Sewage treatment system for underground concrete mixing plant

Abstract

The utility model belongs to the technical field of sewage treatment equipment of concrete mixing plants, and relates to an underground sewage treatment system for a concrete mixing plant, which comprises a ground screen, the bottom of the ground screen is connected with a water collecting chute, the other end of the water collecting chute is connected to a sandstone separator, and an aggregate belt conveyor is arranged on the rear side of the sandstone separator. An overflow pipeline is arranged at an overflow port in the side surface of the sand-gravel separator and is connected to the rotational flow tank; and two sides of the rotational flow tank are respectively connected with a 1 # sewage stirring tank and a 2 # sewage stirring tank. According to the utility model, the sewage separation efficiency is improved, the labor workload is reduced, and the whole sewage treatment system realizes automatic control.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewage treatment equipment for concrete mixing stations, and in particular relates to a sewage treatment system for a concrete mixing station arranged underground. Background Art

[0002] The sewage treatment system for concrete mixing plants is mainly used to treat wastewater and mud generated during the concrete mixing process to achieve the purpose of environmental protection and resource recycling, reduce environmental pollution, reduce water costs, realize the recycling of water resources, reduce the discharge of solid waste, and comply with national and local environmental protection laws and regulations.

[0003] The sewage treatment system for the concrete mixing plant is arranged in the production area. The mixer trucks transporting concrete are filled with water and washed in this area, and then the sewage is unloaded into the sewage treatment system. The sewage generated by the production and cleaning of the concrete mixing plant is pumped to the sewage treatment system through ground pipes or collection tanks for treatment.

[0004] When sewage is discharged from ground pipes for a long time, silt will settle and the pipes need to be cleaned regularly, which is a lot of work. The water collection pool will also settle and need to be cleaned manually. The waste generated during the manual cleaning process also needs to be handled separately, which cannot meet the requirement of zero sewage discharge in the production area. There is no specific solution to this problem of large-scale manual cleaning and failure to meet the requirement of zero waste discharge.

[0005] Therefore, a sewage treatment system for an underground concrete mixing plant is proposed. Utility Model Content

[0006] The purpose of the utility model is to provide a sewage treatment system for an underground concrete mixing station, which improves operational safety, stability and equipment reliability, saves manpower, realizes automatic treatment of sewage and waste residue with zero discharge, and solves the problem of sewage collection and recycling generated by mixing plants and mixing trucks in the prior art.

[0007] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is that the utility model provides a sewage treatment system for an underground concrete mixing station, including a ground screen, the bottom of the ground screen is connected to a water collection chute, the other end of the water collection chute is connected to a sand and gravel separator, an aggregate belt conveyor is arranged on the rear side of the sand and gravel separator, an overflow pipe is arranged at the overflow port on the side of the sand and gravel separator, and is connected to a cyclone pool, and the cyclone pool is respectively connected to a 1# sewage mixing tank and a 2# sewage mixing tank on both sides.

[0008] Preferably, the ground screen, water collection chute, sand and gravel separator and aggregate belt conveyor are arranged below the zero plane of the mixing station.

[0009] Preferably, a cyclone separator is provided on the top of the cyclone pool.

[0010] Preferably, a 1# water supply pump and a 2# water supply pump are respectively disposed inside the 1# sewage mixing tank and the 2# sewage mixing tank.

[0011] Preferably, an aggregate yard is provided at the rear side of the aggregate belt conveyor.

[0012] Preferably, a cyclone water pump is provided inside the cyclone pool.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] 1. The utility model improves the sewage separation efficiency, reduces the manpower workload, and realizes automatic control of the entire sewage treatment system;

[0015] 2. The utility model improves operational safety, stability and equipment reliability, saves manpower, realizes automatic treatment of sewage and waste residue with zero discharge, and solves the problem of sewage collection and recycling generated by mixing plants and mixing trucks in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor.

[0017] Figure 1 A side view of a sewage treatment system for an underground concrete mixing plant;

[0018] Figure 2 A top view of a sewage treatment system for an underground concrete mixing plant;

[0019] Figure 3 It is a partial diagram of a sewage treatment system for an underground concrete mixing plant;

[0020] Figure 4 It is a partial diagram of a sewage treatment system for an underground concrete mixing plant;

[0021] In the above figures, 11, ground screen, 12, water collection chute, 13, sand and gravel separator, 14, aggregate belt conveyor, 15, aggregate yard, 21, overflow pipe, 22, cyclone tank, 31, 1# water supply pump, 32, cyclone water pump, 33, 2# water supply pump, 34, cyclone separator, 35, 1# sewage mixing tank, 36, 2# sewage mixing tank. DETAILED DESCRIPTION

[0022] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0024] Embodiment 1, as Figure 1-4 As shown, a sewage treatment system for an underground concrete mixing plant includes a ground screen 11. The ground screen 11 performs preliminary filtration and can filter large particles and debris in the sewage to prevent these substances from entering subsequent treatment equipment and affecting the operating efficiency of the equipment. The bottom of the ground screen 11 is connected to a water collection chute 12, which can divert and collect the sewage and transport it.

[0025] The other end of the water collection chute 12 is connected to a sand and gravel separator 13, which is used to separate sand and gravel, and separate sand and gravel from other particulate matter in sewage, thereby improving the initial efficiency of sewage treatment and reducing the burden of sludge treatment. An aggregate belt conveyor 14 is arranged on the rear side of the sand and gravel separator 13, and the sand and gravel separator 13 separates sand and gravel aggregates, which are transported by the aggregate belt conveyor 14, and the aggregates are stored and reused.

[0026] An overflow pipe 21 is arranged at the overflow port on the side of the sand and gravel separator 13 and connected to the cyclone pool 22. After the sewage falls into the sand and gravel separator 13, as the liquid level rises, the sewage will flow from the overflow port on the side of the sand and gravel separator 13 through the overflow pipe 21 to the cyclone pool 22. The cyclone effect is used to further separate the particles and suspended matter in the sewage, which can effectively purify the sewage. The overflow pipe 21 introduces the overflow water of the sand and gravel separator 13 into the cyclone pool 22 for further treatment, thereby ensuring the continuous treatment of the sewage and preventing the leakage of the overflow water.

[0027] The two sides of the cyclone pool 22 are respectively connected to a 1# sewage stirring pool 35 and a 2# sewage stirring pool 36 , and the 1# sewage stirring pool 35 and the 2# sewage stirring pool 36 temporarily store the sewage separated by the cyclone pool 22 .

[0028] The following is a detailed description of the design of the above key components:

[0029] A cyclone separator 34 is disposed on the top of the cyclone pool 22. The cyclone separator 34 is used to further separate tiny particles and suspended matter in the sewage, thereby improving the sewage purification effect.

[0030] The 1# sewage mixing tank 35 and the 2# sewage mixing tank 36 are respectively provided with a 1# water supply pump 31 and a 2# water supply pump 33. The water in the 1# sewage mixing tank 35 and the 2# sewage mixing tank 36 is pumped to the concrete mixing station production system as production water through the 1# water supply pump 31 and the 2# water supply pump 33.

[0031] An aggregate yard 15 is arranged at the rear side of the aggregate conveyor 14. The aggregate yard 15 is used to store the reusable aggregate separated by the sand and gravel separator 13, so as to realize the recycling and reuse of resources and reduce waste.

[0032] The cyclone pool 22 is provided with a cyclone water pump 32. After the sewage flows into the cyclone pool 22, the cyclone water pump 32 starts to pump the sewage to the cyclone separator 34, and the cyclone separator 34 separates the sewage into fine sand, and the separated fine sand flows into the sand and gravel separator 13.

[0033] The ground screen 11, water collection chute 12, sand and gravel separator 13 and aggregate conveyor 14 are arranged below the zero plane of the mixing station. The sewage generated by the concrete mixing station and the sewage from the concrete mixer truck are dumped on the zero plane, and flow to the ground screen 11 at a lower position through the ground slope. After the large stones are filtered out by the ground screen 11, the sewage flows into the sand and gravel separator 13 through the water collection chute 12; the sand and gravel separator 13 is started to push the sand and gravel aggregates from the front end to the aggregate conveyor 14, and the aggregate conveyor 14 transports the sand and gravel aggregates to the aggregate yard 15, and then the loader transports the sand and gravel aggregates to the sand and gravel yard for reuse. The sewage and the separated sand and gravel aggregates are reused to achieve the purpose of zero discharge.

[0034] The standard parts used in the utility model can all be purchased from the market, special-shaped parts can be customized according to the description in the specification and the drawings, the specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art, the machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0035] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A sewage treatment system for an underground concrete mixing plant, characterized in that: It includes a ground screen, the bottom of which is connected to a water collection chute, the other end of which is connected to a sand and gravel separator, an aggregate belt conveyor is arranged at the rear side of the sand and gravel separator, an overflow pipe is arranged at the overflow port on the side of the sand and gravel separator and connected to a cyclone pool, and the two sides of the cyclone pool are respectively connected to a 1# sewage mixing tank and a 2# sewage mixing tank.

2. The sewage treatment system for an underground concrete mixing station according to claim 1, characterized in that: The ground screen, water collection chute, sand and gravel separator and aggregate belt conveyor are arranged below the zero plane of the mixing station.

3. The sewage treatment system for an underground concrete mixing station according to claim 1, characterized in that: A cyclone separator is arranged on the top of the cyclone pool.

4. The sewage treatment system for an underground concrete mixing station according to claim 1, characterized in that: The 1# sewage mixing tank and the 2# sewage mixing tank are respectively provided with a 1# water supply pump and a 2# water supply pump.

5. The sewage treatment system for an underground concrete mixing plant according to claim 1, characterized in that: An aggregate storage yard is arranged at the rear side of the aggregate belt conveyor.

6. The sewage treatment system for an underground concrete mixing plant according to claim 3, characterized in that: A cyclone water pump is arranged inside the cyclone pool.

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