Coffee grounds dewatering device for easy recovery

Abstract

The utility model relates to coffee residue dewatering device technical field, concretely relates to a coffee residue dewatering device convenient to recycle, including shell and dewatering cylinder, the shell is located dewatering cylinder's outside, dewatering cylinder's both sides are fixed with spring one and vibrator between the shell, the bottom sliding joint of dewatering cylinder has the water filter, the bottom fixed connection of shell has the water collecting cylinder below dewatering cylinder. The utility model discloses by adopting extrusion principle, utilizes the rotating motor drive screw rotation transmission extrusion cylinder and moves the coffee residue in dewatering cylinder to push to the conical water filter in, and the pressure gradually increases extrusion moisture, cooperates the drainage channel formed between water filter and water collecting cylinder, makes extrusion liquid permeate water filter and concentrate in water collecting cylinder and discharge through the drain, then coffee residue solid remains in water filter, realizes continuous work, pressure controllable.

Description

Technical Field

[0001] This utility model relates to the technical field of coffee grounds dehydration devices, specifically to a coffee grounds dehydration device that is easy to recycle. Background Technology

[0002] In the coffee processing and waste treatment sector, coffee grounds dehydration is a crucial step in resource utilization. Traditional dehydration methods mainly include natural drying, mechanical pressing, and centrifugation, but all have significant limitations: natural drying is inefficient and subject to environmental conditions; mechanical pressing is prone to equipment clogging or increased energy consumption due to the high fiber content of coffee grounds; and centrifugation suffers from complex equipment and high maintenance costs. Furthermore, existing technologies generally neglect the viscous nature of coffee grounds, resulting in unstable dehydration rates (typically only 50%–60%) and severe residue adhesion, hindering subsequent recycling. With increasing environmental requirements and the expanding applications of coffee grounds in biofuels, fertilizers, and other fields, the need for further dehydration is growing.

[0003] Traditional dehydration methods typically employ natural drying, mechanical pressing, or centrifugal separation. Natural drying is inefficient and limited by weather conditions, while mechanical pressing and centrifugal dehydration, although more efficient, cannot fully address the issues of complex equipment, high energy consumption, and easy residue adhesion. Furthermore, dehydrated coffee grounds are difficult to recycle quickly, and the filter structure used to assist in liquid-residue separation during dehydration is not easy to disassemble and clean, increasing subsequent processing costs.

[0004] Therefore, it is necessary to invent a coffee grounds dehydration device that is easy to recycle in order to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a coffee grounds dehydration device that is easy to recycle. It employs a compression principle, using a rotary motor to drive a screw to rotate and move the compression cylinder up and down, pushing the coffee grounds inside the dehydration cylinder into a conical water outlet filter. The pressure gradually increases, squeezing out water. Combined with the drainage channel formed between the water outlet filter and the water collection cylinder, the liquid during compression passes through the water outlet filter and is concentrated in the water collection cylinder, then discharged through the drain outlet. The solid coffee grounds remain in the water outlet filter, enabling continuous operation and controllable pressure. Before compression, a vibrator and spring work together to achieve high-frequency vibration of the dehydration cylinder, effectively loosening the coffee grounds, preventing clumping, and improving the uniformity of subsequent dehydration. This addresses the problems of existing technologies, such as complex equipment, high energy consumption, and easy residue adhesion, as well as the difficulty in quickly recycling dehydrated coffee grounds and the difficulty in disassembling and cleaning the filter structure used for liquid-residue separation, which increases subsequent processing costs.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a coffee grounds dehydration device for easy recycling, comprising a shell and a dehydration cylinder. The shell is located outside the dehydration cylinder. Springs and vibrators are fixedly connected between the two sides of the dehydration cylinder and the shell. A water outlet filter is slidably engaged at the bottom of the dehydration cylinder. A water collection cylinder located below the dehydration cylinder is fixedly connected to the bottom of the shell. A base plate is detachably connected to the bottom of the water collection cylinder. A connecting rod is fixedly connected between the base plate and the water outlet filter.

[0007] Preferably, an upper bracket is fixedly connected to the top of the outer casing, and a lower bracket is fixedly connected to the bottom of the outer casing.

[0008] Preferably, a rotary motor is mounted on the upper bracket, and the output shaft of the rotary motor is fixedly connected to a screw via a coupling. An extrusion cylinder is threaded onto the external thread of the screw, and a guide block is fixedly connected to the side of the extrusion cylinder. A guide groove matching the guide block is provided on the inner wall of the upper bracket.

[0009] Preferably, a temperature-controlled heating ring is installed inside the bottom of the extrusion cylinder.

[0010] Preferably, a drain outlet is fixedly connected to the side of the water collection cylinder, and a valve is installed on the drain outlet.

[0011] Preferably, the bottom plate has symmetrically formed limiting grooves inside, and limiting blocks are slidably installed inside the limiting grooves. A spring is fixedly connected to one side of the limiting block and the limiting groove, and an insert block is fixedly connected to the other side of the limiting block. Slots matching the insert blocks are formed on both sides of the inner wall of the water collecting cylinder. An operating block is fixedly connected to the bottom of the limiting block, and the operating block extends to the bottom of the bottom plate.

[0012] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0013] 1. By employing the extrusion principle, a rotary motor drives a screw to rotate, which in turn moves the extrusion cylinder up and down, pushing the coffee grounds in the dehydration cylinder into the conical water outlet filter. The pressure gradually increases, squeezing out the water. Combined with the drainage channel formed between the water outlet filter and the water collection cylinder, the liquid is concentrated in the water collection cylinder through the water outlet filter and discharged through the drain outlet during extrusion. The solid coffee grounds remain in the water outlet filter, enabling continuous operation and controllable pressure. Before extrusion, a vibrator and a spring are used to achieve high-frequency vibration of the dehydration cylinder, effectively loosening the coffee grounds, preventing clumping, and improving the uniformity of subsequent dehydration.

[0014] 2. By setting and using limit blocks, springs, operating blocks, inserts and slots, the insertion state of the inserts and slots can be adjusted to separate the base plate from the water collection cylinder, so as to remove the water filter and recycle the coffee grounds and clean the residual grounds, avoiding overload or blockage. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the connection structure between the outer shell and the water collecting cylinder of this utility model;

[0018] Figure 3 This is a schematic diagram of the planar front view structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the overall cross-sectional structure of this utility model;

[0020] Figure 5 For the present utility model Figure 4 Enlarged structural diagram at point A in the middle.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Outer shell; 2. Dehydration cylinder; 3. Spring 1; 4. Vibrator; 5. Outlet filter; 6. Water collection cylinder; 7. Base plate; 8. Connecting rod; 9. Upper bracket; 10. Lower bracket; 11. Rotary motor; 12. Screw; 13. Extrusion cylinder; 14. Guide block; 15. Guide groove; 16. Temperature control heating ring; 17. Drain outlet; 18. Valve; 19. Limit groove; 20. Limit block; 21. Spring 2; 22. Operating block; 23. Insert block; 24. Slot. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0024] This utility model provides, for example Figure 1-5The coffee grounds dehydration device shown includes a housing 1 and a dehydration cylinder 2. The housing 1 is located outside the dehydration cylinder 2. Springs 3 and vibrators 4 are fixedly connected between the two sides of the dehydration cylinder 2 and the housing 1. Springs 3 and vibrators 4 work together to make the dehydration cylinder 2 vibrate. High-frequency vibration can loosen the coffee grounds, prevent clumping, and improve the uniformity of subsequent dehydration.

[0025] The bottom of the dehydration cylinder 2 is slidably connected to the water outlet filter 5, which is used to filter coffee grounds and liquid, making it easy to classify and collect. The liquid is squeezed out through the water outlet filter 5 and collected in the water collection cylinder 6.

[0026] The bottom of the outer shell 1 is fixedly connected to a water collection cylinder 6 located below the dehydration cylinder 2. The bottom of the water collection cylinder 6 is detachably connected to a base plate 7. A connecting rod 8 is fixedly connected between the base plate 7 and the water outlet filter 5. When the water collection cylinder 6 and the base plate 7 are connected, the water outlet filter 5 is stably locked between the bottom of the dehydration cylinder 2 and the water collection cylinder 6. When the base plate 7 is subsequently removed from the water collection cylinder 6, the water outlet filter 5 can be taken out for easy cleaning and recycling of the internal coffee grounds.

[0027] The top of the outer casing 1 is fixedly connected to an upper bracket 9, and the bottom of the outer casing 1 is fixedly connected to a lower bracket 10.

[0028] A rotary motor 11 is mounted on the upper bracket 9. The output shaft of the rotary motor 11 is fixedly connected to a screw 12 via a coupling. An extrusion cylinder 13 is threaded onto the external thread of the screw 12. A guide block 14 is fixedly connected to the side of the extrusion cylinder 13. A guide groove 15 matching the guide block 14 is opened on the inner wall of the upper bracket 9. The guide block 14 slides along the guide groove 15 to limit and assist the extrusion cylinder 13 to move up and down linearly along the screw 12.

[0029] A temperature-controlled heating ring 16 is installed inside the bottom of the extrusion cylinder 13. The temperature-controlled heating ring 16 is electrically connected to the equipment temperature control system for heating assistance. It heats the bottom of the extrusion cylinder 13 at a low temperature to reduce the viscosity of the coffee grounds and accelerate the extraction. The reason for choosing a low temperature is to avoid high temperature damaging the structure of the coffee grounds and reduce the problem of protein denaturation and sticking to the water filter 5.

[0030] A drain outlet 17 is fixedly connected to the side of the water collection cylinder 6, and a valve 18 is installed on the drain outlet 17.

[0031] The base plate 7 has symmetrically arranged limiting grooves 19 inside. Limiting blocks 20 are slidably installed inside the limiting grooves 19. A spring 21 is fixedly connected between one side of the limiting block 20 and the limiting groove 19. An insert block 23 is fixedly connected to the other side of the limiting block 20. Slots 24 matching the insert blocks 23 are opened on both sides of the inner wall of the water collecting cylinder 6. An operating block 22 is fixedly connected to the bottom of the limiting block 20. The operating block 22 extends to the bottom of the base plate 7. Moving the operating block 22 can drive the limiting block 20 to slide in the limiting grooves 19, and can adjust the insertion state of the insert block 23 and the slot 24, which is used to control the disassembly and assembly state of the water collecting cylinder 6 and the base plate 7.

[0032] The working principle of this practical application is as follows:

[0033] After pouring the coffee grounds to be dehydrated into the water outlet filter 5, the expansion of spring 21 helps push the insert 23 to automatically engage with the slot 24, fixing the base plate 7 to the water collection cylinder 6. Before squeezing and dehydrating, the vibrator 4 works in conjunction with spring 3 to vibrate the dehydration cylinder 2. The high-frequency vibration loosens the coffee grounds, preventing clumping and improving the uniformity of subsequent dehydration. The rotary motor 11 is driven to work, driving the screw 12 to rotate, causing the extrusion cylinder 13 to move downwards. The pressure gradually increases, squeezing out the water from the coffee grounds in the water outlet filter 5. During squeezing, the liquid from the grounds passes through the water outlet filter 5 and is concentrated in the water collection cylinder 6. Afterwards, the valve 18 is opened and discharged from the drain outlet 17. The moving operation block 22 can drive the limiting block 20 to slide in the limiting groove 19, which can adjust the insertion state of the insert 23 and the slot 24. After separating the base plate 7 from the water collection cylinder 6, the coffee grounds in the water outlet filter 5 can be recycled, and the water outlet filter 5 can also be cleaned.

[0034] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A coffee grounds dewatering device for easy recovery, comprising a housing (1) and a dewatering cylinder (2), characterized in that: The outer shell (1) is located outside the dehydration cylinder (2). Springs (3) and vibrators (4) are fixedly connected between the two sides of the dehydration cylinder (2) and the outer shell (1). A water outlet filter (5) is slidably engaged at the bottom of the dehydration cylinder (2). A water collection cylinder (6) located below the dehydration cylinder (2) is fixedly connected to the bottom of the outer shell (1). A bottom plate (7) is detachably connected to the bottom of the water collection cylinder (6). A connecting rod (8) is fixedly connected between the bottom plate (7) and the water outlet filter (5).

2. The coffee grounds dewatering device for easy recovery according to claim 1, characterized in that: The top of the outer shell (1) is fixedly connected to an upper bracket (9), and the bottom of the outer shell (1) is fixedly connected to a lower bracket (10).

3. The coffee grounds dewatering device for easy recovery according to claim 2, characterized in that: A rotary motor (11) is installed on the upper bracket (9). The output shaft of the rotary motor (11) is fixedly connected to a screw (12) via a coupling. An extrusion cylinder (13) is threaded onto the external thread of the screw (12). A guide block (14) is fixedly connected to the side of the extrusion cylinder (13). A guide groove (15) matching the guide block (14) is opened on the inner wall of the upper bracket (9).

4. The coffee grounds dehydration device for easy recycling according to claim 3, characterized in that: A temperature-controlled heating ring (16) is installed inside the bottom of the extrusion cylinder (13).

5. The coffee grounds dehydration device for easy recycling according to claim 1, characterized in that: The side of the water collection cylinder (6) is fixedly connected to a drain outlet (17), and a valve (18) is installed on the drain outlet (17).

6. The coffee grounds dehydration device for easy recycling according to claim 1, characterized in that: The base plate (7) has symmetrically provided limiting grooves (19) inside. A limiting block (20) is slidably installed inside the limiting groove (19). A spring (21) is fixedly connected between one side of the limiting block (20) and the limiting groove (19). An insert block (23) is fixedly connected to the other side of the limiting block (20). Slots (24) matching the insert block (23) are provided on both sides of the inner wall of the water collecting cylinder (6). An operating block (22) is fixedly connected to the bottom of the limiting block (20). The operating block (22) extends to the bottom of the base plate (7).

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