Sealed feeding device for sludge incinerator
By using a double-layer flip valve and buffer chamber in the sludge incinerator, combined with an electric actuator and temperature sensor, the problems of sealing and smooth feeding are solved, and the stable combustion and smooth feeding of the incinerator are achieved.
Patent Information
- Application Number
- CN202422075176.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-27
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-08-27
AI Technical Summary
The feeding method of existing sludge incinerators has poor sealing properties, external air may enter and affect the combustion conditions, and the sludge is highly viscous, resulting in poor feeding.
It adopts a double-layer flip valve and a sludge buffer chamber, and is equipped with an electric actuator to control the flip opening and closing, combining a vibrating device and a temperature sensor to ensure sealing and smooth feeding.
Effectively prevent external air from entering the incinerator, ensure stable combustion conditions, prevent sludge from sticking to walls and poor cutting, and achieve stable operation of feed.
Smart Images
Figure CN223121433U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of sludge treatment and disposal, in particular to a sealed feeding device for a sludge incinerator. Background Art
[0002] At present, the sludge treatment technology is in a stage of continuous development. Around the goals of sludge reduction, stabilization, harmlessness and resource utilization, the main domestic sludge treatment technologies include anaerobic digestion, aerobic composting, incineration and landfill, etc. Among them, incineration treatment has the characteristics of the most thorough reduction, stabilization and harmlessness. "Incineration" is the key process route to solve the sludge problem.
[0003] In the prior art, the feeding methods of most sludge incinerators are pipeline pump transportation or screw feeding. In the pipeline pump transportation method, the moisture content of the sludge entering the furnace is usually above 60%, which can ensure normal transportation. Due to the low calorific value of the sludge, auxiliary fuel generally needs to be supplemented in the furnace to maintain the furnace temperature, resulting in high energy consumption. In the screw feeding method, the sludge with a moisture content lower than 40% and higher than 60% is generally transported into the furnace respectively to meet the conditions of self-sustaining combustion of the sludge in the furnace. At present, most domestic sludge projects adopt this feeding method. However, due to poor sealing of the screw feeding method, outside air may enter the incinerator through the conveying system, affecting the furnace temperature and oxygen content in the flue gas of the incinerator and the combustion condition of the incinerator. In addition, due to the high viscosity of the sludge, wall sticking and blockage occur during the feeding process, affecting the smooth feeding. Summary of the Utility Model
[0004] Aiming at the deficiencies in the above prior art, the purpose of the utility model is to provide a sealed feeding device for a sludge incinerator. The device is equipped with a double-layer flap valve, a sludge buffer bin is set, and at the same time, according to the properties of the sludge, the design is optimized. An electric drive device is used to control the opening and closing of the double-layer flap valve, and a vibrating device is configured. When the sludge adheres or the feeding is not smooth, the vibrating device is used to assist the feeding. A temperature sensor is configured to monitor the temperature of the buffer bin in real time. Through the above measures, the tightness of the incinerator can be ensured, the outside air can be prevented from entering the incinerator, affecting the combustion condition of the incinerator, and at the same time, the smooth feeding of the sludge can be ensured.
[0005] In order to achieve the above invention purpose, the technical solution of the utility model is realized in the following way:
[0006] A sealed feeding device for a sludge incinerator, which includes a sludge conveying device, a front-end sealing device, a pneumatic slide gate, a sludge buffer bin, and a sludge screw feeder. The front-end sealing device includes: an upper flap, a lower flap, an electric actuator and a vibrating device.
[0007] The sealed feeding device for a sludge incinerator is characterized in that the sludge buffer bin is configured with a temperature sensor to monitor the temperature in the sludge buffer bin in real time.
[0008] In the above feeding sealing device, a pneumatic slide gate is arranged between the sludge buffer bin and the front-end sealing device. When the temperature detected by the temperature sensor is too high, the sludge conveying equipment and the pneumatic slide gate are closed interlockingly.
[0009] Sludge enters the front-end sealing device, and the electric actuator controls the upper flap and the lower flap to open alternately. Only one of the upper flap and the lower flap is in the open state, ensuring the isolation between the sludge conveying system and the sludge incinerator.
[0010] Due to the adoption of the above structure, the present utility model has the following advantages and beneficial effects as compared with the prior art:
[0011] 1. The sludge incinerator of the present utility model adopts a feeding sealing device. Through the electric actuator, the opening and closing of the upper flap and the lower flap are controlled, and a buffer bin is arranged. Compared with the commonly used spiral feeder at present, it can effectively prevent external air from entering the incinerator through the sludge conveying system and affecting the combustion condition.
[0012] 2. Since the sludge has a large viscosity, the feeding sealing device of the present utility model is equipped with a vibrating device, which is periodically turned on for vibration to prevent sludge adhesion or poor feeding. The real-time monitoring of the temperature of the sludge buffer bin is set to detect equipment failures in time and ensure the stable operation of the feeding device. Description of the Drawings
[0013] Figure 1 It is a system schematic diagram of an embodiment of the present utility model.
[0014] In the figure, 1, sludge conveying equipment; 2, front-end sealing device; 3, upper flap; 4, electric actuator; 5, vibrating device; 6, lower flap; 7, pneumatic slide gate; 8, temperature sensor; 9, sludge buffer bin; 10, sludge screw feeder. Detailed Embodiment
[0015] The following further describes the present utility model in conjunction with the drawings and the detailed embodiment.
[0016] Refer to Figure 1 , the feeding sealing device for the sludge incinerator of the present utility model includes: sludge conveying equipment (1), front-end sealing device (2), pneumatic slide gate (7), sludge buffer bin (9), sludge screw feeder (10). The front-end sealing device (2) includes: upper flap (3), lower flap (6), electric actuator (4) and vibrating device (5).
[0017] The sealing feeding device for the sludge incinerator is characterized in that the sludge buffer bin (9) is equipped with a temperature sensor (8) to monitor the temperature inside the sludge buffer bin (9) in real time.
[0018] The sludge enters the front-end sealing device (2) through the sludge conveying equipment (1). The front-end sealing device (2) is equipped with an electric actuator (4). The upper flap (3) and the lower flap (6) are controlled to open alternately through the electric actuator (4). Only one of the upper flap (3) and the lower flap (6) is in the open state. The sludge first enters the upper space of the front-end sealing device (2). After a certain period of time, the upper flap (3) opens, and the sludge falls into the middle space of the front-end sealing device (2). When the upper flap (3) is closed in place, the lower flap (6) opens, and at the same time, the pneumatic slide gate (7) opens. The sludge falls into the sludge buffer bin (9) through the pneumatic slide gate (7), and then through the sludge screw feeder (10) at the bottom of the sludge buffer bin (9), the sludge is evenly sent to the sludge incinerator.
[0019] During this period, the vibration device (5) on the wall of the front-end sealing device (2) is regularly opened to prevent sludge from adhering inside the front-end sealing device (2) or causing poor material discharge.
[0020] A temperature sensor (8) is configured in the sludge buffer bin (9) to monitor the temperature in the sludge buffer bin (9) in real time. When the temperature is too high, the pneumatic slide gate (7) is closed in a chain reaction to completely isolate the sludge buffer bin (9) from the front-end sealing device (2) to ensure the safety of the system.
Claims
1. A sealed feeding device for a sludge incinerator, characterized in that, It includes a sludge conveying device (1), a front-end sealing device (2), a pneumatic slide gate (7), a sludge buffer bin (9), and a sludge screw feeder (10). The front-end sealing device (2) includes: an upper flap (3), a lower flap (6), an electric actuator (4), and a vibrating device (5).
2. The sealed feeding device for a sludge incinerator according to claim 1, characterized in that, The sludge buffer bin (9) is equipped with a temperature sensor (8) to monitor the temperature inside the sludge buffer bin (9) in real time.
3. The sealed feeding device for a sludge incinerator according to claim 1, characterized in that, The configured pneumatic slide gate (7) is located between the sludge buffer bin (9) and the front-end sealing device (2).