公开(公告)号：US3579417A

公开(公告)日：1971-05-18

申请号：US3579417D

申请日：1969-05-12

Applicant: IMPROVED MACHINERY INC

Inventor： CARLSMITH LAWRENCE ALLAN

IPC: D21C7/12 ,  D21C3/26

CPC classification number: D21C7/12

Abstract: APPARATUS AND METHOD FOR CONTINUOUS POULPING IN AN UPRIGHT ELONGATED REACTION VESSEL BY FEEDING SUBSTANTIALLY CONTINUOUSLY WOOD CHIPS AND A LIQUID INTO THE REACTION VESSEL AT ITS LOWER END TO MAINTAIN THEREIN A COLUMNAR MASS OF COMPACTED WOOD CHIPS WITH ITS LOWER END NORMALLY SPACED UPWARDLY FROM THE LOWER END OF THE VESSEL AND ADVANCING THE WOOD CHIPS UPWARDLY THROUGHOUT THE LENGTH OF SAID COLUMN BY ADVANCING LIQUID UPWARDLY THROUGH A LIQUID PROPELLING ZONE IN THE LOWER PORTION OF THE COLUMN. THE VESSEL HAS THREE VERTICALLY SPACED PRESSURE SENSING MEANS WITH THE LOWER TWO OF THE PRESSURE SENSING MEANS SPACED RESPECTIVELY ABOVE AND BELOW THE NORMAL POSITION OF THE LOWER END OF THE CHIP MASS AND THE UPPERMOST ONE OF THE PRESSURE SENSING MEANS SPACED ABOVE SAID LOWER TWO TO SENSE SAID POSITION FOR CONTROL THEREOF. COMPARATOR MEANS ARE CONNECTED TO EACH OF THE LOWER AND UPPER TWO OF THE PRESSURE SENSING MEANS FOR COMPARING THE SENSED SIGNALS THEREFROM PROVIDING OUTPUT SIGNALS RESPOSIVE TO SAID POSITION AND MEANS ARE PROVIDED FOR COMPARING THE OUTPUT SIGNAL FROM THE LOWER TWO OF THE PRESSURE SENSING MEANS WITH THE OUTPUT SIGNAL FROM THE UPPER TWO OF THE PRESSURE SENSING MEANS TO PRODUCE A CORRECTED OUTPUT SIGNAL RESPONSIVE TO THE POSITION OF THE LOWER END OF SAID CHIP MASS BY MEANS OF WHICH THE PROPELLING LIQUID FLOW RATE IS CONTROLLED TO CONTROL SAID POSITION.

公开(公告)号：US3452875A

公开(公告)日：1969-07-01

申请号：US3452875D

申请日：1967-12-29

Applicant: IMPROVED MACHINERY INC

Inventor： RICH JOHN P ,  CARLSMITH LAWRENCE ALLAN

IPC: B01D33/073 ,  B01D35/22

CPC classification number: B01D33/073 ,  B01D33/48 ,  B01D33/506 ,  B01D33/742 ,  B01D2201/282 ,  B01D2201/287

Abstract: 1,211,765. Filter. IMPROVED MACHINERY Inc. 9 Dec., 1968 [29 Dec., 1967], No. 58330/68. Heading B1D. A filter, for thickening wood pulp suspension, comprises a cylindrical perforate drum 11, located in a housing having an inlet 7 and an outlet 8 upstream of the drum and a filtrate outlet 9 downstream, the drum being cleaned by relatively rotating means which induces reverse flow and is followed by means which limits subsequent filtrate flow, to prevent immediate re-clogging of newly cleaned drum surface. In Fig. 2, drum 11 rotates, together with radial partitions 30 which divide its downstream surface, an arcuate baffle wall 24, pivoted at 26 and adjusted at 27, creates reverse flow adjacent outlet 8 by virtue of the drum and baffle wall 24 converging in the direction of drum rotation. A similar baffle wall 34, adjacent inlet 7, diverges from the drum to limit filtrate flow adjacent the inlet. The annular space 42, 10 outside the drum increases in width from inlet 7 to outlet 8 and is so dimensioned that incoming liquid in portion 42 assumes the same peripheral speed as the drum. This construction could be reversed, with outward flow of filtrate through the drum, and partitions 30 and baffle walls 24, 34 located outside the drum. In Figs. 3, 4 (not shown) the drum is fixed, filters by inward flow, and encloses a pair of rotary baffles (83), each of which has a leading portion converging towards the drum, to induce reverse flow cleanings, and a trailing portion diverging from the drum, to limit subsequent filtrate flow. Liquid flow round the outside of the screen may be in the same direction as or opposed to the baffle rotation, openings (85, 86) each serving as inlet or thickened suspension outlet. The baffle 23 in Fig. 2 could be replaced by a nozzle directing reverse flow liquid on to the screen, or both baffles 23, 33 could be replaced by a roller rotating about an axis parallel to that of the drum and having axial slots engaging partitions 30.

公开(公告)号：US3532050A

公开(公告)日：1970-10-06

申请号：US3532050D

申请日：1968-08-14

Applicant: IMPROVED MACHINERY INC

Inventor： CARLSMITH LAWRENCE ALLAN

IPC: B30B9/24 ,  B30B5/04

CPC classification number: B30B9/24

公开(公告)号：US3700548A

公开(公告)日：1972-10-24

申请号：US3700548D

申请日：1971-04-28

Applicant: IMPROVED MACHINERY INC

Inventor： RICH JOHN PARKER ,  CARLSMITH LAWRENCE ALLAN

IPC: D21C3/24 ,  D21C3/26

CPC classification number: D21C3/24

Abstract: METHODS FOR THE CONTINUOUS PULPING OF A COMPACTED MASS OF WOOD CHIPS IN AN UPRIGHT ELONGATED REACTION VESSEL HAVING MEANS FOR FEEDING WOOD CHIPS SUBSTANTIALLY CONTINUOUSLY INTO THE INLET END OF THE VESSEL AND DISCHARGING THEM SUBSTANTIALLY CONTINUOULY FROM THE OPPOSITE OUTLET END OF THE VESSEL, THE MASS OF WOOD CHIPS BEING ADVANCED THROUGH THE VESSEL FOR TREATMENT IN LIQUID SUBMERGENCE BY ADVANCING LIQUID THROUGH A PORTION OF THE SUBMERGED CHIP MASS ADJACENT THE INLET END OF THE VESSEL. IN ONE EMBODIMENT THIS IS ACCOMPLISHED BY RECIRCULATING FROM ONE INTERMEDIATE STRAINER BACK TO THE ENTRANCE END OF THE VESSEL, AT A TURBULENT LIQUID FLOW RATE DIRECTED GENERALLY ALONG THE LENGTH OF THE CHIP MASS FOR A SUBSTANTIAL DISTANCE OF AT LEAST ABOUT ONE-HALF THE CROSS SECTION DIMENSION OF THE MASS, SUCH PROVIDING A WOOD CHIP PROPELLING FORCE EFFECTIVE TO ADVANCE THE MASS OF WOOD CHIPS CONTINUOUSLY

THROUGHOUT THE LENGTH OF THE VESSEL IN ANOTHER EMBODIMENT, IT IS ACCOMPLISHED BY GENERATING LIQUID PROPELLING PULSES, PREFERABLY BY UTILIZING AN ACCUMULATOR AT ONE END OF THE VESSEL AND A CYCLING TIMER FOR OPERATING IT, SUCH PROPELLING PULSES BEING EFFECTIVE TO CAUSE THE RATE OF MOVEMENT OF THE SUBMERGENCE LIQUID RELATIVE TO THE WOOD CHIPS IN THE MASS TO VARY CYCLICALLY TO PRODUCE A CYCLIC ADVANCING MOVEMENT OF THE LIQUID AT A RATE AT LEAST NOT LESS THAN THAT OF THE ALTERNATING INTERVENING MOVEMENT OF THE LIQUID, SUCH ADVANCING MOVEMENT OF THE LIQUID BEING EFFECTIVE TO ADVANCE THE WOOD CHIPS THROUGHOUT THE LENGTH OF THE VESSEL FROM THE INPUT TO THE OUTPUT END THEREOF.