Air distributor with high-pressure gas diversion and softening system

Abstract

The utility model relates to the technical field of milk powder manufacturing, in particular to an air distributor with a high-pressure gas guiding and softening system, a gas guiding channel is communicated with a gas spraying channel, and a spraying opening of a spraying pipe is located below a gas outlet of the gas spraying channel; connecting frames are arranged on the inner walls of the lower ends of the air injection channels. An air distribution disc is rotatably arranged on the connecting frame, and blades expanding outwards are distributed on the air distribution disc; a jet orifice of each jet pipe is positioned in an area covered by the blades on the air distribution disc; the device further comprises a dust collection system, the front end of a dust collection pipe of the dust collection system is connected with a fine powder recovery pipe made of stainless steel metal, and the fine powder recovery pipe is fixed to the connecting frame. The fine powder recovery pipe penetrates through the center of the air distribution disc and extends below an air outlet of the air injection channel; the suction opening of the fine powder recovery pipe is lower than the injection opening of the injection pipe; continuous uniformity of gas sprayed out of the gas outlet is guaranteed, accumulation of fine powder particles on the surface of a product is avoided, and the quality of the product is improved.

Description

Technical Field

[0001] The present application relates to the technical field of milk powder manufacturing, and in particular to an air distributor. Background Art

[0002] In the production of milk powder, in order to evenly disperse the milk powder particles during the spray drying stage and meet the subsequent user's mixing and taste requirements, an air distributor is required to atomize and evaporate the concentrated milk.

[0003] However, during the production process of existing equipment, when the high-temperature gas is heated unevenly, fine powder particles of milk powder will appear and the fine powder particles will be lifted up. The lifted fine powder particles of milk powder will stick to the air guide channel, which may cause uneven distribution of the high-temperature airflow sprayed by the air distributor, affecting the drying effect of the milk powder and the product quality. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model of this application to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the problems existing in the above-mentioned prior art, the present utility model is proposed.

[0006] An air distributor with a high-pressure gas flow guide and softening system includes an air guide channel connected to an external high-temperature and high-pressure pipeline and a spray pipe for spraying atomized milk;

[0007] The air guide channel is connected to a channel with a vertical air outlet facing downward, which is called an air jet channel, and the jet outlet of the jet pipe is located below the air outlet of the air jet channel;

[0008] A frame structure, called a connecting frame, is provided on the inner wall of the lower end of the jet channel;

[0009] An air distribution plate is rotatably provided on the connecting frame, and blades extending outward are arranged around the center of the air distribution plate. The air distribution plate is connected and arranged above the air outlet;

[0010] At least two injection pipes are arranged circumferentially around the rotation axis of the air distribution plate, and the injection port of each injection pipe is located in the area covered by the blades on the air distribution plate;

[0011] It also includes a dust collection system, wherein the front end of the dust collection pipe of the dust collection system is connected to a stainless steel metal pipe, called a fine powder recovery pipe, and the fine powder recovery pipe is fixed to the connecting frame;

[0012] The fine powder recovery pipe passes through the center of the air distribution plate and extends below the air outlet of the jet channel;

[0013] The suction port of the fine powder recovery pipe is located at a height lower than the injection port of the injection pipe.

[0014] The above design, firstly, realizes evaporation and drying of atomized cream by setting the injection port of the injection pipe below the air outlet of the jet channel, so that the dried and formed milk powder particles are evenly dispersed, and the solubility and preservation of the milk powder are improved; secondly, a connecting frame is set on the inner wall of the lower end of the jet channel, and an air distribution plate is set on the connecting frame. After the gas circulates, the blades of the air distribution plate are pushed by the airflow, driving the air distribution plate to rotate, so as to achieve the effect of uniform distribution of the gas ejected from the air outlet of the jet channel, so that the airflow ejected from the air outlet moves more evenly, reduces the non-uniformity of milk powder and the generation of fine powder particles, and improves the drying effect of milk powder and the particle size uniformity of the product; finally, by setting a dust suction system, the fine powder recovery pipe of the dust suction system is used to absorb the raised fine powder particles, so as to avoid the fine powder particles from the central airflow-free area of ​​the air distribution plate from the air outlet to enter the jet channel and adhere to the inner wall of the jet channel, thereby ensuring the continuous uniformity of the gas ejected from the air outlet, and also avoiding the accumulation of fine powder particles on the surface of the product or causing unevenness, thereby improving the quality of the product.

[0015] Preferably, a plate-shaped structure, called an air guide plate, is provided in the inner cavity connecting the air guide channel and the jet channel, and a plurality of arc-shaped structures, respectively called arc guide plates, are arranged on the air guide plate, and each of the arc guide plates is configured as a curved plate structure that bends from the air guide channel to the jet channel; the arc guide plate can effectively improve the uniformity of gas flow, reduce gas swirl and turbulence, thereby reducing gas resistance and pressure drop, thereby improving the stability of the airflow in the jet channel, thereby improving the milk powder drying effect and the particle size uniformity of the product.

[0016] Preferably, the injection port of the injection pipe is a nozzle with adjustable caliber; the distance between the injection port of the injection pipe and the air outlet of the injection channel is 1-2 cm; by setting the injection port as a nozzle with adjustable caliber, the droplet size of the sprayed mist milk can be adjusted, the milk powder particles can be dried to a size that meets the requirements, and the generation of fine particles can be reduced.

[0017] Preferably, the length of the fine powder recovery tube is 15-25 cm; the diameter of the fine powder recovery tube is 3-5 cm; the height difference between the lower end of the fine powder recovery tube and the lower end of the injection tube is 2-5 cm; the fine powder recovery tube is extended 2-5 cm below the lower end of the injection tube to avoid the fine powder recovery tube absorbing droplets sprayed from the injection tube and prevent the fine powder recovery tube from being blocked, thereby ensuring long-term stable operation of the fine powder recovery tube, thereby ensuring continuous uniformity of the gas sprayed from the outlet, and avoiding accumulation of fine powder particles on the product surface or causing unevenness.

[0018] Preferably, the angle between every two adjacent blades of the air distribution disk is 5°-15°; each of the blades has an angle of 15°-25° with the jet direction of the jet channel; the angle between each blade on the air distribution disk and the rotation plane of the air distribution disk is 15°-30°; the density of the blades is adjusted by adjusting the angle of the blades, and the blades are set to have a certain angle, so that the air distribution disk forms an expansion cover, ensuring that the air passing through the air distribution disk is softened and dispersed, thereby achieving the effect of uniform distribution of the gas ejected from the outlet of the jet channel.

[0019] Preferably, the connecting frame is provided with a cylindrical structure extending downward, called a connecting head, the connecting head is located at the center of the inner cavity of the jet channel, and the air distribution disk is sleeved on the connecting head; the connecting head is also provided with a through hole, and the fine powder recovery pipe passes through the through hole; by providing the connecting head, it is convenient to install the air distribution disk on the connecting head, and it is also convenient for the fine powder recovery pipe to pass through the connecting head, making the installation of the air distribution disk and the fine powder recovery pipe more convenient.

[0020] Preferably, a through hole is provided at the center of the air distribution disk, and a bearing is embedded in the through hole. The central axis of the bearing coincides with the rotation axis of the air distribution disk, the rotating end of the bearing is fixedly connected to the air distribution disk, and the fixed end of the bearing is sleeved on the connecting head; by providing the bearing, the air distribution disk is driven by the airflow to rotate along the connecting head, thereby achieving the effect of evenly distributing the gas.

[0021] Preferably, a section of thread, called a thread section, is provided at the lower end of the connector, and a knob is provided on the thread section in conjunction with the thread, and the knob on the thread section abuts against the lower end of the air distribution disk; by providing the thread section and the knob, the air distribution disk can be prevented from falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following is a brief introduction to the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0023] Figure 1 A schematic diagram of the structure of an air distributor with a high-pressure gas flow guiding and softening system according to an embodiment of the utility model;

[0024] Figure 2 A schematic diagram of the wind path structure of an air distributor with a high-pressure gas flow guiding and softening system according to an embodiment of the utility model;

[0025] Figure 3 A schematic diagram of the parts structure of an air distribution plate and a connecting frame in an air distributor with a high-pressure gas flow guiding and softening system according to an embodiment of the utility model. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned purposes, features and advantages of the present invention more understandable, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general proportion, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0029] Secondly, the "one embodiment" or "embodiment" referred to herein refers to a specific feature, structure or characteristic that can be included in at least one implementation of the utility model. The "in one embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0030] Example 1

[0031] Reference Figure 1-Figure 3 This embodiment provides an air distributor with a high-pressure gas flow guide and softening system, including an air guide channel 1 connected to an external high-temperature and high-pressure pipeline and a spray pipe 2 for spraying atomized milk.

[0032] The air guide channel 1 is connected to a channel with a vertical air outlet 31 facing downward, which is called the jet channel 3. The jet port of the jet pipe 2 is located below the air outlet 31 of the jet channel 3. A frame structure, called the connecting frame 4, is provided on the inner wall at the lower end of the jet channel 3. An air distribution disk 5 is rotatably provided on the connecting frame 4. The air distribution disk 5 has outwardly spreading blades arranged around the center. The air distribution disk 5 is connected and arranged above the air outlet 31. At least two jet pipes 2 are arranged in a circle around the rotation axis of the air distribution disk 5. The jet port of each jet pipe 2 is located in the area covered by the blades on the air distribution disk 5. A dust collection system is also included. The front end of the dust collection pipe of the dust collection system is connected to a stainless steel metal pipe, called a fine powder recovery pipe 6, which is fixed to the connecting frame 4. The fine powder recovery pipe 6 passes through the center of the air distribution disk 5 and extends to below the air outlet 31 of the jet channel 3. The suction port position of the fine powder recovery pipe 6 is lower than the height of the jet port of the jet pipe 2. Firstly, by setting the injection port of the injection pipe 2 below the air outlet 31 of the air jet channel 3, the evaporation and drying of the atomized cream is realized, so that the dried and formed milk powder particles are evenly dispersed, and the solubility and preservation of the milk powder are improved; secondly, a connecting frame 4 is arranged on the inner wall of the lower end of the air jet channel 3, and an air distribution plate 5 is arranged on the connecting frame 4. After the gas circulates, the blades of the air distribution plate 5 are pushed by the air flow, driving the air distribution plate 5 to rotate, so as to achieve the effect of uniform distribution of the gas ejected from the air outlet 31 of the air jet channel 3, so that the air flow ejected from the air outlet 31 moves more evenly, reducing the non-uniformity of milk powder and the generation of fine powder particles, and improving the drying effect of milk powder and the particle size uniformity of the product; finally, by setting a dust suction system, the fine powder recovery pipe 6 of the dust suction system is used to absorb the raised fine powder particles, so as to avoid the fine powder particles from the central airflow-free area of ​​the air distribution plate 5 from the air outlet to enter the air jet channel 3 and adhere to the inner wall of the air jet channel 3, thereby ensuring the continuous uniformity of the gas ejected from the air outlet 31, and also avoiding the accumulation of fine powder particles on the surface of the product or causing unevenness, thereby improving the quality of the product.

[0033] A plate-shaped structure, called an air guide plate 7, is provided in the inner cavity where the air guide channel 1 is connected to the jet channel 3. A plurality of arc-shaped structures, called arc guide plates, are arranged on the air guide plate 7. Each of the arc guide plates is provided as a curved plate structure that bends from the air guide channel 1 to the jet channel 3. The arc guide plates can effectively improve the uniformity of gas flow, reduce the swirl and turbulence of the gas, thereby reducing the resistance and pressure drop of the gas, thereby improving the stability of the airflow in the jet channel 3, thereby improving the drying effect of the milk powder and the uniformity of the particle size of the product.

[0034] The injection port of the injection pipe 2 is a nozzle with adjustable caliber; the distance between the injection port of the injection pipe 2 and the air outlet 31 of the injection channel 3 is 1-2 cm; by setting the injection port as a nozzle with adjustable caliber, the droplet size of the sprayed mist milk can be adjusted, the milk powder particles can be dried to a size that meets the requirements, and the generation of fine particles can be reduced.

[0035] The length of the fine powder recovery pipe 6 is 15-25 cm; the diameter of the fine powder recovery pipe 6 is 3-5 cm; the height difference between the lower end of the fine powder recovery pipe 6 and the lower end of the injection pipe 2 is 2-5 cm; the fine powder recovery pipe 6 is extended 2-5 cm below the lower end of the injection pipe 2 to prevent the fine powder recovery pipe 6 from absorbing droplets sprayed from the injection pipe 2 and prevent the fine powder recovery pipe 6 from being blocked, thereby ensuring that the fine powder recovery pipe 6 works stably for a long time, thereby ensuring the continuous uniformity of the gas sprayed from the gas outlet 31, and also preventing fine powder particles from accumulating on the product surface or causing unevenness.

[0036] The angle between every two adjacent blades of the air distribution disk 5 is 5°-15°; each of the blades has an angle of 15°-25° with the jet direction of the jet channel 3; the angle between each blade on the air distribution disk 5 and the rotation plane of the air distribution disk 5 is 15°-30°; the density of the blades is adjusted by adjusting the angle of the blades, and the blades are set to have a certain angle, so that the air distribution disk 5 forms an expansion cover, ensuring that the air passing through the air distribution disk 5 is softened and dispersed, thereby achieving the effect of uniform distribution of the gas ejected from the outlet 31 of the jet channel 3.

[0037] When in use, first adjust the caliber of the injection port of the injection pipe 2 to control the droplets of milk sprayed from the injection port to a suitable size, connect the air guide channel 1 with the external high-temperature and high-pressure pipeline, and the high-temperature and high-pressure gas is transported to the jet channel 3 through the air guide channel 1. The air guide plate 7 in the air guide channel 1 guides the high-temperature and high-pressure gas to the jet channel 3 through the arc-shaped guide plate to reduce the swirl and turbulence of the gas. The high-temperature and high-pressure gas in the jet channel 3 is sprayed to the outlet 31 through the air distribution plate 5. The air distribution plate 5 is driven to rotate by the circulating gas to achieve the effect of uniform distribution of the gas sprayed from the outlet 31 of the jet channel 3. The effect is that the airflow sprayed from the air outlet 31 moves more evenly, the injection port of the injection pipe 2 is located in the area covered by the blades on the air distribution plate 5, ensuring that the atomized milk sprayed from the injection pipe 2 is covered in the high-temperature airflow for drying, and then the dust suction system is turned on. The fine powder recovery pipe 6 of the dust suction system absorbs the raised fine powder particles to prevent the fine powder particles from entering the jet channel 3 from the air outlet through the air outlet recoil from the air flow-free area in the center of the air distribution plate 5 and adhering to the inner wall of the jet channel 3, thereby ensuring the continuous uniformity of the gas sprayed from the air outlet 31, and also preventing the fine powder particles from accumulating on the product surface or causing unevenness, thereby improving the quality of the product.

[0038] Example 2

[0039] refer to Figure 1 and Figure 3 , which is the second embodiment of the utility model, and this embodiment is based on the previous embodiment.

[0040] The connecting frame 4 is provided with a columnar structure extending downward, called a connecting head 41, and the connecting head 41 is located at the center of the inner cavity of the jet channel 3, and the air distribution plate 5 is sleeved on the connecting head 41; the connecting head 41 is also provided with a through hole, and the fine powder recovery pipe 6 passes through the through hole; by providing the connecting head 41, it is convenient to install the air distribution plate 5 on the connecting head 41, and it is also convenient for the fine powder recovery pipe 6 to pass through the connecting head 41, so that the installation of the air distribution plate 5 and the fine powder recovery pipe 6 is more convenient.

[0041] A through hole is provided at the center of the air distribution disk 5, and a bearing 51 is embedded in the through hole. The central axis of the bearing 51 coincides with the rotation axis of the air distribution disk 5, and the rotating end of the bearing 51 is fixedly connected to the air distribution disk 5, and the fixed end of the bearing 51 is sleeved on the connecting head 41. By providing the bearing 51, the air distribution disk 5 is driven by the airflow to rotate along the connecting head 41, so as to achieve the effect of evenly distributing the gas.

[0042] The lower end of the connector 41 is provided with a section of thread, called a thread section, and the thread section is provided with a knob 8 in conjunction with the thread, and the knob 8 on the thread section abuts against the lower end of the air distribution disk 5; by providing the thread section and the knob 8, the air distribution disk 5 can be prevented from falling off.

[0043] During use, when the air distribution disk 5 needs to be installed into the jet channel 3, the bearing 51 is first embedded in the through hole of the air distribution disk 5, and then the fixed end of the bearing 51 is sleeved on the connecting head 41, and the knob 8 is screwed onto the threaded section. The knob 8 rests on the lower end of the air distribution disk 5 to prevent the air distribution disk 5 from falling off. By setting the bearing 51, the air distribution disk 5 is driven by the airflow to rotate along the connecting head 41, thereby achieving the effect of evenly distributing the gas.

[0044] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and ratio of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present utility model. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also an equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to a specific embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0045] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0046] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An air distributor with a high-pressure gas flow-guiding and softening system, comprising an air-guiding channel connected to an external high-temperature and high-pressure pipeline and a spray pipe for spraying atomized milk, characterized in that: The air guide channel is connected to a channel with a vertical air outlet facing downward, which is called an air jet channel, and the jet outlet of the jet pipe is located below the air outlet of the air jet channel; A frame structure, called a connecting frame, is provided on the inner wall of the lower end of the jet channel; An air distribution plate is rotatably provided on the connecting frame, and blades extending outward are arranged around the center of the air distribution plate. The air distribution plate is connected and arranged above the air outlet; At least two injection pipes are arranged circumferentially around the rotation axis of the air distribution plate, and the injection port of each injection pipe is located in the area covered by the blades on the air distribution plate; It also includes a dust collection system, wherein the front end of the dust collection pipe of the dust collection system is connected to a stainless steel metal pipe, called a fine powder recovery pipe, and the fine powder recovery pipe is fixed to the connecting frame; The fine powder recovery pipe passes through the center of the air distribution plate and extends below the air outlet of the jet channel; The suction port of the fine powder recovery pipe is located at a height lower than the injection port of the injection pipe.

2. The air distributor with high-pressure gas flow-guiding and softening system according to claim 1, characterized in that: A plate-shaped structure, called an air guide plate, is arranged in the inner cavity where the air guide channel and the jet channel are connected. A plurality of arc-shaped structures, called arc guide plates, are arranged on the air guide plate. Each of the arc guide plates is a curved plate structure that bends from the air guide channel to the jet channel.

3. The air distributor with high-pressure gas flow-guiding and softening system according to claim 2, characterized in that: The injection port of the injection pipe is an injection port with adjustable caliber; The distance between the injection port of the injection pipe and the air outlet of the injection channel is 1-2 cm.

4. The air distributor with high-pressure gas flow-guiding and softening system according to claim 3, characterized in that: The length of the fine powder recovery tube is 15-25 cm; The diameter of the fine powder recovery tube is 3-5 cm; The height difference between the lower end of the fine powder recovery pipe and the lower end of the injection pipe is 2-5 cm.

5. The air distributor with high-pressure gas flow-guiding and softening system according to claim 1, characterized in that: The angle between every two adjacent blades of the air distribution plate is 5°-15°; Each of the blades has an angle of 15°-25° with the jet direction of the jet channel; The included angle between each blade on the air distribution disk and the rotation plane of the air distribution disk is 15°-30°.

6. The air distributor with high-pressure gas flow-guiding and softening system according to claim 5, characterized in that: The connecting frame is provided with a columnar structure extending downward, called a connecting head, the connecting head is located at the center of the inner cavity of the jet channel, and the air distribution plate is sleeved on the connecting head; The connector is also provided with a through hole, through which the fine powder recovery pipe passes.

7. The air distributor with high-pressure gas flow-guiding and softening system according to claim 6, characterized in that: A through hole is provided at the center of the air distribution disk, a bearing is embedded in the through hole, the central axis of the bearing coincides with the rotation axis of the air distribution disk, the rotating end of the bearing is fixedly connected to the air distribution disk, and the fixed end of the bearing is sleeved on the connecting head.

8. The air distributor with high-pressure gas flow guiding and softening system according to claim 7, characterized in that: The lower end of the connector is provided with a section of thread, called a thread section, and a knob is provided on the thread section in cooperation with the thread, and the knob on the thread section abuts against the lower end of the air distribution plate.

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