Sand filtering sewage treatment device and treatment method for constructional engineering

Abstract

The invention discloses a sand filtering sewage treatment device for constructional engineering and a treatment method, and relates to the technical field of sand filtering sewage treatment.The sand filtering sewage treatment device comprises a tank body, a drainage pipe is arranged in the middle of the bottom face of the tank body, a round hole cylinder is fixed to the bottom of the inner wall of the tank body, a plurality of drainage holes are formed in the bottom face of the round hole cylinder, and quartz sand is contained in the round hole cylinder; the tank cover is fixedly installed on the top face of the tank body, a water inlet pipe is arranged on the outer wall of the tank cover, a hole pipe is arranged in the middle of the top face of the tank body, a motor and the round rod are installed on the top face of the hole pipe, the top face of the round rod is fixedly connected with the bottom face of a rotating shaft of the motor, and a ring block is fixed to the outer wall of the round rod. Sewage is uniformly sprayed to the surface of quartz sand in the rotating process of the inclined pipe, so that the problem that the sewage filtering and purifying effect of the quartz sand is poor due to the fact that the sewage intensively washes the surface of the quartz sand is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of sand filter sewage treatment, in particular to a sand filter sewage treatment device and a treatment method for construction engineering. Background Art

[0002] The sand filter sewage treatment device used in construction projects is a water treatment equipment, which is mainly used to treat wastewater containing a lot of mud, sand and suspended matter generated during the construction process of construction projects. Through the purification of the sewage treatment device, the suspended matter, mud and sand in the sewage are removed, so that the wastewater meets the discharge or reuse standards.

[0003] Patent No. CN208829405U discloses a sand filter tank, including a tank body, an upper head, a lower head, and a filter layer arranged inside the tank body. The lower outer wall of the tank body is provided with a water inlet, and the upper head is provided with a water outlet. The filter layer includes a pebble cushion layer, a quartz sand filter material layer, and anthracite filter material layer arranged in sequence from bottom to top. The patent has the following advantages and effects: due to the gravity of the filter layer itself, the filter layer automatically forms a sparse upper and dense lower state. Therefore, when the sewage flows from bottom to top, the filter layer can adsorb impurities, thereby improving the filtration degree of the sewage, and the impurities will move downward under the action of their own gravity, thereby reducing the impurity content in the treated sewage, improving the cleanliness of the treated sewage, achieving the effect of improving the filtration degree of sewage, reducing sewage pollution, and thus achieving an environmental protection effect.

[0004] However, the current sand filter tank has the following problems: when construction projects are purifying sewage, the sewage is concentratedly flushed above the filter sand of the sewage treatment device, and the filter sand is only partially filtering and purifying the sewage, which leads to the problem that the filter sand is not effective in filtering and purifying sewage. Therefore, we propose a sand filter sewage treatment device and treatment method for construction projects. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides a sand filter sewage treatment device and a treatment method for construction engineering, which solves the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a sand filter sewage treatment device for construction engineering, comprising: a tank body, a drainage pipe is provided in the middle of the bottom surface of the tank body, a circular hole cylinder is fixed to the bottom of the inner wall of the tank body, a plurality of drainage holes are provided on the bottom surface of the circular hole cylinder, quartz sand is filled inside the circular hole cylinder, a tank cover, the tank cover is fixedly mounted on the top surface of the tank body, a water inlet pipe is provided on the outer wall of the tank cover, a hole tube is provided in the middle of the top surface of the tank body, a motor is installed on the top surface of the hole tube, the round rod, the top surface of the round rod is fixedly connected to the bottom surface of the rotating shaft of the motor, a ring block is fixed on the outer wall of the round rod, and the outer wall of the ring block is fixed There are several inclined rods, and the inner walls of the inclined rods are respectively fixed with a triangular plate, the outer walls of the triangular plates are in sliding contact with the inner wall of the tank cover, and the triangular plates are used to scrape off stains attached to the inner wall of the tank cover, a concave ring, which is fixed to the top of the inner wall of the tank body, and a disc, which is fixed to the bottom surface of the round rod, and the outer wall of the disc is rotatably connected to the inner wall of the concave ring. A number of inclined tubes are provided on the bottom surface of the disc, and the disc rotates in the concave ring. The disc rotates forward with the inclined tube, and the sewage flowing downward will contact the surface of the disc. The sewage flows into the inclined tube, so that the inclined tube will evenly sprinkle the sewage on the surface of the quartz sand during the rotation process. The inclined tube is used to divert the sewage to the top of the quartz sand.

[0007] According to the above technical solution, three supporting legs are fixed to the bottom of the outer wall of the tank body, and the supporting legs are used to support the entire device. A console is fixedly installed in the middle of the front of the tank body, and the console is used to start the motor.

[0008] According to the above technical solution, the bottom end of the tank body is set to be arc-shaped, and the top surface of the ring block is provided with several through grooves to reduce the weight of the ring block. The top of the outer wall of the triangular plate is respectively provided with chamfers, and the inclined tubes on the disc are arranged clockwise.

[0009] According to the above technical solution, the ring block is located above the disc, the inclined rod is inclined upward on the ring block, and the disc is located above the circular hole cylinder.

[0010] According to the above technical solution, a filter device is provided in the middle of the bottom surface of the disc, and the filter device is used to prevent large particles of impurities from entering the quartz sand. A stirring device is provided at the bottom of the side where the filter devices are close to each other, and the stirring device is used to stir the top surface of the quartz sand.

[0011] According to the above technical solution, the filtering device includes: a vertical rod, which is fixed in the middle of the bottom surface of the disc, a circular plate is fixed on the bottom surface of the vertical rod, and a plurality of L-shaped frames are fixed on the top surface of the circular plate, and a ring, which is fixed on the bottom surface of the L-shaped frame. A filter screen is installed between the inner wall of the ring and the outer wall of the circular plate. The circular plate drives the L-shaped frame to rotate forward, the L-shaped frame drives the ring to rotate forward, and the ring drives the filter screen to rotate forward. The filter screen is used to block large particles of impurities.

[0012] According to the above technical solution, a number of vertical concave shells are embedded in the outer wall of the ring, and a number of springs are fixed to the inner walls of the vertical concave shells. A T-shaped chamfered plate is fixed to the end of the spring away from the vertical concave shell. The T-shaped chamfered plate is located inside the vertical concave shell. The vertical concave shell drives the spring to rotate forward, and the spring drives the T-shaped chamfered plate to rotate forward. Under the action of the compression elastic force of the spring, the T-shaped chamfered plate rotates against the wall of the tank body, and the outer wall of the T-shaped chamfered plate is in sliding contact with the inner wall of the tank body.

[0013] According to the above technical solution, the stirring device includes: short columns, which are respectively fixed on the bottom of the side where the vertical concave shells are close to each other, and a ring frame is fixed on one end of the short columns close to each other, and a T-shaped rod, which is fixed on the inner wall of the ring frame, and a tooth plate is fixed on the bottom surface of the T-shaped rod. The ring frame drives the T-shaped rod to rotate forward, and the T-shaped rod drives the tooth plate to rotate forward, and the tooth plate is used to stir the top surface of the quartz sand.

[0014] According to the above technical solution, two ring frames are fixed to the outer wall of the T-shaped rod, a thin rod is fixed to the top surface of the ring frame, a magnetic ring is fixed to one end of the thin rod away from each other, the ring frame drives the thin rod to rotate forward, and the thin rod drives the magnetic ring to rotate forward, and the magnetic ring is used to adsorb metal particles in sewage.

[0015] A treatment method for a sand filter sewage treatment device for construction engineering, comprising the following steps: S1. Construction workers install the sewage pipe above the water inlet pipe, and the sewage enters the tank through the water inlet pipe; S2, the round rod drives the ring block to rotate forward, the ring block drives the inclined rod to rotate forward, and the inclined rod drives the triangular plate to rotate forward; S3, the round rod drives the disc to rotate forward, the disc rotates in the concave ring, the disc drives the inclined pipe to rotate forward, and the sewage flows into the inclined pipe; S4, the ring drives the filter to rotate forward. During the rotation, the filter filters out large particles of impurities in the sewage; S5. The vertical concave shell drives the spring to rotate forward, and the spring drives the T-shaped chamfered plate to rotate forward. Under the compression force of the spring, the T-shaped chamfered plate rotates against the wall of the tank; S6. The ring frame drives the T-shaped rod to rotate forward, and the T-shaped rod drives the tooth plate to rotate forward, and the tooth plate stirs the surface of the quartz sand; S7, the ring frame drives the thin rod to rotate forward, and the thin rod drives the magnetic ring to rotate forward; S8. The purified sewage flows downward from the drainage hole of the circular hole cylinder, and the purified sewage flows out of the drainage pipe for recycling.

[0016] The present invention provides a sand filter sewage treatment device for construction engineering, which has the following beneficial effects: (1) The present invention comprises a tank body, a drain pipe, a circular hole cylinder, quartz sand, a tank cover, a water inlet pipe, a hole tube, a round rod, a ring block, an inclined rod, a triangular plate, a concave ring and a disc in combination with an inclined tube. The disc rotates in the concave ring, and the disc rotates forward with the inclined tube. The sewage flows downward and contacts the surface of the disc, and the sewage flows into the inclined tube, so that the inclined tube evenly sprinkles the sewage onto the surface of the quartz sand during the rotation process. The quartz sand in the circular hole cylinder purifies and filters the sewage, and prevents the sewage from concentratedly washing the surface of the quartz sand, resulting in poor sewage filtration and purification effect of the quartz sand.

[0017] (2) The present invention arranges the filter device so that the vertical rod, circular plate, L-shaped frame plate and ring cooperate with the filter screen. The circular plate drives the L-shaped frame plate to rotate forward, the L-shaped frame plate drives the ring to rotate forward, and the ring drives the filter screen to rotate forward. During the rotation of the filter screen, the filter screen filters large particles of impurities in the sewage, preventing the large particles of impurities from blocking the gaps in the quartz sand and causing poor quartz sand filtering effect.

[0018] (3) The present invention arranges the filter device so that the vertical concave shell and the spring cooperate with the T-shaped chamfered plate. The vertical concave shell drives the spring to rotate forward, and the spring drives the T-shaped chamfered plate to rotate forward. Under the action of the compression elastic force of the spring, the T-shaped chamfered plate rotates against the wall of the tank body, preventing dirt from adhering to the wall of the tank body and causing the tank body to be easily aged and damaged.

[0019] (4) The present invention sets up a stirring device so that the short column, the ring frame and the T-shaped rod cooperate with the tooth plate. The ring frame drives the T-shaped rod to rotate forward, and the T-shaped rod drives the tooth plate to rotate forward. The tooth plate stirs the surface of the quartz sand to prevent impurities in the sewage from covering the surface of the quartz sand and causing poor liquid circulation effect of the quartz sand.

[0020] (5) The present invention sets a stirring device so that the ring frame and the thin rod cooperate with the magnetic ring. The ring frame drives the thin rod to rotate forward, and the thin rod drives the magnetic ring to rotate forward. During the rotation process, the magnetic ring absorbs metal particles in the sewage, preventing the sewage from containing metal particles, which makes it difficult for the quartz sand to purify the metal particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the present invention as a whole; Figure 2 is a schematic diagram of the internal components of the present invention; Figure 3 It is a cross-sectional schematic diagram of the tank body of the present invention; Figure 4 It is a schematic bottom view of a cross-section of the tank body of the present invention; Figure 5 Schematic diagram of the filtration device of the present invention; Figure 6 For the present invention Figure 5 A partial enlarged schematic diagram of point A in the middle; Figure 7 is a schematic diagram of the stirring device of the present invention; Figure 8 For the present invention Figure 7 A partial enlarged schematic diagram of point B in the middle.

[0022] In the figure: 1. tank body; 101. support leg; 102. control console; 2. drain pipe; 3. round hole cylinder; 4. quartz sand; 5. tank cover; 6. water inlet pipe; 7. hole tube; 8. round rod; 9. ring block; 10. oblique rod; 11. triangular plate; 12. concave ring; 13. disc; 14. oblique tube; 15. filter device; 151. vertical rod; 152. circular plate; 153. L-shaped frame plate; 154. ring; 155. filter screen; 156. vertical concave shell; 157. spring; 158. T-shaped chamfered plate; 16. stirring device; 161. short column; 162. ring frame; 163. T-shaped rod; 164. tooth plate; 165. ring straight frame; 166. thin rod; 167. magnetic ring. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0024] See also Figures 1-8 One embodiment of the present invention is a sand filter sewage treatment device for construction engineering, comprising: a tank body 1, the bottom end of the inner portion of the tank body 1 being configured in an arc shape, three support legs 101 being fixed to the bottom of the outer wall of the tank body 1, the support legs 101 being used to support the entire device, a console 102 being fixedly mounted in the middle of the front of the tank body 1, the console 102 being used to start the motor; A drainage pipe 2 is provided in the middle of the bottom surface of the tank body 1, a circular hole cylinder 3 is fixed to the bottom of the inner wall of the tank body 1, a plurality of drainage holes are provided on the bottom surface of the circular hole cylinder 3, quartz sand 4 is filled in the circular hole cylinder 3, a tank cover 5, the tank cover 5 is fixedly mounted on the top surface of the tank body 1, a water inlet pipe 6 is provided on the outer wall of the tank cover 5, a hole tube 7 is provided in the middle of the top surface of the tank body 1, a motor is installed on the top surface of the hole tube 7, a round rod 8, the top surface of the round rod 8 is fixedly connected to the bottom surface of the rotating shaft of the motor, a ring block 9 is fixed on the outer wall of the round rod 8, a plurality of through grooves are provided on the top surface of the ring block 9 to reduce the weight of the ring block 9, a plurality of inclined rods 10 are fixed on the outer wall of the ring block 9, the inclined rod 10 is inclined upward on the ring block 9, and the inclined rod 10 is inclined upward on the ring block 9. The inner wall of each of the tank body 1 is fixed with a triangular plate 11, and the top of the outer wall of the triangular plate 11 is respectively provided with a chamfer. The outer wall of the triangular plate 11 is in sliding contact with the inner wall of the tank cover 5, and the triangular plate 11 is used to scrape off the stains attached to the inner wall of the tank cover 5. The concave ring 12 is fixed to the top of the inner wall of the tank body 1, and the disc 13 is fixed to the bottom surface of the round rod 8. The disc 13 is located above the circular hole cylinder 3, and the ring block 9 is located above the disc 13. The outer wall of the disc 13 is rotatably connected to the inner wall of the concave ring 12. A number of inclined tubes 14 are provided on the bottom surface of the disc 13. The inclined tubes 14 on the disc 13 are arranged clockwise, and the inclined tubes 14 are used to divert sewage to the top of the quartz sand 4; When using this equipment, the support legs 101 support the tank body 1, the construction workers install the sewage pipe above the water inlet pipe 6, the sewage enters the tank body 1 through the water inlet pipe 6, the construction workers start the motor on the hole pipe 7 through the console 102, the tank cover 5 supports the hole pipe 7, the motor shaft starts to rotate forward, the motor shaft drives the round rod 8 to rotate forward, the round rod 8 rotates forward in the hole pipe 7, the round rod 8 drives the ring block 9 to rotate forward, the ring block 9 drives the inclined rod 10 to rotate forward, the inclined rod 10 drives the triangular plate 11 to rotate forward, the triangular plate 11 scrapes off the stains attached to the tank cover 5 during the rotation, and at the same time, the round rod 8 drives the disc 13 to rotate forward, and the disc 13 rotates in the concave The ring 12 rotates, and the disc 13 with the inclined tube 14 rotates forward. The sewage flows downward and contacts the surface of the disc 13. The sewage flows into the inclined tube 14, so that the inclined tube 14 evenly sprinkles the sewage onto the surface of the quartz sand 4 during the rotation process. The quartz sand 4 in the circular hole cylinder 3 purifies and filters the sewage, and the sewage does not concentrate on the surface of the quartz sand 4, thereby avoiding the problem that the sewage concentrates on the surface of the quartz sand 4 during the treatment of construction sewage by the filter sand sewage treatment device, resulting in poor sewage filtration and purification effect of the quartz sand 4. The purified sewage flows downward from the drainage hole of the circular hole cylinder 3, and the purified sewage flows out of the drainage pipe 2 for recycling. A filter device 15 is provided in the middle of the bottom surface of the disc 13, and the filter device 15 is used to prevent large particles of impurities from entering the quartz sand 4. A stirring device 16 is provided at the bottom of the side close to the filter devices 15, and the stirring device 16 is used to stir the top surface of the quartz sand 4.

[0025] Working principle: Install the sewage pipe above the water inlet pipe 6, and the sewage enters the tank body 1 through the water inlet pipe 6. The rotating shaft of the motor on the hole tube 7 drives the round rod 8 to rotate forward, and the round rod 8 rotates forward in the hole tube 7. The round rod 8 drives the ring block 9 to rotate forward, and the ring block 9 drives the inclined rod 10 to rotate forward. The inclined rod 10 drives the triangular plate 11 to rotate forward, and the round rod 8 drives the disc 13 to rotate forward. The disc 13 rotates in the concave ring 12, and the disc 13 rotates forward with the inclined tube 14. The sewage flows downward and contacts the surface of the disc 13. The sewage flows into the inclined tube 14. During the rotation process, the inclined tube 14 evenly sprinkles the sewage onto the surface of the quartz sand 4. The quartz sand 4 in the circular hole cylinder 3 purifies and filters the sewage. The purified sewage flows downward from the drainage hole of the circular hole cylinder 3, and the purified sewage flows out of the drainage pipe 2 for recycling.

[0026] See also Figures 1-8 In another embodiment of the present invention, based on the above embodiment, the filter device 15 includes: a vertical rod 151, the vertical rod 151 is fixed in the middle of the bottom surface of the disc 13, a circular plate 152 is fixed to the bottom surface of the vertical rod 151, a plurality of L-shaped frame plates 153 are fixed to the top surface of the circular plate 152, and a ring 154 is fixed to the bottom surface of the L-shaped frame plate 153. A filter screen 155 is installed between the inner wall of the ring 154 and the outer wall of the circular plate 152. The filter screen 155 is used to block large particles of impurities; While the round rod 8 drives the disc 13 to rotate forward, the disc 13 drives the vertical rod 151 to rotate forward, the vertical rod 151 drives the circular plate 152 to rotate forward, the circular plate 152 drives the L-shaped frame plate 153 to rotate forward, the L-shaped frame plate 153 drives the ring 154 to rotate forward, and the ring 154 drives the filter screen 155 to rotate forward. During the rotation of the filter screen 155, the filter screen 155 filters large particles of impurities in the sewage, so that the large particles of impurities will not block the gaps in the quartz sand 4, thereby avoiding the problem of large particles of impurities blocking the gaps in the quartz sand 4 and causing poor filtering effect of the quartz sand 4 during the process of treating construction sewage in the filter sand sewage treatment device.

[0027] The outer wall of the ring 154 is embedded with a plurality of vertical concave shells 156. The inner walls of the vertical concave shells 156 are fixed with a plurality of springs 157. The ends of the springs 157 away from the vertical concave shells 156 are fixed with T-shaped chamfered plates 158. The T-shaped chamfered plates 158 are located inside the vertical concave shells 156. The outer walls of the T-shaped chamfered plates 158 are in sliding contact with the inner wall of the tank body 1. While the L-shaped frame 153 drives the ring 154 to rotate forward, the ring 154 drives the vertical concave shell 156 to rotate forward, the vertical concave shell 156 drives the spring 157 to rotate forward, and the spring 157 drives the T-shaped chamfered plate 158 to rotate forward. Under the compression force of the spring 157, the T-shaped chamfered plate 158 rotates against the wall of the tank body 1, allowing the T-shaped chamfered plate 158 to rotate and scrape off the dirt on the wall of the tank body 1, thereby avoiding the problem of dirt adhering to the wall of the tank body 1 during the process of treating construction wastewater in the sand filter sewage treatment device, causing the tank body 1 to be easily aged and damaged.

[0028] The stirring device 16 includes short columns 161, which are respectively fixed to the bottom of the adjacent sides of the vertical concave shells 156. A ring frame 162 and a T-shaped rod 163 are fixed to the adjacent ends of the short columns 161. The T-shaped rod 163 is fixed to the inner wall of the ring frame 162. The bottom surface of the T-shaped rod 163 is fixed to a tooth plate 164, which is used to stir the top surface of the quartz sand 4. While the ring 154 drives the vertical concave shell 156 to rotate forward, the vertical concave shell 156 drives the short column 161 to rotate forward, the short column 161 drives the ring frame 162 to rotate forward, the ring frame 162 drives the T-shaped rod 163 to rotate forward, and the T-shaped rod 163 drives the tooth plate 164 to rotate forward. During the rotation of the tooth plate 164, the tooth plate 164 stirs the surface of the quartz sand 4, thereby avoiding the problem that impurities in the sewage are covered on the surface of the quartz sand 4 during the process of treating construction sewage in the filter sand sewage treatment device, resulting in poor liquid circulation effect of the quartz sand 4.

[0029] Two ring frames 165 are fixed to the outer wall of the T-shaped rod 163. A thin rod 166 is fixed to the top surface of the ring frame 165. A magnetic ring 167 is fixed to one end of the thin rod 166 away from each other. The magnetic ring 167 is used to absorb metal particles in the sewage. While the ring frame 162 drives the T-shaped rod 163 to rotate forward, the T-shaped rod 163 drives the ring straight frame 165 to rotate forward, the ring straight frame 165 drives the thin rod 166 to rotate forward, and the thin rod 166 drives the magnetic ring 167 to rotate forward. The magnetic ring 167 absorbs metal particles in the sewage during the rotation process, thereby avoiding the problem that the quartz sand 4 is difficult to purify the metal particles due to the metal particles contained in the sewage during the sand filter sewage treatment device treating the construction project sewage.

[0030] A treatment method for a sand filter sewage treatment device for construction engineering, comprising the following steps: S1. Construction workers install the sewage pipe above the water inlet pipe 6, and the sewage enters the tank body 1 through the water inlet pipe 6; S2, the round rod 8 drives the ring block 9 to rotate forward, the ring block 9 drives the inclined rod 10 to rotate forward, and the inclined rod 10 drives the triangular plate 11 to rotate forward; S3, the round rod 8 drives the disc 13 to rotate forward, the disc 13 rotates in the concave ring 12, the disc 13 drives the inclined pipe 14 to rotate forward, and the sewage flows into the inclined pipe 14; S4, the ring 154 drives the filter 155 to rotate forward. During the rotation of the filter 155, the filter 155 filters the large particles of impurities in the sewage; S5. The vertical concave shell 156 drives the spring 157 to rotate forward, and the spring 157 drives the T-shaped chamfered plate 158 to rotate forward. Under the compression force of the spring 157, the T-shaped chamfered plate 158 rotates against the wall of the tank body 1; S6. The ring frame 162 drives the T-shaped rod 163 to rotate forward, and the T-shaped rod 163 drives the tooth plate 164 to rotate forward, and the tooth plate 164 stirs the surface of the quartz sand 4; S7, the ring frame 165 drives the thin rod 166 to rotate forward, and the thin rod 166 drives the magnetic ring 167 to rotate forward; S8. The purified sewage flows downward from the drainage hole of the circular hole cylinder 3, and the purified sewage flows out of the drainage pipe 2 for recycling.

[0031] Working principle: The disc 13 drives the vertical rod 151 to rotate forward, the vertical rod 151 drives the circular plate 152 to rotate forward, the circular plate 152 drives the L-shaped frame 153 to rotate forward, the L-shaped frame 153 drives the ring 154 to rotate forward, the ring 154 drives the filter screen 155 to rotate forward, and during the rotation process, the filter screen 155 filters out large particles of impurities in the sewage; The ring 154 drives the vertical concave shell 156 to rotate forward, the vertical concave shell 156 drives the spring 157 to rotate forward, and the spring 157 drives the T-shaped chamfered plate 158 to rotate forward. Under the compression force of the spring 157, the T-shaped chamfered plate 158 rotates against the wall of the tank body 1; The vertical concave shell 156 drives the short column 161 to rotate forward, the short column 161 drives the ring frame 162 to rotate forward, the ring frame 162 drives the T-shaped rod 163 to rotate forward, and the T-shaped rod 163 drives the tooth plate 164 to rotate forward. During the rotation process, the tooth plate 164 stirs the surface of the quartz sand 4; The T-shaped rod 163 drives the ring frame 165 to rotate forward, the ring frame 165 drives the thin rod 166 to rotate forward, and the thin rod 166 drives the magnetic ring 167 to rotate forward. The magnetic ring 167 absorbs metal particles in the sewage during the rotation process.

[0032] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A sand filter sewage treatment device for construction engineering, comprising: A tank body (1), wherein a drainage pipe (2) is provided in the middle of the bottom surface of the tank body (1), a circular hole cylinder (3) is fixed to the bottom of the inner wall of the tank body (1), a plurality of drainage holes are provided on the bottom surface of the circular hole cylinder (3), and quartz sand (4) is filled inside the circular hole cylinder (3); A tank cover (5), the tank cover (5) is fixedly mounted on the top surface of the tank body (1), a water inlet pipe (6) is provided on the outer wall of the tank cover (5), a hole pipe (7) is provided in the middle of the top surface of the tank body (1), and a motor is mounted on the top surface of the hole pipe (7); The round rod (8) is fixedly connected to the bottom surface of the rotating shaft of the motor on its top surface. A ring block (9) is fixed to the outer wall of the round rod (8). A plurality of inclined rods (10) are fixed to the outer wall of the ring block (9). A triangular plate (11) is fixed to the inner wall of each inclined rod (10). The outer wall of the triangular plate (11) is in sliding contact with the inner wall of the tank cover (5). The triangular plate (11) is used to scrape off dirt attached to the inner wall of the tank cover (5). A concave ring (12), the concave ring (12) being fixed to the top of the inner wall of the tank body (1); A disc (13) is fixed on the bottom surface of the round rod (8), the outer wall of the disc (13) is rotatably connected to the inner wall of the concave ring (12), and a plurality of inclined pipes (14) are opened on the bottom surface of the disc (13), and the inclined pipes (14) are used to divert sewage to the top of the quartz sand (4).

2. A sand filter sewage treatment device for construction engineering according to claim 1, characterized in that: Three supporting legs (101) are fixed to the bottom of the outer wall of the tank body (1), and the supporting legs (101) are used to support the entire device. A control console (102) is fixedly installed in the middle of the front of the tank body (1), and the control console (102) is used to start the motor.

3. A sand filter sewage treatment device for construction engineering according to claim 2, characterized in that: The bottom end of the inner portion of the tank body (1) is configured to be arc-shaped. The top surface of the ring block (9) is provided with a plurality of through grooves for reducing the weight of the ring block (9). The top of the outer wall of the triangular plate (11) is provided with chamfers. The inclined tubes (14) on the disc (13) are arranged in a clockwise direction.

4. A sand filter sewage treatment device for construction engineering according to claim 3, characterized in that: The ring block (9) is located above the disc (13), the inclined rod (10) is inclined upward on the ring block (9), and the disc (13) is located above the circular hole cylinder (3).

5. A sand filter sewage treatment device for construction engineering according to claim 4, characterized in that: A filter device (15) is provided in the middle of the bottom surface of the disc (13), and the filter device (15) is used to prevent large particles of impurities from entering the quartz sand (4); A stirring device (16) is provided at the bottom of the side of the filter device (15) that is close to each other, and the stirring device (16) is used to stir the top surface of the quartz sand (4).

6. The sand filter sewage treatment device for construction engineering according to claim 5, characterized in that: The filter device (15) comprises a vertical rod (151), the vertical rod (151) is fixed in the middle of the bottom surface of the disc (13), a circular plate (152) is fixed to the bottom surface of the vertical rod (151), and a plurality of L-shaped frame plates (153) are fixed to the top surface of the circular plate (152); A ring (154) is fixed to the bottom surface of the L-shaped frame plate (153), and a filter (155) is installed between the inner wall of the ring (154) and the outer wall of the circular plate (152). The filter (155) is used to block large particles of impurities.

7. The sand filter sewage treatment device for construction engineering according to claim 6, characterized in that: The outer wall of the ring (154) is embedded with a plurality of vertical concave shells (156), and the inner walls of the vertical concave shells (156) are respectively fixed with a plurality of springs (157). The ends of the springs (157) away from the vertical concave shells (156) are respectively fixed with T-shaped chamfered plates (158). The T-shaped chamfered plates (158) are located inside the vertical concave shells (156), and the outer walls of the T-shaped chamfered plates (158) are in sliding contact with the inner wall of the tank body (1).

8. The sand filter sewage treatment device for construction engineering according to claim 7, characterized in that: The stirring device (16) comprises short columns (161), the short columns (161) are respectively fixed to the bottom of the side of the vertical concave shell (156) close to each other, and a ring frame (162) is fixed to the end of the short columns (161) close to each other; A T-shaped rod (163) is fixed on the inner wall of the ring frame (162). A tooth plate (164) is fixed on the bottom surface of the T-shaped rod (163). The tooth plate (164) is used to stir the top surface of the quartz sand (4).

9. The sand filter sewage treatment device for construction engineering according to claim 8, characterized in that: Two ring frames (165) are fixed to the outer wall of the T-shaped rod (163), a thin rod (166) is fixed to the top surface of the ring frame (165), and a magnetic ring (167) is fixed to one end of the thin rod (166) away from each other, and the magnetic ring (167) is used to absorb metal particles in sewage.

10. A treatment method for a construction engineering sand filter wastewater treatment device, using the construction engineering sand filter wastewater treatment device according to claim 8, characterized in that: The following steps are involved: S1. Construction workers install the sewage pipe above the water inlet pipe (6), and the sewage enters the tank (1) through the water inlet pipe (6); S2, the round rod (8) drives the ring block (9) to rotate forward, the ring block (9) drives the inclined rod (10) to rotate forward, and the inclined rod (10) drives the triangular plate (11) to rotate forward; S3, the round rod (8) drives the disc (13) to rotate forward, the disc (13) rotates in the concave ring (12), the disc (13) and the inclined pipe (14) rotate forward, and the sewage flows into the inclined pipe (14); S4, the ring (154) drives the filter (155) to rotate forward, and during the rotation of the filter (155), the filter (155) filters large particles of impurities in the sewage; S5, the vertical concave shell (156) drives the spring (157) to rotate forward, and the spring (157) drives the T-shaped chamfered plate (158) to rotate forward. Under the compression force of the spring (157), the T-shaped chamfered plate (158) rotates against the wall of the tank body (1); S6, the ring frame (162) drives the T-shaped rod (163) to rotate forward, the T-shaped rod (163) drives the tooth plate (164) to rotate forward, and the tooth plate (164) stirs the surface of the quartz sand (4); S7, the ring straight frame (165) drives the thin rod (166) to rotate forward, and the thin rod (166) drives the magnetic ring (167) to rotate forward; S8. The purified sewage flows downward from the drainage hole of the circular hole cylinder (3), and the purified sewage flows out of the drainage pipe (2) for recycling.

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