CN102359888B - Iron ore sampling and sample making method and system - Google Patents
Iron ore sampling and sample making method and system Download PDFInfo
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- CN102359888B CN102359888B CN201110273887.8A CN201110273887A CN102359888B CN 102359888 B CN102359888 B CN 102359888B CN 201110273887 A CN201110273887 A CN 201110273887A CN 102359888 B CN102359888 B CN 102359888B
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Abstract
The invention discloses an iron ore sampling and sample making method, which comprises the following steps of: 1) sampling; 2) crushing: crushing the samples taken in the first step; 3) splitting: inputting the taken samples crushed in the second step into a splitting machine to be split; and 4) indoor sample making. The invention also discloses an iron ore sampling and sample making system, which comprises an ore feeding hopper, wherein a first belt conveyor corresponding to the ore feeding hopper is arranged at the lower part of the ore feeding hopper, the tail end of the first belt conveyor corresponds to a crude crushing machine, a material outlet of the crude crushing machine is connected with a fine crushing machine through a second belt conveyor, and the fine crushing machine is connected with the splitting machine through a third belt conveyor. The defects of a spooning method and a well digging method are fundamentally overcome by a reverse shoveling digging machine sampling method, and in addition, the method has the advantages that the sampling speed is high, the sample quantity is large, and the representativeness is high. Through production test and through the verification, analysis and comparison in various aspects, the system is used for carrying out large-batch sampling and sample making on large-block materials and outsourcing ores, and the samples which really reflect general materials can be obtained.
Description
Technical field
The present invention relates to a kind of sampling iron ore method and system.
Background technology
Applicant has relatively large outsourcing iron ore every year.The lumpiness of iron ore is between 0～350mm.A link of outsourcing iron ore most critical is that the ferrous grade of iron ore and relevant quality index are detected, and accuracy of detection is directly connected to the economic benefit of outsourcing iron ore.
Link important in testing process is taken out sample exactly from many article.Sampling is exactly the method by science, the process of taking out sub-fraction material from large batch materials.This sub-fraction material no matter in nature, form and can represent raw material.
Existing equipment can only the less sample of the amount of meeting, and particle is smaller, cannot meet existing needs.Generally adopt at present artificial division mode, lack of homogeneity, labour intensity is large, and efficiency is low, representative poor.
As the amount many (batch has 3000～10000 tons) of tested material (iron ore), granularity large (generally between 0～350mm), and during material skewness, according to small-sample-size formula, determine suitable sample amount, sampling amount is larger, by manually getting sample preparation, be difficult to prove effective, the representativeness that guarantees sample has certain difficulty, needs to explore a set of other detection method and system for this reason.
Summary of the invention
The object of the invention is, for overcoming above-mentioned the deficiencies in the prior art, provides a kind of sampling iron ore method and system, and the method and system have that sample rate is fast, sample amount large, representative strong, can access the overall material of comparison actual response sample,
For achieving the above object, the present invention adopts following technical proposals:
A sampling iron ore method, comprises the following steps:
1) sampling;
2) fragmentation, by step 1) sampling broken;
3) division, by step 2) broken sampling input contracting device division processing;
4) indoor sample preparation.
Described step 1) sampling adopts the sampling of crawler type backhoe [shovel, sampling shovel quarrel width is 1 meter, scraper bowl is 1 meter deeply, guaranteed being got of 350～0 millimeters of materials, both can at length direction, layout as required, can on thickness direction, take as required again, until dig the bottom of material; Take out sample and put into the automobile that holds sample ore.
Described step 2) the sampling sample that is broken in is evenly poured at a slow speed 3000 * 2000mm suitable for reading into forklift, end opening 1000 * 800mm, high 1200mm funnel, with 1200mm belt, be transported to jaw crushing crusher machine, this jaw crusher gape is adjusted to 120mm, with 800mm belt, be transported to two sections of type jaw crushing crusher machines in small, broken bits again, this type jaw crusher gape in small, broken bits is adjusted to 30mm.
Described step 3) division in comprises the following steps:
1. broken through two-stage, the ore that granularity is not more than 30mm by belt filled system evenly to the top of contracting device hopper;
2. ore is taken advantage of a situation and is dropped to first order division lattice, every grade of division lattice are comprised of 6 identical grid side by side, because the fair water fin direction of each grid is different, wherein have the ore of three grid to banish backward, the ore of other three grid is banished forward, owing to banishing forward and backward the grid of ore, size is identical, quantity equates, alternate layout, banishes forward with the ore of banishing backward and equates, respectively accounts for 1/2 of whereabouts, top ore;
The ore of 3. forwards banishing, by one section of bridge insert, continues to banish second level division lattice downwards; Identical with upper level division, there is 1/2 ore to banish rear, there is 1/2 ore to banish the place ahead;
4. with this opinion, push away, ore is by 8 divisions, and each division 1/2, is 1/256 by 8 division ratios;
5. 1/256 sample ore after 8 divisions, installs in sample cell; After division, general 100～200 kilograms of the reservation sample amount of 30～0 millimeters, takes back the indoor sample preparation that continues again.
A kind of sampling iron ore system, comprise to mineral aggregate bucket, to mineral aggregate bucket bottom, be provided with the first belt feeder corresponding thereto, the end of the first belt feeder is corresponding with boulder crusher, boulder crusher discharging opening is connected with fine crusher by the second belt feeder, and fine crusher is connected with contracting device by the 3rd belt feeder.
Described boulder crusher and fine crusher are jaw crusher.
Described contracting device involving vibrations division system, described vibration division system is arranged on fixed frame, and vibration division system top is corresponding with belt filled device, and fixed frame bottom is fixed on footing foundation.
Described vibration division system comprises the vibration frame being obliquely installed, the top of vibration frame is provided with receiving opening, receiving opening bottom is corresponding with the first order division lattice of some grades of division lattice, in some grades of division lattice, between every adjacent two-stage, by bridge insert, be connected, on vibration frame, afterbody division lattice bottom is provided with coupled sample cell and the slag-guiding plate being obliquely installed; Described vibration frame top rear face is provided with vibrating motor, and the output shaft of vibrating motor is connected on two frames of vibration frame.
Described vibration frame comprises two longerons and some coupled crossbeams, on the two ends medial surface of described longeron, is respectively equipped with reinforcement steel plate, reinforcement steel plate place is set on longeron and is provided with the vibrating shaft and vibration axle sleeve being connected with fixed frame; Between two longeron two ends, be connected with willfully brutal.
Described vibration axle sleeve is welded on vibration frame, vibrating shaft and vibration axle sleeve interference fit.
In described every grade of division lattice, be equipped with some identical grid side by side, in each grid, be equipped with fair water fin, and every two settings towards the opposite of facing mutually the fair water fin in grid.
Described fixed frame is composed of a fixed connection by the channel-section steel of some horizontal and vertical settings, and fixed frame is connected by vibrating shaft with the vibration frame upper and lower side of vibration division system.
Determining of the exploration of mechanical sampling and method
1. mechanical sampling is explored
Crawler type backhoe [shovel enters the walking of rugged stockpile freely, and during sampling, suitable its shovel head of sampling point of distance digs bottom under can be vertically; Sampling point at a distance, its shovel head can dig out a sample groove from material bottom, is got material and automatically falls into shovel head, and the sample amount of every shovel is 2 tons of left and right, and therefore the sample representation of every has had sufficient assurance, and it is fast to have sample rate, sampling amount is large, is not subject to the feature of field condition restriction.Then, again through checking repeatedly, adopt backhoe [shovel sampling to become the first-selection of bulk materials sampling, corresponding mechanical sample-preparing system is also determined subsequently.
1) sampling method
Owing to being got the granularity of material, be: 350～0 millimeters, thickness is greater than 1 meter, is less than 1.2 meters, and stacks at storage space.Therefore sampling method can be taked the method that dips, prospect pit method, backhoe [shovel sampling method.
A. the method that dips is named again and is taken method, its essence is the sampling of digging pit in certain location, stockpile surface.When stockpile is while piling up gradually along its length, by rational layout sampling spot, can guarantee the representativeness of got gross sample; When material is through-thickness while piling up gradually, and material is when forming through-thickness and changing greatly, and top layer dips the representativeness of method by very poor.Now can only take to increase the degree of depth in sample ore hole, using a material division part of taking out as sample.
The main cause that impact dips method precision is: the 1. density of sampling net and the number of sampling spot; 2. the sampling amount of every; 3. material forms the degree of uniformity distributing along stockpile thickness direction.
B. prospect pit method its essence is in the certain location of stockpile and excavates shallow well, and then from the material digging out, division goes out a part as sample.Owing to being got material loosening, while digging a well, must carry out reliable supporting to the borehole wall, prevent borehole wall slump.
The major advantage of prospect pit method is, can be along the sampling of stockpile thickness direction, and representativeness is stronger.Shortcoming is that sampling amount is large, field conduct difficulty, and layouting can not be too many.
C. backhoe [shovel sampling method the method has been drawn the advantage of the method that dips, prospect pit method, has made up again the shortcoming of the method that dips, prospect pit method.Owing to being mechanical sampling, and sampling shovel quarrel is 1 meter, and scraper bowl is 1 meter deeply, has guaranteed being got of 350～0 millimeters of materials, both can at length direction, layout as required, can on thickness direction, take as required again, until dig the bottom of material.Therefore the great advantage of the method is that the sample representation of every is strong, and sampling amount is large, and sampling efficiency is high, saves manpower.Bulk materials sampling herein takes backhoe [shovel sampling method.
2, the calculating of the sampling amount of bulk materials
Sampling is exactly the method by science, the process of taking out sub-fraction material from large batch materials.This sub-fraction material no matter in nature, form and can represent raw material.
1. material is with the mathematical model of machine testing
If random variable of continuous type ζ has probability density
if integration
absolute convergence,
The mathematical expectation (being mean value) that is called ζ
But also to apply the small-sample-size formula of Qie Qiaote specific to the sampling of every bit
q＝kd
a
A-index, is taken as 2 according to China's practical experience;
The granularity of maximum nugget in d-sample, millimeter;
The coefficient that k-is relevant with ore properties, influence factor has: the degree of uniformity that in ore, valuable mineral distributes, distribute more inhomogeneous, k value is larger; The disseminated grain size of valuable mineral in ore, when the granularity of mineral is thicker, k value is larger; In ore, the content of valuable mineral is lower, and k value is larger; The proportion of valuable mineral granularity in ore, proportion is larger, and k value is larger; Test permissible error, permissible error is less, and k value is larger;
The concrete numerical value of k value, most of ores all between 0.02～0.5, and the most frequently used be 0.1～0.2, to concrete mineral products, determine that the method for its k value has two kinds: the one, analogy method, with reference to the existing empirical data of similar mineral products, chooses; The 2nd, test method(s), determines by test of many times.K value is carried out after sample is crushed to 20 millimeters, to us, is obviously inappropriate.Owing to sampling at the scene, a sample amount of every, all more than 2 tons, has guaranteed the representativeness of sample, therefore in order to make sample more representative, here get the maximal value 0.2 of general mine k value,, when the granularity of material is during at 350 millimeters, total minimum sample mass should be more than 24.5 tons.
Different according to the ore deposit amount of batch, total sampling amount is possibly over 24.5 tons.
Three, bulk materials gets sample preparation
By tens tons of sample ores, make several grams of sample ores, middle sample is through fragmentation, division repeatedly, finally also to, through grinding, division, just can obtain the sample (only having sample seldom, several grams or tens grams) for mineral useful component, objectionable impurities chemical examination or beneficiation test.
Fragmentation can be chosen disintegrating machine and enter type do mechanization operation, division equipment be selected to a difficult problem.Look through the data that can look into, also inquired the expert who gets sample preparation, just do not found the plant equipment to a large amount of material divisions.So, researched and developed division device.To relevant disintegrating apparatus associating, complete the sample preparation division system of bulk materials.
(1) get sample-preparing system design process flow
As requested, the outsourcing ore deposit that enters ore dressing plant arranges to land, and with the sampling of crawler type backhoe [shovel, takes out sample and puts into the automobile that holds specially sample ore, for outsourcing ore deposit sampling sample, enters outsourcing ore deposit sample preparation flow process.
Outsourcing ore deposit institute sample thief is evenly poured at a slow speed 3000 * 2000mm suitable for reading into forklift, end opening 1000 * 800mm, high 1200mm funnel, with 1200mm belt, be transported to PE600 * 900 jaw crusher (disintegrating machine gape is adjusted to 120mm) fragmentation, with 800mm belt, be transported to two-stage crushing PEX250 * 1000 type jaw crushers in small, broken bits (disintegrating machine gape is adjusted to 30mm), through 650mm belt lifting, to combining reduction device division, obtain final sample (according to the requirement at mass metrology center, in division amount of sample size situation how, can repeatedly repeat division).
Major equipment:
Be subject to ore deposit groove
2, the first belt, B=1200mm
3, boulder crusher (PE600*900 jaw crusher) power of motor 75KW weight (not comprising 16.92 tons, motor)
4, the second belt feeder, B=800mm
5, fine crusher (PEX250 * 1000)
Terrace absolute altitude 1600m power of motor 37KW weight (not comprising 7.3 tons, motor)
6, the 3rd belt feeder, B=650mm
7, contracting device (8 stacks, 8 divisions, division ratio is 1/256 for every layer of 6 sub-material mouth, the wide 96mm of each sub-material mouth).
8, crawler type backhoe [shovel
9,15 tons of dump trucks
(2) 256 sample ore contracting device structures form and division technological process
This device designs for outsourcing iron ore Mechanical Sampling and Preparation, is 8 grades of divisions, and division rank is 1/256.
The structure of contracting device forms
Contracting device is mainly comprised of belt filled system, vibration division system, vibration coupling arrangement, fixed frame etc.
Vibration division system is comprised of sample cell, division lattice, vibration frame, vibrating motor etc. again.
2, division technological process is as follows:
1. broken through two-stage, the ore that granularity is not more than 30mm by belt filled system evenly above contracting device hopper.
2. ore is taken advantage of a situation and is dropped to first order division lattice.Every grade of division is comprised of 6 identical grid side by side, because the fair water fin direction of each grid is different, wherein has the ore of three grid to banish backward, and the ore of other three grid is banished forward.Owing to banishing forward and backward the grid of ore, size is identical, quantity equates, alternate layout, banishes forward with the ore of banishing backward and equate, respectively accounts for 1/2 of whereabouts, top ore.
The ore of 3. forwards banishing, by one section of bridge insert, continues to banish second level division lattice downwards.Identical with upper level division, there is 1/2 ore to banish rear, there is 1/2 ore to banish the place ahead.
4. with this opinion, push away, ore is by 8 divisions.Each division 1/2 is 1/256 by 8 division ratios.
5. 1/256 sample ore after 8 divisions, installs in sample cell.After division, general 100～200 kilograms of the reservation sample amount (it is 90 kilograms that theory retains small-sample-size) of 30～0 millimeters, takes back the indoor sample preparation that continues again.
6. this division device has been installed vibrating motor on division framework, is beneficial to ore and evenly banishes downwards, also prevents that ore from stopping up.
3, the indoor sample preparation of material
Indoor sample preparation flow process: dry (mensuration moisture), coarse crushing, in small, broken bits, division, pair roller, division.Indoor sample preparation flow process is conventional sample preparation flow process, does not repeat them here.
The invention has the beneficial effects as follows, 1. backhoe [shovel sampling method fundamentally solved the method that dips, the deficiency of the method that digs a well, and have advantages of that sample rate is fast, sample amount large, representative strong.2, the pilot production of process, through many-sided demonstration, analysis, contrast, utilizes this system to carry out the sample preparation of getting of outsourcing ore deposit and in enormous quantities, bulk materials, can access the sample of the overall material of comparison actual response.
Accompanying drawing explanation
Fig. 1 is that the present invention gets method for making sample process flow diagram;
Fig. 2 gets sample-preparing system figure;
Fig. 3 is the vertical view of Fig. 2;
Fig. 4 is contracting device lateral plan;
Fig. 5 is the left view of Fig. 4;
Fig. 6 is A part enlarged drawing in Fig. 5;
Fig. 7 is division lattice part-structure schematic diagram;
Fig. 8 be in Fig. 7 I-I to cut-open view;
Fig. 9 be in Fig. 7 II-II to cut-open view;
Figure 10 be in Fig. 7 III-III to cut-open view;
Figure 11 be in Fig. 9, Figure 10 IV-IV to cut-open view;
Figure 12 be in Fig. 9, Figure 10 V-V to cut-open view;
Figure 13 is vibration frame structural representation;
Figure 14 be in Figure 13 I-I to cut-open view;
Figure 15 is division lattice and vibration frame assembly drawing;
Figure 16 be in Figure 15 I-I to cut-open view;
Figure 17 is stationary frame structure schematic diagram;
Figure 18 be in Figure 17 I-I to cut-open view;
Figure 19 be in Figure 17 II-II to cut-open view;
Figure 20 be in Figure 17 III-III to cut-open view;
Figure 21 is vibrating shaft structural representation;
Figure 22 is fixed frame axle sleeve structure schematic diagram;
Figure 23 is vibrating shaft nested structure schematic diagram;
Figure 24 is contracting device footing foundation structural representation;
Figure 25 be in Figure 24 I-I to cut-open view;
Figure 26 is the vertical view of Figure 24.
Wherein 1. to mineral aggregate bucket, 2. boulder crusher, 3. fine crusher, 4. contracting device, 5. the first belt feeder, 6. the second belt feeder; 7. the 3rd belt feeder, 8. fixed frame, 9. belt filled device, 10. footing foundation, 11. vibration frames, 12. receiving openings, 13. division lattice, 14. bridge inserts, 15. sample cells, 16. slag-guiding plates, 17. vibrating motors, 18. longerons, 19. crossbeams, 20. strengthen steel plate, 21. vibrating shafts, 22. vibration covers, 23. brutal willfully, 24. grid, 25. fair water fins, 26. channel-section steels, 27. framework axle sleeves.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described.
As shown in Figure 1, a kind of sampling iron ore method, comprises the following steps:
1) sampling;
2) fragmentation, by step 1) sampling broken;
3) division, by step 2) broken sampling input contracting device 4 divisions processing;
4) indoor sample preparation.
Described step 1) sampling adopts the sampling of crawler type backhoe [shovel, sampling shovel quarrel width is 1 meter, scraper bowl is 1 meter deeply, guaranteed being got of 350～0 millimeters of materials, both can at length direction, layout as required, can on thickness direction, take as required again, until dig the bottom of material; Take out sample and put into the automobile that holds sample ore.
Described step 2) sampling sample broken in is evenly poured at a slow speed 3000 * 2000mm suitable for reading into forklift, end opening 1000 * 800mm, high 1200mm funnel, with 1200mm belt, be transported to jaw crushing crusher machine, this jaw crusher gape is adjusted to 120mm, with 800mm belt, be transported to two sections of type jaw crushing crusher machines in small, broken bits again, this type jaw crusher gape in small, broken bits is adjusted to 30mm.
Described step 3) division in comprises the following steps:
1. broken through two-stage, the ore that granularity is not more than 30mm by belt filled system evenly to the top of contracting device 4 receiving openings 12;
2. ore is taken advantage of a situation and is dropped to first order division lattice, every grade of division lattice are comprised of 6 identical grid 24 side by side, because fair water fin 25 directions of each grid 24 are different, wherein have the ore of three grid to banish backward, the ore of other three grid is banished forward, owing to banishing forward and backward the grid of ore, size is identical, quantity equates, alternate layout, banishes forward with the ore of banishing backward and equates, respectively accounts for 1/2 of whereabouts, top ore;
The ore of 3. forwards banishing, by one section of bridge insert 14, continues to banish second level division lattice downwards; Identical with upper level division, there is 1/2 ore to banish rear, there is 1/2 ore to banish the place ahead;
4. with this opinion, push away, ore is by 8 divisions, and each division 1/2, is 1/256 by 8 division ratios;
5. 1/256 sample ore after 8 divisions, installs in sample cell 15; After division, general 100～200 kilograms of the reservation sample amount of 30～0 millimeters, takes back the indoor sample preparation that continues again.
As shown in Fig. 2-Figure 26, a kind of sampling iron ore system, comprise to mineral aggregate bucket 1, to mineral aggregate bucket 1 bottom, be provided with the first belt feeder 5 corresponding thereto, the end of the first belt 5 machines is corresponding with boulder crusher 2, boulder crusher discharging opening is connected with fine crusher 3 by the second belt feeder 6, and fine crusher 3 is connected with contracting device 4 by the 3rd belt feeder 7.
Described boulder crusher 2 and fine crusher 3 are jaw crusher.
Described contracting device 4 involving vibrations division systems, described vibration division system is arranged on fixed frame 8, and vibration division system top is corresponding with belt filled device 9, and fixed frame 8 bottoms are fixed on footing foundation 10.
Described vibration division system comprises the vibration frame 11 being obliquely installed, the top of vibration frame 11 is provided with receiving opening 12, receiving opening 12 bottoms are corresponding with first order division lattice in eight grades of division lattice 13, in eight grades of division lattice 13, between every adjacent two-stage, by bridge insert 14, be connected, the slag-guiding plate 16 that on vibration frame 11, afterbody division lattice bottom is provided with coupled sample cell 15 and is obliquely installed; Described vibration frame 11 top rear face are provided with vibrating motor 17, and the output shaft of vibrating motor 17 is connected on two frames of vibration frame 11.
Described vibration frame 11 comprises two longerons 18 and some coupled crossbeams 19, on the two ends medial surface of described longeron 18, be respectively equipped with and strengthen steel plate 20, reinforcement steel plate 20 places are set on longeron 18 and are provided with the vibrating shaft 21 and vibration axle sleeve 22 being connected with fixed frame 8; Between two longeron 18 two ends, be connected with willfully brutal 23.
Described vibration axle sleeve 22 is welded on vibration frame 11, vibrating shaft 21 and vibration axle sleeve 22 interference fit.
In described every grade of division lattice 13, be equipped with six identical grid 24 side by side, in each grid 24, be equipped with fair water fin 25, and every two settings towards the opposite of facing mutually the fair water fin 25 in grid 24.
Described fixed frame 8 is composed of a fixed connection by the channel-section steel 26 of some horizontal and vertical settings, and fixed frame 8 is connected by vibrating shaft 21 with vibration frame 11 upper and lower sides of vibration division system by the framework axle sleeve 27 on it.
Claims (5)
1. a sampling iron ore method, is characterized in that: comprise the following steps: 1) sampling; 2) fragmentation, the sampling of step 1) is broken; 3) division, by step 2) broken sampling input contracting device division processing; 4) indoor sample preparation;
The sampling of described step 1) adopts the sampling of crawler type backhoe [shovel, sampling shovel quarrel width is 1 meter, scraper bowl is 1 meter deeply, guaranteed being got of 350～0 millimeters of materials, can at length direction, layout as required, can on thickness direction, take as required again, until dig the bottom of material; Take out sample and put into the automobile that holds sample ore;
Division in described step 3) comprises the following steps: 1. broken through two-stage, the ore that granularity is not more than 30mm by belt filled system evenly to the top of contracting device hopper;
2. ore is taken advantage of a situation and is dropped to first order division lattice, every grade of division lattice are comprised of 6 identical grid side by side, because the fair water fin direction of each grid is different, wherein have the ore of three grid to banish backward, the ore of other three grid is banished forward, owing to banishing forward and backward the grid of ore, size is identical, quantity equates, alternate layout, banishes forward with the ore of banishing backward and equates, respectively accounts for 1/2 of whereabouts, top ore;
The ore of 3. forwards banishing, by one section of bridge insert, continues to banish second level division lattice downwards; Identical with upper level division, there is 1/2 ore to banish rear, there is 1/2 ore to banish the place ahead;
4. by that analogy, ore is by 8 divisions, and each division 1/2, is 1/256 by 8 division ratios;
5. 1/256 sample ore after 8 divisions, installs in sample cell; After division, 100～200 kilograms of the reservation sample amounts of 30～0 millimeters, take back the indoor sample preparation that continues again.
2. sampling iron ore method as claimed in claim 1, it is characterized in that, described step 2) sampling sample broken in is evenly poured at a slow speed 3000 * 2000mm suitable for reading into forklift, end opening 1000 * 800mm, high 1200mm funnel, is transported to jaw crushing crusher machine with 1200mm belt, and this jaw crusher gape is adjusted to 120mm, with 800mm belt, be transported to two sections of type jaw crushing crusher machines in small, broken bits again, this type jaw crusher gape in small, broken bits is adjusted to 30mm.
3. a sampling iron ore system, it is characterized in that: comprise to mineral aggregate bucket, to mineral aggregate bucket bottom, be provided with the first belt feeder corresponding thereto, the end of the first belt feeder is corresponding with boulder crusher, boulder crusher discharging opening is connected with fine crusher by the second belt feeder, and fine crusher is connected with contracting device by the 3rd belt feeder;
Described boulder crusher and fine crusher are jaw crusher;
Described contracting device involving vibrations division system, described vibrational system is arranged on fixed frame, and vibration division system top is corresponding with belt filled device, and fixed frame bottom is fixed on footing foundation;
Described vibration division system comprises the vibration frame being obliquely installed, the top of vibration frame is provided with receiving opening, receiving opening bottom is corresponding with the first order division lattice of some grades of division lattice, in some grades of division lattice, between every adjacent two-stage, by bridge insert, be connected, on vibration frame, afterbody division lattice bottom is provided with coupled sample cell and the slag-guiding plate being obliquely installed; Described vibration frame top rear face is provided with vibrating motor, and the output shaft of vibrating motor is connected on two frames of vibration frame.
4. sampling iron ore system as claimed in claim 3, it is characterized in that, described vibration frame comprises two longerons and some coupled crossbeams, on the two ends medial surface of described longeron, be respectively equipped with reinforcement steel plate, reinforcement steel plate place be set on longeron and be provided with the vibrating shaft and vibration axle sleeve being connected with fixed frame; Between two longeron two ends, be connected with willfully brutal; Described vibration axle sleeve is welded on vibration frame, vibrating shaft and vibration axle sleeve interference fit; In described every grade of division lattice, be equipped with some identical grid side by side, in each grid, be equipped with fair water fin, and every two settings towards the opposite of facing mutually the fair water fin in grid.
5. sampling iron ore system as claimed in claim 3, is characterized in that, described fixed frame is composed of a fixed connection by the channel-section steel of some horizontal and vertical settings, the vibration frame upper and lower side of fixed frame and vibration division system by vibrating shaft be connected.
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| CN108535049A (en) * | 2018-03-02 | 2018-09-14 | 青岛海亿特机电科技发展有限公司 | Loose unpacked material takes sample-preparing system |
| CN111537379A (en) * | 2020-05-09 | 2020-08-14 | 广东韶钢松山股份有限公司 | Method for obtaining impurity rate of broken scrap steel |
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| CN201254298Y (en) * | 2008-08-16 | 2009-06-10 | 居雍 | Lunar-landing robot launch vehicle |
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