Rapid dehydrating and drying method and device usable in low temperature

• US 5,548,905 A
• Filed: 04/28/1995
• Issued: 08/27/1996
• Est. Priority Date: 04/30/1994
• Status: Expired due to Term

• Current Assignee: Kabushiki Kaisha Seibu Giken
• Original Assignee: Kabushiki Kaisha Seibu Giken
• Inventors: Kakuya, Shinji, Kuma, Toshimi
• Primary Examiner(s): KWON, JOHN
• Application Number:
  US08/430,852
• Time in Patent Office: 487 Days
• Field of Search: 34/92, 34/406, 34/412
• US Class Current: 34/92
• CPC Class Codes: F26B 13/28 for applying pressure; for brushing; for wiping
• CPC Class Codes: F26B 13/30 for applying suction F26B13/16 takes precedence
• CPC Class Codes: F26B 5/12 by suction
• CPC Class Codes: F26B 5/14 by applying pressure, e.g. wringing; by brushing; by wiping

Abstract

A high speed negative pressure air stream from a sucking-out nozzle or a combination of a high speed negative pressure air stream from the sucking-out nozzle and a high speed air jet stream from a blowing nozzle are used for drying an article. Flanges can be installed at a tip end of the sucking-out nozzle and the blowing nozzle. The air jet stream can be injected obliquely to the surface of the article to be dried. Water adhered to an article to be dried, for example, a wet mat, is rapidly divided into minute water drops which are extracted. Vermin, lice and other contaminants are also removed. The article to be dried is rapidly dehydrated and dried in a low temperature. The sucking-out nozzle provided with a flange in a sucking-out pipe is placed so that it can slide on the surface of the article to be dried. A water drop separating vessel is installed between the sucking-out pipe and the inlet of a blower. A dehumidifier is installed between the outlet of the blower and the blowing pipe. Thus, air is circulated and continuous drying is performed efficiently, without vaporization heat, within a short amount of time and requiring little energy consumption.

Claims

1. A rapid dehydrating and drying device usable at a low temperature, comprising:

a component including a blowing nozzle and a sucking-out nozzle;

a wet article to be dried placed close to and sliding on tips of said sucking-out nozzle and said blowing nozzle; and

a high speed air jet stream and a high speed negative pressure air stream simultaneously applied by said blowing nozzle and said sucking-out nozzle, respectively, to said wet article to be dried, for directly sucking out water drops and water vapor from said wet article to be dried.

2. A rapid dehydrating and drying device according to claim 1, further comprising one or more sucking-out nozzles and one or more blowing nozzles arranged alternately and in combination.

3. A rapid dehydrating and drying device according to claim 2, wherein the sucking pressure of said sucking-out nozzle is made strong during an initial step when said wet article to be dried contains a large amount of water, to suck out water drops to dehydrate, and the blowing pressure is made strong when said wet article is fully dehydrated, and at the same time the temperature of said high speed air jet stream is raised in a range to promote drying such that said wet article is not heat-deteriorated when dehydrated.

7. A rapid dehydrating and drying device according to claim 1, further comprising a blowing pipe connected to said blowing nozzle and a sucking-out pipe connected to said sucking-out nozzle, said sucking-out pipe being placed inside of said blowing pipe.

8. A rapid dehydrating and drying device according to claim 7, further comprising a plurality of blowing-pipes and sucking-out pipes.

9. A rapid dehydrating and drying device according to claim 8, wherein the sucking pressure of said sucking-out nozzle is made strong during an initial step when said wet article to be dried contains a large amount of water, to suck-out water drops to dehydrate, and the blowing pressure is made strong when said wet article is fully dehydrated, and at the same time the temperature of said high speed air jet stream is raised in a range to promote drying such that said wet article is not heat-deteriorated when dehydrated.

10. A rapid dehydrating and drying device according to claim 1, wherein said high speed air jet stream is injected obliquely to the surface of said wet article to be dried.

11. A rapid dehydrating and drying device according to claim 1, further comprising a blower, said blower forming a circulatory air flow route.

12. A rapid dehydrating and drying device according to claim 1, further comprising a water drop separating vessel provided between said sucking-out nozzle and an inlet of said blowing nozzle.

13. A rapid dehydrating and drying device according to claim 1, further comprising a dehumidifier provided in front of an inlet of said blowing nozzle.

14. A rapid dehydrating and drying device according to claim 1, wherein said wet article to be dried includes a liquid selected from a group consisting of one of a volatile liquid other than water and a mixture of said volatile liquid and water.

15. A rapid dehydrating and drying device according to claim 14, further comprising a gas-liquid separating vessel provided between said sucking-out nozzle and an inlet of said blower.

16. A rapid dehydrating and drying device according to claim 14, further comprising:

a blower for sucking and for blowing to circulate air; and

an adsorber, coupled between said inlet of said blower and said sucking-out nozzle, for adsorbing and removing vapor of said volatile liquid.

17. A rapid dehydrating and drying device according to claim 1, further comprising a flange provided at a circumferential part of tips of said sucking-out nozzle and said blowing nozzle.

18. A rapid dehydrating and drying device according to claim 17, wherein said flange having one of a plurality of grooves and ribs provided on a surface of said flange facing said wet article to be dried.

19. A rapid dehydrating and drying device according to claim 1, further comprising:

a wire conveyor located at an underside of said wet article to be dried; and

a roller conveyor located at an upper side of said wet article to be dried.

4. A rapid dehydrating and drying device usable at a low temperature comprising:

a wet article to be dried;

a sucking-out pipe having a sucking-out nozzle; and

a blowing pipe having a blowing nozzle placed inside said sucking-out pipe, a high speed air jet stream and a high speed negative pressure air stream of both said blowing pipe and said sucking-out pipe, respectively, acting on said wet article to be dried as it is transferred, water drops and water vapor being sucked out directly and powerfully from said wet article to be dried by said high speed air jet stream and said high speed negative pressure air stream to dry said wet article.

5. A rapid dehydrating and drying device according to claim 4, further comprising a plurality of sucking-out pipes and a plurality of blowing pipes.

6. A rapid dehydrating and drying device according to claim 5, wherein the sucking pressure of said sucking-out nozzle is made strong during an initial step when said wet article to be dried contains a large amount of water, to suck-out water drops to dehydrate, and the blowing pressure is made strong when said wet article is fully dehydrated, and at the same time the temperature of said high speed air jet stream is raised in a range to promote drying such that said wet article is not heat deteriorated when dehydrated.

20. A rapid dehydrating and drying method usable at a low temperature, comprising the steps of:

a) sliding a wet article to be dried along tips of a sucking-out nozzle and a blowing nozzle;

b) simultaneously applying a high speed air jet stream and a high speed negative pressure air stream by the sucking-out nozzle and the blowing nozzle, respectively; and

c) directly sucking-out water drops and water vapor from the wet article to be dried by the high speed air jet stream and the high speed negative pressure air stream.

21. A rapid dehydrating and drying method, according to claim 20, further comprising the step of:

d) arranging one or more sucking nozzles and one or more blowing nozzles alternately and in combination.

22. A rapid dehydrating and drying method according to claim 21, comprising the substeps of:

i) making the sucking pressure of the sucking-out nozzle strong during an initial step of said method to suck out water drops to alehydrate the wet article when the wet article to be dried contains a large amount of water; and

ii) making the blowing pressure strong when the article is fully dehydrated and at the same time raising the temperature of the high speed air jet stream to be within a range such that the dehydrated wet article to be dried does not heat deteriorate.

23. A rapid dehydrating and drying method according to claim 20, further comprising the step of:

d) injecting an air stream obliquely to the surface of the article to be dried.

24. A rapid dehydrating and drying method according to claim 20, comprising the step of:

d) employing a blower for making a circulatory air flow route.

25. A rapid dehydrating and drying method according to claim 20, further comprising a substep of providing a water drop separating vessel between the sucking-out nozzle and an inlet of a blower attached to the blowing nozzle.

26. A rapid dehydrating and drying method according to claim 20, further comprising a substep of providing a dehumidifier in front of an inlet of a blower attached to the blowing nozzle.

27. A rapid dehydrating and drying method according to claim 20, further comprising the substep of drying one of a volatile liquid, other than water and a mixture of a volatile liquid and water, present in the article to be dried.

28. A rapid dehydrating and drying method according to claim 27, further comprising a substep of separating a gas and a liquid in a gas-liquid separating vessel located between the sucking-out nozzle and an inlet of a blower connected to the blowing nozzle.

29. A rapid dehydrating and drying method according to claim 27, further comprising the substeps of:

i) providing a blower for sucking and blowing to circulate air; and

ii) providing an apparatus for adsorbing and removing vapor of the volatile liquid.

30. A rapid dehydrating and drying method according to claim 20, comprising the substep of:

i) transferring the article to be dried using a wire conveyor and a roller conveyor.