CN114947166A - Biomass baking deflagration-proof method - Google Patents
Biomass baking deflagration-proof method Download PDFInfo
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- CN114947166A CN114947166A CN202210509091.6A CN202210509091A CN114947166A CN 114947166 A CN114947166 A CN 114947166A CN 202210509091 A CN202210509091 A CN 202210509091A CN 114947166 A CN114947166 A CN 114947166A
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B3/00—Preparing tobacco in the factory
- A24B3/10—Roasting or cooling tobacco
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
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Abstract
The invention discloses a biomass baking anti-deflagration method, which comprises the following steps: firstly, installing a tobacco on-kang technology to install tobacco leaves into a bulk curing barn; secondly, inserting a baffle plate of a biomass fuel hopper; thirdly, placing a button of a feeding motor on a stop gear, and stopping feeding; fourthly, starting the circulating fan to work; fifthly, opening a furnace door of the hearth after the circulating fan runs for T minutes; pulling out the striker plate; starting feeding, and when the feeding amount reaches m kilograms, placing a feeding motor button on a stop block to stop feeding; setting the button of the igniter in an automatic gear to start ignition; setting a blower button to an automatic gear, and starting blowing; sixthly, observing the combustion condition of the fuel in the hearth, when the combustion flame rises, placing a button of a feeding motor in an automatic gear, automatically feeding, and closing the furnace door after the combustion flame is vigorous; and step seven, setting a baking process and starting baking. The problem that the hearth is subjected to deflagration frequently in the prior art is solved.
Description
Technical Field
The invention relates to the technical field of anti-detonation, in particular to a biomass baking anti-detonation method.
Background
In recent years, the biomass energy curing barn is widely popularized and used, has the tendency of gradually replacing the baking of a coal-fired curing barn, the conventional operation steps of the existing biomass energy curing barn are as follows,
firstly, a tobacco upper kang mounting technology is adopted to mount tobacco leaves into a bulk curing barn, and a curing barn door, a cold air inlet door and a moisture exhaust window are closed;
secondly, switching on a power circuit of the equipment device, and filling the biomass fuel;
step three, closing the furnace door, electrifying the main machine, opening the main machine box, placing a feeding motor button in an automatic gear, and starting feeding;
fourthly, putting an igniter button into an automatic gear to start ignition;
fifthly, placing the buttons of the air blower in an automatic gear, starting air blowing, and placing the rest buttons in automatic positions;
sixthly, starting the circulating fan to work;
and step seven, setting a baking process and starting baking.
However, in the process of popularization and use in the conventional operation, the hearth often explodes, which damages baking equipment and also harms the bodies of operators.
Disclosure of Invention
In order to solve the defects and shortcomings of the prior art, the invention aims to provide a biomass baking anti-detonation method.
The technical scheme of the invention is as follows: a biomass baking anti-deflagration method comprises the following steps:
firstly, a tobacco on-kang mounting technology is adopted to mount tobacco leaves into a bulk curing barn, and a curing barn door, a cold air inlet door and a moisture exhaust window are closed;
secondly, switching on a power supply circuit of a device, inserting a baffle plate of a biomass fuel hopper, and loading the biomass fuel;
thirdly, electrifying the host, opening the host box, placing a feeding motor button on a stop block, and stopping feeding; putting an igniter button on a stop gear to stop ignition; placing a blower button on a stop gear, and stopping blowing air; the rest buttons are arranged at automatic positions;
fourthly, starting the circulating fan to work;
fifthly, opening a furnace door of the hearth after the circulating fan runs for T minutes; pulling out the striker plate; opening a main case of the automatic control instrument, placing a feeding motor button on a manual gear, starting feeding, placing the feeding motor button on a stop gear when feeding reaches m kilograms, and stopping feeding; setting the button of the igniter in an automatic gear to start ignition; setting a blower button to an automatic gear, and starting blowing;
sixthly, observing the combustion condition of the fuel in the hearth, when the combustion flame rises, placing a button of a feeding motor in an automatic gear, automatically feeding, and closing the furnace door after the combustion flame is vigorous;
and step seven, setting a baking process and starting baking.
Further, the first step is preceded by: checking whether the roasting room facilities and equipment used for roasting are intact and airtight and whether the heating equipment is in place for cleaning ash, and executing the first step if the roasting room facilities and equipment are intact and airtight and the heating equipment is in place for cleaning ash.
Preferably, T is equal to or greater than 30.
Preferably, said m is less than 1.
Specifically, the bulk curing barn is a biomass curing barn of Anhui Chinese traditional medicine.
The invention has the beneficial effects that: compared with the prior art, the feeding is stopped before ignition, firstly, the material basis (namely fuel) for generating smoke is controlled within a certain range, the smoke is prevented from being too much, secondly, the combustion explosion caused by the mixture formed by a large amount of fuel and combustion air is avoided, the furnace door is opened before ignition, the fuel is vigorously combusted after ignition, and then the furnace door is closed, so that the smoke and the mixture are discharged to reduce the concentration, the concentration is lower than the combustion explosion point, the detonation phenomenon is avoided, the injury of personnel is avoided, and the aim of safe baking is fulfilled.
Drawings
FIG. 1 is a flowchart of a method of example 1 of the present invention.
Detailed Description
The invention will be further described with reference to the following drawings and specific embodiments:
example 1 was carried out:
in order to solve the problem that deflagration of a hearth is easy to occur in the conventional operation steps of a biomass energy curing barn, the embodiment adopts a biomass baking deflagration prevention method, and with reference to fig. 1, the method comprises the following steps:
firstly, a tobacco on-kang mounting technology is adopted to mount tobacco leaves into a bulk curing barn, and a curing barn door, a cold air inlet door and a moisture exhaust window are closed;
secondly, switching on a power supply circuit of a device, inserting a baffle plate of a biomass fuel hopper, and loading the biomass fuel; the baffle plate of the biomass fuel hopper is inserted, so that the phenomenon that the feeding is out of control due to misoperation of operators is prevented;
thirdly, electrifying the host, opening the host box, placing a feeding motor button on a stop block, and stopping feeding; putting an igniter button on a stop gear to stop ignition; placing a blower button on a stop gear, and stopping blowing air; the rest buttons are arranged at automatic positions; before ignition, the circulating fan is started to blow away tobacco leaves and the tobacco leaves are blown into an air ventilation path;
fourthly, the circulating fan starts to work and has the functions of blowing away the tobacco leaves, opening the air path and drying all the tobacco leaves;
fifthly, after the running time of the circulating fan is T minutes, opening a furnace door of the hearth to ensure that the hearth is communicated with the outside, and preventing a mixture of fuel and combustion-supporting air from accumulating in a closed narrow space to reach an explosion critical value and igniting to generate deflagration; the material baffle plate is pulled out, and the function of the material baffle plate is that the hopper feeds materials; opening a main case of the automatic control instrument, placing a feeding motor button in a manual gear, starting feeding, placing the feeding motor button in a stop gear when feeding reaches m kilograms, and stopping feeding, wherein the automatic control device has the function of manually controlling feeding amount, so that deflagration caused by overhigh automatic feeding speed and excessive ignition of accumulated materials of equipment is avoided; setting the button of the igniter in an automatic gear to start ignition; the button of the blower is placed in an automatic gear, the blower starts blowing, and the feeding ignition is stopped after the feeding amount meets the requirement, so that the ignition is ensured under the condition of less fuel, and the deflagration phenomenon is avoided;
sixthly, observing the combustion condition of the fuel in the hearth, when the combustion flame rises, placing a feeding motor button in an automatic gear, automatically feeding, closing the furnace door after the combustion flame is vigorous, confirming that the fuel is normally combusted, automatically feeding, closing the furnace door, and thoroughly eliminating the potential danger of deflagration;
and step seven, setting a baking process and starting baking.
The prior art causes the deflagration: 1) the furnace door is closed, and the hearth is closed and has a narrow space; 2) the feeding and ignition are started simultaneously, the automatic feeding speed is high, the temperature rise of the igniter is slow, a large amount of fuel is gathered in the combustion table before the fuel reaches an ignition point, firstly, the igniter is caused to heat the fuel to generate a large amount of smoke, secondly, the mixture of the fuel and combustion air reaches an explosion critical value, the temperature of the igniter reaches the ignition point of the fuel, the smoke and the mixture are ignited to generate deflagration, the instantaneous pressure of the hearth is increased, at the moment, an operator opens the furnace door by hands, the pressure in the hearth rapidly pops up the door, and the operator is injured. The invention stops feeding before ignition, firstly controls the material basis (namely fuel) of the generated smoke in a certain range to avoid excessive smoke, secondly avoids the explosion caused by the mixture formed by a large amount of fuel and combustion air, opens the furnace door before ignition, burns the fuel vigorously after ignition, and then closes the furnace door to discharge the smoke and the mixture to reduce the concentration, so that the concentration is lower than the concentration of the explosion point, thereby avoiding the occurrence of deflagration phenomenon, avoiding the injury of personnel and achieving the aim of safe baking.
Further, the first step is preceded by: checking whether the roasting room facilities and equipment used for roasting are intact and airtight and whether the heating equipment is in place for cleaning ash, and executing the first step if the roasting room facilities and equipment are intact and airtight and the heating equipment is in place for cleaning ash.
Preferably, T is equal to or greater than 30.
Preferably, said m is less than 1. So that the fuel can not cause explosion due to too much fuel and can not cause misfire due to too little fuel.
Specifically, the bulk curing barn is a biomass curing barn of Anhui Chinese traditional medicine.
The foregoing is a further detailed description of the invention in connection with specific preferred embodiments and it is not intended to limit the invention to the specific embodiments described. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (5)
1. The biomass baking anti-deflagration method is characterized by comprising the following steps of:
firstly, a tobacco on-kang mounting technology is adopted to mount tobacco leaves into a bulk curing barn, and a curing barn door, a cold air inlet door and a moisture exhaust window are closed;
secondly, switching on a power supply circuit of a device, inserting a baffle plate of a biomass fuel hopper, and loading the biomass fuel;
thirdly, electrifying the host, opening the host box, placing a feeding motor button on a stop block, and stopping feeding; putting an igniter button on a stop gear to stop ignition; placing a blower button on a stop gear, and stopping blowing air; the rest buttons are arranged at automatic positions;
fourthly, starting the circulating fan to work;
fifthly, opening a furnace door of the hearth after the circulating fan runs for T minutes; pulling out the striker plate; opening a main case of the automatic control instrument, placing a feeding motor button on a manual gear, starting feeding, placing the feeding motor button on a stop gear when feeding reaches m kilograms, and stopping feeding; setting the button of the igniter in an automatic gear to start ignition; setting a blower button to an automatic gear, and starting blowing;
sixthly, observing the combustion condition of the fuel in the hearth, when the combustion flame rises, placing a button of a feeding motor in an automatic gear, automatically feeding, and closing the furnace door after the combustion flame is vigorous;
and step seven, setting a baking process and starting baking.
2. The biomass torrefaction anti-deflagration method of claim 1,
the first step is also preceded by: checking whether the roasting room facilities and equipment used for roasting are intact and airtight and whether the heating equipment is in place for cleaning ash, and executing the first step if the roasting room facilities and equipment are intact and airtight and the heating equipment is in place for cleaning ash.
3. The biomass torrefaction anti-deflagration method of claim 1, wherein T is greater than or equal to 30.
4. The biomass torrefaction anti-deflagration method of claim 1, wherein m is less than 1.
5. The biomass torrefaction anti-deflagration method of claim 1, wherein the bulk curing barn is an Anhui Chinese biomass curing barn.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210509091.6A CN114947166B (en) | 2022-05-10 | 2022-05-10 | Biomass baking explosion-proof method |
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| CN202210509091.6A CN114947166B (en) | 2022-05-10 | 2022-05-10 | Biomass baking explosion-proof method |
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| CN114947166B CN114947166B (en) | 2023-05-30 |
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Citations (14)
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| US3822981A (en) * | 1972-01-26 | 1974-07-09 | Kidde & Co Walter | Flame monitoring system |
| GB1479813A (en) * | 1974-09-07 | 1977-07-13 | Danfoss As | Control device for igniting and monitoring a flame-fired furnace |
| CA1079577A (en) * | 1978-03-14 | 1980-06-17 | Thomas H. Cooper | Boiler cold start using pulverized coal in ignitor burners |
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| CN212565853U (en) * | 2020-06-02 | 2021-02-19 | 佳木斯大学 | Biomass boiler control system and biomass boiler unit |
| CN112577040A (en) * | 2020-09-25 | 2021-03-30 | 安徽禹王加热炉制造有限公司 | Ignition starting method for fluidized combustion furnace |
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