CN1142471A - New Cooling Technology of White Cement Clinker - Google Patents
New Cooling Technology of White Cement Clinker Download PDFInfo
- Publication number
- CN1142471A CN1142471A CN 96105635 CN96105635A CN1142471A CN 1142471 A CN1142471 A CN 1142471A CN 96105635 CN96105635 CN 96105635 CN 96105635 A CN96105635 A CN 96105635A CN 1142471 A CN1142471 A CN 1142471A
- Authority
- CN
- China
- Prior art keywords
- cooling
- cement clinker
- white cement
- clinker
- bleaching
- 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.)
- Pending
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 45
- 239000004568 cement Substances 0.000 title claims abstract description 17
- 238000005516 engineering process Methods 0.000 title description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000004061 bleaching Methods 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 17
- 238000005507 spraying Methods 0.000 claims abstract description 7
- 239000007921 spray Substances 0.000 claims description 8
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 238000003860 storage Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000004927 clay Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Description
本发明涉及一种水泥的生产工艺及其采用的设备，具体是白水泥熟料的冷却工艺。The invention relates to a cement production process and equipment used therefor, in particular to a cooling process for white cement clinker.
白色和彩色水泥主要用于建筑装饰工程，可配成彩色灰浆或制造各种彩色和白色混凝土，如水磨石、花砖等。White and colored cement are mainly used in architectural decoration projects, and can be made into colored mortar or made into various colored and white concrete, such as terrazzo, tiles, etc.
为了提高水泥的白度，在生产过程中，须将熟料从1250～1300℃急速冷却，一般采用立即喷水冷却和漂白处理，从而降低Fe2O2的含量，达到提高白度的目的。已知白水泥的熟料冷却工艺是将煅烧的熟料经一次喷水冷却漂白输出后，用堆放法使其熟料逐渐达到室温后再送入储库储备使用。这种一次喷水漂白冷却工艺存在以下缺点：(1)堆放或冷却生产不具连续性，熟料污染环境及环境中的粉尘污染熟料；(2)一次喷水漂白冷却机输出的熟料温度高达120℃以上，这样温度的熟料如果直接进入储料元库，热量无法散发，会影响熟料强度，且入磨熟料温度高，磨机产量就会降低，增加成本；(3)采用堆放式冷却，工人劳动强度大；(4)一次喷水冷却漂白喷水不均匀，冷却漂白后的熟料含水量有差别。In order to improve the whiteness of cement, during the production process, the clinker must be cooled rapidly from 1250 to 1300 °C, generally using immediate water spray cooling and bleaching treatment, so as to reduce the content of Fe 2 O 2 and achieve the purpose of improving whiteness. The clinker cooling process of known white cement is that after the calcined clinker is cooled and bleached by spraying water once, the clinker is gradually brought to room temperature by stacking method and then sent to the storage for storage for use. This one-time water spray bleaching and cooling process has the following disadvantages: (1) stacking or cooling production is not continuous, clinker pollutes the environment and dust in the environment pollutes the clinker; (2) the temperature of the clinker output by the one-time water spray bleaching cooling machine As high as 120°C, if the clinker at such a temperature directly enters the storage unit, the heat cannot be dissipated, which will affect the clinker strength, and the high temperature of the clinker entering the mill will reduce the output of the mill and increase the cost; (3) adopt Stacked cooling, the labor intensity of workers is high; (4) water spraying is not uniform for cooling and bleaching once, and the water content of the clinker after cooling and bleaching is different.
本发明的目的在于提供一种新的熟料冷却工艺，这种冷却工艺能够减少污染，提高产品质量，降低工人劳动强度。The object of the present invention is to provide a new clinker cooling process, which can reduce pollution, improve product quality and reduce labor intensity of workers.
实现本发明目的之方案，是将经煅烧的白水泥熟料按常规一次喷水冷却漂白处理后，即进行二次连续冷却，其工艺流程如下：白水泥熟料→淋水冷却漂白→振动输送→二次冷却→提升→熟料库。其中一次冷却降温至100～130℃，二次冷却时间5～15分钟，熟料降温至20～40℃或室温。The solution to realize the object of the present invention is to carry out the second continuous cooling after the calcined white cement clinker is cooled and bleached by spraying water once in a conventional manner, and the process flow is as follows: white cement clinker → water cooling and bleaching → vibration transportation →secondary cooling→lifting→clinker storage. Among them, the first cooling is lowered to 100-130°C, the second cooling time is 5-15 minutes, and the temperature of the clinker is lowered to 20-40°C or room temperature.
与本发明工艺相适应的设备，是在常规的一次水泥熟料喷水漂白冷却工艺所采用的喷水冷却漂白机与储料元库之间增加一台普通冷却机，使之构成如下一套设备系统：喷水冷却漂白机→振送机→皮带机→二次冷却机→提升机→熟料库。The equipment compatible with the process of the present invention is to add an ordinary cooling machine between the water spray cooling bleaching machine and the material storage unit used in the conventional primary cement clinker water spray bleaching cooling process, so that it constitutes the following set Equipment system: water spray cooling bleaching machine → vibrating conveyor → belt conveyor → secondary cooling machine → hoist → clinker storage.
本发明所采用的二次冷却机是Φ1米～Φ2米，长10米～20米的圆筒或作圆周转动的冷却机。二次冷却机的容量大于第一次冷却机。The secondary cooling machine that the present invention adopts is Φ 1 meter～Φ 2 meters, the cylinder of long 10 meters～20 meters or the cooling machine that makes circular rotation. The capacity of the secondary cooler is larger than that of the primary cooler.
本发明采用上述二次连续冷却工艺后，所输出的熟料一般达到室温或接近室温，可直接进入元库。与现有工艺相比，二次连续冷却工艺由于熟料输送是连续、机械输送，减轻工人劳动强度，不造成对环境污染和环境对熟料的污染；熟料进入二次冷却机的容量比一次冷却机大，熟料在二次冷却机内通过机械转动达到散发热量，挥发水分，一定程度上起均化熟料的作用。After the present invention adopts the above-mentioned secondary continuous cooling process, the outputted clinker generally reaches room temperature or close to room temperature, and can directly enter the primary storage. Compared with the existing technology, the secondary continuous cooling process reduces the labor intensity of workers due to the continuous and mechanical transportation of the clinker, and does not cause environmental pollution and environmental pollution to the clinker; the capacity ratio of the clinker entering the secondary cooler The primary cooler is large, and the clinker can dissipate heat and volatilize moisture through mechanical rotation in the secondary cooler, which can homogenize the clinker to a certain extent.
以下结合实施例对本发明进一步描述。The present invention is further described below in conjunction with embodiment.
实施例：Example:
取石灰质原料、粘土质原料等生料经高温煅烧成熟料后，按常规方法将熟料输送至淋水冷却漂白机进行淋水冷却漂白处理，使其在800～900℃时受还原介质(不含氧气而含部分CO)的作用，将Fe2O2还原为颜色较浅的Fe3O4或FeO的矿物，然后在隔绝氧气的条件下冷却至110～120℃。此时将已冷却的物料经振送机和皮带机输送至二次冷却机，进行二次喷水冷却处理10分钟，使物料降温至室温后，经提升机提升即可入熟料库。After calcareous raw materials, clay raw materials and other raw materials are calcined at high temperature to clinker, the clinker is transported to the water cooling bleaching machine according to the conventional method for water cooling and bleaching treatment, so that it is exposed to the reducing medium at 800 ~ 900 °C (not Oxygen containing part of CO) will reduce Fe 2 O 2 to Fe 3 O 4 or FeO minerals with lighter color, and then cool to 110-120°C under the condition of cutting off oxygen. At this time, the cooled material is transported to the secondary cooler through the vibrating conveyor and the belt conveyor, and is subjected to secondary water spray cooling treatment for 10 minutes. After the material is cooled to room temperature, it can be lifted into the clinker storage by the hoist.
本实施例采用的二次冷却机规格是Φ1.5米、长15米，流量3.5T/小时的圆筒冷却机。在第一台淋水冷却漂白机的出料口与二次冷却机的进料口之间装有一台振送机和一台皮带机；在二次冷却机的出料口处装有一台提升机。The specification of the secondary cooler used in this embodiment is a cylindrical cooler with a diameter of 1.5 meters, a length of 15 meters, and a flow rate of 3.5 T/hour. A vibration conveyor and a belt conveyor are installed between the discharge port of the first cooling bleaching machine and the feed port of the secondary cooler; a lifting conveyor is installed at the discharge port of the secondary cooler. machine.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96105635 CN1142471A (en) | 1996-08-01 | 1996-08-01 | New Cooling Technology of White Cement Clinker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96105635 CN1142471A (en) | 1996-08-01 | 1996-08-01 | New Cooling Technology of White Cement Clinker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1142471A true CN1142471A (en) | 1997-02-12 |
Family
ID=5118934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96105635 Pending CN1142471A (en) | 1996-08-01 | 1996-08-01 | New Cooling Technology of White Cement Clinker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1142471A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011051962A3 (en) * | 2009-10-01 | 2011-07-07 | Ultratech Cement Limited | A process for manufacturing white cement |
| CN102390940A (en) * | 2011-08-24 | 2012-03-28 | 河南万兴特种水泥有限公司 | Preparation process of white cement |
| CN103459347A (en) * | 2011-03-18 | 2013-12-18 | 奥图泰有限公司 | Clinker substitute based on calcined clay |
| CN108017295A (en) * | 2018-01-31 | 2018-05-11 | 江西银杉白水泥有限公司 | A kind of efficient White cement bleaching machine |
| CN114211617A (en) * | 2021-12-10 | 2022-03-22 | 张朝峰 | Cement clinker production equipment |
-
1996
- 1996-08-01 CN CN 96105635 patent/CN1142471A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011051962A3 (en) * | 2009-10-01 | 2011-07-07 | Ultratech Cement Limited | A process for manufacturing white cement |
| CN103459347A (en) * | 2011-03-18 | 2013-12-18 | 奥图泰有限公司 | Clinker substitute based on calcined clay |
| CN103459347B (en) * | 2011-03-18 | 2015-08-19 | 奥图泰有限公司 | Based on the grog substituent of claying |
| CN102390940A (en) * | 2011-08-24 | 2012-03-28 | 河南万兴特种水泥有限公司 | Preparation process of white cement |
| CN108017295A (en) * | 2018-01-31 | 2018-05-11 | 江西银杉白水泥有限公司 | A kind of efficient White cement bleaching machine |
| CN108017295B (en) * | 2018-01-31 | 2023-08-01 | 江西银杉白水泥股份有限公司 | Efficient white cement clinker bleaching machine |
| CN114211617A (en) * | 2021-12-10 | 2022-03-22 | 张朝峰 | Cement clinker production equipment |
| CN114211617B (en) * | 2021-12-10 | 2023-12-22 | 含山南方水泥有限公司 | Cement clinker production facility |
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