Complete hybrid aeration and precipitation pool training table

1. Through the operation of the system, you can deepen the understanding of the characteristics and operation of the processing system.

2. Familiar with and understand the control method of active sludge h--r treatment system. Further understand the control parameters such as sludge load, sludge order, and dissolving oxygen concentration and the role and significance in actual operation.

2. Working principle:

Active sludge is one of the m--n methods of sewage treatment. Judging from the current status of sewage treatment at home and abroad, most urban sewage and almost all industrial wastewater are treated with active sludge. Therefore, this experimental method is particularly important.

The active sludge treatment system is fully mixed with mixed aeration sedimentation tank. It has the advantages of strong resistance to impact load, uniform water quality in the aeration tank, balanced oxygen demand, equal sludge load, similar microorganisms and low motion consumption, but but but Microorganisms have low degradation to organic matter, which is prone to expansion of sludge, and the water out of water is slightly worse.

3. Complete hybrid aeration pool:

Fully hybrid aeration tanks often use impeller oxygen supply, mostly round, square or polygonal pools, which are suitable for the range of the impeller. Change the diameter of the impeller can adapt to different diameter (length) and different depth pools. The rectangular aeration pool can be divided into a series of square units that are connected to each other, and each unit is set with a impeller.

4. M--n technical indicators and parameters:

1. Environmental temperature: 5 ℃ ～ 40 ℃

2. Treatment of water: 20 ～ 30L/h

3. Puzzle uses copper pump -shaped impeller: D = 100

4. Leaf wheel speed: (can be adjusted at any speed) 50 ～ 60R/min

5. Sewage stay in the pool: 4-6h

I. Overview

 

The comprehensive tr--ning assessment device of the machine tool is the teaching, tr--ning, internship, assessment, and skills of various vocational colleges and social electrical engineering assessment, as well as the teaching, tr--ning, internships, assessment and skills of various cities, counties, and national vocational and technical appr--sers (stations). Tr--ning assessment device for appr--sal and research and development. Because the device uses all actual industrial appliances, it is reliable and long. The device is beautiful, convenient to operate, and has strong intuitiveness. It can not only be used for classroom demonstrations, tr--ning, and internships of relevant courses, but also can be used as tr--ning skills for machine tool electrical control line m--ntenance skills. In addition, it can also provide all -round and realistic machine tool electrical f--lure elimination skills tr--ning, effectively improve students' m--ntenance skills for machine tool equipment.

 

2. Features

 

1. This device uses a standard power distribution cabinet as the m--n cabinet, which makes full use of the two -sided space location of the cabinet. Its distribution cabinet combines the electrical lines of the two machine tools into one, so it has the characteristics of small land, beautiful appearance, and high economic benefits. Essence

2. Strong intuitiveness, you can be familiar with the principles and characteristics of the electrical control line of the machine.

3. Control lines for skill tr--ning and specially designed motors can simulate the electrical lines of various actual machine tools, and can also meet the tr--ning requirements of electrical f--lure analysis and exclusion of the machine tool.

4. The switching of two machine tool circuits can be achieved through a conversion switch, which is convenient and fast.

5. You can set the fault point artificially, as long as it is switched to switch.

6. The power distribution cabinet has a voltage leakage protector and a current leakage protector to ensure the safety of the operator. In addition, there is a timer and alarm recorder (service manager), which provides a unified standard for the students' assessment.

 

3. Technical parameters of machine tool electrical skills tr--ning assessment cabinets

 

1. Input voltage: three -phase and four -line ～ 380V ± 10% 50Hz 50Hz

2. Working environment: The environment temperature range is -5 ℃ ～+40 ℃, and relative humidity is <85%(25 ℃)

3. Device capacity: <1.5kva

4, appearance size: 800mm × 600mm × 1800mm

5. Equipment weight: 200kg

6. Cabinet material: 2mm cold -rolled steel in the m--n part, 1.2mmm cold rolled steel in other parts.