CN218232103U - A wastewater pretreatment device - Google Patents

Abstract

The utility model discloses a waste water pretreatment device, which comprises a box body and sequentially connected disinfection units, filter units and adjustment units arranged in the box body, the disinfection unit is connected with a waste water collection pipe, and the waste water collection pipe includes a first A branch pipe, a second branch pipe and a connecting piece, the connecting piece includes a connecting elbow, the two ends of the connecting elbow are respectively detachably and fixedly connected with the first branch pipe and the second branch pipe, and the two ends of the connecting elbow are also provided with There is a lining net, and the two lining nets respectively extend into the first branch pipe and the second branch pipe and are arranged close to the inner wall of the branch pipe, and the bottom of the connecting elbow is provided with a sewage outlet. The utility model has a unique structure, high integration, compact structure, and can effectively prevent pipeline blockage, effectively prolong the service life of the equipment, its treatment is efficient, can well reduce the toxicity and concentration of laboratory wastewater, and adjust pH to reduce corrosiveness , to better meet the pretreatment needs of laboratory wastewater.

Description

A wastewater pretreatment device

technical field

The utility model relates to the technical field of waste water treatment equipment, in particular to a waste water pretreatment device applied in laboratories.

Background technique

According to the nature of the main pollutants contained in laboratory wastewater, it can be divided into three categories: organic wastewater, inorganic wastewater and wastewater containing pathogenic microorganisms. The inorganic wastewater mainly contains heavy metals, heavy metal complexes, acids and bases, and other inorganic ions. The wastewater contains common organic solvents, organic acids, oils, etc., and the wastewater containing pathogenic microorganisms is mainly biological culture fluid, culture medium and a small amount of flushing water for experimental equipment.

Laboratory wastewater has the characteristics of small amount, strong discontinuity, complex and changeable composition, and high hazard. If it is discharged directly, it will cause great environmental pollution and pose a greater risk. The Chinese patent with the application number 201810754599.6 discloses a comprehensive laboratory wastewater treatment system and method, which includes a sequentially connected pretreatment unit, a neutralization adjustment tank, a hydrolytic acidification tank, an aerobic MBBR tank, a sedimentation tank, and a disinfection tank. It adopts "sorted collection + hydrolytic acidification + aerobic MBBR + chlorine dioxide disinfection treatment process". This technical solution can greatly improve the treatment effect of laboratory wastewater. However, the equipment cost is high and the land occupation is large, so the practical application in the laboratory is limited. In addition, because there are many pollutants and high concentration in the laboratory sewage, the pipeline for collecting wastewater is easy to be blocked during long-term use. Therefore, this experimental device aims to develop a pretreatment device for laboratory wastewater to better meet actual needs.

Utility model content

The technical problem solved by the utility model is to provide a wastewater pretreatment device to solve the above-mentioned shortcomings in the background technology.

The technical problem solved by the utility model adopts the following technical solutions to realize:

A wastewater pretreatment device, comprising a box body and sequentially connected disinfection units, filter units and adjustment units arranged in the box body, the disinfection unit is connected to a waste water collection pipe, and the waste water collection pipe includes a first branch pipe and a second branch pipe And a connecting piece, the connecting piece includes a connecting elbow, the two ends of the connecting elbow are respectively detachably and fixedly connected with the first branch pipe and the second branch pipe, and the two ends of the connecting elbow are also provided with lining nets. The lining nets respectively extend into the first branch pipe and the second branch pipe and are arranged close to the inner walls of the branch pipes, and the bottom of the connecting elbow is provided with a sewage outlet.

In the utility model, the lining net is a hollow cylindrical structure made of corrosion-resistant materials.

In the utility model, the disinfection unit is also connected with the ozone delivery pipe.

In the utility model, the top of the filter unit is provided with a water inlet pipe connected to the disinfection unit, the water inlet pipe is provided with a plurality of water outlets, and the bottom of the water outlets is correspondingly provided with a buffer plate with a honeycomb structure.

In the utility model, a multi-layer filter layer is arranged in the middle part of the filter unit, and the pore diameters of the filter layers decrease successively from top to bottom.

In the utility model, the adjustment unit is provided with a drain port, and the adjustment unit is also provided with a plurality of drug feeding ports.

In the utility model, a stirring device is arranged in the disinfection unit and the adjustment unit.

In the utility model, both the disinfection unit and the inner bottom of the filter unit are provided with micro-submersible pumps.

Beneficial effects: the wastewater pretreatment device described in the utility model has a high degree of integration, a compact structure, and a small footprint, and can perform preliminary treatment such as efficient disinfection, filtration, and regulation on the wastewater generated in the laboratory, effectively reducing Its toxicity and subsequent treatment difficulty. The unique design of the waste water collection pipe in the waste water pretreatment device described in the utility model can effectively prevent the waste water collection pipe from being blocked, prolong the service life of the waste water collection pipe, and better meet actual needs.

Description of drawings

Fig. 1 is a schematic diagram of a preferred embodiment of the present invention.

Fig. 2 is a structural schematic diagram of the connector in a preferred embodiment of the present invention.

Among them: 1. Disinfection unit; 2. Filter unit; 3. Adjustment unit; 4. Box body; 5. Control box; 6. First branch pipe; 7. Connecting elbow; 8. Second branch pipe; 10. Stirring device; 11. Ozone delivery pipe; 12. Outlet; 13. Dosing port; 14. Micro submersible pump; 15. Filter layer; 16. Water inlet pipe; 17. Buffer plate.

detailed description

In order to make the technical means, creative features, goals and effects achieved by the utility model easy to understand, the utility model will be further elaborated below in conjunction with specific illustrations.

Referring to a kind of waste water pretreatment device described in Fig. 1, comprise box body 4 and the disinfection unit 1, filter unit 2 and adjustment unit 3 that are arranged in sequence connected in the box body 4, disinfection unit 1, filter unit 2 and adjustment unit 3 are arranged side by side in the box body 4 and are separated by vertical partitions.

The disinfection unit 1 is connected to a waste water collection pipe, and the waste water collection pipe includes a first branch pipe 6, a second branch pipe 8 and a connector. Preferably, the first branch pipe 6 and the second branch pipe 8 are vertically staggered, and the connection Components include a connecting elbow 7, as shown in Figure 1 and Figure 2, the two ends of the connecting elbow 7 are respectively detachably and fixedly connected with the first branch pipe 6 and the second branch pipe 8, in some embodiments, the connecting elbow The two ends of 7 are clamped with the first branch pipe 6 and the second branch pipe 8 respectively and fixed by nuts, so as to facilitate installation and disassembly. The two ends of the connecting elbow 7 are also provided with lining nets, and the two lining nets respectively extend into the first branch pipe 6 and the second branch pipe 8 and are attached to the inner walls of the branch pipes. The length of the lining nets is preferably the same as The lengths of the first branch pipe 6 and the second branch pipe 8 are the same. In some preferred embodiments, the lining net is a hollow hollow cylindrical structure made of corrosion-resistant materials, and the outer diameter of the hollow cylinder is slightly smaller than the The inner diameters of the first branch pipe 6 and the second branch pipe 8. Therefore, in practical applications, after the high-concentration sewage passes through the waste water collection pipe, the internal impurities are partially deposited on the liner, which has a certain deposition effect and can prevent the sediment from directly contacting the first or branch pipe 6 and the second branch pipe 8 Inner wall contact. And the liner can be cleaned regularly as the connecting elbow 7 is taken out from the first branch pipe 6 or the second branch pipe 8, thereby effectively preventing the waste water collection pipe from being stuck to the wall by sediments during long-term use, causing the waste water to become thinner and smaller. The occurrence of clogging can effectively prolong the service life of the waste water collection pipe and the overall equipment. The bottom of the connecting elbow 7 is provided with a sewage outlet 9, and the waste residue deposited on the bottom of the connecting elbow 7 can be discharged through the slag outlet.

The disinfection unit 1 is also connected with the ozone delivery pipe 11, and the waste water is preliminarily disinfected by sampling to reduce the toxicity of the waste water. A stirring device 10 is provided at the bottom of the disinfection unit 1 to further ensure the disinfection effect.

The bottom of the disinfection unit 1 is also provided with a micro-submersible pump 14, and the micro-submersible pump 14 transports the sterilized waste water to the top of the filter unit 2, and the top in the filter unit 2 is provided with a micro-submersible pump 14 connected to the disinfection unit 1. The water inlet pipe 16 is provided with a plurality of water outlets on the water inlet pipe 16, and the plurality of water outlets are evenly distributed along the width direction of the filter unit 2. The bottom of the water outlet is correspondingly provided with a buffer plate 17, and the buffer plate 17 is a honeycomb structure. The combination of multiple water outlets and the buffer plate 17 redistributes the waste water and enters the filter layer 15 more evenly, thereby making full use of the filter layer 15 and making the waste water have a more sufficient filtering effect, solving the problem of traditional In the technical solution, the filtering layer 15 only has the disadvantage of partial utilization. As an improvement, a multi-layer filter layer 15 is arranged in the middle of the filter unit 2, and the filter pore diameters of the filter layers 15 decrease successively from top to bottom. While fully guaranteeing the filtration quality, the filtration efficiency is guaranteed.

A micro-submersible pump 14 is also arranged at the bottom of the filter unit 2 , and the micro-submersible pump 14 transports the filtered waste water in the filter unit 2 to the regulating unit 3 . The regulating unit 3 is provided with a drain port 12 , and the regulating unit 3 is also provided with a plurality of drug feeding ports 13 . Therefore, according to the type of actual wastewater, PH regulators, precipitants and other agents can be added. Correspondingly, a pH sensor and a concentration sensor can be installed inside the adjustment unit 3, and the type of medicine to be added is determined according to the data fed back by the sensor before adjustment, and whether the adjustment is completed and discharged is determined according to the data fed back by the sensor after adjustment. In order to ensure sufficient reaction between the wastewater and the medicament during the adjustment, the adjustment unit 3 is also provided with a stirring device 10 .

As an improvement, the pretreatment device also includes a control box 5, the stirring device 10, the micro-submersible pump 14, the pH sensor and the concentration sensor, etc. are all electrically connected to the control box 5, and the control box 5 is also provided with a display The screen is used to display the data such as pH and concentration of the wastewater in the adjustment unit 3 in real time, which is convenient for the operator to further operate.

The basic principles, main features and advantages of the present utility model have been shown and described above. Those skilled in the industry should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model The new model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims (8)

1. The utility model provides a pretreatment of waste water device, its characterized in that includes the box and sets up disinfection unit, filter unit and the regulating unit who connects gradually in the box, disinfection unit connection waste water collecting pipe, waste water collecting pipe includes first branch pipe, second branch pipe and connecting piece, the connecting piece is including connecting the elbow, the both ends of connecting the elbow respectively with fixed connection can be dismantled to first branch pipe and second branch pipe, the both ends of connecting the elbow still are provided with the lining net, two the lining net extends to respectively the inner wall setting of the branch pipe of laminating in first branch pipe and the second branch pipe, the bottom of connecting the elbow sets up the drain.

2. The wastewater pretreatment device of claim 1, wherein the backing screen is a hollowed-out hollow cylindrical structure made of a corrosion resistant material.

3. The wastewater pretreatment device of claim 1, wherein the disinfection unit is further connected to an ozone delivery line.

4. The wastewater pretreatment device of claim 1, wherein a water inlet pipe connected with the disinfection unit is arranged at the top of the inside of the filtration unit, a plurality of water outlets are arranged on the water inlet pipe, and buffer plates are correspondingly arranged at the bottoms of the water outlets and have a honeycomb structure.

5. The pretreatment device of claim 4, wherein a plurality of filter layers are arranged in the middle of the filter unit, and the pore diameters of the filter layers are gradually decreased from top to bottom.

6. The wastewater pretreatment device of claim 1, wherein the conditioning unit is provided with a water outlet and a plurality of dosing ports.

7. The wastewater pretreatment device of claim 1, wherein stirring devices are disposed in the disinfection unit and the conditioning unit.

8. The wastewater pretreatment device of claim 1, wherein a micro-submersible pump is disposed at the bottom of the disinfection unit and the filtration unit.

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