阅读说明：本技术 一种陶粒生产工艺 (Ceramsite production process ) 是由 程龙 戴子兵 张国安 于 2021-08-20 设计创作，主要内容包括：本发明公开了一种陶粒生产工艺,工艺流程为：污泥和粘土→齿棍式破碎机喂料→对辊除石机除石→对辊破碎机破碎→混合搅拌→陈化→箱式喂料机喂料→对辊破碎机→二次搅拌→造粒→焙烧→冷却→成品分级筛选→堆放。利用本发明工艺制作的陶粒作为建筑材料使用,污泥利用污水厂运来的污泥,实现污泥厂污泥再次利用,有效地减少了污泥造成的环境污染。回转窑的燃料为谷糠,成本低,更加环保。陶粒煅烧时窑尾烟气通过处理后排放,减少环境污染。(The invention discloses a ceramsite production process, which comprises the following process flows: sludge and clay → feeding of a toothed bar crusher → stone removal of a double-roller stone remover → crushing of a double-roller crusher → mixing and stirring → aging → feeding of a box type feeder → double-roller crusher → secondary stirring → granulation → roasting → cooling → grading and screening of finished products → stacking. The ceramsite prepared by the process is used as a building material, and the sludge is recycled by utilizing the sludge transported by a sewage plant, so that the environmental pollution caused by the sludge is effectively reduced. The fuel of the rotary kiln is bran coat, so that the cost is low and the rotary kiln is more environment-friendly. And the kiln tail flue gas is discharged after being treated during the calcination of the ceramsite, so that the environmental pollution is reduced.)

1. A ceramsite production process is characterized by comprising the following steps: comprises that

1) Aging section: pre-stirring and mixing clay and sludge according to a required proportion, feeding the stirred mixed material through a toothed rod crusher, and adding required additives according to requirements in the feeding process; the method comprises the following steps that materials are discharged from a toothed bar type crusher and then enter a double-roll stone removing machine for stone removal, then enter the double-roll crusher for crushing, the materials which enter the double-shaft stirrer for pre-stirring, and the stirred materials are conveyed to an aging storage yard through a belt conveyor for aging;

2) a feeding and granulating section: putting the aged material into a bin of a box type feeding machine through a loader, feeding the material through the box type feeding machine, crushing the material in a double-roll crusher, stirring the crushed material in a double-shaft stirrer, conveying the stirred material to a double-roll granulator for granulation, and conveying the prepared raw ceramsite to a rotary kiln for calcination;

3) a calcination section: the ceramsite firstly enters a drying chamber of a rotary kiln to be dried, and then slowly enters a calcining chamber of the rotary kiln along with the ceramsite in the rotary kiln, the temperature of the ceramsite is gradually heated, water is gradually evaporated, when the ceramsite enters the calcining chamber of the rotary kiln, the temperature of the ceramsite is rapidly heated to react, the ceramsite is calcined into ceramic particles, and internal pores are expanded; the calcined ceramsite flows out of the kiln head of the rotary kiln, is lifted to the upper part of the drum screen by the single-bucket elevator, is separated into different particle sizes after being screened by the drum screen, and is accumulated in a storage yard to wait for packing and export sales.

2. The ceramsite production process according to claim 1, wherein the ceramsite is prepared by the following steps: the fuel of the rotary kiln in the calcining working section is bran, the bran is lifted into a bran bin by a bucket elevator to be stored, a screw feeder is arranged at the bottom of the bran bin, the bran is conveyed to a combustor pipeline, and the bran is blown into the rotary kiln by the wind power of a combustion-supporting fan to be combusted.

3. The ceramsite production process according to claim 1, wherein the ceramsite is prepared by the following steps: kiln tail flue gas of the rotary kiln is subjected to dust sedimentation through a sedimentation chamber arranged at the kiln tail, then enters a water film deduster for dedusting, and finally is discharged into the air through a fan.

4. The ceramsite production process according to claim 1, wherein the ceramsite is prepared by the following steps: the sludge is sludge transported from a sewage plant.

5. The ceramsite production process according to claim 1, wherein the ceramsite is prepared by the following steps: the granularity of the clay is below 10mm, and the moisture is 8-12%; the granularity of the sludge is below 5mm, and the water content is 65-75%.

The technical field is as follows:

the invention relates to a ceramsite production process.

Background art:

the invention provides a ceramsite production process, which can be used as a building material, and is energy-saving and environment-friendly.

The invention content is as follows:

the invention provides a ceramsite production process for solving the problems in the prior art.

The technical scheme adopted by the invention is as follows:

a haydite production process comprises

1) Aging section: pre-stirring and mixing clay and sludge according to a required proportion, feeding the stirred mixed material through a toothed rod crusher, and adding required additives according to requirements in the feeding process; the method comprises the following steps that materials are discharged from a toothed bar type crusher and then enter a double-roll stone removing machine for stone removal, then enter the double-roll crusher for crushing, the materials which enter the double-shaft stirrer for pre-stirring, and the stirred materials are conveyed to an aging storage yard through a belt conveyor for aging;

2) a feeding and granulating section: putting the aged material into a bin of a box type feeding machine through a loader, feeding the material through the box type feeding machine, crushing the material in a double-roll crusher, stirring the crushed material in a double-shaft stirrer, conveying the stirred material to a double-roll granulator for granulation, and conveying the prepared raw ceramsite to a rotary kiln for calcination;

3) a calcination section: the ceramsite firstly enters a drying chamber of a rotary kiln to be dried, and then slowly enters a calcining chamber of the rotary kiln along with the ceramsite in the rotary kiln, the temperature of the ceramsite is gradually heated, water is gradually evaporated, when the ceramsite enters the calcining chamber of the rotary kiln, the temperature of the ceramsite is rapidly heated to react, the ceramsite is calcined into ceramic particles, and internal pores are expanded; the calcined ceramsite flows out of the kiln head of the rotary kiln, is lifted to the upper part of the drum screen by the single-bucket elevator, is separated into different particle sizes after being screened by the drum screen, and is accumulated in a storage yard to wait for packing and export sales.

Furthermore, the fuel of the rotary kiln in the calcining working section is bran, the bran is lifted into a bran bin by a bucket elevator to be stored, a spiral feeder is arranged at the bottom of the bran bin, the bran is conveyed to a combustor pipeline, and the bran is blown into the rotary kiln by the wind power of a combustion-supporting fan to be combusted.

Furthermore, kiln tail flue gas of the rotary kiln is subjected to dust sedimentation through a sedimentation chamber arranged at the kiln tail, then enters a water film dust collector for dust removal, and finally is discharged into the air through a fan.

Further, the sludge is sludge transported from a sewage plant.

Further, the granularity of the clay is below 10mm, and the moisture is 8-12%; the granularity of the sludge is below 5mm, and the water content is 65-75%.

The invention has the following beneficial effects:

the ceramsite prepared by the process is used as a building material, and the sludge is recycled by utilizing the sludge transported by a sewage plant, so that the environmental pollution caused by the sludge is effectively reduced. The fuel of the rotary kiln is bran coat, so that the cost is low and the rotary kiln is more environment-friendly. And the kiln tail flue gas is discharged after being treated during the calcination of the ceramsite, so that the environmental pollution is reduced.

The specific implementation mode is as follows:

the invention relates to a ceramsite production process, which comprises the following process flows of:

1) aging section: sludge from sewage plant is stored in sludge pond with granularity below 5mm and water content of 65-75%. The clay is piled up in a clay piling area, the particle size of the clay is below 10mm, and the moisture is 8-12%.

The clay and the sludge are pre-stirred and mixed according to a required proportion, the stirred materials are fed through a toothed-rod crusher, and heavy oil or other additives (specific additives are added according to actual products required finally) can be added according to requirements in the feeding process. The materials are discharged from the toothed bar type crusher and then enter the double-roller stone removing machine for stone removal, then enter the double-roller crusher for crushing, the materials after being crushed enter the double-shaft stirrer for pre-stirring, and the stirred materials are conveyed to an aging storage yard through a belt conveyor for aging treatment.

2) A feeding and granulating section: and (3) putting the aged material into a bin of a box type feeding machine through a loader, feeding the material through the box type feeding machine, crushing the material in a double-roll crusher, stirring the crushed material in a double-shaft stirrer, conveying the stirred material to a double-roll granulator for granulation, and conveying the prepared raw ceramsite to a rotary kiln through a large-inclination-angle conveyor for calcination.

3) A calcination section: the ceramsite firstly enters a double-layer flap valve at the kiln tail, and the kiln tail flue gas is sealed under the action of gravity arranged on the flap valve, so that the kiln tail flue gas is prevented from overflowing outwards. Through a kiln tail chute, the ceramsite firstly enters a drying chamber of a rotary kiln for drying, and then enters a calcining chamber of the rotary kiln along with the slow forward of the ceramsite in the rotary kiln, the temperature of the ceramsite is gradually heated, the moisture is gradually evaporated, when the ceramsite enters the calcining chamber of the rotary kiln, the temperature of the ceramsite is rapidly heated for reaction, the ceramsite is calcined into ceramic particles, and internal pores are expanded; the calcined ceramsite flows out of the kiln head of the rotary kiln, is lifted to the upper part of the drum screen by the single-bucket elevator, is separated into different particle sizes after being screened by the drum screen, and is accumulated in a storage yard to wait for packing and export sales.

The rotary kiln uses bran as fuel, the cost is low, the rotary kiln is more environment-friendly, the bran is lifted to a bran bin by a bucket elevator to be stored, a spiral feeder is arranged at the bottom of the bran bin, the bran is conveyed to a combustor pipeline, and the bran is blown into the rotary kiln by the wind power of a combustion fan to be combusted.

Kiln tail flue gas of the rotary kiln is subjected to dust sedimentation through a sedimentation chamber arranged at the kiln tail, then enters a water film deduster for dedusting, and finally is discharged into the air through a fan. The kiln tail flue gas is discharged after being treated, so that the environmental pollution is reduced.

The foregoing is only a preferred embodiment of this invention and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the invention and these modifications should also be considered as the protection scope of the invention.