CN111235325A - Automatic sugar boiling control system and method for sugar refinery - Google Patents
Automatic sugar boiling control system and method for sugar refinery Download PDFInfo
- Publication number
- CN111235325A CN111235325A CN202010229397.7A CN202010229397A CN111235325A CN 111235325 A CN111235325 A CN 111235325A CN 202010229397 A CN202010229397 A CN 202010229397A CN 111235325 A CN111235325 A CN 111235325A
- Authority
- CN
- China
- Prior art keywords
- pipe
- tank
- sugar
- syrup
- value
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 168
- 238000009835 boiling Methods 0.000 title claims abstract description 149
- 239000000463 material Substances 0.000 claims abstract description 162
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 126
- 239000007788 liquid Substances 0.000 claims abstract description 76
- 239000013078 crystal Substances 0.000 claims abstract description 66
- 238000005406 washing Methods 0.000 claims abstract description 45
- 239000000843 powder Substances 0.000 claims abstract description 41
- 238000003756 stirring Methods 0.000 claims abstract description 34
- 230000001105 regulatory effect Effects 0.000 claims abstract description 32
- 238000007599 discharging Methods 0.000 claims abstract description 24
- 230000003287 optical effect Effects 0.000 claims abstract description 17
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 15
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 230000007246 mechanism Effects 0.000 claims abstract description 4
- 239000006188 syrup Substances 0.000 claims description 137
- 235000020357 syrup Nutrition 0.000 claims description 137
- 230000008569 process Effects 0.000 claims description 122
- 238000002425 crystallisation Methods 0.000 claims description 28
- 230000008025 crystallization Effects 0.000 claims description 28
- 239000012452 mother liquor Substances 0.000 claims description 14
- 238000000605 extraction Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 230000008023 solidification Effects 0.000 claims description 6
- 238000007711 solidification Methods 0.000 claims description 6
- 238000001704 evaporation Methods 0.000 claims description 5
- 230000008020 evaporation Effects 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000007730 finishing process Methods 0.000 claims description 4
- 239000002699 waste material Substances 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 239000012141 concentrate Substances 0.000 claims description 3
- 238000007405 data analysis Methods 0.000 claims description 3
- 238000011049 filling Methods 0.000 claims description 3
- 230000009467 reduction Effects 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- 235000009508 confectionery Nutrition 0.000 claims description 2
- 239000006071 cream Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 229910021529 ammonia Inorganic materials 0.000 abstract description 5
- 238000005507 spraying Methods 0.000 abstract 1
- 238000005086 pumping Methods 0.000 description 7
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 6
- 229930006000 Sucrose Natural products 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 239000007921 spray Substances 0.000 description 4
- 239000005720 sucrose Substances 0.000 description 4
- 238000005429 filling process Methods 0.000 description 3
- 235000013379 molasses Nutrition 0.000 description 2
- 238000011897 real-time detection Methods 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 241000251131 Sphyrna Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C13—SUGAR INDUSTRY
- C13B—PRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
- C13B25/00—Evaporators or boiling pans specially adapted for sugar juices; Evaporating or boiling sugar juices
- C13B25/06—Evaporators or boiling pans specially adapted for sugar juices; Evaporating or boiling sugar juices combined with measuring instruments for effecting control of the process
-
- C—CHEMISTRY; METALLURGY
- C13—SUGAR INDUSTRY
- C13B—PRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
- C13B30/00—Crystallisation; Crystallising apparatus; Separating crystals from mother liquors ; Evaporating or boiling sugar juice
- C13B30/002—Evaporating or boiling sugar juice
-
- C—CHEMISTRY; METALLURGY
- C13—SUGAR INDUSTRY
- C13B—PRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
- C13B30/00—Crystallisation; Crystallising apparatus; Separating crystals from mother liquors ; Evaporating or boiling sugar juice
- C13B30/02—Crystallisation; Crystallising apparatus
- C13B30/022—Continuous processes, apparatus therefor
- C13B30/025—Continuous processes, apparatus therefor combined with measuring instruments for effecting control of the process
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention discloses an automatic sugar boiling control system and method for a sugar refinery, which comprises a sugar boiling tank and a crystal assisting box, wherein the sugar boiling tank is provided with a stirring device, a vacuumizing device and various functional valve pipes, the sugar boiling tank is also provided with various functional detectors, the various functional valve pipes comprise a feeding header pipe, a sugar releasing pipe, an emptying pipe, a washing tank steam pipe, a washing tank water pipe, an ammonia pipe, a powder feeding pipe, a steam pipe, a seed extracting pipe and a bottom discharging pipe, the sugar pulp pipe, a water pipe and a material pipe are connected in parallel with the feeding header pipe, the sugar releasing pipe is communicated with the crystal assisting box, and the feeding header pipe is provided with a feeding flow meter and a purity detector; the stirring device comprises a motor which drives a stirring paddle in the tank through a transmission mechanism; the vacuumizing device comprises a water pump for starting a sprayer, and a vacuum regulating valve is arranged on a spraying pipe for communicating the sprayer with the water tank; the various function detectors comprise an upper differential pressure liquid level meter, a lower differential pressure liquid level meter, a vacuum degree pressure meter, a material temperature meter, a steam drum pressure meter, a massecuite resistance viscometer and an optical hammermieter which are arranged on the tank body.
Description
Technical Field
The invention relates to the technology of sugar industry, in particular to an automatic sugar boiling control system and method for a sugar factory.
Background
Boiling and crystallization aid is a process of crystallization of sucrose. The sugar juice is concentrated into 65-75 degrees BX syrup through the evaporation process, in order to extract sucrose crystals from the syrup, the syrup must be continuously concentrated to a certain supersaturation degree to separate out sucrose, the crystals are gradually grown to the required granularity, the syrup is boiled into massecuite, and then the massecuite is discharged into a crystallization-aid device to be crystallized so as to extract the sucrose as much as possible.
A sugar boiling tank (also called a crystallizing tank) is an operating device for completing a sugar boiling unit, in which two processes of heat transfer and mass transfer are simultaneously performed, and in the sugar boiling process, the conditions of sugar boiling raw materials such as the purity, concentration and viscosity of syrup are constantly changed, and the conditions of sugar boiling such as the vacuum degree and the pressure of heating steam are also constantly fluctuated. The crystallization process is the post-stage of sugar refinery material treatment, and the quality of sugar boiling process control can influence the crystal size and uniformity of massecuite, can influence the crystallization speed and sugar loss, so will directly influence the recovery and quality of product, still can influence the emission of the quantity of steam and waste simultaneously.
In the sugar making process, the sugar boiling procedure is one of the most important processes in the sugar boiling process and is also an energy-consuming large user in the sugar making process. Whether the sugar boiling process can be reasonably controlled or not is an urgent requirement of each enterprise, so that the labor intensity of operators is reduced, the dependence on the operators is reduced, the sugar boiling time is reduced, the sugar screening rate is improved, and the energy consumption is reduced.
At present, the sugar boiling process is highly dependent on sugar boiling operators, and the requirements on the technical proficiency of the operators are high; however, because the application requirements cannot be expressed by the one-time measuring instrument (for example, the supersaturation degree of syrup in the sugar boiling process cannot be reflected, so that the supersaturation degree is not in the crystal growing range), the control software is incomplete, and the like, the automatic sugar boiling system cannot realize automatic control, only can realize opening and closing of a valve by a computer, and finally cannot solve the sugar boiling problem.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides an automatic sugar boiling control system and method for a sugar refinery.
The invention discloses an automatic sugar boiling control system for a sugar refinery, which adopts the technical scheme that the automatic sugar boiling control system comprises a sugar boiling tank and a crystallization assisting box, wherein the sugar boiling tank is provided with a stirring device, a vacuumizing device and various functional valve pipes, and is different from the sugar boiling tank which is also provided with various functional detectors, wherein:
1. the valve pipes with various functions comprise a feeding main pipe and a sugar discharging pipe which are arranged at the bottom of the sugar boiling tank and provided with valves, a syrup pipe, a water pipe and a material pipe with valves are connected with the feeding main pipe in parallel, the sugar discharging pipe is communicated with a crystallization assisting box, a crystallization assisting box liquid level meter is arranged on the crystallization assisting box, and a feeding flow meter and a purity detector are arranged on the feeding main pipe.
2. The valve pipes with various functions also comprise an emptying pipe with a valve, a tank washing steam pipe, a tank washing water pipe, an ammonia pipe, a powder feeding pipe, a steam pipe, a seed pumping pipe and a bottom discharge pipe which are arranged on the sugar boiling tank body.
3. The stirring device comprises a motor which drives the stirring paddle in the tank through a transmission mechanism.
4. The vacuum pumping device comprises a water pump for starting a sprayer, and a vacuum regulating valve is arranged on a pipeline for communicating the sprayer and the water pump.
5. The various function detectors comprise an upper differential pressure liquid level meter, a lower differential pressure liquid level meter, a vacuum degree pressure meter, a material thermometer, a steam drum pressure meter, a massecuite resistance viscometer and an optical hammermieter which are arranged on the sugar boiling tank body.
6. Each valve, each detector and each power component are connected with a PLC through signal lines, and the PLC is connected with a DCS on the PC through a network protocol or an MODBUS protocol.
In order to meet the technological requirements, the material pipe comprises a material pipe I, a material pipe II and a material pipe III which are connected in parallel.
The automatic sugar boiling control method adopting the automatic sugar boiling control system of the sugar factory has the operation mode comprising a vacuumizing process, a base material feeding process, a base material concentrating process, a powder feeding or seed extracting process, a crystal growing process, a crystal solidifying process, a crystal growing process, a massecuite finishing process, a massecuite concentrating process, a water boiling waiting process, a sugar discharging process and a washing and filling process which can realize modular control, wherein the sugar boiling waiting process, the sugar discharging process and the crystal growing process are sequentially carried out in a modular mode, and the sugar boiling automatic control method
1. A vacuumizing procedure: and starting the water pump and opening the vacuum regulating valve, detecting the vacuum pressure in the tank in real time by the vacuum degree pressure gauge, and adjusting the opening of the vacuum regulating valve or the rotating speed of the variable-frequency regulating water pump until the vacuum pressure value in the tank is in a set range.
2. A bottom material feeding process: the feeding main pipe, the syrup pipe and the material pipe I, or the material pipe II, or the material pipe III are opened, when the syrup and the materials flow through the feeding main pipe, the purity detector detects the purity of syrup in real time, the feeding flowmeter detects the flow value of syrup, the PLC and DCS system counts the total amount of syrup entering the tank in real time, the upper and lower differential pressure level meters jointly detect the liquid level of materials in the tank, the optical plummet meter detects the concentration value of syrup in the tank in real time, the massecuite resistance viscometer detects the viscosity value of syrup in the tank in real time, when the total amount and the liquid level value of the syrup in the tank meet the requirements, the motor is started to drive the stirring paddle to stir the materials in the tank, when the total amount of syrup and the liquid level value in the tank meet the requirements, the steam pipe is opened, the steam drum temperature and pressure values are detected by the steam drum thermometer and the steam drum pressure gauge in real time, and the opening of the steam pipe and the ammonia pipe is adjusted according to the temperature value and the pressure value of the steam drum, and the steam drum starts to heat the syrup after steam enters.
3. A bottom material concentrating procedure: and when the total amount of syrup and the liquid level value in the tank reach set values, the steam pipe is opened, the stirring paddle operates to concentrate the bottom materials, the water pump is closed or the vacuum regulating valve is opened, the vacuum is reduced to 400mbar or the temperature of the bottom materials is increased to about 80 ℃, the water pump is restarted or the vacuum regulating valve is opened, and the bottom materials are concentrated when the hammer degree value of the bottom materials reaches the powder feeding hammer degree.
4. Powder feeding or seed extraction: when syrup in the tank is concentrated until each parameter reaches a set value range, the powder feeding pipe is opened or the seed extracting pipe is opened, powder or seed materials enter the tank, the stirring paddle stirs the materials to uniformly mix the powder or the seed materials, when the set time is reached, the powder feeding pipe or the seed extracting pipe is closed to finish the powder feeding or seed extracting process, if the sugar is boiled in a powder feeding mode, the crystallization process is carried out, and if the sugar is boiled in a seed extracting mode, the crystal growing process is carried out.
5. A crystallization process: after powder feeding, the system converts the current syrup supersaturation degree according to the measured syrup concentration, the syrup viscosity, the syrup purity, the syrup temperature, the syrup liquid level, crystallizer volume and vapor pressure parameter, heat conversion efficiency and evaporation efficiency, the system adjusts the opening degree of a steam pipe and a vacuum regulating valve or the rotating speed of a water pump, the steam drum temperature, the material temperature and the vacuum pressure in the tank are in the set value range of the syrup concentration process, the syrup supersaturation degree in the tank is reasonably controlled in the set curve range, the syrup in the tank is reasonably crystallized, the crystal growing process is completed in the set time, and the system enters the crystal solidification step.
6. A crystal fixing procedure: the system calculates the pre-entry speed by using first-order lead-lag and starts the water pipe, detects the entry flow value through the entry flowmeter, enables the entry flow value to be within the pre-entry speed range, adjusts the opening of the water pipe in real time according to the detected detection values, and closes the water pipe after the syrup brix meets the current crystal fixing procedure requirement and the crystal fixing process is completed within set time.
7. Crystal growing procedure: after the crystal solidification process is completed, the system calculates the pre-feeding speed by utilizing first-order lead lag, the opening degree of a feeding main pipe and a syrup pipe is adjusted, so that the flow value and the supersaturation value of syrup and material are in the flow range of the pre-feeding, when other materials need to be cooked back in the whole process, the syrup pipe or the current material pipe is closed, the corresponding material pipe to be cooked back is opened, the system adjusts the opening degree of each valve according to the parameters of the material hammer value, the syrup viscosity value, the syrup and material purity value, the material temperature, the steam drum temperature and the like in the tank, then the actual feeding speed is controlled by performing fitting mixing operation according to the syrup concentration and the feeding flow, finally the syrup supersaturation degree is suitable for crystal growth when crystal growth is maintained, the system counts the total amount of syrup and material entering the tank through a feeding flow meter, detects the liquid level of the material in the tank in real time through an, through optics brigtometer real-time detection syrup mother liquor brix value, through massecuite resistance viscosimeter real-time detection syrup viscosity number, carry out data analysis according to liquid level, syrup mother liquor concentration value, syrup viscosity number and the interior material total amount of jar in, judge whether need get into massecuite arrangement process.
8. And (3) massecuite finishing procedure: the system converts and arranges the estimated water consumption according to the set parameters and the measured parameters of syrup concentration, syrup viscosity, syrup purity, syrup temperature, material liquid level, crystallization tank volume and steam pressure, closes a syrup pipe and a material pipe I, or a material pipe II, or a material pipe III, opens a water pipe, opens a feeding main pipe by 100 percent, detects the total amount of water entering the tank through a feeding flowmeter, judges whether to close the water pipe and the feeding main pipe according to the syrup brix feedback of an optical brix meter, closes a water pump or opens a vacuum regulating valve, reduces the vacuum to 400mbar or about 80 ℃ when the temperature of a bottom material is increased, restarts the water pump or opens the vacuum regulating valve, carries out water inlet according to the syrup mother liquid brix in the vacuum lifting process to keep the supersaturation degree, uniformly mixes the water with the materials in the tank under the action of a stirring paddle, and carries out dissolution arrangement on white sugar crystals and waste sand with undersize volume in the arrangement set time and the vacuum reduction and vacuum lifting period, and finishing the finishing of the massecuite when finishing timing overflows or the vacuum and tank temperature returns to normal.
9. And a massecuite concentrating procedure: the system adjusts the opening degree of a steam pipe and a vacuum regulating valve or the rotating speed of a water pump to enable the steam drum temperature, the material temperature and the vacuum pressure in the tank to be within the set range of the concentration value of the massecuite, in the process of concentrating the massecuite, the system calculates the proportion of the mother liquid of the material and the crystal in the tank according to the concentration value of the mother liquid of the material in the tank and the viscosity value of the material in the tank, and the system enters a sugar discharging process or a water boiling waiting process when the proportion of the mother liquid to the crystal reaches the set value.
10. A sugar releasing procedure: when the sugar mass liquid level value is lower than the set sugar liquid level, the system control stirring paddle stops running, the steam pipe is closed, the vacuum regulating valve is closed or the water pump is stopped, the feeding main valve is closed, the emptying pipe is opened, the sugar emptying pipe is opened after the vacuum recovers the standard atmospheric pressure, the sugar mass in the tank flows into the sugar mass box through the sugar emptying pipe, the system detects the sugar mass liquid level in the tank in real time through the upper and lower differential level meters, and the sugar emptying process is completed when the sugar mass liquid level value in the tank is lower than the set value.
11. A water boiling waiting process: when a liquid level meter in a crystal assisting box detects a liquid level value in the crystal assisting box or no object can be boiled in the previous stage of sugar discharging, the system enters a water boiling waiting process, the system controls to open or close a water pipe according to the measured syrup concentration, detects a water inlet flow value through a material inlet flowmeter, adjusts the opening degree of a steam pipe and a vacuum regulating valve or the rotating speed of a water pump by regulating the opening degree of a material inlet main pipe, timely regulates the opening degree of the water pipe according to detected detection values in real time, enables the hammer degree of the entering mother liquor to be suitable for the requirements of the current water boiling waiting process, and exits the water boiling waiting process when the liquid level value in the crystal assisting box or the object can be boiled in the previous stage of sugar discharging.
12. Washing and filling: after the sugar cream in the tank is completely discharged into the crystallization assisting box, the system opens the bottom discharge pipe and the tank washing water pipe, the hot water is used for washing the space in the tank within the set washing time, the tank washing water pipe is closed after the hot water washing of the tank is finished, the tank washing steam pipe is opened again, the steam is used for washing the space in the tank within the set washing time until the set time is reached, the tank washing steam pipe is closed, the sugar boiling tank is kept still for a certain time, all valves are closed, the whole automatic sugar boiling process is finished, and the system waits for the next sugar boiling process.
The invention has the beneficial effects that:
the automatic sugar boiling control system and the automatic sugar boiling control method for the sugar refinery realize the automatic control of a vacuumizing process, a base material feeding process, a base material concentrating process, a powder feeding process, a crystal forming process, a crystal fixing process, a crystal growing process, a massecuite finishing process, a massecuite concentrating process, a water boiling waiting process, a sugar discharging process and a washing and filling process of a sugar boiling process through modular control; after the automatic control of the sugar boiling process is started, only a base material entering process is started and the operation is confirmed, and the control program executes each process step according to the set sugar boiling parameters and the sugar boiling process until the last process.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
And (3) identifying the figure number: 1. a differential pressure liquid level gauge; 2. arranging bottom pipes; 3. seed pumping; 4. a steam pipe; 5. a powder feeding pipe; 6. an ammonia pipe; 7. a differential pressure above liquid level gauge; 8. a tank washing water pipe; 9. washing a tank steam pipe; 10. an emptying pipe; 11. a sugar boiling pot; 12. a motor; 13; a sprayer; 14. a vacuum degree pressure gauge; 15. a material thermometer; 16. a vacuum regulating valve; 17. a steam drum thermometer; 18. a drum pressure gauge; 19. a feeding main pipe; 20. a water pump; 21. a feeding flow meter; 22. a purity detector; 23. a material pipe III; 24. a material pipe II; 25. a material pipe I; 26. a water pipe; 27. a syrup tube; 28. massecuite resistance viscometer; 29. a crystal-assisting box liquid level meter; 30. a crystallization assisting box; 31. an optical plummet; 32. a sugar releasing pipe; 33. a vacuum tube; 34. a shower pipe; 35. a water tank.
Detailed Description
The technical solution of the present invention will be further explained with reference to the embodiments shown in the drawings.
The automatic sugar boiling control system for the sugar refinery comprises a sugar boiling tank 11 and a crystallization assisting box 30 arranged below the sugar boiling tank 11, wherein the sugar boiling tank 11 is provided with a stirring device, a vacuumizing device, various functional valve pipes and various functional detectors.
The valve pipes with various functions comprise a feeding header pipe 19, a sugar discharging pipe 32, a bottom discharging pipe 2, a seed pumping pipe 3, a steam pipe 4, a powder feeding pipe 5, an ammonia gas pipe 6, a tank washing water pipe 8, a tank washing steam pipe 9 and an emptying pipe 10, and valves which can be controlled by signals are arranged on the pipe bodies of the pipes; the sugar discharging pipe 32 is arranged at the bottom of the sugar boiling tank 11 and is downwards communicated with the crystallization assisting box 30, the crystallization assisting box 30 is provided with a crystallization assisting box liquid level meter 29, the discharge hole of the feeding main pipe 19 is communicated beside the bottom side of the sugar boiling tank 11, the feeding main pipe 19 is provided with a feeding flow meter 21 and a purity detector 22, the feeding hole of the feeding main pipe 19 is connected with a syrup pipe 27, a water pipe 26, a material pipe I25, a material pipe II 24 and a material pipe III 23 in parallel, and a valve capable of being controlled by signals is arranged on the pipe body of each pipe; the bottom discharge pipe 2 is communicated with the bottom of the sugar boiling tank 11, the powder feeding pipe 5, the steam pipe 4 and the seed pumping pipe 3 are communicated with the lower part of the sugar boiling tank 11 according to the upper, middle and lower positions, the ammonia pipe 6 is communicated with the middle part of the sugar boiling tank 11, the emptying pipe 10, the steam washing tank pipe 9 and the water washing tank pipe 8 are communicated with the upper part of the sugar boiling tank 11 according to the upper, middle and lower positions, and valves which can be controlled by signals are arranged on the pipe bodies of the pipes, as shown in fig. 1.
The stirring device comprises a stirring shaft coaxially arranged in the sugar boiling tank 11, the lower end of the stirring shaft is provided with a stirring paddle, and the upper end of the stirring shaft extends out of the tank opening and is connected with a motor 12 (power component) through a belt pulley transmission mechanism, as shown in figure 1.
The vacuum pumping device comprises a water pump 20 (power component) which connects a sprayer 13 and a water tank 35, the sprayer 13 is communicated with the upper part of the sugar boiling tank 11 through a vacuum pipe 33 and communicated with the water tank 35 through a spray pipe 34, the spray pipe 34 is provided with a vacuum regulating valve 16, the sprayer 13 strongly sprays water through the spray pipe 34 and adsorbs air in the sugar boiling tank 11 through the vacuum pipe 33, as shown in figure 1.
The various function detectors include an upper pressure difference liquid level meter 7 which is higher than the ammonia gas pipe 6 and is arranged in the middle of the sugar boiling tank 11, a lower pressure difference liquid level meter 1 which is lower than the seed extraction pipe 3 and is arranged at the lower part of the sugar boiling tank 11, a vacuum degree pressure meter 14 which is arranged in the middle of the sugar boiling tank 11 opposite to the upper pressure difference liquid level meter 7, a material thermometer 15 (lower than the ammonia gas pipe 6) which is arranged in the middle of the sugar boiling tank 11 below the vacuum degree pressure meter 14, a steam drum thermometer 17 and a steam drum pressure meter 18 which are arranged at the upper and lower positions at the lower part of the sugar boiling tank 11, a massecuite resistance viscometer 28 and an optical plummet 31 which are arranged at the.
The valves, the detectors and the corresponding power parts are connected with a control cabinet PLC through signal lines, and the control cabinet PLC is connected with a DCS system on the central control PC through a network protocol or an MODBUS protocol.
After the sugar boiling automatic control system of the sugar refinery is electrified, the PLC of the control cabinet continuously receives detection signals in real time and displays the detection signals on the DCS, and when the sugar boiling tank 11 is not in a sugar boiling state, all the valves are in a closed state; the sugar boiling process can realize modular control and comprises a vacuumizing process, a bottom material feeding process, a bottom material concentrating process, a powder feeding process, a crystal growing process, a crystal fixing process, a crystal growing process, a massecuite finishing process, a massecuite concentrating process, a water boiling waiting process, a sugar discharging process and a washing and filling process; after the sugar is automatically boiled by one-key operation, the control module automatically links the working procedures:
first, vacuum-pumping procedure
After the DCS system presses the automatic operation key, the water pump 20 is started (high-pressure water is supplied to the sprayer 13), the vacuum regulating valve 16 is opened, meanwhile, the vacuum degree pressure gauge 14 continuously detects the vacuum pressure condition in the sugar boiling tank 11 in real time, compares the vacuum pressure condition with a set value of the vacuum pressure and correspondingly calculates, and adjusts the opening degree of the vacuum regulating valve 16 or adjusts the rotating speed of the water pump 20 in a variable frequency mode until the vacuum pressure value in the sugar boiling tank 11 is within the set range.
Second, a bottom material feeding step
After the vacuum pressure value in the sugar boiling tank 11 is adjusted to be within a set range, a feeding main pipe 19, a syrup pipe 27 and a material pipe I25, or a material pipe II 24, or a material pipe III 23 are opened, syrup and materials enter the sugar boiling tank 11 through pipelines under the action of negative pressure in the sugar boiling tank 11, when the syrup and the materials flow through the feeding main pipe 19, a purity detector 22 detects the purity of the syrup in real time, a feeding flowmeter 21 detects the flow value of the syrup in real time, a PLC (programmable logic controller) and DCS (distributed control system) system counts the total amount of the syrup entering the sugar boiling tank 11 in real time and displays the total amount of the syrup, an upper differential pressure liquid level gauge 7 and a lower differential pressure liquid level gauge 1 jointly detect the liquid level condition of the materials in the sugar boiling tank 11, an optical plummet meter 31 detects the concentration value of the syrup in the sugar boiling tank 11 in real time, a massecuite resistance viscometer 28 detects the viscosity value of the syrup in the sugar boiling tank 11 in real time, when the total amount of the syrup, when the total amount of syrup and the liquid level value of materials in the sugar boiling tank 11 reach set values, the sugar boiling enters a bottom material concentrating process.
Thirdly, concentrating the bottom material
When the total amount of syrup and the liquid level value in the sugar boiling tank 11 reach set values, the system controls the steam pipe 4 to be opened, the stirring paddle keeps running to concentrate the bottom materials, meanwhile, the water pump 20 is closed or the vacuum adjusting valve 16 is opened, the vacuum is reduced to 400mbar or the temperature of the bottom materials is increased to about 80 ℃, the water pump 20 is restarted or the vacuum adjusting valve 16 is opened, when the hammer degree of the bottom materials reaches the hammer degree of powder feeding, the concentration of the bottom materials is completed, and the powder feeding process is carried out.
Fourth, powder feeding or seed extraction
In the sugar boiling process, crystal grains are added to materials in a sugar boiling tank 11 by a powder feeding mode in part of sugar factories, and bottom materials are added in a seed extracting mode in part of the sugar factories, when syrup in the sugar boiling tank 11 is concentrated to the extent that each parameter is within a set value range, a powder feeding pipe 5 is opened (during sugar boiling in the powder feeding mode) or a seed extracting pipe 3 is opened (during sugar boiling in the seed extracting mode), powder or seeds enter the sugar boiling tank 11, a stirring paddle is used for stirring the materials in the sugar boiling tank 11 all the time, the powder or the seeds are uniformly mixed with the materials, when the set time is reached, the powder feeding pipe 5 or the seed extracting pipe 3 is closed, the powder feeding or seed extracting process is completed, if the sugar is boiled in the powder feeding mode, the system enters a crystal starting process, and if the sugar is boiled in the seed extracting mode, the system enters a crystal growing process.
Fifthly, a crystal growing procedure
After powder feeding is finished, an upper differential pressure liquid level meter 7 and a lower differential pressure liquid level meter 1 detect the liquid level of materials in a sugar boiling tank 11, an optical plummet 31 detects the concentration value of mother liquor of the materials in the sugar boiling tank 11 on line in real time, a massecuite resistance viscometer 28 detects the viscosity value of the materials in the sugar boiling tank 11 on line in real time, a system converts the current supersaturation degree, heat conversion efficiency and evaporation efficiency of syrup according to the measured parameters such as the syrup concentration, the syrup viscosity, the syrup purity, the syrup temperature, the syrup liquid level, the volume of a crystallizing tank, the steam pressure and the like, adjusts the opening degrees of a steam pipe 4 and a vacuum adjusting valve 16 or the rotating speed of a water pump 20 to ensure that the steam drum temperature, the material temperature and the vacuum pressure in the sugar boiling tank 11 are in the set value range of a massecuite concentration process, the supersaturation degree in the sugar boiling tank 11 is reasonably controlled in the set curve range, the syrup in the sugar boiling tank, and after the crystal growing process is completed within the set time, the system enters a crystal solidification process.
Sixthly, die bonding process
After powder feeding is finished, an optical plummet 31 detects a concentration value of a mother liquor of a material in a sugar boiling tank 11 on line in real time, a massecuite resistance viscometer 28 detects a viscosity value of the material in the sugar boiling tank 11 on line in real time, the system converts the current supersaturation degree of syrup, heat conversion efficiency and evaporation efficiency according to measured parameters such as syrup concentration, syrup viscosity, syrup purity, syrup temperature and the like, calculates the pre-entry water speed by utilizing first-order lead-lag and opens a water pipe 26, detects the entry water flow value through a feed flowmeter 21, enables the entry water flow value to be within the pre-entry water speed range, timely adjusts the opening degree of the water pipe 26 according to detected detection values in real time, enables the syrup brix to meet the requirements of the current crystal fixing process, completes the crystal fixing process within set time, shuts down the water pipe 26, and enters the crystal growing.
Seventhly, crystal growing procedure
The crystal solidification step is completed, each detector is linked with each valve in real time, an optical plumometer 31 detects the hammerhead value of the mother liquid of the material in the sugar boiling tank 11 in real time, a massecuite resistance viscometer 28 detects the viscosity value of the syrup in the sugar boiling tank 11 in real time, the system calculates the pre-feeding speed by utilizing first-order lead lag, the opening degree of a feeding main pipe 19 and a syrup pipe 27 is adjusted, the flow value and the supersaturation value of the syrup and the material flow value are in the flow range of the pre-feeding, when other materials (such as the molasses after sugar screening, the molasses after tank washing and the like) need to be boiled back in the whole process, the current syrup pipe 27 and the current material pipe are closed, the corresponding material boiling back pipe is opened, a purity detector 22 detects the purity of the material in real time, a feeding flow meter 21 detects the flow value of the added material in real time, a PLC and a DCS system counts and displays the total amount of the syrup entering the sugar boiling tank 11 in, Adjusting the opening of each valve, performing fitting mixing operation according to the concentration of the syrup and the flow of the fed material to control the actual feeding speed, finally realizing that the supersaturation degree of the syrup is suitable for growing the crystals when the crystals are grown, enabling each parameter of the material in the sugar boiling tank 11 to be in the state of growing the crystals, counting the total amount of the syrup and the material in the sugar boiling tank 11 by the system through a feeding flowmeter 21, detecting the liquid level of the material in the sugar boiling tank 11 in real time through a lower pressure difference liquid level meter 1 and an upper pressure difference liquid level meter 7, performing mixing operation to obtain the cubic number of the actual material, detecting the hammer value of the syrup mother liquor in real time through an optical plumometer 31, detecting the viscosity value of the syrup in real time through a candy resistance viscometer 28, performing data analysis according to the liquid level in the sugar boiling tank 11, the syrup mother liquor, the viscosity value of the syrup and the total amount of the material in, and judging whether a massecuite finishing procedure needs to be carried out or not, and finally realizing automatic crystal growing without manual intervention in the crystal growing process.
Eighthly, massecuite finishing procedure
Each detector is linked with each valve in real time, the system converts and arranges the estimated water consumption according to the set parameters and the measured parameters such as syrup concentration, syrup viscosity, syrup purity, syrup temperature, material liquid level, crystallizer volume, steam pressure and the like, then the system closes a syrup pipe 27 and a material pipe I25, a material valve II 24 or a material valve III 23, opens a water pipe 26 and 100 percent of a feeding main pipe 19, detects the total amount of water entering a sugar boiling tank 11 through a feeding flowmeter 21, judges whether to close the water pipe 26 and the feeding main pipe 19 or not according to the syrup brix feedback of an optical brix meter 31, simultaneously closes a water pump 20 or opens a vacuum regulating valve 16, reduces the vacuum to 400mbar or waits for the temperature of bottom materials to rise to about 80 ℃, restarts the water pump 20 or opens the vacuum regulating valve 16, and keeps the supersaturation degree of water entering according to the syrup mother liquid brix in the vacuum lifting process; stirring the water by a stirring paddle, uniformly mixing the water with the materials in the sugar boiling tank 11, and dissolving and finishing the white sugar crystals and the waste sand with undersize volume within the set finishing time and the vacuum reduction and vacuum extraction period; and finishing the finishing of the massecuite when finishing timing overflows or the temperature of the vacuum tank returns to normal.
Jiuzhi massecuite concentrating process
The related valve and the power part are linked, and the steam pressure is kept in a set range to evaporate and absorb water; an optical hammeter 31 detects a concentration value of a material mother liquor in a sugar boiling tank 11 on line in real time, a massecuite resistance viscometer 28 detects a viscosity value of the material in the sugar boiling tank 11 on line in real time, and according to the concentration value of the mother liquor and the viscosity value of the material, a system adjusts the opening degrees of a steam pipe 4 and a vacuum regulating valve 16 or the rotating speed of a water pump 20 to enable the steam drum temperature, the material temperature and the vacuum pressure in the tank to be within a set value range of a massecuite concentration process so as to enable massecuite to be reasonably concentrated, and in the massecuite concentration process, the system calculates and calculates the proportion of the mother liquor and crystals of the material in the sugar boiling tank 11 according to the concentration value of the material mother liquor in the sugar boiling tank 11 and the viscosity value of the material in the sugar boiling tank 11, and enters a sugar discharging.
Ten, sugar releasing process
When the sugar mass liquid level value in the crystallization assisting box 30 is lower than the set sugar discharging liquid level, the system stops the stirring device, the steam pipe 4 is closed, the vacuum regulating valve 16 is closed or the water pump 20 is closed, the feeding header pipe 19 is closed, the emptying pipe 10 is opened, the sugar discharging pipe 32 is opened after the vacuum returns to the standard atmospheric pressure, the sugar mass in the sugar boiling tank 11 flows into the crystallization assisting box 30 through the sugar discharging pipe 32, the system detects the sugar mass liquid level in the sugar boiling tank 11 in real time through the upper and lower differential pressure level meters 7 and 1, and the sugar discharging process is completed when the sugar mass liquid level value in the sugar boiling tank 11 is lower than the set value.
Eleven, water boiling waiting process
When the liquid level meter 29 of the crystallization assisting box detects the liquid level value in the crystallization assisting box 30 or no matter can be boiled in the previous stage of sugar discharging, the system enters a water boiling waiting process (when bottom materials are fed and crystal growing has no materials, the system also starts the water boiling waiting process), the system controls to open or close the water pipe 26 according to the measured syrup concentration, detects the water inlet flow value through the feed material flowmeter 21, adjusts the opening degree of the steam pipe 4 and the vacuum regulating valve 16 or the rotating speed of the water pump 20 through adjusting the opening degree of the feed material header pipe 19, and timely adjusts the opening degree of the water pipe 26 according to each detected value in real time, so that the hammered degree of the mother liquid is suitable for the current water boiling waiting process, and when the liquid level value in the crystallization assisting box 30 or no matter can be boiled in the previous stage of sugar discharging, the system exits the water boiling waiting.
Twelve washing and irrigating procedures
After massecuite in the sugar boiling tank 11 is completely discharged into the crystallization assisting box 30, the system opens the bottom discharge pipe 2 and the tank washing water pipe 8, the space in the sugar boiling tank 11 is washed by hot water within set washing time, the tank washing water pipe 8 is closed after the hot water washing is finished, the tank washing steam pipe 9 is opened again, the space in the tank is washed by steam within set washing time until the set time is reached, the tank washing steam pipe 9 is closed, all valves are closed after the sugar boiling tank 11 is kept still for a certain time, the whole automatic sugar boiling process is finished, and the system waits for next sugar boiling and then operates the processes again.
Claims (3)
1. Sugar factory boils sugared automatic control system, including boiling sugar jar (11) and crystallization-assisting case (30), boiling sugar jar (11) are disposed agitating unit, evacuating device and various function valve pipe, its characterized in that boiling sugar jar (11) still are disposed various function detector, wherein:
the valve pipes with various functions comprise a feeding main pipe (19) and a sugar discharging pipe (32) which are arranged at the bottom of the sugar boiling tank (11) and provided with valves, a syrup pipe (27), a water pipe (26) and a material pipe which are provided with valves are connected in parallel and led into the feeding main pipe (19), the sugar discharging pipe (32) is communicated with a crystallization-assistant box (30), a crystallization-assistant box liquid level meter (29) is arranged on the crystallization-assistant box, and a feeding flow meter (21) and a purity detector (22) are arranged on the feeding main pipe (19);
the valve pipes with various functions also comprise an emptying pipe (10) with a valve, a tank washing steam pipe (9), a tank washing water pipe (8), an ammonia gas pipe (6), a powder feeding pipe (5), a steam pipe (4), a seed extracting pipe (3) and a bottom discharging pipe (2) which are arranged on the sugar boiling tank (11);
the stirring device comprises a motor (12) which drives a stirring paddle in the tank through a transmission mechanism;
the vacuumizing device comprises a water pump (20) for starting a sprayer (13), and a vacuum regulating valve (16) is arranged on a pipeline for communicating the sprayer (13) and the water pump (20);
the various function detectors comprise an upper differential pressure liquid level meter (7) and a lower differential pressure liquid level meter (1) which are arranged on the sugar boiling tank (11), a vacuum degree pressure gauge (14), a material thermometer (15), a steam drum thermometer (17), a steam drum pressure gauge (18), a massecuite resistance viscometer (28) and an optical hammeter (31);
each valve, each detector and each power component are connected with a PLC through signal lines, and the PLC is connected with a DCS on the PC through a network protocol or an MODBUS protocol.
2. The sugar refinery sugar boiling automatic control system according to claim 1, characterized in that: the material pipe comprises a material pipe I (25), a material pipe II (24) and a material pipe III (23) which are connected in parallel.
3. The automatic control method for sugar boiling in the sugar refinery is characterized in that the automatic control system for sugar boiling in the sugar refinery according to claim 2 is adopted, and the operation procedures comprise a vacuumizing procedure, a base material feeding procedure, a base material concentrating procedure, a powder feeding or seed extracting procedure, a crystal growing procedure, a crystal fixing procedure, a crystal growing procedure, a sugar paste finishing procedure, a sugar paste concentrating procedure, a water boiling waiting procedure, a sugar discharging procedure and a washing and filling procedure which can realize modular control, wherein the sugar refinery comprises the following steps of
(1) And a vacuumizing procedure: starting the water pump (20) and opening the vacuum regulating valve (16), detecting the vacuum pressure in the tank in real time by the vacuum degree pressure gauge (14), and adjusting the opening degree of the vacuum regulating valve (16) or the rotating speed of the water pump (20) in a variable frequency manner until the vacuum pressure value in the tank is in a set range;
(2) and a base material feeding process: opening a feeding main pipe (19), a syrup pipe (27), a material pipe I (25), a material pipe II (24) or a material pipe III (23), when syrup and materials flow through the feeding main pipe (19), a purity detector (22) detects the purity of the syrup in real time, a feeding flow meter (21) detects the flow value of the syrup, a PLC (programmable logic controller) and a DCS (distributed control system) perform real-time statistics on the total amount of the syrup entering a tank, an upper differential pressure liquid level meter (7) and a lower differential pressure liquid level meter (1) jointly detect the liquid level of the materials in the tank, an optical plummet meter (31) detects the concentration value of the syrup in the tank in real time, a candy resistance viscometer (28) detects the viscosity value of the syrup in the tank in real time, when the total amount of the syrup and the liquid level value in the tank meet requirements, a motor (12) is started to drive a stirring paddle to stir the materials in the tank, when the total amount of the syrup and the liquid, opening degrees of a steam pipe (4) and an ammonia gas pipe (6) are adjusted according to a temperature value and a pressure value of a steam drum, and the steam drum starts to heat the syrup after steam enters;
(3) and a bottom material concentrating process: when the total amount of syrup and the liquid level value in the tank reach set values, the steam pipe (4) is started, the stirring paddle is started to concentrate the bottom materials, the water pump (20) is closed or the vacuum regulating valve (16) is opened, the vacuum is reduced to 400mbar or when the temperature of the bottom materials is increased to about 80 ℃, the water pump (20) is restarted or the vacuum regulating valve (16) is opened again, and the bottom materials are concentrated when the hammer degree of the bottom materials reaches the powder throwing hammer degree;
(4) and powder feeding or seed extraction working procedures: when syrup in the tank is concentrated until each parameter reaches a set value range, the powder feeding pipe (5) is opened or the seed extracting pipe (3) is opened, powder or seed material enters the tank, the stirring paddle stirs the material to uniformly mix the powder or seed material, when the set time is reached, the powder feeding pipe (5) or the seed extracting pipe (3) is closed to finish the powder feeding or seed extracting process, if the powder feeding mode is used for boiling sugar, the crystallization process is carried out, and if the seed extracting mode is used for boiling sugar, the crystal growing process is carried out;
(5) and a crystallization process: after powder feeding is finished, the system converts the current syrup supersaturation degree, heat conversion efficiency and evaporation efficiency according to the measured parameters of syrup concentration, syrup viscosity, syrup purity, syrup temperature, syrup liquid level, crystallization tank volume and steam pressure, adjusts the opening of a steam pipe (4) and a vacuum adjusting valve (16) or the rotating speed of a water pump (20), enables the steam drum temperature, material temperature and vacuum pressure in the tank to be within the set value range of a sugar paste concentration process, completes the crystal growing process within set time, and enters a crystal solidification process;
(6) and a die bonding process: the system calculates the pre-entry speed by using first-order lead-lag and starts a water pipe (26), detects the entry flow value through a feed flowmeter (21), enables the entry flow value to be within the pre-entry speed range, adjusts the opening of the water pipe (26) in real time according to each detected value, and closes the water pipe (26) when the syrup brix meets the requirements of the current crystal fixing process and the crystal fixing process is completed within a set time;
(7) and a crystal growing procedure: after the crystal solidification process is finished, the system calculates the pre-feeding speed by utilizing first-order lead lag, the opening degree of a feeding main pipe (19) and a syrup pipe (27) is adjusted, so that the flow value and the supersaturation value of syrup and material are in the range of the pre-feeding flow, when other materials need to be cooked back in the whole process, the syrup pipe (27) or the current material pipe is closed, the corresponding material pipe to be cooked back is opened, the system adjusts the opening degree of each valve according to the parameters such as the material hammer value, the syrup viscosity value, the syrup and material purity value, the material temperature and the steam drum temperature and the like in the tank, then the actual feeding speed is controlled by performing fitting mixing operation according to the syrup concentration and the feeding flow, finally the syrup supersaturation degree is suitable for crystal growth when crystal growth is kept, the system counts the total amount of the syrup and the material entering the tank through a feeding flow meter (21), and the material liquid, mixing to obtain the cube number of the actual material, detecting the hammered value of syrup mother liquor in real time through an optical hammered meter (31), detecting the viscosity value of syrup in real time through a massecuite resistance viscometer (28), performing data analysis according to the liquid level in the tank, the concentration value of the syrup mother liquor, the viscosity value of the syrup and the total amount of the materials in the tank, and judging whether to enter a massecuite finishing process;
(8) and a massecuite finishing procedure: the system converts and arranges the estimated water consumption according to the set parameters and the measured parameters of syrup concentration, syrup viscosity, syrup purity, syrup temperature, material liquid level, crystallization tank volume and steam pressure, closes a syrup pipe (27) and a material pipe I (25), or a material pipe II (24), or a material pipe III (23), opens a water pipe (26), opens a feeding main pipe (19), detects the total amount of water entering the tank through a feeding flowmeter (21), judges whether to close the water pipe (26) and the feeding main pipe (19) or not according to the syrup brix feedback of an optical brix meter (31), closes a water pump (20) or opens a vacuum regulating valve (16), reduces the vacuum to 400mbar or raises the temperature of a base material to about 80 ℃, restarts the water pump (20) or opens the vacuum regulating valve (16), and keeps supersaturation degree of water entering according to the syrup mother liquid brix in the vacuum lifting process, under the action of the stirring paddle, water and materials in the tank are uniformly mixed, the sugar crystal and the waste sand with undersize volume are dissolved and finished within the set finishing time and the vacuum reduction and vacuum extraction periods, and when finishing timing overflows or the vacuum and tank temperature are recovered to be normal, finishing of sugar paste;
(9) and a massecuite concentrating procedure: the system adjusts the opening of a steam pipe (4) and a vacuum adjusting valve (16) or the rotating speed of a water pump (20), so that the steam drum temperature, the material temperature and the vacuum pressure in the tank are in a set value range for concentrating the massecuite, in the process of concentrating the massecuite, the system calculates the proportion of the mother liquid of the material in the tank to the crystal according to the concentration value of the mother liquid of the material in the tank and the viscosity value of the material in the tank, and enters a sugar releasing process or a water boiling waiting process when the ratio of the mother liquid to the crystal reaches the set value;
(10) and a sugar releasing procedure: when the sugar level value in the crystallization-assisting box (30) is lower than the set sugar-releasing liquid level, the system controls the stirring paddle to stop running, the steam pipe (4) is closed, the vacuum regulating valve (16) or the water pump (20) is closed, the feeding main valve (19) is closed, the emptying pipe (10) is opened, the sugar-releasing pipe (32) is opened after the vacuum returns to the standard atmospheric pressure, the sugar in the tank flows into the crystallization-assisting box (30) through the sugar-releasing pipe (32), the system detects the sugar liquid level in the tank in real time through the upper and lower pressure difference liquid level meters (7 and 1), and the sugar-releasing process is finished when the sugar level value in the tank is lower than the set value;
(11) and a water boiling waiting process: the system controls to open or close the water pipe (26) according to the measured syrup concentration, detects the inflow water flow value through the inflow flowmeter (21), adjusts the opening of the inflow header pipe (19), adjusts the opening of the steam pipe (4) and the vacuum regulating valve (16) or the rotating speed of the water pump (20), and timely adjusts the opening of the water pipe (26) according to each detected value in real time, so that the inflow mother liquor brix is suitable for the requirement of the current water boiling waiting process, and when the liquid level value in the crystallization-assisting box (30) or the material in the previous stage before sugar discharge can be boiled, the system quits the water boiling waiting process;
(12) and washing and filling procedures: after the sugar cream in the tank is completely discharged into the crystallization assisting box (30), the system opens the bottom discharge pipe (2) and the tank washing water pipe (8), the hot water is used for washing the space in the tank within the set washing time, the hot water washing of the tank is finished, the tank washing water pipe (8) is closed, the tank washing steam pipe (9) is opened again, the steam is used for washing the space in the tank within the set washing time until the set time is reached, the tank washing steam pipe (9) is closed, after the sugar boiling tank (1) is kept still for a certain time, all valves are closed, and the whole automatic sugar boiling process is finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010229397.7A CN111235325A (en) | 2020-03-27 | 2020-03-27 | Automatic sugar boiling control system and method for sugar refinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010229397.7A CN111235325A (en) | 2020-03-27 | 2020-03-27 | Automatic sugar boiling control system and method for sugar refinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111235325A true CN111235325A (en) | 2020-06-05 |
Family
ID=70873787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010229397.7A Pending CN111235325A (en) | 2020-03-27 | 2020-03-27 | Automatic sugar boiling control system and method for sugar refinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111235325A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113388703A (en) * | 2021-07-21 | 2021-09-14 | 广西锦东自动化设备有限公司 | Molasses continuous automatic heating and diluting device and method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102925593A (en) * | 2012-11-02 | 2013-02-13 | 中国轻工业南宁设计工程有限公司 | Sugar boiling automatic control device |
| CN104946802A (en) * | 2015-06-29 | 2015-09-30 | 南宁糖业股份有限公司 | Automatic control system of intermittent sugar boiling containers in cane sugar factories |
| CN106191322A (en) * | 2016-08-19 | 2016-12-07 | 广西宏智科技有限公司 | Interval boils sugar automatic control system |
| CN106191323A (en) * | 2016-08-15 | 2016-12-07 | 杭州和利时自动化有限公司 | A kind of method for manufacturing sugar automatically |
| CN207944114U (en) * | 2017-12-29 | 2018-10-09 | 南宁誉满华自动化称重设备有限公司 | Intermittent boiling pan boils sugared Measurement and Control System automatically |
| CN109457059A (en) * | 2018-12-12 | 2019-03-12 | 中国轻工业南宁设计工程有限公司 | Horizontal continuous sugar boiling process intelligence control system |
-
2020
- 2020-03-27 CN CN202010229397.7A patent/CN111235325A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102925593A (en) * | 2012-11-02 | 2013-02-13 | 中国轻工业南宁设计工程有限公司 | Sugar boiling automatic control device |
| CN104946802A (en) * | 2015-06-29 | 2015-09-30 | 南宁糖业股份有限公司 | Automatic control system of intermittent sugar boiling containers in cane sugar factories |
| CN106191323A (en) * | 2016-08-15 | 2016-12-07 | 杭州和利时自动化有限公司 | A kind of method for manufacturing sugar automatically |
| CN106191322A (en) * | 2016-08-19 | 2016-12-07 | 广西宏智科技有限公司 | Interval boils sugar automatic control system |
| CN207944114U (en) * | 2017-12-29 | 2018-10-09 | 南宁誉满华自动化称重设备有限公司 | Intermittent boiling pan boils sugared Measurement and Control System automatically |
| CN109457059A (en) * | 2018-12-12 | 2019-03-12 | 中国轻工业南宁设计工程有限公司 | Horizontal continuous sugar boiling process intelligence control system |
Non-Patent Citations (1)
| Title |
|---|
| 程玉娥等: "优化煮糖罐结构和控制程序全面实现全自动煮糖", 甘蔗糖业, vol. 46, no. 6, pages 39 - 47 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113388703A (en) * | 2021-07-21 | 2021-09-14 | 广西锦东自动化设备有限公司 | Molasses continuous automatic heating and diluting device and method |
| CN113388703B (en) * | 2021-07-21 | 2024-06-04 | 广西锦东自动化设备有限公司 | Continuous automatic heating and diluting device and method for molasses |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102925593B (en) | Sugar boiling automatic control device | |
| CN109457059A (en) | Horizontal continuous sugar boiling process intelligence control system | |
| CN104946802A (en) | Automatic control system of intermittent sugar boiling containers in cane sugar factories | |
| CN102676704A (en) | Crystallizing tank for boiling sugar | |
| CN111235325A (en) | Automatic sugar boiling control system and method for sugar refinery | |
| CN109126191A (en) | Separator and extraction separation method and its application are extracted in a kind of automation of Chinese medicine | |
| CN103695569B (en) | Preliming reactor and method | |
| CN105435482B (en) | A kind of multi-stage vacuum adiabatic flash continuous crystallisation process and equipment | |
| CN106191322A (en) | Interval boils sugar automatic control system | |
| CN108726578A (en) | Ferrous sulfate continuous crystallisation technique in a kind of production of sulfate process titanium dioxide | |
| CN212223017U (en) | Automatic control system for sugar boiling of sugar refinery | |
| CN203065492U (en) | Automatic sugar cooking control device | |
| CN103266183B (en) | Cane juice transit container and method | |
| CN107583482A (en) | Sugar refinery molasses serial dilution intelligence control system | |
| CN208983017U (en) | A kind of syrup delivery device | |
| CN202735819U (en) | On-line dilution system for sugar boiling materials | |
| CN209685819U (en) | Horizontal continuous sugar boiling process intelligence control system | |
| CN206940919U (en) | One kind sugaring crystallizing tank | |
| CN206256073U (en) | One kind size mixing starch milk automatically continuously enzyme-added and PH regulating systems | |
| CN205121365U (en) | Brown granulated sugar goes back to constant current system of dissolving | |
| CN202205106U (en) | Online adjusting and monitoring system for pH value of starch milk | |
| CN215975865U (en) | Automatic control system for sugar-making crystallization process | |
| CN203307348U (en) | Cane juice transferring container | |
| CN213327666U (en) | Sugar boiling and crystallizing device for sucrose processing | |
| CN214458078U (en) | Sugar boiling crystallizing tank |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |