Grinding device for sintering refining slag and using method

Abstract

The invention discloses a grinding device for sintering refining slag and a using method, and relates to the technical field of grinding devices.The grinding device comprises an anti-explosion shell and a driving motor, conveying belt wheels are arranged on one side of the anti-explosion shell and one side of the driving motor, and the outer surfaces of the two conveying belt wheels are sleeved with conveying belts; a feeding port is formed in the upper end of the anti-explosion shell, a smashing mechanism used for smashing refining slag is arranged in the middle of an inner cavity of the anti-explosion shell, and a crushing mechanism matched with the smashing mechanism to crush large-particle refining slag is arranged on one side of the anti-explosion shell. Through cooperation of the crushing teeth, the grinding teeth and the protruding teeth, secondary step-by-step crushing of refining slag is achieved. The multi-stage crushing mode ensures that all materials can reach the required particle size standard, even hard or large particles can be thoroughly crushed, and the possibility of large particle residue is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of crushing devices, and particularly relates to a crushing device for sintered refining slag and a using method thereof. Background Art

[0002] Sintered refining slag mainly comes from the refining and sintering processes in the iron and steel production process. In the iron and steel manufacturing process, in order to improve the reducibility of iron ore, reduce energy consumption, and improve metallurgical properties, raw materials such as iron ore powder, limestone, and dolomite are usually mixed and then sintered to form sintered ore with a certain particle size for blast furnace smelting. When further refining molten iron in a blast furnace or an electric arc furnace, various slag will also be generated, and these slag can become the so-called "sintered refining slag" after specific treatment.

[0003] For example, the patent with the publication number CN220215108U and the name of a crushing device for sintered refining slag includes a crushing box and support legs. A sieve plate is slidably connected to the middle position inside the crushing box, and a driving shaft abuts against the middle position at the top of the sieve plate. The crushing roller, crushing column, and sieve plate are adopted. During the actual use process, personnel can drag the sieve plate according to needs, so that the holes that meet the requirements on the surface of the sieve plate are in the internal position of the device, which is convenient for subsequent screening of the refining slag of the required size. Then, after the sieve plate is adjusted, the protruding length of the crushing column and the contact height of the crushing roller can be orderly controlled according to the operation progress, so as to realize the dual operations of crushing and grinding of the refining slag, and at the same time, the processing size can be adjusted step by step, which is convenient for better use. It has the advantages of integrated grinding and crushing, adjustable crushing size, and good crushing effect.

[0004] In the process of processing sintered refining slag, materials of different sizes cannot be crushed synchronously and efficiently. Due to the large difference in the size of the original materials, it directly leads to a reduction in the overall processing efficiency, and it is difficult to ensure that each size of material can be treated in the most suitable way according to its characteristics. Traditional processing methods usually adopt a unified pressure and crushing force, and do not adjust the processing parameters according to the actual size and hardness of the materials, which means that during the processing, large particles may not be fully broken, while small particles may be over-crushed, resulting in inconsistent product particle sizes and affecting the subsequent application effect. Therefore, the present application provides a crushing device for sintered refining slag and a using method thereof to meet the requirements. Summary of the Invention

[0005] The purpose of the present application is to provide a crushing device for sintered refining slag and a using method thereof, which can effectively solve the problems raised in the above background art.

[0006] To achieve the above object, the present application provides the following technical solution: A crushing device for sintered refining slag, including an explosion-proof housing and a driving motor. Belt pulleys are provided on one side of the explosion-proof housing and the driving motor. Belt conveyors are sleeved on the outer surfaces of the two belt pulleys. A feed inlet is provided at the upper end of the explosion-proof housing. A crushing mechanism for crushing the refining slag is provided in the middle of the inner cavity of the explosion-proof housing. A crushing mechanism for crushing large particle refining slag in cooperation with the crushing mechanism is provided on one side of the explosion-proof housing. A material leakage mechanism for filtering small particle refining slag is provided at the bottom of the inner cavity of the explosion-proof housing. A crushing mechanism for crushing the residual filtered refining slag in the material leakage mechanism in cooperation with the crushing mechanism is provided on one side of the explosion-proof housing; The crushing mechanism includes a thickening arc plate and crushing teeth. A plurality of protruding teeth are arranged at equal intervals inside the crushing teeth. The crushing ends of the crushing teeth and the protruding teeth are both serrated. The thickening arc plate is arc-shaped, and the wall thickness of the thickening arc plate gradually increases.

[0007] Among them, a filter grid for screening the refining slag is provided inside the feed inlet. First hydraulic rods for controlling the crushing distance between the crushing mechanism and the pulverizing mechanism are provided on both sides of the feed inlet. Second hydraulic rods for controlling the crushing distance between the crushing mechanism and the pulverizing mechanism are provided on both sides of the explosion-proof housing.

[0008] Among them, the material leakage mechanism includes a ribbed plate. A discharge pipe is provided at the bottom of the explosion-proof housing. The ribbed plate is installed at the upper end of the discharge pipe. A plurality of inclined material openings for screening small particle refining slag are arranged at equal intervals on the outer surface of the ribbed plate. A plurality of guide plates are arranged at equal intervals on the inner wall of the ribbed plate.

[0009] Among them, the crushing mechanism includes a support shaft. The support shaft is rotatably installed inside the explosion-proof housing, and one end of the support shaft is fixedly connected to the belt pulley. A cylinder shaft is provided on the outer surface of the support shaft. A plurality of strip-shaped grooves are arranged in an annular array on the outer surface of the cylinder shaft.

[0010] Among them, a connecting block is provided inside the strip-shaped groove. A plurality of placing grooves are arranged at equal intervals on the inner wall of the connecting block. Arc blocks are provided inside the plurality of placing grooves. A plurality of crushing teeth with gradually increasing sizes are arranged on the outer surface of the arc block, and grooves are provided inside the crushing teeth.

[0011] Among them, the crushing mechanism includes an arc-shaped half shell. The upper part of the outer surface of the arc-shaped half shell is provided with a first support rod, and both ends of the first support rod are rotatably connected to a first hydraulic rod. The lower part of the outer surface of the arc-shaped half shell is provided with a first rotating shaft rod rotatably connected to the explosion-proof shell. The inner wall of the arc-shaped half shell is provided with a thickening push plate, and a number of fixing bolts for fixing the position of the thickening push plate are arranged inside the arc-shaped half shell. The thickening push plate is in a semi-circular arc shape, and the wall thickness of the thickening push plate gradually increases.

[0012] Among them, a number of mounting grooves are arranged at equal intervals on the inner wall of the thickening push plate. A clamping strip is arranged inside each of the number of mounting grooves. A bolt column for fixing the position of the clamping strip is arranged at the bottom of the clamping strip. A fixing groove is arranged inside the clamping strip, and a cross knife is arranged inside the fixing groove.

[0013] Among them, the crushing mechanism further includes a push cover shell. The upper end of the push cover shell is provided with a second support rod, and both ends of the second support rod are rotatably connected to a second hydraulic rod. The lower part of the outer surface of the push cover shell is provided with a second rotating shaft rod rotatably connected to the explosion-proof shell. The thickening arc plate is attached to the inner wall of the push cover shell, and a fastening bolt for fixing the position of the thickening arc plate is arranged inside the push cover shell.

[0014] Among them, a number of fastening bolts are arranged at equal intervals on the inner wall of the thickening arc plate. A connecting shell is arranged inside each of the number of fastening bolts, and the crushing teeth are installed inside the connecting shell.

[0015] The present invention also provides a use method of a crushing device for sintered refined slag, and the specific use method is as follows: Step 1: Pour the sintered refined slag into the feed inlet. The driving motor drives the conveyor belt wheel to rotate through the output shaft, and the conveyor belt is used for the transmission between the two conveyor belt wheels. The conveyor belt wheel drives the crushing mechanism to rotate to crush the sintered refined slag. When the sintered refined slag enters the inside of the feed inlet, it first passes through the filter grid for filtering. The filter grid screens the sintered refined slag, and the large-particle sintered refined slag screened out is sent to be crushed between the crushing mechanism and the pulverizing mechanism, while the small-particle sintered refined slag is sent to be crushed between the crushing mechanism and the pulverizing mechanism; Step 2: After the large-particle sintered refined slag is continuously crushed between the pulverizing mechanism and the crushing mechanism, it falls onto the material leakage mechanism. Since the distance between the crushing mechanism and the pulverizing mechanism gradually decreases after the crushing mechanism is adjusted by the first hydraulic rod, the sintered refined slag is in a gradually crushed state between the crushing mechanism and the pulverizing mechanism; Step 3: After the sintered refining slag is crushed by the crushing mechanism and the pulverizing mechanism and falls onto the material leakage mechanism, the small-particle sintered refining slag will enter the discharge pipe through the material leakage mechanism, while the sintered refining slag remaining on the material leakage mechanism will be sent into the grinding mechanism along with the rotation of the pulverizing mechanism to cooperate with the pulverizing mechanism for grinding, so that the sintered refining slag can be secondarily pulverized according to the degree of pulverization, and the distance between the grinding mechanism and the pulverizing mechanism is in a gradually decreasing state to grind the sintered refining slag.

[0016] In summary, the technical effects and advantages of the present invention are as follows: 1. After the refining slag preliminarily pulverized by the crushing mechanism and the pulverizing mechanism in the present invention falls onto the ribbed plate, the materials with qualified sizes are directly discharged through the inclined material outlet, while the large particles that do not meet the requirements are left on the ribbed plate for further processing, effectively separating the materials that already meet the particle size requirements, reducing unnecessary secondary processing steps, and improving the overall efficiency. Moreover, the serrated shape designs of the grinding teeth and the protruding teeth enable them to contact the refining slag more fully, providing a stronger grinding force. In addition, the design of the gradually increasing wall thickness of the gradually thickened arc-shaped piece allows the distance between the pulverizing teeth and the grinding teeth to gradually decrease, further enhancing the grinding effect. And the second hydraulic rod can dynamically adjust the distance between the pulverizing teeth and the grinding teeth according to requirements, allowing the equipment to be adjusted in real time according to the actual material state to ensure the best pulverizing effect. By adjusting the distance, appropriate grinding force can be provided for materials with different hardnesses or sizes, avoiding over-grinding or insufficient grinding, and improving the adaptability and working efficiency of the equipment. Through the cooperation of the pulverizing teeth, the grinding teeth and the protruding teeth, secondary step-by-step pulverization of the refining slag is achieved. The multi-stage pulverization method ensures that all materials can reach the required particle size standard, and even relatively hard or large particles can be thoroughly pulverized, reducing the possibility of residual large particles.

[0017] 2. In the present invention, the filter grid preliminarily screens the refined slag entering the feed port, separating large particles from small particles, which can improve the efficiency of subsequent processing steps and ensure that each size of material can be processed in the most suitable manner according to its characteristics. The large particles are directly sent to be crushed between the gradually thickening pushing blade and the crushing teeth, while the small particles may directly enter the next process or be further refined. The gradually thickening pushing blade is in the shape of a sickle, making the distance between the cross bar knife and the crushing teeth gradually decrease, enabling progressive crushing of the material and ensuring that materials of different particle sizes from large to small can be effectively processed. As the material moves within the equipment, it will first come into contact with larger gaps, and then as the gaps gradually become smaller, the pressure on the material increases, thus achieving more delicate crushing. The first hydraulic rod can dynamically adjust the distance between the cross bar knife and the crushing teeth according to the crushing requirements of the refined slag, allowing the equipment to make real-time adjustments according to the actual state of the material to ensure the best crushing effect. By adjusting the distance, appropriate crushing force can be provided for materials of different hardness or sizes, avoiding over-crushing or under-crushing, improving the adaptability and working efficiency of the equipment. Moreover, the material comes into contact with the cross bar knife and the crushing teeth multiple times during the falling process and is broken multiple times, ensuring that the material can be fully crushed to the required particle size. Each contact provides a new opportunity for crushing, enabling even relatively hard large pieces of material to be thoroughly crushed, reducing the possibility of residual large particles and improving the quality of the final product. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic perspective view of the first perspective of the crushing device for sintered refined slag; Figure 2 It is a schematic perspective view of the second perspective of the crushing device for sintered refined slag; Figure 3 It is a sectional view of the three-dimensional connection structure of the crushing device for sintered refined slag; Figure 4 It is a schematic diagram of the internal three-dimensional connection structure of the crushing device for sintered refined slag; Figure 5 It is a sectional view of the crushing device for sintered refined slag; Figure 6 It is a schematic diagram of the partial three-dimensional connection structure of the crushing device for sintered refined slag; Figure 7 It is a schematic perspective view of the three-dimensional connection structure of the crushing mechanism and the pulverizing mechanism; Figure 8 Schematic diagram of the three-dimensional connection structure of the first perspective of the crushing mechanism; Figure 9 Schematic diagram of the three-dimensional connection structure of the second perspective of the crushing mechanism; Figure 10 Schematic diagram of the three-dimensional connection structure of the thickening push plate; Figure 11 Schematic diagram of the three-dimensional connection structure of the cross bar knife and the clamping bar; Figure 12 Schematic diagram of the three-dimensional connection structure of the material leakage mechanism; Figure 13 Schematic diagram of the three-dimensional connection structure of the crushing mechanism; Figure 14 Schematic diagram of the three-dimensional connection structure of the cylinder shaft; Figure 15 Schematic diagram of the three-dimensional connection structure of the arc block and the connection block; Figure 16 Schematic diagram of the three-dimensional connection structure of the crushing teeth; Figure 17 Schematic diagram of the three-dimensional connection structure of the first perspective of the grinding mechanism; Figure 18 Schematic diagram of the three-dimensional connection structure of the second perspective of the grinding mechanism; Figure 19 Schematic diagram of the three-dimensional connection structure of the thickening arc plate; Figure 20 Schematic diagram of the three-dimensional connection structure of the grinding teeth and the protruding teeth.

[0020] In the figure: 1. Driving motor; 2. Conveyor belt; 3. Conveyor belt pulley; 4. Feed inlet; 5. First hydraulic rod; 6. Second hydraulic rod; 7. Crushing mechanism; 71. First support rod; 72. Arc half shell; 73. Fixed bolt; 74. First rotating shaft rod; 75. Thickening push plate; 76. Cross bar knife; 77. Installation groove; 78. Clamping bar; 79. Fixed groove; 711. Bolt column; 8. Explosion-proof shell; 9. Discharge pipe; 10. Grinding mechanism; 101. Second support rod; 102. Push cover shell; 103. Second rotating shaft rod; 104. Thickening arc plate; 105. Grinding teeth; 106. Fastening bolt; 107. Connection shell; 109. Protruding teeth; 11. Crushing mechanism; 111. Support shaft; 112. Arc block; 113. Cylinder shaft; 114. Strip groove; 115. Connection block; 116. Placing groove; 117. Crushing teeth; 118. Groove; 12. Material leakage mechanism; 121. Strip rib plate; 122. Guide piece; 123. Inclined material port; 13. Filter grid. Detailed implementation method

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0022] Embodiment 1. Refer to Figures 1 to 20 A crushing device for sintered refining slag shown in the figure, which includes an explosion-proof housing 8 and a driving motor 1. Belt pulleys 3 are arranged on one side of both the explosion-proof housing 8 and the driving motor 1. A conveyor belt 2 is sleeved on the outer surfaces of the two belt pulleys 3. A feed inlet 4 is arranged at the upper end of the explosion-proof housing 8. A crushing mechanism 11 for crushing the refining slag is arranged in the middle of the inner cavity of the explosion-proof housing 8. A crushing mechanism 7 for cooperating with the crushing mechanism 11 to crush large-particle refining slag is arranged on one side of the explosion-proof housing 8. A material leakage mechanism 12 for filtering small-particle refining slag is arranged at the bottom of the inner cavity of the explosion-proof housing 8. A crushing mechanism 10 for cooperating with the crushing mechanism 11 to crush the filtered residual refining slag in the material leakage mechanism 12 is arranged on one side of the explosion-proof housing 8.

[0023] It should be noted that the sintered refining slag is poured into the feed inlet 4. The driving motor 1 drives the belt pulley 3 to rotate through the output shaft. The conveyor belt 2 is used for the transmission between the two belt pulleys 3. The belt pulley 3 drives the crushing mechanism 11 to rotate to crush the sintered refining slag. When the sintered refining slag enters the inside of the feed inlet 4, it first passes through the filter grid 13 for filtering. The filter grid 13 screens the sintered refining slag. The large-particle sintered refining slag screened out is sent to be crushed between the crushing mechanism 7 and the crushing mechanism 11, and the small-particle sintered refining slag is sent to be crushed between the crushing mechanism 10 and the crushing mechanism 11. The large-particle sintered refining slag falls onto the material leakage mechanism 12 after continuous crushing between the crushing mechanism 11 and the crushing mechanism 7. Since the distance between the crushing mechanism 7 and the crushing mechanism 11 is gradually reduced after the adjustment of the first hydraulic rod 5 of the crushing mechanism 7, the sintered refining slag is in a gradually crushed state between the crushing mechanism 7 and the crushing mechanism 11. Among them, the filter grid 13 preliminarily screens the sintered refining slag entering the feed inlet 4, separates the large-particle and small-particle materials, ensures that the subsequent treatment steps are more efficient, avoids that all materials need to go through the same-intensity crushing process, the large-particle materials are directly sent to the crushing mechanism 7, and the small-particles are sent to the crushing mechanism 10, making the treatment process more targeted.

[0024] Through the cooperation between the crushing mechanism 7 and the pulverizing mechanism 11, and the method of adjusting the distance between the two by the first hydraulic rod 5, the progressive crushing of large-particle materials is achieved, which can effectively improve the crushing efficiency and ensure that the materials reach the required particle size. As the distance gradually decreases, the pressure on the materials increases, thus achieving a finer crushing effect. At the same time, for those large-particle materials that fail to reach the ideal particle size in the initial crushing, they can also enter the grinding mechanism 10 again for secondary crushing to ensure the consistency of the final product.

[0025] The first hydraulic rod 5 is used to dynamically adjust the distance between the crushing mechanism 7 and the pulverizing mechanism 11, allowing the equipment to flexibly adjust the processing force according to the actual needs of the materials. As the crushing process progresses, the distance gradually decreases, increasing the pressure on the materials and contributing to more refined crushing.

[0026] After the sintered refining slag is crushed by the crushing mechanism 7 and the pulverizing mechanism 11 and falls onto the material leakage mechanism 12, the small-particle sintered refining slag will enter the discharge pipe 9 through the material leakage mechanism 12, while the sintered refining slag remaining on the material leakage mechanism 12 will be sent into the grinding mechanism 10 along with the rotation of the pulverizing mechanism 11 to cooperate with the pulverizing mechanism 11 for grinding, enabling the sintered refining slag to be secondarily crushed according to the degree of crushing, and the distance between the grinding mechanism 10 and the pulverizing mechanism 11 is in a gradually decreasing state to crush the sintered refining slag.

[0027] Among them, after being preliminarily crushed by the crushing mechanism 7 and the pulverizing mechanism 11, the materials are sent to the material leakage mechanism 12. The small-particle sintered refining slag that already meets the particle size requirements can directly enter the discharge pipe 9 through the material leakage mechanism 12, reducing unnecessary further processing and effectively reducing energy consumption, because only those large-particle materials that need further processing will enter the next round of crushing process.

[0028] The larger-particle sintered refining slag remaining on the material leakage mechanism 12 will be sent into the grinding mechanism 10 for secondary crushing. The classification processing method ensures that all materials can reach the required degree of crushing. Through secondary crushing, even relatively hard or large particles can be fully crushed, guaranteeing the consistency of the final product and being suitable for various subsequent application requirements.

[0029] The design of the gradually decreasing distance between the grinding mechanism 10 and the pulverizing mechanism 11 allows a gradually increasing pressure to be exerted on the materials, thus achieving more delicate crushing, being able to dynamically adjust the crushing force according to the actual crushing degree of the materials. As the distance gradually decreases, the pressure on the materials increases and the crushing is more thorough.

[0030] Embodiment 2. Based on the pulverizing mechanism 11 and the crushing mechanism 7 provided in Embodiment 1, this embodiment provides a further technical solution for the pulverizing mechanism 11 and the crushing mechanism 7.

[0031] Inside the feed inlet 4, there is a filter grid 13 for screening refined slag. On both sides of the feed inlet 4, there are first hydraulic rods 5 for controlling the crushing distance between the crushing mechanism 7 and the pulverizing mechanism 11. On both sides of the explosion-proof housing 8, there are second hydraulic rods 6 for controlling the crushing distance between the grinding mechanism 10 and the pulverizing mechanism 11.

[0032] It should be noted that after the refined slag is fed into the feed inlet 4, the refined slag falls into the explosion-proof housing 8 after being screened by the filter grid 13. The set filter grid 13 screens the refined slag. The large-particle refined slag is sent between the crushing mechanism 7 and the pulverizing mechanism 11, and the small-particle refined slag falls between the grinding mechanism 10 and the pulverizing mechanism 11 through the screening of the filter grid 13. The filter grid 13 is placed obliquely. The surface area of the crushing mechanism 7 is larger than that of the grinding mechanism 10, and the filter grid 13 is located above the grinding mechanism 10.

[0033] The pulverizing mechanism 11 includes a support shaft 111. The support shaft 111 is rotatably installed inside the explosion-proof housing 8, and one end of the support shaft 111 is fixedly connected to the conveyor belt wheel 3. The outer surface of the support shaft 111 is provided with a cylindrical shaft 113, and a number of strip-shaped grooves 114 are arranged in an annular array on the outer surface of the cylindrical shaft 113.

[0034] Inside the strip-shaped groove 114, there is a connecting block 115. The inner wall of the connecting block 115 is provided with a number of placement grooves 116 arranged at equal intervals. Inside each of the number of placement grooves 116, there is an arc block 112. A number of crushing teeth 117 with gradually increasing sizes are arranged on the outer surface of the arc block 112, and a groove 118 is opened inside the crushing tooth 117.

[0035] Among them, when the conveyor belt wheel 3 rotates, it will drive the support shaft 111 to rotate. The support shaft 111 drives the cylindrical shaft 113 to rotate, and the cylindrical shaft 113 drives the connecting block 115 to rotate. The connecting block 115 drives the arc block 112 to rotate. Since the set arc block 112 is distributed in an arc shape with a large area, when a number of arc blocks 112 are combined together, they occupy four-fifths of the surface area of the cylindrical shaft 113. When the arc block 112 rotates, it drives the crushing teeth 117 to rotate. And because the crushing teeth 117 are arranged on the surface of the arc block 112 in a way that the sizes increase gradually, the crushing teeth 117 can cooperate with the crushing mechanism 7 to gradually change the distance to crush the refined slag.

[0036] Among them, the inclined placement of the filter grid 13 helps the material to slide more smoothly, and can effectively separate the large-particle and small-particle refined slag, which can improve the screening efficiency and reduce the possibility of blockage. The surface area of the crushing mechanism 7 is larger than that of the grinding mechanism 10. The larger surface area allows the crushing mechanism to handle more large-particle materials, while the smaller grinding mechanism focuses on the refinement process to ensure that the final product meets the required particle size standard.

[0037] The arc-shaped blocks 112 are distributed in an arc shape and occupy four-fifths of the surface area of the cylinder axis 113. Coupled with the fact that the sizes of the crushing teeth 117 are arranged in an increasing order, the crushing process becomes more efficient and uniform. Different crushing forces can be provided according to different stages of the material, achieving a progressive crushing effect. As the arc-shaped blocks 112 drive the crushing teeth to rotate, the refining slag first contacts the smaller crushing teeth for preliminary crushing, and then gradually contacts the larger crushing teeth to complete further fine crushing, ensuring the thoroughness and consistency of crushing. By means of the first hydraulic rod 5 provided in the crushing mechanism 7, the distance between the crushing mechanism and the pulverizing mechanism can be dynamically adjusted to achieve precise control over the degree of material crushing.

[0038] The crushing mechanism 7 includes an arc-shaped half-shell 72. At the upper part of the outer surface of the arc-shaped half-shell 72, there is a first support rod 71, and both ends of the first support rod 71 are rotatably connected to the first hydraulic rod 5. At the lower part of the outer surface of the arc-shaped half-shell 72, there is a first rotating shaft rod 74 rotatably connected to the explosion-proof housing 8. Inside the wall of the arc-shaped half-shell 72, there is a thickening push plate 75, and inside the arc-shaped half-shell 72, there are a number of fixing bolts 73 for fixing the position of the thickening push plate 75. The thickening push plate 75 is in a semi-circular arc shape, and the wall thickness of the thickening push plate 75 gradually increases.

[0039] A number of mounting grooves 77 are arranged at equal intervals on the inner wall of the thickening push plate 75. Inside each of the number of mounting grooves 77, there is a clamping strip 78. At the bottom of the clamping strip 78, there is a bolt column 711 for fixing the position of the clamping strip 78. Inside the clamping strip 78, there is a fixing groove 79, and inside the fixing groove 79, there is a cross-strip knife 76.

[0040] It should be noted that after being screened by the filter grid 13, the refining slag will fall between the thickening push plate 75 and the crushing teeth 117. The refining slag contacts the cross-strip knife 76 and is crushed by the rotation of the crushing teeth 117. After the refining slag is crushed by the rotation of the crushing teeth 117, the crushed refining slag will continue to fall downward with the rotation of the crushing teeth 117. During the falling process of the refining slag, it contacts the cross-strip knife 76 again for secondary crushing. Due to the fact that the thickening push plate 75 is in a sickle shape, the distance between the cross-strip knife 76 and the crushing teeth 117 gradually decreases, enabling the refining slag to be crushed gradually from large to small. Moreover, the first hydraulic rod 5 provided can adjust the distance between the cross-strip knife 76 and the crushing teeth 117 according to the crushing requirements of the refining slag.

[0041] Among them, the filter grid 13 conducts preliminary screening on the refining slag entering the feed inlet, separating large particles and small particles, which can improve the efficiency of subsequent processing steps and ensure that each size of material can be processed in the most suitable manner according to its characteristics. The large particles are directly sent between the thickening push plate 75 and the crushing teeth 117 for crushing, while the small particles may directly enter the next process or be further refined.

[0042] The thickening push plate 75 is in a sickle shape, so that the distance between the cross bar knife 76 and the crushing teeth 117 gradually decreases, enabling progressive crushing of the material and ensuring effective treatment of materials with different particle sizes from large to small. As the material moves inside the equipment, they will first contact the larger gap, and then as the gap gradually becomes smaller, the pressure on the material increases, thus achieving finer crushing. The first hydraulic rod 5 can dynamically adjust the distance between the cross bar knife 76 and the crushing teeth 117 according to the crushing requirements of the refining slag, allowing the equipment to make real-time adjustments according to the actual state of the material to ensure the best crushing effect. By adjusting the distance, appropriate crushing force can be provided for materials with different hardness or sizes, avoiding over-crushing or under-crushing, and improving the adaptability and working efficiency of the equipment.

[0043] Moreover, the material contacts the cross bar knife 76 and the crushing teeth 117 multiple times during the falling process, and after multiple breakings, it ensures that the material can be fully crushed to the required particle size. Each contact provides a new crushing opportunity, so that even relatively hard large pieces of material can be thoroughly crushed, reducing the possibility of residual large particles and improving the quality of the final product.

[0044] Embodiment 3: Based on the material leakage mechanism 12 and the crushing mechanism 10 provided in Embodiment 1, this embodiment provides a further technical solution for the material leakage mechanism 12 and the crushing mechanism 10.

[0045] The material leakage mechanism 12 includes a ribbed plate 121. The bottom of the explosion-proof housing 8 is provided with a discharge pipe 9, and the ribbed plate 121 is installed at the upper end of the discharge pipe 9. A number of equally spaced inclined material ports 123 for screening small particle refining slag are arranged on the outer surface of the ribbed plate 121, and a plurality of equally spaced guide plates 122 are arranged on the inner wall of the ribbed plate 121.

[0046] It should be noted that when the refining slag is crushed by the crushing mechanism 7 and the crushing mechanism 11, it will fall onto the ribbed plate 121, and the qualified crushed refining slag will be discharged through the inclined material ports 123, while the refining slag staying on the ribbed plate 121 is separated by the guide plates 122. When the crushing teeth 117 rotate, the guide plates 122 will penetrate into the grooves 118, and the crushing teeth 117 will push the refining slag on the ribbed plate 121 into the crushing mechanism 10. Due to the design of the crushing teeth 117 being Figure 16 in the shape shown, it can push the refining slag in the ribbed plate 121 into the interior of the crushing mechanism 10 as the crushing teeth 117 rotate.

[0047] The crushing mechanism 10 further includes a pushing cover housing 102. A second support rod 101 is provided at the upper end of the pushing cover housing 102. Both ends of the second support rod 101 are rotatably connected to the second hydraulic rod 6. Second rotating shaft rods 103 rotatably connected to the explosion-proof housing 8 are provided on the lower part of the outer surface of the pushing cover housing 102. The tapered arc piece 104 is attached to the inner wall of the pushing cover housing 102, and fastening bolts 106 for fixing the position of the tapered arc piece 104 are provided inside the pushing cover housing 102.

[0048] The crushing mechanism 10 includes a tapered arc piece 104 and crushing teeth 105. A plurality of protruding teeth 109 are arranged at equal intervals inside the crushing teeth 105. The crushing ends of the crushing teeth 105 and the protruding teeth 109 are both serrated. The tapered arc piece 104 is arc-shaped, and the wall thickness of the tapered arc piece 104 gradually increases.

[0049] Among them, as the crushing teeth 117 rotate, the pushed refined slag will first come into contact with the crushing teeth 105, and the protruding teeth 109 will be stuck into the inside of the groove 118, capable of crushing the refined slag pushed by the crushing teeth 117. Since the crushing ends of the crushing teeth 105 and the protruding teeth 109 are both serrated, they can fully contact the refined slag for crushing.

[0050] A number of fastening bolts 106 are arranged at equal intervals on the inner wall of the tapered arc piece 104. Connecting shells 107 are provided inside the a number of fastening bolts 106, and the crushing teeth 105 are installed inside the connecting shells 107.

[0051] Among them, due to the design of the tapered arc piece 104 with a gradually increasing wall thickness, the distance between the crushing teeth 117 and the crushing teeth 105 gradually decreases when the crushing teeth 117 rotate, capable of gradually crushing the refined slag. And the provided second hydraulic rod 6 can adjust the distance between the crushing teeth 117 and the crushing teeth 105 according to requirements. Through the cooperation of the crushing teeth 105 and the protruding teeth 109 with the crushing teeth 117, the refined slag can be crushed in a secondary and step-by-step manner.

[0052] Among them, the refined slag preliminarily crushed by the crushing mechanism 7 and the pulverizing mechanism 11 falls onto the ribbed plate 121. Among them, the qualified materials are directly discharged through the inclined material outlet 123, while the large particles that do not meet the requirements are left on the ribbed plate for further processing, effectively separating the materials that have met the particle size requirements, reducing unnecessary secondary processing steps, and improving the overall efficiency.

[0053] When the crushing teeth 117 rotate, the guiding piece 122 extends into the groove 118, pushing the large-particle refined slag staying on the ribbed plate 121 to the crushing mechanism 10, ensuring that all the materials requiring further processing can be accurately fed into the next process. And through the cooperation of the mechanical structure, the materials can be efficiently guided to the correct processing path, reducing the possibility of material accumulation or omission.

[0054] The sawtooth shape design of the crushing teeth 105 and the protruding teeth 109 enables them to come into contact with the refined slag more fully, providing a stronger crushing force. In addition, the design of the gradually increasing wall thickness of the gradually thickening arc piece 104 allows the distance between the crushing teeth 117 and the crushing teeth 105 to gradually decrease, further enhancing the crushing effect.

[0055] Moreover, the second hydraulic rod 6 can dynamically adjust the distance between the crushing teeth 117 and the crushing teeth 105 according to requirements, allowing the equipment to make real-time adjustments according to the actual material state to ensure the best crushing effect. By adjusting the distance, appropriate crushing force can be provided for materials of different hardness or sizes, avoiding the situations of over-crushing or under-crushing, and improving the adaptability and working efficiency of the equipment.

[0056] Through the cooperation of the crushing teeth 117, the crushing teeth 105 and the protruding teeth 109, the secondary step-by-step crushing of the refined slag is achieved. The multi-stage crushing method ensures that all materials can reach the required particle size standard, and even relatively hard or large particles can be thoroughly crushed, reducing the possibility of residual large particles.

[0057] The present invention also provides a using method for the crushing device for sintering refined slag. The specific using method is as follows: Step 1: Pour the sintered refined slag into the feed inlet 4. The driving motor 1 drives the conveyor belt wheel 3 to rotate through the output shaft. The conveyor belt 2 is used for the transmission between the two conveyor belt wheels 3, and the conveyor belt wheel 3 drives the crushing mechanism 11 to rotate to crush the sintered refined slag. When the sintered refined slag enters the interior of the feed inlet 4, it first passes through the filter grid 13 for filtering. The filter grid 13 screens the sintered refined slag, and the large-particle sintered refined slag screened out is sent to be crushed between the crushing mechanism 7 and the crushing mechanism 11, while the small-particle sintered refined slag is sent to be crushed between the crushing mechanism 10 and the crushing mechanism 11; Step 2: After continuous crushing between the crushing mechanism 11 and the crushing mechanism 7, the large-particle sintered refined slag falls onto the material leakage mechanism 12. Due to the adjustment of the first hydraulic rod 5 for the crushing mechanism 7, the distance between the crushing mechanism 7 and the crushing mechanism 11 gradually decreases, making the sintered refined slag in a gradually crushed state between the crushing mechanism 7 and the crushing mechanism 11; Step 3: After the sintered refining slag is crushed by the crushing mechanism 7 and the pulverizing mechanism 11 and falls onto the material leakage mechanism 12, the small-particle sintered refining slag will enter the discharge pipe 9 through the material leakage mechanism 12, while the sintered refining slag remaining on the material leakage mechanism 12 will be sent into the grinding mechanism 10 along with the rotation of the pulverizing mechanism 11 to cooperate with the pulverizing mechanism 11 for grinding, so that the sintered refining slag can be secondarily pulverized according to the degree of pulverization, and the distance between the grinding mechanism 10 and the pulverizing mechanism 11 is in a gradually decreasing state to grind the sintered refining slag.

[0058] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A crushing device for sintered refined slag, comprising an explosion-proof housing (8) and a driving motor (1), wherein one side of the explosion-proof housing (8) and the driving motor (1) are both provided with a conveyor pulley (3), and the outer surfaces of the two conveyor pulleys (3) are both provided with a conveyor belt (2), characterized in that: The upper end of the explosion-proof housing (8) is provided with a feed port (4), the middle of the inner cavity of the explosion-proof housing (8) is provided with a crushing mechanism (11) for crushing refined slag, one side of the explosion-proof housing (8) is provided with a crushing mechanism (7) for cooperating with the crushing mechanism (11) to crush large particles of refined slag, the bottom of the inner cavity of the explosion-proof housing (8) is provided with a leakage mechanism (12) for filtering small particles of refined slag, and one side of the explosion-proof housing (8) is provided with a crushing mechanism (10) for cooperating with the crushing mechanism (11) to crush the residual refined slag filtered in the leakage mechanism (12); The crushing mechanism (10) comprises a gradually thickening arc piece (104) and a crushing tooth (105); a plurality of protruding teeth (109) are arranged inside the crushing tooth (105) and are distributed at equal intervals; the crushing ends of the crushing teeth (105) and the protruding teeth (109) are both in a sawtooth shape; the gradually thickening arc piece (104) is in an arc shape; and the wall thickness of the gradually thickening arc piece (104) gradually increases.

2. The crushing device for sintered refined slag according to claim 1, characterized in that: A filter grid (13) for screening refined slag is arranged inside the feed port (4), first hydraulic rods (5) for controlling the crushing distance between the crushing mechanism (7) and the pulverizing mechanism (11) are arranged on both sides of the feed port (4), and second hydraulic rods (6) for controlling the crushing distance between the crushing mechanism (10) and the pulverizing mechanism (11) are arranged on both sides of the explosion-proof housing (8).

3. The crushing device for sintered refined slag according to claim 1, characterized in that: The material leakage mechanism (12) comprises a strip edge plate (121), a discharge pipe (9) is arranged at the bottom of the explosion-proof housing (8), the strip edge plate (121) is installed at the upper end of the discharge pipe (9), a plurality of inclined material ports (123) are arranged on the outer surface of the strip edge plate (121) at equal intervals for screening small particles of refined slag, and a plurality of guide vanes (122) are arranged on the inner wall of the strip edge plate (121) at equal intervals.

4. The crushing device for sintered refined slag according to claim 1, characterized in that: The pulverizing mechanism (11) comprises a support shaft (111), the support shaft (111) being rotatably mounted inside the explosion-proof housing (8), and one end of the support shaft (111) being fixedly connected to the conveyor pulley (3), the outer surface of the support shaft (111) being provided with a cylindrical shaft (113), and the outer surface of the cylindrical shaft (113) being provided with a plurality of strip grooves (114) distributed in a ring array.

5. The crushing device for sintered refined slag according to claim 4, characterized in that: A connecting block (115) is arranged inside the strip groove (114), and a plurality of placement grooves (116) distributed at equal intervals are provided on the inner wall of the connecting block (115). An arc block (112) is arranged inside each of the placement grooves (116), and a plurality of crushing teeth (117) of increasing sizes are arranged on the outer surface of the arc block (112), and a groove (118) is provided inside the crushing teeth (117).

6. The crushing device for sintered refined slag according to claim 1, characterized in that: The crushing mechanism (7) comprises an arc half shell (72), a first support rod (71) is arranged on the upper part of the outer surface of the arc half shell (72), both ends of the first support rod (71) are rotatably connected to the first hydraulic rod (5), a first rotating shaft rod (74) is arranged on the lower part of the outer surface of the arc half shell (72) and is rotatably connected to the explosion-proof housing (8), a gradually thickening push piece (75) is arranged on the inner wall of the arc half shell (72), and a plurality of fixing bolts (73) for fixing the position of the gradually thickening push piece (75) are arranged inside the arc half shell (72), the gradually thickening push piece (75) is in a semicircular arc shape, and the wall thickness of the gradually thickening push piece (75) gradually increases.

7. The crushing device for sintered refined slag according to claim 6, characterized in that: The inner wall of the gradually thickening push piece (75) is provided with a plurality of installation grooves (77) distributed at equal intervals, a clamping strip (78) is arranged inside each of the installation grooves (77), a bolt column (711) for fixing the position of the clamping strip (78) is arranged at the bottom of the clamping strip (78), a fixing groove (79) is arranged inside the clamping strip (78), and a horizontal blade (76) is arranged inside the fixing groove (79).

8. The crushing device for sintered refined slag according to claim 1, characterized in that: The crushing mechanism (10) further comprises a push cover shell (102), the upper end of which is provided with a second support rod (101), both ends of which are rotatably connected to a second hydraulic rod (6), the lower part of the outer surface of the push cover shell (102) is provided with a second rotating shaft rod (103) rotatably connected to the explosion-proof housing (8), the gradually thickening arc sheet (104) is fitted to the inner wall of the push cover shell (102), and a fastening bolt (106) for fixing the position of the gradually thickening arc sheet (104) is provided inside the push cover shell (102).

9. The crushing device for sintered refined slag according to claim 8, characterized in that: The inner wall of the gradually thickened arc sheet (104) is provided with a plurality of fastening bolts (106) distributed at equal intervals, a connecting shell (107) is provided inside each of the fastening bolts (106), and the crushing teeth (105) are installed inside the connecting shell (107).

10. A method for using the sintered refined slag crushing device according to any one of claims 1 to 9, characterized in that: The specific usage is as follows: Step 1: pour the sintered refined slag into the feed port (4), drive the motor (1) to drive the conveyor pulley (3) to rotate through the output shaft, and the conveyor belt (2) is used for transmission between the two conveyor pulleys (3), and the conveyor pulley (3) drives the crushing mechanism (11) to rotate to crush the sintered refined slag. When the sintered refined slag enters the feed port (4), it is first filtered through the filter grid (13), and the filter grid (13) screens the sintered refined slag. The large particles of sintered refined slag screened out are sent to the crushing mechanism (7) and the crushing mechanism (11) for crushing, and the small particles of sintered refined slag are sent to the crushing mechanism (10) and the crushing mechanism (11) for crushing; Step 2: The large-particle sintered refined slag is continuously crushed between the crushing mechanism (11) and the crushing mechanism (7) and then falls onto the material leakage mechanism (12). After the crushing mechanism (7) is adjusted by the first hydraulic rod (5), the distance between the crushing mechanism (7) and the crushing mechanism (11) is gradually reduced, so that the sintered refined slag is gradually crushed between the crushing mechanism (7) and the crushing mechanism (11); Step 3: After the sintered refined slag is crushed by the crushing mechanism (7) and the pulverizing mechanism (11) and falls onto the leaking mechanism (12), the small particles of sintered refined slag will enter the discharge pipe (9) through the leaking mechanism (12), while the sintered refined slag remaining on the leaking mechanism (12) will be sent into the grinding mechanism (10) as the pulverizing mechanism (11) rotates and is crushed in cooperation with the grinding mechanism (11), so that the sintered refined slag can be crushed for a second time according to the degree of crushing, and the distance between the grinding mechanism (10) and the pulverizing mechanism (11) is gradually reduced to crush the sintered refined slag.

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