Recycled wastewater utilization adjusting device for concrete mixing plant

By combining a layered overflow and a screw conveyor structure, the problem of low sedimentation efficiency of suspended impurities in concrete mixing plant wastewater is solved, achieving efficient separation and recycling of wastewater and ensuring stable equipment operation.

CN224207491UActive Publication Date: 2026-05-08CHONGQING TONGLEI HIGH-TECH CONCRETE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING TONGLEI HIGH-TECH CONCRETE CO LTD
Filing Date
2025-04-09
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

The washing wastewater generated by concrete mixing plants contains suspended impurities. Traditional sedimentation tanks have low sedimentation efficiency, resulting in poor recycling. Furthermore, the settled sludge and mortar impurities tend to accumulate, affecting equipment operation.

Method used

The system employs a combined structure of tiered overflow design and auger conveyor, using a sedimentation component to settle suspended particles and separate sludge, while the deflection action of the discharge component prevents impurity accumulation and ensures stable equipment operation.

Benefits of technology

It achieves efficient separation and recycling of wastewater, avoids the accumulation of impurities, ensures long-term stable operation of the equipment, and improves the quality of recycled water.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of concrete production, in particular to a recycled wastewater utilization adjusting device for a concrete mixing plant. According to the technical scheme, the device comprises a base table and a tank body, the tank body is arranged on the base table through supporting legs, a precipitation assembly is arranged in the tank body, an inner ring is arranged at the upper end of the inner wall of the tank body, an overflow space is formed between the inner ring and the tank body, a water drainage opening is formed in the overflow space, and a blow-off pipe is arranged at the bottom end of the tank body. A sewage discharging assembly is rotationally arranged on the sewage discharging pipe, and the rotatable design of the sewage discharging assembly is used for adjusting the discharging direction of the sewage discharging assembly. Layered overflow design is adopted to ensure thorough separation of supernate and sludge, the recycled water quality is improved, a combined structure of auger rod conveying and reciprocating deflection pollution discharge is adopted, continuous pollution discharge is achieved, meanwhile, too high accumulation of mortar impurities is avoided, and long-term stable operation of equipment is ensured.
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Description

Technical Field

[0001] This utility model relates to the field of concrete production technology, and in particular to a wastewater recycling and regulation device for concrete mixing plants. Background Technology

[0002] Concrete mixing plants generate large amounts of washing wastewater during production, which contains suspended impurities such as cement particles and sand residue. Traditional wastewater treatment methods typically rely on simple sedimentation tanks for solid-liquid separation. However, due to turbulent water flow and low sedimentation efficiency, the wastewater still contains a significant amount of suspended particles, affecting recycling efficiency. Furthermore, settled sludge and mortar impurities tend to accumulate at the bottom of the tank, leading to poor drainage and impacting the long-term operation of the equipment.

[0003] Therefore, we propose a wastewater recycling and regulation device for concrete mixing plants to solve the existing problems. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a regulating device for the recycling and utilization of wastewater in concrete mixing plants.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a wastewater recycling and adjustment device for a concrete mixing plant, comprising a base and a tank, wherein the tank is mounted on the base via support legs, and a sedimentation assembly is provided inside the tank for sedimentation of the wastewater entering the tank. An inner ring is provided at the upper end of the inner wall of the tank, and an overflow space is formed between the inner ring and the tank, with a drain outlet provided on the overflow space.

[0006] The tank is equipped with a drain pipe at the bottom, and a drain assembly is rotatably mounted on the drain pipe. The rotatable design of the drain assembly is used to adjust the discharge direction of the drain assembly. The drain assembly is used to remove sediment from the bottom of the inner wall of the tank.

[0007] Preferably, the sedimentation assembly consists of a connecting plate, a central tube, an annulus, a connecting rod, a reflector, and a feed pipe. The connecting plate is disposed on the upper surface of the inner ring, the central tube is disposed on the connecting plate, and the feed pipe is disposed inside the central tube with its opening facing upward, with the other end of the feed pipe penetrating the tank body.

[0008] Preferably, the ring is disposed on the outer wall of the central tube, the connecting rod is disposed on the ring, and the reflector is disposed at the bottom end of the connecting rod and directly below the central tube.

[0009] Preferably, the sewage discharge assembly consists of an upper motor, an inlet, a shaft head, an auger rod, a cylindrical shell, an outlet, and a lower motor. The inlet is rotatably mounted on the sewage discharge pipe, the cylindrical shell is connected to the inlet, the outlet is located at the bottom of the other end of the cylindrical shell, the auger rod is rotatably mounted inside the cylindrical shell, and the upper motor is located on the outer wall of the cylindrical shell with its output end connected to the auger rod.

[0010] Preferably, the shaft head is located at the bottom of the cylindrical shell and is coaxial with the sewage pipe, and the lower motor is located on the base and its output end is connected to the shaft head.

[0011] Preferably, the upper surface of the base is provided with a track, and the outer wall of the casing of the sewage discharge component is provided with a slider, which is slidably disposed on the track.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] In use, the wastewater recycling and adjustment device for concrete mixing plants is connected to an external power source. The collected wastewater from the concrete mixing plant enters the tank through the sedimentation component for sedimentation. After sedimentation, the wastewater enters the overflow space under the overflow action and is finally discharged through the drain outlet for recycling.

[0014] The precipitated mortar impurities are discharged into the sludge discharge assembly through the tank's drain pipe under the action of gravity. The sludge discharge assembly is then discharged from the tank for recycling. When the sludge discharge assembly is working, it can deflect along the same axis as the tank, thereby repeatedly changing the discharge direction of the sludge discharge assembly, which can prevent the mortar impurities directly below the outlet of the sludge discharge assembly from accumulating too high.

[0015] When the sedimentation unit is working, the wastewater to be treated enters the central tube through the feed pipe and then falls from the central tube. Under the action of the reflector, the vertical downward water flow is changed to a horizontal direction, so that the water flow is evenly distributed throughout the sedimentation zone. Due to the low water flow velocity, the suspended particles in the water gradually settle under the action of gravity, and the sludge that settles into the tank is concentrated at the lowest point inside the tank.

[0016] When the sewage discharge assembly is working, the upper motor drives the auger rod to rotate, thereby sending the mortar that falls into the cylinder from the inlet to the outlet for centralized collection. At the same time, the lower motor drives the cylinder to reciprocate through the shaft head, thereby changing the position of the outlet.

[0017] Furthermore, the stability of the cylinder shell's deflection motion is increased by coordinating the slider with the track;

[0018] This invention employs a layered overflow design to ensure thorough separation of the supernatant and sludge, improving the quality of the recycled water. It also utilizes a combination structure of auger conveyor and reciprocating deflection discharge to achieve continuous discharge while preventing excessive accumulation of slurry impurities, thus ensuring long-term stable operation of the equipment. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the precipitation component structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the sewage discharge component structure of this utility model.

[0023] Figure label:

[0024] 1. Base; 2. Support legs; 3. Tank body; 4. Sedimentation assembly; 401. Connecting plate; 402. Central tube; 403. Ring; 404. Connecting rod; 405. Reflector plate; 406. Feed pipe; 5. Inner ring; 6. Drain outlet; 7. Sewage discharge assembly; 701. Upper motor; 702. Inlet; 703. Shaft head; 704. Screw rod; 705. Shell; 706. Outlet; 707. Lower motor; 8. Track; 9. Slider; 10. Sewage discharge pipe. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1

[0027] like Figures 1-4As shown, the present invention proposes a wastewater recycling and adjustment device for concrete mixing plants, including a base 1 and a tank 3. The tank 3 is mounted on the base 1 via support legs 2. The tank 3 is equipped with a sedimentation component 4 inside, which is used to perform sedimentation on the wastewater entering the tank 3. The upper end of the inner wall of the tank 3 is provided with an inner ring 5, which forms an overflow space with the tank 3. A drain outlet 6 is provided on the overflow space. During use, when connected to an external power source, the collected wastewater from the concrete mixing plant enters the tank 3 through the sedimentation component 4 for sedimentation. The sedimented wastewater enters the overflow space under the overflow action and is finally discharged through the drain outlet 6 for recycling.

[0028] The bottom of the tank body 3 is provided with a drain pipe 10, and a drain assembly 7 is rotatably mounted on the drain pipe 10. The rotatable design of the drain assembly 7 is used to adjust the discharge direction of the drain assembly 7. The drain assembly 7 is used to remove the sediment at the bottom of the inner wall of the tank body 3.

[0029] The precipitated mortar impurities are discharged from the tank 3 and recycled under the action of gravity through the drain pipe 10 of the tank 3. When the drain component 7 is working, the drain component 7 can deflect coaxially with the tank 3, thereby repeatedly changing the discharge direction of the drain component 7, which can prevent the mortar impurities directly below the outlet 706 of the drain component 7 from accumulating too high.

[0030] Example 2

[0031] like Figures 1-4 As shown, the present invention proposes a wastewater recycling and regulating device for concrete mixing plants. Compared with Embodiment 1, this embodiment further includes: a sedimentation assembly 4 composed of a connecting plate 401, a central pipe 402, an annular ring 403, a connecting rod 404, a reflector plate 405, and a feed pipe 406. The connecting plate 401 is located on the upper surface of the inner ring 5, the central pipe 402 is located on the connecting plate 401, the feed pipe 406 is located inside the central pipe 402 with its opening facing upwards, and the other end of the feed pipe 406 penetrates the tank body 3. The annular ring 403 is located on the outer wall of the central pipe 402. The connecting rod 404 is located on the ring 403, and the reflector plate 405 is located at the bottom of the connecting rod 404 and directly below the central tube 402. When the sedimentation component 4 is working, the wastewater to be treated enters the central tube 402 through the feed pipe 406 and then falls from the central tube 402. Under the action of the reflector plate 405, the vertical downward water flow is changed to a horizontal direction, so that the water flow is evenly distributed throughout the sedimentation zone. Due to the low water flow velocity, the suspended particles in the water gradually settle under the action of gravity, and the sludge that settles into the tank 3 is concentrated at the lowest point inside the tank 3.

[0032] The sewage discharge assembly 7 consists of an upper motor 701, an inlet 702, a shaft head 703, an auger rod 704, a cylindrical shell 705, an outlet 706, and a lower motor 707. The inlet 702 is rotatably mounted on the sewage discharge pipe 10. The cylindrical shell 705 is connected to the inlet 702. The outlet 706 is located at the bottom of the other end of the cylindrical shell 705. The auger rod 704 is rotatably mounted inside the cylindrical shell 705. The upper motor 701 is located on the outer wall of the cylindrical shell 705, and its output end is connected to the auger rod 704. When the sewage discharge assembly 7 is working, the upper motor 701 drives the auger rod 704 to rotate, thereby sending the mortar that falls from the inlet 702 into the cylindrical shell 705 to the outlet 706 for centralized collection.

[0033] The shaft head 703 is located at the bottom of the shell 705 and is coaxial with the drain pipe 10. The lower motor 707 is located on the base 1 and its output end is connected to the shaft head 703. At the same time, the lower motor 707 drives the shell 705 to reciprocate through the shaft head 703, thereby changing the position of the outlet 706.

[0034] The upper surface of the base 1 is provided with a track 8, and the outer wall of the casing 705 of the sewage discharge component 7 is provided with a slider 9. The slider 9 is slidably mounted on the track 8. The stability of the deflection movement of the casing 705 is increased by the cooperation between the slider 9 and the track 8.

[0035] It should be noted that the motor structure is a mature existing technology, and its working principle and internal structure are known to those skilled in the art. This utility model only utilizes its function and does not improve its internal structure. Therefore, it will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0036] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A wastewater recycling and regulation device for a concrete mixing plant, comprising a base (1) and a tank (3), characterized in that: The tank (3) is mounted on the base (1) via support legs (2). The tank (3) is equipped with a sedimentation assembly (4) inside. The sedimentation assembly (4) is used to perform sedimentation on the wastewater entering the tank (3). The upper end of the inner wall of the tank (3) is provided with an inner ring (5). The inner ring (5) and the tank (3) form an overflow space. A drain outlet (6) is provided on the overflow space. The tank (3) is provided with a drain pipe (10) at the bottom end. A drain assembly (7) is rotatably provided on the drain pipe (10). The rotatable design of the drain assembly (7) is used to adjust the discharge direction of the drain assembly (7). The drain assembly (7) is used to remove the sediment at the bottom of the inner wall of the tank (3).

2. The wastewater recycling and regulation device for a concrete mixing plant according to claim 1, characterized in that: The sedimentation assembly (4) consists of a connecting plate (401), a central tube (402), an annulus (403), a connecting rod (404), a reflector plate (405), and a feed pipe (406). The connecting plate (401) is located on the upper surface of the inner ring (5), the central tube (402) is located on the connecting plate (401), and the feed pipe (406) is located inside the central tube (402) with its opening facing upward, and the other end of the feed pipe (406) penetrates the tank body (3).

3. The wastewater recycling and regulation device for a concrete mixing plant according to claim 2, characterized in that: The ring (403) is disposed on the outer wall of the central tube (402), the connecting rod (404) is disposed on the ring (403), and the reflector (405) is disposed at the bottom end of the connecting rod (404) and is located directly below the central tube (402).

4. The wastewater recycling and regulation device for a concrete mixing plant according to claim 1, characterized in that: The sewage discharge assembly (7) consists of an upper motor (701), an inlet (702), a shaft head (703), an auger rod (704), a cylindrical shell (705), an outlet (706), and a lower motor (707). The inlet (702) is rotatably mounted on the sewage discharge pipe (10). The cylindrical shell (705) is connected to the inlet (702). The outlet (706) is located at the bottom of the other end of the cylindrical shell (705). The auger rod (704) is rotatably mounted inside the cylindrical shell (705). The upper motor (701) is located on the outer wall of the cylindrical shell (705), and its output end is connected to the auger rod (704).

5. The wastewater recycling and regulation device for a concrete mixing plant according to claim 4, characterized in that: The shaft head (703) is located at the bottom of the cylindrical shell (705) and is coaxial with the drain pipe (10). The lower motor (707) is located on the base (1) and its output end is connected to the shaft head (703).

6. The wastewater recycling and regulation device for a concrete mixing plant according to claim 1, characterized in that: The upper surface of the base (1) is provided with a track (8), and the outer wall of the shell (705) of the sewage discharge component (7) is provided with a slider (9), which is slidably disposed on the track (8).