Desulfurized ash drying device
The desulfurization ash drying device, which combines a drum-type structure with heating components, solves the problem of insufficient drying of desulfurization ash in existing devices, and achieves full drying of desulfurization ash and environmental protection.
Patent Information
- Application Number
- CN202422823258.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-19
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-11-19
AI Technical Summary
Existing desulfurization ash drying devices use single-sided heating for drying, resulting in insufficient contact between fly ash and the drying device, which leads to incomplete removal of moisture and accumulation of wet desulfurization ash, polluting the environment.
It adopts a drum-type structure with an internal drying assembly containing a rotating shaft and brush head, combined with an external heating assembly and a dust suction pipe. The heating assembly heats up the ash and the rotating shaft lifts up the desulfurization ash. The dust suction pipe and negative pressure pump suck out the residual ash and discharge exhaust gas and moisture.
This method achieves thorough drying of desulfurization ash, reduces waste of residues, mitigates environmental pollution, and improves drying efficiency and safety.
Smart Images
Figure CN223649606U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of material drying technology, and in particular to a desulfurization ash drying device. Background Technology
[0002] Desulfurization ash is a waste product generated during coal-fired power generation, mainly composed of gypsum and calcium oxide. Its applications include comprehensive utilization as a cement raw material and admixture, as well as applications in construction and agriculture. Desulfurization ash is a solid waste generated during the flue gas purification process in coal-fired power generation; its composition and properties make it valuable for environmental protection and resource utilization. The physicochemical properties of wet desulfurization ash are basically the same as those of dry desulfurization ash, but due to its high moisture content (up to 45%), it cannot meet the requirements of cement production and is therefore unpopular in the market. It is often simply piled up in wet ash dumps, accumulating and causing serious environmental pollution.
[0003] Currently, most desulfurization ash drying devices use single-sided heating for drying, which may result in a small contact area between the fly ash and the drying device, making it impossible to completely remove the moisture from the fly ash. Utility Model Content
[0004] This application provides a desulfurization ash drying device, which facilitates the thorough drying of desulfurization ash.
[0005] This application provides a desulfurization ash drying device, which adopts the following technical solution:
[0006] A desulfurization ash drying device includes a drum, a drying component for drying desulfurization ash is provided inside the drum, a feeding device is provided at one end of the drum, a discharge pipe is provided at the end of the drum away from the feeding device, a discharge port is provided on the discharge pipe, a heating component for heating the inside of the drum is provided on the outside of the drum, and a plurality of support columns are provided at the bottom of the drum, the plurality of support columns together support the drum.
[0007] By adopting the above technical solution, the desulfurization ash drying device designed in this utility model first feeds the damp desulfurization ash into the drum through the feeding device, then heats the drum through the heating device set on the outside of the drum, and then dries the damp desulfurization ash through the drying component inside the drum. The dried desulfurization ash flows to the discharge pipe and is then collected through the discharge port. The desulfurization ash drying device designed in this utility model can dry the desulfurization ash in multiple ways by heating through the heating component. Therefore, this device facilitates the thorough drying of desulfurization ash.
[0008] Preferably, the drying assembly includes a rotating shaft fixed inside the drum, a rotating plate fixedly connected to the rotating shaft, a brush head fixedly connected to the rotating shaft, and a driving assembly provided at one end of the rotating shaft.
[0009] By adopting the above technical solution, the rotating shaft is designed to facilitate the rotation of the rotating plate; the rotating plate is designed to facilitate the lifting of desulfurization ash added into the drum; the brush head is designed to facilitate the lifting of desulfurization ash adhering to the inner wall of the drum; and the drive assembly is designed to facilitate the rotation of the rotating shaft.
[0010] Preferably, the feeding device includes a feeding funnel fixed to the top of the drum, and a feeding pipe is provided at the bottom of the feeding funnel, the feeding pipe being connected to the top of the drum.
[0011] By adopting the above technical solution, the feed funnel is set up to facilitate the addition of a large amount of desulfurization ash; the feed pipe is set up to facilitate the entry of desulfurization ash into the drum.
[0012] Preferably, the heating assembly includes a heater fixed to the outside of the drum, a plurality of heating elements are provided on the inner wall of the drum, the heater is connected to the heating elements, the heating elements are electric heating elements, a temperature controller is provided on the heater, and a heat insulation layer is provided on the inner wall of the drum.
[0013] By adopting the above technical solution, the heater is designed to facilitate temperature control of the heating element; the heating element is designed to facilitate the conversion of electrical energy into heat energy; the temperature controller is designed to facilitate temperature adjustment inside the drum, preventing overheating and low temperatures; and the insulation layer is designed to facilitate temperature leakage inside the drum.
[0014] Preferably, the drive assembly includes a servo motor fixed to one end of the drum, and the output shaft of the servo motor is fixed to one end of the rotating shaft.
[0015] By adopting the above technical solution, the servo motor is designed to facilitate the rotation of the rotating shaft.
[0016] Preferably, one side of the discharge pipe is connected to a suction pipe, the suction pipe is installed on the outside of the drum, a negative pressure pump is installed on the suction pipe, and one side of the suction pipe is connected to multiple suction ports, which are located inside the drum.
[0017] By adopting the above technical solution, the ash suction pipe is set up to facilitate the suction of some desulfurization ash that does not enter the discharge pipe into the discharge pipe; the ash suction port is set up to facilitate the entry of desulfurization ash; and the negative pressure pump is set up to facilitate the suction of desulfurization ash by pressure.
[0018] Preferably, a check valve is provided on the discharge pipe, which is used to control the unidirectional flow of desulfurization ash.
[0019] By adopting the above technical solution, the check valve can be set to facilitate the control of the desulfurization ash passage at any time, while preventing the desulfurization ash entering the discharge port from returning to the drum.
[0020] Preferably, the top of the drum is provided with an exhaust port, and the exhaust port is provided with a removable sealing cover. The exhaust port is used to discharge the waste gas and moisture generated inside the drum.
[0021] By adopting the above technical solution, the exhaust port is designed to remove moisture and waste gas generated during the drying process, thus avoiding impact on the working environment; the detachable sealing cover is designed to prevent desulfurization ash from escaping during the drying process.
[0022] In summary, this application has the following beneficial effects:
[0023] 1. This device combines heating and drying components to first raise the temperature inside the drum, and then repeatedly raises the desulfurization ash to dry it from multiple angles, making the desulfurization ash dry more thoroughly.
[0024] 2. This device, by setting up a suction pipe and a negative pressure pump, can suck out the desulfurization ash from the corner inside the drum, preventing some desulfurization ash from remaining inside the drum and avoiding waste of desulfurization ash;
[0025] 3. Since some waste gas and moisture are generated during the drying process of desulfurization ash, this device is equipped with an exhaust port to discharge these waste gases and moisture into the drum, providing a clean environment for drying desulfurization ash. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the structure of an embodiment;
[0027] Figure 2 This is a cross-sectional view of the heating assembly shown in the embodiment;
[0028] Figure 3 The image shows a cross-sectional view of the suction pipe in the embodiment;
[0029] Explanation of reference numerals in the attached drawings: 1. Drum; 2. Drying assembly; 21. Rotating shaft; 22. Rotating plate; 23. Brush head; 3. Feeding device; 31. Feeding funnel; 32. Feeding pipe; 4. Discharge pipe; 5. Discharge port; 6. Heating assembly; 61. Heater; 62. Heating element; 63. Temperature controller; 64. Insulation layer; 7. Support column; 8. Drive assembly; 81. Servo motor; 9. Dust suction pipe; 10. Negative pressure pump; 11. Dust suction port; 12. Check valve; 13. Exhaust port; 14. Removable sealing cover. Detailed Implementation
[0030] The present invention will be further described in detail below with reference to the accompanying drawings. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," "lower," "bottom," and "top" used in the following description refer to directions in the accompanying drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.
[0031] This utility model discloses a desulfurization ash drying device, such as Figures 1 to 3 As shown, the device includes a drum 1, which is made of heat-resistant material to improve its high-temperature resistance and ensure the safety of the drying process. Inside the drum 1, there is a drying assembly 2 for drying desulfurization ash. The drying assembly 2 includes a rotating shaft 21 fixed inside the drum 1, and a rotating plate 22 fixed on the rotating shaft 21. The rotating plate 22 can be made of metal or other materials that do not allow the wet desulfurization ash to adhere. A brush head 23 is fixed on the rotating shaft 21, and the brush head 23 is provided with bristles. A drive assembly 8 is provided at one end of the rotating shaft 21. The drive assembly 8 includes a servo motor 81 horizontally fixed to one end of the drum 1, and the output shaft of the servo motor 81 is fixed to one end of the rotating shaft 21.
[0032] A feeding device 3 is provided at one end of the drum 1. The feeding device 3 includes a feeding funnel 31 that is vertically fixed to the top of the drum 1. By setting the feeding funnel 31, the desulfurization ash to be dried can be conveniently added into the drum 1, avoiding spillage and waste during the feeding process. A feeding pipe 32 is provided at the bottom of the feeding funnel 31, and the feeding pipe 32 is connected to the top of the drum 1. A discharge pipe 4 is provided at the end of the drum 1 furthest from the feeding device 3. A discharge port 5 is provided on the discharge pipe 4. A suction pipe 9 is connected to one side of the discharge pipe 4. The suction pipe 9 is installed on the outside of the drum 1 and is equipped with a negative pressure pump 10. The negative pressure pump 10 works with the suction pipe 9 to suck up the dried desulfurization ash inside the drum 1. Simultaneously, the negative pressure pump 10 can absorb water vapor from solids or liquids, which can be used to dry the drum 1. Multiple suction ports 11 are connected to one side of the suction pipe 9. Sealable filters can be installed on the suction ports 11 to prevent some of the damp desulfurization ash from entering the suction ports 11 during the drying process. The suction ports 11 are located inside the drum 1. A check valve 12 is provided on the discharge pipe 4 to control the unidirectional flow of the desulfurization ash.
[0033] A heating component 6 for heating the inside of the drum 1 is provided on the outside of the drum 1. The heating component 6 includes a heater 61 horizontally fixed to the outside of the drum 1. Multiple heating elements 62 are provided on the inner wall of the drum 1. The heater 61 is connected to the heating elements 62. The heating elements 62 are electric heating elements. A temperature controller 63 is provided on the heater 61. The temperature inside the drying drum can be monitored in real time by the temperature controller 63. The controller controls the heating power of the heating component 6 according to the detected temperature signal, thereby achieving precise control of the drying process. A heat insulation layer 64 is provided on the inner wall of the drum 1. The heat insulation layer 64 can effectively reduce the heat loss of the drying drum and improve the utilization rate of heat energy and drying efficiency.
[0034] The top of the drum 1 is equipped with an exhaust port 13, which is fitted with a removable sealing cover 14. The exhaust port 13 is used to discharge the waste gas and moisture generated inside the drum 1. The exhaust port 13 also discharges dust and harmful substances from the discharged moisture and waste gas, thus protecting the environment and improving the safety of the drying process. The bottom of the drum 1 is equipped with multiple support columns 7, which together support the drum 1.
[0035] Working principle: The desulfurization ash drying device designed in this utility model mainly dries the desulfurization ash through heating component 6 and drying component 2. Heating component 6 is mainly connected to heating element 62 through heater 61. Heating element 62 converts electrical energy into heat energy to heat the inside of drum 1. Then, the rotating shaft 21 inside drum 1 drives the rotating rod to lift the desulfurization ash. During the lifting process, the high temperature dries the moist desulfurization ash. Therefore, the desulfurization ash drying device designed in this utility model can fully dry the desulfurization ash by utilizing heating component 6 and drying component 2 inside drum 1.
[0036] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A desulfurization ash drying device, characterized in that: The device includes a drum (1), a drying assembly (2) for drying desulfurization ash is provided inside the drum (1), a feeding device (3) is provided at one end of the drum (1), a discharge pipe (4) is provided at the end of the drum (1) away from the feeding device (3), a discharge port (5) is provided on the discharge pipe (4), a heating assembly (6) for heating the inside of the drum (1) is provided on the outside of the drum (1), and a plurality of support columns (7) are provided at the bottom of the drum (1), the plurality of support columns (7) together support the drum (1), and the drying assembly (2) includes a rotating shaft fixedly connected inside the drum (1). (21) A rotating plate (22) is fixedly connected to the rotating shaft (21), a brush head (23) is fixedly connected to the rotating shaft (21), a drive assembly (8) is provided at one end of the rotating shaft (21), the heating assembly (6) includes a heater (61) fixedly connected to the outside of the drum (1), a plurality of heating elements (62) are provided on the inner wall of the drum (1), the heater (61) is connected to the heating elements (62), the heating elements (62) are electric heating elements (62), a temperature controller (63) is provided on the heater (61), and a heat insulation layer (64) is provided on the inner wall of the drum (1).
2. The desulfurization ash drying device according to claim 1, characterized in that: The feeding device (3) includes a feeding funnel (31) fixed to the top of the drum (1), and a feeding pipe (32) is provided at the bottom of the feeding funnel (31), which is connected to the top of the drum (1).
3. The desulfurization ash drying device according to claim 1, characterized in that: The drive assembly (8) includes a servo motor (81) fixed to one end of the roller (1), and the output shaft of the servo motor (81) is fixed to one end of the rotating shaft (21).
4. The desulfurization ash drying device according to claim 1, characterized in that: The discharge pipe (4) is connected to a suction pipe (9) on one side. The suction pipe (9) is installed on the outside of the drum (1). A negative pressure pump (10) is installed on the suction pipe (9). Multiple suction ports (11) are connected to one side of the suction pipe (9). The suction ports (11) are located inside the drum (1).
5. The desulfurization ash drying device according to claim 1, characterized in that: A check valve (12) is provided on the discharge pipe (4), and the check valve (12) is used to control the unidirectional flow of desulfurization ash.
6. The desulfurization ash drying device according to claim 1, characterized in that: The top of the roller (1) is provided with an exhaust port (13), and the exhaust port (13) is provided with a removable sealing cover (14). The exhaust port (13) is used to discharge the waste gas and moisture generated inside the roller (1).