CN113967583A

CN113967583A - Drum screen for stale domestic garbage

Info

Publication number: CN113967583A
Application number: CN202111389178.6A
Authority: CN
Inventors: 吴林峰; 付有发; 宋建东; 徐亮; 张德敏
Original assignee: China Construction Fourth Bureau Civil Engineering Co Ltd
Current assignee: China Construction Fourth Bureau Civil Engineering Co Ltd
Priority date: 2021-11-22
Filing date: 2021-11-22
Publication date: 2022-01-25

Abstract

The invention discloses a drum screen for stale domestic garbage, which relates to the field of stale garbage treatment and solves the problem of poor effect of screening stale garbage by the existing drum screen, and the key points of the technical scheme are as follows: the drum screen for the aged household garbage comprises a mounting frame, a drum body and a support, wherein the support is connected with the mounting frame, the drum body is arranged on the mounting frame, the drum body is provided with a feeding end and a discharging end, the drum body can rotate along an axis, a screen hole is formed in the drum body, and a bag breaking cutter and a material pushing tooth are arranged on the inner surface of the drum body. The purposes of breaking bags, cutting materials and dividing caked garbage are achieved, and the screening effect of the drum screen is further improved.

Description

Drum screen for stale domestic garbage

Technical Field

The invention relates to garbage treatment equipment, in particular to a drum screen for stale household garbage.

Background

The aged domestic garbage is also called mineral garbage, and refers to municipal domestic garbage which is buried or stacked for many years, and the buried or stacked garbage not only causes serious environmental pollution, but also occupies a lot of land, and wastes land resources. Therefore, the treatment of the stale domestic garbage is imperative. Since stale refuse is essentially a household waste, in the course of life we will often discard refuse in plastic bags which are subsequently transferred to landfills or dumps. Therefore, the stale domestic garbage contains a large amount of plastic bagged garbage. Some of the wastes are inconvenient to screen and process under the action of long-term sunlight or microorganisms. The trommel screen is a mechanical sorting device which uses a rotary drum body to classify the garbage according to the particle size. However, some existing trommel screens are provided with a bag breaking device to break the bags of the garbage, and the garbage is squeezed and collided with each other to separate the garbage from the bags of the garbage, but the trommel screens are not capable of dealing with the caked garbage in the aged household garbage, so that the trommel screens more suitable for the aged garbage treatment are needed to be provided.

Disclosure of Invention

The invention aims to provide a drum sieve for stale domestic garbage, which achieves the purposes of breaking bags, scratching bags and separating caked garbage.

The technical purpose of the invention is realized by the following technical scheme: the utility model provides an old and useless domestic waste drum sieve, includes mounting bracket, barrel and support, and the support is connected with the mounting bracket, and the barrel sets up on the mounting bracket, the barrel has feed end and discharge end, the barrel can be followed the axis and rotated, is provided with sieve mesh, characterized by on the barrel: the inner surface of the cylinder body is provided with a bag breaking cutter and a material poking tooth.

After the garbage enters the drum screen, the garbage can move upwards under the driving of the drum screen, finally falls under the action of gravity and contacts with the knife breaking bag, the knife breaking bag cuts the garbage, and under the action of gravity and other garbage, the garbage in the garbage bag leaves the plastic bag. The scattered garbage is screened out of the roller through the screen holes, and the blocked garbage continues to move in the barrel and is separated under the action of the material scraping teeth. By the scheme, the purposes of breaking, scratching and separating the bagged stale domestic garbage can be achieved.

Furthermore, the bag breaking knives and the material scratching teeth are distributed on the inner wall in a staggered mode along the axial direction; the bag breaking cutters and the material scratching teeth are distributed on the inner wall in a staggered mode along the circumferential direction.

By adopting the scheme, the garbage can move in any direction in a staggered and spaced mode to encounter the bag breaking cutter and the material scraping teeth, and a better powder effect is achieved under the effect of the bag breaking cutter and the material scraping teeth which are repeated together.

Furthermore, the material marking teeth are in a sawtooth shape; the tooth tips of the material scraping teeth point to the moving direction of the roller.

The material cutting teeth are arranged to be saw-toothed, and the caking garbage can be better separated by mainly utilizing the principle that the material cutting is easier to perform than the material cutting of the saw-toothed shape. The tooth tips point to the moving direction of the roller, and are mainly used for forming a larger attack angle with the garbage so that the garbage is fully contacted with the material scraping teeth.

Furthermore, the bag breaking knife is in a triangular cone shape, and the cone tip of the bag breaking knife points to the central axis direction of the cylinder body. The bag breaking knife is in a triangular cone shape, and is mainly used for ensuring that bagged garbage is not hung on the knife when the plastic bag is punctured, and the bag breaking knife is in the triangular cone shape, so that the plastic bag is easier to cut open on one hand, and the bottom area is larger on the other hand, so that larger holes of the garbage bag can be formed, and the garbage can be conveniently sprinkled out of the plastic bag.

Furthermore, the lifting device also comprises a lifting plate, wherein the lifting plate is fixed on the inner wall of the cylinder and is parallel to the axis of the cylinder.

Through setting up the lifting plate, can let rubbish fall again after certain height, increase the potential energy, make rubbish break the bag more easily, make caking rubbish scratch more easily.

Further, the barrel contains barrel holder and sieve, the sieve is circular-arc, and detachable is fixed in on the barrel holder, be provided with the sieve mesh on the sieve.

Set up the sieve into detachable one side, be convenient for change the sieve of damage, on the other hand combines the characteristic of the old rotten rubbish in different areas, changes the sieve of different specification sieve meshes for the suitability of device is stronger.

Further, the barrel is divided into a barrel section and a barrel section, the barrel section is close to the feeding end, the barrel section is close to the discharging end, the mesh of the screen in the barrel section is circular, and the mesh in the barrel section is oval.

The drum body is provided with two sections of different types of sieve holes, can be used for sieving garbage with different shapes, and increases the application range of the drum sieve.

Further, the feed end of barrel is higher than the discharge end.

Furthermore, the barrel and the horizontal plane form an included angle of 5-8 degrees.

Through the arrangement, the garbage can move downwards under the action of gravity, and automatic feeding and discharging of the equipment are realized.

Further, still include and walk the platform, walk the platform and set up on the mounting bracket.

According to the invention, by additionally arranging the material scraping teeth, the problem that the agglomerated parts in the stale household garbage cannot be separated in the prior art is solved. The drum screen has more ideal effect in the screening treatment process of the stale household garbage.

Drawings

FIG. 1 is a schematic view of an example apparatus

FIG. 2 is a left side view of the embodiment of FIG. 1

FIG. 3 is a schematic view of the movement of the material in the cartridge

FIG. 4 is a partial schematic view of the barrel after deployment from the inside

In the figure: 11. a front bracket; 12. a rear bracket; 13. a mounting frame; 14. an escalator; 15. walking; 21. a motor; 22. a riding wheel; 23. supporting a rail; 3. a barrel; 31. a bag breaking knife; 32. material scratching teeth; 33. a lifting plate; 34. an axial skeleton; 35. a circular skeleton; 36. a sieve plate; 37. a feeding end; 38. and a discharge end.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected" to another element, it can be directly or indirectly connected to the other element, and the "connection" does not limit the fixed connection or the movable connection, and the specific connection mode should be determined according to the specific technical problem to be solved.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Example (b):

a drum screen for stale domestic garbage comprises a support, a mounting frame 13, a drum 3, a driving device, a walking board 15 and an escalator 14.

The support is connected with mounting bracket 13 for promote mounting bracket 13 height, and lift barrel 3 to a take the altitude, conveniently install the equipment that is used for connecing the material below barrel 3. The support is articulated with mounting bracket 13, and the support divide into fore-stock 11 and after-poppet 12, is provided with hydraulic push rod on the fore-stock 11, under hydraulic push rod's effect, fore-stock 11 can alternate length. Through the length that changes fore-stock 11, can change the gradient of mounting bracket 13, and then change the gradient of barrel 3, the gradient of barrel 3 is adjusted at 5 ~ 8 degrees within ranges in this embodiment. The staying time of the garbage in the barrel 3 can be changed by adjusting the inclination, so that the larger garbage agglomerated can have more sufficient time to act on the material scratching teeth 32, and the powder effect of the device on the larger garbage agglomerated is further increased.

The mounting frame 13 is a steel frame-shaped frame, and the lower end thereof is connected to the support. The mounting bracket 13 is used for mounting the cylinder 3. The mounting rack 13 is provided with supporting wheels 22, the preferred supporting wheels 22 are arranged at four corners of the square frame, supporting rails 23 are arranged at two rolling ends, the supporting rails 23 are circular and located at the edges of two ends of the cylinder 3, and grooves are formed in the supporting rails 23. When the barrel 3 is placed on the mounting frame 13, the riding wheels 22 on the mounting frame 13 are matched with the grooves on the roller riding rails 23, on one hand, the barrel 3 can be prevented from falling off when inclined, and on the other hand, the riding wheels 22 cannot obstruct the rotary motion of the barrel 3.

The driving device is arranged on the mounting frame 13 and comprises a motor 21, a speed reducer and a driving roller, the motor 21 is connected with the speed reducer, an output shaft of the speed reducer is connected with the driving roller, and the driving roller is in contact with the upper supporting rail 23 of the barrel 3. When the motor 21 is started, the driving roller drives the support rail 23 to rotate under the action of friction force, and further drives the barrel 3 to rotate. In other possible embodiments, a speed-adjustable reducer is adopted, and the rotation speed of the cylinder 3 is adjusted by adjusting the transmission ratio of the speed reducer, so that the rotation speed is accelerated when the material is less, and the rotation speed is reduced when the material is more. Therefore, the bag breaking and material scraping effects of the garbage can be better. Furthermore, an automatically controlled speed reducer can be adopted, and the rotating speed can be automatically adjusted by measuring the amount of the materials.

The barrel 3 has a feeding end 37 and a discharging end 38, the feeding end 37 is located at one end of the front support 11, and the feeding end 37 is higher than the discharging end 38, so that the whole barrel 3 is arranged in an inclined manner. The cylinder 3 comprises a cylinder frame and a sieve plate 36, wherein the cylinder frame is a framework part of the cylinder 3 and comprises a plurality of axial frameworks 34 and a circular framework 35. The axial skeleton 34 is connected, preferably detachably, to a circular skeleton 35. In other possible embodiments, the circular skeleton 35 is formed by splicing a plurality of arc-shaped skeletons; the axial framework 34 is formed by splicing multiple sections, and the arrangement is also convenient for replacing the framework. The axial framework 34 and the circular framework 35 form a plurality of mounting surfaces, the mounting surfaces are used for mounting the sieve plate 36, and the sieve plate 36 is detachably connected with the frameworks. The sieve plate 36 is provided with sieve holes. The barrel 3 can be divided into a plurality of sections, and screens with meshes of different specifications or shapes are arranged in different sections and used for screening garbage with different sizes or shapes. The device is divided into two sections, namely a barrel 3 section and a barrel 3 section. One section of the cylinder body 3 is close to the feeding end 37, and the sieve holes are circular; the second section of the cylinder 3 is close to the discharge end 38, and the sieve pores are elliptic.

The inner surface of the barrel 3 is provided with a bag breaking knife 31 and material cutting teeth 32, the bag breaking knife 31 and the material cutting teeth 32 are arranged on the barrel frame, and the bag breaking knife 31 and the material cutting teeth 32 are arranged at intervals in the axial direction; on the same circular framework 35, the bag breaking knife 31 and the material cutting teeth 32 are arranged at intervals. Thus, the bag breaking knives 31 and the material cutting teeth 32 are distributed on the inner wall in a staggered way along the axial direction; the bag breaking knives 31 and the material cutting teeth 32 are distributed on the inner wall in a staggered mode along the circumferential direction, and the using effect can be enhanced.

The bag breaking knife 31 is conical, can be triangular, conical or triangular conical, and by adopting the bag breaking knife 31 in the shape, on one hand, the bag can be better punctured, on the other hand, a larger hole can be formed on the bag due to the larger bottom, so that the garbage in the bag can be conveniently scattered, and meanwhile, the scratched plastic bag is not easy to hang on the bag breaking knife 31, so that the garbage can be conveniently fully rolled in the cylinder and can be fully scratched by contacting with other bag breaking knives 31. In this embodiment, a triangular bag breaking knife 31 is used. The bag breaking knife 31 has a mounting hole, and the bag breaking knife 31 is mounted on the circular frame 35 by a bolt. The triangular bag breaking knife 31 is mounted along the circular framework 35. Because the barrel 3 is the tilt state, broken bag sword 31 has the effect that blocks rubbish downstream during the use, avoids rubbish too fast to enter into the discharge gate, causes the screening insufficient. The point of the bag breaking knife 31 points to the axial direction, and when the garbage falls, the bag breaking knife 31 has a larger angle of attack with the garbage so as to better pierce the garbage bag.

The material cutting teeth 32 are saw-toothed, and the material cutting teeth 32 are arranged on the circular framework 35 along the direction of the circular framework 35. The use of the serrated scraping teeth 32 allows for better separation of agglomerated waste. The principle is similar to that of saw teeth which are easier to separate the wood plates relative to the blade. Meanwhile, the material scraping teeth 32 can also play a role in blocking garbage from moving downwards quickly. As shown in figure 4, the tips of the material dividing teeth 32 are oriented perpendicular to the axis, and during rolling rotation, the caked garbage is accumulated on the toothed side of the material dividing teeth 32 and is lifted upwards along with the caked garbage. During the lifting process, the saw teeth are pressed by other garbage and inserted into the caked garbage. When the gravity of the caked garbage is larger than the supporting force, the caked garbage slides down from the material dividing teeth 32 and is divided by the material dividing teeth 32 in the sliding process, so that the effect of dividing the caked garbage is achieved. In addition, when the caked garbage falls from a high place, the caked garbage also falls on the saw teeth to produce the scratching effect. In other possible embodiments, the tips of the scoring teeth 32 point in the axial direction. When the garbage moves to a certain degree along with the roller, the garbage can fall downwards, in the falling process, the caked garbage is inserted into the material scratching teeth 32 and moves upwards along with the material scratching teeth 32, and when the gravity is greater than the supporting force, the caked garbage slides down from the material scratching teeth 32, so that the effect of cutting the caked garbage is achieved. Of course, in other possible embodiments, a combination of the two tooth types can be adopted to achieve better segmentation effect.

The inner surface of the cylinder 3 is also provided with four lifting plates 33; viewed from the cross section of the cylinder 3 along the vertical direction and the axial line, the four lifting plates 33 are uniformly distributed on the circumference; the lifting plate 33 is mounted on the axial skeleton 34; the lifting plate 33 is used for bringing the garbage to a higher position, so that on one hand, a better turning effect is achieved, on the other hand, the garbage has higher potential energy, and after falling, the garbage is easier to be punctured by the bag breaking knife 31 or divided by the material dividing teeth 32.

In order to keep the mesh of the screen mesh in a smooth state, the high-pressure gas injection pipe is further arranged in the embodiment, and a plurality of gas injection ports are formed in the gas injection pipe. The air jet is towards the net surface, and the high-speed airflow in the air jet can blow out the garbage blocked in the net holes. The air injection pipe in the embodiment is arranged above the outer part of the cylinder 3 and blows the blocking garbage into the cylinder 3.

The embodiment is further provided with a walking platform 15, the walking platform 15 is used for equipment operation observation and equipment maintenance, the walking platform 15 is fixed on the mounting frame 13, and the walking platform 15 is further provided with a protective guard. In order to facilitate the people to get on and off, an escalator 14 is further arranged, one end of the escalator 14 is fixed on the ground, and the other end of the escalator is connected with a walking board 15.

The working principle is as follows:

after the equipment is started, the barrel 3 rolls under the drive of the driving motor 21, and stale garbage enters the barrel 3 from the feeding hole. Under the action of the lifting plate 33, the garbage is lifted upwards and falls downwards to a certain extent, and the bag breaking knife 31 is inserted after the garbage falls off, so that the plastic bag or the fabric bag can be punctured by the bag breaking knife 31; because the triangular bag-breaking knife 31 is wider at the bottom, the bag is provided with a larger notch, so that the garbage in the bag is scattered. The caked garbage is divided under the action of the material dividing teeth 32, so that the effect of thinning the garbage is achieved; the caked garbage can be screened out through the screen. The residual garbage is discharged through a discharge hole and enters the next procedure.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. The utility model provides an old and useless domestic waste drum sieve, includes mounting bracket (13), barrel (3) and support, and the support is connected with mounting bracket (13), and barrel (3) set up on mounting bracket (13), barrel (3) have feed end (37) and discharge end (38), barrel (3) can be followed the axis and rotated, are provided with sieve mesh, characterized by on barrel (3): the inner surface of the cylinder body (3) is provided with a bag breaking cutter (31) and a material poking tooth.

2. The stale domestic garbage drum sieve according to claim 1, which is characterized in that: the bag breaking knives (31) and the material cutting teeth (32) are distributed on the inner wall in a staggered mode along the axial direction; the bag breaking knives (31) and the material scratching teeth (32) are distributed on the inner wall in a staggered mode along the circumferential direction.

3. The stale domestic garbage rotary screen according to claim 2, wherein the material-cutting teeth (32) are saw-toothed; the tips of the material-dividing teeth (32) point in the direction of movement of the drum.

4. The drum sieve for stale domestic garbage according to claim 2, wherein the bag breaking knife (31) is in a triangular cone shape, and the cone tip of the bag breaking knife (31) points to the central axis direction of the drum body (3).

5. The stale domestic garbage drum sieve according to claim 1, which is characterized in that: the lifting plate (33) is fixed on the inner wall of the cylinder (3) and is parallel to the axis of the cylinder (3).

6. The stale domestic garbage drum sieve according to claim 1, which is characterized in that: the barrel (3) comprises a barrel frame and a sieve plate (36), the sieve plate (36) is arc-shaped and is detachably fixed on the barrel frame, and sieve holes are formed in the sieve plate (36).

7. The stale domestic garbage drum sieve according to claim 6, wherein: the barrel (3) is divided into a barrel (3) section and a barrel (3) section, the barrel (3) section is close to the feeding end (37), the barrel (3) section is close to the discharging end (38), the mesh of the screen in the barrel (3) section is circular, and the mesh in the barrel (3) section is oval.

8. The stale domestic garbage drum sieve according to claim 1, which is characterized in that: the feed end (37) of the cylinder body (3) is higher than the discharge end (38).

9. The stale domestic garbage drum sieve according to claim 1, which is characterized in that: the cylinder (3) and the horizontal plane form an included angle of 5-8 degrees,

10. the stale domestic garbage drum sieve according to claim 1, which is characterized in that: the walking board is characterized by further comprising a walking board (15), and the walking board (15) is arranged on the mounting frame (13).