KR102430933B1 - Eco-friendly energy-saving intelligent blast furnace slag treatment system - Google Patents

Abstract

The present invention discloses an eco-friendly, energy-saving intelligent blast furnace slag treatment system, including a granulation tower (1), a chimney (3), a filter tank (7), a hot water heat exchange unit, a cooling tower (11), a water storage tank (12), slag a transport vehicle (9) and an intelligent slag grabbing device (8), wherein the filter tank (7), the hot water heat exchange unit, the cooling tower (11) and the water storage tank (12) are sequentially connected in series, and the intelligent slag The grabbing device 8 can grab the water slag in the filter tank 7 . The eco-friendly energy-saving intelligent blast furnace slag treatment system can not only sufficiently recover the steam heat energy of the granulation process, but also recover the heat energy of the slag washing water and steam in the filter tank, and at the same time reduce the work load of the cooling tower. De-whitening treatment is possible by reducing the emission of sulfur-containing vapors according to the slag treatment process, and can actually save energy and reduce the emission of waste gas, and realize effective circulation use of energy, intelligent slag Intelligent slag grabbing and unloading of slag particles in the filter tank can be performed through the grabbing device.

Description

Eco-friendly energy-saving intelligent blast furnace slag treatment system

The present invention relates to the metallurgical industry, and more particularly, to an eco-friendly, energy-saving intelligent blast furnace slag treatment system.

During blast furnace smelting, high-temperature liquid slag (1350℃-1500℃) is generated, and 700 million tons of molten iron is produced in Korea every year, and 250 million tons of high-temperature liquid slag is generated. Therefore, research on the recovery and utilization of residual heat by using sufficient amount of heat from blast furnace slag has been conducted for several years at home and abroad.

Chinese patent CN106282445B (published on January 4, 2017) discloses “a blast furnace slag residual heat recovery device and recovery method”. A mixture of solid state of slag and metal balls is obtained, and the mixture is separated from breakage and residual heat is recovered by a rotating metal cage. of the solid state mixture is broken and separated in the rotating metal cage, and the wear on the metal cage at high temperature is very large, and it has a great influence on the lifespan of the device and the operation rate of the entire system.

At home and abroad, slag is generally treated by sedimentation filtration (generally referred to as bottom filtration) water slag process. Punching slag by hydraulic power in front of the blast furnace, pulverizing the slag through water quenching to form a mixture of slag and water (generally referred to as water slag), and the water slag flows into the filter tank through the slag washing wastewater and liquid water is filtered through the filter layer in the filter tank, wet slag particles in a solid state remain on the bottom of the filter tank, and the slag particles are grabbed using a bridge-type grab crane and loaded and transported in a car. The slag particles (particle diameter 0.2mm ~ 3mm) obtained through water quenching have a wide range of uses, and are used as cement materials, insulating fillers, etc., so that slag can be sufficiently used.

Blast furnace slag washing water (about 70°C to 90°C) is a low-temperature waste heat source, and has a stable temperature and a large flow rate. Regarding the use of residual heat of slag washing water, Chinese patent CN207585372U (published on July 6, 2018) discloses "a system for using residual heat of blast furnace slag washing water", in which the slag washing water is circulated through a lifting pump and a discharge pipe. Guided to the tank, the circulation tank is connected to the heating pump, the outlet of the heating pump is connected to the water pipe for the sinter mixture through the water supply pipe, the circulation tank can be connected to the concentrated salt water discharge pipe of the power plant through the first pipe, passing through the heat exchanger After that, after using the residual heat of the excess water sufficiently, it can be put into the circulation tank and used for circulation. The system guides the slag washing water from the water tank to the circulation tank and then uses the residual heat again by other measures, so that a large amount of heat is lost, which is disadvantageous in recovering the thermal energy of the slag washing water.

Chinese patent CN207121610U (published on March 20, 2018) discloses a "blast furnace slag washing water vapor residual heat recovery and utilization system", wherein the system collects slag washing water vapor using an air suction device and then passes through a steam reheating device. It is transported to the steam regenerator, lithium bromide cooling water assembly, and finally the steam is condensed into condensed water to produce cooling water. The system is based on the existing water slag system and separately installs a large amount of equipment such as an air intake device, a steam reheater, a steam regenerator, a gas-liquid heat exchanger, etc. The system has a complicated process and high equipment investment. In the above system, not only a large amount of slag washing water (about 70° C. to 90° C.), but also slag particles generated after water quenching of the slag can be introduced into the slag washing water circulation tank, and also some steam (about 60° C. to 100° C.) is not collected by the air intake cover, but flows into the circulation tank along the pipe, so that the heat quantity of the slag washing water and steam in the circulation tank cannot be sufficiently recovered and used.

)에 의해 완성되는데, 슬래그 세척수(약 70℃ ~ 90℃)에 의해 냉각된 후에야 사용될 수 있으며, 상기 방법에 있어서 슬래그 세척수는 필터 파이프를 경유한 후에 업 타워 펌프에 의해 직접 냉각 타워에 투입되어 냉각됨으로써, 슬래그 세척수의 열에너지를 낭비할뿐만아니라, 냉각 타워의 작업 부하를 증가하게 된다.Chinese patent CN101265039B (published on September 17, 2008) discloses "a blast furnace slag treatment apparatus and treatment method by an eco-friendly bottom filtration method", which reduces the amount of slag washing water and reduces water consumption. , it can increase the filtration speed and reduce the installation area of the filter tank, and the technology has been applied for many years and has achieved good effects. Water quenching of hot liquid slag is carried out with circulating water (about 40

), which can be used only after being cooled by slag washing water (about 70° C. to 90° C.), and in the above method, the slag washing water is fed directly into the cooling tower by an up-tower pump after passing through a filter pipe and cooled This not only wastes thermal energy of the slag washing water, but also increases the working load of the cooling tower.

As can be seen from the above, according to the prior art, although a method for recovering thermal energy of a filter tank of a blast furnace water slag system has been disclosed, there are various defects in different degrees and in different aspects. There is a need to study a method for recovering thermal energy of a filter tank of a water slag system, and to reduce air pollution by effectively circulating and using energy.

In the blast furnace slag treatment process, there is not only a large amount of high-temperature steam according to the granulation process, but also slag washing water with a stable temperature and a large flow rate in the filter tank. There is also a bar, recovering the thermal energy of the slag washing water and steam and reducing the sulfur-containing steam discharged to the air has a great meaning in energy saving.

In order to recover the thermal energy in the blast furnace water slag, the eco-friendly, energy-saving intelligent blast furnace slag treatment system according to the present invention can sufficiently recover the steam heat energy of the granulation process, as well as the heat energy of the slag washing water and steam in the filter tank. can be recovered and the work load of the cooling tower can be reduced, and de-whitening treatment is possible by reducing the emission of sulfur-containing vapors according to the slag treatment process, which actually saves energy and waste gas. It is possible to reduce the emission of slag and realize effective circulation use of energy, and intelligent slag grabbing and unloading of the slag particles in the filter tank can be performed through the intelligent slag grabbing machine.

The technical invention employed in the present invention to solve the technical problem is an eco-friendly, energy-saving intelligent blast furnace slag treatment system, including a granulation tower, chimney, filter tank, hot water heat exchange unit, cooling tower, water storage tank, slag carrier and intelligent slag a grabbing device, wherein the granulation tower is connected with the filter tank through a slag mixture pipe, the granulation tower is connected with the chimney through a steam pipe, the filter tank is connected with the chimney through a steam heat exchange pipeline, and , the chimney is connected to the cooling tower through a drain pipe, the filter tank, the hot water heat exchange unit, the cooling tower and the water storage tank are sequentially connected in series, and the intelligent slag grabbing device grabs the water slag in the filter tank.

A granulator and a first steam heat exchanger are installed in the granulation tower, the granulator is located below the hot slag inlet of the granulation tower, the first steam heat exchanger is located above the granulation tower, and the hot slag inlet of the granulation tower is located between the first steam heat exchanger and the granulator.

In the chimney, a spray device, a demister and a backwash device are sequentially installed from bottom to top, and the connection point between the steam pipe and the chimney is located below the spray device, and the spray device is uniformly alternated along the circumferential direction of the chimney. A long spray gun and a short spray gun are arranged, and a plurality of high-pressure nozzles are uniformly arranged in the long spray gun and the short spray gun.

The filter tank includes a first filtration sub-tank and a second filtration sub-tank installed adjacent to each other in parallel, and a movable vapor cover is installed at the top of the filter tank, and the movable vapor cover is the first filtration sub-tank or the second filtration sub-tank. The filtration sub-tank can be sealed.

The high-temperature steam discharged from the first filtration sub-tank or the second filtration sub-tank flows into the second steam heat exchanger to dissipate heat, and the high-temperature steam may flow into the chimney after dissipation of heat, and the second steam heat exchanger has a first heat exchange pipe The line is connected, and the first heat exchange medium in the first heat exchange pipeline flows into the user pipe network after absorbing heat in the second steam heat exchanger.

The hot water heat exchange unit includes a first hot water heat exchanger and a second hot water heat exchanger, the first hot water heat exchanger is installed in series or parallel with the second hot water heat exchanger, and both the first hot water heat exchanger and the second hot water heat exchanger are water pumps. It is installed indoors, and the water pump room is located between the filter tank and the water storage tank.

The high-temperature filtered water flowing out of the filter tank radiates heat from the first hot water heat exchanger and the second hot water heat exchanger, and a second heat exchange pipeline is connected to the first hot water heat exchanger and the second hot water heat exchanger, and in the second heat exchange pipeline The second heat exchange medium flows into the user pipe network after absorbing heat from the first hot water heat exchanger and the second hot water heat exchanger.

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

The slag particle analysis module analyzes the chemical composition of the slag particles, and transmits the analysis result to the control module,

The sensor detection module detects a signal including the position of the slag particle, the position of the grabbing portion of the slag grabbing module,

The control module outputs slag grabbing and slag unloading commands to the slag grabbing module based on the signal detected by the sensor detection module, and based on the analysis result, stats the change in chemical composition of the slag particles. Upload to the central control system of the blast furnace system,

The slag grabbing module is installed on the filter tank, and performs slag grabbing and slag unloading operations based on the slag grabbing and slag unloading commands.

The slag grabbing module includes two track frames parallel to each other installed on both sides of the filter tank, a cart operating mechanism crossing the track frame, a trolley operating mechanism installed on the cart operating mechanism, and a lower portion of the trolley operating mechanism. It includes a connecting lifting mechanism and the grabbing portion connected to the bottom surface of the lifting mechanism,

The cart operating mechanism moves along the two track frames, on which a trolley track perpendicular to the track frame is installed;

The lifting mechanism raises or lowers the grabbing portion,

The grabbing unit performs slag grabbing and slag unloading by a grabbing operation.

The sensor detection module,

a material surface scan sensor connected to the control module, detecting a material surface state of slag particles in the filter tank and outputting a material surface detection signal;

a horizontal position sensor connected to the control module and configured to detect a horizontal position of the grabbing unit and output a horizontal position detection signal;

A height sensor connected to the control module and outputting a height detection signal by detecting the height of the grabbing part; And

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

including,

Among them, the control module detects the position of the slag particle based on the material surface detection signal,

The control module operates the grabbing unit to the slag particle position or a predetermined slag unloading position by controlling the movements of the cart operating mechanism and the trolley operating mechanism based on the horizontal position detection signal,

The control module controls the lifting mechanism to raise or lower the grabbing unit based on the height detection signal,

The control module stats the change in the slag particle weight in the filter tank in real time based on the slag particle weight signal, calculates the slag grabbing total weight, and when the slag grabbing total weight reaches a predetermined weight, The slag grabbing module is controlled to stop the slag grabbing operation, and the change in the slag particle weight is fed back to the central control system of the blast furnace system.

[Effects of the Invention]

1. The present invention recovers the thermal energy of the steam of the slag treatment process and the slag washing water in the filter tank, so that the energy can be effectively recycled.

2. The present invention can reduce the emission of sulfur-containing vapors and reduce air pollution due to slag treatment by submitting steam treatment measures of first heat exchange and then spraying.

3. After the high-temperature filtered water is treated by the heat exchanger, the temperature drops, which can reduce the working load of the cooling tower, and can be effectively cooled.

4. The present invention has the advantage of lowering operating cost and high efficiency by using a non-powered heat exchanger.

5. The present invention detects and analyzes the water quality of the filtered water, 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 a timely manner, thereby optimizing the quality and mixing ratio of the blast furnace raw materials, the blast furnace operation, and the blast furnace It plays an important role in promoting the smooth operation of

6. The present invention monitors the blast furnace slag weight and composition in a timely manner and feeds it back to the blast furnace central control system to carry out a planned production decision, thereby optimizing the blast furnace raw material quality and mixing ratio and optimizing the blast furnace operation.

It should be noted that the drawings, which are part of the present application, are provided to aid understanding of the present invention, and schematic examples and descriptions of the present invention are for interpreting the present invention, and the present invention is not limited thereto. will be.
1 is a plan view of an eco-friendly, energy-saving intelligent blast furnace slag treatment system according to the present invention.
2 is a schematic perspective view of an eco-friendly energy-saving intelligent blast furnace slag treatment system according to the present invention.
3 is a structural schematic diagram of a granulation tower.
4 is a structural schematic diagram of the chimney.
5 is a plan view of the spray apparatus.
6 is a structural schematic diagram of a filter tank, a water pump room, a cooling tower and a water storage tank.
7 is an overall circuit schematic diagram of the intelligent slag grabbing device.
8 is a schematic diagram of the mechanical structure of the intelligent slag grabbing machine.
9 is a detailed circuit schematic diagram of the intelligent slag grabbing machine.

In the present invention, as long as there is no contradiction, the embodiments of the present application and features in the embodiments can be used in combination with each other. Hereinafter, the present embodiment will be described in more detail with reference to the accompanying drawings.

1 to 6 , an eco-friendly energy-saving intelligent blast furnace slag treatment system includes a granulation tower 1, a chimney 3, a filter tank 7, a hot water heat exchange unit, a cooling tower 11, and a water storage tank. 12, a slag truck 9 and an intelligent slag grabbing device 8, wherein the granulation tower 1 is connected with the filter tank 7 through the slag mixture pipe 41, and 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 pipeline 40, and the chimney 3 is connected to a drain pipe ( 42) connected to the cooling tower 11, and the filter tank 7, the hot water heat exchange unit, the cooling tower 11 and the water storage tank 12 are sequentially connected in series, and the intelligent slag grabbing device 8 ) is used to grab the water slag in the filter tank 7 , and the slag transport vehicle 9 is used to transport the water slag grabbed by the intelligent slag grabbing device 8 .

In this embodiment, a granulator 14 and a first steam heat exchanger 13 are installed in the granulation tower 1, and the granulator 14 is located below the high-temperature slag inlet of the granulation tower 1 , the first steam heat exchanger 13 is located at the top of the granulation tower 1 , and the hot slag inlet of the granulation tower 1 is between the first steam heat exchanger 13 and the granulator 14 . located in The granulator is located below the granulation tower hot slag inlet, and the steam heat exchanger is installed close to the top of the granulation tower from above the granulator.

In this embodiment, the lower part of the granulation tower 1 is connected with the filter tank 7 through a slag mixture pipe 41 , and the upper part of the granulation tower 1 is chimneyed through a steam pipe 39 . It is connected to (3), and a first induced draft fan (2) is installed on the steam pipe (39), and the connection portion between the steam pipe (39) and the granulation tower (1) is the first steam heat exchanger (13). located above Uncondensed steam in the granulation tower is led to the chimney by an induced draft fan in the steam pipe on the top side of the granulation tower.

In this embodiment, as shown in Fig. 5, in the chimney 3, the spray device 17, the demister 16 and the backwash device 15 are sequentially installed from bottom to top, and the steam pipe ( 39) and the connection part of the chimney 3 are located below the spray device 17, and the spray device 17 is installed in a single layer or multiple layers, and the connection part between the steam heat exchange pipeline 40 and the chimney 3 Also located below the spray device 17, the spray device 17 includes a long spray gun 18 and a short spray gun 19 that are uniformly alternately arranged along the circumferential direction of the chimney 3, A plurality of high-pressure nozzles 20 may be installed in the long spray gun 18 and the short spray gun 19 .

In the present embodiment, the filter tank 7 includes a first filtration sub-tank 71 and a second filtration sub-tank 72 installed adjacent to each other in parallel (in the vertical direction in FIG. 1 ), and the filter tank 7 ) is provided with a movable vapor cover 22, and the movable vapor cover 22 is movable between the top of the first filtration sub-tank 71 and the second filtration sub-tank 72, so that the movable vapor cover 22 is movable. The first filtration sub-tank 71 or the second filtration sub-tank 72 can be sealed by the vapor cover 22 . When cleaning the slag, the movable vapor cover seals the first filtration sub-tank 71 or the second filtration sub-tank 72, thereby avoiding the release of sulfur-containing vapors into the air and removing the vapor cover after stopping the slag cleaning. The slag grabbing operation to clean the slag particles in the filter tank can be carried out easily.

In this embodiment, the lower part of the chimney 3 is connected to the cooling tower 11 through the drain pipe 42 , and the upper part of the first filtration sub-tank 71 and the second filtration sub-tank 72 is both steam An outlet is installed, and the vapor outlet is connected to a steam heat exchange pipeline 40 , and a second steam heat exchanger 21 and a second induction ventilation fan 4 are installed on the steam heat exchange pipeline 40 . 1, a first slag mixture pipe valve 61 and a second slag mixture pipe valve 62 are installed on the slag mixture pipe 41, and a first filter tank on the steam heat exchange pipeline 40 A vapor pipe valve 51 and a second filter tank vapor pipe valve 52 are installed. The second induced draft fan 4 suctions and separates the vapor on the surface of the filter tank material, and then flows into the second vapor heat exchanger 21 .

In this embodiment, the high-temperature steam discharged from the first filtration sub-tank 71 or the second filtration sub-tank 72 flows into the second steam heat exchanger 21 to dissipate heat, and the high-temperature steam is discharged after heat dissipation. It flows into the chimney 3, and a first heat exchange pipeline is connected to the second steam heat exchanger 21, and the first heat exchange medium (eg room temperature water or other medium) in the first heat exchange pipeline is connected to the second steam heat exchanger. In (21), heat is absorbed, and after heat absorption, it flows into the user pipe 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, and the first hot water heat exchanger 23 and the second hot water heat exchanger 24 are Installed in series or in parallel (eg, installed in series in FIG. 6 ), the first hot water heat exchanger 23 and the second hot water heat exchanger 24 are both installed in the pump chamber 10 , and the pump chamber 10 is a filter tank It is located between (7) and the water storage tank (12).

In this embodiment, the high-temperature filtered water flowing from the filter tank 7 radiates heat between 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 hot water heat exchanger 23 The heat exchanger 24 is connected to the second heat exchange pipeline, and the second heat exchange medium (room temperature water or other medium) in the second heat exchange pipeline is the first hot water heat exchanger 23 and the second hot water heat exchanger 24 . After absorbing heat in the , it flows into the user pipe network 43 . The high-temperature filtered water flows out from the bottom of the filter tank and sequentially passes through a plurality of hot water heat exchangers to heat the medium to be heated (room temperature water or other medium) during the heat exchange process, and the room temperature water (or other medium to be heated) is used to heat the hot water heat exchanger in the water pump room. After being heated, it flows into the user pipe network.

In this embodiment, the cooling tower 11 is located above the water storage tank 12 , the water discharged from the cooling tower 11 flows into the water storage tank 12 , and the water storage tank 12 has an inlet pipe It is connected to the granulation tower 1 and the chimney 3 through the filter tank 7, and a filtered water detection and analysis unit is connected to the outside of the bottom outlet of the filter tank 7, and the filtered water detection and analysis unit detects the water quality, temperature and flow rate of the filtered water, , a first residual heat cooler is installed on the steam heat exchange pipeline 40, a second residual heat cooler is installed in the granulation tower 1, and the eco-friendly energy-saving intelligent blast furnace slag treatment system is a slag transporter 9. include more

The temperature of the high-temperature filtered water is lowered under the action of the heat exchanger (the first hot water heat exchanger 23 and the second hot water heat exchanger 24) to produce low-temperature filtered water, and the low-temperature filtered water flows into the cooling tower and is cooled, then the storage tank The filtered water can be circulated and stored as low-temperature slag washing water, transport water, and spray water.

An intelligent slag grabbing device 8 is installed above the filter tank, and a slag truck is stopped on the side of the filter tank. 7, 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, and the central control system receives a signal from the sensor system. Afterwards, the grab crane is controlled to perform the slag grabbing operation through the control device, and the slag particles are unloaded into the slag truck after slag grabbing.

At the bottom outlet side of the filter tank, the water quality of the filtered water is detected and analyzed, and the temperature and flow rate of the filtered water are detected, and all detection results are fed back to the blast furnace central control system in a timely manner to optimize the blast furnace operation and ensure smooth operation of the blast furnace. promotes operation; The system stats the slag particle weight of the entire filter tank through the slag particle analysis module, analyzes the slag particle chemical composition change situation, monitors the blast furnace slag weight and composition in a timely manner, and feeds it back to the blast furnace central control system, planning By realizing the optimal production strategy, the blast furnace raw material quality and mixing ratio are optimized, and the blast furnace operation is optimized.

By replacing the heat exchanger by a residual heat cooler (ie replacing the second steam heat exchanger 21 by a first residual heat cooler, the first hot water heat exchanger 23 and the second hot water heat exchanger 24 by a second residual heat cooler ) can be used instead of the residual heat of steam and hot water during the slag treatment process The heat exchanger system is operated to perform heating.

Hereinafter, the intelligent slag grabbing apparatus 8 according to the present invention will be described in detail.

7, 8 and 9, the intelligent slag grabbing device is a sensor detection module 150, a control module 140 connected to the sensor detection module 150, and slag connected to the control module 140 It includes a grabbing module 110 and a slag particle analysis module 120 .

The slag particle analysis module 120 analyzes the chemical composition of the slag particles, and transmits the analysis result to the control module 140 . Among them, the slag particle analysis module 120 and the control module 140 communicate through a signal transmission line and perform a wireless communication connection through Bluetooth communication or a wireless communication network or wireless LAN, and the present invention is limited thereto. doesn't happen

Meanwhile, the slag particle analysis module 120 may be installed at a slag unloading position, and a money plater (manipulator) cooperating therewith may be installed. After unloading the slag by the slag grabbing module, the money plater grabs the slag particles and transfers them as slag particle samples to the sample placement position of the slag particle analysis module. Among them, the money plater is installed to grab a slag particle sample once at a predetermined time interval, receives a detection command through a signal line or wireless communication method, and grabs the slag particle sample according to the detection command, Let the slag particle analysis module automatically perform slag particle analysis.

The sensor detection module 150 detects a signal including the position of the slag particle and the position of the grabbing portion of the slag grabbing module 110 . Among them, the sensor detection module 150 may be communicatively connected with the control module 140 through a signal transmission line, and may be connected through Bluetooth communication or wireless communication network or wireless LAN, etc., but the present invention is not limited thereto. does not

The control module 140 protects the lowest slag grabbing limit height of the filter medium, a predetermined slag unloading position, etc., based on the signal detected by the sensor detection module 150 and the filter tank position range stored in advance, and slag grabbing Outputs slag grabbing and slag unloading commands to the module 110 .

On the other hand, the control module 140 records the chemical composition analysis result uploaded by the slag particle analysis module, and analyzes the chemical composition change situation of the slag particle based on the chemical component analysis result uploaded multiple times, Upload the composition change status to the central control system of the blast furnace system.

The slag grabbing module 110 is erected on the filter tank 7, and performs slag grabbing and slag unloading operations based on the slag grabbing and slag unloading commands, thereby removing the slag particles in the filter tank to a predetermined value. Transfer to the slag unloading position.

As can be seen from the above description, the intelligent slag grabbing device and control module according to the embodiment of the present invention control the operation of the slag grabbing module based on the signal collected by the sensor detection module, and automatically By realizing slag grabbing and slag unloading, the degree of automation is improved to increase the work efficiency, and the grab crane operation is precisely controlled by reducing the influence of human factors, thereby thoroughly cleaning the slag particles and avoiding the destruction of the filter medium. In addition, it is possible to prevent material from spilling during material unloading.

On the other hand, the intelligent slag grabbing device according to the embodiment of the present invention monitors the chemical composition change of the slag particles through the slag particle analysis module and feeds it back to the central control system of the blast furnace system, according to the central control system of the blast furnace system. It is advantageous for the optimization of the raw material quality and mixing ratio of the blast furnace, it is advantageous for the optimization of the operation of the blast furnace, and it can promote the smooth operation of the blast furnace and realize the planned production decision.

In the circuit structure of the intelligent slag grabbing device 8 , the sensor detection module 150 is connected to the control module 140 , the control module 140 is connected to the slag grabbing module 110 , and the slag particles The analysis module 120 is connected to the control module 140 , and the control module 140 is connected to the central control system 160 of the blast furnace system. Among them, the connection method between the respective parts may be connected through a transmission line or may be connected through wireless LAN communication.

Of course, the wireless LAN includes, but is not limited to, a Bluetooth network and a wireless communication network. Since the modules are connected by a wireless connection method, it is possible to effectively reduce the amount of wiring work. Among them, the sensor detection module 150 transmits signals such as the detected slag particle position and the position of the grabbing part of the slag grabbing module 110 to the control module 140, and the control module 140 is the slag grabbing module ( 110) by outputting the slag grabbing and slag unloading command to perform the slag grabbing and slag unloading operation, thereby transferring the slag particles in the filter tank to a predetermined slag unloading position.

The slag grabbing module is installed on both sides of the filter tank 7 and installed on two track frames 111 parallel to each other, a cart operating mechanism 112 across the track frame 111, and a cart operating mechanism 112 It includes a trolley operating mechanism 113 , a lifting mechanism 114 connected to the lower portion of the trolley operating mechanism 113 , and a grabbing unit 115 connected to the bottom surface of the lifting mechanism 114 .

Among them, the cart operating mechanism 112 includes a travel beam, a cart motor, a cart brake, a cart coupler, and a cart wheel 116, the travel beam is installed horizontally between two track frames, and the cart The motor is coupled to the cart coupler, the cart coupler is coupled to the cart wheel, and the cart brake is coupled to the cart wheel. The cart wheel 116 is installed on both sides of the lower side of the travel beam, and moves along the two track frames 111 . Meanwhile, the cart motor, cart brake, and cart coupler are all connected to the control module 140 .

The cart operation mechanism 112 further includes a reducer, the cart motor is connected to the cart coupler through the reducer, and the reducer is connected to the control module 140 . The cart operation mechanism 112 further includes a travel limiter connected to the control module (140). The travel limiter controls the travel of the cart operating mechanism as a travel switch, and changes the traveling direction or speed. Meanwhile, as shown in FIG. 8 , a trolley track perpendicular to the direction of the track frame 111 is installed on the travel beam.

The trolley operating mechanism 113 moves along the trolley track, and the movement direction is perpendicular to the movement direction of the cart operation mechanism 112 . Specifically, the trolley operating mechanism 113 includes a trolley frame, a trolley motor, a trolley brake, a trolley coupler and a trolley wheel, the trolley motor is connected to the trolley coupler, the trolley coupler is connected to the trolley wheel, and the trolley brake is It is connected to the trolley wheel. A trolley wheel and a connecting structure are installed on the lower side of the lower frame. Meanwhile, the trolley motor, the trolley brake, and the trolley coupler are all connected to the control module 140 .

The trolley driving mechanism 113 further includes a reducer, the trolley motor is connected to the trolley coupler through the reducer, and the reducer is also connected to the control module 140 . The speed reducer is implemented by an independent member constituted by a gear transmission, a worm transmission, and a gear-worm transmission sealed in a rigid case, and is installed to match the rotational speed and transmit torque between the trolley motor and the trolley coupler.

The trolley driving mechanism 113 further includes a travel limiter, and the travel limiter is also connected to the control module 140 . The travel limiter is a travel switch, and controls the travel of the trolley operating mechanism, and converts the traveling direction or speed. The hoisting mechanism 114 is connected to the lower portion of the trolley operating mechanism 113 through the connection structure, and the position of the hoisting mechanism 114 is changed according to the position of the trolley operating mechanism.

The lifting mechanism 114 is connected to the grabbing part 115 through the steel wire rope 117 to raise or lower the grabbing part 115 . The lifting mechanism 114 includes a motor, a reducer, a drum and a brake, among which the motor is connected to the reducer, the reducer and the brake are connected to the drum, and the motor, the reducer and the brake are all connected to the control module 140 . do. Meanwhile, the motor, the reducer, and the brake are all connected to the control module 140 . The speed reducer is implemented by an independent member constituted by a gear transmission sealed in a rigid case, a worm transmission, and a gear-worm transmission, and is installed to match the rotational speed and transmit torque.

The lifting mechanism 114 is implemented by a winch. The grabbing unit 115 performs slag grabbing and slag unloading through grabbing. Among them, the grabbing unit 115 includes a grab and a transmission module, the grab is connected to the lower end of the elevating mechanism 114 through the transmission module, and the transmission module performs a grabbing operation by interlocking the grab. make it A transmission reduction module is installed within the transmission module. Meanwhile, the sensor detection module 150 detects a signal such as a position of a slag particle and a position of a grabbing part of the slag grabbing module.

The control module 140 controls the movement direction and the movement distance of the cart operation mechanism 112 and the trolley operation mechanism 113 based on the position of the slag particle and the position of the grabbing part, and sets the grabbing part 115 to the position of the slag particle. By moving upward, the subsequent slag grabbing operation is performed.

After moving the grabbing part 115 above the position of the slag particles, the control module 140 controls the lifting mechanism 114 based on the height position of the grabbing part 115 to raise and lower the grabbing part 115, The grabbing unit 115 is lowered above the slag particles. When the grabbing unit 115 is positioned above the slag particles, the control module 140 transmits a grabbing operation command to the grabbing unit 115 , and the grabbing unit 115 performs the slag grabbing operation.

After the grabbing unit 115 completes the slag grabbing, the control module 140 controls the operation of the control elevating mechanism 114 based on the height position of the grabbing unit, thereby raising the grabbing unit 115 by a predetermined distance. let it do Thereafter, the control module 140 controls the movement direction and the movement distance of the cart operation mechanism 112 and the trolley operation mechanism 113 based on the predetermined slag unloading position 130 , so that the grabbing unit 115 is a predetermined To move upward of the slag unloading position (130).

When the grabbing unit 115 moves above the predetermined slag unloading position 130 , the control module 140 controls the operation of the control lifting mechanism 114 based on the height position of the grabbing unit 115 , and yes By adjusting the height of the ice part 115, the transmission module of the grabbing part 115 is controlled, and the grab is dumped or opened through the operation of the transmission module, so that the slag unloading operation is performed.

In order to know by analyzing the intelligent slag grabbing device, the control module 140 controls the cart operation mechanism 112 of the slag grabbing module 110, the trolley based on the signal collected by the sensor detection module 150 . Automatic slag grabbing and slag unloading are performed by controlling the operation of the operating mechanism 113 , the lifting mechanism 114 , and the grabbing unit 115 .

In the circuit structure of the intelligent slag grabbing device 8 , the sensor detection module 150 is connected to the control module 140 , and the control module 140 includes the cart operation mechanism 112 of the slag grabbing module 110 . ), the trolley operating mechanism 113, the hoisting mechanism 114 and the grabbing unit 115 are connected, among which modules may be electrically connected by conducting wires.

Of course, the connection method between the modules may be a wireless connection method according to a LAN, and includes, but is not limited to, a Bluetooth connection and a wireless communication network connection. By connecting the modules by a wireless connection method, the amount of wiring work can be effectively reduced.

Among them, the sensor detection module 150 is for detecting signals such as the position of the slag particle and the position of the grabbing unit 115 of the slag grabbing module. The control module 140 controls the operations of the cart operating mechanism 112, the trolley operating mechanism 113, the lifting mechanism 114 and the grabbing unit 115 based on the signal detected by the sensor detection module 150. Perform automation tasks.

The sensor detection module 150 includes a material surface scan sensor 153 , a horizontal position sensor 154 , and a height sensor 155 . The material surface scan sensor 153 is installed at an upper position of the filter tank 7 and is connected to the control module 140 to detect the material surface state of the slag particles 121 in the filter tank 7, and the material surface A detection signal is output.

The material surface scan sensor 153 may be installed on a cart operating mechanism to perform a 3D scan. Of course, the present invention is not limited thereto, and the material surface scan sensor can be installed as long as it is located above the filter tank and can completely scan the filter tank.

The horizontal position sensor 154 is installed on the grabbing unit 115 , or installed on the trolley operating mechanism 113 , or installed on the hoisting mechanism 114 and connected to the control module 140 , and the grabbing unit The horizontal position of (115) is detected and a horizontal position detection signal is output.

The control module 140 determines the position of the slag particles based on the material surface detection signal, and then based on the position of the slag particles and the horizontal position of the grabbing unit 115 , the cart operation mechanism 112 and the trolley operation mechanism 113 By controlling the motion, the grabbing portion 115 is moved upwards in the position of the slag particles.

Among them, the signal is collected through the material surface scan sensor 153 and the horizontal position sensor 154, and the control module 140 controls based on the collected signal, and the slag particle position, the slag grabbing position and the slag graph Accurately determine the ice height to accurately perform slag grabbing.

The height sensor 155 is installed on the grabbing part 115, installed on the lifting mechanism 114, or installed on the side wall of the filter tank 7 and connected to the control module 140, and the grabbing part The height of 115 is detected and a height detection signal is output.

The control module 140 raises or lowers the grabbing part 115 based on the height detection signal control hoisting mechanism 114 so that the grabbing part 115 can reach an upper position of the slag particles 121 . Among them, the height information of the grabbing unit 115 is collected through the height sensor 155, and the control module 140 performs control based on the collected signal, thereby accurately positioning the slag grabbing height, Slag grabbing can be performed.

The sensor detection module 150 is installed on the bottom surface of the filter tank 7 and is connected to the control module 140 to detect the weight of the slag particles 121 in the filter tank 7 and output a slag particle weight signal. The control module 140 further includes a sensor 156, based on the slag particle 121 weight signal, statistics on the weight change of the slag particles 121 in the filter tank 7 in real time, and the total slag grabbing The weight is calculated, and when the total weight of slag grabbing reaches a predetermined weight, the slag grabbing module 110 is controlled to stop the slag grabbing operation, and the slag particle weight change situation is reported to the central control system of the blast furnace system. By feedback, it is advantageous to optimize the blast furnace raw material quality and mixing ratio by the central control system of the blast furnace system, optimize the blast furnace operation, and promote the smooth operation of the blast furnace.

When it is detected by the weight sensor 156 that the weight of the slag particles 121 in the filter tank 7 exceeds a predetermined value, a signal is transmitted to the control module 140, and the control module 140 issues a start command. By sending it, the slag grabbing operation is performed. The sensor detection module further includes a moment sensor 157, wherein the moment sensor 157 is installed on the steel wire rope 117 and connected to the control module 140, whereby the operating state of the lifting mechanism 114 monitors, generates a moment signal, and the control module 140 controls the lifting mechanism operation based on the moment signal and the height detection signal.

When the grabbing part 115 descends to the surface of the liquid water in the filter tank 7 , the water surface generates an upward buoyancy force with respect to the grabbing part, and the moment sensor 157 acts on the steel wire rope 117 . By sensing the buoyancy to generate a moment signal, and by lowering the rotational speed of the lifting mechanism 114 based on the moment signal, the lowering speed of the grabbing unit 115 is reduced, thereby preventing the rope of the winch from loosening And, as the winch continues to rotate after the grab falls on the surface of the material of the slag particles, the rope of the winch is loosened, thereby avoiding the detachment of the pulley device of the winch.

The control module is a PLC, and the position range of the filter tank, the minimum slag grabbing limit height for protecting the filter medium, and a predetermined control process are stored in advance. The slag particle analysis module 120 may be a metal in situ analyzer, of course, the present invention is not limited thereto, and as long as it is an instrument capable of analyzing the slag particle chemical composition, it may be used as the slag particle analysis module of the embodiment of the present invention.

The intelligent slag grabbing device 8 may further include a notification device, wherein the notification device is connected to the control module, and when the slag particle weight in the filter tank exceeds a predetermined value or the slag grabbing module operates abnormally, The control module transmits a notification signal to the notification device, and the notification device performs voice and light notification based on the notification signal, so that the operator can discover the abnormal state in a timely manner to prevent damage to the device.

The intelligent slag grabbing device provided in the embodiment of the present invention can be operated automatically according to a pre-installed program, and avoids that the sulfur-containing steam harms the physical health of the operator without the need for professional monitoring by the operator, Since the slag grabbing and slag unloading operations can be performed continuously without Prevents the rope from loosening, and the winch continues to rotate even after the grab is dropped on the material surface of the slag particles to prevent the winch's rope from loosening and the winch's pulley device from detaching, thereby reducing the hardening of the filter medium and , by significantly extending the service life of the filter medium in the filter tank, it is possible to reduce the replacement cost of the filter medium.

On the other hand, the intelligent slag grabbing device provided in the embodiment of the present invention monitors the chemical composition change of the slag particles in a timely manner through the slag particle analysis module and feeds it back to the central control system of the blast furnace system, and through the weight sensor By monitoring the slag particle weight, the control module stats the slag weight based on the signal collected by the weight sensor, and feeds it back to the central control system of the blast furnace system to control the blast furnace raw material quality and mixing ratio by the central control system of the blast furnace system. It can be advantageous for optimizing, optimizing the operation of the blast furnace and promoting the smooth operation of the blast furnace to realize the planned production decision.

In the present application, the control module or controller may be implemented by an Application Specific Integrated Circuit (ASIC), a programmable logic controller, and an embedded microcontroller. As the controllers, ARC 625D, Atmel AT91SAM, Microchip PIC18F26K20 and Silicone Labs C8051F320, but is not limited thereto. For those skilled in the art, in addition to implementing the controller by means of computer readable program code, the method procedure is logic programmed so that the controller provides the same functions in the form of logic gates, switches, dedicated integrated circuits, programmable logic controllers and embedded microcontrollers, etc. can be realized Accordingly, such a controller may be a hardware member, and a module for performing various functions included therein may be a structure in the hardware member. Alternatively, the module for performing various functions may be a software module for realizing the method or may be a structure in a hardware member.

Hereinafter, an operation process of the eco-friendly energy-saving intelligent blast furnace slag treatment system will be described.

A granulator 14 is installed below the inlet of the high-temperature slag (1350° C. to 1500° C.) of the granulation tower 1, and the high-temperature slag completes granulation by the action of a large amount of high-speed granulation water, and the slag mixture is granulated It falls to the bottom of the fire tower (1). Transport water (about 40° C. to 45° C.) is introduced at the bottom of the granulation tower 1, and by the action of the transport water, the slag mixture is transferred to the first filtration sub-tank 71 or the second filtration sub-tank 72 is brought in

A first steam heat exchanger 13 is installed at a position close to the top of the granulation tower 1 above the granulator 14, and a steam pipe and a first induced draft fan ( 2) is installed. Under the action of the first induced draft fan (2), the steam generated by the slag granulation (about 80°C to 100°C) moves upward inside the granulation tower (1), and the steam is transferred to the first steam heat exchanger (13) ), the room temperature water (about 25 ℃ ~ 35 ℃) introduced into the first steam heat exchanger 13 absorbs a large amount of thermal energy to produce hot water (about 60 ℃ ~ 80 ℃), a large amount of steam During the heat exchange process, it condenses into water droplets and falls to the bottom of the granulation tower (1). Uncondensed steam enters the chimney 3 from the steam pipe on the top side of the granulation tower 1 .

Above the outlet of the granulation tower vapor pipe in the chimney 3, a single (or multi-layer) spray device 17, a demister 16, and a backwash device 15 are sequentially installed. The spray device 17 is composed of a plurality of long spray guns 18 and short spray guns 19 arranged uniformly and alternately at the same height inside the chimney 3, and there are a plurality of long spray guns and short spray guns. of the high-pressure nozzle 20 is uniformly disposed. Based on the needs of the process, multiple layers of long spray guns 18 and short spray guns 19 and added high pressure nozzles 20 are arranged at different heights. Spray water (about 40° C. to 45° C.) is ejected from the high-pressure nozzle 20 to form an atomized state inside the chimney, and the atomized spray water is uniformly filled in the inner space of the chimney.

After the uncondensed steam flows into the chimney (3), it generates condensate under the action of atomized spray water, and the condensed water flows into the bottom of the chimney (3) together with the spray water and cools along the pipe of the condensate spray water. It flows into the tower (11). A demister 16 is installed above the spray device 17 and removes uncondensed vapors and small water droplets. The backwash device 15 can backwash the demister 16 on a regular basis to avoid clogging the demister 16 from prolonged use.

The slag mixture pipes drawn out from the bottom of the granulation tower 1 are connected to each other at the junction of the two-pronged filter tank pipes, and the two-pronged filter tank pipes are respectively introduced into the two filter tanks. A first slag mixture pipe valve 61 and a second slag mixture pipe valve 62 are respectively mounted on the pipes introduced into the two-pronged filter tank, and when it is necessary to use the first filtration sub-tank 71, The first slag mixture pipe valve 61 is opened to turn off the second slag mixture pipe valve 62 .

A movable vapor cover 22 is installed at the top of the filter tank to seal the vapor on the surface of the filter tank material, and after slag cleaning is stopped, the movable vapor cover 22 is removed to perform slag grabbing. A second induced ventilation fan 4 is installed outside the perforated portion of the filter tank side wall by making a hole in the side wall of the filter tank close to the chimney and close to the top, so that the vapor on the surface of the filter tank material is drawn out. Under the negative pressure of the second induced draft fan 4 and the sealing action of the movable vapor cover 22 , the vapor on the surface of the filter tank material leaves the filter tank and flows into the second vapor heat exchanger 21 .

Room temperature water (about 25° C. to 35° C.) flows into the user pipe network after being heated through the second steam heat exchanger 21, and most of the steam is condensed into water droplets under the action of the heat exchanger and flows into the filter tank together with the slag mixture. After entering the chimney (3) without condensing, a small portion of the steam creates water droplets by the spray device (17) in the chimney, falls to the bottom of the chimney (3), and then in the cooling tower (11). is brought in

A first hot water heat exchanger 23 and a second hot water heat exchanger 24 are installed in the pump chamber 10, the two heat exchangers are connected in series, and high-temperature filtered water (about 70° C. to 90° C.) is supplied from the bottom of the filter tank. It flows out and sequentially passes through the first hot water heat exchanger 23 and the second hot water heat exchanger 24 to heat the room temperature water in the heat exchange process.

After the high-temperature filtered water is heat-exchanged to generate low-temperature filtered water, it flows into the cooling tower 11 and cools, then the cooling water flows into the storage tank 12, and the cooling water in the storage tank is spray water from chimney, granulated water from granulation tower, or transport It is recycled as water.

The composition of the blast furnace slag changes and the water quality of the filtered water changes according to the change in the quality of the raw materials of the blast furnace and the mixing ratio. The filter layer is filtered at the outlet of the bottom of the filter tank and the quality of the filtered water flowing out is detected and analyzed, and the temperature and flow rate of the filtered water are detected. Promote smooth operation of the blast furnace.

The intelligent slag-grabbing machine controls the grab crane to perform the slag-grabbing operation, and unloads the slag particles to the slag carrier 9 after performing the slag-grabbing.

The intelligent slag grabbing machine stats the total filter tank slag particle weight through the slag particle analysis module, analyzes the slag particle chemical composition change, monitors the blast furnace slag weight and composition in a timely manner, and feeds it back to the blast furnace central control system for planned Carry out production decisions, optimize blast furnace raw material quality and mixing ratio, and optimize blast furnace operation.

Hot water (about 60°C ~ 70°C) after being heated through a steam heat exchanger has a wide range of uses, and after it enters the user pipe network, it is used for bath water and shower of domestic water systems, can be used for winter heating, and industrial water systems Humidification and preheating can be performed as a material of The steam during the slag granulation process and the heat energy of the slag washing water and steam in the filter tank are effectively recovered, reducing the sulfur-containing steam discharged into the air, realizing the steam de-whitening treatment, saving energy and discharging exhaust gas has important implications for reducing

The steam heat exchanger according to the present disclosure can be replaced by a low energy consumption lithium bromide absorption residual heat cooler with a power of only 5 to 10 kW. Thermal energy is used for cooling, and the low-temperature cold water (about 5 ℃ ~ 15 ℃) obtained through the residual heat cooler may be transported to the air-conditioner assembly as cooling water for the air-conditioner, or as refrigerated water for the production process to the corresponding system of the blast furnace. It can also be used (eg cooling systems in blast furnaces).

Regarding the use of residual heat of steam and hot water from blast furnace slag treatment, a heat exchanger system and a residual heat cooling system can be installed at the same time. It can be used for heating.

Hot water (about 60°C ~ 70°C) after being heated by a steam heat exchanger has a wide range of uses, and after entering the user pipe network, it can be used for bath water and showers of domestic water systems, and can be used for heating in winter and for industrial use. It can be used for humidification and preheating of materials in water systems. Low-temperature cold water (about 5°C to 15°C) obtained through the lithium bromide absorption type residual heat cooler may be transported to the air-conditioner assembly as air-conditioner frozen water, or transported to the corresponding system of the blast furnace (eg, the blast furnace cooling system) as frozen water for the production process. it might be

According to the present invention, the steam in the granulation tower, the slag washing water in the filter tank, and residual heat of the steam are fully utilized to realize effective circulation utilization of energy, and the discharge of sulfur-containing steam in the filter tank is reduced to perform de-whitening treatment. It can reduce air pollution, and after the filtered water is treated through a residual heat cooler, the temperature is lowered to reduce the working load of the cooling tower, and effective cooling can be performed, and a heat exchanger that does not consume energy or energy consumption By using a small amount of lithium bromide absorption type residual heat cooler, the operating cost is reduced and the efficiency is high.

The present invention detects and analyzes the water quality of the filtered water, detects the temperature and flow rate of the filtered water, and feeds back all detection results to the blast furnace central control system in a timely manner, thereby optimizing the operation of the blast furnace and promoting the smooth operation of the blast furnace. do. The present invention can timely monitor the blast furnace slag weight and composition and feed it back to the blast furnace central control system, realize a planned production decision, optimize the blast furnace raw material quality and mixing ratio, and optimize the blast furnace operation.

The above is only a specific embodiment of the present invention, the present invention is not limited thereto, and it should be understood that the substitution of equivalent components or equivalent changes and modifications made within the patent scope of the present invention all fall within the scope of this patent. something to do. Meanwhile, between technical features and technical features, between technical features and technical inventions, and between technical inventions and technical inventions according to the present invention may be used in combination with each other.

1: granulation tower; 2: first induced draft fan; 3: chimney; 4: second induced draft fan; 51: first filter tank vapor pipe valve; 52: second filter tank vapor pipe valve; 61 : first slag mixture pipe valve; 62: second slag mixture pipe valve; 7: filter tank; 71: first filtration sub-tank; 72: second filtration sub-tank; 8: intelligent slag grabbing device; 9: slag transport Car; 10: water pump room; 11: cooling tower; 12: water storage tank; 13: first steam heat exchanger; 14: granulator; 15: backwashing device; 16: demister; 17: spraying device; 18: long spray Gun; 19: short spray gun; 20: high pressure nozzle; 21: second steam heat exchanger; 22: movable vapor cover; 23: first hot water heat exchanger; 24: second hot water heat exchanger; 39: steam pipe; 40 : steam heat exchange pipeline; 41: slag mixture pipe; 42: drain pipe; 43: user pipe network; 110: slag grabbing module; 120: slag particle analysis module; 130: predetermined slag unloading position; 140: control module; 150 : sensor detection module; 160: central control system; 111: track frame; 112: cart running mechanism; 113: trolley running mechanism; 114: elevating mechanism; 115: grabbing unit; 116: Cart wheel; 117: steel wire rope; 121: slag particles; 153: material surface scan sensor; 154: horizontal position sensor; 155: height sensor; 156: weight sensor; 157: moment sensor.

Claims (10)

In an eco-friendly energy-saving intelligent blast furnace slag treatment system,
Granulation tower (1), chimney (3), filter tank (7), hot water heat exchange unit, cooling tower (11), water storage tank (12), slag truck (9) and intelligent slag grabbing machine (8) wherein the granulation tower (1) is connected with the filter tank (7) through a slag mixture pipe (41), and the granulation tower (1) is connected with the chimney (3) through a steam pipe (39), A first induced draft fan 2 is installed on the steam pipe 39 , the filter tank 7 is connected to the chimney 3 through a steam heat exchange pipeline 40 , and the chimney 3 is a drain pipe 42 . is connected to the cooling tower 11 through Grabbing the water slag in the filter tank (7),
A granulator 14 and a first steam heat exchanger 13 are installed in the granulation tower 1, and the granulator 14 is located below the slag inlet of the granulation tower 1, and the first steam heat exchange The mill 13 is located at the top of the granulation tower 1, and the slag inlet of the granulation tower 1 is located between the first steam heat exchanger 13 and the granulator 14, and the steam pipe 39 ) and the granulation tower (1) are located above the first steam heat exchanger (13), and the uncondensed steam in the granulation tower (1) is transferred from the steam pipe (39) to the first induced draft fan (2). ) to chimney,
The filter tank 7 includes a first filtration sub-tank 71 and a second filtration sub-tank 72 installed adjacent to each other in parallel, and in the first filtration sub-tank 71 or the second filtration sub-tank 72 . The discharged steam may be introduced into the second steam heat exchanger (21) to dissipate heat, and the steam may be introduced into the chimney (3) after heat dissipation. According to claim 1,
In the chimney 3, a spray device 17, a demister 16 and a backwash device 15 are sequentially installed from bottom to top, and the connection portion between the steam pipe 39 and the chimney 3 is connected to the spray device ( 17), the spray device 17 is provided with a long spray gun 18 and a short spray gun 19 alternately arranged along the circumferential direction of the chimney 3, and a long spray gun 18 And on the short spray gun (19), an eco-friendly energy-saving type blast furnace slag intelligent treatment system, characterized in that a plurality of nozzles (20) are arranged. According to claim 1,
A movable vapor cover 22 is installed on the top of the filter tank 7 , and the movable vapor cover 22 can seal the first filtration sub-tank 71 or the second filtration sub-tank 72 . Eco-friendly energy-saving blast furnace slag intelligent treatment system, characterized in that. 4. The method of claim 3,
A first heat exchange pipeline is connected to the second steam heat exchanger (21), and the first heat exchange medium in the first heat exchange pipeline absorbs heat from the second steam heat exchanger (21) and then the user pipe network (43) An eco-friendly energy-saving blast furnace slag intelligent treatment system, characterized in that it is introduced into the According to claim 1,
The hot water heat exchange unit includes a first hot water heat exchanger 23 and a second hot water heat exchanger 24 , and the first hot water heat exchanger 23 is connected in series or in parallel with the second hot water heat exchanger 24 , installed, 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 disposed between the filter tank 7 and the water storage tank 12 . An eco-friendly energy-saving blast furnace slag intelligent treatment system, characterized in that it is located. 6. The method of claim 5,
The filtered water flowing out of the filter tank (7) radiates heat from 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 hot water heat exchanger (24) Two heat exchange pipelines are connected, and the second heat exchange medium in the second heat exchange pipeline absorbs heat from the first hot water heat exchanger 23 and the second hot water heat exchanger 24, and then the user pipe network 43 An eco-friendly energy-saving blast furnace slag intelligent treatment system, characterized in that it flows into the furnace. According to claim 1,
The intelligent slag grabbing device 8 includes a sensor detection module, a control module connected to the sensor detection module, and a slag grabbing module and a slag particle analysis module connected to the control module,
The slag particle analysis module analyzes the chemical composition of the slag particles, and transmits the analysis result to the control module,
The sensor detection module detects a signal including the position of the slag particle, the position of the grabbing portion of the slag grabbing module,
The control module outputs slag grabbing and slag unloading commands to the slag grabbing module based on the signal detected by the sensor detection module, and based on the analysis result, stats the change in chemical composition of the slag particles. Upload to the central control system of the blast furnace system,
The slag grabbing module is installed on the filter tank, and the slag grabbing and slag unloading operation is performed based on the slag grabbing and slag unloading command. 8. The method of claim 7,
The slag grabbing module includes two track frames parallel to each other installed on both sides of the filter tank, a cart operating mechanism crossing the track frame, a trolley operating mechanism installed on the cart operating mechanism, and a lower portion of the trolley operating mechanism. It includes a connecting lifting mechanism and the grabbing portion connected to the bottom surface of the lifting mechanism,
The cart operating mechanism moves along the two track frames, on which a trolley track perpendicular to the track frame is installed;
The lifting mechanism raises or lowers the grabbing portion,
The eco-friendly energy-saving intelligent blast furnace slag processing system, characterized in that the grabbing unit performs slag grabbing and slag unloading by a grabbing operation. 9. The method of claim 8,
The sensor detection module,
a material surface scan sensor connected to the control module, detecting a material surface state of slag particles in the filter tank and outputting a material surface detection signal;
a horizontal position sensor connected to the control module, detecting a horizontal position of the grabbing unit and outputting a horizontal position detection signal;
A height sensor connected to the control module and outputting a height detection signal by detecting the height of the grabbing part; And
a weight sensor connected to the control module to detect the weight of slag particles in the filter tank and output a slag particle weight signal;
including,
Among them, the control module detects the position of the slag particle based on the material surface detection signal,
The control module operates the grabbing unit to the slag particle position or a predetermined slag unloading position by controlling the movements of the cart operating mechanism and the trolley operating mechanism based on the horizontal position detection signal,
The control module controls the lifting mechanism to raise or lower the grabbing unit based on the height detection signal,
The control module stats the change in the slag particle weight in the filter tank in real time based on the slag particle weight signal, calculates the slag grabbing total weight, and when the slag grabbing total weight reaches a predetermined weight, An eco-friendly energy-saving intelligent blast furnace slag processing system, characterized in that the slag grabbing module is controlled to stop the slag grabbing operation, and the change in the slag particle weight is fed back to a central control system of the blast furnace system. delete

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