Spray drying device for milk powder

Abstract

The utility model relates to the technical field of milk powder processing, and discloses a spray drying device for milk powder, which comprises an anti-sticking component, a spray drying component and a spray drying component, the rotating ring is slidably connected to the inner side wall of the fixed ring; the tooth block is fixedly connected to the front side of the rotating ring; the bottom plate is arranged on the inner side wall of the fixing ring; the sliding rods are symmetrically arranged at the top of the bottom plate, and through holes allowing the sliding rods to move are formed in the rotating rings; one end of the connecting rod is hinged to the inner side wall of the swivel; the top of the control block is hinged to the other end of the connecting rod; the rotating shaft penetrates through and is rotationally connected to the control block, and the bottom end of the rotating shaft is fixedly connected with the pipe body; the driving mechanism is arranged at the top of the drying tank. The milk powder which is not dried in time is large in viscosity, the situation that feeding is too much at a time and heat in the drying tank cannot dry the milk at each position in time is prevented by controlling the feeding speed, and therefore the rotating angle of the control block is controlled by controlling the rotating direction and the rotating angle of the double-shaft motor, and the flow of the milk passing through the control block is adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of milk powder processing, in particular to a spray drying device for milk powder. Background Art

[0002] Spray drying of milk powder is a process of spraying milk powder for drying according to demand. The main purpose of this drying process is to subdivide the milk powder into tiny particles, quickly remove moisture during the drying process, and keep the milk powder dry and stable for a long time. The spray drying process of milk powder generally includes the following steps: Spraying: Spraying liquid milk powder into tiny particles through a sprayer, usually using a high-speed centrifugal sprayer or a pressure sprayer. Drying: The sprayed milk powder particles are exposed to hot air, and the water evaporates rapidly to gradually dry the milk powder particles. Separation: During the drying process, the milk powder particles gradually separate from the hot air through the action of centrifugal force and airflow to form dry milk powder particles. Collection: The dried milk powder particles are collected by a collection device, and common collection equipment includes a cyclone separator, an electrostatic collector, etc.

[0003] During the process of spray drying of milk powder, the milk powder is affected by many factors, such as too much milk powder fed at one time, low hot air temperature, and some milk powder fails to dry in time. The moist milk powder is sticky and easily adheres to the inner wall of the drying tank, the atomizer nozzle and the hot air duct, causing blockage, resulting in waste of raw materials and inconvenience in cleaning. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the shortcomings of the prior art, the utility model provides a spray drying device for milk powder, which has the advantage of alleviating the adhesion of milk powder to the wall, and solves the problem that milk powder is easily adhered to the inner wall of the drying chamber and drying components due to its high viscosity after failing to dry in time, causing blockage and wasting raw materials.

[0006] (II) Technical solution

[0007] To achieve the above object, the utility model provides the following technical solution: a spray drying device for milk powder, comprising a main body component, the main body component comprising:

[0008] A drying tank, the top of which is provided with a tube body;

[0009] A feed inlet, connected through the top of the tube body;

[0010] An atomizing head is connected through the bottom of the tube body;

[0011] A hot air pipe is connected to the top of the drying tank;

[0012] An air outlet pipe is connected to the top of the drying tank;

[0013] The drying tank and the tube body are provided with an anti-sticking component, and the anti-sticking component comprises:

[0014] A fixing ring, arranged outside the tube body;

[0015] A rotating ring, slidably connected to the inner side wall of the fixed ring;

[0016] A gear block, fixedly connected to the front side of the swivel;

[0017] A bottom plate, on which the inner side wall of the fixing ring is arranged;

[0018] A slide bar is symmetrically arranged on the top of the bottom plate, and a through hole is provided on the rotating ring for the slide bar to move;

[0019] A connecting rod, one end of which is hinged to the inner side wall of the swivel;

[0020] A control block, the top of which is hinged to the other end of the connecting rod;

[0021] A rotating shaft, which penetrates and is rotatably connected to the control block, and a bottom end of the rotating shaft is fixedly connected to the tube body;

[0022] The driving mechanism is arranged on the top of the drying tank.

[0023] Preferably, the driving mechanism comprises:

[0024] A bracket, arranged on the outer side wall of the tube body;

[0025] A dual-axis motor, fixedly connected to the bracket;

[0026] Gear 1 is fixedly connected to the top output shaft of the dual-axis motor and meshes with the gear block.

[0027] Preferably, a sensor is provided on the inner wall of the hot air duct, and the sensor is electrically connected to the dual-axis motor.

[0028] Preferably, the drying tank and the dual-axis motor are provided with a scraping assembly, and the scraping assembly comprises:

[0029] Gear 2, fixedly connected to the bottom output shaft of the dual-axis motor;

[0030] A turntable, which penetrates through and is rotatably connected to the top of the drying tank;

[0031] A rack, disposed on the inner wall of the rotating disk and meshing with the second gear;

[0032] A rotating rod, arranged at the bottom of the rotating disk;

[0033] The scraper is arranged outside the rotating rod.

[0034] Preferably, a liquid filter is connected through the tube body.

[0035] Preferably, a sealing ring is provided at the rotation connection between the turntable and the drying tank.

[0036] (III) Beneficial effects

[0037] Compared with the prior art, the utility model provides a spray drying device for milk powder, which has the following

[0038] Beneficial effects:

[0039] The drying device has the advantage of alleviating the adhesion of milk powder to the wall. The milk powder that is not dried in time has a large viscosity. By controlling the feeding speed to prevent excessive feeding at one time, the heat in the drying tank cannot dry the emulsion in every place in time. Therefore, the double-axis motor in the driving mechanism is started, and the gear 1 on the double-axis motor rotates counterclockwise, and the tooth block meshing with the gear 1 rotates clockwise. The tooth block drives the connected rotating ring to rotate clockwise on the inner wall of the fixed ring. When the rotating ring rotates, the sliding rod on the bottom plate slides in the through hole on the rotating ring, and the connecting rod drives the control block to rotate along the rotating shaft. At this time, multiple control blocks are rotated and opened, and the gaps between the control blocks become larger, so that the emulsion flow rate that can pass through the tube body becomes larger. Similarly, the double-axis motor is driven in the reverse direction to reduce the emulsion flow rate through the tube body, which solves the problem that the milk powder is not dried in time and is easy to adhere to the inner wall of the drying chamber and the drying components due to its large viscosity, causing blockage and waste of raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a schematic diagram of the structure of the utility model;

[0041] Figure 2 It is a schematic diagram of the structure of the anti-sticking component in the utility model;

[0042] Figure 3 It is a schematic diagram of the rotation structure of the control block in the utility model;

[0043] Figure 4 It is a schematic diagram of the explosion structure of the anti-sticking component in the utility model;

[0044] Figure 5 It is a schematic diagram of the cross-sectional structure of the drying tank in the utility model.

[0045] In the figure:

[0046] 1. Main assembly; 11. Drying tank; 12. Feed inlet; 13. Tube body; 131. Atomizing head; 14. Hot air pipe; 15. Exhaust pipe;

[0047] 2. Anti-sticking assembly; 21. Fixed ring; 22. Rotating ring; 221. Connecting rod; 23. Gear block; 24. Bottom plate; 241. Sliding rod; 25. Control block; 251. Rotating shaft; 26. Driving mechanism; 261. Bracket; 262. Dual-axis motor; 263. Gear 1;

[0048] 3. Scraping assembly; 31. Gear 2; 32. Rotating plate; 33. Rack; 34. Rotating rod; 35. Scraper;

[0049] 4. Liquid filter; 5. Sensor; 6. Sealing ring. DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0051] Embodiment 1

[0052] See also Figure 1-5 A spray drying device for milk powder includes a main body component 1, which includes: a drying tank 11, a tube body 13 is provided on the top of the drying tank 11; a feed port 12 is connected to the top of the tube body 13; an atomizing head 131 is connected to the bottom of the tube body 13; a hot air pipe 14 is connected to the top of the drying tank 11; an air outlet pipe 15 is connected to the top of the drying tank 11; an anti-sticking component 2 is provided on the drying tank 11 and the tube body 13, and the anti-sticking component 2 includes: a fixing ring 21, which is provided outside the tube body 13; a rotating ring 22, which is slidably connected to the fixing ring The inner wall of the ring 21; the tooth block 23, fixedly connected to the front side of the rotating ring 22; the bottom plate 24, set the inner wall of the fixed ring 21; the slide rod 241, symmetrically set at the top of the bottom plate 24, the rotating ring 22 is provided with a through hole for the slide rod 241 to move; the connecting rod 221, one end of which is hinged to the inner wall of the rotating ring 22; the control block 25, the top of which is hinged to the other end of the connecting rod 221; the rotating shaft 251, which penetrates and is rotatably connected to the control block 25, and the bottom end of the rotating shaft 251 is fixedly connected to the tube body 13; the driving mechanism 26, which is set at the top of the drying tank 11. The driving mechanism 26 includes: a bracket 261, set on the outer wall of the tube body 13; a double-axis motor 262, fixedly connected to the bracket 261; a gear 263, fixedly connected to the top output shaft of the double-axis motor 262, and meshing with the tooth block 23. A sensor 5 is disposed on the inner wall of the hot air pipe 14 , and the sensor 5 is electrically connected to the dual-axis motor 262 .

[0053] When in use, the staff pours the emulsion into the drying tank 11 through the feed port 12 along with the tube body 13, the atomizing head 131 atomizes the emulsion, and the hot air pipe 14 transmits heat to the inside of the drying tank 11, so that the atomized emulsion can be dried quickly, and the water vapor generated by drying is discharged from the drying tank 11 through the air outlet pipe 15. In order to prevent the undried milk powder from adhering to the inner wall of the drying tank 11, the anti-sticking component 2 is processed: the milk powder that is not dried in time has a large viscosity, and the feeding speed is controlled to prevent excessive feeding at one time. The heat in the drying tank 11 cannot dry the emulsion in every place in time, so the double-axis motor 26 in the driving mechanism 26 is started. 2. The gear 1 263 on the double-axis motor 262 rotates counterclockwise, and the tooth block 23 meshing with the gear 1 263 rotates clockwise. The tooth block 23 drives the connected rotating ring 22 to rotate clockwise on the inner wall of the fixed ring 21. When the rotating ring 22 rotates, the slide bar 241 on the bottom plate 24 slides in the through hole on the rotating ring 22, and the connecting rod 221 drives the control block 25 to rotate along the rotating shaft 251. At this time, multiple control blocks 25 rotate and open, and the gaps between the control blocks 25 become larger, so that the emulsion flow rate through the tube body 13 becomes larger. Similarly, the double-axis motor 262 is driven in the reverse direction to reduce the emulsion flow rate through the tube body 13 to prevent excessive feeding. The sensor 5 is a gas sensor 5, which monitors the air flow in the hot air pipe 14. When the hot air pipe 14 transports hot air into the drying tank 11, due to the effect of negative pressure, the undried milk powder is easy to block the hot air pipe 14. At this time, the air flow that can pass through becomes smaller. At this time, the sensor 5 sends an electrical signal to the dual-axis motor 262 to reduce the flow of the emulsion and alleviate the situation where the emulsion blocks the hot air pipe 14.

[0054] Embodiment 2

[0055] On the basis of the first embodiment, an auxiliary function is added.

[0056] See also Figure 1-5 The drying tank 11 and the double-axis motor 262 are provided with a scraping assembly 3, and the scraping assembly 3 includes: a second gear 31, fixedly connected to the bottom output shaft of the double-axis motor 262; a rotating disk 32, penetrating and rotatably connected to the top of the drying tank 11; a rack 33, arranged on the inner wall of the rotating disk 32 and meshing with the second gear 31; a rotating rod 34, arranged at the bottom of the rotating disk 32; and a scraper 35, arranged outside the rotating rod 34. The tube body 13 is connected with a liquid filter 4. A sealing ring 6 is arranged at the rotation connection between the rotating disk 32 and the drying tank 11.

[0057] When the emulsion is being dried, the scraping component 3 scrapes the dried milk powder adhering to the inner wall of the drying tank 11: when the dual-axis motor 262 is started, the gear 2 31 rotates accordingly, and the rack 33 meshing with the gear 2 31 drives the turntable 32 to rotate, and the rotating rod 34 at the bottom of the turntable 32 rotates, and the linkage scraper 35 scrapes the inner wall of the drying tank 11 to prevent the dried milk powder from adhering to the inner wall of the drying tank 11, reducing the subsequent cleaning pressure and preventing the waste of raw materials. The liquid filter 4 filters the emulsion entering the atomizing head 131 to prevent the emulsion from containing impurities and causing the atomizing head 131 to be blocked. The sealing ring 6 prevents the hot air from being lost along with the contact between the turntable 32 and the drying tank 11, and the heat is lost, which reduces the drying efficiency.

[0058] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A spray drying device for milk powder, comprising a main component (1), wherein the main component (1) comprises: A drying tank (11) having a tube body (13) extending through the top thereof; A feed port (12) is connected to the top of the tube body (13); An atomizing head (131) is connected through the bottom of the tube body (13); A hot air pipe (14) is connected to the top of the drying tank (11); An air outlet pipe (15) is connected to the top of the drying tank (11); The invention is characterized in that: the drying tank (11) and the tube body (13) are provided with an anti-sticking component (2), and the anti-sticking component (2) comprises: A fixing ring (21) is arranged outside the tube body (13); A rotating ring (22) is slidably connected to the inner wall of the fixed ring (21); A tooth block (23) fixedly connected to the front side of the rotating ring (22); A bottom plate (24) is provided on the inner side wall of the fixing ring (21); A slide bar (241) is symmetrically arranged on the top of the bottom plate (24), and a through hole is provided on the rotating ring (22) for the slide bar (241) to move; A connecting rod (221), one end of which is hinged to the inner wall of the rotating ring (22); A control block (25), the top of which is hinged to the other end of the connecting rod (221); A rotating shaft (251) penetrates through and is rotatably connected to the control block (25), and the bottom end of the rotating shaft (251) is fixedly connected to the tube body (13); The driving mechanism (26) is arranged on the top of the drying tank (11).

2. A spray drying device for milk powder according to claim 1, characterized in that: The driving mechanism (26) comprises: A bracket (261) is arranged on the outer wall of the tube body (13); A dual-axis motor (262) is fixedly connected to the bracket (261); Gear 1 (263) is fixedly connected to the top output shaft of the dual-axis motor (262) and meshes with the gear block (23).

3. A spray drying device for milk powder according to claim 2, characterized in that: A sensor (5) is provided on the inner wall of the hot air pipe (14), and the sensor (5) is electrically connected to the dual-axis motor (262).

4. A spray drying device for milk powder according to claim 3, characterized in that: The drying tank (11) and the dual-axis motor (262) are provided with a scraping assembly (3), and the scraping assembly (3) comprises: Gear 2 (31), fixedly connected to the bottom output shaft of the dual-shaft motor (262); A rotating disk (32) penetrates and is rotatably connected to the top of the drying tank (11); A rack (33) is disposed on the inner wall of the rotating disk (32) and meshes with the second gear (31); A rotating rod (34) is arranged at the bottom of the rotating disk (32); The scraper (35) is arranged outside the rotating rod (34).

5. A spray drying device for milk powder according to claim 4, characterized in that: The tube body (13) is connected through a liquid filter element (4).

6. A spray drying device for milk powder according to claim 5, characterized in that: A sealing ring (6) is provided at the rotation connection between the rotating disk (32) and the drying tank (11).

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