Automatic control method and system for cottonseed extraction workshop

Abstract

This application relates to the field of cottonseed processing technology, and more particularly to an automatic control method and system for a cottonseed extraction plant. Specifically disclosed are: a central control module for acquiring data on the cottonseed to be extracted and setting the operating parameters of each subsystem based on the data; a first data acquisition module for collecting material level data from the extractor hopper; a second data acquisition module for collecting liquid level data from the mixing oil tank; a third data acquisition module for collecting ambient temperature data and hot meal temperature data; a first sub-control module for setting the extractor spindle speed based on the material level data; a second sub-control module for setting the operating condition matrix of the mixed oil enrichment system; and a third sub-control module for setting the operating parameters of the DTDC system. Through the central control module and the various sub-control modules, real-time and precise adjustment of the operating parameters of each system is achieved, improving the production efficiency of the cottonseed extraction plant and reducing energy consumption.

Description

Technical Field

[0001] The present application relates to the technical field of cottonseed processing, and in particular to an automatic control method and system for a cottonseed extraction workshop. Background Art

[0002] At present, the cottonseed extraction workshop is mainly composed of the extractor system, wet meal steam removal system and meal conveying system, mixed oil evaporation and stripping system, solvent condensation recovery and storage system, tail gas recovery system, extraction and other main components and auxiliary systems such as water, electricity, steam and gas. At this stage, human control is required at each stage of the production process, and the adjustment of the working parameters of each system has a lag and the adjustment accuracy is not high, resulting in low production efficiency and high energy consumption in the cottonseed extraction workshop.

[0003] In addition, the current cottonseed production workshop is unable to realize the material level control of the extraction storage box, the liquid level control of the last oil grid of the extractor, the wet meal material level control and alarm of the extractor, and the liquid level control and timed slag discharge of the mixed oil tank. Summary of the Invention

[0004] The purpose of this application is: to solve the above problems, this application provides an automatic control method and system for a cottonseed extraction workshop to solve the problems of low production efficiency and high energy consumption in the current cottonseed extraction workshop.

[0005] In some embodiments of the present application, a preset cotton seed material level matrix to be extracted and a preset extractor spindle speed matrix are set, and the extractor spindle speed is automatically controlled by the first sub-control module to ensure the stability of the material level in the hopper.

[0006] In some embodiments of the present application, a first preset liquid level and a first preset time interval are preset for the mixing oil tank. According to the preset time interval, the second control module automatically discharges the sediment at the bottom of the mixing oil tank to the upper material bed of the extractor at a regular time, thereby realizing liquid level control and timed slag discharge of the mixing oil tank, reducing the cleaning frequency, and reducing energy consumption.

[0007] Some embodiments of the present application provide an automatic control method for a cottonseed extraction workshop, characterized by comprising:

[0008] Step 1: The central control module obtains data of cotton seeds to be leached and sets working parameters of each sub-working system according to the data of cotton seeds to be leached;

[0009] Step 2: Acquire real-time production data of each working system according to a preset time interval, and modify the preset working parameters of each sub-working system according to the real-time production data;

[0010] Step 3: Determine whether the real-time production data of each work system meets the preset value, and send an early warning instruction based on the judgment result;

[0011] Step one includes:

[0012] Obtaining the material level data collected by the first acquisition module, and setting the main shaft speed of the extractor according to the material level data;

[0013] Set the working condition matrix of the mixed oil enrichment system;

[0014] Set the DTDC system operating parameters.

[0015] In some embodiments of the present application, the setting of the main shaft speed of the extractor according to the material level data includes:

[0016] A matrix A of cotton seed material positions to be leached is preset, and A(A1, A2, A3, A4) is set, wherein A1 is the first preset cotton seed material position to be leached, A2 is the second cotton seed material position to be leached, A3 is the third preset cotton seed material position to be leached, and A4 is the fourth cotton seed material position to be leached, and A1<A2<A3<A4;

[0017] Preset the extractor spindle speed matrix B, set B(B1, B2, B3, B4), set B1 as the first preset extractor spindle speed, B2 as the second extractor spindle speed, B3 as the third extractor spindle speed, B4 as the fourth extractor spindle speed, and B1 < B2 < B3 < B4;

[0018] The real-time extractor cotton seed material level data a is obtained, and according to the relationship between the cotton seed material level matrix A and the extractor spindle speed matrix B, the real-time extractor spindle speed value b is set, which is specifically:

[0019] When a<A1, the real-time extractor main shaft speed value b is set to the first preset extractor main shaft speed B1, that is, b=B1;

[0020] When A1<a<A2, the real-time extractor main shaft speed value b is set to the second preset extractor main shaft speed B2, that is, b=B2;

[0021] When A2<a<A3, the real-time extractor main shaft speed value b is set to the third preset extractor main shaft speed B3, that is, b=B3;

[0022] When A3<a<A4, the real-time extractor main shaft speed value b is set to the fourth preset extractor main shaft speed B4, that is, b=B4.

[0023] In some embodiments of the present application, the setting of the working condition matrix of the mixed oil enrichment system includes:

[0024] Set a first preset working condition matrix M1 (m1, n1), a second preset working condition matrix M2 (m2, n2), a third preset working condition matrix M3 (m3, n3), and a fourth preset working condition matrix M4 (m4, n4), wherein m1 to m4 are the first to fourth preset mixing oil pumping speeds, and m1 < m2 < m3 < m4, and n1 to n4 are the first to fourth preset filter filtration speeds, and n1 < n2 < n3 < n4;

[0025] According to the real-time set extractor main shaft speed value b, the working matrix M of the mixed oil enrichment system is set, which is specifically:

[0026] When b=B1, the working matrix M of the mixed oil enrichment system is set to the first preset working condition matrix M1;

[0027] When b=B2, the working matrix M of the mixed oil enrichment system is set to the second preset working condition matrix M2;

[0028] When b=B3, the working matrix M of the mixed oil enrichment system is set to the third preset working condition matrix M3;

[0029] When b=B4, the working matrix M of the mixed oil enrichment system is set to the fourth preset working condition matrix M4.

[0030] In some embodiments of the present application, the setting of the working condition matrix of the mixed oil enrichment system further includes:

[0031] Presetting a first preset liquid level and a first preset time interval in the mixing oil tank;

[0032] Acquire the liquid level data of the mixing oil tank collected by the second collection module, and determine whether the liquid level data of the mixing oil tank is greater than a first preset liquid level of the preset mixing oil tank;

[0033] If the liquid level data of the mixed oil tank is greater than the first preset liquid level of the preset mixed oil tank, the second warning module sends an over-volume warning instruction to the central control module;

[0034] The central control module sends a slag discharge instruction to the second sub-control module according to a preset first preset time interval, and the second sub-control module controls the sediment at the bottom of the mixing oil tank to be transferred to the upper material bed of the extractor.

[0035] In some embodiments of the present application, setting the DTDC system operating parameters includes:

[0036] The difference matrix C between the preset ambient temperature and the hot meal temperature is set as C(C1, C2, C3, C4), where C1 is the difference between the first preset ambient temperature and the hot meal temperature, C2 is the difference between the second preset ambient temperature and the hot meal temperature, C3 is the difference between the third preset ambient temperature and the hot meal temperature, and C4 is the difference between the fourth preset ambient temperature and the hot meal temperature, and C1<C2<C3<C4;

[0037] A heating time matrix T of the preset air heater is set to T(T1, T2, T3, T4), where T1 is the first preset heating time, T2 is the second preset heating time, T3 is the third preset heating time, and T4 is the fourth preset heating time, and T1 < T2 < T3 < T4;

[0038] Obtain the difference c between the real-time ambient temperature and the hot meal temperature, the relationship between the difference matrix C between the ambient temperature and the hot meal temperature and the heating time matrix T of the air heater, and set the real-time heating time t, which is specifically:

[0039] When c<C1, the real-time heating time t is set to the first preset heating time T1;

[0040] When C1<c<C2, the real-time heating time t is set to the second preset heating time T2;

[0041] When C2<c<C3, the real-time heating time t is set to the third preset heating time T3;

[0042] When C3<c<C4, the real-time heating time t is set to the fourth preset heating time T4.

[0043] In some embodiments of the present application, the setting of the DTDC system operating parameters further includes:

[0044] The wet meal data processed by the extractor is obtained, and the working parameters of the pre-delayer, the desolventizing layer, the direct steam spraying layer and the comprehensive layer are set according to the wet meal data.

[0045] Some embodiments of the present application provide an automatic control system for a cottonseed extraction plant, comprising:

[0046] A central control module, the central control module is used to obtain data of cotton seeds to be leached and set working parameters of each sub-working system according to the data of cotton seeds to be leached;

[0047] a first data acquisition module, disposed on the extractor hopper and wirelessly connected to the central control module, the first data acquisition module being used to collect material level data of the extractor hopper;

[0048] a second data acquisition module, disposed in the mixing oil tank and wirelessly connected to the central control module, the second data acquisition module being used to collect liquid level data of the mixing oil tank;

[0049] A third data acquisition module is provided on the degassing machine and is wirelessly connected to the central control module. The third data acquisition module is used to collect ambient temperature data and hot meal temperature data;

[0050] The first sub-control module is used to set the main shaft speed of the extractor according to the material level data;

[0051] The second sub-control module is used to set the working condition matrix of the mixed oil enrichment system;

[0052] The third sub-control module is used to set the DTDC system operating parameters.

[0053] In some embodiments of the present application, the first sub-control module is further configured to:

[0054] Preset the matrix of cotton seed material positions to be extracted and the matrix of main shaft speed of the extractor;

[0055] Real-time cotton seed material level data of the extractor is obtained, and the real-time extractor main shaft speed value is set according to the relationship between the cotton seed material level matrix and the extractor main shaft speed matrix.

[0056] In some embodiments of the present application, further comprising:

[0057] A second judgment module is used to obtain the mixed oil tank liquid level data collected by the second collection module, and to judge whether the mixed oil tank liquid level data is greater than a preset first preset liquid level of the mixed oil tank;

[0058] a second early warning module, which sends an over-volume early warning instruction to the central control module when the liquid level data of the mixed oil tank is greater than a first preset liquid level of the preset mixed oil tank;

[0059] The second sub-control module is used for:

[0060] Set a first preset working condition matrix M1 (m1, n1), a second preset working condition matrix M2 (m2, n2), a third preset working condition matrix M3 (m3, n3), and a fourth preset working condition matrix M4 (m4, n4), wherein m1 to m4 are the first to fourth preset mixing oil pumping speeds, and m1 < m2 < m3 < m4, and n1 to n4 are the first to fourth preset filter filtration speeds, and n1 < n2 < n3 < n4;

[0061] The second sub-control module is further configured to set the working matrix M of the mixed oil enrichment system according to the real-time extractor main shaft speed value set in real time;

[0062] The second sub-control module is further used to control the transfer of sediment at the bottom of the mixing oil tank to the upper material bed of the extractor.

[0063] In some embodiments of the present application, further comprising:

[0064] The third processing module is used to obtain the ambient temperature data and hot meal temperature data collected by the third data acquisition module, and generate the difference between the real-time ambient temperature and the hot meal temperature

[0065] The third sub-control module is further configured to:

[0066] A preset matrix of differences between ambient temperature and hot meal temperature and a preset matrix of heating time of air heater;

[0067] Obtaining the difference between the real-time ambient temperature and the hot meal temperature generated by the third processing module, the relationship between the difference matrix between the ambient temperature and the hot meal temperature and the heating time matrix of the air heater, and setting the real-time heating time;

[0068] The third sub-control module is further configured to:

[0069] The wet meal data processed by the extractor is obtained, and the working parameters of the pre-delayer, the desolventizing layer, the direct steam spraying layer and the comprehensive layer are set according to the wet meal data.

[0070] Compared with the prior art, the automatic control method and system of the cottonseed leaching workshop in the embodiment of the present application has the following beneficial effects:

[0071] Through the central control module and various sub-control modules, real-time and precise adjustment of the working parameters of each system can be achieved, thereby improving the production efficiency of the cottonseed extraction workshop and reducing energy consumption.

[0072] It can realize the material level control of the extraction storage box, the liquid level control of the last oil grid of the extractor, the wet meal material level control and alarm of the extractor, and the liquid level control and timed slag discharge of the mixed oil tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0073] Figure 1 This is a flow chart of an automatic control method for a cottonseed leaching workshop in a preferred embodiment of the present application;

[0074] Figure 2 It is a structural diagram of an automatic control system of a cotton seed extraction workshop in a preferred embodiment of the present application. DETAILED DESCRIPTION

[0075] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0076] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0077] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this application, unless otherwise specified, "plurality" means two or more.

[0078] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0079] like Figure 1 As shown, an automatic control method for a cottonseed leaching workshop according to a preferred embodiment of the present application includes:

[0080] Step 1: The central control module obtains the data of the cotton seeds to be leached and sets the working parameters of each sub-system according to the data of the cotton seeds to be leached;

[0081] Step 2: Acquire real-time production data of each working system according to a preset time interval, and modify the preset working parameters of each sub-working system according to the real-time production data;

[0082] Step 3: Determine whether the real-time production data of each work system meets the preset value, and send an early warning instruction based on the judgment result;

[0083] Specifically, step one includes:

[0084] Obtaining the material level data collected by the first acquisition module, and setting the main shaft speed of the extractor according to the material level data;

[0085] Set the working condition matrix of the mixed oil enrichment system;

[0086] Set the DTDC system operating parameters.

[0087] Specifically, the extractor's main process flow is as follows: The pre-treated feed scraper feeds the material into the extractor's feed hopper via a safety plate and a sealed feed auger. A level sensor located above the hopper automatically controls the extractor's main shaft speed, ensuring a stable material level. The material is transported within the extractor by a drag chain, where it flips at the tail end of the upper layer and falls onto the lower grating, continuing to the discharge port. Fresh solvent is added near the discharge port to minimize the solvent oil content in the wet meal. Between the feed and discharge ports, the material is sprayed and soaked with a mixture of decreasing concentrations, creating a countercurrent flow. The specially designed extract collection hopper in the draining section creates a pressure differential above and below the grating, enhancing the final draining process. This design ensures optimal meal drainage without any side effects. The drained wet meal is discharged from the bottom of the extractor and fed by a wet meal scraper into the DTDC system.

[0088] Specifically, the concentrated mixed oil is drawn out from the upper mixed oil collection hopper near the feed hopper, and is pumped into the cyclone separator and self-cleaning filter by the full mixed oil pump to remove the meal fines, and then enters the mixed oil tank. The mixed oil tank can play a role in sedimentation and buffering.

[0089] Specifically, the DTDC system consists of wet meal desolventizing (DT), drying and cooling (DC), and transportation systems.

[0090] Specifically, when setting the spindle speed of the extractor according to the material level data, it includes:

[0091] A matrix A of cotton seed material positions to be leached is preset, and A(A1, A2, A3, A4) is set, wherein A1 is the first preset cotton seed material position to be leached, A2 is the second cotton seed material position to be leached, A3 is the third preset cotton seed material position to be leached, and A4 is the fourth cotton seed material position to be leached, and A1<A2<A3<A4;

[0092] Preset the extractor spindle speed matrix B, set B(B1, B2, B3, B4), set B1 as the first preset extractor spindle speed, B2 as the second extractor spindle speed, B3 as the third extractor spindle speed, B4 as the fourth extractor spindle speed, and B1 < B2 < B3 < B4;

[0093] Get the real-time cotton seed material level data a of the extractor, and set the real-time extractor spindle speed value b according to the relationship between the cotton seed material level matrix A and the extractor spindle speed matrix B, which is specifically:

[0094] When a<A1, the real-time extractor main shaft speed value b is set to the first preset extractor main shaft speed B1, that is, b=B1;

[0095] When A1<a<A2, the real-time extractor main shaft speed value b is set to the second preset extractor main shaft speed B2, that is, b=B2;

[0096] When A2<a<A3, the real-time extractor main shaft speed value b is set to the third preset extractor main shaft speed B3, that is, b=B3;

[0097] When A3<a<A4, the real-time extractor main shaft speed value b is set to the fourth preset extractor main shaft speed B4, that is, b=B4.

[0098] Specifically, when setting the working condition matrix of the mixed oil enrichment system, it includes:

[0099] Set a first preset working condition matrix M1 (m1, n1), a second preset working condition matrix M2 (m2, n2), a third preset working condition matrix M3 (m3, n3), and a fourth preset working condition matrix M4 (m4, n4), wherein m1 to m4 are the first to fourth preset mixing oil pumping speeds, and m1 < m2 < m3 < m4, and n1 to n4 are the first to fourth preset filter filtration speeds, and n1 < n2 < n3 < n4;

[0100] Specifically, according to the real-time set extractor spindle speed value b, the working matrix M of the mixed oil enrichment system is set, which is specifically:

[0101] When b=B1, the working matrix M of the mixed oil enrichment system is set to the first preset working condition matrix M1;

[0102] When b=B2, the working matrix M of the mixed oil enrichment system is set to the second preset working condition matrix M2;

[0103] When b=B3, the working matrix M of the mixed oil enrichment system is set to the third preset working condition matrix M3;

[0104] When b=B4, the working matrix M of the mixed oil enrichment system is set to the fourth preset working condition matrix M4.

[0105] It can be understood that in the above embodiment, by setting a preset cotton seed material level matrix to be extracted and a preset extractor spindle speed matrix, and automatically controlling the extractor spindle speed through the first sub-control module, the material level in the hopper is ensured to be stable.

[0106] The working parameters of the mixed oil enrichment system are dynamically adjusted through the spindle speed data. The faster the spindle speed, the faster the spray speed. At this time, the working parameters of the mixed oil enrichment system need to be dynamically adjusted to ensure that the mixed oil flow entering the evaporation system is relatively stable.

[0107] In a preferred embodiment of the present application, the following further comprises:

[0108] Presetting a first preset liquid level and a first preset time interval in the mixing oil tank;

[0109] Obtaining the liquid level data of the mixed oil tank collected by the second collection module, and determining whether the liquid level data of the mixed oil tank is greater than a first preset liquid level of the preset mixed oil tank;

[0110] Specifically, when the liquid level data of the mixed oil tank is greater than the first preset liquid level of the preset mixed oil tank, the second warning module sends an over-volume warning instruction to the central control module;

[0111] Specifically, a slag discharge instruction is sent to the second sub-control module at a preset first preset time interval, and the second sub-control module controls the sediment at the bottom of the mixing oil tank to be transferred to the upper material bed of the extractor.

[0112] It can be understood that in the above embodiment, by presetting the first preset liquid level and the first preset time interval of the mixing oil tank, the second control module automatically discharges the sediment at the bottom of the mixing oil tank to the upper material bed of the extractor at a regular time according to the preset time interval, thereby realizing liquid level control and timed slag discharge of the mixing oil tank, reducing the cleaning frequency, and reducing energy consumption.

[0113] In a preferred embodiment of the present application, setting the DTDC system operating parameters includes:

[0114] The difference matrix C between the preset ambient temperature and the hot meal temperature is set as C(C1, C2, C3, C4), where C1 is the difference between the first preset ambient temperature and the hot meal temperature, C2 is the difference between the second preset ambient temperature and the hot meal temperature, C3 is the difference between the third preset ambient temperature and the hot meal temperature, and C4 is the difference between the fourth preset ambient temperature and the hot meal temperature, and C1<C2<C3<C4;

[0115] A heating time matrix T of the preset air heater is set to T(T1, T2, T3, T4), where T1 is the first preset heating time, T2 is the second preset heating time, T3 is the third preset heating time, and T4 is the fourth preset heating time, and T1 < T2 < T3 < T4;

[0116] Obtain the difference c between the real-time ambient temperature and the hot meal temperature, the relationship between the difference matrix C between the ambient temperature and the hot meal temperature and the heating time matrix T of the air heater, and set the real-time heating time t, which is specifically:

[0117] When c<C1, the real-time heating time t is set to the first preset heating time T1;

[0118] When C1<c<C2, the real-time heating time t is set to the second preset heating time T2;

[0119] When C2<c<C3, the real-time heating time t is set to the third preset heating time T3;

[0120] When C3<c<C4, the real-time heating time t is set to the fourth preset heating time T4.

[0121] Specifically, the wet meal data processed by the extractor is obtained, and the working parameters of the pre-delayer, desolventizing layer, direct steam spraying layer and comprehensive layer are set according to the wet meal data.

[0122] Specifically, setting the DTDC system operating parameters also includes:

[0123] The hot meal after desolventization falls from the integrated layer into the drying layer through the rotary valve. The ambient air is heated by the fan through the air heater into hot air and then blown into the meal from the jacket of the drying layer to dry the meal; the ambient air is used to cool the meal in the cooling layer.

[0124] As can be appreciated, in the above embodiment, the real-time heating time is set by obtaining the difference between the real-time ambient temperature and the hot meal temperature. This can effectively save energy and increase production rates. By automatically adjusting the operating parameters of the drying and cooling layers, the temperature and moisture content of the meal are adjusted to meet storage requirements.

[0125] like Figure 2 As shown, in another preferred embodiment based on the above embodiment, this embodiment provides an automatic control system for a cotton seed extraction workshop, comprising:

[0126] Central control module, which is used to obtain data of cotton seeds to be leached and set working parameters of each sub-system according to the data of cotton seeds to be leached;

[0127] A first data acquisition module is provided on the extractor hopper and is wirelessly connected to the central control module. The first data acquisition module is used to collect material level data of the extractor hopper;

[0128] A second data acquisition module is provided in the mixing oil tank and is wirelessly connected to the central control module. The second data acquisition module is used to collect liquid level data of the mixing oil tank;

[0129] The third data acquisition module is provided on the degassing machine and is wirelessly connected to the central control module. The third data acquisition module is used to collect ambient temperature data and hot meal temperature data;

[0130] The first sub-control module is used to set the main shaft speed of the extractor according to the material level data;

[0131] The second sub-control module is used to set the working condition matrix of the mixed oil enrichment system;

[0132] The third sub-control module is used to set the DTDC system operating parameters.

[0133] A second judgment module is used to obtain the mixed oil tank liquid level data collected by the second collection module, and to judge whether the mixed oil tank liquid level data is greater than a preset first preset liquid level of the mixed oil tank;

[0134] The second early warning module sends an over-volume early warning instruction to the central control module when the liquid level data of the mixed oil tank is greater than the first preset liquid level of the preset mixed oil tank;

[0135] The third processing module is used to obtain the ambient temperature data and hot meal temperature data collected by the third data acquisition module, and generate the difference between the real-time ambient temperature and the hot meal temperature

[0136] Specifically, the first data acquisition module is preferably a plurality of material level sensors, the second data acquisition module is preferably a plurality of liquid level sensors, and the third data acquisition module is preferably a plurality of temperature sensors.

[0137] Specifically, the first sub-control module is further configured to:

[0138] Preset the matrix of cotton seed material positions to be extracted and the matrix of main shaft speed of the extractor;

[0139] The real-time cotton seed material level data of the extractor is obtained, and the real-time extractor spindle speed value is set according to the relationship between the cotton seed material level matrix and the extractor spindle speed matrix.

[0140] Specifically, the second sub-control module is used to:

[0141] Set a first preset working condition matrix M1 (m1, n1), a second preset working condition matrix M2 (m2, n2), a third preset working condition matrix M3 (m3, n3), and a fourth preset working condition matrix M4 (m4, n4), wherein m1 to m4 are the first to fourth preset mixing oil pumping speeds, and m1 < m2 < m3 < m4, and n1 to n4 are the first to fourth preset filter filtration speeds, and n1 < n2 < n3 < n4;

[0142] The second sub-control module is further used to set the working matrix M of the mixed oil enrichment system according to the real-time extractor main shaft speed value set in real time;

[0143] The second sub-control module is also used to control the transfer of sediment at the bottom of the mixed oil tank to the upper material bed of the extractor

[0144] Specifically, the third sub-control module is further configured to:

[0145] A preset matrix of differences between ambient temperature and hot meal temperature and a preset matrix of heating time of air heater;

[0146] Obtain the difference between the real-time ambient temperature and the hot meal temperature generated by the third processing module, the relationship between the difference matrix between the ambient temperature and the hot meal temperature and the heating time matrix of the air heater, and set the real-time heating time;

[0147] Specifically, the third sub-control module is further configured to:

[0148] The wet meal data processed by the extractor is obtained, and the working parameters of the pre-delayer, desolventizing layer, direct steam spraying layer and comprehensive layer are set according to the wet meal data.

[0149] A second judgment module is used to obtain the mixed oil tank liquid level data collected by the second collection module, and to judge whether the mixed oil tank liquid level data is greater than a preset first preset liquid level of the mixed oil tank;

[0150] The second early warning module sends an over-volume early warning instruction to the central control module when the liquid level data of the mixed oil tank is greater than the first preset liquid level of the preset mixed oil tank;

[0151] The third processing module is used to obtain the ambient temperature data and hot meal temperature data collected by the third data collection module, and generate the difference between the real-time ambient temperature and the hot meal temperature.

[0152] According to the first concept of the present application, a preset cotton seed material level matrix to be leached and a preset extractor spindle speed matrix are set, and the extractor spindle speed is automatically controlled by the first sub-control module to ensure the stability of the material level in the hopper.

[0153] According to the second concept of the present application, a first preset liquid level and a first preset time interval are preset for the mixing oil tank. According to the preset time interval, the second control module automatically discharges the sediment at the bottom of the mixing oil tank to the upper material bed of the extractor at a regular time, thereby realizing liquid level control and timed slag discharge of the mixing oil tank, reducing the cleaning frequency and reducing energy consumption.

[0154] The above is only a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and replacements can be made without departing from the technical principles of the present application. These improvements and replacements should also be regarded as the scope of protection of the present application.

Claims

1. An automatic control method for a cotton seed leaching workshop, characterized in that: include: Step 1: The central control module obtains data of cotton seeds to be leached and sets working parameters of each sub-working system according to the data of cotton seeds to be leached; Step 2: Acquire real-time production data of each working system according to a preset time interval, and modify the preset working parameters of each sub-working system according to the real-time production data; Step 3: Determine whether the real-time production data of each work system meets the preset value, and send an early warning instruction based on the judgment result; Step one includes: Obtaining the material level data collected by the first acquisition module, and setting the main shaft speed of the extractor according to the material level data; Set the working condition matrix of the mixed oil enrichment system; Set DTDC system operating parameters; The TDC system includes wet meal desolventizing (DT), drying and cooling (DC), and conveying systems; The process of setting the main shaft speed of the extractor according to the material level data includes: Obtain real-time extractor cotton seed material level data a, and set the real-time extractor spindle speed value b according to the relationship between the extractor cotton seed material level matrix A and the extractor spindle speed matrix B; The setting of the working condition matrix of the mixed oil enrichment system includes: According to the real-time set extractor main shaft speed value b, the working matrix M of the mixed oil enrichment system is set; Presetting a first preset liquid level and a first preset time interval in the mixing oil tank; Acquire the liquid level data of the mixing oil tank collected by the second collection module, and determine whether the liquid level data of the mixing oil tank is greater than a first preset liquid level of the preset mixing oil tank; If the liquid level data of the mixed oil tank is greater than the first preset liquid level of the preset mixed oil tank, the second warning module sends an over-volume warning instruction to the central control module; The central control module sends a slag discharge instruction to the second sub-control module according to a preset first preset time interval, and the second sub-control module controls the sediment at the bottom of the mixing oil tank to be transferred to the upper material bed of the extractor.

2. The automatic control method for a cotton seed extraction plant according to claim 1, wherein: The process of setting the main shaft speed of the extractor according to the material level data includes: A matrix A of cotton seed material positions to be leached is preset, and A(A1, A2, A3, A4) is set, wherein A1 is the first preset cotton seed material position to be leached, A2 is the second cotton seed material position to be leached, A3 is the third preset cotton seed material position to be leached, and A4 is the fourth cotton seed material position to be leached, and A1<A2<A3<A4; Preset the extractor spindle speed matrix B, set B(B1, B2, B3, B4), set B1 as the first preset extractor spindle speed, B2 as the second extractor spindle speed, B3 as the third extractor spindle speed, B4 as the fourth extractor spindle speed, and B1 < B2 < B3 < B4; When a<A1, the real-time extractor main shaft speed value b is set to the first preset extractor main shaft speed B1, that is, b=B1; When A1<a<A2, the real-time extractor main shaft speed value b is set to the second preset extractor main shaft speed B2, that is, b=B2; When A2<a<A3, the real-time extractor main shaft speed value b is set to the third preset extractor main shaft speed B3, that is, b=B3; When A3<a<A4, the real-time extractor main shaft speed value b is set to the fourth preset extractor main shaft speed B4, that is, b=B4.

3. The automatic control method for a cotton seed extraction plant according to claim 2, wherein: The setting of the working condition matrix of the mixed oil enrichment system includes: Set a first preset working condition matrix M1 (m1, n1), a second preset working condition matrix M2 (m2, n2), a third preset working condition matrix M3 (m3, n3), and a fourth preset working condition matrix M4 (m4, n4), wherein m1 to m4 are the first to fourth preset mixing oil pumping speeds, and m1 < m2 < m3 < m4, and n1 to n4 are the first to fourth preset filter filtration speeds, and n1 < n2 < n3 < n4; When b=B1, the working matrix M of the mixed oil enrichment system is set to the first preset working condition matrix M1; When b=B2, the working matrix M of the mixed oil enrichment system is set to the second preset working condition matrix M2; When b=B3, the working matrix M of the mixed oil enrichment system is set to the third preset working condition matrix M3; When b=B4, the working matrix M of the mixed oil enrichment system is set to the fourth preset working condition matrix M4.

4. The automatic control method for a cotton seed extraction plant according to claim 1, wherein: The setting of the DTDC system operating parameters includes: The difference matrix C between the preset ambient temperature and the hot meal temperature is set as C(C1, C2, C3, C4), where C1 is the difference between the first preset ambient temperature and the hot meal temperature, C2 is the difference between the second preset ambient temperature and the hot meal temperature, C3 is the difference between the third preset ambient temperature and the hot meal temperature, and C4 is the difference between the fourth preset ambient temperature and the hot meal temperature, and C1<C2<C3<C4; A heating time matrix T of the preset air heater is set to T(T1, T2, T3, T4), where T1 is the first preset heating time, T2 is the second preset heating time, T3 is the third preset heating time, and T4 is the fourth preset heating time, and T1 < T2 < T3 < T4; Obtain the difference c between the real-time ambient temperature and the hot meal temperature, the relationship between the difference matrix C between the ambient temperature and the hot meal temperature and the heating time matrix T of the air heater, and set the real-time heating time t, which is specifically: When c<C1, the real-time heating time t is set to the first preset heating time T1; When C1<c<C2, the real-time heating time t is set to the second preset heating time T2; When C2<c<C3, the real-time heating time t is set to the third preset heating time T3; When C3<c<C4, the real-time heating time t is set to the fourth preset heating time T4.

5. The automatic control method for a cotton seed extraction plant according to claim 4, wherein: The setting of the DTDC system operating parameters further includes: The wet meal data processed by the extractor is obtained, and the working parameters of the pre-delayer, the desolventizing layer, the direct steam spraying layer and the comprehensive layer are set according to the wet meal data.

6. An automatic control system for a cotton seed extraction plant, using the automatic control method for a cotton seed extraction plant according to any one of claims 1 to 5, characterized in that: include: A central control module, the central control module is used to obtain data of cotton seeds to be leached and set working parameters of each sub-working system according to the data of cotton seeds to be leached; a first data acquisition module, disposed on the extractor hopper and wirelessly connected to the central control module, the first data acquisition module being used to collect material level data of the extractor hopper; a second data acquisition module, disposed in the mixing oil tank and wirelessly connected to the central control module, the second data acquisition module being used to collect liquid level data of the mixing oil tank; A third data acquisition module is provided on the degassing machine and is wirelessly connected to the central control module. The third data acquisition module is used to collect ambient temperature data and hot meal temperature data; The first sub-control module is used to set the main shaft speed of the extractor according to the material level data; The second sub-control module is used to set the working condition matrix of the mixed oil enrichment system; The third sub-control module is used to set the DTDC system operating parameters.

7. The automatic control system for the cotton seed extraction plant according to claim 6, characterized in that: The first sub-control module is further configured to: Preset the matrix of cotton seed material positions to be extracted and the matrix of main shaft speed of the extractor; Real-time cotton seed material level data of the extractor is obtained, and the real-time extractor main shaft speed value is set according to the relationship between the cotton seed material level matrix and the extractor main shaft speed matrix.

8. The automatic control system for the cotton seed extraction plant according to claim 6, characterized in that: Also includes: A second judgment module is used to obtain the mixed oil tank liquid level data collected by the second collection module, and to judge whether the mixed oil tank liquid level data is greater than a preset first preset liquid level of the mixed oil tank; a second early warning module, which sends an over-volume early warning instruction to the central control module when the liquid level data of the mixed oil tank is greater than a first preset liquid level of the preset mixed oil tank; The second sub-control module is used for: Set a first preset working condition matrix M1 (m1, n1), a second preset working condition matrix M2 (m2, n2), a third preset working condition matrix M3 (m3, n3), and a fourth preset working condition matrix M4 (m4, n4), wherein m1 to m4 are the first to fourth preset mixing oil pumping speeds, and m1 < m2 < m3 < m4, and n1 to n4 are the first to fourth preset filter filtration speeds, and n1 < n2 < n3 < n4; The second sub-control module is further configured to set the working matrix M of the mixed oil enrichment system according to the real-time extractor main shaft speed value set in real time; The second sub-control module is further used to control the transfer of sediment at the bottom of the mixing oil tank to the upper material bed of the extractor.

9. The automatic control system for a cotton seed extraction plant according to claim 6, wherein: Also includes: a third processing module; Used to obtain the ambient temperature data and hot meal temperature data collected by the third data acquisition module, and generate the difference between the real-time ambient temperature and the hot meal temperature; The third sub-control module is further configured to: A preset matrix of differences between ambient temperature and hot meal temperature and a preset matrix of heating time of air heater; Obtaining the difference between the real-time ambient temperature and the hot meal temperature generated by the third processing module, the relationship between the difference matrix between the ambient temperature and the hot meal temperature and the heating time matrix of the air heater, and setting the real-time heating time; The wet meal data processed by the extractor is obtained, and the working parameters of the pre-delayer, the desolventizing layer, the direct steam spraying layer and the comprehensive layer are set according to the wet meal data.

Images