CN1194931C - Production method of sludge baked brick - Google Patents

Production method of sludge baked brick Download PDF

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Publication number
CN1194931C
CN1194931C CN 02137142 CN02137142A CN1194931C CN 1194931 C CN1194931 C CN 1194931C CN 02137142 CN02137142 CN 02137142 CN 02137142 A CN02137142 A CN 02137142A CN 1194931 C CN1194931 C CN 1194931C
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sludge
brick
production method
method
shale
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CN 02137142
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Chinese (zh)
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CN1413939A (en
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应国庆
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应国庆
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Abstract

本发明涉及一种固体废物的处理,具体是一种利用污泥烧结砖生产方法。 The present invention relates to a solid waste treatment, in particular to a method of producing sludge using fired brick. 坯泥中污泥含量为安全量,一般为50~5%,常用为50~30%;页岩粉料为其余量,一般粒径≤0.5mm,常用≤0.3mm,常规制坯焙烧。 Blank mud sludge content safe amount, generally from 50 to 5%, often 50 to 30%; the balance for shale powder, the particle size ≤0.5mm general, common ≤ 0.3mm, conventional fired preform. 本发明不改变现行的制砖工艺,具有原料来源广泛,污泥直接添加,且消耗量高等特点,是一种比较经济实用的环保型制砖方法。 The present invention does not change the existing brick process, with a wide sources of raw materials, sludge added directly, and the consumption and high, is a more economical method of brick environmentally friendly.

Description

污泥烧结砖生产方法 Sludge Brick Production Method

技术领域 FIELD

本发明涉及一种固体废物的处理,具体是一种利用污泥烧结砖生产方法。 The present invention relates to a solid waste treatment, in particular to a method of producing sludge using fired brick.

背景技术 Background technique

中国专利文献CN1217239公开了一种“利用污泥热能烧制轻质砖的方法”,它以黏土为主要原料,与脱水并制成团粒的污泥拌和,制坯供烧砖。 Chinese patent CN1217239 discloses a "method for utilizing thermal energy firing sludge lightweight brick", it clay as the main raw material, mixing with the dehydrated sludge and made into pellets, for brick preform. 该方法有如下不足,一是制坯时污泥需要制成团粒,使工艺复杂,且污泥消耗量不高(不超过30%);二是主要原料仍然用黏土,而从耕地中挖取黏土已经受国家政策明令禁止,故原料来源受到限制。 This method has the following shortcomings, while sludge formed by pelletizing need one blank, making the process complicated, and the consumption amount of sludge is not high (less than 30%); the second is still the main raw material of clay, and from the cultivated land digging clay has been banned by the state policy, it is a source of raw materials is limited.

发明内容 SUMMARY

本发明需要解决的技术问题是,克服已有技术所存在的不足,提供一种主要原料来源广泛,污泥直接添加,且消耗量高的污泥烧结砖生产方法,可以制得多孔砖或标准砖。 The present invention requires the technical problem is to overcome the deficiencies of the prior art are present, the main sources of raw materials to provide a widely, added directly to the sludge, and high consumption of sludge production method of sintered brick, porous brick or can be prepared by standard brick.

本发明的坯泥中污泥含量为达到烧结强度的安全量,页岩粉料为其余量,常规制坯焙烧。 Blank mud sludge content of the present invention is to achieve green strength is the amount of security, its margin shale powder, conventional fired preform. 所述的污泥含量指绝干量。 The sludge content is the absolute dry amount. 污泥作为废物利用,其含量越多越好。 As the use of waste sludge, the content thereof is better. 但由于污泥中散布有微粒状可燃烧物,在焙烧时会留下海绵状微孔,影响烧结砖的强度等性能指标,所以将污泥含量定为安全量。 However, due to the sludge can be dispersed particulate combustion, will leave at the time of firing a sponge-like microporous, impact strength of the sintered brick and other performance indicators, so as to secure the amount of sludge content. 安全量的数值可以根据污泥的性质、焙烧砖的用途等通过试验确定,可以在50~5%之间,生产中通常添加量为50~30%。 Numerical safe amount can be determined by experiment to be between 50% to 5%, the production is usually added in an amount of 50 to 30% depending on the nature of the sludge, and the like use fired bricks. 所述的主要原料页岩来源广泛,成本低廉,页岩粉料的颗粒直径≤0.5mm,生产中通常控制在≤0.3mm。 The wide main source of raw materials shale, low cost, the particle diameter of the powder ≤0.5mm shale, the production of the normal control ≤0.3mm. 针对热值偏低的污泥,坯泥中可以掺有粒径与页岩粉料粒径一致的≤10%坯泥量的煤渣,作为焙烧中热值调节,这可以通过试验确定。 Low calorific value for the sludge, the sludge may be doped preform uniform particle size powder particle size ≤10% shale blank cinder, clay content, adjusted as heat baking, which can be determined by experiment.

本发明不改变现行的制砖工艺,具有原料来源广泛,污泥直接添加,且消耗量高等特点,是一种比较经济实用的环保型制砖方法。 The present invention does not change the existing brick process, with a wide sources of raw materials, sludge added directly, and the consumption and high, is a more economical method of brick environmentally friendly.

具体实施方式 Detailed ways

下面通过实施例,对本发明的技术方案作进一步具体的说明。 The following examples, the technical solution of the present invention will be further specifically described.

实施例1。 Example 1. 本发明的污泥烧结砖生产方法是:原料准备。 Sludge Brick Production method of the present invention is that: raw material preparation. 现场来的污泥水分含量一般在70~80%,采用多种手段使之降低到12%左右备用。 Field sludge to a moisture content of generally 70 to 80%, using various means to lower it to about 12% standby. 页岩用粉碎机粉碎过筛,得粒径≤0.3mm的页岩粉料。 Shale crushed with a grinder and sieved to give a particle size ≤0.3mm of shale powder.

配料拌和。 Mixing the ingredients. 按照污泥绝干量35%,和页岩粉料65%的比例配料,在搅拌机加少量水拌和,得坯泥。 Sludge in accordance with the absolute dry amount of 35%, and 65% of the shale powder proportioning, mixing in a mixer a little water to afford the blank mud.

制坯干燥。 Preform was dried. 用制砖机生产砖坯,烘干。 Brick production, drying with a brick.

入窑焙烧。 Into the kiln. 为了适应含有污泥砖的稳定升温—保温—再升温的烧结要求,在隧道窑内焙烧。 To accommodate stably heated sludge containing bricks - insulation - then heated in claim sintered, fired in a tunnel kiln. 生产时的焙烧条件一般是:室温-100℃升温速度为120℃/小时,100℃保温20分钟;100-400℃升温速度为150℃/小时,400℃保温30分钟;400-800℃升温速度为150℃/小时,800℃保温30分钟;800-1130℃升温速度为150℃/小时,1130℃保温3小时至成砖;降温速度为200℃/小时,至出窑。 When the firing conditions are typically produced: room temperature -100 ℃ heating rate of 120 ℃ / h, 100 ℃ 20 minutes incubation; 100-400 deg.] C temperature rise rate of 150 ℃ / h, 400 ℃ 30 minutes incubation; 400-800 deg.] C temperature rise rate of 150 ℃ / hour, 800 deg.] C for 30 minutes; 800-1130 ℃ temperature rise rate of 150 ℃ / h for 3 hours to 1130 ℃ into bricks; cooling rate 200 ℃ / hr to the kiln. 分段焙烧,保证了砖坯内外温度梯度均匀,不会出现突变导致成砖质地不匀、开裂等缺陷。 Firing segment, to ensure a uniform temperature gradient inside and outside the brick, brick does not appear to cause mutations uneven texture, cracking and other defects.

实施例2。 Example 2. 本例按照污泥绝干量45%,和页岩粉料55%的比例配料,其余同例1。 This embodiment of the proportioning of 55% of sludge according to the absolute dry amount of 45%, and shale powder, and the rest with Example 1.

使用本发明方法生产的污泥烧结砖中的240×115×90(mm)多孔砖,经过国家建筑材料工业墙体屋面材料质量监督检验测试中心检验,质量符合标准。 Sludge sintered brick production method of the invention in the 240 × 115 × 90 (mm) brick, through the National Building Materials Industry wall and roof materials Quality Supervision and Testing Center for testing, quality standards.

Claims (4)

1.一种污泥烧结砖生产方法,其特征在于在:坯泥中污泥含量为50~5%,页岩粉料为其余量,常规制坯焙烧。 A method of producing sintered brick sludge, characterized in that: the blank mud sludge content of 50 to 5%, balance its shale powder, conventional fired preform.
2.根据权利要求1所述的污泥烧结砖生产方法,其特征在于坯泥中污泥含量为50~30%。 2. Sludge production method of a sintered tile according to claim 1, characterized in that the blank mud sludge content of 50 to 30%.
3.根据权利要求1或2所述的污泥烧结砖生产方法,其特征在于页岩粉料的粒径≤0.5mm。 3. The method of producing sintered brick or sludge according to claim 12, characterized in that the powder particle size shale ≤0.5mm.
4.根据权利要求3所述的污泥烧结砖生产方法,其特征在于页岩粉料的粒径≤0.3mm。 4. Sludge production method of a sintered tile according to claim 3, characterized in that the powder particle size shale ≤0.3mm.
CN 02137142 2002-09-23 2002-09-23 Production method of sludge baked brick CN1194931C (en)

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CN1194931C true CN1194931C (en) 2005-03-30

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Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100478297C (en) 2006-05-16 2009-04-15 刘仁富 Method for producing bricks from urban domestic sludge
CN100462325C (en) 2006-07-13 2009-02-18 广州普得环保设备有限公司 Sludge sintering brick process
CN100457663C (en) 2007-03-29 2009-02-04 广州普得环保设备有限公司 Method for producing clinker bricks by making the most of sludge calorific value
CN102381850A (en) * 2010-09-01 2012-03-21 方运平 Non-coal burnt brick produced by sludge renewable resources
CN102491725A (en) * 2011-11-16 2012-06-13 宝丰县人和新型建材有限公司 Fired brick prepared from sludge
CN103242030A (en) * 2013-04-07 2013-08-14 浙江捷丰环保技术工程有限公司 Method for producing dried sludge and shale sintered insulation bricks
CN103819201A (en) * 2013-12-31 2014-05-28 广西科技大学 Special sintering production method for rectangular-hole light shale brick
CN104529396B (en) * 2015-01-16 2015-09-30 邹汉成 A method of use of sewage sludge brick
CN104609834B (en) * 2015-01-19 2016-08-24 广东科达洁能股份有限公司 Porcelain tile
CN105837170A (en) * 2016-03-21 2016-08-10 东南大学 Revetment sintered brick with lacustrine silt and shale as raw materials and preparing method thereof
CN107056238A (en) * 2017-04-10 2017-08-18 河南永泽环境科技有限公司 Method for preparing brick from sludge anaerobic digestion biogas residues

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