阅读说明：本技术 粉状物料直接计量入生料或水泥立磨并提产降耗的方法 (Method for directly metering powdery material into raw material or cement vertical mill and increasing yield and reducing consumption ) 是由 池金果 孙鹏鹏 刘滨 池金鹏 翟续伟 于 2020-06-08 设计创作，主要内容包括：本发明公开了粉状物料直接计量入生料或水泥立磨并提产降耗的方法,包括生料磨,生料磨上连接设有生料磨入磨热风管道,生料磨入磨热风管道上设有粉状物料入磨进料口；粉状物料入磨进料口内设有撒料板,生料磨入磨热风管道远离粉状物料入磨进料口的端部设有输送装置,输送装置上设有计量装置；输送装置远离粉状物料入磨进料口的一端设有粉煤灰储罐；生料磨内设有选粉机。计量装置为计量铰刀、计量转子秤中的一种。输送装置为链斗式提升机、输送皮带、空气斜槽中的一种。本发明与现有技术相比的优点在于：磨机台时提高,可以为后道工序提产提供条件；可以实现缩短粉磨时间增加停磨时间；可以降低粉磨电耗或工序电耗,可以实现提产增加效益。(The invention discloses a method for directly metering powdery materials into a raw material or a cement vertical mill and improving yield and reducing consumption, which comprises a raw material mill, wherein a hot air pipeline of the raw material mill is connected to the raw material mill, and a powdery material feeding port is arranged on the hot air pipeline of the raw material mill; a powder material feeding port is internally provided with a material spreading plate, the end part of a raw material grinding hot air pipeline far away from the powder material feeding port is provided with a conveying device, and the conveying device is provided with a metering device; a fly ash storage tank is arranged at one end of the conveying device, which is far away from the powder material grinding feed inlet; the raw material mill is internally provided with a powder concentrator. The metering device is one of a metering reamer and a metering rotor scale. The conveying device is one of a chain bucket type lifter, a conveying belt and an air chute. Compared with the prior art, the invention has the advantages that: the machine time of the mill is increased, so that conditions can be provided for the subsequent process yield increase; the grinding time can be shortened, and the grinding stopping time can be increased; can reduce the power consumption of grinding or working procedure and can realize the increase of yield and benefit.)

1. The method for directly metering powdery materials into a raw material or a cement vertical mill and increasing the yield and reducing the consumption comprises a raw material mill and is characterized in that: the raw material mill is connected with a raw material mill hot air pipeline, and a powdery material mill feeding port is arranged on the raw material mill hot air pipeline;

a material scattering plate is arranged in the powder material feeding port, a conveying device is arranged at the end part, far away from the powder material feeding port, of the raw material grinding hot air pipeline, and a metering device is arranged on the conveying device;

a fly ash storage tank is arranged at one end of the conveying device, which is far away from the powder material grinding feed inlet;

a powder selecting machine is arranged in the raw material mill.

2. The method of claim 1 for directly metering powdery material into a raw meal or a cement vertical mill and increasing yield and reducing consumption, characterized in that: the metering device is one of a metering reamer and a metering rotor scale.

3. The method of claim 1 for directly metering powdery material into a raw meal or a cement vertical mill and increasing yield and reducing consumption, characterized in that: the conveying device is one of a chain bucket type lifter, a conveying belt and an air chute.

Technical Field

The invention relates to the technical field of cement production, in particular to the field of cement and raw material vertical mills (or roller presses or roller mills).

Background

The present technological process adopts spiral reamer, air chute, rotor scale and other metering facilities to meter and feed the material into mill, and the fine powder material results in secondary grinding and waste of energy consumption. Because the fineness of the powdery material is fine and is close to or even lower than the fineness requirement of the raw material or the cement, the powder can be directly mixed with other ground materials to prepare the raw material or the cement by selecting a proper position without a grinding process, thereby reducing the energy consumption.

Disclosure of Invention

The invention aims to solve the problems mentioned in the background technology and provide a method for directly metering powdery materials into a raw material or a cement vertical mill and improving the yield and reducing the consumption.

In order to solve the technical problems, the technical scheme provided by the invention is as follows: a method for directly metering powdery materials into a raw material or a cement vertical mill and improving yield and reducing consumption comprises a raw material mill, wherein a hot air pipeline of the raw material mill is connected to the raw material mill, and a powdery material feeding port is arranged on the hot air pipeline of the raw material mill;

a material scattering plate is arranged in the powder material feeding port, a conveying device is arranged at the end part, far away from the powder material feeding port, of the raw material grinding hot air pipeline, and a metering device is arranged on the conveying device;

a fly ash storage tank is arranged at one end of the conveying device, which is far away from the powder material grinding feed inlet;

a powder selecting machine is arranged in the raw material mill.

Preferably, the metering device is one of a metering reamer and a metering rotor scale.

Preferably, the conveying device is one of a bucket elevator, a conveying belt and an air chute.

Compared with the prior art, the invention has the advantages that: the time of the mill is increased, the yield increase amplitude is about 50 to 150 percent of the actual adding quantity of the powdery material, and conditions can be provided for the yield increase of the subsequent process; the grinding time can be shortened, and the grinding stopping time can be increased; can reduce the power consumption of grinding or working procedure and can realize the increase of yield and benefit.

Drawings

Fig. 1 is a schematic structural view of the present invention.

As shown in the figure: 1. raw material grinding, 2, raw material grinding into a grinding hot air pipeline, 3, powdery material grinding into a grinding feed inlet, 4, a material scattering plate, 5, a metering device, 6, a conveying device, 7, a powder concentrator, 8 and a fly ash storage tank.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "back", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the resulting method or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; the connection can be mechanical connection or point connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

With the attached drawing, the method for directly metering powdery materials into a raw material or a cement vertical mill and increasing the yield and reducing the consumption comprises a raw material mill 1, wherein a raw material mill inlet hot air pipeline 2 is connected to the raw material mill 1, and a powdery material mill inlet 3 is arranged on the raw material mill inlet hot air pipeline 2;

a material scattering plate 4 is arranged in the powdery material grinding feed inlet 3, a conveying device 6 is arranged at the end part, far away from the powdery material grinding feed inlet 3, of the raw material grinding hot air pipeline 2, and a metering device 5 is arranged on the conveying device 6;

a fly ash storage tank 8 is arranged at one end of the conveying device, which is far away from the powdery material grinding feed inlet 3;

the raw meal mill 1 is internally provided with a powder concentrator 7.

The metering device 5 is one of a metering reamer and a metering rotor scale.

The conveying device 6 is one of a chain bucket type lifter, a conveying belt and an air chute.

When the invention is implemented specifically, the fly ash stored in the storage tank can sequentially pass through the steady flow reamer, the metering reamer, the chute and the chain bucket elevator, or pass through the combination of the metering rotor scale and other conveying implements, the fly ash enters a raw material mill and enters a hot air pipeline of the raw material mill, a feed inlet is newly opened, a material scattering plate is arranged in the feed inlet of the hot air pipeline of the raw material mill in a forward direction, the function of dispersing the materials is achieved, the dispersed materials enter the raw material mill along with the hot air entering the raw material mill, the pulverized materials are not ground by rolling of the grinding roller and the grinding disc, and the pulverized materials directly pass through the powder concentrator along; in addition, powdery materials such as fly ash can also skip into the hot grinding air pipeline and directly enter the mill shell to carry out subsequent processing procedures.

The invention has the following substantive characteristics and progresses: the shutdown time of the raw material vertical mill is increased by about 30 hours before each month, the running power of the mill system is about 6000kwh, the electricity can be saved by about 180000kwh each month, the electricity charge is calculated according to 7 months of operation each year, the annual benefit amount is 180000 multiplied by 7 multiplied by 0.6 yuan/degree, 756000 yuan is increased, and the annual benefit amount is about 75.6 ten thousand yuan.

The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.