Grinding wastewater recycling treatment system

Abstract

The utility model relates to the technical field of wastewater treatment, and disclose a grinding wastewater reuse treatment system. Grinding wastewater reuse treatment system, including the treatment box, the treatment box outside connection lead -in pipe, and the inside is provided with first compartment, the first compartment bottom is connected with the inclined plate, and the side is provided with second compartment, and the second compartment bottom is provided with filter plate, and the filter plate bottom is provided with filter layer, and the filter layer bottom is set up as recovery chamber, and recovery chamber side is connected with the drainage pump that can carry out the discharge of recovery chamber recovery water, first compartment inside sets up first extrusion structure, and second compartment inside is provided with second extrusion structure, and the inclined plate bottom is fixedly installed in second compartment plate side edge through bolt, and the second compartment plate and the inclined plate junction are provided with drainage groove. The device carries out mutual cooperation through the multistage filtration of the corresponding multiple structures of first compartment, second compartment etc., and the treatment effect and efficiency of wastewater are improved.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a grinding wastewater reuse treatment system. Background Technology

[0002] Wastewater treatment in the semiconductor industry is a crucial aspect of environmental protection in this field. Its core lies in the efficient purification of complex wastewater generated during production, which contains silicon powder, metal particles, and chemical reagent residues. This type of wastewater typically exhibits high suspended solids concentrations, strong acidity / alkalinity, and potential heavy metal pollution, requiring a multi-stage combined physicochemical process to achieve compliant discharge and resource recovery.

[0003] The treatment process generally includes three stages: pretreatment, main treatment, and advanced treatment. First, large particulate impurities are removed through bar filtration, and the pH is adjusted to neutral. Then, coagulation and sedimentation technology is used to aggregate small particles into flocs, which are then separated by an air flotation device to separate light pollutants. For heavy metal ions, ion exchange or membrane separation technology is used for selective removal. Finally, advanced treatment methods such as reverse osmosis or electrodialysis are used to achieve water reuse. Some advanced processes also introduce advanced oxidation technology to decompose recalcitrant organic matter and reduce solid waste volume through a sludge dewatering system. The entire system not only meets the stringent requirements of the "Electronic Industry Water Pollutant Discharge Standard" but also reduces fresh water consumption through a closed-loop water circulation design, reflecting the sustainable development concept of green manufacturing in the semiconductor industry.

[0004] Common methods for treating semiconductor grinding wastewater typically involve adjusting the pH value and then adding chemical coagulants to destabilize and flocculate suspended solids (SS) and colloids in the solution into large flocs. After sedimentation, the supernatant is returned to secondary water reuse or discharged after neutralization. The sludge after sedimentation needs to be dewatered or outsourced for treatment. Traditional semiconductor grinding wastewater treatment involves adding large amounts of coagulants and flocculants, which converts dissolved and suspended pollutants in the water, along with the added chemical agents themselves, into solid sludge. This results in a very large amount of sludge being produced, making filtration difficult and inefficient. Utility Model Content

[0005] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides a grinding wastewater reuse treatment system that features multi-stage filtration without the use of conversion sludge, thereby reducing sludge production. Furthermore, by sequentially passing through primary filtration, secondary filtration, and fine filtration, it improves the treatment effect and efficiency of wastewater.

[0006] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a grinding wastewater reuse treatment system, including a treatment tank, an inlet pipe connected to the outside of the treatment tank, and a first partition chamber inside the treatment tank. An inclined plate is connected to the bottom of the first partition chamber, and a second partition chamber is provided on its side. A filter plate is provided at the bottom of the second partition chamber, a filter layer is provided at the bottom of the filter plate, and a recovery chamber is provided at the bottom of the filter layer. A drain pump with its suction end inserted into the recovery chamber is installed at the bottom outside the treatment tank. A first extrusion structure is provided inside the first partition chamber, and a second extrusion structure is provided inside the second partition chamber.

[0007] As a preferred embodiment of the present invention, the first partition compartment includes a first partition plate welded to the top of the inside of the processing tank, and multiple sets of first partition grooves are arranged on the lower side of the first partition plate. The first partition compartment also includes a first drain plate welded to the bottom of the first partition plate.

[0008] As a preferred technical solution of this utility model, the first drain plate is composed of two parts, one part being a left part structure with a first drain hole and the other part being a right part structure without a first drain hole.

[0009] As a preferred embodiment of the present invention, the second partition compartment includes a second partition plate welded to the top of the inside of the treatment tank away from the first partition plate, and multiple sets of second partition grooves are arranged on the lower side of the second partition plate. The second partition compartment also includes a second drain plate welded to the bottom of the second partition plate.

[0010] As a preferred technical solution of this utility model, the second drain plate is composed of two parts: a left part structure with a second drain hole and a right part structure without a second drain hole.

[0011] As a preferred embodiment of this utility model, the bottom ends of both the first and second partition grooves are conical, and the opening of the conical bottom end of the first partition groove is larger than that of the conical bottom end of the second partition groove.

[0012] As a preferred embodiment of this utility model, the bottom end of the inclined plate is fixedly installed on the side of the second partition plate by bolts, and a drainage groove is provided at the connection between the second partition plate and the inclined plate.

[0013] As a preferred technical solution of this utility model, the first extrusion structure includes a first extrusion pump that is installed through the top of the first partition chamber, a first extrusion plate is installed at the end of the first extrusion pump, and the outer wall of the first extrusion plate is slidably connected to the inner wall of the first partition chamber.

[0014] As a preferred embodiment of the present invention, the second extrusion structure includes a second extrusion pump that is installed through the top of the second compartment, a second extrusion plate that is installed at the end of the second extrusion pump, and the outer wall of the second extrusion plate that is slidably connected to the inner wall of the second compartment.

[0015] As a preferred embodiment of this utility model, the filter layer consists of a gravel layer, a quartz sand layer, and an anthracite coal layer in sequence.

[0016] Compared with the prior art, this utility model provides a grinding wastewater reuse treatment system, which has the following beneficial effects: 1. This utility model precisely connects the connecting flange at the end of the inlet pipe to the sewage pipe, smoothly introducing the grinding wastewater into the treatment tank. The wastewater then enters the preset first partition chamber. The first extrusion pump is started, driving the first extrusion plate at the end to slide down along the inner wall of the first partition chamber, forming a uniform extrusion force on the wastewater in the chamber. Under the pressure, the wastewater smoothly passes through multiple sets of first partition grooves at the lower side of the first partition plate, and then is discharged through the first drain hole of the first drain plate. During this process, the first drain hole can effectively intercept impurities in the wastewater with a volume larger than the hole diameter. The impurities are blocked at the top of the first drain plate, thereby efficiently achieving the preliminary filtration treatment of the wastewater.

[0017] 2. In this invention, the wastewater, after initial filtration, first flows into the inclined plate at the bottom of the first partition chamber. Utilizing the inclined plate's slope, it quickly slides down and then precisely enters the second partition chamber through a drainage channel. The second extrusion pump is activated, causing the second extrusion plate to slide downwards along the inner wall of the second partition chamber, applying secondary pressure to the wastewater. The pressurized wastewater then flows through multiple sets of second partition channels at the lower side of the second partition plate and is discharged from the second drain hole of the second drain plate, completing the secondary filtration. Afterward, the secondary filtered wastewater flows sequentially through a filter plate and a filter layer. The filter plate first traps residual solid impurities, and then the filter layer performs fine purification, significantly improving the wastewater treatment effect and ensuring that the effluent quality meets standards.

[0018] 3. In this invention, when the first extrusion plate moves with the first extrusion pump, it continuously compresses the internal space of the first compartment. When the second extrusion pump drives the second extrusion plate to operate, it simultaneously compresses the internal space of the second compartment. The compression of space creates a stable pressure difference in the two compartments. Under the pressure drive, the flow rate of wastewater in the compartments is significantly accelerated, effectively shortening the residence time of wastewater in each treatment stage, greatly improving the overall system efficiency, and ensuring the efficient and continuous operation of grinding wastewater treatment. Attached Figure Description

[0019] Figure 1 This is a top view schematic diagram of the structure of this utility model; Figure 2 This is a three-dimensional structural diagram of the present invention; Figure 3This is a front view of the interior of this utility model; Figure 4 This is a schematic diagram of the internal three-dimensional structure of the present invention; Figure 5 This is a schematic diagram of the internal equiaxed side view structure of this utility model.

[0020] The components are as follows: 1. Processing tank; 2. Inlet pipe; 3. First partition chamber; 31. First partition plate; 32. First partition groove; 33. First drain plate; 34. First drain hole; 4. Inclined plate; 5. Second partition chamber; 51. Second partition plate; 52. Second partition groove; 53. Second drain plate; 54. Second drain hole; 6. Filter plate; 7. Filter layer; 8. Recovery chamber; 9. Drain pump; 10. First extrusion structure; 101. First extrusion pump; 102. First extrusion plate; 11. Second extrusion structure; 201. Second extrusion pump; 202. Second extrusion plate; 12. Drain groove. Detailed Implementation

[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0022] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Please see Figures 1-5A grinding wastewater reuse treatment system includes a treatment tank 1, an inlet pipe 2 connected to the outside of the treatment tank 1, and a first partition chamber 3 inside the treatment tank 1. The first partition chamber 3 includes a first partition plate 31 welded to the top of the treatment tank 1, and multiple sets of first partition grooves 32 arranged on the lower side of the first partition plate 31. The first partition chamber 3 also includes a first drain plate 33 welded to the bottom of the first partition plate 31. An inclined plate 4 is connected to the bottom of the first partition chamber 3, and a second partition chamber 5 is provided on its side. The second partition chamber 5 includes a second partition plate 51 welded to the top of the treatment tank 1 away from the first partition plate 31, and multiple sets of second partition grooves 52 arranged on the lower side of the second partition plate 51. The second partition chamber 5 also includes a second drain plate 53 welded to the bottom of the second partition plate 51. A filter plate 6 is provided, and a filter layer 7 is provided at the bottom of the filter plate 6. The bottom of the filter layer 7 is set as a recovery chamber 8. A drain pump 9 with its suction end inserted into the recovery chamber 8 is installed at the bottom of the outer side of the treatment box 1. A first extrusion structure 10 is provided inside the first partition chamber 3. The first extrusion structure 10 includes a first extrusion pump 101 that is installed through the top of the first partition chamber 3. A first extrusion plate 102 is installed at the end of the first extrusion pump 101. The outer wall of the first extrusion plate 102 is slidably connected to the inner wall of the first partition chamber 3. A second extrusion structure 11 is provided inside the second partition chamber 5. The second extrusion structure 11 includes a second extrusion pump 201 that is installed through the top of the second partition chamber 5. A second extrusion plate 202 is installed at the end of the second extrusion pump 201. The outer wall of the second extrusion plate 202 is slidably connected to the inner wall of the second partition chamber 5.

[0025] Furthermore, both the first extrusion pump 101 and the second extrusion pump 201 use SC63-100-S pneumatic cylinders.

[0026] First, the end of the inlet pipe 2 is connected to the drain pipe via a connecting flange, allowing the grinding wastewater to enter the treatment tank 1. The wastewater then enters the first partition chamber 3. Next, the first squeeze pump 101 is manually activated. The pump extends and retracts, causing the first squeeze plate 102 to slide downwards within the first partition chamber 3, thus squeezing the wastewater inside. The squeezed wastewater passes through the first partition groove 32 at the lower side of the first partition plate 31 and is discharged from the first drain hole 34 of the first drain plate 33. The first drain hole 34 of the first drain plate 33 traps impurities within the squeezed wastewater. Impurities larger than the first drain hole 34 will remain at the top of the first drain hole 34 and be blocked by the first drain plate 33, thus achieving preliminary filtration of the wastewater. At the same time, the filtered wastewater will flow into the inclined plate 4 after being discharged through the first drain hole 34. Since the inclined plate 4 is inclined, the wastewater will slide down the inclined plate 4, thus preventing the wastewater from settling on the surface of the inclined plate 4. The wastewater will then enter the second separation chamber 5 through the inclined surface of the inclined plate 4. After long-term use, the inclined plate 4 can be disassembled and replaced by removing the bolts that fix the inclined plate 4, thereby extending the service life of the device. The filtered wastewater enters the second compartment 5. The second squeeze pump 201 is manually started. The second squeeze pump 201 extends and retracts, causing the second squeeze plate 202 to slide downwards inside the second compartment 5, squeezing the filtered wastewater inside the second compartment 51. The squeezed wastewater passes through the second partition groove 52 at the lower side of the second compartment 51 and is discharged from the second drain hole 54 of the second drain plate 53, achieving secondary filtration of the wastewater. The secondary filtered wastewater flows sequentially through the second drain hole 54 into the filter plate 6 and the filter layer 7. The filter plate 6 further filters the impurities and solids in the secondary wastewater, and then it sequentially passes through a gravel layer, a quartz sand layer, and anthracite coal layer for fine filtration. During this process, the wastewater first flows through the gravel layer, where the particles... The filter layer has a large diameter and wide pores, which can quickly trap large-volume impurities such as suspended particles, silt, and fibers in the wastewater. Then, the wastewater enters the quartz sand layer. The quartz sand particles are even finer and have a uniform pore structure, which can trap the fine suspended particles and colloidal substances remaining in the wastewater. At the same time, the chemical stability of quartz sand reduces secondary pollution to the water quality and further improves the clarity of the water. Finally, the wastewater flows through the anthracite coal layer. Its fine particles and rich microporous structure can not only trap the trace suspended impurities that were not removed in the first two stages, but also remove some organic matter, odor substances and heavy metal ions in the wastewater through adsorption. At the same time, the wear-resistant and corrosion-resistant properties of anthracite coal can extend the service life of the filter layer 7, ultimately achieving fine purification of wastewater.

[0027] The side of the treatment box 1 is equipped with a hinged door that is normally closed during normal use of the device. The connection between the door and the side wall of the treatment box 1 is equipped with a rubber strip and a latch. After the device has been used for a period of time, the operator can open the door by unlocking the latch to clean the impurities deposited inside the treatment box 1. When the door is normally closed, the rubber strip seals the connection between the door and the treatment box 1, thereby preventing the liquid inside the treatment box 1 from flowing out through the gap between the treatment box 1 and the door.

[0028] This device is suitable for treating semiconductor industry grinding wastewater after sedimentation. In operation, the grinding wastewater is first introduced into the treatment tank 1 through the inlet pipe 2. Then, through the combined action of the first squeeze pump 101 and the first squeeze plate 102, the wastewater in the first partition chamber 3 is discharged through the first partition groove 32 at the lower end of the first partition plate 31 and then through the first drain hole 34 of the first drain plate 33, achieving preliminary filtration of the wastewater. The pre-treated wastewater then enters the second partition chamber 5 through the inclined plate 4 and the drainage trough 12, and is further treated by the second squeeze pump 201 and the first... The combined action of the two extrusion plates 202 causes the wastewater inside the second partition chamber 5 to be discharged from the second drain hole 54 of the second drain plate 53 after passing through the second partition groove 52 at the lower side of the second partition plate 51. This achieves secondary treatment of the wastewater. Finally, the wastewater is finely filtered through the filter plate 6 and the filter layer 7, which improves the treatment effect. At the same time, the first extrusion plate 101 and the second extrusion pump 201 compress the space inside the first partition chamber 3 and the second partition chamber 5, respectively, thereby accelerating the flow of wastewater inside the first partition chamber 3 and the second partition chamber 5 and improving the working efficiency.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A grinding wastewater reuse and treatment system, comprising a treatment tank (1), characterized in that: The processing box (1) is connected to the inlet pipe (2) on the outside and has a first partition chamber (3) inside. The bottom end of the first partition chamber (3) is connected to the inclined plate (4) and a second partition chamber (5) is provided on its side. The bottom end of the second partition chamber (5) is provided with a filter plate (6). The bottom end of the filter plate (6) is provided with a filter layer (7). The bottom end of the filter layer (7) is provided with a recovery chamber (8). A drain pump (9) with its suction end inserted into the recovery chamber (8) is installed at the bottom outside the processing box (1). The first partition chamber (3) is provided with a first extrusion structure (10), and the second partition chamber (5) is provided with a second extrusion structure (11).

2. The grinding wastewater reuse treatment system according to claim 1, characterized in that: The first compartment (3) includes a first partition plate (31) welded to the top of the inside of the treatment box (1), and multiple sets of first partition grooves (32) are arranged on the lower side of the first partition plate (31). The first compartment (3) also includes a first drain plate (33) welded to the bottom of the first partition plate (31).

3. The grinding wastewater reuse treatment system according to claim 2, characterized in that: The first drain plate (33) consists of two parts: a left part with a first drain hole (34) and a right part without the first drain hole (34).

4. The grinding wastewater reuse treatment system according to claim 1, characterized in that: The second compartment (5) includes a second partition plate (51) welded to the top of the inside of the treatment box (1) away from the first partition plate (31). Multiple sets of second partition grooves (52) are arranged on the lower side of the second partition plate (51). The second compartment (5) also includes a second drain plate (53) welded to the bottom of the second partition plate (51).

5. The grinding wastewater reuse treatment system according to claim 4, characterized in that: The second drain plate (53) consists of two parts: a left part with a second drain hole (54) and a right part without a second drain hole (54).

6. The grinding wastewater reuse treatment system according to claim 2, characterized in that: The bottom ends of the first partition groove (32) and the second partition groove (52) are both set as cones, and the opening of the cone bottom end of the first partition groove (32) is larger than that of the cone bottom end of the second partition groove (52).

7. The grinding wastewater reuse treatment system according to claim 4, characterized in that: The bottom end of the inclined plate (4) is fixedly installed on the side of the second partition plate (51) by bolts, and a drainage groove (12) is provided at the connection between the second partition plate (51) and the inclined plate (4).

8. The grinding wastewater reuse treatment system according to claim 2, characterized in that: The first extrusion structure (10) includes a first extrusion pump (101) that is installed through the top of the first compartment (3). A first extrusion plate (102) is installed at the end of the first extrusion pump (101). The outer wall of the first extrusion plate (102) is slidably connected to the inner wall of the first compartment (3).

9. The grinding wastewater reuse treatment system according to claim 4, characterized in that: The second extrusion structure (11) includes a second extrusion pump (201) installed through the top of the second compartment (5), and a second extrusion plate (202) is installed at the end of the second extrusion pump (201). The outer wall of the second extrusion plate (202) is slidably connected to the inner wall of the second compartment (5).

10. The grinding wastewater reuse treatment system according to claim 1, characterized in that: The filter layer (7) consists of a gravel layer, a quartz sand layer, and an anthracite coal layer in sequence.

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