负压输送的优点：

Advantages of negative pressure conveying:

优点1，去料无粉尘，输送无粉尘

Advantage 1: there is no dust in material removal and transportation

2、适用于散状，低洼处，破袋等输送场合

2. Suitable for bulk, low-lying places, broken bags and other transportation occasions

3、气源在最末端，润滑油，水分等不会混入

3. The air source is at the end, and lubricating oil and water will not be mixed

4、管道中呈现负压真空状态，物料不会泄露

4. There is negative pressure and vacuum in the pipeline, and the materials will not leak

5、空气处理方便，适合于要求洁净空气输送的场合

5. Convenient air handling, suitable for occasions requiring clean air transmission

6、适用于有多处向一处集中输送

6. It is suitable for centralized transportation from multiple places to one place

正压输送的优点：

Advantages of positive pressure conveying:

优点1、输送过程中气体温度可干燥物物料

Advantage 1. The gas temperature can dry the material during transportation

2、系统内部是正压，物料易卸出

2. The internal pressure of the system is positive, and the materials are easy to unload

3、管道中呈正压状态，系统连接处即使有缝隙外界大气，雨水也不会对管道中物料产生影响

3. In the positive pressure state in the pipeline, even if there is a gap at the system connection, the external atmosphere, rainwater will not affect the materials in the pipeline

4、相比负压输送，耗能要低，可输送距离要长

4. Compared with negative pressure conveying, the energy consumption is lower and the conveying distance is longer

负压输送的缺点：

Disadvantages of negative pressure conveying:

缺点1、一般工作真空度小于0.06MPa,故输送量和输送

Disadvantages 1. Generally, the working vacuum is less than 0.06mpa, so the conveying capacity and conveying pressure are different

距离不能同时取得更大 值

Distance cannot be maximized at the same time

2、相比于正压输送，负压要比正压耗大

2. Compared with positive pressure conveying, negative pressure consumes more than positive pressure

3、料气分离前要设置性能可靠的分离和除尘装置

3. Separation and dust removal devices with reliable performance shall be set before material gas separation

4、对分离器下的卸料器要求很高，密封不好泄露都

4. The requirements for the unloader under the separator are very high, and the leakage is caused by poor sealing

会造成系统不稳定

It will cause system instability

正压输送的优点：

Advantages of positive pressure conveying:

1、较吸送式要求高，应对被输送物料的特性和输送参数选择和设计不同的供料装置

1. It has higher requirements than the suction type. Different feeding devices should be selected and designed for the characteristics and conveying parameters of the transported materials

2，使用罗茨鼓风机为气源时，压力不能太高，故输送距离有一定的限制，一般是≤300米

2. When roots blower is used as the air source, the pressure should not be too high, so the conveying distance is limited to a certain extent, generally ≤ 300m

3、必须使用密闭性好的供料装置

3. The feeding device with good sealing must be used

负压输送使用场合

Application occasions of negative pressure conveying

1、人工加料

1. Manual feeding

2、散状物料，地面物料的取料

2. Reclaiming of bulk materials and ground materials

3、开袋投料站物料输送

3. Material conveying of bag opening feeding station

4、取料点高度受限的场合取料

4. Take materials when the height of the reclaiming point is limited

5、有毒物料输送

5. Toxic material transportation

6、多种出料口向一处输送

6. Multiple outlets are transported to one place

正压输送使用场合

Application occasions of positive pressure conveying

1、大颗粒输送

1. Large particle conveying

2、特殊气体输送

2. Special gas transmission

3、一般物料气力输送

3. Pneumatic conveying of general materials

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