CN111996016A - Maintenance method for monoclinic way dry quenching furnace - Google Patents
Maintenance method for monoclinic way dry quenching furnace Download PDFInfo
- Publication number
- CN111996016A CN111996016A CN202010860633.5A CN202010860633A CN111996016A CN 111996016 A CN111996016 A CN 111996016A CN 202010860633 A CN202010860633 A CN 202010860633A CN 111996016 A CN111996016 A CN 111996016A
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- China
- Prior art keywords
- ring beam
- air passage
- annular air
- ring
- stress points
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B39/00—Cooling or quenching coke
- C10B39/02—Dry cooling outside the oven
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/02—Driving gear
- B66D1/04—Driving gear manually operated
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a maintenance method of a monoclinic channel dry quenching furnace, which adopts the combination of suspension and support to bear the gravity of an annular air channel ring beam, thereby unloading the load borne by a chute support and then maintaining the chute support. The invention relates to a maintenance method of a single-ramp dry quenching furnace, which combines suspension and support, unloads the load borne by a ramp strut, and then maintains the ramp strut, thereby improving the maintenance efficiency and avoiding potential safety hazards.
Description
Technical Field
The invention belongs to the technical field of coking, and particularly relates to a maintenance method for a monoclinic passage dry quenching furnace.
Background
In the coking production of dry quenching, because of the influence of severe operating environments such as continuous red coke charging operation, heat exchange airflow cold and hot shock, dust scouring and the like, a chute strut (commonly called a bracket) of a dry quenching furnace body is most easily damaged, and once the chute strut is cracked or broken, the whole chute and an annular air passage are collapsed. In order to prevent the serious accident, the chute struts are required to be periodically overhauled, and the ordinary overhauling method adopts a single supporting method, namely, the annular air passage ring beam is supported by the upright posts, and then the chute struts bearing the annular air passage ring beam are repaired one by one. However, the chute struts are of a masonry structure in which refractory bricks are cantilevered and stubble-thrown layer by layer, and the overall structure of the chute area is complex, so that a single supporting method can bring great potential safety hazards to maintenance work, and meanwhile, the efficiency of the maintenance work is seriously influenced.
Disclosure of Invention
In order to solve the existing problems, the invention provides a maintenance method of a single-inclined-channel dry quenching furnace, which combines suspension and support to unload the load borne by inclined-channel supports and then maintain the inclined-channel supports, thereby improving the maintenance efficiency and avoiding potential safety hazards.
In order to achieve the above object, the present invention adopts the following technical solutions.
The gravity of the annular air flue ring beam is borne by combining suspension and support, so that the load borne by the chute strut is unloaded, and then the chute strut is maintained; the method specifically comprises the following steps:
a. a furnace mouth support is built on the upper part of a dry quenching furnace mouth, six steel bars are horizontally placed on the upper part of the furnace mouth support at intervals, and each steel bar is connected with three steel wire ropes I;
b. the lower end of each steel wire rope I is connected with a chain block I, and a lifting hook of the chain block I is connected with a steel wire rope II to form 18 inner suspensions;
c. building observation hole brackets at intervals on 36 observation hole platforms, wherein the observation hole brackets are connected with a steel wire rope III, the other end of the steel wire rope III is connected with a chain block II, and a lifting hook of the chain block II is connected with a steel wire rope IV to form 18 external suspensions;
d. the inner suspension and the outer suspension are in one-to-one correspondence to form 18 suspension mechanisms;
e. uniformly placing a plurality of jacks I on the coke charge level along the circumferential direction of the inner wall of the dry quenching furnace;
f. the ring-shaped ring beam hanging plate is arranged on the jack I, and the top surface of the ring beam hanging plate is attached to the bottom of the ring beam of the annular air passage;
g. 18 outer edge through holes are uniformly distributed on the outer edge of the ring beam hanging plate along the circumferential direction, each outer edge through hole corresponds to one observation hole, 18 inner edge through holes are uniformly distributed on the inner edge of the ring beam hanging plate, the outer edge through holes and the inner edge through holes correspond to form 18 stress points one by one, and the outer edge through holes and the inner edge through holes of each stress point are distributed on the radius connecting line of the ring beam hanging plate;
h. the suspension mechanisms correspond to the stress points one by one, steel wire ropes II of the suspension mechanisms are connected with the inner edge through holes, and steel wire ropes IV of the suspension mechanisms are connected with the outer edge through holes;
i. carrying out suspension operation, selecting a first pair of symmetrical stress points, enabling the first pair of stress points to move upwards simultaneously, and carrying the gravity of the annular air passage ring beam in an equivalent and appropriate manner; then a second pair of stress points is selected along the circumferential direction of the ring beam hanging plate by 90 degrees, so that the second pair of stress points simultaneously move upwards to bear the gravity of the ring beam of the annular air passage in an equivalent and appropriate manner; then a third pair of stress points is selected along the circumferential direction of the ring beam hanging plate at 45 degrees, so that the third pair of stress points simultaneously move upwards to bear the gravity of the ring beam of the annular air passage in an equivalent and appropriate manner; in the same way, each pair of stress points is selected in sequence, and each pair of stress points moves upwards simultaneously to bear the gravity of the ring beam of the annular air passage in an equal amount and a proper amount;
j. repeating the step i for multiple times until 18 stress points uniformly bear partial gravity of the ring-shaped air passage ring beam;
k. carrying out supporting operation, selecting two mutually symmetrical annular air passage ring beams, arranging a supporting mechanism at the lower part of each annular air passage ring beam, and enabling the supporting mechanism to bear part of the gravity of the annular air passage ring beams;
synchronously maintaining the chute support posts 2 at the lower parts of the two symmetrical annular air passage ring beams 1;
and m, repeating the step k and the step l for multiple times until all the chute struts on the lower parts of the 36 annular air channel ring beams are repaired.
Further, the suspension operation is to synchronously pull the chain block I in each pair of suspension mechanisms and then synchronously pull the chain block II.
Furthermore, the supporting mechanism comprises a base, a jack II, a supporting beam and an arch support, wherein the base is arranged on the coke charge level, the jack II is arranged on the base, the supporting beam is arranged at the top of the jack II, and the arch support is arranged at the upper part of the supporting beam.
The invention relates to a maintenance method of a single-ramp dry quenching furnace, which combines suspension and support, unloads the load borne by a ramp strut, and then maintains the ramp strut, thereby improving the maintenance efficiency and avoiding potential safety hazards.
Drawings
Fig. 1 is a schematic sectional front view of the present invention.
FIG. 2 is a schematic top view of the furnace mouth support of the present invention.
Fig. 3 is a schematic view of the support mechanism of the present invention supporting an annular airway collar.
Detailed Description
The present invention will be described in further detail below with reference to the attached drawings so as to be more clearly understood by those skilled in the art.
Examples of the invention
As shown in fig. 1 and 2, the invention adopts the gravity of the annular air flue ring beam 1 which is supported by the suspension and support, thereby unloading the load carried by the chute strut 2 and then maintaining the chute strut; the method specifically comprises the following steps:
a. a furnace mouth support 4 is built on the upper part of a dry quenching furnace mouth 3, six steel bars 5 are horizontally placed on the upper part of the furnace mouth support at intervals, and each steel bar is connected with three steel wire ropes I8, so that 18 steel wire ropes are provided;
b. the lower end of each steel wire rope I is connected with a chain block I9, and a lifting hook of the chain block I is connected with a steel wire rope II 10 to form 18 inner suspensions;
c. the method comprises the following steps that observation hole supports 11 are built on 36 observation hole platforms at intervals, so that 18 observation hole supports are total, each observation hole support is connected with a steel wire rope III 12, the other end of the steel wire rope III is connected with a chain block II 13, and a lifting hook of the chain block II is connected with a steel wire rope IV 14, so that 18 external suspensions are formed;
d. the inner suspension and the outer suspension are in one-to-one correspondence to form 18 suspension mechanisms;
e. uniformly placing a plurality of jacks I6 on the coke charge level along the circumferential direction of the inner wall of the dry quenching furnace;
f. arranging a ring-shaped ring beam hanging plate 7 on the jack I, and enabling the top surface of the ring beam hanging plate to be attached to the bottom of the ring beam 1 of the annular air passage;
g. 18 outer edge through holes are uniformly distributed on the outer edge of the ring beam hanging plate along the circumferential direction, each outer edge through hole corresponds to one observation hole, 18 inner edge through holes are uniformly distributed on the inner edge of the ring beam hanging plate, the outer edge through holes and the inner edge through holes correspond to form 18 stress points one by one, and the outer edge through holes and the inner edge through holes of each stress point are distributed on the radius connecting line of the ring beam hanging plate;
h. the suspension mechanisms correspond to the stress points one by one, steel wire ropes II of the suspension mechanisms are connected with the inner edge through holes, and steel wire ropes IV of the suspension mechanisms are connected with the outer edge through holes;
i. carrying out suspension operation, selecting a first pair of symmetrical stress points, enabling the first pair of stress points to move upwards simultaneously, and carrying the gravity of the annular air passage ring beam in an equivalent and appropriate manner; then a second pair of stress points is selected along the circumferential direction of the ring beam hanging plate by 90 degrees, so that the second pair of stress points simultaneously move upwards to bear the gravity of the ring beam of the annular air passage in an equivalent and appropriate manner; then a third pair of stress points is selected along the circumferential direction of the ring beam hanging plate at 45 degrees, so that the third pair of stress points simultaneously move upwards to bear the gravity of the ring beam of the annular air passage in an equivalent and appropriate manner; in the same way, each pair of stress points is selected in sequence, and each pair of stress points moves upwards simultaneously to bear the gravity of the ring beam of the annular air passage in an equal amount and a proper amount;
j. repeating the step i for multiple times until 18 stress points uniformly bear partial gravity of the ring-shaped air passage ring beam;
k. carrying out supporting operation, as shown in fig. 3, selecting two mutually symmetrical annular air passage ring beams, arranging a supporting mechanism at the lower part of each annular air passage ring beam, and enabling the supporting mechanism to bear partial gravity of the annular air passage ring beams;
synchronously maintaining the chute support columns at the lower parts of the two symmetrical annular air passage ring beams;
and m, repeating the step k and the step l for multiple times until all the chute struts on the lower parts of the 36 annular air channel ring beams are repaired.
Further, the suspension operation is to synchronously pull the chain block I in each pair of suspension mechanisms and then synchronously pull the chain block II.
Furthermore, the supporting mechanism comprises a base 15, a jack II 16, a supporting beam 17 and an arch support 18, wherein the base is arranged on the coke charge level, the jack II is arranged on the base, the supporting beam is arranged at the top of the jack II, and the arch support is arranged at the upper part of the supporting beam.
The invention relates to a maintenance method of a single-ramp dry quenching furnace, which combines suspension and support, unloads the load borne by a ramp strut, and then maintains the ramp strut, thereby improving the maintenance efficiency and avoiding potential safety hazards.
Claims (3)
1. A maintenance method of a single-inclined-way dry quenching furnace is characterized in that the gravity of a ring-shaped air-way ring beam (1) is borne by combining suspension and support, so that the load borne by an inclined-way support (2) is unloaded, and then the inclined-way support is maintained; the method specifically comprises the following steps:
a. a furnace mouth support (4) is built on the upper part of a dry quenching furnace mouth (3), six steel rods (5) are horizontally placed on the upper part of the furnace mouth support at intervals, and each steel rod is connected with three steel wire ropes I (8);
b. the lower end of each steel wire rope I is connected with a chain block I (9), and a lifting hook of the chain block I is connected with a steel wire rope II (10) to form 18 inner suspensions;
c. building observation hole brackets (11) on 36 observation hole platforms at intervals, wherein the observation hole brackets are connected with a steel wire rope III (12), the other end of the steel wire rope III is connected with a chain block II (13), and a lifting hook of the chain block II is connected with a steel wire rope IV (14) to form 18 external suspensions;
d. the inner suspension and the outer suspension are in one-to-one correspondence to form 18 suspension mechanisms;
e. uniformly placing a plurality of jacks I (6) on the coke charge level along the circumferential direction of the inner wall of the dry quenching furnace;
f. arranging a ring-shaped ring beam hanging plate (7) on the jack I, and enabling the top surface of the ring beam hanging plate to be attached to the bottom of the ring beam (1) with the annular air passage;
g. 18 outer edge through holes are uniformly distributed on the outer edge of the ring beam hanging plate along the circumferential direction, each outer edge through hole corresponds to one observation hole, 18 inner edge through holes are uniformly distributed on the inner edge of the ring beam hanging plate, the outer edge through holes and the inner edge through holes correspond to form 18 stress points one by one, and the outer edge through holes and the inner edge through holes of each stress point are distributed on the radius connecting line of the ring beam hanging plate;
h. the suspension mechanisms correspond to the stress points one by one, steel wire ropes II of the suspension mechanisms are connected with the inner edge through holes, and steel wire ropes IV of the suspension mechanisms are connected with the outer edge through holes;
i. carrying out suspension operation, selecting a first pair of symmetrical stress points, enabling the first pair of stress points to move upwards simultaneously, and carrying the gravity of the annular air passage ring beam in an equivalent and appropriate manner; then a second pair of stress points is selected along the circumferential direction of the ring beam hanging plate by 90 degrees, so that the second pair of stress points simultaneously move upwards to bear the gravity of the ring beam of the annular air passage in an equivalent and appropriate manner; then a third pair of stress points is selected along the circumferential direction of the ring beam hanging plate at 45 degrees, so that the third pair of stress points simultaneously move upwards to bear the gravity of the ring beam of the annular air passage in an equivalent and appropriate manner; in the same way, each pair of stress points is selected in sequence, and each pair of stress points moves upwards simultaneously to bear the gravity of the ring beam of the annular air passage in an equal amount and a proper amount;
j. repeating the step i for multiple times until 18 stress points uniformly bear partial gravity of the ring-shaped air passage ring beam;
k. carrying out supporting operation, selecting two mutually symmetrical annular air passage ring beams, arranging a supporting mechanism at the lower part of each annular air passage ring beam, and enabling the supporting mechanism to bear part of the gravity of the annular air passage ring beams;
i, synchronously maintaining the chute support posts (2) at the lower parts of the two symmetrical annular air passage ring beams (1);
and m, repeating the step k and the step l for multiple times until all the chute struts on the lower parts of the 36 annular air channel ring beams are repaired.
2. The maintenance method of the monoclinic track dry quenching furnace of claim 1, characterized in that: and the suspension operation is to synchronously pull the chain block I in each pair of suspension mechanisms and then synchronously pull the chain block II.
3. The maintenance method of the monoclinic track dry quenching furnace of claim 1 or 2, characterized in that: the supporting mechanism comprises a base (15), a jack II (16), a supporting beam (17) and an arch support (18), wherein the base is arranged on the coke charge level, the jack II is arranged on the base, the supporting beam is arranged at the top of the jack II, and the arch support is arranged on the upper part of the supporting beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010860633.5A CN111996016A (en) | 2020-08-25 | 2020-08-25 | Maintenance method for monoclinic way dry quenching furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010860633.5A CN111996016A (en) | 2020-08-25 | 2020-08-25 | Maintenance method for monoclinic way dry quenching furnace |
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| CN111996016A true CN111996016A (en) | 2020-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010860633.5A Pending CN111996016A (en) | 2020-08-25 | 2020-08-25 | Maintenance method for monoclinic way dry quenching furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113185989A (en) * | 2021-04-15 | 2021-07-30 | 五冶集团上海有限公司 | Whole replacement method of large castable prefabricated part for inclined air duct masonry of dry quenching furnace |
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2020
- 2020-08-25 CN CN202010860633.5A patent/CN111996016A/en active Pending
Patent Citations (7)
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| CN109810716A (en) * | 2019-04-02 | 2019-05-28 | 攀钢集团工程技术有限公司 | The construction method replaced simultaneously for coke dry quenching furnace bracket brick and cooling section masonry |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113185989A (en) * | 2021-04-15 | 2021-07-30 | 五冶集团上海有限公司 | Whole replacement method of large castable prefabricated part for inclined air duct masonry of dry quenching furnace |
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