CN103480579A - Screening and weighing device and screening and weighing method for granular rock particle size distribution - Google Patents
Screening and weighing device and screening and weighing method for granular rock particle size distribution Download PDFInfo
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- CN103480579A CN103480579A CN201310473711.6A CN201310473711A CN103480579A CN 103480579 A CN103480579 A CN 103480579A CN 201310473711 A CN201310473711 A CN 201310473711A CN 103480579 A CN103480579 A CN 103480579A
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Abstract
The invention relates to a screening and weighing device and screening and weighing method for granular rock particle size distribution. The screening and weighing device comprises a screening device connected with a feeder and a weighing device connected with the screening device, and is characterized in that the screening device comprises a steel-structure frame, guide rails arranged on a horizontal ground base, a push-pull flat block in rolling connection with the guide rails, a reciprocating type vibrating table fixed to the push-pull flat block through bolts and a rectangular stacking combination type bushing screen, and a lifting mechanism is arranged on the upper portion of the steel-structure frame. The screening and weighing device is used for screening and weighing the granular rock particle size distribution to screen and weigh granular rock samples of a 0-10 particle class obtained from a blast heap or a rock discharging field , the percentage content of the granular rocks of the particle glass range in the blast heap or the rock discharging field is confirmed, and important basic data are provided for optimizing mine blasting parameters, determining economical and reasonable explosive unit consumption and explosive payload and carrying out rock discharging field slope stability study.
Description
Technical field
The present invention relates to a kind of screening weighing technology field, particularly relate to screening meausring apparatus and screening weighing technique that a kind of prose style free from parallelism rock grain size distributes.
Background technology
In the recovery process of ore deposit, explosion and the operation of row's rock are two important process procedures in Production of Strip Mine in the open.All by granularity, different prose style free from parallelism rocks forms the Pai Yanchang that the quick-fried heap that explosion forms, the operation of row's rock form, and the size distribution of prose style free from parallelism rock has certain feature.
Study the prose style free from parallelism rock grain size distribution characteristics of quick-fried heap, whether distribution characteristics and the content of particularly determining the following fine-graded prose style free from parallelism rock of 100mm particle diameter can exist rock to cross crushing phenomenon for analyzing mine blasting, explosive specific charge and the explosive payload of determining economical rationality provide important basic data, there is very important practical significance to improving the mine blasting quality, increasing economic efficiency.
The prose style free from parallelism rock grain size distribution characteristics of research row rock field, especially the following fine-graded rock distribution feature of 100mm particle diameter and content, to carrying out the physico-mechanical properties experiment of prose style free from parallelism rock, deterministic force mathematic(al) parameter and the row's rock field prose style free from parallelism Analyzing method of rock slope stability analysis basic data that is absolutely necessary.
At present, carrying out the more advanced method of determination and analysis for the prose style free from parallelism rock grain size distribution of quick-fried heap and row rock field is the photographic imagery analytical method.Take pictures on the spot at quick-fried heap or row scene, rock field, then utilize Computer aided analysis to carry out analyze and grain size analysis to the image picture, finally obtain the granularmetric composition of each grade of prose style free from parallelism rock.The photographic imagery analytical method can be understood the image information that the photo of taking pictures provides, and obtains the degree of the prose style free from parallelism rock of the above different-grain diameter of 100mm in quick-fried heap or row rock field, can automatically draw out prose style free from parallelism rock grain size distribution curve.But, exist an apparent in view weak point by the photographic imagery analytical method, can accurately not determine the actual percentage content that particle diameter is less than the following prose style free from parallelism rock of 100mm.This is because fine-graded rock particles has in the gap much be embedded between the sillar that particle diameter is larger, can't absorb this part fine-graded rock in the photo of taking pictures exists, thereby be less than the rock of 100mm for particle diameter, analysis software solution is exactly read the degree of this part rock, the size distribution of size distribution curve disappearance 0～100mm particle diameter rock of having done, and the particle size distribution characteristic of this part rock is very important exactly.In addition, according to retrieval and to laboratory and the investigation result of producing factories and miness, show, at present in laboratory or the bulk material screening used of factories and miness product quality station and the weighing equipment equipment that is independent operating, the material of the size fractionated that bulk material obtains after screening is collected with collecting box, adopts the different mode such as operating personnel's carrying, Pipeline transport or rubber conveyer conveying that the bulk material after screening is transported on weighing equipment and carries out weighing.
Summary of the invention
The objective of the invention is for the existing deficiency of prior art, and the screening meausring apparatus that provides a kind of prose style free from parallelism rock grain size to distribute and screening weighing technique, this device adopts and stacks the combination bushing screen, can the rock sample of the prose style free from parallelism rock from quick-fried heap or 0～100mm grade of obtaining of row rock field be sieved and weighing, determine the degree of this grade scope prose style free from parallelism rock in quick-fried heap or row rock field, and then can draw the particle size distribution characteristic of this grade scope prose style free from parallelism rock, made up the defect of understanding the image information technology of taking pictures with analysis software.
The objective of the invention is to realize by following technical proposals:
The screening meausring apparatus that prose style free from parallelism rock grain size of the present invention distributes, comprise the screening plant be connected with batcher, the meausring apparatus be connected with screening plant, it is characterized in that described screening plant comprises steel frame, be arranged on the guide rail on the basis, cement flooring, the push-and-pull Plan sliding transporting vehicle that rolls and be connected with guide rail, the reciprocating vibration platform and the rectangle that are bolted on the push-and-pull Plan sliding transporting vehicle stack the combined type bushing screen, on the top of described steel frame, are provided with hoisting mechanism
Described meausring apparatus is by the electronic weighing scale be arranged in steel frame, be arranged on the weighing lifting rope suspension plate on electronic weighing scale, weighing lifting rope and the backing board that is arranged on the electronic weighing scale bottom form, and described weighing lifting rope adopts latch to be movably attached to rectangle through the aperture on the backing board of electronic weighing scale bottom and stacks on the combined type bushing screen.
Described hoisting mechanism is by motor, reductor in the middle of the top that is arranged on steel frame, two reels that are connected with motor, speed reducer drive by belt or chain respectively and be wound on respectively two boom hoist cables on reel and form, the other end of described boom hoist cable is connected with the backing board two ends of electronic weighing scale bottom respectively.
It is seven layers of bushing screen that described rectangle stacks formula combination bushing screen, and the mesh size of bushing screen dwindles from top to bottom gradually, and each layer of bushing screen is provided with dowel hole at the upper lower limb of surrounding, and is fixedly connected with by bearing pin.
Described mesh size is respectively 100mm, 80mm, 60mm, 40mm, 20mm and 10mm, and the bottom of described bushing screen is the collecting box that particle diameter is less than the 10mm fine granules.
Be provided with in the junction of described shake table and bottom bushing screen and prevent that rectangle from stacking the locator card of formula combination bushing screen in the shake table surface changing of the relative positions.
Screening and the weighing technique of the screening meausring apparatus that adopts prose style free from parallelism rock grain size of the present invention to distribute, is characterized in that comprising the following steps:
Screening
1) pull Plan sliding transporting vehicle, rectangle is stacked to formula combination bushing screen pulls out in steel frame, the prose style free from parallelism rock rock sample that will obtain from scene is loaded into rectangle and stacks the last layer sieve of formula combination bushing screen, and the Weight control of at every turn sieving prose style free from parallelism rock sample is being less than 100 kilograms.
2) promoting Plan sliding transporting vehicle stacks formula combination bushing screen by rectangle and is advanced in steel frame, start the reciprocating vibration platform, by the reciprocating vibration platform, providing power to make rectangle stack the vibrations of formula combination bushing screen is sieved, until prose style free from parallelism rock sample has been sized, and be that the sillar that particle diameter is greater than 100mm cleans out by the oversize in the ground floor sieve;
Weighing
1) the weighing lifting rope 5 use latches on weighing lifting rope suspension plate 13 are connected on the last layer sieve that rectangle stacks formula combination bushing screen, after connection, starter motor, reductor 10, motor, reductor 10 by driving belt chain or chain 12 with movable reel 8 and be wound on the backing board 14 that boom hoist cable 6 on reel 8 promotes electronic weighing scale, drive rectangle and stack formula combination bushing screen Integral lifting, after now electronic weighing scale 9 weighs up the gross weight of prose style free from parallelism rock sample, by the bushing screen original position that falls back;
2) then successively pull down from top to bottom the bearing pin in the dowel hole of N layer sieve, N layer sieve and following each layer of sieve of bushing screen are separated, start lifting motor, reductor, weigh up the above sieve of this separating layer and the gross weight of prose style free from parallelism rock, repeat said process, until the weight weighing of each layer of sieve prose style free from parallelism rock is complete.Can draw the gross weight P of prose style free from parallelism rock sample and bushing screen after weighing
always; The gross weight of the N time weighing is P
n.If the weight of the following prose style free from parallelism rock of a certain particle diameter is P
the n rock, the gross weight P of bushing screen; The deadweight of each individual layer sieve is P
i, the gross weight P of prose style free from parallelism rock sample
rock;
Its computing formula is:
P
rock=P
always-P
P
the n rock=P
rock-(P
n-∑ P
i) (i=1～N);
3) weighing data calculated according to above-mentioned formula is drawn 0～100mm prose style free from parallelism rock grain size distribution characteristics curve.
Advantage of the present invention is:
This screening meausring apparatus is the formula that the stacks screening meausring apparatus that dimensions is larger, can the prose style free from parallelism rock sample from quick-fried heap or 0～100mm grade of obtaining of row rock field be sieved and weighing, determine the degree of this grade scope prose style free from parallelism rock in quick-fried heap or row rock field, and then draw the particle size distribution characteristic of this grade scope rock, make up the photographic imagery method and understood the defect that the image information technology of taking pictures exists, for optimizing the mine blasting parameter, determine explosive specific charge and the explosive payload of economical rationality and arranged rock field stability of slope Journal of Sex Research important basic data is provided.
The accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
The specific embodiment
Further illustrate embodiments of the present invention below in conjunction with accompanying drawing.
As shown in Figure 1, the screening meausring apparatus that prose style free from parallelism rock grain size of the present invention distributes, comprise the screening plant be connected with batcher, the meausring apparatus be connected with screening plant, it is characterized in that described screening plant comprises steel frame 19, be arranged on the guide rail 2 on basis, cement flooring 1, the push-and-pull Plan sliding transporting vehicle 3 that rolls and be connected with guide rail 2, the reciprocating vibration platform 17 and the rectangle that by bolt 18, are fixed on push-and-pull Plan sliding transporting vehicle 3 stack the combined type bushing screen, top at described steel frame 19 is provided with hoisting mechanism, push-and-pull Plan sliding transporting vehicle 3 can stack rectangle the combined type bushing screen and move forward and backward, so that the rock sample rectangle of packing into is stacked to the rock sample after the combined type bushing screen is sieved or clear up screening.
Described meausring apparatus is by the electronic weighing scale 9 be arranged in steel frame 19, be arranged on the weighing lifting rope suspension plate 13 of electronic weighing scale 9 upper surfaces, weighing lifting rope 5 forms with the backing board 14 that is arranged on electronic weighing scale 9 bottoms, and described weighing lifting rope 5 adopts latch to be movably attached to rectangle through the aperture on the backing board 14 of electronic weighing scale 9 bottoms and stacks on the combined type bushing screen.
Described hoisting mechanism is by motor, reductor 10 in the middle of the top that is arranged on steel frame 19, two reels 8 that are in transmission connection by belt or chain 12 and motor, reductor 10 respectively and be wound on respectively two boom hoist cables 6 on reel 8 and form, the other end of described boom hoist cable 6 is connected with backing board 14 two ends of electronic weighing scale bottom respectively.By lifting motor reductor 10 band movable reels 8, promote the backing board 14 of electronic weighing scale by boom hoist cable 6.
It is seven layers of bushing screen that described rectangle stacks the combined type bushing screen, and the mesh size of bushing screen dwindles from top to bottom gradually, and each layer of bushing screen is provided with dowel hole 15 at the upper lower limb of surrounding, and is fixedly connected with by bearing pin.So that dismounting and installation.
Be that described mesh size is respectively 100mm, 80mm, 60mm, 40mm, 20mm and 10mm, the bottom that described rectangle stacks the combined type bushing screen is the collecting box that particle diameter is less than the 10mm fine granules.
Be provided with in the junction of described shake table and bottom bushing screen and prevent that rectangle from stacking the locator card 16 of combined type bushing screen in the shake table surface changing of the relative positions.
The screening weighing technique of the screening meausring apparatus that adopts prose style free from parallelism rock grain size of the present invention to distribute, is characterized in that comprising the following steps:
Screening
1) pull Plan sliding transporting vehicle 3, rectangle is stacked to formula combination bushing screen pulls out in steel frame 19, the prose style free from parallelism rock rock sample that will obtain from scene is loaded into rectangle and stacks the last layer sieve of formula combination bushing screen, and the Weight control of at every turn sieving prose style free from parallelism rock sample is being less than 100 kilograms.
2) promoting Plan sliding transporting vehicle 3 stacks formula combination bushing screen by rectangle and is advanced in steel frame 19, start reciprocating vibration platform 17, by reciprocating vibration platform 17, providing power to make rectangle stack the vibrations of formula combination bushing screen is sieved, until prose style free from parallelism rock sample has been sized, and be that the sillar that particle diameter is greater than 100mm cleans out by the oversize in the ground floor sieve;
Weighing
1) the weighing lifting rope 5 use latches on weighing lifting rope suspension plate 13 are connected on the last layer sieve that rectangle stacks formula combination bushing screen, after connection, starter motor, reductor 10, motor, reductor 10 by driving belt chain or chain 12 with movable reel 8 and be wound on the backing board 14 that boom hoist cable 6 on reel 8 promotes electronic weighing scale, drive rectangle and stack formula combination bushing screen Integral lifting, after now electronic weighing scale 9 weighs up the gross weight of prose style free from parallelism rock sample and bushing screen, by the bushing screen original position that falls back;
2) then successively pull down from top to bottom the bearing pin in the dowel hole 15 of N layer sieve, make bushing screen N layer sieve and below each layer of sieve separate, start lifting motor, reductor 10, weigh up the above sieve of this separating layer and the gross weight of prose style free from parallelism rock, repeat said process, until the weight weighing of each layer of sieve prose style free from parallelism rock is complete.Can draw the gross weight P of prose style free from parallelism rock sample and bushing screen after weighing
always, the gross weight of the N time weighing is P
n.If the gross weight P of prose style free from parallelism rock sample
rock; The weight of the following prose style free from parallelism rock of a certain particle diameter is P
the n rock; The gross weight P(datum of bushing screen); The deadweight of each individual layer sieve is P
i(datum),
Its computing formula is:
P
rock=P
always-P
P
the n rock=P
rock-(P
n-∑ P
i) (i=1～N);
3) weighing data calculated according to above-mentioned formula is drawn 0～100mm prose style free from parallelism rock grain size distribution characteristics curve.For the research of association area provides basic data.
The screening weighing technique of the screening meausring apparatus that adopts prose style free from parallelism rock grain size of the present invention to distribute, can the rock sample of the prose style free from parallelism rock from quick-fried heap or 0～100mm grade of obtaining of row rock field be sieved and weighing, determine the degree of this grade scope prose style free from parallelism rock in quick-fried heap or row rock field, and then can draw the particle size distribution characteristic of this grade scope prose style free from parallelism rock, made up the defect of understanding the image information technology of taking pictures with analysis software.
Claims (5)
1. the screening meausring apparatus that a prose style free from parallelism rock grain size distributes, comprise the screening plant be connected with batcher, the meausring apparatus be connected with screening plant, it is characterized in that described screening plant comprises steel frame, be arranged on the guide rail on the basis, cement flooring, the push-and-pull Plan sliding transporting vehicle that rolls and be connected with guide rail, the reciprocating vibration platform and the rectangle that are bolted on the push-and-pull Plan sliding transporting vehicle stack the combined type bushing screen, on the top of described steel frame, are provided with hoisting mechanism
Described meausring apparatus is by the electronic weighing scale be arranged in steel frame, be arranged on the weighing lifting rope suspension plate on electronic weighing scale, the weighing lifting rope forms with the backing board that is arranged on the electronic weighing scale bottom, described weighing lifting rope adopts latch to be movably attached to rectangle through the aperture on the backing board of electronic weighing scale bottom and stacks on the combined type bushing screen
Described hoisting mechanism is by motor, reductor in the middle of the top that is arranged on steel frame, two reels that are connected with motor, speed reducer drive by belt or chain respectively and be wound on respectively two boom hoist cables on reel and form, the other end of described boom hoist cable is connected with the backing board two ends of electronic weighing scale bottom respectively.
2. the screening meausring apparatus that prose style free from parallelism rock grain size according to claim 1 distributes, it is characterized in that it is seven layers of bushing screen that described rectangle stacks the combined type bushing screen, and the mesh size of bushing screen dwindles from top to bottom gradually, each layer of bushing screen is provided with dowel hole at the upper lower limb of surrounding, and is fixedly connected with by bearing pin.
3. the screening meausring apparatus that prose style free from parallelism rock grain size according to claim 1 distributes, it is characterized in that described mesh size is respectively 100mm, 80mm, 60mm, 40mm, 20mm and 10mm, the bottom that described rectangle stacks the combined type bushing screen is the collecting box that particle diameter is less than the 10mm fine granules.
4. the screening meausring apparatus that prose style free from parallelism rock grain size according to claim 1 distributes, is characterized in that being provided with in the junction of described shake table and bottom bushing screen and prevent that rectangle from stacking the locator card of combined type bushing screen in the surperficial changing of the relative positions of shake table.
5. screening, the weighing technique of a screening meausring apparatus that adopts prose style free from parallelism rock grain size claimed in claim 1 to distribute, is characterized in that comprising the following steps:
Screening
1) pull Plan sliding transporting vehicle, rectangle is stacked to formula combination bushing screen pulls out in steel frame, the prose style free from parallelism rock rock sample that will obtain from scene is loaded into rectangle and stacks the last layer sieve of formula combination bushing screen, and the Weight control of at every turn sieving prose style free from parallelism rock sample is being less than 100 kilograms.
2) promoting Plan sliding transporting vehicle stacks formula combination bushing screen by rectangle and is advanced in steel frame, start the reciprocating vibration platform, by the reciprocating vibration platform, providing power to make rectangle stack the vibrations of formula combination bushing screen is sieved, until prose style free from parallelism rock sample has been sized, and be that the sillar that particle diameter is greater than 100mm cleans out by the oversize in the ground floor sieve;
Weighing
1) the weighing lifting rope on weighing lifting rope suspension plate is connected on the last layer sieve that rectangle stacks formula combination bushing screen with latch, after connection, starter motor, reductor, motor, reductor are by driving belt chain or chain-driving reel and be wound on the backing board that boom hoist cable on reel promotes electronic weighing scale, drive rectangle and stack formula combination bushing screen Integral lifting, after now electronic weighing scale weighs up the gross weight of prose style free from parallelism rock sample, by the bushing screen original position that falls back;
2) then successively pull down from top to bottom the bearing pin in the dowel hole of N layer sieve, make bushing screen N layer sieve and below each layer of sieve separate, start lifting motor, reductor 10, weigh up the above sieve of this separating layer and the gross weight of prose style free from parallelism rock, repeat said process, until the weight weighing of each layer of sieve prose style free from parallelism rock is complete.Can draw the gross weight P of prose style free from parallelism rock sample and bushing screen after weighing
always, the gross weight of the N time weighing is P
n, establish the gross weight P of prose style free from parallelism rock sample
rock, the weight of the following prose style free from parallelism rock of a certain particle diameter is P
the n rock; The gross weight P of bushing screen; The deadweight of each individual layer sieve is P
i,
Its computing formula is:
P
rock=P
always-P
P
the n rock=P
rock-(P
n-∑ P
i) (i=1～N);
3) weighing data calculated according to above-mentioned formula is drawn 0～100mm prose style free from parallelism rock grain size distribution characteristics curve.
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| CN201310473711.6A CN103480579B (en) | 2013-10-10 | 2013-10-10 | Screening and weighing device and screening and weighing method for granular rock particle size distribution |
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| CN103480579B CN103480579B (en) | 2015-07-01 |
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Cited By (8)
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|---|---|---|---|---|
| CN103994896A (en) * | 2014-05-04 | 2014-08-20 | 长安大学 | Calculation method for asphalt stirring vibrating screening efficiency |
| CN104741310A (en) * | 2015-03-04 | 2015-07-01 | 鞍钢集团矿业公司 | Movable type combined screening cart for detecting particle size of ore |
| CN105738258A (en) * | 2016-03-07 | 2016-07-06 | 华北水利水电大学 | Detection method for anti-filtration capability of vegetation concrete |
| CN106824766A (en) * | 2017-03-14 | 2017-06-13 | 李润凤 | A kind of household water filter production talcum powder conveniently weighs and sieves integrated apparatus |
| CN107036929A (en) * | 2017-06-14 | 2017-08-11 | 中国矿业大学 | Particle is lost in during a kind of real-time measurement gushing water pilot system and method |
| CN109530219A (en) * | 2018-10-25 | 2019-03-29 | 河海大学 | A kind of screening plant and its application method quantitatively obtaining cohesiveless soil particle |
| CN111790594A (en) * | 2020-06-10 | 2020-10-20 | 新兴铸管股份有限公司 | Automatic grain-size screening device and method |
| KR102346296B1 (en) * | 2021-05-28 | 2022-01-03 | 한국기술교육대학교 산학협력단 | A portable apparatus for analyzing aggregate size |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105738258A (en) * | 2016-03-07 | 2016-07-06 | 华北水利水电大学 | Detection method for anti-filtration capability of vegetation concrete |
| CN106824766A (en) * | 2017-03-14 | 2017-06-13 | 李润凤 | A kind of household water filter production talcum powder conveniently weighs and sieves integrated apparatus |
| CN107036929A (en) * | 2017-06-14 | 2017-08-11 | 中国矿业大学 | Particle is lost in during a kind of real-time measurement gushing water pilot system and method |
| CN109530219A (en) * | 2018-10-25 | 2019-03-29 | 河海大学 | A kind of screening plant and its application method quantitatively obtaining cohesiveless soil particle |
| CN111790594A (en) * | 2020-06-10 | 2020-10-20 | 新兴铸管股份有限公司 | Automatic grain-size screening device and method |
| KR102346296B1 (en) * | 2021-05-28 | 2022-01-03 | 한국기술교육대학교 산학협력단 | A portable apparatus for analyzing aggregate size |
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