A vermicompost biological fertilizer drying system
By designing a vermicompost drying system including a mixing drum and a drying mechanism, the problems of small drying space and insufficient drying in the prior art are solved, rapid and sufficient drying of vermicompost is achieved, and subsequent processing steps are simplified.
Patent Information
- Application Number
- CN202421203737.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2034-05-30
AI Technical Summary
In the existing vermicompost drying technology, the drying space is small, which causes some vermicompost to be dried on the surface by hot air, and the internal drying is insufficient, which prolongs the drying time. The dried vermicompost needs to be broken and processed again, which is inconvenient to be processed.
A vermicompost biological fertilizer drying system is designed, including a mixing mechanism and a drying mechanism. The stirring mechanism consists of a stirring drum, a stirring shaft, first and second stirring leaves. The vermicompost is stirred and beaten in layers through the staggered stirring leaf group, and dried by blowing hot air into the stirring drum through the drying mechanism.
Through this system, the vermicompost can be fully dispersed and dried, shortening the drying time, avoiding the need for re-broken treatment after drying, and improving the convenience of treatment.
Smart Images
Figure CN222733224U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vermicompost drying, in particular to a vermicompost biological fertilizer drying system. Background Art
[0002] Vermicompost biofertilizer drying refers to the process of reducing the moisture content to a certain degree of dryness. Vermicompost is the substance excreted by earthworms after digesting organic matter. It is rich in nutrients required by plants and is a high-quality organic fertilizer. However, vermicompost has a high moisture content and needs to be dried. If it is not dried, it may affect its storage and transportation, and may even cause excessive microbial activity and the quality of the fertilizer.
[0003] The prior art method of drying earthworm manure generally uses spiral blades to deliver earthworm manure to a horizontally placed drying cylinder, and then delivers the earthworm manure out of the drying cylinder through the spiral blades. A hot air blower and a simple turning rod are provided in the drying cylinder, and the earthworm manure is turned by the turning rod in cooperation with the spiral blades. However, the drying space formed between the spiral blades and the drying cylinder is small, resulting in only a small part of the earthworm manure in contact with the turning rod being able to be dried in a stirring manner, and the remaining earthworm manure, especially the agglomerated earthworm manure, can only move with the spiral blades, so that this part of the earthworm manure can only be dried on the surface by the hot air blower, and its internal drying cannot be broken up, which leads to a slower drying time and prolongs the overall drying time of the earthworm manure; and if the earthworm manure is subsequently bagged and transported, it needs to be broken up again, which is inconvenient to handle the earthworm manure. Utility Model Content
[0004] In order to solve the technical problems existing in the above-mentioned background technology, the utility model provides a vermicompost biological fertilizer drying system.
[0005] The technical solution of this utility model is as follows:
[0006] A vermicompost biofertilizer drying system comprises a frame, a stirring mechanism is arranged on the frame, the stirring mechanism comprises a stirring drum and a stirring assembly therein, and a feed inlet is arranged above the stirring drum;
[0007] A drying mechanism is provided above the stirring mechanism, and an air outlet of the drying mechanism is arranged toward the interior of the stirring drum;
[0008] The stirring assembly includes a stirring shaft rotatably arranged in the stirring drum, the stirring shaft is connected to the driving motor, the axis of the stirring shaft is coaxial with the axis of the stirring drum, and the stirring shaft is provided with a first stirring blade group and a second stirring blade group distributed alternately along the axis direction thereof;
[0009] The first stirring blade group includes a plurality of first stirring blades arranged along the circumferential direction of the stirring shaft, the second stirring blade group includes a plurality of second stirring blades arranged along the circumferential direction of the stirring shaft, the length of the first stirring blade is longer than the second stirring blade, and a flipping plate is provided at one end of the first stirring blade close to the inner wall of the stirring barrel, and the length direction of the flipping plate is parallel to the axis of the stirring shaft.
[0010] A plurality of first stirring blades and a plurality of second stirring blades are staggered and have different lengths, so that the earthworm manure put into the stirring drum can be stirred in layers, and the longer first stirring blades can break up and lift up large pieces of earthworm manure for scattering, drive the large pieces of earthworm manure to the top of the stirring shaft and push downward to break them up, and dry the earthworm manure scattered and stirred by the stirring rod through the drying mechanism. The earthworm manure can be fully broken up and dried through the stirring action of the two stirring rods with different structures.
[0011] In order to facilitate the turning plate to scatter earthworm manure in the mixing drum, the side of the turning plate corresponding to the rotation direction of the mixing shaft is set as the turning surface. The turning surface is in direct contact with the earthworm manure during rotation. A turning trough is provided on the turning surface. The turning trough can hold more earthworm manure. If the turning surface of the turning plate is a plane, the earthworm manure will easily fall off the turning plate during rotation, which is inconvenient for scattering the earthworm manure.
[0012] In order to prevent the earthworm manure from having a high moisture content and being difficult to be thrown out from the material turning trough, a plurality of parallel material discharge troughs are provided on the material turning surface. One end of the material discharge trough is connected to the material turning trough, and the other end extends a material turning plate away from the first stirring blade. Driven by the stirring shaft, the material turning plate can be thrown out from the material turning trough or thrown out along the material discharge trough.
[0013] Regarding the specific structure of the material discharge chute, the width of the material discharge chute is smaller than the width of the material turning chute.
[0014] In order to facilitate lifting and breaking up the large pieces of earthworm castings, the width of the first stirring blade is set to be greater than the width of the second stirring blade, thereby increasing the contact area with the large pieces of earthworm castings.
[0015] Regarding the staggered installation of the first stirring blade and the second stirring blade, the first stirring blade and the second stirring blade are not arranged in the same horizontal plane, and the two stirring blades are raised to fully stir the earthworm manure, which is beneficial to the drying of the earthworm manure.
[0016] In order to prevent earthworm castings with high moisture content from accumulating on the wider first stirring blade, the first stirring blade is provided with a plurality of drop holes along its length direction. When the first stirring blade rotates, the earthworm castings attached thereto will separate from the first stirring blade through the drop holes or its two sides, thereby reducing the burden on the first stirring blade.
[0017] When the first stirring rod rotates, the earthworm manure with high moisture content will gradually fall to the position of the first stirring rod close to the stirring shaft. The accumulation of earthworm manure in this part is most obvious. Therefore, the diameters of multiple drop holes are gradually reduced away from the stirring shaft to increase the falling of earthworm manure at the root of the first stirring rod.
[0018] Regarding the setting position of the turning plate, the distance between the turning plate and the inner wall of the mixing drum is 0.1-1cm to avoid wear caused by direct contact between the turning plate and the inner wall of the mixing drum. The outside of the turning plate will be attached to earthworm manure. Setting this distance will remove some of the adhering earthworm manure.
[0019] The earthworm manure attached to the inner wall of the mixing drum may become drier due to the hot air blown out by the drying mechanism. If the earthworm manure is scraped by a turning plate with a flat surface on one side, the turning plate may get stuck. For this reason, scraping teeth are provided on the side of the turning plate close to the inner wall of the mixing drum. The dry earthworm manure is separated by the scraping teeth for easy scraping.
[0020] Regarding the installation position between the turning plates, the vertical spacing between the opposite end faces of adjacent turning plates is 1-5cm. Within this range, it can not only avoid the frequent wear of the turning plates that are evenly covered with earthworm manure, but also ensure the stirring of the earthworm manure inside the mixing drum.
[0021] In order to facilitate the removal of the dried earthworm castings, a closable discharge port is provided below the mixing drum, and a feeding device is provided below the discharge port. The feeding device includes a feeding drum and a propeller blade installed therein, and the inlet of the feeding drum is located directly below the discharge port.
[0022] The beneficial effects of the present invention are:
[0023] The first stirring rods and the second stirring rods of different lengths are arranged alternately, so as to disperse and stir the earthworm manure at different layers in the stirring barrel. During the dispersion process, the earthworm manure is dried by hot air blown into the stirring barrel by the drying mechanism.
[0024] The first stirring rod with a wider width cooperates with the turning plate to lift the agglomerated earthworm manure and then break it up. The lifted earthworm manure is first thrown upward to increase the drying area, and then collides with the second stirring rod or the stirring shaft behind the first stirring rod during the falling process, which facilitates breaking up.
[0025] The drop hole facilitates the worm castings attached to the first stirring rod to fall off, especially the worm castings accumulated at the root of the first stirring rod are most obvious, therefore, the drop hole at the root of the first stirring rod has the largest inner diameter;
[0026] The drying mechanism comprises a dryer, which is arranged on the upper part of the mixing drum. The hot air brings out the moisture in the earthworm castings from the opening of the mixing drum, thereby reducing the humidity in the mixing drum. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] In the attached picture:
[0028] Figure 1 It is a schematic diagram of the three-dimensional structure;
[0029] Figure 2 Figure 1 is a schematic diagram of the internal structure of the mixing drum;
[0030] Figure 3 for Figure 2 The enlarged structure at A in the middle is shown;
[0031] Figure 4 for Figure 2 A top view of
[0032] Figure 5 for Figure 4 AA section structural diagram;
[0033] Figure 6 for Figure 1 A front view of
[0034] The components represented by the reference numerals in the figure are:
[0035] 1. Frame; 2. Mixing drum; 21. Feed inlet; 22. Discharge outlet; 3. Drying mechanism; 4. Mixing shaft; 5. First mixing blade; 51. Dropping hole; 6. Second mixing blade; 7. Turning plate; 71. Turning trough; 72. Discharge trough; 8. Feeding device. DETAILED DESCRIPTION
[0036] See also Figure 1 and Figure 2 A vermicompost biofertilizer drying system is shown, comprising a frame 1, a stirring mechanism is provided on the frame 1, the stirring mechanism comprises a stirring drum 2 and a stirring assembly therein, a feed inlet 21 is provided above the stirring drum 2, a drying mechanism 3 is provided above the stirring mechanism, and an air outlet of the drying mechanism 3 is arranged toward the inside of the stirring drum 2. The stirring assembly comprises a stirring shaft 4 rotatably arranged in the stirring drum 2, the stirring shaft 4 is connected to a driving motor, the axis of the stirring shaft 4 is coaxial with the axis of the stirring drum 2, and a first stirring blade group and a second stirring blade group are arranged on the stirring shaft 4 along the axis direction thereof, which are staggeredly distributed.
[0037] See also Figure 2 , Figure 4 and Figure 5As shown, the first stirring blade group includes a plurality of first stirring blades 5 arranged along the circumferential direction of the stirring shaft 4, and the second stirring blade group includes a plurality of second stirring blades 6 arranged along the circumferential direction of the stirring shaft 4. The length of the first stirring blade 5 is longer than that of the second stirring blade 6, and a turning plate 7 is provided at one end of the first stirring blade 5 close to the inner wall of the stirring drum 2, and the length direction of the turning plate 7 is parallel to the axis of the stirring drum 2. The first stirring blade 5 and the second stirring blade 6 are staggeredly installed, and the first stirring blade 5 and the second stirring blade 6 are not arranged in the same horizontal plane, so that the two stirring blades can fully stir the earthworm manure, which is beneficial to the drying of the earthworm manure.
[0038] See also Figure 2 and Figure 3 As shown, regarding the setting position of the turning plate 7, the distance between the turning plate 7 and the inner wall of the mixing drum 2 is 0.1-1 cm, which avoids the turning plate 7 from directly contacting the inner wall of the mixing drum 2 and causing wear, and the outside of the turning plate 7 will be attached to earthworm castings. Setting this distance will remove some of the adhering earthworm castings.
[0039] In order to facilitate the turning plate 7 to scatter earthworm manure in the mixing drum 2, a side of the turning plate 7 corresponding to the rotation direction of the stirring shaft 4 is set as a turning surface. The turning surface is in direct contact with the earthworm manure during rotation. A turning groove 71 is provided on the turning surface. The turning groove 71 can hold more earthworm manure. If the turning surface of the turning plate 7 is a plane, the earthworm manure will easily fall off the turning plate 7 during rotation, which is not convenient for scattering earthworm manure. In order to avoid the earthworm manure having a high moisture content and not being easy to be thrown out from the turning groove 71, a plurality of parallel dredging grooves 72 are also provided on the turning surface. One end of the dredging groove 72 is connected to the turning groove 71, and the other end extends a turning plate 77 in a direction away from the first stirring blade 5. Driven by the stirring shaft 4, the turning plate 7 can be thrown out from the turning groove 71 or thrown out along the dredging groove 72. Regarding the specific structure of the dredging groove 71, the width of the dredging groove 72 is smaller than the width of the turning groove 71.
[0040] See also Figure 2 and Figure 5 As shown, a plurality of first stirring blades 5 and a plurality of second stirring blades 6 are arranged alternately and have different lengths, so that the earthworm manure put into the mixing drum 2 can be stirred in layers, and the longer first stirring blades 5 can break up and lift and scatter large pieces of earthworm manure, drive the large pieces of earthworm manure to the top of the mixing shaft 4 and push it downward to break it up, and dry the earthworm manure scattered and stirred by the stirring rod through the drying mechanism 3. Through the stirring action of the two stirring rods with different structures, the earthworm manure can be fully broken up and dried. The drying mechanism 3 includes a dryer and a protective cover with holes. The dryer is arranged on the upper part of the mixing drum 2. The dryer is symmetrically arranged in two groups. The dryer is installed in the protective cover. The protective cover can reduce the earthworm manure from adhering to the dryer. When the earthworm manure is dried, the hot air brings the moisture in the earthworm manure out from the opening of the mixing drum 2, reducing the humidity in the mixing drum 2.
[0041] See also Figure 2 As shown, in order to facilitate lifting and breaking up the above-mentioned large pieces of earthworm castings, the width of the first stirring blade 5 is set to be greater than the width of the second stirring blade 6, so as to increase the contact area with the large pieces of earthworm castings. In order to prevent earthworm castings with high moisture content from accumulating on the wider first stirring blade 5, the first stirring blade 5 is provided with a plurality of drop holes 51 along its length direction. When the first stirring blade 5 rotates, the earthworm castings attached thereto will detach from the first stirring blade 5 from the drop holes 51 or its two sides, thereby reducing the burden on the first stirring blade 5. When the first stirring rod rotates, earthworm castings with high moisture content will gradually fall to the position of the first stirring rod close to the stirring shaft 4. The accumulation of earthworm castings in this part is most obvious. For this reason, the diameters of the plurality of drop holes 51 are set to decrease in the direction away from the stirring shaft 4, thereby increasing the drop of earthworm castings at the root of the first stirring rod.
[0042] Regarding the installation position between the turning plates 7, the vertical spacing between the opposite end faces of adjacent turning plates 7 is 1-5 cm. Within this range, the turning plates 7 that are evenly covered with earthworm manure can be prevented from being constantly worn out, while the stirring of the earthworm manure inside the mixing drum 2 can be ensured.
[0043] See also Figure 5 and Figure 6 As shown, in order to facilitate the removal of the dried earthworm castings, a closable discharge port 22 is provided below the mixing drum 2, and a feeding device 8 is provided below the discharge port 22. The feeding device 8 includes a feeding drum and a propeller blade installed therein, and the inlet of the feeding drum is located directly below the discharge port 22.
Claims
1. A vermicompost biofertilizer drying system, comprising a frame (1), characterized in that: The frame (1) is provided with a stirring drum (2) and a stirring shaft (4) rotatably arranged therein, the stirring shaft (4) is connected to a driving motor, and the stirring shaft (4) is provided with a first stirring blade group and a second stirring blade group that are staggered along its axial direction; The first stirring blade group comprises a plurality of first stirring blades (5) arranged along the circumferential direction of the stirring shaft (4), and the second stirring blade group comprises a plurality of second stirring blades (6) arranged along the circumferential direction of the stirring shaft (4), the first stirring blade (5) is longer than the second stirring blade (6), and a turning plate (7) is detachably provided at one end of the first stirring blade (5) close to the inner wall of the stirring barrel (2), and the length direction of the turning plate (7) is parallel to the axis of the stirring shaft (4); A drying mechanism (3) is provided above the mixing drum (2), and an air outlet of the drying mechanism (3) is arranged toward the interior of the mixing drum (2).
2. A vermicompost biofertilizer drying system according to claim 1, characterized in that: The side of the turning plate (7) corresponding to the rotation direction of the stirring shaft (4) is a turning surface, and a turning groove (71) is provided on the turning surface.
3. A vermicompost biofertilizer drying system according to claim 2, characterized in that: The material turning surface is also provided with a plurality of parallel material discharge grooves (72), one end of which is connected to the material turning groove (71), and the other end of which extends out of a material turning plate (7) in a direction away from the first stirring blade (5).
4. A vermicompost biofertilizer drying system according to claim 3, characterized in that: The width of the material discharge groove (72) is smaller than the width of the material turning groove (71).
5. A vermicompost biofertilizer drying system according to claim 3 or 4, characterized in that: The width of the first stirring blade (5) is greater than the width of the second stirring blade (6).
6. The vermicompost biofertilizer drying system according to claim 1, characterized in that: The first stirring blade (5) is provided with a plurality of material dropping holes (51) along its length direction.
7. A vermicompost biofertilizer drying system according to claim 6, characterized in that: The diameters of the plurality of material dropping holes (51) decrease in a direction away from the stirring shaft (4).
8. The vermicompost biofertilizer drying system according to claim 2, characterized in that: The vertical spacing between the opposite end faces of adjacent turning plates (7) is 1-5 cm.
9. The vermicompost biofertilizer drying system according to claim 1, characterized in that: A closable discharge port (22) is provided below the mixing drum (2), and a feeding device (8) is provided below the discharge port (22).