Device and method for measuring cohesive property of dust surface

Abstract

The invention discloses a device for measuring the cohesive property of the dust surface. The device includes a low-speed motor, an elastic rope, an upper barrel, a lower cohesive piece, a weighing sensor and a data acquisition device, the upper barrel is placed on the top of the lower cohesive piece, the lower cohesive piece is placed on the weighing sensor, the weighing sensor is connected withthe data acquisition device, one end of the elastic rope is connected to the upper edge of the upper barrel, and the other end of the elastic rope is connected with a rotating shaft of the low-speed motor arranged on the upper part of the elastic rope. According to the device for measuring the cohesive property of the dust surface, a method for measuring the cohesive property of the dust surface is provided, by using a vertical pulling and breaking method of combination of the low speed motor and the elastic rope, applied force increases slowly and uniformly, the sufficient recording time is given for the dust cohesive surface stripping process, and the problem that the cohesive surface is instantaneously pulled and cracked through a non-elastic rope and consequently capturing and recording cannot be achieved is solved; and a method of counterbalance counteracting table-board acting force is adopted, the problem of small range of the high precision weighing sensor is solved, and the measuring device has wide measuring range and high precision.

Description

technical field [0001] The invention relates to the technical field of dust surface cohesion measurement equipment, in particular to a device and method for measuring dust surface cohesion. Background technique [0002] In the bag filter, due to the cohesive force of the dust surface, the dust sticks to the filter system and is not easy to blow off, thus affecting the cleaning effect. However, the surface cohesion of dust is not easy to determine. The existing measurement method is the vertical breaking method adopted in GB / T 16913-2008. By using a viscosity balance, the dust sample is placed on the hook on the left arm of the viscosity balance and hung on the right arm. Place a water tank on the plate, use a water injector to fill the tank with water, and observe the pointer of the balance until the pointer deflects to the left to stop water injection. This method requires manual operation, and the operation is delicate. Dropping water by manual operation is easy to cause d...

AI Technical Summary

Problems solved by technology

[0002] In the bag filter, due to the cohesive force of the dust surface, the dust sticks to the filter system and is not easy to blow off, thus affecting the cleaning effect

However, the surface cohesion of dust is not easy to determine. The existing measurement method is the vertical breaking method adopted in GB / T 16913-2008. By using a viscosity balance, the dust sample is placed on the hook on the left arm of the viscosity balance and hung on the right arm. Place a water tank on the plate, use a water injector to fill the tank with water, and observe the pointer of the balance until the pointer deflects to the left to stop water injection. This method requires manual operation, and the operation is delicate. Dropping water by manual operation is easy to cause damage in the micro-measurement method. Large error, and due to the small amount of water, the water is easy to evaporate and lose quality in the air, which will cause large errors in actual operation, and this method can only measure the cohesive force between dust and dust, but cannot measure the dust and filter. Adhesion between membranes, the scope of application is relatively narrow

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