Sterile conveying and metering system for powder product production

Abstract

The utility model relates to the technical field of powder product processing equipment, in particular to a sterile conveying and metering system for powder product production, which comprises a microwave sterilization device, a pneumatic conveying device and a metering tank. A feeding bin is arranged at the front end of the microwave sterilization device, and a discharging bin is arranged at the rear end of the microwave sterilization device; the discharging bin is matched with a pneumatic conveying device, and the pneumatic conveying device comprises a conveyor, an induced draft fan and a bag-type dust collector; blowing in high-pressure air through a conveyor, and conveying the materials into a metering tank under the traction of an induced draft fan; an air sterilization filter is installed on the conveyor, and a bag-type dust collector is located above the metering tank and achieves separation of powder and air. The microwave sterilization device and the pneumatic conveying mode are adopted, sterile and stable conveying of powder can be achieved, separation of the powder and air and metering of the powder can be achieved, and use in actual production is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of powder product processing equipment, in particular to an aseptic conveying and metering system for powder product production. Background Art

[0002] The production process of powder products requires mixing, conveying, mixing and molding. In order to ensure product quality and avoid bacterial contamination during production, a sterile environment needs to be maintained during the transportation of raw powder materials to ensure product safety.

[0003] During the production of existing powder products, raw powders are generally sterilized using microwave sterilization devices. Microwave sterilization devices can achieve rapid sterilization at a lower temperature, have a good sterilization effect and can ensure production efficiency. However, after the existing raw powders are sterilized by microwave sterilization devices, they are still in extensive contact with air when they are transported to metering tanks. This greatly increases the chance of the raw materials being contaminated by bacteria, which is directly related to the quality and safety of the final product.

[0004] Therefore, how to achieve aseptic transportation after microwave sterilization to ensure product quality and safety is a problem that needs to be solved. Utility Model Content

[0005] The purpose of the utility model is to address the deficiencies of the above-mentioned prior art and to provide a sterile conveying and metering system for powder product production, so as to achieve the purpose of sterile conveying and metering in the production process of powder products.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical solution: a sterile conveying and metering system for powder product production, including a microwave sterilization device and a metering tank. The metering tank is located at the rear end of the microwave sterilization device, and the microwave sterilization device and the metering tank are connected by a pneumatic conveying device.

[0007] Furthermore, a feed bin is provided in front of the microwave sterilization device, and a discharge bin is provided behind the microwave sterilization device; the feed bin is located above the belt conveyor of the microwave sterilization device, and the belt conveyor of the microwave sterilization device extends to the top of the discharge bin.

[0008] Furthermore, the pneumatic conveying device includes a conveyor, an induced draft fan and a bag dust collector, one end of the conveyor is connected to the outlet below the discharge bin, and the other end of the conveyor is respectively connected to the high-pressure fan and the conveying pipe, and the conveying pipe is connected to the feed port of the metering tank; the bag dust collector is arranged above the metering tank, the bottom of the bag dust collector is connected to the metering tank, and the clean air outlet of the bag dust collector is connected to the induced draft fan through a negative pressure pipe.

[0009] Furthermore, the conveyor is horizontally placed in a "Y" shape, including a horizontal branch part, a horizontal leg part and an inclined leg part. The horizontal branch part is connected to the outlet below the discharge bin, the horizontal leg part is connected to the conveying pipe, and the inclined leg part is connected to the high-pressure fan.

[0010] Furthermore, an air sterilization filter is installed on the inclined leg portion.

[0011] Furthermore, a dust filter is installed on the negative pressure pipe.

[0012] Furthermore, control valves are installed on both the delivery pipeline and the negative pressure pipeline.

[0013] Furthermore, the metering tank includes a tank body, a bracket installed around the tank body, a discharge port provided at the bottom of the tank body, and a discharge valve installed at the discharge port; a hanging ear is provided around the top of the tank body, the hanging ear cooperates with the bracket, and a cantilever beam weighing sensor is installed between the hanging ear and the bracket.

[0014] Furthermore, an arch breaker is installed on the side wall below the metering tank near the discharge port.

[0015] Furthermore, there are multiple metering tanks, and correspondingly, multiple delivery branches are drawn out from the delivery pipeline, the delivery branches correspond one-to-one to the metering tanks, and a control valve is installed on each delivery branch; correspondingly, multiple negative pressure branches are drawn out from the negative pressure pipeline, the negative pressure branches correspond one-to-one to the metering tanks, and a control valve is installed on each negative pressure branch.

[0016] Beneficial effects of the utility model:

[0017] 1. The utility model can sterilize powder materials through microwave sterilization device. Microwave sterilization can achieve a rapid sterilization process at a lower temperature, which helps to avoid contamination of raw materials and improve production efficiency;

[0018] 2. The utility model uses pneumatic conveying to transport the powder to the metering tank, which makes the transportation more stable. At the same time, an air sterilizing filter is set on the conveyor to filter and sterilize the air to avoid contamination of the raw materials.

[0019] 3. The utility model realizes the separation of powder and air through a pulse bag dust collector, and a dust filter is arranged at the front end of the induced draft fan, which effectively ensures the stable use of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This utility model Figure 1 A partial enlarged schematic diagram of part A;

[0022] Figure 3 It is a schematic diagram of the overall structure of the metering tank of the utility model.

[0023] The names corresponding to the marks in the figure are:

[0024] 1. Microwave sterilization device; 11. Cooling pipe; 2. Feed silo; 3. Discharge silo; 4. Conveyor; 41. Horizontal branch section; 42. Horizontal support leg section; 43. Inclined support leg section; 431. Air sterilizing filter; 5. Conveying pipe; 51. First conveying branch pipe; 52. Second conveying branch pipe; 53. Third conveying branch pipe; 6. Measuring tank; 61. First measuring tank; 611. Bracket; 612. Tank body; 613. Bag collector; 614. Discharge port; 615. Discharge valve; 616. Arch breaker; 617. Hanging ear; 62. Second measuring tank; 63. Third measuring tank; 7. Induced draft fan; 71. Negative pressure pipe; 711. First negative pressure branch pipe; 712. Second negative pressure branch pipe; 713. Third negative pressure branch pipe; 72. Dust filter; 8. Cantilever beam weighing sensor. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field fall within the scope of protection of the present invention.

[0026] Embodiments of the present utility model:

[0027] like Figure 1-3 As shown, in this embodiment, a microwave sterilization device 1 is provided, a metering tank 6 is provided behind the microwave sterilization device 1, and a pneumatic conveying system is provided between the microwave sterilization device 1 and the metering tank 6. The powder sterilized by the microwave sterilization device 1 is conveyed to the metering tank 6 for metering through the pneumatic conveying device.

[0028] A cooling pipe 11 is provided in the microwave sterilization device 1, which is used to cool the microwave generator; a feed bin 2 is provided at the front end of the microwave sterilization device 1, and the outlet below the feed bin 2 cooperates with the belt conveyor of the microwave sterilization device 1. The powder falls onto the belt conveyor through the feed bin 2 and is then transported to the microwave sterilization device 1 for sterilization. The sterilized powder is transported to the discharge bin 3, and the belt conveyor of the microwave sterilization device 1 extends to the top of the inside of the discharge bin 3.

[0029] A conveyor 4 is provided below the discharge bin 3. In the present embodiment, the conveyor 4 is in a horizontally placed "Y" shape, including a horizontal branch portion 41, a horizontal leg portion 42 and an inclined leg portion 43, wherein the horizontal branch portion 41 is connected to the outlet below the discharge bin 3; the inclined leg portion 43 is connected to the high-pressure fan, and an air sterilization filter 431 is installed on the inclined leg portion 43; the horizontal leg portion 42 is connected to the conveying pipe 5, and the conveying pipe 5 is connected to the metering tank 6.

[0030] The metering tank 6 includes a bracket 611, on which a tank body 612 is mounted, wherein a bag dust collector 613 is provided on the tank body 612, and an electromagnetic pulse valve is provided on one side of the bag dust collector 613. The inlet of the bag dust collector 613 is connected to the negative pressure pipe 71, and the bottom of the bag dust collector 613 is connected to the interior of the tank body 612. The negative pressure pipe 71 is connected to the induced draft fan 7, and a dust filter 72 is installed on the negative pressure pipe 71; a feed port is provided on one side above the tank body 612, and the feed port is connected to the conveying pipe 5; control valves are provided on the conveying pipe 5 and the negative pressure pipe 71, and a discharge port 614 is provided below the metering tank, and a discharge valve 615 is installed at the discharge port 614.

[0031] An arch breaker 616 is installed on the side wall of the tank body 612 near the discharge port 614, and a hanging ear 617 is installed on the upper side wall of the tank body 612. The hanging ear 617 cooperates with the bracket 611, and a cantilever beam weighing sensor 8 is installed between the hanging ear 617 and the bracket 611.

[0032] In another embodiment of the present invention, there are three metering tanks 6, namely, a first metering tank 61, a second metering tank 62 and a third metering tank 63; the first metering tank 61, the second metering tank 62 and the third metering tank 63 have the same structure, and only the volume difference exists; three delivery branches are drawn out from the delivery pipeline 5, namely, a first delivery branch 51, a second delivery branch 52 and a third delivery branch 53, the first delivery branch 51 is connected to the feed port of the first metering tank 61, the second delivery branch 52 is connected to the feed port of the second metering tank 62, and the third delivery branch 53 is connected to the feed port of the second metering tank 62. 53 is connected to the feed port of the third metering tank 63; and three negative pressure branch pipes are led out from the negative pressure pipe 71, namely the first negative pressure branch pipe 711, the second negative pressure branch pipe 712 and the third negative pressure branch pipe 713, the first negative pressure branch pipe 711 is connected to the inlet of the bag-type dust collector 613 on the first metering tank 61; the second negative pressure branch pipe 712 is connected to the inlet of the bag-type dust collector 613 on the second metering tank 62, and the third negative pressure branch pipe 713 is connected to the inlet of the bag-type dust collector 613 on the third metering tank 63; and a control valve is installed on each delivery branch pipe and each negative pressure branch pipe.

[0033] In another embodiment of the present invention, the control valves installed on each delivery branch and each negative pressure branch are connected to the on-site PLC, and the cantilever beam weighing sensor 8 and the pulse solenoid valve are connected to the on-site PLC, thereby realizing the control of the feed in each metering tank and ensuring the stability of production operation.

[0034] The principle of this utility model is:

[0035] When the present invention is in use, powder is added to the feed bin 2, the powder in the feed bin 2 falls onto the belt conveyor of the microwave sterilization device 1, and then is transported to the microwave sterilization device 1 for sterilization, and the sterilized powder is transported to the discharge bin 3; the microwave sterilization device 1 involved in the process is an existing mature equipment, and its structure and principle will not be repeated here.

[0036] The powder entering the discharge bin 3 enters the conveyor 4, and the powder is blown away by the high-pressure air in the conveyor 4, and then quickly transported to the metering tank 6 under the action of the induced draft fan 7. During the process, the air sterilization filter 431 on the inclined leg part 43 can sterilize the air to prevent bacteria in the air from entering the powder. The air sterilization filter 431 in the process is an existing mature equipment and will not be repeated here.

[0037] The powder is transported to the metering tank 6 through the conveying pipe 5. During the process, the powder needs to be separated from the air. In the present invention, a bag dust collector 613 is used to separate the powder from the air. The separated powder falls into the metering tank 6, and the air passes through the bag dust collector 613 and is then extracted by the induced draft fan 7 through the negative pressure pipe 71. During the process, a dust filter 72 is installed on the negative pressure pipe. The structural principle of the bag dust collector 613 and the dust filter 72 are existing and will not be repeated here.

[0038] When the powder in the metering tank 6 reaches the metering requirement, the control valves on the conveying pipe 5 and the negative pressure pipe 71 are closed, and the discharge valve 615 at the bottom of the metering tank 6 is opened, so that the powder in the metering tank 6 can be discharged and then transported to the next work section; if a material arch is formed during the process, the arch breaker 616 can be used to break the arch. The arch breaker 616 is already available and will not be described in detail.

[0039] In other embodiments of the present invention, there are three metering tanks 6. In actual production, the number and volume to be activated can be selected, so that they can be used for the production of products with different raw material ratios, which is more convenient for use in production. The PLC automatic control involved in the process is an existing mature technology, which is not difficult for technical personnel in this field to understand and will not be elaborated on.

Claims

1. A sterile conveying and metering system for producing powder products, comprising a microwave sterilization device (1), characterized in that: It also includes a metering tank (6), which is located at the rear end of the microwave sterilization device (1), and the microwave sterilization device (1) and the metering tank (6) are connected via a pneumatic conveying device; A feed bin (2) is provided in front of the microwave sterilization device (1), and a discharge bin (3) is provided at the rear of the microwave sterilization device (1); the feed bin (2) is located above the belt conveyor of the microwave sterilization device (1), and the belt conveyor of the microwave sterilization device (1) extends to the upper part of the discharge bin (3); The pneumatic conveying device includes a conveyor (4), an induced draft fan (7), and a bag dust collector (613). One end of the conveyor (4) is connected to the outlet below the discharge bin (3), and the other end of the conveyor (4) is connected to the high-pressure fan and the conveying pipe (5), respectively. The conveying pipe (5) is connected to the feed port of the metering tank (6). The bag dust collector (613) is arranged above the metering tank (6), and the bottom of the bag dust collector (613) is connected to the metering tank (6). The clean air outlet of the bag dust collector (613) is connected to the induced draft fan (7) through the negative pressure pipe (71).

2. The aseptic conveying and metering system for powder product production according to claim 1, characterized in that: The conveyor (4) is horizontally placed in a "Y" shape and includes a horizontal branch portion (41), a horizontal leg portion (42) and an inclined leg portion (43). The horizontal branch portion (41) is connected to the outlet below the discharge bin (3), the horizontal leg portion (42) is connected to the conveying pipe (5), and the inclined leg portion (43) is connected to the high-pressure blower.

3. The aseptic conveying and metering system for powder product production according to claim 2, characterized in that: An air sterilizing filter (431) is installed on the inclined leg portion (43).

4. The aseptic conveying and metering system for powder product production according to claim 1, characterized in that: A dust filter (72) is installed on the negative pressure pipe (71).

5. The aseptic conveying and metering system for powder product production according to claim 1, characterized in that: Control valves are installed on both the delivery pipeline (5) and the negative pressure pipeline (71).

6. The aseptic conveying and metering system for powder product production according to claim 1, characterized in that: The metering tank (6) includes a tank body (612), a bracket (611) is installed around the tank body (612), a discharge port (614) is provided at the bottom of the tank body (612), and a discharge valve (615) is installed at the discharge port (614); a hanging ear (617) is provided around the upper part of the tank body (612), the hanging ear (617) is matched with the bracket (611), and a cantilever beam type weighing sensor is installed between the hanging ear (617) and the bracket (611).

7. The aseptic conveying and metering system for powder product production according to claim 6, characterized in that: An arch breaker (616) is installed on the side wall below the metering tank (6) near the discharge port.

8. The aseptic conveying and metering system for powder product production according to any one of claims 1 to 7, characterized in that: The metering tank (6) is provided in plurality, and a plurality of delivery branches are drawn out from the delivery pipeline (5), the delivery branches correspond to the metering tanks (6) one by one, and a control valve is installed on each delivery branch; a plurality of negative pressure branches are drawn out from the negative pressure pipeline (71), the negative pressure branches correspond to the metering tanks (6) one by one, and a control valve is installed on each negative pressure branch.

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