CN116326714A - Powder pulsation combustion sterilization device and method - Google Patents
Powder pulsation combustion sterilization device and method Download PDFInfo
- Publication number
- CN116326714A CN116326714A CN202310296209.6A CN202310296209A CN116326714A CN 116326714 A CN116326714 A CN 116326714A CN 202310296209 A CN202310296209 A CN 202310296209A CN 116326714 A CN116326714 A CN 116326714A
- Authority
- CN
- China
- Prior art keywords
- powder
- combustion
- sterilization
- oxygen
- chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 96
- 230000001954 sterilising effect Effects 0.000 title claims abstract description 83
- 239000000843 powder Substances 0.000 title claims abstract description 61
- 238000004659 sterilization and disinfection Methods 0.000 title claims abstract description 60
- 230000010349 pulsation Effects 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 43
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 38
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000001257 hydrogen Substances 0.000 claims abstract description 38
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 38
- 239000001301 oxygen Substances 0.000 claims abstract description 38
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 38
- 239000002245 particle Substances 0.000 claims abstract description 21
- 239000007789 gas Substances 0.000 claims abstract description 18
- 230000010355 oscillation Effects 0.000 claims abstract description 9
- 238000000926 separation method Methods 0.000 claims abstract description 9
- 239000002360 explosive Substances 0.000 claims abstract description 8
- 238000002156 mixing Methods 0.000 claims abstract description 4
- 238000003860 storage Methods 0.000 claims description 14
- 230000000737 periodic effect Effects 0.000 claims description 6
- 239000000428 dust Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000002912 waste gas Substances 0.000 claims description 2
- 239000004480 active ingredient Substances 0.000 abstract description 3
- 238000005054 agglomeration Methods 0.000 abstract description 2
- 230000002776 aggregation Effects 0.000 abstract description 2
- 230000014759 maintenance of location Effects 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 description 11
- 238000012546 transfer Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 235000013305 food Nutrition 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 235000010469 Glycine max Nutrition 0.000 description 2
- 244000068988 Glycine max Species 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- GUTLYIVDDKVIGB-OUBTZVSYSA-N Cobalt-60 Chemical compound [60Co] GUTLYIVDDKVIGB-OUBTZVSYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000007603 infrared drying Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010907 mechanical stirring Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
- A61L2/04—Heat
- A61L2/06—Hot gas
- A61L2/07—Steam
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
- A23L3/16—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by heating loose unpacked materials
- A23L3/165—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by heating loose unpacked materials in solid state
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/26—Accessories or devices or components used for biocidal treatment
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
- F23R7/00—Intermittent or explosive combustion chambers
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
- A23V2002/00—Food compositions, function of food ingredients or processes for food or foodstuffs
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
- A61L2202/10—Apparatus features
- A61L2202/11—Apparatus for generating biocidal substances, e.g. vaporisers, UV lamps
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Epidemiology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Food Science & Technology (AREA)
- Nutrition Science (AREA)
- Polymers & Plastics (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
Abstract
The invention relates to a powder pulsation combustion sterilization device which comprises an air inlet unit, a feeding unit, a pulsation combustion chamber, a sterilization chamber and a separation unit. The invention also relates to a powder pulse combustion sterilization method, which comprises 1) mixing gases; 2) Gas pulse combustion; 3) Powder material feeding; 4) Sterilizing the materials; 5) And (5) collecting materials. Hydrogen and oxygen are introduced into the pulsation combustion chamber through the air inlet pipe and are subjected to explosive combustion, high-temperature and high-speed oscillation superheated steam impact airflow is generated, the superheated steam impact airflow is in the sterilization chamber, powder materials entering through the feed pipe are scattered into particles, the particles are suspended and distributed in the airflow, the particles are rapidly heated and sterilized, and the sterilized powder particles are collected by the collector. Compared with the traditional damp-heat sterilization device, the invention has the advantages of short sterilization time, high retention rate of active ingredients, no agglomeration of powder materials, low equipment cost and the like.
Description
Technical Field
The invention belongs to the technical field of pulse combustion, relates to a pulse combustor, and in particular relates to a powder pulse combustion sterilization device and method.
Background
Powder food and medicine sterilization is a common operation in actual production, and the current common method for powder sterilization is divided into convection heating sterilization, microwave and irradiation sterilization, chemical sterilization and the like. Radiation sterilization such as cobalt 60 sterilization belongs to non-thermal sterilization, and functional ingredients of food remain good, but consumers have doubts about the safety of the food. Chemical sterilization such as ozone and ethanol sterilization has the problem of chemical residues. The microwave sterilization has the problems of local overheating, heating non-uniformity and incomplete sterilization of materials because of the over-high heating rate. Convection heating sterilization mainly utilizes mediums such as hot air, superheated steam and the like to convect and heat powder materials, and the powder materials are sterilized by increasing the temperature of the materials, but the defects that powder particles are easy to agglomerate, the heating time is long, the content of active ingredients is reduced, the efficiency is low and the like are commonly existed. In order to improve the convection heating sterilization efficiency, the powder materials are generally moved by adopting a mechanical stirring and cylinder rotation mode, or the powder materials are thrown into a gas medium, so that the contact area of the gas medium and the powder materials is increased, and the convection heat transfer and sterilization process is promoted.
Pulse combustion is a combustion technique that operates under acoustic pulsations under control of certain acoustic conditions. In a pulse combustor, gas and air are periodically explosive burned to produce a high temperature, high velocity, oscillating tail gas stream. The oscillating tail gas flow can be used for propulsion, material drying, heating and other purposes, and is used for developing pulsation combustion engines, pulsation combustion dryers, pulsation combustion water heaters, steam boilers and other equipment. The related pulse combustion device has been successful to a certain extent because of its high combustion strength and efficiency, high heat transfer efficiency, and low gas pollutant emissions. For example, a pulse combustion spray dryer has the advantages of no need of a nozzle, high drying rate, good maintenance of product function cost, capability of processing high-viscosity high-solid-content slurry and the like.
The inventor subject group of the patent application has long been engaged in research on the basis of pulsation combustion and application, and developed various pulsation combustors and application devices, such as organic waste liquid pulsation combustion pyrolysis devices and methods (CN 110030565B), multi-tube bundle pulsation combustion infrared drying devices (CN 110131990A), pulsation combustion internal heating type fluidized bed drying devices (CN 110131966A) and the like. Aiming at the defects of the traditional convection heating sterilization technology, the subject group combines the advantages that a pulse combustor can generate high-temperature and high-speed oscillation tail gas impact flow, and provides a convection heating sterilization device and method based on pulse combustion, which are suitable for powder sterilization.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a powder pulsation combustion sterilization device and method, and solves the technical problems of easiness in agglomeration of powder particles, long heating time, reduction in the content of active ingredients of materials, higher equipment cost and the like in the conventional convection sterilization method.
The invention solves the technical problems by the following technical proposal:
a powder pulsation combustion sterilization device is characterized in that: the device comprises an air inlet unit, a feeding unit, a pulsation combustion chamber, a sterilization chamber and a separation unit, wherein the air inlet unit comprises a hydrogen storage tank, a hydrogen one-way control valve, a hydrogen flow regulator, an oxygen storage tank, an oxygen one-way control valve and an oxygen flow regulator, the hydrogen storage tank, the hydrogen one-way control valve and the hydrogen flow regulator are sequentially connected through pipelines, the oxygen storage tank, the oxygen one-way control valve and the oxygen flow regulator are sequentially connected through pipelines, and the hydrogen flow regulator and the oxygen flow regulator are commonly connected to the pulsation combustion chamber through pipelines; the feeding unit comprises a hopper and a screw conveyer, and powder materials are conveyed to a feeding pipe arranged on the sterilization chamber by the screw conveyer after entering the hopper; the right-hand member of sterilizing the room is connected the separation unit, the separation unit includes cyclone, sack cleaner and collector, cyclone's upper end is connected to the sack cleaner, cyclone's lower extreme is connected with first collector, sack cleaner's upper end is provided with waste gas blast pipe, sack cleaner's lower extreme is connected with the second collector.
Moreover, the screw feeder is disposed obliquely downward from left to right.
And the diameter of the feeding pipe is 20-30 mm.
The pulsation combustion chamber is long L 1 Outer diameter D 1 Wherein L is a cylindrical stainless steel cavity of 1 230-250 mm, D 1 65-70mm, wherein the wall thickness of the pulsation combustion chamber is 1.5mm; the wall surface of the cavity body of the pulsation combustion chamber is provided with an igniter, and the pulsation combustion chamber is ignited by the igniter to form periodic explosive combustion after hydrogen and oxygen are introduced, so that high-temperature and high-speed oscillation superheated steam impact airflow is generated.
The sterilizing chamber is long L 2 Outer diameter D 2 Wherein L is 2 Is 590-610 mm, D 2 33-36 mm, wherein the wall thickness of the sterilization chamber is 1.5mm; powder introduced into the sterilizing chamber is scattered into particles by the impact flow of the superheated steam from the pulsation combustion chamber, and the particles are dispersed in the impact flow.
A powder pulse combustion sterilization method is characterized in that: the method comprises the following steps:
1) Mixing of gases: the hydrogen and the oxygen are respectively controlled to be introduced into the pulsation combustion chamber through the oxygen one-way control valve and the hydrogen one-way control valve, and are mixed in the pulsation combustion chamber to provide combustible gas for pulsation combustion;
2) Gas pulse combustion: when the hydrogen and the oxygen enter the combustion chamber, an igniter is ignited, and periodic explosive combustion is formed by ignition of the igniter, so that high-temperature high-speed oscillation superheated steam impact airflow is generated;
3) Powder material feeding: when the pulsation combustion reaches a stable running state, powder materials are introduced into the sterilizing chamber through a feed pipe;
4) And (3) material sterilization: powder materials which are introduced into the sterilizing chamber are scattered into particles by the impact flow of the superheated steam from the pulsation combustion chamber, and the particles are dispersed in the impact flow and are rapidly heated and sterilized;
5) And (3) collecting materials: the powder materials which are heated and sterilized by the pulse combustion impact airflow are separated by a cyclone separator and a bag-type dust collector and are collected in a first collector and a second collector.
The invention has the advantages and beneficial effects that:
1. according to the powder pulse combustion sterilization device, the powder material can be instantaneously scattered into particles by utilizing high-temperature and high-speed oscillation superheated steam impact airflow generated by pulse combustion, and the particles are dispersed in the impact airflow to play a role in atomization.
2. According to the powder pulse combustion sterilization device, powder materials are scattered by utilizing high-speed impact airflow generated by pulse combustion, gas-particles are fully contacted, and the heat transfer contact area of the gas-powder is increased. Meanwhile, due to the high temperature of the impact air flow, the vibration of the air flow weakens a heat transfer boundary layer and other reasons, the powder material is rapidly heated, the sterilization time is greatly shortened, and functional components in the material are kept good.
3. The powder pulse combustion sterilization device provided by the invention has the advantages that hydrogen and oxygen are combusted and reacted in the pulse combustor to generate high-temperature superheated steam, and compared with a traditional superheated steam generation device, the pulse combustor device is compact, simple in structure and low in equipment investment cost.
Drawings
FIG. 1 is a sterilization flow chart of the present invention;
fig. 2 is a schematic structural view of the sterilizing apparatus of the present invention.
Description of the reference numerals
1. A hydrogen storage tank; 2. an oxygen storage tank; 3. a hydrogen one-way control valve; 4. an oxygen one-way control valve; 5. a hydrogen flow regulator; 6. an oxygen flow regulator; 7. a pulsating combustion chamber; 8. an igniter; 9. a sterilization chamber; 10. a hopper; 11. a screw conveyor; 12. a feed pipe; 13. a cyclone separator; 14. a bag-type dust collector; 15. a material; 16. a first collector 17 a second collector; 18. an exhaust pipe.
Detailed Description
The invention is further illustrated by the following examples, which are intended to be illustrative only and not limiting in any way.
A powder pulsation combustion sterilization device is characterized in that: comprises an air inlet unit, a feeding unit, a pulsation combustion chamber 7, a sterilizing chamber 9 and a separating unit.
The air inlet unit comprises a hydrogen storage tank 1, a hydrogen one-way control valve 3, a hydrogen flow regulator 5, an oxygen storage tank 2, an oxygen one-way control valve 4 and an oxygen flow regulator 6, wherein the hydrogen storage tank 1, the hydrogen one-way control valve 3 and the hydrogen flow regulator 5 are sequentially connected through pipelines, the oxygen storage tank 2, the oxygen one-way control valve 4 and the oxygen flow regulator 6 are sequentially connected through pipelines, and the hydrogen flow regulator 5 and the oxygen flow regulator are commonly connected to the pulsation combustion chamber 7 through pipelines; the feeding unit comprises a hopper 10 and a screw conveyor 11, and powder materials enter the hopper 10 and are conveyed to a feeding pipe 12 arranged on the sterilization chamber 9 by the screw conveyor 11; the right-hand member of sterilization room 9 is connected the separation unit, the separation unit includes cyclone 13, sack cleaner 14 and collector, cyclone 13's upper end is connected to sack cleaner 14, cyclone 13's lower extreme is connected with first collector 16, sack cleaner 14's upper end is provided with exhaust pipe 18, sack cleaner 14's lower extreme is connected with second collector 17.
The screw feeder 11 is arranged obliquely downwards from left to right, so that the powder can be conveyed to the sterilizing chamber in a better downward movement.
The diameter of the feeding pipe 12 is 20-30 mm, and the larger the diameter is, the more difficult the formation of the material column is, so the diameter range is convenient for the formation of the material column, and the sterilization efficiency is improved.
The pulsation combustion chamber 7 is long L 1 Outer diameter D 1 Wherein L is a cylindrical stainless steel cavity of 1 230-250 mm, D 1 65-70mm, the wall thickness of the pulsation combustion chamber 7 is 1.5mm; the wall surface of the cavity body of the pulsation combustion chamber 7 is provided with an igniter 8, and after hydrogen and oxygen are introduced into the pulsation combustion chamber, the pulsation combustion chamber is ignited by the igniter to form periodic explosive combustion, so that high-temperature and high-speed oscillation superheated steam impact airflow is generated.
The sterilizing chamber 9 is long L 2 Outer diameter D 2 Wherein L is 2 Is 590-610 mm, D 2 33-36 mm, wherein the wall thickness of the sterilizing chamber 9 is 1.5mm; the powder introduced into the sterilizing chamber 9 is broken up into particles by the impact flow of the superheated steam from the pulsating combustion chamber 7, and the particles are dispersed in the impact flow.
A powder pulsation combustion sterilization method is characterized in that: the method comprises the following steps:
1) Mixing of gases: the hydrogen and the oxygen are respectively controlled to be introduced into the pulsation combustion chamber through the oxygen one-way control valve and the hydrogen one-way control valve, and are mixed in the pulsation combustion chamber to provide combustible gas for pulsation combustion;
2) Gas pulse combustion: when the hydrogen and the oxygen enter the combustion chamber, an igniter is ignited, and periodic explosive combustion is formed by ignition of the igniter, so that high-temperature high-speed oscillation superheated steam impact airflow is generated;
3) Powder material feeding: when the pulsation combustion reaches a stable running state, powder materials are introduced into the sterilizing chamber through a feed pipe;
4) And (3) material sterilization: powder materials which are introduced into the sterilizing chamber are scattered into particles by the impact flow of the superheated steam from the pulsation combustion chamber, and the particles are dispersed in the impact flow and are rapidly heated and sterilized;
5) And (3) collecting materials: the powder materials which are heated and sterilized by the pulse combustion impact airflow are separated by a cyclone separator and a bag-type dust collector and are collected in a first collector and a second collector.
Comparison of sterilizing effect
Experiments are carried out by taking soybean powder as an experimental material, and the pulse combustion sterilization and the superheated steam powder sterilization in the prior art are respectively used for sterilization treatment, so that the following conclusion is obtained: the sterilizing time of the pulse combustion powder can be greatly shortened, and the soybean powder is sterilized by using the superheated steam at 180 ℃ to reduce the bacterial count to 10 2 About 15 minutes per gram is needed, and the time for sterilizing by pulse combustion powder can be shortened to be within a few seconds, so that the sterilizing time is greatly shortened.
Although the embodiments of the present invention and the accompanying drawings have been disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit and scope of the invention and the appended claims, and therefore the scope of the invention is not limited to the embodiments and the disclosure of the drawings.
Claims (6)
1. A powder pulsation combustion sterilization device is characterized in that: the device comprises an air inlet unit, a feeding unit, a pulsation combustion chamber (7), a sterilization chamber (9) and a separation unit, wherein the air inlet unit comprises a hydrogen storage tank (1), a hydrogen one-way control valve (3), a hydrogen flow regulator (5), an oxygen storage tank (2), an oxygen one-way control valve (4) and an oxygen flow regulator (6), the hydrogen storage tank (1), the hydrogen one-way control valve (3) and the hydrogen flow regulator (5) are sequentially connected through pipelines, the oxygen storage tank (2), the oxygen one-way control valve (4) and the oxygen flow regulator (6) are sequentially connected through pipelines, and the hydrogen flow regulator (5) and the oxygen flow regulator are commonly connected to the pulsation combustion chamber (7) through the pipelines; the feeding unit comprises a hopper (10) and a screw conveyor (11), and powder materials enter the hopper (10) and are conveyed to a feeding pipe (12) arranged on the sterilization chamber (9) by the screw conveyor (11); the right-hand member of room (9) disinfects is connected the separation unit, the separation unit includes cyclone (13), sack cleaner (14) and collector, the upper end of cyclone (13) is connected to sack cleaner (14), the lower extreme of cyclone (13) is connected with first collector (16), the upper end of sack cleaner (14) is provided with waste gas blast pipe (18), the lower extreme of sack cleaner (14) is connected with second collector (17).
2. The powder pulse combustion sterilization apparatus according to claim 1, wherein: the screw feeder (11) is arranged obliquely downwards from left to right.
3. The powder pulse combustion sterilization apparatus according to claim 1, wherein: the diameter of the feeding pipe (12) is 20-30 mm.
4. The powder pulse combustion sterilization apparatus according to claim 1, wherein: the pulsation combustion chamber (7) is long L 1 Outer diameter D 1 Wherein L is a cylindrical stainless steel cavity of 1 230-250 mm, D 1 65-70mm, the wall thickness of the pulsation combustion chamber (7) is 1.5mm; the pulse combustion chamber (7) is provided with an igniter (8) on the wall surface of the cavity body, and after hydrogen and oxygen are introduced into the pulse combustion chamber, the pulse combustion chamber is ignited by the igniter to form periodic explosive combustion, so that high-temperature and high-speed oscillation superheated steam impact airflow is generated.
5. The powder pulse combustion sterilization apparatus according to claim 1, wherein: the sterilizing chamber (9) is long L 2 Outer diameter D 2 Wherein L is 2 Is 590-610 mm, D 2 33-36 mm, wherein the wall thickness of the sterilizing chamber (9) is 1.5mm; powder introduced into the sterilizing chamber (9) is scattered into particles by the impact flow of the superheated steam from the pulsation combustion chamber (7), and the particles are dispersed in the impact flow.
6. The sterilization method of a powder pulse combustion sterilization apparatus according to any one of claims 1 to 5, characterized in that: the method comprises the following steps:
1) Mixing of gases: the hydrogen and the oxygen are respectively controlled to be introduced into the pulsation combustion chamber through the oxygen one-way control valve and the hydrogen one-way control valve, and are mixed in the pulsation combustion chamber to provide combustible gas for pulsation combustion;
2) Gas pulse combustion: when the hydrogen and the oxygen enter the combustion chamber, an igniter is ignited, and periodic explosive combustion is formed by ignition of the igniter, so that high-temperature high-speed oscillation superheated steam impact airflow is generated;
3) Powder material feeding: when the pulsation combustion reaches a stable running state, powder materials are introduced into the sterilizing chamber through a feed pipe;
4) And (3) material sterilization: powder materials which are introduced into the sterilizing chamber are scattered into particles by the impact flow of the superheated steam from the pulsation combustion chamber, and the particles are dispersed in the impact flow and are rapidly heated and sterilized;
5) And (3) collecting materials: the powder materials which are heated and sterilized by the pulse combustion impact airflow are separated by a cyclone separator and a bag-type dust collector and are collected in a first collector and a second collector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310296209.6A CN116326714A (en) | 2023-03-24 | 2023-03-24 | Powder pulsation combustion sterilization device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310296209.6A CN116326714A (en) | 2023-03-24 | 2023-03-24 | Powder pulsation combustion sterilization device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116326714A true CN116326714A (en) | 2023-06-27 |
Family
ID=86891002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310296209.6A Pending CN116326714A (en) | 2023-03-24 | 2023-03-24 | Powder pulsation combustion sterilization device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116326714A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101571289A (en) * | 2009-04-14 | 2009-11-04 | 哈尔滨工业大学 | Fuel gas intermittent combustion heating furnace |
| DE102015009703A1 (en) * | 2015-07-30 | 2017-02-02 | Glatt Ingenieurtechnik Gmbh | Process for the thermal drying and / or activation of zeolite |
-
2023
- 2023-03-24 CN CN202310296209.6A patent/CN116326714A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101571289A (en) * | 2009-04-14 | 2009-11-04 | 哈尔滨工业大学 | Fuel gas intermittent combustion heating furnace |
| DE102015009703A1 (en) * | 2015-07-30 | 2017-02-02 | Glatt Ingenieurtechnik Gmbh | Process for the thermal drying and / or activation of zeolite |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2237593C (en) | Process and apparatus for drying and heating | |
| US6457425B1 (en) | Method and apparatus for combustion of residual carbon in fly ash | |
| CN110295063B (en) | Biomass external heating method heat and carbon co-production system and method | |
| CN212188526U (en) | Flue gas treatment system after sludge treatment | |
| CN102297431A (en) | Method and device for decoupling and burning solid waste with high water content | |
| CN102679541A (en) | Biomass fuel pulse combustion hot blast device and use method thereof | |
| CN206940810U (en) | A kind of self-heating low-tar biomass gasifier | |
| CN106215914A (en) | A kind of Powdered Activated Carbon regenerating furnace using catalytic oxidation to carry out pretreatment | |
| CN114806614B (en) | Rotary kiln pyrolysis carbonization device and process based on smoke injection recycling | |
| CN110775975A (en) | Furnace tube fixed type active carbon drying and regenerating integrated furnace | |
| CN1912354A (en) | Integral process and equipment of garbage fuel synthesis and burning generation | |
| CN116326714A (en) | Powder pulsation combustion sterilization device and method | |
| CN116406346A (en) | Sewage sludge fuel catalytic combustion device | |
| CN110257093B (en) | Control method of carbonization system in biomass external heating method heat and carbon co-production system | |
| CN107511123A (en) | A kind of atomization flame nano particle synthesis system for strengthening mixing based on more eddy flows | |
| CN206046045U (en) | A kind of Powdered Activated Carbon regenerating furnace | |
| CN208250233U (en) | A kind of continuous thermal cracking integrated system of biomass multiple-unit | |
| CN202757256U (en) | Pulse combustion type hot blast heating device for biomass fuels | |
| CN206385100U (en) | Pulsed circle fluidized-bed gasification furnace | |
| CN206082545U (en) | Powder activity charcoal regenerator that adoption catalytic oxidation carries out preliminary treatment | |
| RU2299089C1 (en) | Reactor for catalytic purification of the gaseous outbursts | |
| CN203582817U (en) | Biomass pyrolysis gasification furnace | |
| CN103191570A (en) | Recycling device capable of decomposing and burning matters through vapor clash | |
| CN208871629U (en) | A kind of refuse gasification and biomass combustion integrated system | |
| CN106753578A (en) | Pulsed circle fluidized-bed gasification furnace and the gasification system and method using the gasification furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |