Pneumatic conveying systems and traditional methods of delivery compared with
Comparison Program
Kind
Pneumatic Conveying
Air tank
Water transportation
Conveyor
Chain conveyor
Screw conveyor
Bucket Elevator
Vibration conveyor
Granular materials have been delivered Drive/mm
< 30
-
< 30
No special restrictions
< 50
< 30
< 100
< 30
Delivery of materials was the highest temperature/℃
600
80
80
80 ordinary tape Heat-resistant adhesive tape 180
300
300
80
80
Pipeline angle / (°)
Arbitrary
Down4-10
Arbitrary
0-40
0-90
0-90
90
0-90
The largest transmission capacity/t·h-1
500-1000
300
200
3000
300
300
600
10
Maximum transmission distance/m
1000
200
10000以上
8000
200
10
50
10
The necessary power consumption
Slightly
Small
Big
Small
Big
volume
Small
Big
Maximum transmission speed/m·s-1
0-35
30-120
120-360m/min
15-180m/min
10-30
20-100r/min
20-40
-
Transport materials from blowing
Nothing
Nothing
Nothing
May
Nothing
Nothing
Nothing
May
Mixed with foreign bodies and defaced
Nothing
Nothing
Nothing
May
Nothing
Nothing
Nothing
Nothing
Residual materials transportation
A very small number of
A very small number of
Nothing
Nothing
Have
Bit
Have
Have
Pipeline configuration flexibility
Freedom
straight line
Freedom
straight line
straight line
straight line
straight line
straight line
The possible diversion
Easy
May
Easy
May
Difficult
don’t
don’t
Difficult
Section occupy space
Small
volume
Small
Big
Big
volume
Big
Big
The main part of overhaul
Pipe, valves
-
Pipe, valves
Roll up, bearing
Chains, bearings
all
Chains, bearings
all
Pneumatic conveying the strengths and weaknesses From the pneumatic conveying and application mechanism of transmission of the practice are that it has a number of advantages: high transmission efficiency, the overall structure of the equipment is relatively simple, maintenance friendly, easy to automate, and is conducive to environmental protection. In particular the factory floor for internal transport, process and transport could be combined with production technology to help simplify the process equipment. To do this, can greatly improve productivity, reduce costs and reduce the area of space. To sum up, pneumatic conveying the following characteristics: 1) pipeline to transport layout flexibility, so that a reasonable allocation of plant equipment technology. ……Click here to regist or click here contact us. However, when compared with other forms of transportation, the drawback is……Click here to regist or click here contact us.
Sending smoke and send-pressure pneumatic conveying equipment comparative strengths and weaknesses
In the form of transportation
Advantages
Shortcomings
Practical occasions
Send-smoking
1. Easier to get information, check the requirements applicable to the material does not produce dust occasions 2. Applicable from the low, narrow and deep or take, as well as material from several points to a focus on feeding the occasion……Click here to regist or click here contact us.
1. Feed the more-difficult to send smoke, should be to deal with the physical properties of materials transportation and distribution and design parameters to choose the right device for ……Click here to regist or click here contact us.
1. Is a closed-pressure vessel’s position to send, as if in a row in the delivery system should be sent before the Department tanks set up in the middle storage hopper ……Click here to regist or click here contact us.
Pneumatic Conveying state classification According to the pneumatic conveying state, in the gas-flow, the movement of materials will be delivered as the wind speed changes in the amount of change. When high-speed materials, materials in a state of suspension, was distributed by air-transport; With the delivery of wind speed decreased to reunite the beginning of materials;, some of the material gathered in the pipeline, the group was dynamic pulse transmission; to continue to reduce the transmission speed, Materials to plug cross-section, the formation of the expected instability in the bolt, the bolt was then expected to promote the air pressure; further reduce the transmission speed, the instability of the bolt material will be the expected stability of the bolt from the pressure of air transport to promote. That in the vertical tube materials were distributed and the limits of the level of control in flight transmission of the limits of the material is thin and dense phase boundaries. Therefore, the speed of the economic line can be seen as dense and dilute phase of the demarcation line. As a result, can be summed up in the entire pneumatic conveying systems can be divided into four categories: 1. Dilute phase pneumatic conveying a higher rate of flow, ……Click here to regist or click here contact us. 2. Dense phase pneumatic conveying of materials in the……Click here to regist or click here contact us. 3. Bolt flow pneumatic conveying such a transfer ……Click here to regist or click here contact us. 4. Assembled container-loading by pneumatic conveying ……Click here to regist or click here contact us.
