US1943098A - Centrifugal separator - Google Patents

Centrifugal separator Download PDF

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Publication number
US1943098A
US1943098A US605152A US60515232A US1943098A US 1943098 A US1943098 A US 1943098A US 605152 A US605152 A US 605152A US 60515232 A US60515232 A US 60515232A US 1943098 A US1943098 A US 1943098A
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Prior art keywords
valve
float
electromagnet
arm
machine
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Expired - Lifetime
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US605152A
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English (en)
Inventor
Meer Gustav Ter
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Albert T Otto & Sons
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Albert T Otto & Sons
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B11/00—Feeding, charging, or discharging bowls
    • B04B11/04—Periodical feeding or discharging; Control arrangements therefor

Definitions

  • the invention relates to a centrifugal machine in which the feeding of material to the machine is automatically controlled in accordance with predetermined conditions associated with the operation of the machine.
  • One object of the present invention is to provide a new and improvided mechanism whereby the automatic closing of the inlet valve to the separator does not take place until a definite predetermined amount of material has been collected within said separator.
  • a float which operates in accordance with the amount of material in the machine, to control the operation of the inlet valve device.
  • an electromagnet is provided for controlling the operation of the inlet valve, this magnet being operated in accordance with certain predetermined conditions in the operation of the separator, as for instance when a definite amount of material has collected in the centrifugal drum, or when the scraper has terminated its function of removing the separated material from the interior of the separator.
  • FIG. 1 is a front elevation, partly in section, and partly diagrammatically, of a portion of a centrifugal machine and. its associated control devices.
  • Figs. 2 is a perspective view showing a portion of the control device shown in Fig. 1.
  • Fig. 3 is a perspective view showing another portion of the control device shown in Fig. 1, and
  • Figs. 4 and 5 are different views of the counterweight lever and contact arm.
  • the present invention is illustrated in connection with a centrifugal separator including a drum or bowl 10 rotated by any suitable power means and enclosed in a casing 11.
  • the drum 10 may have the periphery thereof perforated'to permit the separated liquid to escape therethrough under centrifugal action, or the liquid may be made to escape by any other suitable means.
  • the inflow of material into the separator is controlled by an inlet valve 12 which, in the specific form shown, has an inlet port 13 and an outlet port 14, separated by a valve seat .15 cooperating with a valve member 16.
  • This valve member 16 is fluid actuated, and for that purpose is connected to a piston 17 adapted to reciprocate in a cylinder 20.
  • This cylinder 20 communicates at the ends thereof with pipes 21 and 22. Fluid under pressure is delivered from a suitable source of fluid pressure through said pipes alternately to control the movement of the piston 17, so as to correspondingly close or open the valve.
  • the pipes 21 and 22 are controlled by an electromagnet 24 shown in the form of a solenoid, and having an armature plunger 25, the movement of this plunger controlling the operation of the valve 12.
  • Means are provided for operating this valve 12 in accordance with the movement of the plunger 25, said means, in the specific form shown, including a control valve 26 operable to control the passage of fluid under pressure from the source of fluid pressure to either of the pipes 21 and 22.
  • the control valve 26 comprises a valve chamber 27 in which reciprocates a valve stem 28, one end of which has a pivotal connection with one end of the lever 29, the other end of which is pivotally connected to the plunger 25. This lever 29 is fulcrumed intermediate its ends to a bracket 30 connected to the valve 26.
  • valve 26 is provided with an inlet port 32 intermediate of the ends, and leading from a suitable source of fluid pressure, for instance a pump, an outlet 33 communicating with opposite ends of the chamber 27.
  • a suitable source of fluid pressure for instance a pump
  • outlet 33 communicating with opposite ends of the chamber 27.
  • a pair of plungers or slide valves and 36 so spaced and positioned that the lower valve 35 may move above the port of the pipe 21 to connect said pipe with the outlet 33, or may move below said port to cut off communication between said port and the outlet and establish communication between said port and the inlet 32.
  • the upper valve 36 likewise connects .the pipe 22 with either the inlet or outlet, and
  • the two valves operate substantially simultaneously to perform alternate functions.
  • the electromagnet 24 is energized so that the plunger 25 is in its uppermost position.
  • the plungers 35 and 36 are in the position with the valve stem 28 in its lower position so that the fluid under pressure enters the valve chamber 27 between the plungers 35 and 36 and passes through the pipe 21 into the cylinder 20 to maintain the valve 12 in open position as shown.
  • the electromagnet 24 is deenergized, the armature plunger 25 will fall into its lowermost position, thereby causing the plungers 35 and 36 to move into the dotted position shown. In this position, the pipe 22 will receive the fluid under pressure to move said piston upwardly and close the valve 12.
  • valve 12 is connected to the interior of the bowl by a suitable pipe, not shown.
  • the electromagnet 24 is operated in accordance with predetermined operating conditions in the centrifugal drum 10.
  • the electromagnet is operated when a predetermined amount of material is collected on the inner periphery of the drum 10, and is also made to operate following a'sequence of operation of a scraper mechanism.
  • the operation of this electromagnet 24 is preferably controlled in accordance with the amount of material collected'on the periphery of the centrifugal drum 10.
  • the interior of the drum 10 is provided with a float 40 connected to the shaft 41 which extends to the outside of the casing 11. Fixed to this shaft 41 on the outside of the casing 11 is a counterweight 42.
  • the float 40 is supported by the material being separated so that the angular position of this float is determined in accordance with the amount of material collected on the internal surface of the centrifugal drum 10.
  • the movement of this float 40 is transmitted to a switch 43 which is in the electric circuit of the electromagnet, and which is made to open or close this circuit in accordance with the anular position of the float 40.
  • This switch 43 includes a contactor arm 44 loosely mounted on the shaft 41 and connected to a current line 45 leading to one terminal of the electromagnet 24, the other terminal being connected to one side of the source of current by a lead line 46.
  • the contactor arm 44 is adapted to engage a contact member 4'7 constituting the other pole of the switch 43, and connected through the lead line 48 to the other side of the current source.
  • the contactor arm 44 has lost motion connections with the shaft 41. As shown, it has a hub 49 presenting spaced shoulders 50 and 51. Means are provided for moving the contactor arm 44 when the counter- Weight 42 has reached its limiting positions.
  • the hub of the counterweight 42 has extending therefrom two pins 52 and 53 adapted to alternately contact with the shoulders 50 and 51 respectively.
  • the electromagnet 24 is automatically reenergized following a subsequent sequence of operation of the centrifugal machine. For instance, after the valve 12 has been shut, as already described, the material from the inside of the drum is scraped off and discharged. Thereafter the valve 12 is automatically opened.
  • the means for scraping the material from the internal surface of the drum 10 forms nopart of the present invention, and in the form shown is operated by fluid pressure from a cylinder 55 in which reciprocates a rod 56 mounted on the outside of the casing 11, and guided vertically by means of a crosshead 57 engaging a pair of guide rods 58.
  • a scraper or peeling knife 59 Connected to the crosshead 57 in the inside of the drum 10 is a scraper or peeling knife 59 mov.- able into and out of scraping relationship with the material to be scraped.
  • the crosshead 57 as shown in Fig. 1, is in its inactive lowermost position with the knife 59 away from the material.
  • the scraper may be operated to move the crosshead 57 so as to cause the corresponding movement of the knife 59 into peeling or scraping relationship with the material.
  • a spindle 60 upon which is loosely mounted an arm 61 and a crank lever.62 comprising arms 63 and 64.
  • the arm 63 is disposed in the path of movement of a lug 65 connected to the crosshead 5'7.
  • the lug 65 in its upward movement will engage the arm 63 and move said arm in a coun- The clockwise terclockwise direction until it clears said arm.
  • the arm 61 has a lug 66 extending therefrom, and adapted to engage a recess 67 in the arm 64.
  • the crosshead 57 in its downward movement, will cause the lug 65 to engage the arm 63 and move the crank lever 62 in a clockwise direction.
  • This movement of the crank lever is transmitted to the arm 61, which causes the counterweight 42 to move in a counterclockwise direction until it passes dead center, and the catch pin 52 engages the shoulder 50 and causes the contactor arm 44 to move into engagement with the contact member 47 to close the circuitcof the electromagnet 24.
  • This movement of the counterweight 42 is transmitted through the shaft 41 to the float 40 so that said float is restored into position to be effected by the level of the material collected in the drum 10.
  • the energization of the electromagnet 24 causes the valve 12 to be opened so that the material is permitted to again be fed into the centrifugal drum 10.
  • a centrifugal machine having an inlet valve, an electromagnet for controlling the operation of said valve, a float pivotally mounted in the interior of said machine, a counterweight movable with said float and adapted to move said float away from the material being treated and into inactive position when said float has reached a predetermined position, and a switch operated by said counterweight, and in the electric circuit of said electromagnet.
  • a centrifugal machine having an inlet valve, a float in said machine, a counterweight movable with said float and adapted to move said float into inoperative position with respect to the material when said float has been moved by said material to a predetermined position, means for closing said valve when said float has been moved to inactive position, a scraper in said machine adapted to be moved into and out of scraping re lationship with the material in said machine, and means for automatically restoring said float to operative position when said scraper has been moved into inoperative position.
  • a centrifugal machine having an inlet valve, a float in said machine, a counterweight movable with said float and adapted to move said float into inoperative position with respect to the material being centrifuged when said float has been moved by said material to a predetermined position,
  • an inlet valve for controlling the inflow of material to be treated
  • an electromagnet for controlling the opening and closing of said valve
  • means for operating said electromagnet to close said valve when a predetermined amount of material has been collected in said machine and including a float movable in accordance with the level of material collected in said machine, and means for moving said float into inoperative position with respect to the material, when said float has been moved by said material to predetermined position, a scraper in said machine adapted to be moved into position to remove the separated material collected in said machine, and means for automatically restoring said float to operative position and for automatically opening said inlet valve when said scraper has been moved into inoperative position.
  • a centrifugal machine having a rotary separating chamber, an inlet valve, an electromagnet for controlling the operation of said valve, 9. member mounted within said chamber, a counterweight operatively connected to said member and adapted to move the member away from the material being treated and into inactive position when said member reaches a predetermined position, and a switch controlled by said counterweight and in the electric circuit of said electromagnet.
  • a centrifugal machine having a rotary chamber adapted to receive the material to be treated

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  • Centrifugal Separators (AREA)
US605152A 1931-05-13 1932-04-14 Centrifugal separator Expired - Lifetime US1943098A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1943098X 1931-05-13

Publications (1)

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US1943098A true US1943098A (en) 1934-01-09

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US605152A Expired - Lifetime US1943098A (en) 1931-05-13 1932-04-14 Centrifugal separator

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US (1) US1943098A (fr)
FR (1) FR736811A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2642997A (en) * 1946-02-14 1953-06-23 George W Tompkin Centrifugal machine
US3670890A (en) * 1970-01-15 1972-06-20 Nasa Liquid waste feed system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3141846A (en) * 1962-04-05 1964-07-21 Western States Machine Co Load control unit for cyclical centrifugal installation
DE1757532C3 (de) * 1968-05-17 1979-08-23 Rudolf F. Ing.(Grad.) 2000 Norderstedt Garbaty Auslaufregler für einen Zentrifugalseparator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2642997A (en) * 1946-02-14 1953-06-23 George W Tompkin Centrifugal machine
US3670890A (en) * 1970-01-15 1972-06-20 Nasa Liquid waste feed system

Also Published As

Publication number Publication date
FR736811A (fr) 1932-11-29

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