CN212975461U

CN212975461U - External circulation system of linear raw material mill

Info

Publication number: CN212975461U
Application number: CN202021545482.6U
Authority: CN
Inventors: 张斌政
Original assignee: Liaoning Hengwei Cement Group Co ltd
Current assignee: Liaoning Hengwei Cement Group Co ltd
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2021-04-16
Anticipated expiration: 2030-07-30

Abstract

A ray of raw material grinds outer circulation system belongs to mill auxiliary assembly technical field, concretely relates to ray of raw material grinds outer circulation system. The utility model provides a need not outer row of sediment system, three gate valve devices long service life, hot-blast passage air exhaust stable a ray of raw material mill outer circulation system. The utility model comprises a mill, wherein a feed inlet above the mill is connected with three gate valve devices, and the upper ends of the three gate valve devices are connected with a hoisting machine through a feeding belt; the mill lower extreme is provided with the discharge gate, and mill side is provided with hot-blast main through the connecting pipe, its characterized in that: and a discharge hole at the lower end of the mill is provided with a material slag belt, and the tail end of the material slag belt is connected with an inlet of the hoister.

Description

External circulation system of linear raw material mill

Technical Field

The utility model belongs to the technical field of mill auxiliary assembly, concretely relates to an outer circulation system of ray raw material mill.

Background

The first line raw mill system has the following defects: 1. and an external slag discharge system is not provided, slag discharge of the mill is manually treated, a forklift is occupied, and the cost is high.

2. In the feeding process of the first-line raw material mill, hot air in the mill needs to be prevented from being blown out from a feeding end; the current mode is to use a device with three gate valves inside to lock wind; however, the existing three-way gate valve device is poor in air locking effect, multiple in daily maintenance, and only needs to be overhauled once in half a year, so that the production efficiency is influenced.

3. The corners of the hot air pipelines of the mill are easy to generate dead corners, materials are accumulated at the dead corners after long-term use, the ventilation area of the pipelines is reduced, and the ventilation is not smooth, so that the production is influenced.

Disclosure of Invention

The utility model discloses be exactly to above-mentioned problem, provide one kind and need not outer row's sediment system, three gate valve devices long service life, hot-blast channel air exhaust stable an ray of raw material grinds outer circulation system.

In order to realize the above purpose of the utility model, the utility model adopts the following technical proposal that the utility model comprises a mill, a feed inlet above the mill is connected with three gate valve devices, and the upper ends of the three gate valve devices are connected with a hoisting machine through a feeding belt; the mill lower extreme is provided with the discharge gate, and mill side is provided with hot-blast main through the connecting pipe, its characterized in that: and a discharge hole at the lower end of the mill is provided with a material slag belt, and the tail end of the material slag belt is connected with an inlet of the hoister.

As a preferred scheme of the utility model, the connecting pipe corner is provided with the unloading scraper-trough conveyer, and unloading scraper-trough conveyer lower extreme links to each other with a recovery belt, recovery belt terminal with the material sediment belt is corresponding.

As another preferred scheme of the utility model, the three-way gate valve device comprises a gate valve channel, three inclined sealing flanges are arranged in the channel, a bearing seat is arranged at the upper end of the sealing flange in the channel, and the bearing seat is provided with a gate valve plate through a rotating shaft; an opening and closing brake oil cylinder connected with the rotating shaft is arranged outside the channel, a wear-resistant lining plate is arranged on the inner surface of the channel, and an installation notch is formed in the wear-resistant lining plate corresponding to the bearing seat.

Furthermore, the wear-resistant lining plate is of a splicing structure, the wear-resistant lining plate of the splicing structure comprises two bearing mounting surfaces and side surfaces, the bearing mounting surfaces comprise triangular bodies below one side of the acute angle of the inclined sealing flange, and the triangular bodies and the sealing flange are combined to form right-angled triangles by taking the vertical sides of the triangular bodies as right-angled sides; a trapezoid body with a large upper part and a small lower part is arranged on the obtuse angle side of the sealing flange, and a right-angle side is arranged on the side, which is not in contact with the sealing flange, of the trapezoid body; a rectangular body is arranged on the side of the triangular body, a special-shaped body is arranged above the rectangular body, and a gap is arranged on the special-shaped body corresponding to the bearing seat; one side of the right-angle side of the special-shaped body is provided with an upper plate body, one side of the notch of the special-shaped body is also provided with an upper plate body, a gap is arranged between the upper plate body and the notch, and the side surface is an integral plate or a split plate.

Furthermore, the rectangular body and the trapezoid body are both arranged into an upper part and a lower part, the upper part and the lower part of the rectangular body are completely the same, the height of the rectangular body is the same as that of the trapezoid body, the height of the upper half part of the rectangular body is the same as that of the upper half part of the trapezoid body, and the height of the lower half part of the rectangular body is the same as that of the lower half part of the trapezoid body.

Furthermore, the upper plate body is rectangular and is formed by splicing two parts which are equal to each other on the left and the right.

Further, the wear-resistant lining plate is fixed on the inner surface of the gate valve channel through a countersunk head screw.

As a third preferred proposal of the utility model, the end of the material slag belt is provided with a permanent magnet deironing device.

The utility model has the advantages that: the utility model discloses from mill discharge gate exhaust material sediment, on material sediment belt transmission to the lifting machine, have lifting machine, pan feeding belt, three gate valve devices to return the mill again, can be with once not having the further grinding of the bold material sediment of grinding to reduce the formation of material sediment by a wide margin, arrange the sediment work and reduce by a wide margin, practice thrift manufacturing cost.

The three-way gate valve device of the utility model has the wind locking effect gradually reduced after long-term use, and is determined to be caused by the abrasion of the inner wall of the gate valve channel after the test and observation; after the wear-resistant lining plate is installed, the wear resistance of the gate valve channel can be effectively improved, so that the wind locking performance of the three-way gate valve device is improved; the maintenance is not needed in daily life, and the lining plate can be repaired and replaced regularly (more than one year).

The utility model discloses a wear-resisting welt sets up to polylith components of a whole that can function independently structure, when overhauing, can change the serious piece of wearing and tearing, and the not serious one that wears can continue to use, practices thrift the maintenance cost.

The utility model discloses set up the unloading scraper-trough conveyer in the corner of connecting pipe, can not pile up at its inside powder, the powder falls on retrieving the belt through the unloading scraper-trough conveyer, returns the mill through material sediment belt, lifting machine and follow-up equipment again in, prevents that the connecting pipe internal diameter diminishes, influences equipment and airs exhaust.

The utility model discloses after the configuration permanent magnetism deironing device, basically need not to arrange the sediment operation, only regularly clear up the permanent magnetism deironing device can.

Drawings

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

Fig. 2 is a schematic structural view of the three-way gate valve device.

Fig. 3 is a schematic structural view of the wear-resistant lining plate.

In the figure, 1 is a rectangular body, 2 is a special-shaped body, 3 is an upper plate body, 4 is the upper half part of a trapezoidal body, 5 is the lower half part of the trapezoidal body, 6 is a triangular body, 7 is a gate valve channel, 8 is a gate valve plate, 9 is a bearing seat, 10 is a crank, 11 is an opening and closing gate oil cylinder, 12 is a sealing flange, 13 is a rotating shaft, 14 is an installation gap, 15 is the trapezoidal body, 16 is a lifting machine, 17 is a hot air pipeline, 18 is a feeding belt, 19 is a three-way gate valve device, 20 is a grinding machine, 21 is a corner, 22 is a blanking chute, 23 is a recovery belt, 24 is a discharge port, 25 is a material slag belt, 26 is a connecting pipe and 27 is a permanent magnet device.

Detailed Description

The utility model comprises a mill 20, wherein a feed inlet above the mill 20 is connected with a three-way gate valve device 19, and the upper end of the three-way gate valve device 19 is connected with a hoisting machine 16 through a feeding belt 18; the lower extreme of mill 20 is provided with discharge gate 24, and mill 20 side is provided with hot-blast main 17 through connecting pipe 26, its characterized in that: a discharge hole 24 at the lower end of the mill 20 is provided with a slag belt 25, and the tail end of the slag belt 25 is connected with an inlet of the hoister 16.

As an optimized proposal of the utility model, the connecting pipe 26 corner 21 is provided with the unloading scraper-trough conveyer 22, the unloading scraper-trough conveyer 22 lower extreme links to each other with a recovery belt 23, the recovery belt 23 terminal with the material sediment belt 25 is corresponding.

As another preferred scheme of the utility model, the three-way gate valve device 19 comprises a gate valve channel 7, three inclined sealing flanges 12 are arranged in the channel, a bearing seat 9 is arranged at the upper end of the sealing flange 12 in the channel, and the bearing seat 9 is provided with a gate valve plate 8 through a rotating shaft 13; an opening and closing brake oil cylinder 11 connected with a rotating shaft 13 is arranged outside the channel, a wear-resistant lining plate is arranged on the inner surface of the channel, and a mounting notch 14 is arranged on the wear-resistant lining plate corresponding to the bearing block 9.

Furthermore, the wear-resistant lining plate is of a splicing structure, the wear-resistant lining plate of the splicing structure comprises two bearing mounting surfaces and side surfaces, the bearing mounting surfaces comprise triangular bodies 6 below one side of the acute angle of the inclined sealing flange 12, and the triangular bodies 6 and the sealing flange 12 are combined to form a right-angled triangle by taking the vertical side of the triangular bodies 6 as a right-angled side; a trapezoid body 15 with a large upper part and a small lower part is arranged on the obtuse angle side of the sealing flange 12, and a right-angle side is arranged on the side, which is not contacted with the sealing flange 12, of the trapezoid body 15; a rectangular body 1 is arranged on the side of the triangular body 6, a special-shaped body 2 is arranged above the rectangular body 1, and a gap is arranged on the special-shaped body 2 corresponding to the bearing seat 9; one side of 2 right-angle sides of the profile body is provided with an upper plate body 3, one side of a notch of the profile body 2 is also provided with the upper plate body 3, a gap is arranged between the upper plate body 3 and the notch, and the side surface is an integral plate or a split plate.

Furthermore, the rectangular body 1 and the trapezoid body 15 are both arranged into an upper part and a lower part, the upper part and the lower part of the rectangular body 1 are completely the same, the heights of the rectangular body 1 and the trapezoid body 15 are the same, the heights of the upper half part of the rectangular body 1 and the upper half part 4 of the trapezoid body 15 are the same, and the heights of the lower half part of the rectangular body 1 and the lower half part 5 of the trapezoid body 15 are the same.

Furthermore, the upper plate body 3 is rectangular and formed by splicing two parts which are equal to each other on the left and the right.

The wear-resistant lining plate after being split can be reduced to lining plates with six different shapes, spare parts with different quantities can be prepared according to the size of the required type of consumption and the different abrasion conditions of corresponding positions, and equipment maintenance and spare part management are easy.

Further, the wear-resistant lining plate is fixed on the inner surface of the gate valve channel 7 through a countersunk head screw.

The opening and closing brake oil cylinder 11 is connected with the rotating shaft 13 through a crank 10.

The wear-resistant lining plate can be made of high-chromium alloy materials, and the high-chromium alloy materials can be purchased from the market.

As a third preferred scheme of the utility model, the end of the material slag belt 25 is provided with a permanent magnet deironing device 27.

It should be understood that the above detailed description of the present invention is only for illustrating the present invention and is not limited by the technical solutions described in the embodiments of the present invention, and those skilled in the art should understand that the present invention can still be modified or equivalently replaced to achieve the same technical effects; as long as the use requirement is satisfied, the utility model is within the protection scope.

Claims

1. The external circulation system of the single-line raw material mill comprises a mill (20), wherein a feed inlet above the mill (20) is connected with three gate valve devices (19), and the upper ends of the three gate valve devices (19) are connected with a lifter (16) through a feeding belt (18); mill (20) lower extreme is provided with discharge gate (24), and mill (20) side is provided with hot-blast main (17), its characterized in that through connecting pipe (26): a discharge hole (24) at the lower end of the mill (20) is provided with a material slag belt (25), and the tail end of the material slag belt (25) is connected with an inlet of the hoister (16).

2. The off-line raw mill circulation system of claim 1, wherein: a blanking scraper-trough conveyer (22) is arranged at the corner (21) of the connecting pipe (26), the lower end of the blanking scraper-trough conveyer (22) is connected with a recycling belt (23), and the tail end of the recycling belt (23) corresponds to the material slag belt (25).

3. The off-line raw mill circulation system of claim 1, wherein: the three-way gate valve device (19) comprises a gate valve channel (7), three inclined sealing flanges (12) are arranged in the channel, a bearing seat (9) is arranged at the upper end of each sealing flange (12) in the channel, and the bearing seat (9) is provided with a gate valve plate (8) through a rotating shaft (13); an opening and closing brake oil cylinder (11) connected with a rotating shaft (13) is arranged outside the channel, a wear-resistant lining plate is arranged on the inner surface of the channel, and an installation notch (14) is arranged on the wear-resistant lining plate corresponding to the bearing seat (9).

4. The off-line raw mill circulation system of claim 3, wherein: the wear-resistant lining plate is of a splicing structure, the wear-resistant lining plate of the splicing structure comprises two bearing mounting surfaces and side surfaces, the bearing mounting surfaces comprise triangular bodies (6) below one side of an acute angle of the inclined sealing flange (12), and the triangular bodies (6) and the sealing flange (12) are combined to form a right-angled triangle by taking a vertical side of the triangular bodies (6) as a right-angle side; a trapezoid body (15) with a large upper part and a small lower part is arranged on the obtuse angle side of the sealing flange (12), and a right-angle side is arranged on the side, which is not contacted with the sealing flange (12), of the trapezoid body (15); a rectangular body (1) is arranged on the side of the triangular body (6), a special-shaped body (2) is arranged above the rectangular body (1), and a gap is arranged on the special-shaped body (2) corresponding to the bearing seat (9); one side of the right-angle side of the special-shaped body (2) is provided with an upper plate body (3), one side of the notch of the special-shaped body (2) is also provided with the upper plate body (3), a gap is arranged between the upper plate body (3) and the notch, and the side surface is an integral plate or a split plate.

5. The off-line raw mill circulation system of claim 4, wherein: the rectangular body (1) and the trapezoid body (15) are both arranged into an upper part and a lower part, the upper part and the lower part of the rectangular body (1) are completely the same, the heights of the rectangular body (1) and the trapezoid body (15) are the same, the heights of the upper half part of the rectangular body (1) and the upper half part (4) of the trapezoid body (15) are the same, and the heights of the lower half part of the rectangular body (1) and the lower half part (5) of the trapezoid body (15) are the same.

6. The off-line raw mill circulation system of claim 5, wherein: the upper plate body (3) is rectangular and is formed by splicing two parts which are equal left and right.

7. The off-line raw mill circulation system of claim 3, wherein: the wear-resistant lining plate is fixed on the inner surface of the gate valve channel (7) through a countersunk screw.

8. The off-line raw mill circulation system of claim 1, wherein: and a permanent magnet iron removal device (27) is arranged at the tail end of the material slag belt (25).