CN217016941U - Raw material drying mechanism of superfine vertical mill - Google Patents

Abstract

The utility model discloses a raw material drying mechanism of a superfine vertical mill, which comprises a feed hopper, wherein a conveying device is arranged at the bottom of the feed hopper, a stirring shaft is arranged in the feed hopper, stirring blades are obliquely arranged on the stirring shaft, a ventilation pipe is arranged on the side surface of the lower part of the feed hopper, a ventilating device is arranged at the joint of the ventilation pipe and the feed hopper, the ventilation pipe is communicated with an air supply device capable of adjusting the output air volume temperature, and the drying heat of the ventilation pipe can dry raw coal passing through the mouth of the ventilation pipe in time, so that a conveying motor can work without stopping, and the production efficiency is greatly improved.

Description

Raw material drying mechanism of superfine vertical mill

Technical Field

The utility model relates to the technical field of vertical mill equipment, in particular to a raw material drying mechanism of an ultrafine vertical mill.

Background

The sand mill is a machine which utilizes the high-speed rotation of a main shaft in a grinding bin, a pump wheel on the main shaft drives a grinding medium to move at a high speed to generate great impact, extrusion, friction and shearing force, so that the material can be ground, crushed or deformed and refined, the grinding medium and the refined material are separated by screening, the material which does not pass through the screen is thrown to a cylinder wall with higher density of the grinding medium under the action of centrifugal force, and is further ground under the action of higher extrusion force, or returns to a feeding end along the cylinder wall to carry out next circular grinding.

In recent years, with the great improvement of research and development technologies of grinding machines, vertical grinding technologies of flour mill production enterprises become mature day by day, and the product technical advantages of the vertical grinding are increasingly highlighted. The raw coal is required to be subjected to humidity adjustment before grinding, the common method is to spray water or dry and supply air to the raw coal, but the water content of each part in the raw coal is different, if the humidity is insufficient, the same amount of water is added every time the raw coal is supplied, because a large amount of water is often added in the transportation and production process of the raw coal, generally, the humidity is too high in most cases during use, and if the raw coal is dried, too much time is wasted, and the production efficiency is seriously influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defect that materials needing to be crushed cannot be dried in time in the prior art, and provides a raw material drying mechanism of an ultrafine vertical mill.

The utility model is realized by the following technical scheme: the utility model provides a raw materials stoving mechanism of superfine vertical mill, includes the feeder hopper, the bottom of feeder hopper is provided with conveyor, the inside of feeder hopper is provided with the (mixing) shaft, the slope is provided with stirring vane on the (mixing) shaft, the lower part side of feeder hopper is provided with the ventilation pipe, the ventilation pipe is provided with ventilative device with the feeder hopper junction, the ventilation pipe communicates with the air supply device that can adjust output amount of wind temperature.

Further, the feeder hopper is vertically arranged, and an acute angle is formed between the vertical axis of the feeder hopper and the conveying direction of the conveying device.

Furthermore, the conveying device is an auger conveying device, and a water outlet is formed in the shell of the conveying device and below the feed hopper.

Further, the ventilating pipes are obliquely and downwards arranged on the side wall of the feed hopper, and at least two ventilating pipes are arranged on the feed hopper.

Furthermore, the ventilation device is one of a metal mesh fence and a metal louver fan.

Furthermore, the top of (mixing) shaft is provided with from the driving wheel, follow driving wheel and be connected with the driving motor who sets up in feeder hopper one side through the belt.

The utility model has the beneficial effects that: the bottom of the feed hopper is provided with a conveying device, an acute angle is formed between the vertical axis of the feed hopper and the conveying direction of the conveying device, when in use, because raw coal contains a large amount of moisture, the conveying device is installed upwards at a small angle when in conveying, so that the moisture in the raw coal in the feed hopper can be gathered at the bottom of the conveying device, the direct flow into a vertical mill is prevented, the grinding effect is improved, a water outlet is arranged below the feed hopper on the shell of the conveying device, deposited water can flow out of the water outlet, the discharge of the moisture content in the raw coal is accelerated, the ventilating device is one of a metal mesh fence and a metal louver, the mesh fence is used for reducing the raw coal entering, meanwhile, the number of the ventilating pipes is at least two, when the feed hopper is used for stirring, the raw coal can be dried through the extremely large opening, and if the conveying speed and the stirring speed of the feed hopper are balanced, the drying heat of the two ventilation pipes can dry the raw coal passing through the ventilation pipe orifice in time, so that the conveying motor can work without stopping, and the production efficiency is greatly improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

wherein: 1. a feed hopper; 2. a drive motor; 201. a belt; 202. a driven wheel; 203. a stirring shaft; 204. a stirring blade; 3. a ventilation pipe; 301. a ventilation device; 4. a conveying motor; 401. a packing auger; 5. and a water outlet.

Detailed Description

In the description of the present invention, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; 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.

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. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Example 1

As shown in fig. 1: a raw material drying mechanism of an ultrafine vertical mill comprises a feed hopper 1, wherein the feed hopper 1 is vertically installed, a conveying device is installed at the bottom of the feed hopper 1, an acute angle is formed between the vertical axis of the feed hopper 1 and the conveying direction of the conveying device, when the drying mechanism is used, a large amount of moisture can be contained in raw coal, when the conveying mechanism is conveyed, the conveying device is installed upwards at a small angle, so that the moisture in the raw coal in the feed hopper 1 can be gathered at the bottom of the conveying device, the raw coal is prevented from directly flowing into the vertical mill, the grinding effect is improved, a water outlet 5 is formed in the shell of the conveying device below the feed hopper 1, deposited water can flow out of the water outlet 5, the discharge of the moisture content in the raw coal is accelerated, a valve is installed on the water outlet 5, when the dried raw coal is conveyed, the valve can be closed to prevent the raw coal from leaking, and when the drying mechanism is used again, if the water outlet 5 is blocked, compressed air can be used for blowing through, so that the use is convenient.

Wherein conveyor is auger 401 conveyor, uses auger 401 as the conveyor of raw coal can evenly smooth-going carry into the vertical mill with raw coal when carrying out the feed for vertical mill can be when carrying out the crushing at the uniform velocity even smash, improves crushing quality, accelerates crushing effect. The stirring shaft 203 is vertically arranged in the feeding hopper 1, the driven wheel 202 is arranged at the top of the stirring shaft 203, the driven wheel 202 is connected with the driving motor 2 arranged on one side of the feeding hopper 1 through the belt 201, the rotating speed of the stirring shaft 203 can be controlled through the transmission of the driving motor 2 when in use, and the diameter of the driving wheel is smaller than that of the driven wheel 202, so that the rotating torque of the stirring shaft 203 is greatly improved, the phenomenon that the clamping machine slips when the stirring is rotated is prevented, the rotating effect is improved, meanwhile, more ventilation spaces are provided when drying is carried out, the drying time is shortened, and the crushing is accelerated. Be provided with stirring vane 204 on (mixing) shaft 203 slope, stirring vane 204 slope sets up and makes stirring vane 204's entry point when stirring be the slope, reduces the rotational resistance, improves stirring effect.

The side surface of the lower part of a feed hopper 1 is provided with a vent pipe 3, the vent pipe 3 is communicated with an air supply device capable of adjusting the temperature of output air volume, the vent pipe 3 is obliquely and downwards fixed on the side wall of the feed hopper 1, at least two vent pipes 3 are arranged on the feed hopper 1, hot air is introduced from the bottom of the feed hopper 1 by using the vent pipe 3, the hot air introduced under the action of the feed hopper 1 and a conveying device can be discharged from the upper part of the feed hopper 1, a water outlet 5 and an auger 401, because the auger 401 has longer length and is filled with dried raw coal when in use, little water vapor enters a vertical mill by the auger 401, most of the water vapor can be discharged from the upper part of the feed hopper 1 and then is collected by a collecting device to prevent the environment pollution, meanwhile, a plurality of augers 401 and drying devices can be arranged on the vertical mill, so that when one conveying motor 4 stops conveying the raw coal waiting for drying in the feed hopper 1, conveying motor 4 in another cover starts and then realizes the broken purpose of not stopping material and carrying, the production speed is greatly improved, reduce the stand-by time, install ventilative device 301 in ventilation pipe 3 and 1 junction of feeder hopper, ventilative device 301 is one kind of metal mesh fence and metal louver fan, use mesh fence to reduce raw coal and get into ventilation pipe 3, ventilation pipe 3 has two at least simultaneously, when feeder hopper 1 stirs, raw coal can be dried through 3 mouths of ventilation pipe are very big, if the speed of carrying and the speed of 1 stirring of feeder hopper are balanced, the stoving heat of two ventilation pipes 3, can in time dry the raw coal through 3 mouths of ventilation pipe, make conveying motor 4 reach not shut down work, very big improvement production efficiency.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims (6)

1. The utility model provides a superfine raw materials stoving mechanism who founds mill, includes the feeder hopper, the bottom of feeder hopper is provided with conveyor, its characterized in that: the inside of feeder hopper is provided with the (mixing) shaft, the slope is provided with stirring vane on the (mixing) shaft, the lower part side of feeder hopper is provided with the ventilation pipe, ventilation pipe and feeder hopper junction are provided with ventilative device, the ventilation pipe communicates with the air feed arrangement that can adjust output amount of wind temperature.

2. The raw material drying mechanism of the ultrafine vertical mill according to claim 1, wherein: the feeder hopper is vertically arranged, and an acute angle is formed between the vertical axis of the feeder hopper and the conveying direction of the conveying device.

3. The material drying mechanism of the superfine vertical mill according to claim 2, characterized in that: the conveying device is a screw conveyer, and a water outlet is arranged below the feed hopper on the shell of the conveying device.

4. The material drying mechanism of the superfine vertical mill according to claim 1, wherein: the ventilation pipes are obliquely and downwards arranged on the side wall of the feed hopper, and at least two ventilation pipes are arranged on the feed hopper.

5. The material drying mechanism of the superfine vertical mill according to claim 1, wherein: the ventilating device is one of a metal mesh fence and a metal louver fan.

6. The raw material drying mechanism of the ultrafine vertical mill according to claim 1, wherein: the top of (mixing) shaft is provided with from the driving wheel, be connected with the driving motor who sets up in feeder hopper one side through the belt from the driving wheel.

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