CN215901934U

CN215901934U - Energy-saving device of vertical mill external circulation elevator

Info

Publication number: CN215901934U
Application number: CN202122124207.8U
Authority: CN
Inventors: 郑钊; 孙京哲
Original assignee: Huawo Zaozhuang Cement Co ltd
Current assignee: Huawo Zaozhuang Cement Co ltd
Priority date: 2021-09-04
Filing date: 2021-09-04
Publication date: 2022-02-25
Anticipated expiration: 2031-09-04

Abstract

The utility model discloses an energy-saving device of an external circulation elevator of a vertical mill, which comprises a main mill and an elevator, wherein a return pipe is fixedly arranged at the top of the main mill, a mill outlet chute is fixedly arranged at the bottom of the main mill, the elevator is arranged at one side of the main mill, a belt conveyor is arranged at the top of the elevator, the tail end of the belt conveyor is arranged at the top of the return pipe, a pit belt conveyor is arranged at the bottom of the elevator, the tail end of the mill outlet chute is arranged at the top of the pit belt conveyor, a buffer bin is fixedly arranged in the middle of the mill outlet chute, a detention area and a material pushing area are arranged in the buffer bin, a material inlet is arranged at one side of the top of the detention area, a material outlet is arranged at one side of the bottom of the material pushing area far away from the material inlet, has higher energy-saving efficiency.

Description

Energy-saving device of vertical mill external circulation elevator

Technical Field

The utility model relates to the technical field of cement production, in particular to an energy-saving device of a vertical mill external circulation hoister.

Background

With the continuous development of cement production technology and the increasing size of cement industry, the roller type vertical mill is widely applied to the cement industry, which is generally accepted by people mainly because of its unique advantages in the aspects of working principle, grinding mechanism, equipment structure, system manufacturability and the like. Such as: the process system is simple and convenient to control, can greatly utilize the kiln tail waste gas of the preheater kiln, saves energy consumption, has high grinding efficiency, has small floor area, simple process system, low capital investment, low energy consumption, low metal consumption and low noise compared with a ball milling system, has small weight compared with a ball mill in both a system and a single machine, and can save a large amount of metal materials. In recent years, roller mills have been widely used in domestic and foreign cement production, and at present, many manufacturers in domestic use adopt roller mills to grind materials such as cement raw materials, raw coal, cement clinker, slag and the like, and are well determined.

The slag discharge of the cement enterprise raw material vertical mill is conveyed back to the vertical mill through the elevator and the two belt conveyors, the slag discharge amount is about 1 ton per shift, the designed conveying amount of the elevator is 250 t/h, the actual load is very small, the cement enterprise raw material vertical mill is basically in an idle running state, a large amount of useless work can be done in the actual use process, the electric energy is wasted, and the production cost is increased. Therefore, the energy-saving device of the vertical mill external circulation elevator is improved.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model provides the following technical scheme:

the utility model discloses an energy-saving device of a vertical mill external circulation elevator, which comprises a main mill and an elevator, wherein a return pipe is fixedly arranged at the top of the main mill, a mill outlet chute is fixedly arranged at the bottom of the main mill, the elevator is arranged on one side of the main mill, a belt conveyor is arranged at the top of the elevator, the tail end of the belt conveyor is arranged at the top of the return pipe, a pit belt conveyor is arranged at the bottom of the elevator, the tail end of the mill outlet chute is arranged at the top of the pit belt conveyor, a buffer bin is fixedly arranged in the middle of the mill outlet chute, a retention area and a material pushing area are arranged in the buffer bin, a material inlet is arranged on one side of the top of the retention area, and a material outlet is arranged on one side of the bottom of the material pushing area, which is far away from the material inlet.

As a preferable technical scheme of the utility model, the top of the inner wall of the detention area is fixedly provided with a flow distribution plate, the flow distribution plate is arranged at the bottom of the feeding port, one side of the inner wall of the detention area is fixedly provided with a spring shifting piece at the bottom of the flow distribution plate, and a bearing area of the spring shifting piece is arranged at the bottom of the feeding port.

As a preferred technical scheme of the utility model, the inner wall of the material pushing area is arranged to be cylindrical, the middle part of the material pushing area is rotatably connected with the spiral push rod through a bearing, the outer wall of the material pushing area is fixedly provided with a motor, and a rotating shaft of the motor is fixedly connected with a rotating shaft of the spiral push rod.

As a preferable technical scheme of the utility model, the retention area and the material pushing area are rotationally connected with two buffer rollers through bearings, and the buffer rollers are symmetrically arranged at the top of the spiral push rod.

As a preferable technical scheme of the utility model, two charge level indicators are arranged in the detention zone, the two charge level indicators are respectively arranged on one side of the middle part and one side of the top part of the detention zone, and the charge level indicator on one side of the middle part is electrically connected with the warning lamp.

As a preferred technical scheme of the utility model, the middle part of the feeding port is fixedly provided with a feeding rod valve, and the middle part of the discharging port is fixedly provided with a discharging rod valve.

As a preferred technical scheme of the utility model, one side of the bottom of the elevator is fixedly provided with a control box, and the control box is electrically connected with a motor, a charge level indicator, a feeding rod valve and a discharging rod valve.

The utility model has the beneficial effects that: the energy-saving device of the vertical mill external circulation hoister is different from the traditional vertical mill external circulation hoister and has the characteristics of temporary storage of material slag and high efficiency and energy conservation; by arranging the buffer bin, the elevator and the belt conveyor are not started before the buffer bin is filled with the slag, so that the time of the elevator and the belt conveyor in an idle running state is greatly reduced, the output of idle work is reduced, the electric energy saving effect is obvious, and the production cost is effectively reduced; the operation time of the elevator and the belt conveyor is greatly shortened, the abrasion loss of the elevator and the belt conveyor can be reduced, the service lives of the elevator and the belt conveyor are effectively prolonged, and the maintenance cost is saved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic view of an installation structure of an energy-saving device of a vertical mill external circulation elevator of the utility model;

FIG. 2 is a schematic diagram of the internal structure of an energy-saving device of a vertical mill external circulation elevator of the utility model;

fig. 3 is a schematic diagram of a buffer roller mounting position structure of an energy-saving device of an external circulation hoister of a vertical mill.

In the figure: 1. main grinding; 2. a hoist; 3. a return pipe; 4. taking out the grinding chute; 5. a belt conveyor; 6. a pit belt conveyor; 7. a buffer bin; 8. a stagnant zone; 9. a material pushing area; 10. a feeding port; 11. a discharge port; 12. a flow distribution plate; 13. a spring paddle; 14. a screw push rod; 15. a motor; 16. a buffer roller; 17. a level gauge; 18. a feed rod valve; 19. and (4) discharging a rod valve.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

As shown in fig. 1-3, the energy-saving device for the vertical mill external circulation elevator comprises a main mill 1 and an elevator 2, wherein a return pipe 3 is fixedly arranged at the top of the main mill 1, an outlet mill chute 4 is fixedly arranged at the bottom of the main mill 1, the elevator 2 is arranged on one side of the main mill 1, a belt conveyor 5 is arranged at the top of the elevator 2, the tail end of the belt conveyor 5 is arranged at the top of the return pipe 3, a pit belt conveyor 6 is arranged at the bottom of the elevator 2, the tail end of the outlet mill chute 4 is arranged at the top of the pit belt conveyor 6, a buffer bin 7 is fixedly arranged in the middle of the outlet mill chute 4, a retention area 8 and a material pushing area 9 are arranged in the buffer bin 7, a material inlet 10 is arranged on one side of the top of the retention area 8, and a material outlet 11 is arranged on one side of the bottom of the material pushing area 9 far away from the material inlet 10.

Wherein, the top of the inner wall of the detention zone 8 is fixedly provided with a splitter plate 12, the splitter plate 12 is arranged at the bottom of the feeding port 10, one side of the inner wall of the detention zone 8 is positioned at the bottom of the splitter plate 12 and is fixedly provided with a spring shifting piece 13, the bearing area of the spring shifting piece 13 is arranged at the bottom of the feeding port 10, and the material slag entering the buffer bin 7 can be scattered more uniformly in the detention zone 8 by arranging the splitter plate 12 and the spring shifting piece 13, which is beneficial to storing more material slag.

The inner wall of the material pushing area 9 is arranged to be cylindrical, the middle of the material pushing area 9 is rotatably connected with the spiral push rod 14 through a bearing, the outer wall of the material pushing area 9 is fixedly provided with the motor 15, a rotating shaft of the motor 15 is fixedly connected with a rotating shaft of the spiral push rod 14, and the spiral push rod 14 is arranged to push material slag in the material pushing area 9 to the material outlet 11, so that the material slag can be discharged conveniently.

Wherein, detain and connect buffer roll 16 through the bearing rotation between district 8 and the material pushing area 9, buffer roll 16 is total two, and buffer roll 16 is the symmetry setting at the top of screw rod 14, through being the symmetry setting with buffer roll 16 at the top of screw rod 14, makes the material sediment that falls can not directly drop and pushes away material district 9, reduces the striking that screw rod 14 received, under the effect of buffer roll 16, makes the material sediment slide into after being slowed down and pushes away material district 9, makes equipment operation more steady.

Wherein, the inside of detention district 8 is provided with two charge level indicators 17, and two charge level indicators 17 set up respectively in middle part one side and top one side of detention district 8, and charge level indicator 17 electric connection warning light of middle part one side through setting up two charge level indicators 17, and middle part one side is used for reporting to the police, reminds well accuse personnel to pay attention to, and top one side is used for jumping the mill, avoids the material to spill over surge bin 7.

Wherein, the middle part of pan feeding mouth 10 is fixed and is equipped with into material stick valve 18, and the middle part of discharge gate 11 is fixed and is equipped with out material stick valve 19, through setting up into material stick valve 18 and out material stick valve 19, can be convenient for carry out the storage and the emission of material sediment to surge bin 7.

Wherein, the fixed control box that is equipped with in bottom one side of lifting machine 2, control box and motor 15, charge level indicator 17, pan feeding stick valve 18 and the electrical connection of play material stick valve 19, through setting up the control box, the worker's operation of can being convenient for is used.

When the device works, the discharging rod valve 19 is closed, the slag enters the detention area 8 from the feeding port 10, after the guiding action of the splitter plate 12 and the spring plectrum 13, the slag is uniformly scattered in the detention area 8, falls on the buffer roller 16, falls on the material pushing area 9 after being buffered by the buffer roller 16, the slag accumulation gradually rises along with the increasing amount of the slag accumulated in the detention area 8, the warning lamp starts to give an alarm after the material level gauge 17 on one side of the middle part senses the position of the slag, the vertical mill stops working after the material level gauge 17 on one side of the top part senses the position of the slag, when the material is discharged, the elevator 2, the conveying belt machine 5 and the pit belt machine 6 are started, the feeding rod valve 18 is closed, the discharging rod valve 19 is opened, the feeding rod valve 18 is opened after the material is discharged, the discharging rod valve 19 is closed, the elevator 2, the conveying belt machine 5 and the pit 6 are stopped, and the next cycle is started, through setting up screw rod 14, can push away the material sediment propelling movement to discharge gate 11 in the material area 9, be convenient for the discharge of material sediment, through being the symmetry setting with buffer roll 16 at screw rod 14's top, make the material sediment that falls can not directly drop and push away material area 9, reduce the striking that screw rod 14 received, under buffer roll 16's effect, make the material sediment slide into after being slowed down and push away material area 9, make equipment operation more steady, through setting up material stick valve 18 and the material stick valve 19 of putting into, can be convenient for carry out the storage and the emission of material sediment to surge bin 7.

Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device 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.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be 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 by those skilled in the art according to specific situations.

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 changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The energy-saving device of the vertical mill external circulation elevator comprises a main mill (1) and an elevator (2), and is characterized in that a return pipe (3) is fixedly arranged at the top of the main mill (1), an outlet mill elephant trunk (4) is fixedly arranged at the bottom of the main mill (1), the elevator (2) is arranged on one side of the main mill (1), a belt conveyor (5) is arranged at the top of the elevator (2), the tail end of the belt conveyor (5) is arranged at the top of the return pipe (3), a pit belt conveyor (6) is arranged at the bottom of the elevator (2), the tail end of the outlet mill elephant trunk (4) is arranged at the top of the pit belt conveyor (6), a buffer bin (7) is fixedly arranged at the middle part of the outlet mill elephant trunk (4), a retention area (8) and a material pushing area (9) are arranged in the buffer bin (7), and a retention inlet (10) is arranged on one side of the top of the retention area (8), a discharge hole (11) is formed in one side, away from the feeding hole (10), of the bottom of the material pushing area (9).

2. The energy-saving device for the vertical mill external circulation hoister according to claim 1, wherein a splitter plate (12) is fixedly arranged at the top of the inner wall of the retention area (8), the splitter plate (12) is arranged at the bottom of the feeding port (10), a spring shifting piece (13) is fixedly arranged at one side of the inner wall of the retention area (8) and positioned at the bottom of the splitter plate (12), and a bearing area of the spring shifting piece (13) is arranged at the bottom of the feeding port (10).

3. The energy-saving device for the vertical mill external circulation hoister according to claim 1, wherein the inner wall of the material pushing area (9) is cylindrical, the middle part of the material pushing area (9) is rotatably connected with the spiral push rod (14) through a bearing, the outer wall of the material pushing area (9) is fixedly provided with a motor (15), and a rotating shaft of the motor (15) is fixedly connected with a rotating shaft of the spiral push rod (14).

4. The energy-saving device for the vertical mill external circulation hoister as claimed in claim 3, wherein the retention area (8) and the pushing area (9) are rotatably connected with the buffer rollers (16) through bearings, the number of the buffer rollers (16) is two, and the buffer rollers (16) are symmetrically arranged at the top of the spiral push rod (14).

5. The energy-saving device for the vertical mill external circulation hoister as claimed in claim 1, wherein two charge level indicators (17) are arranged in the detention area (8), the two charge level indicators (17) are respectively arranged on one side of the middle part and one side of the top part of the detention area (8), and the charge level indicator (17) on one side of the middle part is electrically connected with a warning lamp.

6. The energy-saving device for the vertical mill external circulation hoister as claimed in claim 1, wherein a feeding rod valve (18) is fixedly arranged in the middle of the feeding port (10), and a discharging rod valve (19) is fixedly arranged in the middle of the discharging port (11).

7. The energy-saving device for the vertical mill external circulation hoister as claimed in claim 3, 5 or 6, wherein a control box is fixedly arranged on one side of the bottom of the hoister (2), and the control box is electrically connected with the motor (15), the level meter (17) on one side of the top, the feeding rod valve (18) and the discharging rod valve (19).