Phosphate ore washing and screening recirculating washer

Abstract

This utility model relates to the technical field of phosphate rock processing equipment, specifically to a circulating phosphate rock washing and screening equipment. It includes a screening box and a scraper feeder positioned above the screening box. Multiple perforated screen plates are fixedly installed on the inner wall of the screening box from top to bottom. A discharge hopper extending out of the screening box is fixedly installed at the discharge end of each perforated screen plate. A vibrating motor is fixedly installed at the bottom of the screening box. A sewage pipe is fixedly installed at the bottom of the screening box, and a sewage tank is located at the bottom of the sewage pipe. A hydrocyclone is installed on one side of the screening box, and a sewage pump is installed on the other side to transport sewage from the sewage tank to the hydrocyclone for treatment. A booster pump is installed at the outlet of the hydrocyclone, and a flushing pipe is fixedly installed at the outlet of the booster pump. Multiple high-pressure anti-clogging nozzles are fixedly installed at the bottom of the flushing pipe. This utility model facilitates flushing, water recycling, and multi-stage screening operations, making it convenient to use.

Description

Technical Field

[0001] This utility model relates to the technical field of phosphate rock processing equipment, specifically to a circulating phosphate rock washing and screening equipment. Background Technology

[0002] Phosphate ore washing is a crucial link in the phosphate chemical industry chain. Its purpose is to remove impurities such as clay and silt from the ore through washing, thereby improving the grade of the phosphate ore. Phosphate ore washing typically requires specific washing equipment. There are many types of washing equipment on the market. For example, the utility model patent with authorization announcement number CN222076854U discloses a washing device for muddy phosphate ore, including a base. A fixed cylinder is connected to the base via a support rod. The fixed cylinder is inclined, and a stirring cylinder is installed inside the fixed cylinder. Several filter holes are provided on the outer wall of the stirring cylinder. A rotating shaft is rotatably installed inside the stirring cylinder, connected to a first motor. A scraper is installed on the rotating shaft, which cleans the inner wall of the stirring cylinder. Both the fixed cylinder and the stirring cylinder have feed inlets. The rotating shaft drives the scraper to rotate, which stirs the muddy phosphate ore inside the stirring cylinder and simultaneously scrapes off the mud adhering to the inner wall of the stirring cylinder, preventing excessive mud accumulation that could prevent proper discharge.

[0003] Although the above-mentioned technical solutions have corresponding advantages, existing ore washing equipment still has some shortcomings in use: First, it consumes a lot of water and wastes a lot. Traditional equipment adopts the "single-stage flushing + direct discharge" mode, which consumes 5-8 m³ of water per ton of phosphate rock. Direct discharge of muddy wastewater will pollute the environment and result in a resource recovery rate of less than 85%.

[0004] Secondly, the lack of corresponding screening components prevents screening operations and the effective separation of ores of different particle sizes, leading to decreased efficiency in subsequent crushing or flotation processes and affecting the final preparation results. Therefore, we propose a circulating phosphate ore washing and screening system. Utility Model Content

[0005] The purpose of this invention is to provide a circulating washing and screening equipment for phosphate ore, so as to solve the defects mentioned in the background art.

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

[0007] A circulating phosphate ore washing and screening equipment includes a screening box and a scraper feeder installed above the screening box. The discharge end of the scraper feeder extends to the top of the screening box. Multiple perforated screen plates are fixedly installed on the inner wall of the screening box from top to bottom. A discharge hopper extending out of the screening box is fixedly installed at the discharge end of each perforated screen plate. A vibrating motor is fixedly installed at the bottom of the screening box. A sewage pipe is fixedly installed at the bottom of the screening box, and a sewage tank is provided at the bottom of the sewage pipe. A hydrocyclone is provided on one side of the screening box. A sewage pump is provided on one side of the screening box for transporting sewage from the sewage tank to the hydrocyclone for treatment. A booster pump is provided at the outlet end of the hydrocyclone. A flushing pipe is fixedly installed at the outlet end of the booster pump. Multiple high-pressure anti-clogging nozzles for cleaning the discharge end of the scraper feeder and the inside of the screening box are fixedly installed at the bottom of the flushing pipe.

[0008] Preferably, the scraper feeder is inclined downward at 10 to 15 degrees toward the screening box, and a wastewater collection cover for collecting water dripping from the discharge end of the scraper feeder is fixedly installed on the side of the screening box.

[0009] This feature allows wastewater generated during cleaning operations on the scraper feeder to flow through the wastewater collection hood into the screening box and then be smoothly discharged from the sewage pipe.

[0010] Preferably, the perforated sieve plate has a mesh-like structure, and the aperture of multiple perforated sieve plates decreases sequentially from top to bottom;

[0011] This setting enables multi-stage screening operations.

[0012] Preferably, the bottom of the screening box is fixedly equipped with multiple support legs, the bottom of the support legs is provided with support sleeves, the support legs and the support sleeves are inserted and matched, a spring is fixedly installed between the bottom end of the support legs and the bottom wall of the support sleeve, and a fixed base is fixedly installed at the bottom end of the support sleeve, and the fixed base is fixedly installed on an external base.

[0013] Preferably, a sewage pipe is fixedly installed on the bottom of the sewage tank, and a sealing cap is connected to the flange at the end of the sewage pipe;

[0014] This setting facilitates subsequent cleaning operations inside the sewage tank.

[0015] Preferably, the inlet end of the sewage pump is fixedly installed with a suction pipe inserted into the sewage tank, and the outlet end of the sewage pump is connected to the hydrocyclone through a delivery pipe.

[0016] Preferably, the outlet of the hydrocyclone is connected to the booster pump via a clean water pipe, and the distance between two adjacent high-pressure anti-clogging nozzles is between 10cm and 15cm.

[0017] Preferably, a permeation filter screen is fixedly installed on the inner wall of the sewage tank, and the suction pipe and the sewage pipe are respectively located on both sides of the permeation filter screen;

[0018] This feature can provide a preliminary filtration effect on the water in the sewage tank.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. This utility model, through the setting of a sewage tank, sewage pump, hydrocyclone, booster pump and flushing pipe, the sewage pump transports the ore washing wastewater in the sewage tank to the hydrocyclone for treatment, and the purified water is reused for ore washing through the booster pump, flushing pipe and high pressure anti-clogging nozzle, realizing the recycling of ore washing wastewater, replacing the traditional "single-stage flushing + direct discharge" mode, greatly reducing the water consumption per ton of phosphate rock, and reducing wastewater discharge pollution.

[0021] 2. This utility model uses multiple mesh screens with progressively smaller apertures from top to bottom inside the screening box, in conjunction with a vibrating motor at the bottom of the screening box. The vibrating motor drives the screening box to vibrate, so that the phosphate ore completes multi-stage screening on the mesh screens. The minerals of different particle sizes are discharged from the corresponding discharge hoppers, thus achieving precise grading and screening of the minerals.

[0022] 3. This utility model uses a permeable filter screen on the inner wall of the sewage tank, a hydrocyclone, and a drain pipe. The permeable filter screen performs preliminary filtration of the wastewater in the sewage tank to remove large particulate impurities, and then the hydrocyclone performs deep purification to ensure the cleanliness of the circulating water. The drain pipe facilitates the regular cleaning of sediment in the sewage tank to prevent the accumulation of impurities from affecting water circulation. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is one of the partial structural schematic diagrams of this utility model;

[0025] Figure 3 This is the second partial structural schematic diagram of the present utility model;

[0026] The meanings of the labels in the diagram are as follows:

[0027] 1. Screening box; 10. Mesh screen plate; 101. Discharge hopper; 11. Sewage pipe; 12. Vibrating motor; 13. Support leg; 14. Support sleeve; 141. Spring; 142. Fixed base; 15. Wastewater collection cover;

[0028] 2. Scraper feeder;

[0029] 3. Sewage tank; 30. Sewage pipe; 31. Sealing cover; 32. Sewage pump; 33. Suction pipe; 34. Delivery pipe; 35. Hydrocyclone; 36. Clean water pipe; 37. Booster pump; 38. Flushing pipe; 381. High-pressure anti-clogging nozzle; 39. Permeation filter. Detailed Implementation

[0030] 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.

[0031] 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.

[0032] Please see Figures 1-3This utility model provides a technical solution: a circulating phosphate ore washing and screening equipment, including a screening box 1 and a scraper feeder 2 installed above the screening box 1. The scraper feeder 2 is used for conveying phosphate ore. The discharge end of the scraper feeder 2 extends to the top of the screening box 1. Multiple mesh screen plates 10 are fixedly installed on the inner wall of the screening box 1 from top to bottom to realize multi-stage screening operation. A discharge hopper 101 is fixedly installed at the discharge end of the mesh screen plate 10, which passes through the screening box 1. A vibration motor 12 is fixedly installed at the bottom of the screening box 1. A sewage pipe 11 is fixedly installed at the bottom of the screening box 1. A sewage tank 3 is set at the bottom of the sewage pipe 11. A hydrocyclone 35 is installed on one side of the screening box 1. A sewage pump 32 is installed on one side of the screening box 1 to transport sewage from the sewage tank 3 to the hydrocyclone 35 for treatment. A booster pump 37 is installed at the outlet of the hydrocyclone 35. A flushing pipe 38 is fixedly installed at the outlet of the booster pump 37. Multiple high-pressure anti-clogging nozzles 381 are fixedly installed at the bottom of the flushing pipe 38 to clean the discharge end of the scraper feeder 2 and the screening box 1. The high-pressure anti-clogging nozzles 381 flush the discharge end and the screening box 1, so that the phosphate ore is initially cleaned before entering the screening, while avoiding the ore from clogging the screen and ensuring that the washing and screening are carried out simultaneously and efficiently.

[0033] In this embodiment, the scraper feeder 2 is tilted downwards at 10 to 15 degrees toward the screening box 1. A wastewater collection hood 15 is fixedly installed on the side of the screening box 1 to collect the water dripping from the discharge end of the scraper feeder 2. The tilt angle allows the phosphate ore to be transported smoothly. The wastewater collection hood 15 collects the wastewater dripping from the discharge end of the scraper feeder 2 and guides it into the screening box 1, and then discharges it through the sewage pipe 11, avoiding wastewater overflow and pollution of the environment, and improving the water resource recycling rate.

[0034] Specifically, the mesh screen plate 10 has a mesh structure, and the aperture of multiple mesh screen plates 10 decreases sequentially from top to bottom to achieve multi-stage screening operation.

[0035] like Figure 1 and Figure 2 As shown, multiple support legs 13 are fixedly installed at the bottom of the screening box 1. Support sleeves 14 are provided at the bottom of the support legs 13. The support legs 13 and the support sleeves 14 are interlocked. A spring 141 is fixedly installed between the bottom end of the support legs 13 and the bottom wall of the support sleeve 14. A fixed base 142 is fixedly installed at the bottom end of the support sleeve 14. The fixed base 142 is fixedly installed on an external base. The vibration motor 12 drives the screening box 1 to vibrate, so that the phosphate rock can be screened in multiple stages on the mesh screen plates 10 with different apertures. Different particle sizes of mineral materials are discharged from the corresponding discharge hoppers 101, realizing accurate grading of mineral materials and providing uniform raw materials for subsequent processes.

[0036] Furthermore, a sewage pipe 30 is fixedly installed on the bottom of the sewage tank 3. The end flange of the sewage pipe 30 is connected to a sealing cap 31. The ore washing wastewater flows into the sewage tank 3 through the sewage pipe 11 for collection. Afterwards, the sealing cap 31 can be opened to clean the sediment in the sewage tank 3 through the sewage pipe 30, so as to avoid the accumulation of impurities and blockage of the pipe, and ensure the smooth flow of wastewater collection and subsequent treatment.

[0037] In addition, the inlet end of the sewage pump 32 is fixedly installed with a suction pipe 33 inserted into the sewage tank 3, and the outlet end of the sewage pump 32 is connected to the hydrocyclone 35 through a delivery pipe 34. The sewage pump 32 draws wastewater from the sewage tank 3 through the suction pipe 33 and sends it to the hydrocyclone 35 for treatment through the delivery pipe 34, so that the wastewater is purified, laying the foundation for subsequent recycling and reducing the waste of resources and pollution caused by direct discharge of wastewater.

[0038] It is worth noting that the outlet of the hydrocyclone 35 is connected to the booster pump 37 via a clean water pipe 36. The distance between two adjacent high-pressure anti-clogging nozzles 381 is between 10cm and 15cm. The purified water is transported to the flushing pipe 38 via the clean water pipe 36 and the booster pump 37. The high-pressure anti-clogging nozzles 381 spray evenly to wash the ore. The reasonable spacing ensures that the flushing coverage is comprehensive, which not only improves the washing effect but also realizes the recycling of water resources.

[0039] like Figure 3 As shown, a permeation filter 39 is fixedly installed on the inner wall of the sewage tank 3. The suction pipe 33 and the sewage pipe 11 are located on both sides of the permeation filter 39. The permeation filter 39 performs preliminary filtration of the wastewater in the sewage tank 3, removing large particulate impurities before being drawn out by the suction pipe 33. This prevents impurities from entering the sewage pump 32 or the hydrocyclone 35 and causing blockage, thus ensuring the stable operation of subsequent treatment equipment.

[0040] Finally, it should be noted that the scraper feeder 2, vibrating motor 12, hydrocyclone 35, booster pump 37, sewage pump 32, corresponding control system, and external power supply of this utility model are all general standard parts or parts known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods. In the idle space of this device, all the above-mentioned electrical components, which refer to power elements, electrical components, and adapted controllers and power supplies, are connected by wires. The specific connection method should refer to the working principle of this utility model. The electrical connections between each electrical component are completed in the order of operation. The detailed connection methods are all technologies known in the art.

[0041] In use, the phosphate ore washing and screening circulating washing equipment of this utility model feeds phosphate ore into scraper feeder 2, and high-pressure anti-clogging nozzles 381 wash the discharge end and screening box 1. After preliminary cleaning, the phosphate ore falls into mesh screen plate 10. Vibrating motor 12 drives screening box 1 to vibrate. Phosphate ore of different particle sizes is classified by mesh screen plate 10 with decreasing aperture from top to bottom and discharged from the corresponding discharge hopper 101.

[0042] The wastewater from the ore washing process flows into the wastewater pool 3 through the sewage pipe 11 at the bottom of the screening box 1. The permeation filter 39 initially filters out large particles of impurities. The sewage pump 32 draws the wastewater through the suction pipe 33 and sends it to the hydrocyclone 35 for purification through the conveying pipe 34. The purified water is then reused by passing through the clean water pipe 36, the booster pump 37, and the flushing pipe 38, and then through the high-pressure anti-clogging nozzle 381. The wastewater collection cover 15 collects the wastewater dripping from the scraper feeder 2 and guides it into the screening box 1 for recycling.

[0043] After shutdown, turn off all equipment, open the sealing cover 31 of the drain pipe 30, and clean the sediment and impurities in the pool; check whether the mesh screen plate 10 and the high-pressure anti-clogging nozzle 381 are blocked, and reset them after maintenance for the next use.

[0044] 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 circulating phosphate ore washing and screening equipment, comprising a screening box (1) and a scraper feeder (2) disposed above the screening box (1), characterized in that: The discharge end of the scraper feeder (2) extends to the top of the screening box (1). Multiple perforated screen plates (10) are fixedly installed on the inner wall of the screening box (1) from top to bottom. A discharge hopper (101) is fixedly installed at the discharge end of the perforated screen plate (10) and extends out of the screening box (1). A vibrating motor (12) is fixedly installed at the bottom of the screening box (1). A sewage pipe (11) is fixedly installed at the bottom of the screening box (1). A sewage tank (3) is provided at the bottom of the sewage pipe (11). A hydrocyclone (35) is provided on one side of the screening box (1). A sewage pump (32) is provided on one side of the screening box (1) for transporting sewage from the sewage tank (3) to the hydrocyclone (35) for treatment. A booster pump (37) is provided at the outlet of the hydrocyclone (35). A flushing pipe (38) is fixedly installed at the outlet of the booster pump (37). Multiple high-pressure anti-clogging nozzles (381) are fixedly installed at the bottom of the flushing pipe (38) for cleaning the discharge end of the scraper feeder (2) and the screening box (1).

2. The phosphate ore washing and screening recirculating washing plant of claim 1, wherein: The scraper feeder (2) is set at a downward angle of 10 to 15 degrees toward the screening box (1). A wastewater collection cover (15) is fixedly installed on the side of the screening box (1) to collect the water dripping from the discharge end of the scraper feeder (2).

3. The phosphate ore washing and screening circulating washing equipment according to claim 1, characterized in that: The mesh screen plate (10) has a mesh structure, and the aperture of the multiple mesh screen plates (10) decreases sequentially from top to bottom.

4. The phosphate mine washing and screening recirculating washing plant of claim 1, wherein: The bottom of the screening box (1) is fixedly equipped with multiple support legs (13), and the bottom of the support legs (13) is provided with a support sleeve (14). The support legs (13) and the support sleeve (14) are inserted and matched. A spring (141) is fixedly installed between the bottom end of the support legs (13) and the bottom wall of the support sleeve (14). A fixed base (142) is fixedly installed at the bottom end of the support sleeve (14). The fixed base (142) is fixedly installed on the external base.

5. The phosphate ore washing and screening circulating washing equipment according to claim 1, characterized in that: A sewage pipe (30) is fixedly installed on the bottom of the sewage tank (3), and a sealing cap (31) is connected to the end flange of the sewage pipe (30).

6. The phosphate mine washing and screening recirculating washing plant of claim 1, wherein: The inlet end of the sewage pump (32) is fixedly installed with a suction pipe (33) inserted into the sewage tank (3), and the outlet end of the sewage pump (32) is connected to the hydrocyclone (35) through a delivery pipe (34).

7. The phosphate mine washing and screening recirculating washing plant of claim 1, wherein: The outlet of the hydrocyclone (35) is connected to the booster pump (37) through a clean water pipe (36), and the distance between two adjacent high-pressure anti-clogging nozzles (381) is between 10cm and 15cm.

8. The phosphate ore washing and screening circulating washing equipment according to claim 6, characterized in that: A permeation filter (39) is fixedly installed on the inner wall of the sewage tank (3), and the suction pipe (33) and the sewage pipe (11) are located on both sides of the permeation filter (39).

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