US3822600A - Device for the removal of individual samples from static bulk material - Google Patents

Device for the removal of individual samples from static bulk material Download PDF

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Publication number
US3822600A
US3822600A US00323323A US32332373A US3822600A US 3822600 A US3822600 A US 3822600A US 00323323 A US00323323 A US 00323323A US 32332373 A US32332373 A US 32332373A US 3822600 A US3822600 A US 3822600A
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US
United States
Prior art keywords
casing
sampling device
guide
sample
scraper
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00323323A
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English (en)
Inventor
A Stonner
R Kohling
M Debus
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Individual
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Individual
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
    • G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0091—Powders
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/10—Devices for withdrawing samples in the liquid or fluent state
    • G01N2001/1006—Dispersed solids

Definitions

  • a sampling device which includes a casing having a drilling worm or auger mounted therein and wherein there is carried by the casing for movement axially thereof a scraper, the scraper being disposed between adjacent convolutions of the drilling worm and being operable both to form a top closure for the space within the casing during the taking of a sample and to effect a thorough cleaning of the drilling Worm during the discharge of a sample whereby the sample discharged from the sampling device will be a complete sample and definitive of the area of the bulk material from which the sample is taken.
  • the automatic cleaning of the sampling device both assures a complete sample and eliminates the unnecessary later cleaning of the sampling device.
  • This invention relates to an apparatus for effecting the removal of individual samples from static bulk material and more particularly to a sample removing device in the form of an encased drilling worm which can be introduced into the bulk material.
  • the value and workability of fine grained bulk material such as coal, ore, building material, etc. often depends essentially on the quality characteristics, such as water, ash content, or granulation structure.
  • quality characteristics such as water, ash content, or granulation structure.
  • it is necessary to take individual samples through various portions of the bulk material which samples give one a view of the quality characteristics of the bulk material. In many instances this is accomplished by means of sampling sticks which are operated manually. Because of the considerable expenditure of time, the taking of the samples is often not accomplished with the necessary care, and thus, the sampling doesnot always fulfill the requirements desired by such sampling.
  • Sampling sticks moreover, are suited preferably for fine grained bulk materials.
  • the present invention relates to an encased drilling worm which is provided with means for automatically cleaning the same and which device picks up only the material in the sampling area and discharges the material in a satisfactory manner.
  • the sampling device of this invention includes a scraper which is mounted within the casing and which is positioned between two adjacent convolutions of the drilling worm or auger with the scraper being mounted for movement axially of the casing only in a guided manner so that it is free to be driven .by the drilling worm both during the taking of a sampleand during the discharging of a sample from the casing.
  • circumferential movement of the scraper is prevented by means of a slot type guide which permits the scraper to move to the extreme lower end of the casing and provides an upper closure of the space between the drilling worm and the casing and which scraper moves upwardly as the drilling progresses to continue to be an upper closure of the drilling space.
  • the scraper moves downwardly in the casing and effects a complete discharge of the received material and thus simultaneously cleans the inside of the drilling casing thus eliminating additional cleaning apparatus.
  • the scraper is in the form of an elastic block which occupies about one quarter of the cross section of the casing. This arrangement results in a relationship between the scraper and the drilling worm and casing wherein the scraper maintains its relative position and does not tilt or cant so as to be wedged.
  • a further feature of the invention is the mounting of the scraper which includes guide pins extending through the casing and attached to a pipe-like cage surrounding the casing which cage is guided co-axially with the casing by at least three pairs of supporting rollers distributed over the'circumference of the casing.
  • FIG. 1 is an elevational view of the sampling device of this invention with a portion thereof broken away and shown in section so as to illustrate the internal constructional details thereof.
  • FIG. 2 is a transverse sectional view taken generally along the line II-II of FIG. 1 and shows further th specific mounting of the scraper.
  • FIG. 3 is an elevational view of the invention in operation.
  • the sampling device is formed essentially in two parts, the lower part being in the form of a sample taking mechanism 1, the upper part being in the form of a drive mechanism 2.
  • the sample taking mechanism 1 has a length which may be on the order of 1 to 3 meters and the entire sampling device may be readily suspended from any suitable guide device including a gantry, crane, etc., as shown in FIG. 3. Accordingly, the manner of supporting the sampling device has not been specifically illustrated and will not be specifically described herein.
  • Suitable means are provided for fixedly mounting the electric motor 3 and the drive mechanism 4 relative to the plate 6.
  • a drilling worm or auger 7 extends downwardly from the plate 6 and is suitably joumallled in a conventional manner relative to the plate 6 for rotation about a predetermined axis.
  • An upper portion of the drilling worm 7 projects through the plate 6 and is connected by means of the coupling 5 to the drive mechanism 4.
  • the drilling worm 7 is surrounded by a tubular casing 8 which is rigidly secured to the housing plate 6.
  • the casing 8 terminates short of the free end of the drilling worm 7 and is provided at the lower end thereof with a conical closing ring 9.
  • the drilling worm 7 is carried by a solid center shaft 11 and disposed between the center shaft 11 and the casing 8 is a scraper 12 which extends fully between two adjacent convolutions of the drilling worm 7.
  • the scraper 12 is preferably in the form of a block of elastic material and occupies a generally quandrant of the cross section of the casing 8. Additionally, the scraper 12 is provided at the top and bottom thereof with elastic scraper lips or edges 13.
  • each of the guide pins 14 are provided in two sets, one set for each of the guide slots 10 and if desired, each of the guide pins 14 may be provided with a suitable roller engageable with the walls of the guide slots 10.
  • the guide slots 10 are disposed parallel to the axis of the shaft 11 and thus, the movement of the scraper 12 is limited to an axial movement. 8
  • a pipe-like cage surrounds the casing 8 and the scraper 12 is secured thereto for movement therewith by the guide pins 14.
  • the cage 15 is radially spaced from the casing 8 a short distance and carries a plurality of supporting rollers 16 which are arranged in pairs with there being at least three pairs of the supporting rollers 16 spaced circumferentially about the casing 8 and thus maintaining a coaxial relationship between the cage 15 and the casing 8.
  • the scraper 12 is disposed at the lower end of the casing 8.
  • the sampling mechanism 1 isthen projected into the bulk material which is to be sampled, either vertically or at a selected angle, and the drilling worm 7 is rotated.
  • certain of the bulk material is forced up into the casing 8 against the underside of the scraper l2 and at the same time the scraper l2 slides mechanically upward within the casing 8.
  • the scraper 12 reaches its uppermost position without there being any Contact pressure between the sample being taken and the scraper in that the scraper 12 is fed upwardly within the casing 8 at the same rate as the sample.
  • suitable means such as a control switch (not shown) for the electric motor 3 may be provided for limiting the rotation of the drilling worm 7 and thus, the length of the sample which was taken.
  • the drilling worm 7 must be rotated in reverse direction in order to discharge the sample. Accordingly, either the electric motor 3 must be of the reversal type, or the drive mechanism 4 must be of the reversal type.
  • the reversal driving of the drilling worm 7 may be accomplished in any desired conventional manner.
  • the electric motor 3 shuts off and the bulk material fed into the casing 8 by the drilling worm lies surrounded by the casing 8 on and between the convolutions of the drilling worm and is retained within the casing 8 thereby.
  • the sampling device is then removed from the bulk material being sampled and transferred to a place where the sample is to be discharged.
  • the manner in which the sampling device is shifted is not a part of this invention, and can be accomplished in any desired manner.
  • the lower end of the casing 8 is associated with any desired type of receptacle for the sample, such as a conveyor belt, a scraper belt, a shaker-loader or a collecting tank.
  • scraper 12 moves downwardly in the casing 8 and slides against the convolutions of the drilling worm 7 so as to scrape all of the sample material from the drilling worm 7 in a satisfactory manner.
  • the guide slots 10 can perform a further useful function. If the sampled material has a tendency to jam within the casing 8, the guide slots 10 function as pressure relief valves and prevent the breaking down of the sampled material. Thus there is no grain destruction in the case of granular bulk materials and a true sample is obtainable.
  • the casing 8 is reinforced in the area of the scraper 12 by the cage 15 through the reaction of the rollers 16 against the casing 8. Further, if any bulging of the casing 8 does occur below the lowermost rollers 16 during the sample taking operation, when the scraper 12 moves downwardly during the sample discharging operation, the lower rollers 16 will again reform the casing 8 and thus recalibrate the casing 8.
  • sampling device of this invention is thus to be considered as a suitable mechanical testing device according to the prevailing guide lines for taking samples, such as ISO regulations, etc.
  • sampling device for the removal of individual samples from static bulk material, said sampling device comprising a tubular casing, a drilling worm having a plurality of convolutions disposed within said casing,
  • said scraper means is in the form of a block-like member disposed within said casing and extending between two adjacent convolutions of said drilling worm in contacting relation therewith, said block-like member forming a movable upper closure for a sample receiving space defined by said casing and said drilling worm.

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Sampling And Sample Adjustment (AREA)
US00323323A 1972-01-15 1973-01-12 Device for the removal of individual samples from static bulk material Expired - Lifetime US3822600A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722201896 DE2201896B1 (de) 1972-01-15 1972-01-15 Vorrichtung zur entnahme von einzelproben aus ruhendem schuettgut

Publications (1)

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US3822600A true US3822600A (en) 1974-07-09

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US00323323A Expired - Lifetime US3822600A (en) 1972-01-15 1973-01-12 Device for the removal of individual samples from static bulk material

Country Status (7)

Country Link
US (1) US3822600A (enrdf_load_stackoverflow)
AU (1) AU471734B2 (enrdf_load_stackoverflow)
BR (1) BR7300320D0 (enrdf_load_stackoverflow)
CA (1) CA1004877A (enrdf_load_stackoverflow)
DE (1) DE2201896B1 (enrdf_load_stackoverflow)
GB (1) GB1397468A (enrdf_load_stackoverflow)
ZA (1) ZA73231B (enrdf_load_stackoverflow)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0330829A1 (de) * 1988-02-03 1989-09-06 Anton Reck Verfahren und Vorrichtung zur Entnahme von Bodenproben
FR2674817A1 (fr) * 1991-04-08 1992-10-09 Sarp Ind Prelevement automatique d'echantillons dans un produit en vrac.
US5154087A (en) * 1990-01-29 1992-10-13 Intersystems, Inc. Sampler apparatus
US6138522A (en) * 1996-03-29 2000-10-31 Nec Corporation Sample collecting apparatus of space machine
US20090272203A1 (en) * 2008-05-02 2009-11-05 Johnson Jr George F Material Sampling Device with Rotatable Tube Assembly
CN101788408A (zh) * 2010-03-24 2010-07-28 阎国俊 全深度块状物料采样装置
CN103543035A (zh) * 2013-10-16 2014-01-29 中国矿业大学 车厢内粉状物料采样头
CN104764625A (zh) * 2015-04-14 2015-07-08 河南理工大学 一种煤层低温取样装置及方法
DE102014102142A1 (de) * 2014-02-19 2015-08-20 Pfleiderer Holzwerkstoffe Gmbh Vorrichtung zur Entnahme einer Materialprobe
CN105486535A (zh) * 2015-12-18 2016-04-13 重庆路格科技有限公司 料斗自动取样装置
US9334693B2 (en) * 2015-09-08 2016-05-10 Otis Walton Vertical-screw-auger conveyer feeder
DE102009008146B4 (de) * 2009-02-09 2016-06-16 Rwe Power Ag Einrichtung zur Probenahme in einem Haufwerk
AU2016200604B2 (en) * 2011-07-05 2016-12-01 Nestec S.A. Material sampling device
CN113016273A (zh) * 2021-02-26 2021-06-25 江居燕 园林用土壤钻孔装置

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3839003C2 (de) * 1988-11-18 1996-07-11 Paul Dr Behringer Vorrichtung zur Entnahme von Bodenproben mit einer Bohrschnecke
GB9214657D0 (en) * 1992-07-10 1992-08-19 Sampling Engineering Systems L Automatic sampling system for road or track vehicles
CN106153385B (zh) * 2016-06-22 2019-03-01 国网山东省电力公司电力科学研究院 入炉煤采样系统及使用方法
CN109443839B (zh) * 2018-12-25 2023-10-31 佛山科学技术学院 一种便携式电动采土器
CN113686610B (zh) * 2021-09-13 2022-05-27 淮北矿业股份有限公司淮北选煤厂 一种随动式煤炭样品采集机构

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1607713A (en) * 1925-12-28 1926-11-23 Wickey Andrew Means for scraping spiral elements
GB897199A (en) * 1959-08-05 1962-05-23 Cocksedge & Co Improvements in or relating to apparatus for sampling
GB956716A (en) * 1960-08-29 1964-04-29 Birmingham Small Arms Co Ltd Sampling of pulverulent materials

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1607713A (en) * 1925-12-28 1926-11-23 Wickey Andrew Means for scraping spiral elements
GB897199A (en) * 1959-08-05 1962-05-23 Cocksedge & Co Improvements in or relating to apparatus for sampling
GB956716A (en) * 1960-08-29 1964-04-29 Birmingham Small Arms Co Ltd Sampling of pulverulent materials

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0330829A1 (de) * 1988-02-03 1989-09-06 Anton Reck Verfahren und Vorrichtung zur Entnahme von Bodenproben
US5154087A (en) * 1990-01-29 1992-10-13 Intersystems, Inc. Sampler apparatus
FR2674817A1 (fr) * 1991-04-08 1992-10-09 Sarp Ind Prelevement automatique d'echantillons dans un produit en vrac.
EP0508887A1 (fr) * 1991-04-08 1992-10-14 Sarp Industries Prélèvement automatique d'échantillons dans un produit en vrac
US6138522A (en) * 1996-03-29 2000-10-31 Nec Corporation Sample collecting apparatus of space machine
US8171808B2 (en) 2008-05-02 2012-05-08 Johnson Industries, Inc. Material sampling device with rotatable tube assembly
US20090272203A1 (en) * 2008-05-02 2009-11-05 Johnson Jr George F Material Sampling Device with Rotatable Tube Assembly
DE102009008146B4 (de) * 2009-02-09 2016-06-16 Rwe Power Ag Einrichtung zur Probenahme in einem Haufwerk
CN101788408B (zh) * 2010-03-24 2011-10-05 阎国俊 全深度块状物料采样装置
CN101788408A (zh) * 2010-03-24 2010-07-28 阎国俊 全深度块状物料采样装置
AU2016200604B2 (en) * 2011-07-05 2016-12-01 Nestec S.A. Material sampling device
CN103543035A (zh) * 2013-10-16 2014-01-29 中国矿业大学 车厢内粉状物料采样头
CN103543035B (zh) * 2013-10-16 2015-08-05 中国矿业大学 车厢内粉状物料采样头
DE102014102142A1 (de) * 2014-02-19 2015-08-20 Pfleiderer Holzwerkstoffe Gmbh Vorrichtung zur Entnahme einer Materialprobe
DE102014102142B4 (de) * 2014-02-19 2017-06-01 Pfleiderer Holzwerkstoffe Gmbh Vorrichtung zur Entnahme einer Materialprobe und deren Verwendung
CN104764625A (zh) * 2015-04-14 2015-07-08 河南理工大学 一种煤层低温取样装置及方法
US9334693B2 (en) * 2015-09-08 2016-05-10 Otis Walton Vertical-screw-auger conveyer feeder
CN105486535A (zh) * 2015-12-18 2016-04-13 重庆路格科技有限公司 料斗自动取样装置
CN113016273A (zh) * 2021-02-26 2021-06-25 江居燕 园林用土壤钻孔装置

Also Published As

Publication number Publication date
AU471734B2 (en) 1976-04-29
DE2201896B1 (de) 1973-08-09
GB1397468A (en) 1975-06-11
ZA73231B (en) 1973-10-31
AU5099973A (en) 1974-07-11
DE2201896C2 (enrdf_load_stackoverflow) 1974-03-14
BR7300320D0 (pt) 1973-10-25
CA1004877A (en) 1977-02-08

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