Industrial waste residue calcining equipment

Abstract

The utility model discloses an industrial waste residue calcining equipment relates to industrial waste residue calcining technical field, including rotary kiln, one side of rotary kiln is provided with discharge bin, the outer wall of rotary kiln is provided with the engagement assembly, and the flange of discharge bin one side is connected with preheating assembly, preheating assembly includes gas pipe, and the gas pipe is fixed in one side of discharge bin. This industrial waste residue calcining equipment sets up discharge bin and recycles waste residue waste heat, utilizes gas pipe to convey hot air and mixed material to cyclone and carries out high -speed rotation heating, realizes the deep coupling of waste residue waste heat and raw material calcining process, and the gas -solid separation design in cyclone makes the clinker high -efficiently fall into the storage barrel, and the circulating system driven by fan retransmits the clinker to rotary kiln, forms heat and material double -circulation system, and this scheme not only has improved energy utilization, reduced energy consumption, but also has optimized material ripening quality through continuous circulating calcining, and has improved overall process efficiency significantly.

Description

Technical Field

[0001] This utility model relates to the field of industrial waste calcination technology, specifically to an industrial waste calcination device. Background Technology

[0002] Industrial waste calcination equipment is mainly used for high-temperature treatment of industrial waste. Through reactions such as pyrolysis and calcination, the waste is transformed into valuable resources or harmless substances. There are various types of equipment, such as rotary kilns and vertical kilns, which adopt multiple heating methods such as electric heating and gas heating. The temperature range can reach 100-1900℃, which is adjustable and precisely controlled. Its core advantages are high processing efficiency and strong adaptability. It can process organic waste, inorganic waste and hazardous waste. The equipment has an automated control system that monitors and adjusts parameters in real time to ensure stable operation. At the same time, it focuses on environmental protection and energy conservation, reduces exhaust emissions, and meets the requirements of sustainable development.

[0003] In existing industrial waste slag calcination equipment, there is a prominent problem of insufficient utilization of waste slag heat during operation. During calcination, a large amount of heat carried by the waste slag cannot be effectively recovered and reused. On the one hand, the equipment heat dissipation design is unreasonable, and heat from the high-temperature waste slag is lost to the surrounding environment through the equipment shell and other means during calcination and subsequent processing. On the other hand, there is a lack of efficient waste heat recovery systems. The waste heat carried by the high-temperature flue gas generated after waste slag calcination cannot be effectively collected and used for preheating raw materials, heating, or other production or living processes, resulting in serious energy waste, increased production costs, and failure to meet the requirements of sustainable development for energy conservation and emission reduction. Therefore, we need an industrial waste slag calcination equipment. Utility Model Content

[0004] The purpose of this invention is to provide an industrial waste slag calcination device to solve the problem of insufficient utilization of heat from existing waste slag as mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an industrial waste slag calcination device, including a rotary kiln, a discharge bin on one side of the rotary kiln, a locking assembly on the outer wall of the rotary kiln, a preheating assembly connected to a flange on one side of the discharge bin, the preheating assembly including an air supply pipe, the air supply pipe being fixed to one side of the discharge bin, a feeding bin on the outer wall of the air supply pipe, a cyclone separator connected to a flange at one end of the air supply pipe, a storage bin at the bottom of the cyclone separator, a blower on one side of the storage bin, and a conveying pipe connected to a flange on one side of the storage bin.

[0006] Preferably, the feeding bin is connected to the cyclone through an air supply pipe, and the feeding bin is located on the outer wall of the air supply pipe. One end of the air supply pipe is connected to the feed inlet of the cyclone.

[0007] Preferably, the cyclone is a gas-solid separation device that uses centrifugal force to rotate the dust-laden gas, and the material is thrown against the cylinder wall and falls under the action of inertia.

[0008] Preferably, the storage hopper is connected to the material conveying pipe via a blower to form a conveying structure, with one end of the material conveying pipe connected to the outlet of the storage hopper, and the blower located on one side of the storage hopper.

[0009] Preferably, the engaging assembly includes a connecting pipe, which is fixed to the outer wall of the rotary kiln. A movable frame is slidably connected to the outer wall of the connecting pipe. A spring is provided on one side of the movable frame. A fixing plate is fixedly connected to one end of the spring. A first flange is fixedly connected to one end of the connecting pipe. A first sealing gasket is provided on one side of the first flange. A sliding groove is formed inside the connecting pipe. A locking groove is formed inside the connecting pipe. A protrusion is engaged inside the locking groove. A second flange is fixedly connected to one side of the protrusion. A fixing block is fixedly connected to one side of the second flange. A second sealing gasket is provided on one side of the second flange. A temperature sensor is provided inside the second flange.

[0010] Preferably, the connecting pipe forms an engaging structure with the protrusion through a slot, and the protrusion extends into the slot and is rotated and fixed.

[0011] Preferably, the movable frame forms an elastic structure with a spring and a fixed plate, and the spring is disposed between the movable frame and the fixed plate.

[0012] Preferably, the first flange and the second flange form a sealing structure through a first sealing gasket and a second sealing gasket, and the first sealing gasket and the second sealing gasket are respectively disposed on one side of the first flange and the second flange.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] In the scheme of this application:

[0015] 1. To address the problem of insufficient heat utilization in existing technologies, this application recovers waste heat from waste residue by setting up a discharge silo and using a gas pipeline to transport hot air and mixed materials to a cyclone for high-speed rotational heating. This achieves deep coupling between waste heat and the raw material calcination process. The gas-solid separation design inside the cyclone allows clinker to fall efficiently into the storage bin. Combined with a fan-driven circulation system, the clinker is transported back to the rotary kiln, forming a dual circulation system of heat and materials. This solution not only improves energy utilization and reduces energy consumption, but also optimizes the material maturation quality through continuous circulation calcination, significantly improving the overall process efficiency.

[0016] 2. To address the problems in existing rotary kilns where the absence of a temperature sensor leads to the inability to obtain real-time furnace temperature data, difficulty in ensuring stable temperature control, and susceptibility to production quality issues caused by temperature anomalies, this application proposes a mating structure between a first flange and a second flange. This structure utilizes a protrusion and a slotted engagement mechanism, along with a sealing gasket, to achieve a good seal. A movable frame, spring, and fixed block are integrated; the spring stretches during engagement and springs back to bring the movable frame into contact with the second flange, enhancing installation stability. Bolts are used for fixing, allowing one end of the temperature sensor to be inserted into the rotary kiln via a connecting pipe for sampling and testing. This enables real-time and accurate monitoring of the furnace temperature, ensuring stable temperature control and maintaining production quality. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the preheating component structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the spring and the first flange structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the temperature sensor and the second flange structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the slide and slot structure of this utility model.

[0022] In the diagram: 1. Rotary kiln; 2. Discharge hopper; 3. Clamping assembly; 301. Connecting pipe; 302. Movable frame; 303. Spring; 304. Fixing plate; 305. First flange; 306. First sealing gasket; 307. Slide groove; 308. Slot; 309. Protrusion; 310. Second flange; 311. Fixing block; 312. Second sealing gasket; 313. Temperature sensor; 4. Preheating assembly; 401. Air supply pipe; 402. Feeding hopper; 403. Cyclone separator; 404. Storage hopper; 405. Fan; 406. Feeding pipe. Detailed Implementation

[0023] 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.

[0024] This utility model embodiment provides an industrial waste slag calcination device, such as... Figure 1 and Figure 2 As shown, the system includes a rotary kiln 1, a discharge bin 2 on one side of the rotary kiln 1, a locking assembly 3 on the outer wall of the rotary kiln 1, a preheating assembly 4 connected to a flange on one side of the discharge bin 2, the preheating assembly 4 including an air supply pipe 401, the air supply pipe 401 being fixed to one side of the discharge bin 2, a feeding bin 402 on the outer wall of the air supply pipe 401, a cyclone separator 403 connected to a flange at one end of the air supply pipe 401, a storage bin 404 at the bottom of the cyclone separator 403, a blower 405 on one side of the storage bin 404, and a conveying pipe 406 connected to a flange on one side of the storage bin 404. Rotary kiln 1 discharges waste slag into discharge bin 2. The waste slag dissipates heat in the bin, and the heat is discharged to the air supply pipe 401 through the exhaust device at the top of the discharge bin 2. After mixing the waste slag with raw materials, it is fed into the air supply pipe 401 through the feeding bin 402. Hot air blows it to the cyclone 403. The material is mixed at high speed in the cyclone, and the hot air gradually raises its temperature. After gas-solid separation, the calcined material falls into the storage bin 404. The blower 405 is started to generate airflow to drive the clinker in the storage bin 404 to be transported back to rotary kiln 1 through the conveying pipe 406 to complete the cyclic calcination and realize the efficient utilization of resources and continuous production.

[0025] Furthermore, such as Figure 2 As shown, the feeding bin 402 is connected to the cyclone 403 via the air supply pipe 401, and the feeding bin 402 is located on the outer wall of the air supply pipe 401. One end of the air supply pipe 401 is connected to the inlet of the cyclone 403. Through the air supply pipe 401, the material can be fed into the air supply pipe 401 through the feeding bin 402, and the gas transported by the air supply pipe 401 is blown into the cyclone 403.

[0026] Furthermore, such as Figure 2 As shown, the cyclone 403 is a gas-solid separation device that uses centrifugal force to rotate the dust-laden gas. The material is thrown against the cylinder wall and falls under the action of inertia, thereby making the material fully mixed.

[0027] Furthermore, such as Figure 2 As shown, the storage hopper 404 forms a conveying structure with the fan 405 and the conveying pipe 406. One end of the conveying pipe 406 is connected to the discharge port of the storage hopper 404. The fan 405 is set on one side of the storage hopper 404. The fan 405 can generate airflow to drive the clinker in the storage hopper 404 to be conveyed through the conveying pipe 406.

[0028] In a further preferred embodiment of this utility model, such as Figure 1 , Figure 3 , Figure 4 and Figure 5As shown, the engaging assembly 3 includes a connecting pipe 301, which is fixed to the outer wall of the rotary kiln 1. A movable frame 302 is slidably connected to the outer wall of the connecting pipe 301. A spring 303 is provided on one side of the movable frame 302, and a fixing plate 304 is fixedly connected to one end of the spring 303. A first flange 305 is fixedly connected to one end of the connecting pipe 301, and a first sealing gasket 306 is provided on one side of the first flange 305. A sliding groove 307 and a locking groove 308 are provided inside the connecting pipe 301. A protrusion 309 is engaged inside the locking groove 308. A second flange 310 is fixedly connected to one side of the protrusion 309, and a fixing block 311 is fixedly connected to one side of the second flange 310. A second sealing gasket 312 is provided on one side of the second flange 310, and a temperature sensor 313 is provided inside the second flange 310. The first flange 305 is connected to the second flange 310, and the protrusion 309 enters the slot 308 along the slide groove 307 to engage, so that the first sealing gasket 306 and the second sealing gasket 312 come into contact to achieve a seal. When engaged, the fixed block 311 pushes the movable frame 302, stretches the spring 303, and rotates to complete the engagement. The spring 303 rebounds, driving the movable frame 302 to pull back and fit against the second flange 310. Then, bolts are used to pass through the bolt holes of the two flanges and connect with nuts to complete the installation of the temperature sensor 313. After docking, one end of the sensor is inserted into the rotary kiln 1 to take a sample for testing to ensure the stability of the furnace temperature.

[0029] Furthermore, such as Figure 3 and Figure 5 As shown, the connecting pipe 301 forms a locking structure with the protrusion 309 through the slot 308, and the protrusion 309 extends into the slot 308 and is rotated and fixed. Through the provided protrusion 309, the protrusion 309 can be rotated and locked in the slot 308 by the connecting pipe 301.

[0030] Furthermore, such as Figure 3 As shown, the movable frame 302 forms an elastic structure with the fixed plate 304 via the spring 303, and the spring 303 is disposed between the movable frame 302 and the fixed plate 304. With the spring 303 disposed, the movable frame 302 can be stretched and rebounded under the support of the fixed plate 304.

[0031] Furthermore, such as Figure 4 As shown, the first flange 305 forms a sealing structure with the second flange 310 through the first sealing gasket 306 and the second sealing gasket 312. The first sealing gasket 306 and the second sealing gasket 312 are respectively disposed on one side of the first flange 305 and the second flange 310. Through the disposed first sealing gasket 306 and the second sealing gasket 312, the first flange 305 and the second flange 310 can be sealed to prevent waste leakage.

[0032] Working principle: By mating the first flange 305 with the second flange 310, during the mating process, the protrusion 309 can enter the slot 308 along the slide groove 307 for engagement, allowing the first sealing gasket 306 to contact the second sealing gasket 312, thus sealing the first flange 305 and the second flange 310. During engagement, the fixed block 311 pushes the movable frame 302, causing the movable frame 302 to stretch the spring 303. After the engagement is completed, the spring 303 rebounds, causing the movable frame 302 to pull back, allowing the movable frame 302 to fit against the second flange 310. Subsequently, bolts are used to connect the first flange 305 and the second flange 310 through the screw holes and nuts, thus completing the installation of the temperature sensor 313. After the mating is completed, one end of the temperature sensor 313 passes through... The second flange 310 is inserted into the rotary kiln 1 for sampling and testing to ensure stable temperature inside the furnace. Waste slag is discharged from the rotary kiln 1 into the discharge bin 2. The waste slag dissipates heat in the discharge bin 2 and is discharged into the gas conveying pipe 401 through the exhaust device at the top of the discharge bin 2. The waste slag is mixed with the raw material. The mixed material is fed into the feeding bin 402 and then into the gas conveying pipe 401. The gas conveying pipe 401 blows the material into the cyclone separator 403 by the hot air. The material rotates and mixes at high speed inside the cyclone separator 403. The hot air conveyed by the gas conveying pipe 401 gradually heats the material and then completes gas-solid separation, allowing the calcined material to fall into the storage bin 404. By starting the blower 405, the blower 405 generates airflow to drive the calcined material in the storage bin 404 through the conveying pipe 406 back into the rotary kiln 1 to complete the cyclic calcination.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An industrial waste slag calcination device, comprising a rotary kiln (1), characterized in that: A discharge bin (2) is provided on one side of the rotary kiln (1). A locking assembly (3) is provided on the outer wall of the rotary kiln (1). A preheating assembly (4) is connected to a flange on one side of the discharge bin (2). The preheating assembly (4) includes an air supply pipe (401), and the air supply pipe (401) is fixed on one side of the discharge bin (2). A feeding bin (402) is provided on the outer wall of the air supply pipe (401). A cyclone separator (403) is connected to a flange at one end of the air supply pipe (401). A storage bin (404) is provided at the bottom of the cyclone separator (403). A blower (405) is provided on one side of the storage bin (404). A conveying pipe (406) is connected to a flange on one side of the storage bin (404).

2. The industrial waste slag calcination equipment according to claim 1, characterized in that: The feeding bin (402) is connected to the cyclone (403) through the air supply pipe (401), and the feeding bin (402) is located on the outer wall of the air supply pipe (401). One end of the air supply pipe (401) is connected to the feed inlet of the cyclone (403).

3. The industrial waste slag calcination equipment according to claim 1, characterized in that: The cyclone (403) is a gas-solid separation device that uses centrifugal force to rotate the dust-laden gas, and the material is thrown against the cylinder wall and falls under the action of inertia.

4. The industrial waste slag calcination equipment according to claim 1, characterized in that: The storage hopper (404) is connected to the conveying pipe (406) by a blower (405), and one end of the conveying pipe (406) is connected to the outlet of the storage hopper (404), and the blower (405) is located on one side of the storage hopper (404).

5. The industrial waste slag calcination equipment according to claim 1, characterized in that: The locking assembly (3) includes a connecting pipe (301), which is fixed to the outer wall of the rotary kiln (1). A movable frame (302) is slidably connected to the outer wall of the connecting pipe (301). A spring (303) is provided on one side of the movable frame (302). A fixing plate (304) is fixedly connected to one end of the spring (303). A first flange (305) is fixedly connected to one end of the connecting pipe (301). A first sealing gasket (306) is provided on one side of the first flange (305). The connecting pipe (301) has a groove (307) inside, and a slot (308) is provided inside. A protrusion (309) is engaged inside the slot (308). A second flange (310) is fixedly connected to one side of the protrusion (309). A fixing block (311) is fixedly connected to one side of the second flange (310). A second sealing gasket (312) is provided on one side of the second flange (310). A temperature sensor (313) is provided inside the second flange (310).

6. The industrial waste slag calcination equipment according to claim 5, characterized in that: The connecting pipe (301) forms a locking structure with the protrusion (309) through the slot (308), and the protrusion (309) extends into the slot (308) and is rotated and fixed.

7. The industrial waste slag calcination equipment according to claim 5, characterized in that: The movable frame (302) forms an elastic structure with the fixed plate (304) via the spring (303), and the spring (303) is disposed between the movable frame (302) and the fixed plate (304).

8. The industrial waste slag calcination equipment according to claim 5, characterized in that: The first flange (305) forms a sealing structure with the second flange (310) through the first sealing gasket (306) and the second sealing gasket (312), and the first sealing gasket (306) and the second sealing gasket (312) are respectively disposed on one side of the first flange (305) and the second flange (310).

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