CN216165058U

CN216165058U - Smokeless coffee roaster

Info

Publication number: CN216165058U
Application number: CN202122510341.1U
Authority: CN
Inventors: 田天
Original assignee: Wangli Coffee Shanghai Co ltd
Current assignee: Wangli Coffee Shanghai Co ltd
Priority date: 2021-10-19
Filing date: 2021-10-19
Publication date: 2022-04-05
Anticipated expiration: 2031-10-19

Abstract

The utility model discloses a smokeless coffee roasting machine which comprises a roasting machine body, wherein the roasting machine body comprises a funnel, a roasting chamber, a circulating blower, a cyclone separator, a control device and a cooling disc; the hopper and the circulating blower are respectively arranged on the baking chamber, and the cyclone separator is arranged on the circulating blower. The utility model can remove smoke and particle impurities when roasting coffee beans, not only ensures the original flavor of the coffee beans, but also basically realizes the smokeless roasting processing of the coffee beans, conforms to the pursuit of modern green production, and is worthy of popularization and application.

Description

Smokeless coffee roaster

Technical Field

The utility model relates to the technical field of roasting and processing of coffee beans, in particular to a smokeless coffee roasting machine.

Background

The existing coffee roasting machine equipment used in the market rarely has the function that roasted beans, smoke and any air particulate matters are classified, discharged, decomposed and dispersed through incineration, bran and impurities in the coffee beans are distinguished and separated, and the roasted beans are collected in a box hopper.

The prior coffee roasting equipment has no functions of purifying and removing smoke and smoking and removing fog, and can generate a large amount of smoke and has no ventilation in the production process.

The person skilled in the art is dedicated to solving the above technical drawbacks.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned drawbacks of the prior art, a technical object of the present invention is to solve the problems mentioned in the above-mentioned background art.

In order to achieve the technical purpose, the utility model provides a smokeless coffee roasting machine which comprises a roasting machine body, wherein the roasting machine body comprises a funnel, a roasting chamber, a circulating blower, a cyclone separator, a control device and a cooling disc;

the hopper and the circulating blower are respectively arranged on the baking chamber, the cyclone separator is arranged on the circulating blower, the control device is arranged on one side of the baking machine body, and the cooling disc is arranged at the bottom of the baking chamber;

the air conditioner comprises a cyclone separator, and is characterized in that an outflow port of the cyclone separator is provided with a first pipeline used for exhausting air in a baking chamber, an incineration pipe is arranged in the cyclone separator, screening blades used for screening coffee beans are arranged in the baking chamber, the baking chamber is communicated with a circulating blower through a second pipeline, the circulating blower is communicated with an inflow port of the cyclone separator, a sealing port and a baffle are arranged at the communicating position of the cyclone separator and the circulating blower, the bottom of the cyclone separator is conical, a burner is arranged at the bottom end of the cyclone separator, the bottom end of the cyclone separator is communicated with a hopper, an exhaust valve is arranged in the first pipeline, and a valve is arranged at the outer end of the burner.

Preferably, the control device is a computer having a touch screen display.

Preferably, the gas burner further comprises a first controller for controlling the height of the burner and a second controller for controlling the valve.

Preferably, a chimney is arranged at the top end of the incineration pipe.

Preferably, the cyclone separator is provided with a directional main shaft at the position of the outflow port, the exhaust valve is rotatably connected with the directional main shaft, and the directional main shaft is fixedly connected with the cylinder through a crankshaft and a connecting rod.

Preferably, the circulation blower, the cyclone separator, the first controller, the second controller and the cylinder are electrically connected to the control device, respectively.

The utility model has the beneficial effects that:

due to the design, smoke and particle impurities can be removed when the coffee beans are roasted, the original flavor of the coffee beans is ensured, the smokeless roasting processing of the coffee beans is basically realized, the pursuit of modern green production is met, and the method is worthy of popularization and application.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic plan view of the present invention;

FIG. 3 is a schematic view of the working state of the present invention;

FIG. 4 is a schematic view of the working state of the present invention;

FIG. 5 is a schematic view of the construction of a first conduit portion according to the present invention;

FIG. 6 is a block flow diagram of the present invention.

In the figure: 10 curer body, 12 hopper, 14 baking chamber, 16 circulating blower, 18 cyclone separator, 22 first pipe, 24 control device, 26 cooling disc, 28 sieving blade, 30 second pipe, 32 inflow port, 34 sealing port, 36 baffle, 38 airflow rotation direction, 40 separator bottom, 42 burner, 44 bottom end part, 46 upper chamber, 48 outflow port, 50 hopper, 52 exhaust valve, 56 process airflow, 58 first controller, 60 second controller, 62 chimney, 64 valve, 70 airflow reflux, 72 directional main shaft, 74 crankshaft, 76 cylinder, 78 connecting rod.

Detailed Description

The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.

Example (b):

as shown in fig. 1-5, a smokeless coffee roaster includes a roaster body 10, the roaster body 10 including a hopper 12, a roasting chamber 14, a circulation blower 16, a cyclone 18, a control device 24, and a cooling pan 26;

the hopper 12 and the circulating blower 16 are respectively arranged on the roasting chamber 14, the cyclone separator 18 is arranged on the circulating blower 16, the control device 24 is arranged on one side of the roasting machine body 10, and the cooling disc 26 is arranged at the bottom of the roasting chamber 14;

the outflow port 48 of the cyclone separator 18 is provided with a first pipeline 22 for exhausting air from the roasting chamber 14, the inside of the cyclone separator 18 is provided with an incineration pipe 20, the inside of the roasting chamber 14 is provided with a sieving blade 28 for sieving coffee beans, the roasting chamber 14 is communicated with the circulating blower 16 through a second pipeline 30, the circulating blower 16 is communicated with the inflow port 32 of the cyclone separator 18, the communication part between the cyclone separator 18 and the circulating blower 16 is provided with a sealing port 34 and a baffle plate 36, the separator bottom 40 of the cyclone separator 18 is conical, the bottom end of the cyclone separator 18 is provided with a burner 42, the bottom end of the cyclone separator 18 is communicated with the hopper 50, the inside of the first pipeline 22 is provided with an exhaust valve 52, the top end of the incineration pipe 20 is provided with a chimney 62, and the outer end of the burner 42 is provided with a valve 64.

Specifically, the curer body 10 flows a process gas stream 56 through the roasting chamber 14 and through the second duct 30. The blower 16 is inserted into the cyclone separator 18 via a return line back out of the cyclone separator 18 and the process gas stream 56 flows through the first conduit 22 back into the roasting chamber 14.

Specifically, the process gas stream 56 rotates in the direction 38 downward into the bottom 40 of the separator and around the burner 42, passes through the process gas stream 56 heavier than the hot gases of the flame of the burner 42 and enters the bottom end portion 44 of the burner tube 20, and the process gas stream 56 mixes with the flame combustion process of the burner 42 in a very small amount and exits the stack 62.

The cyclone separator 18 defines a heating chamber around the burner 42, the majority of which is in the separator base 40.

The process gas stream 56 contacts the burner 42 by approaching and heating portions and contacts the inner walls of the separator bottom 40, as well as the burner tubes 20. The process gas stream 56, which has been rotated downwards and enters the heating chamber of the roasting chamber 14, is caused by the upward movement caused by the inertia from the top downwards, and rises in the same rotational pattern around the incineration tubes 20, rises inside the baffle plate 36 to the upper chamber 46 and exits the cyclone 18 through the outflow opening 48.

Specifically, the process gas stream 56 is rotated at a substantial speed, and particles (e.g., coffee beans) are separated from the process gas stream 56 by centrifugal force of the cyclone 18, which then fall down the inner wall of the separator bottom 40 and are pulled downwardly out of the roasting chamber 14 into the hopper 50.

Specifically, the cyclone separator 18, the process air flow 56 enters the first duct 22, and opens up flush with the upper inner wall of the first duct 22 via the exhaust valve 52 in the center position, and the exhaust valve 52 falls downward and closes in the machine-stopped state of the baker body 10, which is the state position of the exhaust valve 52 during the baking process.

Process air stream 56 flows through air stream return 70 to firing chamber 14, which continues to operate under the moving force of recirculation blower 16, or recirculation blower 16 is used during the cooking process. During this time. The fumes from some roasted bean particles (e.g., coffee beans) are incinerated in the incineration tube 20, and the process gas stream 56 is repeatedly separated by the cyclone 18. However, most of the fumes remain in the process gas stream 56 and firing chamber 14 due to combustion with the flame gases from the burner 42.

Upon completion of roasting in the roaster body 10, roasted hot bean particles (e.g., coffee beans) are released into the cooling pan 26, where the fumes are released into the ambient air after cooling.

At the first controller 58 and the second controller 60 in the system of the curer body 10, for controlling the up-down height of the burner 42 according to the temperature of the exhaust gas at the exhaust stack 62 of the incineration tubes 20, and for controlling the amount of discharge of combustible mixture (natural gas) for the burner 42 by means of a valve 64 controlled according to the temperature in the roasting chamber 14.

The exhaust valve 52 arrangement in the system of the toaster body 10, which is intended to purge the system of potentially explosive gases and dust particulate matter prior to the ignition of the burner 42, is specifically noted that it is necessary to open the exhaust valve 52 after the heating device is closed prior to starting the toaster body 10, and to inhibit opening of the exhaust valve 52 during operation.

The exhaust valve 52 in this inwardly swung position will provide a large vent opening to the first conduit 22, while the inwardly swung exhaust valve 52 will substantially prevent airflow from exiting the outflow opening 48 of the cyclonic separator 18 through the first conduit 22. Thus downward with the burner 42 closed, the exhaust valve 52 will swing inward to position the outflow port 48 and activate the recycle blower 16 to purge any potentially explosive gases or air particles in the vent in the following manner.

Ambient air is drawn into the cyclone separator 18 through the firing chamber 14, but the gas stream is withdrawn from the stack 62 through the burner tube 20. As this is the only outlet available for moving air in this mode of operation. The exhaust valve 52 in this mode will be in the position shown in dashed lines.

As described above, the vent 52 purge function is performed in a different manner.

Specifically, the baking is just completed, while the burner 42 remains activated. The exhaust valve 52 swings inwardly substantially preventing the process gas stream from flowing out of the cyclone separator 18 and opens the exhaust valve 52 vent to the first conduit 22. As described above, in the pre-purging of the particles, this results in flow through the firing chamber 14, into the cyclone 18, and then up through the burner tube 20 and out the stack 62. In this case, however, the burner 42 is flame activated and goes high. As the coffee beans remain in the roasting chamber 14, the air entering through the exhaust valve 52 and returning by the air flow 70 cools the coffee beans. The roasting of the beans in this ambient air is carried out with a precooling dwell for a few seconds in approximately ten to sixty minutes. They are cooled below the temperature at which the fumes are generated. It is important that the smoke is harmful, essentially removed from the beans and the roasting process and any residual smoke stream is also removed. The flow of smoke, gases and air is forced up through the incineration tubes 20, preferably now at a higher temperature, to treat the flow of fast moving waste pollutants which are discharged from the stack 62 before combustion.

In particular, in this mode of operation of the bean particle (e.g. coffee bean) roasting apparatus, there are three things that are done to different degrees for the operator selected duration: 1. the coffee beans rapidly cool the roasting chamber 14 by ambient air airflow backflow 70, below the smoke temperature; 2. the roasting chamber 14 is cleaned of smoke and particles; 3. the fumes and particles are circulated to move through the cyclone 18 and up the blower 16, the incineration tube 20 and the upper chamber 46 for incineration. Accordingly, the roaster body 10 can completely achieve smokeless operation.

The operator (a bean roaster) operates the computer to automatically or manually control the cooling degree of the first controller 58 and the second controller 60 in the roasting machine body 10, and the longer the roasting machine body 10 operates in the air cooling mode, the more smoke is reduced, but the bean particles (such as coffee beans) are not cooled, and when the bean particles (such as coffee beans) are cooled in the external cooling plate 28, under the feasible condition, the operator (the bean roaster) can move the bean particles (such as coffee beans) out of the cooling plate 28 as soon as possible so as to avoid influencing the flavor coffee of the food. If a small amount of smoke is still likely to be generated, the internal air cooling cycle time of the main body 10 is set according to the judgment of the operator (a bean roaster) experience.

In particular, an exhaust valve 52 for opening and closing the main components of the toaster body 10. The exhaust valve 52 is connected to a vertically oriented main shaft 72 near the air flow outlet 48.

A crank arm 74 (seen only in marginal views) is fixed to the spindle 72 so that rotating the spindle 72 opens or closes the exhaust valve 52 and passes through a cylindrical cylinder 76 carrying a connecting rod 78 to the crank arm 74. The actuating cylinder 76 is adapted by the electronic control unit 24 via software accompanying the main body 10 of the roaster, which software includes programming to operate the exhaust valve 52 open, as described above, and the circulating blower 16 continues to operate for completion immediately after roasting, at the operator's option for a prescribed period of time. The recycle blower 16 speed is automatically adjusted, increasing with increasing recycle blower settings. As described above, the software of the system has activated a source of purified air through the system prior to each heating.

In particular, if desired, the burner tube 20, upper chamber 46 and stack 62 can be made longer or larger in diameter to provide sufficient residence time for complete burning of the fumes and contaminants. If the burner 42 is turned high enough, this operation is not necessary and the cooling/flue gas incineration cycle is run for a short time of air flow, which can be a matter of seconds, less than a minute. It is noted that the inlet of cyclone 18, which is located upstream of the recycle blower 16 in the preferred position, may be located upstream of the roasting chamber 14 if desired, and the like, to achieve better results.

Furthermore, the exhaust valve 52, although conveniently operated in the form shown, may be configured differently and may be located further downstream of the first conduit 22 (although this would prevent the first conduit 22 from cleaning the particles before purging the combustion in air and so may be objected to, or a door may be provided to close the airflow outlet 48 of the process cyclone 18 and another shutter or may be opened to vent ambient air into the first conduit 22 into the firing chamber 14.

As shown in fig. 6, a processing method of smokeless coffee roasting comprises the following steps:

step one, finishing exhaust and purging:

the operator turns on the power supply and the coffee beans are placed in the hopper 12 or are already placed. The operator presses the machine control 24 start button of the coffee roasting apparatus 10 and the system enters the idle mode. The burner 42 does not ignite immediately. The exhaust valve 52 is opened and the recycle blower 16 is opened. It takes a while for the recycle blower 16 to accelerate. Depending on the size of the system, the system purge will last approximately 20 to 60 seconds, clearing any smoke or air particles that may be present in the system prior to ignition, turning on the heat source burner 42 after purging is complete, stopping the automatic reduction of the speed of the recycle blower 16, and closing the exhaust valve 52.

Step two, baking:

after the exhaust purge is completed and valve 64 is closed, exhaust valve 52, the burner lamp and roasting chamber 14 are allowed to warm up for a suitable period of time, and when roasting chamber 14 is sufficiently hot, the bean particles (e.g., coffee beans) are heated and placed in roasting chamber 14 from hopper 50, now into a roasting mode in which burner 42 heats the circulating air and gas that roast the beans in roasting chamber 14. One of the screen blades 28 in the roasting chamber 14 is rotating during roasting or the process gas flow 56 is rotating in the roasting chamber 14 to agitate and ensure uniform roasting. Air agitation may be used rather than mechanical agitation. The recycle blower 16 settings may be selected by an operator and the automatic first controller 58 and second controller 60 control modes may be selected manually or automatically with respect to the burner 42 settings.

Step three, baking is finished:

at the end of the toasting, a decision is made in the automatic mode, either by the operator or by the automatic mode, to determine whether the air cooling cycle will cease to be used. If so, the air-cooled cycle begins. If not, the system enters a post-bake mode, and it can be determined whether the system entered the air-cooling cycle and is preset prior to the operation of the bake cycle.

And step four, putting the beans into the roasting chamber 14 for roasting for about 10 seconds to achieve the optimal effect of 60 seconds. Fresh air is drawn through the roasting chamber 14 by means of the open air vents 52, cooling the coffee beans and exhausting residual fumes through the incineration tubes 20 and the chimney 62. The screen blades 28 in the oven of the roasting chamber 14 continue to rotate, turning the beans over. The hot air is cooled in the roasting chamber 14 just like beans, and thus the burners 42 in the high setting do not recirculate back, because the exhaust valves 52 have opened, blocking recirculation, so that the combustion in the roasting chamber 14 stops and all the particles in the gas and air pass through the incineration pipes 20 and the chimney 62. After a preset air conditioning time, or manually by the operator, the air cooling cycle is ended, at which time the control device 24 controls the rotation of the screening blades 28 to stop.

At the end of the air cooling cycle, the partially cooled beans are released to the external cooling pan 26. This may be preset to initiate this operation automatically or manually by the operator.

The post-bake mode begins and the circulation fan is lowered to a lower level setting and after a delay, for example 20 seconds. The exhaust valve 52 is closed and the burner flame of the firing chamber 14 is reduced to a low flame.

At this point, the post-bake mode continues. This mode lasts for a preset time, for example, about three minutes. If a new batch of beans has not been previously moved into firing chamber 14, the post-bake mode end system will switch to standby mode. In this mode, the firing chamber 14 and burners 42 are in a low flame condition, and the burners 42 can be set to cycle between temperatures to prevent the system from heating up too quickly than desired. Or firing chamber 14 and burner 42 may be shut down.

Software controlled machines and processes have a variety of functions. By programming the computer and operator input to select settings, the control 24 can vary the speed of the recycle blower 16 as needed or desired; the arrangement of the burner 42 can be increased or decreased according to the requirement; the exhaust valve 52 is closed to open and close for the different purposes described above and the opening of the exhaust valve 52 to the cooling chimney 62 is lengthened or shortened as desired, depending on the internal air selected for the cooling time. Preferably the computer device includes a touch screen control 24 for operator input and a display. Although the inventive roaster body 10 and process is primarily intended for coffee bean roasting, other roasted beans and grains, particularly those that emit smoke, may be roasted. These claims are to be construed as applicable to other legumes and grains.

The foregoing detailed description of the preferred embodiments of the utility model has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.

Claims

1. A smokeless coffee roaster comprising a roaster body (10), characterized in that the roaster body (10) comprises a hopper (12), a roasting chamber (14), a circulating blower (16), a cyclone separator (18), a control device (24) and a cooling pan (26);

the hopper (12) and the circulating blower (16) are respectively arranged on the roasting chamber (14), the cyclone separator (18) is arranged on the circulating blower (16), the control device (24) is arranged on one side of the roasting machine body (10), and the cooling disc (26) is arranged at the bottom of the roasting chamber (14);

a first pipeline (22) used for exhausting air from the roasting chamber (14) is arranged at an outflow port (48) of the cyclone separator (18), an incineration pipe (20) is arranged inside the cyclone separator (18), screening blades (28) used for screening coffee beans are arranged inside the roasting chamber (14), the roasting chamber (14) is communicated with the circulating blower (16) through a second pipeline (30), the circulating blower (16) is communicated with an inflow port (32) of the cyclone separator (18), a sealing port (34) and a baffle plate (36) are arranged at the communication position of the cyclone separator (18) and the circulating blower (16), a separator bottom (40) of the cyclone separator (18) is conical, a burner (42) is arranged at the bottom end of the cyclone separator (18), and the bottom end of the cyclone separator (18) is communicated with a hopper (50), an exhaust valve (52) is arranged inside the first pipeline (22), and a valve (64) is arranged at the outer end of the combustor (42).

2. The smokeless coffee roaster of claim 1, wherein the control device (24) is a computer having a touch screen display.

3. The smokeless coffee roaster of claim 1, further comprising a first controller (58) for controlling a height of the burner (42) and a second controller (60) for controlling the valve (64).

4. The smokeless coffee roaster of claim 1, wherein a top end of the incineration tube (20) is provided with a chimney (62).

5. The smokeless coffee roaster of claim 3, wherein the cyclone separator (18) is provided with a directional main shaft (72) at the position of the outflow opening (48), the exhaust valve (52) is rotatably connected with the directional main shaft (72), and the directional main shaft (72) is fixedly connected with a cylinder (76) through a crank shaft (74) and a connecting rod (78).

6. The smokeless coffee roaster of claim 5, wherein the circulation blower (16), the cyclone separator (18), the first controller (58), the second controller (60), and the cylinder (76) are electrically connected with the control device (24), respectively.