Large concrete mixing plant sewage treatment system

Abstract

The application discloses a sewage treatment system for large concrete mixing production and relates to the field of concrete mixing buildings, which comprises a base, a first treatment box and a second treatment box. The first treatment box is arranged above the base, and the right side of the first treatment box is provided with the second treatment box. The first treatment box is higher than the second treatment box, and the top of the first treatment box is provided with an adding opening. The bottom of the first treatment box is designed in an open structure. A support frame is connected to the outside of the first treatment box and fixed to the top of the base. A bottom sealing plug is arranged at the bottom of the first treatment box. The sewage treatment system filters the granular gravel in the sewage through a screening plate. The filtered gravel can enter the inside of a connecting cover, and can be automatically taken out by cooperating with a conveying auger, so that the treatment of the screened particles is realized, the filtration of the water body can be continuously carried out, and the sewage treatment efficiency is improved.

Description

Technical Field

[0001] This invention belongs to the technical field of concrete mixing plants, specifically a wastewater treatment system for large-scale concrete mixing production. Background Technology

[0002] In the production of large-volume concrete in a concrete mixing plant, the wastewater generated during production and the wastewater generated from rinsing the mixing plant after concrete production can be treated and recycled through a wastewater treatment system to reduce water waste. Application number CN202010694567.9, published on October 20, 2020, discloses a wastewater treatment device for concrete preparation. The device includes: a main body; an inlet pipe connected to the inside of the main body; a rotating shaft rotatably disposed inside the inlet pipe, on which an axial flow component and a dispersing element for spirally dispersing wastewater are fixedly installed, the dispersing element being fixedly installed inside the inlet pipe; and a filter element slidably disposed left and right inside the main body, and inclined. The filter element has a fixedly installed mating groove, and an eccentric wheel is fixedly installed at the bottom of the rotating shaft to drive the mating groove to reciprocate left and right, the eccentric wheel abutting against the mating groove on the mating groove; the filter element is elastically disposed left and right inside the main body. This invention prevents filter clogging, extends the service life of the filter, and disperses wastewater, thus improving filtration efficiency. A wastewater treatment device for a concrete mixing plant, disclosed in application CN202322373457.4 on April 19, 2024, includes a base. A first treatment tank is mounted on one side of the top of the base. The first treatment tank has a groove inside and a filter screen is slidably connected inside. Protrusions are fixedly mounted on both sides of the filter screen and slidably connected to the groove. A lifting mechanism is mounted on the outside of the first treatment tank. A pipe is connected to one side of the bottom of the first treatment tank, and a water pump is connected to the other end of the pipe. A second treatment tank is connected to the other side of the water pump via a pipe. A stirring mechanism is installed inside the second treatment tank. An inlet is opened on one side of the top of the second treatment tank, and a water outlet is connected to one side of the bottom of the second treatment tank. A solenoid valve is installed at one end of the water outlet. A microcontroller is mounted on one side of the top of the base. Beneficial effects: The lifting mechanism allows the filter screen to be raised to the top of the first treatment tank, and workers can then easily clean or replace the filter screen using a ladder.

[0003] Currently, when treating concrete wastewater, because the wastewater contains a lot of gravel, it needs to be filtered. However, when used in the mixing plant, the large volume of water and the gravel can easily clog the filter, thus affecting the efficiency of subsequent wastewater treatment. The gravel needs to be removed regularly, which reduces the efficiency of wastewater treatment. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a wastewater treatment system for large-scale concrete mixing production, so as to solve the problem mentioned in the background art that when treating concrete wastewater, since the wastewater contains a lot of particles and gravel, it needs to be filtered. When used in the mixing plant, the large amount of water and particles and gravel can easily clog the filter mechanism, thereby affecting the efficiency of subsequent wastewater treatment.

[0005] The technical problem solved by this invention is achieved through the following technical solution:

[0006] A wastewater treatment system for large-scale concrete mixing production includes a base, a first treatment tank, and a second treatment tank. The first treatment tank is positioned above the base, and the second treatment tank is located to the right of the first treatment tank. The first treatment tank is higher than the second treatment tank. The first treatment tank has an inlet at its top and an open structure at its bottom. A support frame is connected to the outside of the first treatment tank and fixed to the base. A bottom sealing plug is provided at the bottom of the first treatment tank to seal the bottom. The bottom sealing plug and the first treatment tank have a sliding structure, and a hydraulic rod is connected below the bottom sealing plug. The movement of the bottom sealing plug is controlled. The first treatment tank is equipped with a screening plate to screen the gravel particles in the sewage. The screening plate has a conical structure design, and a collection hood is fixed below the screening plate to collect the particles sorted on the screening plate. A particle discharge mechanism is set above the collection hood to send the gravel outward. A connecting pipe is fixed below the screening plate, and the right end of the connecting pipe is connected to the second treatment tank, so that the water after sedimentation in the first treatment tank enters the interior of the second treatment tank through the connecting pipe. A discharge pipe is set below the second treatment tank. A dosing chamber is set above the second treatment tank, and a stirring and mixing mechanism is set in the middle of the second treatment tank.

[0007] Furthermore, an auxiliary plate is provided below the screening plate, and the upper part of the auxiliary plate is designed with an inclined structure, and the end of the auxiliary plate is designed with a through structure to guide the water passing through the screening plate.

[0008] Furthermore, a filter screen is provided on the left side of the connecting pipe, and the filter screen is located inside the first treatment tank to filter the water entering the connecting pipe.

[0009] Moreover, the particle discharge mechanism includes a connecting cover, a conveying auger, a first motor, and a fixing column;

[0010] A connecting cover is positioned above the collection cover;

[0011] The conveying auger is rotatably installed inside the connecting cover, with its lower end located inside the collecting cover;

[0012] The first motor is installed above the conveying auger to control its rotation;

[0013] The fixing column is fixed below the connecting cover to connect the connecting cover and the screening plate.

[0014] Furthermore, an impurity discharge pipe is fixed above the connecting cover, and the upper part of the impurity discharge pipe is inclined to guide the impurities discharged from the connecting cover.

[0015] Moreover, the stirring and mixing mechanism includes a second motor, an output shaft, a movable shaft, and a stirring rod;

[0016] The second motor is installed above the second processing box;

[0017] The output shaft is rotatably mounted above the second processing box and is connected to the second motor;

[0018] The movable shaft is located below the output shaft and rotates synchronously with the output shaft;

[0019] The stirring rods are fixed to the surface of the movable shaft, and the stirring rods are evenly distributed on the surface of the movable shaft.

[0020] Furthermore, the movable shaft and the output shaft form an up-and-down sliding structure, and a reciprocating drive mechanism is provided above the movable shaft.

[0021] Furthermore, a transmission block is fixed below the output shaft, and the transmission block has a rectangular structure design. The transmission block is located above the movable shaft and between the movable shaft to form an up-and-down sliding structure.

[0022] Furthermore, the reciprocating drive mechanism includes a fixed base, a connecting rod, and a slide groove;

[0023] A fixed base is fixed inside the second processing box, and a movable shaft passes through the fixed base to form a nested connection between the fixed base and the fixed base;

[0024] The connecting rod is fixed above the movable shaft and has an "L" shaped structure design. Ball bearings are installed at the bottom of the connecting rod.

[0025] The slide is circularly formed above the fixed base, and the bottom of the slide is designed with an inclined structure. The slide and the connecting rod form a sliding connection.

[0026] The advantages and beneficial effects of this invention are as follows:

[0027] 1. The wastewater treatment system for large-scale concrete mixing production of the present invention can settle the filtered wastewater by setting up a first treatment tank. The settled water enters the second treatment tank through a connecting pipe for further treatment. The wastewater can be filtered again through a filter screen in the second treatment tank to improve the wastewater treatment effect.

[0028] 2. The wastewater treatment system for large-scale concrete mixing production of the present invention seals the bottom of the first treatment tank by setting a bottom sealing plug. After wastewater treatment, the water can be pushed by moving the bottom sealing plug upward, so that the water at the bottom can also enter the second treatment tank through the connecting pipe for subsequent treatment. Furthermore, by controlling the downward movement of the bottom sealing plug, it can be removed from the bottom of the first treatment tank, which facilitates the cleaning of deposited impurities.

[0029] 3. The wastewater treatment system for large-scale concrete mixing production of the present invention filters particulate gravel in wastewater through a screening plate, and the filtered gravel can enter the interior of the connecting cover, and can be automatically carried out by a conveying auger, thereby realizing the treatment of the screened particles, enabling continuous filtration of water and improving wastewater treatment efficiency.

[0030] 4. The wastewater treatment system for large-scale concrete mixing production of the present invention allows for the addition of wastewater treatment agents to the second treatment tank through the dosing chamber, and the water is stirred in conjunction with the mixing mechanism to ensure that the agents and water are evenly mixed, thereby effectively treating the wastewater.

[0031] 5. The wastewater treatment system for large-scale concrete mixing production of the present invention, through the reciprocating drive mechanism, enables the movable shaft to reciprocate vertically while rotating, thereby increasing the range of motion of the stirring rod, thus improving the mixing uniformity of the agent and enabling it to exert its effect better. Attached Figure Description

[0032] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0033] Figure 2 This is a side view of the structure of the present invention;

[0034] Figure 3 This is a schematic diagram of the internal structure of the first processing box of the present invention;

[0035] Figure 4 This is a schematic diagram of the main cross-sectional structure of the first processing box of the present invention;

[0036] Figure 5 This is a schematic diagram of the main cross-sectional structure of the connecting cover of the present invention;

[0037] Figure 6 This is a schematic diagram of the main cross-sectional structure of the second processing box of the present invention;

[0038] Figure 7 This is a three-dimensional structural diagram of the fixing base of the present invention;

[0039] Figure 8 This is a schematic diagram of the main cross-sectional structure of the fixing seat of the present invention.

[0040] In the diagram: 1. Base; 2. First processing box; 3. Second processing box; 4. Adding port; 5. Connecting pipe; 6. Discharge pipe; 7. Bottom sealing plug; 8. Hydraulic rod; 9. Support frame; 10. Screening plate; 11. Collection cover; 12. Connecting cover; 13. Conveying auger; 14. First motor; 15. Impurity discharge pipe; 16. Fixed column; 17. Auxiliary plate; 18. Filter screen; 19. Dosing chamber; 20. Second motor; 21. Output shaft; 22. Movable shaft; 23. Stirring rod; 24. Transmission block; 25. Fixed seat; 26. Connecting rod; 27. Slide groove. Detailed Implementation

[0041] The present invention will be further described in detail below through specific embodiments. The following embodiments are merely descriptive and not limiting, and should not be used to limit the scope of protection of the present invention.

[0042] Example 1:

[0043] Please see Figures 1-8 The present invention provides the following technical solution: a wastewater treatment system for large-scale concrete mixing production, including a base 1, a first treatment box 2, and a second treatment box 3. The first treatment box 2 is located above the base 1, and the second treatment box 3 is located on the right side of the first treatment box 2.

[0044] The first treatment tank 2 is higher than the second treatment tank 3, and an inlet 4 is provided on the top of the first treatment tank 2. The bottom of the first treatment tank 2 has an open structure design. A support frame 9 is connected to the outside of the first treatment tank 2 and is fixed above the base 1. A bottom sealing plug 7 is provided at the bottom of the first treatment tank 2 to seal the bottom of the first treatment tank 2. The bottom sealing plug 7 and the first treatment tank 2 form an up-and-down sliding structure. A hydraulic rod 8 is connected below the bottom sealing plug 7 to control the movement of the bottom sealing plug 7. A screening plate 10 is provided inside the first treatment tank 2 to screen the gravel particles in the sewage. The screening plate 10 has a conical structure design, and a collection cover 11 is fixed below the screening plate 10 to collect the particles sorted on the screening plate 10. A particle discharge mechanism is provided above the cover 11 to send the crushed stone outward. A connecting pipe 5 is fixed below the screening plate 10, and the right end of the connecting pipe 5 is connected to the second treatment tank 3, so that the water after sedimentation in the first treatment tank 2 enters the interior of the second treatment tank 3 through the connecting pipe 5. A discharge pipe 6 is provided below the second treatment tank 3. A dosing chamber 19 is provided above the second treatment tank 3, and a stirring and mixing mechanism is provided in the middle of the second treatment tank 3. An auxiliary plate 17 is provided below the screening plate 10, and the upper part of the auxiliary plate 17 is designed with an inclined structure, and the end of the auxiliary plate 17 is designed with a through structure to guide the water that has passed through the screening plate 10. A filter screen 18 is provided on the left side of the connecting pipe 5, and the filter screen 18 is located inside the first treatment tank 2 to filter the water that enters the connecting pipe 5.

[0045] In use, wastewater is added to the first treatment tank 2 through the inlet 4 and filtered through the sieve plate 10. The gravel enters the collection hood 11 along the sieve plate 10 and is sent out through the particle discharge mechanism. The filtered wastewater settles in the first treatment tank 2. When the water level reaches the connecting pipe 5, it enters the second treatment tank 3 through the connecting pipe 5 for further treatment. After the addition of wastewater is stopped, the water accumulated in the first treatment tank 2 can be pushed upward by moving the bottom sealing plug 7, so that the water can continue to enter the second treatment tank 3 through the connecting pipe 5. Subsequently, the bottom sealing plug 7 is moved downward by the hydraulic rod 8 to remove it from the first treatment tank 2, which can clean the deposited impurities.

[0046] Example 2:

[0047] Based on Embodiment 1, a particle discharge mechanism is disclosed, comprising a connecting cover 12, a conveying auger 13, a first motor 14, and a fixing column 16. The connecting cover 12 is disposed above the collecting cover 11. The conveying auger 13 is rotatably installed inside the connecting cover 12, with its lower end located inside the collecting cover 11. The first motor 14 is installed above the conveying auger 13 to control its rotation. The fixing column 16 is fixed below the connecting cover 12 to connect the connecting cover 12 and the screening plate 10. An impurity discharge pipe 15 is fixed above the connecting cover 12, and the upper part of the impurity discharge pipe 15 is inclined to guide the impurities discharged from the connecting cover 12.

[0048] After the crushed stone enters the collection hood 11, the first motor 14 drives the conveying auger 13 to rotate, causing the conveying auger 13 to move the crushed stone and transfer it from the collection hood 11 to the connecting hood 12. The crushed stone moves into the impurity discharge pipe 15 and is discharged outward, so that the crushed stone can be continuously transferred outward, avoiding the filtration effect of the screening plate 10 being blocked.

[0049] Example 3:

[0050] Based on Embodiment 1, a mixing mechanism is disclosed, comprising a second motor 20, an output shaft 21, a movable shaft 22, and a stirring rod 23. The second motor 20 is mounted above the second processing tank 3. The output shaft 21 is rotatably mounted above the second processing tank 3 and is connected to the second motor 20. The movable shaft 22 is positioned below the output shaft 21 and rotates synchronously with it. The stirring rod 23 is fixed to the surface of the movable shaft 22 and is evenly distributed on the surface of the movable shaft 22. The movable shaft 22 and the output shaft 21 form an up-and-down sliding structure. A reciprocating drive mechanism is provided above the movable shaft 22, and a transmission block 2 is fixed below the output shaft 21. 4. The transmission block 24 has a rectangular structure design and is located above the movable shaft 22, forming an up-and-down sliding structure. The reciprocating drive mechanism includes a fixed seat 25, a connecting rod 26, and a slide groove 27. The fixed seat 25 is fixed inside the second processing box 3. The movable shaft 22 passes through the fixed seat 25 and forms a nested connection between the fixed seat 25. The connecting rod 26 is fixed above the movable shaft 22 and has an "L" shaped structure design. A ball bearing is provided below the connecting rod 26. The slide groove 27 is annularly opened above the fixed seat 25 and has an inclined bottom structure design. The slide groove 27 and the connecting rod 26 form a sliding connection.

[0051] The chemicals can be added into the second treatment tank 3 through the dosing chamber 19. Then, the output shaft 21 can be rotated by the second motor 20. The output shaft 21 drives the movable shaft 22 to rotate through the transmission block 24. The movable shaft 22 drives the stirring rod 23 to rotate, stirring the water in the second treatment tank 3. At the same time, when the movable shaft 22 rotates, it will drive the connecting rod 26 to slide in the chute 27. With the inclined structure at the bottom of the chute 27 and the gravity of the movable shaft 22 and the stirring rod 23, the movable shaft 22 can move up and down, driving the stirring rod 23 to move and increasing the stirring range.

[0052] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0053] Although the embodiments and drawings of the present invention have been disclosed for illustrative purposes, those skilled in the art will understand that various substitutions, variations and modifications are possible without departing from the spirit and scope of the invention and the appended claims. Therefore, the scope of the invention is not limited to the contents disclosed in the embodiments and drawings.

Claims

1. A wastewater treatment system for large-scale concrete mixing production, comprising a base (1), a first treatment box (2) and a second treatment box (3), wherein the first treatment box (2) is located above the base (1) and the second treatment box (3) is located on the right side of the first treatment box (2). Its features are: The first processing box (2) is higher than the second processing box (3), and an addition port (4) is provided on the top of the first processing box (2). The bottom of the first processing box (2) is designed with an open structure. A support frame (9) is connected to the outside of the first processing box (2). The support frame (9) is fixed above the base (1). A bottom sealing plug (7) is provided at the bottom of the first processing box (2). The bottom of the first processing box (2) is sealed by the bottom sealing plug (7). The bottom sealing plug (7) and the first processing box (2) form an up-and-down sliding structure. A hydraulic rod (8) is connected below the bottom sealing plug (7) to control the movement of the bottom sealing plug (7). A screening plate (10) is provided inside the first processing box (2) to screen the waste. The crushed stone particles in the water are screened, and the screen plate (10) is designed with a conical structure. A collection cover (11) is fixed below the screen plate (10) to collect the particles sorted on the screen plate (10). A particle discharge mechanism is set above the collection cover (11) to send the crushed stone outward. A connecting pipe (5) is fixed below the screen plate (10), and the right end of the connecting pipe (5) is connected to the second treatment tank (3) so that the water after sedimentation in the first treatment tank (2) enters the interior of the second treatment tank (3) through the connecting pipe (5). A discharge pipe (6) is set below the second treatment tank (3). A dosing chamber (19) is set above the second treatment tank (3), and a stirring and mixing mechanism is set in the middle of the second treatment tank (3). An auxiliary plate (17) is provided below the screening plate (10), and the upper part of the auxiliary plate (17) is designed with an inclined structure. The end of the auxiliary plate (17) is provided with a through water passage opening to guide the water passing through the screening plate (10). A filter screen (18) is provided on the left side of the connecting pipe (5), and the filter screen (18) is located inside the first processing box (2) to filter the water entering the connecting pipe (5); The bottom of the first treatment tank is sealed by a bottom sealing plug. After the sewage is treated, the water can be pushed up by moving the bottom sealing plug upwards, so that the water at the bottom can also enter the second treatment tank through the connecting pipe for further treatment. The bottom sealing plug can be moved down to remove it from the bottom of the first treatment tank to clean up the deposited impurities.

2. The wastewater treatment system for large-scale concrete mixing production according to claim 1, characterized in that: The particle discharge mechanism includes a connecting cover (12), a conveying auger (13), a first motor (14), and a fixing column (16). A connecting cover (12) is positioned above the collecting cover (11); The conveying auger (13) is rotatably installed inside the connecting cover (12), and the lower end of the conveying auger (13) is located inside the collecting cover (11); The first motor (14) is installed above the conveying auger (13) to control the rotation of the conveying auger (13); The fixing column (16) is fixed below the connecting cover (12) to connect the connecting cover (12) and the screening plate (10).

3. The wastewater treatment system for large-scale concrete mixing production according to claim 2, characterized in that: An impurity discharge pipe (15) is fixed above the connecting cover (12), and the impurity discharge pipe (15) is set at an angle to guide the impurities discharged from the connecting cover (12).

4. The wastewater treatment system for large-scale concrete mixing production according to claim 1, characterized in that: The stirring and mixing mechanism includes a second motor (20), an output shaft (21), a movable shaft (22), and a stirring rod (23). The second motor (20) is installed above the second processing box (3); The output shaft (21) is rotatably mounted above the second processing box (3), and the output shaft (21) is connected to the second motor (20); The movable shaft (22) is located below the output shaft (21) and rotates synchronously with the output shaft (21); The stirring rod (23) is fixed on the surface of the movable shaft (22), and the stirring rod (23) is evenly distributed on the surface of the movable shaft (22).

5. The wastewater treatment system for large-scale concrete mixing production according to claim 4, characterized in that: The movable shaft (22) and the output shaft (21) form an up-and-down sliding structure, and a reciprocating drive mechanism is provided above the movable shaft (22).

6. The wastewater treatment system for large-scale concrete mixing production according to claim 5, characterized in that: A transmission block (24) is fixed below the output shaft (21), and the transmission block (24) is designed in a rectangular structure. The transmission block (24) is located above the movable shaft (22) and between the movable shaft (22) to form an up-and-down sliding structure.

7. The wastewater treatment system for large-scale concrete mixing production according to claim 5 or 6, characterized in that: The reciprocating drive mechanism includes a fixed base (25), a connecting rod (26), and a slide (27); The fixed seat (25) is fixed inside the second processing box (3), and the movable shaft (22) passes through the fixed seat (25) to form a nested connection between the fixed seat (25); The connecting rod (26) is fixed above the movable shaft (22), and the connecting rod (26) has an "L" shaped structure design, and a ball bearing is provided below the connecting rod (26); The slide groove (27) is circularly formed above the fixed seat (25), and the bottom of the slide groove (27) is designed with an inclined structure. The slide groove (27) and the connecting rod (26) form a sliding connection.

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