CN114752715B

CN114752715B - Long-acting type hot splashing slag furnace pit

Info

Publication number: CN114752715B
Application number: CN202210365341.3A
Authority: CN
Inventors: 董秀勇
Original assignee: Jiangxi Taixin Iron And Steel Co ltd
Current assignee: Jiangxi Taixin Iron And Steel Co ltd
Priority date: 2022-04-07
Filing date: 2022-04-07
Publication date: 2023-03-24
Anticipated expiration: 2042-04-07
Also published as: CN114752715A

Abstract

The invention relates to the technical field of hot splashing slag furnace pits, and discloses a long-acting hot splashing slag furnace pit, which solves the problems that a steel billet is deformed by heating, the steel billet is inconvenient to replace, and the pollution of dust-containing smoke generated in the hot splashing production operation process to the environment is large; the damaged steel blank side plate is convenient to replace, the content of impurities and dust in smoke is reduced, and the pollution to the environment is reduced.

Description

Long-acting type hot splashing slag furnace pit

Technical Field

The invention belongs to the technical field of hot splashing slag furnace pits, and particularly relates to a long-acting hot splashing slag furnace pit.

Background

The steel slag is waste slag generated in the metallurgical industry, the generation rate of the steel slag is 8% -15% of the yield of crude steel, the steel slag is regarded as waste to be discarded in the past, and the environmental pollution is caused, along with the continuous innovation research and development of a steel slag treatment process, the recycling and the reutilization of steel slag resources are continuously enhanced, and the steel slag becomes a high-quality raw material in the building material industry.

The hot splashing treatment of the steel slag is carried out in a hot splashing slag furnace pit, the wall of the traditional hot splashing slag furnace pit is generally formed by directly welding steel billets in reinforcing steel bars on a cement wall, but the temperature in the steel slag pouring pool is very high, the steel billets are heated and deformed, the steel billets are not convenient to replace, and the pollution of dust-containing smoke generated in the hot splashing production operation process to the environment is large.

Disclosure of Invention

Aiming at the situation, in order to overcome the defects of the prior art, the invention provides the long-acting hot splashing slag furnace pit which effectively solves the problems that in the background technology, a steel billet is subjected to thermal deformation, the steel billet is inconvenient to replace, and dust-containing smoke generated in the hot splashing production operation process has great pollution to the environment.

In order to achieve the purpose, the invention provides the following technical scheme: a long-acting hot splashing slag furnace pit comprises a hot splashing slag furnace pit body, wherein a steel blank base is arranged in the hot splashing slag furnace pit body, two first fixing blocks are embedded in the inner wall of the bottom of the hot splashing slag furnace pit body, a first clamping groove is formed in the top of each first fixing block, two clamping blocks are fixedly connected to the bottom of each steel blank base, a plurality of second clamping grooves are formed in the top of each steel blank base, a plurality of steel blank side plates are arranged in the hot splashing slag furnace pit body, clamping plates are fixedly connected to the bottoms of the steel blank side plates, four first fixing plates are embedded in the inner wall of the hot splashing slag furnace pit body, a plurality of first sliding grooves are formed in one sides of the first fixing plates, the inner walls of the tops of the first sliding grooves are communicated with the tops of the first fixing plates, sliding blocks are fixedly connected to one sides of the steel blank side plates, fixing seats are fixedly connected to the tops of the steel blank side plates, the fixing seats are connected with the hot splashing slag furnace pit body through steel blank positioning components, and a dedusting, filtering and collecting component is arranged on the hot splashing slag furnace pit body;

the dust removal filters and collects the subassembly including setting up in the suction hood of hot splashing slag pit body top, the top of suction hood is equipped with the gas collecting tank, the both sides of gas collecting tank all are equipped with the rose box, gas collecting tank and rose box pass through the connecting pipe and connect, one side of rose box is equipped with the mounting panel, mounting panel and rose box pass through first connecting plate and connect, mounting panel and hot splashing slag pit body support fixed unit through removing dust and connect, be equipped with the case lid on the rose box, and the top of rose box is located the case lid, be equipped with the blast pipe on the case lid, the case lid is equipped with dust removal filter unit.

Preferably, the steel billet anti-falling positioning assembly comprises a plurality of second fixed blocks arranged at the top of the hot splashing slag furnace pit body, the second fixed blocks are fixedly connected with the hot splashing slag furnace pit body, one side of each second fixed block is provided with a limit hole, the top of each fixing base is provided with a first through hole, one inner wall of each first through hole is provided with a groove, the other inner wall of each first through hole is provided with a second through hole, one side of each fixing base is provided with a second connecting plate, one side of each second connecting plate is fixedly connected with a limiting plate, and the second connecting plates are connected with the fixing bases through reset units.

Preferably, the reset unit includes a second fixing plate arranged at the top of the fixing seat, the second fixing plate is fixedly connected with the fixing seat, a second sliding groove is formed in one side of the second fixing plate, a sliding plate is arranged in the second sliding groove, one side of the sliding plate is connected with the inner wall of one side of the second sliding groove through a first extension spring, and the other side of the sliding plate is fixedly connected with one side of the second connecting plate.

Preferably, the rectangular hole has been seted up to the top inner wall of second spout, and the top fixedly connected with push pedal of slide, and the push pedal runs through the rectangular hole, and the second fixed block is located first through-hole, and the limiting plate runs through second through-hole and spacing hole, and the one end of limiting plate is located the recess.

Preferably, the fixture block is located in the first clamping groove, and the clamping plate is located in the second clamping groove.

Preferably, the dust removal support fixing unit comprises two supporting disks arranged at the bottom of the mounting plate, the bottom of each supporting disk is connected with the hot splashing slag furnace pit body through a first fixing column, a threaded column is fixedly connected to the top of each supporting disk, the threaded column penetrates through the mounting plate, and a nut is sleeved outside the threaded column.

Preferably, the dust removal filter unit is including setting up the filter in the rose box, and the top of filter is connected through two spliced poles with the top inner wall of case lid, and the outside cover of filter is equipped with the sealing washer, and the sealing washer contacts with the inner wall of rose box.

Preferably, the sliding block is located in the first sliding groove, and the cross sections of the first sliding groove and the sliding block are both T-shaped structures.

Preferably, the both sides of case lid all are equipped with the fly leaf, two second fixed columns of the equal fixedly connected with in both sides of rose box, and the second fixed column runs through the fly leaf, and the outside cover of second fixed column is equipped with second extension spring, and second extension spring's both ends respectively with rose box and fly leaf fixed connection, the spacing groove has all been seted up to the both sides of case lid, one side fixedly connected with stopper of fly leaf.

Preferably, two the stopper is located the one side that two movable plates are close to respectively, and the stopper is located the spacing inslot, and the top fixedly connected with of rose box is sealed to fill up, and the top of sealed pad contacts with the top inner wall of case lid.

Compared with the prior art, the invention has the beneficial effects that:

(1) The exhaust pipe is externally connected with air extraction equipment, dust-containing smoke generated in the hot splashing production operation process is collected through the dust hood, enters the filter box through the gas collection box and the connecting pipe, and is filtered through the filter plate, so that the content of impurities and dust in the smoke is reduced, and the pollution to the environment is reduced;

(2) The movable plate is driven to move, so that the second extension spring is in a stretching state, the limiting block is separated from the limiting groove, the limiting on the position of the box cover is removed, the box cover is driven to move upwards, the top end of the filter box is separated from the box cover, the box cover can be detached, the impurities filtered in the filter box can be conveniently cleaned, and meanwhile, the filter plate is conveniently cleaned;

(3) The nut is separated from the threaded column by driving the nut to rotate, the fixing of the mounting plate is released, the mounting plate is driven to move upwards, the threaded column is separated from the mounting plate, and the dust hood and the gas collection box can be detached;

(4) The utility model discloses a steel billet spare curb plate, including the fixed plate of limiting plate, the fixed plate of sliding plate drive second connecting plate, remove through the drive push pedal, make sliding plate drive second connecting plate remove, first extension spring is in tensile state, and then make the one end of limiting plate break away from recess and spacing hole, remove the fixed relation between second fixed block and the fixing base, and then remove the spacing to fixing base and steel billet spare curb plate position, shift up through drive steel billet spare curb plate, make the slider break away from first spout, and the cardboard breaks away from the second draw-in groove, can accomplish dismantling of steel billet spare curb plate, be convenient for change the steel billet spare curb plate that damages.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.

In the drawings:

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure of the dust hood of the present invention;

FIG. 3 is a schematic view of a portion of the enlarged structure at A in FIG. 2;

FIG. 4 is a schematic structural view of a filter box according to the present invention;

FIG. 5 is a schematic structural view of a hot slag splashing furnace pit body according to the present invention;

FIG. 6 is a schematic structural diagram of a base of a steel blank according to the present invention;

FIG. 7 is a schematic structural view of a side plate of a steel blank according to the present invention;

FIG. 8 is a sectional view of the fixing base of the present invention;

in the figure: 1. a hot splashing slag pit body; 2. a steel billet base; 3. a first fixed block; 4. a first card slot; 5. a clamping block; 6. a second card slot; 7. a steel blank side plate; 8. clamping a plate; 9. a first fixing plate; 10. a first chute; 11. a slider; 12. a fixed seat; 13. a dust hood; 14. a gas collection tank; 15. a filter box; 16. a connecting pipe; 17. mounting a plate; 18. a first connecting plate; 19. a box cover; 20. an exhaust pipe; 21. a second fixed block; 22. a limiting hole; 23. a first through hole; 24. a groove; 25. a second through hole; 26. a limiting plate; 27. a second connecting plate; 28. a slide plate; 29. a second chute; 30. a first extension spring; 31. a rectangular hole; 32. pushing the plate; 33. a first fixed column; 34. a support disc; 35. a threaded post; 36. a nut; 37. a movable plate; 38. a limiting groove; 39. a limiting block; 40. a second fixed column; 41. a second extension spring; 42. a filter plate; 43. connecting columns; 44. a seal ring; 45. a gasket; 46. and a second fixing plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In a first embodiment, as shown in fig. 1 to 8, the slag splashing filter pit comprises a hot splashing slag furnace pit body 1, a steel blank base 2 is arranged in the hot splashing slag furnace pit body 1, two first fixing blocks 3 are embedded in the inner wall of the bottom of the hot splashing slag furnace pit body 1, a first clamping groove 4 is formed in the top of each first fixing block 3, two clamping blocks 5 are fixedly connected to the bottom of the steel blank base 2, a plurality of second clamping grooves 6 are formed in the top of the steel blank base 2, a plurality of steel blank side plates 7 are arranged in the hot splashing slag furnace pit body 1, clamping plates 8 are fixedly connected to the bottoms of the steel blank side plates 7, four first fixing plates 9 are embedded in the inner wall of the hot splashing slag furnace pit body 1, a plurality of first sliding grooves 10 are formed in one side of each first fixing plate 9, the inner wall of the top of each first sliding groove 10 is communicated with the top of the corresponding first fixing plate 9, a sliding block 11 is fixedly connected to one side of each steel blank side plate 7, a fixing seat 12 is fixedly connected to the top of each steel blank side plate 7, the fixing seats 12 and the hot splashing slag furnace pit body 1 are connected through a steel blank anti-off positioning component, and a dust removing filter slag collecting component is arranged on the hot splashing furnace pit body 1;

the dust removal filtration collection assembly comprises a dust hood 13 arranged above a hot slag splashing furnace pit body 1, a gas collecting box 14 is arranged at the top of the dust hood 13, filter boxes 15 are arranged on two sides of the gas collecting box 14, the gas collecting box 14 is connected with the filter boxes 15 through a connecting pipe 16, a mounting plate 17 is arranged on one side of each filter box 15, the mounting plate 17 is connected with the filter boxes 15 through a first connecting plate 18, the mounting plate 17 is connected with the hot slag splashing furnace pit body 1 through a dust removal supporting and fixing unit, a box cover 19 is arranged on each filter box 15, the top end of each filter box 15 is located in the box cover 19, an exhaust pipe 20 is arranged on the box cover 19, and the box cover 19 is provided with a dust removal filtering unit.

In the second embodiment, based on the first embodiment, as shown in fig. 1, 6, 7 and 8, the steel blank anti-falling positioning assembly includes a plurality of second fixing blocks 21 disposed at the top of the hot slag splashing furnace pit body 1, the second fixing blocks 21 are fixedly connected with the hot slag splashing furnace pit body 1, one side of each second fixing block 21 is provided with a limiting hole 22, the top of the fixing base 12 is provided with a first through hole 23, the inner wall of one side of each first through hole 23 is provided with a groove 24, the inner wall of the other side of each first through hole 23 is provided with a second through hole 25, one side of the fixing base 12 is provided with a second connecting plate 27, one side of each second connecting plate 27 is fixedly connected with a limiting plate 26, the second connecting plate 27 is connected with the fixing base 12 through a resetting unit, the resetting unit includes a second fixing plate 46 disposed at the top of the fixing base 12, the second fixing plate 46 is fixedly connected with the fixing base 12, one side of the second fixing plate 46 is provided with a second sliding chute 29, a sliding plate 28 is disposed in the second chute 29, one side of the sliding plate 28 is connected with one side of the second sliding plate 29, one side of the sliding plate 28 is provided with a rectangular through hole 32, and the pushing plate 32 is disposed in the through hole 32, and the through hole 32 of the rectangular through hole 22 is disposed in the through hole 22;

remove through drive push pedal 32, make slide 28 drive second connecting plate 27 remove, first extension spring 30 is in tensile state, and then make the one end of limiting plate 26 break away from recess 24 and spacing hole 22, remove the fixed relation between second fixed block 21 and the fixing base 12, and then remove spacing to fixing base 12 and steel blank curb plate 7 position, move up through drive steel blank curb plate 7, make slider 11 break away from first spout 10, and cardboard 8 breaks away from second draw-in groove 6, can accomplish demolising of steel blank curb plate 7, be convenient for change the steel blank curb plate 7 of damage.

In the third embodiment, based on the first embodiment, as shown in fig. 1, 2, 6 and 7, the fixture block 5 is located in the first clamping groove 4, the clamping plate 8 is located in the second clamping groove 6, the dust removing supporting and fixing unit includes two supporting plates 34 arranged at the bottom of the mounting plate 17, the bottom of the supporting plate 34 is connected with the hot splashing slag pit body 1 through a first fixing column 33, the top of the supporting plate 34 is fixedly connected with a threaded column 35, the threaded column 35 penetrates through the mounting plate 17, a nut 36 is sleeved outside the threaded column 35, the slider 11 is located in the first sliding groove 10, and the cross sections of the first sliding groove 10 and the slider 11 are both T-shaped structures;

rotate through drive nut 36 for nut 36 breaks away from screw thread post 35, removes the fixed to mounting panel 17, and then the drive mounting panel 17 moves up, makes screw thread post 35 break away from mounting panel 17, can accomplish the demolition of suction hood 13 and gas collection box 14, demolish the back that finishes when steel billet curb plate 7, drive steel billet base 2 shifts up, make fixture block 5 break away from first draw-in groove 4, can accomplish the demolition of steel billet base 2, be convenient for change steel billet base 2.

Fourth embodiment, on the basis of the first embodiment, as shown in fig. 1, 2, 3, and 4, the dust removal filtering unit includes a filter plate 42 disposed in the filter box 15, the top of the filter plate 42 is connected to the inner wall of the top of the box cover 19 through two connecting columns 43, a sealing ring 44 is sleeved outside the filter plate 42, the sealing ring 44 contacts the inner wall of the filter box 15, movable plates 37 are disposed on both sides of the box cover 19, two second fixed columns 40 are fixedly connected to both sides of the filter box 15, the second fixed columns 40 penetrate through the movable plates 37, a second extension spring 41 is sleeved outside the second fixed columns 40, both ends of the second extension spring 41 are respectively fixedly connected to the filter box 15 and the movable plates 37, a limiting groove 38 is disposed on both sides of the box cover 19, a limiting block 39 is fixedly connected to one side of the movable plates 37, the two limiting blocks 39 are respectively disposed on one side of the two movable plates 37, the limiting block 39 is disposed in the limiting groove 38, a sealing gasket 45 is fixedly connected to the top of the filter box cover 15, and the top of the sealing gasket 45 contacts the inner wall of the top of the box cover 19;

external air extraction equipment of blast pipe 20, collect the dirty smog that hot application production operation in-process produced through suction hood 13, dirty smog enters into rose box 15 through gas collection box 14 and connecting pipe 16 in, filter through filter 42, reduce the content of impurity and dust in the smog, the pollution to the environment has been reduced, remove through drive fly leaf 37, make second extension spring 41 be in tensile state, and then make stopper 39 break away from spacing groove 38, relieve the spacing to case lid 19 position, move up through drive case lid 19, make the top of rose box 15 break away from case lid 19, can accomplish dismantling of case lid 19, be convenient for clear up the impurity of crossing off in the rose box 15, be convenient for clear up filter 42 simultaneously.

The working principle is as follows: during operation, the exhaust pipe 20 is externally connected with an air extractor, dust-containing smoke generated in the hot splashing production process is collected through the dust hood 13, the dust-containing smoke enters the filter box 15 through the gas collecting box 14 and the connecting pipe 16 and is filtered through the filter plate 42, the content of impurities and dust in the smoke is reduced, the pollution to the environment is reduced, the second stretching spring 41 is in a stretching state through driving the movable plate 37 to move, the limit block 39 is separated from the limit groove 38, the limit on the position of the box cover 19 is removed, the top end of the filter box 15 is separated from the box cover 19 through driving the box cover 19 to move upwards, the box cover 19 can be removed, the filtered impurities in the filter box 15 can be conveniently cleaned, meanwhile, the filter plate 42 is conveniently cleaned, the nut 36 is driven to rotate, the nut 36 is separated from the threaded column 35, the fixing of the mounting plate 17 is removed, then the mounting plate 17 is driven to move upwards, so that the threaded column 35 is separated from the mounting plate 17, the dust hood 13 and the gas collection box 14 can be removed, the sliding plate 28 drives the second connecting plate 27 to move through driving the push plate 32 to move, the first tension spring 30 is in a tension state, one end of the limiting plate 26 is separated from the groove 24 and the limiting hole 22, the fixed relation between the second fixing block 21 and the fixing seat 12 is released, the limiting on the positions of the fixing seat 12 and the steel blank side plate 7 is released, the sliding block 11 is separated from the first sliding groove 10 through driving the steel blank side plate 7 to move upwards, the clamping plate 8 is separated from the second clamping groove 6, the steel blank side plate 7 can be removed, the damaged steel blank side plate 7 can be replaced conveniently, after the steel blank side plate 7 is removed, the steel blank base 2 is driven to move upwards, so that the clamping block 5 is separated from the first clamping groove 4, and the steel blank base 2 can be removed, the steel billet base 2 is convenient to replace.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a long-term type hot splashing slag stove pit, includes hot splashing slag stove pit body (1), its characterized in that: a steel blank piece base (2) is arranged in the hot splashing slag furnace pit body (1), two first fixing blocks (3) are embedded in the inner wall of the bottom of the hot splashing slag furnace pit body (1), first clamping grooves (4) are formed in the tops of the first fixing blocks (3), two clamping blocks (5) are fixedly connected to the bottom of the steel blank piece base (2), a plurality of second clamping grooves (6) are formed in the top of the steel blank piece base (2), a plurality of steel blank piece side plates (7) are arranged in the hot splashing slag furnace pit body (1), clamping plates (8) are fixedly connected to the bottoms of the steel blank piece side plates (7), four first fixing plates (9) are embedded in the inner wall of the hot splashing slag furnace pit body (1), a plurality of first sliding grooves (10) are formed in one side of each first fixing plate (9), the inner wall of the top of each first sliding groove (10) is communicated with the top of each first fixing plate (9), a sliding block (11) is fixedly connected to one side of each steel blank piece side plate (7), a fixing seat (12) is fixedly connected to the top of each steel blank piece side plate (7), the fixing seats (12) and the hot splashing slag furnace pit body (1) are connected through a hot splashing slag-removing component, and a hot splashing slag filtering and collecting component of the steel blank furnace pit body (1);

the dust removal filtering and collecting assembly comprises a dust hood (13) arranged above a hot slag splashing furnace pit body (1), a gas collecting box (14) is arranged at the top of the dust hood (13), filter boxes (15) are arranged on two sides of the gas collecting box (14), the gas collecting box (14) is connected with the filter boxes (15) through connecting pipes (16), an installation plate (17) is arranged on one side of each filter box (15), the installation plate (17) is connected with the filter boxes (15) through a first connecting plate (18), the installation plate (17) is connected with the hot slag splashing furnace pit body (1) through a dust removal supporting and fixing unit, a box cover (19) is arranged on each filter box (15), the top end of each filter box (15) is located in the box cover (19), an exhaust pipe (20) is arranged on each box cover (19), and each box cover (19) is provided with a dust removal filtering unit; the steel blank anti-falling positioning assembly comprises a plurality of second fixing blocks (21) arranged at the top of a hot splashing slag furnace pit body (1), the second fixing blocks (21) are fixedly connected with the hot splashing slag furnace pit body (1), limiting holes (22) are formed in one side of each second fixing block (21), first through holes (23) are formed in the top of a fixing seat (12), grooves (24) are formed in the inner wall of one side of each first through hole (23), second through holes (25) are formed in the inner wall of the other side of each first through hole (23), a second connecting plate (27) is arranged on one side of the fixing seat (12), one side of each second connecting plate (27) is fixedly connected with a limiting plate (26), and the second connecting plate (27) and the fixing seat (12) are connected through a reset unit.

2. The long-acting hot-splashing slag furnace pit according to claim 1, characterized in that: the reset unit comprises a second fixing plate (46) arranged at the top of the fixing seat (12), the second fixing plate (46) is fixedly connected with the fixing seat (12), a second sliding groove (29) is formed in one side of the second fixing plate (46), a sliding plate (28) is arranged in the second sliding groove (29), one side of the sliding plate (28) is connected with the inner wall of one side of the second sliding groove (29) through a first stretching spring (30), and the other side of the sliding plate (28) is fixedly connected with one side of a second connecting plate (27).

3. The long-acting hot slag splashing furnace pit according to claim 2, characterized in that: rectangular hole (31) have been seted up to the top inner wall of second spout (29), and top fixedly connected with push pedal (32) of slide (28), and push pedal (32) run through rectangular hole (31), and second fixed block (21) are located first through-hole (23), and second through-hole (25) and spacing hole (22) are run through to limiting plate (26), and the one end of limiting plate (26) is located recess (24).

4. The long-acting hot-splashing slag furnace pit according to claim 1, characterized in that: the clamping block (5) is located in the first clamping groove (4), and the clamping plate (8) is located in the second clamping groove (6).

5. The long-acting hot-splashing slag furnace pit according to claim 1, characterized in that: the dedusting supporting and fixing unit comprises two supporting disks (34) arranged at the bottom of the mounting plate (17), the bottom of each supporting disk (34) is connected with the hot slag splashing furnace pit body (1) through a first fixing column (33), the top of each supporting disk (34) is fixedly connected with a threaded column (35), each threaded column (35) penetrates through the mounting plate (17), and a nut (36) is sleeved outside each threaded column (35).

6. The long-acting hot-splashing slag furnace pit according to claim 1, characterized in that: the dust removal filter unit is connected through two spliced poles (43) including setting up filter (42) in rose box (15), the top of filter (42) and the top inner wall of case lid (19), and the outside cover of filter (42) is equipped with sealing washer (44), and sealing washer (44) contact with the inner wall of rose box (15).

7. The long-acting hot-splashing slag furnace pit according to claim 1, characterized in that: the sliding block (11) is positioned in the first sliding groove (10), and the cross sections of the first sliding groove (10) and the sliding block (11) are both of T-shaped structures.

8. The long-acting hot-splashing slag furnace pit according to claim 1, characterized in that: both sides of case lid (19) all are equipped with fly leaf (37), two second fixed columns (40) of the equal fixedly connected with in both sides of rose box (15), fly leaf (37) are run through in second fixed column (40), the outside cover of second fixed column (40) is equipped with second extension spring (41), and the both ends of second extension spring (41) respectively with rose box (15) and fly leaf (37) fixed connection, spacing groove (38) have all been seted up to the both sides of case lid (19), one side fixedly connected with stopper (39) of fly leaf (37).

9. The long-acting hot-splashing slag furnace pit according to claim 8, characterized in that: two stopper (39) are located two fly leaf (37) one side that is close to mutually respectively, and stopper (39) are located spacing groove (38), and the sealed pad (45) of top fixedly connected with of rose box (15), and the top of sealed pad (45) contacts with the top inner wall of case lid (19).