System integration device for feeding of furnace kiln

Abstract

The utility model discloses a system integration device for feeding of a furnace kiln, which relates to the field of solid waste disposal of a high-temperature furnace kiln, and comprises an upper material bin used for filtering and temporarily storing materials, and a middle material bin arranged behind the upper material bin; one end of the feeding belt is arranged below the upper stock bin, the other end of the feeding belt is arranged above the middle stock bin, and materials output by the upper stock bin are conveyed to the middle stock bin through the feeding belt; the upper part of the lower bin is communicated with the middle bin, an upper pneumatic gate valve is arranged at the joint to control opening and closing, the lower part of the lower bin is communicated with the furnace inlet through a feeding pipeline, and a lower pneumatic gate valve is arranged at the joint of the lower bin and the feeding pipeline to control opening and closing. Grid filtration, belt speed regulation and double pneumatic gate valve air sealing are adopted, the technological process is optimized, large-particle impurities can be filtered in the feeding process, the feeding speed is adjustable and controllable, meanwhile, it is ensured that smoke in the furnace does not overflow during feeding through smoke sealing, and the operation safety of the furnace in the feeding process is improved.

Description

A system integration device for feeding furnaces and kilns. Technical Field

[0001] This utility model relates to the field of high-temperature furnace and kiln solid waste disposal, and specifically to a system integration device for furnace and kiln feeding. Background Technology

[0002] When solid waste is processed in furnaces and kilns, there are requirements regarding the form, composition, and moisture content of the materials. Existing feeding technologies in the field of solid waste treatment in high-temperature furnaces and kilns, such as mechanical screening + screw feeding and single-gate sealing, have the following problems:

[0003] 1. Poor material compatibility, such as large particles clogging equipment or pipelines;

[0004] 2. Low level of intelligence; most feeding systems lack real-time load feedback and adaptive adjustment functions.

[0005] 3. Insufficient sealing causes smoke leakage and "fire" in the furnace during material feeding, posing a safety hazard.

[0006] In summary, conventional feeding systems may contain impurities, have uneven feeding, and poor furnace inlet sealing, which can lead to flue gas overflow from the furnace and cause safety risks. Summary of the Invention

[0007] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a system integration device for furnace feeding. It adopts grid filtration, belt speed regulation and double pneumatic slide valve air seal, which optimizes the process flow. During the feeding process, large particulate impurities can be filtered, the feeding speed is adjustable and controllable, and at the same time, the flue gas seal ensures that the flue gas in the furnace does not overflow during feeding, thus increasing the safety of the furnace feeding process.

[0008] The objective of this utility model is achieved through the following technical solution: This integrated system device for furnace feeding includes:

[0009] The feeding hopper is used for filtering and temporarily storing materials, and the intermediate feeding hopper is set behind the feeding hopper.

[0010] The feed belt has one end located below the upper hopper and the other end located above the middle hopper. The feed belt transports the material output from the upper hopper to the middle hopper.

[0011] The upper part of the feeding hopper is connected to the middle feeding hopper, and the connection is equipped with an upper pneumatic slide valve to control its opening and closing. The lower part is connected to the furnace inlet through a feeding pipe, and the connection between the feeding hopper and the feeding pipe is equipped with a lower pneumatic slide valve to control its opening and closing.

[0012] The upper pneumatic slide gate valve and the lower pneumatic slide gate valve are interlocked, so that only one of them is open at any given time while the other is closed.

[0013] As a further technical solution, the feeding hopper is equipped with a filter grid to filter materials and remove large particulate impurities.

[0014] As a further technical solution, the feed belt is controlled by a remote control terminal signal to realize start-stop control and frequency conversion speed regulation, thereby adjusting the feed rate according to the furnace operation requirements.

[0015] As a further technical solution, the feeding hopper is equipped with an air-filling and pressure-maintaining device, which is used to fill the feeding hopper with compressed air to ensure that the air pressure in the feeding hopper is greater than the air pressure in the furnace.

[0016] As a further technical solution, a metal expansion joint is provided at the connection between the lower part of the feeding hopper and the feeding pipe to compensate for the displacement of the furnace due to temperature rise or fall, and to prevent deformation of the connection between the feeding equipment and the furnace.

[0017] The beneficial effects of this utility model are as follows:

[0018] 1. The material passes through the feed hopper (loading bin), feed belt, middle bin, unloading bin, double pneumatic slide gate valve, air pressure holding device, and metal expansion joint in sequence. The process system is controllable and safe, with low operation difficulty and high degree of automation.

[0019] 2. By installing a filter grid in the feeding hopper, the material is filtered to prevent large particles of impurities from clogging the feeding system equipment;

[0020] 3. By setting up a feed belt, the material feeding speed can be adjusted to match the furnace operation requirements;

[0021] 4. By setting up dual pneumatic slide gate valves and air-pressurizing devices, the flue gas inside the furnace is prevented from overflowing, thus improving the safety of the furnace operation during the feeding process. Attached Figure Description

[0022] Figure 1 is a schematic diagram of the structure of this utility model.

[0023] Explanation of reference numerals in the attached diagram: 1. Feeding hopper; 2. Feeding belt; 3. Middle hopper; 4. Lower hopper; 5. Upper pneumatic slide gate valve; 6. Metal expansion joint; 7. Inflating and pressure holding device; 8. Lower pneumatic slide gate valve; 9. Feeding pipe; 10. Furnace inlet; 11. Support frame. Detailed Implementation

[0024] The present invention will now be described in detail with reference to the accompanying drawings:

[0025] Example: As shown in Figure 1, this integrated system for feeding furnaces includes a feeding hopper 1, a feeding belt 2, a middle hopper 3, a lower hopper 4, an upper pneumatic slide gate valve 5, a metal expansion joint 6, an air-pressurizing device 7, a lower pneumatic slide gate valve 8, a feeding pipe 9, a furnace inlet 10, and a support frame 11.

[0026] Referring to Figure 1, the feeding hopper 1 is supported by a support frame 11. The feeding hopper 1 receives material from an external conveyor and utilizes a filter grid within it to initially filter the material, removing large particles (preferably, the material size entering the feeding belt 2 is less than 5×5×5cm) to prevent clogging of the feeding system. The feeding hopper 1 serves to filter and temporarily store materials. A secondary feeding hopper 3 is located behind the feeding hopper 1. The front end of the feeding belt 2 is positioned below the outlet of the feeding hopper 1, and the rear end is positioned above the inlet of the secondary feeding hopper 3. The feeding belt 2 transports the material output from the feeding hopper 1 to the secondary feeding hopper 3. Preferably, the feeding belt 2 is controlled by a remote control signal, enabling start / stop control and variable frequency speed regulation, thereby adjusting the feed rate according to the furnace operation requirements.

[0027] Furthermore, the upper part (feed inlet) of the feeding hopper 4 is connected to the discharge outlet of the intermediate feeding hopper 3, and an upper pneumatic slide valve 5 is installed at the connection between the feeding hopper 4 and the intermediate feeding hopper 3 to control their opening and closing. Simultaneously, the lower part (discharge outlet) of the feeding hopper 4 is connected to the furnace inlet 10 via a feeding pipe 9, and a lower pneumatic slide valve 8 is installed at the connection between the feeding hopper 4 and the feeding pipe 9 to control their opening and closing. The upper pneumatic slide valve 5 and the lower pneumatic slide valve 8 are interlocked, ensuring that only one is open and the other is closed at any given time. Preferably, a pressure-maintaining air charging device is provided on the feeding hopper 4 to charge compressed air into the feeding hopper 4, ensuring that the air pressure inside the feeding hopper 4 is greater than the air pressure inside the furnace (the feeding hopper pressure is greater than 5000 Pa and higher than the furnace pressure). When the lower pneumatic slide valve 8 opens to feed, air flows into the furnace, thereby preventing flue gas from overflowing from the furnace. By installing dual pneumatic slide gate valves and an air-pressurizing device, the safety of the furnace operation can be improved by ensuring that the flue gas inside the furnace does not overflow.

[0028] Preferably, a metal expansion joint 6 is provided at the connection between the lower part of the feeding hopper 4 and the feeding pipe 9. The metal expansion joint 6 is used to compensate for the displacement of the furnace caused by the temperature rise or fall, and to avoid deformation of the connection between the feeding equipment and the furnace.

[0029] During production, the material is fed into the feeding hopper 1 for filtration and storage. Large particles are filtered out by a steel grating to prevent them from clogging the feeding system and to buffer the material. Then, the feeding speed (feed rate) is adjusted by the feeding belt to meet the needs of the furnace operation. Subsequently, the pressure in the feeding hopper is controlled to be higher than the pressure in the furnace by the air-pressurizing device 7, so that the material and air are fed into the furnace together to ensure that the flue gas in the furnace does not overflow.

[0030] The working process of this utility model:

[0031] This utility model is arranged along the material conveying direction, consisting of a feeding hopper 1, a feeding belt 2, a middle feeding hopper 3, a feeding hopper 4, a double pneumatic gate valve, an air-pressurizing device 7, and a metal expansion joint 6, arranged sequentially from front to rear. Material is filtered and stored in the feeding hopper 1 to filter out large particles. The filtered material enters the feeding belt 2, and the speed of the feeding belt 2 is adjusted according to the feeding requirements. A fixed amount of material enters the middle feeding hopper 3 to wait. When the furnace needs to be fed, the upper pneumatic gate valve 5 at the top of the feeding hopper 4 is opened to control the material to enter the feeding hopper. At the same time, the lower pneumatic gate valve 8 is closed. After the material enters the feeding hopper 4, the upper pneumatic gate valve 5 at the top of the feeding hopper is closed, and compressed air is supplied to the feeding hopper 4 through the compressed air pipeline (air-pressurizing device 7). After the pressure in the feeding hopper 4 reaches the set pressure, the lower pneumatic gate valve 8 at the bottom of the feeding hopper 4 is opened, allowing the material and air to enter the furnace, ensuring that the flue gas inside the furnace does not overflow. Because the pneumatic slide gate valves at the top and bottom of the feeding hopper 4 have an interlocking function and cannot be opened simultaneously, the isolation between the material and the flue gas in the furnace can be guaranteed.

[0032] It is understood that, for those skilled in the art, any equivalent substitutions or modifications to the technical solutions and inventive concepts of this utility model should fall within the protection scope of the appended claims.

Claims

1. A system integration device for feeding furnaces and kilns, characterized in that, include: The feeding hopper (1) is used for filtering and temporarily storing materials. The middle feeding hopper (3) is set behind the feeding hopper (1). The feeding belt (2) is set at one end below the feeding hopper (1) and at the other end above the middle feeding hopper (3). The feeding belt (2) transports the material output from the feeding hopper (1) to the middle feeding hopper (3). The unloading hopper (4) is connected to the middle feeding hopper (3) at the top and is connected to the connection with an upper pneumatic slide valve (5) for opening and closing. The unloading hopper (4) is connected to the furnace inlet (10) through a feeding pipe (9) at the bottom and is connected to the connection with the feeding pipe (9) with a lower pneumatic slide valve (8) for opening and closing. The upper pneumatic slide valve (5) and the lower pneumatic slide valve (8) are interlocked so that only one is open and the other is closed at the same time.

2. The integrated system device for furnace feeding according to claim 1, characterized in that: The feeding hopper (1) is equipped with a filter grid for filtering materials and removing large particulate impurities.

3. The integrated system device for furnace feeding according to claim 1, characterized in that: The feed belt (2) is controlled by a remote control terminal signal to realize start-stop control and frequency conversion speed regulation, thereby adjusting the feed amount according to the furnace operation requirements.

4. The integrated system device for furnace feeding according to claim 1, characterized in that: The feeding hopper (4) is equipped with an air-filling and pressure-maintaining device (7) for filling the feeding hopper (4) with compressed air to ensure that the air pressure in the feeding hopper (4) is greater than the air pressure in the furnace.

5. The integrated system device for furnace feeding according to claim 1, characterized in that: The lower part of the feeding hopper (4) is provided with a metal expansion joint (6) at the connection between the feeding pipe (9) and the feeding hopper (4), which is used to compensate for the displacement of the furnace due to temperature rise or fall, and to prevent deformation of the connection between the feeding equipment and the furnace.

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