Abrasive waste liquid conveying device

Abstract

The invention relates to the technical field of abrasive waste liquid conveying, in particular to an abrasive waste liquid conveying device which comprises a conveying body, a cache module and a backflushing module. Wherein a discharge hole is formed in one end of the conveying main body; the temporary storage module communicates with the discharging port, and the conveying main body can convey abrasive waste liquid through the temporary storage module, so that part of liquid in the abrasive waste liquid is stored in the temporary storage module; the buffering module is arranged on the conveying main body, the back-flushing module is arranged on the buffering module, the back-flushing module is communicated with the discharging port, and when the conveying main body stops working, the back-flushing module is used for conveying liquid stored in the buffering module into the conveying main body. The method has the effect of reducing deposition of solid particles.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of abrasive waste liquid conveying, and in particular to an abrasive waste liquid conveying device. BACKGROUND

[0002] At present, with the continuous development of modern industry towards high precision, high efficiency and green, environmental protection and sustainable development have become the core issues that manufacturing industry cannot avoid. In the process of modern mechanical processing such as metal cutting and precision grinding, in order to effectively cool and lubricate the high-speed moving tool or grinding wheel and workpiece, and at the same time to flush away the chips generated in the processing, a large amount of grinding fluid (also known as cooling fluid) is usually required.

[0003] In the processing process, the grinding fluid will be mixed with the detached abrasive particles (such as silicon carbide, aluminum oxide, etc.) and the metal chips ground from the workpiece to form a solid-liquid mixed waste containing a large amount of solid particles, which is usually called abrasive waste liquid. If this abrasive waste liquid is directly discharged, not only the valuable grinding fluid resources are wasted, the production cost is increased, but more importantly, the metal particles, abrasive particles and various chemical additives contained therein will cause serious pollution to the soil and water body, and bring great pressure to the ecological environment. Therefore, to implement "green manufacturing", to centrally process the abrasive waste liquid and to realize the purification and recycling of the grinding fluid have become the industry consensus and important environmental protection measures. In order to save cost and protect the environment, the abrasive waste liquid in the machine tool grinding tank needs to be pumped out through a pipeline and conveyed to a centralized filtering device for treatment to realize the recycling of the grinding fluid. In this process, a pump is usually used as the conveying power.

[0004] However, in the process of conveying this abrasive waste liquid by using a pump, since the density of the abrasive and metal chips is much greater than that of the liquid, they are extremely easy to settle in the fluid, so that when the pump stops working and the flow rate in the pipeline decreases, the suspended solid particles (abrasive and metal chips) will quickly settle, forming a deposition layer in the conveying pipeline, which in turn easily leads to the situation of overload or blockage when the pump starts next time.

[0005] Therefore, there is an urgent need for an abrasive waste liquid conveying device to effectively reduce the deposition of solid particles. SUMMARY

[0006] In order to reduce the deposition of solid particles, the present application provides an abrasive waste liquid conveying device.

[0007] The abrasive waste liquid conveying device provided by the present application adopts the following technical scheme: An abrasive waste liquid conveying device, comprising: a conveying body, one end of the conveying body is provided with a discharge port; The buffer module is in communication with the discharge port, and the conveying body can convey the abrasive waste liquid through the buffer module to store the liquid in the abrasive waste liquid in the buffer module. The backflush module is arranged on the buffer module and is in communication with the discharge port, and the backflush module is used to convey the liquid stored in the buffer module into the conveying body when the conveying body stops working.

[0008] By adopting the above technical solution, the conveying body can convey the abrasive waste liquid to the buffer module through the discharge port and then to the filtering device through the buffer module, so as to facilitate the treatment of the abrasive waste liquid and realize the recycling of the grinding fluid. At the same time, part of the liquid in the abrasive waste liquid is stored in the buffer module. When the conveying body stops working, the solid particles such as abrasives and metal abrasives are prone to sedimentation in the conveying body due to their greater density than the liquid and reduced flow rate. At this time, the backflush module conveys the liquid stored in the buffer module back into the conveying body, and the flow of the liquid can flush the sedimented solid particles, thereby facilitating the avoidance of the formation of a deposition layer in the conveying body and reducing the occurrence of overload or blockage of the conveying body when it is started next time, avoiding the leakage of the waste liquid caused by overload or blockage of the conveying body, saving costs and protecting the environment, and facilitating the subsequent conveying of the abrasive waste liquid and the stable operation of the entire conveying device, promoting the purification and recycling of the grinding fluid in the abrasive waste liquid treatment process.

[0009] Optionally, the buffer assembly includes a buffer tank and a filtering assembly arranged in the buffer tank, the buffer tank is provided with a first chamber and a second chamber, the filtering assembly is arranged between the first chamber and the second chamber, the backflush module includes a backflush assembly and a one-way assembly, the backflush assembly is arranged in the second chamber, and the one-way assembly is in communication with the second chamber and the discharge port respectively.

[0010] By adopting the above technical solution, when the conveying body conveys the abrasive waste liquid into the first chamber and then to the filtering device through the first chamber, part of the liquid in the abrasive waste liquid enters the second chamber through the filtering assembly. The filtering assembly can filter the liquid to reduce the solid particles carried in the liquid, thereby facilitating the subsequent backflush operation. When the conveying body stops working, the backflush assembly can push the liquid in the second chamber to the discharge port through the one-way assembly and then into the conveying body, preventing the solid particles in the abrasive waste liquid from depositing in the conveying body and reducing the occurrence of overload or blockage of the conveying body when it is started next time, thereby facilitating the avoidance of leakage of the waste liquid to save costs and protect the environment.

[0011] Optionally, the filtering assembly comprises a baffle plate and a filter element, the baffle plate is arranged between the first chamber and the second chamber, and the filter element is arranged between the baffle plate and the top wall of the buffer tank, and the filter element is used for filtering the liquid entering the second chamber from the first chamber.

[0012] By adopting the above technical scheme, when the abrasive waste liquid enters the second chamber from the first chamber, the filter element between the baffle plate and the top wall of the buffer tank can play a blocking role, so that the solid particles in the abrasive waste liquid cannot pass through the filter element smoothly, and the liquid can pass through the filter element, thereby realizing the filtering of the liquid entering the second chamber from the first chamber, avoiding the damage of the solid particles entering the second chamber to the subsequent equipment, and ensuring that the liquid entering the second chamber is relatively pure. The setting of the baffle plate enables the second chamber to store part of the liquid, thereby facilitating the normal operation of the subsequent backflushing module, reducing the failure probability caused by too much impurity, and improving the stability and service life of the entire abrasive waste liquid conveying device.

[0013] Optionally, the first chamber has a circular cross section, and a center line of the discharge port is arranged in a tangential direction of a circumference of the first chamber, and the discharge port is in communication with the first chamber.

[0014] By adopting the above technical scheme, the first chamber has a circular cross section, and the center line of the discharge port is arranged in the tangential direction of the circumference of the first chamber. When the abrasive waste liquid enters the first chamber from the discharge port, due to the structure of tangential communication, the abrasive waste liquid flows into the first chamber along the tangential direction of the circumference of the first chamber, so that the abrasive waste liquid forms a rotating flow in the circular first chamber. This rotating flow can make the solid particles in the abrasive waste liquid not easily deposited at the bottom of the first chamber, but continuously move with the rotating liquid, thereby avoiding the influence of the deposition and accumulation of the solid particles on the normal function of the buffer module and the subsequent conveying process, and improving the stability and reliability of the entire abrasive waste liquid conveying device.

[0015] Optionally, the backflushing assembly comprises a sliding driving element and an extrusion element, the sliding driving element is arranged on the buffer tank, the extrusion element is slidingly arranged in the second chamber and is attached to the inner wall of the second chamber, the sliding driving element is connected with the extrusion element, and the sliding driving element is used for driving the extrusion element to move in the second chamber.

[0016] By adopting the technical scheme, when the conveying main body stops working, the sliding driving member can drive the extrusion member to move in the second cavity, so as to promote the liquid stored in the second cavity to flow to the one-way assembly in communication with the second cavity, thereby facilitating the liquid to be conveyed into the conveying main body, so as to flush the conveying main body by the flow of the liquid, prevent the solid particles from depositing, and further facilitate to reduce the situation of overloading or blocking when the conveying main body is started next time, and guarantee the normal operation and service life of the abrasive waste liquid conveying device.

[0017] Optionally, the extrusion member comprises a push plate and a floating plate, the push plate and the floating plate are respectively slidably arranged in the second cavity and abut the inner wall of the second cavity, the push plate is connected with the sliding driving member, the floating plate can float on the liquid, the floating plate is provided with a displacement slot, the push plate can block the displacement slot when the push plate contacts the floating plate, and the floating plate is provided with a collection slot, and the collection slot is provided with a magnetic attraction member.

[0018] By adopting the technical scheme, the push plate and the floating plate can slide in the second cavity and abut the inner wall, when the conveying main body normally works, the liquid can flow through the displacement slot and be stored in the second cavity, because the floating plate can float on the liquid and is provided with the displacement slot. When the conveying main body stops working, the solid particles such as abrasives and metal grinding dust are easy to deposit in the conveying main body, at this time, the sliding driving member drives the push plate to move, the push plate gradually approaches the floating plate until the push plate contacts the floating plate and blocks the displacement slot, then the push plate continues to move to push the liquid to flow to the discharge port and then enter the conveying main body through the one-way assembly, the flow of the liquid plays a flushing effect on the deposited solid particles, prevents the solid particles from depositing in the conveying main body, and reduces the situation of overloading or blocking when the conveying main body is started next time. At the same time, the magnetic attraction member in the collection slot of the floating plate can adsorb the magnetic particles in the abrasive waste liquid, separate the magnetic particles from the abrasive waste liquid and collect the magnetic particles in the collection slot, which helps to reduce the content of the magnetic particles in the abrasive waste liquid, further reduces the risk of blocking caused by the deposition of the magnetic particles, guarantees the stable operation of the device and is beneficial to the subsequent treatment of the abrasive waste liquid.

[0019] Optionally, the cross section of the discharge port is circular, the one-way assembly comprises a liquid discharge pipe and a one-way valve arranged on the liquid discharge pipe, one end of the liquid discharge pipe is in communication with the second cavity, and the other end of the liquid discharge pipe is tangent to and in communication with the discharge port.

[0020] By adopting the technical scheme, the cross section of the discharge port is circular, the drain pipe is tangent to and communicates with the discharge port, so that the liquid flowing out of the drain pipe can enter the discharge port along the circumferential tangent direction of the discharge port to form a cyclone. The one-way valve ensures that the liquid can only flow from the second chamber to the discharge port, preventing the liquid in the discharge port from flowing back to the second chamber. In this way, when the conveying body stops working and the backflushing module conveys the liquid in the second chamber to the discharge port through the drain pipe, the liquid in the cyclone state can better flush the discharge port and the conveying body, reducing the deposition of solid particles in the discharge port and the conveying body, thereby facilitating the avoidance of the situation that the solid particles are deposited to cause overload or blockage when the conveying device is started next time.

[0021] Optionally, the conveying body comprises a shell, a rotating driving member and an impeller, the discharge port is arranged on the shell, a conveying flow channel in communication with the discharge port is arranged in the shell, a feeding port is arranged at an end of the shell away from the discharge port, a spiral groove is arranged on an inner wall of the feeding port, the feeding port communicates with the conveying flow channel through the spiral groove, the impeller is arranged in the feeding port, a circumferential side of the impeller extends between the feeding port and the conveying flow channel, and the rotating driving member is arranged on the shell, one end of the rotating driving member extends to the feeding port and is connected with the impeller.

[0022] By adopting the technical scheme, the rotating driving member drives the impeller to rotate, the impeller rotation drives the abrasive waste liquid to flow, the spiral groove arranged on the inner wall of the feeding port enables the abrasive waste liquid to flow into the conveying flow channel along the spiral groove when entering the feeding port, plays a guiding role, and enables the abrasive waste liquid to flow more smoothly into the conveying flow channel, thereby improving the conveying efficiency. Meanwhile, the conveying flow channel communicates with the discharge port, so as to ensure that the abrasive waste liquid can be smoothly output from the discharge port, thereby realizing effective conveying of the abrasive waste liquid. Moreover, since the circumferential side of the impeller extends between the feeding port and the conveying flow channel, the gap between the impeller and the conveying flow channel is small, thereby increasing the suction force and facilitating the conveying of the abrasive.

[0023] Optionally, a reamer is arranged in the feeding port, the reamer is coaxially arranged with the impeller and connected with the rotating driving member.

[0024] By adopting the technical scheme, since the reamer is coaxially arranged with the impeller and connected with the rotating driving member, the rotating driving member drives the impeller to rotate, and also drives the reamer to rotate synchronously. In the process that the abrasive waste liquid enters the conveying body from the feeding port, the rotating reamer can crush large particle substances, blocky or filamentous impurities and the like in the abrasive waste liquid, prevent the large particle substances from being accumulated in the feeding port to cause blockage, ensure that the abrasive waste liquid can smoothly pass through the feeding port, enter the conveying flow channel through the spiral groove, and then be stably conveyed to the buffer module, thereby improving the conveying efficiency and stability of the entire abrasive waste liquid conveying device.

[0025] Optionally, the impeller and the inner wall of the conveying flow channel are respectively coated with a silicon carbide coating.

[0026] By adopting the technical scheme, the silicon carbide coating is coated on the impeller and the inner wall of the conveying flow channel, when the abrasive waste liquid flows in the conveying flow channel and contacts the impeller, the silicon carbide coating can resist the abrasion of the solid particles in the abrasive waste liquid, reduce the wear of the inner wall of the conveying flow channel and the impeller caused by long-term impact of the abrasive, thereby prolonging the service life of the impeller and the conveying flow channel, ensuring the stable conveying of the abrasive waste liquid by the conveying body, and facilitating the stable operation of the abrasive waste liquid conveying device as a whole.

[0027] In summary, the present application has at least one of the following beneficial technical effects: 1. The buffer module can store liquid, and the backflushing module can convey the liquid in the buffer module to the conveying body when the conveying body stops working, so as to reduce the deposition of solid particles in the conveying body, avoid overload or blockage when the conveying body starts next time, thereby facilitating the subsequent conveying of the abrasive waste liquid and the stable operation of the entire conveying device; 2. The liquid in the abrasive waste liquid can be stored in the second chamber through the cooperation of the filter and the baffle, and the solid particles can be prevented from entering the second chamber, thereby facilitating the normal operation of the subsequent backflushing module, reducing the probability of failure caused by too much impurities, and improving the stability and service life of the entire abrasive waste liquid conveying device; 3. The cooperation of the sliding driving member, the push plate, the floating plate and the collection assembly enables the collection assembly to collect magnetic particles in the liquid, reduces the content of magnetic particles in the liquid, and when the conveying body stops working, the sliding driving member drives the push plate to move, the push plate first contacts the floating plate and blocks the displacement slot, and then pushes the liquid to flow to the discharge port through the one-way assembly and then into the conveying body, thereby preventing the deposition of solid particles. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a schematic view of the overall structure of an abrasive waste liquid conveying device in Embodiment 1 of the present application.

[0029] Figure 2 is a side view of an abrasive waste liquid conveying device in Embodiment 1 of the present application.

[0030] Figure 3 is a sectional view along line A-A in Figure 2

[0031] Figure 4 is a schematic view of the internal structure of the feed inlet of an abrasive waste liquid conveying device in Embodiment 1 of the present application.

[0032] Figure 5 is a partial structural sectional view of an abrasive waste liquid conveying device in Embodiment 1 of the present application.​

[0033] Figure 6 is a schematic view of the overall structure of an abrasive waste liquid conveying device according to an embodiment of the present application.

[0034] Figure 7 is a partial structure sectional view along Figure 6 line B-B in FIG. 1.

[0035] Figure 8 is a side view of an abrasive waste liquid conveying device according to an embodiment of the present application.

[0036] Figure 9 is a partial structure sectional view along Figure 8 line C-C in FIG. 2.

[0037] Legend of reference signs: 1, conveying body; 11, shell; 111, feeding port; 112, discharging port; 113, conveying flow channel; 114, helical groove; 12, rotating driving member; 121, motor; 122, transmission shaft; 13, impeller; 14, reamer; 2, buffer module; 21, buffer tank; 211, first chamber; 212, second chamber; 22, filter assembly; 221, baffle; 222, filter member; 3, backflushing module; 31, backflushing assembly; 311, sliding driving member; 312, extrusion member; 3121, push plate; 3122, floating plate; 3123, accommodation groove; 3124, collection groove; 3125, magnetic attraction member; 32, one-way assembly; 321, liquid discharge pipe; 322, one-way valve. DETAILED DESCRIPTION

[0038] The following will be described in detail below with reference to the accompanying drawings. Figures 1-9 The present application will be further described in detail.

[0039] The embodiments of the present application disclose an abrasive waste liquid conveying device.

[0040] It should be noted that in the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0041] Embodiment 1 With reference to Figure 1The abrasive waste liquid conveying device comprises a conveying body 1, one end of the conveying body 1 is communicated with a machine tool grinding box, and the other end of the conveying body 1 is communicated with a filtering device, so that the abrasive waste liquid in the machine tool grinding box is conveyed into the filtering device for treatment by the conveying body 1, and the recycling of the grinding liquid is realized. The design significantly reduces the risk of waste liquid leakage through a closed conveying system, reduces the pollution risk to the surrounding soil and water body, and further protects the environment.

[0042] It should be noted that how the machine tool grinding box and the filtering device are designed is a routine technical means for those skilled in the art, and therefore will not be described in detail in the embodiments of the present application.

[0043] Referring to Figure 2 and Figure 3 , the conveying body 1 comprises a shell 11, a rotating drive 12 and an impeller 13. The shell 11 is made of a high-strength, corrosion-resistant metal material, such as stainless steel, so that the shell 11 can withstand the corrosion and impact of the abrasive waste liquid. The use of corrosion-resistant materials helps to prolong the service life of the equipment and reduce the risk of waste liquid leakage due to component damage, thereby achieving environmental protection.

[0044] One end of the shell 11 is provided with an inlet 111, and the other end of the shell 11 is provided with an outlet 112. The inlet 111 is communicated with the machine tool grinding box, and the outlet 112 is communicated with the filtering device. A conveying flow channel 113 is arranged in the shell 11, and the conveying flow channel 113 is communicated with the outlet 112 and the inlet 111 respectively. In the embodiment, the cross section of the outlet 112 is circular to facilitate smooth flow of the liquid.

[0045] Referring to Figure 3 and Figure 4 , a spiral groove 114 is formed in the inner wall of the inlet 111, and the inlet 111 is communicated with the conveying flow channel 113 through the spiral groove 114. The design of the spiral groove 114 enables the abrasive waste liquid to flow along a spiral trajectory when entering the inlet 111, thereby guiding the abrasive waste liquid to flow more smoothly into the conveying flow channel 113.

[0046] Referring to Figure 3 , the rotating drive 12 comprises a motor 121 and a transmission shaft 122. The motor 121 is installed on the shell 11, and the transmission shaft 122 is rotatably connected to the shell 11. One end of the transmission shaft 122 is fixedly connected to the output end of the motor 121, and the other end of the transmission shaft 122 extends into the inlet 111 and is fixedly connected with the impeller 13, so that the motor 121 can drive the impeller 13 to rotate through the transmission shaft 122 to provide power for the conveying of the abrasive waste liquid.

[0047] In this embodiment, the transmission shaft 122 is connected with the inner wall of the shell 11 through a bearing, so as to facilitate the rotation of the transmission shaft 122 on the shell 11. Mechanical sealing devices are arranged at the positions where the transmission shaft 122 penetrates the shell 11, so as to prevent the leakage of the abrasive waste liquid and avoid the pollution of the workshop floor, soil and underground water, thereby ensuring the occupational health and safety of the operators and being the key technical guarantee for realizing clean production.

[0048] It should be noted that the specific design of the mechanical sealing device is a routine technical means for those skilled in the art, and thus is not described in detail in the embodiments of the present application.

[0049] The impeller 13 is located in the feed port 111, and the circumferential side of the impeller 13 extends between the feed port 111 and the conveying flow channel 113, so that the gap between the impeller 13 and the conveying flow channel 113 is small, thereby increasing the suction force when the impeller 13 rotates and facilitating the conveying of the abrasive. In this embodiment, the impeller 13 is made of aluminum alloy, which has moderate strength and light weight, and can reduce the load of the rotary driving member 12 while ensuring the structural strength.

[0050] In this embodiment, the inner walls of the impeller 13 and the conveying flow channel 113 are respectively coated with a silicon carbide coating. The silicon carbide coating has the characteristics of high hardness, wear resistance and corrosion resistance, and can effectively reduce the wear of the impeller 13 and the inner wall of the conveying flow channel 113 by the abrasive waste liquid, thereby prolonging the service life of the impeller 13 and the conveying flow channel 113. In other embodiments, the silicon carbide coating can also be replaced by a ceramic coating. These coatings not only have wear resistance, but also can resist chemical substances in the waste liquid, reduce the mixing of corrosion products into the environment, and reduce the pollution risk.

[0051] The implementation principle of the abrasive waste liquid conveying device in the embodiment of the present application is as follows: when the abrasive waste liquid needs to be treated, the motor 121 is started to drive the impeller 13 to rotate through the transmission shaft 122, thereby providing power for the conveying of the abrasive waste liquid, so as to facilitate the pumping of the abrasive waste liquid in the machine tool grinding box into the shell 11 through the feed port 111, and make the abrasive waste liquid pass through the conveying flow channel 113 and the discharge port 112 in turn and enter the filter device, so as to facilitate the treatment of the abrasive waste liquid and avoid the pollution of the abrasive waste liquid to the environment. The closed loop system ensures that the waste liquid is not discharged, and harmful substances are removed through subsequent filtration steps, thereby strengthening the pollution prevention effect.

[0052] Embodiment 2 Reference Figure 3 and Figure 5The difference between the embodiment and embodiment 1 is that a reamer 14 is further arranged in the feeding port 111, the reamer 14 is coaxially arranged with the impeller 13 and fixedly connected with the transmission shaft 122, so that when the motor 121 drives the impeller 13 to rotate through the transmission shaft 122, the reamer 14 also rotates synchronously, so as to crush the large particle substances, blocky or filamentous impurities and the like in the abrasive waste liquid by using the reamer 14, to prevent the large particle substances from being accumulated in the feeding port 111 to cause blockage.

[0053] In the embodiment, the reamer 14 is usually made of high-speed steel material, the high-speed steel has high hardness, high wear resistance and high heat resistance, and can meet the requirements of crushing the abrasive. The crushing function of the reamer promotes the complete decomposition of impurities, facilitates the subsequent filtration and removal of potential pollutants (such as metal fragments), and reduces the solid waste discharge to the environment.

[0054] Embodiment 3 With reference to Figure 6 and Figure 7 The difference between the embodiment and embodiment 1 is that the embodiment further comprises a buffer module 2 and a backflushing module 3.

[0055] Specifically, the buffer module 2 comprises a buffer tank 21 and a filtering assembly 22 arranged in the buffer tank 21. The buffer tank 21 is provided with a first chamber 211 and a second chamber 212, the first chamber 211 has a circular cross section, and the first chamber 211 is communicated with the filtering device through a pipeline, and the center line of the discharge port 112 is arranged along the tangent direction of the circumference of the first chamber 211 and communicated with the first chamber 211.

[0056] When the abrasive waste liquid enters the first chamber 211 from the discharge port 112, the abrasive waste liquid will flow into the first chamber 211 along the tangent direction of the circumference of the first chamber 211, so that the abrasive waste liquid forms a rotating flow in the circular first chamber 211, which can prevent the solid particles in the abrasive waste liquid from being deposited at the bottom of the first chamber 211, but continuously moving with the rotating liquid.

[0057] With reference to Figure 8 and Figure 9 The filtering assembly 22 comprises a baffle 221 and a filter 222. The baffle 221 is arranged between the first chamber 211 and the second chamber 212, and serves to separate the two chambers. The filter 222 is arranged between the baffle 221 and the top wall of the buffer tank 21, in the embodiment, the filter 222 is a filter screen, and the mesh size of the filter screen is selected according to the size of the solid particles in the abrasive waste liquid, generally a filter screen with smaller pore size is selected, which can effectively filter out most of the solid particles.

[0058] When the abrasive waste liquid enters the first chamber 211, and the liquid level of the abrasive waste liquid contacts the filter 222, part of the liquid in the abrasive waste liquid can pass through the filter 222 into the second chamber 212, at this time, the filter 222 can block the solid particles in the abrasive waste liquid, so as to realize the filtration of the liquid entering the second chamber 212 from the first chamber 211, avoid the damage of the solid particles to the subsequent equipment, and also ensure that the liquid entering the second chamber 212 is relatively pure, and the setting of the baffle 221 enables the second chamber 212 to store part of the liquid, thereby providing conditions for the normal operation of the subsequent backflushing module 3.

[0059] It should be noted that the conveying device in the embodiment will be higher than the filter for a period of time in the initial state, so that the amount of abrasive waste liquid entering the first chamber 211 is greater than the amount of abrasive waste liquid flowing out of the first chamber 211, so as to ensure that the liquid level of the abrasive waste liquid in the first chamber 211 can contact the filter 222, thereby ensuring that part of the liquid can be stored in the second chamber 212.

[0060] Referring to Figure 7 and Figure 9 , the backflushing module 3 comprises a backflushing assembly 31 and a one-way assembly 32. The backflushing assembly 31 is arranged in the second chamber 212, and the one-way assembly 32 is in communication with the second chamber 212 and the discharge port 112, so that the backflushing assembly 31 can discharge the liquid in the second chamber 212 into the discharge port 112 through the one-way assembly 32.

[0061] The backflushing assembly 31 comprises a sliding driving member 311 and a pressing member 312. The sliding driving member 311 is installed on the buffer box 21, and the pressing member 312 is slidingly arranged in the second chamber 212 and connected with the sliding driving member 311. In the embodiment, the sliding driving member 311 is a pneumatic cylinder, so that the pressing member 312 can be driven to move by the sliding driving member 311.

[0062] The pressing member 312 comprises a push plate 3121 and a floating plate 3122. The push plate 3121 and the floating plate 3122 are slidingly arranged in the second chamber 212 and abut the inner wall of the second chamber 212, and the push plate 3121 is fixedly connected with the sliding driving member 311. In the embodiment, the floating plate 3122 is made of plastic or rubber material, so that the floating plate 3122 can float on the liquid, and the floating plate 3122 is provided with a clearance groove 3123, and the push plate 3121 is adapted to the floating plate 3122.

[0063] When the liquid flows from the first chamber 211 into the second chamber 212, the liquid can flow to the lower side of the floating plate 3122 through the clearance groove 3123, the floating plate 3122 can move upward with the increase of the liquid, and when the sliding driving member 311 drives the push plate 3121 to contact the floating plate 3122, the push plate 3121 can block the clearance groove 3123.

[0064] The collecting groove 3124 is provided on the floating plate 3122, and a through hole is provided on the inner wall of the collecting groove 3124, so that the liquid can flow out of the collecting groove 3124. A magnetic member 3125 is installed in the collecting groove 3124. In this embodiment, the magnetic member 3125 is a magnet, so that the magnetic particles in the liquid can be adsorbed by the magnetic member 3125, and the content of the magnetic particles in the liquid is reduced. It should be noted that the magnetic particles refer to metal particles that can be adsorbed by a magnet.

[0065] The design of the magnetic member 3125 can efficiently remove toxic heavy metals such as rust and other metal pollutants, and cooperate with the subsequent filtering device to effectively prevent the toxic heavy metals from entering the environmental chain and protecting the ecological system.

[0066] Referring to Figure 7 and Figure 9 When the conveying body 1 (referring to Figure 6 ) stops working, the sliding driving member 311 drives the push plate 3121 to move. The push plate 3121 first contacts and blocks the floating plate 3122 to form the gap 3123, and then continues to push the liquid to flow to the discharge port 112 through the one-way assembly 32 and then enters the conveying body 1.

[0067] The one-way assembly 32 includes a liquid discharge pipe 321 and a one-way valve 322 arranged on the liquid discharge pipe 321. One end of the liquid discharge pipe 321 is in communication with the second chamber 212, and the other end is tangent to and in communication with the discharge port 112, so that the liquid can enter the discharge port 112 along the circumferential tangent direction of the discharge port 112, form a spiral flow, and better flush the discharge port 112 and the conveying body 1 to reduce the deposition of solid particles. The one-way valve 322 can ensure that the liquid can only flow from the second chamber 212 to the discharge port 112, preventing the liquid in the discharge port 112 from flowing back to the second chamber 212.

[0068] The implementation principle of the abrasive waste liquid conveying device in the embodiment of the application is as follows: when the conveying body 1 stops working, the sliding driving member 311 drives the push plate 3121 to move. The push plate 3121 first contacts and blocks the floating plate 3122 to form the gap 3123, and then continues to push the floating plate 3122 to move downward. The floating plate 3122 cooperates with the push plate 3121 to push the liquid to flow from the liquid discharge pipe 321 to the discharge port 112, so that the liquid can enter the discharge port 112 along the circumferential tangent direction of the discharge port 112, form a spiral flow, and better flush the discharge port 112 and the conveying body 1 to reduce the deposition of solid particles.

[0069] The above are preferred embodiments of the application, and do not limit the protection scope of the application. Therefore, any equivalent changes made on the basis of the structure, shape, and principle of the application should be covered by the protection scope of the application.

Claims

1. An abrasive waste liquid conveying device, characterized in that, include: The conveying body (1) has a discharge port (112) at one end. The buffer module (2) is connected to the discharge port (112), and the conveying body (1) can convey abrasive waste liquid through the buffer module (2) so that the liquid in the abrasive waste liquid is stored in the buffer module (2); A backflushing module (3) is installed on the buffer module (2). The backflushing module (3) is connected to the discharge port (112). When the conveying body (1) stops working, the backflushing module (3) is used to transport the liquid stored in the buffer module (2) to the conveying body (1).

2. The abrasive waste liquid conveying device according to claim 1, characterized in that: The buffer module (2) includes a buffer box (21) and a filter assembly (22) disposed in the buffer box (21). The buffer box (21) is provided with a first chamber (211) and a second chamber (212). The filter assembly (22) is disposed between the first chamber (211) and the second chamber (212). The first chamber (211) is connected to the discharge port (112). The backflushing module (3) includes a backflushing assembly (31) and a one-way assembly (32). The backflushing assembly (31) is disposed in the second chamber (212). The one-way assembly (32) is connected to the second chamber (212) and the discharge port (112) respectively.

3. The abrasive waste liquid conveying device according to claim 2, characterized in that: The filter assembly (22) includes a baffle (221) and a filter element (222). The baffle (221) is disposed between the first chamber (211) and the second chamber (212). The filter element (222) is disposed between the baffle (221) and the top wall of the buffer tank (21). The filter element (222) is used to filter the liquid entering the second chamber (212) from the first chamber (211).

4. The abrasive waste liquid conveying device according to claim 2, characterized in that: The first chamber (211) has a circular cross-section, and the center line of the discharge port (112) is arranged along the tangent direction of the circumference of the first chamber (211). The discharge port (112) is connected to the first chamber (211).

5. The abrasive waste liquid conveying device according to claim 2, characterized in that: The recoil assembly (31) includes a sliding drive (311) and an extrusion member (312). The sliding drive (311) is disposed on the buffer box (21). The extrusion member (312) is slidably disposed in the second chamber (212) and fits against the inner wall of the second chamber (212). The sliding drive (311) is connected to the extrusion member (312). The sliding drive (311) is used to drive the extrusion member (312) to move in the second chamber (212).

6. The abrasive waste liquid conveying device according to claim 5, characterized in that: The extrusion member (312) includes a push plate (3121) and a float plate (3122). The push plate (3121) and the float plate (3122) are slidably disposed in the second chamber (212) and are attached to the inner wall of the second chamber (212). The push plate (3121) is connected to the sliding drive member (311). The float plate (3122) can float on the liquid. The float plate (3122) is provided with a clearance groove (3123). When the push plate (3121) contacts the float plate (3122), the push plate (3121) can block the clearance groove (3123). The float plate (3122) is provided with a collection groove (3124). A magnetic suction member (3125) is provided in the collection groove (3124).

7. The abrasive waste liquid conveying device according to claim 2, characterized in that: The discharge port (112) has a circular cross-section. The one-way component (32) includes a drain pipe (321) and a one-way valve (322) disposed on the drain pipe (321). One end of the drain pipe (321) is connected to the second chamber (212), and the other end of the drain pipe (321) is tangent to and connected to the discharge port (112).

8. The abrasive waste liquid conveying device according to claim 2, characterized in that: The conveying body (1) includes a housing (11), a rotary drive (12), and an impeller (13). The discharge port (112) is located on the housing (11). A conveying channel (113) communicating with the discharge port (112) is provided inside the housing (11). An inlet (111) is provided at one end of the housing (11) away from the discharge port (112). A spiral groove (114) is provided on the inner wall of the inlet (111). The inlet (111) is connected to the conveying channel (113) through the spiral groove (114). The impeller (13) is disposed in the inlet (111). The circumference of the impeller (13) extends to the space between the inlet (111) and the conveying channel (113). The rotary drive (12) is disposed on the housing (11). One end of the rotary drive (12) extends to the inlet (111) and is connected to the impeller (13).

9. The abrasive waste liquid conveying device according to claim 8, characterized in that: A reamer (14) is provided inside the feed inlet (111). The reamer (14) is coaxially arranged with the impeller (13) and connected to the rotary drive (12).

10. The abrasive waste liquid conveying device according to claim 8, characterized in that: The impeller (13) and the inner wall of the conveying channel (113) are respectively coated with silicon carbide coating.

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