Sterilization device, method, sterilization component and continuous sterilization system
Through the sterilization device of intermittent steam inlet and rotary impeller stirring, the problems of large steam usage and high energy consumption in the prior art are solved, low-cost and efficient sterilization effect are achieved, and continuous production is supported.
Patent Information
- Application Number
- CN202010423785.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-05-19
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2040-05-19
AI Technical Summary
The existing steam sterilization device needs to continuously pass through hot steam during the sterilization process, resulting in large steam usage, high energy consumption, high cost and materials are susceptible to high temperature losses.
A sterilization device with intermittent steam is used, and the material is stirred with a rotating impeller and steam is introduced during sterilization. After the sterilization is completed, the steam supply is stopped. Combined with the steam outlet design to avoid material bonding and improve contact efficiency, and a continuous sterilization system is used to improve efficiency.
It effectively reduces steam usage and energy consumption, reduces the loss of high-temperature denaturation of materials, improves sterilization efficiency and saves costs, and achieves continuous production.
Smart Images
Figure CN111467515B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to steam sterilization, in particular to a sterilization device, a method, a sterilization component thereof and a continuous sterilization system. Background Art
[0002] Existing steam sterilization devices mostly use airflow, sterilizing materials with superheated steam while simultaneously conveying the materials. This method requires continuous superheated steam flow, which consumes a large amount of superheated steam, consumes a lot of energy, and has a high sterilization cost. Summary of the Invention
[0003] To solve the above problems, the present invention provides a sterilization device with intermittent steam introduction, low steam usage, low energy consumption and low cost. The specific technical solution is as follows:
[0004] The sterilization device includes a sterilization container, which is provided with a feed port and a discharge port; a rotating impeller, which is rotatably installed in the sterilization container, the rotating impeller is provided with at least one blade, and the discharge port is arranged on the side of the sterilization container along the axial direction of the rotating impeller; a steam outlet, which is provided with a plurality of steam outlets, and the steam outlets are arranged on the sterilization container and / or the rotating impeller, and are communicated with the sterilization container, and the steam outlets are used to introduce steam into the sterilization container for sterilization.
[0005] By adopting the above technical solution, superheated steam is introduced into the material for sterilization after it enters the sterilization container, and the material is output after the sterilization is completed. Superheated steam is only introduced during sterilization, and superheated steam is not required at other times, which greatly saves the use of superheated steam and effectively reduces costs and energy consumption.
[0006] The rotating impeller is used to stir the material after the superheated steam is introduced, so that the material is fully in contact with the superheated steam, thereby improving the sterilization effect and efficiency and shortening the sterilization time. When discharging, the material is sent out from the discharge port by increasing the speed of the rotating impeller, without the need to blow out the material through steam, thus saving steam.
[0007] Furthermore, the axis of the rotating impeller is arranged horizontally, and the material falls on the blades when feeding through the feed inlet.
[0008] By adopting the above technical solution, the material falls on the blades to avoid contact between the material and the inner wall of the high-temperature sterilization container, because high temperature will cause the material to denature, thereby reducing the high-temperature loss of the material.
[0009] The previous process of rotating the impeller is to rotate at high speed to suck in cold air through the breathing valve to send the material out. Since the thickness of the blade is thinner than the wall thickness of the container, the temperature drops quickly and is lower than the temperature of the inner wall of the sterilization container, thus reducing the impact of temperature on the material.
[0010] The position where the blades stop can be detected and positioned by sensors to ensure that part of the blades are in a horizontal position when feeding, so that the material falls directly on the blades with lower temperature.
[0011] Furthermore, the blades are flat blades or arc blades.
[0012] By adopting the above technical solution, the arc blades facilitate material discharge.
[0013] Furthermore, the discharge port is tangent to the inner wall of the sterilization container.
[0014] By adopting the above technical solution, the discharge port is arranged tangent to the inner wall of the sterilization container, which facilitates discharge and improves discharge efficiency.
[0015] Furthermore, the steam outlet is arranged at one end or both ends of the sterilization container and is arranged opposite to the inner wall of the sterilization container, for blowing steam toward the inner wall of the sterilization container; or the steam outlet is arranged at one end or both ends of the sterilization container and is arranged along the edge of the inner wall of the sterilization container, and the axis of the steam outlet is arranged parallel to the axis of the sterilization container, for blowing air axially along the inner wall of the sterilization container.
[0016] By adopting the above technical solution, steam blows toward the inner wall of the sterilization container to prevent the material from sticking to the inner wall of the sterilization container. The blades throw the material into the interior of the sterilization container, and the steam blows the material back, so that the material is in full contact with the steam.
[0017] The steam holes are arranged along the edge of the sterilization container, and air is blown along the axis to ensure that the steam blows along the inner wall of the sterilization container, effectively blowing away the materials adhered to the inside of the sterilization chamber.
[0018] Steam vents are arranged oppositely at both ends to ensure that the inner wall can be completely covered by steam without leaving any dead corners.
[0019] During sterilization, the rotating impeller throws the material evenly toward the inner wall of the sterilization container, and the steam blows the material away. The relative speed is high, and the material contacts the steam more fully, thereby improving the sterilization efficiency.
[0020] Furthermore, it also includes a steam pipe, which is annular and is arranged at one end or both ends of the sterilization container. The steam pipe is provided with a plurality of steam outlet holes, and the steam outlet holes are arranged opposite to the inner wall of the sterilization container, or along the edge of the inner wall of the sterilization container and parallel to the axis of the sterilization container.
[0021] By adopting the above technical solution, the steam pipe is easy to process and is located inside the sterilization chamber, which is convenient for heat preservation.
[0022] The sterilization method includes the following steps: firstly, feeding the material into the sterilization container, then introducing steam into the sterilization container, and rotating the rotary impeller to stir the material for sterilization; after the sterilization is completed, the rotary impeller accelerates the rotation and sends the material out from the discharge port by centrifugal force.
[0023] The sterilization component includes the sterilization device; a feed valve connected to the feed port; a discharge valve connected to the discharge port; a breathing valve connected to the sterilization container; an air intake valve connected to the steam outlet; and a motor connected to the rotating impeller.
[0024] The continuous sterilization system comprises the sterilization components, which are no less than two; a multi-way valve, wherein the outlets of the multi-way valve are respectively connected to the air inlet valves, and the inlet of the multi-way valve is connected to the steam source.
[0025] A continuous sterilization system, wherein four sterilization components are provided and the multi-way valve is a five-way valve.
[0026] Compared with the prior art, the present invention has the following beneficial effects:
[0027] The sterilization device provided by the present invention allows intermittent steam introduction, uses less steam, has low energy consumption, is low in cost, and can effectively reduce the loss of materials due to high-temperature denaturation. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 It is a schematic diagram of the structure of the sterilization chamber equipped with a steam pipe;
[0029] Figure 2 This is a front view of the sterilization chamber with sterilization chamber covers installed at both ends and arranged horizontally;
[0030] Figure 3 yes Figure 1 Schematic diagram of the structure after the sterilization chamber is hidden;
[0031] Figure 4 It is a cross-sectional view along the feed port, and the sterilization chamber cover is provided with steam vents;
[0032] Figure 5 This is a cross-sectional view of the steam outlet and feed port arranged on the sterilization chamber cover;
[0033] Figure 6 It is a cross-sectional view of a rotating impeller having blade air outlet holes;
[0034] Figure 7 It is a structural schematic diagram of the rotating impeller having blades that are arc blades;
[0035] Figure 8 It is a structural diagram of the continuous sterilization system. DETAILED DESCRIPTION
[0036] The present invention will now be further described with reference to the accompanying drawings.
[0037] Example 1
[0038] like Figures 1 to 6 As shown, the sterilization device includes a sterilization container, which is provided with a feed port 32 and a discharge port 11; a rotating impeller, which is rotatably installed in the sterilization container, and the rotating impeller is provided with no less than one blade 22, and the discharge port 11 is arranged on the side of the sterilization container along the axial direction of the rotating impeller; a steam outlet 41, and a plurality of steam outlet holes 41 are provided, and the steam outlet holes 41 are arranged on the sterilization container and / or the rotating impeller, and are communicated with the sterilization container, and the steam outlet holes 41 are used to introduce steam into the sterilization container for sterilization.
[0039] After the material enters the sterilization container, superheated steam is introduced for sterilization, and the material is output after sterilization is completed. Superheated steam is only introduced during sterilization, and superheated steam is not needed at other times, which greatly saves the use of superheated steam and effectively reduces costs and energy consumption.
[0040] The rotating impeller is used to stir the material after the superheated steam is introduced, so that the material is fully in contact with the superheated steam, thereby improving the sterilization effect and efficiency and shortening the sterilization time. When discharging, the material is sent out from the discharge port 11 by increasing the speed of the rotating impeller, without the need to blow out the material through steam, thus saving steam.
[0041] Specifically, the sterilization container includes a cylindrical sterilization chamber 1 and a sterilization chamber cover 3, which is fixed at both ends of the sterilization chamber 1. A feed port 32 is provided on the sterilization chamber 1 or the sterilization chamber cover 3; and a discharge port 11 is provided on the side of the sterilization chamber 1.
[0042] The rotating impeller includes a rotating shaft 21 and multiple blades 22. The blades 22 are arranged in a circular array along the axis of the rotating shaft 21. One end or both ends of the rotating shaft 21 are fixed on the bearing seat 33. The bearing seat 33 is fixed on the sterilization chamber cover 3. The rotating shaft 21 is coaxially arranged with the sterilization chamber 1, and a gap is left between the blades 22 and the inner wall of the sterilization chamber 1.
[0043] Example 2
[0044] On the basis of the above-mentioned embodiment 1, the axis of the rotating impeller is arranged horizontally, and the material falls on the blades when the material is fed from the feed port 11 .
[0045] Specifically, the sterilization chamber 1 and the rotating impeller are both arranged horizontally, and the material falls on the blades 22 when the material is fed from the feed port 32. The material falls on the blades 22 to avoid contact between the material and the inner wall of the high-temperature sterilization container, because high temperature will cause material denaturation, thereby reducing material high-temperature loss.
[0046] When feeding, the blades 22 are turned to a horizontal state, and the material falls directly onto the blades 22 .
[0047] The preceding process of the rotating impeller is to rotate at high speed to suck in cold air through the breathing valve to send the material out. Since the thickness of the blade 22 is thinner than the wall thickness of the sterilization chamber 1, the temperature drops quickly and is lower than the inner wall temperature of the sterilization chamber 1, thus reducing the impact of temperature on the material.
[0048] The position where the blades 22 stop can be detected and positioned by a sensor to ensure that part of the blades 22 are in a horizontal position during feeding, so that the material falls directly on the blades 22 with a lower temperature.
[0049] like Figure 5 As shown, when the feed port 32 is set on the sterilization chamber cover 3, it is necessary to ensure that at least one blade 22 is in a horizontal state, and the feed port 32 is located above the horizontal blade 22 to ensure that the material falls on the horizontal blade 22.
[0050] When the feed port 32 is provided on the sterilization chamber 1 , it needs to be provided at the top of the sterilization chamber 1 or at least above one of the horizontal blades 22 to ensure that the material falls onto the horizontal blade 22 .
[0051] Example 3
[0052] Based on any of the above embodiments, Figure 6 and Figure 7 As shown, the blade 22 is a flat blade or an arc blade. Figure 7 As shown, the arc blades facilitate discharging.
[0053] Example 4
[0054] Based on any of the above embodiments, the discharge port 11 is tangent to the inner wall of the sterilization container.
[0055] Specifically, such as Figure 4 As shown, the discharge port 11 is arranged tangentially with the inner wall of the sterilization chamber 1. This arrangement facilitates material discharge and maximizes the force with which the material is ejected, improving discharge efficiency. The discharge port 11 disposed on the sterilization chamber 1 allows the material to be ejected from the discharge port 11 by increasing the speed of the rotating impeller, eliminating the need for an external air blowing device.
[0056] The material is discharged by the high-speed rotation of the impeller, which sucks in sterile air axially and sends it out tangentially, that is, the powder or particles are sent out by air.
[0057] Example 5
[0058] Based on any of the above embodiments, the steam outlet holes 41 are provided at one or both ends of the sterilization container and are arranged opposite to the inner wall of the sterilization container for blowing steam toward the inner wall of the sterilization container.
[0059] Specifically, the steam outlet hole 41 is arranged opposite to the inner wall of the sterilization chamber 1 , that is, the steam outlet hole 41 is arranged obliquely and faces the interior of the sterilization chamber 1 .
[0060] The steam is blown toward the inner wall of the sterilization chamber 1 to prevent the material from adhering to the inner wall of the sterilization chamber 1 .
[0061] This method can be used when the length of the sterilization chamber 1 is short.
[0062] Specifically, such as Figure 4 As shown, steam vents 41 are provided on one of the sterilization chamber covers 3 and arranged in a circular array along the axis of the sterilization chamber cover 3. Both sterilization chamber covers 3 are provided with steam vents 41. Positioning the steam vents 41 at opposite ends ensures that the inner wall is completely covered by steam, leaving no blind spots. For longer sterilization chambers 1, blowing air from both ends can be used to ensure air coverage.
[0063] Example 6
[0064] Based on any of the above embodiments, Figure 5 As shown, the steam outlet hole 41 is arranged at one or both ends of the sterilization container and along the edge of the inner wall of the sterilization container. The axis of the steam outlet hole 41 is arranged parallel to the axis of the sterilization container and is used for axially blowing along the inner wall of the sterilization container.
[0065] The steam outlet holes 41 are arranged along the edge of the sterilization chamber 1 , and blowing along the axis ensures that the steam blows along the inner wall of the sterilization chamber 1 , effectively blowing away the materials adhered to the inside of the sterilization chamber 1 .
[0066] This method can be used when the sterilization chamber 1 is long, as long as the steam can reach the sterilization chamber cover 3 on the opposite side.
[0067] Specifically, the steam outlet holes 41 are arranged in an annular array on one of the sterilization chamber covers 3 or two of the sterilization chamber covers 3 and are located at the edge of the inner wall of the sterilization chamber 1 .
[0068] The steam blows toward the inner wall of the sterilization chamber 1 to prevent the material from adhering to the inner wall of the sterilization chamber 1 , and the blades 22 throw the material toward the inside of the sterilization chamber 1 , and the steam blows the material back, so that the material is in full contact with the steam.
[0069] Steam outlet holes 41 are arranged opposite to each other at both ends to ensure that the inner wall can be completely covered by steam without leaving any dead corners.
[0070] Example 7
[0071] On the basis of any of the above embodiments, it also includes a steam pipe 4, which is annular and is arranged at one end or both ends of the sterilization container. The steam pipe 4 is provided with a plurality of steam outlet holes 41, and the steam outlet holes 41 are arranged opposite to the inner wall of the sterilization container, or along the edge of the inner wall of the sterilization container and parallel to the axis of the sterilization container.
[0072] like Figures 1 to 4 As shown, steam outlet holes 41 are provided on the steam pipe 4, rather than on the sterilization chamber cover 3. The steam outlet holes 41 are arranged in a circular array around the axis of the steam pipe 4. The steam outlet holes 41 can be arranged at an angle or parallel to the axis of the steam pipe 4. When the steam outlet holes 41 are arranged at an angle, they blow into the interior of the sterilization chamber 1. When the steam outlet holes 41 are arranged parallel to the axis of the steam pipe 4, they are located at the edge of the inner wall of the sterilization chamber 1. The steam pipe 4 is easy to manufacture, and its location inside the sterilization chamber 1 facilitates heat preservation.
[0073] Example 8
[0074] Based on any of the above embodiments, Figure 6 As shown, a plurality of steam outlet holes 41 are provided on the blades 22 of the rotating impeller, and the steam outlet holes 41 are used for introducing steam.
[0075] The steam outlet holes 41 can improve the stirring efficiency and prevent the material from sticking to the blades 22 .
[0076] Specifically, a main air inlet 25 is provided on the rotating shaft 21 of the rotating impeller, and a secondary air inlet 23 is provided on the blade 22. The secondary air inlet 23 is communicated with the steam outlet 41 and the main air inlet 25 respectively, thereby enabling the blade 22 to blow out superheated steam.
[0077] Embodiment 9
[0078] Based on any of the above embodiments, the sterilization method includes the following steps: first, feeding the material into the sterilization container, then introducing steam into the sterilization container, and simultaneously rotating the rotary impeller to stir the material for sterilization; after the sterilization is completed, the rotary impeller accelerates the rotation and sends the material out from the discharge port 11 by centrifugal force.
[0079] During sterilization, the rotating impeller throws the material evenly toward the inner wall of the sterilization container, and the steam blows the material away. The relative speed is high, and the material contacts the steam more fully, thereby improving the sterilization efficiency.
[0080] Example 10
[0081] Based on any one of the above-mentioned embodiments 1 to 8, the sterilization component includes a sterilization device; a feed valve, the feed valve is connected to the feed port; a discharge valve, the discharge valve is connected to the discharge port; a breathing valve, the breathing valve is connected to the sterilization container; an air inlet valve, the air inlet valve is connected to the steam outlet; and a motor, the motor is connected to the rotating impeller.
[0082] During operation, the feed valve opens, and the material is blown into the sterilization chamber 1 by high-pressure gas, and falls onto the blades 22. The breathing valve exhausts the gas. After the feeding is completed, the feed valve closes, the air inlet valve opens, and superheated steam is introduced. At the same time, the motor is started, which drives the rotating impeller to rotate. The rotating impeller stirs the material to steam sterilize. When steam sterilization is completed, the air inlet valve closes, the discharge valve and the breathing valve open, and the rotating impeller accelerates. The material leaves the discharge port 11 under the action of centrifugal force.
[0083] Example 11
[0084] Based on the above embodiment 10, Figure 8 As shown, the continuous sterilization system includes at least two sterilization components; an air inlet valve 52, the number of which matches the number of sterilization containers 10, and the air inlet valve 52 is connected to the sterilization containers 10; and a multi-way valve 51, the outlets of the multi-way valve 51 being respectively connected to the air inlet valve 52, and the inlet of the multi-way valve 51 being connected to a steam source. The multi-way valve 51 sequentially supplies air to the sterilization containers 10.
[0085] The workflow of existing sterilization equipment is as follows: material is fed in, steam is introduced for sterilization, and the material is discharged after sterilization is complete, repeating the cycle. Due to the short sterilization time, typically 5 to 10 seconds, preparation time is relatively long. The entire process of discharging, feeding, and sterilization takes approximately 10 to 30 seconds. Therefore, most of this time is spent preparing the material, leaving the actual sterilization time short, resulting in low overall sterilization efficiency.
[0086] The two sterilization containers 10 can be sterilized alternately, which nearly doubles the sterilization amount within the same time, greatly improves the sterilization efficiency, and shortens the sterilization time.
[0087] Example 12
[0088] Based on the eleventh embodiment, four sterilization containers 10 and four air inlet valves 52 are each provided, and the multi-way valve 51 is a five-way valve. Four sterilization containers 10 generally meet production schedules, while three are inefficient and five provide insufficient steam flow time. The five-way valve is a five-way rotary valve with one inlet and four outlets. Rotating the valve core connects the inlet to one outlet at a time.
[0089] During operation, the five-way valve is first connected to the first sterilization container 10, and superheated steam is added to the sterilization container 10, which takes about 5 to 10 seconds. At this time, the other sterilization containers 10 are feeding. When the first sterilization container 10 completes sterilization and starts discharging, the five-way valve sends steam to the second sterilization container 10. When the second sterilization container 10 completes sterilization and starts discharging, the five-way valve sends steam to the third sterilization container 10. At this time, the first sterilization container 10 completes discharging and starts feeding. When the third sterilization container 10 completes sterilization and starts discharging, the second sterilization container 10 completes discharging and starts feeding, and the five-way valve sends steam to the fourth sterilization container 10. When the fourth sterilization container 10 completes sterilization and starts discharging, the first sterilization container 10 completes feeding, and the five-way valve sends steam to the first sterilization container 10. This is repeated to achieve continuous sterilization, which greatly improves the sterilization efficiency.
[0090] The multi-way valve 51 is used to realize cyclic gas supply, reduce steam damage, and realize continuous production.
[0091] A continuous sterilization system includes a continuous sterilization device; a steam generating device connected to the inlet of a multi-way valve 51; and a feeding device connected to the feed valve.
[0092] The feeding device is a screw feeding device, and the bolt feeding device is connected to the four feed valves respectively through a five-way joint. The steam generating device is also connected to the superheated steam generating device, and the superheated steam generating device is connected to the inlet of the multi-way valve 51 to provide superheated steam.
Claims
1. Sterilization device, characterized in that, include: A sterilization container, wherein the sterilization container is provided with a feed inlet and a discharge outlet; a rotary impeller, the rotary impeller being rotatably mounted in the sterilization container, the rotary impeller being provided with at least one blade, and the discharge port being provided on the side of the sterilization container along the axial direction of the rotary impeller; A steam outlet hole, wherein a plurality of steam outlet holes are provided, and the steam outlet holes are arranged on the sterilization container and the rotating impeller and communicate with the sterilization container, and the steam outlet holes are used to introduce steam into the sterilization container for sterilization; an air inlet valve, the air inlet valve being in communication with the steam outlet; The sterilization container further comprises a steam pipe, the steam pipe being annular and disposed at one or both ends of the sterilization container. The steam pipe is provided with a plurality of steam outlet holes, the steam outlet holes being disposed opposite to the inner wall of the sterilization container or along the edge of the inner wall of the sterilization container and parallel to the axis of the sterilization container, for blowing steam toward the inner wall of the sterilization container to blow away materials adhered to the inner wall of the sterilization container. The discharge port is tangent to the inner wall of the sterilization container.
2. The sterilization device according to claim 1, characterized in that The axis of the rotating impeller is arranged horizontally, and the material falls on the blades when the material is fed through the feed port.
3. The sterilization device according to claim 1, characterized in that The blades are flat blades or arc blades.
4. A sterilization method, characterized in that The following steps are involved: First, the material is fed into the sterilization container, and then steam is introduced into the sterilization container. At the same time, the rotary impeller is rotated to stir the material for sterilization. After the sterilization is completed, the rotary impeller accelerates and the material is sent out from the discharge port by centrifugal force.
5. Sterilization component, characterized in that, include The sterilization device according to any one of claims 1 to 3; a feed valve connected to the feed port; a discharge valve connected to the discharge port; a breathing valve, the breathing valve being in communication with the sterilization container; an air inlet valve, the air inlet valve being in communication with the steam outlet; A motor is connected to the rotating impeller.
6. Continuous sterilization system, characterized in that, include The sterilization component according to claim 5, wherein there are at least two sterilization components; A multi-way valve, wherein the outlets of the multi-way valve are respectively connected to the air inlet valves, and the inlet of the multi-way valve is connected to the steam source.
7. The continuous sterilization system according to claim 6, characterized in that: There are four sterilization components, and the multi-way valve is a five-way valve.
Citation Information
Patent Citations
Sterilization device, sterilization part thereof and continuous sterilization system
CN212854100U