CN112944922B - Method for replacing receiving chute of ring type cooling machine - Google Patents
Method for replacing receiving chute of ring type cooling machine Download PDFInfo
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- CN112944922B CN112944922B CN202110196298.8A CN202110196298A CN112944922B CN 112944922 B CN112944922 B CN 112944922B CN 202110196298 A CN202110196298 A CN 202110196298A CN 112944922 B CN112944922 B CN 112944922B
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- receiving chute
- trolley
- chute
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D15/00—Handling or treating discharged material; Supports or receiving chambers therefor
- F27D15/02—Cooling
- F27D15/0206—Cooling with means to convey the charge
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Abstract
The invention relates to a method for replacing a receiving chute of a ring type cooling machine, which comprises the following steps of manufacturing a new receiving chute; stopping the sintering machine system, and emptying materials between the sintering machine and the ring type cooling machine; hanging out the dust hood; fixing the position of a hopper, cutting the connection between an old receiving chute and the hopper, placing the old receiving chute in a circular cooler trolley right below, starting the circular cooler to rotate, conveying the old receiving chute out of the circular cooler trolley by the circular cooler trolley, placing a new receiving chute in the circular cooler trolley, starting the circular cooler to rotate, and conveying the new receiving chute to the lower part of the hopper by the circular cooler trolley; butt-jointing the new material receiving chute with the hopper, and welding the new material receiving chute with the hopper; and (5) installing the dust hood again. The invention reduces the times of cutting the receiving chute, only needs one-time integral cutting of the receiving chute, effectively simplifies the process of replacing the receiving chute, reduces the downtime of the sintering machine and the ring type cooling machine, reduces the labor intensity of maintenance and reduces the safety risk.
Description
Technical Field
The invention relates to the technical field of ring type cooling machines, in particular to a method for replacing a receiving chute of a ring type cooling machine.
Background
A ring cooler is a large-scale device of a metal smelting enterprise, consists of an air box, a trolley, a receiving chute and the like, is usually applied to sintering production and pellet production, is used for cooling high-temperature sinter ore or pellet ore, has large volume and weight, and is a key device for sintering production or pellet production. The receiving chute of ring cooler is the equipment of feeding to ring cooler, and the material volume that the receiving chute need be transported is very big, nevertheless because the receiving chute contacts with the sintering hot mine of high temperature for a long time, the long receiving chute of live time can take place to warp, and the receiving chute receives the continuous impact and the friction of sintering hot mine of high temperature moreover, and the wearing and tearing volume of receiving the chute is very big, consequently all will repair the receiving chute when overhauing at every turn. The current methods for repairing the receiving chute of the ring cooler mainly comprise two methods: the method comprises the steps of firstly, cutting an old receiving chute into small blocks by gas cutting, removing the small blocks, dismantling a circular cooler breast board, integrally manufacturing a new receiving chute, hoisting the new receiving chute to an outer ring platform of a circular cooler by a crane, hoisting the new receiving chute to a corresponding position by a chain block, and then welding; and secondly, cutting the old receiving chute into small blocks by gas cutting, removing the small blocks, dismantling the circular cooler side plates, and directly splicing and manufacturing a new receiving chute by using steel plates on site. The defects of the first method and the second method are obvious, in the first method, the new receiving chute is large in size and about 20 tons in weight and is positioned in the middle of a smoke hood and a dust hood of the annular cooler, the new receiving chute is lifted by a chain block to a corresponding position, the moving distance is long, the difficulty is high, the labor intensity is high, and the danger in the construction process is also large; in the second method, the downtime for overhauling the receiving chute is longer, the workload of welding is large, and the difficulty of overhauling in a high-temperature environment is large.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a method for replacing a receiving chute of a ring type cooling machine, which integrally replaces the receiving chute, simplifies the maintenance process, reduces the labor intensity and reduces the safety risk.
The technical purpose of the invention is realized by the following technical scheme:
a method for replacing a receiving chute of a ring cooler comprises the following steps,
manufacturing a new receiving chute;
the sintering machine system is stopped, materials between the sintering machine and the ring type cooling machine are emptied, no sintering ore is left on the sintering machine trolley, the old receiving chute and the ring type cooling machine trolley, and the ring type cooling machine is stopped, so that the personal safety of maintenance personnel during replacement of the receiving chute is ensured;
the connection between the dust hood and the dust removal pipe is cut off, the dust hood is lifted out, and because an old receiving chute and a new receiving chute need to be transported by the circular cooler trolley, the old receiving chute and the new receiving chute can be conveniently transported after the dust hood is lifted out;
fixing the position of a hopper, cutting the connection between an old receiving chute and the hopper, placing the old receiving chute in a circular cooler trolley right below, starting a circular cooler to rotate, conveying the old receiving chute out of the circular cooler trolley, placing a new receiving chute in the circular cooler trolley, starting the circular cooler to rotate, and conveying the new receiving chute to the lower part of the hopper by the circular cooler trolley;
hoisting a new receiving chute by using a chain block, butting the new receiving chute with the hopper, adjusting the position of the new receiving chute, and welding and connecting the new receiving chute with the hopper;
and (4) installing the dust removing cover again, and connecting the dust removing cover with the dust removing pipe in a welding manner.
In one embodiment, when the receiving chute is replaced, the position of the hopper is fixed, the connection between the old receiving chute and the hopper is cut, the old receiving chute is placed in the circular cooler trolley right below, the circular cooler is started to rotate reversely, the circular cooler trolley transports the old receiving chute out of the circular cooler trolley, and then the circular cooler is stopped; and (3) hoisting the old receiving chute from the ring cooling machine trolley, hoisting a new receiving chute into the ring cooling machine trolley, starting the ring cooling machine to rotate in the forward direction, and transporting the new receiving chute to the lower part of the hopper by the ring cooling machine trolley.
In one embodiment, a new receiving chute is made prior to shutdown of the sintering machine system.
In one embodiment, the ring cooler trolley below the old receiving chute is provided with a detachable fixing device, and the fixing device fixes the old receiving chute or the new receiving chute in the ring cooler trolley.
In one embodiment, the fixing device is a bearing platform arranged on the circular cooler trolley, the bearing platform is placed at the opening of the circular cooler trolley, a fixing port matched with the receiving chute is formed in the middle of the bearing platform, when the receiving chute is replaced, the old receiving chute penetrates through the fixing port and is placed in the circular cooler trolley and is transported to the outside by the circular cooler trolley, then the old receiving chute is lifted out, and the new receiving chute penetrates through the fixing port and is placed in the circular cooler trolley and is transported to the lower side of the hopper by the circular cooler trolley.
In one embodiment, the bearing platform comprises a fixed frame and a support frame, the fixed frame is arranged on the circular cooler trolley, the support frame is located inside the fixed frame, the support frame comprises a plurality of supporting rods which are fixed in the fixed frame and are arranged vertically and horizontally, and the supporting rods which are arranged horizontally and vertically intersect to form a fixed opening matched with the receiving chute.
In one embodiment, the size of the fixed frame is larger than that of a charging port of the circular cooler trolley, the four edges of the fixed frame are provided with fixing parts protruding downwards, and the fixed frame is stably fixed on the circular cooler trolley through the fixing parts.
In one embodiment, the transversely arranged supporting rods forming the fixing port are provided with upward guide grooves, new material receiving chutes or old material receiving chutes penetrate through the fixing port along the guide grooves to be placed on the ring cooling machine trolley, the guide grooves play a role in guiding the material receiving chutes, and even if the fixing port and the material receiving chutes are not completely aligned due to the movement of the ring cooling machine trolley, the material receiving chutes can also penetrate through the fixing port to be placed on the ring cooling machine trolley under the action of the guide grooves.
In one embodiment, the longitudinally arranged support rods forming the fixing openings are also provided with upward guide grooves, the guide grooves of the longitudinally arranged support rods and the guide grooves of the transversely arranged support rods form the guide openings, and under the guide effect of the guide openings, even if the fixing openings and the receiving chutes are not completely aligned, the receiving chutes can be placed on the circular cooler trolley through the fixing openings under the guide effect of the guide openings.
In one embodiment, the number of the support rods arranged in the transverse direction is two, and the number of the support rods arranged in the longitudinal direction is two.
The invention has the following beneficial effects:
the invention reduces the times of cutting the receiving chute, only needs one-time integral cutting of the receiving chute, and transports the old receiving chute out and the new receiving chute to the lower part of the hopper through the annular cooling machine trolley, thereby effectively simplifying the process of replacing the receiving chute, reducing the downtime of the sintering machine and the annular cooling machine, reducing the labor intensity for maintenance and reducing the safety risk.
Drawings
Figure 1 is a schematic view in the direction D-D of the invention in example 1 before changing the chute;
figure 2 is a schematic view in the direction C-C of the chute of example 1 of the present invention before it is replaced;
FIG. 3 is a schematic view of the dust excluding hood of example 1 of the present invention after being lifted out;
figure 4 is a schematic illustration of the invention of example 1 after removal of the old chute;
figure 5 is a schematic view of a new receiving chute for transport according to example 1 of the present invention;
FIG. 6 is a schematic top view of the receiving platform of the present invention;
FIG. 7 is a schematic front view of a docking platform of the present invention;
figure 8 is a schematic view of a replacement chute of example 2 of the present invention.
In the figure: 1-circular cooler trolley, 2-floor slab, 3-dust hood, 4-old receiving chute, 5-upper smoke hood, 6-hopper, 7-dust removing pipe, 8-new receiving chute, 9-fixing frame, 10-transversely arranged support rod, 11-longitudinally arranged support rod, 12-fixing port and 13-fixing part.
Detailed Description
The invention is described in detail below with reference to the figures and examples.
It should be noted that all the directional terms such as "upper" and "lower" referred to herein are used with respect to the view of the drawings, and are only for convenience of description, and should not be construed as limiting the technical solution.
A method for replacing a receiving chute of a ring cooler comprises the following steps,
before the sintering machine system stops, a new material receiving chute 8 is manufactured;
the sintering machine system is stopped, materials between the sintering machine and the ring type cooling machine are emptied, no sintering ore is left on the sintering machine trolley, the old receiving chute 4 and the ring type cooling machine trolley 1, the ring type cooling machine is stopped, and the personal safety of maintenance personnel when the receiving chute is replaced is ensured;
the connection between the dust hood 3 and the dust removal pipe 7 is cut off, the dust hood 3 is lifted out, and since the old receiving chute 4 and the new receiving chute 8 need to be transported by the circular cooler trolley 1, the old receiving chute 4 and the new receiving chute 8 can be conveniently transported after the dust hood 3 is lifted out;
fixing the position of a hopper 6, cutting the connection between an old receiving chute 4 and the hopper 6, placing the old receiving chute 4 in a circular cooler trolley 1 right below, starting a circular cooler to rotate, conveying the old receiving chute 4 out of the cold trolley, placing a new receiving chute 8 in the circular cooler trolley 1, starting the circular cooler to rotate, and conveying the new receiving chute 8 to the position below the hopper 6 by the cold trolley;
hoisting a new receiving chute 8 by using a chain block, butting the new receiving chute 8 with the hopper 6, adjusting the position of the new receiving chute 8, and welding and connecting the new receiving chute 8 with the hopper 6;
and (4) the dust hood 3 is installed again, and the dust hood 3 is connected with the dust removal pipe 7 in a welding mode.
The annular cooler trolley 1 below the old receiving chute 4 is provided with a detachable fixing device, and the fixing device fixes the old receiving chute 4 or the new receiving chute 8 in the annular cooler trolley 1.
The fixing device is a bearing platform arranged on the circular cooler trolley 1, the bearing platform is placed at the opening of the circular cooler trolley 1, a fixing port 12 matched with the receiving chute is formed in the middle of the bearing platform, when the receiving chute is replaced, the old receiving chute 4 penetrates through the fixing port 12 to be placed in the circular cooler trolley 1 and is transported to the outside through the circular cooler trolley 1, then the old receiving chute 4 is lifted out, and the new receiving chute 8 penetrates through the fixing port 12 to be placed in the circular cooler trolley 1 and is transported to the lower side of the hopper 6 through the circular cooler trolley 1.
As shown in fig. 6, the receiving platform includes a fixing frame 9 and a supporting frame, the fixing frame 9 is disposed on the circular cooler trolley 1, the supporting frame is located inside the fixing frame 9, the supporting frame includes a plurality of supporting rods vertically and horizontally disposed and fixed in the fixing frame 9, and the supporting rods 10 horizontally disposed and the supporting rods 11 vertically disposed intersect to form a fixing opening 12 matched with the receiving chute.
As shown in fig. 7, the size of the fixed frame 9 is larger than that of the charging port of the circular cooler trolley 1, the four edges of the fixed frame 9 are provided with fixing portions 13 protruding downwards, and the fixed frame 9 is stably fixed on the circular cooler trolley 1 through the fixing portions 13.
Preferably, the transversely arranged support rods 10 forming the fixed port 12 are provided with upward guide grooves, new receiving chutes 8 or old receiving chutes 4 pass through the fixed port 12 along the guide grooves and are placed on the ring cooling trolley 1, the guide grooves guide the receiving chutes, even if the fixed port 12 and the receiving chutes are not completely aligned due to the movement of the ring cooling trolley 1, the receiving chutes can also pass through the fixed port 12 and be placed on the ring cooling trolley 1 under the action of the guide grooves, the longitudinally arranged support rods 11 forming the fixed port 12 are also provided with upward guide grooves, the guide grooves of the longitudinally arranged support rods 11 and the transversely arranged guide grooves of the support rods 10 form the guide ports, and under the action of the guide ports, the receiving chutes can also pass through the fixed port 12 and be placed on the ring cooling trolley 1 under the guide action of the guide ports even if the fixed port 12 and the receiving chutes are not completely aligned.
Preferably, the number of the support rods 10 arranged in the transverse direction is two, and the number of the support rods 11 arranged in the longitudinal direction is two.
Example 1
As shown in fig. 1-5, the receiving chute is located under the floor slab 2, the floor slab 2 plays a role of fixing the hopper 6 and the dust removing pipe 7, and the receiving chute is located between the upper smoke hood 5 and the dust removing hood 3, so that after the dust removing hood 3 is lifted and the old receiving chute 4 is cut, the old receiving chute 4 needs to be transported out through the reverse rotation of the ring cooler, and then the new receiving chute 8 is transported into the ring cooler through the forward rotation of the ring cooler, so that the receiving chute can be prevented from colliding with the upper smoke hood 5 when transporting the receiving chute, the specific steps are as follows,
when the receiving chute is replaced, the position of the hopper 6 is fixed, the connection between the old receiving chute 4 and the hopper 6 is cut, the old receiving chute 4 is placed in the annular cooler trolley 1 right below, the annular cooler trolley 1 is started to rotate reversely, the old receiving chute 4 is conveyed out of the annular cooler trolley 1, and then the annular cooler is stopped; and (3) hoisting the old receiving chute 4 from the circular cooler trolley 1, hoisting the new receiving chute 8 into the circular cooler trolley 1, starting the circular cooler to rotate in the forward direction, and transporting the new receiving chute 8 to the position below the hopper 6 by the circular cooler trolley 1.
Example 2
As another embodiment of the invention, as shown in fig. 8, the receiving chute is located below the floor slab 2, the floor slab 2 plays the role of fixing the hopper 6 and the dust removing pipe 7, and one side of the receiving chute is only provided with the dust removing cover 3, after the dust removing cover 3 is lifted out, the old receiving chute 4 and the new receiving chute 8 can be transported simultaneously by the same-direction rotation of the ring type cooling machine, the concrete steps are as follows,
when changing the receiving chute, the position of fixed hopper 6, the connection of cutting old receiving chute 4 and hopper 6, place old receiving chute 4 in the cold platform truck of ring 1 under, place new receiving chute 8 in the cold platform truck of ring 1 of outside simultaneously, start ring cooler reverse rotation, the cold platform truck of ring 1 transports old receiving chute 4 outside, new receiving chute 8 gets into in the ring cooler simultaneously, then stop the ring cooler, hang out old receiving chute 4 from cold platform truck of ring 1, start the ring cooler and continue reverse rotation, transport new receiving chute 8 to hopper 6 under.
The invention reduces the times of cutting the receiving chute, only needs one-time integral cutting of the receiving chute, and transports the old receiving chute 4 and the new receiving chute 8 to the lower part of the hopper 6 through the ring cooling machine trolley 1, thereby effectively simplifying the process of replacing the receiving chute, reducing the downtime of the sintering machine and the ring cooling machine, reducing the labor intensity of maintenance and reducing the safety risk.
In the description of the present application, it is to be understood that the directions or positional relationships indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the directions or positional relationships shown in the drawings for the convenience of description and simplicity of description, and in the case of not being described to the contrary, these directional terms are not intended to indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (8)
1. A method for replacing a receiving chute of a ring cooler is characterized by comprising the following steps,
manufacturing a new receiving chute (8);
the sintering machine system is stopped, materials between the sintering machine and the ring type cooling machine are emptied, and no sintering ore is arranged on the sintering machine trolley, the old material receiving chute (4) and the ring type cooling machine trolley (1);
cutting off the connection between the dust hood (3) and the dust removal pipe (7), and hanging out the dust hood (3);
fixing the position of a hopper (6), cutting the connection between an old receiving chute (4) and the hopper (6), placing the old receiving chute (4) in a circular cooler trolley (1) right below, starting the circular cooler to rotate, conveying the old receiving chute (4) out of the circular cooler trolley by the circular cooler trolley, placing a new receiving chute (8) in the circular cooler trolley (1), starting the circular cooler to rotate, and conveying the new receiving chute (8) to the position below the hopper (6) by the circular cooler trolley;
hoisting a new material receiving chute (8) by using a chain block, butting the new material receiving chute (8) with the hopper (6), adjusting the position of the new material receiving chute (8), and welding and connecting the new material receiving chute (8) with the hopper (6);
the dust hood (3) is installed again, and the dust hood (3) is connected with the dust removal pipe (7) in a welding mode;
the annular cooler trolley (1) below the old receiving chute (4) is provided with a detachable fixing device, and the fixing device fixes the old receiving chute (4) or the new receiving chute (8) in the annular cooler trolley (1);
the fixing device is a bearing platform arranged on the circular cooler trolley (1), the bearing platform is placed at an opening of the circular cooler trolley (1), a fixing hole (12) matched with the receiving chute is formed in the middle of the bearing platform, when the receiving chute is replaced, the old receiving chute (4) penetrates through the fixing hole (12) to be placed in the circular cooler trolley (1) and is transported to the outside by the circular cooler trolley (1), then the old receiving chute (4) is lifted out, and the new receiving chute (8) penetrates through the fixing hole (12) to be placed in the circular cooler trolley (1) and is transported to the lower side of the hopper (6) by the circular cooler trolley (1).
2. The method for changing the receiving chute of the ring cooler according to claim 1, characterized in that, when the receiving chute is changed, the position of the hopper (6) is fixed, the connection between the old receiving chute (4) and the hopper (6) is cut, the old receiving chute (4) is placed in the ring cooler trolley (1) right below, the ring cooler is started to rotate reversely, the ring cooler trolley (1) transports the old receiving chute (4) out of the ring cooler trolley, and then the ring cooler is stopped; and (2) hoisting the old receiving chute (4) from the circular cooler trolley (1), hoisting the new receiving chute (8) into the circular cooler trolley (1), starting the circular cooler to rotate in the forward direction, and transporting the new receiving chute (8) to the lower part of the hopper (6) by the circular cooler trolley (1).
3. A method of ring cooler chute replacement as claimed in claim 1 or 2, characterized in that a new chute (8) is made before the sintering machine system is shut down.
4. The method for replacing the receiving chute of the ring cooler according to claim 1, wherein the receiving platform comprises a fixed frame (9) and a supporting frame, the fixed frame (9) is arranged on the ring cooler trolley (1), the supporting frame is positioned inside the fixed frame (9), the supporting frame comprises a plurality of supporting rods which are vertically and horizontally arranged and fixed in the fixed frame (9), and the supporting rods (10) which are horizontally arranged and the supporting rods (11) which are vertically arranged are intersected to form a fixed opening (12) which is matched with the receiving chute.
5. The method for changing the receiving chute of a ring cooler according to claim 4, characterized in that the size of the fixing frame (9) is larger than the size of the charging opening of the ring cooler trolley (1), the four edges of the fixing frame (9) are provided with fixing portions (13) protruding downwards, and the fixing frame (9) is stably fixed on the ring cooler trolley (1) through the fixing portions (13).
6. A method for changing a material receiving chute of a ring cooler according to claim 1, characterized in that the transversely arranged support bars (10) forming the fixing opening (12) are provided with upwardly directed guide grooves along which the new material receiving chute (8) or the old material receiving chute (4) is placed on the ring cooler trolley (1) through the fixing opening (12), the guide grooves guiding the material receiving chute.
7. A method of changing a chute of a ring cooler according to claim 6, characterised in that the longitudinally arranged support bars (11) forming the fixing openings (12) are also provided with upwardly directed guide grooves, the guide grooves of the longitudinally arranged support bars (11) and the guide grooves of the transversely arranged support bars (10) forming the guide openings.
8. A method for changing a ring cooler chute according to any one of claims 4 to 7 characterised in that the number of transversely disposed support bars (10) is two and the number of longitudinally disposed support bars (11) is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110196298.8A CN112944922B (en) | 2021-02-22 | 2021-02-22 | Method for replacing receiving chute of ring type cooling machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110196298.8A CN112944922B (en) | 2021-02-22 | 2021-02-22 | Method for replacing receiving chute of ring type cooling machine |
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| CN112944922B true CN112944922B (en) | 2022-10-14 |
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| JP2005082891A (en) * | 2003-09-10 | 2005-03-31 | Yoichi Hirose | Hydrogenation granulating treatment method and apparatus therefor |
| CN102419108B (en) * | 2011-12-02 | 2013-10-30 | 中冶长天国际工程有限责任公司 | Circulating cooling machine and method for assembling and disassembling trolley bodies thereof |
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