CN-115854680-B - Constant temperature control method, equipment and storage medium in feed production process

CN115854680BCN 115854680 BCN115854680 BCN 115854680BCN-115854680-B

Abstract

The invention provides a constant temperature control method, equipment and a storage medium in a feed production process, wherein the top of a horizontal drying cylinder is provided with a plurality of air inlets, and the middle of the top of the horizontal drying cylinder is provided with an air outlet; and when the horizontal drying cylinder is in an operating state, continuously acquiring the real-time space temperature distribution condition in the horizontal drying cylinder to adjust the temperature of each subspace in real time, so that each subspace is in a target temperature interval. The invention can quickly realize the constant temperature control of the whole drying cylinder.

Inventors

GUO FAN
ZHENG XINYU
XU YONG
LIU QIAN

Assignees

格莱德(福建)生物科技有限公司

Dates

Publication Date: 20260508
Application Date: 20220727

Claims (9)

1. The constant temperature control method in the feed production process is characterized in that a plurality of air inlets are formed in the top of a horizontal drying cylinder, and an air outlet is formed in the middle of the top of the horizontal drying cylinder, and the method comprises the following steps: s1, constructing a space temperature distribution model in a horizontal drying cylinder, and dividing the whole space in the horizontal drying cylinder into a plurality of subspaces in the space temperature distribution model; Step S2, continuously changing adjusting parameters in the parameter adjusting ranges of the air inlets so as to track the temperature change of each subspace in real time, thereby obtaining the functional corresponding relation between each subspace and the adjusting parameters of the air inlets, wherein the adjusting parameters comprise the air inlet quantity, the air inlet temperature and the air inlet angle; step S3, continuously acquiring real-time space temperature distribution conditions in the horizontal drying cylinder through a thermal imaging technology when the horizontal drying cylinder is in an operating state, and adjusting the temperature of each subspace based on the real-time temperature of each subspace and the functional corresponding relation between each subspace and the adjusting parameters of the plurality of air inlets so that each subspace is in a target temperature interval; The step S3 includes: When the horizontal drying cylinder is in an operating state, continuously acquiring real-time space temperature distribution conditions in the horizontal drying cylinder through a thermal imaging technology; judging whether each subspace is in a target temperature interval in real time, if so, waiting for the next judgment, otherwise, taking the subspace exceeding the target temperature interval as an adjusting subspace, and taking the subspace in the target temperature interval as a constraint subspace; Acquiring a function corresponding relation between each adjusting subspace and adjusting parameters of a plurality of air inlets, taking the target temperature interval as a condition parameter of the function corresponding relation corresponding to each adjusting subspace to obtain an adjusting function set, taking the temperature of the constraint subspace in the target temperature interval as a constraint condition of the adjusting function set to obtain an adjusting parameter solution in the adjusting function set, wherein the adjusting parameter solution comprises target adjusting parameters of the plurality of air inlets; And controlling the plurality of air inlets to perform hot air introduction according to the adjustment parameter solution.
2. The method according to claim 1, wherein the step S3 further comprises: And if the adjustment parameter solution does not exist in the adjustment function set, continuously adjusting the adjustment parameters of the two air outlets according to the function corresponding relation corresponding to each subspace to evolve the adjusted predicted temperature of each subspace, and taking the adjustment parameter when the average number of the square values of the difference values between the predicted temperatures of all subspaces and the intermediate value of the target temperature interval is the minimum as the adjustment parameter solution in the adjustment function set.
3. The method according to claim 2, wherein the step S3 is to solve the adjustment parameters of the adjustment function set, which are the adjustment parameters when the average number of the square values of the differences between the predicted temperatures of all the subspaces and the intermediate values of the target temperature interval is the minimum, as: Obtaining a difference value between the predicted temperature of each subspace and the intermediate value of the target temperature interval, multiplying the corresponding difference value by a first coefficient if the predicted temperature is greater than or equal to the intermediate value of the target temperature interval, and multiplying the corresponding difference value by a second coefficient if the predicted temperature is not greater than or equal to the intermediate value of the target temperature interval, wherein the first coefficient is smaller than the second coefficient; Taking all the adjustment parameters with the minimum average value of the square values of the difference values multiplied by the coefficients as adjustment parameter solutions in the adjustment function groups.
4. A method of thermostatic control in a feed production process according to claim 3 wherein the first coefficient is [0.8,1 ] times the second coefficient.
5. A method of thermostatic control in a feed production process according to any one of claims 1 to 4 wherein step S3 further comprises: and when the horizontal drying cylinder is in an idle state, each subspace is firstly adjusted to be in a target temperature interval, and then the horizontal drying cylinder is switched to an operating state.
6. A method of thermostatic control in a feed production process according to any one of claims 1 to 4 wherein the top two sides of the horizontal dryer are each provided with an air inlet.
7. A method of thermostatic control in a feed production process according to any one of claims 1 to 4 wherein the adjustment parameters include at least one of intake air volume, intake air temperature and intake air angle.
8. A thermostatic control device in a feed production process comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements a thermostatic control method in a feed production process according to any one of claims 1 to 7 when executing the computer program.
9. A computer-readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements a method for thermostatic control in a feed production process according to any one of claims 1 to 7.

Description

Constant temperature control method, equipment and storage medium in feed production process Technical Field The invention relates to the technical field of feed production, in particular to a constant temperature control method, constant temperature control equipment and a storage medium in the feed production process. Background In the production process of the puffed feed, a drying procedure is indispensable, and a hot air drying technology is currently commonly used. In the prior art, hot air is introduced into the drying cylinder from the air inlet, and the temperature of the hot air gradually decreases along with the increase of the distance and the contact with the feed to be dried, so that the temperature deviation at the air inlet and the air outlet is caused, and the feed drying is not facilitated, especially the feed sensitive to the temperature is avoided. Accordingly, it is desirable to provide a method that maintains the temperature of the entire dryer cartridge in a relatively balanced manner. Disclosure of Invention In order to solve the problems in the prior art, the invention provides a constant temperature control method, equipment and a storage medium in the feed production process, which can realize the constant temperature control of the whole drying cylinder. In order to achieve the above purpose, the invention adopts the following technical scheme: in a first aspect, the present invention provides a method for controlling constant temperature in a feed production process, wherein a plurality of air inlets are provided at the top of a horizontal drying cylinder, and an air outlet is provided in the middle of the top of the horizontal drying cylinder, the method comprising: s1, constructing a space temperature distribution model in a horizontal drying cylinder, and dividing the whole space in the horizontal drying cylinder into a plurality of subspaces in the space temperature distribution model; Step S2, continuously changing adjusting parameters in the parameter adjusting ranges of the air inlets so as to track the temperature change of each subspace in real time, thereby obtaining the functional corresponding relation between each subspace and the adjusting parameters of the air inlets, wherein the adjusting parameters comprise the air inlet quantity, the air inlet temperature and the air inlet angle; and S3, continuously acquiring real-time space temperature distribution conditions in the horizontal drying cylinder through a thermal imaging technology when the horizontal drying cylinder is in an operating state, and adjusting the temperature of each subspace based on the real-time temperature of each subspace and the functional corresponding relation between each subspace and the adjusting parameters of the plurality of air inlets so that each subspace is in a target temperature interval. The invention has the beneficial effects that the space temperature distribution model in the horizontal drying cylinder is constructed in advance, and the functional correspondence between each subspace in the horizontal drying cylinder and the adjusting parameters of the plurality of air inlets is obtained, so that when the horizontal drying cylinder is in an operating state, the temperature of each subspace is too high or too low, the adjusting parameters of the two air outlets can be quickly adjusted according to the functional correspondence obtained in advance, thereby quickly realizing the constant temperature control of the whole drying cylinder. Optionally, the step S3 includes: When the horizontal drying cylinder is in an operating state, continuously acquiring real-time space temperature distribution conditions in the horizontal drying cylinder through a thermal imaging technology; judging whether each subspace is in a target temperature interval in real time, if so, waiting for the next judgment, otherwise, taking the subspace exceeding the target temperature interval as an adjusting subspace, and taking the subspace in the target temperature interval as a constraint subspace; Acquiring a function corresponding relation between each adjusting subspace and adjusting parameters of a plurality of air inlets, taking the target temperature interval as a condition parameter of the function corresponding relation corresponding to each adjusting subspace to obtain an adjusting function set, taking the temperature of the constraint subspace in the target temperature interval as a constraint condition of the adjusting function set to obtain an adjusting parameter solution in the adjusting function set, wherein the adjusting parameter solution comprises target adjusting parameters of the plurality of air inlets; And controlling the plurality of air inlets to perform hot air introduction according to the adjustment parameter solution. According to the description, the temperature of the internal space after adjustment is ensured to be in the target temperature interval through the adjustment funct