阅读说明：本技术 一种餐厨垃圾筛分装置 (Kitchen garbage screening plant ) 是由 孔垂明 王姣姣 曹小刚 杨元晖 于 2021-08-13 设计创作，主要内容包括：本发明公开一种餐厨垃圾筛分装置,设有入料输送螺旋、筛分机构、筛下物输送螺旋和筛上物输送螺旋；入料输送螺旋的出料端处于筛分机构的进料端；筛分机构包括筛分壳体、滚筒筛、导向叶片和破碎刀片,滚筒筛的端部连接筛分壳体,滚筒筛的表面设有筛分孔；导向叶片布置在滚筒筛的内部,破碎刀片沿滚筒筛的内部呈环状分布；筛下物输送螺旋设置在筛分机构的下方,筛下物输送螺旋用于对滚筒筛的筛下物进行输送；筛上物输送螺旋设置在筛分机构的出料端外侧,筛上物输送螺旋用于对滚筒筛的筛上物进行输送。本发明能够充分对筛分过程中的垃圾进行破碎,减少和避免卡滞,降低设备故障率,增加可利用的筛下物,提高垃圾处理项目的收益。(The invention discloses a kitchen waste screening device which is provided with a feeding conveying screw, a screening mechanism, a screen underflow conveying screw and a screen overflow conveying screw; the discharge end of the feeding conveying screw is positioned at the feed end of the screening mechanism; the screening mechanism comprises a screening shell, a rotary screen, guide blades and crushing blades, the end part of the rotary screen is connected with the screening shell, and screening holes are formed in the surface of the rotary screen; the guide blades are arranged inside the drum screen, and the crushing blades are annularly distributed along the inside of the drum screen; the undersize conveying screw is arranged below the screening mechanism and used for conveying undersize of the drum screen; the oversize material conveying screw is arranged outside the discharge end of the screening mechanism and is used for conveying oversize materials of the drum screen. The invention can fully crush the garbage in the screening process, reduce and avoid the clamping stagnation, reduce the failure rate of equipment, increase the available undersize materials and improve the income of garbage disposal projects.)

1. A kitchen waste screening device is characterized by comprising a feeding conveying screw (1), a screening mechanism (2), a screen underflow conveying screw (3) and a screen overflow conveying screw (4); the discharge end of the feeding conveying screw (1) is positioned at the feed end of the screening mechanism (2); the screening mechanism (2) comprises a screening shell (5), a rotary screen (6), a guide blade (7) and a crushing blade (8), the end part of the rotary screen (6) is connected with the screening shell (5), and screening holes (9) are formed in the surface of the rotary screen (6); the guide blades (7) are arranged inside the drum screen (6), and the crushing blades (8) are annularly distributed along the inside of the drum screen (6);

the undersize conveying screw (3) is arranged below the screening mechanism (2), and the undersize conveying screw (3) is used for conveying undersize of the drum screen (6); the oversize material conveying screw (4) is arranged on the outer side of the discharge end of the screening mechanism (2), and the oversize material conveying screw (4) is used for conveying oversize materials of the rotary screen (6).

2. The kitchen waste screening device according to claim 1, characterized in that a first support frame (10) is arranged at the lower end of the feeding conveying screw (1), the feeding conveying screw (1) is supported by the first support frame (10), and the feeding end of the feeding conveying screw (1) is lower than the discharging end of the feeding conveying screw (1).

3. The kitchen waste screening device according to claim 1, wherein the screening mechanism (2) further comprises a screening driving motor (11), the screening driving motor (11) is connected with a driving shaft of the drum screen (6), and a bearing is arranged at a joint of the driving shaft at the end of the drum screen (6) and the screening shell (5).

4. A kitchen waste screening device according to claim 1, characterized in that said guide blades (7) are spirally distributed inside said drum screen (6), and the end of said crushing blade (8) extends out of said guide blades (7).

5. The kitchen waste screening device according to claim 4, characterized in that the crushing blades (8) distributed in an annular shape are provided with a plurality of circles inside the rotary screen (6), and the rotary screens (6) of two adjacent circles are arranged in a staggered manner.

6. A kitchen waste screening device according to claim 5, characterized in that the number of the crushing blades (8) in each circle is eight, and the rotary screens (6) in two adjacent circles are rotated by 22.5 degrees in a staggered manner.

7. The kitchen waste screening device according to claim 1, characterized in that the discharge end of the feeding conveying screw (1) is located inside the feed end of the drum screen (6), and a working gap is reserved between the feeding conveying screw (1) and the drum screen (6).

8. A kitchen waste screening device according to claim 7, characterized in that the feed end of the trommel (6) is lower than the discharge end of the trommel (6).

9. The kitchen waste screening device according to claim 1, characterized in that the bottom of the screening housing (5) is communicated with the feed inlet of the undersize conveying screw (3);

the lower end of the undersize conveying screw (3) is provided with a second support frame (12), the undersize conveying screw (3) is supported by the second support frame (12), and undersize of the drum screen (6) is conveyed to a subsequent treatment system by the undersize conveying screw (3).

10. The kitchen waste screening device according to claim 1, characterized in that a third support frame (13) is arranged at the lower end of the oversize product conveying screw (4), the third support frame (13) supports the oversize product conveying screw (4), and the oversize product conveying screw (4) conveys oversize products of the drum screen (6) to a subsequent treatment system.

Technical Field

The invention belongs to the technical field of garbage treatment, and particularly relates to a kitchen garbage screening device.

Background

Kitchen and kitchen waste is generally waste generated in activities such as daily life and food processing, food service, unit catering and the like of residents, and comprises discarded vegetable leaves, leftovers, fruit peels, egg shells, tea residues, bones and the like, and the main sources of the kitchen and kitchen waste are household kitchens, restaurants, dining halls, markets and other industries related to food processing.

Traditional kitchen garbage preliminary screening equipment adopts the pendulum bob usually, because kitchen, kitchen are remained to be mingled with in the factory's rubbish often and are had bold, hard material, and these bold, hard material are difficult for carrying out the breakage, form the jamming easily between pendulum bob and screen cloth, cause equipment trouble, cause equipment to shut down and handle, influence refuse treatment efficiency. In addition, the amount of undersize materials is small in the conventional primary screening of kitchen waste, so that a lot of organic matter resources can be screened, and the organic matter resources cannot be effectively recycled, for example, the undersize materials are used as organic matter fertilizers, so that the waste of the resources is caused, and the income of a waste treatment project is influenced. A technical scheme for effectively crushing the kitchen waste and increasing the organic matter content of undersize materials in the screening process of the kitchen waste is urgently needed.

Disclosure of Invention

Therefore, the invention provides a kitchen waste screening device, which solves the problems that in the traditional kitchen waste screening process, jamming is easy to form to cause faults, and the organic quality of screened objects is low to cause resource waste.

In order to achieve the above purpose, the invention provides the following technical scheme: a kitchen waste screening device comprises a feeding conveying screw, a screening mechanism, an undersize conveying screw and an oversize conveying screw; the discharge end of the feeding conveying screw is positioned at the feed end of the screening mechanism; the screening mechanism comprises a screening shell, a rotary screen, guide blades and crushing blades, the end part of the rotary screen is connected with the screening shell, and screening holes are formed in the surface of the rotary screen; the guide blades are arranged inside the drum screen, and the crushing blades are annularly distributed along the inside of the drum screen;

the undersize conveying screw is arranged below the screening mechanism and used for conveying undersize of the drum screen; the oversize material conveying screw is arranged on the outer side of the discharge end of the screening mechanism, and the oversize material conveying screw is used for conveying oversize materials of the drum screen.

As the preferable scheme of the kitchen waste screening device, the lower end of the feeding conveying screw is provided with a first support frame, the feeding conveying screw is supported by the first support frame, and the feeding end of the feeding conveying screw is lower than the discharging end of the feeding conveying screw.

As the preferable scheme of the kitchen waste screening device, the screening mechanism further comprises a screening driving motor, the screening driving motor is connected with a driving shaft of the rotary screen, and a bearing is arranged at the joint of the driving shaft at the end part of the rotary screen and the screening shell.

As a preferable scheme of the kitchen waste screening device, the guide blades are spirally distributed in the rotary screen, and the end parts of the crushing blades extend out of the guide blades.

As the preferable scheme of the kitchen waste screening device, the crushing blades which are distributed in an annular mode are arranged in the rotary screen in a plurality of circles, and the rotary screens of two adjacent circles are arranged in a staggered mode.

As the preferred scheme of the kitchen waste screening device, the number of the crushing blades in each circle is eight, and the rotary screens in two adjacent circles rotate at 22.5 degrees in a staggered manner.

As the preferable scheme of the kitchen waste screening device, the discharge end of the feeding conveying screw is positioned inside the feed end of the drum screen, and a working gap is reserved between the feeding conveying screw and the drum screen.

As the preferable scheme of the kitchen waste screening device, the feeding end of the rotary screen is lower than the discharging end of the rotary screen.

As a preferable scheme of the kitchen waste screening device, the bottom of the screening shell is communicated with a feed inlet of the undersize conveying screw;

the lower end of the undersize conveying screw is provided with a second support frame, the second support frame supports the undersize conveying screw, and the undersize conveying screw conveys undersize of the drum screen to a subsequent processing system.

As a preferable scheme of the kitchen waste screening device, a third support frame is arranged at the lower end of the oversize material conveying spiral and supports the oversize material conveying spiral, and the oversize material conveying spiral conveys oversize materials of the drum screen to a subsequent treatment system.

The invention has the following advantages: the device is provided with a feeding conveying screw, a screening mechanism, a screen underflow conveying screw and a screen overflow conveying screw; the discharge end of the feeding conveying screw is positioned at the feed end of the screening mechanism; the screening mechanism comprises a screening shell, a rotary screen, guide blades and crushing blades, the end part of the rotary screen is connected with the screening shell, and screening holes are formed in the surface of the rotary screen; the guide blades are arranged inside the drum screen, and the crushing blades are annularly distributed along the inside of the drum screen; the undersize conveying screw is arranged below the screening mechanism and used for conveying undersize of the drum screen; the oversize material conveying screw is arranged outside the discharge end of the screening mechanism and is used for conveying oversize materials of the drum screen. The invention can fully crush the garbage in the screening process, reduce and avoid the clamping stagnation, reduce the failure rate of equipment, increase the available undersize materials and improve the income of garbage disposal projects.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

Fig. 1 is a schematic structural diagram of a kitchen waste screening device provided in an embodiment of the present invention;

fig. 2 is a schematic relationship diagram of a guide blade and a crushing blade in the kitchen waste screening device provided in the embodiment of the present invention.

In the figure, 1, a feeding conveying screw; 2. a screening mechanism; 3. undersize conveying screws; 4. an oversize conveyor screw; 5. a screening housing; 6. a drum screen; 7. a guide blade; 8. crushing the blade; 9. screening holes; 10. a first support frame; 11. a screening drive motor; 12. a second support frame; 13. and a third support frame.

Detailed Description

The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 and 2, and fig. 1 and 2, a kitchen waste screening device is provided, which comprises a feeding conveying screw 1, a screening mechanism 2, a screen underflow conveying screw 3 and a screen overflow conveying screw 4; the discharge end of the feeding conveying screw 1 is positioned at the feed end of the screening mechanism 2; the screening mechanism 2 comprises a screening shell 5, a drum screen 6, guide blades 7 and crushing blades 8, the end part of the drum screen 6 is connected with the screening shell 5, and screening holes 9 are formed in the surface of the drum screen 6; the guide blades 7 are arranged inside the drum screen 6, and the crushing blades 8 are annularly distributed along the inside of the drum screen 6;

the undersize conveying screw 3 is arranged below the screening mechanism 2, and the undersize conveying screw 3 is used for conveying undersize of the drum screen 6; the oversize material conveying screw 4 is arranged on the outer side of the discharge end of the screening mechanism 2, and the oversize material conveying screw 4 is used for conveying oversize materials of the drum screen 6.

In an embodiment of the kitchen waste screening device, a first support frame 10 is arranged at the lower end of the feeding conveying screw 1, the feeding conveying screw 1 is supported by the first support frame 10, and the feeding end of the feeding conveying screw 1 is lower than the discharging end of the feeding conveying screw 1.

Specifically, the feeding conveying screw 1 is supported by the first support frame 10, the feeding end of the feeding conveying screw 1 is butted with the kitchen waste after pretreatment, for example, the kitchen waste after bag breaking or preliminary crushing is performed, the feeding end of the feeding conveying screw 1 is lower, and the butt joint of the front end of the feeding conveying screw 1 with the kitchen waste pretreatment equipment is facilitated.

In an embodiment of the kitchen waste screening device, the screening mechanism 2 further includes a screening driving motor 11, the screening driving motor 11 is connected to a driving shaft of the drum screen 6, and a bearing is disposed at a connection position of an end driving shaft of the drum screen 6 and the screening housing 5.

Specifically, screening driving motor 11 can be arranged at the end of screening housing 5, and screening driving motor 11 drives the drive shaft through trommel 6, realizes trommel 6's rotation action, and the drive shaft supports through the bearing. The rotary process of the drum screen 6 realizes the screening treatment of the internal garbage, obtains oversize materials in the drum screen 6 and undersize materials removed from the lower part of the drum screen 6, and the undersize materials are mostly organic matters and can be recycled.

In one embodiment of the kitchen waste screening device, the guide blades 7 are spirally distributed inside the drum screen 6, and the end parts of the crushing blades 8 extend out of the guide blades 7. The crushing blades 8 distributed in an annular shape are arranged in the rotary screen 6 in a plurality of circles, and the rotary screens 6 in two adjacent circles are arranged in a staggered mode. Optimally, the number of the crushing blades 8 in each circle is eight, the rotary screens 6 in two adjacent circles rotate by 22.5 degrees in a staggered mode, the crushing blades 8 can be guaranteed to uniformly cut the garbage, and the crushing blades 8 can be arranged in the rotary screens 6 to cut large garbage.

Specifically, the spiral design of the guide vane 7, namely from the feed end of the drum screen 6 to the discharge end of the drum screen 6, the guide vane 7 is in spiral trend along the inner wall of the drum screen 6, so that in the process of crushing the garbage by the crushing blade 8, the garbage is assisted by the guide vane 7 to advance from the feed end to the discharge end.

Specifically, the feed end of the trommel 6 is lower than the discharge end of the trommel 6. The organic matters in the drum screen 6 can be screened fully, and the content of undersize matters of the drum screen 6 is increased.

In this embodiment, the bottom of the sieving shell 5 is communicated with the feed inlet of the undersize conveying screw 3; undersize of the drum screen 6 enters the undersize conveying screw 3 from a feed inlet of the undersize conveying screw 3. The lower end of the undersize conveying screw 3 is provided with a second support frame 12, the second support frame 12 supports the undersize conveying screw 3, and the undersize conveying screw 3 conveys undersize of the drum screen 6 to a subsequent processing system. Subsequent treatment systems, such as organic matter recycling systems, may also be shipped for treatment by other enterprises having processing capabilities.

Specifically, the lower end of the oversize material conveying screw 4 is provided with a third support frame 13, the third support frame 13 supports the oversize material conveying screw 4, and the oversize material conveying screw 4 conveys oversize materials of the drum screen 6 to a subsequent processing system. The rotary screen 6 sorts out large materials to enter the oversize material conveying screw 4 in the rotating process, soft and fragile garbage is reduced by the scratching action of the crushing blade 8, and the scratched garbage enters the rear-end treatment section through the screen of the rotary screen 6.

In this embodiment, the discharge end of the feeding conveying screw 1 is located inside the feed end of the drum screen 6, and a working gap is reserved between the feeding conveying screw 1 and the drum screen 6. The working gap avoids the interference of the rotary process of the drum screen 6 on the discharging of the feeding conveying screw 1.

In summary, the invention is provided with a feeding conveying screw 1, a screening mechanism 2, an undersize conveying screw 3 and an oversize conveying screw 4; the discharge end of the feeding conveying screw 1 is positioned at the feed end of the screening mechanism 2; the screening mechanism 2 comprises a screening shell 5, a rotary screen 6, guide blades 7 and crushing blades 8, the end part of the rotary screen 6 is connected with the screening shell 5, and screening holes 9 are formed in the surface of the rotary screen 6; the guide blades 7 are arranged inside the drum screen 6, and the crushing blades 8 are annularly distributed along the inside of the drum screen 6; the undersize conveying screw 3 is arranged below the screening mechanism 2, and the undersize conveying screw 3 is used for conveying undersize of the drum screen 6; oversize material conveying screw 4 sets up in the discharge end outside of screening mechanism 2, and oversize material conveying screw 4 is used for carrying the oversize material of drum sieve 6. According to the kitchen waste bag-breaking device, the feeding conveying screw 1 is supported by the first support frame 10, the feeding end of the feeding conveying screw 1 is in butt joint with the kitchen waste after pretreatment, such as the kitchen waste after bag breaking or preliminary breaking, the feeding end of the feeding conveying screw 1 is lower, and the kitchen waste bag-breaking device is beneficial to butt joint with the waste pretreatment equipment at the front end. Screening driving motor 11 can be arranged at the end of screening housing 5, and screening driving motor 11 drives the drive shaft through trommel 6, realizes the rotary motion of trommel 6, and the drive shaft supports through the bearing. The rotary process of the drum screen 6 realizes the screening treatment of the internal garbage, obtains oversize materials in the drum screen 6 and undersize materials removed from the lower part of the drum screen 6, and the undersize materials are mostly organic matters and can be recycled. The spiral design of guide vane 7, be from the feed end of drum sieve 6 to the discharge end of drum sieve 6 promptly, guide vane 7 is the spiral helicine trend along the inner wall of drum sieve 6 to in-process at crushing blade 8 to rubbish broken, advance from the feed end to the discharge end through guide vane 7 supplementary rubbish. The feeding end of the drum screen 6 is lower than the discharging end of the drum screen 6, so that organic matters in the drum screen 6 can be screened fully, and the content of undersize matters of the drum screen 6 is increased. The rotary screen 6 sorts out large materials to enter the oversize material conveying screw 4 in the rotating process, soft and fragile garbage is reduced by the scratching action of the crushing blade 8, and the scratched garbage enters the rear-end treatment section through the screen of the rotary screen 6. The invention can fully crush the garbage in the screening process, reduce and avoid the clamping stagnation, reduce the failure rate of equipment, increase the available undersize materials and improve the income of garbage disposal projects.

Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.