CN202289812U - Weightless measuring micro-feeder - Google Patents

Weightless measuring micro-feeder Download PDF

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Publication number
CN202289812U
CN202289812U CN 201120266112 CN201120266112U CN202289812U CN 202289812 U CN202289812 U CN 202289812U CN 201120266112 CN201120266112 CN 201120266112 CN 201120266112 U CN201120266112 U CN 201120266112U CN 202289812 U CN202289812 U CN 202289812U
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China
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feeder
activated carbon
screw feeder
controller
speed
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CN 201120266112
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Chinese (zh)
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俞勇梅
李咸伟
杨建平
齐伟
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宝山钢铁股份有限公司
无锡雪浪环境科技股份有限公司
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Abstract

The utility mode relates to a feeder, in particular to a weightless measuring micro-feeder used for an activated carbon spraying system. The weightless measuring micro-feeder comprises an activated carbon feeding cabin (4), a speed regulating screw feeder (6), a weighing sensor (7), a screw wind-locking feeder (8), an activated carbon powder air current conveying pipeline (9) and a controller. The activated carbon feeding cabin is located above the speed regulating screw feeder, an activated carbon feeding cabin discharging port (5) at the bottom of the activated carbon feeding cabin is connected with the speed regulating screw feeder, the weighing sensor is arranged below the activated carbon feeding cabin and the speed regulating screw feeder, the speed regulating screw feed is connected with the screw wind-locking feeder to be connected with the activated carbon powder air current conveying channel through a pipeline, the controller controls the feeding speed of the speed regulating screw feeder through a frequency converter, and the weighing sensor is in output connection with the controller. The weightless measuring micro-feeder determines feeding quantity by directly weighing weightless quantity of activated carbon and achieves accurate measurement of feeding of activated carbon powder.

Description

失重式计量微给料机 Micro weight loss feeder metering

技术领域 FIELD

[0001] 本实用新型涉及一种给料机,尤其涉及一种用于活性炭喷吹系统的失重式计量微给料机。 [0001] The present invention relates to a feeder, in particular, it relates to one kind of activated carbon weight loss metering system for a micro-injection feeder.

背景技术 Background technique

[0002] 钢铁厂烧结工序产生的烧结烟气中除一氧化碳、二氧化碳、氮氧化物、二氧化硫、 焦油和各种粉尘等以外,还含有微量的剧毒物质一二噁英和重金属。 [0002] Sintering steel plant flue gas produced in the sintering step in addition to carbon monoxide, carbon dioxide, nitrogen oxides, sulfur dioxide, dust and all kinds of tar, further comprising a highly toxic dioxins and traces of heavy metals. 二噁英(Dioxin)是一种无色无味的剧毒物质,是已知的一级致癌物,可导致胎儿畸形等;此外,二噁英还易溶于脂肪,难以降解,属于持久性有机污染物(POPs),一旦进入人体,极难排出,累计到一定程度,可直接导致死亡。 Dioxin (Dioxin) is a colorless, odorless highly toxic, is a known carcinogen, can cause fetal malformation; in addition, dioxins are also soluble in fat, it is difficult to degrade, are persistent organic pollutants (POPs), enters the body, is extremely difficult to discharge, accumulated to a certain extent, can directly lead to death. 重金属,特别是汞、镉、铅、铬等均具有显著的生物毒性,如果进入自然界(水体或土壤中),可形成各种无机或有机的络合物或螯合物,一旦人类食用了被重金属污染的食物,这些有毒物质就会在人体内富集,危害身体健康,甚至诱发癌症。 Heavy metals, in particular mercury, cadmium, lead, chromium etc. has significant toxicity, if access nature (soil or water) may be formed of various inorganic or organic complexes or chelates, once being human consumption heavy metal contaminated food, these toxic substances in the human body will be enriched hazardous to their health, and even induce cancer. 如人们熟知的水俣病,其罪魁祸首就是重金属汞。 As well known Minamata disease, which is the culprit of Hg.

[0003] 由上所述,对烧结烟气进行脱二噁英及脱重金属处理是十分必要的。 [0003], the sintered by the flue gas is necessary to de-dioxins and heavy metals removal process. 已有的相关研究表明:向烧结烟气中喷吹活性炭,可有效降低其中二噁英和重金属浓度。 Existing studies indicate that: blowing activated carbon into the flue gas sintering, which can effectively reduce the concentration of heavy metals and dioxins. 一般而言,活性炭喷吹系统由上料装置、活性炭储仓、计量给料装置及喷射装置等组成,其中计量给料装置是活性炭喷吹系统的关键组成部分。 In general, activated carbon injection system by the feeding means, activated magazine, dosing equipment and the injection devices and other components, wherein the dosing equipment is a key component of the activated carbon injection system.

[0004] 理论分析及试验研究均表明,在烧结烟气发生量一定的条件下,存在合理的活性炭喷吹量。 [0004] Experimental and theoretical studies indicate that, at the sintering conditions of flue gas generation amount constant, there is a reasonable amount of activated carbon injection. 如果喷吹量偏小,达不到有效脱除二噁英和重金属的目的;而喷吹量过大,不仅造成活性炭物料的浪费,而且还会提高烟气电除尘系统的负荷(喷吹到烟气中的活性炭通过电除尘系统回收,还可用于其它冶金工序),导致排放增加、电耗增大和设备维护成本上升,故能精确控制活性炭喷吹量的计量给料装置在整个喷吹系统中显得尤为重要。 If the injection amount is small, less than the effective removal of dioxins and heavy metals purposes; and blowing excessive, not only wasteful of activated carbon material, but it also increases the load flue ESP system (blowing of smoke activated carbon gas recovered by ESP system, but also for other metallurgical process), resulting in increased emissions and increased power consumption and increased maintenance costs, it can precisely control the injection amount of the activated carbon dosing equipment throughout the injection system It is particularly important.

[0005] 现有技术中,活性炭计量给料装置多采用齿槽式结构,如齿槽式圆盘给料机。 [0005] In the prior art, the activated carbon dosing equipment to use more alveolar structure, such as alveolar type disc feeder. 该给料机的圆盘由变频电机驱动,圆盘上均匀分布有齿槽,由于每个齿槽的容积一定,故可通过电机控制圆盘转速,对活性炭给料量进行调节。 The disc to feeder driven by an inverter motor, cogging uniformly distributed on the disk, since the volume of each gullet constant, so that the disc rotation speed can be controlled by a motor, to adjust the quantity of activated carbon. 此种结构的给料装置结构简单,但其本质上是通过计量活性炭体积确定给料量。 Simple structure of the feed device of this structure, but it is essentially determined by the quantity of activated carbon to volumetric metering. 另外,中国专利200910196310. 4公开了一种粉末活性炭自动投加系统,该发明提出的粉末活性炭自动投加系统中包含“精确粉体给料机”,其计量原理是体积式计量,通过给料机托盘的往复运动将粉体物料不断向前抛送,实现粉体物料的输送和计量。 In addition, China Patent No. 200910196310.4 discloses an automatic dosing system powdered activated carbon, powdered activated carbon of the invention is proposed an automatic dosing system with "precision powder feeder" which is metered volumetric metering principle, by feeding reciprocating machine tray of powder material will continue to move forward throwing realize delivery and metering of powder materials. 上述二个专利公开的技术的计量原理是体积式计量,适用于给料量大的情况。 Measurement principle of the above two patents disclosed metering technology is the volume, appropriate for a case where a large quantity. 如果活性炭性质或种类发生变化,或是在给料过程中发生料流不畅或料流不均匀的情况,尤其是在活性炭给料量小且粒度很细的情况下,那么就极有可能对活性炭粉的给料精度产生严重影响。 If the nature or kind of activated carbon is changed, or the occurrence of poor stream stream or unevenness in the feed process, especially in a small quantity of activated carbon and the case where very fine particle size, it is very likely to serious impact the accuracy of dosing of activated carbon powder.

发明内容 SUMMARY

[0006] 本实用新型的目的在于提供一种失重式计量微给料机,该给料机通过直接称量活性炭的失重量来确定给料量,实现活性炭粉末给料的精确计量。 [0006] The present invention aims to provide accurate metering of weightlessness micro metering feeder, the feeder feeding amount is determined by directly weighing the weight loss of activated carbon, activated carbon powder to achieve feedstock. [0007] 为了实现上述目的,本实用新型采用如下技术方案: [0007] To achieve the above object, the present invention adopts the following technical solution:

[0008] 一种失重式计量微给料机,包括活性炭给料仓、调速螺旋给料机、称重传感器、活性炭粉气流输送管道和控制器,活性炭给料仓位于调速螺旋给料机上方,活性炭给料仓底部的活性炭给料仓排料口与调速螺旋给料机相连,活性炭给料仓和调速螺旋给料机下方设置有称重传感器,调速螺旋给料机经管路连接于活性炭粉气流输送管道,控制器经变频器控制调速螺旋给料机的给料速度,称重传感器输出接控制器。 [0008] A weight loss of micro metering feeder, comprising a screw feeder speed to the activated bin, screw feeder speed, load cells, and activated carbon powder delivery conduit airflow controller, activated carbon is located in a silo above, activated charcoal to the bottom of the silo to the silo discharge opening speed screw feeder connected to the activated carbon and the silo to a speed below the spiral feeder is provided with a weighing sensor, speed screw feeder via line powdered activated carbon is connected to the pneumatic conveying duct, the drive controller via the speed control coil feeding speed of the feeder, then the output of the load cell controller.

[0009] 所述调速螺旋给料机与活性炭粉气流输送管道之间设置有螺旋锁风给料机,控制器经变频器控制螺旋锁风给料机的给料速度。 A spiral air lock feeder, the controller controls the drive coil via the air lock feeder to the feed rate of between [0009] the screw feeder and the speed of activated carbon powder stream pipeline.

[0010] 所述调速螺旋给料机与螺旋锁风给料机之间采用喉箍式软连接。 [0010] The speed control coil using hose clamps soft connection between the helical feeder air lock feeder.

[0011] 所述活性炭给料仓上方有活性炭储料仓,活性炭储料仓出口与活性炭给料仓入料口之间采用喉箍式软连接。 [0011] The activated carbon to activated carbon storage bins above the silo, the outlet of the activated carbon activated storage bin to bin using the hose clamp is connected between the soft spout.

[0012] 本实用新型通过直接称量活性炭的失重量来确定给料量,实现活性炭粉末给料的精确计量,而不是依靠计量活性炭的给料体积,从而克服了现有的齿槽式结构给料机或其它结构给料机的不足;并且本实用新型由PLC自动控制,活性炭粉末最大输送能力达到80kg/h,计量误差可控制在±1. 5%以内,完全能满足活性炭喷吹系统对称量精度的要求。 [0012] present invention by directly weighing the weight loss to determine the quantity of activated carbon to achieve precise metering of the feed of activated carbon powder, activated carbon, rather than relying on the measurement of the feed volume, thereby overcoming the conventional structure to a cogging feeder or other structural deficiencies of the feeder; the present invention and controlled by PLC, the maximum transmission capacity of activated carbon powder 80kg / h, measurement error can be controlled within 1 5% ±, activated carbon injection system can meet symmetrical. the amount of accuracy.

附图说明 BRIEF DESCRIPTION

[0013] 图I为本实用新型失重式计量微给料机工作原理图; [0013] Figure I of the present invention, micro weight loss feeder metering operating principle;

[0014] 图2为本实用新型失重式计量微给料机结构示意图。 [0014] FIG. 2 weightlessness present invention metering feeder structure to the micro schematic.

[0015] 图中:I活性炭储料仓出口,2喉箍式软连接,3活性炭给料仓入料口,4活性炭给料仓,5活性炭给料仓排料口,6调速螺旋给料机,7称重传感器,8螺旋锁风给料机,9活性炭粉 [0015] FIG Where: I activated storage bin outlet, hose clamps soft connection 2, 3 feed inlet hopper to the activated carbon, the activated carbon to the silo 4, 5 to the activated bin discharge opening, speed screw feeder 6 machine, the load cell 7, 8 spiral air lock feeder, activated carbon powder 9

气流输送管道。 Air conveyor conduit.

具体实施方式 detailed description

[0016] 下面结合附图和具体实施例对本实用新型作进一步说明。 Drawings and examples further illustrate particular embodiments of the present invention for the [0016] following binding.

[0017] 参见图2,一种失重式计量微给料机,包括活性炭给料仓4、调速螺旋给料机6、称重传感器7、螺旋锁风给料机8、活性炭粉气流输送管道9和控制器,活性炭给料仓4位于调速螺旋给料机6上方,活性炭给料仓4底部的活性炭给料仓排料口5与调速螺旋给料机6 相连,活性炭给料仓4和调速螺旋给料机6下方设置有称重传感器7,调速螺旋给料机6输出接螺旋锁风给料机8,螺旋锁风给料机8输出经管路连接于活性炭粉气流输送管道9,调速螺旋给料机6与螺旋锁风给料机8之间采用喉箍式软连接2。 [0017] Referring to Figure 2, weightlessness micro metering feeder, comprising a hopper 4 to pipe charcoal, speed screw feeder 6, the load cell 7, the helical air lock feeder 8, the air conveyor of activated carbon powder and a controller 9, a hopper 4 located above the activated carbon speed screw feeder 6, activated charcoal to the bottom of the bin discharge port 4 and 5 speed screw feeder connected to the hopper 6, the activated carbon to the silo 4 and a lower speed screw feeder 6 is provided with a load cell 7, 6 speed screw feeder connected to the coil output air lock feeder 8, the helical air lock feeder via line 8 is connected to the output air conveyor of activated carbon powder conduit 9, speed screw feeder 6 and the helical air lock feeder using soft hose clamp connection 8 between the two. 控制器经变频器控制调速螺旋给料机6和螺旋锁风给料机8的给料速度,称重传感器7输出接控制器。 The drive controller is controlling speed screw feeder 6 and the spiral feeder air lock 8 of the feed rate, the load cell 7 connected to the output of the controller. 设置螺旋锁风给料机8的目的是为了消除输送管道中压缩空气对称重传感器7的影响,使称重传感器7测量精度更高。 Set spiral feeder air lock object 8 is to eliminate the influence of the compressed air delivery duct 7 of the load cell, the load cell 7 so that more accurate measurement.

[0018] 所述活性炭给料仓4上方有活性炭储料仓,活性炭储料仓出口I与活性炭给料仓入料口3之间采用喉箍式软连接2。 [0018] The activated carbon to activated carbon over bin storage bin 4, I activated storage bin outlet hose clamp employed with the activated carbon 2 soft connection between the hopper 3 to the discharge port. 所述喉箍式软连接2主要由硅胶布(纤维布涂覆单层硅胶)及两端各一个用于固定硅胶布的金属喉箍组成,喉箍式软连接2作用是将活性炭给料仓4 (以及仓中的活性炭粉)和调速螺旋给料机6从整个给料系统中“分割”出来,从而称重传感器7能准确称量出活性炭的给料速率(即单位时间的失重量)。 The connection hose clamps soft metal hose clamps cloth mainly composed of silica (silica gel fiber cloth coated with a single layer) and for fixing each end of a cloth composed of silicone, soft hose clamps 2 are connected to the role of activated carbon silo 4 (as well as activated carbon powder bin) and the speed from the screw feeder 6 to feed the entire system "split" out, so that the load cell 7 can accurately weighed activated carbon feed rate (i.e., weight loss per unit time ). [0019] 本实用新型失重式计量微给料机的控制方式是:参见图1,PLC向控制器发出给料运行指令,与控制器相连的变频器控制调速螺旋给料机6及螺旋锁风给料机8的给料速度; 同时称重传感器7在线测量活性炭给料仓4 (包括其中的活性炭粉末)和调速螺旋给料机6的总失重量,并将电信号输出给控制器,控制器将接受的信号与预先设定的活性炭喷吹值比较,并通过变频器调整调速螺旋给料机6和螺旋锁风给料机8给料速度,从而达到精确定量给料的目的。 [0019] The present invention weightlessness to control micro-metering feeder is: Referring to Figure 1, PLC operation command issued fed to the controller, the controller coupled to the drive and control speed screw feeder 6 and spinlock wind feeder feed rate of 8; 7 line measuring load cell while the activated carbon to bin 4 (which comprises activated carbon powder) and the total speed screw feeder 6 weight loss, and outputs the electrical signal to the controller , the controller comparing the received signal with a predetermined value of the activated carbon injection, and adjustment of speed by the drive screw feeder 6 and the coil 8 air lock feeder feed rate, so as to achieve accurate dosing . 在给料运行中,当给料仓4中活性炭料线达到低位设定量时,PLC将自动启动卸料阀向给料仓4给料,上述过程自动循环运行,故而可实现连续给料。 In the feeding operation, when the feed line to the activated bin 4 reaches the low set amount, PLC will automatically start to the silo discharge valve 4 to feed the automatic cycle during operation, and therefore can achieve continuous feeding. PLC中的参数值可通过人机界面设置。 Parameter values ​​in the PLC may be provided by the man-machine interface.

[0020] 经试验表明,采用本实用新型失重式计量微给料机的活性炭喷吹系统,活性炭粉末最大输送能力达到80kg/h,计量误差可控制在±1. 5%以内,完全满足活性炭喷吹系统对称量精度的要求。 [0020] The test showed that the weight loss of the present invention to a micro metering feeder activated carbon injection system, the maximum transmission capacity of activated carbon powder 80kg / h, measurement error can be controlled within ± 1. 5%, jet activated to fully meet the system of claim blow weighing accuracy.

[0021] 以上仅为本实用新型的较佳实施例而已,并非用于限定本实用新型的保护范围, 因此,凡在本实用新型的精神和原则之内所作的任何修改、等同替换、改进等,均应包含在本实用新型的保护范围之内。 [0021] The above description is only preferred embodiments of the present invention embodiment and not intended to limit the scope of protection of the present invention, therefore, any modifications can be made within the spirit and principle of the invention, equivalent substitutions, improvements etc. It should be included within the scope of protection of the present invention.

Claims (4)

1. 一种失重式计量微给料机,其特征是:包括活性炭给料仓(4)、调速螺旋给料机(6)、 称重传感器(7)、活性炭粉气流输送管道(9)和控制器,活性炭给料仓(4)位于调速螺旋给料机(6 )上方,活性炭给料仓(4)底部的活性炭给料仓排料口( 5 )与调速螺旋给料机(6 )相连,活性炭给料仓(4)和调速螺旋给料机(6)下方设置有称重传感器(7),调速螺旋给料机(6)经管路连接于活性炭粉气流输送管道(9),控制器经变频器控制调速螺旋给料机(6)的给料速度,称重传感器(7 )输出接控制器。 A loss-in micro metering feeder, characterized in that: include activated carbon feed bunker (4), speed screw feeder (6), the load cell (7), active carbon powder pneumatic conveying duct (9) and a controller, activated carbon feed bunker (4) is located in speed screw feeder (6) above, activated charcoal feed bunker (4) to the bottom of the hopper discharge opening (5) and speed screw feeder ( 6) connected to the activated bin (4) and the speed screw feeder (6) provided below the load cell (7), speed screw feeder (6) via a line connected to the gas flow of activated carbon powder delivery conduit ( 9), the drive controller is controlling speed feeding speed screw feeder (6), the load cell (7) connected to the output of the controller.
2.根据权利要求I所述失重式计量微给料机,其特征是:所述调速螺旋给料机(6)与活性炭粉气流输送管道(9)之间设置有螺旋锁风给料机(8),控制器经变频器控制螺旋锁风给料机(8)的给料速度。 2. I claim the micro weight loss feeder metering, characterized in that: said speed screw feeder (6) gas flow between the activated carbon powder delivery conduit (9) provided with a helical air lock feeder (8), the controller controls the drive coil via the air lock feeder (8) of the feed rate.
3.根据权利要求2所述失重式计量微给料机,其特征是:所述调速螺旋给料机(6)与螺旋锁风给料机(8)之间采用喉箍式软连接(2)。 The weight loss of the two micro-metering feeder as claimed in claim, characterized in that: using hose clamps connected between the soft-speed screw feeder (6) and the spiral feeder air lock (8) ( 2).
4.根据权利要求I所述失重式计量微给料机,其特征是:所述活性炭给料仓(4)上方有活性炭储料仓,活性炭储料仓出口(I)与活性炭给料仓入料口(3)之间采用喉箍式软连接(2)。 According to claim I of the loss-in micro metering feeder, characterized in that: said activated carbon feed bunker (4) above the storage bin activated carbon, activated carbon storage bin outlet (I) with the activated carbon into a hopper using the flexible connection hose clamps of formula (2) between the outlet (3).
CN 201120266112 2011-07-26 2011-07-26 Weightless measuring micro-feeder CN202289812U (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103381892A (en) * 2013-07-05 2013-11-06 杭州萧山华东化工设备有限公司 Full-automatic weighing and packaging system and control method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103381892A (en) * 2013-07-05 2013-11-06 杭州萧山华东化工设备有限公司 Full-automatic weighing and packaging system and control method thereof
CN103381892B (en) * 2013-07-05 2015-03-18 杭州萧山华东化工设备有限公司 Full-automatic weighing and packaging system and control method thereof

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