Automatic water adding device in wheat milling process
阅读说明：本技术 一种小麦磨粉过程中的自动加水装置 (Automatic water adding device in wheat milling process ) 是由 保广城 郭杰 李翠霞 盛斯斯 于 2019-04-10 设计创作，主要内容包括：本申请提供一种小麦磨粉过程中的自动加水装置,包括搅拌仓、与搅拌仓连通的进料管和出料管、在搅拌仓内的搅拌装置、湿度传感器、面粉流速传感器、水流速传感器、控制装置、供水装置、比例阀、供气装置、连接供气装置和供水装置的气液混合装置、电磁阀和连气液混合装置且朝向搅拌仓内的喷嘴；湿度传感器和面粉流速传感器在进料管上,且它们的感应端朝向进料管的内部,供水装置和供气装置均连气液混合装置,供水装置和气液混合装置的连接管路上设比例阀和水流速传感器,气液混合装置和喷嘴的连接管路上设电磁阀,湿度传感器、面粉流速传感器和水流速传感器均连接控制装置,控制装置分别连接比例阀和电磁阀。本发明能保证加水均匀,生产效率高。(The application provides an automatic water adding device in a wheat flour milling process, which comprises a stirring bin, a feeding pipe and a discharging pipe which are communicated with the stirring bin, a stirring device, a humidity sensor, a flour flow velocity sensor, a water flow velocity sensor, a control device, a water supply device, a proportional valve, a gas supply device, a gas-liquid mixing device, a solenoid valve and a nozzle, wherein the gas-liquid mixing device is connected with the gas supply device and the water supply device and faces the stirring bin; the device comprises a feeding pipe, a humidity sensor, a flour flow velocity sensor, a water supply device, a gas supply device, a water supply device, a nozzle, a water supply device, a nozzle, a control device and a control device, wherein the humidity sensor and the flour flow velocity sensor are arranged on the feeding pipe, the sensing ends of the humidity sensor and the flour flow velocity sensor face the inside of the feeding pipe, the water supply device and the gas supply device are both connected with the gas-liquid mixing device, a proportional valve and a water flow velocity. The invention can ensure even water adding and high production efficiency.)
1. The utility model provides an automatic water installation that adds of wheat crocus in-process which characterized in that includes: the device comprises a stirring bin, a feeding pipe, a discharging pipe, a stirring device, an inlet flour humidity sensor, a flour flow velocity sensor, a water flow velocity sensor, a control device, a water supply device, a proportional valve, an air supply device for supplying compressed air, a gas-liquid mixing device, an electromagnetic valve and a nozzle;
inlet pipe and discharging pipe all with stirring storehouse intercommunication, agitating unit sets up in the stirring storehouse, import flour humidity transducer with flour velocity of flow sensor sets up on the inlet pipe, import flour humidity transducer's response end with flour velocity of flow sensor's response end all moves towards the inside of inlet pipe, water supply installation and air feeder all connect gas-liquid mixing device water supply installation with set up on gas-liquid mixing device's the connecting line proportional valve with water velocity of flow sensor, air feeder connects gas-liquid mixing device, gas-liquid mixing device connects the nozzle gas-liquid mixing device with set up on the connecting line of nozzle the solenoid valve, the nozzle sets up on the pipe wall in stirring storehouse, towards in the stirring storehouse, import flour humidity transducer's output, The output of the flour flow velocity sensor and the output of the water flow velocity sensor are both connected with the input of the control device, and the output of the control device is respectively connected with the proportional valve and the electromagnetic valve.
2. The automatic water adding device in the wheat milling process as claimed in claim 1, wherein the water flow rate sensor is an SM6000 electromagnetic flow rate meter.
3. The automatic water adding device in the wheat milling process as claimed in claim 1, comprising at least four said nozzles and at least two said electromagnetic valves, wherein at least four said nozzles are uniformly arranged in the horizontal direction of said stirring bin;
the gas-liquid mixing device is connected with each nozzle through a first connecting pipeline, and each first connecting pipeline is provided with one electromagnetic valve;
or the gas-liquid mixing device and every two nozzles are connected through a second connecting pipeline, the two nozzles connected to one second connecting pipeline are symmetrically arranged in the horizontal direction of the stirring bin, and one electromagnetic valve is arranged on each second connecting pipeline.
4. The automatic water adding device in the wheat milling process as claimed in claim 1, wherein a release solenoid valve is provided on a connection pipe between the air supply device and the air-liquid mixing device, and an output of the control device is connected to the release solenoid valve.
5. The automatic watering device for a wheat milling process of claim 1 further comprising an outlet flour humidity sensor;
export flour humidity transducer sets up on the discharging pipe, export flour humidity transducer's response end orientation the inside of discharging pipe, export flour humidity transducer's output connection controlling means's input.
6. The automatic water feeding device for wheat milling of claim 1, wherein a pressure gauge is provided on a connection pipe between the water supply device and the gas-liquid mixing device.
7. The automatic water feeding device in a wheat milling process as claimed in claim 1, wherein said water supply means comprises a water storage tank and a water pump;
the water storage tank is connected with a water inlet of the water pump, and a water outlet of the water pump is connected with the gas-liquid mixing device.
8. The automatic water feeder for wheat milling according to claim 1, wherein a gas pressure gauge is provided on a connection pipe between the gas supply means and the gas-liquid mixing means.
9. The automatic water adding device in the wheat milling process as claimed in claim 1, wherein the stirring device comprises a stirring motor and stirring blades, and a rotating shaft of the stirring motor is connected with the stirring blades.
10. The automatic water adding device in the wheat milling process as claimed in claim 1, wherein the water pump motor has a variable frequency speed control function.
Technical Field
The application relates to the technical field of machinery, especially, relate to an automatic water installation that adds of wheat crocus in-process.
Background
The technology and process for grinding wheat is well established in that before grinding wheat, a certain amount of water is added into wheat, and then grinding is started. However, in the production process of wheat flour milling, because the moisture loss caused by the heating of flour needs to be supplemented and added with a certain proportion of moisture according to the process requirements, the humidity (water content) of the flour is measured in a static mode in the industry at present, namely, the water adding amount is manually controlled, and the measurement mode has at least the following problems:
1. the water adding amount of the flour cannot be dynamically and continuously controlled, and the humidity of the flour is ensured;
2. the flour milling process needs dynamic adjustment of water adding amount according to flour with different formulas.
According to national standards, the maximum moisture of flour should be less than 15%. Therefore, it is important to control the amount of water added to the flour.
Disclosure of Invention
In order to solve the technical problem or at least partially solve the technical problem, the application provides an automatic water adding device in a wheat grinding process.
The application provides an automatic water installation that adds of wheat crocus in-process includes: the device comprises a stirring bin, a feeding pipe, a discharging pipe, a stirring device, an inlet flour humidity sensor, a flour flow velocity sensor, a water flow velocity sensor, a control device, a water supply device, a proportional valve, an air supply device for supplying compressed air, a gas-liquid mixing device, an electromagnetic valve and a nozzle;
inlet pipe and discharging pipe all with stirring storehouse intercommunication, agitating unit sets up in the stirring storehouse, import flour humidity transducer with flour velocity of flow sensor sets up on the inlet pipe, import flour humidity transducer's response end with flour velocity of flow sensor's response end all moves towards the inside of inlet pipe, water supply installation and air feeder all connect gas-liquid mixing device water supply installation with set up on gas-liquid mixing device's the connecting line proportional valve with water velocity of flow sensor, air feeder connects gas-liquid mixing device, gas-liquid mixing device connects the nozzle gas-liquid mixing device with set up on the connecting line of nozzle the solenoid valve, the nozzle sets up on the pipe wall in stirring storehouse, towards in the stirring storehouse, import flour humidity transducer's output, The output of the flour flow velocity sensor and the output of the water flow velocity sensor are both connected with the input of the control device, and the output of the control device is respectively connected with the proportional valve and the electromagnetic valve.
Preferably, the water flow rate sensor is an SM6000 electromagnetic flow rate meter.
Preferably, the stirring device comprises at least four nozzles and at least two electromagnetic valves, wherein the at least four nozzles are uniformly arranged in the horizontal direction of the stirring bin;
the gas-liquid mixing device is connected with each nozzle through a first connecting pipeline, and each first connecting pipeline is provided with one electromagnetic valve;
or the gas-liquid mixing device and every two nozzles are connected through a second connecting pipeline, the two nozzles connected to one second connecting pipeline are symmetrically arranged in the horizontal direction of the stirring bin, and one electromagnetic valve is arranged on each second connecting pipeline.
Preferably, a release solenoid valve is arranged on a connecting pipeline of the gas supply device and the gas-liquid mixing device, and the output of the control device is connected with the release solenoid valve.
Preferably, an outlet flour humidity sensor is further included;
export flour humidity transducer sets up on the discharging pipe, export flour humidity transducer's response end orientation the inside of discharging pipe, export flour humidity transducer's output connection controlling means's input.
Preferably, a pressure gauge is arranged on a connecting pipeline between the water supply device and the gas-liquid mixing device.
Preferably, the water supply device comprises a water storage tank and a water pump;
the water storage tank is connected with a water inlet of the water pump, and a water outlet of the water pump is connected with the gas-liquid mixing device.
Preferably, a gas pressure gauge is arranged on a connecting pipeline of the gas supply device and the gas-liquid mixing device.
Preferably, the stirring device comprises a stirring motor and stirring blades, and a rotating shaft of the stirring motor is connected with the stirring blades.
Preferably, the water pump motor has a variable frequency speed regulation function.
Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages:
the automatic water adding device in the wheat milling process is provided with the inlet flour humidity sensor on the feeding pipe, so that the humidity of the flour can be continuously measured, and the moisture in the flour can be measured under the dynamic condition of feeding.
Description of the drawings:
FIG. 1 is a schematic view of an automatic water adding device in a wheat milling process according to an embodiment of the present disclosure;
fig. 2 is a schematic structural view of a nozzle and a solenoid valve part of the automatic water adding device in the wheat milling process of fig. 1.
In the figure: stirring 1 flour velocity sensor 2 import flour humidity transducer 3 water storage tank 4 water pump 5
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Various embodiments and aspects of the inventions will be described with reference to details discussed below, and the accompanying drawings will illustrate the various embodiments. The following description and drawings are illustrative of the invention and are not to be construed as limiting the invention. Numerous specific details are described to provide a thorough understanding of various embodiments of the invention. However, in certain instances, well-known or conventional details are not described in order to provide a brief discussion of embodiments of the present invention.
Reference in the specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment.
In the description of the present invention, it is to be understood that the terms "vertical", "horizontal", "top", "bottom", "inner", "outer", "circumferential", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
The terminology used herein is for the purpose of describing particular examples only and is not intended to be limiting of examples. As used herein, the singular is also intended to include the plural unless the context clearly dictates otherwise.
The wheat milling process comprises a plurality of milling procedures, and in each milling procedure, the humidity of the milled flour needs to be stable so as to ensure the normal operation of the milling process. In addition, the grinding moisture of flour processing equipment generally needs to be kept within 15%, but in the flour making process, the moisture of the flour to be ground is greatly different due to the influence of factors such as process type, raw material variety, product moisture requirement, product quality and yield, water loss in the grinding process, climate, operation habits and the like.
In addition, in the production state, the higher the moisture content of the ground flour is, the better the precision and color of the product is, but the material flow property is poor, the moisture content of the product is increased, and the storage time is short. When the water content in the grinding exceeds a certain value, the production efficiency of the wheat deep processing equipment is reduced, and meanwhile, in the stable production process, when the production yield meets a certain requirement, the water content is related to the precision, ash content and the like of the flour. If the grinding water content is determined, the stability is ensured, and fluctuation is avoided, which is unfavorable for the production yield of wheat deep processing equipment and the quality of flour, therefore, the invention discloses an automatic water adding device in the wheat grinding process to accurately ensure the water adding amount in the flour.
As shown in fig. 1-2, an automatic water adding device in a wheat milling process is provided, which comprises: the device comprises a stirring bin 1, a
the
The water
As a preferred embodiment, the water flow rate sensor is an SM6000 electromagnetic flow rate meter.
As a preferred embodiment, the mixing device comprises at least four
when the cross section of the stirring bin 1 is circular, at least four
The gas-
or, in order to uniformly spray water, the gas-
As a preferred embodiment, a release solenoid valve is arranged on a connecting pipeline between the gas supply device and the gas-
The connection of the release solenoid valve on the pipeline and the connection of the control device and the release solenoid valve are all in the prior art.
As a preferred embodiment, an outlet flour moisture sensor 11;
export flour humidity transducer 11 sets up on the discharging pipe, export flour humidity transducer's response end orientation the inside of discharging pipe, export flour humidity transducer's output connection controlling means's input.
The outlet flour humidity sensor in the embodiment is used for detecting whether the humidity of the flour after water is added reaches the preset flour humidity.
The outlet flour humidity sensor adopts a microwave method to continuously measure the humidity of the flour.
The connection of the outlet flour humidity sensor 11 on the pipeline and the connection of the outlet flour humidity sensor and the control device both adopt the prior art.
As a preferred embodiment, a pressure gauge is provided on a connection pipe between the water supply device and the gas-
As a preferred embodiment, the water supply device comprises a water storage tank 4 and a water pump 5;
the water storage tank 4 is connected with a water inlet of the water pump 5, and a water outlet of the water pump 5 is connected with the gas-
As a preferred embodiment, a gas pressure gauge is provided on a connection pipe between the gas supply device and the gas-
As a preferred embodiment, the stirring device includes a stirring motor and stirring blades, and a rotating shaft of the stirring motor is connected with the stirring blades. The stirring fan blade can uniformly stir the flour and the atomized water.
The stirring motor can be arranged in the stirring bin through a mounting bracket and the like.
In one embodiment, the water tube has a diameter of 4 minutes and the
The flour flow velocity sensor can adopt an SFI microwave solid flow velocity flowmeter, the inlet flour humidity sensor and the outlet flour humidity sensor can be MS-A-210 microwave moisture measuring instruments, microwaves are continuously transmitted and reflected on A probe of A measured medium to form A propagation loop, and the moisture of the flour is determined by calculating the absorbed energy of microwave beams in the flour.
The working process of the automatic water adding device in the wheat milling process comprises the following steps:
starting a water supply device and an air supply device, and opening flour (a flour feed valve is arranged on a
the control device reads the flour humidity (the flour moisture percentage) of the inlet flour humidity sensor 3 and the flour flow rate of the flour flow rate sensor 2;
transmitting the data to a control device;
the control device judges whether the flour humidity is less than the preset flour humidity, if so, the flour humidity is judged to be less than the preset flour humidity
Calculating the flour flow rate of the control period T and the water flow rate of the control period T according to the data by the following formula; the control period is set to be 10 seconds, and (1) the calculation of the water content of the imported flour can be specifically set according to the requirement:
PEM＝VP*WM
wherein: VP represents the flour flow rate flowing through the flour control cycle (the known flour flow meter maximum flow rate (20 milliamp current) is 120 l/min during calibration, and the maximum flow rate in each control cycle is 20 l/T if the control cycle T is 10 seconds, so that the flour/T per flow rate in the T cycle can be known from the current of the flow meter).
WM is the humidity of the flour measured by an imported flour humidity sensor (the maximum humidity of a known flour hygrometer (20 milliamperes current) is 20 percent during calibration), and according to the current value, the humidity of the flour can be determined, and the moisture is increased per liter of the flour.
PEM: the water content of the flour (liter water/T) in the period is controlled.
(2) Calculating the water adding amount:
W_REQ＝W_SET-PEM
wherein, W _ SET: set flour moisture (litres water/T), PEM: measured flour moisture (litres water/T), W — REQ: the required amount of added water (litres water/T).
It is understood that, in the above formula, the control period T is 10 seconds, and can be specifically adjusted as required.
(3) Proportional valve opening control and calculation
According to the deviation E between the required water adding amount W _ REQ in the control period T and the actual water flow W _ SUP (calculated by multiplying the water flow rate measured by the water flow rate sensor by T), the opening D of the proportional valve in the control period is controlled by adopting the PI (proportional integral) principle, and the formula of the transfer function of the control system is as follows:
wherein:
t: control period
E: deviation, water addition amount W _ REQ of control period T-actual water flow rate W _ SUP measured by water flow rate sensor
D: signal value (opening degree) output to proportional valve
Kp: coefficient of proportionality
Ti: integral coefficient
From the formula, the opening degree of the proportional valve is proportional to the deviation, and the larger the deviation is, the larger the proportional coefficient is, the larger the opening degree of the proportional valve is.
In addition, the larger the proportional coefficient is, the more sensitive the system is, the smaller the integral coefficient is, the more obvious the integral effect is, and the integral control follows the accumulated change of the deviation and is used for eliminating the residual error phenomenon.
In order to ensure the uniformity of water addition, the control device automatically adjusts the opening quantity of the nozzles according to the flow rate of flour.
In order to prevent the air pressure of the compressed air from pushing back the water from the
In order to obtain better atomization effect, the water is added into the flour more uniformly, the air pressure is 1.0-1.5 kg/cm2 higher than the water pressure, and finer (about 30 microns) liquid drop spray can be obtained by increasing the air pressure or reducing the liquid pressure. The fine droplet spray generated by the
According to the automatic water adding device in the wheat milling process, the inlet flour humidity sensor 3 is arranged on the feeding
The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
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