sealing the injection holes 302.

[0053] See Figure 8 The trajectories of the plurality of guide holes 323 distributed in the straight line direction have an angle with the length direction of the stirring plate 322 ; the plurality of guide channels 324 have the same structure but different lengths, and the plurality of guide channels 324 are distributed along the width direction of the stirring plate 322 .

[0054] When working, the connecting ring 310 is pulled upward while the vacuum pump is started, and the connecting ring 310 drives the multiple lifting rods 311 to rise. The lifting rods 311 and the top wall of the accommodating cavity 301 are provided with sealing rings. The multiple lifting rods 311 drive the multiple corresponding sealing blocks 312 to rise and release the seals of the corresponding injection holes 302, so that the connecting pipes 320 connected to the corresponding injection holes 302 and the multiple guide channels 324 on the stirring plate 322 at different heights are connected to the accommodating cavity 301, and sealing pads are laid on the sealing blocks 312 to improve the sealing effect of the injection holes 302. The depth of the multiple accommodating cavities 301 is along the The spiral path increases gradually, so that the raw materials of different depths after stirring can be accommodated. Then, the multiple delivery pipes 400 in the negative pressure environment simultaneously absorb the air in the multiple accommodating cavities 301, and the accommodating cavity 301 absorbs the connecting pipe 320 through the sampling hole 302. The connecting pipe 320 absorbs the raw materials stirred in this area through the guide hole 1 321. At the same time, the connecting pipe 320 absorbs the multiple guide channels 324, and the multiple guide channels 324 absorb the stirred raw materials through the multiple guide holes 2 323 used for guiding the raw materials during stirring. The multiple guide holes 2 323 are linearly distributed and located at the stirring area. Different areas of the mixing plate can realize the sampling of raw materials in different areas at the same depth, which effectively increases the sampling points of the raw materials in a sampling process. The mixing of raw materials at multiple sampling points can effectively improve the accuracy of the detection of the mixing degree of the raw materials after stirring. The raw materials sampled at multiple points enter the corresponding receiving cavity 301 at the same time, and then enter the corresponding transition container 41 through the corresponding delivery pipe 400. Then, the multiple valves 402 are closed and the vacuum pump is stopped. Then, the multiple valves 421 are opened, so that the transition container 41 is connected with the corresponding connecting pipe 420 and the U-shaped through pipe 422. The multiple transition containers 4 1. The raw materials in the bottle flow into the bottle card module 423 through the connecting pipe 420 located at the lower side and enter the sampling bottle 424. When all the raw materials enter the sampling bottle, the multiple valves 421 are closed, and the multiple sampling bottles 424 are separated from the corresponding bottle card modules 423 to realize the function of raw material sampling. In one sampling operation, raw materials of different depths can be sampled at the same time, and multiple groups of different samples can be obtained, which effectively reduces the number of raw material sampling operations and improves the efficiency of raw material sampling. Raw material samples of different depths can be obtained in one sampling, further improving the accuracy of the detection of the mixing degree of the raw materials after stirring.

[0055] After the raw material sampling and testing is completed, if the test results do not meet the standards, continue stirring and sampling testing until the test results meet the standards, then open the control valve 11, which is an existing sealing valve, and the mixed raw materials are discharged through the discharge pipe 10, and the mixing is completed.

[0056] In the description of the embodiments of the present invention, it should be noted that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "top", "bottom", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0057] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0058] The embodiments of this specific implementation method are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A reactor for preparing water-soluble fertilizers, comprising a reactor body and a reactor cover, characterized in that: A stirring and sampling group is connected to the kettle cover, and the stirring and sampling group includes a rotating sampling part connected to the kettle cover, the rotating sampling part is connected to a sealing part and a plurality of stirring and sampling parts distributed from top to bottom; The rotating sample injection part includes a rotating rod disposed in the middle of the kettle body and rotatable, with a plurality of accommodating cavities circumferentially formed in the rotating rod. The depths of the plurality of accommodating cavities increase along a spiral path, and an injection hole is formed on the cavity wall of the bottom of each accommodating cavity away from the axis of the rotating rod; The stirring and sampling portion includes a plurality of connecting tubes circumferentially connected to the rotating rod, one of which is connected to the corresponding sampling hole, two first guide holes symmetrically opened on the wall of the connecting tube, an inclined stirring plate is installed at the end of the connecting tube away from the rotating rod, a plurality of linearly distributed second guide holes are opened in the middle of the stirring plate, and a guide channel is opened between the second guide hole and the connecting tube; The sampling group is connected to the upper end of the rotating sampling part. The sampling group includes multiple liquid inlet parts respectively connected to the top walls of the corresponding accommodating cavities. The upper ends of the liquid inlet parts are connected to a transition container, the transition container is connected to a collecting part, and the multiple transition containers are commonly connected to a vacuum ventilation part.

2. The reactor for preparing water-soluble fertilizer according to claim 1, wherein: The rotating sample feeding part also includes a cover plate which is sleeved on the rotating rod and rotatably connected to the rotating rod through a bearing, and the cover plate is detachably connected to the middle part of the kettle cover.

3. The reactor for preparing water-soluble fertilizer according to claim 1, wherein: The sealing portion includes a connecting ring arranged above the rotating rod, and a plurality of lifting rods are provided at the lower end of the connecting ring. The lower ends of the lifting rods slide through the corresponding top walls of the accommodating cavities and are located in the corresponding accommodating cavities. Sealing rings are laid at the lifting rods and the top walls of the accommodating cavities. The lengths of the plurality of lifting rods gradually increase along the spiral path and correspond one-to-one to the depths of the plurality of accommodating cavities. A sealing block for sealing the sampling hole is installed at the lower end of the lifting rod, and a sealing gasket is laid on the sealing block.

4. The reactor for preparing water-soluble fertilizer according to claim 1, wherein: The liquid inlet portion includes a delivery pipe installed on the top wall of the corresponding accommodating cavity, and a liquid inlet pipe is detachably installed on the upper end of the delivery pipe, and a valve 1 is installed on the liquid inlet pipe.

5. The reactor for preparing water-soluble fertilizer according to claim 1, wherein: The collecting part includes two connecting pipes symmetrically arranged on one side of the transition container. The connecting pipes are detachably connected to the transition container. A second valve is installed on the connecting pipe. A U-shaped through pipe is detachably installed on one end of the two connecting pipes away from the transition container. A bottle holding module is installed on the horizontal section on the lower side of the U-shaped through pipe. The lower end of the bottle holding module is detachably connected to a sampling bottle.

6. The reactor for preparing water-soluble fertilizer according to claim 1, wherein: The vacuum ventilation part includes a plurality of ventilation pipes evenly distributed circumferentially, and the ventilation pipes are detachably connected to the upper ends of a plurality of transition containers by bolts. The ends of the plurality of ventilation pipes away from the transition containers are jointly installed and connected to an air collecting frame, and the upper end of the air collecting frame is installed and connected to a flow pipe.

7. The reactor for preparing water-soluble fertilizer according to claim 1, wherein: There is an angle between the tracks of the plurality of guide holes 2 distributed in the straight line direction and the length direction of the stirring plate.

8. The reactor for preparing water-soluble fertilizer according to claim 1, wherein: The stirring plate is also provided with a plurality of evenly distributed guide holes 3.

9. The reactor for preparing water-soluble fertilizer according to claim 1, wherein: The plurality of guide channels have the same structure but different lengths, and the plurality of guide channels are distributed along the width direction of the stirring plate.

10. The reactor for preparing water-soluble fertilizer according to claim 1, characterized in that: The rotating rod is rotated by a driving group.

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