CN209174114U - Using the two fans system of roller mill - Google Patents

Using the two fans system of roller mill Download PDF

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Publication number
CN209174114U
CN209174114U CN201821265903.2U CN201821265903U CN209174114U CN 209174114 U CN209174114 U CN 209174114U CN 201821265903 U CN201821265903 U CN 201821265903U CN 209174114 U CN209174114 U CN 209174114U
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China
Prior art keywords
air
hot
roller mill
collector
fans
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CN201821265903.2U
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Inventor
侯兴远
杨萍
胡泽武
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LOESCHE (SHANGHAI) CO Ltd
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LOESCHE (SHANGHAI) CO Ltd
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Abstract

The utility model proposes a kind of two fans systems using roller mill, and two fans system includes: roller mill;Dust collection device, the air inlet of dust collection device is connected with the air outlet of roller mill, discharge port and finished product collection device connect;And hot-blast stove, the air inlet of hot-blast stove is connected to the air outlet of dust collection device by pipeline to receive the part hot wind being discharged from the air outlet of dust collection device, and the air outlet of hot-blast stove is connected to the air inlet of roller mill by pipeline.This takes full advantage of the advantage that rotoclone collector efficient low-resistance handles a large amount of dusty gases using the two fans system of roller mill, reduce the load of bag collector, simultaneously in such a way that part circulated air enters in the cooling that hot-blast stove participates in high temperature wind, the consumption of fuel is reduced, it is achieved that energy conservation, consumption reduction, purpose environmentally friendly, operation maintenance cost is low.

Description

Using the two fans system of roller mill
Technical field
The utility model relates to a kind of grinding systems, more particularly, to a kind of two fans system using roller mill.
Background technique
Currently, to be that the current country generallys use using the single-fan system of roller mill grinding slag or cement more mature Grinding process system, this system include roller mill, bag collector, dust-precipitator blower, hot-blast stove.This tradition grinding process system Have many advantages, such as that degree of recognition is high, system is simple, yield is high, quality is stable.But in order to meet GB4915-2013 " cement industry Atmosphere pollutants emission standards " in granular material discharged requirement, the system bag collector for needing to select specification very big, to lead The problem of causing high production run maintenance cost, dust-precipitator blower power consumption height, taking up a large area;In addition, for for providing system The hot-blast stove of heat source, caused due to its design feature cannot by system hot wind introduce hot-blast stove, can only be in systems with from Line form provides hot wind for system, and not only without the hot wind using grinding system, while fuel combustion generation contains SO2Gas It is discharged into atmosphere, such system not only haves the defects that energy consumption is high, and also results in pollution to environment.
Utility model content
In order to solve the above technical problems, the utility model proposes a kind of two fans system using roller mill, two fans System includes:
Roller mill;
Dust collection device, the air inlet of dust collection device is connected with the air outlet of roller mill, discharge port and finished product collection device Connection;With
The air inlet of hot-blast stove, hot-blast stove is connected to the air outlet of dust collection device by pipeline to receive from dust collection device The part hot wind of air outlet discharge, and the air outlet of hot-blast stove is connected to the air inlet of roller mill by pipeline.
In one embodiment, dust collection device includes rotoclone collector, circulating fan, bag collector and bag collector wind Machine, in which:
The air inlet of rotoclone collector is connected to the air outlet of roller mill by air hose, and the discharge port of rotoclone collector passes through Pipeline is connected to finished product collection device;
The air inlet of circulating fan is connected to the air outlet of rotoclone collector, the air outlet difference of circulating fan by air hose It is connected with the air inlet of the air inlet of hot-blast stove and bag collector;
The air outlet of bag collector is connected to the air inlet of bag collector blower by air hose, and the discharge port of bag collector connects It is connected to finished product collection device.
In one embodiment, rotoclone collector has two rotations of the top and bottom for being separately positioned on rotoclone collector Wind dust-precipitator air outlet, and two rotoclone collector air outlets pass through air hose respectively and are connected to circulating fan.
In one embodiment, rotoclone collector further includes the revolution lock wind for the discharge outlet that rotoclone collector is arranged in Valve.
In one embodiment, the discharge port of bag collector passes sequentially through pipeline and skewed slot is connected to finished product collection device.
In one embodiment, it is provided on the pipeline for connecting the air outlet of circulating fan and the air inlet of hot-blast stove Electric control valve.
In one embodiment, two fans system further includes air blast pipe, air blast pipe with for connecting hot-blast stove Air outlet be connected with the pipeline of the air inlet of roller mill, with adjust be sent into roller mill hot wind temperature.
The utility model proposes the two fans system using roller mill, take full advantage of at rotoclone collector efficient low-resistance The advantage for managing a large amount of dusty gases reduces the load of bag collector 80%, so that the life-span of the filter bag of bag collector extends 2 times of left sides The right side, while in such a way that part circulated air enters in the cooling that hot-blast stove participates in high temperature wind, the consumption of fuel is reduced, because This two fans system disclosed by the utility model using roller mill grinding slag or cement realizes energy conservation, consumption reduction, environmental protection, fortune The low purpose of maintenance cost is sought, reduces about 10% compared to existing grinding system power consumption, and is unique process system, compact Design makes engineering overall cost reduce 15% or more, and installation period shortens about 1 month.
Detailed description of the invention
Fig. 1 is to be shown according to the structure of the two fans system using roller mill of an exemplary embodiment of the utility model It is intended to.
Specific embodiment
Illustrative, non-limiting embodiment of the utility model are described in detail with reference to the accompanying drawings, to practical new according to this Type is further described using the two fans system of roller mill.
Referring to Fig.1, the two fans system disclosed by the utility model using roller mill include roller mill 1, dust collection device and Hot-blast stove 4, wherein dust collection device is connect to collect the hot wind of the finished product fine powder after being mixed with grinding with roller mill 1, collects fine powder, Hot-blast stove 4 is connected respectively to obtain hot wind from dust collection device and will return again after Hot-blast Heating with dust collection device and roller mill 1 It is back to roller mill 1.
Roller mill 1 is used to for the broken simultaneously grinding of material being connected at the machinery of finished product fine powder by device for transporting objects External material storage device is to obtain material.Roller mill 1 is the equipment for grinding slag or cement commonly used in the art, at this It is not particularly limited in utility model.
The air inlet of dust collection device is connected with the air outlet of roller mill 1, discharge port and finished product collection device are connect.Through roller Formula grinds the material after 1 grinding and is known as fine powder, and fine powder through the air outlet of roller mill 1 enters dust collection device with hot-air flow.It gathers dust Equipment is acted on by centrifugal force and separates air-flow with fine powder, and so that fine powder is fallen into finished product collection device by gravity, incited somebody to action Hot wind be discharged after further purifying, to realize purpose of gathering dust, while reducing air pollution most possibly.
Use hot-blast stove that hot wind to required temperature, is then sent into 1 conduct of roller mill by cold air heating in traditional handicraft The drying medium of granular material.In two fans system disclosed by the utility model, the air inlet of hot-blast stove 4 is connected by pipeline To the air outlet of dust collection device, while the air outlet of hot-blast stove 4 is connected to the air inlet of roller mill 1 by pipeline, will gather dust Equipment air outlet discharge hot wind a part be sent into hot-blast stove 4 be sent into hot-blast stove 4 in cold wind together with by hot-blast stove 4 into The heating of one step is finally sent into roller mill 1 and is used.In this way, due to the hot wind being discharged in dust collection device temperature with higher, by this Fuel consumed by the fine powder drying temperature that part Hot-blast Heating is required to technique will decline to a great extent, to reach energy saving Effect.Make the thermal efficiency ratio routine of hot-blast stove 4 by the way that the hot wind in dust collection device is introduced hot-blast stove 4 by test of many times 4 thermal efficiency of hot-blast stove improves about 40%, and fuel consumption reduces 30% or more.On the other hand, it is being applied to manufacture of cement Example in, the gas of the moisture content generated in the material and grinding process containing CaO ingredient of 1 grinding of roller mill is sufficiently mixed Afterwards, hot-blast stove 4 is sent to by dust collection device, the SO generated in hot-blast stove 4 with burning2High-temperature gas meets, and can play very Effect of the good system from desulfurization.Preferably, which further includes air blast pipe 7.Air blast pipe 7 with for connecting The air outlet for connecing hot-blast stove 4 is connected to the pipeline of the air inlet of roller mill 1, to be sent into air into the pipeline according to operating condition, with The hot wind mixing being discharged in hot-blast stove, to adjust the temperature for being sent into the hot wind of roller mill 1.
Illustrate the workflow of the two fans system disclosed by the utility model using roller mill below with reference to Fig. 1.Pass through The material transmission that conveying device stores external material storage device is to roller mill 1;Material in roller mill 1 after grinding, The hot wind being sent into from hot-blast stove 4 dries fine powder and is further fed into dust collection device;Dust collection device is to the hot wind for being mixed with fine powder It gathers dust, fine powder is sent into finished product collection device from the discharge port of dust collection device under the effect of gravity;From the outlet air of dust collection device Hot wind a part after the separation of mouthful discharge discharge, a wind after purification enter by pipeline the air inlet of hot-blast stove 4, into The hot wind for entering hot-blast stove 4 is sent into roller mill 1 after reheating in hot-blast stove 4 and is followed again as the drying medium of fine powder Ring utilizes.As shown in the above description, in the two fans system disclosed by the utility model using roller mill, by that will be set from gathering dust The hot wind of standby middle discharge introduces hot-blast stove 4, and the thermal efficiency of hot-blast stove 4 greatly improved and reduce fuel consumption, and in water Realization system is from desulfurization effect in the example of mud grinding, therefore has good technical effect and economic benefit.
With continued reference to Fig. 1, dust collection device includes rotoclone collector 2, circulating fan 3, bag collector 5 and bag collector blower 6。
Rotoclone collector 2 makes the air-flow containing fine powder do spinning movement, is separated fine powder simultaneously from air-flow by means of centrifugal force It is trapped on the inner wall of rotoclone collector 2, finished product grinding falls into finished product collection device under the effect of gravity.Rotoclone collector 2 Air inlet is connected to the air outlet of roller mill 1, discharge port by air hose and is connected to finished product collection device by pipeline.In a reality It applies in example, rotoclone collector 2 has two rotoclone collector outlet air of the top and bottom for being separately positioned on rotoclone collector 2 Mouthful, and two rotoclone collector air outlets pass through air hose respectively and are connected to circulating fan 3.In this way, two rotoclone collectors go out Air port improves the outlet air efficiency of rotoclone collector 2, to improve its dust collection effect.According to the statistics knot of test of many times Fruit, the dust-collecting efficiency of rotoclone collector 2 disclosed by the utility model make the gas into subsequent bag collector 5 90% or more The dust content of stream reduces about 85%, thus reduce the load that gathers dust of bag collector 5, its service life is made to improve 2 times or more, And the specification of bag collector 5 correspondingly reduces about 30%.It follows that by using the rotoclone collector of this special construction 2 extend the overall work service life of two fans system, and reduce engineering cost.Further, rotoclone collector 2 further includes setting The revolution air valve in the discharge outlet of rotoclone collector 2 is set, to play the effect of lock wind, improves gathering dust for rotoclone collector 2 Efficiency.
The air inlet of circulating fan 3 is connected to the air outlet of rotoclone collector 2 by air hose, in rotoclone collector 2 Negative pressure is formed in roller mill 1, the hot wind containing fine powder in roller mill 1 is made to enter rotoclone collector 2 under the action of negative pressure simultaneously Travel further into circulating fan 3.The air outlet of circulating fan 3 air inlet with the air inlet of hot-blast stove 4 and bag collector 5 respectively It is connected, the hot wind for containing a small amount of fine powder is respectively fed to hot-blast stove 4 and bag collector 5.In this way, being sent into bag by circulating fan 3 The air quantity of dust-precipitator 5 and dustiness in gas reduce many relative to traditional grinding process, the specification of bag collector 5 also with Reduction, the concentration of emission of bag collector 5 easily meets national standard.
The air outlet of bag collector 5 is connected to the air inlet of bag collector blower 6 by air hose, in bag collector blower Make the hot wind into bag collector 5 pass through the filter bag in bag collector 5 under 6 suction functions generated to be filtered.In this reality With in the novel disclosed two fans system using roller mill, bag collector 5 is only subjected to the negative pressure of bag collector blower 6, than The negative pressure that bag collector 5 is born in the grinding process generallyd use at present reduces about 70%, the air leak rate of air curtain drop of bag collector 5 Low 80% or more.It is transferred into finished product collection device through a small amount of fine powder that bag collector 5 is collected, fine powder is completed and carries out secondary receipts Collection.The hot wind being discharged from bag collector 5 is discharged into atmosphere by air hose by the air outlet of bag collector blower 6.Implement at one In example, the discharge port of bag collector 5 passes sequentially through pipeline and skewed slot is connected to finished product collection device.But bag collector 5 at The connection type of product collection device can be any powder conveying apparatus commonly used in the art, be not specially limited herein.
In one embodiment, it is arranged on the air outlet of circulating fan 3 and the pipeline of the air inlet of hot-blast stove 4 for connecting There is electric control valve (not shown), roller mill 1 is met to the water of supplied materials with the air circulation that this balanced hot-blast stove 4 needs Divide drying demand.
The workflow of the two fans system disclosed by the utility model using roller mill is described in detail below with reference to Fig. 1. The material transmission for being stored external material storage device by conveying device starts circulating fan 3 and bag collector to roller mill 1 Blower 6, to generate negative pressure in roller mill 1, rotoclone collector 2 and bag collector 5 respectively;Material passes through powder in roller mill 1 After mill, the hot wind being sent into from hot-blast stove 4 dries fine powder, and the hot wind containing fine powder enters rotoclone collector 2 under the action of negative pressure; Under the action of the centrifugal force, be separated and fed to finished product collection device into the fine powder in the hot wind of rotoclone collector 2, hot wind via Two air outlets and circulating fan 3 of rotoclone collector 2 respectively enter bag collector 5 and hot-blast stove 4;Into the heat of hot-blast stove 4 Wind by reheating and is sent into roller mill 1 in hot-blast stove 4, again as the drying medium of fine powder, recycles;To entrance The hot wind secondary dust collection of bag collector 5, the fine powder of collection enters finished product collection device, after filtration, purification reaches national emission standard Air-flow pass through bag collector blower 6 under the action of negative pressure and be discharged into atmosphere.

Claims (7)

1. a kind of two fans system using roller mill, which is characterized in that the two fans system includes:
Roller mill;
Dust collection device, the air inlet of the dust collection device is connected with the air outlet of the roller mill, discharge port and finished product are collected Device connection;With
Hot-blast stove, the air inlet of the hot-blast stove are connected to the air outlet of the dust collection device by pipeline to receive from the receipts The part hot wind of the air outlet discharge of dirt equipment, and the air outlet of the hot-blast stove is connected to the roller mill by pipeline Air inlet.
2. two fans system according to claim 1, which is characterized in that the dust collection device includes rotoclone collector, follows Ring blower, bag collector and bag collector blower, in which:
The air inlet of the rotoclone collector is connected to the air outlet of the roller mill by air hose, and the rotoclone collector goes out Material mouth is connected to the finished product collection device by pipeline;
The air inlet of the circulating fan is connected to the air outlet of the rotoclone collector by air hose, and the circulating fan goes out Air port is connected with the air inlet of the air inlet of the hot-blast stove and the bag collector respectively;And
The air outlet of the bag collector is connected to the air inlet of the bag collector blower by air hose, the bag collector Discharge port is connected to the finished product collection device.
3. two fans system according to claim 2, which is characterized in that the rotoclone collector, which has, is separately positioned on institute State two rotoclone collector air outlets of the top and bottom of rotoclone collector, and described two rotoclone collector air outlets point The circulating fan is not connected to by air hose.
4. two fans system according to claim 2, which is characterized in that the rotoclone collector further includes being arranged described The revolution air valve of the discharge outlet of rotoclone collector.
5. two fans system according to claim 2, which is characterized in that the discharge port of the bag collector passes sequentially through pipe Road and skewed slot are connected to the finished product collection device.
6. two fans system according to claim 2, which is characterized in that for connect the air outlet of the circulating fan with Electric control valve is provided on the pipeline of the air inlet of the hot-blast stove.
7. two fans system according to claim 1, which is characterized in that the two fans system further includes air air inlet Pipe, the air blast pipe are connected with the air outlet for connecting the hot-blast stove with the pipeline of the air inlet of the roller mill It connects, to adjust the temperature for the hot wind for being sent into the roller mill.
CN201821265903.2U 2018-08-07 2018-08-07 Using the two fans system of roller mill Active CN209174114U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821265903.2U CN209174114U (en) 2018-08-07 2018-08-07 Using the two fans system of roller mill

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Application Number Priority Date Filing Date Title
CN201821265903.2U CN209174114U (en) 2018-08-07 2018-08-07 Using the two fans system of roller mill

Publications (1)

Publication Number Publication Date
CN209174114U true CN209174114U (en) 2019-07-30

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CN201821265903.2U Active CN209174114U (en) 2018-08-07 2018-08-07 Using the two fans system of roller mill

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111569994A (en) * 2020-05-25 2020-08-25 中国中材国际工程股份有限公司 Raw material roller press final grinding double-fan system and rolling method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111569994A (en) * 2020-05-25 2020-08-25 中国中材国际工程股份有限公司 Raw material roller press final grinding double-fan system and rolling method

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