Continuous drying equipment for lump ore

Abstract

The utility model discloses continuous lump ore drying equipment which comprises a baking heating cylinder, an air blowing seat is connected to the middle of the baking heating cylinder, a drying vertical pipe is connected to the air outlet end of the baking heating cylinder, a separation conveying box is connected to one side of the outer wall of the middle of the drying vertical pipe, and a feeding hopper is connected to the top end of the drying vertical pipe. The side, deviating from the separation conveying box, of the bottom of the drying vertical pipe communicates with the outer side, the side, close to the separation conveying box, of the top of the drying vertical pipe is connected with a circulating barrel, and the other end of the circulating barrel is in sealed connection with the air inlet end of the baking heating barrel. The lump ore drying device is provided with the baking heating cylinder and the air blowing base, high-speed flowing high-temperature air can be conveyed into the drying vertical pipe at one end of the baking heating cylinder, lump ore entering the drying vertical pipe can be rapidly air-dried by the high-temperature air, and therefore the drying efficiency of the lump ore is improved, meanwhile, the air drying mode does not have a blind area, and the drying efficiency is improved. And all positions of the dried lump ore can be kept dry.

Description

Technical Field

[0001] The utility model relates to the technical field of lump ore drying, in particular to a continuous lump ore drying device. Background Art

[0002] Lump ore refers to the block ore that is naturally formed due to physical or chemical reasons during the mining process. They usually have a higher grade and do not require sintering or pelletizing treatment. They can be directly put into the blast furnace for smelting. The lump ore can be naturally formed or obtained by mechanical crushing and screening.

[0003] During the blast furnace smelting process of lump ore, in order to reduce the water content and powder content of the lump ore, improve the ratio of the lump ore, and maintain the stable and smooth operation of the blast furnace, the lump ore needs to be kept dry during smelting. Generally, the lump ore is dried by moving a conveyor belt in a high-temperature channel, which drives the lump ore to be slowly baked to keep the lump ore dry. This method is difficult to dry all positions of the lump ore, and the baking and drying efficiency is extremely low. Therefore, it is urgent to design a continuous drying equipment for lump ore to solve the above problems. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a continuous drying equipment for lump ore, which has the function of high-speed weathering and baking the lump ore by high-speed flowing high-temperature air, so that the lump ore can be dried in a short time. At the same time, all positions of the lump ore can be baked during the air-drying process, and there is no blind spot, so the quality of the lump ore drying can be guaranteed.

[0005] The utility model provides a continuous drying equipment for lump ore:

[0006] It includes a baking heating cylinder, a blowing seat is connected to the middle of the baking heating cylinder, a drying vertical pipe is connected to the air outlet end of the baking heating cylinder, a separation conveying box is connected to one side of the middle outer wall of the drying vertical pipe, a feeding hopper is connected to the top of the drying vertical pipe, the bottom of the drying vertical pipe is connected to the outside on the side away from the separation conveying box, a circulation cylinder is connected to the side of the top of the drying vertical pipe close to the separation conveying box, and the other end of the circulation cylinder is sealed and connected to the air inlet end of the baking heating cylinder.

[0007] Preferably, the middle part of the baking heating cylinder is connected to baking tubes on both sides of the blowing seat, and the baking tubes are evenly distributed and fixed on the inner wall of the baking heating cylinder. The baking tubes can heat the air entering the baking heating cylinder, allowing the blowing seat to continuously transport high-temperature air to the inside of the drying vertical pipe to quickly dry the lump ore.

[0008] Preferably, a cross fixing frame is fixed to the inner walls at both ends of the blowing seat, and a rotating shaft is rotatably connected to the center of the cross fixing frame. The outer wall of the rotating shaft is connected to an annularly distributed air supply blades, and one end of the rotating shaft is connected to a transmission gear, and a driving motor is fixed to the top surface of the baking heating cylinder close to the blowing seat. A transmission toothed belt is sleeved on the outer side of the transmission gear, and the other side of the transmission toothed belt is sleeved on the output end of the driving motor. The cross fixing frame can fix the rotating shaft to ensure the stability of the rotating shaft during rotation, and the air supply blades connected to the outer wall of the rotating shaft can transport the air at the tail of the baking and heating cylinder to the direction of the drying vertical pipe. (It should be noted that: the air supply blades are provided with two groups, which have stronger wind force, and the position where the driving motor is connected to the transmission toothed belt is connected with a gear, and the transmission toothed belt is driven to rotate by the gear, so that the transmission toothed belt can drive the rotating shaft to rotate, and the gear at the end of the rotating shaft and the gear at the output end of the driving motor are both limit gears, and the transmission toothed belt will not separate from the gear during high-speed rotation).

[0009] Preferably, a discharge hopper is provided at the position where the drying vertical pipe is connected to the outside, and an inclined feeding ventilation plate is connected to the bottom of the discharge hopper inside the drying vertical pipe. The discharge hopper can discharge the dried lump ore to a farther distance to prevent the lump ore from accumulating and blocking the discharge port of the drying vertical pipe. The ventilation plate can block the connection between the drying vertical pipe and the baking heating cylinder, thereby blocking the lump ore and allowing hot air to flow into the inside of the drying vertical pipe.

[0010] Preferably, the separation conveying box is rotatably connected with transmission rollers on the upper and lower sides, and a conveying motor is fixed at the position of the transmission roller connected to the upper part of the separation conveying box, and the output end of the conveying motor is transmission-connected to the transmission roller, and a conveyor belt is sleeved on the outer side of the transmission roller, and separation rods equidistantly distributed are fixed on the outer wall of the conveyor belt. When the lump ore enters the drying vertical pipe, the separation conveying box can use the rotating conveyor belt and separation rods to transport a specified number of lump ore into the drying vertical pipe, so as to avoid the lump ore being stuck on the inner side of the drying vertical pipe and ensure the transportation efficiency of the lump ore.

[0011] Preferably, a Z-shaped material-blocking cylinder is provided at one end of the circulation cylinder connected to the drying vertical pipe, and the bottom end of the Z-shaped material-blocking cylinder is connected to the inside of the drying vertical pipe. The Z-shaped material-blocking cylinder can prevent the lump ore inside the drying vertical pipe from entering the inside of the circulation cylinder.

[0012] Compared with the related art, the continuous drying equipment for lump ore provided by the utility model has the following beneficial effects:

[0013] 1. The utility model is provided with a baking heating cylinder and a blowing seat, which can deliver high-speed high-temperature air to the inside of the drying vertical pipe at one end of the baking heating cylinder, so that the lump ore entering the drying vertical pipe can be quickly dried by the high-temperature air, thereby improving the drying efficiency of the lump ore. At the same time, there is no blind spot in the air drying method, so that all positions of the lump ore after drying can be kept dry.

[0014] 2. The circulation cylinder connected to one side of the drying vertical pipe can guide the hot air after baking the lump ore to the tail of the baking heating cylinder, so as to realize the recycling of hot air and improve the utilization rate of heat. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A structural schematic diagram of a preferred embodiment of a continuous drying device for lump ore provided by the utility model;

[0016] Figure 2 for Figure 1 The schematic diagram of the structure of the middle section shown;

[0017] Figure 3 for Figure 2 The structural exploded and enlarged schematic diagram of the baking heating cylinder position shown;

[0018] Figure 4 for Figure 2 A schematic diagram of the structural breakdown and enlargement of the separation conveying box position is shown.

[0019] Numbers in the figure: 1. baking heating cylinder; 2. blowing seat; 3. drying vertical pipe; 4. separation conveying box; 5. feeding hopper; 6. circulation cylinder; 11. baking tube; 21. cross fixing frame; 22. rotating shaft; 23. air supply blade; 24. transmission gear; 25. driving motor; 26. transmission toothed belt; 31. discharging hopper; 32. inclined feeding ventilation plate; 41. driving roller; 42. conveying motor; 43. conveying belt; 44. separation rod; 61. Z-shaped material blocking cylinder. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0021] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0022] Please see attached Figure 1-Figure 4 The present invention provides a continuous drying device for lump ore, and the continuous drying device for lump ore includes:

[0023] The baking heating cylinder 1 has baking tubes 11 arranged equidistantly fixed on both sides of the interior of the baking heating cylinder 1, which can provide hot air to the interior of the baking heating cylinder 1 continuously for a long time.

[0024] A blowing seat 2 is provided in the middle of the baking heating cylinder 1. The blowing seat 2 can use the driving motor 25 to drive the air supply blades 23 to rotate, and transport the air heated by the baking tube 11 to the end of the baking heating cylinder 1, forming a high-speed flow of high-temperature air, so that the lump ore can be quickly dried.

[0025] The end of the air outlet of the baking heating cylinder 1 is sealed and connected with a drying vertical pipe 3. The bottom of the drying vertical pipe 3 is connected with the baking heating cylinder 1, and can receive the high-speed high-temperature air flowing inside the baking heating cylinder 1, so that the lump ore entering the hopper 5 at the top can be baked by the high-speed high-temperature air, and the high-speed high-temperature air can be used to quickly complete the air drying of the lump ore.

[0026] A discharge port is provided at the bottom of the drying vertical pipe 3 on one side away from the baking heating cylinder 1, and a discharge hopper 31 is connected to the discharge port. The discharge port can deliver the dried lump ore, and the discharge hopper 31 can transport the lump ore to a distant location to avoid accumulation at the discharge port.

[0027] The position where the drying vertical pipe 3 is connected to the discharge hopper 31 is connected with an inclined feeding ventilation plate 32, which can deliver the lump ore to the discharge port and prevent the lump ore from falling into the inner side of the baking heating cylinder 1.

[0028] It should be noted that the top of the discharge hopper 31 is hinged to the drying vertical pipe 3 and has the function of rotation. When in use, it can close and seal the discharge port of the drying vertical pipe 3 to ensure that hot air flows inside the drying vertical pipe 3. When the lump ore is transported to the discharge port of the drying vertical pipe 3, due to the setting of the inclined feeding ventilation plate 32, the air is blocked by the lump ore and will flow from the upper part of the inclined feeding ventilation plate 32 to the inside of the drying vertical pipe 3, drying the lump ore inside the drying vertical pipe 3, and only a small amount of air will be blown out from the discharge hopper 31.

[0029] A separation conveying box 4 is provided on one side of the middle of the drying vertical pipe 3 close to the baking heating cylinder 1. The separation conveying box 4 can use the conveying motor 42 to drive the conveyor belt 43 to rotate, so that the separation rod 44 connected to the outer wall of the conveyor belt 43 can convey a specified number of lump ore to the bottom of the drying vertical pipe 3, which can not only ensure the efficiency of transportation, but also ensure the drying quality of the lump ore.

[0030] A circulation cylinder 6 is connected to one side of the top of the drying vertical pipe 3. The circulation cylinder can allow the used hot air to circulate to the tail of the baking heating cylinder 1 for reuse. The Z-shaped material blocking cylinder 61 set at the position where the circulation cylinder is connected to the drying vertical pipe 3 can prevent the lump ore from entering the inside of the circulation cylinder.

[0031] Usage process:

[0032] The lump ore is put into the inner side of the feed hopper 5, and then the lump ore will slide to the middle of the inner side of the drying vertical pipe 3. At this time, with the rotation of the conveyor belt 43 inside the separation and conveying box 4, a specified number of lump ore will be moved by the separation rod 44, and move to the lower part of the drying vertical pipe 3 along the conveyor belt 43. At this time, due to the limited number of lump ore to be moved, the hot air sent out from the baking heating cylinder 1 will quickly bake and dry the lump ore. When the lump ore is separated from the separation and conveying box 4, it will fall to the surface of the inclined feeding ventilation plate 32, and be sent out through the discharge hopper 31 to complete the drying of the lump ore.

[0033] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0034] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A continuous drying equipment for lump ore, characterized in that: The invention comprises a baking heating cylinder (1), wherein the middle part of the baking heating cylinder (1) is connected to a blowing seat (2), the air outlet end of the baking heating cylinder (1) is connected to a drying vertical pipe (3), one side of the middle outer wall of the drying vertical pipe (3) is connected to a separation conveying box (4), the top of the drying vertical pipe (3) is connected to a feed hopper (5), the bottom of the drying vertical pipe (3) is connected to the outside on the side away from the separation conveying box (4), the top of the drying vertical pipe (3) is connected to a circulation cylinder (6) on the side close to the separation conveying box (4), and the other end of the circulation cylinder (6) is sealed and connected to the air inlet end of the baking heating cylinder (1).

2. The continuous drying equipment for lump ore according to claim 1, characterized in that: The middle of the baking heating cylinder (1) is located on both sides of the blowing seat (2) and is connected to baking tubes (11), and the baking tubes (11) are evenly distributed and fixed on the inner wall of the baking heating cylinder (1).

3. The continuous drying equipment for lump ore according to claim 1, characterized in that: A cross fixing frame (21) is fixed to the inner wall at both ends of the blowing seat (2); a rotating shaft (22) is rotatably connected to the center of the cross fixing frame (21); an annularly distributed air supply blades (23) are connected to the outer wall of the rotating shaft (22); one end of the rotating shaft (22) is connected to a transmission gear (24); a driving motor (25) is fixed to the top surface of the baking heating cylinder (1) on one side close to the blowing seat (2); a transmission toothed belt (26) is sleeved on the outer side of the transmission gear (24); and the other side of the transmission toothed belt (26) is sleeved on the output end of the driving motor (25).

4. The continuous drying equipment for lump ore according to claim 1, characterized in that: A discharge hopper (31) is provided at a position where the drying vertical pipe (3) is connected to the outside, and an inclined feeding ventilation plate (32) is connected to the bottom end of the discharge hopper (31) inside the drying vertical pipe (3).

5. The continuous drying equipment for lump ore according to claim 1, characterized in that: The separation conveying box (4) is rotatably connected to transmission rollers (41) on both upper and lower sides thereof; a conveying motor (42) is fixedly connected to the transmission roller (41) at the upper part of the separation conveying box (4); an output end of the transmission motor (42) is transmission-connected to the transmission roller (41); a conveying belt (43) is sleeved on the outer side of the transmission roller (41); and separation rods (44) distributed equidistantly are fixed to the outer wall of the conveying belt (43).

6. The continuous drying equipment for lump ore according to claim 1, characterized in that: A Z-shaped material blocking cylinder (61) is provided at one end of the circulation cylinder (6) connected to the drying vertical pipe (3), and the bottom end of the Z-shaped material blocking cylinder (61) is communicated with the interior of the drying vertical pipe (3).

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