Sewage circulating treatment system for reinforcing steel bar production

Abstract

The utility model discloses a sewage circulation treatment system for reinforcing steel bar production, which comprises a sewage collection box, a sedimentation ladder assembly and a sedimentation basin, the sewage collection box is arranged at the top end of the sedimentation ladder assembly, and the sedimentation basin is arranged at the bottom end of the sedimentation ladder assembly; an overflow notch is formed in one side, facing the settlement ladder assembly, of the top side surface of the sewage collection box; the settlement ladder assembly is composed of a plurality of settlement ladders connected end to end, the top end of each settlement ladder is an inclined flow guide plate, the lower end of each flow guide plate is connected with a vertically-arranged and inwards-concave arc-shaped plate, the bottom end of each arc-shaped plate is connected with a forward-inclined inclined baffle so that a precipitation tank can be formed in the bottom, and each inclined baffle is connected with the flow guide plate of the next settlement ladder. The interior of the sedimentation tank is divided into an activated sludge reaction tank through a partition plate. According to the utility model, sewage is firstly cooled and settled by utilizing the settling ladder assembly, the subsequent cleaning difficulty can be reduced, and the activated sludge reaction tank is divided in the settling tank through the partition plate, so that the treatment efficiency of domestic sewage is improved while the cooling of the production sewage is accelerated.

Description

Technical Field

[0001] The utility model relates to a sewage treatment system, in particular to a sewage recycling treatment system for steel bar production. Background Art

[0002] The sewage generated in the process of steel bar production is mainly cooling water and quenching water, etc. These waters will all contain metal particles, impurities or scraps that fall off the surface during the rapid cooling of the steel bars. Moreover, after quenching or cooling, the temperature rises, and it is necessary to carry out cyclic cooling and sedimentation treatment on the water.

[0003] Currently, it is directly discharged into the sedimentation tank for cooling and sedimentation. On the one hand, a large amount of sediment settles in the sedimentation tank, which is difficult to clean up later. Secondly, since the water is recycled, the recycling cycle is not very long, so the degree of cooling is relatively low, which will affect the subsequent quenching and cooling effects. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a sewage recycling treatment system for steel bar production to solve the technical problems in the above background art.

[0005] To solve the above technical problems, the technical solution of the utility model is as follows.

[0006] A sewage recycling treatment system for steel bar production includes a sewage collection tank, a sedimentation ladder assembly and a sedimentation tank. The sewage collection tank is installed at the top of the sedimentation ladder assembly, and the sedimentation tank is installed at the bottom of the sedimentation ladder assembly; an overflow groove is opened on the top side of the sewage collection tank towards one side of the sedimentation ladder assembly; the sedimentation ladder assembly is composed of several sedimentation ladders connected end to end. The top of each sedimentation ladder is an inclined guide plate, the lower end of the guide plate is connected to a vertically arranged and concave arc plate, and the bottom end of the arc plate is connected to a forward-inclined baffle plate to form a sedimentation tank at the bottom. The baffle plate is connected to the guide plate of the next-level sedimentation ladder; an activated sludge reaction tank is separated inside the sedimentation tank through a partition.

[0007] Further, the bottom of the sedimentation tank is processed into a semi-circular groove.

[0008] Further, the inclination angle of the guide plate is 15-20 degrees.

[0009] Further, the activated sludge reaction tank is flat and is arranged in a horizontal "U" shape as a whole.

[0010] Further, it also includes a buffer tank. The buffer tank is connected to the drain outlet of the sedimentation tank through a delivery pipe, and a water pump is installed on the delivery pipe.

[0011] The advantages of the utility model are as follows:

[0012] The utility model utilizes a sedimentation ladder assembly to first cool and precipitate sewage, which, on the one hand, accelerates the cooling effect of the sewage, and secondly, performs multi-stage separation of metal impurities therein. The sedimentation ladder assembly is more convenient to clean than a sedimentation tank, which can reduce the difficulty of subsequent cleaning. The activated sludge reaction tank is divided into a partition inside the sedimentation tank, which, on the one hand, further accelerates the cooling, and secondly, increases the temperature in the activated sludge reaction tank, thereby accelerating the treatment efficiency of domestic sewage. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0014] Figure 2 A partial cross-sectional view of a lowering ladder assembly.

[0015] In the figure, 1-sewage collecting box, 11-overflow slot, 2-sedimentation ladder assembly, 21-sedimentation ladder, 211-guide plate, 212-arc plate, 213-sedimentation tank, 214-inclined baffle, 3-sedimentation tank, 4-partition, 5-activated sludge reaction tank. DETAILED DESCRIPTION

[0016] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each implementation method of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0017] As shown in the figure:

[0018] A sewage circulation treatment system for steel bar production comprises a sewage collection box 1, a sedimentation ladder assembly 2 and a sedimentation tank 3, wherein the sewage collection box 1 is installed at the top of the sedimentation ladder assembly, and the sedimentation tank 3 is installed at the bottom of the sedimentation ladder assembly; an overflow notch 11 is provided on the top side of the sewage collection box 1 facing the sedimentation ladder assembly; the sedimentation ladder assembly 2 is composed of a plurality of sedimentation ladders 21 connected end to end, and the top of each sedimentation ladder 21 is an inclined guide plate 211, the lower end of the guide plate 211 is connected to a vertically arranged and concave arc plate 212, and the bottom end of the arc plate 212 is connected to a forward inclined baffle plate 214 to form a sedimentation tank 213 at the bottom, and the inclined baffle plate 214 is connected to the guide plate 211 of the next sedimentation ladder; the inside of the sedimentation tank 3 is divided into an activated sludge reaction tank 5 by a partition plate 4 (the prior art, the specific principle is not repeated).

[0019] Working principle: The quenching water and cooling water in the steel bar production process are respectively conveyed to the sewage collection tank 1, and then overflow from the overflow trough opening 11 at the top of the sewage collection tank 1. The overflow trough opening 11 is provided so that the discharged water can be horizontally distributed into the sedimentation ladder assembly 2. First, it enters the guide plate 211. The function of the guide plate 211 is also to horizontally disperse the water. Then it falls into the sedimentation tank 213. Since the lower end of the guide plate 211 is connected to the vertically arranged and concave arc plate 212, the falling water curtain contacts the air on both the front and back, thus accelerating the cooling effect. Since the metal particles, impurities or scraps in the sewage have a large specific gravity, they will impact downward to the bottom during the falling process, thereby completing sedimentation separation. Then, multi-stage cooling and separation are carried out successively downward, and finally it enters the sedimentation pool 3.

[0020] After entering the sedimentation pool 3, there are basically few impurities left, and further cooling and sedimentation occur inside. In the present utility model, the activated sludge reaction tank 5 for domestic sewage treatment is built in the sedimentation pool 3. On the one hand, it can absorb the heat in the sedimentation pool 3 to cool the production sewage, facilitating recycling for cooling or quenching, etc. On the other hand, after the domestic sewage in the activated sludge reaction tank 5 absorbs heat, the temperature can be maintained in the range of 30 - 40 degrees Celsius, thereby enhancing the reaction activity of the activated sludge and increasing the treatment efficiency of domestic sewage, especially the treatment efficiency improvement in winter is more obvious.

[0021] For the convenience of collection or cleaning, the bottom of the sedimentation tank 213 is processed into a semi-circular arc groove, so that the sedimentation is concentrated at the bottom. The inclination angle of the guide plate 211 can be 15 - 20 degrees, avoiding the water flow from directly entering the next-stage guide plate 211 due to too large a forward impact amplitude.

[0022] As an optimized solution, the activated sludge reaction tank 5 is flat and is arranged in a horizontal "凵" shape as a whole, which can increase the heat exchange effect.

[0023] As an optimized solution, it also includes a buffer pool. The buffer pool is connected to the drainage port of the sedimentation tank 213 through a delivery pipe, and a water pump is installed on the delivery pipe. The buffer pool can discharge a part of the water when there is more water in the sedimentation pool 3 for future use (not shown in the figure, but this does not affect those skilled in the art's understanding and implementation of the present utility model).

[0024] The above has described the embodiments of the present utility model in detail in conjunction with the accompanying drawings, but the present utility model is not limited to the described embodiments. For those skilled in the art, without departing from the principle and spirit of the present utility model, various changes, modifications, substitutions and variations to these embodiments still fall within the protection scope of the present utility model.

Claims

1. A sewage circulation treatment system for steel bar production, characterized in that: It includes a sewage collection tank, a sedimentation ladder assembly and a sedimentation tank. The sewage collection tank is installed at the top of the sedimentation ladder assembly, and the sedimentation tank is installed at the bottom of the sedimentation ladder assembly. An overflow notch is provided on the top side of the sewage collection tank facing the sedimentation ladder assembly. The sedimentation ladder assembly is composed of several sedimentation ladders connected end to end. The top of each sedimentation ladder is an inclined guide plate. The lower end of the guide plate is connected to an inward concave arc plate vertically. The bottom end of the arc plate is connected to a forward inclined baffle to form a sedimentation tank at the bottom. The baffle is connected to the guide plate of the next sedimentation ladder. The inside of the sedimentation tank is divided into an activated sludge reaction tank by a partition board.

2. The sewage circulation treatment system for steel bar production according to claim 1 is characterized in that: The bottom of the sedimentation tank is processed into a semi-circular groove.

3. The sewage circulation treatment system for steel bar production according to claim 1 is characterized in that: The inclination angle of the guide plate is 15-20 degrees.

4. The sewage circulation treatment system for steel bar production according to claim 1 is characterized in that: The activated sludge reaction tank is flat and is arranged in a horizontal "U" shape as a whole.

5. The sewage circulation treatment system for steel bar production according to claim 1 is characterized in that: It further includes a buffer tank. The buffer tank is connected to the drain outlet of the sedimentation tank through a delivery pipe, and a water pump is installed on the delivery pipe.

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