CN202599492U - Raw material measuring scale - Google Patents

Raw material measuring scale Download PDF

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Publication number
CN202599492U
CN202599492U CN 201220226914 CN201220226914U CN202599492U CN 202599492 U CN202599492 U CN 202599492U CN 201220226914 CN201220226914 CN 201220226914 CN 201220226914 U CN201220226914 U CN 201220226914U CN 202599492 U CN202599492 U CN 202599492U
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CN
China
Prior art keywords
raw material
material weigher
dish
weigher according
rotor
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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.)
Expired - Lifetime
Application number
CN 201220226914
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Chinese (zh)
Inventor
韩平
褚勤萍
刘凤强
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BEIJING YANSHAN FUNKEN PRECISION MACHINERY Co Ltd
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BEIJING YANSHAN FUNKEN PRECISION MACHINERY Co Ltd
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Priority to CN 201220226914 priority Critical patent/CN202599492U/en
Application granted granted Critical
Publication of CN202599492U publication Critical patent/CN202599492U/en
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Abstract

The utility model provides a raw material measuring scale. The raw material measuring scale comprises a buffer bin, a reception tray, pivot bearing assemblies, an upper cover, a rotator, a variable-frequency and variable-speed motor, a speed measurement sensor, a weight sensor, a microcomputer control system, a material entrance, a material exit and a stand. The inside of the reception tray is provided with the closed rotor, and the reception tray is supported on the strand by pivot bearing assemblies which are positioned at the two ends of the axis of symmetry of the reception tray, so that the reception tray swings left and right taking the connecting line of the pivot bearing assemblies at the two ends as the axis, and thus a scale structure is formed. The reception tray comprises a bottom plate and a cylindrical body, wherein the cylindrical body and the bottom plate are fastened through a bolt. According to the raw material measuring scale, the conveying capability is large, the precision is high, the price is low, the installation space is small, and the flow is stable and continuous; and the maximum supply capability can reach 500 t/h.

Description

A kind of raw material weigher
Technical field:
The utility model relates to the field of weight feed powder, relates in particular to the raw material weigher that a kind of continuous and quantitative that can be used for raw material powder in the industries such as cement, building materials is supplied with.
Background technology:
At present; New type nonaqueous cement production line develops very fast at home and abroad; But wherein crucial equipment raw material metering outfit development technically is backward relatively, has still continued to use the technology of the 80s and 90s in last century, at present main belt conveyer scale, impact flow meter and the Ke Shi scale etc. of using on the production line.Wherein, it is open that belt is claimed to belong to, and has shortcomings such as airborne dust, precision be low; The impact flow meter existence is prone to the shortcoming big, that precision is low of adhering to, fluctuate; And the online calibration system of the meter characteristic that Ke Shi claims configuration directly perceived, necessary, customer using cost is higher.
A kind of swinging powder flow meter is disclosed in patent 97236409.9; Include reducing motor, transmission shaft, torque sensor, feeder hopper and measuring disk; Wherein feeder hopper and measuring disk are in airtight housing, and charging aperture is arranged at housing top, and discharging opening is arranged at the bottom; Reducing motor, torque sensor are in outside, and transmission shaft drives the measuring disk high speed rotary under reducing motor drives.This powder flow meter utilizes coriolis force to measure the flow of material, has characteristics such as measurement is accurate, no dust pollution.Its weak point is that the transmission shaft lower end links to each other with housing through bearing, protects bearing with bearing cap; After work a period of time; Dust can get into the slit between transmission shaft and bearing cap from the top, and gets in the bearing, thereby increases the rotation friction of transmission shaft; And and then influence the output data of torque sensor, and then the influence accuracy of measuring.
Therefore we need develop that the single device transport capacity is big, precision is high, price is low, installing space is little, stability of flow and continuous product, to satisfy the measuring requirement of raw material in the building material industry.We have designed the raw material weigher that is applicable to the 2500t/d cement producing line in 2008, i.e. MSB type, and came into operation in certain cement mill in 2009.This weigher be a kind of continuously, the device of weight feed powder.The user uses the result to prove at aspects such as transport capacity, quantification stability property, measuring accuracy and safe reliabilities can both satisfy customer requirements preferably.For adapting to the fast development of cement industry, we have designed the raw material weigher that is applicable to 5000t/d new type dry kiln cement producing line, i.e. LS-U type again.
The utility model content:
The purpose of the utility model is to design that a kind of single device transport capacity is big, precision is high, price is low, installing space is little, stability of flow and continuous raw material weigher, and its maximum supply capacity is 500t/h.
The utility model provides a kind of raw material weigher; Comprise surge bunker, receive dish, fulcrum roller assembly, loam cake, rotor, frequency control motor, tachogenerator, LOAD CELLS, Control System of Microcomputer, feeding mouth, discharging opening and pallet; Saidly coiled interior cartridge rotor; Fulcrum roller assembly by being positioned at its horizontal symmetry axis two ends is supported on the pallet, and making the line that is coiled with two ends fulcrum roller assembly serves as that axle swings, and constitutes a day flat structure; The said dish that receives comprises and base plate and cylindrical shell with bolt cylindrical shell and base plate is tightened to one.
Further, the said interior diameter that coiled is 1750mm, and the degree of depth is 560mm.
Further, the said plate bottom surface of being tried to get to the heart of a matter has circumferentially and reinforcement radially.
Further, said cylindrical shell circumferentially and radially all has been uniformly distributed with reinforcement.
Further, said frequency control motor is connected in said vertical symmetry central lower of being coiled, and said motor is passed to rotor to power makes it turn round around vertical center axis.
Further, said rotor is formed closed type structure by wheel hub and the blade and the outer ring that are uniformly distributed with on it, and spatial was slit into isometric space in blade will be coiled.
Further, said control system comprises flow testing division and flow control portion; Said flow testing division detects flow value; Said flow control portion is made up of its output function value pid control circuit.
Further, said control system is made up of the FUC-276 microcomputerized controller.
The beneficial effect of the utility model is: what of feed amount can carry out accurately step-less adjustment through revolution; This device self is exactly the balance structure, and the powder that adheres to fixed part, can not take place to change zero point so be in left and right sides state of equalization all the time by the rotational automatic counteracting of rotor yet; Because be complete seal construction, can not produce Lou powder and dust; Owing to adopt continuous detecting flow mode, can detect incessantly and control; Owing to adopt the control that adapts to mechanism characteristics, can draw reaction and high precision rapidly to technique change; The reliability of machinery and control is high, so fault is few and easy care.
Description of drawings:
Fig. 1 is the right view of raw material weigher in the utility model;
Fig. 2 is the front view of raw material weigher in the utility model;
Fig. 3 is the structure principle chart of raw material weigher in the utility model;
Fig. 4 is the front view that is coiled in the utility model;
Fig. 5 is the structural representation that is coiled in the utility model.
Embodiment:
Elaborate below in conjunction with the embodiment of accompanying drawing to the utility model.Shown in Fig. 1-3, raw material weigher device comprises surge bunker 1, is coiled 2 (being annular outer cover and base plate), fulcrum roller assembly 3, loam cake 4; Rotor 5, frequency control motor 6, tachogenerator 7, LOAD CELLS 8; Control system 9, feeding mouth 10, discharging opening 11, pallet 12.Coiled cartridge rotor 5 in 2, be supported on the pallet 12 by the fulcrum roller assembly 3 that is positioned at its horizontal symmetry axis two ends, making and being coiled 2 lines with two ends fulcrum roller assembly 3 serves as that axle swings, and constitutes a day flat structure; The far-end top of fulcrum 13 is the feeding mouth 10 of powder; The near-end bottom of fulcrum roller assembly 3 is the discharging opening 11 of powder, and frequency control motor 6 is connected in and is coiled 2 vertical symmetry central lower, and motor 6 is passed to rotor 5 to power makes it turn round around vertical center axis; Rotor 5 is made up of wheel hub and the blade that is uniformly distributed with on it; Blade will be coiled, and spatial are slit into isometric space in 2, are filled into by feeding mouth 10 in the blade cavity of rotor 5 from the raw material powder at the upper reaches, take the powder that is entered into 5 li of rotors by feeding mouth 10 to discharging opening 11 discharges; The blade space that soars continues the rotation half cycle to feeding mouth; Then accept powder again, continue rotation, thereby realize the continuous supply of powder from the top feeding mouth.This device capability is big, precision is high, installing space is little, stability of flow and continuously, adopt the totally-enclosed structure, can not produce that powder leaks and airborne dust, helps environmental protection.
The powder weight that powder gets into from entering the mouth, LOAD CELLS 8 continuous detecting are passed through half cycle, the tach signal metering-in control system 9 that the weight signal that obtains records together with tachogenerator 7, this control system 9 is made up of the FUC-276 microcomputerized controller.
Control system 9 comprises flow testing division and flow control portion.Wherein by powder weight signal in LOAD CELLS 8 detected half rotor; This weight signal converts weight data into through the A/D transducer; And calculate long-pending with rotor speed at that time through the flow testing division in the microcomputerized controller, promptly detect flow value (PV value).Flow control portion is made up of the pid control circuit in the microcomputerized controller; Its output function value (MV value); As frequency setting signal, the rotating speed of control raw material weigher is consistent the PV value of flow testing division detection and the last setting value (SV value) of controller LCD to frequency converter this MV value.
In order to realize maximum supply capacity 500t/h, coiled 2 interior diameters and reached 1750mm, degree of depth 560mm (greater than 500mm); Two ends fulcrum span on it is greater than 1800mm, and stress point is receiving disk center again, adopts the structure of base plate and annular outer cover split; Strengthen the rigidity and the intensity of base plate, fulcrum is located on the base plate, makes main body be on the pallet fully; Can reduce the lateral dimension of pallet at this point, save the space, reduced cost.Shown in accompanying drawing 4,5, coiled 2 and comprised base plate 14 and cylindrical shell 15, with bolt cylindrical shell 15 and base plate 14 are tightened to one.Cylindrical shell can roll post-equalization, welding by steel plate, in order to increase the strength and stiffness of cylindrical shell, reduces deflection, its circumferentially with radially all be uniformly distributed with certain thickness reinforcement, carry out machining after the annealing again.The plate 14 of being tried to get to the heart of a matter all acts on impeller and the load of being coiled the parts such as motor of bottom on the central area of the plate of being tried to get to the heart of a matter through axle through the bearing of installing on the electric machine support, and this load is estimated 35KN.The conveying raw material ability of this raw material scale can reach 500t/h.
The characteristics and the beneficial effect of the utility model are: what of feed amount can carry out accurately step-less adjustment through revolution; This device self is exactly the balance structure, and the powder that adheres to fixed part, can not take place to change zero point so be in left and right sides state of equalization all the time by the rotational automatic counteracting of rotor yet; Because be complete seal construction, can not produce Lou powder and dust; Owing to adopt continuous detecting flow mode, can detect incessantly and control; Owing to adopt the control that adapts to mechanism characteristics, can draw reaction rapidly and guarantee the high precision running to technique change; The reliability of machinery and control is high, so fault is few and easy care.
Above-mentioned detailed description is specifying to the embodiments possible of the utility model; Above-mentioned embodiment is not the claim in order to restriction the utility model; All equivalences that does not break away from the utility model are implemented or change, all should be contained in the claim of the utility model.

Claims (10)

1. raw material weigher; Comprise surge bunker (1), receive dish (2), fulcrum roller assembly (3), loam cake (4), rotor (5), frequency control motor (6), tachogenerator (7), LOAD CELLS (8), control system (9), feeding mouth (10), discharging opening (11) and pallet (12); Said dish (2) the interior cartridge rotor (5) that receives; Be supported on the pallet (12) by the fulcrum roller assembly (3) that is positioned at its horizontal symmetry axis two ends; Making the said dish (2) that receives serves as that axle swings with the line of two ends fulcrum roller assemblies (3), constitutes a day flat structure, it is characterized in that; The said dish (2) that receives comprises base plate (14) and cylindrical shell (15), with bolt cylindrical shell (15) and base plate (14) is tightened to one.
2. raw material weigher according to claim 1 is characterized in that, said receive the dish (2) interior diameter be 1750mm, the degree of depth is 560mm.
3. raw material weigher according to claim 1 is characterized in that, said cylindrical shell (15) circumferentially and radially all has been uniformly distributed with reinforcement.
4. raw material weigher according to claim 1 is characterized in that, the maximum supply capacity of said raw material weigher is 500t/h.
5. raw material weigher according to claim 1 is characterized in that, said frequency control motor (6) is connected in the said vertical symmetry central lower that receives dish (2), and said motor (6) is passed to rotor (5) to power makes it turn round around vertical center axis.
6. raw material weigher according to claim 1 is characterized in that, said rotor (5) is formed closed type structure by wheel hub and the blade and the outer ring that are uniformly distributed with on it, and said blade will receive dish (2) interior spatial to be slit into isometric space.
7. raw material weigher according to claim 1 is characterized in that, said control system (9) comprises flow testing division and flow control portion.
8. raw material weigher according to claim 7 is characterized in that said flow testing division detects flow value.
9. raw material weigher according to claim 7 is characterized in that, said flow control portion is made up of its output function value pid control circuit.
10. raw material weigher according to claim 1 is characterized in that, said control system (9) is made up of the FUC-276 microcomputerized controller.
CN 201220226914 2012-05-18 2012-05-18 Raw material measuring scale Expired - Lifetime CN202599492U (en)

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Application Number Priority Date Filing Date Title
CN 201220226914 CN202599492U (en) 2012-05-18 2012-05-18 Raw material measuring scale

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106546307A (en) * 2016-10-26 2017-03-29 武汉理工大学 A kind of discontinuous powder metering equipment
CN106768221A (en) * 2016-11-28 2017-05-31 中国冶集团有限公司 A kind of concrete self-measuring device and metering method
WO2017201875A1 (en) * 2016-05-27 2017-11-30 深圳市妈妈科技有限公司 Metering device for powder discharge amount of powder box
CN111121930A (en) * 2019-12-16 2020-05-08 合肥固泰自动化有限公司 Automatic control system of constant feeder

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017201875A1 (en) * 2016-05-27 2017-11-30 深圳市妈妈科技有限公司 Metering device for powder discharge amount of powder box
CN106546307A (en) * 2016-10-26 2017-03-29 武汉理工大学 A kind of discontinuous powder metering equipment
CN106546307B (en) * 2016-10-26 2019-01-18 武汉理工大学 A kind of discontinuous powder metering equipment
CN106768221A (en) * 2016-11-28 2017-05-31 中国冶集团有限公司 A kind of concrete self-measuring device and metering method
CN111121930A (en) * 2019-12-16 2020-05-08 合肥固泰自动化有限公司 Automatic control system of constant feeder
CN111121930B (en) * 2019-12-16 2021-12-14 合肥固泰自动化有限公司 Automatic control system of constant feeder

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CX01 Expiry of patent term
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Granted publication date: 20121212