Granulator for preparing saline-alkali soil improver and working method

Abstract

The present invention belongs to the technical field of fertilizer manufacturing, specifically relates to a soil conditioner, and particularly relates to a granulator for preparing a saline-alkali land conditioner and a working method, including: a housing, and a granulating device and a lifting device arranged in the housing; the granulating device is arranged in the housing; the lifting device is arranged in the housing, and the lifting device is arranged below the granulating device; the granulating device is adapted to prepare the raw materials entering the housing into granular form; the lifting device is adapted to clean the through holes on the screen plate of the granulating device and the raw materials remaining on the top surface of the screen plate, thereby realizing the cleaning of the raw materials remaining in the through holes and the raw materials remaining on the top surface of the screen plate, and avoiding the influence of the remaining raw materials on the particle preparation.

Description

Technical Field

[0001] The present invention belongs to the technical field of fertilizer manufacturing, specifically relates to soil conditioners, and particularly relates to a granulator and a working method for preparing a saline-alkali land conditioner. Background Art

[0002] During the preparation of saline-alkali land conditioners, a granulator is required for production, which is easy to store, transport and mechanically apply. After application, it can significantly reduce the soil pH, increase the soil moisture content, promote the formation of aggregates, reduce irrigation requirements and secondary fertilization costs. However, during the preparation of saline-alkali land conditioners by the granulator, due to the roller pressing of the raw materials by the pressure roller, raw materials will remain on the screen plate, and raw materials will remain in the through holes of the screen plate. The raw materials remaining on the screen plate will cause the force of the pressure roller to press the raw materials into the through holes to decrease, resulting in the influence on the shape and size of the particles and affecting the quality. The raw materials remaining in the through holes will lead to the decrease in the preparation efficiency of the granulated particles and the influence on the shape and size of the particles, affecting the quality.

[0003] Therefore, due to the influence of the raw materials remaining on the screen plate on the particle preparation efficiency and quality, it is necessary to design a granulator and a working method for preparing a saline-alkali land conditioner.

[0004] It should be noted that the above information disclosed in this background art section is only used to understand the background art of the concept of this application. Therefore, the above description is not considered as information of the prior art. Summary of the Invention

[0005] The embodiments of the present disclosure at least provide a granulator and a working method for preparing a saline-alkali land conditioner.

[0006] In a first aspect, the embodiments of the present disclosure provide a granulator for preparing a saline-alkali land conditioner, including:

[0007] A housing, and a granulating device and a lifting device disposed in the housing;

[0008] The granulating device is disposed in the housing;

[0009] The lifting device is disposed in the housing, and the lifting device is disposed below the granulating device;

[0010] The granulating device is adapted to prepare the raw materials entering the housing into granular form;

[0011] The lifting device is adapted to clean the through holes on the screen plate in the granulating device and clean the raw materials remaining on the top surface of the screen plate.

[0012] In an optional embodiment, the lifting device includes: a lifting plate;

[0013] The lifting plate is arranged inside the housing, and the lifting plate is located below the granulating device;

[0014] The top surface of the lifting plate is arched, and the closer to the center of the lifting plate, the higher it is;

[0015] There is a gap between the side wall of the lifting plate and the inner wall of the housing;

[0016] A number of columns are arranged on the top surface of the lifting plate, and the columns correspond to the through holes on the mesh plate;

[0017] The lifting plate moves upward to insert the columns into the corresponding through holes to clean the through holes.

[0018] In an optional embodiment, a strip-shaped hole is axially formed in the side wall of the housing, and a lifting block is slidably arranged in the strip-shaped hole;

[0019] The bottom of the strip-shaped hole communicates with the bottom surface of the housing so that the lifting block extends out from the bottom surface of the housing;

[0020] The side wall of the lifting block contacts the inner wall of the strip-shaped hole, and a bellows is connected between the top surface of the lifting block and the inner top surface of the strip-shaped hole;

[0021] The lifting block is connected to the lifting plate;

[0022] The lifting block is connected to a cylinder, and the cylinder drives the lifting block to lift and lower so as to lift and lower the lifting plate;

[0023] In an optional embodiment, a first connecting plate is arranged on the lifting block, the first connecting plate is inside the housing, and a first extending portion is arranged on the first connecting plate;

[0024] A second connecting plate is arranged on the bottom surface of the lifting plate;

[0025] A second extending portion is arranged on the side wall of the second connecting plate, and the second extending portion is below the first extending portion;

[0026] A number of springs are connected between the second extending portion and the first extending portion.

[0027] In an optional embodiment, the granulating device includes: a driving mechanism, a ring body, a mesh plate and a pair of pressing rollers;

[0028] The driving mechanism is arranged outside the housing, and the driving shaft in the driving mechanism extends into the housing;

[0029] The ring body is sleeved on the driving shaft, the mesh plate is sleeved outside the ring body, and the mesh plate and the ring body are connected by a return spring;

[0030] A plurality of through holes are formed in the screen plate;

[0031] A shaft body is horizontally arranged in the housing, and the shaft body is located above the screen plate;

[0032] The pressure roller is rotatably arranged on the shaft body, and the pressure roller contacts the top surface of the screen plate;

[0033] The driving mechanism is adapted to drive the ring body to rotate so as to drive the screen plate to rotate.

[0034] In an optional embodiment, a rotating plate is sleeved on the driving shaft. The rotating plate is located below the lifting plate, and convex strips are arranged along the radial direction of the rotating plate on the top surface of the rotating plate;

[0035] The bottom surface of the second connecting plate contacts the top surface of the rotating plate.

[0036] In an optional embodiment, a feed inlet and a discharge outlet are formed in the housing;

[0037] The feed inlet is located at the top of the housing;

[0038] The discharge outlet is located on the side wall of the housing, and a guiding plate is obliquely arranged outside the discharge outlet;

[0039] The second connecting plate is arranged close to the discharge outlet.

[0040] In an optional embodiment, the driving mechanism includes: a driving motor, a driving shaft and a transmission component;

[0041] The driving motor is arranged outside the housing;

[0042] The driving shaft is vertically arranged through the housing;

[0043] The driving shaft passes through the rotating plate, the lifting plate and the ring body;

[0044] The driving motor is connected to the driving shaft through the transmission component to drive the driving shaft to rotate;

[0045] The driving shaft drives the rotating plate and the ring body to rotate.

[0046] In an optional embodiment, the transmission component includes: a plurality of transmission wheels and a belt;

[0047] The output end of the driving motor is connected to one transmission wheel, and another transmission wheel is arranged on the driving shaft;

[0048] The two transmission wheels are driven by the belt.

[0049] Second aspect, the embodiments of the present disclosure further provide a working method of a granulator for preparing a saline-alkali soil conditioner, including:

[0050] The lifting device cleans the through holes on the screen plate of the granulating device and cleans the raw materials remaining on the top surface of the screen plate.

[0051] The beneficial effect of the present invention is that the granulator for preparing a saline-alkali soil conditioner includes: a housing, and a granulating device and a lifting device arranged in the housing; the granulating device is arranged in the housing; the lifting device is arranged in the housing and is arranged below the granulating device; the granulating device is adapted to prepare the raw materials entering the housing into granular form; the lifting device is adapted to clean the through holes on the screen plate of the granulating device and clean the raw materials remaining on the top surface of the screen plate, thereby realizing the cleaning of the raw materials remaining in the through holes and the raw materials remaining on the top surface of the screen plate, and avoiding the influence of the remaining raw materials on the particle preparation.

[0052] Other features and advantages of the present invention will be described in the subsequent description, and, in part, will be obvious from the description, or will be understood by implementing the present invention. The objectives and other advantages of the present invention are realized and obtained by the structures specifically pointed out in the description and the drawings.

[0053] To make the above objectives, features and advantages of the present invention more obvious and understandable, specific preferred embodiments are hereby given, and in conjunction with the accompanying drawings, the following detailed description is provided. Description of the Drawings

[0054] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0055] Figure 1 A structural schematic diagram of a granulator for preparing a saline-alkali soil conditioner provided by an embodiment of the present disclosure;

[0056] Figure 2 A structural schematic diagram of a granulating device provided by an embodiment of the present disclosure;

[0057] Figure 3 A position schematic diagram of a lifting device provided by an embodiment of the present disclosure;

[0058] Figure 4 A structural schematic diagram of a lifting device provided by an embodiment of the present disclosure;

[0059] Figure 5 Schematic diagram of a screen plate structure provided by an embodiment of the present disclosure.

[0060] In the figure:

[0061] 1 housing, 11 strip-shaped holes, 12 feed inlet, 13 discharge outlet, 14 guide plate;

[0062] 2 lifting device, 21 lifting plate, 211 column body, 212 second connecting plate, 213 second extension part, 22 lifting block, 221 bellows plate, 222 first connecting plate, 223 first extension part, 224 spring;

[0063] 3 granulating device, 31 ring body, 32 screen plate, 321 through hole, 33 pressing roller, 331 shaft body, 34 rotating plate, 341 convex strip, 35 driving mechanism, 351 driving motor, 352 driving shaft, 353 transmission wheel, 354 belt. Detailed implementation manners

[0064] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0065] As used herein, phrases such as "in one embodiment", "according to one embodiment", "in some embodiments", etc. generally refer to the fact that the specific features, structures, or characteristics after the phrase can be included in at least one embodiment of the present disclosure. Therefore, the specific features, structures, or characteristics can be included in more than one embodiment of the present disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, terms such as "example", "exemplary", etc. are used "for the purpose of serving as an example, instance, or illustration. Any embodiment, aspect, or design described herein as "example" or "exemplary" is not necessarily to be construed as preferred or superior to other embodiments, aspects, or designs. Instead, the use of terms such as "example", "exemplary", etc. is intended to present concepts in a specific manner.

[0066] During the process of preparing particles, the granulator uses pressure rollers to roll the raw materials, causing the raw materials to form particles through the through-holes on the screen plate. However, the pressure rollers will press the raw materials tightly against the positions on the top surface of the screen plate where there are no through-holes. Due to the obstruction of these residual raw materials, the force for the pressure rollers to press the raw materials into the through-holes decreases, resulting in a decrease in granulation efficiency. Moreover, the decrease in force will lead to a reduction in the amount of raw materials pressed into the through-holes, resulting in a decrease in the particle size and affecting the particle effect. For example, the decrease in particle size makes it easy for the saline-alkali land improver to be blown away by the wind during use, leading to a reduction in the improvement effect on the soil. Additionally, the raw materials remaining in the through-holes will also cause a decrease in the efficiency of particle preparation and a decrease in particle size.

[0067] During the process of preparing the saline-alkali land improver, the inventor found that during the rolling process of the pressure rollers on the raw materials, raw materials will remain on the screen plate, and raw materials will remain in the through-holes of the screen plate. The raw materials remaining on the screen plate will cause the force for the pressure rollers to press the raw materials into the through-holes to decrease, resulting in an impact on the shape and size of the particles and affecting the quality. The raw materials remaining in the through-holes will lead to a decrease in the efficiency of granule preparation and an impact on the shape and size of the particles, affecting the quality.

[0068] Regarding the defects existing in the above solutions, they are all the results obtained by the inventor through practice and careful research. Therefore, the discovery process of the above problems and the solutions proposed in this disclosure by the present disclosure should all be the contributions made by the inventor during the process of this disclosure.

[0069] It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0070] The following will describe in detail some embodiments of the present invention with reference to the drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0071] As Figure 1 shown, at least one disclosed embodiment provides a granulator for preparing a saline-alkali land improver, including: a housing 1, and a granulating device 3 and a lifting device 2 disposed in the housing 1; the granulating device 3 is disposed in the housing 1; the lifting device 2 is disposed in the housing 1 and is disposed below the granulating device 3; the granulating device 3 is adapted to prepare the raw materials entering the housing 1 into particles; the lifting device 2 is adapted to clean the through-holes 321 on the screen plate 32 of the granulating device 3 and the raw materials remaining on the top surface of the screen plate 32, thereby realizing the cleaning of the raw materials remaining in the through-holes 321 and the raw materials remaining on the top surface of the screen plate 32, and avoiding the impact of the remaining raw materials on particle preparation.

[0072] AsFigure 3 and Figure 4 As shown in Figure 4 , in an alternative embodiment, the lifting device 2 includes: a lifting plate 21; the lifting plate 21 is disposed within the housing 1, and the lifting plate 21 is located below the granulating device 3; the top surface of the lifting plate 21 is arched, with the center of the lifting plate 21 being higher; there is a gap between the side wall of the lifting plate 21 and the inner wall of the housing 1; a plurality of columns 211 are provided on the top surface of the lifting plate 21, and the columns 211 correspond to the through holes 321 on the mesh plate 32; the lifting plate 21 moves upward to insert the columns 211 into the corresponding through holes 321 to clean the through holes 321.

[0073] In this embodiment, the raw material is pressed by the pressing roller 33 onto the top surface of the mesh plate 32 and enters the through holes 321, and finally forms particles. The particles fall onto the top surface of the lifting plate 21. The arched lifting plate 21 in the middle can cause the particles to roll towards the edge of the lifting plate 21 after falling onto the lifting plate 21, so that the particles can smoothly pass through the gap between the lifting plate 21 and the inner wall of the housing 1 and fall onto the rotating plate 34.

[0074] In this embodiment, in the initial state, the top surface of the column 211 is at a certain distance from the bottom surface of the mesh plate 32. When it is necessary to clean the through holes 321, the lifting plate 21 rises to insert the columns 211 into the through holes 321 to clean the remaining raw material in the through holes 321.

[0075] As Figure 2 shown, in an alternative embodiment, a strip-shaped hole 11 is axially formed in the side wall of the housing 1, and a lifting block 22 is slidably disposed in the strip-shaped hole 11; the bottom of the strip-shaped hole 11 communicates with the bottom surface of the housing 1 to enable the lifting block 22 to extend from the bottom surface of the housing 1; the side wall of the lifting block 22 contacts the inner wall of the strip-shaped hole 11, and a bellows plate 221 is connected between the top surface of the lifting block 22 and the inner top surface of the strip-shaped hole 11; the bottom of the lifting block 22 is still below the bottom surface of the strip-shaped hole 11 when the lifting block 22 rises to the highest position, to prevent the particles in the housing 1 from falling; the lifting block 22 is connected to the lifting plate 21; the lifting block 22 is connected to a cylinder, and the cylinder drives the lifting block 22 to lift and lower, so as to lift and lower the lifting plate 21.

[0076] In this embodiment, the strip-shaped hole 11 communicates with the bottom surface of the housing 1, enabling the lifting block 22 to move up and down better.

[0077] In this embodiment, the bellows plate 221 prevents the particles in the housing 1 from falling out of the strip-shaped hole 11.

[0078] In this embodiment, the cylinder can be electrically connected to a control module, and the control module can control the cylinder to drive the lifting block 22 to rise, so that after the lifting plate 21 rises, the column body 211 is inserted into the through hole 321.

[0079] As Figure 4 shown, in an alternative embodiment, a first connecting plate 222 is provided on the lifting block 22. The first connecting plate 222 is located inside the housing 1, and a first extension 223 is provided on the first connecting plate 222. A second connecting plate 212 is provided on the bottom surface of the lifting plate 21. A second extension 213 is provided on the side wall of the second connecting plate 212, and the second extension 213 is located below the first extension 223. A plurality of springs 224 are connected between the second extension 213 and the first extension 223.

[0080] In this embodiment, the lifting block 22 is connected to the lifting plate 21 by the first connecting plate 222, the first extension 223, the second connecting plate 212, the second extension 213, and a plurality of springs 224.

[0081] In this embodiment, the second connecting plate 212 can be lifted by the rib 341, so that the second extension 213 moves upward to compress the spring 224, and the second connecting plate 212 and the first connecting plate 222 move relatively. The spring 224 can be used to reset the second connecting plate 212.

[0082] As Figure 2 shown, in an alternative embodiment, the granulating device 3 includes: a driving mechanism 35, an annular body 31, a screen plate 32, and a pair of pressing rollers 33. The driving mechanism 35 is arranged outside the housing 1, and the driving shaft 352 in the driving mechanism 35 extends into the housing 1. The annular body 31 is sleeved on the driving shaft 352, the screen plate 32 is sleeved outside the annular body 31, and the screen plate 32 is connected to the annular body 31 by a return spring. A plurality of through holes 321 are formed in the screen plate 32. A shaft body 331 is horizontally arranged in the housing 1, and the shaft body 331 is located above the screen plate 32. The pressing roller 33 is rotatably arranged on the shaft body 331, and the pressing roller 33 contacts the top surface of the screen plate 32. The driving mechanism 35 is adapted to drive the annular body 31 to rotate to drive the screen plate 32 to rotate.

[0083] In this embodiment, after the cylinder 211 is inserted into the through hole 321, the ring body 31 can continue to rotate following the drive shaft 352. In this way, cleaning can be achieved without stopping the machine. When the cylinder 211 is inserted into the through hole 321, the mesh plate 32 rotates relative to the ring body 31 so that the mesh plate 32 can rotate following the cylinder 31. When the ring body 31 continues to rotate following the drive shaft 352, relative rotation occurs between the ring body 31 and the mesh plate 32 through the return spring. After the cylinder 211 disengages from the through hole 321, the mesh plate 32 is quickly reset by the return spring. At this time, a speed difference appears between the mesh plate 32 and the ring body 31. The pressure roller 33 contacts the surface of the mesh plate 32 at this time, and the speed difference enables the pressure roller 33 to shovel up the raw materials remaining on the surface of the mesh plate 32, preventing the raw materials from remaining on the surface of the mesh plate 32.

[0084] As Figure 2 shown, in an alternative embodiment, a rotating plate 34 is sleeved on the drive shaft 352. The rotating plate 34 is located below the lifting plate 21. A convex strip 341 is arranged along the radial direction of the rotating plate 34 on the top surface of the rotating plate 34; the bottom surface of the second connecting plate 212 contacts the top surface of the rotating plate 34.

[0085] In this embodiment, multiple convex strips 341 can be provided. When the convex strip 341 passes by the second connecting plate 212 during the rotation of the rotating plate 34, it will lift up the second connecting plate 212. When the convex strip 341 lifts up the second connecting plate 212, it will drive the lifting plate 21 to move upward. When the convex strip 341 lifts the second connecting plate 212 to the highest position, there is still a gap between the highest position of the cylinder 211 on the lifting plate 21 and the bottom surface of the mesh plate 32 at this time, that is, the cylinder 211 will not be inserted into the through hole 321.

[0086] In this embodiment, the lifting plate 21 is repeatedly lifted by the convex strip 341, so that the particles on the lifting plate 21 will not get stuck on the lifting plate 21, facilitating the particles to roll off the lifting plate 21.

[0087] In this embodiment, by providing the lifting plate 21, the particles are blocked by the lifting plate 21 before falling on the rotating plate 34, preventing the particles from being crushed when directly falling on the rotating plate 34 due to the excessive height between the mesh plate 32 and the rotating plate 34.

[0088] In this embodiment, in the original granulation process, as the raw material extends out of the through hole 321, the total weight of the extended part increases with the increase of the extension length. Then, because the weight reaches a certain level, the raw material breaks to form particles, which will cause some particles to be too large and the size difference between the particles to be too large. In this embodiment, when the raw material is extruded through the through hole 321 and extends out from the bottom surface of the mesh plate 32, at this time, after the raw material extends a certain length, it will be scraped off by the cylinder 211, reducing the size difference between the particles and preventing the particles from being too large.

[0089] In this embodiment, the diameter of the column 211 can be smaller than the diameter of the through hole 321, so that the column 211 can more conveniently extend into the column 211. And because the diameter of the column 211 is smaller than the diameter of the through hole 321, the distribution of the column 211 will be sparser than the distribution of the through hole 321. After the particles fall on the lifting plate 21, the column 211 reduces the obstruction to the particles, and the column 211 can reduce the speed of the particles rolling towards the edge of the lifting plate 21, avoiding the particles from being crushed when they fall on the rotating plate 34 due to the too fast rolling speed.

[0090] As Figure 1 shown, in an alternative embodiment, the housing 1 is provided with a feed inlet 12 and a discharge outlet 13; the feed inlet 12 is located at the top of the housing 1; the discharge outlet 13 is located on the side wall of the housing 1, and a guiding plate 14 is inclinedly arranged outside the discharge outlet 13; the second connecting plate 212 is arranged close to the discharge outlet 13.

[0091] In this embodiment, when the rotating plate 34 rotates, the particles on the rotating plate 34 will be blocked by the second connecting plate 212. At this time, the particles accumulate on one side of the second connecting plate 212 close to the discharge outlet 13, so that the particles can smoothly roll out from the discharge outlet 13 and roll to the collection position through the guiding plate 14.

[0092] As Figure 1 shown, in an alternative embodiment, the driving mechanism 35 includes: a driving motor 351, a driving shaft 352 and a transmission assembly; the driving motor 351 is arranged outside the housing 1; the driving shaft 352 is vertically arranged inside the housing 1; the driving shaft 352 passes through the rotating plate 34, the lifting plate 21 and the ring body 31; the driving motor 351 is connected to the driving shaft 352 through the transmission assembly to drive the driving shaft 352 to rotate; the driving shaft 352 drives the rotating plate 34 and the ring body 31 to rotate.

[0093] In this embodiment, the driving motor 351 is electrically connected to a control module, and the control module can control the start-stop and rotation speed of the driving motor 351.

[0094] As Figure 1 shown, in an alternative embodiment, the transmission assembly includes: a plurality of transmission wheels 353 and a belt 354; the output end of the driving motor 351 is connected to a transmission wheel 353, and another transmission wheel 353 is arranged on the driving shaft 352; the two transmission wheels 353 are driven by the belt 354.

[0095] In this embodiment, in the initial state, there is a certain distance between the lifting plate 21 and the bottom surface of the mesh plate 32. At this time, the control module controls the driving motor 351 to start. The driving motor 351 drives the driving shaft 352 to rotate through the transmission wheel 353 and the belt 354. The driving shaft 352 drives the ring body 31 to make the mesh plate 32 rotate. During the rotation of the mesh plate 32, the pressing roller 33 presses the raw material into the through hole 321 for granulation. The rotating plate 34 rotates synchronously with the driving shaft 352, so that each convex strip 341 passes through the second connecting plate 212 and repeatedly lifts the lifting plate 21. At this time, when the lifting plate 21 is lifted to the highest position by the convex strip 341, the column body 211 will not be inserted into the through hole 321. By repeatedly lifting the lifting plate 21 by the convex strip 341, the particles are prevented from being stuck by the column body 211, so that the particles can roll smoothly onto the rotating plate 34. Every preset time interval, the control module can control the air cylinder to drive the lifting block 22 to rise, and then drive the lifting plate 21 to rise, so that the column body 211 is inserted into the corresponding through hole 321 to clean the raw material remaining in the through hole 321. And during the process of the column body 211 being inserted into the through hole 321, the driving shaft 352 continues to drive the ring body 31 to rotate. At this time, because the column body 211 extends into the through hole 321, the mesh plate 32 does not rotate. When the column body 211 completely extends into the through hole 321, at this time, the top surface of the column body 211 is flush with the top surface of the corresponding through hole 321, and the column body 211 will not protrude from the top surface of the through hole 321. The control module controls the air cylinder to drive the lifting block 22 to descend, and then drive the lifting plate 21 to descend, so that the column body 211 disengages from the through hole 321. After the column body 211 disengages from the through hole 321, the return spring drives the mesh plate 32 to quickly reset. At this time, there is a speed difference between the mesh plate 32 and the ring body 31. The pressing roller 33 shovels up the raw material remaining on the top surface of the mesh plate 32 due to the speed difference between the mesh plate 32 and the ring body 31, preventing the raw material from being pressed and remaining on the surface of the mesh plate 32.

[0096] At least one other disclosed embodiment also provides a working method using the above granulator for preparing a saline-alkali soil conditioner, including: the lifting device 2 cleaning the through holes 321 on the mesh plate 32 in the granulating device 3, and cleaning the raw material remaining on the top surface of the mesh plate 32.

[0097] In summary, the granulator for preparing a saline-alkali soil conditioner of the present invention includes: a housing 1, and a granulating device 3 and a lifting device 2 provided in the housing 1; the granulating device 3 is provided in the housing 1; the lifting device 2 is provided in the housing 1, and the lifting device 2 is provided below the granulating device 3; the granulating device 3 is adapted to prepare the raw material entering the housing 1 into particles; the lifting device 2 is adapted to clean the through holes 321 on the mesh plate 32 in the granulating device 3, and clean the raw material remaining on the top surface of the mesh plate 32, thereby realizing the cleaning of the raw material remaining in the through holes 321 and the raw material remaining on the top surface of the mesh plate 32, and preventing the remaining raw material from affecting the particle preparation.

[0098] In the description of the embodiments of the present invention, unless otherwise clearly defined and limited, the terms "installed", "connected", and "coupled" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0099] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, terms such as "first", "second" and other numerical terms used herein do not imply an order or sequence unless explicitly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer or section discussed above may be referred to as the second element, component, region, layer or section.

[0100] Spatially relative terms, such as "inner", "outer", "beneath", "below", "lower", "above", "upper", etc., may be used herein to facilitate describing the relationship of one element or feature to another element or feature as illustrated in the figures. In addition to the orientation depicted in the figures, spatially relative terms are intended to encompass different orientations of the device in use or operation. For example, if the device in the figures is turned over, an element described as "beneath" or "below" another element or feature will then be oriented "above" the other element or feature. Thus, the exemplary term "beneath" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein are to be interpreted accordingly.

[0101] Based on the above inspiration from the ideal embodiments of the present invention, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this invention. The technical scope of this invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A granulator for preparing a saline-alkali land improver, characterized in that: include: A shell (1), and a granulating device (3) and a lifting device (2) arranged in the shell (1); The granulation device (3) is arranged in the housing (1); The lifting device (2) is arranged in the housing (1), and the lifting device (2) is arranged below the granulating device (3); The granulation device (3) is suitable for preparing the raw materials entering the housing (1) into granules; The lifting device (2) is suitable for cleaning the through holes (321) on the mesh plate (32) in the granulating device (3), and for cleaning the raw materials remaining on the top surface of the mesh plate (32); The lifting device (2) comprises a lifting plate (21); A plurality of columns (211) are provided on the top surface of the lifting plate (21); The lifting plate (21) moves upward to allow the column (211) to be inserted into the corresponding through hole (321) to clean the through hole (321); The granulation device (3) comprises: a driving mechanism (35), a ring body (31), a screen plate (32) and a pair of pressing rollers (33); The drive shaft (352) in the drive mechanism (35) extends into the housing (1); The ring body (31) is sleeved on the driving shaft (352), the mesh plate (32) is sleeved outside the ring body (31), and the mesh plate (32) and the ring body (31) are connected via a return spring; The pressing roller (33) is in contact with the top surface of the screen plate (32); The driving mechanism (35) is suitable for driving the ring body (31) to rotate, thereby driving the mesh plate (32) to rotate; When the column (211) is inserted into the through hole (321), the ring body (31) continues to rotate along with the driving shaft (352). At this time, the ring body (31) and the mesh plate (32) rotate relative to each other through the reset spring. When the column (211) is separated from the through hole (321), the mesh plate (32) is quickly reset through the reset spring. At this time, a speed difference occurs between the mesh plate (32) and the ring body (31). At this time, the pressure roller (33) contacts the surface of the mesh plate (32) to clean the raw materials remaining on the top surface of the mesh plate (32).

2. The granulator for preparing a saline-alkali land improving agent according to claim 1, characterized in that: The lifting plate (21) is arranged in the housing (1), and the lifting plate (21) is located below the granulation device (3); The top surface of the lifting plate (21) is in an arched state, and becomes higher as it approaches the center of the lifting plate (21); There is a gap between the side wall of the lifting plate (21) and the inner wall of the shell (1); The column (211) corresponds to the through hole (321) on the mesh plate (32).

3. The granulator for preparing the saline-alkali land improving agent according to claim 2, characterized in that: A strip-shaped hole (11) is provided on the side wall of the shell (1) along the axial direction of the shell (1), and a lifting block (22) is slidably arranged in the strip-shaped hole (11); The bottom of the strip-shaped hole (11) is in communication with the bottom surface of the shell (1), so that the lifting block (22) extends out from the bottom surface of the shell (1); The side wall of the lifting block (22) contacts the inner wall of the strip-shaped hole (11), and an accordion plate (221) is connected between the top surface of the lifting block (22) and the inner top surface of the strip-shaped hole (11); The lifting block (22) is connected to the lifting plate (21); The lifting block (22) is connected to a cylinder, and the cylinder drives the lifting block (22) to move up and down, so that the lifting plate (21) moves up and down.

4. The granulator for preparing a saline-alkali land improving agent according to claim 3, characterized in that: A first connecting plate (222) is provided on the lifting block (22); the first connecting plate (222) is located inside the housing (1); and a first extending portion (223) is provided on the first connecting plate (222); A second connecting plate (212) is provided on the bottom surface of the lifting plate (21); A second extension portion (213) is provided on the side wall of the second connecting plate (212), and the second extension portion (213) is located below the first extension portion (223); A plurality of springs (224) are connected between the second extension portion (213) and the first extension portion (223).

5. The granulator for preparing a saline-alkali land improving agent according to claim 4, characterized in that: The driving mechanism (35) is arranged outside the housing (1); The mesh plate (32) is provided with a plurality of through holes (321); A shaft body (331) is disposed transversely in the housing (1), and the shaft body (331) is located above the mesh plate (32); The pressing roller (33) is rotatably arranged on the shaft body (331).

6. The granulator for preparing a saline-alkali land improving agent according to claim 5, characterized in that: A rotating plate (34) is sleeved on the driving shaft (352), the rotating plate (34) is located below the lifting plate (21), and a convex strip (341) is provided on the top surface of the rotating plate (34) along the radial direction of the rotating plate (34); The bottom surface of the second connecting plate (212) contacts the top surface of the rotating plate (34).

7. The granulator for preparing a saline-alkali land improving agent according to claim 6, characterized in that: The shell (1) is provided with a feed inlet (12) and a discharge outlet (13); The feed port (12) is located at the top of the shell (1); The discharge port (13) is located on the side wall of the housing (1), and a guide plate (14) is obliquely arranged outside the discharge port (13); The second connecting plate (212) is arranged close to the discharge port (13).

8. The granulator for preparing a saline-alkali land improving agent according to claim 5, characterized in that: The driving mechanism (35) comprises: a driving motor (351), a driving shaft (352) and a transmission assembly; The driving motor (351) is arranged outside the housing (1); The drive shaft (352) is vertically disposed in the housing (1); The driving shaft (352) passes through the rotating plate (34), the lifting plate (21) and the ring body (31); The driving motor (351) is connected to the driving shaft (352) via a transmission assembly to drive the driving shaft (352) to rotate; The driving shaft (352) drives the rotating plate (34) and the ring body (31) to rotate.

9. The granulator for preparing a saline-alkali land improving agent according to claim 8, characterized in that: The transmission assembly comprises: a plurality of transmission wheels (353) and a belt (354); The output end of the driving motor (351) is connected to a transmission wheel (353), and another transmission wheel (353) is arranged on the driving shaft (352); The two transmission wheels (353) are connected via a belt (354).

10. A method for operating the granulator for preparing a saline-alkali land improver according to claim 1, characterized in that: include: The lifting device (2) cleans the through holes (321) on the mesh plate (32) in the granulating device (3), and cleans the raw materials remaining on the top surface of the mesh plate (32).

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