Dry sludge storage and transportation system
The dried sludge storage and transportation system, including silos, rotary screw conveyors, high-precision metering scales, pneumatic conveying feeding boots and other equipment, solves the safety, efficiency and environmental protection issues of dried sludge in cement enterprises, and realizes the safe, stable transportation and full combustion of dried sludge.
Patent Information
- Application Number
- CN202423075923.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-12-12
AI Technical Summary
How to efficiently and safely feed dried sludge into the cement burning system to ensure that the storage and transportation processes of sludge treatment plants and cement companies are safe, environmentally friendly and efficient.
A dried sludge storage and transportation system is adopted, including silos, rotary screw conveyors, high-precision weighing scales, discharge screw conveyors and pneumatic conveying feeding boots. The dried sludge is transported step by step through these equipment and burned in the decomposition furnace. Load sensors and dust collectors are installed to monitor and control quality and dust. The feeding amount is adjusted by utilizing the differences in the connection points of multiple branches to ensure sufficient combustion.
It realizes the safe, efficient and environmentally friendly storage and transportation of dried sludge, ensures the full combustion of dried sludge in the decomposition furnace, reduces the impact of dust overflow on the environment, and improves the safety and stability of the system.
Smart Images
Figure CN223421629U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of dried sludge treatment technology, in particular to a dried sludge storage and transportation system. Background Art
[0002] With the rapid development of the social economy, urbanization, and industrialization, urban sewage production has increased annually. Sludge, a byproduct of sewage treatment, has also seen a continuous increase in production, necessitating the harmless treatment of sludge. Dried sludge has similar chemical composition to pulverized coal in terms of combustion properties, making it suitable as an alternative fuel in the cement industry. However, how to efficiently and safely feed dried sludge into cement firing systems poses a challenge for sludge treatment manufacturers and cement companies. Utility Model Content
[0003] In order to ensure the safety, efficiency and environmental protection of the storage and transportation of dried sludge, the utility model provides a dried sludge storage and transportation system.
[0004] The utility model provides a dried sludge storage and transportation system adopts the following technical solutions:
[0005] A dried sludge storage and transportation system includes a silo. A rotating screw conveyor for transporting dried sludge outward is provided in the silo. The rotating screw conveyor is connected to a high-precision metering scale. A discharge screw conveyor is installed at the bottom of the high-precision metering scale. A pneumatic conveying feeding boot is connected between the discharge screw conveyor and the decomposition furnace.
[0006] By adopting the above technical solution, the dried sludge is stored in the silo, passes through the rotary screw conveyor to the high-precision metering scale and discharge screw conveyor, then enters the pneumatic conveying feeding shoe, and finally enters the decomposition furnace for combustion. This storage and transportation system is suitable for the storage and transportation of dried sludge with a particle size of less than 10mm. The dried sludge is transported step by step through the above system, ensuring the safe, efficient and environmentally friendly storage and transportation of dried sludge, and effectively solving the problems faced by sludge treatment manufacturers and cement companies.
[0007] Optionally, the output end of the pneumatic conveying feeding shoe is connected to a three-way valve, which is divided into two branches connected to the decomposition furnace, and the connection point of one branch on the decomposition furnace is higher than the other branch.
[0008] By adopting the above technical solution, the connection points of the two branches and the decomposition furnace are located at different heights of the decomposition furnace to facilitate sufficient combustion.
[0009] Optionally, a gate valve is installed on the branch line.
[0010] By adopting the above technical solution, the feeding amount of the dried sludge in the two branches is dynamically adjusted according to the combustion effect of the dried sludge in the decomposition furnace to ensure that the dried sludge is fully burned in the decomposition furnace.
[0011] Optionally, a rotary feeder is connected between the rotary screw conveyor and the high-precision metering scale and / or between the discharge screw conveyor and the pneumatic conveying feeding shoe.
[0012] By adopting the above technical solution, a rotary discharger is provided to facilitate improving the smoothness of material discharge.
[0013] Optionally, load cells are installed on the silo, the high-precision weighing scale and / or the discharge screw conveyor.
[0014] By adopting the above technical solution, a load sensor is provided to facilitate the measurement of the mass of the dried sludge.
[0015] Optionally, a dust collector is installed on the silo and / or the discharge screw conveyor.
[0016] By adopting the above technical solution, a dust collector is provided to reduce the impact of dust overflow on the environment.
[0017] Optionally, a fire extinguishing system is installed on the silo and / or the high-precision weighing scale.
[0018] By adopting the above technical solution, a fire extinguishing system is set up to extinguish fire in time.
[0019] Optionally, explosion-proof valves are installed on the silo.
[0020] By adopting the above technical solution, an explosion-proof valve is provided to improve explosion-proof safety.
[0021] In summary, the present invention has at least one of the following beneficial technical effects:
[0022] 1. Dried sludge is stored in silos, passes through a rotary screw conveyor, and enters a high-precision weighing scale and a discharge screw conveyor. It then enters a pneumatic conveying feed shoe and finally enters a decomposition furnace for combustion. This storage and transportation system is suitable for storing and transporting dried sludge with a particle size of less than 10mm. The dried sludge is transported step by step through the above system, ensuring the safe, efficient and environmentally friendly storage and transportation of dried sludge, effectively solving the problems faced by sludge treatment plants and cement companies.
[0023] 2. The connection points of the two branches to the calciner are located at different heights of the calciner to facilitate full combustion;
[0024] 3. A load cell is set up to facilitate the measurement of the quality of dried sludge. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 It is a structural diagram of a dried sludge storage and transportation system according to an embodiment of the present utility model.
[0026] Explanation of the accompanying symbols: 1. Silo; 2. Rotary screw conveyor; 3. High-precision measuring scale; 4. Discharge screw conveyor; 5. Pneumatic conveying feeding shoe; 6. Decomposition furnace; 7. Rotary discharger; 8. Load sensor; 9. Three-way valve; 10. Gate valve; 11. Dust collector; 12. Fire extinguishing system; 13. Explosion-proof valve. DETAILED DESCRIPTION
[0027] The following is combined with Figure 1 The utility model is described in further detail.
[0028] The present invention discloses a drying sludge storage and transportation system. Figure 1 The dried sludge storage and transportation system includes a silo 1, a rotary screw conveyor 2, a high-precision metering scale 3, a discharge screw conveyor 4 and a pneumatic conveying feeding shoe 5, which are arranged in sequence. The dried sludge finally enters the decomposition furnace 6 through the pneumatic conveying feeding shoe 5 for combustion.
[0029] Reference Figure 1 After being transported to the cement plant, the dried sludge is stored in an appropriately sized silo 1. Silo 1 has vertical walls to prevent bridging of the dried sludge within the silo, and a horizontal bottom wall. A rotary screw conveyor 2 is installed at the bottom of silo 1. It rotates around the center of silo 1, transporting the dried sludge to the center of silo 1. Rotating around the center of silo 1, it ensures that the dried sludge is discharged continuously, stably, and relatively easily.
[0030] Reference Figure 1 The high-precision metering scale 3 is installed on the discharge screw conveyor 4. The high-precision metering scale 3 controls the accuracy of the dried sludge feed amount within ±1%, reducing the impact of fluctuations in the dried sludge feed amount on the cement burning system. A rotary discharger 7 is connected between the rotary screw conveyor 2 and the high-precision metering scale 3 to facilitate the smooth and orderly transportation of the dried sludge. The rotary discharger 7 is airtight, ensuring that the dried sludge will not scatter or fly. A rotary discharger 7 is connected between the discharge screw conveyor 4 and the pneumatic conveying feeding shoe 5. The dried sludge measured by the high-precision metering scale 3 enters the pneumatic conveying feeding shoe 5 through the rotary discharger 7.
[0031] Reference Figure 1Load cells 8 are installed on the silo 1, high-precision weighing scale 3, and discharge screw conveyor 4 to facilitate measuring the weight of the dried sludge. The output end of the pneumatic conveying feed shoe 5 is connected to a three-way valve 9. The three-way valve 9 is divided into two branches connected to the decomposition furnace 6. Each branch is equipped with an adjustable gate valve 10. The connection points of the two branches to the decomposition furnace 6 are located at different heights of the decomposition furnace 6. Therefore, the feed rate of the dried sludge in the two branches can be dynamically adjusted according to the combustion effect of the dried sludge in the decomposition furnace 6 to ensure that the dried sludge is fully burned in the decomposition furnace 6.
[0032] Reference Figure 1 A dust collector 11 is installed on the top of the silo 1 to reduce the impact of dust overflow on the environment. An explosion-proof dust collector 11 is installed on the head of the discharge screw conveyor 4 to prevent the pneumatically conveyed air from entering the high-precision metering scale 3, thereby ensuring the stability and accuracy of the system operation. The silo 1 and the high-precision metering scale 3 are both connected to a fire extinguishing system 12 to extinguish the fire in time. The top of the silo 1 is explosion-proof and is equipped with an explosion-proof valve 13. The above-mentioned multiple structural designs effectively ensure the safety of the system during the storage and transportation of dried sludge.
[0033] The operating principle of the dried sludge storage and transportation system in this embodiment is as follows: dried sludge is stored in silo 1, passes through rotary screw conveyor 2 and rotary feeder 7, and then enters high-precision weighing scale 3 and discharge screw conveyor 4. Then, it passes through rotary feeder 7 and enters pneumatic conveying feed shoe 5. Finally, it passes through two branches of three-way valve 9 and enters decomposition furnace 6 for complete combustion. This storage and transportation system is suitable for storing and transporting dried sludge with a particle size of less than 10 mm. Dried sludge is transported step by step through the above system, ensuring safe, efficient, and environmentally friendly storage and transportation of dried sludge, effectively solving problems faced by sludge treatment plants and cement companies.
[0034] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.
Claims
1. A dried sludge storage and transportation system, characterized by: The invention comprises a silo (1), wherein a rotary screw conveyor (2) for conveying dried sludge outward is arranged in the silo (1), the rotary screw conveyor (2) is connected to a high-precision metering scale (3), a discharge screw conveyor (4) is installed at the bottom of the high-precision metering scale (3), and a pneumatic conveying feeding shoe (5) is connected between the discharge screw conveyor (4) and the decomposition furnace (6).
2. The dried sludge storage and transportation system according to claim 1, characterized in that: The output end of the pneumatic conveying feeding shoe (5) is connected to a three-way valve (9), which is divided into two branches connected to the decomposition furnace (6), and the connection point of one branch on the decomposition furnace (6) is higher than that of the other branch.
3. The dried sludge storage and transportation system according to claim 2, characterized in that: A gate valve (10) is installed on the branch line.
4. The dried sludge storage and transportation system according to claim 1, characterized in that: A rotary feeder (7) is connected between the rotary screw conveyor (2) and the high-precision metering scale (3) and / or between the discharge screw conveyor (4) and the pneumatic conveying feeding shoe (5).
5. The dried sludge storage and transportation system according to claim 1, characterized in that: A load sensor (8) is installed on the silo (1), the high-precision weighing scale (3) and / or the discharge screw conveyor (4).
6. The dried sludge storage and transportation system according to claim 1, characterized in that: A dust collector (11) is installed on the silo (1) and / or the discharge screw conveyor (4).
7. The dried sludge storage and transportation system according to claim 1, characterized in that: A fire extinguishing system (12) is installed on the silo (1) and / or the high-precision weighing scale (3).
8. The dried sludge storage and transportation system according to claim 1, characterized in that: An explosion-proof valve (13) is installed on the silo (1).