CN103521333B - A kind of to pulverize and two-stage sorting process and pulverizing and two-stage separation system - Google Patents

A kind of to pulverize and two-stage sorting process and pulverizing and two-stage separation system Download PDF

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Publication number
CN103521333B
CN103521333B CN201310456684.1A CN201310456684A CN103521333B CN 103521333 B CN103521333 B CN 103521333B CN 201310456684 A CN201310456684 A CN 201310456684A CN 103521333 B CN103521333 B CN 103521333B
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particulate
pulverizing
powder
dust
fine powder
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CN201310456684.1A
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Chinese (zh)
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CN103521333A (en
Inventor
郝志刚
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长沙深湘通用机器有限公司
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Abstract

The invention discloses a kind of pulverizing and two-stage sorting process, comprise step: the material after 1) pulverizing feeds waterfall streaming powder concentrator, sub-elects the mixture of particulate and fine powder; 2) particulate and fine powder are sent into dust-precipitator with the gas of waterfall streaming powder concentrator, gas is separated with fine powder with particulate; 3) mixture of particulate and fine powder is sent into fine powder powder concentrator, sub-elect particulate and fine powder.The present invention is pulverizing and is adopting waterfall streaming powder concentrator and fine powder powder concentrator for the technological process be separated of particulate and fine fraction in two-stage sorting process, change that power consumption in existing explained hereafter is large, steel consumption greatly, yield poorly and problem that fault is high again.The invention also discloses a kind of pulverizing and two-stage separation system.

Description

A kind of to pulverize and two-stage sorting process and pulverizing and two-stage separation system

Technical field

The present invention relates to pulverizing and sorting process technical field, more particularly, relate to a kind of pulverizing and two-stage sorting process and pulverize and two-stage separation system.

Background technology

In prior art is produced, when needing two kinds of products in disintegrating process, as particulate and fine powder; Sometimes also need the grain size intervals that stricter, especially to fine particle product, such as, require the product producing 1mm ~ 0.1mm grain size intervals, and require that the powder being less than 0.1mm is few.In existing industrial production, generally can adopt the technique of twice screening, i.e. fine sizing and fine powder sieving, the shortcoming of this technique is that the screening efficiency of particulate is very low, and the screening efficiency of fine powder is lower.Said particulate refers generally to less than several millimeters herein, such as, be less than 2 millimeters, or is less than 1 millimeter etc., and fine powder generally refers to and is less than 0.1 millimeter, 0.046 millimeter etc.

In addition alternative plan is that graded shot adopts screening machine in the prior art, and sorting fine powder adopts powder concentrator, although this kind of technique can solve the problem of fine powder sorting, the screening mode of particulate still makes the production efficiency of whole technique very low.

Screening machine and powder concentrator graded shot and fine powder is adopted to have following shortcoming: the screening efficiency 1, for particulate and fine powder is low, and a large amount of conforming particle can not be separated; 2, output is very low; 3, the consumption of energy consumption and consumable accessory is large.

Therefore, how to improve the efficiency of pulverizing and separation system, reduce energy consumption and fault rate, become the technical problem that those skilled in the art are urgently to be resolved hurrily.

Summary of the invention

In view of this, the object of the present invention is to provide a kind of pulverizing and two-stage sorting process, to improve the efficiency of separation, reduce energy consumption and fault rate;

Another object of the present invention is to provide a kind of pulverize and two-stage separation system.

For achieving the above object, the invention provides following technical scheme:

A kind of pulverizing and two-stage sorting process, comprise step:

1) material after pulverizer is pulverized feeds waterfall streaming powder concentrator, sub-elects the mixture of particulate and fine powder;

2) particulate and fine powder are sent into dust-precipitator with the gas of waterfall streaming powder concentrator, gas is separated with fine powder with particulate;

3) mixture of particulate and fine powder is sent into fine powder powder concentrator, sub-elect particulate and fine powder.

Preferably, in above-mentioned pulverizing and two-stage sorting process, described step 1) specifically comprises:

11) material after pulverizer is pulverized feeds waterfall streaming powder concentrator, sub-elects the mixture of particulate and fine powder and middle particulate;

12) pulverize being returned in pulverizer by the coarse grain after the sorting of waterfall streaming powder concentrator again.

Preferably, in above-mentioned pulverizing and two-stage sorting process, described pulverizer is vertical grinder, column mill or fine crusher to roller, roll squeezer, impact breaker, hammer mill, ball mill, rod mill, Raymond machine, bottom discharge.

Preferably, in above-mentioned pulverizing and two-stage sorting process, described dust-precipitator is cyclone separator or bag type dust collector.

Preferably, in above-mentioned pulverizing and two-stage sorting process, described dust-precipitator is the secondary dust collecting be made up of cyclone separator and bag type dust collector.

A kind of pulverizing and two-stage separation system, comprising:

Pulverizer;

Waterfall streaming powder concentrator, the feeding mouth of described waterfall streaming powder concentrator is communicated with the discharging opening of described pulverizer;

Dust-precipitator, the feeding mouth of described dust-precipitator and the particulate outlet of described waterfall streaming powder concentrator;

Fine powder powder concentrator, the feeding mouth of described fine powder powder concentrator is communicated with the discharging opening of described dust-precipitator.

Preferably, in above-mentioned pulverizing and two-stage separation system, the coarse fodder outlet of described waterfall streaming powder concentrator is communicated with the feeding mouth of described pulverizer.

Preferably, in above-mentioned pulverizing and two-stage separation system, described pulverizer is vertical grinder to roller, roll squeezer, impact breaker, hammer mill, ball mill, rod mill, Raymond machine, bottom discharge or fine crusher.

Preferably, in above-mentioned pulverizing and two-stage separation system, described dust-precipitator is cyclone separator or bag type dust collector.

Preferably, in above-mentioned pulverizing and two-stage separation system, described dust-precipitator is the secondary dust collecting be made up of cyclone separator and bag type dust collector.

A kind of pulverizing and two-stage separation system, comprising:

Column mill;

Waterfall streaming powder concentrator, the feeding mouth of described waterfall streaming powder concentrator is communicated with the discharging opening of described column mill, and the coarse fodder outlet of described waterfall streaming powder concentrator is communicated with the feeding mouth of described column mill;

Dust-precipitator, the feeding mouth of described dust-precipitator and the particulate outlet of described waterfall streaming powder concentrator.

Preferably, in above-mentioned pulverizing and two-stage separation system, particulate outlet during described waterfall streaming powder concentrator also has.

As can be seen from above-mentioned technical scheme, pulverizing provided by the invention and two-stage sorting process have following technique effect:

1, adopt waterfall streaming powder concentrator as a sorting, make the efficiency of separation higher, therefore output significantly increases;

2, because output is larger, therefore make the economize on electricity of pulverizing and two-stage separation system, save the amplitude of steel more greatly, therefore producing cost is very low;

3, the wearing and tearing of waterfall streaming powder concentrator are very little, and pulverizing and secondary select the wearing and tearing of the equipment of powder and fault also lower, and therefore the reliability of whole process system is high;

4, adopt negative pressure and airtight and whole being communicated with to be rely on pipeline owing to pulverizing with two-stage separation system, and rely on dust-precipitator collecting product, therefore whole pulverizing and two-stage separation system no dust pollution, want environment-friendly dustless than former sieving technology;

5, because firsts and seconds selects the unit disposal ability of powder equipment large, need not join for there being the process system of large output demand and overlap screening plant more, therefore process system is simpler.

Accompanying drawing explanation

In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.

The structural representation of the pulverizing that Fig. 1 provides for the embodiment of the present invention and two-stage separation system;

The appearance schematic diagram of the waterfall streaming powder concentrator that Fig. 2 provides for the embodiment of the present invention.

Detailed description of the invention

Core of the present invention is that providing a kind of pulverizes and two-stage sorting process, to improve the efficiency of separation, reduces energy consumption and fault rate;

Another core of the present invention is that providing a kind of pulverizes and two-stage separation system.

Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.

The pulverizing that the embodiment of the present invention provides and two-stage sorting process, comprise the steps:

1, the material after pulverizing is fed waterfall streaming powder concentrator by pulverizer, sub-elects the mixture of particulate and fine powder;

Material after pulverizing is fed the feeding mouth of waterfall streaming powder concentrator, feeding mouth is on the top of waterfall streaming powder concentrator.Gas is entered by the gas feed after blower fan pressurization at a high speed on the right of waterfall streaming powder concentrator, by high-speed gas and the effect creating thickness after the contact of the material fed and be separated, particulate and fine powder and gas are discharged from the upper left particulate outlet of waterfall streaming powder concentrator.The particulate outlet from waterfall streaming powder concentrator lower left of middle particulate is discharged and can become finished product together with particulate, also can become independent middle fine particle product.

2, particulate and fine powder are sent into dust-precipitator with the gas of waterfall streaming powder concentrator, gas is separated with fine powder with particulate.

3, the mixture of particulate and fine powder is sent into fine powder powder concentrator, sub-elect particulate and fine powder.

The size of particulate and fine powder can obtain the product of size fractionated, the fine particle product of such as-2mm ~+0.037mm, the fine powder product of 0 ~ 0.037mm by control waterfall streaming powder concentrator and fine powder powder concentrator.

The present invention adopts waterfall streaming powder concentrator and fine powder powder concentrator for the technological process be separated of particulate and fine fraction in the separating technology of two kinds of grades or two or more grade, changes that power consumption in existing explained hereafter is large, steel consumption is large, yields poorly and problem that fault is high again.

In the present invention one specific embodiment, step 1 specifically comprises the steps:

11, the material after pulverizer pulverizing feeds waterfall streaming powder concentrator, sub-elects the mixture of particulate and fine powder and middle particulate;

12, pulverizing being returned in pulverizer by the coarse grain after the sorting of waterfall streaming powder concentrator again, namely selecting the coarse grain after powder to discharge from the coarse fodder outlet of waterfall streaming powder concentrator bottom and return pulverizer and pulverizing again.The middle particulate that middle particulate outlet is discharged both can be mixed into finished product with particulate, also can separately as a kind of product of slightly coarse grain.

In the present invention one specific embodiment, pulverizer is vertical grinder, column mill or fine crusher to roller, roll squeezer, impact breaker, hammer mill, ball mill, rod mill, Raymond machine, bottom discharge.Preferential employing column mill.The principle of column mill and structure are a kind of grinding machines of vertical working, its main shaft rotated is equipped with a support, the periphery of support is provided with several grinding roller, grinding roller works under the situation of rotation and revolution, there is between grinding roller and corresponding mill adjustable gap, grinding roller and mill are in tilted layout, this grinding machine top feed, bottom discharge.

In the present invention one specific embodiment, dust-precipitator is single dust-precipitator, such as, can be cyclone separator or bag type dust collector.Dust-precipitator also can gather dust for the two-stage be made up of cyclone separator and bag type dust collector, and wherein one-level is gathered dust as rotoclone collector, and secondary gathers dust as bagroom.

Refer to Fig. 1 and Fig. 2, the structural representation of the pulverizing that Fig. 1 provides for the embodiment of the present invention and two-stage separation system; The appearance schematic diagram of the waterfall streaming powder concentrator that Fig. 2 provides for the embodiment of the present invention.

The pulverizing that the embodiment of the present invention provides and two-stage separation system, comprise pulverizer 1, waterfall streaming powder concentrator 2, dust-precipitator 3 and fine powder powder concentrator 4.

Wherein, the feeding mouth 22 of waterfall streaming powder concentrator 2 is communicated with the discharging opening of pulverizer 1, and the feeding mouth of dust-precipitator 3 exports 21 with the particulate of waterfall streaming powder concentrator 2 and is communicated with, and the feeding mouth of fine powder powder concentrator 4 is communicated with the discharging opening of dust-precipitator 3.

Material to be broken is put into pulverizer 1 and is pulverized, and the material after pulverizing enters waterfall streaming powder concentrator.Gas is entered by the gas feed after blower fan pressurization at a high speed on the right of waterfall streaming powder concentrator, by high-speed gas and the effect creating thickness after the contact of the material fed and be separated, particulate and fine powder and gas are discharged from the upper left particulate outlet of waterfall streaming powder concentrator.

The pulverizing that the embodiment of the present invention provides and two-stage separation system adopt waterfall streaming powder concentrator as a sorting, make the efficiency of separation higher, therefore output significantly increases, because output is larger, therefore make the economize on electricity of pulverizing and two-stage separation system, save the amplitude of steel more greatly, therefore producing cost is very low.The wearing and tearing of waterfall streaming powder concentrator are very little, and pulverizing and secondary select the wearing and tearing of the equipment of powder and fault also lower, and therefore the reliability of whole process system is high.Because pulverizing and the work of two-stage separation system negative pressure and airtight and whole being communicated with rely on pipeline, and rely on dust-precipitator collecting product, therefore whole pulverizing and two-stage separation system no dust pollution, want environment-friendly dustless than former sieving technology.Because firsts and seconds selects the unit disposal ability of powder equipment large, need not join for there being the process system of large output demand and overlap screening plant more, therefore process system is simpler.

In the present invention one specific embodiment, the coarse fodder outlet 24 of waterfall streaming powder concentrator 2 is communicated with the feeding mouth of pulverizer 1.Coarse grain after by the sorting of waterfall streaming powder concentrator is returned in pulverizer pulverize again, namely select the coarse grain after powder to discharge from the coarse fodder outlet of waterfall streaming powder concentrator bottom and return pulverizer and pulverize again.In middle particulate outlet 25 discharge, particulate can be mixed into finished product with particulate, also can become separately a kind of slightly thick product, and middle particulate outlet 25 can also be closed.

In the present invention one specific embodiment, pulverizer is to roller, roll squeezer, impact breaker, hammer mill, ball mill, rod mill, Raymond machine, the vertical grinder of bottom discharge or fine crusher.

In the present invention one specific embodiment, dust-precipitator is single dust-precipitator, such as, can be cyclone separator or bag type dust collector.Dust-precipitator also can gather dust for the two-stage be made up of cyclone separator and bag type dust collector, and wherein one-level is gathered dust as rotoclone collector, and secondary gathers dust as bagroom.

The pulverizer 1 of the disclosed pulverizing of above-described embodiment and two-stage separation system also can be replaced by column mill, and the feeding mouth 22 of waterfall streaming powder concentrator 2 is communicated with the discharging opening of column mill, and the coarse fodder outlet 24 of waterfall streaming powder concentrator 2 is communicated with the feeding mouth of described column mill.

The principle of column mill and structure are a kind of grinding machines of vertical working, its main shaft rotated is equipped with a support, the periphery of support is provided with several grinding roller, grinding roller works under the situation of rotation and revolution, there is between grinding roller and corresponding mill adjustable gap, grinding roller and mill are in tilted layout, this grinding machine top feed, bottom discharge.

In this description, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.

To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.

Claims (10)

1. pulverize and a two-stage sorting process, it is characterized in that, comprise step:
1) material after pulverizer is pulverized feeds waterfall streaming powder concentrator, sub-elects the mixture of particulate and fine powder;
2) particulate and fine powder are sent into dust-precipitator with the gas of waterfall streaming powder concentrator, gas is separated with fine powder with particulate;
3) mixture of particulate and fine powder is sent into fine powder powder concentrator, sub-elect particulate and fine powder.
2. pulverizing as claimed in claim 1 and two-stage sorting process, is characterized in that, described step 1) specifically comprise:
11) material after pulverizer is pulverized feeds waterfall streaming powder concentrator, sub-elects the mixture of particulate and fine powder and middle particulate;
12) pulverize being returned in pulverizer by the coarse grain after the sorting of waterfall streaming powder concentrator again.
3. pulverizing as claimed in claim 2 and two-stage sorting process, it is characterized in that, described pulverizer is vertical grinder, column mill or fine crusher to roller, roll squeezer, impact breaker, hammer mill, ball mill, rod mill, Raymond machine, bottom discharge.
4. pulverizing as claimed in claim 1 and two-stage sorting process, it is characterized in that, described dust-precipitator is cyclone separator or bag type dust collector.
5. pulverizing as claimed in claim 1 and two-stage sorting process, it is characterized in that, described dust-precipitator is the secondary dust collecting be made up of cyclone separator and bag type dust collector.
6. pulverize and a two-stage separation system, it is characterized in that, comprising:
Pulverizer (1);
Waterfall streaming powder concentrator (2), the feeding mouth (22) of described waterfall streaming powder concentrator (2) is communicated with the discharging opening of described pulverizer (1);
Dust-precipitator (3), the feeding mouth of described dust-precipitator (3) exports (21) with the particulate of described waterfall streaming powder concentrator (2) and is communicated with;
Fine powder powder concentrator (4), the feeding mouth of described fine powder powder concentrator (4) is communicated with the discharging opening of described dust-precipitator (3).
7. pulverizing as claimed in claim 6 and two-stage separation system, is characterized in that, coarse fodder outlet (24) of described waterfall streaming powder concentrator (2) is communicated with the feeding mouth of described pulverizer (1).
8. as claimed in claim 6 to pulverize and two-stage separation system, it is characterized in that, described pulverizer is vertical grinder to roller, roll squeezer, impact breaker, hammer mill, ball mill, rod mill, Raymond machine, bottom discharge or fine crusher.
9. pulverizing as claimed in claim 6 and two-stage separation system, it is characterized in that, described dust-precipitator is cyclone separator or bag type dust collector.
10. pulverizing as claimed in claim 6 and two-stage separation system, it is characterized in that, described dust-precipitator is the secondary dust collecting be made up of cyclone separator and bag type dust collector.
CN201310456684.1A 2013-09-29 2013-09-29 A kind of to pulverize and two-stage sorting process and pulverizing and two-stage separation system CN103521333B (en)

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CN104384007B (en) * 2014-11-12 2017-01-25 中冶焦耐工程技术有限公司 Process and device for preparing lime powder for KR desulfurizing agent
RU2598909C2 (en) * 2014-11-25 2016-10-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования Донской государственный аграрный университет Method and device for grinding grain
CN105057071B (en) * 2015-08-28 2019-11-08 长沙深湘通用机器有限公司 Coarse grain crushes and sorting process
CN105107597A (en) * 2015-08-28 2015-12-02 长沙深湘通用机器有限公司 Coarse grain sorting method based on gas sorting machine and column mill
CN105032583A (en) * 2015-08-28 2015-11-11 长沙深湘通用机器有限公司 Coarse grain sorting method based on gas sorting machines and crusher
CN109092520A (en) * 2018-08-03 2018-12-28 盐城市鼎力新材料有限公司 A kind of levigate treatment process of coal ash sorting

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