CN104193563A - Paddle-free mixing device for mechanosensitive explosives and powders - Google Patents
Paddle-free mixing device for mechanosensitive explosives and powders Download PDFInfo
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- CN104193563A CN104193563A CN201410421146.3A CN201410421146A CN104193563A CN 104193563 A CN104193563 A CN 104193563A CN 201410421146 A CN201410421146 A CN 201410421146A CN 104193563 A CN104193563 A CN 104193563A
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Abstract
The invention discloses a paddle-free mixing device for mechanosensitive explosives and powders, which solves the problem of uniformly mixing a material with the mechanosensitive explosives and powders. The device comprises a mixing kettle (1), a kettle cover (2), an isolating kettle (3), a gas distributor (4), an injection pipe (5) and a nozzle (6). The device has the characteristics of being adjustable in elements, controllable in severe degree, small in vibration, convenient to maintain and free from mechanical shear and gas protection can be introduced, and is suitable for mixing the mechanosensitive explosives and powders, particularly mixing the explosives and powders of a long fiber material which is easy to be mechanically shared and damaged.
Description
Technical field
The invention belongs to fiery explosive hybrid technique technical field, relate to a kind of mechanical sensitivity fire explosive without oar mixing device, be specifically related to a kind of device containing the fiery explosive of long fiber material that can be adapted to mix.
Background technology
Hybrid technique is that fiery explosive field mutually disperses two or more materials and reaches the indispensable important process technology of certain degree of uniformity, is the important factor of the fiery explosive product performance of impact.Common hybrid mode is uniformly mixed, mediates mixing, rotating cylinder mixing, filter screen mixing, ultrasonic mixing etc.Wherein ultrasonic mixing and filter screen are blended in fiery Explosive Industry and rarely have application.What fire explosive field was most widely used is exactly to be uniformly mixed, to mediate to mix and rotating cylinder mixing, and rotating cylinder mixing drives materials inside rolling to realize dispersion mutually by rotating cylinder, is used for admittedly mixing; Kneading is mixed for the mixing of the viscoelastic body of a large amount of solids and a small amount of liquid composition; Be uniformly mixed for solid-liquid mixing, liquid liquid and mix and gas-liquid mixed.Wherein mediating the ultimate principle of mixing and being uniformly mixed is to utilize blade to mix effects such as the mechanical shearing of material, stretchings.
In fiery explosive field, some matrix material is in order to realize certain functional requirement, in formula, add appropriate long fiber material, the geometrical shape of these materials, size are through the definite optimum shape dimensional parameters of experimental formula repeatedly, are determining the performance of matrix material.But the easy stressed generation deformation of these filamentary materials or fracture, affect its role in matrix material.Therefore, how to guarantee that homogenization that long fiber material physical condition do not change disperses to become the gordian technique place of composite processing.In conventional hybrid mode, mediating mixing is to realize macrofiber dispersed comparatively desirable means in matrix material, but its strong shearing and stretching action can make the shape and size of long fiber material by considerable damage, thereby affects its proper property.At the first stage of composite processing, first make long fiber material dispersed in liquid phase formula, be the favorable method that reduces its structure deteriorate.But the mode that is uniformly mixed of mixing for fiery explosive field solid-liquid can produce and clashes into and shear long fiber material, make its fracture, and long fiber material is as easy as rolling off a log becomes entangled on stirring rake and stir shaft, is difficult to realize dispersed object.
Summary of the invention
One of object of the present invention be to overcome the deficiency of prior art and provide a kind of mixing device element adjustable, mix violent degree controlled, vibrate little, easy to maintenance, machinery-free is sheared, can introduce gas shield be applicable to mechanical sensitivity fire explosive without oar mixing device.
Object of the present invention can be achieved through the following technical solutions: a kind of mechanical sensitivity fire explosive is without oar mixing device, and this device comprises mixing kettle, kettle cover, isolation still, gas distributor, spray tube, nozzle; Mixing kettle bottom is provided with discharge port, and kettle cover is provided with opening for feed, the air inlet mouth of pipe and exhaust pipe mouth, and isolation still is provided with nozzle open holes and discharge port, and gas distributor is provided with the air inlet mouth of pipe, and spray tube is provided with nozzle open holes and drain, and nozzle is provided with pore.
The nominal diameter of mixing kettle is not more than 700mm, and mixing kettle aspect ratio is 1～1.5: 1, and coefficient is 0.6～0.8, mixing kettle lower surface adopts normal ellipsoidal head, upper end is uncovered and outward flange is set, and mixing kettle discharge port is located at lower cover center position, diameter 30～50mm.
Isolation still profile and mixing kettle are in full accord, diameter and be highly all less than mixing kettle, wherein external diameter is the poor of mixing kettle internal diameter and spray tube diameter, and top is uncovered, isolation still wall and lower cover have open holes, at the bottom of still, have discharge port, it is identical that discharge port diameter and mixing kettle are opened discharge port diameter, is 30～50mm.
Spray tube structurally consists of two portions, a part is for pasting the injection arm of mixing kettle inwall and isolation still outer wall, another part is the ring pipe coaxial with mixing kettle, spraying arm is 50～200mm at the part separation parallel with mixing kettle straight cylinder bus, final all injection arms intersect at ring pipe, and ring pipe central diameter is 100～200mm.Below charging liquid level, spray tube arranges nozzle open holes, be spaced apart 50～100mm, oblique lower 45 ° of aperture, on segmental arc top, arrange nozzle open holes, aperture direction is vertically pointed to mixing kettle axis, arranges nozzle open holes on ring pipe, and aperture is directed upwardly and parallel mixing still axis.With ring pipe concentric, diameter is that nozzle open holess are arranged in 1.5～3 times of ring pipe central diameter annulus positions, aperture is directed upwardly parallel mixing still axis.Symmetrical 2 drains of ring pipe lowermost end, diameter is 2～5mm, sprays arm operative tip and is processed into inner groovy form.
Gas distributor is comprised of a female groove and a series of distribution arms, and distribution arms one end connects female groove, and one end is processed into outer form of grooves, and distribution arms quantity is consistent with injection arm with caliber, and female groove upper end is provided with air inlet port.
Nozzle one end is connected with spray tube, and the other end arranges flat head, ventilate on flat head, and pore opening is 0.5～2mm, and the shared flat head area ratio of pore is not less than 0.5, and pore opening and density are according to the viscosity-modifying of mixing liquid.
Mixing process is gases used can select pressurized air, compressed nitrogen or other rare gas elementes according to material characteristic.
Compared with prior art, feature of the present invention is: mixing device element is adjustable, the violent degree of mixing is controlled, it is little, easy to maintenance to vibrate, machinery-free is sheared, can be introduced gas shield.This mixing device can be realized the even mixing containing long fiber material fire explosive, compares with conventional hybrid mode, and mixing process reduces by 40% to the destructive rate of long fiber material shape and size.This mixing device can be changed nozzle flexibly according to the physical attribute of blending objects and mutual ratio.This mixing device can prevent from producing and being wound around in the rotation of long fiber material in mixing kettle or attachment mechanism.
Accompanying drawing explanation
Fig. 1 is that a kind of mechanical sensitivity fire explosive of the present invention is without the structural representation of oar mixing device.
Fig. 2 is gas distributor structural representation of the present invention.
Fig. 3 is spray tube structural representation of the present invention.
Fig. 4 is nozzle face schematic diagram of the present invention.
1 mixing kettle, 2 kettle covers, 3 isolation stills, 4 gas distributors, 5 spray tubes, 6 nozzles, 7 open holess, 8 isolation still discharge ports, 9 mixing kettle discharge ports, 10 opening for feeds, 11 venting holes, 12 kettle cover air inlet ports, 13 sparger air inlet ports, 14 female grooves, 15 distribution arms, 16 outer grooves, 17 inner groovies, 18 nozzle open holess, 19 ring pipes, 20 spray arm, 21 drains, 22 flat heads, 23 pores.
Embodiment
Below in conjunction with Figure of description, the present invention will be further described.
As shown in Figures 1 to 4, a kind of mechanical sensitivity fire explosive of the present invention comprises mixing kettle 1, kettle cover 2, isolation still 3, gas distributor 4, spray tube 5, nozzle 6 without oar mixing device.The concrete structure of gas distributor 4 is shown in Fig. 2, and the concrete structure of spray tube 5 is shown in Fig. 3, and the end face structure of nozzle 6 is shown in Fig. 4.
The nominal diameter of described mixing kettle 1 is not more than 700mm, mixing kettle 1 aspect ratio is 1～1.5: 1, coefficient is 0.6～0.8, mixing kettle 1 lower surface adopts normal ellipsoidal head, upper end is uncovered and outward flange is set, flange and kettle cover 2 are bolted, and the discharge port 9 of mixing kettle 1 is located at lower cover center position, and diameter is 30～50mm.Mixing kettle 1 is that a kind of mechanical sensitivity fire explosive is without the pressure-bearing part of oar mixing device.
On described kettle cover 2, open three holes, be respectively opening for feed 10, venting port 11, inlet mouth 12, opening for feed 10 and quantifying feed equipment connection, arrange back pressure valve in associated pipe; Venting port 11 is connected with induced draft fan, and inlet mouth 12 is connected with compression gas tank, for pressurized gas, enters gas distributor 4.
Described isolation still 3 profiles and mixing kettle 1 are in full accord, diameter and be highly less than mixing kettle 1, wherein external diameter is the poor of mixing kettle 1 internal diameter and spray tube 5 external diameters, and top is uncovered, after installing gas sparger 4 and spray tube 5, can be close to gas distributor 4 and spray tube 5, isolation still 3 has open holes 7, and isolation still 3 centers, bottom have discharge port 8, discharge port 8 diameters are identical with mixing kettle 1 discharge port of opening 9 diameter, are 30～50mm.Isolation still 3 is mainly used in fixedly spray tube 5, installation nozzle 6, prevents that the macrofiber in mixture from stopping up or being wound around in the gap of spray tube 5.
As depicted in figs. 1 and 2, described gas distributor 4 is comprised of a female groove 14 and a series of distribution arms 15, distribution arms 15 one end connect female groove 14, one end is processed into outer groove 16, gas distributor 4 tops have inlet mouth 13, this inlet mouth 13 is in the same size with the inlet mouth 12 on kettle cover 2, all has internal thread, is connected with inlet pipe.The quantity of distribution arms 15 is consistent with injection arm 20 with caliber.
As shown in figures 1 and 3, described spray tube 5 has nozzle open holes 18 at nozzle 6 installed positions, sprays arm 20 ingresss and is processed into inner groovy 17, and this inner groovy 17 assembles with the outer groove 16 of gas distributor 4, and centre is lined with plastics or rubber sheet gasket.Spray tube 5 top side nozzle open holess 18 should be lower than the in-built feed liquid face of mixing kettle 1, and nozzle open holes 18 directions are for vertically upward or oblique lower 45 °.Spray tube 5 ring pipe 19 part central diameters are 100～200mm, and open two drains 21 in ring pipe 19 position symmetries, for the liquid material emptying in spray tube after shutting down 5.Spray tube 5 can be changed flexibly according to the process requirements of concrete material.
As shown in Figure 1 and Figure 4, described nozzle 6 one end are connected with spray tube 5 by isolation still 3.Nozzle 6 one end arrange flat head 22, and on flat head 22, ventilate 23, and pore 23 sizes are 0.5～2mm, and pore 23 sizes and density are according to the viscosity-modifying of mixture, and shared end socket 22 area ratios of pore 23 are not less than 0.5.Nozzle 6 can be changed flexibly according to different material.
Erection sequence of the present invention is at the interior installation spray tube 5 of mixing kettle 1, and then isolation still 3 is installed, and then nozzle 6 is installed, and then installing gas sparger 4, and then kettle cover 2 is installed, and then other auxiliary setting and annex is installed.Un-mate sequence is contrary with erection sequence, disassembles front needs through fully wash and remove nozzle 6 under Soaking environment.Mixing process of the present invention jet flow stream used is used pressurized air, compressed nitrogen or other rare gas elementes according to mixed material property feature.
Claims (7)
1. a mechanical sensitivity fire explosive is without oar mixing device, by mixing kettle (1), kettle cover (2), isolation still (3), gas distributor (4), spray tube (5), nozzle (6), formed, it is characterized in that, described spray tube (5) is placed in mixing kettle (1), isolation still (3) is put into mixing kettle (1), coaxially, spray tube (5) is clipped in the middle of mixing kettle (1) and isolation still (3) for mixing kettle (1), spray tube (5), isolation still (3); Nozzle (6) is installed on spray tube (5) by open holes (7) and nozzle open holes (18); Gas distributor (4) is installed in mixing kettle (1), and the outer groove (16) on gas distributor (4) docks with the inner groovy (17) on spray tube (5); Kettle cover (2) is installed on mixing kettle (1) top, and connects with screw; Described mixing kettle (1) bottom is provided with discharge port (9); Described kettle cover (2) is provided with opening for feed (10), inlet mouth (12) and venting port (11); Described isolation still (3) profile is consistent with mixing kettle (1), is provided with open holes (7) and discharge port (8); Described spray tube (5) is comprised of ring pipe (19) and injection arm (20), is provided with nozzle open holes (18) and material drain (21); Described gas distributor (4) is comprised of female groove (14) and distribution arms (15), is provided with inlet mouth (13), and distribution arms (15) top is provided with outer groove (16); Described nozzle (6) has pore (23) on flat head (22).
2. a kind of mechanical sensitivity fire explosive according to claim 1 is without oar mixing device, it is characterized in that, the nominal diameter of described mixing kettle (1) is not more than 700mm, mixing kettle (1) aspect ratio is 1～1.5: 1, coefficient is 0.6～0.8, and mixing kettle (1) lower surface adopts normal ellipsoidal head, and upper end is uncovered and outward flange is set, mixing kettle (1) discharge port (9) is located at lower cover center position, diameter 30～50mm.
3. a kind of mechanical sensitivity fire explosive according to claim 1 is without oar mixing device, it is characterized in that, described isolation still (3) profile is consistent with mixing kettle (1), diameter and be highly all less than mixing kettle (1), wherein external diameter is the poor of mixing kettle (1) internal diameter and spray tube (5) diameter, and top is uncovered, isolation still (3) wall and lower cover have open holes (7), at the bottom of still, have discharge port (8), isolation still discharge port (8) diameter is identical with mixing kettle (1) discharge port of opening (9) diameter, is 30～50mm.
4. a kind of mechanical sensitivity fire explosive according to claim 1 is without oar mixing device, it is characterized in that, described spray tube (5) structurally consists of two portions, a part is for pasting the injection arm (20) of mixing kettle (1) inwall and isolation still (3) outer wall, another part is the ring pipe (19) coaxial with mixing kettle (1), spraying arm (20) is 50～200mm at the part separation parallel with mixing kettle (1) straight cylinder bus, all injection arms (20) intersect at ring pipe (19), and ring pipe (19) central diameter is 100～200mm; Below charging liquid level, spray tube (5) arranges nozzle open holes (18), be spaced apart 50～100mm, oblique lower 45 ° of aperture, on segmental arc top, arrange nozzle open holes (18), aperture direction is vertically pointed to mixing kettle (1) axis, and at the upper nozzle open holes (18) of arranging of ring pipe (19), aperture is directed upwardly and parallel mixing still (1) axis; With ring pipe (19) concentric, diameter is that 1.5～3 times of ring pipes (19) central diameter annulus position arranges that nozzle open holes (18), aperture are directed upwardly and parallel mixing still (1) axis; Symmetrical 2 drains of ring pipe (19) lowermost end (21), diameter is 2～5mm, sprays arm (20) top and is processed into inner groovy (17) form.
According to claim 1, a kind of mechanical sensitivity claimed in claim 4 fire explosive without oar mixing device, it is characterized in that, described gas distributor (4) is that distribution arms (15) forms by a female groove (14) and, distribution arms (15) one end connects female groove (14), one end is processed into outer groove (16) form, distribution arms (15) quantity is consistent with injection arm (20) with caliber, and female groove (14) upper end is provided with air inlet port (13).
According to claim 1, a kind of mechanical sensitivity claimed in claim 4 fire explosive without oar mixing device, it is characterized in that, described nozzle (6) one end is connected with spray tube (5), one end arranges flat head (22), the upper ventilate (23) of flat head (22), pore (23) size is 0.5～2mm, and the shared flat head of pore (23) (22) area ratio is not less than 0.5.
According to a kind of mechanical sensitivity fire of claim 1～claimed in claim 6 explosive without oar mixing device, it is characterized in that, described jet flow stream can be selected pressurized air, compressed nitrogen or other rare gas elementes according to material characteristic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410421146.3A CN104193563B (en) | 2014-08-25 | 2014-08-25 | A kind of mechanical sensitivity explosive wastewater is without oar mixing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410421146.3A CN104193563B (en) | 2014-08-25 | 2014-08-25 | A kind of mechanical sensitivity explosive wastewater is without oar mixing arrangement |
Publications (2)
| Publication Number | Publication Date |
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| CN104193563A true CN104193563A (en) | 2014-12-10 |
| CN104193563B CN104193563B (en) | 2016-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410421146.3A Expired - Fee Related CN104193563B (en) | 2014-08-25 | 2014-08-25 | A kind of mechanical sensitivity explosive wastewater is without oar mixing arrangement |
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| CN (1) | CN104193563B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109123742A (en) * | 2018-09-27 | 2019-01-04 | 杨成云 | A kind of pipe tobacco and sheet and shreds are mixed with device and blending |
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| CN104193563B (en) | 2016-09-14 |
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