Oil separation lifting device

1、 Introduction

The oil separation lifting device is widely used for the lifting and discharge of pre treated catering wastewater in various underground catering areas, as well as for the treatment of other catering wastewater that cannot flow to the above ground oil separation tank and needs to be lifted and discharged. And the quality of the raw water must meet the following conditions:

1The density of animal and vegetable oils contained in catering wastewater is0.9g/cm3～0.95g/cm3；

2Oil content ≤300mg/L;

3TheSSConcentration ≤285mg/L；

4The water temperature of catering wastewater is ≥10℃；

The oil content of catering wastewater treated by oil separation lifting equipment is ≤50mg/L(Superior to national standards)100mg/L），SSConcentration ≤120mg/L.

Effectively remove the proportion of content in oil products80%The floating oil and15%Emulsified oil, oil content in effluent30mg/L, higher than the national standard3Twice.

2、 How to control the generation and spread of odors?

Causing cateringOil separation equipmentThe fundamental reason for the foul odor is that food waste is not cleaned up in a timely manner, and after entering the oil-water separation chamber, it undergoes long-term fermentation, resulting in the production of fatty acids and causing foul odor. The oil separation lifting equipment has undergone three-level treatment in the early stage to completely eliminate the odor source, and with sealing and ventilation measures, it has truly created a conscientious product that is odorless, environmentally friendly, and reliable.

3、 How to discharge grease?

The integrated oil separation lifting equipment completely overturns the traditional three-stage oil separation that requires manual salvage in terms of design concept. It uses the asymmetric conical structure above the oil-water separation zone to concentrate the oil, and then uses a chain automatic oil discharge mechanism to discharge it into a dedicated closed oil drum for centralized transportation. There is no need for manual salvage of floating oil and emulsified oil, and the operating cost is low and the efficiency is high. The equipment comes with a constant temperature electric heating device, which avoids the disadvantage of animal fat solidification and smooth discharge; The equipment also comes with a manual oil discharge device

4、 How does the control system work?

The intelligent management and control system of the oil separation lifting equipment adoptsPCUControlled by a microcontroller, the operating status is displayed in Chinese, and its biggest highlight is the process control: it automatically starts the slag removal machine, oil discharge device, heating device, and drainage device when there is a processing demand according to the processing requirements, without causing waste of power resources. The system adopts highly sensitive magnetic liquid level detection The device is equipped with multi-point monitoring, automatic alarm, overload and short circuit protection, and signal remote transmission（BAInterface, water pump water shortage protection and other functions.

5、 Component Introduction

1.Primary debris cleaning device

Innovative design and application of spiral conveyor type debris separator have achieved efficient automatic separation and collection of debris, eliminating the labor of manual cleaning of debris, clean and environmentally friendly (patent number:ZL 2013 2 0220424.X）.

2.Secondary sludge discharge device

Specially designed sludge hopper, with a capacity matching the garbage bin design, allows sludge to be emptied into the lower sludge bin at once, making sludge discharge more convenient and sludge bin transportation more convenient

3.Third level sludge discharge device

In order to avoid timely discharge of secondary sludge, which may cause sludge to enter the oil-water separation zone, a three-stage conical sludge collection and discharge device is specially installed; Therefore, the safety hazards of the equipment are eliminated, and the safe and trouble free operation time is guaranteed.

4.Four stage oil-water separation device

The corridor style hydraulic model structure increases the length of the water flow channel compared to traditional equipment3Twice. Regardless of the peak or low peak of drainage, no main channel will be formed, and the oil-water retention time and flow rate are guaranteed. The equipment is equipped with an automatic constant temperature device, and the oil-water separation effect is better than that of ordinary equipment3times

5.Automatic sewage discharge device

After separation, the sewage flows into the sewage lifting tank through the water flow guide device. When the sewage in the tank rises to a high level, the water pump automatically starts to drain; When the water level drops to the hydraulic level, the water pump automatically shuts off: when the lifting pump is designed as a built-in type, a submersible sewage pump is used; When designed as an external type, a vertical dry sewage pump is used.

6、 Frequently Asked Questions

What kindOil separation lifting equipmentIs it a good device?

1No odor: Due to chemical and biochemical reactions, the oil sediment in the equipment will gradually decompose over time and generate corrosive fatty acids, which will produce a very unpleasant odor and corrode the equipment.
2Remove grease from catering wastewater, prevent grease and solid substances from blocking drainage pipes, protect the environment, and ensure that the water quality meets the discharge requirements of relevant national and local regulations (oil content in effluent)≤100mg/L）Ensure smooth drainage system.

3Centralize the collection and treatment of waste oil, vegetable rice residue, suspended solids, and solid residues, and recycle waste oil.4The equipment has strong adaptability, can operate continuously, stably, reliably and safely, and has extremely low operating costs.

Common processes and analysis of advantages and disadvantages of △ oil separation lifting equipment

Although catering wastewaterOil separation lifting equipmentThere are various processing techniques, but they can be basically classified into three categories: gravity separation, air flotation, and adsorption filtration. They can also be combined and innovated according to needs.

1The oil removal rate of air flotation is higher than that of gravity separation. It can not only remove floating oil and dispersed oil, but also remove a certain amount of emulsified oil, and the effluent quality is good. Its disadvantages are relatively complex equipment, high operational management requirements, power supply, and exhaust emissions.

2The advantages of gravity separation are that the equipment is relatively simple, the cost is low, the operation and management requirements are simple, and the processing technology itself does not require power supply. Removable particle size60μmMost of the solid particles in the floating oil and wastewater mentioned above.

3The effluent quality of adsorption filtration is good, but the filter element needs to be replaced, backwashed or regenerated regularly. Therefore, gravity separation classOil separation equipmentIt is the most economical and cost-effective option.