Humidifying device for in-furnace coking coal

Abstract

The utility model discloses a humidifying device for in-furnace coking coal, which specifically comprises an obliquely arranged drying cylinder, the bottom of the drying cylinder is provided with an obliquely downward cooling cylinder, the cooling cylinder and the drying cylinder are respectively and rotatably arranged on a support, and the cooling cylinder and the drying cylinder are respectively driven by a driving device to rotate; the bottom of the drying cylinder is rotationally installed in the sealing bin, a combustor for heating the drying cylinder is arranged on the sealing bin, a material guiding channel inclining downwards is installed at the bottom of the sealing bin, and an exhaust device used for exhausting air entering the cooling cylinder outwards is further installed on the bottom feeding bin. When the coal drying device is used, coal needing to be dried enters from the feeding hopper, the coal enters the high-temperature drying cylinder to be rolled and dried, then the coal falls into the cooling cylinder from the material guide channel to be cooled, the cooling cylinder is long, air enters from the bottom in the cooling cylinder, and cold air can take away most heat of the coal, so that the temperature of the coal is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to coking coal moisture adjusting drying technical field, specifically for a kind of for into the furnace coking coal's moisture adjusting device. BACKGROUND

[0002] Coal moisture adjusting is the abbreviation of "furnace charging coal moisture control process", that is, a part of water is removed from coking coal before charging into furnace, and the moisture of charging coal is controlled at about 6%, and then coking production is carried out.If coking coal with high moisture enters coke oven, it needs to consume more heating gas to dry, and a large amount of difficult-to-treat phenolic wastewater is generated, so the coal moisture adjusting technology has the advantages of improving coke quality, reducing coking cost, energy saving and environmental protection.

[0003] Because coal needs to be washed before coking, coal is wet, and in actual production process, coal can be poured into rotary furnace for drying, so that the moisture of coal is quickly discharged, but the existing rotary furnace does not have the function of cooling coal, so that the temperature of coal is high after drying and discharging from the rotary furnace, and cooling is needed before subsequent production. For this reason, we propose a kind of moisture adjusting device for coking coal into the furnace. CONTENT OF THE UTILITY MODEL

[0004] The utility model provides a kind of for into the furnace coking coal's moisture adjusting device, with the advantage that coal enters high-temperature drying cylinder and rolls to dry, and then coal falls into cooling cylinder from material guiding channel and is cooled, which solves the problems raised in the above background technology.

[0005] To achieve the above purpose, the utility model is realized by the following technical scheme: a kind of for into the furnace coking coal's moisture adjusting device, which comprises an inclined drying cylinder, the bottom of the drying cylinder is provided with an inclined downward cooling cylinder, the cooling cylinder and the drying cylinder are respectively rotatably arranged on the support, and the cooling cylinder and the drying cylinder are respectively driven to rotate by the driving device;The bottom of the drying cylinder is rotatably installed in the sealed bin, the sealed bin is provided with a burner for heating the drying cylinder, and the bottom of the sealed bin is provided with an inclined downward material guiding channel;The top of the cooling cylinder is rotatably installed in the bottom feed bin, the bottom of the material guiding channel is connected with the bottom feed bin, and the bottom of the material guiding channel extends into the cooling cylinder, and the top of the material guiding channel is located below the drying cylinder;Air exhausting device is also installed on the bottom feed bin to exhaust air into the cooling cylinder.

[0006] Preferably, the top of the drying cylinder is rotatably installed in the top feed bin, and the top of the top feed bin is provided with a feed hopper at the end away from the drying cylinder;The top feed bin is provided with a material guiding plate, the top of the material guiding plate is located below the feed hopper, and the bottom of the material guiding plate extends into the top of the drying cylinder.

[0007] Preferably, the top feed bin, the sealed bin and the bottom feed bin are respectively arranged on the support through the mounting bracket.

[0008] Preferably, the burner is arranged at the top of the sealing bin far from the drying cylinder, the flame spout of the burner extends into the bottom of the drying cylinder, the flame spout is located above the inner space of the drying cylinder, a flame baffle is arranged below the flame spout, the flame baffle is located above the material guiding channel, and the flame baffle is connected with the sealing bin.

[0009] Preferably, the air inlet of the burner is connected with the outlet of the air inlet fan through a pipeline, and the air inlet of the air inlet fan is connected with the bottom material bin through a pipeline.

[0010] Preferably, the top of the top material bin near the end of the drying cylinder is connected with the second air outlet fan through a pipeline.

[0011] Preferably, the air outlet device comprises a first air outlet fan, and the inlet of the first air outlet fan is connected with the top of the bottom material bin through a pipeline.

[0012] Preferably, a vane unloader is arranged on the material guiding channel between the bottom material bin and the sealing bin.

[0013] Preferably, at least two symmetrical supporting rings are coaxially arranged on the surface of the cooling cylinder and the drying cylinder, the two sides of each supporting ring are arranged in a supporting groove wheel, the two ends of the supporting groove wheel are rotatably arranged in a second bearing seat, and the second bearing seat is arranged on a support base; the driving device arranged on each cooling cylinder and drying cylinder comprises at least one transmission gear ring, the transmission gear ring is coaxially arranged on the cooling cylinder and the drying cylinder, the two sides of each transmission gear ring are engaged with a driving gear, the two ends of the driving gear are rotatably connected with a first bearing seat, and the first bearing seat is arranged on the support base; one side of each transmission gear ring is provided with a speed reducer, the output shaft of the speed reducer is connected with one end of the driving gear, and the input end of the speed reducer is connected with a driving motor.

[0014] Preferably, a plurality of blades are arranged on the inner surfaces of the cooling cylinder and the drying cylinder.

[0015] Compared with the prior art, in use, the coal needing to be dried enters the feeding hopper, the coal enters the high-temperature drying cylinder to be tumbled and dried, then the coal falls into the cooling cylinder through the material guiding channel to be cooled, the cooling cylinder is long, air enters from the bottom of the cooling cylinder, and the cold air can take away most of the heat of the coal, so that the temperature of the coal is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 Fig. 1 is a structural schematic view of one side of the utility model.

[0017] Figure 2 Fig. 2 is a structural schematic view of the other side of the utility model.

[0018] Figure 3 Fig. 3 is a front view of the cooling cylinder and the drying cylinder of the utility model.

[0019] Figure 4 It is the internal structure schematic view of the cooling cylinder and the drying cylinder of the utility model.

[0020] In the drawing: 1, support; 2, first exhaust fan; 3, mounting bracket; 4, cooling cylinder; 5, bottom feed bin; 6, air inlet fan; 7, burner; 8, sealing bin; 9, drying cylinder; 10, transmission gear ring; 11, support ring; 12, top feed bin; 13, feed hopper; 14, support groove wheel; 15, drive gear; 16, speed reducer; 17, first bearing seat; 18, second bearing seat; 19, drive motor; 20, blade; 21, fire lance; 22, flame baffle; 23, material guide channel; 24, material guide plate; 25, second exhaust fan; 26, impeller discharger. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0022] Please refer to Figures 1 to 4 The utility model provides a kind of technical scheme: a kind of humidification device for furnace coking coal, it is inclined to be provided with drying cylinder 9, drying cylinder 9 bottom is provided with inclined downward cooling cylinder 4, cooling cylinder 4 and drying cylinder 9 incline direction is same, but two can be parallelly arranged, also can let cooling cylinder 4 and drying cylinder 9 incline angle be not same.Cooling cylinder 4 and drying cylinder 9 are respectively rotationally arranged on support 1, i.e. cooling cylinder 4 and drying cylinder 9 surface are coaxially installed at least two symmetrically arranged support ring 11, support ring 11 is distributed at the both ends and middle position of cooling cylinder 4 and drying cylinder 9, the both sides of each support ring 11 are placed in support groove wheel 14 respectively, support groove wheel 14 both ends are rotationally installed in second bearing seat 18, and second bearing seat 18 is arranged on support 1, here support 1 is reinforced concrete base;

[0023] Cooling cylinder 4 and drying cylinder 9 are respectively driven to rotate by driving device, and the driving device on each cooling cylinder 4 and drying cylinder 9 is at least one, and the driving device all includes transmission gear ring 10, and transmission gear ring 10 is coaxially installed on cooling cylinder 4, drying cylinder 9 respectively, and the both sides of each transmission gear ring 10 are engaged with drive gear 15, and the both ends of drive gear 15 are rotationally connected in first bearing seat 17, and first bearing seat 17 is arranged on support 1;

[0024] Each transmission gear ring 10 is provided with a reducer 16, the output shaft of the reducer 16 is connected with one end of the drive gear 15, the drive gear 15 connected with the reducer is the driving wheel, and the other drive gear 15 supports the transmission gear ring 10, the input end of the reducer 16 is connected with the driving motor 19, in use, the driving motor 19 drives the drive gear 15 to rotate, the drive gear 15 drives the transmission gear ring 10 to rotate, so the transmission gear ring 10 can drive the cooling cylinder 4 and the drying cylinder 9 to rotate, the driving motor 19 and the reducer 16 are arranged on the support 1.

[0025] As shown in Figure 1 and Figure 2 , the drying cylinder 9 is rotatably installed at the bottom of the sealing bin 8, the sealing bin 8 is provided with a burner 7 for heating the drying cylinder 9, as shown in Figure 3 , the burner 7 is specifically arranged at the top of the end of the sealing bin 8 away from the drying cylinder 9, the flame spout 21 of the burner 7 extends into the bottom of the drying cylinder 9, the burner 7 burns natural gas, after the natural gas is ignited, the flame is sprayed into the drying cylinder 9 from the flame spout 21 to heat the inside of the drying cylinder 9;

[0026] As shown in Figure 3 , the flame spout 21 is above the internal space of the drying cylinder 9 to avoid contact with the coal, a flame baffle 22 is arranged below the flame spout 21, the flame baffle 22 is above the material guide channel 23, and the flame baffle 22 is connected with the sealing bin 8, the flame baffle 22 also extends into the drying cylinder 9, the flame baffle 22 blocks the flame to avoid contact with the coal, so that the flame is always above the coal;

[0027] As shown in Figure 1 , the top of the drying cylinder 9 is rotatably installed in the top feeding bin 12, the top feeding bin 12 is provided with a feeding hopper 13 at the top end away from the drying cylinder 9, the top feeding bin 12 is provided with a material guide plate 24, the top of the material guide plate 24 is below the feeding hopper 13, and the bottom of the material guide plate 24 extends into the top of the drying cylinder 9, so that the coal directly falls into the drying cylinder 9, a plurality of blades 20 are arranged on the inner surface of the drying cylinder 9, the blades 20 can stir the coal. In actual use, the crushed coal is sent into the feeding hopper 13 by the belt conveyor, so that the coal falls along the material guide plate 24 and falls into the drying cylinder. The high temperature in the drying cylinder 9 roasts and dries the coal, so that the water in the coal is evaporated. However, with the passage of time, a large amount of water vapor and waste gas will be concentrated in the drying cylinder 9, so a second exhaust fan 25 is connected with the top end of the top feeding bin 12 near the drying cylinder 9 through a pipeline, the second exhaust fan 25 is arranged on the support 1, and the second exhaust fan 25 is connected with a waste gas treatment device through a pipeline, so that the second exhaust fan 25 continuously discharges the gas outward, thereby reducing the water vapor and waste gas in the drying cylinder 9.

[0028] Further, as shown in Figure 3As shown, a downward-sloping guide channel 23 is installed at the bottom of the sealed bin 8, and the top of the cooling drum 4 is rotatably mounted within the bottom feed bin 5. The bottom of the guide channel 23 is connected to the bottom feed bin 5 and extends into the cooling drum 4, with the top of the guide channel 23 located below the drying drum 9. Therefore, coal falling from the drying drum 9 falls directly into the guide channel 23, allowing the coal to fall along the guide channel 23 into the cooling drum 4. The long length of the cooling drum 4 allows the coal to gradually cool as it moves along the cooling drum 4. The inner surface of the cooling drum 4 is also provided with a number of blades 20 to intensify the tumbling of the coal.

[0029] However, in order to speed up the air flow in the cooling cylinder 4, an exhaust device is further installed on the bottom feed bin 5 to extract the air entering the cooling cylinder 4 to the outside. The exhaust device includes a first exhaust fan 2. The inlet of the first exhaust fan 2 is connected to the top position of the bottom feed bin 5 through a pipe. The first exhaust fan 2 is arranged on the support 1. The first exhaust fan 2 is the same as the second exhaust fan 25. The first exhaust fan 2 also passes the exhaust gas into the exhaust gas treatment device through the pipe. When the first exhaust fan 2 is working, the first exhaust fan 2 extracts the air in the cooling cylinder 4 to form a negative pressure, so the outside cold air will enter from the bottom of the cooling cylinder 4, and the flowing air will take away the heat on the surface of the coal material, thereby quickly reducing the temperature of the coal surface;

[0030] like Figure 3 As shown, in order to prevent the first exhaust fan 2 from extracting the air in the drying cylinder 9, an impeller discharger 26 is installed on the material guide channel 23 between the bottom feed bin 5 and the sealing bin 8. The discharge speed of the impeller discharger 26 is greater than the falling speed of the drying cylinder 9, which can avoid the blockage of the impeller discharger 26. Since the gap between the blades inside the impeller discharger 26 and the cylinder body is very small, the impeller discharger 26 can not only transport the dried coal downward, but also prevent the air in the drying cylinder 9 from flowing downward. Therefore, after the first exhaust fan 2 is turned on, it can only discharge the air in the cooling cylinder 4.

[0031] Furthermore, as explained above, the burner 7 mainly uses natural gas as fuel, so air needs to be continuously introduced into the burner 7. Therefore, the air inlet of the burner 7 is connected to the outlet of the air intake fan 6 through a pipe, and the inlet of the air intake fan 6 is connected to the bottom feed bin 5 through a pipe. The air intake fan 6 draws the preheated air in the cooling cylinder 4 into the burner 7, and in this way the exhaust gas can be utilized.

[0032] The last one, such as Figure 1 and Figure 2 As shown, both sides of the top feed bin 12, the sealing bin 8 and the bottom feed bin 5 are respectively set on the support 1 through the mounting bracket 3, so that the top feed bin 12, the sealing bin 8 and the bottom feed bin 5 are more stable.

[0033] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A humidity control device for coking coal fed into a furnace, comprising a drying cylinder (9) arranged obliquely, characterized in that: A cooling cylinder (4) is provided at the bottom of the drying cylinder (9) and is tilted downward. The cooling cylinder (4) and the drying cylinder (9) are respectively rotatably arranged on the support (1), and the cooling cylinder (4) and the drying cylinder (9) are respectively driven to rotate by a driving device. The bottom of the drying cylinder (9) is rotatably mounted in the sealed chamber (8). A burner (7) for heating the drying cylinder (9) is provided on the sealed chamber (8). A downwardly inclined material guide channel (23) is provided at the bottom of the sealed chamber (8). The top of the cooling cylinder (4) is rotatably mounted in the bottom feed bin (5), the bottom of the material guide channel (23) is connected to the bottom feed bin (5), and the bottom of the material guide channel (23) extends into the cooling cylinder (4), and the top of the material guide channel (23) is located below the drying cylinder (9); An exhaust device is also installed on the bottom feed bin (5) to extract the air entering the cooling cylinder (4) to the outside.

2. The humidity control device for coking coal according to claim 1, characterized in that: The top of the drying cylinder (9) is rotatably mounted in a top feed bin (12), and a feed hopper (13) is mounted on the top end of the top feed bin (12) away from the drying cylinder (9); A material guide plate (24) is provided in the top feed bin (12), the top of the material guide plate (24) is located below the feed hopper (13), and the bottom of the material guide plate (24) extends into the top of the drying cylinder (9).

3. The humidity control device for coking coal according to claim 2, characterized in that: The top feed bin (12), the sealing bin (8) and both sides of the bottom feed bin (5) are respectively arranged on the support (1) via mounting brackets (3).

4. The humidity control device for coking coal fed into a furnace according to claim 2, characterized in that: The burner (7) is arranged at the top of one end of the sealed chamber (8) away from the drying cylinder (9), and the flame nozzle (21) of the burner (7) extends into the bottom of the drying cylinder (9); The flamethrower (21) is located above the inner space of the drying cylinder (9), and a flame shield (22) is provided below the flamethrower (21). The flame shield (22) is located above the material guide channel (23), and the flame shield (22) is connected to the sealing chamber (8).

5. The humidity control device for coking coal fed into a furnace according to claim 4, characterized in that: The air inlet of the burner (7) is connected to the outlet of the air inlet fan (6) through a pipeline, and the inlet of the air inlet fan (6) is connected to the bottom feed bin (5) through a pipeline.

6. The humidity control device for coking coal fed into a furnace according to claim 5, characterized in that: One end of the top of the top feed bin (12) close to the drying cylinder (9) is connected to the second exhaust fan (25) through a pipeline.

7. The humidity control device for coking coal fed into a furnace according to claim 1, characterized in that: The exhaust device comprises a first exhaust fan (2), and the inlet of the first exhaust fan (2) is connected to the top position of the bottom feed bin (5) through a pipeline.

8. The humidity control device for coking coal fed into a furnace according to claim 7, characterized in that: An impeller discharger (26) is installed on the material guide channel (23) between the bottom feed bin (5) and the sealing bin (8).

9. The humidity control device for coking coal fed into a furnace according to any one of claims 1 to 7, characterized in that: At least two symmetrically arranged support rings (11) are coaxially mounted on the surfaces of the cooling cylinder (4) and the drying cylinder (9), and both sides of each support ring (11) are respectively placed in the support groove wheel (14), and both ends of the support groove wheel (14) are rotatably mounted in the second bearing seat (18), and the second bearing seat (18) is set on the support (1); There is at least one driving device on each cooling cylinder (4) and drying cylinder (9), and the driving devices each include a transmission gear ring (10), which is coaxially mounted on the cooling cylinder (4) and the drying cylinder (9), respectively. Both sides of each transmission gear ring (10) are meshed with a driving gear (15), and both ends of the driving gear (15) are rotatably connected to a first bearing seat (17), and the first bearing seat (17) is arranged on the support (1); A reducer (16) is provided on one side of each transmission gear ring (10), an output shaft of the reducer (16) is connected to one end of the driving gear (15), and an input end of the reducer (16) is connected to the driving motor (19).

10. The humidity control device for coking coal fed into a furnace according to claim 9, characterized in that: A plurality of blades (20) are respectively provided on the inner surfaces of the cooling cylinder (4) and the drying cylinder (9).

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