CN211241664U - Tunnel type coffee bean baking device - Google Patents

Abstract

A tunnel coffee bean roasting apparatus for roasting a plurality of objects to be roasted, comprising: the device comprises a machine body, at least one preheating module, at least one heating module, at least one cooling module, a control panel, at least one conveying module and a plurality of air draft modules; the machine body penetrates through a tunnel, the preheating module blows downwards and generates preheating wind power, the cooling module blows downwards and generates cooling wind power, the air draft module is arranged on the bottom side wall of the tunnel and corresponds to the heating module, air draft is carried out through the air draft module to drive airflow in the tunnel, the heat energy emitted by the heating block forms hot air along with the airflow, and the hot air forms heat backflow in the tunnel; two air curtains are respectively formed by the preheating wind power and the cooling wind power, and the heat energy emitted by the heating module is blocked by the air curtains, so that the dissipation of the heat energy is reduced.

Description

Tunnel type coffee bean baking device

Technical Field

The utility model relates to a cure the device, indicate a tunnel type coffee beans cures device especially.

Background

Coffee is a beverage made of natural plant seeds, has special aroma and mellow mouthfeel, contains caffeine, has the effect of stimulating and refreshing the human body, and is one of the beverages widely popular in the human society.

The quality of coffee drinks is mainly emphasized in the process of roasting coffee beans, so that many manufacturers introduce roasting machines abroad (such as germany, usa, Italian, Spain, Turkey, Japan, Korea, China and the like), and many manufacturers in China also put into research, development and production; however, the roasting barrels adopted by the coffee roasting machines in the market at present mainly adopt metal rolling barrels, the materials are mostly stainless steel and cast iron alloy (the materials refer to international famous brands), and the direct fire type, hot air type, semi-direct fire or semi-hot air heating roasting mode is adopted; however, no matter how the heating and roasting is performed, it is difficult to control the coffee beans in the optimal heated roasting state, and the heating inside and outside is not uniform, which often causes the inside of the coffee beans to be scorched and the coffee bean oil fat not to be uniformly released to show the optimal flavor.

On the other hand, the kinds of coffee beans are various and the production places are different (e.g., coffee beans of the kinds of chlamydia, macrogola, peru, melon demara, nigla, colombia, manthunen, brazil, costa rica, etc.), and the different kinds of coffee beans have different roasting temperatures and show different tastes.

During the roasting process of coffee beans, the residual water in the coffee bean cells is converted into water vapor, but the thickness of the cell walls (not silverskin) of the coffee beans is about 6 microns, so that the coffee beans are thicker than that of common plants and are like a small pressure boiler when being roasted at high temperature, and therefore, the substances in the cells are subjected to non-enzymatic browning reaction, namely Maillard reaction, at high temperature and high pressure.

First explosion: the first burst of the coffee bean during roasting process, generally, when the temperature of the coffee bean reaches 180 ℃ to 200 ℃ during roasting process, the fibrous tissue of the coffee bean begins to harden, so that the pressure of the bean core cannot be smoothly discharged, and the internal pressure rapidly rises. Due to the rapid changes in the temperature, moisture content and pressure of the beans, the chemical reaction rate increases at this stage, and the beans expand more rapidly, resulting in a first burst.

At approximately 170 ℃, the caramelization reaction starts. This causes the carbohydrate to be further broken down. The Maillard reaction gradually slows down. The caramelization reaction darkens the color of the coffee beans and produces a fruity, caramel, roasted nuts, and the like aroma. Both the caramelization reaction and the menide reaction reduce the sweetness of coffee and increase the bitterness of coffee.

And (2) secondary explosion: meaning the second burst during roasting of the coffee beans, typically the coffee beans reach a temperature of 205 to 230 c during roasting. After the second explosion begins, the oil of the beans floats out of the surface, namely the deep baking stage. After the explosion, some components generated start to decompose while generating heat, and gas is generated in the process to make the beans expand continuously. With the expansion of the coffee beans, the cells are destroyed again, followed by a sound, which is called a second explosion.

And (3) dry distillation reaction: the method refers to that solid or organic substances are isolated from air and are dried to be completely carbonized, and the isolated air is used for preventing oxygen from assisting combustion or exploding.

Under the condition of normal baking, the coffee beans cannot be baked to be completely carbonized and combusted, so the deeply baked beans are taken out of the furnace before being combusted, and are baked to enter the middle-deep baking to the deep baking after the second explosion, because the sour taste is lower and is the baking degree which is most acceptable to the general public, in the exquisite coffee popular in Europe and America, the shallow middle-deep baking is taken as the main part, the deep baking of the second explosion tail or the re-baking after the second explosion is rarely carried out, but the baking degree of the second explosion tail is the characteristic of the exquisite coffee, the surface of the beans is glossy, the baking technology is held in place, the beans are not burnt and not bitter, and the sweet choking taste of alcohol and rosin is also similar to the choking fragrance of banana oil, rosin, cedar or nutmeg.

Thus, the aroma of the deep baking can be attributed to the retort reaction. The fragrance of the light roasting and the middle roasting belongs to low and medium molecular weight, but enters the deep roasting world after the second explosion, the carbonization is intensified, the caramelization reaction disappears, but the Maillard reaction continues, the fibers of amino acid and polysaccharide are continuously degraded and polymerized to generate more adhesive compounds with high molecular weight, the explanation of the fragrance is dominated by the Maillard reaction and the dry distillation reaction from the caramel conversion, and the main is the scorched fragrance and the stuffy fragrance and pungent choking.

On the other hand, the roasting degree of coffee beans is classified into light roasting, cinnamon roasting, medium roasting, high roasting, city roasting, deep city roasting, french roasting, and semantic roasting, and the state of coffee beans varies depending on the different roasting degree. Lightly roasted, with the beans roasted to near first popping; baking cinnamon, and baking coffee beans to the middle of the first popping; medium roast, coffee beans roast to the end of the first explosion; high roast, coffee beans roast to the point where wrinkles appear; city roasting, wherein the coffee beans are roasted until the coffee beans are cracked for the second time; deep city roasting, wherein the coffee beans are roasted until the second explosion period is just finished; french roasting, in which coffee beans are roasted until the surface of the coffee beans is black and has a little dark brown color; baking to black state.

The existing coffee roasting equipment uses a metal drum and directly provides heat energy to roast coffee beans, and the dried coffee beans are easy to be roasted at high temperature to lose original bean juice, further destroy fat and oil of the coffee beans and lose the best and most natural flavor; due to the high-temperature direct fire baking, the beans are easy to be burnt, and the grease can be converted into compounds harmful to human bodies when being subjected to high-temperature carbonization, which is also a serious disadvantage of the current baking technology and equipment.

Accordingly, it is one of the subjects of intensive research and improvement in the art to design a device capable of accurately controlling the heating temperature in the roasting device, so that the coffee beans have natural fragrance and original flavor, and have mellow taste without bitterness, scorching or carbonization, thereby teaching real healthy drinks.

Therefore, after observing the above-mentioned shortcomings, the authors of the present application have considered that the coffee bean roasting apparatus still needs to be further improved, and have led to the creation of the present invention.

SUMMERY OF THE UTILITY MODEL

The main objective of the utility model is to provide a tunnel type coffee bean baking device, when waiting to cure the thing and carry to the heating module, see through the convulsions module and carry out convulsions to drive the air current in the tunnel, make the heat energy that radiates out at the heating block can form hot-blastly along with the air current, further make hot-blastly form the hot reflux in the tunnel, so that promote to wait to cure the average of thing and be heated, reduce the probability of singeing, the operating temperature in the control tunnel that can be accurate.

Another objective of the present invention is to provide a tunnel type coffee bean roasting device, which uses a pre-heating module and a cooling module to blow the formed air curtain downwards, so as to reduce the heat energy emitted by the heating module and the loss of heat energy.

In order to achieve the above object, the present invention provides a tunnel type coffee bean roasting apparatus for roasting a plurality of objects to be roasted, the tunnel type coffee bean roasting apparatus comprising: a machine body, wherein the machine body is penetrated with a tunnel which is provided with an input port and an output port; at least one preheating module, which is arranged on the top side wall of the tunnel, blows downwards and generates preheating wind power to preheat the object to be baked passing through the preheating module; the heating module is arranged on the top side wall of the tunnel and is divided into a plurality of heating blocks, each heating block emits heat energy, and the object to be baked passing through the heating module is heated through the heat energy; at least one cooling module, which is arranged on the top side wall of the tunnel and is divided into at least one cooling block, wherein the cooling block blows downwards and generates a cooling wind force, and the object to be baked passing through the cooling module is cooled by the cooling wind force; the control panel is arranged on the outer peripheral wall of the machine body and controls the preheating module, the heating module and the cooling module through the control panel so as to adjust the working temperatures of the preheating module, the heating module and the cooling module in the tunnel; the conveying module is arranged in the tunnel, rotates in the tunnel in a circulating mode, bears the to-be-baked objects, conveys the to-be-baked objects to move from the input port to the output port, and enables the to-be-baked objects to sequentially pass through the preheating module, the heating module and the cooling module for processing; the air draft modules are arranged on the bottom side wall of the tunnel, correspond to the heating modules, and conduct air draft through the air draft modules to drive airflow in the tunnel, so that the heat energy emitted by the heating blocks forms hot air along with the airflow, the hot air passes through the bottom side wall of the tunnel, the two side walls of the tunnel and the top side wall of the tunnel and finally returns to the air draft modules, and the hot air forms heat backflow in the tunnel; wherein, form two wind curtains respectively by this preheating wind-force and this cooling wind-force, see through this wind curtain separation this heating module radiated the heat energy, reduce the loss of heat energy.

Preferably, the baking oven further comprises at least one sieving module, the sieving module is arranged on the top side of the air draft module and is used for sieving a plurality of chippings generated by the object to be baked.

Preferably, the number of the heating blocks is eight, the number of the air draft modules is eight, and the heating blocks correspond to the air draft modules.

Preferably, wherein, still include an at least cooling convulsions module, this cooling convulsions module sets up the bottom surface at this module of sieving, and this cooling convulsions module corresponds this cooling block.

Preferably, the tunnel type air conditioner further comprises eight air supply modules, wherein the air supply modules are arranged on the top side of the heating module, correspond to the heating blocks, and supply air through the air supply modules and drive airflow in the tunnel.

Preferably, the number of the cooling blocks is two, the number of the cooling draft modules is two, and the cooling blocks correspond to the cooling draft modules.

Preferably, the exhaust device further comprises at least one exhaust module disposed on the top side of the housing for exhausting excess exhaust gas.

Preferably, the control panel comprises a temperature detecting member disposed on at least one of the trays, and the temperature detecting member is electrically connected to the control panel.

The utility model provides a tunnel type coffee bean baking device, by air current in the convulsions module convulsions in order to drive this tunnel makes heating block emits heat energy forms this hot-blast along with the air current, and this hot-blast two lateral walls in the end lateral wall in this tunnel, this tunnel and the top lateral wall in this tunnel are got back to again at last air current module makes this hot-blast formation of heat reflux in this tunnel, so that promote treat the average of curing the thing is heated, reduces treat the probability that the thing burns that cures. In addition, the air curtain is used for blocking the heat energy emitted by the heating module, so that the dissipation of the heat energy is reduced, and the working temperature in the tunnel is accurately controlled.

Drawings

Fig. 1 is a perspective view of the tunnel-type coffee bean roasting apparatus of the present invention.

Fig. 2 is a perspective view of the object to be baked in a tray according to the present invention.

Fig. 3 is a schematic cross-sectional view of the tunnel type coffee bean roasting apparatus of the present invention.

Fig. 4 is a schematic top view of the preheating module, the heating module and the cooling module according to the present invention.

Fig. 5 is a schematic diagram of the object to be baked according to the present invention passing through the preheating module.

Fig. 6 is a schematic diagram of the object to be baked passing through the heating module.

Fig. 7 is a schematic view of the object to be baked passing through the cooling module according to the present invention.

Fig. 8 is a schematic diagram of the formation of thermal reflow according to the present invention.

Fig. 9 is a schematic view of the formation of the curtain of the present invention.

Fig. 10 is a temperature curve diagram of the object to be baked according to the sequence of the preheating module, the heating module and the cooling module.

Wherein the reference numerals are as follows:

100 tunnel type coffee bean roasting device

10 machine body

11 tunnel

1101 bottom side wall of tunnel

1102 two sidewalls of tunnel

1103 top side wall of tunnel

111 input port

112 outlet

20 preheating module

21 preheating wind power and air curtain

30 heating module

31a to 31h heating block

311 heat energy

40 Cooling Module

41a, 41b cooling block

411 cooling wind power and air curtain

50 control panel

51 temperature detecting element

60 transport module

70 air draft module

71 Hot air

80 sieving module

90 exhaust module

200 object to be baked

201 debris

300 sieve tray

301 fine pores

Detailed Description

Referring to fig. 1 to 4, fig. 1 is a perspective view of a tunnel type coffee bean roasting device of the present invention, fig. 2 is a perspective view of a to-be-roasted object tray, fig. 3 is a schematic cross-sectional view of the tunnel type coffee bean roasting device of the present invention, and fig. 4 is a schematic top view of a preheating module, a heating module and a cooling module of the present invention. The utility model discloses a tunnel type coffee beans roasting device 100, it is used for roasting a plurality of things 200 of waiting to roast, and this tunnel type coffee beans roasting device 100 contains:

a body 10, the body 10 is disposed through a tunnel 11, the tunnel 11 has an input port 111 and an output port 112.

At least one preheating module 20, the preheating module 20 being disposed on the top wall 1103 of the tunnel 11, the preheating module 20 blowing downward and generating a preheating wind 21, and the object 200 to be baked passing through the preheating module 20 being preheated by the preheating wind 21.

At least one heating module 30, the heating module 30 is disposed on the top wall 1103 of the tunnel 11, the heating module 30 is divided into a plurality of heating blocks 31 a-31 h, each of the heating blocks 31 a-31 h emits a thermal energy 311, and the object 200 to be baked passing through the heating module 30 is heated by the thermal energy 311.

At least one cooling module 40, the cooling module 40 being disposed on the top wall 1103 of the tunnel 11, the cooling module 40 being divided into at least one cooling block 41a, 41b, the cooling block 41a, 41b blowing downward and generating a cooling wind 411, and the object to be baked 200 passing through the cooling module 40 being cooled by the cooling wind 411.

A control panel 50, the control panel 50 is disposed on the outer peripheral wall of the machine body 10, and the control panel 50 controls the preheating module 20, the heating module 30 and the cooling module 40 to adjust the working temperatures of the preheating module 20, the heating module 30 and the cooling module 40 in the tunnel 11. In the present embodiment, please refer to fig. 2, the control panel 50 includes a temperature detecting member 51, the temperature detecting member 51 is disposed on at least one of the sieve trays 300, and the temperature detecting member 51 is electrically connected to the control panel 50.

At least one conveying module 60, the conveying module 60 is disposed in the tunnel 11, the conveying module 60 rotates in the tunnel 11 in a circulating manner, the conveying module 60 carries the object 200 to be baked, and conveys the object 200 to be baked to move from the input port 111 to the output port 112, so that the object passes through the preheating module 20, the heating module 30 and the cooling module 40 in sequence for processing.

It should be further noted that, in a preferred embodiment, the temperature detecting member 51 is selectively attached to an outer periphery of one of the objects to be baked 200 or inserted into one of the objects to be baked 200. The object 200 to be baked is transported through the transporting module 60, sequentially passes through the preheating module 20, the heating module 30 and the cooling module 40, and the actual heating temperature of the object 200 to be baked is detected.

The air draft modules 70 are arranged on the bottom side wall 1101 of the tunnel 11, correspond to the heating modules 30, and perform air draft through the air draft modules 70 to drive the air flow in the tunnel 11, so that the heat energy 311 emitted from the heating blocks 31a to 31h forms a hot air 71 along with the air flow, and the hot air 71 passes through the bottom side wall 1101 of the tunnel 11, the two side walls 1102 of the tunnel 11 and the top side wall 1103 of the tunnel 11, and finally returns to the air draft modules 70, so that the hot air 71 forms a heat reflux in the tunnel 11. In the present embodiment, please refer to fig. 5, the number of the heating blocks 31a to 31h is eight, the number of the ventilator modules 70 is eight, and the heating blocks 31a to 31h correspond to the ventilator modules 70. In another preferred embodiment, the tunnel includes eight blowing modules, the blowing modules are disposed on the top side of the heating module 30, the blowing modules correspond to the heating blocks 31 a-31 h, and blow air through the blowing modules and drive the air flow in the tunnel 11.

Please refer to fig. 9, fig. 9 is a schematic view illustrating the formation of the wind curtain of the present invention. Two air curtains 21, 411 are formed by the pre-heating air 21 and the cooling air 411 respectively, and the heat energy 311 radiated from the heating module 30 is blocked by the air curtains 21, 411, so as to reduce the dissipation of the heat energy 311.

Referring to fig. 1 and 3, the tunnel-type coffee bean roasting apparatus 100 further includes at least one exhaust module 90, the exhaust module 90 is disposed on the top side of the machine body 10, and the exhaust module 90 is used for exhausting the excessive exhaust gas. In the present embodiment, please refer to fig. 3, the exhaust module 90 is connected to the tunnel 11.

As shown in fig. 2, the object 200 to be baked is placed on the screen tray 300, the screen tray 300 is placed on the conveying module 60 for conveying, the screen tray 300 is provided with a plurality of fine holes 301, and the preheating wind 21, the hot wind 71 and the cooling wind 411 directly pass through the screen tray 300 through the arrangement of the fine holes 301. Thereby, the object to be baked 200 passes through the preheating module 20, the heating module 30 and the cooling module 40, which improves the average heating.

With continued reference to fig. 3, at least one sieving module 80 is further included, the sieving module 80 is disposed on the top side of the air draft module 70, and the sieving module 80 is used for sieving a plurality of crumbs 201 generated from the object to be baked 200. In this embodiment, the fine holes 301 of the sieving plate 300 can also be used for sieving the crumbs 201. In another preferred embodiment, the object 200 to be baked is disposed on the conveying module 60, and the conveying module 60 is provided with a plurality of fine holes, so as to achieve the above-mentioned effects.

In a preferred embodiment, not shown, at least one cooling module is provided at the bottom side of the screening module 80, which corresponds to the cooling blocks 41a, 41 b. The number of the cooling blocks 41a and 41b is two, the number of the cooling draft modules is two, and the cooling blocks 41a and 41b correspond to the cooling draft modules.

For further understanding of the structural features, operational features, and intended advantages of the invention, reference will now be made to the use of the invention in conjunction with the accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification:

in the present embodiment, please refer to fig. 2, the object 200 to be roasted is coffee beans, and the crumbs 201 generated by the object 200 to be roasted are silvery skin of the coffee beans.

In the operating state of the present invention in the tunnel 11, please refer to fig. 5, in which fig. 5 is a schematic diagram of the object to be baked passing through the preheating module. After the objects 200 to be baked are placed on the sieve tray 300, the objects pass through the preheating module 20 by the transportation of the transportation module 60, and the preheating module 20 passes through some heat energy 311 dissipated by the heating module 30 and the wind force blown downward by the preheating module 20 to form the preheating wind 21, and the objects 200 to be baked passing through the preheating module 20 are preheated by the preheating wind 21. In this embodiment, the fine holes 301 of the sieving plate 300 and the sieving module 80 primarily sieve substances other than the object to be baked 200.

Referring to fig. 6, fig. 6 is a schematic view of the object to be baked passing through the heating module according to the present invention. Then, the object 200 to be baked passes through the heating module 30, the heating blocks 31a to 31h are matched with the air draft module 70, air draft is performed through the air draft module 70 to drive the air flow in the tunnel 11, so that the heat energy 311 radiated from the heating blocks 31a to 31h forms the hot air 71 along with the air flow, and the object 200 to be baked passing through the heating module 30 is heated through the hot air 71.

In the present embodiment, the heating temperature of the heating blocks 31a to 31h depends on the taste of the coffee beans to be roasted by the user, and the heating temperature is different for different types of coffee beans. For example, the preferred roasting temperature of brazilian coffee beans is between 155 ℃ and 216 ℃, and the thermal energy 311 of the heating blocks 31 a-31 h is adjusted individually, which slowly rises from 155 ℃ to 216 ℃. However, the present invention is not limited thereto, for example, when the user wants to bake the brazilian coffee beans to a deep-baked state, the deep-baked temperature is between 230 ℃ and 235 ℃, and the heat energy 311 of the heating blocks 31a to 31h is adjusted individually, and gradually rises from 155 ℃ to 235 ℃. Accordingly, the temperature of the heat energy 311 in the heating blocks 31a to 31h is adjusted according to the type of coffee beans and the taste of the roasted coffee beans.

The object 200 to be baked is gradually heated by the heating blocks 31a to 31h, and the heating temperature of the heating blocks 31a to 31h is gradually increased, so that the reaction time and temperature of the Maillard reaction, the caramelization reaction and the dry distillation reaction can be stably controlled, and the aroma, taste and color of the object 200 to be baked can be stably controlled according to the requirements of users.

As shown in fig. 6, the crumbs 201 generated by the object 200 to be baked and heated by the heat energy 311 are driven by the hot air 71 to form a heat flow in the tunnel 11, and are sieved through the fine holes 301 of the sieving plate 300 and the sieving module 80.

Referring to fig. 7, fig. 7 is a schematic view of the object to be baked passing through the cooling module according to the present invention. Then, the object 200 to be baked passes through the cooling module 40, the cooling blocks 41a and 41b of the cooling module 40 are blown downward, and the cooling wind 411 is generated, so that the object 200 to be baked passing through the cooling module 40 is cooled by the cooling wind 411. In the present embodiment, the number of the cooling blocks 41a and 41b is two.

In the present invention, when the tunnel 11 forms a thermal reflow state, please refer to fig. 8, in which fig. 8 is a schematic diagram of the formation of the thermal reflow according to the present invention. The heat energy 311 emitted from the heating blocks 31a to 31h is matched, and the air draft module 70 drafts the air current to form the hot air 71. In this embodiment, starting from the ventilator module 70, the hot wind 71 sequentially passes through the bottom sidewall 1101 of the tunnel 11, the two sidewalls 1102 of the tunnel 11 and the top sidewall 1103 of the tunnel 11, and finally returns to the ventilator module 70, so that the hot wind 71 forms a thermal reflux in the tunnel 11.

Referring to fig. 10, fig. 10 is a temperature curve diagram of the object to be baked sequentially passing through the preheating module, the heating module and the cooling module according to the present invention. Firstly, the object to be baked 200 is preheated by the preheating module 20; then, the object to be baked 200 is heated by passing through the heating blocks 31a to 31h of the heating module 30; finally, the object to be baked 200 is cooled by the cooling blocks 41a, 41b of the cooling module 40. In the embodiment, the number of the heating blocks 31a to 31h is eight, and the number of the cooling blocks 41a and 41b is two, but the present invention is not limited thereto, and the number of the heating blocks 31a to 31h and the number of the cooling blocks 41a and 41b are different according to the user's requirement.

The features of the present invention and the expected effects achieved by the same are stated below:

the utility model discloses a tunnel type coffee bean baking device mainly by air current in this tunnel 11 is driven to convulsions module 70, makes heating block 31a ~ 31h emits heat energy 311 forms this hot-blast 71 along with the air current, more makes heating block 31a ~ 31h forms heat reflux in this tunnel 11 to see through the heat reflux in this tunnel 11, make treat that to cure thing 200 can promote average heating, reduce treat that to cure thing 200 burns the probability of scorching.

Therefore, the utility model discloses have following implementation efficiency and technical efficiency:

one of them, the utility model discloses see through the setting of heating block 31a ~ 31h, by heating block 31a ~ 31h is right wait to cure thing 200 heats gradually, heating block 31a ~ 31 h's heating temperature rises gradually, can control the reaction time and the temperature of merna's reaction, caramelization reaction and dry distillation reaction steadily, makes it control according to user's demand wait to cure the fragrance, taste and the color and luster of thing 200.

Secondly, the utility model discloses see through heating block 31a ~ 31h reaches the collocation setting of convulsions module 70, by the hot backward flow that this hot-blast 71 formed in this tunnel 11, prevent wait to cure in the thing 200, the external heating is uneven, or causes to burn the interior not ripe outward, more reduces wait to cure thing 200 probability of burning.

Thirdly, the utility model discloses see through this setting of preheating module and this cooling module 40, form respectively by this preheating wind-force 21 and this cooling wind-force 411 air curtain 21, 411, this heating module 30 of its separation is emitted heat energy 311 reduces heat energy 311's loss, the operating temperature of this heating module 30 in further accurately controlling this tunnel 11.

To sum up, the present invention has its excellent progress in the similar products, and the same structure is not found in the literature before looking over the technical data about the similar structure at home and abroad, so the present invention has the new patent element and the application is proposed according to the law.

However, the foregoing is only a preferred and enabling embodiment of the present invention, and features may be used in combination with each other in the alternative applications without explicit repulsion therebetween. Moreover, the equivalent structural changes of the present invention within the scope of the specification and claims should be considered as included in the scope of the present invention.

Claims (8)

1. A tunnel coffee bean roasting apparatus for roasting a plurality of objects to be roasted, comprising:

a machine body, wherein the machine body is penetrated with a tunnel which is provided with an input port and an output port;

at least one preheating module, which is arranged on the top side wall of the tunnel, blows downwards and generates preheating wind power to preheat the object to be baked passing through the preheating module;

the heating module is arranged on the top side wall of the tunnel and is divided into a plurality of heating blocks, each heating block emits heat energy, and the object to be baked passing through the heating module is heated through the heat energy;

at least one cooling module, which is arranged on the top side wall of the tunnel and is divided into at least one cooling block, wherein the cooling block blows downwards and generates a cooling wind force, and the object to be baked passing through the cooling module is cooled by the cooling wind force;

the control panel is arranged on the outer peripheral wall of the machine body and controls the preheating module, the heating module and the cooling module through the control panel so as to adjust the working temperatures of the preheating module, the heating module and the cooling module in the tunnel;

the conveying module is arranged in the tunnel, rotates in the tunnel in a circulating mode, bears the to-be-baked objects, conveys the to-be-baked objects to move from the input port to the output port, and enables the to-be-baked objects to sequentially pass through the preheating module, the heating module and the cooling module for processing; and

the air draft modules are arranged on the bottom side wall of the tunnel, correspond to the heating modules, and conduct air draft through the air draft modules to drive airflow in the tunnel, so that the heat energy emitted by the heating blocks forms hot air along with the airflow, the hot air passes through the bottom side wall of the tunnel, the two side walls of the tunnel and the top side wall of the tunnel and finally returns to the air draft modules, and the hot air forms heat reflux in the tunnel;

wherein, form two wind curtains respectively by this preheating wind-force and this cooling wind-force, see through this wind curtain separation this heating module radiated the heat energy, reduce the loss of heat energy.

2. The tunnel coffee bean roasting apparatus of claim 1, further comprising at least one screening module disposed on a top side of said drafts module for screening a plurality of debris from said item to be roasted.

3. The tunnel coffee bean roasting apparatus of claim 1, wherein the number of heating blocks is eight, the number of extraction modules is eight, and the heating blocks correspond to the extraction modules.

4. The tunnel-type coffee bean roasting apparatus of claim 2, further comprising at least one cooling draft module, wherein the cooling draft module is arranged at the bottom side of the sieving module, and the cooling draft module corresponds to the cooling block.

5. The tunnel-type coffee bean roasting apparatus of claim 3, further comprising eight air supply modules, wherein the air supply modules are arranged on the top side of the heating module, correspond to the heating blocks, and supply air through the air supply modules and drive air flow in the tunnel.

6. The tunnel coffee bean roasting apparatus of claim 4, wherein the number of cooling blocks is two, the number of cooling draft modules is two, and the cooling blocks correspond to the cooling draft modules.

7. The tunnel coffee bean roasting apparatus of claim 1, further comprising at least one exhaust module disposed on the top side of the housing, the exhaust module configured to exhaust excess exhaust air.

8. The tunnel coffee bean roasting apparatus of claim 1, wherein the control panel comprises a temperature detecting member disposed on at least one of the sifter trays, the temperature detecting member being electrically connected to the control panel.

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