A sterile feeding device and method for preparing raw materials of xylooligosaccharide feed additive

Abstract

The invention relates to the field of aseptic feeding equipment, and is used to solve the problem that the pressure instability in the aseptic conveying pipeline is not easy to be detected due to the lack of effective supervision measures. The invention is specifically an aseptic feeding equipment and method for preparing raw materials of oligoxylose feed additives, comprising an aseptic feeding equipment and an aseptic feeding system. In the invention, when the feeding pipe is feeding, the positive pressure state and the vibration state of the feeding pipe are monitored, so as to ensure that the feeding pipe can maintain a sufficient positive pressure state during operation, and avoid the entry of bacteria carried by the outside air. The vibration state of the pipeline is monitored, and the failure caused by the structural aging of the pipeline under the long-term vibration working state can be monitored in time, so as to avoid the economic loss caused by the continuous operation of the equipment under the fault condition. When the feeding pipeline is cleaned, the sealing performance of the feeding pipeline is monitored, so that the negative pressure state in the pipeline can be maintained more easily, and the drying effect is improved.

Description

Technical Field

[0001] The invention relates to the field of aseptic feeding equipment, in particular to aseptic feeding equipment and a method for preparing raw materials of xylooligosaccharide feed additives. Background Art

[0002] Vibrating feeder, also known as vibration feeding machine, refers to a kind of equipment that can feed block and granular materials from the storage bin to the receiving device evenly, regularly and continuously. It is widely used in metallurgy, coal mining, mineral processing, building materials, chemical industry, abrasive and other industries. In the production of additives, in order to avoid additive contamination, aseptic transportation is generally required to ensure the sterility of raw materials and products. Therefore, pipeline vibration transportation is generally adopted. The method is to vibrate the pipeline through a vibrator, and the material is transported along the vibration direction of the pipeline. In order to fully transfer the energy of the vibrator to the material, the pipeline and the corresponding fixed equipment such as the rubber plug cleaning machine need to be isolated from vibration;

[0003] At present, the pipeline aseptic feeding equipment in the prior art still has shortcomings. The patent with publication number CN204823010U discloses an aseptic feeding equipment, which solves the problem that the elastic damping hose connected at both ends of the pipeline can generally only resist positive pressure, and the negative pressure state cannot meet the sealing requirements. However, in actual use, the elastic hose and the valve still have aging and leakage. The prior art lacks effective supervision in the pipeline, which makes it difficult to detect when the pressure control in the aseptic feeding pipeline is unstable, resulting in the destruction of the sterile environment or the negative pressure cleaning and drying effects are affected, which is not conducive to use;

[0004] In view of the above technical problems, this application proposes a solution. Summary of the invention

[0005] In the present invention, the working mode of the feeding pipe is preset and switched, and the working state can be automatically changed during feeding or cleaning. When the feeding pipe is feeding, the positive pressure state and vibration state of the feeding pipe are monitored, so as to ensure that the feeding pipe can maintain a sufficient positive pressure state during operation, and avoid the entry of bacteria carried by external air and the destruction of the sterile environment. The vibration state of the pipeline is monitored, and the failure caused by structural aging of the pipeline under long-term vibration working state can be monitored in time, and the economic loss caused by the continuous operation of the equipment under faulty working conditions can be avoided. When the feeding pipeline is cleaned, the sealing performance of the feeding pipeline is monitored, and the negative pressure state in the pipeline can be maintained more easily, and the drying effect can be improved. The problem that the pressure instability in the pipeline is not easy to be detected due to the lack of effective supervision measures in the sterile conveying pipeline is solved, and an aseptic feeding device and method for preparing raw materials of oligoxylose feed additives are proposed.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A sterile feeding device for preparing raw materials of xylooligosaccharide feed additives, comprising a storage bin and a feeding pipe, wherein one end of the storage bin is open, the feeding pipe and the opening of the storage bin are connected through a connecting hose, and the end of the feeding pipe away from the storage bin is connected to a feeding port through a connecting hose;

[0008] A sealing valve is installed in the middle of the connecting hose, a vibration generator is installed below the feeding pipe, a pressure control port is connected above the feeding pipe, and a sensor integrated component is also installed above the feeding pipe, wherein multiple groups of sensors are integrated in the sensor integrated component, and the sensors extend into the feeding pipe;

[0009] The sensor integrated assembly is integrated with a sterile feeding system, and the sterile feeding system includes a sealing monitoring unit, a pressure control unit, a feeding monitoring unit and a sterilization switching unit.

[0010] As a preferred embodiment of the present invention, the sterilization switching unit controls the sealing valves, the pressure control port and the vibration generator. The operating states of the feeding tube include a feeding mode and a cleaning mode, which are controlled by the sterilization switching unit. In the feeding mode, the vibration generator is in a working state, the sealing valves are in an open state, and the pressure control port is in an air intake state. In the cleaning mode, the sealing valves are in a closed state, the vibration generator does not work, and the pressure control port is in an air intake state.

[0011] As a preferred embodiment of the present invention, the pressure control unit monitors the pressure inside the feeding tube, records the internal pressure of the feeding tube when it is in the feeding mode as positive pressure data, and records the internal pressure of the feeding tube when it is in the cleaning mode as negative pressure data. The pressure control unit compares the positive pressure data with a preset positive pressure threshold. If the positive pressure data reaches the preset positive pressure threshold, no response is made. If the positive pressure data does not reach the preset temperature positive pressure threshold, a positive pressure deficiency signal is generated, and the positive pressure deficiency signal is sent to the sterilization switching unit, and the sterilization switching unit increases the air intake of the pressure control port.

[0012] The pressure control unit compares the negative pressure data with a preset negative pressure threshold. If the negative pressure data is higher than the preset negative pressure threshold, a high pressure signal is generated. If the negative pressure data is lower than the preset negative pressure threshold, a negative pressure qualified signal is generated. The pressure control unit sends the high pressure signal to the sterilization switching unit, and the sterilization switching unit increases the suction volume of the pressure control port.

[0013] As a preferred embodiment of the present invention, when the feeding tube is in the feeding mode, the feeding monitoring unit monitors the vibration frequency of the vibration generator and compares the vibration frequency with a preset vibration frequency range. If the vibration frequency is within the preset vibration frequency range, no response is made; if the vibration frequency is not within the preset vibration frequency range, a vibration abnormality signal is generated;

[0014] The feeding monitoring unit collects the vibration frequency and vibration noise of the feeding pipe and records them as pipeline vibration frequency and pipeline noise. The feeding monitoring unit compares the pipeline vibration frequency with a preset frequency threshold. If the pipeline vibration frequency is greater than the preset frequency threshold, no response is made. If the pipeline vibration frequency is less than the preset frequency threshold, a vibration diffusion signal is generated. The feeding monitoring unit compares the pipeline noise with a preset noise threshold. If the noise threshold is less than the preset noise threshold, no response is made. If the noise threshold is greater than or equal to the preset noise threshold, a pipeline abnormality signal is generated.

[0015] As a preferred embodiment of the present invention, when the feeding pipe is in the cleaning mode, the sealing monitoring unit obtains a negative pressure qualified signal or an over-pressure signal through the pressure control unit;

[0016] When obtaining the negative pressure qualified signal, the negative pressure data in the feeding pipe is pressure collected at fixed intervals, and the negative pressure data collected each time, the time interval between two collections and the suction flow rate of the pressure control port are analyzed by formula to generate the pressure fluctuation amount. The sealing monitoring unit further analyzes the pressure fluctuation amount by formula to generate the pressure attenuation coefficient. The sealing monitoring unit compares the pressure fluctuation amount with the preset fluctuation threshold. If the pressure fluctuation amount is less than the preset fluctuation threshold, a normal sealing signal is generated. If the pressure fluctuation amount is greater than or equal to the preset fluctuation threshold, a sealing abnormality signal is generated.

[0017] When obtaining a high pressure signal, the sealing monitoring unit generates a pressure control coefficient through a formula analysis of the negative pressure data and the inspiratory flow rate of the pressure control port. The sealing monitoring unit compares the pressure control coefficient with the preset control threshold. If the pressure control coefficient is greater than the preset control threshold, a normal sealing signal is generated. If the pressure control coefficient is less than or equal to the preset control threshold, an abnormal sealing signal is generated.

[0018] As a preferred embodiment of the present invention, after generating a sealing abnormality signal, the sealing monitoring unit sends the sealing abnormality signal to the sterilization switching unit. After the sterilization switching unit obtains the sealing abnormality signal, it increases the valve plate pressure of the sealing valve, and at the same time the sealing monitoring unit sends out an audible and visual alarm.

[0019] A sterile feeding method for preparing raw materials of xylo-oligosaccharide feed additives, the method comprising the following steps:

[0020] Step 1: Switch the mode of the feeding pipe to the cleaning mode, control the two sets of sealing valves to close successively, and the sealing valve close to the storage bin is closed first;

[0021] Step 2: Create a negative pressure environment for the feeding tube through the pressure control port, test the sealing performance of the feeding tube through the sealing monitoring unit, and sterilize the feeding tube with high-temperature steam after generating a normal sealing signal. After the high-temperature steam sterilization of the feeding tube is completed, control the feeding tube to maintain a negative pressure state through the pressure control port to complete the drying of the feeding tube;

[0022] Step 3: After the feeding tube is dried, the feeding tube mode is switched to the feeding mode. In the feeding mode, the sealing valve is opened, the vibration sounder works, and the pressure control port creates a positive pressure environment in the feeding tube to realize the vibration conveying of the raw materials;

[0023] Step 4: In the feeding mode, monitor the positive pressure environment of the feeding pipe to ensure that the feeding pipe is in a positive pressure state. At the same time, monitor and warn the vibration frequency and vibration noise of the vibration sounder and the feeding pipe.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. In the present invention, the working mode of the feeding pipe is preset and switched, and the working state can be automatically switched during feeding or cleaning, thereby simplifying the switching steps of different working states of steam sterilization and feeding, and avoiding misoperation of valve opening and closing or pipeline vibration.

[0026] 2. In the present invention, when the feeding pipe is feeding, the positive pressure state and vibration state of the feeding pipe are monitored to ensure that the feeding pipe can maintain a sufficient positive pressure state during operation to prevent the outside air from carrying bacteria into the pipe and destroying the sterile environment. The vibration state of the pipe is monitored to timely detect failures caused by structural aging of the pipe under long-term vibration working conditions, thereby avoiding economic losses caused by continued operation of the equipment under fault conditions.

[0027] 3. In the present invention, when the feeding pipe is cleaned, the sealing performance of the feeding pipe is monitored to prevent the insufficient sealing ability of the feeding pipe from affecting the cleaning effect or the overflow of high-temperature steam from damaging other structural components. In addition, by monitoring the sealing condition in the pipe, sterilization is performed while ensuring that the sealing performance in the feeding pipe is sufficient, which can make the negative pressure state in the pipe easier to maintain, reduce the energy consumption during negative pressure drying, improve the drying effect, and reduce the drying time. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0029] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0030] Figure 2 is a system block diagram of the present invention;

[0031] Figure 3 It is a system flow chart of the present invention.

[0032] In the figure: 1. Storage bin; 2. Feeding port; 3. Feeding pipe; 4. Sealing valve; 5. Connecting hose; 6. Pressure control port; 7. Sensor integrated assembly; 8. Vibration generator. DETAILED DESCRIPTION

[0033] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Embodiment 1:

[0035] See also Figure 1 - Figure 3 As shown, a sterile feeding device for preparing raw materials of xylo-oligosaccharide feed additives comprises a storage bin 1 and a feeding pipe 3. One end of the storage bin 1 is open, and the feeding pipe 3 and the opening of the storage bin 1 are connected by a connecting hose 5. The connecting hose 5 has at least two groups, and the connecting hose 5 is distributed at both ends of the feeding pipe 3. The end of the feeding pipe 3 away from the storage bin 1 is connected to a feeding port 2 through the connecting hose 5, and the feeding port 2 is used to add raw materials to the raw material preparation device;

[0036] A sealing valve 4 is installed in the middle of the connecting hose 5. When the sealing valve 4 is in a closed state, the two ends of the connecting hose 5 can be isolated. A vibration generator 8 is installed below the feeding pipe 3. A linear motor is installed inside the vibration generator 8 for reciprocating operation to generate vibration. A pressure control port 6 is connected above the feeding pipe 3. A sensor integrated component 7 is also installed above the feeding pipe 3. A plurality of groups of sensors are integrated in the sensor integrated component 7. The sensors extend into the feeding pipe 3 for detecting the inside of the feeding pipe 3. When the sealing valve 4 is opened, the raw materials inside the storage bin 1 enter the feeding pipe 3. Under the vibration of the vibration sound generator 8, vibration feeding is realized and the raw materials enter the production equipment through the feeding port 2.

[0037] Embodiment 2:

[0038] See also Figure 1 - Figure 3As shown, a sterile feeding system is integrated in the sensor integrated component 7, and the sterile feeding system includes a sealing monitoring unit, a pressure control unit, a feeding monitoring unit and a sterilization switching unit, wherein the sterilization switching unit is used to control the operating state of the feeding tube 3, and the operating state of the feeding tube 3 includes a feeding mode and a cleaning mode, wherein in the feeding mode, the vibration generator 8 is in a working state, the sealing valves 4 are in an open state, and the pressure control port 6 is in an air intake state, and in the cleaning mode, the sealing valves 4 are in a closed state, the vibration generator 8 does not work, and the pressure control port 8 is in an air intake state, and the sterilization switching unit controls the sealing valves 4, the pressure control port 6, and the vibration generator 8;

[0039] The pressure control unit monitors the pressure inside the feeding tube 3, records the internal pressure of the feeding tube 3 when it is in the feeding mode as positive pressure data, and records the internal pressure of the feeding tube 3 when it is in the cleaning mode as negative pressure data. The pressure control unit compares the positive pressure data with the preset positive pressure threshold. If the positive pressure data reaches the preset positive pressure threshold, no response is made. If the positive pressure data does not reach the preset temperature positive pressure threshold, a positive pressure deficiency signal is generated and sent to the sterilization switching unit. The sterilization switching unit controls the pressure control port 6 to increase the air intake of the pressure control port 6, thereby increasing the positive pressure inside the feeding tube 3. The positive pressure inside the feeding tube 3 is used to prevent external gas from carrying bacteria into the feeding tube 3, thereby realizing a sterile feeding process.

[0040] The pressure control unit compares the negative pressure data with the preset negative pressure threshold. If the negative pressure data is higher than the preset negative pressure threshold, a high pressure signal is generated. If the negative pressure data is lower than the preset negative pressure threshold, a negative pressure qualified signal is generated. The pressure control unit sends the high pressure signal to the sterilization switching unit. The sterilization switching unit controls the pressure control port 6 to increase the air suction volume of the pressure control port 6, thereby increasing the vacuum degree inside the feeding pipe 3 to facilitate drying inside the feeding pipe 3.

[0041] When the feeding pipe 3 is in the feeding mode, the feeding monitoring unit monitors the vibration frequency of the vibration generator 8 and compares the vibration frequency with the preset vibration frequency range. If the vibration frequency is within the preset vibration frequency range, no response is made. If the vibration frequency is not within the preset vibration frequency range, a vibration abnormality signal is generated and sent to the management personnel through the network. At the same time, the feeding monitoring unit generates an audible and visual alarm.

[0042] The feeding monitoring unit collects the vibration frequency and vibration noise of the feeding pipe 3 and records them as pipeline vibration frequency and pipeline noise. The feeding monitoring unit compares the pipeline vibration frequency with a preset frequency threshold. If the pipeline vibration frequency is greater than the preset frequency threshold, no response is made. If the pipeline vibration frequency is less than the preset frequency threshold, a vibration diffusion signal is generated and sent to the management personnel through the network. At the same time, a corresponding sound and light alarm is generated. The feeding monitoring unit compares the pipeline noise with a preset noise threshold. If the noise threshold is less than the preset noise threshold, no response is made. If the noise threshold is greater than or equal to the preset noise threshold, a pipeline abnormality signal is generated and sent through the network.

[0043] When the feeding pipe 3 is in the cleaning mode, the sealing monitoring unit obtains a negative pressure qualified signal or a high pressure signal through the pressure control unit. When obtaining the negative pressure qualified signal, the negative pressure data in the feeding pipe 3 is pressure collected at fixed intervals, and the negative pressure data collected each time is recorded as Vi, the time interval between two collections is recorded as T, and the inhalation flow rate of the pressure control port 6 is recorded as U. The pressure fluctuation amount SD is generated by formula analysis. The sealing monitoring unit generates the pressure attenuation coefficient SJ by analyzing the pressure fluctuation SD through a formula. Wherein q is a preset weight coefficient, and the value of q is negatively correlated with the volume of the feeding pipe 3. The sealing monitoring unit compares the pressure fluctuation amount SD with the preset fluctuation threshold. If the pressure fluctuation amount SD is less than the preset fluctuation threshold, a normal sealing signal is generated. If the pressure fluctuation amount SD is greater than or equal to the preset fluctuation threshold, a sealing abnormality signal is generated.

[0044] When obtaining the over-pressure signal, the sealing monitoring unit generates the pressure control coefficient KJ through formula analysis. The sealing monitoring unit compares the pressure control coefficient KJ with the preset control threshold. If the pressure control coefficient KJ is greater than the preset control threshold, a normal sealing signal is generated. If the pressure control coefficient KJ is less than or equal to the preset control threshold, a sealing abnormality signal is generated.

[0045] After generating the sealing abnormality signal, the sealing monitoring unit sends the sealing abnormality signal to the sterilization switching unit. After obtaining the sealing abnormality signal, the sterilization switching unit increases the valve plate pressure of the sealing valve 4 to try to improve the sealing of the sealing valve 4. At the same time, the sealing monitoring unit sends the sealing abnormality signal to the management personnel through the network and issues an audible and visual alarm.

[0046] Embodiment three:

[0047] See also Figure 1 - Figure 3 As shown, a method for aseptic feeding of raw materials for preparing xylooligosaccharide feed additives comprises the following steps:

[0048] Step 1: Switch the mode of the feeding pipe 3 to the cleaning mode. In the cleaning mode, control the two sets of sealing valves 4 to be closed successively, and the sealing valve close to the storage bin 1 is closed first, and the operation of the vibration generator 8 is stopped at the same time;

[0049] Step 2: Create a negative pressure environment for the feeding pipe 3 through the pressure control port 6, and perform a sealing performance test on the feeding pipe 3 through the sealing monitoring unit. After a normal sealing signal is generated, perform high-temperature steam sterilization on the feeding pipe 3. After the high-temperature steam sterilization of the feeding pipe 3 is completed, control the feeding pipe 3 to maintain a negative pressure state through the pressure control port 6 to complete the drying of the feeding pipe 3;

[0050] Step 3: After the feeding pipe 3 is dried, the mode of the feeding pipe 3 is switched to the feeding mode. In the feeding mode, the sealing valve 4 is opened, the vibration sound generator 8 works, and the pressure control port 6 creates a positive pressure environment in the feeding pipe 3 to realize the vibration conveying of the raw materials;

[0051] Step 4: In the feeding mode, the positive pressure environment of the feeding pipe 3 is monitored to ensure that the feeding pipe 3 is in a positive pressure state, and at the same time, the vibration frequency and vibration noise of the vibration sounder 8 and the feeding pipe 3 are monitored and warned.

[0052] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A sterile feeding device for preparing raw materials of xylo-oligosaccharide feed additive, characterized in that: It comprises a material storage bin (1) and a feeding pipe (3), wherein one end of the material storage bin (1) is open, the feeding pipe (3) and the opening of the material storage bin (1) are connected via a connecting hose (5), and the end of the feeding pipe (3) away from the material storage bin (1) is connected to a feeding port (2) via the connecting hose (5); A sealing valve (4) is installed in the middle of the connecting hose (5), a vibration generator (8) is installed below the feeding pipe (3), a pressure control port (6) is connected above the feeding pipe (3), and a sensor integrated component (7) is also installed above the feeding pipe (3), wherein a plurality of groups of sensors are integrated in the sensor integrated component (7), and the sensors extend into the interior of the feeding pipe (3); The sensor integrated component (7) is integrated with a sterile feeding system, and the sterile feeding system includes a sealing monitoring unit, a pressure control unit, a feeding monitoring unit and a sterilization switching unit; The sterilization switching unit controls the sealing valve (4), the pressure control port (6), and the vibration generator (8). The operating state of the feeding pipe (3) includes a feeding mode and a cleaning mode, which are controlled by the sterilization switching unit. In the feeding mode, the vibration generator (8) is in a working state, the sealing valves (4) are in an open state, and the pressure control port (6) is in an air intake state. In the cleaning mode, the sealing valves (4) are in a closed state, the vibration generator (8) is not working, and the pressure control port (6) is in an air intake state. The pressure control unit monitors the pressure inside the feeding pipe (3), records the pressure inside the feeding pipe (3) when it is in the feeding mode as positive pressure data, and records the pressure inside the feeding pipe (3) when it is in the cleaning mode as negative pressure data. The pressure control unit compares the positive pressure data with a preset positive pressure threshold value. If the positive pressure data reaches the preset positive pressure threshold value, no response is made. If the positive pressure data does not reach the preset temperature positive pressure threshold value, a positive pressure deficiency signal is generated and sent to the sterilization switching unit, so that the sterilization switching unit increases the air intake of the pressure control port (6). The pressure control unit compares the negative pressure data with a preset negative pressure threshold value, and generates a high pressure signal if the negative pressure data is higher than the preset negative pressure threshold value; and generates a negative pressure qualified signal if the negative pressure data is lower than the preset negative pressure threshold value. The pressure control unit sends the high pressure signal to the sterilization switching unit, and the sterilization switching unit increases the air intake volume of the pressure control port (6); The feeding monitoring unit monitors the vibration frequency of the vibration generator (8) when the feeding pipe (3) is in the feeding mode, and compares the vibration frequency with a preset vibration frequency range; if the vibration frequency is within the preset vibration frequency range, no response is made; if the vibration frequency is not within the preset vibration frequency range, a vibration abnormality signal is generated; The feeding monitoring unit collects the vibration frequency and vibration noise of the feeding pipe (3) and records them as the pipeline vibration frequency and pipeline noise. The feeding monitoring unit compares the pipeline vibration frequency with a preset frequency threshold. If the pipeline vibration frequency is greater than the preset frequency threshold, no response is made. If the pipeline vibration frequency is less than the preset frequency threshold, a vibration diffusion signal is generated. The feeding monitoring unit compares the pipeline noise with a preset noise threshold. If the noise threshold is less than the preset noise threshold, no response is made. If the noise threshold is greater than or equal to the preset noise threshold, a pipeline abnormality signal is generated. When the feeding pipe (3) is in a cleaning mode, the sealing monitoring unit obtains a negative pressure qualified signal or a high pressure signal through the pressure control unit; When obtaining a negative pressure qualified signal, the negative pressure data in the feeding pipe (3) is pressure collected at fixed intervals, and the negative pressure data collected each time, the time interval between two collections, and the inhalation flow rate of the pressure control port (6) are analyzed by formula to generate a pressure fluctuation amount. The sealing monitoring unit further analyzes the pressure fluctuation amount by formula to generate a pressure attenuation coefficient. The sealing monitoring unit compares the pressure fluctuation amount with a preset fluctuation threshold. If the pressure fluctuation amount is less than the preset fluctuation threshold, a normal sealing signal is generated. If the pressure fluctuation amount is greater than or equal to the preset fluctuation threshold, a abnormal sealing signal is generated. When obtaining a high pressure signal, the sealing monitoring unit generates a pressure control coefficient by analyzing the negative pressure data and the inhalation flow rate of the pressure control port (6) through a formula. The sealing monitoring unit compares the pressure control coefficient with a preset control threshold. If the pressure control coefficient is greater than the preset control threshold, a normal sealing signal is generated. If the pressure control coefficient is less than or equal to the preset control threshold, a abnormal sealing signal is generated.

2. The aseptic feeding equipment for preparing xylooligosaccharide feed additive raw material according to claim 1, characterized in that: After generating the sealing abnormality signal, the sealing monitoring unit sends the sealing abnormality signal to the sterilization switching unit. After the sterilization switching unit obtains the sealing abnormality signal, it increases the valve plate pressure of the sealing valve (4), and at the same time the sealing monitoring unit issues an audible and visual alarm to remind.

3. A sterile feeding method for preparing raw materials of xylo-oligosaccharide feed additives, applicable to the sterile feeding equipment for preparing raw materials of xylo-oligosaccharide feed additives according to claim 2, characterized in that: The method comprises the following steps: Step 1: Switch the mode of the feeding pipe (3) to the cleaning mode, control the two sets of sealing valves (4) to close successively, and close the sealing valve close to the storage bin (1) first; Step 2: creating a negative pressure environment for the feeding pipe (3) through the pressure control port (6), testing the sealing performance of the feeding pipe (3) through the sealing monitoring unit, and after generating a normal sealing signal, sterilizing the feeding pipe (3) with high-temperature steam. After the high-temperature steam sterilization of the feeding pipe (3) is completed, the feeding pipe (3) is controlled to maintain a negative pressure state through the pressure control port (6) to complete the drying of the feeding pipe (3); Step 3: After the feeding pipe (3) is dried, the mode of the feeding pipe (3) is switched to the feeding mode. In the feeding mode, the sealing valve (4) is opened, the vibration generator (8) is operated, and the pressure control port (6) creates a positive pressure environment in the feeding pipe (3) to realize vibration conveying of the raw materials; Step 4: In the feeding mode, the positive pressure environment of the feeding pipe (3) is monitored to ensure that the inside of the feeding pipe (3) is in a positive pressure state, and at the same time, the vibration frequency and vibration noise of the vibration generator (8) and the feeding pipe (3) are monitored and warned.

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