How to properly install the chain?

1. The correctness of the chain installation directly affects the quality of the chain drive and the service life of the chain. Therefore, the following requirements are required for the correct installation of the chain:
1, two axes parallel, two-plane coplanar;
2. The connection between the sprocket and the shaft is reliable;
3, does not allow excessive tension;
4. The chain ring connection is reliable, and the open end of the circlip is opposite to the direction of rotation;
5, the chain and chain cover should maintain a certain gap;
6. The new chain (sprocket) must not be installed and used together with the seriously worn or unqualified sprocket (chain).
2. How the chain should be lubricated The lubrication of the maintenance chain drive depends on the application, the temperature, and the linear speed of the chain.
1, the use of occasions: open-type transmission such as various types of combine harvesters, windrower and other chains with grease lubrication. Closed transmission, such as walking tractor chain transmission box, should be used oil lubrication.
2. Temperature effect: It is generally recommended to use lubrication within the range of -5°C to +60°C. In winter, oil with small viscosity is used, and in summer, oil with high viscosity is used.
3, the impact of linear speed: Lubrication method directly related to the chain line speed:
a. When the transmission speed is less than 3-4 m/s, it can be lubricated manually and regularly, refueled every 15-25 hours, and added to the loose edge of the chain. Grease lubrication is used for the open transmission mechanism in the field.
b. When the transmission speed V is between 4-6 m/s, it can be periodically oiled and lubricated, boiled or drip-lubricated, with 5-20 drops of oil per minute.
c. When the transmission speed V is between 6-8 m/s, the oil pool can be lubricated, and the chain length is 6-12 mm.
d, when the transmission speed V> 8 meters / second, you can use oil splash lubrication, oil splashing using the oil pan, throw oil pan oil depth of 12-15 mm, the line speed is greater than 3 meters / second. Pressure injection lubrication can also be used. The nozzle is aligned with the loose edge of the chain and the injection volume is 1-3 ml/min.
3. How to properly tension the chain drive 1. The tension of the chain drive has obvious effects on improving the working reliability and prolonging the service life. However, it should be noted that excessive tension will increase the specific pressure of the hinge and reduce the chain transmission capacity. Therefore, tension is needed in the following situations:
1. Chain elongation after wear, in order to ensure reasonable sag and loose edge load is stable.
2. When the center distance between the two wheels is not adjustable or adjustment is difficult;
3. When the center distance of the sprocket wheel is over (A>50P);
4, vertical layout;
5, pulsation load, vibration, impact;
6, the ratio of large, small sprocket angle less than 120 °. The degree of tension of the chain is controlled by the amount of sagging: the amount of vertical placement is (0.01-0.015) A for the chain, 0.02 A for the horizontal layout, 3 mm for the general transmission, and 2 mm for the precision transmission.
Second, the chain tension method:
1. Adjust the center distance of the sprocket;
2, using tension sprocket tension;
3, the use of tension roller tensioning;
4, using elastic plate or elastic sprocket tension;
5, hydraulic tensioning. When tightening the tight edge, it should be tightened tightly on the inner side of the tight edge to reduce the vibration; when tensioning on the loose edge, consider the sprocket angle relationship should be tightened on the small sprocket 4p; if you consider eliminating the sag , should be tightened by the big sprocket 4p or the largest loose edge sagging.

Super-low Ash Coal Activated Carbon

coal-based activated carbon for water purification is widely used in the deep purification of drinking water, industrial water and wastewater. Industrial water purification and gas phase adsorption, such as power plant, petrochemical, oil refinery, food and beverage, sugar wine, medicine, electronics, fish, marine and other industries water purification treatment, can effectively absorb the water in the free, sulfur and other organic pollution special The price of the coal-activated carbon filter material, especially the precursor of the Mutant (THM), is to purify the impurity and remove the odor. can also be used for industrial exhaust purification, gas desulfurization, petroleum catalytic reforming, gas separation, pressure swing adsorption, air drying, food preservation, gas masks, media carrier recovery solvent Coal activated carbon, industrial solvent filtration, decolorization, purification and so on.

Use: Used in the purification of drinking water, deodorizing, brewing industry, decoloring of pharmaceutical and chemical products.

Spec.:

Model NO.
Moisture(%)
Strength(%)
Ash(%)
Idine value(mg/g)
Carbon tetrachloride(%)
Packing density(g/L)
pH-value
Grain diameter(mm)
DX-3060
≤3
≥95
≤5
≥1010
≥60
520±20
8-10
Φ3.0
DX-3070
≤3
≥95
≤6
≥1030
≥70
500±20
8-10
Φ3.0
DX-3080
≤3
≥93
≤8
≥1050
≥80
450±20
8-10
Φ3.0
DX-4060
≤3
≥95
≤5
≥1010
≥60
530±20
8-10
Φ4.0
DX-4070
≤3
≥95
≤6
≥1030
≥70
520±20
8-10
Φ4.0
DX-4080
≤3
≥95
≤8
≥1050
≥80
460±20
8-10
Φ4.0
DX-4090
≤3
≥93
≤9
≥1080
≥90
430±20
8-10
Φ4.0
DX-40100
≤3
≥90
≤10
≥1100
≥100
370±20
8-10
Φ4.0
8×30
≤5
≥93
≤5
≥1000
≥60
460±20
8-10
-
12×40
≤5
≥93
≤5
≥1000
≥60
450±20
8-10
-

Super-Low Ash Coal Activated Carbon

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SHIZUISHAN ZhongShi activated carbon co,.ltd , https://www.zscarbonchina.com