Wastewater treatment device for constructional engineering

Abstract

The invention discloses a wastewater treatment device for constructional engineering, which comprises a box body and a treatment mechanism arranged in the box body and used for treating silt filtered out in a constructional engineering wastewater treatment process, and also comprises a drying mechanism arranged at one end of the box body and used for drying the silt in the constructional engineering wastewater; constructional engineering wastewater is added through a diffusion cover, bricks in the constructional engineering wastewater are filtered through a grating plate, the bricks are prevented from smashing the wastewater treatment device for constructional engineering, a servo motor drives a roller to rotate, under meshing transmission of a toothed belt wheel and a toothed belt, the constructional engineering wastewater is leached out through filtering holes while a conveying belt rotates, and the construction engineering wastewater is filtered out through filtering holes. The scraper blade A is driven by the lifting electric push rod to be tightly attached to the conveying belt, so that the silt adhered to the conveying belt is scraped, the filter screen is prevented from being blocked in the construction engineering wastewater treatment process, and the construction engineering wastewater treatment efficiency is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of construction engineering wastewater treatment, and in particular to a construction engineering wastewater treatment device. Background Art

[0002] Construction wastewater treatment is a systematic project that uses physical, chemical and biological technologies to purify various types of wastewater (such as concrete maintenance wastewater, mechanical cleaning wastewater, domestic sewage, etc.) generated during the construction process. Its core processes include sand removal in sedimentation tanks (removal of particles > 50μm), pH adjustment (control range 6-9), oil-water separation (treatment oil content ≤ 10mg / L) and flocculation sedimentation (SS removal rate ≥ 90%). The treated water quality must meet the first-level standard of the "Comprehensive Sewage Discharge Standard" (GB8978-1996), and key indicators such as COD ≤ 100mg / L, TP ≤ 0.5mg / L. Modern construction sites use modular mobile water treatment devices (treatment capacity 5-50m³ / h), integrated membrane filtration (ultrafiltration accuracy 0.01μm) and electrochemical oxidation technology, which can achieve 80% of the water reuse for dust reduction or maintenance, reducing 30% of fresh water consumption.

[0003] According to the different characteristics of wastewater, the treatment system needs to be customized: concrete alkaline wastewater needs neutralization reaction (adding hydrochloric acid or CO2), heavy metal wastewater uses ion exchange resin (such as lead and chromium removal rate ≥ 99%), and high turbidity mud water is dehydrated by centrifugation (water content drops to below 60%). The intelligent monitoring system links the dosing device through online water quality sensors (monitoring turbidity, ORP and other parameters) to ensure treatment stability. This technology not only meets environmental protection requirements (avoiding administrative penalties of 20,000 to 100,000 yuan per time), but also promotes green construction through resource utilization. For example, a subway project saves 120,000 tons of water annually through the wastewater recycling system and was awarded LEED Gold certification.

[0004] In the prior art, a Chinese invention patent with authorization announcement number CN118598315B discloses a wastewater treatment device for construction engineering, which relates to the field of wastewater treatment technology, including a wastewater treatment tank, a tank cover is arranged on the top of the wastewater treatment tank, and the wastewater treatment device for construction engineering also includes a rotating seat, which is rotatably installed on the top of the tank cover, and a straight tooth one is fixedly installed on the surface of the rotating seat. The present invention can prevent the flocculant from accumulating on the top of the connecting cavity during the falling process by setting the arc cover, and then introduce the wastewater into the wastewater treatment tank through the filter component to mix the wastewater with the flocculant. When the straight tooth two is meshed with the straight tooth one again, the connecting pipe rotates again, so that the two discharge ports are no longer connected. Therefore, the wastewater is continuously stirred by the stirring frame one and the stirring frame two, and the flocculant is intermittently discharged, so that the wastewater can fully contact with the flocculant, and the progress of the mixing of the two is accelerated, thereby ensuring the effect and efficiency of the wastewater treatment, thereby achieving the effect of improving the practicality of the device.

[0005] Compared with the prior art, the following problems exist: some existing wastewater treatment devices for construction projects cannot separate the silt in the construction project wastewater in time during the construction project wastewater treatment process, which makes the filter screen easily blocked during the construction project wastewater treatment process, affecting the efficiency of construction project wastewater treatment.

[0006] Therefore, there is an urgent need for a construction engineering wastewater treatment device. Summary of the invention

[0007] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a wastewater treatment device for construction engineering.

[0008] The present invention solves its technical problem through the following technical scheme: it comprises a box body and a processing mechanism arranged inside the box body, which is used to process the silt filtered out in the process of treating construction wastewater, and also comprises a drying mechanism arranged at one end of the box body, which is used to dry the silt in the construction wastewater, and also comprises a switch mechanism arranged at the other end of the box body, which is used to automatically discharge the stones and mud lumps in the construction wastewater, and also comprises a supporting mechanism arranged outside the box body, which is used to support the construction wastewater treatment device, the processing mechanism comprises a servo motor, the servo motor is fixed to the outer wall of the box body by bolts, the rotating end of the servo motor is fixed with a roller by bolts, the outer side of the roller is connected to a conveyor belt, the middle position of the conveyor belt is evenly provided with a plurality of filter holes, and one end of the box body is connected to the outer wall of the box body by bolts, and the filter hole is evenly arranged at the middle position of the conveyor belt. A receiving bucket is fixed to the end by bolts, a processing box is fixed to one end of the receiving bucket by bolts, a feeding pipe is fixed to one end of the processing box by bolts, a driving motor is fixed to the middle position of the processing box by bolts, a round rod is fixed to the rotating end of the driving motor by bolts, a roller is provided on one side of the round rod, a shovel plate is fixed to the other side of the round rod by bolts, the drying mechanism comprises a hood, the hood is fixed to one end of the box body by bolts, an electric heating plate is fixed to the inside of the hood by bolts, a speed regulating motor is fixed to the middle position of the hood by bolts, a plurality of fan blades are fixed to the rotating end of the speed regulating motor by bolts, a bracket is provided on the outer wall of the hood, a lifting electric push rod is fixed to the outer wall of the bracket by bolts, and a scraper A is fixed to the extended end of the lifting electric push rod by bolts.

[0009] As a further solution of the present invention: a filtering mechanism is arranged above the conveyor belt for filtering rocks and mud clumps in construction wastewater, the filtering mechanism includes a driving motor, the driving motor is fixed to the outside of the box by bolts, a filter screen is fixed to the middle position of the box by bolts, a reciprocating screw is fixed to the rotating end of the driving motor by bolts, the outer side of the reciprocating screw is connected to a driving block, and a scraper B is fixed to the outer wall of the driving block by bolts.

[0010] As a further solution of the present invention: the switch mechanism includes a lower hopper, the lower hopper is welded to one side of the filter, a side arm is fixed above the lower hopper by bolts, a baffle is arranged in the middle of the side arm, and torsion springs are fixed at both ends of the baffle by bolts.

[0011] As a further solution of the present invention: the supporting mechanism includes a support arm, the support arm is welded to the outside of the box, a push rod motor is fixed to the top of the support arm by bolts, a support leg is fixed to one end of the support arm by bolts, a lifting rod is provided on the inner wall of the support leg, and a locking universal wheel is provided at one end of the lifting rod.

[0012] As a further solution of the present invention: a protective shell is fixed to the outer side of the driving motor by bolts.

[0013] As a further solution of the present invention: a grille plate is fixed on the top of the box body by bolts, and a diffusion cover is fixed to the outer wall of the grille plate by bolts.

[0014] As a further solution of the present invention: a downpipe is fixed to the bottom end of the box body by bolts.

[0015] As a further solution of the present invention: a controller is fixed to the outside of the box by bolts, and the controller is electrically connected to the servo motor, drive motor, electric heating plate, speed regulating motor, lifting electric push rod, drive motor, and push rod motor.

[0016] As a further solution of the present invention: a toothed belt wheel is fixed to one end of the roller wheel by bolts, and a toothed belt is connected to the outer side of the toothed belt wheel for transmission.

[0017] As a further solution of the present invention: a protective net is fixed to one end of the wind hood by bolts.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. Add construction wastewater through the diffusion cover to prevent the construction wastewater from splashing. The grille plate filters the bricks in the construction wastewater to prevent the bricks from damaging the construction wastewater treatment device. The servo motor drives the roller to rotate, and the toothed belt wheel and the toothed belt mesh to drive the conveyor belt to rotate. While the conveyor belt rotates, the construction wastewater is drained through the filter holes, so that the sediment in the construction wastewater during the construction wastewater treatment process is separated in time; 2. The lifting electric push rod is provided, which drives the scraper A to be close to the conveyor belt to scrape off the sand adhering to the conveyor belt, thereby preventing the filter from being blocked during the construction wastewater treatment process and ensuring the efficiency of construction wastewater treatment; 3. Heat the air through a hot plate. The speed-regulating motor drives multiple fan blades to rotate, blowing hot air towards the sediment to dry the sediment and prevent the wet sediment from sticking. The push rod motor drives the lifting rod to move up and down along the support legs to adjust the support height of the wastewater treatment device for construction engineering, enabling the wastewater treatment device for construction engineering to meet the use requirements at different ground heights and enriching the functionality of the wastewater treatment device for construction engineering. 4. Filter the stone mud lumps in the construction engineering wastewater through a filter screen. The driving motor drives the reciprocating lead screw to rotate self - sufficiently. The reciprocating lead screw drives the scraper B to move reciprocally through the driving block, removing the stone mud lumps in the construction engineering wastewater above the filter screen to prevent the filter screen from being blocked. By setting a torsion spring, the torsion spring presses and closes the baffle by using elastic force to prevent the construction engineering wastewater from flowing out. At the same time, the stone mud lumps in the construction engineering wastewater will push the baffle to open, realizing the automatic opening or closing of the baffle and improving the automation degree of the wastewater treatment device for construction engineering. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 Shows an isometric structural schematic diagram provided according to an embodiment of the present invention; Figure 2 Shows a side - view structural schematic diagram provided according to an embodiment of the present invention; Figure 3 Shows a rear - view structural schematic diagram provided according to an embodiment of the present invention; Figure 4 Shows a Figure 2 partial enlarged structural schematic diagram at A in the present invention; Figure 5 Shows a front - view sectional structural schematic diagram provided according to an embodiment of the present invention; Figure 6 Shows a Figure 5 partial enlarged structural schematic diagram at B in the present invention; Figure 7 Shows a Figure 5 partial enlarged structural schematic diagram at C in the present invention; Figure 8 Shows a Figure 5 partial enlarged structural schematic diagram at D in the present invention.

[0021] Legend Explanation: 100, box body; 200, protective shell; 300, grille plate; 400, diffuser cover; 500, downpipe; 600, controller; 101, servo motor; 102, roller; 103, conveyor belt; 104, filter hole; 105, receiving hopper; 106, processing box; 107, blanking pipe; 108, drive motor; 109, round rod; 110, grinding roller; 111, shovel plate; 120, toothed belt pulley; 130, toothed belt; 201, wind hood; 202, electric heating plate; 203, speed control motor; 204, fan blade; 205, bracket; 206, lifting electric push rod; 207, scraper A; 210, protective net; 301, drive motor; 302, filter screen; 303, reciprocating lead screw; 304, drive block; 305, scraper B; 401, blanking hopper; 402, side arm; 403, baffle; 404, torsion spring; 501, support arm; 502, push rod motor; 503, support leg; 504, lifting rod; 505, locking universal wheel. Detailed Implementation Manner

[0022] In the following text, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present invention. Therefore, the drawings and the description are considered to be exemplary in nature rather than restrictive.

[0023] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may include direct contact between the first and second features, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and diagonally above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly below and diagonally below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0024] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0025] Embodiment 1: This design mainly aims to improve the timely separation of sediment in construction project wastewater, prevent the filter screen from being easily blocked during the treatment process of construction project wastewater, and ensure the treatment efficiency of construction project wastewater.

[0026] As shown in Figure 1-8As shown, a wastewater treatment device for construction engineering includes a box body 100 and a treatment mechanism arranged inside the box body 100, which is used to treat the sediment filtered out during the construction engineering wastewater treatment process, and also includes a drying mechanism arranged at one end of the box body 100, which is used to dry the sediment in the construction engineering wastewater. The treatment mechanism includes a servo motor 101, and the servo motor 101 is fixed to the outer wall of the box body 100 by bolts. The rotating end of the servo motor 101 is fixed with a roller 102 by bolts, and one end of the roller 102 is fixed with a toothed belt wheel 120 by bolts. The outer side of the toothed belt wheel 120 is connected to the toothed belt 130 for transmission. The toothed belt wheel 120 is meshed with the toothed belt 130 for transmission, driving multiple rollers 102 to rotate simultaneously. The outer side of the roller 102 is connected to the conveyor belt 103, and a plurality of filter holes 104 are evenly cut in the middle of the conveyor belt 103. The filter holes 104 drain the construction wastewater. A receiving bucket 105 is fixed to one end of the box body 100 by bolts. The receiving bucket 105 receives the silt in the construction wastewater. A treatment box 106 is fixed to one end of the receiving bucket 105 by bolts. A feeding pipe 107 is fixed to one end of the treatment box 106 by bolts. A driving motor 108 is fixed to the middle of the treatment box 106 by bolts. A protective shell 200 is fixed to the outer side of the driving motor 108 by bolts. The protective shell 200 seals and protects the driving motor 108 to prevent the driving motor 108 from The rotating end of the driving motor 108 is fixed with a round rod 109 by bolts, and one side of the round rod 109 is rotatably connected with a roller 110. The driving motor 108 drives the roller 110 to rotate through the round rod 109 to crush the adhered mud and sand. The other side of the round rod 109 is fixed with a shovel plate 111 by bolts. The round rod 109 drives the roller 110 to rotate and drives the shovel plate 111 to rotate at the same time. The shovel plate 111 turns over the mud and sand. The top of the box body 100 is fixed with a grille plate 300 by bolts, and the outer wall of the grille plate 300 is fixed with a diffusion cover 400 by bolts. The diffusion cover 400 prevents the waste water from the construction project from splashing. The drying mechanism includes a wind cover 201, which is fixed to the box body by bolts. At one end of the box body 100, an electric heating plate 202 is fixed inside the wind hood 201 by bolts, a protective net 210 is fixed at one end of the wind hood 201 by bolts, and the protective net 210 prevents other objects from entering the wind hood 201, a speed regulating motor 203 is fixed in the middle position of the wind hood 201 by bolts, and a plurality of fan blades 204 are fixed at the rotating end of the speed regulating motor 203 by bolts, a bracket 205 is welded to the outer wall of the wind hood 201, and a lifting electric push rod 206 is fixed to the outer wall of the bracket 205 by bolts, and a scraper A207 is fixed to the extended end of the lifting electric push rod 206 by bolts, and the lifting electric push rod 206 drives the scraper A207 to be close to the conveyor belt 103, and a supporting mechanism is arranged on the outer side of the box body 100,For supporting a wastewater treatment device for construction projects, the support mechanism includes a support arm 501, the support arm 501 is welded to the outside of the box body 100, a push rod motor 502 is fixed above the support arm 501 by bolts, one end of the support arm 501 is fixed with a support leg 503 by bolts, a lifting rod 504 is slidably connected to the inner wall of the support leg 503, the push rod motor 502 drives the lifting rod 504 to lift along the support leg 503, one end of the lifting rod 504 is rotatably connected with a locking universal wheel 505, and the locking universal wheel 505 supports the wastewater treatment device for construction projects and enables the wastewater treatment device for construction projects to move. A sewer pipe 500 is fixed to the bottom end of the box body 100.,

[0027] In this embodiment, construction project wastewater is added through the diffusion hood 400 to prevent the construction project wastewater from splashing. The grille plate 300 filters bricks in the construction project wastewater to prevent the bricks from damaging the wastewater treatment device for construction projects. The servo motor 101 drives the roller 102 to rotate. Under the meshing transmission of the toothed belt wheel 120 and the toothed belt 130, the conveyor belt 103 is driven to rotate. While the conveyor belt 103 rotates, the construction project wastewater is drained through the filter holes 104, so as to separate the sediment in the construction project wastewater in time during the treatment process of the construction project wastewater. By providing a lifting electric push rod 206, the lifting electric push rod 206 drives the scraper A 207 to closely adhere to the conveyor belt 103 to scrape off the sediment adhered to the conveyor belt 103, preventing the filter screen 302 from being blocked during the treatment process of the construction project wastewater and ensuring the treatment efficiency of the construction project wastewater; through the electric heating plate 202, the air is heated, the speed regulating motor 203 drives a plurality of fan blades 204 to rotate, accelerating the flow of hot air. The conveyor belt 103 drives the sediment to leave from one end of the conveyor belt 103, and the hot air blows towards the sediment in the horizontal direction of the conveyor belt 103 to dry the sediment, preventing the wet sediment from sticking. The push rod motor 502 drives the lifting rod 504 to lift along the support leg 503 to adjust the support height of the wastewater treatment device for construction projects, so that the wastewater treatment device for construction projects can meet the use requirements of different ground heights, enriching the functionality of the wastewater treatment device for construction projects.

[0028] When this embodiment is in use, first, construction engineering wastewater is added through the diffusion hood 400. Under the action of gravity, the construction engineering wastewater flows through the grid plate 300, and the grid plate 300 filters the bricks in the construction engineering wastewater. Subsequently, the construction engineering wastewater flows through the conveyor belt 103. The servo motor 101 is started. The servo motor 101 is in meshing transmission with the toothed belt 130 through the toothed belt pulley 120, driving the conveyor belt 103 to rotate. The filter holes 104 drain the construction engineering wastewater, separating the sediment in the construction engineering wastewater in a timely manner during the treatment process of the construction engineering wastewater. Then, the lifting electric push rod 206 drives the scraper A 207 to closely adhere to the conveyor belt 103 to scrape off the sediment adhered to the conveyor belt 103. Next, the receiving hopper 105 receives the sediment in the construction engineering wastewater. The electric heating plate 202 heats the air. The speed regulating motor 203 drives a plurality of fan blades 204 to rotate, blowing hot air towards the sediment to dry the sediment.

[0029] Embodiment 2: As Figure 1-8 shown, a wastewater treatment device for construction engineering, a filtering mechanism is arranged above the conveyor belt 103 for filtering stone clods in the construction engineering wastewater. The filtering mechanism includes a driving motor 301, and the driving motor 301 is fixed to the outside of the box body 100 by bolts. A filter screen 302 is fixed to the middle position of the box body 100 by bolts, and the filter screen 302 filters the stone clods in the construction engineering wastewater. The rotating end of the driving motor 301 is fixed with a reciprocating lead screw 303 by bolts. A driving block 304 is in transmission connection with the outside of the reciprocating lead screw 303. The reciprocating lead screw 303 drives the driving block 304 to reciprocate. A scraper B 305 is fixed to the outer wall of the driving block 304 by bolts. The driving block 304 drives the scraper B 305 to reciprocate to remove the stone clods in the construction engineering wastewater above the filter screen 302. One end of the box body 100 is provided with a switching mechanism for automatically discharging the stone clods in the construction engineering wastewater. The switching mechanism includes a feeding hopper 401, and the feeding hopper 401 is welded to one side of the filter screen 302. A side arm 402 is fixed above the feeding hopper 401 by bolts. A baffle 403 is rotatably connected to the middle position of the side arm 402. The grid plate 300 filters out the stone clods in the construction engineering wastewater to prevent the stone clods from affecting the baffle 403. The baffle 403 blocks the feeding port to prevent the construction engineering wastewater from flowing out. Torsion springs 404 are fixed to both ends of the baffle 403 by bolts. The torsion springs 404 press the baffle 403 by using elastic force. The stone clods in the construction engineering wastewater will push the baffle 403 to open. A controller 600 is fixed to the outside of the box body 100 by bolts. The controller 600 is electrically connected to the servo motor 101, the driving motor 108, the electric heating plate 202, the speed regulating motor 203, the lifting electric push rod 206, the driving motor 108, and the push rod motor 502.

[0030] In this embodiment, the stones and mud lumps in the construction wastewater are filtered by the filter screen 302. The driving motor 301 drives the reciprocating lead screw 303 to rotate. The reciprocating lead screw 303 drives the scraper B 305 to reciprocate through the driving block 304, so as to remove the stones and mud lumps in the construction wastewater above the filter screen 302, preventing the filter screen 302 from being blocked. By setting the torsion spring 404, the torsion spring 404 presses and closes the baffle 403 by using the elastic force, preventing the construction wastewater from flowing out. At the same time, the stones and mud lumps in the construction wastewater will push the baffle 403 to open, realizing the automatic opening or closing of the baffle 403, and improving the automation degree of the wastewater treatment device for construction engineering.

[0031] When this embodiment is in use, the filter screen 302 filters the stones and mud lumps in the construction wastewater. The torsion spring 404 presses and closes the baffle 403 by using the elastic force, preventing the construction wastewater from flowing out. The driving motor 301 drives the reciprocating lead screw 303 to rotate. The reciprocating lead screw 303 drives the scraper B 305 to reciprocate through the driving block 304, so as to remove the stones and mud lumps in the construction wastewater above the filter screen 302. The stones and mud lumps in the construction wastewater will push the baffle 403 to open, realizing the automatic opening and blanking of the baffle 403.

[0032] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A wastewater treatment device for construction engineering, characterized in that, It comprises a box body (100) and a processing mechanism arranged inside the box body (100), and is used to process the sediment filtered out during the construction engineering wastewater treatment process. It also includes a drying mechanism disposed at one end of the box (100) for drying the sediment in the construction wastewater. It also includes a switch mechanism arranged at the other end of the box body (100) for automatically unloading rocks and mud lumps in the construction wastewater. It also includes a supporting mechanism arranged outside the box (100) and used to support the construction engineering wastewater treatment device. The processing mechanism comprises a servo motor (101), the servo motor (101) being fixed to the outer wall of the box body (100) by means of bolts, a roller (102) being fixed to the rotating end of the servo motor (101) by means of bolts, a conveyor belt (103) being transmission-connected to the outer side of the roller wheel (102), a plurality of filter holes (104) being evenly arranged at the middle position of the conveyor belt (103), a receiving bucket (105) being fixed to one end of the box body (100) by means of bolts, the receiving bucket A processing box (106) is fixed to one end of the processing box (105) by bolts, a feeding pipe (107) is fixed to one end of the processing box (106) by bolts, a driving motor (108) is fixed to the middle position of the processing box (106) by bolts, a round rod (109) is fixed to the rotating end of the driving motor (108) by bolts, a roller (110) is provided on one side of the round rod (109), and a shovel plate (111) is fixed to the other side of the round rod (109) by bolts. The drying mechanism comprises an air hood (201), wherein the air hood (201) is fixed to one end of a housing (100) by means of bolts, an electric heating plate (202) is fixed inside the air hood (201) by means of bolts, a speed regulating motor (203) is fixed at a middle position of the air hood (201) by means of bolts, a plurality of fan blades (204) are fixed to a rotating end of the speed regulating motor (203) by means of bolts, a bracket (205) is provided on an outer wall of the air hood (201), a lifting electric push rod (206) is fixed to an outer wall of the bracket (205) by means of bolts, and a scraper A (207) is fixed to an extended end of the lifting electric push rod (206) by means of bolts.

2. The wastewater treatment device for construction engineering according to claim 1, characterized in that, A filtering mechanism is provided above the conveyor belt (103) for filtering rocks and mud lumps in the construction wastewater. The filtering mechanism comprises a driving motor (301), the driving motor (301) being fixed to the outside of a box body (100) by means of bolts, a filter screen (302) being fixed to the middle position of the box body (100) by means of bolts, a reciprocating screw (303) being fixed to the rotating end of the driving motor (301) by means of bolts, a driving block (304) being transmission-connected to the outside of the reciprocating screw (303), and a scraper B (305) being fixed to the outer wall of the driving block (304) by means of bolts.

3. An industrial wastewater treatment device according to claim 2, wherein, The switch mechanism comprises a lower hopper (401), the lower hopper (401) being welded to one side of the filter screen (302), a side arm (402) being fixed above the lower hopper (401) by means of bolts, a baffle (403) being provided in the middle of the side arm (402), and torsion springs (404) being fixed at both ends of the baffle (403) by means of bolts.

4. The wastewater treatment device for construction engineering according to claim 3, wherein, The support mechanism comprises a support arm (501), the support arm (501) is welded to the outside of the box body (100), a push rod motor (502) is fixed to the top of the support arm (501) by means of bolts, a support leg (503) is fixed to one end of the support arm (501) by means of bolts, a lifting rod (504) is provided on the inner wall of the support leg (503), and a locking universal wheel (505) is provided at one end of the lifting rod (504).

5. A wastewater treatment device for construction engineering according to claim 1, characterized in that, A protective shell (200) is fixed to the outer side of the driving motor (108) by means of bolts.

6. The wastewater treatment device for construction engineering according to claim 1, characterized in that, A grille plate (300) is fixed on the top of the box body (100) by means of bolts, and a diffusion cover (400) is fixed on the outer wall of the grille plate (300) by means of bolts.

7. An industrial wastewater treatment device according to claim 1, characterized in that, A downpipe (500) is fixed to the bottom end of the box body (100) via bolts.

8. An industrial wastewater treatment device for construction engineering according to claim 4, characterized in that, A controller (600) is fixed to the outside of the box (100) by means of bolts, and the controller (600) is electrically connected to the servo motor (101), the drive motor (108), the electric heating plate (202), the speed regulating motor (203), the lifting electric push rod (206), the drive motor (108), and the push rod motor (502).

9. An industrial wastewater treatment device according to claim 1, characterized in that, A toothed belt wheel (120) is fixed to one end of the roller wheel (102) via bolts, and a toothed belt (130) is transmission-connected to the outer side of the toothed belt wheel (120).

10. A wastewater treatment device for construction engineering according to claim 1, characterized in that, A protective net (210) is fixed to one end of the wind shield (201) via bolts.

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