CN217179289U - Device for reducing faults of discharging chute of sintering vertical cooling furnace - Google Patents

Abstract

The utility model relates to a reduce device of sintering vertical cooling furnace unloading elephant trunk trouble, including unloading elephant trunk lower half (1.1), first (1.2) of unloading elephant trunk, set up the quick overhaul device and the unloading elephant trunk automatic monitoring of unloading elephant trunk on unloading elephant trunk lower half (1.1) and report to the police. The technical problem that prior art exists can thoroughly be solved after this technical scheme implements, reaches extension unloading elephant trunk wearing and tearing cycle after technical scheme synthesizes implements, and quick replacement damages the inside lining, and the inside wearing and tearing condition of automatic monitoring unloading elephant trunk lower half is convenient for accomplish the prevention in advance and is known the wearing and tearing condition and then know equipment service behavior.

Description

Device for reducing faults of discharging chute of sintering vertical cooling furnace

Technical Field

The utility model relates to a reduce device of sintering vertical cooling furnace unloading elephant trunk trouble belongs to sintering sensible heat waste heat recovery technical field.

Background

The sintering process is that iron ore powder, flux and fuel are mixed with proper water content, and the mixture is made to melt or soften by means of the high temperature produced by the fuel to produce chemical and physical reaction to produce certain amount of liquid phase, which is cooled and adhered to form block. The temperature of the sintered ore bonded into blocks is about 550 ℃, and the traditional sintering machine depends on a mode of cooling the hot sintered ore by a circular cooler. But the blast volume is as large as 2200Nm3/t, and the cooling power consumption of the sinter is high; the dust emission is serious; the ring cooling air leakage rate is as high as 25%. In order to improve the cooling effect, the 198m2 circular cooler of the plum steel 3# sintering machine is modified into a vertical cooling furnace to cool the sintered ore. The process flow of the sintered ore in the vertical cooling furnace sintering and cooling process is as follows: sintered mature ore of a sintering machine → hot crushing (0-150 mm) of a single-roller crusher → a discharging chute → a feeding trolley → a top bin of a vertical cooling furnace → a vertical cooling hearth → a conical hopper at the lower part of a hearth → a discharging machine → a belt conveyor → screening. The technological process of vertical cooling furnace cooling sintering ore is shown in the attached figure 1: schematic flow chart of sintering ore in vertical sintering furnace process.

Wherein, the whole vertical cooling furnace is required to be shut down once the blanking chute fault occurs, and meanwhile, the damaged part is packed and repair-welded, so that the fault influence time is long. And (4) counting shutdown fault shutdown time of the vertical cooling furnace from 1 month and 1 day to 7 months and 10 days in 2019 after the vertical cooling furnace is put into operation.

And (4) counting the accumulated downtime 531.35h by using the downtime of the focusing sintering vertical cooling furnace body and the auxiliary system. Wherein the total failure time is 21.5 percent due to the fact that the failure time of material leakage rectification is 114.13 h. Therefore, the problems of material leakage of the blanking chute are solved, the failure rate of the blanking chute is reduced, the operation state of the blanking chute is quickly diagnosed, and the damaged chute is quickly replaced are mainly researched and solved, and the failure time for solving the problem of shutdown of the vertical cooling furnace can be greatly reduced as long as the failure shutdown time of the material leakage of the blanking chute is reduced.

The CN 105151630A-a strenghthened type unloading elephant trunk is found in retrieval prior art, only sets up a plurality of parallel strengthening ribs in the inside of pipe wall, can't solve to observe fast and know the unloading elephant trunk operating condition and quick replacement damaged unloading elephant trunk problem. CN 105506222A-a unloading pipe fast discharge apparatus, a water-cooling unloading pipe and its setting method, unloading pipe fast discharge apparatus is by support and extractable device, extension water-cooling unloading pipe life effect, but can't solve the unloading elephant trunk problem of quick understanding unloading elephant trunk operating conditions and quick replacement damage. CN 108787059A-a multistage formula feeding elephant trunk, with the segmentation design of unloading elephant trunk, the feeding elephant trunk adopts the casting structure in the position that easily wears, and the place that does not easily wear adopts the welding structure, only adopts the ordinary steel pipe of casting mechanism replacement, is not suitable here. The CN 203682346U-anti-abrasion blanking chute forms a plurality of receiving hoppers through a material receiving plate which is welded at the bottom and the side wall of the chute, the material receiving plate is easy to be welded at a low price in the sintered ore blanking chute and is used for impact desoldering, and once the material is desoldered, the material is easy to be blocked by a vertical cooling furnace, thereby causing shutdown failure. CN 205607154U-a blanking chute with a plurality of steel plates longitudinally arranged on the inner side wall of the impact section at intervals, the method only can delay the abrasion period and cannot quickly diagnose the running state of the blanking chute and quickly replace the damaged chute. CN 206987387U-a concrete blanking elephant trunk, the nest has ultra high molecular weight polyethylene pipe needle in the outer tube, to the concrete trade, is not suitable for the on-the-spot actual situation that the sinter friction intensity is high. CN 208647807U-an unloading elephant trunk anti-sticking wear proof device: the lower part of the elbow chute is communicated with the buffer chute and is internally provided with the anti-abrasion plate, so that the blanking impact is absorbed at the position and is not matched with a sinter blanking structure. Under the condition of the prior art, the following three outstanding problems cannot be solved: one is as follows: the blanking chute of the vertical cooling furnace is subjected to the continuous blanking friction action of the sinter to cause the chute to wear through and leak materials. The second step is as follows: after the blanking chute is worn, the chute needs to be cooled to normal temperature before being processed in a surfacing pipe repairing mode, a scaffold needs to be built, the time consumption is long, a quick repairing mode is lacked, and the wear cycle of the chute after surfacing operation is still short. And thirdly: the running state of the blanking slide pipe cannot be observed before the blanking slide pipe is worn, advance prevention cannot be achieved, and the running state of the blanking slide pipe and a main line maintenance plan are synchronized in advance. Therefore, a new solution to solve the above technical problems is urgently needed.

SUMMERY OF THE UTILITY MODEL

The utility model discloses just to the problem that exists among the prior art, provide a reduce device of sintering vertical cooling stove unloading elephant trunk trouble, can thoroughly solve above-mentioned three outstanding problems after this technical scheme implements, reach extension unloading elephant trunk wearing and tearing cycle after technical scheme synthesizes and implements, and quick replacement damages the inside lining, the inside wearing and tearing condition of automatic monitoring unloading elephant trunk lower half, is convenient for accomplish the prevention in advance and observes and know the wearing and tearing condition and then know the equipment use situation.

In order to realize the above-mentioned purpose, the technical scheme of the utility model as follows, a reduce device of vertical cold stove unloading elephant trunk trouble of sintering, a serial communication port, the device includes first, the setting of unloading elephant trunk lower half, unloading elephant trunk quick overhaul device and the warning of unloading elephant trunk automatic monitoring on the unloading elephant trunk lower half of unloading elephant trunk.

As the utility model discloses an improve, the unloading elephant trunk lower half is inside to weld into H type structure with the steel sheet, for guaranteeing to weld steel sheet and pipe wall fully combine, H type steel sheet should be difficult for too big, and H type structure steel sheet be semi-annular structure, exceeds interior pipe wall 30 ~ 50mm of unloading elephant trunk lower half, but welds into H type steel sheet and reach the reduction process cycle purpose in the width of interval H type steel sheet between layer. High-wear-resistance high-temperature-resistance organic synthetic materials are uniformly distributed in the H-shaped steel plate and around the H-shaped steel plate, and the organic synthetic materials are connected to the lower half part of the blanking chute through a bolt and nut mechanism.

In the using process, in the process that the sinter falls along the lower half part of the feeding chute, all gaps on the peripheries of the H-shaped steel plate and the organic synthetic material are filled with the small-particle sinter, so that the aim of preventing the sinter from being in direct contact with the feeding chute is fulfilled, and the abrasion period of the lower half part of the feeding chute is delayed at a strong impact position. The high wear-resistant and high temperature-resistant organic synthetic material can be designed to be integrally replaced, and the advantage that the synthetic material 3 is easier to replace after the impact part is worn is achieved.

As the utility model discloses an improve, first extension wear cycle of unloading elephant trunk, high temperature sintering ore does not contact with first half of unloading elephant trunk during normal production, for this reason at first a plurality of parallel striker plates of first internal weld of unloading elephant trunk, and the striker plate is half ring structure, exceeds first interior pipe wall of unloading elephant trunk 30 ~ 50 mm. The striker plate will rub with a small amount of the high-temperature sintering ore that splashes, and the upper half of the blanking chute is prevented from directly rubbing with the small amount of the high-temperature sintering ore that splashes to cause the damage of the upper half of the blanking chute.

As an improvement of the utility model, the quick overhaul device includes access door hole, hollow articulated bolt, cylinder articulated elements and both ends cochlea, wherein sets up the suitable access door hole of a plurality of intervals along the unloading elephant trunk direction, and the access door hole sets up the business turn over operation of being convenient for in first top of unloading elephant trunk.

Among the four sides of the access door hole, the left side is connected with the upper half part of the blanking chute through a hinge structure, and the other three sides are hermetically connected with the upper half part of the blanking chute in a bolt form through six integrated hollow hinge bolts; the cylinder articulated elements are link up at integrative hollow articulated bolt top, and the cylinder articulated elements is settled in both ends cochlea, and both ends cochlea is fixed through welding and first one of unloading elephant trunk, and the supporting nut of integrative hollow articulated bolt front end screw rod, gasket, maintenance door opening installation and open only need become flexible supporting nut can realize fast that the maintenance door opening is opened and close, and integrative hollow articulated bolt is fixed in first one of unloading elephant trunk and avoids the aerial working bolt to drop and lose simultaneously. The handle is arranged on the right side of the access door hole, so that the access door hole is opened by a matched nut of the integral loose hollow hinged bolt for the convenience of maintenance personnel during fault, and the access door hole is drilled into the discharging chute. Because of the highest part of fault rate is wear-resisting organic synthetic material, wear-resisting organic synthetic material passes through bolt-nut mechanism and connects in unloading elephant trunk lower half, therefore the personnel get into the back from the access door hole, and the wear-resisting organic synthetic material of accessible quick replacement reaches quick maintenance unloading elephant trunk lower half, resumes the purpose of normal result of use.

As an improvement of the utility model, unloading elephant trunk automatic monitoring reports to the police and includes temperature sensor and audible-visual annunciator, a plurality of temperature sensor of suitable installation of unloading elephant trunk lower half bottom parallel interval, and audible-visual annunciator is connected to temperature sensor, and audible-visual annunciator is fixed in the temperature sensor periphery or the control room. The automatic monitoring and alarming process of the blanking chute is as follows: during normal production, small-particle sintered ore is fully distributed in all gaps at the periphery of the H-shaped steel plate and the organic synthetic material, and the lower half pipe wall of the blanking chute is not contacted with the high-temperature sintered ore. Once the wear-resistant organic synthetic material or the welded H-shaped steel plate is worn out and even falls off due to the unsoldering, the lower half pipe wall of the blanking chute is directly contacted with the high-temperature sintered ore. At the moment, the temperature detected by the temperature sensor exceeds 100 ℃, a logic judgment program is set, and the audible and visual alarm 13 is triggered to give an audible and visual alarm when the temperature detected by the temperature sensor exceeds 100 ℃. Once the audible and visual alarm 13 sends out audible and visual alarm in daily inspection, the abrasion loss or the welding failure of the wear-resistant organic synthetic material or the welded H-shaped steel plate at the lower half part of the blanking chute can be judged. The effect of automatically monitoring and judging the abrasion condition inside the lower half part of the blanking chute is achieved. The wearing condition of the blanking chute does not appear when the audible and visual alarm gives out audible and visual alarm, the production can be continued in a short period, the production and the mainline maintenance are planned synchronously in advance, the wearing condition of the bottom of the lower half part of the blanking chute can be conveniently prevented and known in advance, and the use condition of the equipment can be further known.

Compared with the prior art, the utility model has the advantages that 1) the technical scheme adopts the lower half part of the blanking chute to weld the steel plate to form an H shape, and highly wear-resistant and high-temperature-resistant organic synthetic materials are uniformly distributed inside and around the H-shaped steel plate, so as to achieve the purpose of prolonging the wear period of the bottom blanking chute, and 2) a plurality of semi-annular parallel baffle plates are welded inside the upper half part of the blanking chute, and are 30-50 mm higher than the inner wall of the upper half part of the blanking chute; the material baffle plate is rubbed with a small amount of splashed high-temperature sintering ore, so that the upper half part of the blanking chute is prevented from being directly rubbed with the small amount of splashed high-temperature sintering ore to cause the damage of the upper half chute of the blanking chute; 3) according to the technical scheme, the plurality of suitable access door holes are arranged at intervals along the direction of the discharging chute, and the matched nuts of the loose integrated hollow hinged bolts open the access door holes to drill into the discharging chute. The aim of quickly overhauling the blanking chute is fulfilled by quickly replacing the wear-resistant organic synthetic material; 4) a plurality of temperature sensors are suitably arranged at the bottom of the lower half part of the blanking chute at parallel intervals, and the temperature sensors are connected with an audible and visual alarm. And a logic judgment program is set, and the sound-light alarm is triggered to give out sound-light alarm when the temperature detected by the sensor exceeds 100 ℃. The wear-resistant organic synthetic material 3 of the lower half part of the blanking chute or the H-shaped steel plate welded by the wear-resistant organic synthetic material can be judged to be worn completely or be detached from welding, production can be continued in a short period, the wear-resistant organic synthetic material and the main line are overhauled and planned synchronously, the situation that the wear of the bottom of the lower half part of the blanking chute is learned in advance is prevented and observed, and the use condition of equipment is further known. By adopting the measures, the following technical problems can be thoroughly solved. One is as follows: the blanking chute of the vertical cooling furnace is subjected to the continuous blanking friction action of the sinter to cause the chute to wear through and leak materials. The second step is as follows: after the blanking chute is worn, the chute needs to be cooled to normal temperature before being processed in a surfacing pipe repairing mode, a scaffold needs to be built, the time consumption is long, a quick repairing mode is lacked, and the wear cycle of the chute after surfacing operation is still short. And thirdly: the running state of the blanking chute cannot be observed before the blanking chute is worn, advance prevention cannot be realized, and the running state is synchronized with a main line maintenance plan in advance. Finally, after the technical scheme is comprehensively implemented, the abrasion period of the blanking chute is prolonged, the lining is quickly replaced, the abrasion condition in the lower half part of the blanking chute is automatically monitored, and the abrasion condition can be conveniently and previously prevented and known, so that the use condition of equipment can be known.

Drawings

FIG. 1 is a schematic diagram of a flow of sintered ore in a vertical sintering furnace process;

FIG. 2 is a schematic view of the lower half part of a blanking chute;

FIG. 3 is a schematic view of the structure of the upper half part of the blanking chute;

FIG. 4 is a schematic view of a rapid maintenance structure of a blanking chute;

FIG. 5 is a schematic view of an integral hollow hinge bolt;

fig. 6 is a schematic diagram of an automatic detection alarm structure of a blanking chute.

The specific implementation mode is as follows:

for the purpose of enhancing the understanding of the present invention, the following detailed description is made with reference to the accompanying drawings.

Example 1: referring to fig. 1-6, the device for reducing the faults of the blanking chute of the sintering vertical cooling furnace comprises a lower half part 1.1 of the blanking chute, an upper half part 1.2 of the blanking chute, a quick overhaul device arranged on the lower half part 1.1 of the blanking chute and an automatic monitoring alarm of the blanking chute, wherein a steel plate is welded into an H-shaped structure 2 inside the lower half part 1.1 of the blanking chute, in order to ensure that the welded steel plate is fully combined with the pipe wall, the H-shaped steel plate 2 is not easy to be overlarge, the steel plate of the H-shaped structure 2 is of a semi-annular structure and is 30-50 mm higher than the pipe wall in the lower half part 1.1 of the blanking chute, and the H-shaped steel plate 2 is welded into a structure, and the purpose of reducing the processing period is achieved by the width of one H-shaped steel plate 2 at intervals between layers of gaps. High-wear-resistance and high-temperature-resistance organic synthetic materials 3 are uniformly distributed in the H-shaped steel plate 2 and around the H-shaped steel plate, and the organic synthetic materials 3 are connected to the lower half part 1.1 of the blanking chute through a bolt-nut mechanism 4. The structure schematic diagram is shown in figure 2, and the lower half part of the blanking chute prolongs the wear cycle. In the using process, in the process that the sinter falls along the lower half part 1.1 of the feeding chute, all gaps on the peripheries of the H-shaped steel plate 2 and the organic synthetic material 3 are filled with the small-particle sinter, so that the aim of preventing the sinter from being in direct contact with the feeding chute 1.1 is fulfilled, and the abrasion period of the lower half part 1.1 of the feeding chute is delayed at a strong impact position. The high wear-resistant and high temperature-resistant organic synthetic material 3 is designed to be capable of being replaced integrally, and the advantage that the synthetic material 3 is easy to replace after the impact part is worn is achieved.

The wear cycle of the upper half part of the blanking chute is prolonged by 1.2, high-temperature sintering ore is not in contact with the upper half part of the blanking chute by 1.2 during normal production, and therefore a plurality of parallel baffle plates 5 are welded inside the upper half part of the blanking chute by 1.2, and the baffle plates 5 are of semi-annular structures and are 30-50 mm higher than the inner pipe wall of the upper half part of the blanking chute by 1.2. The structure schematic diagram is shown in figure 3, and the upper half part of the blanking chute prolongs the abrasion period. Striker plate 5 will rub with the high temperature sintering ore that splashes a small amount, avoid first 1.2 of unloading elephant trunk directly to rub with the high temperature sintering ore that splashes a small amount and cause first 1.2 of unloading elephant trunk to damage, the quick overhaul device includes the access door hole, hollow hinge bolt 8, cylinder articulated elements 10 and both ends cochlea 11, wherein set up the suitable access door hole of a plurality of intervals along the unloading elephant trunk direction, first access door hole 6.1, second access door hole 6.2 sets up in the first 1.2 top business turn over operation of being convenient for of unloading elephant trunk, the quick overhaul of unloading elephant trunk lower half 1.1 sees the quick overhaul of unloading elephant trunk structure sketch map 4 unloading elephant trunk. The fast overhaul method is explained in detail by taking the first overhaul door hole 6.1 as an example. Among four sides of a first access door hole 6.1, the left side is connected with the upper half part 1.2 of the blanking chute through a hinge structure 7, and the other three sides are hermetically connected with the upper half part 1.2 of the blanking chute in a bolt mode through six integrated hollow hinge bolts 8; the integral hollow hinge bolt 8 is in the form of the integral hollow hinge bolt 8 of fig. 5: the cylindrical hinged part 10 is link up at 8 tops of integrative hollow hinged bolt, cylindrical hinged part 10 is settled in both ends cochlea 11, both ends cochlea 11 is fixed through welding and first one 1.2 of unloading elephant trunk, the supporting nut 8.2 of 8 front end screw rods of integrative hollow hinged bolt, gasket 8.1, the installation of first access door hole 6.1 and open only need become flexible supporting nut 8.2 can realize fast that first access door hole 6.1 opens and close, integrative hollow hinged bolt 8 is fixed in first one 1.2 of unloading elephant trunk and avoids the high altitude construction bolt to drop and lose simultaneously. The handle 9 is arranged on the right side of the first access door hole 6.1, so that a maintainer can conveniently loosen the matched nut 8.2 of the integrated hollow hinged bolt 8 to open the first access door hole 6.1 and drill into the blanking chute when in failure. Because the highest part of fault rate is wear-resisting organic synthetic material 3, wear-resisting organic synthetic material 3 passes through bolt-nut mechanism 4 and connects in unloading elephant trunk lower half 1.1, therefore the personnel get into the back from first access door opening 6.1, accessible quick replacement wear-resisting organic synthetic material 3 reaches quick maintenance unloading elephant trunk lower half 1.1, resumes the purpose of normal result of use, unloading elephant trunk automatic monitoring reports to the police and includes temperature sensor and audible-visual alarm, and the parallel interval in unloading elephant trunk lower half 1.1 bottom is suitable for installing a plurality of temperature sensor, first temperature sensor 12.1, second temperature sensor 12.2, third temperature sensor 12.3, fourth temperature sensor 12.4, uses first temperature sensor 12.1 as the working principle of example. The first temperature sensor 12.1 is connected with an audible and visual alarm 13, and the audible and visual alarm 13 is fixed at the periphery of the first temperature sensor 12.1 or in a control room. The automatic monitoring and alarming of the blanking chute are shown in the attached figure 6. During normal production, all gaps on the periphery of the H-shaped steel plate 2 and the organic synthetic material 3 are filled with the small-particle sintered ore, and the pipe wall of the lower half part 1.1 of the blanking chute is not contacted with the high-temperature sintered ore. Once the wear-resistant organic synthetic material 3 or the welded H-shaped steel plate 2 is worn out or even detached from the welding, the pipe wall of the lower half part 1.1 of the blanking chute is directly contacted with the high-temperature sintering ore. At the moment, the temperature detected by the temperature sensor 12.1 exceeds 100 ℃, a logic judgment program is set, and the first temperature sensor 12.1 triggers the audible and visual alarm 13 to give an audible and visual alarm when the detected temperature exceeds 100 ℃. Once the audible and visual alarm 13 sends out audible and visual alarm in daily inspection, the abrasion-resistant organic synthetic material 3 of the lower half part 1.1 of the blanking chute or the welded H-shaped steel plate 2 can be judged to be worn out or welded. The effect of automatically monitoring and judging the internal abrasion condition of the lower half part 1.1 of the blanking chute is achieved. The wearing condition of the blanking chute does not occur when the audible and visual alarm 13 gives an audible and visual alarm, the production can be continued in a short period, the production and the mainline maintenance are planned synchronously in advance, the wearing condition of the bottom of the lower half part 1.1 of the blanking chute can be conveniently prevented and known in advance, and the use condition of the equipment can be further known.

Installation and working process: referring to fig. 1-6, the scheme designs a device for reducing the faults of a blanking chute of a sintering vertical cooling furnace, focuses the downtime of a sintering vertical cooling furnace body and an auxiliary system, and counts the accumulated downtime, wherein the total downtime is 21.5% due to material leakage correction. Therefore, the problems of material leakage of the blanking chute, reduction of the fault rate of the blanking chute, rapid diagnosis of the running state of the blanking chute and rapid replacement of the damaged chute are mainly researched and solved; therefore, a steel plate is welded in the lower half part 1.1 of the blanking chute to form an H-shaped steel plate 2, and high-wear-resistant and high-temperature-resistant organic synthetic materials 3 are uniformly distributed in the H-shaped steel plate 2 and around the upper part and the lower part. A plurality of semi-annular parallel material baffle plates 5 are welded in the upper half part 1.2 of the blanking chute, and are 30-50 mm higher than the inner pipe wall of the upper half part 1.2 of the blanking chute. Through setting up suitable access door 6.1 of a plurality of intervals along the unloading elephant trunk direction, the supporting nut 8.2 of the integrative hollow articulated bolt 8 of not hard up opens access door 6.1 and bores into the unloading elephant trunk. The purpose of quickly overhauling the blanking chute is achieved by quickly replacing the wear-resistant organic synthetic material 3. A plurality of first temperature sensors 12.1 are suitably arranged at the bottom of the lower half part 1.1 of the blanking chute in parallel at intervals, and the first temperature sensors 12.1 are connected with an audible and visual alarm 13. A logic judgment program is set, and the first temperature sensor 12.1 triggers the audible and visual alarm 13 to give an audible and visual alarm when the detected temperature exceeds 100 ℃. The wear-resistant organic synthetic material 3 or the welded H-shaped steel plate 2 of the lower half 1.1 of the blanking chute can be judged to be worn out or be unwelded. By adopting the measures, the problems in the prior art can be thoroughly solved. Reach extension unloading elephant trunk wearing and tearing cycle after technical scheme synthesizes implementation, the inside lining is damaged to quick replacement, the inside wearing and tearing condition of automatic monitoring unloading elephant trunk lower half 1.1, it is above-mentioned embodiment to be convenient for accomplish that the precaution is in advance to know the wearing and tearing condition and then know that equipment behaviour in service needs explain, and not be used for injecing the utility model discloses a protection scope, the equal transform or the substitution of making on above-mentioned technical scheme's basis all fall into the scope that the utility model discloses the claim protected.

Claims (4)

1. A device for reducing the fault of a blanking chute of a sintering vertical cooling furnace is characterized by comprising a lower half part (1.1) of the blanking chute, an upper half part (1.2) of the blanking chute, a quick maintenance device arranged on the lower half part (1.1) of the blanking chute and an automatic monitoring alarm of the blanking chute, wherein a steel plate is welded into an H-shaped structure (2) in the lower half part (1.1) of the blanking chute, and H type structure (2) steel sheet is the semi-ring structure, exceed interior pipe wall 30 ~ 50mm of unloading elephant trunk lower half (1.1), inside and the equipartition high wear-resisting high temperature resistant organic synthetic material (3) all around of H type structure steel sheet, organic synthetic material (3) are connected in unloading elephant trunk lower half (1.1) through bolt nut mechanism (4), a plurality of parallel striker plates of first (1.2) inside weld of unloading elephant trunk (5), striker plate (5) are the semi-ring structure, exceed interior pipe wall 30 ~ 50mm of first (1.2) of unloading elephant trunk.

2. The device for reducing the fault of the blanking chute of the sintering vertical cooling furnace according to the claim 1, characterized in that the quick maintenance device comprises maintenance door holes, hollow hinged bolts (8), cylindrical hinged pieces (10) and two-end cochlea (11), wherein a plurality of intervals of maintenance door holes are arranged along the direction of the blanking chute, the maintenance door holes are arranged at the top of the upper half part (1.2) of the blanking chute to facilitate the in-and-out operation, among the four sides of the maintenance door holes, the left side is connected with the upper half part (1.2) of the blanking chute through a hinged structure (7), and the rest three sides are hermetically connected with the upper half part (1.2) of the blanking chute through six integrated hollow hinged bolts (8) in a bolt form; cylindrical hinged member (10) link up at integrative hollow hinged bolt (8) top, cylindrical hinged member (10) are settled in both ends cochlea (11), both ends cochlea (11) are fixed through welding and first one (1.2) of unloading elephant trunk, the supporting nut of integrative hollow hinged bolt (8) front end screw rod (8.2), gasket (8.1), only need become flexible supporting nut (8.2) to realize fast that access door hole (6.1) is opened and close in access door hole (6.1) installation and opening, integrative hollow hinged bolt (8) are fixed in first one (1.2) of unloading elephant trunk and are avoided the high altitude construction bolt to drop and lose simultaneously.

3. The device for reducing the fault of the blanking chute of the sintering vertical cooling furnace according to the claim 2, characterized in that the automatic monitoring alarm of the blanking chute comprises a temperature sensor and an audible and visual alarm, a plurality of temperature sensors are arranged at the bottom of the lower half part (1.1) of the blanking chute at parallel intervals, wherein the temperature sensors are connected with the audible and visual alarm (13), and the audible and visual alarm (13) is fixed at the periphery of the temperature sensors or in a control room.

4. Device for reducing the charging chute faults of a sintering shaft cooler according to claim 3, characterised in that the organic synthetic material (3) is designed in the form of a one-piece replacement.

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