CN119353950A - A device and method for recovering waste heat from rolled metal materials - Google Patents
A device and method for recovering waste heat from rolled metal materials Download PDFInfo
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- CN119353950A CN119353950A CN202411491661.9A CN202411491661A CN119353950A CN 119353950 A CN119353950 A CN 119353950A CN 202411491661 A CN202411491661 A CN 202411491661A CN 119353950 A CN119353950 A CN 119353950A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/18—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
- F22B1/1892—Systems therefor not provided for in F22B1/1807 - F22B1/1861
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D5/00—Controlling water feed or water level; Automatic water feeding or water-level regulators
- F22D5/26—Automatic feed-control systems
- F22D5/32—Automatic feed-control systems influencing the speed or delivery pressure of the feed pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D5/00—Controlling water feed or water level; Automatic water feeding or water-level regulators
- F22D5/26—Automatic feed-control systems
- F22D5/34—Applications of valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
- B21B2045/0212—Cooling devices, e.g. using gaseous coolants using gaseous coolants
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Abstract
本发明公开了一种轧制金属材料余热回收装置及方法，其装置包括罩体机构；其方法包括S1、放置轧制后金属材料；S2、余热回收；S3、补水；本发明通过罩体机构、引风机构、换热机构、蒸汽发生器、循环机构以及软水器的配合能够实现规模性隧道式回收轧制后金属材料余热，通过控制系统与自动化系统模型配合可以根据后期工艺要求控制轧制后金属材料的冷却时长，实现金属材料均匀降温，优化了金属材料的性能。既有效提高了轧制后金属材料的冷却效率，又实现余热回收利用，从而有助于降低能源消耗，减少二氧化碳排放；通过承托机构能够对轧制后金属材料起到支撑限位作用，既能够提高轧制后金属材料置于罩体机构内的稳定性，又方便对轧制后金属材料进行取放。
The present invention discloses a device and method for recovering waste heat of rolled metal materials, wherein the device comprises a cover mechanism; the method comprises S1, placing rolled metal materials; S2, recovering waste heat; S3, replenishing water; the present invention can realize large-scale tunnel-type recovery of waste heat of rolled metal materials through the cooperation of the cover mechanism, the induced draft mechanism, the heat exchange mechanism, the steam generator, the circulation mechanism and the water softener, and can control the cooling time of rolled metal materials according to the requirements of the later process through the cooperation of the control system and the automation system model, so as to realize uniform cooling of the metal materials and optimize the performance of the metal materials. It not only effectively improves the cooling efficiency of rolled metal materials, but also realizes waste heat recovery and utilization, thereby helping to reduce energy consumption and carbon dioxide emissions; the supporting mechanism can play a supporting and limiting role on rolled metal materials, which can not only improve the stability of the rolled metal materials placed in the cover mechanism, but also facilitate the taking and placing of rolled metal materials.
Description
Technical Field
The invention relates to the technical field of hot rolling and subsequent production processes, in particular to a device and a method for recovering waste heat of rolled metal materials.
Background
The hot rolling is rolling performed at a temperature equal to or higher than the crystallization temperature. In short, a steel billet is rolled several times after being heated, then cut and corrected into a steel plate, which is called hot rolling. Can obviously reduce energy consumption and cost. The metal plasticity is high and the deformation resistance is low during hot rolling, so that the energy consumption of metal deformation is greatly reduced. The hot rolling can improve the processing performance of metals and alloys, namely, crushing coarse grains in a casting state, remarkably healing cracks, reducing or eliminating casting defects, converting an as-cast structure into a deformed structure and improving the processing performance of the alloy.
For example, the temperature of the rolled metal material is very high from a cooling bed to a storage and transportation area and is usually 450-500 ℃, and because the sensible heat is difficult to recover, a steel mill usually adopts a natural cooling method to reduce the temperature of the rolled metal material to below 200 ℃ or a normal temperature state, however, the cooling process can be completed after 50-60 hours, and the heat is wasted to waste heat.
For this purpose, a device and a method for recovering waste heat of rolled metal materials are provided.
Disclosure of Invention
The technical task of the invention is to provide a device and a method for recovering waste heat of rolled metal materials, which are used for solving the problems.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The utility model provides a rolling metal material waste heat recovery device, includes cover body mechanism, is equipped with on it and is used for carrying the heat in cover body mechanism inner chamber below to the supplementary induced air mechanism in the heat exchanger mechanism of top, cover body mechanism's inner chamber is equipped with from top to bottom in proper order and is used for the heat exchange mechanism of steam-heat medium heat exchange operation and is used for carrying out the supporting mechanism to rolling metal material, cover body mechanism is used for providing supporting basis and can form a relative enclosure space for supplementary induced air mechanism and heat exchange mechanism, cover body mechanism's one side is equipped with can utilize heat energy to heat water into the steam generator of hot water or steam, be equipped with the circulation mechanism that is used for realizing circulation heat conduction between steam generator and the heat exchange mechanism, one side of steam generator is equipped with the water softener that is used for the steam generator supply soft water.
Preferably, the cover mechanism comprises a cover, wherein the front side surface or the bottom surface of the cover is of an open structure, the upper part of the front side surface of the cover is fixedly connected with an upper baffle, and the lower part of the front side surface of the cover is provided with an opening and closing assembly;
The auxiliary induced air mechanism comprises a fan cover, wherein the fan cover is communicated with the top of the hood, an induced draft fan is arranged on one side of the fan cover, the air inlet end of the induced draft fan is communicated with the fan cover, the air outlet end of the induced draft fan is communicated with an air guide pipe, and one end of the air guide pipe, which is far away from the induced draft fan, is communicated with the lower part of the inner cavity of the hood;
The heat exchange mechanism comprises a plate heat exchanger, the plate heat exchanger is fixedly connected to the upper part of the inner cavity of the hood, the bottom of the plate heat exchanger is communicated with a wind collecting hood, and a gas circulation channel is formed among the wind collecting hood, the plate heat exchanger, the wind hood, the induced draft fan, the air guide pipe and the hood;
The steam generator comprises a steam tank, the steam tank is positioned on one side of the hood, the top of the steam tank is communicated with a steam delivery pipe, a steam-water separation device is arranged in the steam delivery pipe, and the steam tank is communicated with the plate heat exchanger through a circulating mechanism;
The circulating mechanism comprises a circulating pump, the circulating pump is positioned below the steam tank, the inlet end of the circulating pump is communicated with the outlet end of the steam tank, the outlet end of the circulating pump is communicated with a hose A, the inlet end of the steam tank is communicated with a hose B, the hose B is respectively communicated with the other end of the hose A, one of the other ends of the hoses is communicated with the inlet end of the plate heat exchanger, the other end of the other one of the hoses is communicated with the outlet end of the plate heat exchanger, and a medium circulation channel is formed among the steam tank, the circulating pump, the hose A, one of the hoses, the plate heat exchanger, the other one of the hoses and the hose B;
The water softener comprises a soft water tank, wherein the outlet end of the soft water tank is communicated with a hose C, the other end of the hose C is communicated with a water supplementing pump, the water supplementing pump is positioned below the steam tank and is communicated with the water supplementing port end of the steam tank, the inlet end of the soft water tank is communicated with an external water source, and valves are respectively arranged on the inlet end and the outlet end of the hose C, the hose A and the hose B and the plate heat exchanger;
The supporting mechanism comprises a bracket assembly, the bracket assembly is positioned below the inner cavity of the hood, and four corners of the bottom of the bracket assembly are respectively provided with a movable wheel;
The bracket assembly comprises a supporting plate, a limiting seat is fixedly connected to the front side and the rear side of the top of the supporting plate, an inclined plane is arranged on one side, opposite to the limiting seat, of each limiting seat, and the inclined planes are symmetrically arranged relative to the center of the supporting plate.
Compared with the prior art, the invention has the advantages and positive effects that:
1. According to the invention, through the matched use of the cover body mechanism, the auxiliary air inducing mechanism, the heat exchange mechanism, the steam generator, the circulating mechanism and the water softener, the large-scale tunnel type recovery of the waste heat of the rolled metal material can be realized, the control system is matched with the automatic system model, the cooling time of the rolled metal material can be controlled according to the later process requirements, the uniform cooling of the metal material is realized, the performance of the metal material is optimized, the cooling efficiency of the rolled metal material is effectively improved, the waste heat recovery is realized, and the energy consumption and the carbon dioxide emission are reduced;
2. According to the invention, through the arrangement of the bearing mechanism, the support and limit functions can be realized on the rolled metal material, so that the stability of the rolled metal material in the cover mechanism can be improved, the rolled metal material can be conveniently taken and placed, and the flexibility of the rolled metal material in or out of the cover mechanism is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a rolled metal material waste heat recovery device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram II of a rolled metal material waste heat recovery device according to an embodiment of the present invention;
fig. 3 is a schematic structural view of an open-close assembly of a rolled metal material waste heat recovery device according to an embodiment of the present invention;
Fig. 4 is a schematic structural view of a hood, an induced draft mechanism and a support mechanism of the rolled metal material waste heat recovery device according to the embodiment of the invention;
fig. 5 is a schematic structural view of a hood and an induced draft mechanism of the rolled metal material waste heat recovery device according to the embodiment of the invention;
FIG. 6 is an exploded view of the hood, air induction mechanism and support mechanism of the rolled metal material waste heat recovery device according to the embodiment of the invention;
Fig. 7 is a schematic structural diagram of an air inducing mechanism and a heat exchanging mechanism of the rolled metal material waste heat recovery device according to the embodiment of the invention;
FIG. 8 is a schematic diagram of the heat exchange mechanism of the rolled metal material waste heat recovery device according to the embodiment of the invention;
fig. 9 is a flowchart of a method for recovering waste heat of rolled metal materials according to an embodiment of the present invention.
100 Parts of cover body mechanism, 110 parts of cover, 111 parts of vent hole, 120 parts of upper baffle plate, 130 parts of opening and closing assembly, 131 parts of lower baffle plate, 132 parts of protruding block, 133 parts of rodless cylinder, 140 parts of filter screen;
200. the device comprises an auxiliary induced air mechanism, a fan housing, a 220 induced draft fan, a 230 induced air pipe and an induced air pipe;
300. a heat exchange mechanism; 310, plate heat exchanger 320, wind collecting hood;
400. steam generator 410, steam tank 420, steam outlet pipe 430, liquid level meter;
500. circulation mechanism, 510, circulation pump, 520, hose A, 530, hose B, 540, catheter;
600. Water softener 610, soft water tank 620, hose C630, water supplementing pump;
700. bearing mechanism, 710, bracket component, 711, bearing plate, 712, limit seat, 720, moving wheel;
800. and (3) a bracket.
Detailed Description
In order that the above objects, features and advantages of the application will be more clearly understood, a further description of the application will be rendered by reference to the appended drawings and examples. It should be noted that, without conflict, the embodiments of the present application and features in the embodiments may be combined with each other.
The invention will be further described with reference to the drawings and the specific examples.
Example 1
As shown in fig. 1 to 8, a rolled metal material waste heat recovery device according to an embodiment of the present invention includes a cover mechanism 100, on which an auxiliary air induction mechanism 200 for transferring heat from the lower part of an inner cavity of the cover mechanism 100 to the upper part is provided, a heat exchange mechanism 300 for performing heat exchange operation of hot air-heat transfer medium and a support mechanism 700 for supporting rolled metal material are sequentially provided from top to bottom in the inner cavity of the cover mechanism 100, the cover mechanism 100 is used for providing a support base for the auxiliary air induction mechanism 200 and the heat exchange mechanism 300 and forming a relatively closed space, a steam generator 400 capable of heating water into hot water or steam by using heat energy is provided on one side of the cover mechanism 100, a circulation mechanism 500 for realizing circulation heat conduction is provided between the steam generator 400 and the heat exchange mechanism 300, and a soft water softener 600 for supplying soft water to the steam generator 400 is provided on one side of the steam generator 400.
Example 2
As shown in fig. 1 to 8, the device for recovering waste heat of rolled metal material provided in this embodiment is different from embodiment 1 in that:
The cover mechanism 100 comprises a cover 110, wherein the front side surface and the bottom surface of the cover 110 are of an open structure, an upper baffle 120 is fixedly connected to the upper part of the front side surface of the cover 110, an opening and closing assembly 130 is arranged at the lower part of the front side surface of the cover 110, and a relatively closed space can be provided for rolled metal materials through the cover mechanism 100 so as to facilitate the subsequent waste heat recovery operation of the rolled metal materials; the opening and closing assembly 130 comprises a lower baffle 131 movably connected to the front side of the hood 110, two sides of the lower baffle 131 are fixedly connected with a bump 132, two sides of the front side of the hood 110 are vertically and fixedly connected with rodless cylinders 133, the rodless cylinders 133 are in one-to-one correspondence with the bumps 132, a sliding table of each rodless cylinder 133 is fixedly connected with one side of each bump 132, the bumps 132 and the lower baffle 131 can be driven to move upwards or downwards through the sliding table by starting the rodless cylinders 133, and then automatic opening and closing operation of the lower baffle 131 can be achieved, so that rolled metal materials can be taken and placed through the supporting mechanism 700, two vent holes 111 which are arranged up and down are formed in one side of the hood 110, two filter screens 140 which are arranged up and down and used for shielding the vent holes 111 are arranged in one-to-one correspondence with the vent holes 111 are arranged in one side of the hood 110, the filter screens 140 can play a role in filtering gas entering the hood 110, large-volume impurities and the like are prevented from being sucked into the inner cavity of the hood 110, and meanwhile safety of the auxiliary air guiding mechanism 200 is improved.
The auxiliary induced air mechanism 200 comprises a fan housing 210, the fan housing 210 is communicated with the top of the hood 110, an induced draft fan 220 is arranged on one side of the fan housing 210, the air inlet end of the induced draft fan 220 is communicated with the fan housing 210, the air outlet end of the induced draft fan 220 is communicated with an air guide pipe 230, one end, far away from the induced draft fan 220, of the air guide pipe 230 is communicated with the lower portion of the inner cavity of the hood 110, and heat can be quickly absorbed into the heat exchange mechanism 300 through the induced air mechanism 200, so that the operation of recovering waste heat of rolled metal materials is realized.
The heat exchange mechanism 300 comprises a plate heat exchanger 310, the plate heat exchanger 310 is fixedly connected to the upper part of the inner cavity of the hood 110, the bottom of the plate heat exchanger 310 is communicated with a wind collecting cover 320, the heat in the hood 110 can be collected and guided through the wind collecting cover 320, and a gas circulation channel is formed among the wind collecting cover 320, the plate heat exchanger 310, the wind cover 210, the auxiliary induced draft fan 220, the air guide pipe 230 and the hood 110.
The steam generator 400 comprises a steam tank 410, the steam tank 410 is positioned on one side of the hood 110, a steam delivery pipe 420 is communicated with the top of the steam tank 410, a steam-water separation device is arranged in the steam delivery pipe 420, the steam tank 410 is communicated with the plate heat exchanger 310 through a circulating mechanism 500, a liquid level meter 430 is arranged on one side of the steam tank 410, the liquid level meter 430 is connected with the steam tank 410 through a flange, and the liquid level in the steam tank 410 can be observed in real time through the liquid level meter 430.
The circulation mechanism 500 includes a circulation pump 510, the circulation pump 510 is located below the steam tank 410, an inlet end of the circulation pump 510 is communicated with an outlet end of the steam tank 410, an outlet end of the circulation pump 510 is communicated with a hose a520, an inlet end of the steam tank 410 is communicated with a hose B530, the other ends of the hose B530 and the hose a520 are respectively communicated with a liquid guide pipe 540, the other end of one liquid guide pipe 540 is communicated with an inlet end of the plate heat exchanger 310, the other end of the other liquid guide pipe 540 is communicated with an outlet end of the plate heat exchanger 310, and a medium circulation channel is formed among the steam tank 410, the circulation pump 510, the hose a520, one liquid guide pipe 540, the plate heat exchanger 310, the other liquid guide pipe 540 and the hose B530.
The water softener 600 includes a soft water tank 610, a hose C620 is connected to an outlet end of the soft water tank 610, a water supplementing pump 630 is connected to the other end of the hose C620, the water supplementing pump 630 is located below the steam tank 410 and is connected to a water supplementing port of the steam tank 410, an inlet end of the soft water tank 610 is connected to an external water source, and valves are respectively installed on inlet and outlet ends of the hose C620, the hose a520, the hose B530 and the plate heat exchanger 310.
The bearing mechanism 700 comprises a bracket assembly 710, the bracket assembly 710 is positioned below an inner cavity of the hood 110, moving wheels 720 are arranged at four corners of the bottom of the bracket assembly 710, the bracket assembly 710 comprises a bearing plate 711 which is horizontally arranged, a limiting seat 712 is fixedly connected to the front side and the rear side of the top of the bearing plate 711, the rolling metal material supported on the bearing plate 711 can be limited, the rolling metal material is prevented from shaking on the bearing plate 711, the supporting stability of the bearing mechanism 700 is further improved, inclined planes are arranged on opposite sides of the two limiting seats 712, and the two inclined planes are symmetrically arranged relative to the center of the bearing plate 711 so as to support rolling metal materials with different sizes.
The bottoms of the steam tank 410 and the soft water tank 610 are fixedly connected with a bracket 800, and the steam tank 410 and the soft water tank 610 can be supported and lifted by the bracket 800 so as to be hidden and installed on the circulating pump 510 and the water supplementing pump 630 for improving overall cleanliness and attractiveness.
Still include control system, rodless cylinder 133, induced draft fan 220, level gauge 430, circulating pump 510, soft water tank 610, make-up pump 630 and valve respectively with control system electric connection, level gauge 430 can send the liquid level signal of steam tank 410 to control system, control system receives liquid level signal and control make-up pump 630 and the valve operation on hose C620, reach the purpose of control liquid level, auxiliary induced draft fan 220 adopts servo motor drive with circulating pump 510, through control system and automatic system model cooperation, can control the cooling duration after rolling metal material and adjust the flow of steam and heat-conducting medium according to later stage technology requirement, realize the even cooling of metal material, the performance of metal material has been optimized.
Example 3
As shown in fig. 9, the method for recovering waste heat of rolled metal material provided in this embodiment uses the device for recovering waste heat of rolled metal material to recover waste heat of rolled metal material, and specifically includes the following steps:
S1, placing rolled metal materials, namely lifting the rolled metal materials with the temperature of 480 ℃ and the weight of 22.5 tons onto a bearing plate 711 from a storage and transportation area, so that the bearing plate 711 bears the rolled metal materials, limiting the rolled metal materials by a limiting seat 712, and moving the rolled metal materials to the lower part of an inner cavity of a hood 110 by using a moving wheel 720;
s2, waste heat recovery, namely storing 1 ton of warm water in the steam tank 410, starting the circulating pump 510, and conveying the normal-temperature water in the steam tank 410 into the plate heat exchanger 310 through the hose A520 and one of the liquid guide pipes 540 by the circulating pump 510; starting the induced draft fan 220, wherein the induced draft fan 220 pumps heat in the inner cavity of the hood 110 into the plate heat exchanger through the air collecting cover 320, after heat exchange is carried out through the plate heat exchanger 310, gas is blown into the inner cavity of the hood 110 through the air collecting cover 210, the induced draft fan 220 and the air guide pipe 230 in sequence, so that circulating heat exchange is realized, and an auxiliary compensation effect can be achieved on air in the hood 110 through the ventilation holes 111; the heated liquid is conveyed to the inner cavity of the steam tank 410 through the other liquid guide pipe 540 and the hose B530, so that the effect of circulating heat conduction is realized, after waiting for 60min, steam in the steam tank 410 starts to emerge through the steam delivery pipe 420, the water level in the steam tank 410 also starts to change, after 18h, the temperature of the metal material is reduced to 200 ℃, through water level calculation, 850 kg of water in the steam tank 410 in 18h is evaporated, the surface temperature of the rolled metal material is unchanged, the roll change continues to carry out waste heat recovery, through average digital calculation, the gas yield of the rolled metal material after rolling is about 38 kg, so that the temperature reduction rate and the steam yield parameter of the metal material are obtained, the large-scale tunnel type waste heat recovery treatment can be carried out, the water and the steam are separated through the steam-water separation device, and finally the separated saturated steam can be directly integrated into a steam pipe network or used for generating electricity;
s3, water replenishing, namely, the liquid level meter 430 observes the liquid level in the steam tank 410 in real time and can send a liquid level signal of the steam tank 410 to the control system, the control system receives the liquid level signal and controls the water replenishing pump 630 to start and the valve on the hose C620 to open, so that the water replenishing pump 630 conveys the soft water in the soft water tank 610 to the inner cavity of the steam tank 410 through the hose C620 and the water replenishing pump 630, and the purpose of controlling the liquid level in the steam tank 410 is achieved.
The present invention can be easily implemented by those skilled in the art through the above specific embodiments. It should be understood that the invention is not limited to the particular embodiments described above. Based on the disclosed embodiments, a person skilled in the art may combine different technical features at will, so as to implement different technical solutions.
Claims (10)
1. A rolled metal material waste heat recovery device, comprising:
The heat exchange type soft water machine comprises a cover body mechanism (100), wherein an auxiliary air inducing mechanism (200) for conveying heat below an inner cavity of the cover body mechanism (100) to the upper side is arranged on the cover body mechanism, a heat exchange mechanism (300) for carrying out heat exchange operation on hot air-heat conducting media and a supporting mechanism (700) for supporting rolled metal materials are sequentially arranged in the inner cavity of the cover body mechanism (100) from top to bottom, the cover body mechanism (100) is used for providing a supporting base for the auxiliary air inducing mechanism (200) and the heat exchange mechanism (300) and can form a relative closed space, a steam generator (400) capable of heating water into hot water or steam by utilizing heat energy is arranged on one side of the cover body mechanism (100), a circulating mechanism (500) for realizing circulating heat conduction is arranged between the steam generator (400) and the heat exchange mechanism (300), and a soft water machine (600) for supplying soft water for the steam generator (400) is arranged on one side of the steam generator (400).
2. The rolled metal material waste heat recovery device according to claim 1, wherein the cover mechanism (100) comprises a cover (110), the front side or the bottom surface of the cover (110) is of an open structure, an upper baffle (120) is fixedly connected to the upper portion of the front side of the cover (110), and an opening and closing assembly (130) is arranged on the lower portion of the front side of the cover (110).
3. The device for recovering waste heat of rolled metal materials according to claim 2, wherein the auxiliary induced air mechanism (200) comprises a fan housing (210), the fan housing (210) is communicated with the top of the hood (110), an induced draft fan (220) is arranged on one side of the fan housing (210), an air inlet end of the induced draft fan (220) is communicated with the fan housing (210), an air outlet end of the induced draft fan (220) is communicated with an air guide pipe (230), and one end, far away from the induced draft fan (220), of the air guide pipe (230) is communicated with an inner cavity of the hood (110).
4. The heat recovery device for rolled metal materials according to claim 3, wherein the heat exchange mechanism (300) comprises a plate heat exchanger (310), the plate heat exchanger (310) is fixedly connected to the upper portion of the inner cavity of the hood (110), a wind collecting cover (320) is communicated with the bottom of the plate heat exchanger (310), and a circulation channel is formed among the wind collecting cover (320), the plate heat exchanger (310), the wind collecting cover (210), the induced draft fan (220), the air guide pipe (230) and the hood (110).
5. The heat recovery device for rolled metal material according to claim 4, wherein the steam generator (400) comprises a steam tank (410), the steam tank (410) is located at one side of the hood (110), a steam delivery pipe (420) is communicated with the top of the steam tank (410), a steam-water separation device is arranged in the steam delivery pipe (420), and the steam tank (410) is communicated with the plate heat exchanger (310) through a circulation mechanism (500).
6. The heat recovery device for rolled metal material according to claim 5, wherein the circulating mechanism (500) comprises a circulating pump (510), the circulating pump (510) is located below the steam tank (410), an inlet end of the circulating pump (510) is communicated with an outlet end of the steam tank (410), an outlet end of the circulating pump (510) is communicated with a hose A (520), an inlet end of the steam tank (410) is communicated with a hose B (530), and the hose B (530) and the other end of the hose A (520) are respectively communicated with a liquid guide pipe (540).
7. The heat recovery device of rolled metal material according to claim 6, wherein the other end of one of the liquid guide pipes (540) is communicated with the inlet end of the plate heat exchanger (310), the other end of the other liquid guide pipe (540) is communicated with the outlet end of the plate heat exchanger (310), and medium circulation channels are formed among the steam tank (410), the circulating pump (510), the hose A (520), one liquid guide pipe (540), the plate heat exchanger (310), the other liquid guide pipe (540) and the hose B (530).
8. The rolled metal material waste heat recovery device as claimed in claim 7, wherein the water softener (600) comprises a soft water tank (610), a soft pipe C (620) is communicated with the outlet end of the soft water tank (610), a water supplementing pump (630) is communicated with the other end of the soft pipe C (620), the water supplementing pump (630) is positioned below the steam tank (410) and is communicated with the water supplementing end of the steam tank (410), the inlet end of the soft water tank (610) is communicated with an external water source, and valves are respectively arranged on the inlet end and the outlet end of the soft pipe C (620), the soft pipe A (520), the soft pipe B (530) and the plate heat exchanger (310).
9. The apparatus of claim 8, wherein the support mechanism (700) comprises a bracket assembly (710), the bracket assembly (710) is disposed below the inner cavity of the hood (110), and a moving wheel (720) is disposed at four corners of the bottom of the bracket assembly (710).
10. The device for recovering waste heat of rolled metal materials as defined in claim 9, wherein the bracket assembly (710) comprises a supporting plate (711), a limiting seat (712) is fixedly connected to the front side and the rear side of the top of the supporting plate (711), an inclined plane is arranged on one side opposite to the limiting seats (712), and the inclined planes are symmetrically arranged with respect to the center of the supporting plate (711).
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| CN119353950B (en) | 2025-12-19 |
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