High-efficiency calcining furnace device for blast furnace slag resource utilization

Abstract

The present invention relates to the field of high-temperature activation technology, and specifically to an efficient calcining furnace device for blast furnace slag resource utilization, including: a high-temperature activation component, wherein the high-temperature activation component includes a plurality of vertically stacked furnace bodies, wherein hot air flows through the furnace bodies. The present invention continuously transports crushed blast furnace slag fragments into the furnace body, and continuously accumulates the blast furnace slag fragments with increased weight above the arc spring plate, which will affect the deformation amplitude of the arc spring plate. Therefore, when the deformation amplitude of the arc spring plate is affected, it will affect the vibration of the vibration plate, and the vibration monitoring element will continuously weaken the electrical signal generated by detecting the vibration of the vibration plate, and the controller will control the hot air flow rate input into the furnace body by the hot air input device through the continuously weakened electrical signal, so that the hot air flow rate is increased to increase the heat of the blast furnace slag fragments with increasing weight for high-temperature activation.

Description

Technical Field

[0001] The invention relates to the technical field of calcining furnaces, and in particular to a high-efficiency calcining furnace device for recycling blast furnace slag. Background Art

[0002] Blast furnace slag is a by-product produced during the blast furnace smelting process. It is a solid substance formed after the slag formed during the reaction in the blast furnace is rapidly cooled.

[0003] In the process of recycling blast furnace slag, high-temperature activation is usually required to change the physical and chemical properties of the slag. This process usually relies on a calcining furnace for treatment. In the prior art, the calcination process of blast furnace slag is usually carried out in a single calcination space for high-temperature activation. However, in this process, the material is usually in a static state, and the materials near and far from the heating source are heated unevenly, resulting in uneven activation effect, and the activation effect of the blast furnace slag cannot be adjusted;

[0004] In addition, changes in the amount of water slag also play an important role in heat demand. As the amount of water slag increases, the moisture content therein also increases accordingly. Therefore, more heat is required to ensure that the water slag is fully activated. However, the existing device does not dynamically adjust according to the changes in the amount of water slag and moisture during the heating process. Although rough heat regulation can be performed, there is a lack of heat input mechanism for actual changes in the amount of water slag and moisture. This causes large errors in heat input in the existing calcining furnace due to changes in factors such as material quantity and distance from the heating source, resulting in energy waste and low efficiency. Summary of the invention

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides a high-efficiency calcining furnace device for blast furnace slag resource utilization, which can effectively solve the problem of poor activation effect caused by uneven heat distribution in the prior art.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] The present invention provides a high-efficiency calcining furnace device for resource utilization of blast furnace slag, including a high-temperature activation component, wherein the high-temperature activation component includes a plurality of vertically stacked furnace bodies, wherein hot air flows in the furnace body, and an arc-shaped spring plate is provided on the inner wall of the furnace body and at a lower position, wherein two sides of the arc-shaped spring plate are fixedly connected to the inner wall of the furnace body, and the other two sides of the arc-shaped spring plate are in airtight sliding contact with the inner wall of the furnace body, wherein blast furnace slag is carried on the arc-shaped spring plate, and the arc-shaped spring plate is intermittently driven to deform, and the weight of the blast furnace slag will suppress the deformation degree of the arc-shaped spring plate, and the weight of the blast furnace slag is proportional to the hot air flow rate of the furnace body.

[0008] Preferably, it also includes a base plate, a plurality of support columns are fixedly installed on the top of the base plate, the upper ends of the support columns are fixedly connected to the furnace body, a vertical plate is fixedly installed on one side of the furnace body, a fixed block is fixedly installed on one side of the furnace body, a rotating column is rotatably installed inside the fixed block, a roller is fixedly installed on one end of the rotating column, the roller is airtightly rotatably connected to the furnace body, a plurality of slide grooves are opened in a circular array inside the roller, a first spring is fixedly installed inside the slide groove, an extrusion block is fixedly installed on one end of the first spring, and the extrusion block is limitedly slidably connected to the slide groove.

[0009] Preferably, an electromagnetic clutch shaft is fixedly installed on the other end of the rotating column, and the electromagnetic clutch shaft is composed of a gear shaft and an electromagnetic clutch. The electromagnetic clutch shaft is electrically connected to a controller, and a fixed plate is fixedly installed on one side of the vertical plate, a slot is opened in the fixed plate, and a rotating shaft is rotatably installed in the slot, and a first rotating driving member is fixedly installed on one side of the fixed plate, and the output end of the first rotating driving member passes through the fixed plate and is fixedly connected to the rotating shaft, and the rotating shaft and the gear shaft are connected through a gear belt transmission.

[0010] Preferably, an air intake pipe is provided on one side of the furnace body, and the air intake pipe is provided with an input port and multiple output ports, and the multiple output ports are fixedly installed with a first solenoid valve, the first solenoid valve is connected to each furnace body, the input port is connected to a hot air input device, and the hot air input device is electrically connected to a controller, a rotary valve is connected on one side of the furnace body and above the roller, and one end of the rotary valve is connected to an exhaust pipe.

[0011] Preferably, a vibration plate is embedded on one side of the furnace body at a position corresponding to the arc-shaped spring plate, a plurality of paddles are fixedly installed on one end of the vibration plate, an external plate is fixedly installed on one side of the vertical plate and above the vibration plate, a vibration monitoring element is embedded in the external plate, the vibration monitoring element is electrically connected to the controller, and the monitoring end of the vibration monitoring element is in contact with the vibration plate.

[0012] Preferably, it also includes a crushing assembly, the crushing assembly includes a support plate fixedly installed on the upper end surface of the bottom plate, the upper end surface of the support plate is fixedly installed with a cross plate, the upper end surface of the cross plate is fixedly installed with a crushing barrel, the upper end surface of the crushing barrel is connected with an air outlet pipe, the outer wall of the air outlet pipe is connected with a feed pipe, the inner bottom end of the crushing barrel is rotatably installed with a rotating chassis, the outer wall of the rotating chassis is provided with tooth grooves, the rotating chassis is driven to rotate, the interior of the rotating chassis is provided with a conical groove, the inner wall of the crushing barrel is provided with a convex tooth array, the A plurality of rolling wheels are fixedly mounted in a circular array on the upper end surface of the rotating chassis, and vertical teeth are provided on the outer wall of the rolling wheel, and the vertical teeth are meshed with the convex teeth; a three-way pipe is fixedly mounted on the lower end surface of the horizontal plate, and the three-way pipe has an access end and two discharge ends, and the access end passes through the horizontal plate and the crushing barrel and is fixedly mounted with a spring valve; the air outlet pipe is connected to a diverter through a pipeline, and the diverter has a plurality of output ends, and a second solenoid valve is fixedly mounted on the output end of the diverter, and the second solenoid valve is electrically connected to the controller, and the second solenoid valve is communicated with the furnace body.

[0013] Preferably, a second rotating drive member is fixedly mounted on the lower end surface of the transverse plate, a rotating short shaft is fixedly mounted on the output end of the second rotating drive member, an upper end of the rotating short shaft passes through the transverse plate and is fixedly mounted with a first rotating tooth, and the first rotating tooth is meshed with the tooth groove.

[0014] Preferably, it also includes a feeding assembly, which includes a first connecting plate fixedly installed on both sides of the cross plate, the upper end surface of the first connecting plate is rotatably installed with a connecting shaft, the outer wall of the connecting shaft is fixedly installed with a second rotating tooth, the second rotating tooth is meshed with the tooth groove, the upper end of the connecting shaft is fixedly installed with a top plate, the upper end of the top plate is fixedly installed with a top block, the outer wall of the crushing barrel is symmetrically installed with two second connecting plates, an injection hood is embedded in the second connecting plate, a lifting bucket is slidingly installed on the inner wall of the injection hood, a second spring is fixedly installed between the injection hood and the lifting bucket, a protrusion is fixedly installed on the lower end surface of the lifting bucket, the protrusion contacts the top block, a one-way valve is embedded in the outer wall of the lifting bucket, an air bag is fixedly installed on one side of the first connecting plate, the air bag and the injection hood are connected through an air supply pipe, and the air bag and the discharge end of the injection hood are connected through an air intake pipe.

[0015] Compared with the known prior art, the technical solution provided by the present invention has the following beneficial effects:

[0016] First, by continuously transporting the crushed blast-furnace slag fragments into the furnace body, the blast-furnace slag fragments that are continuously accumulated above the arc spring plate and increase in weight will affect the deformation amplitude of the arc spring plate. Therefore, when the deformation amplitude of the arc spring plate is affected, it will affect the vibration of the vibration plate, and the vibration monitoring element will continuously weaken the electrical signal generated by detecting the vibration of the vibration plate, and the controller will control the hot air flow rate input into the furnace body by the hot air input device through the continuously weakened electrical signal, so as to increase the hot air flow rate to increase the heat of the blast-furnace slag fragments with increasing weight for high-temperature activation. Increasing the hot air flow rate can not only increase the oxidation-reduction reaction rate in the furnace body, accelerate the iron ore reduction reaction in the blast-furnace slag, but also increase the temperature in the furnace body and the reaction intensity of high-temperature activation.

[0017] Secondly, the rotating column drives the extrusion block to continuously contact with the arc spring plate, so that the arc spring plate is transformed and deformed between the concave surface and the convex surface. In the process of deformation, the blast furnace slag fragments are bounced up, so that the position of the blast furnace slag fragments in the furnace body is changed, and the blast furnace slag fragments are fully contacted with the hot air in the furnace body. In this way, it can effectively avoid the situation that during the high-temperature activation of the blast furnace slag in the furnace body, the position of the blast furnace slag is fixed, resulting in a part of the blast furnace slag reacting faster and activating faster, while the other part of the blast furnace water is not effectively activated.

[0018] Thirdly, when the blast furnace slag fragments accumulate to a certain weight above the arc-shaped spring plate, in order to prevent the arc-shaped spring plate from being unable to effectively bounce up the blast furnace slag fragments during the deformation process, or from being unable to effectively change the position of the blast furnace slag fragments after bouncing up, a vibration monitoring element is used to detect the vibration plate during the process of the arc-shaped spring plate bouncing up the blast furnace slag. After the arc-shaped spring plate contacts the paddle to make the vibration plate vibrate, the vibration plate is detected. After the electrical signal generated by the vibration monitoring element drops to or is close to the set threshold, the second solenoid valve is closed to stop conveying the blast furnace slag fragments into the furnace body. This can effectively prevent the blast furnace slag fragments from accumulating too much and causing the arc-shaped spring plate to be unable to effectively bounce up the blast furnace slag fragments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0021] Figure 2 It is a schematic structural diagram of the side view of the present invention;

[0022] Figure 3 for Figure 2 The enlarged structural diagram at A in the middle;

[0023] Figure 4 It is a schematic cross-sectional structural diagram of the furnace body of the present invention;

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of the crushing assembly of the present invention;

[0025] Figure 6 It is a schematic cross-sectional structural diagram of the crushing assembly of the present invention;

[0026] Figure 7 It is a structural schematic diagram of the feeding assembly of the present invention;

[0027] Figure 8 for Figure 7 Enlarged structural diagram at B in the middle.

[0028] Figure numerals: 1, bottom plate; 2, high temperature activation assembly; 201, support column; 202, vertical plate; 203, furnace body; 204, arc spring plate; 205, fixed block; 206, rotating column; 207, roller; 208, first spring; 209, extrusion block; 210, vibration plate; 211, paddle; 212, external plate; 213, vibration monitoring element; 214, air intake pipe; 215, first solenoid valve; 216, fixed plate; 217, rotary valve; 218, exhaust pipe; 219, notch; 220, rotating shaft; 221, first rotating drive member; 222, electromagnetic clutch shaft; 223, gear belt; 3, crushing assembly; 301, support plate; 302, horizontal plate; 303, crushing barrel; 304, air outlet pipe; 305, rotating chassis; 306, conical groove; 307, convex tooth; 308, crushing wheel; 309, second rotating drive member; 310, rotating short shaft; 311, first rotating tooth; 312, three-way pipe; 313, spring valve; 314, feeding pipe; 315, diverter; 316, second solenoid valve; 4, feeding assembly; 401, first connecting plate; 402, connecting shaft; 403, second rotating tooth; 404, top plate; 405, top block; 406, second connecting plate; 407, gas injection hood; 408, lifting barrel; 409, one-way valve; 410, convex block; 411, air bag. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] The present invention will be further described below in conjunction with the embodiments.

[0031] Example: Refer to Figures 1 to 8 , a high-efficiency calcining furnace device for blast furnace slag resource utilization, including a high-temperature activation component 2, the high-temperature activation component 2 includes a plurality of vertically stacked furnace bodies 203, hot air flows in the furnace body 203, an arc spring plate 204 is arranged on the inner wall of the furnace body 203 and at a lower position, the arc spring plate 204 can be made of high-temperature alloy steel material, the high-temperature alloy steel can withstand high working temperatures, has good wear resistance and corrosion resistance, contains elements such as chromium and nickel, and can maintain strong mechanical properties under high temperature conditions, two sides of the arc spring plate 204 are fixedly connected to the inner wall of the furnace body 203 Then, the other two sides of the arc spring plate 204 are in airtight sliding contact with the inner wall of the furnace body 203. The arc spring plate 204 carries blast furnace slag. The arc spring plate 204 is intermittently driven to deform. The weight of the blast furnace slag will inhibit the deformation degree of the arc spring plate 204. The weight of the blast furnace slag is proportional to the hot air flow of the furnace body 203. Through the setting of the arc spring plate 204, not only the position of the blast furnace slag can be adjusted during the high-temperature activation of the blast furnace slag, but it can also be used when different materials (for example: fly ash, slag materials and mineral materials, etc.) need to be activated at high temperature.

[0032] Reference Figures 2 to 4, also includes a bottom plate 1, a plurality of support columns 201 are fixedly installed on the top of the bottom plate 1, the upper ends of the support columns 201 are fixedly connected to the furnace body 203, a vertical plate 202 is fixedly installed on one side of the furnace body 203, a fixed block 205 is fixedly installed on one side of the furnace body 203, a rotating column 206 is rotatably installed inside the fixed block 205, a roller 207 is fixedly installed on one end of the rotating column 206, the roller 207 is connected to the furnace body 203 in an airtight rotational manner, a plurality of slide grooves are provided in a circular array inside the roller 207, a first spring 208 is fixedly installed inside the slide groove, an extrusion block 209 is fixedly installed on one end of the first spring 208, when the roller 207 is driven to rotate and drives the extrusion block 209 to squeeze the arc spring plate 204, the roller 207 is in contact with the arc spring plate 204, and the roller 207 is in contact with the arc spring plate 204. The spring plate 204 is rotatably connected and there is no gap between the spring plate 204 and the arc spring plate 204, so as to prevent the blast furnace slag from falling from the roller 207 and the arc spring plate 204 to the inner bottom end of the furnace body 203. The extrusion block 209 is limitedly slidably connected with the slide groove. The other end of the rotating column 206 is fixedly installed with an electromagnetic clutch shaft 222. The electromagnetic clutch shaft 222 is composed of a gear shaft and an electromagnetic clutch. The electromagnetic clutch shaft 222 is an existing device. By combining the electromagnetic clutch with the gear shaft, the power is engaged or disconnected by controlling the electromagnetic force, so as to control the mechanical transmission system. The electromagnetic clutch shaft 222 is electrically connected to the controller. A fixed plate 216 is fixedly installed on one side of the vertical plate 202. A notch 219 is opened in the fixed plate 216. The notch 219 A rotating shaft 220 is installed in the furnace body 203, and a first rotating driving member 221 is fixedly installed on one side of the fixed plate 216. The output end of the first rotating driving member 221 passes through the fixed plate 216 and is fixedly connected to the rotating shaft 220. The rotating shaft 220 and the gear shaft are connected by a gear belt 223. An air inlet pipe 214 is arranged on one side of the furnace body 203. The air inlet pipe 214 is provided with an input port and multiple output ports. The multiple output ports are fixedly installed with a first solenoid valve 215. The first solenoid valve 215 and the second solenoid valve 316 are an existing device, which is an automatic component that uses electromagnetic force to control the flow of fluid (such as gas, liquid). It operates the switch of the valve by energizing and de-energizing the electromagnet, thereby controlling the flow of the fluid. The first solenoid valve 215 and the second solenoid valve 316 are an existing device. Each furnace body 203 is connected, and the input port is connected to a hot air input device. The hot air input device can be used with an existing hot air blower. The hot air blower is a device for heating air and delivering it to a specified position. Its working principle is to inhale air through a blower and deliver hot air after heating. The hot air input device is electrically connected to the controller. A rotary valve 217 is connected to one side of the furnace body 203 and above the roller 207. The rotary valve 217 uses an existing rotary valve. The rotary valve usually has a turntable or a rotating device with strong sealing properties in structure, which can accurately control the separation of materials and airflow. One end of the rotary valve 217 is connected to an exhaust pipe 218. A vibration plate 210 is embedded on one side of the furnace body 203 and at the position corresponding to the arc spring plate 204.A plurality of paddles 211 are fixedly mounted on one end of the vibration plate 210. The arc spring plate 204 contacts the paddles 211 during the process of being driven to deform. When the weight of the blast furnace slag above the arc spring plate 204 is large, the deformation speed of the arc spring plate 204 will slow down, and the speed of contact with the paddles 211 will slow down. The amplitude of the vibration plate 210 driven by the vibration of the paddles 211 will also decrease. An external plate 212 is fixedly mounted on one side of the vertical plate 202 and above the vibration plate 210. A vibration monitoring element 213 is embedded in the external plate 212. The vibration monitoring element 213 can be used with an existing piezoelectric vibration sensor. The piezoelectric sensor works by using the piezoelectric effect. When a piezoelectric material (such as a piezoelectric crystal or ceramic) is vibrated, an electric charge is generated. This charge can be converted into an electrical signal. The vibration monitoring element 213 is electrically connected to the controller, and the monitoring end of the vibration monitoring element 213 contacts the vibration plate 210.

[0033] Reference Figure 5 to Figure 6, and also includes a crushing assembly 3, the crushing assembly 3 includes a support plate 301 fixedly installed on the upper end surface of the bottom plate 1, a horizontal plate 302 fixedly installed on the upper end surface of the support plate 301, a crushing barrel 303 fixedly installed on the upper end surface of the horizontal plate 302, an upper end surface of the crushing barrel 303 is connected with an air outlet pipe 304, an outer wall of the air outlet pipe 304 is connected with a feed pipe 314, a rotating chassis 305 is rotatably installed at the inner bottom end of the crushing barrel 303, an outer wall of the rotating chassis 305 is provided with a tooth groove, the rotating chassis 305 is driven to rotate, and a conical groove 3 is provided inside the rotating chassis 305 06. The inner wall of the crushing barrel 303 is provided with a convex tooth array. When the rotating chassis 305 is driven to rotate, it will drive multiple rolling wheels 308 to rotate. When the blast furnace slag is placed in the crushing barrel 303, a certain amount of blast furnace slag needs to be placed to avoid excessive blast furnace slag being blocked in the crushing barrel 303. The rotating rotating chassis 305 cannot drive the blast furnace slag to approach the inner wall of the crushing barrel 303 by centrifugal force during the rotation process. Multiple rolling wheels 308 are fixedly installed in the circumferential array on the upper end surface of the rotating chassis 305. The rolling wheels 308 are fixedly installed in the circumferential array on the upper end surface of the rotating chassis 305. The outer wall of the horizontal plate 302 is provided with vertical teeth, which mesh with the convex teeth 307. A three-way pipe 312 is fixedly installed on the lower end surface of the horizontal plate 302. The three-way pipe 312 has an access end and two discharge ends. The access end passes through the horizontal plate 302 and the crushing barrel 303 and is fixedly installed with a spring valve 313. The spring valve 313 is an existing device. When the pressure reaches or exceeds the set value, the valve flap of the valve body will be pushed open to allow the fluid (such as steam, gas or liquid) to escape. The outlet pipe 304 is connected to a diverter 315 through a pipeline. The diverter 315 has multiple output ends. A second solenoid valve 316 is fixedly installed at the output end of 315, and the second solenoid valve 316 is electrically connected to the controller. The second solenoid valve 316 is connected to the furnace body 203. A second rotating drive member 309 is fixedly installed on the lower end surface of the cross plate 302. The second rotating drive member 309 and the first rotating drive member 221 are used with existing rotating motors. A rotating short shaft 310 is fixedly installed at the output end of the second rotating drive member 309. The upper end of the rotating short shaft 310 passes through the cross plate 302 and is fixedly installed with a first rotating tooth 311, which is meshed with the tooth groove.

[0034] Reference Figures 7 and 8, also includes a feeding component 4, the feeding component 4 includes a first connecting plate 401 fixedly installed on both sides of the horizontal plate 302, a connecting shaft 402 is rotatably installed on the upper end surface of the first connecting plate 401, a second rotating tooth 403 is fixedly installed on the outer wall of the connecting shaft 402, the second rotating tooth 403 is meshed with the tooth groove, a top plate 404 is fixedly installed on the upper end of the connecting shaft 402, a top block 405 is fixedly installed on the upper end of the top plate 404, two second connecting plates 406 are symmetrically installed on the outer wall of the crushing barrel 303, an air injection hood 407 is embedded in the second connecting plate 406, a lifting barrel 408 is slidingly installed on the inner wall of the air injection hood 407, a second spring is fixedly installed between the air injection hood 407 and the lifting barrel 408, a convex block 410 is fixedly installed on the lower end surface of the lifting barrel 408, the convex block 410 contacts the top block 405, and the lifting barrel 408 is fixedly installed. A one-way valve 409 is embedded in the outer wall of the barrel 408, and an airbag 411 is fixedly installed on one side of the first connecting plate 401. During the process of continuous overlap and extension of the air injection hood 407 and the lifting barrel 408, the outside air is injected into the airbag 411. When the outside air accumulates a certain air pressure, its pressure will break through the valve opening resistance of the spring valve 313, and the high-pressure air in the airbag 411 will spray into the crushing barrel 303, driving the blast furnace slag fragments to flow into the furnace body 203. The airbag 411 and the air injection hood 407 are connected by an air supply pipe, and the airbag 411 and the discharge end of the air injection hood 407 are connected by an air intake pipe. It should be noted that the air pressure can completely pass through the furnace body 203, the feed pipe 314, and the diverter 315, and the air energy can completely drive the blast furnace slag into the furnace body 203.

[0035] The working principle of the present invention is as follows:

[0036] 1. Crush the blast furnace slag and transport it to the furnace body 203: put a certain amount of blast furnace slag into the crushing barrel 303 through the air inlet pipe 214 (too much blast furnace slag will block the inside of the crushing barrel 303 and cannot be moved toward the inner wall of the crushing barrel 303 by rotating the rotating chassis 305), turn on the second rotating drive member 309 to drive the rotating short shaft 310 and the first rotating teeth 311 to rotate, and the rotating first rotating teeth 311 will drive the rotating chassis 305 to rotate, and the rotating rotating chassis 305 will make the blast furnace slag entering the crushing barrel 303 produce The centrifugal force is generated to move the blast furnace slag toward the inner wall of the crushing barrel 303. During the rotation of the rotating chassis 305, the crushing wheel 308 is driven to rotate and mesh with the convex teeth 307 to squeeze the blast furnace slag. During the rotation process that continues for a period of time, the blast furnace slag is continuously crushed, and the volume of the crushed blast furnace slag is reduced. During the rotation of the rotating chassis 305, the second rotating teeth 403 are meshed with the second rotating teeth 403 to drive the second rotating teeth 403 and the connecting shaft 402 to rotate. The rotating connecting shaft 402 drives the top plate 404 and the top block 405 to rotate. The top block 405 is constantly pressed and contacted with the protrusion 410, so that the lifting bucket 408 slides up and down in the gas injection cover 407 and compresses the second spring. During the rising process of the lifting bucket 408, the air pressure inside the gas injection cover 407 will decrease, so that the air inside the gas injection cover 407 enters the air bag 411 through the gas pipe. During the descending process of the lifting bucket 408, the compressed second spring will drive the lifting bucket 408 to descend, increase the air pressure inside the gas injection cover 407, and the outside air will enter the gas injection cover 407 through the one-way valve 409, so as to repeatedly pass through the gas injection cover 407. Air is transported to the air bag 411 through the air pipe. When a certain amount of air is accumulated in the air bag 411 and a certain air pressure is reached, the air with air pressure will break through the closing resistance of the spring valve 313. At the same time, the blast furnace slag will be crushed to a certain fineness in the crushing barrel 303 and transported to the crushing barrel 303 through the three-way pipe 312, driving the crushed blast furnace slag debris to flow into the outlet pipe 304, and then transported to the diverter 315 and the second electromagnetic valve 316 through the outlet pipe 304, and finally transported to each furnace body 203.

[0037] 2. Adjust the amount of water slag entering: The water slag entering each furnace body 203 will fall on the upper concave surface of the arc spring plate 204 (such as Figure 4As shown), the hot air input device is opened and hot air is input into each furnace body 203 through the air inlet pipe 214 and the first solenoid valve 215 (the temperature of the hot air usually needs to reach between 800°C and 1200°C to ensure that the mineral reaction in the blast furnace slag can be effectively stimulated, but the properties of the blast furnace slag and the activation target are different, and the heat can be appropriately adjusted) to activate the blast furnace slag at high temperature, and the rotating shaft 220 is driven to rotate by opening the first rotating drive member 221. The rotating rotating shaft 220 will drive the electromagnetic clutch shaft 222 and the rotating column 206 to rotate through the gear belt 223. The rotating rotating column 206 will drive the roller 207 and the extrusion block 209 to continuously contact the arc spring plate 204. The force applied by the extrusion block 209 in the process of contacting the arc spring plate 204 is from top to bottom. When the extrusion block 209 is in extrusion contact with the arc spring plate 204, it will retract into the roller 207 and The first spring 208 is compressed, and the extrusion block 209 will deform the arc spring plate 204 during the extrusion process with the arc spring plate 204, and the convex surface of the arc spring plate 204 will be deformed into a concave surface. After the extrusion block 209 is driven to stop extruding the arc spring plate 204, the arc spring plate 204 will return to its original state, and the concave surface will be converted into a convex surface. During the deformation process (the conversion process from convex surface → concave surface → convex surface), the blast furnace slag debris on the arc spring plate 204 will be bounced up, and the position of the blast furnace slag debris in the furnace body 203 will change during the bouncing process. In this way, during the high-temperature activation of the blast furnace slag debris by hot air, the blast furnace slag debris that constantly changes position will be fully in contact with the hot air, which can effectively avoid the situation in which, during the high-temperature activation of the blast furnace slag, a part of the blast furnace slag reacts and activates faster due to the fixed position of the blast furnace slag, while another part of the blast furnace slag cannot be effectively activated.

[0038] It should be noted that during the deformation of the arc spring plate 204, the arc spring plate 204 will contact the paddle 211, and the paddle 211 will drive the vibration plate 210 to vibrate. The vibration generated by the vibration plate 210 will be detected by the vibration monitoring element 213, and the vibration will cause the vibration monitoring element 213 to generate an electrical signal. When the blast furnace slag continuously enters the top of the arc spring plate 204, the arc spring plate 204 will contact the paddle 211 when deforming, and the amplitude of the vibration generated by the vibration plate 210 will change. The weight of the blast furnace slag will suppress the deformation amplitude of the arc spring plate 204, so the deformation amplitude of the arc spring plate 204 will affect the vibration. The vibration of the plate 210 is affected, and the electrical signal generated by the vibration monitoring element 213 by detecting the vibration of the vibration plate 210 will be continuously weakened, and the controller controls the output power of the hot air input device through the continuously weakened electrical signal, and increases the hot air flow input to the furnace body 203, so that the hot air flow is increased to increase the hot air flow for high-temperature activation of the blast furnace slag slag with increasing weight, and hot air is the main source of oxygen supply. Increasing the hot air flow can increase the redox reaction rate in the furnace body 203, thereby accelerating the reduction reaction of iron ore in the blast furnace slag, and increasing the temperature in the furnace body 203 and the reaction intensity of high-temperature activation;

[0039] It should also be noted that when the high-temperature activation is performed, when the roller 207 is driven to rotate to deform the arc spring plate 204, the rotation speed of the roller 207 is fixed, that is, the frequency of the extrusion block 209 squeezing the arc spring plate 204 to deform and the frequency of the arc spring plate 204 deforming and bouncing up the blast furnace slag are fixed; the hot air flow rate entering the furnace body 203 through the air inlet pipe 214 is low, so as to avoid affecting the bounced blast furnace slag fragments, causing the blast furnace slag to gather on one side in the furnace body 203; the hot air entering the furnace body 203 will be discharged outward through the rotary valve 217 and the exhaust pipe 218, and the discharged hot air is connected to the air inlet pipe 214 through a pipeline, so as to recycle the heat of the hot air, and the rotary valve 217 provided can filter the blast furnace slag fragments to prevent them from being discharged outward with the hot air;

[0040] 3. Detect the weight of blast furnace slag fragments: when a certain amount of blast furnace slag fragments enters the furnace body 203 and accumulates above the arc spring plate 204 (the weight of the blast furnace slag discharged into the furnace body 203 and accumulated above the arc spring plate 204 is indefinite within the specified threshold), the generated weight will continuously suppress the vibration amplitude of the arc spring plate 204. After the electrical signal generated by the vibration monitoring element 213 due to the weakening of the vibration amplitude of the arc spring plate 204 decreases to a set threshold or is close to the set threshold, the controller will control the voltage input to the second solenoid valve 316 connected to the side of the furnace body 203 where the vibration amplitude is reduced to close the second solenoid valve 316, stop transporting blast furnace slag fragments into the furnace body 203, and avoid the furnace body 203 entering too much blast furnace slag fragments, which will cause the arc spring plate 204 to be unable to effectively bounce up the blast furnace slag fragments for high-temperature activation.

[0041] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. An efficient calcining furnace device for blast furnace slag resource utilization, characterized in that: The invention comprises a high-temperature activation component (2), wherein the high-temperature activation component (2) comprises a plurality of furnace bodies (203) stacked vertically, hot air circulates in the furnace body (203), an arc-shaped spring plate (204) is arranged on the inner wall of the furnace body (203) and at a lower position, two sides of the arc-shaped spring plate (204) are fixedly connected to the inner wall of the furnace body (203), and the other two sides of the arc-shaped spring plate (204) are in airtight sliding contact with the inner wall of the furnace body (203), blast furnace slag is carried on the arc-shaped spring plate (204), the arc-shaped spring plate (204) is intermittently driven to deform, the weight of the blast furnace slag will suppress the deformation degree of the arc-shaped spring plate (204), and the weight of the blast furnace slag is proportional to the hot air flow rate of the furnace body (203); A vertical plate (202) is fixedly mounted on one side of the furnace body (203); A vibration plate (210) is embedded on one side of the furnace body (203) at a position corresponding to the arc-shaped spring plate (204); a plurality of paddles (211) are fixedly mounted on one end of the vibration plate (210); an external plate (212) is fixedly mounted on one side of the vertical plate (202) and above the vibration plate (210); a vibration monitoring element (213) is embedded in the external plate (212); the vibration monitoring element (213) is electrically connected to a controller; and a monitoring end of the vibration monitoring element (213) is in contact with the vibration plate (210).

2. The high-efficiency calcining furnace device for blast furnace slag resource utilization according to claim 1, characterized in that: It also comprises a bottom plate (1), a plurality of support columns (201) are fixedly mounted above the bottom plate (1), the upper ends of the support columns (201) are fixedly connected to the furnace body (203), a fixed block (205) is fixedly mounted on one side of the furnace body (203), a rotating column (206) is rotatably mounted inside the fixed block (205), a roller (207) is fixedly mounted on one end of the rotating column (206), the roller (207) is airtightly rotatably connected to the furnace body (203), a plurality of slide grooves are provided in a circular array inside the roller (207), a first spring (208) is fixedly mounted inside the slide groove, an extrusion block (209) is fixedly mounted on one end of the first spring (208), and the extrusion block (209) is limitedly slidably connected to the slide groove.

3. The high-efficiency calcining furnace device for blast furnace slag resource utilization according to claim 2 is characterized in that: An electromagnetic clutch shaft (222) is fixedly mounted on the other end of the rotating column (206), and the electromagnetic clutch shaft (222) is composed of a gear shaft and an electromagnetic clutch. The electromagnetic clutch shaft (222) is electrically connected to a controller. A fixed plate (216) is fixedly mounted on one side of the vertical plate (202), and a notch (219) is provided in the fixed plate (216). A rotating shaft (220) is rotatably mounted in the notch (219). A first rotating driving member (221) is fixedly mounted on one side of the fixed plate (216), and an output end of the first rotating driving member (221) passes through the fixed plate (216) and is fixedly connected to the rotating shaft (220). The rotating shaft (220) and the gear shaft are connected by a gear belt (223) for belt transmission.

4. The high-efficiency calcining furnace device for blast furnace slag resource utilization according to claim 3 is characterized in that: An air intake pipe (214) is provided on one side of the furnace body (203), and the air intake pipe (214) is provided with an input port and a plurality of output ports, and a first solenoid valve (215) is fixedly installed on the plurality of output ports, and the first solenoid valve (215) is connected to each furnace body (203), and the input port is connected to a hot air input device, and the hot air input device is electrically connected to a controller, and a rotary valve (217) is connected on one side of the furnace body (203) and above the roller (207), and one end of the rotary valve (217) is connected to an exhaust pipe (218).

5. The high-efficiency calcining furnace device for blast furnace slag resource utilization according to claim 1, characterized in that: The invention also comprises a crushing assembly (3), wherein the crushing assembly (3) comprises a support plate (301) fixedly mounted on the upper end surface of the bottom plate (1), a transverse plate (302) fixedly mounted on the upper end surface of the support plate (301), a crushing barrel (303) fixedly mounted on the upper end surface of the transverse plate (302), an air outlet pipe (304) connected to the upper end surface of the crushing barrel (303), an outer wall of the air outlet pipe (304) connected to a feed pipe (314), a rotating chassis (305) rotatably mounted on the inner bottom end of the crushing barrel (303), a tooth groove being provided on the outer wall of the rotating chassis (305), the rotating chassis (305) being driven to rotate, a conical groove (306) being provided inside the rotating chassis (305), a convex tooth (307) being provided in a circular array on the inner wall of the crushing barrel (303), and the A plurality of rolling wheels (308) are fixedly mounted in a circular array on the upper end surface of the rotating chassis (305), and the outer wall of the rolling wheel (308) is provided with vertical teeth, and the vertical teeth mesh with the convex teeth (307). A three-way pipe (312) is fixedly mounted on the lower end surface of the horizontal plate (302), and the three-way pipe (312) has an access end and two discharge ends, and the access end passes through the horizontal plate (302) and the crushing barrel (303) and is fixedly mounted with a spring valve (313). The air outlet pipe (304) is connected to a diverter (315) through a pipeline, and the diverter (315) has a plurality of output ends. A second solenoid valve (316) is fixedly mounted on the output end of the diverter (315), and the second solenoid valve (316) is electrically connected to a controller, and the second solenoid valve (316) is communicated with the furnace body (203).

6. The high-efficiency calcining furnace device for blast furnace slag resource utilization according to claim 5, characterized in that: A second rotating drive member (309) is fixedly mounted on the lower end surface of the transverse plate (302); a rotating short shaft (310) is fixedly mounted on the output end of the second rotating drive member (309); an upper end of the rotating short shaft (310) passes through the transverse plate (302) and is fixedly mounted with a first rotating tooth (311); the first rotating tooth (311) is meshed with a tooth groove.

7. The high-efficiency calcining furnace device for blast furnace slag resource utilization according to claim 6, characterized in that: The material feeding assembly (4) further comprises a first connecting plate (401) fixedly mounted on both sides of the transverse plate (302); a connecting shaft (402) is rotatably mounted on the upper end surface of the first connecting plate (401); a second rotating tooth (403) is fixedly mounted on the outer wall of the connecting shaft (402); the second rotating tooth (403) is meshed with the tooth groove; a top plate (404) is fixedly mounted on the upper end of the connecting shaft (402); a top block (405) is fixedly mounted on the upper end of the top plate (404); two second connecting plates (406) are symmetrically mounted on the outer wall of the crushing barrel (303); and a gas injection device (406) is embedded in the second connecting plate (406). A lifting barrel (408) is installed on the inner wall of the gas injection hood (407) in a limited sliding manner, a second spring is fixedly installed between the gas injection hood (407) and the lifting barrel (408), a protrusion (410) is fixedly installed on the lower end surface of the lifting barrel (408), the protrusion (410) is in contact with the top block (405), a one-way valve (409) is embedded on the outer wall of the lifting barrel (408), an air bag (411) is fixedly installed on one side of the first connecting plate (401), the air bag (411) and the gas injection hood (407) are connected through an air supply pipe, and the air bag (411) and the discharge end of the gas injection hood (407) are connected through an air inlet pipe.

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