Granulator for preparing saline-alkali soil modifier and working method

Abstract

The invention belongs to the technical field of fertilizer manufacturing, and particularly relates to a soil conditioner, in particular to a pelletizer for preparing a saline-alkali soil conditioner and a working method, the pelletizer comprises a shell, and a pelletizing device and a lifting device which are arranged in the shell; the granulation device is arranged in the shell; the lifting device is arranged in the shell, and the lifting device is arranged below the granulation device; the granulating device is suitable for preparing the raw materials entering the shell into granules; the lifting device is suitable for cleaning through holes in a screen plate in the granulation device and cleaning residual raw materials on the top surface of the screen plate, so that the residual raw materials in the through holes and the residual raw materials on the top surface of the screen plate are cleaned, and the influence of the residual raw materials on particle preparation is avoided.

Description

Technical Field

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

[0002] During the preparation process of saline-alkali land conditioner, a granulator is required for production. It is easy to store, transport and spread mechanically. After application, it can significantly reduce soil pH, increase soil moisture content and promote aggregate formation, reduce irrigation needs and secondary fertilization costs. However, during the preparation of saline-alkali land conditioner by a granulator, the raw materials will remain on the mesh plate due to the pressing of the raw materials by the pressing roller, and the raw materials will remain in the through holes of the mesh plate. The raw materials remaining on the mesh plate will cause the force of the pressing roller to press the raw materials into the through holes to decrease, resulting in the shape and size of the particles being affected, affecting the quality. The raw materials remaining in the through holes will lead to a decrease in the efficiency of granulation preparation, and cause the shape and size of the particles to be affected, affecting the quality.

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

[0004] It should be noted that the above information disclosed in this background technology section is only used to understand the background technology of the present application concept, and therefore, the above description is not considered to constitute 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 improving agent.

[0006] In a first aspect, an embodiment of the present disclosure provides a granulator for preparing a saline-alkali land improver, comprising: A shell, and a granulating device and a lifting device arranged in the shell; The granulation 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 granulation device is suitable for preparing the raw materials entering the housing into granular form; The lifting device is suitable for cleaning the through holes on the mesh plate in the granulation device and cleaning the raw materials remaining on the top surface of the mesh plate.

[0007] In an optional embodiment, the lifting device includes: a lifting plate; The lifting plate is arranged in the housing, and the lifting plate is located below the granulating device; The top surface of the lifting plate is in an arched state, and the higher it is, the closer it is to the center of the lifting plate; There is a gap between the side wall of the lifting plate and the inner wall of the shell; The top surface of the lifting plate is provided with a plurality of columns, and the columns correspond to the through holes on the mesh plate; The lifting plate moves upward to allow the column to be inserted into the corresponding through hole to clean the through hole.

[0008] In an optional embodiment, a strip-shaped hole is opened on the side wall of the shell along the axial direction of the shell, and a lifting block is slidably arranged in the strip-shaped hole; The bottom of the strip-shaped hole is connected to the bottom surface of the shell, so that the lifting block extends out from the bottom surface of the shell; The side wall of the lifting block contacts the inner wall of the strip hole, and an accordion plate is connected between the top surface of the lifting block and the inner top surface of the strip hole; The lifting block is connected to the lifting plate; The lifting block is connected to a cylinder, and the cylinder drives the lifting block to move up and down, so that the lifting plate moves up and down; In an optional embodiment, a first connecting plate is provided on the lifting block, the first connecting plate is located in the shell, and a first extending portion is provided on the first connecting plate; A second connecting plate is provided on the bottom surface of the lifting plate; A second extension portion is provided on the side wall of the second connecting plate, and the second extension portion is located below the first extension portion; A plurality of springs are connected between the second extending portion and the first extending portion.

[0009] In an optional embodiment, the granulation device comprises: a driving mechanism, a ring body, a mesh plate and a pair of pressing rollers; The driving mechanism is arranged outside the housing, and the driving shaft in the driving mechanism extends into the housing; 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 via a return spring; The mesh plate is provided with a plurality of through holes; A shaft body is transversely arranged in the shell, and the shaft body is located above the mesh plate; The pressing roller is rotatably arranged on the shaft body, and the pressing roller is in contact with the top surface of the screen; The driving mechanism is suitable for driving the ring body to rotate, so as to drive the mesh plate to rotate.

[0010] In an optional embodiment, a rotating plate is sleeved on the driving shaft, the rotating plate is located below the lifting plate, and a convex strip is arranged on the top surface of the rotating plate along the radial direction of the rotating plate; The bottom surface of the second connecting plate contacts the top surface of the rotating plate.

[0011] In an optional embodiment, the shell is provided with a feed inlet and a discharge outlet; The feed port is located at the top of the shell; The discharge port is located on the side wall of the shell, and a guide plate is obliquely arranged outside the discharge port; The second connecting plate is arranged close to the discharge port.

[0012] In an optional embodiment, the driving mechanism includes: a driving motor, a driving shaft and a transmission assembly; The driving motor is arranged outside the housing; The drive shaft is vertically arranged in the housing; The driving shaft passes through the rotating plate, the lifting plate and the ring body; The driving motor is connected to the driving shaft through a transmission assembly to drive the driving shaft to rotate; The driving shaft drives the rotating plate and the ring body to rotate.

[0013] In an optional embodiment, the transmission assembly includes: a plurality of transmission wheels and belts; The output end of the driving motor is connected to a transmission wheel, and another transmission wheel is arranged on the driving shaft; The two transmission wheels are driven by a belt.

[0014] In a second aspect, the present disclosure also provides a working method of the granulator for preparing the saline-alkali land improver, comprising: The lifting device cleans the through holes on the screen plate in the granulating device and cleans the raw materials remaining on the top surface of the screen plate.

[0015] The beneficial effect of the present invention is that the granulator for preparing saline-alkali land improver comprises: a shell, and a granulating device and a lifting device arranged in the shell; the granulating device is arranged in the shell; the lifting device is arranged in the shell, and the lifting device is arranged below the granulating device; the granulating device is suitable for preparing the raw materials entering the shell into granules; the lifting device is suitable for cleaning the through holes on the mesh plate in the granulating device, and cleaning the raw materials remaining on the top surface of the mesh 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 mesh plate, avoiding the residual raw materials from affecting the particle preparation.

[0016] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0017] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, this article specifically cites preferred embodiments and provides detailed descriptions as follows in conjunction with the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic diagram of the structure of a granulator for preparing a saline-alkali land improving agent provided in an embodiment of the present disclosure; Figure 2 A schematic diagram of the structure of a granulation device provided in an embodiment of the present disclosure; Figure 3 A schematic diagram of the position of a lifting device provided in an embodiment of the present disclosure; Figure 4 A structural schematic diagram of a lifting device provided in an embodiment of the present disclosure; Figure 5 A schematic diagram of a mesh panel structure provided in an embodiment of the present disclosure.

[0020] In the figure: 1 housing, 11 bar-shaped holes, 12 feed inlet, 13 discharge outlet, 14 guide plate; 2 lifting device, 21 lifting plate, 211 column, 212 second connecting plate, 213 second extending portion, 22 lifting block, 221 accordion plate, 222 first connecting plate, 223 first extending portion, 224 spring; 3 granulating device, 31 ring body, 32 mesh 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 DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] As used herein, the phrases "in one embodiment," "according to one embodiment," "in some embodiments," and the like generally refer to the fact that the particular feature, structure, or characteristic following the phrase may be included in at least one embodiment of the present disclosure. Therefore, a particular feature, structure, or characteristic may be included in more than one embodiment of the present disclosure, so that these phrases do not necessarily refer to the same embodiment. As used herein, the terms "example," "exemplary," and the like are used to "serve as an example, instance, or illustration." Any implementation, aspect, or design described herein as "example" or "exemplary" is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. On the contrary, the use of the terms "example," "exemplary," and the like is intended to present concepts in a concrete manner.

[0023] In the process of preparing granules, the granulator uses a pressure roller to crush the raw materials so that the raw materials pass through the through holes on the mesh to form granules. However, the pressure roller will press the raw materials at the position on the top surface of the mesh where no through holes are opened. Because of the obstruction of these residual raw materials, the force of the pressure roller when pressing the raw materials into the through holes is reduced, resulting in a decrease in the efficiency of granulation. The reduction in force will lead to a decrease in the amount of raw materials pressed into the through holes, resulting in a decrease in the size of the particles, affecting the effect of the particles. For example, the reduced particle size makes it easy for the saline-alkali land conditioner to be blown away by wind during use, resulting in a decrease in the improvement effect on the soil. The raw materials remaining in the through holes will also lead to a decrease in efficiency and a decrease in particle size during particle preparation.

[0024] During the process of preparing saline-alkali land conditioner by granulator, the inventor found that the raw materials would remain on the mesh plate and in the through holes of the mesh plate due to the rolling of the raw materials by the pressure roller. The residual raw materials on the mesh plate would reduce the force of the pressure roller to press the raw materials into the through holes, thereby affecting the shape and size of the particles and the quality. The residual raw materials in the through holes would reduce the efficiency of granulation preparation and affect the shape and size of the particles and the quality.

[0025] The defects existing in the above solutions are the results obtained by the inventor after practice and careful research. Therefore, the discovery process of the above problems and the solutions proposed by the present invention in this article for the above problems should be the contributions made by the inventor to the present invention during the disclosure process.

[0026] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0027] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0028] like Figure 1 As shown, at least one disclosed embodiment provides a granulator for preparing saline-alkali land improver, comprising: a shell 1, and a granulating device 3 and a lifting device 2 arranged in the shell 1; the granulating device 3 is arranged in the shell 1; the lifting device 2 is arranged in the shell 1, and the lifting device 2 is arranged below the granulating device 3; the granulating device 3 is suitable for preparing the raw material entering the shell 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 cleaning 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, avoiding the residual raw material from affecting the particle preparation.

[0029] like Figure 3 and Figure 4 As shown, in an optional embodiment, the lifting device 2 includes: a lifting plate 21; the lifting plate 21 is arranged in the shell 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 the closer to the center of the lifting plate 21, the higher it is; there is a gap between the side wall of the lifting plate 21 and the inner wall of the shell 1; a plurality of columns 211 are arranged 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 allow the columns 211 to be inserted into the corresponding through holes 321 to clean the through holes 321.

[0030] In this embodiment, the raw material is pressed by the pressure roller 33 on the top surface of the mesh plate 32 into the through hole 321, and finally forms particles, which fall on the top surface of the lifting plate 21. The lifting plate 21 in the arched state in the middle allows the particles to roll toward the edge of the lifting plate 21 after falling on 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 shell 1 and fall onto the rotating plate 34.

[0031] In this embodiment, in the initial state, the top surface of the column 211 is a certain distance away from the bottom surface of the mesh plate 32. When the through hole 321 needs to be cleaned, the lifting plate 21 rises to allow the column 211 to be inserted into the through hole 321 to clean the remaining raw materials in the through hole 321.

[0032] like Figure 2As shown, in an optional embodiment, a strip hole 11 is opened 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 hole 11; the bottom of the strip hole 11 is connected to the bottom surface of the shell 1, so that the lifting block 22 extends from the bottom surface of the shell 1; the side wall of the lifting block 22 is in contact with the inner wall of the strip 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 hole 11; the bottom of the lifting block 22 is still located below the bottom surface of the strip hole 11 when the lifting block 22 rises to the maximum height, so as to prevent particles in the shell 1 from falling; the lifting block 22 is connected to the lifting plate 21; the lifting block 22 is connected to the cylinder, and the cylinder drives the lifting block 22 to rise and fall, so as to lift and fall the lifting plate 21.

[0033] In this embodiment, the strip-shaped hole 11 is connected to the bottom surface of the housing 1, so that the lifting block 22 can move up and down better.

[0034] In this embodiment, the accordion plate 221 is used to prevent particles in the housing 1 from falling out of the strip-shaped holes 11 .

[0035] In this embodiment, the cylinder may be electrically connected to a control module, and the control module may control the cylinder to drive the lifting block 22 to rise so that the column 211 is inserted into the through hole 321 after the lifting plate 21 rises.

[0036] like Figure 4 As shown, in an optional embodiment, a first connecting plate 222 is provided on the lifting block 22, the first connecting plate 222 is located in the shell 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 extending portion 213 is provided on the side wall of the second connecting plate 212, and the second extending portion 213 is located below the first extending portion 223; a plurality of springs 224 are connected between the second extending portion 213 and the first extending portion 223.

[0037] In this embodiment, the lifting block 22 is connected to the lifting plate 21 through the first connecting plate 222 , the first extending portion 223 , the second connecting plate 212 , the second extending portion 213 and a plurality of springs 224 .

[0038] In this embodiment, the second connecting plate 212 can be lifted by the convex strip 341 , so that the second extension portion 213 moves upward to compress the spring 224 , and the second connecting plate 212 and the first connecting plate 222 move relative to each other, and the second connecting plate 212 can be reset by the spring 224 .

[0039] like Figure 2As shown, in an optional embodiment, the granulation device 3 includes: a driving mechanism 35, a ring body 31, a mesh plate 32 and a pair of pressure rollers 33; the driving mechanism 35 is arranged outside the shell 1, and the driving shaft 352 in the driving mechanism 35 extends into the shell 1; the ring body 31 is sleeved on the driving shaft 352, and the mesh plate 32 is sleeved outside the ring body 31, and the mesh plate 32 and the ring body 31 are connected by a reset spring; a plurality of through holes 321 are opened on the mesh plate 32; a shaft body 331 is transversely arranged in the shell 1, and the shaft body 331 is located above the mesh plate 32; the pressure roller 33 is rotatably arranged on the shaft body 331, and the pressure roller 33 is in contact with the top surface of the mesh plate 32; the driving mechanism 35 is suitable for driving the ring body 31 to rotate, so as to drive the mesh plate 32 to rotate.

[0040] In this embodiment, after the cylinder 211 is inserted into the through hole 321, the ring body 31 can continue to rotate with the drive shaft 352, and 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 with the cylinder 31. When the ring body 31 continues to rotate with the drive shaft 352, the ring body 31 and the mesh plate 32 are relatively rotated by the reset spring. When the cylinder 211 is separated from the through hole 321, the reset spring quickly resets the mesh plate 32. At this time, there is a speed difference 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. The speed difference allows the pressure roller 33 to shovel up the raw materials remaining on the surface of the mesh plate 32 to prevent the raw materials from remaining on the surface of the mesh plate 32.

[0041] like Figure 2 As shown, in an optional embodiment, a rotating plate 34 is sleeved on the driving shaft 352, and the rotating plate 34 is located below the lifting plate 21. A convex strip 341 is arranged 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 is in contact with the top surface of the rotating plate 34.

[0042] In this embodiment, multiple ridges 341 can be provided. During the rotation of the rotating plate 34, the ridges 341 will lift up the second connecting plate 212 when passing through the second connecting plate 212. When the ridges 341 lift up the second connecting plate 212, they will drive the lifting plate 21 to move upward. When the ridges 341 lift the second connecting plate 212 to the highest position, there is still a gap between the highest position of the column 211 on the lifting plate 21 and the bottom surface of the mesh plate 32, that is, the column 211 will not be inserted into the through hole 321.

[0043] In this embodiment, the lifting plate 21 is repeatedly lifted up by the convex strips 341 , so that the particles on the lifting plate 21 will not get stuck on the lifting plate 21 , and the particles can easily roll off the lifting plate 21 .

[0044] In this embodiment, the lifting plate 21 is provided so that the particles are blocked by the lifting plate 21 before falling on the rotating plate 34, thereby preventing the mesh plate 32 and the rotating plate 34 from being too high and causing the particles to be crushed when they fall directly on the rotating plate 34.

[0045] In the present embodiment, in the original granulation process, after the raw material extends out of the through hole 321, as the extending length increases, the total weight of the extending part increases, and 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 the present embodiment, when the raw material is squeezed through the through hole 321 and extends out from the bottom surface of the mesh plate 32, the raw material will be scraped off by the column 211 after extending a certain length, so that the size difference between the particles is reduced, thereby avoiding the particles being too large.

[0046] 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 be more conveniently inserted 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 is 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 at which the particles roll toward the edge of the lifting plate 21, thereby preventing the particles from being crushed when they fall on the rotating plate 34 due to an excessively fast rolling speed.

[0047] like Figure 1 As shown, in an optional embodiment, a feed port 12 and a discharge port 13 are provided on the shell 1; 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 shell 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.

[0048] 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 are accumulated on the side of the second connecting plate 212 close to the discharge port 13, so that the particles can roll out smoothly from the discharge port 13 and roll to the collection position through the guide plate 14.

[0049] like Figure 1 As shown, in an optional 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 shell 1; the driving shaft 352 is vertically penetrated in the shell 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.

[0050] In this embodiment, the driving motor 351 is electrically connected to a control module, and the control module can control the start and stop and the rotation speed of the driving motor 351 .

[0051] like Figure 1 As shown, in an optional 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 a belt 354.

[0052] The control module 351 starts the driving motor 351, and the driving motor 351 starts to rotate the driving shaft 352 through the transmission wheel 353 and the belt 354. The driving shaft 352 drives the ring body 31 to rotate the mesh plate 32. 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 to repeatedly lift the lifting plate 21. At this time, when the lifting plate 21 is lifted to the maximum height by the convex strip 341, the column 211 will not be inserted into the through hole 321. The lifting plate 21 is repeatedly lifted by the convex strip 341 to prevent the particles from being stuck by the column 211, so that the particles can smoothly roll onto the rotating plate 34. At each preset time interval, the control module can control the cylinder to drive the lifting block 22 to rise, thereby driving the lifting The plate 21 rises, so that the column 211 is inserted into the corresponding through hole 321, and the residual raw materials in the through hole 321 are cleaned. In the process of the column 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 211 extends into the through hole 321, the mesh plate 32 does not rotate. When the column 211 is fully extended into the through hole 321, the top surface of the column 211 is flush with the top surface of the corresponding through hole 321, and the column 211 will not be inserted from the through hole The top surface 321 extends out, and the control module controls the cylinder to drive the lifting block 22 to descend, and then drives the lifting plate 21 to descend, so that the column 211 disengages from the through hole 321. After the column 211 disengages from the through hole 321, the reset spring drives the mesh plate 32 to quickly reset. At this time, a speed difference occurs between the mesh plate 32 and the ring body 31. The pressure 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, so as to prevent the raw material from being pressed and remaining on the surface of the mesh plate 32.

[0053] At least one other disclosed embodiment also provides a working method of the granulator for preparing saline-alkali land improver using the above-mentioned granulator, comprising: the lifting device 2 cleans the through holes 321 on the mesh plate 32 in the granulator 3, and cleans the raw materials remaining on the top surface of the mesh plate 32.

[0054] In summary, the granulator for preparing saline-alkali land improver includes: a shell 1, and a granulating device 3 and a lifting device 2 arranged in the shell 1; the granulating device 3 is arranged in the shell 1; the lifting device 2 is arranged in the shell 1, and the lifting device 2 is arranged below the granulating device 3; the granulating device 3 is suitable for preparing the raw material entering the shell 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 cleaning 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, avoiding the residual raw material from affecting the particle preparation.

[0055] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] 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", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, which 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 cannot be understood as a limitation of the present invention. In addition, terms such as "first", "second" and other numerical terms do not imply an order or sequence when used in this document unless explicitly indicated above. Therefore, without departing from the teachings of the example embodiments, the first element, component, region, layer or section discussed above may be referred to as a second element, component, region, layer or section.

[0057] Spatially relative terms, such as "inside", "outside", "below", "below", "down", "above", "on", etc., may be used herein to facilitate description of the relationship of one element or feature to another element or feature as illustrated in the figure. In addition to the orientation depicted in the figure, spatially relative terms may be intended to cover different orientations of the device in use or operation. For example, if the device in the figure is turned over, the elements described as "below" or "below" other elements or features will be oriented to be "above" other elements or features. Therefore, the example term "below" can cover the orientation above and below. The device can be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.

[0058] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of 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).

2. The granulator for preparing a saline-alkali land improving agent according to claim 1, characterized in that: The lifting device (2) comprises: a lifting plate (21); 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); 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 upwards to allow the column (211) to be inserted into the corresponding through hole (321) to clean the through hole (321).

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 granulation device (3) comprises: a driving mechanism (35), a ring 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 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 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 (331), and 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).

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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