A disc granulator based on desulfurized gypsum composite particles

Abstract

The present application relates to the technical field of granulation, in particular to a disc granulator based on desulfurized gypsum composite particles, comprising a rack, a disc, a discharging assembly and a separation assembly. In the present application, a first liquid outlet area is arranged during discharging, and liquid is sprayed through four spray members in a surrounding manner to cover the entire area of the inner cavity of the discharging cylinder. A second liquid outlet area is arranged in the disc to match the trajectory distribution of the free-falling materials after being pushed by the push plate. Through the second liquid outlet process, the materials and the liquid are fully mixed and uniformly distributed, which improves the granulation quality. In addition, the separation assembly is used to screen the granules meeting the granulation particle size, the remaining granules and the materials, which reduces the influence of the granules meeting the granulation particle size on the subsequent granulation process, increases the contact probability between the remaining materials and the remaining granules, and improves the granulation efficiency and quality.

Description

Technical Field

[0001] This invention relates to the field of granulation technology, specifically to a disc granulator based on desulfurized gypsum composite particles. Background Technology

[0002] Granulation of desulfurized gypsum composite particles is a systematic project that integrates solid waste modification, particle engineering and materials science. It is not only an effective technical approach to solve the problem of desulfurized gypsum disposal, but also an important link in building "zero-waste cities" and promoting the circular economy. The main operation process is to mix premixed materials with atomized water or binder liquid, and then form the final spherical particles or pellets through mechanical granulation.

[0003] Currently, granulation operations typically employ methods such as disc granulation, extrusion granulation, and mixing granulation. The main steps in disc granulation are as follows: premixed materials are continuously added to an inclined rotating disc, while atomized water or binder liquid is sprayed in. The materials grow layer by layer as they continuously roll, eventually forming spherical particles with uniform particle size. The required particle size is controlled by adjusting the duration of disc granulation; that is, a longer disc granulation time results in larger particle size, and vice versa.

[0004] The following problems exist in the existing disc granulation process: 1. Currently, the liquid enters the disc mainly through a single pipe pump. Therefore, the contact area between the liquid and the material is limited, so the disc needs to rotate for a longer time to mix and granulate, which affects the overall granulation efficiency. Secondly, this contact method with the material results in uneven mixing, with some areas being too wet or too dry, which affects the overall granulation quality.

[0005] 2. During the disc rolling granulation process, larger particles will float on the surface of the material layer due to gravity, while the unformed fine powder material will stick to the bottom of the disc. Therefore, during the granulation process, the formation of large particles that meet the set size will affect the granulation process of subsequent materials, reducing granulation efficiency and granulation quality. Summary of the Invention

[0006] Therefore, it is necessary to provide a disc granulator based on desulfurized gypsum composite particles, which aims to solve the problems of the prior art.

[0007] This application provides a disc granulator based on desulfurized gypsum composite particles, which is used in conjunction with a conveying device for feeding. The disc includes a frame on which a disc is rotatably mounted. The disc opening faces forward and the disc is tilted forward from top to bottom. The conveying device is located on the left side of the disc, and a feeding component that docks with the conveying device is provided inside the disc.

[0008] The feeding assembly includes a feeding cylinder with openings at both the top and bottom. The upper opening of the feeding cylinder is connected to the conveying equipment, and the lower opening faces the inside of the disc. A spray element is provided around the lower part of the feeding cylinder, penetrating the feeding cylinder. The liquid outlet direction of the spray element is horizontally towards the center of the feeding cylinder.

[0009] A liquid storage chamber is provided on the right side of the feeding cylinder. The liquid storage chamber is located between the pusher plate and the feeding cylinder. Below the liquid storage chamber, there are multiple spray nozzles II distributed along a parabolic trajectory. The liquid outlet direction of the spray nozzles II is vertically downward.

[0010] The inner cavity of the disc is rotatably equipped with a separation component for separating large particles from powder.

[0011] During the feeding process, the material is fully adhered and mixed with the liquid after passing through the rectangular area formed by the four spraying components. During the granulation process, the second spraying component sprays the liquid onto the material that is pushed by the pusher plate and falls in a parabolic trajectory. Meanwhile, the separation component continuously separates large particles from powder.

[0012] According to an advantageous embodiment, the feeding cylinder is vertically oriented, and an outer expansion groove is formed on the lower end face of the feeding cylinder, with the spray nozzle of the spraying component flush with the inner wall of the outer expansion groove.

[0013] A guide is fixedly installed inside the feeding cylinder. The guide is a square ring with an upper opening larger than the lower opening.

[0014] According to an advantageous embodiment, the spray element is fixedly sleeved on the lower end of the feed cylinder, and the four spray elements are connected by a connecting ring. Each spray element has a plurality of equally spaced liquid outlet holes on its end face facing the center of the feed cylinder.

[0015] According to an advantageous embodiment, an annular cleaning plate is slidably disposed inside the outer expansion groove, the lower end of the cleaning plate is chamfered, and four sliding rods are slidably disposed inside the feeding cylinder, the lower section of the sliding rods being fixedly connected to the cleaning plate, and a driving assembly is disposed above the four sliding rods.

[0016] According to an advantageous embodiment, the drive assembly includes a cross-shaped movable frame, which is slidably disposed at the upper opening of the feed cylinder. The movable frame is fixedly connected to the upper end of the sliding rod, and a spring sleeved on the sliding rod is fixedly disposed between the movable frame and the feed cylinder.

[0017] According to an advantageous embodiment, the liquid storage chamber is connected to the inner cavity of the connecting ring via a connecting pipe, and all spray elements 2 are fixedly installed at the lower end of the liquid storage chamber via a connecting frame. The spray elements 2 are cylindrical and their axes are parallel to the axis of the disc. The spray elements 2 are connected to the inner cavity of the liquid storage chamber.

[0018] The lower side of the spray component has multiple liquid outlet holes equidistantly distributed front and back, and all the liquid outlet holes are located directly above the inner wall of the disc in the circumferential direction.

[0019] According to an advantageous embodiment, all of the two spray elements are distributed along a parabolic trajectory from top to bottom, and the parabolic trajectory is the same as the trajectory of the material falling from top to bottom after the pusher plate obstructs the material.

[0020] According to an advantageous embodiment, the length of all the spray elements 2 gradually decreases from top to bottom, the front ends of all the spray elements 2 are flush, and the rear ends of all the spray elements 2 together form a distribution trajectory that is the same as the trajectory of the material falling from the pusher plate.

[0021] According to an advantageous embodiment, the separation assembly includes a mounting frame, on which a mounting frame is fixedly mounted within a disk via a mounting bracket. The mounting frame is U-shaped with its opening facing to the left. Multiple separation rods extending laterally along their axes are disposed within the mounting frame, and all separation rods are equidistantly distributed along the axial direction of the disk.

[0022] According to an advantageous embodiment, the front end face of the rear horizontal section of the mounting frame has two left-right distributed slots, and the rear end face of the front horizontal section of the mounting frame has two left-right distributed slots, which penetrate the upper end of the mounting frame.

[0023] All the aforementioned separating rods are fixedly mounted on two connecting bars distributed on the left and right, and locking blocks are fixedly mounted on both the front and rear sides of the connecting bars.

[0024] In summary, the present invention has the following beneficial effects: the present invention sets up a primary liquid outlet zone during material feeding, and sprays liquid in a circular manner through four sprayers, covering the entire area of ​​the inner cavity of the feeding cylinder. The secondary liquid outlet zone is set in the disc, which conforms to the trajectory distribution of the material that falls freely after being pushed by the pusher plate. The secondary liquid outlet process ensures that the material and liquid are fully and evenly mixed, which is added to the granulation process and ensures the adhesion effect, thereby improving the overall granulation quality.

[0025] Secondly, by using a separation component to screen pellets that meet the granulation particle size requirement, as well as the remaining pellets and materials, the impact of pellets that meet the granulation particle size requirement continuously rolling on the subsequent granulation process is reduced, and the contact probability between the remaining materials and between the remaining pellets and the materials is increased, thereby improving granulation efficiency and quality. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0027] Figure 1 A three-dimensional structural schematic diagram of a disc granulator based on desulfurized gypsum composite particles provided according to an embodiment of the present invention is shown.

[0028] Figure 2 A front view of a disc granulator based on desulfurized gypsum composite particles according to an embodiment of the present invention is shown.

[0029] Figure 3 A partial cross-sectional perspective view of the feed cylinder, cleaning blade, and guide member provided according to an embodiment of the present invention is shown.

[0030] Figure 4 A three-dimensional structural diagram of the spray component and the connecting ring provided according to an embodiment of the present invention is shown.

[0031] Figure 5 A partial cross-sectional front view of the feed cylinder, cleaning blade, and guide member provided according to an embodiment of the present invention is shown.

[0032] Figure 6 A partial cross-sectional side view of the disc, spray component 2, and pusher plate provided according to an embodiment of the present invention is shown.

[0033] Figure 7 A three-dimensional schematic diagram of the liquid storage chamber and the spraying component 2 provided according to an embodiment of the present invention is shown.

[0034] Figure 8 A partially exploded cross-sectional view of the structure between the disk, the separating rod, and the mounting frame provided according to an embodiment of the present invention is shown.

[0035] The above-mentioned attached drawings include the following reference numerals: 1. Frame; 2. Disc; 3. Feeding assembly; 30. Feeding cylinder; 300. Outer expansion groove; 301. Guide component; 302. Liquid outlet hole one; 303. Cleaning plate; 304. Sliding rod; 305. Movable frame; 306. Spring; 307. Connecting ring; 31. Spray component one; 32. Liquid storage chamber; 33. Spray component two; 330. Liquid outlet hole two; 4. Separation assembly; 40. Mounting frame; 41. Separation rod; 42. Slot one; 43. Slot two; 44. Locking block; 5. Conveying equipment; 6. Push plate. Detailed Implementation

[0036] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0037] like Figure 1 As shown, a disc 2 granulator based on desulfurized gypsum composite particles is used in conjunction with a conveying device 5 for feeding. It includes: a frame 1, on which a disc 2 is rotatably mounted. The disc 2 has an opening facing forward and is tilted forward from top to bottom. The conveying device 5 is located on the left side of the disc 2. A feeding component 3 that docks with the conveying device 5 is provided inside the disc 2.

[0038] like Figure 1 , Figure 2 and Figure 3 As shown, the feeding assembly 3 includes a feeding cylinder 30 with openings at both the top and bottom. The upper opening of the feeding cylinder 30 is connected to the conveying device 5, and the lower opening faces the inside of the disc 2. Spraying elements 31 penetrating the feeding cylinder 30 are provided around the lower part of the feeding cylinder 30. The liquid outlet direction of the spraying elements 31 is horizontally towards the center of the feeding cylinder 30.

[0039] like Figure 1 and Figure 2 As shown, a liquid storage chamber 32 is provided on the right side of the feeding cylinder 30. The liquid storage chamber 32 is located between the pusher plate 6 and the feeding cylinder 30. Below the liquid storage chamber 32, multiple spray nozzles 33 are arranged along a parabolic trajectory, with the liquid outlet direction of the spray nozzles 33 pointing vertically downwards. It should be noted that both spray nozzles 31 and 33 are pumped into the liquid by an external water pump (not shown in the figure).

[0040] like Figure 1 and Figure 2 As shown, the inner cavity of the disc 2 is rotatably equipped with a separation component 4 for separating large particles and powder. The separation component 4 is located below the liquid storage cavity 32 and is fixedly connected to the frame 1.

[0041] During the feeding process of the conveying equipment 5 and the feeding component 3, the material is coated with water after passing through the rectangular area formed by the four spraying components 31. During the granulation process of the rotating disc 2, the spraying component 33 sprays liquid onto the material that is pushed by the pusher plate 6 and falls in a parabolic trajectory. Meanwhile, the separation component 4 continuously separates large particles and powder.

[0042] It should be further explained that the disc 2 is rotatably mounted on the frame 1 via a rotating shaft. The frame 1 is equipped with a drive motor, which drives the disc 2 to rotate synchronously via the rotating shaft. Thus, the disc 2 can rotate the powder fed into it and perform granulation. Next, the granulation raw material is fed into the disc 2 via a conveying device 5. The feeding process of the conveying device 5 is controlled by the corresponding motor of its internal control terminal, thereby controlling the feeding process. Above the feeding cylinder 30, there is a guide 301 that is larger at the top and smaller at the bottom for guiding the feeding. The above components and operation process are all external existing technologies. In addition, during the granulation process, through the relative movement between the disc 2 and the pusher plate 6, the pusher plate 6 scrapes the material moving along the edge of the disc 2, causing the material to fall to the bottom of the disc 2 in a parabolic trajectory. The above-mentioned material turning action accelerates the adhesion process between materials and speeds up the granulation process. All of these are external existing technologies and will not be elaborated further.

[0043] During operation, the drive motor first rotates the disc 2 synchronously. Then, the conveying device 5 transports the granulation raw materials to the feeding assembly 3, causing the material to fall from the feeding cylinder 30 into the disc 2. The disc 2 drives the material inside to rotate synchronously. During the feeding and rotation of the disc 2, an external water pump pumps the liquid used for granulation mixing (such as water or binder liquid, hereinafter collectively referred to as liquid) through spray nozzles 31 and 33, thus forming a primary liquid outlet zone in the feeding cylinder 30. As the material falls in a parabolic trajectory, a secondary liquid outlet zone is formed. The two liquid outlet zones are aligned with the drop characteristics (trajectory distribution) of the corresponding material, ensuring that the material and liquid are fully mixed and form the required pellets, accelerating the granulation process and ensuring adhesion (improving granulation quality). As the granulation operation continues, the separation component 4 separates pellets that meet the required particle size from those that do not, allowing the pellets that do not meet the required particle size to continue to be mixed and granulated. This facilitates subsequent collection while reducing the impact of pellets that meet the required particle size on the subsequent granulation process through separation, thereby ultimately improving the efficiency and quality of the granulation operation.

[0044] Compared to the existing method of directly pumping liquid into the system through a single external pipe, this technical solution employs a two-stage liquid outlet zone and targets the liquid spraying by conforming to the material movement characteristics of the corresponding area. This increases the contact between the material and the liquid, facilitating the adhesion between materials to form the desired pellets and improving granulation quality. It avoids the need for long-term rolling to achieve the granulation effect of material adhesion and mixing, as required by existing technologies. Furthermore, in the existing granulation process, the pellets formed accumulate inside the lower part of the disc 2 and continue to rotate with the material. Therefore, during continuous granulation, the formed pellets can affect the adhesion between subsequent materials, impacting granulation efficiency and quality.

[0045] like Figure 1 , Figure 2 and Figure 5As shown, in order to facilitate the accurate dropping of materials from the feeding cylinder 30 into the disc 2, the feeding cylinder 30 is vertically oriented. In order to reduce the situation where materials fall and adhere to the spraying component 31, an outer expansion groove 300 is provided on the lower end face of the feeding cylinder 30, and the spraying component 31 is flush with the inner wall of the outer expansion groove 300.

[0046] A guide 301 is fixedly installed inside the feed cylinder 30. The guide 301 is a square ring, and the upper opening of the guide 301 is larger than the lower opening.

[0047] like Figure 4 As shown, the spray element 31 is fixedly sleeved on the lower end of the feed cylinder 30. The four spray elements 31 are connected by a connecting ring 307, which is connected to an external water pump (not shown in the figure). Each spray element 31 has multiple equidistant liquid outlet holes 302 on its end face facing the center of the feed cylinder 30.

[0048] During operation, as the material is continuously fed through the feeding cylinder 30, an external water pump pumps liquid into the connecting ring 307, which then enters the four spray nozzles 31. Finally, the liquid is sprayed out through the outlet hole 302 into the interior of the feeding cylinder 30, forming a primary liquid outlet area that covers the entire interior of the feeding cylinder 30. The spray area covers the horizontal cross-section of the inner cavity of the feeding cylinder 30, ensuring that the material can contact and mix with the liquid to the maximum extent, thereby improving the adhesion effect between subsequent materials. It should be noted that the outlet hole 302 was determined by those skilled in the art through multiple tests. The liquid pumped in by the external water pump forms a horizontal liquid surface after passing through the outlet hole 302. The liquid is then sprayed out simultaneously by the four spray nozzles 31, and the resulting area can cover the interior of the feeding cylinder 30. This is a known technical feature and will not be elaborated further.

[0049] Secondly, the guide component 301 causes the material to gather together and reduces the material's contact with the inner wall of the outer expansion tank 300 during the downward falling process, thus avoiding the problem of liquid clogging the outlet hole 302.

[0050] like Figure 3 and Figure 5 As shown, an annular cleaning plate 303 is slidably disposed inside the outer expansion groove 300. The lower end of the cleaning plate 303 is chamfered. Four sliding rods 304 are slidably disposed inside the feeding cylinder 30. The lower section of the sliding rods 304 is fixedly connected to the cleaning plate 303. A drive assembly is disposed above the four sliding rods 304.

[0051] like Figure 3 and Figure 5As shown, the drive assembly includes a cross-shaped movable frame 305. The movable frame 305 is slidably mounted on the upper opening of the feeding cylinder 30. The movable frame 305 is fixedly connected to the upper end of the sliding rod 304. A spring 306, sleeved on the sliding rod 304, is fixedly mounted between the movable frame 305 and the feeding cylinder 30. To prevent material accumulation on the movable frame 305 and to prevent the cleaning plate 303 from obstructing the spray component 31 for a long time, the upper ends of the four branches of the movable frame 305 are all triangular inclined surfaces with the apex facing upwards. It should be noted that the movable frame 305 is supported by the elastic deformation characteristics of the spring 306, and the cleaning plate 303 is kept above the spray component 31. That is, when the movable frame 305 is not subjected to the impact force during feeding, the cleaning plate 303 does not perform cleaning. Therefore, the spring 306 was obtained by professional personnel through multiple tests and belongs to external existing technology, which will not be elaborated further.

[0052] During operation, as the material is fed into the feeding cylinder 30, the free fall of the material impacts the movable frame 305 downwards. This causes the movable frame 305 to move the sliding rod 304 downwards simultaneously, deforming the spring 306. The sliding rod 304 then moves the cleaning plate 303 downwards to clean the corresponding liquid outlet 302, preventing blockage at the liquid outlet 302. After cleaning, when the impact of the material on the movable frame 305 is less than the elastic force generated by the deformation of the spring 306, the elastic force generated by the deformation of the spring 306 causes the movable frame 305 to reset the cleaning plate 303. Therefore, the intermittent impact of the material on the movable frame 305 during the feeding process causes the cleaning plate 303 to intermittently clean the liquid outlet 302. In summary, the impact effect at the liquid outlet 302, the drainage of the guide 301 to prevent blockage, and the intermittent cleaning action of the cleaning plate 303 all triplely ensure that the liquid outlet 302 will not be blocked.

[0053] like Figure 2 As shown, the liquid storage chamber 32 is connected to the inner cavity of the connecting ring 307 through a connecting pipe. All spray elements 33 are fixedly installed at the lower end of the liquid storage chamber 32 through a connecting frame. The spray elements 33 are cylindrical and their axis is parallel to the axis of the disc 2. The spray elements 33 are connected to the inner cavity of the liquid storage chamber 32.

[0054] like Figure 7 As shown, the spray component 2 33 has multiple liquid outlet holes 2 330 distributed equidistantly on its lower side, and all liquid outlet holes 2 330 are located directly above the inner wall of the disc 2 circumferentially.

[0055] like Figure 2 and Figure 7As shown, all the spray elements 33 are distributed along a parabolic trajectory from top to bottom within the plane of the bottom end face of the disc 2, and this parabolic trajectory is the same as the trajectory of the material falling from top to bottom after being obstructed by the pusher plate 6. It should be noted that the trajectory distribution of the spray elements 33 is based on the trajectory formed by the material falling after being simulated by professionals, and therefore is similar to the material falling trajectory in the actual granulation process. It is an external existing technical feature and will not be discussed further.

[0056] like Figure 6 and Figure 7 As shown, the length of all the spray components 33 gradually decreases from top to bottom, the front ends of all the spray components 33 are flush, and the rear ends of all the spray components 33 together form a distribution trajectory in the front and rear planes that is the same as the trajectory of the material falling from the pusher plate 6.

[0057] During operation, an external water pump pumps liquid into the storage chamber 32 through the connecting ring 307 and connecting pipe, and finally into each spray element 33 and pumps it out from each outlet hole 330. This forms a secondary outlet zone that is identical to the parabolic trajectory of the material after being pushed by the pusher plate 6. This conforms to the material feeding process, increases the adhesion area between the material and the liquid, and thus significantly improves the adhesion efficiency between the materials. Finally, the two outlet zones formed in conjunction with the spray element 31 comprehensively improve the efficiency and quality of material granulation.

[0058] It should be further explained that the liquid storage chamber 32 only serves to supply liquid into each spray component 33. Any component with the same effect can be substituted, and the operator can choose according to the specific operation. Secondly, valves can be installed at the connecting pipe and at the connection between the connecting ring 307 and the spray component 31. The valves are controlled by an external existing control module. When spray components 31 and 33 need to perform spraying operations, the external existing control module sends a signal to control the servo motor at the corresponding valve to open or close the corresponding valve, thereby controlling the liquid outlet position. The components and technologies in the above process are all external existing technologies, which are only extended and supplemented here, and will not be elaborated further.

[0059] like Figure 1 and Figure 8 As shown, the separation component 4 includes a mounting frame 40. The mounting frame 40 is fixedly mounted on the frame 1 within the disc 2 via a mounting bracket. The mounting frame 40 is U-shaped with its opening facing to the left. Multiple separation rods 41 extending left and right along their axes are disposed within the mounting frame 40, and all separation rods 41 are equidistantly distributed along the axial direction of the disc 2.

[0060] During operation, as the disc 2 rotates continuously and the pusher plate 6 continuously pushes the material, pellets that meet the granulation size requirements fall into the mounting frame 40 under gravity. Multiple gaps formed by all the separating rods 41 prevent them from falling further. Pellets and materials smaller than the granulation size pass through the gaps between the separating rods 41 and fall to the lower end of the disc 2, where they continue to rotate and granulate. This process separates pellets that meet the granulation size requirements from those smaller than the granulation size, reducing the likelihood of contact between the remaining material and the pellets and materials smaller than the granulation size due to the rolling of pellets that meet the granulation size requirements. This accelerates the granulation process and ensures thorough mixing. In summary, this improves granulation efficiency and quality, and facilitates subsequent pellet collection.

[0061] like Figure 8 As shown, in order to prevent materials from getting stuck at the top of the mounting frame 40, a rib with a right-angled triangle cross-section is fixedly provided at the top of the mounting frame 40 near the inner side of the disc 2. Two left-right distributed slots 42 are opened on the front end face of the rear horizontal section of the mounting frame 40, and two left-right distributed slots 43 are opened on the rear end face of the front horizontal section of the mounting frame 40. The slots 43 penetrate through the top of the mounting frame 40.

[0062] All the aforementioned separating rods 41 are fixedly mounted on two connecting strips distributed to the left and right. Each connecting strip has a locking block 44 fixedly mounted on both its front and rear sides. The side of the locking block 44 that engages with the locking slot 42 or the locking slot 43 is chamfered. It should be noted that, for the granulation particle size, the corresponding separating rod 41 is selected before operation, ensuring that the distance between adjacent separating rods 41 is less than the maximum particle size to be granulated. Furthermore, the distance between adjacent separating rods 41 is selected based on the required particle size distribution. All granulation operations are carried out by the operator selecting the appropriate spacing of the separating rods 41 according to actual operational needs.

[0063] During operation, the separator rod 41 is detachable, making it easy to replace the separator rod 41 with different gaps to meet the operational needs of different granulation particle sizes. At the same time, the separator rod 41 can be removed after operation, making it easy to clean the separator rod 41 and avoid the problem of material adhering to the separator rod 41 affecting subsequent granulation operations.

[0064] It should be further noted that, compared to the existing technology of pumping liquid into a single pipe and tumbling for granulation, this technical solution uses a two-stage liquid outlet zone that conforms to the material's falling trajectory, combined with the separation effect of the separation component 4. This increases the contact area between the liquid and the material at the outlet, allowing for thorough mixing and improving granulation efficiency and quality. Furthermore, the separation component 4's method of screening pellets that meet the granulation size requirements, residual pellets, and other materials increases the contact probability between residual materials and between pellets and other materials, further enhancing granulation efficiency and quality. Additionally, the added components are all external, existing mechanical parts, which can be used long-term after a single installation. Therefore, compared to the economic benefits of improved granulation efficiency and quality, the cost of the added components is negligible. In summary, this technical solution is a specific improvement based entirely on and addressing the shortcomings of existing technologies.

[0065] In the description of this invention, it should be understood that directional terms such as "front, back, up, down, left, right," "horizontal, vertical, horizontal," and "top, bottom," indicating directions or positional relationships, are generally based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of this invention. The directional terms "inner" and "outer" refer to the inner or outer contours relative to the outline of each component itself.

[0066] Furthermore, the terms "first," "second," "number one," and "number two" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "number one," or "number two" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0067] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," "installed," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can be mechanical or electrical connections. They can be direct connections or indirect connections through an intermediate medium, and can represent internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0068] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A disc granulator based on desulfurized gypsum composite particles, used in conjunction with a conveying device for feeding, characterized in that, include: A frame on which a disc is rotatably mounted, the disc opening facing forward and the disc tilting forward from top to bottom, a conveying device located on the left side of the disc, and a feeding assembly that docks with the conveying device inside the disc; The feeding assembly includes a feeding cylinder with openings at both the top and bottom. The upper opening of the feeding cylinder is connected to the conveying equipment, and the lower opening faces the inside of the disc. A spraying element is provided around the lower part of the feeding cylinder, penetrating the feeding cylinder. The liquid outlet direction of the spraying element is horizontally towards the center of the feeding cylinder. A liquid storage chamber is provided on the right side of the feeding cylinder. The liquid storage chamber is located between the pusher plate and the feeding cylinder. Below the liquid storage chamber, there are multiple spray nozzles II distributed along a parabolic trajectory. The liquid outlet direction of the spray nozzles II is vertically downward. The inner cavity of the disc is rotatably equipped with a separation component for separating large particles from powder. During the feeding process, the material is fully adhered and mixed with the liquid after passing through the rectangular area formed by the four spraying components. During the granulation process, the second spraying component sprays the liquid onto the material that is pushed by the pusher plate and falls in a parabolic trajectory. Meanwhile, the separation component continuously separates large particles from powder.

2. The disc granulator based on desulfurized gypsum composite particles according to claim 1, characterized in that: The feeding cylinder is vertically oriented, and an outer expansion groove is opened on the lower end face of the feeding cylinder. The spraying component is flush with the inner wall of the outer expansion groove. A guide is fixedly installed inside the feeding cylinder. The guide is a square ring with an upper opening larger than the lower opening.

3. The disc granulator based on desulfurized gypsum composite particles according to claim 1, characterized in that: The spray element is fixedly sleeved on the lower end of the feed cylinder. The four spray elements are connected by a connecting ring. The end face of the spray element facing the center of the feed cylinder has multiple equally spaced liquid outlet holes.

4. A disc granulator based on desulfurized gypsum composite particles according to claim 2, characterized in that: An annular cleaning plate is slidably arranged inside the outer expansion groove. The lower end of the cleaning plate is chamfered. Four sliding rods are slidably arranged inside the feeding cylinder. The lower section of the sliding rods is fixedly connected to the cleaning plate. A drive assembly is arranged above the four sliding rods.

5. A disc granulator based on desulfurized gypsum composite particles according to claim 4, characterized in that: The drive assembly includes a cross-shaped movable frame. The movable frame is slidably mounted on the upper opening of the feed cylinder. The movable frame is fixedly connected to the upper end of the sliding rod. A spring sleeved on the sliding rod is fixedly mounted between the movable frame and the feed cylinder.

6. A disc granulator based on desulfurized gypsum composite particles according to claim 3, characterized in that: The liquid storage chamber is connected to the inner cavity of the connecting ring through a connecting pipe. All spray components are fixedly installed at the lower end of the liquid storage chamber through a connecting frame. The spray component is cylindrical and its axis is parallel to the axis of the disc. The spray component is connected to the inner cavity of the liquid storage chamber. The lower side of the spray component has multiple liquid outlet holes equidistantly distributed front and back, and all the liquid outlet holes are located directly above the inner wall of the disc in the circumferential direction.

7. A disc granulator based on desulfurized gypsum composite particles according to claim 1, characterized in that: All of the spray components are distributed along a parabolic trajectory from top to bottom, and this parabolic trajectory is the same as the trajectory of the material falling from top to bottom after the pusher plate obstructs the material.

8. A disc granulator based on desulfurized gypsum composite particles according to claim 1, characterized in that: The length of all the spray components 2 gradually decreases from top to bottom, the front ends of all the spray components 2 are flush, and the rear ends of all the spray components 2 together form a distribution trajectory that is the same as the trajectory of the material falling from the push plate.

9. A disc granulator based on desulfurized gypsum composite particles according to claim 1, characterized in that: The separation component includes a mounting frame. The mounting frame is fixedly mounted on the frame within the disk via a mounting bracket. The mounting frame is U-shaped with its opening facing to the left. Multiple separation rods extending left and right along their axes are disposed within the mounting frame, and all separation rods are equidistantly distributed along the axial direction of the disk.

10. A disc granulator based on desulfurized gypsum composite particles according to claim 9, characterized in that: The front end face of the rear horizontal section of the mounting frame has two left-right distributed slots, and the rear end face of the front horizontal section of the mounting frame has two left-right distributed slots, which penetrate the upper end of the mounting frame. All the aforementioned separating rods are fixedly mounted on two connecting bars distributed on the left and right, and locking blocks are fixedly mounted on both the front and rear sides of the connecting bars.

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