CN106423414B - material grinding system - Google Patents

material grinding system Download PDF

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Publication number
CN106423414B
CN106423414B CN201510519427.7A CN201510519427A CN106423414B CN 106423414 B CN106423414 B CN 106423414B CN 201510519427 A CN201510519427 A CN 201510519427A CN 106423414 B CN106423414 B CN 106423414B
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grinding
vertical mill
efficient cyclone
outlet
strewing
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CN106423414A (en
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钟根
康宇
李安平
王飞
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Nanjing Kisen International Engineering Co Ltd
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Nanjing Kisen International Engineering Co Ltd
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Abstract

The present invention relates to a kind of material grinding system fields, more particularly to a kind of vertical mill grinding system being used to prepare raw material or cement, including drawing-in device, Vertical Mill, efficient cyclone, go out grind materials conveying device, deironing apparatus, elevator, feeding-distribution device, rotoclone collector, circulating fan, dust-precipitator, exhaust blower, chimney;Efficient cyclone is integrated with Vertical Mill in the present invention, have the advantages that structure type rationally, characteristics of compact layout, two material-strewing devices above and below efficient cyclone setting, material can respectively enter top and the bottom material-strewing device and carry out spreading dispersion, the subregional material concentration in separator top can be reduced, the efficiency of separation is improved;In addition, efficient cyclone also integrates drying materials, material roughing classification, the selected grading function of material, equipment investment is saved, burden is alleviated for enterprise.

Description

Material grinding system
Technical field
The present invention relates to a kind of material grinding system field more particularly to a kind of Vertical Mill powder being used to prepare raw material or cement Grinding system.
Background technology
In the production of cement industry, powder-grinding process is the most process procedure of energy consumption, in fierce market competition and tightly Under urgent economizer pressure, grinding power-saving technology, energy conservation measure is pushed to constantly bring forth new ideas, develop.Material grinding in cement industry In process, the grinding technology of roller mill especially Vertical Mill has been gradually improved and Rapid Popularization, and floor space is small, civil engineering costs It is low, the advantages that low noise wears small, long lifespan, and operation is easy with more wide application prospect, but from present The actual effect of most of vertical mill grinding system of application sees that Vertical Mill there is problems in grinding process system:
First, high-speed flow nozzle ring is arranged in traditional Vertical Mill inside, and air-flow is excessively high by wind speed after nozzle ring, up to 60~ 90m/s, grind in material rely primarily on high-speed flow and drive to powder concentrator and sorted, because of local resistance when air-flow passes through nozzle ring And the on-way resistance of improving material causes greater loss, causes entire Vertical Mill gas-flow resistance loss larger;While in order to be promoted Material, it is desirable that Vertical Mill has higher work air quantity, larger so as to cause circulating fan overall power.
Second, for common outer circulation bed-grinding equipment and system (such as roll squeezer), powder hierarchy system will be selected external, System equipment can be caused huge, it is also necessary to which the scraper-trough conveyer of current stabilization storehouse and certain altitude is set, to form certain stock column pressure;Meanwhile Powder selection device is not compact in structure arrangement with grinding device, increases manufacturing cost and civil construction cost.
Third, at present in existing Vertical Mill, including a kind of grinding only directly entered the wind to separator in Vertical Mill middle and upper part fills It sets (Chinese patent literature CN103537338A);By drying hot wind directly into separator, only to entering the material in separator It is dried, cannot be completely by drying materials when material moisture is big, moist material can be in the inlet and outlet equipotential for going out to grind elevator It sets and blocks, lead to bad adaptability of the system to material, influence whole system normal operation.
4th, at present in existing Vertical Mill outer circulation grinding system, using conventional separators principle;Material is all through top Material-strewing device spreading disperses (Chinese patent literature CN102698853A), and this spreading dispersing mode can lead to the part of separator Region material concentration is very big, and dispersion effect is bad, to influence stock grading effect, will further influence system throughput.
The present invention implements system aiming at the insufficient a kind of novel material grinding proposed existing for the above bed-grinding.It should Grinding uses outer circulation grinding process, the material being discharged after vertical mill grinding to be promoted through mechanical system, reduces material conveying energy consumption, Also reduce high speed dusty gas stream washing away and wearing to grinding roller simultaneously.
Invention content
The present invention implements system aiming at the insufficient a kind of novel material grinding proposed existing for the above bed-grinding.It should Grinding uses outer circulation grinding process, the material being discharged after vertical mill grinding to be promoted through mechanical system, reduces material conveying energy consumption, Also reduce high speed dusty gas stream washing away and wearing to grinding roller simultaneously.
In order to solve the above technical problems, the present invention realizes as follows:A kind of material grinding system is designed, including Drawing-in device, efficient cyclone, goes out grind materials conveying device, deironing apparatus, elevator, feeding-distribution device, cyclone dust collection at Vertical Mill Device, circulating fan, dust-precipitator, exhaust blower, chimney;It is characterized in that:Vertical Mill top is equipped with tremie pipe, and is set below tremie pipe It is equipped with material feed inlet, grinding disc of vertical mill, below grinding disc of vertical mill, the first air inlet, grinding disc of vertical mill both sides are set on vertical mill casing Equipped with low wind speed nozzle ring, Vertical Mill bottom is equipped with discharge port;Discharge port is connected with the one end for going out grind materials conveying device;Go out mill The other end of device for transporting objects is connected with elevator;The exit of elevator is connected with feeding-distribution device, and feeding-distribution device goes out Mouthful it is divided into two-way, is connected all the way with all the way with the first charging aperture on efficient cyclone top, another way is efficiently separated with being located at The second charging aperture of device lower part is connected;The efficient cyclone is located above Vertical Mill, and the two is connected by tremie pipe;It is high Effect separator is provided with first charging aperture and second charging aperture, is located at efficient cyclone upper and lower part, efficient cyclone Interior to be equipped with rotating cage, rotating cage top is equipped with the first material-strewing device, and rotating cage lower part is equipped with the second material-strewing device;Below second material-strewing device The side wall of shell is equipped with the second air inlet;The drawing-in device is connected with material feed inlet, fresh material by material into Material mouth feeds Vertical Mill, and Vertical Mill bottom discharge mouth is connected with grind materials conveying device is gone out, and goes out the outlet of grind materials conveying device and is promoted Machine import be connected, lift outlet connect feeding-distribution device import, feeding-distribution device outlet is divided into two-way, all the way on efficient cyclone The first charging aperture in portion is connected, and material enters the first material-strewing device positioned at efficient cyclone rotating cage top;All the way with positioned at height The second charging aperture for imitating separator lower part is connected, and material enters the second material-strewing device positioned at efficient cyclone lower part;First into Air port and the second air inlet and the hot air duct from drying heat source are connected or are directly connected to cold air duct, and efficient cyclone exports It is connected with rotoclone collector, rotoclone collector air outlet connects circulating fan, and circulating fan outlet is divided into two-way, wherein connecting all the way The first air inlet and the second air inlet are connect, another way connects dust-precipitator, dust-precipitator outlet connection exhaust blower, exhaust blower outlet and cigarette Chimney connects.
As an improvement of the present invention, the low wind speed nozzle ring ejection wind speed is not more than 30m/s, and its draught area It is adjustable.
As an improvement of the present invention, system is improved according to the characteristic of institute's grinding material, is given birth to when for grinding When material, it may contain bulk materials in grind materials since it goes out, vibrating screening is set between the elevator and feeding-distribution device Separating device, the outlet of vibrating screening separating device coarse powder are connected with material feed inlet, and the outlet of vibrating screening separating device fine powder is filled with sub-material Feed inlet is set to be connected.
As an improvement of the present invention, drawing-in device is the device of ribbon conveyer, elevator or both combination.
Another as the present invention improves, and goes out grind materials conveying device and is ribbon conveyer, vibratory feeder or unloads Expect scraper-trough conveyer.
Material grinding system of the present invention uses outer circulation grinding process, material to be promoted, reduced through mechanical system Material conveying energy consumption and energy consumption of unit product, using from the lower case side wall below grinding disc of vertical mill the first air inlet and separation Second air inlet of the lower case side wall below the second spreading disk of device air inlet mode simultaneously, in the first air inlet into a part Hot wind achievees the effect that tentatively to dry material during across falling material, avoids material defeated to promotion greatly due to moisture Send equipment to impact, this part hot wind pass through low wind speed nozzle ring, air velocity be not more than 30m/s, thus system resistance compared with Cycle Vertical Mill can be greatly reduced in traditional, and the second air inlet is arranged on efficient cyclone the second material-strewing device lower sides, The fraction can reduce the air velocity and drag losses at nozzle ring without the low wind speed nozzle ring of Vertical Mill, relatively all from Vertical Mill lower part air inlet mode, system resistance further decrease, and the air-flow at this can be by the second material-strewing device of efficient cyclone point The fines in material after dissipating is brought into sorting area and is sorted;In addition, all air inlets are tangential air inlet so that mill in and The flow field of separator interior is more uniformly distributed.
Furthermore, it is possible to vibrating screening separating device is arranged in lift outlet according to material characteristic, it is relatively large when having in material When material, bulk materials separation is first directly entered by mill by vibration screening device, undersize material is sorted again, and system is to material Applicability is stronger.
The positive effect of the present invention:
Efficient cyclone is integrated with Vertical Mill in the present invention, have the advantages that structure type rationally, characteristics of compact layout, Two material-strewing devices, material can respectively enter top and the bottom material-strewing device and carry out spreading dispersion, can drop up and down for efficient cyclone setting The low subregional material concentration in efficient cyclone top improves the efficiency of separation;In addition, efficient cyclone also collects drying materials, object Expect that roughing classification, the selected grading function of material in one, save equipment investment, burden is alleviated for enterprise.Specifically include with Lower aspect:
1, using outer circulation vertical mill grinding technique, bed-grinding advantage has been played, while material realizes that outer circulation promotion is defeated It send to efficient cyclone, compared with material, all the Vertical Mill through airlift is more energy saving, and then reduces unit of the product energy consumption, drops simultaneously Low erosive wear of the high speed dusty gas stream to grinding roller, is conducive to extend service life of equipment.
2, using from the lower case below the second spreading disk of lower case air inlet and separator below grinding disc of vertical mill Air inlet mode reaches during across falling material to object air inlet in Vertical Mill lower part air inlet into a part of hot wind simultaneously Expect the effect tentatively dried, avoids material since moisture is impacted to promoting conveying equipment greatly, this part hot wind passes through air-flow Nozzle ring flow velocity is not more than 30m/s, thus the more traditional interior cycle Vertical Mill of system resistance can be greatly reduced, in efficient cyclone the Air inlet is arranged in two material-strewing device lower parts, which can reduce the air-flow at nozzle ring without Vertical Mill air current spray nozzle ring Speed and drag losses, relatively all from Vertical Mill lower part air inlet mode, system resistance further decreases, and the air-flow at this can will be high The fines in material after effect the second material-strewing device of separator dispersion is brought into sorting area and is sorted;In addition, all air inlets It is tangential air inlet so that in the mill and flow field of separator interior is more uniformly distributed.Not similar set-up mode in the prior art, The set-up mode compared with prior art, has significant technique effect simultaneously.
3, the efficient cyclone being arranged in the system is located above Vertical Mill ontology, and structure type is reasonable, characteristics of compact layout, efficiently Separator integrates drying materials, material roughing classification, the selected classification of material, meanwhile, efficient cyclone is in upper and lower part It is respectively provided with material-strewing device, can further improve material dispersion effect, realization system carries production consumption reduction.
4, cold blast sliding valve a is set in the first air inlet, cold blast sliding valve b is arranged in the second air inlet, be conducive to according to material moisture and Grinding operating mode adjusts control Vertical Mill lower part air inlet and the second air inlet wind-warm syndrome by cold blast sliding valve, makes Vertical Mill stable and high effective operation.
Description of the drawings
Understand to make the objectives, technical solutions, and advantages of the present invention clearer, With reference to embodiment and Attached drawing is described in further details the present invention.Here, the exemplary embodiment and its explanation of the present invention are for explaining this hair It is bright but not as a limitation of the invention.
Fig. 1 is the structure and principle schematic of embodiment of the present invention
Fig. 2 is a kind of improved structure of the present invention and principle schematic
In figure, 1 drawing-in device, 2 the first air inlets of Vertical Mill 2-1
The low wind speed nozzle rings of 2-2 material feed inlet 2-3 grinding disc of vertical mill 2-4
3 efficient cyclone 3-1 first charging aperture 3-2 second charging apertures
The second air inlets of 3-3 the second material-strewing device 3-4 4 go out grind materials conveying device
5 deironing apparatus, 6 elevator, 7 feeding-distribution device
8 rotoclone collector, 9 circulating fan, 10 dust-precipitator
11 exhaust blower, 12 chimney, 13 vibrating screening separating device
14 tremie pipes
Specific implementation mode
As shown in Figure 1, material grinding system of the present invention, including drawing-in device 1, Vertical Mill 2, efficient cyclone 3, go out mill Device for transporting objects 4, deironing apparatus 5, elevator 6, feeding-distribution device 7, rotoclone collector 8, circulating fan 9, dust-precipitator 10, air draft Machine 11 and chimney 12;
It is characterized in that:2 top of institute's Vertical Mill is equipped with tremie pipe 14, and be provided with below tremie pipe material feed inlet 2-2, Below grinding disc of vertical mill 2-3, the first air inlet 2-1 is arranged in grinding disc of vertical mill 2-3 on 2 shell of Vertical Mill, the both sides grinding disc of vertical mill 2-3 are set There are low wind speed nozzle ring 2-4,2 bottom of Vertical Mill to be equipped with discharge port;The efficient cyclone 3 is located above Vertical Mill ontology, efficiently 3 top of separator is equipped with first charging aperture 3-1, is equipped with second charging aperture 3-2 in the lower part of efficient cyclone, efficient cyclone turns The first material-strewing device is arranged in cage top, and the second material-strewing device 3-3 is arranged in efficient cyclone rotating cage lower part;In the second material-strewing device 3- Second air inlet 3-4 is set below 3, on the shell of the efficient cyclone 3;The drawing-in device 1 and material feed inlet 2-2 It is connected, fresh material enters grinding disc of vertical mill 2-3 by material feed inlet 2-2, and 2 bottom discharge mouth of Vertical Mill is filled with grind materials conveying is gone out It sets 4 to be connected, goes out the outlet of grind materials conveying device 4 and be connected with 6 import of elevator, the outlet of elevator 6 connection 7 entrance of feeding-distribution device, The outlet of feeding-distribution device 7 is divided into two-way, is connected all the way with the first charging aperture 3-1 on 3 top of efficient cyclone, and material, which enters, is located at height Imitate first material-strewing device on 3 rotating cage top of separator;It is connected all the way with the second charging aperture 3-2 positioned at efficient cyclone lower part, Material enters the second material-strewing device 3-3 positioned at 3 lower part of efficient cyclone;First air inlet 2-1 and the second air inlet 3-4 with come It is connected from the hot air duct of drying heat source or is directly connected to cold air duct, the outlet of efficient cyclone 3 is connected with rotoclone collector 8, 8 air outlet of rotoclone collector connects circulating fan 9, and the outlet of circulating fan 9 is divided into two-way, wherein connecting 2 air inlet of Vertical Mill all the way 3 air inlet 3-4 of 2-1 and efficient cyclone, another way connect dust-precipitator 10, the outlet of dust-precipitator 10 connection exhaust blower 11, exhaust blower 11 outlets are connect with chimney 12.
First material-strewing device of the efficient cyclone 3 is spreading disk.
The operation principle of the present invention is that:
A kind of material grinding system, technical process are:Material from proportioning station feeds object by drawing-in device 1 Expect feed inlet 2-2, and dropped down onto after material feed inlet 2-2 and carry out grinding on grinding disc of vertical mill 2-3, after grinding disc of vertical mill 2-3 grindings Material draw off Vertical Mill 2 through grinding disc of vertical mill 2-3 scrapers, until going out grind materials conveying device 4, go out in grind materials conveying device 4 Deironing apparatus 5 is set, by material lifting and sub-material dress is fed for removing the magnetic metal substance in material, then by elevator 6 7 are set, after sub-material, material feeds the first charging aperture 3-1 and second charging aperture 3-2 of efficient cyclone 3, from first charging aperture 3- 1 material entered carries out spreading dispersion, object after dispersion by the first material-strewing device being arranged above 3 inner rotating cage of efficient cyclone Material is sorted into efficient cyclone 3, and the material entered from second charging aperture 3-2 is then by being arranged under efficient cyclone 3 The second material-strewing device 3-3 in portion carries out spreading dispersion, and the fines after dispersion brings efficient cyclone 3 into through wind and carries out classification and sorting. The hot wind for carrying out self-heat power enters from the first air inlet 2-1 and the second air inlet 3-4, and the hot wind that the first air inlet 2-1 enters passes through The material that grinding disc of vertical mill 2-3 is scraped, and material is tentatively dried, enter efficient cyclone 3, object after exchanging heat with material parts For material after the sorting of efficient cyclone 3, tremie pipe 14 of the coarse powder through 2 central upper portion position of Vertical Mill returns to Vertical Mill 2, and with from The material of material feed inlet 2-2 converges and falls to grinding disc of vertical mill 2-3;Qualified finished product after 3 classification and sorting of efficient cyclone Rotoclone collector 8 is then brought by wind and carries out finished product collection, after carrying out gas solid separation in rotoclone collector 8, exhaust gas is by circulated air The extraction of machine 9 is divided into two-way, returns to the first air inlet 2-1 and the second air inlet 3-4 all the way, and another way reaches dust-precipitator 10 and carries out only After change processing, is sent to chimney 12 through exhaust blower 11 and be discharged into air.
Embodiment as an improvement of the present invention, the low wind speed nozzle ring spray wind speed and are not more than 30m/s, and Its draught area is adjustable.
Embodiment as an improvement of the present invention changes as shown in Fig. 2, carrying out system according to the characteristic of grinding material It is kind, when equipment grinding raw material, bulk materials may be contained in grind materials since it goes out, setting oscillatory type is exported in elevator 6 Screening plant 13, the outlet of 13 coarse powder of vibrating screening separating device are connected with material feed inlet 2-2, the fine powder of vibrating screening separating device 13 Outlet is connected with 7 feed inlet of feeding-distribution device.Its working principle is that:Material is exported from elevator 6 to flow out, and send to oscillatory type and sieve Device 13 carries out vibrosieve, and wherein coarse powder is sent from coarse powder outlet to material feed inlet 2-2, with the fresh material from proportioning station It is fed to together in Vertical Mill 2 and re-starts grinding;Fine powder is then sent to feeding-distribution device 7 and carries out sub-material, and material is through the first charging after sub-material Mouth 3-1 and second charging aperture 3-2 enters efficient cyclone 3 and is sorted.
It is improved as embodiments of the present invention, the first charging aperture 3-1 is set as three or three or more, each to feed Circumferentially to being evenly arranged mouthful above the first material-strewing device, to realize uniformly distributed and spreading the uniformity of material.
In the present invention by the way of being entered the wind simultaneously from the first air inlet 2-1 and the second air inlet 3-4;In the first air inlet Hot wind is blown at 2-1, hot wind tentatively dries material during across falling material, avoids material big due to moisture It is adversely affected to promoting conveying equipment;Low wind speed nozzle ring 2-4 areas are adjustable, and it is big to control air quantity according to the actual operation It is small, hot wind may be implemented and be not more than 30m/s across air current spray nozzle circulation speed, to make in the present invention system resistance of Vertical Mill 2 with Cycle Vertical Mill 2 is compared and can be greatly reduced in traditional;Second material-strewing device lower part of efficient cyclone 3 is equipped with the second air inlet 3-4, The part enters air-flow without too low wind speed nozzle ring 2-4, can reduce the speed at low wind speed nozzle ring 2-4 and be damaged with impact force It loses, compared with the mode all entered the wind from the first air inlet 2-1, system resistance further decreases, and the air-flow at this can will be high The fines in material in effect separator 3 after the dispersion of second material-strewing device is brought into sorting area and is sorted;Meanwhile it is all into Wind is tangential air inlet so that in Vertical Mill 2 and the airflow field of separator interior is more uniformly distributed.
Cold blast sliding valve b is set in addition, being arranged at cold blast sliding valve a, the second air inlet 3-4 at the first air inlet 2-1, can be passed through The wind-warm syndrome of cold blast sliding valve adjustment control the first air inlet 2-1 and the second air inlet 3-4;When enter Vertical Mill 2 moisture content of material compared with Gao Shi, make the first air inlet 2-1 wind-warm syndrome be higher than the second air inlet 3-4 wind-warm syndrome, enhance the moisture drying function of material, avoid because Moisture content of material is excessively high to cause that grinding effect is poor, conveying equipment blocks;When the material moisture for entering Vertical Mill 2 When content not high (or being unlikely to influence mill efficiency and material conveying), then the first air inlet 2-1 wind-warm syndrome can be suitably reduced, with It maintains grinding area material to integrate moisture, is conducive to the stable operation of Vertical Mill 2;On the contrary, the second air inlet 3-4 wind-warm syndrome then can be with It properly increases, is then conducive to control the moisture in finished product materials.
Efficient cyclone 3 is integrated with Vertical Mill 2 in the present invention, reasonable, characteristics of compact layout excellent with structure type Two material-strewing devices up and down are arranged in point, efficient cyclone 3, and material can respectively enter top and the bottom material-strewing device and carry out spreading dispersion, The subregional material concentration in 3 top of efficient cyclone can be reduced, the efficiency of separation is improved;In addition, efficient cyclone 3 also collects material baking Dry, material roughing classification, the selected grading function of material save equipment investment in one, and burden is alleviated for enterprise.

Claims (7)

1. a kind of material grinding system, including drawing-in device (1), Vertical Mill (2), efficient cyclone (3), go out grind materials conveying device (4), deironing apparatus (5), elevator (6), feeding-distribution device (7), rotoclone collector (8), circulating fan (9), dust-precipitator (10), row Wind turbine (11), chimney (12);
It is characterized in that:Vertical Mill (2) top setting material feed inlet (2-2);Lower case below grinding disc of vertical mill (2-3) First air inlet (2-1) is set on body;The both sides grinding disc of vertical mill (2-3) are equipped with low wind speed nozzle ring (2-4);Vertical Mill (2) bottom is set There is discharge port;The efficient cyclone (3) is located above Vertical Mill (2) ontology;Efficient cyclone (3) is provided with first charging aperture (3-1) and second charging aperture (3-2), is located at the upper and lower part of efficient cyclone (3);The rotating cage of efficient cyclone (3) The first material-strewing device is arranged in top;The second material-strewing device (3-3) is arranged in the rotating cage lower part of efficient cyclone (3);Efficient cyclone (3) the second air inlet (3-4) is set in the housing sidewall below the second material-strewing device (3-3);The drawing-in device (1) with Material feed inlet (2-2) is connected, and fresh material feeds grinding disc of vertical mill (2-3) grinding, Vertical Mill (2) by material feed inlet (2-2) Bottom discharge mouth is connected with grind materials conveying device (4) is gone out, and goes out grind materials conveying device (4) outlet and elevator (6) import phase Even, elevator (6) outlet connection feeding-distribution device (7) entrance, feeding-distribution device (7) outlet is divided into two-way, all the way with first charging aperture (3-1) is connected, and material enters the first material-strewing device positioned at the rotating cage top of efficient cyclone (3), another way and the second charging Mouth (3-2) is connected, and material enters the second material-strewing device (3-3) positioned at efficient cyclone (3) lower part;Efficient cyclone (3) goes out Mouth is connected with rotoclone collector (8), and rotoclone collector (8) air outlet connects circulating fan (9), and circulating fan (9) outlet is divided into Two-way, wherein being separately connected the first air inlet (2-1) and the second air inlet (3-4) all the way, another way connects dust-precipitator (10), receives Dirt device (10) outlet connection exhaust blower (11), exhaust blower (11) outlet are connect with chimney (12).
2. material grinding system as described in claim 1, it is characterised in that:Cold wind is set at first air inlet (2-1) Cold blast sliding valve b is arranged in valve a at the second air inlet (3-4).
3. material grinding system as described in claim 1, it is characterised in that:The low wind speed nozzle ring (2-4) sprays wind speed No more than 30m/s, and its draught area is adjustable.
4. material grinding system as described in claim 1, it is characterised in that:It is described go out grind materials conveying device (4) in setting Deironing apparatus (5).
5. material grinding system as described in claim 1, it is characterised in that:First spreading of the efficient cyclone (3) fills It is set to spreading disk.
6. material grinding system as described in claim 1, it is characterised in that:The quantity of the first charging aperture (3-1) is arranged It it is three or more, each first charging aperture is above the first material-strewing device and circumferentially to being evenly arranged.
7. material grinding system as described in claim 1, it is characterised in that:Elevator (6) outlet is provided with oscillatory type Screening plant (13), vibrating screening separating device (13) has to be exported at two, and respectively coarse powder outlet is exported with fine powder;Coarse powder export with Material feed inlet (2-2) is connected, and the fine powder outlet is connected with feeding-distribution device (7) entrance.
CN201510519427.7A 2015-08-21 2015-08-21 material grinding system Active CN106423414B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111266169A (en) * 2018-12-04 2020-06-12 唐山高压电瓷有限公司 System and method for preparing powder by isostatic pressing dry-process molding process of high-voltage porcelain insulator
CN111617867A (en) * 2020-05-13 2020-09-04 南阳中联卧龙水泥有限公司 Raw material grinding system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN85108678A (en) * 1984-12-04 1986-06-10 三菱重工业株式会社 Flour mill
DE4124416A1 (en) * 1991-07-23 1993-01-28 Krupp Polysius Ag DEVICE AND METHOD FOR CRUSHING GROUND DIFFERENT GRAIN
CN201799305U (en) * 2010-09-02 2011-04-20 崔信明 External circulation type vertical mill
CN203470115U (en) * 2013-08-09 2014-03-12 成都建筑材料工业设计研究院有限公司 High-water-content chalk drying grinding vertical mill
CN104640634A (en) * 2013-03-26 2015-05-20 德国莱歇公司 Method and vertical mill for grinding a product to be milled
CN204816700U (en) * 2015-08-21 2015-12-02 南京凯盛国际工程有限公司 Material grinding system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN85108678A (en) * 1984-12-04 1986-06-10 三菱重工业株式会社 Flour mill
DE4124416A1 (en) * 1991-07-23 1993-01-28 Krupp Polysius Ag DEVICE AND METHOD FOR CRUSHING GROUND DIFFERENT GRAIN
CN201799305U (en) * 2010-09-02 2011-04-20 崔信明 External circulation type vertical mill
CN104640634A (en) * 2013-03-26 2015-05-20 德国莱歇公司 Method and vertical mill for grinding a product to be milled
CN203470115U (en) * 2013-08-09 2014-03-12 成都建筑材料工业设计研究院有限公司 High-water-content chalk drying grinding vertical mill
CN204816700U (en) * 2015-08-21 2015-12-02 南京凯盛国际工程有限公司 Material grinding system

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