Phosphorite screening desliming cyclone desliming device

Abstract

The utility model relates to mineral screening technical field, concretely is phosphorite screening desliming cyclone type desliming device, including cyclone, the input end of cyclone is installed with screening mechanism, and the screening mechanism includes main through pipe, opening and closing subassembly and collection jar, and the top end of main through pipe is equipped with top boss, and the top boss is equipped with screening pipe in, and a plurality of are fixed with the inclined in screening pipe and present the baffle rod, and opening and closing subassembly is fixed by a pair of casing and is formed into the upside -down symmetry shape. This phosphorite screening desliming cyclone type desliming device, through setting up screening mechanism at cyclone input end, can carry out preposition processing to the slurry that enters cyclone, and the larger granular substance in slurry is intercepted with the baffle rod in screening mechanism, and the large granular substance after interception can be collected in the collection jar through the connecting pipe, opening and closing subassembly, can avoid the phosphorite cyclone desliming when part larger granular substance directly enters the inside of cyclone, reduces the risk of the flow passage of cyclone and is blocked by granular substance.

Description

Technical Field

[0001] This utility model relates to the field of mineral screening technology, specifically to a cyclone desliming device for screening and desliming phosphate ore. Background Technology

[0002] In the phosphate rock processing flow, screening is a crucial step in separating phosphate rock from impurities, while desliming is an important step in improving the quality of phosphate rock. Cyclone desliming, based on the principle of fluid centrifugal force, is commonly used in the mud-water separation operation after phosphate rock screening. This method allows the muddy phosphate slurry to form a high-speed rotating flow field within the cyclone structure, causing the mud and phosphate rock particles of different densities to separate into strata, ultimately completing the separation and discharge of the mud, providing a clean raw material basis for subsequent deep processing of phosphate rock.

[0003] Utility model patent CN218359885U discloses a novel hydrocyclone desliming device. This device includes a main body and a discharge pipe. The discharge pipe is fixedly installed on the lower side of the main body. A baffle is fixedly installed inside the discharge pipe, with a settling port in the middle. A fixing ring is installed on the lower side of the baffle. Multiple connecting rods are fixedly installed on the side of the fixing ring near the baffle, and the other ends of the connecting rods are fixedly connected to a square plate. Multiple rotating plates are installed between the fixing ring and the baffle, with one end of each rotating plate rotatably connected to a corresponding connecting rod. A rotating ring is installed on the outer side of the fixing ring, rotatably connected to the baffle. Transmission mechanisms for pulling the rotating plates are installed on both sides of the rotating ring. This device allows for easy adjustment of the settling port diameter according to production needs, saving time and effort.

[0004] In the case of hydrocyclone desliming in phosphate ore, some larger particles in the slurry can easily enter the main body of the desliming device with the water flow. This may cause blockage of the internal flow channel of the device, or affect the subsequent desliming effect because the particles are not separated in advance. In view of this, we propose a hydrocyclone desliming device for phosphate ore screening. Utility Model Content

[0005] The purpose of this invention is to provide a cyclone desliming device for screening and desliming phosphate ore, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A hydrocyclone desliming device for screening phosphate ore includes a hydrocyclone. A screening mechanism is installed at the input end of the hydrocyclone. The screening mechanism includes a main pipe connected to the input end of the hydrocyclone via a flange, an opening and closing component connected below the main pipe, and a collection tank threaded to the bottom of the opening and closing component. The screening mechanism intercepts large particles of impurities in the slurry and discharges them downward into the collection tank for collection. The opening and closing component is used to facilitate the disassembly and cleaning of the collection tank when it is closed.

[0008] The top of the main pipe is provided with a top protrusion, and the top of the top protrusion is provided with a sleeve cavity that is connected to the main pipe. A screening pipe is sleeved in the sleeve cavity. A connecting pipe is connected to the bottom surface of the main pipe. The bottom end of the screening pipe is provided with a bottom opening in the shape of an inverted V. The bottom opening is connected to the connecting pipe. Several baffles are fixed at an equal interval near the edge of the opening of the bottom opening near the hydrocyclone.

[0009] The opening and closing assembly consists of a pair of shells that are symmetrically arranged and fixed together with bolts. The shells have movable cavities. The bottom end of the connecting pipe is fixedly connected to the top shell and is in communication with it. The bottom end of the bottom shell has a threaded hole, and the opening of the collection tank is threaded into the threaded hole.

[0010] Preferably, a limiting groove is provided on the inner walls of both the left and right sides of the sleeve cavity, and a fixing plate is fixed on the top outer surface of the screening tube. The left and right edges of the fixing plate protrude from the outer surface of the screening tube and can be inserted into the two limiting grooves respectively. A lifting groove is provided on the fixing plate, and the screening tube can be lifted out of the top protrusion through the lifting groove.

[0011] In this configuration, the limiting groove and the fixing plate work together to limit the position of the screening tube, and the lifting groove facilitates the disassembly and replacement of the screening tube.

[0012] Preferably, a top cover is bolted to the top of the top protrusion, and after the top cover is installed, the top of the fixing plate abuts against the bottom surface of the top cover.

[0013] In this configuration, the top cover prevents the screening tube from detaching upwards, and the bolted connection facilitates disassembly for replacement of the screening tube.

[0014] Preferably, the top end of the baffle is far from the cyclone separator, and the bottom end of the baffle is close to the cyclone separator, so that the baffle is inclined from top to bottom towards the cyclone separator.

[0015] In this setup, the tilting baffle can intercept large particles of impurities without obstructing the flow of small-molecule mud to the hydrocyclone.

[0016] Preferably, the left and right edges of the housing are provided with protruding edges, and two protruding edges that are close to each other on the two housings are fixedly connected by bolts.

[0017] In this design, the raised edge increases the connection area of ​​the housing, making the bolt fixing more secure and improving the structural strength of the opening and closing assembly.

[0018] Preferably, a sealing plate is fitted between the two housings. The length of the sealing plate is less than the length of the movable cavity. The sealing plate can move along the length of the movable cavity. A pull rod is fixed to the tail end of the sealing plate. The pull rod passes through the tail end of the opening and closing assembly. A rubber ring is embedded on the top surface of the sealing plate. When the pull rod is pushed to make the sealing plate cover the bottom end of the connecting pipe, the bottom end of the connecting pipe and the sealing plate are sealed by the rubber ring. At this time, the opening and closing assembly is in a closed state. When the pull rod is pulled outward, the sealing plate moves away from the connecting pipe. At this time, the screening mechanism is in a connected state.

[0019] In this configuration, the pull rod facilitates the movement of the sealing plate to switch between open and closed states, while the rubber ring enhances the sealing performance when closed.

[0020] Preferably, a sealing ring is tightly bonded between the edges of the two adjacent end faces of the two housings, and a rubber stop is embedded at the end position of the two movable cavities away from the connecting pipe, with the pull rod passing through the rubber stop;

[0021] In this configuration, the sealing ring prevents leakage at the joint of the housing, and the rubber stop seals the point where the pull rod passes through the housing.

[0022] Preferably, a viewing window is provided on the outer surface of the collection tank;

[0023] In this setting, the viewing window allows for easy observation of the accumulation of impurities inside the collection tank, making it easier to determine whether cleaning is necessary.

[0024] Compared with the prior art, the beneficial effects of this utility model are:

[0025] This phosphate ore screening and desliming hydrocyclone desliming device, by setting a screening mechanism at the input end of the hydrocyclone, can pre-treat the slurry entering the hydrocyclone. The baffle in the screening mechanism intercepts larger particles in the slurry. The intercepted large particles can be discharged into the collection tank through the connecting pipe and the opening and closing component, which can prevent some larger particles from directly entering the hydrocyclone during phosphate ore hydrocyclone desliming and reduce the risk of particle blockage of the hydrocyclone channel. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2 This is a schematic diagram of the screening mechanism in this utility model;

[0028] Figure 3 This is an exploded view of the main conduit in this utility model;

[0029] Figure 4This is a schematic diagram of the structure of the screening tube in this utility model;

[0030] Figure 5 This is an exploded view of the opening and closing component in this utility model;

[0031] Figure 6 This is a schematic diagram of the structure of the collection tank in this utility model;

[0032] The meanings of the labels in the diagram are as follows:

[0033] 100. Hydrocyclone;

[0034] 200. Screening mechanism; 210. Main pipe; 211. Top protrusion; 2111. Cavity; 2112. Limiting groove; 2113. Top cover; 212. Screening pipe; 2121. Bottom opening; 2122. Stop bar; 2123. Fixing plate; 2124. Lifting trough; 220. Opening and closing assembly; 221. Housing; 2211. Movable cavity; 2212. Threaded hole; 2213. Raised edge; 2214. Sealing ring; 2215. Rubber stop; 222. Sealing plate; 2221. Pull rod; 2222. Rubber ring; 230. Collection tank; 231. Viewing window. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0037] Please see Figures 1-6A hydrocyclone desliming device for phosphate rock screening includes a hydrocyclone 100. A screening mechanism 200 is installed at the input end of the hydrocyclone 100. The screening mechanism 200 includes a main pipe 210 connected to the input end of the hydrocyclone 100 via a flange, an opening and closing assembly 220 connected below the main pipe 210, and a collection tank 230 threadedly connected to the bottom end of the opening and closing assembly 220. The main pipe 210 serves as a transition channel for slurry before it enters the hydrocyclone 100, providing a stable flow path for subsequent screening. The opening and closing assembly 220 can switch between on and off states, ensuring normal impurity discharge while providing a connection for the collection tank. The collection tank 230 is designed for easy disassembly and cleaning. The collection tank 230 is connected by threads for quick disassembly and assembly, which facilitates the timely emptying of impurities trapped inside. The screening mechanism 200 intercepts large particles of impurities in the mud and discharges them downward into the collection tank 230 for collection. A viewing window 231 is provided on the outer surface of the collection tank 230, which can intuitively display the accumulation of impurities inside the collection tank 230, making it convenient for operators to judge whether cleaning is necessary and to avoid affecting the screening effect due to overflow of impurities. The opening and closing component 220 is used to facilitate the disassembly and cleaning of the collection tank 230 when it is closed.

[0038] like Figures 2-4 As shown, in this utility model, the top end of the main pipe 210 is provided with a top protrusion 211, and the top end of the top protrusion 211 has a cavity 2111 that communicates with the main pipe 210. A screening pipe 212 is fitted in the cavity 2111. The top protrusion 211 provides installation space for the screening pipe 212 through the cavity 2111, while ensuring the connectivity between the screening pipe 212 and the main pipe 210, so that the slurry can flow smoothly from the screening pipe 212 into the main pipe 210. Limiting grooves 2112 are provided on the inner walls of the left and right sides of the cavity 2111. A fixing plate 2123 is fixed on the top outer surface of the screening pipe 212. The left and right sides of the fixing plate 2123 are provided with limiting grooves 2112. The edges protrude from the outer surface of the screening tube 212 and can be inserted into the two limiting grooves 2112 respectively. The cooperation between the limiting grooves 2112 and the fixing plate 2123 can limit the installation position of the screening tube 212, prevent the screening tube 212 from shifting or shaking during use, and ensure screening stability. The fixing plate 2123 is provided with a lifting groove 2124. The screening tube 212 can be lifted out of the top protrusion 211 through the lifting groove 2124 for replacement. The lifting groove 2124 provides a force point for disassembling the screening tube 212, making the removal of the screening tube 212 more convenient and reducing maintenance difficulty.

[0039] like Figure 2 and Figure 3As shown, specifically, the top of the top protrusion 211 is bolted to the top of the top cover 2113. After the top cover 2113 is installed, the top of the fixing plate 2123 abuts against the bottom surface of the top cover 2113. The top cover 2113 is fixed by bolts to achieve detachable installation. This can both limit the fixing plate 2123 axially to prevent the screening tube 212 from coming out of the sleeve cavity 2111 upwards, and allow for quick disassembly when the screening tube 212 needs to be replaced, without affecting maintenance efficiency.

[0040] like Figure 3 and Figure 4 As shown, furthermore, a connecting pipe 213 is connected to the bottom surface of the main pipe 210, and the bottom end of the screening pipe 212 has an inverted V-shaped bottom opening 2121, which is connected to the connecting pipe 213. The inverted V-shaped bottom opening 2121 can increase the contact area between the mud and the subsequent interception structure, and at the same time guide the mud to flow towards the connecting pipe 213, ensuring that impurities can be smoothly discharged into the connecting pipe 213. The connecting pipe 213 can serve as a transition channel for impurities to flow from the main pipe 210 to the opening and closing component 220, realizing the directional transportation of impurities. Several baffles 2122 are fixed at an angle near the edge of the hydrocyclone 100 in the bottom opening 2121. The top of the baffles 2122 is away from the hydrocyclone 100, and the bottom of the baffles 2122 is close to the hydrocyclone 100, so that the baffles 2122 are inclined from top to bottom and gradually approach the hydrocyclone 100. The inclined baffles 2122 can intercept large particles of impurities in the mud, while not affecting the normal flow of small molecules of mud to the hydrocyclone 100. The evenly spaced arrangement can ensure the uniformity of interception and avoid local impurity accumulation and blockage.

[0041] like Figure 2 and Figure 5 As shown, the opening and closing assembly 220 is formed by bolts fixing a pair of shells 221 symmetrically arranged vertically. The symmetrical shells 221 are fixed together to form a complete opening and closing assembly 220, which facilitates disassembly and maintenance of the internal structure and ensures the overall sealing of the assembly. The shells 221 have a movable cavity 2211. The bottom end of the connecting pipe 213 is fixedly connected to the top shell 221 and is in communication with it. The movable cavity 2211 provides space for the movement of the subsequent sealing plate 222, and at the same time ensures that the impurities transported by the connecting pipe 213 can smoothly enter the opening and closing assembly 220. The bottom end of the bottom shell 221 has a threaded hole 2212. The mouth of the collection tank 230 is threadedly connected to the threaded hole 2212. The threaded hole 2212 and the thread of the collection tank 230 are engaged to realize quick connection and disassembly of the two, which facilitates timely cleaning of impurities in the collection tank 230.

[0042] like Figure 5As shown, it is worth noting that a sealing plate 222 is fitted between the two housings 221. The length of the sealing plate 222 is less than the length of the movable cavity 2211. The sealing plate 222 can move along the length of the movable cavity 2211. The fit between the length of the sealing plate 222 and the movable cavity 2211 ensures that the sealing plate 222 can move smoothly within the movable cavity 2211, providing a basis for the on / off switching of the opening and closing assembly 220. A pull rod 2221 is fixed to the tail end of the sealing plate 222. The pull rod 2221 passes through the tail end of the opening and closing assembly 220. The pull rod 2221 provides a force point for the movement of the sealing plate 222. The operator can easily control the movement by pulling the pull rod 2221. The position of the sealing plate 222 enables convenient switching of the opening and closing assembly 220. A rubber ring 2222 is embedded on the top surface of the sealing plate 222. When the pull rod 2221 is pushed, causing the pull rod 2221 to move the sealing plate 222 to cover the bottom end of the connecting pipe 213, the bottom end of the connecting pipe 213 and the sealing plate 222 are sealed by the rubber ring 2222. The rubber ring 2222 can enhance the sealing performance between the sealing plate 222 and the bottom end of the connecting pipe 213, preventing impurities or mud from leaking in the closed state. At this time, the opening and closing assembly 220 is in the closed state. When the pull rod 2221 is pulled outward, the sealing plate 222 moves away from the connecting pipe 213, and the screening mechanism 200 is in the connected state.

[0043] like Figure 2 and Figure 5 As shown, in addition, both sides of the housing 221 have protruding edges 2213. The two protruding edges 2213 on the two housings 221 are connected by bolts. The protruding edges 2213 increase the connection area between the housings 221, making the bolt fixation more stable and improving the overall structural strength of the opening and closing assembly 220. A sealing ring 2214 is tightly bonded between the adjacent end edges of the two housings 221. The sealing ring 2214 can fill the gap between the two housings 221 and prevent impurities or mud from leaking from the joint of the housings 221. Rubber blocks 2215 are embedded at the ends of the two movable cavities 2211 away from the connecting pipe 213. The pull rod 2221 passes through the rubber blocks 2215. The rubber blocks 2215 can seal the penetration between the pull rod 2221 and the housing 221.

[0044] In this embodiment of the phosphate rock screening and desliming cyclone desliming device, the slurry first flows in from the top of the screening pipe 212. When it passes through the inclined baffle 2122, large particles of impurities are intercepted, while small molecule slurry enters the main pipe 210 through the gap of the baffle 2122, and then flows to the hydrocyclone 100 to complete the desliming. Then, the large particles of impurities intercepted by the baffle 2122 enter the connecting pipe 213 through the bottom opening 2121, and then fall into the collection tank 230 through the opening and closing component 220 which is in a connected state. Next, the operator observes the accumulation of impurities through the viewing window 231 of the collection tank 230. When cleaning is required, the operator pushes the lever 2221 to move the sealing plate 222 to block the bottom of the connecting pipe 213, so that the opening and closing component 220 is in a closed state to prevent mud leakage during the cleaning process. Finally, the collection tank 230 is rotated to remove it from the threaded hole 2212, the impurities are emptied and it is reinstalled. Then the lever 2221 is pulled to restore the opening and closing component 220 to the connected state, and the screening and desliming operation continues.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A phosphate ore screening desliming hydrocyclone desliming device, comprising a hydrocyclone (100), characterized in that: A screening mechanism (200) is installed at the input end of the hydrocyclone (100). The screening mechanism (200) includes a main pipe (210) connected to the input end of the hydrocyclone (100) via a flange, an opening and closing assembly (220) connected below the main pipe (210), and a collection tank (230) threaded to the bottom of the opening and closing assembly (220). The screening mechanism (200) intercepts large particles of impurities in the mud and discharges them downward into the collection tank (230) for collection. The opening and closing assembly (220) is used to facilitate the disassembly of the collection tank (230) for cleaning when it is closed. The top of the main pipe (210) is provided with a top protrusion (211), and the top of the top protrusion (211) is provided with a cavity (2111) that communicates with the main pipe (210). A sieve pipe (212) is sleeved in the cavity (2111). A connecting pipe (213) is connected to the bottom surface of the main pipe (210). The bottom end of the sieve pipe (212) is provided with a bottom opening (2121) in the shape of an inverted V. The bottom opening (2121) is connected to the connecting pipe (213). Several baffles (2122) are inclined and fixed at the edge of the bottom opening (2121) near the opening of the hydrocyclone (100) and arranged at equal intervals. The opening and closing assembly (220) is formed by bolts fixing a pair of shells (221) symmetrically arranged. The shell (221) has a movable cavity (2211) inside. The bottom end of the connecting pipe (213) is fixedly connected to the shell (221) at the top and is in communication. The bottom end of the bottom shell (221) has a threaded hole (2212), and the opening of the collection tank (230) is threaded into the threaded hole (2212).

2. The phosphate ore desliming hydrocyclone according to claim 1, characterized in that: Limiting grooves (2112) are provided on the inner walls of both sides of the sleeve cavity (2111). A fixing plate (2123) is fixed on the top outer surface of the screening tube (212). The left and right edges of the fixing plate (2123) protrude from the outer surface of the screening tube (212) and can be inserted into the two limiting grooves (2112) respectively. A lifting groove (2124) is provided on the fixing plate (2123). The screening tube (212) can be lifted out of the top protrusion (211) through the lifting groove (2124).

3. The phosphate ore desliming hydrocyclone according to claim 2, characterized in that: The top of the top protrusion (211) is bolted to a top cover (2113). After the top cover (2113) is installed, the top of the fixing plate (2123) abuts against the bottom surface of the top cover (2113).

4. The phosphate ore desliming hydrocyclone according to claim 1, characterized in that: The top of the baffle (2122) is far away from the cyclone separator (100), and the bottom of the baffle (2122) is close to the cyclone separator (100), so that the baffle (2122) is inclined from top to bottom and gradually approaches the cyclone separator (100).

5. The phosphate ore desliming hydrocyclone according to claim 1, characterized in that: The left and right sides of the casing (221) are provided with protruding edges (2213), and the two protruding edges (2213) that are close to each other on the two casings (221) are fixedly connected by bolts.

6. The phosphate ore desliming hydrocyclone according to claim 1, characterized in that: A sealing plate (222) is fitted between the two housings (221). The length of the sealing plate (222) is less than the length of the movable cavity (2211). The sealing plate (222) can move along the length direction of the movable cavity (2211). A pull rod (2221) is fixed at the tail end of the sealing plate (222). The pull rod (2221) passes through the tail end of the opening and closing assembly (220). A rubber ring (2222) is embedded on the top surface of the sealing plate (222). When the pull rod (2221) is pushed, causing the pull rod (2221) to move the sealing plate (222) to block the bottom end of the connecting pipe (213), the bottom end of the connecting pipe (213) and the sealing plate (222) are sealed by the rubber ring (2222). At this time, the opening and closing assembly (220) is in a closed state. When the pull rod (2221) is pulled outward, the sealing plate (222) moves away from the connecting pipe (213), and the screening mechanism (200) is in a connected state.

7. The phosphate ore desliming hydrocyclone according to claim 6, characterized in that: A sealing ring (2214) is tightly bonded between the edges of the two adjacent end faces of the two housings (221). A rubber stop (2215) is embedded at the end position of the two movable cavities (2211) away from the connecting pipe (213). The pull rod (2221) passes through the rubber stop (2215).

8. The phosphate ore desliming hydrocyclone according to claim 1, characterized in that: A viewing window (231) is provided on the outer surface of the collection tank (230).

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