A nozzle disc device for an air flow pulse mixer

Abstract

The present invention relates to a spray disc device for an air flow pulse mixer. The upper connecting flange and the lower connecting flange are fixedly connected. The butterfly valve plate is horizontally arranged between the upper connecting flange and the lower connecting flange. A blowing port is formed on the side wall of the upper connecting flange. The nozzle valve is fixedly arranged outside the blowing port. The blowing port is arranged at a deflection angle with the side wall of the upper connecting flange. The blowing ports are evenly distributed on the side wall of the upper connecting flange and the deflection angle of the blowing ports is in the clockwise direction. When the nozzle valves of the blowing ports start to blow air, one or more spiral upward mixed air flows will be formed to mix the materials evenly. Moreover, the distance between the blowing port and the upper surface of the butterfly valve plate is relatively close, avoiding the phenomenon that the materials on the upper surface of the butterfly valve plate cannot be mixed. By combining the control of a single nozzle valve and multiple nozzle valves for blowing, and adjusting the blowing sequence, etc., the purpose of quickly achieving uniform mixing of different materials can be realized, making the control mode of the mixer more flexible and diverse.

Description

Technical Field

[0001] The present invention relates to the technical field of powder mixing equipment, and in particular to a spraying disc device for an air-pulse mixer. Background Art

[0002] Air-pulse mixing equipment is widely used in the production processes of medicines and foods due to its low energy consumption and simple structure. In the prior art, the air-pulse mixing equipment uses the method of opening holes in an inflation flange to blow compressed air into the mixing equipment. In the method of opening holes in the flange, there is a very small-diameter tubular channel between the gas valve and the material. When the gas valve is closed, the material will immediately reverse into this tubular channel. Because this tubular channel has a complex structure and a small diameter, it is very difficult to clean it completely, and it is easy to cause cross-contamination to the material in the tank. Due to the existence of this problem, it also makes it very difficult to use the air-pulse mixing process in sterile production. Generally, the inflation flange and the blanking butterfly valve are designed separately, resulting in a relatively high distance between the air-blowing port of the flange and the valve plate of the butterfly valve, and there is a phenomenon that the upper surface of the butterfly valve plate cannot be mixed during the mixing process. The structure of the air-blowing flange is that several small holes are designed on the flange and are connected by one or at most two channels. The problems of this structure are that there are few air-blowing control valves, a large amount of air is required, and the control is single.

[0003] Therefore, it is necessary to provide a spraying disc device for an air-pulse mixer to solve the above technical problems and make the materials in the mixing machine tank mixed evenly without dead angles. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a spraying disc device for an air-pulse mixer. The spraying ports of the spraying disc device are evenly distributed and the deflection angles of the spraying ports are in the clockwise direction, so as to form a spiral upward mixing air flow in the spraying disc device and ensure that the materials in the mixing machine tank are mixed evenly.

[0005] To solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A spray disc device for an air flow pulse mixer, including a spray disc device. The spray disc device includes an upper connecting flange, a lower connecting flange, a nozzle valve and a butterfly valve plate. The upper connecting flange is fixedly connected to the lower connecting flange. The butterfly valve plate is horizontally arranged between the upper connecting flange and the lower connecting flange. A blowout port is formed on the side wall of the upper connecting flange. The nozzle valve is fixedly arranged outside the blowout port. The blowout port is arranged at a deflection angle with the side wall of the upper connecting flange. A sealing head is provided at the front end of the air outlet of the nozzle valve. When air is supplied, the sealing head of the nozzle valve opens, and compressed air is blown into the spray disc device through the blowout port. Due to the pressure effect, the powder material in the spray disc device will not enter the nozzle valve. When no air is supplied, the sealing head first presses tightly against the air outlet, and then the compressed air is closed. The pressed sealing head is basically in the same plane as the side wall of the upper connecting flange, and no dead angle will be formed between the sealing head and the side wall of the upper connecting flange, avoiding incomplete cleaning and secondary pollution of the material.

[0007] Preferably, the blowout ports are evenly distributed on the side wall of the upper connecting flange, and the deflection angle of the blowout ports is in the clockwise direction. Due to the deflection angle of the blowout ports with the side wall of the upper connecting flange in the clockwise direction, when the nozzle valves of the blowout ports start to blow air, one or more spiral upward mixed airflows will be formed to mix the materials evenly.

[0008] Preferably, the deflection angle of the blowout ports is 20° - 35°. The deflection angle of the blowout ports is the angle between the connection line from the blowout port to the center point of the butterfly valve plate and the blowout angle center line of the blowout port.

[0009] Preferably, the lower vertex of the blowout port is flush with the upper surface of the butterfly valve plate. Such a design makes the distance between the blowout port and the upper surface of the butterfly valve plate relatively close. During the process of blowing and mixing the materials at the blowout port, the phenomenon that the materials on the upper surface of the butterfly valve plate cannot be mixed is avoided, so that the materials in the entire mixing machine tank can be mixed evenly.

[0010] Preferably, the number of the blowout ports is at least three, and the nozzle valves of each blowout port can be controlled to blow air separately. Compressed air enters the spray disc device through the blowout ports of the nozzle valves alone or simultaneously in several groups, and at the same time rotates upward in a spiral and enters the mixing machine tank. Through the control of the mixing parameters of the air flow pulse mixer, each nozzle valve can be controlled separately, which can maximize the local blowing air volume and achieve the best mixing effect at the blown position. Or two or more nozzle valves can blow air simultaneously to maximize the blowing range and mix all the materials in the mixing machine tank. Then, through the combined control of blowing air by a single nozzle valve and multiple nozzle valves, and adjusting the blowing sequence, etc., the purpose of quickly mixing different materials evenly can be achieved, making the control mode of the mixing machine more flexible and diverse.

[0011] Preferably, the area of the blowing region of the blowing port is 60% of the area of the butterfly valve plate. Since the blowing ports are uniformly arranged on the side wall of the upper connecting flange and the height position is close to the butterfly valve plate, the number of blowing ports multiplied by the area of the blowing region is approximately equal to twice the area of the butterfly valve plate, so it can ensure that there are no dead corners during the mixing process.

[0012] Preferably, the spraying disc device further includes a pneumatic actuator and a fixing bracket. The pneumatic actuator is respectively connected to the outer side walls of the upper connecting flange and the lower connecting flange through the fixing bracket. The pneumatic actuator can also be replaced by a rotating motor or other rotating elements.

[0013] Preferably, the spraying disc device further includes a coupling. One end of the central axis of the butterfly valve plate is connected to the rotating shaft of the pneumatic actuator through the coupling. After the pneumatic actuator is ventilated, its rotating shaft drives the central axis of the butterfly valve plate to rotate through the coupling, so that the butterfly valve plate rotates to achieve the purpose of opening the butterfly valve plate for discharging materials.

[0014] Preferably, valve plate sealing rings are respectively arranged on the outer peripheries where the two ends of the central axis of the butterfly valve plate contact the upper connecting flange and the lower connecting flange. The valve plate sealing rings keep the butterfly valve plate sealed between the upper connecting flange and the lower connecting flange, ensuring the airtightness of the spraying disc device.

[0015] Preferably, the upper connecting flange of the spraying disc device is fixedly connected to the bottom flange of the mixing tank body provided at the bottom end of the mixing tank. The bottom end of the mixing tank body is provided with a bottom flange of the mixing tank, and the upper connecting flange of the spraying disc device is fixedly connected to the bottom flange of the mixing tank. The powder materials in the mixing tank body are blown inward by the nozzle valves of the spraying disc device for material mixing. After being evenly mixed, the rotating shaft of the pneumatic actuator drives the butterfly valve plate to rotate, thereby opening the butterfly valve plate, and discharging the evenly mixed materials through the butterfly valve plate.

[0016] The beneficial effects of the present invention are as follows:

[0017] Since the present invention adopts the above technical solutions, the blowing ports are evenly distributed on the side wall of the upper connecting flange and the deflection angle of the blowing ports is in the clockwise direction. When the nozzle valves of the blowing ports are started to blow air, one or more spiral upward mixing airflows will be formed to mix the materials evenly. And the distance between the blowing ports and the upper surface of the butterfly valve plate is relatively close, avoiding the phenomenon that the materials on the upper surface of the butterfly valve plate cannot be mixed, so that the materials in the entire mixing tank body can be mixed evenly. By combining the control of a single nozzle valve and multiple nozzle valves for blowing, and adjusting the blowing sequence, etc., the purpose of quickly mixing different materials evenly can be achieved, making the control method of the mixing machine more flexible and diverse.

[0018] The above description is only an overview of the technical solution of the present invention. In order to understand the technical means of the present invention more clearly and be implemented in accordance with the content of the specification, and at the same time to make the above and other purposes, technical features and advantages of the present invention more understandable, one or more preferred embodiments are listed below and described in detail with reference to the accompanying drawings as follows. Description of the Drawings

[0019] One or more embodiments are exemplarily illustrated by the pictures in the corresponding accompanying drawings. These exemplary illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated specifically, the drawings in the figures do not constitute a proportional limitation.

[0020] Figure 1 Shows an axial sectional structural schematic diagram of a spray disc device for an air flow pulse mixer of the present invention.

[0021] Figure 2 Shows a radial sectional structural schematic diagram of a spray disc device for an air flow pulse mixer of the present invention.

[0022] Figure 3 Shows an installation position structural schematic diagram of a spray disc device for an air flow pulse mixer of the present invention.

[0023] Description of the main reference numerals:

[0024] 1 - Nozzle valve, 2 - Upper connecting flange, 3 - Valve plate sealing ring, 4 - Butterfly valve plate, 5 - Lower connecting flange, 6 - Coupling, 7 - Fixed bracket, 8 - Pneumatic actuator, 9 - Injection port, 10 - Injection area, 11 - Mixer tank body, 12 - Tank bottom flange, 13 - Spray disc device. Detailed Description of the Embodiments

[0025] The following combines the accompanying drawings to describe in detail the specific embodiments of the present invention. However, it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0026] Unless otherwise clearly stated, throughout the specification and claims, the term "comprise" or its variants such as "comprising" or "including" etc. will be understood to include the stated elements or components, without excluding other elements or other components.

[0027] In this article, for the convenience of description, spatial relative terms such as "below", "beneath", "under", "above", "over", "on" etc. may be used to describe the relationship between one element or feature and another element or feature in the drawings. It should be understood that the spatial relative terms are intended to encompass different orientations of the object in use or operation in addition to the orientation depicted in the figures. For example, if the object in the figure is flipped, the element described as "below" or "under" another element or feature will be oriented "above" the said element or feature. Thus, the exemplary term "below" can encompass both the directions of below and above. The object may also have other orientations (rotated 90 degrees or other orientations) and the spatial relative terms used herein should be interpreted accordingly.

[0028] As Figures 1 - 3 shown, a nozzle plate device for an air-pulse mixer includes a nozzle plate device 13, and the nozzle plate device 13 includes an upper connecting flange 2, a lower connecting flange 5, a nozzle valve 1 and a butterfly valve plate 4. The upper connecting flange 2 and the lower connecting flange 5 are fixedly connected by bolts. The lower connecting flange 5 is a quick-install flange. The butterfly valve plate 4 is horizontally arranged between the upper connecting flange 2 and the lower connecting flange 5. A blowing port 9 is formed on the side wall of the upper connecting flange 2. The nozzle valve 1 is fixedly arranged outside the blowing port 9. The blowing port 9 is arranged at a deflection angle with the side wall of the upper connecting flange 2.

[0029] A sealing head is provided at the front end of the air outlet of the nozzle valve 1. When air is supplied, the sealing head of the nozzle valve 1 opens, and compressed air is blown into the nozzle plate device 13 through the blowing port 9. Due to the pressure effect, the powder material in the nozzle plate device 13 will not enter the nozzle valve 1. When air is not supplied, the sealing head first presses against the air outlet, and then the compressed air is closed. The pressed sealing head is basically in the same plane as the side wall of the upper connecting flange 2, and no dead angle will be formed between the sealing head and the side wall of the upper connecting flange 2, avoiding unclean cleaning and secondary pollution of the material.

[0030] The deflection angle of the blowing port 9 is 20° - 35°. The deflection angle of the blowing port 9 is the angle between the line connecting the center point of the blowing port 9 to the butterfly valve plate 4 and the blowing angle center line of the blowing port 9. The blowing ports 9 are evenly arranged on the side wall of the upper connecting flange 2, and the deflection angles of the blowing ports 9 are in the same clockwise direction. Due to the blowing ports 9 having a deflection angle in the same clockwise direction with the side wall of the upper connecting flange 2, when the nozzle valves 1 of the blowing ports 9 start to blow air, one or more spiral upward mixing airflows will be formed to mix the materials.

[0031] The lower vertex of the injection port 9 is flush with the upper surface of the butterfly valve plate 4. Such a design makes the distance between the injection port 9 and the upper surface of the butterfly valve plate 4 relatively close. During the process of injecting the mixed material from the injection port 9, it avoids the phenomenon that the material on the upper surface of the butterfly valve plate 4 cannot be mixed, and makes the materials in the entire mixer tank 11 be evenly mixed.

[0032] The number of the injection ports 9 is at least three, and the nozzle valve 1 of each injection port 9 can be independently controlled for air injection. Compressed air enters the spraying disc device 13 through the injection ports 9 of the nozzle valve 1 alone or in several groups simultaneously, and then spirally rotates upward into the mixer tank 11. Through the control of the mixing parameters of the air flow pulse mixer, each nozzle valve 1 can be independently controlled, which can maximize the local injection air volume and achieve the best mixing effect at the injected position; or two or more nozzle valves 1 can inject simultaneously to maximize the injection range and mix all the materials in the mixer tank 11; furthermore, through the combined control of the single nozzle valve 1 and multiple nozzle valves 1 for injection, and by adjusting the injection sequence, etc., the purpose of quickly mixing different materials evenly can be achieved, making the control mode of the mixer more flexible and diverse.

[0033] The area of the injection area 10 of the injection port 9 is 60% of the area of the butterfly valve plate 4. Since the injection ports 9 are evenly arranged on the side wall of the upper connecting flange 2 and the height position is close to the butterfly valve plate 4, the number of the injection ports 9 multiplied by the area of the injection area 10 is approximately equal to twice the area of the butterfly valve plate 4, so it can ensure that there is no dead angle during the mixing process.

[0034] The spraying disc device 13 further includes a pneumatic actuator 8 and a fixing bracket 7. The pneumatic actuator 8 is respectively connected to the outer side walls of the upper connecting flange 2 and the lower connecting flange 5 through the fixing bracket 7. The spraying disc device 13 further includes a coupling 6. One end of the central axis of the butterfly valve plate 4 is connected to the rotating shaft of the pneumatic actuator 8 through the coupling 6. The pneumatic actuator 8 can also be replaced by a rotating motor or other rotating elements. After the pneumatic actuator 8 is ventilated, its rotating shaft drives the central axis of the butterfly valve plate 4 to rotate through the coupling 6, so that the butterfly valve plate 4 rotates to achieve the purpose of opening the butterfly valve plate 4 for discharging materials.

[0035] Valve plate sealing rings 3 are respectively arranged on the outer peripheries where the two ends of the central axis of the butterfly valve plate 4 are in contact with the upper connecting flange 2 and the lower connecting flange 5. The valve plate sealing rings 3 keep the butterfly valve plate 4 sealed with the upper connecting flange 2 and the lower connecting flange 5, ensuring the airtightness of the spraying disc device 13.

[0036] As Figure 3As shown, the upper connecting flange 2 of the spray disc device 13 is fixedly connected to the bottom flange 12 of the mixer tank body 11 provided at the bottom end of the mixer tank body 11 by bolts. The bottom end of the mixer tank body 11 is provided with the bottom flange 12 of the tank body, and the upper connecting flange 2 of the spray disc device 13 is fixedly connected to the bottom flange 12 of the tank body by bolts. The powder material in the mixer tank body 11 is blown inward through the nozzle valve 1 of the spray disc device 13 for mixing of the materials. After being evenly mixed, the butterfly valve plate 4 is rotated by the rotating shaft of the pneumatic actuator 8 to open the butterfly valve plate 4, and the evenly mixed materials are discharged through the butterfly valve plate 4.

[0037] The foregoing description of the specific exemplary embodiments of the present invention is for purposes of illustration and exemplification. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it is obvious that many changes and variations are possible in light of the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical applications, so that those skilled in the art can implement and utilize various different exemplary embodiments of the present invention, as well as various different selections and changes. Any simple modifications, equivalent variations and modifications made to the above exemplary embodiments shall fall within the protection scope of the present invention.

Claims

1. A spraying disc device for an air flow pulse mixer, characterized in that, It includes a spray disc device (13), and the spray disc device (13) includes an upper connecting flange (2), a lower connecting flange (5), a nozzle valve (1) and a butterfly valve plate (4). The upper connecting flange (2) is fixedly connected to the lower connecting flange (5). The butterfly valve plate (4) is horizontally arranged between the upper connecting flange (2) and the lower connecting flange (5). A blowing port (9) is formed on the side wall of the upper connecting flange (2). The nozzle valve (1) is fixedly arranged outside the blowing port (9). A sealing head is provided at the front end of the air outlet of the nozzle valve (1). After being pressed, the sealing head is substantially in the same plane as the side wall of the upper connecting flange (2). The blowing port (9) is arranged at a deflection angle with the side wall of the upper connecting flange (2); The blowing ports (9) are evenly distributed on the side wall of the upper connecting flange (2). The deflection angle of the blowing ports (9) is in the clockwise direction. The blowing ports (9) are trumpet-shaped from outside to inside. The area of the blowing area (10) of the blowing ports (9) is 60% of the area of the butterfly valve plate (4); The lower vertex of the blowing port (9) is flush with the upper surface of the butterfly valve plate (4).

2. The spraying disc device for an air flow pulse mixer according to claim 1, wherein The deflection angle of the blowing port (9) is 20° - 35°.

3. The spout disc device for an air flow pulse mixer according to claim 2, characterized in that, The number of the blowing ports (9) is at least three, and the nozzle valves (1) of each blowing port (9) can be individually controlled to blow air.

4. The nozzle disc device for an air flow pulse mixer according to claim 1, characterized in that, The spray disc device (13) further includes a pneumatic actuator (8) and a fixing bracket (7). The pneumatic actuator (8) is respectively on the outer side walls of the upper connecting flange (2) and the lower connecting flange (5) through the fixing bracket (7).

5. The nozzle disc device for an air flow pulse mixer according to claim 4, characterized in that, The spray disc device (13) further includes a coupling (6). One end of the central axis of the butterfly valve plate (4) is connected to the rotating shaft of the pneumatic actuator (8) through the coupling (6).

6. The nozzle disc device for an air flow pulse mixer according to claim 5, characterized in that, Valve plate sealing rings (3) are respectively provided on the outer peripheries where the two ends of the central axis of the butterfly valve plate (4) contact the upper connecting flange (2) and the lower connecting flange (5).

7. The nozzle disc device for an air flow pulse mixer according to claim 1, characterized in that, The upper connecting flange (2) of the spray disc device (13) is fixedly connected to the tank bottom flange (12) arranged at the bottom end of the mixer tank body (11).

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