An automatic feeding control method for kitchen waste treatment

Abstract

The application relates to an automatic feeding control method for kitchen waste treatment, which comprises the following steps: performing dehydration machine operation condition detection to determine whether to proceed to the next step; performing crusher operation condition detection to determine whether to proceed to the next step; performing crusher feeding conveying equipment working condition detection, and adjusting the crusher feeding conveying equipment frequency and the crusher frequency according to the crusher feeding conveying equipment working condition; and performing bin bottom screw conveying equipment working condition detection, and adjusting the frequency of the bin bottom screw conveying equipment according to the bin bottom screw conveying equipment working condition. The automatic feeding control method can realize smooth, uniform and continuous feeding, and can realize efficient utilization of energy.

Description

Technical Field

[0001] This invention relates to an automatic feeding control method for kitchen waste treatment, belonging to the field of kitchen waste treatment technology. Background Technology

[0002] The current process for treating kitchen waste involves conveying the kitchen waste to a crusher for crushing, then conveying the crushed kitchen waste to a dewatering press for slurry extrusion, separating organic slurry from residue, and then processing the organic slurry and residue separately.

[0003] During the material compression process of food waste conveyed to the extrusion dewatering machine, a mismatch often occurs between the conveyor's capacity and the dewatering machine's processing capacity, causing food waste to overflow from the connections of various equipment. This overflow not only brings unpleasant odors to the production workshop but also makes cleaning extremely difficult for workers. Summary of the Invention

[0004] To address the aforementioned problems, the present invention aims to provide an automatic feeding control method for kitchen waste treatment.

[0005] The objective of this invention is achieved through the following technical solution:

[0006] An automatic feeding control method for food waste treatment is provided, based on a food waste treatment system. The system includes a receiving hopper, a bottom screw conveyor, a crusher feeding conveyor, a crusher, a dewatering machine feeding conveyor, and a dewatering machine, arranged sequentially. The automatic feeding control method is an automatic feeding control method during the operation of the treatment system, comprising the following steps:

[0007] Perform a test on the operating conditions of the dewatering machine. If the operating conditions are met, proceed directly to the next step. Otherwise, shut down the bottom screw conveyor, the crusher feed conveyor, and the crusher and dewatering machine feed conveyor in sequence, and keep the dewatering machine running until the operating conditions are met before proceeding to the next step.

[0008] Perform a crusher operating condition test. If the conditions are met, proceed to the next step; otherwise, shut down the bottom screw conveyor and the crusher feed conveyor in sequence, and keep the crusher running until the crusher operating conditions are met before proceeding to the next step.

[0009] Perform condition testing on the crusher's feeding and conveying equipment, and adjust the frequency of the crusher's feeding and conveying equipment and the frequency of the crusher according to the condition of the crusher's feeding and conveying equipment;

[0010] The operating condition of the bottom screw conveyor is tested, and its frequency is adjusted according to the operating condition of the bottom screw conveyor.

[0011] Furthermore, the automatic feeding control method also includes an automatic feeding control method for processing the system startup process, comprising the following steps:

[0012] Start the dehydrator and set its frequency. Perform a dehydrator operation condition test. If the dehydrator operation conditions are met, proceed directly to the next step. Otherwise, continue running the dehydrator until the dehydrator operation conditions are met before proceeding to the next step.

[0013] Start the dewatering machine's feeding conveyor and run it for a certain period of time before proceeding to the next step.

[0014] Start the crusher and set the crusher frequency. Perform a crusher operating condition test. If the condition is met, proceed to the next step; otherwise, shut down the crusher, dewatering machine feeding conveyor, and dewatering machine in sequence.

[0015] Start the crusher feeding conveyor and set its frequency. After the crusher feeding conveyor has been running for a certain period of time, proceed to the next step.

[0016] Start the bottom screw conveyor and set its frequency.

[0017] Furthermore, in the startup method of the processing system, before starting the dehydrator, the startup conditions of the processing system are detected. If the conditions are met, the dehydrator is started and subsequent steps are performed; otherwise, the system is not started.

[0018] Furthermore, the startup conditions for the processing system include: the bottom screw conveyor, the crusher feeding conveyor, the crusher, the dewatering machine feeding conveyor, and the dewatering machine are all without faults.

[0019] Furthermore, when starting the crusher, first run the crusher in the reverse direction for a certain period of time, then stop the crusher for a certain period of time, and finally run the crusher in the forward direction.

[0020] Furthermore,

[0021] The dehydrator operating condition detection is as follows: determine whether the dehydrator liquid level exceeds the upper limit; if the dehydrator liquid level exceeds the upper limit, determine whether the duration exceeds the upper limit; if the dehydrator liquid level exceeds the upper limit and the duration exceeds the upper limit, the dehydrator operating condition is not met; otherwise, the first operating condition of the dehydrator is met.

[0022] Furthermore, the crusher operating condition detection includes determining whether the crusher torque has reached the upper limit and whether the duration of the torque exceeding the upper limit has reached the upper limit. If both the crusher torque and the duration have reached the upper limit, then the crusher operating conditions are not met; otherwise, the crusher operating conditions are met.

[0023] Furthermore, the crusher feeding and conveying equipment condition detection includes detecting the torque of the crusher feeding and conveying equipment and the duration of the corresponding state, and adjusting the frequency of the crusher feeding and conveying equipment and the frequency of the crusher according to the torque and duration of the crusher feeding and conveying equipment.

[0024] Furthermore, the condition detection of the bottom screw conveyor includes detecting the torque of the bottom screw conveyor and the duration of the corresponding state, and adjusting the frequency of the bottom screw conveyor according to the torque and duration of the bottom screw conveyor.

[0025] The beneficial effects of this invention are as follows:

[0026] The automatic feeding control method for kitchen waste treatment provided by this invention combines the processing system with detection data in real time. Based on the real-time detection data between various components, the operation of the processing system is adjusted to select the optimal control mode for automatic control. This not only achieves stable, uniform and continuous feeding, but also enables efficient use of energy. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the kitchen waste treatment system described in this invention.

[0028] 1-Receiving hopper, 2-Bottom screw conveyor, 3-Crusher feeding conveyor, 4-Crusher, 5-Dewatering machine feeding conveyor, 6-Dewatering machine, 7-Dewatering machine level gauge. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0031] Furthermore, the terminology used in the description of this invention is for illustrative purposes only and is not intended to limit the scope of the invention. The terms "comprising" and / or "including" are used to specify the presence of said elements, steps, operations, and / or components, but do not exclude the presence or addition of one or more other elements, steps, operations, and / or components. The terms "first," "second," etc., may be used to describe various elements, do not represent an order, and do not limit these elements. Moreover, in the description of this invention, unless otherwise stated, "a plurality of" means two or more. These terms are used only to distinguish one element from another. These and / or other aspects become apparent in conjunction with the following drawings, and those skilled in the art will more readily understand the description of the embodiments of the invention. The drawings are used for illustrative purposes only to depict the embodiments of the invention. Those skilled in the art will readily recognize from the following description that alternative embodiments of the structures and methods shown in the invention can be employed without departing from the principles of the invention.

[0032] Example 1

[0033] An automatic feeding control method for food waste treatment, based on a food waste treatment system, such as... Figure 1 As shown, the processing system includes a receiving hopper 1, a bottom screw conveyor 2, a crusher feeding conveyor 3, a crusher 4, a dewatering machine feeding conveyor 5, and a dewatering machine 6 arranged sequentially. A dewatering machine level gauge 7 is installed on the dewatering machine 6. In an optional embodiment, both the crusher feeding conveyor and the dewatering machine feeding conveyor are screw conveyors.

[0034] The automatic feeding control method is an automatic feeding control method for processing the operation of the system, including the following steps:

[0035] S1. Perform a test on the operating conditions of the dewatering machine. If the first operating condition is met, proceed directly to the next step. Otherwise, shut down the bottom screw conveyor, the crusher feed conveyor, and the crusher and dewatering machine feed conveyor in sequence, and keep the dewatering machine running until the second operating condition is met before proceeding to the next step.

[0036] The first operating condition detection of the dehydrator is as follows: It is determined whether the liquid level in the dehydrator exceeds the upper limit. If the liquid level exceeds the upper limit, it is further determined whether the duration of this exceedance reaches the first upper limit. If the liquid level exceeds the upper limit (including the upper limit) and the duration reaches the first upper limit, then the first operating condition of the dehydrator is not met; otherwise, the first operating condition is met. For example, if the liquid level in the dehydrator exceeds 0.3 meters (including 0.3 meters) and this state lasts for 3 seconds or more, then the first operating condition is not met.

[0037] The second operating condition detection of the dehydrator is as follows: it is determined whether the liquid level of the dehydrator is within the upper limit and whether the duration reaches the second upper limit. If so, the second operating condition of the dehydrator is met; otherwise, it is not met. For example, if the liquid level of the dehydrator is within 0.3 meters and the duration of this state is 10 seconds or more, the second operating condition is met.

[0038] S2. Perform crusher operating condition detection. If the conditions are met, proceed to the next step; otherwise, shut down the bottom screw conveyor and crusher feed conveyor in sequence, and keep the crusher running until the crusher operating conditions are met before proceeding to the next step.

[0039] The crusher operating condition detection includes determining whether the crusher torque has reached its upper limit and whether the duration of the torque exceeding the upper limit has reached its upper limit. If both the crusher torque and the duration reach their upper limits, the crusher operating conditions are not met; otherwise, the crusher operating conditions are met. For example, if the crusher torque reaches 50% of the rated torque and this state lasts for 20 seconds, the crusher operating conditions are not met.

[0040] S3, perform condition testing on the crusher feeding and conveying equipment, and adjust the frequency of the crusher feeding and conveying equipment and the frequency of the crusher according to the condition of the crusher feeding and conveying equipment.

[0041] The operation condition detection of the crusher feeding and conveying equipment includes detecting the torque of the crusher feeding and conveying equipment and the duration of the corresponding state, and adjusting the frequency of the crusher feeding and conveying equipment and the frequency of the crusher based on the torque and duration of the crusher feeding and conveying equipment. For example, if the detected torque of the crusher feeding and conveying equipment is 0-10% of the rated torque, and the duration of this state is 3 seconds, then the frequency of the crusher feeding and conveying equipment is set to 25Hz, and the crusher is set to energy-saving mode, such as setting the crusher frequency to 35Hz; if the detected torque of the crusher feeding and conveying equipment is 10-20% of the rated torque, and the duration of this state is 3 seconds, then the frequency of the crusher feeding and conveying equipment is set to 20Hz, and the crusher is set to working mode, such as setting the crusher frequency to 45Hz; if the detected torque of the crusher feeding and conveying equipment is greater than 20% of the rated torque, and the duration of this state is 3 seconds, then the frequency of the crusher feeding and conveying equipment is set to 15Hz, and the crusher is set to working mode, such as setting the crusher frequency to 45Hz.

[0042] S4, perform condition testing on the bottom screw conveyor and adjust its frequency according to the condition of the bottom screw conveyor.

[0043] The condition monitoring of the bottom screw conveyor includes detecting the torque of the bottom screw conveyor and the duration of the corresponding state, and adjusting the frequency of the bottom screw conveyor based on the torque and duration. For example, if the detected torque of the bottom screw conveyor is 0-10% of the rated torque and the state lasts for 3 seconds, the frequency of the bottom screw conveyor is set to 20Hz; if the detected torque is 10-20% of the rated torque and the state lasts for 3 seconds, the frequency of the bottom screw conveyor is set to 15Hz; if the detected torque is greater than 20% of the rated torque and the state lasts for 3 seconds, the frequency of the bottom screw conveyor is set to 10Hz.

[0044] Example 2

[0045] An automatic feeding control method for food waste treatment, based on a food waste treatment system, such as... Figure 1 As shown, the processing system includes a receiving hopper 1, a bottom screw conveyor 2, a crusher feeding conveyor 3, a crusher 4, a dewatering machine feeding conveyor 5, and a dewatering machine 6 arranged sequentially. A dewatering machine level gauge 7 is installed on the dewatering machine 6. In an optional embodiment, both the crusher feeding conveyor and the dewatering machine feeding conveyor are screw conveyors.

[0046] The automatic feeding control method includes automatic feeding control methods for processing the system startup process and the system operation process, including the following steps:

[0047] S1. Start the dehydrator and set the dehydrator frequency, such as 40Hz. Then, check the dehydrator's operating conditions. If the first operating condition is met, proceed directly to the next step. Otherwise, continue running the dehydrator until the second operating condition is met, and then proceed to the next step.

[0048] The first operating condition detection of the dehydrator is as follows: It is determined whether the liquid level in the dehydrator exceeds the upper limit. If the liquid level exceeds the upper limit, it is further determined whether the duration of this exceedance reaches the first upper limit. If the liquid level exceeds the upper limit (including the upper limit) and the duration reaches the first upper limit, then the first operating condition of the dehydrator is not met; otherwise, the first operating condition is met. For example, if the liquid level in the dehydrator exceeds 0.3 meters and this state lasts for 3 seconds or more, then the first operating condition is not met.

[0049] The second operating condition detection of the dehydrator is as follows: it is determined whether the liquid level of the dehydrator is within the upper limit and whether the duration reaches the second upper limit. If so, the second operating condition of the dehydrator is met; otherwise, it is not met. For example, if the liquid level of the dehydrator is within 0.3 meters and the duration of this state is 10 seconds or more, the second operating condition is met.

[0050] In one optional implementation, the startup method of the processing system further includes detecting the startup conditions of the processing system before starting the dehydrator. If the conditions are met, the dehydrator is started and subsequent steps are performed; otherwise, startup is not performed.

[0051] Specifically, the startup conditions for the processing system include: the bottom screw conveyor, the crusher feeding conveyor, the crusher, the dewatering machine feeding conveyor, and the dewatering machine are all functioning without fault. S2, start the dewatering machine feeding conveyor and run it for a certain period of time, such as 5 seconds, before proceeding to the next step.

[0052] S3, start the crusher and set the crusher frequency. When starting the crusher, you can first set the crusher to energy-saving mode, such as setting the frequency to 35Hz.

[0053] In one alternative implementation, when starting the crusher, the crusher is first rotated in the reverse direction for a certain period of time, then stopped for a certain period of time, and finally rotated in the forward direction. For example, the crusher is first rotated in the reverse direction for 5 seconds, then stopped for 5 seconds, and finally rotated in the forward direction. When starting the crusher, reversing the crusher allows flexible materials wrapped around the crusher to detach from the crusher cutter head, thus preventing the crusher cutter head from being entangled by flexible materials.

[0054] Then, the crusher's operating conditions are checked. If the conditions are met, proceed to the next step; otherwise, the crusher, dewatering machine's feeding conveyor, and dewatering machine are shut down in sequence.

[0055] S4. Start the crusher feeding conveyor and set its frequency. The frequency of the crusher feeding conveyor can be set to 20Hz first. After the crusher feeding conveyor has been running for a certain period of time, proceed to the next step.

[0056] S5, start the bottom screw conveyor and set the frequency of the bottom screw conveyor to 15Hz to complete the automatic feeding control method during the start-up process of the processing system.

[0057] Continue processing of automatic feeding control methods during system operation, including:

[0058] S6. Perform a test on the operating conditions of the dewatering machine. If the first operating condition is met, proceed directly to the next step. Otherwise, shut down the bottom screw conveyor, the crusher feed conveyor, and the crusher and dewatering machine feed conveyor in sequence, and keep the dewatering machine running until the second operating condition is met before proceeding to the next step.

[0059] S7. Perform crusher operating condition detection. If the conditions are met, proceed to the next step; otherwise, shut down the bottom screw conveyor and crusher feed conveyor in sequence, and keep the crusher running until the crusher operating conditions are met before proceeding to the next step.

[0060] The crusher operating condition detection includes determining whether the crusher torque has reached its upper limit and whether the duration of the torque exceeding the upper limit has reached its upper limit. If both the crusher torque and the duration reach their upper limits, the crusher operating conditions are not met; otherwise, the crusher operating conditions are met. For example, if the crusher torque reaches 50% of the rated torque and this state lasts for 20 seconds, the crusher operating conditions are not met.

[0061] S8, perform condition detection of the crusher feeding and conveying equipment, and adjust the frequency of the crusher feeding and conveying equipment and the frequency of the crusher according to the condition of the crusher feeding and conveying equipment.

[0062] The operation condition detection of the crusher feeding and conveying equipment includes detecting the torque of the crusher feeding and conveying equipment and the duration of the corresponding state, and adjusting the frequency of the crusher feeding and conveying equipment and the frequency of the crusher based on the torque and duration of the crusher feeding and conveying equipment. For example, if the detected torque of the crusher feeding and conveying equipment is 0-10% of the rated torque, and the duration of this state is 3 seconds, then the frequency of the crusher feeding and conveying equipment is set to 25Hz, and the crusher is set to energy-saving mode, such as setting the crusher frequency to 35Hz; if the detected torque of the crusher feeding and conveying equipment is 10-20% of the rated torque, and the duration of this state is 3 seconds, then the frequency of the crusher feeding and conveying equipment is set to 20Hz, and the crusher is set to working mode, such as setting the crusher frequency to 45Hz; if the detected torque of the crusher feeding and conveying equipment is greater than 20% of the rated torque, and the duration of this state is 3 seconds, then the frequency of the crusher feeding and conveying equipment is set to 15Hz, and the crusher is set to working mode, such as setting the crusher frequency to 45Hz.

[0063] S9, perform condition testing on the bottom screw conveyor and adjust its frequency according to the condition of the bottom screw conveyor.

[0064] The condition monitoring of the bottom screw conveyor includes detecting the torque of the bottom screw conveyor and the duration of the corresponding state, and adjusting the frequency of the bottom screw conveyor based on the torque and duration. For example, if the detected torque of the bottom screw conveyor is 0-10% of the rated torque and the state lasts for 3 seconds, the frequency of the bottom screw conveyor is set to 20Hz; if the detected torque is 10-20% of the rated torque and the state lasts for 3 seconds, the frequency of the bottom screw conveyor is set to 15Hz; if the detected torque is greater than 20% of the rated torque and the state lasts for 3 seconds, the frequency of the bottom screw conveyor is set to 10Hz.

[0065] The automatic feeding control method for food waste treatment provided by this invention combines the processing system with detection data in real time. Based on the real-time detection data between various components, the operation of the processing system is cross-adjusted to select the optimal control method for automated control. This not only achieves stable, uniform, and continuous feeding but also enables efficient energy utilization. Furthermore, this automatic feeding control method improves the efficiency and quality of food waste treatment while reducing manual labor intensity.

[0066] Numerous specific details are set forth in the specification provided herein. However, it will be understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0067] Furthermore, those skilled in the art will understand that although some embodiments described herein include certain features but not others included in other embodiments, combinations of features from different embodiments are intended to be within the scope of the invention and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.

[0068] Those skilled in the art will understand that although the invention has been described with reference to exemplary embodiments, various changes may be made and its elements may be substituted with equivalents without departing from the scope of the invention. Furthermore, many modifications may be made to adapt particular situations or materials to the teachings of the invention without departing from the essential scope of the invention. Therefore, the invention is not limited to the specific embodiments disclosed, but rather the invention will include all embodiments falling within the scope of the appended claims.

Claims

1. An automatic feeding control method for kitchen waste treatment, based on a kitchen waste treatment system, the treatment system comprising, in sequence, a receiving hopper, a bottom screw conveyor, a crusher feeding conveyor, a crusher, a dewatering machine feeding conveyor, and a dewatering machine, characterized in that, The automatic feeding control method is an automatic feeding control method for processing the operation of the system, including the following steps: Perform a test on the operating conditions of the dewatering machine. If the operating conditions of the dewatering machine are met, proceed directly to the next step; otherwise, shut down the bottom screw conveyor, the crusher feeding conveyor, and the crusher and dewatering machine feeding conveyor in sequence, and keep the dewatering machine running until the operating conditions of the dewatering machine are met before proceeding to the next step. Perform a crusher operating condition test. If the crusher operating conditions are met, proceed to the next step; otherwise, shut down the bottom screw conveyor and the crusher feed conveyor in sequence, and keep the crusher running until the crusher operating conditions are met before proceeding to the next step. The working condition of the crusher feeding and conveying equipment is tested, and the frequency of the crusher feeding and conveying equipment and the frequency of the crusher are adjusted according to the working condition of the crusher feeding and conveying equipment; the working condition test of the crusher feeding and conveying equipment includes detecting the torque of the crusher feeding and conveying equipment and the duration of the corresponding state, and adjusting the frequency of the crusher feeding and conveying equipment and the frequency of the crusher according to the torque and duration of the crusher feeding and conveying equipment. When the torque detected by the crusher's feeding conveyor is 0-10% of the rated torque, and this state lasts for 3 seconds, the frequency of the crusher's feeding conveyor is set to A1Hz, and the crusher is set to energy-saving mode with a frequency of B1Hz. When the torque detected by the crusher's feeding conveyor is 10-20% of the rated torque, and this state lasts for 3 seconds, the frequency of the crusher's feeding conveyor is set to A2Hz, and the crusher is set to working mode with a frequency of B2Hz. Where A1 > A2, B1 > A2. <B2; The operating condition of the bottom screw conveyor is tested, and its frequency is adjusted according to the operating condition of the bottom screw conveyor.

2. The automatic feeding control method for kitchen waste treatment according to claim 1, characterized in that, The automatic feeding control method also includes an automatic feeding control method for processing the system startup process, comprising the following steps: Start the dehydrator and set its frequency. Perform a dehydrator operation condition test. If the dehydrator operation conditions are met, proceed directly to the next step. Otherwise, continue running the dehydrator until the dehydrator operation conditions are met before proceeding to the next step. Start the dewatering machine's feeding conveyor and run it for a certain period of time before proceeding to the next step. Start the crusher and set the crusher frequency. Perform a crusher operating condition test. If the condition is met, proceed to the next step; otherwise, shut down the crusher, dewatering machine feeding conveyor, and dewatering machine in sequence. Start the crusher feeding conveyor and set its frequency. After the crusher feeding conveyor has been running for a certain period of time, proceed to the next step. Start the bottom screw conveyor and set its frequency.

3. The automatic feeding control method for kitchen waste treatment according to claim 2, characterized in that, In the startup method of the processing system, before starting the dehydrator, the startup conditions of the processing system are checked. If the conditions are met, the dehydrator is started and subsequent steps are performed; otherwise, the system is not started.

4. The automatic feeding control method for kitchen waste treatment according to claim 3, characterized in that, The startup conditions for the processing system include: the bottom screw conveyor, the crusher feeding conveyor, the crusher, the dewatering machine feeding conveyor, and the dewatering machine are all without faults.

5. The automatic feeding control method for kitchen waste treatment according to claim 2, characterized in that, When starting the crusher, first run the crusher in the reverse direction for a certain period of time, then stop the crusher for a certain period of time, and finally run the crusher in the forward direction.

6. The automatic feeding control method for kitchen waste treatment according to claim 1 or 2, characterized in that, The dehydrator operating condition detection is as follows: determine whether the dehydrator liquid level exceeds the upper limit; if the dehydrator liquid level exceeds the upper limit, determine whether the duration exceeds the upper limit; if the dehydrator liquid level exceeds the upper limit and the duration exceeds the upper limit, the dehydrator operating condition is not met; otherwise, the first operating condition of the dehydrator is met.

7. The automatic feeding control method for kitchen waste treatment according to claim 1 or 2, characterized in that, The crusher operating condition detection includes determining whether the crusher torque has reached the upper limit and whether the duration of the torque exceeding the upper limit has reached the upper limit. If both the crusher torque and the duration have reached the upper limit, the crusher operating conditions are not met; otherwise, the crusher operating conditions are met.

8. The automatic feeding control method for kitchen waste treatment according to claim 1, characterized in that, The condition monitoring of the bottom screw conveyor includes detecting the torque of the bottom screw conveyor and the duration of the corresponding state, and adjusting the frequency of the bottom screw conveyor based on the torque and duration of the bottom screw conveyor.

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