Energy-saving type slurry drying device
By preheating the slurry in the spray drying tower using a slurry heat exchanger, the problem of high energy consumption of the spray drying tower for ceramic powder making in the prior art is solved, and a more efficient slurry drying process is achieved.
Patent Information
- Application Number
- CN202420938765.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-04-30
AI Technical Summary
The existing spray drying towers for ceramic powder making have high energy consumption and require an energy-saving mud drying device.
By preheating the slurry by using a mud heat exchanger to preheat the slurry by a mud heat exchanger, the preheated slurry is then transported to an atomizing spray gun and sprayed into the spray drying tower for drying.
Reduces energy consumption and improves the efficiency of the mud drying process.
Smart Images
Figure CN222427161U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an energy-saving mud drying device, belonging to the field of ceramic production equipment. Background Art
[0002] The powder obtained by the spray drying device, such as ceramic powder, has the characteristics of fineness and stable moisture content, which ensures that the internal stress of the ceramic product is relatively uniform. Therefore, the spray drying device is one of the necessary equipment in the current ceramic production process. Its performance directly affects the output and quality of the powder, is related to energy consumption and environmental protection, and has a profound impact on the quality and cost of the final product.
[0003] The existing spray drying towers for ceramic powder production are all mixed flow type, and their structure is mainly to set a hot air supply device, an exhaust device, a slurry atomization device and a powder outlet on a tower body. The tower air inlet of the hot air supply device is set at the top of the tower body, the exhaust port of the exhaust device is set on the middle and lower side wall of the tower body, the atomization gun of the slurry atomization device is set in the middle of the tower body, and the powder outlet is set at the bottom of the tower body. Its process characteristics are that the high-temperature hot air of the hot air supply device enters from the top of the tower, and the slurry is transported by a single main pipe of the slurry atomization device and sprayed upward from the middle of the tower body. The slurry first contacts with the high-temperature hot air, then flows down with the wind, gradually experiences the low-temperature hot air, and finally is discharged from the powder outlet. The above technology requires that the slurry be heated from room temperature and then dried into powder, which has the problem of high energy consumption.
[0004] Therefore, how to provide an energy-saving mud drying device is the research purpose of the utility model. Utility Model Content
[0005] In view of the deficiencies of the above-mentioned technologies, the utility model provides an energy-saving mud drying device, which uses the waste heat of the low-temperature hot air discharged from the spray drying tower to preheat the mud through a mud heat exchanger, and then transports the preheated mud to an atomizing spray gun and sprays it into the spray drying tower for drying, thereby reducing energy consumption.
[0006] In order to solve the existing technical problems, the technical solution adopted by the utility model is:
[0007] An energy-saving mud drying device, characterized in that it includes a spray drying tower, a dust collector, a hot air connecting pipe, an exhaust fan, a spray chamber and a mud transfer cylinder, the top of the spray drying tower is connected to a hot air inlet pipe, the lower part is connected to a hot air exhaust pipe, the middle part of the spray drying tower is also connected to a plurality of groups of atomizing spray guns, the atomizing spray guns are arranged along the circumference of the spray drying tower, the other end of the hot air exhaust pipe is connected to the dust collector, the other end of the dust collector is connected to the hot air connecting pipe, a mud heat exchanger is integrally provided in the middle part of the hot air connecting pipe, the other end of the hot air connecting pipe is connected to the exhaust fan, the other end of the exhaust fan is connected to the spray chamber, the mud transfer cylinder is arranged on one side of the spray chamber, and is connected to the mud heat exchanger and the atomizing spray gun through a mud pipe.
[0008] Furthermore, the mud heat exchanger is provided with an air inlet at the top and an air outlet at the bottom. The mud heat exchanger includes several groups of independent mud heat exchange tubes. One end of each group of mud heat exchange tubes is provided with a mud inlet and a cleaning water inlet, and the other end is provided with a mud outlet and a sewage outlet.
[0009] Furthermore, control valves are provided at the mud inlet, the cleaning water inlet, the mud outlet and the sewage outlet.
[0010] Furthermore, the mud inlet and the mud outlet of the mud heat exchange tube are connected to the mud transfer cylinder through mud pipes respectively.
[0011] Furthermore, the mud pipe between the atomizing spray gun and the mud transfer cylinder, and the mud pipe between the mud heat exchanger and the mud transfer cylinder are both provided with mud pumps.
[0012] Furthermore, a discharge port is provided on the top of the spray chamber.
[0013] The utility model has the beneficial effect that the waste heat of the low-temperature hot air discharged from the spray drying tower is used to preheat the mud through the mud heat exchanger, and then the preheated mud is transported to the atomizing spray gun and sprayed into the spray drying tower for drying, thereby reducing energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a structural schematic diagram of the utility model.
[0015] Figure 2 It is a structural schematic diagram of the utility model mud heat exchanger.
[0016] Figure 3 It is a partial structural schematic diagram of the mud heat exchange tube of the utility model.
[0017] Figure 4 This utility model Figure 3 A magnified view of the structure at center.
[0018] Figure 5 This utility model Figure 3 A magnified view of the structure at point B.
[0019] Among them: spray drying tower 1, dust collector 2, hot air connecting pipe 3, exhaust fan 4, spray chamber 5, mud transfer cylinder 6, hot air inlet pipe 7, hot air exhaust pipe 8, atomizing spray gun 9, mud heat exchanger 10, air inlet 11, air outlet 12, mud heat exchange pipe 13, mud inlet 14, cleaning water inlet 15, mud outlet 16, sewage outlet 17, control valve 18, mud pump 19, discharge outlet 20. DETAILED DESCRIPTION
[0020] In order to make those skilled in the art better understand the technical solution of the utility model, the following Figure 1-5 The utility model is further analyzed.
[0021] like Figure 1-5 As shown, an energy-saving mud drying device is characterized in that it includes a spray drying tower 1, a dust collector 2, a hot air connecting pipe 3, an exhaust fan 4, a spray chamber 5 and a mud transfer cylinder 6, the top of the spray drying tower 1 is connected to a hot air inlet pipe 7, and the lower part is connected to a hot air exhaust pipe 8, and the middle part of the spray drying tower 1 is also connected to a plurality of groups of atomizing spray guns 9, and the atomizing spray guns 9 are arranged along the circumference of the spray drying tower 1, the other end of the hot air exhaust pipe 8 is connected to the dust collector 2, and the other end of the dust collector 2 is connected to the hot air connecting pipe 3, a mud heat exchanger 10 is integrally provided in the middle part of the hot air connecting pipe 3, the other end of the hot air connecting pipe 3 is connected to the exhaust fan 4, and the other end of the exhaust fan 4 is connected to the spray chamber 5, and the mud transfer cylinder 6 is arranged on one side of the spray chamber 5, and is connected to the mud heat exchanger 10 and the atomizing spray gun 9 through a mud pipe.
[0022] In this embodiment, preferably, the mud heat exchanger 10 is provided with an air inlet 11 at the top and an air outlet 12 at the bottom. The mud heat exchanger 10 includes a plurality of groups of independent mud heat exchange tubes 13. Each group of mud heat exchange tubes 13 is provided with a mud inlet 14 and a cleaning water inlet 15 at one end, and a mud outlet 16 and a sewage outlet 17 at the other end.
[0023] In this embodiment, preferably, the mud inlet 14 , the cleaning water inlet 15 , the mud outlet 16 and the sewage outlet 17 are all provided with control valves 18 , and the control valves 18 control the cleaning water and mud to enter and flow out of the mud heat exchange pipe 13 .
[0024] When cleaning a group of mud heat exchange tubes 13, close the control valves of the mud inlet 14 and the mud outlet 19, and open the control valves of the cleaning water inlet 15 and the sewage outlet 16 at the same time, so that the cleaning water enters the mud heat exchange tubes 13 to flush them, thereby avoiding blockage of the mud heat exchange tubes 13. During continuous production, each group of mud heat exchange tubes 13 is cleaned in turn at intervals, and the entire group is cleaned during production change.
[0025] In this embodiment, preferably, the mud inlet 14 and the mud outlet 16 of the mud heat exchange pipe 13 are connected to the mud transfer cylinder 6 through mud pipes respectively.
[0026] In this embodiment, preferably, the mud pipe between the atomizing spray gun 9 and the mud transfer cylinder 6, and the mud pipe between the mud heat exchanger 10 and the mud transfer cylinder 6 are both provided with a mud pump 19, and the mud pump 19 provides power to transport the mud to the mud heat exchanger 10 and the atomizing spray gun 9.
[0027] In this embodiment, preferably, a discharge port 20 is provided at the top of the spray chamber 5, and the low-temperature hot air after heat exchange with the mud is discharged through the discharge port 20 after dust removal from the spray chamber 5, thereby reducing pollution to the environment.
[0028] When the utility model is used, the high-temperature hot air generated by the hot air furnace enters the spray drying tower 1 from the hot air inlet pipe 7, dries the mud sprayed from the atomizing spray gun 9, becomes low-temperature hot air and enters the dust collector 2 from the hot air exhaust pipe 8, enters the mud heat exchanger 10 through the hot air connecting pipe 3 after dust removal, exchanges heat with the mud in the mud heat exchange pipe 13, preheats the mud, and the preheated mud flows back to the mud transfer cylinder 6 through the mud pipe, and then is transported to the atomizing spray gun 9 through the mud pipe and the mud pump 19, and is sprayed into the spray drying tower 1 for secondary drying.
[0029] The technical solution provided by the present application is introduced in detail above. The principles and implementation methods of the present application are explained in this article using embodiments. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for general technicians in this field, according to the idea of the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.
Claims
1. An energy-saving mud drying device, characterized in that: The invention comprises a spray drying tower, a dust collector, a hot air connecting pipe, an exhaust fan, a spray chamber and a mud transfer cylinder. The top of the spray drying tower is connected with a hot air inlet pipe, the bottom is connected with a hot air exhaust pipe, the middle of the spray drying tower is also connected with a plurality of groups of atomizing spray guns, the atomizing spray guns are arranged along the circumference of the spray drying tower, the other end of the hot air exhaust pipe is connected with the dust collector, the other end of the dust collector is connected with the hot air connecting pipe, a mud heat exchanger is integrally provided in the middle of the hot air connecting pipe, the other end of the hot air connecting pipe is connected with the exhaust fan, the other end of the exhaust fan is connected with the spray chamber, the mud transfer cylinder is arranged on one side of the spray chamber, and is connected with the mud heat exchanger and the atomizing spray gun through a mud pipe.
2. An energy-saving mud drying device according to claim 1, characterized in that: The mud heat exchanger is provided with an air inlet at the top and an air outlet at the bottom. The mud heat exchanger includes a plurality of independent groups of mud heat exchange tubes. One end of each group of mud heat exchange tubes is provided with a mud inlet and a cleaning water inlet, and the other end is provided with a mud outlet and a sewage outlet.
3. An energy-saving mud drying device according to claim 2, characterized in that: The mud inlet, the cleaning water inlet, the mud outlet and the sewage outlet are all provided with control valves.
4. The energy-saving mud drying device according to claim 2 is characterized in that: The mud inlet and the mud outlet of the mud heat exchange pipe are connected to the mud transfer cylinder through mud pipes respectively.
5. The energy-saving mud drying device according to claim 1 is characterized in that: The mud pipe between the atomizing spray gun and the mud transfer cylinder, and the mud pipe between the mud heat exchanger and the mud transfer cylinder are both provided with mud pumps.
6. The energy-saving mud drying device according to claim 1, characterized in that: A discharge port is arranged on the top of the spray chamber.