Operating controls for a vertical separator

Abstract

A vertical separator system with an enhanced control mechanism which employs one or more micro-adjustment features. The micro-adjustment features include a combination of an air bladder, a mass sensor, and/or a bleed valve.

Claims

1. A vertical separator system comprising: a) a vertical separator mechanism having a vertical separator tube consisting of an upper section, a middle section, and a lower section, and a fan proximate to the upper section for selectively creating an airflow within the vertical separator tube through an open end at the lower section; b) a feed mechanism for depositing material into the middle section of the vertical separator tube; c) an airflow sensor positioned at the lower section of the vertical separator tube; d) an adjustable air bladder positioned within the vertical separator tube; and, e) a control mechanism which, 1) establishes an initial speed for the fan; and, 2) based upon data from the airflow sensor, adjusts the adjustable air bladder to obtain a desired airflow within the vertical separator tube.

2. The vertical separator system according to claim 1, wherein the adjustable air bladder is positioned substantially in the middle section and upper section of the vertical separator tube.

3. The vertical separator system according to claim 2, further including, a) a source of compressed air; and, b) a remotely controlled valve being activated by the control mechanism for selective communication of compressed air from the source of compressed air to the air bladder.

4. The vertical separator system according to claim 1: a) further including a mass sensor positioned at the upper section of the vertical separator tube; and wherein b) the feed mechanism is selectively adjustable; and, c) the control mechanism adjusts the feed mechanism based upon data from the mass sensor to obtain a selected mass value within the upper section of the vertical separator tube.

5. The vertical separator system according to claim 4, wherein the selected mass is within a range of values established in a memory unit.

6. The vertical separator system according to claim 4, a) further including a remotely controlled bleed valve selectively communicating ambient air into the upper section of the vertical separator tube; and, b) wherein the control mechanism adjusts the remotely controlled bleed valve based upon data from the airflow sensor.

7. A vertical separator system comprising: a) a vertical separator mechanism having, a vertical separator tube consisting of an upper section, a middle section, and a lower section, and a fan proximate to the upper section for selectively creating an airflow within the separator tube through an open end at the lower section; b) a selectively adjustable feed mechanism for depositing material into the middle section of the vertical separator tube; c) a mass sensor positioned at the upper section of the vertical separator tube; and, 1) a control mechanism which, based upon data from the mass sensor, selectively adjusts the feed mechanism to obtain a selected mass value within the upper section of the vertical separator tube.

8. The vertical separator system according to claim 7, wherein the selected mass is established within a range of values from a memory unit.

9. The vertical separator system according to claim 7, a) further including an adjustable air bladder positioned within the vertical separator tube; b) further including an airflow sensor position at the lower section of the vertical separator tube; and, c) wherein the control mechanism selectively adjusts air pressure within the adjustable air bladder based upon data from the airflow sensor.

10. The vertical separator system according to claim 9: a) further including a remotely controlled bleed valve selectively communicating ambient air into the upper section of the vertical separator tube; and, b) wherein the control mechanism selectively adjusts the remotely controlled bleed valve based upon data from the airflow sensor.

11. A vertical separator system comprising: a) a vertical separator mechanism having, a vertical separator tube consisting of an upper section, a middle section, and a lower section, and a fan proximate to the upper section for selectively creating an airflow within the separator tube through an open end at the lower section; b) a feed mechanism for depositing material into the middle section of the vertical separator tube; c) a remotely controlled bleed valve selectively communicating ambient air into the upper section of the vertical separator tube; d) an airflow sensor positioned at the lower section of the vertical separator; and, e) a control mechanism which, 1) establishes an initial speed for the fan, and, 2) based upon data from the airflow sensor, selectively adjusts the remotely controlled bleed valve.

12. The vertical separator system according to claim 11, a) further including an adjustable air bladder positioned within the vertical separator tube; and, b) wherein the control mechanism, selectively adjusts the adjustable air bladder based upon data from the airflow.

13. The vertical separator system according to claim 11, a) further including a mass sensor positioned at the upper section of the vertical separator tube; and, b) wherein the control mechanism selectively adjusts the feed mechanism based upon data from the mass sensor to obtain a desired mass within the upper section of the vertical separator tube.

Description

DRAWINGS IN BRIEF

[0019] FIG. 1 diagrams the use of all three sensors on a single unit although the invention is not so limited and may include any combination of the three sensors and control.

DRAWINGS IN DETAIL

[0020] FIG. 1 diagrams the preferred embodiment in which all three sensors on a single unit. Note, the invention is not so limited. Other embodiments utilize any combination of the three sensors and control.

[0021] The invention is a vertical separator system of vertical separator tube 10 utilizing fan 11 to create an airflow 12A/12B through the vertical separator tube 10. The present invention utilizes an enhanced control mechanism 13. Micro-adjustment features for the various embodiments include any combination of an air bladder 16, a mass sensor 14B, a bleed valve 14C, and/or an airflow speed sensor 14A.

[0022] The vertical separator tube 10 consisting of an upper section 10A, a middle section 10B, and a lower section 10C. Fan 11 is proximate to the upper section 10A and selectively creates an airflow (illustrated by arrows 12A and 12B) within the vertical separator tube 10 from an open end at the lower section 10C.

[0023] Feed mechanism 17 deposits material into the middle section 10B of the vertical separator tube 10. An airflow sensor 14A is positioned at the lower section 10C of the vertical separator tube 10 and monitors the airflow 12A/12B. Control mechanism 13 receives signals from airflow sensor 14A and control mechanism 13 is able to control the speed of fan 11 to adjust the airflow (12A and 12B) in a “gross” manner.

[0024] Adjustable air bladder 16 is positioned within the vertical separator tube 10. Once control mechanism 13 establishes an initial speed for the fan 11, and, based upon data from the airflow sensor 14A, control mechanism 13 directs the inflation or deflation of air bladder 16 using air source 15B or pump 15A. This minute adjustment of air bladder 16 increases or decreases the cross sectional area of the center section 10B so that the desired airflow within the vertical separator tube 10 is obtained.

[0025] Air bladder 16 is inflated using compressed air 15B; air bladder 16 is evacuated using pump or vent valve 15A. Both the compressed air 15B and pump/vent valve 15A are controlled by control mechanism 13 to obtain the desired airflow as measured by sensor 14A.

[0026] In this embodiment, a mass sensor 14B is positioned at the upper section 10A of the vertical separator tube 10. Mass sensor 14B determines the mass of material being drawn up tube 10. If the mass sensor 14B indicates that the mass at the upper section 10A has become too high (indicating that the feed rate is too high or if there is too much gangue in it) then control mechanism 13 slows down the feed of material through feed mechanism 17.

[0027] In like fashion, if mass sensor 148 indicates that the mass of material in the upper section is “low” (indicating that the feed is too high or if the feed material has little gangue), then feed mechanism 17 is adjusted by control mechanism 13 to increase the feed rate.

[0028] In this manner, the feed rate is optimized to meet the capability of the mechanism.

[0029] Ideally, the mass is maintained within a range as established within a memory accessed by the control mechanism 13.

[0030] Another mechanism used by the present invention to minutely control airflow 12A/12B is through the use of a bleed valve 14C. Using data from the airflow sensor 14A, the bleed valve is selectively opened to allow ambient air into the upper section 10A of the vertical separator tube 10; conversely, the overall airflow 12a/12B is accelerated when bleed valve 14C is constricted by the control mechanism 13.

[0031] Bleed valve 14C provides a mechanism for adjusting the airflow 12A/12B in a minute fashion once the fan 11 has reached its operating state.

[0032] It is clear that the -present invention provides a need more dynamic control system for vertical separators.