CN108692576B

CN108692576B - Gate plate unloading type vertical cooler with material level adjusting device and sinter cooling method

Info

Publication number: CN108692576B
Application number: CN201710230527.7A
Authority: CN
Inventors: 贺新华; 戴波; 张震; 刘克俭
Original assignee: Zhongye Changtian International Engineering Co Ltd
Current assignee: Zhongye Changtian International Engineering Co Ltd
Priority date: 2017-04-11
Filing date: 2017-04-11
Publication date: 2024-04-05
Anticipated expiration: 2037-04-11
Also published as: CN108692576A

Abstract

A ram-unloading vertical cooler comprising: the device comprises a storage bin (1), a material height adjusting device (2), a tower body consisting of a tower body top cover (3), a tower wall (4), a tower body cone (5) below a position Yu Dabi (4) and a tower bottom (D), a wind ring (H), a wind cap (M), a plurality of discharge outlets (5 a) arranged at the lower part of a discharge cone hopper (5) and a hot air outlet (8) arranged at the upper part of the tower wall (4) or on the tower body top cover (3); a fixed gap of a circle is formed between the lower part of the tower wall (4) and the top of the discharge cone hopper (5) to serve as an air ring (H), an air cap (M) extending upwards into the inner space of the tower body is arranged at the central position of the tower bottom, a discharge gate or a discharge gate plate (12) is correspondingly arranged at each discharge outlet (5 a), and a discharge channel (10) is arranged below the discharge gate (12).

Description

Gate plate unloading type vertical cooler with material level adjusting device and sinter cooling method

Technical Field

The invention relates to a flashboard unloading type vertical cooler with a material level adjusting device and a sinter cooling method, belonging to the field of iron making and the field of environmental protection.

Background

In modern sintering processes, "cooling" is one of the more critical processes. After the sintering of the sintering machine, high Wen Chengpin ore is formed, and the problem of how to perform protective cooling on the high Wen Chengpin ore on the premise of not affecting the quality and the yield of the high Wen Chengpin ore is solved, so that the high Wen Chengpin ore can be conveyed into a finished ore bin through a belt conveyor, and meanwhile, the heat-generating energy carried by the high Wen Chengpin ore is perfectly recycled, so that the high Wen Chengpin ore is a constant research problem for the technical personnel in the industry. Since the 60 s of the 20 th century, the cooling process of sintered ores has been rapidly developed, and is mainly divided into three categories, namely belt cooling, ring cooling and disc cooling. In the later market competition, the belt cooling technology is eliminated, and the rest ring cooling technology and the disc cooling technology have advantages and disadvantages. But comprehensively comparing, the disc cooler has better utilization rate of the waste heat than the ring cooler (all sensible heat of the sinter is recycled), so the disc cooler is widely applied to foreign markets, and the patent also describes the technology of the disc cooler.

The technology of the disk cooler starts to develop from the 70 s, and the disk cooler is started to transversely cool the disk, namely, cooling air flows from the inner ring to the outer ring of the disk cooler, transversely passes through a material layer to be cooled to exchange heat with the material layer, and the cooling air after heat exchange is directly discharged to the atmosphere. The technology of the dish cooler is an exhaust type longitudinal dish cooling technology proposed by Hitachi, japan and well-contained steel. The technology adopts air draft, cooling air is pumped into the bottom of the material to be cooled from the atmosphere, then longitudinally passes through the material layer upwards, and finally is blown out from the upper part of the material layer to enter the subsequent working procedures. This solution has been greatly optimized and advanced compared to the very beginning one, which is described in detail below.

JP2008232519a (mitsubishi hitachi and well-held steel, hereinafter D1) discloses an induced draft type longitudinal disc cooling technique, see fig. 1 therein: the hot sinter falls into the feeding chute from the tail part of the sintering machine, and is piled up into a material column with a certain height in the chute, so that the effect of uniform blanking is achieved on one hand, and the effect of preventing the air from flowing through the feeding port is achieved on the other hand. Mineral aggregate continuously passes through the hood downwards and then enters the box body of the tray cooler to be pushed into a material column with a certain height. Meanwhile, the air near the disc cooler is sucked into the material column through the louver air inlet device under the influence of the negative pressure of the exhaust fan, and passes through the material column from bottom to top to exchange heat with the material column, and the air after heat exchange passes out of the top surface of the material column and enters the air outlet to be sent to the gravity dust remover and the waste heat boiler, and finally passes through the exhaust fan and is discharged. The sintered material cooled by air forms an annular stacking area with a cross section of a triangle with a stacking angle of 37 degrees at a tray at the lower part of the tray cooler, and when the sintered material is rotated to a discharging area, the sintered material is scraped by a scraping plate device, and the cooling process is completed to enter the next process link.

Although the 'induced draft type longitudinal disc cooling technology' of Mitsubishi Hitachi and Zhongsheng steel has obvious progress compared with the conventional technology, the following five defects still exist:

1) The overall height requirement of the device is too high: because the 'induced draft type longitudinal disc cooling technology' adopts an induced draft mode, a material seal, namely a material column piled in a feeding chute in the figure 1 of D1, is necessarily arranged at the position of a feeding inlet, and the height of the material seal is 1.2-1.5 times of the height of the material column in the box body of the disc cooler. Therefore, the height of the whole disc cooling device is increased intangibly, and the elevation of the whole sintering machine is required to be increased or the civil engineering plane of the disc cooling machine is required to be dug downwards during construction and installation. Whichever way is selected, the method can cause high primary investment cost, and is not cost-effective in economic index;

2) The open circulation of the wind flow leads to low waste heat utilization rate and environmental pollution: because the wind flow of the 'induced draft type longitudinal disc cooling technology' is in open circuit circulation, the air discharged from the waste heat boiler is directly discharged outwards and is not recycled, so that more than 100 degrees of sensible heat of the air is wasted, and the discharged air contains a large amount of small particle dust, so that the air is polluted by particles to a certain extent;

3) The material at the feed inlet is seriously worn: because the material seal is arranged at the feeding chute by the 'induced draft type longitudinal disc cooling technology', a friction distance exists between the lower part of the material seal and the upper layer of the material surface in the disc cooler box body. At the moment, the sintering material is easy to pulverize and crush when rubbed under the double-layer severe working condition of high temperature and upper material column extrusion, thereby reducing the yield of the sintering machine;

4) The environmental pollution is serious: because of the negative pressure air draft technology adopted by the air draft type longitudinal disc cooling technology, a sealing cover device is not arranged at the tray at the lower part of the box body. Thus, when the sinter is scraped by the scraper device, a large amount of fine particles and dust are easy to splash. And in case the exhaust fan is in fault maintenance, all the material dust pushed around the disc cooler can enter the atmosphere, and the operation environment beside the disc cooler is affected adversely.

5) The heat efficiency of the waste heat boiler is not the highest: because the air passing through the material layer is not accurately classified according to the air temperature by the 'induced draft type longitudinal disc cooling technology', and is fully mixed into the waste heat boiler, when the air temperature at the outlet of the low-temperature section is too low, the temperature of the air entering the waste heat boiler is inevitably lowered, and therefore the heat efficiency value of the waste heat boiler is reduced.

At present, the sintering ore cooling mainly adopts a traditional belt type cooler or a ring type cooler based on the principle of rapid cooling by strong air and one-time loading and unloading cooling. The cooler has the problems of high air leakage rate, high power consumption of a fan, low sensible heat recovery rate, low thermal efficiency of a boiler and the like no matter which cooling mode is adopted. In other words, in the current large environment with more and more strict requirements on energy conservation, consumption reduction and green manufacturing in the market, the original equipment structure has hardly realized efficient recovery and utilization of the sensible heat of the sinter.

Therefore, the limitation of traditional ring cooling or belt cooling is broken through, and the development of a process and technical equipment for efficiently recovering the sensible heat of the sinter is a necessary path for energy conservation and environmental protection in the sintering industry.

Disclosure of Invention

Therefore, a large amount of research work on the sensible heat recovery of the sintering ores at home and abroad is performed, and a technology for cooling the countercurrent thick material layer of the sintering ores based on low air cooling is provided. The process has the characteristics of low cooling speed of the sinter, small ton consumption cooling air quantity, relatively small waste gas quantity, high waste gas temperature, high thermal efficiency of the boiler, capability of completely utilizing the cooling waste gas by the boiler, and general sensible heat recovery rate of the sinter reaching about 70 percent. According to the cooling process of the sintering ore countercurrent thick material layer, the invention provides a vertical cooler which has the characteristics of uniform material distribution, uniform material discharge and uniform air distribution, and can perform regional material discharge regulation function according to the cooling effect, so that the cooler has good cooling effect and high hot air temperature, and meets the requirements of the sintering ore countercurrent thick material layer cooling process.

Compared with the original annular cooler, the vertical cooler has the advantages of simple structure, reliable sealing, no air leakage, small equipment maintenance amount and high waste heat recovery efficiency.

It is an object according to the invention to provide a vertical cooler for cooling sinter which is of tower construction and which can therefore also be referred to as tower cooler.

According to the present invention, there is provided a sluice-discharge type vertical cooler having a level adjustment device, the vertical cooler comprising: the device comprises a bin, a material height adjusting device, a tower body, an air ring, an air cap and a hot air outlet, wherein the tower body consists of a tower body top cover, a tower wall, a tower body cone barrel positioned below the tower wall and a tower bottom;

wherein the top cover is fixedly connected with the upper end of the tower wall, the bin is arranged above the top cover, the upper end of the material height adjusting device is connected with the bottom of the bin, the lower end of the material height adjusting device extends into the lower part of the top cover,

the plurality of discharging outlets are annularly distributed around the lower part of the tower body cone or uniformly distributed along the circumferential direction of the lower part of the tower body cone,

a fixed gap is formed between the lower part of the tower wall and the top of the tower cone as a wind ring,

A hood extending upwards into the inner space of the tower body is arranged at the central position of the tower bottom, and

a discharge gate or a discharge flashboard is correspondingly arranged at each discharge outlet, and a discharge channel is arranged below the discharge gate; preferably, the discharge channel is a discharge chute corresponding to each discharge outlet or the discharge channel is a discharge hopper of unitary design.

In the invention, the tail end of the storage bin is provided with a straight pipe, and the material height adjusting device is sleeved on the straight pipe.

Preferably, the length of the straight tube is 600 to 2000mm, preferably 800 to 1800mm, more preferably 1000 to 1600mm.

In the present invention, the vertical cooler further comprises: support, gear support, follow driving wheel, chain. Wherein: the outer side of the material height adjusting device is provided with a support; the top cover is provided with a gear support, the gear support is provided with a driven wheel, one end of the chain is connected with the support, and the other end of the chain penetrates through the top cover to be connected with the driven wheel.

Preferably, the gear bracket is also provided with a transmission gear, and the transmission gear is connected with the driven wheel in a matching way.

In the invention, the transmission gear is a transmission gear reducer.

Preferably, the transmission gear is connected with a manual rocker or a motor, and the manual rocker or the motor drives the transmission gear; more preferably, the transmission gear is provided with a backstop.

In the present invention, the vertical cooler further comprises: the steel pipe, the support is connected to the one end of steel pipe, and the other end of steel pipe passes the top cap and connects the chain, and the other end and the follow driving wheel of chain are connected.

Preferably, the steel tube extends out of the top cover, and the length of the steel tube extending out of the top cover is 0-1000 mm, preferably 5-1000 mm, preferably 10-1000 mm, preferably 100-800mm, more preferably 200-600mm.

In the present invention, the number of the holders is 2 to 10, preferably 3 to 8, more preferably 4 to 6. A gear bracket is arranged right above each support. Each gear bracket is provided with a driven wheel. One end of each chain is connected with the support, and the other end of the chain is connected with the driven wheel.

In the invention, one end of each steel pipe is connected with a support. The other end of the steel pipe is connected with a chain, and the other end of the chain is connected with a driven wheel.

Preferably, the plurality of holders are symmetrically arranged on the outer side of the material height adjusting device.

In the present invention, the vertical cooler further comprises: support, chain, calabash support, calabash. Wherein: and a support is arranged on the outer side of the material height adjusting device. The top cover is provided with a calabash bracket. The calabash is arranged on the calabash bracket. One end of the chain is connected with the support, and the other end of the chain penetrates through the top cover to be connected with the lifting hook of the hoist.

Preferably, the vertical cooler further comprises: and (3) a steel pipe. The chain is replaced by a steel pipe. One end of the steel pipe is connected with the support, and the other end of the steel pipe penetrates through the top cover to be connected with the lifting hook of the hoist.

Preferably, the hoist is a manual hoist or an electric hoist.

In the present invention, the number of the holders is 2 to 10, preferably 3 to 8, more preferably 4 to 6. A calabash bracket is arranged right above each support. Each calabash bracket is provided with a calabash. One end of each chain is connected with the support. The other end of the chain is connected with a hoist.

In the invention, one end of each steel pipe is connected with a support, and the other end of the steel pipe is connected with a hoist.

In the present invention, the vertical cooler further comprises: support, steel pipe, elevating gear. Wherein: and a support is arranged on the outer side of the material height adjusting device. The top cover is provided with a lifting device, one end of the steel pipe is connected with the support, and the other end of the steel pipe penetrates through the top cover to be connected with the lifting device.

In the invention, the number of the supports is 2-10, preferably 3-8, more preferably 4-6, and a lifting device is arranged right above each support. One end of each steel pipe is connected with the support, and the other end of the steel pipe is connected with the lifting device.

In the invention, a plurality of lifting devices are connected with a lifting motor through a connecting rod and a transmission case.

Preferably, a counter is also included. The counter is connected with the lifting motor. More preferably, the lifting device is a screw lifter.

Typically, the hood extends into the interior space of the tower such that the height of the hood air duct (i.e., the stem of the hood) is sufficient to reach the height of the wind ring.

Preferably, a cold sinter conveyor is provided at or below the end of the discharge channel, e.g. at the end of the discharge chute or below the discharge hopper.

Preferably, a tower wall transition section is further provided at the lower or lower part of the tower wall and above the tower cone. Thus, the tower cone can be more conveniently installed at the lower part of the tower wall. In this case, the tower is formed by a tower top cover, a tower wall and a lower (inverted conical or inverted conical) tower wall transition. The tower wall transition section assumes an inverted conical or inverted conical cylindrical shape, i.e., its lower portion has an inner diameter smaller than its upper portion. May also be referred to as a transition bucket or as an upper cone bucket. The cone angle of the inverted or inverted cone-shaped tower wall transition is typically 60-75 degrees, preferably >63.5 degrees.

The outer diameter of the lower end of the tower body cone is smaller than that of the upper end. Thus, the tower cone takes on the shape of an inverted cone.

Generally, the vertical cooler further comprises an air ring air supply device, wherein the air ring air supply device comprises an air ring air channel and an air ring air pipe connected to the air ring air channel, and the air ring air channel surrounds the air ring and is communicated with the air ring.

Generally, the vertical cooler further comprises a hood air supply device, wherein the hood air supply device comprises a plurality of hood branch pipes, an annular or C-shaped hood air duct and a hood air duct connected with the hood air duct, one end of each hood branch pipe is communicated with the hood air duct, and the other end of each hood branch pipe is communicated with the bottom or the stem of the hood. The stem is a hood air duct.

Preferably, a temperature measuring probe is arranged at the lower part of the tower wall. More preferably, the temperature measuring probe is a thermocouple temperature sensor.

With the wind ring as a division point, the height (or called lower material layer height) h1 of the tower cone is larger than the stacking height (or called upper material layer height) h2 of the tower wall.

Generally, the number of the discharge outlets at the lower part of the cone of the tower body is 4-12, preferably 6-10 and 6-8.

Generally, the number of the hood branches is 1 to 12, preferably 2 to 10, more preferably 4 to 8, and still more preferably 6 to 8. Preferably, the hood branch pipe is connected to the bottom of the hood in a downward bending manner, or the hood branch pipe is connected to the stem of the hood, namely the hood air pipe, through the wall of the tower cone.

Preferably, the hood comprises a support frame, a hood top cover, a plurality of conical cover plates and a hood air pipe, wherein the conical cover plates are sequentially arranged on the support frame, and the diameters of the bottoms of the conical cover plates are sequentially increased from top to bottom; the hood top cap sets up in the top of the toper apron of top, and the tuber pipe sets up in the below of support frame and is connected with the support frame. Preferably, the hood top cover is of a conical structure.

Preferably, the vertical cooler further comprises a control system, wherein the control system is connected with the height adjusting device, the motor, the hoist, the lifting device, the wind ring wind supply device, the wind cap wind supply device, the temperature measuring probe, the discharging gate and the cold sinter transportation device, and controls the operation of the height adjusting device, the motor, the hoist, the lifting device, the wind ring wind supply device, the wind cap wind supply device, the temperature measuring probe, the discharging gate and the cold sinter transportation device.

According to the present invention, there is also provided a method of cooling sinter or a method of cooling sinter using the above-described shutter discharge type vertical cooler, the method comprising the steps of:

(1) Sinter enters a feed bin of the vertical cooler, continuously flows from top to bottom under the action of gravity, and is filled around a lower port of a material height adjusting device under the condition of free accumulation, and the material height adjusting device moves up and down to realize material height change;

(2) The air ring air supply device and the air cap air supply device of the vertical cooler respectively convey cooling gas (namely cold air or air) into the tower body through the air ring and the air cap, the cooling gas passes through a sinter material layer piled in the tower body from bottom to top, and performs countercurrent heat exchange with the sinter, the temperature of the cooling gas is gradually increased after the heat exchange, the cooling gas is discharged through the sinter material surface in the tower of the vertical cooler to form high-temperature hot air, and the high-temperature hot air is discharged through a hot air outlet; preferably, the high temperature hot wind is delivered to a waste heat utilization system (e.g., a waste heat power generation system);

(3) Sinter deposited in the tower of the cooler is cooled by countercurrent heat exchange with a bottom-up cooling gas, enters the tower cone at the lower part of the vertical cooler, is discharged from a plurality of discharge outlets at the bottom of the tower cone, and is discharged (for example, discharged onto a cold sinter conveyor) through a discharge channel.

Preferably, the control system controls the operations of the height adjusting device, the motor, the hoist, the lifting device, the wind ring wind supply device, the hood wind supply device, the discharge gate or the discharge flashboard and the cold sinter conveyor according to the temperature detected by the temperature measuring probe.

Preferably, a temperature measuring probe is provided corresponding to each discharge outlet, and the control system controls the operation of the corresponding discharge gate or discharge shutter (i.e., controls the operation of the corresponding discharge outlet), such as up and down movement, according to the temperature detected by each temperature measuring probe. The temperature of the material above the discharge gate or the discharge flashboard (at the discharge outlet) is regulated by lifting or opening and closing the discharge gate or the discharge flashboard.

Preferably, in the vertical cooler, the height h1 of the tower cone is greater than the stacking height h2 of the tower wall.

In the invention, the materials are discharged from the lower part of the cone of the tower body through the discharge gate from inside to outside, so that the downward discharge speed difference of the materials at the center and the edge in the vertical cooler tower can be reduced as much as possible. The cooled sinter discharged from the discharge gate flows into a lower discharge channel (for example, a lower chute), flows out from a lower outlet of the discharge channel (for example, a lower chute), flows into a conveyor at the lower part of the discharge channel, and is conveyed to the next process by the conveyor. After heat exchange with the hot sinter, the cooling air entering the tower cools the hot sinter to below 150 ℃, and the hot sinter is heated to a higher temperature to become hot air, the hot air passes through the material surface at the top end of the material layer after passing through the material layer, enters a material-free area at the upper end of the tower formed by the top cover and the tower wall, and then is discharged through a hot air outlet to enter a subsequent waste heat power generation system.

The storage bin is of a cylindrical or square barrel-shaped structure and is used for buffering and containing hot sinter conveyed by the conveyor, and the bottom of the storage bin is fixedly connected to the top cover. The material height adjusting device is of a cylindrical or square barrel-shaped structure and is positioned at the bottom of the storage bin, the upper end of the material height adjusting device is fixedly connected with the bottom of the storage bin, the lower end of the material height adjusting device stretches into the lower part of the top cover and is positioned in the tower body formed by the top cover and the tower wall, wherein sintered ore can enter the material height adjusting device from the bottom of the storage bin under the action of gravity and can freely flow out from an opening at the lower part of the material height adjusting device under the action of gravity; under the condition of free accumulation of materials, the lower port of the material height adjusting device is filled all around, and the material height adjusting device moves up and down to realize the change of the material height. The tower wall is a cylindrical or square barrel-shaped structure, the upper end of the tower wall is fixedly connected with the top cover, a fixed gap is formed between the lower end of the tower wall and the cone of the tower body, namely, a wind ring is fixed on the foundation at a certain position in the middle of the fixed gap, and the weight of the top cover is supported on the periphery of the tower wall. The wind ring is a peripheral cavity formed between the tower wall and the tower cone, and cooling wind can uniformly blow the sinter in the tower through a circle of wind ring to cool the sinter. The wind ring wind supply device can supply wind to the wind ring for a circle. The hood is located in the lower part of the tower wall and located on the tower cone, and cooling air can be blown into the sintered ore in the tower uniformly through the hood in a circle to cool the sintered ore. The tower body cone is positioned at the lower end of the tower wall and is fixed with the foundation, meanwhile, a wind ring is formed between the tower body cone and the tower wall, and the wind cap is fixed at the upper end of the wind ring. Preferably, the shape of the cone of the tower body is a conical structure with a large upper part and a small lower part. The cooled sinter flows into the tower cone under the action of gravity. The material in the tower body cone can control the discharging speed of the corresponding material outlet of the tower body cone through the up-and-down movement of each discharging gate. Generally, the hot air outlet is positioned at the upper part of the tower wall, fixedly connected with the tower wall and communicated with the inner part of the tower body, and hot air passes through the material surface at the top end of the material layer after passing through the material layer, enters a material-free area at the upper end of the tower body formed by the top cover and the tower wall, is discharged through the hot air outlet and enters a subsequent waste heat power generation system.

Preferably, a plurality of temperature measuring probes are uniformly arranged at the lower part of the tower wall along the circumferential direction, the temperature measuring probes are positioned at the upper part of the wind ring and fixed on the tower wall, one end of each temperature measuring probe extends into a small section in the tower body and is used for detecting the temperature of the sinter at the position, and preferably, the temperature measuring probes can be thermocouple temperature sensors. When the detected sinter temperature at a certain position in the circumferential direction reaches the cooling effect, a discharging gate which corresponds to the area and is positioned below the cone of the tower body is normally opened to perform normal discharging, otherwise, the opening height of the discharging gate is correspondingly reduced or the discharging gate is closed, the sinter in the area is cooled for a period of time, and when the sinter temperature reaches the cooling effect, normal discharging is performed.

Preferably, the air ring air supply device consists of an air ring air duct and an air ring air duct, the air ring air duct is arranged on the outer side of the air ring and surrounds the air ring, and cooling air can uniformly supply air to the air ring through the air ring air duct, and the air ring air duct is communicated with the air ring air duct and supplies air to the air ring air duct.

Preferably, the hood air supply device consists of a hood branch pipe, a hood air duct and a hood air duct. The hood branch pipes are uniformly distributed in a plurality along the circumferential direction. Preferably, each hood branch pipe is connected with the stem of the hood through the wall of the tower cone, or is bent downwards to be connected with the bottom of the hood. The hood air duct is responsible for evenly supplying air to each hood branch pipe. The hood air pipe is responsible for supplying air to the hood air channel.

The hot sinter crushed by the single-roller crusher is transported to the top of the vertical cooler by the hot sinter conveying device, enters the vertical cooler bin, continuously flows from top to bottom under the action of gravity, is filled around the lower port of the material height adjusting device under the free accumulation condition, and moves up and down to realize countercurrent heat exchange between the material height change and cooling air in the vertical cooler from bottom to top, the temperature of the sinter is cooled to below 150 ℃, then passes through the tower cone at the lower part of the vertical cooler, is discharged into a discharge channel (such as a lower chute) by a discharge gate, is discharged onto a cold sinter conveyor from the tail end or the lower part of the discharge channel, and is transported to the next procedure by the cold sinter conveyor.

Under the action of a circulating fan, cooling gas is supplied into the machine body from the vertical cooler air ring air supply device and the air cap air supply device through the air ring and the air cap at a certain pressure, passes through the sinter material layer from bottom to top, and performs countercurrent heat exchange with the sinter. The temperature of the cooling gas is gradually increased after heat exchange, and the cooling gas is discharged from the sinter level in the vertical cooler tower to form high-temperature hot air. The high-temperature hot air is discharged through a hot air outlet at the upper part of the vertical cooler. The discharged high-temperature hot air enters a subsequent waste heat power generation system.

Preferably, the apparatus also has a self-feedback discharge adjustment function. And detecting the temperature of the sintering ore in the corresponding area through the temperature measuring probe, when the detected temperature of the sintering ore in a certain circumferential position reaches the cooling effect, normally opening a discharging gate below the cone of the tower body corresponding to the area to perform normal discharging, otherwise, correspondingly reducing the height of an opening of the discharging gate or closing the discharging gate to cool the sintering ore in the area for a period of time, and after the temperature of the sintering ore reaches the cooling effect, performing normal discharging.

The high temperature pellet shaped agglomerate has sticky surfaces which, once cooled, adhere to each other and the prior art devices often cause difficult discharge, however, the device of the present invention solves this problem well.

In general, the height of the column, which is composed of the column head, column wall, column cone below the column wall and column bottom, is generally from 6 to 30 meters, preferably from 6.5 to 28 meters, preferably from 7 to 25 meters, more preferably from 8 to 20 meters. The outer diameter of the column is generally 7 to 32 meters, preferably 8 to 30 meters, preferably 9 to 27 meters, preferably 10 to 25 meters, preferably 11 to 22 meters, more preferably 12 to 20 meters.

In this application, the diameter of the hood is generally 1.5-4 meters, preferably 1.8-3.5 meters, more preferably 2-3 meters, more preferably 2.2-2.8 meters, for example 2.5 meters.

In this application, the diameter or inner diameter of the wind ring is generally 7-26 meters, preferably 8-24 meters, preferably 9-22 meters, preferably 10-20 meters, more preferably 12-15 meters.

The diameter or inner diameter of the wind ring is generally 0.65 to 0.96 times, preferably 0.68 to 0.94 times, preferably 0.70 to 0.92 times, more preferably 0.73 to 0.9 times, more preferably 0.78 to 0.88 times, more preferably 0.8 to 0.86 times the outer diameter of the tower body.

The chute as a discharge channel has a width of, for example, 1 meter and a height of 9 meters.

Compared with the prior art, the invention has the following beneficial technical effects:

the equipment is provided with the material height adjusting device, the material is filled around the lower port of the material height adjusting device under the free stacking condition, and the material height adjusting device moves up and down to realize the change of the material height; the operability is strong.

The process has the characteristics of low cooling speed of the sinter, small ton consumption cooling air quantity, relatively small waste gas quantity, high waste gas temperature, high thermal efficiency of the boiler, capability of completely utilizing the cooling waste gas by the boiler and general sensible heat recovery rate of the sinter up to about 70 percent. In addition, the process can also overcome the problem of secondary sintering of the sinter in the vertical cooling device and prevent the blockage phenomenon of the vertical cooling device.

The device has the advantages of uniform material distribution, uniform material discharge and uniform air distribution. The regional discharging adjusting function can be performed according to the cooling effect, so that the cooling machine has good cooling effect and high hot air temperature, and meets the requirements of the sintering ore countercurrent thick material layer cooling process.

Compared with the annular cooler in the prior art, the vertical cooler has the advantages of simple structure, reliable sealing, no air leakage, small equipment maintenance amount and high waste heat recovery efficiency. The sensible heat recovery rate of the sinter can reach about 73 percent.

1. The structure is simple, the equipment investment is reduced, and the operation cost of the equipment is reduced;

2. the device has good tightness, the heat recovery efficiency of the sinter is high, high-temperature waste gas (hot air) is obtained for generating steam, the high-temperature steam is used for generating electricity, and the electricity generation efficiency is higher;

3. the discharging is free from blocking, and the frequency of shutdown and maintenance is obviously reduced;

4. according to the detected temperature of the materials above the cone of each tower body, the discharging speed of the discharging outlet can be adjusted by independently controlling the lifting of each discharging gate, and the temperature is further adjusted.

Drawings

FIG. 1 is a schematic view of a vertical cooler according to the present invention;

FIG. 2 is an enlarged view of a portion of the vertical cooler provided with a material height adjustment device according to the present invention;

FIG. 3 is a schematic view of a material height adjusting device according to a first embodiment of the present invention;

FIG. 4 is a schematic view of a material height adjusting device according to a second embodiment of the present invention;

FIG. 5 is a bottom view of the material height adjustment device of the first design of the present invention;

FIG. 6 is a schematic view of a third embodiment of a material height adjusting device according to the present invention;

FIG. 7 is a schematic view of a fourth embodiment of a material height adjusting device according to the present invention;

FIG. 8 is a schematic view of a fifth embodiment of a material height adjusting apparatus according to the present invention;

FIG. 9 is a bottom view of a fifth material height adjustment device according to the present invention;

FIG. 10 is a schematic view of a wind ring and wind ring wind supply apparatus according to the present invention;

FIG. 11 is a schematic view of a hood and hood air supply device according to the present invention;

FIG. 12 is a tower cone layout of the present invention;

FIG. 13 is a diagram of a temperature probe arrangement of the present invention;

FIG. 14 is a view of a discharge gate arrangement of the present invention;

fig. 15 is a schematic structural view of the hood according to the present invention.

Fig. 16 is a schematic diagram of a control system of the vertical cooler of the present invention.

Reference numerals: a1: gate plate type vertical cooler; 1: a storage bin; 101: a straight pipe; 2: a material height adjusting device; 201: a support; 3: a top cover; 301: a gear bracket; 302: driven wheel; 303: a chain; 304: a transmission gear; 305: a manual rocker; 306: a motor; 307: a steel pipe; 308: a calabash bracket; 309: calabash; 310: a lifting device; 311: a connecting rod; 312: a transmission case: 313: a lifting motor; 314: a counter; 315: a backstop; 4: a tower wall; 4a: a tower wall transition section; 5: a tower cone; 5a: a discharge outlet; 5b: an optional (i.e., optional) discharge outlet seal cap; 6: a wind ring wind supply device; 601: an air ring air duct; 602: an air ring air pipe; 7: a hood air supply device; 701: a hood branch; 702: a hood air duct; 703: a hood air pipe; 8: a hot air outlet; 9: a temperature measurement probe; 10: a discharge channel (e.g., a discharge chute or hopper); 11: a cold sinter conveying device; 12: a discharge gate; h: a wind ring; m: a hood; m01: a support frame; m02: a top cover; m03: a conical cover plate; m04: a hood air pipe; d: and (3) the bottom of the tower. K: and a control system.

h1: the height of the tower body cone; h2: tower wall stacking height of the tower body.

Detailed Description

As shown in fig. 1 to 7, according to the present invention, there is provided a shutter discharge type vertical cooler having a level adjustment device, the vertical cooler A1 including: the material height adjusting device 2 comprises a material bin 1, a tower body consisting of a tower body top cover 3, a tower wall 4, a tower body cone 5 positioned below the tower wall 4 and a tower bottom D, a wind ring H, a wind cap M, a plurality of discharge outlets 5a arranged at the lower part of the tower body cone 5 and a hot air outlet 8 arranged at the upper part of the tower wall 4 or on the tower body top cover 3;

wherein the top cover 3 is fixedly connected with the upper end of the tower wall 4, the material bin 1 is arranged above the top cover 3, the upper end of the material height adjusting device 2 is connected with the bottom of the material bin 1, the lower end of the material height adjusting device 2 stretches into the lower part of the top cover,

the plurality of discharge outlets 5a are annularly distributed around the lower part of the tower body cone 5 or the plurality of discharge outlets 5a are uniformly distributed along the circumferential direction of the lower part of the tower body cone 5,

a fixed gap of a circle is formed between the lower part of the tower wall 4 and the top of the tower cone 5 as a wind ring H,

a hood M extending upwards into the inner space of the tower body is arranged at the central position of the tower bottom D, and

A discharge gate or shutter 12 is provided at each discharge outlet 5a, respectively, and a discharge passage 10 is provided below the discharge gate 12; preferably, the discharge channel 10 is a discharge chute corresponding to each discharge outlet 5a or the discharge channel 10 is a discharge hopper of unitary design.

In the invention, the tail end of the storage bin 1 is provided with a straight pipe 101, and the material height adjusting device 2 is sleeved on the straight pipe 101.

Preferably, the length of the straight tube 101 is 600 to 2000mm, preferably 800 to 1800mm, more preferably 1000 to 1600mm.

In the present invention, the vertical cooler further comprises: a support 201, a gear bracket 301, a driven wheel 302 and a chain 303. Wherein: the outer side of the material height adjusting device 2 is provided with a support 201. The top cover 3 is provided with a gear bracket 301. The gear bracket 301 is provided with a driven wheel 302. One end of the chain 303 is connected with the support 201, and the other end of the chain 303 passes through the top cover 3 to be connected with the driven wheel 302.

Preferably, the gear bracket 301 is further provided with a transmission gear 304, and the transmission gear 304 is in fit connection with the driven wheel 302.

In the present invention, the transmission gear 304 is a transmission gear reducer.

Preferably, the transmission gear 304 is connected to a manual rocker 305 or a motor 306, and the manual rocker 305 or the motor 306 drives the transmission gear 304.

More preferably, the transmission gear 304 is provided with a backstop 315.

In the present invention, the vertical cooler further comprises: steel pipe 307. One end of the steel pipe 307 is connected with the support 201, and the other end of the steel pipe 307 passes through the top cover 3 to be connected with the chain 303. The other end of the chain 303 is connected to the driven wheel 302.

Preferably, the steel tube 307 extends out of the top cover 3. The length of the steel pipe 307 extending out of the top cover 3 is 0 to 1000mm, preferably 5 to 1000mm, preferably 10 to 1000mm, preferably 100 to 800mm, more preferably 200 to 600mm.

In the present invention, the number of the holders 201 is 2 to 10, preferably 3 to 8, more preferably 4 to 6. A gear holder 301 is provided directly above each support 201. Each gear bracket 301 is provided with a driven wheel 302. One end of each chain 303 is connected to the support 201, and the other end of the chain 303 is connected to the driven wheel 302.

In the present invention, one end of each steel pipe 307 is connected to the support 201. The other end of the steel pipe 307 is connected to the chain 303, and the other end of the chain 303 is connected to the driven wheel 302.

Preferably, the plurality of holders 201 are symmetrically disposed at the outer side of the material height adjusting device 2.

In the present invention, the vertical cooler further comprises: support 201, chain 303, hoist support 308, hoist 309. Wherein: the outer side of the material height adjusting device 2 is provided with a support 201. The top cover 3 is provided with a hoist bracket 308. The hoist 309 is disposed on the hoist mount 308. One end of the chain 303 is connected with the support 201, and the other end of the chain 303 passes through the top cover 3 and is connected with the lifting hook of the hoist 309.

Preferably, the vertical cooler further comprises: steel pipe 307. The chain 303 is replaced with a steel tube 307. One end of the steel pipe 307 is connected with the support 201, and the other end of the steel pipe 307 passes through the top cover 3 and is connected with the lifting hook of the hoist 309.

Preferably, the hoist 309 is a manual hoist or an electric hoist.

In the present invention, the number of the holders 201 is 2 to 10, preferably 3 to 8, more preferably 4 to 6. A hoist bracket 308 is provided directly above each support 201. A hoist 309 is provided on each hoist support 308. One end of each chain 303 is connected to the support 201, and the other end of the chain 303 is connected to the hoist 309.

In the present invention, one end of each steel pipe 307 is connected to the support 201, and the other end of the steel pipe 307 is connected to the hoist 309.

In the present invention, the vertical cooler further comprises: a support 201, a steel pipe 307 and a lifting device 310. Wherein: the outer side of the material height adjusting device 2 is provided with a support 201. The top cover 3 is provided with a lifting device 310, one end of the steel pipe 307 is connected with the support 201, and the other end of the steel pipe 307 passes through the top cover 3 and is connected with the lifting device 310.

In the present invention, the number of the holders 201 is 2 to 10, preferably 3 to 8, more preferably 4 to 6. A lifting device 310 is provided directly above each support 201. One end of each steel pipe 307 is connected to the support 201, and the other end of the steel pipe 307 is connected to the lifting device 310.

In the present invention, a plurality of elevating devices 310 are connected to an elevating motor 313 through a connecting rod 311 and a gear box 312.

Preferably, a counter 314 is also included. The counter 314 is connected to the lift motor 313.

More preferably, the lifting device 310 is a screw lifter.

Typically, the hood M extends into the tower interior space such that the height of the hood air duct M04 (i.e., the stem of the hood) is sufficient to reach the height of the wind ring H.

Preferably, a cold sinter conveyor 11 is provided at or below the end of the discharge path 10, for example at the end of a discharge chute or below a discharge hopper.

Preferably, a tower wall transition section 4a is further provided at the lower or lower part of the tower wall 4 and above the tower cone 5. In this way, the tower cone 5 is more convenient to install in the lower part of the tower wall 4. In this case, the tower is formed by a tower top cover 3, a tower wall 4 and a lower (back-tapered) tower wall transition 4a. The tower wall transition section 4a has an inverted conical cylindrical shape, i.e. its lower portion has an inner diameter smaller than the inner diameter of its upper portion. May also be referred to as a transition bucket or as an upper cone bucket. The cone angle of the inverted cone-shaped tower wall transition section 4a is typically 60-75 degrees, preferably >63.5 degrees.

The outer diameter of the lower end of the tower cone 5 is smaller than that of the upper end. Thus, the tower cone 5 takes on an inverted cone shape or an inverted cone shape.

Generally, the vertical cooler A1 further includes an air ring air supply device 6, and the air ring air supply device 6 includes an air ring air duct 601 and an air ring air duct 602 connected to the air ring air duct 601, and the air ring air duct 601 surrounds and communicates with the air ring H.

Generally, the vertical cooler A1 further includes a hood air supply 7, and the hood air supply 7 includes a plurality of hood branch pipes 701, an annular or "C" shaped hood air duct 702, and a hood air duct 703 connected to the hood air duct 702, one end of each hood branch pipe 701 communicating with the hood air duct 702 and the other end communicating with the bottom or stem of the hood M. The stem is here depicted as a hood air duct M04. The hood duct 703 is connected to a blower for supplying air to the hood duct 702.

Preferably, a temperature probe 9 is provided at the lower part of the tower wall 4. More preferably, the temperature measuring probe 9 is a thermocouple temperature sensor.

The height h1 of the tower body cone 5 is greater than the stacking height h2 of the tower wall 4

In general, the number of the discharge outlets 5a in the lower part of the tower cone 5 is 4 to 12, preferably 6 to 10, and 6 to 8.

Typically, the number of hood branches 701 is 1 to 12, preferably 2 to 10, more preferably 4 to 8, and even more preferably 6 to 8. Preferably, the hood branch 701 is connected to the bottom of the hood M by bending downward, or the hood branch 701 is connected to the stem of the hood M, i.e., the hood wind pipe M04, through the wall of the tower cone 5.

Preferably, the hood M includes a support frame M01, a hood top cover M02, a plurality of conical cover plates M03, and a hood air duct M04, wherein the plurality of conical cover plates M03 are sequentially arranged on the support frame M01, and the diameters of the bottoms of the conical cover plates M03 are sequentially increased from top to bottom; the hood top cover M02 is arranged above the topmost conical cover plate M03, and the air pipe M04 is arranged below the supporting frame M01 and connected with the supporting frame M01. Preferably, the hood top cover M02 has a tapered structure.

Preferably, the vertical cooler A1 further comprises a control system K, which is connected to the height adjusting device 2, the motor 306, the hoist 309, the lifting device 310, the air ring air supply device 6, the hood air supply device 7, the temperature measuring probe 9, the discharge gate 12, and the cold sinter transporting device 11, and controls the operations of the height adjusting device 2, the motor 306, the hoist 309, the lifting device 310, the air ring air supply device 6, the hood air supply device 7, the temperature measuring probe 9, the discharge gate 12, and the cold sinter transporting device 11.

(1) Sinter enters a feed bin 1 of a vertical cooler A1, continuously flows from top to bottom under the action of gravity, and is filled around a lower port of a material height adjusting device 2 under the condition of free accumulation, and a material height adjusting device 3 moves up and down to realize material height change;

(2) The air ring air supply device 6 and the air cap air supply device 7 of the vertical cooler A1 respectively convey cooling air (namely cold air or air) into the tower body through the air ring H and the air cap M, the cooling air passes through a sinter bed piled in the tower body from bottom to top and carries out countercurrent heat exchange with the sinter, the temperature of the cooling air is gradually increased after the heat exchange, the cooling air is discharged through the sinter level in the tower of the vertical cooler A1 to form high-temperature hot air, and the high-temperature hot air is discharged through the hot air outlet 8; preferably, the high temperature hot wind is delivered to a waste heat utilization system (e.g., a waste heat power generation system);

(3) The sintered ore accumulated in the tower body of the cooler is cooled by countercurrent heat exchange with the cooling gas from bottom to top, enters the tower body cone 5 at the lower part of the vertical cooler A1, is discharged from a plurality of discharge outlets 5a at the bottom of the tower body cone 5, and is discharged (for example, onto the cold sintered ore conveyor 11) through a discharge passage 10.

Preferably, the control system K controls the operations of the height adjusting device 2, the motor 306, the hoist 309, the elevating device 310, the wind ring wind supply device 6, the hood wind supply device 7, the discharge gate or the discharge shutter 12, and the cold sinter conveyor 11 according to the temperature detected by the temperature measuring probe 9.

Preferably, a temperature measuring probe 9 is provided corresponding to each discharge outlet 5a, and the control system K controls the operation of the corresponding discharge gate or shutter 12 to move up and down according to the temperature detected by each temperature measuring probe 9. The temperature of the material above the discharge gate or the discharge shutter 12 is adjusted by lifting or opening and closing the discharge gate or the discharge shutter.

Preferably, in the vertical cooler A1, the height h1 of the tower cone 5 is greater than the stacking height h2 of the tower wall 4.

In the invention, the materials are discharged from the lower part of the tower body cone 5 from inside to outside through the discharge gate, so that the downward discharge speed difference of the materials at the center and the edge in the vertical cooler tower can be reduced as much as possible. The cooled sinter discharged from the discharge gate flows into a lower discharge channel (for example, a lower chute), flows out from a lower outlet of the discharge channel (for example, a lower chute), flows into a conveyor at the lower part of the discharge channel, and is conveyed to the next process by the conveyor. After heat exchange with the hot sinter, the cooling air entering the tower cools the hot sinter to below 150 ℃, and the hot sinter is heated to a higher temperature to become hot air, the hot air passes through the material surface at the top end of the material layer after passing through the material layer, enters a material-free area at the upper end of the tower formed by the top cover and the tower wall, and then is discharged through a hot air outlet to enter a subsequent waste heat power generation system.

The hot sinter crushed by the single-roller crusher is transported to the top of the vertical cooler by the hot sinter conveying device, enters the vertical cooler bin, continuously flows from top to bottom under the action of gravity, and is filled around the lower port of the material height adjusting device under the condition of free stacking, so that the material height change is realized by the upward and downward movement of the material height adjusting device; and (3) carrying out countercurrent heat exchange with cooling air from bottom to top in the machine, cooling the sinter to below 150 ℃, passing through a tower cone at the lower part of the vertical cooler, discharging the sinter into a discharging channel (such as a lower chute) through a discharging gate, discharging the sinter from the tail end or the lower part of the discharging channel onto a cold sinter conveyor, and transporting the cooled sinter to the next process by the cold sinter conveyor.

In general, the height of the column, which is composed of the column head, column wall, column cone below the column wall and column bottom, is generally from 6 to 30 meters, preferably from 6.5 to 28 meters, preferably from 7 to 25 meters, more preferably from 8 to 20 meters. The outer diameter of the column is generally from 8 to 30 meters, preferably from 9 to 27 meters, preferably from 10 to 25 meters, preferably from 11 to 22 meters, more preferably from 12 to 20 meters.

Example 1

The height of the tower body of the cooler, which consists of the top cover and the tower wall, is 9 meters. The outer diameter of the tower body is 13 meters. The diameter of the hood was 2.5 meters. The height of the tower cone 5 is 5.5 meters. The inner diameter of the wind ring is 10.5 meters.

The daily handling capacity of the sinter was 8650 tons/day. The temperature of the sinter before entering the storage bin is 700 ℃, and the hot air temperature of the hot air outlet 8 reaches 500 ℃. The recovered heat was used for power generation, and the generated power was about 35 degrees.

Compared with the ring cooler in the prior art, the ring cooler has the advantages that: the technology of the invention can provide hot air with higher temperature for generating high-temperature steam, and remarkably improves the power generation efficiency because of better tightness.

Claims

1. A flashboard discharge type vertical cooler is characterized in that: the vertical cooler (A1) comprises: the device comprises a storage bin (1), a material height adjusting device (2), a tower body composed of a tower body top cover (3), a tower wall (4), a tower body cone (5) below a position Yu Dabi (4) and a tower bottom (D), a wind ring (H), a wind cap (M), a plurality of discharge outlets (5 a) arranged at the lower part of the tower body cone (5) and a hot air outlet (8) arranged at the upper part of the tower wall (4) or on the tower body top cover (3);

wherein the top cover (3) is fixedly connected with the upper end of the tower wall (4), the material bin (1) is arranged above the top cover (3), the upper end of the material height adjusting device (2) is connected with the bottom of the material bin (1), the lower end of the material height adjusting device (2) stretches into the lower part of the top cover,

the plurality of discharging outlets (5 a) are annularly distributed around the lower part of the tower body cone (5) or the plurality of discharging outlets (5 a) are uniformly distributed along the circumferential direction of the lower part of the tower body cone (5),

a fixed gap of a circle is formed between the lower part of the tower wall (4) and the top of the tower body cone (5) as a wind ring (H),

the central position of the tower bottom (D) is provided with a hood (M) which extends upwards into the space in the tower body, and

A discharge gate or a discharge gate plate (12) is correspondingly arranged at each discharge outlet (5 a), and a discharge channel (10) is arranged below the discharge gate (12); the discharge channel (10) is a discharge chute corresponding to each discharge outlet (5 a) or the discharge channel (10) is a discharge hopper of integral design;

the vertical cooler further includes: support (201), gear support (301), follow driving wheel (302), chain (303), wherein: a support (201) is arranged on the outer side of the material height adjusting device (2); a gear bracket (301) is arranged on the top cover (3), and a driven wheel (302) is arranged on the gear bracket (301); the gear bracket (301) is also provided with a transmission gear (304), and the transmission gear (304) is connected with the driven wheel (302) in a matching way; the vertical cooler further includes: a steel pipe (307), one end of the steel pipe (307) is connected with the support (201), the other end of the steel pipe (307) penetrates through the top cover (3) to be connected with the chain (303), and the other end of the chain (303) is connected with the driven wheel (302); the steel pipe (307) extends out of the top cover (3), and the length of the steel pipe (307) extending out of the top cover (3) is 0-1000 mm; the number of the supports (201) is 2-10, a gear bracket (301) is arranged right above each support (201), and a driven wheel (302) is arranged on each gear bracket (301); one end of each steel pipe (307) is connected with the support (201), the other end of each steel pipe (307) is connected with the chain (303), and the other end of the chain (303) is connected with the driven wheel (302);

Or (b)

The vertical cooler further includes: support (201), calabash support (308), calabash (309), wherein: a support (201) is arranged on the outer side of the material height adjusting device (2); a hoist bracket (308) is arranged on the top cover (3), and a hoist (309) is arranged on the hoist bracket (308); the vertical cooler further includes: a steel pipe (307); one end of the steel pipe (307) is connected with the support (201), and the other end of the steel pipe (307) passes through the top cover (3) to be connected with a lifting hook of the hoist (309); the steel pipe (307) extends out of the top cover (3), and the length of the steel pipe (307) extending out of the top cover (3) is 0-1000 mm; the number of the supports (201) is 2-10, a hoist bracket (308) is arranged right above each support (201), and a hoist (309) is arranged on each hoist bracket (308); one end of each steel pipe (307) is connected with the support (201), and the other end of each steel pipe (307) is connected with the hoist (309);

a tower wall transition section (4 a) is further arranged at the lower part or the lower part of the tower wall (4) and above the tower body cone (5);

the height h1 of the tower body cone (5) is larger than the stacking height h2 of Yu Dabi (4).

2. The vertical cooler according to claim 1, wherein: the tail end of the storage bin (1) is provided with a straight pipe (101), and the material height adjusting device (2) is sleeved on the straight pipe (101).

3. The vertical cooler according to claim 2, wherein: the length of the straight pipe (101) is 600-2000 mm.

4. A vertical cooler according to claim 3, characterized in that: the length of the straight pipe (101) is 800-1800mm.

5. The vertical cooler according to claim 4, wherein: the length of the straight pipe (101) is 1000-1600mm.

6. The vertical cooler according to claim 1, wherein: the transmission gear (304) is a transmission gear reducer; and/or

The length of the steel pipe (307) extending out of the top cover (3) is 100-800mm.

7. The vertical cooler according to claim 6, wherein: the transmission gear (304) is connected with a manual rocker (305) or a motor (306), and the manual rocker (305) or the motor (306) drives the transmission gear (304); and/or

The length of the steel pipe (307) extending out of the top cover (3) is 200-600mm.

8. The vertical cooler according to claim 7, wherein: the transmission gear (304) is provided with a backstop (315).

9. The vertical cooler according to claim 1, wherein: the number of the supports (201) is 3-8; and/or

The plurality of supports (201) are symmetrically arranged on the outer side of the material height adjusting device (2).

10. The vertical cooler according to claim 9, wherein: the number of the supports (201) is 4-6.

11. The vertical cooler according to any one of claims 1 to 10, characterized in that: the tail end or the lower part of the discharging channel (10) is provided with a cold sinter conveyor (11).

12. The vertical cooler according to any one of claims 1-10, characterized in that the vertical cooler (A1) further comprises a wind ring wind supply device (6), the wind ring wind supply device (6) comprising a wind ring wind channel (601) and a wind ring wind pipe (602) connected to the wind ring wind channel (601), the wind ring wind channel (601) surrounding the wind ring (H) and communicating therewith; and/or

The vertical cooler (A1) further comprises a hood air supply device (7), wherein the hood air supply device (7) comprises a plurality of hood branch pipes (701), an annular or C-shaped hood air duct (702) and a hood air duct (703) connected with the hood air duct (702), one end of each hood branch pipe (701) is communicated with the hood air duct (702), and the other end of each hood branch pipe is communicated with the bottom or the stem of the hood (M).

13. The vertical cooler according to any one of claims 1 to 10, characterized in that: a temperature measuring probe (9) is arranged at the lower part of the tower wall (4); and/or

The number of the discharge outlets (5 a) is 4-12.

14. The vertical cooler according to claim 13, wherein: the temperature measuring probe (9) is a thermocouple temperature sensor; and/or the number of the discharge outlets (5 a) is 6-10.

15. The vertical cooler according to claim 14, wherein: the number of the discharge outlets (5 a) is 6-8.

16. The gate discharge type vertical cooler according to claim 12, wherein: the number of the hood branch pipes (701) is 1-12; the hood branch pipe (701) is downwards bent and connected to the bottom of the hood (M) or connected to the stem of the hood (M) through the wall of the tower cone (5); and/or

The hood (M) comprises a support frame (M01), a hood top cover (M02), a plurality of conical cover plates (M03) and a hood air pipe (M04), wherein the plurality of conical cover plates (M03) are sequentially arranged on the support frame (M01), and the diameters of the bottoms of the conical cover plates (M03) are sequentially increased from top to bottom; the hood top cover (M02) is arranged above the topmost conical cover plate (M03), and the hood air pipe (M04) is arranged below the support frame (M01) and connected with the support frame (M01); the hood top cover (M02) is of a conical structure.

17. The gate discharge type vertical cooler according to claim 16, wherein: the number of the hood branch pipes (701) is 2-10.

18. The gate-discharge type vertical cooler according to claim 17, wherein: the number of the hood branch pipes (701) is 4-8.

19. The gate-discharge type vertical cooler according to claim 18, wherein: the number of the hood branch pipes (701) is 6-8.

20. A method of cooling sinter using a ram-dump vertical cooler as set forth in any one of claims 1-19, characterized by: the method comprises the following steps:

(1) Sinter enters a feed bin (1) of a vertical cooler (A1), continuously flows from top to bottom under the action of gravity, and is filled around a lower port of a material height adjusting device (2) under the condition of free accumulation, and the material height adjusting device (2) moves up and down to realize material height change;

(2) The air ring air supply device (6) and the air cap air supply device (7) of the vertical cooler (A1) respectively convey cooling gas into the tower body through the air ring (H) and the air cap (M), the cooling gas passes through a sinter bed piled in the tower body from bottom to top, and carries out countercurrent heat exchange with the sinter, the temperature of the cooling gas is gradually increased after the heat exchange, the cooling gas is discharged from the sinter level in the tower of the vertical cooler (A1) to form high-temperature hot air, and the high-temperature hot air is discharged from the hot air outlet (8);

(3) The sintered ore accumulated in the tower body of the cooler is cooled by countercurrent heat exchange with cooling gas from bottom to top, enters the tower body cone (5) at the lower part of the vertical cooler (A1), is discharged from a plurality of discharge outlets (5 a) at the bottom of the tower body cone (5), and is discharged through a discharge channel (10).

21. The method according to claim 20, wherein: the cooling gas is air; the high-temperature hot air discharged through the hot air outlet (8) is conveyed into a waste heat utilization system; the waste heat utilization system is a waste heat power generation system; the discharge channel (10) discharges onto a cold sinter conveyor (11).