CN204620156U - A kind of cement grinding material circulating system - Google Patents

Abstract

The utility model proposes a cement grinding material circulation system, and its equipment includes a feeding belt conveyor, a feeding hopper hoist, a V-shaped powder separator, a stabilizing bin, a roller press, and a returning belt conveyor. machine and cement mill, the V-type powder separator has a feed inlet, a coarse material outlet and a fine material outlet, and the discharge end of the feed bucket elevator is connected to the feed inlet of the V-type powder separator through a feeding pipeline. , the coarse material outlet of the V-type powder separator is connected to the material inlet of the stable material bin, so that the discharge end of the feeding bucket elevator, the V-type powder separator, the stable material bin, the roller press, and the return belt are conveyed The feeding end of the machine and the feeding hopper elevator are connected in series to form a material circulation loop, and the fine material outlet pipe of the V-shaped powder classifier is connected to the cement mill. In particular, the discharging end of the feeding belt conveyor is connected stably The feed port of the silo. The utility model first crushes the cement ingredients into small particles and then circulates them for sorting and crushing, which can effectively reduce the transportation load and increase the efficiency of powder selection, and has the advantages of high efficiency and low energy consumption.

Description

A cement grinding material circulation system

technical field

The utility model relates to the technical field of cement production, in particular to a circulation grinding system in the cement grinding process.

Background technique

In the cement production process, the grinding process is a very important link, which has a very important impact on the quality of cement and production costs. Referring to Fig. 1, the equipment in the existing grinding process includes a feeding belt conveyor 1, a feeding bucket elevator 2, a V-shaped powder separator 3, a stabilizing bin 4, a roller press 5, and a return belt Type conveyor 6 and cement mill 7; V-type powder separator 3 has feed inlet, coarse material outlet 31 and fine material outlet 32; The feed end, the discharge end of the feed hopper elevator 2 is connected to the feed port of the V-type powder separator 3, and the coarse material outlet 31 of the V-type powder selector 3 is connected to the feed port of the stabilizing bin 4, so that the feed The discharge end of the hopper elevator 2, the V-shaped powder separator 3, the stabilizer bin 4, the roller press 5, the return belt conveyor 6 and the feed end of the feed hopper elevator 1 form a material cycle In the circuit, the fine material outlet 32 of the V-type powder separator 3 is connected to the cement mill 7, and the cement ingredients of the cement batching station are sequentially fed by belt conveyor 1→feeding hopper elevator 2→V-type powder separator 3 , V-type powder separator 3 separates the coarse material→stabilizing bin 4→roller press 5→returning belt conveyor 6, together with the newly transported cement ingredients from the feeding belt conveyor 1, it passes through the feeding hopper Elevator 1 → V-type powder separator 3, so that the coarse material selected by V-type powder separator 3 points circulates → roller press 5 crushes → V-type powder separator 3 points, V-type powder separator 3 points Go out fine material and enter cement mill 7 and carry out fine pulverization. The circulating crushing and sorting of the coarse powder of cement ingredients in the existing grinding process is conducive to ensuring the quality of cement products. The disadvantage is that the incoming materials of the cement batching station usually contain large particle materials, which are lifted by the feeding hopper When the machine 2 enters the V-type powder separator 3, first, the transportation of unqualified large-grained materials increases the operating load of the feeding bucket elevator 2; Powder selection efficiency of powder machine 3.

Contents of the invention

The purpose of this utility model is to propose a cement grinding material circulation system, which can effectively reduce the material transportation load, improve the material sorting cycle efficiency, and has the characteristics of high efficiency and low energy consumption.

The purpose of this utility model can be realized through the following technical solutions:

A cement grinding material circulation system, the equipment includes a feeding belt conveyor, a feeding hopper elevator, a V-shaped powder separator, a stabilizing bin, a roller press, a returning belt conveyor and a cement mill , the V-type powder separator has a feed inlet, a coarse material outlet and a fine material outlet. The coarse material outlet of the powder machine is connected to the feed port of the stable feed bin, so that the discharge end of the feed bucket elevator, V-shaped powder separator, stabilized feed bin, roller press, return belt conveyor and feed The feeding end of the bucket elevator is connected in series to form a material circulation loop, the fine material outlet pipe of the V-shaped powder classifier is connected to the cement mill, and the feeding end of the feeding belt conveyor is connected to the feeding port of the stabilizing bin.

In the optimized scheme, a three-way valve is connected in series on the delivery pipeline at the discharge end of the feed hopper elevator, and the discharge end of the feed hopper elevator is connected to the feed port of the V-shaped powder classifier and the cement through the three-way valve pipe. grind.

When the utility model is in operation, the cement batching of the cement batching station is carried out by feeding belt conveyor → stabilizing bin → roller press after pulverization → returning belt conveyor → feeding hopper elevator → V-type powder separator, The fine material separated by the V-type powder separator enters the cement mill, and the coarse material selected by the V-type powder separator→stabilizing bin→after crushing by roller press→returning belt conveyor→feeding hopper elevator →V-type powder classifier, the cement ingredients are first crushed into small particles by a roller press, and then circulated for sorting and crushing.

The utility model has the following substantive features and progress:

1. The utility model effectively reduces the transportation of large-grained cement ingredients into the feeding bucket elevator, and reduces the operating load of the feeding bucket elevator.

2. The utility model effectively prevents large-grain cement ingredients from entering the V-type powder separator, which is conducive to forming a uniform material curtain and improving the powder selection efficiency of the V-type powder separator.

Description of drawings

Fig. 1 is a structural schematic diagram of an existing grinding process.

Fig. 2 is a structural schematic diagram of the utility model.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described.

With reference to Fig. 2, a kind of cement grinding material circulation system, its equipment includes feeding belt conveyor 1, feeding hopper elevator 2, V-shaped powder separator 3, stabilizing bin 4, roller press 5, Return material belt conveyor 6 and cement mill 7.

The V-type powder classifier 3 has a feed inlet, a coarse material outlet 31 and a fine material outlet 32 .

The discharge end of the feeding hopper elevator 2 is respectively connected to the feed port of the V-type powder separator 3 and the cement mill 7 through the three-way valve 8, and the coarse material outlet 31 of the V-type powder separator 3 is connected to the stabilizer bin The material inlet of 4 is used to make the discharge end of the feeding hopper elevator 2, the V-shaped powder separator 3, the stabilizing bin 4, the roller press 5, the return belt conveyor 6 and the feeding hopper elevator 1, the feeding end is connected in series to form a material circulation loop.

The fine material outlet 32 of the V-shaped powder separator 3 is respectively pipe-connected to the cement mill 7, and the discharge end of the feeding belt conveyor 1 is connected to the feed port of the stable feed bin 4.

During the normal operation of the utility model, the three-way valve 8 on the feeding pipeline connects the discharge end of the feeding hopper elevator 2 to the feeding port of the V-type powder separator 3 (not connected to the cement mill 7), and the cement The cement batching in the batching station is carried out by feeding belt conveyor 1→stabilizing bin 4→roller press 5 after pulverization→returning belt conveyor 6→feeding hopper elevator 2→V-type powder separator 3, V Type powder separator 3 separates out coarse material→stabilizing bin 4→roller press 5 after pulverization→returning belt conveyor 6→feed bucket elevator 2→V-type powder separator, so that cement ingredients go through The roller press is crushed into small particles, and then circulated for sorting and crushing. The fine material selected by the V-type powder separator 3 enters the cement mill 7 from the fine material outlet 32 .

When emergency operation is required, the three-way valve 8 on the feeding pipeline connects the discharge end of the feeding bucket elevator 2 to the cement mill 7 (not connected to the feeding port of the V-type powder separator 3), so that the cement batching It directly enters the cement mill 7 for fine crushing, reducing operating procedures and completing cement grinding in the fastest time.

The cement ingredients of the utility model are first crushed into small particles and then recycled for sorting and crushing, which effectively reduces the continuous transportation of large particle ingredients by the feeding bucket elevator 2 and reduces the operating load; at the same time, it increases the V-type powder selection The amount of fine material in machine 3 improves the efficiency of powder selection. The utility model has the advantages of high efficiency and low energy consumption.

Claims (2)

1. A cement grinding material circulation system, its equipment includes a feeding belt conveyor (1), a feeding bucket elevator (2), a V-type powder separator (3), and a stabilizing bin (4) , roller press (5), return material belt conveyor (6) and cement mill (7), and the V-type powder classifier (3) has a feed inlet, a coarse material outlet (31) and a fine material outlet ( 32), the discharge end of the feeding hopper elevator (2) is connected to the feed port of the V-type powder separator (3) through the feeding pipeline, and the coarse material outlet (31) of the V-type powder separator (3) Connect the material inlet of the stable material bin (4), so that the discharge end of the feeding bucket elevator (2), the V-shaped powder separator (3), the stable material bin (4), the roller press (5), The feeding end of the return belt conveyor (6) and the feeding hopper elevator (1) are connected in series to form a material circulation loop, and the fine material outlet (32) of the V-shaped powder separator (3) is connected to the cement mill ( 7), characterized in that: the discharge end of the feeding belt conveyor (1) is connected to the feed port of the stabilization bin (4). 2. The cement grinding material circulation system according to claim 1, characterized in that: a three-way valve (8) is connected in series on the delivery pipeline at the discharge end of the feeding hopper elevator (2), and the feeding hopper elevator The discharge end of the machine (2) is connected to the feed port of the V-type classifier (3) and the cement mill (7) through a three-way valve (8).