Staged recycling treatment system for wastewater from oilstone surface processing

Abstract

This application discloses a graded recycling treatment mechanism for wastewater from oilstone surface processing, comprising a primary treatment tank, a secondary treatment tank, and a tertiary treatment tank. The inlet of the primary treatment tank is connected to the oilstone grinding device, and the outlet is connected to the inlet of the secondary treatment tank. The outlet of the secondary treatment tank is connected to the inlet of the tertiary treatment tank. Both the primary and secondary treatment tanks are equipped with at least one baffle with an overflow hole, enabling multi-stage sedimentation of the wastewater. Solid-liquid separation is achieved by utilizing the density difference between impurities and water. The primary treatment removes large particulate impurities, and the secondary treatment further removes small particulate impurities, solving the problems of poor treatment effect and poor water quality in existing single-stage sedimentation structures. The tertiary treatment tank has a larger volume, enabling stable water storage and water recycling, avoiding environmental pollution and water waste caused by direct discharge of wastewater.

Description

Technical Field

[0001] This application relates to the field of oilstone treatment equipment technology, and in particular to a graded recycling treatment mechanism for wastewater from oilstone surface processing. Background Technology

[0002] During the surface processing of oilstones, grinding operations generate wastewater containing a large amount of grinding debris, oil, and coolant. Currently, the methods for treating this wastewater are clearly inadequate. On the one hand, some small processing plants directly discharge wastewater, which not only wastes water resources but also pollutes the environment due to the pollutants in the wastewater, failing to meet environmental protection requirements. On the other hand, some companies transport wastewater to specialized wastewater treatment plants, which meets environmental standards but increases transportation and treatment costs and prevents the immediate recycling of water resources, leading to reduced production efficiency.

[0003] Furthermore, existing simple treatment devices are mostly single-stage sedimentation structures, which cannot effectively remove various impurities from wastewater through a single settling process. This results in poor water quality after treatment, making it unsuitable for direct reuse in production and requiring additional treatment or replenishment of fresh water, which is neither economical nor environmentally friendly. Therefore, there is an urgent need for a treatment system that can efficiently treat wastewater from oilstone grinding, achieve water resource recycling, and is cost-effective. Summary of the Invention

[0004] The purpose of this application is to overcome the shortcomings of the existing technology and provide a graded recycling treatment mechanism for wastewater from oilstone surface processing.

[0005] To achieve the above technical objectives, this application provides a graded recycling treatment mechanism for wastewater from oilstone surface processing, comprising: a primary treatment tank, the inlet of which is connected to the oilstone grinding device for receiving wastewater generated during grinding; a secondary treatment tank, the outlet of which is connected to the inlet of which is connected to the outlet ...

[0006] Furthermore, the outlet of the primary treatment tank is higher than the inlet of the secondary treatment tank, or a water pump is provided between the primary and secondary treatment tanks, which can pump the sewage in the primary treatment tank into the secondary treatment tank; and / or, the outlet of the secondary treatment tank is higher than the inlet of the tertiary treatment tank, or a water pump is provided between the secondary and tertiary treatment tanks, which can pump the sewage in the secondary treatment tank into the tertiary treatment tank.

[0007] Furthermore, a filtration mechanism is provided in the water pipe connecting the primary treatment tank and the secondary treatment tank, and / or in the water pipe connecting the secondary treatment tank and the tertiary treatment tank; the filtration mechanism is used to filter out impurities, thereby improving the cleanliness of the wastewater entering the next stage tank.

[0008] Furthermore, the filtration mechanism is detachably installed in the water pipe.

[0009] Furthermore, multiple sets of filtration mechanisms are installed in the water pipe, arranged side by side along the water flow direction to improve the filtration effect.

[0010] Furthermore, the primary treatment tank and / or secondary treatment tank are equipped with an overflow screen, which is located near the overflow hole on the inlet side; the baffle divides the inner cavity of the tank into at least two chambers. When the liquid level in the chamber is higher than the overflow hole on its outlet side, the sewage that cannot be effectively settled enters the next chamber through the overflow hole, and the overflow screen in the next chamber can filter the incoming sewage.

[0011] Furthermore, the bottom of the primary treatment tank and / or the secondary treatment tank is provided with a conical sludge hopper, and the end of the conical sludge hopper is provided with a sludge discharge valve.

[0012] Furthermore, the primary treatment tank, secondary treatment tank and / or tertiary treatment tank are equipped with level gauges, which are used to monitor the liquid level in the tank.

[0013] Furthermore, the primary treatment tank and / or secondary treatment tank are equipped with multiple water inlets, any one of which can be connected to an oilstone grinding device.

[0014] Furthermore, the volume of the tertiary treatment tank is 1-5 times the sum of the volumes of the primary and secondary treatment tanks; the volume of the tertiary treatment tank is configured to store no less than two days' worth of system wastewater and to meet the needs of simultaneously supplying water to the cleaning station, the spray system, and the circulating pipeline.

[0015] This application provides a graded recycling treatment mechanism for wastewater from oilstone surface processing, including a primary treatment tank, a secondary treatment tank, and a tertiary treatment tank. The inlet of the primary treatment tank is connected to the oilstone grinding device to receive the wastewater generated during grinding. The outlet of the primary treatment tank is connected to the inlet of the secondary treatment tank, and the outlet of the secondary treatment tank is connected to the inlet of the tertiary treatment tank. Both the primary and secondary treatment tanks are equipped with at least one baffle, and the baffle has an overflow hole. The primary treatment tank serves as a preliminary wastewater treatment unit, using internal baffles... The first stage of sedimentation, achieved through the overflow hole, primarily removes large particulate impurities (such as abrasive debris with a diameter ≥ 0.5 mm) from the wastewater, effectively reducing the impurity concentration and laying the foundation for secondary treatment. The secondary treatment tank, as a deep treatment unit, achieves a second stage of sedimentation through internal baffles and overflow holes, further removing small particulate impurities (such as debris with a diameter of 0.1-0.5 mm) remaining after primary treatment, thus significantly improving wastewater cleanliness and ensuring that the water entering the tertiary treatment tank meets the basic requirements for recycling. The tertiary treatment tank, as a treatment unit... The storage and distribution unit for treated clean water, with a volume larger than the primary and secondary treatment tanks, can stably store sufficient clean water. Simultaneously, it supplies water to the cleaning station or oilstone grinding device through the outlet, achieving water resource recycling and reducing fresh water consumption and wastewater discharge. The graded recycling treatment mechanism for wastewater from oilstone surface processing provided in this application, through baffles and overflow holes in the primary and secondary treatment tanks, enables multi-stage static sedimentation of wastewater. Solid-liquid separation is achieved by utilizing the density difference between impurities and water. Primary treatment removes large particulate impurities, and secondary treatment further removes small particulate impurities, solving the problems of poor treatment effect and water quality in existing single-stage sedimentation structures. The tertiary treatment tank has an even larger volume, enabling stable water storage and recycling, avoiding environmental pollution and water waste caused by direct wastewater discharge. It also eliminates the need to transport wastewater to a dedicated wastewater treatment plant, reducing transportation and treatment costs, achieving immediate water resource recycling, improving production efficiency, and effectively overcoming the shortcomings of existing treatment methods that are neither economical nor environmentally friendly. This meets the demand for efficient wastewater treatment, recycling, and low-cost treatment during oilstone surface processing. Attached Figure Description

[0016] Figure 1 A schematic diagram of a graded recycling treatment mechanism for wastewater from oilstone surface processing provided in this application; Figure 2 This is a structural schematic diagram of a primary or secondary water treatment tank provided in this application. Detailed Implementation

[0017] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0018] When processing the surface of an oilstone, multiple grinding passes are required. To prevent excessive heat generation and damage caused by high-speed friction between the oilstone and the grinding disc, and to prevent the spread of grinding dust, environmental pollution, and impact on processing accuracy, cooling water must be continuously sprayed onto the grinding area. During the spraying process, the cooling water mixes with the powder removed from the oilstone surface, debris from the wear of the grinding disc, and suspended dust from the surrounding environment, forming a mixed liquid containing a large amount of solid impurities. This mixed liquid is the wastewater described in this application.

[0019] Because the solid impurities (such as oilstone powder, metal shavings, etc.) contained in wastewater can affect its reuse (e.g., it may clog pipes or scratch processed parts when reused for spraying), and direct discharge will cause the deposition of environmental pollutants and fail to meet environmental protection requirements, wastewater needs to be treated before reuse or discharge.

[0020] Therefore, this application provides a graded recycling treatment mechanism for wastewater from oilstone surface processing, comprising: a primary treatment tank 10, the inlet of which is connected to an oilstone grinding device for receiving wastewater generated during grinding; a secondary treatment tank 20, the outlet of which is connected to the inlet of which is connected to the outlet ...

[0021] For details, please refer to Figure 1 In the illustrated embodiment, the graded recycling treatment mechanism for wastewater from oilstone surface processing includes a primary treatment tank 10, a secondary treatment tank 20, and a tertiary treatment tank 30 arranged sequentially. The three tanks are arranged in series along the wastewater flow direction. The outlet of the primary treatment tank 10 is connected to the inlet of the secondary treatment tank 20 via a pipe, and the outlet of the secondary treatment tank 20 is connected to the inlet of the tertiary treatment tank 30 via a pipe.

[0022] Combined with reference Figure 2 Both the primary treatment tank 10 and the secondary treatment tank 20 are equipped with two baffles 1 (in other embodiments, only one baffle 1 may be installed in the tank, or three or more may be installed, depending on the actual treatment needs). The two baffles 1 are spaced apart along the water flow direction, and any one baffle 1 is vertically installed in the tank. The two baffles 1 cooperate to divide the inner cavity of their respective tanks into three independent chambers. Each baffle 1 is provided with an overflow hole 1a, which is located in the upper middle part of the baffle 1 and within the liquid level range of the inner cavity of the tank, for connecting the chambers separated by the baffles 1.

[0023] Specifically, the inlet of the primary treatment tank 10 is connected to the wastewater discharge end of the external oilstone grinding device. Wastewater containing grinding debris, oil, and other impurities generated during oilstone grinding flows into the initial chamber of the primary treatment tank 10 through the inlet via a pipe. The wastewater remains stationary in the initial chamber of the primary treatment tank 10, where some of the denser impurities (such as large grinding particles) settle to the bottom under gravity. When the liquid level in the initial chamber rises to the height of the overflow hole 1a, the upper clear liquid flows into the next chamber of the primary treatment tank 10 through the overflow hole 1a, completing one settling cycle. Figure 2 For example, the inner cavity of the water tank is divided into three chambers by two baffles 1, so that the sewage can undergo three sedimentation processes in the water tank and finally be discharged through the outlet.

[0024] The primary treatment tank 10 serves as the initial treatment unit for wastewater. Through the internal baffle 1 and overflow hole 1a, it achieves the first stage of static sedimentation, mainly removing large particulate impurities (such as grinding debris with a diameter ≥ 0.5 mm) from the wastewater. This effectively reduces the concentration of impurities in the wastewater, laying the foundation for secondary treatment.

[0025] The outlet of the primary treatment tank 10 is connected to the inlet of the secondary treatment tank 20 via a pipe, and the wastewater after primary treatment enters the secondary treatment tank 20. The secondary treatment tank 20 can also perform multi-stage sedimentation treatment of wastewater through baffle 1 and overflow hole 1a.

[0026] The secondary treatment tank 20 and the primary treatment tank 10 form a cascaded "pretreatment-retreatment" system. It is easy to understand that single-stage sedimentation can only remove some large particles; small particles, due to their slow settling speed and tendency to remain suspended, are difficult to completely separate. Through multiple consecutive sedimentations in the primary and secondary stages, impurities of different particle sizes can be gradually removed (the primary stage focuses on removing large particles, and the secondary stage focuses on removing small particles), thereby significantly improving the wastewater purification effect and ensuring that the water entering the tertiary treatment tank 30 meets the requirements for recycling.

[0027] The secondary treatment tank 20 serves as a deep treatment unit for wastewater. Through the internal baffle 1 and overflow hole 1a, it achieves a second stage of static sedimentation, which can further remove small particulate impurities (such as debris with a diameter of 0.1-0.5mm) remaining after the primary treatment, thereby significantly improving the cleanliness of the wastewater and ensuring that the water entering the tertiary treatment tank 30 meets the basic requirements for recycling.

[0028] The inlet of the tertiary water treatment tank 30 is connected to the outlet of the secondary water treatment tank 20 via a pipe. The tertiary water treatment tank 30 can receive and store the treated clean water. The outlet of the tertiary water treatment tank 30 can be connected to the inlet of the cleaning station or the oilstone grinding device via a pipe to realize multi-stage or recycling of water.

[0029] The tertiary treatment water tank 30 serves as a storage and distribution unit for treated clean water. Because its volume is larger than that of the primary and secondary treatment water tanks, it can stably store a sufficient amount of clean water. At the same time, it supplies water to the cleaning station or oilstone grinding device through the outlet, realizing the recycling of water resources and reducing the consumption of fresh water and sewage discharge.

[0030] The graded recycling treatment mechanism for wastewater from oilstone surface processing provided in this application, through baffles 1 and overflow holes 1a in the primary treatment tank 10 and the secondary treatment tank 20, enables multi-stage static sedimentation of wastewater. Solid-liquid separation is achieved by utilizing the density difference between impurities and water. The primary treatment removes large particulate impurities, and the secondary treatment further removes small particulate impurities, solving the problems of poor treatment effect and poor water quality in existing single-stage sedimentation structures. The tertiary treatment tank 30 has a larger volume, which can stably store water and realize water recycling, avoiding environmental pollution and water waste caused by direct discharge of wastewater. At the same time, it eliminates the need to transport wastewater to a dedicated wastewater treatment plant, reducing transportation and treatment costs, realizing the immediate recycling of water resources, improving production efficiency, and effectively overcoming the defects of existing treatment methods that are neither economical nor environmentally friendly. It meets the demand for efficient treatment, recycling, and low cost of wastewater in the oilstone surface processing process.

[0031] To facilitate water flow to the next stage water tank, the outlet of the primary treatment tank 10 is higher than the inlet of the secondary treatment tank 20. Alternatively, a water pump is installed between the primary treatment tank 10 and the secondary treatment tank 20, which can pump the sewage in the primary treatment tank 10 into the secondary treatment tank 20.

[0032] By positioning the outlet of the primary treatment tank 10 higher than the inlet of the secondary treatment tank 20, natural water flow can be generated using gravitational potential energy, allowing wastewater to flow downstream without additional energy. This design is simple, energy-efficient, and avoids water flow interruptions due to power unit failure, ensuring wastewater enters the next treatment stage in a stable sequence and guaranteeing the continuity of the multi-stage sedimentation process.

[0033] When a significant height difference between water tanks cannot be achieved (e.g., due to space constraints) or when sewage flow resistance is high (e.g., due to long pipes or bends), a water pump provides mechanical power to force the sewage to flow downstream, overcoming the limitations of gravity flow and ensuring that sewage smoothly enters the secondary treatment tank 20 from the primary treatment tank 10, maintaining the normal operation of the treatment system. In actual use (automatic control can be achieved with a level gauge), the water pump needs to be started and stopped according to the conditions in the primary treatment tank 10 (e.g., level difference, pipe resistance). When the liquid level in the primary treatment tank 10 reaches the preset height, the water pump starts, pumping the sewage into the secondary treatment tank 20; when the liquid level drops to the set lower limit, the water pump is turned off to avoid affecting the settling effect.

[0034] Similarly, to facilitate water flow to the next stage water tank, the outlet of the secondary treatment water tank 20 is higher than the inlet of the tertiary treatment water tank 30. Alternatively, a water pump is installed between the secondary treatment water tank 20 and the tertiary treatment water tank 30, which can pump the sewage in the secondary treatment water tank 20 into the tertiary treatment water tank 30.

[0035] Optionally, a filtration mechanism is provided in the water pipe connecting the primary treatment tank 10 and the secondary treatment tank 20, and / or in the water pipe connecting the secondary treatment tank 20 and the tertiary treatment tank 30; the filtration mechanism is used to filter out impurities, thereby improving the cleanliness of the wastewater entering the next stage tank.

[0036] The function of the filtration mechanism is to specifically filter the sewage as it flows from the primary treatment tank 10 to the secondary treatment tank 20, or from the secondary treatment tank 20 to the tertiary treatment tank 30. This effectively intercepts fine impurities (such as tiny abrasive particles and suspended particles) that have not been removed by sedimentation, thereby improving the cleanliness of the sewage entering the next tank, reducing the treatment burden on the next tank, and ultimately improving the sewage purification effect of the entire treatment system.

[0037] The filtration mechanism can be a filter assembly, including a frame that matches the inner diameter of the water pipe and a metal filter fixed on the frame. The pore size of the metal filter can be selected as needed (e.g., 50-100 mesh). In use, the frame with the metal filter is snapped into a preset slot inside the water pipe. When sewage flows through, the filter can directly intercept fine impurities in the water.

[0038] Alternatively, the filtration mechanism can be a packed filter cartridge, filled with filter media such as activated carbon or quartz sand, and equipped with end caps with through holes at both ends. The filter cartridge is threaded to the flange interface of the water pipe. Wastewater flows in from one end, is adsorbed and trapped by the filter media, and the purified water flows out from the other end. When the filtration effect decreases, the filter cartridge can be unscrewed and the filter media inside replaced.

[0039] This application does not limit the specific configuration of the filtration mechanism.

[0040] Optionally, the filter mechanism can be detachably installed in the water pipe.

[0041] When the filter intercepts a certain amount of impurities, its filtration effect will decrease. The detachable design allows operators to remove the filter from the water pipe, remove the attached impurities, or directly replace it with a new filter to ensure the continuity of filtration efficiency, while reducing maintenance difficulty and cost, and avoiding the normal transportation of sewage due to filter blockage.

[0042] In one embodiment, the filter mechanism is installed using a snap-fit ​​design. The filter mechanism has elastic snaps on its outer periphery, and corresponding slots on the inner wall of the water pipe. During installation, the filter mechanism is pushed into the water pipe, causing the snaps to engage with the slots for secure installation. During disassembly, the snaps are pressed to disengage from the slots, allowing the filter mechanism to be removed from the water pipe. This design is simple to operate and requires no tools for installation or removal.

[0043] In another embodiment, the filter mechanism is connected to the water pipe via flanges. Flanges are located at both ends of the filter mechanism, which can be matched with the flanges at the ends of the water pipes and secured with bolts and nuts. When disassembly is required, the bolts and nuts are unscrewed, and the flanges are separated to remove the filter mechanism. This type of connection is robust and suitable for scenarios requiring high sealing performance. Disassembly facilitates thorough cleaning or replacement of the filter mechanism.

[0044] This application does not limit the specific installation method of the filtration mechanism.

[0045] Optionally, multiple sets of filtration mechanisms are installed in the water pipe, arranged side by side along the water flow direction to improve the filtration effect.

[0046] Multiple filtration units are arranged side-by-side along the water flow direction, achieving "step-by-step filtration" by intercepting impurities of different particle sizes in stages. Specifically, the pre-filter intercepts larger particles, preventing subsequent filters from failing due to rapid clogging; the subsequent filters further trap the smaller impurities that were not filtered in the pre-filter, thus significantly improving the overall filtration accuracy and effect, reducing the total amount of impurities entering the next water tank, and lowering the burden on subsequent treatment processes.

[0047] In one specific embodiment, two sets of filtration mechanisms are sequentially arranged along the water flow direction in the water pipe connecting the primary treatment tank 10 and the secondary treatment tank 20. The first set is a 100-mesh metal filter assembly with a snap-on detachable structure, mainly intercepting larger, non-settled abrasive particles (particle size ≥ 0.1 mm) in the wastewater. The second set is a filter cartridge filled with activated carbon, fixed in the water pipe by a flange connection, used to adsorb fine suspended particles (particle size ≤ 0.1 mm) and some oil stains in the water. The first set of filtration mechanisms can filter large impurities, preventing the second set of filtration mechanisms from failing due to clogging; the second set of filtration mechanisms can further purify the water quality; together, they can effectively improve the cleanliness of the wastewater entering the secondary treatment tank 20.

[0048] Optionally, the primary treatment tank 10 and / or the secondary treatment tank 20 are equipped with an overflow screen 2, which is located near the overflow hole 1a on the inlet side; the baffle 1 divides the inner cavity of the tank into at least two chambers. When the liquid level in the chamber is higher than the overflow hole on its outlet side, the sewage that cannot be effectively settled enters the next chamber through the overflow hole. The overflow screen 2 in the next chamber can filter the incoming sewage.

[0049] For details, please refer to Figure 2 In the illustrated embodiment, the overflow screen 2 has a mesh screen body with a screen hole diameter smaller than the overflow hole 1a. The overall shape is flat or arc-shaped, and the edges are fixed to the inner wall of the water tank by buckles or bolts.

[0050] Continue to refer to Figure 2 The water tank is equipped with two sets of baffles 1, dividing the inner cavity into three chambers. The initial chamber, closest to the inlet, does not have an overflow screen 2 to prevent excessive clogging of the screen holes and disruption of wastewater treatment when impurities are large. The next-stage chamber has an overflow screen 2, positioned near the overflow hole 1a on the inlet side, directly below or slightly below it. When wastewater flows into the next-stage chamber from the overflow hole 1a, the water first passes through the overflow screen 2. The screen intercepts fine impurities (such as incompletely settled abrasive particles) that are resuspended due to the water flow, preventing these impurities from spreading within the chamber and further improving the settling and purification effect of this stage of the water tank. Simultaneously, it reduces the amount of impurities entering the next-stage treatment tank, alleviating the burden on subsequent treatment processes.

[0051] Optionally, the bottom of the primary treatment tank 10 and / or the secondary treatment tank 20 is provided with a conical sludge hopper 3, and the end of the conical sludge hopper 3 is provided with a sludge discharge valve.

[0052] For details, please refer to Figure 2In the illustrated embodiment, the conical sludge hopper 3 is funnel-shaped, with its cross-section gradually tapering from top to bottom. The material of the conical sludge hopper 3 is the same as that of the main body of the water tank (such as metal or plastic), and a tubular sludge discharge port is connected to its end. A sludge discharge valve (such as a ball valve or gate valve) that can be manually or automatically controlled is installed at the sludge discharge port.

[0053] The bottom of the water tank can be equipped with only one conical sludge hopper 3, or multiple conical sludge hoppers 3 can be installed, corresponding one-to-one with the chambers, so as to discharge the deposited impurities as needed.

[0054] When wastewater settles in the chamber, denser impurities (such as grinding debris and fragments) sink under gravity. The conical structure guides the impurities to concentrate at the bottom of the hopper, preventing them from accumulating and remaining at the bottom of the tank. When the impurities accumulate to a certain amount, the sludge discharge valve at the end can be opened to quickly discharge the concentrated sludge, facilitating regular cleaning, reducing the difficulty of manual dredging, and preventing secondary pollution of water quality caused by prolonged sludge retention, thus ensuring the continuous settling efficiency of the tank.

[0055] Optionally, a level gauge 4 is provided in the primary treatment tank 10, the secondary treatment tank 20 and / or the tertiary treatment tank 30, and the level gauge 4 is used to monitor the liquid storage status in the tank.

[0056] The level gauge 4 is a monitoring device that can be float-type, ultrasonic-type, or electrode-type. It senses the liquid level height in real time through a sensor and can be equipped with a display device to output liquid level data.

[0057] For details, please refer to Figure 2 In the illustrated embodiment, each of the primary treatment tank 10, the secondary treatment tank 20, and the tertiary treatment tank 30 is equipped with a level gauge 4. The level gauge 4 is installed on one side of the inner wall of the tank, vertically along the height of the tank, with its lower end close to the bottom of the tank and its upper end higher than the maximum design level of the tank, so as to ensure that the entire liquid storage range from low to high level in the tank can be completely monitored.

[0058] The level gauge 4 can monitor the liquid level in each tank in real time. When the liquid level in the primary or secondary treatment tank is too high, it can prompt the operator to check the overflow or whether the conveying system is unobstructed to prevent sewage overflow. When the liquid level in the tertiary treatment tank 30 is too low, it can remind the operator to add water to ensure the circulating water demand. At the same time, the liquid level data can be used in conjunction with equipment such as water pumps to achieve automated control (such as automatically starting the water pump to transport sewage when the liquid level reaches a preset value), thereby improving the stability and intelligence of the system operation.

[0059] In one embodiment, the primary treatment water tank 10 and / or the secondary treatment water tank 20 are provided with multiple water inlets, any one of which can be connected to an oilstone grinding device.

[0060] To ensure production efficiency, multiple oilstone grinding devices are often arranged in the workshop. In this case, multiple oilstone grinding devices can be connected to the primary treatment water tank 10 at the same time through different water inlets, or some oilstone grinding devices can be connected to the primary treatment water tank 10 and others can be connected to the secondary treatment water tank 20.

[0061] This design allows multiple oilstone grinding units to be connected simultaneously to the primary treatment tank 10 via different inlets, accommodating scenarios where multiple oilstone grinding units operate concurrently within a workshop. This enables centralized collection and unified preliminary treatment of wastewater. Wastewater from multiple units is simultaneously introduced into the primary treatment tank 10 through multiple inlets. The multi-stage sedimentation structure of the primary treatment tank 10 provides preliminary purification of all wastewater, ensuring uniform pretreatment before entering the secondary treatment stage. This avoids issues of delayed collection due to excessive load on a single inlet, while also guaranteeing the continuity and stability of subsequent secondary and tertiary treatments, thereby improving overall wastewater treatment efficiency.

[0062] This system connects some oilstone grinding devices to the primary treatment tank 10 and others to the secondary treatment tank 20. This allows for tiered and differentiated treatment based on the varying concentrations of impurities in the wastewater generated by different grinding devices, optimizing the treatment load distribution. Specifically, wastewater from grinding devices producing more impurities (such as coarse grinding equipment) is introduced into the primary treatment tank 10 for sufficient settling; wastewater from devices with fewer impurities (such as fine grinding equipment) can be directly introduced into the secondary treatment tank 20 for further treatment. This reduces the load on the primary treatment tank 10, while simultaneously improving the flexibility and targeting of the overall treatment system, thereby increasing treatment efficiency while ensuring treatment effectiveness.

[0063] Optionally, the volume of the tertiary treatment tank 30 is 1 to 5 times the sum of the volumes of the primary treatment tank 10 and the secondary treatment tank 20. The volume of the tertiary treatment tank 30 is configured to store no less than two days' worth of system wastewater and to meet the needs of simultaneously supplying water to the cleaning station, the spray system, and the circulating pipeline.

[0064] The purpose of setting the volume of the tertiary treatment tank 30 to be 1-5 times the sum of the volumes of the primary treatment tank 10 and the secondary treatment tank 20 is to ensure that it has sufficient water storage capacity to meet the circulation needs of the entire sewage treatment system.

[0065] As is easily understood, the primary and secondary treatment tanks are mainly used for the sedimentation treatment of sewage. They have a small volume to ensure that the sewage can settle and circulate within them. The tertiary treatment tank 30, as the final water storage and supply unit, needs to store the treated clean water. A volume difference of 1-5 times allows it to hold a sufficient amount of treated water to meet the requirement of "storing no less than two days' worth of total system sewage." At the same time, it provides a stable water supply to multiple water-using points such as cleaning stations, spray systems, and circulation pipelines, avoiding production interruptions due to insufficient water storage, achieving continuous recycling of water resources, and balancing treatment efficiency with water supply stability.

[0066] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A hierarchical circulation treatment mechanism for oilstone surface processing wastewater, characterized in that, include: A primary treatment water tank (10) is connected to an oilstone grinding device for receiving wastewater generated during grinding. The secondary treatment tank (20) is connected to the inlet of the primary treatment tank (10). Both the primary treatment tank (10) and the secondary treatment tank (20) are provided with at least one baffle (1). The baffle (1) is provided with an overflow hole (1a). Through the baffle (1) and the overflow hole (1a), the sewage can be subjected to multi-stage static sedimentation treatment. The tertiary treatment water tank (30) has its outlet connected to the inlet of the tertiary treatment water tank (30). The volume of the tertiary treatment water tank (30) is greater than that of the primary treatment water tank (10) and / or the secondary treatment water tank (20). The tertiary treatment water tank (30) can stably store water, and the water discharged from the tertiary treatment water tank (30) can be used for cleaning or returned to the oilstone grinding device.

2. The hierarchical circulation treatment mechanism for oilstone surface processing wastewater according to claim 1, characterized in that, The outlet of the primary treatment tank (10) is higher than the inlet of the secondary treatment tank (20), or a water pump is provided between the primary treatment tank (10) and the secondary treatment tank (20), and the water pump can pump the sewage in the primary treatment tank (10) into the secondary treatment tank (20). And / or, the outlet of the secondary treatment tank (20) is higher than the inlet of the tertiary treatment tank (30), or, a water pump is provided between the secondary treatment tank (20) and the tertiary treatment tank (30), the water pump being able to pump the sewage in the secondary treatment tank (20) into the tertiary treatment tank (30).

3. The oil-stone surface processing wastewater fractional circulation treatment mechanism according to claim 1, characterized in that, A filtration mechanism is provided in the water pipe connecting the primary treatment water tank (10) and the secondary treatment water tank (20), and / or in the water pipe connecting the secondary treatment water tank (20) and the tertiary treatment water tank (30); The filtration mechanism is used to remove impurities, thereby improving the cleanliness of the wastewater entering the next stage water tank.

4. The oil stone surface processing wastewater fractional circulation treatment mechanism according to claim 3, characterized in that, The filtration mechanism is detachably installed in the water pipe.

5. The oil-stone surface processing wastewater fractional circulation treatment mechanism according to claim 3, characterized in that, The water pipe is equipped with multiple sets of the filtration mechanisms, which are arranged side by side along the water flow direction to improve the filtration effect.

6. The graded recycling treatment mechanism for wastewater from oilstone surface processing according to claim 1, characterized in that, The primary treatment water tank (10) and / or the secondary treatment water tank (20) are provided with an overflow screen (2), which is located near the overflow hole (1a) on the water inlet side; The baffle (1) divides the inner cavity of the water tank into at least two chambers. When the liquid level in the chamber is higher than the overflow hole on its outlet side, the sewage that cannot be effectively settled enters the next chamber through the overflow hole. The anti-overflow screen (2) in the next chamber can filter the sewage that flows in.

7. The graded recycling treatment mechanism for wastewater from oilstone surface processing according to claim 1, characterized in that, The bottom of the primary treatment tank (10) and / or the secondary treatment tank (20) is provided with a conical sludge hopper (3), and the end of the conical sludge hopper (3) is provided with a sludge discharge valve.

8. The graded recycling treatment mechanism for wastewater from oilstone surface processing according to claim 1, characterized in that, The primary treatment tank (10), the secondary treatment tank (20) and / or the tertiary treatment tank (30) are equipped with level gauges (4), which are used to monitor the liquid storage in the tank.

9. The graded recycling treatment mechanism for wastewater from oilstone surface processing according to claim 1, characterized in that, The primary treatment water tank (10) and / or the secondary treatment water tank (20) are provided with multiple water inlets, and any one of the water inlets can be connected to one of the oilstone grinding devices.

10. The graded recycling treatment mechanism for wastewater from oilstone surface processing according to any one of claims 1-9, characterized in that, The volume of the tertiary treatment tank (30) is 1 to 5 times the sum of the volumes of the primary treatment tank (10) and the secondary treatment tank (20); The volume of the three-stage treatment tank (30) is configured to store no less than two days' worth of system wastewater and to meet the needs of simultaneously supplying water to the cleaning station, the spray system, and the circulating pipeline.

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