A drying apparatus for the production of composite nano-nickel-based catalysts
By setting up a multi-layer drying hood and flow divider structure inside the drying tank, the problems of uneven drying and agglomeration in the production of nanocatalysts were solved, achieving uniform drying and efficient production of catalyst solutions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU FEIMA CATALYST CO LTD
- Filing Date
- 2025-07-24
- Publication Date
- 2026-07-31
AI Technical Summary
Existing drying equipment for nanocatalyst production is prone to causing material to accumulate and clump during the drying process, resulting in uneven drying.
The drying tank employs an upper drying hood, a lower drying hood, and a bottom drying hood installed sequentially from top to bottom. Combined with a flow divider and a heater, the drying uniformity is improved through multi-layer drying treatment, utilizing the uniform distribution and heating of hot air between each layer.
This method achieves uniform drying of the catalyst solution, avoids material accumulation and clumping, and improves drying effect and efficiency.
Smart Images
Figure CN224573227U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of catalyst production equipment, specifically a drying device for the production of composite nano-nickel-based catalysts. Background Technology
[0002] Composite nano-nickel-based catalysts are solid heterogeneous catalysts made by combining nickel as the main active component with other materials through nanotechnology. In the production of composite nano-nickel-based catalysts, a spray dryer is used for drying and discharging. The spray dryer pumps liquid material to an atomizer through a high-pressure pump to form tiny droplets (tens of micrometers in size). After contacting with hot air, the moisture evaporates instantly to obtain solid particles.
[0003] Existing drying devices for the production of nanocatalysts, such as the drying device for the production of nanocatalysts disclosed in publication number CN209893910U, although they have the advantage of overcoming the uneven drying caused by traditional oven heating and drying, this drying structure, which involves atomizing the material and spraying it onto the upper end of the drying roller and then scraping it off with a scraper, is prone to causing the material to accumulate and clump after drying. Therefore, we propose a drying device for the production of composite nano-nickel-based catalysts. Utility Model Content
[0004] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.
[0005] Therefore, the technical solution adopted by this utility model is as follows:
[0006] A drying apparatus for producing composite nano-nickel-based catalysts includes: a drying tank and a drying assembly; the drying tank includes a sprayer and a discharge pipe fixedly installed at its upper and lower ends, a feed pipe fixedly connected to the outer end of the sprayer, a material box fixedly installed at the bottom of the feed pipe, a conveying pump fixedly installed at the upper end of the feed pipe, and a control box fixedly installed at its outer end; the drying assembly includes an upper drying hood and a lower drying hood fixedly installed at their upper and lower ends inside the drying tank, an upper annular flow channel and a lower annular flow channel respectively opened inside the upper and lower drying hoods, an upper drying flow channel and a lower drying channel respectively opened on one side of the upper and lower annular flow channels, air outlets arranged on one side of both the upper and lower drying channels, a bottom drying hood fixedly installed at the lower part of the drying tank, and a bottom drying chamber opened inside the bottom drying hood.
[0007] Preferably, the outer end of the upper drying hood is also fixedly connected to a main air pipe, the outer end of the lower drying hood is also fixedly connected to a first branch air pipe, and one end of the first branch air pipe is fixedly connected to the main air pipe, the upper side of the bottom drying hood is also fixedly connected to a second branch air pipe, and one end of the second branch air pipe is fixedly connected to the first branch air pipe, and the lower side of the bottom drying hood is also fixedly connected to an exhaust pipe.
[0008] Preferably, a first diverter is fixedly installed on one side of the first bronchus, and a second diverter is fixedly installed on one side of the second bronchus.
[0009] Preferably, a heater is also fixedly installed at the bottom of the main air pipe, and a fan is also fixedly installed at one end of the heater.
[0010] Preferably, an upper guide cover is also fixedly installed on the upper part of the lower drying cover.
[0011] Preferably, a lower guide tube is also fixedly installed at the bottom of the bottom drying hood.
[0012] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:
[0013] 1. In this utility model, the upper drying hood, lower drying hood and bottom drying hood installed in the drying tank from top to bottom can respectively perform uniform drying of the catalyst solution that has just been atomized by the sprayer, uniform drying of the catalyst as it falls after being dried into particles, and uniform drying of the catalyst particles as they are guided by the inner wall of the bottom drying hood. Thus, by performing multi-layer drying treatment on the atomized solution in the drying tank, the uniform drying effect is improved.
[0014] 2. In this utility model, the first diverter installed between the main air pipe and the first branch pipe, and the second diverter installed between the first branch pipe and the second branch pipe, can also distribute the transported hot air to ensure the drying effect of the upper drying hood, the lower drying hood and the bottom drying hood. Attached Figure Description
[0015] Figure 1 This is an overall structural diagram of the present invention;
[0016] Figure 2 This is a side sectional view of the present invention;
[0017] Figure 3 This utility model Figure 2 Enlarged view of A in the middle;
[0018] Figure 4 This utility model Figure 2 A magnified view of B in the middle.
[0019] Figure label:
[0020] 100. Drying tank; 101. Sprayer; 102. Discharge pipe; 103. Feed pipe; 104. Material hopper; 105. Conveying pump; 106. Control box;
[0021] 200. Drying assembly; 201. Upper drying hood; 202. Lower drying hood; 203. Upper annular flow channel; 204. Lower annular flow channel; 205. Upper drying flow channel; 206. Lower drying flow channel; 207. Air outlet; 208. Bottom drying hood; 209. Bottom drying chamber; 210. Main air pipe; 211. First branch air pipe; 212. Second branch air pipe; 213. Exhaust pipe; 214. First flow divider; 215. Second flow divider; 216. Heater; 217. Fan; 218. Upper guide hood; 219. Lower guide cylinder. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.
[0023] The following describes, with reference to the accompanying drawings, some embodiments of a drying apparatus for the production of composite nano-nickel-based catalysts.
[0024] Example 1:
[0025] Combination Figure 1-4As shown, the present invention provides a drying device for the production of composite nano-nickel-based catalysts, comprising: a drying tank 100 and a drying assembly 200; the drying tank 100 includes a sprayer 101 and a discharge pipe 102 fixedly installed at its upper and lower ends respectively, a feed pipe 103 fixedly connected to the outer end of the sprayer 101, a material box 104 fixedly installed at the bottom of the feed pipe 103, a conveying pump 105 fixedly installed at the upper end of the feed pipe 103, and a control box 106 fixedly installed at its outer end; the drying assembly... 200 includes an upper drying hood 201 and a lower drying hood 202 fixedly installed at the upper and lower ends of the drying tank 100, respectively; an upper annular flow channel 203 and a lower annular flow channel 204 respectively opened in the upper drying hood 201 and the lower drying hood 202; an upper drying flow channel 205 and a lower drying flow channel 206 respectively opened on one side of the upper annular flow channel 203 and the lower annular flow channel 204; and air outlets 207 arranged on one side of both the upper drying flow channel 205 and the lower drying flow channel 206. The lower end of the drying tank 100... The bottom drying hood 208 is fixedly installed, and a bottom drying chamber 209 is opened inside the bottom drying hood 208. The outer end of the upper drying hood 201 is also fixedly connected to a main air pipe 210, and the outer end of the lower drying hood 202 is also fixedly connected to a first branch air pipe 211, with one end of the first branch air pipe 211 fixedly connected to the main air pipe 210. A second branch air pipe 212 is also fixedly connected to one side of the upper part of the bottom drying hood 208, with one end of the second branch air pipe 212 fixedly connected to the first branch air pipe 211. An exhaust pipe 213 is fixedly connected to one side of the lower part of 208. A first diverter 214 is fixedly installed on one side of the first branch pipe 211. A second diverter 215 is fixedly installed on one side of the second branch pipe 212. A heater 216 is fixedly installed at the bottom of the main pipe 210. A fan 217 is fixedly installed at one end of the heater 216. An upper guide hood 218 is fixedly installed on the upper part of the lower drying hood 202. A lower guide tube 219 is fixedly installed at the bottom of the lower drying hood 208.
[0026] Specifically, the composite nano-nickel-based catalyst is a solid heterogeneous catalyst made by combining nickel as the main active component with other materials through nanotechnology. In the production of the composite nano-nickel-based catalyst, a spray dryer pumps liquid material to an atomizer through a high-pressure pump, forming tiny droplets (tens of micrometers in size). Upon contact with hot air, the water evaporates instantly, resulting in solid particles. The upper drying hood 201, lower drying hood 202, and bottom drying hood 208 installed sequentially from top to bottom inside the drying tank 100 can respectively perform uniform drying of the catalyst solution just atomized by the sprayer 101, and the drying of the catalyst into particles before they fall. The uniform drying process, including the uniform drying of catalyst particles guided by the inner wall of the bottom drying hood 208, and further enhanced by multi-layer drying of the atomized solution in the drying tank 100, improves the uniform drying effect. The upper annular flow channel 203 and lower annular flow channel 204 in the upper drying hood 201 and lower drying hood 202 are mainly used for uniform dispersion after hot air is introduced, so that it can evenly reach the corresponding upper drying flow channel 205 and lower drying flow channel 206 at the inner end. Then, through the air outlet 207 arranged at the outer end of the upper drying flow channel 205 and lower drying flow channel 206, the atomized particles are uniformly dried. The bottom drying hood... The bottom drying chamber 209 within the bottom drying hood 208 has its inner wall heated by hot air, thus uniformly heating the catalyst particles as they slide down the inner wall of the bottom drying hood 208. The first diverter 214 between the main air pipe 210 and the first branch pipe 211 primarily guides some of the hot air from the main air pipe 210 into the first branch pipe 211. The second diverter 215 between the first branch pipe 211 and the second branch pipe 212 primarily guides some of the hot air from the first branch pipe 211 into the second diverter 215. The exhaust pipe 213 installed on one side of the bottom drying hood 208 is mainly used for the bottom drying chamber 209. The hot air is discharged after heating. The heater 216 and fan 217 connected to the bottom of the main air pipe 210 are mainly used for blowing in the hot air. The heater 216, fan 217, sprayer 101 and delivery pump 105 are all electrically connected to the control box 106. The upper guide cover 218 at the upper end of the lower drying hood 202 is mainly used to prevent the dried catalyst particles from accumulating at the upper end of the lower drying hood 202 and to guide them downward. The lower guide cylinder 219 fixedly installed at the bottom of the lower drying hood 208 is mainly used to guide the dried catalyst particles in the drying tank 100 and the dried hot air into the discharge pipe 102 for discharge.
[0027] Working principle and usage process of this utility model:
[0028] Before the catalyst is dried, the heater 216 and the blower 217 are started to deliver hot air into the main air pipe 210. The hot air is then distributed within the main air pipe 210 to the upper drying hood 201, the lower drying hood 202, and the bottom drying chamber 209. This allows the hot air to be blown out through multiple sets of air outlets 207 at the lower part of the upper drying hood 201 and the inner end of the lower drying hood 202, and the inner wall of the bottom drying hood 208 to be uniformly heated. After the hot air is introduced, the catalyst solution can be pumped through the sprayer by the delivery pump 105. The catalyst solution is atomized and sprayed into the drying tank 100. As it is atomized, it is uniformly heated by the hot air blown from the bottom of the upper drying hood 201. After the catalyst solution is dried into particles, it falls and is uniformly dried around the lower drying hood 202. As the catalyst particles fall to the inner wall of the bottom drying hood 208 and roll down, they are also heated by the inner wall of the bottom drying hood 208. Thus, through the multi-layer drying of the catalyst solution after atomization, the uniformity and drying effect of drying are improved.
[0029] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A composite nanonickel-based catalyst production drying device, characterized by, include: Drying tank (100), drying assembly (200); The drying tank (100) includes a sprayer (101) and a discharge pipe (102) fixedly installed at its upper and lower ends, a feed pipe (103) fixedly connected to the outer end of the sprayer (101), a material box (104) fixedly installed at the bottom of the feed pipe (103), a conveying pump (105) fixedly installed at the upper end of the feed pipe (103), and a control box (106) fixedly installed at its outer end. The drying assembly (200) includes an upper drying hood (201) and a lower drying hood (202) fixedly installed at the upper and lower ends of the drying tank (100), an upper annular flow channel (203) and a lower annular flow channel (204) respectively opened in the upper drying hood (201) and the lower drying hood (202), an upper drying flow channel (205) and a lower drying flow channel (206) respectively opened on one side of the upper annular flow channel (203) and the lower annular flow channel (204), and air outlets (207) arranged on one side of the upper drying flow channel (205) and the lower drying flow channel (206), a bottom drying hood (208) fixedly installed at the lower part of the drying tank (100), and a bottom drying chamber (209) opened in the bottom drying hood (208).
2. The drying device for producing a composite nano nickel-based catalyst according to claim 1, characterized in that, The upper drying hood (201) is also fixedly connected to the outer end of the main air pipe (210), the lower drying hood (202) is also fixedly connected to the outer end of the first branch air pipe (211), and one end of the first branch air pipe (211) is fixedly connected to the main air pipe (210). The lower drying hood (208) is also fixedly connected to the upper side of the second branch air pipe (212), and one end of the second branch air pipe (212) is fixedly connected to the first branch air pipe (211). The lower side of the lower drying hood (208) is also fixedly connected to the exhaust pipe (213).
3. The drying device for producing a composite nano nickel-based catalyst according to claim 2, characterized in that, A first diverter plate (214) is fixedly installed on one side of the first bronchus (211), and a second diverter plate (215) is fixedly installed on one side of the second bronchus (212).
4. The drying device for producing a composite nano nickel-based catalyst according to claim 2, characterized in that, A heater (216) is also fixedly installed at the bottom of the main air pipe (210), and a fan (217) is also fixedly installed at one end of the heater (216).
5. The drying device for producing a composite nano nickel-based catalyst according to claim 1, characterized in that, An upper guide cover (218) is also fixedly installed on the upper part of the lower drying cover (202).
6. The drying device for producing a composite nano nickel-based catalyst according to claim 1, characterized in that, The bottom of the bottom drying hood (208) is also fixedly installed with a lower guide tube (219).