CN107014216B - Trough-type liquid-seal blast cooling device and method for sinter - Google Patents

Abstract

A trough-type liquid-sealed blast cooling device (1) for sinter, the device comprising: 1) an annular groove-shaped stacking box, wherein the box includes an inner ring wall (2), an outer ring wall (3) and a bottom integral ring-shaped tray (4); 2) the wheel-rail driving device (5) of the box body; 3) the ring-shaped machine cover (8) on the upper part of the box body; 4) the first air outlet connected to the top of the above-mentioned machine cover (8) Pipe (21) and the second air outlet pipe (22); 5) airtight annular air inlet chamber (11), 6) liquid sealing device (14), make the liquid sealing device (14) and the annular groove shape stacking box of rotation A sealing effect is formed between the inner ring box wall (2) and the outer ring box wall (3); 7) a plurality of blowers (9), and 8) are installed in the discharge section (1a) of the cooling device (1) ) on the outside of one or more scraper devices (6). The cooling device (1) has outstanding advantages in terms of manufacturing cost, reduction of environmental pollution and utilization of waste heat.

Description

Trough-type liquid-seal blast cooling device and method for sinter

technical field

The invention relates to a trough-type liquid-seal blast cooling device and a cooling method for sintered ore, and belongs to the fields of ironmaking and environmental protection.

Background technique

In the modern sintering process, "cooling" is one of the most critical processes. After the sintered ore has been roasted by the sintering machine, it has formed a high-temperature finished ore. How can it be protectively cooled without affecting its quality and yield, so that it can be sent to the finished product ore bin through a belt conveyor, and at the same time The perfect recovery and utilization of the sensible heat energy it carries has always been a problem that technicians in the industry have been constantly studying. Since the 1960s, the cooling process of sinter has been developed rapidly, which is mainly divided into three categories: belt cooling, ring cooling and disk cooling. In the late market competition, the strip cooling technology was eliminated, and the remaining ring cooling and disk cooling technologies each have their own advantages and disadvantages. However, comprehensive comparison shows that the waste heat utilization rate of disk cooling is better than that of ring cooling (all sensible heat of sinter can be recycled), so disk coolers are widely used in foreign markets, and this patent also elaborates on the technology of disk coolers.

The technology of disk coolers has been developed since the 1970s. At the beginning, it was horizontal disk cooling, that is, the cooling air flows from the inner ring to the outer ring of the disk cooler, and passes through the material layer to be cooled to exchange heat with it. The cooling air is directly discharged to the atmosphere. This is neither economical nor environmentally friendly. After years of continuous research and optimization, the latest disk cooler technology is the "ventilated longitudinal disk cooling technology" proposed by Japan's Mitsubishi Hitachi and Zhongsheng Iron and Steel. This technology adopts air extraction, which draws the cooling air from the atmosphere into the bottom of the material to be cooled, then passes through the material layer vertically upwards, and finally blows out from the upper part of the material layer to enter the subsequent process. Compared with the original scheme, this scheme has been greatly optimized and improved. The following will introduce this scheme in detail.

JP2008232519A (Mitsubishi Hitachi and Zhongsheng Iron and Steel, hereinafter referred to as D1) discloses the ventilation type longitudinal plate cooling technology, see Figure 1 in it: hot sintered ore falls from the tail of the sintering machine into the feed chute, and accumulates in the chute to form a certain height of material Column, on the one hand, it can play the role of uniform feeding, on the other hand, it can play the role of material sealing to prevent the air from passing through the feeding port. The mineral material continues to pass through the hood and then enters the cooler box, pushing it into a material column of a certain height. At the same time, affected by the negative pressure of the exhaust fan, the air near the plate cooler will be sucked into the material column through the louver air intake device, and pass through the material column from bottom to top to exchange heat with it. The top surface of the material column passes through the air outlet, is sent to the gravity dust collector and waste heat boiler, and finally is discharged outside after passing through the exhaust fan. After being cooled by air, the sintered material forms an annular accumulation area with a cross-section of a 37-degree accumulation angle triangle at the lower tray of the plate cooler. When it is rotated to the unloading area, the sintered material is scraped off by the scraper device to complete the cooling process. Enter the next process link.

Although Mitsubishi Hitachi and Zhongsheng Steel's "ventilated longitudinal plate cooling technology" has made significant progress compared with conventional technologies, it still has the following five defects:

1) The overall height requirement of the device is too high: since the "ventilated longitudinal plate cooling technology" adopts the draft method, it is necessary to install a material seal at the position of the feed inlet, that is, the material column accumulated in the feed chute in Figure 1 of D1, The height of the material seal is 1.2 to 1.5 times the height of the material column in the cooler box as the standard. In this way, the height of the entire set of plate coolers is virtually increased. During construction and installation, either the elevation of the entire sintering machine needs to be raised, or the civil engineering plane of the plate cooler needs to be dug down. No matter which way you choose, it will cause a high investment cost, which is not cost-effective in terms of economic indicators;

2) The open circulation of the air flow leads to low utilization rate of waste heat and pollutes the environment: Since the air flow of the "extraction type longitudinal plate cooling technology" is an open circuit circulation, the air from the waste heat boiler is directly exhausted and not recycled, resulting in more than 100 Sensible heat of the air at a high temperature is wasted, and the discharged air contains a large amount of small particles of dust, causing a certain degree of particle pollution to the atmosphere;

3) The material at the feed inlet is severely worn: due to the "ventilated longitudinal plate cooling technology" that sets the material seal at the feed chute, there will be a friction distance between the lower part of the material seal and the upper layer of the material surface in the plate cooler box. At this time, the sintered material is easily pulverized and broken when it is rubbed under the double-layer harsh working conditions of high temperature and upper material column extrusion, thereby reducing the yield of the sintering machine;

4) The environmental pollution is serious: due to the negative pressure ventilation technology adopted in the "ventilation type longitudinal plate cooling technology", it does not set a sealing cover device at the lower tray of the box body. In this way, when the sintered ore is scraped off by the scraper device, it is easy to cause a large number of fine particles and dust to splash. And once the exhaust fan fails to be repaired, all the material dust pushed around the plate cooler will enter the atmosphere, causing extremely bad effects on the operating environment next to the machine;

5) The thermal efficiency of the waste heat boiler has not reached the highest level: because the "draft-type longitudinal plate cooling technology" does not accurately classify the air passing through the material layer according to the air temperature, but mixes it all into the waste heat boiler, so when the outlet air temperature of the low-temperature section is too low , it will inevitably lower the temperature of the air entering the waste heat boiler, thereby reducing the thermal efficiency value of the waste heat boiler.

In view of the above five defects, we conducted an in-depth analysis of the process technology and device technology of the "ventilated longitudinal plate cooling technology". The patented solution technology with high ore yield and greatly alleviated environmental pollution beside the machine strives to effectively solve the problems existing in the existing technology and contribute to the energy-saving and environmental protection indicators of the sintering process.

SUMMARY OF THE INVENTION

According to the first embodiment of the present application, there is provided a (annular) trough-type liquid-sealed blast cooling device for sintering, referred to as a trough cooler or an annular cooling device, which includes:

1) The sintered ore from the sintering machine is piled up from the top and discharged from the lower peripheral annular discharge port (that is, the ring-shaped trough-shaped box), wherein the box includes the inner Full-circle annular trays on the ring wall, outer ring wall and bottom;

2) A wheel-rail driving device for driving the above-mentioned annular groove-shaped stacking box to make a rotary motion in the horizontal direction;

3) An annular machine cover (or called a protective cover) provided on the above-mentioned annular groove-shaped stacking box to cover the upper part of the above-mentioned stacking box;

4) At least one air outlet duct (preferably at least two air outlet ducts, such as 1-10, such as 2-6 or 2-4) connected to the top of the hood; preferably, there are at least two outlet ducts The air duct is connected to the top of the hood, wherein the at least two air outlet ducts include a first air outlet duct close to the box discharge section and a second air outlet duct away from the box discharge section;

5) By adding a sealing cover along the outer periphery of the box body at the lower part of the trough-type liquid-sealed blast cooling device, a closed ring-shaped air inlet chamber is formed on the outer ring of sintered material accumulation,

6) The liquid sealing device is provided on the upper and lower parts of the air inlet chamber (for example, at the bottom of the tray), so that the liquid sealing device and the inner ring box wall and outer ring box wall of the rotating ring groove-shaped stacking box form a seal;

7) A plurality of blowers, their air outlets are respectively connected to the airtight annular air inlet chamber through their respective corresponding air inlet pipes; and

8) One or more scraper devices installed on the outside (ring) of the discharge section of the (ring) cooling device, the latter is surrounded by a sealing cover in the ring-shaped airtight air inlet chamber,

Among them: the scraper of the scraper device does not extend into the bottom (full circle) annular discharge port of the box, that is, the depth of the scraper of the scraper device in the cross-sectional direction of the box should not exceed the inner wall surface of the outer ring wall of the cooling device As a standard, or, the scraper of the scraper device extends into the bottom (full circle) annular discharge port of the box, preferably, the end of the scraper is close to the inner ring wall.

The sealing effect of the air inlet chamber not only depends on the upper and lower liquid sealing devices, but also depends on the sealing effect of the material, that is, the material seal. The material seal includes the (sintered ore) material seal in the box and the (sintered ore) material seal in the discharge chute (or discharge chute).

Generally, a wheel-rail drive device includes rollers and tracks. Wherein the roller comprises a driving wheel and an optional driven wheel. The drive wheels are powered or driven by an electric motor. The track is supported on rollers. The track can be fixed on the bottom of the box (such as the bottom of a pallet), on the side or on the top (hanging type).

The tray has a force plate and an annular air distribution chamber above the force plate. The cross section of the annular air distribution chamber presents a right triangle or a similar right triangle. The three sides of the triangle are respectively the bearing plate, the inner ring box wall and the (circular or along the entire circle of the tray) air inlet sloping plate (one side of the cross section of the three). There are many parallel small plates (horizontal or slightly inclined) spaced up and down on the air inlet sloping plate, which are arranged in sequence from top to bottom. An air intake channel is formed in the tray. There is an air inlet passage in the bearing plate. The wind (or air flow) in the annular air inlet chamber passes through the air inlet channel in the bearing plate, the annular air distribution chamber and the air inlet sloping plate successively to reach the bottom space of the box body (ie, in the bottom material).

Preferably, the parallel plates in the tray are horizontal. During the production of the tank cooler, the materials in the machine will accumulate on the outer ends of the parallel small plates and form an accumulation angle of about 37 degrees. In this way, the technical effect that only wind can go out and materials cannot be fed is formed in this place.

Preferably, a wheel-rail drive (or system) is provided at the bottom of the pallet. The wheel-rail driving device includes: (supporting or driving) rollers, at least two or at least one pair of (circular or full-circle circular) guide rails installed on the bottom of the tray, motor, coupling, reducer, rotating shaft, and support.

In the unloading section of the cooling device, a feed chute is installed above the ring-shaped stacking box. A material scraper is provided downstream of the feed chute.

The cooling device also includes: a top cover of the tank cooler installed on the top of the tank cooler. During installation, it is first hoisted to a certain position by the hoisting port, and then moved to the designated position for production by means of the top cover installation rollers. After it is put into production (that is, when the box is rotating), the top cover of the tank cooler will no longer move. The top cover of the tank cooler is supported by the top cover installation rollers installed on the bracket or pillar.

Preferably, the first air outlet pipe is connected to the waste heat boiler of the power generation equipment, and the second air outlet pipe is switchably connected to the waste heat boiler of the power generation equipment through a pipeline or directly connected to the air inlet of the blower through a bypass. More preferably; a gravity dedusting device is arranged upstream of the gas path of the waste heat boiler, that is, the first air outlet pipe and/or the second air outlet pipe are connected to the waste heat boiler of the power generation equipment through the gravity dedusting device. Preferably; a bag filter and an optional economizer are arranged sequentially downstream of the gas path of the waste heat boiler. The air outlet of the bag filter or economizer is connected to the air inlet of each blower. In this way, the wind flow closed loop is realized. Because the invention adopts a closed air blowing process, it can realize the closed loop of wind flow. This technology adds a bag filter and an economizer (open or close depending on the situation) at the back of the original process, and recycles the air after leaving the waste heat boiler after fine particle dust removal and blows it into the annular air inlet chamber as cooling air. Realize no sensible heat waste and no atmospheric emission of particulate matter in the whole process.

Preferably, one or more scraper devices are arranged upstream of the discharge section and the feed chute is located downstream of the discharge section. In this way, the high-temperature iron ore material coming down from the tail of the sintering machine is added to the depression or settling part after unloading. Then use the material scraper to scrape it flat. The scraper extends into the bottom of the casing from a (ring-shaped) discharge opening at the bottom of the cooling device casing.

Preferably, a buried material seal is used. Because the present invention changes draft into blast, so the main position that prevents cross-wind has just changed to the bottom of material layer from the upper part of the material layer. A discharge chute and an electric vibration feeder are arranged at the discharge opening of the discharge section, preferably, the discharge chute is buried in the ground (below) as a whole.

Preferably, a plurality of pressure relief and ventilation devices, such as bypass and cross-wind pressure relief devices, are provided outside the outer ring wall. One end (such as the lower end) of the pressure relief ventilation device (such as the bypass air pressure relief device) is connected to the airtight annular air inlet chamber, and the other end (such as the upper end) is connected to the external environment of the box (that is, the atmospheric environment outside the box) or It is connected to the air intake equipment (such as air intake beams, shutters or air intake pipes) located in the upper space of the box. Preferably, a plurality of (upper) air inlet devices (for example upper air inlet beams, upper air inlet beams, equipment such as louvers or intake ducts), such as multiple upper intake beams. Preferably, the bypass air pressure relief device includes a bypass air pipe, a rotating shaft, a windshield, a roller and a horizontal circular track (referred to as a special-shaped track) with a downward concave deformation in the discharge section. Preferably, the upper air inlet beam or air inlet pipe has a circular, oval, circular or polygonal (eg triangular, quadrangular or pentagonal) cross-section. Preferably, side (inclined) through holes are opened on two or more sides of the upper air inlet beam or air inlet pipe and downward through holes are opened on the bottom side. That is, the side vias slope downward, while the down vias point downward. These through holes are vent holes.

Preferably, the two ends of the air inlet device arranged in the upper space of the box body are respectively arranged on the inner ring wall and the outer ring wall. Generally, the air inlet device can be installed horizontally or obliquely. The air inlet opening end of the air inlet equipment (such as equipment such as air inlet beams, louvers or air inlet pipes) communicates with the upper end of the pressure relief ventilation device (such as a bypass series air pressure relief device).

Under normal conditions, the rollers of the bypass cross-wind pressure relief device run horizontally, and the tight connection between the windshield and the bypass air pipe prevents air from entering. When passing through the unloading area, due to the influence of the downward depression of the special-shaped track, the rollers move downward and pull the windshield at the same time, which causes one end of the windshield to rotate around the rotation axis and separate from the bypass air pipe. That is to say, it is in the open state, and the air in the annular air inlet chamber can enter the bypass air pipe to enter the air inlet beam N at the top of the material column of the trough-type liquid-sealed blast cooling device. The advantage of this is that a pressure relief is formed in the unloading area, so that the air pressure in this area is not as high as that in other areas, thereby reducing the possibility of air passing through the buried material seal. Lowering the height of the buried seal provides assistance.

Preferably, a plurality of brackets or pillars are erected on both sides of the annular groove-shaped stacking box of the cooling device. Limiting retaining wheels are arranged on both sides of the upper part of the annular groove-shaped stacking box body of the cooling device. Wherein the limit retaining wheel is fixed on the support or the pillar.

The present application also provides a sinter cooling method using the trough-type liquid-sealed blast cooling device for sinter, the method comprising: 1) the cooling device performs (full circle) rotary motion under the drive of the wheel-rail driving device; In the discharge section, the iron ore material (M) is scraped off from the discharge port at the bottom of the cooling device box by means of a scraper device for discharge (for example, scraped into the discharge chute), 3) from the sintering machine The sintered ore is added from the feed chute into the ring-shaped stacking box (preferably, after that, the scraper is used to level the material), 4) from at least one air outlet duct connected to the top of the hood (preferably at least two air outlets) The hot air discharged from the pipeline) is transported to the waste heat boiler of the power generation equipment through the pipeline.

Preferably, step 4) includes the following sub-steps: 4.1) The hot air G1 discharged from the first air outlet pipe is transported to the waste heat boiler of the power generation equipment through the pipe, 4.2) The lower temperature hot air G2 discharged from the second air outlet pipe, when G2 When the temperature is high enough (that is, enough for the waste heat boiler of the power generation equipment), it is sent to the waste heat boiler of the power generation equipment through pipelines, or when the temperature of G2 is low, it is sent to the air inlet of the blower of the tank cooler through a bypass.

In the above method, preferably, the hot air G1 and/or G2 are transported to the waste heat boiler of the power generation equipment after the dust is removed by the gravity dedusting equipment.

Preferably, the low-temperature air G3 discharged from the waste heat boiler passes through the bag filter to further remove dust, and then is delivered to the air inlets of the blowers of the slot cooler after further waste heat utilization through the economizer or without passing through the economizer. In this way, the wind flow closed loop is realized. Because the invention adopts a closed air blowing process, it can realize the closed loop of wind flow. This technology adds a bag filter and an economizer (open or close depending on the situation) at the back of the original process, and recycles the air after leaving the waste heat boiler after fine particle dust removal and blows it into the annular air inlet chamber as cooling air. Realize no sensible heat waste and no atmospheric emission of particulate matter in the whole process.

In operation, the tank rotates along the revolution circle (or revolution circumference) of the tank cooler. The circumference of revolution (2πR) of the box is generally 60-350 meters, preferably 70-320 meters, preferably 80-300 meters, preferably 90-280 meters, more preferably 120-250 meters, such as 150-200 meters.

The height of the casing (that is, the height from the bottom tray surface to the upper edge of the casing) of the tank type liquid-sealed blast cooling device for sintering is 1.5-7.0 meters, preferably 2.5-6.5 meters, preferably 3.5-6 meters, more preferably Preferably 4-5.5 meters, more preferably 4.5-5.0 meters.

Compared with traditional annular cooler technology and disk cooler technology, as shown in Figure 1-Figure 11, there are mainly the following five changes:

A1. Adopt a new type of airtight air blast to replace the previous air extraction: the present invention cancels the air extraction process, and replaces it with an annular airtight chamber air blast air intake process. A sealing cover 11a is added to the outer ring of the sintered material accumulation at the lower part of the outer periphery of the trough cooler. A circle of airtight annular air inlet chamber 11 is formed, and the upper and lower sides of the air inlet chamber are equipped with liquid sealing device 14, so that it is connected with the inner ring wall 2 of the rotating tank cooler (that is, groove type liquid seal blast cooling device). A sealing effect is formed between it and the outer ring wall 3 . The air is blown out from the blower 9, and enters the airtight annular air inlet chamber 11 after passing through the air inlet pipe 10. Since the top and bottom are sealed, the air can only enter the bottom of the material layer from the bearing plate 401 of the tray 4 through the annular air distribution chamber 402. It travels upwards in the material layer and finally blows out from the material surface.

A2. Buried material seal is adopted: Since the present invention changes draft to blast, the main position to prevent cross-wind is changed from the upper part of the material layer to the lower part of the material layer. The present invention adopts the mode that the discharge chute 15 is buried in the ground as a whole at the discharge port. Partially excavate pits on the civil engineering plane, and bury the unloading chute 15, so that the overall height of the entire trough cooler will not be raised, nor will excessive civil engineering foundation excavation costs be increased.

A3. Adding a bypass air pressure relief device: In order to further reduce the height of the buried material seal and reduce the construction and installation costs. In the present invention, a bypass cross-wind pressure relief device 12 is added to the tank cooler. The device is composed of a bypass air pipe 1201, a rotating shaft 1202, a wind shield 1203, a roller 1204 and a special-shaped track 1205. Under normal conditions, the rollers 1204 are running horizontally, and air is tightly bound between the windshield 1203 and the bypass air duct 1201 and cannot enter. When passing through the unloading area, due to the influence of the downward depression of the special-shaped track 1205 in the unloading section, the roller 1204 moves downward and pulls the windshield 1203 at the same time, so that one end of the windshield 1203 is centered on the rotating shaft 1202 Rotate to separate from the bypass air pipe 1201. At this time, the air in the annular air inlet chamber 11 can enter the bypass air pipe 1201 and thus enter the air inlet beam N on the upper part of the material column of the slot cooler. The advantage of this is that a pressure relief is formed in the unloading area, so that the air pressure in this area is not as high as that in other areas, thereby reducing the possibility of air passing through the buried material seal. Reduce the height of the buried material seal to help;

A4. Adopt closed-circuit circulation of wind flow: Since the invention adopts a closed-type blowing process, closed-circuit circulation of wind flow can be realized. This technology adds a bag filter 19 and an economizer 23 (open or close depending on the situation) at the back of the original process, and recycles the air after leaving the waste heat boiler through fine particle dust removal and blows it into the annular air inlet chamber 11 to serve as cooling wind. Realize no sensible heat waste and no atmospheric emission of particulate matter in the whole process.

A5. Add multi-element air extraction device: the present invention improves on the original air outlet device, and sets multi-element air acquisition device, the user can freely adjust the air temperature entering the waste heat boiler according to the air temperature of different sections of the air outlet caused by different sinter characteristics The air volume to ensure that the thermal efficiency of the boiler is maintained in a high range. As shown in FIG. 2 , the present invention sets at least one air outlet at two positions near the feed inlet section and away from the feed inlet section of the tank cooler, which are respectively the first air outlet pipe 21 and the second air outlet pipe 22 . Because it is close to the feed inlet section, the air temperature of the air outlet pipe 21 is guaranteed, and because it is far away from the feed inlet section, the air temperature of the air outlet pipe 22 will be adjusted according to the machine speed, material layer height, material column air permeability, etc. There are many factors to change, it may be high or it may be low. If the thermocouple measures that the temperature of the air outlet pipe 22 at this time is high enough, the system automatically opens the second regulating valve (butterfly valve) 30 and closes the first regulating valve (butterfly valve) 29 at the same time, and the airflows of the two air outlet pipes are combined at the same time. Enter the waste heat boiler 28 together. If the thermocouple detects that the air temperature of the outlet pipe 22 at this time is not enough, and if the combination of the air flow in the high temperature section will affect the thermal efficiency of the waste heat boiler, the system will automatically close the second regulating valve 30 and open the first regulating valve 29 at the same time, then the air outlet pipe The airflow in 22 directly enters the blower air inlet through the bypass, and is blended into the circuit as the cooling air of the next cycle.

The scraper device 6 is installed on the (ring) outside of the discharge area of the (ring) tank cooler, and is wrapped in the ring airtight air inlet chamber 11 by the sealing cover. The penetration depth of the scraper in the cross-sectional direction shall not exceed the inner wall of the outer ring of the tank cooler, and one or more scrapers may be set along the ring direction according to the material flow. The device has no bottom air inlet beam, and the wind is uniformly introduced into the bottom of the material bed by means of setting a bearing plate 401 and an annular air distribution chamber 402.

In this application, "optionally" means to do or not to do. "Optional" means yes or no.

In this application, "circular" generally means the full circle around the tray or around the pan blast cooling device (1 ), unless otherwise stated.

Advantages or beneficial technical effects of the present invention

1. Compared with the prior art, the solution of the present invention has the following advantages:

1) The overall height requirement of the device is not high: since the material seal of the present invention is located at the material outlet and is designed in a buried manner, and a bypass pressure relief device is installed in the annular airtight chamber, the overall height of the tank cooler It has not caused too much impact, neither will it cause the overall elevation of the sintering machine to rise, nor will it cause the overall excavation of the civil foundation of the tank cooler;

2) Wind flow closed-circuit circulation: Since the air flow of the present invention is a closed-circuit cycle, the air from the waste heat boiler is not directly discharged outside, but is recycled as cooling air after secondary dust removal by the bag filter, so that the air is obviously The heat is completely recycled, and the particles are not discharged to the atmosphere, which is of great help to improve the environmental indicators beside the machine;

3) High sintering yield: due to the blast cooling adopted in the present invention, there is no extrusion friction problem between the upper material seal and the cooling material surface in the prior art, so the yield of the sintering machine can be greatly improved;

4) Can reduce environmental pollution: because the present invention is provided with a circle sealing cover at outer ring. Therefore, when the sinter is scraped off by the scraper device 6, or when the blower fails to be repaired, the atmospheric environment around the tank cooler will not be affected by the fine particles inside the plate cooler, which has positive significance for improving environmental protection indicators.

5) The thermal efficiency of the waste heat boiler can be maintained in a relatively high range: Since the present invention adopts a multi-type air intake device, the system can freely adjust the air volume entering the waste heat boiler according to the real-time detected air temperature, so the air temperature entering the boiler can be maintained at In a relatively high value range, it can ensure that the thermal efficiency of the waste heat boiler will not be too low.

To sum up, this new system invention solution effectively makes up for many defects of the original technical solution. Compared with the original technology, it is more energy-saving, safe, reliable and practical, and it can be expected to have a good market prospect in the future.

Description of drawings

Fig. 1 is a schematic cross-sectional view of a tank-type liquid-sealed blower cooling device (1) (ie, a tank cooler) of the present invention.

Fig. 2 is a schematic top view of the tank-type liquid-sealed blower cooling device (1) (that is, the tank cooler) of the present invention.

FIG. 3 is a partially enlarged schematic view of the tray 4 .

FIG. 4 is a schematic diagram of the arrangement of parallel plates 404 .

Fig. 5 is a schematic diagram of the wheel-rail driving device.

FIG. 6 is a partial structural schematic diagram of the upper liquid sealing device 14 .

FIG. 7 is a schematic diagram of the bypass pressure relief device 12 and its operating state.

FIG. 8 is a schematic cross-sectional view of the bypass cross-wind pressure relief device 12 traveling to two positions A-A and B-B respectively.

FIG. 9 is a schematic cross-sectional view of the air inlet beam N. FIG.

Figure 10 is a schematic diagram of a doctor blade apparatus.

Fig. 11 is a schematic cross-sectional view of another trough-type liquid-seal blast cooling device (1) (that is, a trough cooler) of the present invention (wherein the scraper extends into the box).

reference sign

1: Tank-type liquid-seal blast cooling device (that is, tank cooler); 1a: Unloading section; 2: The inner ring wall of the ring-shaped stacking box of the tank-type liquid-seal blast cooling device; 3: Box body Outer ring wall; 4: tray; 401: bearing plate; 402: annular air distribution chamber; 403: air inlet inclined plate; 404: parallel plate; 5: wheel-rail driving device; 501: (support or drive) roller; 502: guide rail; 503: motor; 504: coupling; 505: reducer; 506: shaft; 507: support; 6: scraper equipment or device; 601: scraper; 602: scraper base; 7: feed chute ;8: machine cover; 9: blower; 10: air inlet pipe; 11: annular airtight air inlet chamber; 11a: sealing cover; 1203: windshield; 1204: roller; 1205: special-shaped track; 13: limit stop wheel; 14: liquid sealing device; 15: feeding chute; 16: electric vibration feeder; : Gravity dust removal equipment; 19: Waste heat boiler; 20: Bag filter; 21, 22: First and second air outlet pipes; 23: Economizer; 24: Bracket or pillar; 25: Top cover of tank cooler; 26 : Roller for top cover installation; 27: Foundation; 28: Air duct; 29: First valve or regulating valve (butterfly valve); 30: Second valve or regulating valve (butterfly valve); 31: Directly to the air inlet of the blower pipeline. M: iron ore material; N: air inlet equipment (such as air inlet beam); N1: side (inclined) through hole; N2: bottom (downward) through hole. R: The radius of gyration of the box.

Detailed ways

As shown in Figure 1-11, a trough-type liquid-seal blast cooling device 1 for sinter is provided, which includes:

1) The sintered ore from the sintering machine is piled up from the top, and at the same time discharged from the lower peripheral annular discharge port, the box body includes the inner ring wall 2, the outer ring wall 3 and the bottom. Circle ring tray 4;

2) a wheel-rail driving device 5 for driving the above-mentioned annular groove-shaped stacking box to make a rotary motion in the horizontal direction;

3) An annular machine cover (or called a protective cover) 8 provided on the above-mentioned annular groove-shaped stacking box to cover the upper part of the above-mentioned stacking box;

4) at least one air outlet duct (preferably at least two air outlet ducts, such as 1-10, such as 2-6 or 2-4) connected to the top of the above-mentioned hood 8; preferably, there are at least two The air outlet duct is connected to the top of the above-mentioned hood 8, wherein the at least two air outlet ducts include a first air outlet duct 21 close to the box discharge section 1a and a second air outlet duct away from the box discharge section 1a twenty two;

5) By adding a sealing cover 11a along the outer periphery of the box body at the lower part of the trough-type liquid-sealed blast cooling device 1, a circle of airtight annular air inlet chamber 11 is formed by accumulating the outer ring of the sintered material,

6) The liquid sealing device 14 is provided on the upper and lower parts of the air inlet chamber (for example, at the bottom of the tray 4), so that the liquid sealing device 14 is connected to the inner ring box wall 2 and the outer ring box of the rotating ring groove-shaped stacking box. A sealing effect is formed between the body walls 3;

7) a plurality of blowers 9, their air outlets are respectively communicated with the airtight annular air inlet chamber 11 through respective corresponding air inlet pipes 10 ("intake" relative to the airtight annular air inlet chamber 11); and

8) One or more scraper devices 6 installed on the outside of the discharge section 1a of the cooling device 1, the latter is enclosed in the annular airtight air inlet chamber 11 by the sealing cover 11a,

Wherein: the scraper of scraper device 6 does not extend into the bottom (full circle) annular discharge port of the casing, that is, the depth of insertion of the scraper of scraper device 6 in the cross-sectional direction of the casing is not more than the outer ring of cooling device 1 The inner surface of the wall 3 is standard, or the scraper of the scraper device 6 extends into the bottom (full circle) annular discharge opening of the casing, preferably, the end of the scraper is close to the inner ring wall 2 .

The tray 4 has a force bearing plate 401 and an annular air distribution chamber 402 located above the force bearing plate 401 . The cross section of the annular air distribution chamber 402 is a right triangle or similar to a right triangle. The three sides of the triangle are the bearing plate 401 , the inner ring box wall 2 and the air inlet swash plate 403 (one side of the cross section of the three) (circular or along the entire circle of the tray). There are many parallel small plates 404 (horizontal or slightly inclined) spaced up and down on the air inlet inclined plate 403, arranged in order from top to bottom. An air inlet channel is formed in the tray 4 . There is an air inlet passage in the bearing plate 401 . The wind (or air flow) in the annular air inlet chamber 11 passes through the air inlet channel in the bearing plate 401, the annular air distribution chamber 402 and the air inlet swash plate 403 successively to reach the bottom space of the casing (ie in the bottom material).

In the device of the present application, two ways are adopted to enter the air from the annular air inlet chamber 11 to the bottom space (i.e. the bottom material) of the box body, one of which is through the annular discharge port on the bottom periphery of the box body, and the other way The way is through the force bearing plate, the annular air distribution chamber 402 and the air inlet sloping plate 403 .

Preferably, the parallel plates 404 in the tray 4 are horizontal. During the production of the tank cooler, the materials in the machine will accumulate on the outer ends of the parallel small plates 404 and form an accumulation angle of 37 degrees. In this way, the technical effect that only wind can go out and materials cannot be fed is formed in this place.

At the bottom of the pallet 4 there is a wheel-rail drive 5 (or system). The wheel-rail driving device 5 includes: (support or drive) rollers 501, at least two or at least one pair of (circular or full-circle circular) guide rails 502 installed on the bottom of the tray 4, motor 503, coupling 504, speed reducer 505, a rotating shaft 506, and a bearing 507.

In the discharge section 1 a of the cooling device 1 , a feed chute 7 is installed above the ring-shaped stacking box. Downstream of the feeding chute 7, a material scraping sheet is provided.

Preferably, the first air outlet pipe 21 is connected to the waste heat boiler 19 of the power generation equipment, and the first air outlet pipe 22 is connected to the waste heat boiler 19 of the power generation equipment through the pipeline 28 in a switchable manner or directly connected to the waste heat boiler 19 through the bypass 31. The air inlet of air blower 9. More preferably; a gravity dedusting device 18 is provided upstream of the gas path of the waste heat boiler 19 , that is, the first air outlet pipe 21 and/or the second air outlet pipe 22 are connected to the waste heat boiler 19 of the power generation device via the gravity dedusting device 18 . Preferably; a bag filter 20 and an optional economizer 23 are sequentially arranged downstream of the gas path of the waste heat boiler 19 . The air outlet of the bag filter 20 or the economizer 23 is connected to the air inlet of each blower 9 . In this way, the wind flow closed loop is realized. Because the invention adopts a closed air blowing process, it can realize the closed loop of wind flow. This technology adds a bag filter 20 and an economizer 23 (open or close depending on the situation) at the back of the original process, and recycles the air after leaving the waste heat boiler after fine particle dust removal and blows it into the annular air inlet chamber 11 for cooling. wind. Realize no sensible heat waste and no atmospheric emission of particulate matter in the whole process.

Preferably, one or more scraper devices 6 are arranged upstream of the discharge section 1a, while the feed chute 7 is located downstream of the discharge section 1a. In this way, iron ore material is added in the sunken or settled part after discharge. Then use the material scraper to scrape it flat.

Preferably, a buried material seal is used. Because the present invention changes draft into blast, so the main position that prevents cross-wind has just changed to the bottom of material layer from the upper part of the material layer. A discharge chute 15 and an electric vibrating feeder 16 are arranged at the discharge port of the discharge section 1a. Preferably, the discharge chute 15 is buried in the ground as a whole.

Preferably, a plurality of pressure relief ventilation devices 12 , such as bypass and cross-wind pressure relief devices 12 , are provided outside the outer ring wall 3 . One end (such as the lower end) of the pressure relief ventilation device 12 (such as the bypass cross-wind pressure relief device 12) is connected to the airtight annular air inlet chamber 11, and the other end (such as the upper end) is connected to the external environment of the casing (that is, the external atmosphere of the casing) Environment) or connected to the air intake equipment N located in the upper space of the box (such as air intake beam N, louver N or air intake pipe N, etc.). Preferably, a plurality of (upper) air inlet devices N (for example, an upper inlet) communicating with the upper ends of a plurality of pressure relief ventilation devices 12 (for example, bypass and cross-wind pressure relief devices 12) are provided in the upper space of the casing. wind beams, louvers or air inlet pipes, etc.), such as multiple upper air inlet beams N. Preferably, the bypass cross-wind pressure relief device 12 includes a bypass air duct 1201, a rotating shaft 1202, a windshield 1203, a roller 1204 and a horizontal ring, but there is a downwardly concave deformed track 1205 in the discharge section 1a (referred to as shaped track). Preferably, the upper air inlet beam N or air inlet pipe N has a circular, oval, circular or polygonal (eg triangular, quadrilateral or pentagonal) cross-section. Preferably, there are side (inclined) through holes (N1) on two or more sides of the upper air inlet beam N or air inlet pipe N and downward through holes (N2) on the bottom side . That is, the side through hole N1 is inclined downward, and the through hole N2 is downward.

Preferably, the two ends of the air inlet device (N) arranged in the upper space of the box body are respectively arranged or fixed on the inner ring wall (2) and the outer ring wall (3). Generally, the air inlet device (N) can be installed horizontally or obliquely.

Under normal conditions, the rollers 1204 are running horizontally, and air is tightly bound between the windshield 1203 and the bypass air duct 1201 and cannot enter. When passing through the unloading area, due to the influence of the downward depression of the special-shaped track 1205, the roller 1204 walks downwards and pulls the windshield 1203 at the same time, so that one end of the windshield 1203 rotates with the rotation shaft 1202 as the center of the circle so as to be in line with the side. The ventilation pipe 1201 is separated, that is, it is in an open state. At this time, the air in the annular air inlet chamber 11 can enter the bypass ventilation pipe 1201 and thus enter the air inlet beam N located at the upper part of the material column of the slot cooler. The advantage of this is that a pressure relief is formed in the unloading area, so that the air pressure in this area is not as high as that in other areas, thereby reducing the possibility of air passing through the buried material seal. Lowering the height of the buried seal provides assistance.

Preferably, a plurality of brackets or pillars 24 are erected on both sides of the annular groove-shaped stacking box of the cooling device 1 . Limiting retaining wheels 13 are provided on both sides of the upper part of the annular groove-shaped stacking box of the cooling device 1 . Wherein the stop wheel 13 is fixed on a support or a pillar 24 .

The device 1 also includes: 9) a tank cooler top cover 25 installed on the top of the tank cooler 1 . During installation, it is first hoisted to a certain position by the hoisting port, and then moved to the designated position for production by means of the top cover installation roller 26. move. The top cover 25 of the tank cooler is supported by the top cover installation rollers 26 mounted on the brackets or pillars 24 .

The present application also provides a sinter cooling method using the above-mentioned trough-type liquid-sealed blast cooling device 1, which method includes: 1) the cooling device 1 performs (full circle) rotary motion under the drive of the wheel-rail driving device 5; In the discharge section 1a, the iron ore material M is scraped off from the discharge opening at the bottom of the cooling device 1 box by means of the scraper device 6 for discharge (for example, scraped into the discharge chute 15), 3) from the sintering The sintered ore of machine is added in the annular groove shape stacking box body from feed chute 7 (preferably, utilize material scraping sheet to level material afterwards), 4) from at least one air outlet duct that is connected with machine cover 8 top (preferably, The hot air discharged from at least two air outlet pipes) is transported to the waste heat boiler 19 of the power generation equipment through the pipe 28.

Preferably, step 4) includes the following sub-steps: 4.1) The hot air G1 discharged from the first air outlet pipe 21 is transported to the waste heat boiler 19 of the power generation equipment through the pipe 28, 4.2) the lower temperature hot air discharged from the second air outlet pipe 22 G2, when the temperature of G2 is high enough (that is, enough for the waste heat boiler of the power generation equipment), it is sent to the waste heat boiler 19 of the power generation device through the pipeline 28, or when the temperature of G2 is low, it is sent to the blower 9 through the bypass 31 Inlet.

In the above method, preferably, the hot air G1 and/or G2 are sent to the waste heat boiler 19 of the power generation equipment after the dust is removed by the gravity dedusting equipment 18 respectively.

Preferably, the low-temperature air G3 discharged from the waste heat boiler 19 passes through the bag filter 20 to further remove dust, and then is transported to the air inlets of each blower 9 after further waste heat utilization through the economizer 23 or without passing through the economizer 23 . In this way, the wind flow closed loop is realized. Because the invention adopts a closed air blowing process, it can realize the closed loop of wind flow. This technology adds a bag filter 20 and an economizer 23 (open or close depending on the situation) at the back of the original process, and recycles the air after leaving the waste heat boiler after fine particle dust removal and blows it into the annular air inlet chamber 11 for cooling. wind. Realize no sensible heat waste and no atmospheric emission of particulate matter in the whole process.

In operation, the tank rotates along the rotation circumference (or rotation circumference) of the tank cooler 1 , as shown in FIG. 2 . The circumference of revolution (2πR) of the box is generally 60-350 meters, preferably 70-320 meters, preferably 90-280 meters, more preferably 120-250 meters, such as 150-200 meters.

The height of the box body of the tank-type liquid-sealed blast cooling device for sinter is 1.5-7.0 meters, preferably 2.5-6.5 meters, preferably 3.5-6 meters, more preferably 4-5.5 meters, more preferably 4.5-5.0 meters.

Compared with the traditional annular cooler technology and disk cooler technology, there are mainly the following five changes:

A1. Adopt a new type of airtight air blast to replace the previous air extraction: the present invention cancels the air extraction process and replaces it with an annular airtight chamber air blast air intake process, which is formed by adding a sealing cover 11a on the outer ring of the sintered material accumulation at the lower part of the outer periphery of the slot cooler There is a circle of airtight annular air inlet chamber 11, and the upper and lower sides of the air inlet chamber are provided with liquid sealing devices 14, so that a sealing effect is formed between the inner ring wall 2 and the outer ring wall 3 of the rotating tank refrigerator casing. The air is blown out from the blower 9, and enters the airtight annular air inlet chamber 11 after passing through the air inlet pipe 10. Since the top and bottom are sealed, the air can only enter the bottom of the material layer from the bearing plate 401 of the tray 4 through the annular air distribution chamber 402. It travels upwards in the material layer and finally blows out from the material surface.

A2. Buried material seal is adopted: Since the present invention changes draft to blast, the main position to prevent cross-wind is changed from the upper part of the material layer to the lower part of the material layer. The present invention adopts the mode that the discharge chute 15 is buried in the ground as a whole at the discharge port. Partially excavate pits on the civil engineering plane, and bury the unloading chute 15, so that the overall height of the entire trough cooler will not be raised, nor will excessive civil engineering foundation excavation costs be increased.

A3. Adding a bypass air pressure relief device: In order to further reduce the height of the buried material seal and reduce the construction and installation costs. In the present invention, a bypass cross-wind pressure relief device 12 is added to the tank cooler. The device is composed of a bypass air pipe 1201, a rotating shaft 1202, a wind shield 1203, a roller 1204 and a special-shaped track 1205. Under normal conditions, the rollers 1204 are running horizontally, and air is tightly bound between the windshield 1203 and the bypass air duct 1201 and cannot enter. When passing through the unloading area, due to the influence of the downward depression of the special-shaped track 1205 in the unloading section, the roller 1204 moves downward and pulls the windshield 1203 at the same time, so that one end of the windshield 1203 is centered on the rotating shaft 1202 Rotate so as to be separated from the bypass air pipe 1201. At this time, the air in the annular air inlet chamber 11 can enter the bypass air pipe 1201 and thus enter the air inlet beam N on the upper part of the material column of the slot cooler. The advantage of this is that a pressure relief is formed in the unloading area, so that the air pressure in this area is not as high as that in other areas, thereby reducing the possibility of air passing through the buried material seal. Reduce the height of the buried material seal to help;

A4. Adopt closed-circuit circulation of wind flow: Since the invention adopts a closed-type blowing process, closed-circuit circulation of wind flow can be realized. This technology adds a bag filter 19 and an economizer 23 (open or close depending on the situation) at the back of the original process, and recycles the air after leaving the waste heat boiler through fine particle dust removal and blows it into the annular air inlet chamber 11 to serve as cooling wind. Realize no sensible heat waste and no atmospheric emission of particulate matter in the whole process.

A5. Add multi-element air extraction device: the present invention improves on the original air outlet device, and sets multi-element air acquisition device, the user can freely adjust the air temperature entering the waste heat boiler according to the air temperature of different sections of the air outlet caused by different sinter characteristics The air volume to ensure that the thermal efficiency of the boiler is maintained in a high range. As shown in FIG. 3 , in the present invention, two air outlets are respectively provided at two positions of the tank cooler near the feed inlet section and away from the feed inlet section, namely the first air outlet pipe 21 and the second air outlet pipe 22 . Because it is close to the feed inlet section, the air temperature of the first air outlet pipe 21 is guaranteed, and because it is far away from the feed inlet section, the air temperature of the second air outlet pipe 22 will be adjusted according to the machine speed, material layer height, material There are many factors such as column air permeability, which may be high or low. If the thermocouple detects that the air temperature of the second air outlet pipe 22 is high enough at this time, the system automatically opens the second regulating valve (butterfly valve) 30 and closes the first regulating valve (butterfly valve) 29 at the same time. Combined into waste heat boiler 28. If the thermocouple detects that the air temperature of the outlet pipe 22 at this time is not enough, and if the combination of the air flow in the high temperature section will affect the thermal efficiency of the waste heat boiler, the system will automatically close the second regulating valve 30 and open the first regulating valve 29 at the same time, then the air outlet pipe The airflow in 22 directly enters the blower air inlet through the bypass, and is blended into the circuit as the cooling air of the next circulation.

The scraper device 6 is installed on the (ring) outside of the discharge area of the (ring) tank cooler, and is wrapped in the ring airtight air inlet chamber 11 by the sealing cover. The penetration depth of the scraper in the cross-sectional direction shall not exceed the inner wall of the outer ring of the tank cooler, and one or more scrapers may be set along the ring direction according to the material flow. The device has no bottom air inlet beam, and the wind is uniformly introduced into the bottom of the material bed by means of setting a bearing plate 401 and an annular air distribution chamber 402.

In general, the rotation speed of the box is 1.2-2m/s, for example, 1.5m/s, the temperature of the hot air G1 discharged from the high temperature section generally reaches 400-500°C, and the temperature of the hot air G2 in the low temperature section can reach 250-350°C °C, for example 300 °C. The length of the discharge section 1a is, for example, 8-14m, such as 10m.

Claims (34)

1. being sintered mining slot type liquid sealing blast cooling device (1), which includes:

1) accumulate the sinter from sintering machine from top, while the ring groove shape of peripheral part annular discharge port discharge from below Cabinet is accumulated, wherein the cabinet includes the whole ring shape pallet (4) of internal ring wall (2), external annulus (3) and bottom；

2) for driving above-mentioned ring groove shape accumulation cabinet to make the wheel rail drive device (5) of rotary motion in the horizontal direction；

3) the cyclic annular hood (8) on top be arranged on above-mentioned ring groove shape accumulation cabinet, the above-mentioned accumulation cabinet of covering；

4) 1-10 wind pipe being connect with above-mentioned hood (8) top；

5) it is being burnt by being sealed and seal closure (11a) is added along the periphery of cabinet in blast cooling device (1) lower part in slot type liquid Ramming material accumulation outer ring is formed by the closed annular inlet air plenum (11) of a circle,

6) sealing device (14) being equipped in inlet air plenum upper and lower part accumulates the ring groove shape of sealing device (14) and rotation Sealing function is formed between the internal ring wall (2) and external annulus (3) of cabinet；

7) multiple air blowers (9), their air outlet pass through respectively corresponding blast pipe (10) be connected to it is closed annular into Air compartment (11)；With

8) one or more cutting devices (6) in the outside of the discharging section (1a) of cooling device (1) are installed on, the latter is sealed Cover (11a) is surrounded in annular closed inlet air plenum (11),

Wherein: the scraper of cutting device (6) does not protrude into the base circle discharge port of cabinet, that is, the scraper of cutting device (6) exists The cross-sectional direction of cabinet protrudes into depth using external annulus (3) inner wall no more than cooling device (1) as standard, or, scraper The scraper of equipment (6) protrudes into the base circle discharge port of cabinet；

The wherein annular air compartment (402) that pallet (4) has force bearing disk (401) and is located above force bearing disk (401).

2. the apparatus according to claim 1, it is characterised in that: be connected with 2-6 wind pipe at the top of hood (8)；Have to It is connect at the top of few two wind pipes and above-mentioned hood (8), wherein at least two wind pipes (21,22) include close Second air outlet pipeline (22) of the first air outlet pipeline (21) of cabinet unloading part (1a) and separate cabinet unloading part (1a)；Ring Right angled triangle or similar right angled triangle is presented in the cross section of shape air compartment (402).

3. the apparatus of claim 2, it is characterised in that: be connected with 3-4 wind pipe at the top of hood (8)；Triangle Three sides of shape are force bearing disk (401), internal ring wall (2) and air inlet inclined plate (403) respectively.

4. device according to claim 3, it is characterised in that: have upper and lower spaced many on air inlet inclined plate (403) Parallel platelet (404).

5. device described in any one of -4 according to claim 1, wherein being equipped with wheel rail drive device in the bottom of pallet (4) (5)。

6. device according to claim 5, wherein wheel rail drive device (5) includes: idler wheel (501), it is mounted on pallet (4) At least two of bottom or at least a pair of guide rails (502), motor (503), shaft coupling (504), retarder (505), shaft (506) and support (507).

7. device described in any one of -4,6 according to claim 1, wherein in the discharging section (1a) of cooling device (1) It is interior, feed chute (7) are installed above ring groove shape accumulation cabinet.

8. device according to claim 5, wherein being accumulated in the discharging section (1a) of cooling device (1) in ring groove shape Feed chute (7) are installed above cabinet.

9. device according to claim 7, wherein being equipped with material scraper plain film in the downstream of feed chute (7).

10. device according to claim 8, wherein being equipped with material scraper plain film in the downstream of feed chute (7).

11. the device according to any one of claim 2-4, wherein the first air outlet pipeline (21) is connected to power generation The waste heat boiler (19) of equipment, and the second air outlet pipeline (22) is connected to generating equipment via pipeline (28) in a manner of changeable Waste heat boiler (19) or the air inlets of air blower (9) is directly connected to via bypass (31).

12. device according to claim 11, wherein gravitational dust collection equipment is arranged in the gas circuit upstream of waste heat boiler (19) (18)。

13. device according to claim 12, wherein set gradually bag-type dust in the gas circuit downstream of waste heat boiler (19) Device (20) and optional economizer (23).

14. device according to claim 13, wherein the air outlet of bag filter (20) or economizer (23) is connected to The air inlet of each air blower (9).

15. device according to claim 7, wherein one or more of cutting devices (6) are arranged in discharging section The upstream of (1a), and feed chute (7) is located at the downstream of discharging section (1a)；Wherein, at the discharge port of discharging section (1a) Feeding chute (15) and electromagnetic vibration feeder (16) are set.

16. the device according to any one of claim 8-10, wherein one or more of cutting devices (6) are arranged In the upstream of discharging section (1a), and feed chute (7) is located at the downstream of discharging section (1a)；Wherein, at discharging section (1a) Discharge port at feeding chute (15) and electromagnetic vibration feeder (16) are set.

17. device according to claim 15, wherein feeding chute (15) is integrally embedded to ground.

18. device according to claim 16, wherein feeding chute (15) is integrally embedded to ground.

19. according to claim 1-4,6, device described in any one of 8-10,12-15,17-18, wherein in external annulus (3) Outside be equipped with multiple pressure release ventilation devices (12).

20. device according to claim 5, wherein being equipped with multiple pressure release ventilation devices in the outside of external annulus (3) (12)。

21. device according to claim 7, wherein being equipped with multiple pressure release ventilation devices in the outside of external annulus (3) (12)。

22. device according to claim 11, wherein being equipped with multiple pressure release ventilation devices in the outside of external annulus (3) (12)。

23. device according to claim 19, wherein one end of pressure release ventilation device (12) is connected to closed circular air inlet Room (11), the other end are connected to cabinet external environment or the air intake equipment being connected within cabinet upper space (N).

24. the device according to any one of claim 20-22, wherein one end of pressure release ventilation device (12) is connected to close Closed-loop shaped inlet air plenum (11), the air inlet that the other end is connected to cabinet external environment or is connected within cabinet upper space are set Standby (N).

25. device according to claim 23, wherein the air intake equipment (N) is air inlet beam, shutter or blast pipe.

26. device according to claim 24, wherein the air intake equipment (N) is air inlet beam, shutter or blast pipe.

27. device according to claim 19, wherein pressure release ventilation device (12) includes bypass air hose (1201), rotation axis (1202), plate (1203), idler wheel (1204) and the horizontal annular of becalming but the rail deformed in the oriented lower recess formula of discharging section (1a) Road (1205).

28. the device according to any one of claim 20-23,25-26, wherein pressure release ventilation device (12) includes bypass Air hose (1201), rotation axis (1202), plate of becalming (1203), idler wheel (1204) and horizontal annular but have in discharging section (1a) The track (1205) of downward depressed deformation.

29. device according to claim 24, wherein pressure release ventilation device (12) includes bypass air hose (1201), rotation axis (1202), plate (1203), idler wheel (1204) and the horizontal annular of becalming but the rail deformed in the oriented lower recess formula of discharging section (1a) Road (1205).

30. the device according to claim 25 or 26, wherein the air inlet beam or blast pipe on top have round, ellipse, The cross section of annular or polygon.

31. device according to claim 30, wherein on the air inlet beam on top or two or more sides of blast pipe It is provided with side through-hole (N1) and is provided on bottom side to lower through-hole (N2).

32. using the burning of mining slot type liquid sealing blast cooling device (1) of sintering described in any one of claim 1-31 Mine cooling means is tied, this method comprises: 1) cooling device (1) does rotary motion under the driving of wheel rail drive device (5), 2) Iron ore material (M) is scraped from the discharge port of the bottom of cooling device (1) cabinet by means of cutting device (6) in unloading part (1a) Under to carry out discharging, 3) sinter from sintering machine is added in ring groove shape accumulation cabinet from feed chute (7), 4) Cong Yuji The hot wind of at least one wind pipe discharge connected at the top of cover (8) is delivered to the waste heat boiler of generating equipment via pipeline (28) (19)；

Wherein step 4) includes following sub-step: 4.1) the hot wind G1 being discharged from the first air outlet pipeline (21) is via pipeline (28) Be delivered to the waste heat boiler (19) of generating equipment, 4.2) the lower temperature hot wind G2 being discharged from the second air outlet pipeline (22), when When G2 temperature is sufficiently high, the waste heat boiler (19) of generating equipment is delivered to via pipeline (28), or when G2 temperature is relatively low, via Bypass (31) is delivered to the air inlet of air blower (9).

33. according to the method for claim 32, wherein hot wind G1 and/or G2 are removed via gravitational dust collection equipment (18) respectively The waste heat boiler (19) of generating equipment is transported to after dust.

34. the method according to claim 32 or 33, wherein the low temperature wind G3 being discharged from waste heat boiler (19) is through cloth bag Deduster (20) further removes dust, then via after economizer (23) further UTILIZATION OF VESIDUAL HEAT IN or not via economizer (23) air inlet of each air blower (9) is transported in the case where.