Coffee powder circulating drying system

Abstract

The utility model relates to the technical field of drying equipment, in particular to a coffee powder circulation drying system which comprises a drying box, a heating piece, a feeding module and a discharging port, the feeding module and the discharging port are arranged on the drying box, and a circulation conveying module used for conveying coffee powder deposited at the bottom end of the drying box to the upper portion inside the drying box is arranged on one side outside the drying box. The circulating conveying module comprises a fixed shell, a driving wheel rotationally installed at the upper end and the lower end in the fixed shell, a driven wheel, a first motor driving the driving wheel to rotate, a conveying belt and a plurality of shoveling plates fixed to the outer side wall of the conveying belt at equal intervals. A discharging port and a feeding port which communicate with the interior of the fixed shell are formed in the upper end and the lower end of the outer side wall of the drying box correspondingly, a stirring module for stirring coffee powder in the drying box is arranged in the drying box, and the coffee powder deposited at the bottom of the drying box can be conveyed to the upper portion of the drying box to be circularly heated and dried; and the drying is more uniform.

Description

TECHNICAL FIELD

[0001] The utility model relates to drying equipment technical field, concretely is coffee powder circulation drying system. BACKGROUND

[0002] The drying of coffee powder is the key step in the coffee processing process, which can reduce the moisture content of coffee powder to a safe level, prevent mold and microbial growth, maintain flavor, and at the same time, low moisture content can slow down oxidation and deterioration, prolong the shelf life.

[0003] In the Chinese patent document, the application number is 202321891129.7, which discloses a circulating coffee powder drying device. By setting negative pressure pipe, variable frequency negative pressure fan, separation cylinder, etc. on the upper part of the drying machine, the dried and relatively dry coffee powder can be separated from the moist coffee powder. The relatively moist coffee powder is left in the drying chamber for further drying. The relatively dry coffee powder moves to the lower end of the separation cylinder due to its weight and is discharged into the drying chamber again through the butterfly valve for secondary drying. The dried coffee powder moves to the upper part of the separation cylinder due to its small weight. In this way, the drying is more uniform. In actual use, when there is a lot of coffee powder inside, the coffee powder at the upper and lower ends of the inside may still be unevenly heated. UTILITY MODEL CONTENT

[0004] The utility model aims to provide a coffee powder circulation drying system to solve the problems raised in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a coffee powder circulation drying system, which comprises a drying box, a heating element for drying coffee powder inside the drying box, an inlet module and a discharge port provided on the drying box, a circulation conveying module for conveying coffee powder deposited at the bottom end of the drying box to the upper part of the drying box is provided on one side of the outside of the drying box, and the circulation conveying module comprises a fixed housing fixed vertically on the outside wall of the drying box, a driving wheel rotatably installed at the upper and lower ends inside the fixed housing, a driven wheel, a first motor driving the driving wheel to rotate, a transmission belt sleeved outside the driving wheel and the driven wheel, and a plurality of equally spaced scraper blades fixed on the outside wall of the transmission belt. The upper and lower ends of the outside wall of the drying box are respectively provided with a discharge port and an inlet port in communication with the inside of the fixed housing. The scraper blades are arranged on the outer peripheral wall of the transmission belt, and the end of the scraper blade away from the transmission belt abuts against the inner peripheral wall of the fixed housing. The inside of the drying box is provided with a stirring module for stirring the coffee powder inside.

[0006] Further, a top cover is detachably mounted at the top end of the drying box, and an exhaust port in communication with the inside of the drying box is provided on the top cover.

[0007] Further, the stirring module comprises a rotating shaft rotatably arranged at the center of the top cover, a second motor for driving the rotating shaft to rotate, and a stirring rod fixed to the rotating shaft.

[0008] Further, the drying box is internally provided with a cylindrical cavity, and the stirring rod comprises a horizontal section abutting against the bottom end of the inner sidewall of the drying box, a vertical section abutting against the inner circumferential wall of the drying box, and a plurality of connecting rods connecting the rotating shaft and the vertical section.

[0009] Further, the feeding module comprises a flip cover hingedly arranged at one side of the top cover, a fastening bolt threadedly arranged at the edge of the flip cover, and a fixing seat fixed at the top end edge of the drying box, and when the flip cover is flipped to be horizontal, the flip cover cooperates with the top cover to seal the top end of the drying box, and the fastening bolt can be threadedly connected with the fixing seat.

[0010] Further, the bottom end of the discharging port is provided with a discharging valve, and the bottom end of the drying box is fixedly provided with a plurality of supporting legs.

[0011] Compared with the prior art, the coffee powder circulating drying system has the advantages that the coffee powder deposited at the bottom of the drying box can be transported to the upper part of the drying box for circulating heating and drying, so that the drying is more uniform, the internal coffee powder can be stirred and dispersed by the stirring module, the uniformity of drying is further improved, and the coffee powder is prevented from adhering to the inner sidewall of the drying box and causing the blockage of the feeding port. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is a three-dimensional structure schematic view of the utility model;

[0013] Fig. 2 It is a sectional structure schematic view of the utility model;

[0014] Fig. 3 It is a sectional structure schematic view of the drying box of the utility model.

[0015] In the drawing: 1, drying box; 101, feeding port; 102, discharging port; 103, flange ring; 2, top cover; 201, exhaust port; 3, feeding module; 301, flip cover; 3011, handle; 302, fastening bolt; 303, fixing seat; 4, discharging port; 5, circulating conveying module; 501, fixed shell; 502, driving wheel; 503, driven wheel; 504, first motor; 505, conveying belt; 506, scraper; 6, stirring module; 601, rotating shaft; 602, second motor; 603, stirring rod; 6031, horizontal section; 6032, vertical section; 6033, connecting rod; 7, supporting leg. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the utility model will be clearly and completely described in the description of the utility model in combination with the drawings in the embodiments of the utility model, and it should be explained that, in the description of the utility model, the terms "first", "second" and the like are only for the purpose of description and do not mean to particularly indicate the order or sequence and are not used to limit the utility model, and they are only for distinguishing the components or operations described by the same technical terms, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features, therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the terms "comprise", "consist" and any variations thereof in the description of the utility model and the above drawings are intended to cover the non-exclusive inclusion.

[0017] In the description of the utility model, it should be explained that, unless otherwise explicitly specified and limited, the terms "mount", "connect", "connection", "set" should be understood in a broad sense, for example, can be fixedly connected, can be detachably connected, can be mechanically connected, can be electrically connected, can be directly connected, can be indirectly connected through an intermediate medium, and can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances. In addition, in the description of the utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and are not intended to indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model.

[0018] Please refer to Figs. 1-3 The utility model provides an embodiment: coffee powder circulation drying system, including drying box 1, be used for drying the heating piece of coffee powder in drying box 1, set up in drying box 1 on feeding module 3 and discharge port 4, in this embodiment, drying box 1 inside is provided with cylindrical cavity, drying box 1's bottom end is fixed with three support legs 7, heating piece specifically can be the heating resistance wire (not shown in the drawing) installed on the bottom end or side wall of drying box 1, the top end of drying box 1 can detachably install top cover 2, specifically, drying box 1 top end edge is provided with flange ring 103, top cover 2 is fixed by bolt and flange ring 103 screw thread connection, top cover 2 is provided with the exhaust port 201 that communicates with the inside of drying box 1, can discharge the wet air generated when drying.

[0019] In this embodiment, the feeding module 3 includes a flip cover 301 hingedly arranged on one side of the top cover 2, a fastening bolt 302 threadedly arranged at the edge of the flip cover 301, and a fixing seat 303 fixed at the top end edge of the drying box 1. When the flip cover 301 is flipped to be horizontal, the flip cover 301 and the top cover 2 are spliced to form a circular plate structure, and the flip cover 301 and the top cover 2 are matched with each other to seal the top end of the drying box 1. The fastening bolt 302 can be threadedly connected with the fixing seat 303. The large opening facilitates the addition of coffee powder into the interior of the drying box 1. After the flip cover 301 is closed, the fastening bolt 302 is rotated to be threadedly connected with the fixing seat 303, so that the flip cover 301 is fixed. A handle 3011 is arranged at the top end of the flip cover 301 for easy taking.

[0020] In this embodiment, the discharge port 4 is arranged at the center of the bottom end of the drying box 1. A discharge valve is mounted at the bottom end of the discharge port 4 to facilitate the collection of the dried coffee powder.

[0021] A circulating conveying module 5 for conveying the coffee powder deposited at the bottom end of the drying box 1 to the upper portion of the interior of the drying box 1 is arranged at one side of the exterior of the drying box 1. The circulating conveying module 5 includes a fixed shell 501 vertically fixed on the outer side wall of the drying box 1, a driving wheel 502 rotatably arranged at the upper and lower ends of the interior of the fixed shell 501, a driven wheel 503, a first motor 504 for driving the rotation of the driving wheel 502, a transmission belt 505 sleeved on the outer sides of the driving wheel 502 and the driven wheel 503, and a plurality of wiper plates 506 equidistantly fixed on the outer side wall of the transmission belt 505. The transmission belt 505 is engaged with the driving wheel 502 and the driven wheel 503. The upper and lower ends of the outer side wall of the drying box 1 are respectively provided with a discharge port 102 and a feeding port 101 which are in communication with the interior of the fixed shell 501. The wiper plates 506 are arranged on the outer peripheral wall of the transmission belt 505, and the end portion of the wiper plate 506 away from the transmission belt 505 abuts against the inner peripheral wall of the fixed shell 501, for lifting the coffee powder and then conveying it upward. The discharge port 102 and the feeding port 101 are both located inside the fixed shell 501. The feeding port 101 is arranged above one side of the drying box 1. The discharge port 102 is specifically arranged at the bottom end of one side of the drying box 1, and the bottom end of the discharge port 102 is flush with the bottom end of the interior of the drying box 1. During operation, the coffee powder at the bottom end of the interior of the drying box 1 enters the interior of the fixed shell 501 through the feeding port 101. The driving wheel 502 is driven to rotate by the first motor 504, thereby driving the transmission belt 505 to rotate outside the driving wheel 502 and the driven wheel 503. The wiper plates 506 lift the coffee powder and convey it upward. Finally, the coffee powder reenters the interior of the drying box 1 through the discharge port 102, so as to realize the up-down circulation drying, which is more uniform. Furthermore, in order to improve the drying rate, a heating resistance wire can be mounted on the side wall of the fixed shell 501. The coffee powder can be heated and dried during the upward conveying process, so as to improve the drying rate.

[0022] The inside of the drying box 1 is provided with a stirring module 6 for stirring the coffee powder inside, specifically, the stirring module 6 comprises a rotating shaft 601 rotatably installed at the center of the top cover 2, a second motor 602 for driving the rotating shaft 601 to rotate, and a stirring rod 603 fixed on the rotating shaft 601, and the second motor 602 is specifically installed at the top end of the top cover 2, which can drive the rotating shaft 601 and the stirring rod 603 to rotate, so as to scatter the coffee powder inside the drying box 1 and improve the drying rate. Fig. 2 The stirring rod 603 comprises a horizontal section 6031 abutting against the bottom end of the inner side wall of the drying box 1, a vertical section 6032 abutting against the inner circumferential wall of the drying box 1, and a plurality of connecting rods 6033 connecting the rotating shaft 601 and the vertical section 6032, and during the rotation of the stirring rod 603, the horizontal section 6031 and the vertical section 6032 move relative to the inner side wall of the drying box 1, so as to scrape off the coffee powder adhered to the inner side wall, facilitate the later cleaning, and also avoid the blockage of the feeding port 101.

[0023] Working principle: first, open the flip cover 301 to add the coffee powder to be dried into the inside of the drying box 1, then close the flip cover 301, rotate the fastening bolt 302 to be screwed with the fixing seat 303, so that the inside of the drying box 1 is kept sealed, the coffee powder inside the drying box 1 is dried by the heating element, the coffee powder inside the drying box 1 is stirred and scattered by the stirring module 6, the driving wheel 502 is driven to rotate by the first motor 504, then the conveying belt 505 is driven to rotate outside the driving wheel 502 and the driven wheel 503, the coffee powder at the bottom end inside the drying box 1 enters the inside of the fixed housing 501 through the feeding port 101, the coffee powder is scooped up by the scoop plate 506 and is conveyed upward, and finally the coffee powder reenters the inside of the drying box 1 through the discharging port 102, so as to be circulated repeatedly, so that the coffee powder inside the drying box 1 is heated and dried sufficiently and uniformly, and finally is discharged through the discharging port 4.

[0024] It is apparent for those skilled in the art that the present application is not limited to the details of the foregoing exemplary embodiments, and the present application can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of equivalents of the elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be considered as limiting the claims involved.

Claims

1. A coffee powder circulating drying system, comprising a drying box (1), a heating piece for drying coffee powder inside the drying box (1), an inlet module (3) and an outlet (4) provided on the drying box (1), characterized in that: The side of the drying box (1) is provided with a circulating conveying module (5) for conveying the coffee powder deposited at the bottom end of the drying box (1) to the upper part of the drying box (1), and the circulating conveying module (5) comprises a fixed shell (501) fixed vertically on the outer side wall of the drying box (1), a driving wheel (502) rotatably installed at the upper and lower ends of the fixed shell (501), a driven wheel (503), a first motor (504) driving the rotation of the driving wheel (502), a conveying belt (505) sleeved on the outer side of the driving wheel (502) and the driven wheel (503), and a plurality of equally spaced scraper blades (506) fixed on the outer side wall of the conveying belt (505). The upper and lower ends of the outer side wall of the drying box (1) are respectively provided with a discharge port (102) and a feeding port (101) in communication with the inside of the fixed shell (501). The scraper blades (506) are arranged on the outer peripheral wall of the conveying belt (505), and the end of the scraper blades (506) away from the conveying belt (505) abuts against the inner peripheral wall of the fixed shell (501). The inside of the drying box (1) is provided with a stirring module (6) for stirring the coffee powder inside.

2. The coffee powder circulating drying system according to claim 1, characterized in that: The top end of the drying box (1) is detachably provided with a top cover (2), and the top cover (2) is provided with an exhaust port (201) in communication with the inside of the drying box (1).

3. The coffee powder circulating drying system according to claim 1, characterized in that: The stirring module (6) comprises a rotating shaft (601) rotatably installed at the center of the top cover (2), a second motor (602) driving the rotation of the rotating shaft (601), and a stirring rod (603) fixed on the rotating shaft (601).

4. The coffee powder circulating drying system according to claim 3, characterized in that: The inside of the drying box (1) is provided with a cylindrical cavity, and the stirring rod (603) comprises a horizontal section (6031) abutting against the bottom end of the inner side wall of the drying box (1), a vertical section (6032) abutting against the inner peripheral wall of the drying box (1), and a plurality of connecting rods (6033) connecting the rotating shaft (601) and the vertical section (6032).

5. The coffee powder circulating drying system according to claim 1, wherein: The feeding module (3) comprises a flap (301) hingedly arranged on one side of the top cover (2), a fastening bolt (302) threadedly arranged at the edge of the flap (301), and a fixed seat (303) fixed at the top end edge of the drying box (1). When the flap (301) is flipped to the horizontal position, the flap (301) cooperates with the top cover (2) to seal the top end of the drying box (1), and the fastening bolt (302) can be threadedly connected with the fixed seat (303).

6. The coffee powder circulating drying system according to claim 1, wherein: The bottom end of the discharge port (4) is provided with a discharge valve, and the bottom end of the drying box (1) is fixedly provided with a plurality of supporting legs (7).

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