Spray drying device for protein powder production
By setting up a liftable scraper and vibrating screen in the spray drying device for protein powder production, the problems of hopper blockage and wall hanging are solved, and an efficient protein powder drying process is achieved.
Patent Information
- Application Number
- CN202422277902.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-19
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-19
AI Technical Summary
During the drying process of protein powder, the condensed powder is likely to form large pieces in the hopper, resulting in the outlet blockage, and the powder adsorbs on the interior wall of the drying room to form a wall hanging phenomenon, affecting the drying efficiency.
A liftable ring scraper is installed in the drying room to clean the crystals on the inner wall, and a vibrating screen is installed at the bottom of the hopper to crush the agglomerated protein powder to avoid clogging.
Improve the drying efficiency of protein powder, prevent the hopper from being blocked, and ensure the continuity and efficient operation of the drying process.
Smart Images
Figure CN223127268U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of protein powder production equipment, and particularly relates to a spray drying device for protein powder production. Background Art
[0002] A spray dryer is a device that can simultaneously complete drying and granulation. According to process requirements, the pressure, flow rate of the feed liquid pump, and the size of the spray holes can be adjusted to obtain spherical particles with a required size ratio. Specifically, air is filtered and heated, and the hot air enters the drying chamber evenly in a spiral shape. The feed liquid forms extremely fine mist droplets through a high-speed centrifugal atomizer at the top of the tower body and contacts the hot air in a co-current manner, and can be dried into finished products in a very short time.
[0003] However, during the drying process of protein powder, a part of the condensed powder falls into the bottom hopper. The protein powder falling into the hopper forms large blocks under the adhesion of the atomized liquid, which is likely to cause blockage at the outlet and affect the separation of protein powder by the cyclone separator. There is also a small part that will adhere to the inner wall of the drying chamber under the condensation of the atomized liquid, forming a wall hanging phenomenon. It is necessary to clean the protein powder condensed on the inner wall of the drying chamber in time. Content of the Utility Model
[0004] The technical problem to be solved by the utility model is to provide a spray drying device for protein powder production, which can clean the protein powder adsorbed on the inner wall of the drying chamber, and perform crushing treatment on the protein powder at the discharge port to ensure the drying efficiency.
[0005] To solve the above technical problems, the technical solutions adopted by the utility model are as follows.
[0006] A spray drying device for protein powder production includes a drying chamber, and an air inlet pipe is connected to the top of the drying chamber; an atomization assembly is installed at the center of the top cover of the drying chamber; a ring-shaped scraper is installed at the bottom of the top cover inside the drying chamber, and the ring-shaped scraper is connected to a winding assembly arranged inside the drying chamber; a conical hopper is arranged at the bottom of the drying chamber, and a vibrating sieve mesh is arranged at the bottom of the conical hopper, and the other end of the vibrating sieve mesh is communicated with a collection box.
[0007] In the above spray drying device for protein powder production, the winding assembly includes winding devices symmetrically arranged inside the drying chamber, and the winding ropes inside the winding devices pass through the bottom of the top cover and are connected to the top end of the scraper.
[0008] In the above spray drying device for protein powder production, the atomization assembly includes a liquid inlet pipe arranged on the top of the top cover, and a plurality of atomizing nozzles in a disc shape and evenly distributed are arranged at the liquid outlet end of the liquid inlet pipe.
[0009] In the above spray drying device for protein powder production, the air inlet pipe is connected to a cross-flow fan.
[0010] In the above spray drying device for protein powder production, an annular heating sheet is arranged in the inner cavity of the side wall of the drying chamber.
[0011] Due to the adoption of the above technical solutions, the technical progress achieved by the present utility model is as follows.
[0012] The present utility model provides a spray drying device for protein powder production. By arranging a liftable annular scraper inside the drying chamber to clean the crystals on the inner wall of the drying chamber, and at the same time, by arranging a vibrating sieve mesh at the bottom end of the hopper at the bottom of the drying chamber to crush the agglomerated protein powder, the blockage of the hopper is avoided and the drying efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic structural diagram of the specific structure of the present utility model;
[0014] Figure 2 It is a schematic structural diagram of the specific connection between the scraper and the winding device of the present utility model.
[0015] Wherein: 1. drying chamber, 2. top cover, 3. air inlet pipe, 4. cross-flow fan, 5. liquid inlet pipe, 6. atomizing nozzle, 7. scraper, 8. hopper, 9. vibrating sieve mesh, 10. collection box, 11. winding device, 12. winding rope. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0016] The present utility model will be further described in detail below in conjunction with the drawings and specific embodiments.
[0017] A spray drying device for protein powder production, as Figures 1 to 2 , includes a drying chamber 1. An air inlet pipe 3 is communicated with the top of the drying chamber 1. An atomizing assembly is installed at the center of the top cover 2 of the drying chamber 1. An annular scraper 7 is installed at the bottom of the top cover 2 inside the drying chamber 1. The annular scraper 7 is connected with a winding assembly arranged inside the drying chamber 1, and can control the up and down movement of the scraper 7 to clean the inner wall of the drying chamber 1. A conical hopper 8 is arranged at the bottom of the drying chamber 1. A vibrating sieve mesh 9 is arranged at the bottom of the conical hopper 8, and the other end of the vibrating sieve mesh 9 is communicated with a collection box 10.
[0018] The winding assembly includes winding devices 11 symmetrically arranged inside the drying chamber 1. The winding ropes 12 inside the winding devices pass through the bottom of the top cover 2 and are connected to the top end of the scraper 7.
[0019] The atomizing assembly includes a liquid inlet pipe 5 arranged on the top of the top cover 2. The liquid outlet end of the liquid inlet pipe 5 is provided with a plurality of atomizing nozzles 6 which are in a disc shape and evenly distributed.
[0020] The air inlet pipe 3 is connected with a cross-flow fan 4, which can ensure the stability and uniformity of air supply.
[0021] An annular heating sheet is arranged in the inner cavity of the side wall of the drying chamber 1, which can heat the air inside the drying chamber to ensure that the atomized liquid can react with the uniform and stable hot air.
[0022] During use, the air is sent into the drying chamber through the air inlet pipe 3 by the cross-flow fan 4 for preheating. Then, the protein liquid is atomized through the liquid inlet pipe 5 and the atomizing nozzle 6 and reacts with the heated air in the drying chamber. The generated protein powder falls into the lower hopper and is crushed by the vibrating sieve mesh 9 and then falls into the lower collection box 10.
[0023] After the reaction is completed, the scraper 7 is driven by the winder 11 to move up and down to scrape the lumpy protein powder condensed inside the drying chamber 1, and is crushed by the vibrating sieve mesh.
[0024] The utility model provides a spray drying device for producing protein powder. The inner wall of the drying chamber is cleaned by arranging a liftable annular scraper inside the drying chamber. At the same time, the vibrating sieve mesh is arranged at the bottom end of the hopper at the bottom of the drying chamber to crush the lumped protein powder, avoiding the blockage of the hopper and improving the drying efficiency.
Claims
1. A spray drying device for producing protein powder, characterized in that: It includes a drying chamber (1), and an air inlet pipe (3) is connected to the top of the drying chamber (1); a atomizing assembly is installed at the center of the top cover (2) of the drying chamber (1); a ring-shaped scraper (7) is installed at the bottom of the top cover (2) inside the drying chamber (1), and the ring-shaped scraper (7) is connected to a winding assembly arranged inside the drying chamber (1); a conical hopper (8) is arranged at the bottom of the drying chamber (1), a vibrating sieve mesh (9) is arranged at the bottom of the conical hopper (8), and the other end of the vibrating sieve mesh (9) is communicated with a collection box (10).
2. The spray drying device for producing protein powder according to claim 1, wherein: The winding assembly includes winding devices (11) symmetrically arranged inside the drying chamber (1), and the winding ropes (12) inside the winding devices pass through the bottom of the top cover (2) and are connected to the top ends of the scrapers (7).
3. The spray drying device for producing protein powder according to claim 1, characterized in that: The atomizing assembly includes a liquid inlet pipe (5) arranged on the top of the top cover (2), and a plurality of atomizing nozzles (6) which are disc-shaped and evenly distributed are arranged at the liquid outlet end of the liquid inlet pipe (5).
4. A spray drying device for producing protein powder according to claim 1, characterized in that: The air inlet pipe (3) is connected to a cross-flow fan (4).
5. A spray drying device for producing protein powder according to claim 1, characterized in that: An annular heating sheet is arranged in the inner cavity of the side wall of the drying chamber (1).