阅读说明：本技术 一种餐厨垃圾分选装置 (Kitchen waste sorting device ) 是由 刘东斌 黄沧 言海燕 王旭伟 于 2019-09-26 设计创作，主要内容包括：本发明公开了一种餐厨垃圾分选装置,包括壳体、可周向旋转的搅拌轴和筛筒,筛筒位于壳体中且两端开口,搅拌轴穿设于筛筒中且贯穿壳体沿搅拌轴轴线方向的两个端面；壳体上开设有分设于筛筒轴线方向两侧的进、出料口,搅拌轴上设有多个搅拌机构,每个搅拌机构包括两个相对设置的耙板组,每个耙板组包括多个在搅拌轴的轴线方向上呈螺旋状排列的耙板,耙板组在垂直于搅拌轴轴线的截面上的投影为圆心角﹤180°的扇形。螺旋状结构具有将物料向前推进的功能,相对设置的耙板组在搅拌轴转动过程中可对移动中的餐厨垃圾进行扬起和抛落,使餐厨垃圾多次接触筛网结构,并进行多次筛分,不仅能够提高筛分效率,还能减少餐厨垃圾缠绕和挂料现象。(The invention discloses a kitchen waste sorting device which comprises a shell, a stirring shaft and a screen cylinder, wherein the stirring shaft and the screen cylinder can rotate in the circumferential direction; offer on the casing and divide the business turn over, the discharge gate of locating sieve section of thick bamboo axis direction both sides, be equipped with a plurality of rabbling mechanisms on the (mixing) shaft, every rabbling mechanism includes the harrow board group of two relative settings, every harrow board group includes a plurality of harrow boards that are the heliciform and arrange on the axis direction of (mixing) shaft, and the projection of harrow board group on the cross-section of perpendicular to (mixing) shaft axis is the fan-shaped of central angle less than 180. The heliciform structure has the function of advancing the material, and the rake board group that sets up relatively can be raised and thrown the kitchen garbage in moving at the (mixing) shaft rotation in-process, makes kitchen garbage contact screen cloth structure many times to sieve many times, not only can improve screening efficiency, can also reduce kitchen garbage winding and string material phenomenon.)

1. The kitchen waste sorting device is characterized by comprising a shell (1), a stirring shaft (2) capable of rotating in the circumferential direction and a screen cylinder (3) capable of rotating in the circumferential direction relative to the stirring shaft (2), wherein the screen cylinder (3) is positioned in the shell (1), openings are formed in two ends of the screen cylinder (3) along the axial direction of the screen cylinder (3), the axial directions of the screen cylinder (3) and the stirring shaft (2) are parallel or coaxial, and the stirring shaft (2) penetrates through the screen cylinder (3) and penetrates through two end faces of the shell (1) along the axial direction of the stirring shaft (2); a feed inlet (11) and a discharge outlet (12) are formed in the shell (1), the feed inlet (11) and the discharge outlet (12) are respectively formed in two sides of the screen cylinder (3) along the axial direction of the stirring shaft (2), the opening of the feed inlet (11) faces upwards, and the opening of the discharge outlet (12) faces downwards; a plurality of stirring mechanisms are arranged on the section of the stirring shaft (2) in the shell (1), and are arranged at intervals along the axial direction of the stirring shaft (2); every rabbling mechanism includes two harrow board groups (4) that set up relatively, and every harrow board group (4) includes a plurality of harrow boards (41), and a plurality of harrow boards (41) are the heliciform and arrange on the axis direction of (mixing) shaft (2), the projection of harrow board group (4) on the cross-section of perpendicular to (mixing) shaft (2) axis is the fan-shaped, fan-shaped central angle < 180 °.

2. The kitchen waste sorting device according to claim 1, wherein the central angle of the sector is not more than 90 °.

3. The kitchen waste sorting device according to claim 1, characterized in that a collecting hopper (13) with a downward opening is arranged on the housing (1), and the collecting hopper (13) is arranged between the feeding hole (11) and the discharging hole (12).

4. The kitchen waste sorting device according to claim 1, wherein two sides of the screen drum (3) in the axial direction are respectively provided with a slewing bearing (5), an outer ring (51) of the slewing bearing (5) is fixedly connected with the screen drum (3), and an inner ring (52) of the slewing bearing (5) is fixedly connected with the housing (1).

5. The kitchen waste sorting device according to claim 4, characterized in that mounting plates (18) fixedly connected with the outer wall of the housing (1) are respectively arranged on two sides of the screen drum (3) along the axial direction, and an inner ring (52) of the slewing bearing (5) is fixedly connected with the mounting plates (18); one of the mounting plates (18) is provided with a driving mechanism (7) which is in transmission connection with an outer ring (51) of the slewing bearing (5).

6. The kitchen waste sorting device according to claim 1, characterized in that the rake plates (41) of two opposite rake plate sets (4) are in one-to-one correspondence, and the two rake plates (41) corresponding to each other are respectively arranged at two ends of the radial direction of the circular cross section perpendicular to the axis of the stirring shaft (2).

7. The kitchen waste sorting device according to claim 1, characterized in that the opposite faces of the two rake plates (41) corresponding to each other are recessed away from the other rake plate (41) to form a curved surface.

8. The kitchen waste sorting device according to any one of claims 1-7, characterized in that the stirring shaft (2) is provided with a plurality of collars (8) uniformly distributed along the axial direction of the stirring shaft (2), and the rake plate (41) is connected to the collars (8) through a connecting shaft (42).

9. The kitchen waste sorting device according to any one of claims 1-7, characterized in that a spray pipe (14) is provided on the housing (1), and a nozzle (141) extending into the housing (1) and extending toward the screen drum (3) is connected to the spray pipe (14).

10. The kitchen waste sorting device according to any of claims 1-7, characterized in that the housing (1) is provided on a base frame (9).

Technical Field

The invention belongs to the technical field of organic solid waste treatment equipment, and particularly relates to a kitchen waste sorting device.

Background

Kitchen waste, commonly known as swill, is the most important one of food waste, including food residues generated in families, schools, canteens, catering industries and the like. It is a complex composition, mainly a mixture of oil, water, pericarp, vegetables, rice flour, fish, meat, bone, and waste tableware, plastics, paper towels, etc. The quantity of kitchen waste in China is very large and is in a rapid rising trend. Is easy to rot and deteriorate, emits foul smell and transmits bacteria and viruses.

The anaerobic digestion treatment of the kitchen waste is an environment-friendly method and a benefit-creating method, and can generate a large amount of methane. However, anaerobic digestion systems have high material requirements, requiring material particles to be as small as possible to facilitate anaerobic digestion, and low impurity rates in the material to reduce the possibility of plugging process piping.

Due to the complex components of the kitchen waste, the kitchen waste needs to be sorted before anaerobic digestion treatment, and the requirement on kitchen waste sorting equipment is high. Then, current kitchen garbage handles and adopts manual sorting or grid machine to carry out simple processing usually, leads to the easy winding of kitchen garbage and the problem of hanging the material, and the interior stink of sorter is scattered outward simultaneously, influences the interior air quality of workshop. Secondly, there is a need for improvement in that the sorting effect is poor, the screening efficiency is low, and the applicability is limited.

Disclosure of Invention

The invention aims to solve the technical problem of overcoming the defects of the prior art and provides a kitchen waste sorting device which improves the screening efficiency and reduces the phenomena of kitchen waste winding and hanging.

In order to solve the technical problems, the invention adopts the following technical scheme:

a kitchen waste sorting device comprises a shell, a stirring shaft capable of rotating in the circumferential direction and a screen cylinder capable of rotating in the circumferential direction relative to the stirring shaft, wherein the screen cylinder is positioned in the shell, two ends of the screen cylinder in the axial direction of the screen cylinder are provided with openings, the axial directions of the screen cylinder and the stirring shaft are parallel or coaxial, and the stirring shaft penetrates through the screen cylinder and penetrates through two end faces of the shell in the axial direction of the stirring shaft; the shell is provided with a feed inlet and a discharge outlet, the feed inlet and the discharge outlet are respectively arranged on two sides of the screen cylinder along the axial direction of the stirring shaft, the opening of the feed inlet is upward, and the opening of the discharge outlet is downward; a plurality of stirring mechanisms are arranged on the section of the stirring shaft in the shell, and the stirring mechanisms are arranged at intervals along the axial direction of the stirring shaft; every rabbling mechanism includes two harrow boards groups that set up relatively, and every harrow board group includes a plurality of harrow boards, and a plurality of harrow boards are the heliciform and arrange on the axis direction of (mixing) shaft, the projection of harrow board group on the cross-section of perpendicular to (mixing) shaft axis is fan-shaped, fan-shaped central angle < 180 °.

From this, the heliciform structure has the function with material propulsive forward, and the rake board group that sets up relatively can be raised and thrown the kitchen garbage in the removal at the (mixing) shaft rotation in-process, produces the stirring effect to kitchen garbage, makes kitchen garbage contact screen cloth structure many times to sieve many times, not only can improve screening efficiency, can also reduce kitchen garbage winding and hanging material phenomenon.

The principle of the invention for sorting the kitchen waste is as follows: the kitchen waste is driven by the stirring mechanism to move from the head part of the shell to the tail part of the shell in the rotating process of the stirring shaft, and meanwhile, the kitchen waste can be lifted and thrown off by the stirring mechanism. Meanwhile, the screen drum rotates around the axis of the screen drum, so that the kitchen waste smaller than the diameter of the screen hole is thrown out of the screen drum through the screen hole. And the kitchen waste which can not pass through the sieve holes of the sieve drum is gradually moved to the tail part of the shell under the pushing of the stirring mechanism and is discharged through the discharge hole.

As a further improvement of the above technical solution:

in order to further reduce the phenomena of kitchen waste winding and hanging, the central angle of the fan shape is not more than 90 degrees.

The shell is provided with a material collecting hopper with a downward opening, the material collecting hopper is arranged between the feeding hole and the discharging hole, and the screened materials after separation are collected.

In order to fix the screen drum and ensure that the screen drum can rotate around the axis of the screen drum, two sides of the axis direction of the screen drum are respectively provided with a slewing bearing, the outer ring of the slewing bearing is fixedly connected with the screen drum, and the inner ring of the slewing bearing is fixedly connected with the shell.

Mounting plates fixedly connected with the outer wall of the shell are respectively arranged on two sides of the screen cylinder along the axis direction, and the inner ring of the slewing bearing is fixedly connected with the mounting plates; one of the mounting plates is provided with a driving mechanism which is in transmission connection with the outer ring of the slewing bearing so as to drive the screen drum to rotate.

The two rake plates of the two opposite rake plate groups correspond one to one, and the two rake plates which correspond to each other are respectively arranged at two ends of the radial direction of the circular section which is vertical to the axis of the stirring shaft.

The opposite surfaces of the two corresponding rake plates are back to the other rake plate to form a curved surface, so that the functions of raising and forward propelling the kitchen waste by the stirring mechanism are further improved.

In order to conveniently replace the harrow plate, a plurality of lantern rings uniformly distributed along the axial direction of the stirring shaft are arranged on the stirring shaft, and the harrow plate is connected to the lantern rings through a connecting shaft.

The screen drum is characterized in that a water spraying pipe is arranged on the shell, and a nozzle which extends into the shell and extends towards the screen drum is communicated with the water spraying pipe. The setting of spray pipe is favorable to the organic matter in the kitchen garbage to be dissolved in high temperature aquatic on the one hand, improves the recycle of organic matter, and on the other hand, under the washing of high temperature water, can effectively wash grease and the material on the sealing shell wall to the collecting hopper, the mesh jam of reducible sieve section of thick bamboo.

The housing is arranged on an underframe for fixing the housing.

Compared with the prior art, the invention has the advantages that:

1. the kitchen waste sorting device provided by the invention is not easy to generate winding and hanging phenomena when the kitchen waste is screened, and has higher efficiency of screening the kitchen waste.

2. This kitchen garbage sorting facilities adopts totally enclosed structure, can prevent that the foul smell from loosing outward, effectively improves air quality in the workshop.

3. The rotating speed of the kitchen waste sorting equipment is adjustable, and requirements of different working conditions and particle sizes can be met according to material characteristics.

Drawings

Fig. 1 is a schematic perspective view of a kitchen waste sorting device according to an embodiment of the present invention.

Fig. 2 is a schematic side view of the kitchen waste sorting device according to the embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a kitchen waste sorting device in a front view according to an embodiment of the present invention.

Fig. 4 is a sectional view a-a of fig. 2.

Fig. 5 is a sectional view B-B of fig. 3.

Fig. 6 is a cross-sectional view C-C of fig. 3.

Fig. 7 is a cross-sectional view taken along line D-D of fig. 3.

Fig. 8 is an enlarged view of the structure at a in fig. 4.

Fig. 9 is a schematic perspective view of the rotary shaft raking device.

Fig. 10 is a schematic perspective view of a screen drum.

1. A housing; 11. a feed inlet; 12. a discharge port; 13. a collection hopper; 14. a water spray pipe; 141. a nozzle; 15. an end closing plate; 16. a connecting plate; 17. sealing and pressing strips; 18. mounting a plate; 19. a stink collecting port; 2. A stirring shaft; 3. a screen cylinder; 31. an end connecting disc; 32. a screen drum carrier; 33. a filter plate; 4. A rake board group; 41. raking a plate; 42. a connecting shaft; 5. a slewing bearing; 51. an outer ring; 52. an inner ring; 6. a drive device; 7. a drive mechanism; 71. a drive motor; 72. a drive gear; 8. a collar; 9. a chassis; 10. and (4) a water inlet pipe.

Detailed Description

The invention is further described below with reference to specific preferred embodiments, without thereby limiting the scope of protection of the invention.