CN102658975A - High-pressure conveyed continuous powder body quantitative feeding device - Google Patents

High-pressure conveyed continuous powder body quantitative feeding device Download PDF

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Publication number
CN102658975A
CN102658975A CN2012101566652A CN201210156665A CN102658975A CN 102658975 A CN102658975 A CN 102658975A CN 2012101566652 A CN2012101566652 A CN 2012101566652A CN 201210156665 A CN201210156665 A CN 201210156665A CN 102658975 A CN102658975 A CN 102658975A
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pressure
powder
bin
calibration
supply device
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CN2012101566652A
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Chinese (zh)
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徐学志
郭建
韩平
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北京燕山粉研精机有限公司
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Publication of CN102658975A publication Critical patent/CN102658975A/en

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Abstract

The invention provides a high-pressure conveyed continuous powder body quantitative feeding device, which comprises a powder feeding bin, a gate valve, a pneumatic valve, a calibration bin, a weighing sensor, a weighing bin, a rotary material feeder, a Venturi pipe and a programmable logic control (PLC) system, wherein the weighing bin and the rotary material feeder form a weight loss type powder body quantitative feeder; the operation pressure of the powder feeding bin is normal pressure; the operation pressure of the calibration bin is normal pressure during material feeding and is pressure of an air storage tank during material discharging; and the operation pressure of the weighing bin is pressure of the air storage tank. The pressure in the weighing bin is always equal to the pressure in a conveying pipeline, so that the change of the pressure in the conveying pipeline does not influence the feeding and metering precision.

Description

一种高压输送连续粉体定量供给装置 A high-pressure conveying device continuously supplying quantitative powder

技术领域: FIELD:

[0001] 本发明涉及定量供给粉体的领域,尤其涉及一种可用于化工、冶金等行业中的一种高压输送连续粉体定量供给装置。 [0001] The present invention relates to dosing the powder, and more particularly relates to a high-pressure which can be used in chemical, metallurgical industries continuously conveying powder dosing device.

背景技术: Background technique:

[0002] 在化工、冶金等行业中需要高压输送连续计量粉料设备的地方很多,如:澳斯迈特炉、烟化炉、多晶硅反应器等。 [0002] In the chemical, metallurgical and other industries require high pressure delivery apparatus continuously metered powder many places, such as: O Si Maite furnace, fuming furnace, polysilicon reactors and the like. 这些生产线的共同特点是:要求输送压力高、连续计量、定量供给,在输送压力不高(低于0.2MPa)时,可以实现的方法比较多,例如:采用粉体定量供给机+螺旋泵的配置,粉体定量供给机完成常压下的连续计量、定量给料功能,螺旋泵完成粉料输送和锁气功能。 Common feature of these lines are: high pressure delivery requirements, continuous metering, dosing, when the delivery pressure is not high (less than 0.2MPa), the method can be achieved more, for example: quantitative powder feeder using a screw pump + configuration, complete quantitative powder feeder metered continuously at atmospheric pressure, dosing function, complete powder transport screw pump and air lock function. 一旦输送压力高于0. 2MPa,螺旋泵的锁气能力明显降低,漏风严重,导 Once the delivery pressure is higher than 0. 2MPa, airlock decreased capacity of the screw pump, severe leakage, pilot

致上游的粉体定量供给机不能正常工作。 Induced upstream of quantitative powder feeder does not work.

发明内容: SUMMARY:

[0003] 本发明的目的在于设计一种输送压力高于0. 2MPa的、连续计量、定量供给粉体的 [0003] The object of the present invention is to design a delivery pressure higher than 0. 2MPa continuous metering, dosing powder

>JU装直。 > JU loaded straight.

[0004] 本发明提供了一种高压输送连续粉体定量供给装置,包括给粉仓、闸板阀、气动阀、标定仓、称重传感器、称重仓、旋转加料器、文丘里管、PLC控制系统,其中称重仓与旋转加料器构成了失重式粉体定量供给机,所述给粉仓的操作压力为常压,标定仓的操作压力在进料时为常压、在排料时为储气罐的压力,称重仓的操作压力为储气罐的压力。 [0004] The present invention provides a continuous high-pressure delivery powder dosing device, comprising a bunker, gate valve, pneumatic valve, calibration cartridge, weighing sensor, weighing bin, the rotary feeder, venturi, PLC control system, wherein the rotary feeder weigh bin and constitutes a weight loss type powder dosing machine, the toner container to the operating pressure of normal pressure, nominal operating pressure in the feed bins at atmospheric pressure and upon discharge of the reservoir pressure gas tank, said operating pressure is heavily loaded with pressure gas tank.

[0005] 进一步地,所述标定仓由气动阀进行充气加压;所述标定仓由气动阀进行排气减压。 [0005] Further, the calibration cartridge is inflated by the pressurized pneumatic valve; said calibration cartridge is exhausted under reduced pressure by a pneumatic valve.

[0006] 进一步地,所述标定仓内粉料的净重由称重传感器进行检测,称重传感器的输出信号进入到PLC控制系统,以实现加料精度的自动标定;所述称重仓内粉料的净重由称重传感器进行检测,称重传感器的输出信号进入到PLC控制系统。 [0006] Further, the calibration weight the powder cartridge is detected by the load cell, the output signal of the load cell into the PLC control system, in order to achieve feeding accuracy autocalibration; said powder within said heavily loaded NW is detected by the load cell, the output signal of the load cell into the PLC control system.

[0007] 进一步地,所述旋转加料器采用变频器进行调速。 [0007] Furthermore, using the rotary feeder speed inverter.

[0008] 进一步地,所述PLC控制系统(15)包括气动阀开闭自动控制部、流量检测部和流量控制部;所述气动阀自动开闭自动控制根据所述标定仓和称重仓内的粉料净重,自动控制气动阀的打开和关闭;所述流量检测部由称重传感器检测出旋转加料器运转时,称重仓内粉料净重在单位时间内的减少值,此减少值除以单位时间,即为流量值;所述流量控制部由PLC可编程控制器内的PID控制回路构成,其输出操作量值。 [0008] Furthermore, the PLC control system (15) comprises a pneumatic automatic control valve opening and closing section, the flow rate detecting unit and flow control unit; automatic opening and closing of the pneumatic valve according to the automatic control and calibration cartridge within said heavily loaded weight powder, a pneumatic automatic control valve opening and closing; the flow rate detecting unit detects that the operation of the rotary feeder, the said powder are heavy in weight reduction value per unit time by the load cell, to reduce this value by unit time, is the flow rate value; the flow control unit in the PLC by the PID control loop configured programmable controller, the magnitude of its output operation.

[0009] 本发明的特点和有益效果在于:由于称重仓内的压力始终与输送管道内的压力相等,输送管道内的压力变化,不会影响供给和计量精度。 [0009] The features and advantages of the present invention in that: pressure within said heavily loaded because always equal to the pressure in the delivery pipe, pressure changes within the pipeline, will not affect the supply and measurement accuracy.

附图说明: BRIEF DESCRIPTION OF:

[0010] 图I是本发明中一种高压输送失重式粉体定量供给装置的结构图。 [0010] Figure I is a block diagram of the present invention, high pressure delivery of one loss-quantitative powder supply apparatus. 具体实施方式: detailed description:

[0011] 以下结合附图I对本发明的具体实施方式作详细说明。 [0011] I the following detailed description in conjunction with the accompanying drawings of specific embodiments of the present invention. 如图I所示,一种高压输送失重式粉体定量供给装置,包括给粉仓(I)、闸板阀(2)、气动阀(3,5,6,8,9,10)、标定仓(4)、称重传感器(7,11)、称重仓(12)、旋转加料器(13)、文丘里管(14)、PLC控制系统(15)。 As shown in FIG. I A high-pressure delivery loss-quantitative powder supply apparatus, comprising a bunker (I), the gate valve (2), a pneumatic valve (3,5,6,8,9,10), calibration bin (4), the load cell (7,11), the weigh bin (12), a rotary feeder (13), the venturi tube (14), PLC control system (15).

[0012] 称重仓(12 )与旋转加料器(13 )构成了失重式粉体定量供给机,文丘里管(14)有利于粉料顺畅进入气力输送管道,标定仓(4)用于为称重仓(12)补充物料并将称重仓(12)内的高压与给粉仓(I)内的常压隔离开,在工况下,由于气动阀(9)始终关闭,气动阀(10)一直打开,上述称重仓(12)、旋转加料器(13)、文丘里管(14)内部始终处于0. 5MPa工作压力下,所述文丘里管(14)使粉料顺畅的进入到气力输送管道(图中未示出)中。 [0012] The weigh bin (12) with a rotary feeder (13) forms a loss-quantitative powder feeder, the venturi tube (14) is conducive to smooth the powder into the pneumatic conveying pipe, the calibration chamber (4) is called for heavily loaded (12) and the added material in the weigh bin high pressure (12) and to a pressure within the bunker isolated (I) open, in condition, since the pneumatic valve (9) is always closed, the pneumatic valve (10) has been opening said weigh bin (12), a rotary feeder (13), the venturi tube (14) inside is always at 0. 5MPa operating pressure, said venturi tube (14) so ​​that the powder smoothly into the pneumatic conveying duct (not shown). [0013] 标定仓(4)在进料前,气动阀(8)关闭、气动阀(6)打开,当标定仓(4)内的压力与给粉仓(I)的压力平衡后,气动阀(3)自动打开,给粉仓内(I)的粉料在重力的作用下,连续进入到标定仓(4),当标定仓的粉料的净重达到预先设定的上限时,气动阀(3)和气动阀 [0013] Calibration cartridge (4) before the feed air valve (8) closed, the pneumatic valve (6) opens when the pressure inside (4) and to a pressure calibration cartridge bunker (I) balance pneumatic valve (3) automatically opens to the bunker (I) powder under the action of gravity, into the continuous calibration chamber (4), when the calibration weight powder cartridge reaches the upper limit set in advance, pneumatic valve ( 3) and a pneumatic valve

(6)自动关闭,当称重仓内(12)的粉料净重低于预先设定的下限时,气动阀(5)自动打开,压缩空气进入到标定仓(4),对标定仓(4)进行加压,直到标定仓(4)与称重仓(12)的压力达到平衡时,气动阀(8)自动打开,粉料从标定仓(4)进入到称重仓(12),直到标定仓(4)的料位达到下限时,气动阀(5)和(8)自动关闭,气动阀(6)自动打开,重复标定仓(4)的进料过程。 (6) automatically closes when said inner heavily loaded powder weight (12) is below the lower limit set in advance, a pneumatic valve (5) opens automatically, compressed air into the calibration chamber (4) of the calibration chamber (4) pressurizing until the calibration chamber (4) when said heavily loaded with (12) a pressure equilibrium, the pneumatic valve (8) opens automatically, into the powder from the calibration chamber (4) to the weigh bin (12), until the calibration cartridge ( 4) the material level reaches the lower limit, a pneumatic valve (5) and (8) is automatically closed, the pneumatic valve (6) opens automatically repeat the calibration process the feed bin (4). 所述给粉仓(I)的操作压力为常压、标定仓(4)的操作压力在进料时为常压,在排料时为储气罐(16)的压力,称重仓(12)的操作压力为储气罐(16)的压力。 To the bunker (I) an atmospheric pressure operation, the calibration chamber (4) operating at a feed pressure of normal pressure, when the discharge of the gas tank (16) pressure, the weigh bin (12) the operating pressure tank (16) pressure. 标定仓(4)由气动阀(5 )进行充气加压,由气动阀(6 )进行排气减压。 Calibration bin (4) is inflated by a pneumatic pressure valve (5), by a pneumatic pressure exhaust valve (6).

[0014] 所述标定仓(4)内粉料的净重由称重传感器(7)进行检测,称重传感器(7)的输出信号进入到PLC控制系统(15),以实现加料精度的自动标定;称重仓(12)内粉料的净重由称重传感器(11)进行检测,称重传感器(11)的输出信号进入到PLC控制系统(15)。 [0014] The calibration (4) of the powder cartridge is detected by the load weight sensor (7), the output signal of the weighing sensor (7) enters the PLC control system (15), in order to achieve automatic calibration precision feeding ; weigh bin (12) net of the powder is detected by the load cell (11), the output signal of the sensor load (11) enters the PLC control system (15).

[0015] 旋转加料器(13)采用变频器进行调速,PLC控制系统(15)根据称重仓(12)在单位时间内重量的减小值,计算出旋转加料器的下料速度,即测量值,然后将测量值与设定值进行比较,通过PLC控制系统的PID回路,来调节旋转加料器的转速,使测量值与设定值相吻合。 [0015] The rotary feeder (13) using inverter control, PLC control system (15) to reduce the value of the weight per unit time based on the weigh bin (12), the rotary feeder is calculated cutting speed, i.e., measurement value, then the measured value is compared with a set value, the control system through the PLC PID loop to adjust the speed of the rotary feeder, the measurement value coincides with the set value.

[0016] 所述控制系统(15)包括气动阀开闭自动控制部、流量检测部和流量控制部。 [0016] The control system (15) comprises a pneumatic automatic control valve opening and closing section, the flow rate detecting portion and a flow control unit. 其中气动阀自动开闭自动控制根据标定仓(4)和称重仓(12)内的粉料净重,自动控制气动阀(3,5,6,8,9,10)的打开和关闭,流量检测部由称重传感器(11)检测出旋转加料器(13)运转时,称重仓(12)内粉料净重在单位时间内的减少值。 Wherein the automatic opening and closing pneumatic valve automatic control from the calibration chamber (4) and powder weight in the weigh bin (12), a pneumatic automatic control valve (3,5,6,8,9,10) of the opening and closing of the flow rate detecting by the load cell unit (11) detects the rotary feeder (13) during operation, the weigh bin (12) within the powder net reduction value per unit time. 此减少值除以单位时间,即为流量值(PV值)。 This reduction in value is divided by the unit time, is the flow value (PV value). 流量控制部由PLC可编程控制器内的PID控制回路构成,其输出操作量值(MV值),变频器把这个MV值作为频率设定信号,控制旋转加料器的转速,使流量检测部检测的PV值与控制器IXD上设定值(SV值)保持一致。 A PID control unit controls the flow rate in the circuit configuration PLC programmable controller, the magnitude of the output operation (MV value), the drive frequency setting this value as the signal MV, feeder rotation speed control, the flow rate detection unit detects setting the PV value (SV value) is consistent with the value of the controller IXD.

[0017] 本发明的特点和有益效果在于:由于称重仓内的压力始终与输送管道内的压力相等,输送管道内的压力变化,不会影响供给和计量精度;由于标定仓在进料时泄压、可以保证粉料顺畅的从给粉仓进入到标定仓;由于标定仓在排料时充压,可以保证粉料从标定仓顺畅的进入到称重仓;由于标定仓装有称重传感器,可以由PLC程序完成供给精度的在线标定;供料量的多少可通过转数进行精确地无级调节;该装置称重仓与旋转加料器构成了失重式粉体定量供给机,附着的粉不会影响计量精度;因为是完全密封构造,不会产生漏粉和粉尘;由于采用连续检测流量方式,可不间断地进行检测和控制,能够对工艺变化迅速得出反应和高精度;机械和控制的可靠性高,所以故障少而且易维护。 [0017] The features and advantages of the present invention in that: pressure within said heavily loaded because always equal to the pressure in the pipeline, pressure changes within the pipeline, will not affect the supply and metering accuracy; leakage due to the calibration cartridge in the feed pressure can ensure smooth from the powder into the bunker to the calibration cartridge; since the calibration cartridge when the filling pressure discharge, the powder can ensure smooth from the calibration cartridge into the weigh bin; since the cartridge with the load cell calibration, PLC program can be done by feeding line calibration accuracy; how much feed rate can be precisely adjusted by the number of revolutions steplessly; weigh bin of the apparatus and the rotary feeder constitutes a loss-quantitative powder feeder, the powder not adhering Effect metering accuracy; because it is completely sealed configuration, no powder leakage and dust; as a continuous flow detection mode, can be detected and controlled continuously, the reaction can be obtained quickly and accurately to process variations; mechanical and reliable control high, so less failure and easy to maintain. [0018] 上述详细说明是针对本发明的可行实施方式的具体说明,上述实施方式并非用以限制本发明的专利范围,凡未脱离本发明的等效实施或变更,均应包含于本发明的专利范围。 [0018] The detailed description is described in detail for possible embodiment of the present invention, the above-described embodiments are not intended to limit the patent scope of the present invention and which do not departing from the present invention or equivalent embodiments and variations could be included in the present invention. The patentable scope.

Claims (10)

1. ー种高压输送连续粉体定量供给装置,包括给粉仓(I)、闸板阀(2)、气动阀(3,5,6,8,9,10)、标定仓(4)、称重传感器(7,11 )、称重仓(12)、旋转加料器(13)、文丘里管(14)、PLC控制系统(15),其中称重仓(12)与旋转加料器(13)构成了失重式粉体定量供给机,其特征在于,所述给粉仓(I)的操作压カ为常压,标定仓(4)的操作压カ在进料时为常压、在排料时为储气罐(16)的压力,称重仓(12)的操作压カ为储气罐(16)的压力。 1. The continuous high pressure delivery ー species quantitative powder supply apparatus, comprising a bunker (the I), the gate valve (2), a pneumatic valve (3,5,6,8,9,10), the calibration chamber (4), load cells (7,11), the weigh bin (12), a rotary feeder (13), the venturi tube (14), PLC control system (15), wherein the weigh bin (12) with a rotary feeder (13) configured a weight loss type powder dosing machine, characterized in that, to the bunker (I) ka operating pressure is atmospheric pressure, the calibration chamber (4) operating at atmospheric pressure ka is fed, when nesting a pressure tank (16), the weigh bin (12) for the operating pressure ka tank (16) pressure.
2.根据权利要求I所述的供给装置,其特征在于,所述标定仓(4)由气动阀(5)进行充气加压。 2. The feeding apparatus according to claim I, wherein said calibration chamber (4) is inflated by a pneumatic pressure valve (5).
3.根据权利要求I所述的供给装置,其特征在于,所述标定仓(4)由气动阀(6)进行排气减压。 3. A feeding apparatus according to claim I, wherein said calibration chamber (4) is exhausted under reduced pressure by a pneumatic valve (6).
4.根据权利要求I所述的供给装置,其特征在于,所述标定仓(4)内粉料的净重由称重传感器(7)进行检测,称重传感器(7)的输出信号进入到PLC控制系统(15),以实现加料精度的自动标定。 4. The supply device according to claim I, wherein said calibration weight (4) powder cartridge is detected by the load cell (7), the output signal of the load cell (7) enters the PLC the control system (15), feeding to achieve automatic calibration accuracy.
5.根据权利要求I所述的供给装置,其特征在于,所述称重仓(12)内粉料的净重由称重传感器(11)进行检测,称重传感器(11)的输出信号进入到PLC控制系统(15)。 The supply device as claimed in claim I, wherein said powder within said heavily loaded net (12) is detected by the load cell (11), the output signal of the sensor load (11) enters the PLC The control system (15).
6.根据权利要求I所述的供给装置,其特征在于,所述旋转加料器(13)采用变频器进行调速。 6. The supply device as claimed in claim I, wherein said rotary feeder (13) uses the frequency for speed.
7.根据权利要求I所述的供给装置,其特征在于,所述PLC控制系统(15)包括气动阀开闭自动控制部、流量检测部和流量控制部。 7. The supply device as claimed in claim I, wherein said PLC control system (15) comprises a pneumatic automatic control valve opening and closing section, the flow rate detecting portion and a flow control unit.
8.根据权利要求7所述的供给装置,其特征在于,所述气动阀自动开闭自动控制根据所述标定仓(4)和称重仓(12)内的粉料净重,自动控制气动阀(3,5,6,8,9,10)的打开和关闭。 8. The supply device according to claim 7, characterized in that, the pneumatic valve open and close automatically in accordance with the automatic control of the calibration chamber (4) and said powder in heavily loaded net (12), the automatic control pneumatic valve ( 3,5,6,8,9,10) opening and closing.
9.根据权利要求7所述的供给装置,其特征在于,所述流量检测部由称重传感器(11)检测出旋转加料器(13)运转时,称重仓(12)内粉料净重在单位时间内的减少值,此减少值除以单位时间,即为流量值。 9. The supply device according to claim 7, wherein said flow rate detection unit (11) detects the rotation by the load cell feeder (13) during operation, said the heavily loaded (12) in a unit weight of powder reduction in the value of time, this reduction in value is divided by the unit time, is the flow value.
10.根据权利要求7所述的供给装置,其特征在于,所述流量控制部由PLC可编程控制器内的PID控制回路构成,其输出操作量值。 10. The supply device according to claim 7, wherein the flow control unit in the PLC by the PID control loop configured programmable controller, the magnitude of its output operation.
CN2012101566652A 2012-05-18 2012-05-18 High-pressure conveyed continuous powder body quantitative feeding device CN102658975A (en)

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CN102910302A (en) * 2012-09-24 2013-02-06 安徽永成电子机械技术有限公司 Belt conveying feeding electronic ration package scale
CN103604490A (en) * 2013-09-22 2014-02-26 芜湖万向新元环保科技有限公司 Scale adjusting device applied to powder weighing machine
CN103662842A (en) * 2013-12-09 2014-03-26 云南新立有色金属有限公司 Continuous feeding system
CN103662865A (en) * 2013-12-09 2014-03-26 云南新立有色金属有限公司 Continuous feeding system
CN104003198A (en) * 2014-05-21 2014-08-27 丁显奇 Movable flour bin positive pressure flour conveying and supplying and automatic metering device
CN104444383A (en) * 2014-12-02 2015-03-25 新奥科技发展有限公司 High-pressure dense-phase transportation metering method and device
CN104609188A (en) * 2015-01-26 2015-05-13 杭州天丰润滑油有限公司 Automatic feeding system for powder materials on vacuum condition
CN104692127A (en) * 2015-01-23 2015-06-10 新奥科技发展有限公司 Dense-phase conveying control method and system
CN105460619A (en) * 2015-12-21 2016-04-06 新疆天业(集团)有限公司 Method for unloading PVC powder from container
CN106466581A (en) * 2015-08-21 2017-03-01 中昊晨光化工研究院有限公司 A kind of high-temperature powdery materials automatic feeding device and its application

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CN102910302A (en) * 2012-09-24 2013-02-06 安徽永成电子机械技术有限公司 Belt conveying feeding electronic ration package scale
CN103604490A (en) * 2013-09-22 2014-02-26 芜湖万向新元环保科技有限公司 Scale adjusting device applied to powder weighing machine
CN103662865B (en) * 2013-12-09 2016-06-01 云南冶金新立钛业有限公司 Continuous charging system
CN103662842A (en) * 2013-12-09 2014-03-26 云南新立有色金属有限公司 Continuous feeding system
CN103662865A (en) * 2013-12-09 2014-03-26 云南新立有色金属有限公司 Continuous feeding system
CN103662842B (en) * 2013-12-09 2016-06-01 云南冶金新立钛业有限公司 Continuous charging system
CN104003198A (en) * 2014-05-21 2014-08-27 丁显奇 Movable flour bin positive pressure flour conveying and supplying and automatic metering device
CN104003198B (en) * 2014-05-21 2017-03-08 丁显奇 A kind of malleation conveying of mobile flour storehouse supplies powder and self-measuring device
CN104444383A (en) * 2014-12-02 2015-03-25 新奥科技发展有限公司 High-pressure dense-phase transportation metering method and device
CN104692127A (en) * 2015-01-23 2015-06-10 新奥科技发展有限公司 Dense-phase conveying control method and system
CN104609188A (en) * 2015-01-26 2015-05-13 杭州天丰润滑油有限公司 Automatic feeding system for powder materials on vacuum condition
CN106466581A (en) * 2015-08-21 2017-03-01 中昊晨光化工研究院有限公司 A kind of high-temperature powdery materials automatic feeding device and its application
CN106466581B (en) * 2015-08-21 2019-04-19 中昊晨光化工研究院有限公司 A kind of high-temperature powdery materials automatic feeding device and its application
CN105460619A (en) * 2015-12-21 2016-04-06 新疆天业(集团)有限公司 Method for unloading PVC powder from container

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