FR2395072A1 - Wet sand grader unit - has surplus water outlet on rotary drum end with graded sand discharge on other - Google Patents

Wet sand grader unit - has surplus water outlet on rotary drum end with graded sand discharge on other

Info

Publication number
FR2395072A1
FR2395072A1 FR7719010A FR7719010A FR2395072A1 FR 2395072 A1 FR2395072 A1 FR 2395072A1 FR 7719010 A FR7719010 A FR 7719010A FR 7719010 A FR7719010 A FR 7719010A FR 2395072 A1 FR2395072 A1 FR 2395072A1
Authority
FR
France
Prior art keywords
sand
water
drum
tube
graded
Prior art date
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.)
Granted
Application number
FR7719010A
Other languages
French (fr)
Other versions
FR2395072B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Akae Kikai Kogyo Co Ltd
Original Assignee
Akae Kikai Kogyo Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Akae Kikai Kogyo Co Ltd filed Critical Akae Kikai Kogyo Co Ltd
Priority to FR7719010A priority Critical patent/FR2395072A1/en
Publication of FR2395072A1 publication Critical patent/FR2395072A1/en
Application granted granted Critical
Publication of FR2395072B1 publication Critical patent/FR2395072B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
    • B28C7/0007—Pretreatment of the ingredients, e.g. by heating, sorting, grading, drying, disintegrating; Preventing generation of dust
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
    • B03B5/48—Washing granular, powdered or lumpy materials; Wet separating by mechanical classifiers
    • B03B5/56—Drum classifiers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)

Abstract

In the grading unit fine fraction of sand is freed from impinging impurities and graded sand can be discharged at several points of the unit. The water sand mixt. is fed into the rotating drum (1) through inlet tube (2) which has an increasing dia. in direction of the water flow. By this arrangement the flow velocity of the water is gradually decreased, so that by the time the water reaches the end of the tube its velocity is very low and it trickles evenly distributed into the water level already present inside the drum through the perforated part (5) of the tube. As the water and sand slides gently into the water content of the drum, the spiral channels formed by the numerous guide blades (7) enable the sand to settle in these channels. By the rotation of the drum the sand is steadily shifted towards the other end of the drum, where it comes within operating range of the two sets of rotating wings (8, 8) which scoop up sand particles on their surfaces while the water drops back into the drum. As the wings rotate sand deposited on any wing reaching its top dead centre drops its deposit onto the conical discharge surface (10, 10) from where it is disposed of via chute (17).
FR7719010A 1977-06-21 1977-06-21 Wet sand grader unit - has surplus water outlet on rotary drum end with graded sand discharge on other Granted FR2395072A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7719010A FR2395072A1 (en) 1977-06-21 1977-06-21 Wet sand grader unit - has surplus water outlet on rotary drum end with graded sand discharge on other

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7719010A FR2395072A1 (en) 1977-06-21 1977-06-21 Wet sand grader unit - has surplus water outlet on rotary drum end with graded sand discharge on other

Publications (2)

Publication Number Publication Date
FR2395072A1 true FR2395072A1 (en) 1979-01-19
FR2395072B1 FR2395072B1 (en) 1980-04-11

Family

ID=9192362

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7719010A Granted FR2395072A1 (en) 1977-06-21 1977-06-21 Wet sand grader unit - has surplus water outlet on rotary drum end with graded sand discharge on other

Country Status (1)

Country Link
FR (1) FR2395072A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2457165A1 (en) * 1979-03-13 1980-12-19 Ito Yasuro
EP0079867A1 (en) * 1981-11-12 1983-05-25 Palmiero Capannoli Washing apparatus for inert materials such as sand, gravel and the like
EP0141907A1 (en) * 1983-07-22 1985-05-22 Friedrich Weissheimer Malzfabrik Apparatus for washing and at least partly soaking brewery grain

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE139612C (en) *
FR741199A (en) * 1933-02-08
FR2330466A1 (en) * 1974-11-02 1977-06-03 Moori Takuo DRUM SAND CLASSIFIER

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE139612C (en) *
FR741199A (en) * 1933-02-08
FR2330466A1 (en) * 1974-11-02 1977-06-03 Moori Takuo DRUM SAND CLASSIFIER

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2457165A1 (en) * 1979-03-13 1980-12-19 Ito Yasuro
EP0079867A1 (en) * 1981-11-12 1983-05-25 Palmiero Capannoli Washing apparatus for inert materials such as sand, gravel and the like
EP0141907A1 (en) * 1983-07-22 1985-05-22 Friedrich Weissheimer Malzfabrik Apparatus for washing and at least partly soaking brewery grain

Also Published As

Publication number Publication date
FR2395072B1 (en) 1980-04-11

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Legal Events

Date Code Title Description
ST Notification of lapse