Raw material stirring device for coffee powder production

Abstract

The utility model discloses a raw material stirring device for coffee powder production, which comprises a stirring tank, a spiral blade and a first heating device, the bottom of the stirring tank is arc-shaped, the stirring tank is used for placing coffee extract liquor, the lower part of the spiral blade is attached to the inner wall of the stirring tank, and the upper part of the spiral blade is higher than the coffee extract liquor level in the stirring tank; the first heating device is used for heating coffee extract in the stirring tank, and the spiral blade is connected with an output shaft of the first motor. According to the raw material stirring device for coffee powder production, when the stirring shaft leaves the liquid level, the surface makes contact with air, evaporation of water on the surface is promoted, and the production efficiency of coffee powder is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coffee powder production, in particular to a raw material stirring device for coffee powder production. Background Art

[0002] The coffee powder obtained after evaporating the water in the coffee extract can dissolve quickly, and is therefore widely loved by consumers. In the process of producing coffee powder, the coffee extract must be heated and stirred continuously to prevent the coffee powder precipitated at the bottom of the coffee extract from being damaged by excessively high temperatures. In the prior art, in the process of producing coffee powder, a motor is directly used to drive a stirring shaft to stir the raw material (coffee extract). During stirring, the stirring shaft is always immersed in the liquid, and the surface area of ​​the extract for evaporation of water is small, resulting in low production efficiency of coffee powder. Utility Model Content

[0003] In view of the above-mentioned prior art, the utility model provides a raw material stirring device for coffee powder production. When the stirring shaft leaves the liquid surface, the surface contacts with the air, which promotes the evaporation of surface water and improves the production efficiency of coffee powder.

[0004] To achieve the above purpose, the technical solution of the embodiment of the utility model is implemented as follows:

[0005] A raw material stirring device for coffee powder production comprises a stirring tank, a spiral blade and a first heating device, wherein the bottom of the stirring tank is arc-shaped, the stirring tank is used to place coffee extract, the lower part of the spiral blade is in contact with the inner wall of the stirring tank, and the upper part is higher than the coffee extract liquid level in the stirring tank, the first heating device is used to heat the coffee extract in the stirring tank, and the spiral blade is connected to the output shaft of a first motor.

[0006] Furthermore, it also includes a second motor, and the output shaft of the second motor is provided with a knocking hammer, and the knocking hammer knocks the output shaft of the first motor when rotating.

[0007] Furthermore, the first end of the bottom of the stirring tank is higher than the second end, and the spiral blade pushes the coffee powder extraction liquid to move toward the first end when rotating. The first end is connected to the auxiliary heating chamber, and a third motor and a stirring shaft are provided in the auxiliary heating chamber. The output shaft of the third motor is connected to the stirring shaft, and a second heating device is provided at the bottom of the auxiliary heating chamber.

[0008] Furthermore, the first heating device and the second heating device are electric heaters.

[0009] Furthermore, a storage tank is provided above the stirring tank, the storage tank is connected to a discharge pipe, the discharge pipe is connected to the stirring tank, and the discharge pipe is provided with a control valve.

[0010] Furthermore, the bottom surface of the storage tank is in an inverted V shape.

[0011] Furthermore, flow guide pipes are provided on both sides of the storage tank.

[0012] The beneficial effect of the utility model is that the first heating device is used to heat the coffee extract in the stirring tank during the stirring process, so as to promote the evaporation of water in the extract and improve the production efficiency of coffee powder. The lower part of the spiral blade is in contact with the inner wall of the stirring tank, so that the precipitated coffee powder can be stirred to avoid adhering to the inner wall of the stirring tank. During stirring, the lower part of the spiral blade is immersed in the extract, and the water in the extract adheres to the stirring shaft. When the stirring shaft leaves the liquid surface, the surface contacts the air, which promotes the evaporation of water on the surface. With the stirring of the stirring shaft, the evaporation area of ​​the coffee extract can be expanded, and the production efficiency of coffee powder can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic structural diagram of a raw material stirring device for coffee powder production in an embodiment of the present application;

[0014] Figure 2 This is a schematic structural diagram of a raw material stirring device for coffee powder production in an embodiment of the present application;

[0015] Description of Figure Numbers:

[0016] 1 stirring tank, 2 spiral blade, 3 first heating device, 4 first motor, 5 second motor, 6 percussion hammer, 7 auxiliary heating chamber, 8 third motor, 9 stirring shaft, 10 second heating device, 11 storage tank, 12 discharge pipe, 13 control valve, 14 guide pipe. DETAILED DESCRIPTION

[0017] The technical solution of the utility model is further elaborated in detail below in conjunction with the drawings and specific embodiments of the specification. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of the utility model. The terms used herein in the specification of the utility model are only for the purpose of describing specific embodiments and are not intended to limit the utility model. In the following description, the expression "some embodiments" is involved, which describes a subset of all possible embodiments, but it should be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments, and can be combined with each other without conflict.

[0018] It should also be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "inside", "outside", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0019] Example 1

[0020] Please refer to the attached Figure 1 The present application provides a raw material stirring device for coffee powder production, comprising a stirring tank 1, a spiral blade 2 and a first heating device 3. The bottom of the stirring tank 1 is arc-shaped. The stirring tank 1 is used to put coffee extract. The lower part of the spiral blade 2 is in contact with the inner wall of the stirring tank 1, and the upper part is higher than the coffee extract liquid level in the stirring tank 1. The first heating device 3 is used to heat the coffee extract in the stirring tank 1. The spiral blade 2 is connected to the output shaft of the first motor 4. The coffee liquid obtained by extraction is poured into the stirring tank 1. When the first motor 4 in the stirring tank 1 is working, the spiral blade 2 is driven to rotate, and the rotation of the spiral blade 2 is used to stir the extract to promote the evaporation of water. During the stirring process, the first heating device 3 is used to heat the coffee extract in the stirring tank 1 to promote the evaporation of water in the extract and improve the production efficiency of coffee powder. The lower part of the spiral blade 2 is in contact with the inner wall of the stirring tank 1, so that the precipitated coffee powder can be stirred to avoid adhering to the inner wall of the stirring tank 1. During stirring, the lower part of the spiral blade 2 is immersed in the extract, and the moisture of the extract adheres to the stirring shaft 9. When the stirring shaft 9 leaves the liquid surface, the surface contacts the air, which promotes the evaporation of the moisture on the surface. With the stirring of the stirring shaft 9, the evaporation area of ​​the coffee extract can be expanded, thereby improving the production efficiency of coffee powder.

[0021] Optionally, a second motor 5 is further included, and a knocking hammer 6 is provided on the output shaft of the second motor 5. When the knocking hammer 6 rotates, it knocks the output shaft of the first motor 4. When coffee powder adheres to the spiral leaf 2, the second motor 5 can be turned on, and the second motor 5 drives the knocking hammer 6 to knock the output shaft of the first motor 4, thereby causing the spiral leaf 2 to vibrate and shake off the adhered coffee powder.

[0022] Specifically, the first end of the bottom of the stirring tank 1 is higher than the second end. When the spiral blade 2 rotates, it pushes the coffee powder extract to move toward the first end. The first end is connected to the auxiliary heating chamber 7. A third motor 8 and a stirring shaft 9 are provided in the auxiliary heating chamber 7. The output shaft of the third motor 8 is connected to the stirring shaft 9. A second heating device 10 is provided at the bottom of the auxiliary heating chamber 7. The coffee powder precipitated due to the evaporation of water in the stirring tank 1 moves toward the first end under the push of the spiral blade 2, and finally falls into the auxiliary heating chamber 7. The second heating device 10 at the bottom of the auxiliary heating chamber 7 continues to heat and dry the coffee powder. When the third motor 8 rotates, it drives the stirring shaft 9 to rotate, thereby stirring the coffee powder in the auxiliary heating chamber 7 and promoting uniform drying of the coffee powder.

[0023] Specifically, the first heating device 3 and the second heating device 10 are electric heaters, for example, electric heating wires, electric heating plates or electric magnetic disks are used to heat the stirring tank 1 and the auxiliary heating chamber 7 .

[0024] Example 2

[0025] Please refer to the attached Figures 1-2 The difference between this embodiment and the embodiment 1 is that a storage tank 11 is provided above the stirring tank 1, and the storage tank 11 is connected to a discharge pipe 12, and the discharge pipe 12 is connected to the stirring tank 1, and the discharge pipe 12 is provided with a control valve 13. The storage tank 11 stores coffee extract, and after the control valve 13 is opened, the coffee extract can be discharged from the discharge pipe 12 into the stirring tank 1. At the same time, the water vapor generated in the stirring tank 1 flows upward to heat the bottom of the storage tank 11, and the waste heat can be used to heat the extract in the storage tank, making full use of the heat energy.

[0026] Specifically, the bottom surface of the storage tank 11 is in an inverted V shape. The liquid condensed at the bottom of the storage tank flows to both sides along the bottom of the storage tank to avoid backflow into the stirring tank 1. The inverted V-shaped structure also increases the surface area of ​​the bottom of the storage tank 11, which is beneficial to heat exchange. The density of hot air is small, and the inverted V-shaped structure can gather hot air to the middle of the bottom of the storage tank 11, which is beneficial to heating the storage tank 11.

[0027] Specifically, guide pipes 14 are provided on both sides of the storage tank 11. Liquid flowing down from both sides enters the guide pipes 14 and is finally discharged along the guide pipes 14.

[0028] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. The protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A raw material stirring device for coffee powder production, characterized in that: The invention comprises a stirring tank, a spiral blade and a first heating device. The bottom of the stirring tank is arc-shaped. The stirring tank is used for placing coffee extract. The lower part of the spiral blade is in contact with the inner wall of the stirring tank, and the upper part is higher than the coffee extract liquid level in the stirring tank. The first heating device is used for heating the coffee extract in the stirring tank. The spiral blade is connected to the output shaft of the first motor.

2. A raw material stirring device for coffee powder production according to claim 1, characterized in that: It also includes a second motor, wherein the output shaft of the second motor is provided with a striking hammer, and the striking hammer strikes the output shaft of the first motor when rotating.

3. A raw material stirring device for coffee powder production according to claim 1, characterized in that: The first end of the bottom of the stirring tank is higher than the second end. When the spiral blade rotates, it pushes the coffee powder extraction liquid to move toward the first end. The first end is connected to the auxiliary heating chamber. A third motor and a stirring shaft are arranged in the auxiliary heating chamber. The output shaft of the third motor is connected to the stirring shaft. A second heating device is arranged at the bottom of the auxiliary heating chamber.

4. A raw material stirring device for coffee powder production according to claim 3, characterized in that: The first heating device and the second heating device are electric heaters.

5. The raw material stirring device for coffee powder production according to claim 1, characterized in that: A storage tank is provided above the stirring tank, the storage tank is connected with a discharge pipe, the discharge pipe is connected with the stirring tank, and the discharge pipe is provided with a control valve.

6. A raw material stirring device for coffee powder production according to claim 5, characterized in that: The bottom surface of the storage tank is in an inverted V shape.

7. A raw material stirring device for coffee powder production according to claim 6, characterized in that: Flow guide pipes are arranged on both sides of the storage tank.

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