Cement vertical mill and ball mill serial connection device

Abstract

The utility model relates to a cement vertical mill and ball mill serial connection device, which comprises a material distribution system and a serial connection chute, the material distribution system is arranged on a cement vertical mill finished product chute, the material distribution system is connected with the serial connection chute, and the serial connection chute is connected with a ball mill inlet chute; cement raw materials are ground in the vertical mill, collected by the dust collecting bag, then collected to the cement vertical mill finished product chute and conveyed to the connecting series chute, and cement flows into the ball mill inlet chute under the action of air in the connecting series chute and is conveyed to the ball mill for secondary grinding. Cement raw materials are ground in the vertical mill, collected by the dust collecting bag, then collected to the cement vertical mill finished product chute and conveyed to the connecting series chute, and cement flows into the ball mill inlet chute under the action of air in the connecting series chute and is conveyed to the ball mill for secondary grinding. The cement vertical mill and ball mill serial connection device can play the roles of the vertical mill and the ball mill to the greatest extent, improves the specific surface area of cement, reduces the clinker coefficient, and has the characteristics of low investment cost and high return rate.

Description

Technical Field

[0001] The utility model relates to cement vertical mill and ball mill equipment, and more specifically to a cement vertical mill and ball mill series connection device. Background Art

[0002] With the oversupply of cement and the sluggish market, cost reduction and efficiency improvement have become the foundation for major cement companies; clinker is the largest cost of cement, and increasing the specific surface area of ​​cement can effectively reduce the clinker coefficient. The vertical mill is a "material bed crushing" grinding equipment, and the grinding roller of the vertical mill adopts a wheel-shaped arc surface. If one side of the grinding roller surface is worn, it can be turned over and continued to be used, saving costs. And the flip replacement operation is simple, just through the vertical mill rocker arm. The vertical mill does not need to add grinding media, while the ball mill needs to add steel balls as a process assistant. The ball mill is composed of a horizontal cylinder, a hollow shaft for feeding and discharging materials, and a grinding head. The cylinder is a long cylinder, and the equipment is installed in a flat position on the ground. The layout of the land is rectangular. The floor area is wide. The appearance of the vertical mill is an upright standing posture, and the floor area is small. The ball mill can process materials by wet or dry methods. The vertical mill uses dry grinding, and the moisture content of the material is usually less than 10%. However, the integrated drying function can also solve the problem of high moisture content of materials by using hot air to dry them. It is an ideal equipment for the grinding industry that integrates crushing, drying, grinding, and grading and conveying. How to integrate the advantages and disadvantages of vertical mills and ball mills and maximize their mutual effects is imminent. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a cement vertical mill and a ball mill in series device, which can maximize the effects of the vertical mill and the ball mill, increase the specific surface area of ​​cement, and reduce the clinker coefficient.

[0004] The technical solution adopted by the utility model to solve its technical problems is: constructing a cement vertical mill and ball mill series device, including a material distribution system and a series chute, the material distribution system is arranged on the cement vertical mill finished product chute, the material distribution system is connected to the series chute, and the series chute is connected to the ball mill inlet chute; after the cement raw materials are ground in the vertical mill, they are collected by a dust collecting bag and then gathered in the cement vertical mill finished product chute, and transmitted to the connected series chute, and the cement flows into the ball mill inlet chute through the action of air in the connected series chute, and is transported to the ball mill for secondary grinding.

[0005] According to the above scheme, a pneumatic gate valve is provided on the material distribution system.

[0006] The cement vertical mill and ball mill series device of the utility model has the following beneficial effects:

[0007] After the cement raw materials are ground in the vertical mill, they are collected by dust collection bags and then gathered in the finished product chute of the cement vertical mill, and then conveyed to the connecting series chute. In the connecting series chute, the cement flows into the ball mill through the action of air and is conveyed to the ball mill for secondary grinding. The utility model cement vertical mill and ball mill series device can maximize the effects of the vertical mill and the ball mill, increase the specific surface area of ​​cement, reduce the clinker coefficient, and has the characteristics of low investment cost and high return rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0009] Figure 1 This is a schematic diagram of the process of the utility model cement vertical mill and ball mill series device;

[0010] Figure 2 It is a structural schematic diagram of the utility model cement vertical mill and ball mill series device;

[0011] Figure 3 yes Figure 2 Schematic diagram of direction A in . DETAILED DESCRIPTION

[0012] In order to have a clearer understanding of the technical features, purposes and effects of the present utility model, the specific implementation methods of the present utility model are now described in detail with reference to the accompanying drawings.

[0013] like Figure 1-3 As shown, a cement vertical mill and ball mill series device provided by an embodiment of the utility model includes a material distribution system 2 and a series chute 3; the material distribution system 2 is on the finished product chute 1 of the cement vertical mill, the material distribution system 2 is connected to the series chute 3, and the series chute 3 is connected to the mill inlet chute of the ball mill 4.

[0014] For further optimization, in this embodiment, the material distribution system 2 is provided with a pneumatic gate valve, which can select the finished product warehouse or the ball mill 4 according to the type of cement.

[0015] Further optimization, in this embodiment, the original vertical mill and ball mill 4 systems remain independent and unchanged.

[0016] Further optimization, in this embodiment, the specific surface area of ​​the finished cement of the vertical mill can be controlled at 300-340m 2 / kg, the specific surface area can be increased by 40-50m2 through secondary grinding by ball milling 2 / kg.

[0017] The use method of the utility model is as follows: the cement raw material is ground in the vertical mill and then collected by the bag dust collector and then gathered in the cement vertical mill finished product chute 1, and on the cement vertical mill finished product chute 1, it passes through a three-way elbow to the original finished product chute and to the newly added series chute 3; the cement in the series chute 3 flows into the original ball mill 4 through the action of air to the mill chute to the ball mill for secondary grinding.

[0018] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0019] The embodiments of the utility model are described above in conjunction with the accompanying drawings, but the utility model is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the utility model, ordinary technicians in this field can also make many forms without departing from the scope of protection of the utility model and the claims, which all fall within the protection of the utility model.

Claims

1. A cement vertical mill and ball mill in series device, characterized in that: It includes a material distribution system and a series chute, wherein the material distribution system is arranged on the finished product chute of the cement vertical mill, the material distribution system is connected to the series chute, and the series chute is connected to the ball mill inlet chute; after the cement raw materials are ground in the vertical mill, they are collected by a dust collecting bag and then gathered in the finished product chute of the cement vertical mill, and then transmitted to the connected series chute, and the cement flows into the ball mill inlet chute through the action of air in the connected series chute, and is transported to the ball mill for secondary grinding.

2. The cement vertical mill and ball mill series device according to claim 1, characterized in that: The material distribution system is provided with a pneumatic gate valve.

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