Returned coke size grading device

Abstract

The utility model discloses a returned coke size grading device, which relates to the field of nut coke sieving equipment, and comprises a metal net, first connecting pieces are respectively arranged at two ends of the metal net, each first connecting piece comprises a first horizontal part, a vertical part and a second horizontal part which are connected in sequence, and the first connecting parts are connected with the end parts of the metal net; the two second connecting pieces are arranged at the two ends of the metal net correspondingly, the second connecting pieces are in a U shape, and the second horizontal part and the framework are inserted into the second connecting pieces; the bar sieve plate is arranged on the lower side of the metal net; the grading device is provided with the metal net and the bar screen plate, the screening efficiency can be improved, and meanwhile the bar screen plate is prevented from being damaged.

Description

Technical Field

[0001] The utility model belongs to the field of coke diced screening equipment, and more specifically relates to a coke return particle size classification device. Background Art

[0002] The coke used in blast furnaces needs to be screened, and the coke will be returned during the screening process. This part of the returned coke can be sent to the sintering machine as fuel after secondary screening. When the rod screen performs secondary screening on the returned coke, the diameter of the returned coke varies, which can easily cause the rod screen to wear and affect its service life. In addition, the particles that are screened out during the screening process may exceed the particle size limit, which not only affects the next process, but also causes waste. Utility Model Content

[0003] The utility model aims to provide a coke return particle size grading device in view of the deficiencies in the prior art. The grading device is provided with a metal mesh and a rod screen plate, which can improve the screening efficiency and avoid damage to the rod screen plate.

[0004] In order to achieve the above object, the utility model provides a coke return particle size classification device, comprising:

[0005] A metal mesh, with first connecting members respectively disposed at both ends, the first connecting member comprising a first horizontal portion, a vertical portion and a second horizontal portion connected in sequence, the first connecting portion being connected to the end of the metal mesh;

[0006] Two second connecting members are respectively arranged at two ends of the metal mesh, the second connecting member is U-shaped, and the second horizontal portion and the frame are inserted into the interior of the second connecting member;

[0007] The rod screen plate is arranged on the lower side of the metal mesh.

[0008] Optionally, the first connecting member is an integrally formed structure, the first horizontal portion and the second horizontal portion are respectively arranged on both sides of the vertical portion, and the first horizontal portion and the second horizontal portion are respectively arranged at the bottom and the top of the vertical portion.

[0009] Optionally, one end of the first horizontal portion close to the metal mesh is in a comb-tooth shape, and the end mesh holes of the metal mesh are respectively sleeved on each comb tooth.

[0010] Optionally, at least two first through holes are provided on the second horizontal portion, second through holes are correspondingly provided on the frame, threaded holes are correspondingly provided on two side walls of the second connecting member, and the first through holes, the second through holes and the threaded holes are connected by bolts.

[0011] Optionally, the sum of the thicknesses of the second horizontal portion and the frame corresponds to the width between two side walls of the second connecting member.

[0012] Optionally, the skeleton is connected to a vibration motor.

[0013] Optionally, a cross bar is provided between the vertical parts at both ends, and a gap between the cross bar and the metal mesh is larger than the size of the coke pieces.

[0014] Optionally, the rod screen plate includes a plurality of rods, and the rods are arranged along the width direction of the rod screen plate.

[0015] Optionally, the aperture of the metal mesh is 2 mm larger than the spacing between adjacent rods.

[0016] Optionally, the metal mesh and the first connecting member are detachably connected.

[0017] The utility model provides a coke return particle size grading device, which has the beneficial effects of: the grading device is simple to manufacture and convenient to disassemble, and after being screened by the metal mesh, large-sized coke pieces are prevented from contacting the rod screen plate, thereby extending the service life of the rod screen plate and effectively controlling the screening cost.

[0018] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present invention.

[0020] Figure 1 A schematic structural diagram of a focus return particle size classification device according to an embodiment of the utility model is shown.

[0021] Figure 2 Shows Figure 1 Top view of the .

[0022] Figure 3 A structural top view of a rod screen plate according to an embodiment of the utility model is shown.

[0023] Figure 4 A schematic diagram showing the connection between a metal mesh and a skeleton according to an embodiment of the utility model is shown.

[0024] Figure 5 Shows Figure 4 Stereoscopic diagram.

[0025] Figure 6Shows Figure 5 A magnified view of point A.

[0026] Description of reference numerals:

[0027] 1. Metal mesh; 2. First connecting piece; 3. First horizontal portion; 4. Vertical portion; 5. Second horizontal portion; 6. Second connecting piece; 7. Rod screen plate; 8. Threaded hole; 9. Bolt; 10. Frame; 11. Rod. DETAILED DESCRIPTION

[0028] The preferred embodiments of the present invention will be described in more detail below. Although the preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0029] The utility model provides a coke return particle size classification device, comprising:

[0030] The metal mesh has first connecting members at both ends, the first connecting member comprising a first horizontal portion, a vertical portion and a second horizontal portion connected in sequence, and the first connecting portion is connected to the end of the metal mesh;

[0031] Two second connecting members are respectively arranged at two ends of the metal mesh, the second connecting member is U-shaped, and the second horizontal portion and the frame are inserted into the interior of the second connecting member;

[0032] The rod screen plate is arranged on the lower side of the metal mesh.

[0033] Specifically, the coke particle size classification device is provided with two screening structures, a metal mesh and a bar screen plate. The coke is first screened by the metal mesh to filter out a portion of larger particles, and the other small particles pass through the metal mesh and fall onto the bar screen plate. Under the vibration of the bar screen plate layer by layer, secondary screening is achieved, so that the coke left on the bar screen plate after screening is reused, and the coke powder screened from the bar screen plate is sent to the sintering machine for use as fuel. The metal mesh provided in the classification device can effectively prevent large-sized coke from directly contacting the bar screen plate, causing damage to the bar screen plate, and also prevent large-sized coke from being screened through the gap between adjacent bar screen plates, resulting in excessive particle size, which not only affects the next process, but also causes waste.

[0034] Optionally, the first connecting member is an integrally formed structure, the first horizontal portion and the second horizontal portion are respectively arranged at two sides of the vertical portion, and the first horizontal portion and the second horizontal portion are respectively arranged at the bottom and the top of the vertical portion.

[0035] Specifically, the first connecting member connected to the metal mesh is an integrally formed structure, and the vertical portion is vertically connected to the first horizontal portion and the second horizontal portion. This can improve the overall strength of the first connecting member, enable the first connecting member to drive the metal mesh to vibrate horizontally, and improve the screening effect of the metal mesh.

[0036] Optionally, one end of the first horizontal portion close to the metal mesh is in a comb-tooth shape, and the end mesh holes of the metal mesh are respectively sleeved on each of the comb teeth.

[0037] Specifically, the first horizontal portion is used to connect with the metal mesh. The end of the first horizontal portion is arranged in a comb shape, and then the mesh holes at the end of the metal mesh are placed on each comb tooth, and then the mesh holes and the vertical portion of the metal mesh are tied together with a bandage or a rope, thereby increasing the connection area between the metal mesh and the first connecting member and improving the connection strength between the two.

[0038] Optionally, at least two first through holes are provided on the second horizontal portion, second through holes are correspondingly provided on the frame, threaded holes are correspondingly provided on two side walls of the second connecting member, and the first through holes, the second through holes and the threaded holes are connected by bolts.

[0039] Specifically, the second connecting member is U-shaped, the first connecting member is plugged into the interior of the second connecting member through the second horizontal portion, and the flange of the skeleton is also plugged into the interior of the second connecting member. After the first connecting member, the second connecting member and the flange of the skeleton are installed in place, the corresponding through holes and threaded holes are ensured to be in a centered state and fixed by bolts, so that the metal mesh is firmly connected to the skeleton.

[0040] Optionally, the sum of the thicknesses of the second horizontal portion and the frame corresponds to the width between two side walls of the second connecting member.

[0041] Optionally, the frame is connected to a vibration motor.

[0042] Specifically, when the first connecting member, the second connecting member and the frame are connected and fixed, the U-shaped opening of the second connecting member is first wrapped around the flange of the frame so that the lower side wall of the second connecting member fits with the bottom side of the flange of the frame, and then the first connecting member is inserted into the U-shaped opening of the second connecting member. Since the thickness of the second horizontal portion and the flange of the frame is consistent with the width of the U-shaped opening of the second connecting member, the upper surface and the lower surface of the second horizontal portion are respectively fitted with the upper side wall of the second connecting member and the top side of the flange of the frame. The installation positions of the three are relatively stable, ensuring that when the vibration motor drives the frame to shake, the relative displacement of the frame and the first connecting member is small, thereby avoiding vibration of the metal mesh in other directions, which affects the service life of the grading device.

[0043] Optionally, a cross bar is provided between the vertical parts at both ends, and a gap between the cross bar and the metal mesh is larger than the size of the coke pieces.

[0044] Specifically, a cross bar is arranged above the long side of the metal mesh, and the ends of the cross bar are respectively connected to the vertical parts on both ends, so that when there is return coke on the metal mesh to be screened, the cross bar can intercept the return coke to prevent the return coke from not being filtered by the metal mesh and falling directly onto the rod screen plate.

[0045] Optionally, the rod screen plate comprises a plurality of rods, and the rods are arranged along the width direction of the rod screen plate.

[0046] Specifically, a plurality of rods are arranged on the bar screen plate, and a connecting rod is arranged on one side of the plurality of rods, and the plurality of rods are connected by the same connecting rod. There are a plurality of such bar screen plates, and the plurality of bar screen plates are arranged in a stepped manner, and the metal mesh is arranged above the highest bar screen plate, and the end of the highest bar screen plate away from the next bar screen plate is arranged as the connecting rod, and the end close to the next bar screen plate is arranged as the extension end of the rod, and the next several levels of bar screen plates are arranged in this way. After the metal mesh screens the return coke, the small-sized return coke contacts the bar screen plate and is vibrated and screened, so that coke powder can be obtained for use as fuel for the sintering machine.

[0047] Optionally, the aperture of the metal mesh is 2 mm larger than the spacing between adjacent rods.

[0048] Specifically, the metal mesh can screen out large-sized return coke, so that the large-sized return coke will not come into contact with the rod screen plate, thereby extending the service life of the rod screen plate; the return coke is filtered through a double layer of the metal mesh and the rod screen plate, thus preventing the screened material including the excessive shell from affecting the next process.

[0049] Optionally, the metal mesh is detachably connected to the first connecting member.

[0050] Specifically, the metal mesh can be replaced with metal meshes of different apertures according to the filtering requirements of the return coke, and the connection method between the metal mesh and the first connecting member is very simple, thereby improving the application range of the grading device.

[0051] Example

[0052] like Figures 1 to 6 As shown, the utility model provides a coke return particle size classification device, comprising:

[0053] A metal mesh 1, with first connecting members 2 provided at both ends, the first connecting member 2 comprising a first horizontal portion 3, a vertical portion 4 and a second horizontal portion 5 connected in sequence, the first connecting portion 3 being connected to the end of the metal mesh 1;

[0054] Two second connecting members 6 are respectively arranged at two ends of the metal mesh 1, the second connecting member 6 is U-shaped, and the second horizontal portion 5 and the frame 10 are inserted into the second connecting member 6;

[0055] The rod screen plate 7 is arranged on the lower side of the metal mesh 1 .

[0056] In this embodiment, the first connecting member 2 is an integrally formed structure, the first horizontal portion 3 and the second horizontal portion 5 are respectively arranged on both sides of the vertical portion 4, and the first horizontal portion 3 and the second horizontal portion 5 are respectively arranged at the bottom and the top of the vertical portion 4.

[0057] In this embodiment, one end of the first horizontal portion 3 close to the metal mesh 1 is in the shape of comb teeth, and the end mesh holes of the metal mesh 1 are respectively sleeved on each of the comb teeth.

[0058] In this embodiment, at least two first through holes are provided on the second horizontal portion 5 , a second through hole is correspondingly provided on the frame 10 , threaded holes 8 are correspondingly provided on the two side walls of the second connecting member 6 , and the first through holes, the second through holes and the threaded holes 8 are connected by bolts 9 .

[0059] In this embodiment, the sum of the thicknesses of the second horizontal portion 5 and the frame 10 corresponds to the width between the two side walls of the second connecting member 6 .

[0060] In this embodiment, the frame 10 is connected to a vibration motor.

[0061] In this embodiment, a cross bar is provided between the vertical parts 4 at both ends, and the gap between the cross bar and the metal mesh 1 is larger than the size of the coke pieces.

[0062] In this embodiment, the rod screen plate 7 includes a plurality of rods 11 , and the rods 11 are arranged along the width direction of the rod screen plate 7 .

[0063] In this embodiment, the aperture of the metal mesh 1 is larger than the spacing between adjacent rods 11 by 2 mm.

[0064] In this embodiment, the metal mesh 1 and the first connecting member 2 are detachably connected.

[0065] In summary, the white steel mesh is cut into a suitable size, and its end is connected to the first horizontal part 3, and the end meshes of the metal mesh 1 are respectively mounted on the corresponding comb teeth of the first horizontal part 3, and then the metal mesh 1 is tied together with the vertical part 4 by a strap, and the second horizontal part 5 is fixed to the second connecting piece 6 and the skeleton 10 by bolts 9. When in use, the metal mesh 1 is covered on the rod screen plate 7, and the returned coke is first screened through the metal mesh 1 when screening, and the excess small-sized coke pieces pass through the metal mesh 1 and fall onto the rod screen plate 7 for screening again, thereby improving the screening efficiency, while effectively protecting the rods 11 and extending the service life of the rod screen plate 7.

[0066] The various embodiments of the utility model have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A coke return particle size classification device, characterized in that: include: A metal mesh, with first connecting members respectively disposed at both ends, the first connecting member comprising a first horizontal portion, a vertical portion and a second horizontal portion connected in sequence, the first connecting member being connected to the end of the metal mesh; Two second connecting members are respectively arranged at two ends of the metal mesh, the second connecting member is U-shaped, and the second horizontal portion and the frame are inserted into the interior of the second connecting member; The rod screen plate is arranged on the lower side of the metal mesh.

2. The coke return particle size classification device according to claim 1, characterized in that: The first connecting member is an integrally formed structure, the first horizontal portion and the second horizontal portion are respectively arranged at two sides of the vertical portion, and the first horizontal portion and the second horizontal portion are respectively arranged at the bottom and the top of the vertical portion.

3. The coke return particle size classification device according to claim 1, characterized in that: One end of the first horizontal portion close to the metal mesh is in a comb-tooth shape, and the end mesh holes of the metal mesh are respectively sleeved on each comb tooth.

4. The coke return particle size classification device according to claim 1, characterized in that: At least two first through holes are arranged on the second horizontal portion, second through holes are correspondingly arranged on the frame, threaded holes are correspondingly arranged on two side walls of the second connecting member, and the first through holes, the second through holes and the threaded holes are connected by bolts.

5. The coke return particle size classification device according to claim 1, characterized in that: The sum of the thicknesses of the second horizontal portion and the frame corresponds to the width between the two side walls of the second connecting member.

6. The coke return particle size classification device according to claim 1, characterized in that: The frame is connected with the vibration motor.

7. The coke return particle size classification device according to claim 1, characterized in that: A cross bar is arranged between the vertical parts at both ends, and the gap between the cross bar and the metal mesh is larger than the size of the coke pieces.

8. The coke return particle size classification device according to claim 1, characterized in that: The bar screen plate includes a plurality of bars, and the bars are arranged along the width direction of the bar screen plate.

9. The coke return particle size classification device according to claim 8, characterized in that: The aperture of the metal mesh is 2 mm larger than the spacing between adjacent rods.

10. The coke return particle size classification device according to claim 1, characterized in that: The metal mesh is detachably connected to the first connecting member.

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