CN103058492B - Ore melting furnace quantitative feeding device - Google Patents

Ore melting furnace quantitative feeding device Download PDF

Info

Publication number
CN103058492B
CN103058492B CN201310003813.1A CN201310003813A CN103058492B CN 103058492 B CN103058492 B CN 103058492B CN 201310003813 A CN201310003813 A CN 201310003813A CN 103058492 B CN103058492 B CN 103058492B
Authority
CN
China
Prior art keywords
bin
spiral
programmable logic
hopper
logic controller
Prior art date
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.)
Active
Application number
CN201310003813.1A
Other languages
Chinese (zh)
Other versions
CN103058492A (en
Inventor
彭涛
喻克洪
曹柏青
鲜平
杨彦斌
邓小军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SICHUAN AEROSPACE TUOXIN BASALT INDUSTRIAL Co Ltd
Original Assignee
SICHUAN AEROSPACE TUOXIN BASALT INDUSTRIAL Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SICHUAN AEROSPACE TUOXIN BASALT INDUSTRIAL Co Ltd filed Critical SICHUAN AEROSPACE TUOXIN BASALT INDUSTRIAL Co Ltd
Priority to CN201310003813.1A priority Critical patent/CN103058492B/en
Publication of CN103058492A publication Critical patent/CN103058492A/en
Application granted granted Critical
Publication of CN103058492B publication Critical patent/CN103058492B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The invention discloses an ore melting furnace quantitative feeding device which is a feeding device. The ore melting furnace quantitative feeding device comprises a material rack. A funnel-shaped material chamber is arranged on the material rack. A vibration base and a spiral top plate are arranged on the material rack. The vibration base is arranged below the material chamber. The spiral top plate is arranged below the vibration base. The vibration base is fixedly connected with the spiral top plate. A spiral channel is provided in the spiral top plate. A material hopper is arranged on the material rack. The outlet of the spiral channel is suspended above the material hopper. A valve power assembly used for controlling the opening and closing of a discharge end is arranged on the material hopper discharge end. The material chamber and the material hopper are arranged on the material rack, and are both supported by weighing sensors. According to the invention, material delivery is carried out through the vibration base and the spiral top plate, such that the situation of excessive instant feeding amount is effectively avoided, and stability is high. The device provided by the invention has a simple structure, and is especially suitable to be used as a raw ore feeding device in basalt fiber production.

Description

Ore smelting pot dosing device
Technical field
The present invention relates to a kind of feeding device, in particular, the present invention relates generally to a kind of ore smelting pot dosing device.
Background technology
The production of basalt fibre is the process of working continuously of fusing, wire drawing, need in the melting pool of kiln at any time supplement for the production of ore, therefore reinforced continuity, stability, accuracy and controllability ensure to stablize in smelting furnace, and affect the important factor of basalt fibre output and technic index.Because the melting process of basalt ore dusty raw materials is still immature, the therefore current mostly raw material that uses of the basalt manufacturer basalt raw ore that is particulate state or little bulk, and it is directly joined in smelting furnace.Because the ore size of particle or bulk is uneven, the more high reason of out-of-shape, hardness; make the revolution class mechanism extensively adopted at present when carrying out reinforced operation; equipment easily produces bite; and then block equipment charging opening; and reinforced speed can not well control; make the technical indicator in smelting furnace not reach processing requirement, product production is low, and scrap rate remains high.Therefore based on foregoing problems, be necessary do further research for the feeding device structure of producing for basalt fibre in prior art and improve.
Summary of the invention
An object of the present invention is to solve above-mentioned deficiency, there is provided a kind of ore smelting pot dosing device, to expect that turn round class mechanism in solution prior art easily blocks when reinforced, and dosage speed can not be effectively controlled, thus affecting product production, scrap rate is high-technology problem comparatively.
For solving above-mentioned technical problem, the present invention by the following technical solutions:
A kind of ore smelting pot dosing device provided by the present invention comprises bin, described bin is provided with in funnelform feed bin, described bin is also provided with vibrating base and spiral is taken over a business, described spiral takes over a business to be placed in the below of feed bin, and vibrating base is placed in the below that spiral is taken over a business; Described vibrating base and spiral take over a business to be connected and fixed, and the inside that described spiral is taken over a business is provided with helical channel; The discharge port of described feed bin lower end extends near the bottom that spiral takes over a business, and the maintenance gap, bottom of taking over a business with spiral; Described bin is also provided with hopper, and the outlet of described helical channel is suspended at the top of hopper, and the blowing end of hopper is provided with the valve Power Component opened and closed for controlling blowing end; Described feed bin and hopper are arranged on bin and support by LOAD CELLS.
As preferably, further technical scheme is: the side of described feed bin is also provided with stock bin dredger, described stock bin dredger comprises power set and dredging bar, and dredging bar is placed in the inside of feed bin, for the discharge port of the dredging feed bin that moved up and down by power set drive dredging bar.
Further technical scheme is: the power set of described stock bin dredger is cylinder.
Further technical scheme is: described valve Power Component comprises valve, electro-magnet and linkage assembly, is driven the open and close of valve by electro-magnet by linkage assembly.
Further technical scheme is: the LOAD CELLS of described support feed bin is also arranged on bin, and access control system.
Further technical scheme is: the LOAD CELLS of described support hopper is sophisticated sensor, and is also arranged on bin, and access control system.
Further technical scheme is: at least comprise programmable logic controller in described Controlling System, described programmable logic controller also accesses valve Power Component and vibrating base, programmable logic controller is used for according to the feeding study on period preset and cycle feeding quantity, and the weight signal by-pass valve control Power Component that feeds back of LOAD CELLS and the open and close of vibrating base.
Further technical scheme is: described support feed bin and hopper LOAD CELLS all access programmable logic controller by weight transmitter, inputs programmable logic controller for the physical signalling of LOAD CELLS being converted to electrical signal by weight transmitter; Described vibrating base passes through vibrating disk controller access programmable logic controller, performs for being controlled vibrating base by vibrating disk controller the steering order coming from programmable logic controller unlatching or closedown and amplitude-frequency; Electro-magnet access programmable logic controller in described valve Power Component, for the steering order driving valve to perform programmable logic controller unlatching or close by linkage assembly by electro-magnet.
Further technical scheme is: also comprise upper industrial computer in described Controlling System, for the record of Controlling System service data and the monitoring of running status.
Compared with prior art, one of beneficial effect of the present invention is: set up stock bin dredger by the side at feed bin, and with feeding device synchronous operation, can effectively prevent ore from blocking at discharge port, and the container of storing in feeding device with blowing is separated, taken over a business to carry out material transmission by vibrating base and spiral, effectively prevent the situation that add-on is excessive instantaneously, stability is high, by LOAD CELLS Real-time Collection weight data, under the effect of programmable logic controller in the controls, make material transmission and blowing amount consistent with the feeding study on period preset in Controlling System and cycle feeding quantity, realize accurately adding of material, controllability is high, guarantee that the technical indicator in smelting furnace reaches processing requirement, improve output and the qualification rate of product, scrap rate is low, a kind of ore smelting pot dosing device structure provided by the present invention is simple simultaneously, especially be suitable for being applied in basalt fibre production, also can be used as the feeding device of other ore smeltings, range of application is wide.
Accompanying drawing explanation
Fig. 1 is the structural representation for illustration of one embodiment of the invention;
Fig. 2 is the axle side structure schematic diagram for illustration of one embodiment of the invention;
Fig. 3 is the structured flowchart for illustration of Controlling System in another embodiment of the present invention;
In figure, 1 be bin, 2 is feed bin, 3 be vibrating base, 4 for spiral take over a business, the outlet, 5 of 41 to be helical channel, 42 be helical channels is hopper, 6 be valve Power Component, 7 be LOAD CELLS, 8 be stock bin dredger.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further elaborated.
Shown in figure 1, Fig. 2, one embodiment of the present of invention are a kind of ore smelting pot dosing devices, and first this device needs to arrange bin 1, and install on bin 1 in funnelform feed bin 2, the upper opening of feed bin 2, keep in so that batch adds material; And bin 1 is also provided with vibrating base 3 with spiral and takes over a business 4, wherein the below that 4 are placed in feed bin 2 taken over a business by spiral, and vibrating base 3 is placed in the below that spiral takes over a business 4; Described vibrating base 3 and spiral are taken over a business 4 and are interconnected and fixed, and arrange in helical channel 41(Fig. 1 not shown in the inside that spiral takes over a business 4); And the discharge port of feed bin 2 lower end need extend to spiral takes over a business near the bottom of 4, and and spiral take over a business 4 bottom between keep gap; In addition, in the present embodiment, aforesaid bin 1 also needs install hopper 5, the outlet 42 of helical channel 41 is simultaneously suspended at the top of hopper 5, and the blowing end of hopper 5 is also provided with the valve Power Component 6 opened and closed for controlling blowing end; Described feed bin 2 is arranged on bin 1 with hopper 5 and supports by LOAD CELLS 7.4 objects be connected taken over a business by aforementioned vibrating base 3 and spiral is realize resonating, and therefore mode of connection is comparatively random, and the concrete mode of connection that both adopt in the present embodiment is that bolt connects.
In the parts that the present embodiment is mentioned, the support sensor 7 of above-mentioned feed bin 2 and support feed bin forms the storing unit in feeding device, spiral is taken over a business 4 and is formed feeder unit in feeding device with vibrating base 3, hopper 5 and valve Power Component 6 and the LOAD CELLS 7 supporting hopper 5 form the blowing unit of weighing of feeding device, the mechanical system be made up of aforementioned three parts is when reality uses, cooperation between each unit can carry out coordination and control by logic control implementations such as PLC, being specially material adds in feed bin 2 by the opening batch above feed bin 2, material enters by the outlet below feed bin 2 bottom that spiral takes over a business 4, gap is there is due between the bottom that the outlet of feed bin 2 and spiral take over a business 4, therefore can not block under normal circumstances, now under the conduction of LOAD CELLS 7, vibrating base 3 is controlled starts vibration, and drive coupled spiral to take over a business 4 together to vibrate, under oscillating action, the helical channel 41 progressively spiral of the material bottom 4 along inside taken over a business by spiral, finally enter in hopper 5 by the outlet 42 of helical channel 41, and under the conduction of LOAD CELLS 7 supporting hopper 5, according to the feeding study on period preset and cycle feeding quantity, the controlled unlatching of valve Power Component 6, namely material enters smelting furnace by the blowing end of hopper 5.
4 act as and be passed to from the bottom to top in hopper 5 by material taken over a business by above-mentioned vibrating base 3 and spiral, avoids the material entering hopper 5 instantaneously too many, cause feeding quantity moment in cycle excessive, affect the technical indicator in smelting furnace.Based on aforementioned object, the comparatively simple embodiment of the present invention directly adopts vibrating disk of the prior art to become above-mentioned vibrating base 3 to take over a business 4 structures be connected with spiral, and vibrating disk is the auxiliary feeding equipment of a kind of automatic Composition or automatic processing machine.Its application mode main in the prior art, for arrange out in an orderly manner by various product, coordinates automatic assembly equipment each position of product to be assembled the product becoming complete, or cooperation automatic processing machine completes the processing to workpiece.
And contriver also finds when specifically testing, although leave gap between the bottom that the feed bin 2 in above-described embodiment exports and spiral takes over a business 4, but establish excessive at the volume of silo 2, or in feed bin 2 moment the unconventional situations such as material add-on is excessive under, still outlet obstruction may be there is, therefore referring again to shown in Fig. 1, in another preferred embodiment of the present invention, also in above-mentioned storing unit, add stock bin dredger 8, stock bin dredger 8 is set up on the side of feed bin 2, power set and dredging bar (not shown) is included in this stock bin dredger 8, wherein dredge the inside that bar is placed in feed bin 2, its act as vibrating base 3 drive spiral take over a business 4 jointly vibrate time, used time drives dredging bar to move up and down by power set and dredges the discharge port of feed bin 2, the feed bin 2 discharge port blocking caused to avoid material moment excessive.And as another preferred technique means of the present embodiment, under the prerequisite of powerful ensureing dredging bar, consider the structure simplifying feeding device, previous power device can adopt cylinder, promotes dredging bar move up and down by aerodynamic force.
According to another embodiment of the present invention, above-mentioned valve Power Component 6 is owing to need open and close according to feeding study on period and cycle feeding quantity, for avoiding causing the cooperation between each parts disorderly in long-term opening and closing process, therefore its structure is preferably tending towards simplifying, such as in the present embodiment, valve, electro-magnet and linkage assembly are set in valve Power Component 6, are driven the open and close of valve by electro-magnet by linkage assembly.
And the storing unit mentioned in above-described embodiment in feeding device, the operation of feeder unit and blowing unit need be carried out coordinating and controlling according to logic control system, and the approach that Controlling System obtains foregoing units working order be above-mentioned LOAD CELLS 7 gather and the weight signal fed back, therefore be used in another embodiment of being more preferably of technical solution problem in the present invention, aforementioned need can be met for making in feeding device two LOAD CELLS 7, need select its installation site and specification, namely in the present embodiment the LOAD CELLS 7 supporting feed bin 2 is arranged on bin 1, and direct access control system, elect the specification of the LOAD CELLS 7 supporting hopper 5 as sophisticated sensor simultaneously, and aforesaid sophisticated sensor is also arranged on bin 1, and direct access control system, so that hopper 5 accurately can control cycle feeding quantity when blowing.
At least need in above-mentioned Controlling System to arrange programmable logic controller, as the core component of Controlling System, programmable logic controller need access above-mentioned valve Power Component 6 and vibrating base 3, its effect is specially according to the feeding study on period preset and cycle feeding quantity, and the open and close of the weight signal by-pass valve control Power Component 6 that feeds back of LOAD CELLS 7 and vibrating base 3; And all kinds of abnormal conditions in mechanical system are detected in real time according to aforementioned weight signal by inner logical program, report to the police when an abnormality is discovered, and report out of order origination point.
Shown in figure 3, when meeting above-mentioned demand for control, according to another embodiment of the present invention, above-mentioned Controlling System concrete structure is as follows: support feed bin 2 and all access programmable logic controller by weight transmitter with hopper 5 LOAD CELLS 7, and it act as, by weight transmitter, the physical signalling of LOAD CELLS 7 is converted to electrical signal input programmable logic controller; Vibrating base 3 passes through vibrating disk controller access programmable logic controller, and it act as and performs by vibrating disk controller control vibrating base 3 steering order coming from programmable logic controller unlatching or closedown and amplitude-frequency; Electro-magnet access programmable logic controller in valve Power Component 6, it act as the steering order driving valve to perform programmable logic controller unlatching or close by linkage assembly by electro-magnet.
The weight transmitter mentioned in above-described embodiment is also called weight transmitter, and be that physical quantity is transformed into electrical signal by one, the sensor exported by millivolt signal amplifies the transmitter converting standard direct current signal to through isolation.Prior art be mainly used in SMT(surface installation technique, the abbreviation of Surface Mounted Technology) in technique, for commercial run resistance-strain type signal pick-off and manufacture and design, be applicable to the LOAD CELLS of different size.
Simultaneously for making above-mentioned Controlling System operationally be convenient to artificial monitoring, and the related data record in register system operational process, also can set up industrial computer in the controls, for the record of Controlling System service data and the monitoring of running status.
When the above-mentioned Controlling System comprising PLC is combined with mechanical system, in advance by input unit given feed rate in the controls, when the LOAD CELLS 7 supporting feed bin 2 feeds back weight signal to programmable logic controller, when programmable logic controller detects in feed bin 2 and has material, namely calculated by specific algorithm according to weight signal, obtain the feeding study on period T that matches with weight of material in current feed bin 2 and cycle feeding quantity m, after startup optimization system, vibrating base 3 is energized and runs, material can take over a business 4 to enter into hopper 5 (concrete grammar is described above) from spiral, when supporting the precision wight sensor feedback weight signal of hopper 5 to programmable logic controller, when programmable logic controller detects that the weight of material in hopper 5 is more than or equal to cycle feeding quantity m, then control by vibrating disk controller the amplitude-frequency that vibrating base 3 stops vibration or adjustment vibrating base 3, after the time have passed through feeding study on period T, Controlled by Programmable Controller valve Power Component 6 opens blowing, close after discharging material, enter the next cycle after system calculates according to aforementioned algorism, thus ensure that actual feed rate is consistent with preset value.
Than that described above, also it should be noted that spoken of in this manual " embodiment ", " another embodiment ", " embodiment " etc., refer to the specific features, structure or the feature that describe in conjunction with this embodiment and be included at least one embodiment of the application's generality description.Multiple place occurs that statement of the same race is not necessarily refer to same embodiment in the description.Furthermore, when describing specific features, structure or a feature in conjunction with any embodiment, what advocate is also fall within the scope of the invention to realize this feature, structure or feature in conjunction with other embodiments.
Although with reference to multiple explanatory embodiment of the present invention, invention has been described here, but, should be appreciated that, those skilled in the art can design a lot of other amendment and embodiment, these amendments and embodiment will drop within spirit disclosed in the present application and spirit.More particularly, in the scope of, accompanying drawing open in the application and claim, multiple modification and improvement can be carried out to the building block of subject combination layout and/or layout.Except the modification of carrying out building block and/or layout is with except improvement, to those skilled in the art, other purposes also will be obvious.

Claims (9)

1. an ore smelting pot dosing device, comprise bin (1), described bin (1) is provided with in funnelform feed bin (2), it is characterized in that: described bin (1) is also provided with vibrating base (3) and takes over a business (4) with spiral, the below that (4) are placed in feed bin (2) taken over a business by described spiral, and vibrating base (3) is placed in the below that spiral takes over a business (4); Described vibrating base (3) and spiral are taken over a business (4) and are connected and fixed, and the inside that described spiral takes over a business (4) is provided with helical channel (41); The discharge port of described feed bin (2) lower end extends to spiral and takes over a business near the bottom of (4), and takes over a business the maintenance gap, bottom of (4) with spiral; Described bin (1) is also provided with hopper (5), the outlet (42) of described helical channel (41) is suspended at the top of hopper (5), and the blowing end of hopper (5) is provided with the valve Power Component (6) opened and closed for controlling blowing end; Described feed bin (2) and hopper (5) are arranged on bin (1) and support by LOAD CELLS (7).
2. ore smelting pot dosing device according to claim 1, it is characterized in that: the side of described feed bin (2) is also provided with stock bin dredger (8), described stock bin dredger (8) comprises power set and dredging bar, and dredging bar is placed in the inside of feed bin (2), moves up and down for being driven dredging bar by power set and dredge the discharge port of feed bin (2).
3. ore smelting pot dosing device according to claim 2, is characterized in that: the power set of described stock bin dredger (8) is cylinder.
4. ore smelting pot dosing device according to claim 1, is characterized in that: described valve Power Component (6) comprises valve, electro-magnet and linkage assembly, is driven the open and close of valve by electro-magnet by linkage assembly.
5. ore smelting pot dosing device according to claim 1, is characterized in that: the LOAD CELLS (7) of described support feed bin (2) is also arranged on bin (1), and access control system.
6. ore smelting pot dosing device according to claim 1, is characterized in that: the LOAD CELLS (7) of described support hopper (5) is also arranged on bin (1), and access control system.
7. the ore smelting pot dosing device according to claim 5 or 6, it is characterized in that: in described Controlling System, at least comprise programmable logic controller, described programmable logic controller also accesses valve Power Component (6) and vibrating base (3), programmable logic controller is used for according to the feeding study on period preset and cycle feeding quantity, and the open and close of the weight signal by-pass valve control Power Component (6) that feeds back of LOAD CELLS (7) and vibrating base (3).
8. ore smelting pot dosing device according to claim 7, it is characterized in that: described support feed bin (2) and hopper (5) LOAD CELLS (7) all access programmable logic controller by weight transmitter, inputting programmable logic controller for the physical signalling of LOAD CELLS (7) being converted to electrical signal by weight transmitter; Described vibrating base (3), by vibrating disk controller access programmable logic controller, performs for being controlled vibrating base (3) by vibrating disk controller the steering order coming from programmable logic controller unlatching or closedown and amplitude-frequency; Electro-magnet access programmable logic controller in described valve Power Component (6), for the steering order driving valve to perform programmable logic controller unlatching or close by linkage assembly by electro-magnet.
9. ore smelting pot dosing device according to claim 7, is characterized in that: also comprise upper industrial computer in described Controlling System, for the record of Controlling System service data and the monitoring of running status.
CN201310003813.1A 2013-01-06 2013-01-06 Ore melting furnace quantitative feeding device Active CN103058492B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310003813.1A CN103058492B (en) 2013-01-06 2013-01-06 Ore melting furnace quantitative feeding device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310003813.1A CN103058492B (en) 2013-01-06 2013-01-06 Ore melting furnace quantitative feeding device

Publications (2)

Publication Number Publication Date
CN103058492A CN103058492A (en) 2013-04-24
CN103058492B true CN103058492B (en) 2015-01-21

Family

ID=48101430

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310003813.1A Active CN103058492B (en) 2013-01-06 2013-01-06 Ore melting furnace quantitative feeding device

Country Status (1)

Country Link
CN (1) CN103058492B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104550697A (en) * 2015-01-04 2015-04-29 溧阳市联华机械制造有限公司 Automatic charging device for adding auxiliary materials into pre-coated sand mixing machine
CN107973518A (en) * 2017-11-29 2018-05-01 郑州登电玄武石纤有限公司 A kind of kiln automatic feeding device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5558691A (en) * 1994-09-13 1996-09-24 Merkle Engineers, Inc. Cullet feeder
CN2697033Y (en) * 2004-05-11 2005-05-04 无锡市华通环保设备有限公司 Fully automatic blocking-removing machine for bucket
CN101823831B (en) * 2010-06-02 2011-11-16 浙江晶兴太阳能科技有限公司 Automatic charging machine for glass furnace
CN101898679A (en) * 2010-07-30 2010-12-01 江苏丰东热技术股份有限公司 Feeder and control method of feeding
CN203065356U (en) * 2013-01-06 2013-07-17 四川航天拓鑫玄武岩实业有限公司 Quantitative feeding device of ore smelting furnace

Also Published As

Publication number Publication date
CN103058492A (en) 2013-04-24

Similar Documents

Publication Publication Date Title
CN201955663U (en) Intelligent control system for raw material conveying equipment
CN203065333U (en) Automatic feeding machine for small-flow high-precision glass kiln
CN103058492B (en) Ore melting furnace quantitative feeding device
CN104833407A (en) Weighing device for refractory brick raw materials
CN104555391B (en) Continuous transporting device and method capable of simultaneously unloading concretes by multiple points
CN203065356U (en) Quantitative feeding device of ore smelting furnace
CN206939127U (en) A kind of automatic refining, at the uniform velocity feed hopper
CN210884086U (en) Organic fertilizer material conveying control device
CN202195699U (en) Automatic metal ingot feeding device controlled by PLC (Programmable Logic Controller) in smelting furnace
CN210128625U (en) Automatic feeding system of brown corundum smelting furnace
CN102967150B (en) Energy-saving and environment-friendly feeding control system for vertical laterite-nickel ore smelting furnace controlled by PLC
CN202848664U (en) Bin type feeding control system and bin type feeding system
CN209440879U (en) A kind of quantitative automatic feeding device for steel scrap cooked flake wrapping machine
CN205274766U (en) Automatic feed control system of miropowder
CN203473864U (en) Distributing bin automatic switching device for sintering production
CN203158773U (en) Novel coal feeder
CN210128624U (en) Automatic material preparation system of brown corundum smelting furnace
CN205060997U (en) Kiln casket -like bowl charging system
CN202429364U (en) Feeding control mechanism for packaging production line
CN212882745U (en) Full-automatic ball feeding system of ball mill
CN203592672U (en) Batching and flow control system of extruder
CN204338102U (en) The automatic feed system of a kind of prebaked anode molding materials
CN203819508U (en) Non-intermittent high-speed particle counting instrument
CN204649287U (en) The weighing device of refractory brick raw material
CN203712878U (en) Powder feeding transition cabin

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant