CN207716881U - A kind of vertical sinter cooler of lattice - Google Patents

Abstract

A compartmentalized vertical sinter cooler, the compartmentalized vertical cooler (A1) includes a silo (1), a tower body (2), a compartmental frame (3), an air inlet device (4), a discharge Cone bucket (5) and hot air outlet (9), wherein: the silo (1) is arranged directly above the tower body (2), the sub-grid (3) is arranged in the tower body (2) and is located in the tower body (2) ), the air inlet device (4) is arranged at the bottom of the tower body (2), and the discharge cone (5) is arranged below the tower body (2); The lower part is divided into multiple independent spaces; the hot air outlet (9) is arranged on the upper part or the top of the tower body (2). The utility model divides the tower of the vertical cooling machine into several areas to ensure the uniformity of air flow and material flow, adopts countercurrent heat exchange, and greatly improves the recovery rate of waste heat.

Description

A compartmental vertical sinter cooler

technical field

The utility model relates to a sintered ore cooler and a sintered ore cooling method, in particular to a compartmentalized vertical sintered ore cooler and a sintered ore cooling method, which belong 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 breaks down, all the material dust pushed around the plate cooler will enter the atmosphere, causing extremely bad influence 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.

At present, the sinter cooling mainly adopts the traditional belt cooler or ring cooler based on the principle of high wind quick cooling and one-time loading and unloading cooling. The sinter coolers of the prior art generally have the following problems: 1. Serious air leakage and high power consumption. The three cooling methods are to place the sinter on the trolley, and cool the sinter by blowing or drawing air. The seal between the trolley and the bellows is difficult to solve. Generally, the air leakage rate is more than 20%, or even as high as 50%. Increased cooling power consumption; 2. Insufficient heat exchange. Cross-flow heat exchange between sinter and cooling air in belt cooler or ring cooler, the heat transfer effect is poor; the accumulation height of sinter material layer is low, the heat exchange time between sinter and cooling air is short, and the heat exchange is insufficient; 3. Waste heat utilization efficiency is low. Because the two ends of the cooler cannot be sealed, a large amount of wild wind infiltrates. Since the wild wind does not pass through the sintered material layer, it not only increases the power and power consumption of the fan, but also greatly reduces the temperature of the flue gas after heat exchange; the existing In the sintering machine waste heat power generation system, the air is generally taken from the high-temperature sections I and II of the belt cooler or ring cooler. The temperature difference between the sintering ore and the cooling air heat exchange end is large, the flue gas temperature is low, and the loss of working capacity is large. The waste heat utilization rate is low; 4. The waste heat parameters fluctuate greatly. The output, temperature, and composition of sinter fluctuate greatly during the production process, which leads to large fluctuations in flue gas parameters after heat exchange, which has a great impact on waste heat utilization; 5. Whether it is a belt cooler or an annular cooler , are bulky, high investment, high energy consumption, heavy equipment maintenance workload, long project investment recovery period.

Therefore, it is the only way for the sinter industry to save energy and protect the environment by breaking through the limitations of traditional ring cooling or belt cooling and developing a process and technical equipment for efficient recovery of sinter sensible heat.

Utility model content

The utility model designs a subdivided vertical sintering cooler, which is completely static, has no moving parts, and basically has no air leakage, and adopts countercurrent heat exchange, which greatly improves waste heat recovery. The feature is that the vertical tower is divided into several areas to ensure the uniformity of air flow and material flow.

According to the first embodiment provided by the utility model, a compartmentalized vertical sinter cooler is provided.

A compartmentalized vertical sinter cooler includes a feed bin, a tower body, a compartmental frame, an air inlet device, a material discharge cone and a hot air outlet. Among them: the silo is set directly above the tower body. The sub-grid is arranged in the tower body and is located at the lower part of the tower body. The air inlet device is arranged at the bottom of the tower body. The discharge cone bucket is arranged below the tower body. The grid divides the lower part of the tower body into multiple independent spaces. The hot air outlet is arranged on the upper part or the top of the tower body.

Preferably, the subdivided vertical cooler also includes a material height adjusting device. The end of the silo is provided with a straight pipe. The material height adjustment device is set on the straight pipe.

Preferably, a first radiant heat recovery device is arranged in the tower body and close to the top cover of the tower body. Preferably, a second radiant heat recovery device is arranged at the front end of the hot air outlet.

Preferably, the first radiant heat recoverer located at the top of the tower adopts a fan-shaped hollow plate. Preferably, the second radiant heat recovery unit adopts a plate-fin heat exchanger or a tube-and-tube heat exchanger.

Preferably, a discharge device or a plate feeder is provided below the discharge cone.

In the utility model, the air inlet device includes a wind cap, an air supply duct, and a fan. Wherein, the hood is arranged in the tower body. The fan is arranged outside the tower body. The air supply duct is connected with the hood and the blower fan.

Preferably, the tower body is square. The grid divides the lower part of the tower body into 2-24 independent spaces, preferably 4-20, more preferably 6-16, more preferably 8-12.

Preferably, a hood is provided at the bottom of each independent space. A plurality of wind caps are connected with a fan after being connected in series through the air supply pipe. Or each wind cap is connected with a blower fan through the air supply duct.

Preferably, a discharge cone is provided below each independent space.

Preferably, an insulation layer is provided on the inner side of the lower part of the tower body and the inner side of the discharge cone.

In the utility model, the wind cap includes a support frame, a top cover of the wind cap, a plurality of tapered cover plates and a wind cap air duct. Wherein: a plurality of conical cover plates are sequentially arranged on the supporting frame. From top to bottom, the diameter of the bottom of the conical cover increases sequentially. The hood top cover is arranged above the topmost conical cover plate, and the hood air duct is arranged below the support frame and connected with the support frame.

Preferably, an air flow channel is formed between the adjacent conical cover plates.

Preferably, the number of airflow channels is 2-200, preferably 5-100, more preferably 8-50.

More preferably, the top cover of the hood is a tapered structure.

In the present utility model, the included angle of the top cover of the wind cap is larger than the cone angle of the conical cover plate.

In the present invention, the number of the conical cover plates is 4-80, preferably 6-70, preferably 8-50, more preferably 12-40, for example 18, 20 or 25.

In the present invention, the gap of the airflow channel is 3-100mm, preferably 5-80mm, more preferably 7-50mm, such as 15, 20, 25, 30mm.

In the present utility model, the cone angle of the top cover of the hood is 20-150 degrees, preferably 30-120 degrees, more preferably 40-90 degrees.

In the present utility model, the cone angle of the conical cover plate is 20-150 degrees, preferably 30-120 degrees, more preferably 40-90 degrees.

Preferably, the top cover of the hood is a wear-resistant top cover made of wear-resistant steel; the tapered cover plate is a wear-resistant conical cover made of wear-resistant steel.

Preferably, the lower part of the discharge cone is provided with an adjusting rod.

Preferably, the tops of adjacent discharge cones are connected to each other, and the lower parts of adjacent discharge cones are separated.

Preferably, the upper part of the discharge cone is provided with a temperature measuring probe.

In the utility model, the discharge equipment is a double-layer vibrating feeder. The double-layer vibrating feeder includes a body support, an upper vibrating tank, a lower vibrating tank, and a vibrator. The upper layer vibration groove and the lower layer vibration groove are arranged on the body support. The upper layer vibration tank is located above the lower layer vibration tank. The upper layer vibration groove and the lower layer vibration groove are respectively connected with the vibrator.

Preferably, an adjustment device is provided on the upper layer vibration tank and/or the lower layer vibration tank. The adjusting device adjusts the inclination angle of the bottom plate of the upper layer vibration tank and/or the lower layer vibration tank.

Preferably, the vibrator includes an upper vibrator and a lower vibrator. The upper vibrator is connected with the upper vibrating tank. The lower vibrator is connected with the lower vibration tank.

Preferably, the upper vibrating tank and the lower vibrating tank are arranged on the frame of the body through springs.

Preferably, the subdivided vertical cooler also includes a control system. The control system is connected with the material height adjustment device, the first radiant heat recovery device, the second radiant heat recovery device, the air inlet device, the discharge cone, the temperature measuring probe, the adjustment rod, the discharge device, and the plate feeder, and controls the Operation of material height adjustment device, first radiant heat recovery device, second radiant heat recovery device, air intake device, discharge cone, temperature measuring probe, adjustment rod, discharge equipment, and plate feeder.

In the present invention, the length of the straight pipe is 0.5-3 meters, preferably 0.5-2.5 meters, more preferably 1-2 meters.

In the present invention, the subdivided vertical cooling machine also includes: a support, a gear bracket, a driven wheel, and a chain. Wherein: the outer side of the material height adjustment device is provided with a support. A gear bracket is arranged on the top cover of the tower body. A driven wheel is arranged on the gear bracket. One end of the chain is connected to the support, and the other end of the chain passes through the top cover of the tower body and is connected with the driven wheel.

Preferably, a transmission gear is also provided on the gear bracket, and the transmission gear and the driven wheel are mated and connected.

In the utility model, the transmission gear is a transmission gear reducer.

Preferably, the transmission gear is connected with the manual rocker or the motor, and the manual rocker or the motor drives the transmission gear.

More preferably, a backstop is provided on the transmission gear.

In the present invention, the compartmentalized vertical cooling machine also includes: steel pipes. One end of the steel pipe is connected to the support, and the other end of the steel pipe passes through the top cover of the tower body to connect to the chain. The other end of the chain is connected with the driven wheel.

Preferably, the steel pipe protrudes from the top cover of the tower body. The length of the steel pipe protruding from the top cover of the tower body is 0.1-1 meter, preferably 0.2-0.7 meter, more preferably 0.3-0.5 meter.

In the present invention, the number of supports is 2-10, preferably 3-8, more preferably 4-6. A gear bracket is arranged directly 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 utility model, one end of each steel pipe is connected to the support. The other end of the steel pipe is connected to the chain, and the other end of the chain is connected to the driven wheel.

Preferably, a plurality of supports are arranged symmetrically on the outside of the material height adjusting device.

In the utility model, the subdivided vertical cooling machine also includes: a support, a chain, a gourd bracket, and a gourd. Wherein: the outer side of the material height adjustment device is provided with a support. The top cover of the tower body is provided with a gourd bracket. The gourd is arranged on the gourd support. One end of the chain is connected to the support, and the other end of the chain passes through the top cover of the tower body and is connected with the hook of the gourd.

Preferably, the compartmental vertical cooler further includes: steel pipes. Replace chains with steel pipes. One end of the steel pipe is connected to the support, and the other end of the steel pipe passes through the top cover of the tower body and is connected with the hook of the gourd.

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

Preferably, the steel pipe protrudes from the top cover of the tower body. The length of the steel pipe protruding from the top cover of the tower body is 0.1-1.5 meters, preferably 0.2-1.2 meters, more preferably 0.3-1 meters.

In the present invention, the number of supports is 2-10, preferably 3-8, more preferably 4-6. A gourd support is arranged directly above each support. Each gourd bracket is provided with a gourd. One end of each chain is connected to the support, and the other end of the chain is connected to the gourd.

In the utility model, one end of each steel pipe is connected to the support, and the other end of the steel pipe is connected to the gourd.

Preferably, a plurality of supports are arranged symmetrically on the outside of the material height adjusting device.

In the utility model, the subdivided vertical cooling machine also includes: a support, a steel pipe, and a lifting device. Wherein: the outer side of the material height adjustment device is provided with a support. The top cover of the tower body is provided with a lifting device, one end of the steel pipe is connected to the support, and the other end of the steel pipe passes through the top cover of the tower body to connect with the lifting device.

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

Preferably, a plurality of supports are arranged symmetrically on the outside of the material height adjusting device.

In the utility model, a plurality of lifting devices are connected with the lifting motor through connecting rods and transmission boxes.

Preferably, a counter is also included. The counter is connected with the lifting motor.

More preferably, the lifting device is a screw lift.

In the present utility model, there is no special requirement for the first radiant heat recoverer installed on the top of the inner space of the tower (that is, below the top cover of the tower), for example, a hollow plate with a fan-shaped surface is used to pass through the inner space of the tower. The top is assembled to form a ring-shaped radiant heat recovery device.

The first radiant heat recovery device is connected with the first heat recovery pipeline, which stores high-temperature steam and further transports it to the waste heat power generation system. The second radiant heat recovery device is connected to the second heat recovery pipeline, which stores high-temperature steam and is further transported to the waste heat power generation system.

In the present utility model, both the first radiant heat recovery device and the second radiant heat recovery device include a water inlet of the radiant heat recovery device and a steam outlet of the radiant heat recovery device.

According to the second embodiment of the utility model, a sinter cooling method is provided.

A method for cooling sinter or a method for cooling sinter with a gridded vertical sinter cooler according to the first embodiment, the method includes the following steps:

(1) The sintered ore enters the silo of the sub-grid vertical cooler, and flows continuously from top to bottom under the action of gravity; when the material is free to accumulate, it is filled around the lower port of the material height adjustment device, and the material height The adjustment device moves up and down to realize the material height change;

(2) The air inlet device of the sub-compartment vertical cooler transports cooling gas (such as air) into the tower body through the wind cap, and the cooling gas passes through the sinter accumulated in each independent space in the sub-compartment vertical cooler from bottom to top Material bed, and conduct countercurrent heat exchange with sinter, after the heat exchange, the temperature of cooling gas gradually rises, and is discharged through the sinter material surface in the vertical cooling tower of the grid, forming high-temperature hot air, and the high-temperature hot air is discharged through the hot air outlet; the preferred Yes, high temperature hot air is delivered to the waste heat utilization system;

(3) The sinter accumulated in the tower body of the vertical cooling machine is cooled by countercurrent heat exchange with the cooling gas from bottom to top, and enters the discharge cone at the lower part of the vertical cooling machine, and then Discharged by discharge equipment or apron feeder;

(4) The first radiant heat recovery device recovers the radiant heat energy of the sinter to generate high-temperature water vapor, and the water vapor enters the waste heat power generation system.

Preferably, the second radiant heat recovery device recovers radiant heat energy of the sinter to generate high-temperature water vapor, and the water vapor enters the waste heat power generation system.

Preferably, according to the temperature detected by the temperature measuring probe, the control system controls the material height adjustment device, the first radiant heat recoverer, the second radiant heat recoverer, the air inlet device, the discharge cone, the adjustment rod, and the discharge equipment , The operation of the plate feeder.

Preferably, a temperature measuring probe is set corresponding to each discharge cone, and the control system controls the operation of the corresponding discharge equipment or apron feeder according to the temperature detected by each temperature measuring probe.

The grid vertical cooler also has a self-feedback discharge adjustment function. The sinter temperature in the corresponding area is detected by the temperature measuring probe, and when the detected sinter temperature at a certain position in the circumferential direction reaches the cooling effect, the discharge device (or plate feeder) under the discharge cone corresponding to the area is normally opened. Mining machine), carry out normal discharge, otherwise, reduce the discharge speed of the discharge equipment (or apron feeder) accordingly or close the discharge equipment (or apron feeder), let the sinter in this area cool down again After a period of time, when the sinter temperature reaches the cooling effect, the normal discharge will be carried out. At the same time, the discharge speed can also be adjusted by adjusting the depth of the adjusting rod inserted into the material layer.

In the present utility model, generally speaking, the grid vertical cooler is mainly composed of a silo, a straight pipe, a material height adjustment device, a tower body, a grid frame, an air inlet device, a discharge cone, and a discharge device ( or plate feeder) and hot air outlet. The silo, straight pipe and material height adjustment device form a uniform feeding system. After the hot sintered ore enters the silo, it enters the straight pipe under the action of gravity, and then flows out from the straight pipe, and fills around at the lower port of the material height adjustment device. Then it is naturally accumulated in multiple independent spaces divided by the sub-frame inside the tower body; the cooling air is evenly blown into the air supply duct through the fan of the air inlet device, and then evenly blown into the bottom of each independent space through the air supply duct The sinter is blown evenly into the sinter accumulated in the tower body through the hood to cool the sinter; the cooled sinter flows into the discharge cone under the action of gravity, and there is a discharge cone under each independent space. The material cone ensures that the sintered ore passing through the discharge cone can flow down evenly; there is a discharge device (or plate feeder) connected to the bottom of each discharge cone, through which the discharge device (or plate feeder) feeder) can control the discharge speed of each discharge cone. After the cooling air entering the tower body undergoes heat exchange with the hot sinter, it cools the hot sinter to below 150°C, and itself is heated to a higher temperature to become hot air. The hot air passes through the material layer and then passes through the material layer at the top It enters the material-free area at the upper end of the tower body, and then is discharged through the hot air outlet and enters the subsequent waste heat power generation system.

Preferably, several temperature measuring probes are evenly arranged along the circumferential direction at the lower part of the tower wall, and the temperature measuring probes may be thermocouple temperature sensors. When the detected sinter temperature at a certain position in the circumferential direction reaches the cooling effect, the discharge equipment or discharge outlet under the discharge cone corresponding to the area is normally opened to carry out normal discharge, otherwise, the corresponding reduction Increase the discharge speed of the discharge equipment or close the discharge equipment, let the sinter in this area cool down for a period of time, and when the temperature of the sinter reaches the cooling effect, the normal discharge is carried out.

Preferably, the discharge cone can function as a material seal. Preferably, the upper ends of the discharge cones and the adjacent discharge cones are connected together, and then separated downwards into several structures.

The hot sinter crushed by the single-roller crusher is transported to the top of the vertical cooler by the hot sinter conveying device, and then enters into the bin of the vertical cooler. The sinter flows continuously from top to bottom under the action of gravity, and enters In the compartment at the lower part of the cooler, countercurrent heat exchange is carried out with the cooling air from bottom to top in the machine. After the sinter temperature is cooled to below 150°C, it passes through the discharge cone at the lower part of the vertical cooler, and then is discharged by the discharge equipment. It is discharged to the cold sinter conveyor, and then the cooled sinter is transported to the next process by the cold sinter conveyor.

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

Preferably, the equipment also has a self-feedback discharge adjustment function. The temperature of the sinter in the corresponding area is detected by the temperature measuring probe. When the temperature of the detected sinter in a certain position in the circumferential direction reaches the cooling effect, the discharge equipment under the discharge cone corresponding to the area is normally opened for normal discharge. On the contrary, reduce the discharge speed of the discharge equipment or close the discharge equipment accordingly, let the sinter in this area cool down for a period of time, when the sinter temperature reaches the cooling effect, the normal discharge is carried out. At the same time, the discharge speed can also be adjusted by adjusting the insertion depth of the adjusting rod.

The cooling air cap of the utility model is mainly composed of an air cap top cover, a plurality of tapered cover plates ranging from small to large, a support frame and an air cap air duct. Among them, the top cover of the wind cap is a conical structure, which is mainly used to protect the conical cover plate located below it; Smaller than the cone angle of the top cover, an air flow channel is formed between adjacent conical cover plates, and the cooling gas can flow out from the air flow channel to cool the sinter in the vertical cooler; the main function of the support frame is to support the top cover of the wear-resistant wind cap And the conical cover plate, the top cover of the hood and the conical cover plate are fixed on the support frame; the air duct of the hood is located at the lower end of the support frame, one end of the air duct of the hood is connected to the cooling air, and the other end is connected to the support frame, and the cooling air through the air duct of the hood The wind can directly enter into the hood, and then be supplied to the outside through the airflow channel between the conical cover plates.

In the utility model, the support frame is a cone-shaped frame, and the support frame can be ventilated, that is to say, the upper surface (conical surface) of the support frame is provided with pores, and the cooling wind can pass through the support frame freely. The supporting frame is used for supporting the top cover of the hood, the tapered cover plate and for connecting the air duct of the hood.

In the utility model, the top cover of the air cap is a conical structure, which is arranged on the top of the support frame and above the top conical cover plate to protect the cooling air cap and avoid damage to the cooling air cap due to the falling of the sintered ore material.

In the utility model, the conical cover plate is the middle section (one circle) of the conical structure, the upper and lower (top and bottom) of the conical cover plate are open, the side walls are inclined, and the cooling air can flow from The lower part of the conical cover freely passes through the upper part. In the conical cover plate of the utility model, the diameter of the bottom of the conical cover plate increases sequentially from top to bottom, and a plurality of conical cover plates are accumulated and arranged together to form a cooling air cap device with an overall conical structure. The top of the uppermost conical cover plate is covered by the hood top cover.

In the utility model, an air flow channel is formed between adjacent conical cover plates, and pads (steel welding) and other forms can be arranged between adjacent conical cover plates, so that an air flow channel is formed between adjacent conical cover plates , the cooling air can enter the cooling machine smoothly from the airflow channel. The bottom of the last conical cover plate and the top of the next conical cover plate intersect each other (there are overlapped parts), so as to prevent the sintered ore from entering the inside of the cooling air cap from the air flow channel.

In the utility model, the height of the cooling air cap is not limited, and it depends on the scale of the cooling machine and the reagent conditions of the sintered ore. Generally, the cooling cap has a height of 30-500 cm, preferably 50-300 cm, more preferably 80-200 cm.

In the utility model, the number of conical cover plates is set according to the needs of the actual process. The higher the height of the cooling air cap, the more the number of conical cover plates; the lower the height of the cooling air cap, the more conical cover plates. The fewer the number.

In the present invention, the gap of the air flow channel is not limited, as long as the cooling air can be ensured to enter the cooling machine smoothly. Generally, the larger the air volume required by the cooling machine, the larger the gap of the airflow channel.

In the utility model, the cone angle of the top cover of the wind cap and the cone angle of the conical cover plate are not limited. In actual use, if the cone angle of the top cover and the cone angle of the conical cover plate are too small, the cone surface of the cooling air outlet will decrease, and the air volume will also decrease; if the cone angle of the top cover of the hood and the conical cover If the cone angle of the plate is too large, the sinter may stay on the cone surface of the cooling air cap, which will affect the cooling air entering the cooler and the normal flow of the sinter. Generally, the cone angle of the top cover of the hood and the cone angle of the conical cover plate are 20-150 degrees, preferably 30-120 degrees, more preferably 40-90 degrees. The cone angle of the wind cap top cover is larger than that of the conical cover plate in order to better protect the conical cover plate.

The vibrating conveyor is mainly composed of a vibrator, a body support, an upper vibrating tank, and a lower vibrating tank. Wherein, the vibrator is connected on the vibrating tank to make the vibrating tank vibrate, and the vibrating tank is connected on the body support with a spring, and the body support is fixed. The lower vibrating tank is located below, and the material can be vibratingly transported from the lower vibrating tank. The upper vibrating tank is located above the lower vibrating tank, and its material inlet is separated from the lower vibrating tank by a certain distance, so that the material inlets of the two vibrating tanks are arranged separately, and the material can be vibrated from the upper vibrating tank.

Among them, in order to realize that the double-layer vibrating conveyor works at two stationary conveying speeds, it is divided into a double vibrator scheme and a single vibrator scheme with different inclination angles. The double vibrator scheme is that the upper vibrating tank is connected to an upper vibrator, and the lower vibrating tank is connected to a lower vibrator. The upper vibrator and the lower vibrator can work at different vibration frequencies (or amplitudes), which can realize the upper vibrating tank It works at a different conveying speed from the lower vibrating tank. The single vibrator scheme with different inclination angles means that one vibrator is connected to two vibration troughs, and the upper vibration trough and the lower vibration trough are fixedly connected, but the inclination angles of the bottom plates of the upper and lower vibration troughs are different. Under the same vibration frequency, due to If the inclination angle of the bottom plate is not used, the upper vibrating tank and the lower vibrating tank can work at different conveying speeds.

Preferably, in the scheme of different inclination angles of the single vibrator, an adjusting device can be provided on the upper vibrating tank, and the bottom plate inclination angle of the upper vibrating tank can be adjusted through the adjusting device, so as to adapt to different conveying volumes.

The upper vibrating tank is located directly above the lower vibrating tank. The upper vibrating tank is located in the lower vibrating tank, which is a trough structure, generally consisting of a bottom plate at the bottom and side plates on both sides above the bottom plate. The length of the upper vibrating tank and the lower vibrating tank are determined according to the diameter of the outlet of the discharge cone of the vertical cooler. Assuming that the diameter of the outlet of the vertical cooler is d, the length of the upper vibrating tank is longer than that of the lower layer. The length of the vibrating tank is short d/2, the outlets of the upper vibrating tank and the lower vibrating tank are flush, the front edge of the lower vibrating tank is located below the outermost edge of the discharge cone, and the front end of the upper vibrating tank The edge is located below the center line of the discharge cone, which is realized. Half of the material discharged from the discharge cone is discharged through the upper vibration groove, and the other half is discharged through the lower vibration groove.

In the utility model, the adjusting device is to adjust the inclination angle of the bottom plate of the upper vibrating tank or the lower vibrating tank, and the inclination angle of the bottom plate refers to the angle formed between the bottom plate and the horizontal plane. The larger the inclination angle, the faster the feeding speed, and the smaller the inclination angle, the slower the feeding speed. The inclination angle of the base plate of the upper vibrating tank and the base plate inclination angle of the lower vibrating tank can be the same or different.

In the present invention, the vibration frequency and amplitude of the vibrator on the upper layer and the vibrator on the lower layer may be the same or different. The upper vibrator and the lower vibrator are respectively driven by independent motors.

The surface of the high-temperature pellet-shaped sinter is viscous, and once it cools, it sticks to each other. The equipment in the prior art often causes difficulty in discharging materials, but the gridded vertical cooler of the utility model solves this problem well. a question.

Generally, the height of the tower body is generally 5-18 meters, preferably 6-15 meters, more preferably 7-12 meters. The length of the tower body is generally 8-30 meters, preferably 9-27 meters, preferably 10-25 meters, preferably 11-22 meters, more preferably 12-20 meters. The width of the tower body is generally 8-30 meters, preferably 9-27 meters, preferably 10-25 meters, preferably 11-22 meters, more preferably 12-20 meters.

In the present application, the outer 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.

Compared with the prior art, the subdivided vertical cooling machine of the utility model has the following beneficial technical effects:

1. The sintered ore in a single large tower is divided into regions by adopting a split format. The size of each region is much smaller than the total tower body size, which is conducive to uniform air supply and uniform feeding; the above-mentioned adopts 9 partitions, but not Limited to 9 grids, including 4 grids, 12 grids, 16 grids, etc.;

2. With the split format, several split hoods can be connected in series with one blower to supply air together, or each split hood can be independently supplied by a blower;

3. The compartmentalized vertical sintering cooler of the utility model is a square cooler with a simple structure, reduces equipment investment, and reduces equipment operating costs;

4. The use of subdivided vertical sintering cooler is conducive to uniform air intake and overall downstream flow of sintering materials, no blockage in discharging materials, and significantly reduces the frequency of shutdown and maintenance;

5. Sinter radiant heat recovery function: The hot sinter just entering the tower body has a high temperature, and radiates heat energy to the tower body through the surface of the material layer. Set inside the tower body under the top cover, the radiant heat recovery device above the material layer can recover radiant heat energy, convert it into high-temperature steam, and enter the waste heat power generation system through the heat recovery pipeline.

Description of drawings

Fig. 1 is the structural representation of the utility model subdivided vertical cooling machine;

Fig. 2 is the structure schematic diagram of another kind of design of the grid vertical cooling machine of the present invention;

Fig. 3 is the structural representation of the third design of the utility model subdivided vertical cooling machine;

Fig. 4 is the sectional view of A-A position in Fig. 1;

Fig. 5 is the sectional view of another kind of design A-A position in Fig. 1;

Fig. 6 is the structural representation of the wind cap of the present utility model;

Fig. 7 is the structural representation that the double-deck vibrating feeder of the present invention is provided with two vibrators;

Fig. 8 is the structural representation that a vibrator is provided with the double-deck vibrating feeder of the present invention;

Fig. 9 is a partial schematic diagram of the working state of the gridded vertical cooler of the present invention;

Fig. 10 is the front view one of the feeding position of the utility model;

Fig. 11 is the front view two of the feeding position of the utility model;

Fig. 12 is a top view of the feeding position of the utility model;

Fig. 13 is the front view three of the feeding position of the utility model;

Fig. 14 is the front view of another design of the feeding position of the utility model;

Fig. 15 is the front view of the third design of the feeding position of the utility model;

Fig. 16 is the schematic diagram of the lifting device of the third design of the feeding position of the utility model;

Fig. 17 is the schematic diagram of the first radiant heat recoverer of fan-shaped hollow plate shape;

Fig. 18 is the schematic diagram of the second radiant heat recovery device of column and tube type;

Fig. 19 is a schematic diagram of the control system of the grid vertical cooler of the present invention.

Reference signs: A1: sub-grid vertical cooler; 1: feed bin; 101: straight pipe; 2: tower body; 3: sub-grid; 4: air inlet device; 401: air supply duct; 402: fan; 5: Discharging cone; 6: Temperature measuring probe; 7: Adjusting rod; 8: Plate feeder; 9: Hot air outlet; 10: Insulation layer; M: Air cap; M01: Support frame; M02: Air cap top cover; M03: conical cover plate; M04: hood air duct; M05: air flow channel; P: discharge equipment; P01: body support; P02: upper vibration tank; P03: lower vibration tank; P04: vibrator; P0402: lower vibrator; P05: regulating device; K: control system; F01: first radiant heat recovery device; F01a: second radiant heat recovery device; F0101: water inlet of radiant heat recovery device; F0102: radiant heat Steam outlet of the recoverer; F02: first heat recovery pipe (steam pipe); F02a: second heat recovery pipe (steam pipe); W: material height adjustment device; W01: support; W02: gear bracket; W03: from Drive wheel; W04: chain; W05: transmission gear; W06: manual rocker; W07: motor; W08: steel pipe; W09: hoist bracket; W10: hoist; W11: lifting device; W12: connecting rod; : Lifting motor; W15: Counter; W16: Backstop.

Detailed ways

According to the first embodiment provided by the utility model, a compartmentalized vertical sinter cooler is provided.

A compartmentalized vertical sinter cooler, the compartmentalized vertical cooler A1 includes a silo 1 , a tower body 2 , a compartmental frame 3 , an air inlet device 4 , a discharge cone 5 and a hot air outlet 9 . Wherein: the feed bin 1 is set directly above the tower body 2 . The grid frame 3 is arranged in the tower body 2 and is located at the lower part of the tower body 2 . The air inlet device 4 is arranged at the bottom of the tower body 2 . The discharge cone 5 is arranged below the tower body 2 . The grid frame 3 divides the inner lower part of the tower body 2 into a plurality of independent spaces. The hot air outlet 9 is arranged on the top or top of the tower body 2 .

Preferably, the subdivided vertical cooler A1 also includes a material height adjusting device W. The end of the feed bin 1 is provided with a straight pipe 101 . The material height adjusting device W is sleeved on the straight pipe 101 .

Preferably, a first radiant heat recovery device F01 is provided in the tower body 2 and close to the top cover of the tower body 2 . Preferably, a second radiant heat recoverer F01a is provided at the front end of the hot air outlet 9 .

Preferably, the first radiant heat recoverer F01 located at the top of the tower adopts a fan-shaped hollow plate. Preferably, the second radiant heat recovery device F01a adopts a plate-fin heat exchanger or a tube-and-tube heat exchanger.

Preferably, a discharge device P or a plate feeder 8 is provided below the discharge cone 5 .

In the present utility model, the air inlet device 4 includes a wind cap M, an air supply duct 401 , and a fan 402 . Wherein, the wind cap M is arranged in the tower body 2 . The fan 402 is arranged outside the tower body 2 . The air supply duct 401 is connected with the wind cap M and the blower fan 402 .

Preferably, the tower body 2 is square. The grid frame 3 divides the lower part of the tower body 2 into 2-24 independent spaces, preferably 4-20, more preferably 6-16, more preferably 8-12.

Preferably, a hood M is provided at the bottom of each independent space. A plurality of air caps M are connected in series with one fan 402 through the air supply duct 401 . Or each wind cap M is connected to a fan 402 through the air supply duct 401 .

Preferably, a discharge cone 5 is provided below each independent space.

Preferably, the inner side of the lower part of the tower body 2 and the inner side of the discharge cone 5 are provided with an insulating layer 10 .

In the present utility model, 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: a plurality of conical cover plates M03 are sequentially arranged on the supporting frame M01. From top to bottom, the bottom diameter of the conical cover plate M03 increases sequentially. The hood top cover M02 is arranged above the topmost conical cover plate M03, and the hood air duct M04 is arranged below the support frame M01 and connected to the support frame M01.

Preferably, an air flow channel M05 is formed between the adjacent conical cover plates M03.

Preferably, the number of airflow channels M05 is 2-200, preferably 5-100, more preferably 8-50.

More preferably, the top cover M02 of the hood is a tapered structure.

In the present utility model, the included angle of the wind cap top cover M02 is greater than the included angle of the tapered cover plate M03.

In the present utility model, the number of the conical cover plate M03 is 4-80, preferably 6-70, preferably 8-50, more preferably 12-40, for example 18, 20 or 25 .

In the present invention, the gap of the air flow channel M05 is 3-100mm, preferably 5-80mm, more preferably 7-50mm, for example 15, 20, 25, 30mm.

In the present utility model, the cone angle of the wind cap top cover M02 is 20-150 degrees, preferably 30-120 degrees, more preferably 40-90 degrees.

In the present invention, the cone angle of the conical cover plate M03 is 20-150 degrees, preferably 30-120 degrees, more preferably 40-90 degrees.

Preferably, the wind cap top cover M02 is a wear-resistant top cover made of wear-resistant steel; the conical cover M03 is a wear-resistant conical cover made of wear-resistant steel.

Preferably, the lower part of the discharge cone 5 is provided with an adjusting rod 7 .

Preferably, the tops of adjacent discharge cones 5 are connected to each other, and the lower parts of adjacent discharge cones 5 are separated.

Preferably, the upper part of the discharge cone 5 is provided with a temperature measuring probe 6 .

In the present utility model, the discharge device P is a double-layer vibrating feeder. The double-layer vibrating feeder includes the body support P01, the upper vibrating tank P02, the lower vibrating tank P03, and the vibrator P04. The upper layer vibration tank P02 and the lower layer vibration tank P03 are arranged on the body support P01. The upper layer vibration tank P02 is located above the lower layer vibration tank P03. The upper layer vibration tank P02 and the lower layer vibration tank P03 are respectively connected to the vibrator P04.

Preferably, an adjusting device P05 is provided on the upper vibrating tank P02 and/or the lower vibrating tank P03. The adjustment device P05 adjusts the inclination angle of the bottom plate of the lower vibration tank P03.

Preferably, the vibrator P04 includes an upper vibrator P0401 and a lower vibrator P0402. The upper layer vibrator P0401 is connected with the upper layer vibration tank P02. The lower vibrator P0402 is connected with the lower vibration tank P03.

Preferably, the upper vibration tank P02 and the lower vibration tank P03 are arranged on the body support P01 through springs.

Preferably, the subdivided vertical cooler A1 also includes a control system K. Control system K and material height adjustment device W, first radiant heat recovery device F01, second radiant heat recovery device F01a, air inlet device 4, discharge cone 5, temperature measuring probe 6, adjustment rod 7, discharge equipment P , plate feeder 8, and control the material height adjustment device W, the first radiant heat recovery device F01, the second radiant heat recovery device F01a, the air inlet device 4, the discharge cone bucket 5, the temperature measuring probe 6, and the adjustment rod 7. Operation of discharge equipment P and plate feeder 8.

In the present invention, the length of the straight pipe 101 is 0.5-3 meters, preferably 0.5-2.5 meters, more preferably 1-2 meters.

In the present utility model, the compartmental vertical cooling machine A1 also includes: a support W01, a gear bracket W02, a driven wheel W03, and a chain W04. Wherein: the outer side of the material height adjustment device W is provided with a support W01. The top cover of the tower body 2 is provided with a gear bracket W02. The gear bracket W02 is provided with a driven wheel W03. One end of the chain W04 is connected to the support W01, and the other end of the chain W04 passes through the top cover of the tower body 2 and is connected with the driven wheel W03.

Preferably, the gear bracket W02 is further provided with a transmission gear W05, and the transmission gear W05 is mated with the driven wheel W03.

In the utility model, the transmission gear W05 is a transmission gear reducer.

Preferably, the transmission gear W05 is connected with the manual rocker W06 or the motor W07, and the manual rocker W06 or the motor W07 drives the transmission gear W05.

More preferably, the transmission gear W05 is provided with a backstop W16.

In the utility model, the subdivided vertical cooler A1 also includes: steel pipe W08. One end of the steel pipe W08 is connected to the support W01, and the other end of the steel pipe W08 passes through the top cover of the tower body 2 to connect to the chain W04. The other end of the chain W04 is connected with the driven wheel W03.

Preferably, the steel pipe W08 protrudes from the top cover of the tower body 2 . The length of the steel pipe W08 protruding from the top cover of the tower body 2 is 0.1-1 meter, preferably 0.2-0.7 meter, more preferably 0.3-0.5 meter.

In the present invention, the number of supports W01 is 2-10, preferably 3-8, more preferably 4-6. A gear bracket W02 is arranged directly above each support W01. Each gear bracket W02 is provided with a driven wheel W03. One end of each chain W04 is connected to the support W01, and the other end of the chain W04 is connected to the driven wheel W03.

In the present invention, one end of each steel pipe W08 is connected to the support W01. The other end of the steel pipe W08 is connected to the chain W04, and the other end of the chain W04 is connected to the driven wheel W03.

Preferably, a plurality of supports W01 are arranged symmetrically on the outside of the material height adjusting device W.

In the utility model, the subdivided vertical cooling machine A1 also includes: a support W01, a chain W04, a gourd support W09, and a gourd W10. Wherein: the outer side of the material height adjustment device W is provided with a support W01. The top cover of the tower body 2 is provided with a gourd bracket W09. The gourd W10 is set on the gourd support W09. One end of the chain W04 is connected to the support W01, and the other end of the chain W04 passes through the top cover of the tower body 2 and is connected with the hook of the hoist W10.

Preferably, the subdivided vertical cooler A1 further includes: a steel pipe W08. Replace chain W04 with steel pipe W08. One end of the steel pipe W08 is connected to the support W01, and the other end of the steel pipe W08 passes through the top cover of the tower body 2 and is connected with the hook of the hoist W10.

Preferably, the hoist W10 is a manual hoist or an electric hoist.

Preferably, the steel pipe W08 protrudes from the top cover of the tower body 2 . The length of the steel pipe W08 protruding from the top cover of the tower body 2 is 0.1-1.5 meters, preferably 0.2-1.2 meters, more preferably 0.3-1 meters.

In the present invention, the number of supports W01 is 2-10, preferably 3-8, more preferably 4-6. A gourd support W09 is arranged directly above each support W01. Each gourd support W09 is provided with a gourd W10. One end of each chain W04 is connected to the support W01, and the other end of the chain W04 is connected to the gourd W10.

In the present invention, one end of each steel pipe W08 is connected to the support W01, and the other end of the steel pipe W08 is connected to the gourd W10.

Preferably, a plurality of supports W01 are arranged symmetrically on the outside of the material height adjusting device W.

In the utility model, the subdivided vertical cooling machine A1 also includes: a support W01, a steel pipe W08, and a lifting device W11. Wherein: the outer side of the material height adjustment device W is provided with a support W01. The top cover of the tower body 2 is provided with a lifting device W11, one end of the steel pipe W08 is connected to the support W01, and the other end of the steel pipe W08 passes through the top cover of the tower body 2 and is connected with the lifting device W11.

In the present invention, the number of supports W01 is 2-10, preferably 3-8, more preferably 4-6. A lifting device W11 is arranged directly above each support W01. One end of each steel pipe W08 is connected to the support W01, and the other end of the steel pipe W08 is connected to the lifting device W11.

Preferably, a plurality of supports W01 are arranged symmetrically on the outside of the material height adjusting device W.

In the present invention, a plurality of lifting devices W11 are connected with the lifting motor W14 through the connecting rod W12 and the transmission box W13.

Preferably, a counter W15 is also included. The counter W15 is connected with the lifting motor W14.

More preferably, the lifting device W11 is a screw lift.

In the present utility model, there is no special requirement for the first radiant heat recoverer F01 installed on the top of the inner space of the tower body (that is, under the top cover of the tower body 2). The top of the space is assembled to form a ring-shaped radiant heat recovery device F01.

The first radiant heat recovery device F01 is connected to the first heat recovery pipeline F02, which stores high-temperature steam and is further transported to the waste heat power generation system. The second radiant heat recovery device F01a is connected to the second heat recovery pipeline F02a, which stores high-temperature steam and is further transported to the waste heat power generation system.

In the present invention, both the first radiant heat recoverer F01 and the second radiant heat recoverer F01a include a water inlet F0101 of the radiant heat recoverer and a steam outlet F0102 of the radiant heat recoverer.

According to the second embodiment of the utility model, a sinter cooling method is provided.

A method for cooling sinter or a method for cooling sinter with a gridded vertical sinter cooler according to the first embodiment, the method includes the following steps:

(1) The sintered ore enters the silo 1 of the subdivided vertical cooler A1, and flows continuously from top to bottom under the action of gravity; under the condition of free accumulation, the sintered ore is filled around the lower port of the material height adjustment device W , the material height adjusting device W moves up and down to realize the material height change;

(2) The air inlet device 4 of the vertical cooling machine A1 transports cooling gas (such as air) into the tower body 2 through the wind cap M, and the cooling gas passes through and accumulates in each vertical cooling machine A1 from bottom to top. The sintered ore material layer in the independent space conducts countercurrent heat exchange with the sintered ore. After the heat exchange, the temperature of the cooling gas gradually increases, and is discharged from the sintered ore material surface in the A1 tower of the sub-grid vertical cooler to form high-temperature hot air. Exhausted through the hot air outlet 9; preferably, the high temperature hot air is transported to the waste heat utilization system;

(3) The sinter accumulated in the tower body 2 of the vertical cooler A1 is cooled by countercurrent heat exchange with the cooling gas from bottom to top, and enters the discharge cone at the bottom of the vertical cooler A1 In the bucket 5, it is then discharged by the discharge device P or the apron feeder 8;

(4) The first radiant heat recovery device F01 recovers the radiant heat energy of the sinter to generate high-temperature water vapor, and the water vapor enters the waste heat power generation system.

Preferably, the second radiant heat recoverer F01a recovers the radiant heat energy of the sinter to generate high-temperature water vapor, and the water vapor enters the waste heat power generation system.

Preferably, according to the temperature detected by the temperature measuring probe 6, the control system K controls the material height adjustment device W, the first radiant heat recoverer F01, the second radiant heat recoverer F01a, the air inlet device 4, and the discharge cone 5 , the adjustment rod 7, the discharge equipment P, and the operation of the plate feeder 8.

Preferably, a temperature measuring probe 6 is set corresponding to each discharge cone 5, and according to the temperature detected by each temperature measuring probe 6, the control system K controls the corresponding discharge device P or plate feeder 8. operate.

The grid vertical cooler A1 also has a self-feedback discharge adjustment function. The sinter temperature in the corresponding area is detected by the temperature measuring probe 6, and when the detected sinter temperature at a certain position in the circumferential direction reaches the cooling effect, the discharge device P ( Or apron feeder 8) for normal discharge, otherwise, reduce the discharge speed of the discharge device P (or apron feeder 8) or close the discharge device P (or apron feeder 8), Allow the sinter in this area to cool for a period of time, and when the temperature of the sinter reaches the cooling effect, proceed to normal discharge. At the same time, the discharge speed can also be adjusted by adjusting the depth at which the adjusting rod 7 is inserted into the material layer.

Example 1

The height of the tower body 2 is 9 meters, and the length and width of the tower body 2 are 14 meters. The height of the discharge cone 5 is 7 meters. The discharge device P is a double-layer vibrating feeder. Above the interior of the tower body 2, a first ring-shaped radiant heat recovery device F01 is formed by assembling a plurality of ring-shaped hollow plates.

The diameter of the hood M is 2.5 meters.

The daily processing capacity of sinter is 8600 tons/day. The temperature of the sintered ore before entering the silo 1 is about 700°C, and the temperature of the hot air at the hot air outlet 9 reaches about 500°C. The recovered heat is used to generate electricity, and the power generation is about 36 kWh.

Compared with the ring cooler of the prior art, the advantages are: high power generation, low air leakage rate, small dust emission, simple and reliable equipment, and better sealing performance, the technology of the utility model can provide higher temperature hot air for High-temperature steam is generated, which significantly improves power generation efficiency.

This process can also overcome the problem of secondary sintering of sintered ore in the vertical cooling device and prevent the vertical cooling device from being blocked. The device has been in operation for 6 months, and there is no problem of material blocking or jamming.

Example 2

Repeat Example 1, except that a second radiant heat recovery device F01a is further provided at the front end of the hot air outlet 9; a tube-and-tube heat exchanger is used, as shown in FIG. 18 .

Example 3

Repeat embodiment 2, just adopt plate type ore feeder 8 to carry out discharging, as shown in Figure 3.

Claims (27)

1. a kind of vertical sinter cooler of lattice, the vertical sinter cooler of the lattice (A1) include feed bin (1), tower body (2), Regal (3), air-intake device (4), discharge cone bucket (5) and hot-blast outlet (9), wherein：Feed bin (1) setting tower body (2) just Top, lower part of Regal (3) setting in tower body (2) and positioned at tower body (2), air-intake device (4) are arranged in tower body (2) Bottom, discharge cone bucket (5) are arranged in the lower section of tower body (2)；Regal (3) is by tower body (2) lower inside lattice at multiple independences Space；Hot-blast outlet (9) is arranged on the top or top of tower body (2),

Wherein the height of tower body is 5-18 meters.

2. the vertical sinter cooler of lattice according to claim 1, it is characterised in that：The vertical sinter cooling of the lattice Machine (A1) further includes height of materials regulating device (W), and the end of feed bin (1) is provided with straight tube (101), height of materials regulating device (W) it is sleeved on straight tube (101)；And/or

It is provided with the first radiation heat regenerator (F01) in tower body (2) and close to tower body (2) head cover, and/or

Discharge apparatus (P) or plate belt feeder (8) are equipped with below discharge cone bucket (5).

3. the vertical sinter cooler of lattice according to claim 2, it is characterised in that：Front end in hot-blast outlet (9) The second radiation heat regenerator (F01a) of setting.

4. the vertical sinter cooler of lattice according to any one of claim 1-3, it is characterised in that：The air inlet dress It includes blast cap (M), air supply duct (401), wind turbine (402) to set (4), wherein blast cap (M) setting is in tower body (2), wind turbine (402) setting connects blast cap (M) and wind turbine (402) in the outside of tower body (2), air supply duct (401)；And/or

The tower body (2) is rectangular, and Regal (3) is by tower body (2) lower inside lattice at 2-24 independent spaces.

5. the vertical sinter cooler of lattice according to claim 4, it is characterised in that：Regal (3) will be in tower body (2) Portion's lowermost cell is at 4-20 independent spaces.

6. the vertical sinter cooler of lattice according to claim 5, it is characterised in that：Regal (3) will be in tower body (2) Portion's lowermost cell is at 6-16 independent spaces.

7. the vertical sinter cooler of lattice according to claim 4, it is characterised in that：The bottom of each separate space If there are one blast caps (M)；Multiple blast caps (M) connect after air supply duct (401) series connection with a wind turbine (402)；Or it is each A blast cap (M) connect by air supply duct (401) with a wind turbine (402)；And/or

The inside of tower body (2) lower inside and discharge cone bucket (5) is equipped with insulating layer (10).

8. the vertical sinter cooler of lattice according to claim 7, it is characterised in that：The lower section of each separate space If there are one discharge cone buckets (5).

9. the vertical sinter cooler of lattice according to claim 7 or 8, it is characterised in that：The blast cap (M) includes branch Support (M01), hood top cover (M02), multiple taper cover boards (M03) and blast cap air hose (M04), wherein：Multiple taper cover boards (M03) it is successively set on supporting rack (M01), from top to bottom, the base diameter of taper cover board (M03) is sequentially increased；Blast cap top (M02) setting is covered in the top of top taper cover board (M03), blast cap air hose (M04) setting the lower section of supporting rack (M01) simultaneously And it is connect with supporting rack (M01).

10. the vertical sinter cooler of lattice according to claim 9, it is characterised in that：The adjacent taper cover board (M03) gas channel (M05) is formed between.

11. the vertical sinter cooler of lattice according to claim 10, it is characterised in that：The number of gas channel (M05) Amount is 2-200.

12. the vertical sinter cooler of lattice according to claim 11, it is characterised in that：The number of gas channel (M05) Amount is 5-100.

13. the vertical sinter cooler of lattice according to claim 9, it is characterised in that：The hood top cover (M02) is Pyramidal structure.

14. the vertical sinter cooler of lattice according to any one of claim 10-12, it is characterised in that：The wind Crown lid (M02) is pyramidal structure.

15. the vertical sinter cooler of lattice according to claim 14, it is characterised in that：The hood top cover (M02) Angle be more than taper cover board (M03) cone angle；And/or

The gap of gas channel (M05) is 3-100mm.

16. the vertical sinter cooler of lattice according to claim 15, it is characterised in that：Between gas channel (M05) Gap is 5-80mm.

17. the vertical sinter cooler of lattice according to claim 16, it is characterised in that：Between gas channel (M05) Gap is 7-50mm.

18. the vertical sinter cooler of lattice according to any one of claim 1-3 or 5-8, it is characterised in that：Discharge The lower part of cone bucket (5) is equipped with regulating rod (7)；And/or

The top of discharge cone bucket (5) is equipped with temperature probe (6).

19. the vertical sinter cooler of lattice according to claim 4, it is characterised in that：The lower part of discharge cone bucket (5) is set There is regulating rod (7)；And/or

The top of discharge cone bucket (5) is equipped with temperature probe (6).

20. the vertical sinter cooler of lattice according to claim 18, it is characterised in that：Adjacent discharge cone bucket (5) Top be connected with each other, the lower part of adjacent discharge cone bucket (5) separates.

21. the vertical sinter cooler of lattice according to claim 19, it is characterised in that：Adjacent discharge cone bucket (5) Top be connected with each other, the lower part of adjacent discharge cone bucket (5) separates.

22. the vertical sinter cooler of lattice according to claim 2, it is characterised in that：Discharge apparatus (P) is double-layer vibration Dynamic batcher；The double-deck oscillating feeder includes body rack (P01), upper layer vibra shoot (P02), lower layer's vibra shoot (P03), vibration Device (P04)；Upper layer vibra shoot (P02) and lower layer's vibra shoot (P03) are arranged on body rack (P01), upper layer vibra shoot (P02) Positioned at the top of lower layer's vibra shoot (P03), upper layer vibra shoot (P02) and lower layer's vibra shoot (P03) connect with vibrator (P04) respectively It connects.

23. the vertical sinter cooler of lattice according to claim 22, it is characterised in that：Upper layer vibra shoot (P02) and/ Or lower layer's vibra shoot (P03) is equipped with regulating device (P05), the bottom plate that regulating device (P05) adjusts lower layer's vibra shoot (P03) inclines Angle.

24. the vertical sinter cooler of lattice according to claim 22 or 23, it is characterised in that：Vibrator (P04) wraps Upper layer vibrator (P0401) and lower layer's vibrator (P0402) are included, upper layer vibrator (P0401) connects with upper layer vibra shoot (P02) It connects, lower layer's vibrator (P0402) is connect with lower layer vibra shoot (P03).

25. the vertical sinter cooler of lattice according to claim 22, it is characterised in that：Upper layer vibra shoot (P02) and Lower layer's vibra shoot (P03) is arranged by spring on body rack (P01).

26. the vertical sinter cooler of lattice according to any one of claim 1-3 or 5-8, it is characterised in that：This point The vertical sinter cooler of lattice (A1) further includes control system (K), control system (K) and height of materials regulating device (W), first Radiate heat regenerator (F01), second radiation heat regenerator (F01a), air-intake device (4), discharge cone bucket (5), temperature probe (6), Regulating rod (7), discharge apparatus (P), plate belt feeder (8) connection, and control material height adjustment device (W), the first radiant heat Recover (F01), the second radiation heat regenerator (F01a), air-intake device (4), discharge cone bucket (5), temperature probe (6), regulating rod (7), the operation of discharge apparatus (P), plate belt feeder (8).

27. the vertical sinter cooler of lattice according to claim 4, it is characterised in that：The vertical sinter of the lattice is cold But machine (A1) further includes control system (K), control system (K) and height of materials regulating device (W), the first radiation heat regenerator (F01), the second radiation heat regenerator (F01a), air-intake device (4), discharge cone bucket (5), temperature probe (6), regulating rod (7), row Expect equipment (P), plate belt feeder (8) connection, and control material height adjustment device (W), first radiation heat regenerator (F01), Second radiation heat regenerator (F01a), air-intake device (4), discharge cone bucket (5), temperature probe (6), regulating rod (7), discharge apparatus (P), the operation of plate belt feeder (8).