CN115674034A - Method for adjusting ratio of abrasive particles to medium - Google Patents

Abstract

Method for adjusting the ratio of abrasive particles to media: the method belongs to the technical field of abrasive particle medium jet flow, and firstly, the weight of abrasive particles entering a discharge pipe from a generating tank in unit time is obtained through the change of the weight detected by an electronic scale in unit time and is marked as a. Secondly, the weight of the medium entering the tapping pipe per unit time can be calculated from the flow rate. Finally, the weight ratio of abrasive particles to medium in the tapping pipe per unit time = the weight of medium entering the tapping pipe per unit time: the weight of the abrasive particles entering the tapping pipe per unit time. The invention can firstly know the weight change of the abrasive particles in the mixing tank or the generating tank, further know the proportion of the abrasive particles and the medium in the discharging pipe, and then realize the adjustment according to the requirement.

Description

Method of adjusting the ratio of abrasive grains to medium

technical field

The invention belongs to the field of abrasive media jet technology, in particular to a method for digitally adjusting the ratio of abrasive grains to media.

Background technique

The current abrasive media jet equipment is all media and abrasive particles (for example: the medium is a fluid liquid such as water or liquid resin, and the abrasive particles are corundum, silicon carbide or zirconia, or abrasive particles mixed in a set ratio), Mix in the mixing tank or generating tank, and then flow out for feeding, but the current technology cannot know the ratio of abrasive grains and media in the output.

Contents of the invention

The purpose of the present invention is to provide a method for adjusting the ratio of abrasive grains to medium, so that the weight change of abrasive grains and water in the discharge pipe can be known.

The method for adjusting the ratio of abrasive grains to medium: it is characterized in that it comprises the following steps:

First, through the weight change detected by the electronic scale per unit time, the weight of the abrasive particles entering the discharge pipe from the generating tank per unit time is obtained, which is denoted as a.

Secondly, according to the flow rate, the weight of the medium entering the discharge pipe per unit time can be calculated.

Finally, the weight ratio of the abrasive grains in the discharge pipe to the medium per unit time = the weight of the medium entering the discharge pipe per unit time: the weight of the abrasive grains entering the discharge pipe per unit time.

Its advantages are:

The invention can first know the weight change of the abrasive grains in the mixing tank or the generation tank, and further know the ratio of the abrasive grains and the medium in the discharge pipe, and then realize adjustment as required.

Description of drawings

Figure 1 is a schematic diagram of the principle device for implementing the method.

Abrasive material box 1, generating tank 2 (mixing tank), electronic scale 3, pump 4, medium inlet pipe 5, discharge pipe 6, medium inlet of generating tank 7, tee joint 8, regulating pipeline 9, total Valve 10, medium inlet valve 11, regulating valve 12.

Detailed ways

As shown in FIG. 1 : a schematic ultra-high pressure (260Mpa) abrasive flow generator structure includes an abrasive material box 1 and a generating tank 2 .

The outlet at the bottom of the abrasive material box 1 is connected to the abrasive grain inlet at the top of the generating tank 2 by a pipeline.

The pump 4 has a pumping medium pipe, and after passing through the three-way joint 8, it is connected to the medium inlet 7 of the tank through the medium inlet pipeline 5. After passing through the three-way joint 8, the other road is the regulating pipeline 9.

The medium inlet pipeline 5 is provided with a medium inlet valve 11 .

A regulating valve 12 is provided on the regulating pipeline 9 .

A main valve 10 is arranged on the pumping medium pipe.

An electronic scale 3 (electronic scale) is arranged at the bottom of the tank 2 .

A discharge pipe 6 is arranged at the bottom of the tank 2 .

The outlet of the adjustment pipeline 9 is connected to the discharge pipe 6 .

The inlet medium pipeline 5 and the regulating pipeline 9 are respectively provided with respective flow sensors.

The method for adjusting the ratio of abrasive grains to medium: includes the following steps:

Because the flow rate of the medium in the medium pipe 5 and the discharge pipe 6 is the same, the water in the tank 2 has a constant weight all the time. The weight of tank 2 remains constant.

The weight change detected by the electronic scale 3 per unit time is the weight a (in grams) of the abrasive grains entering the discharge pipe 6 from the generator tank 2 per unit time.

According to the flow rate, the weight of the medium entering the discharge pipe 6 per unit time can be calculated.

The weight of the medium entering the discharge pipe 6 per unit time: the weight of the abrasive grains entering the discharge pipe 6 per unit time = the weight ratio of the abrasive grains in the discharge pipe 6 to the medium per unit time.

At this time, if the medium is added, the weight ratio of the abrasive grains to the medium becomes smaller.

At this time, if the media is reduced, the weight ratio of the abrasive grains to the media will increase.

further:

If the above-mentioned proportional value is greater or smaller than the set required proportional value, the medium inlet valve 11 and the regulating valve 12 are adjusted for adjustment.

When the medium is water:

Specific numerical formulas can also be used:

in,

The weight of the abrasive grains and the weight of the medium mentioned in the formula are the weight per unit time.

Pump 4 is connected to the media tank.

The pump 4 sends the medium into the generation tank 2, and the abrasive grains enter the generation tank 2 from the abrasive material box 1.

The LED display can be set to display the corresponding value.

The medium may be a liquid medium, such as water, and the abrasive grains are corundum.

Claims (2)

1. Method for adjusting the ratio of abrasive particles to media: the method is characterized by comprising the following steps:

firstly, the weight of abrasive particles entering a discharge pipe (6) from a generating tank (2) in unit time is obtained through the weight change detected by an electronic scale (3) in unit time and is marked as a;

secondly, the weight of the medium entering the discharge pipe (6) in unit time can be calculated according to the flow rate;

finally, the weight ratio of the abrasive particles to the medium in the discharge pipe (6) per unit time = the weight of the medium entering the discharge pipe (6) per unit time: the weight of the abrasive particles entering the discharge pipe (6) per unit time.

2. The method of adjusting abrasive particle to media ratio of claim 1: the method is characterized by comprising the following steps:

when the medium is water: the formula adopted is as follows:

wherein,

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