Drying and desolventizing device for plant materials

Abstract

The utility model discloses a drying and desolventizing device for plant materials, which belongs to the field of material drying and desolventizing and comprises a tank body, a shaft, a plurality of layers of hollow discs and a plurality of material pushing and turning devices. The shaft penetrates through the centers of all the hollow discs; the material pushing and turning devices are respectively arranged at the upper ends of the hollow discs; the upper end of the tank body is provided with a feed port, and the lower end is provided with a discharge port connected with an inlet of the evapo-separated machine; the hollow discs comprise small-diameter hollow discs and large-diameter hollow discs correspondingly arranged at the lower ends of the small-diameter hollow discs; the small-diameter hollow disc comprises a top-layer disc arranged on the uppermost layer and a plurality of small discs; and the material pushing and turning device comprises a reamer arranged on the top-layer disc, a first material pushing and turning device provided with a first rake rod and a large rake knife, and a second material pushing and turning device provided with a second rake rod and a small rake knife. According to the utility model, materials can be scattered and distributed uniformly, the drying quantity is improved, and the degree of recovered solvent is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of material drying and desolventizing, in particular to a drying and desolventizing device for plant materials, which is suitable for drying and desolventizing plant materials with poor fluidity, fluffyness and containing solvents. Background Art

[0002] Plant materials refer to leaves, petals, and seed shells, including stevia, ginkgo leaves, rosemary, marigold flowers, sophora japonica seeds, chestnut husks, and milk thistle shells. They are characterized by poor fluidity, being fluffy, and containing solvents.

[0003] At present, the drying and desolventizing of plant materials adopts a single equipment and structure to dry the materials. The fluidity of the materials is poor after entering, and they are easy to clump during the pushing process and are not easy to be evenly distributed. The material drying effect is poor, the drying volume is small, the degree of recovered solvent is insufficient, and the moisture content of the materials cannot be controlled. It is necessary to increase water addition control, which increases the cost.

[0004] Therefore, it is necessary to develop a drying and desolventizing device for plant materials to solve the above problems. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a drying and desolventizing device for plant materials, which can achieve uniform distribution of materials, increase drying capacity, and improve the degree of recovered solvent.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A drying and desolventizing device for plant materials, comprising a tank body, a shaft arranged inside the tank body, several layers of hollow discs uniformly fixedly arranged on the side wall of the tank body, and several pushing and turning material devices arranged on the shaft; the shaft passes through the centers of all the hollow discs; the pushing and turning material devices are respectively arranged at the upper ends of the hollow discs; the upper end of the tank body is provided with a feed inlet, and the lower end is provided with a discharge port connected to the inlet of a degassing machine; the hollow discs include small-diameter hollow discs and large-diameter hollow discs respectively arranged at the lower ends of the small-diameter hollow discs; the small-diameter hollow discs include a top disc arranged on the uppermost layer and several small discs; the pushing and turning material device includes a reamer arranged on the top disc, a first pushing and turning material device provided with a first rake rod and a large rake knife, and a second pushing and turning material device provided with a second rake rod and a small rake knife.

[0008] A further improvement of the technical solution of the utility model is that: ten large-diameter hollow discs are provided, and nine small discs are provided; a first material pushing and turning device is provided on the five large-diameter hollow discs provided on the upper part of the tank body; a second material pushing and turning device is provided on the nine small discs; and a second material pushing and turning device is provided on the five large-diameter hollow discs provided on the lower part of the tank body.

[0009] A further improvement of the technical solution of the utility model is that the periphery of the large-diameter hollow disc is bent upward to form an outer retaining ring.

[0010] A further improvement of the technical solution of the utility model is that: a plurality of blanking holes are arranged on the top disc.

[0011] A further improvement of the technical solution of the utility model is that the diameter of the blanking hole is 7 cm.

[0012] The further improvement of the technical solution of the utility model is that: the first rake rods are arranged in four numbers, and the length of the first rake rods is smaller than the diameter of the large-diameter hollow disc; each first rake rod is provided with two large rake knives with the same inclination angle.

[0013] A further improvement of the technical solution of the utility model is that a counterweight is provided at the rear end of the large rake to prevent it from tilting.

[0014] A further improvement of the technical solution of the utility model is that the large rake is made of mirror-polished stainless steel.

[0015] The further improvement of the technical solution of the utility model lies in that: the second rake rods are set to eight, each of which is provided with a plurality of small rake knives with the same inclination angle; the length of the second rake rod is smaller than the diameter of the large diameter hollow disc; the length of the second rake rod is equal to the diameter of the small disc.

[0016] A further improvement of the technical solution of the utility model is that one end of the bearing is connected to a driving device.

[0017] Due to the adoption of the above technical solution, the technical progress achieved by the utility model is:

[0018] 1. The utility model can effectively prevent materials from clumping and sticking to the rake by arranging a reamer, a first material pushing and turning device and a second material pushing and turning device on different hollow discs, and can dry and desolventize plant materials with poor fluidity, fluffy materials and solvent-containing materials, completely solving the problem of material clumping and fluffy materials, and can control the moisture content and residual solvent of the materials according to the process index requirements, recover high-purity solvents, and improve the drying efficiency of the materials.

[0019] 2. In the utility model, the discharge port of the tank body is connected with the feed port of the desolventizer, so that the plant material with a large amount of solvent removed enters the desolventizer, and the high and low degrees of desolventization are separated, which can control the moisture content of the material, and further remove the residual solvent to below 5000ppm, thereby reducing the distillation cost while ensuring the drying efficiency, and effectively ensuring the product quality of the plant material.

[0020] 3. The utility model can be used according to different production (stevia, ginkgo leaves, rosemary, marigold flowers,

[0021] According to the drying and desolventizing needs of plant materials such as Sophora japonica seeds, chestnut bracts, and milk thistle shells, the type, quantity, angle of the rakes and the temperature of the desolventizer can be adjusted to meet the production and discharge humidity requirements of different feed volumes, achieve the drying effect, and ensure that the output material product indicators meet the product process safety requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor;

[0023] Figure 1 It is a schematic structural diagram of a drying and desolventizing device for plant materials in an embodiment of the utility model;

[0024] Figure 2 It is a schematic diagram of the structure of the top disc and the reamer in the utility model;

[0025] Figure 3 It is a schematic diagram of the structure of the large diameter hollow disc, the first rake rod and the large rake blade in the utility model;

[0026] Figure 4 It is a structural schematic diagram of the small and medium disc, the second rake rod and the small rake blade of the utility model;

[0027] Figure 5 It is a schematic diagram of the structure of the large-diameter hollow disc, the second rake rod and the small rake blade in the utility model;

[0028] Among them, 1. tank body; 1-1. discharge port; 2. top disc; 2-1. drop hole; 3. large diameter hollow disc; 4. small disc; 5. reamer; 6. first rake rod; 6-1. large rake blade; 7. second rake rod; 7-1. small rake blade; 8. shaft; 9. driving device; 10. degassing machine. DETAILED DESCRIPTION

[0029] It should be noted that the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "several" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0032] The present invention is further described in detail below with reference to the accompanying drawings and embodiments:

[0033] like Figure 1-5 As shown, a drying and desolventizing device for plant materials, especially suitable for drying and desolventizing stevia residue, comprises a tank body 1, a shaft 8 arranged inside the tank body 1, several layers of hollow discs uniformly fixedly arranged on the side wall of the tank body 1 and several pushing and turning material devices arranged on the shaft 8; the shaft 8 passes through the center of all the hollow discs; the pushing and turning material devices are respectively arranged at the upper ends of the hollow discs; the upper end of the tank body 1 is provided with a feed inlet, and the lower end is provided with a discharge port 1-1 connected to the inlet of a steam desolventizer 10; the hollow discs include small-diameter hollow discs and large-diameter hollow discs 3 respectively arranged at the lower ends of the small-diameter hollow discs; the small-diameter hollow discs include a top disc 2 arranged on the uppermost layer and several small discs 4; the pushing and turning material device includes a reamer 5 arranged on the top disc 2, a first pushing and turning material device provided with a first rake rod 6 and a large rake knife 6-1, and a second pushing and turning material device provided with a second rake rod 7 and a small rake knife 7-1.

[0034] Specifically, a feed port is provided on the top of the tank body 1, and several layers of hollow discs are evenly distributed inside. The shaft 8 passes through the center of all the hollow discs. A reamer 5, a first rake rod 6 and a second rake rod 7 are provided on the shaft 8. A large rake 6-1 is provided on the first rake rod 6, and a small rake 7-1 is provided on the second rake rod 7. Both the large rake 6-1 and the small rake 7-1 are provided with specific inclination angles, and are fixed to the tank body 1 through the shaft 8. One end of the shaft 8 is connected to a driving device 9, which can be a reduction motor. Driven by the driving device 9, the reamer 5, the first rake rod 6 and the second rake rod 7 rotate together, and at the same time drive the large rake 6-1 and the small rake 7-1 to rotate. The material with a large amount of solvent removed enters the degassing machine 10 from the discharge port 1-1, and the residual solvent is further removed to below 5000ppm to ensure the quality of the material product.

[0035] Furthermore, ten large-diameter hollow discs 3 and nine small discs 4 are provided; a first material pushing and turning device is provided on the five large-diameter hollow discs 3 arranged on the upper part of the tank body 1; a second material pushing and turning device is provided on the nine small discs 4; and a second material pushing and turning device is provided on the five large-diameter hollow discs 3 arranged on the lower part of the tank body 1.

[0036] Furthermore, the periphery of the large-diameter hollow disk 3 is bent upward to form an outer stopper ring.

[0037] Furthermore, a plurality of evenly distributed blanking holes 21 are provided on the top disc 2 .

[0038] Furthermore, the diameter of the blanking hole 21 is 7 cm.

[0039] Furthermore, four first rake rods 6 are provided, and the length of the first rake rods 6 is smaller than the diameter of the large-diameter hollow disc 3 ; each first rake rod 6 is provided with two large rake knives 6 - 1 with the same inclination angle.

[0040] Furthermore, a counterweight is provided at the rear end of the large rake blade 6-1 to prevent it from tilting.

[0041] Furthermore, the large rake blade 6-1 is made of mirror-polished stainless steel, which can prevent materials from adhering to the large rake blade 6-1.

[0042] Furthermore, eight second rake rods 7 are provided, and each second rake rod 7 is provided with a plurality of small rake knives 7-1 with the same inclination angle; the length of the second rake rod 7 is less than the diameter of the large-diameter hollow disc 3; the length of the second rake rod 7 is equal to the diameter of the small disc 4. Each second rake rod 7 can be provided with a different number of small rake knives 7-1.

[0043] Furthermore, one end of the shaft 8 is connected to a driving device 9 .

[0044] Specifically, there are twenty layers of hollow discs from top to bottom, the topmost layer (first layer) is a top disc 2, a reamer 5 is provided on the top disc 2, and a material drop hole 2-1 with a diameter of 7 cm is provided on the top disc 2, so that the plant material is evenly distributed and falls on the large-diameter hollow disc 3 located on the second layer, and the large-diameter hollow disc 3 of the second layer is provided with a first pushing and turning material device, the third layer is a small disc 4, and the small disc 4 of the third layer is provided with a second pushing and turning material device; the fourth layer, the sixth layer, the eighth layer and the tenth layer are all large-diameter hollow discs 3 provided with the first pushing and turning material device; the third layer, the fifth layer, the seventh layer, the ninth layer, the eleventh layer, the thirteenth layer, the fifteenth layer, the seventeenth layer and the nineteenth layer are all small discs 4 provided with the second pushing and turning material device; the twelfth layer, the fourteenth layer, the sixteenth layer, the eighteenth layer and the twentieth layer are all large-diameter hollow discs 3 provided with the second pushing and turning material device. The material passing through the small disc 4 falls onto the large diameter hollow disc 3 from all sides, and the material passing through the large diameter hollow disc 3 falls onto the small disc 4 from the middle, and is dried and desolvated layer by layer.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A drying and desolventizing device for plant materials, characterized in that: The invention comprises a tank body (1), a shaft (8) arranged inside the tank body (1), a plurality of layers of hollow discs evenly fixedly arranged on the side wall of the tank body (1), and a plurality of pushing and turning material devices arranged on the shaft (8); the shaft (8) passes through the centers of all the hollow discs; the pushing and turning material devices are respectively arranged at the upper ends of the hollow discs; the tank body (1) is provided with a feed inlet at the upper end, and a discharge outlet (1-1) connected to the inlet of the degassing machine (10) at the lower end; the hollow disc comprises a small The invention relates to a hollow disc with a small diameter and a hollow disc with a large diameter (3) respectively arranged at the lower end of the hollow disc with a small diameter; the hollow disc with a small diameter comprises a top disc (2) arranged at the uppermost layer and a plurality of small discs (4); the pushing and turning material device comprises a reamer (5) arranged on the top disc (2), a first pushing and turning material device provided with a first rake rod (6) and a large rake blade (6-1), and a second pushing and turning material device provided with a second rake rod (7) and a small rake blade (7-1).

2. A drying and desolventizing device for plant materials according to claim 1, characterized in that: Ten large-diameter hollow discs (3) are provided, and nine small discs (4) are provided; the five large-diameter hollow discs (3) provided on the upper part of the tank body (1) are provided with a first material pushing and turning device; the nine small discs (4) are provided with a second material pushing and turning device; and the five large-diameter hollow discs (3) provided on the lower part of the tank body (1) are provided with a second material pushing and turning device.

3. A drying and desolventizing device for plant materials according to claim 1, characterized in that: The periphery of the large-diameter hollow disc (3) is bent upward to form an outer stop ring.

4. A drying and desolventizing device for plant materials according to claim 1, characterized in that: The top disc (2) is provided with a plurality of material dropping holes (21).

5. A drying and desolventizing device for plant materials according to claim 4, characterized in that: The diameter of the drop hole (21) is 7 cm.

6. A drying and desolventizing device for plant materials according to claim 1, characterized in that: Four first rake rods (6) are provided, and the length of the first rake rods (6) is smaller than the diameter of the large-diameter hollow disc (3); and each first rake rod (6) is provided with two large rake knives (6-1) with the same inclination angle.

7. A drying and desolventizing device for plant materials according to claim 6, characterized in that: The rear end of the large rake blade (6-1) is provided with a counterweight to prevent it from tilting.

8. A drying and desolventizing device for plant materials according to claim 6, characterized in that: The large rake blade (6-1) is made of mirror-polished stainless steel.

9. A drying and desolventizing device for plant materials according to claim 1, characterized in that: The second rake rods (7) are arranged in eight pieces, and each second rake rod (7) is provided with a plurality of small rake knives (7-1) having the same inclination angle; the length of the second rake rod (7) is smaller than the diameter of the large-diameter hollow disc (3); and the length of the second rake rod (7) is equal to the diameter of the small disc (4).

10. A drying and desolventizing device for plant materials according to claim 1, characterized in that: One end of the shaft (8) is connected to a driving device (9).

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