A calcining kiln for small-diameter coal gangue ceramsite

Abstract

This utility model relates to the field of calcination kiln technology and discloses a calcination kiln for small-diameter coal gangue ceramsite. The kiln includes a calcination kiln with a rotary kiln on one side. An exhaust pipe is installed on the top of the kiln, and a processing mechanism is also installed on the top. The processing mechanism includes a processing box, a partition, a water tank, a water pump, a connecting pipe, a rotating drum, a stirring rod, and a drain outlet. The processing box is connected to the top of the kiln, the partition is located inside the processing box, the water tank is located at the back of the kiln, the water pump is installed on top of the water tank, and the pump's input end is connected to the water tank. One end of the connecting pipe is connected to the pump's output end. This utility model uses activated carbon in the adsorption mechanism to adsorb heavy metals, organic pollutants, and other impurities, which then enter the processing mechanism and mix with an alkaline solution. The mixture is then rotated by the stirring rod, achieving dual purification of desulfurization and dust removal.

Description

Technical Field

[0001] This utility model relates to the field of calcining kiln technology, specifically a calcining kiln for small-diameter coal gangue ceramsite. Background Technology

[0002] With the continuous development of coal production, the output of coal gangue is increasing daily. Large amounts of coal mine waste not only occupy land resources but also cause serious environmental pollution. Therefore, it is necessary to properly treat and utilize coal gangue. One method is to produce high-strength building material ceramsite by firing coal gangue in a rotary kiln. This involves grinding coal gangue into particles of about 10 mm and then feeding them into a rotary kiln for high-temperature firing.

[0003] According to Chinese Patent Publication No. CN115773659B, a calcining kiln for small-diameter coal gangue ceramsite includes a calcining bin. A heating element is detachably connected to one end of the top of the calcining bin, with one end of the heating element inserted into the calcining bin. A preheating rotary kiln is rotatably connected to the top of the calcining bin away from the heating element. A first support member is placed at the bottom of the calcining bin, and multiple fans are placed on both sides of the bottom of the calcining bin, with the fans positioned on top of the first support member. This disclosure uses a preheating rotary kiln to dry small-diameter coal gangue ceramsite raw material. After small-diameter coal gangue ceramsite raw material enters the calcination chamber, it can be suspended by air generated by a blower, and the air speed is controlled by an air distribution plate to prevent the generated small-diameter coal gangue ceramsite from directly adhering to or accumulating at the bottom of the calcination chamber due to its own gravity, which would lead to uneven heating and agglomeration. When the above-mentioned patent is used, calcining gangue will produce flue gas. The patent does not treat the flue gas, which will affect the environment. Therefore, a gangue ceramsite calcination kiln is proposed to solve the above-mentioned problems. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a calcining kiln for small-particle-size coal gangue ceramsite, which addresses the shortcomings of the prior art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a calcining kiln for small-diameter coal gangue ceramsite, including a calcining kiln, a rotary kiln provided on one side of the calcining kiln, an exhaust pipe provided on the top of the calcining kiln, and a processing mechanism provided on the top of the calcining kiln.

[0006] The processing mechanism includes a processing box, a partition, a water tank, a water pump, a connecting pipe, a rotating drum, a stirring rod, and a drain outlet. The processing box is connected to the top of the calcining kiln, and the partition is located inside the processing box.

[0007] The water tank is located at the back of the calcining kiln, the water pump is installed on the top of the water tank and the input end of the water pump is connected to the water tank, one end of the connecting pipe is connected to the output end of the water pump, the rotating drum rotates through the top of the processing tank and the top of the rotating drum is connected to the other end of the connecting pipe through a rotary joint, the stirring rod is connected to the outer wall of the rotating drum, and the drain outlet is opened on the stirring rod.

[0008] Preferably, there are two partitions, which are respectively disposed on both sides of the rotating drum.

[0009] Preferably, a first motor is installed on the top of the processing box, and a rotating rod is fixedly connected to the output end of the first motor. The rotating rod is connected to the rotating drum through a gear set. A discharge pipe is provided on one side of the processing box.

[0010] Preferably, the top of the calcining kiln is provided with an adsorption mechanism, which includes a conveying cylinder, a second motor, an auger, a first screen plate, and a second screen plate. The bottom of the conveying cylinder is connected to the top of the exhaust pipe, and one end of the conveying cylinder is connected to the processing box. The second motor is installed on the conveying cylinder. One end of the auger passes through the inner wall of the conveying cylinder and is fixedly connected to the output end of the second motor. The first screen plate is installed at the connection between the exhaust pipe and the conveying cylinder, and the second screen plate is installed on the inner wall of the conveying cylinder.

[0011] Preferably, a placement box is connected to the top of the conveying cylinder, and a discharge pipe is connected to the bottom of the conveying cylinder, with a control valve installed on the discharge pipe.

[0012] Preferably, the top of the calcining kiln is provided with a support rod, and the support rod is fixedly connected to the bottom of the conveying cylinder.

[0013] The present invention adopts the above technical solution, which can bring the following beneficial effects:

[0014] 1. This small-particle-size coal gangue ceramsite calcination kiln uses activated carbon in the adsorption mechanism to adsorb impurities such as heavy metals and organic pollutants, which are then mixed with an alkaline solution in the treatment mechanism. The mixture is then rotated by a stirring rod to achieve dual purification of desulfurization and dust removal.

[0015] 2. This type of small-diameter coal gangue ceramsite calcination kiln has a storage box for storing spare activated carbon. When the activated carbon in the conveying cylinder is saturated, the control valve of the feed pipe is opened, and the auger rotates to discharge the saturated activated carbon. At the same time, new activated carbon is automatically filled, without the need to stop the machine for disassembly. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the back of the present invention;

[0018] Figure 3 This is a diagram illustrating the processing mechanism of this utility model;

[0019] Figure 4 This is a diagram illustrating the adsorption mechanism of this utility model.

[0020] In the diagram: 1. Calcination kiln; 2. Rotary kiln; 3. Exhaust pipe; 4. Processing mechanism; 41. Processing box; 42. Baffle plate; 43. Water tank; 44. Water pump; 45. Connecting pipe; 46. Rotary drum; 47. Stirring rod; 48. Drain outlet; 49. First motor; 410. Rotating rod; 411. Discharge pipe; 5. Adsorption mechanism; 51. Conveying cylinder; 52. Second motor; 53. Screwdriver; 54. First screen plate; 55. Second screen plate; 56. Placement box; 57. Feeding pipe. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4One embodiment of this utility model is: a calcining kiln for small-diameter coal gangue ceramsite, comprising a calcining kiln 1, a rotary kiln 2 disposed on one side of the calcining kiln 1, an exhaust pipe 3 disposed on the top of the calcining kiln 1, and a processing mechanism 4 disposed on the top of the calcining kiln 1. The processing mechanism 4 includes a processing box 41, a partition 42, a water tank 43, a water pump 44, a connecting pipe 45, a rotating drum 46, a stirring rod 47, and a drain outlet 48. The processing box 41 is connected to the top of the calcining kiln 1, the partition 42 is disposed inside the processing box 41, and the water tank 43 is disposed in the calcining kiln. On the back of tank 41, a water pump 44 is installed on top of a water tank 43, with its input end connected to the water tank 43. One end of a connecting pipe 45 is connected to the output end of the water pump 44. A rotating drum 46 rotates through the top of the treatment tank 41, and its top is connected to the other end of the connecting pipe 45 via a rotary joint. A stirring rod 47 is connected to the outer wall of the rotating drum 46. A drain outlet 48 is located on the stirring rod 47. There are two partitions 42, which are respectively located on both sides of the rotating drum 46. A first motor 49 is installed on the top of the calcining kiln 1. A rotating rod 410 is fixedly connected to the output end of the first motor 49, and the rotating rod 410 is connected to the rotating drum 46 through a gear set. A discharge pipe 411 is connected to one side of the processing box 41. An adsorption mechanism 5 is installed on the top of the calcining kiln 1. The adsorption mechanism 5 includes a conveying cylinder 51, a second motor 52, an auger 53, a first screen plate 54, and a second screen plate 55. The bottom of the conveying cylinder 51 is connected to the top of the exhaust pipe 3, and one end of the conveying cylinder 51 is connected to the processing box 41. Motor 52 is installed on conveying cylinder 51. One end of auger 53 passes through the inner wall of conveying cylinder 51 and is fixedly connected to the output end of second motor 52. First mesh plate 54 is installed at the connection between exhaust pipe 3 and conveying cylinder 51. Second mesh plate 55 is installed on the inner wall of conveying cylinder 51. Placement box 56 is connected to the top of conveying cylinder 51. Feed pipe 57 is connected to the bottom of conveying cylinder 51 and a control valve is installed on feed pipe 57. Support rod is installed on the top of calcining kiln 1 and is fixedly connected to the bottom of conveying cylinder 51.

[0023] Working principle: Clean water is injected into the treatment tank 41, making the water level higher than the bottom of the partition 42. An alkaline solution is injected into the water tank 43. Activated carbon is poured into the placement box 56, and the activated carbon enters the conveying cylinder 51. The second motor 52 is started to drive the auger 53 to rotate, thereby conveying the activated carbon to the second mesh plate 55, thus filling the conveying cylinder 51 with activated carbon. The flue gas generated by the calcining kiln 1 enters the conveying cylinder 51 through the exhaust pipe 3. The activated carbon absorbs impurities in the flue gas and cools it down. The flue gas after impurity absorption enters the treatment tank 41. The water pump 44 is started to fill the water tank 43. The alkaline solution enters the rotating drum 46 through the connecting pipe 45, and then is discharged into the treatment tank 41 through the drain port 48 on the stirring rod 47. The first motor 49 is started to drive the rotating rod 410 to rotate, which in turn drives the rotating drum 46 to rotate through the gear set, and then drives the stirring rod 47 to rotate, mixing the clean water and alkaline solution in the treatment tank 41, thereby desulfurizing the flue gas. The desulfurized flue gas is discharged through the discharge pipe 411. When the activated carbon is saturated, the control valve is opened to start the second motor 52 to drive the auger 53 to rotate, and the saturated activated carbon is discharged through the feed pipe 57, while the new activated carbon stored in the placement box 56 enters the conveying cylinder 51.

[0024] It is worth noting that, for ease of control, the control panel 15 in the above embodiment is equipped with a heater control switch and a cylinder control switch. The heater control switch can control the heater, and the cylinder control switch can control the cylinder to work. These are all existing technologies and are not the main innovations, so they will not be described in detail here.

[0025] This utility model provides a calcining kiln for small-diameter coal gangue ceramsite. There are many methods and approaches to implement this technical solution; the above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. All components not explicitly stated in this embodiment can be implemented using existing technology.

Claims

1. A calcining kiln for small-diameter coal gangue ceramsite, comprising a calcining kiln (1), characterized in that: A rotary kiln (2) is provided on one side of the calcining kiln (1), an exhaust pipe (3) is provided on the top of the calcining kiln (1), and a processing mechanism (4) is provided on the top of the calcining kiln (1). The processing mechanism (4) includes a processing box (41), a partition (42), a water tank (43), a water pump (44), a connecting pipe (45), a rotating drum (46), a stirring rod (47), and a drain outlet (48). The processing box (41) is connected to the top of the calcining kiln (1), and the partition (42) is located inside the processing box (41). The water tank (43) is located on the back of the calcining kiln (1). The water pump (44) is installed on the top of the water tank (43), and the input end of the water pump (44) is connected to the water tank (43). One end of the connecting pipe (45) is connected to the output end of the water pump (44). The rotating drum (46) rotates through the top of the processing box (41), and the top of the rotating drum (46) is connected to the other end of the connecting pipe (45) through a rotary joint. The stirring rod (47) is connected to the outer wall of the rotating drum (46), and the drain outlet (48) is opened on the stirring rod (47).

2. The calcining kiln for small-diameter coal gangue ceramsite according to claim 1, characterized in that: There are two partitions (42), and the two partitions (42) are respectively arranged on both sides of the rotating cylinder (46).

3. The calcining kiln for small-diameter coal gangue ceramsite according to claim 2, characterized in that: A first motor (49) is installed on the top of the processing box (41). A rotating rod (410) is fixedly connected to the output end of the first motor (49), and the rotating rod (410) is connected to the rotating drum (46) through a gear set. A discharge pipe (411) is connected to one side of the processing box (41).

4. The calcining kiln for small-diameter coal gangue ceramsite according to claim 3, characterized in that: The top of the calcining kiln (1) is provided with an adsorption mechanism (5). The adsorption mechanism (5) includes a conveying cylinder (51), a second motor (52), an auger (53), a first screen plate (54), and a second screen plate (55). The bottom of the conveying cylinder (51) is connected to the top of the exhaust pipe (3), and one end of the conveying cylinder (51) is connected to the processing box (41). The second motor (52) is installed on the conveying cylinder (51). One end of the auger (53) penetrates the inner wall of the conveying cylinder (51) and is fixedly connected to the output end of the second motor (52). The first screen plate (54) is installed at the connection between the exhaust pipe (3) and the conveying cylinder (51), and the second screen plate (55) is installed on the inner wall of the conveying cylinder (51).

5. A calcining kiln for small-diameter coal gangue ceramsite according to claim 4, characterized in that: The top of the conveying cylinder (51) is connected to a placement box (56), and the bottom of the conveying cylinder (51) is connected to a discharge pipe (57), and a control valve is provided on the discharge pipe (57).

6. A calcining kiln for small-diameter coal gangue ceramsite according to claim 5, characterized in that: The top of the calcining kiln (1) is provided with a support rod, and the support rod is fixedly connected to the bottom of the conveying cylinder (51).

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