CN219515220U

CN219515220U - High-energy-efficiency coffee roasting machine capable of fully recycling heat energy through top air inlet

Info

Publication number: CN219515220U
Application number: CN202223457127.5U
Authority: CN
Inventors: 周南
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-12-23
Filing date: 2022-12-23
Publication date: 2023-08-15
Anticipated expiration: 2032-12-23

Abstract

The utility model discloses a high-energy-efficiency coffee roasting machine with top air inlet for fully recovering heat energy, and particularly relates to the technical field of coffee machines. The top air inlet fully recovers the high-energy-efficiency coffee roasting machine of heat energy, the air inlet and the induced draft fan guide air flow to pass through the inner pot from top to bottom, the electric heating pipe and the guide vane enable the air flow to be fully and uniformly mixed and heated before reaching the inner pot, the high-temperature air flow provides a sufficient convection heat source for the coffee roasting process, so that the coffee beans are roasted more uniformly, and the air flow guided by the induced draft fan takes away smoke generated in the roasting process.

Description

High-energy-efficiency coffee roasting machine capable of fully recycling heat energy through top air inlet

Technical Field

The utility model relates to the technical field of coffee machines, in particular to a high-energy-efficiency coffee roasting machine capable of fully recycling heat energy through top air inlet.

Background

Coffee is a beverage made of roasted and ground coffee beans, is one of the main beverages popular in the world, and along with the development of the times, the traditional manual caffeine is made for a long time, so that people who pursue a low coffee flavor are usually used with a coffee machine, and the electronic technology is applied to the coffee machine by the coffee machine, so that the automatic control of the whole brewing process of grinding, pressing, filling, brewing, removing residues and the like is realized.

The existing coffee roasting machine is characterized in that the heating device is arranged at the bottom of the inner pot, the air inlet is arranged at the bottom, the air outlet is arranged at the upper part of the inner pot, hot air enters from the bottom heater, enters into the inner pot from the rear part of the inner pot after being heated, heats coffee beans in the inner pot, is discharged from the upper part of the front part of the inner pot, and takes away silver skin and flue gas generated in the roasting process, and a silver skin filtering device is arranged at the outlet of the hot air and is used for filtering silver skin. The disadvantage of this scheme lies in that need set up silver skin filter equipment alone, and the cost is too high, and the size of curer is too big, and the heat energy in the hot air of exhaust is not fully recycled simultaneously, and the energy efficiency is not high.

And no separate air inlet is arranged, and an air outlet is arranged at the top of the inner pot, so that the smoke generated in the baking process is discharged from the top. The inner boiler wall is perforated or the inner boiler is designed into a cage shape. The silver skin is sieved and dropped in the rotation process by using the design of the holes and the cage shape. A silver skin drawer is arranged at the bottom of the inner pot and is used for collecting silver skin. The scheme has the defects that the convection heat transfer of high-temperature air flow is not used as a main heat source, the heat radiation and the contact heat transfer are mainly relied on, the efficiency of heating the coffee beans is not higher than that of the convection heat transfer, and 360-degree omnibearing heating can be realized unlike the convection heat transfer. Meanwhile, only the smoke is discharged by utilizing the natural rising principle of the smoke, the blowing of the smoke is enhanced by no active design of air flow, and unpleasant smoke smell is easy to appear in the baked products.

Because coffee beans can expand in the baking process, the scheme of designing the inner pot into a cage shape is that the coffee beans are easy to be clamped between steel wires of the furnace wall in the baking process, and the clamped coffee beans need to be cleaned by frequently disassembling the cage-shaped inner pot. The way the inner boiler wall is perforated is used for limiting the aperture, the screening of the silver skins is not efficient, and a lot of silver skins remain in the roasted coffee.

Both designs do not utilize the waste heat of the waste gas, and therefore, the energy efficiency is low, and based on the energy efficiency, the high-energy-efficiency coffee roasting machine with the top air inlet fully recycling the heat energy is provided.

Disclosure of Invention

The utility model mainly aims to provide a high-energy-efficiency coffee roasting machine with top air inlet for fully recovering heat energy, which can effectively solve the problems in the background technology.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a high-energy-efficiency coffee roasting machine of heat energy is fully retrieved in top admitting air, includes furnace casing and control system, control system fixed mounting is on the inside diapire of furnace casing, the feed inlet has been seted up at the upper right corner of furnace casing, the inner wall of furnace casing just is located feed inlet department and rotates to be connected with the feed gate, the inner wall fixed mounting of furnace casing has the guide plate, the inner wall of furnace casing just is located the below of guide plate and has seted up interior stove, fixed mounting has the motor in the back of furnace casing.

Preferably, parallel grooves are formed in the inner portion of the inner furnace, a temperature sensor is fixedly arranged on the inner wall of the inner furnace, and two groups of stirring sheets are arranged in the inner portion of the inner furnace.

Preferably, a bearing is arranged between the inner furnace and the motor, a heating pipe is fixedly arranged at the back of the inner furnace and close to the top, a heat insulation layer is arranged at the back and the periphery of the inner furnace, a gap is reserved between the hearth shell and the heat insulation layer, and the gap is used as a front channel for air to enter an air inlet at the top of the inner furnace.

Preferably, the below intercommunication of interior stove has the steam outlet pipe, the one end and the draught fan fixed connection of interior stove are kept away from to the hot air flow outlet pipe, the hot air flow outlet has been seted up to junction between furnace casing and the draught fan, air inlet fan has been seted up to the left side of furnace casing and the below that is located the hot air flow outlet, the inside diapire of furnace casing and the right-hand fixed mounting who is located control system have cooling fan, cooling fan's top is equipped with ejection of compact cooling disk.

Preferably, the inside of furnace casing and the below sliding connection who is located interior stove have the silver skin drawer, the silver skin drawer can be followed in the furnace casing and taken out, the drawer grid has been seted up on the silver skin drawer, be equipped with the discharge gate between interior stove and the silver skin drawer, the drawer grid is used for guiding the silver skin and evenly drops, and the drawer grid is used for reflecting the heat radiation of heating pipe simultaneously, promotes the thermal efficiency of complete machine, shelters from the silver skin simultaneously, avoids the heating pipe to burn silver skin.

Preferably, the right side of furnace casing is provided with the ejection of compact door, the ejection of compact guide slot has been seted up to the right side of furnace casing and be located ejection of compact door and silver skin drawer department, the right side fixed mounting of interior stove has the sample connection, air inlet has been seted up between furnace casing and the guide plate.

Preferably, the stirring sheets in one group are provided with three stirring sheets, the stirring sheets are distributed annularly about the center of the inner furnace, two groups of stirring sheets are arranged in a cross manner, coffee beans are arranged in the inner furnace, the stirring sheets are thrown up by the stirring sheets in the process of rotating the inner furnace, so that the coffee beans roll, are heated uniformly, air convection is generated in the process of stirring and mixing, the convection heat transfer efficiency is improved, silver skin generated in the process of baking the coffee beans can be fully shaken off in the process of stirring and mixing, the coffee beans in the inner furnace are directly heated by heat radiation of a heating pipe through parallel grooves, the silver skin is separated in the rotating process by the parallel grooves, the silver skin falls into a silver skin drawer below the inner pot, the coffee beans expand in the baking process, and the parallel grooves and the bottom stirring sheets are parallel to avoid the situation that the coffee beans expand and are blocked at the bottom stirring sheets and the parallel grooves in the baking process.

Preferably, the heating pipe penetrates through the heat insulation layer and extends to the interior of the inner furnace, the heat insulation layer is fixedly connected with the stirring sheet, the induced draft fan guides the flowing direction of the air flow, the air flow flows from the air inlet at the top to the hot air outflow opening, the air flow passes through the inner furnace in the process, heat energy is transferred to coffee beans in the inner furnace in a convection heat transfer mode, and silver skin is blown down into a silver skin drawer at the bottom of the inner pot through parallel grooves in the downward flowing process.

Preferably, the hot air in the inner furnace enters from the guide plate, flows out from the hot air outlet pipe and finally flows out from the hearth shell through the hot air outlet, the induced draft fan guides the air flow to flow downwards from top to bottom, in the process, the induced draft fan blows through the heating pipe under the action of the guide plate, so that the newly-entered cold air and the heated hot air are fully mixed, the air entering the hearth shell is uniformly and fully heated, the temperature is fully raised, and a sufficient convection heat source is provided for the hearth shell.

Compared with the prior art, the utility model has the following beneficial effects:

1. this top is admitted air the high energy efficiency coffee roasting machine of fully retrieving heat energy, and the waste heat of make full use of waste gas preheats the air that gets into furnace, promotes the energy efficiency, and the air current that admits air passes the clearance between heat preservation and the fuselage shell, is the shell cooling in preheating.

2. The design of the top air inlet and the bottom induced draft fan guides the airflow to regularly pass through the inner pot from top to bottom, the electric heating pipe and the guide vane at the top are designed to ensure that the airflow is sufficiently and uniformly mixed and heated before reaching the inner pot, and the high-temperature airflow provides a sufficient convection heat source for the coffee roasting process, so that the coffee beans are roasted more uniformly, and the regularly flowing airflow guided by the induced draft fan can effectively take away the smoke generated in the roasting process to avoid unpleasant smoke smell remained in the finished product.

3. This high-energy-efficiency coffee roasting machine that top admitted air fully retrieves heat energy combines the effect of gravity from last down flow can fully drive the silver skin that produces in the roasting process and drop to the silver skin drawer of below, avoids silver skin in the finished product to remain, and the fluting that sets up in the interior pot parallel with the bottom stirring piece can avoid coffee beans to block, and the groove of long length bar more is favorable to flaky silver skin to pass through.

4. The high-energy-efficiency coffee roasting machine with the top air inlet fully recycling heat energy is higher in strength of a net-shaped supporting structure formed by a regular slotting structure, is not easy to deform and damage in long-term use, and the inclined inward discharging port guide groove can guide roasted materials to fall into the cooling disc inwards, so that the cooling disc can be arranged at the bottom of a roasting bin, and the equipment size is reduced.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of the furnace housing structure of the present utility model;

FIG. 3 is a schematic view of the structure of the discharge door of the present utility model;

FIG. 4 is a schematic view of the structure of the feed gate of the present utility model;

FIG. 5 is a schematic view of the structure of the stirring blade of the present utility model;

FIG. 6 is a schematic view of an air inlet structure of the present utility model;

fig. 7 is a schematic view of an air intake fan according to the present utility model.

In the figure: 1. a furnace housing; 2. a feed inlet; 3. a feed gate; 4. a deflector; 5. an inner furnace; 6. parallel slotting; 7. a temperature sensor; 8. stirring sheets; 9. a motor; 10. a bearing; 11. heating pipes; 12. a heat insulation layer; 13. a hot gas outflow pipe; 14. an induced draft fan; 15. a hot gas outflow port; 16. an air intake fan; 17. a control system; 18. a cooling fan; 19. discharging cooling disc; 20. a silver skin drawer; 21. a drawer grille; 22. a discharge port; 23. a discharge guide groove; 24. a discharge door; 25. a sampling port; 26. an air inlet.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

Example 1

As shown in fig. 1-6, a high-energy-efficiency coffee roasting machine with fully recovered heat energy by top air intake comprises a hearth shell 1 and a control system 17, wherein the control system 17 is fixedly installed on the inner bottom wall of the hearth shell 1, a feed inlet 2 is formed in the corner of the upper right side of the hearth shell 1, the inner wall of the hearth shell 1 is positioned at the feed inlet 2 and is rotationally connected with a feed door 3, a guide plate 4 is fixedly installed on the inner wall of the hearth shell 1, an inner furnace 5 is arranged below the guide plate 4 on the inner wall of the hearth shell 1, and a motor 9 is fixedly installed in the back of the hearth shell 1.

Parallel grooves 6 are formed in the inner furnace 5, a temperature sensor 7 is fixedly mounted on the inner wall of the inner furnace 5, two groups of stirring sheets 8 are arranged in the inner furnace 5, three stirring sheets 8 in one group are annularly distributed in the center of the inner furnace 5, the two groups of stirring sheets 8 are alternately arranged, coffee beans are arranged in the inner furnace 5, and the stirring sheets 8 throw up the coffee beans in the process of following the rotation of the inner furnace 5.

The bearing 10 is arranged between the inner furnace 5 and the motor 9, the heating pipe 11 is fixedly arranged at the back part of the inner furnace 5 and near the top part, the heat insulation layer 12 is arranged at the back part and around the inner furnace 5, a gap is reserved between the hearth shell 1 and the heat insulation layer 12 and is used as a preposed channel for air to enter the air inlet at the top part of the inner furnace 5, the heat radiation of the heating pipe 11 directly heats coffee beans in the inner furnace 5 through the parallel grooves 6, the coffee beans expand in the baking process, the parallel grooves 6 are parallel to the bottom stirring sheets 8, and the situation that the coffee beans are clamped at the bottom stirring sheets 8 and the parallel grooves 6 after expanding in the baking process is avoided.

The lower part of the inner furnace 5 is communicated with a hot air outlet pipe 13, one end of the hot air outlet pipe 13, which is far away from the inner furnace 5, is fixedly connected with an induced draft fan 14, a hot air outlet 15 is formed at the joint between the hearth shell 1 and the induced draft fan 14, an air inlet fan 16 is formed at the left side of the hearth shell 1 and below the hot air outlet 15, a cooling fan 18 is fixedly mounted at the right side of the bottom wall of the hearth shell 1 and located on a control system 17, and a discharging cooling disc 19 is arranged above the cooling fan 18.

The heating pipe 11 penetrates the heat insulation layer 12 and extends to the interior of the inner furnace 5, the heat insulation layer 12 is fixedly connected with the stirring sheet 8, the induced draft fan 14 guides the flowing direction of air flow, the air flow flows from the air inlet at the top to the hot air outlet, the air flow passes through the inner furnace 5 in the process, and heat energy is transferred to coffee beans in the inner furnace 5 in a convection heat transfer mode.

The hot air in the inner furnace 5 enters from the guide plate 4, flows out from the hot air outlet pipe 13, finally flows out from the hearth shell 1 through the hot air outlet 15, the induced draft fan 14 guides the air flow to flow downwards from top to bottom, in the process, the induced draft fan 14 blows through the heating pipe 11 under the action of the guide plate 4, the newly-entered cold air and the heated hot air are fully mixed, the air entering the hearth shell 1 is uniformly and fully heated, the temperature is fully raised, and a sufficient convection heat source is provided for the hearth shell 1.

In this embodiment, the user adds the coffee beans in the interior stove 5 from feed inlet 2, starts the coffee machine afterwards, and motor 9 drives interior stove 5 and rotates, and the inside stirring piece 8 of interior stove 5 contacts with the coffee beans for the coffee beans roll the motion, and is heated evenly, and the process of stirring and mixing produces air convection simultaneously, promotes convection heat transfer's efficiency, and the in-process of stirring and mixing can also fully shake the silver skin that produces in the coffee beans are baked, and the parallel fluting 6 in-process of rotation separation silver skin of cooperation.

When the stirring sheet 8 is used for stir-frying coffee beans, the air inlet fan 16 rotates to introduce air into the hearth, and the induced draft fan 14 is matched to rotate to guide air flow, the air flows from the position of the air inlet fan 16 to the upper part of the inner furnace 5, then flows into the inner furnace 5 and finally enters the hot air flow outlet pipe 13 to form a complete flow direction, meanwhile, cold air flow of inlet air forms an air curtain between the control system 17 and the induced draft fan 14, high temperature of the induced draft fan 14 is isolated, heat of the induced draft fan is dissipated, and meanwhile, heat energy of the induced draft fan 14 is absorbed to preheat air entering the hearth shell 1.

The air flow flows from top to bottom from the inner furnace 5, in the process, the air flow blows through the heating pipe 11 under the action of the guide plate 4, the physical property of rising hot air is utilized, the newly-entered cold air is fully mixed with the heated hot air under the action of the induced draft fan 14, the air entering the hearth shell 1 is uniformly and fully heated, the temperature is fully raised, a sufficient convection heat source is provided for the hearth shell 1, the air entering the hearth shell 1 is fully preheated by the waste heat of waste gas, and the energy efficiency is improved.

And the heating pipe 11 is arranged at the back of the inner furnace 5 and near the top, thereby avoiding that silver skin falling off in the baking process is burnt on the electric heating pipe, avoiding smoke and unpleasant burnt smell generated thereby and affecting the service life of the electric heating pipe.

Example two

As shown in fig. 3-7, a silver skin drawer 20 is slidably connected to the inside of the hearth housing 1 and below the inner furnace 5, the silver skin drawer 20 can be pulled out from the hearth housing 1, a drawer grille 21 is provided on the silver skin drawer 20, the drawer grille 21 is used for guiding silver skin to drop uniformly, and a discharge port 22 is provided between the inner furnace 5 and the silver skin drawer 20.

The right side of furnace casing 1 is provided with ejection of compact door 24, opens ejection of compact door 24 after the completion of toasting, and the coffee beans fall to the ejection of compact cooling disk 19 of below from ejection of compact door 24 in, at the outside drawer grid 21 of ejection of compact door 24 for guide coffee beans drop to ejection of compact cooling disk 19 in, avoid spilling, furnace casing 1's right side just is located ejection of compact door 24 and silver skin drawer 20 department and has been seted up ejection of compact guide slot 23, and the right side fixed mounting of interior stove 5 has sampling port 25, has seted up air inlet 26 between furnace casing 1 and the guide plate 4.

In this embodiment, the drawer grille 21 is arranged above the silver skin drawer 20 and is used for guiding the silver skin to drop uniformly, and meanwhile, the drawer grille 21 is used for reflecting the heat radiation of the heating pipe 11, so that the heat efficiency of the whole machine is improved, the silver skin is shielded, the heating pipe 11 is prevented from burning the silver skin, the silver skin is separated in the rotating process by the parallel slotting 6, and the silver skin is blown into the silver skin drawer 20 at the bottom of the inner pot through the parallel slotting 6 in the downward airflow flowing process.

The user can observe the state of coffee beans through the sampling opening 25 in the roasting process, and after roasting is finished, the discharging door 24 is opened, and the coffee beans fall into the lower discharging cooling plate 19 from the discharging door 24, and the drawer grille 21 can be used as a handle of the discharging cooling plate 19.

Finally, after the coffee beans fall to the discharge cooling disc 19, the cooling fan 18 guides the airflow outside the machine body to pass through the coffee beans for cooling in an air draft mode.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a high energy efficiency coffee roasting machine of heat energy is fully retrieved in top inlet air, includes furnace casing (1) and control system (17), control system (17) fixed mounting is on the inside diapire of furnace casing (1), its characterized in that: feed inlet (2) have been seted up in upper right corner of furnace casing (1), the inner wall of furnace casing (1) just is located feed inlet (2) department and rotates and be connected with feed gate (3), the inner wall fixed mounting of furnace casing (1) has guide plate (4), furnace (5) have been seted up to the inner wall of furnace casing (1) and the below that is located guide plate (4), fixed mounting has motor (9) in the back of furnace casing (1).

2. A top intake fully thermal energy recovery high energy efficiency coffee roasting machine according to claim 1, characterised in that: parallel grooves (6) are formed in the inner portion of the inner furnace (5), a temperature sensor (7) is fixedly arranged on the inner wall of the inner furnace (5), and two groups of stirring sheets (8) are arranged in the inner portion of the inner furnace (5).

3. A top intake fully thermal energy recovery high energy efficiency coffee roasting machine according to claim 1, characterised in that: a bearing (10) is arranged between the inner furnace (5) and the motor (9), a heating pipe (11) is fixedly arranged at the back of the inner furnace (5) and close to the top, and a heat insulation layer (12) is arranged at the back and around the inner furnace (5).

4. A top intake fully thermal energy recovery high energy efficiency coffee roasting machine according to claim 1, characterised in that: the utility model discloses a furnace, including furnace shell (1), draught fan (14), hot air exit (15) have been seted up to the below intercommunication of interior furnace (5), the one end and draught fan (14) fixed connection of interior furnace (5) are kept away from to hot air exit (13), junction between furnace shell (1) and draught fan (14) has seted up hot air exit (15), inlet fan (16) have been seted up in the left side of furnace shell (1) and the below that is located hot air exit (15), the inside diapire of furnace shell (1) just is located right fixed mounting of control system (17) has cooling fan (18), the top of cooling fan (18) is equipped with ejection of compact cooling disk (19).

5. A top intake fully thermal energy recovery high energy efficiency coffee roasting machine according to claim 1, characterised in that: the utility model discloses a furnace, including furnace casing (1), furnace, silver skin drawer (20) are located in the inside of furnace casing (1) and the below sliding connection of furnace (5), silver skin drawer (20) can follow in furnace casing (1) and take out, drawer grid (21) have been seted up on silver skin drawer (20), be equipped with discharge gate (22) between interior furnace (5) and silver skin drawer (20).

6. A top intake fully thermal energy recovery high energy efficiency coffee roasting machine according to claim 1, characterised in that: the utility model discloses a furnace, including furnace casing (1), silver skin drawer (20), discharge gate (24) are provided with on the right side of furnace casing (1), discharge guide slot (23) have been seted up on the right side of furnace casing (1) and in discharge gate (24) and silver skin drawer (20), the right side fixed mounting of interior stove (5) has sampling port (25), air inlet (26) have been seted up between furnace casing (1) and guide plate (4).

7. A top intake fully thermal energy recovery high energy efficiency coffee roasting machine according to claim 2, characterised in that: the stirring sheets (8) in one group are three, and are distributed annularly about the center of the inner furnace (5), the stirring sheets (8) in two groups are arranged in a cross manner, the parallel grooves (6) are parallel to the stirring sheets (8), and coffee beans are arranged in the inner furnace (5).

8. A top intake fully thermal energy recovery high energy efficiency coffee roasting machine according to claim 3, wherein: the heating pipe (11) penetrates through the heat insulation layer (12) and extends to the inside of the inner furnace (5), and the heat insulation layer (12) is fixedly connected with the stirring sheet (8).

9. A top intake fully thermal energy recovery high energy efficiency coffee roasting machine as claimed in claim 4, wherein: the hot air in the inner furnace (5) enters from the guide plate (4), flows out from the hot air outlet pipe (13), and finally flows out from the hearth shell (1) through the hot air outlet (15).