CN2534006Y - Continuous weighing metering stabilized soil plantmix equipment - Google Patents

Continuous weighing metering stabilized soil plantmix equipment Download PDF

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Publication number
CN2534006Y
CN2534006Y CN 01277734 CN01277734U CN2534006Y CN 2534006 Y CN2534006 Y CN 2534006Y CN 01277734 CN01277734 CN 01277734 CN 01277734 U CN01277734 U CN 01277734U CN 2534006 Y CN2534006 Y CN 2534006Y
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China
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weighing
cement
screw machine
signal
stabilized soil
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CN 01277734
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Chinese (zh)
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林农
黄文景
巫显钟
邓庆阳
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福建南方路面机械有限公司
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Publication of CN2534006Y publication Critical patent/CN2534006Y/en

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Abstract

The utility model relates to a stabilized soil mixing plant for continuous weighing and measuring, which comprises a machine frame, a cement bin, a feeding screw machine, a screw weighing apparatus, a microcomputer control apparatus, a mixing apparatus, a completed product delivery apparatus and a completed product bin, whereinn, the screw weighing apparatus comprises a weighing screw machine and a sensor, a feed inlet of the weighing screw machine is communicated with a discharge port of the feeding screw machine, and a discharge port of the weighing screw machine is used to convey cement to the mixing apparatus. Cement feeding is controlled automatically by the stabilized soil mixing plant for continuously weighing and measuring through the microcomputer control apparatus, and graded accuracy reaches +/-1 %. The utility model not only ensures the quality of stabilized soil, but also avoids the waste of cement to obtain the aim of sving cost.

Description

连续称重计量的稳定土厂拌设备 Continuous weight measurement stability Soil Mixing Plant

一、技术领域本实用新型涉及一种具有水泥称重计量装置的稳定土厂拌设备。 I. Technical Field The present invention relates to a stabilized soil cement mix metering device weighing device.

二、背景技术 Second, the technical background

众所周知,稳定土厂拌设备一般需同时对多种物料进行级配、计量、混合,以生产出成品料,级配均匀性及成品料的质量不但受供料机械、供料方式和物料的物理性能,而且还受气候条件等的影响,其中最关键的问题是水泥供料的计量控制。 It is well known generally stabilized soil mixing plant to simultaneously perform gradation of a variety of materials, metering, mixing, to produce the finished material, uniformity and quality of the finished material gradation not only by the mechanical feed for the physical and material feed mode performance, but also by the impact of climate conditions, the most critical issue is the cement feed metering control. 目前,稳定土厂拌设备的水泥计量一般有称重控制方式如皮带称、减量称,及容积计量方式两种,称重控制方式由于可靠性和准确度不高,构件易损,密闭性差、水泥易飞散或受潮,现已较少使用;国内生产的稳定土厂拌设备大多采用容积计量方法对水泥进行计量,如通过控制供料螺旋或旋叶阀的转速,来控制水泥的流量。 At present, cement stabilized soil mix plant metering device generally weighing control means such as belt, said reduction of said volume measurement and two ways, due to the reliability and control the weighing accuracy is not high, members vulnerability, poor airtight , cement or moisture easily scattering, has been used less; domestic production of stabilized soil mix plant using volumetric metering equipment mostly cement metering method, such as by controlling the rotational speed or the feed spiral rotary vane valve, to control the flow of cement. 国外设备也有部分采用了容积计量技术,如知名度较高的澳大利亚ARAN公司生产的设备,采用的是槽形挡边皮带供料,它是通过控制单位时间内的供料体积来达到控制供料重量的效果,其实质也是容积计量方法。 There are some foreign equipment using volume measurement technology, such as higher visibility ARAN Australian company's equipment, the feed trough rib belt, which is obtained by controlling the feed volume per unit of time to achieve control of the feed by weight effect, and its essence is the volume measurement methods. 在容积计量状态下,当供料异常时如水泥仓缺料、水泥自流,设备不能及时作出反应,容易导致成品料不均匀,影响了质量。 In the volumetric metering state, when the feeding abnormalities, such as lack of material cement silo, concrete gravity, the device can not respond in time, easily lead to uneven finished material, affect the quality. 同时,由于容积计量无法精确控制水泥的供给量,造成了水泥这种价格较高的物料的浪费,增加了成本。 At the same time, due to the volume measurement can not precisely control the supply of cement, resulting in a waste of such a high price of cement materials, increasing the cost.

三、发明内容 III. SUMMARY OF THE INVENTION

本实用新型的目的是设计一种具有水泥连续称重计量功能的稳定土厂拌设备。 The object of the present invention is to design a cement having a continuous weight measurement function stabilized soil mixing plant.

本实用新型设计的连续称重计量的稳定土厂拌设备,包括机架、水泥料仓、供料螺旋机、搅拌装置、成品料输送装置及成品料仓,供料螺旋机由供料电机驱动的用于输送水泥;为实现连续称重计量功能,该设备还设有螺旋称重装置和微机控制装置,螺旋称重装置包括内部设有螺旋的称重螺旋机,用于测量称重螺旋机重量变化并将其转换为电信号的传感器;称重螺旋机的进料口与供料螺旋机的出料口连通,螺旋由输送电机驱动、用于传送水泥料,称重螺旋机的出料口用于将水泥送入搅拌装置;供料电机及传感器均与微机控制装置电连接,微机控制装置包括以可编程控制器为核心的控制电路。 Continuous weight measurement of the present invention designed stabilized soil mixing plant, comprising a frame, cement silo, feed screw machine, stirring apparatus, finished and finished products silo feeder means, fed by the feed screw machine motor drive for conveying cement; is a continuous weight measurement function, the apparatus is also provided with a helical weighing apparatus and computer control means comprises an internal helical weighing means weighing a spiral screw machine, for measuring a weighing screw conveyor weight change and converts it into an electric signal; spiral weighing machine feed inlet and the discharge port of the screw machine communication, the coil driving the conveying motor for conveying cement material, weighing the feed screw machine opening for feeding the cement mixing device; feed motor and sensors are electrically connected to the microcomputer controlling means, microcomputer control means comprises a control circuit to the programmable controller as the core.

该设备增设了螺旋称重装置和微机控制装置,因此能自动、连续地对水泥供料进行计量、控制,使级配的准确性达到±1%的量级,不仅保证了稳定土的质量,也避免水泥的浪费,达到节约成本的目的。 The addition of the helical device weighing device and computer control apparatus, it is possible to automatically and continuously metered cement feed, control the accuracy of the gradation reaches the order of ± 1%, not only to ensure the quality and stability of the soil, but also to avoid the waste of cement, achieve cost savings. 同时,由于称重螺旋机密封性很好,克服了开放式皮带称装置的缺点,具有较高的可靠性和实用性。 Meanwhile, since the good sealing property weighing screw machine, overcomes the disadvantages of the open belt, said apparatus having a high reliability and availability.

四、附图说明 IV BRIEF DESCRIPTION

下面结合附图和实施例对本实用新型作进一步详细说明。 The present invention as described in more detail below in conjunction with the accompanying drawings and embodiments.

图1是本实用新型连续称重计量的稳定土厂拌设备的结构图。 FIG 1 is a continuous weighing of the present invention is a configuration diagram of the measurement of the stabilized soil mixing plant.

图2是图1中螺旋称重装置的结构图。 FIG 2 is a configuration diagram of the helical weighing device 1 in FIG.

图3是微机控制装置的电路原理图。 FIG 3 is a schematic circuit diagram of a microcomputer of the control apparatus.

五、具体实施方式 V. DETAILED DESCRIPTION

如图1所示,连续称重计量的稳定土厂拌设备,包括机架1、水泥料仓2、供料螺旋机3、搅拌装置4、成品料输送机5及成品料仓6,该设备中还设有螺旋称重装置和微机控制装置7。 1, a continuous weight measurement of the stabilized soil mixing plant, comprising a frame 1, the cement silo 2, feed screw machine 3, a stirrer 4, 5 and conveyor finished material storage bin 6, the apparatus further provided with a helical weighing means and the control means 7 the microcomputer. 水泥料仓2用于装水泥料,料仓的上、下限位置各装有一个阻旋式料位计,以监测仓内的水泥量。 Cement cement silo 2 for containing the material, the lower limit position of each silo with a rotary resistance level meter to monitor the amount of cement in the cartridge. 供料螺旋机3的进料口与水泥料仓2的出料口相连,供料螺旋机3内设有供料螺旋,供料螺旋由供料电机17带动工作,传送水泥料,电机采用变频技术进行无级调速以控制供给量。 Feed screw machine feed opening 3 and the cement silo is connected to the discharge port 2 of the feed screw machine 3 equipped with a helical feed, fed from the feeding coil motor 17 to drive the work, conveying the cement material, the motor with frequency technology to control the supply amount of variable speed. 供料螺旋机3与水平面成一倾角,且在出口处设有一段缓冲区19,可有效地防止水泥的自流,确保流量稳定。 Feed screw conveyor 3 having an inclination to the horizontal, and the buffer section 19 is provided at the outlet, gravity can be effectively prevented cement, to ensure flow stability. 根据供料需要,合理选择供料螺旋的螺距及叶片的尺寸,以保证连续稳定供料和能够对微机控制装置7发来的信号及时进行响应。 The feeding needs, a reasonable choice of the size and pitch of the spiral feed blade, in order to ensure continuous and stable feeding and timely response signal sent by the means 7 can be controlled microcomputer.

如图2所示,螺旋称重装置包括称重螺旋机8和拉式传感器9,称重螺旋机8为内部设有螺旋的管筒式结构,为减轻称重螺旋机8的自重和美观,筒体选用不锈钢。 2, the weighing means comprises a helical coil weighing machine 8 and the pull sensor 9, the weighing machine 8 is internally provided with a helical tube cartridge helical structure, to reduce the weight of the weighing machine and aesthetic spiral 8, cylinder made of stainless steel. 称重螺旋机8的筒体上设有进料口10和出料口11。 The barrel is provided with a feed screw machine weighing 8 port 10 and an outlet 11. 进料口10与供料螺旋机的出料口连通,螺旋由输送电机12驱动、用于传送水泥料,出料口11用于将水泥送入搅拌装置4。 Feed port 10 communicates with the feed screw machine outfeed, conveyor helix driven by a motor 12, for transmitting the cement material, the discharge port 11 for feeding cement mixing device 4. 称重螺旋机8螺旋的外径、螺距,应与供料螺旋配合选择,以保证连续稳定供料。 Weighing screw machine 8 the outer diameter of the spiral, the pitch, should be selected feed with the coil, in order to ensure continuous and stable feeding. 拉式传感器9通过测量称重螺旋机8的重量变化,可对连续流动的水泥的瞬时重量变化进行检测,并将这种变化转换为电信号后,通过导线送至微机控制装置7。 Pull sensor 9 by measuring the weight change of the weighing screw machine 8 can be a continuous flow of transient changes in weight of cement detects this change and converts to electrical signals, the control device 7 via a wire to the computer.

微机控制装置7的工作原理如图3所示,传感器9送来的电信号由变送器13进行变送放大,再由模数转换电路14转换为数字信号,数字信号送入可编程控制器PLC进行运算处理,当实际流量大于设定值时,可编程控制器PLC输出信号减小,由数模转换电路15转换为模拟信号,通过变频器16输出频率信号,使供料电机17转速下降;反之,当实际流量小于设定值时,可编程控制器PLC输出的信号增大,使供料电机17转速加大,来达到控制物料流量的目的。 Working principle of the microcomputer control unit 7 shown in Figure 3, the sensor 9 is sent to the electrical signal transmission by the transmitter 13 amplified, and then converted by the analog to digital converter 14 into a digital signal, a digital signal into the programmable controller PLC performs arithmetic processing, when the actual flow rate is greater than the set value, the programmable controller PLC output signal is reduced by the digital-analog conversion circuit 15 into an analog signal, the output frequency signal through the inverter 16, so that the rotational speed of the feed motor 17 drops ; conversely, when the actual flow rate is less than the set value, the signal output from the programmable logic controller PLC is increased, so that the feed motor 17 to increase the speed to achieve control of the material flow. 工业计算机18对整个操作过程进行可视化显示、控制,同时还具有打印输出、数据统计、调试及故障处理等多项功能。 Industrial Computer 18 throughout operation of the visual display, control, and also has a print output, statistics, debugging and troubleshooting and many other features.

Claims (3)

1.连续称重计量的稳定土厂拌设备,包括机架、水泥料仓、供料螺旋机、搅拌装置、成品料输送装置及成品料仓,供料螺旋机由供料电机驱动的用于输送水泥,其特征在于:还设有螺旋称重装置和微机控制装置,螺旋称重装置包括内部设有螺旋的称重螺旋机,用于测量称重螺旋机重量变化并将其转换为电信号的传感器;称重螺旋机的进料口与供料螺旋机的出料口连通,螺旋由输送电机驱动、用于传送水泥料,称重螺旋机的出料口用于将水泥送入搅拌装置;供料电机及传感器均与微机控制装置电连接,微机控制装置包括以可编程控制器为核心的控制电路。 1. Continuous weighing measurement stabilized soil mixing plant, comprising a frame, cement silo, feed screw machine, stirring apparatus, finished and finished products silo feeder means, fed by the feed screw machine for a motor-driven transporting cement, comprising: computer control means and further provided with a helical weighing device, the weighing device comprises an internal helical coil is provided with a helical weighing machine, the weighing screw conveyor for measuring weight change into an electric signal and sensors; spiral weighing machine feed inlet and the discharge port screw machine communication, the discharge port by the spiral conveyor drive motor, for conveying cement material, the helical weighing machine for feeding cement mixing device ; feed motor and sensor means are electrically connected to the control microcomputer, the microcomputer control means comprises a control circuit to the programmable controller as the core.
2.根据权利要求1所述的连续称重计量的稳定土厂拌设备,其特征在于:供料螺旋机与水平面成一倾角,且在出口处设有一段缓冲区。 The continuous measurement of the weighing of a stabilized soil mixing plant as claimed in claim, wherein: the feed screw machine at an angle to the horizontal plane, and is provided at the outlet section of the buffer.
3.根据权利要求1所述的连续称重计量的稳定土厂拌设备,其特征在于:控制电路包括与传感器电连接、用于对传感器的输出信号进行变送放大的变送器,与变送器电连接、用于将变送器输出的模拟信号转换为数字信号的模数转换电路,与模数转换电路电连接、用于运算处理并输出相应的数字信号的可编程控制器,与可编程控制器电连接、用于将可编程控制器输出的数字信号转换为模拟信号的数模转换电路,与数模转换电路、供料电机分别电连接、用于将数模转换电路输出的模拟信号转换为频率信号及通过该频率信号控制供料电机转速的变频器,及与可编程控制器连接、用于系统控制的工业计算机。 The continuous measurement of the weighing of a stabilized soil mixing plant as claimed in claim, wherein: the control circuit comprises a sensor electrically connected to, a sensor output signal amplifying transmitter performs transmission, and variable electrically connected to the transmitter, the transmitter for outputting an analog signal into a digital signal analog to digital conversion circuit, the circuit is electrically connected, and arithmetic processing for the programmable controller outputs a corresponding digital signal and analog to digital conversion, and the programmable controller is electrically connected, for converting the digital signal output from the programmable controller to digital to analog conversion circuit analog signals, and digital to analog conversion circuit, electrically connected to the feed motor, respectively, for digital to analog conversion circuit output It converts an analog signal into a frequency signal and a frequency converter feeding the motor speed by the frequency control signal, and connected to the programmable controller, a computer system for industrial control.
CN 01277734 2001-12-18 2001-12-18 Continuous weighing metering stabilized soil plantmix equipment CN2534006Y (en)

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101121283B (en) 2006-08-09 2010-04-21 沈阳大承道路工程有限公司 Production method of stirring-soil for treating soft territory
CN101554753B (en) 2009-04-14 2010-12-08 长安大学 Cement supply online calibration system of stable soil plant mix equipment
CN101642940B (en) 2009-08-26 2011-04-06 成都市新筑路桥机械股份有限公司 Method for automatically controlling unloading system of finished product storehouse of stabilized soil mixing station
CN103056971A (en) * 2013-01-16 2013-04-24 辽宁海诺建设机械集团有限公司 High-precision additive metering screw conveyor
CN103419283A (en) * 2013-08-22 2013-12-04 吉林省公路机械有限公司 Continuous-type cement metering device
CN103707417A (en) * 2013-12-14 2014-04-09 郑州市长城机器制造有限公司 Cement mixture production line
CN103707416A (en) * 2013-12-14 2014-04-09 郑州市长城机器制造有限公司 Quantitative powder loading system
CN103707418A (en) * 2013-12-14 2014-04-09 郑州市长城机器制造有限公司 Powder loading transition bin
CN104609212A (en) * 2014-12-08 2015-05-13 徐州徐工筑路机械有限公司 Powder residual amount monitoring method and device
CN104760136A (en) * 2014-03-11 2015-07-08 中国水利水电科学研究院 Mixing device for continuously mixing gelatinized sand gravel and use method thereof

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101121283B (en) 2006-08-09 2010-04-21 沈阳大承道路工程有限公司 Production method of stirring-soil for treating soft territory
CN101554753B (en) 2009-04-14 2010-12-08 长安大学 Cement supply online calibration system of stable soil plant mix equipment
CN101642940B (en) 2009-08-26 2011-04-06 成都市新筑路桥机械股份有限公司 Method for automatically controlling unloading system of finished product storehouse of stabilized soil mixing station
CN103056971A (en) * 2013-01-16 2013-04-24 辽宁海诺建设机械集团有限公司 High-precision additive metering screw conveyor
CN103056971B (en) * 2013-01-16 2015-02-18 辽宁海诺建设机械集团有限公司 High-precision additive metering screw conveyor
CN103419283A (en) * 2013-08-22 2013-12-04 吉林省公路机械有限公司 Continuous-type cement metering device
CN103707417A (en) * 2013-12-14 2014-04-09 郑州市长城机器制造有限公司 Cement mixture production line
CN103707416A (en) * 2013-12-14 2014-04-09 郑州市长城机器制造有限公司 Quantitative powder loading system
CN103707418A (en) * 2013-12-14 2014-04-09 郑州市长城机器制造有限公司 Powder loading transition bin
CN104760136A (en) * 2014-03-11 2015-07-08 中国水利水电科学研究院 Mixing device for continuously mixing gelatinized sand gravel and use method thereof
CN104609212A (en) * 2014-12-08 2015-05-13 徐州徐工筑路机械有限公司 Powder residual amount monitoring method and device

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