1. The utility model provides a be applied to dust laser detection's sample presentation device which characterized in that: the sample mixing device comprises a sample feeding channel and a sample mixing chamber, wherein the sample feeding channel comprises an air inlet end and an air outlet end, the air inlet end is connected with an air source, and the air outlet end is used for connecting a pipeline and leading into a detection area of a detector;

mix appearance room bottom and be provided with the ventilation hole of a plurality of equipartitions, the ventilation hole upper end is provided with the hood, the ventilation hole lower extreme is connected with the air hose, mix appearance roof portion and be provided with out the appearance mouth, it stretches into in the sample sending passageway to go out the appearance mouth.

2. The sample feeding device applied to dust laser detection of claim 1 is characterized in that: the wind cap comprises a wind deflector and a plurality of supporting rods, the wind deflector is of a spherical structure with the middle part protruding upwards, the supporting rods are uniformly arranged at the upper end of the ventilation hole in a surrounding mode, one end of each supporting rod is fixedly connected with the wind deflector, and the other end of each supporting rod is connected with the side wall of the ventilation hole.

3. The sample feeding device applied to dust laser detection as claimed in claim 2, is characterized in that: the sample feeding device comprises a sample feeding channel, and is characterized in that a gas outlet end of the sample feeding channel is connected with a rectifier tube, the rectifier tube comprises an outer tube and a rectifier assembly, the outer tube is connected with the gas outlet end of the sample feeding channel, the rectifier assembly comprises an inner core rod and a plurality of rectifier plates, the plurality of rectifier plates axially extend along the inner core rod in a spiral manner, and the plurality of rectifier plates are uniformly distributed at intervals.

4. The sample feeding device applied to dust laser detection is characterized in that: the windward end of the inner core rod is of a spherical or conical surface structure with the middle part protruding outwards.

5. The sample feeding device applied to dust laser detection is characterized in that: the bottom of the sample mixing chamber is provided with a movable plate, the edge of the movable plate is hermetically connected with the inner wall of the sample mixing chamber, and the movable plate can slide up and down in the sample mixing chamber.

6. The sample feeding device applied to dust laser detection of claim 5 is characterized in that: send a kind passageway and lean on mixing appearance room one side and be provided with the go-between, the go-between inner wall is provided with the internal thread, it is provided with the external screw thread to mix appearance room upper end outer wall, the go-between overlaps outside mixing appearance room upper end, and is connected through internal thread and external screw thread cooperation.

Background

In the production activity, in particular, raw materials in industrial and mining enterprises are complex, various kinds of dust are diffused in the air, the human health is influenced to different degrees, and the harmfulness of the dust needs to be detected on site or after the dust is collected;

the detected dust comprises dust captured in the air or raw materials which are easy to generate dust, wherein the dust detected in the air has high real-time accuracy, but the acquisition time is that the dust is acquired and detected when production activities are carried out, the raw materials are detected in advance, the detection is foreseeable in advance, but the dust detection of the raw materials needs to be carried out after the raw materials are crushed, large granular substances cannot be used for detection after the crushing, large granules need to be screened out, and the detection process is complex;

for this reason, it is necessary to design an apparatus capable of reducing the pretreatment step for detecting the dust of the pulverized raw material.

Disclosure of Invention

The invention provides a sample conveying device applied to dust laser detection, aiming at the technical problems in the prior art.

The technical scheme for solving the technical problems is as follows:

a sample feeding device applied to dust laser detection comprises a sample feeding channel and a sample mixing chamber, wherein the sample feeding channel comprises an air inlet end and an air outlet end, the air inlet end is used for being connected with an air source, and the air outlet end is used for being connected with a pipeline and leading into a detection area of a detector;

mix appearance room bottom and be provided with the ventilation hole of a plurality of equipartitions, the ventilation hole upper end is provided with the hood, the ventilation hole lower extreme is connected with the air hose, mix appearance roof portion and be provided with out the appearance mouth, it stretches into in the sample sending passageway to go out the appearance mouth.

Further inject, the hood includes aviation baffle and bracing piece, the aviation baffle is the convex spherical structure that makes progress in the middle part, the bracing piece is provided with a plurality ofly, and evenly encircles and locate the ventilation hole upper end, bracing piece one end and aviation baffle fixed connection, the other end is connected with the ventilation hole lateral wall.

Further limiting, the gas outlet end of the sample feeding channel is connected with a rectifying tube, the rectifying tube comprises an outer tube body and a rectifying assembly, the outer tube body is connected with the gas outlet end of the sample feeding channel, the rectifying assembly comprises a core rod and a plurality of rectifying plates, the plurality of rectifying plates extend axially along the core rod in a spiral shape, and the plurality of rectifying plates are uniformly distributed at intervals.

Further, the windward end of the inner core rod is of a spherical or conical surface structure with the middle part protruding outwards.

Further inject, the bottom of mixing the appearance room is provided with the fly leaf, the fly leaf edge and the indoor wall sealing connection of mixing the appearance, just the fly leaf can slide from top to bottom in mixing the appearance indoor.

Further inject, send a kind passageway and lean on mixing appearance room one side and be provided with the go-between, the go-between inner wall is provided with the internal thread, it is provided with the external screw thread to mix appearance room upper end outer wall, the go-between overlaps outside mixing appearance room upper end, and is connected with the external screw thread cooperation through the internal thread.

The invention has the beneficial effects that:

the sample mixing chamber is used for accommodating crushed materials of raw materials, a plurality of vent holes are formed in the bottom of the sample mixing chamber, a hood is arranged at the upper ends of the vent holes, the vent holes are connected with vent hoses, the vent hoses can be connected with an air source of inert gas, the inert gas is led in to form a boiling state at the bottom of the sample mixing chamber through the hood, particles with smaller particle sizes are lifted upwards, and the inert gas is fed into a sample feeding channel;

in addition, the air inlet end of the sample feeding channel is connected with an air source, the other end of the sample feeding channel is fed into the detection area of the detector through a pipeline, when the device is used, before the air is introduced into the sample mixing chamber, practical homologous inert gas is introduced from the air inlet end in advance, flowing air flow is formed in the sample feeding channel, and then the inert gas is introduced into the sample mixing chamber to enable the dust sample to be lifted upwards to be mixed into the air flow;

according to the scheme, the sample dust particles are screened in a boiling simulating mode, and large-particle substances can be effectively intercepted in a fixed airflow sample conveying mode, so that the detection operation is facilitated;

the wind cap consists of a spherical wind deflector with an upward convex middle part and a support rod, the wind deflector is connected with the side wall of the vent hole through the support rod, and inert gas enters the wind cap and is blocked by the wind deflector and is blown downwards from the periphery of the wind deflector, so that the boiling effect is realized;

the rectifying tube consists of an outer tube body used for connecting the air outlet end of the sample sending channel and an inner core rod arranged in the outer tube body, the inner core rod is connected with the outer tube body through a rectifying plate wound outside the inner core rod in a spiral arrangement, a spiral channel is formed between the two rectifying plates, when a dust sample passes through the inner core rod, the dust sample is rectified through the spiral channel to form a forward flowing rotational flow, the dust sample can be effectively prevented from settling when flowing in a pipeline, the conveying accuracy of the dust sample is improved, and the detection accuracy is improved;

the bottom of the sample mixing chamber is of a movable structure and can be pushed by external equipment, and in the sample conveying process, the movable plate can be pushed by the external equipment to adjust the height of the sample so as to adapt to detection samples made of different materials;

will send a kind passageway to be connected with mixing the appearance room through detachable connected mode, can be convenient for the later stage inspect the maintenance to inside.

Drawings

FIG. 1 is a schematic view of the internal structure of the present invention;

FIG. 2 is a side view of the present invention;

FIG. 3 is a schematic structural view of the core bar and the rectifying plate;

in the drawings, the components represented by the respective reference numerals are listed below:

the sample feeding device comprises a sample feeding channel 1, a sample mixing chamber 2, a vent hole 3, a vent hose 4, an air deflector 5, a support rod 6, an outer tube 7, an inner core rod 8, a rectifying plate 9, a movable plate 10 and a connecting ring 11.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.

As shown in fig. 1, 2 and 3, a sample feeding device applied to laser detection of dust comprises a sample feeding channel 1 and a sample mixing chamber 2, wherein the sample feeding channel 1 comprises a gas inlet end and a gas outlet end, the gas inlet end is used for connecting a gas source, and the gas outlet end is used for connecting a pipeline to a detection area of a detector;

mix 2 bottoms in appearance room and be provided with the ventilation hole 3 of a plurality of equipartitions, 3 upper ends in ventilation hole are provided with the hood, 3 lower extremes in ventilation hole are connected with air hose 4, mix 2 tops in appearance room and be provided with out the appearance mouth, it stretches into in the sample presentation passageway 1 to go out the appearance mouth.

The hood comprises an air deflector 5 and a supporting rod 6, the air deflector 5 is of a spherical structure with the middle part protruding upwards, the supporting rods 6 are arranged in a plurality and are uniformly arranged at the upper end of the ventilation hole 3 in a surrounding mode, one end of the supporting rod 6 is fixedly connected with the air deflector 5, and the other end of the supporting rod is connected with the side wall of the ventilation hole 3.

Send appearance passageway 1's the end of giving vent to anger to be connected with the rectifier tube, the rectifier tube includes outer body 7 and rectification subassembly, outer body 7 is connected with the end of giving vent to anger of sending appearance passageway 1, the rectification subassembly includes core bar 8 and cowling panel 9, cowling panel 9 is provided with a plurality ofly, cowling panel 9 is the heliciform and extends along 8 axial of core bar, and is a plurality of cowling panel 9 interval evenly distributed.

The windward end of the inner core rod 8 is of a spherical or conical surface structure with the middle part protruding outwards.

The bottom of the sample mixing chamber 2 is provided with a movable plate 10, the edge of the movable plate 10 is hermetically connected with the inner wall of the sample mixing chamber 2, and the movable plate 10 can slide up and down in the sample mixing chamber 2.

Send appearance passageway 1 to lean on to mix appearance room 2 one side and be provided with go-between 11, go-between 11 inner wall is provided with the internal thread, mix 2 upper end outer walls in appearance room and be provided with the external screw thread, go-between 11 covers outside mixing 2 upper ends in appearance room, and is connected through internal thread and external screw thread cooperation.

In this embodiment:

the sample mixing chamber 2 is used for accommodating crushed materials of raw materials, a plurality of vent holes 3 are formed in the bottom of the sample mixing chamber, a hood is arranged at the upper ends of the vent holes 3, the vent holes 3 are connected with vent hoses 4, the vent hoses 4 can be connected with an air source of inert gas, the inert gas is introduced to form a boiling state at the bottom of the sample mixing chamber 2 through the hood, particles with smaller particle sizes are lifted upwards, and the introduced inert gas is sent into the sample sending channel 1;

in addition, the air inlet end of the sample feeding channel 1 is connected with an air source, the other end of the sample feeding channel is fed into a detection area of the detector through a pipeline, when the device is used, before the sample mixing chamber 2 is ventilated, practically homologous inert gas is fed in advance from the air inlet end, flowing air flow is formed in the sample feeding channel 1, and then inert gas is fed into the sample mixing chamber 2 to enable the dust sample to be lifted upwards to be mixed into the air flow;

according to the scheme, the sample dust particles are screened in a boiling simulating mode, and large-particle substances can be effectively intercepted in a fixed airflow sample conveying mode, so that the detection operation is facilitated;

the wind cap consists of a spherical wind deflector 5 with an upward convex middle part and a support rod 6, the wind deflector 5 is connected with the side wall of the vent hole 3 through the support rod 6, and inert gas enters the wind cap and is blocked by the wind deflector 5 and is blown downwards from the periphery of the wind deflector 5, so that the boiling effect is realized;

the rectifying tube consists of an outer tube body 7 used for connecting the air outlet end of the sample sending channel 1 and an inner core rod 8 arranged in the outer tube body 7, the inner core rod 8 is connected with the outer tube body 7 through a rectifying plate 9 spirally arranged around the outer core rod 8, a spiral channel is formed between the two rectifying plates 9, when a dust sample passes through the spiral channel, the dust sample is rectified through the spiral channel, a forward flowing rotational flow is formed, the dust sample can be effectively prevented from settling when flowing in a pipeline, the conveying accuracy of the dust sample is improved, and the detection accuracy is improved;

the bottom of the sample mixing chamber 2 is of a movable structure and can be pushed by external equipment, and in the sample conveying process, the movable plate 10 can be pushed by the external equipment to adjust the height of the sample so as to adapt to detection samples made of different materials;

will send a kind passageway 1 and mix appearance room 2 to be connected through detachable connected mode, can be convenient for the later stage to inside inspection maintenance.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.