CN201305553Y - A magnesium slag cement manufacturing device - Google Patents
A magnesium slag cement manufacturing device Download PDFInfo
- Publication number
- CN201305553Y CN201305553Y CNU2008201809723U CN200820180972U CN201305553Y CN 201305553 Y CN201305553 Y CN 201305553Y CN U2008201809723 U CNU2008201809723 U CN U2008201809723U CN 200820180972 U CN200820180972 U CN 200820180972U CN 201305553 Y CN201305553 Y CN 201305553Y
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- CN
- China
- Prior art keywords
- lime
- ash
- slag
- slag cement
- magnesium slag
- 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.)
- Expired - Lifetime
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Abstract
The utility model discloses a magnesium slag cement manufacturing device, which comprises a drier, an attrition mill, a suspension preheater, a calcinatory, a rotary kiln, a grinding mill, an slag collecting device, and a waste gas treatment device arranged on the output end of the slag collecting device; wherein the waste gas treatment device comprises a supply device and at least an slag container; the supply device is connected with the output end of the slag collecting device; the output end of the supply device is respectively connected with the slag containers; and the slag containers are placed in the position of the suspension preheater, or the calcinatory, or the rotary kiln where the temperature is higher than 730 DEG C. In the manufacturing device, the chloride in the slag is effectively discomposed into harmless substances in the slag container, thereby reducing environment pollution caused by slag discharge.
Description
Technical field
The utility model relates to a kind of cement making equipment, relates in particular to a kind of magnesium slag cement producing apparatus.
Background technology
Cement belongs to the auxiliary material category in fitting-out work, be indispensable engineering foundation material.
Cement also can be divided into multiple according to the difference of composition.For example, silicate cement, ordinary Portland cement, slag cement, trass cement and pulverized fuel ash cement or the like.
Wherein, the most commonly used with silicate cement.So-called silicate cement is to be the Portland clinker of main component with the Calucium Silicate powder, and adds that proper amount of gypsum is levigate to form.
In Portland clinker, add heterogeneity, can change the characteristic of cement, enlarge the scope of application of cement.For example: with Portland clinker and granulated blast-furnace slag, the hydraulic cementing materials that proper amount of gypsum is levigate to be made is Portland blast.This kind Portland blast has chemical-resisting performance height, hydration heat is low and advantage such as good economy performance.Again for example, be that the silicate magnesium slag cement that raw material is made has easily and the advantage that property is good, wear resistance is strong with the magnesium-smelting waste residues.Owing to can produce waste residue in the refining magnesium industry, if utilize magnesium-smelting waste residues to produce silicate magnesium slag cement, not only can reduce pollution, protection environment, also can significantly reduce the Cement Production cost.
In the prior art, magnesium slag cement producing apparatus comprises moisture eliminator, masher, suspended preheater, calcining furnace, rotary kiln, shredder and lime-ash collection device and discarded discharge line as shown in Figure 1.
Wherein, after the described cement slurry drying device drying that comprises magnesium-smelting waste residues, being delivered to masher via transport unit grinds, again via transport unit be sent to suspended preheater, calcining furnace successively, rotary kiln is calcined becomes grog, mix with gypsum at last, grinding through shredder becomes the magnesium slag cement.
Magnesium refining method mainly divides makes production of magnesium by pidgeonprocess (being hot reducing method) and electrolytic method magnesium smelting (chlorination fused salt electrolysis process).With the electrolytic method magnesium smelting is example, contains the muriate composition in the magnesium-smelting waste residues that is produced.Adopt this magnesium-smelting waste residues to mix with other cement slurries as cement slurry, and make cement clinker through calcining, can cause cement making equipment to discharge chlorine contained exhaust gas, this will cause bigger pollution to environment.Therefore, in the magnesium slag cement producing apparatus as shown in Figure 1, increase is provided with gas exhaust duct at the moisture eliminator place, and this gas exhaust duct connects lime-ash collection device.
The chlorine-containing gas that cement making equipment is discharged is when gas exhaust duct runs to moisture eliminator, gas temperature descends gradually, then the objectionable constituent in the chlorine-containing gas less are retained in the waste gas, but major part is adsorbed on lime-ash surface contained in the waste gas, these lime-ash that adsorbed chlorine contained exhaust gas are collected through the lime-ash collection device, and remaining waste gas then discharges through discharge line.
Lime-ash collection device in the existing magnesium slag cement producing apparatus no doubt can be compiled the lime-ash that has adsorbed chlorine contained exhaust gas, yet can't eliminate the chloride objectionable constituent in these lime-ash eventually, has environmental pollution hidden danger all the time.
The utility model content
The purpose of this utility model is to provide a kind of magnesium slag cement producing apparatus, by increase emission-control equipment in this equipment, can effectively handle chloride lime-ash again, thereby eliminate environmental pollution hidden danger.
Magnesium slag cement producing apparatus described in the utility model comprises moisture eliminator, masher, suspended preheater, calcining furnace, rotary kiln, shredder and lime-ash collection device, also comprises the emission-control equipment that is arranged at lime-ash collection device output terminal,
This emission-control equipment comprises feeding mechanism and at least one lime-ash container, described feeding mechanism is connected in the output terminal of lime-ash collection device, the output terminal of this feeding mechanism connects described lime-ash container respectively, and described lime-ash container places suspended preheater or calcining furnace or rotary kiln temperature greater than 730 degrees centigrade position.
In the magnesium slag cement producing apparatus described in the utility model, described emission-control equipment comprises three lime-ash containers, and three lime-ash containers place suspended preheater, calcining furnace, rotary kiln temperature greater than 730 degrees centigrade position respectively.Described lime-ash container is an open container.
In the magnesium slag cement producing apparatus described in the utility model, described feeding mechanism is a travelling belt.
In the magnesium slag cement producing apparatus described in the utility model, described lime-ash collection device is a particle collector.
In the magnesium slag cement producing apparatus described in the utility model, increasing the emission-control equipment that is provided with is transported to chloride lime-ash in the lime-ash container, and described lime-ash container places suspended preheater or calcining furnace or rotation kiln temperature greater than 730 degrees centigrade position, under this temperature condition, chloride lime-ash is by pyrolysis, harmful muriate in the lime-ash effectively is decomposed into innoxious substance, therefore, can eliminate the hidden danger that the lime-ash of discharging pollutes environment.
Description of drawings
Fig. 1 is the structural representation of magnesium slag cement producing apparatus in the prior art;
Fig. 2 is the structural representation of magnesium slag cement producing apparatus described in the utility model.
Embodiment
Those skilled in the art below in conjunction with accompanying drawing magnesium slag cement producing apparatus described in the utility model elaborated, so that can implement after consulting this specification sheets according to this.
As shown in Figure 2, in the magnesium slag cement producing apparatus described in the utility model, comprise the moisture eliminator of cement slurries such as the magnesium-smelting waste residues that is used for dry lime, clay, chloride and silica; The output terminal of this moisture eliminator connects masher by transport unit, and the cement slurry that described masher is used to grind after above-mentioned cement slurry also will grind mixes; The output terminal of described shredder connects suspended preheater by transport unit, and this suspended preheater is used for the mixture of preheating magnesium slag cement raw material; The output terminal of described suspended preheater connects calcining furnace by transport unit, and this calcining furnace is used to calcine the cement slurry mixture after the preheating, and its temperature remains between 800 to 1000 degrees centigrade usually; The output terminal of described calcining furnace connects rotary kiln by transport unit, and this rotary kiln is a cement clinker with the temperature cement baking raw material between 1200 to 1800 degrees centigrade; Described cement clinker is transported to shredder through transport unit after rotary kiln is fired, grind in the shredder with mixed being incorporated in such as gypsum, forms cement.
When cement slurry is fired in rotary kiln and calcining furnace, can produce the waste gas of chloride, these waste gas can pass through rotary kiln, calcining furnace and flow in the suspended preheater, and towards the last side shifting of suspended preheater, finally reach the external gas exhaust duct of suspended preheater.Afterwards, waste gas flows into the lime-ash collection device by masher and moisture eliminator successively through gas exhaust duct.Because waste gas is decreasing through the above-mentioned back temperature of advancing, in general, temperature when waste gas flows into masher is 300 to 350 degrees centigrade, temperature is then reduced to below 200 degree when flowing out in the self-desiccation device, like this, a large amount of chlorine-containing compounds can be attached on the lime-ash in the waste gas, and described lime-ash is collected by the lime-ash collection device, and all the other waste gas then discharge by discharge line.Here, described lime-ash collection device can be particle collector.
In the utility model, chlorine-containing compound need be further processed this lime-ash the harm of environment in the lime-ash in order to reduce, so, be provided with emission-control equipment at the output terminal of lime-ash collection device.
Described emission-control equipment comprises feeding mechanism and at least one lime-ash container, and this feeding mechanism is connected in the output terminal of lime-ash collection device, and the output terminal of described feeding mechanism then connects the input terminus of above-mentioned lime-ash container.Like this, the lime-ash that the lime-ash collection device is collected is sent into the lime-ash container respectively through feeding mechanism, and described lime-ash container need place the environment more than 730 degrees centigrade, specifically, the temperature that the lime-ash container can be placed suspended preheater or calcining furnace or rotary kiln is greater than 730 degrees centigrade position.
In the present embodiment, described emission-control equipment has comprised three lime-ash containers, and these three lime-ash containers connect the output terminal of feeding mechanism respectively, and, place suspended preheater, calcining furnace, rotary kiln temperature greater than 730 degrees centigrade position respectively.
In the utility model, described lime-ash container can be open container; Described feeding mechanism can be travelling belt.
Since lime-ash taken back in suspended preheater or calcining furnace or the rotary kiln greater than 730 degrees centigrade position, therefore, harmful muriate in the lime-ash can be broken down into innoxious substance, like this, is harmful to the harm that muriate causes environment because it comprises when just having eliminated the discharging lime-ash.
Although embodiment of the present utility model is open as above, but it is not restricted to listed utilization in specification sheets and the embodiment, it can be applied to the various fields of the present utility model that are fit to fully, for those skilled in the art, can easily realize other modification, therefore under the universal that does not deviate from claim and equivalency range and limited, the legend that the utility model is not limited to specific details and illustrates here and describe.
Claims (5)
1. a magnesium slag cement producing apparatus comprises moisture eliminator, masher, suspended preheater, calcining furnace, rotary kiln, shredder and lime-ash collection device, it is characterized in that, also comprises the emission-control equipment that is arranged at lime-ash collection device output terminal,
This emission-control equipment comprises feeding mechanism and at least one lime-ash container, described feeding mechanism is connected in the output terminal of lime-ash collection device, the output terminal of this feeding mechanism connects described lime-ash container respectively, and described lime-ash container places suspended preheater or calcining furnace or rotary kiln temperature greater than 730 degrees centigrade position.
2. magnesium slag cement producing apparatus as claimed in claim 1, it is characterized in that, described emission-control equipment comprises three lime-ash containers, and three lime-ash containers place suspended preheater, calcining furnace, rotary kiln temperature greater than 730 degrees centigrade position respectively.
3. magnesium slag cement producing apparatus as claimed in claim 2 is characterized in that described lime-ash container is an open container.
4. magnesium slag cement producing apparatus as claimed in claim 2 is characterized in that described feeding mechanism is a travelling belt.
5. magnesium slag cement producing apparatus as claimed in claim 2 is characterized in that described lime-ash collection device is a particle collector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201809723U CN201305553Y (en) | 2008-12-11 | 2008-12-11 | A magnesium slag cement manufacturing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201809723U CN201305553Y (en) | 2008-12-11 | 2008-12-11 | A magnesium slag cement manufacturing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201305553Y true CN201305553Y (en) | 2009-09-09 |
Family
ID=41098018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201809723U Expired - Lifetime CN201305553Y (en) | 2008-12-11 | 2008-12-11 | A magnesium slag cement manufacturing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201305553Y (en) |
-
2008
- 2008-12-11 CN CNU2008201809723U patent/CN201305553Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Free format text: FORMER OWNER: YANG FUQING ZHANG FU |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20111018 Address after: 037500 Shanxi province Datong Guangling County Horse Village Patentee after: Tong Zhongsheng Address before: 037500 Shanxi province Datong Guangling County Horse Village Co-patentee before: Yang Fuqing Patentee before: Tong Zhongsheng Co-patentee before: Zhang Fu |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180424 Address after: 037500 Datong County, Shanxi Province Patentee after: Shanxi Guangling Jinghua Chemical Industrial Group Co., Ltd. Address before: 037500 Shanxi province Datong Guangling County Horse Village Patentee before: Tong Zhongsheng |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090909 |