Hard alloy grinding material collecting device and method

Abstract

The invention discloses a hard alloy grinding material collecting device and method, and relates to the technical field of hard alloy machining, the hard alloy grinding material collecting device comprises a sewage pool, an oil separation pool connected with the sewage pool, a material settling water channel arranged between the sewage pool and the oil separation pool, one end of a filtering assembly connected with the material settling water channel, and the other end of the filtering assembly connected with external machining equipment; the backwashing assembly is arranged between the filtering assembly and the material settling water channel, and the recycling assembly is connected with the sewage pool; through efficient precipitation of the precipitation water channel, the size of a grinding material in grinding fluid passing through the precision filter can be reduced, the number of the grinding material is reduced, and therefore the frequency of stopping production and replacing a filter element of the precision filter in the grinding fluid recycling process is reduced, and automatic and efficient cleaning of the precipitation water channel and effective collection of the grinding material can be achieved; therefore, the production cost and the manpower consumption are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of cemented carbide processing, and in particular to a cemented carbide grinding material collecting device and method. Background Art

[0002] In the cemented carbide industry, most alloy products (such as various cemented carbide bars, etc.) need to be processed by cutting, flat grinding, chamfering grinding, centerless grinding, etc. before they can be delivered to customers as finished products. In various grinding processes, the cemented carbide metal powder ground off by the grinding wheel is discharged together with the grinding fluid. In order to reuse the grinding fluid and reduce the cost of using the grinding fluid, the grinding fluid mixed with the cemented carbide metal powder is generally concentrated in a sedimentation tank for sedimentation before being put into use again.

[0003] However, in this process, the grinding material does not settle well in the sedimentation tank, and a large amount of metal chips will still enter the processing process with the grinding fluid, which is easy to affect the processing accuracy and thus the product quality. If a precision filter is used directly, the precision filter will be blocked quickly, and it is necessary to frequently stop production to replace the filter element, which consumes a lot of costs and delays normal production. In addition, the sedimentation tank is difficult to clean, and the production line needs to be stopped for a long time, and manpower needs to go down to the sedimentation tank to dig, which is time-consuming and laborious. Summary of the invention

[0004] The purpose of the present invention is to provide a cemented carbide grinding material collection device and method. Through efficient sedimentation in a sedimentation waterway, the size of the grinding material in the grinding fluid passing through the precision filter and the amount of the grinding material can be reduced, thereby reducing the frequency of stopping production and replacing the filter element of the precision filter during the recycling of the grinding fluid, and can realize automatic and efficient cleaning of the sedimentation waterway and effective collection of the grinding material, thereby reducing production costs and manpower consumption.

[0005] The above-mentioned optimized structure of the present invention is realized by the following technical scheme: a cemented carbide grinding material collecting device, comprising a sewage tank; An oil separation tank, the oil separation tank being connected to the sewage tank; At least one sedimentation waterway, the sedimentation waterway being arranged between the sewage tank and the oil separation tank; A filter assembly, one end of which is connected to the sedimentation waterway, and the other end of which is connected to an external processing device; A backwashing assembly, the backwashing assembly being arranged between the filtering assembly and the sedimentation waterway; A recovery component is connected to the sewage pool.

[0006] In some embodiments, the filtration assembly includes a clean water tank, the clean water tank is connected to the oil separation tank, and the backwash assembly is connected between the clean water tank and the sedimentation waterway; An oil skimmer connected to the oil separation tank; At least one precision filter, one end of which is connected to the clean water tank, and the other end of which is connected to an external processing device; A water supply pump is provided between the clean water tank and the precision filter.

[0007] In some embodiments, the backwash assembly includes a backwash pump, and the liquid inlet of the backwash pump is connected to the filter assembly; A recoil pipe connected to a liquid outlet of the recoil pump; A plurality of recoil nozzles are connected to the recoil pipe and extend into the sedimentation waterway.

[0008] In some embodiments, the recovery component includes a recovery pump, and the liquid inlet of the recovery pump is connected to the sewage pool; A recovery component is connected to the liquid outlet of the recovery pump, and the liquid outlet of the recovery component is connected to the sewage pool.

[0009] In some embodiments, the sinking waterway includes a plurality of sinking units, and the plurality of sinking units are connected end to end to form a Tesla valve structure; The sinking unit includes a direct current part; an arc portion, the arc portion being connected to the DC portion; An obstacle block is arranged on the arc-shaped portion, and the obstacle block can realize the diversion of the liquid in the arc-shaped portion. The side of the obstacle block away from the straight flow portion is provided with the recoil nozzle.

[0010] In some embodiments, the connection point between the sedimentation waterway and the oil separation tank is higher than the connection point between the sedimentation waterway and the sewage tank.

[0011] In some embodiments, the obstacle block includes a sharp corner, the sharp corner faces the direct current portion, and a center line of the sharp corner coincides with a center line of the direct current portion of the same sink unit; An arc block is fixedly connected to the sharp corner.

[0012] In some embodiments, the sinking unit further includes a sinking motor, which is disposed outside the sinking waterway, and an output shaft rotation seal of the sinking motor is disposed in the arc-shaped portion and fixedly connected to the obstacle block.

[0013] In some embodiments, the rotation directions of the two obstacle blocks in two adjacent sinker units are opposite.

[0014] A method for collecting cemented carbide grinding materials comprises the following steps: S1, the grinding fluid in the sewage pool is transported to the sedimentation waterway. When the grinding fluid flows to the obstacle block, the obstacle block will separate the grinding fluid into two water flows in opposite directions. A certain amount of reflux will be formed between the two water flows. The reflux will cause a blocking effect on the flow of the grinding fluid. Multiple sedimentation units gradually establish multiple groups of reflux pressure areas to form a fluid dynamic pressure effect, which hinders the overall forward flow of the grinding fluid, so that the grinding material can be fully precipitated from the grinding fluid. Finally, at the end of the sedimentation waterway, the grinding fluid that has been precipitated through the sedimentation waterway enters the filter assembly, filters the grinding fluid, and supplies the clean, impurity-free grinding fluid to external processing equipment. S2, when the equipment in the workshop stops production and rests in the early morning every day, the grinding fluid in the sewage pool stops being transported to the sedimentation waterway, the filtering component stops working, and the backwashing component starts to spray clean solution into multiple arc-shaped parts of the sedimentation waterway, and the grinding material precipitated in the sedimentation waterway is reversely flushed into the sewage pool through the backwashing effect of the solution; S3, during the backwashing process, the obstacle block starts to rotate under the drive of the sinking motor, driving the water flow to rotate and scraping off the abrasives attached to the periphery of the obstacle block, thereby accelerating the discharge of the abrasives into the sewage pool under the entrainment of the backwashing water flow; at the same time, the rotating obstacle block can strengthen the turbulent state of the water flow in the arc-shaped portion, thereby increasing the impact force of the water flow on the abrasives, and further improving the cleaning effect of the abrasives, thereby realizing efficient and fully automatic cleaning of the sinking waterway; S4, the recovery component is started to filter the grinding fluid in the sewage pool, and the grinding material is pressed into a mud cake with very low water content and discharged from the bottom of the recovery component. The filtered clean liquid is then discharged into the sewage pool, thereby completing the convenient and fully automatic collection of the grinding material and the recycling of the grinding fluid.

[0015] One or more of the above technical solutions in the embodiments of the present invention have at least the following technical effects or advantages: The present invention forms a Tesla valve structure in the sedimentation waterway through multiple sedimentation units, thereby realizing efficient sedimentation of grinding materials in the grinding fluid in the sedimentation waterway, and obtains clean grinding fluid without impurities through a filtering component, and re-supplies the grinding fluid to external processing equipment, thereby realizing the reuse of the grinding fluid and reducing production costs. At the same time, the size and number of particulate matter in the grinding fluid during filtration can be reduced, the single working time of the precision filter can be extended, the frequency of filter element replacement can be reduced, the number of shutdowns for replacement can be reduced, the continuity of production can be improved, and manpower consumption can be reduced. The grinding materials precipitated in the sedimentation waterway can be flushed into the sewage pool through a backwashing component and multiple rotatable obstacle blocks in the sedimentation waterway, thereby realizing automatic and efficient cleaning of the sedimentation waterway and effectively preventing blockage and sedimentation problems in the sedimentation waterway. The grinding materials in the sewage pool can be collected through a recovery component. By separating the recovery of grinding materials and the reuse of grinding fluid, the shutdown and repair time of the two processing lines can be effectively utilized, and mutual interference when the two processing lines are carried out simultaneously can be avoided, thereby ensuring the continuity and stability of production. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a front view of the present invention; Figure 2 A top view of the present invention; Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle.

[0018] In the figure: 1. sewage tank; 2. oil separation tank; 3. sedimentation waterway; 31. direct current part; 32. arc part; 33. obstacle block; among which 331. sharp corner; 332. arc block; 34. sedimentation motor; 4. filter assembly; 41. water purification tank; 42. oil collector; 43. precision filter; 44. water supply pump; 5. backwash assembly; 51. recoil pump; 52. recoil pipe; 53. recoil nozzle; 6. recovery assembly; 61. recovery pump; 62. recovery parts; 7. agitator. DETAILED DESCRIPTION

[0019] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0020] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0022] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] refer to Figure 1-3A cemented carbide grinding material collection device comprises a sewage tank 1, an oil separation tank 2, at least one sedimentation waterway 3, a filtering component 4, a backwashing component 5, and a recovery component 6. The sewage tank 1 is used to preliminarily collect grinding fluid containing cemented carbide grinding material. The oil separation tank 2 is connected to the sewage tank 1. The grinding fluid to be separated from the oil pollution is collected in the oil separation tank 2. The sedimentation waterway 3 is arranged between the sewage tank 1 and the oil separation tank 2. The special structural design can accelerate the sedimentation of the grinding material in the grinding fluid, thereby improving the sedimentation effect of the grinding material, reducing the grinding material in the grinding fluid, and improving the cleanliness of the grinding fluid flowing into the oil separation tank 2, which is convenient for subsequent filtering treatment and avoids filter clogging. A water pump (not shown in the figure) is provided between the sedimentation waterway 3 and the sewage pool 1 to allow the solution in the sewage pool 1 to enter the sedimentation waterway 3. The number of sedimentation waterways 3 can be set according to actual production needs. One end of the filter component 4 is connected to the sedimentation waterway 3, and the other end is connected to the external processing equipment. The filter component 4 can further filter the grinding fluid in the oil separation pool 2 so that the filtered grinding fluid meets the use requirements of the external processing equipment and avoids the grinding fluid affecting the processing accuracy, thereby ensuring product quality. The backwash component 5 is provided between the filter component 4 and the sedimentation waterway 3. The sedimentation waterway 3 can be backwashed regularly to prevent the grinding material settled in the sedimentation waterway 3 from clogging the sedimentation waterway 3. At the same time, the grinding material in the sedimentation waterway 3 can be flushed out to facilitate the recovery of the grinding material. The recovery component 6 is connected to the sewage pool 1 to recover the grinding fluid in the sewage pool 1 for recycling.

[0024] In some embodiments, the filtering component 4 includes a clean water tank 41, an oil collector 42, at least one precision filter 43, and a water supply pump 44. The clean water tank 41 is connected to the oil separation tank 2. The clean water tank 41 receives the grinding fluid treated by the oil separation tank, and a backwashing component 5 is connected between the clean water tank 41 and the sedimentation waterway 3. The liquid flowing into the clean water tank 41 can serve as the backwashing liquid to reduce the subsequent operation steps and avoid waste of resources. The oil collector 42 is connected to the oil separation tank 2. The oil collector 42 can collect the oil pollution in the solution in the oil separation tank 2 to achieve the separation of the cutting fluid and the oil pollution. One end of the precision filter 43 is connected to the clean water tank 41, and the other end is connected to the external processing equipment. The water supply pump 44 is arranged between the clean water tank 41 and the precision filter 43, and is used to provide power for the solution to flow from the clean water tank 41 to the precision filter 43. The precision filter 43 can further filter the grinding fluid in the clean water tank 41 to remove fine grinding materials and ensure the recycling quality of the grinding fluid.

[0025] There can be two water supply pumps 44 and two precision filters 43 as backup, so that they can be switched when the precision filter 43 is blocked or fails, so as to ensure smooth production.

[0026] In some embodiments, a float-type water replenishment valve 8 is provided in the clean water tank 41, and the float-type water replenishment valve 8 is connected to an external water supply device. When the liquid level in the clean water tank 41 is too low during backwashing, the float-type water replenishment valve 8 can be opened to introduce external water to replenish the liquid in the clean water tank 41, so as to ensure the smooth progress of backwashing.

[0027] In some embodiments, the backwash assembly 5 includes a backwash pump 51, a backwash pipe 52, and a plurality of backwash nozzles 53. The liquid inlet of the backwash pump 51 is connected to the clean water tank 41, the backwash pipe 52 is connected to the liquid outlet of the backwash pump 51, and the plurality of backwash nozzles 53 are connected to the backwash pipe 52 and extend into the sedimentation waterway 3. The backwash pump 51 provides power to suck the solution in the clean water tank 41 into the backwash pipe 52, and spray it into the sedimentation waterway 3 through the plurality of backwash nozzles 53, thereby realizing the backwashing of the sedimentation waterway 3, flushing out the abrasive material in the sedimentation waterway 3, and facilitating the recovery of the abrasive material.

[0028] In some embodiments, the recovery component 6 includes a recovery pump 61 and a recovery part 62. The liquid inlet of the recovery pump 61 is connected to the sewage pool 1, the recovery part 62 is connected to the liquid outlet of the recovery pump 61, and the liquid outlet of the recovery part 62 is connected to the sewage pool 1. The recovery part 62 can be a filter press. The solution grinding material can be separated by the filter press and pressed into a cake shape, which is discharged from the filter press, thereby realizing the separation and recovery of the grinding material. Since the filter press needs to discharge slag after working for a period of time, the filtration of the solution is intermittent. At the same time, the solution passing through the filter press still contains a lot of grinding material. If it is directly connected to the precision filter 43, the precision filter 43 will still be blocked, and the grinding material cannot be recovered and the grinding fluid cannot be recycled at the same time. Therefore, it is necessary to introduce the sedimentation waterway 3 of the present application to achieve the recovery of the grinding material while the grinding fluid can still be recycled.

[0029] In some embodiments, the sedimentation channel 3 includes a plurality of sedimentation units, which are connected end to end to form a Tesla valve structure, which has the advantages of small space occupation and high sedimentation efficiency, and can establish multiple groups of reflux pressure areas to form a fluid dynamic pressure effect, slow down the liquid flow rate, and achieve solid-liquid separation and sedimentation. Each sedimentation unit includes a direct flow portion 31, an arc portion 32 and an obstacle block 33, and the arc portion 32 is connected to the direct flow portion 31; the obstacle block 33 is arranged on the arc portion 32, and the obstacle block 33 can be a wing-shaped structure, and the obstacle block 33 can realize the diversion of the liquid in the arc portion 32, and divide the water flow into two water flows in opposite directions, increase the resistance, slow down the flow rate, and thus accelerate the sedimentation of the grinding material in the sedimentation channel 3. A recoil nozzle 53 is arranged on the side of the obstacle block 33 away from the direct flow portion 31, and the cleaning liquid is transported to the sedimentation unit through the recoil nozzle 53. The obstacle block 33 will accelerate the flow rate of the cleaning liquid in the sedimentation channel 3, thereby accelerating the discharge of the grinding material.

[0030] In some embodiments, the connection point between the sedimentation waterway 3 and the oil separation tank 2 is higher than the connection point between the sedimentation waterway 3 and the sewage tank 1, so that the sedimentation waterway 3 forms an angle with the horizontal plane. The angle can be an inclination of 1 degree. During forward flow, the resistance of the water flow can be increased to accelerate the sedimentation of the grinding material; during backwashing, the flow rate of the backwash water can be accelerated, which is conducive to the discharge of the grinding material into the sewage tank 1.

[0031] In some embodiments, the obstacle block 33 includes a sharp corner 331, which faces the direct current portion 31, and the center line of the sharp corner 331 coincides with the center line of the direct current portion 31 of the same sedimentation unit, so that when the obstacle block 33 is stationary at a set angle, the sharp corner 331 faces the direction of the water flow and plays a diversion role, and the arc block 332 is fixedly connected to the sharp corner 331.

[0032] In some embodiments, the sinking unit also includes a sinking motor 34, which is arranged outside the sinking waterway 3, and the output shaft rotation seal of the sinking motor 34 is arranged in the arc portion 32 and is fixedly connected to the obstacle block 33. The sinking motor 34 can drive the obstacle block 33 to rotate in the arc portion 32, so that during backwashing, the obstacle block 33 can play the role of a stirring paddle and a scraper, and starts to rotate under the drive of the sinking motor 34, driving the water flow to rotate, scraping off the abrasive material attached to the periphery of the obstacle block 33, thereby accelerating the process of discharging the abrasive material into the sewage pool 1 under the carry-over of the backwashing water flow; at the same time, the rotating obstacle block 33 can strengthen the turbulent state of the water flow in the arc portion 32, thereby increasing the impact force of the water flow on the abrasive material, and thereby improving the cleaning effect of the abrasive material.

[0033] In some embodiments, the two obstacle blocks 33 in two adjacent sedimentation units rotate in opposite directions, which can ensure that the water flow directions in the two sedimentation units are consistent, strengthen the impact force on the grinding material close to the sewage pool 1, avoid inconsistent water flow directions, cause the water flow in the two sedimentation units to collide, and weaken the backwashing effect.

[0034] In some embodiments, an agitator 7 is also included. The agitator 7 is disposed in the sewage pool 1 and is connected to the sedimentation waterway 3 and the recovery component 6. The agitator 7 can stir the grinding fluid in the sewage pool 1 and make the grinding material in the sewage pool 1 flow with the solution to prevent the grinding material from being too densely deposited and causing blockage.

[0035] A method for collecting cemented carbide grinding materials comprises the following steps: S1, the agitator 7 works, constantly agitating the grinding fluid in the sewage pool 1, causing the grinding material in the sewage pool 1 to flow with the solution to form a suspension of the grinding material, and the grinding fluid in the sewage pool 1 is transported to the sedimentation waterway 3 through a water pump, wherein a plurality of obstacle blocks 33 are arranged in the sedimentation waterway 3, and the obstacle blocks 33 are stationary at a set angle, and the sharp corner 331 is facing the direction of the water flow, and when the grinding fluid flows to the sharp corner 331, the sharp corner 331 will separate the grinding fluid into two water flows in opposite directions, and a certain amount of reflux will be formed between the two water flows, and the reflux will cause a blocking effect on the flow of the grinding fluid, and a plurality of sedimentation units will establish a plurality of groups of reflux pressure areas step by step, forming a fluid dynamic pressure effect, thereby hindering the overall forward flow of the grinding fluid, so that the grinding material can be fully settled from the grinding fluid. The oil-free grinding fluid enters the clean water tank 41 through the connecting pipe between the oil separation tank 2 and the clean water tank 41 (a float refilling valve is provided in the clean water tank to complete the refilling when the water level in the system is insufficient), and is then sent to the precision filter 43 by the water supply pump 44. The precision filter 43 can be equipped with a plurality of PE cotton filter tubes that can filter particles larger than 5μm, so that particles larger than 5μm can be completely filtered. Afterwards, the clean and impurity-free grinding fluid is re-supplied to the processing equipment in the workshop to realize the reuse and normal production of the grinding fluid, save resources, and reduce the cost of using the grinding fluid.

[0036] S2, when the equipment in the workshop stops production and rests in the early morning every day, the water pump and the water supply pump 44 stop working, and the recoil pump 51 starts to transport the solution in the clean water tank 41 to the recoil pipe 52, and spray it into the multiple arc-shaped parts 32 of the sedimentation waterway 3 through the recoil nozzle 53. The grinding material precipitated in the sedimentation waterway 3 is reversely flushed into the sewage tank 1 through the backwashing effect of the solution.

[0037] S3, during the backwashing process, the obstacle block 33 starts to rotate under the drive of the sedimentation motor 34, driving the water flow to rotate and scraping off the abrasives attached to the periphery of the obstacle block 33, thereby accelerating the discharge of the abrasives into the sewage pool 1 under the carry-over of the backwashing water flow; at the same time, the rotating obstacle block 33 can strengthen the turbulent state of the water flow in the arc-shaped portion 32, thereby increasing the impact force of the water flow on the abrasives, and further increasing the cleaning effect of the abrasives, thereby realizing efficient and fully automatic cleaning of the sedimentation waterway 3.

[0038] S4, the recovery pump 61 is started, and the suspension in the sewage pool 1 is pumped into the recovery part 62 for filtration. The grinding material is pressed into a mud cake with very low water content and discharged from the bottom of the recovery part 62. The filtered clean liquid is then discharged back into the sewage pool 1, thereby completing the convenient and fully automatic collection of the grinding material and the recycling of the grinding fluid.

[0039] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A cemented carbide grinding material collecting device, characterized in that: including cesspool (1); An oil separation tank (2), the oil separation tank (2) being connected to the sewage tank (1); at least one sedimentation waterway (3), the sedimentation waterway (3) being arranged between the sewage pool (1) and the oil separation pool (2); A filter assembly (4), one end of the filter assembly (4) is connected to the sedimentation waterway (3), and the other end is connected to an external processing device; A backwashing assembly (5), wherein the backwashing assembly (5) is arranged between the filtering assembly (4) and the sedimentation waterway (3); A recovery component (6), wherein the recovery component (6) is connected to the sewage pool (1).

2. A cemented carbide grinding material collecting device according to claim 1, characterized in that: The filtering component (4) comprises a clean water pool (41), the clean water pool (41) is connected to the oil separation pool (2), and the backwashing component (5) is connected between the clean water pool (41) and the sedimentation waterway (3); An oil skimmer (42), the oil skimmer (42) being connected to the oil separation tank (2); at least one precision filter (43), one end of the precision filter (43) being connected to the clean water tank (41), and the other end of the precision filter (43) being connected to an external processing device; A water supply pump (44), wherein the water supply pump (44) is disposed between the clean water tank (41) and the precision filter (43).

3. The cemented carbide grinding material collecting device according to claim 1, characterized in that: The backwashing assembly (5) comprises a backwashing pump (51), and a liquid inlet of the backwashing pump (51) is connected to the filter assembly (4); A recoil pipe (52), the recoil pipe (52) being connected to a liquid outlet of the recoil pump (51); A plurality of recoil nozzles (53), wherein the plurality of recoil nozzles (53) are connected to the recoil pipe (52) and extend into the sedimentation waterway (3).

4. The cemented carbide grinding material collecting device according to claim 1, characterized in that: The recovery component (6) comprises a recovery pump (61), and a liquid inlet of the recovery pump (61) is connected to the sewage pool (1); A recovery component (62), the recovery component (62) being connected to the liquid outlet of the recovery pump (61), and the liquid outlet of the recovery component (62) being connected to the sewage pool (1).

5. The cemented carbide grinding material collecting device according to claim 3, characterized in that: The sinking waterway (3) comprises a plurality of sinking units, and the plurality of sinking units are connected end to end to form a Tesla valve structure; The sinking unit comprises a direct current portion (31); an arc-shaped portion (32), the arc-shaped portion (32) being connected to the direct current portion (31); An obstacle block (33), the obstacle block (33) being arranged on the arc-shaped portion (32), the obstacle block (33) being capable of realizing the diversion of liquid in the arc-shaped portion (32), and the recoil nozzle (53) being arranged on a side of the obstacle block (33) away from the straight flow portion (31).

6. The cemented carbide grinding material collecting device according to claim 1, characterized in that: The connection point between the sedimentation waterway (3) and the oil separation tank (2) is higher than the connection point between the sedimentation waterway (3) and the sewage tank (1).

7. The cemented carbide grinding material collecting device according to claim 5, characterized in that: The obstacle block (33) comprises a sharp corner (331), the sharp corner (331) faces the direct flow portion (31), and the center line of the sharp corner (331) coincides with the center line of the direct flow portion (31) of the same sinker unit; An arc block (332), wherein the arc block (332) is fixedly connected to the sharp corner (331).

8. The cemented carbide grinding material collecting device according to claim 5, characterized in that: The sinking unit further comprises a sinking motor (34), wherein the sinking motor (34) is arranged outside the sinking waterway (3), and an output shaft of the sinking motor (34) is rotationally sealed and arranged in the arc-shaped portion (32) and fixedly connected to the obstacle block (33).

9. A cemented carbide grinding material collecting device according to claim 8, characterized in that: The rotation directions of the two obstacle blocks (33) in two adjacent sinker units are opposite.

10. A method for collecting cemented carbide grinding material, using a cemented carbide grinding material collecting device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, the grinding fluid in the sewage pool (1) is transported to the sedimentation waterway (3), when the grinding fluid flows to the obstacle block (33), the obstacle block (33) will separate the grinding fluid into two water flows in opposite directions, a certain amount of backflow will be formed between the two water flows, and the backflow will cause the flow of the grinding fluid to have a blocking effect, and multiple sedimentation units will gradually establish multiple groups of backflow pressure areas to form a fluid dynamic pressure effect, which hinders the overall forward flow of the grinding fluid, so that the grinding material is fully precipitated from the grinding fluid, and finally at the end of the sedimentation waterway (3), the grinding fluid that has been precipitated through the sedimentation waterway (3) enters the filter assembly (4), the grinding fluid is filtered, and the clean grinding fluid without impurities is supplied to the external processing equipment; S2, when the equipment in the workshop stops production and rests in the early morning every day, the grinding fluid in the sewage pool (1) stops being transported to the sedimentation waterway (3), the filtering component (4) stops working, and the backwashing component (5) starts to spray clean solution into the multiple arc-shaped parts (32) of the sedimentation waterway (3), and the grinding material precipitated in the sedimentation waterway (3) is reversely flushed into the sewage pool (1) through the backwashing effect of the solution; S3, during the backwashing process, the obstacle block (33) starts to rotate under the drive of the sinking motor (34), driving the water flow to rotate and scraping off the grinding material attached to the periphery of the obstacle block (33), thereby accelerating the discharge of the grinding material into the sewage pool (1) under the influence of the backwashing water flow; at the same time, the rotating obstacle block (33) can strengthen the turbulent state of the water flow in the arc-shaped portion (32), thereby increasing the impact force of the water flow on the grinding material, and further increasing the cleaning effect of the grinding material, thereby achieving efficient and fully automatic cleaning of the sinking waterway (3); S4, the recovery component (6) is started to filter the grinding fluid in the sewage pool (1), and the grinding material is pressed into a mud cake with a very low water content and discharged from the bottom of the recovery component (6). The filtered clean liquid is then discharged into the sewage pool (1), thereby completing the convenient and fully automatic collection of the grinding material and the recycling of the grinding fluid.

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