CN205731511U - Flour mill for gathering and processing of sample - Google Patents

Abstract

The utility model discloses a kind of flour mill for gathering and processing of sample, including powder process chamber, powder process chamber is provided with feeding mouth, rotatable powder process rotor assembly it is provided with in powder process chamber, powder process chamber rotates to be respectively provided with on the inner ring surface of circumference in powder process rotor assembly pulverizes the annular disintegrating area of sample and for the annular screen barrier of filtered sample, be provided with circular screen at annular screen barrier, powder process rotor assembly in powder process chamber high speed rotating and with annular disintegrating area coordinates with by sample clash into pulverizing after discharged by circular screen.This utility model have simple and compact for structure, pulverizing sample preparation precision can be improved further, improve the advantage such as service life of equipment.

Description

Flour mill for gathering and processing of sample

Technical field

This utility model is mainly concerned with sample gathering and processing apparatus field, refers in particular to a kind of powder process for gathering and processing of sample Machine.

Background technology

For material (such as Ore, the coal) sampling of sample, sample preparation, chemical examination work, every country all has pressure standard, must Must in accordance with standard carry out sample gather and process chemical industry make.The sampling of sample, sample preparation, the criterion of chemical examination work process are not destroy sample On the premise of product representativeness, the sample granularity collected being gradually reduced, quality also gradually reduces, until meeting laboratory assay Granularity and quality (weight) required precision, the assay then satisfactory sample being correlated with to sample.

Example is turned to as gathered and processed with the sample of coal, the process of a kind of sampling analysis, coal samling and sample preparation Purpose, is to represent and be sampled the experiment coal sample of coal by the gross to obtain its experimental result.Whether " sample ", " sample preparation " Still " chemically examining ", during this, the Mass accuracy of various samples, sample characteristics of for example control particularly important, it is impossible to enough have sample Loss, it is impossible to enough make sample occur some physically or chemically to change, otherwise final result of the test will be impacted.

In material (such as Ore, the coal) sampling of sample, sample preparation, chemical examination work, generally require use fuel pulverizing plant pair Sample carries out crushing, powder process operation.In this course, existing fuel pulverizing plant often there is problems in that

1, screen cloth and powder process rotor are easy to wear, and service life is short, and use cost is high.The anchor ring of existing fuel pulverizing plant is respectively provided with Screen cloth, arranges powder process rotor in screen cloth, reach mainly by the shearing between powder process rotor and screen cloth, frictional force to pulverize during powder process Effect, i.e. screen cloth undertake the function of filtration incessantly, also need to undertake the function of grinding flour.If the spacing of screen cloth and rotor is relatively Little, then can not and rotor between form shearing force, then cannot complete broken powder process.This makes the frictional force that screen cloth and rotor bear Relatively big, abrasion is very fast, and service life is short.Then affect powder process effect as changed screen cloth or rotor not in time, carry out affecting sample Whole test accuracy, if frequently changed, use cost increases, inefficiency.Meanwhile, the mode of this grinding flour, When running into big size sample, it is likely to result in that rotor is stuck, motor burns machine equivalent risk.

2, for the sample (such as coal sample) that interior water is bigger, screen cloth during powder process, is easily blocked.The bigger coal sample of interior water is in powder process Time can separate out certain moisture, make coal dust have certain viscosity.And existing fuel pulverizing plant mainly by centrifugal force by after powder process Sample throws away screen cloth, owing to the centrifugal force of the least sample of internal granularity also can be the least, so that part coal sample can be glued It is attached near sieve aperture, screen cloth will be blocked in the course of time so that even if having crushed the coal dust reaching requirement granularity owing to not having Sifting out from screen cloth, may proceed to pulverize at powder process intracavity, crossing the coal sample after crushing can affect the test accuracy that sample is final；Meanwhile, When screen plugging to a certain extent, can make to complete powder process action.

3, sample collection rate is low.Existing fuel pulverizing plant sinks in mainly coal dust sucking collecting chamber by high negative pressure system Long-pending, which due to need to be clean by the coal powder collection of powder process intracavity, then must use bigger negative pressure to inhale, then the negative pressure other end Then can there is the malleation of increasing in defecator, a lot of excessively broken coal dusts of suction then can be discharged at defecator, thus leads Cause collection rate is low, carries out affecting the result of the test that sample is final.

4, existing fuel pulverizing plant there is also a screen cloth and easily blocks and the contradiction of screen cloth rapid wear.As a example by coal sample, due to coal Coal dust need to be broken to 0.2mm during matter chemical examination, therefore, the hole of screen cloth is also required to be 0.2mm, and hole is the least, according to traditional straight Screen mesh, then, within screen cloth thickness of slab needs to be maintained at 0.2mm, otherwise screen cloth easily blocks, discharging has some setbacks.But the sieve that 0.2mm is thick Net is easy to again be punched when being impacted by coal grain when powder process so that screen cloth is short for service life.

5, existing fuel pulverizing plant shattering process can produce substantial amounts of dust or fine particle, easily remain and stick to brokenly On broken cutter, crusher chamber inwall, cause the loss of sample, be unfavorable for dismounting and clean, and this remnants keep sample and also can give down Sample preparation causes the impact that accuracy is inadequate.Meanwhile, existing fuel pulverizing plant automaticity is the highest, it is often necessary to keep sample Or abandon the manual switching of sample, the labor intensity of charging operation is big.

Utility model content

The technical problems to be solved in the utility model is that the technical problem existed for prior art, and this practicality is new Type provide a kind of simple and compact for structure, can improve further pulverize sample preparation precision, improve service life of equipment for sample The flour mill of gathering and processing.

For solve above-mentioned technical problem, this utility model by the following technical solutions:

A kind of flour mill for gathering and processing of sample, including powder process chamber, described powder process chamber is provided with feeding mouth, described Being provided with rotatable powder process rotor assembly in powder process chamber, described powder process chamber rotates the inner ring surface of circumference in powder process rotor assembly On be respectively provided with pulverize sample annular disintegrating area and at the annular screen barrier of filtered sample, described annular screen barrier Be provided with circular screen, described powder process rotor assembly in powder process chamber high speed rotating and with annular disintegrating area coordinate to hit sample Discharged by circular screen after hitting pulverizing.

As further improvement of the utility model, described annular disintegrating area be profile of tooth anchor ring, described annular disintegrating area with Short lines distance between powder process rotor assembly is less than the short lines distance between circular screen and powder process rotor assembly.

As further improvement of the utility model, the rotation that described powder process rotor assembly rotates in being included in powder process chamber Dish, described rotating disk is provided with the crushing knife of protrusion, and described crushing knife is arranged near annular disintegrating area, described powder process chamber peripheral hardware Rotary drive assembly, the drive end of described rotary drive assembly is had to stretch into powder process chamber for driving rotating disk to rotate.

As further improvement of the utility model, described crushing knife is that multiple and along rotating disk circumference is average to be arranged, One end of each described crushing knife is close to annular disintegrating area and arranges, and the other end of each described crushing knife is all hingeably secured to rotation On rotating disk.

As further improvement of the utility model, described circular screen is provided with multiple sieve aperture, each described sieve aperture Diameter is incrementally increased so that sieve aperture flare by direction by little in sample.

As further improvement of the utility model, described powder process chamber is also associated with the receipts of sample after collecting pulverizing Collection assembly, described collection assembly includes that filter bag and collection chamber, one end of described filter bag connect with collection chamber, described filter bag The other end passes through at annular screen barrier and powder process chamber, so that the air-flow formed when powder process rotor assembly rotates is by annular Screen cloth is discharged by filter bag after entering filter bag.

As further improvement of the utility model, being additionally provided with filter bag and clean assembly at described filter bag, described filter bag cleans Assembly includes that more than one high pressure nozzle arranged towards filter bag, described high pressure nozzle connect high-pressure air source for towards filter bag outer wall Jet is so that filter bag completes blanking and cleans after producing vibration.

As further improvement of the utility model, the lower section of described collection chamber is provided with abandons sample passage and the passage that keeps sample, The discharge end of described collection chamber is provided with discharge nozzle, and described discharge nozzle is arranged on a sample channel switching mechanism, described discharging Pipe sample channel switching mechanism be rotated by with abandon sample passage or the passage UNICOM that keeps sample.

As further improvement of the utility model, at described feeding mouth, it is provided with material bin, the feed end of described material bin It is provided with one and keeps sample and clean sample blanking operation for sample being divided into the riffle sampler keeping sample and cleaning sample to be respectively completed.

As further improvement of the utility model, the feeding end of described collection chamber be provided with collection control valve assembly for Beat opening/closing collection chamber.

As further improvement of the utility model, described collection chamber arranges more than one vibrations blanking assembly.

Compared with prior art, the utility model has the advantage of:

1, the flour mill for gathering and processing of sample of the present utility model, by conventional by cutting between powder process rotor and screen cloth Cut, rubbing powder process changes multiple impact into and crushes powder process.In operation, circular screen no longer undertakes the function of grinding flour, makes Obtaining circular screen and not be used in huge abrasion friction power of bearing, circular screen abrasion is little, and service life is long, reduces maintenance cost, Powder process work efficiency has been effectively ensured.The powder process operating type that the most this shock is broken, even if powder process rotor assembly occurs one Fixed abrasion, nor affects on the normal use of flour mill, powder process work efficiency has also been effectively ensured, sample has finally been effectively ensured Test accuracy.

2, the flour mill for gathering and processing of sample of the present utility model, even if run into big size sample, powder process rotor group Part can drive sample motion until repeatedly clashing into broken, and this makes powder process rotor assembly will not cause because of big size sample to turn Cutter is stuck, motor burns machine equivalent risk, and the effective further ensuring powder process operation is carried out.

3, the flour mill for gathering and processing of sample of the present utility model, when solving the sample that in preparing, water is bigger, screen cloth holds Susceptible to plugging problem.Air-flow wind path can be formed so that airflow scouring sieve aperture can be there is at circular screen always, thus have during operation Effect prevents circular screen to be blocked.Further, due to the formation of wind path so that in powder process chamber, a part of aqueous vapor is discharged with air-flow, also Effectively reduce the viscosity of powder process chamber indoor sample, thus also reduce the probability that circular screen is blocked, sample has been effectively ensured Final test accuracy.Meanwhile, this also makes sample quickly to discharge in powder process chamber, and sample is difficult to residual and adheres to, no The loss of sample can be caused, test accuracy that sample final has also been effectively ensured.

4, the flour mill for gathering and processing of sample of the present utility model, the setting that crushing knife is hinged so that crushing knife is in rotation Turn luck action potential bigger, clash into crushing effect more preferably；And when crushing knife runs into relatively big and difficulty is broken bulky grain sample, Crushing knife can carry out certain yielding, prevent crushing knife overload and damage or flour mill overload and power-off.

5, the flour mill for gathering and processing of sample of the present utility model, is designed as tubaeform by sieve aperture, one end that bore is little Can guarantee that sample filtering dimensional requirement, one end that bore is big can guarantee that smooth discharging.This can be designed so that circular screen was both Thickness can be increased, it is ensured that the intensity of circular screen, can guarantee that again filtering accuracy and discharging speed simultaneously.

6, the flour mill for gathering and processing of sample of the present utility model, designs filter bag by design at screen cloth, and one is pole Improve greatly air-flow and pass through the speed in powder process chamber, when solving the sample that in preparing, water is bigger further, screen cloth easily blocks Problem.Two is that the air-flow of quickly flowing further increases sample and goes out sample speed in powder process chamber, thus is effectively increased Sample collection rate, has been effectively ensured the result of the test that sample is final.

7, the flour mill for gathering and processing of sample of the present utility model, cleans assembly by design filter bag, the most effectively Improve sample collection rate, the most this high pressure blow-gas produces the cleaning mode of vibration, the most efficiently, extends the use of filter bag Life-span.

8, the flour mill for gathering and processing of sample of the present utility model, utilizes riffle sampler to be divided into by sample and keeps sample and clearly Wash sample, first cleaning sample is put in material bin, carry out primary washing and cleaning operation, send through abandoning sample passage after having collected cleaning sample Go out；Then will keep sample puts in material bin, completes sample preparation crushing operation, sends through the passage that keeps sample after collection.By for the first time Washing and cleaning operation, it becomes possible to avoid sample that the phenomenon sticked occurs the most in the channel as far as possible, well ensure that sample preparation Accuracy；Whole cleaning and the operation that keeps sample are automatically performed, and greatly reduce labor intensity.

Accompanying drawing explanation

Fig. 1 is this utility model main TV structure principle schematic when concrete application.

Fig. 2 is the structural principle schematic diagram of powder process chamber in this utility model.

Fig. 3 is the side-looking structural principle schematic diagram of Fig. 2.

Fig. 4 is the partial structurtes principle schematic of circular screen in this utility model.

Marginal data:

1, powder process chamber；10, rotary drive assembly；11, feeding mouth；12, annular disintegrating area；13, annular screen barrier；2, system Powder rotor assembly；21, rotating disk；22, crushing knife；3, circular screen；31, sieve aperture；4, collection assembly；41, filter bag；42, collect Chamber；421, control valve assembly is collected；422, vibrations blanking assembly；43, discharge nozzle；5, filter bag cleans assembly；6, sample passage is abandoned； 7, keep sample passage；8, sample channel switching mechanism；9, material bin；91, riffle sampler.

Detailed description of the invention

Below with reference to Figure of description and specific embodiment, this utility model is described in further details.

As shown in Figures 1 to 4, this utility model provides a kind of flour mill for gathering and processing of sample, including powder process chamber 1, powder process chamber 1 is provided with feeding mouth 11, is provided with rotatable powder process rotor assembly 2 in powder process chamber 1, and powder process chamber 1 is in system Powder rotor assembly 2 rotates to be respectively provided with on the inner ring surface of circumference pulverizes the annular disintegrating area 12 of sample and for filtered sample Annular screen barrier 13, be provided with circular screen 3, powder process rotor assembly 2 high speed rotating in powder process chamber 1 at annular screen barrier 13 And coordinate to be discharged by circular screen 3 after sample is clashed into pulverizing with annular disintegrating area 12.That is: when needs powder process operation, Sample enters in powder process chamber 1 at feeding mouth 11, now powder process rotor assembly 2 high speed rotating in powder process chamber 1, clashes into broken Broken sample also drives sample motion, and the annular disintegrating area 12 that the sample of motion is got rid of to powder process chamber 1 inner ring surface again is enterprising One step is knocked broken, circulates according to this, until sample is knocked is broken into applicable circular screen 3 by after the powdery that requires, from Discharge at circular screen 3.By the most special scientific design, have the advantage that

One is the technical solution of the utility model hinge structure, directly changes pulverization principle, by conventional by system Shearing between powder rotor and screen cloth, rubbing powder process change multiple impact into and crush powder process, mainly by powder process rotor during work Annular disintegrating area 12 on assembly 2 and powder process chamber 1 inner ring surface reaches crushing effect to sample multiple impact.In operation, Circular screen 3 no longer undertakes the function of grinding flour, is also not involved in concrete broken pulverizing process, and mainly undertakes sample Filtering function.This makes circular screen 3 not be used in and bears huge abrasion friction power, and circular screen 3 weares and teares little, service life Long, reduce maintenance cost, powder process work efficiency has been effectively ensured.

Two is the powder process operating type that this shock is broken, even if powder process rotor assembly 2 occurs necessarily to wear and tear, nor affects on The normal use of flour mill, has also been effectively ensured powder process work efficiency, the test accuracy of sample has finally been effectively ensured.

Three is this operating type, even if run into big size sample, powder process rotor assembly 2 may can not in the very first time By this sample broke, but still can drive sample motion until repeatedly clashing into broken, this makes the powder process rotor assembly 2 will not be because of greatly Size sample and cause that rotor is stuck, motor burns machine equivalent risk, the effective further ensuring powder process operation is carried out.

Four be this operating type when solving the bigger sample of water in preparation screen cloth hold susceptible to plugging problem.During operation, The powder process rotor assembly 2 of high speed rotating forms air-flow wind path in making powder process chamber 1, it may be assumed that by the powder process rotor of high speed rotating The impact of assembly 2, at feeding mouth 11 in sucking-off large quantity of air entrance powder process chamber 1, then can be discharged by circular screen 3.By Formation in wind path so that can always there is airflow scouring sieve aperture 31 at circular screen 3 so that may just be bonded in sieve aperture 31 The trickle sample at place is entrained by the flow of air again at once, thus effectively prevents circular screen 3 to be blocked.Further, due to the formation of wind path, make In powder process chamber 1 a part of aqueous vapor discharge with air-flow, also effectively reduce the viscosity of sample in powder process chamber 1, thus also drop The probability that low circular screen 3 is blocked, has been effectively ensured the test accuracy that sample is final.Meanwhile, this also makes sample energy quickly Discharging in powder process chamber 1, sample is difficult to residual and sticks to, on powder process rotor assembly 2, powder process chamber 1 inwall, not result in The loss of sample, has also been effectively ensured the test accuracy that sample is final.

Further, in the preferred embodiment, annular disintegrating area 12 is profile of tooth anchor ring, improves annular disintegrating area 12 further Shock crushing effect to sample, powder process effect is more preferable, improves powder process work efficiency.Meanwhile, annular disintegrating area 12 and powder process Short lines distance between rotor assembly 2 less than the short lines distance between circular screen 3 and powder process rotor assembly 2, this Make between circular screen 3 and powder process rotor assembly 2, not to be easily formed shearing, friction, extend the use of circular screen 3 further Life-span.In the present embodiment, the area of annular disintegrating area 12 accounts for the 3/4 of whole powder process chamber 1 inwall anchor ring area, remainder 1/4 Anchor ring area is then the area in annular screen barrier 13, and this embodiment defines large-area disintegrating area, shock is effectively ensured Broken powder process operation is efficiently carried out, and the screen cloth district of little area also further ensures the safety of circular screen 3, the most further Extend the service life of circular screen 3.

Further, in the preferred embodiment, the rotating disk 21 that powder process rotor assembly 2 rotates in being included in powder process chamber 1, rotation Rotating disk 21 is provided with the crushing knife 22 of protrusion, and crushing knife 22 is arranged near annular disintegrating area 12, and powder process chamber 1 is externally provided with rotation and drives Dynamic assembly 10, the drive end of rotary drive assembly 10 stretches into powder process chamber 1 for driving rotating disk 21 to rotate.During powder process, rotate Drive assembly 10 to drive rotating disk 21 high speed rotating, and make the crushing knife 22 also high speed rotating in rotating disk 21 to carry out shock Powder crushing process operation.

As shown in Figure 2 and Figure 3, further, in the preferred embodiment, crushing knife 22 is multiple and along rotating disk 21 circumference Average layout, one end of each crushing knife 22 is close to annular disintegrating area 12 and arranges, and the other end of each crushing knife 22 is the most hinged It is fixed in rotating disk 21.Multiple crushing knifes 22 can frequently impact, and forms more preferable crushing effect.Meanwhile, this hinged setting Put so that crushing knife 22 motion potential energy when rotated is bigger, clashes into crushing effect more preferably；And when crushing knife 22 run into relatively big and During the bulky grain sample that difficulty crushes, crushing knife 22 can carry out certain yielding, prevents crushing knife 22 from transshipping and damaging or powder process Machine transships and power-off.

As shown in Figure 4, further, in the preferred embodiment, circular screen 3 is provided with multiple sieve aperture 31, each sieve aperture 31 Diameter incrementally increased so that sieve aperture 31 flare by direction by little in sample.Have described that existing powder process in the introduction There is screen cloth and easily block and the contradiction of screen cloth rapid wear in device.To this end, sieve aperture 31 is designed as tubaeform by this utility model, bore is little One end can guarantee that sample filtering dimensional requirement, one end that bore is big can guarantee that smooth discharging.Therefore this can be designed so that ring Shape screen cloth 3 can increase thickness, it is ensured that the intensity of circular screen 3, can guarantee that again filtering accuracy and discharging speed simultaneously.

As shown in Figure 1 to Figure 3, further, in the preferred embodiment, powder process chamber 1 is also associated with after collecting pulverizing The collection assembly 4 of sample, collection assembly 4 includes filter bag 41 and collection chamber 42, and one end of filter bag 41 connects with collection chamber 42, The other end of filter bag 41 connects with powder process chamber 1 by annular screen barrier 13, so that formed when powder process rotor assembly 2 rotates Air-flow is discharged by filter bag 41 after entering filter bag 41 by circular screen 3.By arranging filter bag 41 so that powder process rotor assembly 2 revolves The air-flow formed when turning can be discharged rapidly at filter bag 41, and due to after powder process the diameter of sample more than the hole of filter bag 41 Footpath, sample can't discharge at filter bag 41, and completes sedimentation under deadweight and collect.This design one is to greatly improve air-flow By the speed in powder process chamber 1, further increase air-flow and take away steam and air-flow in powder process chamber 1 and take away and be bonded in sieve aperture The efficiency of sample at 31, when solving the sample that in preparing, water is bigger further, screen cloth holds susceptible to plugging problem.Two is quickly to flow Dynamic air-flow further increases sample and goes out sample speed in powder process chamber 1 so that sample can quickly arrive collection chamber 42 and enter Row deposition, which is no longer necessary to use bigger negative-pressure adsorption sample, and sample also will not be discharged at filter bag 41, thus effectively Improve sample collection rate, result of the test that sample final has been effectively ensured.

As it is shown in figure 1, further, in the preferred embodiment, being additionally provided with filter bag and clean assembly 5 at filter bag 41, filter bag cleans Assembly 5 includes that more than one high pressure nozzle arranged towards filter bag 41, high pressure nozzle connect high-pressure air source for outside filter bag 41 Wall jet is so that filter bag 41 completes blanking and cleans after producing vibration.By this design, it is possible to will be attached in time in filter bag 41 A small amount of sample on wall cleans in time and deposits to collection chamber 42, is effectively increased sample collection rate further.The most this High pressure blow-gas produces the cleaning mode of vibration, the most efficiently, it is not necessary to uses apparatus directly to pat filter bag 41, extends filter bag 41 Service life.

As it is shown in figure 1, further, in the preferred embodiment, the lower section of collection chamber 42 is provided with and abandons sample passage 6 and keep sample logical Road 7, the discharge end of collection chamber 42 is provided with discharge nozzle 43, and discharge nozzle 43 is arranged on a sample channel switching mechanism 8, discharge nozzle 43 sample channel switching mechanism 8 be rotated by with abandon sample passage 6 or passage 7 UNICOM that keeps sample.It is provided with at feeding mouth 11 Material bin 9, the feed end of material bin 9 is provided with one and stays to be respectively completed for sample is divided into the riffle sampler 91 keeping sample and cleaning sample Sample and cleaning sample blanking operation.Utilize riffle sampler 91 to be divided into by sample keep sample and clean sample, first cleaning sample is put into system In powder chamber 1, carry out primary washing and cleaning operation, send through abandoning sample passage 6 after having collected cleaning sample；Then will keep sample and put into In powder process chamber 1, complete broken powder process operation, send through the passage 7 that keeps sample after collection.By first time washing and cleaning operation, it becomes possible to Avoid sample that the phenomenon sticked occurs the most in the channel as far as possible, well ensure that the accuracy of sample preparation；Whole cleaning Operation is automatically performed with keeping sample, and greatly reduces labor intensity.In the present embodiment, riffle sampler 91 is riffle, it is possible to as far as possible Ensure sample of material come in after uniformity and representativeness of sample.Meanwhile, by arranging sample channel switching mechanism 8 so that this Flour mill automaticity is high, it is not necessary to carrying out keeping sample or abandoning the manual switching of sample, the labor intensity of charging operation is little, and powder process is imitated Rate is high.When actually used, can do, after selecting according to actual needs once to clean, the sample preparation operation that keeps sample several times, it is also possible to often Once keep sample sample preparation time carry out a washing and cleaning operation.

As it is shown in figure 1, further, in the preferred embodiment, the feeding end of collection chamber 42 is provided with collection control valve assembly 421 for beating opening/closing collection chamber 42.More than one vibrations blanking assembly 422 is set in collection chamber 42.Lead at sample When road switching mechanism 8 carries out passage switching, collection control valve assembly 421 can be first passed through and close collection chamber 42 so that sample Will not run off or go here and there sample.Utilizing the vibrations that vibrations blanking assembly 422 produces, the sample that order sticks on collection chamber 42 inwall is complete Subordinate falls, thus improves the precision pulverizing sample preparation.

Below being only preferred implementation of the present utility model, protection domain of the present utility model is not limited merely to above-mentioned Embodiment, all technical schemes belonged under this utility model thinking belong to protection domain of the present utility model.It is right to it should be pointed out that, For those skilled in the art, without departing from the some improvements and modifications under this utility model principle premise, Should be regarded as protection domain of the present utility model.

Claims (11)

1., for a flour mill for gathering and processing of sample, including powder process chamber (1), described powder process chamber (1) is provided with feeding mouth (11), it is provided with rotatable powder process rotor assembly (2) in described powder process chamber (1), it is characterised in that described powder process chamber (1) It is respectively provided with on the inner ring surface that powder process rotor assembly (2) rotates circumference and pulverizes the annular disintegrating area (12) of sample and be used for The annular screen barrier (13) of filtered sample, described annular screen barrier (13) place is provided with circular screen (3), described powder process rotor assembly (2) in powder process chamber (1) high speed rotating and with annular disintegrating area (12) coordinates with by sample clash into pulverizing after pass through annular screen Net (3) is discharged.

Flour mill for gathering and processing of sample the most according to claim 1, it is characterised in that described annular disintegrating area (12) For profile of tooth anchor ring, the short lines distance between described annular disintegrating area (12) and powder process rotor assembly (2) is less than circular screen (3) the short lines distance and between powder process rotor assembly (2).

Flour mill for gathering and processing of sample the most according to claim 2, it is characterised in that described powder process rotor assembly (2) rotating disk (21) rotated in being included in powder process chamber (1), described rotating disk (21) is provided with the crushing knife (22) of protrusion, Described crushing knife (22) is arranged near annular disintegrating area (12), and described powder process chamber (1) is externally provided with rotary drive assembly (10), institute State the drive end of rotary drive assembly (10) to stretch into powder process chamber (1) and be used for driving rotating disk (21) to rotate.

Flour mill for gathering and processing of sample the most according to claim 3, it is characterised in that described crushing knife (22) is many Individual and along rotating disk (21) circumference is average arranges, one end of each described crushing knife (22) is close to annular disintegrating area (12) and sets Putting, the other end of each described crushing knife (22) is all hingeably secured in rotating disk (21).

Flour mill for gathering and processing of sample the most as claimed in any of claims 1 to 4, it is characterised in that described Circular screen (3) is provided with multiple sieve aperture (31), and the diameter of each described sieve aperture (31) is progressively increased by little by direction in sample Big so that sieve aperture (31) flare.

Flour mill for gathering and processing of sample the most as claimed in any of claims 1 to 4, it is characterised in that described Powder process chamber (1) is also associated with the collection assembly (4) of sample after collecting pulverizing, and described collection assembly (4) includes filter bag (41) and collection chamber (42), one end of described filter bag (41) connects with collection chamber (42), the other end of described filter bag (41) Connected with powder process chamber (1) by annular screen barrier (13) place, so that the air-flow formed when powder process rotor assembly (2) rotates passes through Circular screen (3) is discharged by filter bag (41) after entering filter bag (41).

Flour mill for gathering and processing of sample the most according to claim 6, it is characterised in that described filter bag (41) place also sets Having filter bag to clean assembly (5), described filter bag cleans assembly (5) and includes more than one high pressure nozzle arranged towards filter bag (41), Described high pressure nozzle connects high-pressure air source for towards filter bag (41) outer wall jet so that filter bag (41) produces after vibrating completes blanking Clean.

Flour mill for gathering and processing of sample the most according to claim 6, it is characterised in that described collection chamber (42) Lower section is provided with abandons sample passage (6) and the passage that keeps sample (7), and the discharge end of described collection chamber (42) is provided with discharge nozzle (43), described Discharge nozzle (43) is arranged on a sample channel switching mechanism (8), and described discharge nozzle (43) is at sample channel switching mechanism (8) Be rotated by with abandon sample passage (6) or the passage that keeps sample (7) UNICOM.

Flour mill for gathering and processing of sample the most according to claim 8, it is characterised in that described feeding mouth (11) place sets Material bin (9), the feed end of described material bin (9) is had to be provided with one for sample is divided into the riffle sampler (91) keeping sample and cleaning sample Keep sample and clean sample blanking operation to be respectively completed.

Flour mill for gathering and processing of sample the most according to claim 6, it is characterised in that described collection chamber (42) Feeding end be provided with collection control valve assembly (421) for beating opening/closing collection chamber (42).

11. flour mills for gathering and processing of sample according to claim 6, it is characterised in that described collection chamber (42) On more than one vibrations blanking assembly (422) are set.