High-temperature steel slag spiral cone heat exchange cooling machine

Abstract

The invention discloses a spiral cone heat exchange cooling machine for high-temperature steel slag, and provides a cooling machine with a novel structure. The device comprises a rotating disc, a cover body and a power driving module, the rotating disc is provided with a conical contour with the high center and the low periphery and is provided with a spiral discharging channel arranged from top to bottom, water cooling pipes are arranged on the bottom face or / and the side face of the spiral discharging channel, and the water cooling pipes are arranged in a grouped mode and divide a heat exchange area of the rotating disc into a high-temperature area and a low-temperature area. The water cooling pipelines in the two areas respectively form independent cooling pipeline systems; the power driving module is mechanically connected with the turntable and drives the turntable to rotate, and when the turntable rotates, the internal steel slag material slides towards the lower side under the action of self weight and rotation of the turntable. And the high-temperature steel slag is in a slow propelling state and does not directly impact and strike the water cooling pipe. And the path of the spiral discharging channel is longer, so that heat exchange can be fully carried out.

Description

Technical Field

[0001] The invention relates to the technical field of special equipment for cooling high-temperature steel slag. Background Art

[0002] At present, there are three methods for cooling high-temperature steel slag: hot stuffing method, hot pouring method, drum method, and wind quenching method. Different cooling methods correspond to different cooling equipment. For example, CN221898270U discloses a water-cooled drum-type slag cooler, which is a new structure of drum-type cooling equipment. The water-cooled drum-type slag cooler includes a frame, on which a sleeve connected to the frame is mounted through a driving component, and an outer cylinder is mounted inside the sleeve; an inner cylinder is mounted inside the outer cylinder, and there are two symmetrically distributed dividing strips in the gap between the outer cylinder and the inner cylinder, and the same ends of the two dividing strips are provided with water guide holes, and the inner cylinder is provided with a circulation component for cooling the slag. The water-cooled drum-type slag cooler provided by the utility model can be provided with a circulation component inside the inner cylinder, and the circulation pipe in the circulation component can be inserted into the slag during the process of the inner cylinder turning the slag, thereby increasing the contact area between the circulation pipe and the slag. The problem with this type of slag cooler is that it uses a rotary drum design. During the rotation process, the high-temperature slag is continuously thrown upward in the drum. The upward and impacting action of the slag causes impact on the internal water-cooling pipes, which can easily cause the water-cooling pipes to be damaged. In this process, small particles and dust in the high-temperature slag will be raised, so the water-cooled drum slag cooler needs to be equipped with special dust removal equipment.

[0003] Therefore, based on the above considerations, the present invention invents a cooler using a spiral cone heat exchange structure to replace the existing water-cooled drum slag cooler, which is a special slag cooling equipment for high-temperature steel slag. Summary of the invention

[0004] In order to solve the deficiencies of the prior art, the present invention provides a high-temperature steel slag spiral cone heat exchange cooler, which is specially used for rapid cooling of high-temperature steel slag. The initial temperature of the high-temperature steel slag is between 1100°C and 1300°C, meeting the requirements of high-temperature use environment.

[0005] The technical solution adopted by the present invention to solve the technical problem is: The high-temperature steel slag spiral cone heat exchange cooler includes a turntable, a cover, and a power drive module, and is characterized by: The turntable has a conical profile with a high center and low surroundings, and the high point at the center of the turntable is the feed end, and the low points around the turntable are the discharge ends, and a spiral discharge channel arranged from top to bottom is formed by a spiral wall between the feed end and the discharge end, and a water-cooling pipe is arranged on the bottom surface or / side of the spiral discharge channel, and the water-cooling pipes are arranged in groups and divide the heat exchange area of ​​the turntable into a high-temperature zone and a low-temperature zone, wherein the high-temperature zone is a circular ring-shaped area close to the feed end, and the low-temperature zone is a circular ring-shaped area close to the discharge end, and the water-cooling pipes in the two areas each form an independent cooling pipe system, and form independent closed loops through different booster pumps and pipes, respectively, the water-cooling pipes in the high-temperature zone are connected to the high-temperature water-cooling circulation system through pipes and rotary joints, and the water-cooling pipes in the low-temperature zone are connected to the low-temperature water-cooling circulation system through pipes and rotary joints; The cover is fixedly installed above the turntable through a steel structure, and a conical space for cooling the high-temperature slag is formed between the cover and the turntable; The power drive module is mechanically connected to and drives the turntable to rotate. When the turntable rotates, the internal slag material slides sideways and downwards under the action of its own weight and the rotation of the turntable.

[0006] It also includes a material collection groove, which is arranged at the side of the discharge section of the turntable and collects the slag material discharged from the outer periphery of the turntable.

[0007] A material drop opening is provided at the bottom of the aggregate groove, and a plurality of scraper plates are fixed on the periphery of the edge of the turntable. The scraper plates are located in the aggregate groove and scrape the steel slag aggregate in the aggregate groove.

[0008] The rotary joint is located at a colinear position with the rotation axis of the turntable.

[0009] The water cooling pipes are arranged from top to bottom along the conical surface of the turntable to form a spiral wall, and the water cooling pipes are welded in parallel in the height direction to form the spiral wall, and a fixed rib is arranged on the back side of the spiral wall.

[0010] The water cooling pipe is fixedly installed along the bottom plate of the spiral discharge channel.

[0011] The water cooling pipe is arranged on the side surface of the spiral wall of the spiral discharge channel and / or on the bottom plate of the bottom.

[0012] A conical material distribution protrusion protruding upward is arranged at the center of the rotating disk, and the conical material distribution protrusion faces the material inlet of the cover body. A spiral protrusion is arranged in the conical material distribution protrusion.

[0013] An air distribution duct is arranged on the lower side of the conical material distribution protrusion, and an air distribution nozzle is arranged on the conical material distribution protrusion. The air distribution duct is connected to the blower through a rotating joint, and blows cold air to the feed inlet above the conical material distribution protrusion by blowing. The cold air cools the high-temperature slag surface at the moment of falling.

[0014] The high-temperature water-cooling circulation system is composed of a flash tank, a circulation pump, pipelines, valves, instruments, and a PLC intelligent control module.

[0015] The low-temperature water cooling circulation system is composed of a tap water pipe, a booster pump, a plate heat exchanger, a cooling tower, pipelines, valves, instruments, and a PLC intelligent control module.

[0016] The power drive module is composed of a chain drive assembly and a speed regulating motor, and drives the turntable to rotate by speed regulation.

[0017] The turntable is a high temperature resistant structure formed by a steel plate and refractory bricks laid on the surface of the steel plate.

[0018] The beneficial effects of the present invention are: The turntable in the slag cooler rotates in a horizontal plane along the vertical axis. During the rotation, the high-temperature slag moves slowly in the spiral discharge channel. Since a water-cooling pipe is provided on the bottom plate or the partition of the spiral discharge channel, the high-temperature slag exchanges heat with the water medium in the water-cooling pipe during the slow advancement. Therefore, the high-temperature slag can be cooled and high-temperature saturated steam can be generated. The high-temperature slag can be directly used in industrial production. During the above cooling process, the high-temperature slag is in a slow advancement state and does not directly impact or clash the water-cooling pipe, so the service life of the water-cooling pipe can be significantly extended. The path of the spiral discharge channel is longer, which is convenient for full heat exchange. By controlling the rotation speed of the turntable and the forward speed of the internal slag, the discharge temperature of the slag can be controlled within a reasonable range.

[0019] Different from the traditional air cooling, the conical space between the cover and the turntable in the present invention is in a relatively closed state, and there is no sharp air flow. This structure realizes that there is no need to feed during the cooling process of the slag, reduces the oxidation of iron in the slag, and is beneficial to the recovery of granular steel and slag concentrate.

[0020] During the high-temperature slag cooling process, the high-temperature slag does not have any throwing or turning action in the spiral discharge channel, and does not generate dust, so there is no need to configure special dust removal equipment, saving investment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is the implementation structure 1 of this cooling machine.

[0022] Figure 2 This is the second implementation structure of this cooling machine.

[0023] Figure 3 This is the schematic diagram of the cooling system for the high temperature area.

[0024] Figure 4 This is the schematic diagram of the cooling system for the low temperature zone.

[0025] Figure 5 This is the plan view of the turntable.

[0026] Figure 6 This is a three-dimensional structural diagram of the spiral heat exchange wall unit.

[0027] Figure 7 This is the first arrangement style of the spiral water cooling tube.

[0028] Figure 8 This is the second arrangement style of the spiral water cooling tube.

[0029] Fig. 9 This is the third arrangement style of the spiral water cooling tube.

[0030] Fig.10 This is the fourth arrangement style of the spiral water cooling tube.

[0031] Fig.11 This is a vertical view of the steel frame support system.

[0032] Fig.12 This is a plan view of the steel frame support system.

[0033] Fig.13 Schematic diagram of the division of low temperature and high temperature zones on the turntable.

[0034] In the figure: 101 steel plate, 102 refractory brick, 103 I-beam steel frame, 104 track, 105 metal chain, 106 ground wheel assembly, 107 chain drive assembly, 108 limit assembly; 110 is a turntable, 111 is a feeding end, 112 is a discharging end; 120 spiral discharge channel; 130 spiral wall, 131 spiral heat exchange wall unit, 13 water cooling tube, 132 joint seam; 1311 a first water supply branch pipe, 1312 a second water supply branch pipe, 1313 a third water supply branch pipe, 1314 a rotary joint; 1321 a first water return branch pipe, 1322 a second water return branch pipe, 1323 a third water return branch pipe; 133 auxiliary water cooling pipe; 134 alloy separator; 135 spiral water cooling tube; 140: a material collecting groove, 141: a material dropping opening; 150 scraper plate; 200 cover body, 210 steel structure, 220 conical space, 230 feed inlet, 240 conical material dividing protrusion, 241 spiral protrusion; 300 flash tank; 400 plate heat exchanger, 410 cooling tower. DETAILED DESCRIPTION

[0035] This implementation section will be combined with the instructions attached Figure 1 To Attachment Fig.13 The core heat exchange structure of this high-temperature steel slag spiral cone heat exchange cooler is explained in detail.

[0036] refer to Figure 1 and Figure 2 , Figure 1 and Figure 2 The cross-sectional views of two spiral cone heat exchange coolers with different structures are shown respectively. Both coolers with these two structures are within the protection scope of the present invention.

[0037] The core structure of the cooler is a turntable 110 with a spiral discharge channel 120, and the spiral discharge channel 120 is formed in the following manner: the turntable 110 is a conical profile component, and the high point at the center of the turntable is the feed end 111, and the low point at the circumference of the turntable is the discharge end 112. A spiral discharge channel 120 arranged from top to bottom is formed by a spiral wall 130 between the feed end and the discharge end, and the spiral discharge channel 120 spirals down from the oblique upper part of the turntable until it reaches the edge of the turntable 110.

[0038] The spiral wall 130 may be a counterclockwise spiral or a clockwise spiral.

[0039] Optimally, the spiral discharge channel 120 is designed to have equal width.

[0040] The spiral wall 130 may be a solid alloy steel rib or a water-cooling pipe assembly.

[0041] As a specific construction style, refer to Figure 6 and Figure 7 The spiral wall 130 described in this embodiment is formed by splicing multiple independent spiral heat exchange wall units 131, and the splicing seam 132 between two spiral heat exchange wall units 131 is as small as possible, or the splicing seam is filled, for example, using mud sealing for filling. When the splicing seam is small enough, mud sealing may not be performed.

[0042] Furthermore, the height of the spiral walls on both sides of the spiral discharge channel 120 gradually decreases from the feed end to the discharge end 112. Figure 1 , Figure 2As shown in the diagram, that is, the height of the spiral heat exchange wall unit 131 located in the high temperature zone is significantly greater than the height of the spiral heat exchange wall unit 131 located in the low temperature zone. This design is conducive to forming a sufficient heat exchange path and obtaining enough supersaturated high-temperature water.

[0043] As described above, the spiral wall 130 is formed by splicing a plurality of independent spiral heat exchange wall units 131. Figure 6 Each spiral heat exchange wall unit 131 is composed of water cooling pipes 13 arranged in parallel in the height direction. For example, multiple water cooling pipes are welded and fixed to form a spiral heat exchange wall unit 131 with a wall shape having a thickness, that is, the molding of the spiral wall is directly made of water cooling pipes, and it is a hollow structure with heat exchange function. Each section of the spiral heat exchange wall unit 131 is arranged 360 degrees, and the beginning and end are not closed, and the radius of the starting end is small and the radius of the ending end is large, forming a pitch of the above-mentioned spiral wall. By introducing desalinated softened water medium into the water cooling pipe 13 of the spiral heat exchange wall unit 131, and making the desalinated softened water medium contact in a moderate flow state under the action of the booster pump, by making the high-temperature steel slag in the spiral discharge channel 120 directly contact with the outer wall of the spiral water cooling pipe 132, it is easy to understand that the desalinated softened water medium in the multiple water cooling pipes 13 of each group of spiral heat exchange wall units is basically in an isothermal state, realizing a water-cooled wall with a wall-type hollow structure. Thus, the heat exchange between the high-temperature steel slag and the desalted and softened water medium is realized. The heat exchange process makes the high-temperature steel slag lower in temperature and the desalted and softened water medium rise in temperature, thus realizing the conversion of the sensible heat of the high-temperature steel slag into high-temperature water (desalted and softened water medium) of a certain pressure and temperature. Finally, the high-temperature and high-pressure hot water is flashed by the high-temperature water cooling circulation system to produce saturated steam of a certain quality, and the obtained high-quality saturated steam is used as industrial steam for industrial production. Alternatively, the low-temperature water cooling circulation system is used to produce low-quality hot water for life or production use.

[0044] refer to Figure 5 The above-mentioned spiral heat exchange wall units 131 are multiple, and are connected end to end to form a nearly continuous spiral discharge channel 120. The spiral discharge channel 120 is the propulsion path of the high-temperature steel slag, that is, the high-temperature steel slag is propulsed in this spiral discharge channel 120. Through the design of the spiral structure, the high-temperature steel slag has a sufficiently long heat exchange path, which is of positive significance for ensuring the heat exchange effect, and can realize the miniaturization and three-dimensionalization of the equipment.

[0045] To further explain, the heat exchange area in the spiral cone heat exchange cooler is divided into a high temperature area A and a low temperature area B. For the convenience of distinction and illustration, Figure 5A schematic diagram of a dividing line L is given in the figure. This dividing line does not exist in the actual space. The dividing line is only displayed to facilitate the understanding of this technology. The high-temperature zone A is a circular ring area near the feed end 111, and the low-temperature zone B is a circular ring area near the discharge end 112. The spiral water-cooling pipes in the two areas each form an independent cooling pipe system, that is, they form independent closed loops through different booster pumps and pipes. The water-cooling pipes in the high-temperature zone are connected to the high-temperature slag water cooling system through pipes, and the water-cooling pipes in the low-temperature zone are connected to the low-temperature slag water cooling system through pipes. The cooling is achieved by grading and different supersaturated high-temperature hot water and ordinary hot water are obtained. The working principle of each zone is explained in more detail below: The high temperature zone A of the spiral cone heat exchange cooler aims to cool the high temperature steel slag from more than 1000°C to about 300°C, and at the same time obtain high pressure, high temperature, supersaturated hot water with a pressure of 2.0MPa and a temperature of 200°C. This goal is achieved through the heat exchange of the spiral water-cooling pipes in the high temperature zone, and the desalted and softened water medium in the water-cooling pipes in this zone is based on the reverse flow direction. The so-called reverse flow means that if the water-cooling pipes in this zone are arranged in a clockwise direction, the desalted and softened water medium in the pipe is arranged in a counterclockwise direction, that is, the flow direction of the desalted and softened water medium is opposite to the flow direction of the high temperature steel slag in the spiral discharge channel 120, so as to obtain the best heat exchange effect. This heat exchange effect is not only reflected in the heat exchange efficiency (stronger), but also in the outlet water temperature of the high temperature, high pressure, supersaturated hot water (higher). Reference Figure 3 The high-temperature supersaturated hot water generated by heat exchange enters the flash tank 300, and the pressure is reduced and flashed to produce steam. The operating pressure of the flash tank is 0.8MPa, and saturated steam and saturated condensate at 175.4℃ are produced. The saturated steam produced enters the steam network through the branch line for use, and the saturated condensate (desalted softened water) returns to the spiral cone heat exchange cooler through the booster circulation pump for steel slag heat exchange again. After the saturated condensate temperature rises to 200℃ in the heat exchange tube 13 again, it enters the flash tank for flash evaporation to produce steam, and the cycle is repeated to produce stable saturated steam. At the same time, it is necessary to continuously replenish the amount of water reduced after flash evaporation to maintain the overall thermal balance and material balance. The saturated steam produced in this high temperature zone is high-quality steam.

[0046] The low temperature zone B of the spiral cone heat exchange cooler further cools the medium and high temperature steel slag of about 300℃ to low temperature steel slag below 120℃ in the area, and produces hot water at the same time. The temperature of the hot water obtained by heat exchange in the low temperature zone B is theoretically higher than 60℃. Figure 4The hot water can be used to heat up domestic or production water through heat exchange in the plate heat exchanger 400, for example, warm water for domestic and production use in the factory area to meet the requirements of subsequent transportation and storage. If the hot water does not need to be stored, the generated hot water can also be passed through the cooling tower 410 to reduce the hot water temperature to below 45°C, and then the circulating pump can be transported to the low temperature area again for circulating heat exchange, forming an independent system. The water system uses a cooling tower for closed circulation.

[0047] The discharge end 112 of the spiral discharge channel 120 is located on one side of the outer periphery of the turntable. An aggregate groove 140 is arranged in an annular manner on the outer side of the turntable. The aggregate groove 140 is used to collect the slag material unloaded from the outer periphery of the turntable, and a drop opening 141 is opened at a certain position of the aggregate groove 140. At the same time, a plurality of scraper plates 150 are fixed on the outer periphery of the edge of the turntable 110. The scraper plates are welded or bolted to the edge of the turntable 110, and the scraper plates 150 are located in the aggregate groove and scrape the slag aggregate in the aggregate groove. The specific process is that when the turntable 110 rotates, the scraper plates 150 are driven to slide along the aggregate groove, and the slag in the aggregate groove is scraped during the sliding process. During the scraping process, the slag moves along the aggregate groove and when it reaches the drop opening, the slag is discharged from the drop opening 141 of the aggregate groove.

[0048] Furthermore, a transfer machine (such as a transfer vehicle) may be provided outside the drop port 141 to transfer the cooled steel slag.

[0049] The high temperature water cooling circulation system is composed of a flash tank 300, a circulation pump, pipes, valves, instruments, and a PLC intelligent control module. The composition drawing is referenced Figure 3 , where the water supply tank stores desalinated softened water medium.

[0050] The above-mentioned low-temperature water cooling circulation system is composed of a water pipe, a booster pump, a plate heat exchanger 400, a cooling tower 410, pipes, valves, instruments, and a PLC intelligent control module. Figure 4 .

[0051] Figure 1 and Figure 2 In the embodiment shown in the figure, the spiral cone heat exchange cooler realizes cooling of the high-temperature steel slag and heating of the water medium by heat conduction between the water medium in the water-cooling pipe 132 and the high-temperature steel slag outside the pipe.

[0052] The heat exchange space in the spiral cone heat exchange cooler is heat exchanged in sections to achieve graded heat exchange, and each circumference is a heat exchange unit. The high-temperature area can produce high-quality supersaturated hot water and supersaturated steam (heat recovery byproduct), directly obtaining high-quality steam heat source, and the high-quality supersaturated steam can be directly used for production. At the same time, low-quality hot water is obtained in the low-temperature area.

[0053] The above-mentioned turntable is dynamically rotatable, and the specific structure of the rotation driving structure is as follows: refer to Figure 1 , Fig.11 and Fig.12 The main body of the turntable 110 is a high-temperature resistant structure formed by a steel plate 101 and refractory bricks 102 laid on the surface of the steel plate. Specifically, the steel plate sheet metal is bent to form a conical profile, which is the core component of the device. The cone formed by the steel plate 101 is placed upright, and then an I-beam steel frame 103 is welded under the steel plate to form a supporting structure. A track 104 and a metal chain 105 are provided at the bottom of the I-beam steel frame, wherein the track is arranged in four groups and the center of a circle and is installed at the bottom of the I-beam steel frame. The metal chain is installed at the side position of the bottom of the I-beam steel frame and surrounds the side of the I-beam steel frame. A ground wheel assembly 106 is installed on the foundation below the above-mentioned track to support the I-beam steel frame, wherein at least one group of ground wheel assemblies has a restraining property, so that the I-beam steel frame can rotate along the track and the ground wheel. At least one set of chain drive components 107 is installed on the foundation. Specifically, the chain drive component includes a drive motor, a reducer and a metal sprocket. The drive motor and reducer in this embodiment are installed vertically, and the metal sprocket is installed horizontally on the above-mentioned speed reducer power output shaft. The metal sprocket is engaged with the above-mentioned metal chain and drives the above-mentioned I-beam steel frame to rotate. The above-mentioned turntable is driven to rotate during the rotation of the I-beam steel frame. Therefore, the chain drive component 107 is a rotating power drive module. And a side stop limit component 108 is set at the inner annular edge position of the steel frame to limit the horizontal direction.

[0054] The above-mentioned driving motor is preferably a speed-regulating motor, so that the rotation speed of the turntable can be adjusted. The adjustment process can make the traveling speed of the slag adjustable, thereby controlling the cooling time and finally controlling the slag discharge temperature.

[0055] The power drive module may also have other styles, such as being driven by a gear ring transmission, or using a belt transmission, which will not be described here one by one, and are all within the scope of the implementation of the present invention.

[0056] Meanwhile, during the rotation of the turntable, the collecting groove 140 is used to collect the steel slag from the turntable, and is a component for temporarily storing the steel slag, and realizes the orderly discharge of the cooled steel slag.

[0057] It also includes a cover body 200, which is fixedly installed directly above the turntable through a steel structure 210. The cover body also has a conical profile. An equally spaced conical space 220 is formed between the cover body and the turntable. The space is also a high-temperature and high-heat space, and the air in the internal space is in a relatively static state, which can effectively prevent the oxidation of the steel slag during the cooling process.

[0058] In accordance with the principle of facilitating maintenance, the heat exchange space should have sufficient space.

[0059] Furthermore, the cover body 200 is a composite structure composed of a metal shell and internal refractory bricks, wherein the metal shell has the advantage of being easy to shape, and the refractory bricks have the advantage of being resistant to high temperatures.

[0060] Furthermore, it is determined whether to provide a thermal insulation layer, such as thermal insulation rock wool, on the outer side of the cover body according to needs.

[0061] Furthermore, it is determined whether to lay a metal pipe on the inner surface of the cover body 200 according to needs, and connect the metal pipe to a water cooling system, so as to cool the cover body 200 by heat exchange of the metal pipe, thereby forming an independent water cooling facility.

[0062] The physical center position of the above-mentioned cover body 200 is the feed port 230, that is, the feed port of the high-temperature steel slag. Below the feed port is the physical center position of the turntable 110. In order to facilitate the deceleration of the steel slag and reduce the vertical impact on the turntable, an upwardly protruding conical material distribution protrusion 240 is arranged at the center position of the turntable corresponding to the feed port. The conical material distribution protrusion faces the feed port of the cover body. When the high-temperature steel slag falls downward under the action of gravity, the high-speed falling steel slag collides with the conical material distribution protrusion and rebounds the steel slag to the side, and finally falls into the turntable. Figure 1 .

[0063] Furthermore, a spiral protrusion 241 is provided in the above-mentioned conical material distribution protrusion 240 for controlling the speed of material distribution, referring to Figure 2 .

[0064] Figure 1 and Figure 2 , two different styles of conical dividing protrusions are displayed respectively.

[0065] Furthermore, the surface of the conical material distribution protrusion 240 is a refractory material layer. An air distribution pipe is arranged on the lower side of the conical material distribution protrusion, and an air distribution nozzle is arranged on the conical material distribution protrusion 240. The air distribution pipe is connected to the blower through a rotary joint, and blows cold air to the feed inlet above the conical material distribution protrusion by blowing air, that is, the air distribution system cools the surface of the steel slag during the falling process. In this process, only the high-temperature steel slag surface at the moment of falling is cooled, thereby solving the problem of steel slag adhesion during the falling process and ensuring that the steel slag is even and effective.

[0066] Furthermore, the lower edge of the cover body 200 is in contact with the outer edge of the aggregate groove of the turntable, and a refractory material is arranged between the two to form a dynamic seal, such as thermal insulation rock wool. Through this structure, a detachable assembled connection is formed between the cover body and the aggregate groove to meet maintenance and needs.

[0067] Furthermore, an inspection door is provided somewhere on the cover body 200, which can be quickly opened and inspected by opening and closing. This structure facilitates rapid maintenance of the equipment.

[0068] About the innovation of water cooling tube arrangement in this spiral cone heat exchange cooler: Style 1, reference Figure 6 and Figure 7 , spiral lofting is performed on the conical surface of the above-mentioned turntable 110 from the feed end to the discharge end. The so-called lofting refers to drawing on the conical surface to form the fixed points of the spiral water-cooling pipe. The spiral lofting expansion diagram in this style is a single spiral. After the lofting is completed, the water-cooling pipe is made of metal wear-resistant pipes, and the spiral heat exchange wall unit 131 is further made. The spiral heat exchange wall unit 131 is a 360-degree design, and a plurality of spiral heat exchange wall units are formed by welding a plurality of water-cooling pipes in parallel in the height direction, forming a three-dimensional partition shape. Furthermore, in order to enhance the fixing strength between the spiral heat exchange wall unit 131 and the turntable diameter, a fixed rib plate is provided on the back side between the turntable and the enhanced spiral heat exchange wall unit ( Figure 6 (not shown in the figure), the fixed ribs support the enhanced spiral heat exchange wall unit in the lower position in the gravity direction, and the support can effectively improve the support for the slag particles and avoid deformation of the enhanced spiral heat exchange wall unit.

[0069] The high point of each enhanced spiral heat exchange wall unit 131 is connected through a vertical first water supply branch 1311, and the first water supply branches of multiple enhanced spiral heat exchange wall units are secondarily connected and aggregated to the second water supply branch 1312. The second sequential branch is preferably arranged horizontally, and the horizontally arranged second water supply branch is connected to the third water supply branch 1313 through a tee, and the outer side of the third water supply branch is connected to a rotary joint 1314.

[0070] Similarly, the low point of each enhanced spiral heat exchange wall unit 131 is connected through a vertical first return water branch 1321, and the first return water branches of multiple enhanced spiral heat exchange wall units are secondarily connected and aggregated to the second return water branch 1322. The second return water branch is preferably horizontally arranged, and the horizontally arranged second return water branch is connected to the third return water branch 1323 through a tee, and the outer side of the third return water branch is connected to a rotary joint 1314.

[0071] The above-mentioned rotary joint 1314 is located in a colinear position with the rotation axis of the turntable.

[0072] The above-mentioned branches are named according to the direction of water flow. Under working conditions, the water temperature of the delivery water is significantly lower than the water temperature of the return water.

[0073] Refractory bricks are laid on the surface of the above-mentioned turntable, and a propulsion channel for slag materials is formed between the turntable and the spiral tubes on both sides. When the turntable rotates clockwise, the internal slag materials slide downward under the action of the driving force of the turntable due to its own weight. The sliding speed of the slag is controllable. Specifically, the sliding propulsion speed of the slag can be controlled by controlling the rotation speed of the turntable.

[0074] Furthermore, converting the above-mentioned turntable driving power from a constant speed drive to a periodic motion with a combination of acceleration and deceleration can more quickly control the spiral sliding speed of the internal slag. Whether it is a uniform or pulsed acceleration and deceleration motion, it is within the protection scope of the present invention.

[0075] Style 2 refer to Figure 8 On the basis of style one, the following additional configuration is made: synchronously, a spiral auxiliary water cooling pipe 133 is arranged in the turntable, and the auxiliary water cooling pipe 133 is also a 360-degree spiral. It is arranged on the upper surface of the turntable. Specifically, it is a fixed water cooling pipe set on the bottom plate of the spiral steel slag pushing channel. For the convenience of distinguishing from the first embodiment, the water cooling pipe is marked as an auxiliary water cooling pipe 133. For the convenience of distinguishing from the spiral heat exchange wall unit, it is called a spiral heat exchange bottom. The auxiliary water cooling pipe 133 is also arranged in parallel, and the water inlet end and the water return end of the auxiliary water cooling pipe are also connected to the first water inlet branch and the first water return branch. In this way, the steel slag is directly in contact with the bottom and side of the spiral conveying channel, and heat is exchanged with the soft water medium in the water cooling pipe. Compared with style one, this style increases the number of water cooling pipes in the contact area of ​​the spiral conveying channel per unit area, so the heat exchange effect is better. Combined with the above-mentioned turntable rotation action, the turntable can rotate at a higher speed, shortening the heat exchange path. Under the same heat exchange effect, the equipment can be made more compact.

[0076] Style Three refer to Fig. 9The structure of this style is as follows: First, water-cooling pipes are not arranged in the spiral walls on both sides of the spiral discharge channel 120, but traditional high-temperature resistant solid alloy partitions 134 are used. That is to say, unlike style 2, in this embodiment, the alloy partitions forming the two sides of the spiral discharge channel 120 are solid structures and no water-cooling pipes are arranged inside. The spiral discharge channel 120 is formed by a spiral partition, for example, welded on the ramp of the turntable 110. This channel is also the discharge channel for high-temperature steel slag. A spiral water-cooling pipe is arranged in the spiral discharge channel 120 of the turntable. In order to facilitate the distinction from the first embodiment, the water-cooling pipe is marked as an auxiliary water-cooling pipe 133. In essence, the material and specification of the auxiliary water-cooling pipe are exactly the same as those of the water-cooling pipe in the first embodiment. The auxiliary water cooling pipe is also a 360-degree spiral, which is arranged on the upper surface of the turntable. Specifically, the auxiliary water cooling pipe is fixedly installed on the bottom plate of the spiral discharge channel of the spiral, which is called the spiral heat exchange bottom. The auxiliary water cooling pipe 133 is also arranged in parallel, and the water inlet end and the water return end of the auxiliary water cooling pipe are also connected to the first water inlet branch pipe and the first water return branch pipe. In this way, the spiral heat exchange bottom of the spiral discharge channel 120 is in direct contact with the steel slag, and heat is exchanged with the soft water medium in the water cooling pipe. This method only has water cooling pipes on the slope bottom plate of the turntable, and the dense arrangement can also play a role in heat exchange.

[0077] Style 4 refer to Fig.10 On the basis of the third style, a water cooling pipe is arranged on the inner wall of the alloy partition 134. For the convenience of distinguishing from the first embodiment, the water cooling pipe is marked as a spiral water cooling pipe 135. The spiral water cooling pipe 135 is arranged in parallel with the auxiliary water cooling pipe 133, so that the spiral water cooling pipe 135 and the auxiliary water cooling pipe 133 form a water cooling pipe on the surface of the spiral discharge channel 120, wherein the water inlet end and the water return end of the spiral water cooling pipe 135 and the auxiliary water cooling pipe 133 are also connected to the first water inlet branch pipe and the first water return branch pipe. In this way, the heat exchange is carried out between the spiral heat exchange bottom of the spiral discharge channel 120 and the steel slag on the inner wall of the partition, which increases the heat exchange area.

[0078] The above four styles systematically reveal the combination styles of the water-cooling tube and the turntable, especially the four situations in which the water-cooling tube is used as a spiral wall and a heat exchange bottom. These four situations are all within the protection scope of the present invention.

[0079] Of course, the above-mentioned spiral walls and partitions are only arranged in a single spiral structure, and can also be arranged in a double spiral or even triple spiral structure, that is, forming two or even three spiral discharge channels 120. Compared with the single spiral structure, this will only increase some implementation costs, which are all within the protection scope of the present invention, and reasonable protection is requested.

[0080] Furthermore, the water cooling pipes, auxiliary water cooling pipes and spiral water cooling pipes are made of metal pipes of uniform specifications. At the same time, wear-resistant layers such as ceramic layers and wear-resistant coatings are provided on the surfaces of the water cooling pipes, auxiliary water cooling pipes and spiral water cooling pipes to improve their wear resistance and avoid premature wear.

[0081] The embodiments described above are merely descriptions of preferred implementations of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements to the present invention by relevant technical personnel in the field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. A high-temperature steel slag spiral cone heat exchange cooler, comprising a turntable, a cover, and a power drive module, characterized in that: The turntable has a conical profile with a high center and low surroundings, and the high point at the center of the turntable is the feed end, and the low points around the turntable are the discharge ends, and a spiral discharge channel arranged from top to bottom is formed by a spiral wall between the feed end and the discharge end, and the bottom surface or / side surface of the spiral discharge channel is provided with a spirally arranged water-cooling pipe, the water-cooling pipes are arranged in groups and the heat exchange area on the upper surface of the turntable is divided into a high-temperature zone and a low-temperature zone, wherein the high-temperature zone is a circular ring-shaped area close to the feed end, and the low-temperature zone is a circular ring-shaped area close to the discharge end, the water-cooling pipes in the two areas each form an independent cooling pipe system, and form independent closed loops through different booster pumps and pipes, the water-cooling pipes in the high-temperature zone are connected to the high-temperature water-cooling circulation system through pipes and rotary joints, and the water-cooling pipes in the low-temperature zone are connected to the low-temperature water-cooling circulation system through pipes and rotary joints; The cover is fixedly installed above the turntable through a steel structure, and a conical space for cooling the high-temperature slag is formed between the cover and the turntable; The power drive module is mechanically connected to and drives the turntable to rotate. When the turntable rotates, the internal slag material slides sideways and downwards under the action of its own weight and the rotation of the turntable.

2. The high-temperature steel slag spiral cone heat exchange cooler according to claim 1, characterized in that: It also includes a material collection groove, which is arranged at the side of the discharge section of the turntable and collects the slag material discharged from the outer periphery of the turntable.

3. The high temperature steel slag spiral cone heat exchange cooler according to claim 1, characterized in that: A material drop opening is provided at the bottom of the aggregate groove, and a plurality of scraper plates are fixed on the periphery of the edge of the turntable. The scraper plates are located in the aggregate groove and scrape the steel slag aggregate in the aggregate groove.

4. The high-temperature steel slag spiral cone heat exchange cooler according to claim 1, characterized in that: The rotary joint is located at a colinear position with the rotation axis of the turntable.

5. The high-temperature steel slag spiral cone heat exchange cooler according to claim 1, characterized in that: The water cooling pipes are arranged from top to bottom along the conical surface of the turntable to form a spiral wall, and the water cooling pipes are welded in parallel in the height direction to form the spiral wall, and a fixed rib is arranged on the back side of the spiral wall.

6. The high-temperature steel slag spiral cone heat exchange cooler according to claim 1 or 5, characterized in that: The water cooling pipe is fixedly installed along the bottom plate of the spiral discharge channel.

7. The high-temperature steel slag spiral cone heat exchange cooler according to claim 1, characterized in that: The water cooling pipe is arranged on the side surface of the spiral wall of the spiral discharge channel and / or on the bottom plate of the bottom.

8. The high temperature steel slag spiral cone heat exchange cooler according to claim 1, characterized in that: A conical material distribution protrusion protruding upward is arranged at the center of the turntable, and the conical material distribution protrusion faces the material inlet of the cover body.

9. A spiral protrusion is arranged in the conical material distribution protrusion.

10. The high temperature steel slag spiral cone heat exchange cooler according to claim 8, characterized in that: An air distribution duct is arranged on the lower side of the conical material distribution protrusion, and an air distribution nozzle is arranged on the conical material distribution protrusion. The air distribution duct is connected to the blower through a rotating joint, and blows cold air to the feed inlet above the conical material distribution protrusion by blowing. The cold air cools the high-temperature slag surface at the moment of falling.

11. The high temperature steel slag spiral cone heat exchange cooler according to claim 1, characterized in that: The power drive module is composed of a chain drive assembly and a speed regulating motor, and drives the turntable to rotate by speed regulation.

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