WO2020135660A1 - Environmentally friendly and energy-saving blast furnace slag intelligent treatment system - Google Patents

Abstract

Disclosed is an environmentally friendly and energy-saving blast furnace slag intelligent treatment system, comprising a granulating tower (1), a chimney (3), a filtering tank (7), a hot water heat exchange unit, a cooling tower (11), a water storage tank (12), a slag-conveying automobile (9), and an intelligent slag-grabbing apparatus (8). The filtering tank (7), the hot water heat exchange unit, the cooling tower (11) and the water storage tank (12) are successively connected in series, and the intelligent slag-grabbing apparatus (8) can grab water granulated slag in the filtering tank (7). The environmentally friendly and energy-saving blast furnace slag intelligent treatment system can not only fully recycle steam heat energy in a granulating process, but can also recycle the heat energy of slag washing water and steam of the filtering tank (7). Meanwhile, the workload of the cooling tower (11) is reduced, the emission of sulfur-containing steam in a slag treatment process can be reduced to realize white smoke elimination treatment, and energy conservation and emission reduction and effective cyclic utilization of energy are actually realized; and the intelligent slag grabbing and unloading operation on slag particles in the filtering tank (7) is realized through the intelligent slag-grabbing apparatus (8).

Description

Environmental protection and energy-saving intelligent processing system for blast furnace slag Technical field

The invention relates to the field of ironmaking in the metallurgical industry, in particular to an environmentally friendly energy-saving intelligent slag processing system for blast furnace.

Background technique

High-temperature liquid slag (1350℃-1500℃) will be produced during blast furnace smelting. Domestically, 700 million tons of molten iron will be produced each year, and 250 million tons of high-temperature liquid slag will be produced. Relevant research has been carried out at home and abroad for many years, hoping to make full use of the blast furnace slag heat to achieve the recovery of waste heat.

China Patent CN106282445B, published on January 4, 2017, discloses "an apparatus and method for recovering residual heat of blast furnace slag". This method uses metal balls to mix with high-temperature liquid slag to obtain blast furnace slag from 500℃ to 800℃ Solid mixture with metal balls. The mixture is crushed and separated and waste heat recovered by rotating metal cages. The slag fragments obtained by this method are difficult to achieve recycling. The solid mixture of blast furnace slag and metal balls at 500 ℃ ~ 800 ℃ is rotating metal After the crushing and separation are completed in the cage, the wear of the metal cage will be very serious under high temperature conditions, which will have a serious impact on the service life of the equipment and the operating rate of the entire system.

At home and abroad, sedimentation filtration method (often called bottom filtration method) water slag process is usually used to treat molten slag. The slag is hydraulically flushed in front of the blast furnace. After being crushed with water, the molten slag is crushed into a loose slag-water mixture (often called slag). The slag enters the filter tank through the slag flushing channel, and the liquid water passes through the filter layer in the filter tank. Filtration, leaving solid moist slag particles at the bottom of the filter pool, and then grab the slag particles by bridge grab crane and transport them out by truck. The slag particles (particle diameter 0.2 mm to 3 mm) obtained after water quenching are widely used, and can be used as cement materials, thermal insulation fillers, etc., so that the slag can be fully utilized.

Blast furnace slag water (about 70℃～90℃) as a low-temperature waste heat source has the characteristics of stable temperature and large flow rate. For the utilization of the residual heat of slag water, Chinese patent CN207585372U, published date July 6, 2018, published A "blast furnace slag flushing water waste heat utilization system" was introduced, which led the slag flushing water to the circulation pool through a lift pump and a drainage pipe. The circulation pool was connected to a heating pump, and the outlet of the heating pump was connected to the sintering mixture water pipeline through the water supply pipe and the circulation pool. It is also connected to the concentrated brine discharge line of the power plant through the first pipeline, or after the heat exchanger, the residual heat of the excess water is fully utilized and injected into the circulation pool for recycling. The system leads the slag flushing water from the pool to the circulation tank and then takes other measures for waste heat utilization, which will lose a lot of heat and is not conducive to the recovery of the thermal energy of the slag flushing water.

China Patent CN207121610U, published on March 20, 2018, discloses a "blast furnace slag flushing steam waste heat recovery and utilization system", which uses an exhaust device to collect the slag flushing steam and transport it to the steam regenerator through the steam reheating device 3. Lithium bromide chilled water unit, finally condensing the steam into condensed water and producing chilled water. The system needs to be equipped with a large number of additional equipment on the basis of the original water slag system, such as an exhaust device, a steam reheating device, a steam regenerator, and a vapor-liquid heat exchanger. The system has a complicated process and high equipment investment; Not only is there a large amount of slag water (about 70℃～90℃), but also the slag particles obtained after the slag water is quenched, and part of the steam (about 60℃～100℃) cannot be captured by the hood. The pipeline enters the circulation pool, and the heat of the slag flushing water and steam in the circulation pool is not fully recycled.

China Patent CN101265039B, published on September 17, 2008, discloses "an environmentally friendly bottom filtration method blast furnace slag treatment equipment and treatment method", which can reduce the amount of slag water, reduce water consumption, increase filtration speed, reduce The filter pool occupies an area, this technology has been applied for many years and achieved good results. The water quenching of the high-temperature liquid slag is completed by circulating water (about 40℃), and it can be used after cooling the slag water (about 70℃～90℃). In this method, the slag water passes through the filter tube and then goes to the tower The pump directly hits the cooling tower for cooling, which not only wastes the thermal energy of the slag water, but also increases the workload of the cooling tower.

From the above analysis, it can be seen that although the existing technology has provided a method for recovering the heat energy of the blast furnace slag system filter pool, there are various defects to be solved at different levels and in different aspects. It is necessary to study the new blast furnace slag system filter pool thermal energy Recycling methods to achieve efficient recycling of energy and reduce air pollution.

In the blast furnace slag treatment process, there are a large amount of high-temperature steam in the granulation process, as well as slag flushing water with stable filter temperature and large flow rate, as well as steam that exists on the surface of the filter tank for a long time during slag flushing. The thermal energy of steam and reducing the air emissions of sulfur-containing steam are of great significance for energy saving and emission reduction.

Summary of the invention

In order to recover the heat energy in the blast furnace slag, the present invention provides an environmentally friendly energy-saving blast furnace slag slag intelligent processing system, which can not only fully recover the steam heat energy in the granulation process, but also recover the filtration The thermal energy of the slag water and steam in the pool, while reducing the workload of the cooling tower, can also reduce the emission of sulfur-containing steam in the slag treatment process to achieve whitening treatment, and truly achieve energy saving and effective recycling of energy; through intelligent grasping The slag equipment realizes the intelligent grasping and discharging of slag particles in the filter pool.

The technical invention adopted by the present invention to solve its technical problems is: an environmentally friendly energy-saving blast furnace slag intelligent processing system, including a granulation tower, a chimney, a filter pool, a hot water heat exchange unit, a cooling tower, a storage tank, and a slag transport vehicle And intelligent slag catching equipment, the granulation tower is connected to the filter pool through the slag water mixture pipeline, the granulation tower is connected to the chimney through the steam pipeline, the filter pool is connected to the chimney through the steam heat exchange line, and the chimney is connected to the cooling through the drain line The tower is connected, the filter pool, the hot water heat exchange unit, the cooling tower and the storage tank are serially connected in series, and the intelligent slag grasping device can grasp the water slag in the filter pool.

The granulation tower is provided with a granulator and a first steam heat exchanger, the granulator is located below the high temperature slag inlet of the granulation tower, the first steam heat exchanger is located at the upper part of the granulation tower, the high temperature of the granulation tower The slag inlet is located between the first steam heat exchanger and the granulator.

The chimney is provided with a spray device, a demister and a backwash device in sequence from bottom to top. The connection between the steam pipe and the chimney is located below the spray device. The spray device contains long spray guns arranged uniformly and alternately along the circumferential direction of the chimney. There are multiple high-pressure spray heads evenly arranged on the short spray gun, long spray gun and short spray gun.

The filter pool includes a first filter sub-pool and a second filter sub-pool arranged side by side. The top of the filter pool is provided with a movable steam cover, which can seal the first filter sub-pool or the second filter Minute pool.

The high-temperature steam discharged from the first filter sub-pool or the second filter sub-pool can enter the second steam heat exchanger to radiate heat. After the heat is released, the high-temperature steam can enter the chimney. The second steam heat exchanger is connected to the first heat exchanger A heat pipeline, the first heat exchange medium in the first heat exchange pipeline can absorb heat in the second steam heat exchanger and enter the user pipe network after the heat absorption.

The hot water heat exchange unit contains a first hot water heat exchanger and a second hot water heat exchanger, the first hot water heat exchanger and the second hot water heat exchanger are arranged in series or parallel, and the first hot water heat exchange Both the water heater and the second hot water heat exchanger are installed in the water pump room, and the water pump room is located between the filter pool and the storage tank.

The high-temperature filtered water flowing out of the filter pool can release heat in the first hot water heat exchanger and the second hot water heat exchanger, and the first hot water heat exchanger and the second hot water heat exchanger are connected with a second heat exchange The pipeline, the second heat exchange medium in the second heat exchange line can absorb heat in the first hot water heat exchanger and the second hot water heat exchanger and enter the user pipe network after absorbing the heat.

The intelligent slag grasping device includes: a sensor detection module, a control module connected to the sensor detection module, and a slag grasping module and a slag particle analysis module connected to the control module;

The slag particle analysis module is used to analyze the chemical composition of the slag particles, and transmit the analysis result to the control module;

The sensor detection module is used to detect signals including the position of the slag particles and the position of the gripping part of the slag gripping module;

The control module outputs slag grasping and slag discharging instructions to the slag grasping module according to the signal detected by the sensor detection module, and statistically changes the chemical composition of slag particles according to the analysis result and uploads to the blast furnace system Central control system;

The slag grasping module is erected on the filter pool and is used for carrying out slag grasping and slag discharging operations according to the slag grasping and slag discharging instructions.

The slag grasping module includes: two rail frames disposed on both sides of the filter tank and parallel to each other, a cart running mechanism spanning the rail frame, and a trolley running on the cart operating mechanism Mechanism, a lifting mechanism connected to the lower part of the trolley running mechanism, and the grabbing portion connected to the bottom of the lifting mechanism;

The cart running mechanism moves along two of the track frames, and a cart track perpendicular to the track frames is provided on the track frame;

The lifting mechanism is used to raise or lower the grabbing section;

The grasping part realizes the operation of grasping slag and discharging slag through the grasping action.

The sensor detection module includes:

The material level scanning sensor is connected to the control module and is used for detecting the state of the material level of the slag particles in the filter tank and outputting the material level detection signal;

A horizontal position sensor, connected to the control module, is used to detect the horizontal position of the gripping part and output a horizontal position detection signal;

A height sensor, connected to the control module, is used to detect the height of the gripping part and output a height detection signal;

A weight sensor, connected to the control module, is used to detect the weight of the slag particles in the filter tank and output a slag particle weight signal;

Wherein, the control module determines the position of slag particles according to the material level detection signal;

The control module controls the movement of the cart operating mechanism and the cart operating mechanism according to the horizontal position detection signal, so that the gripping section is operated to the slag particle position or a predetermined slag discharge position;

The control module controls the lifting mechanism to raise or lower the gripping portion according to the height detection signal;

The control module statistically calculates the slag weight change in the filter tank in real time according to the slag particle weight signal, and calculates the cumulative slag catch weight, and controls the slag catch when the cumulative slag catch weight reaches a preset weight The module stops the slag catching operation, and feeds back the slag particle weight change to the central control system of the blast furnace system.

The beneficial effects of the invention are:

1. The invention can fully return the heat energy of the steam in the slag treatment process and the slag flushing water in the filter pool, and realize the effective recycling of energy.

2. The present invention proposes steam treatment measures of heat exchange followed by spraying, which can reduce the emission of sulfur-containing steam during the slag treatment process and reduce air pollution.

3. The temperature of the high-temperature filtered water is lowered after being processed by the heat exchanger, which can reduce the working load of the cooling tower and achieve efficient cooling.

4. The invention adopts a non-powered heat exchanger, which has the advantages of low operating cost and high benefit.

5. The invention detects and analyzes the water quality of the filtered water, simultaneously detects the temperature and flow rate of the filtered water, and feeds back all the detection results to the blast furnace central control system in time to optimize the blast furnace raw fuel quality and ratio, optimize the blast furnace operation, and promote Blast furnace forward plays an important role.

6. The invention can timely monitor the weight and composition of blast furnace slag and feed it back to the blast furnace central control system to realize predictive production decisions, optimize blast furnace raw fuel quality and ratio, and optimize blast furnace operation.

BRIEF DESCRIPTION

The accompanying drawings forming part of this application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation on the present invention.

FIG. 1 is a plan view of an environmentally friendly energy-saving blast furnace slag intelligent processing system according to the present invention.

2 is a perspective schematic view of an environmentally friendly energy-saving blast furnace slag intelligent processing system according to the present invention.

Figure 3 is a schematic diagram of the structure of the granulation tower.

Fig. 4 is a schematic structural view of a chimney.

Fig. 5 is a plan view of a shower device.

Fig. 6 is a schematic diagram of the structure of a filter pool, a pump room, a cooling tower and a storage tank.

7 is a schematic diagram of the overall circuit of the intelligent slag catching device.

Fig. 8 is a schematic diagram of the mechanical structure of an intelligent slag catching device.

Fig. 9 is a detailed circuit diagram of an intelligent slag catching device.

1. Granulation tower; 2. First induced draft fan; 3. Chimney; 4. Second induced draft fan; 51. Valve of the first filter pool steam pipe; 52. Valve of the second filter pool steam pipe; 61. First slag water Mixing pipeline valve; 62, second slag-water mixture pipeline valve; 7, filter pond; 71, first filtering sub-pool; 72, second filtering sub-pool; 8, intelligent slag handling equipment; 9, slag transport vehicle; 10. Water pump house; 11, cooling tower; 12, storage tank; 13, first steam heat exchanger; 14, granulator; 15, backwash device; 16, demister; 17, spray device; 18, long spray gun ; 19, short spray gun; 20, high-pressure nozzle; 21, second steam heat exchanger; 22, removable steam hood; 23, first hot water heat exchanger; 24, second hot water heat exchanger; 39, steam Pipeline; 40, steam heat exchange pipeline; 41, slag water mixture pipeline; 42, drainage pipeline; 43, user pipeline network;

110, slag grasping module; 120, slag particle analysis module; 130, predetermined slag discharge position; 140, control module; 150, sensor detection module; 160, central control system; 111, rail frame; 112, cart operating mechanism; 113 , Trolley running mechanism; 114, lifting mechanism; 115, gripping section; 116, cart wheel; 117, wire rope; 121, slag; 153, material level scanning sensor; 154, horizontal position sensor; 155, height sensor; 156 , Weight sensor; 157, torque sensor.

detailed description

It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other if there is no conflict. The present invention will be described in detail below with reference to the drawings and in conjunction with the embodiments.

An environment-friendly and energy-saving intelligent slag slag processing system, including a granulation tower 1, a chimney 3, a filter tank 7, a hot water heat exchange unit, a cooling tower 11, a storage tank 12, a slag transport vehicle 9 and an intelligent slag handling equipment 8, The granulation tower 1 is connected to the filter tank 7 through a slag-water mixture pipe 41, and the granulation tower 1 is connected to the chimney 3 through a steam pipe 39, and the filter tank 7 is connected to the chimney 3 through a steam heat exchange line 40, and the chimney 3 is connected to a drain line 42 is connected to the cooling tower 11, the filter tank 7, the hot water heat exchange unit, the cooling tower 11 and the storage tank 12 are connected in series in sequence, and the intelligent slag grasping device 8 can grab the water slag in the filter tank 7 and transport The slag car 9 is used to transport the water slag grabbed by the intelligent slag grabbing device 8, as shown in FIGS. 1 to 6.

In this embodiment, the granulation tower 1 is provided with a granulator 14 and a first steam heat exchanger 13, the granulator 14 is located below the high temperature slag inlet of the granulation tower 1, and the first steam heat exchanger 13 Located in the upper part of the granulation tower 1, the high-temperature slag inlet of the granulation tower 1 is located between the first steam heat exchanger 13 and the granulator 14. The granulator is located below the inlet of the high-temperature slag in the granulation tower, and the steam heat exchanger is located above the granulator and close to the top of the granulation tower.

In this embodiment, the lower part of the granulation tower 1 is connected to the filter tank 7 through a slag-water mixture pipe 41, and the top of the granulation tower 1 is connected to the chimney 3 through a steam pipe 39, and a first guide is provided on the steam pipe 39 The connection between the fan 2, the steam pipe 39 and the granulation tower 1 is located above the first steam heat exchanger 13. The uncondensed steam in the granulation tower is introduced into the chimney from the steam pipe on the top side of the granulation tower by the induced draft fan.

In this embodiment, the chimney 3 is provided with a spray device 17, a demister 16 and a backwash device 15 in this order from the bottom to the top. The connection between the steam pipe 39 and the chimney 3 is located below the spray device 17 and the spray device 17 may be provided with one or more layers, and the connection between the steam heat exchange line 40 and the chimney 3 is also located below the spray device 17, the spray device 17 contains long and short spray guns 18 and short spray guns uniformly arranged along the circumference of the chimney 3 19. A plurality of high-pressure spray heads 20 are evenly arranged on the long spray gun 18 and the short spray gun 19, as shown in FIG. 5.

In this embodiment, the filter pool 7 includes a first filter sub-pool 71 and a second filter sub-pool 72 arranged side by side (up and down in FIG. 1) adjacent to each other, and a movable steam is provided on the top of the filter pool 7 Hood 22, the movable steam hood 22 can move back and forth between the tops of the first filtration sub-pool 71 and the second filtration sub-pool 72, so that the movable steam hood 22 can seal the first filtration sub-pool 71 or the second filtration sub池72. During slag flushing, the movable steam hood seals the first filter sub-pool 71 or the second filter sub-pool 72 to avoid the discharge of sulfur-containing steam to the air; after the slag flushing stops, the steam hood is removed to facilitate the slag removal operation to clean the slag in the filter pool grain.

In this embodiment, the lower part of the chimney 3 is connected to the cooling tower 11 through a drain line 42, and the upper parts of the first filter sub-pool 71 and the second filter sub-pool 72 are provided with steam discharge ports, which exchange heat with steam The pipeline 40 is connected, and the steam heat exchange pipeline 40 is provided with a second steam heat exchanger 21 and a second induced draft fan 4. The slag water mixture pipe 41 is provided with a first slag water mixture pipe valve 61 and a second slag water mixture pipe valve 62, and the steam heat exchange line 40 is provided with a first filter pool steam pipe valve 51 and a second filter pool steam pipe valve 52, as shown in Figure 1. The second induced draft fan 4 can extract the steam on the surface of the filter pool and enter the second steam heat exchanger 21.

In this embodiment, the high-temperature steam discharged from the first filter sub-pool 71 or the second filter sub-pool 72 can enter the second steam heat exchanger 21 to release heat, and the high-temperature steam can enter the chimney 3 after releasing heat. The second steam heat exchanger 21 is connected with a first heat exchange line, and the first heat exchange medium (such as normal temperature water or other medium) in the first heat exchange line can absorb heat in the second steam heat exchanger 21 and absorb heat After entering the user network 43.

In this embodiment, the hot water heat exchange unit includes a first hot water heat exchanger 23 and a second hot water heat exchanger 24, the first hot water heat exchanger 23 and the second hot water heat exchanger 24 are connected in series Or set in parallel (as shown in FIG. 6 for series), the first hot water heat exchanger 23 and the second hot water heat exchanger 24 are both installed in the water pump room 10, and the water pump room 10 is located between the filter tank 7 and the storage tank 12 .

In this embodiment, the high-temperature filtered water flowing out of the filter tank 7 can release heat in the first hot water heat exchanger 23 and the second hot water heat exchanger 24, and the first hot water heat exchanger 23 and the second heat A second heat exchange line is connected to the water heat exchanger 24, and the second heat exchange medium (normal temperature water or other medium) in the second heat exchange line can exchange heat with the first hot water heat exchanger 23 and the second hot water The heat sink 24 absorbs heat and enters the user pipe network 43 after absorbing heat. The high-temperature filtered water flows out from the bottom of the filter pool and passes through multiple hot water heat exchangers in turn. In the heat exchange process, the heating medium (normal temperature water or other medium) is heated. The normal temperature water (or other medium to be heated) passes through the pump room The hot water heat exchanger enters the user's pipe network after being heated.

In this embodiment, the cooling tower 11 is located above the storage tank 12, the water discharged from the cooling tower 11 will enter the storage tank 12, the storage tank 12 is connected to the granulation tower 1 and the chimney 3 through the water pipeline, and the bottom of the filter tank 7 A filtered water detection and analysis unit is connected to the outlet. The filtered water detection and analysis unit can detect the water quality, temperature and flow rate of the filtered water. The steam heat exchange line 40 is provided with a first waste heat refrigerator, and the granulation tower 1 is provided with a second A waste heat refrigerator. The environmentally friendly energy-saving blast furnace slag slag processing system further includes a slag transport vehicle 9.

The temperature of the high-temperature filtered water is reduced by the heat exchanger (the first hot water heat exchanger 23 and the second hot water heat exchanger 24) to become low-temperature filtered water. The low-temperature filtered water enters the cooling tower for further cooling and enters the storage tank as Low-temperature slag flushing water, conveying water and spraying water are used for standby to realize the recycling of filtered water.

An intelligent slag grasping device 8 is provided above the filter tank, and slag vehicles are parked and transported on the side of the filter tank. The intelligent slag grabbing device 8 includes a sensor detection system, a central control system, a control device, a slag particle analysis module, and a grab crane. After receiving the signal from the sensor system, the central control system controls the grab crane to carry out the slag grab operation through the control device. Then unload the slag particles to the slag truck, as shown in Figure 7.

At the bottom outlet of the filter tank, the water quality of the filtered water is tested and analyzed, and the temperature and flow rate of the filtered water are detected at the same time, and all the test results are fed back to the blast furnace central control system in a timely manner to optimize the blast furnace operation and promote the blast furnace forward. The system can calculate the weight of slag particles in the entire filter pool and analyze the changes in the chemical composition of the slag particles through the slag particle analysis module. The weight and composition of the blast furnace slag can be monitored in time and fed back to the blast furnace central control system to realize predictive production decisions and optimization. Blast furnace raw fuel quality and ratio, optimizing blast furnace operation.

The heat exchanger can be replaced by a waste heat refrigerator (that is, the second steam heat exchanger 21 is replaced by a first waste heat refrigerator, and the first hot water heat exchanger 23 and the second hot water are replaced by a second waste heat refrigerator 24) Complete the utilization of the waste heat of steam and hot water in the slag treatment process. It is also possible to install two systems of heat exchanger and waste heat refrigerator at the same time. The waste heat refrigeration system is operated for air conditioning in summer and the heat exchanger system is used for heating in winter.

The intelligent slag catching device 8 of the present invention is described in detail below.

The intelligent slag grasping device includes: a sensor detection module 150, a control module 140 connected to the sensor detection module 150, and a slag grasping module 110 and a slag particle analysis module 120 connected to the control module 140, as shown in FIGS. 7, 8 and 9 Show.

The slag particle analysis module 120 is used to analyze the chemical composition of the slag particles and transmit the analysis result to the control module 140. Among them, the slag particle analysis module 120 and the control module 140 can be connected by communication through a signal transmission line, and can also be connected by wireless communication through Bluetooth communication, a wireless communication network, a local area network, or the like, which is not limited in the present invention.

In addition, the slag particle analysis module 120 may be installed at the slag discharge position, and a manipulator cooperated therewith is provided. The manipulator is used to grab the slag particles after the slag grasping module unloads the slag particles, as a slag particle sample, and send it to the sample placement position of the slag particle analysis module. Among them, the manipulator can be set to grab a slag particle sample at a predetermined interval, or it can receive a detection command through a signal line or wireless communication, and grab the slag particle sample according to the detection command, so that the slag particle analysis module can automatically perform slag particle analysis .

The sensor detection module 150 is used to detect signals including the position of the slag particles and the position of the gripping part of the slag gripping module 110. Wherein, the sensor detection module 150 and the control module 140 can be connected by communication through a signal transmission line, and can also be connected to wireless communication through Bluetooth communication, a wireless communication network, a local area network, etc. The present invention does not limit this.

The control module 140 outputs the slag grasping and slag discharging instructions to the slag grasping module 110 according to the signal detected by the sensor detecting module 150 and the pre-stored filter pool position range, the minimum slag holding height of the protection filter material, the predetermined slag discharging position, etc.

In addition, the control module 140 records the chemical composition analysis results uploaded by the slag particle analysis module, and counts the chemical composition changes of the slag particles based on the uploaded chemical composition analysis results multiple times, and uploads the chemical composition changes of the slag particles to the blast furnace system Central control system.

The slag grasping module 110 is erected on the filter tank 7 for carrying out slag grasping and slag discharging operations according to the slag grasping and slag discharging instructions, so as to move the slag particles in the filter tank to a preset slag discharging position.

It can be known from the above solution that in the intelligent slag grasping device provided by the embodiment of the present invention, the control module controls the movement of the slag grasping module based on the signal collected by the sensor detection module to realize automatic slag grasping and unloading, which can improve the degree of automation and further improve the operation Efficiency, reduce the influence of human factors, accurately control the operation of the grab crane, achieve a complete cleaning of slag particles, avoid damage to the filter material, and prevent spattering during unloading.

In addition, the intelligent slag grasping device provided by the embodiment of the present invention can timely monitor the change of the chemical composition of the slag particles through the slag particle analysis module, and feed back to the central control system of the blast furnace system, which is beneficial to the central control system of the blast furnace system to optimize the blast furnace Fuel quality and ratio, optimize blast furnace operation, promote blast furnace forward, and realize predictive production decisions.

The circuit structure of the intelligent slag grasping device 8 is as follows: the sensor detection module 150 is connected to the control module 140, the control module 140 is connected to the slag grasping module 110, the slag particle analysis module 120 is connected to the control module 140, and the control module 140 is connected to the central control of the blast furnace system System 160. Among them, the connection between the various parts can use transmission line communication connection, can also be connected through a local area network communication.

Of course, the local area network includes but is not limited to: Bluetooth network and wireless communication network. By connecting the modules by wireless connection, the wiring workload can be effectively reduced. Among them, the sensor detection module 150 transmits the detected slag particle position, the position of the grasping part of the slag grasping module 110 and the like to the control module 140, and the control module 140 outputs the slag grasping and unloading instructions to the slag grasping module 110 to further grasp the slag And the slag discharge operation to move the slag particles in the filter tank to the predetermined slag discharge position.

The slag grasping module includes: two rail frames 111 disposed on both sides of the filter tank 7 parallel to each other, a cart operating mechanism 112 spanning the rail frame 111, a cart operating mechanism 113 disposed on the cart operating mechanism 112, The lifting mechanism 114 connected to the lower part of the trolley running mechanism 113 and the gripping portion 115 connected to the bottom of the lifting mechanism 114.

Among them, the truck operating mechanism 112 may include: a running beam, a cart motor, a cart brake, a cart coupling, and a cart wheel 116. The cart beam is horizontally erected between two rail frames, and the cart motor is connected to the cart Couplings, cart couplings connect cart wheels, cart brakes connect cart wheels. The cart wheels 116 are provided under both sides of the running beam, and move along the two rail frames 111. In addition, the cart motor, cart brake, and cart coupling are all connected to the control module 140.

The cart operating mechanism 112 may further include: a reducer, the cart motor is connected to the cart coupling through the reducer, and the reducer is connected to the control module 140. The cart operating mechanism 112 may further include a stroke limiter, which is connected to the control module 140. The travel limiter is used as a travel switch to control the travel of the truck operating mechanism and change the running direction or speed. In addition, the carriage beam is provided with a trolley rail perpendicular to the direction of the rail frame 111, as shown in FIG. 8.

The trolley running mechanism 113 moves along the trolley track, and the movement direction is perpendicular to the direction of movement of the trolley running mechanism 112. Specifically, the trolley running mechanism 113 may include a trolley frame, a trolley motor, a trolley brake, a trolley coupling and a trolley wheel, the trolley motor is connected to the trolley coupling, the trolley coupling is connected to the trolley wheel, and the trolley brake is connected to the trolley wheel . The wheels of the trolley and the connecting structure are arranged on the lower side of the lower frame. In addition, the trolley motor, trolley brake, and trolley coupling are all connected to the control module 140.

The trolley running mechanism 113 may further include: a speed reducer, the trolley motor is connected to the trolley coupling through the speed reducer, and the speed reducer is also connected to the control module 140. The speed reducer can be an independent component composed of a gear drive, a worm drive, and a gear-worm drive enclosed in a rigid housing, which is used to match the rotation speed and transmit torque between the trolley motor and the trolley coupling.

The trolley running mechanism 113 may further include a stroke limiter, which is also connected to the control module 140. The travel limiter acts as a travel switch and is used to control the travel of the trolley running mechanism and change the running direction or speed. The elevating mechanism 114 is connected to the lower portion of the trolley operating mechanism 113 through this connection structure, and the position of the elevating mechanism 114 changes as the location of the trolley operating mechanism changes.

The lifting mechanism 114 is connected to the grasping portion 115 through a steel wire 117, and is used to raise or lower the grasping portion 115. The lifting mechanism 114 may include a motor, a speed reducer, a drum and a brake, wherein the motor is connected to the speed reducer, the speed reducer and the brake are connected to the drum, and the motor, the speed reducer and the brake are all connected to the control module 140. In addition, the motor, speed reducer, and brake are all connected to the control module 140. The speed reducer can be an independent component composed of a gear drive, a worm drive, and a gear-worm drive enclosed in a rigid housing, which is used to match the rotation speed and transmit torque.

The lifting mechanism 114 can be realized by a hoist. The grasping part 115 realizes the operation of grasping and discharging slag through the grasping operation. Wherein, the grabbing part 115 includes: a grab bucket and a transmission module. The grab bucket is connected to the lower end of the lifting mechanism 114 through the transmission module, and the transmission module drives the grab bucket to perform the grabbing action. A shock absorption module is provided in the transmission module. In addition, the sensor detection module 150 detects signals such as the position of the slag particles and the position of the gripping part of the slag gripping module.

The control module 140 controls the movement direction and movement distance of the cart running mechanism 112 and the cart running mechanism 113 according to the position of the slag particles and the position of the gripping portion, so that the gripping portion 115 moves above the position of the slag particles for the subsequent slag catching operation.

After the gripping part 115 moves above the position of the slag particles, the control module 140 controls the lifting mechanism 114 to raise and lower the gripping part 115 according to the height position of the gripping part 115, so that the gripping part 115 descends above the slag particles; When the picking section 115 is located above the slag particles, the control module 140 sends a gripping operation command to the gripping section 115, and the gripping section 115 performs the slag catching operation.

After the grasping part 115 finishes grasping the slag, the control module 140 controls the movement of the lifting mechanism 114 according to the height position of the grasping part, so that the grasping part 115 is raised by a preset distance. Then, the control module 140 controls the movement direction and the movement distance of the cart running mechanism 112 and the cart running mechanism 113 according to the preset slag discharge position 130, so that the gripping part 115 moves above the predetermined slag discharge position 130.

When the gripping part 115 moves above the predetermined slag discharge position 130, the control module 140 controls the movement of the lifting mechanism 114 according to the height position of the gripping part 115, adjusts the height of the gripping part 115, and controls the transmission module of the gripping part 115, Through the action of the transmission module, the grab bucket is tipped or opened to realize the slag discharge operation.

By analyzing the above intelligent slag grasping equipment, it can be known that the control module 140 controls the movement of the cart operating mechanism 112, the trolley operating mechanism 113, the lifting mechanism 114, and the grasping section 115 of the slag module 110 based on the signals collected by the sensor detection module 150 To realize automatic slag catching and unloading.

The circuit structure of the intelligent slag grasping device 8 includes: a sensor detection module 150 connected to a control module 140, and the control module 140 is connected to a cart operating mechanism 112, a trolley operating mechanism 113, a lifting mechanism 114 and a grasping section 115 of the slag grasping module 110, wherein , The connection mode between the modules can use wires for electrical connection.

Of course, the connection mode between the modules can also use a local area network for wireless connection, including but not limited to: Bluetooth connection, wireless communication network connection. By connecting the modules by wireless connection, the wiring workload can be effectively reduced.

Among them, the sensor detection module 150 is used to detect signals such as the position of the slag particles, the position of the grasping portion 115 of the slag grasping module, and the like. The control module 140 controls the actions of the truck operating mechanism 112, the trolley operating mechanism 113, the lifting mechanism 114, and the grasping section 115 according to the signals detected by the sensor detection module 150, to realize automated operations.

The sensor detection module 150 includes a material level scanning sensor 153, a horizontal position sensor 154, and a height sensor 155. The material level scanning sensor 153 is disposed above the filter tank 7 and connected to the control module 140 for detecting the state of the material level of the slag particles 121 in the filter tank 7 and outputting a material level detection signal.

The material level scanning sensor 153 can be installed on the cart running mechanism to perform 3D scanning. Of course, the present invention is not limited to this, as long as it is located above the filter tank and can be completely scanned to the position of the filter tank. Scan the sensor.

The horizontal position sensor 154 is provided on the gripping part 115, or on the trolley running mechanism 113, or on the lifting mechanism 114, and is connected to the control module 140 for detecting the horizontal position of the gripping part 115 and outputting the horizontal position detection signal.

The control module 140 determines the position of the slag particles according to the material level detection signal, and then controls the movement of the cart running mechanism 112 and the trolley running mechanism 113 based on the position of the slag particles and the horizontal position of the gripping section 115 to move the gripping section 115 to the slag position Above.

Among them, the signal is collected by the material level scanning sensor 153 and the horizontal position sensor 154, and the control module 140 performs control based on the collected signal, and can accurately locate the slag particle position, the slag grasping position, and the slag grasping height, to achieve precise slag grasping.

The height sensor 155 may be provided on the gripping part 115, or on the lifting mechanism 114, or on the side wall of the filter tank 7, and is connected to the control module 140 for detecting the height of the gripping part 115 and outputting the height detection signal.

The control module 140 controls the lifting mechanism 114 to raise or lower the gripping portion 115 according to the height detection signal, so that the gripping portion 115 reaches the position above the slag particles 121. Among them, the height information of the grasping part 115 is collected by the height sensor 155, and the control module 140 performs control based on the collected signal, which can accurately locate the height of the slag grasping and realize accurate slag grasping.

The sensor detection module 150 may further include: a weight sensor 156 disposed at the bottom of the filter tank 7 and connected to the control module 140 for detecting the weight of the slag particles 121 in the filter tank 7 and outputting a slag particle weight signal; the control module 140 is based on Slag particle 121 weight signal, real-time statistics of the weight change of the slag particle 121 in the filter pool 7, and calculate the accumulated slag weight, when the accumulated slag weight reaches the preset weight, control the slag module 110 to stop the slag catch operation, and The weight change of slag particles is fed back to the central control system of the blast furnace system, which is beneficial to the central control system of the blast furnace system to optimize the raw fuel quality and proportion of the blast furnace, optimize the blast furnace operation, and promote the blast furnace forward.

When the weight sensor 156 detects the preset value of the weight of the slag particles 121 in the filter tank 7, it sends a signal to the control module 140, and the control module 140 sends a start command to carry out the slag catching operation. The sensor detection module may further include: a torque sensor 157, the torque sensor 157 is disposed on the wire rope 117, and is connected to the control module 140 for monitoring the working state of the lifting mechanism 114 to generate a torque signal; the control module 140 according to the torque signal and The height detection signal controls the work of the lifting mechanism.

It is worth noting that when the gripping part 115 descends to the surface of the liquid water in the filter tank 7, the water faces the gripping part to generate an upward buoyancy, and the torque sensor 157 will feel the buoyancy acting on the wire rope 117, Generate a torque signal, based on the torque signal to reduce the speed of the lifting mechanism 114, so that the speed of the lowering of the gripping portion 115 is reduced, which can prevent the rope of the winch from slack, and avoid the winch from continuing to rotate after the bucket falls on the surface of the slag particles, which causes the rope of the winch Slack off the pulley block of the winch.

The control module is a PLC, in which the position range of the filter tank, the minimum slag limit height for protecting the filter material and the set control program are pre-stored. The slag particle analysis module 120 is a metal in-situ analyzer. Of course, the present invention is not limited thereto, and all instruments capable of analyzing the chemical composition of the slag particles can be used as the slag particle analysis module in the embodiments of the present invention.

The intelligent slag catching device 8 may further include: an alarm connected to the control module, when the weight of the slag particles in the filter pool exceeds a preset threshold or the slag catching module operates abnormally, the control module sends an alarm signal to the alarm, the alarm Sound and light alarm based on the alarm signal, so that the duty personnel can find problems in time and prevent equipment damage.

The intelligent slag catching device provided by the embodiment of the present invention can automatically run according to a preset program, and does not need a person on duty to avoid sulfur-containing steam from harming the health of the operator, and realizes unattended continuous slag catching and unloading operations, reducing man-made Influence of factors, accurately control the operation of the grab crane, achieve a complete cleaning of the slag particles, avoid damage to the filter material, prevent the rope of the hoist from slack, and avoid the hoisting machine from continuing to rotate after the grab falls on the surface of the slag particles, causing the rope of the hoist to slack off the hoist The pulley block can effectively slow the filter material compaction, greatly increase the service life of the filter material in the filter pool, and thus reduce the cost of filter material replacement.

In addition, the intelligent slag grasping device provided by the embodiment of the present invention can timely monitor the change of the chemical composition of the slag particles through the slag particle analysis module, and feed back to the central control system of the blast furnace system, and monitor the weight of the slag particles through the weight sensor. Based on the signal collected by the weight sensor, the control module calculates the weight of the slag and feeds it back to the central control system of the blast furnace system, which is beneficial to the central control system of the blast furnace system to optimize the raw fuel quality and ratio of the blast furnace, optimize the operation of the blast furnace, promote the blast furnace forward, and achieve prediction Production decisions.

The control module or controller described in this application may take the form of an application-specific integrated circuit (Application Specific Integrated Circuit, ASIC), programmable logic controller, and embedded microcontroller. Examples of controllers include but are not limited to the following microcontrollers : ARC625D, Atmel AT91SAM, Microchip PIC18F26K20 and Silicone Labs C8051F320. Those skilled in the art also know that, in addition to implementing the controller in pure computer-readable program code, the method can be logically programmed to make the controller with logic gates, switches, special integrated circuits, programmable logic controllers and embedded The same function is realized in the form of a microcontroller or the like. Therefore, such a controller can be regarded as a hardware component, and the modules included therein for realizing various functions can also be regarded as structures within the hardware component. Or even, the modules for realizing various functions can be regarded as both a software module of an implementation method and a structure within a hardware component.

The following describes the working process of this environmentally friendly energy-saving blast furnace slag intelligent processing system.

A granulator 14 is provided below the entrance of the high-temperature slag (1350°C-1500°C) of the granulation tower 1, the high-temperature slag completes granulation under the action of a large amount of high-speed granulation water, and the slag-water mixture falls into the granulation tower 1 bottom of. The bottom of the granulation tower 1 introduces transport water (about 40°C to 45°C). Under the action of the transport water, the slag water mixture enters the first filtering sub-pool 71 or the second filtering sub-pool 72.

A first steam heat exchanger 13 is provided above the granulator 14 near the top of the granulation tower 1, and a steam pipe and a first induced draft fan 2 are provided on the side of the top of the granulation tower 1. Under the action of the first induced draft fan 2, the steam generated during the granulation of the slag (approximately 80°C to 100°C) moves upward inside the granulation tower 1. When the steam passes through the first steam heat exchanger 13, it is introduced into the first The normal temperature water (about 25°C to 35°C) of a steam heat exchanger 13 absorbs a large amount of heat energy to become hot water (about 60°C to 80°C), and a large amount of steam condenses into water droplets and falls into the bottom of the granulation tower 1 during the heat exchange process. Uncondensed steam enters the chimney 3 from the steam pipe on the top side of the granulation tower 1.

In the chimney 3, a layer (or multi-layer) spray device 17, a demister 16, and a backwash device 15 are sequentially arranged above the outlet of the steam pipe of the granulation tower. The spray device 17 is composed of a plurality of long spray guns 18 and short spray guns 19 uniformly arranged at the same height inside the chimney 3, and a plurality of high-pressure spray heads 20 are evenly arranged on the long spray guns and the short spray guns. According to process requirements, multiple levels of long spray gun 18 and short spray gun 19 and their accompanying high-pressure spray head 20 can be arranged at different levels. The spray water (about 40°C to 45°C) is sprayed from the high-pressure nozzle 20 to form an atomized state inside the chimney, and the atomized spray water evenly covers the interior space of the chimney.

After the uncondensed steam enters the chimney 3, it becomes condensed water under the action of atomized spray water. The condensed water and spray water fall into the bottom of the chimney 3 along the condensed water spray water pipe and enter the cooling tower 11. The demister 16 is provided above the spraying device 17 to eliminate uncondensed steam and small water droplets; the backwashing device 15 regularly backwashes the demister 16 to prevent the demister 16 from being blocked after long-term use.

The slag-water mixture pipe leading from the bottom of the granulation tower 1 is connected to the junction of two filter pool pipes, and the two filter pool pipes enter the two filter pools respectively. Install the first slag-water mixture pipeline valve 61 and the second slag-water mixture pipeline valve 62 on the pipelines entering the two filter tanks. When the first filtration sub-pool 71 is needed, open the first slag-water mixture pipeline valve 61 and close the first Two slag water mixture pipeline valve 62.

A movable steam cover 22 is provided at the top of the filter tank to seal the steam on the surface of the filter pool; after the slag flushing stops, the movable steam cover 22 is removed to facilitate catching the slag. A hole is opened at a position near the top of the side wall of the filter pool near the chimney, and a second induced draft fan 4 is provided outside the opening of the side wall of the filter pool to draw out the steam on the surface of the filter pool. Under the effect of the negative pressure of the second induced draft fan 4 and the sealing of the movable steam cover 22, the steam on the surface of the filter pool is drawn away from the filter pool and enters the second steam heat exchanger 21.

Normal temperature water (about 25℃～35℃) is heated by the second steam heat exchanger 21 and enters the user's pipe network. Most of the steam condenses into water droplets under the action of the heat exchanger and enters the filter pool together with the slag water mixture. The steam enters the chimney 3 without being condensed, and becomes water droplets under the action of the spray device 17 in the chimney, and then falls into the bottom of the chimney 3 and enters the cooling tower 11.

The first hot water heat exchanger 23 and the second hot water heat exchanger 24 are installed in the pump room 10, and the two heat exchangers are connected in series. After high temperature filtered water (about 70℃～90℃) flows out from the bottom of the filter tank Passing through the first hot water heat exchanger 23 and the second hot water heat exchanger 24 in sequence, the heating of normal temperature water is completed during the heat exchange process.

After high-temperature filtered water exchanges heat, it becomes low-temperature filtered water and enters the cooling tower 11. After cooling, it becomes cooling water and enters the storage tank 12. The cooling water of the storage tank can be used as the spray water of the chimney, the granulated water of the granulation tower or the transport water. .

Changes in the blast furnace raw fuel quality and ratio will cause changes in the composition of the blast furnace slag, which in turn will change the quality of the filtered water. At the outlet of the bottom of the filter pool, the water quality of the filtered water flowing out of the filter layer is tested and analyzed, and the temperature and flow rate of the filtered water are detected at the same time, and all the test results are fed back to the blast furnace central control system in time, which is conducive to optimizing the operation of the blast furnace. Promote blast furnace forward.

The intelligent slag grabbing equipment controls the grab crane to carry out the slag grabbing operation, and then unloads the slag particles to the slag truck 9 after grasping the slag.

The intelligent slag grasping equipment can count the weight of the entire filter pool slag particles and analyze the changes in the chemical composition of the slag particles through the slag particle analysis module, monitor the weight and composition of the blast furnace molten slag in time, and feed back to the blast furnace central control system to achieve predictive production decisions To optimize the quality and proportion of blast furnace raw fuel and optimize blast furnace operation.

The hot water (about 60℃～70℃) heated by the steam heat exchanger is widely used. After being introduced into the user's pipe network, it can be used as a bath shower for domestic water systems, heating in winter, and can also be used as a humidification pre-heating material for industrial water systems. Hot etc. The heat energy of the steam in the slag granulation process and the slag flushing water and steam in the filter pool is effectively recovered, which reduces the air discharge of sulfur-containing steam and realizes the steam whitening treatment, which is of great significance for energy saving and emission reduction.

The steam heat exchanger in the invention can also be replaced by a low-energy lithium bromide absorption waste heat refrigerator, with a power of only 5 to 10 kW, using the steam in the granulation slag granulation process and the thermal energy of the slag flushing water and steam in the filter tank. For cooling, the low-temperature cold water (about 5℃～15℃) obtained by the waste heat refrigerator can be sent to the air-conditioning unit as the air-conditioning chilled water, and can also be sent to the corresponding system of the blast furnace (such as the furnace body cooling system) as the chilled water for the production process.

For the waste heat utilization of steam and hot water in the blast furnace slag treatment process, a heat exchanger system and a waste heat refrigeration system can be installed at the same time. The waste heat refrigeration system operates in summer for air conditioning and refrigeration, and the heat exchanger system operates in winter for heating.

The hot water (about 60℃～70℃) heated by the steam heat exchanger is widely used. After being introduced into the user's pipe network, it can be used as a bath shower for domestic water systems, heating in winter, and can also be used as a humidification pre-heating material for industrial water systems. Hot etc. The low-temperature cold water (about 5℃～15℃) obtained by the lithium bromide absorption waste heat refrigerator can be sent to the air-conditioning unit as the air-conditioning chilled water, or it can be sent to the corresponding system of the blast furnace (such as the furnace body cooling system) as the chilled water for the production process .

The present invention has the following advantages: full use of steam in the granulation tower, slag flushing water and steam in the filter pool, to achieve effective recycling of energy; reduce the discharge of sulfur-containing steam in the filter tank to achieve whitening treatment, reduce air pollution; filter water The temperature is reduced after being processed by the waste heat refrigerator, which can reduce the workload of the cooling tower and achieve efficient cooling. The use of non-energy-consuming heat exchangers or low-energy lithium bromide absorption waste heat refrigerators has the advantages of low operating costs and high benefits.

The invention detects and analyzes the water quality of the filtered water, simultaneously detects the temperature and flow rate of the filtered water, and feeds back all the detection results to the blast furnace central control system in time, which plays an important role in optimizing and optimizing the blast furnace operation and promoting the blast furnace forward. The invention can timely monitor the weight and composition of the blast furnace slag and feed it back to the blast furnace central control system to realize predictive production decisions, optimize the blast furnace raw fuel quality and ratio, and optimize the blast furnace operation.

The above are only specific embodiments of the present invention, which cannot be used to limit the scope of the invention, so the replacement of equivalent components, or equivalent changes and modifications made according to the scope of protection of the patent of the present invention, should still fall within the scope of this patent. Category. In addition, technical features and technical features in the present invention, technical features and technical inventions, and technical inventions and technical inventions can be freely combined and used.

Claims (10)

1. An environmentally friendly energy-saving blast furnace slag slag intelligent processing system, characterized in that the environmentally-friendly energy-saving blast furnace slag slag intelligent processing system includes a granulation tower (1), a chimney (3), a filter tank (7), and hot water heat exchange Unit, cooling tower (11), storage tank (12), slag transport vehicle (9) and intelligent slag handling equipment (8), granulation tower (1) through the slag water mixture pipeline (41) and the filter tank (7) ) Connection, the granulation tower (1) is connected to the chimney (3) through a steam pipe (39), the filter tank (7) is connected to the chimney (3) through a steam heat exchange line (40), and the chimney (3) is drained The pipeline (42) is connected to the cooling tower (11), the filter tank (7), the hot water heat exchange unit, the cooling tower (11) and the storage tank (12) are connected in series in sequence, and the intelligent slag handling equipment (8) can Grab the water residue in the filter tank (7).
2. The environmentally friendly energy-saving blast furnace slag slag processing system according to claim 1, characterized in that the granulation tower (1) is provided with a granulator (14) and a first steam heat exchanger (13), a granulator (14) Located below the high temperature slag inlet of the granulation tower (1), the first steam heat exchanger (13) is located above the granulation tower (1), and the high temperature slag inlet of the granulation tower (1) is located at Between a steam heat exchanger (13) and a granulator (14).
3. The environmentally friendly energy-saving blast furnace slag slag processing system according to claim 1, characterized in that a spray device (17), a demister (16) and a backwashing device (17) are provided in the chimney (3) in this order from bottom to top 15), the connection between the steam pipe (39) and the chimney (3) is located below the spraying device (17), the spraying device (17) contains long spray guns (18) arranged uniformly and alternately along the circumferential direction of the chimney (3) A plurality of high-pressure spray heads (20) are evenly arranged on the short spray gun (19), the long spray gun (18) and the short spray gun (19).
4. The environmentally friendly energy-saving blast furnace slag slag processing system according to claim 1, characterized in that the filter tank (7) includes a first filter sub-pool (71) and a second filter sub-pool (72) arranged side by side in parallel ), a movable steam cover (22) is provided on the top of the filter tank (7), and the movable steam cover (22) can seal the first filter sub-pool (71) or the second filter sub-pool (72).
5. The environmentally friendly energy-saving blast furnace slag slag processing system according to claim 4, characterized in that the high-temperature steam discharged from the first filter sub-pool (71) or the second filter sub-pool (72) can enter the second steam heat exchanger (21) Medium heat release, the high temperature steam can enter the chimney (3) after heat release, the second steam heat exchanger (21) is connected to the first heat exchange line, the first exchange in the first heat exchange line The heat medium can absorb heat in the second steam heat exchanger (21) and enter the user pipe network (43) after the heat absorption.
6. The environmentally friendly energy-saving blast furnace slag slag processing system according to claim 1, characterized in that the hot water heat exchange unit contains a first hot water heat exchanger (23) and a second hot water heat exchanger (24) , The first hot water heat exchanger (23) and the second hot water heat exchanger (24) are arranged in series or parallel, the first hot water heat exchanger (23) and the second hot water heat exchanger (24) are both set In the pump room (10), the pump room (10) is located between the filter tank (7) and the storage tank (45).
7. The environmentally friendly energy-saving blast furnace slag slag processing system according to claim 6, characterized in that the high-temperature filtered water flowing out of the filter tank (7) can be exchanged between the first hot water heat exchanger (23) and the second hot water Heat is released in the heat exchanger (24), the first hot water heat exchanger (23) and the second hot water heat exchanger (24) are connected with a second heat exchange line, the second heat exchange in the second heat exchange line The medium can absorb heat in the first hot water heat exchanger (23) and the second hot water heat exchanger (24) and enter the user pipe network (43) after absorbing the heat.
8. The environmentally friendly energy-saving blast furnace slag slag processing system according to claim 1, characterized in that the intelligent slag grasping device (8) includes: a sensor detection module, a control module connected to the sensor detection module, and the control module Connected slag grasping module and slag particle analysis module;

   The slag particle analysis module is used to analyze the chemical composition of the slag particles, and transmit the analysis result to the control module;

   The sensor detection module is used to detect signals including the position of the slag particles and the position of the gripping part of the slag gripping module;

   The control module outputs slag grasping and slag discharging instructions to the slag grasping module according to the signal detected by the sensor detection module, and statistically changes the chemical composition of slag particles according to the analysis result and uploads to the blast furnace system Central control system;

   The slag grasping module is erected on the filter pool and is used for carrying out slag grasping and slag discharging operations according to the slag grasping and slag discharging instructions.
9. The environmentally friendly energy-saving blast furnace slag slag processing system according to claim 8, characterized in that the slag grasping module includes: two rail racks disposed on both sides of the filter tank and parallel to each other, spanning the A cart operating mechanism on the rail frame, a cart operating mechanism provided on the cart operating mechanism, a lifting mechanism connected to the lower portion of the cart operating mechanism, and the grabbing portion connected to the bottom of the lifting mechanism;

   The cart running mechanism moves along two of the track frames, and a cart track perpendicular to the track frames is provided on the track frame;

   The lifting mechanism is used to raise or lower the grabbing section;

   The grasping part realizes the operation of grasping slag and discharging slag through the grasping action.
10. The environmentally friendly energy-saving blast furnace slag intelligent processing system according to claim 9, wherein the sensor detection module includes:

    The material level scanning sensor is connected to the control module and is used for detecting the state of the material level of the slag particles in the filter tank and outputting the material level detection signal;

    A horizontal position sensor, connected to the control module, is used to detect the horizontal position of the gripping part and output a horizontal position detection signal;

    A height sensor, connected to the control module, is used to detect the height of the gripping part and output a height detection signal;

    A weight sensor, connected to the control module, is used to detect the weight of the slag particles in the filter tank and output a slag particle weight signal;

    Wherein, the control module determines the position of slag particles according to the material level detection signal;

    The control module controls the movement of the cart operating mechanism and the cart operating mechanism according to the horizontal position detection signal, so that the gripping section is operated to the slag particle position or a predetermined slag discharge position;

    The control module controls the lifting mechanism to raise or lower the gripping portion according to the height detection signal;

    The control module statistically calculates the slag weight change in the filter tank in real time according to the slag particle weight signal, and calculates the cumulative slag catch weight, and controls the slag catch when the cumulative slag catch weight reaches a preset weight The module stops the slag catching operation, and feeds back the slag particle weight change to the central control system of the blast furnace system.

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