CN219210580U

CN219210580U - Drum screen center collar hammer

Info

Publication number: CN219210580U
Application number: CN202223610542.XU
Authority: CN
Inventors: 夏国明; 宋景
Original assignee: Hunan Hengan Household Paper Co ltd
Current assignee: Hunan Hengan Household Paper Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-06-20
Anticipated expiration: 2032-12-30

Abstract

The utility model relates to the field of sorting equipment, in particular to a rotary screen center column ring hammer which comprises a rotary screen and a center rotary column arranged in the rotary screen, wherein the rotary screen comprises a frame, a roller and a rotary motor, a feed inlet and a discharge outlet are arranged on the roller, the roller is fixedly arranged on the frame, the roller comprises a first screening area, a second screening area and a third screening area, the rotary motor is fixedly arranged on the frame, the center rotary column is connected with the output end of the rotary motor, a stirring shaft is integrally formed on the center rotary column, a stirring plate is arranged at the tail end of the free end of the stirring shaft and is abutted against the inner circumferential surface of the roller, and the stirring shaft is provided with a ring hammer for knocking, so that the technical problem that the existing rotary screen is difficult to disperse and separate lump coal dust in the coal separation process is solved.

Description

Drum screen center collar hammer

Technical Field

The utility model relates to the field of sorting equipment, in particular to a cylindrical ring hammer for a rotary screen center.

Background

The drum screen is a machine which is widely applied in the sorting technology, garbage sorting is controlled by controlling the particle size of particles, and the sorting precision is high. The cylinder of the drum screen is generally divided into a plurality of sections, and the screen holes are arranged from small to large according to the specific situation, and the aperture diameters of the screen holes on each section are the same.

The rotary screen mainly comprises a motor, a speed reducer, a rotary device, a frame, a sealing cover and a feed inlet and a discharge outlet.

The roller device is obliquely arranged on the frame. The motor is connected with the roller device through a coupler through a speed reducer, and drives the roller device to rotate around the axis of the motor. When the materials enter the roller device, the materials on the screen surface are overturned and rolled due to the inclination and rotation of the roller device, so that qualified materials (undersize products) are discharged through a discharge port at the rear end of the roller, and unqualified materials (oversize products) are discharged through a discharge port at the tail of the roller. Because the materials turn over and roll in the roller, the materials clamped in the sieve holes can be ejected out, and the sieve holes are prevented from being blocked. The principle structures of the roller sand screening machine, the roller screening machine and the roller screen are almost the same, and the understanding and the calling of the roller sand screening machine and the roller screening machine are different. The drum screen is mainly applicable to the following scenes:

1. the method is used for grading the stones in the size and separating out the soil and the stone powder in the stone factory.

2. The method is used for separating sand in the sand field.

3. The coal industry is used for separating lump coal from pulverized coal and washing coal (a component part of coal washing machinery).

4. The chemical industry and mineral separation industry are used for classifying and separating powdery substances from large and small blocks.

The weather in the south is moist and the rainwater is more, most of the coals in the coal shed are very moist, so that coal briquette coal dust is easy to cause lump formation and difficult to disperse, and the blockage is caused in the drum screen.

The utility model patent with the Chinese patent application number of 201910664397.7 discloses a rotary screen, which comprises two oppositely arranged screen cylinder mounting seats, a cylindrical screen cylinder is arranged between the two screen cylinder mounting seats, a plurality of strip-shaped inlet scraping blades which are uniformly distributed circumferentially are arranged on the inner wall of the inlet end of the screen cylinder, a plurality of strip-shaped outlet scraping blades which are uniformly distributed circumferentially are arranged on the inner wall of the outlet end of the screen cylinder, the inlet scraping blades and the outlet scraping blades respectively extend spirally along the inner wall of the screen cylinder, the rotation directions of the inlet scraping blades and the outlet scraping blades are opposite, one side of the inlet scraping blades and one side of the outlet scraping blades are tightly attached to the inner wall of the screen cylinder, the other side of the inlet scraping blades and the front end and the rear end of the suspended side of the outlet scraping blades are suspended in suspension, and the front end and the rear end of the suspended side of the inlet scraping blades and the outlet scraping blades are twisted in opposite directions. According to the utility model, the inlet scraping blade and the outlet scraping blade are additionally arranged, so that the fall of the canna edulis ker in the rotating process along with the screen drum can be increased, and the soil on the surface of the canna edulis ker is easier to separate; effectively control the mud removing time, and make the mud removing effect better. However, the technical scheme provided by the utility model is difficult to adapt to separation of coal fines of coal blocks, and meanwhile, aiming at lump formation of the coal fines, the existing trommel structure is not well solved.

Disclosure of Invention

Therefore, aiming at the problems, the utility model provides a cylindrical ring hammer at the center of a rotary screen, which solves the technical problem that the conventional rotary screen is difficult to disperse lump coal dust in the coal separation process so as to separate.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a drum sieve center collar hammer, includes the drum sieve and set up in center column of rotation in the drum sieve, the drum sieve includes frame, cylinder and rotating electrical machines, be provided with feed inlet and discharge gate on the cylinder, the cylinder fixed set up in the frame, the central axis of cylinder is 5 ~ 10 with horizontal plane contained angle, the cylinder includes first sieve division, second sieve division and third sieve division, be provided with first sieve division pore on the first sieve division, be provided with the second sieve division pore on the second sieve division, be provided with the third sieve division pore on the third sieve division pore, center column of rotation with rotating electrical machines's output is connected, center column of rotation extends into in the cylinder, integrated into one piece is provided with the (mixing) shaft on the center column of rotation, the free end of (mixing) shaft is provided with the driving plate, the driving plate supports and leans on the interior circumference surface of cylinder, be provided with on the (mixing) shaft and beat the collar hammer.

Further, the roller is sleeved with an annular shield, and the vertical section of the annular shield is of a semi-closed annular structure.

Further, the stirring shaft is perpendicular to the central rotating column.

Further, the aperture of the first sieve opening is larger than the aperture of the second sieve opening, and the aperture of the second sieve opening is larger than the aperture of the third sieve opening.

Further, the material stirring plate comprises a first material stirring plate, a second material stirring plate and a third material stirring plate, wherein the first material stirring plate is arranged in the first screening area, the second material stirring plate is arranged in the second screening area, and the third material stirring plate is arranged in the third screening area.

Further, the knocking ring hammer is integrally formed on the stirring shaft and comprises a supporting shaft and a hammer body, the hammer body is arranged at the tail end of the free end of the supporting shaft, and the hammer body is of a spherical structure.

By adopting the technical scheme, the utility model has the beneficial effects that:

1. according to the utility model, the drum is divided into the first screening area, the second screening area and the third screening area, so that pulverized coal and lump coal can be screened for three times, and raw material coal is divided into pulverized coal with three different particle sizes and final lump coal; through being provided with on the (mixing) shaft and strike the ring hammer, strike ring hammer and (mixing) shaft interaction, the rotatory rotation of center column of revolution drives down the lump coal that probably exists in the raw materials coal and breaks up.

2. The cylinder overcoat is equipped with an annular guard shield, the vertical cross-section of annular guard shield is semi-closed annular structure, and annular guard shield makes the cylinder form semi-closed structure, has avoided the center column of revolution to rotate and to stir the in-process and can take the material and then fly away from all around to cause the pollution in the air, and annular guard shield makes the export of each screening zone of cylinder concentrate under.

3. The stirring shaft is mutually perpendicular to the central rotating column, stirring efficiency can be improved, stirring pressure received by the stirring shaft is small, and service life is prolonged.

4. The aperture of the first sieve separation hole is larger than that of the second sieve separation hole, the aperture of the second sieve separation hole is larger than that of the third sieve separation hole, and the raw coal can be screened layer by layer to separate coal dust with different original particle sizes from doped coal pieces.

5. The material stirring plate comprises a first material stirring plate, a second material stirring plate and a third material stirring plate, wherein the first material stirring plate is arranged in the first screening area, the second material stirring plate is arranged in the second screening area, the third material stirring plate is arranged in the third screening area, and the independent material stirring plates are arranged in each screening area, so that the pulverized coal stirring and scattering can be ensured to be more uniform.

6. The utility model discloses a stirring device, including stirring axle, beating ring hammer integrated into one piece, beat ring hammer set up in on the stirring axle, beat ring hammer includes back shaft and hammer block, the back shaft with center column of rotation is parallel to each other, the hammer block set up in the free end of back shaft is terminal, the hammer block is spherical structure, has promoted the efficiency of beating the crushing to lump coal and lump coal powder.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic perspective view of the present utility model (annular shield);

FIG. 3 is a schematic view of the frontal structure of the present utility model (annular shield);

FIG. 4 is a schematic view (front view) of the internal structure of the present utility model;

fig. 5 is a schematic view (side view) of the internal structure of the present utility model.

Detailed Description

The utility model will now be further described with reference to the drawings and detailed description.

Referring to fig. 1 to 5, a drum screen center collar hammer is provided in this embodiment, including a drum screen and a center rotary column 5 disposed in the drum screen, the drum screen includes a frame 1, a drum 2 and a rotary motor 6, a feed port 21 and a discharge port 22 are disposed on the drum 2, a feed hopper 7 is disposed on the feed port 21, the drum 2 is fixedly disposed on the frame 1, an included angle between a central axis of the drum 2 and a horizontal plane is 10 °, and in practical application, the drum 2 can be adjusted within a range of 5 ° -10 °, such as 5 ° or 8 °, the drum screen 2 includes a first screening area 23, a second screening area 24 and a third screening area 25, a first screening area 232 is disposed on the first screening area 23, a second screening area 242 is disposed on the second screening area 24, a third screening area 252 is disposed on the third screening area 25, the aperture of the first sub-sieve aperture 232 is larger than the aperture of the second sub-sieve aperture 242, the aperture of the second sub-sieve aperture 242 is larger than the aperture of the third sub-sieve aperture 252, specifically the aperture of the first sub-sieve aperture 232 is 5cm, the aperture of the second sub-sieve aperture 242 is 3cm, the aperture of the third sub-sieve aperture 252 is 1cm, the central rotating column 5 is connected with the output end of the rotating motor 6, the central rotating column 5 extends into the drum 2, the central rotating column 5 is integrally provided with a stirring shaft 51, the stirring shaft 51 is mutually perpendicular to the central rotating column 5, the free end of the stirring shaft 51 is provided with a stirring plate, the stirring plate is abutted against the inner circumferential surface of the drum 2, the stirring shaft 51 is provided with a beating ring hammer 8, the beating ring hammer 8 is integrally arranged on the stirring shaft 51, the beating ring hammer 8 comprises a supporting shaft 81 and a hammer body 82, the hammer body 82 is arranged at the tail end of the free end of the supporting shaft 81, the hammer body 82 is of a spherical structure, the material stirring plates comprise a first material stirring plate 231, a second material stirring plate 241 and a third material stirring plate 251, the first material stirring plate 231 is arranged in the first screening area 23, the second material stirring plate 241 is arranged in the second screening area 24, the third material stirring plate 251 is arranged in the third screening area 25, an annular shield 4 is sleeved outside the roller 2, and the vertical section of the annular shield 4 is of a semi-closed annular structure.

The roller 2 is cylindrical, and in practical production application, a horizontal truncated cone-shaped structure can be adopted, namely, the left cross section of the roller 2 is smaller than the right cross section, specifically, the left cross section area is three fifths of the right cross section area, the difference value of the left cross section area and the right cross section area can be changed according to requirements, and only the fact that the left cross section area of the roller 2 is smaller than the right cross section area is needed.

While the utility model has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. The utility model provides a drum sieve center collar hammer which characterized in that: including the drum sieve with set up in central column of revolution in the drum sieve, the drum sieve includes frame, cylinder and rotating electrical machines, be provided with feed inlet and discharge gate on the cylinder, the cylinder fixed set up in the frame, the central axis and the horizontal angle of cylinder are 5 ~ 10, the cylinder includes first sieve subregion, second sieve subregion and third sieve subregion, be provided with first sieve pore on the first sieve subregion, be provided with second sieve pore on the second sieve subregion, be provided with third sieve pore on the third sieve subregion, the center column of revolution with rotating electrical machines's output is connected, the center column of revolution extends into in the cylinder, integrated into one piece is provided with the (mixing) shaft on the center column of revolution, the free end of (mixing) shaft is provided with the stirring board, the stirring board supports and leans on the interior circumference surface of cylinder, be provided with on the stirring shaft and strike the ring hammer.

2. A trommel center collar hammer as claimed in claim 1 wherein: the roller is sleeved with an annular shield, and the vertical section of the annular shield is of a semi-closed annular structure.

3. A trommel center collar hammer as claimed in claim 1 wherein: the stirring shaft is perpendicular to the central rotating column.

4. A trommel center collar hammer as claimed in claim 1 wherein: the aperture of the first sieve opening is larger than the aperture of the second sieve opening, and the aperture of the second sieve opening is larger than the aperture of the third sieve opening.

5. A trommel center collar hammer as claimed in any one of claims 1 to 4 wherein: the material stirring plate comprises a first material stirring plate, a second material stirring plate and a third material stirring plate, wherein the first material stirring plate is arranged in the first screening area, the second material stirring plate is arranged in the second screening area, and the third material stirring plate is arranged in the third screening area.

6. A trommel center collar hammer as claimed in claim 5 wherein: the knocking ring hammer is integrally formed on the stirring shaft and comprises a supporting shaft and a hammer body, the hammer body is arranged at the tail end of the free end of the supporting shaft, and the hammer body is of a spherical structure.