阅读说明：本技术 一种水泥粉磨系统工艺 (Cement grinding system process ) 是由 赵昌洪 闵江宁 李桦溶 王奎 杜平 冯爱军 李代英 于 2020-05-12 设计创作，主要内容包括：本发明公开了一种水泥粉磨系统工艺,包括脱硫石膏料斗、矿渣斗、矸石渣斗、碎石斗、备用料斗和熟料斗,所述脱硫石膏料斗、矿渣斗、矸石渣斗、碎石斗、备用料斗和熟料斗的下端两侧分别安装有第一计量器和第二计量器。本发明不仅通过辊压机与磨机组成的串联联合粉磨工艺,又有矿粉机粉磨组成的并联工艺,提高了水泥生产质量,还解决了粉磨利用率低下的问题,提高了粉煤灰、脱硫石膏等废渣的使用,降低了原料成本的同时还大大的降低了综合电耗,降低了能源消耗和水泥成本,并通过两种粉磨工艺,将矿粉与水泥基料进行勾兑,发挥两种粉磨方式的产品优势互补,达到改善粉磨环境,提高了粉料粉磨效率,方便使用。(The invention discloses a cement grinding system process which comprises a desulfurized gypsum hopper, a slag hopper, a gangue hopper, a broken stone hopper, a standby hopper and a clinker hopper, wherein a first meter and a second meter are respectively arranged on two sides of the lower end of each of the desulfurized gypsum hopper, the slag hopper, the gangue hopper, the broken stone hopper, the standby hopper and the clinker hopper. The invention not only improves the production quality of cement by a series combined grinding process composed of a roller press and a grinding machine, but also has a parallel process composed of mineral powder machine grinding, solves the problem of low grinding utilization rate, improves the use of waste residues such as fly ash, desulfurized gypsum and the like, greatly reduces the comprehensive power consumption and the energy consumption and the cement cost while reducing the raw material cost, blends mineral powder and cement base materials by two grinding processes, exerts the complementary advantages of the products of the two grinding modes, achieves the purposes of improving the grinding environment, improving the grinding efficiency of powder and facilitating the use.)

1. The cement grinding system process comprises a desulfurized gypsum hopper, a slag hopper, a gangue hopper, a broken stone hopper, a standby hopper and a cooked hopper, and is characterized in that: the device comprises a desulfurized gypsum hopper, a slag hopper, a gangue hopper, a broken stone hopper, a spare hopper and a cooked hopper, wherein a first meter and a second meter are respectively arranged on two sides of the lower end of each of the desulfurized gypsum hopper, the slag hopper, the gangue hopper, the broken stone hopper, the spare hopper and the cooked hopper, one ends of five first meters are jointly connected with a stable bin, the lower end of the stable bin is connected with a roller press, one end of the roller press is connected with a V-shaped powder concentrator, one side of the V-shaped powder concentrator is connected with a dynamic powder concentrator, one side of the upper end of a V-shaped powder concentrator chamber is connected with one side of the stable bin, a material conveyor is arranged between the V-shaped powder concentrator and the stable bin, one side of the dynamic powder concentrator is provided with a mixing chute, a dust collector is arranged between the dynamic powder concentrator and the mixing chute, the lower end of the dust collector is connected with a fine powder hopper, the lower end of the fine powder hopper is connected with a fine powder coal ash hopper, the lower end of the dynamic powder concentrator is connected with a grinder, the upper end of mill is equipped with grinds tail dust collector, the lower extreme of one side mill of grinding tail dust collector all connects the one side at the compounding chute, the lower extreme of compounding chute is equipped with out and grinds the cement storehouse, and the compounding chute runs through the setting and grinds the upper end in cement storehouse at play, the lower extreme that goes out to grind the cement storehouse is equipped with out and grinds the counter, the lower extreme that goes out to grind the counter is connected with the blendor, one side of blendor is equipped with the cement storehouse of dispatching from the factory, and one side of blendor is connected in the one side of the cement storehouse of dispatching from the factory.

2. The cement grinding system process according to claim 1, wherein: the lower ends of the five second meters are connected with a mineral powder grinding machine together, one side of the mineral powder grinding machine is connected with a mineral powder warehouse, a mineral powder meter is installed on one side of the mineral powder warehouse, and one side of the mineral powder meter is connected to one side of the mixer.

3. The cement grinding system process according to claim 1, wherein: the mill was an open flow 3.8 x 13M tube mill.

4. The cement grinding system process according to claim 1, wherein: the mineral powder grinding machine is a vertical cement mineral powder grinding machine and is of a model of PCL-269.

5. The cement grinding system process according to claim 1, wherein: and a dust suction device is arranged in the tail grinding dust collector.

Technical Field

The invention relates to the technical field of cement manufacturing equipment, in particular to a cement grinding system process.

Background

The cement grinding is a process of breaking the molecules of the solid material by overcoming the cohesive force between the molecules of the solid material with an external force and reducing the particle size of the material particles, which is called crushing or grinding, grinding for short, and is the last process of cement manufacture and the process with the most power consumption. The main function of the cement mortar is to grind cement clinker (retarder, performance regulating material and the like) to proper granularity (expressed by fineness, specific surface area and the like) to form a certain grain composition, increase the hydration area, accelerate the hydration rate and meet the requirements of cement mortar on setting and hardening.

As the development of a predecomposition kiln is gradually improved, the heat consumption of clinker production is greatly reduced, but the existing cement production quality is low, the comprehensive power consumption is high for a long time, so that the energy consumption is too high, the cement cost is increased, and the problems of low grinding efficiency and low grinding utilization rate still exist in the technology of replacing an impact grinding technology by an extrusion grinding technology, so that the raw material cost is greatly wasted.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides a cement grinding system process.

In order to achieve the purpose, the invention adopts the following technical scheme:

a cement grinding system process comprises a desulfurized gypsum hopper, a slag hopper, a gangue hopper, a broken stone hopper, a spare hopper and a clinker hopper, wherein a first meter and a second meter are respectively installed on two sides of the lower ends of the desulfurized gypsum hopper, the slag hopper, the gangue hopper, the broken stone hopper, the spare hopper and the clinker hopper, one ends of the five first meters are jointly connected with a stable bin, the lower end of the stable bin is connected with a roller press, one end of the roller press is connected with a V-shaped powder concentrator, one side of the V-shaped powder concentrator is connected with a dynamic powder concentrator, one side of the upper end of a V-shaped powder concentrator chamber is connected to one side of the stable bin, a material conveyor is arranged between the V-shaped powder concentrator and the stable bin, one side of the dynamic powder concentrator is provided with a mixing chute, a dust collector is arranged between the dynamic powder concentrator and the mixing chute, the lower end of the dust collector is connected with a fine powder hopper, the lower extreme of thin fine powder hopper is equipped with the farine counter, the lower extreme of farine counter is connected with the fly ash bucket, the lower extreme of developments selection powder machine is connected with the mill, the upper end of mill is equipped with grinds tail dust collector, the lower extreme of one side mill of grinding tail dust collector all connects the one side at the compounding chute, the lower extreme of compounding chute is equipped with out and grinds the cement silo, and the compounding chute runs through the setting in the upper end that goes out to grind the cement silo, the lower extreme that goes out to grind the cement silo is equipped with out and grinds the counter, the lower extreme that goes out to grind the counter is connected with the blendor, one side of blendor is equipped with the cement silo that dispatches from the factory, and one side of blendor is connected in the one side of leaving the cement silo from the factory.

Preferably, the lower ends of the five second meters are connected with a mineral powder grinding machine together, one side of the mineral powder grinding machine is connected with a mineral powder warehouse, one side of the mineral powder warehouse is provided with a mineral powder meter, and one side of the mineral powder meter is connected with one side of the mixer.

Preferably, the mill is an open flow 3.8 x 13M tube mill.

Preferably, the mineral powder mill is a vertical cement mineral powder mill, and the model is PCL-269.

Preferably, a dust suction device is arranged in the tail grinding dust collector.

Compared with the prior art, the invention has the beneficial effects that:

1. the process has the advantages that the process has more ingredients, clinker, desulfurized gypsum, gangue slag and broken stone can be added during the ore grinding and blending, the ground powder prepared by the two processes has different particle sizes, the cement particle size distribution range is wide after the mixture by the mixer, the prepared concrete has excellent performance, and the cement quality is improved;

2. the mineral powder and the cement base material are blended by combining the advantages of high efficiency of a roller press, high quality of a tube mill product and mature technology of grinding the mineral powder by a vertical mill through two grinding processes, the product advantages of the two grinding modes are complemented, the grinding environment is improved, the powder grinding efficiency is improved, and the use is convenient;

3. the dust collector, the tail grinding dust collector, the V-shaped powder concentrator and the dynamic powder concentrator are matched, and the dust collector and the tail grinding dust collector are used for collecting dust-containing gas, so that the problem of low grinding utilization rate is solved, the use of waste residues such as fly ash, desulfurized gypsum and the like is improved, the raw material cost is reduced, the product quality is greatly improved, the production cost is greatly reduced, and the use is convenient;

in conclusion, the invention not only improves the production quality of cement by the serial combined grinding process composed of the roller press and the mill, but also improves the use of waste residues such as fly ash, desulfurized gypsum and the like by the parallel process composed of the grinding of the mineral powder machine, greatly reduces the comprehensive power consumption and the energy consumption and the cement cost while solving the problem of low grinding utilization rate, blends the mineral powder and the cement base material by two grinding processes, exerts the complementary advantages of the two grinding modes, achieves the purposes of improving the grinding environment, improving the grinding efficiency of the powder and facilitating the use.

Drawings

Fig. 1 is a flow chart after the optimization of the cement grinding system process provided by the invention;

FIG. 2 is a flow chart before optimization of a cement grinding system process proposed by the present invention;

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-2, a cement grinding system process comprises a desulfurized gypsum hopper, a slag hopper, a gangue hopper, a broken stone hopper, a standby hopper and a clinker hopper, wherein a first meter and a second meter are respectively installed on two sides of the lower ends of the desulfurized gypsum hopper, the slag hopper, the gangue hopper, the broken stone hopper, the standby hopper and the clinker hopper, one ends of the five first meters are jointly connected with a material stabilizing bin, the lower end of the material stabilizing bin is connected with a roller press, one end of the roller press is connected with a V-shaped powder concentrator, one side of the V-shaped powder concentrator is connected with a dynamic powder concentrator, one side of the upper end of the V-shaped powder concentrator chamber is connected to one side of the material stabilizing bin, a material conveyor is arranged between the V-shaped powder concentrator and the material stabilizing bin, and raw materials in the desulfurized gypsum hopper, the slag hopper, the gangue hopper, the broken stone hopper, the standby hopper and the clinker hopper are respectively conveyed to the material stabilizing bin through the five first meters, after being conveyed into a roller press for crushing and rolling, the materials in the material stabilizing bin are conveyed into a V-shaped powder selecting machine for screening, and coarse particles are conveyed into the material stabilizing bin through a conveyor for secondary rolling and crushing, so that the crushing effect is improved, the raw material cost is saved, and the use is convenient;

the device comprises a dynamic powder concentrator, a mixing chute, a dust collector, a fine powder hopper, a fine powder meter, a fine coal ash hopper, a mill, a tail grinding dust collector, a dust suction device, a mill chute, a dynamic powder concentrator and a mixing chute, wherein the mixing chute is arranged on one side of the dynamic powder concentrator, the dust collector is arranged between the dynamic powder concentrator and the mixing chute, the lower end of the dust collector is connected with the fine powder hopper, the mill is an open-flow 3.8-13M tube mill, the upper end of the mill is provided with the tail grinding dust collector, the dust suction device is arranged in the tail grinding dust collector, the lower end of the mill on one side of the tail grinding dust collector is connected to one side of the mixing chute, raw material fine particles are conveyed into the dynamic powder concentrator for dynamic screening, the fine powder appearing in the air during the dynamic screening is conveyed into the fine powder hopper through the dust collector and then into the coal ash hopper through the fine powder meter, qualified products screened in the dynamic powder concentrator are conveyed into the mixing chute, the grinding coarse powder screened in the dynamic powder concentrator is conveyed to an open-flow 3.8X 13M tube mill for secondary grinding, dust-containing gas in the open-flow 3.8X 13M tube mill is absorbed by a tail grinding dust collector and conveyed into a mixing chute, qualified products ground by the open-flow 3.8X 13M tube mill are conveyed into the mixing chute, and the open-flow 3.8X 13M tube mill is subjected to multiple serial grinding, so that the purpose that the ground powder prepared by two processes has different particle sizes is realized, the distribution range of the particle sizes of the mixed cement is wide, and the prepared concrete has excellent performance;

the lower extreme of compounding chute is equipped with out and grinds the cement silo, and the compounding chute runs through the upper end that sets up at going out and grind the cement silo, the lower extreme that goes out and grind the cement silo is equipped with out and grinds the counter, the lower extreme that goes out to grind the counter is connected with the blendor, one side of blendor is equipped with the cement silo that dispatches from the factory, and one side of blendor is connected in the one side of leaving the factory cement silo, and the powder in the compounding chute enters into out and grinds the cement silo to carry to the blendor in according to production needs through going out and grinding the counter, after the intensive mixing in the blendor, carry to leaving the factory cement silo and wait to pack and dispatch from the factory, facilitate the use.

According to the invention, the lower ends of five second meters are connected with a mineral powder mill together, the mineral powder mill is a vertical cement mineral powder mill and is of a model of PCL-269, one side of the mineral powder mill is connected with a mineral powder warehouse, one side of the mineral powder warehouse is provided with a mineral powder meter, one side of the mineral powder meter is connected with one side of a mixer, raw materials in a desulfurized gypsum hopper, a slag hopper, a gangue slag hopper, a gravel hopper, a standby hopper and a clinker hopper are respectively conveyed into vertical mineral powder for crushing and grinding through the five second meters, qualified ground mineral powder is conveyed into the mineral powder warehouse, and the mineral powder is conveyed into the mixer through the mineral powder meter according to production requirements.

In the invention, when in use, raw materials in a desulfurized gypsum hopper, a slag hopper, a gangue hopper, a gravel hopper, a spare hopper and a clinker hopper are respectively conveyed to a material stabilizing bin through five first meters, materials in the material stabilizing bin are conveyed to a roller press for crushing and rolling, then conveyed to a V-shaped powder concentrator for screening, coarse particles are conveyed to the material stabilizing bin for secondary rolling and crushing through a conveyor, fine particles of the raw materials are conveyed to a dynamic powder concentrator for dynamic screening, fine powder in the air of the dynamic powder concentrator during dynamic screening is conveyed to a fine powder hopper through a dust collector, then conveyed to a fly ash hopper through a fine powder meter, qualified products screened in the dynamic powder concentrator are conveyed to a mixing chute, milled coarse powder screened in the dynamic powder concentrator is conveyed to an open-flow 3.8M pipe mill for secondary grinding, dust-containing gas in the open-flow 3.8M pipe mill is absorbed through a tail grinding dust collector and conveyed to the mixing chute, the qualified product ground by an open-flow 3.8X 13M tube mill is conveyed into a mixing chute, the powder in the mixing chute enters a mill-out cement warehouse and is conveyed into the mixing machine according to production requirements by a mill-out meter, the raw materials in a desulfurized gypsum hopper, a slag hopper, a gangue hopper, a gravel hopper, a standby hopper and a clinker hopper are respectively conveyed into vertical ore grinding powder by five second meters for grinding and grinding, the qualified ground ore powder is conveyed into a mineral powder warehouse, the mineral powder is conveyed into the mixing machine according to the production requirements by the mineral powder meter and is conveyed to the mill-out cement warehouse for packing and delivery after being fully mixed in the mixing machine, the invention adopts the combined grinding technology of 'small grate gap large circulation' and 'roller press double closed-circuit system + ball mill open circuit system', and combines the advantages of high-quality roller press products and high-quality ore powder grinding technology of the vertical mill, and through respective grinding processes, the mineral powder and the cement base material are blended, the product advantages of the two grinding modes are complemented, the grinding environment is improved, the product quality is improved, the comprehensive power consumption of the cement is greatly reduced, the product quality is greatly improved, the production cost is greatly reduced, waste residues such as coal ash, desulfurized gypsum and the like are annually utilized to forty thousand tons, and the cement grinding machine is energy-saving, environment-friendly and convenient to use.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.