A system and method for treating on-site mixing wastewater for grouting material pouring construction

Abstract

The present invention relates to the technical field of wastewater treatment, and discloses a system and method for treating on-site mixing wastewater for grouting material pouring construction, wherein a system for treating on-site mixing wastewater for grouting material pouring construction comprises a pretreatment module, a coagulation module arranged on one side of the pretreatment module, and a sedimentation module arranged on one side of the coagulation module; wastewater enters the sedimentation tank and flows upward from bottom to top, and the pretreatment module is used to preliminarily intercept and separate larger impurities in the wastewater, and wastewater enters the sedimentation tank and flows upward from bottom to top. The inclination of the inclined plate cooperates with the water flow from bottom to top, and accelerates the sedimentation of light impurities by gravity, shortens the path, and increases the separation speed; the shaking unit actively desilts to avoid sludge adhesion and film formation, keeps the inclined plate clean and has an effective sedimentation area, makes the effluent more uniform, and has a higher suspended matter removal rate, meeting the reuse or discharge requirements.

Description

Technical Field

[0001] The present invention relates to the technical field of wastewater treatment, and in particular to a system and method for treating on-site mixing wastewater used in grouting material pouring construction. Background Art

[0002] During the grouting construction process, on-site mixing wastewater comes from a wide range of sources and has a complex composition. It primarily includes: 1. Wastewater generated during the grouting process, such as mixer cleaning wastewater (residual grouting mixed with cleaning water) and residual material flushing water at the bottom of the mixing tank; 2. Wastewater from cleaning construction equipment and tools, including flushing water from pumps, hoppers, pipes, and other equipment that comes into contact with the grouting material; 3. Wastewater from site leaks and waste disposal, such as flushing water from residual grouting material on the mixing site surface and soaking and cleaning water from waste grouting material (such as initial setting waste); 4. Runoff from rainwater. Grouting material raw materials or waste materials stored outdoors on the construction site are washed away by rainwater, carrying large amounts of suspended matter and forming polluted wastewater. This wastewater enters the sedimentation tank and flows upward from the bottom. This wastewater contains high concentrations of suspended matter, such as cement particles and sand and gravel debris. Furthermore, because the grouting material components (such as cement and admixtures) are alkaline, direct discharge can cause environmental problems such as soil compaction and eutrophication.

[0003] Traditional treatment methods have significant limitations: pretreatment often uses simple screens to intercept large particles, but this has limited effectiveness in removing fine suspended solids; coagulation treatment often fluctuates due to uneven dosage of reagents; and the sedimentation process relies on fixed inclined plates or horizontal flow sedimentation tanks. Light impurities easily adhere to the plate surface to form a mud film, reducing the effective settling area, while heavy impurities easily clog the gaps, resulting in increased water flow resistance and reduced efficiency. Furthermore, firmly attached impurities require frequent manual cleaning, increasing costs and impacting construction continuity. Existing systems are also difficult to adapt to the site's fluctuating wastewater discharge volume and limited space. The treated water quality is insufficiently stable, making it difficult to meet reuse or discharge standards. An efficient, automatic, and highly adaptable treatment system is urgently needed. Summary of the Invention

[0004] In view of the existing technical problems that grouting wastewater has a wide range of sources and complex components, and traditional treatment methods have problems such as low efficiency, frequent manual cleaning, and poor adaptability, a field mixing wastewater treatment system for grouting material pouring construction is proposed.

[0005] Its purpose is to achieve efficient and automatic treatment of wastewater, improve water quality compliance, adapt to construction site needs, reduce maintenance costs, and ensure construction continuity.

[0006] The technical solution of the present invention is a field mixing wastewater treatment system for grouting material pouring construction, comprising a pretreatment module, a coagulation module arranged on one side of the pretreatment module, and a sedimentation module arranged on one side of the coagulation module;

[0007] The pretreatment module is used to preliminarily intercept and separate larger impurities in the wastewater, the coagulation module is used to flocculate smaller impurities and suspended matter in the wastewater, and the sedimentation module is used to precipitate the wastewater in the coagulation module;

[0008] The sedimentation module includes a sedimentation tank arranged on the ground, a plurality of sludge collection tanks arranged at the bottom of the sedimentation tank, a water inlet trough arranged on one side of the sedimentation tank, two partitions symmetrically arranged inside the sedimentation tank, a plurality of inclined plates arranged in a linear array on the opposite sides of the two partitions, a clear water area arranged on the top of the inclined plate, an outlet weir for discharging clear water is formed in the middle of the two partitions, the inclined plate is rotatably arranged on the partition and the side wall of the sedimentation tank, a shaking unit is arranged between the inclined plate and the side wall of the sedimentation tank, and the shaking unit is used to shake off the sludge on the inclined plate.

[0009] Furthermore, the shaking unit includes a rotating rod arranged on one side of the inclined plate, a rotating groove opened on the side wall of the sedimentation tank, the rotating rod rotates in the rotating groove, a torsion spring arranged between the rotating groove and the rotating rod, a mounting groove opened on one side of the rotating groove, a spring arranged in the mounting groove, a cylinder arranged on one side of the spring, a strip plate arranged on one side of the cylinder, limiting rods symmetrically arranged on both sides of one end of the strip plate, and a groove group opened inside one side of the rotating rod.

[0010] Furthermore, the groove group includes a push groove opened on one side of the rotating rod, a deflection groove opened on the top of the push groove, and a reset groove arranged on one side of the deflection groove, and the reset groove and the push groove and the deflection groove are smoothly connected, and the limit rod is located in the push groove and is slidably connected.

[0011] Furthermore, the absolute value of the slope of the deflection slot is smaller than the absolute value of the slope of the push slot, the slot group as a whole forms a U-shape with a contracted port, and the middle of the slot group is through-shaped, which is used to provide activity space for the strip plate.

[0012] Furthermore, the bottom of the pushing groove abuts against the strip plate, and the strip plate is inclined downward.

[0013] Furthermore, a plurality of arc-shaped shaking protrusions are alternately arranged at the top and bottom of the deflection slot, and the diameter of the limiting rod is smaller than the distance between the top and bottom of the deflection slot.

[0014] Furthermore, when the spring and the torsion spring are in the initial state, the limiting rod is located at the junction of the pushing groove and the reset groove.

[0015] Another object of the present invention is to provide a method for treating on-site mixing wastewater used in grouting material pouring construction, the purpose of which is to achieve efficient purification of grouting wastewater through a step-by-step treatment process of pretreatment, coagulation, and sedimentation, combined with the automatic dredging mechanism of the inclined plate shaking unit, to remove impurities of different particle sizes in a targeted manner, and to accelerate sludge stripping through the inclined plate shaking triggered by impurity accumulation, thereby reducing manual intervention, improving treatment continuity and stability, ensuring that the effluent water quality meets the construction reuse or discharge standards, and adapting to complex on-site working conditions.

[0016] To achieve the above object, the present invention provides the following technical solution: comprising the following steps: preliminary filtering and intercepting the stirred wastewater through a pretreatment module to remove the larger gravel and impurities mixed therein;

[0017] The wastewater from which larger gravel and impurities have been removed is then pumped into the coagulation module through pipes and delivery pumps, where coagulants are added to the wastewater to flocculate the suspended solids in the wastewater.

[0018] The coagulated wastewater is pumped into the sedimentation module. After entering the water inlet tank, the wastewater enters the sedimentation tank and flows upward from bottom to top. The heavier flocculated impurities fall directly into the sludge collection tank, and the lighter flocculated impurities flow from bottom to top into the inclined plate with the water flow;

[0019] Impurities adhere to the inclined plate. When they accumulate, the shaking unit is triggered to deflect and shake, causing the impurities attached to the inclined plate to fall off.

[0020] The precipitated wastewater enters the clean water area, passes through the baffle and enters the outlet weir to be discharged.

[0021] Furthermore, as the impurities adhere to the inclined plate accumulate, the impurities accumulate toward the bottom of the inclined plate under the action of their gravity, causing the inclined plate to rotate. When the inclined plate shakes, the impurities fall quickly under the combined action of their own weight and the shaking.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. By aligning the inclined plates with the upward flow of water, gravity accelerates the settling of lightweight impurities onto the plate surface, shortening the settling path and significantly improving impurity separation compared to traditional fixed inclined plates or horizontal sedimentation. Furthermore, the active desilting design of the shaking unit (impurity accumulation triggers reverse deflection and continuous shaking) prevents the long-term adhesion of sludge and the formation of a mud film, keeping the inclined plate surface clean and ensuring a stable effective settling area. This results in more uniform effluent quality in the clear water area and a higher suspended solids removal rate, meeting the high standards required for construction reuse or discharge.

[0024] 2. Traditional inclined plate sedimentation tanks require frequent downtime for manual cleaning of attached sludge, especially for highly viscous grouting material flocs. This leads to high maintenance costs and affects treatment continuity. This system, however, utilizes a mechanically linked automatic desilting mechanism (a self-locking design precisely controls trigger timing, while curved protrusions enhance the shaking and stripping effect). Once impurities accumulate to a certain level, they are automatically shaken off without manual intervention. This not only reduces maintenance downtime, labor intensity, and safety risks, but also avoids equipment damage caused by blockages, extending the system's continuous operation time and meeting the efficient treatment needs of construction sites. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Schematic diagram of the overall three-dimensional structure of the wastewater treatment system of the present invention;

[0026] Figure 2 This is a schematic structural diagram of the positional relationship between the wastewater treatment system and the ground of the present invention;

[0027] Figure 3 This is a schematic diagram of the overall three-dimensional structure of the precipitation module of the present invention;

[0028] Figure 4 This is a schematic diagram of the overall structure of a half-section of the precipitation module of the present invention;

[0029] Figure 5 Schematic diagram of the three-dimensional structure of the inclined plate of the present invention;

[0030] Figure 6 It is a schematic diagram of a half-section structure of the rotating rod of the present invention;

[0031] Figure 7 It is a schematic diagram of the exploded structure of the rotating rod and the strip plate of the present invention;

[0032] Figure 8 This is a schematic diagram of the front view of the structure of the rotating rod and the strip plate as a whole after half-section of the present invention;

[0033] Figure 9 It is a schematic diagram of the overall structure of the slot group of the present invention;

[0034] Figure 10 It is a schematic diagram of the overall structure of the installation groove and the rotation groove of the present invention.

[0035] In the picture:

[0036] 1. Pretreatment module; 2. Coagulation module; 3. Sedimentation module; 31. Sedimentation tank; 32. Sludge collection tank; 33. Water inlet trough; 34. Partition; 35. Inclined plate; 36. Clear water area; 37. Water outlet weir; 4. Shaking unit; 41. Rotating rod; 42. Rotating trough; 43. Mounting trough; 44. Spring; 45. Cylinder; 46. Strip plate; 47. Limiting rod; 48. Trough group; 481. Pushing trough; 482. Deflection trough; 483. Reset trough; 484. Shaking protrusion. DETAILED DESCRIPTION

[0037] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0038] Example 1, reference Figures 1-10 , which is the first embodiment of the present invention, provides an on-site mixing wastewater treatment system for grouting material pouring construction, including a pretreatment module 1, the pretreatment module 1 includes a collection well, the collection well is installed below the ground, when collecting wastewater, a drainage channel can be opened or the wastewater can be manually introduced into it, the circular grille installed in the collection well is used to intercept larger impurities, the coagulation module 2 installed on one side of the pretreatment module 1, and also includes a sedimentation module 3 installed on one side of the coagulation module 2; a delivery pump and a connecting pipe are provided between the pretreatment module 1, the coagulation module 2 and the sedimentation module 3, for pumping the wastewater into the next treatment module, the pretreatment module 1 is used to preliminarily intercept and separate larger impurities in the wastewater, and the coagulation module 2 is used to flocculate smaller impurities and suspended matter in the wastewater Coagulation treatment, the sedimentation module 3 is used to carry out sedimentation treatment on the wastewater in the coagulation module 2; the sedimentation module 3 includes a sedimentation tank 31 installed on the ground, the coagulation module 2 is installed below the ground, a plurality of sludge collection tanks 32 are installed at the bottom of the sedimentation tank 31, an inlet trough 33 is installed on one side of the sedimentation tank 31, two partitions 34 are symmetrically installed inside the sedimentation tank 31, a plurality of inclined plates 35 arranged in a linear array on the opposite sides of the two partitions 34, a clear water area 36 is arranged on the top of the inclined plate 35, and an outlet weir 37 for discharging clear water is formed in the middle of the two partitions 34. The inclined plate 35 is rotatably installed on the partition 34 and the side wall of the sedimentation tank 31, and a shaking unit 4 is installed between the inclined plate 35 and the side wall of the sedimentation tank 31. The shaking unit 4 is used to shake off the sludge on the inclined plate 35.

[0039] Specifically, when treating on-site mixing wastewater used in grouting construction, the wastewater is introduced into the pretreatment module 1. Larger impurities such as gravel are intercepted by a circular grille. After entering the collection well, the wastewater is pumped into the coagulation module 2. The coagulated wastewater is then pumped into the sedimentation module 3. During sedimentation, the wastewater enters the water inlet trough 33. The wastewater then enters the sedimentation tank 31 and flows upward from the bottom. Heavier flocculated impurities fall directly into the sludge collection tank 32, while lighter flocculated impurities flow from the bottom up into the inclined plate 35. Because the inclined plate 35 is inclined, the water flows along the inclined direction of the inclined plate 35, and impurities settle to the surface of the inclined plate 35 under the action of gravity. Because the inclined plate 35 has a certain slope, impurities that settle on the plate surface will slide down the plate surface due to gravity and gradually gather at the bottom of the inclined plate 35. When impurities gradually accumulate at the bottom of the inclined plate 35, the inclined plate 35 will deflect and rotate, triggering the shaking unit 4 to deflect to a certain extent and then suddenly deflect in the direction, accompanied by continuous shaking, so that the impurities attached to the inclined plate 35 can fall off quickly, accelerating the falling speed of the impurities after attachment, and then the precipitated wastewater enters the clean water area 36, ​​enters the outlet weir 37 from the partition 34 and is discharged.

[0040] The inclined setting of the inclined plate 35 is combined with the bottom-up flow direction of the water flow, and the synergistic effect of gravity and water flow is used to make light impurities quickly settle to the surface of the inclined plate 35 and slide down the plate. Compared with traditional horizontal sedimentation or fixed inclined plates 35, the impurity sedimentation path is shortened and the sedimentation efficiency is improved. At the same time, the design of the inclined plate 35 rotation and shaking unit 4 prevents impurities from adhering to and accumulating on the inclined plate 35 for a long time, keeps the surface of the inclined plate 35 clean, and maintains a stable sedimentation effect. The traditional inclined plate 35 is fixed and impurities are easy to accumulate at the bottom and clog the gaps of the inclined plate 35, resulting in increased water flow resistance and decreased sedimentation efficiency. For impurities with strong adhesion, the machine needs to be stopped for manual cleaning. In this system, the shaking unit 4 is automatically triggered after the inclined plate 35 rotates to a certain angle. The attached sludge is quickly shaken off through active shaking, which reduces the accumulation of impurities, reduces the risk of blockage, extends the continuous operation time, and improves the interception efficiency of the inclined plate 35 for impurities.

[0041] Reference Figures 4-10 The shaking unit 4 includes a rotating rod 41 fixedly connected to one side of the inclined plate 35, a rotating groove 42 opened on the side wall of the sedimentation tank 31, the rotating rod 41 rotates in the rotating groove 42, a torsion spring arranged between the rotating groove 42 and the rotating rod 41, a mounting groove 43 opened on one side of the rotating groove 42, a spring 44 fixedly connected in the mounting groove 43, a cylinder 45 fixedly connected to one side of the spring 44, a strip plate 46 fixedly connected to one side of the cylinder 45, a limiting rod 47 symmetrically fixedly connected to both sides of one end of the strip plate 46, and a groove group 48 opened inside one side of the rotating rod 41.

[0042] When the slant plate 35 is fixed, the impurities will accumulate at the bottom of the slant plate 35, causing the slant plate 35 to deflect. When the slant plate 35 is deflected, the rotating rod 41 torsional spring (not shown in the figure) is twisted. Since the strip plate 46 and the limit rod 47 are located in the groove group 48, the rotating rod 41 will squeeze the limit rod 47 when rotating, so that the limit rod 47 drives the strip plate 46 and the cylinder 45 to move, and the cylinder 45 compresses the spring 44 to move into the installation groove 43. When the rotating rod 41 continues to rotate, the limit rod 47 will eventually move out of the groove group 48. At this time, the rotating rod 41 continues to rotate, causing the strip rod and the limit rod 47 to re-enter the groove group 48, thereby driving the rotating rod 41 to suddenly deflect in the opposite direction. When the conventional slant plate 35 is fixed, impurities need to accumulate to a certain weight before they will naturally slide down. During this period, a large amount of sludge will adhere to the surface of the slant plate 35 for a long time, and even form a mud film, resulting in a reduction in the effective sedimentation area of ​​the slant plate 35, an increase in water flow resistance, and a gradual decrease in sedimentation efficiency with running time. The shaking unit 4 triggers deflection when impurities accumulate, causing the inclined plate 35 to suddenly shake in the opposite direction. This linkage mechanism can actively remove sludge when there is no large amount of sludge accumulation (only the trigger threshold is reached): the rotation and shaking action of the inclined plate 35 can impact the residual sludge in the gap, keep the water flow channel between the inclined plates 35 unobstructed, reduce water flow resistance, and avoid deformation or damage of the inclined plates 35 due to excessive local pressure.

[0043] Example 2, reference Figure 8-Figure 9 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that: the groove group 48 includes a pushing groove 481 opened on one side of the rotating rod 41, a deflection groove 482 opened on the top of the pushing groove 481, and a reset groove 483 opened on one side of the deflection groove 482, and the reset groove 483 is smoothly connected to the pushing groove 481 and the deflection groove 482, and the limiting rod 47 is located in the pushing groove 481 and is slidably connected.

[0044] When the cam 48 is in the closed position, the cam 48 is in the closed position, and the cam 48 is in the closed position, so that the cam 48 is in the closed position and the cam 48 is in the closed position.

[0045] Reference Figure 8The absolute value of the slope of the deflection groove 482 is smaller than the absolute value of the slope of the push groove 481. The groove group 48 as a whole forms a U-shape with a contracted port, and the middle part of the groove group 48 is through-shaped, which is used to provide activity space for the strip plate 46.

[0046] Specifically, the swash plate 35 can be suddenly deflected in the reverse direction (the direction in which the swash plate 35 is rotated due to accumulation of attached foreign matter is defined as the positive direction).

[0047] Reference Figure 8 The bottom of the pushing groove 481 abuts against the strip plate 46, and the strip plate 46 is inclined downward.

[0048] Specifically, a self-locking effect is formed between the rotating rod 41 and the strip plate 46. During the normal sedimentation stage of wastewater, small disturbances such as water flow impact and slight vibration will not cause the rotating rod 41 to rotate easily. Since the strip plate 46 is tilted downward, the abutment force between it and the bottom of the push groove 481 will form a reverse torque that hinders the rotation of the rotating rod 41. The rotating rod 41 will not rotate due to the torsional force of the torsion spring, ensuring the consistency and stability of the directions of each inclined plate 35, so that the rotating rod 41 forms a one-way abutment lock, and under the action of the spring 44, only when the weight of the impurities accumulated on the inclined plate 35 reaches a certain level (the torque generated by gravity exceeds the self-locking torque), can the rotating rod 41 be pushed to overcome the self-locking force and start to rotate. This design avoids the problem of jitter triggered by slight disturbances such as water flow fluctuations and equipment vibrations in traditional structures, ensuring that the inclined plate 35 maintains a stable inclination angle most of the time, ensuring that the water flows smoothly along the inclined plate 35 and impurities are efficiently settled, and the sedimentation environment will not be damaged (such as breaking up flocs and disrupting the water flow path) due to frequent shaking of the inclined plate 35.

[0049] Reference Figure 8-Figure 9 A plurality of arc-shaped shaking protrusions 484 are alternately arranged at the top and bottom of the deflection groove 482 , and the diameter of the limiting rod 47 is smaller than the distance between the top and bottom of the deflection groove 482 .

[0050] Specifically, after the limiting rod 47 enters the deflection slot 482, the return force of the spring 44 pushes the limiting rod 47 into the deflection slot 482. The limiting rod 47 alternately contacts the shaking protrusion 484, causing the rotating rod 41 to continuously shake after a sudden reverse deflection. As the limiting rod 47 slides along the deflection slot 482, it repeatedly strikes the top and bottom arc-shaped protrusions, driving the inclined plate 35 to shake synchronously through mechanical transmission. Unlike unidirectional deflection, this shaking generates multi-directional impact force, penetrating into the gaps and blind spots on the surface of the inclined plate 35, effectively stripping away tightly adhered stubborn sludge (such as solidified cement flocs in grouting wastewater and mud films formed by fine suspended matter). Compared with the impact force generated by only one reverse deflection in the design without protrusions, continuous shaking can "shake off" impurities at different positions and with different adhesion strengths on the inclined plate 35, avoid local residue, ensure the cleanliness of the surface of the inclined plate 35, and maintain an efficient sedimentation area. The sludge on the inclined plate 35 has a downward trend under the action of gravity, and high-frequency shaking will provide additional "power" for the sludge, causing it to slide quickly along the inclined plate 35 to the sludge collection pool 32 at the bottom, shortening the sludge's residence time on the inclined plate 35.

[0051] Reference Figure 8 When the spring 44 and the torsion spring are in the initial state, the limiting rod 47 is located at the junction of the pushing groove 481 and the reset groove 483.

[0052] Specifically, when the spring 44 and the torsion spring are in their initial state, the limiting rod 47 is located at the junction of the push slot 481 and the reset slot 483. This design, through precise initial position setting, provides reliable support for the cyclic operation of the shaking unit 4 and the stability of the system, ensuring the accuracy of the next trigger and forming a stable cycle. The rest of the structure is the same as that of Example 1.

[0053] Based on Examples 1-2, the working principle of the present invention is as follows: when the coagulated wastewater enters the inlet trough 33 of the sedimentation tank 31 and flows upward from bottom to top, heavy flocculated impurities fall directly into the bottom sludge collection tank 32; light flocculated impurities follow the water flow into the area of ​​the inclined plate 35. Due to the inclined setting of the inclined plate 35, the water flows upward along the plate surface, and the impurities settle to the plate surface under the action of gravity and slide down along the plate to accumulate. When the impurities accumulate to a certain level, the inclined plate 35 deflects and drives the rotating rod 41 to twist the torsion spring, squeezing the limit rod 47 and compressing the spring 44. After the limit rod 47 moves out of the groove group 48, it enters the deflection groove 482 under the action of the restoring force of the spring 44, causing the inclined plate 35 to suddenly deflect in the opposite direction. The alternating collision between the arc-shaped protrusion in the deflection groove 482 and the limit rod 47 produces continuous shaking. The impact force and turbulence remove the impurities on the plate surface, accelerating the sludge to slide into the sludge collection tank 32. After the impurities fall off, under the action of the torsion spring and the spring 44, the limit rod 47 returns to the initial position along the reset groove 483 and waits for the next cycle; the purified water is discharged from the water outlet weir 37 through the top clean water area 36, ​​realizing efficient automatic sedimentation.

[0054] Example 3, reference Figures 1-10 , which is the third embodiment of the present invention, provides a method for treating on-site mixing wastewater used in grouting material pouring construction:

[0055] The stirred wastewater is initially filtered and intercepted by the pretreatment module 1 to remove the larger gravel and impurities mixed therein;

[0056] The wastewater from which larger gravel and impurities have been removed is then pumped into the coagulation module 2 through a pipeline and a delivery pump, where a coagulant is added to the wastewater to flocculate the suspended solids in the wastewater.

[0057] The coagulated wastewater is pumped into the sedimentation module 3. After entering the water inlet trough 33, the wastewater enters the sedimentation tank 31 and flows upward from bottom to top. The heavier flocculated impurities fall directly into the sludge collection tank 32, and the lighter flocculated impurities follow the water flow from bottom to top into the inclined plate 35.

[0058] When impurities are attached to the inclined plate 35 and accumulate, the shaking unit 4 is triggered to deflect and shake, causing the impurities attached to the inclined plate 35 to fall off;

[0059] The precipitated wastewater enters the clean water area 36, ​​and is discharged from the partition 34 into the outlet weir 37. As the attached impurities accumulate in the inclined plate 35, the impurities will accumulate to the bottom of the inclined plate 35 under the action of their gravity, causing the inclined plate 35 to rotate. When the inclined plate 35 shakes, the impurities fall quickly under the combined action of their own weight and shaking.

[0060] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A system for treating wastewater from on-site mixing used in grouting construction, comprising a pretreatment module (1), a coagulation module (2) arranged on one side of the pretreatment module (1), and characterized in that: It also includes a sedimentation module (3) arranged on one side of the coagulation module (2); The pretreatment module (1) is used to perform preliminary interception and separation of larger impurities in the wastewater, the coagulation module (2) is used to perform flocculation treatment on smaller impurities and suspended matter in the wastewater, and the sedimentation module (3) is used to perform sedimentation treatment on the wastewater in the coagulation module (2); The sedimentation module (3) comprises a sedimentation tank (31) arranged on the ground, a plurality of sludge collection tanks (32) arranged at the bottom of the sedimentation tank (31), a water inlet trough (33) arranged on one side of the sedimentation tank (31), two partitions (34) symmetrically arranged inside the sedimentation tank (31), a plurality of inclined plates (35) arranged in a linear array on opposite sides of the two partitions (34), a clear water area (36) arranged on the top of the inclined plates (35), a water outlet weir (37) for discharging clear water formed in the middle of the two partitions (34), the inclined plates (35) rotatably arranged on the partitions (34) and the side walls of the sedimentation tank (31), a shaking unit (4) is arranged between the inclined plates (35) and the side walls of the sedimentation tank (31), and the shaking unit (4) is used to shake off the sludge on the inclined plates (35); The shaking unit (4) includes a rotating rod (41) provided on one side of the inclined plate (35), a rotating groove (42) provided on the side wall of the sedimentation tank (31), the rotating rod (41) rotating in the rotating groove (42), a torsion spring provided between the rotating groove (42) and the rotating rod (41), a mounting groove (43) provided on one side of the rotating groove (42), a spring (44) provided in the mounting groove (43), a cylinder (45) provided on one side of the spring (44), a strip plate (46) provided on one side of the cylinder (45), a limiting rod (47) symmetrically provided on both sides of one end of the strip plate (46), and a slot group (48) provided inside one side of the rotating rod (41); The slot group (48) includes a push slot (481) provided on one side of the rotating rod (41), a deflection slot (482) provided on the top of the push slot (481), and a reset slot (483) provided on one side of the deflection slot (482). The reset slot (483) is smoothly connected to the push slot (481) and the deflection slot (482), and the limit rod (47) is slidably connected in the push slot (481).

2. The on-site mixing wastewater treatment system for grouting material pouring construction according to claim 1, characterized in that: The absolute value of the slope of the deflection groove (482) is smaller than the absolute value of the slope of the push groove (481), and the groove group (48) as a whole forms a U-shape with a contracted port, and the middle part of the groove group (48) is in a through-shape, which is used to provide a movable space for the strip plate (46).

3. The on-site mixing wastewater treatment system for grouting material pouring construction according to claim 1 is characterized in that: The bottom of the pushing groove (481) abuts against the strip plate (46), and the strip plate (46) is inclined downward.

4. The on-site mixing wastewater treatment system for grouting material pouring construction according to claim 1 is characterized in that: The top and bottom of the deflection groove (482) are respectively and alternately provided with a plurality of arc-shaped shaking protrusions (484), and the diameter of the limiting rod (47) is smaller than the distance between the top and bottom of the deflection groove (482).

5. The on-site mixing wastewater treatment system for grouting material pouring construction according to claim 1 is characterized in that: When the spring (44) and the torsion spring are in an initial state, the limiting rod (47) is located at the junction of the pushing groove (481) and the reset groove (483).

6. A method for treating on-site mixing wastewater for grouting material pouring construction, using the on-site mixing wastewater treatment system for grouting material pouring construction according to any one of claims 1 to 5, characterized in that: The following steps are involved: The stirred wastewater is initially filtered and intercepted by the pretreatment module (1) to remove the larger gravel and impurities mixed therein; The wastewater from which larger gravel and impurities have been removed is then pumped into the coagulation module (2) through a pipeline and a delivery pump, and a coagulant is added to the wastewater to cause the suspended matter in the wastewater to flocculate; The coagulated wastewater is pumped into the sedimentation module (3). After entering the water inlet tank (33), the wastewater enters the sedimentation tank (31) from the bottom. The heavier flocculated impurities fall directly into the sludge collection tank (32), and the lighter flocculated impurities follow the water flow from bottom to top and enter the inclined plate (35); Impurities are attached to the inclined plate (35). When the impurities are accumulated, the shaking unit (4) is triggered to deflect and shake, causing the impurities attached to the inclined plate (35) to fall off. The precipitated wastewater enters the clean water area (36), enters the outlet weir (37) from the partition (34), and is then discharged.

7. The method for treating on-site mixing wastewater for grouting material pouring construction according to claim 6, characterized in that: As the impurities adhere to the inclined plate (35) accumulate, the impurities accumulate toward the bottom of the inclined plate (35) under the action of their gravity, thereby causing the inclined plate (35) to rotate. When the inclined plate (35) shakes, the impurities fall rapidly under the combined action of their own weight and the shaking.

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