Ash discharging and suppressing system of annular water curtain ash silo
By combining atomization dust suppression and annular water curtain dust suppression technology during the ash unloading process of ash warehouse, the existing single spray dust suppression problem is solved, and a more efficient dust suppression effect is achieved, adapting to the current stricter environmental protection requirements.
Patent Information
- Application Number
- CN202420751593.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-12
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-04-12
AI Technical Summary
The existing single spray dust suppression component cannot meet the current stricter environmental protection requirements during the ash unloading process of coal-fired thermal power plants, and the dust suppression effect is not ideal.
A ring water curtain dust removal and dust suppression system is designed, combining atomization dust suppression component and annular water curtain dust suppression component to atomize the inlet and exit of the warehouse through the atomization nozzle, and a retractable ring water curtain dust suppression component forms an annular water curtain in the gray space to enclose and suppress dust.
It significantly improves the dust suppression effect during the ash unloading process of the ash warehouse, reduces the dust dispersion space, and allows a large amount of dust to be removed by the water curtain, which can meet the current stricter environmental protection requirements.
Smart Images
Figure CN222664889U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of ash bin ash unloading and dust suppression, in particular to an annular water curtain ash bin ash unloading and dust suppression system. Background Art
[0002] In coal-fired power plants, coal produces ash, which is usually stored in ash bins. Whether to unload the ash is determined based on the loading volume. A large amount of dust will be generated during the unloading process. Generally, the ash bins need to be equipped with spray dust suppression components to suppress dust. Due to the increasingly stringent environmental protection requirements, the existing single spray dust suppression effect is not ideal and can no longer meet the existing environmental protection requirements. Summary of the invention
[0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the utility model provides an annular water curtain ash bin ash unloading dust suppression system, which can significantly improve the dust suppression effect by using an atomizing dust suppression component and an annular water curtain dust suppression component to respectively perform atomizing dust suppression on the inlet and outlet and perform water curtain enclosure dust suppression on the ash falling space.
[0004] Technical solution: To achieve the above-mentioned purpose, the utility model provides an annular water curtain ash bin ash unloading and dust suppression system, comprising an atomizing dust suppression component arranged at the entrance and exit of the ash bin and an annular water curtain dust suppression component arranged at the ash unloading port of the ash bin; the annular water curtain dust suppression component is retractable, and the annular water curtain dust suppression component surrounds the ash inlet of the ash tank truck in the extended state, so that the annular water curtain structure formed by the annular water curtain dust suppression component in the water supply state surrounds the ash falling space between the ash unloading port and the ash inlet.
[0005] Furthermore, the annular water curtain dust suppression assembly includes an upper water distribution ring plate and a lower water collection ring plate connected by a telescopic mechanism. The upper water distribution ring plate fixed relative to the ash bin is sleeved on the outer periphery of the ash discharge port, and the telescopic mechanism pushes the lower water collection ring plate to move downward and sleeved on the ash inlet of the ash tank truck.
[0006] Furthermore, a plurality of water spray nozzles are arranged in a circumferential array on the upper water distribution ring plate, and a plurality of water collecting nozzles are arranged in a circumferential array on the corresponding lower water collecting ring plate. A flowing water column is formed by the water spraying of the water spray nozzles and the water collecting of the water collecting nozzles, and the flowing water columns in the plurality of circumferential arrays constitute the annular water curtain structure.
[0007] Furthermore, the upper water distribution ring plate has a water supply valve, which is connected to a water supply power source through a water supply pipeline; the lower water collection ring plate has a water collection valve, which is connected to a water collection power source through a water collection pipeline.
[0008] Furthermore, the atomizing dust suppression component is composed of atomizing nozzles whose opening and closing are controlled by electromagnetic valves, and the atomizing nozzles are distributed at the entrance and exit of the ash bin.
[0009] Furthermore, it includes an infrared sensor arranged at the outlet of the ash bin, through which the ash tank truck enters the bin and interlocks the atomizing dust suppression component to start / stop the atomizing dust suppression action.
[0010] Beneficial effect: The utility model uses an atomizing dust suppression component and an annular water curtain dust suppression component to respectively perform atomizing dust suppression on the entrance and exit and perform water curtain enclosure dust suppression on the dust falling space, thereby combining water curtain dust suppression with water curtain dust suppression to greatly improve the dust suppression effect. What is more prominent is that water curtain dust suppression is performed in the dust falling space to reduce the dust spreading space, so that a large amount of dust is removed by the water curtain dust suppression, thereby significantly improving the dust suppression effect and being able to adapt to the current environment with high environmental protection requirements. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Attached Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0012] Attached Figure 2 This is a schematic diagram of the structure of the annular water curtain dust suppression component. DETAILED DESCRIPTION
[0013] The utility model is further described below in conjunction with the accompanying drawings.
[0014] As attached Figure 1 As shown, a ring-shaped water curtain ash bin ash unloading dust suppression system includes an atomizing dust suppression component arranged at the inlet and outlet of the ash bin 1 and an annular water curtain dust suppression component 4 arranged at the ash unloading port 1.1 of the ash bin 1; the annular water curtain dust suppression component 4 is retractable, and the annular water curtain dust suppression component 4 surrounds the ash inlet 2.1 of the ash tanker 2 in the extended state, so that the annular water curtain structure 16 formed by the annular water curtain dust suppression component 4 in the water supply state surrounds the ash falling space between the ash unloading port 1.1 and the ash inlet 2.1. The utility model uses the atomizing dust suppression component and the annular water curtain dust suppression component 4 to respectively perform atomizing dust suppression on the inlet and outlet and water curtain enclosure dust suppression on the ash falling space, combines water curtain dust suppression with water curtain dust suppression, and greatly improves the dust suppression effect. More prominently, water curtain dust suppression is performed in the ash falling space, which reduces the dust spreading space and allows a large amount of dust to be removed by the water curtain dust suppression, thereby significantly improving the dust suppression effect and being able to adapt to the current environment with high environmental protection requirements.
[0015] As attached Figure 2 As shown, the annular water curtain dust suppression assembly 4 includes an upper water distribution ring plate 6 and a lower water collection ring plate 7 connected by a telescopic mechanism 5. The upper water distribution ring plate 6 fixed relative to the ash storage 1 is sleeved on the outer periphery of the ash discharge port 1.1. When dust suppression is not performed, the telescopic mechanism 5 shortens and drives the lower water collection ring plate 7 to move upward. When dust suppression is required, when the ash tanker 2 enters the storage and reaches the position corresponding to the ash inlet 2.1 and the ash discharge port 1.1, the telescopic mechanism 5 pushes the lower water collection ring plate 7 to move downward and sleeve on the ash inlet 2.1 of the ash tanker 2. Among them, the telescopic mechanism 5 adopts a cylinder or an electric push rod.
[0016] A plurality of water spray nozzles 60 are arranged in a circumferential array on the upper water distribution ring plate 6, and a plurality of water collecting nozzles 70 are arranged in a circumferential array on the corresponding lower water collecting ring plate 7. The water spraying of the water spray nozzles 60 cooperates with the water collecting of the water collecting nozzles 70 to form a flowing water column, and the flowing water columns of the plurality of circumferential arrays constitute the annular water curtain structure 16. The flowing water column formed by the cooperation between the water spray nozzles 60 and the water collecting nozzles 70 has a fast water flow speed, and the formed annular water curtain structure 16 is relatively stable and not easily broken by dust, and the dust suppression effect of the water curtain is better.
[0017] More specifically, the upper water distribution ring plate 6 has a water supply valve 12, and the water supply valve 12 is connected to a water supply power source 10 through a water supply pipe 13; the lower water collection ring plate 7 has a water collection valve 14, and the water collection valve 14 is connected to a water collection power source 11 through a water collection pipe 15. The water supply valve 12 and the water collection valve 14 are both electric valves, the water supply power source 10 is a water supply pump, and the water collection power source 11 is a water pump. In order to save costs, a circulating water tank can be set between the water supply pump and the water pump to realize water recycling.
[0018] As attached Figure 1 As shown, the atomizing dust suppression component is composed of an atomizing nozzle 8 whose opening and closing is controlled by a solenoid valve, and the atomizing nozzle 8 is distributed at the entrance 1a and the exit 1b of the ash bin 1. The utility model includes an infrared sensor 9 arranged at the exit 1b of the ash bin 1, through which the infrared sensor 9 senses the entry status of the ash tanker 2, and interlocks the atomizing dust suppression component to start / close the atomizing dust suppression action. When the ash tanker 2 passes under the infrared sensor 9, the atomizing dust suppression component starts spraying dust suppression until the ash unloading is completed and the ash tanker 2 leaves. The infrared sensor 9 cannot sense the vehicle entering the warehouse, and the atomizing dust suppression component turns off the spraying dust suppression.
[0019] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.
Claims
1. A ring-shaped water curtain ash silo ash unloading and dust suppression system, characterized in that: The invention comprises an atomizing dust suppression component arranged at an inlet and outlet of an ash silo (1) and an annular water curtain dust suppression component (4) arranged at an ash discharge port (1.1) of the ash silo (1); the annular water curtain dust suppression component (4) is retractable, and in an extended state, the annular water curtain dust suppression component (4) surrounds an ash inlet (2.1) of an ash tank truck (2), so that an annular water curtain structure (16) formed by the annular water curtain dust suppression component (4) in a water supply state surrounds an ash falling space between the ash discharge port (1.1) and the ash inlet (2.1).
2. The annular water curtain ash silo ash unloading and dust suppression system according to claim 1 is characterized by: The annular water curtain dust suppression assembly (4) comprises an upper water distribution ring plate (6) and a lower water collection ring plate (7) connected by a telescopic mechanism (5); the upper water distribution ring plate (6) fixed relative to the ash bin (1) is sleeved on the outer periphery of the ash discharge port (1.1); the telescopic mechanism (5) pushes the lower water collection ring plate (7) to move downward and sleeved on the ash inlet (2.1) of the ash tank truck (2).
3. The annular water curtain ash silo ash unloading and dust suppression system according to claim 2 is characterized by: A plurality of water spray nozzles (60) are arranged in a circumferential array on the upper water distribution ring plate (6), and a plurality of water collecting nozzles (70) are arranged in a circumferential array on the corresponding lower water collecting ring plate (7). The water spraying of the water spray nozzles (60) and the water collecting of the water collecting nozzles (70) form a flowing water column, and the flowing water columns in the circumferential array constitute the annular water curtain structure (16).
4. The annular water curtain ash silo ash unloading and dust suppression system according to claim 3 is characterized by: The upper water distribution ring plate (6) has a water supply valve (12), and the water supply valve (12) is connected to a water supply power source (10) through a water supply pipe (13); the lower water collection ring plate (7) has a water collection valve (14), and the water collection valve (14) is connected to a water collection power source (11) through a water collection pipe (15).
5. The annular water curtain ash silo ash unloading and dust suppression system according to claim 4 is characterized by: The atomizing dust suppression component is composed of an atomizing nozzle (8) whose opening and closing are controlled by a solenoid valve, and the atomizing nozzle (8) is distributed at an inlet (1a) and an outlet (1b) of an ash bin (1).
6. The annular water curtain ash silo ash unloading and dust suppression system according to claim 5 is characterized by: It comprises an infrared sensor (9) arranged at the outlet (1b) of the ash silo (1), through which the infrared sensor (9) senses the storage status of the ash tanker (2) and interlocks the atomizing dust suppression component to start / stop the atomizing dust suppression action.