Spray dryer for drying protein

Abstract

The utility model discloses a spray dryer for drying protein, which comprises a charging barrel, a spray main machine, a pulse bag-type dust collector, an induced draft fan and a silencer, a cleaning mechanism is arranged in the spray main machine, the cleaning mechanism comprises a driving plate, two groups of mounting rings and two groups of scraping plates, the outer wall of the scraping plate is in contact with the inner wall of the spraying main machine, a connecting plate is fixedly arranged between the mounting ring and the scraping plate, a gear ring is fixedly arranged on the inner wall of the mounting ring, and a gear motor is fixedly arranged at the top of the spraying main machine; by means of the designed cleaning mechanism, materials adhering to the inner wall of the spraying main machine can be cleaned while the materials are dried, the materials adhering to the inner wall are scraped and cleaned through the rotating scraping plate, regular shutdown for cleaning the materials adhering to the inner wall is not needed, and the protein powder drying processing efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of spray dryers, and particularly relates to a spray dryer for drying proteins. Background Art

[0002] Protein powders (such as milk powder, protein powder, peptide powder, etc.) are often produced using spray dryers. The basic principle of a spray dryer is as follows: hot air and atomized material are simultaneously introduced into the spray main body. After the atomized material comes into contact with the high-temperature hot air, the moisture quickly evaporates and becomes a dried product in a very short time.

[0003] In the existing spray dryers, during the drying process, the material is prone to adhering to the inner wall of the spray main body. After the material adheres to the inner wall, effective discharging cannot be carried out, and it is necessary to regularly stop the machine for cleaning. After cleaning, reprocessing of the material is required, which increases the processes and costs of protein powder processing and reduces the production efficiency. For this reason, we propose a spray dryer for drying proteins. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a spray dryer for drying proteins, so as to solve the problem that in the existing spray dryer during the drying process, the material is prone to adhering to the inner wall of the spray main body, and after the material adheres to the inner wall, effective discharging cannot be carried out, and it is necessary to regularly stop the machine for cleaning. After cleaning, reprocessing of the material is required, which increases the processes and costs of protein powder processing and reduces the production efficiency as mentioned in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A spray dryer for drying proteins, comprising a material cylinder, a spray main body, a pulse bag filter, an induced draft fan and a silencer. A cleaning mechanism is arranged inside the spray main body. The cleaning mechanism includes a driving plate, two groups of mounting rings and two groups of scraping plates. The outer wall of the scraping plate is in contact with the inner wall of the spray main body. A connecting plate is fixedly arranged between the mounting ring and the scraping plate. A toothed ring is fixedly arranged on the inner wall of the mounting ring. A reduction motor is fixedly arranged on the top of the spray main body. The working end of the reduction motor extends into the spray main body. A main gear is fixedly arranged at the working end of the reduction motor. The main gear meshes with the toothed ring. A bearing is fixedly arranged on the top inner wall of the driving plate.

[0006] Preferably, two connecting bars are fixedly arranged on the outside of the driving plate, and the ends of the connecting bars are fixedly connected to the inner wall of the mounting ring.

[0007] Preferably, the top of the outer wall of the bearing is fixedly connected to the top inner wall of the spray main body.

[0008] Preferably, a grinding assembly is provided at the bottom of the driving plate. The grinding assembly includes two grinding rollers and a fixing ring. The top of the grinding roller is rotatably connected to a first plate body through a rotating shaft.

[0009] Preferably, a second plate body is fixedly provided between the first plate body and the fixing ring, and the fixing ring is fixed to the outside of the driving plate.

[0010] Preferably, a Mono pump is provided on the material cylinder, a steam heater is provided on one side of the spray main body, a blower is provided on the steam heater, a discharge port is provided at the bottom of the spray main body, a cyclone separator is provided at the bottom of the discharge port, and an ultrasonic dispersion chamber is fixedly provided at the bottom of the cyclone separator.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] (1) Through the designed cleaning mechanism of the present utility model, the material adhered to the inner wall of the spray main body can be cleaned while the material is being dried. The adhered material on the inner wall is scraped and cleaned by the rotating scraping plate, and there is no need to stop the machine regularly to clean the material adhered to the inner wall, thereby improving the drying and processing efficiency of the protein powder.

[0013] (2) Through the designed grinding assembly of the present utility model, the material scraped and cleaned from the inner wall of the spray main body can be ground into powder. The rotating grinding roller crushes the material falling from the bottom of the inner wall of the spray main body, reducing the subsequent pulverization step for the fallen material. Description of the Drawings

[0014] Figure 1 is a schematic structural diagram of the present utility model;

[0015] Figure 2 is a schematic structural diagram of the spray main body of the present utility model;

[0016] Figure 3 is a schematic cross-sectional structural diagram of the spray main body of the present utility model;

[0017] Figure 4 is a schematic structural diagram of the cleaning mechanism of the present utility model;

[0018] Figure 5 is a schematic right view structural diagram of the cleaning mechanism of the present utility model;

[0019] Figure 6 is of the present utility model Figure 5 enlarged schematic structural diagram of part A;

[0020] In the figure: 100, barrel; 101, Mono pump; 102, spray mainframe; 103, induced draft fan; 104, silencer; 105, pulse bag filter; 106, steam heater; 107, blower; 108, discharge port; 109, ultrasonic dispersion chamber; 110, cyclone separator; 200, reduction motor; 201, mounting ring; 202, drive plate; 203, scraping plate; 204, connecting plate; 205, gear ring; 206, bearing; 207, main gear; 208, connecting bar; 300, grinding roller; 301, fixing ring; 302, first plate body; 303, second plate body. Detailed implementation manners

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] Embodiment 1

[0023] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 , the present invention provides a technical solution: a spray dryer for drying proteins, including a barrel 100, a spray mainframe 102, a pulse bag filter 105, an induced draft fan 103 and a silencer 104. A cleaning mechanism is arranged inside the spray mainframe 102. The cleaning mechanism includes a drive plate 202, two groups of mounting rings 201 and two groups of scraping plates 203. During use, the drive plate 202 can drive the mounting ring 201 at the bottom to rotate. The outer wall of the scraping plate 203 is in contact with the inner wall of the spray mainframe 102. A connecting plate 204 is fixedly arranged between the mounting ring 201 and the scraping plate 203. There are two groups of mounting rings 201. The mounting ring 201 at the bottom can increase the connection stability between the scraping plate 203 and the drive plate 202. A gear ring 205 is fixedly arranged on the inner wall of the mounting ring 201. The main gear 207 can drive the gear ring 205 to rotate. A reduction motor 200 is fixedly arranged on the top of the spray mainframe 102. The working end of the reduction motor 200 extends into the spray mainframe 102. The working end of the reduction motor 200 is fixedly arranged with a main gear 207. The main gear 207 is meshed with the gear ring 205. A bearing 206 is fixedly arranged on the inner wall of the top of the drive plate 202. The bearing 206 can facilitate the rotation of the drive plate 202, and the drive plate 202 is of a columnar structure;

[0024] Two sets of connecting strips 208 are fixedly disposed on the outside of the driving plate 202, and the ends of the connecting strips 208 are fixedly connected to the inner wall of the mounting ring 201;

[0025] The top of the outer wall of the bearing 206 is fixedly connected to the top of the inner wall of the spray main unit 102 .

[0026] The utility model is designed with a cleaning mechanism that can clean the material adhered to the inner wall of the spray host 102 while the material is drying. The material adhered to the inner wall is scraped and cleaned by the rotating scraper plate 203, and there is no need to stop the machine regularly to clean the material adhered to the inner wall, thereby improving the efficiency of the protein powder drying process.

[0027] Example 2

[0028] Based on Example 1, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 and Figure 6 A grinding assembly is provided at the bottom of the driving plate 202, and the grinding assembly includes two sets of grinding rollers 300 and a fixing ring 301. When the driving plate 202 drives the grinding rollers 300 to rotate, the grinding rollers 300 can roll on the bottom of the inner wall of the spray host 102, so as to grind the materials dropped during the cleaning process. The top of the grinding rollers 300 is rotatably connected to the first plate body 302 through a rotating shaft;

[0029] The second plate body 303 is fixedly disposed between the first plate body 302 and the fixing ring 301 , and the fixing ring 301 is fixed to the outside of the driving plate 202 .

[0030] The utility model can grind the materials scraped off from the inner wall of the spray main unit 102 into powder by means of the designed grinding assembly, and crush the fallen materials at the bottom of the inner wall of the spray main unit 102 by the rotating grinding roller 300, thereby reducing the subsequent crushing step of the fallen materials.

[0031] In this embodiment, a Mono pump 101 is provided on the barrel 100, a steam heater 106 is provided on one side of the spray main unit 102, a blower 107 is provided on the steam heater 106, a discharge port 108 is provided at the bottom of the spray main unit 102, a cyclone separator 110 is provided at the bottom of the discharge port 108, and an ultrasonic dispersion chamber 109 is fixedly provided at the bottom of the cyclone separator 110. Through the provision of the ultrasonic dispersion chamber 109, the granulation process can be completed under the cavitation effect of ultrasound, the particle size of the product can be increased to increase its surface area, and its solubility can be enhanced, without adding a granulating agent, thereby saving production costs.

[0032] The working principle and use process of this utility model:

[0033] When the utility model is in use, during the drying process of materials, the reduction motor 200 is started. At this time, the working end of the reduction motor 200 rotates to drive the main gear 207 to rotate. The main gear 207 drives the gear ring 205 to rotate, and the gear ring 205 drives the mounting ring 201 and the connecting bar 208 to rotate, thereby driving the scraping plate 203 and the driving plate 202 to rotate. At this time, the scraping plate 203 scrapes off the materials adhering to the inner wall of the spray main machine 102 and makes them fall off;

[0034] When the driving plate 202 rotates, it will drive the fixed ring 301 to rotate. The fixed ring 301 drives the second plate body 303 and the first plate body 302 to rotate in sequence, thereby driving the grinding roller 300 to rotate. At this time, the grinding roller 300 rolls at the bottom of the inner wall of the spray main machine 102 to crush and grind the fallen materials.

[0035] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A spray dryer for drying proteins, comprising a barrel (100), a spray main machine (102), a pulse bag dust collector (105), a draft fan (103) and a silencer (104), characterized in that: A cleaning mechanism is arranged inside the spray main machine (102). The cleaning mechanism includes a driving plate (202), two groups of mounting rings (201) and two groups of scraping plates (203). The outer wall of the scraping plate (203) is in contact with the inner wall of the spray main machine (102). A connecting plate (204) is fixedly arranged between the mounting ring (201) and the scraping plate (203). A toothed ring (205) is fixedly arranged on the inner wall of the mounting ring (201). A reduction motor (200) is fixedly arranged on the top of the spray main machine (102). The working end of the reduction motor (200) extends into the spray main machine (102). A main gear (207) is fixedly arranged at the working end of the reduction motor (200). The main gear (207) meshes with the toothed ring (205). A bearing (206) is fixedly arranged on the inner wall of the top of the driving plate (202).

2. The spray dryer for drying proteins according to claim 1, characterized in that: Two groups of connecting bars (208) are fixedly arranged on the outside of the driving plate (202), and the ends of the connecting bars (208) are fixedly connected to the inner wall of the mounting ring (201).

3. The spray dryer for drying proteins according to claim 2, characterized in that: The top of the outer wall of the bearing (206) is fixedly connected to the top of the inner wall of the spray main machine (102).

4. A spray dryer for drying proteins according to claim 3, characterized in that: A grinding assembly is arranged at the bottom of the driving plate (202). The grinding assembly includes two groups of grinding rollers (300) and a fixing ring (301). The top of the grinding roller (300) is rotatably connected to a first plate body (302) through a rotating shaft.

5. A spray dryer for drying proteins according to claim 4, characterized in that: A second plate body (303) is fixedly arranged between the first plate body (302) and the fixing ring (301), and the fixing ring (301) is fixed on the outside of the driving plate (202).

6. A spray dryer for drying proteins according to claim 1, characterized in that: A Mono pump (101) is arranged on the material barrel (100). A steam heater (106) is arranged on one side of the spray main machine (102). A blower (107) is arranged on the steam heater (106). An outlet (108) is arranged at the bottom of the spray main machine (102). A cyclone separator (110) is arranged at the bottom of the outlet (108). An ultrasonic dispersion chamber (109) is fixedly arranged at the bottom of the cyclone separator (110).

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