A spray drying device for abalone collagen peptide

Abstract

The invention relates to the technical field of spray drying, and discloses a spray drying device for abalone collagen peptide. The device comprises: a frame and a drying tank arranged on the frame, a heating tank is fixed above the frame, a dry powder tank is fixed above the frame, and the device further comprises: a spiral channel provided in the drying tank; an air distribution hole provided in the drying tank, one side of the main air rectangular tube is connected to the spiral channel, and the other end is connected to the inside of the drying tank. The device cuts into the drying tank at a certain angle through a main air rectangular tube, so that hot air flowing in the drying tank forms a wind field spirally downward to form a hot air spiral rotating flow field; the air distribution hole cuts into the drying tank at a certain angle, so that hot air from the spiral channel and the air distribution hole spirals downward to form a spiral airflow field; the spiral airflow field is located between the inner wall of the drying tank and the hot air spiral rotating flow field, plays an isolation role, and prevents water mist in the hot air spiral rotating flow field from directly contacting the inner wall of the drying tank.

Description

Technical Field

[0001] The present invention relates to the technical field of spray drying, and in particular to a spray drying device for abalone collagen peptide. Background Art

[0002] As a highly efficient method for solid-liquid separation, spray drying technology is widely used in the food, pharmaceutical, and chemical industries, particularly in the drying process of bioactive ingredients. For example, abalone collagen peptides, due to their high heat sensitivity and high solution viscosity, face two major technical bottlenecks in traditional spray drying: first, material adhesion to the wall, resulting in poor quality and equipment cleaning; second, insufficient drying uniformity, leading to product particle size dispersion and loss of activity.

[0003] Existing spray drying equipment mostly uses a single spiral wind field or linear wind field design with a fixed airflow pattern, which makes it difficult to balance the requirements of wall anti-sticking and drying uniformity. Specifically, although the traditional spiral wind field can drive the material to rotate through centrifugal force, the continuous steady-state airflow easily causes high-viscosity droplets to form a weak adhesion layer on the tank wall. Especially when processing complex systems containing proteins and polysaccharides such as collagen peptides, the wall-adhering material may denature or carbonize due to local overheating, which not only affects product purity but also requires frequent shutdowns for cleaning, reducing production efficiency. On the other hand, in conventional drying processes, the contact path between hot air and droplets is single, and the heating time and airflow intensity of material particles in different areas vary significantly, resulting in a wide powder particle size distribution (CV values ​​often exceed 15%) and unstable active ingredient retention (for example, the peptide chain integrity of collagen peptides is easily affected by uneven drying). Summary of the Invention

[0004] The present invention provides a spray drying device for abalone collagen peptide, which effectively avoids the phenomenon of wall hanging.

[0005] In order to solve the above technical problems, the technical solutions of the present invention are as follows:

[0006] In a first aspect, a spray drying device for abalone collagen peptide comprises: a frame and a drying tank arranged on the frame, a heating tank is fixed above the frame, a dry powder tank is fixed above the frame, and further comprises:

[0007] A spiral channel is provided in the drying tank; an air distribution hole is provided in the drying tank, and one end of the hole is connected to the spiral channel, and the other end is connected to the drying tank, and is used to form an airflow spiraling downward in the wall of the drying tank to form a continuous spiral wind field to prevent the water mist from contacting the tank wall; an air control unit is fixed on the drying tank at one end and on the heating tank at the other end, and is used to divide the spiral channel into multiple sections to form a pulsed wind field, thereby preventing wall adhesion and improving drying uniformity through periodic airflow impact to adapt to various material characteristics; a heating element is fixed on the heating tank; a discharging element is fixed under the drying tank; a micro powder tube extends into the drying tank at one end and is fixed on the dry powder tank at the other end;

[0008] The main air rectangular tube is fixed on the heating tank at one end and on the drying tank at the other end; the auxiliary air cone tube is fixed on the heating tank at one end and on the drying tank at the other end, and is connected to the spiral channel; the air control cone tube is fixed on the heating tank at one end and on the drying tank at the other end, and is connected to the spiral channel and is located below the auxiliary air cone tube; the fixing ring is fixed in the spiral channel; the air control ring frame is slidably set on the fixing ring and is located in the air control cone tube; the closing curved plate is slidably set in the spiral channel and fixed to the air control ring frame;

[0009] Atomizer, fixed in the drying tank.

[0010] Furthermore, the wind control component further includes:

[0011] The first fan is fixed on the heating tank, and the working end is fixed on the main air rectangular tube; the second fan is fixed on the drying tank, and the working end is fixed on the auxiliary air cone tube; the third fan is fixed on the drying tank, and the working end is fixed on the air control cone tube.

[0012] Furthermore, the wind control component further includes:

[0013] The wind control motor is fixed on the drying tank; the valve plate is rotatably set in the wind control cone tube, and the valve shaft is fixed on the wind control motor; one end of the return spring is fixed on the fixed ring, and the other end is fixed on the wind control ring frame; the displacement plate is fixed on the wind control ring frame.

[0014] Furthermore, the wind control component further includes:

[0015] One end of the air filter pipe is fixed on the heating tank, and the other end is fixed under the drying tank; the fourth fan is fixed on the heating tank, and the working end is fixed on the air filter pipe; the air filter channel is opened under the drying tank and is connected to the air filter pipe; the air filter hole is opened in the drying tank and is connected to the air filter channel and the inside of the drying tank.

[0016] Furthermore, the heating element includes:

[0017] The air inlet box is fixed below the heating tank; the air filter plate is fixed on the end away from the heating tank; the limit plate is fixed in the air inlet box; the closing cover is fixed above the air inlet box; the filter core plate is slidably arranged in the air inlet box.

[0018] Furthermore, the heating element further comprises:

[0019] The first heating tube is fixed at the bottom of the heating tank; the second heating tube is fixed at the top of the heating tank; the third heating tube is fixed in the main wind rectangular tube; the fourth heating tube is fixed in the wind control cone tube; there are multiple thermostats, and the multiple thermostats are respectively fixed on the first heating tube, the second heating tube, the third heating tube and the fourth heating tube, and the multiple thermostats are fixed on the heating tank, the main wind rectangular tube and the wind control cone tube.

[0020] Furthermore, the discharging part includes:

[0021] The coarse material pipe is fixed under the drying tank; the grinding mill is fixed under the coarse material pipe; and the discharge pipe is fixed on the grinding mill.

[0022] Furthermore, the discharging member further comprises:

[0023] The discharge motor has a base fixed on the grinding mill; the discharge rod is rotatably set on the coarse material pipe and fixed on the discharge motor; the spiral blade is fixed on the discharge rod and located in the coarse material pipe; the support plate is fixed in the coarse material pipe and rotatably sleeved on the discharge rod.

[0024] Furthermore, a vibrator is fixedly provided below the drying tank, an exhaust pipe is fixed above the dry powder tank, and a powder exhaust pipe is fixed below the dry powder tank.

[0025] Furthermore, a liquid material pipe is fixed above the atomizer, a feed pump is fixed to the liquid material pipe, and a pump seat of the feed pump is fixed on the drying tank.

[0026] The above solution of the present invention includes at least the following beneficial effects:

[0027] The present invention cuts into the drying tank at a certain angle through the main wind rectangular tube, and the hot air flowing in the drying tank forms a spiral downward wind field to form a hot air spiral rotating flow field; the branch air hole cuts into the drying tank at a certain angle, and the hot air in the spiral channel and the branch air hole spirals downward to form a spiral airflow field; the spiral airflow field is located between the inner wall of the drying tank and the hot air spiral rotating flow field, playing an isolation role, and preventing water mist in the hot air spiral rotating flow field from directly contacting the inner wall of the drying tank; the flow rate of the spiral airflow field is lower than the flow rate of the hot air spiral rotating flow field, and the flow rate of the spiral airflow field is used to offset the centrifugal force of the water mist, ensuring that the water mist does not move to the tank wall of the drying tank due to centrifugal action; the hot air spiral rotating flow field gradually moves downward, and the temperature gradually decreases, resulting in water mist that has not yet been completely dried; while the spiral airflow field isolates the water mist, the heat it carries increases the temperature of the contact area between the spiral airflow field and the hot air spiral rotating flow field, and continuously and effectively evaporates the water mist that has not yet been completely dried.

[0028] The present invention controls the movement of the air control ring frame and the closed curved plate by controlling the opening of the air control motor and the valve plate, and divides the spiral channel into multiple sections through the closed curved plate; then hot air is provided by the second fan and the third fan; the spiral channel is divided into multiple sections to form a pulse wind field, thereby preventing wall hanging and improving drying uniformity to adapt to various material characteristics through periodic airflow impact; the air control motor is started again to drive the valve plate to reset, and the reset spring drives the air control ring frame and the closed curved plate to reset, and the spiral channel is no longer segmented at this time. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram of the overall structure of a spray drying device for abalone collagen peptide provided in an embodiment of the present invention;

[0030] Figure 2 A cross-sectional view of a drying tank of a spray drying device for abalone collagen peptide provided in an embodiment of the present invention;

[0031] Figure 3 A spray drying device for abalone collagen peptide provided by an embodiment of the present invention Figure 2 A magnified view of point A;

[0032] Figure 4 A spray drying device for abalone collagen peptide provided by an embodiment of the present invention Figure 2 Enlarged view of point B;

[0033] Figure 5 A top view of a cross-section of a main air rectangular tube of a spray drying device for abalone collagen peptide provided in an embodiment of the present invention;

[0034] Figure 6 A schematic structural diagram of a displacement plate of a spray drying device for abalone collagen peptide provided in an embodiment of the present invention;

[0035] Figure 7 A schematic structural diagram of an air control ring frame of a spray drying device for abalone collagen peptide provided in an embodiment of the present invention.

[0036] Description of reference numerals:

[0037] In the figure: 1. Drying tank; 2. Heating tank; 3. Dry powder tank; 4. Spiral channel; 5. Air distribution hole; 6. Air control unit; 601. Main air rectangular tube; 602. Auxiliary air cone tube; 603. Air control cone tube; 604. Fixing ring; 605. Air control ring frame; 606. Closing curved plate; 607. First fan; 608. Second fan; 609. Third fan; 6010. Air control motor; 6011. Valve plate; 6012. Return spring; 6013. Displacement plate; 6014. Air filter tube; 6015. Fourth fan; 6016. Air filter channel; 6017. Air filter hole; 7. Heating element; 701. Air inlet box; 702. Air filter plate; 703. Limit plate; 704. Closing cover; 705. Filter core plate; 706. First heating tube; 707. Second heating tube; 708. Third heating tube; 709. Fourth heating tube; 7010. Thermostat; 8. Discharge piece; 801. Coarse material tube; 802. Pulverizer; 803. Discharge tube; 804. Discharge motor; 805. Discharge rod; 806. Spiral blade; 807. Support plate; 9. Micro powder tube; 10. Atomizer; 11. Vibrator; 12. Exhaust duct; 13. Powder discharge tube; 14. Liquid material tube; 15. Feed pump. DETAILED DESCRIPTION

[0038] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0039] like Figures 1 to 7 As shown, an embodiment of the present invention provides a spray drying device for abalone collagen peptide, comprising: a frame and a drying tank 1 arranged on the frame, a heating tank 2 is fixed above the frame, a dry powder tank 3 is fixed above the frame, and further comprising:

[0040] The spiral channel 4 is provided in the drying tank 1; the air distribution hole 5 is provided in the drying tank 1, and one side is connected to the spiral channel 4, and the other end is connected to the drying tank 1, and is used to form an air flow spirally downward in the wall of the drying tank to form a continuous spiral wind field to prevent the water mist from contacting the tank wall; the wind control unit 6 is fixed on the drying tank 1 at one end and fixed on the heating tank 2 at the other end, and is used to divide the spiral channel 4 into multiple sections to form a pulse wind field, thereby preventing the wall from hanging and improving the drying uniformity through periodic air flow impact to adapt to various material characteristics; the heating element 7 is fixed on the heating tank 2; the discharging element 8 is fixed under the drying tank 1; the micro powder tube 9 extends into the drying tank 1 at one end and is fixed on the dry powder tank 3 at the other end; the main air rectangular tube 601 is fixed on the heating tank 2 at one end and is fixed on the drying tank 1 at the other end; the auxiliary air conical tube 602 is fixed on the heating tank 2 at one end. On the hot tank 2, the other end is fixed on the drying tank 1 and is connected to the spiral channel 4; the air control cone 603, one end is fixed on the heating tank 2, and the other end is fixed on the drying tank 1, and is connected to the spiral channel 4, and is located below the auxiliary air cone 602; the fixed ring 604 is fixed in the spiral channel 4; the air control ring frame 605 is slidably set on the fixed ring 604 and is located in the air control cone 603; the closed curved plate 606 is slidably set in the spiral channel 4 and fixed on the air control ring frame 605; the atomizer 10 is fixed in the drying tank 1; a vibrator 11 is fixed below the drying tank 1, an exhaust pipe 12 is fixed above the dry powder tank 3, and a powder exhaust pipe 13 is fixed below the dry powder tank 3; a liquid material pipe 14 is fixed above the atomizer 10, a feed pump 15 is fixed to the liquid material pipe 14, and the pump seat of the feed pump 15 is fixed on the drying tank 1.

[0041] Specifically, temperature sensors and wind flow sensors are installed in the drying tank 1, heating tank 2, dry powder tank 3 and pipelines, and the vibrator 11 vibrates regularly to avoid the drying tank 1 from caking after long-term use.

[0042] As a preferred embodiment of the present invention, the wind control unit 6 also includes: a first fan 607, fixed on the heating tank 2, and a working end fixed on the main air rectangular tube 601; a second fan 608, fixed on the drying tank 1, and a working end fixed on the auxiliary air cone 602; a third fan 609, fixed on the drying tank 1, and a working end fixed on the air control cone 603.

[0043] The wind control unit 6 also includes: a wind control motor 6010, fixed to the drying tank 1; a valve plate 6011, rotatably arranged in the wind control cone 603, and the valve shaft is fixed to the wind control motor 6010; a return spring 6012, one end of which is fixed to the fixing ring 604 and the other end is fixed to the wind control ring frame 605; and a displacement plate 6013, which is fixed to the wind control ring frame 605.

[0044] The wind control unit 6 further includes: an air filter tube 6014, one end of which is fixed to the heating tank 2 and the other end is fixed below the drying tank 1; a fourth fan 6015, which is fixed to the heating tank 2 and has its working end fixed to the air filter tube 6014; an air filter channel 6016, which is provided below the drying tank 1 and communicates with the air filter tube 6014; and an air filter hole 6017, which is provided in the drying tank 1 and communicates with the air filter channel 6016 and the interior of the drying tank 1.

[0045] As a preferred embodiment of the present invention, the heating element 7 includes: an air inlet box 701, fixed below the heating tank 2; an air filter plate 702, fixed on the end away from the heating tank 2; a limit plate 703, fixed in the air inlet box 701; a closed cover plate 704, fixed above the air inlet box 701; a filter core plate 705, slidably arranged in the air inlet box 701; the heating element 7 also includes: a first heating tube 706, fixed at the bottom of the heating tank 2; a second heating tube 707, fixed at the top of the heating tank 2; a third heating tube 708, fixed in the main wind rectangular tube 601; a fourth heating tube 709, fixed in the wind control cone tube 603; a plurality of thermostats 7010 are provided, and the plurality of thermostats 7010 are respectively fixed on the first heating tube 706, the second heating tube 707, the third heating tube 708 and the fourth heating tube 709, and the plurality of thermostats 7010 are fixed on the heating tank 2, the main wind rectangular tube 601 and the wind control cone tube 603.

[0046] Specifically, the first heating tube 706 , the second heating tube 707 , the third heating tube 708 and the fourth heating tube 709 heat the air; the air filter plate 702 and the filter core plate 705 effectively filter the external air.

[0047] As a preferred embodiment of the present invention, the discharge member 8 includes: a coarse material pipe 801, fixed below the drying tank 1; a pulverizer 802, fixed below the coarse material pipe 801; a discharge pipe 803, fixed on the pulverizer 802; the discharge member 8 also includes: a discharge motor 804, the base of which is fixed on the pulverizer 802; a discharge rod 805, rotatably set on the coarse material pipe 801 and fixed on the discharge motor 804; a spiral blade 806, fixed on the discharge rod 805, and located in the coarse material pipe 801; a support plate 807, fixed in the coarse material pipe 801, and rotatably sleeved on the discharge rod 805.

[0048] Specifically, the pulverizer 802 grinds larger particles or agglomerates.

[0049] Working principle: first, preheat the drying tank 1, start the first heating tube 706, the second heating tube 707, the third heating tube 708 and the thermostat 7010, the first heating tube 706 and the second heating tube 707 heat the heating tank 2, and the third heating tube 708 heats the main air rectangular tube 601, and the thermostat 7010 is used to control the temperature of the first heating tube 706, the second heating tube 707 and the third heating tube 708; then start the first fan 607 and the second fan 608, the first fan 607 and the second fan 608 extract the air inside the heating tank 2, and form a negative pressure in the heating tank 2, and the outside air enters the heating tank 2 from the air inlet box 701, and the outside air needs to be filtered by the filter plate 702 and the filter core plate 705. The first heating tube 706, the second heating tube 707 and the third heating tube 708 heat the air, and the hot air enters the drying tank 1 through the main air rectangular tube 601 and the auxiliary air cone tube 602.

[0050] The main air rectangular tube 601 cuts into the drying tank 1 at a certain angle, and the hot air flowing in the drying tank 1 forms a spiral downward wind field, forming a hot air spiral rotating flow field; the hot air in the auxiliary air conical tube 602 enters the spiral channel 4, and then enters the drying tank 1 through the air distribution hole 5. The opening direction of the air distribution hole 5 is toward the drying tank 1. The air distribution hole 5 cuts into the drying tank 1 at a certain angle, and the hot air in the spiral channel 4 and the air distribution hole 5 spirals downward to form a spiral airflow field.

[0051] like Figure 5 As shown, the "certain angle" of the main air rectangular tube 601 means that the entry point of the main air rectangular tube 601 and the center of the drying tank 1 pass through a connecting line, and this connecting line is perpendicular to the main air rectangular tube 601; the entry angle of the air distribution hole 5 is the same as the entry angle of the main air rectangular tube 601.

[0052] After the drying tank 1 is preheated and the temperature inside the drying tank 1 reaches a threshold, the atomizer 10 and the feed pump 15 are turned on. The feed pump 15 draws the external raw material liquid through the liquid pipe 14 and supplies it to the atomizer 10. The atomizer 10 converts the raw material liquid into water mist and sprays it into the drying tank 1. The flowing hot air evaporates the water in the water mist, forming dust particles.

[0053] Hot air enters the drying tank 1 through the main air rectangular tube 601. The spiral rotation of the hot air drives the entire water mist in the drying tank 1 to spiral downward in a circular motion. The water mist has mass, and during the circular motion, centrifugal force is generated, and its direction is always perpendicular to the center of rotation and outward. If there is no other force to offset it, the centrifugal force will continue to push the water mist toward the tank wall, causing the water mist to contact the tank wall and adhere to it.

[0054] To solve the problem of "water mist contacting and adhering to the tank wall", hot air enters the drying tank 1 through the auxiliary air cone 602, and the hot air enters the spiral channel 4 and the air distribution holes 5; a spiral channel 4 is provided in the drying tank 1, and the spiral channel extends downward to provide hot air to the air distribution holes 5; the air distribution holes 5 are evenly distributed along the spiral channel 4, and the spiral airflow field of the air distribution holes 5 is located between the inner wall of the drying tank 1 and the hot air spiral rotating flow field, playing an isolation role, preventing the water mist in the hot air spiral rotating flow field from directly contacting the inner wall of the drying tank 1; the flow velocity of the spiral airflow field is lower than the flow velocity of the hot air spiral rotating flow field, and the flow velocity of the spiral airflow field is used to offset the centrifugal force of the water mist, ensuring that the water mist will not move to the tank wall of the drying tank 1 due to centrifugal action.

[0055] The hot air spiral swirling flow field drives the water mist while helping the moisture in the water mist to evaporate. As the hot air spiral swirling flow field gradually moves downward, the temperature gradually decreases, but the flow rate remains unchanged. More water mist approaches the inner wall of the drying tank 1 due to the centrifugal force in the hot air spiral swirling flow field. While the spiral airflow field isolates the water mist, the heat it carries increases the temperature of the contact area between the spiral airflow field and the hot air spiral swirling flow field, continuously and effectively evaporating the water mist that has not yet completely dried.

[0056] The fourth fan 6015 is started. The fourth fan 6015 extracts air from the heating tank 2 through the air filter pipe 6014. The air is discharged through the air filter channel 6016 and the air filter hole 6017. The air flows toward the fine powder tube 9. By adjusting the power of the fourth fan 6015, a small wind barrier is formed at the bottom of the drying tank 1. The dust particles pass through this wind barrier and enter the fine powder tube 9 more easily. The agglomerated dust particles will pass through the wind barrier and enter the coarse material tube 801. The discharge motor 80 is started. 4. The rotation of the discharge motor 804 drives the rotation of the discharge rod 805, and the rotation of the discharge rod 805 drives the rotation of the spiral blade 806. The rotation of the spiral blade 806 drives the agglomerated dust particles into the pulverizer 802, and is discharged from the discharge pipe 803 after being ground by the pulverizer 802. The discharge pipe 803 is connected to the pipeline of the next process; an electric switch valve is set on the discharge pipe 803 to seal the coarse material pipe 801 and the pulverizer 802, ensuring that the dust particles enter the fine powder tube 9 with the flowing air.

[0057] The wind carries the dust particles from the powder tube 9 into the dry powder tank 3; the hot air is discharged from the exhaust pipe 12, and the dust particles are discharged from the powder discharge pipe 13, which is connected to the next process pipeline.

[0058] Start the first fan 607, the second fan 608 and the third fan 609; the hot air provided by the first fan 607 enters the drying tank 1 from the main air rectangular tube 601 to maintain the overall spiral downward air flow; start the wind control motor 6010, the rotation of the wind control motor 6010 drives the rotation of the valve plate 6011, and at the same time, the edge of the valve plate 6011 abuts against the displacement plate 6013, and the displacement of the displacement plate 6013 drives the air control ring frame 605 to slide along the fixed ring 604, the return spring 6012 is compressed, and the air control ring frame 605 drives the closing curved plate 606 toward the spiral channel 4, and the spiral channel 4 is divided into multiple sections by the closed curved plate 606; the second fan 608 provides hot air in the top channel of the spiral channel 4; the third fan 609 passes the hot air in the middle and bottom channels of the spiral channel 4; the spiral channel 4 is divided into multiple sections to form a pulse wind field, thereby preventing wall hanging and improving drying uniformity to adapt to various material characteristics through periodic air flow impact; the wind control motor 6010 is started again to drive the valve plate 6011 to reset, and the reset spring 6012 drives the air control ring frame 605 and the closed curved plate 606 to reset, and the spiral channel 4 is no longer segmented.

[0059] Anti-sticking wall of continuous spiral wind field:

[0060] A spiral channel 4 is provided on the inner wall of the drying tank 1, and air distribution holes 5 are evenly spaced along the spiral path in the channel. Hot air enters the spiral channel 4 through the auxiliary air cone 602 and is then sprayed into the drying tank 1 in a tangential direction through the air distribution holes 5. At the same time, the main air rectangular tube 601 directly transports hot air into the drying tank 1, pushing the overall airflow to flow spirally downward along the tank wall.

[0061] The hot air from the auxiliary air cone 602 is constrained to spiral in the spiral channel 4. After being ejected through the air distribution holes 5, it forms a continuous spiral airflow field spiraling downward on the inner wall of the drying tank 1. The hot air spiral rotation flow field of the main air rectangular tube 601 drives the entire air flow in the tank to spiral downward synchronously, and the two are superimposed to form a double spiral wind field. In the hot air spiral rotation flow field, the water mist particles are moved toward the tank wall by the centrifugal force, but the spiral airflow field offsets the centrifugal force, keeping the water mist in a suspended and rotating state in the drying tank 1 and avoiding contact with the tank wall. The continuous spiral airflow field forms an air film protective layer on the inner wall of the drying tank 1 to isolate the water mist and prevent it from directly contacting the wall of the drying tank 1. The spiral airflow field cuts into the drying tank 1 at a certain angle, effectively removing a small amount of material that may adhere to the wall of the drying tank 1 through shearing action, thereby keeping the wall surface of the drying tank 1 clean.

[0062] Anti-wall hanging in pulse wind farm:

[0063] The wind control unit 6 divides the spiral channel 4 into multiple independent air chambers along the axial direction through the closed curved plate 606. Each air chamber is supplied with air by the auxiliary air cone 602 and the control air cone 603 respectively; the wind control motor 6010 drives the valve plate 6011 to rotate periodically, and drives the closed curved plate 606 to slide back and forth through the displacement plate 6013 and the return spring 6012, thereby changing the on and off state of each air chamber.

[0064] When the valve plate 6011 rotates, the closing curved plate 606 retracts or withdraws into the spiral channel 4, periodically connecting or blocking the airflow channels of each air chamber. The top air chamber (supplied by the auxiliary air cone 602) and the middle and bottom air chambers (supplied by the air control cone 603) are alternately ventilated, forming a periodic pulsed airflow in the spiral channel 4. After being sprayed into the drying tank 1 through the air distribution holes 5, it is converted into a pulsed spiral impact airflow inside the tank.

[0065] The periodic impact of the pulsed airflow can destroy the material adhesion layer that may form on the tank wall, and forcibly peel off the material adhering to the wall through the kinetic energy of the airflow; the alternating air supply of the multiple air chambers causes the airflow speed and direction in the spiral channel 4 to change periodically, forming a turbulent effect and enhancing the scouring effect on the tank wall.

[0066] Pulse airflow can break the "steady-state" flow pattern of the traditional spiral wind field, causing material particles in different areas to be affected by non-uniform airflow, thereby promoting mixing and heat exchange between particles. By adjusting the speed of the wind control motor 6010 and the angle of the valve plate 6011, the pulse frequency and the ventilation ratio of each air chamber can be changed to adapt to the viscosity, particle size and other characteristics of different materials, thereby achieving dynamic optimization of drying parameters.

[0067] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A spray drying device for abalone collagen peptide, comprising: A frame and a drying tank arranged on the frame, a heating tank is fixed above the frame, and a dry powder tank is fixed above the frame, characterized in that it also includes: A spiral channel is provided in the drying tank; an air distribution hole is provided in the drying tank, and one end of the hole is connected to the spiral channel, and the other end is connected to the drying tank, and is used to form an airflow spiraling downward in the wall of the drying tank to form a continuous spiral wind field to prevent the water mist from contacting the tank wall; an air control unit is fixed on the drying tank at one end and on the heating tank at the other end, and is used to divide the spiral channel into multiple sections to form a pulsed wind field, thereby preventing wall adhesion and improving drying uniformity through periodic airflow impact to adapt to various material characteristics; a heating element is fixed on the heating tank; a discharging element is fixed under the drying tank; a micro powder tube extends into the drying tank at one end and is fixed on the dry powder tank at the other end; The main air rectangular tube is fixed on the heating tank at one end and on the drying tank at the other end; the auxiliary air cone tube is fixed on the heating tank at one end and on the drying tank at the other end, and is connected to the spiral channel; the air control cone tube is fixed on the heating tank at one end and on the drying tank at the other end, and is connected to the spiral channel and is located below the auxiliary air cone tube; the fixing ring is fixed in the spiral channel; the air control ring frame is slidably set on the fixing ring and is located in the air control cone tube; the closing curved plate is slidably set in the spiral channel and fixed to the air control ring frame; The wind control unit also includes: a first fan, fixed on the heating tank, and a working end thereof is fixed on the main air rectangular tube; a second fan, fixed on the drying tank, and a working end thereof is fixed on the auxiliary air cone tube; a third fan, fixed on the drying tank, and a working end thereof is fixed on the air control cone tube; an air control motor, fixed on the drying tank; a valve plate, rotatably arranged in the air control cone tube, and a valve shaft is fixed on the air control motor; a return spring, one end of which is fixed on the fixing ring, and the other end of which is fixed on the air control ring frame; a displacement plate, fixed on the air control ring frame; an air filter tube, one end of which is fixed on the heating tank, and the other end of which is fixed below the drying tank; a fourth fan, fixed on the heating tank, and a working end thereof is fixed on the air filter tube; an air filter channel, provided below the drying tank, and communicated with the air filter tube; an air filter hole, provided in the drying tank, and communicated with the air filter channel, and communicated with the inside of the drying tank; Atomizer, fixed in the drying tank.

2. A spray drying device for abalone collagen peptide according to claim 1, characterized in that, The heating element comprises: The air inlet box is fixed below the heating tank; the air filter plate is fixed on the end away from the heating tank; the limit plate is fixed in the air inlet box; the closing cover is fixed above the air inlet box; the filter core plate is slidably arranged in the air inlet box.

3. A spray drying device for abalone collagen peptide according to claim 2, characterized in that, The heating element further comprises: The first heating tube is fixed at the bottom of the heating tank; the second heating tube is fixed at the top of the heating tank; the third heating tube is fixed in the main wind rectangular tube; the fourth heating tube is fixed in the wind control cone tube; there are multiple thermostats, and the multiple thermostats are respectively fixed on the first heating tube, the second heating tube, the third heating tube and the fourth heating tube, and the multiple thermostats are fixed on the heating tank, the main wind rectangular tube and the wind control cone tube.

4. A spray drying device for abalone collagen peptide according to claim 1, characterized in that, The discharging part comprises: The coarse material pipe is fixed under the drying tank; the grinding mill is fixed under the coarse material pipe; and the discharge pipe is fixed on the grinding mill.

5. A spray drying device for abalone collagen peptide according to claim 4, characterized in that, The discharging member further comprises: The discharge motor has a base fixed on the grinding mill; the discharge rod is rotatably set on the coarse material pipe and fixed on the discharge motor; the spiral blade is fixed on the discharge rod and located in the coarse material pipe; the support plate is fixed in the coarse material pipe and rotatably sleeved on the discharge rod.

6. A spray drying device for abalone collagen peptide according to claim 1, characterized in that, A vibrator is fixedly arranged below the drying tank, an exhaust pipe is fixed above the dry powder tank, and a powder exhaust pipe is fixed below the dry powder tank.

7. A spray drying device for abalone collagen peptide according to claim 1, characterized in that, A liquid material pipe is fixed above the atomizer, a feed pump is fixed to the liquid material pipe, and a feed pump seat is fixed on the drying tank.

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