US4222176A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for drying granulated dielectric materials
Assignee: Individual
•
Filing: 1978-10-23
•
Granted: 1980-09-16
•
Expires: 1998-10-23
Abstract
Abstract A method for drying granulated dielectric materials including superhigh frequency heating of granules which are moved in heating space by a strong hot air flow. The granules are moved at a variable speed, a negative temperature gradient is produced, and humid air is removed from the heating space. According to the invention, the apparatus for drying granulated dielectric materials includes a superhigh frequency generator and a drying chamber which, in turn, has an input waveguide and an output waveguide interconnected by a waveguide elbow. An air inlet and a granules inlet are connected to an input of the input waveguide. The output waveguide has an air separator arranged at its input and a resonator bin arranged at its output.
Inventors
- 👤 Nikolai A. Tjurin
- 👤 Georgy V. Lysov
- 👤 Anatoly S. Koriev
- 👤 Nina L. Kuznetsova
- 👤 Anatoly T. Zamorenov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:13
CPC Classifications
F; F26; F26B; F26B3/00; F26B3/32; F26B3/34; F26B3/343; B; B29; B29B; B29B13/00; B29B13/06; B29B13/065; B29C; B29C35/00; B29C35/02; B29C35/08; B29C35/0805; B29C2035/0855
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
110 words
A method for drying granulated materials, comprising the steps of a. superhigh frequency heating of said granules, b. providing a strong air flow in a heating space, c. moving said granules at a variable speed through the heating space by using said air flow, d. producing a temperature of said air flow that is 20° to 50° C. below the maximum temperature to which said granules are heated to create a negative temperature gradient Δt=i·n·10° C., where i is the heat and mass transfer vector and n is a positive number, e. removing spent moist air from the heating space, and f. providing a continuous supply of fresh hot air.
Claim 2
Independent Claim
110 words
A method for drying granulated materials, comprising the steps of a. superhigh frequency heating of said granules, b. providing a strong air flow in a heating space, c. moving said granules at a variable speed through the heating space by using said air flow, d. producing a temperature of said air flow that is 20° to 50° C. below the maximum temperature to which said granules are heated to create a negative temperature gradient Δt=i·n·10° C., where i is the heat and mass transfer vector and n is a positive number, e. removing spent moist air from the heating space, and f. providing a continuous supply of fresh hot air.
Claim 3
Dependent Claim
44 words
A method as claimed in claim 1, wherein said granules are moved at a variable speed in said heating space by producing in the heating space alternating zones of intensified motion of said granules such that the motion of said granules is slowed down.
Claim 4
Independent Claim
89 words
An apparatus for drying granulated dielectric materials, within a heating section comprising, a. a superhigh frequency generator, b. a drying chamber having a vertical input waveguide and a vertical output waveguide, c. a waveguide elbow connecting said input waveguide to said output waveguide, d. an air inlet and a granules inlet connected to said unput waveguide, e. an air separator located in said vertical output waveguide at the upper section thereof, and f. a bin including means for producing resonance arranged at the lower portion of said output waveguide.
Claim 5
Independent Claim
89 words
An apparatus for drying granulated dielectric materials, within a heating section comprising, a. a superhigh frequency generator, b. a drying chamber having a vertical input waveguide and a vertical output waveguide, c. a waveguide elbow connecting said input waveguide to said output waveguide, d. an air inlet and a granules inlet connected to said unput waveguide, e. an air separator located in said vertical output waveguide at the upper section thereof, and f. a bin including means for producing resonance arranged at the lower portion of said output waveguide.
Claim 6
Dependent Claim
43 words
An apparatus as claimed in claim 3, wherein said bin includes a granules discharge outlet, a hose, a valve and a granules charging inlet such that said outlet of said bin is connected to said granules inlet by said hose and said valve.
Claim 7
Independent Claim
148 words
An apparatus for continuous drying of granulated dielectric materials, comprising a plurality of a. heating sections, b. a superhigh frequency generator in each said heating section, c. a drying chamber in each of said heating sections including an input waveguide and an output waveguide, d. a waveguide elbow in each of said heating sections, connecting said input waveguide to said output waveguide, e. an air inlet and a granules inlet in each said heating section connected to said input waveguide, f. an air separator in each of said heating section arranged at the upper end of said output waveguide, g. a bin including means for producing resonance in each of said heating sections, and a plurality of pipes being one less than the total number of said heating sections each connecting a bin of a downstream heating sections to said granules inlet of the next upstream heating section.
Claim 8
Independent Claim
148 words
An apparatus for continuous drying of granulated dielectric materials, comprising a plurality of a. heating sections, b. a superhigh frequency generator in each said heating section, c. a drying chamber in each of said heating sections including an input waveguide and an output waveguide, d. a waveguide elbow in each of said heating sections, connecting said input waveguide to said output waveguide, e. an air inlet and a granules inlet in each said heating section connected to said input waveguide, f. an air separator in each of said heating section arranged at the upper end of said output waveguide, g. a bin including means for producing resonance in each of said heating sections, and a plurality of pipes being one less than the total number of said heating sections each connecting a bin of a downstream heating sections to said granules inlet of the next upstream heating section.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-09-16 | 1984-03-17 | 1984-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-16 | 1988-03-17 | 1988-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-16 | 1992-03-17 | 1992-09-16 | $7700.00 | Window Closed / Lapsed |