CN117029373A - High Wen Zhaliao cooling and heat energy recycling method and device - Google Patents
High Wen Zhaliao cooling and heat energy recycling method and device Download PDFInfo
- Publication number
- CN117029373A CN117029373A CN202311104649.3A CN202311104649A CN117029373A CN 117029373 A CN117029373 A CN 117029373A CN 202311104649 A CN202311104649 A CN 202311104649A CN 117029373 A CN117029373 A CN 117029373A
- Authority
- CN
- China
- Prior art keywords
- water
- cooling
- slag
- air
- cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 149
- 238000000034 method Methods 0.000 title claims abstract description 38
- 238000004064 recycling Methods 0.000 title claims abstract description 24
- 239000002893 slag Substances 0.000 claims abstract description 103
- 239000000498 cooling water Substances 0.000 claims abstract description 31
- 239000000463 material Substances 0.000 claims abstract description 24
- 230000008569 process Effects 0.000 claims abstract description 20
- 238000005507 spraying Methods 0.000 claims abstract description 11
- 238000001704 evaporation Methods 0.000 claims abstract description 7
- 230000008020 evaporation Effects 0.000 claims abstract description 7
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 109
- 238000007599 discharging Methods 0.000 claims description 20
- 238000003723 Smelting Methods 0.000 claims description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 5
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 abstract description 11
- 238000004134 energy conservation Methods 0.000 abstract description 4
- 230000009467 reduction Effects 0.000 abstract description 4
- 239000003638 chemical reducing agent Substances 0.000 description 12
- 230000005540 biological transmission Effects 0.000 description 9
- 230000008901 benefit Effects 0.000 description 8
- 238000002386 leaching Methods 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 4
- 239000003245 coal Substances 0.000 description 4
- 239000011701 zinc Substances 0.000 description 4
- 229910052725 zinc Inorganic materials 0.000 description 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 239000011261 inert gas Substances 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000571 coke Substances 0.000 description 2
- 238000011033 desalting Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000009856 non-ferrous metallurgy Methods 0.000 description 2
- 230000002269 spontaneous effect Effects 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 description 1
- 239000003830 anthracite Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D31/00—Other cooling or freezing apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/02—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating liquids, e.g. brine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
-
- 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
- F28D11/00—Heat-exchange apparatus employing moving conduits
- F28D11/02—Heat-exchange apparatus employing moving conduits the movement being rotary, e.g. performed by a drum or roller
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F25/00—Component parts of trickle coolers
- F28F25/02—Component parts of trickle coolers for distributing, circulating, and accumulating liquid
- F28F25/06—Spray nozzles or spray pipes
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Furnace Details (AREA)
Abstract
The utility model relates to a high Wen Zhaliao cooling and heat energy recycling method and a device, wherein the high-temperature slag cooling and heat energy recycling method comprises the following steps: s1, indirectly exchanging heat between high-temperature slag and cooling water under the condition of isolating air to obtain first slag, and performing flash evaporation operation on the cooling water after heat exchange to obtain saturated steam; s2, performing air cooling heat exchange on the first slag obtained in the step S1 to obtain a second slag and heat exchanged air; s3, spraying and cooling the second slag material obtained in the step S2, and then delivering the second slag material into a slag bin, and recycling hot air. The utility model can avoid secondary combustion of the high Wen Zhaliao in the cooling process, adopts a heat exchange mode of combining indirect heat exchange of cooling water and air-cooled heat exchange, has high heat exchange efficiency, and reduces the consumption of the cooling water; the cooling water and the hot air after heat exchange are recycled, so that the purposes of energy conservation and emission reduction are achieved.
Description
Technical Field
The utility model relates to the technical field of high Wen Zhaliao cooling and waste heat recycling, in particular to a high Wen Zhaliao cooling and heat recycling method and device.
Background
There are a large number of industries such as nonferrous metallurgy, steel, building materials, etc. high Wen Zhaliao. The current process scheme for cooling most of the high Wen Zhaliao is as follows: (1) a direct cold water quenching process. Firstly, cold water is directly contacted with high-temperature slag, water vapor is discharged in an unstructured manner on site, and white pollution is serious; secondly, a large amount of wastewater can be generated, and the environmental protection cost for enterprise sewage treatment is high; most importantly, the temperature of Wen Zhaliao is more than 1000 ℃, so that a large amount of heat is wasted, and the method is contrary to the national energy environment-friendly policy; in addition, copper matte is contained in the high Wen Zhaliao, and the copper matte is directly contacted with water to cause explosion and splash, so that safety accidents are caused. (2) adopting a slag cooler technology. The method uses cold water to indirectly exchange heat with slag, the temperature of the slag is reduced, and heat is transferred to the cold water. The method has the advantages of low working medium side pressure and temperature parameters and low energy utilization efficiency.
The Chinese patent No. 203963960U discloses a water-cooled wall type material cooler, which comprises a water-cooled wall type rotary cylinder, wherein the front end of the rotary cylinder is also provided with a slag inlet device, the rear end of the rotary cylinder is provided with a slag outlet device, the rotary cylinder is of a water-cooled wall type structure, and a plurality of guide plates are spirally arranged on the water-cooled wall type material cooler; in order to increase the heat exchange area, fins are also arranged on the water-cooled wall, and the front end and the rear end are respectively connected with the front annular collecting box and the rear annular collecting box; a water inlet mother pipe and a water outlet mother pipe are also arranged on the axis of the rotary cylinder body, the water inlet mother pipe is sleeved outside the water outlet mother pipe, and the water inlet mother pipe and the water outlet mother pipe are connected with a water inlet and outlet device; the water outlet main pipe is communicated to the front part of the rotary cylinder body and is connected with the front annular collecting box through a water outlet elbow pipe; the rear annular header is connected with the water inlet main pipe through a water diversion pipe. The equipment cools the material and simultaneously also recycles the heat of the high-temperature material, thereby reducing the heat energy loss. However, cooling the high Wen Zhaliao, which is 1000 ℃ or higher, to 100 ℃ or lower requires a large amount of cooling water to be consumed, resulting in waste of water resources. In addition, the high Wen Zhaliao tends to be in a molten or softened state during transfer of the high Wen Zhaliao to the cooler, which tends to form a sticky spot that adheres to the conveyor channel. In addition, high Wen Zhaliao typically contains insufficiently combusted coal or coke, and for high Wen Zhaliao having a combustible component, how to prevent the high Wen Zhaliao from being post combusted during cooling is also a problem to be solved in the prior art.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model aims to provide a high Wen Zhaliao cooling and heat energy recycling method, which avoids high Wen Zhaliao secondary combustion in the cooling process, efficiently recycles heat energy and saves water.
In order to solve the technical problems, the technical scheme of the utility model is as follows:
the high Wen Zhaliao cooling and heat energy recycling method comprises the following steps:
s1, indirectly exchanging heat between high-temperature slag and cooling water under the condition of isolating air to obtain first slag, and performing flash evaporation operation on the cooling water after heat exchange to obtain saturated steam;
s2, performing air cooling heat exchange on the first slag obtained in the step S1 to obtain a second slag and heat exchanged hot air;
s3, spraying and cooling the second slag material obtained in the step S2, and then delivering the second slag material into a slag bin, and recycling hot air.
Therefore, the high Wen Zhaliao and the cooling water are subjected to indirect heat exchange under the condition of air isolation, the high Wen Zhaliao is cooled, the secondary combustion of the high Wen Zhaliao is avoided, the temperature of the cooling water after heat exchange is increased, the cooling water after heat exchange is changed into saturated steam through flash evaporation operation, and the heat energy is recycled; the temperature of the high Wen Liaozha is greatly reduced after indirect heat exchange, and then the first slag is subjected to air cooling heat exchange, so that a large amount of hot air is obtained while the temperature of the first slag is reduced, the hot air is recycled, the purposes of energy conservation and emission reduction are achieved, and water is saved; the spraying device is used for further cooling the slag, so that spontaneous combustion reaction caused by long-term accumulation of the slag in the slag bin is avoided.
Further, in the step S1, the cooling water is desalted and deoxidized water, and the temperature of the cooling water is 90-95 ℃; and (3) the temperature of the cooling water after heat exchange in the step (S1) reaches 150-170 ℃, and the saturated vapor pressure obtained after flash evaporation is 3-5 kg. Therefore, the flash evaporation operation is convenient to be carried out after the cooling water exchanges heat. In addition, the parameters of the steam can be adjusted according to the steam demand and the steam pipe network, and the cooling temperature of the water-cooled outlet slag can be adjusted according to the steam parameters and the steam demand.
Further, the high-temperature slag comprises nonferrous metal smelting slag and steel smelting slag. In some embodiments of the present utility model, the high temperature slag mainly contains a plurality of combinations of elements of carbon, zinc, silicon, iron, copper, sulfur, calcium and magnesium, which causes great differences in physical parameters of the slag, so that the cooling temperature of the first slag is adjusted according to different requirements for steam parameters and steam consumption in combination with different melting points and softening points caused by different melting points and softening points of the high Wen Zhaliao elements obtained by different nonferrous metallurgy and iron and steel smelting processes.
Further, the temperature of the first slag is 500-700 ℃, and the temperature of the second slag is below 100 ℃. Because the high Wen Zhaliao contains copper matte, the copper matte is in a semi-molten state at 800-900 ℃, has high viscosity and is easy to wall hanging; in order to realize long-term safe and stable operation of the equipment, the temperature of the first slag at the outlet of the water-cooling cylinder is controlled to be 500-700 ℃ and lower than the softening temperature of the slag, the viscosity of the slag is greatly reduced, and the subsequent air-cooling heat exchange is facilitated. Meanwhile, the temperature of the first slag is basically lower than the condition that the temperature in the three elements of combustion reaches the ignition point, so that secondary combustion of the slag caused by the entering of oxygen in air in the subsequent air cooling heat exchange process can be avoided. The subsequent air-cooled heat exchange is safe and stable.
Further, the hot air is sent to nonferrous metal smelting or iron and steel smelting process. In some embodiments of the utility model, hot air formed by heat exchange is sent into a leaching slag volatilizing kiln in a leaching slag zinc smelting process through a pipeline to participate in the combustion process of slag materials and fuel, and due to the improvement of air temperature, the consumption of anthracite or coke when the leaching slag materials undergo a physical-chemical reaction can be reduced, and the physical-chemical reaction of the slag materials and the fuel is more fully carried out, thereby being beneficial to energy conservation and emission reduction.
Further, in the cooling heat exchange process in the step S2, the temperature of cold air is 20-30 ℃, the temperature of hot air after heat exchange is more than 200 ℃, and the flow rate of the cold air is 20000m 3 -35000 m 3 And (3) the time per hour is matched with the air quantity for the main process. Therefore, the flow of the cold air is too small, the heat exchange efficiency is low, if the flow of the cold air is too large, a small amount of slag can be brought into the hot air pipeline, and the temperature of the hot air can be reduced, so that the subsequent utilization of the hot air is not facilitated.
Further, according to the temperature of Wen Zhaliao after indirect heat exchange according to different adjustment of the high Wen Zhaliao softening temperature and the requirement of hot air by the reaction of the raw materials of the nonferrous metal smelting or iron and steel smelting main process equipment and the fuel, the heat energy is fully recovered and utilized.
The device for implementing the high-temperature slag charge cooling and heat energy recycling method comprises a chute, a water-cooling cylinder and an air-cooling cylinder, wherein a water-cooling sleeve is arranged on the outer wall of the chute; the water cooling cylinder is provided with a plurality of cooling waterways, one end of the water cooling cylinder is provided with a first feeding pipe and a sealing piece, the other end of the water cooling cylinder is provided with a first discharging pipe, and the chute is in sealing connection with the first feeding pipe; one end of the air cooling cylinder is provided with a second feeding pipe and an air outlet, the other end of the air cooling cylinder is provided with a second discharging pipe and an air inlet, the second feeding pipe is connected with the first discharging pipe, a belt conveying system is arranged below the second discharging pipe, and a spraying device is arranged on the belt conveying system; a feeding air interface is arranged on a cylinder body at one end of the water-cooling cylinder, which is provided with a first feeding pipe; and the water-cooling cylinder and the air-cooling cylinder are both provided with rotating assemblies.
Therefore, when the height Wen Zhaliao is transferred into the water-cooling cylinder through the chute, the temperature is suddenly reduced after the water-cooling cylinder contacts with the water-cooling wall surface of the water-cooling sleeve, so that the wall of the height Wen Liaozha is prevented from being hung and stuck on the conveying channel; the rotating assembly can enable the water-cooling cylinder to rotate, so that the height Wen Zhaliao moves along the direction of the first discharging pipe along with the rotation of the water-cooling cylinder after entering the water-cooling cylinder from the first feeding pipe, the height Wen Zhaliao exchanges heat with the cooling waterway in the moving process in the water-cooling cylinder, and hot water generated in the heat exchange process can be recycled; then the high Wen Zhaliao is discharged from the first discharging pipe and enters the air cooling cylinder through the second feeding pipe, the rotating assembly can rotate the air cooling cylinder to enable the high-temperature material to move towards the second discharging pipe, meanwhile, cold air enters from the air inlet to exchange heat the high-temperature material, and hot air generated in the heat exchange process is discharged from the air outlet to be recycled; inert gas is introduced into the water-cooling cylinder through the feeding air port to discharge air in the water-cooling cylinder, the sealing piece can seal the first discharging pipe and the water-cooling cylinder, so that air is prevented from entering the water-cooling cylinder through a gap between the first discharging pipe and the water-cooling cylinder, and the high Wen Zhaliao in the chute can also prevent air from entering the water-cooling cylinder through the chute, so that the high Wen Zhaliao is prevented from secondary combustion in the cooling process of the water-cooling cylinder; the cooled materials in the air-cooled cylinder are discharged by the second discharging pipe and are sent into the slag bin through the belt conveying system, and the spraying device can further cool the slag, so that spontaneous combustion reaction of the slag due to long-term accumulation is avoided.
Further, a plurality of first spiral sheets are spirally arranged on the inner wall of the water-cooling cylinder along the axial direction of the water-cooling cylinder body, a plurality of first slag-pocket sheets are arranged between adjacent first spiral sheets, and the first slag-pocket sheets are perpendicular to the first spiral sheets; a plurality of third spiral sheets are spirally arranged in the air-cooled cylinder along the direction of the axis of the air-cooled cylinder, a plurality of third slag-pocket sheets are arranged between every two adjacent third spiral sheets, and the third slag-pocket sheets are perpendicular to the third spiral sheets. In this way, the first spiral sheet and the third spiral sheet have a flow guiding function, the first slag pocket sheet and the third slag pocket sheet have a slag lifting function, and the high Wen Zhaliao is pushed to the first discharge pipe from the first feed pipe of the water-cooling cylinder through the rotation of the water-cooling cylinder and the flow guiding of the first spiral sheet; and pushing the second slag charge from the second feeding pipe of the air cooling cylinder to the second discharging pipe through the rotation of the air cooling cylinder and the diversion of the third spiral sheet. In addition, through third flight and third pocket sediment piece function of raising the slag, make first slag charge and cold wind fully contact, guarantee sufficient heat transfer area and heat transfer time, improve heat transfer efficiency.
Further, the cooling water channel comprises a first water channel and a second water channel, wherein the first water channel is spirally arranged on the first spiral sheet along the axis direction of the water cooling cylinder, and the second water channel is arranged on the outer wall of the water cooling cylinder; the first waterway is provided with a plurality of second spiral slices, a plurality of second slag-pocket slices are arranged between the adjacent second spiral slices, and the second slag-pocket slices are perpendicular to the second spiral slices. Therefore, the spiral water pipe is adopted as the heat exchange surface, so that the heat exchange area can be increased.
Further, an annular water chamber is arranged at one end of the water cooling cylinder, which is far away from the first feeding pipe, an adapter is arranged on the annular water chamber, and a water inlet and a water return port are arranged on the adapter; an inner annular water chamber and an outer annular water chamber are arranged in the annular water chamber; one end of the inner ring water chamber is connected with the first waterway, and the other end of the inner ring water chamber is connected with the water return port; one end of the outer ring water chamber is connected with the second waterway, and the other end of the outer ring water chamber is connected with the water inlet; the one end that the water-cooling drum was equipped with first inlet pipe is provided with the hydroecium, hydroecium and first water route and second water route intercommunication.
Further, the water cooling cylinder is provided with a water chamber on the inner wall of one end of the first feeding pipe, and the water chamber is communicated with the first waterway and the second waterway. In this way, the cooling water enters the water chamber through the first water channel, and enters the second water channel after being distributed in the water chamber.
Further, a first refractory castable layer is arranged on the inner wall of the water-cooling cylinder, which is provided with one end of the first feeding pipe. Thus, the damage of the high temperature generated after the high Wen Zhaliao enters the water-cooling cylinder from the first feeding pipe to the inner wall of the water-cooling cylinder is avoided.
Further, a high temperature resistant layer is arranged on the inner wall of the air cooling cylinder, which is provided with one end of the second feeding pipe, and the high temperature resistant layer is a plastic pouring layer, a second refractory pouring layer and an aluminum silicate fiber felt layer in sequence along the radial direction of the air cooling cylinder. Thus, the damage of the high temperature generated after the high Wen Zhaliao enters the air cooling cylinder from the second feeding pipe to the inner wall of the air cooling cylinder is avoided.
In some embodiments of the utility model, inert gas is introduced into the water cooled cylinder through the feed wind interface. When the materials are stuck, feeding air (inert gas) is introduced through the feeding air interface, so that the slag is prevented from blocking the channel. In addition, the feeding wind can discharge air in the water-cooling cylinder, so that an oxygen-free environment is formed in the water-cooling cylinder, and secondary combustion of high-temperature materials in the water-cooling cylinder is avoided.
Further, the rotating assembly comprises a first rotating assembly arranged on the water-cooling cylinder and a second rotating assembly arranged on the air-cooling cylinder. The first rotating assembly is a transmission device in the prior art and comprises a first motor and a first speed reducer, a first sprocket is arranged on the first speed reducer, a second sprocket is arranged in the middle of a water-cooling cylinder body, the first motor is connected with the first speed reducer, and the water-cooling cylinder body is driven to rotate through chain transmission. In addition, the both ends of water-cooling drum barrel are provided with the support retaining ring respectively, the support retaining ring passes through the rotation wheel and is connected with water-cooling drum base roll.
Further, the second rotating assembly is a transmission device known in the prior art and comprises a second motor, a second speed reducer, a third sprocket and an air-cooled cylinder sprocket, wherein the air-cooled cylinder sprocket is arranged on a cylinder body of the air-cooled cylinder, the second motor drives the second speed reducer to rotate through a belt, an output shaft end of the second speed reducer drives the third sprocket to rotate through a coupler, and the third sprocket drives the air-cooled cylinder sprocket to rotate through a transmission chain, so that the air-cooled cylinder body is driven to rotate through chain transmission.
Further, the air cooling cylinder is in rolling connection with the air cooling cylinder supporting base through an air cooling cylinder rotating wheel.
Compared with the prior art, the utility model has the following beneficial effects:
(1) According to the utility model, the sealing piece and the feeding air interface are used for cooling the high Wen Zhaliao in the water-cooled cylinder in an oxygen-free environment, so that the secondary combustion of the high Wen Zhaliao can be avoided, the emission of pollutants is avoided, and the load of environmental protection facilities in the original process is not increased.
(2) According to the utility model, the water-cooled jacket is arranged on the chute, so that when the height Wen Zhaliao is transferred into the water-cooled cylinder through the chute, the water-cooled jacket is contacted with the water-cooled wall surface of the water-cooled jacket, the temperature is suddenly reduced, and the wall surface is high Wen Zhaliao and is separated from the bonding condition, so that the wall hanging phenomenon is avoided.
(3) The utility model adopts a heat exchange mode combining the water cooling cylinder and the air cooling cylinder, has high heat exchange efficiency, achieves the purposes of energy conservation and emission reduction, reduces the consumption of cooling water and saves water.
(4) The heat exchange device provided by the utility model has the advantages that the cooling water and the hot air after heat exchange are recycled, and the heat recycling rate of the high Wen Zhaliao is high.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is an enlarged schematic view of the structure of FIG. 1A;
FIG. 3 is an enlarged schematic view of the structure at B of FIG. 1;
FIG. 4 is an enlarged schematic view of the structure of FIG. 1 at C;
FIG. 5 is a schematic view of the water-cooled cylinder of the present utility model;
FIG. 6 is a schematic diagram of the cross-sectional structure of G-G in FIG. 5;
FIG. 7 is a schematic view of the H-H cross-sectional structure of FIG. 5;
FIG. 8 is a schematic view of the cross-sectional structure of D-D in FIG. 1;
FIG. 9 is a schematic cross-sectional view of E-E of FIG. 1;
FIG. 10 is a schematic cross-sectional view of F-F in FIG. 1.
Reference numerals illustrate: 1 water-cooled jacket slag chute, 101 chute, 102 water-cooled jacket, 2 water-cooled cylinder, 201 feed wind interface, 202 first refractory castable layer, 203 water-cooled cylinder outer wall, 204 water inlet, 205 water return, 206 first discharge pipe, 207 first rotating assembly, 208 first water path, 209 second water path, 210 first slag pocket sheet, 211 first spiral sheet, 212 water chamber, 213 first feed pipe, 214 second spiral sheet, 215 second slag pocket sheet, 216 adapter, 217 annular water chamber, 2171 inner annular water chamber, 2172 outer annular water chamber, 218 seal, 3 air-cooled cylinder, 301 air-cooled cylinder outer wall, 302 refractory layer, 303 air-cooled cylinder sprocket, 304 second feed pipe, 305 air outlet, 306 air inlet, 307 aluminum silicate fiber felt layer, 308 second refractory castable layer, 309 plastic castable layer, 310 second discharge pipe, 311 third slag pocket sheet, 312 third spiral sheet, 313 second rotating assembly, 314 cylinder air-cooled wheel, 315 air-cooled cylinder support base, 4 apparatus, 5 belt conveyor system; arrows in fig. 5 indicate the direction of the flow of the cooling water.
Detailed Description
The present utility model will be described in detail with reference to examples. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.
Examples
Referring to fig. 1-10, the high Wen Zhaliao cooling and heat energy recycling device comprises a water-cooled jacket slag chute 1, a water-cooled cylinder 2, an air-cooled cylinder 3 and a belt conveying system 5, wherein one end of the water-cooled cylinder 2 is in sealing connection with the water-cooled jacket slag chute 1, the other end of the water-cooled cylinder 2 is in sealing connection with the air-cooled cylinder 3 through a slag dropping pipe, the other end of the air-cooled cylinder 3 is connected with the belt conveying system 5, and a spraying device 4 is arranged on the belt conveying system 5.
The water-cooled jacket slag chute 1 comprises a chute 101 and a water-cooled jacket 102 arranged on the outer wall of the chute 101.
One end of the water-cooling cylinder 2 is provided with a first feeding pipe 213 connected with a slag falling port of the water-cooling sleeve slag falling chute 1, the other end of the water-cooling cylinder 2 is provided with a first discharging pipe 206 connected with the air-cooling cylinder 3, the outer wall 203 of the water-cooling cylinder 2 is provided with a first rotating assembly 207, the first rotating assembly 207 comprises a first motor and a first speed reducer, the first speed reducer is provided with a first sprocket, the middle part of a cylinder body of the water-cooling cylinder is provided with a second sprocket, the first motor is connected with the first speed reducer, and the cylinder body of the water-cooling cylinder is driven to rotate through chain transmission. In addition, the both ends of water-cooling drum barrel are provided with the support retaining ring respectively, and the support retaining ring passes through the rotor and rolls with water-cooling drum base and be connected.
As shown in fig. 5, a first slag-pocket 210 and a first spiral slice 211 are provided on the inner wall of the water-cooled cylinder 2. The one end that water-cooling drum 2 was equipped with first discharging pipe 206 is equipped with annular hydroecium 217, annular hydroecium 217 one end is connected with crossover sub 216, and the other end is connected with a plurality of cooling water routes, the cooling water route sets up on the barrel of water-cooling drum. The other end of the adapter 216 is provided with a water inlet 204 and a water return opening 205. The cooling water path includes a second water path 209 provided on the outer wall of the water-cooling cylinder 2 and a first water path 208 spirally provided along the axis of the water-cooling cylinder 2. The first waterway is a spiral water pipe, and a second spiral sheet 214 and a second slag pocket sheet 215 are arranged on the spiral water pipe.
The water cooling cylinder 2 is provided with a water chamber 212 at one end of the first feeding pipe 213, the water chamber 212 is connected with a second waterway 209, cooling water enters the annular water chamber 217 through the water inlet 204 in a water pump pressurizing mode, enters the water chamber 212 through the second waterway 209, then flows into the first waterway 208 from the water chamber 212, finally returns to the annular water chamber 217 after being subjected to heat exchange, and is discharged from the water return port 205. An inner annular water chamber 2171 and an outer annular water chamber 2172 are arranged in the annular water chamber 217; one end of the inner water chamber 2171 is connected with the first water path 208, and the other end is connected with the water return port 205; one end of the outer ring water chamber 2172 is connected with the second waterway 209, and the other end is connected with the water inlet 204; the water cooling cylinder 2 is provided with a water chamber 212 at one end provided with a first feeding pipe 213, and the water chamber 212 is communicated with a first water channel 208 and a second water channel 209.
The end of the water-cooling cylinder 2 provided with the first feeding pipe 213 is provided with a sealing piece 218, and the first feeding pipe 213 is in sealing connection with the water-cooling jacket slag chute 1.
The water-cooling cylinder 2 is also provided with a feeding air interface 201. When the materials are stuck, feeding air is introduced to prevent the channel from being blocked. The feeding wind is nitrogen.
As shown in fig. 2, a first refractory castable layer 202 is disposed on the inner wall of the cylinder body facing one end of the first feeding pipe 213 in the cylinder body of the water-cooling cylinder 2.
One end of the air cooling cylinder 3 is provided with a second feeding pipe 304 and an air outlet 305, and the other end is provided with a second discharging pipe 310 and an air inlet 306.
As shown in fig. 8 and 10, an air-cooled cylindrical sprocket 303 is disposed on an air-cooled cylindrical outer wall 301, a second rotating assembly 313 is in rolling connection with the air-cooled cylindrical sprocket 303 through a transmission chain, the second rotating assembly 313 comprises a second motor, a second speed reducer and a third sprocket, the second motor drives the second speed reducer to rotate through a belt, an output shaft end of the second speed reducer drives the third sprocket to rotate through a coupling, the third sprocket drives the air-cooled cylindrical sprocket 303 to rotate through the transmission chain, and the air-cooled cylindrical drum is driven to rotate through chain transmission. In addition, the air-cooled cylinder is in rolling connection with an air-cooled cylinder support base 315 through an air-cooled cylinder rotating wheel 314.
As shown in fig. 3, a high temperature resistant layer 302 is disposed at one end of the air cooling cylinder 3 near the second feeding pipe 304, and the high temperature resistant layer 302 includes an aluminum silicate fiber felt layer 307, a second refractory castable layer 308 and a plastic castable layer 309 which sequentially extend from the outer wall 301 of the air cooling cylinder to the inside of the cylinder.
As shown in fig. 9, a third slag-pocket piece 311 and a third spiral piece 312 are arranged at one end of the air-cooled cylinder 3 near the second discharging pipe 310.
As shown in fig. 4, the high-temperature slag cooling and heat energy recycling device further comprises a spraying device 4, and the spraying device 4 is arranged above the belt conveying system 5. The belt conveying system 5 is connected with the slag bin and transfers the sprayed and cooled slag into the slag bin.
The high Wen Zhaliao cooling and heat energy recycling method is carried out by using the device and comprises the following steps of:
s1, indirectly exchanging heat between a high Wen Zhaliao temperature of 1000 ℃ and desalting and deoxidizing cooling water of 95 ℃ under the condition of isolating air, wherein the adding amount of the high Wen Zhaliao is 20 tons/hour, obtaining a first slag material with the temperature of 500 ℃, and performing flash evaporation operation at 165 ℃ for the cooling water temperature after heat exchange, thus obtaining saturated steam with the vapor pressure of 4 kg;
s2, directly exchanging heat between the first slag and cold air at 25 ℃, wherein the inlet amount of the cold air is 20000m 3 The temperature of the second slag charge is reduced to be lower than 100 ℃ per hour, and the temperature of hot air at an air outlet after cold air heat exchange is 260 ℃;
s3, spraying and cooling the second slag material, then sending the second slag material into a slag bin, and sending hot air into a leaching slag volatilizing kiln in a leaching slag zinc smelting process through a pipeline.
If the flow of the cold air in the S2 is too small, the heat exchange efficiency is low, the temperature of slag in the second discharging pipe is higher than 100 ℃, and the material cooling is insufficient; however, the excessive flow of cold air at the air inlet can cause the temperature of hot air at the air outlet to be lower than 200 ℃, and meanwhile, small amount of broken powder of slag is brought into a hot air pipeline, so that the physical and chemical reaction of a volatilizing kiln in the leaching slag zinc smelting process is not facilitated, and the scheme for optimizing energy utilization is not adopted.
The temperature of the high-temperature slag is calculated according to 1000 ℃, which is equivalent to the heat value of Wen Zhaliao per ton of high-temperature slag exceeding 34 kg of standard coal, and the high-temperature slag has great economic benefit and market. The statistics of the energy saving benefits of the utility model are shown in Table 1.
Table 1 the energy saving benefit statistics of the present utility model
| Sequence number | Name of the name | Unit (B) | Numerical value |
| 1 | Annual kiln slag yield | t/a | 150000 |
| 2 | Slag tapping temperature of kiln slag | ℃ | 1000 |
| 3 | Kiln slag cooling temperature | ℃ | 100 |
| 4 | Kiln slag ratioHeat capacity (100 ℃ C.) | KJ/Kg·℃ | 0.92 |
| 5 | Kiln slag specific heat capacity (1000 ℃ C.) | KJ/Kg·℃ | 1.32 |
| 6 | Recovered enthalpy 150000 x (1000 x 1.32-100 x 0.92) | KJ/a | 184.2*10 9 |
| 7 | Loss of energy from the plant | ％ | 20 |
| 8 | Efficient recovery of enthalpy | KJ/a | 147.4*10 9 |
| 9 | Conversion standard coal | t/a | 5029 |
| 10 | Unit price of standard coal | Meta/t | 1500 |
| 11 | Annual energy saving benefit= (10 x 9) | Ten thousand yuan/a | 754.35 |
| 12 | Unit price of electricity | Meta/kwh | 0.51 |
| 13 | Annual run time (330 days) | Hours of | 7920 |
| 14 | Roughly estimating motor power of equipment | KW | 63.5 |
| 15 | Annual increase in electricity consumption | Ten thousand yuan/a | 25.65 |
| 16 | Annual maintenance costs | Ten thousand yuan/a | 49 |
| 17 | Cost of labor | Ten thousand yuan/a | 75 |
| 18 | Steam pre-estimated production | t/h | 3 |
| 19 | Average cost of desalting and deoxidizing | Meta/t | 9 |
| 20 | Water cost= (17×18×13) | Ten thousand yuan/a | 21.38 |
| 21 | Project projected benefits | Ten thousand yuan/a | 583.32 |
| 22 | Reducing carbon dioxide emissions | t/a | 13377 |
| 23 | Reducing sulfur dioxide emissions | t/a | 42.7 |
| 24 | Reducing nitrogen oxide emissions | t/a | 37.2 |
Where project expected benefit = 754.35-25.65-49-75-21.38 = 583.32 ten thousand yuan/a.
The foregoing examples are set forth in order to provide a more thorough description of the present utility model and are not intended to limit the scope of the utility model, and various modifications of the utility model, which are equivalent to those skilled in the art upon reading the present utility model, will fall within the scope of the utility model as defined in the appended claims.
Claims (10)
1. The high Wen Zhaliao cooling and heat energy recycling method is characterized by comprising the following steps of:
s1, indirectly exchanging heat between high-temperature slag and cooling water under the condition of isolating air to obtain first slag, and performing flash evaporation operation on the cooling water after heat exchange to obtain saturated steam;
s2, performing air cooling heat exchange on the first slag obtained in the step S1 to obtain a second slag and heat exchanged hot air;
s3, spraying and cooling the second slag material obtained in the step S2, and then delivering the second slag material into a slag bin, and recycling hot air.
2. The method for cooling and recycling heat energy according to claim 1, wherein the cooling water in step S1 is desalted and deoxidized water, and the temperature of the cooling water is 90-95 ℃.
3. The method for high Wen Zhaliao cooling and heat energy recycling according to claim 1, wherein the temperature of the cooling water after heat exchange in step S1 is 150-170 ℃ and the saturated vapor pressure is 3-5 kg.
4. The method of claim 1, wherein the first slag temperature is 500-700 ℃ and the second slag temperature is 100 ℃ or less.
5. The method for high Wen Zhaliao cooling and heat energy recycling according to claim 1, wherein the flow rate of cold air in the cold air heat exchange process in step S2 is 20000m 3 -35000m 3 Temperature of cold air per hourThe temperature of hot air after heat exchange is over 200 ℃ and is 20-30 ℃, and the hot air after heat exchange is sent to nonferrous metal smelting or iron and steel smelting processes.
6. A device for implementing the high-temperature slag charge cooling and heat energy recycling method as claimed in any one of claims 1 to 5, which is characterized by comprising a chute (101), a water-cooling cylinder (2) and an air-cooling cylinder (3), wherein a water-cooling sleeve (102) is arranged on the outer wall of the chute (101); a plurality of cooling waterways are arranged on the water cooling cylinder (2), a first feeding pipe (213) and a sealing piece (218) are arranged at one end of the water cooling cylinder (2), a first discharging pipe (206) is arranged at the other end of the water cooling cylinder, and the chute (101) is connected with the first feeding pipe (213) in a sealing way; one end of the air cooling cylinder (3) is provided with a second feeding pipe (304) and an air outlet (304), the other end of the air cooling cylinder is provided with a second discharging pipe (310) and an air inlet (306), the second feeding pipe (304) is connected with the first discharging pipe (206), a belt conveying system (5) is arranged below the second discharging pipe (310), and a spraying device (4) is arranged on the belt conveying system (5); a feeding air interface (201) is arranged on a cylinder body at one end of the water-cooling cylinder (2) provided with the first feeding pipe (213); the water cooling cylinder (2) and the air cooling cylinder (3) are both provided with rotating assemblies.
7. The device according to claim 6, wherein the inner wall of the water-cooling cylinder (2) is spirally provided with a plurality of first spiral slices (211) along the axial direction of the water-cooling cylinder body, a plurality of first slag-pocket slices (210) are arranged between the adjacent first spiral slices (211), and the first slag-pocket slices (210) are arranged vertically to the first spiral slices (211); a plurality of third spiral sheets (312) are spirally arranged in the air cooling cylinder (3) along the direction of the axis of the air cooling cylinder, a plurality of third slag-pocket sheets (311) are arranged between every two adjacent third spiral sheets (312), and the third slag-pocket sheets (311) are perpendicular to the third spiral sheets (312).
8. The high Wen Zhaliao cooling and thermal energy recycling device according to claim 7, wherein the cooling waterway comprises a first waterway (208) and a second waterway (209), the first waterway (208) is spirally arranged on the first spiral sheet (211) along the axis direction of the water-cooled cylinder, and the second waterway (209) is arranged on the outer wall of the water-cooled cylinder; a plurality of second spiral sheets (214) are arranged on the first waterway (208), a plurality of second slag-pocket sheets (215) are arranged between the adjacent second spiral sheets (214), and the second slag-pocket sheets (215) are perpendicular to the second spiral sheets (214).
9. The high Wen Zhaliao cooling and heat energy recycling device according to claim 8, wherein an annular water chamber (217) is arranged at one end of the water cooling cylinder (2) far away from the first feeding pipe (213), an adapter (216) is arranged on the annular water chamber (217), and a water inlet (204) and a water return port (205) are arranged on the adapter (216); an inner annular water chamber (2171) and an outer annular water chamber (2172) are arranged in the annular water chamber (217); one end of the inner annular water chamber (2171) is connected with the first waterway (208), and the other end of the inner annular water chamber is connected with the water return port (205); one end of the outer ring water chamber (2172) is connected with the second waterway (209), and the other end is connected with the water inlet (204); one end of the water cooling cylinder (2) provided with a first feeding pipe (213) is provided with a water chamber (212), and the water chamber (212) is communicated with a first waterway (208) and a second waterway (209).
10. The high Wen Zhaliao cooling and heat energy recycling device according to claim 6, wherein a first refractory castable layer (202) is arranged on the inner wall of the water-cooled cylinder (2) at one end provided with a first feeding pipe (213); the inner wall of the air cooling cylinder (3) provided with one end of the second feeding pipe (304) is provided with a high-temperature resistant layer, and the high-temperature resistant layer is sequentially provided with a plastic pouring layer (309), a second refractory pouring material layer (308) and an aluminum silicate fiber felt layer (307) along the radial direction of the air cooling cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311104649.3A CN117029373A (en) | 2023-08-29 | 2023-08-29 | High Wen Zhaliao cooling and heat energy recycling method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311104649.3A CN117029373A (en) | 2023-08-29 | 2023-08-29 | High Wen Zhaliao cooling and heat energy recycling method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117029373A true CN117029373A (en) | 2023-11-10 |
Family
ID=88624531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311104649.3A Pending CN117029373A (en) | 2023-08-29 | 2023-08-29 | High Wen Zhaliao cooling and heat energy recycling method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117029373A (en) |
-
2023
- 2023-08-29 CN CN202311104649.3A patent/CN117029373A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102559957B (en) | Centrifugal type fusion slag quenching and dry type granulating, and waste heat recovery power generation system and method | |
| CN103695581B (en) | A kind of blast furnace slag granulation and Exposure degree technique and equipment | |
| CN206219613U (en) | A kind of dry type blast-furnace cement sensible heat recovery system | |
| CN202066385U (en) | Novel waste heat recycling device | |
| CN202530095U (en) | Centrifugal molten slag dry granulation and waste heat recovery power generation system | |
| CN111271978B (en) | High-temperature slag waste heat recovery system | |
| CN104975117A (en) | Blast furnace slag overall treatment and sensible heat recovery power generation system and method | |
| CN107287442A (en) | Continuous copper smelting device and copper smelting method | |
| CN108707714A (en) | A kind of steel scrap and iron content solid waste multi-functional melt furnace | |
| CN211972386U (en) | High-temperature molten slag granulating device | |
| CN201628476U (en) | Direct lead smelting furnace | |
| CN211424426U (en) | Novel slag cooler | |
| CN214193316U (en) | Liquid blast furnace slag dry-type granulation treatment device | |
| CN117029373A (en) | High Wen Zhaliao cooling and heat energy recycling method and device | |
| CN112113438A (en) | High-temperature slag waste heat recycling system | |
| CN220707866U (en) | High Wen Zhaliao cooling and heat energy recycling device | |
| CN111206131A (en) | High-temperature molten slag granulating device | |
| CN213747936U (en) | High-temperature slag waste heat recycling system | |
| CN201852070U (en) | Flue type shell-and-tube heat exchanger of waste heat boiler | |
| CN106989608A (en) | Hot air power type granulating metallurgy liquid slag waste heat recovery system and method | |
| CN209485079U (en) | It is a kind of using smelting furnace waste residue and the recovery system of waste gas residual heat resource | |
| CN103047854A (en) | Energy-saving rotary kiln with long service life | |
| CN207672004U (en) | A kind of atmospheric gasification stove enclosed water-cooling circulating system | |
| CN112146452A (en) | Cooling system for metallized pellet of rotary hearth furnace | |
| CN208733152U (en) | A kind of steel scrap and iron content solid waste multi-functional melt furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |