CN210700387U

CN210700387U - Seal structure of grinding roller door of vertical mill

Info

Publication number: CN210700387U
Application number: CN201920836145.3U
Authority: CN
Inventors: 张红; 李大鹏; 阴旭辉
Original assignee: Jidong Heidelberg Fufeng Cement Co ltd
Current assignee: Jidong Heidelberg Fufeng Cement Co ltd
Priority date: 2019-06-04
Filing date: 2019-06-04
Publication date: 2020-06-09
Anticipated expiration: 2029-06-04

Abstract

The utility model relates to the technical field of vertical mill sealing, and discloses a sealing structure of a grinding roller door of a vertical mill, which comprises a vertical mill body, wherein the vertical mill body is wrapped by an outer steel plate; the vertical mill body is provided with a grinding roller door plate, and a grinding roller protective plate is arranged on the inner side of the grinding roller door plate; the device also comprises an inner sealing structure; the inner sealing structure comprises a first pressing plate, a second pressing plate and a sealing belt; the first pressing plate is arranged above the grinding roller door plate; the second pressing plate is arranged above the grinding roller protection plate; the sealing strip is respectively connected with the grinding roller door plate and the grinding roller guard plate in a pressing mode through a first pressing plate and a second pressing plate. The utility model can effectively reduce the energy consumption caused by air leakage of the vertical mill device, and has strong continuous usability and reliable performance; the utility model discloses an old and useless belt is as main sealing material, and the old and useless resource of recovery that can be fine is under the prerequisite that satisfies the production needs, realizes old and useless resource and recycles.

Description

Seal structure of grinding roller door of vertical mill

Technical Field

The utility model relates to a found sealed technical field of the mill, especially relate to a seal structure of grinding roller door immediately.

Background

The vertical mill air leakage always troubles the optimization of power consumption of cement enterprises, in most vertical mill equipment, a bearing of a grinding roller is exposed, the movable range of a lifting roller is large, the air leakage is serious, and each enterprise is subjected to the improvement of a sealing structure, but the use effects are different. Most sealing structures are long in manufacturing period, difficult to construct, short in service period and serious in air leakage of the device, the increase of the power consumption of raw material distribution is influenced, the oxygen content of the kiln tail is increased, the use cost of ammonia water is increased, and the like.

Generally, the sealing of the grinding roller door of the vertical grinding mill is realized by stacking waste filter bags between the movable part of the grinding roller protective plate and the gap of the grinding roller door, mounting bolts on the grinding roller protective plate and the grinding roller door, covering the stacked waste filter bags with silica gel canvas or three-proofing cloth, and tightly pressing the two sides with pressing plates to form a sealing device to prevent air from leaking into the interior of the mill device. However, the following problems exist during the operation: 1. in the using process, the grinding roller guard plate and the filter bag are frequently rubbed, the filter bag is sucked into the mill after being worn, the wear resistance of the silica gel canvas or the three-proofing cloth is poor, the device is worn out in a short time, and the air leakage of the device is serious; 2. when a new grinding roller is used for 3-4 months, the grinding roller needs to be turned over, when the grinding roller is turned over, a grinding roller door needs to be removed, and the sealing needs to be removed, so that the maintenance time of the grinding roller is prolonged; 3. the existing grinding roller door sealing device is complex in manufacturing process, time-consuming and labor-consuming.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model discloses a sealing structure of a grinding roller door of a vertical mill, which can effectively reduce the energy consumption caused by air leakage of the vertical mill, and has strong continuous usability and reliable performance; the utility model discloses an old and useless belt is as main sealing material, and the old and useless resource of recovery that can be fine is under the prerequisite that satisfies the production needs, realizes old and useless resource and recycles. The utility model discloses a concrete technical scheme as follows:

a sealing structure of a grinding roller door of a vertical mill comprises a vertical mill body, wherein the vertical mill body is wrapped by an outer steel plate; the vertical mill body is provided with a grinding roller door plate, and a grinding roller protective plate is arranged on the inner side of the grinding roller door plate; the device also comprises an inner sealing structure; the inner sealing structure comprises a first pressing plate, a second pressing plate and a sealing belt; the first pressing plate is arranged above the grinding roller door plate; the second pressing plate is connected with the grinding roller protection plate; the sealing strip is respectively connected with the grinding roller door plate and the grinding roller guard plate in a pressing mode through a first pressing plate and a second pressing plate.

Has the advantages that: a certain gap usually exists between the grinding roller door plate and the grinding roller guard plate, and air leakage of the vertical mill usually enters the vertical mill device through the gap; in order to make the sealing effect better, the grinding roller guard plate is provided with a second pressing plate; one end of the sealing belt, which is connected with the grinding roller guard plate, is tightly pressed through a third pressing plate; the utility model discloses in, mainly used sealing belt as the sealing member, sealing belt's wearability is good, life cycle is long to the maintenance cost is low, so sealing belt can be fine realize immediately grinding device's the control of leaking out as the sealing member.

Preferably, a wool felt for improving the flatness of the grinding roller door plate is arranged between the sealing belt and the grinding roller door plate.

Has the advantages that: when the sealing effect of the sealing belt is ensured, the grinding roller door plate has good flatness, so that after the first pressing plate presses the sealing belt tightly, no concave cavity is formed, and air can be blown into the vertical grinding device from the concave cavity; the utility model uses the wool felt to solve the problem; the wool felt has the characteristics of softness, toughness and toughness, good fiber elasticity, comfortable touch feeling and good reducibility, and can well fill up the gap between the door plate of the grinding roller and the sealing belt; when using the wool felt, only need with the wool felt fill in need improve the position of roughness can, of course, also can fill in the whole junction of grinding roller door plant and sealing belt, make first clamp plate compress tightly can.

Preferably, the liquid crystal display further comprises an outer sealing structure; the outer sealing structure is arranged between the grinding roller protection plate and the outer steel plate; the outer sealing structure comprises a U-shaped belt and a straight belt; the closed end of the U-shaped belt is a closed end, and the end far away from the closed end is an open end; the closed end is connected with the straight belt through the fixing piece, so that the outer sealing structure is of a reversed-square structure; the inner side of the outer sealing structure is connected with the grinding roller guard plate through a fixing piece, and the outer side of the outer sealing structure is connected with the outer steel plate through a fixing piece.

Has the advantages that: the arrangement of the external sealing structure can well realize double-layer sealing, so that the utility model has better sealing effect; the gap between the grinding roller protective plate and the outer steel plate can be well sealed by the outer sealing structure with the square-shaped structure, if the inner sealing structure leaks, the air actually provided in the outer sealing structure is very little, and the fact that only a small amount of air can enter the vertical grinding device under the condition of air leakage is ensured; when the grinding roller is turned over, the door plate of the grinding roller needs to be removed, in the utility model, the straight belt can be kept on the sealing structure, and the effect of linked use is achieved; and the interface between the straight belt and the U-shaped belt is only provided with two parts, so that the sealing effect can be well ensured.

Preferably, a third pressing plate is arranged on the outer side of the outer steel plate; the third pressure plate is connected with the outer sealing structure through a fixing piece.

Has the advantages that: the tight connection between assurance outer steel sheet and the external seal structure that the third clamp plate can be fine makes the air can not get into the vertical grinding device through the clearance between outer steel sheet and the external seal structure to guarantee the leakproofness of external seal structure.

Preferably, the U-shaped belt comprises a plurality of waste belts; a plurality of waste belts are bonded by cold pressing.

Has the advantages that: the utility model realizes the bonding of the U-shaped belts by utilizing the waste belts, thus realizing the recycling of waste resources; the utility model discloses make full use of the wear-resisting characteristics of belt to make old and useless resource can realize saving of the energy.

Preferably, the grinding roller door plate is a wear-resistant lining plate.

Has the advantages that: the wear-resistant lining plate is a lining plate which is formed by processing a wear-resistant steel plate through production processes such as cutting, plate bending deformation, punching, welding and the like; the wear-resistant steel plate has the performances of high wear resistance, impact resistance, deformability, weldability and the like, can be directly processed into engineering parts like steel plates by processing links such as curling deformation, cutting, punching and the like, so as to meet the requirement of putting the wear industrial and mining into use; the utility model discloses the time of usable big maintenance, with the original steel sheet of grinding roller door plant change for wear-resisting welt, make interior seal structure after the work vibrations of founding the mill device, still can keep good encapsulated situation.

Compared with the prior art, the utility model utilizes double-layer sealing, so that the utility model can achieve good sealing effect; the utility model has the advantages that the gap between the grinding roller door plate and the grinding roller guard plate is well sealed by the inner sealing structure; the utility model realizes the sealing of the space between the outer steel plate and the grinding roller guard plate through the outer sealing structure, and only a small amount of air can enter the vertical grinding device when the inner sealing effect is poor; furthermore, the utility model discloses utilize old and useless belt as main sealing member, realized recycling of old and useless resource.

Drawings

Fig. 1 is a schematic view of an inner sealing structure in an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of the grinding roller guard plate in the embodiment of the present invention.

Fig. 3 is a schematic diagram of an outer seal structure in an embodiment of the present invention.

In the figure: 1-outer steel plate; 2-grinding roller door plate; 3-grinding roll guard board; 4-a first platen; 5-a second press plate; 6-sealing the belt; 7-U-shaped belt; 8-straight belt; 9-a third press plate; 10-waste belts.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that the indication of the position or the positional relationship is based on the position or the positional relationship shown in the drawings, or the position or the positional relationship that the utility model is usually placed when using, or the position or the positional relationship that the skilled person conventionally understands, or the position or the positional relationship that the utility model is usually placed when using, and is only for the convenience of describing the present invention and simplifying the description, but does not indicate or suggest that the indicated device or element must have a specific position, be constructed and operated in a specific position, and thus, cannot be understood as limiting the present invention. Furthermore, the terms "first" and "second" are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. For those skilled in the art, the drawings of the above terms in the embodiments with specific meanings in the present invention can be understood in specific situations, and the technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

The invention will be further explained with reference to the drawings and the specific embodiments.

As shown in fig. 1 to 3, a sealing structure of a grinding roller door of a vertical mill comprises a vertical mill body, wherein the vertical mill body is wrapped by an outer steel plate 1; the vertical mill body is provided with a grinding roller door plate 2, and a grinding roller guard plate 3 is arranged on the inner side of the grinding roller door plate 2; the device also comprises an inner sealing structure; the inner sealing structure comprises a first pressing plate 4, a second pressing plate 5 and a sealing belt 6; the first pressing plate 4 is arranged above the grinding roller door panel 2; the second pressing plate 5 is connected with the grinding roller protection plate 3; the sealing belt 6 is respectively connected with the grinding roller door plate 2 and the grinding roller guard plate 3 in a pressing mode through the first pressing plate 4 and the second pressing plate 5.

A certain gap usually exists between the grinding roller door plate 2 and the grinding roller guard plate 3, and air leakage of the vertical mill usually enters the vertical mill device through the gap, the sealing belt 6 is pressed and fixed on the grinding roller door plate 2 through the first pressing plate 4, so that the gap is sealed, and the air leakage of the vertical mill device is avoided; in order to make the sealing effect better, the grinding roller guard plate 3 is provided with a second pressing plate 5; one end of the sealing belt 6 connected with the grinding roller guard plate 3 is tightly pressed through a third pressing plate 9; the utility model discloses in, mainly used sealing belt 6 as the sealing member, sealing belt 6's wearability is good, life cycle is long to the maintenance cost is low, so sealing belt 6 can be fine realize immediately grinding device's the control that leaks out as the sealing member.

For better use the utility model discloses, be equipped with the wool felt that is used for improving grinding roller door plant 2 roughness between sealing belt 6 and the grinding roller door plant 2. When the sealing effect of the sealing belt 6 is ensured, the grinding roller door panel 2 has good flatness, so that after the first pressing plate 4 presses the sealing belt 6 tightly, no concave cavity is formed, and air can enter the vertical grinding device from the concave cavity; the utility model uses the wool felt to solve the problem; the wool felt has the characteristics of softness, toughness and toughness, good fiber elasticity, comfortable touch feeling and good reducibility, and can well fill the gap between the grinding roller door plate 2 and the sealing belt 6; when the wool felt is used, the wool felt is only required to be filled in the position where the flatness needs to be improved, and of course, the wool felt can also be filled in the whole connecting position of the grinding roller door plate 2 and the sealing belt 6, so that the first pressing plate 4 is pressed tightly.

In order to better use the utility model, the utility model also comprises an outer sealing structure; the outer sealing structure is arranged between the grinding roller guard plate 3 and the outer steel plate 1; the outer sealing structure comprises a U-shaped belt 7 and a straight belt 8; the closed end of the U-shaped belt 7 is a closed end, and the end far away from the closed end is an open end; the closed end is connected with the straight belt 8 through a fixing piece, so that the outer sealing structure is of a reversed-square structure; the inner side of the outer sealing structure is connected with the grinding roller guard plate 3 through a fixing piece, and the outer side of the outer sealing structure is connected with the outer steel plate 1 through a fixing piece. The arrangement of the external sealing structure can well realize double-layer sealing, so that the utility model has better sealing effect; the gap between the grinding roller guard plate 3 and the outer steel plate 1 can be well sealed by the outer sealing structure with the square-back structure, if the inner sealing structure leaks, the air actually provided in the outer sealing structure is very little, and the fact that only a small amount of air can enter the vertical grinding device under the condition of air leakage is ensured; when the grinding roller is turned over, the grinding roller door plate 2 needs to be removed, in the utility model, the straight belt 8 can be kept on the sealing structure, and the effect of linked use is achieved; and the interface between the straight belt 8 and the U-shaped belt 7 is only provided with two parts, so that the sealing effect can be well ensured.

In order to better use the utility model, a third pressing plate 9 is arranged on the outer side of the outer steel plate 1; the third pressure plate 9 is connected with the outer sealing structure through a fixing piece. The tight connection between the outer steel plate 1 and the outer sealing structure can be well guaranteed through the third pressing plate 9, so that air cannot enter the vertical grinding device through a gap between the outer steel plate 1 and the outer sealing structure, and the sealing performance of the outer sealing structure is guaranteed.

For better use of the utility model, the U-shaped belt 7 comprises a plurality of waste belts 10; a plurality of waste belts 10 are bonded by cold pressing. The utility model realizes the bonding of the U-shaped belt 7 by utilizing the waste belt 10, thus realizing the recycling of waste resources; the utility model discloses make full use of the wear-resisting characteristics of belt to make old and useless resource can realize saving of the energy.

For better use the utility model discloses, grinding roller door plant 2 is wear-resisting welt. The wear-resistant lining plate is a lining plate which is formed by processing a wear-resistant steel plate through production processes such as cutting, plate bending deformation, punching, welding and the like; the wear-resistant steel plate has the performances of high wear resistance, impact resistance, deformability, weldability and the like, can be directly processed into engineering parts like steel plates by processing links such as curling deformation, cutting, punching and the like, so as to meet the requirement of putting the wear industrial and mining into use; the utility model discloses the time of usable big maintenance, with grinding roller door plant 2 original steel sheet change for wear-resisting welt, make interior seal structure after the work vibrations of founding the mill device, still can keep good encapsulated situation. In this embodiment, the in-line belt 8 and the sealing belt 6 are cut or bonded from waste belts 10, except for the U-shaped belts.

When the inner sealing structure is used, after the wear-resistant lining plate is replaced, the gap between the grinding roller guard plate 3 and the grinding roller door plate 2 is adjusted to be the lowest on the premise of not influencing the lifting of the grinding roller, so that the inner sealing structure can better realize gap sealing; then uniformly welding a plurality of bolts on the wear-resistant lining plate, cutting the sealing belt 6 with proper size, and finishing cold-pressing bonding and punching of the sealing belt 6; finally, the sealing belt 6 is installed on the bolt and is tightly pressed by the first pressing plate 4; detect the clearance between sealed belt 6 and the grinding roller door plant 2 this moment, relax first clamp plate 4 after, fill the clearance with the wool felt, make first clamp plate 4 compress tightly again, just accomplished the assembly of inner seal. The assembly of the outer seal structure is similar to the inner seal structure and will not be described again. It should also be noted that, in addition to the wool felt used for the flattening roller door leaf 2 on the first press plate 4, the pressing points of the second press plate 5 and the third press plate 9 can also be used.

The present invention is not limited to the above-mentioned optional embodiments, and any other products in various forms can be obtained by anyone under the teaching of the present invention, and any changes in the shape or structure thereof, all the technical solutions falling within the scope of the present invention, are within the protection scope of the present invention.

Claims

1. A sealing structure of a grinding roller door of a vertical mill comprises a vertical mill body, wherein the vertical mill body is wrapped by an outer steel plate (1); the vertical mill body is provided with a grinding roller door plate (2), and the inner side of the grinding roller door plate (2) is provided with a grinding roller guard plate (3), and the vertical mill is characterized by further comprising an inner sealing structure; the inner sealing structure comprises a first pressing plate (4), a second pressing plate (5) and a sealing belt (6); the first pressing plate (4) is arranged above the grinding roller door plate (2); the second pressing plate (5) is connected with the grinding roller protection plate (3); and the sealing belt (6) is respectively tightly connected with the grinding roller door plate (2) and the grinding roller guard plate (3) through a first pressing plate (4) and a second pressing plate (5).

2. A sealing structure of a grinding roller door of a vertical grinding roller as claimed in claim 1, characterized in that wool felt for improving the flatness of the grinding roller door panel (2) is arranged between the sealing belt (6) and the grinding roller door panel (2).

3. A seal arrangement for a grinding roll door of a vertical mill according to claim 1, further comprising an outer seal arrangement; the outer sealing structure is arranged between the grinding roller guard plate (3) and the outer steel plate (1); the outer sealing structure comprises a U-shaped belt (7) and a straight belt (8); the closed end of the U-shaped belt (7) is a closed end, and the end far away from the closed end is an open end; the closed end is connected with a straight belt (8) through a fixing piece, so that the outer sealing structure is of a reversed-square structure; the inner side of the outer sealing structure is connected with the grinding roller guard plate (3) through a fixing piece, and the outer side of the outer sealing structure is connected with the outer steel plate (1) through a fixing piece.

4. A sealing structure of a grinding roller door of a vertical grinding mill according to claim 3, characterized in that a third pressing plate (9) is provided on the outer side of the outer steel plate (1); and the third pressure plate (9) is connected with the outer sealing structure through a fixing piece.

5. A sealing structure of a grinding roller door of a vertical mill according to claim 3, wherein the U-shaped belt (7) comprises a plurality of waste belts (10); a plurality of waste belts (10) are bonded by cold pressing.

6. A sealing structure of a vertical grinding roller door as claimed in any one of claims 1 to 5, characterized in that the grinding roller door panel (2) is a wear-resistant lining plate.