CN202226793U

CN202226793U - Static mixer

Info

Publication number: CN202226793U
Application number: CN2011204014931U
Authority: CN
Inventors: 薛世忠
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-10-20
Filing date: 2011-10-20
Publication date: 2012-05-23
Anticipated expiration: 2021-10-20

Abstract

The application of the utility model provides a static mixer which is characterized by comprising a flow passage, wherein a primary mixing body and a secondary mixing body are arranged in the flow passage; the primary mixing body is arranged on the front section of the flow passage; the front end surface of the primary mixing body is perpendicular to the flow direction of the flow passage; a through hole (5) with a small caliber is formed in the primary mixing body; the section of the flow passage between the secondary mixing body and the primary mixing body and the section between the secondary mixing body have large calibers; the front end surface of the secondary mixing body is perpendicular to the flow direction of the flow passage; and a through hole (7) with a small caliber is arranged in the secondary mixing body.

Description

A kind of static mixer

Technical field

The application relates to a kind of static mixer that is used for the emulsion [explosive filling equipment.

Background technology

The on-site mixed equipment of emulsion [explosive through with full-bodied process of dynamite substrate and the Sodium Nitrite sensitizing solution aqueous solution under the pressure of rampump; Through tens of meters drug-transmitting pipe, before getting into the big gun hole, through the static mixer short mix; Inject the big gun hole; In the big gun hole, through 15-20 minute reaction, reach the density requirements of 1.05-1.25g/cm3, end reaction forms the emulsion [explosive that possesses cap-sensitivity.

From security needs, in the process of drug-transmitting pipe of flowing through, require emulsifying base and sensitizing solution not to mix serious chemical reaction takes place; And carry steadily; Resistance is little, require the drug-transmitting pipe pipeline steadily, no convex-concave joint, the drug-transmitting pipe big gun hole of directly packing into during powder charge; Static mixer is installed in the end of loading hose, and two kinds of materials get into the mixing in a flash in big gun hole.

Two kinds of materials are in the middle of drug-transmitting pipe, and sensitizing solution forms water ring, and full-bodied emulsifying base is arranged in the sensitizing solution water ring, make HV emulsifying base and sensitizing agent simultaneously smooth and easy mobile in drug-transmitting pipe.

After two kinds of mixing of materials, Sodium Nitrite and an ammonium nitrate generation chemical reaction in the big gun hole produce nitrogen, are distributed in the process of dynamite substrate, become sensitization bubble, during explosive detonation, form the focus of adiabatic compression, and then fired charge.

The utility model content

The purpose of the utility model is to provide a kind of direction, shearing each other, mixing, shunting, concentrated of passing through constantly two kinds of materials of change, reaches rapid and uniform blended static mixer.

The technical scheme of the utility model comprises:

A kind of static mixer; It is characterized in that: comprise a runner; Comprise in the said runner that mixed once body and secondary mixing are fit, said mixed once body is positioned at the runner leading portion, and its front end face is vertical with the flow direction of runner; And be provided with small-bore through hole (5) in the mixed once body; Said secondary mixing fit with the mixed once body between and runner after the secondary mixing zoarium be the heavy caliber runner, the front end face of secondary mixing zoarium is vertical with the flow direction of runner, and is provided with small-bore through hole (7) in the secondary mixing zoarium.

Further, the aperture of said through hole (5) is 3～5mm.

Further, the aperture of said through hole (7) is 3～5mm.

Further, said static mixer also comprises in order to connect the joint (2) of drug-transmitting pipe.

Further, said mixed once body is fixed in static mixer runner leading portion through the mode that is threaded.

Through first mixtinite and second mixtinite are set in runner, the front end face of first mixtinite is vertical with the runner flow direction in the static mixer of the utility model, can take place to mix for the first time so that sensitizing solution water ring and emulsifying base powder column are sheared each other; Get into the small-bore duct in first mixtinite then, because cross section of fluid channel diminishes, mixed sensitizing solution and emulsifying base quicken suddenly after getting into small-bore runner for the first time; And in small-bore runner, carry out the second time and mix, mixed stream gets into the preceding tube chamber of the second bigger mixtinite of bore after going out small-bore runner; Because it is big that the space becomes, flow velocity reduces, and in this tube chamber, mixes for the third time; And then get into the small-bore runner in second mixtinite; Carry out the 4th time and mix, when flowing out this small-bore runner, carry out the 5th time and mix.

Because the bore of small-bore runner can adopt very little size, like 3～5mm, can be so that velocity variations to be very fast, turbulent more remarkable effect reaches the purpose and the effect of short mix.

Description of drawings

Shown in Figure 1 is the decomposition texture synoptic diagram of a kind of embodiment of the application's static mixer.

Shown in Figure 2 is structural representation after the static mixer shown in Figure 1 combination.

Shown in Figure 3 is the structural representation of the another kind of embodiment of the application's static mixer.

Embodiment

Below in conjunction with accompanying drawing the application is further specified.

Be illustrated in figure 1 as the decomposition texture synoptic diagram of a kind of embodiment of the application's static mixer, shown in Figure 2 is structural representation after the combination of static mixer shown in Figure 1.

Comprise mixing tank sleeve 1; Mixing tank joint 2; Mixing tank joint 2 one ends are connected with drug-transmitting pipe, link to each other with first mixtinite 3 through being threaded in the other end inner chamber, and the outside links to each other with the front end inner chamber of mixing tank sleeve 1 through being threaded; Cavity 6, the second mixtinites 9 rear portions that form one section larger caliber between the front end face of second mixtinite 9 of the rear end of first mixtinite 3 in the sleeve 1 are the cavity 8 of another larger caliber.

The principle of work of present embodiment is: the drug-transmitting pipe tube chamber flows parcel emulsifying base powder column in the promotion lower edge of rampump pressure in the sensitizing solution water ring, gets into static mixers through mixing tank joint 2, and the front end face of first mixtinite 3 that is arranged in joint 2 inner chambers is vertical with the flow direction of sensitizing solution water ring and emulsifying base powder column; Sensitizing solution water ring and emulsifying base powder column are sheared under the effect of this front end face, carry out the first time and mix, and get into the small-bore through hole 5 of first mixtinite 3 then; Because cross section of fluid channel sharply diminishes, the flow velocity of sensitizing solution and emulsifying base will increase rapidly, thereby in through hole 5, turbulent flow take place; Promptly mix for the second time, when blended sensitizing solution and emulsifying base outflow through hole 5, get in the bigger cavity 6 of cross section of fluid channel; Corresponding sensitizing solution and emulsifying base mixed solution flow velocity slow down turbulent flow just take place; This is to mix for the third time, and during small-bore through hole 7 in getting into second mixtinite 9 once more, the front end face of second mixtinite 9 is sheared sensitizing solution and emulsifying base mixed solution once more; Flow velocity also increases once more when flowing into through hole 7; Be the 4th mixing, when mixed stream flows out through hole 7, when getting into the cavity 8 of larger caliber; Flow velocity slows down once more; Mixed stream further mixes, and is to mix for the 5th time, flows out static mixer and injects through mixed fluid repeatedly and carry out sensitized reaction in the big gun hole and form final emulsion [explosive.

Adopt the application's static mixer; Because the aperture of through hole 5 and through hole 7 is very little; Be preferably 3～5mm, can significantly change the velocity of flow of sensitizing solution and emulsifying base, the while is under the shearing action of the front end face of first mixtinite 3 and second mixtinite 9; Impel mutual shear-mixed between sensitizing solution and the emulsifying base, reach the purpose of short mix.

As another kind of embodiment, as shown in Figure 3, also can sleeve 1 first mixtinite 3 and joint 2 be made of one structure; Compare with the structure of previous embodiment; Though integrative-structure does not have dismountable characteristics, but can simplified processing process, reduce production costs.

Emulsion [explosive can obtain steady detonation must have physical sensitization agent such as sensitization bubble or hollow glass micropearl; The utility model indication chemical sensitizer is a sodium nitrite in aqueous solution; Produce the sensitization bubble (also can adopt other sensitizing agent and respective reaction to produce other sensitization bubble) of nitrogen in chemical sensitizer sodium nitrite in aqueous solution and the emulsifying base during an ammonium nitrate generation chemical reaction; The prerequisite that chemical reaction takes place for both is a thorough mixing; Sodium Nitrite is fully contacted with an ammonium nitrate, and concurrent biochemical reaction generates nitrogen bubble.

When the on-site mixed equipment of emulsion [explosive carried out scene filling process of dynamite substrate, emulsifying base did not need sensitization or forbade sensitization before getting into the big gun hole, to guarantee the safety of the process of manufacturing.The described static mixer of the utility model is through repeatedly shearing, mix sensitizing agent and emulsifying base, can moment with emulsifying base and Sodium Nitrite thorough mixing, impel sensitizing agent and emulsifying base fully to contact concurrent biochemical reaction and produce sensitization bubble.

Claims

1. static mixer; It is characterized in that: comprise a runner; Comprise in the said runner that mixed once body and secondary mixing are fit, said mixed once body is positioned at the runner leading portion, and its front end face is vertical with the flow direction of runner; And be provided with small-bore through hole (5) in the mixed once body; Said secondary mixing fit with the mixed once body between and runner after the secondary mixing zoarium be the heavy caliber runner, the front end face of secondary mixing zoarium is vertical with the flow direction of runner, and is provided with small-bore through hole (7) in the secondary mixing zoarium.

2. static mixer as claimed in claim 1 is characterized in that: the aperture of said through hole (5) is 3～5mm.

3. static mixer as claimed in claim 1 is characterized in that: the aperture of said through hole (7) is 3～5mm.

4. static mixer as claimed in claim 1 is characterized in that: said static mixer also comprises in order to connect the joint (2) of drug-transmitting pipe.

5. static mixer as claimed in claim 1 is characterized in that: said mixed once body is fixed in static mixer runner leading portion through the mode that is threaded.