CN2784849Y

CN2784849Y - Electric baking room

Info

Publication number: CN2784849Y
Application number: CNU2003201012060U
Authority: CN
Inventors: 张树堂; 钟志华
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-10-11
Filing date: 2003-10-11
Publication date: 2006-05-31
Anticipated expiration: 2013-10-11

Abstract

The utility model relates to an electric baking room, which is composed of a tank body, blowers, a calorifier, a waste heat recovery chamber of a baking chamber, a dry and wet temperature control unit, etc. The electric baking room is characterized in that motors of the two blowers which are fixed on the tank body are positioned on the upper end of a heating chamber; blades of the blowers are positioned on the lower end of a manual air door and the lower end of an automatic air door; the calorifier is positioned on the front lower part of the blades of the blowers and is fixed on the middle part of the heating chamber; the upper part of the heating chamber is communicated with the upper part of the baking chamber, and the lower part of the heating chamber is communicated with the lower part of the baking chamber via a perforated plate; the top of one end of the baking chamber is provided with a humidity discharge opening and is communicated with the outer side of a tank via a humidity discharge pipeline; the waste heat recovery chamber is arranged above the top of the baking chamber; the automatic air door and the manual air door are positioned on the periphery of the motors of the blowers and are positioned above the blades of the blowers; the opening or the closing of the automatic air door is controlled by an automatic humidity discharge mechanism. The utility model is a novel electrical heating baking room which can automatically control and discharge humidity, can bake tobacco leaves according to set baking process and can enhance the quality of the tobacco leaves.

Description

The electricity barn

Affiliated technical field

The utility model relates to a kind of electrical heating roasting plant that toasts fresh tobacco leaf, especially can the wet electrical heating barn of temperature automatically controlled control.

Background technology

In recent years domestic electrical heating tobacco flue-curing equipment mainly contains " a kind of roasting plant and heating means thereof " (patent No.: ZL99 116559.4) of Henan agricultural university development, and this equipment comprises the cavity is made up of heat insulation wall, is contained in the door on the heat insulation wall and places apparatus for baking, branch wind system and heat pump heating system, the dehumidification system in the cavity and be used to control the controller of heat pump heating system and dehumidification system.And heat pump heating system is by being contained in compressor, the condenser in the cavity and and be contained in the outer evaporimeter of cavity and being connected their communicating pipe and the throttling arrangement on the communicating pipe of being contained in being formed.This roasting plant reaches more than 1: 4 electric heating conversion efficiency, has the baking quality of tobacco height, the advantage of power saving, but complex structure, and cost is higher.

Another kind of electrical heating tobacco flue-curing equipment is one of the applicant development " tobacco first baking machine " (China Patent No.: ZL01 2 76156.7).This equipment partly is made up of casing, blower fan, heating element and temperature and humidity control instrument etc.It is characterized in that being fixed on blower fan on the casing be positioned in the middle of the front end upper top in air channel, the middle part in air channel in the middle of fan blade is positioned at.The lower end in middle air channel links to each other with the bottom of both sides baking vessel.The top of both sides baking vessel is provided with a plurality of weep holes.Shutter is positioned at the back of fan blade, and opening or closing by automatic hydrofuge mechanism's interlock control shutter.This device structure is simple, and cost is low, can temperature automatically controlled control wet, and can improve baking quality of tobacco.But blower fan and heating element place between the baking vessel of both sides, and blower fan to the both sides air-supply, does not divide wind apparatus again simultaneously, thereby exist branch wind irregular, and the temperature difference is bigger in the baking vessel, is unfavorable for further improving baking quality of tobacco, and power consumption is also higher.

Summary of the invention:

For solving the defective of above-mentioned electric baking equipment, the utility model provides a kind of electric barn, and this barn is simple in structure, and cost is low, has overcome " tobacco first baking machine " and has divided wind irregular, and the bigger defective of the temperature difference can improve baking quality of tobacco in the baking vessel, reduces power consumption.

The technical scheme in the invention for solving the technical problem is: electric barn is by two cover blower motor (9) and fan blades (10), three groups of heating elements (11), thermal insulation board (12), heating clamber (13), porous plate (1), baking vessel (7), moisture exhausting port (2), hydrofuge pipeline (4), waste heat recovery chamber (5), electrical control cubicles (15) and digital display dry and wet temp control instrument (16) etc. are partly formed.Be fixed on the top that two blower motors (9) on the casing and fan blade (10) are positioned at heating clamber (13), fan blade (10) is positioned at the below of manual air door (8) and self closing door (14).Heating element (11) is fixed on heating clamber (13) middle part below the fan blade (10), the top of heating clamber (13) is connected by the top of fan blade (10) with baking vessel (7), the bottom of heating clamber (13) communicates with the bottom of baking vessel (7), and evenly divides wind through the porous split-wind plate (1) of baking vessel (7) bottom.Baking vessel (7) front end opens the door.Baking vessel (7) upper top is provided with moisture exhausting port (2) and leads to hydrofuge pipeline (4), the other end of hydrofuge pipeline (4) and casing (6) are interlinked to the outside, and the moisture that produces in the baking vessel in the bake process (7) is discharged outside casing through hydrofuge pipeline (4) by moisture exhausting port (2).Hydrofuge pipeline (4) is positioned at waste heat recovery chamber (5).This barn is provided with manual air door (8) and self closing door (14), and casing (6) adopts the interior folder of composite plate plastic blister lamina membranacea to do insulation material.

During baking tobacco leaves, tobacco leaf hangs in the baking vessel (7), by the air of heating element (11) heating, under driving, blower fan enters baking vessel (7) bottom, after porous split-wind plate (1) evenly divides wind, rise to and hang smoke stratification heating tobacco leaf, promote tobacco leaf to change, the evaporation moisture content in leaves, last, humid air is discharged outside casing through hydrofuge pipeline (4) from moisture exhausting port (2), reaches the purpose that the roasting perfume (or spice) of scalding is dried tobacco leaf.Since digital display dry and wet temp control instrument (16) can according to design temperature open heating element (11) heat or close heating element (11) stop the heating, open self closing door (14) hydrofuge or close self closing door and preserve moisture according to setting humidity, therefore can guarantee by best baking process baking tobacco leaves, improve quality of tobacco.Simultaneously under hydrofuge state not, hot air circulate is utilized, and when discharging moisture, the air of moisture in hydrofuge pipeline (4) heating waste heat recovery chamber (5), the air of this heating is under the effect of fan blade (10), enter again in the baking vessel, waste heat will be fully used, and reach the purpose that reduces power consumption.

Description of drawings

Figure of description has been represented structure of the present utility model and operation principle three-view diagram, and Fig. 1 is a front view, and Fig. 2 is a left view, and Fig. 3 is a vertical view.

Among the figure → arrow shown in hot air circulation flow direction in the case.Arrow

Be depicted as the direction of air inlet (3) preheating after heat wind flow.

Among the figure: 1. porous plate, 2. moisture exhausting port, 3. air inlet, 4. hydrofuge pipeline, 5. waste heat recovery chamber, 6. casing, 7. baking vessel, 8. manually air door, 9. blower motor, 10. fan blade, 11. heating elements, 12. thermal insulation boards, 13. heating clamber, 14. self closing doors, 15. electrical control cubicles, 16. dry and wet temp control instrument, 17. sensors, 18. circulation air ports.

The specific embodiment

Further specify the operation principle of the present utility model and the course of work below in conjunction with Figure of description.

Among Fig. 1, ripe fresh tobacco leaf to be baked, the cigarette pole that adopts the tobacco grower to use always is compiled cigarette and is packed on the shelf in the baking vessel (7), also can adopt special-purpose cigarette to clamp cigarette.Fill in the baking vessel (7) treat roasting fresh tobacco leaf after, close door sealing, close manual air door (8), connect power supply, blower fan (9) (10) is started working, air begins flow circuit in the case.Go up at digital display dry and wet temp control instrument (16) simultaneously and set required humiture.Generally be to begin baking with 30 ℃-32 ℃ of low temperature during start, the humidity that require this moment is higher, the door that requires not blow in, hydrofuge not.Along with the increase of stoving time and the variation of tobacco leaf, improve temperature gradually, get rid of moisture.Toasted 15～20 hours, after the flavescence of tobacco leaf blade tip, requiring dry-bulb temperature is 38 ℃, and wet-bulb temperature is 36 ℃, presses 38 ℃ of key assignments dry-bulb temperatures, 36 ℃ of wet-bulb temperature this moment.Digital display dry and wet temp control instrument (16) can accurately show the actual humiture of the interior tobacco leaf of baking vessel (7) in changing by sensor (17).When the dry-bulb temperature of setting was 38 ℃, heating element (11) beginning was controlled opening or closing of heating element (11) circuit according to the signal of sensor (17) by the control circuit of digital display dry and wet temp control instrument (16), made the interior hot blast constant temperature of baking vessel (7) in 38 ℃.Under the effect of the fan blade (10) that rotates at a high speed, air-flow in the heating clamber (13) forms malleation, and the heat that heating element (11) the is sent hot blast that forms certain pressure from the bottom of heating clamber (13) blow to baking vessel (7) the bottom (as arrow → shown in), and it is interior by the bottom of flue-cured tobacco through the even baking vessel (7) that all hot blast blowed to of the porous plate (1) of baking vessel (7) bottom, there is the hot blast of certain pressure will upwards pass the top that arrives baking vessel (7) from the slit of tobacco leaf, this moment baking vessel (7) top hot blast through circulation air port (18) under the effect of fan blade (10), form negative pressure and be attracted to the fan blade (10) of rotation at a high speed, be blown into heating clamber (13) again and form malleation circulation heating.

Fresh tobacco leaf in the baking vessel (7) begins the dehydration variation because of being heated, and produces certain humidity.When the humidity (wet-bulb temperature) in the baking vessel (7) surpasses the given or damp-warm syndrome that shows of digital display dry and wet temp control instrument (16), by the sensor of placing in the baking vessel (7) (17) the damp-warm syndrome signal is reached digital display dry and wet temp control instrument (16), and connect the power supply of automatic hydrofuge mechanism by the on-off circuit in this controller, make it open self closing door (14), at this moment, the fresh air that enters by air inlet (3), after the preheating of waste heat recovery chamber (5), under the effect that fan blade (10) rotates at a high speed, be sucked in the case, and heat (as arrow (13) directly to enter heating clamber

Shown in).The interior blast of whole case this moment becomes malleation, and can will have the moisture of uniform temperature to discharge outside case through hydrofuge pipeline (4) from moisture exhausting port (2) in the baking vessel (7) rapidly automatically.When the sensor (17) in the baking vessel (7) detect damp-warm syndrome be lower than during the given or damp-warm syndrome that shows, signal reached digital display dry and wet temp control instrument (16) and by the automatic hydrofuge of on-off circuit conversion mechanism, self closing door (14) is closed, because air door is closed, flatten weighing apparatus with the case exogenous wind in the case, hot blast in the baking vessel (7) can not efflux, hot blast in the baking vessel (7) carries out heat cycles through heating clamber (13) through circulation air port (18) under the effect of fan blade (10), make the hot blast humidity in the baking vessel (7) keep constant, thereby reach automatic hydrofuge and heat automatically, constant humidity.

The utility model adopts high accuracy and highly sensitive digital display dry and wet temp control instrument, and in the whole bake process, as long as set the humiture value according to the actual conditions adjustment of flue-cured tobacco in the case, just humiture in the automatic control box is accurately finished whole bake process.Meet that the tobacco grower limit is roasting, the limit is seen, the baking custom that heats up in the limit has simple to operately, controls accurate characteristics.

Claims

1, a kind of electric barn, form by casing (6), digital display dry and wet temp control instrument (16), blower fan (9) motor, fan blade (10), heating element (11), porous plate (1), hydrofuge pipeline (4), it is characterized in that: the blower motor (9) that is fixed on the casing (6) is positioned on the top of heating clamber (13), fan blade (10) is positioned at the lower end of self closing door (14) and manual air door (8), and the top of the upper end of fan blade (10) and baking vessel (7) interlinks; The lower surface of fan blade (10) is to heating clamber (13), and heating element (11) is fixed on the middle part of heating clamber (13), and the bottom of the bottom of heating clamber (13) and baking vessel (7) interlinks with it through porous plate (1); Baking vessel (7) over top has moisture exhausting port (2), interlinks through hydrofuge pipeline (4) and casing (6) outside; Manually air door (8) and self closing door (14) be positioned at blower motor (9) around, and control automatically by automatic hydrofuge mechanism and digital display dry and wet temp control instrument (16) and to open or close.

2, electric barn according to claim 1, the top, top that it is characterized in that baking vessel (7) is provided with waste heat recovery chamber (5), hydrofuge pipeline (4) is positioned at waste heat recovery chamber (5), one end of waste heat recovery chamber (5) is provided with air inlet (3), and the other end is with manually air door (8) and self closing door (14) interlink.