Stone cutting wastewater purification device

Abstract

A stone cutting wastewater purification device comprises a shell, a filter unit, a wastewater input unit, a purified water output unit, a recovery tank and a backwashing device, the shell is of a cuboid structure, and a filter chamber and a backwashing chamber are arranged in the shell; the filtering unit comprises a micro-filtration membrane, the filtering aperture of the micro-filtration membrane is 0.1 micron, and the micro-filtration membrane is arranged in the filtering chamber; the wastewater input unit is used for introducing wastewater generated in the stone cutting process into the device; the purified water output unit is connected to the recovery tank; the backwashing device comprises a backwashing pump, a backwashing pipeline and nozzles, the backwashing pump is arranged in the backwashing chamber, and the backwashing nozzles are uniformly distributed in the filter chamber, are connected with the backwashing pump through pipelines, and are used for backwashing the microfiltration membrane and preventing the membrane surface from being blocked. According to the invention, efficient purification of stone cutting wastewater and long-term stable operation of equipment are realized.

Description

Technical Field

[0001] This patent relates to a stone cutting wastewater purification device. Background Art

[0002] Stone cutting is a common and necessary process in the stone processing industry. During this process, the cutting machine uses large amounts of water to cool the blades and reduce dust generated during cutting. This wastewater, which contains large amounts of stone debris and suspended solids, must be treated before discharge or reuse. Otherwise, it will cause serious environmental pollution and waste water resources.

[0003] Shortcomings of existing technology

[0004] Low filtration efficiency: Traditional filtration devices are unable to efficiently remove tiny particles from wastewater, resulting in low effluent quality that is difficult to meet the requirements for further treatment or reuse.

[0005] Easy to clog: Filter media such as filter screens or filter cloths are easily clogged due to the accumulation of particulate matter. Frequent replacement and cleaning work increases maintenance costs and labor intensity.

[0006] High operating costs: Treatment methods such as chemical precipitation require a large amount of chemicals, which not only increases operating costs but may also cause secondary pollution and require further treatment.

[0007] Complex structure and difficult maintenance: Some high-efficiency filtration devices have complex designs and require professional technicians for operation and maintenance, which increases the difficulty and cost of use.

[0008] To sum up, the technical background section of this patent is intended to explain the current status of the existing technical field. The content of this section will provide the necessary background information for understanding the technical contributions and innovations of this patent. The signals disclosed in this background technology section are only intended to increase the understanding of the overall background of this patent and should not be regarded as implying any form of subjective consciousness. Utility Model Content

[0009] In view of the above, the purpose of this patent is to provide a stone cutting wastewater purification device to solve the technical problems of external discharge and subsequent maintenance.

[0010] In order to achieve the purpose of this patent, the technical solution adopted is a stone cutting wastewater purification device, including a shell, a filter unit, a wastewater input unit, a clean water output unit, a recovery tank, and a backwashing device. The shell is made of fiberglass to form a closed filter assembly. The shell has a rectangular structure and is provided with a filter chamber and a backwashing chamber; the filter unit includes a microfiltration membrane sintered from PP material, the filter pore size of the microfiltration membrane is 0.1 microns, and the microfiltration membrane is cylindrical and arranged inside the filter chamber; the wastewater input unit includes a wastewater input pipe, which is arranged on one side of the shell and is used to introduce wastewater generated during the stone cutting process into the device; the clean water output unit includes a clean water output pipe, which is arranged on the other side of the shell and is used to discharge the filtered clean water, and the clean water output pipe is connected to the recovery tank; the backwashing device includes a backwash pump, a backwash pipe and a nozzle. The backwash pump is arranged in the backwash chamber, and the backwash nozzles are evenly distributed in the filter chamber and are connected to the backwash pump through a pipe for backwashing the microfiltration membrane to prevent clogging of the membrane surface.

[0011] Furthermore, it also includes a support structure for fixing and supporting the shell, the support structure includes a base and a support frame, the base is rectangular, and the support frame is an integrated steel structure fixed under the base.

[0012] Furthermore, the filtration unit includes a plurality of microfiltration membranes arranged in parallel, and the microfiltration membranes are fixed by a support frame, and the support frame is a square grid structure.

[0013] Furthermore, it also includes a pretreatment device for removing large particles of impurities in the wastewater. The pretreatment device includes a spiral precipitator and a screen. The spiral precipitator is arranged in the middle of the wastewater inlet pipe. The spiral body of the spiral precipitator is cylindrical and has spiral blades inside. The screen is flat and is arranged downstream of the wastewater inlet pipe.

[0014] Furthermore, a water quality monitoring sensor and a microcontroller are provided in the recovery tank. The water quality monitoring sensor includes a turbidity sensor and a pH sensor. The turbidity sensor and the pH sensor are electrically connected to the microcontroller.

[0015] Beneficial effects of this patent:

[0016] High-efficiency filtration: The microfiltration membrane is made of sintered PP material with a filtration pore size of 0.1 micron, which can effectively remove tiny particles and suspended matter in wastewater, improve the water quality, and is suitable for further treatment or reuse.

[0017] Anti-clogging design: The microfiltration membrane is regularly backwashed through the backwash device to prevent clogging of the membrane surface, ensure long-term stable operation, and reduce maintenance frequency and cost.

[0018] Stable structure and easy maintenance: The square grid structure has high stability, supports the microfiltration membrane, is easy to disassemble and clean, simplifies the maintenance process, and improves work efficiency.

[0019] Intelligent monitoring: Equipped with water quality monitoring sensors and microcontrollers to monitor the quality of purified water in real time and ensure stable water quality.

[0020] Comprehensive pretreatment: The wastewater input unit is equipped with pretreatment devices such as spiral precipitators and screens to effectively remove large particles of impurities, reduce the burden on the filtration unit, and extend the service life of the microfiltration membrane. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of this patent or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of this patent. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 It is a schematic diagram of the structure of this patent;

[0023] Figure 2 This is a schematic diagram of the internal structure of the shell of this patent;

[0024] Figure 3 This is a schematic diagram of the square grid structure of the support frame of this patent;

[0025] In the figure, 1-shell, 2-wastewater inlet pipe, 101-filtration chamber, 102-backwash chamber, 103-microfiltration membrane, 104-nozzle, 105-support frame, 201-spiral precipitator, 202-screen, 3-recovery tank. DETAILED DESCRIPTION

[0026] The following is an explanation of this patent in this embodiment based on the drawings and some implementation methods.

[0027] It should be noted that, unless there is a conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The following will describe this patent in detail with reference to the drawings and in combination with the embodiments.

[0028] like Figure 1-3 As shown, a stone cutting wastewater purification device includes a shell, a filtering unit, a wastewater input unit, a clean water output unit, a recovery tank, and a backwashing device.

[0029] In this embodiment, the shell is made of fiberglass and has a rectangular structure. A filter chamber and a backwash chamber are provided inside the shell. The fiberglass material has the characteristics of corrosion resistance and high strength, ensuring that the device can be used for a long time in harsh environments.

[0030] In this embodiment, the filtration unit includes a microfiltration membrane sintered from PP material. The filtration pore size of the microfiltration membrane is 0.1 microns. The microfiltration membrane is cylindrical and is arranged inside the filter chamber. The PP material microfiltration membrane has excellent chemical stability and mechanical strength, and can effectively filter the fine particles and suspended matter generated during the stone cutting process.

[0031] In this embodiment, the wastewater input unit includes a wastewater input pipe, which is arranged on one side of the shell and is used to introduce wastewater generated during the stone cutting process into the device. The input pipe material is corrosion-resistant and wear-resistant to ensure long-term stable operation.

[0032] In this embodiment, the purified water output unit includes a purified water output pipe, which is arranged on the other side of the shell and is used to discharge the filtered purified water. The purified water output pipe is connected to the recovery tank. The purified water output pipe is connected to the recovery tank through a sealing connector to prevent water leakage.

[0033] In this embodiment, the backwash device includes a backwash pump, a backwash pipe and a nozzle. The backwash pump is arranged in the backwash chamber. The backwash nozzles are evenly distributed in the filter chamber and are connected to the backwash pump through a pipe. They are used to backwash the microfiltration membrane to prevent clogging of the membrane. The backwash pump adopts a high-pressure pump and can provide sufficient water pressure for effective backwashing.

[0034] In this embodiment, a support structure for fixing and supporting the shell is also included. The support structure includes a base and a support frame. The base is rectangular, and the support frame is an integrated steel structure fixed under the base. The steel structure support frame has high strength and stability, can effectively support the entire device, and is easy to install and maintain.

[0035] In this embodiment, the filtration unit includes a plurality of microfiltration membranes arranged in parallel, and the microfiltration membranes are fixed by a support frame. The support frame is a square grid-like structure, which can stably fix the microfiltration membranes to ensure the efficiency and stability of the filtration process. The square grid-like structure can provide uniform support force, ensuring that each microfiltration membrane is evenly stressed during the filtration process, reducing the situation of excessive stress at a single point, thereby extending the service life of the microfiltration membrane.

[0036] In this embodiment, a pretreatment device for removing large particles of impurities in the wastewater is also included. The pretreatment device includes a spiral precipitator and a screen. The spiral precipitator is arranged in the middle of the wastewater inlet pipe. The spiral body of the spiral precipitator is cylindrical and has spiral blades inside. The screen is flat and is arranged downstream of the wastewater inlet pipe. The spiral precipitator can settle large particles of impurities through centrifugal force, and the screen further screens out fine particles to ensure that the wastewater entering the filter unit is relatively pure, thereby reducing the burden on the filter unit.

[0037] In this embodiment, a water quality monitoring sensor and a microcontroller are provided in the recovery tank. The water quality monitoring sensor includes a turbidity sensor and a pH sensor. The turbidity sensor and the pH sensor are electrically connected to the microcontroller. The water quality monitoring sensor can monitor the water quality of the purified water in real time.

[0038] How it works

[0039] The working principle of this patented stone cutting wastewater purification device is based on a multi-stage filtration and backwash device. By setting up different filtration units and pre-treatment devices, it can effectively remove various pollutants in the wastewater and ensure that the purified water quality meets the standards. The specific working principle is as follows:

[0040] Wastewater input and pretreatment: Wastewater generated during the stone cutting process enters the device's pretreatment unit through the wastewater input pipe. The pretreatment unit includes a spiral precipitator and a screen. The spiral precipitator uses centrifugal force to separate and settle large particles of impurities in the wastewater, while the screen is used to further remove fine particles, reducing the burden on the subsequent filtration unit.

[0041] Microfiltration: Pretreated wastewater enters the filtration chamber and is filtered through a microfiltration membrane. The microfiltration membrane is sintered from PP and has a pore size of 0.1 micron, effectively removing tiny particles and impurities from the wastewater. The filtered water then flows through a clean water outlet pipe into a recovery tank.

[0042] Backwash device: When too much impurities accumulate on the surface of the microfiltration membrane, causing the filtration efficiency to decrease, the backwash device is activated. Backwash nozzles evenly distributed in the filter chamber are used for reverse flushing to remove blockages on the membrane surface and restore the filtration performance of the microfiltration membrane.

[0043] Water Quality Monitoring and Control: Water quality monitoring sensors and a microcontroller are installed within the recovery tank to monitor purified water parameters, such as turbidity and pH, in real time. If water quality parameters do not meet preset standards, the microcontroller issues an alarm, prompting the operator to make necessary adjustments, such as activating the backwash system, to ensure that the effluent meets environmental discharge requirements.

[0044] Backwashing principle: After the device has been running for a period of time, a certain amount of suspended matter and particulate matter will accumulate on the surface of the microfiltration membrane, affecting the filtration effect. High-pressure water is transported to the backwashing nozzle through the backwashing pipe. The nozzle sprays water evenly onto the surface of the microfiltration membrane to wash away the attached impurity particles.

[0045] Backwash nozzle: The nozzle is designed as a nozzle with a small aperture, which can spray water to the surface of the microfiltration membrane to wash away the particles and suspended matter attached to the surface of the membrane. The arrangement of the backwash nozzle ensures that each microfiltration membrane surface can be evenly impacted by the backwash water flow.

[0046] Drain outlet at the bottom of the filter chamber. In one embodiment, a drain outlet is provided at the bottom of the filter chamber for discharging wastewater generated during the backwashing process. The drain outlet is connected to a special wastewater collection tank through a pipe.

[0047] The above is an example of a specific embodiment of this patent and is for reference only and is not intended to limit the scope of this patent. Without departing from the spirit and scope of this patent, those skilled in the art may make various changes and modifications to this patent, and such changes and modifications shall be included in the scope of protection of this patent.

[0048] The specific embodiments of this patent are provided for illustrative purposes only and do not limit the scope of protection of this patent. Various changes and modifications may be made to the specific embodiments of this patent without departing from the gist and spirit of this patent. Such changes and modifications are within the scope of this patent.

[0049] It is worth noting that: in the description of this patent, the meaning of "multiple" is two or more, unless otherwise clearly defined. In this patent, unless otherwise clearly defined and defined, the terms "installed", "connected", "connected", "fixed" and so on 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; the circuits described in this patent are all commonly used circuits in the field, and other related components are all existing commonly used components. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to the specific circumstances.

[0050] It will be apparent to those skilled in the art that this patent is not limited to the details of the exemplary embodiments described above, and that this patent can be implemented in other specific forms without departing from the spirit or essential characteristics of this patent. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of this patent is defined by the appended claims rather than the foregoing description, and it is intended that all variations within the meaning and scope of the claims be embraced within this patent. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A stone cutting wastewater purification device, comprising a housing, a filter unit, a wastewater input unit, a clean water output unit, a recovery tank, and a backwash device, characterized in that: The housing is made of glass fiber reinforced plastics to form a closed filter assembly. The housing is a rectangular parallelepiped structure, and a filter chamber and a backwash chamber are provided inside the housing. The filtration unit includes a microfiltration membrane made of PP sintered material, the filtration pore size of the microfiltration membrane is 0.1 micron, the microfiltration membrane is cylindrical and is arranged inside the filtration chamber; The wastewater input unit includes a wastewater input pipe, which is arranged on one side of the housing and is used to introduce wastewater generated during the stone cutting process into the device; The purified water output unit includes a purified water output pipe, which is provided on the other side of the housing and is used to discharge the filtered purified water. The purified water output pipe is connected to the recovery tank. The backwash device includes a backwash pump, a backwash pipe and a nozzle. The backwash pump is arranged in the backwash chamber. The backwash nozzles are evenly distributed in the filter chamber and connected to the backwash pump through a pipe. They are used to backwash the microfiltration membrane to prevent clogging of the membrane surface.

2. The stone cutting wastewater purification device according to claim 1, characterized in that: It also includes a supporting structure for fixing and supporting the shell. The supporting structure includes a base and a supporting frame. The base is rectangular and the supporting frame is an integrated steel structure fixed under the base.

3. The stone cutting wastewater purification device according to claim 1, characterized in that: The filtration unit includes a plurality of microfiltration membranes arranged in parallel, and the microfiltration membranes are fixed by a support frame, and the support frame is a square grid structure.

4. The stone cutting wastewater purification device according to claim 1, characterized in that: It also includes a pretreatment device for removing large particles of impurities in the wastewater. The pretreatment device includes a spiral precipitator and a screen. The spiral precipitator is arranged in the middle of the wastewater inlet pipe. The spiral body of the spiral precipitator is cylindrical and has spiral blades inside. The screen is flat and is arranged downstream of the wastewater inlet pipe.

5. The stone cutting wastewater purification device according to claim 1, characterized in that: A water quality monitoring sensor and a microcontroller are provided in the recovery tank. The water quality monitoring sensor includes a turbidity sensor and a pH value sensor. The turbidity sensor and the pH value sensor are electrically connected to the microcontroller.

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