Beijing Hengaode CST Capillary Water Absorption Time Tester Model

Sludge capillary absorption time measuring instrumentCST capillary water absorption time testerCapillary water absorption time detectorHAD-CST

The filtration performance of sludge affects the output of different types of dewatering equipment, including drying beds, belt presses, vacuum filters, filter presses, and centrifugal separators. Produced through standard filter paperThe capillary water absorption pressure is used to "absorb" water from the sludge, and the rate of water infiltration into the filter paper depends on the state of the sludge and the filtration properties of the sludge cake formed on the filter paper. CST is obtained from two electrodes placed at standard intervals on a funnel. The time obtained from the beginning to passing between these two electrodes is CST

The capillary absorption time analyzer can be used in multiple fields, such as wastewater treatment (rapid testing of sludge filtration characteristics and status), oilfield chemical treatment agent testing and research (evaluation of mud)The ability to inhibit dispersibility, the anti swelling ability of drilling fluid, the ability to inhibit hydration dispersion of drilling fluid, and the optimization of wellbore working fluid formulation, such as the type, dosage, and ratio of treatment agents, can also be used as new methods for analyzing and evaluating shale classification.

Filtration area(4580±60)mm2

Data storage quantity30 times

Overall dimensions210×105×35（mm)

1. Working power supply DC3V

2. Working environment temperature: 10-50 ℃

3. Measurement range 0-999s

4. Read value 0.1s

5. Store 30 sets of data

6. Average value of stored data

Structure and working principle of the instrument

（1） Composition

Including timers, stainless steel cylinders, test probes, etc., stainless steel cylinders

One end has a diameter of 1 centimeter, and the other end has a diameter of 1.8 centimeters.

(II)Sludge capillary absorption time measuring instrumentworking principle

The CST value refers to the time required for a slurry composed of various test solutions and shale powder to pass through a specially designed filter paper at a certain distance. Its size is related to factors such as the properties of the liquid and the dispersibility of colloids, and can be used to determine whether shale is in water

The degree of colloidal dispersion in. The smaller the CST value, the better the inhibitory effect, and its minimum value indicates that:

(1) Shale hydration effect; (2) Colloidal dispersion; （3）Shale activity