Centrifugal machine and water quenching circulating water system

Abstract

The utility model discloses a centrifuge and water quenching circulating water system, the centrifuge comprises a casing, a drum, a scraper assembly, a flushing assembly and a slag output assembly, the casing is provided with a feed pipe, the casing is provided with a liquid discharge port and a solid discharge port, the feed pipe is used for conveying materials to be separated towards the inside of the drum, the drum is rotatably arranged in the casing, and the liquid discharge port and the solid discharge port are communicated with each other. Filtering holes are formed in the inner circumferential wall of the rotary drum, a slag outlet communicated with the solid discharging opening is formed in the bottom wall of the rotary drum, the scraper assembly is used for scraping the inner circumferential wall of the rotary drum, the flushing assembly is used for spraying cleaning liquid towards the inner circumferential wall of the rotary drum, and the slag output assembly comprises a pipeline switching valve, a first pipeline and a second pipeline; the first pipeline and the second pipeline are connected with the solid discharging port through a pipeline switching valve, and the pipeline switching valve can switch the solid discharging port to be communicated with one of the first pipeline and the second pipeline. According to the centrifugal machine provided by the embodiment of the utility model, the classified output of the first slag charge and the second slag charge can be better realized, so that the subsequent treatment efficiency of the first slag charge and the second slag charge can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of smelting, in particular to a centrifuge and a water quenching circulating water system. Background Art

[0002] The working principle of a centrifuge is that a motor drives a drum to rotate. When it reaches the feeding speed state, the material to be separated enters the high-speed rotating drum through a feeding pipe. After the feeding reaches a predetermined volume, the feeding stops, and it rises to high-speed separation. Under the action of centrifugal force, the material is separated. The liquid passes through the drum holes and is thrown into the cavity. The separated solid is discharged from the lower discharge port of the centrifuge, and then the drum is cleaned, and the generated flushing material is also discharged from the lower discharge port. In the prior art, both the flushing material and the dried material are discharged from the lower discharge port, resulting in the mixing of the flushing material and the dried material, which is not convenient for the subsequent classification treatment of the flushing material and the dried material. Summary of the Utility Model

[0003] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, the utility model provides a centrifuge, which has the advantage of classifying and outputting the first slag and the second slag.

[0004] The utility model also provides a water quenching circulating water system with the above centrifuge.

[0005] The centrifuge according to the embodiment of the utility model includes: a housing, on which a feeding pipe is provided and which has a liquid discharge port and a solid discharge port; a drum, the feeding pipe is used for conveying the material to be separated into the drum, the drum is rotatably arranged in the housing, filter holes are formed on the inner peripheral wall of the drum, and a slag discharge port communicating with the solid discharge port is formed on the bottom wall; a scraper assembly, the scraper assembly is used for scraping the inner peripheral wall of the drum; a flushing assembly, the flushing assembly is used for spraying cleaning liquid towards the inner peripheral wall of the drum; a slag output assembly, the slag output assembly includes a pipeline switching valve, a first pipeline and a second pipeline, the first pipeline and the second pipeline are connected to the solid discharge port through the pipeline switching valve, and the pipeline switching valve can switch the connection between the solid discharge port and one of the first pipeline and the second pipeline.

[0006] For the centrifuge according to the embodiment of the utility model, the first pipeline and the second pipeline are connected to the solid discharge port through the pipeline switching valve, and the pipeline switching valve can switch the connection between the solid discharge port and one of the first pipeline and the second pipeline, which can better realize the classified output of the first slag and the second slag, thereby improving the efficiency of the subsequent treatment of the first slag and the second slag.

[0007] According to some embodiments of the present utility model, the solid discharge port is formed at the bottom of the casing. The pipeline switching valve has an inlet, a first outlet and a second outlet. The inlet is connected to the solid discharge port and is disposed opposite to the solid discharge port in the vertical direction. One of the first outlet and the second outlet is disposed opposite to the inlet in the vertical direction. The first outlet and the second outlet are respectively connected to the first pipeline and the second pipeline.

[0008] According to some embodiments of the present utility model, the scraper assembly includes a lifting mechanism and a scraper. The scraper is adapted to contact the inner peripheral wall of the drum. The lifting mechanism is used to drive the scraper to lift and lower. The dimension of the scraper in the vertical direction is smaller than the dimension of the drum in the vertical direction.

[0009] According to some embodiments of the present utility model, the dimension h1 of the scraper in the vertical direction and the dimension h2 of the drum in the vertical direction satisfy: 1 / 6 ≤ h1 / h2 ≤ 1 / 3; and / or, a plurality of scrapers are provided at intervals in the vertical direction.

[0010] According to some embodiments of the present utility model, the flushing assembly includes: an infusion pipe; a flushing pipe. The infusion pipe is connected to the flushing pipe and is used to convey cleaning liquid towards the flushing pipe. At least a part of the flushing pipe is located inside the drum, and flushing outlets are formed on the part of the flushing pipe located inside the drum.

[0011] According to some embodiments of the present utility model, the flushing outlets are a plurality of arranged at intervals in the vertical direction, and the extending directions of at least two of the flushing outlets are different.

[0012] According to some embodiments of the present utility model, the casing includes a housing and a cover body. An installation cavity is formed inside the housing and has an upwardly open opening. The drum is rotatably disposed inside the installation cavity. The cover body is disposed at the opening. The centrifuge further includes an opening and closing mechanism, and the opening and closing mechanism is used to drive the cover body to switch between a position closing the opening and a position opening the opening.

[0013] According to some embodiments of the present utility model, a locking mechanism is provided on one side of the cover body. The locking mechanism is detachably connected to the housing. The other side of the cover body away from the locking mechanism is rotatably connected to the housing.

[0014] According to some embodiments of the present utility model, the opening and closing mechanism is located on the side of the cover body away from the locking mechanism.

[0015] The water quenching circulating water system according to an embodiment of the present invention includes: a granulation tank; a thickener, the granulation tank is communicated with the thickener, and a bottom flow outlet is formed at the bottom of the thickener; the above-mentioned centrifuge, the feed pipe is communicated with the bottom flow outlet, and the liquid discharge port is communicated with the granulation tank.

[0016] In the water quenching circulating water system according to an embodiment of the present invention, the granulation tank is communicated with the thickener, a bottom flow outlet is formed at the bottom of the thickener, the feed pipe is communicated with the bottom flow outlet, and the liquid discharge port is communicated with the granulation tank, which can reduce the solid content in the water entering the granulation tank, thereby reducing the solid content in the water quenching circulating water system and improving the stability of the water quenching circulating water system.

[0017] The additional aspects and advantages of the present invention will be partly given in the following description, partly will become obvious from the following description, or be understood through the practice of the present invention. Description of the Drawings

[0018] The above and / or additional aspects and advantages of the present invention will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 is a schematic internal structure diagram of the centrifuge according to an embodiment of the present invention;

[0020] Figure 2 is Figure 1 an enlarged view of area A in

[0021] Figure 3 is a top view of the centrifuge according to an embodiment of the present invention;

[0022] Figure 4 is a schematic diagram of the centrifuge and the liquid discharge pipe according to an embodiment of the present invention.

[0023] Reference Signs:

[0024] Centrifuge 100;

[0025] Machine shell 1; Feed pipe 11; Feed valve 111; Liquid discharge port 12; Solid discharge port 13; Shell 14; Cover 15; Observation port 151; Explosion-proof valve 152; Installation cavity 16; Locking mechanism 17; Central disc 18; Feeding hopper 19;

[0026] Drum 2; Slag discharge port 21;

[0027] Scraper assembly 3; Lifting mechanism 31; Scraper 32; Switching mechanism 33;

[0028] Infusion pipe 41; Flushing pipe 42; Flushing outlet 421; Infusion valve 43;

[0029] Pipeline switching valve 51; First pipeline 52; Second pipeline 53; Inlet 54; First outlet 55; Second outlet 56;

[0030] Opening and closing mechanism 6; Connecting arm 61;

[0031] Motor 71; Pulley 72; Transmission belt 73; Main shaft 74;

[0032] Liquid discharge pipe 8. Specific implementation mode

[0033] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention.

[0034] The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numerals and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but those of ordinary skill in the art can be aware of the applicability of other processes and / or the use of other materials.

[0035] The centrifuge 100 according to an embodiment of the present invention will be described below with reference to the drawings.

[0036] As Figures 1-4 shown, the centrifuge 100 according to an embodiment of the present invention includes: a housing 1, a drum 2, a scraper assembly 3, a flushing assembly, and a slag output assembly. The housing 1 is provided with a feed pipe 11 and the housing 1 has a liquid discharge port 12 and a solid discharge port 13. The feed pipe 11 is used to convey the material to be separated into the drum 2. Among them, the material to be separated refers to a solid-liquid mixture that needs to be separated by a centrifuge. The drum 2 is rotatably arranged in the housing 1. Filter holes are formed on the inner peripheral wall of the drum 2, and a slag outlet 21 communicating with the solid discharge port 13 is formed on the bottom wall. The scraper assembly 3 is used to scrape the inner peripheral wall of the drum 2, and the flushing assembly is used to spray a cleaning liquid onto the inner peripheral wall of the drum 2.

[0037] That is to say, the material to be separated can enter the drum 2 through the feed pipe 11. The rotation of the drum 2 can apply a centrifugal force to the material to be separated inside the drum 2. The material to be separated moves towards the inner peripheral wall of the drum 2 under the action of the centrifugal force. Among them, since filter holes are formed on the inner peripheral wall of the drum 2, the liquid part of the material to be separated located inside the drum 2 can flow out through the filter holes, while the solid part of the material to be separated is intercepted on the inner peripheral wall of the drum 2, thereby realizing the solid-liquid separation of the material to be separated. After the solid-liquid separation process is completed, the inner peripheral wall of the drum 2 can be scraped by the scraper assembly 3 to make the solid part attached to the peripheral wall of the drum 2 fall off. The inner peripheral wall of the drum 2 can also be flushed by spraying a cleaning liquid through the flushing assembly to make the solid part fall off. Thus, through the scraper assembly 3 and the flushing assembly, the residual solid material on the inner peripheral wall of the drum 2 can be avoided from affecting the subsequent centrifugal separation process. Among them, the liquid part passing through the filter holes outward can be discharged through the liquid discharge port 12. The solid part scraped off by the scraper assembly 3 and the mixture of the cleaning liquid and the solid part formed by the flushing of the flushing assembly can both be discharged through the solid discharge port 13, thereby realizing the separate and independent output of the liquid part and the solid part in the material to be separated. Among them, for the convenience of description, the first slag and the second slag are introduced in the description of this specification. The first slag is the solid material scraped off by the scraper assembly 3, and the second slag is the mixture of the solid material and the flushing liquid generated by flushing the inner peripheral wall of the drum 2 by the flushing assembly. That is, the first slag is solid, and the second slag is a solid-liquid mixture. The slag discharge assembly includes a pipeline switching valve 51, a first pipeline 52, and a second pipeline 53. The first pipeline 52 and the second pipeline 53 are connected to the solid discharge port 13 through the pipeline switching valve 51. The pipeline switching valve 51 can switch the connection between the solid discharge port 13 and one of the first pipeline 52 and the second pipeline 53.

[0038] Among them, through the pipeline switching valve 51, the connection between the solid discharge port 13 and the first pipeline 52 can be switched, so as to form a connected output channel among the solid discharge port 13, the pipeline switching valve 51, and the first pipeline 52; through the pipeline switching valve 51, the connection between the solid discharge port 13 and the second pipeline 52 can be switched, so as to form another connected output channel among the solid discharge port 13, the pipeline switching valve 51, and the second pipeline 52. That is, through the cooperation of the pipeline switching valve 51 with the first pipeline 52 and the second pipeline 53, two independent output channels can be formed. Therefore, one of the first pipeline 52 and the second pipeline 53 can be used as the output pipeline for the first slag, and the other of the first pipeline 52 and the second pipeline 53 can be used as the output pipeline for the second slag. Thus, through the cooperation of the pipeline switching valve 51 with the first pipeline 52 and the third pipeline 53, the classified output of the first slag and the second slag can be better realized, thereby improving the efficiency of the subsequent treatment of the first slag and the second slag.

[0039] Specifically, when the scraper assembly 3 scrapes the inner peripheral wall of the drum 2, the flushing assembly is in a standby state at this time, and the pipeline switching valve 51 is switched to connect the solid discharge port 13 and the first pipeline 52. Therefore, after the separated solid material falls off from the inner peripheral wall to form the first slag, it can sequentially pass through the slag discharge port 21, the solid discharge port 13, the pipeline switching valve 51, and the first pipeline 52 for output; when the flushing assembly sprays the cleaning liquid to flush the solid material remaining on the inner peripheral wall of the drum 2, the pipeline switching valve 51 is switched to connect the solid discharge port 13 and the second pipeline 53. Therefore, the second slag formed by the mixture of the flushed solid material and the cleaning liquid can sequentially pass through the slag discharge port 21, the solid discharge port 13, the pipeline switching valve 51, and the second pipeline 53 for output, thereby realizing the classified output of the first slag and the second slag.

[0040] According to the centrifuge 100 of the embodiment of the present invention, the first pipeline 52 and the second pipeline 53 are connected to the solid discharge port 13 through the pipeline switching valve 51, and the pipeline switching valve 51 can switch the solid discharge port 13 to communicate with one of the first pipeline 52 and the second pipeline 53, which can preferably realize the classified output of the first slag and the second slag, thereby improving the efficiency of subsequent processing of the first slag and the second slag.

[0041] In some embodiments, a feed valve 111 is provided on the feed pipe 11. By opening and closing the feed valve 111, the flow and closing of the feed pipe 11 can be controlled. Therefore, the feed valve 111 can be opened when feeding is required to convey the material to be separated into the drum 2, and the feed valve 111 can be closed when the drum 2 is full of material and other situations to prevent the material to be separated from overflowing, thereby realizing the controllable feeding of the centrifuge 100.

[0042] In some embodiments, the machine shell 1 includes a central disk 18 and a blanking hopper 19. The blanking hopper 19 is connected to the lower end of the central disk 18. In the up-down direction, the diameter of the blanking hopper 19 decreases, and the lower end of the blanking hopper 19 forms a solid discharge port 13. The drum 2 is rotatably arranged above the central disk 18, and a channel communicating the slag discharge port 21 and the blanking hopper 19 is formed in the central disk 18.

[0043] In some embodiments, the drum 2 includes a drum main body and a filter screen covering the inner peripheral wall of the drum main body. Under the action of centrifugal force, the liquid part of the material to be separated can pass through the filter screen, and the solid part of the material to be separated is intercepted by the filter screen in the drum 2, thereby realizing the separation of the liquid part and the solid part of the material to be separated. The scraper assembly 3 is suitable for scraping the filter residue on the filter screen, and the flushing assembly is suitable for spraying the cleaning liquid onto the filter screen to prevent the solid material from adhering to the filter screen.

[0044] In some embodiments, the cleaning liquid can be clean water or a liquid with a cleaning effect such as a mixed liquid composed of a washing liquid and clean water, etc. The type of the cleaning liquid is not specifically limited here.

[0045] In some embodiments, the centrifuge further includes a motor 71, a pulley 72, a transmission belt 73, and a main shaft 74. The pulley 72 is provided on the output shaft of the motor 71, the main shaft 74 is provided at the center of the drum 2, and the pulley 72 is drivingly connected to the main shaft 74 through the transmission belt 73. Therefore, the motor 71 drives the pulley 72 to rotate, the pulley 72 drives the main shaft 74 to rotate through the transmission belt 73, and the main shaft 74 drives the central disk 18 of the drum 2 to rotate to apply a centrifugal force to the material to be separated in the drum 2, thereby achieving the effect of centrifugal separation.

[0046] In some embodiments, the drum 2 is provided with an upper and lower limit alarm device. When the addition amount of the material to be separated reaches the upper limit of the capacity of the centrifuge 100, the upper and lower limit alarm device prompts that the material is full, and at this time, the feeding is stopped. When the material in the centrifuge 100 is less than the lower limit, the upper and lower limit alarm device prompts to replenish the material.

[0047] According to some embodiments of the present invention, as Figure 3 shown, the solid discharge port 13 is formed at the bottom of the housing 1. The pipeline switching valve 51 has an inlet 54, a first outlet 55, and a second outlet 56. The inlet 54 is connected to the solid discharge port 13 and is disposed opposite to the solid discharge port 13 in the vertical direction. The first outlet 55 and the second outlet 56 are respectively connected to the first pipeline 52 and the second pipeline 53, and one of the first outlet 55 and the second outlet 56 is disposed opposite to the inlet 54 in the vertical direction.

[0048] For example, the first outlet 55 is disposed opposite to the inlet 54 of the pipeline switching valve 51 in the vertical direction. Since the solid discharge port 13 is provided at the bottom of the housing 1, the inlet 54 of the pipeline switching valve 51 is connected to the solid discharge port 13 and is disposed opposite to the solid discharge port 13 in the vertical direction. Then, the material coming out of the solid discharge port 13 can rely on its own weight to enter the inlet 54 of the pipeline switching valve 51 through the solid discharge port 13, and then continue to rely on its own weight to enter the first pipeline 52 through the first outlet 55 of the pipeline switching valve 51, which is more convenient and efficient. Of course, it can also be that the second outlet 56 is disposed opposite to the inlet 54 of the pipeline switching valve 51 in the vertical direction, so that the material coming out of the solid discharge port 13 can rely on its own weight to enter the second pipeline 53 through the inlet 54 and the second outlet 56 of the pipeline switching valve 51 in sequence. No specific limitation is made here. Thus, the efficiency of the material output by the centrifuge 100 can be better improved, and the cost is low.

[0049] According to some embodiments of the present utility model, the scraper assembly 3 includes a lifting mechanism 31 and a scraper 32. The scraper 32 is adapted to contact the inner peripheral wall of the drum 2, and the size of the scraper 32 in the vertical direction is smaller than the size of the drum 2 in the vertical direction. Therefore, the shielding area of the scraper 32 can be reduced, thereby reducing the residual amount of materials on the scraper 32 during the centrifugation process. At the same time, it can avoid the wear of the scraper 32 caused by long-term contact with the inner top wall and inner bottom wall of the drum 2, which is beneficial to extending the service life of the scraper 32 and the drum 2. The lifting mechanism 31 can drive the scraper 32 to rise and fall. Therefore, through the lifting mechanism 31, the scraper 32 can be driven to scrape different positions on the inner peripheral wall of the drum 2 in height. That is, through the cooperation of the lifting mechanism 31 and the scraper 32, the scraper 32 with a smaller size in the vertical direction can scrape the entire inner peripheral wall of the drum 2, thereby reducing the residual amount of solid materials on the scraper 32, extending the service life of the scraper 32 and the drum 2, and ensuring the cleaning effect of the scraper assembly 3 on the solid materials on the inner peripheral wall of the drum 2.

[0050] In some embodiments, a plurality of scrapers 32 are arranged at intervals in the vertical direction, which is beneficial to improving the cleaning efficiency of the scraper assembly 3 for the solid materials on the inner peripheral wall of the drum 2. Among them, "a plurality" refers to two or more. For example, the number of scrapers 32 can be 2, 3, 4, 5, 6, or 7.

[0051] In some embodiments, the scraper assembly 3 further includes a switching mechanism 33. The switching mechanism 33 is used to drive the scraper 32 to switch between a position in contact with the inner peripheral wall of the drum 2 and a position spaced apart from the inner peripheral wall of the drum 2. That is to say, the switching mechanism 33 can drive the scraper 32 to contact the inner peripheral wall of the drum 2 to clean the attached solid materials, and can also drive the scraper 32 to be spaced apart from the inner peripheral wall of the drum 2 to prevent the scraper 32 or the drum 2 from being worn due to long-term contact between the scraper 32 and the inner peripheral wall of the drum 2 when the drum 2 rotates at a high speed for solid-liquid separation, which is beneficial to extending the service life of the scraper 32 or the drum 2.

[0052] Specifically, after the solid-liquid separation process is completed, the separated solid materials adhere to the inner peripheral wall of the drum 2. At this time, the switching mechanism 33 switches the scraper 32 to a position in contact with the inner peripheral wall of the drum 2, and the scraper assembly 3 scrapes the inner peripheral wall of the drum 2, so that the solid materials attached to the inner peripheral wall of the drum 2 fall off. After the cleaning is completed, the switching mechanism 33 can switch the scraper 32 to a position spaced apart from the inner peripheral wall of the drum 2, and then the rinsing assembly sprays a cleaning liquid on the inner peripheral wall of the drum 2 to rinse the residual solid materials on the inner peripheral wall of the drum 2.

[0053] According to some embodiments of the present utility model, the dimension h1 of the scraper 32 in the vertical direction and the dimension h2 of the drum 2 in the vertical direction satisfy: 1 / 6 ≤ h1 / h2 ≤ 1 / 3. Among them, when the dimension of the drum 2 in the vertical direction remains unchanged, the smaller the ratio of the dimension of the scraper 32 in the vertical direction to the dimension of the drum 2 in the vertical direction, the smaller the area of the inner peripheral wall of the drum 2 that the scraper 32 can cover, and at the same time, the smaller the area that the scraper 32 blocks the movement of the material towards the inner peripheral wall of the drum 2 during centrifugation. The larger the ratio of the dimension of the scraper 32 in the vertical direction to the dimension of the drum 2 in the vertical direction, the larger the area of the inner peripheral wall of the drum 2 that the scraper 32 can cover, and at the same time, the larger the area that the scraper 32 blocks the movement of the material towards the inner peripheral wall of the drum 2 during centrifugation. Therefore, by controlling the ratio of the dimension of the scraper 32 to the dimension of the drum 2 in the vertical direction within the range of 1 / 6 to 1 / 3, it is possible to prevent the scraper 32 from being too small, resulting in too small an area for covering the inner peripheral wall of the drum 2 and too low working efficiency of the scraper 32. At the same time, it is possible to prevent the scraper 32 from being too large, resulting in too large an area for blocking the movement of the material towards the inner peripheral wall of the drum 2 during centrifugation. Thus, while ensuring the working efficiency of the scraper 32, the amount of slag accumulation on the scraper 32 can be reduced. Among them, the dimension of the scraper 32 in the vertical direction can be 1 / 6, 1 / 5, 2 / 9, 1 / 4, 1 / 3, etc. of the dimension of the drum 2 in the vertical direction, and no specific limitation is made here.

[0054] According to some embodiments of the present utility model, the flushing assembly includes: a liquid delivery pipe 41 and a flushing pipe 42. The liquid delivery pipe 41 is connected to the flushing pipe 42 and is used to deliver cleaning liquid towards the flushing pipe 42. At least a part of the flushing pipe 42 is located inside the drum 2, and a flushing outlet 421 is formed on the part of the flushing pipe 42 located inside the drum 2. Therefore, the cleaning liquid enters the flushing pipe 42 from the liquid delivery pipe 41, and the cleaning liquid entering the flushing pipe 42 is ejected through the flushing outlet 421 to flush the residual filter residue on the drum 2, which can prevent the separated solid material from adhering to and blocking the filter holes on the inner peripheral wall of the drum 2, thereby avoiding the inability of the separated liquid part to smoothly drain through the filter holes, which is beneficial to improving the stability of the centrifuge 100 in separating solids and liquids.

[0055] In some embodiments, there are multiple flushing outlets 421 arranged at intervals in the vertical direction. Therefore, through the multiple flushing outlets 421, cleaning liquid can be sprayed towards multiple positions of the drum 2 in the vertical direction, which can increase the flushing range of the flushing assembly and is conducive to improving the flushing efficiency. Among them, the extending directions of at least two flushing outlets 421 are different. That is to say, at least two of the multiple flushing outlets 421 can spray cleaning liquid towards the inner peripheral wall of the drum 2 in two different directions, thereby increasing the flushing range of the flushing assembly and improving the cleaning efficiency. Among them, the extending directions of two of the flushing outlets 421 can be different. For example, the flushing pipe 42 extends in the vertical direction, the extending direction of the upper flushing outlet 421 can be perpendicular to the flushing pipe 42, and the lower flushing outlet 421 can extend obliquely downward, etc.; the extending directions of more than two flushing outlets 421 can also be different. For example, the upper flushing outlet 421 can extend obliquely upward, the extending direction of the middle flushing outlet 421 can be perpendicular to the flushing pipe 42, and the lower flushing outlet 421 can extend obliquely downward, etc.; it can also be that the extending directions of all the flushing outlets 421 are different, etc., and no specific limitation is made here.

[0056] In some embodiments, multiple flushing outlets 421 are arranged at different positions in the circumferential direction of the flushing pipe 42, so that cleaning liquid can be sprayed towards different positions in the circumferential direction, further increasing the flushing range of the cleaning assembly and improving the flushing efficiency.

[0057] In some embodiments, a liquid infusion valve 43 is provided on the liquid infusion pipe 41. By opening and closing the liquid infusion valve 43, the flow through and closing of the liquid infusion pipe 41 can be controlled, thereby realizing the delivery and stopping of the delivery of the cleaning liquid.

[0058] According to some embodiments of the present invention, the casing 1 includes a housing 14 and a cover 15. An installation cavity 16 is formed inside the housing 14 and has an upwardly open opening. The drum 2 is rotatably arranged in the installation cavity 16. The cover 15 is arranged at the opening. The centrifuge 100 further includes an opening and closing mechanism 6. The opening and closing mechanism 6 is used to drive the cover 15 to switch between a position closing the opening and a position opening the opening. Therefore, by rotating the cover 15 to open and close the installation cavity 16, it is convenient to maintain and replace the internal components of the centrifuge 100. At the same time, by driving the cover 15 to open and close the installation cavity 16 through the opening and closing mechanism 6, time is saved and the manual operation burden is reduced.

[0059] In some embodiments, an observation port 151 and an explosion-proof valve 152 are provided on the cover 15. The observation port 151 is convenient for observing the internal situation of the centrifuge 100 when the cover 15 is closed. The explosion-proof valve 152 is used to relieve pressure when the internal pressure of the casing 1 exceeds the upper pressure limit threshold, so as to improve the safety of using the centrifuge 100.

[0060] According to some embodiments of the present utility model, a locking mechanism 17 is provided on one side of the cover body 15. The locking mechanism 17 is detachably connected to the housing 14, and the other side of the cover body 15 away from the locking mechanism 17 is rotatably connected to the housing 14. That is to say, when it is necessary to open the housing 14, the locking mechanism 17 is separated from the housing 14, and the cover body 15 can rotate relative to the housing 14, which is convenient for maintaining and replacing the internal components of the centrifuge 100. After the cover body 15 closes the housing 14, the locking mechanism 17 can be connected to the housing 14 to keep the cover body 15 in the state of closing the housing 14, thereby forming a fixed connection between the cover body 15 and the housing 14 to prevent the cover body 15 from shaking relative to the housing 14 during the centrifugation process. Therefore, the cover body 15 will not loosen when closed, improving the reliability. Among them, the cover body 15 is rotatably connected to the housing 14, and the cover body 15 can be exempted from repositioning when closed, which is beneficial to reducing the opening and closing difficulty of the cover body 15 on the housing 14.

[0061] In some embodiments, as Figure 1 and Figure 2 shown, the opening and closing mechanism 6 is located on the side of the cover body 15 away from the locking mechanism 17. Therefore, the opening and closing mechanism 6 can be prevented from interfering with the opening and closing trajectory of the cover body 15, improving the stability of the centrifuge 100.

[0062] In some embodiments, the opening and closing mechanism 6 is a driving cylinder. The telescopic rod of the driving cylinder is connected to the side of the connecting arm 61 away from the cover body 15. The middle part of the connecting arm 61 is rotatably connected to the cover body 15, and the side of the connecting arm 61 away from the driving cylinder is connected to the cover body 15. Therefore, when the driving cylinder drives the telescopic rod to extend, the side of the connecting arm 61 away from the cover body 15 rises, driving the connecting arm 61 to rotate so that the end of the connecting arm 61 connected to the cover body 15 descends, thereby driving the cover body 15 to close the housing 14; when the driving cylinder drives the telescopic rod to retract, the side of the connecting arm 61 away from the cover body 15 descends, driving the connecting arm 61 to rotate so that the end of the connecting arm 61 connected to the cover body 15 rises, thereby driving the cover body 15 to open the housing 14.

[0063] The following describes the water quenching circulating water system according to the embodiments of the present utility model with reference to the accompanying drawings.

[0064] According to the water quenching circulating water system of the present utility model, it includes: a granulation tank, a thickener, and a centrifuge 100. The granulation tank is communicated with the thickener. A bottom flow outlet is formed at the bottom of the thickener. The feed pipe 11 is communicated with the bottom flow outlet, and the liquid discharge port 12 is communicated with the granulation tank. Among them, through the thickener, the solids in the materials entering the thickener from the granulation tank can settle at the bottom of the thickener. Therefore, the settled materials can enter the centrifuge 100 through the feed pipe 11. The centrifuge 100 separates the solid and liquid of the entering materials. Since the liquid discharge port 12 is communicated with the granulation tank, only the liquid after centrifugal separation can return to the granulation tank through the liquid discharge port 12, which can reduce the solid content entering the granulation tank, thereby reducing the solid content in the water quenching circulating water system and improving the stability of the water quenching circulating water system.

[0065] According to the water quenching circulating water system of the present utility model, the granulation tank is communicated with the thickener. A bottom flow outlet is formed at the bottom of the thickener. The feed pipe 11 is communicated with the bottom flow outlet, and the liquid discharge port 12 is communicated with the granulation tank, which can reduce the solid content of the water entering the granulation tank, thereby reducing the solid content in the water quenching circulating water system and improving the stability of the water quenching circulating water system.

[0066] In some embodiments, the liquid discharge port 12 is communicated with the granulation tank through a liquid discharge pipe 8, so that the liquid after centrifugal separation can enter the granulation tank through the liquid discharge pipe 8.

[0067] Specifically, during the smelting process of copper, after the high-temperature molten copper matte after smelting enters the granulation tank, the high-temperature molten copper matte is water quenched and exploded into granulated copper matte by spraying pressurized cold water. The granulated copper matte is filtered by water through the ladle of the copper matte scraper and then transported to the conveying device. Part of the copper matte and the water after water quenching overflow from the granulation tank to the thickener. The thickener separates the solid and liquid by gravity sedimentation. The overflow water of the thickener flows to the hot water tank, is pumped to the cooling tower through the water quenching hot water pump for cooling and then returns to the cold water tank, and then the water in the cold water tank is pressurized by the water quenching cold water pump to supply the granulation tank. The underflow of the thickener is dehydrated and separated by the centrifuge 100 to separate out filter residue and water. The filter residue enters the next process and can be reused after treatment, and the water is transported to the granulation tank.

[0068] After centrifugation, impurities and fine matte in the underflow filter residue no longer enter the granulation tank, which can reduce the filter residue content in the water quenching circulating water system, reduce the wear of the rotor of the cold and hot water circulating pump and the inlet and outlet pipes of the pump, can reduce the filter residue remaining in the hopper of the matte salvage machine, reduce the weight of the matte salvage machine, reduce the number of overload occurrences, lower the working current, improve the working efficiency, reduce energy consumption, and improve the water filtering effect of the hopper of the matte salvage machine. Furthermore, it can reduce the water content of the matte. The matte with low water content can improve the cleaning effect of the sweeper in the conveying device, avoid the wear and corrosion caused by the accumulation of matte on the conveying device and the stacker, improve the service life of the conveying device and the stacker, and when the matte with low water content enters the matte mill, it can reduce the natural gas consumption of the hot blast stove and improve the processing efficiency of the matte mill.

[0069] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0070] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0071] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A centrifuge, characterized in that: include: A casing, wherein a feed pipe is provided on the casing and the casing has a liquid discharge port and a solid discharge port; A rotary drum, wherein the feed pipe is used to convey the material to be separated into the rotary drum, the rotary drum is rotatably arranged in the housing, the inner peripheral wall of the rotary drum is formed with filter holes, and the bottom wall is formed with a slag outlet connected with the solid discharge port; A scraper assembly, the scraper assembly is used to scrape the inner peripheral wall of the drum; A flushing assembly, the flushing assembly being used to spray a cleaning liquid toward the inner peripheral wall of the drum; A slag output component, the slag output component includes a pipeline switching valve, a first pipeline and a second pipeline, the first pipeline and the second pipeline are connected to the solid discharge port through the pipeline switching valve, and the pipeline switching valve can switch the solid discharge port to be connected to one of the first pipeline and the second pipeline.

2. The centrifuge according to claim 1, characterized in that The solid discharge port is formed at the bottom of the casing, and the pipeline switching valve has an inlet, a first outlet, and a second outlet. The inlet is connected to the solid discharge port and is arranged opposite to the solid discharge port in the up-down direction. The first outlet and the second outlet are respectively connected to the first pipeline and the second pipeline, and one of the first outlet and the second outlet is arranged opposite to the inlet in the up-down direction.

3. The centrifuge according to claim 1, characterized in that The scraper assembly includes a lifting mechanism and a scraper, wherein the scraper is suitable for contacting the inner circumferential wall of the drum, the lifting mechanism is used to drive the scraper to rise and fall, and the size of the scraper in the up and down direction is smaller than the size of the drum in the up and down direction.

4. The centrifuge according to claim 3, characterized in that The dimension h1 of the scraper in the vertical direction and the dimension h2 of the drum in the vertical direction satisfy: 1 / 6≤h1 / h2≤1 / 3; and / or, a plurality of scrapers are provided and arranged at intervals in the vertical direction.

5. The centrifuge according to claim 1, characterized in that: The flushing assembly comprises: Infusion tube; A flushing tube, wherein the infusion tube is connected to the flushing tube and is used to deliver cleaning liquid toward the flushing tube, at least a portion of the flushing tube is located in the drum, and a flushing outlet is formed on the portion of the flushing tube located in the drum.

6. The centrifuge according to claim 5, characterized in that The flushing outlets are multiple and spaced apart from each other vertically, wherein at least two of the flushing outlets extend in different directions.

7. The centrifuge according to claim 1, characterized in that The casing includes a shell and a cover, a mounting cavity is formed in the shell and has an opening open upward, the drum is rotatably arranged in the mounting cavity, the cover is arranged at the opening, and the centrifuge also includes an opening and closing mechanism, which is used to drive the cover to switch between a position closing the opening and a position opening the opening.

8. The centrifuge according to claim 7, characterized in that A locking mechanism is provided on one side of the cover body, and the locking mechanism is detachably connected to the shell body. The other side of the cover body away from the locking mechanism is rotatably connected to the shell body.

9. The centrifuge according to claim 8, characterized in that The opening and closing mechanism is located at a side of the cover body away from the locking mechanism.

10. A water quenching circulating water system, characterized in that: include: Granulation pool; A thickener, the granulation tank is connected to the thickener, and a bottom flow outlet is formed at the bottom of the thickener; A centrifuge, wherein the centrifuge is the centrifuge according to any one of claims 1 to 9, wherein the feed pipe is connected to the underflow outlet, and the liquid outlet is connected to the granulation tank.

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