CN101596426B - Solution automatic preparation method in calcium carbonate wet-milling process - Google Patents

Solution automatic preparation method in calcium carbonate wet-milling process Download PDF

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CN101596426B
CN101596426B CN 200910099476 CN200910099476A CN101596426B CN 101596426 B CN101596426 B CN 101596426B CN 200910099476 CN200910099476 CN 200910099476 CN 200910099476 A CN200910099476 A CN 200910099476A CN 101596426 B CN101596426 B CN 101596426B
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caco3
solution
tank
formulation
preparation
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CN101596426A (en
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叶明�
胡焕啸
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宁波中华纸业有限公司
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P80/00Climate change mitigation technologies for sector-wide applications
    • Y02P80/30Reducing waste in manufacturing processes; Calculations of released waste quantities

Abstract

The invention discloses a solution automatic preparation system in a calcium carbonate wet-milling process, which is characterized in that the system comprises a raw material trough, a preparation trough, a storing trough and a PLC, wherein a raw material conveying device is arranged between the raw material trough and the preparation trough; the preparation trough is internally provided with a blender; a weighing sensor is arranged on the preparation trough; the upper end of the preparation trough is connected with a drug inlet pipe and a water inlet pipe; a water inlet valve is arranged on the water inlet pipe and a flow meter and a drug adding pump are arranged on the drug inlet pipe; a discharging tube is arranged between the lower end of the preparation trough and the upper end of the storing trough; the discharging tube is provided with a discharging valve, the raw material conveying device, the blender, the weighing sensor and each valve which are controlled by PLC; and the system has the advantages that the system realizes the automatic preparation and automatic production of the calcium carbonate solution in the calcium carbonate wet-milling process, is not intervened by manpower, has high automation degree, reduces the waste of raw material, and the quality of finished goods are stable as the whole process is automatically controlled.

Description

一种碳酸钙湿磨流程中的溶液配制方法 The method of preparation of a solution of calcium carbonate wet milling process

技术领域 FIELD

[0001] 本发明涉及一种造纸行业中碳酸钙溶液的配制方法,尤其是涉及一种碳酸钙湿磨流程中的溶液配制方法。 [0001] The present invention relates to a method of preparation of calcium carbonate in the papermaking industry, a solution, particularly a solution prepared relates to a method of calcium carbonate wet grinding process.

[0002] 在造纸行业中,目前碳酸钙湿磨生产流程以单体独立运行设备为主,其中碳酸钙溶液的配比流程通过现场人工手动逐一启停电气设备,再通过控制室内的模拟显示控制屏监视各种设备的运行来实现,该过程由于通过人工控制,自动化程度不高,人员配制大,生产过程费时费力,对原料的浪费明显,并且生产过程中经常需要人工调整某些参量,成品质量不稳定。 [0002] In the paper industry, are currently produced calcium carbonate wet grinding process to run independently apparatus main monomer, wherein the ratio of the solution of calcium individually start and stop the flow of electrical equipment through the field manually, then the display is controlled by the control SIMULATION screen monitor the various equipment is achieved, since the process by the manual control, automation degree, staffing large, time-consuming production process, the raw material waste significantly, and the production process often requires manual adjustment of certain parameters, the finished unstable quality.

[0003] 本发明所要解决的技术问题是提供一种能实现自动化生产,成品质量稳定,原材料浪费少且能实现自动控制的碳酸钙湿磨流程中的溶液配制方法。 [0003] The present invention solves the technical problem is to provide a stable automatic production, product quality, and can achieve less waste of raw materials solution preparation method for automatic control of calcium carbonate wet grinding process.

[0004] 本发明解决上述技术问题所采用的技术方案为:一种碳酸钙湿磨流程中的溶液自动配制系统,它包括原料槽、配制槽、储存槽和PLC,所述的原料槽与所述的配制槽之间设置有原料输送装置,所述的配制槽内设置有搅拌机,所述的配制槽上设置有称重传感器,所述的配制槽的上端连接有进药管和进水管,所述的进水管上设置有进水阀,所述的进药管上设置有流量计和加药泵,所述的配制槽的下端与所述的储存槽的上端之间连接有出料管, 所述的出料管上设置有出料阀,所述的原料输送装置、所述的搅拌机、所述的称重传感器和所述的各个阀门通过所述的PLC控制,所述的PLC包括开关量输入输出模块、模拟量输入输出模块和循环生产逻辑功能块。 [0004] aspect of the present invention to solve the above technical problem is: one kind of calcium carbonate wet grinding process was automatic dispensing system, comprising a feed tank, preparation tank, storage tank and the PLC, the starting material and the grooves formulated groove is provided between said material handling apparatus, the groove is provided with a stirrer formulation, provided with a load cell of the formulation groove, the upper end of the groove formulation into the cartridge and connected to a water inlet pipe, disposed on the intake valve of the inlet pipe, a flow meter is provided with a pump and dosing the cartridge inlet, is connected between the upper end of the lower end of the reservoir tank according formulated with said outlet tube said discharge pipe is provided with a discharge valve on said feed conveyor means, said mixer, said load cell and each of said valve through said control PLC, said PLC comprising switch input and output modules, analog input and output modules and logical block production cycle.

[0005] 所述的原料输送装置为螺旋输送机,所述的螺旋输送机的一端与所述的原料槽连接,所述的螺旋输送机的另一端与所述的配制槽的上端连接。 [0005] The starting material conveying means is a screw conveyor, one end of the feed trough of the screw conveyor is connected to the other end of the screw conveyor is connected to an upper end of said groove formulation.

[0006] 所述的配制槽的下端部设置有卸料管,所述的卸料管上设置有卸料阀,方便配制槽的清洗。 The lower end portion of the groove formulation [0006] provided with a discharge pipe provided with a discharge valve on the discharge tube to facilitate the preparation of the cleaning tank.

[0007] —种利用所述的配制系统的溶液配制方法,它包括以下步骤: [0007] - said species using a dispensing system solution preparation method, comprising the steps of:

[0008] (1)、设定需要制备的&0)3溶液的浓度和总重量,PLC根据以下公式经控制逻辑运算后计算出需加入配制槽中的CaCO3干粉含量和水的含量,计算公式为: [0008] (1), set in & 0) 3 solution concentration and the total weight, PLC is calculated by the following expression to be added by the control logic operation CaCO3 powder formulation tank content and water content, calculated as :

[0009] X = (WXS/100) X (1+X0/100)Y = W- (WXS/100) X (1+X0/100) [0009] X = (WXS / 100) X (1 + X0 / 100) Y = W- (WXS / 100) X (1 + X0 / 100)

[0010] 其中:X表示需加入配制槽中的CaCO3干粉含量(单位:Kg),Y表示需加入配制槽中的水的含量(单位:Kg),W表示需制备的CaCO3溶液的总重量(单位:Kg),S表示需制备的CaCO3溶液的浓度(单位:% ),\表示需加入配制槽中的CaCO3干粉中的含水量(单位:% ); [0010] wherein: X represents a groove formulated to be added CaCO3 powder content (unit: Kg), Y represents a water tank to be added formulated content (unit: Kg), W represents the total weight of the solution to be produced, CaCO3 ( unit: Kg), S represents the concentration (in solution to be produced, CaCO3:%), \ represents formulated to be added in the tank water content CaCO3 powder (unit:%);

[0011] (2), PLC中的开关量输入输出模块输出继电器动作,首先命令进水管上的进水阀打开向配制槽中加水,然后命令进药管上的加药泵启动向配制槽中加分散剂,同时通过进药管上的流量计控制分散剂的加入量,当分散剂的加入量达到设定CaCO3溶液总重量W的50-100ppm时,流量计反馈信息至循环生产逻辑功能块,由开关量输入输出模块输出继电器动作命令加药泵关闭,停止向配制槽中加分散剂; [0011] (2), the PLC switch input and output modules of the relay outputs, first commands the inlet pipe opening on the inlet valve to add water preparation tank, and then enter a command to start the dosing pump to the preparation tank cartridge when a dispersant, while controlling the amount of dispersant is added through a flow meter into the cartridge, when the added amount of the dispersant solution reaches a set 50-100ppm CaCO3 total weight W, the flow meter feedback to the production cycle logic function blocks, a switch input and output modules of the relay outputs command dosing pump is turned off to stop the formulation tank was added dispersant;

[0012] (3)、通过称重传感器测量配制槽的重量,并将称重传感器的测量值通过PLC中的模拟量输入输出模块转换为符合PLC采集的模拟量信号输入循环生产逻辑功能块中,当配制槽内水的重量达到2000Kg时,循环生产逻辑功能块输出搅拌机变频器启动命令,同时通过调整模拟量输出模块的输出值设定搅拌机的初始搅拌转速为300r/rpm,然后通过循环生产逻辑功能块中的时间累加计数器在2分钟内将搅拌机的转速加速到全速; [0012] (3), prepared by the load cell weight measurement groove, and the load cell measured value is converted to an analog signal input line with PLC acquisition cycle of production logical block through the analog input of the PLC output modules when the weight of water in the tank reaches formulated 2000Kg, the production cycle logic block outputs a stirrer drive start command, while stirring by a stirrer set to the initial adjustment of the analog output module of the output value of the rotation speed of 300r / rpm, and then through the cycle of production logical block of time up-counter for 2 minutes in the stirrer speed accelerate to full speed;

[0013] 0)、当配制槽内所加入水的重量达到需加入水量Y的85%时,开关量输入输出模块发出进水阀关闭命令关闭进水阀,停止向配制槽中加水; [0013] 0), when formulated tank water added weight to the amount of water to be added 85% of Y, the switch input and output module sends a command to close the inlet valve closing the inlet valve, the addition of water to the preparation tank;

[0014] (5)、开关量输入输出模块发出加料命令开启螺旋输送机上的加料螺旋,向配制槽中加入CaCO3干粉,并经搅拌机搅拌形成CaCO3溶液,当称重传感器测得配制槽内CaCO3溶液的重量达到(需加入&0)3干粉含量X+85%需加入水量Y)的重量总和时,开关量输入输出模块发出关闭加料命令关闭加料螺旋,停止向配制槽中加CaCO3干粉; [0014] (5), the switching input and output modules feed command issued on the open spiral feed screw conveyor, CaCO3 powder added to the formulation vessel, and stirred by a stirrer CaCO3 solution was formed, when the measured load cell preparation obtained solution tank CaCO3 when the weight reaches the (for an added & 0) 3 powder content to be added X + 85% water Y) is the sum of the weight of switch input and output module sends a command to close off the feed spiral feed, stopping the formulation tank was added CaCO3 powder;

[0015] (6)、开关量输入输出模块发出进水阀开启命令再次打开进水阀进水,当称重传感器测得配制槽内CaCO3溶液的重量达到设定的溶液总重量W时,开关量输入输出模块发出进水阀关闭命令关闭进水阀,停止向配制槽中加水,同时循环生产逻辑功能块控制搅拌机继续搅拌一段时间直至将CaCO3溶液搅拌均勻; [0015] (6), switch input and output module sends the command again opens the inlet valve opening the water inlet valve, when the measured weight of the load cell preparation obtained CaCO3 solution tank reaches the set weight of the total solution W, a switch input and output module sends a command to close the inlet valve closing the inlet valve, the addition of water to the preparation tank, while the production cycle control logic module stirrer stirring was continued for some time until a uniform solution was stirred CaCO3;

[0016] (7)、PLC根据以下公式经控制逻辑运算后计算出储存槽可储存CaCO3溶液的空余量,并将计算获得的数据输入到循环生产逻辑功能块中用于判断,计算公式为: [0016] (7), PLC operation after the control logic calculated as follows reservoir can store the amount of free CaCO3 solution, and the obtained data are input to calculate the production cycle for determining the logical block, is calculated as:

[0017] G = 3. HXr2XhXKX (90% -Ζ) X1000 [0017] G = 3. HXr2XhXKX (90% -Ζ) X1000

[0018] 其中:G表示储存槽的空余量(单位:Kg),r表示储存槽体的半径(单位:米),h 表示储存槽体的高度(单位:米),Z表示储存槽体中现有的CaCO3溶液(单位:% ),K表示CaCO3溶液的比重(单位:吨/米3),在上述公式中引入数据90 %是为了保证储存槽体内始终留有10%的空间,防止配制槽溶液比重出现异常时,溶液外溢影响工作区环境; [0018] provided wherein: G represents ullage storage tank (unit: Kg), r represents the radius of the storage tank (unit: m), h represents the height of the storage tank (unit: m), Z represents a reservoir body CaCO3 conventional solution (unit:%), K represents the specific gravity of the solution of CaCO3 (unit: t / m 3), the data introduced in the above formula is 90% of the reservoir body in order to ensure 10% of the space is always left, to prevent the formulation when abnormality occurs gravity tank solution, the solution spillover workplace environment;

[0019] (8)、循环生产逻辑功能块根据输入的空余量G判断储存槽的空余量G是否大于本次配制所得CaCO3溶液的总重量W,如果储存槽的空余量G小于本次配制所得CaCO3溶液的总重量W,则循环生产逻辑功能块进入等待状态,搅拌机继续搅拌,直到储存槽的空余量G 大于本次配制所得CaCO3溶液的总重量W时,循环生产逻辑功能块命令自动出料开始,开关量输入输出模块输出继电器动作,命令打开出料管上的出料阀,启动出料泵把在配制槽中配制好的CaCO3溶液从出料管输送到储存槽中,同时循环生产逻辑功能块调整模拟量输出模块的输出值,将搅拌机的搅拌转速下调到600r/rpm以下; [0019] (8), the production cycle logical block determined storage tank ullage G is greater than the current formulation resulting CaCO3 solution total weight W according spare inputs G, if the ullage storage tank G is less than the current formulation obtained CaCO3 solution total weight of W, the cycle of production of logic module enters a wait state to continue the stirring mixer until the ullage G reservoir is greater than the current formulation resulting CaCO3 solution on the total weight of W, the cycle of production logical block command automatically discharge start switch input and output modules of the relay outputs, the command to open the valve on the discharge pipe, a feed pump to start the preparation tank formulated CaCO3 solution conveyed from the feed pipe to the storage tank, while circulating logic of production function block to adjust the analog output value of the output module, the stirrer speed stirring down to 600r / rpm or less;

[0020] (9)、当称重传感器测得配制槽内CaCO3溶液的重量降到4000Kg时,循环生产逻辑功能块输出搅拌机变频器关闭命令,搅拌机停止搅拌,出料泵继续工作把配制槽中剩下的CaCO3溶液从出料管输送到储存槽中,当称重传感器测得配制槽内CaCO3溶液的重量降到OKg时,开关量输入输出模块命令出料阀关闭,出料泵停止工作,本次&0)3溶液自动配制结 [0020] (9), when the measured load cell preparation obtained solution tank CaCO3 reduced weight 4000Kg, the production cycle the drive logic block outputs a close command a stirrer, a stirrer the stirring was stopped, the feed pump continues to operate the formulation tank CaCO3 remaining solution is piped to the discharge from the storage tank, the load cell when the measured groove CaCO3 solution formulated to give a weight dropped OKG, digital input and output modules command a discharge valve is closed, the feed pump stops, The & 0) 3 was prepared automatically junction

束ο Beam ο

[0021] 所述的循环生产逻辑功能块根据实际生产需要重复上述步骤0)-(9),以实现CaCO3溶液自动配制系统的多次不间断循环自动配制。 [0021] The production cycle according to the logic function blocks need to repeat the above-described actual production step 0) - (9), in order to achieve the automatic solution dispensing system CaCO3 multiple continuous cycle automatically formulated.

[0022] 与现有技术相比,本发明的优点是通过本发明的自动配制系统和自动配制方法, 实现了碳酸钙湿磨流程中碳酸钙溶液的自动配制和自动生产,无需人工干预,自动化程度高,减少了原料的浪费,且由于整个过程实现自动控制,成品质量稳定,很好的满足了工艺的自动生产要求,同时也减少了人员配制,生产过程省时省力;此外,本发明还可以实现碳酸钙溶液的单循环自动配制和多次不间断循环自动配制,以满足实际生产不同需求。 [0022] Compared with the prior art, advantages of the present invention is formulated by an automatic system of the present invention, formulation methods and automatic, to achieve the automatic preparation of calcium carbonate in the solution of calcium carbonate wet grinding process and automated production, without human intervention, automated a high degree, reduce the waste of raw materials, because the entire process and to achieve automatic control, stable product quality, good to meet the requirements of automated production process, but also reduce the staffing, saves time and effort during the manufacturing process; in addition, the present invention further solution of calcium can be achieved and multiple-cycle uninterrupted automatic cycle automatically formulation is formulated to meet the actual production needs. 附图说明 BRIEF DESCRIPTION

[0023] 图1为本发明的系统结构示意图; [0023] FIG. 1 is a schematic view of a system configuration of the present invention;

[0024] 图2为本发明的自动配制过程流程图。 [0024] FIG 2 is automatically formulation process of the present invention. FIG.

具体实施方式 Detailed ways

[0025] 以下结合附图实施例对本发明作进一步详细描述。 [0025] The present invention will be described in further detail in conjunction with the accompanying drawings.

[0026] 如图所示,一种碳酸钙湿磨流程中的溶液自动配制系统,它包括原料槽1、配制槽2、储存槽3、螺旋输送机4和PLC(图中未显示),螺旋输送机4的一端与原料槽1连接,螺旋输送机4的另一端与配制槽2的上端连接,配制槽2内设置有搅拌机21,配制槽2上设置有称重传感器22,配制槽2的上端连接有进药管5和进水管6,进水管6上设置有进水阀61,进药管5上设置有流量计51和加药泵52,配制槽2的下端与储存槽3的上端之间连接有出料管7,出料管7上设置有出料阀71和出料泵72,配制槽2的下端部设置有卸料管23, 卸料管23上设置有卸料阀24,PLC包括开关量输入输出模块、模拟量输入输出模块和循环生产逻辑功能块。 [0026] As illustrated a calcium carbonate wet grinding process was automatic dispensing system, comprising a feed tank 1, preparation tank 2, the storage tank 3, a screw conveyor 4 and the PLC (not shown), the coil one end of the conveyor 4 is connected with the feed tank 1, the upper end of the other end of the screw conveyor 4 formulated tank 2 is connected, is provided inside the tank 2 is formulated with a stirrer 21, load cell 22 is provided with a groove 2 formulation, formulated grooves 2 into the upper end of the cartridge 5 is connected to the inlet pipe 6 and provided with an inlet valve 61 on inlet pipe 6, with a flow meter 51 and dosing pump 52 into the cartridge 5 is provided on the upper end and the lower end of the storage tank 2 preparation tank 3 7 is connected between the discharge pipe, the discharge pipe 7 is provided with a discharge valve 71 and the feed pump 72, the lower end portion of the groove 2 is formulated with a discharge pipe 23 is provided, is provided on the discharge pipe 23 has a discharge valve 24 , PLC switch including input and output modules, analog input and output modules logical block production cycle.

[0027] 上述配制系统实现CaCO3溶液的自动配制过程包括以下步骤: Automatic formulation process [0027] The dispensing system implemented CaCO3 solution comprising the steps of:

[0028] (1)、设定需要制备的&0)3溶液的浓度和总重量,PLC根据以下公式经控制逻辑运算后计算出需加入配制槽中的CaCO3干粉含量和水的含量,计算公式为: [0028] (1), set in & 0) 3 solution concentration and the total weight, PLC is calculated by the following expression to be added by the control logic operation CaCO3 powder formulation tank content and water content, calculated as :

[0029] X = (WXS/100) X (1+X0/100) Y = ff-(WXS/100) χ (ι+χ0/ιοο) [0029] X = (WXS / 100) X (1 + X0 / 100) Y = ff- (WXS / 100) χ (ι + χ0 / ιοο)

[0030] 其中:X表示需加入配制槽中的CaCO3干粉含量(单位:Kg),Y表示需加入配制槽中的水的含量(单位:Kg),W表示需制备的CaCO3溶液的总重量(单位:Kg),S表示需制备的CaCO3溶液的浓度(单位:% ),\表示需加入配制槽中的CaCO3干粉中的含水量(单位:% ); [0030] wherein: X represents a groove formulated to be added CaCO3 powder content (unit: Kg), Y represents a water tank to be added formulated content (unit: Kg), W represents the total weight of the solution to be produced, CaCO3 ( unit: Kg), S represents the concentration (in solution to be produced, CaCO3:%), \ represents formulated to be added in the tank water content CaCO3 powder (unit:%);

[0031] (2)、PLC中的开关量输入输出模块输出继电器动作,首先命令进水管上的进水阀打开向配制槽中加水,然后命令进药管上的加药泵启动向配制槽中加分散剂,同时通过进药管上的流量计控制分散剂的加入量,当分散剂的加入量达到设定CaCO3溶液总重量W的50ppm时,流量计反馈信息至循环生产逻辑功能块,由开关量输入输出模块输出继电器动作命令加药泵关闭,停止向配制槽中加分散剂; [0031] (2), the PLC switch input and output modules of the relay outputs, first commands the inlet pipe opening on the inlet valve to add water preparation tank, and then enter a command to start the dosing pump to the preparation tank cartridge when a dispersant, while controlling the amount of dispersant is added through a flow meter into the cartridge, when the added amount of the dispersant solution reaches 50ppm CaCO3 total weight W is set, the flow meter feedback to the logical block production cycle, a switch input and output modules of the relay outputs command dosing pump is turned off to stop the formulation tank was added dispersant;

[0032] (3)、通过称重传感器测量配制槽的重量,并将称重传感器的测量值通过PLC中的模拟量输入输出模块转换为符合PLC采集的模拟量信号输入循环生产逻辑功能块中,当配制槽内水的重量达到2000Kg时,循环生产逻辑功能块输出搅拌机变频器启动命令,同时通过调整模拟量输出模块的输出值设定搅拌机的初始搅拌转速为300r/rpm,然后通过循环生产逻辑功能块中的时间累加计数器在2分钟内将搅拌机的转速加速到全速; [0032] (3), prepared by the load cell weight measurement groove, and the load cell measured value is converted to an analog signal input line with PLC acquisition cycle of production logical block through the analog input of the PLC output modules when the weight of water in the tank reaches formulated 2000Kg, the production cycle logic block outputs a stirrer drive start command, while stirring by a stirrer set to the initial adjustment of the analog output module of the output value of the rotation speed of 300r / rpm, and then through the cycle of production logical block of time up-counter for 2 minutes in the stirrer speed accelerate to full speed;

[0033] 0)、当配制槽内所加入水的重量达到需加入水量Y的85%时,开关量输入输出模块发出进水阀关闭命令关闭进水阀,停止向配制槽中加水; [0033] 0), when formulated tank water added weight to the amount of water to be added 85% of Y, the switch input and output module sends a command to close the inlet valve closing the inlet valve, the addition of water to the preparation tank;

[0034] (5)、开关量输入输出模块发出加料命令开启螺旋输送机上的加料螺旋,向配制槽中加入CaCO3干粉,并经搅拌机搅拌形成CaCO3溶液,当称重传感器测得配制槽内CaCO3溶液的重量达到(需加入&0)3干粉含量X+85%需加入水量Y)的重量总和时,开关量输入输出模块发出关闭加料命令关闭加料螺旋,停止向配制槽中加CaCO3干粉; [0034] (5), the switching input and output modules feed command issued on the open spiral feed screw conveyor, CaCO3 powder added to the formulation vessel, and stirred by a stirrer CaCO3 solution was formed, when the measured load cell preparation obtained solution tank CaCO3 when the weight reaches the (for an added & 0) 3 powder content to be added X + 85% water Y) is the sum of the weight of switch input and output module sends a command to close off the feed spiral feed, stopping the formulation tank was added CaCO3 powder;

[0035] (6)、开关量输入输出模块发出进水阀开启命令再次打开进水阀进水,当称重传感器测得配制槽内CaCO3溶液的重量达到设定的溶液总重量W时,开关量输入输出模块发出进水阀关闭命令关闭进水阀,停止向配制槽中加水,同时循环生产逻辑功能块控制搅拌机继续搅拌一段时间直至将CaCO3溶液搅拌均勻; [0035] (6), switch input and output module sends the command again opens the inlet valve opening the water inlet valve, when the measured weight of the load cell preparation obtained CaCO3 solution tank reaches the set weight of the total solution W, a switch input and output module sends a command to close the inlet valve closing the inlet valve, the addition of water to the preparation tank, while the production cycle control logic module stirrer stirring was continued for some time until a uniform solution was stirred CaCO3;

[0036] (7)、PLC根据以下公式经控制逻辑运算后计算出储存槽可储存CaCO3溶液的空余量,并将计算获得的数据输入到循环生产逻辑功能块中用于判断,计算公式为: [0036] (7), PLC operation after the control logic calculated as follows reservoir can store the amount of free CaCO3 solution, and the obtained data are input to calculate the production cycle for determining the logical block, is calculated as:

[0037] G = 3. HXr2XhXKX (90% -Ζ) X 1000 [0037] G = 3. HXr2XhXKX (90% -Ζ) X 1000

[0038] 其中:G表示储存槽的空余量(单位:Kg),r表示储存槽体的半径(单位:米),h 表示储存槽体的高度(单位:米),Z表示储存槽体中现有的CaCO3溶液(单位:% ),K表示CaCO3溶液的比重(单位:吨/米3); [0038] provided wherein: G represents ullage storage tank (unit: Kg), r represents the radius of the storage tank (unit: m), h represents the height of the storage tank (unit: m), Z represents a reservoir body CaCO3 conventional solution (unit:%), K represents the specific gravity of a solution of CaCO3 (unit: t / m3);

[0039] (8)、循环生产逻辑功能块根据输入的空余量G判断储存槽的空余量G是否大于本次配制所得CaCO3溶液的总重量W,如果储存槽的空余量G小于本次配制所得CaCO3溶液的总重量W,则循环生产逻辑功能块进入等待状态,搅拌机继续搅拌,直到储存槽的空余量G 大于本次配制所得CaCO3溶液的总重量W时,循环生产逻辑功能块命令自动出料开始,开关量输入输出模块输出继电器动作,命令打开出料管上的出料阀,启动出料泵把在配制槽中配制好的CaCO3溶液从出料管输送到储存槽中,同时循环生产逻辑功能块调整模拟量输出模块的输出值,将搅拌机的搅拌转速下调到600r/rpm以下; [0039] (8), the production cycle logical block determined storage tank ullage G is greater than the current formulation resulting CaCO3 solution total weight W according spare inputs G, if the ullage storage tank G is less than the current formulation obtained CaCO3 solution total weight of W, the cycle of production of logic module enters a wait state to continue the stirring mixer until the ullage G reservoir is greater than the current formulation resulting CaCO3 solution on the total weight of W, the cycle of production logical block command automatically discharge start switch input and output modules of the relay outputs, the command to open the valve on the discharge pipe, a feed pump to start the preparation tank formulated CaCO3 solution conveyed from the feed pipe to the storage tank, while circulating logic of production function block to adjust the analog output value of the output module, the stirrer speed stirring down to 600r / rpm or less;

[0040] (9)、当称重传感器测得配制槽内CaCO3溶液的重量降到4000Kg时,循环生产逻辑功能块输出搅拌机变频器关闭命令,搅拌机停止搅拌,出料泵继续工作把配制槽中剩下的CaCO3溶液从出料管输送到储存槽中,当称重传感器测得配制槽内CaCO3溶液的重量降到OKg时,开关量输入输出模块命令出料阀关闭,出料泵停止工作,本次&0)3溶液自动配制结 [0040] (9), when the measured load cell preparation obtained solution tank CaCO3 reduced weight 4000Kg, the production cycle the drive logic block outputs a close command a stirrer, a stirrer the stirring was stopped, the feed pump continues to operate the formulation tank CaCO3 remaining solution is piped to the discharge from the storage tank, the load cell when the measured groove CaCO3 solution formulated to give a weight dropped OKG, digital input and output modules command a discharge valve is closed, the feed pump stops, The & 0) 3 was prepared automatically junction

束ο Beam ο

[0041] 此外,循环生产逻辑功能块还可根据实际生产需要多次重复上述步骤(2)-(9),以实现CaCO3溶液的多次不间断循环自动配制。 [0041] Further, logical block production cycle may be repeated the above-described step (2) in accordance with actual production times - (9), in order to achieve multiple CaCO3 solution formulation uninterrupted automatic cycle.

[0042] 上述实施例中,PLC为可编程逻辑控制器,本发明所用的PLC采用西门子公司生产的S7-300系列控制模块,组态编程语言采用STEP7V5. 4 ;称重传感器所测量的值为配制槽本身的重量与配制槽内水(或溶液)的重量之和,该测量值输送到PLC中经模拟量输入输出模块转换后,去掉了配制槽本身的重量,最后输送到循环生产逻辑功能块的信号为配制槽内水(或溶液)的净重量;此外,循环生产逻辑功能块是通过PLC编程软件编程实现的程序,循环生产逻辑功能块存储在PLC的CPU芯片中,再经由CPU编译运算循环生产逻辑功能块后,控制开关量输入输出模块发出动作命令。 [0042] The above-described embodiments, a programmable logic controller PLC, PLC used in the present invention is produced by Siemens S7-300 series control module, the configuration using the programming language STEP7V5 4;. The measured value of the load cell the weight of the groove itself formulated preparation tank water (or solution) and the weight of the measured value is delivered to the PLC via the input analog converted after output module, remove the weight of the preparation tank itself, and finally fed to the production cycle logic function signal block is formulated in water in the tank (or solution) the net weight; in addition, the production cycle is a program logic function blocks realized by PLC programming software programming, the production cycle logic function blocks stored in the PLC CPU chip, and then via the CPU compiled after the logical block production cycle of operation, input and output modules control switch issues an operation command.

Claims (2)

1. 一种碳酸钙湿磨流程中的溶液配制方法,其特征在于采用的溶液自动配制系统为: 包括原料槽、配制槽、储存槽和PLC,所述的原料槽与所述的配制槽之间设置有螺旋输送机, 所述的螺旋输送机的一端与所述的原料槽连接,所述的螺旋输送机的另一端与所述的配制槽的上端连接,所述的配制槽内设置有搅拌机,所述的配制槽上设置有称重传感器,所述的配制槽的上端连接有进药管和进水管,所述的进水管上设置有进水阀,所述的进药管上设置有流量计和加药泵,所述的配制槽的下端与所述的储存槽的上端之间连接有出料管,所述的出料管上设置有出料阀,所述的配制槽的下端部设置有卸料管,所述的卸料管上设置有卸料阀,所述的螺旋输送机、所述的搅拌机、所述的称重传感器和所述的各个阀门通过所述的PLC控制,所述的PLC包括开关量输入输出 A solution of calcium carbonate preparation method of the wet milling process, which is characterized by using an automatic solution dispensing system as: raw material comprising a groove, the groove formulation, storage tank and the PLC, the feedstock preparation tank with said groove of is provided between the screw conveyor, one end of the feed trough of the screw conveyor is connected to the other end of the upper end of the formulated groove of the screw conveyor is connected to the groove is provided with a formulation mixer, disposed on said grooves are formulated load cell, an upper end of said groove formulation into the cartridge and connected to a water inlet pipe, said inlet pipe is provided with a water inlet valve, the inlet of said cartridge is provided with a flow meter and dosing pump, there is between the lower end of the upper groove and the formulation of the storage tank is connected to the discharge tube, said discharge tube is provided with a discharge valve, said groove formulation is provided with a lower end portion of the discharge tube, is provided with a discharge valve on the discharge pipe, said screw conveyor, said mixer, said load cell and each of said valve through said PLC controlling said switch comprising input and output PLC 块、模拟量输入输出模块和循环生产逻辑功能块;具体的溶液配制方法包括以下步骤:(1)、设定需要制备的(^0)3溶液的浓度和总重量,PLC根据以下公式经控制逻辑运算后计算出需加入配制槽中的CaCO3干粉含量和水的含量,计算公式为:X = (WXS/100) X (1+X0/100) Y = W- (WXS/100) χ (ι+χ0/ιοο)其中:x表示需加入配制槽中的CaCO3干粉含量,单位:Kg,Y表示需加入配制槽中的水的含量,单位:Kg,W表示需制备的CaCO3溶液的总重量,单位:Kg,S表示需制备的CaCO3溶液的浓度,X0表示需加入配制槽中的CaCO3干粉中的含水量;O)、PLC中的开关量输入输出模块输出继电器动作,首先命令进水管上的进水阀打开向配制槽中加水,然后命令进药管上的加药泵启动向配制槽中加分散剂,同时通过进药管上的流量计控制分散剂的加入量,当分散剂的加入量达到设定CaCO3溶液总重量W的50-10 Block, analog input and output modules production cycle logic module; specific solution formulation method comprising the steps of: (1), set the desired preparation (^ 0) concentration and the total weight of the solution, PLC control by the following formula logic operation content was calculated to be added in the formulation tank CaCO3 powder and water content, calculated as: X = (WXS / 100) X (1 + X0 / 100) Y = W- (WXS / 100) χ (ι + χ0 / ιοο) where: x represents the content of CaCO3 powder formulation to be added groove, unit: Kg, Y represents a formulation tank of water to be added to the content, unit: Kg, W represents the total weight of the solution to be produced, CaCO3, unit: Kg, S represents the concentration of the solution to be produced, CaCO3, X0 indicates the water content to be added CaCO3 powder prepared in the tank; O), digital input and output modules of the PLC relay output, the first command into the pipe adding water to the water inlet valve preparation tank, and then enter a command to start an amount the dosing pump on the cartridge to a dispersant formulation tank, while controlling the dispersant through the flow meter into the cartridge, when the added amount of the dispersant CaCO3 solution reaches the set 50-10 of the total weight W 0ppm时,流量计反馈信息至循环生产逻辑功能块,由开关量输入输出模块输出继电器动作命令加药泵关闭,停止向配制槽中加分散剂;(3)、通过称重传感器测量配制槽的重量,并将称重传感器的测量值通过PLC中的模拟量输入输出模块转换为符合PLC采集的模拟量信号输入循环生产逻辑功能块中,当配制槽内水的重量达到2000Kg时,循环生产逻辑功能块输出搅拌机变频器启动命令,同时通过调整模拟量输出模块的输出值设定搅拌机的初始搅拌转速为300rpm,然后通过循环生产逻辑功能块中的时间累加计数器在2分钟内将搅拌机的转速加速到全速;、当配制槽内所加入水的重量达到需加入水量Y的85%时,开关量输入输出模块发出进水阀关闭命令关闭进水阀,停止向配制槽中加水;(5)、开关量输入输出模块发出加料命令开启螺旋输送机上的加料螺旋,向配制槽中加 When 0 ppm, the flowmeter feedback loop to produce a logic function block by switching input and output modules of the relay outputs command dosing pump is turned off to stop the dispersant added to the formulation vessel; (3), prepared by weighing sensor measures the grooves by weight, and the load cell measured value is converted to an analog input signal correspond to the PLC acquired logical block production cycle, when formulated by weight water in the tank reaches 2000Kg, the production cycle by the logic of the PLC analog input and output modules function block outputs a stirrer drive start command, while setting the initial stirrer speed was stirred by adjusting the output value of the analog output module is at 300 rpm, then the counter for 2 minutes by a stirrer speed acceleration cumulative logical block production cycle time to full speed; when formulated by weight of added water tank reaches 85% of the amount of water to be added is Y, the switch input and output module sends a command to close the inlet valve closing the inlet valve, the addition of water to the preparation tank; (5), switch input and output module sends a command to turn on feed screw conveyor on spiral feed, added to the formulation vessel CaCO3干粉,并经搅拌机搅拌形成CaCO3溶液,当称重传感器测得配制槽内CaCO3溶液的重量达到需加入CaCO3干粉含量X+85%需加入水量Y的重量总和时,开关量输入输出模块发出关闭加料命令关闭加料螺旋,停止向配制槽中加CaCO3干粉;(6)、开关量输入输出模块发出进水阀开启命令再次打开进水阀进水,当称重传感器测得配制槽内CaCO3溶液的重量达到设定的溶液总重量W时,开关量输入输出模块发出进水阀关闭命令关闭进水阀,停止向配制槽中加水,同时循环生产逻辑功能块控制搅拌机继续搅拌一段时间直至将CaCO3溶液搅拌均勻;(7)、PLC根据以下公式经控制逻辑运算后计算出储存槽可储存CaCO3溶液的空余量,并将计算获得的数据输入到循环生产逻辑功能块中用于判断,计算公式为:G = 3. HXr2XhXKX (90% -Ζ) X1000其中:G表示储存槽的空余量,单位:Kg,r表示储存槽体的 When CaCO3 powder, and the CaCO3 was formed by stirring with a stirrer, to obtain the load cell when the measured weight of the formulated solution tank CaCO3 CaCO3 powder to be added to reach the content of X + 85% by weight of the total amount of water must be added to Y, the switch input and output module sends a Close feeding spiral feed command closes, stopping the dry powder formulation tank was added CaCO3; (6), the switching input and output modules on command is sent again to open the inlet valve water inlet valve, when the load sensor measures CaCO3 solution preparation tank when the weight of the total weight of the solution reaches the set W, switch input and output module sends a command to close the inlet valve closing the inlet valve, the addition of water to the preparation tank, while the production cycle control logic module stirrer stirring was continued for some time until the solution CaCO3 stir; (7), PLC according to the following equation is calculated after calculating the amount of control logic stored CaCO3 spare reservoir solution, and the obtained data are input to calculate the production cycle for determining the logical block, is calculated as: G = 3. HXr2XhXKX (90% -Ζ) X1000 provided wherein: G represents the storage tank ullage, unit: Kg, r represents the reservoir body 半径,单位:米,h表示储存槽体的高度,单位:米,Z表示储存槽体中现有的CaCO3溶液,K表示CaCO3溶液的比重,单位: 吨/米3;(8)、循环生产逻辑功能块根据输入的空余量G判断储存槽的空余量G是否大于本次配制所得CaCO3溶液的总重量W,如果储存槽的空余量G小于本次配制所得CaCO3溶液的总重量W,则循环生产逻辑功能块进入等待状态,搅拌机继续搅拌,直到储存槽的空余量G大于本次配制所得CaCO3溶液的总重量W时,循环生产逻辑功能块命令自动出料开始,开关量输入输出模块输出继电器动作,命令打开出料管上的出料阀,启动出料泵把在配制槽中配制好的CaCO3溶液从出料管输送到储存槽中,同时循环生产逻辑功能块调整模拟量输出模块的输出值,将搅拌机的搅拌转速下调到600rpm以下;(9)、当称重传感器测得配制槽内CaCO3溶液的重量降到4000Kg时,循环生产逻 Radius, unit: m, h represents a height of the storage tank, unit: m, Z represents a storage tank in a conventional solution CaCO3, K represents the specific gravity of the solution CaCO3, unit: t / m 3; (8), the production cycle logical block is greater than the current formulation resulting CaCO3 solution total weight W according ullage G Analyzing storage tank ullage G input, if the ullage storage tank G is less than the current formulation resulting CaCO3 solution on the total weight of W, the cycle production logical block enters a wait state continued stirring mixer until the ullage G reservoir is greater than the current formulation resulting CaCO3 solution on the total weight of W, the cycle of production logical block command automatic discharge begins, digital input and output modules output relay operation, the command to open the valve on the discharge pipe, a feed pump to start the output of the formulated preparation tank CaCO3 solution is piped to the discharge from the storage tank, while the logical block production cycle to adjust the analog output module value, the stirrer reduced to stirring speed 600rpm or less; (9), when the measured load cell preparation obtained solution tank CaCO3 reduced weight 4000Kg, the production cycle logic 辑功能块输出搅拌机变频器关闭命令,搅拌机停止搅拌,出料泵继续工作把配制槽中剩下的CaCO3 溶液从出料管输送到储存槽中,当称重传感器测得配制槽内CaCO3溶液的重量降到OKg时, 开关量输入输出模块命令出料阀关闭,出料泵停止工作,本次CaCO3溶液自动配制结束。 Series block output drive close command stirrer, a stirrer the stirring was stopped, the feed pump continues to operate the rest of the formulation tank CaCO3 solution is piped from the storage tank to the material, when the measured load cell preparation obtained solution tank CaCO3 when the OKG weight down, switch input and output module commands the valve closed, the feed pump is stopped, this solution is automatically prepared CaCO3 end.
2.如权利要求1所述的溶液配制方法,其特征在于所述的循环生产逻辑功能块根据实际生产需要重复上述步骤(2)-(9),以实现CaCO3溶液自动配制系统的多次循环配制。 2. The solution preparation method according to claim 1, wherein said logical block production cycle according to the actual production needs repeating the above steps (2) - (9), in order to achieve the automatic solution dispensing system CaCO3 multiple cycles preparation.
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CN105032238B (en) * 2015-06-19 2017-06-16 山东大学 A kind of controllable moisture content mixes and stirs instrument and its application method
CN105749781A (en) * 2016-03-31 2016-07-13 句容东发生活用品有限公司 Wet tissue stock solution stirring barrel achieving automatic proportioning
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