Hot-metal ladle bottom castable raw material crushing device

Abstract

The utility model relates to the field of hot-metal bottle pouring material crushing devices, in particular to a hot-metal bottle bottom pouring material raw material crushing device, and aims to solve the technical problem that an existing hot-metal bottle bottom pouring material raw material crushing device is easy to cause incomplete crushing during raw material crushing. According to the technical scheme, the molten iron tank bottom castable raw material crushing device comprises a crushing bin, a feeding assembly, a first crushing mechanism, a second crushing mechanism, a dust removal assembly and a filtering assembly; according to the high-alumina bauxite crushing device, high-alumina bauxite raw materials entering the crushing device are crushed twice through the first crushing mechanism and the second crushing mechanism which are arranged and distributed up and down, meanwhile, crushed particles are classified into qualified crushed particles and unqualified crushed particles through the filtering assembly, and the unqualified crushed particles are directly conveyed out of the device to wait for next crushing, so that the crushing efficiency of the high-alumina bauxite crushing device is greatly improved. Due to the design, the crushing efficiency is improved, the problem that finished products and inferior-quality products of crushed particles are mixed together is solved, and the efficiency of the crushing device is improved.

Description

Technical Field

[0001] The utility model belongs to the field of a molten iron tank casting material crushing device, in particular to a molten iron tank tank bottom casting material raw material crushing device. Background Art

[0002] When collecting and transporting molten iron from blast furnace ironmaking products, molten iron tanks are required as molten iron storage and transportation materials. Since the molten iron itself has an extremely high temperature and absorbs heat quickly and dissipates heat slowly, high-alumina clinker with very significant refractory effect is often used as casting material at the bottom of the molten iron tank. The high-alumina clinker needs to be crushed by a crushing device and then needs to go through a calcination process before it can be obtained.

[0003] At present, the high-alumina crushing equipment on the market is prone to incomplete crushing due to the different forms of high-alumina as a natural mineral. During the subsequent calcination process, these larger particles are likely to affect the quality of the output high-alumina clinker.

[0004] Therefore, in view of the fact that the above-mentioned existing high-alumina bauxite crushing equipment is prone to incomplete crushing of high-alumina bauxite, the existing crushing device is improved so that it can distinguish the particles that are not completely crushed from the particles that are completely crushed, so as to facilitate secondary crushing of these particles. Utility Model Content

[0005] In order to overcome the problem that the existing molten iron tank bottom casting material raw material crushing device is prone to incomplete crushing during raw material crushing.

[0006] The technical solution of the utility model is: a device for crushing raw materials for castings at the bottom of a molten iron tank, comprising a crushing bin, a feeding assembly, a No. 1 crushing mechanism, a No. 2 crushing mechanism, a dust removal assembly, and a filtering assembly; a feed port is provided on the crushing bin, a feeding assembly is provided below the feed port, a No. 1 crushing mechanism installed in the crushing bin is provided below the feeding assembly, a No. 2 crushing mechanism is installed below the No. 1 crushing mechanism, a dust removal assembly is installed in the crushing bin, and a filtering assembly is provided below the dust removal assembly.

[0007] Preferably, by arranging a No. 1 crushing mechanism and a No. 2 crushing mechanism which are arranged vertically in the conventional crushing bin, the No. 2 crushing mechanism will further crush the high-alumina bauxite processed by the No. 1 crushing mechanism to make the crushing work more thorough, the dust removal mechanism will separate the dust generated during the crushing from the raw material particles to prevent the environment from being polluted by too much dust during discharging, the filtering mechanism will classify the crushed particles, the qualified particles will pass through the filter, and the larger particles will be transmitted along the conveyor belt to wait for the second crushing.

[0008] Preferably, the feeding assembly includes an inclined plate and an air hammer; an inclined plate is arranged in the crushing bin, an air hammer is inserted in the front side of the crushing bin, a transmission rod of the air hammer is fixedly connected to the front end of the inclined plate, the inclined plate limits and reduces the falling area of ​​the high-alumina bauxite raw material, and the air hammer pushes the inclined plate to vibrate, and the high-alumina bauxite raw material is fed into the No. 1 crushing mechanism below to prevent the high-alumina bauxite raw material from getting stuck.

[0009] Preferably, the No. 1 crushing mechanism includes a fixed plate, a collision plate, and a cylinder; a fixed plate is fixedly connected in the crushing chamber, a collision plate with an angle is arranged on the rear side of the fixed plate, a cylinder is plugged into the rear side of the crushing chamber, one end of the collision plate is connected to the piston rod of the cylinder, and after the cylinder is started, the piston rod pushes the collision plate to move in the opposite direction of the fixed plate, and the raw materials sandwiched between the fixed plate and the collision plate are crushed. Since the collision plate has an angle, larger particles that have not been successfully crushed will be stuck between the fixed plate and the collision plate, preventing them from falling smoothly.

[0010] Preferably, the No. 2 crushing mechanism includes a crushing wheel and a motor; two crushing wheels opposite to each other are arranged in the crushing bin, a rotating shaft is inserted in the crushing wheel, the motor is installed on the right side of the crushing bin, one end of the rotating shaft is connected to the transmission element of the motor, and the broken particles processed by the No. 1 crushing mechanism fall between the crushing wheels, and the gap between the two crushing wheels is smaller than the gap between the fixed plate and the bottom end of the collision plate. After the motor is started, it will drive the crushing wheel to rotate, grind the broken particles therein, and crush the raw materials into finer particles.

[0011] Preferably, the dust removal component includes a fan, a dust collection box, and a groove. The fan is inserted on the left side of the crushing bin, and a dust collection box with a pipe connected to the crushing bin is provided on the right side of the fan. A groove is provided at the bottom of the connected pipe. The fan blows air at the fallen crushed particles. The dust generated by grinding is not as heavy as the crushed particles, and will be blown into the pipe at the other end by the fan. The groove provided under the pipe allows the dust to smoothly enter the dust collection box, which is convenient for subsequent processing.

[0012] Preferably, the filtering component includes a loading hopper and a filter screen; a loading hopper with an angle is provided in the crushing chamber, and a filter screen is installed in the loading hopper. The crushed particles fall onto the filter screen after dust removal. The qualified crushed particles are smaller than the mesh of the filter screen and will fall into the loading hopper smoothly. The particles that are not crushed thoroughly are larger than the mesh of the filter screen and will be retained on the filter screen. The filter screen classifies the crushed particles into qualified and unqualified.

[0013] Preferably, a conveyor belt is provided on the front side of the filter assembly, and a discharge door is movably connected to the rear side of the crushing bin for taking out the loading hopper. Since the filter screen has its own slope, unqualified crushed particles will automatically slide down the filter screen due to gravity, fall on the conveyor belt, and be sent out of the crushing bin to wait for a second crushing. The discharge door makes it convenient for the staff to take out the loading hopper containing qualified crushed particles from the device.

[0014] Beneficial effects of the utility model:

[0015] 1. The high-alumina raw materials entering the crushing device are crushed twice by the No. 1 crushing mechanism and the No. 2 crushing mechanism arranged up and down, which improves the crushing qualification rate. At the same time, the filter component classifies the crushed particles into two categories: qualified crushing and unqualified crushing. The unqualified crushed particles are directly transported out of the device and wait for the next crushing. This design improves the crushing efficiency and solves the problem of the finished and defective crushed particles being mixed together, thus improving the efficiency of the crushing device;

[0016] 2. The fan in the dust removal mechanism separates the dust generated in the crushing process, which is lighter than the crushed particles, from the crushed particles by blowing air, thereby reducing the dust content of the finished product. There is no need to worry about dust when taking out the finished product, thus protecting the surrounding environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The first three-dimensional structure schematic diagram of the utility model of the device for crushing raw materials of castables at the bottom of a molten iron tank is shown;

[0018] Figure 2 The second three-dimensional structure schematic diagram of the utility model of the molten iron tank bottom casting material raw material crushing device is shown;

[0019] Figure 3 The three-dimensional structure diagram of the second crushing mechanism of the castable raw material crushing device at the bottom of the molten iron tank is shown;

[0020] Figure 4 The first section of the three-dimensional structure diagram of the utility model of the molten iron tank bottom casting material crushing device is shown;

[0021] Figure 5 The second cross-sectional three-dimensional structure schematic diagram of the utility model of the molten iron tank bottom casting material raw material crushing device is shown;

[0022] Figure 6 What is shown is a three-dimensional structural schematic diagram of the filtering component of the castable raw material crushing device at the bottom of the molten iron tank of the utility model.

[0023] Explanation of the reference numerals: 1. Crushing bin; 2. Feeding assembly; 3. Crushing mechanism No. 1; 4. Crushing mechanism No. 2; 5. Dust removal assembly; 6. Filter assembly; 7. Conveyor belt; 201. Inclined plate; 202. Air hammer; 301. Fixed plate; 302. Collision plate; 303. Cylinder; 401. Crushing wheel; 402. Motor; 501. Fan; 502. Dust collection box; 503. Groove; 601. Loading hopper; 602. Filter. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0025] See also Figure 1-2 The utility model provides an embodiment: a raw material crushing device for casting material at the bottom of a molten iron tank includes a crushing bin 1, a feeding assembly 2, a No. 1 crushing mechanism 3, a No. 2 crushing mechanism 4, a dust removal assembly 5, and a filtering assembly 6; a feeding port is opened on the crushing bin 1, a feeding assembly 2 is arranged below the feeding port, a No. 1 crushing mechanism 3 installed in the crushing bin 1 is arranged below the feeding assembly 2, a No. 2 crushing mechanism 4 is installed below the No. 1 crushing mechanism 3, a dust removal assembly 5 is installed in the crushing bin 1, and a filtering assembly 6 is arranged below the dust removal assembly 5. By providing the No. 1 crushing mechanism 3 and the No. 2 crushing mechanism 4 arranged up and down in the traditional crushing bin 1, the No. 2 crushing mechanism 4 will further crush the high-alumina bauxite processed by the No. 1 crushing mechanism 3, so that the crushing work is more thorough, the dust removal mechanism will separate the dust generated during the crushing from the raw material particles to prevent the environment from being polluted by too much dust during the discharge, the filtering mechanism will classify the crushed particles, qualified particles will pass through the filter screen 602, and larger particles will be transmitted along the conveyor belt 7 to wait for the second crushing.

[0026] See also Figure 3-4In this embodiment, the feeding assembly 2 includes an inclined plate 201 and an air hammer 202; an inclined plate 201 is provided in the crushing bin 1, and an air hammer 202 is plugged into the front side of the crushing bin 1, and a transmission rod of the air hammer 202 is fixedly connected to the front end of the inclined plate 201. The first crushing mechanism 3 includes a fixed plate 301, a collision plate 302, and a cylinder 303; a fixed plate 301 is fixedly connected in the crushing bin 1, and an inclined collision plate 302 is provided on the rear side of the fixed plate 301, and a cylinder 303 is plugged into the rear side of the crushing bin 1, and one end of the collision plate 302 is connected to the piston rod of the cylinder 303. The second crushing mechanism 4 includes a crushing wheel 401 and a motor 402; two crushing wheels 401 opposite to each other are provided in the crushing bin 1, and a rotating shaft is plugged into the crushing wheel 401. The motor 402 is installed on the right side of the crushing bin 1, and one end of the rotating shaft is connected to the transmission element of the motor 402. The inclined plate 201 is used for crushing high-alumina bauxite raw materials The falling area is restricted and reduced, and the inclined plate 201 is pushed to vibrate by the air hammer 202 to send the high-alumina bauxite raw material into the No. 1 crushing mechanism 3 below to prevent the high-alumina bauxite raw material from being stuck. After the cylinder 303 is started, the piston rod pushes the collision plate 302 to move in the opposite direction of the fixed plate 301 to crush the raw material sandwiched between the fixed plate 301 and the collision plate 302. Since the collision plate 302 has an inclination, the larger particles that have not been successfully crushed will be stuck between the fixed plate 301 and the collision plate 302 so that they cannot fall smoothly. The broken particles processed by the No. 1 crushing mechanism 3 fall between the breaking wheels 401. The gap between the two breaking wheels 401 is smaller than the gap between the fixed plate 301 and the bottom of the collision plate 302. After the motor 402 is started, it will drive the breaking wheel 401 to rotate, grind the broken particles therein, and break the raw material into finer particles.

[0027] See also Figure 5-6In this embodiment, the dust removal component 5 includes a fan 501, a dust collection box 502, and a groove 503. The fan 501 is inserted on the left side of the crushing bin 1, and a dust collection box 502 with a pipeline communicating with the crushing bin 1 is arranged on the right side of the fan 501. The bottom of the communicating pipeline is provided with a groove 503. The filter component 6 includes a charging hopper 601 and a filter 602; a charging hopper 601 with an inclination is arranged in the crushing bin 1, and a filter 602 is installed on the charging hopper 601. A conveyor belt 7 is arranged on the front side of the filter component 6. The rear side of the crushing bin 1 is movably connected to a discharge door for taking out the charging hopper 601. The fan 501 blows the fallen crushed particles. The dust generated by grinding is not as heavy as the crushed particles and will be blown to another side by the fan 501. The groove 503 provided at the bottom of the pipe allows the dust to smoothly enter the dust collection box 502, which is convenient for subsequent processing. The broken particles fall onto the filter screen 602 after dust removal. The qualified broken particles are smaller than the mesh of the filter screen and will smoothly fall into the loading hopper 601. The particles that are not broken thoroughly enough are larger than the mesh of the filter screen 602 and will be retained on the filter screen 602. The filter screen 602 classifies the broken particles into qualified and unqualified. Since the filter screen 602 has its own slope, the unqualified broken particles will automatically slide down the filter screen 602 due to gravity, fall on the conveyor belt 7, and be sent out of the crushing bin 1 to wait for the second crushing. The discharge door makes it convenient for the staff to take out the loading hopper 601 containing the broken qualified particles from the device.

[0028] When working, the staff first pours the high-alumina bauxite raw material from the feeding port of the crushing device, and the inclined plate 201 limits the falling point of the raw material. At the same time, the air hammer 202 starts to vibrate the inclined plate 201 to prevent the raw material from being stuck in the feeding port. The raw material is fed between the fixed plate 301 and the collision plate 302, and the cylinder 303 is started. The piston rod pushes the collision plate 302 to approach the fixed plate 301, and impacts the raw material sandwiched in the middle to break it. The raw material broken to a suitable size will fall into the second crushing mechanism 4 from the gap at the bottom of the fixed plate 301 and the collision plate 302. After the motor 402 is started, the two crushing wheels 401 start to rotate, and the raw material falling between the crushing wheels 401 is crushed, and the crushed raw material falls from the gap between the two crushing wheels 401;

[0029] When the crushed particles pass through the dust removal mechanism area, the fan 501 is started to blow air to the crushed particles mixed with a large amount of dust generated during crushing. Since the dust is lighter than the crushed particles, the heavier crushed particles continue to fall, while the lighter dust is blown to the other end. A groove 503 is provided on the bottom side of the pipe at the other end. After the dust reaches there, the influence of wind force is weakened, and the dust slides down due to gravity and falls into the dust collection box 502.

[0030] The crushed particles after dust removal fall onto the filter 602. The qualified crushed particles are smaller than the mesh of the filter 602 and will naturally fall into the loading hopper 601. The unqualified crushed particles are larger than the mesh of the filter 602 and will be retained on the filter 602. Since the filter 602 has its own slope, the unqualified crushed particles will automatically slide down and fall into the conveyor belt 7 due to gravity. The conveyor belt 7 will send the unqualified crushed particles out of the device and wait for the second round of crushing. After all the crushing work is completed, the discharge door set at the rear of the raw material crushing device at the bottom of the molten iron ladle can be opened to take the loading hopper 601 filled with finished crushed particles out of the crushing device.

[0031] Through the above steps, the No. 1 crushing mechanism 3 and the No. 2 crushing mechanism 4, which are arranged vertically, crush the high-alumina bauxite raw material entering the crushing device twice to improve the crushing qualification rate. At the same time, the filtering component 6 classifies the crushed particles into two categories: qualified crushing and unqualified crushing, and directly transports the unqualified crushed particles out of the device to wait for the next crushing. This design improves the crushing efficiency and solves the problem of finished products and defective products of crushed particles being mixed together, thereby improving the efficiency of the crushing device to solve the problem that the existing molten iron tank bottom castable raw material crushing device is prone to incomplete crushing during raw material crushing.

[0032] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A device for crushing raw materials of castable materials at the bottom of a molten iron tank, comprising a crushing bin (1); characterized in that: The invention also comprises a feeding assembly (2), a first crushing mechanism (3), a second crushing mechanism (4), a dust removal assembly (5), and a filtering assembly (6); a feeding port is provided on the crushing bin (1), a feeding assembly (2) is arranged below the feeding port, a first crushing mechanism (3) installed in the crushing bin (1) is arranged below the feeding assembly (2), a second crushing mechanism (4) is installed below the first crushing mechanism (3), a dust removal assembly (5) is installed in the crushing bin (1), and a filtering assembly (6) is arranged below the dust removal assembly (5).

2. The device for crushing raw materials of castable materials at the bottom of a molten iron tank according to claim 1, characterized in that: The feeding assembly (2) comprises an inclined plate (201) and an air hammer (202); the inclined plate (201) is arranged in the crushing bin (1), the air hammer (202) is plugged into the front side of the crushing bin (1), and the transmission rod of the air hammer (202) is fixedly connected to the front end of the inclined plate (201).

3. The device for crushing raw materials of castable material at the bottom of a molten iron tank according to claim 1, characterized in that: The first crushing mechanism (3) comprises a fixed plate (301), a collision plate (302), and a cylinder (303); the fixed plate (301) is fixedly connected inside the crushing chamber (1), a collision plate (302) with an inclination is arranged at the rear side of the fixed plate (301), the cylinder (303) is plugged at the rear side of the crushing chamber (1), and one end of the collision plate (302) is connected to the piston rod of the cylinder (303).

4. The device for crushing raw materials of castable material at the bottom of a molten iron tank according to claim 1, characterized in that: The second crushing mechanism (4) comprises a crushing wheel (401) and a motor (402); two crushing wheels (401) are arranged opposite to each other in the crushing bin (1), a rotating shaft is inserted in the crushing wheel (401), the motor (402) is installed on the right side of the crushing bin (1), and one end of the rotating shaft is connected to the transmission element of the motor (402).

5. The device for crushing raw materials of castable material at the bottom of a molten iron tank according to claim 1, characterized in that: The dust removal component (5) comprises a fan (501), a dust collection box (502), and a groove (503). The fan (501) is inserted on the left side of the crushing bin (1), and the dust collection box (502) having a pipeline communicating with the crushing bin (1) is arranged on the right side of the fan (501). The bottom end of the communicating pipeline is provided with a groove (503).

6. The device for crushing raw materials of castable material at the bottom of a molten iron tank according to claim 1, characterized in that: The filter assembly (6) comprises a charging hopper (601) and a filter screen (602); a charging hopper (601) with an inclination is arranged in the crushing chamber (1), and a filter screen (602) is installed on the charging hopper (601).

7. The device for crushing raw materials of castable material at the bottom of a molten iron tank according to claim 6, characterized in that: A conveyor belt (7) is arranged at the front side of the filter assembly (6), and a discharge door for taking out the loading hopper (601) is movably connected to the rear side of the crushing bin (1).

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