CN216026065U - Coke particle size screen analysis machine - Google Patents
Coke particle size screen analysis machine Download PDFInfo
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- CN216026065U CN216026065U CN202122181294.0U CN202122181294U CN216026065U CN 216026065 U CN216026065 U CN 216026065U CN 202122181294 U CN202122181294 U CN 202122181294U CN 216026065 U CN216026065 U CN 216026065U
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Abstract
The utility model provides a coke granularity sieve analyzer which comprises a feed hopper, a vibrator, a sieving cylinder, a first rotary riding wheel, a second rotary riding wheel, a discharging cover, a storage hopper and a support, wherein the support is fixedly arranged on a plane, the first rotary riding wheel and the second rotary riding wheel are fixedly arranged on an upper support, and the height of the first rotary riding wheel is higher than that of the second rotary riding wheel; the screening cylinder is respectively connected with the first rotary riding wheel and the second rotary riding wheel; the outlet of the feed hopper is connected with the inlet of the screening cylinder, and the vibrator is arranged on the feed hopper; the screening cylinder comprises at least two layers of cylinders arranged inside and outside, strip-shaped sieve holes are arranged on the peripheral wall of each layer of cylinder, the area of the sieve holes on each layer of cylinder is gradually reduced from inside to outside, and discharge holes at the tail ends of each layer of the screening cylinder are mutually isolated; the discharging cover is sleeved on the screening cylinder and is used for communicating the outlets of all layers of the screening cylinder with the corresponding storage hoppers. The utility model has the advantages of less material residue in the feed hopper, good screening effect, convenient disassembly and replacement of the screening cylinder and the like.
Description
Technical Field
The utility model relates to the technical field of coke granularity detection, in particular to a coke granularity sieve analyzer.
Background
The determination method for the coke powder content and the screening composition of the metallurgical coke stipulates that five layers of vibrating screens are adopted for preparing a coke granularity sample. In practice, coke is not screened by a vibrating screen but by a cylindrical screen generally because the coke is irregular in appearance, hard in texture and rough in surface, the vibrating screen is frequently clamped and cannot be screened normally basically, and additionally, a connector lug of the vibrating screen is easy to shake and loosen and a screen plate is easy to shake and crack.
The patent number is "ZL 200520036705.5", and the name is "drum sieve" discloses a drum sieve that has the advantage of not blocking the sieve mesh, screening efficiency is high, compact structure, as shown in figure 1, including feed arrangement, screening section of thick bamboo, discharge cover, rotatory riding wheel, hopper, weighing sensor, discharge valve, receipts material cover, handcart, lower carriage, upper bracket and sieve mesh. The device mainly comprises a feeding device, a plurality of layers of rotary screening cylinders which are concentrically arranged, a rotary riding wheel and a weighing sensor. Coke slides into a feeding device through a chute, then enters the center of the inner layer of the screening drum, the screening drum rotates, the coke rolls and slides in the inclined screening drum to move forward, is divided into five types of particle size fractions, and enters corresponding weighing sensors from outlets which are mutually separated from different layers for storage and weighing. The device has the advantages of no blocking of the sieve holes, high screening efficiency and compact structure. However, in practical use, there are problems that are mainly reflected in the following aspects:
1) more fine materials remain in the feed hopper, so that the particle size measurement is influenced;
2) no matter the screening barrel rotates forwards or backwards, coke powder is always screwed into a gap between the feeding hopper and the rotary screening barrel and continuously falls off from a seam, and the screening barrel is locked and cannot rotate when serious;
3) the screening cylinder outer cover is of an integral structure, so that the screening cylinder is extremely difficult to maintain and replace;
4) because the screening cylinder and the rotary idler shaft can never be absolutely parallel, the axial displacement of the screening cylinder, or the forward or backward movement can be inevitably caused. Even the screening cylinder is pressed against the tail part of the motor, so that the accident of frequent overload trip or incapability of starting is caused;
5) according to the relevant regulations of sieving, the undersize is attributed to the fact that only one direction can pass through the sieve holes. The sieve mesh is circular port or quad slit on the current screening section of thick bamboo, and strip burnt can only pass through the sieve mesh with the state of lying, can't realize "puncture" effect, causes the poor phenomenon of sieve permeability.
SUMMERY OF THE UTILITY MODEL
The present invention aims to address at least one of the above-mentioned deficiencies of the prior art. For example, one of the objectives of the present invention is to provide a coke particle size sifting machine with less material residue in the feeding hopper, good sifting effect, and easy disassembly and replacement of the sifting cylinder.
In order to achieve the above object, the present invention provides a coke particle size screen separator, which comprises a feed hopper, a vibrator, a screening drum, a first rotary riding wheel, a second rotary riding wheel, a discharge cover, a storage hopper and a bracket, wherein,
the bracket is fixedly arranged on a plane, the first rotary riding wheel and the second rotary riding wheel are fixedly arranged on the bracket, and the height of the first rotary riding wheel is higher than that of the second rotary riding wheel;
the screening cylinder is respectively connected with the first rotary riding wheel and the second rotary riding wheel;
the feed hopper is fixedly arranged on the bracket, an outlet of the feed hopper is connected with an inlet of the sieving cylinder to supply materials to the sieving cylinder, and the vibrator is arranged on the feed hopper;
the screening cylinder comprises at least two layers of cylinders arranged from inside to outside, strip-shaped sieve holes are formed in the peripheral wall of each cylinder on the inner layer, the hole area of each strip-shaped sieve hole on each cylinder on the inner layer is gradually reduced from inside to outside, the outlet of the feed hopper is communicated with the inlet of the innermost cylinder on the screening cylinder, and the discharge holes at the tail ends of each layer of the screening cylinder are mutually isolated;
the discharging cover is sleeved on the screening cylinder and is used for communicating each layer of outlet of the screening cylinder with the corresponding storage hopper;
the storage hopper is used for collecting the screened materials.
In an exemplary embodiment of the present invention, the screening drum may include five layers of drum bodies arranged in sequence from inside to outside, and the length-width ratio of the strip-shaped screen hole may be 2: 1-10: 1.
in an exemplary embodiment of the present invention, the bracket may include an upper bracket and a lower bracket, the lower bracket being fixedly disposed on a horizontal plane, the upper bracket being disposed on the lower bracket with a top surface thereof being inclined to one side.
In an exemplary embodiment of the utility model, a first cushion pad is further arranged on the feed hopper inlet flange to be in flexible connection with the incoming chute, and the discharge cover can be of a split structure.
In an exemplary embodiment of the utility model, the sifter may further comprise a second buffer pad disposed between the feed hopper and the upper bracket.
In an exemplary embodiment of the present invention, an angle between the axis of the sieving cylinder and the horizontal line may be 3 to 20 °.
In an exemplary embodiment of the present invention, the axial direction of the motors of the first idler and the second idler may be perpendicular to the axis of the sieving cylinder, and the first idler and the second idler are further provided with a motor reducer respectively.
In an exemplary embodiment of the utility model, the inlet end of the sieving cylinder is provided with a material stopping flange, and an outlet pipe of the feeding hopper extends into the material stopping flange.
In an exemplary embodiment of the present invention, the apparatus may further include a wear-resistant groove provided on the upper bracket and roll-connected to one side of the classifying cylinder, and a flat rolling ring provided on the upper bracket and roll-connected to the other side of the classifying cylinder.
In an exemplary embodiment of the utility model, the screen printing machine may further comprise a hopper scale disposed on the storage hopper to weigh each size material separately.
Compared with the prior art, the beneficial effects of the utility model can comprise the following contents:
(1) a vibrator is arranged on the feed hopper, so that the influence on particle size determination caused by fine materials remaining in the feed hopper is avoided;
(2) the sieve holes on the sieving cylinder are arranged in a strip shape, so that strip coke can also pass through the sieve holes, the puncture effect is realized, and the phenomenon of poor sieving permeability is avoided;
(3) the end part of the inlet of the screening cylinder is provided with a material blocking flange, the outlet pipe of the feed hopper extends into the material blocking flange, and the material blocking flange is provided with a slope, so that the problems that the screening cylinder is blocked and cannot rotate due to the fact that materials directly fall outwards from a gap between the feed hopper and the rotary screening cylinder are solved;
(4) the problem of frequent overload tripping or incapability of starting due to axial leaping caused by non-parallelism between the screening cylinder and the rotary idler shaft is solved;
(5) the problems of high failure rate of blocking of a screening barrel, joint leakage, axial leaping, poor screening permeability, difficult maintenance and the like of the conventional coke sample screen are solved; the method is suitable for occasions of professional preparation of coke granularity samples in the automatic metallurgical coke sampling system.
Drawings
FIG. 1 shows a schematic of the construction of a coke particle size screen according to an exemplary embodiment of the present invention;
FIG. 2 shows a left side view of FIG. 1;
FIG. 3 shows a top view of FIG. 1;
FIG. 4 shows a schematic structural view of the sieving cartridge of FIG. 1;
fig. 5 shows an enlarged view of the junction of the sieving cartridge and the feed hopper of fig. 1.
The reference numerals are explained below:
1-a feed hopper, 2-a vibrator, 3-a screening cylinder, 31-a material stopping flange, 32-a strip-shaped sieve pore, 4-a first rotary riding wheel, 5-a second rotary riding wheel, 6-a discharge cover, 61-a large discharge cover, 62-a small discharge cover, 7-a storage hopper, 8-a support, 81-an upper support, 82-a lower support, 9-a hopper scale, 10-a straight rolling ring and 11-a wear-resistant groove.
Detailed Description
Hereinafter, the coke particle size sifter of the present invention will be described in detail with reference to the accompanying drawings and exemplary embodiments.
FIG. 1 shows a schematic of the construction of a coke particle size screen according to an exemplary embodiment of the present invention; FIG. 2 shows a left side view of FIG. 1; FIG. 3 shows a top view of FIG. 1; FIG. 4 shows a schematic structural view of the sieving cartridge of FIG. 1; fig. 5 shows an enlarged view of the junction of the sieving cartridge and the feed hopper of fig. 1.
In an exemplary embodiment of the utility model, as shown in FIG. 1, a coke particle size screen essentially comprises a feed hopper 1, a shaker 2, a sizing drum 3, a first rotating idler 4, a second rotating idler 5, a discharge hood 6, a hopper scale 9, and a support frame 8.
As shown in fig. 1, the support 8 is fixedly arranged on a plane, the first rotating riding wheel 4 and the second rotating riding wheel 5 are fixedly arranged on the support 8, and the height of the first rotating riding wheel 4 is higher than that of the second rotating riding wheel 5, so that the sieving cylinder 3 is arranged obliquely to the plane.
In this embodiment, the screening cylinder is connected with the first rotary riding wheel and the second rotary riding wheel respectively. As shown in fig. 1, the outer wall of the right side cylinder of the sieving cylinder 3 is connected with a first rotary riding wheel 4, the outer wall of the left side cylinder is connected with a second rotary riding wheel 5, and the sieving cylinder 3 is rotated along the axial direction thereof by the first rotary riding wheel 4 and the second rotary riding wheel 5.
In this embodiment, as shown in fig. 1, the feeding hopper 1 is fixedly connected with the bracket 8, the inlet of the feeding hopper 1 is connected with the incoming chute to receive the material, and the outlet of the feeding hopper 1 is communicated with the inlet of the sieving cylinder 3 to feed the sieving cylinder 3. The vibrator 2 is fixedly arranged on the feed hopper 1 to provide vibration to reduce material residues in the feed hopper 1. For example, a vibrator may be provided at the bottom of the hopper 1, and the vibrator may be a vibration motor. Here, the feeder hopper bottom can be the arc wall in order to do benefit to the flow of material, and the vibrating motor of cooperation arc wall lower part can greatly reduce the inslot residual material, improves the accuracy of screening.
In the exemplary embodiment, the screening cylinder comprises at least two layers of cylinders arranged inside and outside, the peripheral wall of each layer of cylinder is provided with strip-shaped screen holes with the same shape, the hole areas of the strip-shaped screen holes on the cylinders in the layers from inside to outside are gradually reduced, the outlet of the feed hopper is communicated with the inlet of the innermost layer of cylinder of the screening cylinder, and the discharge ports at the tail ends of the layers of the screening cylinder are mutually isolated. For example, the strip-shaped mesh may be a rectangular mesh with four corners being arcs, and the aspect ratio may be 2: 1-10: 1. here, the sieve holes are made into long holes, and the strip focal plane can also sieve down when passing through the sieve holes. In addition, the long holes are easy to process, the area of the sieve holes is larger than that of the square and round holes, and the sieving performance is better. As shown in fig. 5, the classifying cylinder 3 may include five cylinders coaxially arranged from the inside to the outside, and a strip-shaped sieve hole 32 is provided on the peripheral wall of each cylinder. From inside to outside, the hole area of strip sieve mesh 32 diminishes step by step on the barrel, and the export of feeder hopper and the entry intercommunication of the innermost barrel of screening section of thick bamboo 3, the discharge gate at the terminal of each layer of barrel of screening section of thick bamboo 3 is kept apart each other.
In the present embodiment, as shown in fig. 1 and 3, the discharge cover 6 is sleeved on the sieving cylinder 3 to communicate the outlets of the cylinders of each layer of the sieving cylinder 3 with the corresponding storage hoppers 7. Here, the discharge cover 6 includes a large discharge cover 61 and a small discharge cover 62, wherein the large discharge cover 61 is connected to the material storage ports at the ends of the four layers of cylinders outside the classifying cylinder 3, and the small discharge cover 62 is connected to the material discharge port of the innermost layer of cylinders of the classifying cylinder 3. The large discharging cover 61 and the small discharging cover 62 communicate the discharging ports of the cylinders of each layer of the screening cylinder 3 with the corresponding storage hoppers 7.
In this exemplary embodiment, the screening cylinder may include five layers of cylinders arranged in sequence from inside to outside, the screening cylinder includes five layers of cylinders arranged in sequence from inside to outside, and the aspect ratio of the strip-shaped screen hole is 2: 1-10: 1. all set up the strip sieve mesh on the perisporium of every layer of barrel, the aperture of sieve mesh diminishes from the inlayer to the skin step by step on the barrel, and the export of feeder hopper and the entry intercommunication of the most inlayer of screening section of thick bamboo, the terminal discharge gate mutual isolation of each layer of screening section of thick bamboo.
In the present exemplary embodiment, as shown in fig. 1, the bracket 8 may include an upper bracket 81 and a lower bracket 82. Wherein, the lower bracket 82 is fixedly arranged on a horizontal plane, the top surface thereof is parallel to the horizontal plane, and the top surface is provided with an opening for the storage hopper 7 to pass through. The upper bracket 81 is arranged on the top surface of the lower bracket 82, the top surface of the upper bracket is a plane which is obliquely arranged along the left and right directions, and the sieving cylinder 3 is obliquely arranged by inclining the upper bracket, so that the material is sieved along the axial movement of the sieving cylinder in the sieving cylinder 3 under the action of gravity.
In the present exemplary embodiment, as shown in fig. 1 and 2, the inlet flange of the feeding funnel 1 may also be provided with a first cushion (not shown in fig. 1) for a soft connection with the incoming chute upstream. Meanwhile, the smoke dust generated in the feeding process is prevented from escaping. The discharge cover 6 may be a vertically split structure so as to facilitate the removal of the cover and the replacement of the sieving drum 3.
In the present exemplary embodiment, as shown in fig. 1, the sifting machine may further include a second buffer pad (not shown in fig. 1), which is disposed between the feeding hopper 1 and the bracket 8, for example, a thick rubber pad, to prevent the vibration generated by the vibration motor from affecting the weighing accuracy of the following hopper scale.
In the exemplary embodiment, the included angle between the axis of the screening cylinder and the horizontal line can be 3-20 degrees, and the included angle can be adjusted through the upper bracket.
In the exemplary embodiment, the axial direction of the motors of the first riding wheel and the second riding wheel can be perpendicular to the axial line of the screening cylinder, so that the axial space is saved, and meanwhile, the interference between the screening cylinder and the motor after axial displacement caused by long-term abrasion can be avoided. The first riding wheel and the second riding wheel are respectively provided with a motor reducer for adjusting the rotating speed of the screening cylinder.
In the exemplary embodiment, as shown in fig. 4 and 5, the inlet end of the sieving cylinder 3 is provided with a material stopping flange 31, and the outlet pipe of the feeding hopper 1 extends into the material stopping flange 31, so that fine powder in the material cannot enter the joint, cannot leak out, and cannot block the sieving cylinder. Here, in order to guarantee that feeder hopper vibrating motor during operation, screening section of thick bamboo and feeder hopper export direct contact not, screening section of thick bamboo rotation just can not produce and wipe and hang and additional load, there is a distance h (about 3 ~ 5 mm) between screening section of thick bamboo and the feeder hopper.
In the exemplary embodiment, as shown in fig. 5, the screening machine may further include a wear-resistant groove 11 and a flat rolling ring 10, the wear-resistant groove 11 is disposed on the upper bracket and is in rolling connection with one side of the screening cylinder (i.e., the innermost layer of the outer wall of the cylinder body of the screening cylinder), and the flat rolling ring 10 is disposed on the upper bracket and is in rolling connection with the other side of the screening cylinder. Here, in order to prevent the axial leap generated when the screening cylinder rotates, a wear-resistant groove is arranged on one side of the screening cylinder, the riding wheel (namely, the first riding wheel) at one end is clamped in the groove, and the two directions of the screening cylinder are both restrained. The riding wheel (namely the second riding wheel) at the other end can move with the screening cylinder, so as to avoid the over-constraint to cause the blocking.
In the present exemplary embodiment, as shown in fig. 1, the screen analyzer may further include a plurality of hopper scales 9, each hopper scale 9 being respectively disposed on the corresponding storage hopper 7 to weigh the sieved material, obtaining the weight of each grain size material.
In summary, the beneficial effects of the utility model include the following:
(1) a vibrator is arranged on the feed hopper, so that the influence on particle size determination caused by fine materials remaining in the feed hopper is avoided;
(2) the sieve holes on the sieving cylinder are arranged in a strip shape, so that strip coke can also pass through the sieve holes, the puncture effect is realized, and the phenomenon of poor sieving permeability is avoided;
(3) the end part of the inlet of the screening cylinder is provided with the material blocking flange, and the outlet pipe of the feed hopper extends into the material blocking flange, so that the problems that the screening cylinder is blocked and cannot rotate due to the fact that materials fall outwards from a gap between the feed hopper and the rotary screening cylinder are avoided;
(4) the problem of frequent overload tripping or incapability of starting due to axial leaping caused by non-parallelism between the screening cylinder and the rotary idler shaft is solved;
(5) the problems of high failure rate of blocking of a screening barrel, joint leakage, axial leaping, poor screening permeability, difficult maintenance and the like of the conventional coke sample screen are solved; the method is suitable for occasions of professional preparation of coke granularity samples in the automatic metallurgical coke sampling system.
Although the present invention has been described above in connection with the exemplary embodiments and the accompanying drawings, it will be apparent to those of ordinary skill in the art that various modifications may be made to the above-described embodiments without departing from the spirit and scope of the claims.
Claims (10)
1. A coke granularity sieve analyzer is characterized by comprising a feed hopper, a vibrator, a sieving barrel, a first rotary riding wheel, a second rotary riding wheel, a discharge cover, a storage hopper and a bracket, wherein,
the bracket is fixedly arranged on a plane, the first rotary riding wheel and the second rotary riding wheel are fixedly arranged on the bracket, and the height of the first rotary riding wheel is higher than that of the second rotary riding wheel;
the screening cylinder is respectively connected with the first rotary riding wheel and the second rotary riding wheel;
the feed hopper is fixedly arranged on the bracket, an outlet of the feed hopper is connected with an inlet of the sieving cylinder to supply materials to the sieving cylinder, and the vibrator is arranged on the feed hopper;
the screening cylinder comprises at least two layers of cylinders arranged from inside to outside, strip-shaped sieve holes are formed in the peripheral wall of each cylinder on the inner layer, the hole area of each strip-shaped sieve hole on each cylinder on the inner layer is gradually reduced from inside to outside, the outlet of the feed hopper is communicated with the inlet of the innermost cylinder on the screening cylinder, and the discharge holes at the tail ends of each layer of the screening cylinder are mutually isolated;
the discharging cover is sleeved on the screening cylinder and is used for communicating each layer of outlet of the screening cylinder with the corresponding storage hopper;
the storage hopper is used for collecting the screened materials.
2. The coke particle size screen analysis machine according to claim 1, wherein the screening cylinder comprises five layers of cylinders arranged from inside to outside in sequence, and the length-width ratio of the strip-shaped screen holes is 2: 1-10: 1.
3. The coke particle size screen separator of claim 1, wherein the support comprises an upper support and a lower support, the lower support is fixedly arranged on a horizontal plane, the upper support is arranged on the lower support, and the top surface of the upper support is inclined to one side.
4. The coke particle size screen analyzer of claim 1, wherein the feed hopper inlet flange is further provided with a first cushion pad for flexible connection with an incoming chute, and the discharge cover is a split structure.
5. The coke size screen of claim 1, further comprising a second buffer positioned between the feed hopper and the upper rack.
6. The coke particle size screen separator of claim 1, wherein the axis of the screen cylinder is at an angle of 3 to 20 ° to the horizontal.
7. The coke particle size screen analyzer of claim 1, wherein the motor axes of the first and second rotary idlers are perpendicular to the axis of the screening drum, and the first and second rotary idlers are further provided with motor reducers, respectively.
8. The coke particle size screen analysis machine of claim 1, wherein the inlet end of the sizing drum is provided with a material blocking flange, and the outlet pipe of the feed hopper extends into the material blocking flange.
9. The coke size screen of claim 1, further comprising a wear resistant groove disposed on the upper support and in rolling communication with one side of the screen cylinder and a flat rolling ring disposed on the upper support and in rolling communication with the other side of the screen cylinder.
10. The coke size screen of claim 1, further comprising a hopper scale disposed on the storage hopper to weigh each size material separately.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122181294.0U CN216026065U (en) | 2021-09-09 | 2021-09-09 | Coke particle size screen analysis machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122181294.0U CN216026065U (en) | 2021-09-09 | 2021-09-09 | Coke particle size screen analysis machine |
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| CN216026065U true CN216026065U (en) | 2022-03-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116116694A (en) * | 2022-11-28 | 2023-05-16 | 攀钢集团攀枝花钢铁研究院有限公司 | Small-granularity titanium sponge screening device |
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2021
- 2021-09-09 CN CN202122181294.0U patent/CN216026065U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116116694A (en) * | 2022-11-28 | 2023-05-16 | 攀钢集团攀枝花钢铁研究院有限公司 | Small-granularity titanium sponge screening device |
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