Drying device for producing milk powder containing lactoferrin

Abstract

The embodiment of the utility model discloses a drying device for producing milk powder containing lactoferrin, which comprises a bag filter, a cyclone separator, a drying tower and a fluidized bed, the top of the drying tower is connected with the cyclone separator, the cyclone separator is connected with the bag filter, an air distributor is mounted at the upper end of the drying tower, and the fluidized bed is mounted at the bottom of the drying tower. The fluidized bed is connected with three heaters, and the heaters are connected with a fan through air pipes; an air inlet pipe is mounted at the upper end of the drying tower and connected with a heater, and the heater is connected with a fan through an air pipe; the bag filter is connected with an exhaust pipe; and the exhaust pipe is connected with a fan. According to the utility model, low-temperature drying can be carried out, and the problem of inactivation of lysozyme and immune globulin is solved.

Description

Technical Field

[0001] This utility model relates to the field of drying technology, specifically to a drying device for producing milk powder containing lactoferrin. Background Technology

[0002] Lactoferrin is primarily derived from the milk of mammals, such as cow's milk and goat's milk. In the production of lactoferrin milk powder, lactoferrin is typically extracted from milk first and then added to the milk powder. Lactoferrin contains lysozyme and immunoglobulins, which can kill or inhibit various pathogens. Lysozyme is an enzyme that breaks down cell walls; its activity remains stable at low temperatures, while high temperatures reduce or even inactivate it, affecting the efficacy of the lactoferrin powder. Therefore, spray-drying lactoferrin at low temperatures is crucial. Currently, most spray drying towers in the milk powder market use high-temperature drying, which easily leads to the inactivation of lysozyme and immunoglobulins. Utility Model Content

[0003] This invention provides a drying device for producing milk powder containing lactoferrin, which can perform low-temperature drying and solve the problem of inactivation of lysozyme and immunoglobulins.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A drying device for producing milk powder containing lactoferrin includes a bag filter, a cyclone separator, a drying tower, and a fluidized bed. The top of the drying tower is connected to the cyclone separator, the cyclone separator is connected to the bag filter, an air distributor is installed at the top of the drying tower, and a fluidized bed is installed at the bottom of the drying tower. The fluidized bed is connected to three heaters, and the heaters are connected to a fan through ducts.

[0006] An air inlet pipe is installed at the top of the drying tower. The air inlet pipe is connected to the heater, and the heater is connected to the fan through the air duct.

[0007] The bag filter is connected to the exhaust duct, and the exhaust duct is connected to the fan.

[0008] Preferably, the drying tower includes a tower body at the upper end and a tower cone section at the lower end, with a fluidized bed installed at the bottom of the tower cone section and four mounting columns installed around the upper circumference of the tower cone section.

[0009] Preferably, the tower body includes an inner tower body and an outer tower body. A top cover is installed on the top of the outer tower body. An air distributor is installed between the top middle of the inner tower body and the top cover. The inner tower body is equipped with two air outlet pipes. The ends of the two air outlet pipes are connected to a cyclone connecting pipe. The end of the cyclone connecting pipe is connected to one end of the air outlet pipe. The air outlet pipe is connected to a cyclone separator. The cyclone connecting pipe is located on the outside of the drying tower.

[0010] Preferably, the cyclone connecting pipe includes a Y-shaped tee, two straight pipes, two elbows, and two pipe clamps. One end of the Y-shaped tee is connected to the second air outlet pipe, the Y-shaped tee is connected to the two straight pipes, the other end of the straight pipes is connected to the elbows, and the elbows are connected to the first air outlet pipe via pipe clamps.

[0011] Preferably, the air distributor is connected to the air inlet pipe, which passes through the outer tower body and is located on the outside of the inner tower body.

[0012] Preferably, it also includes an explosion vent duct that passes through the outer tower body and is installed on the inner tower body. The inner tower body is provided with an explosion vent plate, which is located at the explosion vent duct.

[0013] Preferably, the tower cone section is provided with four circumferentially distributed fixing plates, which are spaced apart from the columns. The fixing plates are connected to the two adjacent fixing plates by connecting columns, which are bolted to the fixing plates and welded to the columns.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention improves upon traditional drying structures. The drying tower comprises a tower body and a conical section. A fluidized bed is installed at the bottom of the conical section, and a cyclone connecting pipe structure is incorporated to ensure the internal temperature is maintained at 60-70 degrees Celsius, preventing the conical section from becoming damp and sticking to the tower wall during low-temperature drying. The cyclone system captures fine particles, facilitating dry mixing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of an embodiment of the present utility model.

[0017] Figure 2 This is a schematic diagram from another perspective of one embodiment of the present invention.

[0018] Figure 3 This is a schematic diagram of an embodiment of the present invention after the top cover has been removed.

[0019] Figure 4 This is a partial schematic diagram of an embodiment of the present invention.

[0020] Figure 5 This is a partial schematic diagram of an embodiment of the present invention.

[0021] Figure 6 This is a partial schematic diagram of an embodiment of the present invention. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] As shown in the figure, this utility model discloses a drying device for producing milk powder containing lactoferrin, including a bag filter 1, a cyclone separator 2, a drying tower 3, and a fluidized bed 4. The top of the drying tower 3 is connected to the cyclone separator 2, and the cyclone separator 2 is connected to the bag filter 1. An air distributor 5 is installed at the upper end of the drying tower 3, and a fluidized bed 4 is installed at the bottom of the drying tower 3. The fluidized bed 4 is connected to three heaters 6, and the heaters 6 are connected to a fan 7 through an air duct 8. The bag filter 1, cyclone separator 2, fluidized bed 4, and air distributor 5 use existing equipment, such as the centrifugal vibrating fluidized bed disclosed in application number 2024203457200, which will not be described in detail here.

[0024] An air inlet pipe 9 is installed at the upper end of the drying tower 3. The air inlet pipe 9 is connected to the heater 6. The heater 6 is connected to the fan 7 through an air duct 8.

[0025] The bag filter 1 is connected to the exhaust pipe 10, and the exhaust pipe 10 is connected to the fan 8.

[0026] Hot air is blown into the drying tower 3 from the air distributor 5 and dries the lactoferrin solution sprayed from the spray gun into granules. The hot air is then extracted from the drying tower 3 and enters the cyclone separator 2. The powder collected by the cyclone separator 2 falls into the powder receiving hopper below through a timing valve, and the fine powder is discharged by the exhaust fan. When the drying tower 3 is too large, there will be an excessive temperature difference from the air inlet to the conical section. The temperature of the conical section is lower than the exhaust temperature, resulting in a partially wet tower. Therefore, the size of the drying tower 3 is limited. This invention installs a fluidized bed 4 at the bottom of the drying tower 3 to prevent the conical section 32 of the drying tower 3 from becoming damp and sticking to the tower wall during low-temperature drying. Temperature is the main factor affecting the activity of lactoferrin, so the temperature inside the tower needs to be maintained at 60-70 degrees Celsius.

[0027] In one embodiment of this utility model, the drying tower 3 includes a tower body 31 at the upper end and a tower cone section 32 at the lower end. The fluidized bed 4 is installed at the bottom of the tower cone section 32, and four mounting columns 33 are installed around the upper circumference of the tower cone section 32. The mounting columns 33 are used to support the entire drying tower 3 and facilitate the installation of the fluidized bed 4.

[0028] In one embodiment of this utility model, the tower body 31 includes an inner tower body 311 and an outer tower body 312. An insulation layer is provided between the inner tower body 311 and the outer tower body 312. A top cover 313 is installed on the top of the outer tower body 312 to seal the top of the outer tower body. The top cover 313 is installed after the inner tower body 311 is installed. An air distributor 5 is installed between the top center of the inner tower body 311 and the top cover 313. The inner tower body 311 is equipped with two air outlet pipes 11. The ends of the two air outlet pipes 11 are connected to a cyclone connecting pipe 12. The end of the cyclone connecting pipe 12 is connected to one end of an air outlet pipe 13. The air outlet pipe 13 is connected to a cyclone separator 2. The cyclone connecting pipe 12 is located on the outside of the drying tower 3. Air containing powder particles enters the cyclone connecting pipe 12 from the two air outlet pipes 11, then enters the air outlet pipe 13, and finally enters the cyclone separator 2.

[0029] In one embodiment of this utility model, the cyclone connecting pipe 12 includes a Y-shaped tee 121, two straight pipes 122, two elbows 123, and two pipe clamps 124. One end of the Y-shaped tee 121 is connected to the second air outlet pipe 13, and the Y-shaped tee 121 is connected to the two straight pipes 122. The other end of the straight pipes 122 is connected to the elbows 123, and the elbows 123 are connected to the first air outlet pipe 11 via pipe clamps 124. The airflow from the two first air outlet pipes 11 enters the straight pipes 122, then enters the Y-shaped tee 121, and then enters the cyclone connecting pipe 12. By setting two first air outlet pipes 11, this utility model can quickly extract the airflow from the inner tower body 311, thereby extracting the cooling airflow, ensuring drying efficiency, and also avoiding excessive pressure inside the inner tower body.

[0030] In one embodiment of this utility model, the air distributor 5 is connected to the air inlet pipe 9, which passes through the outer tower body 312 and is located on the outside of the inner tower body 311.

[0031] In one embodiment of this utility model, an explosion-proof duct 14 is also included. The explosion-proof duct 14 passes through the outer tower body 312 and is installed on the inner tower body 311. The inner tower body 311 is provided with an explosion-proof disc 3111, which is located at the explosion-proof duct 14. In the event of an explosion due to excessive pressure in the drying tower, pressure will be released from the explosion-proof disc 3111. The design of the explosion-proof duct 14 ensures the safety of explosion venting.

[0032] In one embodiment of this utility model, four circumferentially distributed fixing plates 15 are provided on the tower cone section 32. The fixing plates 15 are spaced apart from the columns 33, and the fixing plates 15 are connected to each other by connecting columns 16. The connecting columns 16 are bolted to the fixing plates 15 and welded to the columns 33. The design of the connecting columns 16 and the fixing plates 15 serves to support the tower cone section 32.

[0033] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of this utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A drying apparatus for producing milk powder containing lactoferrin, comprising a bag filter, a cyclone separator, a drying tower, and a fluidized bed, characterized in that: The top of the drying tower is connected to a cyclone separator, the cyclone separator is connected to a bag filter, an air distributor is installed at the top of the drying tower, a fluidized bed is installed at the bottom of the drying tower, the fluidized bed is connected to three heaters, and the heaters are connected to a fan through ducts. An air inlet pipe is installed at the top of the drying tower. The air inlet pipe is connected to the heater, and the heater is connected to the fan through the air duct. The bag filter is connected to the exhaust duct, and the exhaust duct is connected to the fan.

2. The drying apparatus for producing milk powder containing lactoferrin according to claim 1, characterized in that: The drying tower consists of a tower body at the top and a cone section at the bottom. A fluidized bed is installed at the bottom of the cone section, and four mounting columns are installed around the upper circumference of the cone section.

3. The drying apparatus for producing milk powder containing lactoferrin according to claim 2, characterized in that: The tower body includes an inner tower body and an outer tower body. A top cover is installed on the top of the outer tower body. An air distributor is installed between the top middle of the inner tower body and the top cover. The inner tower body is equipped with two air outlet pipes. The ends of the two air outlet pipes are connected to a cyclone connecting pipe. The end of the cyclone connecting pipe is connected to one end of the second air outlet pipe. The second air outlet pipe is connected to a cyclone separator. The cyclone connecting pipe is located on the outside of the drying tower.

4. The drying apparatus for producing milk powder containing lactoferrin according to claim 3, characterized in that: The cyclone connecting pipe includes a Y-shaped tee, two straight pipes, two elbows, and two pipe clamps. One end of the Y-shaped tee is connected to the second air outlet pipe, and the Y-shaped tee is connected to the two straight pipes. The other end of the straight pipes is connected to the elbows, and the elbows are connected to the first air outlet pipe via pipe clamps.

5. The drying apparatus for producing milk powder containing lactoferrin according to claim 4, characterized in that: The air distributor is connected to the air inlet duct, which passes through the outer tower body and is located on the outside of the inner tower body.

6. The drying apparatus for producing milk powder containing lactoferrin according to claim 3, characterized in that: It also includes an explosion vent duct that passes through the outer tower body and is installed on the inner tower body. The inner tower body is equipped with an explosion vent plate, which is located at the explosion vent duct.

7. The drying apparatus for producing milk powder containing lactoferrin according to claim 2, characterized in that: The tower cone section is equipped with four circumferentially distributed fixing plates. The fixing plates are spaced apart from the columns. The fixing plates are connected to the two adjacent fixing plates by connecting columns. The connecting columns are connected to the fixing plates by bolts and welded to the columns.

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