Alternative fuel dehumidification device for cement kiln

Abstract

The invention discloses a cement kiln alternative fuel dehumidification device, and relates to the technical field of cement kiln alternative fuels. Dry hot air is blown into the drying box through the hot air blower, alternative fuel in the rotary drum is dried, meanwhile, the rotary drum rotates and is matched with the stirring piece to stir the alternative fuel, and therefore the alternative fuel is scattered, and the alternative fuel drying effect is further improved. And hot air is conveniently conveyed into the inserting groove through the air guide pipe by means of the hot air blower, and then the hot air in the inserting groove passes through the air spraying holes, so that airflow in the stirring piece is sprayed into the rotary drum through the air spraying holes, and therefore the alternative fuel in the middle of the rotary drum is dried.

Description

Technical Field

[0001] The present invention relates to the technical field of alternative fuels for cement kilns, and particularly to a dehumidification device for alternative fuels of cement kilns. Background Art

[0002] In China's cement industry, coal is the main fuel, and about 35% of carbon emissions in the production process come from fuel combustion. Using low-carbon fuels to replace fossil fuels is an important technical path for cement carbon emission reduction. At present, alternative fuels in China are generally in rough processing, with low pretreatment quality, large fluctuations in calorific value and unstable composition of alternative fuels, and it has a certain impact on the operation of cement clinker production lines. China has great potential for biomass fuel carbon. Biomass alternative fuels that can be used in the cement industry include straw, wood processing waste, animal husbandry (forage, manure), municipal sludge, waste paper, waste leather, etc. Compared with coal, biomass fuels have the characteristics of high moisture content, high volatile matter and low fixed carbon, and produce a large amount of flue gas.

[0003] When a conventional dehumidification device is in use, biomass fuels are stored through a mesh sieve barrel, and the alternative fuels are dehumidified by the cooperation of a blower and a heating pipe. However, the biomass fuels in the middle of the mesh sieve barrel and outside it are unevenly heated, resulting in poor drying effect. Summary of the Invention

[0004] In order to solve the problem of poor drying effect of alternative fuels, the present invention provides a dehumidification device for alternative fuels of cement kilns.

[0005] The present invention provides a dehumidification device for alternative fuels of cement kilns, adopting the following technical scheme: A dehumidification device for alternative fuels of cement kilns includes a drying box, a rotating cylinder is rotatably arranged in the drying box, a feed port is arranged on the outer wall of the rotating cylinder, an adjustable plugging plate is arranged in the feed port, a stirring member is rotatably arranged on the inner wall of the rotating cylinder, one end of the stirring member passes through the rotating cylinder and is rotatably connected to the inner side wall of the drying box, a guiding ring is fixedly arranged at one end of the rotating cylinder, a movable member is movably inserted into the outer wall of the drying box, one end of the movable member is inserted into the drying box and is slidably matched with the outer wall of the guiding ring, the other end of the movable member is inserted into the stirring member and a guiding block is fixedly arranged, and the guiding block is slidably matched with the inner wall of the stirring member, a hot air blower is fixedly arranged on the outer wall of the drying box, and the air outlet end of the hot air blower is communicated with the drying box.

[0006] Through the above technical scheme, it is convenient to put alternative fuels into the rotating cylinder through the feed port, and then the guiding ring is driven to rotate synchronously as the rotating cylinder rotates. As the guiding ring rotates, the movable member drives the guiding block to move in the stirring member, so as to drive the stirring member to rotate, and the rotation direction of the stirring member is opposite to that of the rotating cylinder. At the same time, the hot air blower blows dry hot air into the drying box and dries the alternative fuels in the rotating cylinder.

[0007] Optionally, in the above-mentioned cement kiln alternative fuel dehumidification device, a motor is fixedly arranged on the outer wall of the drying box, and the rotating shaft of the motor passes through the drying box and is fixedly connected to the rotating cylinder.

[0008] Through the above technical solution, it is convenient to drive the rotating cylinder to rotate through the motor, and as the rotating cylinder rotates, the alternative fuel inside it can be evenly heated and dried.

[0009] Optionally, in the above-mentioned cement kiln alternative fuel dehumidification device, a feed pipe is fixedly inserted into the top surface of the drying box, a cover plate is hinged to the top of the feed pipe, the position of the feed pipe corresponds to the position of the feed port, a discharge port is fixedly arranged at the bottom of the drying box, and a sealing plate is arranged in the discharge hopper.

[0010] Through the above technical solution, the alternative fuel can fall into the rotating cylinder through the feed port through the feed pipe, so as to realize the filling of the alternative fuel, and it is convenient to seal the feed pipe through the cover plate, it is convenient to discharge the dried alternative fuel discharged from the rotating cylinder through the discharge hopper, and it is convenient to control the opening and closing of the discharge hopper through the sealing plate.

[0011] Optionally, in the above-mentioned cement kiln alternative fuel dehumidification device, the adjustable plugging plate includes two electric push rods and a baffle plate. The two electric push rods are fixedly arranged on the inner wall of the rotating cylinder, the extending end of the electric push rod is fixedly connected to the inner side of the baffle plate, and the baffle plate is movably inserted into the feed port.

[0012] Through the above technical solution, it is convenient to plug the feed port when the baffle plate is inserted into the feed port, and it prompts the feed port to open when the baffle plate is separated from the feed port.

[0013] Optionally, in the above-mentioned cement kiln alternative fuel dehumidification device, a slot is opened inside the stirring member, a spiral groove is opened on the inner wall of the slot, the guiding block is slidably matched with the inner wall of the spiral groove, and a plurality of stirring rods are arranged on the outer wall of the stirring member.

[0014] Through the above technical solution, the movable member can move inside the stirring member through the slot. As the movable member moves, it is convenient to drive the guiding block to move synchronously. At this time, the guiding block slides in cooperation with the inner wall of the spiral groove, so as to prompt the stirring member to rotate.

[0015] Optionally, in the above-mentioned cement kiln alternative fuel dehumidification device, a plurality of air spray holes are opened on the outer wall of the stirring member, a filter screen is arranged in the air spray holes, and the air spray holes are communicated with the slot.

[0016] Through the above technical solution, the possibility of the alternative fuel entering the slot is reduced through the filter screen.

[0017] Optionally, in the above-mentioned cement kiln alternative fuel dehumidification device, one end of the stirring member extending out of the rotating drum is fixedly sleeved with a bearing, and the bearing is fixedly arranged on the inner wall of the drying box.

[0018] Through the above technical solution, the stirring member is conveniently connected to the side wall of the drying box through the bearing, and the stirring member is enabled to rotate.

[0019] Optionally, in the above-mentioned cement kiln alternative fuel dehumidification device, the movable part includes a guide rod, a connecting plate and an insertion rod, one end of the connecting plate is fixedly connected to the end of the guide rod extending out of the drying box, the end of the guide rod inserted into the drying box is slidingly matched with the outer wall of the guide ring, the other end of the connecting plate is fixedly connected to the end of the insertion rod away from the drying box, the other end of the insertion rod passes through the drying box and is inserted into the slot, and the connecting plate is connected to the outer wall of the drying box by setting a spring.

[0020] Through the above technical solution, when the rotating drum drives the guide ring to rotate, the guide rod slides along the outer wall of the guide ring. At this time, the connecting plate and the insertion rod are driven to reciprocate through the guide rod. As the insertion rod moves, it is easy to drive the guide block to move synchronously, thereby driving the stirring element to rotate through the guide block.

[0021] Optionally, in the above-mentioned cement kiln alternative fuel dehumidification device, an air guide groove is opened in the plug rod, the air guide groove is connected to the slot, and the air guide groove inside the plug rod is connected to the hot air blower by setting an air guide pipe.

[0022] Through the above technical solution, the hot air can be easily transported to the slot through the air duct by the hot air blower, and then the hot air in the slot passes through the jet hole so that the airflow in the stirring element can be sprayed into the drum through the jet hole.

[0023] Optionally, in the above-mentioned cement kiln alternative fuel dehumidification device, one end of the guide ring is fixedly connected to the rotating drum, the other end of the guide ring is chamfered, and the outer wall of the rotating drum is provided with a plurality of through holes.

[0024] Through the above technical solution, the guide ring is cut at an angle so that when the belt rotates, the guide rod drives the connecting plate and the insertion rod to reciprocate, and the hot air in the drying box can enter the rotating drum through the through hole.

[0025] In summary, the present invention includes at least one of the following beneficial effects: The hot air blower blows dry hot air into the drying box to dry the alternative fuel in the drum. At the same time, the drum rotates and the stirring element stirs the alternative fuel to break it up, so that the alternative fuel is dried better. The hot air blower facilitates the delivery of hot air through the air duct to the slot. Subsequently, the hot air in the slot passes through the air injection holes, enabling the air flow in the stirring member to be ejected into the rotating drum through the air injection holes, thereby drying the alternative fuel in the middle of the rotating drum. Description of the Drawings

[0026] Figure 1 is a three-dimensional structural schematic diagram of the present invention; Figure 2 is a partial three-dimensional structural sectional view of the present invention; Figure 3 is a partial three-dimensional unfolded structural sectional view of the present invention; Figure 4 is a partial three-dimensional structural sectional view of the stirring member of the present invention.

[0027] In the figure: 1, drying box; 11, feed pipe; 12, cover plate; 13, discharge hopper; 14, sealing plate; 2, rotating drum; 21, motor; 22, through hole; 3, feed port; 4, adjustable plugging plate; 41, electric push rod; 42, baffle; 5, stirring member; 51, slot; 52, spiral groove; 53, stirring rod; 54, air injection hole; 55, bearing; 6, guide ring; 7, movable member; 71, guide rod; 72, connecting plate; 73, inserting rod; 74, spring; 75, air guide groove; 8, guide block; 9, hot air blower; 91, air duct. Detailed Description of the Invention

[0028] The following is a further detailed description of the present invention in conjunction with the attached Figures 1-4 drawings.

[0029] Please refer to the drawings in the specification Figures 1-4 , an embodiment provided by the present invention: a dehumidification device for alternative fuels in a cement kiln, including a drying box 1, a rotating drum 2 is rotatably arranged in the drying box 1, an outer wall of the drying box 1 is fixedly provided with a motor 21, a rotating shaft of the motor 21 passes through the drying box 1 and is fixedly connected to the rotating drum 2, and the motor 21 facilitates driving the rotating drum 2 to rotate, and as the rotating drum 2 rotates, the alternative fuel inside it can be evenly heated and dried.

[0030] An inlet port 3 is formed in an outer wall of the rotating drum 2, a feed pipe 11 is fixedly inserted into a top surface of the drying box 1, a cover plate 12 is hinged to a top of the feed pipe 11, positions of the feed pipe 11 and the inlet port 3 correspond to each other, a discharge hopper 13 is fixedly arranged at a bottom of the drying box 1, a sealing plate 14 is arranged in the discharge hopper 13, the alternative fuel can fall into the rotating drum 2 through the inlet port 3 through the feed pipe 11, thereby realizing filling of the alternative fuel, the cover plate 12 facilitates sealing the feed pipe 11, the discharge hopper 13 facilitates discharging the dried alternative fuel discharged from the rotating drum 2, and the sealing plate 14 facilitates controlling opening and closing of the discharge hopper 13.

[0031] An adjustable plugging plate 4 is arranged in the feed inlet 3. The adjustable plugging plate 4 includes two electric push rods 41 and a baffle plate 42. The two electric push rods 41 are fixedly arranged on the inner wall of the rotary drum 2. The extending end of the electric push rod 41 is fixedly connected to the inner side of the baffle plate 42. The baffle plate 42 is movably inserted into the feed inlet 3. By the cooperation of the two electric push rods 41, it is convenient to control the movement of the baffle plate 42. When the baffle plate 42 is inserted into the feed inlet 3, it is convenient to plug the feed inlet 3. When the baffle plate 42 is separated from the feed inlet 3, the feed inlet 3 is urged to open. At this time, it is convenient to deliver the alternative fuel into the rotary drum 2.

[0032] A stirring member 5 is rotatably arranged on the inner wall of the rotary drum 2. One end of the stirring member 5 passes through the rotary drum 2 and is rotatably connected to the inner side wall of the drying box 1. A guiding ring 6 is fixedly arranged at one end of the rotary drum 2. A movable member 7 is movably inserted into the outer wall of the drying box 1. One end of the movable member 7 is inserted into the drying box 1 and is slidably matched with the outer wall of the guiding ring 6. The other end of the movable member 7 is inserted into the stirring member 5 and a guiding block 8 is fixedly arranged. The guiding block 8 is slidably matched with the inner wall of the stirring member 5. A slot 51 is formed inside the stirring member 5. A spiral groove 52 is formed on the inner wall of the slot 51. The guiding block 8 is slidably matched with the inner wall of the spiral groove 52. A plurality of stirring rods 53 are arranged on the outer wall of the stirring member 5. Through the slot 51, the movable member 7 can move inside the stirring member 5. As the movable member 7 moves, it is convenient to drive the guiding block 8 to move synchronously. At this time, the guiding block 8 slides along the inner wall of the spiral groove 52, so as to cause the stirring member 5 to rotate. As the stirring member 5 rotates, the stirring rods 53 are driven to rotate, so as to break up the alternative fuel, and further improve the drying effect of the alternative fuel.

[0033] A plurality of air jet holes 54 are formed on the outer wall of the stirring member 5. A filter screen is arranged in the air jet holes 54. The air jet holes 54 are communicated with the slot 51. Through the air jet holes 54, the air flow inside the stirring member 5 can be sprayed into the rotary drum 2 through the air jet holes 54, so as to dry the alternative fuel in the middle of the rotary drum 2, and the filter screen reduces the possibility of the alternative fuel entering the slot 51.

[0034] A bearing 55 is fixedly sleeved at one end of the stirring member 5 extending out of the rotary drum 2. The bearing 55 is fixedly arranged on the inner side wall of the drying box 1. Through the bearing 55, it is convenient to connect the stirring member 5 with the side wall of the drying box 1 and cause the stirring member 5 to rotate. As the stirring member 5 rotates, it is convenient to break up the alternative fuel.

[0035] The movable member 7 includes a guide rod 71, a connecting plate 72 and a plug rod 73. One end of the connecting plate 72 is fixedly connected to the end of the guide rod 71 extending out of the drying oven 1. The end of the guide rod 71 inserted into the drying oven 1 is in sliding fit with the outer wall of the guide ring 6. The other end of the connecting plate 72 is fixedly connected to the end of the plug rod 73 away from the drying oven 1. The other end of the plug rod 73 passes through the drying oven 1 and is inserted into the slot 51. The connecting plate 72 is connected to the outer wall of the drying oven 1 by a spring 74 arranged thereon. The spring 74 facilitates pulling the connecting plate 72 to move, thereby causing the guide rod 71 to abut against the outer wall of the guide ring 6. When the rotating drum 2 drives the guide ring 6 to rotate, the guide rod 71 slides along the outer wall of the guide ring 6. At this time, the guide rod 71 drives the connecting plate 72 and the plug rod 73 to make reciprocating motions. As the plug rod 73 moves, it facilitates driving the guide block 8 to move synchronously, thereby driving the stirring member 5 to rotate through the guide block 8.

[0036] A hot air blower 9 is fixedly arranged on the outer wall of the drying oven 1. The air outlet end of the hot air blower 9 is communicated with the drying oven 1. An air guide groove 75 is formed in the plug rod 73, and the air guide groove 75 is communicated with the slot 51. The air guide groove 75 inside the plug rod 73 is communicated with the hot air blower 9 through an air guide pipe 91 arranged thereon. The hot air blower 9 facilitates conveying hot air into the slot 51 through the air guide pipe 91. Then, the hot air in the slot 51 enables the air flow in the stirring member 5 to be ejected into the rotating drum 2 through the air ejection holes 54, thereby drying the alternative fuel in the middle of the rotating drum 2.

[0037] One end of the guide ring 6 is fixedly connected to the rotating drum 2, and the other end of the guide ring 6 is chamfered. A plurality of through holes 22 are formed in the outer wall of the rotating drum 2. The chamfering of the guide ring 6 causes the guide rod 71 to drive the connecting plate 72 and the plug rod 73 to make reciprocating motions when rotating. The through holes 22 enable the hot air in the drying oven 1 to enter the rotating drum 2, thereby drying the alternative fuel in the rotating drum 2.

[0038] Working principle: When using this dehumidifying device for alternative fuel in a cement kiln, the alternative fuel is conveniently put into the rotating drum 2 through the feed inlet 3. Then, the rotating drum 2 rotates to drive the guide ring 6 to rotate synchronously. As the guide ring 6 rotates, the movable member 7 drives the guide block 8 to move in the stirring member 5, thereby causing the stirring member 5 to rotate. And the rotating direction of the stirring member 5 is opposite to that of the rotating drum 2. At the same time, the hot air blower 9 blows the dry hot air into the drying oven 1 and dries the alternative fuel in the rotating drum 2. At the same time, the rotating drum 2 rotates and cooperates with the stirring member 5 to stir the alternative fuel, thereby dispersing and drying the alternative fuel.

[0039] The above are all the preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby. Therefore, all equivalent changes made according to the structure, shape and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A dehumidification device for alternative fuels in a cement kiln, comprising a drying box (1), characterized in that: A rotary drum (2) is rotatably arranged inside the drying oven (1). A feed inlet (3) is formed in the outer wall of the rotary drum (2). An adjustable plugging plate (4) is arranged in the feed inlet (3). A stirring member (5) is rotatably arranged on the inner wall of the rotary drum (2). One end of the stirring member (5) passes through the rotary drum (2) and is rotatably connected to the inner side wall of the drying oven (1). A guiding ring (6) is fixedly arranged at one end of the rotary drum (2). A movable member (7) is movably inserted into the outer wall of the drying oven (1). One end of the movable member (7) is inserted into the drying oven (1) and is slidably matched with the outer wall of the guiding ring (6). The other end of the movable member (7) is inserted into the stirring member (5) and a guiding block (8) is fixedly arranged. The guiding block (8) is slidably matched with the inner wall of the stirring member (5). A hot air blower (9) is fixedly arranged on the outer wall of the drying oven (1). The air outlet end of the hot air blower (9) is communicated with the drying oven (1).

2. The cement kiln alternative fuel dehumidification device according to claim 1, characterized in that: A motor (21) is fixedly arranged on the outer wall of the drying oven (1). The rotating shaft of the motor (21) passes through the drying oven (1) and is fixedly connected to the rotary drum (2).

3. The cement kiln alternative fuel dehumidification device according to claim 1, characterized in that: A feed pipe (11) is fixedly inserted into the top surface of the drying oven (1). A cover plate (12) is hinged to the top of the feed pipe (11). The position of the feed pipe (11) corresponds to the position of the feed inlet (3). A discharge hopper (13) is fixedly arranged at the bottom of the drying oven (1). A sealing plate (14) is arranged in the discharge hopper (13).

4. The cement kiln alternative fuel dehumidification device according to claim 1, characterized in that: The adjustable plugging plate (4) includes two electric push rods (41) and a baffle plate (42). The two electric push rods (41) are fixedly arranged on the inner wall of the rotary drum (2). The extending end of the electric push rod (41) is fixedly connected to the inner side of the baffle plate (42). The baffle plate (42) is movably inserted into the feed inlet (3).

5. The cement kiln alternative fuel dehumidification device according to claim 1, characterized in that: A slot (51) is formed inside the stirring member (5). A spiral groove (52) is formed in the inner wall of the slot (51). The guiding block (8) is slidably matched with the inner wall of the spiral groove (52). A plurality of stirring rods (53) are arranged on the outer wall of the stirring member (5).

6. The cement kiln alternative fuel dehumidification device according to claim 5, characterized in that: A plurality of air spraying holes (54) are formed in the outer wall of the stirring member (5). A filter screen is arranged in the air spraying holes (54). The air spraying holes (54) are communicated with the slot (51).

7. The cement kiln alternative fuel dehumidification device according to claim 1, characterized in that: A bearing (55) is fixedly sleeved at the end of the stirring member (5) extending out of the rotary drum (2). The bearing (55) is fixedly arranged on the inner side wall of the drying oven (1).

8. The cement kiln alternative fuel dehumidification device according to claim 1, characterized in that: The movable member (7) includes a guiding rod (71), a connecting plate (72) and an inserting rod (73). One end of the connecting plate (72) is fixedly connected to the end of the guiding rod (71) extending out of the drying oven (1). The end of the guiding rod (71) inserted into the drying oven (1) is slidably matched with the outer wall of the guiding ring (6). The other end of the connecting plate (72) is fixedly connected to the end of the inserting rod (73) away from the drying oven (1). The other end of the inserting rod (73) passes through the drying oven (1) and is inserted into the slot (51). The connecting plate (72) is connected to the outer wall of the drying oven (1) by a spring (74).

9. The cement kiln alternative fuel dehumidification device according to claim 8, characterized in that: An air guide groove (75) is formed in the insertion rod (73), the air guide groove (75) communicates with the insertion slot (51), and the air guide groove (75) inside the insertion rod (73) communicates with the hot air blower (9) through an air guide pipe (91) provided.

10. The cement kiln alternative fuel dehumidification device according to claim 1, characterized in that: One end of the guiding ring (6) is fixedly connected to the rotary cylinder (2), the other end of the guiding ring (6) is chamfered, and a plurality of through holes (22) are formed in the outer wall of the rotary cylinder (2).

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