CN86207769U - Loose packed mineral products specimen sampling device - Google Patents
Loose packed mineral products specimen sampling device Download PDFInfo
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- CN86207769U CN86207769U CN 86207769 CN86207769U CN86207769U CN 86207769 U CN86207769 U CN 86207769U CN 86207769 CN86207769 CN 86207769 CN 86207769 U CN86207769 U CN 86207769U CN 86207769 U CN86207769 U CN 86207769U
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Abstract
The utility model discloses a sample splitter used for loose packed mineral products, which aims at providing a splitter which has the advantages of easy operation and good representative division result. The utility model is composed of a tank body, a charging hopper, a discharging hopper and a transmitting mechanism, etc., which is characterized in adopting an umbrella-shaped distributor and a fan type receiving block. Test specimens achieve the aim of uniformly distributed through the centrifugal action of the distributor, and requested quantities of the test specimens can be acquired with the special designed receiving block.
Description
What the present invention relates to is condensed classification machine of bulk ore production sample, is particularly suitable for the sample divider pass of sintering deposit.
Various ore products must arrive certain degree with ore reduction earlier when carrying out physical and chemical inspection, take out the original sample of specified quantity, and through repeatedly division, taking-up at last reaches the desired consumption of physical and chemical inspection.Its objective is the inhomogeneous segregation that produces that reduces owing to the ore particles size, make the sample of obtaining have good representativeness.
Before the present invention, the division of mineral products sample in bulk adopts manual method to carry out usually.As " conical quartering " introduced among the State Standard of the People's Republic of China (GB2007-80), " grid division method ", and " riffle division method etc. ".But the ubiquitous problem of these methods is that the error of sampling is bigger, and is representative poor, and the division program is complicated, as " conical quartering ", must will pile taper shape on sample Zai Jie Net, the smooth iron plate, change heap three times repeatedly, make abundant mixing, then with the top pressing of circular cone, with four-bladed vane from depress, stockpile is divided into the quartern, get the five equilibrium at two diagonal angles, the repetitive operation several, division is to needed quantity.The whole operation process needs 8-10 minute approximately, and the division result is representative poor, and each division all must be made a contrast sample more, and material is repeatedly seething in the process dust from flying, pollution working environment.
The objective of the invention is to make a kind of easy and simple to handle, the representative good equipment of division result.
In order to realize above-mentioned requirements, designed a kind of mechanically operated division machine, this division machine comprises casing, charging hopper goes out funnel and gear train etc. and partly forms.Its principal feature is to have adopted a umbrella distributor and a fan-shaped pulp-collecting box.
With division machine of the present invention mineral products sample in bulk is carried out division and be achieved in that original sample falls on the umbrella distributor that is positioned under the charging hopper outlet through charging hopper, distributing device is driven by gear train, with constant rotating speed rotation.Under action of centrifugal force, sample is diffusing equably from distributing device, forms the material spilling band of certain width in the distributing device outside, and this band that is scattered is to be concentrically ringed endless belt with distributing device.Insert a pulp-collecting box from the casing side, be positioned at the below of material distribution endless belt, collect a certain proportion of sample, finish the purpose of division.
The concrete structure of invention is provided by following embodiment and accompanying drawing.
Fig. 1 is the division machine synoptic diagram to the sintering deposit division.
Fig. 2 is the synoptic diagram that material scatters endless belt and pulp-collecting box.
The course of work of actual division is such: earlier sintered ore is broken into the fritter of 0-5 millimeter, takes out 10 kilograms original sample in accordance with regulations and put into charging hopper (1).Stop up in order to make original sample fall Shi Buhui, the outlet diameter of charging hopper is had certain requirement, promptly must determine the size of its outlet diameter by the maximum particle size of original sample.General principle of design is that outlet diameter should be greater than 5 times of original sample maximum particle size, so when the sintering deposit maximum particle size was 5 millimeters, its outlet diameter can be got 30 millimeters.Umbrella distributor (2) be positioned at charging hopper (1) under.Distributing device (2) is driven by gear train (3), and the speed rotation with certain is outwards dispersed the original sample material that drops on above the distributing device (2) under action of centrifugal force, the annular that forms certain width in the distributing device outside band (seeing shown in Figure 2) that is scattered.The diameter of distributing device (2) and the size of rotational speed have tangible influence to the degree of uniformity of material distribution and the width of material spilling band.The rotating speed of distributing device is low more, and material is bordering on nature from distributing device and falls, and the homogeneity that material scatters is bad; The rotating speed of distributing device is high more, and material scatters evenly more, but the material spilling band is also just wide more, is not easy to the collection of division sample.The selection of distributing device diameter and rotating speed can obtain by the meter mark, but generally can obtain by experiment.For example the diameter when distributing device is 230 millimeters, and when rotating speed was 225 rev/mins, the external diameter of material spilling endless belt was about 385 millimeters.At this moment can satisfy the requirement that material evenly distributes and is convenient to collect the division sample simultaneously, gear train (3) is made up of motor and belt pulley.Also can use the motor driven gear system or other the kind of drive,, can reach certain rotating speed and get final product as long as satisfy stable drive.In addition, can be all diffusing in order to make the material of falling on the distributing device from distributing device, require the inclination angle of distributing device can not be too little.If the inclination angle is too big, be unfavorable for the uniformly dispersing of material again.For ore product in bulk, the inclination angle all can meet the demands between 35 degree-45 degree.Material can think that all original samples all are evenly distributed on the material web of an annular after centrifugal distribution, at this moment, need only the proportion requirement of division " intercepting " sample in accordance with regulations.In the practical operation, the task of " intercepting " is finished by a pulp-collecting box of placement (4) below scattering endless belt at material.In order to guarantee that collected quantity meets the regulation of division rules, then shape, size and the riding position of pulp-collecting box (4) all must be accurately.Distribution is ring-band shape as can be known according to material, and pulp-collecting box (4) must be fan-shaped.As shown in Figure 2, its central angle θ by formula θ=360 degree * η determines that η is the division ratio of regulation.When the division ratio of sintering deposit is 1/64, θ=360 degree * 1/64=5.63 degree then.Fan-shaped inner arc radius is slightly less than the interior garden radius of material distribution endless belt.Fan-shaped outer arc radius is slightly larger than the outer garden radius of material distribution endless belt.Pulp-collecting box (4) with above-mentioned geomery inserts from division box body (5), and the radially insertion that must press material distribution endless belt, and this point can be accomplished easily with forms such as being fixed on last gathering sill of casing (5) or drawer-type structure.Position after simultaneously pulp-collecting box (4) inserts will be in the below of distributing device (2), more precisely will material distribute endless belt below.The pulp-collecting box (4) that possesses above condition just can be collected the sample ore that satisfies the division quantitative requirement.The sample ore that does not enter pulp-collecting box (4) is collected by going out funnel (6), guides in the container of machine outside.Going out funnel (6) diameter suitable for reading must not be less than the distribute outside diameter of endless belt of material.
Advantage of the present invention is to simplify the operation and improve the division quality. Replace manual division with contracting device, its division time reduced to 1 minute by 8 minutes. But the major advantage of contracting device is the precision height of division, and the division result has good representativeness. In order to examine or check the division effect of contracting device, the mechanical division of sintering deposit and manual division are compared each division all get two samples, one is former state, one is the contrast sample. Examine or check the difference of these two sample results of laboratory test, i.e. as can be known division result's segregation degree. Table 1 is the result of laboratory test of manual division. Table 3 is results of laboratory test of mechanical division.
As can be known for the chemical examination that contains the Fe amount, the deviation of manual division is bigger 5.5 times than the deviation of mechanical division from experimental result; For Sio
2: deviation is big 3 times; For Cao, deviation is big 3.65 times.So adopt mechanical division can increase substantially precision.And when adopting manual division, all need to stay a contrast sample to chemically examine, to reduce sampling error at every turn, adopt after the division machine, can reduce nearly 2000 of unnecessary contrast sample every year, can save a large amount of medicine and artificial, has tangible economic benefit.In addition, owing to adopted the division machine, its division process is finished in casing, can avoid that material seethes the environmental pollution that causes in the manual division process.
Claims (3)
1, a kind of sample splitter that is used for mineral products in bulk comprises casing (5), and charging hopper (1) goes out funnel (6) and gear train (3), it is characterized in that also having a umbrella distributor (2) and a fan-shaped pulp-collecting box (4).
2, division machine as claimed in claim, the inclination angle that it is characterized in that umbrella distributor (2) are 35 degree-45 degree.
3, division machine as claimed in claim 1, the fan-shaped central angle θ that it is characterized in that fan-shaped pulp-collecting box (4) be by formula: θ=360 degree * η determine that η is the division ratio.The outer arc radius of pulp-collecting box (4) is slightly larger than the outer garden radius of material spilling endless belt, and the inner arc radius of pulp-collecting box (4) is slightly less than the interior garden radius of material spilling endless belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86207769 CN86207769U (en) | 1986-10-21 | 1986-10-21 | Loose packed mineral products specimen sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86207769 CN86207769U (en) | 1986-10-21 | 1986-10-21 | Loose packed mineral products specimen sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN86207769U true CN86207769U (en) | 1987-12-05 |
Family
ID=4810127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 86207769 Withdrawn CN86207769U (en) | 1986-10-21 | 1986-10-21 | Loose packed mineral products specimen sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN86207769U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104614198A (en) * | 2015-01-16 | 2015-05-13 | 长安大学 | Quartering based automatic sampler for engineering aggregate and sampling method of engineering aggregate |
| CN104897440A (en) * | 2015-04-28 | 2015-09-09 | 煤炭科学技术研究院有限公司 | Sample preparation contracting dividing device |
| CN104964859A (en) * | 2015-06-08 | 2015-10-07 | 煤炭科学技术研究院有限公司 | Oscillating type rotary dividing apparatus |
-
1986
- 1986-10-21 CN CN 86207769 patent/CN86207769U/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104614198A (en) * | 2015-01-16 | 2015-05-13 | 长安大学 | Quartering based automatic sampler for engineering aggregate and sampling method of engineering aggregate |
| CN104614198B (en) * | 2015-01-16 | 2017-04-12 | 长安大学 | Quartering based automatic sampler for engineering aggregate and sampling method of engineering aggregate |
| CN104897440A (en) * | 2015-04-28 | 2015-09-09 | 煤炭科学技术研究院有限公司 | Sample preparation contracting dividing device |
| CN104897440B (en) * | 2015-04-28 | 2017-09-22 | 煤炭科学技术研究院有限公司 | Sample preparation reduction device |
| CN104964859A (en) * | 2015-06-08 | 2015-10-07 | 煤炭科学技术研究院有限公司 | Oscillating type rotary dividing apparatus |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |