CN103507160A - Continuous mixer and control method thereof - Google Patents

Continuous mixer and control method thereof Download PDF

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Publication number
CN103507160A
CN103507160A CN201310335272.2A CN201310335272A CN103507160A CN 103507160 A CN103507160 A CN 103507160A CN 201310335272 A CN201310335272 A CN 201310335272A CN 103507160 A CN103507160 A CN 103507160A
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CN
China
Prior art keywords
continuous mixer
main shaft
cylindrical shell
continuous
mixing
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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.)
Pending
Application number
CN201310335272.2A
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Chinese (zh)
Inventor
柴标
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柴标
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Priority to CN201310335272.2A priority Critical patent/CN103507160A/en
Publication of CN103507160A publication Critical patent/CN103507160A/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28CPREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/08Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
    • B28C5/0806Details; Accessories
    • B28C5/0818Charging or discharging gates or chutes; Sealing means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28CPREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/08Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
    • B28C5/10Mixing in containers not actuated to effect the mixing
    • B28C5/12Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
    • B28C5/1238Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers for materials flowing continuously through the mixing device and with incorporated feeding or discharging devices
    • B28C5/1246Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers for materials flowing continuously through the mixing device and with incorporated feeding or discharging devices with feeding devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28CPREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/08Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
    • B28C5/10Mixing in containers not actuated to effect the mixing
    • B28C5/12Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
    • B28C5/1238Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers for materials flowing continuously through the mixing device and with incorporated feeding or discharging devices
    • B28C5/1253Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers for materials flowing continuously through the mixing device and with incorporated feeding or discharging devices with discharging devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28CPREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/08Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
    • B28C5/10Mixing in containers not actuated to effect the mixing
    • B28C5/12Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
    • B28C5/14Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a horizontal or substantially horizontal axis
    • B28C5/142Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a horizontal or substantially horizontal axis the stirrer shaft carrying screw-blades
    • B28C5/143Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a horizontal or substantially horizontal axis the stirrer shaft carrying screw-blades for materials flowing continuously through the mixing device
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28CPREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C7/00Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
    • B28C7/02Controlling the operation of the mixing
    • B28C7/022Controlling the operation of the mixing by measuring the consistency or composition of the mixture, e.g. with supply of a missing component
    • B28C7/024Controlling the operation of the mixing by measuring the consistency or composition of the mixture, e.g. with supply of a missing component by measuring properties of the mixture, e.g. moisture, electrical resistivity, density

Abstract

Belonging to the field of machinery, the invention relates to a continuous mixer and a control method thereof, which are used for a wet mixing process of a powder subjected to dry mixing for an extrusion molded plastic partition plate. Specifically, a continuous mixer includes a driving motor at the shaft end, a cylinder with a feeding hole and a discharge hole, a main shaft provided with a stirring device and a frame. The upper part of the front end of the cylinder is provided with the feeding hole; the lower part of the rear end of the cylinder is provided with the discharge hole; and an independently switched nozzle is arranged at the position near the upper half periphery of the cylinder. The stirring device comprises a coulter near the spindle and a material paddle with a long handle. A mode comprising simultaneous quantitative uniform feeding, atomization and spraying of additive while mixing and continuous quantitative discharging from the top to the bottom and an effective closed-loop control strategy are employed to improve production efficiency, ensure the mixing effect and completely overcome wall sticking, axle rounding and clustering hardening of a mixture in the mixing process. Indicators including compactness, smoothness, qualified rate and physical and mechanical properties of an extrusion molding product can be effectively guaranteed.

Description

A kind of continuous mixer and control method thereof
Technical field
The invention belongs to mechanical field, relate in particular to a kind of Mixing Machine and control method thereof, for the wet mixing technical process of plastic wall partition lath powder after being dry mixed of extrusion modling.
Background technology
The mixed earth mixer used of mortar is stirred in resemble construction building site, mostly is closed single cylinder stirred tank, and hand stock adds water, can not continuous operation.Traditional agravic twin shaft gap mix and blend batcher and oar blade type gap mix and blend batcher, when mixing plasticity and adhesive material, inefficiency, because adopting the disposable unified allocation of materials to lower units, traditional mixer concentrates the mode of injecting aqueous promoter, it is inhomogeneous that raw material obtains water electrode, very easily there is sticky wall seize and agglomerating caking phenomenon, cause the uniformity of compound, uniformity and plasticity can not be guaranteed and affects the quality of extruded product, and every mixing once must be to mixer inwall, paddle, the buildup of stirring on axle is thoroughly cleared up once, as cleared up not in time material accumulation sclerosis rear stirrer, cannot move, not only greatly increased workman's labour intensity and brought hidden danger to safety in production, and be open loop to the moisture control of compound, this is just difficult to guarantee the quality of extruded product.General continuous mixer, as 201220396214.1 disclosed mass transport and stirring division control type continuous mixer, the material stirring is siccative, is not suitable for the continuous stirring technique of viscous material.So the continuous mixer of development of new, to adapt to the pretreated special needs of plastic wall partition lath extrusion modling.
Summary of the invention
The problem existing in order to overcome conventional hybrid mixer, the present invention has abandoned a that blanking, the concentrated single pot of hybrid mode of once adding auxiliary agent concentrated that tradition is singly stirred machine, and concrete scheme is:
, comprise the drive motors of axle head, bring into, the cylindrical shell of discharging opening and be provided with main shaft and the frame of agitating device, described cylindrical shell, charging aperture is established on the top of front end, and discharging opening is established in the bottom of rear end, and nearly upper half place is also provided with the nozzle of switch alone; Agitating device on described main shaft comprises near the colter of main shaft with the material oar of long handle.Owing to having adopted limit quantitative and even blanking from top to bottom, limit atomization to spray into the mode of the mixing of auxiliary agent limit, limit continuous and quantitative discharging; not only make production efficiency be greatly improved but also guarantee plasticity, uniformity, laxity and the moisture content uniformity of composite material, thoroughly having overcome compound sticky wall, seize, conglomeration hardening phenomenon in whipping process.
As preferably, a kind of continuous mixer, described colter and the described alternate setting of material oar, arrange along main shaft on the whole in the shape of a spiral.Under the drive of drive motors, the agitating device on main shaft, stir on one side, on one side material is carried toward discharging opening, to reach the object of continuous stirring.
As preferably, a kind of continuous mixer, described nozzle has two row spraying bands along throughput direction, and the main shaft of substantially take is arranged symmetrically on described cylindrical shell as symmetry axis.Disperse filling aqueous promoter, in whipping process, be vaporific being injected to and be stirred in the material seething, can avoid the generation of clustering phenomena.
As preferably, a kind of continuous mixer, has also installed on-line moisture determination instrument.At material, in discharging opening course of conveying, on-line determination moisture, if water deficient is opened the nozzle near charging aperture successively, realizes closed-loop control.
As preferably, a kind of continuous mixer discharging opening is provided with the door of controlled aperture.According to the size of expenditure, regulate the aperture of door, the nozzle that blended stock continues stirring ,Er rear end in the rear end of cylindrical shell is closed, and does not affect moisture, and can make the further homogenization of material.
As preferably, a kind of continuous mixer, described cylindrical shell is that sectionally smooth join forms, according to concrete production requirement, the humidity of capable of regulating material and homogenization degree.Cylindrical shell is longer, and homogenization degree is higher, and adjustable humidity range is larger.
As preferably, a kind of continuous mixer, is characterized in that normally closed flushing door is also established in the bottom of described cylindrical shell, and cylindrical shell stringcourse is also provided with transparent sight hole on position.So that observation working condition, and determine the developing result between class.
A kind of control method of continuous mixer, along major axes orientation, more than 5 measuring point is set, controls the lapse rate of the moisture content first-order difference of continuous measuring point, the maximum of second differnce, change the speed of mainshaft and coordinate spraying with the nozzle number of upper unlatching, realize closed-loop control.When forward direction measured value is lower, along the follow-up nozzle of main shaft 8, just open successively, carry out spraying operation.The moisture value of dbullioscope raises gradually along throughput direction continuously, and the difference of adjacent point-to-point transmission should reduce gradually, and when reaching controlling value, moisture reaches requirement simultaneously, and material is also completely even.
The invention has the advantages that: adopt limit quantitative and even blanking from top to bottom, limit atomization to spray into the mode of the mixing of auxiliary agent limit, limit continuous and quantitative discharging; effectively closed-loop control; not only make production efficiency be greatly improved but also guarantee plasticity, uniformity, laxity and the moisture content uniformity of compound; thoroughly overcome compound sticky wall, seize, conglomeration hardening phenomenon in whipping process, the indexs such as the packing of extrusion modling product, flatness, qualification rate and physical and mechanical property are all effectively guaranteed.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the structure of the embodiment of the present invention;
Fig. 2 is the top view of Fig. 1 of the embodiment of the present invention;
Fig. 3 is the upward view of Fig. 1 of the embodiment of the present invention;
Fig. 4 is the left view of Fig. 1 of the embodiment of the present invention;
In figure 1, drive motors; 2, frame; 3, cylindrical shell; 4, charging aperture; 5, material oar; 6, colter; 7, transparent sight hole; 8, main shaft; 9, discharging opening; 10, door; 11, nozzle; 12, rinse door.
The specific embodiment
In order better to illustrate, now in conjunction with Fig. 1, to Fig. 4, be elaborated content of the present invention:,
Embodiment 1: a kind of continuous mixer, the drive motors 1 that comprises axle head, bring into, the cylindrical shell 3 of discharging opening and be provided with main shaft 8 and the frame 2 of agitating device, described cylindrical shell 3, charging aperture 4 is established on the top of front end, discharging opening 9 is established in the bottom of rear end, and nearly upper half place is also provided with the nozzle 11 of switch alone; Described nozzle 11 has two row spraying bands along throughput direction, substantially take main shaft 8 on the cylindrical shell 3 described in symmetry axis is arranged symmetrically in, and the jet face of dispersed placement is large.Agitating device on described main shaft 8 comprises near the colter 6 of main shaft 8 with the material oar 5 of long handle.Described colter 6 and the described alternate setting of material oar 5, arrange along main shaft 8 on the whole in the shape of a spiral.Owing to having adopted limit quantitative and even blanking from top to bottom, limit atomization to spray into the mode of the mixing of auxiliary agent limit, limit continuous and quantitative discharging; not only make production efficiency be greatly improved but also guarantee plasticity, uniformity, laxity and the moisture content uniformity of composite material, thoroughly having overcome compound sticky wall, seize, conglomeration hardening phenomenon in whipping process.General stirring capacity is 200 kilograms per minute of the compound of 0.7 kilogram/cubic decimeter in density.Can meet the needs of follow-up extrusion process.
Embodiment 2: a kind of continuous mixer, and agent structure is with embodiment 1, and described cylindrical shell 3 is for sectionally smooth join forms, according to concrete production requirement, the humidity of capable of regulating material and homogenization degree.Cylindrical shell 3 is longer, and homogenization degree is higher, and adjustable humidity range is larger.Normally closed flushing door 12 is also established in the bottom of described cylindrical shell 3, and cylindrical shell stringcourse is also provided with transparent sight hole 7 on position.So that observation working condition, and determine the developing result between class.
Embodiment 3: a kind of continuous mixer, on-line moisture determination instrument has also been installed on the basis of embodiment 2.At material, in discharging opening course of conveying, on-line determination moisture, if water deficient is opened the nozzle near charging aperture successively, realizes closed-loop control.Its control method, arranges more than 5 measuring point along major axes orientation, controls the lapse rate of the moisture content first-order difference of continuous measuring point, and the maximum of second differnce changes the speed of mainshaft and coordinates spraying with the nozzle number of upper unlatching, realizes closed-loop control.Measuring point is that the moisture value of measuring raises gradually along throughput direction continuously, and the difference of adjacent point-to-point transmission should reduce gradually, and when reaching controlling value, moisture reaches requirement, and material is also completely even.
In a word, the technical solution adopted in the present invention is that single pot of mixer raw material of tradition are concentrated and to be concentrated again the mode that once adds aqueous promoter to mix again a unified allocation of materials to lower units after to be mixed completing after one-time feeding, and the continuous operation that so will guarantee production line just must minimum wants two singly to stir machine alternation and can meet.Change this mode into a gradation continuous uniform feed, in continuous even equal feed, synchronous atomization sprays into auxiliary agent, reach continuous-feeding, continuously atomization spray into auxiliary agent, mix continuously, continuous discharge four connect technical scheme.Simultaneously in order to reach uniformity and the uniformity of compound moisture content, the online moisture determination instrument that precision is 0.1% has been installed connecting to stir on machine, it is 0.1 second that analyzer is controlled reaction speed, after access PLC is program control, can accurately control the uniformity that atomization quantity reaches compound moisture content.Adopted to connect and stirred after mixer not only production efficiency and obtain being doubled and simplifying hybrid technique, what is more important has improved the mixing quality of raw material, thereby makes the quality of product obtain better assurance.

Claims (8)

1. a continuous mixer, the drive motors (1) that comprises axle head, bring into, the cylindrical shell (3) of discharging opening and be provided with main shaft (8) and the frame (2) of agitating device, it is characterized in that described cylindrical shell (3), charging aperture (4) is established on the top of front end, discharging opening (9) is established in the bottom of rear end, and nearly upper half place is also provided with the nozzle of switch (11) alone; Described agitating device comprises near the colter (6) of main shaft (8) with the material oar (5) of long handle.
2. continuous mixer according to claim 1, is characterized in that described colter (6) and the described alternate setting of material oar (5), arranges in the shape of a spiral on the whole along main shaft (8).
3. continuous mixer according to claim 1, is characterized in that described nozzle (11) has two row spraying bands along throughput direction, substantially take main shaft (8) on the cylindrical shell (3) described in symmetry axis is arranged symmetrically in.
4. according to the continuous mixer described in claim 2 or 3, it is characterized in that described company continuously on-line moisture determination instrument being also installed on the machine of stirring.
5. continuous mixer according to claim 4, is characterized in that the described discharging opening that connects continuously the machine of stirring (9) is provided with the door (10) of controlled aperture.
6. continuous mixer according to claim 5, is characterized in that described cylindrical shell (3) forms for sectionally smooth join.
7. continuous mixer according to claim 6, is characterized in that normally closed flushing door (12) is also established in the bottom of described cylindrical shell (3), is also provided with transparent sight hole (7) on cylindrical shell stringcourse position.
8. the control method of continuous mixer claimed in claim 4, along main shaft (8) direction, more than 5 measuring point is set, control the lapse rate of the moisture content first-order difference of continuous measuring point, the maximum of second differnce, change main shaft (8) rotating speed and coordinate spraying with nozzle (11) number of upper unlatching, realize closed-loop control.
CN201310335272.2A 2013-08-05 2013-08-05 Continuous mixer and control method thereof Pending CN103507160A (en)

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Application Number Priority Date Filing Date Title
CN201310335272.2A CN103507160A (en) 2013-08-05 2013-08-05 Continuous mixer and control method thereof

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CN103507160A true CN103507160A (en) 2014-01-15

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104229401A (en) * 2014-08-22 2014-12-24 北方重工集团有限公司 Continuous horizontal type strong blending machine
CN106938497A (en) * 2017-03-24 2017-07-11 浙江立信建设发展有限公司 A kind of concrete mixer
CN106113255B (en) * 2016-08-23 2018-06-29 成都市易建建筑材料有限公司 Blender separates the agitating unit and blender of sand wash

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2204638Y (en) * 1993-01-14 1995-08-09 浙江省化工研究院 Mixer with improved vanes
JPH1147725A (en) * 1997-07-29 1999-02-23 Hokkaido Prefecture Apparatus for decomposition treatment of organic waste
JPH11300188A (en) * 1998-04-17 1999-11-02 Takahashi Kikan:Kk Humidifying and kneading device
CN201157762Y (en) * 2007-12-21 2008-12-03 付留根 Double-shaft continuous fly ash mixing apparatus
CN201333386Y (en) * 2008-12-06 2009-10-28 兰州瑞德干燥技术有限公司 Coulter-type catalyst interval kneader
CN201415112Y (en) * 2009-07-02 2010-03-03 石家庄众佳鑫机械设备有限公司 Inner watering double shaft dust humidifier
CN202087253U (en) * 2011-04-29 2011-12-28 河南巨龙生物工程股份有限公司 Humidification mixer
CN202336306U (en) * 2011-11-24 2012-07-18 攀钢集团钢铁钒钛股份有限公司 Humidifying stirring machine
CN203371650U (en) * 2013-08-05 2014-01-01 柴标 Continuous mixer

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2204638Y (en) * 1993-01-14 1995-08-09 浙江省化工研究院 Mixer with improved vanes
JPH1147725A (en) * 1997-07-29 1999-02-23 Hokkaido Prefecture Apparatus for decomposition treatment of organic waste
JPH11300188A (en) * 1998-04-17 1999-11-02 Takahashi Kikan:Kk Humidifying and kneading device
CN201157762Y (en) * 2007-12-21 2008-12-03 付留根 Double-shaft continuous fly ash mixing apparatus
CN201333386Y (en) * 2008-12-06 2009-10-28 兰州瑞德干燥技术有限公司 Coulter-type catalyst interval kneader
CN201415112Y (en) * 2009-07-02 2010-03-03 石家庄众佳鑫机械设备有限公司 Inner watering double shaft dust humidifier
CN202087253U (en) * 2011-04-29 2011-12-28 河南巨龙生物工程股份有限公司 Humidification mixer
CN202336306U (en) * 2011-11-24 2012-07-18 攀钢集团钢铁钒钛股份有限公司 Humidifying stirring machine
CN203371650U (en) * 2013-08-05 2014-01-01 柴标 Continuous mixer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104229401A (en) * 2014-08-22 2014-12-24 北方重工集团有限公司 Continuous horizontal type strong blending machine
CN106113255B (en) * 2016-08-23 2018-06-29 成都市易建建筑材料有限公司 Blender separates the agitating unit and blender of sand wash
CN106938497A (en) * 2017-03-24 2017-07-11 浙江立信建设发展有限公司 A kind of concrete mixer
CN106938497B (en) * 2017-03-24 2019-01-15 浙江立信建设发展有限公司 A kind of concrete mixer

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Application publication date: 20140115